CN102118841B - The method of sending and receiving of measurement pilot frequency and device, method for feedback of channel quality indication and device - Google Patents
The method of sending and receiving of measurement pilot frequency and device, method for feedback of channel quality indication and device Download PDFInfo
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Abstract
The invention provides a kind of method of sending and receiving and device, method for feedback of channel quality indication and device of measurement pilot frequency, wherein, the sending method of this measurement pilot frequency comprises: the transmitted power of base station allocating and measuring pilot tone; Base station periodically sends measurement pilot frequency according to configured transmitted power.By the present invention, can the transmitted power of reasonable disposition measurement pilot frequency, ensure the efficient and rational configuration of transmitted power.Terminal according to the power information of measurement pilot frequency, can complete the measurement of channel quality more exactly.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of method of sending and receiving and device, method for feedback of channel quality indication and device of measurement pilot frequency.
Background technology
MIMO (multiple-input and multiple-output) technology, as the physical layer multi-antenna technology of important raising transmission quality and efficiency, is played an important role in communication system of new generation.LTE system supports transmit diversity, the multiple MIMO technology such as space multiplexing technique and beam shaping (BF, Beamforming).Along with the further evolution of LTE standard, system will support more antenna port (as eight antenna ports), and MU-MIMO (for multi-user's multiple-input and multiple-output) technology also can be enhanced.In order to play MIMO technical advantage better, pilot configuration also there occurs corresponding change.Descending pilot frequency is divided into demodulation pilot frequency (i.e. DMRS) and measurement pilot frequency (i.e. CSI-RS), is respectively used to separate mediation channel measurement.
But, there is no the power distribution method of measurement pilot frequency at present.But, the relation (as ratio) of measurement pilot frequency and data power is CQI (Channel-QualityIndication, channel quality indicates) necessary information fed back, therefore, need necessary signaling terminal measurement pilot frequency power configuration.
Summary of the invention
For one or more problem set forth above, the invention provides a kind of method of sending and receiving and device, method for feedback of channel quality indication and device of measurement pilot frequency.
According to embodiments of the invention, provide a kind of sending method of measurement pilot frequency, the method comprises: the transmitted power of base station allocating and measuring pilot tone; Base station periodically sends measurement pilot frequency according to configured transmitted power.
According to embodiments of the invention, provide a kind of measurement pilot frequency method of reseptance, comprise: terminal receives measurement pilot frequency, and from high-level signaling or DCI signaling (DownlinkControlInformation, descending control signaling) obtain measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency.
According to embodiments of the invention, provide a kind of method for feedback of channel quality indication, comprising: terminal from high-level signaling or DCI signaling obtain measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency; And terminal is according to the power information acquisition channel quality instruction of measurement pilot frequency and by channel quality indication feedback to base station.
According to embodiments of the invention, provide a kind of dispensing device of measurement pilot frequency, comprising: configuration module, for the transmitted power of allocating and measuring pilot tone; And sending module, for periodically sending measurement pilot frequency according to configured transmitted power.
According to embodiments of the invention, provide a kind of measurement pilot frequency receiving system, comprising: receiver module, for receiving measurement pilot frequency; Power acquisition module, for obtain from high-level signaling or DCI signaling measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency.
According to embodiments of the invention, provide a kind of channel quality indication feedback device, comprise: transmitted power acquisition module, for obtain from high-level signaling or DCI signaling measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency; And feedback module, for obtaining channel quality instruction according to the power information of measurement pilot frequency and by channel quality indication feedback to base station.
By embodiments of the invention, can the transmitted power of reasonable disposition measurement pilot frequency, ensure the efficient and rational configuration of transmitted power.Terminal can indicate according to the transmitted power of measurement pilot frequency, completes the measurement of channel quality more exactly.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the sending method of measurement pilot frequency according to an embodiment of the invention;
Fig. 2 is the flow chart of method for feedback of channel quality indication according to an embodiment of the invention;
Fig. 3 is the block diagram of the dispensing device of measurement pilot frequency according to an embodiment of the invention;
Fig. 4 is the block diagram of the receiving system of measurement pilot frequency according to an embodiment of the invention; And
Fig. 5 is the block diagram of channel quality indication feedback device according to an embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings, the specific embodiment of the present invention is described in detail.
Fig. 1 is the flow chart of the sending method of measurement pilot frequency according to an embodiment of the invention.As shown in Figure 1, the sending method of measurement pilot frequency comprises:
Step S102, the transmitted power of base station allocating and measuring pilot tone.
Step S104, base station periodically sends measurement pilot frequency according to configured transmitted power.
Base station can configure the transmitted power of described measurement pilot frequency according to agreement method.Agreement method comprises: according to the transmitted power of the port number allocating and measuring pilot tone of transmission measurement pilot frequency.The transmitted power of measurement pilot frequency is relevant to the exclusive pilot power in community.When the port number sending measurement pilot frequency is N, the ratio of the exclusive pilot power of the transmitted power of measurement pilot frequency and community is N/4.
Base station can select the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency.The transmitted power configuration of measurement pilot frequency refers to one of at least following: the absolute value of measurement pilot frequency transmitted power; The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency, wherein, the molecule in this ratio and denominator can exchange, as long as the proportionate relationship both representing.The method that base station selects transmitted power to configure from limited power set at least can comprise one of following further: semi-static or from limited power set, select the transmitted power of measurement pilot frequency to configure statically according to MPS process; From limited power set, the transmitted power of described measurement pilot frequency is selected to configure according to the maximum transmission power on measurement pilot frequency port number and symbol; And from limited power set, select the transmitted power of measurement pilot frequency to configure according to data allocations power.
Base station can by high-level signaling or DCI signaling by the power information notification terminal of measurement pilot frequency.High-level signaling can be broadcast signaling.The power information of measurement pilot frequency refers to one of at least following: the relative value of the transmitted power of measurement pilot frequency or absolute value.Particularly, the power information of measurement pilot frequency refers to one of at least following: the absolute value of the transmitted power of measurement pilot frequency; Ratio between the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And the ratio between the absolute value not comprising the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
The embodiment of this sending method is at least applicable to one of following three kinds scenes, but is not limited thereto: 1, single base station sends the power information of the measurement pilot frequency of this base station to single or multiple terminal; 2, single base station sends the power information of the measurement pilot frequency of this base station and other base stations to single or multiple terminal; 3, multiple base station sends the power information of the measurement pilot frequency of this base station respectively to single or multiple terminal.
The method of reseptance of measurement pilot frequency comprises according to an embodiment of the invention: terminal receive measurement pilot frequency, and from high-level signaling or DCI signaling obtain measurement pilot frequency transmitted power or according to a preconcerted arrangement method obtain the transmitted power of measurement pilot frequency.
The power information of measurement pilot frequency at least can comprise one of following: the relative value of measurement pilot frequency transmitted power or absolute value.Particularly, the power information of measurement pilot frequency refers to one of at least following: the absolute value of the transmitted power of measurement pilot frequency; Ratio between the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And the ratio on the symbol not comprising measurement pilot frequency between the absolute value of data power and the absolute value of the transmitted power of measurement pilot frequency.
The embodiment of this method of reseptance is at least applicable to one of following two kinds scenes, but is not limited thereto: 1, terminal receives the power information of the measurement pilot frequency of single base station that single base station sends or multiple base station; 2, terminal receives the power information of the measurement pilot frequency that multiple base station sends.
Fig. 2 is the flow chart of method for feedback of channel quality indication according to an embodiment of the invention.As shown in Figure 2, method for feedback of channel quality indication comprises:
Step S202, terminal from high-level signaling or DCI signaling obtain measurement pilot frequency transmitted power or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency.
Step S204, terminal is according to the power information acquisition channel quality instruction of measurement pilot frequency and by channel quality indication feedback to base station.
The power information of measurement pilot frequency at least can comprise one of following: the relative value of measurement pilot frequency transmitted power or absolute value.The power information of measurement pilot frequency at least can comprise one of following: the absolute value of the transmitted power of measurement pilot frequency; Ratio between the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And the ratio between the absolute value not comprising the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
Terminal can according to the power ratio ρ between the power information acquisition data of described measurement pilot frequency and measurement pilot frequency
a, and according to the power ratio ρ between described data and measurement pilot frequency
athe instruction of described channel quality is obtained with the channel information that measurement pilot frequency obtains.
When the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS+ 10log
10(2); In other cases, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS, wherein, P
cRS/CSIRSfor the exclusive pilot power of absolute value and community of the transmitted power of measurement pilot frequency absolute value between relation, directly or indirectly obtained by the power information of measurement pilot frequency, δ
power-offsetby base station by high-level signaling notification terminal.
When the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
dATA/CSIRS+ 10log
10(2); In other cases, ρ
a=δ
power-offset+ P
dATA/CSIRS; Wherein, P
dATA/CSIRSfor the transmitting power of the absolute value and measurement pilot frequency that do not have the data power on the symbol of the exclusive pilot tone in community absolute value between relation, directly or indirectly obtained by the power information of measurement pilot frequency, δ
power-offsetby base station by high-level signaling notification terminal.
When calculating channel quality, needing to consider measurement pilot frequency power and the inconsistent problem of data power, but being not limited thereto information.
The embodiment of above-mentioned method for feedback of channel quality indication is at least applicable to one of following two kinds scenes, but is not limited thereto: 1, terminal indicates according to the power information feedback channel quality of the measurement pilot frequency of single base station; 2, terminal indicates according to the power information feedback channel quality of the measurement pilot frequency of multiple base station.
Fig. 3 is the block diagram of the dispensing device of measurement pilot frequency according to an embodiment of the invention.As shown in Figure 3, the dispensing device 300 of measurement pilot frequency comprises: configuration module 302, for the transmitted power of allocating and measuring pilot tone; And sending module 304, for periodically sending measurement pilot frequency according to configured transmitted power.
Configuration module can configure the transmitted power of described measurement pilot frequency according to agreement method.Agreement method comprises: the transmitted power sending the port number allocating and measuring pilot tone of measurement pilot frequency.The transmitted power of measurement pilot frequency can be relevant to the exclusive pilot power in community.When the port number sending measurement pilot frequency is N, the ratio of the exclusive pilot power of the transmitted power of measurement pilot frequency and community is configured to N/4 by configuration module, and wherein, N is positive integer.
Configuration module can select the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency.The transmitted power configuration of described measurement pilot frequency refers to one of at least following: the absolute value of measurement pilot frequency transmitted power; The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency.Particularly, the method that configuration module selects transmitted power to configure from limited power set at least can comprise one of following: semi-static or from limited power set, select the transmitted power of described measurement pilot frequency to configure statically according to MPS process; From limited power set, the transmitted power of described measurement pilot frequency is selected to configure according to the maximum transmission power on measurement pilot frequency port number and symbol; And from limited power set, select the transmitted power of measurement pilot frequency to configure according to data allocations power.
Sending module can by high-level signaling or DCI signaling by the power information notification terminal of measurement pilot frequency.
The power information of measurement pilot frequency at least comprises one of following: the relative value of the transmitted power of measurement pilot frequency or absolute value.High-level signaling can be broadcast signaling.The power information of measurement pilot frequency at least comprises one of following: the absolute value of the transmitted power of measurement pilot frequency; Ratio between the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And the ratio between the absolute value not comprising the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
The embodiment of this dispensing device is at least applicable to one of following three kinds scenes, but is not limited thereto: 1, single base station sends the power information of the measurement pilot frequency of this base station to single or multiple terminal; 2, single base station sends the power information of the measurement pilot frequency of this base station and other base stations to single or multiple terminal; 3, multiple base station sends the power information of the measurement pilot frequency of this base station respectively to single or multiple terminal.
Fig. 4 is the block diagram of the receiving system of measurement pilot frequency according to an embodiment of the invention.As shown in Figure 4, measurement pilot frequency receiving system 400 comprises: receiver module 402, for receiving measurement pilot frequency; Power acquisition module 404, for obtain from high-level signaling or DCI signaling measurement pilot frequency power information or according to a preconcerted arrangement method obtain the transmitted power of measurement pilot frequency.
The power information of measurement pilot frequency at least comprises one of following: the relative value of measurement pilot frequency transmitted power or absolute value.The power information of measurement pilot frequency at least comprises one of following: the absolute value of the transmitted power of measurement pilot frequency; Ratio between the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And the ratio of the absolute value of the absolute value of data power and the transmitted power of measurement pilot frequency on the symbol not comprising measurement pilot frequency.
The embodiment of this receiving system is at least applicable to one of following two kinds scenes, but is not limited thereto: 1, terminal receives the power information of the measurement pilot frequency of single base station that single base station sends or multiple base station; 2, terminal receives the power information of the measurement pilot frequency that multiple base station sends.
Fig. 5 is the block diagram of channel quality indication feedback device according to an embodiment of the invention.As shown in Figure 5, channel quality indication feedback device 500 comprises: transmitted power acquisition module 502, for obtain from high-level signaling or DCI signaling measurement pilot frequency transmitted power or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency; Feedback module 504, for obtaining channel quality instruction according to the power information of measurement pilot frequency and by channel quality indication feedback to base station.
The power information of measurement pilot frequency at least comprises one of following: the relative value of measurement pilot frequency transmitted power or absolute value.The power information of measurement pilot frequency at least comprises one of following: the absolute value of the transmitted power of measurement pilot frequency; The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And the ratio between the absolute value not comprising the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
Feedback module obtains the power ratio ρ between data and measurement pilot frequency according to the power information of described measurement pilot frequency
a, and according to the power ratio ρ between described data and measurement pilot frequency
athe instruction of described channel quality is obtained with the channel information that measurement pilot frequency obtains.
Power ratio ρ between data and measurement pilot frequency
afor: when the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS+ 10log
10(2); In other cases, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS, wherein, P
cRS/CSIRSfor the exclusive pilot power of absolute value and community of the transmitted power of measurement pilot frequency absolute value between relation, directly or indirectly obtained by the power information of measurement pilot frequency, δ
power-offsetby base station by high-level signaling notification terminal.
Power ratio ρ between data and measurement pilot frequency
afor: when the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
dATA/CSIRS+ 10log
10(2); In other cases, ρ
a=δ
power-offset+ P
dATA/CSIRS; Wherein, P
dATA/CSIRSfor the transmitting power of the absolute value and measurement pilot frequency that do not have the data power on the symbol of the exclusive pilot tone in community absolute value between relation, directly or indirectly obtained by the power information of measurement pilot frequency, δ
power-offsetby base station by high-level signaling notification terminal.
When calculating channel quality, needing to consider measurement pilot frequency power and the inconsistent problem of data power, but being not limited thereto information.
The embodiment of this channel quality indication feedback device is at least applicable to one of following two kinds scenes, but is not limited thereto: 1, terminal indicates according to the power information feedback channel quality of the measurement pilot frequency of single base station; 2, terminal indicates according to the power information feedback channel quality of the measurement pilot frequency of multiple base station.
Particularly, below specific embodiment is introduced:
One, base station periodically sends measurement pilot frequency, the wherein transmitted power of measurement pilot frequency one of as follows configuration:
(1) agreement method
Measurement pilot frequency transmitted power is relevant to the exclusive pilot power in community
When the port number sending measurement pilot frequency is N, the exclusive pilot power ratio of the transmitted power of measurement pilot frequency and community is N/4.
(2) configurable mode
Semi-static/from limited power set, to select transmitted power to configure statically.
I, according to MPS process option and installment from limited power set.
II, from limited power set, the transmitted power of described measurement pilot frequency is selected to configure according to the maximum transmission power on measurement pilot frequency port number and symbol.
III, ρ according to terminal configuration
a, ρ
b, and based on the consistent principle of data power on the symbol comprising/do not comprise measurement pilot frequency, calculate P
cSI-RS.P
cSI-RScan be select from limited set, also can be the value quantized.
Two, meanwhile, the power information of measurement pilot frequency one of is as follows sent to terminal by base station:
(1) absolute value indicating means
Adopt high-level signaling or the dominant absolute value (CSI-RSEPRE) indicating the transmitted power of measurement pilot frequency of DCI signaling.High-level signaling can be broadcast signaling.
(2) relative value indicating means (pilot tone as exclusive in reference cell)
I adopts high-level signaling or the dominant ratio indicating the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency of DCI signaling.
II adopt high-level signaling or DCI signaling dominant indicate do not comprise measurement pilot frequency symbol on ratio between the absolute value of data power and the absolute value of the transmitted power of measurement pilot frequency.
(3) sanctified by usage or recessive indicating means
UE can the configuration mode of measurement pilot frequency transmitted power according to a preconcerted arrangement, calculates absolute value or the relative value of the transmitted power of measurement pilot frequency, indicates without the need to signaling.
Three, terminal receive measurement pilot frequency, and from high-level signaling or DCI signaling obtain measurement pilot frequency transmitted power or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency, complete measurement of correlation (as CQI, PMI, RI etc.) based on measurement pilot frequency.
UE, when feeding back the measuring amount such as CQI, needs the Configuration Values of the transmitted power considering measurement pilot frequency.
1, when the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS+ 10log
10(2); In other cases, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS, wherein, P
cRS/CSIRSfor the exclusive pilot power of absolute value and community of the transmitted power of measurement pilot frequency absolute value between relation, directly or indirectly obtained by the power information of measurement pilot frequency, δ
power-offsetby base station by high-level signaling notification terminal.
Note; Above-mentioned computational methods are only embodiments based on R8 technology, and final computational methods are not limited thereto, and relevant to the MIMO technology that R10 adopts.
2, when the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
dATA/CSIRS+ 10log
10(2); In other cases, ρ
a=δ
power-offset+ P
dATA/CSIRS; Wherein, P
dATA/CSIRSfor the transmitting power of the absolute value and measurement pilot frequency that do not have the data power on the symbol of the exclusive pilot tone in community absolute value between relation, directly or indirectly obtained by the power information of measurement pilot frequency, δ
power-offsetby base station by high-level signaling notification terminal.
Note; Above-mentioned computational methods are only embodiments based on R8 technology, and final computational methods are not limited thereto, and relevant to the MIMO technology that R10 adopts.
By embodiments of the invention, can the transmitted power of reasonable disposition measurement pilot frequency, ensure the efficient and rational configuration of transmitted power.Terminal indicates according to the transmitted power of measurement pilot frequency, can complete the measurement of channel quality more exactly, and the present invention can not only feedback channel quality indicate, and can feed back more relevant information.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (33)
1. a sending method for measurement pilot frequency, is characterized in that, described method comprises:
The transmitted power of base station allocating and measuring pilot tone;
Described base station periodically sends measurement pilot frequency according to configured transmitted power,
Wherein, described base station selects the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency,
The transmitted power of described measurement pilot frequency is configured to the ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency;
Wherein, described base station configures the transmitted power of described measurement pilot frequency according to agreement method;
Wherein, described agreement method comprises: according to the transmitted power of the port number allocating and measuring pilot tone of transmission measurement pilot frequency;
Further, the transmitted power of described measurement pilot frequency is relevant to the exclusive pilot power in community.
2. method according to claim 1, is characterized in that, when the port number sending measurement pilot frequency is N, the ratio of the exclusive pilot power of transmitted power and described community of described measurement pilot frequency is N/4, and wherein, N is positive integer.
3. method according to claim 1, is characterized in that, the method that described base station selects transmitted power to configure from limited power set at least comprises one of following:
Described base station is semi-static or from limited power set, select the transmitted power of described measurement pilot frequency to configure statically according to MPS process; And
Described base station selects the transmitted power of described measurement pilot frequency to configure according to the maximum transmission power on measurement pilot frequency port number and symbol from limited power set; And
Described base station selects the transmitted power of described measurement pilot frequency to configure according to data allocations power from limited power set.
4. method according to claim 1, is characterized in that, described base station by high-level signaling or DCI signaling by the power information notification terminal of measurement pilot frequency.
5. method according to claim 4, is characterized in that, described high-level signaling is broadcast signaling.
6. method according to claim 4, is characterized in that, the power information of described measurement pilot frequency is the relative value of the transmitted power of measurement pilot frequency.
7. method according to claim 6, is characterized in that, the power information of described measurement pilot frequency refers to one of at least following:
The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And
Do not comprise the ratio of the absolute value of the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
8. a measurement pilot frequency method of reseptance, is characterized in that, described method comprises:
Terminal receive measurement pilot frequency, and from high-level signaling or DCI signaling obtain measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency,
Wherein, base station selects the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency,
The transmitted power of described measurement pilot frequency is configured to the ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency;
Wherein, the transmitted power of described measurement pilot frequency is relevant to the exclusive pilot power in community.
9. method according to claim 8, is characterized in that, the power information of described measurement pilot frequency is the relative value of measurement pilot frequency transmitted power.
10. method according to claim 8, is characterized in that, the power information of described measurement pilot frequency at least comprises one of following:
The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And
Do not comprise the ratio of the absolute value of the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
11. 1 kinds of method for feedback of channel quality indication, is characterized in that, described method comprises:
Terminal from high-level signaling or DCI signaling obtain measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency; And
Described terminal according to the power information of described measurement pilot frequency obtain data channel quality instruction and by described channel quality indication feedback to base station,
Wherein, described base station selects the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency,
The transmitted power of described measurement pilot frequency is configured to the ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency;
Wherein, the transmitted power of described measurement pilot frequency is relevant to the exclusive pilot power in community.
12. methods according to claim 11, is characterized in that, the power information of described measurement pilot frequency is the relative value of measurement pilot frequency transmitted power.
13. methods according to claim 11, is characterized in that, the power information of described measurement pilot frequency at least comprises one of following:
The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And
Do not comprise the ratio of the absolute value of the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
14. methods according to claim 11, is characterized in that, described terminal obtains the power ratio ρ between data and measurement pilot frequency according to the power information of described measurement pilot frequency
a, and according to the power ratio ρ between described data and measurement pilot frequency
athe instruction of described channel quality is obtained with the channel information that measurement pilot frequency obtains.
15. methods according to claim 14, is characterized in that, the power ratio ρ between described data and measurement pilot frequency
afor:
When the data acquisition that described terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS+ 10log
10(2);
In other cases, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS,
Wherein, P
cRS/CSIRSfor the exclusive pilot power of absolute value and community of the transmitted power of measurement pilot frequency absolute value between relation, directly or indirectly obtained by the power information of described measurement pilot frequency, δ
power-offsetdescribed terminal is notified by high-level signaling by base station.
16. methods according to claim 14, is characterized in that, the power ratio ρ between described data and measurement pilot frequency
afor:
When the data acquisition that described terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
dATA/CSIRS+ 10log
10(2);
In other cases, ρ
a=δ
power-offset+ P
dATA/CSIRS;
Wherein, P
dATA/CSIRSfor the transmitting power of the absolute value and measurement pilot frequency that do not have the data power on the symbol of the exclusive pilot tone in community absolute value between relation, directly or indirectly obtained by the power information of described measurement pilot frequency, δ
power-offsetdescribed terminal is notified by high-level signaling by base station.
The dispensing device of 17. 1 kinds of measurement pilot frequency, is characterized in that, described dispensing device comprises:
Configuration module, for the transmitted power of allocating and measuring pilot tone; And
Sending module, for periodically sending measurement pilot frequency according to configured transmitted power,
Wherein, base station selects the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency,
The transmitted power of described measurement pilot frequency is configured to the ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency;
Wherein, described configuration module configures the transmitted power of described measurement pilot frequency according to agreement method;
Wherein, described agreement method comprises: the transmitted power sending the port number allocating and measuring pilot tone of measurement pilot frequency;
Further, the transmitted power of described measurement pilot frequency is relevant to the exclusive pilot power in community.
18. dispensing devices according to claim 17, is characterized in that, when the port number sending measurement pilot frequency is N, the ratio of the exclusive pilot power of the transmitted power of described measurement pilot frequency and community is configured to N/4 by described configuration module, and wherein, N is positive integer.
19. dispensing devices according to claim 17, is characterized in that, described configuration module selects the transmitted power of measurement pilot frequency to configure from limited power set, and carry out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency.
20. dispensing devices according to claim 19, is characterized in that, the method that described configuration module selects transmitted power to configure from limited power set at least comprises one of following:
Semi-static or from limited power set, select the transmitted power of described measurement pilot frequency to configure statically according to MPS process;
From limited power set, the transmitted power of described measurement pilot frequency is selected to configure according to the maximum transmission power on measurement pilot frequency port number and symbol; And
From limited power set, the transmitted power of described measurement pilot frequency is selected to configure according to data allocations power.
21. dispensing devices according to claim 19, is characterized in that, described sending module by high-level signaling or DCI signaling by the power information notification terminal of measurement pilot frequency.
22. dispensing devices according to claim 21, is characterized in that, described high-level signaling is broadcast signaling.
23. dispensing devices according to claim 21, is characterized in that, the power information of described measurement pilot frequency is the relative value of the transmitted power of measurement pilot frequency.
24. dispensing devices according to claim 23, is characterized in that, the power information of described measurement pilot frequency at least comprises one of following:
The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And
Do not comprise the ratio of the absolute value of the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
25. 1 kinds of measurement pilot frequency receiving systems, is characterized in that, described device comprises:
Receiver module, for receiving measurement pilot frequency;
Power acquisition module, for obtain from high-level signaling or DCI signaling measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency,
Wherein, base station selects the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency,
The transmitted power of described measurement pilot frequency is configured to the ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency;
Wherein, the transmitted power of described measurement pilot frequency is relevant to the exclusive pilot power in community.
26. receiving systems according to claim 25, is characterized in that, the power information of described measurement pilot frequency is the relative value of measurement pilot frequency transmitted power.
27. receiving systems according to claim 26, is characterized in that, the power information of described measurement pilot frequency at least comprises one of following:
The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And
The ratio of the absolute value of the absolute value of data power and the transmitted power of measurement pilot frequency on the symbol not comprising measurement pilot frequency.
28. 1 kinds of channel quality indication feedback devices, is characterized in that, described device comprises:
Transmitted power acquisition module, for obtain from high-level signaling or DCI signaling measurement pilot frequency power information or according to a preconcerted arrangement method obtain the power information of measurement pilot frequency;
Feedback module, for obtaining channel quality instruction according to the power information of described measurement pilot frequency and by described channel quality indication feedback to base station,
Wherein, described base station selects the transmitted power of measurement pilot frequency to configure from limited power set, and carrys out the transmitted power of allocating and measuring pilot tone according to the transmitted power configuration of described measurement pilot frequency,
The transmitted power of described measurement pilot frequency is configured to the ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency;
Wherein, the transmitted power of described measurement pilot frequency is relevant to the exclusive pilot power in community.
29. feedback devices according to claim 28, is characterized in that, the power information of described measurement pilot frequency is the relative value of measurement pilot frequency transmitted power.
30. feedback devices according to claim 28, is characterized in that, the power information of described measurement pilot frequency at least comprises one of following:
The ratio of the absolute value of the absolute value of the exclusive pilot power in community and the transmitted power of measurement pilot frequency; And
Do not comprise the ratio of the absolute value of the absolute value of the data power on the symbol of measurement pilot frequency and the transmitted power of measurement pilot frequency.
31. feedback devices according to claim 28, is characterized in that, described feedback module obtains the power ratio ρ between data and measurement pilot frequency according to the power information of described measurement pilot frequency
a, and according to the power ratio ρ between described data and measurement pilot frequency
athe instruction of described channel quality is obtained with the channel information that measurement pilot frequency obtains.
32. feedback devices according to claim 31, is characterized in that, the power ratio ρ between described data and measurement pilot frequency
afor:
When the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS+ 10log
10(2);
In other cases, ρ
a=δ
power-offset+ P
a+ P
cRS/CSIRS,
Wherein, P
cRS/CSIRSfor the exclusive pilot power of absolute value and community of the transmitted power of measurement pilot frequency absolute value between relation, directly or indirectly obtained by the power information of described measurement pilot frequency, δ
power-offsetdescribed terminal is notified by high-level signaling by base station.
33. feedback devices according to claim 31, is characterized in that, the power ratio ρ between described data and measurement pilot frequency
afor:
When the data acquisition that terminal receives is with four antenna transmission diversities, ρ
a=δ
power-offset+ P
dATA/CSIRS+ 10log
10(2); And
In other cases, ρ
a=δ
power-offset+ P
dATA/CSIRS;
Wherein, P
dATA/CSIRSfor the transmitting power of the absolute value and measurement pilot frequency that do not have the data power on the symbol of the exclusive pilot tone in community absolute value between relation, directly or indirectly obtained by the power information of described measurement pilot frequency, δ
power-offsetdescribed terminal is notified by high-level signaling by base station.
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| CN201010203128.XA CN102118841B (en) | 2010-06-18 | 2010-06-18 | The method of sending and receiving of measurement pilot frequency and device, method for feedback of channel quality indication and device |
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| WO2013115706A2 (en) * | 2012-01-30 | 2013-08-08 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for pilot power allocation in a multi antenna communication system |
| US9426664B2 (en) | 2012-02-08 | 2016-08-23 | Broadcom Corporation | Control mechanism for communication via different frequency bands |
| EP2632071A1 (en) * | 2012-02-21 | 2013-08-28 | Thomson Licensing | Method for assessing quality of a radio transmission channel, and residential gateway using the method |
| CN104852786B (en) * | 2014-02-19 | 2018-08-10 | 中国移动通信集团公司 | The method for reconfiguration and device of channel state information reference signals CSI-RS |
| CN104202073A (en) * | 2014-03-04 | 2014-12-10 | 中兴通讯股份有限公司 | Channel information feedback method, pilot frequency and wave beam transmitting methods, systems and devices |
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| CN101188445A (en) * | 2006-08-26 | 2008-05-28 | 华为技术有限公司 | Method and device for adjusting transmission power of pilot channel |
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| CN101188445A (en) * | 2006-08-26 | 2008-05-28 | 华为技术有限公司 | Method and device for adjusting transmission power of pilot channel |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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