CN103686740A

CN103686740A - User equipment identifier allocation method, device and system

Info

Publication number: CN103686740A
Application number: CN201210321825.4A
Authority: CN
Inventors: 冯淑兰; 周晗
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-09-03
Filing date: 2012-09-03
Publication date: 2014-03-26
Anticipated expiration: 2032-09-03
Also published as: CN103686740B

Abstract

The embodiment of the invention provides a user equipment identifier allocation method, device and system, and relates to the field of communication. A D2D (Device-to-Device) communication identifier comprises a preset equipment management entity ID and a temporary ID, so that transmission redundancy is reduced, and communication interference is also avoided. The method provided by the embodiment of the invention comprises the following steps: an equipment management entity receives a notice that first user equipment starts D2D communication service; the equipment management entity allocates the D2D communication identifier for the first user equipment, and the D2D communication identifier comprises a preset equipment management entity identifier ID and a user equipment temporary-identifier ID, wherein the user equipment temporary-identifier ID is unique in the coverage area of the equipment management entity, and the equipment management entity ID corresponds to the equipment management entity; the equipment management entity sends the allocated D2D communication identifier to the first user equipment.

Description

Method, Apparatus and system that a kind of customer equipment identification distributes

Technical field

The present invention relates to the communications field, relate in particular to method, Apparatus and system that a kind of customer equipment identification distributes.

Background technology

End-to-end (Device-to-Device, abbreviation D2D) communication is a kind of under the control of system, allow the new technique directly communicating by multiplexing local resource between terminal, it can increase frequency spectrum efficiency of cellular communication system, reduce terminal transmit power, solve to a certain extent the problem of wireless communication system frequency spectrum resource scarcity.In order to identify a plurality of communication links in D2D communication, the packet transmitting generally comprises the device identification (Identifier of communication source node and communication objective node, be called for short ID), prior art is that the method for user equipment allocation D2D communication identifier generally has two kinds:

1, be the globally unique ID of user equipment allocation, the hardware mac address that for example comprises data receiver in each packet in WLAN standard agreement 802.11 and data receiver's MAC Address, the sequence that 802.11 MAC Address that adopt are globally unique 48bit, therefore the device id that comprises 96bit in each packet, causes transmitting redundancy larger.

2, be the relatively independent interim ID of user equipment allocation in overlay area, for example, in cellular network, the interim ID of user equipment allocation by base station in behavior overlay area, the amount of information of the interim ID of subscriber equipment is less, can reduce transmitting redundancy, but likely there will be ID conflict when the subscriber equipment between different base station carries out D2D communication.

Prior art can not be for user equipment allocation takies the D2D communication identifier that bit number is less in the situation that avoiding the conflict of D2D communication identifier, and making to reduce transmitting redundancy and contention-free can not take into account.

Summary of the invention

Method, Apparatus and system that the embodiment of the present invention provides a kind of customer equipment identification to distribute, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, both reduced the bit number of subscriber equipment D2D communication identifier, thereby minimizing transmitting redundancy, has also avoided the conflict of D2D communication identifier simultaneously.

For achieving the above object, embodiments of the invention adopt following technical scheme:

First aspect, a kind of method that the embodiment of the present invention provides customer equipment identification to distribute, the method comprises:

Equipment management entity receives the notice of the end-to-end D2D communication service of first user device start;

Equipment management entity is described first user devices allocation D2D communication identifier, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Equipment management entity sends the D2D communication identifier distributing to described first user equipment.

In the possible implementation of the first, according to first aspect, in described method, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

In the possible implementation of the second, in conjunction with first aspect or the possible implementation of the first, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

In the third possible implementation, in conjunction with first aspect or possible implementation or the possible implementation of the second of the first, its method also comprises:

Receive the D2D communication identifier update request that described first user equipment sends;

If determine the equipment management entity overlay area under first user equipment described in described first user equipment changing according to the D2D communication identifier update request of described first user equipment, described equipment management entity is that described first user equipment is redistributed D2D communication identifier.

In the 4th kind of possible implementation, in conjunction with first aspect or the possible implementation of the first to any in the third possible implementation, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

In the 5th kind of possible implementation, in conjunction with first aspect or the 4th kind of possible implementation, independent allocation in the equipment management entity overlay area of the interim ID of described subscriber equipment under described subscriber equipment, specific implementation is: the interim ID of described subscriber equipment is unique in described minimum one-level equipment management entity overlay area in described multistage network.

Second aspect, a kind of method that the embodiment of the present invention provides customer equipment identification to distribute, the method comprises:

To equipment management entity, send the notice that starts end-to-end D2D communication service, take and ask described equipment management entity as user equipment allocation D2D communication identifier;

Receive the D2D communication identifier that described equipment management entity is distributed, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Described subscriber equipment carries out D2D according to distributed D2D communication identifier with the second subscriber equipment or described same subscriber equipment and communicates by letter.

In the possible implementation of the first, according to second aspect, in described method, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

In the possible implementation of the second, according to second aspect or the possible implementation of the first, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

In the third possible implementation, in conjunction with second aspect, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

In the 4th kind of possible implementation, in conjunction with second aspect or the third possible implementation, to any in the third possible implementation, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

The third aspect, the embodiment of the present invention provides a kind of customer equipment identification assigned unit, and this device comprises:

Receiving element, for receiving the notice of the end-to-end D2D communication service of first user device start, and by the notification transmission of described first user device start D2D communication service to allocation units;

Allocation units, for receive the notice of described first user device start D2D communication service from described receiving element, and be described first user devices allocation D2D communication identifier, and will be transferred to transmitting element for the D2D communication identifier of described first user devices allocation, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Transmitting element, for be received as the D2D communication identifier of described first user devices allocation from described allocation units, and sends the D2D communication identifier distributing to described first user equipment.

In the possible implementation of the first, according to the third aspect, this equipment management entity also comprises memory cell, for storage device management entity ID, wherein, to be less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times different for the minimum range of overlay area.

In the possible implementation of the second, according to the third aspect or the possible implementation of the first, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

In the third possible implementation, according to the third aspect or the possible implementation of the second, described receiving element also for: receive the D2D communication identifier update request that described first user equipment sends;

Described allocation units also for: if according to the D2D communication identifier update request of described first user equipment determine described in described first user equipment changing the equipment management entity overlay area under first user equipment described equipment management entity be that described first user equipment is redistributed D2D communication identifier.

In the 4th kind of possible implementation, according to the third aspect or first to the 3rd any possible implementation, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

In the 5th kind of possible implementation, according to the third aspect or the 4th kind of possible implementation, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

Fourth aspect, the embodiment of the present invention provides a kind of equipment management entity, and this equipment management entity comprises

Receiver, for receiving the notice of the end-to-end D2D communication service of first user device start, and by the notification transmission of described first user device start D2D communication service to processor;

Processor, for receive the notice of described first user device start D2D communication service from described receiver, and be described first user devices allocation D2D communication identifier, and will be transferred to transmitter for the D2D communication identifier of described first user devices allocation, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Transmitter, for be received as the D2D communication identifier of described first user devices allocation from described processor, and sends the D2D communication identifier distributing to described first user equipment.

Memory, for storage device management entity ID.

In the possible implementation of the first, according to fourth aspect, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

In the possible implementation of the second, according to fourth aspect or the possible implementation of the first, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

In the third possible implementation, according to fourth aspect or first or the possible implementation of the second, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

In the 4th kind of possible implementation, according to fourth aspect or the third possible implementation, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

The 5th aspect, the embodiment of the present invention provides a kind of subscriber equipment, and this subscriber equipment comprises:

Transmitting element, for send the notice that starts end-to-end D2D communication service to equipment management entity, so that described equipment management entity is user equipment allocation D2D communication identifier;

The D2D communication identifier that receiving element distributes for receiving described equipment management entity, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Communication unit, communicates by letter for carrying out D2D according to distributed D2D communication identifier with the second subscriber equipment or described same subscriber equipment.

In the possible implementation of the first, according to the 5th aspect, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

In the possible implementation of the second, according to the 5th aspect or the possible implementation of the first, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

In the third possible implementation, according to the 5th aspect or the possible implementation of the first, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

In the 4th kind of possible implementation, according to the 5th aspect or the third possible implementation, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

The 6th aspect, the embodiment of the present invention provides a kind of subscriber equipment, and this subscriber equipment comprises:

Transmitter, for send the notice that starts end-to-end D2D communication service to equipment management entity, so that described equipment management entity is user equipment allocation D2D communication identifier;

Receiver, the D2D communication identifier distributing for receiving described equipment management entity, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in the equipment management entity overlay area under described subscriber equipment, described equipment management entity ID is corresponding with equipment management entity, make first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Processor, communicates by letter for carrying out D2D according to distributed D2D communication identifier with the second subscriber equipment or described same subscriber equipment.

In the possible implementation of the first, according to the 6th aspect, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

In the possible implementation of the second, according to the 6th aspect or the possible implementation of the first, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

In the third possible implementation, according to the 6th aspect or the possible implementation of the first, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

In the 4th kind of possible implementation, according to the 6th aspect or the third possible implementation, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

The 7th aspect, the system that the embodiment of the present invention provides a kind of device identification to distribute, this system comprises:

Customer equipment identification assigned unit described in above-mentioned any one, or the equipment management entity described in above-mentioned any one;

And, the subscriber equipment described in above-mentioned any one.

Method, Apparatus and system that the device identification that the embodiment of the present invention provides distributes, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, make the D2D communication identifier of any two subscriber equipmenies that carry out D2D communication different, and it is different to make it possible to carry out from same subscriber equipment the D2D communication identifier of any two subscriber equipmenies that D2D communicates by letter; Both avoid communication contention aware, reduced again transmitting redundancy.Thereby overcome in prior art, can not the in the situation that of contention-free, be the less D2D communication identifier of user equipment allocation bit number, make to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The flow chart of a kind of customer equipment identification distribution method that Fig. 1 provides for the embodiment of the present invention;

The flow chart of the another kind of customer equipment identification distribution method that Fig. 2 provides for the embodiment of the present invention;

The flow chart of the another kind of customer equipment identification distribution method that Fig. 3 provides for the embodiment of the present invention;

The multiplexing schematic diagram of equipment management entity ID that Fig. 4 provides for the embodiment of the present invention;

The equipment management entity classification schematic diagram that Fig. 5 provides for the embodiment of the present invention;

The structure drawing of device of a kind of equipment management entity that Fig. 6 provides for the embodiment of the present invention;

The structure drawing of device of the another kind of equipment management entity that Fig. 7 provides for the embodiment of the present invention;

The structure drawing of device of a kind of subscriber equipment that Fig. 8 provides for the embodiment of the present invention;

The structure drawing of device of the another kind of subscriber equipment that Fig. 9 provides for the embodiment of the present invention;

The system diagram that a kind of customer equipment identification that Figure 10 provides for the embodiment of the present invention distributes.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

On the one hand, a kind of method that the embodiment of the present invention provides customer equipment identification to distribute, referring to Fig. 1, comprising:

101: equipment management entity receives the notice of the end-to-end D2D communication service of first user device start;

Exemplary, the device identification distribution method that the embodiment of the present invention provides can be applied to multiple communication network, Generation Mobile Telecommunication System technology (The Second Generation Mobile Communication Technology for example, be called for short 2G), 3G (Third Generation) Moblie technology (The Third Generation Mobile Communication Technology, be called for short 3G), Long-Term Evolution (Long Term Evolution is called for short LTE) network.

Exemplary, equipment management entity can be independent hardware or software, also can be a part for other equipment, such as being third generation partner program (The Third Generation Partnership Project, abbreviation 3GPP) tracing area (the Tracking Area in, be called for short TA) management entity, master station in 2G (Main Control Station, be called for short MSC) or VLR Visitor Location Register (Visitor Location Register, be called for short VLR), serving GPRS support node in 3G (Serving GPRS Support Node, be called for short SGSN), mobile management entity in LTE network (Mobile Management Entity, be called for short MME), attaching position register (Home Location Register, be called for short HLR) or location-server or contiguous service server etc.

102: equipment management entity is described first user devices allocation D2D communication identifier, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Exemplary, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

Because only have, be not more than D2D communication distance apart (two subscriber equipmenies carry out the ultimate range of D2D communication, for example 500 meters) subscriber equipment can carry out D2D communication, so, the D2D communication distance that the minimum range of two equipment management entity overlay areas is greater than 2 times, divide two subscriber equipmenies in these two equipment management entity can not carry out D2D communication, also can not carry out D2D with same subscriber equipment communicates by letter, so, as long as it is different that the minimum range in ensuring coverage region is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times, the minimum range of overlay area is greater than the equipment management entity ID of two equipment management entity of the D2D communication distance of 2 times can be identical, can further reduce transmitting redundancy like this.

In actual conditions, the overlay area of an equipment management entity is often greater than the D2D communication distance of 2 times, so adjacent equipment management entity ID is different, non-conterminous equipment management entity ID can be identical, carries out multiplexing.

Further, subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of subscriber equipment.

Exemplary, D2D communication identifier is comprised of the equipment management entity ID presetting and the interim ID two parts of subscriber equipment, wherein, subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of subscriber equipment, for example, can be by dividing multiplexing realization of the subscriber equipment temporary mark ID between distinct device management entity, therefore, with respect to reducing the bit number of D2D communication identifier for the globally unique ID of each user equipment allocation, thereby can reduce transmitting redundancy.

Further, the method can also comprise:

If according to the D2D communication identifier update request of described first user equipment determine described in described first user equipment changing the equipment management entity overlay area under first user equipment described equipment management entity be that described subscriber equipment is redistributed D2D communication identifier.

Further, equipment management entity can be arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, equipment management entity ID comprises at least one-level, every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity, and the interim ID of described first user equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

Equipment management entity can be carried out classification according to the size of overlay area, wherein the one-level of overlay area minimum is minimum one-level equipment management entity, in the present embodiment, according to overlay area is descending, can be called successively first order equipment management entity, second level equipment management entity, wait the like, accordingly, the equipment management entity ID descending according to overlay area can be called first order equipment management entity ID successively, second level management entity ID, wait the like.Wherein, while equipment management entity being carried out to classification according to the size of overlay area, the selection of overlay area can be determined according to the overlay area of the equipment in above-mentioned each network system, for example, the overlay area of MME in LTE network, also can be according to administrative division, for example, each district of Beijing arranges an equipment management entity, the secondary administrative region that can also manage in each district arranges one-level equipment management entity, for example, can be in four secondary administrative regions of Haidian District, region, Shangdi for example, region, Qinghe, region, Zhong Guan-cun and region, Fragrance Hill respectively arrange an equipment management entity.

The equipment management entity ID of every one-level presets in system, the method that presets does not limit, for example, can according to predefined policy conferring, distribute and obtain by the equipment management entity of every one-level, or the upper level equipment management entity by same one-level equipment management entity is distributed and is obtained according to predefined strategy, or the mode that can distinguish equipment management entity according to other presets, or artificially according to default strategy, preset.

Exemplary, the method of being consulted to distribute by equipment management entity can be: by the first equipment management entity, in optional equipment management entity ID, selected arbitrarily an equipment management entity ID, then by selection result broadcast announcement, give the adjacent equipment management entity of the first equipment management entity ID, adjacent equipment management entity can be selected arbitrarily and formerly distribute neighbor device management entity ID different by the sequencing of receiving this broadcast announcement in remaining equipment management entity ID, and be less than the equipment management entity ID that the equipment management entity ID of 2 times of D2D communication distances is different and be broadcast to neighbouring device management entity separately from the coverage minimum range of formerly distributing, the like complete the distribution of all devices management entity ID.Wherein, the first equipment management entity can be any one equipment management entity.

103: to described first user equipment, send the D2D communication identifier distributing.

Equipment management entity is directly issued subscriber equipment using the D2D communication identifier that comprises equipment management entity ID and the interim ID of subscriber equipment distributing as a message; Or equipment management entity is issued subscriber equipment by equipment management entity ID and the interim ID of subscriber equipment respectively, for example equipment management entity ID at different levels issue respectively all subscriber equipmenies of equipment management entity at different levels overlay area by broadcast separately, and the interim ID of subscriber equipment issues user by minimum one-level equipment management entity.

The method that the device identification that the embodiment of the present invention provides distributes, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, make the D2D communication identifier of any two subscriber equipmenies that carry out D2D communication different, and it is different to make it possible to carry out from same subscriber equipment the D2D communication identifier of any two subscriber equipmenies that D2D communicates by letter; Both avoid communication contention aware, reduced again transmitting redundancy.Thereby overcome in prior art, can not the in the situation that of contention-free, be the less D2D communication identifier of user equipment allocation bit number, make to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

Referring to Fig. 2, the distribution method of the another kind of customer equipment identification providing for the embodiment of the present invention, as shown in the figure, can comprise following steps:

201: first user equipment sends the notice that starts end-to-end D2D communication service to equipment management entity, take and ask described equipment management entity as described first user devices allocation D2D communication identifier;

Exemplary, during first user device start D2D communication service, to equipment management entity, send the notice that starts D2D communication service, take requesting service management entity as first user devices allocation D2D communication identifier.

202: described first user equipment receives the D2D communication identifier that described equipment management entity is distributed, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different.

Exemplary, subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of subscriber equipment.

Exemplary, equipment management entity can be arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, equipment management entity ID comprises at least one-level, every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity, when equipment management entity at least comprises two-stage, the interim ID of subscriber equipment is unique in the equipment management entity overlay area under this subscriber equipment

203: described first user equipment carries out D2D according to distributed D2D communication identifier with the second subscriber equipment or described same subscriber equipment and communicates by letter.

Exemplary, first user equipment receives the complete D2D communication identifier that comprises equipment management entity ID and the interim ID of subscriber equipment; Or first user equipment receives respectively the ID of equipment management entity at different levels from different broadcasts, and from issuing the message of subscriber equipment, minimum one-level equipment management entity receives the interim ID of subscriber equipment, first user equipment is again according to received management entity ID and the interim ID of subscriber equipment, obtain voluntarily the D2D communication identifier of subscriber equipment, then according to D2D communication identifier, carry out D2D with the second subscriber equipment or same subscriber equipment and communicate by letter.

Below by four specific embodiments, said method embodiment is described.

Embodiment mono-:

In the present embodiment, be provided with one-level equipment management entity, and the overlay area of equipment management entity is corresponding to a TA (Tracking Area) region or a plurality of continuous TA region, if the overlay area of an equipment management entity is during corresponding to a TA region, for LTE, equipment management entity can be configured in mobile management entity (the Mobile Management Entity in LTE network, be called for short MME) on, be that equipment management entity is a functional unit of MME, the overlay area of equipment management entity is identical with MME, if the overlay area of an equipment management entity is corresponding to a plurality of continuous TA regions, for LTE, TA region is corresponding to the management area of a MME, this equipment management entity can be configured on one of them MME in these continuous TA regions, be that equipment management entity is as the functional unit of one of them MME.Equipment management entity can be also the functional entity that is independent of MME.

Referring to Fig. 3, can comprise:

301: equipment management entity receives the notice that subscriber equipment starts D2D communication service;

Exemplary, subscriber equipment, can be by the MME under this base station of base stations under this subscriber equipment when initial access network, the line position of going forward side by side registration.When subscriber equipment initial access network, the notice of subscriber equipment startup D2D communication service can be with other initial access network information, for example location registration information, issues MME, and the notice that subscriber equipment is started to D2D communication service by MME is issued equipment management entity.

When subscriber equipment starts D2D communication service, by the base station under it, notify the equipment management entity under this base station.Subscriber equipment starts the message of D2D communication service, and the message that can issue MME with other is issued MME, and the notice that subscriber equipment is started to D2D communication service by MME is issued equipment management entity.Also can issue separately MME, the notice that subscriber equipment is started to D2D communication service by MME is issued equipment management entity.

302: equipment management entity is the D2D communication identifier that this user equipment allocation D2D signal post needs, and the D2D communication identifier that GaiD2D signal post needs is comprised of equipment management entity ID and the interim ID two parts of subscriber equipment.

Wherein, equipment management entity ID presets and is kept in this equipment management entity, and the method for setting can be by completing according to predefined policy conferring between each management entity.Or by upper level equipment management entity, according to predefined strategy, distributed, or the mode that can distinguish equipment management entity according to other presets, or artificially set according to predefined strategy.In the present embodiment because only there is one-level equipment management entity, so select to preset each management entity ID by the negotiation between each equipment management entity, described in concrete machinery of consultation ditto, repeat no more herein.

Because only have the subscriber equipment that is not more than D2D communication distance apart can carry out D2D communication, so, the D2D communication distance that the minimum range of two equipment management entity overlay areas is greater than 2 times, divide two subscriber equipmenies in these two equipment management entity can not carry out D2D communication, also can not carry out D2D with same subscriber equipment communicates by letter, can not there is a subscriber equipment, the D2D communication distance that is simultaneously greater than 2 times with the minimum range of two equipment management entity overlay areas respectively, divide two subscriber equipmenies in these two equipment management entity to carry out D2D communication, be D2D communication distance equipment management entity ID multiplexing that the minimum range of overlay area is greater than 2 times, can not cause D2D communication contention aware, and multiplexing by equipment management entity ID, realized the multiplexing of subscriber equipment D2D communication identifier, thereby reduced total user ID number of user D2D communication, reduced for representing the bit number of D2D communication identifier, reduced transmitting redundancy.

For example, referring to Fig. 4, a respectively corresponding region, each equipment management entity overlay area, comprises 9 regions altogether, and first equipment management entity A selects 0 as its device id, then its selection is broadcast to neighbor device management entity B, E, G; Next equipment management entity B selects to be different from the device id of A, and then B is broadcast to its neighbours A, C, E by its selection; Next C can select the device id different from B, according to predetermined multiplex strategy, the D2D communication distance that is greater than 2 times due to the minimum range of the overlay area of equipment management entity C and the overlay area of equipment management entity A, therefore the ID that equipment management entity C can multiplexing equipment management entity A, selects 0 as its device id; Same, equipment management entity D selects and the multiplexing identical ID of equipment management entity B; The ID that equipment management entity E can not select its neighbours A, B, C, D to adopt, therefore equipment management entity E selects 2 as its device id; Equipment management entity F can not select and its neighbor device management entity D, device id that E is identical, and the D2D communication distance that the minimum range of the overlay area of the overlay area equipment management entity F of equipment management entity A is greater than 2 times, equipment management entity F and equipment management entity A share same device id; Equipment management entity G can not select its neighbor device management entity A, E, F ID used, and the D2D communication distance that the minimum range of the overlay area of the overlay area of equipment management entity B and equipment management entity G is less than 2 times, therefore equipment management entity G can not distribute multiplexing identical device ID with equipment management entity B, therefore equipment management entity G selects ID3, the rest may be inferred, distributes successively the ID of H, I according to identical multiplex strategy.In Fig. 4,9 regions, have adopted 4 different ID values altogether, only need 2 bits to represent.Preferably, in LTE, generally, the overlay area of an equipment management entity is a TA region, adjacent equipment management entity is distributed different ID, the multiplexing same ID of non-conterminous equipment management entity, the maximum of equipment management entity ID can be taken as the maximum of neighbours' number of equipment management entity.Exemplary, in LTE grid, 8 different equipment management entity ID are set multiplexing, equipment management entity ID can represent with 3 bits (bits).

Exemplary, the interim ID of subscriber equipment is distributed by the equipment management entity under it, unique distribution in the equipment management entity overlay area of the interim ID of subscriber equipment under it, do not have two subscriber equipmenies in same equipment management entity overlay area and there is the interim ID of identical subscriber equipment, but the present invention does not limit for the interim ID quantity of user that is a user equipment allocation in a management entity overlay area, be same equipment, can there is an above interim ID of subscriber equipment.

Exemplary, each equipment management entity is the interim ID of each subscriber equipment independent allocation subscriber equipment in its overlay area, the interim ID of subscriber equipment belonging between different equipment management entity can be identical, can greatly reduce the quantity of the interim ID of subscriber equipment like this, and then reduce transmitting redundancy, and the interim ID that belongs to the subscriber equipment of identical equipment management entity is different, while carrying out D2D communication between two subscriber equipmenies of the equipment management entity that guarantees like this to belong to identical, can not there is communication contention aware.

For example, in LTE system, when the user in the overlay area of equipment management entity (TA management entity) represents with 21bits, the number of users that can support is 2,21=,209 ten thousand, because equipment management entity ID is 3bits, like this, the D2D communication identifier size of each subscriber equipment is 3+21=24bits, much smaller than 15 decimal numeral international mobile subscriber identitys (the International Mobile Subscriber Identification Number using in the device hardware MAC Address of 48bits used in WLAN standard agreement 802.11 and cellular system, be called for short IMSI) number.The certain renewable interim ID of number of users bit number used along with active service.

303: equipment management entity will send to described subscriber equipment for the D2D communication identifier of described user equipment allocation;

Exemplary, equipment management entity can directly be issued subscriber equipment using the D2D communication identifier that comprises equipment management entity ID and the interim ID of subscriber equipment distributing as a message; Or equipment management entity is issued subscriber equipment by equipment management entity ID and the interim ID of subscriber equipment respectively.For example, in LTE, equipment management entity is issued MME using the distributed D2D communication identifier that comprises equipment management entity ID and the interim ID of subscriber equipment as a message, by MME, issues subscriber equipment; Or the ID of the equipment management entity under MME broadcasts in the broadcast of MME, equipment management entity is the interim ID of user equipment allocation subscriber equipment, and the interim ID of subscriber equipment is issued to MME as a message, by MME, the interim ID of subscriber equipment is issued to subscriber equipment.

Further, embodiment mono-can also comprise,

304: equipment management entity receives the D2D communication identifier update request that first user equipment sends;

Exemplary, in LTE system, subscriber equipment periodically sends position updating request to the MME under it, for the subscriber equipment that has started D2D business, default thinks that, while receiving the position updating request of the subscriber equipment that has started D2D business, equipment management entity need to be upgraded D2D communication identifier for subscriber equipment.

305: if determine that according to the D2D communication identifier update request of described subscriber equipment described subscriber equipment changes the equipment management entity overlay area under described subscriber equipment, described equipment management entity is that described subscriber equipment is redistributed D2D communication identifier.

Exemplary, equipment management entity receives the position updating request that subscriber equipment sends, can judge that this subscriber equipment is still in this equipment management entity overlay area, not for this subscriber equipment is redistributed D2D communication identifier, and this subscriber equipment still uses original D2D communication identifier to carry out D2D communication.If judge, the service equipment management entity of this subscriber equipment changes, and, in the overlay area of subscriber equipment in new equipment management entity, new equipment management entity is the D2D communication identifier that user equipment allocation is new.

Embodiment bis-:

The present embodiment still be take LTE and is described as example, its principle and implementation method are identical with embodiment mono-, just select equipment management entity to be configured on base station (or community), be that equipment management entity is as a functional entity of base station (or community), and the overlay area of the base station (or community) that the overlay area of each equipment management entity is corresponding with it is identical, also have the method for predefined equipment management entity ID different, only different piece is elaborated below.

In LTE system, while selecting equipment management entity to be configured on base station, the physical layer identifications Physical Cell ID of base station that can be corresponding according to equipment management entity (or community) determines equipment management entity ID.The D2D communication identifier of subscriber equipment is: the interim ID of the physical layer identifications+subscriber equipment of base station (or community).

For example, the equipment management entity ID of each base station (or community) is the physical layer identifications of its corresponding base station, because the physical layer identifications of base station is no more than 504, so equipment management entity ID only needs 9bits just can represent, and user device quantity in each base station is no more than 2 ¹⁵=32768, can represent with 15bit, the D2D communication identifier of subscriber equipment is total to 9+15=24bits.Or, the interim ID of subscriber equipment adopts Radio Network Temporary Identifier (the Radio Network Temporary Identifier of the 16bits that base station (or community) is user equipment allocation, be called for short RNTI), now, the D2D communication identifier of subscriber equipment is 9+16=25bits altogether.Or, in order to make the integral multiple that the bit number of the D2D communication identifier of subscriber equipment is 8, can expand again some bits, the extended bit that for example the interim ID of subscriber equipment is 7bits is added the RNTI of 16bits, now, the D2D communication identifier of subscriber equipment is total to 9+7+16=32bits.

Further, when there is base station (or community) selection, base station (or community) gravity treatment or base station (or community) switching, the equipment management entity corresponding by new base station (or community) is the D2D communication identifier that user equipment allocation is new.

The method that the device identification that the embodiment of the present invention provides distributes, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, wherein, equipment management entity is configured on base station (or community), and determine equipment management entity ID by the physical layer identifications of base station (or community), because having adjacent base station (or community), the distribution of the physical layer identifications of base station (or community) there is different physical layer identifications, the characteristic of the multiplexing same physical layer sign in non-conterminous base station (or community), thereby both reduced the bit number of subscriber equipment D2D communication identifier, reduced transmitting redundancy, also avoided the conflict of D2D communication identifier simultaneously.Overcome in prior art to be the less D2D communication identifier of user equipment allocation bit number in the situation that of contention-free, makes to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

Embodiment tri-:

The present embodiment be take cellular system and is described as example, its implementation and principle are identical with embodiment mono-, just equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.The present embodiment only describes different piece.

The two-stage equipment management entity that the present embodiment be take in a cellular system describes as example.Referring to Fig. 5, at region A, region B, region X etc., an equipment management entity is respectively set, and be first order equipment management entity, can be called equipment management entity A, equipment management entity B, equipment management entity X, the overlay area of first order equipment management entity can be a TA region, for LTE, first order equipment management entity can be configured to a functional entity in MME, at region A, region B, in the overlay area of the first order equipment management entity such as region X, respectively be provided with some second level equipment management entity, for example, in the A of region, comprise community A0, community A1, community A2, community A3, community A4, community A5, community A6, an equipment management entity is wherein set in each community, and be second level equipment management entity, can be called equipment management entity A0 etc., for example the overlay area of second level management entity is the overlay area of a cellular cell or the overlay area of a cellular basestation, second level equipment management entity can be configured to the functional entity in community or base station.

Wherein, the equal continuous distribution in the overlay area of every one-level equipment management entity, for the equipment management entity ID of the second level, is unique in the overlay area of the first order equipment management entity under it.And be unique in the equipment management entity overlay area, the second level of the interim ID of subscriber equipment under this subscriber equipment.

In the present embodiment, D2D communication identifier can be comprised of the interim ID of first order equipment management entity ID+ second level equipment management entity ID+ subscriber equipment, as long as above-mentioned any one difference of three parts can correctly be distinguished.

If carry out D2D communication service between the subscriber equipment B01 in the subscriber equipment A01He community B0 in the A0 of community, the D2D communication identifier of subscriber equipment A01 is: the interim ID of the ID+ subscriber equipment A01 of the ID+ equipment management entity A0 of equipment management entity A, the D2D communication identifier of subscriber equipment B01 is: the interim ID of the ID+ subscriber equipment B01 of the ID+ equipment management entity B0 of equipment management entity B, when the ID of equipment management entity A and equipment management entity B is different, even the ID of the ID of equipment management entity A0 and equipment management entity B0, the interim ID of subscriber equipment A01 and subscriber equipment B01 is identical respectively, still can distinguish the D2D communication identifier of subscriber equipment A01 and subscriber equipment B01, contention-free.

Preferably, for first order equipment management entity or second level equipment management entity, when its overlay area is greater than the D2D communication distance of 2 times, this grade of non-conterminous equipment management entity ID can be multiplexing.

The second level equipment management entity of take below describes as example, when equipment control real overlay area in the second level is greater than the D2D communication distance of 2 times, only have adjacent minizone can carry out D2D communication, so, the equipment management entity ID of non-conterminous community can be multiplexing, but the equipment management entity ID of adjacent community cannot be multiplexing.For example, in the A of region, comprise Qi Ge community: community A0, community A1, community A2, community A3, community A4, community A5, community A6, wherein, A1 is adjacent for A0Yu community, community, so the equipment management entity ID distributing is different, A3 is non-conterminous for A1Yu community, community, so can distribute identical equipment management entity ID.The concrete multiplexing rule of non-conterminous equipment management entity ID should be determined as long as guarantee that adjacent equipment management entity ID is different according to the concrete distribution situation of equipment management entity.

For example, in cellular system, being provided with 3 different equipment management entity ID can be multiplexing, and equipment management entity ID can represent with 2bits, such as just going out all devices management entity ID by spacing identification with binary code 00,01,10.

Embodiment tetra-:

The implementation method of the present embodiment and principle are identical with embodiment mono-, and the mode that equipment management entity is just set is different, and the present embodiment only describes different piece.

In the present embodiment, according to administrative region, equipment management entity is set.

Exemplary, administrative region can be actual Administration partition region, such as the Haidian District of Beijing, Chaoyang District etc., these are one-level administrative region, further, Haidian District can also be divided into four secondary administrative regions, for example region, Shangdi, region, Qinghe, region, Zhong Guan-cun and region, Fragrance Hill.

In the present embodiment, D2D communication identifier can be comprised of the interim ID of equipment management entity ID+ subscriber equipment, wherein, can also multilevel device management entity ID be set according to multistage administrative region, as long as the interim ID of any one-level equipment management entity ID or subscriber equipment is different, can correctly distinguish.

Preferably, for administrative region corresponding to every one-level equipment management entity, when its overlay area is greater than the D2D communication distance of 2 times, this grade of non-conterminous equipment management entity ID can be multiplexing.

On the other hand, the embodiment of the present invention provides a kind of device identification assigned unit, can realize the customer equipment identification distribution method described in Fig. 1, and this device identification assigned unit can be configured in equipment management entity 60, referring to Fig. 6, this equipment management entity 60 can comprise:

Receiving element 601, for receiving the notice of the end-to-end D2D communication service of first user device start, and by the notification transmission of first user device start D2D communication service to allocation units 602;

Exemplary, the equipment management entity 60 that the embodiment of the present invention provides can be applied to multiple communication network, Generation Mobile Telecommunication System technology (The Second Generation Mobile Communication Technology for example, be called for short 2G), 3G (Third Generation) Moblie technology (The Third Generation Mobile Communication Technology, be called for short 3G), Long-Term Evolution (Long Term Evolution is called for short LTE) network.

Exemplary, equipment management entity 60 can be independent hardware or software, also can be a part for other equipment, such as being third generation partner program (The Third Generation Partnership Project, abbreviation 3GPP) tracing area (the Tracking Area in, be called for short TA) management entity, master station in 2G (Main Control Station, be called for short MSC) or VLR Visitor Location Register (Visitor Location Register, be called for short VLR), serving GPRS support node in 3G (Serving GPRS Support Node, be called for short SGSN), mobile management entity in LTE network (Mobile Management Entity, be called for short MME), attaching position register (Home Location Register, be called for short HLR) or location-server or contiguous service server etc.

Allocation units 602, for receiving the notice of subscriber equipment startup D2D communication service from described receiving element 601 and being described first user devices allocation D2D communication identifier, and will be transferred to transmitting element 603 for the D2D communication identifier of described first user devices allocation, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Exemplary, D2D communication identifier is comprised of the equipment management entity ID presetting and the interim ID two parts of subscriber equipment.

Wherein, to be less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times different for the minimum range of overlay area.

Subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of subscriber equipment, for example, can be by dividing multiplexing realization of the subscriber equipment temporary mark ID between distinct device management entity, therefore, with respect to reducing the bit number of D2D communication identifier for the globally unique ID of each user equipment allocation, thereby can reduce transmitting redundancy.

Exemplary, equipment management entity 60 can be arranged in multistage network, every grade of equipment management entity 60 is arranged in the overlay area of upper level equipment management entity 60, equipment management entity ID comprises at least one-level, every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity 60, and the interim ID of described first user equipment is unique in minimum one-level equipment management entity 60 overlay areas in described multistage network.

Equipment management entity 60 can be carried out classification according to the size of overlay area, wherein the one-level of overlay area minimum is minimum one-level equipment management entity, in the present embodiment, according to overlay area is descending, can be called successively first order equipment management entity, second level equipment management entity, wait the like, accordingly, the equipment management entity ID descending according to overlay area can be called first order equipment management entity ID successively, second level equipment management entity ID, wait the like.Wherein, while equipment management entity 60 being carried out to classification according to the size of overlay area, the selection of overlay area can be determined according to the overlay area of the equipment in above-mentioned each network system, for example, the overlay area of MME in LTE network, also can be according to administrative division, for example, each district of Beijing arranges an equipment management entity, the secondary administrative region that can also manage in each district arranges one-level equipment management entity, for example, can be in four secondary administrative regions of Haidian District, region, Shangdi for example, region, Qinghe, region, Zhong Guan-cun and region, Fragrance Hill respectively arrange an equipment management entity.

The equipment management entity ID of every one-level presets in system, the method that presets is not limit, for example, can according to predefined policy conferring, distribute and obtain by equipment control 60 entities of every one-level, or the upper level equipment management entity by same one-level equipment management entity 60 is distributed and is obtained according to predefined strategy, or the mode that can distribute according to predefined strategy equipment management entity 60 according to other presets, or artificially according to predefined strategy, presets.

Transmitting element 603, for be received as the D2D communication identifier of described first user devices allocation from described allocation units 602, and sends the D2D communication identifier distributing to described first user equipment.

Further, described receiving element 601 also for: receive the D2D communication identifier update request that first user equipment sends;

Allocation units 602 also for: if according to the D2D communication identifier update request of described subscriber equipment determine described subscriber equipment change equipment management entity overlay area under described subscriber equipment described equipment management entity be that described subscriber equipment is redistributed D2D communication identifier.

Further, this equipment management entity also comprises memory cell 604, for storage device management entity ID.

The device identification assigned unit that the embodiment of the present invention provides, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, make the D2D communication identifier of any two subscriber equipmenies that carry out D2D communication different, and it is different to make it possible to carry out from same subscriber equipment the D2D communication identifier of any two subscriber equipmenies that D2D communicates by letter; Both avoid communication contention aware, reduced again transmitting redundancy.Thereby overcome in prior art, can not the in the situation that of contention-free, be the less D2D communication identifier of user equipment allocation bit number, make to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

The embodiment of the present invention provides another kind of equipment management entity 60, can realize the method that the customer equipment identification shown in Fig. 1 distributes, and referring to Fig. 7, this equipment management entity 60, comprising:

Receiver 701, for receiving the notice of the end-to-end D2D communication service of first user device start, and the notification transmission that described subscriber equipment is started to D2D communication service is to processor 702;

Exemplary, this equipment management entity 60 can be independent hardware or software, also can be a part for other equipment, such as being third generation partner program (The Third Generation Partnership Project, abbreviation 3GPP) overlay area (the Tracking Area in, be called for short TA) management entity, master station in 2G (Main Control Station, be called for short MSC) or VLR Visitor Location Register (Visitor Location Register, be called for short VLR), serving GPRS support node in 3G (Serving GPRS Support Node, be called for short SGSN), mobile management entity in LTE network (Mobile Management Entity, be called for short MME), attaching position register (Home Location Register, be called for short HLR) or location-server etc.

Processor 702, for receive the notice of first user device start D2D communication service from described receiver 701, and be described first user devices allocation D2D communication identifier, and will be transferred to transmitter 703 for the D2D communication identifier of described user equipment allocation, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different.

Further, equipment management entity 60 can be arranged in multistage network, every grade of equipment management entity 60 is arranged in the overlay area of upper level equipment management entity 60, equipment management entity ID comprises at least one-level, every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity 60, and the interim ID of described first user equipment is unique in minimum one-level equipment management entity 60 overlay areas in described multistage network.

Equipment management entity 60 can be carried out classification according to the size of overlay area, wherein the one-level of overlay area minimum is minimum one-level equipment management entity, in the present embodiment, according to overlay area is descending, can be called successively first order equipment management entity, second level equipment management entity, wait the like, accordingly, the equipment management entity ID descending according to overlay area can be called first order equipment management entity ID successively, second level management entity ID, wait the like.Wherein, while equipment management entity 60 being carried out to classification according to the size of overlay area, the selection of overlay area can be determined according to the overlay area of the equipment in above-mentioned each network system, the overlay area of MME in LTE network, also can be according to administrative division, for example, each district of Beijing arranges an equipment management entity, the secondary administrative region that can also manage in each district arranges one-level equipment management entity, for example, can be in four secondary administrative regions of Haidian District, region, Shangdi for example, region, Qinghe, region, Zhong Guan-cun and region, Fragrance Hill respectively arrange an equipment management entity.

The equipment management entity ID of every one-level presets in system, the method that presets is not limit, for example, can according to default policy conferring, distribute and obtain by equipment control 60 entities of every one-level, or the upper level equipment management entity by same one-level equipment management entity 60 is distributed and is obtained according to default strategy, or the mode that can distinguish equipment management entity 60 according to other presets, or artificially according to default strategy, preset.

Exemplary, the method of being consulted to distribute by equipment management entity can be: by the first equipment management entity, in optional equipment management entity ID, selected arbitrarily an equipment management entity ID, then by selection result broadcast announcement, give the adjacent equipment management entity of the first equipment management entity ID, adjacent equipment management entity can be selected arbitrarily different from the neighbor device management entity ID formerly distributing by the sequencing of receiving this broadcast announcement in remaining equipment management entity ID, be less than the equipment management entity ID that the equipment management entity ID of 2 times of D2D communication distances is different and be broadcast to neighbouring device management entity separately from the coverage minimum range of formerly distributing, the like complete the distribution of all devices management entity ID.Wherein, the first equipment management entity can be any one equipment management entity.

Transmitter 703, for be received as the D2D communication identifier of described first user devices allocation from described processor 702, and sends the D2D communication identifier distributing to described first user equipment.

Memory 704, for storage device management entity ID.

Further, described receiver 701 also for: receive the D2D communication identifier update request that first user equipment sends;

Processor 702 also for: if according to the D2D communication identifier update request of described subscriber equipment determine described subscriber equipment change equipment management entity overlay area under described subscriber equipment described equipment management entity be that described subscriber equipment is redistributed D2D communication identifier.

The equipment management entity 60 that the embodiment of the present invention provides, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, make the D2D communication identifier of any two subscriber equipmenies that carry out D2D communication different, and it is different to make it possible to carry out from same subscriber equipment the D2D communication identifier of any two subscriber equipmenies that D2D communicates by letter; Both avoid communication contention aware, reduced again transmitting redundancy.Thereby overcome in prior art, can not the in the situation that of contention-free, be the less D2D communication identifier of user equipment allocation bit number, make to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

A kind of subscriber equipment 80 that the embodiment of the present invention provides, can realize the customer equipment identification distribution method shown in Fig. 2, and referring to Fig. 8, this subscriber equipment 80, comprising:

Transmitting element 801, for send the notice that starts end-to-end D2D communication service to equipment management entity, so that described equipment management entity is user equipment allocation D2D communication identifier,

Receiving element 802, the D2D communication identifier distributing for receiving described equipment management entity, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Exemplary, equipment management entity can be arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, equipment management entity ID comprises at least one-level, every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity, when equipment management entity at least comprises two-stage, the interim ID of subscriber equipment is unique in the equipment management entity overlay area under this subscriber equipment.

Communication unit 803, communicates by letter for carrying out D2D according to distributed D2D communication identifier with the second subscriber equipment or described same subscriber equipment.

Exemplary, first user equipment 80 receives the complete D2D communication identifier that comprises equipment management entity ID and the interim ID of subscriber equipment; Or first user equipment 80 receives respectively equipment management entity ID at different levels from different broadcasts, and from issuing the message of subscriber equipment, minimum one-level equipment management entity receives the interim ID of subscriber equipment, first user equipment is again according to received management entity ID and the interim ID of subscriber equipment, obtain voluntarily the D2D communication identifier of subscriber equipment, then according to D2D communication identifier, carry out D2D with the second subscriber equipment or same subscriber equipment and communicate by letter.

The subscriber equipment 80 that the embodiment of the present invention provides, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, make the D2D communication identifier of any two subscriber equipmenies that carry out D2D communication different, and it is different to make it possible to carry out from same subscriber equipment the D2D communication identifier of any two subscriber equipmenies that D2D communicates by letter; Both avoid communication contention aware, reduced again transmitting redundancy.Thereby overcome in prior art, can not the in the situation that of contention-free, be the less D2D communication identifier of user equipment allocation bit number, make to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

On the other hand, the embodiment of the present invention provides another kind of subscriber equipment 80, can realize the method that the customer equipment identification shown in Fig. 2 distributes, and referring to Fig. 9, this subscriber equipment 80 comprises:

Transmitter 901, for send the notice that starts end-to-end D2D communication service to equipment management entity, so that described equipment management entity is first user devices allocation D2D communication identifier;

Receiver 902, the D2D communication identifier distributing for receiving described equipment management entity, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

Processor 903, communicates by letter for carrying out D2D according to distributed D2D communication identifier with the second subscriber equipment or described same subscriber equipment.

On the other hand, the system that the embodiment of the present invention provides a kind of device identification to distribute, referring to Figure 10, comprising:

Customer equipment identification assigned unit described in above-mentioned arbitrary embodiment, or the equipment management entity 60 described in above-mentioned arbitrary embodiment;

And, the subscriber equipment 80 described in above-mentioned arbitrary embodiment.

The device identification distribution system that the embodiment of the present invention provides, for the D2D communication identifier of user equipment allocation comprises default equipment management entity ID and the interim ID two parts of subscriber equipment, make the D2D communication identifier of any two subscriber equipmenies that carry out D2D communication different, and it is different to make it possible to carry out from same subscriber equipment the D2D communication identifier of any two subscriber equipmenies that D2D communicates by letter; Both avoid communication contention aware, reduced again transmitting redundancy.Thereby overcome in prior art, can not the in the situation that of contention-free, be the less D2D communication identifier of user equipment allocation bit number, make to reduce the defect that transmitting redundancy and contention-free can not be taken into account.

One of ordinary skill in the art will appreciate that all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims

1. the method that customer equipment identification distributes, is characterized in that, comprising:

2. the method that customer equipment identification according to claim 1 distributes, is characterized in that, in described method, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

3. the method that customer equipment identification according to claim 1 and 2 distributes, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

4. the method for distributing according to the customer equipment identification described in claim 1-3 any one, is characterized in that, also comprises:

5. the method for distributing according to the customer equipment identification described in claim 1-4 any one, it is characterized in that, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

6. the method that customer equipment identification according to claim 5 distributes, is characterized in that, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

7. the method that customer equipment identification distributes, is characterized in that, comprising:

8. the method that customer equipment identification according to claim 7 distributes, is characterized in that in described method, and it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

9. the method for distributing according to the customer equipment identification described in claim 7 or 8, is characterized in that, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

10. the method that customer equipment identification according to claim 7 distributes, it is characterized in that, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

The method that 11. customer equipment identifications according to claim 10 distribute, is characterized in that, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

12. 1 kinds of customer equipment identification assigned units, is characterized in that, comprising:

Allocation units, for receive the notice of described first user device start D2D communication service from described receiving element, and be described first user devices allocation D2D communication identifier, and will be transferred to transmitting element for the D2D communication identifier of described first user devices allocation, described D2D communication identifier comprises equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

13. customer equipment identification assigned units according to claim 12, it is characterized in that, also comprise memory cell, for storage device management entity ID, wherein, to be less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times different for the minimum range of overlay area.

14. according to the customer equipment identification assigned unit described in claim 12 or 13, it is characterized in that, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

15. customer equipment identification assigned units according to claim 12, is characterized in that, described receiving element also for: receive the D2D communication identifier update request that described first user equipment sends;

16. according to the customer equipment identification assigned unit described in claim 12-15 any one, it is characterized in that, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

17. customer equipment identification assigned units according to claim 16, is characterized in that, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

18. 1 kinds of equipment management entity, is characterized in that, comprising:

Transmitter, for be received as the D2D communication identifier of described first user devices allocation from described processor, and sends the D2D communication identifier distributing to described first user equipment;

Memory, for storage device management entity ID.

19. equipment management entity according to claim 18, is characterized in that, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

20. according to the equipment management entity described in claim 18 or 19, it is characterized in that, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

21. according to the equipment management entity described in claim 18-20 any one, it is characterized in that, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

22. equipment management entity according to claim 21, is characterized in that, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

23. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Receiving element, the D2D communication identifier distributing for receiving described equipment management entity, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in described equipment management entity overlay area, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

24. subscriber equipmenies according to claim 23, is characterized in that, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

25. according to the subscriber equipment described in claim 23 or 24, it is characterized in that, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

26. subscriber equipmenies according to claim 23, it is characterized in that, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

27. subscriber equipmenies according to claim 26, is characterized in that, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

28. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Transmitter, for send the notice that starts end-to-end D2D communication service to equipment management entity, so that described equipment management entity is first user devices allocation D2D communication identifier;

Receiver, the D2D communication identifier distributing for receiving described equipment management entity, described D2D communication identifier comprises default equipment management entity sign ID and subscriber equipment temporary mark ID two parts, wherein, the interim ID of described subscriber equipment is unique in the equipment management entity overlay area under described subscriber equipment, described equipment management entity ID is corresponding with equipment management entity, make described first user equipment and to carry out the D2D communication identifier of the second subscriber equipment that D2D communicates by letter different with described first user equipment, and the D2D communication identifier that makes it possible to carry out from same subscriber equipment described first user equipment that D2D communicates by letter and the 3rd subscriber equipment is different,

29. subscriber equipmenies according to claim 28, is characterized in that, it is different that the minimum range of overlay area is less than or equal to the equipment management entity ID of any two equipment management entity of D2D communication distance of 2 times.

30. according to the subscriber equipment described in claim 28 or 29, it is characterized in that, described subscriber equipment temporary mark ID is shorter than the unique ID in the whole world of described subscriber equipment.

31. subscriber equipmenies according to claim 28, it is characterized in that, described equipment management entity is arranged in multistage network, every grade of equipment management entity is arranged in the overlay area of upper level equipment management entity, described equipment management entity ID comprises at least one-level, and every grade of equipment management entity ID is unique in the overlay area of upper level equipment management entity.

32. subscriber equipmenies according to claim 31, is characterized in that, the interim ID of described subscriber equipment is unique in the minimum one-level equipment management entity overlay area in described multistage network.

33. 1 kinds of systems that device identification distributes, is characterized in that, comprising:

Customer equipment identification assigned unit as described in claim 12-17 any one, or the equipment management entity as described in claim 18-22 any one;

And, the subscriber equipment as described in claim 23-32 any one.