HK1249299B - Method and apparatus for determining power offsets of a physical downlink shared channel - Google Patents

Description

Method and apparatus for determining power offset of a physical downlink shared channel

Related cases

This application claims priority to U.S. Provisional Patent Application No. 62/160,740, filed May 13, 2015, which is incorporated herein by reference in its entirety.

Technical Field

Examples described herein generally relate to wireless communication devices.

Background Art

Wireless communication networks, such as those operating in accordance with one or more of the Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) and LTE-Advanced (LTE-A) standards, can rely on orthogonal multiplexing of resources associated with most, if not all, physical channels. However, considering actual deployments of LTE-A wireless communication networks, the distribution of user equipment (UE) in cells served by evolved Node B (eNB) base stations can result in a significant difference in the distances between the eNB and the served UEs. For example, a first UE may be located near the serving eNB, while a second UE may be located relatively further away from the serving eNB. In conventional LTE-A systems, these two UEs can be served in orthogonal frequency division multiple access (OFDMA) by allocating non-overlapping time and frequency resources (e.g., resource blocks (RBs)). However, this difference in distance can be exploited to further improve the spectral efficiency of downlink transmissions from the eNB. More specifically, this improvement can be achieved by using a non-orthogonal multiplexing scheme, which can also be referred to as multi-user overlay transmissions.

Summary of the Invention

According to one aspect of the present application, a device for demodulating a signal is disclosed, comprising: logic, at least a portion of which is located in hardware, the logic being at a user equipment (UE), the user equipment being capable of operating in accordance with one or more Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including Long Term Evolution (LTE-Advanced) (LTE-A), the logic being used to: receive power offset information in a radio resource control (RRC) element (IE) for a serving physical downlink shared channel (PDSCH) and/or a coordinated scheduling PDSCH, wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time-frequency resources to form a multiplexed PDSCH; receive downlink control information indicating modulation information for the serving PDSCH; and determine, for one or more resource blocks (RBs), a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH based on the power offset information or the modulation information.

According to another aspect of the present application, a method for demodulating a signal is disclosed, comprising: receiving power offset information in a radio resource control (RRC) element (IE) for a serving physical downlink shared channel (PDSCH) and/or a coordinated scheduling PDSCH on a user equipment (UE) capable of operating according to one or more Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including Long Term Evolution (LTE-Advanced) (LTE-A), wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time-frequency resources to form a multiplexed PDSCH; receiving downlink control information indicating modulation information for the serving PDSCH; and determining, for one or more resource blocks (RBs), based on the power offset information or the modulation information, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH.

According to another aspect of the present application, a machine-readable medium is disclosed, comprising a plurality of instructions. In response to the plurality of instructions being executed on a system on a user equipment (UE), the system is caused to perform the aforementioned method.

According to another aspect of the present application, a device for demodulating a signal is disclosed, comprising: logic, at least a portion of which is located in hardware, the logic being at a base station, the base station being capable of operating according to one or more Third Generation Partnership Project 3GPP Long Term Evolution LTE standards including Long Term Evolution LTE Advanced LTE-A, the logic being used to: send power offset information in a radio resource control RRC element IE to a user equipment UE, the power offset information being used for a service physical downlink shared channel PDSCH and/or a coordinated scheduling PDSCH, wherein the service PDSCH and the coordinated scheduling PDSCH share the same time-frequency resources to form a multiplexed PDSCH; send downlink control information indicating modulation information for the service PDSCH; and send data to the UE via the service PDSCH using the same time and frequency resources as those used for the coordinated scheduling PDSCH, wherein for one or more resource blocks RB, the UE determines a first detection power offset value for the service PDSCH and a second detection power offset value for the coordinated scheduling PDSCH based on the power offset information or the modulation information.

According to another aspect of the present application, a method for demodulating a signal is disclosed, comprising: sending power offset information in a radio resource control (RRC) element (IE) to a user equipment (UE) on a base station capable of operating according to one or more Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including Long Term Evolution (LTE-Advanced) (LTE-A), wherein the power offset information is used for a serving physical downlink shared channel (PDSCH) and/or a coordinated scheduling PDSCH, wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time-frequency resources to form a multiplexed PDSCH; sending downlink control information indicating modulation information for the serving PDSCH; and sending data to the UE via the serving PDSCH by using the same time-frequency resources as those used for the coordinated scheduling PDSCH, wherein, for one or more resource blocks (RBs), the UE determines, based on the power offset information or the modulation information, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH.

According to another aspect of the present application, a machine-readable medium is disclosed, comprising a plurality of instructions. In response to the plurality of instructions being executed on a system on a base station, the plurality of instructions causes the system to perform the method as described above.

According to another aspect of the present application, a device for demodulating a signal is disclosed, comprising a module for executing the method as described above.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 shows an example of a system.

FIG2 illustrates an exemplary physical downlink shared channel (PDSCH) scheme.

FIG3 shows an exemplary PDSCH-Config information element (IE).

FIG4 illustrates an exemplary power offset table.

FIG5 shows an example of a first logic flow.

FIG6 shows an exemplary block diagram of a first apparatus.

FIG7 shows an example of the second logic flow.

FIG8 shows an example of a first storage medium.

FIG. 9 shows an exemplary block diagram of a second apparatus.

FIG10 shows an example of the third logic flow.

FIG11 shows an example of a second storage medium.

FIG12 shows an example of a device.

FIG13 illustrates an exemplary user equipment (UE) apparatus.

FIG14 shows an example of a broadband wireless access system.

DETAILED DESCRIPTION

Examples are generally directed to improvements that may involve the use of wireless mobile telecommunications cellular or wireless mobile broadband technology. Wireless mobile broadband technology may include any wireless technology suitable for use with a wireless device or user equipment (UE), such as one or more third-generation (3G), fourth-generation (4G), or emerging fifth-generation (5G) wireless standards, amendments, developments, and variants. Examples of wireless mobile broadband technology may include, but are not limited to, any of the following: Institute of Electrical and Electronics Engineers (IEEE) 802.16m and 802.16p standards, Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) and LTE-Advanced (LTE-A) standards, and International Mobile Telecommunications Advanced (IMT-ADV) standards, including amendments, developments, and variants thereof. Other suitable examples include, but are not limited to, Global System for Mobile Communications (GSM)/Enhanced Data Rates for GSM Evolution (EDGE) technology, Universal Mobile Telecommunications System (UMTS)/High Speed Packet Access (HSPA) technology, Worldwide Interoperability for Microwave Access (WiMAX) or WiMAX II technology, Code Division Multiple Access (CDMA) 2000 system technology (e.g., CDMA2000 1xRTT, CDMA2000 EV-DO, CDMAEV-DV, etc.), High Performance Radio Metropolitan Area Network (HIPERMAN) technology defined by the European Telecommunications Standards Institute (ETSI) Broadband Radio Access Network (BRAN), Wireless Broadband (WiBro) technology, GSM with General Packet Radio Service (GPRS) system (GSM/GPRS) technology, High Speed Downlink Packet Access (HSDPA) technology, High Speed Orthogonal Frequency Division Multiplexing (OFDM) Packet Access (HSOPA) technology, High Speed Uplink Packet Access (HSUPA) system technology, 3GPP LTE/System Architecture Evolution (SAE) of Rel. 8, 9, 10, 11 or 12, etc. Examples are not limited to the present content.

By way of example and not limitation, various examples may be described with specific reference to various 3GPP radio access network (RAN) standards, such as 3GPP Universal Terrestrial Radio Access Network (UTRAN), 3GPP Evolved Universal Terrestrial Radio Access Network (E-UTRAN), and 3GPP's suite of UMTS and LTE/LTE-Advanced technical specifications (in the case of LTE/LTE-Advanced, collectively referred to as the "3GPP LTE specifications" under the 36-series of technical specifications), and IEEE 802.16 standards (e.g., IEEE 802.16-2009 standard and the current third revision of IEEE 802.16, referred to as "802.16 Rev 3," which incorporates standards 802.16-2009, 802.16h-2010, and 802.16m-2011, and including the IEEE 802.16 Draft Amendment to IEEE Standard for WirelessMAN—Advanced Air Interface for Broadband Wireless Access Systems, Enhancements to Support Machine-to-Machine Applications). 16p draft standard of January 2, 2012 (collectively, the "IEEE 802.16 standards"), and any draft, revision, or variant of the 3GPP LTE specifications and IEEE 802.16 standards. Although some embodiments may be described as 3GPP LTE specifications or IEEE 802.16 standard systems by way of example and not limitation, it is understood that other types of communication systems may be implemented as various other types of mobile broadband communication systems and standards. The examples are not intended to be limiting.

Inter-cell interference is considered a major limiting factor in achieving higher network capacity in LTE-A wireless networks. In some conventional systems, inter-cell interference is mitigated by using coordinated multi-point (CoMP) techniques, which help avoid interference using algorithms implemented at the transmitting eNB (e.g., on the network side). However, some recent studies have shown that UE-side interference mitigation can also provide potential spectral efficiency gains by taking into account the spatial characteristics of interference using linear minimum mean square error (MMSE) interference suppression combining (MMSE-IRC) or nonlinear network-assisted interference cancellation and suppression (NAICS) receivers.

Enhanced UE-side interference mitigation can be achieved by considering a more advanced NAICS receiver, such as a maximum likelihood (R-ML) or symbol-level interference cancellation (SLIC) receiver, which can utilize additional information about the interference structure. For example, a NAICS receiver can estimate interference parameters, such as, but not limited to, transmission mode, interference presence, power offset, modulation order, or precoding, to facilitate prior interference cancellation and suppression. To facilitate the operation of such a receiver, higher-layer signaling assistance can be provided. The higher-layer signaling assistance can indicate parameters of the interfering signal, which can enable at least some blind detection on the UE side for some signal parameters that may be used to reduce inter-cell interference. For example, the indicated parameters can include, but are not limited to, a multicast broadcast single frequency network (MBSFN) subframe pattern, a power offset subset, a number of cell-specific reference signal (CRS) ports, a transmission mode set, or a cell ID.

According to some examples, principles associated with NAICS receivers handling inter-cell interference (e.g., blind detection of power offsets) can be extended to multi-user overlay transmission scenarios by providing higher layer (e.g., radio resource control (RRC)) signaling assistance related to intra-cell interference that may arise due to multiplexing two or more signals to two or more UEs within the same cell on the same time-frequency resources (e.g., multi-user overlay transmission). These and other challenges require the examples described herein.

FIG1 illustrates an example system 100. In some examples, system 100 may be arranged to operate non-compliant with one or more 3GPP LTE standards, including LTE-A. For these examples, as shown in FIG1 , system 100 may include UEs 110 and 120 and an eNB 130. FIG1 also illustrates eNB 130 having a physical downlink shared channel (PDSCH) 135 with UEs 110 and 120. As shown in FIG2 , UE 110 may be relatively closer to eNB 130 than UE 120.

In some examples, eNB 130 can implement a non-orthogonal multiplexing scheme, which may also be referred to as multi-user superposition transmission. In these examples, the eNB can multiplex a service signal that uses a lower-order modulation, such as quadrature phase shift keying (QPSK), to reach UE 120 via PDSCH 135, and a service signal that uses a higher-order modulation, such as 16-QAM, to reach UE 110 via PDSCH 135. In these examples, higher-order modulation, such as 16QAM, may be impractical or difficult to demodulate information/data in the signal transmitted via PDSCH 135 due to potential signal propagation losses, while the lower-order QPSK signal can be transmitted to UE 120 at a greater distance.

FIG2 illustrates an exemplary PDSCH scheme 200. In some examples, eNB 130 utilizes PDSCH scheme 200 for multi-user overlay transmission of QPSK and 16QAM to respective UEs 120 and 110 to transmit PDSCH 135 to these UEs. For these examples, PDSCH scheme 200 as shown in FIG2 illustrates an example of the same time-frequency resources being used to serve UEs 110 and 120. Furthermore, for these examples, the total transmit power of eNB 130 can be divided into _P1 and _P2 for designated signals for UEs 110 and 120, respectively. In other words, the signals can be transmitted via PDSCH 135 on the same time-frequency resources, as shown in PDSCH scheme 200 of FIG2.

According to some examples, the signal power to noise ratio of PDSCH 135 on UE 110 may be higher than the signal power to noise ratio of PDSCH 135 on UE 120. This difference may be because UE 120 experiences greater propagation loss due to being farther away from eNB 130. Furthermore, the signal received via PDSCH 135 on UE 110 may include a serving/useful signal (hereinafter referred to as "serving PDSCH") and an interference/coordinated scheduling signal (hereinafter referred to as "coordinated scheduling PDSCH"), which has a serving/useful signal for UE 120. When demodulating the serving PDSCH on UE 110, the coordinated scheduling PDSCH may introduce intra-cell interference, and the relative noise level of UE 110 may be much lower than that of UE 120. For these examples, appropriate modulation and coding scheme (MCS) assignments and power profiles of _P1 and _P2 in the signals transmitted to respective UEs 110 and 120 via PDSCH 135 can allow both UEs to receive information on the same time-frequency resources via these signals transmitted via PDSCH 135. More specifically, since the relative noise level of UE 110 is lower than that of UE 120, UE 110 is able to receive the coordinated scheduling PDSCH (treating the coordinated scheduling PDSCH as interference) and then subtract the recovered coordinated scheduling PDSCH from the signal received via PDSCH 135 for demodulating the serving PDSCH in the presence of noise. As long as the MCS assigned to UE 110 does not exceed the capacity of the communication channel in the absence of any interference, UE 110 can receive the information included in the received and demodulated useful signal included in the serving PDSCH.

FIG3 illustrates an example PDSCH-Config IE 300. In some examples, to enable a UE (e.g., UE 110) in a wireless network to suppress or eliminate intra-cell interference on a PDSCH (e.g., associated with multi-user overlay transmissions), the UE may need to determine the power offset and modulation order used for a serving PDSCH and a coordinated scheduled PDSCH. In some examples, higher layer signaling, such as an RRC IE, may be used by the eNB to disseminate at least some power offset information for at least the serving PDSCH. For some examples, the eNB may employ higher layer signaling by using a PDSCH-Config IE of the example format of the PDSCH-Config IE 300, which may include one or more power offset values p-dListServ. For these examples, p-dListServ may correspond to possible power offset values that the eNB may use to transmit the serving PDSCH. The PDSCH-Config IE of the example format of the PDSCH-Config IE 300 may also include one or more p-dListCoSch values corresponding to possible power offsets that the eNB may use to transmit the scheduled PDSCH.

According to some examples, the power offset subset signaled in the p-dListServ and p-dListCoSch fields of the PDSCH-Config IE of the exemplary format of the PDSCH-Config IE 300 may use only values from the quantization set P-d, as shown in FIG3 . The actual power offset value used by the eNB for serving and potentially coordinated scheduling of PDSCHs on a given physical resource block may be determined by the UE from the indicated list using blind detection based on the received PDSCH signal.

In some examples, as shown in Figure 3, the power offset parameter "P-d" can be defined as the ratio of the serving/coordinated scheduling PDSCH EPRE (energy per resource element) to the cell-specific reference signal (CRS) EPRE or the user-specific reference signal (UE-RS) EPRE. In another example, the power offset parameter "P-d" can be defined as the ratio of the serving/coordinated scheduling PDSCH EPRE to the total PDSCH EPRE.

In some examples, the indicated power offset value or ratio included in the parameters "pdListServ" and "p-dListCosch" may depend on the modulation order used by the serving and coordinated scheduled PDSCHs (e.g., QPSK, 16QAM, 64QAM, 256QAM). For these examples, the eNB may provide higher layer signaling of "p-dListServ" and "p-dListCoSch" for each modulation order (e.g., p-dListServQpsk, p-dListServ16Qam, etc.). For one or more given resource blocks (RBs), the UE may determine the actual or detected power offset value for the serving PDSCH and the coordinated scheduled PDSCH based on both the received PDSCH, the modulation information for the serving PDSCH indicated by the DCI, and the power offset value or ratio included in the parameters "p-a" and/or "p-d". According to some examples, the p-a parameter may be determined based on TS 36.213 V12.5.0, entitled "3GPP; TS GroupRAN; E-UTRA; Physical layer procedures (Release 12)" published in March 2015 and hereinafter referred to as TS 36.213. Although the present invention is not limited to Rel. 12, subsequent releases of Rel. 12 of LTE/SAE and/or subsequent releases of TS 36.213 are also contemplated.

In some examples, only one of the serving PDSCH power offset value or the coordinated scheduling power offset value may be indicated in the IE of the exemplary format of the PDSCH-Config IE 300. For these examples, a UE receiving the IE can assume that the total power of the serving and coordinated scheduling PDSCH signals may be equal to "X", where X is equal to 1 or a parameter indicated in "p-a" (e.g., as defined in TS 36.213) or some other value signaled to the UE via other types of IEs associated with higher layer signaling.

According to some examples, after receiving a power offset value indicated in an RRC IE of the exemplary format of the PDSCH-Config IE 300 and using modulation information received via DCI, the UE may apply a power offset detection algorithm to determine an actual or detected power offset for transmitting the serving and coordinated scheduling PDSCH for each or one or more RBs used for or associated with a multi-user overlay transmission. The UE may then include logic and/or features for demodulating the serving PDSCH based on the first and second detected power offset values. The demodulation may include suppressing the coordinated scheduling PDSCH based on the detected power offset value of the coordinated scheduling PDSCH to reduce interference from the multi-user overlay transmission caused by the coordinated scheduling PDSCH transmitted by the eNB using the same time and frequency resources as the serving PDSCH.

FIG4 illustrates an example of a power offset table 400. The power offset table 400, as shown in FIG4 , includes an assigned power offset value for the serving PDSCH (“PdOffsetServ”) and an assigned power offset value for the coordinated scheduling PDSCH (“PDOffsetCo-Sch”). The assigned power offset value may be in decibels (dB). In some examples, the eNB can select power offset values for both the serving PDSCH and the coordinated scheduling PDSCH based on the power offset table 400 such that the composite constellation of the multiplexed PDSCH can result in a constellation supported by a 3GPP LTE-A wireless network (e.g., QPSK, 16QAM, 64QAM, or 256QAM). The selected power offsets for the serving and coordinated scheduling PDSCHs at the UE can be determined by detecting the modulation order of the composite constellation. For these examples, the modulation order of the composite constellation is shown in the “Multiplexed PDSCH” column of the power offset table 400. For example, if the UE detects 64QAM in a composite constellation (multiplexing PDSCH) and is informed of the QPSK modulation order for the serving PDSCH via DCI, then the assigned power offsets for both the serving and coordinated scheduling PDSCH signals can be determined by matching 64QAM and QPSK according to the power offset table 400. According to the power offset table 400, the matching of 64QAM and QPSK results in an assigned power offset of 10log ₁₀ (16/21) dB for the serving PDSCH and an assigned power offset of 10log ₁₀ (5/21) dB for the coordinated scheduling PDSCH.

In some examples, special cases of 0 dB power offset for serving PDSCH or -∞ power offset for coordinated scheduled PDSCH are shown in power offset table 400 to support transmission cases from the eNB without multiplexing of PDSCH on the same time and frequency resources (e.g., no interference from coordinated scheduled PDSCH is expected).

FIG5 illustrates an example of a logic flow 500. Logic flow 500 may be implemented or performed by elements of system 100 (e.g., UE 110 or UE 120) as shown in FIG1 . Furthermore, a PDSCH scheme, such as PDSCH scheme 200 shown in FIG2 , and PDSCH-Config IE 300 and power offset table 400 shown in FIG3 and FIG4 may be associated with logic flow 500. However, logic flow 500 is not limited to implementations using elements of system 100, PDSCH scheme 200, PDSCH-Config IE 300, or power offset table 400 as shown in or described above with respect to FIG1 through FIG4 .

Starting at block 502, the UE may receive a power offset subset for serving and/or coordinating scheduling of a PDSCH via higher layer signaling. In some examples, the higher layer signaling may include an RRC IE in the exemplary format of PDSCH-Config IE 300, which is sent from the eNB to the UE to provide power offset information for serving and/or coordinating scheduling of the PDSCH.

In block 504, the UE may also receive physical layer signaling indicating a scheduled serving PDSCH. In some examples, the physical layer signaling may include DCI indicating modulation information for the scheduled serving PDSCH. For these examples, the modulation information may indicate a modulation order for the scheduled serving PDSCH. The modulation order may include, but is not limited to, QPSK, 16QAM, 64QAM, or 256QAM.

In block 506, the UE may include logic and/or features for determining power offsets for serving and coordinated scheduling PDSCHs for each RB using information received via higher physical layer signaling. In some examples, power offset information included in a received RRC IE and modulation information indicated in a DCI may be used to determine a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH for each RB assigned or available to the UE for receiving signals from the eNB via the serving PDSCH. Furthermore, in some examples, power-blind detection of the received PDSCH may also facilitate determining the power offset for each RB.

In block 508, the UE may use the detected power offset to suppress the coordinated scheduled PDSCH. In some examples, the UE may include logic and/or features for suppressing the coordinated scheduled PDSCH based on the power offset value determined for each or at least one or more RBs for the coordinated scheduled PDSCH, to reduce or eliminate interference caused by the coordinated scheduled PDSCH transmitted by the eNB using the same time and frequency resources as used by the serving PDSCH.

In block 510, the serving PDSCH is received using the detected power offset. In some examples, the UE may include logic and/or features for demodulating the serving PDSCH based on the power offset value determined for each or at least one or more RBs for scheduling the PDSCH to receive information or data sent by the eNB via the serving PDSCH. Logic flow 500 then ends.

FIG6 shows a block diagram of an exemplary first apparatus. As shown in FIG6 , the exemplary first apparatus includes apparatus 600. Although apparatus 600 shown in FIG6 has a limited number of elements in certain topologies, it will be appreciated that apparatus 600 may include more or fewer elements in alternative topologies as desired for a given implementation.

The apparatus 600 may include a computer-implemented apparatus 600 having a processor circuit 620 arranged to execute one or more software components 622-a. It is noted that "a," "b," "c," and similar designators used herein are intended to be variables representing any positive integer. Thus, for example, if an embodiment sets a value of a=3, then the complete set of software components 622-a may include components 622-1, 622-2, or 622-3. Examples are not limiting.

According to some examples, apparatus 600 may be implemented in an eNB (eg, eNB 130) capable of operating in accordance with one or more 3GPP LTE specifications, including LTE-A. Examples are not limited in this context.

In some examples, as shown in FIG6 , the apparatus 600 includes a processor circuit 620. The processor circuit 620 can generally be arranged to execute one or more software components 622-a. The processing circuit 620 can be any of a variety of commercially available processors, including but not limited to Intel® and Intel® processors; application, embedded, and security processors; Snapdragon, Intel® and Intel® processors, IBM® and Intel® processors, Core(2) Core i3, Core i5, Core i7, and Intel® processors, and similar processors. Dual microprocessors, multi-core processors, and other multi-processor architectures can also be used as the processing circuit 620. According to some examples, the processor circuit 620 can also be an application-specific integrated circuit (ASIC), and at least some components 622-a can be implemented as hardware elements of the ASIC.

According to some examples, the apparatus 600 may include a power offset component 622-1. The power offset component 622-1 may be executed by the processor circuit 620 to send power offset information for the serving PDSCH and/or the coordinated scheduling PDSCH in an RRC IE to the UE. For these examples, the power offset component 622-1 may send the power offset information in response to the UE detecting 610. The power set information may be based on utilizing multi-user overlay transmission, which may cause intra-cell interference between the serving PDSCH and the coordinated scheduling PDSCH. The power offset component 622-1 may store the serving power offset information 624-a and the coordinated scheduling power offset information 624-b in a data structure, such as a lookup table (LUT). The serving power offset information 624-a may include a serving PDSCH power offset value, and the coordinated scheduling power offset information 624-b may include a coordinated scheduling PDSCH power offset value. These values may be included in a PDSCH-Config IE 630 (e.g., in the exemplary format of the PDSCH-Config IE 300), which may be sent to the UE.

In some examples, apparatus 600 may further include a modulation component 622-2. Modulation component 622-2 may be executed by processor circuit 620 to transmit DCI indicating modulation information for a serving PDSCH and/or a coordinated scheduling PDSCH. For these examples, modulation component 622-2 may store serving modulation information 624-c and coordinated scheduling modulation information 624-d in a data structure, such as a LUT. Serving modulation information 624-c may include modulation order information for a serving PDSCH. Coordinated scheduling modulation information 624-d may include modulation order information for a coordinated scheduling PDSCH. DCI including modulation information for a serving and/or coordinated scheduling PDSCH may be included in DCI 640.

According to some examples, the apparatus 600 may further include a transmitting component 622-3. The transmitting component 622-3 may be executed by the processor circuit 620 to transmit data to the UE via the serving PDSCH using the same time and frequency resources as used for the coordinated scheduling PDSCH. For these examples, the UE may determine, for one or more RBs, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH based on the power offset or modulation information. For these examples, the data may be included in the multiplexed PDSCH 650, and the UE may be able to demodulate the serving PDSCH from the multiplexed PDSCH 650 while suppressing possible intra-cell interference caused by the coordinated scheduling PDSCH.

The various components of apparatus 600 and devices implementing apparatus 600 can be communicatively coupled to each other via various types of communication media to coordinate operations. This coordination may involve a one-way or two-way exchange of information. For example, the components may transmit information in the form of signals transmitted via the communication media. The information may be implemented as signals distributed to various signal lines. In such a distribution, each message is a signal. However, other embodiments may alternatively employ data messages. Such data messages can be sent via various connections. Exemplary connections include parallel interfaces, serial interfaces, and bus interfaces.

Included herein are sets of logical flows representing exemplary methods for implementing novel aspects of the disclosed architecture. Although one or more methods shown herein are shown and described as a series of actions for purposes of simplicity of illustration, those skilled in the art will understand and appreciate that the methods are not limited by the order of the actions. Depending on the actions, some actions may occur in a different order and/or simultaneously than other actions shown and described herein. For example, those skilled in the art will understand and appreciate that the methods may alternatively be represented as a series of interrelated states or events, such as in a state diagram. Furthermore, novel implementations may not require all of the actions shown in the methods.

The logic flow can be implemented in software, firmware, and/or hardware. In software and firmware embodiments, the logic flow can be implemented by computer-executable instructions stored on at least one non-transitory computer-readable medium or machine-readable medium (e.g., optical, magnetic, or semiconductor storage). The embodiments are not limited to the present disclosure.

FIG7 illustrates an example of a logic flow 700. Logic flow 700 may represent some or all of the operations performed by one or more logic, features, or devices described herein, such as apparatus 600. More specifically, logic flow 700 may be implemented by power offset component 622-1, modulation component 622-2, or transmission component 622-3 of apparatus 600 located on or with an eNB.

In the illustrative example shown in FIG7 , logic flow 700 may transmit power offset information in an RRC IE to a UE on an eNB capable of operating in accordance with one or more 3GPP LTE standards, including LTE-A, for serving a PDSCH and/or coordinating power offset information for scheduling a PDSCH, at block 702. In some examples, the RRC IE may be transmitted by or caused to be transmitted by power offset component 622-1.

According to some examples, logic flow 700 may transmit DCI indicating modulation information for serving PDSCH in block 704. For these examples, the DCI may be transmitted or caused to be transmitted by modulation component 622-2.

In some examples, at block 706, logic flow 700 can cause data to be transmitted to the UE via the serving PDSCH using the same time and frequency resources as used for the coordinated scheduled PDSCH. For one or more resource blocks (RBs), the UE can determine a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH based on power offset or modulation information. For these examples, transmit component 622-3 can cause the data to be transmitted.

Figure 8 illustrates an embodiment of a storage medium 800. The storage medium 800 may include an article of manufacture. In some examples, the storage medium 800 may include any non-transitory computer-readable medium or machine-readable medium, such as optical, magnetic, or semiconductor storage. The storage medium 800 may store various types of computer-executable instructions, such as instructions for implementing the logic flow 700. Examples of computer-readable or machine-readable storage media may include any tangible medium capable of storing electronic data, including volatile or non-volatile memory, removable or non-removable memory, erasable or non-erasable memory, writable or rewritable memory, and the like. Examples of computer-executable instructions may include any suitable type of code, such as source code, compiled code, interpreted code, executable code, static code, dynamic code, object-oriented code, visual code, and the like. Examples are not limited to the present content.

FIG9 shows a block diagram of an exemplary second apparatus. As shown in FIG9 , the exemplary second apparatus includes apparatus 900. Although apparatus 900 is shown in FIG9 as having a limited number of elements in a certain topology, it will be appreciated that apparatus 900 may include more or fewer elements in alternative topologies as desired for a given implementation.

The apparatus 900 may include a computer-implemented apparatus 900 having a processor circuit 920 arranged to execute one or more software components 922-a. It is noteworthy that "a," "b," "c," and similar designators used herein are intended to be variables representing any positive integer. Thus, for example, if an embodiment sets a value of a=4, then the complete set of software components 922-a may include components 922-1, 922-2, 922-3, or 922-4. Examples are not limiting.

According to some examples, apparatus 900 may be implemented in a UE (eg, UE 110 or 120) capable of operating in accordance with one or more 3GPP LTE specifications, including LTE-A. Examples are not limited in this context.

In some examples, as shown in FIG9 , apparatus 900 includes processor circuitry 920. Processor circuitry 920 can generally be configured to execute one or more software components 922-a. Processing circuitry 920 can be any of a variety of commercially available processors, including but not limited to the processors described above for apparatus 600. Furthermore, according to some examples, processor circuitry 920 can also be an ASIC, and at least some components 922-a can be implemented as hardware elements of the ASIC.

According to some examples, the apparatus 900 may include a power offset component 922-1. The power offset component 922-1 may be executed by the processor circuit 920 to receive power offset information for a serving PDSCH and/or a coordinated scheduling PDSCH in an RRC IE. For these examples, the power offset information may be included in a PDSCH-Config IE 930 (e.g., in the exemplary format of the PDSCH-Config IE 300). The power offset component 922-1 may store the serving power offset information 924-a and the coordinated scheduling power offset information 924-b in a data structure, such as a LUT. The serving power offset information 924-a may include a serving PDSCH power offset value, and the coordinated scheduling power offset information 924-b may include a coordinated scheduling PDSCH power offset value received via the PDSCH-Config IE 930.

In some examples, apparatus 900 may further include a modulation component 922-2. Modulation component 922-2 may be executed by processor circuit 920 to receive DCI indicating modulation information for a serving PDSCH. For these examples, the received DCI including modulation information for the serving PDSCH may be DCI 940. Furthermore, for these examples, modulation component 922-2 may store serving modulation information 924-c and coordinated scheduling modulation information 924-d in a data structure, such as a LUT. Serving modulation information 924-c may include modulation order information for the serving PDSCH indicated in DCI 940. Coordinated scheduling modulation information 924-d may include modulation order information for the coordinated scheduling PDSCH detected by the UE from the received PDSCH.

According to some examples, apparatus 900 may further include a detection component 922-3. Detection component 922-3 may be executed by processor circuit 920 to determine, for one or more RBs, a first detected power offset value for a serving PDSCH and a second detected power offset value for a coordinated scheduling PDSCH based on power offset or modulation information. For these examples, detection component 922-3 may store detected serving power offset 924-e, detected coordinated scheduling power offset 924-f, and power offset table 924-g in one or more data structures including, but not limited to, one or more LUTs.

In some examples, apparatus 900 may further include a demodulation component 922-4. Demodulation component 922-4 may be executed by processor circuit 920 to demodulate the serving PDSCH based on the first and second detected power offset values. For these examples, demodulation component 922-4 may have access to detected serving power offset 924-e, detected coordinated scheduling power offset 924-f, or power offset table 924-g. Demodulation component 924-4 may use at least some of this information to demodulate the serving PDSCH from the multiplexed PDSCH 950 and suppress the coordinated scheduling PDSCH to reduce or eliminate interference caused by the coordinated scheduling PDSCH transmitted by the eNB using the same time and frequency resources as the serving PDSCH.

The various components of apparatus 900 and the devices implementing apparatus 900 can be communicatively coupled to each other via various types of communication media to coordinate operations. This coordination may involve a one-way or two-way exchange of information. For example, the components may transmit information in the form of signals transmitted via the communication media. The information may be implemented as signals distributed to various signal lines. In such a distribution, each message is a signal. However, other embodiments may alternatively employ data messages. Such data messages can be sent via various connections. Exemplary connections include parallel interfaces, serial interfaces, and bus interfaces.

FIG10 illustrates an example of a logic flow 1000. The logic flow 1000 may represent some or all of the operations performed by one or more logic, features, or devices described herein, such as the apparatus 900. More specifically, the logic flow 1000 may be implemented by the power offset component 922-1, the modulation component 922-2, the detection component 922-3, or the demodulation component 922-4 of the apparatus 900 located on or co-located with a UE.

In the illustrative example shown in FIG10 , logic flow 1000 may receive power offset information for serving PDSCH and/or coordinating scheduling of PDSCH in an RRC IE at a UE capable of operating in accordance with one or more 3GPP LTE standards, including LTE-A, at block 1002. For these examples, power offset component 922-1 may receive the RRC IE.

According to some examples, logic flow 1000 may receive DCI indicating modulation information for serving PDSCH in block 1004. For these examples, modulation component 922-2 may determine the DCI.

In some examples, logic flow 1000 can determine, for one or more RBs, a first detection power offset value for a serving PDSCH and a second detection power offset value for a coordinated scheduling PDSCH based on power offset or modulation information at block 1006. For these examples, detection component 922-3 can determine the first and second power offset values.

According to some examples, logic flow 1000 may demodulate the serving PDSCH based on the first and second detection power offset values at block 1008. For these examples, demodulation component 922-4 may demodulate the serving PDSCH.

Figure 11 illustrates an embodiment of a storage medium 1100. The storage medium 1100 may include an article of manufacture. In some examples, the storage medium 1100 may include any non-transitory computer-readable medium or machine-readable medium, such as optical, magnetic, or semiconductor storage. The storage medium 1100 may store various types of computer-executable instructions, such as instructions for implementing the logic flow 1000. Examples of computer-readable or machine-readable storage media may include any tangible medium capable of storing electronic data, including volatile or non-volatile memory, removable or non-removable memory, erasable or non-erasable memory, writable or rewritable memory, and the like. Examples of computer-executable instructions may include any suitable type of code, such as source code, compiled code, interpreted code, executable code, static code, dynamic code, object-oriented code, visual code, and the like. Examples are not limited to the present content.

FIG12 illustrates an embodiment of a device 1200 for use in a broadband wireless access network. Device 1200 may implement, for example, apparatus 600/900, storage medium 800/1100, and/or logic circuitry 1270. Logic circuitry 1270 may include physical circuitry for implementing the operations described for apparatus 600/900. As shown in FIG12 , device 1200 may include a radio interface 1210, baseband circuitry 1220, and a computing platform 1230, although the example is not limited to this configuration.

The device 1200 may implement some or all of the structure and/or operations for the apparatus 600/900, storage medium 800/1100, and/or logic circuitry 1270 in a single computing entity (e.g., entirely within a single device). Alternatively, the device 1200 may distribute portions of the structure and/or operations of the apparatus 600/900, storage medium 800/1100, and/or logic circuitry 1270 across multiple computing entities using a distributed system architecture (e.g., a client-server architecture, a 3-tier architecture, an N-tier architecture, a tightly coupled or clustered architecture, a peer-to-peer architecture, a master-slave architecture, a shared database architecture, and other types of distributed systems). The embodiments are not limited in this context.

In one embodiment, the radio interface 1210 may include a component or combination of components suitable for transmitting and/or receiving single-carrier or multi-carrier modulated signals (e.g., including complementary code keying (CCK) and/or orthogonal frequency division multiplexing (OFDM) symbols and/or single-carrier frequency division multiple access (SC-FDM) symbols), but embodiments are not limited to any particular air interface or modulation scheme. The radio interface 1210 may include, for example, a receiver 1212, a transmitter 1216, and/or a frequency synthesizer 1214. The radio interface 1210 may include a bias control, a crystal oscillator, and/or one or more antennas 1218-f. In another embodiment, the radio interface 1210 may use an external voltage-controlled oscillator (VCO), a surface acoustic wave filter, an intermediate frequency (IF) filter, and/or an RF filter, as desired. Due to the variety of potential RF interface designs, an extended description thereof is omitted.

The baseband circuitry 1220 can communicate with the radio interface 1210 to process receive and/or transmit signals and can include, for example, an analog-to-digital converter 1222 for down-converting received signals and a digital-to-analog converter 1224 for up-converting signals for transmission. Furthermore, the baseband circuitry 1220 can include baseband or physical layer (PHY) processing circuitry 1226 for PHY link layer processing of various receive/transmit signals. The baseband circuitry 1220 can include, for example, processing circuitry 1228 for media access control (MAC)/data link layer processing. The baseband circuitry 1220 can include a memory controller 1232 for communicating with the MAC processing circuitry 1228 and/or the computing platform 1230, for example, via one or more interfaces 1234.

In some embodiments, PHY processing circuitry 1226 may include a frame construction and/or detection module, combined with additional circuitry (e.g., buffer memory) to construct and/or deconstruct communication frames (e.g., including subframes). Alternatively or additionally, MAC processing circuitry 1228 may share processing for some of these functions or perform these processes independently of PHY processing circuitry 1226. In some embodiments, MAC and PHY processing may be integrated into a single circuit.

The computing platform 1230 can provide computing functionality for the device 1200. As shown, the computing platform 1230 can include a processing component 1240. In addition to or instead of this, the baseband circuit 1220 of the device 1200 can use the processing component 1240 to perform processing operations or logic for the apparatus 600/900, the storage medium 800/1100, and the logic circuit 1270. The processing component 1240 (and/or the PHY 1226 and/or the MAC 1228) can include various hardware elements, software elements, or a combination of both. Examples of hardware elements can include devices, logic devices, components, processors, microprocessors, circuits, processor circuits (e.g., processor circuits 620 or 920), circuit elements (e.g., transistors, resistors, capacitors, inductors, etc.), integrated circuits, application specific integrated circuits (ASICs), programmable logic devices (PLDs), digital signal processors (DSPs), field programmable gate arrays (FPGAs), memory cells, logic gates, registers, semiconductor devices, chips, microchips, chipsets, etc. Examples of software elements may include software components, programs, applications, computer programs, application programs, system programs, software development programs, machine programs, operating system software, middleware, firmware, software modules, routines, subroutines, functions, methods, processes, software interfaces, application program interfaces (APIs), instruction sets, computing codes, computer codes, code segments, computer code segments, words, values, symbols, or any combination thereof. Determining whether to implement an example using hardware elements and/or software elements can vary according to any number of factors (e.g., desired computing rates, power levels, thermal tolerances, processing cycle budgets, input data rates, output data rates, memory resources, data bus speeds, and other design or performance constraints) as desired for a given example.

Computing platform 1230 may also include other platform components 1250. Other platform components 1250 include common computing elements, such as one or more processors, multi-core processors, coprocessors, memory units, chipsets, controllers, peripherals, interfaces, oscillators, timing devices, video cards, audio cards, multimedia input/output (I/O) components (e.g., digital displays), power supplies, etc. Examples of memory cells include, but are not limited to, various types of computer-readable and machine-readable storage media in the form of one or more higher-speed memory cells, such as read-only memory (ROM), random-access memory (RAM), dynamic RAM (DRAM), double-data-rate DRAM (DDRAM), synchronous DRAM (SDRAM), static RAM (SRAM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, polymer memory (e.g., ferroelectric polymer memory, bidirectional memory, phase change or ferroelectric memory, silicon-oxide-nitride-oxide-silicon (SONOS) memory), magnetic or optical cards, device arrays (e.g., redundant array of independent disks (RAID) drives), solid-state memory devices (e.g., USB memory, solid-state drives (SSDs)), and any other type of storage medium suitable for storing information.

Computing platform 1230 may also include a network interface 1260. In some examples, network interface 1260 may include logic and/or features for supporting a wireless network interface, such as described in one or more 3GPP LTE or LTE-A specifications or standards. For these examples, network interface 1260 may enable apparatus 600 or 900 located on the respective eNB and UE to communicate with each other or with other networked devices.

The device 1200 may be, for example, a computer, a personal computer (PC), a desktop computer, a laptop computer, an ultrabook computer, a smartphone, a tablet computer, a notebook computer, a netbook computer, a workstation, a microcomputer, a multiprocessor system, a processor-based system, a wireless access point, or a combination thereof. Thus, the functionality and/or specific configurations of the device 1200 described herein may be included in or omitted from various embodiments of the device 1200, as appropriate desired. In some embodiments, the device 1200 may be configured to be compatible with protocols and frequencies associated with one or more of the 3GPP LTE specifications and/or IEEE 802.16 standards for WMAN and/or other broadband wireless networks referenced herein, but examples are not limited thereto.

Embodiments of the device 1200 may be implemented using a single-input, single-output (SISO) architecture. However, some embodiments may include multiple antennas (e.g., antennas 1218-f) for transmitting and/or receiving using adaptive antenna techniques for beamforming or spatial division multiple access (SDMA) and/or using multiple-input, multiple-output (MIMO) communication techniques.

The components and features of device 1200 may be implemented using any combination of discrete circuits, application specific integrated circuits (ASICs), logic gates, and/or single-chip architectures. Additionally, features of device 1200 may be implemented using microcontrollers, programmable logic arrays, and/or microprocessors, or any combination of the foregoing, where appropriate. Note that hardware elements, firmware elements, and/or software elements may be collectively or individually referred to herein as "logic" or "circuitry."

It should be understood that the exemplary device 1200 shown in the block diagram of Figure 12 may represent a functionally descriptive example of many potential implementations. Therefore, the division, omission, or inclusion of block functions depicted in the figures does not infer that hardware components, circuits, software, and/or elements for implementing these functions must be divided, omitted, or included in the examples.

FIG13 illustrates an exemplary UE device 1300. The examples described herein may be implemented as a system using any appropriately configured hardware and/or software. FIG13 illustrates example components of a UE device 1300. In some embodiments, the UE device 1300 may include application circuitry 1302, baseband circuitry 1304, radio frequency (RF) circuitry 1306, front-end module (FEM) circuitry 1308, and one or more antennas 1310, coupled together at least as shown.

Application circuitry 1302 may include one or more application processors. For example, application circuitry 1302 may include circuitry such as, but not limited to, one or more single-core processors or multi-core processors. The processors may include any combination of general-purpose processors and specialized processors (e.g., graphics processors, application processors, etc.). The processors may be coupled to and/or include memory/storage devices and may be configured to execute instructions stored in the memory/storage devices to enable various applications and/or operating systems to run on the system.

The baseband circuitry 1304 may include circuitry such as, but not limited to, one or more single-core processors or multi-core processors. The baseband circuitry 1304 may include one or more baseband processors and/or control logic to process baseband signals received from the receive signal path of the RF circuitry 1306 and generate baseband signals for the transmit signal path of the RF circuitry 1306. The baseband processing circuitry 1304 may interface with the application circuitry 1302 to generate and process baseband signals and control the operation of the RF circuitry 1306. For example, in some embodiments, the baseband circuitry 1304 may include a second-generation (2G) baseband processor 1304a, a third-generation (3G) baseband processor 1304b, a fourth-generation (4G) baseband processor 1304c, and/or other baseband processors 1304d for other current, developing, or future generations (e.g., fifth-generation (5G), 6G, etc.). Baseband circuitry 1304 (e.g., one or more of baseband processors 1304a-d) may handle various radio control functions that enable communication with one or more radio networks via RF circuitry 1306. Radio control functions may include, but are not limited to, signal modulation/demodulation, encoding/decoding, radio frequency shifting, and the like. In some embodiments, the modulation/demodulation circuitry of baseband circuitry 1304 may include fast Fourier transform (FFT), precoding, and/or constellation mapping/demapping functions. In some embodiments, the encoding/decoding circuitry of baseband circuitry 1304 may include convolution, tail-biting, turbo, Viterbi, and/or low-density parity check (LDPC) encoder/decoder functions. Embodiments of the modulation/demodulation and encoder/decoder functions are not limited to these examples and may include other suitable functions in other embodiments.

In some embodiments, the baseband circuitry 1304 may include elements of a protocol stack (e.g., elements of the Evolved Universal Terrestrial Radio Access Network (EUTRAN) protocol, including, for example, physical (PHY) elements, medium access control (MAC) elements, radio link control (RLC) elements, packet data convergence protocol (PDCP) elements, and/or radio resource control (RRC) elements). The central processing unit (CPU) 1304e of the baseband circuitry 1304 may be configured to execute elements of the protocol stack for signaling at the PHY, MAC, RLC, PDCP, and/or RRC layers. In some embodiments, the baseband circuitry may include one or more audio digital signal processors (DSPs) 1304f. The audio DSPs 1304f may include elements for compression/decompression and echo cancellation, and in other embodiments may include other suitable processing elements. In some embodiments, the components of the baseband circuitry may be suitably combined in a single chip, a single chipset, or deployed on the same circuit board. In some embodiments, some or all of the components of the baseband circuitry 1304 and the application circuitry 1302 may be implemented together, for example, on a system on a chip (SOC).

In some embodiments, baseband circuitry 1304 can provide communications compatible with one or more radio technologies. For example, in some embodiments, baseband circuitry 1304 can support communications with the Evolved Universal Terrestrial Radio Access Network (EUTRAN) and/or other wireless metropolitan area networks (WMANs), wireless local area networks (WLANs), and wireless personal area networks (WPANs). Embodiments in which baseband circuitry 1304 is configured to support radio communications using more than one wireless protocol may be referred to as multimode baseband circuitry.

RF circuitry 1306 can enable communication with a wireless network using modulated electromagnetic radiation over a non-solid medium. In various embodiments, RF circuitry 1306 can include switches, filters, amplifiers, and the like to facilitate communication with the wireless network. RF circuitry 1306 can include a receive signal path, which can include circuitry for downconverting RF signals received from FEM circuitry 1308 and providing a baseband signal to baseband circuitry 1304. RF circuitry 1306 can also include a transmit signal path, which can include circuitry for upconverting baseband signals provided by baseband circuitry 1304 and providing an RF output signal to FEM circuitry 1308 for transmission.

In some embodiments, RF circuitry 1306 may include a receive signal path and a transmit signal path. The receive signal path of RF circuitry 1306 may include a mixer circuit 1306a, an amplifier circuit 1306b, and a filter circuit 1306c. The transmit signal path of RF circuitry 1306 may include a filter circuit 1306c and mixer circuit 1306a. RF circuitry 1306 may also include a synthesizer circuit 1306d for synthesizing frequencies used by mixer circuitry 1306a in the receive and transmit signal paths. In some embodiments, mixer circuitry 1306a in the receive signal path may be configured to downconvert an RF signal received from FEM circuitry 1308 based on the synthesized frequency provided by synthesizer circuitry 1306d. Amplifier circuitry 1306b may be configured to amplify the downconverted signal, and filter circuitry 1306c may be a low-pass filter (LPF) or a band-pass filter (BPF) configured to remove unwanted signals from the downconverted signal to generate an output baseband signal. The output baseband signal can be provided to baseband circuitry 1304 for further processing. In some embodiments, the output baseband signal can be a zero-frequency baseband signal, but this is not a requirement. In some embodiments, mixer circuitry 1306a of the receive signal path can include a passive mixer, but the scope of the embodiments is not limited in this regard.

In some embodiments, mixer circuit 1306a of the transmit signal path can be configured to upconvert an input baseband signal based on a synthesized frequency provided by synthesizer circuit 1306d to generate an RF output signal for FEM circuit 1308. The baseband signal can be provided by baseband circuit 1304 and can be filtered by filter circuit 1306c. Filter circuit 1306c can include a low-pass filter (LPF), but the scope of the embodiments is not limited in this regard.

In some embodiments, the mixer circuit 1306a of the receive signal path and the mixer circuit 1306a of the transmit signal path may include two or more mixers and may be arranged for quadrature down-conversion and/or up-conversion, respectively. In some embodiments, the mixer circuit 1306a of the receive signal path and the mixer circuit 1306a of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection). In some embodiments, the mixer circuit 1306a of the receive signal path and the mixer circuit 1306a of the transmit signal path may be arranged for direct down-conversion and/or direct up-conversion, respectively. In some embodiments, the mixer circuit 1306a of the receive signal path and the mixer circuit 1306a of the transmit signal path may be configured for superheterodyne operation.

In some embodiments, the output baseband signal and the input baseband signal may be analog baseband signals, but the scope of the embodiments is not limited in this regard. In some alternative embodiments, the output baseband signal and the input baseband signal may be digital baseband signals. In these alternative embodiments, RF circuitry 1306 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry, and baseband circuitry 1304 may include a digital baseband interface to communicate with RF circuitry 1306.

In some dual-mode embodiments, separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the embodiments is not limited in this regard.

In some embodiments, synthesizer circuit 1306 d may be a fractional-N synthesizer or a fractional-N/N+1 synthesizer, but the scope of the embodiments is not limited in this regard, as other types of frequency synthesizers may be suitable. For example, synthesizer circuit 1306 d may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer including a phase-locked loop with a frequency divider.

Synthesizer circuit 1306d may be configured to synthesize, based on the frequency input and the divider control input, an output frequency used by mixer circuit 1306a of RF circuit 1306. In some embodiments, synthesizer circuit 1306d may be a fractional-N/N+1 synthesizer.

In some embodiments, the frequency input can be provided by a voltage-controlled oscillator (VCO), but this is not required. Depending on the desired output frequency, the divider control input can be provided by baseband circuitry 1304 or application processor 1302. In some embodiments, the divider control input (e.g., N) can be determined from a lookup table based on the channel indicated by application processor 1302.

The synthesizer circuit 1306d of the RF circuit 1306 may include a divider, a delay-locked loop (DLL), a multiplexer, and a phase accumulator. In some embodiments, the divider may be a dual-modulus divider (DMD), and the phase accumulator may be a digital phase accumulator (DPA). In some embodiments, the DMD may be configured to divide the input signal by N or N+1 (e.g., based on a carry) to provide a fractional division ratio. In some example embodiments, the DLL may include a set of cascaded tunable delay elements, a phase detector, a charge pump, and a D-type flip-flop. In these embodiments, the delay elements may be configured to decompose a VCO cycle into Nd equal phase groups, where Nd is the number of delay elements in the delay line. In this manner, the DLL provides negative feedback to help ensure that the total delay through the delay line is one VCO cycle.

In some embodiments, synthesizer circuit 1306d can be configured to generate a carrier frequency as an output frequency, while in other embodiments, the output frequency can be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency), and used in conjunction with a quadrature generator and divider circuit to generate multiple signals at the carrier frequency with multiple different phases relative to each other. In some embodiments, the output frequency can be the LO frequency (fLO). In some embodiments, RF circuit 1306 can include an IQ/polarity converter.

FEM circuitry 1308 may include a receive signal path, which may include circuitry configured to operate on RF signals received from one or more antennas 1310, amplify the received signals, and provide the amplified versions of the received signals to RF circuitry 1306 for further processing. FEM circuitry 1308 may also include a transmit signal path, which may include circuitry configured to amplify transmit signals provided by RF circuitry 1306 for transmission by one or more of one or more antennas 1310.

In some embodiments, the FEM circuitry 1308 may include a TX/RX switch to switch between transmit and receive modes of operation. The FEM circuitry may include a receive signal path and a transmit signal path. The receive signal path of the FEM circuitry may include a low-noise amplifier (LNA) to amplify a received RF signal and provide the amplified received RF signal as an output (e.g., to the RF circuitry 1306). The transmit signal path of the FEM circuitry 1308 may include a power amplifier (PA) to amplify an input RF signal (e.g., provided by the RF circuitry 1306) and one or more filters to generate an RF signal for subsequent transmission (e.g., by one or more of the one or more antennas 1310).

In some embodiments, the UE device 1300 may include additional elements, such as memory/storage, a display, a camera, sensors, and/or input/output (I/O) interfaces.

FIG14 illustrates an embodiment of a broadband wireless access system 1400. As shown in FIG14 , the broadband wireless access system 1400 may be an Internet Protocol (IP)-based network, such as an Internet 1410-based network capable of supporting mobile wireless access and/or fixed wireless access to the Internet 1410. In one or more embodiments, the broadband wireless access system 1400 may include any type of orthogonal frequency division multiple access (OFDMA) and/or multiple single-carrier frequency division multiple access (multi-SC-FDMA)-based wireless network, such as a system compliant with one or more of the 3GPP LTE specifications and/or the IEEE 802.16 standard, and the scope of the present invention is not limited thereto.

In an exemplary broadband wireless access system 1400, access service networks (ASNs) 1412 and 1418 can be coupled to base stations (BSs) 1414 and 1420 (RRHs or eNBs), respectively, to provide wireless communications between one or more fixed devices 1416 and the Internet 1410 or one or more mobile devices 1422 and the Internet 1410. An example of a fixed device 1416 and a mobile device 1422 can be a UE, such as UE 110 shown in FIG. 1 , with the fixed device 1416 comprising a fixed version of the UE 110 and the mobile device 1422 comprising a mobile version of the UE 110. The ASN 1412 can implement a configuration file that defines a mapping of network functions to one or more physical entities on the broadband wireless access system 1400. Base stations 1414, 1420 (or eNBs) may include radio equipment for providing RF communications with fixed devices 1416 and mobile devices 1422, such as described with reference to device 1400, and may include, for example, PHY, MAC, RLC, or PDCP layer equipment compliant with the 3GPP LTE specification or the IEEE 802.16 standard. Base stations 1414, 1420 (or eNBs) may also include an IP backplane to couple to the Internet 1410 via ASNs 1412, 1418, respectively, although the scope of the claimed subject matter is not limited in this respect.

The broadband wireless access system 1400 may also include a visitor connection service network (CSN) 1424 that can provide one or more network functions including, but not limited to, proxy and/or relay type functions (e.g., authentication, authorization, and accounting (AAA) functions), dynamic host configuration protocol (DHCP) functions or domain name service control, domain gateways such as public switched telephone network (PSTN) gateways or voice over Internet protocol (VoIP) gateways, and/or Internet Protocol (IP) type server functions. However, these are merely examples of the types of functions that can be provided by the visitor CSN 1424 or the home CSN 1426, and the scope of the claimed subject matter is not limited in this respect. In the case where the visited CSN 1424 is not part of the regular service provider of the fixed device 1416 or mobile device 1422, such as when the fixed device 1416 or mobile device 1422 is roaming away from its corresponding home CSN 1426, or when the broadband wireless access system 1400 is part of the regular service provider of the fixed device 1416 or mobile device 1422, but the broadband wireless access system 1400 may be in another location or state that is not the home location or home location of the fixed device 1416 or mobile device 1422, the visited CSN 1424 can be referred to as a visited CSN.

Fixed device 1416 can be located anywhere within the range of one or both base stations 1414, 1420 (e.g., within or near a home or business) to provide broadband access to the Internet 1410 to the home or business customer via base stations 1414, 1420 and ASNs 1412, 1418, and home CSN 1426, respectively. It should be noted that while fixed device 1416 is typically located at a fixed location, it can be moved to different locations as needed. For example, if mobile device 1422 is within the range of one or both base stations 1414, 1420, mobile device 1422 can be used at one or more locations.

According to one or more embodiments, an operations support system (OSS) 1428 may be part of the broadband wireless access system 1400 to provide management functions for the broadband wireless access system 1400 and to provide interfaces between functional entities of the broadband wireless access system 1400. The broadband wireless access system 1400 of FIG14 is merely one type of wireless network illustrating a certain number of components of the broadband wireless access system 1400, and the scope of the claimed subject matter is not limited in this respect.

Some examples may be described using the expression "in one example" or "example" and their derivatives. These words mean that a particular feature, structure, or characteristic described in connection with the example is included in at least one example. The appearances of the phrase "in one example" in various places in the specification are not necessarily all referring to the same example.

Some examples may be described using the expressions "coupled," "connected," or "capable of being coupled," and their derivatives. These words are not necessarily intended as synonyms for each other. For example, descriptions using the words "connected" and/or "coupled" may indicate that two or more elements are in direct physical or electrical contact with each other. However, the word "coupled" may also mean that two or more elements are not in direct contact with each other, but still cooperate or interact with each other.

The following embodiments relate to additional examples of the technology disclosed herein.

Example 1. An example apparatus may include logic, at least a portion of which is located in hardware, the logic being located at a UE capable of operating in accordance with one or more 3GPP LTE standards, including LTE-A. For these examples, the logic may receive power offset information in an RRC IE for a serving PDSCH and/or a coordinated scheduled PDSCH. The logic may also receive downlink control information indicating modulation information for the serving PDSCH. The logic may also determine, for one or more RBs, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH based on the power offset information or the modulation information.

Example 2. The apparatus of Example 1, wherein the logic may further demodulate the serving PDSCH based on the first detection power offset value.

Example 3. The apparatus of Example 2, wherein the logic demodulating the serving PDSCH may include the logic suppressing the coordinated scheduling PDSCH based on the second detected power offset value to reduce interference caused by the coordinated scheduling PDSCH transmitted by the eNB using the same time and frequency resources as the serving PDSCH.

Example 4. The apparatus of Example 1, wherein the logic may determine first and second detection power offset values based on the power offset information. For these examples, the determination may further include: the power offset information indicating a first indicated power offset subset for the serving PDSCH, comprising a first ratio of serving PDSCH and coordinated scheduling PDSCH EPRE to CRS, a second ratio of serving PDSCH and coordinated scheduling PDSCH EPRE to UE-RS EPRE, or a third ratio of serving PDSCH and coordinated scheduling PDSCH EPRE to total PDSCH EPRE. The logic may then determine the first and second detection power offset values based on the first ratio, the second ratio, or the third ratio.

Example 5. The apparatus of Example 4, wherein the logic may determine the first and second detection power offset values based on both power offset information and modulation information for a serving PDSCH. The modulation information may indicate a first modulation order for the serving PDSCH, the first ratio, the second ratio, or the third ratio being based on the first modulation order.

Example 6. The apparatus of Example 1, wherein the logic may determine first and second detection power offset values based on the power offset information. For these examples, the determining may further include: the power offset information indicating one of at least two power offset values including a first value of 0 dB and a second value represented by “Pa,” where Pa is in accordance with the first 3GPP TS including TS 36.213.

Example 7. According to the apparatus of Example 6, the first value of 0 dB may indicate no expected interference from the coordinated scheduled PDSCH. The second value represented by Pa may indicate expected interference from the coordinated scheduled PDSCH.

Example 8. According to the apparatus of Example 1, the logic may determine the first and second detection power offset values based on modulation information. The modulation information may indicate a first modulation order for the serving PDSCH. For these examples, the logic may detect a composite constellation of a multiplexed PDSCH including the serving PDSCH and the coordinated scheduling PDSCH. The logic may further determine a second modulation order for the coordinated scheduling PDSCH based on the composite constellation and the first modulation order. The logic may further match the first dispatch power offset value to the serving PDSCH and match the second dispatch power offset value to the coordinated scheduling PDSCH based on both the indicated first modulation order and the determined second modulation order.

Example 9. The apparatus according to Example 1 may further include a digital display coupled to the processor circuit to present a user interface view.

Example 10. An example method may include, at a UE capable of operating in accordance with one or more 3GPP LTE standards including LTE-A, receiving power offset information in an RRC IE for a serving PDSCH and/or a coordinated scheduled PDSCH. The method may also include receiving downlink control information indicating modulation information for the serving PDSCH. The method may also include determining, for one or more RBs, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH based on the power offset information or the modulation information.

Example 11. The method according to Example 10 may further include demodulating the serving PDSCH based on the first detection power offset value.

Example 12. The method of Example 11, demodulating the serving PDSCH may include suppressing the coordinated scheduling PDSCH based on the second detection power offset value to reduce interference caused by the coordinated scheduling PDSCH transmitted by the eNB using the same time and frequency resources as used by the serving PDSCH.

Example 13. According to the method of Example 10, determining the first and second detection power offset values may be based on power offset information. The determining may further include: the power offset information indicating a first indicated power offset subset for the serving PDSCH, which indicates a first ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the CRS, a second ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the UE-RS EPRE, or a third ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the total PDSCH EPRE. For these examples, determining the first and second detection power offset values may be based on the first ratio, the second ratio, or the third ratio.

Example 14. According to the method of Example 13, determining the first and second detection power offset values can be based on both power offset information and modulation information for the serving PDSCH. The modulation information can indicate a first modulation order for the serving PDSCH, and the first ratio, the second ratio, or the third ratio is based on the first modulation order.

Example 15. According to the method of Example 10, determining the first and second detection power offset values may be based on power offset information. The determination may further include: power offset information indicating one of at least two power offset values including a first value of 0 dB and a second value represented by "Pa", wherein Pa includes TS 36.213 according to the first 3GPP TS.

Example 16. According to the method of Example 15, the first value of 0 dB may indicate no expected interference from the coordinated scheduled PDSCH. The second value represented by Pa may indicate expected interference from the coordinated scheduled PDSCH.

Example 17. According to the method of Example 10, determining the first and second detection power offset values may be based on modulation information. The determination may also include modulation information indicating a first modulation order for a serving PDSCH. The determination may also include detecting a composite constellation of a multiplexed PDSCH including the serving PDSCH and a coordinated scheduling PDSCH. The determination may also include determining a second modulation order for the coordinated scheduling PDSCH based on the composite constellation and the first modulation order, and matching the first dispatch power offset value to the serving PDSCH and matching the second dispatch power offset value to the coordinated scheduling PDSCH based on both the indicated first modulation order and the determined second modulation order.

Example 18. Example at least one machine-readable medium may include a plurality of instructions that, in response to being executed on a system on a UE, may cause the system to perform a method according to any one of Examples 10 to 17.

Example 19. An example apparatus may include means for implementing the method of any of Examples 11-17.

Example 20. At least one machine-readable medium may include a plurality of instructions that, in response to being executed on a system of a UE capable of operating in accordance with one or more 3GPP LTE standards, including LTE-A, may cause the system to receive power offset information in an RRC IE for a serving PDSCH and/or a coordinated scheduled PDSCH. The instructions may also cause the system to receive downlink control information indicating modulation information for the serving PDSCH. The instructions may also cause the system to determine, for one or more RBs, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH based on the power offset information or the modulation information.

Example 21. According to the at least one machine-readable medium of Example 20, the instructions may cause the system to demodulate the serving PDSCH based on the first and second detected power offset values.

Example 22. According to the at least one machine-readable medium of Example 21, the system demodulating the serving PDSCH comprises: instructions causing the system to suppress the coordinated scheduling PDSCH based on the second detection power offset value to reduce interference caused by the coordinated scheduling PDSCH transmitted by the eNB using the same time and frequency resources as used by the serving PDSCH.

Example 23. According to at least one machine-readable medium of Example 20, the instructions may cause the system to determine first and second detection power offset values based on the power offset information. For these examples, the determination may further include: power offset information indicating a first indicated power offset subset for the serving PDSCH, which includes a first ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the CRS. The determination may also include a second ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the UE-RS EPRE or a third ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the total PDSCH EPRE. The instructions may then cause the system to determine the first and second detection power offset values based on the first ratio, the second ratio, or the third ratio.

Example 24. According to the at least one machine-readable medium of Example 23, the instructions may cause the system to determine the first and second detection power offset values based on both power offset information and modulation information for the serving PDSCH. The modulation information may indicate a first modulation order for the serving PDSCH, and the first ratio, the second ratio, or the third ratio is based on the first modulation order.

Example 25. The apparatus of Example 20, wherein the instructions may cause the system to determine first and second detection power offset values based on the power offset information. The determination may further include: the power offset information indicating one of at least two power offset values including a first value of 0 dB and a second value represented by "Pa", wherein Pa is in accordance with the first 3GPP TS including TS 36.213.

Example 26. The at least one machine-readable medium of Example 25, wherein the first value of 0 dB may indicate no expected interference from the coordinated scheduled PDSCH. The second value represented by Pa may indicate expected interference from the coordinated scheduled PDSCH.

Example 27. According to the at least one machine-readable medium of Example 20, the instructions may cause the system to determine first and second detection power offset values based on modulation information. The modulation information may indicate a first modulation order for a serving PDSCH. The instructions may further cause the system to detect a composite constellation of a multiplexed PDSCH including the serving PDSCH and the coordinated scheduling PDSCH. The instructions may further cause the system to determine a second modulation order for the coordinated scheduling PDSCH based on the composite constellation and the first modulation order. The instructions may further cause the system to match the first dispatch power offset value with the serving PDSCH and match the second dispatch power offset value with the coordinated scheduling PDSCH based on both the indicated first modulation order and the determined second modulation order.

Example 28. An example apparatus may include logic, at least a portion of which is located in hardware, the logic being located at an eNB capable of operating in accordance with one or more 3GPP LTE standards, including LTE-A. For these examples, the logic may send power offset information in an RRC IE to the UE. The power offset information may be used for a serving PDSCH and/or a coordinated scheduled PDSCH. The logic may also send downlink control information indicating modulation information for the serving PDSCH. The logic may also cause data to be sent to the UE via the serving PDSCH using the same time and frequency resources as used for the coordinated scheduled PDSCH. For one or more RBs, the UE may determine, based on the power offset information or the modulation information, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH.

Example 29. According to the apparatus of Example 28, the power offset information may indicate a first indicated power offset subset for the serving PDSCH, which includes a first ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the CRS, a second ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the UE-RS EPRE, or a third ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the total PDSCH EPRE, and the UE determines the first and second detection power offset values based on the first ratio, the second ratio, or the third ratio.

Example 30. According to the apparatus of Example 29, the modulation information may indicate a first modulation order for the serving PDSCH. The UE may determine the first and second detection power offset values based on both the power offset information for the serving PDSCH and the modulation information. The first ratio, the second ratio, or the third ratio is based on the first modulation order.

Example 31. According to the apparatus of Example 28, the UE may determine the first and second detection power offset values based on the power offset information. The power offset information may indicate one of at least two power offset values including a first value of 0 dB and a second value represented by "Pa", wherein Pa includes TS 36.213 according to the first 3GPP TS.

Example 32. According to the apparatus of Example 31, the first value of 0 dB may indicate no expected interference from the coordinated scheduled PDSCH. The second value represented by Pa may indicate expected interference from the coordinated scheduled PDSCH.

Example 33. The apparatus according to Example 28 may further comprise a digital display coupled to the processor circuit to present the user interface view.

Example 34. An exemplary method may include, at an eNB capable of operating in accordance with one or more 3GPP LTE standards including LTE-A, sending power offset information in an RRC IE to a UE. The power offset information may be used for a serving PDSCH and/or a coordinated scheduled PDSCH. The method may further include sending downlink control information indicating modulation information for the serving PDSCH. The method may further include sending data to the UE via the serving PDSCH using the same time and frequency resources as used for the coordinated scheduled PDSCH. For one or more RBs, the UE may determine, based on the power offset information or the modulation information, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH.

Example 35. According to the method of Example 34, the power offset information may indicate a first indicated power offset subset for the serving PDSCH, which indicates a first ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the CRS, a second ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the UE-RS EPRE, or a third ratio of the serving PDSCH and coordinated scheduling PDSCH EPRE to the total PDSCH EPRE. For these examples, the UE may determine the first and second detection power offset values based on the first ratio, the second ratio, or the third ratio.

Example 36. According to the method of Example 35, the modulation information may indicate a first modulation order for the serving PDSCH. The UE may determine the first and second detection power offset values based on both the power offset information for the serving PDSCH and the modulation information, the first ratio or the second ratio being based on the first modulation order.

Example 37. According to the method of Example 35, the UE may determine the first and second detection power offset values based on the power offset information. The power offset information may indicate one of at least two power offset values including a first value of 0 dB and a second value represented by "Pa", where Pa includes TS 36.213 according to the first 3GPP TS.

Example 38. According to the method of Example 37, the first value of 0 dB may indicate no expected interference from the coordinated scheduled PDSCH. The second value represented by Pa may indicate expected interference from the coordinated scheduled PDSCH.

Example 39. Example at least one machine-readable medium may include a plurality of instructions that, in response to being executed on a system on an eNB, may cause the system to perform a method according to any one of Examples 34 to 38.

Example 40. An example apparatus may include means for implementing the method of any of Examples 34-38.

Example 41. Example at least one machine-readable medium may include a plurality of instructions that, in response to being executed on a system of an eNB capable of operating according to one or more 3GPP LTE standards including LTE-A, cause the system to send power offset information in an RRC IE to a UE. The power offset information may be used for a serving physical downlink shared channel (PDSCH) and/or a coordinated scheduled PDSCH. The instructions may also cause the system to send downlink control information indicating modulation information for the serving PDSCH. The instructions may also cause the system to send data to the UE via the serving PDSCH using the same time and frequency resources as used for the coordinated scheduled PDSCH. For one or more RBs, the UE may determine a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduled PDSCH based on the power offset information or the modulation information.

Example 42. According to the at least one machine-readable medium of Example 41, the power offset information may indicate a first indicated power offset subset for the serving PDSCH, comprising a first ratio of serving PDSCH and coordinated scheduling PDSCH per resource element energy (EPRE) to a cell-specific reference signal (CRS), a second ratio of serving PDSCH and coordinated scheduling PDSCH EPRE to a user-specific reference signal (UE-RS) EPRE, or a third ratio of serving PDSCH and coordinated scheduling PDSCH EPRE to a total PDSCH EPRE. For these examples, the UE may determine the first and second detection power offset values based on the first ratio, the second ratio, or the third ratio.

Example 43. According to the at least one machine-readable medium of Example 42, the modulation information may indicate a first modulation order for the serving PDSCH. The UE may determine the first and second detection power offset values based on both the power offset information for the serving PDSCH and the modulation information. The first ratio, the second ratio, or the third ratio may be based on the first modulation order.

Example 44. According to the at least one machine-readable medium of Example 41, the UE may determine first and second detection power offset values based on power offset information. The power offset information may indicate one of at least two power offset values including a first value of 0 decibels (dB) and a second value represented by "Pa", wherein Pa is in accordance with a first 3GPP technical specification (TS) including TS 36.213.

Example 45. The at least one machine-readable medium of Example 44, wherein the first value of 0 dB may indicate no expected interference from the coordinated scheduled PDSCH. The second value represented by Pa may indicate expected interference from the coordinated scheduled PDSCH.

It should be emphasized that the Abstract of the Disclosure is provided to comply with the requirement of 37 C.F.R. Section 1.72(b) to provide an abstract that allows the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the Examples. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in a single Example in order to simplify the content of the present disclosure.

This approach to the present invention is not to be interpreted as reflecting an intention that the claimed examples require more features than expressly recited in each claim. Rather, as the appended claims reflect, the present subject matter lies in less than all the features of a single disclosed example. Accordingly, the appended claims are incorporated into the detailed description, with each claim standing on its own as a separate example. In the appended claims, the words "including" and "in which" are used as the simplified English equivalents of the corresponding words "comprising" and "wherein," respectively. Moreover, the words "first," "second," "third," etc. are used merely as labels and are not intended to impose numerical requirements on their objects.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims (25)

1. An apparatus for demodulating signals, comprising: Logic, at least a portion of which resides in hardware, at a user equipment (UE) capable of operating according to one or more 3GPP Long Term Evolution (LTE) standards including LTE Advanced (LTE-A), wherein the logic is used for: Receive power offset information in Radio Resource Control (RRC) cells IE used for serving Physical Downlink Shared Channel (PDSCH) and/or Coordinated Scheduling (PSC) PDSCH, wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time and frequency resources to form a multiplexed PDSCH; Receive downlink control information indicating modulation information for the serving PDSCH; and For one or more resource blocks (RBs), based on the power offset information and the modulation information, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH are determined. 2. The apparatus of claim 1, comprising logic for: The service PDSCH is demodulated based on the first detected power offset value. 3. The apparatus of claim 2, wherein the logic demodulates the serving PDSCH, comprising: the logic suppressing the coordinated scheduling PDSCH based on the second detected power offset value to reduce interference caused by the coordinated scheduling PDSCH transmitted by the base station using the same time and frequency resources as those used for the serving PDSCH. 4. The apparatus according to claim 1, wherein the determining further comprises: The power offset information indicates: The first indicated power offset subset of the serving PDSCH includes power parameter values defined as follows: a first ratio of the serving PDSCH energy per resource element (EPRE) to the cell-specific reference signal (CRS), a second ratio of the serving PDSCH EPRE to the user-specific reference signal (UE-RSEPRE), or a third ratio of the serving PDSCH EPRE to the total PDSCH EPRE; and The second indicated power offset subset of the coordinated scheduling PDSCH includes power parameter values defined as follows: a first ratio of the energy per resource element (EPRE) of the coordinated scheduling PDSCH to the cell-specific reference signal (CRS), a second ratio of the coordinated scheduling PDSCH EPRE to the user-specific reference signal (UE-RS) EPRE, or a third ratio of the coordinated scheduling PDSCH EPRE to the total PDSCH EPRE. 5. The apparatus of claim 4, wherein the modulation information indicates a first modulation order for the serving PDSCH, and the first ratio, the second ratio, or the third ratio within the first indicated power offset subset of the serving PDSCH depends on the first modulation order. 6. The apparatus of claim 1, wherein the logic determines the first detected power offset value and the second detected power offset value based on the power offset information, the determination further comprising: The power offset information indication includes at least one of two power offset values, namely a first value of 0 dB and a second value represented by “Pa”, wherein Pa is determined according to TS 36.213 and subsequent versions of the first 3GPP technical specification TS. 7. The apparatus of claim 6, wherein a first value of 0 dB indicates no anticipated interference from the coordinated scheduling PDSCH, and a second value represented by Pa indicates anticipated interference from the coordinated scheduling PDSCH. 8. The apparatus of claim 1, wherein the modulation information indicates a first modulation order for the serving PDSCH, and the logic is used for: The detection includes a composite constellation of multiplexed PDSCHs comprising the serving PDSCH and the coordinated scheduling PDSCH; A second modulation order for the coordinated scheduling PDSCH is determined based on the composite constellation and the first modulation order; and Based on both the indicated first modulation order and the determined second modulation order, the first dispatch power offset value is matched with the serving PDSCH, and the second dispatch power offset value is matched with the coordinated scheduling PDSCH. 9. A method for demodulating a signal, comprising: On a user equipment (UE) capable of operating according to one or more 3GPP Long Term Evolution LTE standards including Long Term Evolution LTE Advanced LTE-A, power offset information is received in Radio Resource Control (RRC) cells IE for serving Physical Downlink Shared Channel (PDSCH) and/or Coordinated Scheduling (PSC) PDSCH, wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time and frequency resources to form a multiplexed PDSCH. Receive downlink control information indicating modulation information for the serving PDSCH; and For one or more resource blocks (RBs), based on the power offset information and the modulation information, a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH are determined. 10. The method of claim 9, comprising: Demodulating the serving PDSCH based on the first detected power offset value includes: suppressing the coordinated scheduling PDSCH based on the second detected power offset value to reduce interference caused by coordinated scheduling PDSCH transmitted by the base station using the same time and frequency resources used for the serving PDSCH. 11. The method according to claim 9, wherein the first detected power offset value and the second detected power offset value are determined based on the power offset information, the determination further comprising: The power offset information indication includes at least one of two power offset values, namely a first value of 0 dB and a second value represented by “Pa”, wherein Pa is determined according to TS 36.213 and subsequent versions of the first 3GPP technical specification TS. 12. The method of claim 11, wherein a first value of 0 dB indicates no expected interference from the coordinated scheduling PDSCH, and a second value represented by Pa indicates expected interference from the coordinated scheduling PDSCH. 13. The method of claim 9, wherein the determination further comprises: The modulation information indicates the first modulation order used for the serving PDSCH; The detection includes a composite constellation of multiplexed PDSCHs comprising the serving PDSCH and the coordinated scheduling PDSCH; A second modulation order for the coordinated scheduling PDSCH is determined based on the composite constellation and the first modulation order; and Based on both the indicated first modulation order and the determined second modulation order, the first dispatch power offset value is matched with the serving PDSCH, and the second dispatch power offset value is matched with the coordinated scheduling PDSCH. 14. A machine-readable medium comprising a plurality of instructions, the plurality of instructions being responsive to execution on a system on a user equipment (UE) to cause the system to perform the method according to any one of claims 9 to 13. 15. An apparatus for demodulating signals, comprising: Logic, at least a portion of which resides in hardware, is located at a base station capable of operating according to one or more 3GPP Long Term Evolution LTE standards, including LTE Advanced LTE-A, wherein the logic is used for: The power offset information in the Radio Resource Control (RRC) cell IE is sent to the User Equipment (UE). The power offset information is used to serve the Physical Downlink Shared Channel (PDSCH) and/or coordinate scheduling PDSCH, wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time and frequency resources to form a multiplexed PDSCH. Send downlink control information indicating modulation information for the serving PDSCH; and This enables the UE to send data via the serving PDSCH using the same time and frequency resources as those used for the coordinated scheduling PDSCH. For one or more resource blocks (RBs), the UE determines a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH based on the power offset information and the modulation information. 16. The apparatus of claim 15, wherein the power offset information indicates a first indicated power offset subset of the serving PDSCH, the first indicated power offset subset of the serving PDSCH comprising power parameter values defined as: a first ratio of the serving PDSCH energy per resource element (EPRE) to the cell-specific reference signal (CRS), a second ratio of the serving PDSCH EPRE to the user-specific reference signal (UE-RS) EPRE, or a third ratio of the serving PDSCH EPRE to the total PDSCH EPRE; and The second indicated power offset subset of the coordinated scheduling PDSCH includes power parameter values defined as follows: a first ratio of the energy per resource element (EPRE) of the coordinated scheduling PDSCH to the cell-specific reference signal (CRS), a second ratio of the coordinated scheduling PDSCH EPRE to the user-specific reference signal (UE-RS) EPRE, or a third ratio of the coordinated scheduling PDSCH EPRE to the total PDSCH EPRE. 17. The apparatus of claim 16, wherein the modulation information indicates a first modulation order for the serving PDSCH, and the first ratio, the second ratio, or the third ratio within the first indicated power offset subset of the serving PDSCH depends on the first modulation order. 18. The apparatus of claim 15, wherein the power offset information indication includes one of at least two power offset values, namely a first value of 0 dB and a second value represented by “Pa”, wherein Pa is determined according to TS 36.213 and subsequent versions of the first 3GPP technical specification TS, the first value of 0 dB indicates no expected interference from the coordinated scheduling PDSCH, and the second value represented by Pa indicates expected interference from the coordinated scheduling PDSCH. 19. The apparatus of claim 15, comprising a digital display coupled to processor circuitry to present a user interface view. 20. A method for demodulating a signal, comprising: On a base station capable of operating according to one or more 3GPP Long Term Evolution LTE standards, including Long Term Evolution LTE Advanced LTE-A, power offset information in the Radio Resource Control (RRC) cell IE is transmitted to the User Equipment (UE). The power offset information is used to serve the Physical Downlink Shared Channel (PDSCH) and/or coordinate the scheduling of the PDSCH, wherein the serving PDSCH and the coordinated scheduling PDSCH share the same time and frequency resources to form a multiplexed PDSCH. Send downlink control information indicating modulation information for the serving PDSCH; and By using the same time and frequency resources as those used for the coordinated scheduling PDSCH, data is sent to the UE via the serving PDSCH. For one or more resource blocks (RBs), the UE determines a first detection power offset value for the serving PDSCH and a second detection power offset value for the coordinated scheduling PDSCH based on the power offset information and the modulation information. 21. The method of claim 20, wherein the power offset information indicates a first indicated power offset subset of the serving PDSCH, the first indicated power offset subset of the serving PDSCH comprising power parameter values defined as: a first ratio of the serving PDSCH energy per resource element (EPRE) to the cell-specific reference signal (CRS), a second ratio of the serving PDSCH EPRE to the user-specific reference signal (UE-RS) EPRE, or a third ratio of the serving PDSCH EPRE to the total PDSCH EPRE; and The second indicated power offset subset of the coordinated scheduling PDSCH includes power parameter values defined as follows: a first ratio of the energy per resource element (EPRE) of the coordinated scheduling PDSCH to the cell-specific reference signal (CRS), a second ratio of the coordinated scheduling PDSCH EPRE to the user-specific reference signal (UE-RS) EPRE, or a third ratio of the coordinated scheduling PDSCH EPRE to the total PDSCH EPRE. 22. The method of claim 21, wherein the modulation information indicates a first modulation order for the serving PDSCH, and the first ratio, the second ratio, or the third ratio within the first indicated power offset subset of the serving PDSCH depends on the first modulation order. 23. The method of claim 21, wherein the power offset information indication includes one of at least two power offset values, namely a first value of 0 dB and a second value represented by “Pa”, wherein Pa is determined according to TS 36.213 and subsequent versions of the first 3GPP technical specification TS, the first value of 0 dB indicates no expected interference from the coordinated scheduling PDSCH, and the second value represented by Pa indicates expected interference from the coordinated scheduling PDSCH. 24. A machine-readable medium comprising a plurality of instructions, the plurality of instructions being responsive to execution on a system at a base station to cause the system to perform the method according to any one of claims 20 to 23. 25. An apparatus for demodulating a signal, comprising a module for performing the method according to any one of claims 20 to 23.