Cluster air interface downlink point-to-multipoint transmission configuration method, terminal, base station and system

Abstract

The application provides a cluster air interface downlink point-to-multipoint transmission configuration method, a terminal, a base station and a system. The method comprises cluster air interface configurations for idle state cluster transmission and connected state cluster transmission in system information of a cluster communication system. The cluster air interface configurations are specifically: configuring a cluster terminal dedicated initial BWP as the entire system carrier bandwidth in the system information of the cluster communication system, and adding a PDSCH link aggregation configuration and a PDSCH link aggregation configuration dedicated to the cluster dedicated downlink point-to-multipoint transmission. The application ensures that the BWP of the cluster terminal in the idle state is wide enough, the downlink point-to-multipoint air interface transmission resource is sufficient, and the scheduling flexibility requirement is met. Meanwhile, the BWP received by the non-cluster terminal in the IDLE state is as small as possible, and the power consumption of the non-cluster terminal in the IDLE state is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cluster communication, in particular to a cluster air interface downlink point-to-multipoint transmission configuration method, a terminal, a base station and a system. BACKGROUND

[0002] The international standard organization 3GPP (3rd Generation Partnership Project) has started the standardization work of new air interface New Radio (NR) from Rel15. The NR air interface can well support unicast data transmission. On the other hand, in order to meet the purpose of a large number of terminals simultaneously receiving downlink, the cluster communication system usually needs to bear the downlink point-to-multipoint transmission function supported by the air interface technology of cluster communication. If a large number of terminals are gathered in a single cell, it is easy to cause cell congestion, which seriously affects the user experience of cluster communication services. The existing New Radio (NR) air interface cannot effectively meet the requirements of cluster communication, mainly because it cannot well support the downlink point-to-multipoint transmission function of the air interface. SUMMARY

[0003] The embodiments of the present application provide a cluster air interface downlink point-to-multipoint transmission configuration method, a terminal, a base station and a system. The cluster terminal uses the downlink point-to-multipoint transmission configuration, which can well support the downlink point-to-multipoint transmission function of the air interface.

[0004] The embodiments of the present application adopt the following technical solutions:

[0005] In a first aspect, the embodiments of the present application provide a cluster air interface downlink point-to-multipoint transmission configuration method, which includes configuring the cluster air interface for idle state cluster transmission in the system information of a cluster communication system, and configuring the cluster air interface for connected state cluster transmission, wherein the cluster air interface configuration for connected state cluster transmission includes the following steps:

[0006] An RRC connection establishment step, in which a cluster service terminal establishes an RRC connection with a core network, and the core network includes a plurality of base stations;

[0007] A cluster service context establishment step, in which the core network establishes a cluster service context with a cluster core network scheduling subsystem;

[0008] A configuration step, in which the cluster air interface is configured for a cluster service terminal and a cluster service listening terminal;

[0009] A paging step, in which the core network pages the listening terminal according to a paging message of the cluster core network scheduling subsystem;

[0010] A cluster service data forwarding step, in which the core network forwards cluster service data according to the cluster service air interface configuration;

[0011] The cluster air interface configuration is specifically: configuring a cluster terminal dedicated initial BWP as the entire system carrier bandwidth in the system information of the cluster communication system, and adding a cluster dedicated downlink point to PDSCH link aggregation configuration and PDSCH link aggregation configuration dedicated to multi-transmission.

[0012] Further, the cluster air interface configuration for the connected state cluster transmission is consistent with the cluster air interface configuration for the idle state cluster transmission, or the cluster air interface configuration for the connected state cluster transmission contains the cluster air interface configuration for the idle state cluster transmission.

[0013] Further, after the cluster air interface configuration for the idle state cluster transmission is completed, the idle cluster terminal normally receives system broadcast messages and paging messages.

[0014] Further, in the RRC connection establishment step, the cluster talk terminal initiates an RRC connection establishment process, and simultaneously notifies the base station of cluster capability information through the core network.

[0015] Further, after the core network and the cluster core network scheduling subsystem establish a cluster service context, the base station determines that the cluster talk terminal and the cluster listening terminal are cluster communication terminals according to the information reported by the cluster talk terminal and the cluster listening terminal, or according to the terminal context information obtained from the core network.

[0016] Further, the cluster air interface configuration further includes: adding an information block link aggregation for configuring cluster function related parameters in the system information of the cluster communication system, and adding a downlink general configuration information block link aggregation for configuring BWP configuration and PDCCH link aggregation configuration and PDSCH link aggregation configuration used by cluster downlink point to multi-point transmission in the information block link aggregation.

[0017] Further, the adding of the downlink general configuration information block link aggregation in the information block link aggregation includes BWP configuration, PDCCH link aggregation configuration, and PDSCH link aggregation configuration for the idle state cluster terminal.

[0018] In a second aspect, the embodiments of the present application also provide a terminal for implementing the method of any one of the embodiments of the first aspect of the present application, the terminal supports cluster services, including a cluster talk terminal and a cluster listening terminal, and the terminal group includes:

[0019] The RRC connection establishment module is configured to establish an RRC connection with the base station when no RRC connection is established between the terminal and the base station.

[0020] The service request module is configured to send a cluster service request to the base station when it is determined that the RRC connection has been successfully established.

[0021] The configuration module is configured to receive cluster air interface configuration information or RRC reconfiguration information sent by the base station, and the cluster air interface configuration information is specifically configured as follows: configuring a cluster terminal dedicated initial BWP into the entire system carrier bandwidth in system information of the cluster communication system, and adding PDSCH link aggregation configuration and PDSCH link aggregation configuration dedicated to the cluster downlink point-to-multipoint transmission.

[0022] In a third aspect, the embodiments of the present application further provide a base station for implementing the method of any one of the embodiments of the first aspect of the present application, and the base station comprises:

[0023] The RRC connection establishment module is configured to interact with the cluster service terminal to establish an RRC connection.

[0024] The context establishment module is configured to interact with a cluster core network scheduling subsystem to establish a cluster service context, and the cluster service context establishment is triggered based on an RRC connection establishment request or a cluster service request sent by the terminal.

[0025] The configuration module is configured to perform cluster air interface configuration on the cluster service terminal and the cluster service listening terminal, and the cluster air interface configuration is specifically configured as follows: configuring a cluster terminal dedicated initial BWP into the entire system carrier bandwidth in system information of the cluster communication system, and adding PDSCH link aggregation configuration and PDSCH link aggregation configuration dedicated to the cluster downlink point-to-multipoint transmission.

[0026] The paging module is configured to page the listening terminal according to a paging message of the cluster core network scheduling subsystem.

[0027] The data forwarding module is configured to forward cluster service data according to cluster service air interface configuration.

[0028] In a fourth aspect, the embodiments of the present application further provide a cluster communication system for implementing the method of any one of the embodiments of the first aspect of the present application, and the cluster communication system comprises:

[0029] The terminal is configured to support a cluster service function.

[0030] The core network comprises a plurality of base stations and is configured to provide over-the-air radio bearing for the cluster service.

[0031] One or more independent cluster core network scheduling subsystems are configured to provide the cluster service for the terminal through the core network.

[0032] The above at least one technical scheme adopted by the embodiments of the present application can achieve the following beneficial effects:

[0033] The initial BWP of the cluster terminal in the idle state is configured as the entire system carrier bandwidth, so as to ensure that the BWP of the cluster terminal in the idle state is wide enough, the downlink point-to-multipoint air interface transmission resource is sufficient, and the scheduling flexibility requirement is met; meanwhile, the cluster dedicated downlink point-to-multipoint transmission dedicated PDCCH link aggregation configuration and PDSCH link aggregation configuration are added, so as to ensure that the BWP received by the non-cluster terminal in the IDLE state is as small as possible, and the power consumption of the non-cluster terminal in the IDLE state is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:

[0035] Figure 1 Logical structure diagram for cluster air interface configuration of the application.

[0036] Figure 2 Flowchart for cluster air interface configuration for connected state cluster transmission of the application. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the application clearer, the technical scheme of the application will be described in detail below with the specific embodiments of the application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0038] The technical scheme provided by each embodiment of the application will be described in detail below with reference to the drawings.

[0039] Embodiment 1

[0040] The embodiment of the application provides a cluster air interface downlink point-to-multipoint transmission configuration method, which comprises cluster air interface configuration for idle state cluster transmission and cluster air interface configuration for connected state cluster transmission in system information (system information is a type of information periodically broadcast by a cluster base station, and different types of system information are divided into different categories according to functions, such as SIB1, SIB2 and SIB3, and the system in the system information refers to a radio access network, i.e. the following core network). The cluster air interface configuration for connected state cluster transmission is consistent with the cluster air interface configuration for idle state cluster transmission, or the cluster air interface configuration for connected state cluster transmission contains the cluster air interface configuration for idle state cluster transmission. The cluster air interface configuration for connected state cluster transmission comprises the following steps:

[0041] RRC connection establishment step, the trunking service talker establishes RRC connection with the core network, the core network includes several base stations, in the RRC connection establishment step, the trunking service talker initiates RRC connection establishment process, and the trunking capability information is informed to the base station through the core network.

[0042] Trunking service context establishment step, the core network establishes trunking service context with the trunking core network scheduling subsystem, after the core network establishes trunking service context with the trunking core network scheduling subsystem, the base station judges that the trunking service talker and the trunking service listener are trunking communication terminals according to the information reported by the trunking service talker and the trunking service listener, or according to the terminal context information obtained from the core network.

[0043] Configuration step, the trunking service talker and the trunking service listener are configured with trunking air interface;

[0044] Paging step, the core network pages the listener according to the paging message of the trunking core network scheduling subsystem;

[0045] Trunking service data forwarding step, the core network forwards the trunking service data according to the trunking service air interface configuration.

[0046] The above-mentioned trunking air interface configuration is specifically: in the system information of the trunking communication system, the initial BWP (BWP-DownlinkCommon-Trunking) dedicated to the trunking terminal is configured into the entire system carrier bandwidth, that is, downlink common link aggregation, and the PDCCH link aggregation configuration (PDCCH-Config-Trunking) and the PDSCH link aggregation configuration (PDSCH-Config-Trunking) dedicated to the downlink point-to-multipoint transmission are increased.

[0047] The application introduces the concept of BWP (Bandwidth Part) through the NR air interface, the terminal works in only one BWP at the same time, the BWP can be configured to be less than the system carrier bandwidth, and two BWP configuration modes are adopted:

[0048] Mode 1: The initial BWP of the cluster terminal in the idle state is configured as the entire system carrier bandwidth, which is suitable for the case of small carrier bandwidth (for example, the carrier bandwidth is less than 20Mhz, and the carrier bandwidth is less than 20Mhz for the case of 1Ghz below frequency band, which is very common, and using 1Ghz below frequency band can provide good coverage with less base station deployment). Ensure that the BWP of the cluster terminal in the idle state is wide enough to ensure sufficient downlink point-to-multipoint air interface transmission resources and meet the scheduling flexibility requirements.

[0049] Mode 2: For the case of large system carrier bandwidth (for example, the system carrier bandwidth is 100Mh), on the one hand, the BWP of the cluster terminal in the idle state needs to be wide enough to ensure sufficient downlink point-to-multipoint air interface transmission resources and meet the scheduling flexibility requirements; on the basis of mode 1, increase the PDCCH link aggregation configuration (PDCCH-Config-Trunking) and PDSCH link aggregation configuration (PDSCH-Config-Trunking) dedicated to cluster downlink point-to-multipoint transmission, to ensure that the BWP received by the non-cluster terminal in the IDLE state is as small as possible, and reduce the power consumption of the non-cluster terminal in the IDLE state.

[0050] In the above cluster air interface configuration, the initial BWP configuration for the cluster terminal is added in the system message, which is the downlink common link aggregation (BWP-DownlinkCommon-Trunking). The BWP configuration in BWP-DownlinkCommon-Trunking is compatible with the configuration parameters of the original downlink common link (BWP-DownlinkCommon), and the BWP bandwidth used is larger than BWP-DownlinkCommon. The cluster terminal uses the downlink common link aggregation (BWP-DownlinkCommon-Trunking) configuration parameters, which can receive the original system information and paging message, and the downlink common link aggregation (BWP-DownlinkCommon-Trunking) configuration also contains downlink physical control channel aggregation (pdcch-Config-Trunking) and downlink physical shared channel aggregation (pdsch-Config-Trunking) configuration.

[0051] After the cluster air interface configuration for the idle state cluster transmission is completed in the above manner, the idle cluster terminal normally receives system broadcast messages and paging messages. In addition to the downlink physical control channel common link (pdcch-Configcommon) and the downlink physical shared channel common link (pdsch-Configcommon) in the downlink common link (BWP-DownlinkCommon) that the idle cluster terminal needs to receive, if the system message also configures the downlink physical control channel link aggregation configuration (pdcch-Config-Trunking) and the downlink physical shared channel link aggregation configuration (pdsch-Config-Trunking) parameters, the idle cluster terminal also needs to attempt to receive on the resources indicated by the pdcch-Config-Trunking and pdsch-Config-Trunking parameters.

[0052] The pdcch-Config-Trunking and pdsch-Config-Trunking are added in the BWP-DownlinkCommon configuration parameter in the existing system information block 1 (SIB1), which is used to configure the BWP used by the cluster downlink point-to-multipoint transmission and the PDCCH and PDSCH configuration, wherein the pdcch-Config-Trunking and pdsch-Config-Trunking indicate that the resources are only used for downlink reception of the cluster control channel and the cluster service channel.

[0053] The specific configuration program code is as follows:

[0054] SIB1 system information block 1

[0055] ->servingcellConfigCommonSIB******servingcellConfigCommonSIB

[0056] ->DownlinkConfigCommonSIB******DownlinkConfigCommonSIB

[0057] ->BWP-DownlinkCommon******BWP-DownlinkCommon

[0058] ->BWP******BWP

[0059] ->pdcch-Configcommon******pdcch-Configcommon

[0060] ->pdsch-Configcommon******pdsch-Configcommon

[0061] -> pdcch-Config-Trunking Downlink control channel link aggregation configuration

[0062] -> pdsch-Config-Trunking Downlink shared channel link aggregation configuration

[0063] In addition, the cluster air interface configuration further comprises: adding an information block link aggregation (SIB-Trunking) in the system information of the cluster communication system for configuring the cluster function related parameters, and adding a downlink general configuration information block link aggregation (DownlinkConfigCommonSIB-Trunking) in the information block link aggregation (SIB-Trunking) for configuring the BWP configuration used by the cluster downlink point-to-multipoint transmission and the PDCCH link aggregation configuration and the PDSCH link aggregation configuration. The cluster terminal uses the BWP configuration to receive the system broadcast channel, the paging channel, the cluster control channel, and the cluster service channel in the downlink.

[0064] The specific configuration program code is as follows:

[0065] SIB-Trunking

[0066] -> servingcellConfigCommonSIB-Trunking Serving cell common configuration system information block - link aggregation

[0067] -> DownlinkConfigCommonSIB-Trunking Downlink general configuration information block - link aggregation

[0068] -> BWP-DownlinkCommon-Trunking Bandwidth part - downlink common - link aggregation

[0069] -> BWP-Trunking Bandwidth part - link aggregation

[0070] -> pdcch-Config-Trunking Downlink physical control channel - configuration - link aggregation

[0071] -> pdsch-Config-Trunking Downlink physical shared heart - configuration - link aggregation

[0072] Add the DownlinkConfigCommonSIB-Trunking (Downlink Common Configuration Information Block - Link Aggregation) configuration to the system message. This includes BWP, PDCCH link aggregation, and PDSCH link aggregation configurations for terminals in idle state clusters. Cluster terminals use this BWP configuration for downlink reception on system broadcast channels, paging channels, cluster control channels, and cluster service channels. Add the DownlinkConfigCommonSIB-Trunking configuration to information block 1 (SIB1) to configure the BWP, PDCCH link aggregation, and PDSCH link aggregation configurations used for downlink point-to-multipoint transmission in the cluster.

[0073] The specific configuration program code is as follows:

[0074] SIB1

[0075] ->servingcellConfigCommonSIB****** Serving Cell Common Configuration System Information Block

[0076] ->DownlinkConfigCommonSIB-Trunking******Downlink Common Configuration Information Block - Link Aggregation

[0077] ->BWP-DownlinkCommon-Trunking******Bandwidth Department-Downlink Common-Link Aggregation

[0078] ->BWP-Trunking******Bandwidth Department-Link Aggregation

[0079] ->pdcch-Config-Trunking******Downlink Physical Control Channel-Configuration-Link Aggregation

[0080] ->pdsch-Config-Trunking******Downlink Physical Sharing - Configuration - Link Aggregation

[0081] like Figure 2 As shown, when a terminal enters the connected state, after the base station determines that the terminal is a trunking terminal, the base station provides a dedicated BWP configuration (including PDCCH-trunking configuration and PDSCH-Trunking configuration) for the connected state trunking terminal. The BWP configuration (including PDCCH-trunking and PDSCH-Trunking configuration) for the connected state trunking terminal can be consistent with the BWP-trunking configuration for the idle state trunking terminal, or it can include the BWP-trunking configuration for the idle state trunking terminal. The specific implementation steps are as follows:

[0082] Step 1: the terminal initiates an RRC connection establishment process, and in the connection establishment process, the terminal can inform the base station of the group capability information. Wherein, RRC (Radio Resource Control) is a control signaling different from PDCCH, which is transmitted from the base station to the terminal.

[0083] Step 2: the base station determines that the terminal is a group communication terminal according to the terminal reporting information or according to the terminal context information obtained from the core network.

[0084] Step 3: in the RRC connection reconfiguration process, the base station configures a dedicated BWP for the group terminal and a PDCCH-trunking configuration and a PDSCH-trunking configuration dedicated to the group downlink point-to-multipoint transmission. The configuration can be consistent with the group initial BWP configuration (including PDCCH-trunking configuration and PDSCH-trunking configuration) carried in the system message and the BWP-trunking configuration for the group terminal in the idle state, or can include the BWP-trunking configuration for the group terminal in the idle state.

[0085] Embodiment 2

[0086] The embodiment of the present application also provides a terminal supporting group service, including a group service speaking terminal and a group service listening terminal, and the terminal comprises:

[0087] An RRC connection establishment module, configured to establish an RRC connection with the base station when no RRC connection is established between the terminal and the base station;

[0088] A service request module, configured to send a group service request to the base station when it is determined that the RRC connection has been successfully established;

[0089] A configuration module, configured to receive group air interface configuration information or RRC reconfiguration information sent by the base station, and the group air interface configuration information is configured in the following manner: in the system information of the group communication system, the initial BWP dedicated to the group terminal is configured as the entire system carrier bandwidth, and a PDSCH link aggregation configuration and a PDSCH link aggregation configuration dedicated to the group downlink point-to-multipoint transmission are added.

[0090] The embodiment of the present application also provides a base station, comprising:

[0091] An RRC connection establishment module, configured to interact with a group service speaking terminal to establish an RRC connection;

[0092] A context establishment module, configured to interact with a group core network scheduling subsystem to establish a group service context, and the establishment of the group service context is triggered based on an RRC connection establishment request or a group service request sent by the terminal.

[0093] a configuration module, configured to configure a trunking air interface for a trunking service talk terminal and a trunking service listen terminal, and the trunking air interface configuration is specifically: configuring a trunking terminal dedicated initial BWP as an entire system carrier bandwidth in system information of the trunking communication system, and adding a PDSCH link aggregation configuration and a PDSCH link aggregation configuration dedicated to a trunking downlink point-to-multipoint transmission;

[0094] a paging module, configured to page the listen terminal according to a paging message of a trunking core network scheduling subsystem;

[0095] a data forwarding module, configured to forward trunking service data according to the trunking service air interface configuration.

[0096] Embodiments of the present application further provide a trunking communication system, comprising:

[0097] a terminal, configured to support a trunking service function;

[0098] a core network, comprising a plurality of base stations, configured to provide an over-the-air radio bearer for the trunking service;

[0099] one or more independent trunking core network scheduling subsystems, configured to provide the trunking service for the terminal through the core network.

[0100] In addition, the trunking core network scheduling subsystem described above comprises: a trunking server (PDS), comprising one or a plurality of media plane processing entities and one control plane processing entity, configured to implement media plane and control plane processing of the trunking service through the core network; a home register (PHR), configured to provide registration of a group and group members, provide local information of the group members, and the like; a dispatching station server (DAS), configured to interactively perform scheduling management operations with the PDS and the PHR.

[0101] The terminal, the base station, and the system described above all have the features described in Embodiment 1.

[0102] It should be further noted that the terms “comprising”, “containing” or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement “including a…” does not exclude the presence of another identical element in the process, method, article or device including the element.

[0103] The above merely provides an example of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the scope of claims of the present application.

Claims

1. A method for configuring point-to-multipoint transmission of downlink air interface in a cluster, characterized in that, The cluster air interface configuration for idle state cluster transmission is included in the system information of the cluster communication system, and the cluster air interface configuration for connected state cluster transmission, wherein the cluster air interface configuration for connected state cluster transmission includes the following steps: An RRC connection establishment step, in which a cluster service talk terminal establishes an RRC connection with a core network, and the core network includes a plurality of base stations; A cluster service context establishment step, in which the core network establishes a cluster service context with a cluster core network scheduling subsystem; A configuration step, in which the cluster service talk terminal and the cluster service listen terminal are configured with the cluster air interface configuration; A paging step, in which the core network pages the listen terminal according to a paging message of the cluster core network scheduling subsystem; A cluster service data forwarding step, in which the core network forwards cluster service data according to the cluster service air interface configuration; The cluster air interface configuration specifically includes: configuring a dedicated initial downlink bandwidth part (BWP) for a cluster terminal in the system information of the cluster communication system, configuring the bandwidth of the cluster terminal dedicated initial BWP as the entire system carrier bandwidth, and adding PDSCH link aggregation configuration and PDSCH link aggregation configuration dedicated to cluster downlink point-to-multipoint transmission; extending the downlink common configuration in the system information to carry the cluster dedicated initial BWP configuration, PDCCH configuration, and PDSCH configuration; and the cluster terminal uses the dedicated initial BWP to simultaneously receive the system broadcast channel, paging channel, cluster control channel, and cluster service channel according to the extended downlink common configuration.

2. The cluster air interface downlink point-to-multipoint transmission configuration method of claim 1, wherein, The cluster air interface configuration for connected state cluster transmission is consistent with the cluster air interface configuration for idle state cluster transmission, or the cluster air interface configuration for connected state cluster transmission contains the cluster air interface configuration for idle state cluster transmission.

3. The cluster air interface downlink point-to-multipoint transmission configuration method of claim 1, wherein, After the cluster air interface configuration for idle state cluster transmission is completed, the idle cluster terminal normally receives system broadcast messages and paging messages.

4. The cluster air interface downlink point-to-multipoint transmission configuration method of claim 1, wherein, In the RRC connection establishment step, the cluster service talk terminal initiates an RRC connection establishment process, and simultaneously notifies the base station of the cluster capability information through the core network.

5. The cluster air interface downlink point-to-multipoint transmission configuration method of claim 1, wherein, After the core network establishes the cluster service context with the cluster core network scheduling subsystem, the base station determines that the cluster service talk terminal and the cluster service listen terminal are cluster communication terminals according to the reported information of the cluster service talk terminal and the cluster service listen terminal, or according to the terminal context information obtained from the core network.

6. The cluster air interface downlink point-to-multipoint transmission configuration method of claim 1, wherein, The cluster air interface configuration further includes: adding an information block link aggregation for configuring cluster function related parameters in the system information of the cluster communication system, and adding a downlink common configuration information block link aggregation in the information block link aggregation for configuring BWP configuration, PDCCH link aggregation configuration, and PDSCH link aggregation configuration used by cluster downlink point-to-multipoint transmission.

7. The cluster air interface downlink point-to-multipoint transmission configuration method of claim 6, wherein, The addition of the downlink common configuration information block link aggregation in the information block link aggregation includes BWP configuration, PDCCH link aggregation configuration, and PDSCH link aggregation configuration for terminals in an idle state cluster.

8. A terminal for implementing the method of any one of claims 1 to 7, characterized by The terminal supports cluster service, including cluster service talk terminal and cluster service listening terminal, and the terminal group comprises: An RRC connection establishment module, configured to establish an RRC connection with a base station when no RRC connection is established between the terminal and the base station; A service request module, configured to send a cluster service request to the base station when it is determined that the RRC connection has been successfully established; A configuration module, configured to receive cluster air interface configuration information or RRC reconfiguration information sent by the base station; and the cluster air interface configuration information is specifically configured in the following manner: a cluster terminal dedicated initial BWP is configured as the entire system carrier bandwidth in system information of a cluster communication system, and a PDSCH link aggregation configuration and a PDSCH link aggregation configuration dedicated to cluster downlink point-to-multipoint transmission are added.

9. A base station for implementing the method of any one of claims 1 to 7, characterized in that The base station comprises: An RRC connection establishment module, configured to establish an RRC connection with a cluster service talk terminal; A context establishment module, configured to establish a cluster service context with a cluster core network scheduling subsystem, and trigger the cluster service context establishment based on an RRC connection establishment request or a cluster service request sent by the terminal; A configuration module, configured to perform cluster air interface configuration on the cluster service talk terminal and the cluster service listening terminal, and the cluster air interface configuration is specifically configured in the following manner: a cluster terminal dedicated initial BWP is configured as the entire system carrier bandwidth in system information of a cluster communication system, and a PDSCH link aggregation configuration and a PDSCH link aggregation configuration dedicated to cluster downlink point-to-multipoint transmission are added; A paging module, configured to page the listening terminal according to a paging message of the cluster core network scheduling subsystem; A data forwarding module, configured to forward cluster service data according to cluster service air interface configuration.

10. A trunked radio system for implementing the method of any one of claims 1 to 7, characterized by The method comprises: A terminal, configured to support cluster service function; A core network comprising a plurality of base stations, configured to provide over-the-air wireless bearing for cluster service; One or more independent cluster core network scheduling subsystems, configured to provide cluster service for the terminal through the core network.

Images