WO2015143913A1 - 一种基于集群系统的通信方法及装置 - Google Patents

一种基于集群系统的通信方法及装置 Download PDF

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Publication number
WO2015143913A1
WO2015143913A1 PCT/CN2014/095924 CN2014095924W WO2015143913A1 WO 2015143913 A1 WO2015143913 A1 WO 2015143913A1 CN 2014095924 W CN2014095924 W CN 2014095924W WO 2015143913 A1 WO2015143913 A1 WO 2015143913A1
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WO
WIPO (PCT)
Prior art keywords
repeater
terminal
station
relay station
time slot
Prior art date
Application number
PCT/CN2014/095924
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English (en)
French (fr)
Inventor
徐燕
谢汉雄
张颖哲
于洋
Original Assignee
海能达通信股份有限公司
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 海能达通信股份有限公司 filed Critical 海能达通信股份有限公司
Priority to US15/128,720 priority Critical patent/US20180220396A1/en
Priority to EP14886748.4A priority patent/EP3125608B1/en
Publication of WO2015143913A1 publication Critical patent/WO2015143913A1/zh
Priority to US17/321,320 priority patent/US20210274481A1/en

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication method and apparatus based on a cluster system.
  • the trunking communication system includes a terminal (intercom), a service repeater, a control repeater, and a control management center.
  • the service relay station and the control relay station include channel resources.
  • channel resources are managed and allocated by the Control Manager.
  • the terminal does not make a call or receives a call, it waits in the control transfer station. If the terminal wants to make a call, it needs to send a request to the control management center through the control transfer station. After the control management center assigns a service transfer station, the terminal switches to its The assigned service repeater makes a call.
  • the embodiment of the invention provides a communication method based on a cluster system, and aims to solve the problem that the construction cost of the trunking communication system is high because the communication process of the terminal must be controlled by the service transfer station and the control management center.
  • a communication method based on a cluster system comprising:
  • the first relay station transmits the identifier of the free transfer station and the status information of the first transfer station to the terminal, and the free transfer station is a transfer station pre-designated from a preset type of transfer station, and the preset type of transfer station a repeater that has at least one idle time slot channel;
  • the state information of the first repeater carries the situation that the time slot channel of the first relay station is occupied, so that when the terminal parses the first transit from the state information of the first relay station
  • the station has an idle time slot channel, and after the preset primary relay station is the first relay station, the terminal uses the first relay station for communication; when the terminal is from the first relay station All the time slot channels of the first relay station are occupied in the state information, and if the terminal does not participate in the current data communication of the first relay station, the terminal accesses the free transit station for communication. .
  • a cluster-based communication method includes:
  • the free repeater is a pre-designated repeater from a preset type of repeater, the preset type of repeater is a repeater having at least one idle slot channel, and the first repeater
  • the status information carries a situation in which the time slot channel of the first relay station is occupied;
  • the terminal parses the time slot channel in the first relay station from the state information of the first relay station, and the preset master repeater is the first relay station, the terminal Communicating with the first relay station;
  • the terminal After the terminal resolves that all the time slot channels of the first relay station are occupied from the state information of the first relay station, if the terminal does not participate in the current data communication of the first relay station, Then, the terminal accesses the free relay station for communication.
  • a transfer station comprising:
  • a first processor configured to send, to the terminal, an identifier of the free transfer station and status information of the transfer station itself, the free transfer station being a preset transfer station from a preset type of transfer station, the preset type
  • the relay station is a relay station having at least one idle time slot channel; the state information of the relay station itself carries a situation in which the time slot channel of the relay station itself is occupied;
  • the first memory is configured to store a program running in the first processor and data generated during the running of the program.
  • a terminal comprising:
  • a receiver configured to receive an identifier of the free repeater sent by the first repeater and status information of the first repeater, the free repeater being a preset transfer station from a preset type of transfer station, the pre-predetermined
  • the relay station of the type is a repeater station in which at least one idle time slot channel exists, and the state information of the first relay station carries the time slot channel of the first relay station is occupied;
  • a second processor configured to: when the terminal parses the status information of the first repeater, the first repeater has an idle time slot channel, and the preset master transfer station is the first After the relay station, the first relay station is used for communication; when the terminal resolves from the status information of the first relay station, all the time slot channels of the first relay station are occupied, if If the terminal does not participate in the current data communication of the first relay station, accessing the free relay station for communication;
  • a second memory configured to store a program in the second processor and data generated during the running of the program.
  • the terminal when there is an idle time slot channel in the main relay station of the terminal, the terminal preferentially communicates on its main relay station, and when the main relay station of the terminal is busy, the terminal transfers to the free transfer station.
  • the communication method is performed. Therefore, the method in this embodiment can be implemented by the relay station as a terminal scheduling time slot channel, and the relay station has the functions of data communication and scheduling terminal without using the control management center and the dedicated Controlling the transfer station, therefore, can reduce the construction cost of the trunk communication system.
  • 1 is a schematic structural diagram of a trunking communication system
  • FIG. 2 is a schematic structural diagram of a digital mobile radio communication system
  • FIG. 3 is a flowchart of a communication method based on a cluster system according to an embodiment of the present invention
  • FIG. 4 is a flowchart of still another communication method based on a cluster system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a short LC of a CACH in a communication method based on a cluster system according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a voice LC in a communication method based on a cluster system according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a PreCSBK in a communication method based on a cluster system according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of site state information in a communication method based on a cluster system according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a relay station according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of still another relay station according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of still another terminal according to an embodiment of the present invention.
  • the embodiment of the present invention is applied to a trunking communication system.
  • a digital mobile radio DMR
  • the trunking communication system includes a relay station and a terminal, wherein the relay station has
  • one repeater corresponds to two logical channel slots, that is, for each additional mid-frequency point, two logical channel slots will be added.
  • the repeater including three repeaters (F1, F2, and F3), six logical channel slots.
  • F1, F2, and F3 six logical channel slots.
  • a logical channel time slot corresponding to one relay station is different.
  • one relay station corresponds to four logical channel time slots. Therefore, the embodiment of the present invention only uses the DMR as an example, but is not limited thereto.
  • the method according to the embodiment of the invention can support a single station cluster mode or an Internet Protocol (IP) interconnection multi-station cluster mode.
  • IP Internet Protocol
  • the embodiment of the invention discloses a cluster system based method, which is applied to the trunking communication system shown in FIG. 2, in which the relay station F1 is preset as the master of the terminals G1, G2, and G3.
  • the transfer station, the transfer station F2 is the main transfer station of the terminals G4, G5, and G6, and the transfer station F3 is the transfer station of the terminals G7, G8, and G8.
  • the terminal can be designated according to the method of evenly distributing the number of terminals.
  • the main repeater can also be used to assign the main repeater to the terminal in any other manner, such as in any given manner.
  • the trunking communication system may be an extended cluster communication system.
  • the method described in this embodiment includes:
  • the first repeater (any one of F1, F2 or F3) sends the identifier of the free repeater and the state information of the first repeater to the terminal (all terminals G1 to G9);
  • the free repeater is a pre-designated repeater from a preset type of repeater, and the preset type of repeater is a repeater having at least one idle slot channel.
  • the free repeater can be pre-designated from the preset type of repeater according to the serial number of each repeater. For example, if F1, F2, and F3 each have an idle time slot channel, the transfer station F1 is pre-instructed to be freely transferred. station.
  • S302 The terminal receives the identifier of the free relay station sent by the first relay station and the status information of the first relay station.
  • the communication by the terminal by using the first relay station includes the terminal monitoring on the first relay station, or initiating a call on the first relay station, or receiving the call on the first relay station.
  • G1, G2, and G3 are both monitored at F1 after power-on, assuming that slot 1 in F1 is occupied, slot 2 is idle, F2 is pre-assigned as a free repeater, and F1 is to talkgroup G1 to G3.
  • the group member sends the F2 identifier and its own state information, and informs the terminal that the slot channel of the terminal under the F1 coverage is occupied.
  • Each terminal parses the received F1 state information to determine that there is idle in F1.
  • the group members of G1, G2, and G3 listen or call at F1.
  • G1, G2, and G3 are both monitored at F1 after powering on, assuming all time slots in F1.
  • the track is occupied, F2 is pre-designated as the free transfer station, and F1 sends the F2 identifier and its own status information to the group members of the talk groups G1 to G3, and informs the group members of G1 to G3 that the time slot channel of the group is occupied.
  • Each terminal parses the received status information of F1, and determines that all the time slot channels in F1 are occupied, and the terminal that does not participate in the call in the F1 coverage area accesses F2 for monitoring.
  • the terminal judges whether it initiates a call on the idle time slot channel of its own primary transfer station or switches to the free transfer station for communication according to the information broadcasted by its primary relay station. Therefore, this embodiment
  • the method can be implemented by the relay station as a terminal scheduling time slot channel, and the relay station has the functions of data communication and scheduling terminal, and does not need to use the control management center and the special control transfer station, so The cost of building a trunked communication system.
  • the terminal can access the free relay station for communication when the primary repeater of the terminal is busy, the terminal can share the channel resources, thereby improving the access success rate of the terminal and The utilization of the channel, at the same time, compared with the prior art, the terminal does not have to wait for the release of the control channel on the control channel, and does not need to perform the control channel to the traffic channel before the call, so when the terminal initiates the call, it can reduce The delay in call setup.
  • Another cluster-based communication method disclosed in the embodiment of the present invention is applied to the cluster communication system shown in FIG. 2, as shown in FIG. 4, the method described in this embodiment includes:
  • S401 When all the time slot channels in the first relay station (any one of F1, F2 or F3) are occupied, the first relay station transmits the public to the terminal (all terminals G1 to G9) on the occupied time slot channel.
  • the first repeater can monitor the occupied situation of its own time slot channel in real time, and if it is occupied by its own time slot channel, the execution of S401 is triggered.
  • the repeater When all the time slot channels in the repeater are occupied, it indicates that the repeater is in a non-idle working state, and the repeater may forward voice data, short message or control signaling to the terminal. Therefore, the repeater sends a short CACH to the terminal.
  • the repeater In addition to the LC, it may also include one of voice link control signaling Voice LC and pre-carrier signaling PreCSBK.
  • the short LC of the CACH carries the identifier of the free relay station, and the CACH carries the state information of the occupied channel in the first relay station.
  • the access type in the CACH can be set (Access Type). , the value of AT) to indicate whether the time slot channel is occupied.
  • the logo of the free transfer station is carried in the Voice LC and PreCSBK.
  • Short LC In this embodiment, the short LC of CACH is shown in Figure 5. The annotations of each part are shown in Table 1:
  • the identifier of the free relay station is carried in the short LC of the CACH to inform the terminal, and the terminal can learn from the short LC of the CACH that the time slot channel in the first relay station is occupied.
  • the terminal can preferentially communicate on the first repeater, and if all of the first repeater When the time slot channels are occupied, the terminal can switch to the free transit station for communication without having to wait in the first repeater station.
  • the identifier of the free transfer station is also carried, so that the terminal can still know the identity of the free transfer station when the transfer station forwards the call, short message or control signaling.
  • the site status information includes a situation in which each time slot channel of each relay station in the station is occupied and an identifier of the free transit station.
  • the first relay station can broadcast the short LC and site status information of the CACH to the terminal in a preset period. Because the first relay station is idle, the periodic broadcast can avoid one frequency point. The launch of time.
  • the site status information is as shown in FIG. 8, and the annotations of each part are shown in Table 4:
  • the first repeater can be any one of the clusters.
  • the preset type of repeater when the time slot channels of the preset type of repeater are all idle, the preset type of repeater periodically transmits the short link of the common notification channel CACH in the digital mobile radio protocol. Control signaling Short LC and site status information. After receiving the site status information, the terminal can parse the current state of the main transit station and the identity of the free transit station. If the terminal does not perform data transmission and reception, if the main transit station of the terminal has an idle time slot channel, then The terminal returns to its own main repeater. Otherwise, the terminal accesses the free repeater for communication.
  • the terminal user can know the communication status of each transfer station (including the main transfer station) in the station by receiving the station status information broadcasted by the system, and can learn the current free transfer station and the status of the main transfer station, so that the end user can quickly switch to forwarding the self.
  • the intermediate frequency of the call is connected to the call, the main transit station is busy, quickly switches to the free transit station, and the call ends, and then quickly returns to its own primary transfer station to improve the call access performance of the extended cluster system.
  • the setting of the free transfer station can comply with the following rules:
  • the free transfer station is selected from the list of idle transfer stations. At the same time, only one free transfer station exists in one site. When all the time slot channels in the free repeater are occupied, the free transfer station re-determines the free transfer station from the preset type of transfer station according to a preset rule.
  • the free repeater can designate a new free transfer station from the idle transfer station according to the serial number of each transfer station. For example, in FIG. 2, when both time slots of the previous free repeater F2 are occupied, it will become a busy repeater, and F2 designates a new free repeater F3, according to the method described in the above embodiment, The G5 and G6 group members who are not participating in the call will switch to the new free repeater F3 based on the received information.
  • the new free transfer station is always designated by the previous free transfer station. If the free transfer station is abnormal, after the other transfer stations in the station detect the drop, each transfer station determines whether it needs to inherit as a free transfer. station. For example: R3 exception, R4 will inherit as a new free transfer station.
  • the first transfer station or the preset type of transfer station receives the updated free transfer station information. Thereafter, one of the short link control signaling Short LC and the following signaling of the common notification channel CACH in the digital mobile radio protocol is transmitted to the terminal: voice link control signaling Voice LC, or pre-carrier signaling Update embedded free transfer station letter in PreCSBK interest.
  • the terminal When the terminal initiates a new call during receiving a call or holding a call, the terminal detects whether its primary relay station includes an idle channel time slot;
  • the terminal detects that its primary relay station includes an idle time slot channel, the terminal ends receiving the call and switches to its primary relay station to initiate a new call; otherwise, the terminal ends receiving the call and switches to the location The free transit station initiates a new call.
  • the group member A write frequency configuration can receive the call of the talk group G1, G2, and when the group member A receives the call of the group call G1 in the time slot 1 of F1, if the group member A has an urgent need to initiate a call, For the call of G2, the group member A ends the call to receive G1, and initiates the call of the call G2 using the idle channel slot 2 of its primary repeater F1.
  • the group member B write frequency configuration can receive the calls of the talk groups G2 and G3.
  • group member B receives the call of the group call G2 in the time slot 2 of F1
  • group member B ends the call to receive G2, and switches to free repeater F2 to initiate a call to call G3 using its idle channel slot 1.
  • the terminal first switches to its primary relay station to detect whether its primary relay station includes an idle channel time slot. If the terminal detects that its primary relay station includes an idle time slot channel, the terminal ends receiving the call and switches to A new call is initiated on its primary repeater, otherwise the terminal ends receiving the call and switches to the free transit station to initiate a new call.
  • the preset type of repeater or the free transfer station receives the voice link end frame sent by the terminal, if the transfer station that receives the voice link end frame is idle, then And transmitting, by the set time, the voice link end frame, and when the preset time is exceeded, the relay station that receives the voice link end frame sends the station status information;
  • the call back channel is used to perform call back, and the terminal receives the station status information, indicating that the current call is actually ended.
  • the embodiment of the present invention further discloses a relay station.
  • the method includes: an obtaining module 901, configured to acquire an identifier of a free transit station; and a sending module 902.
  • the sending module 902 is configured to send, to the terminal, an identifier of the free repeater and status information of the repeater, where the free repeater is pre-designated from a repeater having at least one idle slot channel, where the repeater
  • the status information carries a situation in which the time slot channel of the repeater station is occupied, so that when the terminal parses the status information of the repeater station, the idle time channel exists in the repeater station, and is preset.
  • the terminal Communicating with the relay station; when the terminal parses the status information of the relay station, all the time slot channels of the relay station are occupied, if the terminal does not participate in the current data communication of the relay station And the terminal accesses the free transit station for communication.
  • the specific implementation manner that the sending module sends the identifier of the free transit station and the status information of the transit station to the terminal may be:
  • the sending module sends the short link control signaling Short LC of the common notification channel CACH in the digital mobile radio protocol to the terminal and one of the following signaling: voice Link control signaling Voice LC, or pre-carrier signaling PreCSBK;
  • the public notification channel CACH in the digital mobile radio protocol carries state information occupied by each time slot channel in the relay station, and the short link control signaling Short LC in the public notification channel CACH in the digital mobile radio protocol carries freedom
  • the identifier of the repeater station, the voice link control signaling Voice LC or the pre-carrier signaling PreCSBK carries the identifier of the free transit station.
  • the sending module in this embodiment may also be used to:
  • Short LC and site status information of a common notification channel CACH in the digital mobile radio protocol Transmitting short-link control signaling Short LC and site status information of a common notification channel CACH in the digital mobile radio protocol to the terminal when the time slot channel in the relay station is idle or partially occupied, wherein the site status information includes The case where each slot channel of each repeater in the station is occupied and the identifier of the free repeater.
  • the sending module sends short link control signaling Short LC and site status of the common notification channel CACH in the digital mobile radio protocol to the terminal when the time slot channel in the relay station is idle or partially occupied.
  • the specific implementation of the information can be:
  • the sending module When the time slot channel of the repeater station is all idle, the sending module periodically transmits the short link control signaling Short LC and the station state information of the common notification channel CACH in the digital mobile radio protocol.
  • the repeating station may further include: a determining module 903, configured to re-determine the free transit station from the preset type of repeating station according to a preset rule when all the time slot channels in the free repeating station are occupied And inform the other repeaters in the station to update the free transfer station information.
  • a determining module 903 configured to re-determine the free transit station from the preset type of repeating station according to a preset rule when all the time slot channels in the free repeating station are occupied And inform the other repeaters in the station to update the free transfer station information.
  • the sending module is further configured to: after receiving the updated free repeater information, send the short link control signaling Short LC of the common notification channel CACH in the digital mobile radio protocol to the terminal and the following One of the signaling: the voice link control signaling Voice LC, or the pre-carrier signaling PreCSBK updates the embedded free transit station information.
  • the sending module is further configured to: when receiving the voice link end frame sent by the terminal, if the relay station that receives the voice link end frame is idle, broadcast the voice link end frame within a preset time, After the preset time is exceeded, the relay station that receives the voice link end frame transmits site status information.
  • the repeating station described in this embodiment the time slot channel is occupied and the pre-specified freedom
  • the identifier of the repeater station is sent to the terminal. Therefore, when it is applied in the trunking communication system, the function of the dispatching terminal is provided, and the control management center and the special control transfer station are not required in the cluster system, thereby saving the cluster communication system. Build costs.
  • the embodiment of the invention further discloses a terminal, as shown in FIG. 10, comprising:
  • the receiving module 1001 is configured to receive an identifier of the free repeater sent by the first repeater and status information of the first repeater, where the free repeater is a preset transfer station from a preset type of transfer station, The preset type of the repeater is a repeater having at least one idle slot channel, and the state information of the first repeater carries the slot channel of the first repeater is occupied;
  • the first communication module 1002 is configured to: when the terminal parses, from the status information of the first relay station, the time slot channel in which the first relay station has an idle time, and the preset primary transfer station is the first After the relay station is used, the first relay station is used for communication; and when the terminal resolves from the status information of the first relay station, all the time slot channels of the first relay station are occupied, If the terminal does not participate in the current data communication of the first relay station, the terminal is connected to the free relay station for communication.
  • the first communication module 1002 is configured to: when the terminal parses the status information of the first relay station, the first repeater has an idle time slot channel, and the preset master transfer station is After the first repeater station, the specific implementation manner in which the terminal communicates by using the first relay station includes:
  • the first communication module 1002 is configured to: after the terminal parses, from the state information of the first relay station, that the first relay station has an idle time slot channel, and the first set of the primary transfer station is After the first repeater, if there is no call for the terminal on the other repeater, it is connected to the first repeater for communication.
  • the terminal further includes:
  • the second communication module 1003 is configured to parse the current state of the main relay station of the terminal and the identifier of the free transfer station after receiving the status information of all the repeaters, if the terminal does not perform data transmission and reception, if the terminal The main repeater has an idle time slot channel, and then returns to the main repeater of the terminal, otherwise, accesses the free transfer station for communication.
  • a third communication module 1004 configured to: when the terminal initiates a new call during receiving a call or call hold, detecting whether the primary relay station of the terminal includes an idle channel time slot, if the primary relay station of the terminal includes idle The time slot channel ends the receiving call and switches to the primary repeater of the terminal to initiate a new call; otherwise, ends the receiving call and switches to the free transit station to initiate a new call.
  • the third communication module 1004 is further configured to:
  • the terminal receiving the call or the call holding is neither the primary relay station nor the current free transit station of the terminal, then before detecting whether the primary relay station of the terminal includes an idle channel time slot, switch to a primary relay station of the terminal; and, if the terminal is calling When the call is initiated during the call, the callback is performed using the time slot channel maintained by the call.
  • the terminal in the embodiment can receive the information transmitted by the relay station, and preferentially communicate on the main relay station.
  • the terminal automatically transfers to the free transfer station, thereby reducing the delay of communication in the trunk communication system. .
  • the embodiment of the present application further discloses another relay station, as shown in FIG. 11, comprising:
  • the first processor 1101 is configured to send, to the terminal, an identifier of a free transfer station and status information of the transfer station itself, the free transfer station being a preset transfer station from a preset type of transfer station, the preset A type of repeater is a repeater having at least one idle slot channel; the state information of the repeater carries a situation in which the slot channel of the repeater is occupied, so that when the terminal is from the repeater In the state information, the time slot channel in which the repeater station is idle is parsed, and after the preset master repeater is the repeater station, the terminal uses the relay station to perform communication; when the terminal is from the All the time slot channels of the relay station are occupied in the state information of the relay station, and if the terminal does not participate in the current data communication of the relay station, the terminal accesses the free relay station for communication;
  • the first memory 1102 is configured to store a program running in the first processor and data generated during the running of the program.
  • the specific implementation manner in which the first processor sends the identifier of the free repeater station and the state information of the repeater station to the terminal may be: when the time slot channels in the repeater station are all occupied, the first processor is used to Transmitting, by the terminal, one of short link control signaling Short LC and the following signaling of a common notification channel CACH in the digital mobile radio protocol: voice link control signaling Voice LC, or pre-carrier signaling PreCSBK;
  • the public notification channel CACH in the digital mobile radio protocol carries state information occupied by each time slot channel in the relay station, and the short link control signaling Short LC in the public notification channel CACH in the digital mobile radio protocol carries freedom
  • the identifier of the repeater station, the voice link control signaling Voice LC or the pre-carrier signaling PreCSBK carries the identifier of the free transit station.
  • the first processor may be further configured to: when the time slot channel in the repeater station is idle or partially occupied, send short link control signaling Short LC of the common notification channel CACH in the digital mobile radio protocol to the terminal And site status information, wherein the station status information includes a situation in which each time slot channel of each repeater station in the station is occupied and an identifier of the free transit station. Further, when the time slot channel in the repeater station is idle or partially occupied, the short link control signaling Short LC and the site state information of the common notification channel CACH in the digital mobile radio protocol are sent to the terminal.
  • the first processor may be further configured to periodically send short link control signaling Short LC and site status of the common notification channel CACH in the digital mobile radio protocol when the time slot channel of the relay station is all idle. information.
  • the first processor 1101 can also be used to: when all time slots in the free repeater When the tracks are occupied, the free transfer station is re-determined from the preset type of transfer station according to a preset rule, and the other transfer stations in the station are notified to update the free transfer station information;
  • the first processor may be further configured to: after receiving the updated free repeater information, send the short link control of the public notification channel CACH in the digital mobile radio protocol to the terminal One of the signaling Short LC and the following signaling: voice link control signaling Voice LC, or pre-carrier signaling PreCSBK updates the embedded free repeater information.
  • the first processor may be further configured to: when receiving the voice link end frame sent by the terminal, if the relay station that receives the voice link end frame is idle, broadcast the voice link within a preset time End frame, when the preset time is exceeded, the relay station that receives the voice link end frame sends the station status information.
  • the transit station in the trunking communication system in this embodiment has the function of scheduling the terminal, and the control management center and the special control relay station are not required in the cluster system, thereby saving the construction cost of the trunking communication system.
  • the cooperation between the first transfer station, the preset type of transfer station and the free transfer station can make the scheduling of the terminal more flexible.
  • the embodiment of the present application further discloses a terminal, as shown in FIG. 12, including:
  • a receiver 1201 configured to receive an identifier of a free repeater sent by the first repeater and status information of the first repeater, the free repeater being a preset transfer station from a preset type of transfer station,
  • the preset type of the repeater is a repeater having at least one idle slot channel, and the state information of the first repeater carries the slot channel of the first repeater is occupied;
  • the second processor 1202 is configured to: when the terminal parses the status information of the first relay station, the first repeater has an idle time slot channel, and the preset master transfer station is the first After the relay station is used, the first relay station is used for communication; and when the terminal resolves from the status information of the first relay station, all the time slot channels of the first relay station are occupied, If the terminal does not participate in the current data communication of the first relay station, accessing the free relay station for communication;
  • the second memory 1203 is configured to store a program in the fourth processor and data generated during the running of the program.
  • the second processor 1202 is configured to: when the terminal parses the status information of the first relay station, the first repeater has an idle time slot channel, and the preset main transfer station After the first repeater is used, the specific implementation of the communication by using the first repeater may be: the fourth processor is configured to: when the terminal is parsed from the state information of the first repeater The first repeater has an idle time slot channel, and after the first master transfer station is the first transfer station, if there is no call for the terminal on the other transfer station, the first connection is connected to the first The relay station communicates.
  • the second processor 1202 is further configured to: after receiving status information of all the repeaters, parsing The current state of the main repeater of the terminal and the identifier of the free repeater, if there is no data transmission and reception, if the primary repeater of the terminal has an idle time slot channel, return to the master of the terminal a repeater station, otherwise accessing the free repeater station for communication; and detecting, when the terminal initiates a new call during receiving a call or call hold, whether the primary repeater of the terminal includes an idle channel time slot, if If the primary relay station of the terminal includes an idle time slot channel, the terminal receives the call and switches to the primary repeater of the terminal to initiate a new call; otherwise, ends the receiving call and switches to the free transit station to initiate a new call.
  • the terminal receiving the call or call hold is neither the primary repeater of the terminal nor the current free repeater, before detecting whether the primary repeater of the terminal includes an idle channel time slot Switching to the primary repeater of the terminal; and, if the terminal initiates a callback during call hold, using the call hold time Channel callback.
  • the terminal in the embodiment can receive the information transmitted by the relay station, and preferentially communicate on the main relay station.
  • the terminal automatically transfers to the free transfer station, thereby reducing the delay of communication in the trunk communication system. .
  • the embodiment of the present application further discloses a trunking communication system, including the repeater shown in FIG. 9 and the terminal shown in FIG. 10, or the repeater shown in FIG. 11 and the terminal shown in FIG.
  • the functions described in the method of the present embodiment can be stored in a computing device readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, a portion of the embodiments of the present invention that contributes to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a
  • the computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例公开了一种基于集群系统的通信方法及装置，第一中转台向终端发送自由中转台的标识和第一中转台的状态信息，自由中转台为从至少存在一个空闲的时隙信道的预设类型的中转台中指定的中转台；当终端从第一中转台的状态信息中解析出第一中转台存在空闲时隙信道，且预设的主中转台为第一中转台后，终端利用第一中转台通信；当终端从第一中转台的状态信息中解析出第一中转台的全部时隙信道均被占用，如果终端没有参与第一中转台的数据通信，终端接入自由中转台通信。因此，由中转台实现为终端调度时隙信道的功能，且中转台兼具数据通信和调度终端的功能，而无需用到控制管理中心和专门的控制中转台，所以，能够降低集群通信系统的搭建成本。

Description

一种基于集群系统的通信方法及装置
本申请要求于2014年03月26日提交中国专利局、申请号为201410117702.8、发明名称为“一种基于集群系统的通信方法、中转台及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及一种基于集群系统的通信方法及装置。
背景技术
集群通信系统如图1所示，包括终端(对讲机)、业务中转台、控制中转台和控制管理中心。其中，业务中转台和控制中转台中包括信道资源。在集群通信系统中，由控制管理中心管理和分配信道资源。终端没有进行呼叫或接收呼叫时，守候在控制中转台，终端如要进行通话，则需要通过控制中转台向控制管理中心发出请求，控制管理中心为其分配业务中转台后，终端切换到为其分配的业务中转台进行呼叫。
可见，在现有的集群通信系统中，终端的通信过程离不开业务中转台和控制管理中心，而业务中转台和控制管理中心无疑增加了集群通信系统的搭建成本。
发明内容
本发明实施例提供了基于集群系统的通信方法，目的在于解决因终端的通信过程必须由业务中转台和控制管理中心参与控制，而导致的集群通信系统的搭建成本高的问题。
为了实现上述目的，本发明实施例提供了以下技术方案：
一种基于集群系统的通信方法，包括：
第一中转台向终端发送自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台；
所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况，以便于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，所述终端利用所述第一中转台进行通信；当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用，如果所述终端没有参与所述第一中转台当前的数据通信，则所述终端接入所述自由中转台进行通信。
一种基于集群的通信方法，包括：
终端接收第一中转台发送的自由中转台的标识和所述第一中转台的状 态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台，所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况；
当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，所述终端利用所述第一中转台进行通信；
当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则所述终端接入所述自由中转台进行通信。
一种中转台，包括：
第一处理器，用于向终端发送自由中转台的标识和所述中转台自身的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台；所述中转台自身的状态信息携带有所述中转台自身的时隙信道被占用的情况；
所述第一存储器用于，存储所述第一处理器中运行的程序、以及所述程序运行过程中产生的数据。
一种终端，包括：
接收器，用于接收第一中转台发送的自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台，所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况；
第二处理器，用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，利用所述第一中转台进行通信；当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则接入所述自由中转台进行通信；
第二存储器，用于存储所述第二处理器中的程序、以及所述程序运行过程中产生的数据。
本实施例所述的方法及装置，当终端的主中转台中存在空闲的时隙信道时，终端优先在其主中转台上进行通信，当终端的主中转台繁忙时，终端转到自由中转台进行通信，因此，本实施例所述的方法，可以由中转台实现为终端调度时隙信道的功能，且中转台兼具数据通信和调度终端的功能，而无需用到控制管理中心和专门的控制中转台，所以，能够降低集群通信系统的搭建成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为集群通信系统的结构示意图；
图2为数字移动无线电通信系统的结构示意图；
图3为本发明实施例公开的一种基于集群系统的通信方法的流程图；
图4为本发明实施例公开的又一种基于集群系统的通信方法的流程图；
图5为本发明实施例公开的基于集群系统的通信方法中CACH的short LC的结构示意图；
图6为本发明实施例公开的基于集群系统的通信方法中Voice LC的结构示意图；
图7为本发明实施例公开的基于集群系统的通信方法中PreCSBK的结构示意图；
图8为本发明实施例公开的基于集群系统的通信方法中站点状态信息的结构示意图；
图9为本发明实施例公开的一种中转台的结构示意图；
图10为本发明实施例公开的一种终端的结构示意图；
图11为本发明实施例公开的又一种中转台的结构示意图；
图12为本发明实施例公开的又一种终端的结构示意图。
具体实施方式
本发明实施例应用于集群通信系统，本发明实施例中，以数字移动无线电(Digital Mobile Radio，DMR)为例，如图2所示，集群通信系统包括中转台和终端，其中，中转台具有中转频点，在DMR中，一个中转台对应两个逻辑信道时隙，即每增加一个中转频点，将会增加两个逻辑信道时隙，例如，在中转台1中，包括三个中转台(F1、F2和F3)，六个逻辑信道时隙。需要说明的是，在不同的时分多址通信系统中，一个中转台对应的逻辑信道时隙不同，例如，在时分多址四时隙通信过程中，一个中转台对应四个逻辑信道时隙，因此，本发明实施例仅以DMR为例说明，但并不限于此。
本发明实施例所述的方法能够支持单站集群模式或互联网协议(Internet Protocol，IP)互联多站集群模式。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进 行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例公开了一种基于集群系统的方法，应用于如图2所示的集群通信系统，在所述集群通信系统中，预先设定中转台F1为终端G1、G2、和G3的主中转台，中转台F2为终端G4、G5和G6的主中转台，中转台F3为终端G7、G8和G8的中转台，本实施例中，可以采用按照终端的数量平均分配的方式为终端指定主中转台，也可以采用其它方式，例如任意指定的方式为终端分配主中转台的。本实施例中，所述集群通信系统可以为扩展式集群通信系统。
如图3所示，本实施例所述的方法包括：
S301：第一中转台(F1、F2或F3中的任意一个)向终端(所有终端G1至G9)发送自由中转台的标识和所述第一中转台的状态信息；
其中，自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台。本实施例中，可以依据各个中转台的序号，从预设类型的中转台中预先指定自由中转台，例如，F1、F2和F3均具有空闲的时隙信道，则预先指令中转台F1为自由中转台。
S302：终端接收第一中转台发送的自由中转台的标识和所述第一中转台的状态信息；
S303：当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且所述第一中转台为所述终端的预定主中转台后，所述终端利用所述第一中转台进行通信；
本实施例中，终端利用第一中转台进行通信包括终端在第一中转台进行监听，或者，在第一中转台上发起呼叫，或者，在第一中转台上接收呼叫。
S304：当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则所述终端接入所述自由中转台进行通信。
以图2为例，G1、G2和G3开机后均在F1监听，假设F1中的时隙信道1被占用，时隙信道2空闲，预先指定F2为自由中转台，F1向通话组G1至G3的组成员发送F2的标识和自身的状态信息，告知F1覆盖范围下的终端自身的时隙信道被占用的情况，每个终端对收到的F1的状态信息进行解析，确定F1中存在空闲的时隙信道，则G1、G2和G3的组成员在F1进行监听或呼叫。
又例如，G1、G2和G3开机后均在F1监听，假设F1中的全部时隙信 道均被占用，预先指定F2为自由中转台，F1向通话组G1至G3的组成员发送F2的标识和自身的状态信息，告知G1至G3的组成员自身的时隙信道被占用的情况，每个终端对收到的F1的状态信息进行解析，确定F1中的全部时隙信道均被占用，则F1覆盖范围下的未参与呼叫的终端接入F2进行监听。
从上述过程可以看出，终端根据它的主中转台广播的信息来判断它是在自己的主中转台的空闲时隙信道上发起呼叫，还是切换到自由中转台进行通信，因此，本实施例所述的方法，可以由中转台实现为终端调度时隙信道的功能，且中转台兼具数据通信和调度终端的功能，而无需用到控制管理中心和专门的控制中转台，所以，能够降低集群通信系统的搭建成本。
除此以外，本实施例所述的方法，因为当终端的主中转台繁忙时，终端能够接入自由中转台进行通信，所以，终端能够共享信道资源，从而提升了终端的接入成功率和信道的利用率，同时，与现有技术相比，终端不必在控制信道上排队等候控制信道的释放，不必在呼叫前先进行控制信道到业务信道的切换，因此当终端发起呼叫时，能够减少呼叫建立的时延。
本发明实施例公开的又一种基于集群系统的通信方法，应用于图2所示的集群通信系统，如图4所示，本实施例所述的方法包括：
S401：当第一中转台(F1、F2或F3中的任意一个)中的时隙信道全部被占用时，第一中转台在被占用的时隙信道向终端(所有终端G1至G9)发送公共通知信道(Common Announcement Channel，CACH)的短链路控制(Short Link Control，Short LC)信令和以下信令中的一种：语音链路控制信令Voice LC，以及预载波信令(Pre Control signaling Block，PreCSBK)；
本实施例中，第一中转台可以实时监测自身的时隙信道的被占用情况，只要自身的时隙信道均被占用时，则触发执行S401。
当中转台中时隙信道全部被占用时，说明中转台处于非空闲的工作状态，中转台有可能在向终端转发语音数据、短消息或控制信令，因此，中转台除了向终端发送CACH的short LC之外，还可能包括语音链路控制信令Voice LC及预载波信令PreCSBK的其中一种。
本实施例中，CACH的short LC中携带自由中转台的标识，CACH中携带所述第一中转台中各个时隙信道被占用的状态信息，通常，可以通过设置CACH中的接入类型(Access Type，AT)的值，来指示时隙信道是否被占用。Voice LC及PreCSBK中携带自由中转台的标识。
short LC本实施例中，CACH的short LC如图5所示，其中各部分的注解如表1所示：
表1
Figure PCTCN2014095924-appb-000001
Figure PCTCN2014095924-appb-000002
Voice LC如图6所示，其中各部分的注解如表2所示：
表2
Figure PCTCN2014095924-appb-000003
PreCSBK如图7所示，其中各部分的注解如表3所示：
表3
Figure PCTCN2014095924-appb-000004
Figure PCTCN2014095924-appb-000005
S402：当所述终端从所述第一中转台发送的CACH的short LC中解析出所述第一中转台存在空闲的时隙信道后，且预先设定的主中转台为所述第一中转台后，如果其它中转台上没有对于所述终端的呼叫，则所述终端连接到所述第一中转台进行通信；
S403：当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端驻留在第一中转台但没有参与所述第一中转台当前的数据通信，则所述终端接入所述自由中转台进行通信，如果所述终端参与了第一中转台当前的数据通信，则继续驻留在第一中转台完成通信过程。
本实施例中，在CACH的short LC中携带自由中转台的标识通知终端，同时终端又能够从CACH的short LC中获知第一中转台中的时隙信道被占 用的情况，因此，如果终端的主中转台为第一中转台，并且第一中转台中有空闲的时隙信道，则终端可以优先在第一中转台进行通信，而如果第一中转台中所有的时隙信道均被占用，则终端可以切换到自由中转台进行通信，而不必在第一中转台排队等候。
在Voice LC及PreCSBK中也携带自由中转台的标识，能够使得在中转台转发呼叫、短消息或控制信令等业务的时候让终端仍然能够获知自由中转台的标识。
S404：当所述第一中转台中的时隙信道空闲或部分被占用时，所述第一中转台向终端发送CACH的short LC和站点状态信息；
其中，站点状态信息包括站点中每个中转台各个时隙信道被占用的情况以及所述自由中转台的标识。
本实施例中，可选地，第一中转台可以以预设周期向终端广播发送CACH的short LC和站点状态信息，因为第一中转台空闲，所以，周期性广播能够避免一个频点进行长时间的发射。
本实施例中，站点状态信息如图8所示，其中各部分的注解如表4所示：
表4
Figure PCTCN2014095924-appb-000006
Figure PCTCN2014095924-appb-000007
本实施例中，第一中转台可以为集群中的任意一个中转台。除了第一中转台之外，当所述预设类型的中转台的时隙信道全部空闲时，所述预设类型的中转台周期性的发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息。终端接收到站点状态信息后，可以解析出自身的主中转台当前的状态和自由中转台的标识，在终端没有进行数据收发的情况下，如果自身的主中转台有空闲的时隙信道，则终端返回到自身的主中转台，否则，终端接入自由中转台进行通信。
终端用户通过接收系统广播的站点状态信息可以知道站点内每个中转台(包括主中转台)的通信情况，可以获悉当前的自由中转台，主中转台状态，以便终端用户可以快速切换到转发自己呼叫的中转频点接入呼叫、主中转台繁忙快速切换到自由中转台监听、呼叫结束再快速回到自己的主中转台，提高扩展式集群系统的呼叫接入性能。
需要说明的是，以上实施例中，自由中转台的设定可以遵从以下规则：
自由中转台从空闲的中转台列表中选取，在同一时间点，一个站点内只会存在一个自由中转台。当所述自由中转台中的所有时隙信道均被占用时，所述自由中转台按照预设的规则，从所述预设类型的中转台中重新确定自由中转台。
可选地，自由中转台可以按照各个中转台的序号，从空闲的中转台中指定新的自由中转台。例如，图2中，当上一个自由中转台F2的两个时隙都被占用时，它将变成繁忙中转台，F2指定一个新的自由中转台F3，依据以上实施例所述的方法，停留在它上面的未参与呼叫的G5和G6通话组成员，将依据接收到的信息，切换到新的自由中转台F3。
也就是说，新的自由中转台总是由上一个自由中转台指定，如果自由中转台出现异常，站点内其它中转台检测到掉线后，由每个中转台自行判断是否需要继承为自由中转台。例如：R3异常，R4将会继承为新的自由中转台。
在自由中转台变更后，站点内的所有中转台需要进行自由中转台的变更，在上述实施例中，所述第一中转台或所述预设类型的中转台接收到更新的自由中转台信息后，在其向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK中更新嵌入的自由中转台信 息。
在上述实施例中，可选地，还可以包括以下情况：
1、当所述终端在接收呼叫或呼叫保持期间发起新呼叫时，所述终端检测其主中转台是否包括空闲的信道时隙；
如果所述终端检测到其主中转台包括空闲的时隙信道，则所述终端结束接收呼叫，并切换到其主中转台上发起新呼叫，否则，所述终端结束接收呼叫，并切换到所述自由中转台发起新呼叫。
例如，如图2所示，组成员A写频配置可以接收通话组G1、G2的呼叫，组成员A在F1的时隙1接收组呼G1的呼叫时，如果组成员A有急事需要发起呼叫G2的呼叫，组成员A结束接收G1的呼叫，使用它的主中转台F1的空闲信道时隙2发起呼叫G2的呼叫。
组成员B写频配置可以接收通话组G2、G3的呼叫，组成员B在F1的时隙2接收组呼G2的呼叫时，如果组成员B有急事需要发起呼叫G3的呼叫，但是它的主中转台没有空闲时隙，组成员B结束接收G2的呼叫，切换到自由中转台F2使用它的空闲信道时隙1发起呼叫G3的呼叫。
如果所述终端接收呼叫或呼叫保持的中转台既不是所述终端的主中转台也不是当前的自由中转台，则在所述终端检测其主中转台是否包括空闲的信道时隙之前，所述终端先切换到其主中转台，检测其主中转台是否包括空闲的信道时隙，如果所述终端检测到其主中转台包括空闲的时隙信道，则所述终端结束接收呼叫，并切换到其主中转台上发起新呼叫，否则，所述终端结束接收呼叫，并切换到所述自由中转台发起新呼叫。
2、当所述第一中转台、预设类型的中转台或自由中转台接收到所述终端发送的语音链接结束帧时，如果接收到所述语音链接结束帧的中转台空闲，则在预设时间内广播所述语音链接结束帧，当超过所述预设时间后，所述接收到所述语音链接结束帧的中转台发送站点状态信息；
如果所述终端在呼叫保持期间发起回呼，则使用所述呼叫保持的时隙信道进行回呼，终端接收到站点状态信息，表示本次呼叫真正的结束。
与上述方法实施例相对应地，本发明实施例还公开了一种中转台，如图9所示，包括：获取模块901，用于获取自由中转台的标识；以及发送模块902。
其中，发送模块902，用于向终端发送自由中转台的标识和所述中转台的状态信息，所述自由中转台从至少存在一个空闲的时隙信道的中转台中预先指定，所述中转台的状态信息携带有所述中转台的时隙信道被占用的情况，以便于当所述终端从所述中转台的状态信息中解析出所述中转台存在空闲的时隙信道，且预先设定的主中转台为所述中转台后，所述终端 利用所述中转台进行通信；当所述终端从所述中转台的状态信息中解析出所述中转台的全部时隙信道均被占用，如果所述终端没有参与所述中转台当前的数据通信，则所述终端接入所述自由中转台进行通信。
可选地，所述发送模块向终端发送自由中转台的标识和所述中转台的状态信息的具体实现方式可以为：
当所述第一中转台中时隙信道全部被占用时，发送模块向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK；
所述数字移动无线电协议中公共通知信道CACH中携带所述中转台中各个时隙信道被占用的状态信息，所述数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC中携带自由中转台的标识，所述语音链路控制信令Voice LC或预载波信令PreCSBK中携带自由中转台的标识。
可选地，本实施例所述的发送模块还可以用于：
当所述中转台中的时隙信道空闲或部分被占用时，向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息，其中，站点状态信息包括站点中每个中转台各个时隙信道被占用的情况以及所述自由中转台的标识。
可选地，所述发送模块当所述中转台中的时隙信道空闲或部分被占用时，向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息的具体实现方式可以为：
当所述中转台的时隙信道全部空闲时，所述发送模块周期性的发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息。
所述中转台还可以包括：确定模块903，用于当所述自由中转台中的所有时隙信道均被占用时，按照预设的规则，从所述预设类型的中转台中重新确定自由中转台，并通知站内的其它中转台更新自由中转台信息。
可选地，所述发送模块还可以用于：接收到更新的自由中转台信息后，在其向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK中更新嵌入的自由中转台信息。
所述发送模块还用于：当接收到所述终端发送的语音链接结束帧时，如果接收到所述语音链接结束帧的中转台空闲，则在预设时间内广播所述语音链接结束帧，当超过所述预设时间后，所述接收到所述语音链接结束帧的中转台发送站点状态信息。
本实施例所述的中转台，将时隙信道被占用的情况和预先指定的自由 中转台的标识发送给终端，因此，当其应用在集群通信系统中时，具备了调度终端的功能，而无需集群系统中再设置控制管理中心和专门的控制中转台，从而节约集群通信系统的搭建成本。
本发明实施例还公开了一种终端，如图10所示，包括：
接收模块1001，用于接收第一中转台发送的自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台，所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况；
第一通信模块1002，用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，利用所述第一中转台进行通信；当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则接入所述自由中转台进行通信。
其中，所述第一通信模块1002用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，所述终端利用所述第一中转台进行通信的具体实现方式包括：
所述第一通信模块1002用于，当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道后，且先设定的主中转台为所述第一中转台后，如果其它中转台上没有对于所述终端的呼叫，则连接到所述第一中转台进行通信。
可选地，所述终端还包括：
第二通信模块1003，用于接收到所有中转台的状态信息后，解析出所述终端的主中转台当前的状态和自由中转台的标识，在没有进行数据收发的情况下，如果所述终端的主中转台有空闲的时隙信道，则返回到所述终端的主中转台，否则，接入所述自由中转台进行通信。
第三通信模块1004，用于当所述终端在接收呼叫或呼叫保持期间发起新呼叫时，检测所述终端的主中转台是否包括空闲的信道时隙，如果所述终端的主中转台包括空闲的时隙信道，则结束接收呼叫，并切换到所述终端的主中转台上发起新呼叫，否则，结束接收呼叫，并切换到所述自由中转台发起新呼叫。所述第三通信模块1004还用于：
如果所述终端接收呼叫或呼叫保持的中转台既不是所述终端的主中转台也不是当前的自由中转台，则在检测所述终端的主中转台是否包括空闲的信道时隙之前，切换到所述终端的主中转台；以及，如果所述终端在呼 叫保持期间发起回呼，则使用所述呼叫保持的时隙信道进行回呼。
本实施例所述的终端，能够通过接收中转台发送的信息，优先在主中转台上通信，当主中转台繁忙时，自动转入自由中转台，因此，能够减少集群通信系统中通信的时延。
本申请实施例还公开了又一种中转台，如图11所示，包括：
第一处理器1101及第一存储器1102；
其中，第一处理器1101用于向终端发送自由中转台的标识和所述中转台自身的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台；所述中转台的状态信息携带有所述中转台的时隙信道被占用的情况，以便于当所述终端从所述中转台的状态信息中解析出所述中转台存在空闲的时隙信道，且预先设定的主中转台为所述中转台后，所述终端利用所述中转台进行通信；当所述终端从所述中转台的状态信息中解析出所述中转台的全部时隙信道均被占用，如果所述终端没有参与所述中转台当前的数据通信，则所述终端接入所述自由中转台进行通信；
所述第一存储器1102用于，存储所述第一处理器中运行的程序、以及所述程序运行过程中产生的数据。
进一步地，第一处理器向终端发送自由中转台的标识和所述中转台自身的状态信息的具体实现方式可以为：当所述中转台中的时隙信道全部被占用时，第一处理器用于：向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK；
所述数字移动无线电协议中公共通知信道CACH中携带所述中转台中各个时隙信道被占用的状态信息，所述数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC中携带自由中转台的标识，所述语音链路控制信令Voice LC或预载波信令PreCSBK中携带自由中转台的标识。
所述第一处理器还可以用于：当所述中转台中的时隙信道空闲或部分被占用时，向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息，其中，站点状态信息包括站点中每个中转台各个时隙信道被占用的情况以及所述自由中转台的标识。进一步地，当所述中转台中的时隙信道空闲或部分被占用时，向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息的具体实现方式可以为：当所述中转台的时隙信道全部空闲时，所述第一处理器还用于周期性的发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息。
所述第一处理器1101还可以用于，当所述自由中转台中的所有时隙信 道均被占用时，按照预设的规则，从所述预设类型的中转台中重新确定自由中转台，并通知站内的其它中转台更新自由中转台信息；
进一步地，本实施例中，所述第一处理器还可以用于：接收到更新的自由中转台信息后，在其向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK中更新嵌入的自由中转台信息。
所述第一处理器还可以用于：当接收到所述终端发送的语音链接结束帧时，如果接收到所述语音链接结束帧的中转台空闲，则在预设时间内广播所述语音链接结束帧，当超过所述预设时间后，所述接收到所述语音链接结束帧的中转台发送站点状态信息。
本实施例所述的集群通信系统中的中转台具备了调度终端的功能，而无需集群系统中再设置控制管理中心和专门的控制中转台，从而节约集群通信系统的搭建成本。同时，第一中转台、预设类型的中转台和自由中转台间的配合，能够使得对终端的调度更为灵活。
本申请实施例还公开了一种终端，如图12所示，包括：
接收器1201，用于接收第一中转台发送的自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台，所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况；
第二处理器1202，用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，利用所述第一中转台进行通信；当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则接入所述自由中转台进行通信；
第二存储器1203，用于存储所述第四处理器中的程序、以及所述程序运行过程中产生的数据。
其中，具体地，第二处理器1202用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，利用所述第一中转台进行通信的具体实现方式可以为：所述第四处理器用于，当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且先设定的主中转台为所述第一中转台后，如果其它中转台上没有对于所述终端的呼叫，则连接到所述第一中转台进行通信。
第二处理器1202还可以用于：接收到所有中转台的状态信息后，解析 出所述终端的主中转台当前的状态和自由中转台的标识，在没有进行数据收发的情况下，如果所述终端的主中转台有空闲的时隙信道，则返回到所述终端的主中转台，否则，接入所述自由中转台进行通信；以及当所述终端在接收呼叫或呼叫保持期间发起新呼叫时，检测所述终端的主中转台是否包括空闲的信道时隙，如果所述终端的主中转台包括空闲的时隙信道，则结束接收呼叫，并切换到所述终端的主中转台上发起新呼叫，否则，结束接收呼叫，并切换到所述自由中转台发起新呼叫；以及，如果所述终端接收呼叫或呼叫保持的中转台既不是所述终端的主中转台也不是当前的自由中转台，则在检测所述终端的主中转台是否包括空闲的信道时隙之前，切换到所述终端的主中转台；以及，如果所述终端在呼叫保持期间发起回呼，则使用所述呼叫保持的时隙信道进行回呼。
本实施例所述的终端，能够通过接收中转台发送的信息，优先在主中转台上通信，当主中转台繁忙时，自动转入自由中转台，因此，能够减少集群通信系统中通信的时延。
本申请实施例还公开了一种集群通信系统，包括图9所示的中转台及图10所示的终端，或者，包括图11所示的中转台及图12所示的终端。
本实施例方法所述的功能如果以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设备可读取存储介质中。基于这样的理解，本发明实施例对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该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设备(可以是个人计算机，服务器，移动计算设备或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (24)

  1. 一种基于集群系统的通信方法，其特征在于，包括：
    第一中转台向终端发送自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台；
    所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况，以便于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道。
  2. 根据权利要求1所述的方法，其特征在于，所述第一中转台向终端发送自由中转台的标识和所述第一中转台的状态信息包括：
    当所述第一中转台中的时隙信道全部被占用时，所述第一中转台向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK；
    所述数字移动无线电协议中公共通知信道CACH中携带所述第一中转台中各个时隙信道被占用的状态信息，所述数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC中携带自由中转台的标识，所述语音链路控制信令Voice LC或预载波信令PreCSBK中携带自由中转台的标识。
  3. 根据权利要求1或2所述的方法，其特征在于，还包括：
    在所述第一中转台中的时隙信道空闲或部分被占用时，所述第一中转台向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息，其中，站点状态信息包括站点中每个中转台各个时隙信道被占用的情况以及所述自由中转台的标识。
  4. 根据权利要求3所述的方法，其特征在于，在所述第一中转台作为所述自由中转台的情况下，还包括：
    当所述第一中转台中的所有时隙信道均被占用时，所述第一中转台按照预设的规则，从所述预设类型的中转台中重新确定新的自由中转台；
    所述第一中转台通知站内的其它中转台更新自由中转台信息。
  5. 根据权利要求6的方法，其特征在于，还包括：
    所述第一中转台接收到更新的自由中转台信息后，在其向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK中更新嵌入的自由中转台信息。
  6. 根据权利要求1所述的方法，其特征在于，还包括：
    当所述第一中转台接收到所述终端发送的语音链接结束帧时，如果接收到所述语音链接结束帧的中转台空闲，则在预设时间内广播所述语音链 接结束帧，当超过所述预设时间后，所述接收到所述语音链接结束帧的中转台发送站点状态信息。
  7. 一种基于集群的通信方法，其特征在于，包括：
    终端接收第一中转台发送的自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台，所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况；
    当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，所述终端利用所述第一中转台进行通信；
    当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则所述终端接入所述自由中转台进行通信。
  8. 根据权利要求7所述的方法，其特征在于，所述当终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台为后，所述终端利用所述第一中转台进行通信包括：
    当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且先设定的主中转台为所述第一中转台后，如果其它中转台上没有对于所述终端的呼叫，则所述终端连接到所述第一中转台进行通信。
  9. 根据权利要求7或8所述的方法，其特征在于，还包括：
    终端接收到所有中转台的状态信息后，解析出自身的主中转台当前的状态和自由中转台的标识，在终端没有进行数据收发的情况下，如果自身的主中转台有空闲的时隙信道，则终端返回到自身的主中转台，否则，终端接入所述自由中转台进行通信。
  10. 根据权利要求9所述的方法，其特征在于，还包括：当所述终端在接收呼叫或呼叫保持期间发起新呼叫时，所述终端检测其主中转台是否包括空闲的信道时隙；
    如果所述终端检测到其主中转台包括空闲的时隙信道，则所述终端结束接收呼叫，并切换到其主中转台上发起新呼叫，否则，所述终端结束接收呼叫，并切换到所述自由中转台发起新呼叫。
  11. 根据权利要求10所述的方法，其特征在于，如果所述终端接收呼叫或呼叫保持的中转台既不是所述终端的主中转台也不是当前的自由中转台，则在所述终端检测其主中转台是否包括空闲的信道时隙之前，还包括：
    所述终端切换到其主中转台。
  12. 一种中转台，其特征在于，包括：
    第一处理器，用于向终端发送自由中转台的标识和所述中转台自身的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台；所述中转台自身的状态信息携带有所述中转台自身的时隙信道被占用的情况；
    所述第一存储器用于，存储所述第一处理器中运行的程序、以及所述程序运行过程中产生的数据。
  13. 根据权利要求12所述的中转台，其特征在于，所述第一处理器向终端发送自由中转台的标识和所述中转台自身的状态信息，具体包括：
    所述第一处理器在所述中转台中的时隙信道全部被占用时，向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK；
    所述数字移动无线电协议中公共通知信道CACH中携带所述中转台中各个时隙信道被占用的状态信息，所述数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC中携带自由中转台的标识，所述语音链路控制信令Voice LC或预载波信令PreCSBK中携带自由中转台的标识。
  14. 根据权利要求12或13所述的中转台，其特征在于，所述第一处理器还用于：
    在所述中转台自身的时隙信道空闲或部分被占用时，向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和站点状态信息，其中，站点状态信息包括站点中每个中转台各个时隙信道被占用的情况以及所述自由中转台的标识。
  15. 根据权利要求14所述的中转台，其特征在于，所述第一处理器还用于：
    在所述第一中转台作为所述自由中转台的情况下，
    在所述中转台自身的所有时隙信道均被占用时，按照预设的规则，从所述预设类型的中转台中重新确定自由中转台，并通知站内的其它中转台更新自由中转台信息。
  16. 根据权利要求15所述的中转台，其特征在于，所述第一处理器还用于：
    接收到更新的自由中转台信息后，在其向所述终端发送数字移动无线电协议中公共通知信道CACH的短链路控制信令Short LC和以下信令中的一种：语音链路控制信令Voice LC，或预载波信令PreCSBK中更新嵌入的自由中转台信息。
  17. 根据权利要求16所述的中转台，其特征在于，所述第一处理器还用于：
    当接收到所述终端发送的语音链接结束帧时，如果接收到所述语音链接结束帧的中转台空闲，则在预设时间内广播所述语音链接结束帧，当超过所述预设时间后，所述接收到所述语音链接结束帧的中转台发送站点状态信息。
  18. 一种终端，其特征在于，包括：
    接收器，用于接收第一中转台发送的自由中转台的标识和所述第一中转台的状态信息，所述自由中转台为从预设类型的中转台中预先指定的中转台，所述预设类型的中转台为至少存在一个空闲的时隙信道的中转台，所述第一中转台的状态信息携带有所述第一中转台的时隙信道被占用的情况；
    第二处理器，用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，利用所述第一中转台进行通信；当所述终端从所述第一中转台的状态信息中解析出所述第一中转台的全部时隙信道均被占用后，如果所述终端没有参与所述第一中转台当前的数据通信，则接入所述自由中转台进行通信；
    第二存储器，用于存储所述第二处理器中的程序、以及所述程序运行过程中产生的数据。
  19. 根据权利要求18所述的终端，其特征在于，所述第二处理器用于当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且预先设定的主中转台为所述第一中转台后，利用所述第一中转台进行通信，具体包括：
    所述第二处理器用于，当所述终端从所述第一中转台的状态信息中解析出所述第一中转台存在空闲的时隙信道，且先设定的主中转台为所述第一中转台后，如果其它中转台上没有对于所述终端的呼叫，则连接到所述第一中转台进行通信。
  20. 根据权利要求18或19所述的终端，其特征在于，所述第二处理器还用于：接收到所有中转台的状态信息后，解析出所述终端的主中转台当前的状态和自由中转台的标识，在没有进行数据收发的情况下，如果所述终端的主中转台有空闲的时隙信道，则返回到所述终端的主中转台，否则，接入所述自由中转台进行通信。
  21. 根据权利要求20所述的终端，其特征在于，所述第二处理器还用于：
    当所述终端在接收呼叫或呼叫保持期间发起新呼叫时，检测所述终端的主中转台是否包括空闲的信道时隙，如果所述终端的主中转台包括空闲的时隙信道，则结束接收呼叫，并切换到所述终端的主中转台上发起新呼叫，否则，结束接收呼叫，并切换到所述自由中转台发起新呼叫。
  22. 根据权利要求21所述的终端，其特征在于，所述第二处理器还用于：
    如果所述终端接收呼叫或呼叫保持的中转台既不是所述终端的主中转台也不是当前的自由中转台，则在检测所述终端的主中转台是否包括空闲的信道时隙之前，切换到所述终端的主中转台。
  23. 根据权利要求20或21所述的终端，其特征在于，所述第二处理器还用于：如果所述终端在呼叫保持期间发起回呼，则使用所述呼叫保持的时隙信道进行回呼。
  24. 一种集群式通信系统，其特征在于，包括权利要求12至17任一项所述的中转台，以及权利要求18至23任一项所述的终端。
PCT/CN2014/095924 2014-03-26 2014-12-31 一种基于集群系统的通信方法及装置 WO2015143913A1 (zh)

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