CN105992363A - Group communication establishing and communication method in cluster communication system - Google Patents
Group communication establishing and communication method in cluster communication system Download PDFInfo
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- CN105992363A CN105992363A CN201510090019.4A CN201510090019A CN105992363A CN 105992363 A CN105992363 A CN 105992363A CN 201510090019 A CN201510090019 A CN 201510090019A CN 105992363 A CN105992363 A CN 105992363A
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Abstract
The present invention provides a group communication establishing and communication method in a cluster communication system. The method comprises: the cluster communication system employs an MBMS configuration, the eNB periodically sends group configuration information through an MCCH channel, and the MCCH channel employs a dynamic scheduling mode when the eNB periodically sends group configuration information; the eNB sends the scheduling information of an MCCH signaling through an M-RNTI, the MCCH signaling is group configuration information which includes group identification and a group G-RNTI, and the group G-RNTI is a group temporary identification distributed by the eNB and is configured for scrambling of the scheduling information of the group data; the UE obtains the scheduling information of the MCCH signaling through an M-RNTI, the MCCH signaling is analyzed to obtain the group configuration information, the scheduling information of the group data is obtained through the group G-RNIT, and finally, the group data is obtained.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to the foundation of group communication in a kind of trunked communication system
And communication means.
Background technology
Trunked communication system, has become in addition to public mobile communication system vital the most
Personal communication system.The command scheduling being had due to it and emergent feature are (such as one-touch intercommunication, promptly
Calling and many group schedulings etc.), the most including that army, airport, public security, railway and electric power etc. are many
Individual important industry is widely used.
Although trunked communication system is in a particularly important status, but compared with public mobile communication, collection
Group communication system either in each of each side such as scale, standard, opening, compatibility, all also exists many
Problem.Along with the development of public network wireless communication technology, two-forty, low latency, low cost are proposed by people
The highest requirement.LTE (Long Term Evolution) project creates the most in this context.
This standard have employed OFDM (Orthogonal Frequency Division Multiplexing), MIMO
Radio Transmission Technology that (Multiple Input Multiple Output) etc. are advanced, flat network topology structure and complete
The system architecture of IP；Support bandwidth varying, higher peak rate and shorter propagation delay time.
Along with the development of communication technology, trunked communication system also develops to Digital Clustering from simulation cluster, arrowband
Cluster develops to broadband cluster.Broadband radio multi-media cluster refers to, based on broadband wireless communication technique, use
Multimedia service form, based on the private wireless communication system of command scheduling function, is called for short broadband cluster.
Just because of the two-forty of LTE system, the feature of low latency, group system based on LTE system is more come
More cause and pay close attention to widely.
In trunked communication system, group-calling service is important type of service, and it defines a group
The business model of call.That is: one group of user being defined as a call group, group member passes through half-duplex
Mode communicates, and is spoken by application right of speech, the communication mode that other group members listen to.Wherein
Non-right of speech user can listen to the speech from right of speech user or video in idle condition, and simultaneity factor also can
Notify other users current right of speech user profile.In a community, this group membership shares a down channel,
Network side is set up by beep-page message notice group call, is exhaled by group and sets up message and set up group and exhale wireless money
Source.Up channel needs to press ' PTT ' key and seizes use.
In the world, the most all it is inclined to using LTE as the basis of broadband trunking communication, so on 3GPP,
Group communication scheme based on MBMS framework is just studied, and MBMS framework based on multiple cell is
Completing in R9, R13 has started the MBMS PTM communication of multiple cell, all may be used in the basis of these frameworks
For group communication, and all it is inclined at the relevant discussion of 3GPP and uses current MBMS framework
Support group communication.
In existing B-TrunC standard technique, group configuration information notifies in clustering paging message,
And clustering paging message is periodically to send on the paging channel.But the list at ongoing 3GPP
In the PTM problem of community, may will not define the paging channel for group communication.So B-TrunC mark
Group information collocation method defined in standard will be unable to the group communication for using MBMS framework.Need
Foundation and the group number of the group communication of a kind of trunked communication system being applicable for use with MBMS framework are proposed
According to sending the method received.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes the foundation of group communication in a kind of trunked communication system and leads to
Letter method, the method includes:
Described trunked communication system uses MBMS framework, and eNB sends group by MCCH channel periodicity
Group configuration information, during transmission, MCCH channel uses dynamic dispatching mode, and eNB is sent by M-RNTI
The schedule information of MCCH signaling, described MCCH signaling is group configuration information, described group configuration letter
Breath includes that group identification and group G-RNTI, described group G-RNTI are that the group distributed by eNB is interim
Mark, for the scrambling of the schedule information of group data；
UE obtains the schedule information of described MCCH signaling by M-RNTI, resolves MCCH signaling and obtains
To described group configuration information, then the schedule information by described group G-RNTI acquisition group data,
Obtain group data eventually.
Preferably, eNB sends group configuration information by MCCH channel periodicity, and described periodicity is sent out
The cycle and the sub-frame information that send are configured by system broadcasts.Further, described subframe is seeking of community
Exhale subframe.
Preferably, described group identification is TMGI.
The present invention, based on MCCH channel configuration group configuration information, can make collection based on MBMS framework
Group communication system carries out group communication, allows the user in group can correctly obtain group configuration information and group
Data, and can make to lag and enter the user of group and obtain group configuration information as early as possible, reception group exhales data.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will be real to the present invention
The technical scheme executed in example is clearly and completely described.
The group communication method of the present embodiment is applicable for use with the trunked communication system of MBMS framework, eNB
Send group configuration information by MCCH channel periodicity, specifically comprise the following steps that
Step 1:UE application obtain group some configurations information, such as, group name,
Group identification or TMGI etc..
Step 2:eNB is broadcasted MCCH channel periodicity in system broadcasts and is sent group configuration information
Cycle, sub-frame information etc..Herein for reaching the purpose of saving power for terminal, subframe selects paging in community
Frame.
Step 3:UE obtains the broadcast message in system broadcasts about MCCH channel, obtains MCCH letter
Road sends cycle, the sub-frame information etc. that group's group configuration message is used.
Step 4:eNB sends group configuration information, MCCH during transmission by MCCH channel periodicity
Channel uses dynamic dispatching mode, and eNB sends the schedule information of MCCH signaling by M-RNTI, this
In MCCH signaling be group configuration information, group configuration information includes group identification and group G-RNTI
Deng.Group identification can be that (Temporary Mobile Group Identity, inside MBMS for TMGI
Identify a business, here one group of mark), it is also possible to it is the mark of other one groups of expression.Group
Group G-RNTI is group's temporary mark, eNB distribute, for the scrambling of the schedule information of group data.
Step 5:UE obtains the schedule information of MCCH signaling by M-RNTI.And resolve MCCH
Signaling, obtains the configuration information of group.Obtain the G-RNTI that oneself group is corresponding.
Step 6:UE, by corresponding G-RNTI, obtains the schedule information sending group data, and according to
This schedule information obtains group data information.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can
Completing with the hardware relevant by programmed instruction, aforesaid program can be stored in an embodied on computer readable and deposit
In storage media, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage
Medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CD.
Last it is noted that above example is only in order to illustrate technical scheme, rather than it is limited
System；Although the present invention being described in detail with reference to previous embodiment, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. the foundation of group communication and communication means in trunked communication system, described method includes:
Described trunked communication system uses MBMS framework；
ENB sends group configuration information by MCCH channel periodicity, and during transmission, MCCH channel uses
Dynamic dispatching mode, eNB sends the schedule information of MCCH signaling, described MCCH by M-RNTI
Signaling is group configuration information, and described group configuration information includes group identification and group G-RNTI, described
Group G-RNTI is the group's temporary mark distributed by eNB, for the scrambling of the schedule information of group data；
UE obtains the schedule information of described MCCH signaling by M-RNTI, resolves MCCH signaling and obtains
To described group configuration information, then the schedule information by described group G-RNTI acquisition group data,
Obtain group data eventually.
Method the most according to claim 1, it is characterised in that: eNB passes through MCCH channel cycle
Property send group configuration information, described periodicity send cycle and sub-frame information joined by system broadcasts
Put.
Method the most according to claim 2, it is characterised in that: described subframe is paging of community
Frame.
4. according to the method described in claims 1 to 3 any one, it is characterised in that: described group identification
It is TMGI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510090019.4A CN105992363A (en) | 2015-02-27 | 2015-02-27 | Group communication establishing and communication method in cluster communication system |
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| CN201510090019.4A CN105992363A (en) | 2015-02-27 | 2015-02-27 | Group communication establishing and communication method in cluster communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018201499A1 (en) * | 2017-05-05 | 2018-11-08 | 华为技术有限公司 | Method and device for use in determining paging |
| CN109429185A (en) * | 2017-08-30 | 2019-03-05 | 成都鼎桥通信技术有限公司 | MBSFN group signaling method and device |
| CN114208054A (en) * | 2019-08-02 | 2022-03-18 | 高通股份有限公司 | Scheduling broadcast or multicast communication for new radio |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018201499A1 (en) * | 2017-05-05 | 2018-11-08 | 华为技术有限公司 | Method and device for use in determining paging |
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| CN109429185A (en) * | 2017-08-30 | 2019-03-05 | 成都鼎桥通信技术有限公司 | MBSFN group signaling method and device |
| CN109429185B (en) * | 2017-08-30 | 2021-08-03 | 成都鼎桥通信技术有限公司 | MBSFN group signaling sending method and device |
| CN114208054A (en) * | 2019-08-02 | 2022-03-18 | 高通股份有限公司 | Scheduling broadcast or multicast communication for new radio |
| CN114208054B (en) * | 2019-08-02 | 2023-12-22 | 高通股份有限公司 | Method and apparatus for scheduling broadcast or multicast communications for new radios |
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