WO2006131047A1 - Procédé et système pour localisation en temps réel de la station mobile de multidiffusion/d'appel de groupe - Google Patents

Procédé et système pour localisation en temps réel de la station mobile de multidiffusion/d'appel de groupe Download PDF

Info

Publication number
WO2006131047A1
WO2006131047A1 PCT/CN2006/000995 CN2006000995W WO2006131047A1 WO 2006131047 A1 WO2006131047 A1 WO 2006131047A1 CN 2006000995 W CN2006000995 W CN 2006000995W WO 2006131047 A1 WO2006131047 A1 WO 2006131047A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile station
multicast
group call
sdcch
group
Prior art date
Application number
PCT/CN2006/000995
Other languages
English (en)
Chinese (zh)
Inventor
Zhili Xia
Original Assignee
Shanghai Huawei Technologies Co., Ltd.
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 Shanghai Huawei Technologies Co., Ltd. filed Critical Shanghai Huawei Technologies Co., Ltd.
Publication of WO2006131047A1 publication Critical patent/WO2006131047A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • 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
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to a communication method of a trunking communication system based on a public communication network, and more particularly to a method and system for real-time positioning of a group call/multicast mobile station in a group call/multicast process of a trunking communication system.
  • the trunking communication system is a more economical and flexible command and dispatch communication system developed in recent years. It is widely used in government agencies, energy transportation, airport terminals, industrial and mining enterprises, fire police, water conservancy and military units to meet each The need for internal communication of the unit.
  • the trunking communication system uses a cluster private network to build a networking.
  • each group independently builds a cluster private network, the technology and test-making between groups are not uniform, so it is easy to form a separate construction situation, resulting in low frequency utilization efficiency, network construction costs, and high network maintenance costs.
  • the network construction of cluster communication network has shown a trend of development from independent cluster private network construction to cluster public network construction.
  • GSM global mobile communication system
  • GSM-R Global System for Mobile Communications
  • GSM communication network uses GSM communication network as the service bearer and can complete basic group call (VGCS) / multicast (VBS) and other trunking communication services.
  • VGCS basic group call
  • VBS multicast
  • Basic voice dispatch call function is a call that multiple mobile stations participate at the same time, wherein the speaker mobile station can receive and send information, the listener mobile station can only receive information, and the speaker mobile station can change; the multicast is a special type
  • the group call special in its speaker mobile station can not be changed.
  • the GSM communication network used to be mainly for the public, and related services were more suitable for public services. Some special requirements for the cluster communication system could not be met.
  • the mobile station (MS) in the group call/multicast needs to be located in real time, that is, the network side needs to know the real-time cell-level location information of each mobile station in the specified group call/multicast.
  • the network side needs to know the real-time cell-level location information of each mobile station in the specified group call/multicast.
  • the specific location parameters include the cell identity of the mobile station and the distance from the base station in the cell.
  • the positioning method is as follows: The mobile station reports the location information by occupying the uplink resource, and the network side locates the mobile station according to the reported location information. . Since the group call/multicast is a group of mobile stations, if the existing positioning method utilizes a large amount of uplink resources, the existing GSM-based trunking communication system cannot implement the group call. /Multicast mobile station for real-time positioning. Summary of the invention
  • the main object of the present invention is to provide a method for real-time positioning of a group call/multicast mobile station, so that the network communication system based on the public network can be specified at any time during the group call/multicast process.
  • the mobile station in the group call/multicast group is positioned to facilitate the command and dispatch of the cluster communication system.
  • Another object of the present invention is to provide a system for real-time positioning of a group call/multicast mobile station, so that the cluster communication system based on the public network can call the designated group at any time during the group call/multicast process.
  • the multicast station in the multicast group is positioned to facilitate the command and dispatch of the trunking communication system.
  • a method for real-time positioning of a group call/multicast mobile station which is suitable for public network-based
  • the cluster communication system divides the SDCCH channel into multiple SDCCH subchannels; assigns the divided SDCCH subchannels to the group call/multicast, and sends the description information of the allocated SDCCH subchannels to the group call/group All mobile stations in the broadcast; the respective mobile stations learn the allocated SDCCH subchannel according to the description information of the SDCCH subchannel, and determine that the location of the access burst sequence AB is reported in the allocated SDCCH subchannel, The reporting location periodically reports the AB carrying its own information; the network side receives the AB on the SDCCH subchannel allocated for the group call/multicast, and locates the mobile station according to the location of the AB and the mobile station information carried by the AB. .
  • the specific method for dividing the SDCCH subchannel is: dividing the SDCCH channel according to a division manner in which each of the SDCCH subchannels occupies one burst sequence BURST in N 2x51 multiframes, where N is a positive integer .
  • the specific method for allocating the divided SDCCH subchannels for the group call/multicast is: one group call/multicast correspondingly assigning one or more SDCCH subchannels.
  • the method for the mobile station to determine that it reports the AB position in the allocated SDCCH subchannel is:
  • the length of the AB is 8 bits
  • the information of the mobile station carried by the AB is the intra-group number information of the mobile station, specifically: a value obtained by modulo Num-id to 256.
  • the network side according to the location of the received AB and the mobile station letter carried by the AB
  • the method for locating the mobile station is: verifying the AB according to the location of the receiving AB and the mobile station information carried by the AB. After the verification succeeds, determining, by receiving the position of the AB, receiving the cell identifier of the AB and 4. The distance between the mobile station of the AB and the base station of the cell completes the positioning of the mobile station.
  • the verification method is: calculating a value of ((FN) Mode ( Kmax - idxNxl02 ) ) Mode ( 256 ), where FN is a cell frame number corresponding to the received AB; determining the movement carried by the received AB Whether the station information is equal to the value of ((FN) Mode ( Kmax_idxN l02 ) ) Mode ( 256 ). If they are equal, the verification is successful, otherwise the verification fails.
  • the specific method for sending the description information of the allocated SDCCH subchannel to all mobile stations in the group call/multicast is: the network side notification of the cell involved in the group call/multicast
  • the group call/multicast identifier and the description information of the SDCCH subchannel allocated for the group call/multicast are periodically sent on the channel, and the mobile station in the cell obtains the group call/multicast by listening to the notification channel.
  • the specific method for sending the description information of the allocated SDCCH subchannel to all mobile stations in the group call/multicast is: the network side is in the downlink of the cell involved in the group call/multicast
  • the group of call/multicast identifiers and the description information of the SDCCH subchannels allocated for the group call/multicast are periodically sent on the fast associated control channel, and the mobile station in the cell monitors the downlink fast on-channel control
  • the channel obtains the description information of the group call/multicast identifier and the SDCCH subchannel, and determines whether the mobile station is subordinate to the group call/multicast by using the group call/multicast identifier, and accepts the SDCCH subchannel description information; Otherwise, no processing is done.
  • the public network is a mobile communication network based on a global mobile communication system.
  • the network side mainly includes a base station subsystem BSS, a mobile switching center MSC, a group call/multicast control register GCR, and a scheduling system; and the network side is a group call/multicast distribution station.
  • BSS base station subsystem
  • MSC mobile switching center
  • GCR group call/multicast control register
  • scheduling system a scheduling system
  • the network side is a group call/multicast distribution station.
  • the specific steps of sending the description information of the allocated SDCCH subchannels to all mobile stations in the group call/multicast are:
  • the scheduling system sends the group call/multicast identifier that needs real-time positioning to the MSC and the maximum number of mobile stations in the group of the group/multicast;
  • the MSC sends the group call/multicast identifier to the GCR.
  • the GCR queries the correspondence between the cell list of the group call/multicast mobile station and the group call/multicast identifier according to the received group call/multicast identifier; and obtains the cell list corresponding to the group call/multicast identifier. Returning the cell list information to the MSC;
  • the MSC queries the pre-set BSS and the cell identifier according to the received cell list information, obtains the BSS involved in the cell list, and the cell identifier corresponding to the BSS, and sends the group call/multicast identifier to the BSS. , the maximum number of mobile stations in the group, and the cell identifier corresponding to the BSS;
  • the BSS After receiving the group call/multicast identifier, the maximum number of mobile stations in the group, and the cell identifier corresponding to the BSS, the BSS allocates the divided SDCCH subchannel for the group call/multicast, and specifies the cell identifier in the group.
  • the notification message carrying the description information of the allocated SDCCH subchannel is sent in each of the cells, and the group call/multicast identifier and the maximum number of mobile stations in the group are further carried in the notification message.
  • the network side receives the AB on the SDCCH subchannel allocated for the group call/multicast, and the specific steps of locating the mobile station according to the location of the AB and the mobile station information carried by the AB are:
  • the BSS receives the AB reported by the mobile station on the SDCCH subchannel allocated for the group call/multicast, the maximum number of mobile stations in the group using the group call/multicast, the description information of the SDCCH subchannel, and the received AB.
  • the corresponding location is used to check the information carried by the AB. If the verification succeeds, the identifier of the cell base station that receives the AB and the distance between the mobile station reporting the AB and the cell base station are determined by using the AB, and the group call is performed. /multicast identity, the move The intra-group number, the identifier of the cell base station, and the distance between the mobile station and the cell base station are reported to the MSC, and step B is performed; if the verification fails, the AB is not processed;
  • the MSC forwards the group call/multicast identifier, the intra-group number of the mobile station, the identifier of the cell base station, and the distance between the mobile station and the cell base station to the scheduling system;
  • the scheduling system according to the group call/multicast identifier, the intra-group number of the mobile station, the identifier of the cell base station, and the distance between the mobile station and the cell base station to the group call/multicast mobile station Positioning.
  • a system for real-time positioning of a group call/multicast mobile station is set in a cluster communication system of a public network, including:
  • a channel division and allocation processing unit disposed on a network side of the trunking communication system, configured to divide the SDCCH channel into channel division units of multiple SDCCH subchannels, and allocate the divided SDCCH subchannels for group call/multicast, and And sending the description information of the allocated SDCCH subchannel to the mobile station in the group call/multicast;
  • a positioning information reporting unit configured to be located on the mobile station of the trunking communication system, configured to learn the allocated SDCCH subchannel according to the description information of the SDCCH subchannel received by the mobile station, and determine that the mobile station is in the allocated SDCCH sub The location of the AB is reported in the channel, and the AB carrying the mobile station information is periodically reported in the reporting position;
  • a positioning unit disposed on a network side of the trunking communication system, configured to receive an AB on an SDCCH subchannel allocated for the group call/multicast, and the mobile station according to the location of the AB and the mobile station information carried by the AB Positioning.
  • the channel division and allocation processing unit delivers the allocated SDCCH subchannel to the mobile station in the group call/multicast by using the network side on the notification channel of the group call/multicast involved cell. Descriptive information.
  • the channel division and allocation processing unit sends, by the network side, a mobile station in the group call/multicast on a downlink fast associated control channel of the group call/multicast involved cell.
  • the description information of the allocated SDCCH sub-channel is issued.
  • the positioning unit further includes a check unit: configured to check the AB according to the location of the receiving AB and the information carried by the AB.
  • the public network is a mobile communication network based on a global mobile communication system.
  • the channel division and allocation processing unit is disposed in a BSS of the trunking communication system; the positioning unit further includes a first positioning unit and a second positioning unit; the first positioning unit is disposed in the BSS, The identifier of the cell base station that receives the AB and the distance between the mobile station that reports the AB and the cell base station are determined by using the AB; the second positioning unit is disposed in the scheduling system of the trunking communication system, and according to the mobile station information reported by the AB And identifying, by the identifier of the cell base station, and the distance between the mobile station reporting the AB and the base station of the cell, the mobile station.
  • the mobile station of the group call/multicast Since the present invention divides the SDCCH channel of the global mobile communication system into a plurality of SDCCH subchannels and allocates them to multiple group call/multicast, the mobile station of the group call/multicast passes the AB cycle in real time on the allocated SDCCH subchannel. The local information is reported on the ground, and the network side locates the mobile station according to the reported AB, so that real-time positioning of the group call/multicast mobile station can be realized, which facilitates the command and dispatch communication of the cluster communication system during group call/multicast.
  • the mobile station in the present invention uses the access burst sequence (AB, Access Burst) to report information, and the time taken by an AB is very short, generally only 0.577 ms, so the listener moves the station to leave the group call when reporting information.
  • the time of the multicast channel is very short, the reporting speed is fast, and the normal communication of the mobile station is not affected, and has no effect on the basic services of the group call/multicast.
  • the present invention does not occupy the uplink of the group call/multicast channel, and has no influence on the communication between the mobile station and the network side, thereby avoiding waste of link resources.
  • the present invention determines the distance to which the mobile station belongs and the mobile station to the base station according to the AB reported by the mobile station in real time, the small group/multicast mobile station can be implemented.
  • Real-time location-level positioning that is, it can be known in which cell the mobile station in the group call/multicast is currently located, and how far away from the base station of the cell, and the positioning accuracy is high.
  • the BSS can send a notification message through the notification channel and the FACCH channel, and the mobile station in the idle state acquires the notification message by monitoring the notification channel, and the mobile station in the call mode can obtain the notification message by listening to the FACCH channel, so the present invention
  • the mobile station in the group in the idle state can be located, and the mobile station in the call mode can be located.
  • FIG. 1 is a schematic diagram of a physical channel mapped by a SDCCH channel in a GSM system
  • FIG. 2 is a flowchart of real-time positioning of a group call mobile station according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a system according to the present invention. . Mode for carrying out the invention
  • the present invention is applicable to a group call/multicast process of a trunked wireless communication system based on a public network.
  • the embodiment of the present invention describes the present invention by taking a cluster wireless communication system based on a GSM public network as an example.
  • the station shares a SDCCH channel. Since the SDCCH channel does not need to establish a link in advance, the mobile station only needs to report the AB to the fixed point, and the time used is extremely short, generally only a few ms, so it does not affect the normal communication of the listener's mobile station.
  • the SDCCH is a dedicated signaling channel
  • the physical channel mapped by the SDCCH is a plurality of time slots in the multiframe.
  • the invention uses a multiframe as a unit physical letter
  • the multiframe can be of different types.
  • 2x51 multiframe is used as a unit physical channel
  • 102 frames are used in each 2x51 multiframe
  • 8 SDCCHs are mapped in each 2x51 multiframe.
  • Each SDCCH is mapped on 12 time slots, which respectively occupy 12 burst sequences (BURST).
  • Figure 1 is a schematic diagram of the physical channel mapped by the SDCCH channel in the GSM system.
  • the 2x51 multiframe sequence is transmitted in a round-robin fashion, including 102 frames in each 2x51 multiframe, for example, 102 in 2x51 multiframes with frame numbers "0" and "N-1".
  • the SDCCH channel of the existing GSM system needs to be further subdivided. Divided into different SDCCH subchannels, assigned to different group calls/multicasts. The specific division of the subchannels can be performed according to the requirements of the operator.
  • each SDCCH subchannel occupies 12 BURSTs in a 2x51 multiframe, it is divided according to a 2x51 multiframe period, and one SDCCH channel can be divided into one subchannel;
  • each SDCCH subchannel occupies 6 BURSTs in a 2x51 multiframe, it is divided according to a 2x51 complex frame period, and one SDCCH channel can be divided into 2 subchannels;
  • each SDCCH subchannel occupies 4 BURSTs in a 2x51 multiframe, it is divided according to a 2x51 complex frame period, and one SDCCH channel can be divided into three subchannels;
  • each SDCCH subchannel occupies 3 BURSTs in a 2x51 multiframe, it is divided according to a 2x51 complex frame period, and one SDCCH channel can be divided into 4 subchannels;
  • each SDCCH subchannel occupies 2 BURSTs in a 2x51 multiframe, it is divided according to a 2x51 multiframe period, and one SDCCH channel can be divided into 6 subchannels; If each SDCCH subchannel occupies 1 BURST in a 2x51 multiframe, it is divided according to a 2x51 multiframe period, and one SDCCH channel can be divided into 12 subchannels;
  • each SDCCH subchannel occupies one BURST in two 2x51 multiframes, it is divided according to two 2x51 multiframe periods, one SDCCH channel can be divided into 24 subchannels; and so on.
  • each SDCCH subchannel occupies 1 BURST in N 2x51 multiframes, it is divided according to N 2x51 multiframe periods, and one SDCCH channel can be divided into Nxl2 subchannels; Nxl2 subchannels are respectively represented as SDCCH_subN(k) , k is 0, 1 , 2, k, k + 1, , ⁇ 12-1.
  • the type of SDCCH used in the above-mentioned type is determined according to the number of groups of group call/multicast services in GSM.
  • each SDCCH subchannel adopts a subchannel allocation mode in which one BURST is occupied by N 2x51 multiframes, where N is a positive integer.
  • each SDCCH is divided into a plurality of subchannels, and can support multiple groups. . For example: If the SDCCH subchannel is divided by 2x2x51 multiframe period (about 941 milliseconds), one SDCCH channel can be divided into 24 SDCCH subchannels, which can support 24 groups.
  • the foregoing is a specific method for the BSS to divide the SDCCH subchannel for the group call/multicast mobile station.
  • the divided SDCCH subchannel information is separately set and stored in the BSS system and the mobile station, for example, the SDCCH subchannel of this embodiment.
  • the information is SDCCH— subN ( k ) , k is 0, 1, 2, k, k + 1 , , NX12-L
  • the active area information of the supported group call mobile station is set in the group call control register (GCR) on the network side, and the active area is the approximate active range of all the mobile stations of the group call, and the active area information may be a group call.
  • the list of cells to which the mobile station belongs may also be a list of location areas, where the group call identifier (GID) is used as an index.
  • GID group call identifier
  • Step 201 The scheduling system on the network side sends a group call mobile station location request application message VGCS_Subscrber_Position-Req (GID, Kmaxjd) to the mobile switching center (MSC), where the message includes the GID of the group call that needs to be real-time located. And the maximum number of mobile stations (Kmax_id) in the group.
  • GID group call mobile station location request application message
  • Kmax_id the maximum number of mobile stations
  • Step 202 After receiving the VGCS-Subscrber_Position-Req (GID, Kmax_id) message, the MSC sends a group call area request message VGCS_Area-Req (GID) to the GCR, where the message carries the GID.
  • GID group call area request message
  • Step 203 After receiving the VGCS-Area-Req (GID) message, the GCR queries the pre-set cell list and searches for the approximate activity range information of the mobile station in the group.
  • the activity range information is the group.
  • a cell list of a cell to which the mobile station belongs in the call group the Cell list reflects the area of the group call; and then returns a group call mobile station location result message VGCS_Area_Result (Cell list) to the MSC, where the message includes Cell list.
  • Step 204 After receiving the VGCS-Area-Result (Cell list) message, the MSC queries the corresponding relationship between the cell and the BSS configured by the Cell list, and learns all the BSSs involved in the group call area.
  • Each of the BSSs in the group call area sends a group call mobile station location query message VGCS_Subscrber_Position_Req (GID, Cell_list_bss, Kmaxjd), and the message includes: a group call GID, the group call area is in the Cell list information Cell_list_bss in the BSS, the maximum number of mobile stations Kmax_id in the group of the group call.
  • Step 205 After receiving the VGCS_Subscrber_Position-Req (GID, Cell_list_bss, Kmax_id) message, each BSS in the group call area follows the stored SDCCH subchannel information SDCCH. —subN ( k ) , k is 0, 1 , 2, k, k + 1 , , ⁇ 12-1 , assigning one or more SDCCH subchannels to the group call whose group identity is GID, for the group Call the positioning of the mobile station; The correspondence between the GID, Kmax_id and the SDCCH subchannel is recorded.
  • multiple SDCCH subchannels may be allocated to one group call.
  • only one SDCCH subchannel is allocated to one group call as an example.
  • H is set as the SDCCH subchannel allocated by the current group call is SDCCH_subN(i), and each N of the SDCCH subchannels
  • the 2x51 multiframe period can be used to determine the mobile station positioning information in a group.
  • Which SDCCH subchannel is specifically allocated, that is, the specific value of the i may be in various manners, for example, may be in the order of GID, or may be valued according to a specific law, and the specific value is not discussed in this patent. The list, but to ensure that the assigned SDCCH subchannel is not assigned to other group calls.
  • Step 206 The BSS periodically sends a notification message Notification (GID, Kmax_id, SDCCH_subN(i)) on the notification channel of each cell listed in the Cell_list_bss received by the BSS, where The group call GID, the SDCCH subchannel description information SDCCH_subN(i) assigned to the group call, and the maximum number of mobile stations Kmax_id of the group.
  • the SDCCH subchannel description information includes a parameter i or includes parameters N and i.
  • Notification (GID, Kmax_id, SDCCH_subN(i)) may also be in the downlink fast associated control channel (FACCH) of each cell traffic channel. ) Send on the channel.
  • the present invention pre-stores GID list information of each group call subordinate to the subscription mobile station in the mobile station or in the SIM card, and the intra-group number information Num_id of the subordinate group of the subscription mobile station; a mobile station may belong to a different group. Call, and within each group call, there is a Num_id corresponding to the mobile station.
  • Step 207 On the mobile station side, the mobile station in the idle mode in the cell receives the notification message by monitoring the notification channel, where the mobile station receives the notification message by listening to the FACCH channel in the call mode; the mobile station is receiving After each notification message, it is determined whether the GID carried in the notification message is subordinate to the group call GID list stored by the mobile station, such as If yes, the mobile station decodes the SDCCH subchannel description information SDCCH_subN(i) in the notification message, and accepts that the SDCCH subchannel allocated by the network side for the group call identified as GID is SDCCH_subN(i), and simultaneously decodes the notification.
  • Step 208 The mobile station periodically reports the access pulse (AB, ACCESS BURST) at the location determined on the SDCCH-subN(i) subchannel, and the interval of the transmission interval is Kmax_idxNxl02; the AB described in this embodiment has 8 BIT, which carries the The intra-group number information of the mobile station, the value of 8BIT is (Num_id) Mode (256); the maximum binary number that can be represented by 8 bits is 11111111, so if the 8 bits are used to record the listener mobile station group
  • the internal ID can only represent up to 256 ID numbers. For a group call/multicast with more than 256 mobile stations in the group, the listener mobile station whose ID number is greater than 256 cannot be represented in the group.
  • listening The intra-group ID information of the mobile station is expressed as: MODE [ID/256]fur If 6 bits are used to record the ID information of the listener mobile station group in AB, then only 64 ID numbers can be identified, so AB in this case The ID information of the carried mobile station group can be MODE [ID/64].
  • FN is the unified frame number of the current mobile station's home cell. Since one frame corresponds to one AB, the FN is also the location where the current mobile station transmits AB; N indicates that the SDCCH subchannel is divided into Nx2x51 complex. The frame, N is carried in the SDCCH_subN(i) subchannel description in the above notification message; (FN) Mode (Kmax_idxN l02) indicates that the modulus of Kmax_idxNxl02 is taken for FN, ((FN) Mode (Kmax_idxNx102)) Integer (Nxl02) indicates (FN) Mode ( Kmax_idxN l02 ) divided by (Nxl02) After taking an integer.
  • the mobile station sequentially determines whether the cell frame number in the SDCCH subchannel conforms to the above formula (1), and if yes, determines that the cell frame number is the location frame of the mobile station in the SDCCH_subN(i) subchannel. No., reporting AB at the cell frame number position; otherwise, determining that the cell frame number is not the location frame number of the mobile station reporting the AB in the SDCCH_subN(i) subchannel.
  • Step 209 The BSS monitors AB in real time on the subchannel SDCCH_subN(i) of the group call that is identified as GID, determines the frame number FN of the frame corresponding to the received AB, and decodes the 8BIT value of the AB.
  • Step 210 The BSS calculates a value of ((FN) Mode ( Kmax — idxNxl02 ) ) Mode ( 256 ) according to the determined FN, the N in the subchannel description information SDCCH — subN ( i ), and the Kmax — id corresponding to the GID. And determining whether the 8BIT value of the AB is equal to the value of ((FN) Mode (Kmax_ idxNx 102)) Mode (256). If they are equal, the BSS determines that the AB is the location information reported by the group call mobile station identified as the GID. Go to step 210; No, ij, determine that AB is an interference signal, ignore the AB, and end the process.
  • Step 211 The BSS determines the distance information TA between the mobile station and the base station by using the AB according to the existing determining manner, and reports the group mobile station in-position message VGCS_Subscrber_Position (GID, Num_id, Cell_id) to the MSC. (TA), wherein the group call identifier GID, the group mobile station identifier Num_id of the group call, that is, the 8BIT value of the AB, the identifier Cell_id of the cell where the group mobile station is located, and the mobile station and Distance information TA of the base station.
  • the Cell_id may be determined according to an identifier of a base station that receives the AB.
  • Step 212 After receiving the VGCS-Subscrber_Location (GID, Num_id, Cell_id, TA) message, the MSC forwards the VGCS-Subscrber JPosition (GID, Num_id, Cell_id, TA) message to the scheduling system. .
  • GID Num_id, Cell_id, TA
  • Step 213 The scheduling system receives the VGCS-Subscrber_ Position (GID, Num_id, 5
  • the cell in which the mobile station identified as Num_id is located and the distance of the mobile station from the cell base station in the group call identified as GID can be known, so that the mobile station can be located. . Since the BSS monitors the AB on the subchannel SDCCH_subN(i) in real time, the mobile station in the group call can be located in real time. If the scheduling system supports display, the scheduling manager may be prompted to call the mobile station in place or record the mobile station in-position information in the group call mobile station location log.
  • all mobile stations in the group call can be located in real time and displayed in the scheduling system.
  • FIG. 3 the structural diagram of the positioning system of the present invention is shown in FIG. 3:
  • the positioning system can perform real-time positioning on the group call/multicast mobile station, and is set in the trunking communication system of the public network.
  • the public network can be a mobile communication network based on the global mobile communication system, and the positioning system includes:
  • a channel division and allocation processing unit configured in the BSS of the network side of the trunking communication system, for dividing the SDCCH channel into channel division units of multiple SDCCH subchannels, and allocating the divided SDCCH subchannels for group call/multicast And sending the description information of the allocated SDCCH subchannel to the mobile station in the group call/multicast.
  • the channel division and allocation processing unit may send, by using the network side, the description information of the allocated SDCCH subchannel to the mobile station in the group call/multicast on the notification channel of the group call/multicast involved cell. And the description information of the allocated SDCCH subchannel is sent to the mobile station in the group call/multicast by the network side on the downlink fast associated control channel of the group call/multicast related cell.
  • a positioning information reporting unit configured on the MS of the trunking communication system, configured to learn the allocated SDCCH subchannel according to the description information of the SDCCH subchannel received by the mobile station, and determine that the mobile station is in the allocated SDCCH subchannel In the position of the upper report AB, the AB carrying the mobile station information is periodically reported at the reporting position.
  • a positioning unit disposed on a network side of the trunking communication system, configured to be in the group call
  • the multicast is received on the SDCCH subchannel of the multicast, and the mobile station is located according to the location of the AB and the mobile station information carried by the AB.
  • the locating unit further includes a check unit, a first locating unit, and a second locating unit.
  • the check unit is disposed in the BSS, and is configured to check the AB according to the location of the receiving AB and the information carried by the AB.
  • the first positioning unit is disposed in the BSS, configured to determine, by using AB, an identifier of a cell base station that receives the AB, and a distance between the mobile station that reports the AB and the cell base station; and the second positioning unit is configured to perform cluster communication.
  • the mobile station is located according to the mobile station information reported by the AB, the identifier of the cell base station, and the distance between the mobile station reporting the AB and the cell base station.

Landscapes

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

Abstract

La présente invention concerne un procédé et un système pour la localisation en temps réel de la station mobile de multidiffusion/d'appel de groupe. Le procédé et le système conviennent pour un système de communication de mise en commun sur le réseau public. Ledit procédé comprend : la division d'un canal SDCCH en plusieurs sous-canaux et l'affectation de ces sous-canaux aux groupes de multidiffusion/d'appel de groupe et l'envoi des informations de description du sous-canal affecté à la station mobile ; chaque station mobile détermine son emplacement de rapport dans le sous-canal et renvoie la rafale d'accès (AB) transportant ses informations dans l'emplacement de rapport de manière périodique ; le côté réseau reçoit AB sur les sous-canaux affectés pour les groupes de multidiffusion/d'appel de groupe et situe la station mobile en fonction de l'emplacement de AB et le transport des informations de la station mobile. Le système comprend l'unité de traitement d'affectation et de division du canal, situant l'unité de signalisation des informations et l'unité de localisation. Avec l'invention, le côté réseau pourra situer la station mobile dans un groupe de multidiffusion/d'appel de groupe à tout moment lors de la multidiffusion/d'appel de groupe du système de communication de mise en commun en fonction du réseau public. Il convient donc pour contrôler et programmer le système de communication de mise en commun.
PCT/CN2006/000995 2005-06-10 2006-05-16 Procédé et système pour localisation en temps réel de la station mobile de multidiffusion/d'appel de groupe WO2006131047A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510075344.X 2005-06-10
CNB200510075344XA CN100459794C (zh) 2005-06-10 2005-06-10 一种对组呼/组播移动台进行实时定位的方法

Publications (1)

Publication Number Publication Date
WO2006131047A1 true WO2006131047A1 (fr) 2006-12-14

Family

ID=37498115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/000995 WO2006131047A1 (fr) 2005-06-10 2006-05-16 Procédé et système pour localisation en temps réel de la station mobile de multidiffusion/d'appel de groupe

Country Status (2)

Country Link
CN (1) CN100459794C (fr)
WO (1) WO2006131047A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101980566B (zh) * 2010-10-26 2015-06-10 中兴通讯股份有限公司 一种独立专用控制信道上实现切换的方法和系统
US9294886B2 (en) * 2012-08-31 2016-03-22 Qualcomm Incorporated Evolved multimedia broadcast/multicast services (eMBMS) geo-location based group call
CN103024668B (zh) * 2012-11-28 2015-09-23 海能达通信股份有限公司 集群模式下定位数据传输的方法、系统及相关设备
WO2014082217A1 (fr) * 2012-11-28 2014-06-05 海能达通信股份有限公司 Procédé, système, et dispositif correspondant, pour la transmission de données de position en mode grappe
CN103079267B (zh) * 2012-12-28 2016-07-06 东方通信股份有限公司 一种在数字集群通信系统中快速上报终端位置信息的实现方法
CN111601261B (zh) * 2020-01-16 2022-04-19 哈尔滨海能达科技有限公司 控制信道的负载均衡方法、组呼业务处理方法及相关设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198936B1 (en) * 1997-10-13 2001-03-06 Electronics And Telecommunications Research Institute Method for transmitting and receiving control plane information using medium access control frame structure for transmitting user information through an associated control channel
US6442392B2 (en) * 1997-11-06 2002-08-27 Nokia Mobile Phones Method and arrangement for locating a mobile station
DE10215725A1 (de) * 2002-04-10 2003-11-13 Koepenick Funkwerk Gmbh Funk-Ortungssystem in digitalen Bündelfunknetzen
US6684081B2 (en) * 2002-05-10 2004-01-27 Nokia Corporation Method and system for separating control information and user data from multicast and broadcast services
CN1780418A (zh) * 2004-11-18 2006-05-31 中兴通讯股份有限公司 一种实现定位的集群系统和方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6564049B1 (en) * 1999-05-10 2003-05-13 Ericsson Inc. Methods and systems for providing group calls with reduced setup times
CN1331369C (zh) * 2003-09-17 2007-08-08 华为技术有限公司 集群无线通信系统中调度台获取用户进入位置区的方法
CN100334898C (zh) * 2003-09-19 2007-08-29 华为技术有限公司 一种集群无线通信系统对用户的监控方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198936B1 (en) * 1997-10-13 2001-03-06 Electronics And Telecommunications Research Institute Method for transmitting and receiving control plane information using medium access control frame structure for transmitting user information through an associated control channel
US6442392B2 (en) * 1997-11-06 2002-08-27 Nokia Mobile Phones Method and arrangement for locating a mobile station
DE10215725A1 (de) * 2002-04-10 2003-11-13 Koepenick Funkwerk Gmbh Funk-Ortungssystem in digitalen Bündelfunknetzen
US6684081B2 (en) * 2002-05-10 2004-01-27 Nokia Corporation Method and system for separating control information and user data from multicast and broadcast services
CN1780418A (zh) * 2004-11-18 2006-05-31 中兴通讯股份有限公司 一种实现定位的集群系统和方法

Also Published As

Publication number Publication date
CN1882161A (zh) 2006-12-20
CN100459794C (zh) 2009-02-04

Similar Documents

Publication Publication Date Title
CN104813691B (zh) 基于lte增强型多媒体广播多播业务的群组通信的无线资源高效传输的方法及用户设备
CN103581918B (zh) 分量载波配置方法、基站和用户设备
CN105052096B (zh) 广播控制带宽分配和数据收发方法及装置
TW200917725A (en) Method for communicating
CN108370557B (zh) 在无线通信系统中操作资源的方法和设备
WO2011018037A1 (fr) Procede, appareil et systeme de configuration d'informations de commande de service de diffusion/multidiffusion multimedia (mbms)
CN101616364A (zh) 一种组呼业务实现方法
EP2914024B1 (fr) Procédé de mise en oeuvre de service à ressources partagées basé sur l'évolution à long terme et terminal utilisateur à ressources partagées
CN1567793A (zh) 一种在码分多址系统中实现集群业务的方法
WO2006131047A1 (fr) Procédé et système pour localisation en temps réel de la station mobile de multidiffusion/d'appel de groupe
US8254968B2 (en) System and method for low overhead paging in a wireless communications system
CN101909250A (zh) 资源分配方法、接入网网络设备节点和集群通信系统
WO2013120390A1 (fr) Procédé et dispositif de transmission d'informations d'indication de priorité de transmission
WO2009127105A1 (fr) Procédé d'établissement de rapports et procédé de configuration de mécanisme d'établissement de rapports pour le pilote dans un appel de groupe traditionnel
WO2014094504A1 (fr) Procédé et système pour le traitement de données de configuration
JP4651463B2 (ja) 基地局及び基地局で使用される方法
CN104754754A (zh) 半静态调度下的迟后接入方法
CN104519466A (zh) 点对多点集群业务的半静态调度方法
CN103024683A (zh) 一种集群通信中听话方状态上报的方法
CN102625249B (zh) 一种组呼会话信息的传输方法和设备
WO2006045244A1 (fr) Procede et dispositif de mise en place d'un service d'appel secret
WO2015042834A1 (fr) Procédé, dispositif et système pour l'allocation de ressources
CN111447565B (zh) Mbms专用sib的发送方法、装置、系统及存储介质
WO2008095419A1 (fr) Procédé d'attribution d'un canal réservé et dispositif de station de base associé
CA2576532A1 (fr) Methode indiquant un canal pour envoyer une demande d'acces a une liaison montante, et systeme a commutation automatique de canaux

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06741883

Country of ref document: EP

Kind code of ref document: A1