WO2011113396A2

WO2011113396A2 - Method, device and system for mobility management

Info

Publication number: WO2011113396A2
Application number: PCT/CN2011/073432
Authority: WO
Inventors: 王春声; 段忠毅; 童莉莉
Original assignee: 华为技术有限公司
Priority date: 2011-04-28
Filing date: 2011-04-28
Publication date: 2011-09-22
Also published as: CN102293026A; WO2011113396A3; CN102293026B

Abstract

A method for mobility management includes: initiating a flow of accompany migration or handover to a target cell controlled by a primary Radio Network Controller (RNC) of a Drift Radio Network Controller (DRNC) (101); if the target cell controlled by the primary RNC has switched to a spare RNC of DRNC, receiving a failure acknowledgement returned from the primary RNC, and said failure acknowledgement carrying information of the target cell controlled by the spare RNC or indication information for obtaining information of the target cell controlled by spare RNC (102); initiating accompany migration or handover to the target cell controlled by said spare RNC according to said target cell information or the indication information (103). The present invention also provides a network device, an RNC and a communication system.

Description

Mobility management method, device and system

The present invention relates to the field of communications technologies, and in particular, to a mobility management method, apparatus, and system. Background technique

The RNC (Radio Network Controller) cluster system includes a primary RNC and a standby RNC. The base station (NodeB) is simultaneously connected to the primary RNC and the standby RNC. The interface between the base station and the RNC is called an Iub interface, the base station and the RNC. The link between the links is called the Iub transport link. The base station initiates a registration request to the primary RNC, and then selects one RNC access from the primary RNC and the standby RNC according to the registration response returned by the primary RNC. For example, when the primary RNC returns a response message of successful registration, the base station selects the primary use. The RNC performs access; when the primary RNC returns a response message that the registration fails, the base station selects the standby RNC for access. In order to improve the reliability of the RNC and Iub transmission links, when the RNC connected to the base station or the corresponding Iub transmission link fails, the base station can switch to another RNC.

According to the logical function, the RNC cluster system can be used as a drift radio network controller (DRNC,

The Drift Radio Network Controller can also be used as a Serving Radio Network Controller (SRNC). Among them, both DRNC and SRNC are for a specific terminal.

In the prior art, in the process of initiating the user to accompany the migration or handover to the target cell under the control of the DRNC, if the target cell has been switched from the primary RNC in the DRNC to the standby RNC in the DRNC, the accompanying migration or The switch failed.

Summary of the invention

Embodiments of the present invention provide a mobility management method, apparatus, and system, which can improve the success rate accompanying migration or handover.

In one aspect, a mobility management method is provided, including:

Initiating a process of migrating or switching to a target cell under the control of the primary RNC in the DRNC; if the target cell under the control of the primary RNC has switched to the standby RNC in the DRNC, receiving the failure of returning by the primary RNC In response, the failure response carries the target cell information under the control of the standby RNC or the indication information used to acquire the target cell information under the control of the standby RNC; Accompanying migration or handover to a target cell under the control of the standby RNC according to the target cell information or indication information.

In another aspect, a mobility management method is provided, including:

Receiving a request sent by the network device to migrate or switch to a target cell under the control of the primary RNC in the DRNC;

If the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, returning a failure response to the network device, where the failure response carries the target cell information under the control of the standby RNC or is used for acquiring The indication information of the target cell information under the control of the standby RNC.

In another aspect, a network device is provided, including:

a first initiating unit, configured to initiate a process of migrating or switching to a target cell under control of the primary RNC in the DRNC;

a receiving unit, configured to receive a failure response returned by the primary RNC if the target cell under the control of the primary RNC has been switched to a standby RNC in the DRNC, where the failure response carries a target under the control of the standby RNC Cell information or indication information for acquiring target cell information under the control of the standby RNC;

And a second initiating unit, configured to initiate a companion migration or handover to the target cell under the control of the standby RNC according to the target cell information or the indication information.

In another aspect, a radio network controller RNC is provided, including:

a receiving unit, configured to receive a request sent by the network device to migrate or switch to a target cell under the control of the primary RNC in the DRNC;

a response unit, configured to: if the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, return a failure response to the network device, where the failure response carries the target cell under the control of the standby RNC Information or indication information for acquiring target cell information under the control of the standby RNC.

In another aspect, a communication system is provided, including an RNC and a network device provided by an embodiment of the present invention.

In the process of the target cell with the migration or switching to the control of the DRNC, the embodiment of the present invention carries the target cell information under the control of the standby RNC in the DRNC or the target cell under the control of the standby RNC in the returned failure response. Information indicating information, such that the target cell When the active RNC in the DRNC is switched to the standby RNC, the device that initiates the migration or handover can acquire the target cell information under the control of the standby RNC, thereby improving the success rate accompanying the migration or handover. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

1 is a flowchart of a mobility management method according to Embodiment 1 of the present invention;

2 is a flowchart of a mobility management method according to Embodiment 2 of the present invention;

3 is a flowchart of a method in a handover scenario according to Embodiment 3 of the present invention;

4 is a flowchart of a method in a companion migration scenario according to Embodiment 4 of the present invention;

FIG. 5 is a flowchart of a method in a different system switching scenario according to Embodiment 5 of the present invention; FIG.

6 is a flowchart of a method in a different system switching scenario according to Embodiment 6 of the present invention;

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of an RNC according to an embodiment of the present invention.

detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiments of the present invention provide a mobility management method, apparatus, and system. The details are explained below. Embodiment 1

This embodiment will be described from the perspective of a network device, which may be a service RNC (hereinafter referred to as SRNC) or a base station controller (BSC, Base Station Controller).

A mobility management method, including:

Initiating a flow of the target cell under the control of the primary RNC in the DRNC; or if the target cell under the control of the primary RNC has switched to the standby RNC in the DRNC, receiving the failure response returned by the primary RNC, Wherein the failure response carries the control under the standby RNC Target cell information or indication information for acquiring target cell information under the control of the standby RNC; initiating migration or handover to the target cell under the control of the standby RNC according to the target cell information or the indication information.

It can be understood that the DRNC is an RNC cluster system, including a primary RNC and a standby RNC. Referring to Figure 1, the specific process can be as follows:

101. Initiating a process for causing a user to migrate or switch to a target cell under the control of the primary RNC in the DRNC;

For example, the details can be as follows:

The SRNC sends a Radio Link Setup Request message to the primary RNC in the DRNC; or

The SRNC sends a companion migration request accompanied by the migration to the target cell under the control of the primary RNC to the primary RNC in the DRNC through the core network (CN, Core Network) device; for example, the SRNC may send a migration request message (RELOCATION REQUIRED) to the core network. The device, and then the core network device sends a RELOCATION REQUEST message to the primary RNC in the DRNC; or

The BSC sends a different system handover request to the target cell in the DRNC under the control of the primary RNC through the core network device. For example, the BSC may send a handover request message (HANDOVER REQUIRED) to the core network device, and the core network device A migration request message (RELOCATION REQUEST) is sent to the primary RNC in the DRNC.

102. If the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, receiving a failure response returned by the primary RNC, where the failure response carries the target cell information under the control of the standby RNC, or is carried for acquisition. The indication information of the target cell information under the control of the standby RNC.

The indication information, for example, may be a cause value. When the DRNC neighboring area is configured on the SRNC or the BSC side, the cell information under the control of the primary RNC of the DRNC and the cell information under the control of the standby RNC need to be configured at the same time, and Corresponding relationship between the cause value and the cell information under the control of the standby RNC is preset on the SRNC or the BSC side, for example, a mapping table of the cause value and the cell information under the control of the standby RNC is stored on the SRNC or the BSC side, and the like, When switching through the Iur interface or accompanying the migration, if the DRNC returns the cause value, the SRNC or the BSC may initiate the target cell under the control of the standby RNC according to the cell information under the control of the standby RNC in its own (ie, SRNC) configuration. Cut Swap and accompany migration.

The process of the target cell in the DRNC is controlled by the active RNC. For example, the following may be specifically: (1) If the step 101 is specifically: the SRNC sends a radio link setup request message to the active RNC in the DRNC; , that is, the failure response returned by the receiving primary RNC may be:

The SRNC receives the radio link setup Fail message returned by the primary RNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC, or the radio link setup failure message carries The indication information of the target cell information under the control of the standby RNC, for example, the reason value for acquiring the target cell information under the control of the standby RNC.

(2) If step 101 is specifically: SRNC sends the accompanying migration to the primary device through the core network device

The companion migration request of the target cell in the RNC is controlled to the primary RNC in the DRNC. In step 102, the failure response returned by the receiving primary RNC is specifically:

The SRNC receives the migration preparation failure response returned by the primary RNC through the core network device, where the migration preparation failure response carries the target cell information under the control of the standby RNC, or carries the indication information used to obtain the target cell information under the control of the standby RNC. For example, a cause value for acquiring target cell information under the control of the standby RNC.

For example, the primary RNC may send a migration failure message (RELOCATIO FAILURE) to the core network device, and then the core network device sends a RELOCATION PREPARATION FAILURE message to the SRNC, where the migration failure message and the migration preparation failure message are included. Each carries the target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC.

(3) If the step 101 is specifically: the BSC sends a different system handover request to the target cell in the DRNC under the control of the primary RNC through the core network device to the primary RNC in the DRNC, then in step 102, the failure of receiving the primary RNC is returned. The response is specifically:

The BSC receives the different system handover failure response returned by the primary RNC through the core network device, where the different system handover failure response carries the target cell information under the control of the standby RNC, or carries the information about the target cell under the control of the standby RNC. The indication information, for example, a reason value for acquiring target cell information under the control of the standby RNC.

For example, the primary RNC can send a migration failure message (RELOCATIO FAILURE) to the core. The network device, and then the core network device sends a handover request failure message (HANDOVER_REQUIRED_REJECT) to the BSC; wherein the migration failure message and the handover request failure message both carry the target cell information under the standby RNC control or are used to obtain the standby RNC control. The indication information of the target cell information.

103. Initiate a companion migration or handover to the standby RNC cell according to the received target cell information or indication information.

For example, if the primary RNC returns a failure response carrying the target cell information under the control of the standby RNC, the SRNC or the BSC may initiate a companion migration or handover to the alternate RNC cell according to the alternate RNC cell information; for example, if the primary RNC returns After receiving the failure response of the indication information for acquiring the information of the standby RNC, the SRNC obtains the target cell information under the control of the standby RNC from the configuration information of the self (ie, the SRNC or the BSC) after receiving the indication information, according to the target cell. The information initiates a companion migration or handover to the target cell under the control of the standby RNC.

As can be seen from the above, in the process of the target cell with the migration or switching to the DRNC control, the present embodiment carries the target cell information under the standby RNC control in the DRNC or is used to obtain the standby RNC control in the returned failure response. The indication information of the target cell information, so that when the target cell has been switched from the primary RNC in the DRNC to the standby RNC, the device that initiates the migration or handover can acquire the target cell information under the control of the standby RNC, thereby improving the accompanying The success rate of migration or switching. Embodiment 2

This embodiment will be described from the perspective of the primary RNC in the DRNC.

A mobility management method, including:

If the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, a failure response is returned to the network device, where the failure response carries the target cell information under the control of the standby RNC or is used to obtain the standby RNC control. The indication information of the target cell information.

It can be understood that the DRNC is an RNC cluster system, including a primary RNC and a standby RNC. As shown in Figure 2, the specific process can be as follows:

201. Receive, by the network device, a request for the user to migrate or switch to a target cell under the control of the primary RNC in the DRNC. For example, the details can be as follows: Receiving a radio link setup request message (Radio Link Setup Request) sent by the SRNC; or

Receiving a companion migration request sent by the SRNC through the core network device along with the target cell under the control of the primary RNC in the DRNC; for example, the SRNC may send a RELOCATION REQUIRED message to the core network device, and then the core network device Sending a migration request message (RELOCATION REQUEST) to the primary RNC in the DRNC according to the migration request message; or

Receiving a different system handover request that is sent by the BSC to the target cell under the control of the primary RNC in the DRNC; for example, the BSC may send a handover request message (HANDOVER REQUIRED) to the core network device, and the core network device sends a migration request message (RELOCATION) REQUEST) to the primary RNC in the DRNC.

202. If the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, return a failure response to the network device that initiates the migration or handover procedure, such as an SRNC or a BSC, where the failure response carries the standby RNC. The target cell information under control, or carrying indication information for acquiring target cell information under the control of the standby RNC.

The indication information, for example, may be a cause value. When the DRNC neighboring area is configured on the SRNC or the BSC side, the cell information under the control of the primary RNC of the DRNC and the cell information under the control of the standby RNC need to be configured at the same time, and Corresponding relationship between the cause value and the cell information under the control of the standby RNC needs to be preset on the SRNC or the BSC side, for example, a mapping table of the cause value and the cell information under the control of the standby RNC is stored on the SRNC or the BSC side, and the like. When the DRNC returns the cause value, the SRNC or the BSC may initiate the cell information under the control of the standby RNC in the configuration of the own (ie, the SRNC or the BSC) to the standby RNC under the control of the IRN interface. Handover and accompanying migration of the target cell. The process of the target cell in the DRNC is controlled by the primary RNC. For example, the following may be specifically: (1) If the step 201 is specifically: receiving the radio link setup request message sent by the SRNC, step 202 returns a failure response. For a network device, it can be:

Returning a radio link setup failure message to the SRNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC, or carries the target for acquiring the standby RNC control The indication information of the cell information.

(2) If the step 201 is specifically: receiving the companion migration request sent by the SRNC through the core network device and moving to the target cell under the control of the primary RNC in the DRNC, then in step 202, the failure response message is returned to the network device. For:

The radio link setup failure message is returned to the SRNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC, or carries the indication information for acquiring the target cell information under the control of the standby RNC.

(3) If the step 201 is specifically: receiving the companion migration request sent by the serving RNC through the core network device and moving to the target cell under the control of the primary RNC in the DRNC, then in step 202, returning the failure response carrying the indication information The message to SRNC can specifically be:

The migration preparation failure response is returned to the serving RNC by the core network device, where the migration preparation fails. The response carries the target cell information under the control of the standby RNC, or carries the indication information for acquiring the target cell information under the control of the standby RNC.

For example, the primary RNC may send a migration failure message (RELOCATIO FAILURE) to the core network device, and then the core network device sends a handover request failure message (HANDOVER_REQU IRED_REJECT) to the BSC; wherein, the migration failure message and the handover request failure message are both The target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC is carried.

As can be seen from the above, in the process of the target cell with the migration or switching to the DRNC control, the present embodiment carries the target cell information under the standby RNC control in the DRNC or is used to obtain the standby RNC control in the returned failure response. The indication information of the target cell information, so that when the target cell has been switched from the primary RNC in the DRNC to the standby RNC, the device that initiates the migration or handover can acquire the target cell information under the control of the standby RNC, thereby improving the accompanying The success rate of migration or switching. Embodiment 3 The methods described in the first and second embodiments will be described in detail below by way of examples III to 6.

In this embodiment, the SRNC lur port switching scenario will be taken as an example for description. Referring to Figure 3, the specific process can be as follows:

301. SRNC sends a radio link setup request message through the lur port (Radio Link Setup

Request) To the primary RNC in the DRNC, indicating that the user needs to switch to the primary use in the DRNC.

Target cell under RNC control.

302. After the primary RNC in the DRNC receives the radio link setup request message, if

If the target cell under the control of the primary RNC in the DRNC has been switched to the standby RNC, the primary RNC returns a radio link setup failure (Radio Link Setup Fail) to the SRNC, where the radio link setup failure message is carried. The target cell information under the control of the standby RNC.

303. After receiving the radio link setup failure message, the SRNC sends the radio link setup request message to the standby RNC in the DRNC again through the lur port according to the target cell information under the control of the standby RNC carried therein, thereby initiating the lur port again. Switch.

As shown in the above, in the process of the IUR port switching to the target cell under the DRNC control, the target cell information under the standby RNC control in the DRNC is carried in the returned radio link setup failure message, so that When the target cell has been switched from the primary RNC in the DRNC to the standby RNC, the device that initiates the handover can obtain the target cell information under the control of the standby RNC, so that the success rate of the handover can be improved.

Embodiment 4

In this embodiment, the accompanying migration scenario will be described as an example. Referring to Figure 4, the specific process can be: 3⁄4 under:

401. The SRNC sends a RELOCATION REQUIRED message to the core network device through the Iu interface, indicating that the user needs to be migrated to the target cell under the control of the primary RNC in the DRNC.

402. After receiving the migration request message, the core network device sends a RELOC ATION REQUEST message to the primary RNC in the DRNC.

403. After the primary RNC in the DRNC receives the migration request message sent by the core network device, if the primary RNC cell in the DRNC has been switched to the standby RNC cell, the primary RNC passes the Iu. The port returns a migration failure message (RELOCATIO FAILURE) to the core network device, where the migration failure message carries the target cell information under the control of the standby RNC.

404. After receiving the migration failure message returned by the primary RNC, the core network device sends a RELOCATION PREPARATION FAILURE message to the SRNC through the Iu interface, where the migration preparation failure message carries the target cell information under the control of the standby RNC. .

405. After receiving the migration preparation failure message, the SRNC sends a migration request message (RELOCATION REQUIR ED) to the standby RNC through the Iu interface according to the target cell information under the control of the standby RNC carried in the SRNC, and initiates the migration to the standby RNC again. The flow of the cell under control.

As can be seen from the above, in the process of the user moving to the target cell under the control of the DRNC, the target cell information under the control of the standby RNC in the DRNC is carried in the message of the returned Iu interface, so that the target is When the cell has been switched from the primary RNC to the standby RNC in the DRNC, the SRNC that initiates the migration can acquire the target cell information under the control of the standby RNC, thereby improving the success rate of the accompanying migration. Embodiment 5

In this embodiment, an example of a different system switching scenario will be described. See Figure 3, the specific process can be: 3⁄4 mouth:

501. The BSC sends a handover request message (HANDOVER REQUIRED) to the core network device, indicating that the user needs to be handed over to the target cell under the control of the primary RNC in the DRNC.

502. After receiving the handover request message, the core network device sends a migration request message (RELOCATION REQUEST) to the primary RNC in the DRNC through the Iu interface.

503. After the primary RNC in the DRNC receives the migration request message sent by the core network device, if the target cell under the control of the primary RNC in the DRNC has been switched to the standby RNC, the primary RNC is returned through the Iu interface. The migration failure message (RELOCATIO FAILURE) is sent to the core network device, where the migration failure message carries the target cell information under the control of the standby RNC.

504. After receiving the migration failure message returned by the primary RNC, the core network device sends a handover request rejection message (HANDOVER_REQUIRED_REJECT) to the BSC, where the handover request rejection message carries the target cell information under the control of the standby RNC.

505. After receiving the handover request rejection message, the BSC sends a handover request message (HANDOVER REQUIRED) to the standby R according to the target cell information under the control of the standby RNC carried therein. The NC, again, initiates a process of switching the user's different system to the target cell under the standby RNC control.

As can be seen from the above, in the process of switching the user-specific system to the target cell under the DRNC control, the target cell information under the control of the standby RNC in the DRNC is carried in the handover preparation reject message returned to the BSC. When the target cell has been switched from the primary RNC to the standby RNC in the DRNC, the BSC that initiates the different system handover can acquire the target cell information under the control of the standby RNC, thereby improving the success rate of the handover of the associated system. Embodiment 6

In addition to carrying the target cell information under the control of the standby RNC in the failure response returned by the primary RNC in the DRNC, in order to save the bandwidth occupied by the failed response, the target cell information under the control of the standby RNC may not be carried, but may be carried. An indication information for acquiring target cell information under the control of the standby RNC, for example, a special cause value, after obtaining the cause value, the SRNC or the BSC may obtain the target cell information under the control of the corresponding standby RNC according to the cause value. .

First, when the DRNC neighboring cell is configured on the SRNC or the BSC side, the cell information under the control of the primary RNC of the DRNC and the cell information under the control of the standby RNC can be configured at the same time, and the cause value and the pre-set value can be preset on the SRNC or BSC side. The mapping relationship between the cell information under the control of the standby RNC, for example, the mapping table of the cell information under the control of the standby RNC is stored on the SRNC or the BSC side, see Table 1.

According to Table 1, when the handover or the accompanying migration fails, the DRNC returns the failure cause value X, indicating that the failure is caused by the base station switching between the primary RNC and the standby RNC. After receiving the cause value, the SRNC determines the cause value. For example, the cell information A1 under the control of the standby RNC can be obtained through the query mapping table, and the process of causing the user to accompany the migration or handover to the standby RNC cell is re-initiated according to the cell information A1 under the control of the standby RNC.

Take the Iur interface switching scenario as an example. See Figure 6. The specific process can be as follows:

601. The SRNC sends a radio link setup request message to the primary DRNC through the Iur interface. 602. After receiving the radio link setup request message, the primary RNC in the DRNC returns to the radio link establishment if the target cell under the control of the primary RNC in the DRNC has been switched to the standby RNC. The failure message is sent to the SRNC, where the radio link setup failure message carries the cause value X.

603. After receiving the radio link setup failure message, the SRNC obtains the target cell information under the control of the standby RNC according to the cause value X carried therein.

604. The SRNC sends a radio link setup request message to the standby RNC in the DRNC through the Iur interface according to the obtained target cell information under the control of the standby RNC, and initiates the Iur port switch again.

It should be noted that the above description is only taken as an example of the switching scenario. It should be understood that the implementation process is similar to that of the accompanying migration scenario and the different system switching scenario. For specific message types, refer to Embodiments 4 and 5. This will not be repeated here.

As can be seen from the above, in the process of causing the user to migrate or switch to the target cell under the control of the DRNC, the present embodiment carries the failure cause value in the returned failure response, so that when the target cell has been used from the DRNC When the RNC is switched to the standby RNC, the SRNC or the BSC can acquire the target cell information under the control of the standby RNC according to the cause value, thereby improving the success rate accompanying the migration or handover. In addition, bandwidth resources can be effectively saved by carrying the failure cause value in the failure response instead of the target cell information under the specific standby RNC control. Example VII.

In order to better implement the above method, the embodiment of the present invention further provides a network device. For example, the network device may be an SRNC or a BSC. As shown in FIG. 7, the network device includes a first initiating unit 701 and a receiving unit. 702 and a second initiating unit 703;

a first initiating unit 701, configured to initiate a process of migrating or switching to a target cell under control of the primary RNC in the DRNC;

The receiving unit 702 is configured to: if the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, receive a failure response returned by the primary RNC, where the failure response carries the target cell information under the control of the standby RNC, Or carrying indication information for acquiring target cell information under the control of the standby RNC;

The indication information, for example, may be a cause value, and the DRNC is configured on the SRNC or BSC side. In the neighboring area, the cell information under the control of the primary RNC of the DRNC and the cell information under the control of the standby RNC need to be configured at the same time, and the indication information (such as the cause value) and the standby RNC control need to be preset on the SRNC or BSC side. Corresponding relationship of the cell information, such that when the DRC returns the cause value through the Iur interface, the SRNC or the BSC can initiate the user to switch according to the target cell information under the standby RNC control in the configuration. Or the process of migrating to the target cell under the control of the standby RNC.

The second initiating unit 703 is configured to initiate migration or handover to the target cell under the control of the standby RNC according to the target cell information or the indication information received by the receiving unit 702.

For example, if the primary RNC returns a failure response carrying the target cell information under the control of the standby RNC, the SRNC or the BSC may initiate a companion migration or handover to the secondary RNC cell according to the target cell information under the control of the standby RNC; for example, If the primary RNC returns a failure response carrying the indication information for acquiring the target cell information under the control of the standby RNC, the SRNC or the BSC obtains the standby RNC from the configuration information of the own (ie, the SRNC or the BSC) after receiving the indication information. The target cell information under control initiates the accompanying migration or handover to the target cell under the control of the standby RNC according to the target cell information under the control of the standby RNC.

The failure response corresponds to the process initiated by the SRNC or the BSC to migrate or switch to the target cell under the control of the primary RNC in the DRNC. For example, the specifics may be as follows:

(1) Iur port switching scenario

The first initiating unit 701 may be configured to send a radio link setup request message to the primary RNC in the DRNC to indicate that the user needs to be handed over to the target cell under the control of the primary RNC in the DRNC.

At this time, the receiving unit 702 may be configured to receive a radio link setup failure (Radio Link Setup Fail) returned by the primary RNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC or is used for Obtaining indication information of the target cell information under the control of the standby RNC.

For details, refer to the foregoing method embodiments, and details are not described herein again.

(2) accompanying the migration scenario

The first initiating unit 701 may be configured to send, by the core network device, a companion migration request that is accompanied by the migration to the target cell under the control of the primary RNC to the primary RNC in the DRNC, to indicate that the user needs to be migrated to the primary RNC in the DRNC. Target cell under control; For example, the first initiating unit 701 may send a migration request message (RELOCATION REQUIRED) to the core network device, and then the core network device sends a migration request message (RELOCATION REQUEST) to the primary RNC in the DRNC.

At this time, the receiving unit 702 may be configured to receive a migration preparation failure response returned by the primary RNC through the core network device, where the migration preparation failure response carries the target cell information under the control of the standby RNC or is used to acquire the standby RNC. The indication information of the target cell information under control.

For example, the primary RNC may send a migration failure message (RELOCATIO FAILURE) to the core network device, and then the core network device sends a RELOCATION PREPARATION FAILURE message to the receiving unit 702, where the migration failure message and the migration preparation fails. The message carries the target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC.

(3) Different system switching scenarios

The first initiating unit 701 may be configured to send, by using the core network device, a different system switching request that is switched to the target cell under the control of the primary RNC to the primary RNC in the DRNC, indicating that the user different system needs to be switched to the primary in the DRNC. In the target cell under the control of the RNC;

For example, the first initiating unit 701 may send a handover request message (HANDOVER REQUIRED) to the core network device, and the core network device sends a migration request message (RELOCATION REQUEST) to the primary RNC in the DRNC, as described in the foregoing method embodiment, where For example, the receiving unit 702 can be configured to receive a different system handover failure response returned by the primary RNC through the core network device, where the different system handover failure response carries the target cell information under the control of the standby RNC. The indication information of the target cell information under the control of the standby RNC is obtained.

For example, the primary RNC may send a migration failure message (RELOCATIO FAILURE) to the core network device, and then the core network device sends a handover request rejection message (HANDOVER REQU IRED REJECT) to the receiving unit 702; wherein the migration failure message and the handover request The failure message carries the target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC.

In the specific implementation, each of the above units may be used as an independent entity, or may be combined in any combination. Implemented as one or several entities, for example, the first initiating unit 701 and the second initiating unit 703 can serve as a unified initiating unit, and the like. For the specific implementation of the above various units, refer to the foregoing embodiments, and details are not described herein again.

It can be seen that, in this embodiment, in the process of causing the user to migrate or switch to the target cell under the DRNC control, the network device acquires the target cell information under the control of the standby RNC in the DRNC carried therein by using the receiving failure response. The indication information of the target cell information under the control of the standby RNC is obtained, so that when the target cell has been switched from the primary RNC in the DRNC to the standby RNC, the success rate accompanying the migration or handover is improved. Example VIII.

Correspondingly, the embodiment of the present invention further provides an RNC, for example, which may be used as a primary RNC in a DRNC in the embodiment of the present invention. For example, the RNC includes a receiving unit 801 and a response unit 802. a request sent by the receiving network device to accompany the migration or handover to the target cell under the control of the primary radio network controller RNC in the drift radio network controller DRNC;

The response unit 802 is configured to: if the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, return a failure response to the network device, where the failure response carries the control under the standby RNC The target cell information or the indication information for acquiring the target cell information under the control of the standby RNC, for example, the reason value for acquiring the target cell information under the control of the standby RNC.

(1) Iur port switching scenario

The receiving unit 801 can be configured to receive a radio link setup request message (Radio Link Setup Request) sent by the SRNC.

The response unit 802 may be configured to return a radio link setup failure message to the SRNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC or the target cell information under the control of the standby RNC. Instructions.

(2) accompanying the migration scenario

The receiving unit 801 may be configured to receive a companion migration request that is sent by the SRNC through the core network device and is related to the target cell under the control of the primary RNC in the DRNC. For example, the SRNC may send a RELOCATION REQUIRED message to the core network device, and then the core network device sends a migration request message (RELOCATION REQUEST) to the receiving unit 801 of the primary RNC in the DRNC.

The response unit 802 is configured to: return, by the core network device, a migration preparation failure response to the SRNC, where the migration preparation failure response carries the target cell information under the control of the standby RNC or the indication information used to acquire the target cell information under the control of the standby RNC .

For example, the response unit 802 may send a migration failure message (RELOCATIO FAILURE) to the core network device, and then send a RELOCATION PREPARATION FAILURE message to the SRNC by the core network device, where the migration failure message and the migration preparation failure message are included. Each carries the target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC.

(3) Different system switching scenarios

The receiving unit 801 is configured to receive a different system switching request that is sent by the base station controller BSC and is switched to the target cell under the control of the primary RNC in the DRNC.

For example, the BSC may send a handover request message (HANDOVER REQUIRED) to the core network device, and the core network device sends a migration request message (RELOCATION REQUEST) to the receiving unit 801 of the primary RNC in the DRNC.

The response unit 802 is configured to: return, by the core network device, a different system handover failure response to the BSC, where the different system handover failure response carries the target cell information under the control of the standby RNC or the target cell information used to obtain the standby RNC control. Instructions.

For example, the response unit 802 may send a migration failure message (RELOCATIO FAILURE) to the core network device, and then send a handover request rejection message (HANDOVER REQUIRED REJECT) to the BSC by the core network device; wherein, the migration failure message and the handover request failure message are Each carries the target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC.

In the specific implementation, the foregoing various units may be implemented as an independent entity, or may be implemented in any combination, and may be implemented as one or several entities. For the specific implementation, refer to the foregoing embodiments, and details are not described herein again. It can be seen that, in this embodiment, in the process of causing the user to migrate or switch to the target cell under the control of the DRNC, the RNC sends a failure response, where the failure response carries the target cell information under the control of the standby RNC in the DRNC or The indication information for acquiring the target cell information under the control of the standby RNC, so that when the target cell has been switched from the primary RNC in the DRNC to the standby RNC, the device that initiates the migration or handover can obtain the control under the standby RNC. Target cell information, thereby increasing the success rate associated with migration or handover. Example IX.

Correspondingly, the embodiment of the present invention further provides a communication system, which includes any network device and RNC provided by the embodiments of the present invention. For example, the following may be as follows:

a network device, configured to initiate a process of migrating or switching to a target cell under the control of the primary RNC in the DRNC, and if the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC, the primary device is received. a failure response returned by the RNC, where the failure response carries the target cell information under the control of the standby RNC or the indication information used to obtain the target cell information under the control of the standby RNC; and the information is initiated according to the received target cell information or indication information. Migration or handover of the target cell under the control of the standby RNC.

The RNC may be used as a primary RNC in the DRNC, and configured to receive a request sent by the network device to migrate or switch to a target cell under the primary RNC control in the DRNC; if the target cell under the control of the primary RNC After the switch to the standby RNC in the DRNC, the failure response is returned to the network device, where the failure response carries the target cell information under the control of the standby RNC or the indication information for acquiring the target cell information under the control of the standby RNC. .

For the specific implementation of the foregoing devices, refer to the foregoing embodiments, and details are not described herein again.

It can be seen that the communication system in this embodiment can carry the target cell information under the control of the standby RNC in the DRNC in the return failure response in the process of causing the user to migrate or switch to the target cell under the control of the DRNC. And obtaining the indication information of the target cell information under the control of the standby RNC, so that when the target cell has been switched from the primary RNC in the DRNC to the standby RNC, the device that initiates the migration or handover can acquire the target under the control of the standby RNC. Cell information, thereby increasing the success rate associated with migration or handover. One of ordinary skill in the art can understand all or part of the various methods of the above embodiments. The program can be executed by instructing related hardware, and the program can be stored in a computer readable storage medium, and the storage medium can include: a read only memory (ROM), a random access memory (RAM, Random Access Memory ) , disk or CD, etc.

The foregoing detailed description of the mobility management method, apparatus, and system provided by the embodiments of the present invention is only for assisting in understanding the method and core idea of the present invention. Meanwhile, for those skilled in the art, The present invention is not limited by the scope of the present invention.

Claims

Rights request

A mobility management method, comprising:

Initiating the flow of the target cell under control of the primary radio network controller in the DRNC in conjunction with the migration or handover to the drift radio network controller;

If the target cell under the control of the primary RNC has been handed over to the standby RNC in the DRNC, receiving a failure response returned by the primary RNC, the failure response carrying target cell information under the control of the standby RNC or used for Obtaining indication information of the target cell information under the control of the standby RNC;

The accompanying migration or handover to the target cell under the control of the standby RNC is initiated according to the target cell information or the indication information.

2. The method according to claim 1, wherein the initiating is accompanied by a migration or switching to

The process of the target cell under the control of the primary RNC in the DRNC includes:

The service RNC sends a radio link setup request message to the primary RNC in the DRNC;

The receiving the failure response returned by the primary RNC includes: receiving, by the serving RNC, a radio link setup failure message returned by the primary RNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC or Instruction letter for obtaining target cell information under the control of the standby RNC

The method according to claim 1, wherein the process of initiating a target cell under the control of the active RNC in the DRNC is accompanied by:

The RNC sends the accompanying migration request accompanying the migration to the target cell under the control of the active RNC to the primary RNC in the DRNC through the core network device;

The receiving the failure response returned by the primary RNC includes: receiving, by the serving RNC, a migration preparation failure response returned by the primary RNC through the core network device, where the migration preparation failure response carries the target cell under the control of the standby RNC Information or indication information for acquiring target cell information under the control of the standby RNC.

4. The method according to claim 1, wherein the initiating is accompanied by a migration or switching to

The base station controller sends, by the core network device, a different system switching request that is switched to the target cell under the control of the primary RNC to the primary RNC in the DRNC;

And the receiving the failure response returned by the primary RNC includes: receiving, by the base station controller, the primary The RNC responds with a different system handover failure returned by the core network device, where the different system handover failure response carries the target cell information under the control of the standby RNC or the indication information used to acquire the target cell information under the control of the standby RNC.

5. A mobility management method, characterized in that:

Receiving a request sent by the network device to migrate or switch to the target radio cell under control of the primary radio network controller in the drift radio network controller DRNC;

The method according to claim 5, wherein the request sent by the receiving network device to migrate to or from the target cell under the control of the active RNC in the DRNC comprises:

Receiving a radio link setup request message sent by the service RNC;

And the returning the failure response to the network device includes: returning a radio link setup failure message to the serving RNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC or is used to obtain the standby RNC control. Indication information of the target cell information under.

The method according to claim 5, wherein the request sent by the receiving network device to migrate to or switch to the target cell under the control of the active RNC in the DRNC includes:

Receiving a companion migration request sent by the RNC through the core network device along with the target cell under the control of the active RNC in the DRNC;

The returning the failure response to the network device includes: returning, by the core network device, a migration preparation failure response to the serving RNC, where the migration preparation failure response carries the target cell information under the control of the standby RNC or is used to obtain the standby RNC control. Indication information of the target cell information under.

The method according to claim 5, wherein the request sent by the receiving network device to migrate to or switch to the target cell under the control of the primary RNC in the DRNC includes:

Receiving a different system switching request sent by the base station controller BSC to the target cell under the control of the primary RNC in the DRNC;

The returning the failure response to the network device includes: returning the different system handover failure response to the BSC by the core network device, where the different system handover failure response carries the target cell information under the control of the standby RNC or is used to acquire the standby RNC. The indication information of the target cell information under control.

9. A network device, comprising:

a first initiating unit, configured to initiate a process of a target cell under the control of the primary radio network controller RNC in the drift radio network controller DRNC;

10. The network device according to claim 9, wherein:

The first initiating unit is further configured to send a radio link setup request message to the active RNC in the DRNC;

The receiving unit is further configured to receive a radio link setup failure message returned by the primary RNC, where the radio link setup failure message carries the target cell information under the control of the standby RNC or is used to acquire a target cell under the control of the standby RNC. Informational indications.

11. The network device according to claim 9, wherein

The first initiating unit is further configured to send, by the core network device, a companion migration request accompanying the migration to the target cell under the control of the primary RNC to the primary RNC in the DRNC;

The receiving unit is further configured to receive a migration preparation failure response returned by the primary RNC through the core network device, where the migration preparation failure response carries the target cell information under the control of the standby RNC or is used to obtain the standby RNC control. The indication information of the target cell information.

12. The network device according to claim 9, wherein

The first initiating unit is further configured to send, by the core network device, a different system switching request that is switched to the target cell under the control of the primary RNC to the primary RNC in the DRNC;

The receiving unit is further configured to receive a different system handover failure response returned by the primary RNC through the core network device, where the different system handover failure response carries the target cell information under the standby RNC control or is used to obtain the standby RNC control The indication information of the target cell information.

13. A radio network controller RNC, comprising:

a receiving unit, configured to receive the accompanying migration sent by the network device or switch to the drift wireless network control a request of the target cell under the control of the primary radio network controller RNC in the DRNC; a response unit, configured to return a failure response if the target cell under the control of the primary RNC has been switched to the standby RNC in the DRNC The network device, the failure response carries the target cell information under the control of the standby RNC or the indication information used to acquire the target cell information under the control of the standby RNC.

14. The RNC of claim 13 wherein:

The receiving unit is further configured to receive a radio link setup request message sent by the serving RNC, where the response unit is further configured to return a radio link setup failure message to the serving RNC, where the radio link setup failure message carries the Target cell information under the control of the standby RNC or indication information for acquiring target cell information under the control of the standby RNC.

15. The RNC of claim 13 wherein:

The receiving unit is further configured to receive a companion migration request that is sent by the serving RNC through the core network device and is related to the target cell under the control of the primary RNC in the DRNC;

The response unit is further configured to: return, by the core network device, a migration preparation failure response to the serving RNC, where the migration preparation failure response carries the target cell information under the control of the standby RNC or the target cell information under the control of the standby RNC Instructions.

16. The RNC of claim 13 wherein:

The receiving unit is further configured to receive a different system switching request that is sent by the base station controller BSC to the target cell under the control of the primary RNC in the DRNC;

The response unit is further configured to return a different system handover failure response by using the core network device

The BSC, the different system handover failure response carries the target cell information under the control of the standby RNC or the indication information used to acquire the target cell information under the control of the standby RNC.

A communication system, comprising the network device of any one of claims 9 to 12 and any one of the radio network controllers of claims 13 to 16.