WO2017118115A1 - Pdt同频同播组建立方法、通信方法、相关装置及系统 - Google Patents

Pdt同频同播组建立方法、通信方法、相关装置及系统 Download PDF

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Publication number
WO2017118115A1
WO2017118115A1 PCT/CN2016/100340 CN2016100340W WO2017118115A1 WO 2017118115 A1 WO2017118115 A1 WO 2017118115A1 CN 2016100340 W CN2016100340 W CN 2016100340W WO 2017118115 A1 WO2017118115 A1 WO 2017118115A1
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Prior art keywords
base station
pdt
primary base
frequency simulcast
frequency
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PCT/CN2016/100340
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English (en)
French (fr)
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韩慧
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中兴通讯股份有限公司
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Publication of WO2017118115A1 publication Critical patent/WO2017118115A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • 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

Definitions

  • the present disclosure relates to the field of communications, for example, to a PDT co-frequency simulcast group establishing method, a communication method, a related device, and a system.
  • a professional digital trunking (PDT) system different base stations usually work with different frequencies, that is, when the terminal is in the service, if cross-base station handover is to be performed, cross-frequency switching is required. This has a large impact on voice quality, and it is difficult to meet the requirements of groups with higher scheduling voice quality requirements.
  • the same frequency simulcast technology can solve this problem. For some specific requirements, such as when there are a large number of users at a certain time in a certain period of time, due to the control channel capacity limitation of the PDT system, the same frequency simulcast can also be used.
  • the same frequency simulcast system in the related art may include a control center and one or more remote base stations respectively connected to the control center through a link, and the connection relationship between the control center and the remote base station is fixed and cannot be changed if the control center appears.
  • the failure may cause the entire same-frequency simulcast system to be unusable, and may cause the control center to be unable to directly communicate with the terminal, so that the entire same-frequency simulcast system cannot perform the same-frequency simulcast call.
  • the present disclosure provides a PDT co-frequency simulcast group establishment method, a communication method, a related device and a system, which can solve the problem that the entire same-frequency simulcast system cannot be used due to a failure of a control center in the same-frequency simulcast system.
  • a PDT co-frequency simulcast group establishment method including: configuring one of all base stations of a PDT co-frequency simulcast group to be a PDT same-frequency simulcast group
  • the primary base station the remaining base stations are configured as the secondary base stations of the PDT co-frequency simulcast group; the configuration of the PDT intra-frequency simulcast group is notified to the primary base station and the secondary base station in the PDT intra-frequency simulcast group; the primary base station is the same as the PDT
  • the control center of the broadcast group the primary base station is set to communicate with the secondary base station within the PDT intra-frequency simulcast group and the terminal within the coverage of the primary base station.
  • a method for communicating between PDT intra-frequency simulcast groups including: receiving, by a primary base station of a PDT intra-frequency simulcast group, first signaling from a core network, One signaling is sent to all secondary base stations in the PDT intra-frequency simulcast group and all terminals within the coverage of the primary base station;
  • the PDT intra-frequency simulcast group includes a primary base station and a plurality of secondary base stations, and the primary base station is a control center of the PDT intra-frequency simulcast group.
  • the method for communicating between the PDT co-frequency simulcast groups further includes: when the primary base station receives the second signaling from the multiple base stations and the terminals within the coverage of the primary base station, the first received The second signaling that carries the same timestamp in the frame header is sent to the core network, and the second signaling that carries the same timestamp in the remaining frame headers is discarded.
  • the method for communicating between the PDT and the same-frequency simulcast group further includes: when the primary base station receives the same-frequency simulcast group call, sending a call setup request to the core network; after the core network allows the call to be established, The base station is notified by the core network to establish a call from the base station in the PDT intra-frequency simulcast group.
  • the method for communicating between the PDT and the same-frequency simulcast group further includes: after the primary base station receives the media stream from the terminal or the base station within the coverage of the autonomous base station, according to the frame header of the media stream A frame.
  • Received Signal Strength Indication selects an A frame, adds an identifier in the tunnel header to the selected A frame, and reads subsequent frames from the corresponding tunnel according to the identifier in the tunnel header.
  • a PDT co-frequency simulcast group establishing apparatus including: a configuration module, configured to set one of all base stations of a professional digital trunk PDT co-frequency simulcast group to be assembled
  • the primary base station configured as the PDT co-frequency simulcast group, and the remaining base stations are configured as the secondary base stations of the PDT intra-frequency simulcast group
  • the first notification module is configured to notify the PDT intra-frequency simulcast group of the configuration of the PDT intra-frequency simulcast group
  • an apparatus for communicating between PDT intra-frequency simulcast groups including: a first sending module, configured to receive by a primary base station of a professional digital trunking PDT co-frequency simulcast group The first signaling from the core network sends the first signaling to all the secondary base stations in the PDT intra-frequency simulcast group and all the terminals in the coverage of the primary base station; wherein, the PDT intra-frequency simulcast group includes a primary base station and A plurality of slave base stations, the master base station is a control center of the PDT intra-frequency simulcast group.
  • the device for communicating between the PDT and the same-frequency simulcast group further includes: a second sending module, configured to: when the primary base station receives the second signaling from the multiple base stations and the terminals in the coverage of the primary base station The second signaling that carries the same timestamp in the first received frame header is sent to the core network, and the second signaling that carries the same timestamp in the remaining frame headers is discarded.
  • a second sending module configured to: when the primary base station receives the second signaling from the multiple base stations and the terminals in the coverage of the primary base station The second signaling that carries the same timestamp in the first received frame header is sent to the core network, and the second signaling that carries the same timestamp in the remaining frame headers is discarded.
  • the device for communicating between the PDT and the same-frequency simulcast group further includes: a third sending module, configured to send a call setup request to the core network when the primary base station receives the same-frequency simulcast group call; and, The second notification module is configured to notify the PDT co-frequency through the core network after the core network allows the call to be established.
  • the slave base station calls within the multicast group are established.
  • the device for communicating between the PDT and the same-frequency simulcast group further includes: a selecting module, configured to: after the primary base station receives the media stream from the terminal or the base station within the coverage of the autonomous base station, according to the A-frame of the media stream
  • the received signal strength carried in the frame header indicates that the RSSI selects the A frame, and the identifier in the tunnel header is added to the selected A frame.
  • the reading module is configured to read the subsequent frame from the corresponding tunnel according to the identifier in the tunnel header.
  • a PDT co-frequency simulcast system is further provided, where the system includes multiple PDT intra-frequency simulcast groups, where each PDT intra-frequency simulcast group includes one primary base station. And a plurality of slave base stations, wherein the primary base station of each PDT co-frequency simulcast group is any base station selected from all base stations of the system, and the slave base station is a plurality of base stations except the main base station in the system, and each of the master base stations respectively
  • the control center corresponding to the PDT intra-frequency simulcast group; the primary base station is configured to communicate with the slave base station in the same-frequency simulcast group corresponding to the primary base station and the terminal within the coverage of the primary base station, and the slave base station is set to be the slave base station.
  • a non-transitory computer readable storage medium storing computer executable instructions for performing any one of the above PDT simultaneous frequency simulcast groups Establish a method.
  • a non-transitory computer readable storage medium storing computer executable instructions for performing any one of the above PDT simultaneous frequency simulcast groups The method of communication between them.
  • an electronic device comprising one or more processors, a memory, and one or more programs, the one or more programs being stored in a memory, when When executed by one or more processors, any one of the above PDT simultaneous frequency simulcast group establishment methods is performed.
  • an electronic device comprising one or more processors, a memory, and one or more programs, the one or more programs being stored in a memory, when A method of performing communication between any of the above PDT co-frequency simulcast groups when executed by one or more processors.
  • any one of the base stations can be selected as the primary base station and multiple base stations as the secondary base station to form the same-frequency simulcast area, thereby providing a sufficiently large wireless coverage area.
  • the voice can be continuously interrupted in the system, and the voice effect can be improved.
  • FIG. 1 is a schematic overall structural diagram of a PDT cluster co-frequency simulcast system provided in Embodiment 1 of the present disclosure
  • FIG. 2 is a flowchart of a method for establishing a PDT intra-frequency simulcast group provided in Embodiment 1 of the present disclosure
  • FIG. 3 is a flowchart of a method for communicating between PDT intra-frequency simulcast groups provided in Embodiment 2 of the present disclosure
  • FIG. 5 is a signaling flowchart of establishing an intra-frequency simulcast group of Example 2 and establishing a co-frequency simulcast call according to Embodiment 2 of the present disclosure
  • FIG. 6 is a schematic structural diagram of a device for establishing a PDT simultaneous frequency simulcast group provided in Embodiment 4 of the present disclosure
  • FIG. 7 is a schematic structural diagram of an apparatus for performing communication between intra-frequency simulcast groups provided in Embodiment 4 of the present disclosure
  • Embodiment 8 is a schematic structural diagram of hardware of an electronic device provided in Embodiment 7 of the present disclosure.
  • FIG. 9 is a schematic diagram showing the hardware structure of another electronic device provided in Embodiment 8 of the present disclosure.
  • the present disclosure provides a PDT co-frequency simulcast group establishment method and device thereof, and a PDT same-frequency simulcast group. Inter-communication method and device thereof, PDT co-frequency simulcast system, the present disclosure will be described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the alternative embodiments described herein are merely illustrative of the disclosure and are not intended to be limiting.
  • the trunking communication system of the embodiment of the present disclosure may include the following parts: a network management system, a terminal (for example, a mobile station (MS)), a base station subsystem (BSS), and a core network (for example, a scheduling subsystem (Dispatching Sub- System, DSS)),
  • FIG. 1 is a schematic diagram of the overall structure of a PDT cluster co-frequency simulcast system provided by an embodiment of the present disclosure.
  • This embodiment provides a method for establishing a PDT intra-frequency simulcast group. The method can be implemented by a network management system. As shown in FIG. 2, the method includes steps 210-220.
  • one of the plurality of base stations is configured as a primary base station of the PDT intra-frequency simulcast group, and the remaining base stations are configured as slave base stations of the PDT intra-frequency simulcast group;
  • a plurality of base stations are all base stations in the same area where the PDT co-frequency simulcast group is to be formed, that is, all base stations in the same area that need to communicate using the PDT co-frequency simulcast service.
  • any one of the multiple base stations may be configured as a primary base station of the PDT intra-frequency simulcast group, and the remaining base stations are configured as slave base stations of the PDT intra-frequency simulcast group; or the administrative area level is the largest.
  • the base station is configured as a primary base station of the PDT intra-frequency simulcast group, and the remaining base stations are configured as slave base stations of the PDT intra-frequency simulcast group.
  • step 220 the configuration information of the intra-frequency simulcast group is notified to the primary base station and the plurality of secondary base stations in the same-frequency simulcast group.
  • the foregoing steps 210 to 220 may be performed multiple times, and different base stations are respectively selected as the primary base station to form a plurality of intra-frequency simulcast groups correspondingly, so that if a primary base station fails during the communication, The same-frequency simulcast group corresponding to the primary base station is switched to another co-frequency simulcast group for communication.
  • the PDT intra-frequency simulcast group includes one primary base station and multiple secondary base stations, and the primary base station is a control center of the PDT intra-frequency simulcast group, and is set as a slave in the same-frequency simulcast group corresponding to the primary base station.
  • the base station and the terminal within the coverage of the primary base station communicate.
  • the network management system may select any base station in the system as the primary base station without changing the networking mode of the PDT cluster system, and the other multiple base stations function as the secondary base station to form a co-frequency simulcast area, and multiple intra-frequency simulcast base stations are respectively located and The terminals within its coverage communicate wirelessly.
  • the primary base station is not only a control center, but also can communicate with terminals within its coverage, acting in two roles. Multiple primary base stations are supported in the network. Different primary frequency base stations are different in the same frequency simulcast group (that is, the corresponding secondary base stations and terminals are different). If a primary base station suddenly fails, it will not affect other intra-frequency simulcasts. The use of the call is more flexible.
  • one base station is configured as the primary base station, and the remaining multiple base stations are configured as the secondary base station, and the group attribute is configured as the same frequency simulcast group;
  • the NMS After the configuration is complete, the NMS notifies each base station of the configuration information.
  • the primary base station After each base station receives the notification message, the primary base station initiates a configuration handshake with the secondary base station, and the location area identification (LAI) of the primary base station, the LAI of the secondary base station, the same-frequency simultaneous broadcast frequency point, and the primary base station media plane.
  • Configuration information such as an Internet Protocol (IP) interconnected between networks is broadcast to all slave base stations through the core network.
  • IP Internet Protocol
  • the base station receives the handshake message of the primary base station sent by the core network, and determines that the LAI and the same-frequency multicast frequency of the local station are consistent with the slave base station LAI and the same-frequency simulcast frequency point respectively included in the handshake message, and feedback the handshake response to the primary base station.
  • the message wherein the content of the handshake corresponding message carries information about the primary base station handshake message from the base station LAI, the base station media plane IP, the same frequency simulcast frequency point, and the base station database.
  • the primary base station receives the slave The handshake response message sent by the base station, and the primary base station database saves the content of the message in the handshake response message.
  • This embodiment provides a method for performing communication between PDT and the same frequency simulcast group.
  • the method may be performed by a primary base station in a PDT intra-frequency simulcast group. As shown in FIG. 3, the method includes steps 310-320. .
  • step 310 the primary base station of the PDT co-frequency simulcast group receives the first signaling from the core network
  • step 320 the first signaling is sent to all secondary base stations and terminals within the coverage of the primary base station.
  • the PDT co-frequency simulcast group includes a primary base station and a plurality of secondary base stations, and the primary base station is a control center of the PDT intra-frequency simulcast group, and is set to be the slave base station in the same-frequency simulcast group corresponding to the primary base station, and The terminals within its coverage communicate.
  • the foregoing method may further include:
  • the primary base station When the primary base station receives the second signaling from the multiple base stations and the terminals in the coverage of the primary base station, the second signaling that carries the same timestamp in the first received frame header is sent to the core network, and the receiving is discarded.
  • the remaining frame headers carry the second signaling with the same timestamp; when the primary base station receives the intra-frequency simulcast group call, the primary base station sends a call setup request to the core network; after the core network allows the call to be established, the The core network notifies the PDT to establish a call from the base station in the same frequency simulcast group;
  • the A-frame is selected according to the Received Signal Strength Indication (RSSI) carried in the frame header of the A-frame of the media stream, and the selected frame is selected.
  • RSSI Received Signal Strength Indication
  • the A frame adds an identifier in the tunnel header; the subsequent frame is read from the corresponding tunnel according to the identifier in the tunnel header.
  • the call may be directly sent by the terminal within the coverage of the primary base station to the primary base station, or may be sent by the base station to the terminal within the coverage of the secondary base station. That is, the terminal performs a group call under the primary base station, and the primary base station can notify all the base station call establishments of the same-frequency simulcast area. If the terminal makes a group call from the base station, the core network may forward the call setup message to the primary base station, and the primary base station may notify all the base station call establishments of the same-frequency simulcast area. After the master-slave base station service channel is successfully established, it can communicate with the terminal within the coverage of the primary base station respectively.
  • the terminal can re-initiate other systems in the system.
  • the call of the same frequency simulcast group is switched from the same frequency simulcast system corresponding to the primary base station to another co-frequency simulcast system for communication.
  • the primary base station selects the timestamp carried in the frame header, and the same timestamp selects only the first one to send to the core network, and the rest throw away.
  • the primary base station receives the core network signaling, and forwards the core network signaling to the terminal within the coverage of the local station and each secondary base station.
  • the core network signaling forwarded by the primary base station is sent from the base station to the terminal within the coverage of the secondary base station.
  • the primary base station After receiving the media stream of the terminal and the plurality of slave base stations in the coverage of the primary base station, the primary base station first performs A frame selection according to the RSSI carried in the frame header of the A frame, and after the A frame is selected, the tunnel header is added.
  • the ID, the subsequent B, C, D, E, and F frames can be directly read from the tunnel to the core network according to the identifier in the tunnel header.
  • the primary base station receives the core network media stream, performs frame numbering, embedded signaling, and the like, and sends the packetized media stream to each slave base station, and simultaneously sends the terminal within the coverage of the primary base station according to the sending time stamp. And transmitting, by the base station, the core network media stream forwarded by the primary base station to the terminal within the coverage of the base station.
  • Example 1 In a province with an emergency, the Ministry of Public Security needs to mobilize the police force of each city and county in the province and conduct unified command.
  • the provincial station can be configured as the primary base station, and the base stations of each city and county are configured to be the same from the base station.
  • the frequency simulcast area it is possible to achieve the same frequency and improve the voice effect between the stations.
  • the configuration is restored, and the base station and the base stations of each city and county are restored to the common base station.
  • the process of setting up the same frequency simulcast group and establishing the same frequency simulcast call includes the step a. - Step j. :
  • step a the network management system configures the provincial base station as the primary base station, and the plurality of city and county base stations are configured as slave base stations, and the corresponding group is G0.
  • the NMS sends configuration messages to the primary and secondary base stations.
  • step b after receiving the configuration message, the primary base station initiates a handshake message with the secondary base station.
  • step c the core network transparently transmits the handshake message to the plurality of secondary base stations. After receiving the handshake message from the base station, if the frequency point and the LAI are correct, the handshake response is sent back, and the relevant configuration of the primary base station is saved.
  • each slave base station feeds back a handshake response to the primary base station.
  • step e the core network transparently transmits a handshake response message to the primary base station, and after receiving the primary base station, the configuration related to each secondary base station is saved.
  • step f MS0 initiates a co-frequency multicast group G0 call.
  • step g the primary base station sends a call setup request to the core network.
  • step h the core network allows the call setup.
  • step i the primary base station notifies each secondary base station call establishment through the core network.
  • step j the core network transparently transmits a call setup message to each of the secondary base stations.
  • the primary base station and the secondary base station traffic channel are successfully established, and the primary base station communicates with multiple secondary base stations and terminals within the coverage of the primary base station, and each secondary base station and corresponding coverage in the same frequency simulcast system The terminals communicate separately.
  • Example 2 Shenzhen City hosted the Universiade, and there are competition venues in several districts. If there are 5 competition venues, they are Longgang, Futian, Nanshan, Baoan and Yantian.
  • two master base stations can be configured, corresponding to two co-frequency simulcast groups, to form two co-frequency simulcast systems, as shown in FIG.
  • the network management system configures the base station of the Longgang area as the primary base station, and the other 4 area base stations are configured as the secondary base station, and the primary base station and the plurality of secondary base stations form the same frequency simulcast system 1, and the corresponding group is G1.
  • the NMS sends configuration messages to the primary and secondary base stations.
  • step b after receiving the configuration message, the primary base station initiates a handshake message with the secondary base station.
  • step c the core network transparently transmits a handshake message to each of the secondary base stations. After receiving the handshake message from the base station, if the frequency point and the LAI are correct, the handshake response is sent back, and the relevant configuration of the primary base station is saved.
  • each slave base station returns a handshake response to the primary base station.
  • step e the core network transparently transmits a handshake response message to the primary base station, and after receiving the primary base station, the configuration related to each secondary base station is saved.
  • the network management system configures the base station of Futian District as the primary base station, and the other four base station base stations are configured as the secondary base station, and the primary base station and the plurality of secondary base stations form the same frequency simulcast system 2, and the corresponding group is G2.
  • the NMS sends a notification message to the master and slave base stations.
  • the processing procedure for the base station to receive the notification message is the same as the steps b to e above.
  • the network management configuration of the same-frequency simulcast system 2 and the base station receive the configuration notification message, the processing action is completed, and the same-frequency simultaneous broadcast G2 call initiated by the terminal is accepted at any time.
  • step g the MSA initiates an intra-frequency simulcast group G1 call.
  • step h the primary base station sends a call setup request to the core network.
  • step i the core network allows the call setup.
  • step j the primary base station notifies each of the secondary base stations in the same-frequency simulcast system 1 to call through the core network. set up.
  • step k the core network transparently transmits a call setup message to each of the secondary base stations.
  • the primary base station and the secondary base station traffic channel are successfully established, and the primary base station communicates with each of the secondary base stations in the same frequency simulcast system 1 and the terminal within the coverage of the primary base station, in the same frequency simulcast system 1
  • Each slave base station communicates with a terminal within a corresponding coverage area.
  • step I if the primary base station of Longgang District suddenly fails during the competition, the MSA can re-initiate the call of the intra-frequency simulcast group G2 and switch to the same-frequency simulcast system 2.
  • FIG. 6 is a structural block diagram of the device 60. As shown in FIG. 6, the device may include a configuration module 61 and a first notification module 62.
  • the configuration module 61 is configured to configure one of the plurality of base stations to be the primary base station of the professional digital trunking PDT co-frequency simulcast group, and the remaining base stations are configured as the secondary base stations of the PDT intra-frequency simulcast group;
  • the first notification module 62 is configured to notify configuration information of the intra-frequency simulcast group to the primary base station and each secondary base station in the same-frequency simulcast group;
  • the PDT intra-frequency simulcast group includes one primary base station and multiple secondary base stations,
  • the primary base station is a control center of the PDT intra-frequency simulcast group, and is configured to communicate with the secondary base station in the same-frequency simulcast group of the primary base station and the terminal within the coverage of the primary base station.
  • FIG. 7 is a structural block diagram of the device 70. As shown in FIG. 7, the device may include a receiving module 71.
  • the receiving module 71 is configured to receive, by the primary base station of the PDT intra-frequency simulcast group, the first signaling from the core network, and send the first signaling to all the secondary base stations and terminals in the coverage of the primary base station; wherein, the PDT is the same frequency.
  • the simulcast group includes a primary base station and a plurality of secondary base stations, and the primary base station is a control center of the PDT intra-frequency simulcast group, and is set to be in a range from the base station in the same-frequency simulcast group of the primary base station and in the coverage of the primary base station.
  • the terminal communicates.
  • the foregoing apparatus 70 further includes: a first sending module, configured to: when the primary base station receives the second signaling from each of the secondary base stations and the terminal within the coverage of the primary base station, the first received frame header The second signaling carrying the same timestamp is sent to the core network, and the second signaling that carries the same timestamp in the remaining frame headers is discarded.
  • the second sending module is configured to receive the same-frequency simulcast group at the primary base station.
  • the call setup request is sent to the core network;
  • the second notification module is configured to notify the base station to establish a call from the base station in the PDT intra-frequency simulcast group after the core network allows the call to be established;
  • the selection module is set to After the primary base station receives the media stream from the terminal or the secondary base station in the coverage of the primary base station, the RSSI is selected according to the received signal strength indicator carried in the frame header of the A-frame of the media stream, and the selected A is selected.
  • the frame adds an identifier in the tunnel header; the reading module is configured to read subsequent frames from the corresponding tunnel according to the identifier in the tunnel header.
  • the embodiment also provides a PDT co-frequency simulcast system, where the system includes multiple intra-frequency simulcast groups, where each PDT intra-frequency simulcast group includes one primary base station and multiple secondary base stations, and each PDT
  • the primary base station of the same-frequency simulcast group is any base station selected from all base stations of the system, and the slave base station is a plurality of base stations other than the primary base station in the system, that is, each primary base station is different from each other.
  • the plurality of slave base stations form a plurality of PDT intra-frequency simulcast groups, each master base station is a control center corresponding to the PDT intra-frequency simulcast group; and the master base station is set to be a slave in the same-frequency simulcast group corresponding to the master base station.
  • the PDT intra-frequency simulcast system in this embodiment may be established by the method for establishing the PDT intra-frequency simulcast system described in the foregoing embodiment, or may be repeatedly executed to establish a PDT simultaneous-frequency simulcast.
  • the group method is implemented.
  • the embodiment further provides a non-transitory computer readable storage medium storing computer executable instructions for executing the PDT same frequency simulcast group establishing method.
  • the embodiment further provides a non-transitory computer readable storage medium storing computer executable instructions for performing a method for communicating between the PDT co-frequency simulcast groups.
  • FIG. 8 is a schematic diagram of the hardware structure of the electronic device. As shown in FIG. 8, the electronic device includes a processor 81, a memory 82, a communication interface 83, and a bus 84.
  • a processor 81 and a memory 82 may further include a communication interface 83 and a bus 84.
  • the processor 81, the memory 82, and the communication interface 83 can complete communication with each other through the bus 84.
  • Communication interface 83 can be used for information transmission.
  • the processor 81 can call the logic instructions in the memory 82 to perform the PDT intra-frequency simulcast group establishment method of the above embodiment.
  • the logic instructions in memory 82 described above may be implemented in the form of software functional units and sold or used as separate products, and may be stored in a computer readable storage medium.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in the embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • a medium that can store program code, or a transitory storage medium including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • FIG. 9 is a schematic diagram of the hardware structure of the electronic device. As shown in FIG. 9, the electronic device includes a processor 91, a memory 92, a communication interface 93, and a bus 94.
  • a processor 91 and a memory 92; a communication interface 93 and a bus 94 may also be included.
  • the processor 91, the memory 92, and the communication interface 93 can complete communication with each other through the bus 94.
  • Communication interface 93 can be used for information transmission.
  • the processor 91 can call the logic instructions in the memory 92 to perform the method of communicating with the PDT co-frequency simulcast component of the above embodiment.
  • the logic instructions in memory 92 described above may be implemented in the form of software functional units and sold or used as separate products, and may be stored in a computer readable storage medium.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in the embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • a medium that can store program code, or a transitory storage medium including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • the process in the PDT co-frequency simulcast group establishment method of the foregoing embodiment can be performed by a computer program to execute related hardware, and the program can be stored in one.
  • the program when the program is executed, the program may include a flow of an embodiment of the PDT simultaneous frequency simulcast group establishing method, wherein the computer readable storage medium may be a magnetic disk, an optical disk, or only Read storage memory (ROM) or random access memory (RAM).
  • all or part of the processes in the method for communicating between the PDT and the same frequency simulcast group in the foregoing embodiment can also be performed by a computer program to execute related hardware, and the program can also be stored in a non-transitory computer readable storage medium, and when executed, the program can include a method for communicating between the PDT same frequency simulcast groups as above.
  • the embodiment process flow wherein the computer readable storage medium can also be a magnetic disk, an optical disk, a ROM, a RAM, or the like.
  • any one of the base stations can be selected as the primary base station and multiple base stations as the secondary base station to form the same-frequency simulcast area, thereby providing a sufficiently large wireless coverage area. And can make the inter-station call voice in the system continuously uninterrupted, and the voice effect is greatly improved.
  • the primary base station is both a control center and can communicate with terminals within the coverage of the primary base station, and can realize one-stop multi-purpose.
  • the system is flexible in configuration and supports multiple primary base stations in the network. If a primary base station suddenly fails, it will not affect the use of other intra-frequency simultaneous broadcast calls.
  • Embodiments of the present disclosure relate to a PDT co-frequency simulcast group establishing method and device thereof, a PDT co-frequency simulcast group communication method and device thereof, and a PDT co-frequency simulcast group system, which can solve the same-frequency simulcast system
  • the failure of the control center in the middle caused the problem that the entire same-frequency simulcast system could not be used.

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Abstract

一种PDT同频同播组建立方法、通信方法、相关装置及系统，其中，PDT同频同播组的建立方法包括：将多个基站中的一个基站配置为专业数字集群PDT同频同播组的主基站，其余基站配置为PDT同频同播组的从基站；将PDT同频同播组的配置通知给PDT同频同播组内的主基站以及每个从基站；主基站为PDT同频同播组的控制中心，主基站设置为与PDT同频同播组内的从基站以及主基站覆盖范围内的终端进行通信。

Description

PDT同频同播组建立方法、通信方法、相关装置及系统 技术领域
本公开涉及通讯领域，例如涉及一种PDT同频同播组建立方法、通信方法、相关装置及系统。
背景技术
在专业数字集群(Professional Digital Trunking，PDT)系统中，不同的基站间通常采用异频进行工作，即终端处于业务中时，如果要进行跨基站间切换，则需要进行跨频切换。这样对语音质量存在较大的影响，难以满足对调度语音质量要求较高的群组的需求。采用同频同播技术可以解决该问题，对于某些特定需求，比如某段时间某几个站点存在大量用户使用时，由于PDT系统的控制信道容量限制问题，也可以采用同频同播解决。相关技术中的同频同播系统可以包括一个控制中心和一个以上分别与控制中心通过链路连接的远端基站，控制中心和远端基站连接关系是固定的，不能改变的，如果控制中心出现了故障，可能导致整个同频同播系统无法使用，并且可能导致控制中心无法直接跟终端通讯，使得整个同频同播系统无法进行同频同播呼叫。
发明内容
本公开提供一种PDT同频同播组建立方法、通信方法、相关装置及系统，可以解决由于同频同播系统中的控制中心出现故障可能导致整个同频同播系统无法使用的问题。
根据本公开实施例的第一个方面，提供了一种PDT同频同播组建立方法，包括：将待组建PDT同频同播组的所有基站中的一个基站配置为PDT同频同播组的主基站，其余基站配置为PDT同频同播组的从基站；将PDT同频同播组的配置通知给PDT同频同播组内的主基站以及从基站；主基站为PDT同频同播组的控制中心，主基站设置为与PDT同频同播组内的从基站以及主基站覆盖范围内的终端进行通信。
根据本公开实施例的第二个方面，提供了一种PDT同频同播组间进行通信的方法，包括：PDT同频同播组的主基站接收来自核心网的第一信令，将第一信令发送至PDT同频同播组内的所有从基站以及主基站覆盖范围内的所有终端；其 中，PDT同频同播组包括一个主基站以及多个从基站，主基站为PDT同频同播组的控制中心。
可选地，上述PDT同频同播组间进行通信的方法还包括：在主基站接收到来自多个从基站以及主基站覆盖范围内的终端的第二信令时，将最先接收到的帧头中携带有同一时间戳的第二信令发送至核心网，丢弃接收到的其余帧头中携带有同一时间戳的第二信令。
可选地，上述PDT同频同播组间进行通信的方法还包括：在主基站接收到同频同播组呼叫时，向核心网发送呼叫建立请求；在核心网允许本次呼叫建立后，通过核心网通知PDT同频同播组内的从基站呼叫建立。
可选地，上述PDT同频同播组间进行通信的方法还包括：在主基站接收到来自主基站覆盖范围内的终端或从基站的媒体流后，根据媒体流A帧的帧头中携带的接收信号的强度指示(Received Signal Strength Indication，RSSI)选择A帧，并对选择的A帧增加隧道头中的标识；以及根据隧道头中的标识从对应的隧道读取后续的帧。
根据本公开实施例的第三个方面，提供了一种PDT同频同播组建立装置，包括：配置模块，设置为将待组建专业数字集群PDT同频同播组的所有基站中的一个基站配置为PDT同频同播组的主基站，其余基站配置为PDT同频同播组的从基站；第一通知模块，设置为将PDT同频同播组的配置通知给PDT同频同播组内的主基站以及各从基站；主基站为PDT同频同播组的控制中心，主基站设置为与PDT同频同播组内的从基站以及主基站覆盖范围内的终端进行通信。
根据本公开实施例的第四个方面，提供了一种PDT同频同播组间进行通信的装置，包括：第一发送模块，设置为通过专业数字集群PDT同频同播组的主基站接收来自核心网的第一信令，将第一信令发送至PDT同频同播组内的所有从基站以及主基站覆盖范围内的所有终端；其中，PDT同频同播组包括一个主基站以及多个从基站，主基站为PDT同频同播组的控制中心。
可选地，上述PDT同频同播组间进行通信的装置还包括：第二发送模块，设置为在主基站接收到来自多个从基站以及主基站覆盖范围内的终端的第二信令时，将最先接收到的帧头中携带有同一时间戳的第二信令发送至核心网，丢弃接收到的其余帧头中携带有同一时间戳的第二信令。
可选地，上述PDT同频同播组间进行通信的装置还包括：第三发送模块，设置为在主基站接收到同频同播组呼叫时，向核心网发送呼叫建立请求；以及，第二通知模块，设置为在核心网允许本次呼叫建立后，通过核心网通知PDT同频 同播组内的从基站呼叫建立。
可选地，上述PDT同频同播组间进行通信的装置还包括：选择模块，设置为在主基站接收到来自主基站覆盖范围内的终端或从基站的媒体流后，根据媒体流的A帧帧头中携带的接收信号强度指示RSSI选择A帧，对选择的A帧增加隧道头中的标识；读取模块，设置为根据隧道头中的标识从对应的隧道读取后续的帧。
根据本公开实施例的第五个方面，还提供了一种PDT同频同播系统，该系统包括多个PDT同频同播组，其中，每个PDT同频同播组均包括一个主基站以及多个从基站，每个PDT同频同播组的主基站为从系统的所有基站中挑选出的任意基站，从基站为系统内除主基站之外的多个基站，每个主基站分别为对应PDT同频同播组的控制中心；主基站设置为与该主基站对应的同频同播组内的从基站以及处于主基站覆盖范围内的终端进行通讯，从基站设置为与从基站所属的同频同播组内的主基站以及处于从基站覆盖范围内的终端进行通讯。
根据本公开实施例的第六个方面，还提供一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于上述任意一种执行PDT同频同播组建立方法。
根据本公开实施例的第七个方面，还提供一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于上述任意一种执行PDT同频同播组间进行通信的方法。
根据本公开实施例的第八个方面，还提供一种电子设备，该电子设备包括一个或多个处理器、存储器以及一个或多个程序，所述一个或多个程序存储在存储器中，当被一个或多个处理器执行时，执行上述任意一种PDT同频同播组建立方法。
根据本公开实施例的第九个方面，还提供一种电子设备，该电子设备包括一个或多个处理器、存储器以及一个或多个程序，所述一个或多个程序存储在存储器中，当被一个或多个处理器执行时，执行上述任意一种PDT同频同播组间进行通信的方法。
采用本公开实施例提供的方案，在保持组网方式不变情况下，可以选择任意一个基站作为主基站和多个基站作为从基站组成同频同播区域，从而提供足够大的无线覆盖面积，并使得系统内可以跨站呼叫语音连续不中断，语音效果可提升。
附图说明
图1是本公开实施例1中提供的PDT集群同频同播系统的整体结构示意图；
图2是本公开实施例1中提供的PDT同频同播组建立方法的流程图；
图3是本公开实施例2中提供的PDT同频同播组间进行通信的方法的流程图；
图4是本公开实施例3中提供的实例1的同频同播群组的组建以及建立同频同播呼叫的信令流程图；
图5是本公开实施例3中提供的实例2的同频同播群组的组建以及建立同频同播呼叫的信令流程图；
图6是本公开实施例4中提供的PDT同频同播组建立装置的结构示意图；
图7是本公开实施例4中提供的同频同播组间进行通信的装置的结构示意图；
图8是本公开实施例7中提供的一种电子设备的硬件结构示意图；以及
图9是本公开实施例8中提供的另一种电子设备的硬件结构示意图。
具体实施方式
为了解决由于同频同播系统中的控制中心出现故障导致整个同频同播系统无法使用的问题，本公开提供了一种PDT同频同播组建立方法及其装置、PDT同频同播组间通信方法及其装置、PDT同频同播系统，以下结合附图以及实施例，对本公开进行相关说明。应当理解，此处所描述的可选实施例仅仅用以解释本公开，并不限定本公开。
实施例1
本公开实施例的集群通讯系统可以包括以下部分：网管、终端(例如终端平台(Mobile Station，MS))、基站子系统(Base station subsystem，BSS)以及核心网(例如调度子系统(Dispatching Sub-System，DSS))，图1是本公开实施例提供的PDT集群同频同播系统整体结构示意图。本实施例提供了一种PDT同频同播组建立方法，该方法可以由网管来实现，如图2所示，该方法包括步骤210-步骤220。
在步骤210中，将多个基站中的一个基站配置为PDT同频同播组的主基站，其余基站配置为PDT同频同播组的从基站；
多个基站即为待组建PDT同频同播组的所有基站，即，需要使用PDT同频同播业务进行通信的同一区域内的所有基站。
可选地，可以将多个基站中的任意一个基站配置为所述PDT同频同播组的主基站，其余基站配置为所述PDT同频同播组的从基站；或将行政区域级别最大的基站配置为所述PDT同频同播组的主基站，其余基站配置为所述PDT同频同播组的从基站。
在步骤220中，将同频同播组的配置信息通知给同频同播组内的主基站以及多个从基站。
可选地，可以将上述步骤210至220执行多遍，分别选择不同的基站作为主基站，以对应构成多个同频同播组，这样，在通信过程中，如果一个主基站出现故障，可以从该主基站对应的同频同播组切换至其他的同频同播组进行通信。
本实施例中，PDT同频同播组包括一个主基站以及多个从基站，主基站为PDT同频同播组的控制中心，设置为与该主基站对应的同频同播组内的从基站以及处于该主基站覆盖范围内的终端进行通讯。
在本实施例中，可选地，可以按照如下处理方式进行：
在不改变PDT集群系统组网方式的情况下，网管可以选择系统内任意基站作为主基站，其他多个基站作为从基站，组成一个同频同播区域，多个同频同播基站分别与处于其覆盖范围内的终端进行无线通讯。主基站不仅是控制中心，还可以与其覆盖范围内的终端进行通信，充当了两种角色。网内支持多个主基站，不同主基站对应的同频同播群组不一样(即，对应的从基站以及终端不同)，如果某个主基站突然出现故障，不会影响其他同频同播呼叫的使用，配置更灵活。
网管选择系统中一个基站配置为主基站，其余多个基站配置为从基站，群组属性配置为同频同播组；
配置完成后，网管将配置信息通知每个基站；
每个基站收到通知消息后，主基站发起跟从基站的配置握手，把主基站的位置区识别码(Location Area Identify，LAI)、从基站的LAI、同频同播频点、主基站媒体面网络之间互连的协议(Internet Protocol，IP)等配置信息通过核心网广播给所有从基站。
从基站收到核心网发过来的主基站握手消息，判断本站LAI、同频同播频点分别与握手消息中包括的从基站LAI、同频同播频点一致，给主基站反馈握手响应消息，其中，该握手相应消息携带的内容有从基站的LAI、从基站媒体面IP、同频同播频点，从基站数据库保存主基站握手消息的相关信息。主基站收到从 基站发送的握手响应消息，主基站数据库保存该握手响应消息中的消息内容。
实施例2
本实施例提供了一种PDT同频同播组间进行通信的方法，该方法可以由PDT同频同播组中的主基站来执行，如图3所示，该方法包括步骤310-步骤320。
在步骤310中，PDT同频同播组的主基站接收来自核心网的第一信令；
在步骤320中，将第一信令发送至主基站覆盖范围内的所有从基站以及终端。
其中，PDT同频同播组包括一个主基站以及多个从基站，主基站为PDT同频同播组的控制中心，设置为与该主基站对应的同频同播组内的从基站以及处于其覆盖范围内的终端进行通讯。
可选地，上述方法还可以包括：
在主基站接收来自多个从基站以及该主基站覆盖范围内的终端的第二信令时，将最先接收到的帧头中携带同一时间戳的第二信令发送至核心网，丢弃接收到的其余帧头中携带同一时间戳的第二信令；在主基站接收到同频同播组呼叫时，主基站向核心网发送呼叫建立请求；在核心网允许本次呼叫建立后，通过核心网通知PDT同频同播组内的从基站呼叫建立；
在主基站接收到来自其覆盖范围内的终端或从基站的媒体流后，根据媒体流的A帧帧头中携带的接收信号强度指示(Received Signal Strength Indication，RSSI)选择A帧，对选择的A帧增加隧道头中的标识；根据隧道头中的标识从对应的隧道读取后续的帧。
需要说明的是，该呼叫可以是主基站覆盖范围内的终端向该主基站直接发送的，也可以是从基站转发该从基站覆盖范围内的终端发送的。即，终端在主基站下面进行群组呼叫，主基站可以通知该同频同播区域的所有从基站呼叫建立。如果终端在从基站下面进行群组呼叫，核心网会可以把呼叫建立消息转发到主基站，主基站可以通知该同频同播区域的所有从基站呼叫建立。主从基站业务信道都建立成功后，就可以分别与该主基站覆盖范围内的终端进行通信，如果在通信过程中当前同频同播组的主基站突然出现故障，终端可以重新发起系统内其他同频同播群组的呼叫，从该主基站对应的同频同播系统切换到另一个同频同播系统进行通信。
在上述通讯过程中，信令和媒体处理如下：
信令面：
反向，主基站收到该主基站覆盖范围内的终端和多个从基站的信令后，以帧头中携带的时间戳进行选择，同一时间戳仅选择第一条发送到核心网，其余丢弃。
前向，主基站收到核心网信令，转发该核心网信令给本站覆盖范围内的终端和每个从基站。从基站向该从基站覆盖范围内的终端发送主基站转发的核心网信令。
媒体面：
反向，主基站收到该主基站覆盖范围内的终端和多个从基站的媒体流后，根据A帧帧头中携带的RSSI先进行A帧选择，A帧选择后，增加隧道头中的标识ID，后续B、C、D、E、F帧则可以直接根据隧道头中的标识从该隧道读取并发到到核心网。
前向，主基站收到核心网媒体流，进行打帧序号，嵌入式信令等处理，把打包好的媒体流发送给每个从基站，同时按发送时间戳发送主基站覆盖范围内的终端，从基站向该基站覆盖范围内的终端发送主基站转发的核心网媒体流。
实施例3
本实施例通过两个可选的实例，对本公开提供的方案进行相关说明：
实例1：某省有突发事件，公安部需要调动全省各个市县的警力并统一指挥，这时就可以把省站配置为主基站，各个市县的基站配置成从基站，组成一个同频同播区域，可以实现同频率一呼百应，提升跨站间的语音效果。突发事件处理完后，恢复配置，省站和各个市县的基站即恢复成普通基站，如图4所示，同频同播群组的组建以及建立同频同播呼叫的过程包括步骤a-步骤j。：
在步骤a中，网管系统把省基站配置为主基站，多个市县基站配置为从基站，对应群组为G0。配置完成后，网管系统将配置消息发送至主、从基站。
在步骤b中，主基站收到配置消息后，发起跟从基站的握手消息。
在步骤c中，核心网透传握手消息到多个从基站。每个从基站收到握手消息后，判断频点与LAI正确，则回送握手响应，并保存主基站的相关配置。
在步骤d中，每个从基站给主基站反馈握手响应。
在步骤e中，核心网透传握手响应消息给主基站，主基站收到后，保存每个从基站相关的配置。
到该步骤，同频同播系统的网管配置和基站收到配置通知消息后处理动作完成，随时接受终端发起的同频同播G0呼叫。
在步骤f中，MS0发起同频同播群组G0呼叫。
在步骤g中，主基站向核心网发送呼叫建立请求。
在步骤h中，核心网允许该次呼叫建立。
在步骤i中，主基站通过核心网通知每个从基站呼叫建立。
在步骤j中，核心网透传呼叫建立消息给每个从基站。
至此，主基站、从基站业务信道都建立成功，主基站与多个从基站以及处于该主基站覆盖范围内的终端进行通讯，该同频同播系统中的每个从基站与对应覆盖范围内的终端分别进行通信。
实例2：深圳市承办大运会，在多个区都设置有比赛场地，假如共有5个比赛场地，分别为龙岗、福田、南山、宝安、盐田。为了比赛时的通讯保障，可以配置2个主基站，对应2个同频同播组，组成2个同频同播系统，如图5所示。
在步骤a中，可选地，网管系统把龙岗区的基站配置为主基站，其他4区基站配置为从基站，该主基站和多个从基站组成同频同播系统1，对应群组为G1。配置完成后，网管系统将配置消息发送至主、从基站。
在步骤b中，主基站收到配置消息后，发起跟从基站的握手消息。
在步骤c中，核心网透传握手消息到每个从基站。每个从基站收到握手消息后，判断频点与LAI正确，则回送握手响应，并保存主基站的相关配置。
在步骤d中，每个从基站给主基站回握手响应。
在步骤e中，核心网透传握手响应消息给主基站，主基站收到后，保存每个从基站相关的配置。
到该步骤，同频同播系统1的网管配置和基站收到配置通知消息后处理动作完成，随时接受终端发起的同频同播G1呼叫。
在步骤f中，可选地，网管系统把福田区的基站配置为主基站，其他4区基站配置为从基站，该主基站与多个从基站组成同频同播系统2，对应群组为G2。配置完成后，网管系统发通知消息到主、从基站。基站收到通知消息的处理步骤跟上述b步骤至e步骤一样。同频同播系统2的网管配置和基站收到配置通知消息后处理动作完成，随时接受终端发起的同频同播G2呼叫。
在步骤g中，MSA发起同频同播群组G1呼叫。
在步骤h中，主基站向核心网发送呼叫建立请求。
在步骤i中，核心网允许该次呼叫建立。
在步骤j中，主基站通过核心网通知同频同播系统1中的每个从基站呼叫 建立。
在步骤k中，核心网透传呼叫建立消息给每个从基站。至此，主基站、从基站业务信道都建立成功，主基站与同频同播系统1中的每个从基站以及处于该主基站覆盖范围内的终端进行通讯，该同频同播系统1中的每个从基站与对应覆盖范围内的终端分别进行通信。
在步骤I中，如果在比赛期间龙岗区的主基站突然出现故障，MSA可以重新发起同频同播群组G2的呼叫，切换到同频同播系统2中。
实施例4
本实施例提供一种PDT同频同播组建立装置，图6是该装置60的结构框图，如图6所示，该装置可以包括配置模块61和第一通知模块62。
配置模块61，设置为将多个基站中的一个基站配置为专业数字集群PDT同频同播组的主基站，其余基站配置为PDT同频同播组的从基站；
第一通知模块62，设置为将同频同播组的配置信息通知给同频同播组内的主基站以及每个从基站；PDT同频同播组包括一个主基站以及多个从基站，主基站为PDT同频同播组的控制中心，设置为与该主基站同频同播组内的从基站以及处于该主基站覆盖范围内的终端进行通讯。
本实施例还提供了一种PDT同频同播组间进行通信的装置，图7是该装置70的结构框图，如图7所示，该装置可以包括接收模块71。
接收模块71，设置为通过PDT同频同播组的主基站接收来自核心网的第一信令，将第一信令发送至主基站覆盖范围内的所有从基站以及终端；其中，PDT同频同播组包括一个主基站以及多个从基站，主基站为PDT同频同播组的控制中心，设置为与该主基站同频同播组内的从基站以及处于该主基站覆盖范围内的终端进行通讯。
可选地，上述装置70还包括：第一发送模块，设置为在主基站接收来自每个从基站以及该主基站覆盖范围内的终端的第二信令时，将最先接收到的帧头中携带同一时间戳的第二信令发送至核心网，丢弃接收到的其余帧头中携带同一时间戳的第二信令；第二发送模块，设置为在主基站接收到同频同播组呼叫时，向核心网发送呼叫建立请求；第二通知模块，设置为在核心网允许本次呼叫建立后，通过核心网通知PDT同频同播组内的从基站呼叫建立；选择模块，设置为在主基站接收到来自该主基站覆盖范围内的终端或从基站的媒体流后，根据媒体流的A帧帧头中携带的接收信号强度指示RSSI选择A帧，对选择的A 帧增加隧道头中的标识；读取模块，设置为根据隧道头中的标识从对应的隧道读取后续的帧。
本实施例还提供了一种PDT同频同播系统，该系统包括多个同频同播组，其中，每个PDT同频同播组均包括一个主基站以及多个从基站，每个PDT同频同播组的主基站为从系统的所有基站中挑选出的任意基站，从基站为所述系统内除所述主基站之外的多个基站，即，每个主基站分别与不同的多个从基站的组合构成多个PDT同频同播组，每个主基站为对应PDT同频同播组的控制中心；主基站设置为与该主基站对应的同频同播组内的从基站以及处于所述主基站覆盖范围内的终端进行通讯，所述从基站设置为与所述从基站所属的同频同播组内的主基站以及处于所述从基站覆盖范围内的终端进行通讯。
需要说明的是，本实施例中的PDT同频同播系统可以由上述实施例中记载的PDT同频同播系统的建立方法来建立，也可以是重复执行多次建立一个PDT同频同播组的方法来实现。
实施例5
本实施例还提供一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述PDT同频同播组建立方法。
实施例6
本实施例还提供一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述PDT同频同播组间进行通信的方法。
实施例7
本实施例还提供一种电子设备，图8是该电子设备的硬件结构示意图，如图8所示，该电子设备包括处理器81、存储器82、通信接口83和总线84。
处理器(processor)81和存储器(memory)82；还可以包括通信接口(Communications Interface)83和总线84。
其中，处理器81、存储器82和通信接口83可以通过总线84完成相互间的通信。通信接口83可以用于信息传输。处理器81可以调用存储器82中的逻辑指令，以执行上述实施例的PDT同频同播组建立方法。
此外，上述的存储器82中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基 于这样的理解，本公开的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质，也可以是暂态存储介质。
实施例8
本实施例还提供一种电子设备，图9是该电子设备的硬件结构示意图，如图9所示，该电子设备包括处理器91、存储器92、通信接口93和总线94。
处理器(processor)91和存储器(memory)92；还可以包括通信接口(Communications Interface)93和总线94。
其中，处理器91、存储器92和通信接口93可以通过总线94完成相互间的通信。通信接口93可以用于信息传输。处理器91可以调用存储器92中的逻辑指令，以执行上述实施例的PDT同频同播组建进行通信的方法。
此外，上述的存储器92中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质，也可以是暂态存储介质。
最后需要说明的是，本领域普通技术人员可理解上述实施例PDT同频同播组建立方法中的全部或部分流程，是可以通过计算机程序来执行相关的硬件完成的，该程序可存储于一个非暂态计算机可读存储介质中，该程序在执行时，可包括如上述PDT同频同播组建立方法的实施例的流程，其中，该计算机可读存储介质可以为磁碟、光盘、只读存储记忆体(ROM)或随机存储记忆体(RAM)等。
此外，上述实施例PDT同频同播组间进行通信的方法中的全部或部分流程， 也是可以通过计算机程序来执行相关的硬件完成的，该程序也可以存储于一个非暂态计算机可读存储介质中，该程序在执行时，可包括如上PDT同频同播组间进行通信的方法的实施例流程，其中，该计算机可读存储介质也可以为磁碟、光盘、ROM或RAM等。
采用本公开实施例提供的方案，在保持原来组网方式不变情况下，可以选择任意一个基站作为主基站和多个基站作为从基站组成同频同播区域，从而提供足够大的无线覆盖面积，并可以使得系统内跨站呼叫语音连续不中断，语音效果大幅度提升。同时，同频同播系统内，主基站既是控制中心，又可以跟该主基站覆盖范围内的终端进行通信，可以实现一站多用。系统内配置灵活，网内支持多个主基站，如果某个主基站突然出现故障，不会影响其他同频同播呼叫的使用。
工业实用性
本公开实施例涉及一种PDT同频同播组建立方法及其装置、PDT同频同播组间进行通信的方法及其装置以及PDT同频同播组系统，可以解决由于同频同播系统中的控制中心出现故障导致整个同频同播系统无法使用的问题。

Claims (13)

  1. 一种专业数字集群PDT同频同播组建立方法，包括：
    将待组建PDT同频同播组的所有基站中的一个基站配置为所述PDT同频同播组的主基站，其余基站配置为所述PDT同频同播组的从基站；
    将所述PDT同频同播组的配置通知给所述PDT同频同播组内的主基站以及从基站；以及
    所述主基站为所述PDT同频同播组的控制中心，所述主基站设置为与所述从基站以及所述主基站覆盖范围内的终端进行通信。
  2. 一种专业数字集群PDT同频同播组间进行通信的方法，包括：
    PDT同频同播组的主基站接收来自核心网的第一信令，将所述第一信令发送至所述PDT同频同播组内的所有从基站以及所述主基站覆盖范围内的所有终端；
    其中，所述PDT同频同播组包括一个主基站以及多个从基站，所述主基站为所述PDT同频同播组的控制中心。
  3. 根据权利要求2所述的方法，还包括：
    在接收到来自各从基站以及所述主基站覆盖范围内的终端的第二信令时，所述主基站将最先接收到的帧头中携带有同一时间戳的第二信令发送至核心网，丢弃接收到的其余帧头中携带有同一时间戳的第二信令。
  4. 根据权利要求2所述的方法，还包括：
    在接收到同频同播组呼叫时，所述主基站向核心网发送呼叫建立请求；以及
    在所述核心网允许本次呼叫建立后，通过所述核心网通知所述PDT同频同播组内的从基站呼叫建立。
  5. 根据权利要求2至4任意一项所述的方法，还包括：
    在接收到来自所述主基站覆盖范围内的终端或从基站的媒体流后，所述主基站根据所述媒体流A帧的帧头中携带的接收信号的强度指示RSSI选择A帧，并对选择的A帧增加隧道头中的标识；以及
    根据所述隧道头中的标识从对应的隧道读取后续的帧。
  6. 一种专业数字集群PDT同频同播组建立装置，包括：
    配置模块，设置为将待组建PDT同频同播组的所有基站中的一个基站配置为所述PDT同频同播组的主基站，其余基站配置为所述PDT同频同播组的从基站；
    第一通知模块，设置为将所述PDT同频同播组的配置通知给所述PDT同频同播组内的主基站以及从基站；
    所述主基站为所述PDT同频同播组的控制中心，所述主基站设置为与所述从基站以及所述主基站覆盖范围内的终端进行通信。
  7. 一种专业数字集群PDT同频同播组间进行通信的装置，包括：
    第一发送模块，设置为通过PDT同频同播组的主基站接收来自核心网的第一信令，将所述第一信令发送至所述PDT同频同播组内的所有从基站以及所述主基站覆盖范围内的所有终端；
    其中，所述PDT同频同播组包括一个主基站以及多个从基站，所述主基站为所述PDT同频同播组的控制中心。
  8. 根据权利要求7所述的装置，还包括：
    第二发送模块，设置为在所述主基站接收到来自多个从基站以及所述主基站覆盖范围内的终端的第二信令时，将最先接收到的帧头中携带有同一时间戳的第二信令发送至核心网，丢弃接收到的其余帧头中携带有同一时间戳的第二信令。
  9. 根据权利要求7所述的装置，还包括：
    第三发送模块，设置为在所述主基站接收到同频同播组呼叫时，向核心网发送呼叫建立请求；以及
    第二通知模块，设置为在所述核心网允许本次呼叫建立后，通过所述核心网通知所述PDT同频同播组内的从基站呼叫建立。
  10. 根据权利要求7至9任意一项所述的装置，还包括：
    选择模块，设置为在所述主基站接收到来自所述主基站覆盖范围内的终端或从基站的媒体流后，根据所述媒体流的A帧帧头中携带的接收信号强度指示RSSI选择A帧，对选择的A帧增加隧道头中的标识；以及
    读取模块，设置为根据所述隧道头中的标识从对应的隧道读取后续的帧。
  11. 一种PDT同频同播系统，包括：
    多个PDT同频同播组，其中，每个PDT同频同播组均包括一个主基站以及多个从基站，所述每个PDT同频同播组的主基站为从所述系统的所有基站中挑选出的任意基站，所述从基站为所述系统内除所述主基站之外的多个基站，所述每个主基站分别为对应PDT同频同播组的控制中心；
    主基站设置为与该主基站对应的同频同播组内的从基站以及处于所述主基站覆盖范围内的终端进行通讯，所述从基站设置为与所述从基站所属的同频同播组内的主基站以及处于所述从基站覆盖范围内的终端进行通讯。
  12. 一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计 算机可执行指令用于执行权利要求1的PDT同频同播组建立方法。
  13. 一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求2-5任一项的PDT同频同播组间进行通信的方法。
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CN110267211B (zh) * 2018-03-12 2021-11-16 海能达通信股份有限公司 同播系统、通信方法及装置
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CN111194091B (zh) * 2018-11-14 2022-04-15 成都鼎桥通信技术有限公司 混合集群系统、资源调度方法及装置、存储介质
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