WO2015188497A1 - 基于lte的集群通信系统重建恢复方法和用户终端 - Google Patents

基于lte的集群通信系统重建恢复方法和用户终端 Download PDF

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Publication number
WO2015188497A1
WO2015188497A1 PCT/CN2014/086871 CN2014086871W WO2015188497A1 WO 2015188497 A1 WO2015188497 A1 WO 2015188497A1 CN 2014086871 W CN2014086871 W CN 2014086871W WO 2015188497 A1 WO2015188497 A1 WO 2015188497A1
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Prior art keywords
user terminal
cluster
configuration information
service
resource configuration
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PCT/CN2014/086871
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English (en)
French (fr)
Inventor
李波
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中兴通讯股份有限公司
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Priority to US15/317,453 priority Critical patent/US10149342B2/en
Priority to EP14894276.6A priority patent/EP3157289B1/en
Publication of WO2015188497A1 publication Critical patent/WO2015188497A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0009—Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • 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
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a LTE-based cluster communication system reconstruction and recovery method and a user terminal.
  • trunking communication systems for example, LTE (Long Term Evolution)-based trunking communication systems
  • LTE Long Term Evolution
  • trunking communication systems have a wide application market in the fields of government departments, public safety, emergency telecommunications, electric power, civil aviation, petrochemicals, and military. Therefore, in order to adapt to the application requirements of such a trunking communication system, a system in which a common service and a cluster service are concurrently generated (for example, a system in which an ordinary service based on LTE is concurrent with a cluster service) appears.
  • the communication between the user terminals is RRC (Radio).
  • Resource Control radio resource control protocol
  • cluster service is a half-duplex two-way service, the cluster user terminal is established to belong to a certain group of user terminals in a given area, during the communication process, any member of the group can become a speaker, but only one speaker is allowed at any time, that is, the calling cluster user terminal, the other is the listener, that is, the called cluster user terminal, the calling cluster user terminal has an RRC link, and the called cluster user terminal does not have The RRC link;
  • the concurrent services in the trunking communication system supporting the common service and the cluster service concurrently include: 1.
  • the cluster business is the same as the ordinary business, and the wireless environment used is relatively complex.
  • various abnormal conditions are encountered, such as a radio link abnormality, and the handover process of the serving cell where the user terminal is located to the target cell cannot be synchronized to the target cell, etc., at this time, re-in the user terminal.
  • the serving cell and its neighboring cell select a target cell to initiate an RRC re-establishment process to restore the service.
  • the trunking communication system of the LTE-based common service and the cluster service is abnormal, how to recover the subsequent cluster listening user service must be found. A solution to solve.
  • the main purpose of the present invention is to solve the problem of how to recover the user service of the subsequent cluster when the LTE-based trunking communication system is rebuilt abnormally.
  • an embodiment of the present invention provides a LTE-based cluster communication system reconstruction and recovery method, where the LTE-based cluster communication system reconstruction recovery method includes:
  • the user terminal monitors the first resource configuration information of the serving cell where the user terminal is located and the second resource configuration information of the neighboring cell, and configures the user terminal according to the first resource configuration information, so that the user terminal serves as the cluster listening user. Accessing, and saving the second resource configuration information;
  • the user terminal establishes an RRC link and a service bearer with the network side, and the user terminal serves as a cluster to say that the user and the normal service user access;
  • the user terminal When the user terminal detects that the wireless link is abnormal, the user terminal selects one of the serving cell and the neighboring cell of the user terminal as the target cell, and the user terminal sends a reconstruction request to the target cell, where the target cell is receiving.
  • the re-establishment request When the re-establishment request is reached, the re-establishment process is initiated according to the re-establishment request to restore the normal service or the common service and the cluster-speaking user service, and the cluster listening user service is restored according to the second resource configuration information.
  • the user terminal monitors the first resource configuration information of the serving cell where the user terminal is located and the second resource configuration information of the neighboring cell, and configures the user terminal according to the first resource configuration information, for the user.
  • the step of the terminal accessing the user as a cluster and saving the second resource configuration information includes:
  • the user terminal reads a system information block that is sent by the network side and collects paging paging configuration information, and configures a physical layer of the user terminal by using the system information block;
  • the user terminal monitors the cluster paging channel to obtain a cluster paging that is sent by the network side, including the trunk service radio network temporary authentication information TRNTI, and configures the physical layer of the user terminal by using the TRNTI;
  • the user terminal performs blind detection by using the TRNTI, and listens to the cluster group control channel to obtain the first resource configuration information and the second resource configuration information that are sent by the network side;
  • a physical layer PHY entity a media access control layer MAC entity, a radio link control protocol (RLC entity), a packet data convergence protocol (PDCP entity), and storing the second resource configuration information to the user terminal Storage unit.
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the user terminal when the user terminal detects that an abnormality occurs in the radio link, the user terminal selects one of the serving cell and the neighboring cell of the user terminal as the target cell, and the user terminal sends a reestablishment request to the target cell to provide a reconfiguration request.
  • the target cell receives the reestablishment request, the step of resuming the re-establishment process according to the re-establishment request to restore the normal service or the common service and the cluster said user service, and recovering the cluster listening user service according to the second resource configuration information includes:
  • the user terminal When the user terminal detects that the wireless link is out of synchronization through the physical layer, the user terminal sends a control command to the physical layer PHY entity through the RRC layer to perform a frequency sweep operation to obtain all possible frequency points in the frequency band applicable to the user terminal, and according to the signal. Intensity aligns the frequency points in descending order, starts from the frequency point with the strongest signal strength, and determines a target cell that initiates the re-establishment process;
  • the cluster listening user service maintains the current configuration work, and the user terminal sends a reconstruction request to the target cell, when the target cell receives the reconstruction request, Initiating a re-establishment process according to the re-establishment request to resume normal service or normal service and cluster said user service;
  • the user terminal When the determined target cell is a neighboring cell of the serving cell where the user terminal is located, the user terminal sends a reestablishment request to the target cell, so that the target cell initiates a re-establishment process to resume the normal service when receiving the reestablishment request.
  • the normal service and the cluster say the user service, and restore the cluster listening user service according to the second resource configuration information in the reestablishment request.
  • the user terminal sends a reestablishment request to the target cell, so that the target cell initiates a heavy request when receiving the reestablishment request.
  • the steps of the process of restoring the normal service or the common service and the cluster said user service, and recovering the network listening user service according to the second resource configuration information in the reestablishment request include:
  • the user terminal When the determined target cell is a neighboring cell of the serving cell where the user terminal is located, if the user terminal stores the second resource configuration information of the neighboring cell, the user terminal sends a reconstruction request to the target cell for The target cell initiates a re-establishment process to restore the normal service or the normal service and the cluster said user service, and configures the physical layer PHY entity and the media access control layer MAC entity of the user terminal according to the second resource configuration information. a radio link control protocol RLC entity and a packet data convergence protocol PDCP entity to recover the cluster listening user service;
  • the user terminal When the determined target cell is a neighboring cell of the serving cell where the user terminal is located, if the second resource configuration information of the neighboring cell is not stored in the user terminal, the user terminal sends a reconstruction request to the target cell for When receiving the reestablishment request, the target cell initiates a re-establishment process to restore the normal service or the common service and the cluster said user service, and re-accesses as a cluster listening user.
  • the determined target cell is a neighboring cell of the serving cell where the user terminal is located, for example, the second resource configuration information of the neighboring cell is not stored in the user terminal, and the user terminal sends a reconstruction to the target cell.
  • the LTE-based trunking communication system The reconstruction recovery method also includes:
  • the user terminal monitors the cluster paging channel to obtain a cluster paging that is sent by the network side, including the trunk service radio network temporary authentication information TRNTI, and configures the physical layer of the user terminal by using the TRNTI;
  • the user terminal performs the blind detection by using the TRNTI, and monitors the cluster group control channel to obtain the third resource configuration information of the target cell and the fourth resource configuration information of the neighboring cell of the target cell that are sent by the network side;
  • a physical layer PHY entity configuring, according to the third resource configuration information, a physical layer PHY entity, a media access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal, so that the user terminal is re-used as a cluster listening user.
  • a physical layer PHY entity a physical layer PHY entity, a media access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal, so that the user terminal is re-used as a cluster listening user.
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • an embodiment of the present invention further provides a user terminal, where the user terminal includes:
  • the monitoring processing module is configured to: monitor the first resource configuration information of the serving cell where the user terminal is delivered by the network side, and the second resource configuration information of the neighboring cell, and configure the user terminal according to the first resource configuration information, for the user terminal Listening to the user as a cluster, and saving the second resource configuration information;
  • Establishing a module which is set up to establish an RRC link and a service bearer with the network side, so that the user terminal serves as a cluster to say that the user and the normal service user access;
  • Re-establishing a module configured to: when detecting that an abnormality occurs in the radio link, selecting one of the serving cell and the neighboring cell where the user terminal is located as the target cell, and sending a reestablishment request to the target cell, where the target cell is receiving
  • the re-establishment process is initiated according to the re-establishment request to restore the normal service or the common service and the cluster-speaking user service, and the cluster listening user service is restored according to the second resource configuration information.
  • the listening processing module is configured to:
  • a physical layer PHY entity a media access control layer MAC entity, a radio link control protocol (RLC entity), a packet data convergence protocol (PDCP entity), and storing the second resource configuration information to the user terminal Storage unit.
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the re-establishment module is configured to:
  • the RRC layer sends a control command to perform a frequency sweep operation on the physical layer PHY entity, and obtains all possible frequency points in the frequency band applicable to the user terminal, and according to the signal strength, The frequency points are arranged in descending order, and the query is started from the frequency point with the strongest signal strength, and the target cell that initiates the re-establishment process is determined;
  • the cluster listening user service maintains the current configuration work, and sends a reconstruction request to the target cell, so that the target cell initiates the re-establishment request according to the re-establishment request.
  • the re-establishment process restores normal business or general business and clusters say user services;
  • the cluster refers to the user service, and restores the cluster listening user service according to the second resource configuration information.
  • the re-establishment module is further configured to:
  • the reestablishment process is initiated to restore the normal service or the common service and the cluster said user service, and the physical layer PHY entity, the media access control layer MAC entity, and the radio link control protocol of the user terminal are configured according to the second resource configuration information.
  • the re-establishment process is initiated to restore the normal service or the common service and the cluster said user service, and re-access as the cluster listening user.
  • the re-establishment module is further configured to:
  • a physical layer PHY entity configuring, according to the third resource configuration information, a physical layer PHY entity, a media access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal, so that the user terminal is re-used as a cluster listening user.
  • a physical layer PHY entity a physical layer PHY entity, a media access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal, so that the user terminal is re-used as a cluster listening user.
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the user equipment receives the first resource configuration information of the serving cell where the user terminal is delivered by the network side and the second resource configuration information of the neighboring cell of the serving cell, and configures the user terminal by using the first resource configuration information, And saving the second resource configuration information; when an abnormality occurs in the LTE-based trunking communication system in which the normal service and the cluster service run concurrently, the serving cell serves as a target cell, and the cluster listens to the user service to maintain the current configuration work, and the target cell Initiating the re-establishment process, the normal service or the common service of the LTE-based trunking communication system and the cluster-speaking user service can be restored; the neighboring cell of the serving cell initiates the re-establishment process as the target cell to restore the normal service or the common service and the cluster.
  • the user service is said to restore the cluster listening user service through the second resource configuration information saved by the user terminal, thereby realizing the recovery of the LTE-based trunking communication system.
  • FIG. 1 is a schematic flowchart of a first embodiment of a method for reconstructing and restoring a LTE-based trunking communication system according to the present invention
  • FIG. 2 is a detailed flowchart of the step of configuring a user terminal according to the first resource configuration information, in which the user terminal monitors the first resource configuration information and the second resource configuration information;
  • FIG. 3 is a detailed flowchart of the steps of selecting a target cell and transmitting a reconstruction request to the target cell when an abnormality occurs in the radio link is detected in FIG. 1;
  • FIG. 4 is a detailed flowchart of steps for restoring normal services and cluster services when the determined target cell is a neighboring cell of a serving cell in which the user terminal is located in FIG. 3;
  • FIG. 5 is a schematic flowchart of a second embodiment of a method for reconstructing and restoring a LTE-based trunking communication system according to the present invention
  • FIG. 6 is a schematic diagram of functional modules of a first embodiment of a user terminal according to the present invention.
  • FIG. 1 is a schematic flowchart diagram of a first embodiment of a method for reconstructing and restoring a LTE-based trunking communication system according to the present invention.
  • the LTE-based trunking communication system reconstruction and recovery method includes:
  • step S10 the user equipment monitors the first resource configuration information of the serving cell where the user terminal is located and the second resource configuration information of the neighboring cell, and configures the user terminal according to the first resource configuration information, so that the user terminal serves as the user terminal.
  • the cluster listens to the user access and saves the second resource configuration information.
  • the user equipment monitors the first resource configuration information of the serving cell where the user terminal is delivered by the network side and the second resource configuration information of the neighboring cell, and configures the user terminal by using the first resource configuration information, so that the user terminal is used as the cluster listening user.
  • the second resource configuration information is saved and saved, so that when the LTE-based trunking communication system is abnormal, when the neighboring cell initiates the re-establishment process, the second resource configuration information is used to restore the cluster listening user service.
  • Step S20 The user terminal establishes an RRC link and a service bearer with the network side, and the user terminal accesses the user as a cluster and the normal service user;
  • the user terminal establishes an RRC link and a service bearer with the network side, and the user terminal serves as a cluster to say that the user and the normal service user access, and the user terminal serves as a cluster to say that the user and the normal service user access, and the user terminal serves as a cluster listening user. There is no order; because the cluster listens to the user using the public bearer, and the cluster listens to the user does not need to establish an RRC link.
  • Step S30 When the user terminal detects that the wireless link is abnormal, the user terminal selects one of the serving cell and the neighboring cell of the user terminal as the target cell, and the user terminal sends a reconstruction request to the target cell for the target.
  • the cell When receiving the reestablishment request, the cell initiates a re-establishment process to restore the normal service or the common service and the cluster said user service according to the re-establishment request, and restores the cluster listening user service according to the second resource configuration information.
  • the user terminal determines one of the serving cell and the neighboring cell as the target cell, and when the determined target cell is the serving cell, initiates a re-establishment process in the serving cell.
  • the normal service and the cluster service of the LTE-based trunking communication system can be restored; when the determined target cell is a neighboring cell, the neighboring cell initiates a re-establishment process to restore the normal service or the common service and the cluster said the user service, and then
  • the second resource configuration information saved by the user terminal restores the cluster listening user service, thereby implementing recovery of the LTE-based trunking communication system.
  • the user equipment receives the first resource configuration information of the serving cell where the user terminal is delivered by the network side, and the second resource configuration information of the neighboring cell of the serving cell, and configures the user terminal by using the first resource configuration information. And saving the second resource configuration information; when the common service and the cluster service run concurrently When an abnormality occurs in the trunking communication system of the LTE, the serving cell serves as a target cell, and the cluster listens to the user service to maintain the current configuration work, and the target cell initiates a re-establishment process, thereby recovering the common service or the common service of the LTE-based trunking communication system.
  • the cluster said the user service the neighboring cell of the serving cell initiates the re-establishment process as the target cell to restore the normal service or the common service and the cluster said user service, and then restores the cluster listening user service by using the second resource configuration information saved by the user terminal.
  • FIG. 2 is a detailed flowchart of the step of configuring the user terminal according to the first resource configuration information, in which the user terminal monitors the first resource configuration information and the second resource configuration information.
  • step S10 includes:
  • Step S101 The user terminal reads a system information block that is sent by the network side and collects paging paging configuration information, and configures a physical layer of the user terminal by using the system information block.
  • the user terminal reads the system information block, and uses the collection cluster paging configuration information in the system information block to configure the physical layer of the user terminal, so that the user terminal can easily collect the cluster paging, for example, collecting the cluster paging configuration information as the cluster paging transmission channel.
  • the user terminal can detect the cluster paging according to the TPCH resource parameter of the cluster, so that the detection of the cluster paging is convenient, fast, and accurate.
  • Step S102 The user terminal monitors the cluster paging channel to obtain a cluster paging that is sent by the network side, including the trunk service radio network temporary authentication information TRNTI, and configures the physical layer of the user terminal by using the TRNTI.
  • TRNTI trunk service radio network temporary authentication information
  • the cluster paging message carries the TRNTI of the cluster service radio network temporary authentication information necessary for receiving the cluster configuration information, and on the other hand, the radio network temporary authentication information RTNI for distinguishing the common service,
  • the user terminal may perform a blind detection operation according to the TRNTI to monitor the first resource configuration information of the serving cell where the user terminal is located and the second resource configuration information of the neighboring cell.
  • Step S103 The user terminal performs blind detection by using the TRNTI, and listens to the cluster group control channel to obtain the first resource configuration information and the second resource configuration information that are sent by the network side.
  • Step S104 configuring a physical layer PHY entity, a medium access control layer MAC entity, a radio link control protocol RLC entity, a packet data convergence protocol PDCP entity of the user terminal according to the first resource configuration information, and storing the second resource configuration information To the storage unit of the user terminal.
  • the user terminal configures the user terminal as a cluster listening user by configuring the physical layer PHY entity, the media access control layer MAC entity, the radio link control protocol (RLC entity), and the packet data convergence protocol (PDCP entity) of the user terminal by using the first resource configuration information. Storing the second resource configuration information to the storage unit of the user terminal, when the target cell is the neighboring cell of the serving cell where the user terminal is located, when the LTE-based cluster communication system is abnormal, as the cluster listening user service Basis for recovery.
  • the physical layer PHY entity the media access control layer MAC entity
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the user terminal can easily collect the cluster paging, and then use the TRNTI information in the cluster paging to configure the physical layer of the user equipment.
  • the use of the TRNTI for the blind detection facilitates the quick monitoring of the first resource configuration information of the cluster group control channel and the second resource configuration information, and uses the first resource configuration information to configure the physical layer PHY entity of the user terminal, the media access control layer MAC entity,
  • the radio link control protocol RLC entity and the packet data convergence protocol PDCP entity are provided for the user terminal to access as a cluster listening user.
  • FIG. 3 is a detailed flowchart of the steps of selecting a target cell and sending a reconstruction request to the target cell when an abnormality occurs in the radio link is detected in FIG.
  • step S30 includes:
  • Step S301 when the user terminal detects that the radio link is out of synchronization through the physical layer, the user terminal sends a control command to the physical layer PHY entity to perform all the frequency points in the frequency band applicable to the user terminal. And arranging the frequency points in descending order according to signal strength, starting from a frequency point with the strongest signal strength, and determining a target cell that initiates the re-establishment process;
  • the frequency sweeping operation acquires all the frequency points in the frequency band applicable to the user terminal, and performs the descending order according to the signal strength of the frequency point, starting from the frequency with the strongest signal strength.
  • the query determines the target cell that initiates the re-establishment process, selects the target cell in this manner, and improves the success rate of the determined target cell to initiate the re-establishment process.
  • Step S302 determining whether the target cell is a serving cell where the user terminal is located;
  • Step S303 when the determined target cell is the serving cell where the user terminal is located, the cluster listening user service of the user terminal maintains the current configuration work, and sends a reconstruction request to the target cell, where the target cell receives the
  • the re-establishment process is initiated according to the re-establishment request to restore the normal service or the common service and the cluster to say the user service;
  • the determined target cell is the serving cell where the user terminal is located.
  • the user terminal After the target cell initiates the re-establishment process, the user terminal has configured the physical layer PHY entity of the user terminal and the media access control by using the first configuration information.
  • the layer MAC entity, the radio link control protocol RLC entity, and the packet data convergence protocol PDCP entity initiate a re-establishment process in the target cell, and the re-establishment process can restore the normal service or the common service and the cluster said user service.
  • Step S304 when the determined target cell is a neighboring cell of the serving cell where the user terminal is located, the user terminal sends a reestablishment request to the target cell, so that the target cell initiates a re-establishment process when receiving the reestablishment request.
  • the normal service or the normal service and the cluster are said to be user services, and the cluster listening user service is restored according to the second resource configuration information in the reestablishment request.
  • the determined target cell is a neighboring cell where the user terminal is located, and the neighboring cell initiates a re-establishment process to restore the normal service or the common service and the cluster said user service, and then restores the cluster by using the second resource configuration information saved by the user terminal.
  • the user service avoids the abnormality of the LTE-based trunking communication system, and each time it needs to be re-accessed as a cluster listening user.
  • the user terminal in this embodiment detects a radio link abnormality through the physical layer, performs a frequency sweep operation through the physical layer PHY entity, acquires all possible frequency points in the frequency band applicable to the user terminal, and performs the frequency point according to the signal strength. Sorting in descending order, starting from the frequency point with the strongest signal strength, determining the target cell that initiates the re-establishment process, determining the target cell as the cell that most satisfies the re-establishment requirement; determining whether the target cell is the serving cell where the user terminal is located, and if so, Then, the re-establishment process only needs to be initiated to restore the normal service or the common service and the cluster to say the user service.
  • the re-establishment process is initiated to restore the normal service or the common service and the cluster said the user service, and the cluster is restored according to the second resource configuration information.
  • the user service does not need to be re-operated as a cluster to listen to the user, so that the recovery process of the LTE-based trunking communication system is simple.
  • FIG. 4 is a detailed flowchart of steps for restoring normal services and cluster services when the determined target cell is a neighboring cell of a serving cell where the user terminal is located in FIG.
  • step S304 includes:
  • Step S3041 Whether the user terminal stores the second resource configuration information of the neighboring cell that is the target cell;
  • Step S3042 When the determined target cell is a neighboring cell of the serving cell where the user terminal is located, if the user terminal stores the second resource configuration information of the neighboring cell, the user terminal sends a reestablishment request to the target cell. And the physical layer PHY entity and the media access control layer of the user terminal are configured according to the second resource configuration information, when the target cell initiates a re-establishment request to initiate a re-establishment process to restore a normal service or a common service and a cluster said user service. a MAC entity, a radio link control protocol RLC entity, and a packet data convergence protocol PDCP entity to recover the cluster listening user service;
  • the determined target cell is a neighboring cell where the user terminal is located, and the second resource configuration information of the neighboring cell is stored in the user terminal, and the normal service or the common service and the cluster said user can be restored when the neighboring cell initiates the re-establishment process.
  • the service reconfigures the physical layer PHY entity, the medium access control layer MAC entity, the radio link control protocol (RLC entity), and the packet data convergence protocol (PDCP entity) of the user terminal by using the second resource configuration information saved by the user terminal, and restores the cluster listening user service.
  • Step S3043 When the determined target cell is a neighboring cell of the serving cell where the user terminal is located, if the user terminal does not store the second resource configuration information of the neighboring cell, the user terminal sends a reestablishment request to the target cell. And the target cell initiates a re-establishment process to restore the normal service or the common service and the cluster said user service when receiving the re-establishment request, and re-accesses as the cluster listening user.
  • the determined target cell is a neighboring cell where the user terminal is located, and the second resource configuration information of the neighboring cell is not stored in the user terminal, and the normal service or the common service and the cluster can be restored when the neighboring cell initiates the re-establishment process.
  • User service the user terminal re-accesses as a cluster listening user in the neighboring cell, and restores the cluster listening user service.
  • the target cell determined by the embodiment is a neighboring cell where the user terminal is located, where the user terminal stores the second resource configuration information of the neighboring cell, and the neighboring cell initiates the re-establishment process to restore the normal service or the common service.
  • the cluster refers to the user service, and then uses the second resource configuration information saved by the user terminal to configure the physical layer PHY entity of the user terminal, the media access control layer MAC entity, the radio link control protocol RLC entity, the packet data convergence protocol PDCP entity, and the recovery cluster listening.
  • the user service needs to be re-accessed to the cluster to listen to the user to recover the user service.
  • Re-access as a cluster listening user to restore the cluster listening to user services.
  • FIG. 5 is a schematic flowchart diagram of a second embodiment of a method for reconstructing and restoring a LTE-based trunking communication system according to the present invention.
  • the steps of the LTE-based trunking communication system reestablishment recovery method are substantially the same as the steps of the first embodiment, except that after the step S3043, the LTE-based trunking communication system is restored and restored.
  • the method also includes:
  • Step S3044 The user terminal monitors the cluster paging channel to obtain a cluster paging that is sent by the network side, including the trunk service radio network temporary authentication information TRNTI, and configures the physical layer of the user terminal by using the TRNTI;
  • the cluster paging message carries the TRNTI of the cluster service radio network temporary authentication information necessary for receiving the cluster configuration information, and on the other hand, the radio network temporary authentication information RTNI for distinguishing the common service,
  • the user terminal may perform a blind detection operation according to the TRNTI to monitor the third resource configuration information of the current target cell that obtains the re-establishment process of the user terminal, and the neighboring cell. Fourth resource configuration information.
  • Step S3045 The user terminal performs the blind detection by using the TRNTI, and monitors the cluster group control channel to obtain the third resource configuration information of the target cell and the fourth resource configuration of the neighboring cell of the target cell. information;
  • Step S3046 configuring a physical layer PHY entity, a medium access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal according to the third resource configuration information, so that the user terminal is re-used as a cluster. Listening to user access and storing fourth resource configuration information to a storage unit of the user terminal.
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the user terminal After the user terminal configures the physical layer PHY entity, the medium access control layer MAC entity, the radio link control protocol (RLC entity), and the packet data convergence protocol (PDCP entity) of the user terminal by using the third resource configuration information, the user terminal is re-used as the cluster listening user.
  • the physical layer PHY entity the medium access control layer MAC entity, the radio link control protocol (RLC entity), and the packet data convergence protocol (PDCP entity) of the user terminal by using the third resource configuration information
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the storage unit of the user terminal does not store the second resource configuration information of the neighboring cell that is the target cell that initiates the re-establishment process
  • the user re-acquires the cluster paging in the target cell, and re-acquires the target cell.
  • the three resource configuration information and the fourth resource configuration information of the neighboring cell are combined with the above situation to ensure that the LTE-based trunking communication system of the present invention can be restored anyway, and at the same time, the target cell and the phase are saved again.
  • the fourth resource configuration information of the neighboring cell provides a basis for the recovery of the abnormal cluster listening user service in the LTE-based trunking communication system.
  • the invention further provides a user terminal.
  • FIG. 6 is a schematic diagram of functional modules of a first embodiment of a user terminal according to the present invention.
  • the user terminal includes:
  • the monitoring processing module 21 is configured to monitor the first resource configuration information of the serving cell where the user terminal is located and the second resource configuration information of the neighboring cell, and configure the user terminal according to the first resource configuration information, for the user The terminal accesses the user as a cluster, and saves the second resource configuration information.
  • the establishing module 22 is configured to establish an RRC link and a service bearer with the network side, where the user terminal is used as a cluster to say that the user and the normal service user access;
  • the re-establishment module 23 is configured to: when detecting that an abnormality occurs in the radio link, select one of the serving cell and the neighboring cell where the user terminal is located as the target cell, and send a reconstruction request to the target cell, where the target cell is Upon receiving the re-establishment request, the re-establishment process is initiated according to the re-establishment request to restore the normal service or the common service and the cluster-speaking user service, and the cluster listening user service is restored according to the second resource configuration information.
  • the monitoring processing module 21 of the user terminal monitors the first resource configuration information of the serving cell where the user terminal is delivered by the network side and the second resource configuration information of the neighboring cell, and the monitoring processing module 21 configures the user terminal by using the first resource configuration information. Therefore, the user terminal is used as a cluster listening user to access the second resource configuration information, so that when the LTE-based cluster communication system is abnormal, when the neighboring cell initiates the re-establishment process, the second resource configuration information is used to restore the cluster listening user service. .
  • the establishment module 22 of the user terminal establishes an RRC link and a service bearer with the network side, and the user terminal serves as a cluster to say that the user and the normal service user access, and the user terminal acts as a cluster to say that the user and the normal service user access, and the user terminal serves as a cluster.
  • the re-establishment module 23 of the user terminal determines one of the serving cell and the neighboring cell as the target cell, and when the determined target cell is the serving cell, the cluster listens to the user service.
  • the re-establishment module 23 initiates a re-establishment process in the serving cell, and can resume the normal service or the common service of the LTE-based trunking communication system and the cluster said user service; when the determined target cell is a neighboring cell, The establishing module 23 restores the normal service or the common service and the cluster said user service in the neighboring cell, and restores the cluster listening user service by using the second resource configuration information saved by the user terminal, thereby implementing the LTE-based trunking communication system. Recovery.
  • the monitoring processing module 21 of the user terminal receives the first resource configuration information of the serving cell where the user terminal is delivered by the network side, and the second resource configuration information of the neighboring cell of the serving cell, and the monitoring processing module 21 The user equipment is configured to use the first resource configuration information, and the second resource configuration information is saved.
  • the re-establishment module 23 initiates a reconstruction request for After receiving the reestablishment request, the target cell initiates a re-establishment process; if the serving cell is the target cell, the cluster listening user service maintains the current configuration work, and the target cell initiates a re-establishment process, thereby recovering the common service of the LTE-based trunking communication system or common
  • the service and the cluster say the user service; if the neighboring cell of the serving cell is the target cell, the re-establishment process is initiated to restore the normal service or the common service and the cluster said the user service, and then the second resource configuration information saved by the user terminal is used to restore the cluster listening user.
  • Business thus implementing LTE-based cluster communication system Recovery.
  • the listening processing module 21 is configured to:
  • the monitoring processing module configures a physical layer PHY entity, a medium access control layer MAC entity, a radio link control protocol RLC entity, a packet data convergence protocol PDCP entity of the user terminal according to the first resource configuration information, and stores the second resource configuration information. To the storage unit of the user terminal.
  • the monitoring processing module 21 of the user terminal reads the system information block, and configures the physical layer of the user terminal by using the collected cluster paging configuration information in the system information block, so that the user terminal can easily collect the cluster paging, for example, collecting the cluster paging configuration information as The cluster paging transmission channel TPCH resource content, after configuring the physical layer of the user terminal by using the TPCH resource content, the user terminal can detect the cluster paging according to the TPCH resource parameter of the cluster, so that the detection of the cluster paging is convenient, fast, and accurate.
  • the cluster paging message carries the cluster service radio network temporary authentication information TRNTI necessary for receiving the cluster configuration information.
  • the intercept processing module 21 uses the TRNTI to distinguish the wireless network temporary authentication information RTNI of the common service, and on the other hand, the interception processing.
  • the user terminal may perform a blind detection operation according to the TRNTI to monitor the first resource configuration information of the serving cell where the user terminal is located and the second resource configuration information of the neighboring cell.
  • the monitoring processing module 21 of the user terminal implements the user terminal by configuring the physical layer PHY entity, the medium access control layer MAC entity, the radio link control protocol RLC entity, and the packet data convergence protocol PDCP entity of the user terminal by using the first resource configuration information.
  • the cluster listens to the user access; stores the second resource configuration information in the storage unit of the user terminal, and is set to be when the target cell is the neighboring cell of the serving cell where the user terminal is located when the LTE-based trunking communication system is abnormal. The basis for the recovery of the cluster listening to user services.
  • the listening processing module 21 of the user terminal of the present embodiment can easily collect the cluster paging by reading the system information block sent by the network side and configuring the physical layer by using the system information block, and the monitoring processing module 21 reuses the TRNTI in the cluster paging. After the information is configured on the physical layer of the user equipment, the monitoring processing module 21 performs the blind detection by using the TRNTI to quickly monitor the first resource configuration information of the cluster group control channel and the second resource configuration information, and the monitoring processing module
  • the physical layer PHY entity, the medium access control layer MAC entity, the radio link control protocol (RLC entity), and the packet data convergence protocol (PDCP entity) of the user terminal are configured by using the first resource configuration information, and the user terminal is used as a cluster listening user.
  • the re-establishment module 23 is configured to:
  • the RRC layer sends a control command to the physical layer PHY entity to perform a frequency sweep operation to obtain all possible frequency points in the frequency band applicable to the user terminal, and according to the signal strength, The frequency points are arranged in descending order, and the query is started from the frequency point with the strongest signal strength, and the target cell that initiates the re-establishment process is determined;
  • the target cell is the serving cell where the user terminal is located, sending a reestablishment request to the target cell, where the target cell initiates a re-establishment process to restore the normal service and the cluster according to the re-establishment request when receiving the re-establishment request business;
  • the determination target cell is a neighboring cell of the serving cell where the user terminal is located, sending a reconstruction request including the second resource configuration information to the target cell, where the target cell initiates a heavy request when receiving the reconfiguration request
  • the establishment process restores the normal service, and restores the cluster service according to the second resource configuration information in the reconstruction request.
  • the frequency sweeping operation acquires all the frequency points in the frequency band applicable to the user terminal, and performs the descending ordering according to the signal strength of the frequency point, and the signal strength is the most The strong frequency starts to query, determines the target cell that initiates the re-establishment process, selects the target cell in this way, and improves the success rate of the determined target cell to initiate the re-establishment process.
  • the determined target cell is the serving cell where the user terminal is located, and after the re-establishment module 23 initiates the re-establishment process, the user terminal has configured the physical layer PHY entity and the media access control layer MAC of the user terminal by using the first configuration information.
  • the entity, the radio link control protocol RLC entity, and the packet data convergence protocol PDCP entity initiate a re-establishment process in the target cell, and the re-establishment process can restore the normal service or the common service and the cluster said user service.
  • the determined target cell is a neighboring cell where the user terminal is located, and the re-establishment module 23 can resume the normal service common service and the cluster said user service by initiating the re-establishment process in the neighboring cell, and the re-establishment module 23 reuses the user terminal to save the
  • the second resource configuration information recovery cluster listens to the user service, and avoids the abnormality of the LTE-based cluster communication system, and needs to be re-accessed as a cluster listening user each time.
  • the re-establishment module 23 of the user terminal in this embodiment detects a radio link abnormality through the physical layer, performs a frequency sweep operation through the physical layer PHY entity, and the re-establishment module 23 acquires all possible frequency points in the frequency band applicable to the user terminal, and Locating the frequency points in descending order according to signal strength, starting from the frequency point with the strongest signal strength, determining a target cell that initiates the re-establishment process, determining the target cell as the cell that most satisfies the re-establishment requirement, and determining whether the target cell is If the service cell in which the user terminal is located, if the cluster listens to the user to maintain the current configuration, and then only needs to initiate the re-establishment process, the normal service or the common service and the cluster can be restored to the user service. If not, the re-establishment process is initiated to restore the normal service.
  • the service and the cluster say that the user service recovers the cluster service according to the second resource configuration
  • the re-establishment module 23 is further configured to:
  • the re-establishment process is initiated to restore the normal service or the normal service and the cluster said user service, and the physical layer PHY entity and the media access control layer MAC entity of the user terminal are configured according to the second resource configuration information in the re-establishment request.
  • a radio link control protocol RLC entity and a packet data convergence protocol PDCP entity to recover the cluster service
  • the re-establishment process is initiated to restore the normal service or the common service and the cluster said user service, and re-access as the cluster listening user.
  • the determined target cell is a neighboring cell where the user terminal is located, and the second resource configuration information of the neighboring cell is stored in the user terminal, and the normal service or the common service and the cluster said user can be restored when the neighboring cell initiates the re-establishment process.
  • the service reconfigures the physical layer PHY entity, the medium access control layer MAC entity, the radio link control protocol (RLC entity), and the packet data convergence protocol (PDCP entity) of the user terminal by using the second resource configuration information saved by the user terminal, and restores the cluster listening user service.
  • the determined target cell is a neighboring cell where the user terminal is located, and the second resource configuration information of the neighboring cell is not stored in the user terminal, and the re-establishment module 23 can resume the normal service or the ordinary cell by initiating the re-establishment process in the neighboring cell.
  • the service and the cluster say the user service, and the user terminal re-accesses as the cluster listening user in the neighboring cell, and restores the cluster to listen to the user service.
  • the target cell determined by the embodiment is a neighboring cell where the user terminal is located, and the second resource configuration information of the neighboring cell is stored in the user terminal, and the re-establishment module 23 can resume the normal service by initiating the re-establishment process in the neighboring cell.
  • the normal service and the cluster say the user service, and then use the second resource configuration information saved by the user terminal to configure
  • the access cluster can listen to the user to recover the cluster service.
  • the second resource configuration information of the neighboring cell is not stored in the user terminal, the user is re-accessed as the cluster listening user to restore the cluster listening user service.
  • the re-establishment module 23 is further configured to:
  • a physical layer PHY entity configuring, according to the third resource configuration information, a physical layer PHY entity, a media access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal, so that the user terminal is re-used as a cluster listening user.
  • a physical layer PHY entity a physical layer PHY entity, a media access control layer MAC entity, a radio link control protocol (RLC entity), and a packet data convergence protocol (PDCP entity) of the user terminal, so that the user terminal is re-used as a cluster listening user.
  • RLC entity radio link control protocol
  • PDCP entity packet data convergence protocol
  • the cluster paging message carries the cluster service radio network temporary authentication information TRNTI necessary for receiving the cluster configuration information.
  • the re-establishment module 23 uses the TRNTI to distinguish the radio network temporary authentication information RTNI of the common service, and on the other hand, re-establishes the module.
  • the user terminal may perform a blind detection operation according to the TRNTI to monitor the third resource configuration information of the current target cell of the user terminal and the fourth resource configuration information of the neighboring cell.
  • the user terminal re-establishment module 23 implements the user terminal re-configuration by configuring the physical layer PHY entity, the media access control layer MAC entity, the radio link control protocol RLC entity, and the packet data convergence protocol PDCP entity of the user terminal by using the third resource configuration information. Listen to the user as a cluster.
  • the re-establishment module 23 reacquires the user by re-acquiring the cluster paging in the target cell.
  • the third resource configuration information of the target cell and the fourth resource configuration information of the neighboring cell are combined with the foregoing to ensure the recovery of the LTE-based trunking communication system of the present invention, and at the same time, the first cell of the target cell is saved.
  • the four resource configuration information provides a basis for the abnormal recovery of the cluster listening user service in the future LTE-based cluster communication system.
  • the user equipment receives the first resource configuration information of the serving cell where the user terminal is delivered by the network side and the second resource configuration information of the neighboring cell of the serving cell, and configures the user terminal by using the first resource configuration information, And saving the second resource configuration information; when an abnormality occurs in the LTE-based trunking communication system in which the normal service and the cluster service run concurrently, the serving cell serves as a target cell, and the cluster listens to the user service to maintain the current configuration work, and the target cell Initiating the re-establishment process, the normal service or the common service of the LTE-based trunking communication system and the cluster-speaking user service can be restored; the neighboring cell of the serving cell initiates the re-establishment process as the target cell to restore the normal service or the common service and the cluster.
  • the user service is said to restore the cluster listening user service through the second resource configuration information saved by the user terminal, thereby realizing the recovery of the LTE-based trunking communication system.

Abstract

本发明公开了一种基于LTE的集群通信系统重建恢复方法，该基于LTE的集群通信系统重建恢复方法包括：监听网络侧下发的用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，以第一资源配置信息配置用户终端，并保存第二资源配置信息；用户终端与网络侧建立RRC链接与业务承载；用户终端检测到无线链路异常时，在其所在服务小区及相邻小区中确定目标小区并向其发送重建请求，以供目标小区在接收到重建请求，发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据第二资源配置信息恢复集群听用户业务。本发明还公开了一种用户终端。实现集群通信系统出现异常时集群听用户业务的恢复。

Description

基于LTE的集群通信系统重建恢复方法和用户终端 技术领域
本发明涉及通讯技术领域，尤其涉及一种基于LTE的集群通信系统重建恢复方法和用户终端。
背景技术
目前，集群通信系统，例如，基于LTE(Long Term Evolution，长期演进)的集群通信系统，在政府部门、公共安全、应急通信、电力、民航、石油化工和军队等领域有着广泛的应用市场。因此，为了适应这种集群通信系统的应用需求，市场上出现了普通业务与集群业务并发的系统(例如，基于LTE的普通业务与集群业务并发的系统)。
目前，首先，在支持普通业务和集群业务并发的集群通信系统(例如，基于LTE的普通业务与集群业务并发的集群通信系统)中，普通业务执行时，用户终端之间的通讯有RRC(Radio Resource Control，无线资源控制协议)链接；而集群业务是一种半双工双向业务，集群用户终端建立到属于某一给定区域某一组用户终端，在通信过程中，组内任何成员均可成为讲话者，但任一时刻只允许有一个讲话者，即主叫集群用户终端，其它均为听者，即被叫集群用户终端，主叫集群用户终端有RRC链接，被叫集群用户终端没有RRC链接；其次，在支持普通业务和集群业务并发的集群通信系统中业务并发的情况包括：1、普通业务与集群听用户业务的并发执行；2、普通业务、集群说用户业务和集群听用户业务的并发执行等，最后，集群业务与普通业务一样，运用的无线环境比较复杂，在普通业务与集群业务执行过程中会遇到各种异常状况，比如无线链路异常，用户终端所在的服务小区向目标小区的切换过程不能同步到目标小区等，此时，重新在用户终端所在的服务小区及其相邻小区选择一个目标小区发起RRC重建立过程来恢复业务，对于基于LTE的普通业务与集群业务并发的集群通信系统出现异常时，后续集群听用户业务如何恢复，必须找到一种解决方案来解决。
上述内容仅用于辅助理解本发明的技术方案，并不代表承认上述内容是现有技术。
发明内容
本发明的主要目的在于解决基于LTE的集群通信系统重建出现异常时，后续集群听用户业务如何恢复的问题。
为实现上述目的，本发明实施例提供了一种基于LTE的集群通信系统重建恢复方法，该基于LTE的集群通信系统重建恢复方法包括，
用户终端监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息；
用户终端与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入；
用户终端检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
优选地，所述用户终端监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息的步骤包括：
用户终端读取网络侧下发的包含收集集群寻呼配置信息的系统信息块，以该系统信息块配置用户终端的物理层；
用户终端监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用该TRNTI配置用户终端的物理层；
用户终端运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述第一资源配置信息及所述第二资源配置信息；
根据所述第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，并将第二资源配置信息存储至用户终端的存储单元。
优选地，所述用户终端检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务的步骤包括：
用户终端通过物理层检测无线链路出现失步状况时，用户终端通过RRC层发送控制命令给物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区；
当确定的目标小区为用户终端所在的服务小区时，集群听用户业务保持当前配置工作，并所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务；
当确定的目标小区为用户终端所在的服务小区的相邻小区时，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述重建请求中的第二资源配置信息恢复集群听用户业务。
优选地，所述当确定的目标小区为用户终端所在的服务小区的相邻小区时，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述重建请求中的第二资源配置信息恢复集群听用户业务的步骤包括：
当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中存储有该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，以恢复集群听用户业务；
当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中没有存储该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入。
优选地，所述当确定的目标小区为用户终端所在的服务小区的相邻小区，如用户终端中没有存储该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入的步骤之后，所述基于LTE的集群通信系统重建恢复方法还包括：
用户终端监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用TRNTI配置用户终端物理层；
用户终端运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述目标小区的第三资源配置信息及所述目标小区的相邻小区的第四资源配置信息；
根据所述第三资源配置信息配置所述用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端重新作为集群听用户接入，并将第四资源配置信息存储至所述用户终端的存储单元。
此外，为实现上述目的，本发明实施例还提供了一种用户终端，该用户终端包括：
监听处理模块：设置为监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息；
建立模块，设置为与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入；
重建立模块，设置为检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
优选地，所述监听处理模块设置为：
读取网络侧下发的包含收集集群寻呼配置信息的系统信息块，以该系统信息块配置用户终端的物理层；
监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用该TRNTI配置用户终端的物理层；
运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述第一资源配置信息及所述第二资源配置信息；
根据所述第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，并将第二资源配置信息存储至用户终端的存储单元。
优选地，所述重建立模块设置为：
通过物理层检测无线链路出现失步状况时，通过RRC层发送控制命令给物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区；
当确定的目标小区为用户终端所在的服务小区时，集群听用户业务保持当前配置工作，并向所述目标小区发送重建请求，以供目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务；
当确定的目标小区为用户终端所在的服务小区的相邻小区时，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
优选地，所述重建立模块还设置为：
当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中存储有该相邻小区的第二资源配置信息，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，以恢复集群听用户业务；
当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中没有存储该相邻小区的第二资源配置信息，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入。
优选地，所述重建立模块还设置为：
监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用TRNTI配置用户终端物理层；
运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述目标小区的第三资源配置信息及所述目标小区的相邻小区的第四资源配置信息；
根据所述第三资源配置信息配置所述用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端重新作为集群听用户接入，并将第四资源配置信息存储至所述用户终端的存储单元。
本发明通过用户终端接收网络侧下发的用户终端所在的服务小区的第一资源配置信息及所述的服务小区的相邻小区的第二资源配置信息，利用第一资源配置信息配置用户终端，并将所述第二资源配置信息保存；当普通业务与集群业务并发运行的基于LTE的集群通信系统出现异常时，所述服务小区作为目标小区，集群听用户业务保持当前配置工作，该目标小区发起重建立过程，即可恢复基于LTE的集群通信系统的普通业务或普通业务和集群说用户业务；所述的服务小区的相邻小区作为目标小区发起重建立过程恢复普通业务或普通业务和集群说用户业务，再通过用户终端保存的第二资源配置信息恢复集群听用户业务，从而实现基于LTE的集群通信系统的恢复。
附图说明
图1为本发明基于LTE的集群通信系统重建恢复方法第一实施例的流程示意图；
图2为图1中用户终端监听第一资源配置信息及第二资源配置信息，根据所述第一资源配置信息配置用户终端的步骤细化流程图；
图3为图1中检测到无线电链路发生异常时，选择目标小区，并向目标小区发送重建请求的步骤细化流程图；
图4为图3中当确定的目标小区为用户终端所在的服务小区的相邻小区时恢复普通业务和集群业务的步骤细化流程图；
图5为本发明基于LTE的集群通信系统重建恢复方法第二实施例的流程示意图；
图6为本发明用户终端第一实施例的功能模块示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参见图1，图1为本发明基于LTE的集群通信系统重建恢复方法第一实施例的流程示意图。
在第一实施例中，该基于LTE的集群通信系统重建恢复方法，包括：
步骤S10，用户终端监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息；
用户终端监听网络侧下发的用户终端所在的服务小区的第一资源配置信息及相邻小区的第二资源配置信息，运用第一资源配置信息配置用户终端，从而供用户终端作为集群听用户接入，保存第二资源配置信息，便于基于LTE的集群通信系统出现异常后，选择相邻小区发起重建立过程时，利用第二资源配置信息恢复集群听用户业务。
步骤S20，用户终端与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入；
用户终端与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入，同时用户终端作为集群说用户和普通业务用户接入，与用户终端作为集群听用户接入之间无先后顺序；因为集群听用户使用的是公用承载，以及集群听用户不需要建立RRC链接。
步骤S30，用户终端检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
当基于LTE的集群通信系统出现无线链路异常时,用户终端在其所在服务小区及相邻小区中确定一个作为目标小区，当确定的目标小区为服务小区，于该服务小区发起重建立过程，即可恢复基于LTE的集群通信系统的普通业务与集群业务；当确定的目标小区为相邻小区，于该相邻小区作发起重建立过程恢复普通业务或普通业务和集群说用户业务，再通过用户终端保存的第二资源配置信息恢复集群听用户业务，从而实现基于LTE的集群通信系统的恢复。
本实施例通过用户终端接收网络侧下发的用户终端所在的服务小区的第一资源配置信息及所述的服务小区的相邻小区的第二资源配置信息，利用第一资源配置信息配置用户终端，并将所述第二资源配置信息保存；当普通业务与集群业务并发运行的基 于LTE的集群通信系统出现异常时，所述服务小区作为目标小区，集群听用户业务保持当前配置工作，该目标小区发起重建立过程，即可恢复基于LTE的集群通信系统的普通业务或普通业务和集群说用户业务；所述的服务小区的相邻小区作为目标小区发起重建立过程恢复普通业务或普通业务和集群说用户业务，再通过用户终端保存的第二资源配置信息恢复集群听用户业务，从而实现基于LTE的集群通信系统的恢复。
参见图2，图2为图1中用户终端监听第一资源配置信息及第二资源配置信息，根据所述第一资源配置信息配置用户终端的步骤细化流程图。
进一步地，步骤S10包括：
步骤S101，用户终端读取网络侧下发的包含收集集群寻呼配置信息的系统信息块，以该系统信息块配置用户终端的物理层；
用户终端读取系统信息块，运用系统信息块中的收集集群寻呼配置信息配置用户终端的物理层，使得用户终端易于收集集群寻呼，譬如：收集集群寻呼配置信息为集群寻呼传输信道TPCH资源内容，利用TPCH资源内容配置用户终端的物理层后，用户终端根据集群的TPCH资源参数就可以检测到集群寻呼，使得集群寻呼的检测方便，快捷，准确。
步骤S102，用户终端监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用该TRNTI配置用户终端的物理层；
集群寻呼消息中带有接收集群配置信息必须的集群业务无线网络临时鉴定信息TRNTI，一方面，用来区别普通业务的无线网络临时鉴定信息RTNI，
另一方面，利用集群寻呼中的TRNTI配置物理层后，用户终端可以根据TRNTI进行盲检操作，以监听获得用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息。
步骤S103，用户终端运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述第一资源配置信息及所述第二资源配置信息；
步骤S104，根据所述第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，并将第二资源配置信息存储至用户终端的存储单元。
用户终端通过利用第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体后，实现用户终端作为集群听用户接入；将第二资源配置信息存储至用户终端的存储单元，用于在基于LTE的集群通信系统出现异常时，选择的目标小区为用户终端所在服务小区的相邻小区时，作为集群听用户业务的恢复依据。
本实施例的用户终端通过读取网络侧下发的系统信息块，运用系统信息块配置物理层后，易于收集集群寻呼，再利用集群寻呼中的TRNTI信息配置用户设备的物理层后，运用TRNTI进行盲检便于快速监听集群组控制信道的第一资源配置信息及所述第二资源配置信息，运用第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端作为集群听用户接入。
参见图3，图3为图1中检测到无线电链路发生异常时，选择目标小区，并向目标小区发送重建请求的步骤细化流程图。
进一步地，步骤S30包括：
步骤S301，用户终端通过物理层检测无线电链路出现失步状况时，用户终端通过RRC层发送控制命令给物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区；
用户终端检测出无线链路出现失步状况时，通过扫频操作获取适用于用户终端的频段中所有的频点，并根据频点的信号强度进行降序排序，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区，通过此种方式选择目标小区，提高了以确定的目标小区发起重建立过程的成功率。
步骤S302，判断目标小区是否为用户终端所在的服务小区；
步骤S303，当确定的目标小区为用户终端所在的服务小区时，所述用户终端的集群听用户业务保持当前配置工作，并向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务；
确定的目标小区为用户终端所在的服务小区，以该目标小区发起重建立过程后，因为用户终端已经运用第一配置信息配置过用户终端的物理层PHY实体、媒体访问控 制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，于该目标小区发起重建立过程，完成重建立过程即可恢复普通业务或普通业务和集群说用户业务。
步骤S304，当确定的目标小区为用户终端所在的服务小区的相邻小区时，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述重建请求中的第二资源配置信息恢复集群听用户业务。
确定的目标小区为用户终端所在的相邻小区，在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，再利用用户终端保存的第二资源配置信息恢复集群听用户业务，避免了基于LTE的集群通信系统出现异常后，每一次需要作为集群听用户重新接入。
本实施例的用户终端通过物理层检测到无线链路异常，通过物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区，确定的目标小区为最满足重建立要求的小区；判断目标小区是否为用户终端所在的服务小区，若是，则只需要发起重建立过程，即可恢复普通业务或普通业务和集群说用户业务，若否，发起重建立过程恢复普通业务或普通业务和集群说用户业务，根据第二资源配置信息恢复集群听用户业务，不需要重新作为集群听用户接入，使得基于LTE的集群通信系统恢复过程简便。
参见图4，图4为图3中当确定的目标小区为用户终端所在的服务小区的相邻小区时恢复普通业务和集群业务的步骤细化流程图。
进一步地，步骤S304包括：
步骤S3041，用户终端是否存储有作为目标小区的相邻小区的第二资源配置信息；
步骤S3042，当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中存储有该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，根据所述第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，以恢复集群听用户业务；
确定的目标小区为用户终端所在的相邻小区，用户终端中存储有该相邻小区的第二资源配置信息，在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，再利用用户终端保存的第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，恢复集群听用户业务。
步骤S3043，当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中没有存储该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入。
确定的目标小区为用户终端所在的相邻小区，用户终端中没有存储有该相邻小区的第二资源配置信息，在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，用户终端在该相邻小区重新作为集群听用户接入，恢复集群听用户业务。
本实施例确定的目标小区为用户终端所在的相邻小区，用户终端中存储有该相邻小区的第二资源配置信息，在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，再利用用户终端保存的第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，恢复集群听用户业务,避免了基于LTE的集群通信系统出现异常后，需要重新接入集群听用户才可以恢复集群听用户业务；当用户终端中没有存储有该相邻小区的第二资源配置信息时，才作为集群听用户重新接入，以恢复集群听用户业务。
参见图5，图5为为本发明基于LTE的集群通信系统重建恢复方法第二实施例的流程示意图。
在第二实施例中，该基于LTE的集群通信系统重建恢复方法的步骤基本与第一实施例的步骤相同，其不同之处在于，所述步骤S3043之后，该基于LTE的集群通信系统重建恢复方法还包括：
步骤S3044，用户终端监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用TRNTI配置用户终端物理层；
集群寻呼消息中带有接收集群配置信息必须的集群业务无线网络临时鉴定信息TRNTI，一方面，用来区别普通业务的无线网络临时鉴定信息RTNI，
另一方面，利用集群寻呼中的TRNTI配置物理层后，用户终端可以根据TRNTI进行盲检操作，以监听获得用户终端发起重建立过程的当前目标小区的第三资源配置信息及相邻小区的第四资源配置信息。
步骤S3045，用户终端运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述目标小区的第三资源配置信息及所述目标小区的相邻小区的第四资源配置信息；
步骤S3046，根据所述第三资源配置信息配置所述用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端重新作为集群听用户接入，并将第四资源配置信息存储至所述用户终端的存储单元。
用户终端通过利用第三资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体后，实现用户终端重新作为集群听用户接入。
本实施例当用户终端的存储单元没有存储该发起重建立过程的作为目标小区的相邻小区的第二资源配置信息，通过用户在该目标小区重新获取集群寻呼，重新获取该目标小区的第三资源配置信息及相邻小区的第四资源配置信息，与上述的情况结合，保证本发明的基于LTE的集群通信系统不管怎么样，均能实现恢复，同时，又一次的保存目标小区以及相邻小区的第四资源配置信息，为以后基于LTE的集群通信系统出现异常集群听用户业务恢复提供依据。
本发明进一步提供一种用户终端。
参见图6，图6为本发明用户终端第一实施例的功能模块示意图。
在第一实施例中，该用户终端包括：
监听处理模块21，设置为监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息；
建立模块22，设置为与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入；
重建立模块23，设置为检测到无线电链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
用户终端的监听处理模块21监听网络侧下发的用户终端所在的服务小区的第一资源配置信息及相邻小区的第二资源配置信息，监听处理模块21运用第一资源配置信息配置用户终端，从而供用户终端作为集群听用户接入，保存第二资源配置信息，便于基于LTE的集群通信系统出现异常后，选择相邻小区发起重建立过程时，利用第二资源配置信息恢复集群听用户业务。
用户终端的建立模块22与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入，同时用户终端作为集群说用户和普通业务用户接入，与用户终端作为集群听用户接入之间无先后顺序；因为集群听用户使用的是公用承载，以及集群听用户不需要建立RRC链接。
当基于LTE的集群通信系统出现无线链路异常时,用户终端的重建立模块23在其所在服务小区及相邻小区中确定一个作为目标小区，当确定的目标小区为服务小区，集群听用户业务保持当前配置工作，重建立模块23于该服务小区发起重建立过程，即可恢复基于LTE的集群通信系统的普通业务或普通业务和集群说用户业务；当确定的目标小区为相邻小区，重建立模块23于该相邻小区作发起重建立过程恢复普通业务或普通业务和集群说用户业务，再通过用户终端保存的第二资源配置信息恢复集群听用户业务，从而实现基于LTE的集群通信系统的恢复。
本实施例通过用户终端的监听处理模块21接收网络侧下发的用户终端所在的服务小区的第一资源配置信息及所述的服务小区的相邻小区的第二资源配置信息，监听处理模块21利用第一资源配置信息配置用户终端，并将所述第二资源配置信息保存；当普通业务与集群业务并发运行的基于LTE的集群通信系统出现异常时，重建立模块23发起重建请求，以供目标小区接收到重建请求后发起重建立过程；若服务小区作为目标小区，集群听用户业务保持当前配置工作，该目标小区发起重建立过程，即可恢复基于LTE的集群通信系统的普通业务或普通业务和集群说用户业务；若服务小区的相邻小区作为目标小区时，发起重建立过程恢复普通业务或普通业务和集群说用户业务，再通过用户终端保存的第二资源配置信息恢复集群听用户业务，从而实现基于LTE的集群通信系统的恢复。
进一步地，监听处理模块21设置为：
读取网络侧下发的包含收集集群寻呼配置信息的系统信息块，以该系统信息块配置用户终端的物理层；
监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用该TRNTI配置用户终端的物理层；
运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述第一资源配置信息及所述第二资源配置信息；
监听处理模块根据所述第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，并将第二资源配置信息存储至用户终端的存储单元。
用户终端的监听处理模块21读取系统信息块，运用系统信息块中的收集集群寻呼配置信息配置用户终端的物理层，使得用户终端易于收集集群寻呼，譬如：收集集群寻呼配置信息为集群寻呼传输信道TPCH资源内容，利用TPCH资源内容配置用户终端的物理层后，用户终端根据集群的TPCH资源参数就可以检测到集群寻呼，使得集群寻呼的检测方便，快捷，准确。
集群寻呼消息中带有接收集群配置信息必须的集群业务无线网络临时鉴定信息TRNTI，一方面，监听处理模块21利用TRNTI用来区别普通业务的无线网络临时鉴定信息RTNI，另一方面，监听处理模块21利用集群寻呼中的TRNTI配置物理层后，用户终端可以根据TRNTI进行盲检操作，以监听获得用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息。
用户终端的监听处理模块21通过利用第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体后，实现用户终端作为集群听用户接入；将第二资源配置信息存储至用户终端的存储单元，设置为在基于LTE的集群通信系统出现异常时，选择的目标小区为用户终端所在服务小区的相邻小区时，作为集群听用户业务的恢复依据。
本实施例的用户终端的监听处理模块21通过读取网络侧下发的系统信息块，运用系统信息块配置物理层后，易于收集集群寻呼，监听处理模块21再利用集群寻呼中的TRNTI信息配置用户设备的物理层后，监听处理模块21运用TRNTI进行盲检便于快速监听集群组控制信道的第一资源配置信息及所述第二资源配置信息，监听处理模块 21运用第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端作为集群听用户接入。
进一步地，重建立模块23设置为：
通过物理层检测无线电链路出现失步状况时，通过RRC层发送控制命令给物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区；
当确定的目标小区为用户终端所在的服务小区时，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务和集群业务；
当确定的目标小区为用户终端所在的服务小区的相邻小区时，向所述目标小区发送包含所述第二资源配置信息的重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务，并根据所述重建请求中的第二资源配置信息恢复集群业务。
用户终端的重建立模块23检测出无线链路出现失步状况时，通过扫频操作获取适用于用户终端的频段中所有的频点，并根据频点的信号强度进行降序排序，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区，通过此种方式选择目标小区，提高了以确定的目标小区发起重建立过程的成功率。
确定的目标小区为用户终端所在的服务小区，重建立模块23以该目标小区发起重建立过程后，因为用户终端已经运用第一配置信息配置过用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，于该目标小区发起重建立过程，完成重建立过程即可恢复普通业务或普通业务和集群说用户业务。
确定的目标小区为用户终端所在的相邻小区，重建立模块23在该相邻小区发起重建立过程即可恢复普通业务普通业务和集群说用户业务，重建立模块23再利用用户终端保存的第二资源配置信息恢复集群听用户业务，避免了基于LTE的集群通信系统出现异常后，每一次需要作为集群听用户重新接入。
本实施例的用户终端的重建立模块23通过物理层检测到无线链路异常，通过物理层PHY实体进行扫频操作，重建立模块23获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区，确定的目标小区为最满足重建立要求的小区；判断目标小区是否为用户终端所在的服务小区，若是，集群听用户保持当前配置工作，再只需要发起重建立过程，即可恢复普通业务或普通业务和集群说用户业务，若否，发起重建立过程恢复普通业务普通业务和集群说用户业务，根据第二资源配置信息恢复集群业务，使得基于LTE的集群通信系统恢复过程简便。
进一步地，重建立模块23还设置为：
当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中存储有该相邻小区的第二资源配置信息，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述重建请求中的第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，以恢复集群业务；
当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中没有存储该相邻小区的第二资源配置信息，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入。
确定的目标小区为用户终端所在的相邻小区，用户终端中存储有该相邻小区的第二资源配置信息，在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，再利用用户终端保存的第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，恢复集群听用户业务。
确定的目标小区为用户终端所在的相邻小区，用户终端中没有存储有该相邻小区的第二资源配置信息，重建立模块23在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，用户终端在该相邻小区重新作为集群听用户接入，恢复集群听用户业务。
本实施例确定的目标小区为用户终端所在的相邻小区，用户终端中存储有该相邻小区的第二资源配置信息，重建立模块23在该相邻小区发起重建立过程即可恢复普通业务或普通业务和集群说用户业务，再利用用户终端保存的第二资源配置信息配置用 户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，恢复集群听用户业务，避免了基于LTE的集群通信系统出现异常后，需要重新接入集群听用户才可以恢复集群业务；当用户终端中没有存储有该相邻小区的第二资源配置信息时，才作为集群听用户重新接入，以恢复集群听用户业务。
进一步地，所述重建立模块23还设置为：
监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用TRNTI配置用户终端物理层；
运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述目标小区的第三资源配置信息及所述目标小区的相邻小区的第四资源配置信息；
根据所述第三资源配置信息配置所述用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端重新作为集群听用户接入，并将第四资源配置信息存储至所述用户终端的存储单元。
集群寻呼消息中带有接收集群配置信息必须的集群业务无线网络临时鉴定信息TRNTI，一方面，重建立模块23利用TRNTI来区别普通业务的无线网络临时鉴定信息RTNI，另一方面，重建立模块23利用集群寻呼中的TRNTI配置物理层后，用户终端可以根据TRNTI进行盲检操作，以监听获得用户终端当前目标小区的第三资源配置信息及相邻小区的第四资源配置信息。
用户终端的重建立模块23通过利用第三资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体后，实现用户终端重新作为集群听用户接入。
本实施例当用户终端的存储单元没有存储该发起重建立过程的作为目标小区的相邻小区的第二资源配置信息，重建立模块23通过用户在该目标小区重新获取集群寻呼，重新获取该目标小区的第三资源配置信息及相邻小区的第四资源配置信息，与上述的情况结合，保证本发明的基于LTE的集群通信系统恢复，同时，又一次的保存目标小区相邻小区的第四资源配置信息，为以后基于LTE的集群通信系统出现异常恢复集群听用户业务提供依据。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
工业实用性
本发明通过用户终端接收网络侧下发的用户终端所在的服务小区的第一资源配置信息及所述的服务小区的相邻小区的第二资源配置信息，利用第一资源配置信息配置用户终端，并将所述第二资源配置信息保存；当普通业务与集群业务并发运行的基于LTE的集群通信系统出现异常时，所述服务小区作为目标小区，集群听用户业务保持当前配置工作，该目标小区发起重建立过程，即可恢复基于LTE的集群通信系统的普通业务或普通业务和集群说用户业务；所述的服务小区的相邻小区作为目标小区发起重建立过程恢复普通业务或普通业务和集群说用户业务，再通过用户终端保存的第二资源配置信息恢复集群听用户业务，从而实现基于LTE的集群通信系统的恢复。

Claims (10)

  1. 一种基于LTE的集群通信系统重建恢复方法，包括：
    用户终端监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息；
    所述用户终端与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入；
    所述用户终端检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
  2. 如权利要求1所述的基于LTE的集群通信系统重建恢复方法，其中，所述用户终端监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息的步骤包括：
    用户终端读取网络侧下发的包含收集集群寻呼配置信息的系统信息块，以该系统信息块配置用户终端的物理层；
    用户终端监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用该TRNTI配置用户终端的物理层；
    用户终端运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述第一资源配置信息及所述第二资源配置信息；
    根据所述第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，并将第二资源配置信息存储至用户终端的存储单元。
  3. 如权利要求1所述的基于LTE的集群通信系统重建恢复方法，其中，所述用户终端检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业 务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务的步骤包括：
    用户终端通过物理层检测无线链路出现失步状况时，用户终端通过RRC层发送控制命令给物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区；
    当确定的目标小区为用户终端所在的服务小区时，所述用户终端的集群听用户业务保持当前配置工作，并向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务；
    当确定的目标小区为用户终端所在的服务小区的相邻小区时，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
  4. 如权利要求3所述的基于LTE的集群通信系统重建恢复方法，其中，所述当确定的目标小区为用户终端所在的服务小区的相邻小区时，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务的步骤包括：
    当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中存储有该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，根据所述第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，以恢复集群听用户业务；
    当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中没有存储该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入。
  5. 如权利要求4所述的基于LTE的集群通信系统重建恢复方法，其中，所述当确定的目标小区为用户终端所在的服务小区的相邻小区，如用户终端中没有存储该相邻小区的第二资源配置信息，所述用户终端向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户，并作为集群听用户重新接入的步骤之后，所述基于LTE的集群通信系统重建恢复方法还包括：
    用户终端监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用TRNTI配置用户终端物理层；
    用户终端运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述目标小区的第三资源配置信息及所述目标小区的相邻小区的第四资源配置信息；
    根据所述第三资源配置信息配置所述用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端重新作为集群听用户接入，并将第四资源配置信息存储至所述用户终端的存储单元。
  6. 一种用户终端，包括：
    监听处理模块，设置为监听网络侧下发的该用户终端所在服务小区的第一资源配置信息及相邻小区的第二资源配置信息，根据所述第一资源配置信息配置用户终端，供用户终端作为集群听用户接入，并保存所述第二资源配置信息；
    建立模块，设置为与网络侧建立RRC链接与业务承载，供用户终端作为集群说用户和普通业务用户接入；
    重建立模块，设置为检测到无线链路发生异常时，在用户终端所在服务小区及其相邻小区中选择一个作为目标小区，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
  7. 如权利要求6所述的用户终端，其中，所述监听处理模块设置为：
    读取网络侧下发的包含收集集群寻呼配置信息的系统信息块，以该系统信息块配置用户终端的物理层；
    监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用该TRNTI配置用户终端的物理层；
    运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述第一资源配置信息及所述第二资源配置信息；
    根据所述第一资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，并将第二资源配置信息存储至用户终端的存储单元。
  8. 如权利要求6所述的用户终端，其中，所述重建立模块设置为：
    通过物理层检测无线链路出现失步状况时，通过RRC层发送控制命令给物理层PHY实体进行扫频操作，获取适用于用户终端的频段中所有可能的频点，并根据信号强度对所述频点进行降序排列，从信号强度最强的频点开始查询，确定发起重建立过程的目标小区；
    当确定的目标小区为用户终端所在的服务小区时，集群听用户业务保持当前配置工作，并向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时，根据所述重建请求发起重建立过程恢复普通业务或普通业务和集群说用户业务；
    当确定的目标小区为用户终端所在的服务小区的相邻小区时，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息恢复集群听用户业务。
  9. 如权利要求8所述的用户终端，其中，所述重建立模块还设置为：
    当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中存储有该相邻小区的第二资源配置信息，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并根据所述第二资源配置信息配置用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，以恢复集群听用户业务；
    当确定的目标小区为用户终端所在的服务小区的相邻小区时，如用户终端中没有存储该相邻小区的第二资源配置信息，向所述目标小区发送重建请求，以供所述目标小区在接收到重建请求时发起重建立过程恢复普通业务或普通业务和集群说用户业务，并作为集群听用户重新接入。
  10. 如权利要求9所述的用户终端，其中，所述重建立模块还设置为：
    监听集群寻呼信道以获得网络侧下发的包括集群业务无线网络临时鉴定信息TRNTI的集群寻呼，运用TRNTI配置用户终端物理层；
    运用所述TRNTI进行盲检，监听集群组控制信道以获得网络侧下发的所述目标小区的第三资源配置信息及所述目标小区的相邻小区的第四资源配置信息；
    根据所述第三资源配置信息配置所述用户终端的物理层PHY实体、媒体访问控制层MAC实体、无线链路控制协议RLC实体、分组数据汇聚协议PDCP实体，供用户终端重新作为集群听用户接入，并将第四资源配置信息存储至所述用户终端的存储单元。
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