Mobility management method and device, network side access point, terminal and medium

Abstract

The invention relates to a mobility management method and device, a network side access point, a terminal and a medium. In at least one embodiment of the present disclosure, a terminal sends an uplink reference signal, and a network side access point (AP) measures the uplink reference signal; a network side access point (AP) can obtain a plurality of measurement results of a plurality of APs to a UE-RS by triggering wired interface interaction between the APs, and then the network side access point (AP) performs mobility management on a terminal based on the plurality of measurement results instead of measuring a downlink reference signal sent by a base station by the terminal and reporting a measurement report, the base station does not need to issue measurement control information, and the user experience is improved. And the terminal does not need to report a measurement report, so that air interface resources occupied by issuing the measurement control information and reporting the measurement report and time delay caused by air interface transmission are reduced.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of communication, in particular to a mobility management method and device, a network-side access point, a terminal and a medium. BACKGROUND

[0002] Currently, when a radio resource control (RRC) connected terminal moves between base stations, the interaction process between the base station and the terminal includes: the base station sends measurement control information to the terminal, including measurement objects and measurement report (MR) related configurations (such as measurement event configurations); the terminal performs mobility measurement according to the received measurement control information and reports according to the measurement event configurations; after the base station receives the MR reported by the terminal, the base station performs handover preparation and handover execution according to a decision threshold and neighboring cell configurations; the base station sends an RRC reconfiguration message to the terminal to indicate information of a target cell. After the terminal accesses the target cell according to the indication of the base station, the terminal sends an RRC reconfiguration complete message to the base station of the target cell.

[0003] It can be seen that in the current mobility management mechanism of the network, the terminal needs to perform downlink reference signal measurement and reporting according to the configuration of the network side, and the base station performs mobility management (such as handover control) according to the measurement report reported by the terminal. This mobility management mechanism needs to transmit measurement control information and measurement reports over the air interface, which causes problems such as air interface resource consumption and air interface transmission delay. SUMMARY

[0004] At least one embodiment of the present disclosure provides a mobility management method, device, network-side access point, terminal and medium.

[0005] In a first aspect, embodiments of the present disclosure provide a mobility management method applied to a network-side access point (AP), the method comprising:

[0006] The AP listens to a reference signal sent by a terminal;

[0007] The AP measures the reference signal to obtain a measurement result;

[0008] The AP triggers inter-AP interface interaction to obtain a plurality of measurement results of the reference signal;

[0009] The AP performs mobility management on the terminal based on the plurality of measurement results.

[0010] In some embodiments, the reference signal includes a terminal identifier and auxiliary information;

[0011] The terminal identifier is a trusted terminal identifier identified by the network side or a trusted terminal identifier identified in an AP set maintained by an anchor AP, and the anchor AP is an access point connected to a core network.

[0012] The assistance information comprises at least one of:

[0013] An AP identifier to which the terminal is currently connected, and a service area indication.

[0014] In some embodiments, the AP listens to the reference signal sent by the terminal, including any one of:

[0015] The AP continuously listens to the reference signal sent by the terminal;

[0016] The AP periodically listens and / or conditionally listens to the reference signal sent by the terminal based on a protocol specification or network configuration;

[0017] The AP listens to the reference signal sent by the terminal based on an indication of an anchor AP.

[0018] In some embodiments, the AP measures the reference signal to obtain a measurement result, and the method further comprises:

[0019] If the measurement result is lower than a preset threshold, the load of the AP is higher than a preset load threshold, or the AP cannot meet the service requirement of the terminal, the AP sends a listening request for the reference signal of the terminal to at least one neighboring AP; or the AP sends a listening request for the reference signal of the terminal to an anchor AP, and the anchor AP sends the listening request to at least one AP.

[0020] In some embodiments, the AP triggers inter-AP interface interaction to obtain multiple measurement results of the reference signal, including:

[0021] The AP obtains the measurement result of the reference signal of at least one neighboring AP through inter-AP interface interaction.

[0022] In some embodiments, the AP triggers inter-AP interface interaction to obtain multiple measurement results of the reference signal, including at least one of the following triggering manners:

[0023] The neighboring AP listens to the reference signal sent by the terminal;

[0024] The neighboring AP listens to the reference signal sent by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold;

[0025] The neighboring AP listens to the reference signal sent by the terminal after the AP sends a measurement report request for the reference signal to the neighboring AP through an inter-AP interface;

[0026] The neighboring AP listens to the reference signal sent by the terminal after the AP sends a measurement report request for the reference signal to the neighboring AP through an inter-AP interface, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold;

[0027] AP is an anchor AP, and the neighboring AP is an AP in the set of APs maintained by the anchor AP.

[0028] In some embodiments, the measurement report request of the reference signal comprises at least one of:

[0029] terminal information, AP information, a handover request message;

[0030] The terminal information comprises an identifier of the terminal or an identifier of a set containing the terminal.

[0031] The AP information comprises at least one of: an identifier of the source AP, load information of the source AP, a measurement result of the reference signal of the terminal by the source AP.

[0032] In some embodiments, the AP obtains the measurement result of the reference signal by the at least one neighboring AP through inter-AP interface interaction, comprising:

[0033] The AP obtains the measurement report sent by the at least one neighboring AP through the inter-AP interface, wherein the measurement report comprises at least one of:

[0034] terminal information, AP information, a handover request confirmation message;

[0035] The terminal information comprises an identifier of the terminal or an identifier of a set containing the terminal.

[0036] The AP information comprises at least one of: an identifier of the destination AP, a measurement result of the reference signal of the terminal by the neighboring AP, load information of the neighboring AP.

[0037] In some embodiments, after the AP listens to the reference signal sent by the terminal, the method further comprises:

[0038] The AP instructs the terminal to measure the downlink reference signal and report the measurement result based on a preset condition.

[0039] The AP performs mobility management on the terminal based on multiple measurement results, comprising:

[0040] The AP performs mobility management on the terminal based on multiple measurement results and the measurement result reported by the terminal.

[0041] In some embodiments, the preset condition comprises at least one of:

[0042] The quality of the reference signal is lower than a preset quality threshold, the strength of the reference signal is lower than a preset strength threshold, the terminal leaves or enters a preset area.

[0043] The preset area comprises at least one of:

[0044] A notification area, a cell, or a preset geographical area based on a radio access network (RAN).

[0045] In some embodiments, the AP performs mobility management on the terminal based on the multiple measurement results, including:

[0046] The AP determines the AP and / or service area to be changed by the terminal based on the multiple measurement results.

[0047] The AP sends a change indication to the terminal, and the change indication includes the changed AP and / or service area.

[0048] In some embodiments, if the AP is an anchor AP, the change indication includes the changed AP and / or service area in a set of APs maintained by the AP.

[0049] In a second aspect, the embodiments of the present disclosure further provide a mobility management method applied to a terminal, including:

[0050] sending a reference signal to at least one network-side access point (AP), the reference signal being used by the at least one AP to obtain at least one measurement result by measuring the reference signal, and the at least one measurement result being used by the at least one AP to perform mobility management on the terminal.

[0051] In some embodiments, after the reference signal is sent to the at least one network-side AP, the method further includes:

[0052] receiving indication information sent by the at least one AP, the indication information being used to instruct the terminal to measure the downlink reference signal and report the measurement result;

[0053] measuring the downlink reference signal of the at least one AP to obtain at least one measurement result;

[0054] sending the at least one measurement result to the corresponding AP.

[0055] In a third aspect, the embodiments of the present disclosure further provide a mobility management device applied to a network-side AP, including:

[0056] a listening unit configured to listen to a reference signal sent by a terminal;

[0057] a measurement unit configured to measure the reference signal to obtain a measurement result;

[0058] a triggering unit configured to trigger inter-AP interface interaction to obtain multiple measurement results of the reference signal;

[0059] a management unit configured to perform mobility management on the terminal based on the multiple measurement results.

[0060] In a fourth aspect, the embodiments of the present disclosure further provide a mobility management apparatus applied to a terminal, the apparatus comprising:

[0061] a sending unit configured to send a reference signal to at least one network-side access point (AP), the reference signal being used by the at least one AP to perform measurement to obtain at least one measurement result, the at least one measurement result being used by the at least one AP to perform mobility management on the terminal.

[0062] In a fifth aspect, the embodiments of the present disclosure further provide a network-side access point, wherein the network-side access point (AP) comprises a memory, a transceiver, and a processor.

[0063] the memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following steps:

[0064] listening to a reference signal sent by the terminal;

[0065] performing measurement on the reference signal to obtain a measurement result;

[0066] triggering inter-AP interface interaction to obtain a plurality of measurement results of the reference signal;

[0067] performing mobility management on the terminal based on the plurality of measurement results.

[0068] In some embodiments, the reference signal comprises a terminal identifier and auxiliary information.

[0069] The terminal identifier is a trusted terminal identifier recognized by the network side or a trusted terminal identifier recognized in an AP set maintained by an anchor AP, the anchor AP being an access point connected to a core network.

[0070] The auxiliary information comprises at least one of the following:

[0071] an AP identifier of an AP currently connected by the terminal, and a service area indication.

[0072] In some embodiments, the listening to the reference signal sent by the terminal comprises any of the following:

[0073] continuously listening to the reference signal sent by the terminal;

[0074] periodically listening and / or conditionally listening to the reference signal sent by the terminal based on a protocol specification or network configuration;

[0075] listening to the reference signal sent by the terminal based on an indication of an anchor AP.

[0076] In some embodiments, after the measurement on the reference signal to obtain the measurement result, the processor is further configured to:

[0077] If the measurement result is lower than a preset threshold, the load of the AP is higher than a preset load threshold, or the AP cannot meet the service requirement of the terminal, a listening request for the reference signal of the terminal is sent to at least one neighboring AP; or, the listening request for the reference signal of the terminal is sent to the anchor AP, and the listening request is sent by the anchor AP to at least one AP.

[0078] In some embodiments, the inter-AP interface interaction is triggered to obtain multiple measurement results of the reference signal, including:

[0079] The measurement result of the reference signal of at least one neighboring AP is obtained through the inter-AP interface interaction.

[0080] In some embodiments, the inter-AP interface interaction is triggered to obtain multiple measurement results of the reference signal, including at least one of the following triggering manners:

[0081] The neighboring AP listens to the reference signal sent by the terminal;

[0082] The neighboring AP listens to the reference signal sent by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold;

[0083] The neighboring AP listens to the reference signal sent by the terminal after the AP sends a measurement report request for the reference signal to the neighboring AP through the inter-AP interface;

[0084] The neighboring AP listens to the reference signal sent by the terminal after the AP sends a measurement report request for the reference signal to the neighboring AP through the inter-AP interface, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold;

[0085] The AP is an anchor AP, and the neighboring AP is an AP in a set of APs maintained by the anchor AP.

[0086] In some embodiments, the measurement report request for the reference signal includes at least one of the following:

[0087] Terminal information, AP information, and a handover request message;

[0088] The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal.

[0089] The AP information includes at least one of the following: an identifier of a source AP, load information of the source AP, and a measurement result of the reference signal of the terminal by the source AP.

[0090] In some embodiments, the measurement result of the reference signal of at least one neighboring AP is obtained through the inter-AP interface interaction, including:

[0091] obtaining, through an inter-AP interface, a measurement report sent by at least one neighboring AP, wherein the measurement report comprises at least one of the following:

[0092] terminal information, AP information, and a handover request confirmation message;

[0093] The terminal information comprises an identifier of the terminal or an identifier of a set containing the terminal.

[0094] The AP information comprises at least one of the following: an identifier of a target AP, a measurement result of a reference signal of the neighboring AP for the terminal, and load information of the neighboring AP.

[0095] In some embodiments, the processor is further configured to:

[0096] After listening to the reference signal sent by the terminal, instructing the terminal to measure the downlink reference signal and report a measurement result based on a preset condition;

[0097] Based on the multiple measurement results, performing mobility management on the terminal, comprising:

[0098] Based on the multiple measurement results and the measurement result reported by the terminal, performing mobility management on the terminal.

[0099] In some embodiments, the preset condition comprises at least one of the following:

[0100] The quality of the reference signal is lower than a preset quality threshold, the intensity of the reference signal is lower than a preset intensity threshold, the terminal leaves or enters a preset area.

[0101] The preset area comprises at least one of the following:

[0102] A notification area based on RAN, a cell, and a preset geographical area.

[0103] In some embodiments, based on the multiple measurement results, performing mobility management on the terminal, comprises:

[0104] Based on the multiple measurement results, determining an AP and / or a service area to be changed by the terminal;

[0105] Sending a change instruction to the terminal, wherein the change instruction comprises the changed AP and / or service area.

[0106] In some embodiments, if the AP is an anchor AP, the change instruction comprises a change in the AP and / or service area in a set of APs maintained by the AP.

[0107] In a sixth aspect, the embodiments of the present disclosure further provide a terminal, wherein the terminal comprises a memory, a transceiver, and a processor.

[0108] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; the processor for reading the computer program in the memory and performing:

[0109] sending a reference signal to at least one network-side access point AP, the reference signal being used by the at least one AP to measure the reference signal to obtain at least one measurement result, the at least one measurement result being used by the at least one AP to perform mobility management on the terminal.

[0110] In some embodiments, after sending the reference signal to the at least one network-side access point AP, the processor is further configured to:

[0111] receiving indication information sent by the at least one AP, the indication information being used to instruct the terminal to measure the downlink reference signal and report the measurement result;

[0112] measuring the downlink reference signal of the at least one AP to obtain at least one measurement result;

[0113] sending the at least one measurement result to the corresponding AP.

[0114] In a seventh aspect, the embodiments of the present disclosure further provide a processor-readable storage medium, which stores a program, and the program is used to make the processor execute the mobility management method of any one of the first aspect or the mobility management method of any one of the second aspect.

[0115] In at least one embodiment of the present disclosure, an uplink reference signal UE-RS is sent by the terminal, and a network-side access point AP measures the UE-RS; the network-side access point AP can obtain multiple measurement results of the UE-RS by the network-side access point AP through triggering inter-AP wired interface interaction, and then the network-side access point AP performs mobility management on the terminal based on the multiple measurement results, instead of measuring a downlink reference signal BS-RS sent by a base station by the terminal and reporting a measurement report, without the base station issuing measurement control information and the terminal reporting the measurement report, thereby reducing the air interface resources occupied by the measurement control information issuing and the measurement report reporting and the time delay caused by air interface transmission. BRIEF DESCRIPTION OF DRAWINGS

[0116] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0117] Figure 1 a flowchart of a mobility management method provided by the embodiments of the present disclosure;

[0118] Figure 2 An interaction flow diagram in a mobility management scenario one provided by the embodiment of the present disclosure;

[0119] Figure 3 An interaction flow diagram in a mobility management scenario two provided by the embodiment of the present disclosure;

[0120] Figure 4 An interaction flow diagram in a mobility management scenario three provided by the embodiment of the present disclosure;

[0121] Figure 5 An interaction flow diagram in a mobility management scenario four provided by the embodiment of the present disclosure;

[0122] Figure 6 A schematic diagram of a mobility management device provided by the embodiment of the present disclosure;

[0123] Figure 7 A schematic diagram of a network side access point provided by the embodiment of the present disclosure;

[0124] Figure 8 A schematic diagram of a terminal provided by the embodiment of the present disclosure. DETAILED DESCRIPTION

[0125] In order to more clearly understand the above objectives, features and advantages of the present disclosure, further specific description of the present disclosure will be given below with reference to the drawings and embodiments. It can be understood that the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. The specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure are within the scope of protection of the present disclosure.

[0126] It should be noted that in this paper, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

[0127] Currently, when performing mobility measurement, the terminal mainly performs measurement on the downlink reference signal (such as Synchronization Signal / PBCH Block Reference Signal (SSB-RS) and Channel State Information Reference Signal (CSI-RS)) of the base station, such as Synchronization Signal Reference Signal Received Power (SS-RSRP), Synchronization Signal Reference Signal Received Quality (SS-RSRQ), Signal-to-Interference-plus-Noise Ratio for Synchronization Signal (SS-SINR), etc. After the terminal completes the measurement, it can report the measurement report, and the reporting types include event-triggered reporting and periodic reporting.

[0128] Event-triggered reporting:

[0129] Mainly includes six kinds of same system measurement events (A1 to A6) and two kinds of different Radio Access Technology (RAT) measurement events (B1 / B2).

[0130] A1 event: the signal quality of the serving cell is higher than a specified threshold value;

[0131] A2 event: the signal quality of the serving cell is lower than a specified threshold value;

[0132] A3 event: the service quality of the neighbor cell is higher than the service quality of the Special Cell (SpCell) by a specified offset value;

[0133] A4 event: the signal quality of the neighbor cell is higher than a specified threshold value;

[0134] A5 event: the signal quality of the serving cell is lower than a specified threshold value, and the signal quality of the neighbor cell is higher than a specified threshold value;

[0135] A6 event: the service quality of the neighbor cell is higher than the service quality of the Secondary Cell (SCell) by a specified offset value;

[0136] B1 event: the signal quality of the inter-system neighbor cell is higher than a specified threshold value;

[0137] B2 event: the signal quality of the primary cell (PCell) is lower than a specified threshold value, and the signal quality of the inter-system neighbor cell is higher than a specified threshold value.

[0138] The terminal triggers the sending of the measurement report only when the network-configured measurement event entry threshold is met and lasts for a period of time. The event can trigger one report, and the process ends after the measurement report is sent once; or the event triggers periodic reporting, starts a timer between multiple measurements and counts the number of measurements, and the process ends after the number of reports reaches the requirement.

[0139] Periodic reporting mode:

[0140] After the network measurement configuration is completed, the terminal will perform measurement on the corresponding frequency points according to the configuration content, and send measurement reports according to the specified reporting period and interval. When the maximum number of reports is reached, the terminal will automatically delete the corresponding measurement identifier in the measurement configuration variable.

[0141] It can be seen that in the current network mobility management mechanism, the terminal needs to be configured by the network side to perform downlink reference signal measurement and reporting, and the base station performs mobility management (such as handover control) according to the measurement report reported by the terminal. This mobility management mechanism needs to transmit measurement control information and measurement reports over the air interface, resulting in problems such as air interface resource consumption and air interface transmission delay.

[0142] Figure 1 A flowchart of a mobility management method provided by an embodiment of the present disclosure is shown in FIG. 1. The mobility management method is applied to an access point (AP) on the network side. The AP can be a base station of a wireless access network, a relay node, a sending terminal of a device-to-device (D2D) network, etc. When multiple APs provide services for a terminal, the AP connected to the core network is an anchor AP. As shown in FIG. 1, the mobility management method can include but is not limited to steps 101 to 104: Figure 1

[0143] In step 101, the AP listens to the reference signal sent by the terminal.

[0144] The reference signal is an uplink reference signal sent by a connected terminal (UE), denoted as UE-RS, while in the prior art, the terminal listens to a downlink reference signal sent by a base station (BS), denoted as BS-RS.

[0145] In this embodiment, the terminal can send the uplink reference signal UE-RS according to the protocol or network configuration.

[0146] ​In step 102, the AP measures the reference signal to obtain a measurement result.

[0147] In step 102, the AP measures the reference signal to obtain a measurement result.

[0148] In step 103, the AP triggers inter-AP interface interaction to obtain multiple measurement results of the reference signal.

[0149] In step 103, the AP triggers inter-AP interface interaction to obtain multiple measurement results of the reference signal.

[0150] In the embodiment, the AP can also send the measurement result obtained in step 102 to other APs through inter-AP interface interaction. The other APs can be the APs accessed by the terminal or anchor APs.

[0151] In step 104, the AP performs mobility management on the terminal based on the multiple measurement results.

[0152] In step 104, the AP performs mobility management on the terminal based on the multiple measurement results.

[0153] It can be seen that in the embodiment of the present disclosure, the terminal sends uplink reference signal UE-RS, and the network side access point AP measures the UE-RS. The network side access point AP can obtain multiple measurement results of the UE-RS by triggering inter-AP wired interface interaction, and then the network side access point AP performs mobility management on the terminal based on the multiple measurement results, instead of measuring the downlink reference signal BS-RS sent by the terminal and reporting the measurement report, without the need for the base station to issue measurement control information and the terminal to report the measurement report, thereby reducing the air interface resources occupied by the measurement control information and the measurement report and the time delay caused by air interface transmission.

[0154] In some embodiments, in step 101, the reference signal UE-RS sent by the terminal includes a terminal identifier (UE-ID) and auxiliary information.

[0155] In step 101, the reference signal UE-RS sent by the terminal includes a terminal identifier (UE-ID) and auxiliary information.

[0156] The assistance information includes at least one of:

[0157] An AP ID (AP Identifier) to which the terminal is currently connected, and a service area indication.

[0158] The service area indication can point to an APG or an anchor AP.

[0159] In some embodiments, in step 101, the AP listens to the reference signal sent by the terminal, including any of the following listening modes:

[0160] Mode one, the AP continuously listens to the reference signal UE-RS sent by the terminal.

[0161] Mode two, the AP periodically listens to and / or conditionally listens to the reference signal sent by the terminal based on a protocol or network configuration.

[0162] Mode three, the AP listens to the reference signal sent by the terminal based on the indication of an anchor AP, which is an access point connected to the core network.

[0163] In mode two, the periodic listening can be listening according to the UE-RS sending period and time point. The conditional listening can be listening after the terminal leaves or enters a preset area, such as a RAN-based notification area (RNA), a cell, or a preset geographic area.

[0164] In mode three, the anchor AP maintains an AP group (APG), and all APs in the group need to listen to the UE-RS and / or listen to the UE-RS according to the indication of the anchor AP.

[0165] In some embodiments, in step 102, the AP measures the reference signal to obtain a measurement result, and the method further includes:

[0166] If the measurement result is lower than a preset threshold, the load of the AP is higher than a preset load threshold, or the AP cannot meet the service requirements of the terminal, the AP sends a listening request for the reference signal of the terminal to at least one neighboring AP; or the AP sends a listening request for the reference signal of the terminal to an anchor AP, and the listening request is sent by the anchor AP to at least one AP, that is, the anchor AP determines which APs to send the listening request.

[0167] In some embodiments, in step 103, the AP triggers inter-AP interface interaction to obtain multiple measurement results of the reference signal, including:

[0168] The AP obtains the measurement results of the reference signal by inter-AP interface interaction.

[0169] For example, the AP obtains, through the inter-AP interface, a measurement report sent by at least one neighboring AP, wherein the measurement report comprises at least one of the following:

[0170] terminal information, AP information, and a handover request confirmation message.

[0171] The terminal information comprises an identifier of the terminal or an identifier of a set containing the terminal.

[0172] The AP information comprises at least one of the following: an identifier of a target AP, a measurement result of a reference signal of the terminal by a neighboring AP, and load information of the neighboring AP.

[0173] In some embodiments, in step 103, the AP triggers the inter-AP interface interaction in at least one of the following ways:

[0174] (1) The neighboring AP listens to a reference signal sent by the terminal.

[0175] (2) The neighboring AP listens to a reference signal sent by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold.

[0176] (3) The AP sends, through the inter-AP interface, a measurement report request of a reference signal to a neighboring AP, and the neighboring AP listens to a reference signal sent by the terminal.

[0177] (4) The AP sends, through the inter-AP interface, a measurement report request of a reference signal to a neighboring AP, and the neighboring AP listens to a reference signal sent by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold.

[0178] (5) The AP is an anchor AP, and the neighboring AP is an AP in a set of APs maintained by the anchor AP. That is, the APs in the set of APs need to inform the anchor AP of the measurement results.

[0179] In some embodiments, in step 103, the AP triggers the inter-AP interface interaction in the following way: when the AP sends, through the inter-AP interface, a measurement report request of a reference signal to a neighboring AP, the neighboring AP listens to a reference signal UE-RS sent by the terminal. The measurement report request of the reference signal comprises at least one of the following:

[0180] terminal information, AP information, and a handover request message.

[0181] The terminal information comprises an identifier of the terminal (UE ID) or an identifier of a set containing the terminal (UE IDs).

[0182] The AP information includes at least one of the following: a source AP identifier, load information of the source AP, and a measurement result of a reference signal of the source AP on the terminal.

[0183] Correspondingly, the neighboring AP can send a measurement report of the UE-RS to the source AP, specifically, the neighboring AP sends the measurement report of the UE-RS to an AP indicated by an AP identifier (AP ID) carried by the UE-RS or to an AP that sent a measurement report request of the UE-RS, and the measurement report of the UE-RS includes one or more of the following: a destination AP identifier (AP ID), a terminal identifier (UE ID), a measurement result of the UE-RS by the neighboring AP, load information of the neighboring AP, and a handover request confirmation message. The measurement result of the UE-RS by the neighboring AP can be any one of the following:

[0184] Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Reference Signal-Signal to Interference plus Noise Ratio (RS-SINR), a value processed by mathematical calculation or the like from RSRP, a value processed by mathematical calculation or the like from RSRQ, and a value processed by mathematical calculation or the like from RS-SINR.

[0185] In some embodiments, after the AP listens to the reference signal sent by the terminal in step 101, the method further includes:

[0186] The AP instructs the terminal to measure the downlink reference signal and report the measurement result based on a preset condition. The preset condition includes at least one of the following:

[0187] The quality of the reference signal is lower than a preset quality threshold, the strength of the reference signal is lower than a preset strength threshold, the terminal leaves or enters a preset area;

[0188] The preset area includes at least one of the following:

[0189] a notification area based on a radio access network (RAN), a cell, and a preset geographical area.

[0190] Correspondingly, in step 104, the AP performs mobility management on the terminal based on the plurality of measurement results, including: the AP performs mobility management on the terminal based on the plurality of measurement results and the measurement result reported by the terminal.

[0191] In some embodiments, in step 104, the AP performs mobility management on the terminal based on the plurality of measurement results, including steps (1) and (2):

[0192] (1) The AP determines the AP and / or the service area to be changed based on the multiple measurement results.

[0193] (2) The AP sends a change indication to the terminal, and the change indication includes the changed AP and / or the changed service area.

[0194] In the embodiment, if the AP is an anchor AP, the change indication includes the changed AP and / or the changed service area in the AP set maintained by the AP.

[0195] In some embodiments, the disclosure also provides a mobility management method applied to a terminal, and the method includes:

[0196] sending a reference signal to at least one network-side access point (AP), the reference signal being used by the at least one AP to perform measurement to obtain at least one measurement result, and the at least one measurement result being used by the at least one AP to perform mobility management on the terminal.

[0197] In the embodiment, each of the at least one AP performs measurement on the reference signal sent by the terminal to obtain one measurement result.

[0198] Details of the embodiment are described with reference to the foregoing embodiments, and will not be described herein again to avoid repetition.

[0199] In some embodiments, after the reference signal is sent to the at least one network-side access point (AP), the method further includes:

[0200] receiving indication information sent by the at least one AP, the indication information being used to instruct the terminal to perform measurement on the downlink reference signal and report the measurement result;

[0201] performing measurement on the downlink reference signal of the at least one AP to obtain at least one measurement result;

[0202] sending the at least one measurement result to the corresponding AP.

[0203] In the embodiment, the at least one measurement result corresponds to the downlink reference signal of the at least one AP in a one-to-one manner.

[0204] Details of the embodiment are described with reference to the foregoing embodiments, and will not be described herein again to avoid repetition.

[0205] Embodiment One

[0206] Figure 2 The disclosure provides an interaction flow diagram in a mobility management scenario one, which can be understood as an AP change scenario based on UE-AP measurement. In the embodiment, the interaction flow includes the following steps 1 to 7: Figure 2

[0207] ​Step 1: UE connects to AP1 for traffic transmission, and sends UE-RS according to the protocol or network side configuration.

[0208] Wherein, the UE is in RRC_Connected state.

[0209] Step 2: Both AP1 and adjacent AP2 can listen to UE-RS and measure it.

[0210] Step 3: Optionally, when the UE-RS measurement result of AP1 is lower than a predetermined threshold, or other trigger conditions are met, such as AP1 congestion or inability to meet UE service requirements, a UE-RS listening request is sent to adjacent AP2.

[0211] Step 4: AP2 reports and sends UE-RS measurement to AP1.

[0212] Steps 5-6: Optionally, AP1 sends a handover request to AP2, AP2 performs access control and feeds back a handover request confirmation.

[0213] Step 7: AP1 judges by integrating its own and AP2 measurement information, load information, etc., and sends an RRC reconfiguration message carrying a handover command to the UE.

[0214] Embodiment Two

[0215] Figure 3 The interaction flow diagram provided by the embodiment of the disclosure in the second mobility management scenario can be understood as a scenario based on UE-RS triggering UE measurement. In the second mobility management scenario, the interaction flow includes the following steps 1 to 5: Figure 3

[0216] Step 1: UE connects to AP1 for traffic transmission, and sends UE-RS according to the protocol or network side configuration.

[0217] Wherein, the UE is in RRC_Connected state.

[0218] Step 2: Both AP1 and adjacent AP2 can listen to UE-RS and measure it.

[0219] Steps 3-4: (Optionally) When the UE-RS measurement result of AP1 is lower than a predetermined threshold, or other trigger conditions are met, such as AP1 congestion or inability to meet UE service requirements, a UE-RS listening request is sent to adjacent AP2. AP2 reports and sends UE-RS measurement to AP1.

[0220] ​Step 5: APl triggers the measurement procedure based on the downlink reference signal based on the multiple measurement results of UE-RS (including the measurement results of APl and the measurement results of AP2) and / or the preset area where the UE is located, sends the measurement configuration information (i.e. measurement control delivery) to the UE, and receives the measurement results reported by the UE (i.e. measurement report reporting).

[0221] Embodiment Three

[0222] Figure 4 The interaction flow diagram in the mobility management scenario three provided by the embodiments of the present disclosure can be understood as a scenario of triggering service area change based on UE-RS. In the mobility management scenario three, the interaction flow includes the following steps 1 to 3. Figure 4

[0223] Step 1: The UE is connected to an AP for service transmission, and sends UE-RS according to the protocol or network side configuration.

[0224] In the step, the UE is in the RRC connected state (UE in RRC_Connected).

[0225] Step 2: The AP listens to the UE-RS and measures the UE-RS.

[0226] Step 3: The AP sends a change indication to the UE through the RRC reconfiguration message according to the UE-RS measurement result and its own load information.

[0227] In the step, the change indication can be a cell change command or based on CHO (Conditional Hand Over), LTM (L1 / L2-Triggered Mobility), etc.

[0228] Embodiment Four

[0229] Figure 5 The interaction flow diagram in the mobility management scenario four provided by the embodiments of the present disclosure can be understood as a scenario of triggering AP change (in the AP set) based on UE-RS. In the mobility management scenario four, the interaction flow includes the following steps 1 to 4. Figure 5

[0230] Step 1: The UE accesses the network through an anchor AP, and other APs also provide service transmission for the UE, and sends UE-RS according to the protocol or network side configuration.

[0231] Step 2: The APs in the APG maintained by the anchor AP need to listen to and measure the UE-RS.

[0232] ​​Step 3: The anchor AP obtains the APG-UE-RS measurement results and AP load information, makes an AP change decision, and configures the related AP.

[0233] Step 4: The anchor AP sends a change indication to the UE through an RRC reconfiguration message.

[0234] The change indication can be a cell change command or based on CHO (Conditional Hand Over), LTM (L1 / L2-Triggered Mobility), etc.

[0235] It should be noted that, for the foregoing method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art can understand that the disclosure embodiments are not limited by the described action sequence, because according to the disclosure embodiments, certain steps can be performed in other sequences or simultaneously. In addition, those skilled in the art can understand that the embodiments described in the specification all belong to optional embodiments.

[0236] Figure 6 A schematic diagram of a mobility management device provided by the disclosure is provided, which is applied to a network side access point AP, as shown in the figure, the mobility management device includes but is not limited to: a listening unit 61, a measurement unit 62, a triggering unit 63 and a management unit 64, and the specific description is as follows: Figure 6

[0237] The listening unit 61 is used for listening to the reference signal sent by the terminal;

[0238] The measurement unit 62 is used for measuring the reference signal to obtain a measurement result;

[0239] The triggering unit 63 is used for triggering inter-AP interface interaction to obtain multiple measurement results of the reference signal;

[0240] The management unit 64 is used for performing mobility management on the terminal based on the multiple measurement results.

[0241] In some embodiments, the reference signal includes a terminal identifier and auxiliary information;

[0242] The terminal identifier is a trusted terminal identifier uniquely identified by the network side or a trusted terminal identifier uniquely identified in an AP set maintained by the anchor AP, and the anchor AP is an access point connected with the core network;

[0243] The auxiliary information includes at least one of the following:

[0244] The AP identifier currently connected by the terminal, the service area indication. ​

[0245] In some embodiments, the monitoring unit 61 is configured to perform any one of the following:

[0246] continuously monitoring the reference signal transmitted by the terminal;

[0247] periodically monitoring and / or conditionally monitoring the reference signal transmitted by the terminal based on a protocol provision or network configuration;

[0248] monitoring the reference signal transmitted by the terminal based on an indication of the anchor AP.

[0249] In some embodiments, the mobility management apparatus further comprises a sending unit configured to:

[0250] The measurement unit 62 measures the reference signal, and after obtaining the measurement result, sends a monitoring request of the reference signal of the terminal to at least one neighboring AP if the measurement result is lower than a preset threshold, the load of the AP is higher than a preset load threshold, or the AP cannot meet the service requirement of the terminal; or sends the monitoring request of the reference signal of the terminal to the anchor AP, and the anchor AP sends the monitoring request to at least one AP.

[0251] In some embodiments, the triggering unit 63 is configured to:

[0252] obtain the measurement result of the reference signal by the at least one neighboring AP through inter-AP interface interaction.

[0253] In some embodiments, the triggering unit 63 comprises at least one of the following triggering manners:

[0254] the neighboring AP monitors the reference signal transmitted by the terminal;

[0255] the neighboring AP monitors the reference signal transmitted by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold;

[0256] the neighboring AP monitors the reference signal transmitted by the terminal after the AP sends a measurement report request of the reference signal to the neighboring AP through an inter-AP interface;

[0257] the neighboring AP monitors the reference signal transmitted by the terminal after the AP sends a measurement report request of the reference signal to the neighboring AP through an inter-AP interface, and the quality of the reference signal is higher than a preset quality threshold and / or the strength of the reference signal is higher than a preset strength threshold;

[0258] the AP is an anchor AP, and the neighboring AP is an AP in a set of APs maintained by the anchor AP.

[0259] In some embodiments, the measurement report request of the reference signal comprises at least one of the following:

[0260] terminal information, AP information, a handover request message;

[0261] The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal.

[0262] The AP information includes at least one of the following: an identifier of a source AP, load information of the source AP, and a measurement result of a reference signal of the terminal by the source AP.

[0263] In some embodiments, the triggering unit 63 is configured to:

[0264] obtain, through an inter-AP interface, a measurement report sent by at least one neighboring AP, wherein the measurement report includes at least one of the following:

[0265] terminal information, AP information, a handover request confirmation message;

[0266] The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal.

[0267] The AP information includes at least one of the following: an identifier of a destination AP, a measurement result of a reference signal of the terminal by the neighboring AP, and load information of the neighboring AP.

[0268] In some embodiments, the mobility management apparatus further includes an instructing unit configured to:

[0269] After the listening unit 61 listens to the reference signal sent by the terminal, instruct the terminal to measure the downlink reference signal and report a measurement result based on a preset condition.

[0270] Correspondingly, the management unit 64 is configured to:

[0271] based on the plurality of measurement results and the measurement result reported by the terminal, perform mobility management on the terminal.

[0272] In some embodiments, the preset condition includes at least one of the following:

[0273] the quality of the reference signal is lower than a preset quality threshold, the intensity of the reference signal is lower than a preset intensity threshold, the terminal leaves or enters a preset area.

[0274] The preset area includes at least one of the following:

[0275] a notification area based on a radio access network (RAN), a cell, and a preset geographic area.

[0276] In some embodiments, the management unit 64 is configured to:

[0277] based on the plurality of measurement results, determine an AP and / or a service area to be changed by the terminal.

[0278] The terminal is sent a change indication, and the change indication includes the changed AP and / or service area.

[0279] In some embodiments, if the AP is an anchor AP, the change indication includes changing the AP and / or service area in the AP-maintained AP set.

[0280] Figure 6 Details of the embodiments of the mobility management apparatus shown can be found in the foregoing method embodiments. Figure 1 Details of the embodiments of the mobility management method shown are not repeated here to avoid repetition.

[0281] In some embodiments, the embodiments of the present disclosure also provide a mobility management apparatus applied to a terminal, and the apparatus includes:

[0282] The sending unit is configured to send a reference signal to at least one network-side AP, the reference signal is used by the at least one AP to perform measurement to obtain at least one measurement result, and the at least one measurement result is used by the at least one AP to perform mobility management on the terminal.

[0283] In some embodiments, the apparatus further includes a processing unit configured to, after the sending unit sends the reference signal to the at least one network-side AP, perform the following steps:

[0284] Receive indication information sent by the at least one AP, the indication information is used to instruct the terminal to perform measurement on the downlink reference signal and report the measurement result;

[0285] Perform measurement on the downlink reference signal of the at least one AP to obtain at least one measurement result;

[0286] Send the at least one measurement result to the corresponding AP.

[0287] Details of the embodiments are described with reference to the foregoing method embodiments, and are not repeated here to avoid repetition.

[0288] The embodiments of the present disclosure also provide a processor-readable storage medium, which stores a program for causing a processor to perform the steps of the embodiments of the mobility management method. The processor-readable storage medium can be any available medium or data storage device that a processor can access, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid-state disk (SSD), etc.).

[0289] Figure 7 A schematic diagram of a network-side AP provided by the embodiments of the present disclosure is shown in FIG. 1.Figure 7 As shown in the figure, the network side access point AP includes a memory 71, a transceiver 72, and a processor 73:

[0290] The memory 71 is configured to store a computer program; the transceiver 72 is configured to transceive data under the control of the processor 73; and the processor 73 is configured to read the computer program in the memory 71 and perform the following steps:

[0291] listening to a reference signal sent by a terminal;

[0292] measuring the reference signal to obtain a measurement result;

[0293] triggering inter-AP interface interaction to obtain multiple measurement results of the reference signal;

[0294] based on the multiple measurement results, performing mobility management on the terminal.

[0295] In some embodiments, the reference signal includes a terminal identifier and auxiliary information;

[0296] The terminal identifier is a trusted terminal identifier uniquely identified by the network side or a trusted terminal identifier uniquely identified in an AP set maintained by an anchor AP, which is an access point connected to a core network;

[0297] The auxiliary information includes at least one of the following:

[0298] an AP identifier to which the terminal is currently connected, and a service area indication.

[0299] In some embodiments, listening to the reference signal sent by the terminal includes any of the following:

[0300] continuously listening to the reference signal sent by the terminal;

[0301] periodically listening and / or conditionally listening to the reference signal sent by the terminal based on a protocol or network configuration;

[0302] listening to the reference signal sent by the terminal based on an indication of an anchor AP.

[0303] In some embodiments, after measuring the reference signal to obtain the measurement result, the processor 73 is further configured to:

[0304] if the measurement result is lower than a preset threshold, the load of the AP is higher than a preset load threshold, or the AP cannot meet the service requirement of the terminal, sending a listening request of the reference signal of the terminal to at least one neighboring AP; or sending a listening request of the reference signal of the terminal to an anchor AP, and the anchor AP sends the listening request to at least one AP.

[0305] In some embodiments, triggering inter-AP interface interaction to obtain multiple measurement results of the reference signal includes:

[0306] obtaining, through inter-AP interface interaction, a measurement result of the reference signal by at least one neighboring AP.

[0307] In some embodiments, the inter-AP interface interaction is triggered to obtain multiple measurement results of the reference signal, including at least one of the following triggering manners:

[0308] the neighboring AP listens to the reference signal sent by the terminal;

[0309] the neighboring AP listens to the reference signal sent by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the intensity of the reference signal is higher than a preset intensity threshold;

[0310] the neighboring AP listens to the reference signal sent by the terminal after the AP sends a measurement report request of the reference signal to the neighboring AP through the inter-AP interface;

[0311] the neighboring AP listens to the reference signal sent by the terminal after the AP sends a measurement report request of the reference signal to the neighboring AP through the inter-AP interface, and the quality of the reference signal is higher than a preset quality threshold and / or the intensity of the reference signal is higher than a preset intensity threshold;

[0312] the AP is an anchor AP, and the neighboring AP is an AP in a set of APs maintained by the anchor AP.

[0313] In some embodiments, the measurement report request of the reference signal includes at least one of the following:

[0314] terminal information, AP information, and a handover request message;

[0315] The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal.

[0316] The AP information includes at least one of the following: an identifier of the source AP, load information of the source AP, and a measurement result of the reference signal of the terminal by the source AP.

[0317] In some embodiments, the measurement result of the reference signal by at least one neighboring AP is obtained through inter-AP interface interaction, including:

[0318] The measurement report sent by at least one neighboring AP is obtained through the inter-AP interface, and the measurement report includes at least one of the following:

[0319] terminal information, AP information, and a handover request confirmation message;

[0320] The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal.

[0321] The AP information includes at least one of the following: an identifier of a target AP, a measurement result of a reference signal of a neighboring AP on the terminal, and load information of the neighboring AP.

[0322] In some embodiments, the processor 73 is further configured to:

[0323] After listening to the reference signal sent by the terminal, instruct the terminal to measure the downlink reference signal and report the measurement result based on a preset condition;

[0324] Correspondingly, based on the multiple measurement results, the terminal is subjected to mobility management, including:

[0325] Based on the multiple measurement results and the measurement result reported by the terminal, the terminal is subjected to mobility management.

[0326] In some embodiments, the preset condition includes at least one of the following:

[0327] The quality of the reference signal is lower than a preset quality threshold, the intensity of the reference signal is lower than a preset intensity threshold, the terminal leaves or enters a preset area;

[0328] The preset area includes at least one of the following:

[0329] A notification area based on RAN, a cell, and a preset geographical area.

[0330] In some embodiments, based on the multiple measurement results, the terminal is subjected to mobility management, including:

[0331] Based on the multiple measurement results, the AP and / or service area to be changed by the terminal are determined;

[0332] A change instruction is sent to the terminal, and the change instruction includes the changed AP and / or service area.

[0333] In some embodiments, if the AP is an anchor AP, the change instruction includes the changed AP and / or service area in a set of APs maintained by the AP.

[0334] Figure 7The transceiver 72 is configured to receive and transmit data under the control of the processor 73. The bus architecture can include any number of interconnecting buses and bridges, and the various circuitry representative of the processor 73 and the memory 71 that can be linked through a bus architecture, as the processor 73 is a representative of one or more processors and the memory 71 is a representative of the memory of the various circuits of the bus architecture. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuitry, all of which are well known in the art, and thus, need not be further described herein. The bus interface provides an interface. The transceiver 72 can be a plurality of elements, including a transmitter and a receiver, which provides a means for communicating with various other apparatus over a transmission medium, including a wireless channel, a wired channel, optical cable, and the like. The processor 73 is responsible for managing the bus architecture and general processing, and the memory 71 can store data used by the processor 73 in executing its operations.

[0335] Figure 7 The processor 73 can be an integrated circuit chip that has a processing capability of signals. In implementation, each step of the above method can be completed by integrated logic circuit of hardware in the processor 73 or by instructions in the form of software. The processor 73 can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The general processor can be a microprocessor or the processor can also be any conventional processor.

[0336] Figure 8 A schematic diagram of a network side access point provided by an embodiment of the present disclosure is shown in FIG. 1. As shown in FIG. 1, the network side access point AP includes a memory 81, a transceiver 82, and a processor 83. Figure 8

[0337] The memory 81 is configured to store a computer program; the transceiver 82 is configured to receive and transmit data under the control of the processor 83; and the processor 83 is configured to read the computer program in the memory 81 and perform the following operations:

[0338] The processor 83 is further configured to send a reference signal to at least one network side access point AP, the reference signal being used by the at least one AP to measure the reference signal to obtain at least one measurement result, the at least one measurement result being used by the at least one AP to perform mobility management on the terminal.

[0339] In some embodiments, after sending the reference signal to the at least one network side access point AP, the processor 83 is further configured to: ​

[0340] receiving indication information sent by the at least one AP, the indication information being used to instruct the terminal to measure the downlink reference signal and report the measurement result;

[0341] measuring the downlink reference signal of the at least one AP to obtain at least one measurement result;

[0342] sending the at least one measurement result to the corresponding AP.

[0343] Details of the embodiments are described with reference to the foregoing method embodiments, and are not described again to avoid repetition.

[0344] It should be noted that in this document, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising" does not exclude the presence of other identical elements in the process, method, article or apparatus that includes the element.

[0345] Those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not others, the combination of features of different embodiments means within the scope of the disclosure and forms different embodiments.

[0346] Those skilled in the art can understand that the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can refer to the relevant description of other embodiments.

[0347] Although the embodiments of the present disclosure are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A mobility management method applied to an access point (AP) at a network side, the method comprising: listening to a reference signal sent by a terminal by the AP; measuring the reference signal by the AP to obtain a measurement result; triggering inter-AP interface interaction by the AP to obtain a plurality of measurement results of the reference signal; and performing mobility management on the terminal by the AP based on the plurality of measurement results. The reference signal comprises a terminal identifier and auxiliary information. The terminal identifier is a trusted terminal identifier identified by the network side or a trusted terminal identifier identified in an AP set maintained by an anchor AP, wherein the anchor AP is an AP connected to a core network. The auxiliary information comprises at least one of the following: an AP identifier currently connected to the terminal, and a service area indication. The AP listens to the reference signal sent by the terminal in any of the following ways: the AP continuously listens to the reference signal sent by the terminal; the AP periodically listens to and / or conditionally listens to the reference signal sent by the terminal based on a protocol or network configuration; and the AP listens to the reference signal sent by the terminal based on an indication of the anchor AP.

2. The method of claim 1, wherein, After the AP measures the reference signal to obtain the measurement result, the method further comprises: if the measurement result is lower than a preset threshold, a load of the AP is higher than a preset load threshold, or the AP cannot meet a service requirement of the terminal, the AP sends a listening request of the reference signal of the terminal to at least one neighboring AP; or the AP sends the listening request of the reference signal of the terminal to the anchor AP, and the anchor AP sends the listening request to at least one AP. The AP triggers inter-AP interface interaction to obtain the plurality of measurement results of the reference signal, including: the AP obtains the measurement result of the reference signal by the at least one neighboring AP through inter-AP interface interaction. The AP triggers inter-AP interface interaction to obtain the plurality of measurement results of the reference signal in at least one of the following triggering ways: the neighboring AP listens to the reference signal sent by the terminal; the neighboring AP listens to the reference signal sent by the terminal, and a quality of the reference signal is higher than a preset quality threshold and / or a strength of the reference signal is higher than a preset strength threshold; after the AP sends a measurement report request of the reference signal to the neighboring AP through the inter-AP interface, the neighboring AP listens to the reference signal sent by the terminal; after the AP sends the measurement report request of the reference signal to the neighboring AP through the inter-AP interface, the neighboring AP listens to the reference signal sent by the terminal, and the quality of the reference signal is higher than the preset quality threshold and / or the strength of the reference signal is higher than the preset strength threshold; and the AP is the anchor AP, and the neighboring AP is an AP in the AP set maintained by the anchor AP. The measurement report request of the reference signal comprises at least one of the following: terminal information, AP information, and a handover request message.

3. The method of claim 1, wherein, The terminal information comprises an identifier of the terminal or an identifier of a set containing the terminal. ​ ​ ​ 4. The method of claim 1, wherein, ​ ​ 5. The method according to any one of claims 1 to 4, wherein, ​ ​ 6. The method of claim 5, wherein, ​ ​ ​ ​ ​ ​ 7. The method of claim 6, wherein, ​ ​ ​ The AP information includes at least one of the following: source AP identifier, load information of the source AP, and measurement result of the reference signal of the terminal by the source AP.

8. The method of claim 5, wherein, The AP obtains the measurement result of the reference signal by the at least one neighboring AP through inter-AP interface interaction, including: The AP obtains the measurement report sent by the at least one neighboring AP through the inter-AP interface, wherein the measurement report includes at least one of the following: Terminal information, AP information, and handover request confirmation message; The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal. The AP information includes at least one of the following: destination AP identifier, measurement result of the reference signal of the terminal by the neighboring AP, and load information of the neighboring AP.

9. The method of claim 1, wherein, After the AP listens to the reference signal sent by the terminal, the method further includes: The AP instructs the terminal to measure the downlink reference signal and report the measurement result based on a preset condition; The AP performs mobility management on the terminal based on the plurality of measurement results, including: The AP performs mobility management on the terminal based on the plurality of measurement results and the measurement result reported by the terminal.

10. The method of claim 9, wherein, The preset condition includes at least one of the following: The quality of the reference signal is lower than a preset quality threshold, the intensity of the reference signal is lower than a preset intensity threshold, the terminal leaves or enters a preset area; The preset area includes at least one of the following: RAN-based notification area, cell, and preset geographical area.

11. The method of claim 1, wherein, The AP performs mobility management on the terminal based on the plurality of measurement results, including: The AP determines the changed AP and / or service area of the terminal based on the plurality of measurement results; The AP sends a change instruction to the terminal, and the change instruction includes the changed AP and / or service area.

12. The method of claim 11, wherein, If the AP is an anchor AP, the change instruction includes the changed AP and / or service area in a set of APs maintained by the AP.

13. A mobility management method applied to a terminal, the method including: sending a reference signal to at least one network-side access point (AP), wherein the reference signal is used for at least one AP to measure the reference signal to obtain at least one measurement result, and the at least one measurement result is used for the at least one AP to perform mobility management on the terminal.

14. The method of claim 13, wherein, After the reference signal is sent to the at least one network-side AP, the method further includes: receiving indication information sent by the at least one AP, wherein the indication information is used to instruct the terminal to measure a downlink reference signal and report a measurement result; measuring the downlink reference signal of the at least one AP to obtain at least one measurement result; sending the at least one measurement result to a corresponding AP.

15. A mobility management device applied to a network-side access point (AP), the device including: a listening unit configured to listen to a reference signal sent by a terminal; a measurement unit configured to measure the reference signal to obtain a measurement result; a triggering unit configured to trigger inter-AP interface interaction to obtain a plurality of measurement results of the reference signal; The management unit is configured to perform mobility management on the terminal based on the multiple measurement results.

16. A mobility management apparatus applied to a terminal, the apparatus comprising: a sending unit configured to send a reference signal to at least one network-side access point (AP), the reference signal being used by the at least one AP to perform measurement to obtain at least one measurement result, the at least one measurement result being used by the at least one AP to perform mobility management on the terminal.

17. A network-side access point, wherein, The network-side access point (AP) comprises a memory, a transceiver, and a processor. The memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following steps: listening to a reference signal sent by the terminal; performing measurement on the reference signal to obtain a measurement result; triggering inter-AP interface interaction to obtain multiple measurement results of the reference signal; performing mobility management on the terminal based on the multiple measurement results.

18. The network-side access point of claim 17, wherein, The reference signal comprises a terminal identifier and auxiliary information; The terminal identifier is a trusted terminal identifier recognized by the network side or a trusted terminal identifier recognized in an AP set maintained by an anchor AP, the anchor AP being an access point connected to a core network; The auxiliary information comprises at least one of the following: an AP identifier to which the terminal is currently connected, and a service area indication.

19. The network-side access point of claim 17, wherein, The listening to the reference signal sent by the terminal comprises any of the following: continuously listening to the reference signal sent by the terminal; periodically listening and / or conditionally listening to the reference signal sent by the terminal based on a protocol specification or network configuration; listening to the reference signal sent by the terminal based on an indication of the anchor AP.

20. The network-side access point of claim 17, wherein, After the measurement result is obtained, the processor is further configured to: if the measurement result is lower than a preset threshold, a load of the AP is higher than a preset load threshold, or the AP cannot meet a service requirement of the terminal, sending a listening request for the reference signal of the terminal to at least one neighboring AP; or sending the listening request for the reference signal of the terminal to an anchor AP, the listening request being sent by the anchor AP to at least one AP.

21. The network-side access point of any of claims 17 to 20, wherein, The triggering of the inter-AP interface interaction to obtain the multiple measurement results of the reference signal comprises: obtaining the measurement result of the reference signal by the at least one neighboring AP through inter-AP interface interaction.

22. The network-side access point of claim 21, wherein, The triggering of the inter-AP interface interaction to obtain the multiple measurement results of the reference signal comprises at least one of the following triggering manners: the neighboring AP listens to the reference signal sent by the terminal; the neighboring AP listens to the reference signal sent by the terminal, and a quality of the reference signal is higher than a preset quality threshold and / or a strength of the reference signal is higher than a preset strength threshold; the AP sends a measurement report request for the reference signal to the neighboring AP through the inter-AP interface, and the neighboring AP listens to the reference signal sent by the terminal. The AP sends a measurement report request of the reference signal to a neighboring AP through an inter-AP interface, the neighboring AP listens to the reference signal sent by the terminal, and the quality of the reference signal is higher than a preset quality threshold and / or the intensity of the reference signal is higher than a preset intensity threshold; The AP is an anchor AP, and the neighboring AP is an AP in an AP set maintained by the anchor AP.

23. The network-side access point of claim 22, wherein, The measurement report request of the reference signal includes at least one of the following: Terminal information, AP information, and a handover request message; The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal. The AP information includes at least one of the following: a source AP identifier, load information of the source AP, and a measurement result of the reference signal of the terminal by the source AP.

24. The network-side access point of claim 21, wherein, The at least one measurement result of the reference signal by the neighboring AP includes at least one of the following: Terminal information, AP information, and a handover request confirmation message; The terminal information includes an identifier of the terminal or an identifier of a set containing the terminal. The AP information includes at least one of the following: a destination AP identifier, a measurement result of the reference signal of the terminal by the neighboring AP, and load information of the neighboring AP. The processor is further configured to:

25. The network-side access point of claim 17, wherein, After listening to the reference signal sent by the terminal, instruct the terminal to measure the downlink reference signal and report a measurement result based on a preset condition; The mobility management of the terminal based on the multiple measurement results includes: The mobility management of the terminal based on the multiple measurement results and the measurement result reported by the terminal. The preset condition includes at least one of the following:

26. The network-side access point of claim 25, wherein, The quality of the reference signal is lower than a preset quality threshold, the intensity of the reference signal is lower than a preset intensity threshold, the terminal leaves or enters a preset area; The preset area includes at least one of the following: A RAN-based notification area, a cell, and a preset geographical area. The mobility management of the terminal based on the multiple measurement results includes:

27. The network-side access point of claim 17, wherein, Determining an AP and / or a service area changed by the terminal based on the multiple measurement results; Sending a change instruction including the changed AP and / or the service area to the terminal. If the AP is an anchor AP, the change instruction includes a change of the AP and / or the service area in an AP set maintained by the AP.

28. The network-side access point of claim 27, wherein, The terminal includes a memory, a transceiver, and a processor; 29. A terminal, wherein, The memory is configured to store a computer program, the transceiver is configured to transceive data under control of the processor, and the processor is configured to read the computer program in the memory and perform the following: Send a reference signal to at least one network-side access point AP, the reference signal is used for at least one AP to measure the reference signal to obtain at least one measurement result, and the at least one measurement result is used for the at least one AP to perform mobility management on the terminal. After sending the reference signal to at least one network-side access point AP, the processor is further configured to:

30. The terminal of claim 29, wherein, ​ receive indication information sent by at least one AP, the indication information being used to instruct the terminal to measure a downlink reference signal and report a measurement result; measure a downlink reference signal of the at least one AP to obtain at least one measurement result; send the at least one measurement result to a corresponding AP.

31. A processor-readable storage medium, wherein, The processor readable storage medium stores a program, and the program is used to make the processor execute the mobility management method in any one of claims 1 to 12 or the mobility management method in claim 13 or 14.

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