WO2012174794A1

WO2012174794A1 - Method and system for reconfiguring service in circuit switched um rlc mode in mobile communication system

Info

Publication number: WO2012174794A1
Application number: PCT/CN2011/079435
Authority: WO
Inventors: 陈艳丽; 黄庆; 程翔
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-06-22
Filing date: 2011-09-07
Publication date: 2012-12-27
Also published as: CN102843674A

Abstract

Disclosed are a method and system for reconfiguring a service in a circuit switched UM RLC mode in a mobile communication system. The method and system provide a data encryption execution method used in a procedure for reconfiguring a service in a circuit switched UM RLC mode. The data encryption execution method provides a new HFN initializing method for a circuit switched UM RLC COUNT-C and an UM RLC uplink/downlink data processing procedure, thereby reducing the service data delay and interrupt time before and after the reconfiguration of a service in a circuit switched UM RLC mode, and improving the service quality.

Description

Circuit domain UM RLC mode service reconfiguration method and system in mobile communication system

The present invention relates to the field of communications, and in particular, to a service reconfiguration method and system for a circuit domain unresponsive wireless link control (UM RLC) mode in a mobile communication system. Background technique

In the RRC (Radio Resource Control) of the third generation mobile communication system, if any non-acknowledged mode UM service of the RLC (Radio Link Control Protocol, Radio Link Control) is reconfigured, for example, the UM RLC service The radio bearer reconfiguration process occurs. In the RRC radio bearer reconfiguration message (RADIO BEARER RECONFIGURATION), Downlink counter synchronization info or New U-RNTI (New U-RNTI), UE (User Equipment, User) is configured. Equipment) UM RLC reconstruction occurs, where the steps related to UE side data encryption accompanying the process are as follows:

When the UE receives an RRC message (for example, in the above radio bearer reconfiguration message) carries New U-RNTI or Downlink counter synchronization info day on, shellfish ^1] Li ^ ⁷ configured to perform all of the UM RLC UM RLC service stop ( UM RLC STOP );

After receiving the RLC ACK of the corresponding RRC response message (such as the radio bearer reconfiguration response message, which is transmitted in the RLC (AM RLC mode) mode), the UE performs the UM RLC CONTINUE of the corresponding service; Then, the UM RLC of each service is reconstructed, wherein the superframe number HFN of the UM RLC plus official counter COUNT-C is initialized by 20 bits with the initial value START information of the corresponding field in the RRC response message.

Through the above steps, the UM RLC reconstruction and data encryption and decryption parameter update of the radio bearer service in the UM RLC mode are completed on the UE side, and the RNC (Radio Network Controller) performs a similar process to ensure the execution is completed. After the service reconfiguration process, UE and The consistency of the UM RLC encryption and decryption parameters between the RNCs ensures the correct encryption, decryption, and transmission and reception of the uplink and downlink service data of the UM RLC.

However, it can also be seen from the above that during the service reconfiguration execution of the entire UM RLC mode service (the period is: receiving the RRC message of the RNC from the UE to receiving the RRC message response message RLC ACK corresponding thereto) None of the UM RLC service data can be sent or received; this processing mode results in real-time services (such as AMR OVER HSPA for voice services carried on the High Speed Downlink Shared Channel/Enhanced Dedicated Channel (HS-DSCH/E-DCH)) (this service is UM RLC) Mode) The service experience is worse, which is manifested in that after the real-time service reconfiguration of the circuit domain UM RLC mode, the voice cannot be recovered in a short time, so that the voice has a large delay, and is accompanied by a certain degree. The voice is intermittent, which in turn reduces the user experience. Summary of the invention

It is an object of the present invention to provide a service reconfiguration method and system for a circuit domain UM RLC mode in a mobile communication system, for data of a service such as a circuit domain service that simultaneously configures a UM RLC service (for example, an AMR OVER HSPA service) before and after service reconfiguration. The present invention can enable the transmission and reception of service data as soon as possible after reconfiguration, such as the AMR OVER HSPA service, so that the voice delay and the intermittent time are reduced to some extent.

In order to achieve the above object, the present invention adopts the following technical solutions:

A service reconfiguration method for a circuit domain UM RLC mode in a mobile communication system, comprising: Al, a radio network controller (RNC) initiating a circuit domain radio resource control (RRC) reconfiguration message, wherein the message includes an Activation Time letter Element, and one of the Downlink counter synchronization info cell and the New U-RNTI cell;

Bl, the UM RLC entity of the RNC circuit domain reconstructs the circuit domain service UM RLC according to the RRC reconfiguration message, and initializes the circuit domain service according to the latest circuit domain START

RLC's COUNT-C HFN is 20 digits high. Subsequently, the RNC circuit domain service performs encryption and decryption of the uplink and downlink data by using the updated COUNT-C.

Preferably, in the step B1, the RNC sends a radio link control entity configuration message CRLC_CONFIG_Req to the UM RLC entity of the circuit domain, and the UM RLC entity of the RNC circuit domain synchronizes according to the Activation Time cell in the RRC reconfiguration message. Rebuild circuit domain service UM RLCo when configuration takes effect

Preferably, in the step B1, the method includes:

Bll, the RNC checks whether the RRC reconfiguration message carries the Downlink counter synchronization info cell or the New U-RNTI cell, and whether to carry the Activation Time cell. If it is carried, the circuit domain is reconstructed after the time of the Activation Time cell arrives. UM RLC, and initializes the COUNT-C HFN high 20 bits of the circuit domain UM RLC service with the most recent circuit domain START message.

A service reconfiguration method for a circuit domain UM RLC mode in a mobile communication system, comprising: A2, an RNC initiating a circuit domain RRC reconfiguration message, wherein the message includes an Activation Time cell, and a Downlink counter synchronization info cell and New One of the U-RNTI cells;

B2: After receiving the RRC reconfiguration message, the user equipment UE checks the validity of the RRC reconfiguration message, and if it is legal, the UM RLC entity of the UE circuit domain reestablishes the circuit domain service UM RLC according to the RRC reconfiguration message, and The COUNT-C HFN high 20 bits of the circuit domain service UM RLC are initialized according to the latest circuit domain START information.

Subsequently, the UE circuit domain service performs encryption and decryption of the uplink and downlink data by using the updated COUNT-C.

Preferably, in the step B2, after receiving the RRC reconfiguration message and checking its validity, the UE sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain, and the UM RLC entity of the UE circuit domain according to the RRC reconfiguration message The Activation Time cell in the same Rebuild the circuit domain service UM RLC when the step configuration takes effect.

Preferably, in the step B2, the method includes:

B21. The UE receives the RRC reconfiguration message.

B22. The UE checks whether the RRC reconfiguration message carries a Downlink counter synchronization info cell or a New U-RNTI cell, and whether the operation carries an Activation Time cell. If the time is up, the UE rebuilds the circuit domain after the time of the Activation Time cell. UM RLC, and initializes the COUNT-C HFN high 20 bits of the circuit domain UM RLC service with the most recent circuit domain START message.

A circuit domain UM RLC mode service reconfiguration system in a mobile communication system, comprising:

And an RNC, configured to initiate a circuit domain radio resource control RRC reconfiguration message, where the message includes an Activation Time cell, and one of a Downlink counter synchronization info cell and a New U-RNTI cell;

a UM RLC entity of the RNC circuit domain, configured to reconstruct the circuit domain service UM RLC according to the RRC reconfiguration message, and initialize the COUNT-C HFN 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information;

The UE is configured to receive an RRC reconfiguration message, and check the validity of the RRC reconfiguration message, and if yes, send the RRC reconfiguration message to the UM RLC entity of the UE circuit domain;

The UM RLC entity of the UE circuit domain is configured to reconstruct the circuit domain service UM RLC according to the RRC reconfiguration message, and initialize the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information.

A service domain reconfiguration method in a circuit domain UM RLC mode in a mobile communication system, including:

A3. The RNC initiates a circuit domain RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell;

Performing L1 synchronization between B3, RNC and UE;

C3. The UM RLC entity of the RNC circuit domain reconstructs the circuit according to the RRC reconfiguration message. The domain service UM RLC, and initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information.

Subsequently, the RNC circuit domain service performs encryption and decryption of the uplink and downlink data by using the updated COUNT-C.

Preferably, in the step B3, the RNC sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain after completing the synchronization with the target radio link, and the RNC reconstructs the circuit domain service UM. Preferably, in the step C3, the UE is in the completion and After the target radio link is synchronized, the CRLC_CONFIG_Req is sent to the UM RLC entity of the circuit domain, and the UE reestablishes the circuit domain service UM. Preferably, in the step C3, the method includes:

C31. After detecting that the UE and the target radio link are successfully synchronized, the RNC sends an RRC reconfiguration message to the UM RLC entity of the circuit domain service.

The UM RLC entity of the C32, RNC circuit domain service reconstructs the circuit domain UM RLC according to the RRC reconfiguration message, and initializes the COUNT-C HFN 20 bits of the circuit domain UM RLC service with the latest circuit domain START information.

A4. The RNC initiates a circuit domain RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell.

Performing L1 synchronization between B4, RNC and UE;

After receiving the RRC reconfiguration message and completing the verification of the RRC reconfiguration message, the UE sends the message to the UM RLC entity of the UE circuit domain, and the UM RLC entity of the UE circuit domain reestablishes the circuit domain service according to the RRC reconfiguration message. UM RLC, and initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information.

Subsequently, the UE circuit domain service performs uplink and downlink data by using the updated COUNT-C. Add and decrypt.

Preferably, in the step C4, the method includes:

C41. The UE receives the RRC reconfiguration message.

C42. The UE checks whether the RRC reconfiguration message carries the physical channel related cell. If the UE is carried, the UE and the target radio link L1 are successfully synchronized, and then the circuit domain UM RLC is reconstructed, and the circuit domain UM RLC service is initialized with the latest circuit domain START information. The COUNT-C HFN is 20 digits high.

A service reconfiguration system in a circuit domain UM RLC mode in a mobile communication system, comprising: an RNC, configured to initiate a circuit domain RRC reconfiguration message, wherein the message includes a Downlink counter synchronization info cell and a New U-RNTI cell One of them, including physical channel related cells^

The UM RLC entity of the RNC circuit domain is configured to re-establish the circuit domain service UM RLC according to the RRC reconfiguration message after the RNC and the UE complete the radio link L1 synchronization, and initialize the circuit domain service UM RLC according to the latest circuit domain START information. COUNT-C HFN is 20 digits high;

The UE, after receiving the RRC reconfiguration message and completing the verification of the RRC reconfiguration message, sending the physical channel related cell to the UM RLC entity of the UE circuit domain;

The UM RLC entity of the UE circuit domain is configured to re-establish the circuit domain service UM RLC according to the RRC reconfiguration message after the UE and the RNC complete the radio link L1 synchronization, and initialize the circuit domain service UM RLC according to the latest circuit domain START information. COUNT-C HFN is 20 digits high.

A5. The RNC initiates a circuit domain RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell.

B5. The UM RLC entity of the RNC circuit domain reconstructs the circuit domain service UM RLC according to the RRC reconfiguration message, and initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information.

Subsequently, the RNC circuit domain service uses the updated COUNT-C to execute uplink and downlink data. Encryption and decryption.

Preferably, in the step B5, after the RNC initiates the circuit domain RRC reconfiguration message, if there is no physical channel related cell in the RRC reconfiguration message, the UE does not communicate with the target radio link. The new L1 synchronization is performed, and the RNC immediately sends a CRLC_CONFIG_Req to the UM RLC entity of the RNC circuit domain, wherein the CRLC_CONFIG_Req includes the last circuit domain START information.

Preferably, in the step B5, the method includes:

B51. The RNC checks whether the RRC reconfiguration message carries a Downlink counter synchronization info cell or a New U-RNTI cell. If not, the RNC terminates, and if not, the ^first step is performed.

B52. The RNC checks that there is no physical channel related cell in the RRC reconfiguration message, and the RNC immediately reconstructs the circuit domain UM RLC, and initializes the COUNT-C HFN 20 bits of the circuit domain UM RLC service with the latest circuit domain START information.

A6. The RNC initiates a circuit domain RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell.

B6. The UE receives the RRC reconfiguration message, and the UM RLC entity of the UE circuit domain re-establishes the circuit domain service UM RLC according to the RRC reconfiguration message, and initializes the COUNT-C of the circuit domain service UM RLC according to the latest circuit domain START information. The HFN is 20 high.

Preferably, in the step B6, the method includes:

B61. The UE receives the RRC reconfiguration message.

B62. The UE checks whether the RRC reconfiguration message carries a Downlink counter synchronization info cell or a New U-RNTI cell. If not, the UE ends. Otherwise, Carry out the next step;

B63. The UE checks that there is no physical channel related cell in the RRC reconfiguration message, and the UE immediately reconstructs the circuit domain UM RLC, and initializes the COUNT-C HFN of the circuit domain UM RLC service by 20 bits with the latest circuit domain START information.

An RNC, configured to initiate a circuit domain RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell;

a UM RLC entity of the RNC circuit domain, configured to reconstruct the circuit domain service UM RLC according to the RRC reconfiguration message, and initialize the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information;

The UE is configured to: when receiving the RRC reconfiguration message and when the Activation Time cell is in effect, send the RRC reconfiguration message to the UM RLC entity of the UE circuit domain;

The service reconfiguration method and system of the circuit domain UM RLC mode in the mobile communication system provided by the present invention provide a data encryption execution process of the circuit domain UM RLC mode service reconfiguration process and a processing process of the UM RLC uplink and downlink data, which are reduced. The delay and interruption time of service data before and after service reconfiguration in the circuit domain UM RLC mode improves the service quality. DRAWINGS

1 is a message exchange process between a UE and an RNC in a UM RLC circuit domain service synchronization reconfiguration process according to Embodiment 1 of the present invention;

2 is a message exchange process between a UE and an RNC in a synchronous reconfiguration process of a UM RLC circuit domain service according to a second embodiment of the present invention; 3 is a message exchange process between the UE and the RNC in the UM RLC circuit domain service asynchronous reconfiguration process in the third embodiment of the present invention without the UE and the target radio link synchronization condition;

4 is a process of processing a UM RLC circuit domain service in a source RNC in a process of "relying a SRNS relocation of a UE" according to an embodiment of the present invention;

FIG. 5 is a process diagram of a UE in a UM RLC circuit domain service reconfiguration process according to an embodiment of the present invention;

FIG. 6 is a flowchart of processing a source RNC in a UM RLC circuit domain service reconfiguration process according to an embodiment of the present invention. detailed description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments to enable those skilled in the art to understand the invention. .

Embodiment 1

An embodiment of the present invention provides a service reconfiguration method in a circuit domain UM RLC mode in a mobile communication system, including:

Al, a radio network controller (RNC) initiates a circuit domain radio resource control (RRC) reconfiguration message, where the RRC reconfiguration message includes an activation time (Activity Time) cell, and a Downlink counter synchronization info cell and New U - one of the RNTI cells;

The UM RLC entity of the Bl, RNC circuit domain reconstructs the circuit domain service UM RLC according to the RRC reconfiguration message, and initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain initial value (START).

In a preferred embodiment of this embodiment, in the step B1, the RNC sends a wireless chain. The path control entity configuration message (CRLC_CONFIG_Req) is sent to the UM RLC entity of the circuit domain, and the UM RLC entity of the RNC circuit domain re-establishes the circuit domain service UM RLC according to the Activation Time cell in the RRC reconfiguration message when the synchronization configuration takes effect.

In a preferred embodiment of the embodiment, in the step B1, the method includes:

In this embodiment, a service reconfiguration method of the circuit domain UM RLC mode in another mobile communication system is also provided, including:

A2: The RNC initiates a circuit domain RRC reconfiguration message, wherein the message includes an Activation Time cell, and one of a Downlink counter synchronization info cell and a New U-RNTI cell;

After receiving the RRC reconfiguration message, the UE checks the validity of the RRC reconfiguration message. If the UE is legal, the UM RLC entity of the UE circuit domain reestablishes the circuit domain service UM RLC according to the RRC reconfiguration message, and according to the latest The primary circuit domain START information initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC.

In a preferred embodiment of the present embodiment, in the step B2, after receiving the RRC reconfiguration message and checking its validity, the UE sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain, and the UM RLC entity of the UE circuit domain. The circuit domain service UM RLC is reconstructed according to the Activation Time cell in the RRC reconfiguration message when the synchronization configuration takes effect.

In a preferred embodiment of the embodiment, in the step B2, the method includes: B21. The UE receives the RRC reconfiguration message.

More specifically, please refer to FIG. 1, which describes the message interaction process between the UE and the RNC in the UM RLC circuit domain service synchronization reconfiguration process:

Step 1010: The RNC initiates a UM RLC circuit domain service radio bearer reconfiguration message, including a cell Downlink counter synchronization info or New U-RNTI, and an Activation Time;

Step 1020: The RNC sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain service, and is used to reconstruct the circuit domain service UM RLC when the synchronization configuration takes effect (reference cell Activation Time) and initialize the COUNT of the circuit domain service UM RLC with the latest circuit domain START. -C HFN is 20 high;

Step 1040: After receiving the radio bearer reconfiguration message and completing the message validity check, the UE sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain service, and is used to reconstruct the circuit domain service UM RLC and use the synchronization configuration when the synchronization configuration takes effect (reference cell Activation Time). The last circuit domain START initializes the COUNT-C HFN of the circuit domain service UM RLC by 20 bits; Step 1050: Data encryption, decryption and transceiving of the circuit domain UM RLC service can be performed normally between the UE and the RNC;

Step 1060: The UE sends a radio bearer reconfiguration complete message to the RNC.

The embodiment of the present invention further provides a service reconfiguration system of a circuit domain UM RLC mode in a mobile communication system, including:

An RNC, configured to initiate a circuit domain RRC reconfiguration message, where the message includes an Activation Time cell, and one of the Downlink counter synchronization info cell and the New U-RNTI cell;

Embodiment 2

Performing L1 synchronization between B3, RNC and UE;

The UM RLC entity of the C3, RNC circuit domain reconstructs the circuit domain service UM RLC according to the RRC reconfiguration message, and initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information.

In a preferred embodiment of the present embodiment, in the step B3, the RNC sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain after the completion of the synchronization with the target radio link, and the RNC reconstructs the circuit domain service UM RLC.

In a preferred embodiment of this embodiment, in the step C3, the UE is in completion and target After the wireless link is synchronized, CRLC_CONFIG_Req is sent to the UM RLC entity of the circuit domain, and the UE reconstructs the circuit domain service UM RLCo

In a preferred embodiment of the embodiment, in the step C3, the method includes:

The embodiment of the present invention further provides a service reconfiguration method of the circuit domain UM RLC mode in another mobile communication system, including:

Performing L1 synchronization between B4, RNC and UE;

In a preferred embodiment of the embodiment, in the step C4, the method includes:

C41. The UE receives the RRC reconfiguration message.

More specifically, please refer to FIG. 2, which depicts the asynchronous reconfiguration of the UM RLC circuit domain service. The process has a message exchange process between the UE and the RNC under the condition that the UE and the target radio link are synchronized: Step 2010: The RNC initiates a UM RLC circuit domain service radio bearer reconfiguration message, including a cell Downlink counter synchronization info or New U-RNTI. No Activation Time;

Step 2020: If the radio bearer reconfiguration message changes information such as a physical channel, performing L1 synchronization between the UE and the target radio link;

Step 2030: After the RNC detects that the UE and the target radio link are successfully synchronized, the CRLC_CONFIG_Req is sent to the UM RLC entity of the circuit domain service, used to reconstruct the circuit domain service UM RLC and initialize the COUNT of the circuit domain service UM RLC with the latest circuit domain START. C HFN is 20 high;

Step 2035: After the UE completes the synchronization with the target radio link, the CRLC_CONFIG_Req is sent to the UM RLC entity of the circuit domain service, used to reconstruct the circuit domain service UM RLC and initialize the COUNT-C of the circuit domain service UM RLC with the latest circuit domain START. HFN is 20 high;

Step 2040: Data encryption, decryption, and transceiving of the circuit domain UM RLC service can be performed normally between the UE and the RNC.

Step 2050: The UE sends a radio bearer reconfiguration complete message to the RNC.

The embodiment of the present invention further provides a service reconfiguration system in a circuit domain UM RLC mode in a mobile communication system, including:

The RNC is configured to initiate a circuit domain RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell, including a physical channel related cell.

The UM RLC entity of the RNC circuit domain is configured to re-establish the circuit domain service UM RLC according to the RRC reconfiguration message after the RNC and the UE complete the radio link L1 synchronization, and initialize the circuit domain service UM RLC according to the latest circuit domain START information. COUNT-C HFN is 20 digits high; The UE, after receiving the RRC reconfiguration message and completing the verification of the RRC reconfiguration message, sending the physical channel related cell to the UM RLC entity of the UE circuit domain;

Embodiment 3

In a preferred embodiment of the present embodiment, in the step B5, after the RNC initiates the circuit domain RRC reconfiguration message, if there is no physical channel related cell in the RRC reconfiguration message, the UE does not Performing a new L1 synchronization with the target radio link, the RNC immediately sends a CRLC_CONFIG_Req to the UM RLC entity of the RNC circuit domain, wherein the CRLC_CONFIG_Req includes the most recent circuit domain START information.

In a preferred embodiment of the embodiment, in the step B5, the method includes:

B52: The RNC checks that there is no physical channel related cell in the RRC reconfiguration message, and then the RNC The circuit domain UM RLC is immediately reconstructed, and the COUNT-C HFN high 20 bits of the circuit domain UM RLC service are initialized with the most recent circuit domain START information.

In this embodiment of the present invention, a service reconfiguration method of the circuit domain UM RLC mode in another mobile communication system is further provided, including:

In a preferred embodiment of the embodiment, in the step B6, the method includes:

B61. The UE receives the RRC reconfiguration message.

B62: The UE checks whether the Downlink counter synchronization info cell or the New U-RNTI cell carries the RRC reconfiguration message, and if not, terminates; otherwise, performs the next step;

For details, refer to FIG. 3, which describes a message exchange process between the UE and the RNC in the UM RLC circuit domain service asynchronous reconfiguration process without the UE and the target radio link synchronization condition: Step 3010: The RNC initiates the UM RLC circuit domain service. Radio bearer reconfiguration message, including the cell Downlink counter synchronization info or New U-RNTI, no Activation Time;

Step 3020: If there are no physical channel related cells in the radio bearer configuration message, That is, the UE does not need to perform new L1 synchronization, and the RNC immediately sends CRLC_CONFIG_Req to the RLC entity of the UM RLC circuit domain service, including the most recent circuit domain START;

Step 3030: The RNC immediately reconstructs the circuit domain service UM RLC and initializes the circuit domain service UM-LC COUNT-C HFN 20 bits with the latest circuit domain START;

Step 3035: After receiving the radio bearer reconfiguration message and completing the message validity check, the UE sends the CRLC_CONFIG_Req to the UM RLC entity of the circuit domain service, and is used to reconstruct the circuit domain service UM RLC and initialize the circuit with the latest circuit domain START. The COUNT-C HFN of the domain service UM RLC is 20 bits high;

Step 3040: Data encryption, decryption, and transceiving of the circuit domain UM RLC service can be performed normally between the UE and the RNC.

Step 3050: The UE sends a radio bearer reconfiguration complete message to the RNC.

In this embodiment of the present invention, a service reconfiguration system of a circuit domain UM RLC mode in a mobile communication system is provided, which is characterized in that:

For the above embodiments, please refer to FIG. 4, which describes the UM in the process of "Relocation of SRNS (Serving Radio Network Subsystem) related to UE" Message exchange process of UE/source RNC (SRNC) / target RNC (TRNC) /CN (core network) of RLC circuit domain service:

Step 4010: The source RNC initiates a message relocation request (RANAP: RELOCATION REQUIRED) to the core network (CN, Core Network), where the last circuit domain and the packet domain START of the UE are carried, and the CN sends a relocation request to the target RNC (RANAP: RELOCATION REQUEST), forwarding the latest circuit domain and packet domain START of the UE sent by the source RNC to the target RNC;

Step 4020: The target RNC allocates radio resources, including creating a radio transmission bearer of each service, allocating RNC user plane resources (MAC, RLC, PDCP, IUUP), etc., wherein the COUNT-initial of the circuit domain UM RLC service is initialized with the last circuit domain START of the UE. C HFN high 20 bits for the circuit domain START;

Step 4030: The target RNC assembles the locally allocated radio resource attribute and the identifier new U-RNTI in the UE target RNC into a transparent container of the source RNC through the cell target RNC (RRC: RADIO BEARER RECONFIGURATION). Target RNC to Source RNC Transparent Container) is forwarded to the source RNC via CN forwarding with a message relocation request response (RANAP: RELOCATION REQUEST ACKNOWLEDGE) and a relocation command (RANAP: RELOCATION COMMAND);

Step 4040: The source RNC extracts a radio bearer reconfiguration message, and then sends the message to the UE, where the message includes a new U-RNTI.

Step 4050: After receiving the radio bearer reconfiguration message and completing the message validity check, the UE performs L1 synchronization between the UE and the target RNC radio link.

Step 4060: After the UE L1 is successfully synchronized, the UE initializes the COUNT-C HFN of the circuit domain UM RLC service by 20 bits with the latest circuit domain START;

Step 4070: After detecting that the UE successfully completes the L1 synchronization, the target RNC notifies the CN relocation detection (RANAP: RELOCATION DETECT); Step 4080: Data encryption, decryption, and transceiving of the circuit domain UM RLC service can be performed normally between the UE and the target RNC.

Step 4090: The UE sends a radio bearer reconfiguration complete message to the target RNC.

Step 4100: the target RNC informs the CN relocation complete (RANAP: RELOCATION COMPLETE) ₀

For the above embodiments, please refer to FIG. 5, which describes the processing process of the UE in the UM RLC circuit domain service reconfiguration process:

Step 5010: The UE receives the radio bearer reconfiguration message of the RNC initiating the circuit domain service, and reconfigures the circuit domain service and both are UM RLC configurations.

Step 5020: Check whether the service reconfiguration message carries the message Downlink counter synchronization info or New U-RNTI. If not, the circuit domain UM RLC does not need to be reconstructed, and the process ends.

Step 5030: Check whether the service reconfiguration message carries the Activation Time; carry the circuit domain UM RLC after the Activation Time and initialize the COUNT-C HFN of the circuit domain UM RLC service with the latest circuit domain START;

Step 5040: Check whether the service reconfiguration message carries the physical channel related cell. If the carrier indicates that the UE and the target radio link perform L1 synchronization, the L1 synchronization succeeds in rebuilding the circuit domain UM RLC and initializing the circuit domain UM with the latest circuit domain START. The COUNT-C HFN of the RLC business is 20 digits high;

Step 5050: The UE rebuilds the circuit domain UM RLC and uses the latest circuit domain START initialization circuit domain UM RLC service COUNT-C HFN high 20 bits;

Step 5060: The UE continues the UM RLC of the circuit domain service, and includes performing uplink and downlink data encryption and decryption and transceiving of the UM RLC.

For the above embodiments, more specifically, please refer to FIG. 6, which describes the processing of the RNC in the UM RLC circuit domain service reconfiguration process: Step 6010: The RNC initiates a radio bearer reconfiguration message of the circuit domain service, reconfigures the circuit domain service, and both are UM RLC configurations.

Step 6020: Check whether the service reconfiguration message carries the message Downlink counter synchronization info or New U-RNTI. If not, the circuit domain UM RLC does not need to be reconstructed, and the process ends.

Step 6030: Check whether the service reconfiguration message carries the Activation Time; carry the circuit domain UM RLC after the Activation Time and initialize the COUNT-C HFN of the circuit domain UM RLC service with the latest circuit domain START;

Step 6040: Check whether the service reconfiguration message carries the physical channel related cell. If the carrier indicates that the UE and the target radio link perform L1 synchronization, the L1 synchronization succeeds in rebuilding the circuit domain UM RLC and initializing the circuit domain UM with the latest circuit domain START. The COUNT-C HFN of the RLC business is 20 digits high;

Step 6050: RNC reconstructs the circuit domain UM RLC and uses the most recent circuit domain START initialization circuit domain UM-LC COUNT of the UM-LC HFN 20 bits;

Step 6060: The RNC continues the UM RLC of the circuit domain service, and includes performing uplink and downlink data encryption and decryption and transceiving of the UM RLC.

It can be seen from the above specific embodiments of the present invention that the service reconfiguration method and system of the circuit domain UM RLC mode in the mobile communication system provided by the present invention provides a data encryption execution of the circuit domain UM RLC mode service reconfiguration process. The method, which provides a new circuit domain, reduces the delay and discontinuity of service data before and after service reconfiguration in the circuit domain UM RLC mode, and improves the service quality.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent flow transformation made by the specification and the drawings of the present invention may be directly or indirectly applied to other related In the technical field, the same is included in the patent protection scope of the present invention. Industrial applicability

The service reconfiguration method and system of the circuit domain UM RLC mode in the mobile communication system provided by the present invention provide a data encryption execution process of the circuit domain UM RLC mode service reconfiguration process and a processing process of the UM RLC uplink and downlink data, which are reduced. The delay and interruption time of service data before and after service reconfiguration in the circuit domain UM RLC mode improves the service quality.

Claims

Claim

A service reconfiguration method for a circuit domain UM RLC mode in a mobile communication system, comprising:

Al, a radio network controller (RNC) initiates a circuit domain radio resource control (RRC) reconfiguration message, where the message includes an activation time (Activation Time) cell, and a downlink counter synchronization information (Downlink counter synchronization info) cell And one of the new U-RNTI (New U-RNTI) cells;

Bl, the UM RLC entity of the RNC circuit domain reconstructs the circuit domain service UM RLC according to the RRC reconfiguration message, and initializes the ciphering counter superframe number of the circuit domain service UM RLC according to the latest circuit domain initial value (START) (COUNT- C HFN ) 20 high.

2. The method according to claim 1, wherein in the step B1, the RNC sends a radio link control entity configuration message (CRLC_CONFIG_Req) to the UM RLC entity of the circuit domain, and the UM RLC entity of the RNC circuit domain according to the RRC The Activation Time cell in the reconfiguration message rebuilds the circuit domain service UM RLC when the synchronization configuration takes effect.

3. The method according to claim 1, wherein in the step B1, the method comprises:

A2, the user equipment (UE) receives the RRC reconfiguration message, where the message includes an Activation Time cell, and one of a Downlink counter synchronization info cell and a New U-RNTI cell; After receiving the RRC reconfiguration message, the UE checks the validity of the RRC reconfiguration message. If the UE is legal, the UM RLC entity of the UE circuit domain reestablishes the circuit domain service UM RLC according to the RRC reconfiguration message, and according to the latest The primary circuit domain START information initializes the COUNT-C HFN high 20 bits of the circuit domain service UM RLC.

5. The method according to claim 4, wherein in the step B2, after receiving the RRC reconfiguration message and checking its validity, the UE sends a CRLC_CONFIG_Req to the UM RLC entity of the circuit domain, and the UM of the UE circuit domain. The RLC entity re-establishes the circuit domain service UM RLC when the synchronization configuration takes effect according to the Activation Time cell in the RRC reconfiguration message.

6. The method of claim 4, wherein in the step B2, the method comprises:

B21. The UE receives the RRC reconfiguration message.

7. A circuit domain UM RLC mode service reconfiguration system in a mobile communication system, comprising:

An RNC, configured to initiate a circuit domain radio resource control (RRC) reconfiguration message, where the message includes an Activation Time cell, and one of a Downlink counter synchronization info cell and a New U-RNTI cell;

The UE is configured to receive an RRC reconfiguration message, and check the validity of the RRC reconfiguration message, and if yes, send the RRC reconfiguration message to the UM RLC entity of the UE circuit domain; The UM RLC entity of the UE circuit domain is configured to reconstruct the circuit domain service UM RLC according to the RRC reconfiguration message, and initialize the COUNT-C HFN high 20 bits of the circuit domain service UM RLC according to the latest circuit domain START information.

8. A service domain reconfiguration method for a circuit domain UM RLC mode in a mobile communication system, comprising:

Performing L1 synchronization between B3, RNC and UE;

9. The method of claim 8, wherein in the step B3, the RNC sends CRLC_CONFIG_Req to the UM RLC entity of the circuit domain after the completion of synchronization with the target radio link, and the RNC reconstructs the circuit domain service UM RLC.

10. The method of claim 8, wherein in the step C3, the RNC sends CRLC_CONFIG_Req to the UM RLC entity of the circuit domain after the completion of synchronization with the target radio link, and the RNC reconstructs the circuit domain service UM RLC.

The method of claim 8, wherein in the step C3, the method comprises:

12. A service reconfiguration method for a circuit domain UM RLC mode in a mobile communication system, comprising: A4, the user equipment (UE) receives the RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell; B4, performing L1 synchronization between the UE and the RNC;

The method of claim 12, wherein in the step C4, the method includes: C41, the UE receives the RRC reconfiguration message;

14. A circuit domain UM RLC mode service reconfiguration system in a mobile communication system, comprising:

15. A service domain reconfiguration method in a circuit domain UM RLC mode in a mobile communication system, comprising:

The method according to claim 15, wherein in the step B5, after the RNC initiates a circuit domain RRC reconfiguration message, if there is no physical channel related cell in the RRC reconfiguration message, The UE does not perform new L1 synchronization with the target radio link, and the RNC immediately sends a CRLC_CONFIG_Req to the UM RLC entity of the RNC circuit domain, wherein the CRLC_CONFIG_Req includes the most recent circuit domain START information.

The method of claim 15, wherein in the step B5, the method includes: B51, the RNC checking whether the RRC reconfiguration message carries a Downlink counter synchronization info cell or a New U-RNTI cell, if not, Then end, no Bay ¹ J, perform the next step;

18. A service domain reconfiguration method in a circuit domain UM RLC mode in a mobile communication system, comprising:

A6. The user equipment (UE) receives the RRC reconfiguration message, where the message includes one of a Downlink counter synchronization info cell and a New U-RNTI cell.

B6. The UE receives the RRC reconfiguration message, and the UM RLC entity of the UE circuit domain re-establishes the circuit domain service UM RLC according to the RRC reconfiguration message, and according to the latest circuit domain START The information initializes the COUNT-C HFN of the circuit domain service UM RLC by 20 bits.

The method of claim 18, wherein in the step B6, the method includes: B61, the UE receives the RRC reconfiguration message;

20. A circuit domain UM RLC mode service reconfiguration system in a mobile communication system, comprising: