WO2008110124A1 - Mobility processing method, device and system - Google Patents

Abstract

A mobility processing method, device and system, the method mainly comprises: when performing mobility processing for a user device, the network side sending indication information carrying cause information to the user device. Or, when performing an indication for the user device, the network side performing a judgment according to at least one of obtained user device information and cell information, selecting corresponding indication information for the user device, and sending the indication information to the user device. Or, when the source network side interworking with the target network side, the source network side sending request information carrying user device information to the target network side, and the target network side returning response information to the network side.

Description

 Description Method, device and system for mobility processing

 [1] Technical field

 [2] The present invention relates to the field of network communications, and in particular, to a method, apparatus, and system for mobility processing.

 [3] Background of the invention

 [4] In cellular systems, mobility management is a key technology in order to provide services to mobile UEs.

 The mobility processing includes cell selection reselection, relocation, cell change, handover and relocation on the RAN side. The CN (Core Network) side includes TA (Tracking Area) management and roaming functions. In the prior art, these mobility processes are all dominated by wireless conditions, and the mobility decision is not or not fully considered by the UE and other factors of the network, resulting in an unreasonable result of the mobility decision, resulting in the next time Additional mobility processing. The following is an example of relocation.

 [5] at UMTS (Universal Mobile Telecommunications

 In a mobile communication system such as System, Universal Mobile Telecommunications System, for UEs in the idle state

 Equipment, user equipment) does not consider load balancing. Therefore, multiple UEs in the idle state may reside in a certain cell, and only a small number of UEs in the idle state may reside in other cells. The above-mentioned unbalanced UE camping may cause potential system load. Unbalanced, relocating the UE is one of the ways to solve this system load imbalance.

[6] The main processing procedure for the UE to perform relocation is: The network side indicates the UE-frequency or RAT (radio access)

 Technology, radio access technology), the UE performs search and cell selection according to the frequency or RAT, finds a new cell, and accesses and camps.

[7] The methods for relocating UEs in the UMTS in the prior art mainly include the following:

 [8] Method 1. The UE sends RRC (Radio Resources Control) to the network.

 Connection request (RRC Connection Request) message, NodeB (base station) received the RRC connection

After the request message, according to the load status of the network, for example, when judging the load of the network is relatively heavy, Send RRC connection carrying redirection info (relocation information)

 Reject (RRC Connection Reject) message to the UE, the UE according to the redirection

 Info performs the corresponding relocation operation.

[9] Method 2. The UE sends an RRC connection request message to the network, and the NodeB receives the RRC.

 Connection

 After the request message, according to the load status of the network, for example, when it is judged that the load of the network is relatively heavy, the RRC connection carrying the frequency assignment information is sent.

 The setup (RRC Connection Setup) message is sent to the UE, and the UE moves to another frequency layer according to the frequency assignment information, performs a corresponding relocation operation, and enters a CELL_DCH (cell dedicated channel) state.

[10] Method 3. When the UE is in the RRC connection state, the UE sends an RRC connection to the network.

 Release (RRC Connection Release) message. NodeB receives the RRC connection

 After the release message, according to the load status of the network, for example, when it is determined that the load of the network is relatively heavy, the RRC connection carrying the relocation information is sent to the UE.

 The release message, the UE moves to another frequency or RAT according to the relocation information, and performs a corresponding relocation operation.

 [11] In the foregoing method for performing relocation by the UE, the NodeB triggers the UE to perform relocation according to the load condition of the network, and the result of the relocation may be unreasonable, thereby causing the next additional relocation.

 [12] Summary of the invention

 [13] It is an object of embodiments of the present invention to provide a method, apparatus, and system for mobility processing that can optimize processing of user equipment mobility.

[14] The purpose of the embodiment of the present invention is achieved by the following technical solutions:

An embodiment of the present invention provides a method for mobility processing, including:

 [16] The network side receives the mobility processing request, and sends the indication information carrying the mobility processing cause information to the user equipment corresponding to the mobility processing request.

[17] The embodiment of the invention provides a network side device, including:

[18] a receiving module, configured to receive a mobility processing request;

[19] an obtaining module, configured to acquire cause information of the mobility processing corresponding to the mobility processing; [20] The mobility cause information sending module is configured to send, to the user equipment, indication information that carries the cause information of the mobility processing.

 [21] The embodiment of the present invention provides a method for determining mobility indication information, including:

 [22] determining, according to at least one of the obtained related information of the user equipment and the related information of the cell, the mobility indication information corresponding to the user equipment.

[23] An embodiment of the present invention provides a device for determining mobility indication information, including:

[24] a mobility information acquiring module, configured to acquire at least one of related information of the user equipment and related information of the cell;

 [25] a mobility information selection module, configured to determine mobility indication information corresponding to the user equipment according to at least one of related information of the acquired user equipment and related information of the cell,

 [26] The embodiment of the present invention provides a method for network-side mobility information interaction, including:

 [27] The source network side transmits the mobility request information carrying the information of the user equipment to the target network side, and the target network side returns the mobility response information to the source network side.

 [28] The embodiment of the invention provides a network-side mobility information interaction system, including:

 [29] a source network side device, configured to send, to the target network side, a mobility request that carries information about the user equipment

 I port from te! ,.,

 [30] The target network side device is configured to return the mobility response information to the network side after receiving the mobility request information sent by the source network side device.

 According to the technical solution provided by the foregoing embodiments of the present invention, the network side sends the mobility cause information to the user equipment, so that the user equipment can perform corresponding information according to the mobility cause information and the network. Processing to optimize the mobility process for different reasons.

 [32] In the embodiment of the present invention, the network device or the user equipment selects a suitable cell or a cell set according to at least one of the acquired user equipment and the related information of the cell, and ensures that the user equipment mobility target cell does not Due to load, service capability, or limiting factors, the user equipment is again subjected to mobility processing, thereby shortening the mobility of the user equipment.

[33] In the embodiment of the present invention, the source network sends the mobility information of the user equipment service request to the target network side, and the target network side returns the response information to the source network side, thereby shortening the user equipment in the initial cell service processing to the final assignment. The target cell continues the processing of the service, and optimizes the mobility of the UE. Cheng.

 [34] BRIEF DESCRIPTION OF THE DRAWINGS

 1 is a schematic structural diagram of a network side device according to Embodiment 1 of the present invention;

2 is a process flow diagram of the method according to Embodiment 2 of the present invention;

 FIG. 3 is a schematic diagram of the change information of the cell related information transmitted by the eNB through the X2 port according to Embodiment 2 of the present invention; FIG.

 4 is a schematic diagram of interaction of load information between RRMs according to Embodiment 2 of the present invention;

FIG. 5 is a flowchart of specific processing of mobility of a UE according to Embodiment 2 of the present invention; FIG.

Figure 6 is a schematic structural diagram of a network side device according to Embodiment 2 of the present invention;

FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 2 of the present invention; FIG.

 FIG. 8 is a schematic diagram of a source eNB interacting with a target eNB by using a signaling manner according to Embodiment 3 of the present invention; [43] FIG. 9 is a schematic diagram of a source eNB using a determinator according to Embodiment 3 of the present invention; Schematic diagram of the target eNB interacting

FIG. 10 is a schematic structural diagram of a system for mobility processing according to Embodiment 3 of the present invention.

[45] Mode for carrying out the invention

 Embodiments of the present invention provide a method, apparatus, and system for mobility processing.

 [47] The mobility processing in the embodiment of the present invention includes: relocation, handover, cell change command, cell update, etc.

E and network side exchange mobility processing.

The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. The processing procedure of the mobility processing method in Embodiment 1 of the present invention is as follows:

 After receiving the relocation request message sent by the UE, the NodeB determines that the UE needs to perform relocation according to the information about the load of the network, and sends a relocation request response message carrying the relocation reason information to the UE (for example, Table 1-a, the relocation indication information or the relocation rejection message of Table 1-b). The reasons for the relocation are as follows: The load status or service status of the network. The reason information may be set in the relocation response information as in the relocation rejection message of Table 1-b or in the relocated IE (information unit) (Table 1-a), and the reason information of the relocation is set as shown in Table 1 below. -a and Table 1-b.

[50] Table 1-a: [51]

 Information Need Multi Type and reference Semantics

Element/Group description name

 CHOICE MP

 Redirection

 Information

 >Frequency information Frequency info 10.3.6.36

 >Inter-RAT info Inter-RAT info 10.3.7.25

 >cause MO (congestion, Service related

 Reason unspecified) Table 1-b

Information Need Multi Type and reference Semantics

Element/Group description name

 Rejection cause MP Enumerated(congestion, Service

 Related reason unspecified)

[54] After receiving the corresponding relocation request message, the UE obtains the relocation reason information carried in the IE included in the corresponding message of the relocation request, and performs corresponding service processing. For example, when _CaUSe = _COn ge _S ti on _吋 , the UE uses IE'Vaiting according to the current protocol.

 Time" to check periodically whether the original network is available. If available, you can re-use the cell to re-select to return to the original network. When cause=service related reason吋, the UE can ignore the use of IE "waiting time", this is Because the capability of the service supported by the network is a relatively static parameter, it does not change rapidly with the time. The UE can check the status of the original network if necessary after the end of the service, or directly indicate in the release message. Go to the right network.

[55] The above relocation request message may be: RRC connection

The request message, the corresponding relocation request response message is: RRC connection The reject message or the RRC connection release message or the connection resolution. The IE that sets the reason information of the relocation may also be sent by paging signaling, RB (Radio Bearer, radio bearer) signaling, or other downlink signaling. Give the UE.

[56] Through the processing flow of the mobility processing method of Embodiment 1 above, the relocation processing flow for different reasons can be optimized, especially for the cause value.

 The relocation of the UE or the non-dynamic factor causes the relocation operation on the UE side to be simplified. That is, the UE does not have to look at the original network after a period of time, thereby simplifying the processing of the UE in this case. The delay of small relocation.

 [57] The embodiment of the present invention is described in detail by taking the relocation processing procedure in the mobility processing process as an example. In other mobility scenarios, such as handover, cell change command, or cell update, the network side is under Downlink signaling sent, such as the HO command, cell change order or cell update confirm message, etc., indicating the reason for mobility.

 [58] After receiving the reason information, the UE needs to process according to different reason information.

 [59] The schematic diagram of the structure of the network side device in Embodiment 1 of the present invention is as shown in FIG. 1 and includes the following modules:

 [60] a receiving module, configured to receive a mobility processing request;

 [61] an obtaining module, configured to acquire reason information of the mobility processing corresponding to the mobility processing;

 [62] The mobility reason information sending module is configured to send, to the UE, indication information that carries the mobility cause information.

[63] Taking the LTE system as an example, the processing flow of the mobility indication information determining method in Embodiment 2 of the present invention is as shown in FIG. 2, and includes the following steps:

[64] Step 2-1: eNB (E-UTRAN

 The NodeB, the evolved UTRAN system base station) or the UE acquires information about the UE and/or the cell.

[65] The eNB on the network side needs to acquire related information of the UE according to at least one of a manner of reporting by the UE, sending the network, and acquiring the network. The related information of the UE mainly includes the following aspects:

[66] 1. The capability information of the bandwidth capability and the service capability of the UE, where the service capability includes at least one of: a private network supported by the UE, a frequency layer, and a capability of the RAT;

[67] 2. The subscription information of the UE mainly includes information such as the user priority obtained by the initial access of the UE;

[68] 3. The attribution information of the UE, mainly including the PLMNs of the UE (Public Land Mobile) Network, Public Land Mobile Network) Information.

 4. The restriction information of the UE.

 The eNB on the network side also needs to report according to the UE, X2 port or RRM (Radio Resources

At least one of management, radio resource management, etc. acquires cell related information.

[71] The relevant information of the community mainly includes the following aspects:

 [72] 1. The signal quality information of the cell mainly includes information such as the measured signal strength of the same frequency and different frequency cells.

 The signal quality information mainly comes from the reporting by the UE.

[73] 2. Load information of the cell;

[74] 3. The business support capability information of the community;

 [75] 4. Special restriction information of the cell. The special restriction information mainly includes information such as access restrictions or other special restrictions.

[76] 5. Information such as the id of the cell, the primary scrambling code, and so on.

 [77] The eNB can obtain signal quality information of each cell by reporting by each UE.

 [78] For each cell under the same eNB, through the intra-eNB (within the eNB) RRM

 The load balancing between cells can be implemented, and the eNB passes the intra-eNB.

 The RRM can obtain all of the above related information for each cell.

[79] For a cell under different eNBs, the eNB can obtain information such as the id of each cell, the primary scrambling code, the service support capability information of the cell, and the special restriction information of the cell through the X2 port between the eNBs. This information is relatively static information, and the eNB can obtain and save it through the X2 port after the communication is established for the first time.

[80] After the information exchange between the initial eNBs, after the cell related information on the eNB changes, the eNB will notify the neighboring eNB of the change information through the X2 port. A schematic diagram of the change information of the cell-related information transmitted by the eNB through the X2 port is shown in FIG. 3.

As shown in FIG. 3, when the cell related information of the eNB1 changes, for example, the eNB1 changes its supported service or restriction information, the eNB1 will send the change information to the neighboring eNB2 and eNB3, and the change information may pass. Special signaling or signaling entrainment is used for transmission. After receiving the above change information, eNB2 and eNB3 will return a response message to eNB1. eNB1 can also ensure eN by repeatedly transmitting multiple times.

B2 and eNB3 - will receive this information.

[82] For a cell under different eNBs, an inter-eNB (inter-eNB) RRM is also set in the eNB, eN B may obtain load information of the current cell and the neighboring cell from the inter-eNB RRM.

[83] When the load information and/or resource conditions and/or load control policies of the cells managed on the RRM change, information exchange is also performed between the RRMs. The load information between the RRMs and the interaction of the resource information can be based on certain restrictions. Only when the load condition exceeds a certain load limit, the load information is exchanged.

 [84] The frequency of the above load information interaction can also be dynamically changed. For example, when the load on the RRM is less than 30%, no load information interaction is required. In the case that the load is not very high, the load information can be exchanged once the load changes to 10%. When the load becomes high, the load information can be exchanged once the load changes to 5% or 3%.

 [85] A schematic diagram of interaction of load information between RRMs is shown in FIG. 4, when load data in the RRM on the eNB1, such as load information and/or resource conditions of the cell and/or a policy of the RRM of the cell, changes. After that, the RRM1 on the eNB1 actively transmits the load change information to the RRMs (RRM2, RRM3) of the neighboring eNBs (eNB2, eNB3). After receiving the load change information, the RRM2 and the RRM3 may return a response message to the RRM1. RRM 1 can also ensure that RRM2 and R RM3 receive this information by repeating multiple transmissions.

 [86] The UE may acquire related information of the UE and the cell according to at least one of a manner of sending a network, acquiring the network, and the like. For example, the eNB sends the obtained information about the UE and the cell to the UE through downlink signaling or broadcast.

 [2] Step 2-2: The eNB or the UE selects appropriate mobility indication information for the UE according to the acquired information about the UE and the cell.

 After receiving the mobility request sent by the UE, the eNB may perform corresponding comprehensive determination according to the acquired information about the UE and the cell, and select appropriate mobility indication information for the UE, and send the information to the UE. . The mobility indication information includes information such as a cell or a cell set or code information of a cell.

 [89] Alternatively, the eNB sends the obtained information about the UE and the cell to the UE by using downlink signaling or a broadcast manner. The UE performs corresponding comprehensive judgment according to the related information of the UE and the cell, and selects appropriate mobility indication information.

[90] According to the foregoing embodiment 2 of the present invention, the mobility indication information determining method, a specific processing procedure for the UE to perform mobility processing is as shown in FIG. 5. The UE sends an uplink request message carrying the relocation request information to the eNB, The eNB selects a suitable cell or cell set for the UE according to the information about the UE and the cell obtained from the information reported by the UE or the X2 port or the RRM. Then, the eNB sends a downlink signaling message carrying the above cell or cell set information to the UE.

 [91] The process flow of the mobility indication information determining method in the foregoing embodiment 2, the eNB may be configured to perform cell-related information such as signal strength, cell load, cell service support capability, and/or cell restriction of each cell collected by the network side, and / or UE related information reported by the UE, select a suitable relocation cell or cell set for the UE. The cell that ensures that the UE is relocated and accessed does not cause the UE to re-locate again and re-reproduce the selected cell to camp because of load, service capability, or limiting factors. Thereby, shortening the time interval between the UE selecting the cell and optimizing the process of relocation of the UE is optimized.

 [92] The above-described Embodiment 2 can also be applied to other mobility processing, such as handover, cell change, or cell update. In the selection of the target network node, the eNB or the UE also needs to consider at least one of the UE-reported or network-side collected UE information and the cell-related information, and then determines the last target cell or cell set. This optimization can prevent the UE from moving to the target cell and find that the target cell cannot provide the services required by the UE, resulting in repeated mobility processing, which brings complexity and delay of processing.

 [93] The schematic diagram of the structure of the network side device in Embodiment 2 of the present invention is as shown in FIG. 6, and includes the following modules:

 [94] The mobility information selection module is configured to: after receiving the mobility request information sent by the UE to the network side, perform comprehensive judgment according to the acquired information about the UE and each cell, and select corresponding mobility indication information for the UE. .

 [95] a mobility information sending module, configured to send the indication information selected by the mobility information selection module to

[96] The network side device also includes:

 [97] The mobility information acquiring module is configured to acquire information about the UE and/or the cell by using at least one of the reporting information of the UE, the interface between the base stations, and the RRM.

[98] A schematic structural diagram of a user equipment according to Embodiment 2 of the present invention is as shown in FIG. 7, and includes the following modules:

[99] The mobility information selection module is configured to determine, according to the obtained information of the user equipment and the information of the cell, the corresponding mobility indication information.

[100] The mobility information acquiring module is configured to acquire at least one of information about the user equipment and information of a cell by using a network side. [101] After the network side or the UE side selects a suitable mobility target cell or a cell set, the UE synchronizes to the target cell or the cell set, and then re-initiates the service in the target cell or the cell set, and the subsequent service flow. At present, the process needs to be optimized from the time when the UE performs service processing from the initial cell to the time when the mobile to the target cell continues to process the service. Taking the LTE system as an example, the processing procedure of the mobility information interaction method in Embodiment 3 of the present invention is as follows:

 After receiving the mobility request sent by the UE, the source eNB selects a suitable target cell or a cell set according to the acquired information about the UE and the cell.

 [103] Then, the source eNB transmits, to the target eNB on the target cell (set), a mobility request message carrying information about the capability of the UE and the subscription information, and the mobility request message also includes information of the UE (for example, Service request information, UE capability information or subscription information). After receiving the mobility request message, the target eNB controls the UE access control, and if the access control passes, it indicates that the target eNB can already receive the UE. Then, the UE is started to perform resource processing, and sends a service request message to the core network to obtain UE related information, where the UE related information includes context information of the UE and status information of the UE.

 [104] The source eNB may perform the interaction with the target eNB by using the signaling manner, and the source eNB sends the mobility request message to the target eNB, and the target eNB receives the mobility request message, and determines that the UE access control passes. Thereafter, a mobility response message is returned to the source eNB. After receiving the mobility response message, the source eNB sends a mobility response message carrying the target cell or the cell set to the U E.

 [105] The source eNB may also interact with the target eNB by using a determinator manner as shown in FIG. 9. After the source eNB sends the mobility request message to the target eN B, the preset eNB is started, and the determinator is started. The fixed time is the time when the above mobility response message is received normally. Then, after arriving at the fixed time of the above-mentioned timer, the UE transmits a mobility response message carrying the target cell or the cell set. In this case, the foregoing target eN B has begun to reserve resources for the UE, establish an RB, and acquire UE related information from the core network.

 [106] After receiving the mobility response message, the UE sends a mobility complete message to the target eNB on the target cell (set), where the mobility complete message is equivalent to a service request message in the assigned cell. The target eNB receives the above mobility completion message and related information of the UE returned by the core network side, and continues to process the subsequent process of the UE.

[107] The processing procedure of the method for mobility information interaction in the foregoing Embodiment 3 may: before the UE sends a service request message to the target eNB, the target eNB has started to obtain related information of the UE from the core network, thereby The time when the target eNB acquires the UE-related information can be shortened, and the UE is shortened from the initial cell service processing to the final processing of the target cell in the assignment. The process of UE mobility is optimized.

[108] The structure of the mobility processing system for mobility information interaction is as shown in FIG. 10, including

[109] The source network side device is configured to: after receiving the uplink request information sent by the UE to the source network side, select a mobility cell or a cell set for the UE, and send the related information that carries the UE to the mobile cell or the cell set. Mobility request information;

 [110] The target network side device is configured to obtain related information of the UE from the core network after receiving the mobility request information sent by the source network side device.

[111] The source network side device mentioned above further includes:

 [112] The mobility indication information sending module is configured to send the mobility indication information to the UE after receiving the response information returned by the mobile cell or the cell set or after arriving in a predetermined setting. and / or,

[113] The mobility reason information sending module is configured to send the reason information of the mobility processing to the user equipment after receiving the response information returned by the target network side or after arriving at a preset timer

[114] The above target network side device further includes:

 [115] The access control module is configured to perform access control on the UE after receiving the mobility request information sent by the source network side device, and perform resource processing on the UE after the access control is passed.

 [116] In practical applications, the processing flow of the above three embodiments can be combined and applied in combination. For example, the network side may perform comprehensive judgment according to the acquired related information of the user equipment and the cell, select corresponding mobility indication information for the user equipment, and send the mobility information to the peer of the user equipment, and the reason for the mobility Information is also sent to the user device.

 [117] For another example, the network side may perform comprehensive judgment according to the acquired information about the user equipment and the cell, and after selecting the corresponding mobility cell or cell set for the user equipment, send the mobility cell or cell set to the mobile device. The peer of the user equipment sends mobility request information carrying relevant information of the user equipment to the mobile cell or cell set.

 The method and system of the embodiments of the present invention are applicable to LTE, GSM (Global System)

Mobile, Global System for Mobile Communications, CDMA (Code Division Multiple) Access, Code Division Multiple Access) and WCDMA (Wideband Code Division Multiple Access), Wimax (World Interoperability for Microwave Access, Global Interoperability for Microwave Access) and other wireless mobile communication systems.

 In summary, the embodiment of the present invention can enable the user equipment to perform corresponding processing according to the reason information of the mobility and the corresponding processing, thereby optimizing the mobility processing procedure for different reasons; Because the load, service capability, or limiting factors cause the user equipment to perform mobility again, thereby shortening the user equipment to select the mobility target cell; the user equipment can be shortened from the initial cell processing service to the final target cell. Continue the business process.

 The above description is only a preferred embodiment of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any technology that is familiar to those skilled in the art in the embodiments of the present invention is disclosed. Variations or substitutions that are conceivable within the scope of the invention are intended to be included within the scope of the invention. Therefore, the scope of protection of the embodiments of the present invention should be determined by the scope of protection of the claims.

Claims

Claim  [1] 1. A method for mobility processing, comprising:  The network side receives the mobility processing request, and sends the indication information carrying the mobility processing reason information to the user equipment corresponding to the mobility processing request.  [2] The method of the mobility processing according to claim 1, wherein the method for transmitting the indication information of the reason information of the mobility processing to the user equipment comprises: the mobility The reason information of the processing is set in the information unit IE, and the indication information carrying the IE is sent to the user equipment.  [3] The method of mobility processing according to claim 1 or 2, wherein the indication information comprises: cell information, cell set information, frequency information, or radio access technology RAT information.  [4] 4. A network side device, comprising:  a receiving module, configured to receive a mobility processing request;  An obtaining module, configured to acquire cause information of the mobility processing corresponding to the mobility processing, and a mobility reason information sending module, configured to send, to the user equipment, indication information that carries the reason information of the mobility processing.  [5] 5. A method for determining mobility indication information, comprising:  Determining mobility indication information corresponding to the user equipment according to at least one of the obtained related information of the user equipment and the related information of the cell.  [6] The method of claim 5, wherein the determining the mobility indication information corresponding to the user equipment comprises:  The user equipment determines the mobility indication information corresponding to the user equipment; or the network side determines the mobility indication information corresponding to the user equipment, and sends the determined mobility indication information to the user equipment. [7] The method for determining mobility indication information according to claim 5 or 6, wherein the mobility indication information comprises: cell information, cell set information, frequency information, or RAT information. [8] The method for determining the mobility indication information according to claim 5 or 6, wherein: the related information of the user equipment includes: bandwidth capability and service capability information of the user equipment, and At least one of subscription information of the user equipment, attribution information of the user equipment, and restriction information of the user equipment;  The related information of the cell includes: at least one of signal quality information of the cell, load information of the cell, service support capability information of the cell, special restriction information of the cell, identifier of the cell, and primary scrambling code information.  [9] The method for determining the mobility indication information according to claim 5 or 6, wherein at least one of the acquired information about the user equipment and the related information of the cell is specifically: Acquiring at least one of related information of the user equipment and related information of the cell by using at least one of a user equipment, an interface between the base stations, and a radio resource management RRM.  [10] The method for determining the mobility indication information according to claim 9, wherein the method further comprises:  After the related information of the cell changes, the related change information is exchanged between the base stations or between the RRMs.  [11] 11. A device for determining mobility indication information, comprising:  a mobility information acquiring module, configured to acquire at least one of related information of the user equipment and related information of the cell;  The mobility information selection module is configured to determine mobility indication information corresponding to the user equipment according to at least one of related information of the acquired user equipment and related information of the cell. [12] 12. The device according to claim 11, wherein the device further comprises:  And a mobility information sending module, configured to send the mobility indication information determined by the mobility information selection module to the user equipment. [13] The apparatus of claim 11 or 12, wherein the mobility information acquisition module acquires the user equipment by using at least one of reporting information of the user equipment, an interface between the base stations, and an RRM. At least one of the information and the information of the cell. [14] 14. A method for network-side mobility information interaction, comprising:  The source network side transmits the mobility request information carrying the information of the user equipment to the target network side, and the target network side returns the mobility response information to the source network side. [15] 15. The method for network side mobility information interaction according to claim 14, wherein: The method specifically includes:  After the source network side selects the target network side, the source network side sends the mobility request information carrying the information of the user equipment to the target network side;  The target network side performs access control on the user equipment, and returns the mobility response information to the source network side after the access control passes;  The source network side sends the mobility indication information and/or the mobility processing reason information to the user equipment after receiving the response information returned by the target network side or after arriving at a predetermined setting.  [16] The method according to claim 15, wherein the method for transmitting the mobility indication information to the user equipment comprises: the source network side according to the acquired related information of the user equipment and the related information of the cell. At least one of determining the mobility indication information corresponding to the user equipment.  [17] The method for network-side mobility information exchange according to claim 14, wherein the information of the user equipment comprises: service request information, capability information, and subscription information of the user equipment. At least one of them.  [18] 18. A system for network-side mobility information interaction, comprising:  a source network side device, configured to send, to the target network side, mobility request information that carries information about the user equipment;  And the target network side device is configured to return the mobility response information to the network side after receiving the mobility request information sent by the source network side device. [19] 19. The system of the network side mobility information interaction according to claim 18, wherein the system further comprises:  The access control module is located at the target network side device, and is configured to perform access control on the user equipment after receiving the mobility request information sent by the source network side device, and after the access control passes, to the source network side The device returns mobility response information. [20] 20. The system of the network side mobility information interaction according to claim 18 or 19, wherein the system further comprises: a mobility indication information sending module, configured to be located at the source network side device, configured to: after receiving the response information returned by the target network side or after arriving at a preset timer, setting the user to the user Sending mobility indication information; and/or, The mobility reason information sending module is located at the source network side device, and configured to send the mobility processing to the user equipment after receiving the response information returned by the target network side or after arriving at a preset timer Reason information.