WO2015032362A1 - Procédé, dispositif et appareil d'établissement d'une porteuse de session de groupe - Google Patents

Procédé, dispositif et appareil d'établissement d'une porteuse de session de groupe Download PDF

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Publication number
WO2015032362A1
WO2015032362A1 PCT/CN2014/086154 CN2014086154W WO2015032362A1 WO 2015032362 A1 WO2015032362 A1 WO 2015032362A1 CN 2014086154 W CN2014086154 W CN 2014086154W WO 2015032362 A1 WO2015032362 A1 WO 2015032362A1
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cluster
terminal
bearer
session
established
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PCT/CN2014/086154
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English (en)
Chinese (zh)
Inventor
谢宝国
李志军
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, and a device for establishing a cluster session bearer.
  • the trunking communication system is a mobile communication system used for group dispatching command communication, which is widely used in public security and public security, fire protection and other public security fields.
  • the biggest feature of trunking communication is that voice communication is connected by Push To Talk (PTT).
  • PTT Push To Talk
  • the called party can answer the call without going off-hook, and the connection speed is fast, and can support group call and other functions.
  • Its operation mode is mainly simplex and half-duplex, mainly adopting channel dynamic allocation mode, and users have different priority levels and special functions. When communicating, they can respond to one-stop applications, mainly in the field of professional mobile communication.
  • the cluster system transmits data through the shared channel to save resources and improve efficiency.
  • LTE Long Term Evolution
  • 3GPP Third Generation Partnership Project
  • FIG. 1 is a schematic structural diagram of a cluster communication under an LTE network according to the related art. As shown in FIG. 1 , the functions of each part of the network element are as follows:
  • a user equipment is also called a user equipment.
  • the user equipment accesses the base station through a wireless air interface and accesses the core network. Before the terminal accesses the core network, it needs to be authenticated by the core network. After the core network is registered, the terminal can have two states: idle state and connected state. In the idle state, the terminal and the base station are not connected. In the connected state, the terminal is connected to the base station and can send and receive data.
  • An evolved NodeB (Evolved NodeB, referred to as eNodeB) is a base station system in an LTE network, and provides radio resources for terminal access, and the control plane and the mobile management unit communicate with each other through the S1-AP interface, and the user plane and the service gateway pass.
  • the S1-U interfaces are interconnected.
  • the eNodeB informs the terminal of the current cell information by broadcasting.
  • the Mobility Management Element is a control plane entity in the LTE network and is responsible for user access authentication, mobility management, bearer management, etc., and temporarily stores the context in which the terminal is attached to the network.
  • the serving gateway (Serving Gateway, SGW for short) provides the anchor of the terminal in 2G ⁇ 3G and LTE mobility, and the SGW can also page the terminal through the MME if the terminal is in the idle state.
  • a PDN gateway (PDW Gateway, PGW for short), the terminal accesses the service network through the PGW.
  • the PGW allocates an IP address to the terminal and manages the QoS of the bearer.
  • the Group Communication Application Server (GCAS) is used to manage cluster services, including cluster service group management, call setup, release, and management.
  • the UE and the GCAS are connected through a Gc1 interface.
  • the main function of the interface is that the UE registers with the GCAS and initiates a group call.
  • a logical network element of a Multipoint Service Entity is added.
  • the main function is to provide a group call service for GCAS.
  • the MuSE receives the group call related information from the GCAS through the GC2 interface, connects to the MME through the GC4 interface, establishes a group call path, and sends the received media to the base station through the GC3 interface, and the base station sends all the terminals in the group through the shared channel.
  • GCAS sends downlink data in two ways, unicast and multicast.
  • the unicast that is, GCAS, sends the downlink data to the terminal in a point-to-point manner, and the data is sent to the terminal through the EPC bearer.
  • Multicast ie, GCAS, sends downlink data to MuSe, which sends the data to the base station, and then the base station transmits the downlink data to multiple terminals through broadcast.
  • cluster services are not necessarily supported in the entire network.
  • Operators and service providers usually specify a range of physical areas, and only support cluster services in the physical area.
  • GCAS may terminate the cluster service for the terminal. According to this requirement, GCAS needs to know whether the location area where the terminal is currently located exceeds the specified physical area.
  • the application layer server GCAS performs the right control according to the call right request of the cluster terminal, and the current sending terminal terminates the cluster session to allocate the right to the receiving terminal that requests the right. And establish a cluster session to achieve the process of preemption of the right.
  • FIG. 2 is a flowchart of implementing a right preemption by a cluster terminal according to the related art. As shown in FIG. 2, the method includes the following steps:
  • step S201 the GCAS cluster server establishes a cluster session for a cluster group, and the voice (or data, video, etc.) of the transmitting terminal UE1 authorized by the voice right is carried by the downlink multicast bearer established by the MuSe or the downlink unicast bearer established by the EPS. Send to other receiving terminals of the cluster group.
  • a cluster group performs a session, only one terminal can send data as a sending terminal, and the terminal has a right of call at this time;
  • Step S202 the UE2 as the receiving terminal wants to initiate a session, and the UE2 initiates a call right request to the GCAS;
  • Step S203 After receiving the call request of the UE2, the GCAS performs the right control according to the local policy, and then reassigns the call right after the current session ends;
  • Step S204 The current sending terminal initiates a session end request to the GCAS, and the GCAS releases the cluster session and the uplink bearer of the sending terminal, and simultaneously changes the terminal into a receiving terminal;
  • Step S205 the GCAS initiates an uplink bearer setup request to the UE2 that applies for the call according to the result of the voice right control, and the request is sent to the PDN GW;
  • Step S206 The EPS network element establishes an uplink cluster bearer request for the UE2 according to the GCAS, and establishes a wireless uplink cluster bearer and a core network row cluster bearer for the
  • the PGN GW notifies the GCAS that the uplink cluster bearer has been established, and the GCAS authorizes the UE2 to be the transmitting terminal and allocates the right to call.
  • Step S207 the UE2 initiates a session to the cluster group, and sends downlink data.
  • Step S208 The GCAS broadcasts the information of the right-to-right UE to the other terminals of the cluster group, and if other terminals initiate the uplink session, the GCAS needs to apply for the right to the GCAS;
  • the GCAS when the terminal initiates the call request, the GCAS performs the suspension process, and only when the current sending terminal in the same cluster group releases the session, the GCAS will process the next session establishment request, and allocate the message to the terminal that requests the right to speak. Right, and request the bearer resources from the EPS network.
  • the end-to-end session establishment time In the current carrier's requirement, when a specific cluster terminal initiates a session request, the end-to-end session establishment time must be less than 300 ms, and the specific cluster terminal may be all cluster terminals, or may be a terminal that subscribes to the parameter. Therefore, if the bearer establishment process of the second session is established after the current session is released, the end-to-end session establishment time cannot meet the requirement.
  • the embodiment of the invention provides a method, a device and a device for establishing a cluster session bearer, so as to at least solve the problem that the end-to-end session establishment time cannot be satisfied when the bearer establishment process of the second session is established after the current session is released in the cluster communication. Delay the request.
  • a method for establishing a cluster session bearer including: in a cluster session, when the first cluster terminal that does not have the right to initiate a call request, the first cluster terminal is Pre-establish cluster uplink bearers.
  • Pre-establishing a cluster uplink bearer for the first cluster terminal includes: sorting a plurality of the first cluster terminals according to a preset policy; pre-establishing a cluster uplink bearer for the first cluster terminal ranked in the foregoing in the sorting .
  • Pre-establishing the cluster uplink bearer for the first cluster terminal that is in the top of the sorting includes: establishing uplink cluster radio to the first cluster terminal that is in front when the sorting time period of the same cluster group expires
  • the media plane bears and bears the core network media plane.
  • the preset policy includes at least one of the following: a time sequence of requesting rights, a cluster group priority, and a cluster terminal priority.
  • Sorting the plurality of the first cluster terminals according to the preset policy includes: sorting, according to the cluster group priority, the first cluster terminals in different cluster groups; The first cluster terminal having the same priority as the cluster terminal is sorted according to the chronological order of the requested call rights; and the first cluster terminal having different priorities of the cluster terminals in the same cluster group is as described above. Cluster terminal prioritization.
  • the method further includes: performing a right rejection on the first cluster terminal that is listed in the sorting.
  • the method further includes: in the cluster session, if the first cluster terminal that performs the right rejection rejects the call right request, directly rejects the right to the first cluster terminal that initiates the call request again.
  • the method further includes: comparing the cluster terminal priority of the first cluster terminal in the same cluster group and the first cluster terminal in the pre-established cluster uplink bearer Updating the cluster group pre-preview if the cluster terminal priority of the first cluster terminal ranked first is higher than the cluster terminal priority of the first cluster terminal of the pre-established cluster uplink bearer Established cluster uplink bearer.
  • the method further includes: if the priority of the cluster terminal of the first cluster terminal that initiates the call request or has pre-established the cluster uplink bearer is higher than the priority of the cluster terminal of the second cluster terminal that currently has the right to call, release the current An uplink cluster session of the cluster session, and an uplink cluster session is established for the first cluster terminal.
  • cluster uplink bearer When a cluster uplink bearer is pre-established for the first cluster terminal, a small amount of network resources are allocated to the cluster uplink bearer; and after the voice right is allocated to the first cluster terminal, the cluster uplink bearer is re-allocated. Internet resources.
  • Re-allocating the required network resources for the cluster uplink bearer includes: after receiving the session notification sent by the first cluster terminal or the GCAS, reallocating the required network resources for the cluster uplink bearer, and pressing the session The QoS parameters in the notification are reconfigured.
  • the method further includes: after the first cluster terminal allocates the right to the session, performing the cluster session by using the pre-established cluster uplink bearer.
  • a device for establishing a cluster session bearer including: an establishing module, configured to be in a cluster session, when a first cluster terminal that does not have a right to initiate a call request, The first cluster terminal pre-establishes a cluster uplink bearer.
  • the establishing module includes: a sorting unit configured to sort a plurality of the first cluster terminals according to a preset policy; and an establishing unit configured to pre-establish a cluster for the first cluster terminal ranked in the ranking Upstream bearer.
  • a network side device including: an establishing module, configured to be in a cluster session, and when the first cluster terminal that does not have the right to speak initiates a call request, A cluster terminal pre-establishes a cluster uplink bearer.
  • the establishing module includes: a sorting unit configured to sort a plurality of the first cluster terminals according to a preset policy; and an establishing unit configured to pre-establish a cluster for the first cluster terminal ranked in the ranking Upstream bearer.
  • the network side device further includes: a communication module, configured to perform a cluster session by using the pre-established cluster uplink bearer after the first cluster terminal allocates the right.
  • the network side device includes: GCAS or MME.
  • the cluster uplink bearer is pre-established for the cluster terminal, so that the cluster terminal can quickly perform the cluster session after obtaining the call right.
  • FIG. 1 is a schematic structural diagram of cluster communication under an LTE network according to the related art
  • FIG. 2 is a flowchart of implementing a right-of-rights preemption by a cluster terminal according to the related art
  • Embodiment 3 is a flow chart of a method for carrying pre-establishment according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of a method for carrying a pre-establishment according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a method for carrying a pre-establishment according to Embodiment 3 of the present invention.
  • FIG. 6 is a flowchart of a method for carrying pre-establishment according to Embodiment 4 of the present invention.
  • FIG. 8 is a block diagram showing the structure of a preferred setup module in accordance with an embodiment of the present invention.
  • the embodiment of the present invention provides a method for establishing a cluster session bearer, which includes pre-establishing a cluster uplink bearer for the cluster terminal when the cluster terminal that does not have the right to call initiates a call right request.
  • the cluster uplink bearer is pre-established for the cluster terminal, so that the cluster terminal can quickly perform the cluster session after obtaining the call right.
  • pre-establishing the cluster uplink bearer for the group terminal that initiates the call request comprises: sorting the plurality of cluster terminals according to the preset policy; pre-establishing the cluster uplink bearer for the cluster terminal ranked in the preceding.
  • the cluster uplink bearer may be pre-established for the cluster terminals that are in the front row, or the cluster uplink bearer may be pre-established only for the cluster terminal that is ranked first.
  • the number of cluster terminals that are pre-established in the uplink of the cluster can be dynamically adjusted according to factors such as the number of cluster terminals that request the right to call, and the present invention does not limit this.
  • the pre-establishing the cluster uplink bearer for the cluster terminal ranked in the top of the sorting comprises: establishing the uplink cluster wireless media plane bearer and the core network media for the top cluster terminal when the sorting time period of the same cluster group expires Carrying.
  • the preset policy of the embodiment of the present invention includes, but is not limited to, at least one of the following: a time sequence of the requesting rights of the cluster terminal, a priority of the cluster group to which the cluster terminal belongs (referred to as a cluster group priority), and a cluster terminal. Priority (referred to as cluster terminal priority).
  • sorting the plurality of cluster terminals according to the preset policy includes: sorting the cluster terminals in different cluster groups according to the cluster group priority; and clustering the cluster terminals with the same priority in the same cluster group The terminal is sorted according to the time sequence of the requested call rights. For the cluster terminals with different cluster terminal priorities in the same cluster group, the cluster terminal priorities are sorted.
  • the method further includes: performing a right rejection of the cluster terminals ranked later in the sorting.
  • the cluster terminal that performs the right rejection request initiates the call right request again, the right of the cluster terminal that initiates the call right request is directly rejected.
  • the method further includes: comparing the priority of the cluster terminal of the cluster terminal in the same cluster group and the cluster terminal of the pre-established cluster uplink bearer; if the cluster terminal is ranked first If the cluster terminal priority is higher than the cluster terminal priority of the cluster terminal that pre-establishes the cluster uplink bearer, the cluster uplink bearer pre-established by the cluster group is updated. Updating the cluster uplink bearer pre-established by the cluster group may pre-establish cluster uplink bearer for the high-priority cluster terminal.
  • the cluster terminal priority of the cluster terminal that initiates the call request or has pre-established the cluster uplink bearer is higher than the cluster terminal priority of the cluster terminal that currently has the right call, the uplink cluster session of the current cluster session is released, and An uplink cluster session is established for the cluster terminal that initiates the call request or has pre-established the cluster uplink bearer.
  • the cluster uplink bearer when the cluster uplink bearer is pre-established for the cluster terminal, a small amount of network resources are allocated for the cluster uplink bearer; after the voice right is allocated to the cluster terminal, the required network resources are reallocated for the cluster uplink bearer.
  • the network resources required for reallocating the uplink bearer of the cluster include: after receiving the session notification sent by the cluster terminal or the cluster application server GCAS, reallocating the required network resources for the cluster uplink bearer, and pressing the service in the session notification
  • the quality QoS parameters are reconfigured.
  • the cluster session may be performed through the pre-established cluster uplink bearer.
  • the LTE cluster system is mainly used to solve the problem that the cluster end-to-end session in the cluster group can be quickly established, and the terminal with high priority can preferentially preempt the network resources to perform the cluster session and satisfy the LTE cluster user. Demand.
  • the LTE cluster system After receiving the call request from the cluster terminal, the LTE cluster system (including the 3GPP network side network element and the GCAS cluster server supporting the LTE cluster function), if the cluster group cluster session of the cluster terminal is in progress, the LTE cluster The system performs the right control of the cluster terminal that applies for the right to call in the cluster group, and performs queuing processing according to the system policy in chronological order and priority order. After the queuing cycle time set by the system overflows, the LTE cluster system pre-establishes the bearer of the same cluster group with the call right queued in the front or the front, and the 3GPP network pre-establishes the uplink cluster radio media plane bearer for the terminal. Hosted with the upstream cluster core network media side. The 3GPP network allocates less network resources to the pre-established bearers, preventing network resources from being heavily occupied.
  • the LTE cluster system allocates the right to the cluster terminal that has pre-established the bearer in the same cluster group, and the pre-established call center cluster terminal or the LTE cluster system performs session notification to the 3GPP network.
  • the session notification includes a QoS parameter, and the 3GPP network reconfigures the network resource according to the QoS parameter for the pre-established bearer.
  • the session is established with the GCAS cluster server, and the media stream data such as voice (or data, video, etc.) is sent to other cluster terminals of the cluster group.
  • the media stream data such as voice (or data, video, etc.) is sent to other cluster terminals of the cluster group.
  • the LTE cluster system can reject the call right of the cluster terminal behind the queue. After receiving the call rejection notification, the cluster terminal cannot initiate the call request before the current sending terminal does not end the cluster session. If the cluster terminal initiates a call request, the LTE cluster system can also directly reject the call.
  • the LTE cluster system Before the LTE cluster system pre-establishes bearers for terminals of different cluster groups, the LTE cluster system needs to check the network resources. When the network resources are insufficient, the LTE cluster system preferentially pre-establishes bearers for the cluster terminals in the high-priority cluster group. . If the cluster terminal of the low-priority cluster group has pre-established bearer, and the terminal of the high-priority cluster group does not have network resources for pre-establishment, the LTE cluster system releases the pre-established bearer resources of the low-priority cluster group. Ensure that the bearer pre-establishment of the high-priority cluster group.
  • FIG. 3 is a flowchart of a method for pre-establishing a bearer according to Embodiment 1 of the present invention. As shown in FIG. 3, a schematic diagram of a process for pre-establishing a bearer of a cluster terminal that applies for a call right by a 3GPP network side network element is described.
  • the technology of the present invention is mainly that after the 3GPP network side network element MME receives the call right request of the receiving type cluster terminal, according to the system policy, the right to control the terminal according to the system policy, and the same cluster is used.
  • the terminal that requests the right to call in the group is queued.
  • the uplink cluster radio data bearer and the core network media bearer are pre-established to the top cluster terminal in the same cluster group, and notified to the GCAS cluster server.
  • GCAS is pre-established in the cluster group.
  • the bearer of the bearer allocates the right to call, and the terminal can directly send the voice or data packet to the cluster group by using the pre-established bearer to perform the cluster session process.
  • Embodiment 1 includes the following steps:
  • step S301 the GCAS cluster server establishes a cluster session for a cluster group, and the voice (or data, video, etc.) of the sending terminal authorized by the voice right is passed through the downlink multicast bearer established by the MuSe or the downlink unicast bearer established by the EPS. Send to other receiving terminals of the cluster group.
  • a cluster group performs a session, only one terminal can send data as a sending terminal, and the terminal has a right of call at this time;
  • step S302 the receiving terminal of the UE2 to the UEn initiates a call request to the 3GPP network side network element (such as the MME network element) in the call right queuing cycle, and the call request includes the ID of the terminal, the ID of the cluster group, and Information such as bearer type.
  • the 3GPP network side network element such as the MME network element
  • Step S303 the network element of the 3GPP network side obtains the subscription data related to the terminal cluster in the cluster group from the HSS, and performs a subscription check on the terminal, if the cluster terminal has the sending permission, whether to sign the session for 300 ms, and establish the session feature. The level of priority, etc. For a call request that does not have a send permission, or is not a cluster terminal, the request is rejected directly.
  • Step S304 The network element of the 3GPP network side performs the right control of the terminal according to the system policy according to the system policy, and performs the right queuing of the terminal that requests the right to call in the same cluster group;
  • the system policy of the same cluster group can include one of the following ways:
  • the first type the terminal with the same priority is based on the application time, and the terminal that is applied first is ranked first;
  • cluster terminals with different priorities are queued by priority, and terminals with higher priority are ranked first;
  • the system specifies the top terminal
  • Step S305 In the call queuing process, the 3GPP network side network element may perform the right rejection of the terminals in the same cluster group according to the system policy. A terminal rejected by the right to call cannot initiate a call right application again until the current call right has been changed. A terminal rejected by the right to call can enter the idle state to save network resources.
  • Step S306 after the end of the call queue period, the 3GPP network side network element MME pre-establishes the bearer of the top terminal UE2 or the first few terminals, and establishes an uplink cluster wireless media plane bearer and cluster for the terminal.
  • the core network media plane carries.
  • the media plane bearer may be voice, IP data stream, video, etc., and is determined according to the bearer type in the voice request;
  • the call queue period can be locally configured on the 3GPP network side network element.
  • the network side network element may further determine whether the terminal needs to be pre-established for the terminal that is ranked first or the first in the same cluster group, for example, the system policy specifies that only the terminal that is required to sign the 300ms session establishment is pre-configured; or the system In the policy, the bearer pre-establishment is performed only for the high-priority or the common priority, and the bearer pre-establishment is not performed for the low-priority terminal.
  • Step S307 The 3GPP network side network element requests the eNB to establish an uplink trunked wireless media plane bearer of the terminal UE2, and performs a radio bearer setup process between the eNB radio access network and the UE2, and pre-establishes an uplink wireless media plane bearer.
  • the pre-established bearer can be set to occupy a small amount of network resources when configuring the radio resources.
  • the 3GPP network side network element can simultaneously request the SGW/PGW to carry the uplink cluster core network media bearer on the core network side, and the SGW/PGW pre-establishes the uplink cluster media plane bearer on the core network side of the terminal, and the media plane bearer can be set in the pre-establishment time. It takes up very little network resources.
  • Step S308 after the uplink cluster media plane bearer pre-establishment is completed, the 3GPP network side network element may notify the GCAS of the pre-established bearer information of the terminal.
  • the notification message may include information such as an id of the terminal, an id of the cluster group, and a media type of the pre-established bearer.
  • Step S309 the current terminal UE1 initiates a call release request to the GCAS cluster server when ending the session, or the GCAS ends the session of the current terminal after the session timing ends, releases the call right of the current terminal, and authorizes the terminal as a receiving terminal;
  • step S310 the GCAS cluster server allocates the right to the terminal UE2 that has pre-established the bearer according to the pre-established bearer information in the cluster group, and authorizes the terminal to be the sending terminal.
  • the authorization message contains information such as the IP address of GCAS.
  • the 3GPP network side network element can reconfigure the radio resource and the core network resource for the pre-established bearer according to the session notification and the QoS parameter of the GCAS or the UE.
  • Step S311 the terminal UE2 that allocates the right to establish a cluster session with the GCAS;
  • step S312 the terminal UE2 that allocates the right to send the uplink voice (or data, video) to the GCAS through the established bearer, and the GCAS sends the uplink terminal to the receiving terminal of the cluster group through the downlink cluster bearer.
  • Step S313 the GCAS cluster server notifies the EPS network element to release the network resources occupied by the original terminal, including information such as the original terminal id and group id;
  • Step S314 the EPS network element releases the uplink cluster wireless media plane bearer and the core network media plane bearer occupied by the original terminal.
  • step S315 the GCAS notifies the other receiving terminal of the cluster group of the information of the UE2 occupying the right to speak.
  • FIG. 4 is a flowchart of a method for pre-establishing a bearer according to Embodiment 2 of the present invention. As shown in FIG. 4, a schematic diagram of a process for applying for pre-establishment of a bearer to an EPS network is described.
  • the technology of the present invention mainly focuses on the GCAS cluster server receiving the call right request of the receiving type cluster terminal, performing the right to control the terminal according to the system policy according to the system policy, and requesting the right terminal for the same cluster group.
  • the clustered wireless data bearer and the core network media bearer are pre-established to the EPS network for the cluster terminal in the same cluster group.
  • GCAS allocates the right to the terminal that has been pre-established in the cluster group.
  • the terminal can directly send voice or data packets to the cluster group by using the pre-established bearer. , the cluster session process.
  • Embodiment 2 includes the following steps:
  • step S401 the GCAS cluster server establishes a cluster session for a cluster group, and the voice (or data, video, etc.) of the transmitting terminal authorized by the voice right is carried by the downlink multicast bearer established by the MuSe or the downlink unicast bearer established by the EPS. Send to other receiving terminals of the cluster group.
  • a cluster group performs a session, only one terminal can send data as a sending terminal, and the terminal has a right of call at this time;
  • Step S402 The receiving terminal of the UE2 to the UEn initiates a call request to the GCAS cluster server in the call queue period, and the call request includes the ID of the terminal, the ID of the cluster group, and the media type.
  • the media type indicates at the application level whether it is voice, or media such as video or IP data stream;
  • Step S403 The GCAS cluster server may obtain the cluster subscription data or configuration data related to the terminal from the HSS or the local configuration, and perform a subscription check or configuration check on the terminal, if the cluster terminal has a sending permission, whether Sign up for 300ms to establish session characteristics, the priority of the terminal, and so on. For a call request that does not have a send permission, or is not a cluster terminal, the request is rejected directly.
  • Step S404 the GCAS cluster server performs call right control according to the system policy according to the system group, and performs call right queuing for the terminal that requests the right of the same cluster group;
  • the system policy of the same cluster group can include one of the following ways:
  • the first type the terminal with the same priority is based on the application time, and the terminal that is applied first is ranked first;
  • cluster terminals with different priorities are queued by priority, and terminals with higher priority are ranked first;
  • the system specifies the top terminal
  • Step S405 in the call queuing process, the GCAS may perform the right rejection of the terminal in the same cluster group according to the system policy.
  • a terminal rejected by the right to call cannot initiate a call right application again until the current call right has been changed.
  • a terminal rejected by the right to call can enter the idle state to save network resources.
  • Step S406 after the termination of the call queue period, the GCAS may request the 3GPP network side to perform bearer pre-establishment on the terminal UE2 or the front terminal in the same cluster group, and establish an uplink cluster wireless media plane for the terminal.
  • Bearer and cluster core network media plane bearer The cluster uplink pre-establishment bearer request includes information such as the id of the terminal, the id of the cluster group, and the bearer type.
  • the media plane bearer may be voice, IP data stream, video, etc., and is determined according to the bearer type in the pre-established bearer request;
  • the call queue period can be configured locally on the GCAS cluster server.
  • the GCAS cluster server may further determine whether the terminal needs to be pre-established for the terminal that is ranked first or formerly, for example, the system policy stipulates that only the terminal that subscribes to the 300 ms session establishment requirement is pre-configured; or the system policy specifies that the terminal is only high.
  • the bearer pre-establishment is performed on the priority or the common priority, and the bearer pre-establishment is not performed on the low-priority terminal.
  • the network element of the 3GPP network side After receiving the request for pre-established uplink cluster bearer from the GCAS, the network element of the 3GPP network side requests the eNB to establish an uplink cluster radio media plane bearer of the terminal, and establish a radio bearer setup process between the eNB radio access network and the UE.
  • the upstream wireless media plane bearer is pre-established.
  • the pre-established bearer can be set to occupy a small amount of network resources when configuring the radio resources.
  • the 3GPP network side network element can simultaneously request the SGW/PGW to carry the uplink cluster core network media bearer on the core network side, and the SGW/PGW pre-establishes the uplink cluster media plane bearer on the core network side of the terminal, and the media plane bearer can be set in the pre-establishment time. It takes up very little network resources.
  • Step S408 after the uplink cluster media plane bearer pre-establishment is completed, the 3GPP network side network element returns the terminal uplink cluster bearer pre-establishment success response to the GCAS server;
  • Step S409 the UE2 has pre-established a bearer to the GCAS cluster server, and may initiate an uplink cluster session to the GCAS through the bearer.
  • step S410 the current terminal UE1 initiates a call release request to the GCAS cluster server when the session ends, or the GCAS ends the session of the current terminal after the session timing ends, releases the call right of the current terminal, and authorizes the terminal as a receiving terminal;
  • step S411 the GCAS cluster server allocates the right to the terminal UE2 that has pre-established the bearer according to the pre-established bearer information in the cluster group, and authorizes the terminal to be the sending terminal.
  • the authorization message contains information such as the IP address of GCAS.
  • the 3GPP network side network element can reconfigure the radio resource and the core network resource for the pre-established bearer according to the session notification and the QoS parameter of the GCAS or the UE.
  • Step S412 the terminal UE2 that allocates the right to establish a cluster session with the GCAS, and sends the uplink voice (or data, video) to the GCAS through the established bearer, and the GCAS sends the received terminal to the cluster group through the downlink cluster bearer.
  • Step S413 the GCAS cluster server notifies the EPS network element to release the network resources occupied by the original terminal, including information such as the original terminal id and group id;
  • Step S414 The EPS network element releases the uplink cluster wireless media plane bearer and the core network media plane bearer occupied by the original terminal.
  • step S415 the GCAS notifies the other receiving terminals of the cluster group of the information of the UE2 occupying the right to speak.
  • FIG. 5 is a flowchart of a method for pre-establishing a bearer according to Embodiment 3 of the present invention. As shown in FIG. 5, a flow chart of performing pre-established update of a bearer in a voice rights control process by a 3GPP network side network element is described.
  • the 3GPP network side network element MME continues to receive the receiving type cluster terminal.
  • the network element of the 3GPP network side compares the priority of the pre-established bearer in the same cluster group and the priority of the cluster terminal in the same cluster group according to the system policy. If the priority of the current call queue in the current queue is higher than that of the pre-established bearer The priority of the terminal, the network side network element initiates a pre-established bearer update process.
  • the pre-established bearer that is established by the same cluster group is first released, and then the pre-established bearer is re-established for the terminal with high priority, and the uplink cluster radio data bearer is re-established.
  • the core network media is hosted and notified to the GCAS cluster server that the current pre-established bearer has been updated.
  • GCAS allocates the right to the terminal of the updated pre-established bearer.
  • the terminal can directly send the voice or data packet to the cluster group by using the pre-established bearer to perform the cluster session process.
  • Embodiment 3 includes the following steps:
  • step S501 the GCAS cluster server establishes a cluster session for a cluster group, and the voice (or data, video, etc.) of the sending terminal authorized by the voice right is carried by the downlink multicast bearer established by the MuSe or the downlink unicast bearer established by the EPS. Send to other receiving terminals of the cluster group.
  • a cluster group performs a session, only one terminal can send data as a sending terminal, and the terminal has a right of call at this time;
  • Step S502 The 3GPP network side network element establishes a pre-established bearer for the top-ranked terminal UE2 according to the right-of-line queuing control process, including the uplink clustered wireless media plane bearer and the core network media plane bearer.
  • step S503 the cluster session of the current cluster group is in progress, and the receiving terminal of the UE3 to UEn that has not initiated the call right request initiates a call request to the 3GPP network side network element (such as the MME network element) in the call queueing period.
  • the call request includes information such as the ID of the terminal, the ID of the cluster group, and the type of the bearer.
  • Step S504 The network element of the 3GPP network side acquires the subscription data related to the terminal cluster for applying the right to the contract from the HSS, and performs a contract check on the terminal, such as whether it is a cluster terminal, whether it has the transmission authority, whether to sign the session for 300 ms, and establish the session feature. The level of priority, etc. For a call request that does not have a send permission, or is not a cluster terminal, the request is rejected directly.
  • the 3GPP network side network element performs call right queuing for the terminal that requests the right to call in the same cluster group according to the system policy. After the queuing period expires, the system compares the priority between the top-ranked terminal and the pre-established bearer terminal. Determine if the bearer needs to be updated;
  • Terminals of different priorities in the same cluster group are queued by priority, and terminals with higher priority are ranked first.
  • step S505 after the end of the call queue period, the network element MME of the 3GPP network side finds that the priority of the call center UE3 in the same cluster group is higher than that of the pre-established bearer UE2, and the network side network element Update the pre-established bearer of the cluster group.
  • the 3GPP network side network element requests the original UE2 that releases the cluster group from the radio access network eNB to pre-establish the cluster radio bearer resource, and the radio access network eNB notifies the terminal of the pre-established bearer resource release.
  • the 3GPP network side network element requests the SGW/PGW to release the previously pre-established cluster core network resources, and the SGW/PGW releases the established core network bearer resources of the terminal.
  • Step S506 After the pre-established bearer resource of the cluster group is released, the network element of the 3GPP network side re-requests the pre-establishment of the uplink cluster bearer for the UE1 that queues the first terminal in the cluster group. After receiving the pre-established bearer request, the radio access network eNB and the SGW/PGW pre-establish the uplink cluster radio media plane resource and the cluster core network media plane resource respectively for the queued terminal, and the network can allocate the pre-established cluster bearer. Less network resources.
  • the media plane bearer may be voice, IP data stream, video, etc., and is determined according to the bearer type in the voice request;
  • the call queue period can be locally configured on the 3GPP network side network element.
  • the network side network element may further determine whether the bearer pre-establishment needs to be performed on the top-ranked terminal, for example, the system policy specifies that only the terminal that is required to subscribe to the 300-ms session is pre-configured; or the system policy stipulates that only the high-priority is specified.
  • the bearer pre-establishment is performed on the normal priority, and the bearer pre-establishment is not performed on the low-priority terminal.
  • step S507 the 3GPP network side updates the uplink cluster pre-established bearer for the terminal UE3 with the highest priority of the same cluster group, and the UE3 and the 3GPP network complete the bearer pre-establishment process.
  • Step S508 After the uplink cluster media plane pre-establishment bearer update is completed, the 3GPP network side network element may notify the GCAS of the information about updating the uplink cluster pre-establishment bearer of the cluster group.
  • the notification message may include information such as the id of the terminal UE3, the id of the cluster group, and the media type of the pre-established bearer.
  • GCAS updates the uplink pre-established bearer information of the cluster group.
  • step S509 the current terminal UE1 initiates a call release request to the GCAS cluster server when the session ends, or the GCAS ends the session of the current terminal after the session timing ends, releases the call right of the current terminal, and authorizes the terminal as a receiving terminal;
  • step S510 the GCAS cluster server allocates the right to the terminal UE3 that has pre-established the bearer according to the information of the pre-established bearer updated in the cluster group, and authorizes the terminal to be the sending terminal.
  • the authorization message contains information such as the IP address of GCAS.
  • the 3GPP network side network element can reconfigure the radio resource and the core network resource for the pre-established bearer according to the session notification and the QoS parameter of the GCAS or the UE.
  • Step S511 the terminal UE3 that allocates the right to establish a cluster session with the GCAS;
  • step S512 the terminal UE3 that allocates the right to send the uplink voice (or data, video) to the GCAS, and the GCAS sends the uplink voice to the receiving terminal of the cluster group.
  • Step S513 the GCAS cluster server notifies the EPS network element to release the network resources occupied by the original terminal, including the original terminal id, group id, and the like;
  • Step S514 the EPS network element releases the uplink cluster wireless media plane bearer and the core network media plane bearer occupied by the original terminal.
  • step S515 the GCAS notifies the other receiving terminal of the cluster group of the information of the UE3 occupying the right to speak.
  • FIG. 6 is a flowchart of a method for pre-establishing a bearer according to Embodiment 4 of the present invention.
  • the GCAS cluster server requests the 3GPP network side network element to update the uplink of a specific cluster group in the call right control process.
  • the GCAS cluster server when an uplink cluster pre-established bearer is established in the same LTE cluster group, the GCAS cluster server continues to receive the call request of the receiving type cluster terminal because the current LTE cluster session is in progress. .
  • the GCAS cluster server compares the priority of the pre-established bearer with the top-ranked cluster terminal according to the system policy. If the current priority of the call queue in the call queue is higher than the priority of the pre-established bearer, the GCAS cluster The server initiates a pre-established bearer update procedure to the 3GPP network side network element.
  • the established pre-established bearer is first released, and then the pre-established bearer is re-established for the terminal with high priority, and the uplink clustered wireless data bearer and the core network media bearer are re-established. And notify the GCAS cluster server that the current pre-established bearer has been updated. After the current sending cluster terminal session ends, GCAS allocates the right to the terminal of the updated pre-established bearer. The terminal can directly send the voice or data packet to the cluster group by using the pre-established bearer to perform the cluster session process.
  • Embodiment 4 includes the following steps:
  • step S601 the GCAS cluster server establishes a cluster session for a cluster group, and the voice (or data, video, etc.) of the sending terminal authorized by the voice right is carried by the downlink multicast bearer established by the MuSe, or the downlink unicast bearer established by the EPS. Send to other receiving terminals of the cluster group.
  • a cluster group performs a session, only one terminal can send data as a sending terminal, and the terminal has a right of call at this time;
  • step S602 the GCAS cluster server requests the 3GPP network side network element to establish an uplink cluster pre-established bearer of the cluster group according to the right queue control flow, including the uplink cluster wireless media plane bearer and the core network.
  • the media side carries.
  • Step S603 the cluster session of the current cluster group is in progress, and the receiving terminal of the UE3 to UEn that has not initiated the call right request initiates a call right request to the GCAS cluster server in the call right queuing cycle, and the call request includes the terminal.
  • ID, ID of the cluster group, and media type indicates at the application level whether it is voice, or media such as video or IP data stream;
  • the GCAS cluster server may obtain the subscription data or configuration data related to the terminal cluster from the HSS or the local configuration, and perform a subscription check or configuration check on the terminal, such as whether it is a cluster terminal. Whether it has the sending permission, whether to sign the session for 300ms, the priority of the terminal, and so on. For a call request that does not have a send permission, or is not a cluster terminal, the request is rejected directly.
  • the GCAS cluster server performs the right queuing of the terminal that requests the right to call according to the system policy.
  • the system compares the priority of the pre-established terminal with the pre-established bearer to determine whether the bearer needs to be updated.
  • Terminals of different priorities in the same cluster group are queued by priority, and terminals with higher priority are ranked first.
  • Step S605 after the end of the call queue period, the GCAS cluster server finds that the priority of the call center of the same cluster group is higher than that of the pre-established bearer, and the GCAS cluster server requests the 3GPP network side network element to update the Pre-established bearer of the cluster group. Update information such as the id of the terminal, the id of the cluster group, and the bearer type in the pre-established bearer request of the cluster;
  • the call queue period can be configured locally on the GCAS cluster server.
  • the GCAS cluster server may further determine whether the pre-establishment of the pre-established terminal is required, for example, the system policy specifies that only the terminal that subscribes to the 300 ms session establishment requirement is pre-configured; or the system policy stipulates that only the high priority or The bearer pre-establishment is performed on the common priority, and the bearer pre-establishment is not performed on the low-priority terminal.
  • Step S606 after receiving the cluster pre-establishment bearer update request, the network element of the 3GPP network side requests the radio access network eNB to release the pre-established cluster radio bearer resource of the cluster group, and the radio access network eNB notifies the terminal of the cluster. Pre-established bearer resource release.
  • the 3GPP network side network element requests the SGW/PGW to release the previously pre-established cluster core network resources, and the SGW/PGW releases the established core network bearer resources of the terminal.
  • Step S607 After the pre-established bearer resource of the cluster group is released, the network element of the 3GPP network side re-requests the pre-establishment of the uplink cluster bearer for the terminal UE3 that is queued first in the cluster group. After receiving the pre-established bearer request, the radio access network eNB and the SGW/PGW pre-establish the uplink cluster radio media plane resource and the cluster core network media plane resource respectively for the queued terminal UE3, and the network may allocate the pre-established cluster bearer. Less network resources.
  • the media plane bearer may be voice, IP data stream, video, etc., and is determined according to the bearer type in the voice request;
  • Step S608 After the uplink cluster media plane pre-establishment bearer update is completed, the 3GPP network side network element returns information for updating the uplink cluster pre-establishment bearer of the cluster group to the GCAS.
  • the notification message may include the terminal Id, id of the cluster group, media type of the pre-established bearer, and so on.
  • GCAS updates the uplink pre-established bearer information of the cluster group.
  • step S609 the bearer update process is performed in the uplink cluster, and the UE3 in the cluster group has successfully pre-established the bearer to the GCAS cluster server, and the uplink cluster session can be initiated to the GCAS through the bearer.
  • step S610 the current terminal UE1 initiates a call release request to the GCAS cluster server when the session ends, or the GCAS ends the session of the current terminal UE1 after the session timing ends, releases the call right of the current terminal, and authorizes the terminal as a receiving terminal;
  • step S611 the GCAS cluster server allocates the right to the terminal UE3 that has pre-established the bearer according to the updated information of the pre-established bearer in the cluster group, and authorizes the terminal to be the sending terminal.
  • the authorization message contains information such as the IP address of GCAS.
  • the 3GPP network side network element can reconfigure the radio resource and the core network resource for the pre-established bearer according to the session notification and the QoS parameter of the GCAS or the UE3.
  • Step S612 after the terminal UE3 that allocates the right to establish a cluster session with the GCAS, the uplink voice (or data, video) is sent to the GCAS through the established bearer, and the GCAS sends the received class to the cluster group through the downlink cluster bearer. terminal.
  • Step S613 the GCAS cluster server notifies the EPS network element to release the network resources occupied by the original terminal, including information such as the original terminal id and group id;
  • Step S614 the EPS network element releases the uplink cluster wireless media plane bearer and the core network media plane bearer occupied by the original terminal.
  • Step S615 the GCAS notifies the other receiving terminal of the cluster group of the information of the UE3 occupying the right to speak.
  • FIG. 7 is a flowchart of a method for carrying pre-establishment according to Embodiment 5 of the present invention.
  • an LTE cluster system (a 3GPP network side network element supporting a LTE cluster function or a GCAS cluster server) is described in a cluster terminal. Schematic diagram of the process of assigning network resources to priorities of cluster terminals according to their priorities during bearer pre-establishment.
  • the technology of the present invention mainly lies in that the LTE cluster system queues the terminals of different cluster groups for which the call right is applied according to the cluster group priority, and the network element of the 3GPP network side is a cluster of multiple different cluster groups.
  • the network element of the 3GPP network side pre-establishes the uplink cluster bearer for the terminal in the cluster group with the higher priority according to the network resource condition.
  • the network resources are insufficient, the network element on the 3GPP network side is rejected as the cluster group with low priority.
  • the terminal pre-establishes the cluster bearer.
  • the 3GPP network side network element should release the pre-established bearer of the intra-group terminal of the low-priority cluster group, release the network resources, and ensure that the intra-group terminals of the high-priority cluster group are pre-established first. Hosted. After the pre-established bearer of the cluster terminal is completed, the network element of the 3GPP network side notifies the GCAS cluster server of the pre-establishment of the bearer of the cluster group. After the end of the sending cluster terminal session in the current cluster group, GCAS allocates the right to the terminal that has pre-established the bearer in the cluster group and establishes a session. If the terminal in the cluster group is not assigned a pre-established bearer, the LTE cluster system may reject the call right. After the session of the current cluster group ends, the terminal rejected by the call right may initiate the call right request again.
  • Embodiment 5 includes the following steps:
  • step S701 the GCAS cluster server establishes a cluster session for each cluster group, and the voice (or data, video, etc.) of the sending terminal authorized by the voice right through the downlink multicast bearer established by the MuSe, or the downlink unicast bearer established by the EPS. , sent to other receiving terminals of the cluster group.
  • the voice or data, video, etc.
  • the GCAS cluster server establishes a cluster session for each cluster group, and the voice (or data, video, etc.) of the sending terminal authorized by the voice right through the downlink multicast bearer established by the MuSe, or the downlink unicast bearer established by the EPS. , sent to other receiving terminals of the cluster group.
  • the terminal has a right of call at this time;
  • Step S702 The receiving terminal of the UE2 to the UEn initiates a call request to the LTE cluster system in the call queue period, and the call request includes the ID of the terminal, the ID of the cluster group, and the bearer type.
  • UE2 to UEn in multiple cluster groups can initiate a call request to the LTE cluster system when the current group performs a session.
  • Step S703 The LTE cluster system performs the right to control the terminal according to the system policy according to the cluster group, and performs the right queuing for the terminal that requests the right to call in the same cluster group, and performs the priority according to the cluster group of the different cluster groups. Queue of voices;
  • System policies for different cluster groups can include one of the following methods:
  • Cluster groups with different priorities are queued according to the priority of the cluster group.
  • High-priority cluster groups use network resources preferentially.
  • Step S704 after the end of the call queue period, the LTE cluster system performs bearer pre-establishment for the top terminal UE2 or the first few terminals of the different cluster groups, and requests to establish uplink cluster wireless for the terminal.
  • Media plane bearer and cluster core network media plane bearer can be voice, IP data stream, video, etc., and is determined according to the bearer type in the voice request.
  • the request message includes information such as the id of the cluster group and the id of the terminal;
  • the call queue period can be configured locally in the LTE cluster system.
  • the LTE cluster system can further determine whether the bearer pre-establishment needs to be performed on the top or top terminal in the same cluster group, for example, the system policy stipulates that only the terminal that subscribes to the 300 ms session establishment requirement is required. Pre-configuration; or the system policy specifies that bearer pre-establishment is performed only for high-priority or normal-priority, and bearer pre-establishment is not performed for low-priority terminals.
  • step S705 the network element of the 3GPP network side performs the network resource check. According to the current network resource situation, if the network resources are sufficient, all the terminals of the different cluster groups that request the pre-established bearer may be allocated pre-established bearer resources. If the network resources are limited, the network element of the 3GPP network side needs to release the pre-established bearer network resources allocated by the intra-group terminals of the low-priority cluster group, and preferentially ensure the network resource allocation of the high-priority cluster group.
  • Step S706 when the network resource is limited, the LTE cluster system preferentially rejects the terminal bearer pre-establishment request of the low priority cluster group;
  • Step S707 The LTE cluster system returns a right rejection notification to the terminal that is denied the pre-established bearer, and the terminal may initiate the call right application again after the current cluster group session ends.
  • Step S708 The network element of the 3GPP network side releases the pre-allocated network resources of the low-priority cluster group according to the network resource condition, and preferentially allocates network resources to the intra-group terminals of the high-priority cluster group.
  • the 3GPP network side network element requests the eNB and the core network SGW/PGW network element to establish an uplink cluster media plane bearer of the terminal UE2 of the high priority cluster group, and the pre-established bearer can be set to occupy a small amount of network resources.
  • Step S709 After the uplink cluster bearer of the cluster group is successfully established, the network element of the 3GPP network side may notify the GCAS of the pre-established bearer information of the cluster group.
  • the notification message may include information such as an id of the terminal, an id of the cluster group, and a media type of the pre-established bearer.
  • step S710 the UE2 in the high priority cluster group has established a pre-established bearer with the GCAS.
  • step S711 the current terminal UE1 in the cluster group initiates a call release request to the GCAS cluster server when the session ends, or the GCAS ends the session of the current terminal after the session timing ends, releases the current terminal's call right, and authorizes the terminal to receive.
  • Class terminal
  • step S712 the GCAS cluster server allocates the right to the terminal UE2 that has pre-established the bearer according to the pre-established bearer information in the cluster group, and authorizes the terminal to be the sending terminal.
  • the authorization message contains information such as the IP address of GCAS.
  • the 3GPP network side network element can reconfigure the radio resource and the core network resource for the pre-established bearer according to the session notification and the QoS parameter of the GCAS or the UE.
  • Step S713 the terminal UE2 that allocates the right to establish a cluster session with the GCAS, and the terminal UE2 that allocates the right to send the uplink voice (or data, video) to the GCAS through the established bearer, and the GCAS sends the set to the set through the downlink cluster bearer.
  • the receiving terminal of the group The receiving terminal of the group.
  • Step S714 the GCAS cluster server notifies the EPS network element to release the network resources occupied by the original terminal, including information such as the original terminal id and group id;
  • Step S715 The EPS network element releases the uplink cluster wireless media plane bearer and the core network media plane bearer occupied by the original terminal.
  • step S716 the GCAS notifies the other receiving terminal of the cluster group of the information about the UE2 occupying the right to speak.
  • the embodiment of the present invention further provides a device for establishing a cluster session bearer, the device may be configured to implement the foregoing method, and the device may include: an establishing module, configured to be in a cluster session, when the cluster terminal that does not have the right to call initiates When the call is requested, the cluster uplink bearer is pre-established for the cluster terminal.
  • FIG. 8 is a structural block diagram of a preferred setup module according to an embodiment of the present invention.
  • the method includes: a sorting unit 802, configured to sort a plurality of cluster terminals according to a preset policy; and an establishing unit 804, setting To pre-establish cluster uplink bearers for the cluster terminals that are ranked in the top.
  • the embodiment of the present invention further provides a network side device, where the device may be configured to implement the foregoing method, the device includes: an establishing module, configured to be in a cluster session, when a cluster terminal that does not have the right to initiate a right request , pre-establishing a cluster uplink bearer for the cluster terminal.
  • an establishing module configured to be in a cluster session, when a cluster terminal that does not have the right to initiate a right request , pre-establishing a cluster uplink bearer for the cluster terminal.
  • the establishing module comprises: a sorting unit, configured to sort the plurality of cluster terminals according to the preset policy; and the establishing unit is configured to pre-establish the cluster uplink bearers for the cluster terminals ranked in the top in the sorting.
  • the device further includes: a communication module, configured to perform a cluster session by using the pre-established cluster uplink bearer after the cluster terminal allocates the right to call.
  • a communication module configured to perform a cluster session by using the pre-established cluster uplink bearer after the cluster terminal allocates the right to call.
  • the above network side device in the implementation of the present invention may include GCAS or MME.
  • GCAS Global System for Mobile Communications
  • MME Mobility Management Entity
  • the cluster uplink bearer is pre-established for the cluster terminal, so that the cluster terminal obtains the call right. After that, you can quickly perform a cluster session.
  • the cluster terminals can be sorted according to the priority, and the processing of the cluster terminals according to the priority is realized.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage device by a computing device, or they may be fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the embodiment of the present invention provides a method, an apparatus, and a device for establishing a cluster session bearer, which have the following beneficial effects: the cluster terminal can quickly perform a cluster session after obtaining the call right.

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Abstract

L'invention concerne un procédé, un dispositif et un appareil pour établir une porteuse de session de groupe, le dispositif comprenant un module d'établissement configuré pour préétablir une porteuse de liaison montante de groupe pour un terminal de groupe pendant une session de groupe lorsque le terminal de groupe n'ayant aucun privilège de session lance une demande de privilège de session. La présente invention permet à un terminal de groupe de diriger une session de groupe immédiatement après l'obtention du privilège de session.
PCT/CN2014/086154 2013-09-09 2014-09-09 Procédé, dispositif et appareil d'établissement d'une porteuse de session de groupe WO2015032362A1 (fr)

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