WO2013120390A1 - Procédé et dispositif de transmission d'informations d'indication de priorité de transmission - Google Patents

Procédé et dispositif de transmission d'informations d'indication de priorité de transmission Download PDF

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Publication number
WO2013120390A1
WO2013120390A1 PCT/CN2012/088128 CN2012088128W WO2013120390A1 WO 2013120390 A1 WO2013120390 A1 WO 2013120390A1 CN 2012088128 W CN2012088128 W CN 2012088128W WO 2013120390 A1 WO2013120390 A1 WO 2013120390A1
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WO
WIPO (PCT)
Prior art keywords
cluster
indication information
voice
control channel
terminal
Prior art date
Application number
PCT/CN2012/088128
Other languages
English (en)
Chinese (zh)
Inventor
谌丽
焦斌
艾明
徐晖
李翔
Original Assignee
电信科学技术研究院
大唐移动通信设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 电信科学技术研究院, 大唐移动通信设备有限公司 filed Critical 电信科学技术研究院
Publication of WO2013120390A1 publication Critical patent/WO2013120390A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the present invention relates to a trunking communication technology, and in particular, to a method and an apparatus for transmitting voice rights indication information. Background technique
  • the trunking communication system uses half-duplex communication, and the Push To Talk (PTT) key controls the acquisition and release of the channel during operation, and the channel utilization rate is high, and the call connection is fast; The user shares the downlink channel and has high resource utilization. Further, the trunking communication system can guarantee the privacy and security of the call through voice encryption; preferentially allocate channels for high-priority users or services; ensure communication under emergency through fault weakening function; realize flexible multi-level grouping through dynamic reorganization Dispatching command function.
  • PTT Push To Talk
  • the current trunking communication system has been developed into a broadband trunking communication system stage. Based on the most advanced wireless transmission technologies, such as Long Term Evolution (LTE) technology, the functions and technologies of the trunking communication system can be realized.
  • the broadband trunking communication system has the characteristics of diversified service types, diverse transmission modes, large bandwidth, and high transmission rate.
  • the supported services include voice, data, and video.
  • the transmission modes include unicast, group call, and multicast. Among them, unicast works in full-duplex mode, and group calls and multicasts work in half-duplex mode.
  • the performance characteristics of the broadband trunking communication system are: high network reliability, strong fault weakening and anti-destructive capability; support for large traffic capacity in hotspots and hotspots; short call setup time, single system call setup time less than 500ms; High network security, support end-to-end encryption; wide coverage, low network construction costs.
  • call setup time, network reliability and security are the three most important technical indicators.
  • the group call/multicast process of the trunking communication system only one terminal in the group can initiate transmission at a time. This is called a voice party. Other terminals in the group can only receive group call/multicast data through the network.
  • the network side needs to notify all the terminal rights indication information in the group, including the right to use the voice and the idleness of the voice.
  • the right to occupy the voice indicates that one terminal in the group is the voice party and can initiate the transmission.
  • the other terminals in the group can only receive the downlink transmission when the call rights are occupied.
  • Some terminals with a particularly high priority can initiate the call preemption process. .
  • the idle call authority indicates that all the terminals in the group do not have the right to authorize the network. At this time, the legal terminal in the group can initiate the call right application to obtain the call right.
  • the voice right indication information is important information that the network side needs to transmit to all terminals in the group.
  • T-MCCH Trunking Multicast Control Channel
  • the multicast control information of the cluster is transmitted, including the trunking multicast traffic channel (T-MTCH) scheduling information, service information, group information, and the like.
  • T-MTCH trunking multicast traffic channel
  • a T-MCCH carries control information or scheduling information of multiple groups.
  • a T-MCCH can only correspond to a Multimedia Broadcast multicast service Single Frequency Network (MBSFN) area i or.
  • MMSFN Multimedia Broadcast multicast service Single Frequency Network
  • T-MTCH transmits cluster service data.
  • a T-MTCH only carries data carried by one service.
  • T-MCH Trunking Multicast Channel
  • the broadcast cluster transmits control information and data.
  • the cluster carries the signaling and data.
  • the T-MCCH includes control information of one or more groups and configuration and scheduling information of the T-MTCH;
  • T-MTCH is based on T-MCCH scheduling and other scheduling commands
  • the actual transmission of the T-MCCH may be indicated by a Physical Downlink Control Channel (PDCCH) scheduling command;
  • PDCCH Physical Downlink Control Channel
  • the T-MCCH can be retransmitted periodically, and the retransmission can also be scheduled by the PDCCH.
  • the terminal can receive the cluster transmission in the idle state (the point-to-point transmission channel is not established with the cell) or the connected state (the point-to-point transmission channel is established with the cell).
  • the voice right indication information is the indication information initiated by the network side high layer instead of the base station. If the traditional non-access stratum (NAS) message is used to send the voice right indication information to the terminal, the terminal belonging to the same cluster needs to be After entering the connection state, the base station transparently transmits the NAS message carrying the voice right indication information to the terminal according to the point-to-point manner. This transmission mode is not conducive to the rational use of resources, and the terminal has a corresponding large amount of overhead when entering the connection state. Increase system load. Summary of the invention
  • Embodiments of the present invention provide a method and a device for transmitting voice rights indication information, which are used to reasonably utilize resources of a trunking communication system to reduce system load.
  • a method for transmitting voice instruction information includes:
  • the base station carries the right indication information in the cluster control channel message;
  • the base station uses the multicast mode to send the cluster control channel message carrying the voice right indication information to all the terminals in the cluster, so that each terminal performs the corresponding operation according to the received voice right indication information.
  • a method for transmitting voice instruction information includes:
  • the terminal receives the cluster control channel message that is sent by the base station in the multicast mode, and the terminal obtains the voice right indication information carried by the cluster control channel message, and performs corresponding operations according to the voice right indication information.
  • a transmission device for voice right indication information comprising:
  • control unit configured to carry the right indication information in the cluster control channel message
  • the communication unit is configured to send, by using a multicast mode, a cluster control channel message that carries the right indication information to all terminals in the cluster, so that each terminal performs a corresponding operation according to the received voice right indication information.
  • a transmission device for voice right indication information comprising:
  • a communication unit configured to receive a cluster control channel message that carries a call right indication information that is sent by the base station by using a multicast manner;
  • the processing unit is configured to obtain the voice right indication information carried by the cluster control channel message, and perform a corresponding operation according to the voice right indication information.
  • the base station transmits the voice right indication information to all the terminals in the cluster through the cluster control channel message, so that the transmission reliability of the voice right indication information is improved while the cell interference is reduced, and the terminal does not need to enter the connection.
  • the state while rationally utilizing the system resources, saves the system overhead of the terminal entering the connection state, and effectively reduces the system load.
  • 1 is a schematic diagram of channel relationships in a trunking communication system in the prior art
  • FIG. 2 is a schematic diagram of transmission rules of a cluster communication system in the prior art
  • FIG. 3 is a schematic structural diagram of a base station in an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal function according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of transmitting a right indication information to a terminal by a base station according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a base station transmitting voice right indication information to a terminal according to an embodiment of the present invention
  • FIG. 7 to FIG. 9 are diagrams showing an example of interaction between a base station and a terminal in a process of transmitting voice right indication information according to an embodiment of the present invention. detailed description
  • the base station uses the cluster control channel message to carry the voice right indication information, and sends the voice right indication information to all the terminals in the cluster in a multicast manner, so that the terminal can receive the voice right indication information in the idle state, thereby effectively reducing the System load.
  • the base station includes a communication unit 30 and a control unit 31, where the control unit 31 is configured to carry the voice right indication information in the cluster control channel message;
  • the communication unit 30 is configured to send a cluster control channel message carrying the right to the right indication information to all the terminals in the cluster by using the multicast mode, so that each terminal performs a corresponding operation according to the received right instruction information.
  • the terminal communication unit 40 and the processing unit 41 are configured to receive, by the communication unit 40, a cluster control channel message that carries the voice right indication information sent by the base station in a multicast manner;
  • the processing unit 41 is configured to obtain the voice right indication information carried by the cluster control channel message, and perform a corresponding operation according to the voice right indication information.
  • the specific process for the base station to transmit the right indication information to the terminal is as follows:
  • Step 500 The base station carries the right indication information in the cluster control channel message.
  • the voice right indication information is notified to the base station by the network side high layer, and the base station obtains the voice right indication information indicated by the upper layer through the Multi-cell/multicast Coordination Entity (MCE).
  • MCE Multi-cell/multicast Coordination Entity
  • the base station can use an independent
  • the cluster control channel message carries the voice right indication information.
  • SpeakingRightlndication is used as the voice indication information and is carried in the trunk control channel T-MCCH:
  • SpeakingRightList :: SEQUENCE (SIZE (1.. maxTrunkingSessionRec))
  • I is used to indicate the group ID to which the group call/multicast session that is performing downlink transmission belongs.
  • I is used to indicate the right to speak. When it does not appear, it indicates that the corresponding group call is idle.
  • the terminal may obtain the SpeakingRightlndication field carried in the message transmitted by the T-MCCH, where the group identifier of the cluster to which the current session belongs and the voice right indication are obtained in the SpeakingRightlndication field.
  • Step 510 The base station sends a cluster control channel message carrying the right indication information to all the terminals in the cluster by using the multicast mode, so that each terminal performs a corresponding operation according to the received voice right indication information.
  • the base station usually broadcasts the cluster control channel message to the terminals in all the clusters by using the multicast mode, and the bearer control information is carried in the voice control information.
  • the terminal usage is indicated to each terminal in the cluster.
  • the lbit can be used to indicate the right to use the voice.
  • the default value can be used to indicate that the right is idle; correspondingly, the terminal confirms in the SpeakingRightlndication
  • the call right indication of the cluster to which the current session belongs in the field is 1 bit (bit)
  • the right to use is determined, and when the voice right indication of the cluster to which the current session belongs in the SpeakingRightlndication field is confirmed to be the default value, the right is determined to be idle.
  • the base station on the network side can directly send the voice right indication information to the terminal in the cluster through the cluster control channel message.
  • the terminal determines the current right of the right to belong to the cluster.
  • Receiving the downlink transmission sent by the voice party if it is determined that the current call right of the cluster to which it belongs is idle, A call request is initiated by a NAS message when a transmission needs to be sent.
  • the terminal only initiates a call request when it needs to obtain the right to speak. It is not an inevitable process, so it is indicated by a dotted line.
  • the terminal when the base station notifies the terminal of the right to use the right by using the right-of-rights indication message that is carried in the cluster control channel message, the terminal can only receive the downlink transmission: as follows (assuming UE1 is subordinate to the cluster 1): e B side:
  • the eNB receives the right occupation information sent by the network-side high-level entity (for example, MCE).
  • MCE network-side high-level entity
  • the eNB sends the right indication information in a multicast manner at the T-MCCH predefined resource location, indicating that the group 1 is occupied by the right.
  • Bl UE1 monitors and receives the T-MCCH, and determines the right of the group 1 call.
  • B2 UE1 receives the downlink transmission of the party in group 1 and continues to listen to the T-MCCH.
  • the terminal with the highest priority can initiate the call preemption process, as follows: In cluster 1).
  • the eNB receives the right occupation information sent by the network-side high-level entity (for example, MCE).
  • MCE network-side high-level entity
  • the eNB sends the right indication information in the form of multicast in the T-MCCH predefined resource location, indicating that the group 1 is occupied by the right.
  • Dl UE1 listens to and receives the T-MCCH, and determines the right to occupy the group 1.
  • D2 UE1 receives the downlink transmission of the right party in group 1, and triggers the right preemption process when the session needs to be initiated and has the right to preempt.
  • the terminal when the base station informs the terminal that the right is idle through the right indication message that is carried in the cluster control channel message, the terminal initiates the call right application process when the session needs to be initiated, as follows (assuming that the UE1 is dependent) In cluster 1).
  • the eNB receives the call idle information sent by the network side high layer entity (eg, MCE).
  • the network side high layer entity eg, MCE
  • the eNB sends the right indication information in a multicast manner at the T-MCCH predefined resource location, indicating that the group 1 voice is idle.
  • Fl UE1 monitors and receives the T-MCCH, and determines that the group 1 voice is idle;
  • the base station transmits the voice right indication information to all the terminals in the cluster by using the cluster control channel message, thereby improving the transmission reliability of the voice right indication information while reducing the cell interference.
  • the terminal does not need to enter the connection state, thereby saving the system overhead of the terminal entering the connection state while effectively utilizing the system resources, thereby effectively reducing the system load.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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

Abstract

La présente invention concerne la technologie de communication en grappe, et concerne plus particulièrement un procédé permettant de transmettre des informations d'indication de priorité de transmission. La solution selon l'invention consiste en : une station de base renfermant des informations d'indication de priorité de transmission dans un message de canal de commande de grappe, et transmettant au moyen d'un schéma de multidiffusion à tous les terminaux à l'intérieur d'une grappe le message de canal de commande de grappe renfermant les informations d'indication de priorité de transmission, ce qui amène les terminaux à exécuter des opérations correspondantes sur la base des informations d'indication de priorité de transmission reçues. De cette manière, les interférences de cellule sont réduites, tandis qu'en même temps, la fiabilité de transmission des informations d'indication de priorité de transmission est améliorée, et la nécessité pour un terminal d'entrer dans un état connecté est évitée, ainsi, tant que les ressources de système sont utilisées raisonnablement, le surdébit de système du terminal entrant dans un état connecté est conservé, ce qui permet de réduire efficacement la charge du système.
PCT/CN2012/088128 2012-02-13 2012-12-31 Procédé et dispositif de transmission d'informations d'indication de priorité de transmission WO2013120390A1 (fr)

Applications Claiming Priority (2)

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CN2012100317756A CN102547596A (zh) 2012-02-13 2012-02-13 一种话权指示信息的传输方法及装置
CN201210031775.6 2012-02-13

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CN102547596A (zh) * 2012-02-13 2012-07-04 电信科学技术研究院 一种话权指示信息的传输方法及装置
CN103796172B (zh) * 2012-11-02 2019-01-22 中兴通讯股份有限公司 基于lte的宽带集群系统的话权申请实现方法
CN104185300A (zh) * 2013-05-20 2014-12-03 电信科学技术研究院 一种邻近组通信方法及终端
CN104982048B (zh) * 2013-12-18 2019-04-23 华为技术有限公司 一种集群通信应用服务器、演进型基站、系统及资源分配的方法
CN106792574B (zh) * 2015-11-19 2019-11-22 普天信息技术有限公司 一种基于终端到终端的集群直接通信方法
CN106937255A (zh) * 2015-12-31 2017-07-07 北京信威通信技术股份有限公司 传输处理方法及装置

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