CN104080075B

CN104080075B - Obtain the method and system of user equipment servicing base station information

Info

Publication number: CN104080075B
Application number: CN201310098601.6A
Authority: CN
Inventors: 刘玉兰; 陈琳; 黄莹; 罗宇民; 马书宇; 谢峰; 鲁照华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2019-11-26
Anticipated expiration: 2033-03-25
Also published as: WO2014154014A1; CN104080075A

Abstract

The present invention provides a kind of method and systems for obtaining user equipment servicing base station information.It is related to field of communication technology；Solve the problems, such as it is existing obtain the position UE method cause signaling paths are longer, network overhead is excessive, heavier loads, delay it is larger.This method comprises: network element is identified according to the serving BS of instruction acquisition of information target UE, the network element is specially following any appliance: UE, base station, MME, DRS, Network Management System.Technical solution provided by the invention realizes the serving BS mark by the direct effective acquisition target UE of network element suitable for LTE network.

Description

Obtain the method and system of user equipment servicing base station information

Technical field

The present invention relates to field of communication technology more particularly to a kind of method for obtaining user equipment servicing base station information and it is System.

Background technique

With the development of wireless multimedia service, demand of the people to high data rate and user experience is growing, from And high requirement is proposed to the power system capacity and covering of conventional cellular network.Another aspect social networks, short distance data are total It enjoys, the prevalence of the applications such as local advertising makes interested persons or things and the demand communicated near the right solution of people (Proximity Services, adjacent service) gradually increases.Traditional cellular network centered on base station is in high data speed There are apparent limitations in terms of the support of rate and local service, under this requirement background, represent future communication technologies hair Open up the D2D(Device-to-Device of new direction, device-to-device) technology comes into being.The application of D2D technology can mitigate The burden of cellular network the battery power consumption for reducing user equipment, improves data rate, and improves the robust of network infrastructure Property, meet the requirement of above-mentioned high data rate traffic and neighbouring business service well.

D2D technology can work in authorized spectrum band or unauthorized frequency range, allow multiple user equipmenies for supporting D2D function (i.e. D2D user equipment, D2D User Equipment, D2D UE) is having network infrastructure or without the feelings of network infrastructure / direct communication is directly found under condition, the usage scenario of D2D technology, can be divided into has LTE network to cover and cover without LTE network Lid two major classes include at least following several scenes: 1) business/social use, including voice communications versus data communications, data communication again may be used It is subdivided into information sharing, information push and information exchange several ways；2) network is lightened the burden, and when network load is larger, system will be adjacent Communication switchs to D2D and is communicated between close user equipment (User Equipment, abbreviation UE)；Or it communicates between UE without core Heart net directly passes through base station local routing；3) public safety is suitable under public safety frequency spectrum, uses under no network coverage； 4) expand covering, be such as used as relaying, in network edge, signal may be poor, and the UE from base station closer distance is used as relaying, To help edge customer to be communicated.D2D technology includes that D2D discovery and D2D communicate two parts.D2D discovery refers to that discovery can be carried out The adjacent terminals of D2D communication, D2D communication are to carry out data transmission between terminal.In D2D discovery procedure, for security consideration, Or each UE distributes a discovery mark (it was found that ID), the discovery effective region ID is referred to as to find region, Mei Gefa Also there is a discovery area identification (it was found that region ID) in existing region.

In the case where there is LTE network covering, network side (including base station, MME etc.) can assist terminal to carry out D2D discovery and communication, And it realizes and D2D discovery and communication is managed and controlled.In this case, it participates between D2D discovery and two UE of communication Control signaling interacted between the corresponding serving BS of two UE.For example, in the D2D discovery procedure of base station control, Discovery signal is sent if it is discovery UE is initiated, second user equipment (UE2) listens to the hair of the first user equipment (UE1) transmission Existing signal, can reply response message, response message is transmitted to the serving BS of UE1 by the serving BS of UE2, is finally transmitted to UE1 realizes that UE1 has found UE2；If it is discovery UE monitoring discovery signal is initiated, UE1 listens to the discovery signal of UE2 transmission, UE1 sends verifying message and tests to the serving BS of oneself by the serving BS forwarding verifying message of UE1 to the serving BS of UE2 Can card UE2 be found, if verifying UE2 can be found, the serving BS of UE2 can send verifying confirmation message to the clothes of UE1 It is engaged in base station, relaying to UE1, realizes that UE1 has found UE2.In the D2D communication process of base station control, UE1 sends D2D connection and builds Vertical request message gives the serving BS of oneself, and request is established to be communicated to connect with the D2D of UE2, and the serving BS of UE1 receives this and disappears After breath, the serving BS of UE2 can be forwarded that message to, UE2 is finally forwarded that message to by the serving BS of UE2.Such as Fruit UE2 judgement can carry out D2D communication, and the response message of reply is also by the serving BS of UE2 and the serving BS of UE1, most After be transmitted to UE1, realize the foundation of the D2D communication connection between UE1 and UE2.

According to serving BS position locating for two UE for participating in D2D discovery and communication, there are two types of scenes.One is two UE is serviced by the same base station, as shown in Figure 1.In such a scenario, the signaling message between UE can be forwarded by a base station, But it is also required to base station and goes to judge two UE whether all in the serving cell of oneself.Another kind is that two UE are taken by different base stations Business, as shown in Figure 2.In such a scenario, the serving BS of UE1 needs to know the corresponding clothes of UE2 before transmitting signaling message Business base station.In existing standard, only MME just can know that the position UE, the i.e. corresponding base station serving cell connected state UE, or idle The corresponding tracing area of state UE.If UE is in Idle state, need to page within the scope of the corresponding tracing area of UE by MME UE can just find the position of UE, obtain the serving BS mark where UE.This method needs to send many signaling messages, makes It is longer at signaling paths, network overhead is excessive, heavier loads, delay it is larger, the advantage of D2D cannot be embodied.

Summary of the invention

The present invention provides a kind of method and systems for obtaining user equipment servicing base station information, solve existing acquisition UE The method of position causes that signaling paths are longer, network overhead is excessive, heavier loads, the larger problem of delay.

A method of obtaining user equipment servicing base station information, comprising:

Network element is identified according to the serving BS of instruction acquisition of information target UE, and the network element is specially following any appliance:

UE, base station, MME, D2D registrar (DRS), Network Management System.

Preferably, the network element is identified according to the serving BS of instruction acquisition of information target UE specifically:

The network element obtains the target UE according to the target UE discovery signal sent or discovery signal response message Serving BS mark.

Preferably, the network element obtains institute according to the target UE discovery signal sent or discovery signal response message The serving BS for stating target UE, which identifies, includes:

The network element receives the discovery signal that the target UE is sent or discovery signal response message, believes from the discovery Number or discovery signal response message in parse discovery signal or find signal response message carry information, further according to this Information obtains the serving BS mark of the target UE.

Preferably, the network element receives the discovery signal or find that signal response message is specially that the target UE is sent The network element directly receives the discovery signal or discovery signal response message from the target UE, or is turned by other network elements Send discovery signal described in indirect reception or discovery signal response message.

Other described network elements include other UE, base station, the MME, DRS, Network Management System other than the target UE.

Preferably, the information that the discovery signal or discovery signal response message carry is specially to indicate serving BS mark The information of the information of knowledge, the instruction serving BS mark includes any of following information or any a variety of:

Base Station Identification (eNB ID), global unique cell identification (ECGI), Physical Cell Identifier (PCI), IP address.

Preferably, it is described discovery signal or find signal response message carry information be specially the discovery signal or Person has found that the resource of signal response message, the discovery signal or the resource for finding signal response message include discovery signal institute Be related to using time domain, frequency domain and code domain.

Preferably, further according to the information, the serving BS mark for obtaining the target UE includes:

The network element is responded from the discovery signal sent of target UE described in the acquisition of information locally saved or discovery signal The resource of message and the mapping relations of Base Station Identification, alternatively,

The network element obtains the discovery signal that the target UE is sent or discovery signal response message from other network elements Resource and Base Station Identification mapping relations；

The network element sends discovery signal according to the target UE or finds that the resource of signal response message and base station are marked The mapping relations of knowledge obtain the serving BS mark of the target UE.

Other described network elements include UE, base station, MME, DRS, Network Management System.

Preferably, the method for above-mentioned acquisition user equipment servicing base station information further include:

It is held consultation by adjacent base station, a resource collection is distributed in each base station, and the UE of different base station service is not using Same resource sends discovery signal and perhaps finds that the UE transmission of each base station service of signal response message finds signal or discovery There are one-to-one relationship in the resource of signal response message and the base station, and the one-to-one relationship constitutes UE and sends discovery letter Number or discovery signal response message resource and base station mapping relations；

The discovery signal finds that the resource of signal response message is distributed by following any appliance:

Base station, MME, D2D registrar, Network Management System.

Preferably, network element is identified according to the serving BS of instruction acquisition of information target UE specifically:

The network element obtains the serving BS of opposite end UE according to the discovery area identification (it was found that region ID) of the target UE Mark；

The discovery region ID is carried in following any message:

It was found that signal, finds signal response message, request message, paging message are established in D2D connection.

Preferably, the network element identifies packet according to the serving BS that the discovery region ID of the target UE obtains opposite end UE It includes:

The network element from described in the acquisition of information locally saved find region ID and Base Station Identification mapping relations, alternatively,

The network element obtains the mapping relations of discovery the region ID and Base Station Identification from other network elements；

The network element obtains the service base of the target UE according to the mapping relations of discovery the region ID and Base Station Identification Station identifications.

Preferably, the network element obtains the target UE according to the mapping relations of discovery the region ID and Base Station Identification Serving BS mark include:

It is the corresponding base station a discovery region ID in the discovery region ID and the mapping relations of Base Station Identification, or When one discovery region ID corresponds to one or more cells below a base station, the network element is directly according to the discovery region ID derives the serving BS mark of the target UE；

The discovery region ID and the mapping relations of Base Station Identification be the corresponding multiple base stations a discovery region ID or When cell below multiple base stations, the network element derives the target UE's according to the discovery region ID and auxiliary information Serving BS mark, the auxiliary information include discovery ID.

Preferably, the discovery region ID is by base station, MME, D2D registrar, Network Management System or other nets Member distribution.

Preferably, the discovery region ID is specially to hold consultation between base station by base station distribution, is the target UE points The discovery region ID not conflicted with discovery region ID corresponding with adjacent base station.

The network element identifies the serving BS mark that (it was found that ID) obtains the target UE according to the discovery of the target UE；

The discovery ID is carried in following any message:

Preferably, the network element obtains the serving BS mark packet of the target UE according to the discovery ID of the target UE It includes:

The network element from target UE described in the acquisition of information locally saved discovery ID and Base Station Identification mapping relations, or Person,

The network element obtains the mapping relations of the discovery ID and Base Station Identification of the target UE from other network elements；

The network element is according to the mapping relations for finding ID and Base Station Identification, to obtain the serving BS of the target UE Mark.

When distributing discovery ID for UE, negotiate to distribute different discovery ID set for the UE under adjacent base station by base station, Each discovery ID correspondence uniquely determines Base Station Identification；Or,

When distributing discovery ID for UE, different discovery ID is distributed for the UE under adjacent base station by MME and is gathered, each discovery ID correspondence uniquely determines Base Station Identification；Or,

When distributing discovery ID for UE, different discovery ID collection is distributed for the UE under adjacent base station by D2D registrar It closes, each discovery ID correspondence uniquely determines Base Station Identification；Or,

When distributing discovery ID for UE, different discovery ID collection is distributed for the UE under adjacent base station by Network Management System It closes, each discovery ID correspondence uniquely determines Base Station Identification.

Preferably, the D2D registrar is an independent network element, or with base station or MME or Network Management Department System or other nodes are in the same network element.

The present invention also provides a kind of methods for obtaining user equipment servicing base station information, comprising:

The serving BS that network element obtains target UE by sending paging message identifies；

The network element is specially following any appliance:

UE, base station, MME, DRS.

Preferably, the network element is specially source UE, and the network element obtains the service of target UE by sending paging message Base Station Identification includes:

Source UE carries paging message in discovery signal and is sent to opposite end network element, and target UE is contained in the paging message Mark, the opposite end network element be following any appliance:

Target UE, base station, MME, D2D registration service base station, Network Management System,

The mark of the target UE includes S-TMSI, IMSI, GUTI, discovery ID, IP address；

The source UE receives the page-response message that opposite end network element is sent, and carries target UE in the page-response message Serving BS mark.

The sending method that the source UE sends the discovery signal is broadcast or unicast or multicast.

Preferably, it after the source UE carries the step of paging message is sent to opposite end network element in finding signal, also wraps It includes:

The target UE is listened in the discovery signal that the source UE is sent and is carried paging message, judges the paging message It whether is paging target UE；

When determining that the source UE calls the target UE, the target UE replys page-response message to the source UE, The serving BS mark of oneself is carried in the page-response message；

When determining target UE described in the source UE and non-call, the target UE ignores the paging message.

Preferably, the target UE, which is listened in the discovery signal that the source UE is sent, carries paging message, described in judgement Whether paging message is paging target UE specifically:

The target UE judges that the UE carried in the paging message mark and the UE of target UE itself are identified whether Match；The UE mark includes S-TMSI, IMSI, GUTI, discovery ID, IP address；

In matching, the target UE judges that the paging message is the paging target UE itself；

When mismatching, the target UE judges whether the paging message pages target UE itself.

Preferably, the target UE replys page-response message to the source UE specifically:

The target UE directly replys page-response message to the source UE；Or,

The target UE passes through described in base station and/or MME and/or D2D registrar and/or Network Management System forwarding Page-response message gives the source UE.

Preferably, the target UE includes: to source UE reply page-response message

The target UE judges oneself state in which type, the target UE state in which type include connected state and Idle state；

The target UE executes corresponding operation according to oneself state in which type.

Preferably, according to oneself state in which type, execute corresponding operation includes: the target UE

When the target UE is in connected state, the target UE after receiving the paging message, sends page response Message gives the serving BS of oneself.

When the target UE is in Idle state, after receiving the paging message, random access is to certainly by the target UE Oneself serving BS；

After the serving BS of the target UE receives the random accessing message of target UE, page-response message is sent To the serving BS of the source UE；

After the serving BS of the source UE receives, sends page-response message and give source UE.

Preferably, after receiving the paging message, random access to oneself serving BS includes: the target UE

The target UE after receiving the paging message, carries out random access procedure immediately and/or replys page response Message；Or,

The target UE is receiving paging message after this, when the TAU period being waited to reach, is connect at random in TAU process Enter process and/or reply page-response message, the page-response message is random accessing message or TAU message or eats dishes without rice or wine to disappear Breath.

Preferably, the network element is specially base station, and network element obtains the serving BS of target UE by sending paging message Mark includes:

Base station sends paging message to adjacent base station on X2 interface, pages target UE, the adjacent base station includes and institute Stating base station has all base stations of X2 interface or in the same discovery region and has the base station of X2 interface with the base station, described to seek Message is exhaled to contain the mark of target UE, the mark of the target UE includes following any or any number of information:

S-TMSI, IMSI, GUTI, discovery ID, IP address.

The base station receives the page-response message that the adjacent base station returns, and carries mesh in the page-response message Mark the serving BS mark of UE.

Preferably, the paging message is D2D paging message.

Preferably, the base station is after sending the step of paging message is to adjacent base station on X2 interface, further includes:

The adjacent base station obtains the target UE state in which, according to institute after receiving the paging message It states target UE state in which and executes paging operation, the target UE state in which includes connected state and Idle state；Or,

The adjacent base station directly executes paging operation after receiving the paging message.

Preferably, obtaining the target UE state in which includes:

The adjacent base station searches the target UE state in which locally saved；Or,

The adjacent base station obtains the target UE state in which from the paging message；Or,

The adjacent base station obtains the state of the target UE from the message on the X2 interface that the base station is sent, described Message on X2 interface includes: base station configuration updating information, base station configuration updating confirmation message, switching request message, switches really Recognize message.

Preferably, base station is before sending the step of paging message is to adjacent base station on X2 interface further include:

The base station obtains the target UE state in which, and the specially described base station is serviced by idle message from it The there UE obtains, and the idle message includes the idle message of cellular communication, and the idle message of the cellular communication includes: random Access message, RRC connection request message, RRC connection setup complete message, RRC connection reestablishment request message, RRC connection reconstruction Complete message, RRC connection reconfiguration completes message.

Preferably, the idle message further include: request message and D2D paging request message are established in D2D connection.

The target UE sends target UE state in which to other network elements in beacon signal.

Preferably, described to include: according to target UE state in which execution paging operation

When the target UE is in connected state, whether the adjacent base station checks the target UE in the adjacent base station Serving cell or the servicing base station information that the target UE whether is saved in the adjacent base station,

When the target UE saves the target UE's in the serving cell of the adjacent base station or in the adjacent base station When servicing base station information, the adjacent base station sends page-response message to the base station, and the page-response message contains The serving BS of the target UE identifies, or indicates the target UE in the serving cell of the base station oneself；

When the target UE is in Idle state, the adjacent base station pages the target UE in the serving cell of oneself.

Preferably, after the step of adjacent base station execution paging operation, further includes:

When serving cell of the target UE in the adjacent base station, the target UE is receiving the adjacent base station transmission Paging message after, immediately carry out random access procedure and/or reply page-response message；Or,

When serving cell of the target UE in the adjacent base station, when the TAU period such as described target UE reaches, flowed in TAU Random access procedure is carried out in journey and/or replys response message；

The page-response message is specially random accessing message or TAU message or idle message.

Preferably, the network element is specially base station, and the network element obtains the service of target UE by sending paging message Base Station Identification includes:

Base station sends paging message to MME on S1 interface, pages the target UE, the paging message contains described The mark of target UE, the mark of the target UE include S-TMSI, IMSI, GUTI, discovery ID, IP address.

Preferably, the paging message further includes the target UE state in which, the target UE state in which packet Include Idle state and connected state.

Preferably, it after the step of base station sends paging message to MME on S1 interface, pages the target UE, also wraps It includes:

After the MME receives the paging message that the base station is sent, paging operation is executed.

Preferably, after the MME receives the paging message that the base station is sent, executing paging operation includes:

The MME judges whether it saves the servicing base station information of the target UE；

When the MME saves the servicing base station information of the target UE, the MME directly transmits page-response message To the base station, the serving BS mark of the target UE is carried in the page-response message.

Preferably, it after the MME judges the step of whether it saves the servicing base station information of the target UE, also wraps It includes:

When the MME does not save the servicing base station information of the target UE, the MME determines paging domain, in institute It states paging domain and sends paging message, the paging domain includes:

The neighboring community of source base station, and and source base station it is same discovery region other base stations serving cell.

Preferably, the MME determines paging domain, after the step of paging domain sends paging message, also wraps It includes:

After the target UE receives the paging message that the MME is sent, service of the random access to target UE Base station cell, and/or send the serving BS that page response disappears to target UE；

The serving BS of the target UE sends page-response message to the base station.

After the target UE receives the paging message, random access to the serving base station cell of target UE, And/or page-response message is sent to the serving BS of the target UE；

The serving BS of the target UE sends page-response message and forwards the paging message to the MME, the MME To the base station.

Network element gives D2D registrar by sending inquiry request message, to obtain the serving BS mark of target UE；

The network element is specially following any appliance:

UE, base station, MME.

Preferably, the mark of the target UE is carried in the inquiry request, the target UE's is identified as following letter What is ceased is any or any a variety of:

S-TMSI, IMSI, GUTI, discovery ID.

Preferably, the D2D registrar saves the servicing base station information of D2D UE, be an independent network element or Person is with base station or MME or Network Management System or other nodes in the same network element.

Preferably, the inquiry request message carries the cell that the serving BS mark of the target UE is inquired in instruction (IE).

Preferably, network element gives D2D registrar by sending inquiry request message, to obtain the serving BS of target UE After the step of mark, further includes:

The D2D registrar judges whether to preserve the servicing base station information of the target UE；

When judging result is to preserve the servicing base station information of the target UE, the D2D registrar transmission is looked into Response message is ask to the network element；

When judging result is the servicing base station information without saving the target UE, the D2D registrar is sent Failed message is inquired to the network element, or triggering paging process, or does not execute operation.

Preferably, the query response message carries the IE that the serving BS mark of the target UE is inquired in instruction.

Preferably, the inquiry failed message carries the serving BS mark failure of the instruction inquiry target UE IE。

Preferably, D2D registrar triggering paging process, including D2D registrar send paging message or Paging indicating message triggers base station or MME pages target UE to base station or MME.

The present invention also provides a kind of systems for obtaining user equipment servicing base station information, comprising: network element and target UE；

The network element, the serving BS mark for the target UE according to instruction acquisition of information；

The network element is specially following any appliance:

UE, base station, MME, DRS, Network Management System.

Preferably, the network element, specifically for receiving the discovery signal or discovery signal response that the target UE is sent Message, parses discovery signal from the discovery signal or discovery signal response message or discovery signal response message is taken The information of band obtains the serving BS mark of the target UE further according to the information.

Preferably, the network element obtains the service base of opposite end UE specifically for the discovery region ID according to the target UE Station identifications；

The discovery region ID is carried in following any message:

Preferably, the network element obtains the service base of the target UE specifically for the discovery ID according to the target UE Station identifications；

The discovery ID is carried in following any message:

The network element, the serving BS for obtaining the target UE by sending paging message identify；

The network element is specially following any appliance:

UE, base station, MME, DRS.

Preferably, the network element is sent to opposite end network element specifically for carrying paging message in discovery signal, described to seek It exhales and contains the mark of target UE in message, the opposite end network element is following any appliance:

The mark of the target UE include S-TMSI, IMSI, GUTI, discovery ID, IP address,

The page-response message that opposite end network element is sent is received, the service base of target UE is carried in the page-response message Station identifications.

Preferably, the target UE sentences for carrying paging message in listening to the discovery signal that the network element is sent Whether the paging message that breaks is paging target UE,

When determining that the network element calls the target UE, the source Xiang Suoshu UE replys page-response message, in the paging The serving BS mark of oneself is carried in response message；

When determining target UE described in the network element and non-call, ignore the paging message.

Preferably, which further includes adjacent base station；

The network element is specifically used for sending paging message on X2 interface to adjacent base station, pages target UE, described adjacent Base station includes having all base stations of X2 interface with the base station or in the same discovery region and having X2 interface with the base station Base station, the paging message contains the mark of target UE, and the mark of the target UE includes following any or any number of Information:

S-TMSI, IMSI, GUTI, discovery ID, IP address,

The page-response message that the adjacent base station returns is received, the clothes of target UE are carried in the page-response message Business Base Station Identification.

Preferably, the adjacent base station, for after receiving the paging message, obtaining locating for the target UE State executes paging operation according to the target UE state in which, and the target UE state in which includes connected state and sky Not busy state；Or,

After receiving the paging message, paging operation is directly executed.

Preferably, the network element is also used to before sending paging message on X2 interface to adjacent base station, is the base The UE serviced by idle message from it that stands is obtained there, and the idle message includes the idle message of cellular communication, the bee The idle message of nest communication includes: random accessing message, RRC connection request message, RRC connection setup complete message, RRC connection Reconstruction request message, RRC connection reestablishment completion message, RRC connection reconfiguration complete message.

Preferably, the target UE, it is described receiving for when serving cell of the target UE in the adjacent base station After the paging message that adjacent base station is sent, random access procedure is carried out immediately and/or replys page-response message；Or,

When serving cell of the target UE in the adjacent base station, when the TAU period being waited to reach, in TAU process carry out with Machine access procedure and/or reply response message；

Preferably, which further includes MME；

The network element is specifically used for sending paging message on S1 interface to MME, pages the target UE, the paging Message contains the mark of the target UE, and the mark of the target UE includes S-TMSI, IMSI, GUTI, discovery ID, IP Location.

The present invention also provides a kind of systems for obtaining user equipment servicing base station information, including network element, D2D registration service Device and target UE；

The network element, for giving D2D registrar by sending inquiry request message, to obtain the service base of target UE Station identifications；

The network element is specially following any appliance:

UE, base station, MME.

Preferably, the D2D registrar, for judging whether to preserve the servicing base station information of the target UE；

When judging result is the servicing base station information without saving the target UE, the D2D registrar is sent Failed message is inquired to the network element, or does not execute operation, or triggering paging process.

The present invention provides a kind of method and systems for obtaining user equipment servicing base station information, are believed by network element according to instruction Breath obtains the serving BS mark of target UE, or obtains the serving BS mark of target UE by sending paging message by network element Know, or obtain the serving BS mark of target UE to D2D registrar by sending inquiry request message by network element, realizes It is identified by the serving BS of network element direct effective acquisition target UE, solves the existing method for obtaining the position UE and cause signaling road Diameter is longer, network overhead is excessive, heavier loads, be delayed larger problem.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is that two UE are in the D2D scene figure under the same base station；

Fig. 2 is that two UE are in the D2D scene figure under different base station；

Fig. 3 is the system architecture diagram that the embodiment of the present invention is applicable in；

Fig. 4 is that a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention one provides is shown It is intended to；

Fig. 5 is that a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention two provides is shown It is intended to；

Fig. 6 is that a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention three provides is shown It is intended to；

Fig. 7 is that a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention four provides is shown It is intended to；

Fig. 8 is that a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention five provides is shown It is intended to；

Fig. 9 is that a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention six provides is shown It is intended to；

Figure 10 is a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention seven provides Schematic diagram；

Figure 11 is a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention eight provides Schematic diagram；

Figure 12 is a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention nine provides Schematic diagram；

Figure 13 is a kind of process of the method for acquisition user equipment servicing base station information that the embodiment of the present invention ten provides Schematic diagram；

Figure 14 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 11 provides Journey schematic diagram；

Figure 15 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 12 provides Journey schematic diagram；

Figure 16 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 13 provides Journey schematic diagram；

Figure 17 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 14 provides Journey schematic diagram；

Figure 18 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 15 provides Journey schematic diagram；

Figure 19 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 16 provides Journey schematic diagram；

Figure 20 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 17 provides Journey schematic diagram；

Figure 21 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 18 provides Journey schematic diagram；

Figure 22 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 19 provides Journey schematic diagram；

Figure 23 is a kind of stream of the method for acquisition user equipment servicing base station information that the embodiment of the present invention 20 provides Journey schematic diagram；

Figure 24 is a kind of method for acquisition user equipment servicing base station information that the embodiment of the present invention 21 provides Flow diagram.

Specific embodiment

In the case where two UE of communicating pair adhere to this scene of different base station separately, the serving BS of UE1 is in transmitting signaling message When, need the assistance of the corresponding serving BS of UE2.In existing standard, only MME just can know that the position of UE, i.e. connected state UE Corresponding base station serving cell or the corresponding tracing area of Idle state UE.If UE is in Idle state, need to exist by MME UE is paged within the scope of the corresponding tracing area of UE, can just find the position of UE, obtains the serving BS mark where UE.This side Method needs to send many signaling messages, cause signaling paths are longer, network overhead is excessive, heavier loads, be delayed larger, Bu Nengti The advantage of existing D2D.

In order to enable D2D discovery and communicate it is simpler quickly, it is desirable to provide more efficiently obtain UE serving BS letter The method of breath.

The embodiment provides a kind of method and systems for obtaining user equipment servicing base station information, hereinafter will The embodiment of the present invention is described in detail in conjunction with attached drawing.It should be noted that in the absence of conflict, in the application Feature in embodiment and embodiment can mutual any combination.

The technical solution that the embodiment of the present invention provides is applicable to the mixed communication system that cellular communication communicates composition with D2D System, as shown in figure 3, the communication system includes base station, user equipment (UE), mobile management entity (MME).User equipment can be Cellular phone, wireless phone, session startup agreement (SIP) phone, Wireless Local Loop way station (WLL), personal digital assistant (PDA), the handheld device with wireless connecting function, calculating equipment or other processing for being connected to radio modem Equipment.Base station can be used for being communicated with wireless terminal, also referred to as access point, node B or other terms.Base station and wireless Can carry out cellular communication between terminal, cellular communication may include GSM, CDMA, WCDMA, TD-SCDMA, UMTS, LTE and Other use the communication of cellular network technologies.User equipment has the function of device-to-device (D2D) discovery and/or communication, opens It has opened and can be carried out D2D discovery and/or communication between D2D discovery and/or the user equipment of communication function.User equipment can be with Signal (beacon signal) is found by sending, or receives the discovery signal (beacon signal) of other neighbor user devices, To find other neighbor user devices, or found by other neighbor user devices.In actual deployment, the quantity of user equipment Can have it is multiple, carry out D2D communication two user equipmenies can be serviced by the same base station, can also be taken by different base stations Business.

Optionally, within the system, D2D registrar can also be disposed, the user for concrete management D2D communication sets It is standby.D2D registrar can be deployed in access net, such as close and be located on the same network element with base station, or as a list Only access network elements；D2D registrar can also be deployed in core net, such as be located on the same network element with MME conjunction, or Person is as an individual core network element.D2D registrar can be used to manage D2D discovery and communication, can save UE Relevant information.

In an embodiment of the present invention, UE1 refers to source UE, and UE2 feeling the pulse with the finger-tip mark UE, eNB1 are the serving BS of UE1, and eNB2 is The serving BS of UE2, MME are mobile management entity, and DRS is D2D registrar.

The embodiment of the present invention one to embodiment five essentially describes network element according to the service of instruction acquisition of information target UE The scheme of Base Station Identification is below described in detail embodiment one to embodiment five respectively.

Embodiment one

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal is illustrated for carrying instruction information.Description It initiates discovery UE and monitors the method flow for carrying instruction information under beacon signal scene in beacon signal, as shown in figure 4, Specific step is as follows:

Step S401:UE2 sends beacon signal.

The sending method of the beacon signal can be broadcast, unicast or multicast.The transmission of the beacon signal It can be periodicity sending, can also be sent in some specific discovery time slot, or need to find other UE in target UE Or it is sent when discovery by other UE.

Step S402:UE1 listens to the beacon signal of UE2 transmission, obtains the instruction information in beacon signal.

The UE1 obtains the instruction information in beacon signal, can be direct instruction information, such as instruction service base Information, discovery area identification (it was found that region ID), discovery mark (it was found that ID) for standing etc..The relevant instruction information in the base station can Be Base Station Identification (eNB ID), global cell unique identification (ECGI), Physical Cell Identifier (PCI), IP address and other The information of base station can directly or indirectly be identified；It is also possible to indirectly indicate information, such as sends the money of beacon signal Source etc..

Embodiment two

The embodiment of the present invention is with UE1(source UE) it is network element, beacon response message is illustrated for carrying instruction information. It describes and initiates the method flow that discovery UE sends carrying instruction information in beacon response message under beacon signal scene, such as Shown in Fig. 5, the specific steps are as follows:

Step S501:UE1 sends beacon signal.

Step S502:UE2 listens to the beacon signal of UE1 transmission.

Step S503:UE2 sends beacon response message to UE1.

The servicing base station information of the UE2, including eNB can be carried in the beacon response message that the UE2 is sent ID, ECGI, PCI or other can identify the information of base station；The information such as discovery ID, discovery region ID can also be carried；Or Carry other effective information etc..

Step S504:UE1 receives the beacon response message of UE2, obtains the instruction information in beacon response message.

The UE1 obtains the instruction information in beacon response message, can be direct instruction information, such as instruction clothes Information, discovery area identification (it was found that region ID), discovery mark (it was found that ID) of business base station etc..The relevant instruction letter in the base station Breath can be Base Station Identification (eNB ID), global cell unique identification (ECGI), Physical Cell Identifier (PCI), IP address, and Other can directly or indirectly identify the information of base station；The instruction information that the UE1 is obtained in beacon response message can also To be indirect instruction information, such as send the resource etc. of beacon corresponding message.

Embodiment three

The embodiment of the present invention is with UE1(source UE) it is network element, beacon response message is illustrated for carrying instruction information. It describes and all carries instruction letter in beacon signal and beacon response message under initiation discovery UE transmission beacon signal scene The method flow of breath, as shown in Figure 6, the specific steps are as follows:

Step S601:UE1 sends beacon signal.

Step S602:UE2 listens to the beacon signal of UE1 transmission, obtains the servicing base station information of UE1.

The information carried in the beacon signal that the available UE1 of UE2 is sent, according to what is carried in beacon signal The servicing base station information of acquisition of information UE1, further, it is possible to according to the instruction information in beacon signal, such as Base Station Identification (eNB ID), global cell unique identification (ECGI), Physical Cell Identifier (PCI), IP address and other can directly or The information of indirect identification base station directly obtains the serving BS mark of UE1；Or referred to according to other carried in beacon signal Show information, such as discovery area identification (it was found that region ID), discovery mark (it was found that ID), derives the serving BS mark of UE1 Know；Or the resource of beacon signal is sent according to UE1, obtain the serving BS mark of UE1.

Step S603:UE2 sends beacon response message to eNB2.

The UE2 can carry the serving BS mark of UE1 in the response message for being sent to eNB2, can also only carry The information carried in the beacon signal that UE2 is obtained goes out UE1's according to the information inference after eNB2 receives the information Serving BS mark.

Step S604:eNB2 forwards beacon response message to the serving BS eNB1 of UE1.

ENB2 can directly acquire the information of eNB1 from UE2, can also derive eNB1 according in the information that UE2 is reported Information.

Step S605:eNB1 receives the beacon response message of eNB2 forwarding, saves the mapping relations of UE2 and eNB2.

The eNB1 saves the mapping relations of UE2 and eNB2, and the serving BS for referring to that eNB1 saves UE2 is eNB2, can be with Context as UE2 saves, and the context that can also be used as UE1 saves, or saves as other information.

Step S606:eNB1 forwards beacon response message to UE1.

The eNB1 is transmitted to the beacon response message of UE1, can carry the information of eNB2, can not also carry.

Step S607:UE1 receives the beacon response message of eNB1 forwarding, obtains the instruction letter in beacon response message Breath.

If carrying the information of eNB2 in the beacon response message of eNB1 forwarding, UE1 will obtain the information；It is no Then, it does not need.

Example four

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal or beacon response message carry instruction letter It is illustrated for breath.It describes according to instruction information is carried in beacon signal or beacon response message and obtains target The method of the serving BS mark of UE, as shown in Figure 7, the specific steps are as follows:

Step S701:UE1 receives the beacon signal or beacon response message that UE2 is sent.

The beacon signal that the UE2 is sent, is the discovery signal for finding other UE or being found by other UE.Institute The sending method for stating beacon signal can be broadcast, unicast or multicast.The transmission of the beacon signal can be the period Property send, can also be sent in some specific discovery time slot, either need to find other UE in UE2 or sent out by other UE It is sent when existing.

The beacon response message that the UE2 is sent, after being the beacon signal that UE2 receives UE1 transmission, progress Reply confirmation message.

Step S702:UE1 obtains the instruction information carried in beacon signal or beacon response message.

The instruction information carried in the beacon signal or beacon response message include Base Station Identification (eNB ID), Global cell unique identification (ECGI), Physical Cell Identifier (PCI), IP address and other can directly or indirectly identify The information of base station.

Step S703:UE1 obtains UE2 according to the instruction information carried in beacon signal or beacon response message Serving BS mark.

UE1 obtains the serving BS of UE2 according to the instruction information carried in beacon signal or beacon response message Mark, further comprise: UE1 is directly acquired according to the instruction information carried in beacon signal or beacon response message The serving BS of UE2 identifies or UE1 is according to the instruction information carried in beacon signal or beacon response message, It obtains and the serving BS of UE2 is taken to identify.

The UE1 directly acquires UE2's according to the instruction information carried in beacon signal or beacon response message Serving BS mark further comprises:

UE1 directly can know that the serving BS of UE2 identifies according to eNB ID, ECGI, PCI, IP address.

The servicing base station information of UE2 is reported to the serving BS of UE1 by step S704:UE1.

UE1 can by the message on eating dishes without rice or wine the serving base stations report of UE2 to the serving BS of UE1.It is described eat dishes without rice or wine on Message can be the idle message of existing cellular communication, or newly-increased idle message.

The idle message of the existing cellular communication includes: random accessing message, RRC connection request message, RRC connection It establishes and completes message, RRC connection reestablishment request message, RRC connection reestablishment completion message, RRC connection reconfiguration completion message, measurement Reporting message and other be used for cellular communication idle message.

The newly-increased idle message includes: that D2D connection is established request message, D2D paging request message, D2D mode and cut Change request message and other newly-increased message for D2D communication or cellular communication.

The serving BS of the servicing base station information and UE2 and UE2 of the serving BS preservation UE2 of step S705:UE1 reflects Penetrate relationship.

The serving BS of the UE1 saves the servicing base station information of UE2 and the mapping of the serving BS of UE2 and UE2 is closed System can be used as UE1 context save, can also be used as UE2 context save, can also be used as individual information preservation, Or it is saved as other information.

Embodiment five

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal or beacon response message carry instruction letter It is illustrated for breath.Another kind is described according to instruction information is carried in beacon signal or beacon response message to obtain The method for taking the serving BS of target UE to identify, as shown in Figure 8, the specific steps are as follows:

Step S801, step S802, step S805 and step S401, step S402, step in the embodiment of the present invention one S405 is identical, and details are not described herein.

Step S803:UE1 is by the instruction information reporting carried in beacon signal or beacon response message to UE1's Serving BS.

UE1 can be by the message on eating dishes without rice or wine the instruction information carried in beacon signal or beacon response message It is reported to the serving BS of UE1.It is described eat dishes without rice or wine on message can be the idle message of existing cellular communication, or it is newly-increased Idle message.

The serving BS of step S804:UE1 is believed according to the instruction carried in beacon signal or beacon response message Breath obtains the serving BS mark of UE2.

The serving BS of UE1 obtains UE2 according to the instruction information carried in beacon signal or beacon response message Serving BS mark, further comprise: the serving BS of UE1 is carried according in beacon signal or beacon response message Instruction information, the serving BS of the serving BS mark or UE1 that directly acquire UE2 according to beacon signal or The instruction information carried in beacon response message, the serving BS mark of indirect gain UE2.

The serving BS of the UE1 is according to the instruction information carried in beacon signal or beacon response message, directly It obtains and the serving BS of UE2 is taken to identify, further comprise:

The serving BS of UE1 directly can know that the serving BS of UE2 identifies according to eNB ID, ECGI, PCI, IP address.

Embodiment six

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal is illustrated for carrying instruction information.Description The resource of beacon signal or beacon response message is sent according to target UE to obtain the serving BS of target UE and identify Method, as shown in Figure 9, the specific steps are as follows:

Step S901, step S903, step S904 and the step S401 in the embodiment of the present invention one, step S404, step Rapid S405 is identical, and details are not described herein.

Step S902:UE1 sends the resource of beacon signal or beacon response message according to UE2, obtains the clothes of UE2 Business Base Station Identification.

The resource or beacon response message of the beacon signal include the time domain for finding to use involved by signal, frequency Domain and code domain etc..

The UE1 sends the resource of beacon signal or beacon response message according to UE2, obtains the service base of UE2 Station identifications further comprise:

The UE1 sends the resource of beacon signal or beacon response message and the mapping relations of base station according to UE2, Obtain the serving BS mark of UE2.

The UE sends the resource of beacon signal or beacon response message and the mapping relations of base station, can pass through Adjacent base station is held consultation, and a resource collection is distributed in each base station, and the UE of different base station service is sent using different resources The beacon signal UE that perhaps each base station of beacon response message services sends beacon signal or beacon response message Resource and the base station have one-to-one relationship；Either other can be sent beacon signal by UE or beacon is responded The resource of message determines any mapping relations of Base Station Identification.

The UE1 sends the resource of beacon signal or beacon response message and the mapping relations of base station according to UE2, The serving BS mark for obtaining UE2 further comprises:

UE is saved on UE1 sends the resource of beacon signal or beacon response message and the mapping relations of base station, Or UE1 obtains UE from other network elements there and sends the resource of beacon signal and the mapping relations of base station.

UE1 obtains resource and the base station that UE sends beacon signal or beacon response message from other network elements theres Mapping relations, can be from base station, MME, D2D registrar, Network Management System or other give beacon signal distribution The network element of resource.

The resource of the transmission beacon signal or beacon response message can be base station, MME, D2D registration service Device, Network Management System or the distribution of other network elements.

Embodiment seven

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal is illustrated for carrying instruction information.Description It is another that the resource location of beacon signal or beacon response message is sent to obtain the clothes of target UE according to target UE The method of business Base Station Identification, as shown in Figure 10, the specific steps are as follows:

Step S1001, step S1004 is identical as step S401, the step S405 in the embodiment of the present invention one, herein no longer It repeats.

Step S1002:UE1 is by the resource reporting of UE2 transmission beacon signal or beacon response message to the clothes of UE1 Business base station.

UE1 can send UE2 by the message on eating dishes without rice or wine in the resource of beacon signal or beacon response message Offer the serving BS of UE1.It is described eat dishes without rice or wine on message can be the idle message of existing cellular communication, or newly-increased sky Mouth message.

The serving BS of step S1003:UE1 sends the resource of beacon signal or beacon response message according to UE2 Obtain the serving BS mark of UE2.

The serving BS of the UE1 sends the resource of beacon signal or beacon response message according to UE2, obtains The serving BS of UE2 identifies, and further comprises:

The serving BS of the UE1 sends resource and the base station of beacon signal or beacon response message according to UE2 Mapping relations, obtain UE2 serving BS mark.

The UE2 sends the resource of beacon signal or beacon response message and the mapping relations of base station, Ke Yitong It crosses adjacent base station to hold consultation, a resource collection is distributed in each base station, and the UE below different base station is sent out using different resources Send that UE of the beacon signal perhaps below each base station of beacon response message sends beacon signal or beacon response disappears There are one-to-one relationship in the resource of breath and the base station；Either other can be sent beacon signal by UE or beacon is rung The resource of message is answered to determine any mapping relations of Base Station Identification.

The serving BS of the UE1 sends resource and the base station of beacon signal or beacon response message according to UE2 Mapping relations, obtain UE2 serving BS mark, further comprise:

Resource and base station that UE sends beacon signal or beacon response message are saved on the serving BS of UE1 The serving BS of mapping relations or UE1 obtain UE transmission beacon signal from other network elements there or beacon response disappears The resource of breath and the mapping relations of base station.

The serving BS of UE1 obtains the money that UE sends beacon signal or beacon response message from other network elements there The mapping relations in source and base station, can be from other base stations, MME, D2D registrar, Network Management System or other to The network element of beacon signal or beacon response message distribution resource.

Embodiment eight

The embodiment of the present invention describes the side that the serving BS mark of target UE is obtained according to the discovery region ID of target UE Method, as shown in figure 11, the specific steps are as follows:

Step S1101: the discovery area identification (it was found that region ID) of network element acquisition target UE.

The network element includes: UE, base station, MME, D2D registrar, Network Management System or other network elements.

The discovery region refers to for D2D discovery distribution, discovery mark effective region (it was found that ID) of UE.It is similar to Tracing area can be tracing area, may not be.

The discovery region ID can be carried in beacon signal or beacon response message, can also be carried D2D connection is established in request message, D2D paging request message, D2D mode switch request message and other message.

The UE obtains the discovery region ID of target UE, can be and obtains target from the beacon signal that target UE is sent The discovery region ID of UE；Or the discovery region ID of target UE is obtained from the beacon signal response message that target UE is sent.

The base station obtains the discovery region ID of target UE, can be from UE, MME, D2D registrar there and obtains mesh Mark the discovery region ID of UE.

The base station obtains the discovery region ID of target UE from the there UE, can be UE by idle message, is eating dishes without rice or wine to disappear The discovery region ID that target UE is carried in breath is sent to base station.It is described eat dishes without rice or wine on message can be the sky of existing cellular communication Mouth message, or newly-increased idle message.

Step S1102: network element obtains the serving BS mark of target UE according to the discovery region ID of target UE.

The network element obtains the serving BS mark of target UE according to the discovery area identification (it was found that region ID) of target UE Know, further comprise:

Network element is from the mapping relations of the acquisition of information discovery region ID and Base Station Identification locally saved or from other network elements There obtains the mapping relations of discovery region ID and Base Station Identification；

Network element is identified according to the mapping relations of discovery region ID and Base Station Identification to obtain the serving BS of target UE.

The mapping relations of discovery the region ID and base station further comprise to obtain the serving BS mark of target UE:

If it find that region ID and the mapping relations of Base Station Identification are the corresponding base station a discovery region ID, Huo Zheyi One or more serving cells below the corresponding base station a discovery region ID or other can be straight according to discovery region ID The mapping relations of determining Base Station Identification are connect, then the network element can derive the service of target UE directly according to discovery region ID Base Station Identification；

If it find that region ID and the mapping relations of Base Station Identification are the corresponding multiple base stations a discovery region ID, Huo Zheduo Serving cell below a base station or other the mapping relations of Base Station Identification cannot be directly determined according to discovery region ID, then The network element according to discovery region ID and other auxiliary informations, can derive the serving BS mark of target UE.

The auxiliary information includes: discovery ID, is to find that the base station uniquely distributed in region effectively identifies or other have Information.

The discovery region ID can be by base station, MME, D2D registrar, Network Management System or other network elements Distribution.

The discovery region ID is distributed by base station, can be by holding consultation between base station, to guarantee that adjacent base station is corresponding Discovery region ID do not conflict.

Embodiment nine

The embodiment of the present invention describes the method that the serving BS mark of target UE is obtained according to the discovery ID of target UE, such as Shown in Figure 12, the specific steps are as follows:

Step S1201: the discovery that network element obtains target UE identifies (it was found that ID).

The UE obtains the discovery ID of target UE, can be and obtains target UE's from the beacon signal that target UE is sent It was found that ID；Or the discovery ID of target UE is obtained from the beacon signal response message that target UE is sent.

The base station obtains the discovery ID of target UE, can be from UE, MME, D2D registrar there and obtains target UE Discovery ID.

The base station obtains the discovery ID of target UE from the there UE, can be UE through idle message, in idle message The discovery ID for carrying target UE is sent to base station.It is described eat dishes without rice or wine on message can be the idle message of existing cellular communication, Or newly-increased idle message.

Step S1202: network element obtains the serving BS mark of target UE according to the discovery ID of target UE.

The network element obtains the serving BS mark of target UE, further comprises according to the discovery ID of target UE:

The network element obtains the serving BS mark of target UE according to the mapping relations of the discovery ID and base station of target UE.

The mapping relations of the discovery ID and base station of the UE, can be adjacent base station and are gathered using different discovery ID, root It is found that ID can uniquely determine Base Station Identification.

The discovery ID of the UE gathers, and can be held consultation by adjacent base station, and a discovery ID collection is distributed in each base station It closes, the UE below different base station uses different discovery ID；Or different discovery ID collection is distributed the base station that it is managed by MME It closes；Or discovery ID set is distributed to base station by D2D registrar；Or discovery ID collection is distributed to base station by other network elements It closes.

The embodiment of the present invention ten to embodiment 16 essentially describes network element and obtains target UE service by paging message The method of Base Station Identification is below described in detail each embodiment.

Example ten

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal is illustrated for carrying paging message.Description The method for obtaining the serving BS of target UE by carrying paging message in beacon signal, as shown in figure 13, specifically Steps are as follows:

Step S1301:UE1 sends beacon signal, carries paging message in beacon signal.

The sending method that the UE1 sends beacon signal can be broadcast, unicast or multicast.The beacon letter Number transmission can be periodicity sending, can also be sent in some specific discovery time slot, or need to send out in target UE Show other UE or is sent when discovery by other UE.

It include the mark of UE2 in the paging message that the UE1 is carried in beacon signal.The mark of the UE2 can be with Be discovery ID, S-TMSI, IMSI, GUTI, IP address or other can identify the information of UE2.

Step S1302:UE2 receives beacon signal, judges whether the paging message carried in beacon signal is to seek Exhale oneself.

UE2 is according to the UE mark carried in paging message to determine whether being paging oneself.If carried in paging message UE mark matched with oneself UE mark, then judge that the paging message is to page oneself.It otherwise, is not paging oneself.

If UE2 judges that the paging message is to then follow the steps S03 and subsequent step paging oneself；Otherwise, ignore this to seek Exhale message.

Step S1303:UE2 executes corresponding operation, further comprises according to oneself state in which:

If UE2 is in Idle state, then UE2 random access to eNB2 sends beacon response message to UE1.

The UE2 random access can be after receiving paging message to eNB2, carry out random access procedure immediately；Or Person carries out random access procedure when the TAU period arrives in TAU process.

If UE2 is in connected state, UE2 directly transmits beacon response message to UE1.

Step S1304:UE2 random access is to eNB2.

The UE2 random access can use the random access procedure of existing cellular communication to eNB2；Or it uses and repairs The random access procedure changed；Or the random access procedure newly defined.

Step S1305:UE2 sends beacon response message to UE1.

The information of the mark of UE2 and the serving BS eNB2 of UE2 is carried in the beacon response message.

The beacon response message can be transmitted directly to UE1 by UE2, or forward by eNB2 and eNB1.

Embodiment 11

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal is illustrated for carrying paging message.Description Another method for obtaining the serving BS of target UE by carrying paging message in beacon signal, such as Figure 14 institute Show, the specific steps are as follows:

Step S1401:UE1 sends beacon signal, carries paging message in beacon signal.

The sending method that the UE1 sends beacon signal can be broadcast, unicast or multicast.

It include the mark of UE2 in the paging message that the UE1 is carried in beacon signal.The mark of the UE2 can be with Be discovery ID, S-TMSI, IMSI, IP address or other can identify the information of UE2.

Step S1402:UE2 receives beacon signal, judges whether the paging message carried in beacon signal is to seek Exhale oneself.

Step S1403:UE2 judgement lays oneself open to Idle state.

Step S1404:UE2 random access is to eNB2.

The UE2 random access can carry out random access procedure to eNB2 immediately；Or when the TAU period being waited to reach, In Random access procedure is carried out in TAU process.

The UE2 can indicate that eNB2 carries out page response to UE1 during random access.The instruction information can To be directly to indicate, or indicate indirectly.

If UE2 indicates that eNB2 carries out page response to UE1 during random access, S1406 is thened follow the steps；It is no Then follow the steps S1405.

Step S1405:UE2 sends page-response message to eNB2.

Step S1406:eNB2 sends page-response message to eNB1.

Indicate that the message is the page-response message from UE2 to UE1 in the message.

The eNB2, which sends paging message, can be page-response message of the forwarding from UE2 to eNB1, or using now Message on X2 interface have and/or newly-increased carries out page response.

Message on the existing X2 interface includes: base station configuration updating information, base station configuration updating confirmation message, base Configuration of standing updates failed message, switching request message, switching request acknowledgement message, switching preparation failed message, X2 and establishes request Message, X2 establish request response, resetting message, load information, link failure instruction message, SN state transfer message, UE Message on context release message and other X2 interface.

The message using on existing X2 interface can be and directly carry out page response with existing X2 message, or The IE that person is multiplexed existing X2 message carries out page response, or adds a new IE in existing idle message and carry out paging sound It answers.

After step S1407:eNB1 receives page-response message, page-response message is sent to UE1.

The eNB1 is sent to the page-response message of UE1, can be page-response message of the forwarding from eNB2, or The page-response message that eNB1 oneself is generated.

The eNB1 is sent to the page-response message of UE1, includes the mark of UE2 and/or the serving BS mark of UE2 Knowledge and/or some other necessary information.

The UE2 mark include discovery ID, S-TMSI, IMSI, IP address or other can identify the information of UE2.

The page-response message that the eNB1 oneself is generated can be the existing idle message of multiplexing, or newly-increased eat dishes without rice or wine Message.

The existing idle message includes: paging message, accidental access response message, RRC connection message, RRC connection Reallocation message, RRC connection reconstruction message, RRC connection release message, downlink information transmission message, UE capability query message, UE letter Cease request message, TAU message and other idle messages.

The existing idle message of multiplexing, can be and directly carry out page response, Huo Zhefu with existing idle message Page response is carried out with the IE of existing idle message, or adds a new IE in existing idle message and carries out paging sound It answers.

Embodiment 12

The embodiment of the present invention is with UE1(source UE) it is network element, beacon signal is illustrated for carrying paging message.Description Another method for obtaining the serving BS of target UE by carrying paging message in beacon signal, such as Figure 15 institute Show, the specific steps are as follows:

Step S1501:UE1 sends beacon signal, carries paging message in beacon signal.

Step S1502:UE2 receives beacon signal, judges whether the paging message carried in beacon signal is to seek Exhale oneself.

Step S1503:UE2 judgement lays oneself open to connected state.

Step S1504:UE2 sends page-response message to eNB2

The page-response message can be the existing idle message of multiplexing, or newly-increased idle message.

The existing idle message include: random accessing message, RRC connection request message, RRC connection establish complete disappear Breath, RRC connection reestablishment request message, RRC connection reestablishment completion message, RRC connection reconfiguration complete message, measurement reporting message, TAU message and other idle messages.

After step S1505:eNB2 receives the page-response message from UE2, page-response message is sent to eNB1.

The eNB2 sends page-response message to eNB1, can be page-response message of the forwarding from UE2, Huo Zheli Page response is carried out with the message on existing and/or newly-increased X2 interface.

The message using on existing X2 interface can be and directly carry out page response with existing X2 message, or The IE that person is multiplexed existing X2 message carries out page response, or adds a new IE in existing X2 message and carry out paging sound It answers.

After step S1506:eNB1 receives page-response message, page-response message is sent to UE1.

The eNB1, which sends page-response message to UE1, can be the existing idle message of multiplexing, or newly-increased eat dishes without rice or wine Message.

Embodiment 13

The embodiment of the present invention is illustrated so that base station is network element as an example.It describes and paging message is sent by base station to obtain The method of the serving BS of target UE, as shown in figure 16, the specific steps are as follows:

Step S1601: want to obtain the serving BS of target UE in base station.

The base station want obtain target UE the corresponding scene of serving BS be it is following several, base station receives source UE's Request message is established in D2D connection or base station receives the D2D paging request message of source UE or base station and to turn for source UE Message is sent out to target UE.

Step S1602: whether base station judges target UE in oneself serving cell.

The base station judges that target UE whether in oneself serving cell, further comprises:

Base station according to target UE state in which judge target UE whether in the method for the serving cell of oneself include:

If target UE is in Idle state, base station just sends paging message in the serving cell of oneself, pages target UE；

If target UE is in connected state, base station is judged as whether target UE is serviced by the base station.

Base station obtains target UE state in which, can be base station and obtains from the there source UE；Either base station from MME there It obtains；Perhaps base station obtained from D2D registrar perhaps base station from Network Management System there obtain or base station from Other network elements there obtains.

The base station obtains target UE state in which from the there source UE, can be source UE and passes through idle message for target UE State in which is sent to base station.

The idle message can be the idle message of existing cellular communication, or newly-increased idle message.

The target UE state in which can carry in the discovery signal that target UE is sent.

Step S1603: if target UE in the serving cell of oneself, just terminates to page.

If base station receives the page response of target UE, i.e. target UE random access judges mesh to the base station or base station Mark UE is serviced by the base station, then in the serving cell of oneself, base station terminates to page target UE.

Step S1604: if target UE is not in the serving cell of oneself, base station sends paging to adjacent base station or MME Message.

If base station does not receive the page response of target UE, i.e. target UE does not have random access to the base station, Huo Zheji Standing, to judge target UE not serviced by the base station, then target UE is in the serving cell of oneself, base station to adjacent base station or MME sends paging message.

The mark of target UE, target UE state in which and some other necessary are carried in the paging message Information.

Step S1605: adjacent base station or MME judge whether target UE is in connected state, execute corresponding operation.

The information in paging message that the adjacent base station or MME are sent according to base station judge target UE whether the company of being in Connect state.

Step S1606: adjacent base station or MME directly return to the servicing base station information of target UE.

If target UE is in connected state, adjacent base station judges whether target UE has connection with oneself, to decide whether to need It to be replied message to base station.If target UE has connection with adjacent base station, adjacent base station directly returns to the service base of target UE Information stand to base station.Otherwise, it does not need to reply.

If target UE is in connected state, MME judges whether to preserve the information of target UE, if there is just directly returning to mesh The servicing base station information of UE is marked to base station.Otherwise, it does not need to reply.

Step S1607: adjacent base station or MME determine paging domain, send paging message.

The determination of the paging domain includes: the neighboring community of base station, finds the cell that region includes.

Embodiment 14

The embodiment of the present invention is illustrated so that base station is network element as an example.It describes another kind and paging message is sent by base station Come obtain target UE serving BS method, as shown in figure 17, the specific steps are as follows:

Step S1701: whether base station judges target UE in oneself serving cell

Step S1702: base station judges whether target UE is in connected state.

Step S1703: base station judges whether target UE is serviced by the base station.

If target UE is in connected state, whether base station with oneself has connection according to target UE, can directly judge target Whether UE is in oneself coverage.

Step S1704: base station sends paging message in all serving cells of oneself, pages target UE.

If target UE is in Idle state, base station sends paging message in all serving cells of oneself, pages target UE.If target UE carries out page response, i.e. target UE random access to base station, then serving cell of the target UE in the base station. Otherwise, do not exist.

After the target UE receives paging message, random access procedure can be carried out immediately and/or replys page response Message；Or when the TAU period being waited to reach, random access procedure is carried out in TAU process and/or replys response message.It is described to seek Response message is exhaled to can be random accessing message, TAU message or other existing or newly-increased idle messages.

Embodiment 15

The embodiment of the present invention is illustrated so that base station is network element as an example.It describes another kind and paging message is sent by base station Come obtain target UE serving BS method, as shown in figure 18, the specific steps are as follows:

Step S1801:UE1 sends D2D connection and establishes request message to eNB1.

The D2D connection, which is established in request message, contains the mark of target UE2.

The UE2 mark include discovery ID, S-TMSI, IMSI, GUTI, IP address or other can identify UE2's Information.

Step S1802:eNB1 judges that UE2 whether in oneself serving cell, executes corresponding operation.

Whether the eNB1 judges UE2 in oneself serving cell according to the method that example 10 describes.

If UE2 just stops paging by the cell serves of eNB1；Otherwise, eNB1 is sent by X2 interface to adjacent base station Paging message.

Step S1803:eNB1 sends D2D paging request message to eNB2.

It include the mark of source UE1 and target UE2 in the D2D paging request message.

It is described mark include discovery ID, S-TMSI, IMSI, GUTI, IP address or other can identify the information of UE.

The eNB2 sends D2D paging request message to eNB1, can use on existing and/or newly-increased X2 interface Message.

The message using on existing X2 interface can be and directly be paged with existing X2 message, Huo Zhefu It is paged with the IE of existing X2 message, or adds a new IE in existing X2 message and paged.

Step S1804:eNB2 obtains UE2 state in which, according to UE2 state in which, executes corresponding operation.

If UE2 is in connected state, eNB2 judges whether UE2 is serviced by eNB2.If UE2 is serviced by eNB2, just directly Execute step S07；Otherwise any operation is not executed.

If UE2 is in Idle state, step S05 is executed.

The method that eNB2 obtains UE2 state in which includes: that eNB2 oneself saves UE2 state in which；Or it is described UE2 state in which is sent to eNB2 in D2D paging request message by eNB1；Or eNB1 is by existing and/or newly-increased UE2 state in which will be sent to eNB2 by the message on X2 interface.

Message on the X2 interface includes: base station configuration updating information, base station configuration updating confirmation message, switching request Message on message, switch acknowledgment message and some other X2 interface.

The method that eNB1 obtains the UE2 state in which includes: that UE1 sends out UE2 state in which by idle message Give eNB1.

The UE2 state in which, which can be carried, is sent to UE1 in the beacon signal that UE2 is sent.

Step S1805:eNB2 sends D2D paging request message in the serving cell of oneself and pages UE2.

The eNB2 sends D2D paging request message in the serving cell of oneself and pages UE2, can use existing mechanism And paging message, or the modification to existing paging mechanism and paging message, or the paging mechanism newly defined and paging disappear Breath.

Step S1806:UE2 sends D2D page-response message to eNB2.

If UE2 carries out page response in the serving cell of eNB2, UE2, random access sends page response to eNB2 Message is to eNB2.

After the target UE receives paging message, random access procedure can be carried out immediately and/or replys page response Message；Or when the TAU period being waited to reach, random access procedure is carried out in TAU process and/or replys page-response message.Institute Stating page-response message can be random accessing message, TAU message or other existing or newly-increased idle messages.

The UE2 is sent to the page-response message of eNB2, includes the service of UE1 mark, the mark of UE2 and/or UE2 Base Station Identification and/or some other necessary information.

It is described mark include discovery ID, S-TMSI, IMSI, IP address or other can identify the information of UE.

Step S1807:eNB2 sends D2D page-response message to eNB1.

Embodiment 16

The embodiment of the present invention is illustrated so that base station is network element as an example.It describes another kind and paging message is sent by base station Come obtain target UE serving BS method, as shown in figure 19, the specific steps are as follows:

Step S1901:UE2 is in Idle state.

Step S1902:UE2 sends beacon signal.

The transmission of the beacon signal carries the mark of UE2.

UE2 state in which, including connected state and Idle state can also be carried in the beacon signal.

The sending method of the beacon signal can be unicast, broadcast, multicast.

Step S1903:UE1 listens to the beacon signal of UE2.

Serving BS eNB1 of the step S1904:UE1 transmission beacon response message to oneself.

Step S1905~S1910 is identical as step S1802~S1807 in embodiment 15, and details are not described herein.

Step S1911:eNB1 forwards beacon response message to eNB2.

Step S1912:eNB2 forwards beacon response message to UE2.

Embodiment 17

The embodiment of the present invention is illustrated so that base station is network element as an example.It describes another kind and paging message is sent by base station Come obtain target UE serving BS method, as shown in figure 20, the specific steps are as follows:

Step S2001:UE1 sends D2D connection and establishes request message to eNB1.

Step S2002:eNB1 judges that UE2 whether in oneself serving cell, executes corresponding operation.

If UE2 just stops paging in the serving cell of oneself；Otherwise, paging message is sent to MME by S1 interface.

Step S2003:eNB1 sends D2D paging request message to MME.

It include the mark of target UE2 in the D2D paging request message.

Step S2004:MME judges connection status locating for UE2, executes corresponding operation.

If UE2 is in connected state, MME judges UE2 whether in the coverage of oneself, if just directly executing step The servicing base station information of UE2 is returned to base station by rapid S2009.Otherwise any operation is not executed.

If UE2 is in Idle state, MME determines that paging domain, sends paging message in paging domain.

The determination of the paging domain includes: the neighboring community of base station, finds cell included by region.

Step S2005:MME sends D2D paging request message in paging domain.

It include the mark of UE2 in the D2D paging request message.

The D2D paging request message can be with existing paging message, or the modification to existing paging message, either The message newly defined.

Step S2006: the base station in paging domain sends D2D paging request message in the serving cell of oneself, pages UE.

The base station of the paging domain can be D2D paging request message of the forwarding from MME, is also possible to oneself and generates Paging message pages UE2.

After step S2007:UE2 receives D2D paging request message, D2D page-response message is replied.

After UE2 receives D2D paging request message, random access sends page-response message to eNB2 to eNB2.

After the target UE2 receives paging message, random access procedure can be carried out immediately and/or replys page response Message；Or when the TAU period being waited to reach, random access procedure is carried out in TAU process and/or replys page-response message.Institute Stating page-response message can be random accessing message, TAU message or other existing or newly-increased idle messages.

The UE2 is sent to the page-response message of eNB2, include the mark of UE1, the mark of UE2 and/or other one A little necessary information.

The UE mark include discovery ID, S-TMSI, IMSI, IP address or other can identify the information of UE.

The serving BS eNB2 of step S2008:UE2 sends D2D page-response message to MME.

The D2D page-response message that the eNB2 is sent, contain mark, the mark of UE2 of UE1 with.

The D2D page-response message that the eNB2 is sent can be D2D page-response message of the forwarding from UE2, can also To be to carry out page response using the message on existing and/or newly-increased S1 interface.

Message on the existing S1 interface includes: that switching requires message, switching request acknowledgement message, switching notice to disappear Breath, path switching request information, switch failure information, handover cancelling message, response message is established in carrying, bearing modification response disappears Breath, carrying release response message, carrying release instruction message, initial context are established response message, resetting confirmation message, S1 and are built Vertical request message, UE context modification request message, base station configuration updating information, base station state transmission message, base station are directly believed Breath transmits message, message is transmitted in base station configuration, on position report message, initial UE message, UE context release request message, UE Hereafter modify the message on response message and other S1 interfaces.

The message using on existing S1 interface, can be and directly carry out page response with existing idle message, Perhaps the IE for being multiplexed existing S1 interface message carry out page response or added in existing S1 interface message a new IE into Row page response.

Step S2009:MME sends D2D page-response message to eNB1.

The D2D page-response message that the MME is sent, contains the service base of the mark of UE1, the mark of UE2 and UE2 It stands the information of eNB2.

The D2D page-response message that the MME is sent can be D2D page-response message of the forwarding from eNB2, can also To be to carry out page response using the message on existing and/or newly-increased S1 interface.

Message on the existing S1 interface includes: that switching command message, switching request message, path integration request are true Recognize message, handover cancelling confirmation message, carry and establish request message, bearing modification request message, carry release command message, is first Beginning context establishes request message, resetting message, S1 and establishes response message, UE context modification request message, UE context and release Put order, MME configuration update message, base station state transmission message, MME state transfer message, MME direct information transmission message, Message in MME configuration transmission message and other S1 interfaces.

The message using on existing S1 interface, can be and directly carry out paging sound with existing S1 interface message Answer, the IE for being perhaps multiplexed existing S1 interface message carry out page response or added in existing S1 interface message one it is new IE carries out page response.

Embodiment 18

The embodiment of the present invention is illustrated so that base station is network element as an example.It describes another kind and paging message is sent by base station Come obtain target UE serving BS method, as shown in figure 21, the specific steps are as follows:

Step S2101:UE2 is in Idle state.

Step S2102:UE2 sends beacon signal.

The transmission of the beacon signal carries the mark of UE2.

The sending method of the beacon signal can be unicast, broadcast, multicast.

Step S2103:UE1 listens to the beacon signal of UE2.

Serving BS eNB1 of the step S2104:UE1 transmission beacon response message to oneself.

Step S2105~S2112 is identical as step S2002~S2007 in embodiment 17, and details are not described herein.

Step S2113:eNB1 forwards beacon response message to eNB2.

The eNB1 forwarding beacon response message can be forwarded by X2 interface to eNB2, can also pass through S1 interface It is forwarded by MME.

Step S2114:eNB2 forwards beacon response message to UE2.

The embodiment of the present invention 17 to embodiment 19 describes the clothes that network element directly inquires UE from D2D registrar The method of business base station, is below described in detail each embodiment respectively.

Embodiment 19

The embodiment of the present invention is illustrated so that base station is network element as an example.Base station is described directly to look into from D2D registrar The method for asking the serving BS of target UE, as shown in figure 22, the specific steps are as follows:

Step S2201: target UE is registered on D2D registrar.

The D2D registrar can be deployed in access net, can also be deployed in core net, can be with base station same A network element, can also be with MME in the same network element, or as an individual network element.

The UE is registered on D2D registrar, can be UE booting when, UE open D2D function when When time or UE are moved to new D2D registration area, send D2D login request message and give D2D registrar.

May include in the D2D login request message: UE discovery ID, UE other ID(S-TMSI or IMSI or Person GUTI or IP address etc.), the serving BS of UE mark, the cell ID where UE and some other necessary information.

The servicing base station information of step S2202:D2D registrar preservation target UE.

The D2D registrar saves the servicing base station information of target UE, can be and saves target UE and service with it The mapping relations of the information of base station, the context that can be used as target UE save, and can also be used as other information preservation.

Step S2203: the serving BS mark of target UE is inquired in base station from D2D registrar.

The serving BS mark of target UE is inquired in the base station from D2D registrar, can be special send and services Base station inquiry message, or serving BS query information is carried in other message.

The mark for the target UE to be inquired is carried in the serving BS query messages that the base station is sent.The target UE Mark can be discovery ID, S-TMSI, IMSI, GUTI, IP address or other can identify the information of target UE.

Be also possible to carry in the serving BS query messages that the base station is sent target UE state in which and other one A little necessary information.The target UE state in which includes: idle and connected state.

Embodiment 20

The embodiment of the present invention is illustrated so that base station is network element as an example.Describe a particular implementation in embodiment 17 Scheme, as shown in figure 23, the specific steps are as follows:

Step S2301:UE1 initiates to establish request message to the D2D connection of UE2, is sent to eNB1.

The UE1 initiates to establish request message to the D2D connection of UE2 to be when UE1 wants that establishing D2D with UE2 communicates.

The mark for carrying UE2 is established in request message in the D2D connection.

The mark of the UE2 can be discovery ID, S-TMSI, IMSI, GUTI, IP address or other can identify UE2 Information.

Step S2302:eNB1 judges whether oneself preserves the servicing base station information of UE2.

ENB1 checks whether oneself preserves the servicing base station information of UE2, if preserving the servicing base station information of UE2, Just directly execute step S2306；Otherwise, step S2303 is executed.

Step S2303:eNB1 sends serving BS query messages to D2D registrar (DRS).

If not having to save the servicing base station information of UE2 on eNB1, eNB1 just sends serving BS query messages to DRS, The mark of UE2 is contained in the base station inquiry message.

It is also possible to carry UE2 state in which and some other in the serving BS query messages that the base station is sent Necessary information.The target UE state in which includes: idle and connected state.

The UE for the serving BS mark for being used to indicate inquiry target UE with one in the inquiry request message, specific:

Existing message can be multiplexed to inquire the serving BS of UE mark, or add an IE in existing message, Indicate the serving BS mark of inquiry UE；Or a newly-increased message is defined, it is specifically used to inquire the serving BS mark of UE； Or an IE is added in newly-increased message for other purposes, the serving BS mark of instruction inquiry UE.

The D2D registrar is used to manage the register flow path of D2D UE, saves the servicing base station information of D2D UE And other information, it can be an independent network element, or with base station or MME or Network Management System or other nodes same One network element.

Step S2304:DRS judges whether oneself saves the servicing base station information of UE2.

If saving the servicing base station information of UE2, DRS sends serving BS query response message to base station；

Otherwise, DRS sends serving BS to base station and inquires failed message；Or paging process is initiated, page target UE；Or Person triggers MME and/or paging process is initiated in base station, pages target UE；Or do not execute any operation.

The DRS, which initiates paging process, can be existing paging process, or the modification to existing paging process, or Person is the paging process newly defined.

Paging process is initiated in the MME and/or base station, pages target UE, the method in embodiment two can be used.

Step S2305:DRS replys serving BS query response message to eNB1.

The query response message includes the IE of a serving BS mark for being used to indicate target UE, specific:

Existing message can be multiplexed to indicate the serving BS mark of target UE, or add one in existing message The serving BS mark of IE, instruction target UE；Or a newly-increased message is defined, it is specifically used to indicate the service base of target UE Station identifications；Or an IE is added in newly-increased message for other purposes, the serving BS mark of instruction target UE.

Step S2306:eNB1 forwarding D2D connection establishes request message to eNB2.

ENB1 receives the servicing base station information of the UE2 of DRS reply as after eNB2, eNB1 just forwards D2D connection to establish Request message is to eNB2.

Step S2307:eNB2 forwarding D2D connection establishes request message to UE2.

Before the eNB2 forwarding D2D connection establishes request message to UE2, to judge whether UE2 is in connected state.If UE2 is in connected state, and request message directly just is established in D2D connection and is transmitted to UE2；If UE2 is in Idle state, eNB2 will be first After paging UE2, UE2 random access eNB2, eNB2 just forwards D2D connection to establish request message to UE2.

The paging process can be existing paging process, be also possible to the modification of existing paging process, or new fixed The D2D of justice pages process.

The eNB2 pages target UE2, further comprises:

The adjacent base station sends paging message and gives target UE, if target UE in the serving cell of the adjacent base station, After the target UE receives paging message, random access procedure can be carried out immediately and/or replys page-response message；Or When the equal TAU period reaches, random access procedure is carried out in TAU process and/or replys response message.The page-response message It can be random accessing message, TAU message or other existing or newly-increased idle messages.

Step S2308: remaining operating process is executed.

Remaining described operating process include: UE2 reply D2D connection be successfully established message to eNB2, eNB2 forwarding D2D company Connect be successfully established message to eNB1, eNB1 forwarding D2D connection be successfully established message give UE1, UE1 and UE2 progress D2D communication；Or Person UE2 reply D2D connection establish failed message to eNB2, eNB2 forwarding D2D connection establish failed message give eNB1, eNB1 forwarding D2D connection establishes failed message to UE1；Or other some possible operations.

Embodiment 21

The embodiment of the present invention is illustrated so that base station is network element as an example.Describe a particular implementation in embodiment 17 Scheme, as shown in figure 24, the specific steps are as follows:

Step S2401~step S2404 is identical as step S2301~step S2304 in embodiment 20, herein no longer It repeats.

Step S2405:DRS replys serving BS to eNB1 and inquires failed message.The step be can selection operation, if DRS The servicing base station information of UE2 is not saved, any operation can not also be executed.

It is described inquiry failed message can be multiplexed existing message indicate inquiry target UE serving BS mark failure, Or an IE is added in existing message, the serving BS of instruction inquiry target UE identifies failure；Or it defines one and increases newly Message, be specifically used to indicate inquiry target UE serving BS mark failure；Or in newly-increased message for other purposes The serving BS of one IE of middle addition, instruction inquiry target UE identify failure.

Step S2406:eNB1 sends D2D connection and establishes failed message to UE1.

The D2D connection, which is established in failed message, contains the mark of UE2, and the D2D connection of instruction UE1 and UE2, which is established, loses It loses.

Embodiment 22

The embodiment of the invention provides a kind of systems for obtaining user equipment servicing base station information, can be with implementation of the invention The method that user equipment servicing base station information is obtained provided by example one to embodiment nine combines, and obtains target UE serving BS Mark.The system includes: network element and target UE；

The network element is specially following any appliance:

UE, base station, MME, DRS, Network Management System.

Preferably, when the network element is source UE, the network element is believed specifically for receiving the discovery that the target UE is sent Number perhaps discovery signal response message parsed from the discovery signal or discovery signal response message find signal or It was found that the information that signal response message carries obtains the serving BS mark of the target UE further according to the information.

The discovery region ID is carried in following any message:

The discovery ID is carried in following any message:

Embodiment 23

The embodiment of the invention provides a kind of systems for obtaining user equipment servicing base station information, can be with implementation of the invention The method that user equipment servicing base station information is obtained provided by example ten to embodiment 16 combines, and obtains target UE and services base Station identifications.The system includes: network element and target UE；

The network element is specially following any appliance:

UE, base station, MME, DRS.

Preferably, when the network element is base station, the network element is specifically used for carrying paging message hair in discovery signal Opposite end network element is given, the mark of target UE is contained in the paging message, the opposite end network element is following any appliance:

The mark of the target UE include S-TMSI, IMSI, GUTI, discovery ID, IP address,

Preferably, which further includes adjacent base station；

When the network element is base station, the network element is specifically used for sending paging message on X2 interface to adjacent base station, Target UE is paged, the adjacent base station includes there are all base stations of X2 interface with the base station or with the base station same It was found that region and having the base station of X2 interface, the paging message contains the mark of target UE, and the mark of the target UE includes Any below or any number of information:

S-TMSI, IMSI, GUTI, discovery ID, IP address,

After receiving the paging message, paging operation is directly executed.

Preferably, which further includes MME；

Embodiment 24

The embodiment of the invention provides a kind of systems for obtaining user equipment servicing base station information, can be with implementation of the invention The method that user equipment servicing base station information is obtained provided by example 17 to embodiment 19 combines, and obtains target UE service Base Station Identification.The system includes network element, D2D registrar and target UE；

The network element is specially following any appliance:

UE, base station, MME.

The embodiment provides a kind of method and systems for obtaining user equipment servicing base station information, by network element root The service of target UE is obtained by sending paging message according to the serving BS mark of instruction acquisition of information target UE, or by network element Base Station Identification, or the serving BS mark of target UE is obtained to D2D registrar by sending inquiry request message by network element Know, realize the serving BS mark by the direct effective acquisition target UE of network element, solves the existing method for obtaining the position UE and make It is longer at signaling paths, network overhead is excessive, heavier loads, the larger problem of delay.

Those of ordinary skill in the art will appreciate that computer journey can be used in all or part of the steps of above-described embodiment Sequence process realizes that the computer program can be stored in a computer readable storage medium, the computer program exists (such as system, unit, device) executes on corresponding hardware platform, when being executed, include the steps that embodiment of the method it One or combinations thereof.

Optionally, integrated circuit can be used also to realize in all or part of the steps of above-described embodiment, these steps can To be fabricated to integrated circuit modules one by one respectively, or make multiple modules or steps in them to single integrated electricity Road module is realized.In this way, the present invention is not limited to any specific hardware and softwares to combine.

Each device/functional module/functional unit in above-described embodiment, which can be adopted, is realized with general computing device realization, it Can be concentrated on a single computing device, can also be distributed over a network of multiple computing devices.

Each device/functional module/functional unit in above-described embodiment realized in the form of software function module and as Independent product when selling or using, can store in a computer readable storage medium.Computer mentioned above Read/write memory medium can be read-only memory, disk or CD etc..

Anyone skilled in the art in the technical scope disclosed by the present invention, can readily occur in variation or Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor described in claim It protects subject to range.

Claims

1. a method of obtain user equipment servicing base station information characterized by comprising

Target UE UE sends discovery signal or discovery signal response message, and the discovery signal or discovery signal response disappear Instruction information is carried in breath, the instruction information includes that the discovery area identification of target UE finds the hair of region ID, target UE Now mark i.e. discovery ID or discovery signal or the resource for finding signal response；Network element is according to instruction acquisition of information target user The serving BS of equipment UE identifies, and the network element is specially following any appliance:

UE, base station, mobile management entity MME, D2D registrar DRS, Network Management System.

2. the method according to claim 1 for obtaining user equipment servicing base station information, which is characterized in that the network element root According to the target UE discovery signal sent or discovery signal response message, the serving BS mark packet of the target UE is obtained It includes:

The network element receives the discovery signal that the target UE is sent or discovery signal response message, from the discovery signal or Person has found to parse discovery signal in signal response message or finds the information that signal response message carries, further according to the letter Breath obtains the serving BS mark of the target UE.

3. the method according to claim 2 for obtaining user equipment servicing base station information, which is characterized in that the network element connects Receive the discovery signal or find that signal response message is specially that the network element is direct from the target UE that the target UE is sent The discovery signal or discovery signal response message are received, or is forwarded by other network elements to find signal described in indirect reception Or discovery signal response message；

4. the method according to claim 2 for obtaining user equipment servicing base station information, which is characterized in that the discovery letter Number or discovery signal response message carry information be specially indicate serving BS mark information, the instruction serving BS The information of mark includes any of following information or any a variety of:

Base Station Identification eNB ID, global unique cell identification ECGI, Physical Cell Identifier PCI, IP address.

5. the method according to claim 2 for obtaining user equipment servicing base station information, which is characterized in that the discovery letter Number or the resource of discovery signal response message include finding the time domain, frequency domain and the code domain that use involved by signal.

6. the method according to claim 5 for obtaining user equipment servicing base station information, which is characterized in that further according to the letter Breath, the serving BS mark for obtaining the target UE include:

The network element is from the discovery signal sent of target UE described in the acquisition of information locally saved or finds signal response message Resource and Base Station Identification mapping relations, alternatively,

The network element obtains the discovery signal or the money for finding signal response message that the target UE is sent from other network elements The mapping relations in source and Base Station Identification；

The network element sends the resource and Base Station Identification for finding signal or discovery signal response message according to the target UE Mapping relations obtain the serving BS mark of the target UE；

7. the method according to claim 6 for obtaining user equipment servicing base station information, which is characterized in that this method is also wrapped It includes:

It is held consultation by adjacent base station, a resource collection is distributed in each base station, and the UE of different base station service uses different Resource sends discovery signal and perhaps finds that the UE of each base station service of signal response message sends discovery signal or discovery signal There are an one-to-one relationship in the resource of response message and the base station, the one-to-one relationship constitute UE send discovery signal or Person has found the resource of signal response message and the mapping relations of base station；

Base station, MME, D2D registrar, Network Management System.

8. the method according to claim 1 for obtaining user equipment servicing base station information, which is characterized in that the network element root Include: according to the serving BS mark that the discovery region ID of the target UE obtains opposite end UE

The network element obtains the serving BS mark of the target UE according to the mapping relations of discovery the region ID and Base Station Identification Know；

9. the method according to claim 8 for obtaining user equipment servicing base station information, which is characterized in that the network element root According to the mapping relations of discovery the region ID and Base Station Identification, the serving BS mark for obtaining the target UE includes:

It is the corresponding base station a discovery region ID or one in the discovery region ID and the mapping relations of Base Station Identification It was found that when one or more cells below the corresponding base station region ID, the network element directly according to the discovery region ID, Derive the serving BS mark of the target UE；

It is the corresponding multiple base stations a discovery region ID or multiple in the discovery region ID and the mapping relations of Base Station Identification When cell below base station, the network element derives the service of the target UE according to the discovery region ID and auxiliary information Base Station Identification, the auxiliary information include discovery ID.

10. the method according to claim 1 for obtaining user equipment servicing base station information, which is characterized in that

The discovery region ID is distributed by base station, MME, D2D registrar, Network Management System or other network elements.

11. the method according to claim 10 for obtaining user equipment servicing base station information, which is characterized in that

The discovery region ID is specially to hold consultation between base station by base station distribution, for target UE distribution and adjacent base station The discovery region ID that corresponding discovery region ID does not conflict.

12. the method according to claim 1 for obtaining user equipment servicing base station information, which is characterized in that the network element Include: according to the serving BS mark that the discovery ID of the target UE obtains the target UE

The network element from target UE described in the acquisition of information locally saved discovery ID and Base Station Identification mapping relations, alternatively,

The network element is according to the mapping relations for finding ID and Base Station Identification, to obtain the serving BS mark of the target UE Know；

13. the method according to claim 12 for obtaining user equipment servicing base station information, which is characterized in that this method is also Include:

When distributing discovery ID for UE, negotiate to distribute different discovery ID set for the UE under adjacent base station by base station, each It was found that ID correspondence uniquely determines Base Station Identification；Or,

When distributing discovery ID for UE, different discovery ID is distributed for the UE under adjacent base station by MME and is gathered, each ID pairs of discovery Base Station Identification should be uniquely determined；Or,

When distributing discovery ID for UE, different discovery ID is distributed for the UE under adjacent base station by D2D registrar and is gathered, often A discovery ID correspondence uniquely determines Base Station Identification；Or,

When distributing discovery ID for UE, different discovery ID is distributed for the UE under adjacent base station by Network Management System and is gathered, often A discovery ID correspondence uniquely determines Base Station Identification.

14. the method according to claim 13 for obtaining user equipment servicing base station information, which is characterized in that

The D2D registrar is an independent network element, or with base station or MME or Network Management System or other nodes In the same network element.

15. a kind of system for obtaining user equipment servicing base station information characterized by comprising network element and target UE UE；

The target UE UE, for sending discovery signal or discovery signal response message, the discovery signal or discovery In signal response message carry instruction information, it is described instruction information include target UE discovery area identification find region ID, The discovery mark i.e. discovery ID or discovery signal of target UE or the resource for finding signal response；

The network element is specially following any appliance: