WO2015143767A1 - Procédé de communication basé sur un système de communication de partage distribué, et terminal - Google Patents

Procédé de communication basé sur un système de communication de partage distribué, et terminal Download PDF

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Publication number
WO2015143767A1
WO2015143767A1 PCT/CN2014/078153 CN2014078153W WO2015143767A1 WO 2015143767 A1 WO2015143767 A1 WO 2015143767A1 CN 2014078153 W CN2014078153 W CN 2014078153W WO 2015143767 A1 WO2015143767 A1 WO 2015143767A1
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Prior art keywords
user terminal
repeater
terminal
main
communication
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PCT/CN2014/078153
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English (en)
Chinese (zh)
Inventor
谢汉雄
郭義祥
徐燕
王刚
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海能达通信股份有限公司
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Publication of WO2015143767A1 publication Critical patent/WO2015143767A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and terminal for communicating based on a distributed trunking communication system.
  • a user terminal can only communicate on its assigned channel.
  • the channels in the communication system are fixedly assigned to specific users, and the system can only support a limited number of calling users.
  • the trunking communication system implements a multi-user shared multi-channel radio mobile communication system in accordance with a dynamic channel assignment manner, and the trunking communication system can solve the problem of the conventional wireless communication system.
  • the trunking communication system is generally composed of a terminal device, a base station, a control management center, and the like, and has functions of scheduling, group calling, priority calling, virtual private network, and roaming.
  • FIG. 2 is a schematic diagram of a trunking communication system in the prior art, which includes a plurality of walkie-talkie users, a control management center, a plurality of traffic channels, and a control channel. In the trunking communication system, the walkie-talkie user needs to be powered on and successfully registered in the cluster communication system to communicate.
  • the walkie-talkie When the walkie-talkie needs to communicate, firstly, a communication request is sent to the control management center on the control channel, and then waits for control management. After the center allocates a traffic channel to it, and the control management center allocates a traffic channel for it, the walkie-talkie can switch to the traffic channel for communication. It can be seen that in the trunking communication system, the walkie-talkie must take a long time to establish a call before communicating, and at the same time, the entire communication process must involve the control management center, and in the actual communication system, the control management center has a higher construction cost. This also leads to the problem of high construction cost of the trunking communication system.
  • a distributed trunking communication system with a relay station gradually replaces the trunking communication system with the control management center, and the relay station of the distributed trunking communication system replaces The status of the base station and control management center in the trunking communication system. How to use the resources of the current distributed trunking communication system to improve channel utilization and support more call users without increasing the cost is our most concerned issue.
  • the present invention provides a method and terminal for communication based on a distributed trunking communication system.
  • the channel utilization rate is improved and more call users are supported.
  • the present invention provides a method and a terminal for performing communication based on a distributed trunking communication system, and the present invention provides the following technical solutions:
  • a method for communicating based on a distributed trunking communication system where the distributed trunking communication system includes at least one station, the station includes at least one relay station and a plurality of user terminals, and each of the relay stations includes a plurality of logical channels.
  • the distributed trunking communication system allocates a primary relay station to user terminals in the site according to a preset allocation policy, and the method includes:
  • the user terminal monitors a primary repeater station that is pre-assigned to the user terminal;
  • any user terminal triggers communication
  • the channel communicates.
  • the distributed trunking communication system pre-allocates the main repeater station for the user terminal in the station, including:
  • the distributed trunking communication system allocates a primary relay station to different communication components according to a preset allocation policy, and each communication group includes at least two user terminals;
  • the user terminals in each of the communication groups are assigned on the same main repeater.
  • the user terminal uses any logical channel of the primary relay station of the user terminal as a primary channel.
  • the logical channel communicates, including:
  • the primary channel of the user terminal that triggers the communication is idle, and when the primary channel of the user terminal is idle, the primary channel is used for communication.
  • the method further includes: When the primary channel is not in an idle state, determining whether the primary relay station of the user terminal has other idle logical channels, and when the primary relay station of the user terminal has other idle logical channels, using the primary relay station Other idle logical channels communicate.
  • the method further includes:
  • the method further includes:
  • the user terminal detects a radio frequency signal sent by the main relay station of the user terminal; when the radio frequency signal is less than a preset threshold, the main relay station is woken up.
  • the method further includes:
  • the method further includes:
  • the user terminal uses the relay station to access the call.
  • the method further includes:
  • the present invention also provides a terminal for communicating based on a distributed trunking communication system, the terminal comprising:
  • a first monitoring module configured to monitor a primary relay station allocated by the distributed cluster communication system to the terminal according to a preset allocation policy
  • a first determining module configured to determine, when the terminal triggers communication, whether the primary repeater has an idle logical channel
  • a first communication module configured to use the space when the result of the first determining module is YES
  • the idle logical channel communicates.
  • the communication group composed of at least two user terminals is allocated to the main relay station according to a preset allocation policy
  • the terminals in each communication group are assigned on the same main repeater.
  • the terminal has a primary channel, and the primary channel is any logical channel of the primary relay station of the terminal,
  • the first determining module is specifically configured to determine, when the terminal triggers communication, whether the primary channel of the terminal is idle;
  • the first communication module is specifically a module that uses the primary channel to communicate when the result of the first determining module is YES.
  • the terminal further includes:
  • a second determining module when the result of the first determining module is negative, determining whether the primary repeating station of the user terminal has other idle logical channels
  • a second communication module configured to use another idle logical channel of the primary repeater to communicate when the result of the second determining module is negative.
  • the distributed trunking communication system further includes a free transfer station, the free transfer station includes at least one idle logical channel, and the terminal further includes:
  • a third communication module configured to use any idle logical channel of the free relay station to communicate when the primary relay station of the user terminal does not have an idle logical channel.
  • the terminal further includes:
  • the first detecting module is configured to detect a radio frequency signal sent by the main relay station of the terminal, and the wake-up module is configured to wake up the main relay station when the radio frequency signal is less than a preset threshold.
  • the terminal further includes:
  • a fourth communication module configured to use any idle logical channel of the free relay station to communicate when the wake-up module fails to wake up the primary repeater.
  • the terminal further includes:
  • the access module is configured to use the transit station to access a call when detecting, by the other intermediate station on the primary repeater of the terminal, the call of the terminal to forward the terminal.
  • the terminal further includes:
  • a second detecting module configured to detect, when the call of the access module ends, the terminal Whether there is an idle logical channel in the main repeater
  • the second monitoring module is configured to preferentially monitor the primary repeater when the result of the second detecting module is YES.
  • the present invention also provides a distributed trunking communication system, the distributed trunking communication system comprising at least one station, the station comprising at least one relay station and a plurality of user terminals, each relay station comprising a plurality of logical channels.
  • the system further comprises a main repeater station allocated to the user terminal according to a preset allocation policy.
  • the present invention provides a method for communicating based on a distributed trunking communication system, wherein the distributed trunking communication system includes at least one site, the site includes at least one relay station and a plurality of user terminals, and the relay station includes Multiple logical channels.
  • the distributed trunking communication system pre-allocates a primary relay station to a user terminal in the site according to a preset allocation policy, and the user terminal preferentially monitors a primary relay station that is pre-allocated to the user terminal; When the user terminal triggers communication, it is determined whether the primary relay station of the user terminal has an idle logical channel, and if so, the idle logical channel is used for communication.
  • the repeater station of the present invention is an inherent component of a distributed trunking communication system, and the repeater station includes multiple logical channels, which can support multiple calls at the same time, and all channels are less likely to be busy. , can support more call users and improve channel utilization.
  • FIG. 1 is a schematic diagram of a conventional walkie-talkie wireless communication system in the prior art
  • FIG. 2 is a schematic diagram of a cluster communication system with a control management center in the prior art
  • FIG. 3 is a flow chart of a method for communicating based on a distributed cluster communication system according to the present invention
  • FIG. 4 is a single-site distributed cluster communication system provided by the present invention
  • FIG. 5 is a schematic diagram of a multi-site distributed trunking communication system provided by the present invention.
  • FIG. 6 is a structural diagram of a terminal for performing communication based on a distributed trunking communication system according to the present invention. detailed description
  • FIG. 3 is a flowchart of a method for performing communication based on a distributed trunking communication system according to an embodiment, where the distributed trunking communication system includes at least one station, where the station includes at least one relay station and multiple user terminals.
  • Each repeating station includes a plurality of logical channels, and the method may include:
  • S301 The distributed trunking communication system allocates a primary repeater to a user terminal in the site according to a preset allocation policy.
  • the solution of the embodiment of the present invention is implemented by using a distributed cluster communication system, which may be a single-station distributed cluster communication system or an IP-connected multi-station distributed cluster communication system, that is, the distributed cluster.
  • the communication system may include a single site or multiple sites.
  • the user terminal described in this embodiment may be a walkie-talkie.
  • the relay station and the user terminal of the distributed trunking communication system can store the allocation policy, and the allocation policy can be a correspondence between the transit station and the user terminal.
  • the user terminal and the relay station can respectively establish a correspondence according to the respective stored allocation policies, that is, determine the main relay station for the user terminal.
  • the allocation of the primary repeater of the user terminal can be realized by storing only the allocation policy in the relay station of the distributed trunking communication system. That is to say, the user terminal does not need to store the allocation policy.
  • the user terminal may receive a message broadcast by the relay station, and when the user terminal receives the allocation policy associated with the user terminal, the allocation policy may be stored in the The user terminal, and in turn, the transfer station and the user terminal can complete the assignment of the primary repeater according to the respective stored allocation policies.
  • Each station in the distributed trunking communication system includes at least one channel frequency point, and each channel frequency point can serve as a relay station, and the distributed trunking communication system pre-sets the user terminal in the station according to a preset allocation policy. Assign the main repeater.
  • the pre-set allocation policy is a balanced allocation strategy, that is, the number of allocated user terminals on each repeater is as close as possible.
  • a channel frequency point can be divided into multiple logical channels (also known as time slots)
  • a specific channel frequency point can be divided into several logical channels determined by a protocol used by actual communication, such as DMR (Time Division Multiple Access Dual) Slot channel) Protocol, each channel can be divided into two logical channels.
  • each channel can be divided into four logical channels.
  • the logical channel divided by the channel frequency is specifically used for communication of the user terminal.
  • the logical channel is in a busy state at this time.
  • the logic is The channel is in an idle state.
  • S302 The user terminal monitors a primary repeater station that is pre-assigned to the user terminal.
  • the user terminal locked with any one of the distributed trunking communication systems is assigned a relay station as the primary relay station in advance.
  • the main repeater includes multiple logical channels. The user terminal preferentially listens to the main repeater of the user terminal.
  • the primary relay station can be equally allocated to different communication groups according to a preset equalization allocation policy, and at the same time, the user terminals included in each communication group are pre-allocated in the same primary relay station. on.
  • each communication group includes at least two user terminals.
  • the preset equalization allocation policy may be to allocate different main transfer stations for each communication group; in addition, when the number of communication groups is greater than the number of the transfer stations, The preset balanced allocation strategy may be that the number of distribution groups allocated on each primary repeater is not much different.
  • the user terminal when any one of the user terminals triggers communication, the user terminal first determines whether there is an idle logical channel of the primary relay station of the user terminal, and when there is an idle logical channel on the primary relay station, the primary is used.
  • the idle logical channel of the repeater communicates.
  • Table 1 is a 24-bit CACH information structure diagram in the radio frequency signal, where AT (Access Type) is used to indicate whether the state of the logical channel is busy or idle; TC (Time Division Multiple Access Channel, TDMA Channel) A slot number indicating a time division multiple access channel, where the slot number is a logical channel number, used to indicate Specifically, which one of the plurality of logical channels, LCSS (Link Control Start/Stop) indicates the start or end of the communication.
  • AT Access Type
  • TC Time Division Multiple Access Channel, TDMA Channel
  • TC Time Division Multiple Access Channel, TDMA Channel
  • LCSS Link Control Start/Stop
  • the specific determination process of determining whether the primary repeater of the user terminal has an idle logical channel may be as follows: Each channel includes two logical channels.
  • the radio frequency signal sent by the main relay station of the user terminal includes two CACH information, which respectively correspond to two logical channels included in the main relay station, and when the strength of the radio frequency signal is greater than a preset threshold, The user terminal can determine whether there is an idle logical channel in the main repeater according to the value of the AT bit in the CACH information.
  • the AT bit is set to 1
  • the repeater is relaying voice communication or data transmission initiated by other terminals than the user terminal.
  • the AT bit is set to 0, it indicates that the status of the indicated logical channel is idle, that is, the repeater does not transfer any voice. Communication or data transmission, but an idle frame is being sent to indicate that the user terminal can Since communication.
  • the AT bits in both CACH information are 1, it means that the primary repeater has no idle logical channel available. If one of the two bits in the CACH information is not 1, it indicates that the primary repeater is available. Idle logical channel; after the user terminal determines that there is an idle logical channel in the primary relay station according to the AT bit in the CACH information, further, the user terminal can determine which logical channel state is based on the TC bit in the corresponding CACH information. If idle, the user terminal communicates using the idle logical channel.
  • the logical channel included in the primary relay station of the user terminal may be divided into a primary channel and a secondary channel, where one primary relay station corresponds to one primary channel, and the other logical channels are referred to as secondary channels.
  • the user terminal triggers communication, first determining whether the primary channel in the primary relay station of the user terminal is in an idle state, and if the primary channel is in an idle state, the user terminal uses the primary channel to communicate; otherwise, determining Whether the primary relay station of the user terminal has an idle auxiliary channel, and the user terminal uses an idle auxiliary channel for communication.
  • members of the same communication group are usually assigned to the same relay station, and the plurality of logical channels included in the relay station are respectively used as the primary channel.
  • any one of the relay stations including the idle logical channel is determined as the free transit station of the distributed trunking communication system.
  • Each distributed trunking communication system includes only one free repeater station, and the free repeater station includes at least one idle logical channel.
  • the user terminal When the primary relay station of the user terminal does not have an idle logical channel, the user terminal communicates using the idle logical channel of the free relay station, and the use of the free relay station can further support more call users.
  • the present invention can support not only a single site system but also a multi-site system.
  • the present invention only requires the use of IP to connect the repeaters in different sites.
  • the user terminal detects whether the radio frequency signal sent by the main relay station is less than a preset threshold. If the radio frequency signal sent by the main relay station is less than the preset threshold, the main transit station enters a sleep state. The user terminal sends a wake-up signal to wake up the main repeater. The user terminal starts the wake-up timer while transmitting the wake-up signal, and the wake-up timer is recorded as the first timer. If the feedback signal sent by the main repeater is received before the first timer expires, the main terminal is indicated. The relay station is successfully awake, wherein the feedback signal indicates the idle logical channel available to the user terminal, and the user terminal uses the idle logical channel to communicate, and the feedback signal is the idle frame.
  • the feedback signal sent by the primary repeater is not received before the first timer expires, it indicates that the user terminal fails to wake up. At this point, the user terminal can communicate using any of the free logical channels of the free repeater.
  • the user terminal may send a wake-up signal to wake up the free repeater, and after the free repeater is successfully awake, the user terminal uses the free repeater Any idle logical channel communicates.
  • the user terminal When all of the logical channels in the distributed trunking communication system are in a busy state, the user terminal preferentially listens to the primary repeater of the user terminal.
  • the user terminal when the user terminal is listening to its own primary repeater, it may detect that another repeater forwards the call of the user terminal. At this time, the user terminal may use the repeater that is forwarding the call. The call.
  • the user terminal may detect whether its own primary relay station has an idle logical channel, and if so, the user terminal preferentially listens to the primary relay station.
  • the following is an example of single-site cluster communication with DMR time division multiple access, and a method based on communication is specifically introduced. Referring to FIG. 4, FIG. 4 is a single-site structure diagram, and the following is a method for communication based on the system in FIG.
  • each walkie-talkie user When walkie-talkie users are active within the coverage of a single site, each walkie-talkie user has priority to listen to their own primary repeater.
  • the main repeater assigned to the walkie-talkies G1, G2, and G3 is the F1 frequency point (the frequency point is the repeater), and the main repeater assigned to the walkie-talkies G4, G5, and G6 is the F2 frequency point.
  • the main repeater assigned to the walkie-talkies G7, G8, and G9 is the F3 frequency point.
  • the single-site distributed trunking communication system can support 6 calls simultaneously in a single station with 3 channels, compared with the existing one frequency point, which can only allocate two calls for the intercom. It can support 6-way calls at the same time, and the probability that all channels are busy is small, so the possibility of calls being accessed is greatly increased, and the number of users supporting calls is also increased.
  • FIG. 5 is a structural diagram of a multi-site distributed cluster communication system, A method of communicating based on the system in FIG.
  • Station 1 of Fig. 5 includes two frequency points F1 and F2, and their logical channels are time slot 1, time slot 2, time slot 3, and time slot 4, respectively.
  • Site 2 includes two frequency points, F3 and F4, whose logical channels correspond to the logical channel time slots of station 1. If a group of users frequently moves between more than two sites, it will assign different primary repeaters at different sites. For example, the group 1 user is the F1 in the main transit station of the site 1, and the main transit station in the site 2 is the F3. When the group 1 user is active on the site 1, the main transit station F1 is preferentially monitored, and when it moves to the site 2, The primary repeater that listens first is switched to F3.
  • each site's logical channel can support a single call.
  • Walkie-talkie user A initiates a group call of call group 1 in slot 1 of station 1.
  • Group members in Fl and group members moving to F3 will receive calls.
  • the walkie-talkie B initiates a call, if the time slot 1 is already occupied, the walkie-talkie B will use the idle time slot 2 to make a call.
  • time slot 3 and time slot 4 can also be used to support different calls.
  • the newly-on user can search for the activity of interest by receiving the station broadcast message, for example: the member of group 1 is powered on at the F4 frequency, and the call of the time slot 1 in the forwarding group 1 is detected by receiving the broadcast message of the station, group 1 The member switches to the F3 frequency point to access the call of group 1 in time slot 1.
  • FIG. 6 is a structural diagram of a terminal for performing communication based on a distributed trunking communication system according to an embodiment, where the distributed trunking communication system includes at least one site, and the site includes at least one relay station and a plurality of terminals, the relay station includes a plurality of logical channels, the terminal has an assigned primary relay station, and the terminal includes a first monitoring module 601, a first determining module 602, and a first communication module 603;
  • the first monitoring module 601 is configured to monitor the primary relay station allocated by the distributed cluster communication system to the terminal according to a preset allocation policy
  • the first determining module 602 is configured to determine, when the terminal triggers communication, whether the primary relay station has an idle logical channel
  • the first communication module 603 is configured to perform communication by using the idle logical channel when the result of the first determining module is YES.
  • the communication group consisting of at least two user terminals distributes the primary relay station according to a preset equalization allocation policy; meanwhile, the terminals in each communication group are pre-assigned on the same main transit station.
  • the terminal has a primary channel
  • the primary channel is any logical channel of a primary relay station of the terminal
  • the first determining module is specifically configured to determine, when the terminal triggers communication, whether the primary channel of the terminal is idle;
  • the first communication module is specifically a module that uses the primary channel to communicate when the result of the first determining module is YES.
  • the terminal may further include:
  • a second determining module when the result of the first determining module is negative, determining whether the primary repeating station of the user terminal has other idle logical channels
  • a second communication module configured to use the primary when the result of the second determining module is negative
  • the other idle logical channels of the repeater communicate.
  • the distributed trunking communication system further includes a free transfer station, the free transfer station includes at least one idle logical channel, and the terminal further includes:
  • a third communication module configured to use any idle logical channel of the free relay station to communicate when the primary relay station of the user terminal does not have an idle logical channel.
  • the terminal may further include:
  • the first detecting module is configured to detect a radio frequency signal sent by the main relay station of the terminal, and the wake-up module is configured to wake up the main relay station when the radio frequency signal is less than a preset threshold.
  • the terminal may further include:
  • a fourth communication module configured to use any idle logical channel of the free relay station to communicate when the wake-up module fails to wake up the primary repeater.
  • the terminal further includes:
  • the access module is configured to use the transit station to access a call when detecting, by the other intermediate station on the primary repeater of the terminal, the call of the terminal to forward the terminal.
  • the terminal may further include:
  • a second detecting module configured to detect, when the call of the access module ends, whether the primary repeater of the terminal has an idle logical channel
  • the second monitoring module is configured to preferentially monitor the primary repeater when the result of the second detecting module is YES.
  • the present invention also provides a distributed trunking communication system, wherein the distributed trunking communication system includes at least one station, the station includes at least one relay station and a plurality of user terminals, and each of the relay stations includes multiple logical channels. .
  • the system may further include a primary repeater station allocated to the user terminal according to a preset allocation policy.
  • the present invention provides a method and a terminal for communicating based on a distributed trunking communication system, wherein the distributed trunking communication system includes at least one station, the station includes at least one relay station and a plurality of user terminals, and the relay The station includes multiple logical channels.
  • the distributed trunking communication system pre-allocates a main relay station to a user terminal in the station according to a preset allocation policy, and the user terminal listens to the main relay station pre-allocated by the user terminal;
  • the user terminal triggers the communication, it is determined whether the primary relay station of the user terminal that triggers the communication has an idle logical channel, and when the primary relay station of the user terminal has an idle logical channel, the idle logical channel is used for communication.
  • the repeater station of the present invention is an inherent component of a distributed trunking communication system, and the repeater station includes multiple logical channels, which can support multiple calls at the same time, and all channels are less likely to be busy. , can support more call users and improve channel utilization.

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Abstract

La présente invention concerne un procédé de communication reposant sur un système de communication de partage distribué, et un terminal. Le système de communication de partage distribué comprend au moins une station, la station comprend au moins un répéteur et de multiples terminaux utilisateur, et chacun des répéteurs comprend de multiples canaux logiques. Le système de communication de partage distribué pré-attribue un répéteur principal à des terminaux utilisateur dans la station selon une politique d'attribution prédéfinie, et les terminaux utilisateur surveillent de préférence le répéteur principal pré-attribué aux terminaux utilisateur; et lorsqu'un terminal utilisateur quelconque déclenche une communication, il est déterminé si le répéteur principal du terminal utilisateur possède un canal logique inactif, et si c'est le cas, la communication est effectuée en utilisant le canal logique inactif. Le répéteur dans la présente invention est un composant inhérent du système de communication de partage distribué ; le répéteur comprend de multiples canaux logiques et peut simultanément prendre en charge des appels multiples ; et il est moins probable que tous les canaux soient dans un état occupé, de sorte que plus d'utilisateurs qui appellent peuvent être pris en charge, ce qui permet d'améliorer le taux d'utilisation des canaux.
PCT/CN2014/078153 2014-03-26 2014-05-22 Procédé de communication basé sur un système de communication de partage distribué, et terminal WO2015143767A1 (fr)

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CN109362095B (zh) * 2018-12-13 2021-10-08 成都中航信虹科技股份有限公司 数据交互方法、装置及集群基站
CN109769215B (zh) * 2019-03-19 2021-07-16 福建科立讯通信有限公司 一种数字集群与模拟集群的共用频点资源系统及方法
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