WO2013135068A1 - 数字集群系统中话权申请的方法及系统、设备 - Google Patents

数字集群系统中话权申请的方法及系统、设备 Download PDF

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Publication number
WO2013135068A1
WO2013135068A1 PCT/CN2012/085101 CN2012085101W WO2013135068A1 WO 2013135068 A1 WO2013135068 A1 WO 2013135068A1 CN 2012085101 W CN2012085101 W CN 2012085101W WO 2013135068 A1 WO2013135068 A1 WO 2013135068A1
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Prior art keywords
call
user equipment
right application
core network
network device
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PCT/CN2012/085101
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English (en)
French (fr)
Inventor
周志宏
袁乃华
魏明华
范晨
李明春
贺刚
Original Assignee
鼎桥通信技术有限公司
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Publication of WO2013135068A1 publication Critical patent/WO2013135068A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, system, and device for claiming a call in a digital trunking system. Background technique
  • the digital trunking system is a mobile communication system used for group dispatching and command communication, and is mainly used in the field of professional mobile communications. Different from ordinary mobile communication, the biggest feature of the digital trunking system is that the voice communication uses the Push To Talk (PTT) button to connect in a push-to-talk manner. The called party can answer the call without going off-hook. , and the connection speed is faster, and can support group calls and other functions. Therefore, digital trunking systems can be widely used in areas such as public safety, transportation, social linkage, municipal administration, water conservancy and electric power, factories and mines, and so on.
  • PTT Push To Talk
  • the process of the right to call application may include the following:
  • the UE is in the state of Radio Resource Control (hereinafter referred to as RRC) idle (IDLE), and is connected to the core network through a Radio Network Controller (RNC).
  • RRC Radio Resource Control
  • RNC Radio Network Controller
  • CN initiates a service request (Service Request), first establishes a signaling link and a corresponding bearer, and then initiates a call request by signaling.
  • the embodiments of the present invention provide a method, system, and device for claiming rights in a digital trunking system, which can shorten the delay in the digital trunking system based on TD-LTE and improve call setup efficiency.
  • An embodiment of the present invention provides a method for claiming a right in a digital trunking system, including: a first user equipment acquiring a called group identifier or a second user equipment identifier; and the first user equipment sending, by using a base station, a core network device
  • the right to apply, the call right application is a group call right application carrying the group identifier or a point-to-point call right application carrying the second user equipment identifier.
  • the embodiment of the present invention further provides a method for claiming rights in a digital trunking system, including: a core network device receiving a call right application sent by the first user equipment by using a base station, where the first call right application is carrying a group identifier The group call right application or the point-to-point right application for carrying the second user equipment identifier;
  • the core network device obtains a call right application result from the group scheduling system according to the group identifier or the second user equipment identifier.
  • the embodiment of the invention further provides a user equipment, including:
  • An obtaining module configured to obtain a called group identifier or a second user equipment identifier
  • a sending module configured to send, by using the base station, a call right application to the core network device, where the call right application is a group that carries the group identifier The call right application or the point-to-point right application for carrying the second user equipment identifier.
  • the embodiment of the invention further provides a core network device, including:
  • the receiving module is configured to receive, by the first user equipment, a call right application sent by the base station, where the first call right application is a group call right application carrying a group identifier or a point-to-point call right application carrying a second user equipment identifier ;
  • an obtaining module configured to obtain a call right application result from the group scheduling system according to the group identifier or the second user equipment identifier.
  • the embodiment of the present invention further provides a call authorization application system in a digital trunking system, including the user equipment described above and the core network device described above.
  • the first user equipment acquires the called group identifier or the second user equipment identifier in the digital trunking system of the embodiment of the present invention.
  • the first user equipment directly sends the base station equipment to the core network device.
  • the group call right application carrying the group identifier or the point-to-point call right application carrying the second user equipment identifier.
  • the signaling connection and the corresponding bearer are not established by initiating the service request, and then the call is initiated by signaling, and the group call right application carrying the group identifier is directly initiated.
  • the peer-to-peer right application carrying the second user equipment identifier can effectively shorten the basis
  • FIG. 1 is a signaling diagram of a method for claiming rights in the prior art.
  • FIG. 2 is a flowchart of a method for initiating a call right application in a digital trunking system according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for initiating a call right application in a digital trunking system according to another embodiment of the present invention.
  • FIG. 4 is a signaling diagram of a method for claiming rights in a digital trunking system according to an embodiment of the present invention.
  • FIG. 5 is a signaling diagram of a method for claiming rights in a digital trunking system according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a UE according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a CN device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a CN device according to another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a system for initiating a call right application in a digital trunking system according to an embodiment of the present invention.
  • 1 is a signaling diagram of a method for claiming rights in the prior art. As shown in FIG. 1, the method for claiming rights in the prior art may specifically include the following steps:
  • the UE1 sends a service request (Service Request) to the CN device by using the base station; where the UE is in a Radio Resource Control (RRC) IDLE state.
  • RRC Radio Resource Control
  • This bearer setup is initiated by UE1. Specifically, between the CN and the base station, the CN device sends an Initial Context Setup message to the base station through the S1 interface, and the base station Establish a default bearer and restore a dedicated bearer that has not been deleted. The base station and the UE establish a default bearer in the RRC reconfiguration and recover the dedicated bearer that is not deleted, and bear the bearer bearer between the base station and the UE; thereby establishing a default bearer and recovering between the UE, the base station, and the CN device. Deleted dedicated bearer. For details, refer to related prior art of the existing LTE system, and details are not described herein again.
  • the UE1 initiates a call for the right to carry the UE2 identifier to the CN device on the established and restored bearer.
  • the UE2 is identified as the identity of the UE of the point-to-point end of the UE 1.
  • the CN sends a call right application that carries the UE1 identifier and the UE2 identifier to the scheduling system.
  • the scheduling system determines the call right application result according to the state of the UE2.
  • UE2 when UE2 is idle to grant a UE1 call right application, UE2 does not grant a UE1 call right when it is busy.
  • the scheduling system sends a call right application result to the CN device.
  • the CN device, the base station, and the UE1 establish a dedicated bearer for the use of the right to use; the bearer establishment is initiated by the CN device.
  • the CN device sends a call right application result to UE1.
  • the UE1 receives the call right application result, and when the call right application result is the granting the call right application, the UE1 and the UE2 call, and when the call right application result is that the call right application is not granted, the UE1 cannot make a call with the UE2, and the UE1 hangs up the call. .
  • the process for initiating a call right includes steps 100-102, specifically establishing a signaling link and a corresponding bearer by initiating a service request, and then initiating a call by signaling, which may cause a digital trunk based on TD-LTE.
  • the delay in the system is large, resulting in low call setup efficiency.
  • the following embodiments of the present invention provide a call right application applied to a digital trunking system to effectively shorten the delay in a TD-LTE based digital trunking system and improve call setup efficiency.
  • FIG. 2 is a flowchart of a method for initiating a call right application in a digital trunking system according to an embodiment of the present invention.
  • the executor of the method for initiating a call right application in the digital trunking system of this embodiment is the first UE, and may be UE1.
  • the method for initiating a call authorization in the digital trunking system of this embodiment may specifically include the following steps:
  • the first UE acquires the called group identifier or the second UE identifier. 201. The first UE sends a call right application to the CN device by using the base station.
  • the call right application in this embodiment is a group call right application carrying a group identity or a point-to-point call right application carrying a second UE identity.
  • the method for initiating a call right application in the digital trunking system of the embodiment does not need to first establish a signaling link and a corresponding bearer by initiating a service request, compared with a common point-to-point call right application in the prior art. And then initiating a call by signaling, and directly initiating a group call right application carrying the group identity or a peer-to-peer call right application carrying the second UE identity, thereby effectively shortening the TD-LTE-based digital trunking system Delay, which helps to improve call setup efficiency.
  • the call permission application in the foregoing embodiment shown in FIG. 2 may specifically be a group service request.
  • the first UE initiates a call right application for the CN device to obtain the call right application result from the group scheduling system according to the group identifier or the second UE identifier.
  • the method may further include the following steps:
  • the first UE establishes a transmission link with the CN device through the base station; wherein the establishment of the transmission link is initiated by the CN device according to the result of the call right application.
  • the first UE receives the call right application result sent by the CN device through the transmission link, and the call right application result is obtained by the CN device according to the group identifier or the second UE identifier from the group scheduling system.
  • the result of the right to appeal is to grant the right to speak or not to grant the right to speak.
  • Step (1) "The first UE establishes a transmission link with the CN device through the base station.” Specifically, the establishment of the transmission link is initiated by the CN device, for example, by the CN device according to the result of the right application.
  • the first UE, the base station, and the CN device not only need to establish a default bearer and recover the dedicated bearer that is not deleted, but also establish a corresponding voice dedicated bearer.
  • the first UE, the base station, and the CN device only need to establish a default bearer and recover the dedicated bearer that has not been deleted.
  • the CN device sends an Initial Context Setu message to the base station through the S1 interface, establishes a default bearer with the base station, and restores the dedicated bearer that is not deleted, and establishes a corresponding voice dedicated bearer.
  • the base station and the UE establish a default bearer in the RRC reconfiguration and recover the dedicated bearer that is not deleted, and bear the bearer bearer between the base station and the UE; thereby establishing a default bearer and recovering between the UE, the base station, and the CN device.
  • the bearer between the UE1 and the base station is established, and the bearer between the base station and the CN device is established, so that the establishment of the transmission link between the base station and the CN device by the first UE is implemented.
  • the method further includes: calculating, by the first UE, the short message according to the locally stored integrity key, the local counter, and the content of the message of the right application. a message authentication code (MAC); the first UE then carries the short MAC in the call right application, so that the CN device performs integrity verification on the call request message according to the short MAC.
  • the short MAC may be carried in a cell in the message of the right application.
  • the UE may calculate a MAC value according to the content of the UE's local integrity key, local counter, and call request message. It is sent to the CN device in a cell carried in the call request message.
  • a short MAC value can also be calculated according to the locally stored integrity key, the local counter, and the content of the received right application message; the locally stored integrity key of the UE, the local counter, and the CN side are locally stored.
  • the integrity key and local counter are the same.
  • the CN device also needs to compare two short MACs.
  • the call request message is not modified by the tomb, that is, the integrity verification is performed, otherwise the integrity verification fails, and the CN device discards the message. Right to apply for a message. After the integrity verification is passed, the CN device obtains the call right application result from the group scheduling system according to the group identifier or the second UE identifier.
  • the result of the right to appeal application in the foregoing embodiment includes granting a call right application or not granting a call right application.
  • FIG. 3 is a flowchart of a method for initiating a call right application in a digital trunking system according to another embodiment of the present invention.
  • the execution subject of the method for initiating a call right in this embodiment is a CN device.
  • the method for initiating a call right application in this embodiment may include the following steps: 300.
  • the CN device receives a call right application sent by the first UE by using the base station;
  • the call right application is a group call right application carrying a group identity or a point-to-point call right application carrying a second UE identity.
  • the CN device obtains a call right application result from the group scheduling system according to the group identifier or the second UE identifier.
  • the method for claiming rights in the digital trunking system of this embodiment by using the above technical solution, Compared with the common point-to-point right-to-voice right application in the prior art, the signaling connection and the corresponding bearer are not established by initiating the service request, and then the call is initiated by signaling, and the group call right application carrying the group identifier is directly initiated. Or the peer-to-peer call application carrying the second UE identifier can effectively shorten the delay in the TD-LTE-based digital trunking system, thereby helping to improve call setup efficiency.
  • the call authorization application in the foregoing embodiment shown in FIG. 3 may specifically be a Trunk Service Request.
  • the method further includes: the CN device establishes a transmission link with the first UE by using the base station according to the result of the call right application; and the CN device sends the first link through the transmission link.
  • the UE sends the call request result.
  • the CN device establishes a transmission link with the first UE through the base station. Specifically, the establishment of the transmission link is initiated by the CN device, for example, by the CN device according to the result of the right application, when the call is applied.
  • the CN device when granting the right to call, the CN device establishes a default bearer with the first UE through the base station and recovers the dedicated bearer that has not been deleted, and also establishes a corresponding voice dedicated bearer to form a transmission link, specifically the first UE, the base station, and the CN. Not only should the device establish a default bearer and restore the dedicated bearer that has not been deleted, but also establish a corresponding voice-specific bearer. When the right to apply for the right is not granted, the CN device establishes a default bearer and restores the dedicated bearer that is not deleted through the base station and the UE, to form a transmission link, specifically between the first UE, the base station, and the CN device.
  • the CN device sends an Initial Context Setu message to the base station through the S1 port, establishes a default bearer with the base station, and restores the dedicated bearer that is not deleted, and establishes a corresponding voice dedicated bearer.
  • the base station and the UE establish a default bearer in the RRC reconfiguration and restore the dedicated bearer that is not deleted, and bear the bearer bearer between the base station and the UE; thereby establishing a default bearer and recovering between the UE, the base station, and the CN device. Delete the dedicated bearer and establish the corresponding voice-specific bearer.
  • the bearer between the UE1 and the base station is established, and the bearer between the base station and the CN device is established, so that the establishment of the transmission link between the base station and the CN device by the first UE is implemented.
  • the result of the application for the right to speak includes the application for granting the right to claim or the application for the right to claim.
  • the body can include the following steps:
  • the CN device sends a second call right application carrying the group identifier or the second UE identifier and the first UE identifier to the group scheduling system;
  • the CN device when the first call right application is a group call right application carrying the group identity, the CN device sends a second call right application carrying the group identity and the first UE identity to the group scheduling system.
  • the first call right application is a point-to-point call right application carrying the second UE identity
  • the CN device sends a second call right application carrying the second UE identity and the first UE identity to the group scheduling system.
  • the result of the call right application is determined by the scheduling system according to the current information of the group corresponding to the group identifier or the current information of the second UE, and a preset rule.
  • the group scheduling system determines the result of the call right application, it needs to be determined according to the preset rule and the first UE identifier in the group scheduling system, and various information of the group identifier or the second UE identifier, for example, the group needs to be determined. Whether the group corresponding to the group identifier has a resource, whether a call is in the group corresponding to the group identifier, or whether the UE corresponding to the second UE identifier is in a call, and the priority rule includes a priority mechanism, etc., to determine The result of the right to apply.
  • the group scheduling system may query whether the UE corresponding to the group in the group corresponding to the group identity is speaking. If the UE is speaking, the first UE may not be granted the right. Or, it may be further determined whether the priority of the UE that is speaking is lower than the first UE, and if the priority of the UE that is speaking is lower than the first UE, the UE that is speaking may pause the speech and grant the first UE the right to speak. Or the group scheduling system may query whether the second UE corresponding to the second UE identifier is in a call, and if the call is in progress, the first UE call right may not be granted temporarily.
  • the group scheduling system may determine the result of the call right application according to any preset rule.
  • the scheduling system may also queue the first UE in the call queue, and the result of the right application determined by the group scheduling system is not The right to apply for the right is granted, but the application for the right is not granted for the purpose of temporarily granting the right to apply, and the CN can also be notified that the first UE needs to wait before being granted the right to speak.
  • the CN device receives the call right application sent by the group scheduling system, the call request is not granted, and the first UE is already queued in the call queue.
  • the CN device may further include the following steps before obtaining the call right application result from the group scheduling system according to the group identifier or the second UE identifier:
  • the CN device obtains a short MAC, which is calculated by the first UE according to the first UE local integrity key, the local counter, and the message content of the right application sent by the first UE. ;
  • the CN device determines that the claim for the right to pass the integrity verification.
  • the CN device determines that the call authorization application passes the integrity verification, and specifically includes: the CN device calculates the short MAC according to the integrity key of the CN device, the local counter, and the message content of the call request received by the core network device. And the CN device determines that the short MAC obtained from the received call request is the same as the calculated MAC.
  • the CN device calculates a short MAC value according to the locally stored integrity key of the CN side, the local counter, and the content of the received right application message; wherein the short MAC value carried in the right application message received by the CN device is based on the UE
  • the UE's local stored integrity key, local counter, and content of the call application are calculated.
  • the integrity key stored in the UE and the local counter are the same as the local integrity key stored on the CN side and the local counter.
  • the CN device also needs to compare two short MACs. If two short MACs are used, the call right application is not modified by the tomb, that is, the integrity verification is performed, otherwise the integrity verification fails, and the CN device discards the right. Application. After the integrity verification is passed, step 301 is performed.
  • the method may further include: the CN first verifying the call authorization application initiated by the first UE, for example, when the call right application is a group call, the right to initiate the first UE
  • the application for verification includes verifying the identity of the first UE, that is, verifying whether the first UE belongs to a group corresponding to the group identity.
  • the verification of the right-of-the-box application initiated by the first UE includes the verification of the right of the first UE to initiate the call-to-speech application, and the related art, and details are not described herein.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed to perform the steps including the foregoing method embodiments; and the foregoing storage medium includes: a ROM, A variety of media that can store program code, such as RAM, disk, or optical disk.
  • FIG. 4 is a signaling diagram of a method for claiming rights in a digital trunking system according to an embodiment of the present invention. As shown in FIG. 4, the method for claiming rights of the embodiment may include the following steps: 400.
  • the UE1 sends a group call right application that carries the group identifier to the CN device by using the base station. For example, the UE1 may send the CN1 to the CN device through the base station.
  • a group call right application that carries a group ID.
  • the CN device sends the carrying group identifier to the group scheduling system according to the group identifier.
  • the group scheduling system determines, according to the preset rule, the UE1 identifier and the group identifier, the right to apply for granting the UE1.
  • the group scheduling system determines that the priority of the currently speaking UE is lower than the priority of UE1, so as to determine that the UE1 grant right application is granted.
  • the group scheduling system determines the process of granting the call right application to the UE1 according to the preset rule and the UE1 identifier and the group identifier.
  • the group scheduling system sends a message for granting the UE 1 call right request to the CN device.
  • the CN device establishes a default bearer with the base station according to the application for the right to grant the UE1, and restores the dedicated bearer that is not deleted, and establishes a corresponding voice dedicated bearer.
  • a transmission link is established between the CN device, the base station, and UE1.
  • the CN device sends a message to the UE 1 that grants the UE 1 call right application.
  • the CN device sends a message for granting the UE1 call right application to the UE1 through the bearer established above.
  • the UE1 receives a message for granting the UE1 call right application, and speaks in the group corresponding to the group identifier. For example, the UE1 initiates a speech in the group corresponding to the group identity by using the voice dedicated bearer established above.
  • the UE1 hangs up the call after receiving the message that the UE1 does not grant the call.
  • the call right application result is not granted to UE1, but the group scheduling system has already placed UE1 into the call queue, that is, UE1 can continue to wait, UE1 may also choose to continue waiting.
  • the method for claiming rights in the digital trunking system of the present embodiment does not need to first establish a signaling link and a corresponding bearer by initiating a service request, and then, compared with the conventional point-to-point right-to-voice right application in the prior art, and then Initiating a call by signaling, and directly initiating a group call right application carrying the group identity or a point-to-point call right application carrying the second UE identity, thereby effectively shortening the delay in the TD-LTE-based digital trunking system , which helps to improve call setup efficiency.
  • FIG. 5 is a signaling diagram of a method for claiming rights in a digital trunking system according to another embodiment of the present invention. As shown in FIG. 5, the method for claiming rights of the embodiment may include the following steps: 500.
  • the UE1 sends, by using the base station, a point call right application that carries the UE2 identifier of the same group as the UE1 to the CN device.
  • the UE1 may send a call-to-call right application carrying the UE2 identifier to the CN device through the base station.
  • the UE1 and the UE2 belong to the same group as an example to describe the technical solution of the present invention. In actual applications, the UE1 and the UE2 may not belong to the same group.
  • the CN device sends the carrying UE2 identifier to the group scheduling system according to the UE2 identifier.
  • the group scheduling system determines, according to the preset rule, the UE1 identifier and the UE2 identifier, that the call right application is not granted to UE1.
  • the group scheduling system determines that UE2 is speaking, and can determine that the UE1 call right application is not granted.
  • the group scheduling system determines the process of not granting the right to apply for the UE1 according to the preset rule and the UE1 identifier and the UE2 identifier.
  • the technical solution of the present invention is introduced by taking the call application result that is not granted to the UE1 as an example.
  • the group scheduling system sends a message that does not grant the UE1 call right request to the CN device. 504.
  • the CN device establishes a default bearer and restores a dedicated bearer that is not deleted according to the result of the call right application that is not granted to the UE1.
  • the device establishes a transmission link between the device and the base station and the UE1 through the steps 502 and 503.
  • the CN device sends, to UE1, a message that does not grant a UE1 call right application.
  • UE1 receives a message that does not grant a UE1 call right request, hangs up the call, or continues to wait. When the UE1 does not grant the UE1 call request, the UE1 may choose to continue to wait. Otherwise, UE1 directly hangs up the call.
  • the processing may refer to the related situation in the embodiment shown in FIG. 4, and details are not described herein again.
  • the method for claiming rights in the digital trunking system of the present embodiment does not need to first establish a signaling link and a corresponding bearer by initiating a service request, and then, compared with the conventional point-to-point right-to-voice right application in the prior art, and then Initiating a call by signaling, and directly initiating a group call right application carrying the group identity or a point-to-point call right application carrying the second UE identity, thereby effectively shortening the delay in the TD-LTE-based digital trunking system , which helps to improve call setup efficiency.
  • FIG. 6 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in FIG. 6, the UE in this embodiment may specifically include an obtaining module 10 and a sending module 11.
  • the obtaining module 10 is configured to acquire the called group identifier or the second UE device identifier.
  • the sending module 11 is connected to the acquiring module 10, and the sending module 11 is configured to send a call right application to the CN device by using the base station, where the call right application is carried. Obtaining a group right claim of the group identifier acquired by the module 10 or a point pair for the second UE identifier acquired by the acquiring module 10, and a call right application.
  • the UE in this embodiment implements the same as the implementation mechanism of the foregoing method in the digital cluster system by using the foregoing modules.
  • the UE in this embodiment implements the same as the implementation mechanism of the foregoing method in the digital cluster system by using the foregoing modules.
  • the UE in this embodiment implements the call right application in the digital trunking system by using the above module.
  • the UE does not need to establish a signaling link and a corresponding bearer by initiating a service request, and then Initiating a call by signaling, and directly initiating a group call right application carrying the group identity or a point-to-point call right application carrying the second UE identity, thereby effectively shortening the delay in the TD-LTE-based digital trunking system , which helps to improve Call setup efficiency.
  • FIG. 7 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 7, the UE in this embodiment may further include the following technical solutions on the basis of the foregoing embodiment shown in FIG. 6.
  • the UE in this embodiment further includes a computing module 12 and a carrying module 13.
  • the calculation module 12 is configured to calculate a short MAC according to the message content of the locally stored integrity key, the local counter, and the voice request; the carrying module 13 is connected to the computing module 12, and the carrying module 13 is configured to carry the calculation in the call right application.
  • the sending module 11 is connected to the carrying module 13.
  • the sending module 11 is configured to send, by using the base station, the call right application processed by the carrying module 13 to the CN device, that is, the short MAC request.
  • the application for the right sent by the sending module 11 is used for
  • the CN device obtains the call right application result from the group scheduling system according to the group identifier or the second UE identifier.
  • the UE in this embodiment may further include an establishing module 14 and a receiving module 15.
  • the establishing module 14 is configured to establish a transmission link with the CN device by using the base station, where the establishment of the transmission link is initiated by the CN device according to the result of the call right application.
  • the receiving module 15 is connected to the establishing module 14, and the receiving module 15 is configured to receive a call request result sent by the CN device by using the transmission link established by the establishing module 14, where the result of the call right application is that the CN device is based on the group identifier or the second UE identifier. Obtained from the group scheduling system.
  • the result of the right to appeal is to grant or not to grant the right to speak.
  • the call right application result includes granting a call right application or not granting a call right application.
  • the UE in this embodiment can implement the call right application in the digital trunking system by using the subsequent extended technical solution of the embodiment shown in FIG. 2 above.
  • the subsequent extended technical solutions of the foregoing embodiment shown in FIG. 2 and details are not described herein again.
  • the UE in this embodiment implements the call right application in the digital trunking system by using the above module.
  • the UE does not need to establish a signaling link and a corresponding bearer by initiating a service request, and then Initiating a call by signaling, and directly initiating a group call right application carrying the group identity or a point-to-point call right application carrying the second UE identity, thereby effectively shortening the delay in the TD-LTE-based digital trunking system , which helps to improve call setup efficiency.
  • FIG. 8 is a schematic structural diagram of a CN device according to an embodiment of the present invention. As shown in Figure 8, The CN device of this embodiment may specifically include: a receiving module 20 and an obtaining module 21.
  • the receiving module 20 is configured to receive a call permission application sent by the first UE by using the base station, and the call right application is a group call right application that carries the group identifier or a point-to-point call right application that carries the second UE identifier; the acquiring module 21 and the receiving module The 20 connection, the obtaining module 21 is configured to obtain the call right application result from the group scheduling system according to the group identifier or the second UE identifier in the right application received by the receiving module 20.
  • the CN device of the present embodiment is the same as the implementation of the foregoing method in the digital cluster system by using the above-mentioned modules.
  • the CN device of the present embodiment is the same as the implementation of the foregoing method in the digital cluster system by using the above-mentioned modules.
  • the CN device in this embodiment implements the call right application in the digital trunking system by using the above module.
  • the signaling link and the corresponding bearer are not required to be established by initiating the service request.
  • the call is initiated by signaling, and the group call right application carrying the group identity or the point-to-point call right application carrying the second UE identity is directly initiated, thereby effectively shortening the time in the TD-LTE-based digital trunking system. Delay, which helps to improve call setup efficiency.
  • FIG. 9 is a schematic structural diagram of a CN device according to another embodiment of the present invention. As shown in FIG. 9, the CN device of this embodiment may further include the following technical solutions on the basis of the foregoing embodiment shown in FIG. 8.
  • the determining device 22 may also be included in the CN device of this embodiment.
  • the obtaining module 21 is further configured to: when the short-term MAC is carried in the right-of-rights application, after the receiving module 20 receives the call-righting application sent by the first UE, the acquiring module 21 obtains the group according to the group identifier or the second UE identifier. Before the group scheduling system obtains the call right application result, the short MAC is obtained from the call right application, and the short MAC is calculated by the first UE according to the first UE local integrity key, the local counter, and the message content of the right application sent by the first UE. owned.
  • the determining module 22 is connected to the obtaining module 21, and the determining module 22 is configured to determine, according to the short MAC obtained by the obtaining module 21, the right claim to pass the integrity verification.
  • the determining module 22 may specifically include a calculating unit 221 and a determining unit 222.
  • the calculating unit 221 is connected to the receiving module 20, and the calculating unit 221 is configured to calculate a short MAC according to the integrity key of the CN locality, the local counter, and the content of the message of the received right application received by the receiving module 20; the determining unit 222 and the obtaining module respectively 21 and calculation unit
  • the 221 connection, determining unit 222 is configured to determine that the short MAC obtained from the received call right application from the obtaining module 21 is the same as the short MAC calculated by the computing unit 221.
  • the obtaining module 21 is further configured to: after the determining unit 222 determines that the short MAC obtained by the obtaining module 21 from the received right application is the same as the short MAC calculated by the calculating unit 221, according to the group identifier or the second UE in the right application Identification, obtaining the result of the call right application from the group scheduling system.
  • the CN device in this embodiment may further include: an establishing module 23 and a sending module 24.
  • the establishing module 23 is connected to the obtaining module 21, and the establishing module 23 is configured to establish a transmission link with the first UE by using the base station according to the result of the call right application obtained by the obtaining module 21.
  • the sending module 24 is connected to the obtaining module 21 and the establishing module 23, respectively, and the sending module 24 is configured to send the call right application result obtained by the obtaining module 21 to the first UE by using the transmission link established by the establishing module 23.
  • the result of the call right application in this embodiment includes granting a call right application or not granting a call right application.
  • the establishing module 23 is specifically configured to establish, by the base station, a default bearer and restore a dedicated bearer that is not deleted, and establish a corresponding voice dedicated bearer, when the call right application obtained by the obtaining module 21 is the granting the call right application, To form the transmission link, or the establishing module 23 is specifically configured to establish, by the base station, a default bearer and a dedicated bearer that is not deleted when the call right application obtained by the obtaining module 21 is not granted the call right application, To form the transmission link.
  • the acquiring module 21 in the UE in this embodiment may further include a sending unit and a receiving unit.
  • the sending unit is connected to the receiving module 20, and the sending unit is configured to send, to the group scheduling system, a group right identifier or a second UE identifier in the call right application received by the receiving module 20, and a call right application of the first UE identifier;
  • the result of the call right application sent by the group scheduling system is received;
  • the result of the call right application is determined by the scheduling system according to the current information of the group corresponding to the group identifier or the current information of the second UE, and a preset rule.
  • the corresponding establishing module 23 is connected to the receiving unit, and the establishing module 23 is configured to establish a transmission link with the first UE by using the base station according to the result of the call right application received by the receiving unit.
  • the sending module 24 is connected to the receiving unit, and the sending module 24 is configured to send, by the transmission link established by the establishing module 23, the call request result received by the receiving unit to the first UE.
  • the subsequent extension technical solution of the embodiment shown in FIG. 3 can be used to implement the right to call application in the digital trunking system. Detailed can Reference is made to the subsequent extended technical solutions of the foregoing embodiment shown in FIG. 3, and details are not described herein again.
  • the CN device of the present embodiment is the same as the implementation of the foregoing method in the digital cluster system by using the above-mentioned modules.
  • the CN device of the present embodiment is the same as the implementation of the foregoing method in the digital cluster system by using the above-mentioned modules.
  • the CN device in this embodiment implements the call right application in the digital trunking system by using the above module.
  • the signaling link and the corresponding bearer are not required to be established by initiating the service request.
  • the call is initiated by signaling, and the group call right application carrying the group identity or the point-to-point call right application carrying the second UE identity is directly initiated, thereby effectively shortening the time in the TD-LTE-based digital trunking system. Delay, which helps to improve call setup efficiency.
  • FIG. 10 is a schematic structural diagram of a system for initiating a call right application in a digital trunking system according to an embodiment of the present invention.
  • the call authorization system in the digital trunking system of this embodiment includes a UE 30 and a CN device 40.
  • the UE 30 in this embodiment may specifically use the UE shown in FIG. 6 or FIG. 7 above.
  • the CN device 40 of the embodiment may specifically use the CN device of the embodiment shown in FIG. 8 or FIG. 9 , and the UE 30 and the CN device 40 in the state adjustment system in the digital trunking system of the embodiment may specifically use the foregoing figure.
  • the call right application method can implement the call right application.
  • the call right application system implements the call right application in the digital trunking system by using the UE and the CN device, and does not need to initiate the service request firstly compared with the ordinary point-to-point call right application in the prior art.
  • the device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to at least two network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

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Abstract

本发明实施例提供一种数字集群系统中话权申请的方法及系统、设备。方法包括：第一UE获取被呼叫的群组标识或者第二UE标识；该第―UE通过基站向CN设备发送话权申请，该话权申请为携带群组标识的群组话权申请或者为携带第二UE标识的点对点话权申请。本发明实施例的技术方案，与现有技术中普通的点对点话权申请相比，不用先通过发起服务请求建立信令链接以及相应的承载，然后通过信令来发起呼叫，而直接发起携带群组标识的群组话权申请或者为携带第二用户设备标识的点对点话权申请，从而能够有效地缩短基于TD-LTE的数字集群系统中的时延，从而有助于提高呼叫建立效率。

Description

数字集群系统中话权申请的方法及系统、 设备 技术领域 本发明实施例涉及通信技术领域， 尤其涉及一种数字集群系统中话权 申请的方法及系统、 设备。 背景技术
数字集群系统是一种用于集团调度指挥通信的移动通信系统， 主要应用 在专业移动通信领域。 和普通的移动通信不同， 数字集群系统最大的特点是 语音通信釆用即按即说（ Push To Talk; 以下简称 PTT )按键， 以一按即通的 方式接续， 被叫无需摘机即可接听， 且接续速度较快， 并能支持群组呼叫等 功能。 因此数字集群系统可以广泛应用在如公共安全、 交通运输、 社会联动、 市政管理、 水利电力、 厂矿企业等等领域中。
现有技术中，在时分同步的码分多址长期演进 (Time Division-Synchronous Code Division Multiple Access Long Term Evolution; 简称 TD-SCDMA Long Term Evolution; 还可以进一步简称为 TD-LTE)中， UE的点对点话权申请的 流程可以包括如下： UE在无线资源控制 （ Radio Resource Control; 以下简称 RRC )空闲（ IDLE )状态下，通过无线网络控制器（ Radio Network Controller; 以下简称 RNC )向核心网（ Core Network;以下简称 CN )发起服务请求（ Service Request ) , 先建立信令链接以及相应的承载， 然后通过信令来发起话权申请。
由于在数字集群系统中对时延的要求极为苛刻， 若在基于 TD-LTE的数 字集群系统中， 釆用上述现有技术的普通的点对点话权申请流程， 先通过发 起服务请求建立信令链接以及相应的承载， 然后通过信令来发起呼叫， 会造 成基于 TD-LTE的数字集群系统中的时延较大，从而导致呼叫建立效率较低。 因此亟需一种应用于数字集群系统中的话权申请的方案。 发明内容
本发明实施例提供一种数字集群系统中话权申请的方法及系统、 设 备，能够缩短基于 TD-LTE的数字集群系统中的时延，提高呼叫建立效率。 本发明实施例提供一种数字集群系统中话权申请的方法， 包括： 第一用户设备获取被呼叫的群组标识或者第二用户设备标识； 所述第一用户设备通过基站向核心网设备发送话权申请， 所述话权申 请为携带所述群组标识的群组话权申请或者为携带所述第二用户设备标 识的点对点话权申请。
本发明实施例还提供一种数字集群系统中话权申请的方法， 包括： 核心网设备接收所述第一用户设备通过基站发送的话权申请， 所述第 一话权申请为携带群组标识的群组话权申请或者为携带第二用户设备标 识的点对点话权申请；
所述核心网设备根据所述群组标识或者所述第二用户设备标识， 从群 组调度系统获取话权申请结果。
本发明实施例还提供一种用户设备， 包括：
获取模块， 用于获取被呼叫的群组标识或者第二用户设备标识； 发送模块， 用于通过基站向核心网设备发送话权申请， 所述话权申请 为携带所述群组标识的群组话权申请或者为携带所述第二用户设备标识 的点对点话权申请。
本发明实施例还提供一种核心网设备， 包括：
接收模块， 用于接收所述第一用户设备通过基站发送的话权申请， 所 述第一话权申请为携带群组标识的群组话权申请或者为携带第二用户设 备标识的点对点话权申请；
获取模块， 用于根据所述群组标识或者所述第二用户设备标识， 从群 组调度系统获取话权申请结果。
本发明实施例还提供一种数字集群系统中话权申请系统， 包括上述所 述的用户设备和上述所述的核心网设备。
本发明实施例的数字集群系统中发起话权申请的方法及系统、 设备， 第一用户设备获取被呼叫的群组标识或者第二用户设备标识； 第一用户设 备直接通过基站向核心网设备发送携带群组标识的群组话权申请或者为 携带第二用户设备标识的点对点话权申请。 与现有技术中普通的点对点话 权申请相比， 不用先通过发起服务请求建立信令链接以及相应的承载， 然 后通过信令来发起呼叫， 而直接发起携带群组标识的群组话权申请或者为 携带第二用户设备标识的点对点话权申请， 从而能够有效地缩短基于
TD-LTE的数字集群系统中的时延， 从而有助于提高呼叫建立效率。 附图说明 图 1为现有技术中话权申请方法的信令图。
图 2为本发明一实施例提供的数字集群系统中发起话权申请的方法的 流程图。
图 3为本发明另一实施例提供的数字集群系统中发起话权申请的方法 的流程图。
图 4 为本发明一实施例提供的数字集群系统中话权申请方法的信令 图。
图 5为本发明另一实施例提供的数字集群系统中话权申请方法的信令 图。
图 6为本发明一实施例提供的 UE的结构示意图。
图 7为本发明另一实施例提供的 UE的结构示意图。
图 8为本发明一实施例提供的 CN设备的结构示意图。
图 9为本发明另一实施例提供的 CN设备的结构示意图。
图 10为本发明实施例提供的数字集群系统中发起话权申请的系统的 结构示意图。 具体实施方式 图 1为现有技术中话权申请方法的信令图。 如图 1所示， 现有技术中 的话权申请的方法， 具体可以包括如下 步骤：
100、 UE1向通过基站向 CN设备发起服务请求 （ Service Request ) ； 其中 UE在无线资源控制协议（ Radio Resource Control； RRC ) IDLE 状态下。
101、 UE1、 CN设备和基站之间建立默认承载和恢复没有删除的专用 承载；
该承载建立由 UE1发起。 具体地， CN和基站之间， 是 CN设备通过 S1 口向基站发送初始上下文建立 （ Initial Context Setup ) 消息， 与基站之 间建立默认承载和恢复没有删除的专用承载。 而基站和 UE之间是在 RRC 重配中建立默认承载和恢复没有删除的专用承载， 基站和 UE之间的承载 空口承载； 从而实现在 UE、 基站和 CN设备之间建立默认承载和恢复没 有删除的专用承载。详细亦可以参考现有 LTE系统的相关现有技术，在此 不再赘述。
102、 UE1在建立和恢复的承载上向 CN设备发起携带 UE2标识的话 权申请；
其中 UE2标识为 UE 1的点呼对端的 UE的标识。
103、 CN向调度系统发送携带 UE 1标识和 UE2标识的话权申请； 104、 调度系统根据 UE2的状态确定话权申请结果；
例如当 UE2空闲授予 UE1话权申请，当 UE2占线不授予 UE1话权申 请。
105、 调度系统向 CN设备发送话权申请结果；
106、 CN设备、 基站和 UE1建立话权使用的专用承载； 该承载建立 由 CN设备发起。
107、 CN设备向 UE1发送话权申请结果；
这样， UE1接收话权申请结果， 当话权申请结果为授予话权申请时， UE1与 UE2通话， 当话权申请结果为不授予话权申请时， UE1不能与 UE2 进行通话， UE1挂断电话。
上述现有技术中， 发起话权申请过程中包括步骤 100-102, 具体先通 过发起服务请求建立信令链接以及相应的承载， 然后通过信令来发起呼 叫， 会造成基于 TD-LTE的数字集群系统中的时延较大， 从而导致呼叫建 立效率较低。 因此， 本发明的下述实施例提供一种应用于数字集群系统中 的话权申请， 以有效地缩短基于 TD-LTE的数字集群系统中的时延， 提高 呼叫建立效率。
图 2为本发明一实施例提供的数字集群系统中发起话权申请的方法的 流程图。 如图 2所示， 本实施例的数字集群系统中发起话权申请的方法的 执行主体为第一 UE, 如可以为 UE1。 本实施例的数字集群系统中发起话 权申请的方法， 具体可以包括如下步骤：
200、 第一 UE获取被呼叫的群组标识或者第二 UE标识； 201、 第一 UE通过基站向 CN设备发送话权申请；
本实施例的话权申请为携带群组标识的群组话权申请或者为携带第 二 UE标识的点对点话权申请
本实施例的数字集群系统中发起话权申请的方法， 通过釆用上述技术 方案， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请 求建立信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起 携带群组标识的群组话权申请或者为携带第二 UE标识的点对点话权申 请， 从而能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有 助于提高呼叫建立效率。
可选地， 上述图 2所示实施例中的话权申请具体可以为群组业务请求
( Trunk Service Request ) 。
可选地， 上述图 2所示实施例中的， 201中第一 UE发起的话权申请 以供 CN设备根据群组标识或者第二 UE标识， 从群组调度系统获取话权 申请结果。 具体地在上述步骤 201之后， 具体还可以包括如下步骤：
( 1 )第一 UE通过基站与 CN设备建立传输链路； 其中传输链路的建 立是由 CN设备根据话权申请结果发起的。
( 2 )第一 UE接收 CN设备通过传输链路发送的话权申请结果， 该话 权申请结果为 CN设备根据群组标识或者第二 UE标识， 从群组调度系统 获取的。 该话权申请结果为授予话权或者不授予话权。
其中的步骤 ( 1 ) "第一 UE通过基站与 CN设备建立传输链路"， 具体 地， 该传输链路的建立是由 CN设备发起的， 例如是由 CN设备根据话权 申请的结果发起的， 当话权申请结果为授予话权时， 第一 UE、 基站和 CN 设备之间不仅要建立默认承载和恢复没有删除的专用承载， 同时还要建立 相应的语音专用承载。 而当话权申请结果为不授予话权时， 第一 UE、 基 站和 CN设备之间仅需要建立默认承载和恢复没有删除的专用承载。同理， CN和基站之间， 是 CN设备通过 S1 口向基站发送 Initial Context Setu 消 息， 与基站之间建立默认承载和恢复没有删除的专用承载， 以及建立相应 的语音专用承载。而基站和 UE之间是在 RRC重配中建立默认承载和恢复 没有删除的专用承载， 基站和 UE之间的承载空口承载； 从而实现在 UE、 基站和 CN设备之间建立默认承载和恢复没有删除的专用承载， 以及建立 相应的语音专用承载。详细亦可以参考现有 LTE系统的相关现有技术，在 此不再赘述。 UE1与基站之间的承载建立、 基站与 CN设备之间的承载建 立， 从而才实现第一 UE通过基站与 CN设备之间的传输链路的建立。
进一步可选地，在上述图 2所示实施例的基础上，其中步骤 201之前， 还可以包括： 第一 UE根据本地所存的完整性密钥、 本地计数器以及话权 申请的消息内容计算短信息验证码 ( Message Authentication Code; MAC )； 然后第一 UE在话权申请中携带该短 MAC , 以供 CN设备根据该短 MAC 对该话权申请消息进行完整性验证。 其中该短 MAC具体可以携带在话权 申请的消息中的一个信元中。
例如， 在可以参考公网的协议中的相关技术， UE可以根据 UE本地 所存完整性密钥， 本地计数器， 话权申请消息的内容计算一个 MAC值出 来。 携带在话权申请消息的一个信元中发给 CN设备。 而 CN设备侧， 同 样可以根据 CN侧本地所存完整性密钥， 本地计数器， 以及接收到的话权 申请消息内容计算一个短 MAC值； 其中 UE本地所存完整性密钥、 本地 计数器与 CN侧本地所存完整性密钥、 本地计数器相同。 同时 CN设备还 需要将两个短 MAC比较， 若两个短 MAC—样， 则此话权申请消息没有 被墓改， 即通过完整性验证， 否则完整性验证不通过， CN设备丟弃该话 权申请消息。 在完整性验证通过之后， CN设备才根据群组标识或者第二 UE标识， 从群组调度系统获取话权申请结果。
可选地， 上述实施例中的话权申请结果包括授予话权申请或者不授予 话权申请。
图 3为本发明另一实施例提供的数字集群系统中发起话权申请的方法 的流程图。 如图 3所示， 本实施例的发起话权申请的方法的执行主体为 CN设备。 本实施例的发起话权申请的方法， 具体可以包括如下步骤： 300、 CN设备接收第一 UE通过基站发送的话权申请；
该话权申请为携带群组标识的群组话权申请或者为携带第二 UE标识 的点对点话权申请。
301、 CN设备根据群组标识或者第二 UE标识， 从群组调度系统获取 话权申请结果。
本实施例的数字集群系统中话权申请方法， 通过釆用上述技术方案， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求建立 信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携带群 组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而 能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于提高 呼叫建立效率。
可选地， 上述图 3所示实施例中的话权申请具体可以为群组业务请求 ( Trunk Service Request ) 。
可选地， 上述图 3所示实施例中的步骤 301之后， 具体还可以包括： CN设备根据话权申请结果， 通过基站与第一 UE建立传输链路； CN设备 通过传输链路向第一 UE发送话权申请结果。 其中 "CN设备通过基站与 第一 UE建立传输链路"，具体地，该传输链路的建立是由 CN设备发起的， 例如是由 CN设备根据话权申请的结果发起的， 当话权申请结果为授予话 权时， CN设备通过基站与第一 UE建立默认承载和恢复没有删除的专用 承载， 同时还要建立相应的语音专用承载， 以形成传输链路， 具体地第一 UE、 基站和 CN设备之间不仅要建立默认承载和恢复没有删除的专用承 载， 同时还要建立相应的语音专用承载。 而当话权申请结果为不授予话权 时， CN设备通过基站与第 ― UE仅建立默认承载和恢复没有删除的专用 承载， 以形成传输链路， 具体地第一 UE、 基站和 CN设备之间仅需要建 立默认承载和恢复没有删除的专用承载。 同理， CN和基站之间， 是 CN 设备通过 S 1 口向基站发送 Initial Context Setu 消息， 与基站之间建立默 认承载和恢复没有删除的专用承载， 以及建立相应的语音专用承载。 而基 站和 UE之间是在 RRC重配中建立默认承载和恢复没有删除的专用承载， 基站和 UE之间的承载空口承载； 从而实现在 UE、基站和 CN设备之间建 立默认承载和恢复没有删除的专用承载， 以及建立相应的语音专用承载。 详细亦可以参考现有 LTE系统的相关现有技术， 在此不再赘述。 UE1与 基站之间的承载建立、 基站与 CN设备之间的承载建立， 从而才实现第一 UE通过基站与 CN设备之间的传输链路的建立。
其中话权申请结果包括授予话权申请或者不授予话权申请。
可选地， 在上述图 3所示实施例的基础上， 其中的步骤 301"CN设备 根据群组标识或者第二 UE标识， 从群组调度系统获取话权申请结果， 具 体可以包括如下步骤：
( a )CN设备向群组调度系统发送携带述群组标识或者第二 UE标识、 以及第一 UE标识的第二话权申请；
即当第一话权申请为携带群组标识的群组话权申请时， CN设备向群 组调度系统发送携带述群组标识以及第一 UE标识的第二话权申请。 当第 一话权申请为携带第二 UE标识的点对点话权申请时 , CN设备向群组调 度系统发送携带第二 UE标识以及第一 UE标识的第二话权申请。
( b ) CN设备接收群组调度系统发送的话权申请结果；
其中该话权申请结果为调度系统根据群组标识对应的群组的当前信 息或者第二 UE的当前信息， 以及预设规则确定的。
其中群组调度系统确定话权申请结果之前， 需要根据群组调度系统中 预设的规则和第一 UE标识， 以及群组标识或者第二 UE标识的各种信息 来确定， 例如需要确定该群组标识对应的群组有无资源、 该群组标识对应 的群组中是否有人通话， 或者第二 UE标识对应的 UE是否正在通话， 以 及预设规则中包括优先级机制等等信息， 来确定话权申请的结果。
例如当预设规则中包括优先级机制时， 群组调度系统可以查询群组标 识对应的群组中是否有 UE正在讲话， 若有 UE正在讲话， 那么可以暂时 不授予该第一 UE话权。 或者还可以进一步判断正在讲话的 UE的优先级 是否低于第一 UE, 若正在讲话的 UE的优先级低于第一 UE, 可以让正在 讲话的 UE暂停讲话， 授予该第一 UE话权。 或者群组调度系统可以查询 第二 UE标识对应的第二 UE是否正在通话中， 若正在通话中， 那么可以 暂时不授予该第一 UE话权。 或者还可以进一步判断正在与第二 UE讲话 的 UE的优先级是否低于第一 UE的优先级， 若正在与第二 UE讲话的 UE 的优先级低于第一 UE的优先级， 可以让正在与第二 UE讲话的 UE暂停 讲话， 授予该第一 UE话权。 以上仅为可选地实例， 实际应用中， 群组调 度系统可以按照预设的任意规则， 确定话权申请结果。
进一步可选地， 当群组中有 UE正在讲话或者第二 UE正在通话时， 调度系统也可以将该第一 UE排在通话队列中， 此时群组调度系统确定的 话权申请的结果为不授予话权申请， 但是该不授予话权申请为暂时不授予 话权申请， 同时还可以在告知 CN, 第一 UE需要等待才会被授予话权。 对应地当 CN设备收到群组调度系统发送的话权申请结果为不授予话权申 请， 且已经将第一 UE排在通话队列中。
进一步可选地， 与上述图 2所示实施例的的后续扩展实施例相似， 在 上述图 3所示实施例的基础上， 当步骤 300中接收的话权申请中还携带有 短 MAC时， CN设备接收第 ― UE通过基站发送的话权申请之后， CN设 备根据群组标识或者第二 UE标识， 从群组调度系统获取话权申请结果之 前， 还可以包括如下步骤：
( a ) CN设备从接收的话权申请中获取短 MAC ,该短 MAC码为第一 UE根据第一 UE本地的完整性密钥、本地计数器以及第一 UE发送的话权 申请的消息内容计算得到的；
( b ) CN设备确定该话权申请通过完整性验证。
进一步地上述步骤（b ) CN设备确定话权申请通过完整性验证， 具体 可以包括： CN设备根据 CN设备本地的完整性密钥、 本地计数器以及核 心网设备接收的话权申请的消息内容计算短 MAC； 以及 CN设备确定从 接收的话权申请中获取的短 MAC与计算得到的 MAC相同。
具体地， CN设备根据 CN侧本地所存完整性密钥， 本地计数器， 以 及接收到的话权申请消息内容计算一个短 MAC值； 其中 CN设备接收到 的话权申请消息中携带的短 MAC值为 UE根据 UE本地所存完整性密钥， 本地计数器，话权申请的内容计算出来的。其中 UE本地所存完整性密钥、 本地计数器与 CN侧本地所存完整性密钥、 本地计数器相同。 同时 CN设 备还需要将两个短 MAC比较， 若两个短 MAC—样， 则此话权申请没有 被墓改， 即通过完整性验证， 否则完整性验证不通过， CN设备丟弃该话 权申请。 在完整性验证通过之后， 再执行步骤 301。
进一步， 可选地， 在步骤 301之前， 步骤 300之后， 还可以包括： CN先对第一 UE发起的话权申请进行验证， 例如当话权申请为群组 呼叫时， 对第一 UE发起的话权申请进行验证包括对第一 UE的身份进行 验证， 即验证该第一 UE是否属于群组标识对应的群组。 或者对第一 UE 发起的话权申请进行验证包括对第一 UE发起话权申请的权限的验证等 等， 详细亦可以参考相关现有技术， 在此不再赘述。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机 可读取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。
图 4为本发明一实施例提供的数字集群系统中话权申请方法的信令 图。 如图 4所示， 本实施例的话权申请方法， 具体可以包括如下步骤： 400、 UE1通过基站向 CN设备发送携带群组标识的组呼话权申请； 例如 UE1具体可以通过基站向 CN设备发送携带群组标识的组呼话权 申请。
401、 CN设备根据群组标识， 向群组调度系统发送携带群组标识和
UE1标识的话权申请；
402、 群组调度系统根据预设规则以及 UE1标识和群组标识， 确定授 予 UE1的话权申请；
例如群组调度系统确定当前讲话的 UE的优先级低于 UE1的优先级， 便可以确定授予 UE1话权申请。 群组调度系统根据预设规则以及 UE1标 识和群组标识，确定授予 UE1的话权申请的过程，详细可以参考上述实施 例的相关记载， 在此不再赘述。
本实施例中是以话权申请结果为授予 UE1的话权申请为例介绍本发 明的技术方案。
403、 群组调度系统向 CN设备发送授予 UE 1话权申请的消息；
404、 CN设备根据授予 UE1的话权申请， 与基站之间建立默认承载 和恢复没有删除的专用承载， 以及建立相应的语音专用承载；
405、 基站与 UE1之间建立默认承载和恢复没有删除的专用承载， 以 及建立相应的语音专用承载；
通过步骤 402和 403 , CN设备、 基站与 UE1之间建立传输链路。
406、 CN设备向 UE 1发送授予 UE 1话权申请的消息；
例如 CN设备通过上述建立的承载向 UE1发送授予 UE1话权申请的 消息。
407、 UE1接收授予 UE1话权申请的消息 , 并在群组标识对应的群组 中讲话。 例如 UE1通过上述建立的语音专用承载在群组标识对应的群组中发 起讲话。
本实施例中， 当话权申请结果为不授予 UE1的话权申请时， 对应地， UE1接收不授予 UE1话权申请的消息后， 挂断呼叫。 当话权申请结果为 不授予 UE1的话权申请，但是群组调度系统已经将可 UE1排入呼叫队列， 即 UE1可以继续等待时， UE1也可以选择继续等待。
本实施例的数字集群系统中话权申请方法， 通过釆用上述技术方案， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求建立 信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携带群 组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而 能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于提高 呼叫建立效率。
图 5为本发明另一实施例提供的数字集群系统中话权申请方法的信令 图。 如图 5所示， 本实施例的话权申请方法， 具体可以包括如下步骤： 500、 UE1通过基站向 CN设备发送携带与 UE1同属一个群组的 UE2 标识的点呼话权申请；
例如 UE1具体可以通过基站向 CN设备发送携带 UE2标识的点呼话 权申请。 本实施例的方案中以 UE1和 UE2属于同一个群组为例来说明本 发明的技术方案， 实际应用中该 UE1和 UE2也可以不属于同一个群组。
501、 CN设备根据 UE2标识， 向群组调度系统发送携带 UE2标识和
UE1标识的话权申请；
502、 群组调度系统根据预设规则以及 UE1标识和 UE2标识， 确定不 授予 UE1的话权申请；
例如群组调度系统确定 UE2正在讲话， 便可以确定不授予 UE1话权 申请。 群组调度系统根据预设规则以及 UE1标识和 UE2标识， 确定不授 予 UE1的话权申请的过程，详细可以参考上述实施例的相关记载，在此不 再赘述。
本实施例中是以话权申请结果为不授予 UE1的话权申请为例介绍本 发明的技术方案。
503、 群组调度系统向 CN设备发送不授予 UE1话权申请的消息； 504、 CN设备根据不授予 UE1的话权申请结果， 与基站之间建立默 认承载和恢复没有删除的专用承载；
505、 基站与 UE1之间建立默认承载和恢复没有删除的专用承载； 通过步骤 502和 503CN设备、 基站与 UE1之间建立传输链路。
506、 CN设备向 UE1发送不授予 UE1话权申请的消息；
507、 UE1接收不授予 UE1话权申请的消息，挂断呼叫或者继续等待。 其中当不授予 UE1话权申请的消息中还携带有已经将 UE1排入呼叫 队列时， 此时 UE1可以选择继续等待， 否则 UE1直接挂断呼叫。
当本实施例中的话权申请结果为授予 UE1的话权申请时，处理情况可 以参考上述图 4所示实施例的相关情况， 在此不再赘述，
本实施例的数字集群系统中话权申请方法， 通过釆用上述技术方案， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求建立 信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携带群 组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而 能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于提高 呼叫建立效率。
图 6为本发明实施例提供的 UE的结构示意图。 如图 6所示， 本实施 例的 UE, 具体可以包括获取模块 10和发送模块 11。
其中获取模块 10用于获取被呼叫的群组标识或者第二 UE设备标识； 发送模块 11与获取模块 10连接， 发送模块 11用于通过基站向 CN设备 发送话权申请， 该话权申请为携带获取模块 10获取的群组标识的群组话 权申请或者为携带获取模块 10获取的第二 UE标识的点对, ^话权申请。
本实施例的 UE, 通过釆用上述模块， 实现数字集群系统中话权申请 与上述相关方法实施例的实现机制相同， 详细可以参考上述相关方法实施 例的记载， 在此不再赘述。
本实施例的 UE, 通过釆用上述模块实现数字集群系统中话权申请， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求建立 信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携带群 组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而 能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于提高 呼叫建立效率。
图 7为本发明另一实施例 UE的结构示意图。 如图 7所示， 本实施例 的 UE在上述图 6所示实施例的基础上， 还可以包括如下技术方案。
如图 7所示， 本实施例 UE ， 还包括计算模块 12和携带模块 13。 其 中计算模块 12与用于根据本地所存的完整性密钥、 本地计数器以及话权 申请的消息内容计算短 MAC; 携带模块 13与计算模块 12连接， 携带模 块 13用于在话权申请中携带计算模块 12计算的短 MAC。 发送模块 11与 携带模块 13连接，发送模块 11用于通过基站向 CN设备发送携带模块 13 处理后的话权申请， 即携带短 MAC的话权申请。
可选地， 本实施例的 UE中， 发送模块 11发送的话权申请是用以供
CN设备根据群组标识或者第二 UE标识， 从群组调度系统获取话权申请 结果。
可选地， 本实施例的 UE中还可以包括建立模块 14和接收模块 15。 其中建立模块 14用于通过基站与 CN设备建立传输链路； 其中传输链路 的建立是由 CN设备根据话权申请结果发起的。 接收模块 15与建立模块 14连接，接收模块 15用于接收 CN设备通过建立模块 14建立的传输链路 发送的话权申请结果， 该话权申请结果为 CN设备根据群组标识或者第二 UE标识， 从群组调度系统获取的。 该话权申请结果为授予话权或者不授 予话权。
可选地， 本实施例的 UE中， 话权申请结果包括授予话权申请或者不 授予话权申请。 且本实施例的 UE, 具体可以釆用上述图 2所示实施例的 后续扩展技术方案实现数字集群系统中话权申请。 详细可以参考上述图 2 所示实施例的后续扩展技术方案， 在此不再赘述。
本实施例的 UE, 通过釆用上述模块实现数字集群系统中话权申请， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求建立 信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携带群 组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而 能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于提高 呼叫建立效率。
图 8为本发明一实施例提供的 CN设备的结构示意图。 如图 8所示， 本实施例的 CN设备， 具体可以包括： 接收模块 20和获取模块 21。
其中接收模块 20用于接收第一 UE通过基站发送的话权申请，话权申 请为携带群组标识的群组话权申请或者为携带第二 UE标识的点对点话权 申请； 获取模块 21与接收模块 20连接， 获取模块 21用于根据接收模块 20接收的话权申请中的群组标识或者第二 UE标识，从群组调度系统获取 话权申请结果。
本实施例的 CN设备， 通过釆用上述模块， 实现数字集群系统中话权 申请与上述相关方法实施例的实现机制相同， 详细可以参考上述相关方法 实施例的记载， 在此不再赘述。
本实施例的 CN设备， 通过釆用上述模块实现数字集群系统中话权申 请， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求 建立信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携 带群组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于 提高呼叫建立效率。
图 9为本发明另一实施例提供的 CN设备的结构示意图。如图 9所示， 本实施例的 CN设备在上述图 8所示实施例的基础上， 进一步还可以包括 如下技术方案。
本实施例的 CN设备中还可以包括确定模块 22。 其中获取模块 21还 用于当话权申请中还携带有短 MAC时， 在接收模块 20接收第一 UE通过 基站发送的话权申请之后， 获取模块 21根据群组标识或者第二 UE标识， 从群组调度系统获取话权申请结果之前， 从话权申请中获取短 MAC, 短 MAC为第一 UE根据第一 UE本地的完整性密钥、 本地计数器以及第一 UE发送的话权申请的消息内容计算得到的。 确定模块 22与获取模块 21 连接， 确定模块 22用于根据获取模块 21获取的短 MAC, 确定话权申请 通过完整性验证。
进一步可选地， 其中确定模块 22具体可以包括计算单元 221和确定 单元 222。 其中计算单元 221与接收模块 20连接， 计算单元 221用于根据 CN本地的完整性密钥、本地计数器以及接收模块 20接收的接收的话权申 请的消息内容计算短 MAC； 确定单元 222分别与获取模块 21和计算单元 221连接，确定单元 222用于确定从获取模块 21从接收的话权申请中获取 的短 MAC与计算单元 221计算得到的短 MAC相同。 获取模块 21还用于 当确定单元 222确定从获取模块 21从接收的话权申请中获取的短 MAC与 计算单元 221计算得到的短 MAC相同之后， 根据话权申请中的群组标识 或者第二 UE标识， 从群组调度系统获取话权申请结果。
进一步可选地， 本实施例的 CN设备中还可以包括： 建立模块 23和 发送模块 24。
建立模块 23与获取模块 21连接， 建立模块 23用于根据获取模块 21 获取的话权申请结果， 通过基站与第一 UE建立传输链路。 发送模块 24 分别与获取模块 21和建立模块 23连接， 发送模块 24用于通过建立模块 23建立的传输链路向第一 UE发送获取模块 21获取的话权申请结果。
本实施例中话权申请结果包括授予话权申请或者不授予话权申请。 例 如建立模块 23具体用于当获取模块 21获取的话权申请结果为授予话权申 请时， 通过基站与第一 UE建立默认承载和恢复没有删除的专用承载， 同 时还要建立相应的语音专用承载， 以形成所述传输链路； 或者述建立模块 23具体用于当获取模块 21获取的话权申请结果为不授予话权申请时， 通 过基站与第一 UE建立默认承载和恢复没有删除的专用承载， 以形成所述 传输链路。
可选地， 本实施例的 UE中获取模块 21 , 具体还可以包括发送单元和 接收单元。 发送单元与接收模块 20连接， 发送单元用于向群组调度系统 发送携带接收模块 20接收的话权申请中的群组标识或者第二 UE标识、以 及第一 UE标识的话权申请； 接收单元用于接收群组调度系统发送的话权 申请结果； 话权申请结果为调度系统根据群组标识对应的群组的当前信息 或者第二 UE的当前信息， 以及预设规则确定的。 此时对应的建立模块 23 与接收单元连接， 建立模块 23用于根据接收单元接收的话权申请结果， 通过基站与第一 UE建立传输链路。发送模块 24与接收单元连接，发送模 块 24用于通过建立模块 23建立的传输链路向第一 UE发送接收单元接收 的话权申请结果。
且进一步可选地， 本实施例的 CN设备中， 具体还可以釆用上述图 3 所示实施例的后续扩展技术方案实现数字集群系统中话权申请。 详细可以 参考上述图 3所示实施例的后续扩展技术方案， 在此不再赘述。
本实施例的 CN设备， 通过釆用上述模块， 实现数字集群系统中话权 申请与上述相关方法实施例的实现机制相同， 详细可以参考上述相关方法 实施例的记载， 在此不再赘述。
本实施例的 CN设备， 通过釆用上述模块实现数字集群系统中话权申 请， 与现有技术中普通的点对点话权申请相比， 不用先通过发起服务请求 建立信令链接以及相应的承载， 然后通过信令来发起呼叫， 而直接发起携 带群组标识的群组话权申请或者为携带第二 UE标识的点对点话权申请， 从而能够有效地缩短基于 TD-LTE的数字集群系统中的时延， 从而有助于 提高呼叫建立效率。
图 10为本发明实施例提供的数字集群系统中发起话权申请的系统的 结构示意图。 如图 10所示， 本实施例的数字集群系统中话权申请系统包 括 UE30和 CN设备 40。
其中本实施例的 UE30具体可以釆用上述图 6或者图 7所示的 UE。 本实施例的 CN设备 40具体可以釆用上述图 8或者图 9所示实施例的 CN 设备， 且本实施例的数字集群系统中的状态调整系统中 UE30和 CN设备 40具体可以釆用上述图 2-图 5所示的数字集群系统中话权申请方法实现话 权申请， 详细可以参考上述相关实施例的记载， 在此不再赘述。
本实施例的数字集群系统中话权申请系统， 通过釆用上述 UE和 CN 设备实现数字集群系统中话权申请， 与现有技术中普通的点对点话权申请 相比， 不用先通过发起服务请求建立信令链接以及相应的承载， 然后通过 信令来发起呼叫， 而直接发起携带群组标识的群组话权申请或者为携带第 二 UE标识的点对点话权申请， 从而能够有效地缩短基于 TD-LTE的数字 集群系统中的时延， 从而有助于提高呼叫建立效率。
以上所描述的装置实施例仅仅是示意性的， 其中作为分离部件说明的 单元可以是或者也可以不是物理上分开的， 作为单元显示的部件可以是或 者也可以不是物理单元， 即可以位于一个地方， 或者也可以分布到至少两 个网络单元上。 可以根据实际的需要选择其中的部分或者全部模块来实现 本实施例方案的目的。 本领域普通技术人员在不付出创造性的劳动的情况 下， 即可以理解并实施。 最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修 改， 或者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不 使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种数字集群系统中话权申请的方法， 其特征在于， 包括： 第一用户设备获取被呼叫的群组标识或者第二用户设备标识； 所述第一用户设备通过基站向核心网设备发送话权申请， 所述话权申 请为携带所述群组标识的群组话权申请或者为携带所述第二用户设备标 识的点对点话权申请。
2、 根据权利要求 1所述的方法， 其特征在于， 所述第一用户设备通 过基站向核心网设备发送话权申请之前， 还包括：
所述第一用户设备根据本地所存的完整性密钥、 本地计数器以及所述 话权申请的消息内容计算短信息验证码；
所述第一用户设备在所述话权申请中携带所述短信息验证码。
3、 根据权利要求 1或 2所述的方法， 其特征在于， 所述第一用户设 备通过基站向核心网设备发送话权申请之后， 所述方法还包括：
所述第一用户设备通过所述基站与所述核心网设备建立传输链路； 所 述传输链路的建立是由所述核心网设备根据所述话权申请结果发起的； 所述第一用户设备接收所述核心网设备通过所述传输链路发送的话 权申请结果， 所述话权申请结果为所述核心网设备根据所述群组标识或者 所述第二用户设备标识， 从群组调度系统获取的。
4、 一种数字集群系统中话权申请的方法， 其特征在于， 包括： 核心网设备接收所述第一用户设备通过基站发送的话权申请， 所述第 一话权申请为携带群组标识的群组话权申请或者为携带第二用户设备标 识的点对点话权申请；
所述核心网设备根据所述群组标识或者所述第二用户设备标识， 从群 组调度系统获取话权申请结果。
5、 根据权利要求 4所述的方法， 其特征在于， 当所述话权申请中还 携带有短信息验证码时， 核心网设备接收所述第一用户设备通过基站发送 的话权申请之后， 所述核心网设备根据所述群组标识或者所述第二用户设 备标识， 从群组调度系统获取话权申请结果之前， 所述方法还包括： 所述核心网设备从接收的所述话权申请中获取所述短信息验证码， 所 述短信息验证码为所述第一用户设备根据所述第一用户设备本地的完整 性密钥、 本地计数器以及所述第一用户设备发送的所述话权申请的消息内 容计算得到的；
所述核心网设备确定所述话权申请通过完整性验证。
6、 根据权利要求 5所述的方法， 其特征在于， 所述核心网设备确定 所述话权申请通过完整性验证， 包括：
所述核心网设备根据所述核心网设备本地的完整性密钥、 本地计数器 以及所述核心网设备接收的所述话权申请的消息内容计算所述短信息验 证码；
所述核心网设备确定从接收的所述话权申请中获取的所述短信息验 证码与计算得到的所述短信息验证码相同。
7、 根据权利要求 4-6任一所述的方法， 其特征在于， 所述核心网设备 根据所述群组标识或者所述第二用户设备标识， 从群组调度系统获取话权 申请结果之后， 所述方法还包括：
所述核心网设备根据所述话权申请结果， 通过所述基站与所述第一用 户设备建立传输链路；
所述核心网设备通过所述传输链路向所述第一用户设备发送所述话 权申请结果。
8、 根据权利要求 7所述的方法， 其特征在于， 当所述话权申请结果 为授予话权申请时， 所述核心网设备根据所述话权申请结果， 通过所述基 站与所述第一用户设备建立传输链路， 包括： 所述核心网设备通过所述基 站与所述第一用户设备建立默认承载和恢复没有删除的专用承载， 同时还 要建立相应的语音专用承载， 以形成所述传输链路；
当所述话权申请结果为不授予话权申请时， 所述核心网设备根据所述 话权申请结果， 通过所述基站与所述第一用户设备建立传输链路， 包括： 所述核心网设备通过所述基站与所述第一用户设备建立默认承载和恢复 没有删除的专用承载， 以形成所述传输链路。
9、 一种用户设备， 其特征在于， 包括：
获取模块， 用于获取被呼叫的群组标识或者第二用户设备标识； 发送模块， 用于通过基站向核心网设备发送话权申请， 所述话权申请 为携带所述群组标识的群组话权申请或者为携带所述第二用户设备标识 的点对点话权申请。
10、 根据权利要求 9所述的用户设备， 其特征在于， 还包括： 计算模块， 用于在所述发送模块通过所述基站向所述核心网设备发送 所述话权申请之前， 根据本地所存的完整性密钥、 本地计数器以及所述话 权申请的消息内容计算短信息验证码；
携带模块， 用于在所述话权申请中携带所述短信息验证码。
11、 根据权利要求 9或 10所述的用户设备， 其特征在于， 还包括： 建立模块， 用于通过所述基站与所述核心网设备建立传输链路； 所述 传输链路的建立是由所述核心网设备根据所述话权申请结果发起的；
接收模块， 用于接收所述核心网设备通过所述传输链路发送的话权申 请结果， 所述话权申请结果为所述核心网设备根据所述群组标识或者所述 第二用户设备标识， 从群组调度系统获取的。
12、 一种核心网设备， 其特征在于， 包括：
接收模块， 用于接收所述第一用户设备通过基站发送的话权申请， 所 述第一话权申请为携带群组标识的群组话权申请或者为携带第二用户设 备标识的点对点话权申请；
获取模块， 用于根据所述群组标识或者所述第二用户设备标识， 从群 组调度系统获取话权申请结果。
13、 根据权利要求 12所述的设备， 其特征在于， 所述设备还包括确 定模块；
所述获取模块， 还用于当所述话权申请中还携带有短信息验证码时， 在所述接收模块接收所述第一用户设备通过所述基站发送的所述话权申 请之后， 所述获取模块根据所述群组标识或者所述第二用户设备标识， 从 所述群组调度系统获取所述话权申请结果之前， 从所述话权申请中获取所 述短信息验证码， 所述短信息验证码为所述第一用户设备根据所述第一用 户设备本地的完整性密钥、 本地计数器以及所述第一用户设备发送的所述 话权申请的消息内容计算得到的；
所述确定模块， 用于确定所述话权申请通过完整性验证。
14、 根据权利要求 13所述的设备， 其特征在于， 所述确定模块， 包 括： 计算单元， 用于根据所述核心网设备本地的完整性密钥、 本地计数器 以及所述核心网设备接收的所述话权申请的消息内容计算所述短信息验 证码；
确定单元， 用于确定所述获取模块从接收的所述话权申请中获取的所 述短信息验证码与计算得到的所述短信息验证码相同。
15、 根据权利要求 12-14任一所述的设备， 其特征在于， 还包括： 建立模块， 用于在所述获取模块从所述群组调度系统获取话权申请结 果之后， 根据所述话权申请结果， 通过所述基站与所述第一用户设备建立 传输链路；
发送模块， 用于通过所述传输链路向所述第一用户设备发送所述话权 申请结果。
16、 根据权利要求 15所述的设备， 其特征在于：
所述建立模块， 具体用于当所述话权申请结果为授予话权申请时， 通 过所述基站与所述第一用户设备建立默认承载和恢复没有删除的专用承 载， 同时还要建立相应的语音专用承载， 以形成所述传输链路；
或者所述建立模块， 具体用于当所述话权申请结果为不授予话权申请 时， 通过所述基站与所述第一用户设备建立默认承载和恢复没有删除的专 用承载， 以形成所述传输链路。
17、 一种数字集群系统中话权申请的系统， 其特征在于， 包括上述权 利要求 9-11任一所述的用户设备和上述权利要求 12-16任一所述的核心网 设备。
PCT/CN2012/085101 2012-03-16 2012-11-23 数字集群系统中话权申请的方法及系统、设备 WO2013135068A1 (zh)

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