WO2012149727A1

WO2012149727A1 - Method, device and system for reconfiguring radio resource

Info

Publication number: WO2012149727A1
Application number: PCT/CN2011/079375
Authority: WO
Inventors: 黄飞; 高财; 李洁
Original assignee: 华为技术有限公司
Priority date: 2011-09-06
Filing date: 2011-09-06
Publication date: 2012-11-08
Also published as: CN102379145A

Abstract

The present invention provides a method, a device and a system for reconfiguring a radio resource. The method comprises: a user equipment receiving radio carrier reconfiguration information sent by a network side device; suspending data sending of a service radio carrier and after a radio carrier of the user equipment is reconfigured according to the radio carrier reconfiguration information, sending a radio carrier reconfiguration completion message to the network side device; and receiving acknowledgement information of the radio carrier reconfiguration completion message sent by the network side device, and restoring the suspended data sending of the service radio carrier. The solution provided in the present invention effectively solves the problem of synchronization between the network side device and the user equipment during the radio carrier reconfiguration.

Description

Radio resource reconfiguration method, device and system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for reconfiguring radio resources. Background technique

The state of the Radio Resource Control (abbreviation: RRC) module in Wideband Code Division Multiple Access (WCDMA) can be divided into continuous mode and idle mode. The connection mode can be further divided into: a cell dedicated channel (CELL_DCH) state, a cell forward random access channel (CELL_FACH) state, a cell paging channel (CELL_PCH) state, and a registered area paging channel (URA_PCH) state. The CELL-DCH state and the CELL-F ACH state can be switched to each other.

When the user equipment (User Equipment, UE for short) is in the CELL-FACH state, it indicates that the wireless data is carried on a common physical channel, and is generally applied to low-speed and small-traffic services. When the UE is in the CELL_DCH state, it indicates that the wireless data is carried on a dedicated physical channel, and is generally applied to a service with high high-speed throughput.

When the network side device changes the service traffic, the radio bearer (Radio Bear, RB for short) message is sent to the UE through the air interface message to notify the UE of the handover state. The UE sends the RB to the physical layer, the Media Control Center (MAC), and the Radio Link Control (RLC) according to the received RB reconfiguration information. The reconfiguration complete message is sent to the network side device. The RB reconfiguration information sent by the network side device to the UE may be notified to the UE to re-establish uplink or downlink or bidirectional. When the CELL-DCH state and the CELL-FACH state are switched to each other, or the CELL-FACH state is switched to the CELL-DCH state, since the connection frame number (CFN) cannot be set, the activation time of the reconfiguration is usually Are all equipped Set to activate immediately.

In the process of implementing the present invention, the inventor has found that at least the following problems exist in the prior art: Since the effective time of the immediate activation of the network side device and the UE is not synchronized, the UE in some networks directly encounters the service RB. Reset the action, resetting the protocol data unit (Protocol Data Unit, PDU for short) to be confirmed by the radio link controller and the Service Data Unit (SDU) that has been segmented. , causing the rate to drop suddenly and the recovery time to be longer. The UEs in some networks responded mildly by initiating a stateful packet. However, the inconsistency of such network processing will increase the cost of positioning and solving the problem for U E. Summary of the invention

The embodiment of the present invention provides a method, a device, and a system for reconfiguring a radio resource, which are used to solve the sudden drop in the rate caused by the network side device and the UE not being synchronized for the immediate activation time in the radio bearer reconfiguration process in the prior art. The problem of long recovery time is that the transmission and reception time of the network side device and the UE in the new configuration are kept synchronized.

An embodiment of the present invention provides a method for reconfiguring a radio resource, including:

The user equipment receives the radio bearer reconfiguration information sent by the network side device;

After the data transmission of the service radio bearer is suspended, and the radio bearer of the radio bearer is reconfigured according to the radio bearer reconfiguration information, the radio bearer reconfiguration complete message is sent to the network side device;

And receiving the acknowledgement information of the radio bearer reconfiguration complete message sent by the network side device, and recovering the data transmission of the suspended service radio bearer.

An embodiment of the present invention provides a user equipment, including:

a receiving module, configured to receive radio bearer reconfiguration information sent by the network side device;

a reconfiguration module, configured to suspend data transmission of the service radio bearer and reconfigure the radio bearer according to the radio bearer reconfiguration information, and send a radio bearer reconfiguration complete message to the network side device;

a recovery module, configured to receive the radio bearer reconfiguration complete message sent by the network side device Confirming the information, and restoring the data transmission of the suspended service radio bearer.

The embodiment of the invention further provides a network side device, including:

And a reconfiguration module, configured to send the radio bearer reconfiguration information to the user equipment, so that the user equipment suspends the radio bearer according to the radio bearer reconfiguration information, and suspends the data transmission of the service radio bearer;

And a confirmation module, configured to receive a radio bearer reconfiguration complete message sent by the user equipment, and send the acknowledgement information to the user equipment, so that the user equipment resumes data transmission of the service radio bearer according to the acknowledgement information.

The embodiment of the present invention further provides a reconfiguration system for a radio resource, including the user equipment and the network side device as described above.

The method, device, and system for reconfiguring a radio resource according to the embodiment of the present invention, when the activation time in the radio bearer reconfiguration information is immediately activated, the user equipment suspends data transmission of the service radio bearer, and receives the network side device After the acknowledgment information of the radio bearer reconfiguration complete message is sent, the data transmission of the service radio bearer is resumed, so that the transmission and reception time of the network side device and the user equipment in the new configuration are kept synchronized, and the rate caused by the re-setting action of the service RB is avoided. The rate of slowdown and slow recovery. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a flowchart of a method for reconfiguring a radio resource according to an embodiment of the present invention;

2 is a flow chart of interaction of a method for reconfiguring a radio resource according to another embodiment of the present invention; FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a radio resource reconfiguration system according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a flowchart of a method for reconfiguring a radio resource according to an embodiment of the present invention. As shown in FIG. 1, the method includes:

Step 101: The user equipment receives radio bearer reconfiguration information sent by the network side device.

Step 102: Suspend the data transmission of the service radio bearer and reconfigure the radio bearer according to the radio bearer reconfiguration information, and then send the radio bearer reconfiguration complete message to the network side device.

Step 103: Receive the acknowledgement information of the radio bearer reconfiguration complete message sent by the network side device, and resume data transmission of the suspended service radio bearer.

The embodiment of the present invention provides a method for reconfiguring a radio resource. When the activation time in the radio bearer reconfiguration information is immediately activated, the user equipment suspends data transmission of the service radio bearer, and sends the data to the network side device. After the acknowledgment information of the radio bearer reconfiguration complete message is restored, the data transmission of the service radio bearer is resumed, so that the transmission and reception time of the network side device and the user equipment in the new configuration are kept synchronized, and the rate of the service RB re-setting action is prevented from being steep. And the problem of slow rate recovery.

FIG. 2 is a flowchart of an interaction method of a radio resource reconfiguration method according to another embodiment of the present invention. FIG. 2 is a specific implementation manner of the method shown in FIG. 1, but is not used to limit the protection scope of the present invention. As shown in Figure 2, the method includes:

Step 201: The RRC module of the network side device sends an air interface message to the RRC module of the user equipment. The air interface message carries RB reconfiguration information (RB_ReConfig), where the activation time is immediate activation. It should be noted that the activation time is meaning of immediate activation, which can be understood as the configuration takes effect immediately. Step 202: The RRC module of the user equipment sends a suspension request message to the radio link controller of the user equipment.

The suspend request message may be RRC-RLC_SUSPEND-REQ, and the message carries the ID of the RB that suspends the request. The radio link controller of the user equipment may suspend data transmission of the RB corresponding to the ID according to the ID of the RB that suspends the request.

Step 203: The RRC module of the user equipment sends a confirmation mode data request message to the radio link controller of the user equipment.

The acknowledge mode data request message may be RRC_RLC_DATA_REQ, the ID of the RB carrying the request data, and the requested data content. The radio link controller of the user equipment reconfigures its own radio bearer based on the acknowledge mode data request message.

Step 204: The RRC module of the user equipment receives a data acknowledgement message sent by the radio link controller of the user equipment.

The data acknowledgement message may be RRC_RLC_DATA_Cnf, and the message carries the confirmed SDU, and these parameters are used for confirming that the RRC module sends the SDU data, that is, the radio link controller of the user equipment has been confirmed according to the confirmation. The mode data request message is reconfigured for its own radio bearer.

Step 205: The RRC module of the user equipment sends an air interface message to the RRC module of the network side device. The air interface message carries the result of completing the RB reconfiguration (RB_ReConfig_Complete). Step 206: After receiving the acknowledgement message of the network side device, the RRC module of the user equipment sends a data recovery request message to the radio link controller of the user equipment.

The data recovery request message may be RRC-RLC_ Resume_REQ, where the message carries the ID of the RB of the data recovery request, and these parameters are used to recover the data transmission on the RB.

The embodiment of the present invention provides a method for reconfiguring a radio resource. When the activation time in the radio bearer reconfiguration information is immediately activated, the user equipment suspends data transmission of the service radio bearer, and sends the data to the network side device. After the acknowledgment information of the radio bearer reconfiguration complete message is recovered, the data transmission of the service radio bearer is resumed, and the data of the service RB must be successfully received by the network side device. After the message is sent, the transmission and reception time of the network side device and the user equipment in the new configuration are kept synchronized, which avoids the problem that the network side device and the user equipment have a steep rate drop and a slow rate recovery due to the inconsistent activation time.

FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. The user equipment is a specific entity that implements the foregoing method embodiment. The user equipment includes: a receiving module 301, a reconfiguration module 302, and a recovery module 303. The receiving module 301 is configured to receive radio bearer reconfiguration information sent by the network side device, where the activation time in the radio bearer reconfiguration information is immediately activated; the reconfiguration module 302 is configured to suspend data transmission of the service radio bearer and according to the wireless After the bearer reconfiguration information reconfigures its own radio bearer, the radio bearer reconfiguration complete message is sent to the network side device. The recovery module 303 is configured to receive the acknowledgement information of the radio bearer reconfiguration complete message sent by the network side device, and restore the data transmission of the suspended service radio bearer.

In an embodiment, the reconfiguration module 302 includes a sending unit, where the sending unit is configured to send a suspend request message to the radio link controller of the user equipment, where the suspend request message carries the radio bearer of the suspend request. The identifier is such that the radio link controller of the user equipment suspends data transmission of the radio bearer corresponding to the identifier.

In an embodiment, the recovery module 303 includes a sending unit, where the sending unit is configured to send a data recovery request message to the radio link controller of the user equipment, where the identifier of the radio bearer carrying the data recovery request in the data recovery request message So that the radio link controller of the user equipment recovers the data transmission of the radio bearer corresponding to the identifier.

FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention. As shown in FIG. 4, the network side device includes: a reconfiguration module 401 and a confirmation module 402. The reconfiguration module 401 is configured to send radio bearer reconfiguration information to the user equipment, where the activation time in the radio bearer reconfiguration information is immediately activated, so that the user equipment performs reconfiguration of the radio bearer according to the radio bearer reconfiguration information, and Suspend the data transmission of the service radio bearer. The acknowledgment module 402 is configured to receive the radio bearer reconfiguration complete message sent by the user equipment, and send the acknowledgment information of the radio bearer reconfiguration complete message to the user equipment, so that the user equipment resumes data transmission of the service radio bearer according to the acknowledgment information. FIG. 5 is a schematic structural diagram of a radio resource reconfiguration system according to an embodiment of the present invention. As shown in FIG. 5, the system includes: the user equipment 501 shown in FIG. 3 and the network side device 502 shown in FIG. 4.

The embodiment of the present invention provides a radio resource reconfiguration system. When the activation time in the radio bearer reconfiguration information is immediately activated, the user equipment suspends the data transmission of the service radio bearer, and sends the data to the network side device. After the acknowledgment information of the radio bearer reconfiguration complete message is restored, the data transmission of the service radio bearer is resumed, so that the transmission and reception time of the network side device and the user equipment in the new configuration are kept synchronized, and the rate of the service RB re-setting action is prevented from being steep. And the problem of slow rate recovery.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A method for reconfiguring a radio resource, comprising:

The method according to claim 1, wherein the data transmission of the suspended service radio bearer comprises:

The user equipment sends a suspend request message to the radio link controller of the user equipment, where the suspend request message carries the identifier of the radio bearer of the suspend request, so that the radio link controller of the user equipment Suspending data transmission of the radio bearer corresponding to the identifier.

The method according to claim 1 or 2, wherein the recovering the data transmission of the suspended service radio bearer comprises:

The user equipment sends a data recovery request message to the radio link controller of the user equipment, where the data recovery request message carries the identifier of the radio bearer of the data recovery request, so that the radio link controller of the user equipment Restoring data transmission of the radio bearer corresponding to the identifier.

4. A user equipment, comprising:

And a recovery module, configured to receive the acknowledgement information of the radio bearer reconfiguration complete message sent by the network side device, and resume data transmission of the suspended service radio bearer.

The user equipment according to claim 4, wherein the reconfiguration module includes a sending unit, and the sending unit is configured to: send a suspend request message to the radio link control of the user equipment The acknowledgment request message carries the identifier of the radio bearer of the hang request, so that the radio link controller of the user equipment suspends data transmission of the radio bearer corresponding to the identifier.

The user equipment according to claim 4, wherein the recovery module includes a sending unit, and the sending unit is configured to: use a data recovery request message to the radio link controller of the user equipment, The data recovery request message carries the identifier of the radio bearer of the data recovery request, so that the radio link controller of the user equipment recovers the data transmission of the radio bearer corresponding to the identifier.

7. A network side device, comprising:

a re-configuration module, configured to send radio bearer reconfiguration information to the user equipment, so that the user equipment performs reconfiguration of the radio bearer according to the radio bearer reconfiguration information and suspends data transmission of the service radio bearer;

A reconfiguration system for a radio resource, comprising: the user equipment according to any one of claims 4 to 6 and the network side device according to claim 7.