CN104754524B - A kind of method of group communication, user equipment, base station equipment and system - Google Patents

A kind of method of group communication, user equipment, base station equipment and system Download PDF

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Publication number
CN104754524B
CN104754524B CN201510147650.3A CN201510147650A CN104754524B CN 104754524 B CN104754524 B CN 104754524B CN 201510147650 A CN201510147650 A CN 201510147650A CN 104754524 B CN104754524 B CN 104754524B
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group
user equipment
frequency resource
running time
base station
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CN104754524A (en
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郑倩
雷艺学
张晨璐
其他发明人请求不公开姓名
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Shenzhen Coolpad Technologies Co Ltd
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Shenzhen Coolpad Technologies Co Ltd
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Priority to PCT/CN2015/080407 priority patent/WO2016155113A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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

Abstract

The invention discloses a kind of method of group communication, including：Buffer Status Report BSR is sent to base station equipment, the BSR carries at least one group's index, each group's index is corresponding to the group id of at least one group where this user equipment, each group's index or each group id are mapped in a predefined priority value, so that the base station equipment distributes running time-frequency resource according to the priority value for different user equipmenies；Obtain the running time-frequency resource that the base station equipment is the distribution of this user equipment；According to the priority value, running time-frequency resource described in the group allocation where this user equipment；Group communication is carried out with the other user equipmenies being assigned in the group of the running time-frequency resource.Correspondingly, the embodiment of the invention also discloses the systems of a kind of user equipment, base station equipment and group communication.The group communication method of the present invention can ensure that the resource needed for group communication obtains an equitable breakdown, and improve quality of service.

Description

A kind of method of group communication, user equipment, base station equipment and system
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of method of group communication, user equipment, base stations to set Standby and system.
Background technology
With the continuous development of wireless communication technique, terminal direct communication (Device to Device, D2D) has become One of hot spot of 3GPP Rel-12 standardized techniques.D2D allows two user equipmenies (User Equipment, UE) to pass through spy Fixed channel (Sidelink Channel) directly carries out data transmission, without being subjected to evolved base station equipment (Evolutional Node B, eNB), certainly, D2D is not limited to the data transmission between two user equipmenies, can be with Support the group communication (Group Communication) of single point-to-multipoint.For example, referring to Fig. 7, SRC UE tables as shown in the figure Show that source UE (i.e. the UE of transmission data), DST UE represent target UE (UE for receiving data), source UE and target UE are in its Group It is interior that group communication is carried out by Sidelink Channel, in addition, it can be seen that source UE and target UE can be in simultaneously from figure In different Group.
The process of the existing group communication of D2D is：(1) source UE sends Buffer Status Report (Buffer to eNB Status Report, BSR), to ask running time-frequency resource；(2) source UE monitors Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) or enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH), to demodulate the buffer requirement amount (Buffer Size) for its distribution, i.e., Running time-frequency resource；(3) time-frequency resource allocating is given each Group to carry out group communication by source UE.
But since eNB will not distinguish the priority of not homologous UE and the priority of the different Group of same source UE, Lead to problems with occur：(1) limited running time-frequency resource can only be randomly assigned and give source UE by eNB, if priority is high at this time The running time-frequency resource of source UE requests is few and the running time-frequency resource of source UE that priority is low request is more, it is likely that most resource all by Assign to the low source UE of priority；(2) limited running time-frequency resource can only be randomly assigned to the Group of same source UE by eNB, if this When the high Group requests of priority running time-frequency resource is few and the running time-frequency resource of Group that priority is low request is more, then be likely to Most resource is all assigned to the low Group of priority.
Invention content
The present invention provides a kind of method of group communication, user equipment, base station equipment and system, solves communication group money Unbalanced problem is distributed in source, can ensure that the resource needed for group communication obtains an equitable breakdown by the technical program, is improved Quality of service.
User equipment described in the present invention refers to the communication equipment with data transmission capabilities, including but not limited to hand Machine terminal, intelligent terminal, wearable device；Base station equipment described in the present invention including traditional base station equipment and has The equipment of base station functions, such as terminated cell (T-SC).
First aspect of the embodiment of the present invention provides a kind of method of group communication, and the method is applied to end side, packet It includes：
Buffer Status Report BSR is sent to base station equipment, the BSR carries at least one group's index, each described Group's index is corresponding to the group id of at least one group where this user equipment, each group's index or each The group id is mapped in a predefined priority value, so that the base station equipment is not according to the priority value Same user equipment distribution running time-frequency resource；
Obtain the running time-frequency resource that the base station equipment is the distribution of this user equipment；
According to the priority value, running time-frequency resource described in the group allocation where this user equipment；
Group communication is carried out with the other user equipmenies being assigned in the group of the running time-frequency resource.
It is described to send Buffer Status Report BSR to base station equipment in the first possible realization method of first aspect Before, it further includes：
The running time-frequency resource sent needed for the BSR is judged whether there is, if it is not, scheduling request SR then is sent to base station equipment, So that the base station equipment sends the running time-frequency resource needed for the BSR for the distribution of this user equipment.
Possibility realization method with reference to first aspect, second may in realization method, group's index with it is described The relationship mapped between priority value, including：
Identical group index is mapped in the group pair of the same priority value, wherein identical services type The group index answered is identical.
With reference to first aspect and second of first aspect may realization method, in the third possible realization method, The relationship mapped between group index and the priority value is to pass through broadcast message or wireless by the base station equipment What Resource Control protocols RRC information or non access stratum NAS message notified.
Possibility realization method with reference to first aspect, in the 4th kind of possible realization method, group index with it is described Corresponding relationship between group id is to be defined by this user equipment and passed through radio control protocols RRC information or non-access Layer NAS message is reported to the base station equipment.
With reference to first aspect and the 4th kind of possible realization method of first aspect, in the 5th kind of possible realization method, The relationship mapped between the group id and the priority value is defined by closing on service function Prose Function And notify this user equipment or the base station equipment.
Second aspect of the embodiment of the present invention provides a kind of method of group communication, and the method is applied to base station side, packet It includes：
It receives Buffer Status Report BSR, the BSR that at least one user equipment is sent and carries at least one group's rope Draw, each group indexes the group id corresponding at least one group where a user equipment, each described Group indexes or each group id is mapped in a predefined priority value；
Running time-frequency resource is distributed for different user equipmenies according to the priority value, so that each user equipment difference By the time-frequency resource allocating to respective group, and other users with being assigned in the group of the running time-frequency resource set It is standby to carry out group communication.
In the first possible realization method of second aspect, it is described receive BSR that at least one user equipment sends it Before, it further includes：
If receiving the scheduling request SR of any one user equipment transmission, for described in user equipment distribution transmission Running time-frequency resource needed for BSR.
With reference to the possibility realization method of second aspect, second may in realization method, group's index with it is described The relationship mapped between priority value, including：
Identical group index is mapped in the group pair of the same priority value, wherein identical services type The group index answered is identical.
With reference to second of second aspect and second aspect may realization method, in the third possible realization method, Before the BSR for receiving at least one user equipment and sending, further include：
The group is indexed to the relationship mapped between the priority value, by broadcast message or RRC information or Non access stratum NAS message notifies each user equipment.
With reference to the possibility realization method of second aspect, in the 4th kind of possible realization method, group's index with it is described Corresponding relationship between group id is that each user equipment defines and passes through radio control protocols RRC information or non- Access layer NAS message reports.
With reference to the 4th kind of possible realization method of second aspect and second aspect, in the 5th kind of possible realization method, The relationship mapped between the group id and the priority value is defined by closing on service function Prose Function , and by the user equipment for closing on service function or specifying or mobility management entity MME/ home subscriber servers HSS notices.
The third aspect of the embodiment of the present invention provides a kind of user equipment, including：
It reports sending module, carries at least one for sending Buffer Status Report BSR, the BSR to base station equipment Group indexes, and each group indexes the group id corresponding at least one group where this user equipment, each Group's index or each group id are mapped in a predefined priority value, so that the base station equipment root According to the priority value running time-frequency resource is distributed for different user equipmenies；
Source obtaining module, for obtaining the running time-frequency resource that the base station equipment is the distribution of this user equipment；
Resource distribution module, for according to the priority value, being described in the group allocation where this user equipment Running time-frequency resource；
Group communication module, for carrying out group with the other user equipmenies being assigned in the group of the running time-frequency resource Group communication.
In the first possible realization method of the third aspect, the user equipment further includes：
Scheduling request module, for judging whether there is the running time-frequency resource sent needed for the BSR, if it is not, then being set to base station Preparation send scheduling request SR, so that the base station equipment sends the running time-frequency resource needed for the BSR for the distribution of this user equipment.
With reference to the possibility realization method of the third aspect, second may in realization method, group's index with it is described The relationship mapped between priority value, including：
Identical group index is mapped in the group pair of the same priority value, wherein identical services type The group index answered is identical.
With reference to second of the third aspect and the third aspect may realization method, in the third possible realization method, The relationship mapped between group index and the priority value is to pass through broadcast message or wireless by the base station equipment What Resource Control protocols RRC information or non access stratum NAS message notified.
With reference to the possibility realization method of the third aspect, in the 4th kind of possible realization method, group's index with it is described Corresponding relationship between group id is to be defined by this user equipment and passed through radio control protocols RRC information or non-access Layer NAS message is reported to the base station equipment.
With reference to the 4th kind of possible realization method of the third aspect and the third aspect, in the 5th kind of possible realization method, The relationship mapped between the group id and the priority value is defined by closing on service function Prose Function And notify this user equipment or the base station equipment.
Fourth aspect of the embodiment of the present invention provides a kind of method of group communication, including：
Receiving module is reported, for receiving the Buffer Status Report BSR, the BSR that at least one user equipment is sent At least one group's index is carried, each group's index is corresponding to the group of at least one group where a user equipment Group identification code, each group's index or each group id are mapped in a predefined priority value；
Resource distribution module, for distributing running time-frequency resource for different user equipmenies according to the priority value, so that respectively A user equipment gives the time-frequency resource allocating to respective group respectively, and with being assigned to described in the running time-frequency resource Other user equipmenies in group carry out group communication.
In the first possible realization method of fourth aspect, the base station equipment further includes：
Dispatching response module, if for receiving the scheduling request SR of any one user equipment transmission, for the user Equipment distribution sends the running time-frequency resource needed for the BSR.
With reference to the possibility realization method of fourth aspect, second may in realization method, group's index with it is described The relationship mapped between priority value, including：
Identical group index is mapped in the group pair of the same priority value, wherein identical services type The group index answered is identical.
With reference to second of fourth aspect and fourth aspect may realization method, in the third possible realization method, The base station equipment further includes：
Relationship notification module for the group to be indexed the relationship mapped between the priority value, passes through broadcast Message or RRC information or non access stratum NAS message notify each user equipment.
With reference to the possibility realization method of fourth aspect, in the 4th kind of possible realization method, group's index with it is described Corresponding relationship between group id is that each user equipment defines and passes through radio control protocols RRC information or non- Access layer NAS message reports.
With reference to the 4th kind of possible realization method of fourth aspect and fourth aspect, in the 5th kind of possible realization method, The relationship mapped between the group id and the priority value is defined by closing on service function Prose Function , and by the user equipment for closing on service function or specifying or mobility management entity MME/ home subscriber servers HSS notices.
The system that the 5th aspect of the embodiment of the present invention provides group communication, the use provided including at least one third aspect The base station equipment that family equipment and fourth aspect provide.
In the embodiment of the present invention, user equipment carries at least one group's index in the BSR sent to base station equipment, In each group's index correspond to the group id of at least one group where user equipment, each group's index or each Group id is mapped in a predefined priority value, so that base station equipment is according to BSR and predefined priority value Different user equipment distribution running time-frequency resource, after each user equipment is received as the running time-frequency resource of its distribution, further according to predefined Priority value by each group where the time-frequency resource allocating to its got, and then with being assigned in the group of running time-frequency resource Other user equipmenies carry out group communication, so as to ensure that the resource needed for group communication obtains an equitable breakdown, time-frequency is avoided to provide Source is assigned to the smaller user equipment of priority value and group too much, improves quality of service.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, for this field For those of ordinary skill, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is a kind of flow diagram of the method for group communication provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of the method for another group communication provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of the method for another group communication provided in an embodiment of the present invention；
Fig. 4 is a kind of structure diagram of user equipment provided in an embodiment of the present invention；
Fig. 5 is a kind of structure diagram of base station equipment provided in an embodiment of the present invention；
Fig. 6 is a kind of structure diagram of the system of group communication provided in an embodiment of the present invention；
Fig. 7 is a kind of schematic diagram of a scenario of group communication provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts Example, shall fall within the protection scope of the present invention.
It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, such as：Long term evolution (Long Term Evolution, referred to as " LTE ") system, LTE frequency division duplex (Frequency Division Duplex, Referred to as " FDD ") system, LTE time division duplexs (Time Division Duplex, referred to as " TDD "), universal mobile communications system System (Universal Mobile Telecommunication System, referred to as " UMTS ") or global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system etc..
It should also be understood that in embodiments of the present invention, user equipment (User Equipment, referred to as " UE ") can be referred to as Terminal (Terminal), mobile station (Mobile Station, referred to as " MS ") or mobile terminal (Mobile Terminal) It can be through wireless access network (Radio Access Network, referred to as " RAN ") and one or more cores Deng, the user equipment Heart net communicates, for example, user equipment can be mobile phone (or being " honeycomb " phone) or the meter with mobile terminal Calculation machine etc., for example, user equipment can also be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile dress It puts, they exchange voice and/or data with wireless access network.Correspondingly, base station equipment can be the evolved base station in LTE (Evolutional Node B, referred to as " eNB ").
In order to make it easy to understand, the scene of the group communication of the lower embodiment of the present invention is first introduced, referring to Fig. 7, as shown in the figure SRC UE represent that source UE (i.e. the UE of transmission data), DST UE represent target UE (UE for receiving data), and dotted line circle represents group Group Group, source UE and target UE carry out group communication in its Group by Sidelink Channel, in addition, can from figure Learn that source UE and target UE can be simultaneously in different Group.ENB represents base station equipment as shown in the figure, and source UE need to be to eNB The group communication with the target UE in Group can be realized after request running time-frequency resource.
Fig. 1 is a kind of flow diagram of the method for group communication in the embodiment of the present invention, and this method is applied to communication system User equipment in system.The flow of the method for the group communication in the present embodiment can include as shown in the figure：
S101 sends Buffer Status Report BSR, the BSR to base station equipment and carries at least one group's index, each Group index corresponds to the group id of at least one group where this user equipment, each group's index or Each group id is mapped in a predefined priority value, so that the base station equipment is according to the priority value Running time-frequency resource is distributed for different user equipmenies.
In LTE communication system, Buffer Status Report BSR (Buffer Status Report) to eNB for reporting The buffer requirement amount (Buffer Size) of UE, i.e., required running time-frequency resource, in embodiments of the present invention, particularly for being reported to eNB The required running time-frequency resource of each group Group where announcement UE, so that eNB is each group allocation running time-frequency resource, such as：Source Group where UE has 3, and the running time-frequency resource needed for Group1, Group2 and Group3 difference is a, b and c, then in source UE After eNB sends BSR, the running time-frequency resource of eNB distribution a+b+c gives source UE, source UE to be separately dispensed into Group1, Group2 again And Group3.
The embodiment of the present invention can pass through eNB management and control to ensure that the running time-frequency resource needed for group communication obtains an equitable breakdown Or the mode of service function Prose Function management and control is closed on, it is higher that limited running time-frequency resource is assigned to priority as possible Group.
1. eNB management and control modes.
Specifically, user equipment (source UE) sends BSR to base station equipment, and the BSR carries at least one group's index, often A group's index is corresponding to the group id of at least one group where this user equipment, each group's index It is mapped in a predefined priority value.Wherein, group is indexed as the information in the group index fields in BSR, group Identification code can unique mark group, it will be appreciated that for different Group is distinguished by the group index fields in BSR, often A group index are mapped in a predefined priority value.Such as：Group where the UE of source has 3, group1, The group id of group2 and group3 is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, is predefined excellent First grade value Gi1=5, Gi2=3, Gi3=1.
Correspondingly, base station equipment receives the BSR that at least one user equipment is sent, and is different use according to priority value Family equipment distribution running time-frequency resource.Such as：ENB receives the BSR that 2 source UE are sent, group's rope that the BSR that source UE1 is sent is carried Drawing has Gi1, Gi2 and Gi3, and group's index that the BSR that source UE2 is sent is carried has Gi4 and Gi5, predefined priority value Gi1= 5, Gi2=3, Gi3=1, Gi4=2, Gi5=4, and needed for group1, group2, group3, group4 and group5 difference Running time-frequency resource is a, if eNB has the running time-frequency resource of a+a+a for distributing, then according to the sequence that priority value is ascending, ENB is that the running time-frequency resource of Gi1, Gi2, Gi3, Gi4 and Gi5 distribution is 0, a, a, a, 0 respectively, and then understand that eNB is source UE1 and source The running time-frequency resource that UE2 is distributed respectively is a+a and a.
2. close on service function Prose Function management and control modes.
Specifically, user equipment (source UE) sends BSR to base station equipment, and the BSR carries at least one group's index, often A group indexes the group id corresponding at least one group where this user equipment, by different group identifications Code is distinguished by the group index fields in BSR, and each group id is mapped in a predefined priority value. Such as：Group where the UE of source has 3, and the group id of group1, group2 and group3 are g1, g2 and g3, are corresponded to Group's index for Gi1, Gi2 and Gi3, predefine priority value g1=5, g2=3, g3=1.
Correspondingly, base station equipment receives the BSR that at least one user equipment is sent, and is different use according to priority value Family equipment distribution running time-frequency resource.Such as：ENB receives the BSR that 2 source UE are sent, group's rope that the BSR that source UE1 is sent is carried Drawing has Gi1, Gi2 and Gi3, and group's index that the BSR that source UE2 is sent is carried has Gi4 and Gi5, Gi1, Gi2, Gi, Gi4 and Gi5 couple The group id answered is respectively g1, g2, g3, g4 and g5, predefined priority value g1=5, g2=3, g3=1, g4=2, G5=4, and required running time-frequency resource is a respectively by group1, group2, group3, group4 and group5, if eNB has a+a The running time-frequency resource of+a is used to distribute, then according to the sequence that priority value is ascending, eNB g1, g2, g3, g4 and g5 distribution Running time-frequency resource be 0, a, a, a, 0 respectively, and then understand eNB is source UE1 and source UE2 is distributed respectively running time-frequency resource be a+a and a。
S102 obtains the running time-frequency resource that the base station equipment is the distribution of this user equipment.
Specifically, user equipment (source UE) is by monitoring Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) or enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH), obtain the summation of running time-frequency resource that all groups of the base station equipment where it are distributed.
S103, according to the priority value, running time-frequency resource described in the group allocation where this user equipment.
Such as：Assuming that the group where user equipment (source UE) has 3, the group of group1, group2 and group3 know Other code is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, predefines priority value Gi1=5, Gi2=3, Gi3=1 or predefined priority value g1=5, g2=3, g3=1, group1, group2 and group3 respectively needed for when Frequency resource is a, and eNB only has a+a in total for its running time-frequency resource distributed, then according to the sequence that priority value is ascending, User equipment be group1, group2 and group3 distribution running time-frequency resource be 0, a, a.
S104 carries out group communication with the other user equipmenies being assigned in the group of the running time-frequency resource.
Such as：Assuming that the running time-frequency resource of group1, group2 and group3 distribution is 0, a, a, then source UE and group2 In target UE and group3 in target UE carry out group communication.
In the embodiment of the present invention, user equipment carries at least one group's index in the BSR sent to base station equipment, In each group's index correspond to the group id of at least one group where user equipment, each group's index or each Group id is mapped in a predefined priority value, so that base station equipment is according to BSR and predefined priority value Different user equipment distribution running time-frequency resource, after each user equipment is received as the running time-frequency resource of its distribution, further according to predefined Priority value by each group where the time-frequency resource allocating to its got, and then with being assigned in the group of running time-frequency resource Other user equipmenies carry out group communication, so as to ensure that the resource needed for group communication obtains an equitable breakdown, time-frequency is avoided to provide Source is assigned to the smaller user equipment of priority value and group too much, improves quality of service.
Fig. 2 is the flow diagram of the method for another group communication in the embodiment of the present invention, is specifically described based on eNB Group communication method under the mode of management and control, this method are applied to user equipment and base station equipment in communication system.It can wrap It includes：
Group is indexed the relationship mapped between priority value by S201, base station equipment, passes through broadcast message or wireless controlled Agreement RRC information or non access stratum NAS message processed notify each user equipment.
The English full name of wherein RRC is that the English full name of Radio Resource Control, NAS are Non-Access Stratum.The priority value is pre-defined, can be that base station equipment defines or designer defines, Here it is not construed as limiting.
S202, user equipment judge whether there is the running time-frequency resource sent needed for BSR.
Specifically, user equipment (source UE) it is judged whether or not send BSR needed for running time-frequency resource, if not having, hold Row step S203, if so, then performing step S205.
S203, user equipment send scheduling request SR to base station equipment.
The English full name of wherein SR is Scheduling Request.Specifically, user equipment (source UE) is to base station equipment Scheduling request SR is sent to ask distribution running time-frequency resource.
S204, if base station equipment receives the scheduling request SR of any one user equipment transmission, for the user equipment Distribution sends the running time-frequency resource needed for the BSR.
S205, user equipment send Buffer Status Report BSR, the BSR to base station equipment and carry at least one group Index, each group indexes the group id corresponding at least one group where this user equipment, each described Group's index is mapped in a predefined priority value.
Specifically, user equipment (source UE) sends BSR to base station equipment, and the BSR carries at least one group's index, often A group's index is corresponding to the group id of at least one group where this user equipment, each group's index It is mapped in a predefined priority value.Wherein, group is indexed as the information in the group index fields in BSR, group Identification code can unique mark group, it will be appreciated that for different Group is distinguished by the group index fields in BSR, often A group index are mapped in a predefined priority value.Such as：Group where the UE of source has 3, group1, The group id of group2 and group3 is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, is predefined excellent First grade value Gi1=5, Gi2=3, Gi3=1.
Optionally, identical group index is mapped in same priority value, and the group of wherein identical services type is corresponding Group's index is identical.It is indexed it is understood that the identical group of type of service is grouped into same group by source UE.
S206, base station equipment receive the Buffer Status Report BSR that at least one user equipment is sent.
S207, base station equipment distribute running time-frequency resource according to the priority value for different user equipmenies.
Such as：ENB receives the BSR that 2 source UE are sent, and group's index that the BSR that source UE1 is sent is carried has Gi1, Gi2 And group's index that the BSR that sends of Gi3, source UE2 is carried has a Gi4 and Gi5, predefined priority value Gi1=5, Gi2=3, Running time-frequency resource needed for Gi3=1, Gi4=2, Gi5=4, and group1, group2, group3, group4 and group5 difference It is a, if eNB has the running time-frequency resource of a+a+a for distributing, then according to the sequence that priority value is ascending, eNB Gi1, The running time-frequency resource of Gi2, Gi3, Gi4 and Gi5 distribution is 0, a, a, a, 0 respectively, and then understands that eNB divides respectively for source UE1 and source UE2 The running time-frequency resource matched is a+a and a.
S208, user equipment obtain the running time-frequency resource that the base station equipment is the distribution of this user equipment.
Specifically, user equipment (source UE) is by monitoring Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) or enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH), obtain the summation of running time-frequency resource that all groups of the base station equipment where it are distributed.
S209, user equipment is according to the priority value, time-frequency described in the group allocation where this user equipment Resource.
Such as：Assuming that the group where user equipment (source UE) has 3, the group of group1, group2 and group3 know Other code is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, predefines priority value Gi1=5, Gi2=3, Required running time-frequency resource is a respectively by Gi3=1, group1, group2 and group3, and the running time-frequency resource that eNB is distributed for it is in total Only a+a, then according to the sequence that priority value is ascending, user equipment group1, group2 and group3 distribution Running time-frequency resource is 0, a, a.
S210, user equipment carry out group with the other user equipmenies being assigned in the group of the running time-frequency resource and lead to Letter.
Such as：Assuming that the running time-frequency resource of group1, group2 and group3 distribution is 0, a, a, then source UE and group2 In target UE and group3 in target UE carry out group communication.
In the embodiment of the present invention, user equipment carries at least one group's index in the BSR sent to base station equipment, In each group's index correspond to the group id of at least one group where user equipment, each group's index is mapped in One predefined priority value, so that base station equipment is different user equipment point according to BSR and predefined priority value With running time-frequency resource, after each user equipment is received as the running time-frequency resource of its distribution, will get further according to predefined priority value Time-frequency resource allocating to its where each group, and then other user equipmenies with being assigned in the group of running time-frequency resource into Row group communication so as to ensure that the resource needed for group communication obtains an equitable breakdown, avoids running time-frequency resource from being assigned to too much excellent First grade is worth smaller user equipment and group, improves quality of service.
Fig. 3 is the flow diagram of the method for another group communication in the embodiment of the present invention, specifically describes and is based on Group communication method under the mode of Prose Function management and control, this method are applied to user equipment and base in communication system Station equipment can include：
S301, user equipment defines group and indexes relationship corresponding between group id, and is assisted by wireless control View RRC information or non access stratum NAS message are reported to base station equipment.
The English full name of wherein RRC is that the English full name of Radio Resource Control, NAS are Non-Access Stratum。
In addition, the relationship mapped between group id and priority value, is by closing on service function Prose Function is defined and is notified this user equipment or the base station equipment.
Correspondingly, eNB obtains group id and priority except through predefined interface from Prose Function Outside the relationship mapped between value, can also by with mobility management entity MME (Mobility Management Entity the relevant interface of)/home subscriber server HSS (Home Subscriber Server) is obtained to Prose Function It takes, can also be obtained from the RRC information that source UE (it is required that after the UE first relevant interfaces from Prose Function in source obtain) sends It takes.
S302, user equipment judge whether there is the running time-frequency resource sent needed for BSR.
Specifically, user equipment (source UE) it is judged whether or not send BSR needed for running time-frequency resource, if not having, hold Row step S303, if so, then performing step S305.
S303, user equipment send scheduling request SR to base station equipment.
The English full name of wherein SR is Scheduling Request.Specifically, user equipment (source UE) is to base station equipment Scheduling request SR is sent to ask distribution running time-frequency resource.
S304, if base station equipment receives the scheduling request SR of any one user equipment transmission, for the user equipment Distribution sends the running time-frequency resource needed for the BSR.
S305, user equipment send Buffer Status Report BSR, the BSR to base station equipment and carry at least one group Index, each group indexes the group id corresponding at least one group where this user equipment, each described Group id is mapped in a predefined priority value.
Specifically, user equipment (source UE) sends BSR to base station equipment, and the BSR carries at least one group's index, often A group indexes the group id corresponding at least one group where this user equipment, by different group identifications Code is distinguished by the group index fields in BSR, and each group id is mapped in a predefined priority value. Such as：Group where the UE of source has 3, and the group id of group1, group2 and group3 are g1, g2 and g3, are corresponded to Group's index for Gi1, Gi2 and Gi3, predefine priority value g1=5, g2=3, g3=1.
S306, base station equipment receive the Buffer Status Report BSR that at least one user equipment is sent.
S307, base station equipment distribute running time-frequency resource according to the priority value for different user equipmenies.
Such as：ENB receives the BSR that 2 source UE are sent, and group's index that the BSR that source UE1 is sent is carried has Gi1, Gi2 And group's index of BSR carryings that Gi3, source UE2 are sent has Gi4 and Gi5, the corresponding group of Gi1, Gi2, Gi, Gi4 and Gi5 knows Other code is respectively g1, g2, g3, g4 and g5, predefined priority value g1=5, g2=3, g3=1, g4=2, g5=4, and Required running time-frequency resource is a respectively by group1, group2, group3, group4 and group5, if eNB has the time-frequency of a+a+a Resource is used to distribute, then according to the sequence that priority value is ascending, the time-frequency that eNB g1, g2, g3, g4 and g5 are distributed provides Source is 0, a, a, a, 0 respectively, and then understands that the running time-frequency resource that eNB is source UE1 and source UE2 is distributed respectively is a+a and a.
S308, user equipment obtain the running time-frequency resource that the base station equipment is the distribution of this user equipment.
Specifically, user equipment (source UE) is by monitoring Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) or enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH), obtain the summation of running time-frequency resource that all groups of the base station equipment where it are distributed.
S309, user equipment is according to the priority value, time-frequency described in the group allocation where this user equipment Resource.
Such as：Assuming that the group where user equipment (source UE) has 3, the group of group1, group2 and group3 know Other code is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, predefines priority value g1=5, g2=3, g3= 1, group1, required running time-frequency resource is a to group2 and group3 respectively, and eNB only has a in total for its running time-frequency resource distributed + a, then according to the sequence that priority value is ascending, the time-frequency money of user equipment group1, group2 and group3 distribution Source is 0, a, a.
S310, user equipment carry out group with the other user equipmenies being assigned in the group of the running time-frequency resource and lead to Letter.
Such as：Assuming that the running time-frequency resource of group1, group2 and group3 distribution is 0, a, a, then source UE and group2 In target UE and group3 in target UE carry out group communication.
In the embodiment of the present invention, user equipment carries at least one group's index in the BSR sent to base station equipment, In each group's index correspond to the group id of at least one group where user equipment, each group id mapping In a predefined priority value, so that base station equipment is different user equipmenies according to BSR and predefined priority value Running time-frequency resource is distributed, after each user equipment is received as the running time-frequency resource of its distribution, will be divided further according to predefined priority value Each group where the time-frequency resource allocating to its obtained, and then other user equipmenies with being assigned in the group of running time-frequency resource Group communication is carried out, so as to ensure that the resource needed for group communication obtains an equitable breakdown, running time-frequency resource is avoided to be assigned to too much Quality of service improves in the smaller user equipment of priority value and group.
Fig. 4 is a kind of structure diagram of user equipment in the embodiment of the present invention.As shown in the figure in the embodiment of the present invention User equipment can at least include report sending module 410, source obtaining module 420, resource distribution module 430 and group and lead to Believe module 440, wherein：
It reports sending module 410, at least one is carried for sending Buffer Status Report BSR, the BSR to base station equipment A group's index, each group index the group id corresponding at least one group where this user equipment, often A group's index or each group id are mapped in a predefined priority value, so that the base station equipment According to the priority value running time-frequency resource is distributed for different user equipmenies.
In LTE communication system, Buffer Status Report BSR (Buffer Status Report) to eNB for reporting The buffer requirement amount (Buffer Size) of UE, i.e., required running time-frequency resource, in embodiments of the present invention, particularly for being reported to eNB The required running time-frequency resource of each group Group where announcement UE, so that eNB is each group allocation running time-frequency resource, such as：Source Group where UE has 3, and the running time-frequency resource needed for Group1, Group2 and Group3 difference is a, b and c, then in source UE After eNB sends BSR, the running time-frequency resource of eNB distribution a+b+c gives source UE, source UE to be separately dispensed into Group1, Group2 again And Group3.
The embodiment of the present invention can pass through eNB management and control to ensure that the running time-frequency resource needed for group communication obtains an equitable breakdown Or the mode of service function Prose Function management and control is closed on, it is higher that limited running time-frequency resource is assigned to priority as possible Group.
1. eNB management and control modes.
Specifically, report sending module 410 sends BSR to base station equipment, and the BSR carries at least one group's index, Each group's index is corresponding to the group id of at least one group where this user equipment, each group's rope Draw and be mapped in a predefined priority value.Wherein, group is indexed as the information in the group index fields in BSR, group Group identification code can unique mark group, it will be appreciated that for different Group is distinguished by the group index fields in BSR, Each group index are mapped in a predefined priority value.Such as：Group where the UE of source has 3, group1, The group id of group2 and group3 is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, is predefined excellent First grade value Gi1=5, Gi2=3, Gi3=1.
Correspondingly, base station equipment receives the BSR that at least one user equipment is sent, and is different use according to priority value Family equipment distribution running time-frequency resource.Such as：ENB receives the BSR that 2 source UE are sent, group's rope that the BSR that source UE1 is sent is carried Drawing has Gi1, Gi2 and Gi3, and group's index that the BSR that source UE2 is sent is carried has Gi4 and Gi5, predefined priority value Gi1= 5, Gi2=3, Gi3=1, Gi4=2, Gi5=4, and needed for group1, group2, group3, group4 and group5 difference Running time-frequency resource is a, if eNB has the running time-frequency resource of a+a+a for distributing, then according to the sequence that priority value is ascending, ENB is that the running time-frequency resource of Gi1, Gi2, Gi3, Gi4 and Gi5 distribution is 0, a, a, a, 0 respectively, and then understand that eNB is source UE1 and source The running time-frequency resource that UE2 is distributed respectively is a+a and a.
2. close on service function Prose Function management and control modes.
Specifically, report sending module 410 sends BSR to base station equipment, and the BSR carries at least one group's index, Each group's index knows different groups corresponding to the group id of at least one group where this user equipment Other code is distinguished by the group index fields in BSR, and each group id is mapped in a predefined priority Value.Such as：Group where the UE of source has 3, and the group id of group1, group2 and group3 is g1, g2 and g3, Corresponding group's index is Gi1, Gi2 and Gi3, predefines priority value g1=5, g2=3, g3=1.
Correspondingly, base station equipment receives the BSR that at least one user equipment is sent, and is different use according to priority value Family equipment distribution running time-frequency resource.Such as：ENB receives the BSR that 2 source UE are sent, group's rope that the BSR that source UE1 is sent is carried Drawing has Gi1, Gi2 and Gi3, and group's index that the BSR that source UE2 is sent is carried has Gi4 and Gi5, Gi1, Gi2, Gi, Gi4 and Gi5 couple The group id answered is respectively g1, g2, g3, g4 and g5, predefined priority value g1=5, g2=3, g3=1, g4=2, G5=4, and required running time-frequency resource is a respectively by group1, group2, group3, group4 and group5, if eNB has a+a The running time-frequency resource of+a is used to distribute, then according to the sequence that priority value is ascending, eNB g1, g2, g3, g4 and g5 distribution Running time-frequency resource be 0, a, a, a, 0 respectively, and then understand eNB is source UE1 and source UE2 is distributed respectively running time-frequency resource be a+a and a。
Source obtaining module 420, for obtaining the running time-frequency resource that the base station equipment is the distribution of this user equipment.
Specifically, source obtaining module 420 is by monitoring Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) or enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH), obtain the summation of running time-frequency resource that all groups of the base station equipment where it are distributed.
Resource distribution module 430, for according to the priority value, the group allocation institute where this user equipment State running time-frequency resource.
Such as：Assuming that the group where user equipment (source UE) has 3, the group of group1, group2 and group3 know Other code is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, predefines priority value Gi1=5, Gi2=3, Gi3=1 or predefined priority value g1=5, g2=3, g3=1, group1, group2 and group3 respectively needed for when Frequency resource is a, and eNB only has a+a in total for its running time-frequency resource distributed, then according to the sequence that priority value is ascending, Resource distribution module 430 be group1, group2 and group3 distribution running time-frequency resource be 0, a, a.
Group communication module 440, for the other user equipmenies being assigned in the group of the running time-frequency resource into Row group communication.
Such as：Assuming that the running time-frequency resource of group1, group2 and group3 distribution is 0, a, a, then group communication module 440 carry out group communication with the target UE in the target UE and group3 in group2.
Optionally, referring to Fig. 4, the user equipment in the embodiment of the present invention can also include scheduling request mould as shown in the figure Block 450, for judging whether there is the running time-frequency resource sent needed for the BSR, if it is not, then sending scheduling request to base station equipment SR, so that the base station equipment sends the running time-frequency resource needed for the BSR for the distribution of this user equipment.
Fig. 5 is a kind of structure diagram of base station equipment in the embodiment of the present invention.As shown in the figure in the embodiment of the present invention Base station equipment can at least include report receiving module 510 and resource distribution module 520, wherein：
Report receiving module 510, it is described for the Buffer Status Report BSR for receiving that at least one user equipment sends BSR carries at least one group's index, and each group's index corresponds at least one group where a user equipment Group id, each group's index or each group id are mapped in a predefined priority value.
In LTE communication system, Buffer Status Report BSR (Buffer Status Report) to eNB for reporting The buffer requirement amount (Buffer Size) of UE, i.e., required running time-frequency resource, in embodiments of the present invention, particularly for being reported to eNB The required running time-frequency resource of each group Group where announcement UE, so that eNB is each group allocation running time-frequency resource, such as：Source Group where UE has 3, and the running time-frequency resource needed for Group1, Group2 and Group3 difference is a, b and c, then in source UE After eNB sends BSR, the running time-frequency resource of eNB distribution a+b+c gives source UE, source UE to be separately dispensed into Group1, Group2 again And Group3.
The embodiment of the present invention can pass through eNB management and control to ensure that the running time-frequency resource needed for group communication obtains an equitable breakdown Or the mode of service function Prose Function management and control is closed on, it is higher that limited running time-frequency resource is assigned to priority as possible Group.
1. eNB management and control modes.
User equipment (source UE) sends BSR to base station equipment, and the BSR carries at least one group's index, each described Corresponding to the group id of at least one group where this user equipment, each group indexes to be mapped in group's index One predefined priority value.Wherein, group is indexed as the information in the group index fields in BSR, group id It can unique mark group, it will be appreciated that for different Group is distinguished by the group index fields in BSR, each Group index are mapped in a predefined priority value.Such as：Group where the UE of source has 3, group1, group2 Group id with group3 is g1, g2 and g3, and corresponding group's index is Gi1, Gi2 and Gi3, predefines priority value Gi1=5, Gi2=3, Gi3=1.Specifically, report receiving module 510 receives the BSR that at least one user equipment is sent.
2. close on service function Prose Function management and control modes.
User equipment (source UE) sends BSR to base station equipment, and the BSR carries at least one group's index, each described Group's index passes through different group ids corresponding to the group id of at least one group where this user equipment Group index fields in BSR are distinguished, and each group id is mapped in a predefined priority value.Such as：Source Group where UE has 3, and the group id of group1, group2 and group3 is g1, g2 and g3, corresponding group It indexes as Gi1, Gi2 and Gi3, predefined priority value g1=5, g2=3, g3=1.Specifically, report receiving module 510 receives The BSR that at least one user equipment is sent.
Resource distribution module 520, for distributing running time-frequency resource for different user equipmenies according to the priority value, so that Each user equipment gives the time-frequency resource allocating to respective group, and the institute with being assigned to the running time-frequency resource respectively The other user equipmenies stated in group carry out group communication.
1. eNB management and control modes.
Such as：Report receiving module 510 receives the BSR that 2 source UE are sent, group's rope that the BSR that source UE1 is sent is carried Drawing has Gi1, Gi2 and Gi3, and group's index that the BSR that source UE2 is sent is carried has Gi4 and Gi5, predefined priority value Gi1= 5, Gi2=3, Gi3=1, Gi4=2, Gi5=4, and needed for group1, group2, group3, group4 and group5 difference Running time-frequency resource is a, if eNB has the running time-frequency resource of a+a+a for distributing, then according to the sequence that priority value is ascending, Resource distribution module 520 is 0, a, a, a, 0 respectively, and then understand to provide for the running time-frequency resource of Gi1, Gi2, Gi3, Gi4 and Gi5 distribution The running time-frequency resource that source distribution module 520 is source UE1 and source UE2 is distributed respectively is a+a and a.
2. close on service function Prose Function management and control modes.
Such as：Report receiving module 510 receives the BSR that 2 source UE are sent, group's rope that the BSR that source UE1 is sent is carried Drawing has Gi1, Gi2 and Gi3, and group's index that the BSR that source UE2 is sent is carried has Gi4 and Gi5, Gi1, Gi2, Gi, Gi4 and Gi5 couple The group id answered is respectively g1, g2, g3, g4 and g5, predefined priority value g1=5, g2=3, g3=1, g4=2, G5=4, and required running time-frequency resource is a respectively by group1, group2, group3, group4 and group5, if eNB has a+a The running time-frequency resource of+a is for distributing, then according to the sequence that priority value is ascending, resource distribution module 520 is g1, g2, The running time-frequency resource of g3, g4 and g5 distribution is 0, a, a, a, 0 respectively, and then understands that resource distribution module 520 is source UE1 and source UE2 The running time-frequency resource distributed respectively is a+a and a.
Further, user equipment (source UE) is by monitoring Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) or enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, ePDCCH), the summation of running time-frequency resource that all groups of the base station equipment where it are distributed is obtained, And then according to the priority value, running time-frequency resource described in the group allocation where this user equipment.Such as：Assuming that user Group where equipment (source UE) has 3, and the group id of group1, group2 and group3 is g1, g2 and g3, right The group answered is indexed as Gi1, Gi2 and Gi3, predefined priority value Gi1=5, Gi2=3, Gi3=1 or predefined preferential Required running time-frequency resource is a to grade value g1=5, g2=3, g3=1, group1, group2 and group3 respectively, and eNB is its point The running time-frequency resource matched only has a+a in total, then according to the sequence that priority value is ascending, user equipment group1, The running time-frequency resource of group2 and group3 distribution is 0, a, a.
Further, user equipment and the other user equipmenies being assigned in the group of the running time-frequency resource carry out Group communication.Such as：Assuming that the running time-frequency resource of group1, group2 and group3 distribution is 0, a, a, then source UE and group2 In target UE and group3 in target UE carry out group communication.
Optionally, referring to Fig. 5, the base station equipment in the embodiment of the present invention can also include scheduling request mould as shown in the figure Block 530, if for receiving the scheduling request SR of any one user equipment transmission, for described in user equipment distribution transmission Running time-frequency resource needed for BSR.
Again optionally, referring to Fig. 5, the base station equipment in the embodiment of the present invention can also include relationship notice as shown in the figure Module 540 for the group to be indexed the relationship mapped between the priority value, is disappeared by broadcast message or RRC Breath or non access stratum NAS message notify each user equipment.
Fig. 6 is a kind of structure diagram of the system of group communication in the embodiment of the present invention.The present invention is implemented as shown in the figure The system of group communication in example can include at least one user equipment 610 and base station equipment 620, wherein：
The user equipment 610 is such as previously in conjunction with the described user equipmenies of Fig. 4, for being sent to base station equipment 620 Buffer Status Report BSR, the BSR carry at least one group's index, and each group's index corresponds to 610 institute of user equipment At least one group group id, each group index or each group id be mapped in one it is predefined excellent First grade value；It is the running time-frequency resource that user equipment 610 distributes to obtain base station equipment 620；It is user equipment 610 according to priority value The group allocation running time-frequency resource at place；Group communication is carried out with the other user equipmenies being assigned in the group of running time-frequency resource.
The base station equipment 620 is such as previously in conjunction with the described base station equipments of Fig. 5, is set for receiving at least one user The standby 610 Buffer Status Report BSR sent；According to priority value running time-frequency resource is distributed for different user equipmenies 610.
In the embodiment of the present invention, user equipment carries at least one group's index in the BSR sent to base station equipment, In each group's index correspond to the group id of at least one group where user equipment, each group's index or each Group id is mapped in a predefined priority value, so that base station equipment is according to BSR and predefined priority value Different user equipment distribution running time-frequency resource, after each user equipment is received as the running time-frequency resource of its distribution, further according to predefined Priority value by each group where the time-frequency resource allocating to its got, and then with being assigned in the group of running time-frequency resource Other user equipmenies carry out group communication, so as to ensure that the resource needed for group communication obtains an equitable breakdown, time-frequency is avoided to provide Source is assigned to the smaller user equipment of priority value and group too much, improves quality of service.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module in device of the embodiment of the present invention, can be combined, divided and deleted according to actual needs.
Module described in the embodiment of the present invention can pass through universal integrated circuit, such as CPU (Central Processing Unit, central processing unit) or pass through ASIC (Application Specific Integrated Circuit, application-specific integrated circuit) it realizes.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, therefore equivalent variations made according to the claims of the present invention, is still within the scope of the present invention.

Claims (25)

  1. A kind of 1. method of group communication, which is characterized in that the method is applied to end side, the method includes：
    Buffer Status Report BSR, the BSR, which are sent, to base station equipment carries at least one group's index, each group Index is corresponding to the group id of at least one group where this user equipment, each group's index or each described Group id is mapped in a predefined priority value, so that the base station equipment is different according to the priority value User equipment distributes running time-frequency resource, running time-frequency resource of the running time-frequency resource needed for group communication；
    The running time-frequency resource that the base station equipment is the distribution of this user equipment is obtained, the running time-frequency resource is the base station equipment The summation of the running time-frequency resource of all group allocations where this user equipment；
    According to the priority value, running time-frequency resource described in the group allocation where this user equipment；
    Group communication is carried out with the other user equipmenies being assigned in the group of the running time-frequency resource.
  2. 2. the method as described in claim 1, which is characterized in that it is described to base station equipment send Buffer Status Report BSR it Before, it further includes：
    The running time-frequency resource sent needed for the BSR is judged whether there is, if it is not, scheduling request SR then is sent to base station equipment, so that The base station equipment sends the running time-frequency resource needed for the BSR for the distribution of this user equipment.
  3. 3. the method as described in claim 1, which is characterized in that the pass mapped between group's index and the priority value System, including：
    Identical group index is mapped in the same priority value, and the group of wherein identical services type is corresponding Group's index is identical.
  4. 4. method as claimed in claim 3, which is characterized in that the pass mapped between group's index and the priority value System is to be led to by the base station equipment by broadcast message or radio resource control RRC information or non access stratum NAS message Know.
  5. 5. the method as described in claim 1, which is characterized in that group's index is corresponding between the group id Relationship is to be defined by this user equipment and passed through radio control protocols RRC information or non access stratum NAS message is reported to the base Station equipment.
  6. 6. method as claimed in claim 5, which is characterized in that mapped between the group id and the priority value Relationship is to be defined by closing on service function Prose Function and notified this user equipment or the base station equipment.
  7. A kind of 7. method of group communication, which is characterized in that the method is applied to base station side, the method includes：
    It receives Buffer Status Report BSR, the BSR that at least one user equipment is sent and carries at least one group's index, Each group's index is corresponding to the group id of at least one group where a user equipment, each group Index or each group id are mapped in a predefined priority value；
    Running time-frequency resource is distributed for different user equipmenies according to the priority value, the running time-frequency resource is needed for group communication Running time-frequency resource, the running time-frequency resource are the summation of the running time-frequency resource of all group allocations where each user equipment, So that each user equipment gives the time-frequency resource allocating to respective group respectively, and with being assigned to the running time-frequency resource The group in other user equipmenies carry out group communication.
  8. 8. the method for claim 7, which is characterized in that before the BSR for receiving at least one user equipment and sending, It further includes：
    If receiving the scheduling request SR of any one user equipment transmission, the BSR institutes are sent for user equipment distribution The running time-frequency resource needed.
  9. 9. the method for claim 7, which is characterized in that the pass mapped between group's index and the priority value System, including：
    Identical group index is mapped in the same priority value, and the group of wherein identical services type is corresponding Group's index is identical.
  10. 10. method as claimed in claim 9, which is characterized in that it is described receive BSR that at least one user equipment sends it Before, it further includes：
    The group is indexed to the relationship mapped between the priority value, passes through broadcast message or radio control protocols RRC Message or non access stratum NAS message notify each user equipment.
  11. 11. the method for claim 7, which is characterized in that group's index is corresponding between the group id Relationship, be that each user equipment defines and passes through radio control protocols RRC information or non access stratum NAS message reports 's.
  12. 12. method as claimed in claim 11, which is characterized in that mapped between the group id and the priority value Relationship defined by closing on service function Prose Function, and by the user for closing on service function or specifying What equipment or mobility management entity MME/ home subscriber servers HSS were notified.
  13. 13. a kind of user equipment, which is characterized in that the user equipment includes：
    It reports sending module, at least one group is carried for sending Buffer Status Report BSR, the BSR to base station equipment Index, each group indexes the group id corresponding at least one group where this user equipment, each described Group indexes or each group id is mapped in a predefined priority value, so that the base station equipment is according to institute It states priority value and distributes running time-frequency resource, running time-frequency resource of the running time-frequency resource needed for group communication for different user equipmenies；
    Source obtaining module, for obtaining the running time-frequency resource that the base station equipment is the distribution of this user equipment, the time-frequency Resource is the summation for the running time-frequency resource that the base station equipment is all group allocations where this user equipment；
    Resource distribution module, for according to the priority value, being time-frequency described in the group allocation where this user equipment Resource；
    Group communication module is led to for carrying out group with the other user equipmenies being assigned in the group of the running time-frequency resource Letter.
  14. 14. user equipment as claimed in claim 13, which is characterized in that the user equipment further includes：
    Scheduling request module, for judging whether there is the running time-frequency resource sent needed for the BSR, if it is not, then being sent out to base station equipment Scheduling request SR is sent, so that the base station equipment sends the running time-frequency resource needed for the BSR for the distribution of this user equipment.
  15. 15. user equipment as claimed in claim 13, which is characterized in that reflected between group's index and the priority value The relationship penetrated, including：
    Identical group index is mapped in the same priority value, and the group of wherein identical services type is corresponding Group's index is identical.
  16. 16. user equipment as claimed in claim 15, which is characterized in that reflected between group's index and the priority value The relationship penetrated is to pass through broadcast message or radio resource control RRC information or Non-Access Stratum NAS by the base station equipment Message informing.
  17. 17. user equipment as claimed in claim 13, which is characterized in that between group's index and the group id Corresponding relationship is to be defined by this user equipment and passed through radio control protocols RRC information or non access stratum NAS message is reported to The base station equipment.
  18. 18. user equipment as claimed in claim 17, which is characterized in that between the group id and the priority value The relationship of mapping is to be defined by closing on service function Prose Function and notified this user equipment or the base station equipment 's.
  19. 19. a kind of base station equipment, which is characterized in that the base station equipment includes：
    Receiving module is reported, for receiving the Buffer Status Report BSR that at least one user equipment is sent, the BSR carryings At least one group's index, each group's index are known corresponding to the group of at least one group where a user equipment Other code, each group's index or each group id are mapped in a predefined priority value；
    Resource distribution module, for distributing running time-frequency resource, the time-frequency money for different user equipmenies according to the priority value Running time-frequency resource of the source needed for group communication, the running time-frequency resource is all group allocations where each user equipment Running time-frequency resource summation so that each user equipment is respectively by the time-frequency resource allocating to respective group, and with The other user equipmenies being assigned in the group of the running time-frequency resource carry out group communication.
  20. 20. base station equipment as claimed in claim 19, which is characterized in that the base station equipment further includes：
    Dispatching response module, if for receiving the scheduling request SR of any one user equipment transmission, for the user equipment Distribution sends the running time-frequency resource needed for the BSR.
  21. 21. base station equipment as claimed in claim 19, which is characterized in that reflected between group's index and the priority value The relationship penetrated, including：
    Identical group index is mapped in the same priority value, and the group of wherein identical services type is corresponding Group's index is identical.
  22. 22. base station equipment as claimed in claim 21, which is characterized in that the base station equipment further includes：
    Relationship notification module, for the group to be indexed the relationship mapped between the priority value, by broadcasting the message, Or radio control protocols RRC information or non access stratum NAS message notify each user equipment.
  23. 23. base station equipment as claimed in claim 19, which is characterized in that between group's index and the group id Corresponding relationship is that each user equipment is defined and passed through in radio control protocols RRC information or non access stratum NAS message Report.
  24. 24. base station equipment as claimed in claim 23, which is characterized in that between the group id and the priority value The relationship of mapping defines by closing on service function Prose Function, and is closed on service function by described or specified What user equipment or mobility management entity MME/ home subscriber servers HSS were notified.
  25. 25. a kind of system of group communication, which is characterized in that the system comprises at least one as claim 13-18 is any User equipment and such as claim 19-24 any one of them base station equipments described in.
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