CN104619008B - Device-to-device multicast/broadcast communication processing method, device and user equipment - Google Patents

Device-to-device multicast/broadcast communication processing method, device and user equipment Download PDF

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Publication number
CN104619008B
CN104619008B CN201310535994.2A CN201310535994A CN104619008B CN 104619008 B CN104619008 B CN 104619008B CN 201310535994 A CN201310535994 A CN 201310535994A CN 104619008 B CN104619008 B CN 104619008B
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China
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multicast
broadcast
air interface
interface identifier
resource
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CN104619008A (en
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陈琳
朱进国
黄莹
李大鹏
黄河
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ZTE Corp
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ZTE Corp
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Priority to CN201310535994.2A priority Critical patent/CN104619008B/en
Priority to PCT/CN2014/078347 priority patent/WO2015062260A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a kind of device-to-device D2D multicast/broadcast communication processing method, device and user equipmenies, this method comprises: obtaining the air interface identifier for identifying the communication of D2D multicast/broadcast and/or the resource information of D2D multicast/broadcast communication；D2D multicast/broadcast communication process is carried out in the corresponding resource of resource information according to air interface identifier.Through the invention, it solves in the related technology, there are problems that UE cannot achieve D2D multicast and broadcast communication under covering and part covering scene without covering or have, and then has achieved the effect that make UE going on smoothly D2D multicast and broadcast communication under covering and part covering scene without covering or have.

Description

Device-to-device multicast/broadcast communication processing method, device and user equipment
Technical field
The present invention relates to the communications fields, in particular to a kind of device-to-device D2D multicast/broadcast communication process side Method, device and user equipment.
Background technique
With the development of wireless multimedia service, demand of the people to high data rate and user experience is growing, from And high requirement is proposed to the power system capacity and covering of conventional cellular network.Another aspect public safety, social networks, low coverage Make people are right to desorb nearly persons or things and communicate (Proximity from application scenarios such as data sharing, local advertisings Services, adjacent service) demand gradually increase.Traditional cellular network centered on base station in high data rate and There are apparent limitations in terms of the support of adjacent service, under this requirement background, represent the new side of future communication technologies development To device-to-device (Device-to-Device, referred to as D2D) technology come into being.The application of D2D technology can mitigate The burden of cellular network the battery power consumption for reducing user equipment, improves data rate, and improves the robust of network infrastructure Property, meet the requirement of above-mentioned high data rate traffic and adjacent service well.
However, in the prior art not under public safety scene, in present communications shortage of resources or congestion or D2D broadcast/group broadcast connection setup in the case where network infrastructure paralysis provides the solution of system perfecting, i.e., in correlation In technology, there are UE cannot achieve asking for D2D multicast and broadcast communication under covering and part covering scene without covering or have Topic.
Summary of the invention
The present invention provides a kind of device-to-device D2D multicast/broadcast communication processing method, device and user equipment, with At least solve in the related technology, there are UE without cover or have cannot achieve under covering and part covering scene D2D multicast and The problem of broadcast communication.
According to an aspect of the invention, there is provided a kind of device-to-device D2D multicast/broadcast communication processing method, packet It includes: obtaining the air interface identifier for identifying the communication of D2D multicast/broadcast and/or the resource information of D2D multicast/broadcast communication； D2D multicast/broadcast communication process is carried out in the corresponding resource of the resource information according to the air interface identifier.
Preferably, the communication of D2D multicast/broadcast is carried out in the corresponding resource of the resource information according to the air interface identifier Processing includes: to send D2D multicast/broadcast communication data in the corresponding resource of the resource information according to the air interface identifier Packet；And/or D2D multicast/broadcast communication data is received in the corresponding resource of the resource information according to the air interface identifier Packet.
Preferably, the air interface identifier obtained for identifying the communication of D2D multicast/broadcast includes at least one of: from D2D application server obtains the air interface identifier；According to the first pre-defined rule, by the way that D2D multicast/broadcast application layer identification is reflected The mode for being mapped to air interface identifier obtains the air interface identifier；According to the second pre-defined rule, by by D2D multicast/broadcast IP address The mode for being mapped to air interface identifier obtains the air interface identifier；The air interface identifier that acquisition system is defaulted in advance；According to D2D group Broadcast/broadcasted application layer identification generation the air interface identifier；The air interface identifier is obtained from adjacent node, wherein the adjacent segments Point periodic broadcast includes the message of the air interface identifier；The air interface identifier is obtained from central node, wherein the central nodule Point is for controlling D2D multicast/broadcast communication.
Preferably, obtaining the air interface identifier from the central node includes: to send to the central node comprising D2D group Broadcast/D2D multicast/broadcast the communication request of broadcasted application layer identification；The central node is received according to the D2D multicast/broadcast The air interface identifier of communication request distribution.
Preferably, obtaining the air interface identifier from the central node includes: to receive the message comprising the air interface identifier, The message is sent by way of periodic broadcast by the central node.
Preferably, obtaining for the resource information of D2D multicast/broadcast communication includes at least one of: from D2D application server obtains the resource information；Obtain the resource information of system default；Institute is obtained by the way of competition State resource information；The resource information is obtained from adjacent node, wherein the adjacent node periodic broadcast includes the resource The message of information；The resource information is obtained from central node, wherein the central node is used for the D2D multicast/broadcast Communication is controlled.
Preferably, obtaining the resource information from the central node includes: to receive the message comprising the resource information, The message is sent by way of periodic broadcast by the central node.
Preferably, from the central node obtain the resource information include: to the central node send D2D multicast/ Broadcast communication request；Receive the resource for the resource that the central node is distributed according to the D2D multicast/broadcast communication request Information.
Preferably, the multicast/broadcast communication request includes at least one of: D2D multicast/broadcast application layer mark Knowledge, D2D multicast/broadcast IP address, multicast/broadcast communication instruction, D2D multicast/broadcast priority, one or more multicasts/wide Broadcast communication traffic streams service quality QoS information.
It preferably, include one or more multicast/broadcast communication traffic streams Service Qualities in the multicast/broadcast communication request In the case where measuring QoS information, the institute for the resource that the central node is distributed according to the D2D multicast/broadcast communication request is received Stating resource information includes: the multicast/broadcast communication acknowledgement message for receiving the central node and sending, wherein the central node The one or more of multicast/broadcast communication traffic streams service quality QoSs letter for including according to the multicast/broadcast communication request Breath carry out admission control, determine receive multicast/broadcast communication traffic streams, the multicast/broadcast communication acknowledgement message include with It is at least one lower: the resource information of the resource of the central node distribution, receiving the multicast/broadcast communication service Stream.
Preferably, the resource information includes at least one of: the frequency point information of multicast/broadcast communication, multicast/wide Broadcast sub-frame offset information, group that the band resource information of communication, the frame offset information of multicast/broadcast communication, multicast/broadcast communicate Broadcast/the sub-frame mode information of broadcast communication, the gap information of multicast/broadcast communication, multicast/broadcast communication resource block information, Multicast/broadcast communication resource repetition period information, the D2D multicast/broadcast air interface identifier corresponding with the resource information, Send the identification information of the user equipment of D2D multicast/broadcast communication data packet.
Preferably, the resource allocation information of the corresponding resource of the resource information includes at least one of: resource bearing Mark, media access control MAC configuration information, wireless spread-spectrum technology RLC configuration information, Packet Data Convergence Protocol PDCP configuration Information, logic channel configuration information of data radio bearer.
Preferably, the D2D multicast/broadcast is sent in the corresponding resource of the resource information according to the air interface identifier Communication data packet includes: that transmission carries D2D multicast/broadcast air interface identifier in the resource and/or D2D multicast/broadcast refers to The D2D multicast/broadcast communication data packet shown.
Preferably, it is sent in the resource at least one in the following manner and carries the D2D multicast/broadcast and eat dishes without rice or wine Mark and/or the D2D multicast/broadcast instruction the D2D multicast/broadcast communication data packet: by the D2D multicast/ It is taken in the media access control MAC of broadcast communication data packet/wireless spread-spectrum technology RLC/ Packet Data Convergence Protocol PDCP subheader With the mode that the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast indicate, sends and take in the resource The D2D multicast/broadcast indicated with the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast communicates number According to packet；By using the D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast to the D2D multicast/broadcast Communication resource distribution controls information and/or data packet carries out scrambled mode, sends in the resource and carries the D2D group Broadcast/broadcast air interface identifier and/or the D2D multicast/broadcast communication data packet of D2D multicast/broadcast instruction；Pass through transmission The resource location that the D2D multicast/broadcast communication data packet the uses implicit carrying D2D multicast/broadcast air interface identifier and/ Or the mode of the D2D multicast/broadcast instruction, it is sent in the resource and carries the D2D multicast/broadcast air interface identifier And/or the D2D multicast/broadcast communication data packet of D2D multicast/broadcast instruction, wherein send the D2D multicast/wide Broadcast the resource location that communication data packet uses correspond to the D2D multicast/broadcast air interface identifier and/or the D2D multicast/ Broadcast instruction.
Preferably, the D2D multicast/broadcast is received in the corresponding resource of the resource information according to the air interface identifier Communication data packet includes: to judge whether the recipient of the D2D multicast/broadcast communication data packet belongs to according to the air interface identifier The corresponding multicast/broadcast communication set of the air interface identifier；In the case where the judgment result is yes, logical to the D2D multicast/broadcast Letter data packet carries out dissection process, and the data packet after parsing is sent to high level；And/or the situation in judging result being no Under, abandon the D2D multicast/broadcast communication data packet.
According to another aspect of the present invention, a kind of device-to-device D2D multicast/broadcast communication processing apparatus is provided, is wrapped Include: obtain module, for obtains for identify D2D multicast/broadcast communication air interface identifier and/or the D2D multicast/broadcast lead to The resource information of letter；Processing module, for carrying out D2D group in the corresponding resource of the resource information according to the air interface identifier Broadcast/broadcast communication processing.
Preferably, the processing module includes: transmission unit, is used for according to the air interface identifier in the resource information pair D2D multicast/broadcast communication data packet is sent in the resource answered；And/or receiving unit, it is used for according to the air interface identifier in institute State reception D2D multicast/broadcast communication data packet in the corresponding resource of resource information.
Preferably, the acquisition module includes at least one of: first acquisition unit, is used for from D2D application server Obtain the air interface identifier；Second acquisition unit, for according to the first pre-defined rule, by by D2D multicast/broadcast application layer mark The mode that knowledge is mapped to air interface identifier obtains the air interface identifier；Third acquiring unit, for passing through according to the second pre-defined rule The mode that D2D multicast/broadcast IP address is mapped to air interface identifier is obtained into the air interface identifier；4th acquiring unit, for obtaining Take the air interface identifier that system is defaulted in advance；Generation unit, for according to the generation of D2D multicast/broadcast application layer identification Air interface identifier；5th acquiring unit, for obtaining the air interface identifier from adjacent node, wherein the adjacent node is periodical Broadcast includes the message of the air interface identifier；6th acquiring unit, for obtaining the air interface identifier from central node, wherein The central node is used to control D2D multicast/broadcast communication.
Preferably, the 5th acquiring unit includes: the first transmission sub-unit, for including to central node transmission The D2D multicast/broadcast communication request of D2D multicast/broadcast application layer identification；First receiving subelement, for receiving the center The air interface identifier that node is distributed according to the D2D multicast/broadcast communication request.
Preferably, the acquisition module includes at least one of: the 7th acquiring unit, is used for from D2D application server Obtain the resource information；8th acquiring unit, for obtaining the resource information of system default；9th acquiring unit is used In using competition by the way of obtain the resource information；Tenth acquiring unit, for obtaining the resource information from adjacent node, Wherein, the adjacent node periodic broadcast includes the message of the resource information；11st acquiring unit is used for from central nodule Point obtains the resource information, wherein the central node is used to control D2D multicast/broadcast communication.
Preferably, the 11st acquiring unit includes: the second transmission sub-unit, for sending to the central node D2D multicast/broadcast communication request；Second receiving subelement, for receiving the central node according to the D2D multicast/broadcast The resource information of the resource of communication request distribution.
Preferably, the transmission unit includes: third transmission sub-unit, carries D2D for sending in the resource Multicast/broadcast air interface identifier and/or the D2D multicast/broadcast communication data packet of D2D multicast/broadcast instruction.
Preferably, the third transmission sub-unit includes at least one of: first sends time subelement, for by The media access control MAC of the D2D multicast/broadcast communication data packet/wireless spread-spectrum technology RLC/ Packet Data Convergence Protocol The mode that the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast instruction are carried in PDCP subheader, described The D2D group for carrying the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast instruction is sent in resource Broadcast/broadcast communication data packet；Second sends time subelement, for by using the D2D multicast/broadcast air interface identifier and/or The instruction of D2D multicast/broadcast controls information to the D2D multicast/broadcast communication resource distribution and/or data packet carries out scrambled side Formula, in the resource send carry the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast instruction The D2D multicast/broadcast communication data packet；Third sends time subelement, for by sending the D2D multicast/broadcast communication The resource location that data packet the uses implicit carrying D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast refer to The mode shown sends in the resource and carries the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast The D2D multicast/broadcast communication data packet indicated, wherein send the institute that the D2D multicast/broadcast communication data packet uses Resource location is stated to indicate corresponding to the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast.
Preferably, the receiving unit includes: judgment sub-unit, for judging the D2D group according to the air interface identifier Broadcast/whether the recipient of broadcast communication data packet belong to the corresponding multicast/broadcast communication set of the air interface identifier；Parsing is single Member, for the judging result of the judgment sub-unit be in the case where, to the D2D multicast/broadcast communication data packet into Row dissection process, and the data packet after parsing is sent to high level；And/or subelement is abandoned, in the judgment sub-unit Judging result be it is no in the case where, abandon the D2D multicast/broadcast communication data packet.
According to another aspect of the invention, a kind of user equipment is provided, including any one of described in any of the above embodiments The D2D multicast/broadcast communication processing apparatus.
Through the invention, using the air interface identifier and/or the D2D group obtained for identifying the communication of D2D multicast/broadcast Broadcast/the resource information of broadcast communication；Carried out in the corresponding resource of the resource information according to the air interface identifier D2D multicast/ Broadcast communication processing solves in the related technology, and there are UE without cover or have can not be real under covering and part covering scene The problem of existing D2D multicast and broadcast communication, and then reached and made UE without under covering or having covering and part covering scene Go on smoothly the effect of D2D multicast and broadcast communication.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of device-to-device D2D multicast/broadcast communication processing method according to an embodiment of the present invention；
Fig. 2 is the structural block diagram of device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention；
Fig. 3 is processing module 24 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention Preferred structure block diagram；
Fig. 4 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention Preferred structure block diagram one；
Fig. 5 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention In the 5th acquiring unit 46 preferred structure block diagram；
Fig. 6 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention Preferred structure block diagram two；
Fig. 7 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention In the 11st acquiring unit 65 preferred structure block diagram；
Fig. 8 is processing module 24 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention The preferred structure block diagram of middle transmission unit 32；
Fig. 9 is processing module 24 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention The preferred structure block diagram of third transmission sub-unit 82 in middle transmission unit 32；
Figure 10 is processing module in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention The preferred structure block diagram of receiving unit 34 in 24；
Figure 11 is the structural block diagram of user equipment according to an embodiment of the present invention；
Figure 12 is equipment direct communication system communication pattern schematic diagram according to an embodiment of the present invention；
Figure 13 is the schematic diagram that D2D multicast/broadcast according to an embodiment of the present invention is directed to different covering scenes；
Figure 14 be according to the present invention example 1 without covering scene D2D cast communication flow chart；
Figure 15 be according to the present invention example 2 without covering scene D2D cast communication flow chart；
Figure 16 be according to the present invention example 3 without covering scene D2D cast communication flow chart；
Figure 17 be according to the present invention example 4 without covering scene D2D cast communication flow chart；
Figure 18 be according to the present invention example 5 without covering scene D2D broadcast communication flow chart；
Figure 19 is that example 6 has a covering scene D2D cast communication flow chart according to the present invention；
Figure 20 is that example 7 has a covering scene D2D cast communication flow chart according to the present invention；
Figure 21 is that example 8 has a covering scene D2D cast communication flow chart according to the present invention；
Figure 22 is that example 9 has a covering scene D2D cast communication flow chart according to the present invention；
Figure 23 is that example 10 has a covering scene D2D broadcast communication flow chart according to the present invention；
Figure 24 is that example 11 has a covering scene D2D broadcast communication flow chart according to the present invention；
Figure 25 is the part covering scene D2D cast communication flow chart of example 12 according to the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
A kind of device-to-device D2D multicast/broadcast communication processing method is provided in the present embodiment, and Fig. 1 is according to this The flow chart of the device-to-device D2D multicast/broadcast communication processing method of inventive embodiments, as shown in Figure 1, the process includes such as Lower step:
Step S102 obtains air interface identifier and/or the communication of D2D multicast/broadcast for identifying the communication of D2D multicast/broadcast Resource information；
Step S104 carries out D2D multicast/broadcast communication process according to air interface identifier in the corresponding resource of resource information.
Through the above steps, according to the air interface identifier of D2D multicast/broadcast communication and/or the money of D2D multicast/broadcast communication Source information carries out D2D multicast/broadcast communication process, solves in the related technology, there are UE without covering or have covering and portion The problem of cannot achieve D2D multicast and broadcast communication under point covering scene, and then reached and made UE without covering or have covering And the effect of D2D multicast and broadcast communication is gone on smoothly under the covering scene of part.
Wherein, D2D multicast/broadcast communication process is carried out in the corresponding resource of resource information according to air interface identifier can wrap It includes: sending D2D multicast/broadcast communication data packet in the corresponding resource of resource information according to air interface identifier；And/or according to empty Mouth mark receives D2D multicast/broadcast communication data packet in the corresponding resource of resource information.
Obtain air interface identifier for identifying the communication of D2D multicast/broadcast can there are many mode, for example, can use with At least one under type: air interface identifier is obtained from D2D application server；According to the first pre-defined rule, by by D2D multicast/wide The mode for broadcasting application layer identity map to air interface identifier obtains air interface identifier；According to the second pre-defined rule, by by D2D multicast/ The mode that Broadcast IP address is mapped to air interface identifier obtains air interface identifier；The air interface identifier that acquisition system is defaulted in advance；According to D2D Multicast/broadcast application layer identification generates air interface identifier；Air interface identifier is obtained from adjacent node, wherein the adjacent node is periodical Broadcast includes the message of air interface identifier；Air interface identifier is obtained from central node, wherein central node is used for D2D multicast/broadcast Communication is controlled.Wherein, following processing mode can be used by obtaining air interface identifier from central node: being sent and wrapped to central node The D2D multicast/broadcast communication request of the application layer identification of multicast/broadcast containing D2D；It is logical according to D2D multicast/broadcast to receive central node The air interface identifier of letter request distribution.More preferably, it can be obtained by way of proprietary signaling and/or periodic broadcast from central node Take air interface identifier, it may for example comprise receive air interface identifier of the central node according to the distribution of D2D multicast/broadcast communication request.
Obtain for D2D multicast/broadcast communication resource information can also use various ways, for example, can use with At least one under type: resource information is obtained from D2D application server；Obtain the resource information of system default；Using competition Mode obtains resource information；Resource information is obtained from adjacent node, wherein the adjacent node periodic broadcast includes resource information Message；Resource information is obtained from central node, wherein the central node is used to control the communication of D2D multicast/broadcast. Wherein, following processing mode can be used by obtaining resource information from central node: and by above-mentioned dedicated signaling and/or The mode of periodic broadcast obtains the resource information from central node, for example, can send D2D multicast/broadcast to central node Communication request；Receive resource information of the central node according to the resource of D2D multicast/broadcast communication request distribution.
Wherein, which can wrap containing at least one of: D2D multicast/broadcast application layer mark Knowledge, D2D multicast/broadcast IP address, multicast/broadcast communication instruction, D2D multicast/broadcast priority, one or more multicasts/wide Broadcast communication traffic streams service quality QoS information.
It preferably, include one or more multicast/broadcast communication service streaming qualities in multicast/broadcast communication request In the case where QoS information, receiving central node can be with according to the resource information of the resource of D2D multicast/broadcast communication request distribution Using following processing: receiving the multicast/broadcast communication acknowledgement message that central node is sent, wherein central node is according to multicast/wide It broadcasts one or more multicast/broadcast communication traffic streams service quality QoS information that communication request includes and carries out admission control, determine The multicast/broadcast communication traffic streams of receiving, multicast/broadcast communication acknowledgement message includes at least one of: central node distribution Resource resource information, the multicast/broadcast communication traffic streams of receiving.
It should be noted that above-mentioned resource information may include much information, for example, can wrap containing it is following at least it One: the vertical shift that the frequency point information of multicast/broadcast communication, the band resource information of multicast/broadcast communication, multicast/broadcast communicate Information, the sub-frame offset information of multicast/broadcast communication, the sub-frame mode information of multicast/broadcast communication, multicast/broadcast communicate The resource repetition period information and resource information that gap information, the resource block information of multicast/broadcast communication, multicast/broadcast communicate The identification information of the user equipment of corresponding D2D multicast/broadcast air interface identifier, transmission D2D multicast and broadcast communication data packet.Its In, the resource allocation information of resource corresponding to the resource information may include at least one of: resource bearing mark, media Access control MAC configuration information, wireless spread-spectrum technology RLC configuration information, Packet Data Convergence Protocol PDCP configuration information, logic Channel configuration information.
It includes: to provide that D2D multicast/broadcast communication data packet is sent in the corresponding resource of resource information according to air interface identifier The D2D multicast/broadcast communication data for carrying D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast is sent on source Packet.Preferably, can be sent in resource at least one in the following manner carry D2D multicast/broadcast air interface identifier and/or The D2D multicast/broadcast communication data packet of D2D multicast/broadcast instruction: by being connect in the media of D2D multicast/broadcast communication data packet Enter to control carrying D2D multicast/broadcast air interface identifier in MAC/ wireless spread-spectrum technology RLC/ Packet Data Convergence Protocol PDCP subheader And/or the mode of D2D multicast/broadcast instruction, it is sent in resource and carries D2D multicast/broadcast air interface identifier and/or D2D group Broadcast/broadcast the D2D multicast/broadcast communication data packet of instruction；By using D2D multicast/broadcast air interface identifier and/or D2D multicast/ Broadcast instruction controls information to D2D multicast/broadcast communication resource distribution and/or data packet carries out scrambled mode, in resource Send the D2D multicast/broadcast communication data packet for carrying D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast； By send the implicit carrying D2D multicast/broadcast air interface identifier of the resource location that uses of D2D multicast/broadcast communication data packet and/ Or the mode of D2D multicast/broadcast instruction, sent in resource carry D2D multicast/broadcast air interface identifier and/or D2D multicast/ Broadcast the D2D multicast/broadcast communication data packet of instruction, wherein send the resource-niche that D2D multicast/broadcast communication data packet uses It sets and is indicated corresponding to D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast.
It includes: foundation that D2D multicast/broadcast communication data packet is received in the corresponding resource of resource information according to air interface identifier Air interface identifier judges whether the recipient of D2D multicast/broadcast communication data packet belongs to the corresponding multicast/broadcast communication of air interface identifier Group；In the case where the judgment result is yes, dissection process is carried out to D2D multicast/broadcast communication data packet, and by the number after parsing High level is sent to according to packet；And/or if the determination result is NO, D2D multicast/broadcast communication data packet is abandoned.
A kind of device-to-device D2D multicast/broadcast communication processing apparatus is additionally provided in the present embodiment, which is used for Realize above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " mould The combination of the software and/or hardware of predetermined function may be implemented in block ".Although device described in following embodiment is preferably with soft Part is realized, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 2 is the structural block diagram of device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention, As shown in Fig. 2, the device includes obtaining module 22 and processing module 24, the device is illustrated below.
Obtain module 22, for obtains for identify D2D multicast/broadcast communication air interface identifier and/or D2D multicast/extensively Broadcast the resource information of communication；Processing module 24 is connected to above-mentioned acquisition module 22, for foundation air interface identifier in resource information pair D2D multicast/broadcast communication process is carried out in the resource answered.
Fig. 3 is processing module 24 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention Preferred structure block diagram, as shown in figure 3, the processing module 24 include transmission unit 32 and/or receiving unit 34, below to the dress It sets and is illustrated.
Transmission unit 32, for sending the communication of D2D multicast/broadcast in the corresponding resource of resource information according to air interface identifier Data packet；Receiving unit 34, for receiving the communication of D2D multicast/broadcast in the corresponding resource of resource information according to air interface identifier Data packet.
Fig. 4 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention Preferred structure block diagram one, as shown in figure 4, the acquisition module 22 include at least one of: first acquisition unit 41, second are obtained Take unit 42, third acquiring unit 43, the 4th acquiring unit 44, generation unit 45, the 5th acquiring unit 46, the 6th acquiring unit 47, the acquisition module 22 is illustrated below.
First acquisition unit 41, for obtaining air interface identifier from D2D application server；Second acquisition unit 42 is used for root According to the first pre-defined rule, air interface identifier is obtained by way of by D2D multicast/broadcast application layer identity map to air interface identifier； Third acquiring unit 43 is used for according to the second pre-defined rule, by the way that D2D multicast/broadcast IP address is mapped to air interface identifier Mode obtains air interface identifier；4th acquiring unit 44, the air interface identifier defaulted in advance for obtaining system；Generation unit 45 is used According to D2D multicast/broadcast application layer identification generation air interface identifier；5th acquiring unit 46, it is empty for being obtained from adjacent node Mouth mark, wherein adjacent node periodic broadcast includes the message of air interface identifier；6th acquiring unit 47 is used for from central nodule Point obtains air interface identifier, wherein central node is used to control the communication of D2D multicast/broadcast.
Fig. 5 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention In the 5th acquiring unit 46 preferred structure block diagram, as shown in figure 5, the 5th acquiring unit 46 include the first transmission sub-unit 52 With the first receiving subelement 54, the 5th acquiring unit 46 is illustrated below.
First transmission sub-unit 52, for sending the D2D group comprising D2D multicast/broadcast application layer identification to central node Broadcast/broadcast communication request；First receiving subelement 54 is connected to above-mentioned first transmission sub-unit 52, for receiving central node Air interface identifier according to the distribution of D2D multicast/broadcast communication request.
Fig. 6 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention Preferred structure block diagram two, as shown in fig. 6, the acquisition module 22 include at least one of: the 7th acquiring unit the 61, the 8th obtains Take unit 62, the 9th acquiring unit 63, the tenth acquiring unit 64, the 11st acquiring unit 65, below to the acquisition module 22 into Row explanation.
7th acquiring unit 61, for obtaining resource information from D2D application server；8th acquiring unit 62, for obtaining Take the resource information of system default；9th acquiring unit 63, for obtaining resource information by the way of competition；Tenth obtains list Member 64, for obtaining resource information from adjacent node, wherein adjacent node periodic broadcast includes the message of resource information；The 11 acquiring units 65, for obtaining resource information from central node, wherein central node is used to communicate D2D multicast/broadcast It is controlled.
Fig. 7 is acquisition module 22 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention In the 11st acquiring unit 65 preferred structure block diagram, as shown in fig. 7, the 11st acquiring unit 65 includes that second to send son single Member 72 and the second receiving subelement 74, are below illustrated the 11st acquiring unit 65.
Second transmission sub-unit 72, for sending D2D multicast/broadcast communication request to central node；Second receives son list Member 74, is connected to above-mentioned second transmission sub-unit 72, distributes for receiving central node according to D2D multicast/broadcast communication request Resource resource information.
Fig. 8 is processing module 24 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention The preferred structure block diagram of middle transmission unit 32, as shown in figure 8, the transmission unit 32 include third transmission sub-unit 82, below it is right The third transmission sub-unit 82 is illustrated.
Third transmission sub-unit 82 carries D2D multicast/broadcast air interface identifier and/or D2D group for sending in resource Broadcast/broadcast the D2D multicast/broadcast communication data packet of instruction.
Fig. 9 is processing module 24 in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention The preferred structure block diagram of third transmission sub-unit 82 in middle transmission unit 32, as shown in figure 9, the third transmission sub-unit 82 includes At least one of: first sends that time subelement 92, second sends time subelement 94, third sends time subelement 96, below it is right The third transmission sub-unit 82 is illustrated.
First sends time subelement 92, for by D2D multicast/broadcast communication data packet media access control MAC/ D2D multicast/broadcast air interface identifier and/or D2D group are carried in wireless spread-spectrum technology RLC/ Packet Data Convergence Protocol PDCP subheader The mode for broadcasting/broadcasting instruction sends in resource and carries D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast D2D multicast/broadcast communication data packet；Second sends time subelement 94, for by using D2D multicast/broadcast air interface identifier And/or the instruction of D2D multicast/broadcast controls information to D2D multicast/broadcast communication resource distribution and/or data packet progress is scrambled Mode sends in resource and carries the D2D multicast of D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast/wide Broadcast communication data packet；Third sends time subelement 96, the resource for being used by sending D2D multicast/broadcast communication data packet The implicit mode for carrying D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast in position, sends in resource and takes The D2D multicast/broadcast communication data packet indicated with D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast, wherein hair Send the D2D resource location that multicast/broadcast communication data packet uses correspond to D2D multicast/broadcast air interface identifier and/or D2D multicast/ Broadcast instruction.
Figure 10 is processing module in device-to-device D2D multicast/broadcast communication processing apparatus according to an embodiment of the present invention The preferred structure block diagram of receiving unit 34 in 24, as shown in figure 8, the receiving unit 34 includes: judgment sub-unit 102, parsing Unit 104 and/or discarding subelement 106, are below illustrated the receiving unit 34.
Judgment sub-unit 102, for according to air interface identifier judge D2D multicast/broadcast communication data packet recipient whether Belong to the corresponding multicast/broadcast communication set of air interface identifier；Parsing subunit 104 is connected to above-mentioned judgment sub-unit 102, is used for In the case where the judging result of judgment sub-unit 102, which is, is, dissection process is carried out to D2D multicast/broadcast communication data packet, and Data packet after parsing is sent to high level；And/or subelement 106 is abandoned, it is connected to above-mentioned judgment sub-unit 102, is used for In the case that the judging result of judgment sub-unit 102 is no, D2D multicast/broadcast communication data packet is abandoned.
Figure 11 is the structural block diagram of user equipment according to an embodiment of the present invention, as shown in figure 11, the user equipment 112 packet Include the D2D multicast/broadcast communication processing apparatus 114 of any of the above-described.
D2D technology can work in authorized spectrum band or unauthorized frequency range, allow multiple user equipmenies for supporting D2D function (i.e. D2D user equipment, D2D User Equipment, D2D UE) is having network infrastructure or without the feelings of network infrastructure / direct communication is directly found under condition.Figure 12 is equipment direct communication system communication pattern schematic diagram according to an embodiment of the present invention, As shown in figure 12, there are mainly three types of the application scenarios of the D2D:
(1) UE1 and UE2 carries out data interaction under the covering of cellular network, and user face data is set without network foundation It applies, such as the mode 1 of Fig. 1；
(2) in weak/UE relay transmission without overlay area, mode 2 as shown in figure 1, the UE4 for allowing signal quality poor is logical Crossing nearby has the UE3 of the network coverage to be communicated with network, and operator can be helped to spread over, improve capacity；
(3) in the case where earthquake or emergency cellular network cisco unity malfunction occurs, allow equipment room directly logical Letter, such as the mode 3, UE5 in Figure 12, control plane and user face all carry out a jump without network infrastructure between UE6 and UE7 Or the data communication of multi-hop.
From the perspective of public safety, public safety network system needs to provide the service such as multimedia for the first response people Means complete task, it is desirable that communication function in having single-point communication and organizing.Specifically, the D2D communication of public safety scene Include such as Types Below: unicast, multicast, broadcast.Unicast refers to one-to-one communication pattern between D2D user equipment, and multicast and wide Broadcasting is the communication pattern one-to-many for D2D user equipment.Unicast communication can regard the special shape of cast communication, such as D2D as It only include two user equipmenies in communication set, D2D cast communication is equivalent to unicast communication at this time.At the same time, public safety field The communicating requirement of scape has very strong robustness, can be in present communications shortage of resources or congestion or network infrastructure paralysis Maximum offer service is be provided in the case where paralysis.Therefore public safety requires D2D communication not only having the network coverage It works under scene, also requires to work under part covering and without network coverage scene.Under no network coverage scene, D2D is used Family equipment can be worked by way of self-organizing, can also be chosen under no overlay environment in some D2D user equipmenies conducts It entreats node (Central Node, referred to as CN), these central nodes provide the function of similar base station.
Figure 13 is the schematic diagram that D2D multicast/broadcast according to an embodiment of the present invention is directed to different covering scenes, such as Figure 13 institute Show, gives the schematic diagram that D2D multicast and broadcast communicates under public safety scene, wherein Figure 13 (a) is under no covering scene Multicast and broadcast communication between D2D user equipment, and Figure 13 (b) is in the case where there is covering scene or without the network coverage but introducing CN Multicast and broadcast communication under scene between D2D user equipment.Here CN can be the eNB under covering scene, be also possible to It is served as under no covering scene by D2D user equipment.Figure 13 (c), which gives, carries out group part D2D user equipment of communication in center Under coverage, and part D2D user equipment not central node covering under scene.
Based on above-mentioned scene, in the present embodiment, UE is provided under a kind of public safety scene without covering or have covering And the D2D broadcast/group broadcast communication establishing method when covering of part, by the D2D broadcast/group broadcast communication establishing method and it is System, user equipment can be in the case where the various scenes such as having the network coverage and covering without the network coverage and subnetwork by simply flowing Journey fast and flexible establishes D2D multicast and broadcast communication, it is ensured that multicast and broadcast communication are gone on smoothly.In addition, the above method It can also be applied to unicast communication, such as the case where broadcast or only one reception user equipment of cast communication.
The D2D multicast and broadcast communication method for building up include: user equipment obtain D2D multicast/broadcast communication eat dishes without rice or wine mark Knowledge and resource information；Using the air interface identifier, transmission/reception D2D multicast/broadcast in above-mentioned resource communicates number to user equipment According to packet.Wherein, the user equipment of above-mentioned meaning includes: the first user equipment for initiating the communication of D2D multicast/broadcast, and is received The second user equipment of D2D multicast/broadcast communication；The second user equipment is related to one or more adjacent with the first user equipment User equipment；Air interface identifier refers to D2D multicast/broadcast communication identifier, and multicast air interface identifier therein refers to can be in air interface identifier institute Some D2D cast communications or specific D2D cast communication group (i.e. scheduled D2D cast communication group), and broadcasting air interface identifier can In air interface identifier D2D broadcast communication.
On the one hand, the air interface identifier information that user equipment obtains the communication of D2D multicast/broadcast can use various ways, example Such as, can obtain at least one in the following ways: user equipment obtains D2D multicast be added/extensively from D2D application server The air interface identifier broadcast；D2D multicast application layer identification is mapped to the air interface identifier of D2D group according to predefined rule by user equipment； User equipment obtains the IP multicast address of D2D group be added from D2D application server, and according to predefined rule by D2D group IP multicast address is mapped to the air interface identifier of D2D group；Before first user equipment initiates D2D cast communication, answered according to D2D multicast The air interface identifier of D2D group is generated with layer identification, and the mapping for periodically broadcasting D2D multicast application layer identification and air interface identifier is closed System, second user equipment receive the mapping of the D2D multicast application layer identification and air interface identifier of the first user equipment periodic broadcast Relationship, to obtain the air interface identifier of D2D group；User equipment obtains the D2D multicast/broadcast communication air interface identifier of default in advance； User equipment obtains D2D multicast/broadcast air interface identifier from central node.Wherein, it should be noted that above-mentioned central node can be with Be base station, or execute the user equipment of Central Control Function, which is not involved in the transmission of multicast/broadcast data, only into The signaling control of the corresponding control plane of row.
Wherein, user equipment can use following relatively simple processing from the air interface identifier that central node obtains D2D group Mode, comprising: the first user equipment sends the D2D group communication request identified comprising D2D application layer group to central node；Central nodule Point receives D2D group communication request, distributes D2D group air interface identifier；Central node will be wrapped by proprietary signaling and/or periodic broadcast The message of the air interface identifier of group containing D2D or D2D group air interface identifier and D2D group application layer identity map information is sent to user equipment； User equipment receives the message comprising D2D group air interface identifier information that central node is sent.
More preferably, user equipment is before the air interface identifier that central node obtains D2D group, further includes: the first user equipment Wish to initiate D2D cast communication.
Wherein, user equipment from central node obtain D2D broadcast air interface identifier can also using it is following it is relatively simple from Reason mode, comprising: the first user equipment sends D2D broadcast communication request to central node；Central node receives D2D broadcast communication Request, distribution D2D broadcast air interface identifier；Central node can will include D2D broadcast sky by proprietary signaling and/or periodic broadcast The message of mouth mark is sent to user equipment；What user equipment received central node transmission includes that D2D broadcasts air interface identifier information Message.
On the other hand, user equipment obtains the resource information of D2D multicast/broadcast communication, can also use a variety of processing sides At least one formula, for example, it is also possible in the following ways: user equipment obtains D2D multicast/broadcast from D2D application server and leads to Believe resource information；The D2D multicast/broadcast communication resource information of user equipment acquisition system default；First user equipment is using competing The mode striven obtains the running time-frequency resource for sending multicast/broadcast communication data packet；User equipment from central node obtain D2D multicast/ The resource information of broadcast communication.
Wherein, user equipment from central node obtain D2D multicast/broadcast communicate resource information can also using below compared with Simply to handle, comprising: the first user equipment sends multicast/broadcast communication request to central node；Central node reception group Broadcast/broadcast communication request message after, be multicast/broadcast allocation of communications interface-free resources, and send include multicast/broadcast interface-free resources The message of information is to user equipment；User equipment receives the message comprising multicast/broadcast interface-free resources information.
More preferably, when the first user equipment sends multicast/broadcast communication request message to central node, the multicast/wide Broadcasting communication request message may include, but are not limited to following field: D2D group mark, and multicast/broadcast communication indicates, D2D group priority, One or more multicast/broadcast communication traffic streams QoS informations；Wherein, D2D group mark can be at least one of: D2D group is answered With layer identification, the D2D group air interface identifier of D2D IP multicast address, system default.
It is multicast/broadcast allocation of communications interface-free resources, concurrently after central node receives multicast/broadcast communication request message When sending the message comprising multicast/broadcast interface-free resources information to user equipment, which can be carried out the following processing: Central node carries out admission control to multicast/broadcast communication request；Central node can be according to multicast/broadcast communication request message packet The multicast/broadcast communication traffic streams QoS information contained determines the multicast/broadcast communication traffic streams received.After this, central nodule It may include: that central node sends multicast/broadcast that point, which sends the message comprising multicast/broadcast interface-free resources information to user equipment, Communication acknowledgement message gives the first user equipment, wherein the multicast/broadcast communication acknowledgement message may include distributing to multicast/broadcast The resource of communication and/or received business stream information.
In addition, can be used when central node sends the message comprising multicast/broadcast interface-free resources information to user equipment Different sending methods sends different resource informations, for example, the central node can be sent out by the way of periodic broadcast Multicast/broadcast is sent to communicate corresponding sub-frame mode information；The central node can include the money of multicast/broadcast communication with broadcast transmission Source information, wherein the multicast/broadcast interface-free resources information may include any combination of following field: multicast/broadcast communication Frequency point, band resource, frame/sub-frame offset, sub-frame mode, time slot, resource block, resource repetition period etc.；Multicast/broadcast communication Resource information include at least one of: corresponding D2D group air interface identifier/D2D broadcasts air interface identifier, the first user equipment Identification information.In addition, the resource information comprising multicast/broadcast communication that central node is sent can also be with periodicity sending.
User equipment is using air interface identifier in transmission in resource/reception D2D multicast/broadcast communication data packet, comprising: the One user equipment sends D2D multicast/broadcast communication data packet in resource, and data packet implicitly or explicitly carries D2D group and eats dishes without rice or wine Mark/D2D broadcast identification；Second user equipment receives D2D multicast packet in resource, is according to the judgement of D2D group air interface identifier Further parsing, further progress MAC/RLC/PDCP dissection process if necessary are simultaneously delivered to high level, otherwise lose no needs Abandon the data packet；Alternatively, second user equipment receives D2D broadcast communication data packet in resource, MAC/RLC/PDCP layers of solution are completed After analysis processing, it is delivered to high level.
First user equipment when sending D2D multicast/broadcast communication data packet in resource, implicitly or explicitly take by data packet Band D2D group air interface identifier/D2D broadcast identification, comprising: the first user equipment is taken in the D2D multicast/broadcast communication data packet of transmission Band at least one of: D2D group air interface identifier/D2D broadcast identification, the instruction of D2D multicast/broadcast.Preferably, can be by following Mode carries the D2D group air interface identifier/D2D broadcast identification: can be in the MAC/RLC/ of D2D multicast/broadcast communication data packet PDCP subheader carries at least one of: D2D group air interface identifier/D2D broadcast identification, D2D multicast/broadcast indication field；It uses D2D group air interface identifier/D2D broadcast identification scrambles the D2D multicast/broadcast communication data packet that the first user equipment is sent； The D2D multicast/broadcast communication data packet that first user equipment is sent eats dishes without rice or wine to mark using the D2D group that corresponds to that central node distributes Knowledge/D2D broadcast identification resource, D2D multicast/broadcast communication data packet are implicit by sending the resource location that uses of data packet Carry D2D group air interface identifier/D2D broadcast identification information.
Second user equipment is before resource receives D2D multicast/broadcast communication data packet, further includes: second user equipment It is interesting to D2D multicast/broadcast is received, and obtain D2D multicast/broadcast air interface identifier and resource information；Second user equipment Resource receive D2D multicast packet, judge whether to need further to parse according to D2D group air interface identifier, if necessary into Row MAC/RLC/PDCP dissection process is simultaneously delivered to high level, otherwise abandons the data packet.It should be noted that if second user Equipment is the member of the corresponding D2D group of D2D group air interface identifier, then second user equipment needs to parse data packet.
For UE under without covering or having covering and part covering scene, D2D multicast and broadcast communication foundation can take user Equipment obtains the air interface identifier and resource information of D2D multicast/broadcast communication, and user equipment is using air interface identifier in resource later Upper transmission/reception D2D multicast/broadcast communication data packet mode is completed.Through the foregoing embodiment and preferred embodiment, user Equipment can have covering, establish D2D multicast by simple process fast and flexible without covering and partially under the scenes such as covering And broadcast communication, it is ensured that multicast and broadcast communication are gone on smoothly.
For three kinds of covering scenes that Figure 13 is provided, corresponding embodiment is introduced separately below.
Embodiment one
The present embodiment provides D2D multicast and broadcast communication establishing method under no covering scene.The embodiment is characterized in not having Central node carries out the distribution of resource coordination and D2D multicast/broadcast air interface identifier, need UE singly complete resource contention with And D2D multicast/broadcast air interface identifier mapping or predefined mode obtain.It is elaborated below by way of example 1 to example 5.
Example 1
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 configuration belong to D2D communication set X, and UE4 belongs to D2D communication set Y.In Officer A, B, C, before D reaches emergency place, know that D2D communication set identifies GID in advance And the wireless resource information for public safety, wherein wireless resource information may include frequency point and band information.It is rescued in arrival After helping place, they are not in network coverage, but UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group. The UE1 of Officer A monitors the radio resource service condition of predistribution, resource is obtained by way of competition, Figure 14 is basis Present example 1 without covering scene D2D cast communication flow chart, as shown in figure 14.Compete UE1 broadcast transmission after resource Cast communication data, transmitted data packet carry the D2D group mark of predistribution in MAC/RLC/PDCP subheader.Optionally, multicast Communication data packet can carry the instruction of D2D cast communication and the air interface identifier information of UE1 in MAC/RLC/PDCP subheader.
UE2, UE3 and the UE4 of Officer B, C, D monitor the public safety radio resource known in advance.Assuming that UE2, UE3, UE4 have listened to data packet transmission, then receive the data packet, the D2D group mark of parsing MAC/RLC/PDCP subheader. UE2 and UE3 judges the member for oneself belonging to the corresponding D2D group of D2D group mark, then UE2 and UE3 further progress MAC/RLC/ PDCP dissection process is simultaneously delivered to high level.And UE4 is then judged oneself be not belonging to the D2D group identify corresponding D2D group at Member, therefore abandon the data packet.
Example 2
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 configuration belong to D2D communication set X, and UE4 belongs to D2D communication set Y.D2D communication set application layer mark is known in advance before D reaches emergency place in Officer A, B, C Know GID and the wireless resource information for public safety, wherein wireless resource information may include frequency point and band information.It arrives Up to after emergency place, UE is not in network coverage, but UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group.With this Meanwhile the UE2 of Officer B, C, D, UE3, UE4 want to receive multicast information.Then UE1, UE2, UE3, UE4 first will D2D communication set application layer identification GID is mapped to D2D group air interface identifier according to predefined rule, monitors the wireless of predistribution later Resource.The UE1 for wanting to send data obtains resource by way of competition, Figure 15 be according to the present invention example 2 without covering field Scape D2D cast communication flow chart, as shown in figure 15.Compete UE1 broadcast transmission cast communication data after resource, transmitted number It is carried according to packet in MAC/RLC/PDCP subheader and D2D group air interface identifier is mapped to according to predefined rule.Optionally, cast communication number According to packet the instruction of D2D cast communication and the air interface identifier information of UE1 can be carried in MAC/RLC/PDCP subheader.
UE2, UE3 and the UE4 of Officer B, C, D monitor the public safety radio resource known in advance.Assuming that UE2, UE3, UE4 have listened to data packet transmission, then receive the data packet, and the D2D group of parsing MAC/RLC/PDCP subheader is eated dishes without rice or wine Mark.UE2 and UE3 judge the D2D air interface identifier with oneself belonging to D2D communication set mapping D2D air interface identifier it is consistent, then UE2 and UE3 further progress MAC/RLC/PDCP dissection process is simultaneously delivered to high level.And UE4 is then judged oneself to be not belonging to The D2D group identifies the member of corresponding D2D group, therefore abandons the data packet.
This predefined mapping ruler is possible to generate different D2D communication set application layer identity maps to the same D2D The case where group air interface identifier, in this case, the D2D group that UE can continue through IP layers of multicast address or application layer carries Information further determines whether it is corresponding correct D2D communication set, is to receive the data packet or discarding by high level judgement.
Example 3
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 configuration belong to D2D communication set X, and UE4 belongs to D2D communication set Y.The IP multicast of D2D communication set is known in advance before D reaches emergency place in Officer A, B, C Address and wireless resource information for public safety, wherein wireless resource information may include frequency point and band information.It arrives Up to after emergency place, UE is not in network coverage, but UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group.With this Meanwhile the UE2 of Officer B, C, D, UE3, UE4 want to receive multicast information.Then UE1, UE2, UE3, UE4 first will The IP multicast address of D2D communication set is mapped to D2D group air interface identifier according to predefined rule, monitors the wireless money of predistribution later Source.The UE1 for wanting to send data obtains resource by way of competition, Figure 16 be according to the present invention example 3 without covering scene D2D cast communication flow chart, as shown in figure 16.Compete UE1 broadcast transmission cast communication data after resource, transmitted data Packet carries in MAC/RLC/PDCP subheader and is mapped to D2D group air interface identifier according to predefined rule.Optionally, cast communication data Packet can carry D2D cast communication instruction information and the air interface identifier of UE1 in MAC/RLC/PDCP subheader.
UE2, UE3 and the UE4 of Officer B, C, D monitor the public safety radio resource known in advance.Assuming that UE2, UE3, UE4 have listened to data packet transmission, then receive the data packet, and the D2D group of parsing MAC/RLC/PDCP subheader is eated dishes without rice or wine Mark.UE2 and UE3 judge the D2D air interface identifier with oneself belonging to D2D communication set mapping D2D air interface identifier it is consistent, then UE2 and UE3 further progress MAC/RLC/PDCP dissection process is simultaneously delivered to high level.And UE4 is then judged oneself to be not belonging to The D2D group identifies the member of corresponding D2D group, therefore abandons the data packet.
The IP multicast address that this predefined mapping ruler is possible to generate different D2D communication sets is mapped to same The case where D2D group air interface identifier, in this case, UE, can continue through IP layers of multicast address to further determine whether to be Corresponding correct D2D communication set is to receive the data packet or discarding by high level judgement.
Example 4
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 configuration belong to D2D communication set X, and UE4 belongs to D2D communication set Y.D2D communication set application layer mark is known in advance before D reaches emergency place in Officer A, B, C Know GID and the wireless resource information for public safety, wherein wireless resource information may include frequency point and band information.It arrives Up to after emergency place, UE is not in network coverage, but UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group, with this Meanwhile the UE2 of Officer B, C, D, UE3, UE4 want to receive multicast information.The UE1 for wanting to send data is raw first At D2D group air interface identifier, resource is obtained by way of competition and periodically send D2D communication set application layer identification GID and The map information of D2D group air interface identifier, Figure 17 be according to the present invention example 4 without covering scene D2D cast communication flow chart, such as Shown in Figure 17.UE2, UE3, UE4 monitor the radio resource of predistribution, obtain D2D communication set application layer identification GID and D2D group is empty The map information of mouth mark, then judges oneself whether also joined corresponding group of GID of D2D communication set application layer identification, if It is the map information for saving D2D communication set application layer identification GID Yu D2D group air interface identifier.
It, can broadcast transmission cast communication number after UE1 competition to resource in addition to periodic broadcast group identification map information According to transmitted data packet carries the D2D group air interface identifier generated in MAC/RLC/PDCP subheader.Optionally, cast communication data Packet can carry D2D cast communication instruction information and the air interface identifier of UE1 in MAC/RLC/PDCP subheader.
UE2, UE3 and the UE4 of Officer B, C, D monitor the public safety radio resource known in advance.Assuming that UE2, UE3, UE4 have listened to data packet transmission, then receive the data packet, and the D2D group of parsing MAC/RLC/PDCP subheader is eated dishes without rice or wine Mark.UE2 and UE3 judge the D2D air interface identifier with oneself belonging to the corresponding D2D air interface identifier of D2D communication set it is consistent, then UE2 and UE3 further progress MAC/RLC/PDCP dissection process is simultaneously delivered to high level.And UE4 is then judged oneself to be not belonging to The D2D group identifies the member of corresponding D2D group, therefore abandons the data packet.
The mode that this UE oneself generates D2D group air interface identifier is possible to generate different UE for different D2D communication sets The case where application layer identity map is to the same D2D group air interface identifier, in this case, UE can continue through cast communication number Further judge according to the D2D group information that the air interface identifier of the UE1 of packet carrying or IP layers of multicast address or application layer carry Whether it is corresponding correct D2D communication set, is to receive the data packet or discarding by high level judgement.Furthermore it is also possible to occur not With UE by the same D2D communication set application layer identity map arrive different D2D group air interface identifiers the case where, therefore monitoring UE needs While saving D2D communication set application layer identification and D2D group air interface identifier mapping relations, eating dishes without rice or wine for corresponding transmission UE is recorded Mark, for the received judgement processing of subsequent cast communication data packet.
Example 5
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 configuration belong to D2D communication set X, and UE4 belongs to D2D communication set Y.In Officer A, B, C, before D reaches emergency place, know that D2D broadcast communication identifies in advance BID and wireless resource information for public safety, wherein wireless resource information may include frequency point and band information.It reaches After emergency place, UE is not in network coverage, but UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate broadcast communication, other Officer relevant informations in informing group.Then The UE1 of Officer A monitors the radio resource service condition of predistribution, resource is obtained by way of competition, Figure 18 is basis Present example 5 without covering scene D2D broadcast communication flow chart, as shown in figure 18.Compete UE1 broadcast transmission after resource Data packet, transmitted data packet identify BID in the D2D broadcast communication that MAC/RLC/PDCP subheader carries predistribution.Optionally, extensively D2D broadcast communication instruction and the air interface identifier information of UE1 can be carried in MAC/RLC/PDCP subheader by broadcasting communication data packet.
UE2, UE3 and the UE4 of Officer B, C, D monitor the public safety radio resource known in advance.Assuming that UE2, UE3, UE4 have listened to data packet transmission, then receive the data packet, and the D2D broadcast of parsing MAC/RLC/PDCP subheader is logical Beacon is known, and after judgement is broadcast communication, then further progress MAC/RLC/PDCP dissection process and is delivered to high level.
Embodiment two
The present embodiment has provided D2D multicast and broadcast communication establishing method under central node covering scene.The spy of the embodiment Sign is the distribution for having central node to carry out resource coordination and D2D multicast/broadcast air interface identifier.Central node can be eNB, It can be the common UE of execution resource and mark distribution that UE is served as.The embodiment can be used for public safety scene, it can also be used to Business scenario.It is elaborated below by way of example 6 to example 9.
Example 6
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 configuration belong to D2D communication set X, and UE4 belongs to D2D communication set Y.D2D communication set application layer mark is known in advance before D reaches emergency place in Officer A, B, C Know GID.After reaching emergency place, although UE is in network coverage or without the network coverage in having chosen It entreats within the scope of coverage, and UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group.Then For the UE1 of Officer A first to CN/eNB transmission group communication request message, which includes the D2D of the distribution obtained in advance logical Letter group application layer identification GID, Figure 19 are that example 6 has covering scene D2D cast communication flow chart according to the present invention, such as Figure 19 institute Show.Furthermore organizing in communication request message also may include communication set priority, the QoS information etc. of one or more group business streams.
After CN/eNB node receives the message, admission control is carried out, the multicast for including according to cast communication request message is logical Communication service stream QoS information, determine receive multicast/broadcast communication traffic streams, and distribution group communication air interface identifier G-RNTI and Interface-free resources configuration.If Business Stream needs continue for some time, such as voice or video, then it is quiet can to distribute half for it by CN/eNB The scheduling of resource of state.
After CN/eNB completes admission control and resource allocation, transmission group communication acknowledgement message is to UE1, wherein including receiving Business Stream, the G-RNTI of distribution distribute to interface-free resources and configuration information of cast communication etc..Multicast interface-free resources information includes Any combination of following field: the frequency point of cast communication, band resource, frame/sub-frame offset, sub-frame mode, time slot, resource block, Resource repetition period etc..It additionally may include the resource allocation information of corresponding resource, if resource bearing identifies, media access control MAC configuration information processed, wireless spread-spectrum technology RLC configuration information, Packet Data Convergence Protocol PDCP configuration information, logic channel are matched Confidence breath.
Furthermore the periodic broadcast transmission D2D communication set application layer identification GID of CN/eNB communicates air interface identifier G- with group The corresponding sub-frame mode information of the map information and cast communication of RNTI.It additionally can be with the corresponding resource of broadcast transmission Resource allocation information, if resource bearing identifies, media access control MAC configuration information, wireless spread-spectrum technology RLC configuration information, Packet Data Convergence Protocol PDCP configuration information, logic channel configuration information of data radio bearer.Correspondingly, UE1, UE2, UE3, UE4 receive the period Property broadcast D2D communication set application layer identification GID communicate the map information of air interface identifier G-RNTI with organizing.UE2 and UE3 judgement connects The D2D communication set application layer identification GID received with know that D2D communication set application layer identification GID is consistent in advance, then UE2 and UE3 are protected Deposit D2D communication set application layer identification GID and communicate the mapping of air interface identifier G-RNTI with group, the corresponding sub-frame mode of cast communication with And resource allocation information, and configured accordingly according to resource allocation information.
UE1 sends D2D cast communication data packet in the resource that CN/eNB is distributed, and data packet can carry D2D group and eat dishes without rice or wine Mark.As UE1 can carry D2D group air interface identifier and/or D2D multicast indication field in MAC/RLC/PDCP subheader.Or UE1 hair The D2D cast communication data packet sent is scrambled using D2D group air interface identifier.Or the D2D cast communication data packet that UE1 is sent The resource corresponding to D2D group air interface identifier distributed using CN/eNB, D2D cast communication data packet are used by sending data packet The implicit carrying D2D group air interface identifier information of resource location.
UE2, UE3 and UE4 are interesting to D2D multicast is received, and UE2 and UE3 have obtained the D2D of D2D communication set X Group air interface identifier.The corresponding sub-frame mode information of cast communication that UE2 and UE3 is obtained before supervises corresponding subframe It listens and receives D2D multicast packet.If receive D2D multicast packet, further according to scrambling situation, resource location or The judgement of MAC/RLC/PDCP subheader corresponds to the D2D air interface identifier of the D2D multicast packet.If it is determined that the D2D air interface identifier Corresponding to the D2D group that UE2 and UE3 is added, then UE2 and UE3 completes the dissection process of MAC/RLC/PDCP and is delivered to high level.
Example 7
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 are configured and belonged to D2D communication set X, And UE4 belongs to D2D communication set Y.D2D communication set application layer is known in advance before D reaches emergency place in Officer A, B, C Identify GID.After reach emergency place, although UE is choosing in network coverage or without the network coverage In central node coverage area, and UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group.Then For the UE1 of Officer A first to CN/eNB transmission group communication request message, which includes the D2D of the distribution obtained in advance logical Letter group application layer identification GID, Figure 20 are that example 7 has covering scene D2D cast communication flow chart according to the present invention, such as Figure 20 institute Show.Furthermore organizing in communication request message also may include communication set priority, the QoS information etc. of one or more group business streams.
After CN/eNB node receives the message, admission control is carried out, the multicast for including according to cast communication request message is logical Communication service stream QoS information determines the cast communication Business Stream received, and distribution group communicates air interface identifier G-RNTI and eats dishes without rice or wine to provide Source configuration.
After CN/eNB completes admission control and resource allocation, transmission group communication acknowledgement message organizes communication acknowledgement message to UE1 It may include the business stream information received.Furthermore the periodic broadcast transmission D2D communication set application layer identification GID of CN/eNB and group are logical Believe the map information of air interface identifier G-RNTI.Correspondingly, the D2D communication set that UE1, UE2, UE3, UE4 receive periodic broadcast is answered The map information of air interface identifier G-RNTI is communicated with group with layer identification GID.UE2 and UE3 judges the D2D communication set application received Layer identification GID with know that D2D communication set application layer identification GID is consistent in advance, then UE2 and UE3 save D2D communication set application layer mark Know the map information that GID communicates air interface identifier G-RNTI with group.
CN/eNB broadcast transmission includes the scheduling information of D2D group communication resource distribution later, may include in the scheduling information The instruction information of transmitting terminal UE1.It eats dishes without rice or wine to mark for corresponding D2D group to D2D communication set X interested UE1, UE2 and UE3 detection Know corresponding resource allocation information.If detecting that resource allocation information exists, UE1 is sent in the resource that CN/eNB is distributed D2D cast communication data packet, D2D cast communication data packet is by sending the implicit carrying D2D of the resource location that uses of data packet Group air interface identifier information.
UE2, UE3 monitor and receive D2D multicast packet in the resource allocation corresponding to D2D communication set X detected, It completes the dissection process of MAC/RLC/PDCP and is delivered to high level.
Example 8
In public safety scene, Officer A, B, C, D using the public safety UE1, UE2, UE3 for having D2D function and UE4.Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 are configured and belonged to D2D communication set X, And UE4 belongs to D2D communication set Y.D2D communication set application layer is known in advance before D reaches emergency place in Officer A, B, C Identify GID.After reach emergency place, although UE is choosing in network coverage or without the network coverage In central node coverage area, and UE1, UE2, UE3, UE4 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group.Then For the UE1 of Officer A first to CN/eNB transmission group communication request message, which includes the D2D of the distribution obtained in advance logical Letter group application layer identification GID, Figure 21 are that example 8 has covering scene D2D cast communication flow chart according to the present invention, such as Figure 21 institute Show.
After CN/eNB node receives the message, admission control, and distribution group communication air interface identifier G-RNTI and sky are carried out Mouth resource distribution.If Business Stream needs continue for some time, such as voice or video, then CN/eNB can be semi-static for its distribution Scheduling of resource.
After CN/eNB completes admission control and resource allocation, transmission group communication acknowledgement message is to UE1.Furthermore the CN/eNB period Property broadcast transmission D2D communication set application layer identification GID with group communicate air interface identifier G-RNTI map information and be not directed to The D2D cast communication resource of particular UE.Multicast interface-free resources information includes any combination of following field: the frequency of cast communication Point, band resource, frame/sub-frame offset, sub-frame mode, time slot, resource block, resource repetition period etc..Correspondingly, UE1, UE2, The D2D communication set application layer identification GID that UE3, UE4 receive periodic broadcast believes with the mapping that group communicates air interface identifier G-RNTI Breath.The D2D communication set application layer identification GID and know D2D communication set application layer mark in advance that UE1, UE2 and UE3 judgement receive It is consistent to know GID, then UE1, UE2 and UE3 save D2D communication set application layer identification GID and communicate reflecting for air interface identifier G-RNTI with group Penetrate information and D2D cast communication interface-free resources information.
UE1 monitors the D2D cast communication radio resource service condition for not being directed to particular UE of CN/eNB distribution later, passes through The mode of competition obtains resource.UE1 broadcast transmission cast communication data after resource are competed, transmitted data packet is in MAC/RLC/ PDCP subheader carries the D2D group mark of predistribution.Optionally, cast communication data packet can be carried in MAC/RLC/PDCP subheader The air interface identifier information of the instruction of D2D cast communication and UE1.
The UE2 of Officer B, C, D, UE3 do not believe according to what is got for the D2D cast communication radio resource of particular UE Breath, is monitored in the radio resource.Assuming that UE2, UE3 have listened to data packet transmission, then the data packet is received, parsed The D2D group of MAC/RLC/PDCP subheader identifies.UE2 and UE3 judges the member for oneself belonging to the corresponding D2D group of D2D group mark, Then UE2 and UE3 further progress MAC/RLC/PDCP dissection process and it is delivered to high level.
Example 9
In public safety scene, Officer A, B, C use the public safety UE1, UE2, UE3 for having D2D function. Officer A, B, C have subscribed public safety service.After reaching emergency place, though UE in network coverage or So without the network coverage but in the central node coverage area chosen, and UE1, UE2, UE3 are each other in D2D communication range It is interior.
In emergency place, Officer A wishes to initiate broadcast communication, informs other Officer relevant informations, then The UE1 of Officer A first to CN/eNB send broadcast communication request message, the message include may include communication set priority, The QoS information etc. of one or more broadcasting service streams, Figure 22 are that example 9 has a covering scene D2D cast communication according to the present invention Flow chart, as shown in figure 22.
After CN/eNB node receives the message, admission control is carried out, distributes broadcast communication air interface identifier B-RNTI and sky Mouth resource distribution.If Business Stream needs continue for some time, such as voice or video, then CN/eNB can be semi-static for its distribution Scheduling of resource.
After CN/eNB completes admission control and resource allocation, broadcast communication confirmation message is sent to UE1, wherein comprising receiving Business Stream, the B-RNTI of distribution distributes to the interface-free resources etc. of broadcast communication.Broadcasting interface-free resources information includes following field Any combination: the frequency point of broadcast communication, band resource, frame/sub-frame offset, sub-frame mode, time slot, resource block, resource repeat Period etc..
Furthermore the periodic broadcast transmission broadcast communication air interface identifier B-RNTI of CN/eNB and the corresponding son of broadcast communication Frame pattern information.Correspondingly, UE1, UE2, UE3 and save receive periodic broadcast broadcast communication air interface identifier B-RNTI and Broadcast communication sub-frame mode information.
UE1 sends D2D broadcast communication data packet in the resource that CN/eNB is distributed, and it is empty that data packet can carry D2D broadcast Mouth mark.As UE1 can carry D2D broadcast identification and/or D2D broadcast indication field in MAC/RLC/PDCP subheader.Or UE1 hair The D2D broadcast communication data packet sent is scrambled using D2D broadcast air interface identifier.
UE2 and UE3 is interesting to D2D broadcast is received, and UE2 and UE3 have obtained D2D broadcast air interface identifier.UE2 Corresponding subframe is monitored with the corresponding sub-frame mode information of broadcast communication that UE3 is obtained before and to receive D2D wide Unicast packets.If receiving data packet, further according to scrambling situation or the broadcast of MAC/RLC/PDCP subheader protection Air interface identifier judgement correspond to the data packet whether be broadcast packet, if it is UE2 and UE3 complete MAC/RLC/PDCP parsing It handles and is delivered to high level.
Example 10
In public safety scene, Officer A, B, C use the public safety UE1, UE2, UE3 for having D2D function. Officer A, B, C have subscribed public safety service.D2D is known in advance before B, C reach emergency place in Officer A Broadcast communication is eated dishes without rice or wine B-RNTI information.After reaching emergency place, although UE covers in network coverage or without network Lid but in the central node coverage area chosen, and UE1, UE2, UE3 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate broadcast communication, other Officer relevant informations in informing group.Then The UE1 of Officer A sends broadcast communication request message to CN/eNB first, and Figure 23 is that example 10 has covering according to the present invention Scene D2D broadcast communication flow chart, as shown in figure 23, after CN/eNB node receives the message, carry out admission control, and distribute and Or adjustment broadcast communication interface-free resources configuration.
After CN/eNB completes admission control and resource allocation, broadcast communication confirmation message is sent to UE1.Furthermore CN/eNB weeks The broadcast transmission of phase property is not directed to the D2D broadcast communication resource of particular UE.Broadcasting interface-free resources information includes appointing for following field Meaning combination: the frequency point of broadcast communication, band resource, frame/sub-frame offset, sub-frame mode, time slot, resource block, resource repetition period Deng.Correspondingly, UE1, UE2, UE3 receive and save the D2D broadcast communication resource information of periodic broadcast.
UE1 monitors the D2D broadcast communication radio resource service condition for not being directed to particular UE of CN/eNB distribution later, passes through The mode of competition obtains resource.UE1 broadcast transmission broadcast communication data after resource is competed, transmitted data packet is in MAC/RLC/ The D2D that PDCP subheader carries predistribution broadcasts air interface identifier.Optionally, broadcast communication data packet can be in MAC/RLC/PDCP subheader Carry D2D broadcast communication instruction and the air interface identifier information of UE1.
UE2, UE3 are according to the D2D broadcast communication wireless resource information for not being directed to particular UE got, in the wireless money It is monitored in source.Assuming that UE2, UE3 have listened to data packet transmission, then the data packet is received, parses MAC/RLC/PDCP subheader D2D broadcast air interface identifier, further progress MAC/RLC/PDCP dissection process is simultaneously delivered to high level.
Embodiment three
The present embodiment provides D2D multicast and broadcast communication establishing method under the covering scene of part.During the embodiment is characterized in Centre node cannot cover the UE of all progress D2D multicast/broadcast communications, UE still need to singly complete resource contention and The mapping of D2D multicast/broadcast air interface identifier or predefined mode obtain.It is elaborated below by way of example 11.
Example 11
In public safety scene, Officer A, B, C use the public safety UE1, UE2, UE3 for having D2D function. Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 are configured and belonged to D2D communication set X.? Officer A before B, C reach emergency place, is known D2D multicast/broadcast communication air interface identifier information in advance and may be used In the resource collection information of broadcast/group broadcast communication.After reaching emergency place, UE1 is in network coverage, and UE2 and UE3 Without the network coverage, furthermore UE1, UE2, UE3 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate broadcast/group broadcast communication, other Officer correlations letter in informing group Breath.Then the UE1 of OfficerA sends broadcast/group broadcast communication request message to CN/eNB first, and Figure 24 is example according to the present invention 11 have a covering scene D2D broadcast communication flow chart, as shown in figure 24.After CN/eNB node receives the message, receiving control is carried out System, and the broadcast/group broadcast communication interface-free resources configuration for particular UE is distributed and/or adjusts, which should be with UE The resource collection information for the D2D broadcast/group broadcast communication known in advance is consistent, can be its subset.
After CN/eNB completes admission control and resource allocation, broadcast/group broadcast communication acknowledgement message is sent to UE1.Furthermore CN/ The periodic broadcast transmission broadcast/group broadcast air interface identifier of eNB and the corresponding D2D broadcast/group broadcast for not being directed to particular UE communicate Resource.Broadcast/group broadcast interface-free resources information includes any combination of following field: the frequency point of multicast/broadcast communication, frequency band money Source, frame/sub-frame offset, sub-frame mode, time slot, resource block, resource repetition period etc..Correspondingly, UE1, UE2, UE3 are received and are protected The D2D broadcast/group broadcast communication resource information of cycle of deposit broadcast.
UE1 monitors the D2D cast communication radio resource service condition for not being directed to particular UE of CN/eNB distribution later, passes through The mode of competition obtains resource.UE1 broadcast transmission cast communication data after resource are competed, transmitted data packet is in MAC/RLC/ PDCP subheader carries the D2D broadcast/group broadcast air interface identifier of predistribution.Optionally, broadcast/group broadcast communication data packet can be in MAC/ RLC/PDCP subheader carries D2D broadcast/group broadcast communication instruction and the air interface identifier information of UE1.
UE2 is according to the D2D broadcast/group broadcast communication radio resource information for not being directed to particular UE got, described wireless Resource is monitored.And UE3 is provided according to the resource collection information for being possibly used for broadcast/group broadcast communication is known in advance accordingly It is monitored on source.Assuming that UE2, UE3 have listened to data packet transmission, then the data packet, parsing MAC/RLC/PDCP are received The D2D of head broadcasts air interface identifier, and further progress MAC/RLC/PDCP dissection process is simultaneously delivered to high level.
Example 12
In public safety scene, Officer A, B, C use the public safety UE1, UE2, UE3 for having D2D function. Officer A, B, C, D have subscribed public safety service, and UE1, UE2, UE3 are configured and belonged to D2D communication set X.? Officer A before B, C reach emergency place, is known D2D multicast/broadcast communication air interface identifier information in advance and may be used In the resource collection information of broadcast/group broadcast communication.After reaching emergency place, UE1 is in network coverage, and UE2 and UE3 Without the network coverage, furthermore UE1, UE2, UE3 are each other in D2D communication range.
In emergency place, Officer A wishes to initiate cast communication, other Officer relevant informations in informing group.Then For the UE1 of Officer A first to CN/eNB transmission group communication request message, which includes the D2D of the distribution obtained in advance logical Letter group application layer identification GID, Figure 25 are the part covering scene D2D cast communication flow charts of example 12 according to the present invention, are such as schemed Shown in 25.Furthermore organizing in communication request message also may include communication set priority, the QoS information of one or more group business streams Deng.
After CN/eNB node receives the message, admission control is carried out, the multicast for including according to cast communication request message is logical Communication service stream QoS information, determine receive multicast/broadcast communication traffic streams, and distribution group communication air interface identifier G-RNTI and Interface-free resources configuration.If Business Stream needs continue for some time, such as voice or video, then it is quiet can to distribute half for it by CN/eNB The scheduling of resource of state.
After CN/eNB completes admission control and resource allocation, transmission group communication acknowledgement message is to UE1, wherein including receiving Business Stream, the G-RNTI of distribution distribute to interface-free resources and configuration information of cast communication etc..Multicast interface-free resources information includes Any combination of following field: the frequency point of cast communication, band resource, frame/sub-frame offset, sub-frame mode, time slot, resource block, Resource repetition period etc..It additionally may include the resource allocation information of corresponding resource, if resource bearing identifies, media access control MAC configuration information processed, wireless spread-spectrum technology RLC configuration information, Packet Data Convergence Protocol PDCP configuration information, logic channel are matched Confidence breath.
Furthermore the periodic broadcast transmission D2D communication set application layer identification GID of CN/eNB communicates air interface identifier G- with group The corresponding sub-frame mode information of the map information and cast communication of RNTI.It additionally can be with the corresponding resource of broadcast transmission Resource allocation information, if resource bearing identifies, media access control MAC configuration information, wireless spread-spectrum technology RLC configuration information, Packet Data Convergence Protocol PDCP configuration information, logic channel configuration information of data radio bearer.Correspondingly, UE1, UE2 receive periodic broadcast D2D communication set application layer identification GID communicates the map information of air interface identifier G-RNTI with group.At the same time, UE1 is periodically wide It broadcasts the map information for sending D2D communication set application layer identification GID to communicate air interface identifier G-RNTI with group and cast communication is corresponding Resource information.It additionally can be with the resource allocation information of the corresponding resource of broadcast transmission.UE2 and UE3 judges the D2D received Communication set application layer identification GID with know that D2D communication set application layer identification GID is consistent in advance, then UE2 and UE3 save D2D communication Group communicates the mapping of air interface identifier G-RNTI, the corresponding resource of cast communication and resource distribution letter using layer identification GID with group Breath, and configured accordingly according to resource allocation information.
UE1 sends D2D cast communication data packet in the resource that CN/eNB is distributed, and data packet can carry D2D group and eat dishes without rice or wine Mark.As UE1 can carry D2D group air interface identifier and/or D2D multicast indication field in MAC/RLC/PDCP subheader.Or UE1 hair The D2D cast communication data packet sent is scrambled using D2D group air interface identifier.Or the D2D cast communication data packet that UE1 is sent The resource corresponding to D2D group air interface identifier distributed using CN/eNB, D2D cast communication data packet are used by sending data packet The implicit carrying D2D group air interface identifier information of resource location.
UE2, UE3 are interested in D2D multicast is received, and UE2 and UE3 have obtained the D2D group sky of D2D communication set X Mouth mark.The corresponding sub-frame mode information of cast communication that UE2 and UE3 is obtained before monitors simultaneously corresponding subframe Receive D2D multicast packet.If receiving D2D multicast packet, further according to scrambling situation, resource location or MAC/ The judgement of RLC/PDCP subheader corresponds to the D2D air interface identifier of the D2D multicast packet.If it is determined that the D2D air interface identifier is corresponding In the D2D group that UE2 and UE3 is added, then UE2 and UE3 completes the dissection process of MAC/RLC/PDCP and is delivered to high level.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (25)

1. a kind of device-to-device D2D multicast/broadcast communication processing method characterized by comprising
Obtain the air interface identifier for identifying the communication of D2D multicast/broadcast and/or the resource letter of D2D multicast/broadcast communication Breath；
D2D multicast/broadcast communication process is carried out in the corresponding resource of resource information according to air interface identifier, wherein described to eat dishes without rice or wine Mark is the air interface identifier for identifying the communication of D2D multicast/broadcast, and the resource information is the D2D multicast/broadcast communication Resource information.
2. the method according to claim 1, wherein corresponding in the resource information according to the air interface identifier D2D multicast/broadcast communication process is carried out in resource includes:
D2D multicast/broadcast communication data packet is sent in the corresponding resource of the resource information according to the air interface identifier；With/ Or,
D2D multicast/broadcast communication data packet is received in the corresponding resource of the resource information according to the air interface identifier.
3. the method according to claim 1, wherein obtaining the sky for identifying the communication of D2D multicast/broadcast Mouth mark includes at least one of:
The air interface identifier is obtained from D2D application server；
According to the first pre-defined rule, obtained by way of by D2D multicast/broadcast application layer identity map to air interface identifier described Air interface identifier；
According to the second pre-defined rule, described eat dishes without rice or wine is obtained in such a way that D2D multicast/broadcast IP address is mapped to air interface identifier Mark；
The air interface identifier that acquisition system is defaulted in advance；
The air interface identifier is generated according to D2D multicast/broadcast application layer identification；
The air interface identifier is obtained from adjacent node, wherein the adjacent node periodic broadcast includes the air interface identifier Message；
Obtain the air interface identifier from central node, wherein the central node be used to communicate the D2D multicast/broadcast into Row control.
4. according to the method described in claim 3, it is characterized in that, including: from the central node acquisition air interface identifier
The D2D multicast/broadcast communication request comprising D2D multicast/broadcast application layer identification is sent to the central node；
Receive the air interface identifier that the central node is distributed according to the D2D multicast/broadcast communication request.
5. according to the method described in claim 3, it is characterized in that, including: from the central node acquisition air interface identifier
The message comprising the air interface identifier is received, the message is sent out by way of periodic broadcast by the central node It send.
6. the method according to claim 1, wherein obtaining the money for D2D multicast/broadcast communication Source information includes at least one of:
The resource information is obtained from D2D application server；
Obtain the resource information of system default；
The resource information is obtained by the way of competition；
The resource information is obtained from adjacent node, wherein the adjacent node periodic broadcast includes the resource information Message；
Obtain the resource information from central node, wherein the central node be used to communicate the D2D multicast/broadcast into Row control.
7. according to the method described in claim 6, it is characterized in that, including: from the central node acquisition resource information
The message comprising the resource information is received, the message is sent out by way of periodic broadcast by the central node It send.
8. according to the method described in claim 6, it is characterized in that, including: from the central node acquisition resource information
D2D multicast/broadcast communication request is sent to the central node；
Receive the resource information for the resource that the central node is distributed according to the D2D multicast/broadcast communication request.
9. according to the method described in claim 8, it is characterized in that, the multicast/broadcast communication request include it is following at least One of:
D2D multicast/broadcast application layer identification, D2D multicast/broadcast IP address, multicast/broadcast communication instruction, D2D multicast/broadcast Priority, one or more multicast/broadcast communication traffic streams service quality QoS information.
10. according to the method described in claim 9, it is characterized in that, including one or more in the multicast/broadcast communication request In the case where a multicast/broadcast communication traffic streams service quality QoS information, receive the central node according to the D2D multicast/ The resource information of resource of broadcast communication request distribution includes:
Receive the multicast/broadcast communication acknowledgement message that the central node is sent, wherein the central node is according to described group Broadcast/broadcast communication request include one or more of multicast/broadcast communication traffic streams service quality QoS information received Control determines the multicast/broadcast communication traffic streams received, and the multicast/broadcast communication acknowledgement message includes at least one of: Resource information, the multicast/broadcast communication traffic streams of receiving of the resource of the central node distribution.
11. the method according to any one of claim 6 to 10, which is characterized in that the resource information includes following At least one:
The vertical shift that the frequency point information of multicast/broadcast communication, the band resource information of multicast/broadcast communication, multicast/broadcast communicate Information, the sub-frame offset information of multicast/broadcast communication, the sub-frame mode information of multicast/broadcast communication, multicast/broadcast communicate The resource repetition period information and the resource that gap information, the resource block information of multicast/broadcast communication, multicast/broadcast communicate The mark of the user equipment of the corresponding D2D multicast/broadcast air interface identifier of information, transmission D2D multicast/broadcast communication data packet Information.
12. the method according to any one of claim 6 to 10, which is characterized in that the resource information includes corresponding The resource allocation information at least one of of resource:
Resource bearing mark, media access control MAC configuration information, wireless spread-spectrum technology RLC configuration information, packet data convergence Agreement PDCP configuration information, logic channel configuration information of data radio bearer.
13. according to the method described in claim 2, it is characterized in that, corresponding in the resource information according to the air interface identifier Resource on send the D2D multicast/broadcast communication data packet and include:
The D2D for carrying D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast is sent in the resource Multicast/broadcast communication data packet.
14. according to the method for claim 13, which is characterized in that sent out in the resource at least one in the following manner Send the D2D multicast/broadcast for carrying the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast instruction logical Letter data packet:
Pass through media access control MAC/wireless spread-spectrum technology RLC/ packet count in the D2D multicast/broadcast communication data packet According to the side for carrying the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast instruction in convergence protocol PDCP subheader Formula, in the resource send carry the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast instruction The D2D multicast/broadcast communication data packet；
It is logical to the D2D multicast/broadcast by using the D2D multicast/broadcast air interface identifier and/or the instruction of D2D multicast/broadcast Believe that resource allocation control information and/or data packet carry out scrambled mode, is sent in the resource and carry the D2D group Broadcast/broadcast air interface identifier and/or the D2D multicast/broadcast communication data packet of D2D multicast/broadcast instruction；
By sending the implicit carrying D2D multicast of resource location that the D2D multicast/broadcast communication data packet uses/wide Broadcast air interface identifier and/or the D2D multicast/broadcast instruction mode, in the resource send carry the D2D multicast/ Broadcast the D2D multicast/broadcast communication data packet of air interface identifier and/or D2D multicast/broadcast instruction, wherein send institute State the resource location that D2D multicast/broadcast communication data packet uses correspond to the D2D multicast/broadcast air interface identifier and/or The D2D multicast/broadcast instruction.
15. according to the method described in claim 2, it is characterized in that, corresponding in the resource information according to the air interface identifier Resource on receive the D2D multicast/broadcast communication data packet and include:
Judge whether the recipient of the D2D multicast/broadcast communication data packet belongs to according to the air interface identifier described to eat dishes without rice or wine to mark Know corresponding multicast/broadcast communication set；
In the case where the judgment result is yes, dissection process is carried out to the D2D multicast/broadcast communication data packet, and will parsing Data packet afterwards is sent to high level；And/or if the determination result is NO, the D2D multicast/broadcast communication number is abandoned According to packet.
16. a kind of device-to-device D2D multicast/broadcast communication processing apparatus characterized by comprising
Module is obtained, for obtaining air interface identifier and/or the D2D multicast/broadcast for identifying the communication of D2D multicast/broadcast The resource information of communication；
Processing module, for carrying out D2D multicast/broadcast communication process in the corresponding resource of resource information according to air interface identifier, Wherein, the air interface identifier is the air interface identifier for identifying the communication of D2D multicast/broadcast, and the resource information is the D2D group Broadcast/the resource information of broadcast communication.
17. device according to claim 16, which is characterized in that the processing module includes:
Transmission unit is logical for sending D2D multicast/broadcast in the corresponding resource of the resource information according to the air interface identifier Letter data packet；And/or
Receiving unit is logical for receiving D2D multicast/broadcast in the corresponding resource of the resource information according to the air interface identifier Letter data packet.
18. device according to claim 16, which is characterized in that the acquisition module includes at least one of:
First acquisition unit, for obtaining the air interface identifier from D2D application server；
Second acquisition unit, for according to the first pre-defined rule, by by D2D multicast/broadcast application layer identity map to eating dishes without rice or wine The mode of mark obtains the air interface identifier；
Third acquiring unit is used for according to the second pre-defined rule, by the way that D2D multicast/broadcast IP address is mapped to air interface identifier Mode obtain the air interface identifier；
4th acquiring unit, the air interface identifier defaulted in advance for obtaining system；
Generation unit, for generating the air interface identifier according to D2D multicast/broadcast application layer identification；
5th acquiring unit, for obtaining the air interface identifier from adjacent node, wherein the adjacent node periodic broadcast packet Message containing the air interface identifier；
6th acquiring unit, for obtaining the air interface identifier from central node, wherein the central node is used for described The communication of D2D multicast/broadcast is controlled.
19. device according to claim 18, which is characterized in that the 5th acquiring unit includes:
First transmission sub-unit, for the central node send comprising D2D multicast/broadcast application layer identification D2D multicast/ Broadcast communication request；
First receiving subelement, for receiving the central node according to described in D2D multicast/broadcast communication request distribution Air interface identifier.
20. device according to claim 16, which is characterized in that the acquisition module includes at least one of:
7th acquiring unit, for obtaining the resource information from D2D application server；
8th acquiring unit, for obtaining the resource information of system default；
9th acquiring unit, for obtaining the resource information by the way of competition；
Tenth acquiring unit, for obtaining the resource information from adjacent node, wherein the adjacent node periodic broadcast packet Message containing the resource information；
11st acquiring unit, for obtaining the resource information from central node, wherein the central node is used for described The communication of D2D multicast/broadcast is controlled.
21. device according to claim 20, which is characterized in that the 11st acquiring unit includes:
Second transmission sub-unit, for sending D2D multicast/broadcast communication request to the central node；
Second receiving subelement, the resource distributed for receiving the central node according to the D2D multicast/broadcast communication request The resource information.
22. device according to claim 17, which is characterized in that the transmission unit includes:
Third transmission sub-unit carries D2D multicast/broadcast air interface identifier and/or D2D group for sending in the resource Broadcast/broadcast the D2D multicast/broadcast communication data packet of instruction.
23. device according to claim 22, which is characterized in that the third transmission sub-unit include it is following at least it One:
First sends time subelement, for passing through media access control MAC/nothing in the D2D multicast/broadcast communication data packet The D2D multicast/broadcast air interface identifier and/or described is carried in wired link control RLC/ Packet Data Convergence Protocol PDCP subheader The mode of D2D multicast/broadcast instruction, sends in the resource and carries the D2D multicast/broadcast air interface identifier and/or institute State the D2D multicast/broadcast communication data packet of D2D multicast/broadcast instruction；
Second sends time subelement, for referring to by using the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast Show and information and/or the scrambled mode of data packet progress are controlled to the D2D multicast/broadcast communication resource distribution, in the resource Upper transmission carries the D2D multicast of the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast instruction/wide Broadcast communication data packet；
Third sends time subelement, for implicit by sending the resource location that the D2D multicast/broadcast communication data packet uses Carry the D2D multicast/broadcast air interface identifier and/or the D2D multicast/broadcast instruction mode, sent out in the resource Send the D2D multicast/broadcast for carrying the D2D multicast/broadcast air interface identifier and/or D2D multicast/broadcast instruction logical Letter data packet, wherein send the resource location that the D2D multicast/broadcast communication data packet uses and correspond to the D2D group Broadcast/broadcast air interface identifier and/or D2D multicast/broadcast instruction.
24. device according to claim 17, which is characterized in that the receiving unit includes:
Judgment sub-unit, for judge according to the air interface identifier D2D multicast/broadcast communication data packet recipient whether Belong to the corresponding multicast/broadcast communication set of the air interface identifier；
Parsing subunit, for the judging result of the judgment sub-unit be in the case where, to the D2D multicast/broadcast Communication data packet carries out dissection process, and the data packet after parsing is sent to high level；And/or subelement is abandoned, in institute State judgment sub-unit judging result be it is no in the case where, abandon the D2D multicast/broadcast communication data packet.
25. a kind of user equipment, which is characterized in that including device described in any one of claim 16 to 24.
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