CN104066078A

CN104066078A - Method and system for distributing equipment identifiers

Info

Publication number: CN104066078A
Application number: CN201310092314.4A
Authority: CN
Inventors: 黄莹; 陈琳; 谢峰; 鲁照华; 罗宇民; 马书宇; 刘玉兰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-03-21
Filing date: 2013-03-21
Publication date: 2014-09-24
Also published as: WO2014146473A1

Abstract

The invention discloses a method and system for distributing equipment identifiers. The method comprises: an equipment identifier management entity distributing the equipment identifiers to user equipment (UE); and the equipment identifier management entity sending information to the UE, the information comprising the equipment identifiers. In the system, an equipment identifier distributing unit is used for distributing the equipment identifiers to the UE, and an equipment identifier sending unit is used for sending the information to the UE, wherein the information comprises the equipment identifiers. By using the method and system provided by the invention, a network side can distribute the identifiers to the UE in an equipment-to-equipment scene.

Description

A kind of distribution method of device identification and system

Technical field

The present invention relates to the sign distribution technique of wireless communication technology field, relate in particular to a kind of distribution method and system of device identification.

Background technology

Along with the development of radio multimedium business, people are growing to the demand of high data rate and user's experience, thereby the power system capacity of conventional cellular network and covering have been proposed to high requirement.Near the right solution of the popular people of making of social networks, the closely application such as data sharing, local advertising, the demand of interested persons or things communication with it increases gradually on the other hand.Aspect the support of high data rate and adjacent service, there is obvious limitation in the existing cellular network based on community, under this requirement background, device-to-device (D2D, the Device-to-Device) technology that represents the new direction of future communications technical development is arisen at the historic moment.The application of D2D technology, can alleviate the burden of cellular network, the battery power consumption that reduces subscriber equipment, raising data rate, and improves the robustness of network infrastructure, meets well the requirement of above-mentioned high data rate traffic and adjacent service.

D2D technology can be operated in authorizes frequency range or unauthorized frequency range, allow the subscriber equipment of a plurality of support D2D functions, being D2D subscriber equipment (D2D UE, D2D User Equipment) is having network infrastructure or directly find/direct communication without network infrastructure in the situation that.The application scenarios of D2D mainly contains three kinds:

1) subscriber equipment (UE) 1 and UE2 carry out data interaction under the covering of cellular network, and user face data is without network infrastructure, as shown in the pattern 1 of Fig. 1.

2) weak/without the UE relay transmission of overlay area, as shown in the pattern 2 in Fig. 1, allow the poor UE4 of signal quality to have the UE3 of the network coverage and network to communicate by neighbouring, can help operator's expansion covering, raising capacity.

3) there is earthquake or emergency, in the situation of cellular network cisco unity malfunction, allow equipment room direct communication, as shown in the mode 3 in Fig. 1, between UE5, UE6 and UE7, chain of command and user's face all carry out the data communication of a jumping or multi-hop without network infrastructure.

D2D technology generally includes D2D discovery technique and the D2D communication technology:

1) D2D discovery technique refers to for judging/determining and between two or more D2D subscriber equipmenies, is mutually close to (for example, within can carrying out D2D direct communications range) or for judging/determine the technology of first user proximity of devices the second subscriber equipment.

2) the D2D communication technology refers to the technology that between D2D subscriber equipment, partly or entirely communication data can directly not communicate by network infrastructure.

Conventionally, between D2D subscriber equipment, can find the other side by sending or receive discovery signals/information, have under cellular network covering, network can be assisted D2D subscriber equipment to carry out D2D discovery and be realized management and the control that D2D is found.In this discovery signals/information, can comprise the equipment identification information that sign sends the subscriber equipment of this discovery signals, also can be described as and find ID.Find that ID is conventionally by network allocation, for inherence, the specific region unique identification D2D subscriber equipment of eating dishes without rice or wine.

Owing to finding that ID can unique identification UE in its effective coverage, and can be multiplexing on different spaces, UE moves out in the effective coverage situation of finding ID, if also use original discovery ID, discovery ID very possible and other different UEs clashes, network can not be by finding that ID unique identification goes out UE, to cause D2D to find to carry out smoothly, therefore, find that ID has region availability and available time, once exceed specific region or specific duration, find that ID lost efficacy, under D2D scene, need network side to possess this discovery ID is reclaimed and be that UE redistributes the distribution mechanism of finding ID, yet, in existing standard, LTE system does not support to find the distribution mechanism of ID under D2D scene.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of distribution method and system of device identification, in D2D scene lower network side, can be UE allocation identification.

For achieving the above object, technical scheme of the present invention is achieved in that

A distribution method for device identification, the method comprises:

Device identification management entity is user equipment (UE) distributing equipment sign;

Device identification management entity sends information to described UE, and described packets of information is containing described device identification.

Wherein, described device identification management entity is UE distributing equipment sign, further comprises:

Described device identification management entity is described UE distributing equipment sign in the attaching process of UE;

Or described device identification management entity is described UE distributing equipment sign in the tracking area update process of UE;

Or described device identification management entity is described UE distributing equipment sign in the service request procedure of UE;

Or described device identification management entity is described UE distributing equipment sign in the handoff procedure of UE;

Or described device identification management entity is described UE distributing equipment sign in the device identification assigning process of UE.

Wherein, described device identification management entity is described UE distributing equipment sign in the handoff procedure of UE, further comprises:

The first device identification management entity indicates UE described in the second device identification management entity need to distribute new device identification by the mode of explicit or implicit expression; The source device identity management entity that described the first device identification management entity is described UE; The target device identity management entity that described the second device identification management entity is described UE.

The device identification that UE is used under different RRC states is distributed by different device identification management entities;

Or the device identification that UE is used under different RRC states is distributed by identical device identification management entity.

Wherein, the device identification that described UE is used under different RRC states is distributed by different device identification management entities, further comprises:

The device identification that UE is used under connected state is by base station assigns, and the device identification that UE is used under Idle state is distributed by mobile management entity.

The length of the device identification of using under different RRC states for UE that described device identification management entity distributes is not identical.

Described device identification management entity is described UE distributing equipment sign according to the signing grade of described UE.

Wherein, described device identification management entity is described UE distributing equipment sign according to the signing grade of described UE, further comprises:

Described device identification management entity is the device identification length difference that the UE of different signing grades distributes;

Or described device identification management entity is the UE distributing equipment sign of different signing grades from different device identification set.

Wherein, described device identification management entity sends information to described UE, and described packets of information, containing described device identification, further comprises:

The device identification that UE is used under different RRC states is by under different device identification management entity distribution condition, and described information also comprises UE state corresponding to described device identification; Described UE state comprises: Idle state and connected state.

Scope effective time that also comprises described device identification in described information.

Wherein, described device identification management entity is described UE distributing equipment sign in the device identification assigning process of described UE, further comprises:

The packets of information that described UE receives from device identification management entity containing device identification effective time scope situation, described device identification exceeds after scope effective time, described UE distributes new device identification to the request of described device identification management entity;

Or, if detecting the cell ID of current institute persistent district broadcast, described UE changes, described UE distributes new device identification to the request of described device identification management entity;

Or, if detecting the Tracking Area Code of current institute persistent district broadcast, described UE changes, described UE distributes new device identification to the request of described device identification management entity;

Or, if detecting the discovery area identification of current institute persistent district broadcast, described UE changes, described UE distributes new device identification to the request of described device identification management entity;

Or the mode of described UE based on Event triggered identifies to described device identification management entity request distributing equipment;

Or the periodic manner of described UE based on Event triggered identifies to described device identification management entity request distributing equipment;

Or described UE is periodically to described device identification management entity request distributing equipment sign.

Wherein, described device identification management entity is that after UE distributing equipment identifies, the method also comprises:

Described device identification management entity judges whether to need to discharge the device identification having distributed, and if desired release device identifies, the device identification having distributed described in discharging.

Wherein, described device identification management entity judges whether to need to discharge the device identification having distributed, and further comprises:

Described device identification management entity discharges indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed;

Or described device identification management entity discharges indication information according to the device identification of the current device identification management entity for described UE distributing equipment sign and judges whether to need to discharge the device identification having distributed;

Or described device identification management entity discharges indication information according to the device identification of other network element and judges whether to need to discharge the device identification having distributed.

Wherein, described device identification management entity discharges indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed, and further comprises:

If described UE judges the current device identification that do not need to use, transmitting apparatus sign discharges the device identification that indication information indicating equipment identity management entity is released to described UE distribution.

Wherein, described device identification management entity discharges indication information according to the device identification of the current device identification management entity for described UE distributing equipment sign and judges whether to need to discharge the device identification having distributed, and further comprises:

It is that the device identification management entity of described UE distributing equipment sign discharges the device identification having distributed for described UE that the identification information of device identification management entity that the current last time sending according to described UE for the device identification management entity of described UE distributing equipment sign is described UE distributing equipment sign and the identification information of described UE are indicated the described last time.

If described device identification management entity sends to the information of described UE to indicate scope effective time of device identification, exceed after scope effective time, described device identification management entity judgement needs to discharge the device identification having distributed, and the described device identification having distributed is discharged.

Wherein, described equipment management entity is the device identification that distributes of UE by following any one or more composition:

Identification information for device-to-device purposes;

The Temporary Mobile Subscriber Identity TMSI of described UE;

The international mobile subscriber identity IMSI of described UE;

The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of described UE;

The IP address of described UE;

The tracing area TA identification information at described UE place.

A distribution system for device identification, this system comprises: the device identification allocation units and the device identification transmitting element that are positioned at device identification management entity side; Wherein,

Described device identification allocation units, are used to UE distributing equipment sign;

Described device identification transmitting element, for transmission information, to described UE, described packets of information is containing described device identification.

Wherein, described device identification allocation units, being further used in the attaching process of UE is described UE distributing equipment sign;

Or, in the tracking area update process of UE, be described UE distributing equipment sign;

Or, in the service request procedure of UE, be described UE distributing equipment sign;

Or, in the handoff procedure of UE, be described UE distributing equipment sign;

Or, in the device identification assigning process of UE, be described UE distributing equipment sign.

Wherein, described device identification allocation units, are further used for the device identification that UE uses under different RRC states and are distributed by different device identification management entities; Or the device identification that UE is used under different RRC states is distributed by identical device identification management entity.

Wherein, described device identification allocation units, are further used for the length of the device identification of using under different RRC states for UE that distributes for UE for not identical.

Wherein, described device identification allocation units, being further used for according to the signing grade of described UE is described UE distributing equipment sign.

Wherein, described device identification allocation units, are further used for the device identification length difference into the UE distribution of the signing grade of difference;

Or, from different device identification set, be the UE distributing equipment sign of different signing grades.

Wherein, described device identification transmitting element, is further used for device identification that UE uses under different RRC states by under different device identification management entity distribution condition, also comprises UE state corresponding to described device identification in the described information of transmission; Described UE state comprises: Idle state and connected state.

Wherein, described device identification transmitting element, also comprises scope effective time of described device identification in the described information that is further used for sending.

Wherein, described device identification allocation units, be further used in the situation that be described UE distributing equipment sign in the device identification assigning process of described UE, described device identification exceeds after scope effective time, receives the request that comes from the new device identification of the distribution of described UE;

Or, when the cell ID that UE detects the broadcast of current institute persistent district changes, receive the request that comes from the new device identification of the distribution of described UE;

Or, when the Tracking Area Code that UE detects the broadcast of current institute persistent district changes, receive the request that comes from the new device identification of the distribution of described UE;

Or, when the discovery area identification that UE detects the broadcast of current institute persistent district changes, receive the request that comes from the new device identification of the distribution of described UE;

Or, receive the request of the distributing equipment sign of the mode based on Event triggered that comes from described UE;

Or, receive the request of the distributing equipment sign of the periodic manner based on Event triggered that comes from described UE;

Or, receive the request of the periodic distributing equipment sign that comes from described UE.

Wherein, this system also comprises: be positioned at the device identification releasing unit of device identification management entity side, after distributing equipment identifies, judge while needing to discharge the device identification having distributed, discharge the device identification having distributed.

Wherein, described device identification releasing unit, is further used for discharging indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed;

Or, according to the device identification of the current device identification management entity for described UE distributing equipment sign, discharge indication information and judge whether to need to discharge the device identification having distributed;

Or, according to the device identification of other network element, discharge indication information and judge whether to need to discharge the device identification having distributed.

Wherein, described device identification releasing unit, in the described information that is further used for sending, also comprise described device identification effective time scope situation under, exceed and judge needs after scope effective time and discharge the device identification having distributed, and by the device identification release having distributed.

Present device identity management entity is UE distributing equipment sign; Device identification management entity sends information to UE, and packets of information is containing device identification.Adopt the present invention, under D2D scene, having realized network side is UE allocation identification.

Accompanying drawing explanation

Fig. 1 is the application model schematic diagram of application D2D technology;

Fig. 2 is the realization flow schematic diagram of the inventive method principle;

Fig. 3 is the realization flow schematic diagram of embodiment of the method one of the present invention;

Fig. 4 is the realization flow schematic diagram of embodiment of the method two of the present invention;

Fig. 5 is the realization flow schematic diagram of embodiment of the method three of the present invention;

Fig. 6 is the realization flow schematic diagram of embodiment of the method four of the present invention;

Fig. 7 is the realization flow schematic diagram of embodiment of the method five of the present invention;

Fig. 8 is the realization flow schematic diagram of embodiment of the method six of the present invention;

Fig. 9 is the realization flow schematic diagram of embodiment of the method seven of the present invention;

Figure 10 is the realization flow schematic diagram of embodiment of the method eight of the present invention;

Figure 11 is the realization flow schematic diagram of embodiment of the method nine of the present invention.

Embodiment

Basic thought of the present invention is: device identification management entity is UE distributing equipment sign; Device identification management entity sends information to UE, and packets of information is containing device identification.

A distribution method for device identification, the method mainly comprises following content:

Device identification management entity is UE distributing equipment sign;

Device identification management entity sends information to described UE, and described information is included as the described device identification that UE distributes, and described device identification finds for device-to-device and/or device-to-device communication identifies described UE.

Preferably, described device identification management entity is UE distributing equipment sign, further comprises:

Described device identification management entity is described UE distributing equipment sign in the attaching process of described UE;

Or described device identification management entity is described UE distributing equipment sign in the tracking area update process of described UE;

Or described device identification management entity is described UE distributing equipment sign in the service request procedure of described UE;

Or described device identification management entity is described UE distributing equipment sign in the handoff procedure of described UE;

Or described device identification management entity is described UE distributing equipment sign in the device identification assigning process of described UE.

Preferably, described device identification management entity is described UE distributing equipment sign in the handoff procedure of described UE, further comprises:

Preferably, the device identification that UE is used under different RRC states is distributed by different device identification management entities, further comprises:

Preferably, the length of the device identification of using under different RRC states for UE that described device identification management entity distributes is not identical, further comprises:

The device identification that UE is used under Idle state is longer than the device identification length of using under connected state.

Preferably, described device identification management entity is described UE distributing equipment sign according to the signing grade of described UE, further comprises:

Preferably, described device identification management entity sends information to described UE, and described packets of information, containing described device identification, further comprises:

In described information, comprise one or more device identifications.Scope effective time that further, can also comprise described device identification in described information.

The device identification that UE is used under different RRC states, by under different device identification management entity distribution condition, is also indicated the corresponding UE state of described device identification in described information.Described UE state comprises: Idle state and connected state.

Preferably, described device identification management entity is described UE distributing equipment sign in the device identification assigning process of described UE, further comprises:

The information that described UE receives from device identification management entity has indicated the effective time of device identification scope situation, and described device identification exceeds after scope effective time, and described UE distributes new device identification to the request of described device identification management entity;

Preferably, described device identification management entity is, after described UE distributing equipment identifies, further to comprise in the device identification assigning process of described UE:

Described UE detects cell ID and/or the Tracking Area Code of current institute persistent district broadcast and/or finds that area identification changes the request of backward described device identification management entity and distributes in new device identification situation, in the device identification distribution request that described UE sends, comprises the last identification information of device identification management entity and the identification information of described UE for described UE distributing equipment sign.

Preferably, further, the identification information of described UE includes but not limited to: the last device identification for described UE distribution.

Preferably, described device identification management entity sends information to after described UE, further comprises:

Described UE stores described information, and uses described information in device-to-device discovery and/or device-to-device communication process.

Preferably, described UE stores described information, and uses described information in device-to-device discovery and/or device-to-device communication process, further comprises:

The device identification that described UE is used under different RRC states is by under different device identification management entity distribution condition, described UE stores respectively information corresponding under different RRC states, and according to current residing RRC state, uses corresponding information in device-to-device discovery and/or device-to-device communication process.

Preferably, described device identification management entity is, after UE distributing equipment identifies, further to comprise:

Described device identification management entity judges whether to need to discharge the device identification having distributed, if desired, and the device identification having distributed described in discharging.

Here it is to be noted: adopt the present invention, except realizing the mechanism that under D2D scene, support equipment sign is distributed, the mechanism that the device identification that can also support to distribute under D2D scene discharges.Contrast prior art, when not needing to use device identification (also referred to as finding ID) or UE, UE do not moved out behind original equipment sign effective coverage, distribute the network element of original equipment sign original equipment sign need be discharged, otherwise will cause device identification to be disabled takies, yet, adopt prior art as a rule, network side does not also know when UE does not need to use device identification (for example, UE closes D2D module or closes certain application), or the no original equipment that moves out (for example identifies effective coverage, in the situation of device identification by base station assigns, IDLE state UE moves out community under this base station), thereby cause under this base station assignable device identification decreased number in community, and then the effective rate of utilization of reduction device identification, and employing the present invention, the mechanism that the device identification distributing under support D2D scene discharges, can improve the effective rate of utilization of device identification.

Preferably, described device identification management entity judges whether to need to discharge the device identification having distributed, and further comprises:

Preferably, described device identification management entity discharges indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed, and further comprises:

Preferably, described device identification management entity discharges indication information according to the device identification of the current device identification management entity for described UE distributing equipment sign and judges whether to need to discharge the device identification having distributed, and further comprises:

The current last time sending according to described UE for the device identification management entity of described UE distributing equipment sign is the identification information of device identification management entity of described UE distributing equipment sign and the device identification that the identification information of described UE indicates described device identification management entity release to distribute for described UE.

Here it is pointed out that described device identification management entity can be network entity independently, or be arranged in existing network entity or newly-increased network entity; Described existing network entity includes but not limited to: base station, mobile management entity, home subscribed services device (HSS); Described newly-increased network entity includes but not limited to: the server that can be used for D2D purposes.

Preferably, further, described equipment management entity is UE distributing equipment sign by with lower one or more composition:

Identification information for D2D purposes;

The Temporary Mobile Subscriber Identity of described UE (TMSI);

The international mobile subscriber identity of described UE (IMSI);

The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of described UE (C-RNTI);

The IP address of described UE;

Tracing area (TA) identification information at described UE place.

In sum, adopt the present invention, solved in device-to-device is found, the problem of redistributing and discharging of device identification, adopt the present invention reducing the assignment problem that effectively solves device identification under the signaling message that needs introducing as far as possible, and can solve the resource release And Spread of Solute of device identification, and avoid device identification to be disabled and take, improve the effective rate of utilization of device identification.

Below in conjunction with accompanying drawing, the enforcement of technical scheme is described in further detail.

The realization flow schematic diagram that is illustrated in figure 2 the inventive method principle, Method And Principle of the present invention comprises the following steps:

Step 101, device identification management entity are UE distributing equipment sign.

Step 102, device identification management entity send information to UE, and described information is included as the device identification that UE distributes.

Here, described device identification identifies described UE for device-to-device discovery and/or device-to-device communication.

Embodiment of the method one:

What the present embodiment was described is device identification management entity method for UE distributing equipment sign in the attaching process of UE.In this embodiment, device identification management entity is arranged in base station and/or MME.As shown in Figure 3, the present embodiment comprises the following steps:

After step 201.UE start, initiate attaching process.UE and base station send the request of NAS message attachment to base station after setting up RRC and being connected in the RRC message of eating dishes without rice or wine, and base station is pass-through to MME by this Attach Request message again.

Step 202.MME is gateway (S-GW) and the packet data gateway (P-GW) that UE selects service, and carries for UE creates acquiescence evolved packet system (EPS).MME sends and creates conversation request message to S-GW.

Step 203.S-GW creates the context of UE, and is that the P-GW that UE selects sends establishment conversation request message to MME.

Step 204.P-GW creates the context of UE, and replys and create conversational response message to S-GW.

Step 205.S-GW replys and creates conversational response message to MME.

Step 206.MME is UE distributing equipment sign.Optionally, MME can also stipulate scope effective time of this device identification.The tracing area that this device identification forms in a plurality of communities or find in region can this UE of unique identification, also at tracing area or find in region effectively.

Step 207.MME sends S1 interface initial context request message to base station, wherein comprises NAS message attachment and accepts message.If MME is UE, distributed device identification, MME sends to base station by the equipment identification information that comprises device identification.If MME has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under Idle state to MME.

Step 208. base station is UE distributing equipment sign, and optional, scope effective time of this device identification can also be stipulated in base station.This device identification can this UE of unique identification in next community, this base station, also in cell range effectively.

It should be noted that based on step 206 and step 208, possible situation is: only MME is UE distributing equipment sign, or only base station is UE distributing equipment sign, or base station and MME be that UE distributing equipment identifies.Base station and MME are in the situation of UE distributing equipment sign, the device identification that UE is used respectively base station or MME to distribute under different RRC states.As the device identification that UE is used MME to distribute under Idle state, UE is used the device identification of base station assigns under connected state.Further, the length of the device identification that UE is used under different RRC states is not identical, as longer than the length of the device identification of using under connected state in the device identification that UE is used under Idle state.Can reduce the number of times that the rear UE of device identification inefficacy obtains again so that the effective coverage of the device identification that UE is used under Idle state ratio is larger under connected state like this, and then reach the object of UE economize on electricity greatly.

The NAS message attachment that step 209. base station sends MME by the RRC message of eating dishes without rice or wine is accepted message and is sent to UE.Base station is sent to UE by equipment identification information in this message.According to above description, in equipment identification information, may comprise one or more device identifications.Optionally, equipment identification information also can comprise the scope and/or corresponding UE state effective time of device identification.

Step 210.UE resolves and stores equipment identification information wherein after receiving RRC message, and in device-to-device discovery procedure, uses device identification to send discovery signals.If comprise two device identifications in equipment identification information, UE is used corresponding device identification to send discovery signals according to current residing RRC state.

It should be noted that, device identification is likely the user ID that base station or MME distribute for D2D purposes, also be likely that base station is the C-RNTI that UE distributes, or IMSI, or the S-TMSI that MME distributes, PGW is the IP address that UE distributes, and the identification information of UE place TA etc., are also likely comprised of above-mentioned one or more identification informations.

Embodiment of the method two:

What the present embodiment was described is device identification management entity method for UE distributing equipment sign in tracking area update (TAU) process of UE.In this embodiment, device identification management entity is arranged in base station and/or MME.As shown in Figure 4, the present embodiment comprises the following steps:

Under step 301. Idle state, UE moves and resident arriving behind Yi Gexin community, detects in the TAI TAI list that MME is its configuration in attaching process of this community, and UE initiates TAU process.First UE sets up RRC with base station and is connected.Then send RRC message RRC connection setup complete message to base station, wherein comprise NAS message TAU request message.Base station is pass-through to target MME by this NAS message by S1 interface message again.

Mutual between step 302-304. target MME and source MME, to transmit the context of UE.

In this embodiment of step 305-308., the SGW of UE does not change, MME and S-GW, the P-GW load bearing process of modifying alternately.

Step 309. target MME sends location update message to HSS, to upgrade the positional information of UE on HSS.

Step 310-311.HSS sends canceling position message to source MME, to inform that MME this UE in source has moved out its region.Source MME replys canceling position acknowledge message to HSS.

Step 312. source MME discharges the device identification distributing for this UE.Step 312 can be carried out before or after step 311 herein.

Step 313.HSS replys position to target MME and upgrades acknowledge message.

Step 314.MME is UE distributing equipment sign.Optionally, MME can also stipulate scope effective time of this device identification.The tracing area that this device identification forms in a plurality of communities or find in region can this UE of unique identification, also at tracing area or find in region effectively.

Step 315.MME sends S1 interface initial context request message to base station, wherein comprises NAS message TAU and accepts message.If MME is UE, distributed device identification, MME sends to base station by the equipment identification information that comprises device identification.If MME has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under Idle state to MME.

Step 316. base station is UE distributing equipment sign, and optional, scope effective time of this device identification can also be stipulated in base station.This device identification can this UE of unique identification in next community, this base station, also in cell range effectively.

It should be noted that based on step 314 and step 316, possible situation is: only MME is UE distributing equipment sign, or only base station is UE distributing equipment sign, or base station and MME be that UE distributing equipment identifies.Base station and MME are in the situation of UE distributing equipment sign, the device identification that UE is used respectively base station or MME to distribute under different RRC states.As the device identification that UE is used MME to distribute under Idle state, UE is used the device identification of base station assigns under connected state.Further, the length of the device identification that UE is used under different RRC states is not identical, as longer than the length of the device identification of using under connected state in the device identification that UE is used under Idle state.Can reduce the number of times that the rear UE of device identification inefficacy obtains again so that the effective coverage of the device identification that UE is used under Idle state ratio is larger under connected state like this, and then reach the object of UE economize on electricity greatly.

The NAS message attachment that step 317. base station sends MME by the RRC message of eating dishes without rice or wine is accepted message and is sent to UE.Base station is sent to UE by equipment identification information in this message.According to above description, in equipment identification information, may comprise one or more device identifications.Optionally, equipment identification information also can comprise the scope and/or corresponding UE state effective time of device identification.

Step 318.UE resolves and stores equipment identification information wherein after receiving RRC message, and in device-to-device discovery procedure, uses device identification to send discovery signals.If comprise two device identifications in equipment identification information, UE is used corresponding device identification to send discovery signals according to current residing RRC state.

Embodiment of the method three:

What the present embodiment was described is device identification management entity method for UE distributing equipment sign in service request (SR) process of UE initiation.In this embodiment, device identification management entity is arranged in base station and/or MME.As shown in Figure 5, the present embodiment comprises the following steps:

Step 401. Idle state UE has business datum to send, and first sets up RRC with base station and is connected, and then in RRC message RRC connection setup complete message, carries NAS messenger service request message to base station.Base station is pass-through to MME by this NAS message after receiving.

Step 402.MME is UE distributing equipment sign; Or MME be judged as last while identify for UE distributing equipment TAI or the discovery area identification at UE place whether identical with TAI or the discovery area identification at current place, if not identical, for UE distributes new device identification.Optionally, MME can also stipulate scope effective time of this device identification.

Step 403.MME sends initial context and sets up request message to base station, for UE sets up E-RAB carrying.If MME is UE, distribute device identification, in this message, carried the equipment identification information that comprises device identification.If MME has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under Idle state to MME.

Step 404. base station is that UE divides the device identification that is used in D2D, and optional, scope effective time of this device identification can also be stipulated in base station.This device identification can this UE of unique identification in next community, this base station, also in cell range effectively.

It should be noted that based on step 402 and step 404, possible situation is: only MME is UE distributing equipment sign, or only base station is UE distributing equipment sign, or base station and MME be that UE distributing equipment identifies.Base station and MME are in the situation of UE distributing equipment sign, the device identification that UE is used respectively base station or MME to distribute under different RRC states.As the device identification that UE is used MME to distribute under Idle state, UE is used the device identification of base station assigns under connected state.Further, the length of the device identification that UE is used under different RRC states is not identical, as longer than the length of the device identification of using under connected state in the device identification that UE is used under Idle state.Can reduce the number of times that the rear UE of device identification inefficacy obtains again so that the effective coverage of the device identification that UE is used under Idle state ratio is larger under connected state like this, and then reach the object of UE economize on electricity greatly.

Step 405. base station sends RRC to UE and connects reconfiguration message, for UE sets up the DRB Deta bearer of eating dishes without rice or wine accordingly.If base station receives equipment identification information from MME, in this message, comprise the equipment identification information receiving from MME.If base station is UE, distribute device identification, in this message, carried the equipment identification information that comprises device identification of base station assigns.If scope effective time of device identification has been distributed in base station simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under connected state in base station.UE completes and eats dishes without rice or wine accordingly to configure rear reply RRC and connect and reshuffled message to base station.

Step 406.UE resolves and stores equipment identification information wherein after receiving RRC message, and in device-to-device discovery procedure, uses device identification to send discovery signals.If indicate the RRC connected state of device identification corresponding UE in equipment identification information, UE is only used this device identification to send discovery signals when in corresponding RRC state.If UE receives two device identifications, UE is used corresponding device identification to send discovery signals according to current residing RRC state.

Step 407. base station sends initial context and has set up message to MME.

The accepted EPS carrying that step 408-411.MME replys according to base station, to S-GW, the P-GW load bearing process of modifying alternately, to set up S1 and S6 carrying.

Embodiment of the method four:

What the present embodiment was described is base station method for UE distributing equipment sign in the X2 of UE handoff procedure.In this embodiment, device identification management entity is arranged in base station and/or MME.As shown in Figure 6, the present embodiment comprises the following steps:

Step 501.UE detects the strong signal of neighbor cell, and sends measurement report to source base station.

The measurement report that step 502. source base station sends according to UE carries out switch decision, and X2 switching flow is carried out in judgement.Determine target BS and send X2 handover request message to target BS.In this handover request message, can comprise and be used to indicate and need to distribute the explicit of new device identification or implicit expression indication information for UE.For example, implicit expression indication can be the D2D GL information of UE, or the ongoing D2D related application of UE or behavior.

Step 503. target BS is that UE divides the device identification that is used in D2D, and optional, target BS can also be stipulated scope effective time of this device identification.This device identification can this UE of unique identification in next community, this base station, also in cell range effectively.

Step 504. target BS is that UE carries out after resource reservation, to source base station, sends switching request acknowledgement message.If target BS is UE, distribute device identification, in this message, carried the equipment identification information that comprises device identification.If target BS has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under connected state in base station.

Step 505. source base station connects reconfiguration message by RRC the switching command of target BS transmission is pass-through to UE, wherein comprises the equipment identification information that target BS sends.

Step 506.UE receives after RRC connects reconfiguration message and resolves and store equipment identification information wherein, and in device-to-device (D2D) discovery procedure, uses device identification to send discovery signals.If indicate the RRC connected state of this device identification corresponding UE in equipment identification information, UE is only used this device identification to send discovery signals when in connected state.

Step 507. source base station sends SN state transitions message to target BS, wherein comprises up and descending PDCP layer state, to guarantee order-preserving and harmless switching of packet.

Step 508.UE and source base station disconnect, and synchronize and set up RRC to connect with target BS, then send RRC connection and have reshuffled message to target BS.In this message, can comprise and be used to indicate and need to distribute the explicit of new device identification or implicit expression indication information for UE.For example, implicit expression indication can be the D2D GL information of UE, or the ongoing D2D related application of UE or behavior.

Step 509. target BS is to the MME transmit path transfer request message of UE, to notify this UE of MME to switch and to shift S1 chain of command path.MME send again revise bearer messages to S-GW to shift S1 user plane path.In this path transfer request message, can comprise and be used to indicate and need to distribute the explicit of new device identification or implicit expression indication information for UE.For example, implicit expression indication can be the D2D GL information of UE, or the ongoing D2D related application of UE or behavior.

Step 510.MME is UE distributing equipment sign; Or whether the TAI at UE place or discovery area identification be identical with TAI or the discovery area identification at current place when MME is judged as UE distributing equipment sign, if not identical, for UE distributes new device identification.Optionally, MME can also stipulate scope effective time of this device identification;

It should be noted that based on step 503 and step 510, possible situation is: only MME is UE distributing equipment sign, or only base station is UE distributing equipment sign, or base station and MME be that UE distributing equipment identifies.Base station and MME are in the situation of UE distributing equipment sign, the device identification that UE is used respectively base station or MME to distribute under different RRC states.As the device identification that UE is used MME to distribute under Idle state, UE is used the device identification of base station assigns under connected state.Further, the length of the device identification that UE is used under different RRC states is not identical, as longer than the length of the device identification of using under connected state in the device identification that UE is used under Idle state.Can reduce the number of times that the rear UE of device identification inefficacy obtains again so that the effective coverage of the device identification that UE is used under Idle state ratio is larger under connected state like this, and then reach the object of UE economize on electricity greatly.

The MME reverse-path transfer request acknowledge message of step 511.UE is to target BS.Optionally, the network side identification information (for example, IMSI, S-TMSI etc.) that wherein comprises UE.If MME is UE, distribute device identification, in this message, carried the equipment identification information that comprises device identification.If MME has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under Idle state to MME.

If comprise equipment identification information in the path transfer request acknowledge message that step 512. target BS receives, target BS transmission RRC connection is reshuffled to UE, carries the equipment identification information that comprises device identification in this message.If MME has distributed the scope effective time RRC state corresponding with UE of device identification simultaneously, in this equipment identification information, also comprise the scope and corresponding RRC state effective time of device identification.

Step 513.UE receives after RRC connects reconfiguration message and resolves and store equipment identification information wherein, and in device-to-device discovery procedure, uses device identification to send discovery signals.If indicate the RRC Idle state of this device identification corresponding UE in equipment identification information, UE is only used this device identification to send discovery signals when in Idle state.

The device identification of UE and the mapping relations of network side sign are set up and preserved to step 514. target BS, for the relevant purposes of follow-up D2D.

Step 515. target BS sends user's context release message to source base station, with notification source base station, has switched and has discharged UE related context.

Step 516. source base station is received after user's context release message, can discharge the context of UE, wherein comprises and discharges the device identification that it distributes for this UE.

Embodiment of the method five:

What the present embodiment was described is base station method for UE distributing equipment sign in the S1 of UE handoff procedure.In this embodiment, device identification management entity is arranged in base station and/or MME.As shown in Figure 7, the present embodiment comprises the following steps:

Step 601.UE detects the strong signal of neighbor cell, and sends measurement report to source base station.

The measurement report that step 602. source base station sends according to UE carries out switch decision, and S1 switching flow is carried out in judgement.Determining target BS and sending S1 switching requires message to the MME of UE.This switching requires can comprise and be used to indicate and need to distribute the explicit of new device identification or implicit expression indication information for UE in message.For example, implicit expression indication can be the D2D GL information of UE, or the ongoing D2D related application of UE or behavior.

Step 603. source base station sends and forwards RELOCATION REQUEST message to source MME.In this message, can comprise and be used to indicate and need to distribute the explicit of new device identification or implicit expression indication information for UE.

Step 604. target MME sends S1 interface handover request message to target BS, can comprise and be used to indicate and need to distribute the explicit of new device identification or implicit expression indication information for UE in this message.

Step 605. target BS is that UE divides the device identification that is used in D2D, and optional, target BS can also be stipulated scope effective time of this device identification.

Step 606. target BS sends switching request acknowledgement message to target MME, if target BS is UE, has distributed device identification, in this message, carries the equipment identification information that comprises device identification.If target BS has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under connected state to target BS.

Step 607. target MME is UE distributing equipment sign; Or whether the TAI at UE place or discovery area identification be identical with TAI or the discovery area identification at current place when MME is judged as UE distributing equipment sign, if not identical, for UE distributes new device identification.Optionally, MME can also stipulate scope effective time of this device identification;

It should be noted that based on step 605 and step 607, possible situation is: only MME is UE distributing equipment sign, or only base station is UE distributing equipment sign, or base station and MME be that UE distributing equipment identifies.Base station and MME are in the situation of UE distributing equipment sign, the device identification that UE is used respectively base station or MME to distribute under different RRC states.As the device identification that UE is used MME to distribute under Idle state, UE is used the device identification of base station assigns under connected state.Further, the length of the device identification that UE is used under different RRC states is not identical, as longer than the length of the device identification of using under connected state in the device identification that UE is used under Idle state.Can reduce the number of times that the rear UE of device identification inefficacy obtains again so that the effective coverage of the device identification that UE is used under Idle state ratio is larger under connected state like this, and then reach the object of UE economize on electricity greatly.

Step 608. target MME sends and forwards relocation response message to source MME, if target MME receives equipment identification information from target BS, in this message, comprises the equipment identification information receiving from target BS.If target MME is UE, distribute device identification, in this message, carried the equipment identification information that comprises device identification that target MME distributes.If target MME has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, target MME can also indicate the residing RRC state of the corresponding UE of distributed device identification.

Step 609-611.UE resolves and stores equipment identification information wherein after receiving RRC message, and in device-to-device discovery procedure, uses device identification to send discovery signals.If indicate the RRC connected state of device identification corresponding UE in equipment identification information, UE is only used this device identification to send discovery signals when in corresponding RRC state.If UE receives two device identifications, UE is used corresponding device identification to send discovery signals according to current residing RRC state.

Embodiment of the method six:

What the present embodiment was described is base station method for UE distributing equipment sign in the device identification assigning process of UE.In this embodiment, device identification management entity is arranged in base station.As shown in Figure 8, the present embodiment comprises the following steps:

Step 701.UE triggers initiating equipment sign assigning process based on following condition:

Here, described condition comprises following any one or more combination:

1) UE in Idle state or connected state detects the device identification having distributed and exceeds scope effective time;

2) ECGI that Idle state UE detects its persistent district changes;

3) Event triggered, for example, UE opens D2D module, and UE opens certain application program, and UE opens D2D and finds/be found function etc.;

4) periodic triggers, for example UE periodically carries out D2D discovery/be found based on application program and upgrades the requesting service sign of the demand cycle of buddy list and distribute;

5) periodicity of Event triggered, for example, UE opens periodic request device identification and distributes.

Step 702.UE transmitting apparatus sign allocation request message is to base station (connecting if UE in Idle state, need first set up RRC).Optionally, in this message, can also comprise status indication information, be used to indicate the UE state corresponding to device identification of required distribution.Optionally, in this message, comprise device identification assignment cause value, as exceed scope effective time, ECGI change etc.Optionally, the MME identification information that comprises UE in this message.Optionally, for example in this message, comprise the last time, for the base station identification information of UE distributing equipment sign and the identification information of UE (, UE is at the C-RNTI of upper once community, and the last time is the device identification of UE distribution etc.).

Step 703. base station is UE distributing equipment sign.Or scope effective time of this device identification can also be stipulated in base station.This device identification can this UE of unique identification in next community, this base station, also in cell range effectively.Or if comprise status indication information in the device identification allocation request message that UE sends, base station determines whether as UE distributing equipment sign according to this status indication information.Concrete, if status indication information is indicated the connected state of the device identification corresponding UE of required distribution, this base station is UE distributing equipment sign.If status indication information is indicated the Idle state of the device identification corresponding UE of required distribution, can be according to described in embodiment seven, this base station is not UE distributing equipment sign, and sends device identification allocation request message to the MME of UE

Step 704. base station is to UE reverting equipment sign assignment response message.In this message, carry the equipment identification information that comprises device identification.If scope effective time of device identification has been distributed in base station simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under connected state in base station.

After step 705.UE receiving equipment sign assignment response message, resolve and store equipment identification information wherein, and in device-to-device discovery procedure, use device identification to send discovery signals.If indicate the RRC connected state of this device identification corresponding UE in equipment identification information, UE is only used this device identification to send discovery signals when in connected state.

Step 706. is optional, if it is that community ECGI changes (because Idle state UE moves out former persistent district) that the device identification that base station receives distributes the cause value of request indication, the source base station identification information transmitting apparatus sign releasing request message that base station sends according to UE is to source base station, the identification information that comprises UE in this message, for example, the C-RNTI of UE in upper once community (cell-of-origin), last source base station is the device identification of UE distribution etc.

Step 707. source base station is released to the device identification that this UE distributes.Optionally, source base station transmitting apparatus sign discharges acknowledge message to the current base station (target BS) for UE service, to confirm that device identification has discharged.

Step 708. base station transmitting apparatus identification renewal message is to MME.Optionally, in this message, comprising base station is the new device identification that UE distributes.Step 708 can also be carried out before step 706 herein.

If comprise base station in the device identification updating message that step 709. MME receives, be the new device identification that UE distributes, MME upgrades the device identification of this UE.MME transmitting apparatus identification renewal acknowledge message is to base station, in this message, comprise this UE network side identification information (as, IMSI, S-TMSI etc.).The device identification of this UE and the mapping relations of network side sign can be set up in base station after receiving.

Embodiment of the method seven:

What the present embodiment was described is MME method for UE distributing equipment sign in the device identification assigning process of UE.In this embodiment, device identification management entity is arranged in MME.As shown in Figure 9, comprise the following steps:

Step 801.UE triggers initiating equipment sign assigning process based on following condition.

Here, described condition comprises following any one or more combination:

2) TAI/ that Idle state UE detects its persistent district finds that area identification changes.Wherein find that region is comprised of one or more communities, the discovery area identification in this discovery region of unique identification is broadcasted in each community in a discovery region;

Step 802.UE transmitting apparatus sign allocation request message is to base station (connecting if UE in Idle state, need first set up RRC).Optionally, in this message, can also comprise status indication information, be used to indicate the UE state corresponding to device identification of required distribution.Optionally, comprise device identification assignment cause value in this message, as exceed scope effective time, TAI changes, and finds area identification change etc.Optionally, the MME identification information that comprises UE in this message.Optionally, in this message, comprising last is the MME identification information of UE distributing equipment sign and the identification information of UE (for example, the IMSI of UE or S-TMSI, the last device identification for UE distribution etc.).

Step 803. base station transmitting apparatus sign distributes request to the MME of UE.Or if comprise status indication information in the device identification allocation request message that UE sends, base station determines whether as UE distributing equipment sign according to this status indication information.Concrete, if status indication information is indicated the Idle state of the device identification corresponding UE of required distribution, this base station is not UE distributing equipment sign, and sends device identification allocation request message to the MME of UE.Optionally, in this message, can also comprise status indication information, be used to indicate the UE state corresponding to device identification of required distribution.Optionally, comprise device identification assignment cause value in this message, as exceed scope effective time, TAI changes, and finds area identification change etc.Optionally, in this message, comprise the last MME identification information for UE distributing equipment sign and the identification information of UE.

Step 804.MME is UE distributing equipment sign.Or MME can also stipulate scope effective time of this device identification.The tracing area that this device identification forms in a plurality of communities or find in region can this UE of unique identification, also at tracing area or find in region effectively.Or if comprise status indication information in the device identification allocation request message that MME receives, MME determines whether as UE distributing equipment sign according to this status indication information.Concrete, if status indication information is indicated the Idle state of the device identification corresponding UE of required distribution, this MME is UE distributing equipment sign.

Step 805.MME is to base station reverting equipment sign assignment response message.In this message, carry the equipment identification information that comprises device identification.If MME has distributed scope effective time of device identification simultaneously, in this equipment identification information, also comprise scope effective time of device identification; Optionally, can also to indicate distributed device identification be that UE is used under Idle state to MME.

Step 806. is optional, if it is that community TAI/ finds that area identification changes that the device identification that MME receives distributes the cause value of request indication, the source MME identification information transmitting apparatus sign releasing request message that MME sends according to UE is to source MME, the identification information that comprises UE in this message, for example, the IMSI of UE or S-TMSI, last source MME is the device identification of UE distribution etc.Step 606 can be carried out before or after step 606 herein.

Step 807. source MME is released to the device identification that UE distributes.Optionally, MME transmitting apparatus sign in source discharges acknowledge message to the current MME(target MME for UE service), to confirm that device identification has discharged.

Step 808. base station sends to UE by the equipment identification information of reception by device identification assignment response message, and what carry is original equipment sign, and request discharges original equipment sign.

After step 809.UE receiving equipment sign assignment response message, resolve and store equipment identification information wherein, and in device-to-device discovery procedure, use device identification to send discovery signals.If indicate the RRC Idle state of this device identification corresponding UE in equipment identification information, UE is only used this device identification to send discovery signals when in Idle state.

Embodiment of the method eight:

What the present embodiment was described is the method for UE request base station release device sign.In this embodiment, device identification management entity is arranged in base station.As shown in figure 10, the present embodiment comprises the following steps:

Step 901.UE determines the current device identification that do not need to use.For example, UE has closed D2D module, or has closed D2D discovery/be found function, or closes certain application program.

Step 902.UE transmitting apparatus sign releasing request message is to base station (connecting if UE in Idle state, need first set up RRC).Optionally, in this message, can also comprise status indication information, be used to indicate the UE state corresponding to device identification of required release.Optionally, in this message, comprise device identification release cause value.Optionally, the MME identification information that comprises UE in this message.Optionally, in this message, comprise the device identification that needs release.

Step 903. base station discharges the device identification of UE.Or if comprise status indication information in the device identification allocation request message that UE sends, base station determines whether to need release device sign according to this status indication information.Concrete, if status indication information is indicated the connected state of the device identification corresponding UE of required distribution, this base station is released to the device identification that UE distributes.

Step 904. is optional, and transmitting apparatus sign in base station discharges acknowledge message to UE, to confirm that device identification discharges.

Step 905. base station transmitting apparatus sign discharges notification message to the MME of UE, to notify this device identification of MME to discharge.Optionally, in this message, comprise the network side sign of UE, or the device identification having discharged.

Step 906. is optional, and MME transmitting apparatus sign discharges acknowledge message to base station, to confirm that device identification discharges.

Embodiment of the method nine:

What the present embodiment was described is the method for UE request MME release device sign.In this embodiment, device identification management entity is arranged in MME.As shown in figure 11, the present embodiment comprises the following steps:

Step 1001.UE determines the current device identification that do not need to use.For example, UE has closed D2D module, or has closed D2D discovery/be found function, or closes certain application program.

Step 1002.UE transmitting apparatus sign releasing request message is to base station (connecting if UE in Idle state, need first set up RRC).Optionally, in this message, can also comprise status indication information, be used to indicate the UE state corresponding to device identification of required release.Optionally, in this message, comprise device identification release cause value.Optionally, the MME identification information that comprises UE in this message.Optionally, in this message, comprise the device identification that needs release.

Step 1003. base station transmitting apparatus sign releasing request message is to MME.Or if comprise status indication information in the device identification allocation request message that UE sends, base station determines whether to need release device sign according to this status indication information.Concrete, if status indication information is indicated the Idle state of the device identification corresponding UE of required distribution, the not release of actuating equipment sign of this base station, but device identification releasing request message is sent to MME.Optionally, in this message, can also comprise status indication information, be used to indicate the UE state corresponding to device identification of required release.Optionally, in this message, comprise device identification release cause value.Optionally, in this message, comprise the device identification that needs release.

Step 1004.MME discharges the device identification of UE.Or if comprise status indication information in the device identification allocation request message that MME receives, MME determines whether to need release device sign according to this status indication information.Concrete, if status indication information is indicated the Idle state of the device identification corresponding UE of required distribution, this MME is released to the device identification that UE distributes.

Step 1005. is optional, and MME transmitting apparatus sign discharges response message to base station, to confirm that device identification discharges.

Step 1006. is optional, and transmitting apparatus sign in base station discharges response message to UE, to confirm that device identification discharges.

A distribution system for device identification, this system comprises: the device identification allocation units and the device identification transmitting element that are positioned at device identification management entity side; Wherein, state device identification allocation units and be used to UE distributing equipment sign; Device identification transmitting element is for transmission information to described UE, and described packets of information is containing described device identification; Described device identification finds for device-to-device and/or device-to-device communication identifies described UE.

Preferably, device identification allocation units are further used in the attaching process of UE as described UE distributing equipment identifies;

Preferably, device identification allocation units, are further used for the device identification that UE uses under different RRC states and are distributed by different device identification management entities; Or the device identification that UE is used under different RRC states is distributed by identical device identification management entity.

Preferably, device identification allocation units, are further used for the length of the device identification of using under different RRC states for UE that distributes for UE for not identical.

Preferably, device identification allocation units, being further used for according to the signing grade of described UE is described UE distributing equipment sign.

Preferably, device identification allocation units, are further used for the device identification length difference into the UE distribution of the signing grade of difference;

Preferably, device identification transmitting element, is further used for device identification that UE uses under different RRC states by under different device identification management entity distribution condition, also comprises UE state corresponding to described device identification in the described information of transmission; Described UE state comprises: Idle state and connected state.

Preferably, device identification transmitting element, also comprises scope effective time of described device identification in the described information that is further used for sending.

Preferably, device identification allocation units, be further used in the situation that be described UE distributing equipment sign in the device identification assigning process of described UE, described device identification exceeds after scope effective time, receives the request that comes from the new device identification of the distribution of described UE;

Preferably, this system also comprises: be positioned at the device identification releasing unit of device identification management entity side, after distributing equipment identifies, judge while needing to discharge the device identification having distributed, discharge the device identification having distributed.

Preferably, device identification releasing unit, is further used for discharging indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed;

Preferably, device identification releasing unit, in the described information that is further used for sending, also comprise described device identification effective time scope situation under, exceed and judge needs after scope effective time and discharge the device identification having distributed, and by the device identification release having distributed.

The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.

Claims

1. a distribution method for device identification, is characterized in that, the method comprises:

2. method according to claim 1, is characterized in that, described device identification management entity is UE distributing equipment sign, further comprises:

3. method according to claim 2, is characterized in that, described device identification management entity is described UE distributing equipment sign in the handoff procedure of UE, further comprises:

4. method according to claim 1, is characterized in that, described device identification management entity is UE distributing equipment sign, further comprises:

5. method according to claim 4, is characterized in that, the device identification that described UE is used under different RRC states is distributed by different device identification management entities, further comprises:

6. method according to claim 1, is characterized in that, described device identification management entity is UE distributing equipment sign, further comprises:

7. method according to claim 1, is characterized in that, described device identification management entity is UE distributing equipment sign, further comprises:

8. method according to claim 7, is characterized in that, described device identification management entity is described UE distributing equipment sign according to the signing grade of described UE, further comprises:

9. method according to claim 1, is characterized in that, described device identification management entity sends information to described UE, and described packets of information, containing described device identification, further comprises:

10. method according to claim 1, is characterized in that, described device identification management entity sends information to described UE, and described packets of information, containing described device identification, further comprises:

11. methods according to claim 2, is characterized in that, described device identification management entity is described UE distributing equipment sign in the device identification assigning process of described UE, further comprises:

12. according to the method described in claim 1 to 11 any one, it is characterized in that, described device identification management entity is that after UE distributing equipment identifies, the method also comprises:

13. methods according to claim 12, is characterized in that, described device identification management entity judges whether to need to discharge the device identification having distributed, and further comprises:

14. methods according to claim 13, is characterized in that, described device identification management entity discharges indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed, and further comprises:

15. methods according to claim 13, it is characterized in that, described device identification management entity discharges indication information according to the device identification of the current device identification management entity for described UE distributing equipment sign and judges whether to need to discharge the device identification having distributed, and further comprises:

16. methods according to claim 12, is characterized in that, described device identification management entity judges whether to need to discharge the device identification having distributed, and further comprises:

17. according to the method described in claim 1 to 11 any one, it is characterized in that, described equipment management entity is the device identification that distributes of UE by following any one or more composition:

Identification information for device-to-device purposes;

The Temporary Mobile Subscriber Identity TMSI of described UE;

The international mobile subscriber identity IMSI of described UE;

The IP address of described UE;

The tracing area TA identification information at described UE place.

The distribution system of 18. 1 kinds of device identifications, is characterized in that, this system comprises: the device identification allocation units and the device identification transmitting element that are positioned at device identification management entity side; Wherein,

19. systems according to claim 18, is characterized in that, described device identification allocation units, and being further used in the attaching process of UE is described UE distributing equipment sign;

20. systems according to claim 18, is characterized in that, described device identification allocation units are further used for the device identification that UE uses under different RRC states and are distributed by different device identification management entities; Or the device identification that UE is used under different RRC states is distributed by identical device identification management entity.

21. systems according to claim 18, is characterized in that, described device identification allocation units are further used for the length of the device identification of using under different RRC states for UE that distributes for UE for not identical.

22. systems according to claim 18, is characterized in that, described device identification allocation units, and being further used for according to the signing grade of described UE is described UE distributing equipment sign.

23. systems according to claim 22, is characterized in that, described device identification allocation units are further used for the device identification length difference into the UE distribution of the signing grade of difference;

24. systems according to claim 18, it is characterized in that, described device identification transmitting element, be further used for device identification that UE uses under different RRC states by under different device identification management entity distribution condition, in the described information of transmission, also comprise UE state corresponding to described device identification; Described UE state comprises: Idle state and connected state.

25. systems according to claim 18, is characterized in that, described device identification transmitting element also comprises scope effective time of described device identification in the described information that is further used for sending.

26. systems according to claim 19, it is characterized in that, described device identification allocation units, be further used in the situation that be described UE distributing equipment sign in the device identification assigning process of described UE, described device identification exceeds after scope effective time, receives the request come from the new device identification of the distribution of described UE;

27. according to claim 18 to the system described in 26 any one, it is characterized in that, this system also comprises: the device identification releasing unit that is positioned at device identification management entity side, after distributing equipment identifies, judge while needing to discharge the device identification having distributed, discharge the device identification having distributed.

28. systems according to claim 27, is characterized in that, described device identification releasing unit is further used for discharging indication information according to the device identification of described UE and judges whether to need to discharge the device identification having distributed;

29. systems according to claim 27, it is characterized in that, described device identification releasing unit, in the described information that is further used for sending, also comprise described device identification effective time scope situation under, after exceeding scope effective time, judge the device identification that needs release has distributed, and the device identification having distributed is discharged.