CN103188804B - A kind of wireless resource allocation methods, Apparatus and system - Google Patents

Abstract

The present invention provides a wireless resource allocation method, device and system to solve the problem in the prior art that in a system with multiple frequency bands in the same cell, sometimes the UE cannot access the network because it cannot tune to the frequency band allocated by the RNC. , the method is applied to a system with multiple frequency bands in the same cell, including: the RNC allocates the first frequency band to the UE according to the information that the UE supports the first frequency band, and when the preset frequency band allocation rule is to allocate the first frequency band to the UE preferentially. Two frequency bands, where the first frequency band and the second frequency band are the frequency bands supported by some and all UEs in the system respectively. After receiving the RB establishment completion message reported by the UE, the RNC sends a message to the UE to reconfigure to the first frequency band. During the UE access process, the second frequency band supported by all UEs is allocated first, and then reconfigured to the second frequency band supported by some UEs, thereby avoiding the UE being unable to tune to the first frequency band allocated by the RNC due to false reporting of terminal capabilities , and the call cannot be established.

Description

A wireless resource allocation method, device and system

technical field

The present invention relates to the wireless field, in particular to a method, device and system for allocating wireless resources.

Background technique

In some existing 3G and 4G networks, some system frequency band division adopts the concept of "multiple frequency bands, same cell". The concept of "same cell", that is, the same cell has two different frequency bands, but only uses one main frequency. According to the specification definition in 5.2 of 3GPPTS25.105, the following frequency bands are allocated to TD-SCDMA technical standards: a) 1900-1920MHz, 2010-2025MHz; b) 1850-1910MHz, 1930-1990MHz; c) 1910-1930MHz; d) 2570-2620MHz; e) 2300-24000MHz; f) 1880-1920MHz. Taking China Mobile's TD-SCDMA system as an example, the TD-SCDMA system can use 2010-2025MHZ, 1880-1920MHZ, and 2300-2400MHZ respectively, which are referred to as a-band, f-band, and e-band respectively. A frequency band, f frequency band, e frequency band means. When China Mobile began to deploy TD-SCDMA network in 2007, it only used 2010-2025MHZ, that is, frequency band a. Therefore, all terminals only support a-band. With the continuous expansion of the TD-SCDMA network scale and the increase in capacity demand, China Mobile introduced the deployment of the 1880-1920MHZ frequency band, namely the f-band, in 2010, so some newly launched terminals also began to support the 1880-1920MHZ frequency band. The TD-SCDMA system is a "multi-frequency band, same cell" system. Of course, there are some other similar 3G and 4G network systems, such as WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access) system or LTE (Long Term Evolution, Long Term Evolution) system in 3G. It is worth noting that the multi-band deployment of TD-SCDMA is completely different from that of GSM: the 900MHZ frequency band and the 1800MHZ frequency band of GSM use two different cells respectively, while the 1880-1920MHZ and 2010-2025MHZ frequency bands of TD-SCDMA use the same Residential area, main frequency is generally among 2010-2025MHZ.

In the TD-SCDMA system, when a terminal initiates a service, an RRC (RadioResourceControl, radio resource control protocol) connection must first be established. Tell the RNC (RadioNetworkController, radio network controller) the capabilities of the UE. The RNC will allocate appropriate radio resources (ie, frequency point, time slot, code channel) to the UE according to the capability reported by the UE and the RRM (Radio Resource Management, radio resource management) algorithm of the RNC. For example, during a certain RRC establishment process, the UE tells the RNC in RRCConnectionComplete that the UE supports frequency band a, that is, 2010-2025MHZ. At the same time, it also supports the f frequency band, that is, 1880-1920MHZ. When the RNC records the frequency band support capability of the UE, it will allocate a suitable frequency band to the UE during the establishment of the RB (Radio Bearer, radio bearer) according to the RRM algorithm set by the RNC. . Since the resource utilization rate of frequency band f is much lower than that of frequency band a, for the consideration of load sharing and interference reduction, in the RNC algorithm setting of RNC, in the prior art, as long as UE supports frequency band a and frequency band f at the same time, UE is given priority Allocate the f-band. However, in practical applications, it is sometimes found that the UE cannot tune to the f-band, and cannot report RBSetupComplete (RB setup complete) to the RNC. RNC reports RABAssignmentResponse to CN after waiting for a certain period of time, such as 5 seconds, and the reason value is RNLCUeRabOperTimeOut, that is, RAB establishment timeout.

It can be seen that the following problems exist in the prior art: in a system with multiple frequency bands in the same cell, sometimes the UE cannot access the network because it cannot tune to the frequency band allocated to it by the RNC.

Contents of the invention

The purpose of the present invention is to solve the problem existing in the prior art that in a system with multiple frequency bands in the same cell, sometimes the UE cannot access the network because it cannot tune to the frequency band allocated by the RNC, and provides a wireless resource allocation method, Device and system, the method is applied to a system with multiple frequency bands in the same cell, including:

The radio network controller RNC receives the information reported by the user terminal UE during the establishment of the radio resource control protocol RRC connection, indicating that the UE supports the first frequency band;

In the case where the preset frequency band allocation rule is to allocate the first frequency band to the UE first, the RNC allocates the second frequency band to the UE, wherein the second frequency band is a frequency band supported by all UEs in the system, and the first frequency band is a part of UEs in the system Supported frequency bands;

After receiving the radio bearer establishment completion message reported by the UE, the RNC sends a message of reconfiguration to the first frequency band to the UE.

Further, the method further includes: when the preset frequency band allocation rule is to preferentially allocate the second frequency band to the UE, the RNC allocates the second frequency band to the UE and directly enters into the service processing procedure.

Further, the RNC sends a message to the UE to reconfigure to the first frequency band, specifically:

The RNC sends a radio bearer reconfiguration message to the UE; or

The RNC sends a physical channel reconfiguration message to the UE.

Further, after the RNC sends the message of reconfiguration to the first frequency band to the UE, it also includes:

The RNC receives the reconfiguration failure message sent by the UE because it does not actually support the first frequency band;

The RNC records that the UE's frequency band support capability is that the UE does not support the first frequency band, and uses it as a basis for resource allocation during internal handover.

Further, the reconfiguration failure message is a radio bearer reconfiguration failure message, or a physical channel reconfiguration failure message.

The embodiment of the present invention also provides a wireless resource allocation device, which is applied to a system with multiple frequency bands in the same cell, including:

The first receiving module is configured to receive the information that the UE supports the first frequency band reported by the user terminal UE during the establishment of the radio resource control protocol RRC connection;

The first allocation module is configured to allocate a second frequency band to the UE when the preset frequency band allocation rule is to preferentially allocate the first frequency band to the UE, wherein the second frequency band is a frequency band supported by all UEs in the system, and the first The frequency band is the frequency band supported by some UEs in the system;

The reconfiguration module is configured to send a message of reconfiguration to the first frequency band to the UE after receiving the radio bearer establishment completion message reported by the UE.

Further, it also includes:

The second allocating module is configured to allocate the second frequency band to the UE and directly enter into the service processing procedure when the preset frequency band allocation rule is to preferentially allocate the second frequency band to the UE.

Further, the reconfiguration module is also configured to deliver a radio bearer reconfiguration message to the UE; or

Send a physical channel reconfiguration message to the UE.

Further, it also includes:

The second receiving module is configured to receive a reconfiguration failure message sent by the UE because it does not actually support the first frequency band;

The recording module is used to record the frequency band support capability of the UE as the UE does not support the first frequency band, and use it as a basis for resource allocation during internal handover.

Further, the reconfiguration failure message is a radio bearer reconfiguration failure message, or a physical channel reconfiguration failure message.

The embodiment of the present invention also provides a wireless resource allocation system, the system is a system with multiple frequency bands in the same cell, including:

The user terminal is configured to report information indicating that the UE supports the first frequency band to the radio network controller RNC during the establishment of the radio resource control protocol RRC connection;

The radio network controller is configured to allocate a second frequency band to the UE when the preset frequency band allocation rule is to preferentially allocate the first frequency band to the UE, wherein the second frequency band is a frequency band supported by all UEs in the system, and the first The frequency band is the frequency band supported by some UEs in the system. After receiving the radio bearer establishment completion message reported by the UE, it sends a message to the UE to reconfigure to the first frequency band.

Further, the radio network controller is also configured to deliver a radio bearer reconfiguration message to the UE, or deliver a physical channel reconfiguration message to the UE.

Further, the radio network controller is also used to receive a reconfiguration failure message sent by the UE because it does not actually support the first frequency band, record the frequency band support capability of the UE as the UE does not support the first frequency band, and use it as a basis for resource allocation during internal handover .

Further, the reconfiguration failure message is a radio bearer reconfiguration failure message, or a physical channel reconfiguration failure message.

During the UE access process, the second frequency band supported by all UEs is allocated first, and then reconfigured to the first frequency band supported by some UEs, thereby avoiding the UE being unable to tune to the first frequency band allocated by the RNC due to false positives , and the call cannot be established.

Description of drawings

Fig. 1 represents the method flowchart provided by the present invention;

Fig. 2 shows the flow chart of the specific implementation method of the embodiment provided by the present invention;

Fig. 3 represents the device structural diagram provided by the present invention;

Fig. 4 shows a system structure diagram provided by the present invention.

detailed description

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. The embodiments of the present invention provide a wireless resource allocation method, device, and system to solve the problems existing in the prior art, such as multiple frequency bands in the same cell In the system, sometimes the UE cannot access the network because it cannot tune to the frequency band allocated by the RNC.

When solving this technical problem, the inventor found that although as mentioned above, the RNC will support the f-band and its own RRM algorithm according to the frequency band support capability reported by the terminal, and will preferentially allocate the f-band to the UE, but at the same time this brings a serious problem. Problem: Once the frequency band support capability reported by the UE does not match its actual frequency band support capability, service establishment will fail. A typical case is as follows. A certain type of UE reports in RRCConnectionComplete that it supports f-band, but in fact, through a large number of signaling files and test analysis, it is found that this type of UE does not actually support f-band. As a result, RAB establishment fails, and services cannot be established normally. The RNC establishes RBSetup in the f frequency band. However, due to the actual frequency band capability, the UE does not support the f-band, cannot tune to the f-band, and cannot report RBSetupComplete to the RNC. The RNC reports the RABAssignmentResponse to the CN after waiting for a timeout of 5 seconds, and the reason value is RNLCUeRabOperTimeOut, that is, the RAB establishment timeout.

Based on this, the wireless resource allocation method provided by the embodiment of the present invention is mainly based on the following two realistic premises: 1. All terminals in the existing network TD-SCDMA system support a frequency band (2010-2025MHz), but not necessarily all terminals (Some terminals) all support the f frequency point (1880-1920MHz), that is to say, the terminals supporting the f frequency band must support the a frequency band. 2. The RRM algorithm of the RNC is set to f frequency band first. This is because frequency band a is supported by all terminals and bears a large amount of traffic. Therefore, from the perspective of load sharing, setting priority to frequency band f is the default practice on the live network.

The flow chart of the embodiment of the present invention is shown in Figure 1 below, including the following steps:

In step 101, the UE reports information indicating that the UE supports the f frequency band to the radio network controller RNC during the establishment of the RRC connection.

In step 102, the RNC allocates the frequency band a to the UE when the preset frequency band allocation rule is to preferentially allocate the frequency band f to the UE.

Step 103, the UE reports a radio bearer establishment complete message to the RNC.

Step 104: After receiving the radio bearer establishment completion message reported by the UE, the RNC sends a message of reconfiguration to the f frequency band to the UE.

Since the a frequency band supported by all UEs is first allocated during the UE access process, and then reconfigured to the f frequency band, it is avoided that the UE cannot tune to the frequency band allocated by the RNC due to false positives, and cannot access the network.

The embodiment of the present invention will be described in detail below with reference to FIG. 2 .

Step 201. During the RRC establishment process, the UE reports in RRCConnectionSetupComplete that it supports frequency band f.

If it supports the f-band terminal, it must also support the a-band, and vice versa. RRCConnectionComplete in this step.

Step 202 , judging whether the RNC RRM algorithm is set to preferentially allocate frequency band f, if yes, go to step 204 ; otherwise, go to step 203 .

The preset frequency band allocation rule in this embodiment is realized by the RRM algorithm of the RNC.

In step 203, the RNC allocates frequency band a to the UE, and enters step 210.

Step 204, the RNC first allocates the core frequency band a of TD-SCDMA to the UE.

In this step, frequency band a (a frequency band that should be allocated preferentially according to the RRM algorithm) is not allocated to the UE, so as to ensure that the UE can firstly access the network successfully.

Step 205, the RNC receives the RBSetupComplete message reported by the UE, triggers the RNC to deliver RBReconfiguration or PhysicalChannelReconfiguration to the UE, and reconfigures the UE to the f-band.

The RBSetupComplete message marks the completion of RB setup. The RBSetupComplete message will trigger the RNC to send RBReconfiguration (radio bearer reconfiguration message) or PhysicalChannelReconfiguration (physical channel reconfiguration message) to the UE to reconfigure the UE to the f-band.

Step 206 , the UE judges whether to support the f-band, if the UE does not actually support the f-band, then proceed to step 208 ; if the UE actually supports the f-band, then proceed to step 207 .

It can be seen from this step that the UE may not actually support the f-band, but it falsely reports that it supports the f-band during the RRC establishment process.

Step 207, reconfigure to f-band, go to step 210.

Step 208, UE replies to RNC with RBReconfigurationFailure or PhysicalChannelReconfigurationFailure.

The failure reason carried is: InvalidConfiguration/ConfigurationUnsupported (wrong configuration/configuration is not supported). Since there is a rollback mechanism for handover failure, RBReconfigurationFailure reconfiguration failure or PhysicalChannelReconfigurationFailure physical channel reconfiguration failure will not affect the service performed by the UE. After the reconfiguration fails, the UE will continue to perform services on the a-band. Both the RB reconfiguration failure message and the physical channel reconfiguration failure message are reconfiguration failure messages, indicating that the UE does not actually support the f-band.

In step 209, the RNC records the actual frequency band support capability of the UE, which is used as a basis for resource allocation during intra-RNC handover.

If it is an inter-RNC handover, the original RNC informs the target RNC about the capability of the terminal in the RelocationRequired signaling.

Step 210, enter into the business processing flow.

When this step is specifically implemented, it may be to carry out subsequent normal call flow.

The embodiment of the present invention also provides a wireless resource allocation device. As shown in FIG. 3, the device is applied to a system with multiple frequency bands in the same cell, including:

The first receiving module 301 is configured to receive information indicating that the UE supports the first frequency band reported by the user terminal UE during the establishment of the radio resource control protocol RRC connection;

The first allocation module 302 is configured to allocate a second frequency band to the UE when the preset frequency band allocation rule is to preferentially allocate the first frequency band to the UE, wherein the second frequency band is a frequency band supported by all UEs in the system, and the second frequency band is supported by all UEs in the system. A frequency band is a frequency band supported by some UEs in the system;

The reconfiguration module 303 is configured to send a message of reconfiguration to the first frequency band to the UE after receiving the radio bearer establishment completion message reported by the UE.

Further, it also includes:

The second allocating module 304 is configured to allocate the second frequency band to the UE and directly enter into a service processing procedure when the preset frequency band allocation rule is to preferentially allocate the second frequency band to the UE.

Further, the reconfiguration module 303 is also configured to deliver a radio bearer reconfiguration message to the UE; or

Send a physical channel reconfiguration message to the UE.

Further, it also includes:

The second receiving module 305 is configured to receive a reconfiguration failure message sent by the UE because it does not actually support the first frequency band;

The recording module 306 is configured to record the frequency band support capability of the UE as the UE does not support the first frequency band, and use it as a basis for resource allocation during internal handover.

Further, the reconfiguration failure message is a radio bearer reconfiguration failure message, or a physical channel reconfiguration failure message.

The embodiment of the present invention also provides a wireless resource allocation system, as shown in FIG. 4 , including:

The user terminal 401 is configured to report information indicating that the UE supports the first frequency band to the radio network controller RNC during the establishment of the radio resource control protocol RRC connection;

The radio network controller 402 is configured to allocate a second frequency band to the UE when the preset frequency band allocation rule is to preferentially allocate the first frequency band to the UE, where the second frequency band is a frequency band supported by all UEs in the system. The first frequency band is a frequency band supported by some UEs in the system. After receiving the radio bearer establishment completion message reported by the UE, a message of reconfiguration to the first frequency band is sent to the UE.

Further, the radio network controller 402 is also configured to deliver a radio bearer reconfiguration message to the UE, or deliver a physical channel reconfiguration message to the UE.

Further, the radio network controller 402 is also configured to receive a reconfiguration failure message sent by the UE because it does not actually support the first frequency band, record the frequency band support capability of the UE as the UE does not support the first frequency band, and use it as a resource allocation during internal handover in accordance with.

Further, the reconfiguration failure message is a radio bearer reconfiguration failure message, or a physical channel reconfiguration failure message.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it still Modifications or equivalent replacements can be made to the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims (14)

1. a wireless resource allocation methods, is characterized in that, the method is applied to multiband with in the system of community, comprising:

Radio network controller (RNC) reception user terminal UE reports in radio resource control RRC connection establishment process, represents that UE supports the information of the first frequency range;

In the frequency allocation rule preset for for UE priority allocation the first frequency range, RNC is that UE distributes the second frequency range, and wherein, the second frequency range is the frequency range that in system, whole UE all supports, the first frequency range is the frequency range that in system, part UE supports;

After the radio bearer that RNC reception UE reports has set up message, issue the message of reprovision to the first frequency range to UE.

2. the method for claim 1, is characterized in that, also comprises: in the frequency allocation rule preset for for UE priority allocation the second frequency range, and RNC is that UE distributes the second frequency range and directly enters business processing flow.

3. the method for claim 1, is characterized in that, RNC issues reprovision to UE and is specially to the message of the first frequency range:

RNC issues radio bearer to UE and reconfigures message; Or

RNC issues physical channel to UE and reconfigures message.

4. method as claimed in claim 3, it is characterized in that, RNC issues reprovision to UE and also comprises after the message of the first frequency range:

RNC receives the reprovision failed message that UE sends because reality does not support the first frequency range;

The frequency range tenability that RNC records UE is that UE does not support the first frequency range, and as Resourse Distribute foundation when switching in inside.

5. method as claimed in claim 4, it is characterized in that, reprovision failed message is that radio bearer reconfigures failed message, or physical channel reconfigures failed message.

6. a radio resource allocation apparatus, is characterized in that, this application of installation, comprising in multiband with in the system of community:

First receiver module, for receiving, user terminal UE reports in radio resource control RRC connection establishment process, represents that UE supports the information of the first frequency range;

First distribution module, for when the frequency allocation rule preset is for being UE priority allocation the first frequency range, for UE distributes the second frequency range, wherein, the second frequency range is the frequency range that in system, whole UE all supports, the first frequency range is the frequency range that in system, part UE supports;

Reprovision module, after the radio bearer reported has set up message, issues the message of reprovision to the first frequency range to UE for receiving UE.

7. device as claimed in claim 6, is characterized in that, also comprise:

Second distribution module, for when the frequency allocation rule preset is for being UE priority allocation the second frequency range, distributes the second frequency range for UE and directly entering business processing flow.

8. device as claimed in claim 6, is characterized in that, reprovision module, also reconfiguring message for issuing radio bearer to UE; Or

Issue physical channel to UE and reconfigure message.

9. device as claimed in claim 8, is characterized in that, also comprise:

Second receiver module, for receiving the reprovision failed message that UE sends because reality does not support the first frequency range;

Logging modle is that UE does not support the first frequency range for recording the frequency range tenability of UE, and as Resourse Distribute foundation when switching in inside.

10. device as claimed in claim 9, it is characterized in that, reprovision failed message is that radio bearer reconfigures failed message, or physical channel reconfigures failed message.

11. 1 kinds of allocation of radio resources systems, is characterized in that, this system is the system of multiband with community, comprising:

User terminal, for reporting to radio network controller (RNC) in radio resource control RRC connection establishment process, represents that UE supports the information of the first frequency range;

Radio network controller, for when the frequency allocation rule preset is for being UE priority allocation the first frequency range, for UE distributes the second frequency range, wherein, second frequency range is the frequency range that in system, whole UE all supports, first frequency range is the frequency range that in system, part UE supports, after the radio bearer that reception UE reports has set up message, issues the message of reprovision to the first frequency range to UE.

12. systems as claimed in claim 11, is characterized in that, radio network controller, also reconfiguring message for issuing radio bearer to UE, or issue physical channel to UE and reconfigure message.

13. systems as claimed in claim 12, it is characterized in that, radio network controller, also for receiving the reprovision failed message that UE sends because reality does not support the first frequency range, the frequency range tenability of record UE is that UE does not support the first frequency range, and as Resourse Distribute foundation when switching in inside.

14. systems as claimed in claim 13, is characterized in that, reprovision failed message is that radio bearer reconfigures failed message, or physical channel reconfigures failed message.