CN114143723B

CN114143723B - Method and equipment for sending and receiving trunking paging message in NR cell

Info

Publication number: CN114143723B
Application number: CN202010917041.2A
Authority: CN
Inventors: 魏立梅; 袁乃华; 陈迎; 周志宏; 朱玉梅; 熊途
Original assignee: Chengdu TD Tech Ltd
Current assignee: Chengdu TD Tech Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2022-11-29
Anticipated expiration: 2040-09-03
Also published as: CN114143723A

Abstract

The application provides a method and equipment for sending and receiving trunking paging messages in an NR (neighbor-to-neighbor) cell, wherein the method configures a TPCCH for each BWP (multicast-to-multicast protocol) by determining a plurality of BWPs (multicast-to-multicast protocol) needing to configure the TPCCH; configuring CORESET and search space, cluster paging parameters, a PDCP entity and an RLC entity for TPCCH, and transmitting the processed cluster paging message to an MAC layer of a cell through TPCCH; broadcasting configuration information of TPCCH; generating a cluster paging message of a current cell in an RRC layer; transmitting to a PDCP entity corresponding to the TPCCH, processing the cluster paging message and transmitting to an MAC layer; the MAC layer allocates PDCCH resources and PDSCH resources for the TPCCH in each PDCCH opportunity of each paging opportunity in the paging period; the PHY layer sends corresponding paging messages, and the UE receives corresponding trunking paging messages.

Description

Method and equipment for sending and receiving trunking paging message in NR cell

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and a device for sending and receiving a trunking paging message in an NR cell.

Background

In a Broadband Trunking Communication (BTrunC) protocol based on Long Term Evolution (LTE), a Trunking Paging message is carried in a cell through an added logical Channel, and the added logical Channel is represented by a Trunking Paging Control Channel (TPCCH). The TPCCH is mapped to a transport Channel (TPCH), and the TPCH is mapped to a Physical Downlink Shared Channel (PDSCH).

User Equipment (UE) supporting trunking services needs to monitor TPCCH. Specifically, in each paging cycle, the UE monitors a PDCCH scrambled with a TP-RNTI for Cyclic Redundancy Check (CRC) in each subframe transmitting the TPCCH, receives the dedicated PDSCH for the TPCCH according to a monitored PDCCH uplink Control Information (DCI) format, and obtains a trunking paging message from the PDSCH.

With the continuous development of wireless communication technology, the fifth generation mobile communication (5 g) system has come into people's lives. How to realize the evolution of the BTrunC protocol based on LTE to 5G is a problem to be solved urgently. The problem includes many technical points. Specifically, for the sending method of the trunking paging message in the BTrunC protocol, how to send and receive the trunking paging message in the NR cell of the 5G system is one of the technical points. Aiming at the technical point, the invention provides a method for transmitting and receiving a trunking paging message in a New Radio Access (NR) cell in a 5G system. However, the method provided by the present invention is not only applicable to the evolution of the BTrunC protocol to 5G, but also applicable to other scenarios where the method of the present invention may be applied.

Disclosure of Invention

The application provides a method and equipment for sending and receiving trunking paging messages in an NR (non-reciprocal) cell, so that the technical problems that the information transmission efficiency is low and the 5G technology cannot be widely applied because no 5G trunking paging message sending method exists in the prior art are solved.

In a first aspect, the present application provides a method for sending and receiving a trunking paging message in an NR cell, including:

determining a plurality of Bandwidth Segments (BWPs) needing to configure TPCCH in a Radio Resource Control (RRC) layer of an NR cell, and configuring a unique TPCCH for each BWP;

a base station configures a CORESET (Control resource set) and a search space for each TPCCH, wherein the CORESET and the search space are positioned on BWP (bwpeer) broadcasting the TPCCH and are used for bearing dynamic scheduling information of the TPCCH, and configure cluster paging parameters for each TPCCH, the cluster paging parameters are used for determining paging time for sending the TPCCH, and also configure Packet Data Convergence Protocol (PDCP) entities and Radio Link layer Control Protocol (RLC) entities for each TPCCH, the PDCP entities and the RLC entities are used for processing cluster paging messages generated by the base station on an RRC layer of a cell and transmitting the processed cluster paging messages to a Media Access Control (MAC) layer of the cell through the TPCCH, and the RLC entities are TM mode RLC entities or UM mode RLC entities;

broadcasting configuration information of the TPCCH on a BWP (broadband remote access protocol) sending the TPCCH through system messages, wherein the configuration information comprises the CORESET adopted by the TPCCH, the configuration information of the search space and the configuration information of the cluster paging parameters adopted by the TPCCH;

transmitting the configuration information of each TPCCH to an MAC layer;

generating a cluster paging message of the current cell in an RRC layer according to the broadcasting condition of the cluster service in the current cell;

for each TPCCH, transmitting cluster paging messages generated by an RRC layer to a PDCP entity corresponding to the TPCCH, wherein the cluster paging messages are processed by the PDCP entity corresponding to the TPCCH and an RLM entity corresponding to the TPCCH and transmitted to an MAC layer through the TPCCH;

for each TPCCH, when a trunking paging message needs to be sent in a trunking paging cycle, a MAC Layer allocates, in each PDCCH occasion in each paging occasion in the paging cycle, a Physical Downlink Control Channel (PDCCH) resource and a Physical Downlink Shared Channel (PDSCH) resource for the TPCCH, where the PDCCH resource and the PDSCH resource are respectively used to transmit scheduling Information of the TPCCH and a PDSCH dedicated to the TPCCH, and generate a corresponding Downlink Control Information (DCI) format and a corresponding Transport Block (Transport Block, TB) from the allocated PDSCH resource, and the MAC Layer issues, to a Port Physical Layer (PHY) Layer, allocation Information of the PDCCH resource, allocation Information of the PDSCH resource, the DCI format and the TB corresponding to each PDCCH occasion;

for each TPCCH, aiming at each PDCCH occasion in each cluster paging occasion, a PHY layer sends a corresponding PDCCH and a corresponding PDSCH special for the TPCCH based on the allocation information of PDCCH resources, the allocation information of PDSCH resources, a DCI format and a TB corresponding to the PDCCH occasion, the PDCCH adopts the allocated PDCCH resources to send, the CRC of the PDCCH is scrambled by TP-RNTI, the PDCCH bears the DCI format, the PDSCH special for the TPCCH adopts the allocated PDSCH resources to send, and the PDSCH bears the TB;

the UE receives a system message related to a TPCCH on a BWP according to the Radio Frequency (RF) capability of the UE and the requirement of receiving trunking service so as to obtain configuration information of the TPCCH sent on the BWP, monitors a PDCCH scrambled by TP-RNTI for CRC in a corresponding search space on corresponding COREST on the BWP according to the CORESET in the configuration information of the TPCCH and the configuration information of the search space, receives a special PDSCH for the TPCCH according to the DCI format on the PDCCH when monitoring the corresponding PDCCH, and obtains trunking paging message from the PDSCH.

Optionally, the determining, at the RRC layer of the NR cell, a plurality of BWPs for which a TPCCH needs to be configured, and configuring a unique TPCCH for each BWP includes:

the NR cell is configured with a unique TPCCH that is transmitted on the initial BWP so that all UEs can receive it.

determining the BWP of the broadcast trunking service, configuring a unique TPCCH on each BWP of the broadcast trunking service, and transmitting the TPCCH on the BWP and carrying the latest trunking paging message in a cell.

determining BWP broadcasting common service on downlink bandwidth, configuring a unique TPCCH on the BWP, and transmitting the TPCCH on the BWP and carrying cluster paging information of the current cell.

Optionally, the cluster paging parameters include a paging cycle T, a paging frame PF, a paging subframe Psubframe, and a paging slot Ptimeslot.

Optionally, the determining, by the cluster paging parameter, a paging occasion for sending the TPCCH includes:

and the radio frame SFN corresponding to the starting position of the cluster paging occasion in each cluster paging cycle meets the following conditions:

SFN MOD T＝PF

in each cluster paging cycle, the starting position of the cluster paging occasion is:

the sub-frame number of the radio frame SFN satisfying the above formula is Psubframe, and the time slot of the sub-frame number is Ptimeslot.

Correspondingly, configuring a PDCP entity and an RLC entity for each TPCCH, where the PDCP entity and the RLC entity are configured to process a trunking paging message generated by a base station in an RRC layer of a cell, and specifically include:

when the RLC entity is a TM mode RLC entity, when the trunking paging message is transmitted to the MAC layer through the TPCCH, segmentation is not carried out, and an RLC header is not carried;

when the RLC entity is an UM mode RLC entity, and the trunking paging message is transmitted to the MAC layer through the TPCCH, the trunking paging message is segmented, and each segment carries an RLC header.

Optionally, the configuration information includes: configuration information of CORESET, search space and cluster paging parameters adopted by the TPCCH;

correspondingly, the configuration information of the broadcast TPCCH includes:

broadcasting configuration information of the TPCCH on BWP (broadband remote access control) which sends the TPCCH through system messages;

or,

carrying through newly added SIB on BWP broadcasting the TPCCH;

or, one of the BWP configuration information of the BWP transmitting the TPCCH is broadcasted in an SIB broadcasting the BWP configuration information.

Optionally, for each TPCCH, when a trunking paging message needs to be sent in one trunking paging cycle, the MAC layer allocates a PDCCH resource and a PDSCH resource to the TPCCH in each PDCCH occasion in each paging occasion in the paging cycle, where the PDCCH resource and the PDSCH resource are respectively used to transmit scheduling information of the TPCCH and a PDSCH dedicated to the TPCCH, and the allocated PDSCH resource generates a corresponding DCI format and TB, which specifically includes:

the MAC layer determines a CORESET adopted by the TPCCH, a search space and each cluster paging occasion for sending cluster paging messages on the TPCCH according to the configuration information of the TPCCH;

for each PDCCH occasion in each paging occasion, a MAC layer allocates PDCCH resources and PDSCH resources for the PDCCH occasions in a CORESET and a search space adopted by the TPCCH, and generates a corresponding DCI format from the PDSCH resources, wherein the DCI format is information carried on the PDCCH, the PDCCH is transmitted by the PDCCH resources, the MAC layer generates TB from MAC SDU from the TPCCH according to the PDSCH resources, the TB is trunking paging messages or fragments of the trunking paging messages when the TPCCH is transmitted in a segmented mode, the TB is transmitted by the PDSCH, and the PDSCH is transmitted by the PDSCH resources.

Optionally, the determining, at the RRC layer of the NR cell, a plurality of BWPs for which the TPCCH needs to be configured, where configuring a unique TPCCH for each BWP includes:

the TPCCH is allocated with a fixed TP-RNTI;

when a plurality of TPCCHs are configured, different TPCCHs are identified by different BWP IDs, and for the same BWP, the TPCCH is identified by TP-RNTI.

In a second aspect, an embodiment of the present application provides a system for sending and receiving a trunking paging message in an NR cell, including:

the first configuration module is used for determining a plurality of BWPs needing to configure TPCCH in an RRC layer of an NR cell and configuring a unique TPCCH for each BWP;

the second configuration module is used for configuring a CORESET and a search space for each TPCCH by the base station, wherein the CORESET and the search space are positioned on BWP broadcasting the TPCCH and are used for bearing dynamic scheduling information of the TPCCH, cluster paging parameters are configured for each TPCCH, the cluster paging parameters are used for determining paging occasion for sending the TPCCH, and each TPCCH is also configured with a PDCP entity and an RLC entity, the PDCP entity and the RLC entity are used for processing cluster paging messages generated by the base station on an RRC layer of a cell and transmitting the processed cluster paging messages to an MAC layer of the cell through the TPCCH, and the RLC entity is a TM mode RLC entity or an UM mode RLC entity;

the broadcast module is used for broadcasting configuration information of the TPCCH on BWP (broadband remote access point) sending the TPCCH through system information, wherein the configuration information comprises the CORESET adopted by the TPCCH, the configuration information of the search space and the configuration information of the cluster paging parameters adopted by the TPCCH;

the first transmission module is used for transmitting the configuration information of each TPCCH to the MAC layer;

the generation module is used for generating the trunking paging message of the current cell on an RRC layer according to the broadcasting condition of the trunking service in the current cell;

the second transmission module is used for transmitting the cluster paging message generated by the RRC layer to a PDCP entity corresponding to each TPCCH, wherein the cluster paging message is processed by the PDCP entity corresponding to the TPCCH and the RLM entity corresponding to the TPCCH and transmitted to the MAC layer through the TPCCH;

the distribution module is used for distributing PDCCH (physical Downlink control channel) resources and PDSCH (physical Downlink shared channel) resources for each TPCCH (physical Downlink control channel) in each PDCCH (physical Downlink control channel) opportunity in each paging opportunity in the paging cycle when cluster paging messages need to be sent in each cluster paging cycle by the MAC layer, the PDCCH resources and the PDSCH resources are used for transmitting scheduling information of the TPCCH and PDSCH special for the TPCCH, corresponding DCI (Downlink control channel) formats and TBs (transport Block) are generated by the distributed PDSCH resources, and the distribution information of the PDCCH resources, the distribution information of the PDSCH resources, the DCI formats and the TBs corresponding to each PDCCH opportunity are issued to the PHY layer by the MAC layer;

the receiving and transmitting module is used for transmitting a corresponding PDCCH and a corresponding PDSCH special for the TPCCH by the PHY layer for each PDCCH occasion in each cluster paging occasion based on the allocation information of PDCCH resources, the allocation information of PDSCH resources, a DCI format and a TB corresponding to the PDCCH occasion, wherein the PDCCH is transmitted by adopting the allocated PDCCH resources, the CRC of the PDCCH is scrambled by TP-RNTI, the PDCCH bears the DCI format, the PDSCH special for the TPCCH is transmitted by adopting the allocated PDSCH resources, and the PDSCH bears the TB;

a receiving module, configured to receive, by the UE, a system message related to the TPCCH on a BWP according to the RF capability of the UE and a requirement of receiving a trunking service, so as to obtain configuration information of the TPCCH sent on the BWP, where the UE monitors, on the BWP, a PDCCH scrambled by a TP-RNTI for a CRC in a corresponding search space on a corresponding COREST according to configuration information of a CORESET and the search space in the configuration information of the TPCCH, and when the corresponding PDCCH is monitored, receives a dedicated PDSCH for the TPCCH according to a DCI format on the PDCCH, and obtains a trunking paging message from the PDSCH.

In a third aspect, an embodiment of the present application provides a device for sending and receiving a trunking paging message in an NR cell, including: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executes the computer-executable instructions stored by the memory to cause the at least one processor to perform the method for sending and receiving a trunking paging message in a NR cell as set forth in the first aspect above and in various possible designs of the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer executes instructions are stored, and when a processor executes the computer to execute the instructions, the methods for sending and receiving a trunking paging message in an NR cell according to the first aspect and various possible designs of the first aspect are implemented.

According to the method and the device for sending and receiving the trunking paging message in the NR cell, after the scheme is adopted, the trunking paging message can be borne by the base station in the NR cell through the TPCCH (logical channel added newly), and the base station configures the RNTI for the TPCCH: and the TP-RNTI is used for identifying TPCCH at an air interface, the TP-RNTI is a fixed value, the TPCCH is mapped to a newly added transmission channel TPCH, the TPCH is mapped to a PDSCH, and the TPCCH can be sent on each BWP of an NR cell, including sending on each BWP carrying trunking service and sending on each BWP of the cell, thereby realizing the sending of trunking paging messages.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic diagram of an architecture of a Next Generation Radio Access Network (NG-RAN) in a 5G system according to an embodiment of the present disclosure;

fig. 2 is a schematic flowchart of a method for sending and receiving a trunking paging message in an NR cell according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a system for sending and receiving a trunking paging message in an NR cell according to an embodiment of the present application;

fig. 4 is a schematic diagram of a basic hardware architecture of a device for sending a trunking paging message in an NR cell according to the present application;

fig. 5 is a schematic diagram of a basic hardware architecture of a device for receiving a trunking paging message in an NR cell according to the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," and "fourth," if any, in the description and claims of this application and the above-described figures are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic diagram of an architecture of an NG-RAN in a 5G system according to an embodiment of the present invention. In the figure, a gNB is a base station of a 5G system, a cell controlled by the gNB is an NR cell, an ng-eNB is an enhanced LTE base station accessed to a 5G core network, and a cell controlled by the ng-eNB is an LTE cell. The gNB and the NG-eNB are respectively connected with the 5GC through NG interfaces, the gNB is interconnected through an Xn interface, the gNB is connected with the NG-eNB through an Xn interface, and the NG-eNB is interconnected through an Xn interface.

With the continuous development of wireless communication technology, 5G systems have come into the lives of people. How to realize the evolution of the BTrunC protocol based on LTE to 5G is a problem to be solved urgently. The problem includes many technical points. Specifically, for the sending method of the trunking paging message in the BTrunC protocol, how to send the trunking paging message in the NR cell of the 5G system is one of the technical points.

In order to solve the above problem, an embodiment of the present application provides a method for sending and receiving a trunking paging message in an NR cell, in which a base station bears the trunking paging message through a new logical channel TPCCH in the NR cell, and the base station configures an RNTI for the TPCCH: and the TP-RNTI is used for identifying TPCCH at an air interface, the TP-RNTI is a fixed value, the TPCCH is mapped to a newly added transmission channel TPCH, and the TPCH is mapped to a PDSCH, so that the sending of the trunking paging message is realized. In the method, UE monitors PDCCH scrambled by TP-RNTI for CRC in CORESET and search space corresponding to TPCCH, when monitoring corresponding PDCCH, dynamic scheduling information of PDSCH special for TPCCH is obtained from DCI format on PDCCH, and corresponding PDSCH is received according to the information to obtain trunking paging message carried on TPCCH.

The following describes the technical solution of the present application and how to solve the above technical problems in detail with reference to specific embodiments. The following specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 2 is a flowchart illustrating a method for sending and receiving a trunking paging message in an NR cell according to an embodiment of the present application, where an execution subject of the embodiment of the present application may be a base station gNB in the embodiment of fig. 1. As shown in fig. 2, the method of this embodiment may include:

s201: and determining a plurality of BWPs needing to configure the TPCCH at the RRC layer of the NR cell, and configuring a unique TPCCH for each BWP.

Wherein the TPCCH is assigned a fixed TP-RNTI.

Optionally, when multiple TPCCHs are configured, different TPCCHs are identified by different BWP IDs, and for the same BWP, the TPCCHs are identified by TP-RNTIs.

Specifically, the base station determines a plurality of BWPs that need to configure the TPCCH in the RRC layer of the NR cell, and configures a unique TPCCH for each BWP in the following optional manners:

the first option is as follows:

the base station configures a unique TPCCH for the NR cell, the TPCCH is transmitted on the initial BWP, and the scheduling information of the TPCCH is also transmitted on the initial BWP so that all UE can receive the TPCCH.

Preferably, the scheduling information of TPCCH is sent in the search space corresponding to CORESET0 on the initial BWP.

Preferably, the scheduling information of TPCCH is sent in search space 0 corresponding to CORESET0 on the initial BWP.

The second option is:

the base station determines the BWP of the broadcast trunking service, and for each BWP of the broadcast trunking service, the base station configures a unique TPCCH on the BWP, the TPCCH is sent on the BWP and carries the latest trunking paging message in the cell, and the scheduling information of the TPCCH is also sent on the BWP. The UE receiving the trunking service on the BWP may receive the corresponding TPCCH on the BWP and obtain the latest trunking paging message from the TPCCH.

The optional mode three:

the base station determines the BWP of the broadcast ordinary service on the downlink bandwidth, and for each BWP of the broadcast ordinary service, the base station configures a unique TPCCH on the BWP, the TPCCH is transmitted on the BWP and carries the trunking paging message of the current cell, and the scheduling information of the TPCCH is also transmitted on the BWP. The UE receiving the normal service on the BWP may receive the corresponding TPCCH on the BWP, and obtain the latest trunking paging message from the TPCCH.

The group paging message includes one or all of the following:

(1) Configuration information of each cluster service broadcasted in the current cell. The configuration information of a cluster service includes: the priority of the service and the air interface resource configuration information of the service. The UE can select to receive the cluster service with high priority according to the priority of the cluster service, and can receive the corresponding cluster service according to the air interface resource configuration information of the cluster service.

(2) And paging indication of each newly added cluster service in the current cell. The paging indication of the newly added trunking service at least comprises: TMGI and priority of paged group service, TMGI of a group service is used to identify a group service at the application layer. And the UE determines the newly added trunking service of the current cell and the priority of the newly added trunking service according to a paging indication of the newly added trunking service, and determines whether to enter an RRC _ CONNECTED state to receive the newly added trunking service according to the paging indication. When the newly added cluster service is a multicast service and the UE belongs to a multicast group corresponding to the multicast service, the UE needs to enter RRC _ CONNECTED state, and receive the service after authentication.

S202: the base station configures a CORESET and a search space for each TPCCH, wherein the CORESET and the search space are positioned on BWP which broadcasts the TPCCH and are used for bearing dynamic scheduling information of the TPCCH, cluster paging parameters are configured for each TPCCH, the cluster paging parameters are used for determining a paging occasion for sending the TPCCH, and each TPCCH is also configured with a PDCP entity and an RLC entity, the PDCP entity and the RLC entity are used for processing cluster paging messages generated by the base station on an RRC layer of a cell and transmitting the processed cluster paging messages to an MAC layer of the cell through the TPCCH, and the RLC entity is a TM mode RLC entity or an UM mode RLC entity.

The cluster paging parameters configured for the TPCCH by the base station comprise: paging cycle T, paging frame PF, paging subframe Psubframe, and paging slot Ptimeslot.

Optionally, when the trunking paging is repeatedly sent multiple times in each trunking paging cycle, the trunking paging parameters further include: the cluster page is repeatedly sent for a number of times Pnumber. It will be appreciated that if Pneumber is not configured, the default Pneumber value is 1.

Optionally, when configuring the UM mode RLC entity for the TPCCH, the trunking paging parameters further include: and (4) segment indication. When the segment indication parameter is not configured, the TPCCH is not transmitted in a segmented mode, and when the segment indication parameter is 1, the TPCCH is transmitted in a segmented mode. Wherein, when TPCCH is transmitted in segments, segmentNum is used for expressing the maximum segment number of TPCCH. The base station configures a fixed value for SegmentNum, for example: if the TPCCH is transmitted in 4 segments at maximum, the base station configures segmentNum =4.

The mode that the base station determines the paging occasion for sending the TPCCH through the trunking paging parameters is as follows:

the radio frame SFN corresponding to the starting position of the cluster paging occasion in each cluster paging cycle satisfies the following formula:

SFN MOD T＝PF

in each cluster paging cycle, the starting position of the cluster paging occasion is: the sub-frame number of the radio frame SFN satisfying the above formula is Psubframe, and the time slot of the sub-frame number is Ptimeslot.

Exemplarily, when a TM mode RLC entity is configured for a TPCCH, or an UM mode RLC entity is configured for a TPCCH but a "segmentation indication" is not configured, there are Pnumber trunking paging occasions from a start position of the trunking paging occasion in each trunking paging cycle; when the UM mode RLC entity is configured for TPCCH and the segmentation indication is 1, the maximum number of paging occasions within each cluster paging cycle is: segmentNum Pnumber.

In the embodiment of the present application, each trunking paging occasion is composed of K consecutive PDCCH occasions, and each paging occasion in each trunking paging cycle is located in a search space on the CORESET configured by the base station for the TPCCH. And K is the number of beams adopted when the SS/PBCH BLOCK is sent in the current cell, and the K beams adopted when the SS/PBCH BLOCK is sent just cover the whole cell.

Exemplary values of the trunking paging cycle T are 10ms, 20ms, 40ms, 80ms, 160ms, 320ms, 640ms, or 1.28s, etc., it is to be understood that the value of the trunking paging cycle T may be determined according to practical situations, and this is not specifically limited by the embodiment of the present application. The smaller the value of the trunking paging cycle T is, the smaller the time delay established by a new trunking service is, and the smaller the time delay for the lagged-access UE to wait for answering the trunking service is. However, the smaller the value of the trunking paging cycle T, the shorter the wake-up cycle of the UE monitoring trunking paging is, and the greater the power consumption is.

In one possible implementation, the trunking paging cycle T is dynamically adjusted during the sending of trunking paging messages in the NR cell.

In order to transmit the trunking paging message as efficiently as possible under the condition of low power consumption, the embodiment of the application may dynamically adjust the trunking paging cycle T, and optionally, when a new trunking service is established, the TPCCH may be transmitted in a short paging cycle T1, and after a plurality of trunking paging cycles, the short paging cycle T1 is recovered to a long cycle T2, thereby reducing time delay and power consumption.

The RLC entity is a TM mode RLC entity or an UM mode RLC entity, and configures a PDCP entity and an RLC entity for the TPCCH, where the PDCP entity and the RLC entity are configured to process a trunking paging message generated in an RRC layer of a cell, and transmit the processed trunking paging message to an MAC layer of the cell through the TPCCH, and the implementation may be as follows:

in a possible implementation manner, when a TM mode RLC entity is configured for a TPCCH, a trunking paging message on the TPCCH is transmitted to an MAC layer through the TPCCH without segmentation and without an RLC header.

In one possible implementation, when configuring the UM mode RLC entity for the TPCCH, the RLC header is carried with the trunking paging messages on the TPCCH when they are transmitted to the MAC layer over the TPCCH. In UM mode, the cluster paging messages on the TPCCH may be segmented as needed, with each segment carrying an RLC header for transmission to the MAC layer over the TPCCH.

In the embodiment of the present application, if the trunking paging message on the TPCCH is not very long and there is no requirement for segmentation, it is more appropriate to use the TM mode RLC entity.

S203: and broadcasting configuration information of the TPCCH on the BWP sending the TPCCH through a system message, wherein the configuration information comprises CORESET adopted by the TPCCH, configuration information of a search space and configuration information of trunking paging parameters adopted by the TPCCH.

Optionally, the base station broadcasts the configuration information of the TPCCH through a system message on the BWP transmitting the TPCCH. Specifically, the TPCCH configuration information may be broadcasted by adding an SIB to the BWP broadcasting the TPCCH. Alternatively, the TPCCH configuration information may be broadcasted by an existing SIB on the BWP broadcasting the TPCCH. Optionally, the TPCCH configuration information may be broadcasted in an SIB that broadcasts BWP configuration information of the TPCCH as one of the BWP configuration information of the TPCCH to be transmitted.

S204: and transmitting the configuration information of each TPCCH to the MAC layer.

Wherein the configuration information of each TPCCH comprises: configuration information of CORESET and search space configured for TPCCH and configuration information of cluster paging parameters configured for TPCCH.

S205: and generating the cluster paging message of the current cell in the RRC layer according to the broadcasting condition of the cluster service in the current cell.

S206: and for each TPCCH, transmitting the cluster paging message generated by the RRC layer to a PDCP entity corresponding to the TPCCH, and transmitting the cluster paging message to the MAC layer through the TPCCH after the cluster paging message is processed by the PDCP entity corresponding to the TPCCH and the RLC entity corresponding to the TPCCH.

Wherein, the RLC entity is a TM mode RLC entity or a UM mode RLC entity.

S207: for each TPCCH, when a cluster paging message needs to be sent in a cluster paging cycle, a PDCCH resource and a PDSCH resource are allocated to the TPCCH by an MAC layer in each PDCCH opportunity in each paging opportunity in the paging cycle, the PDCCH resource and the PDSCH resource are respectively used for transmitting scheduling information of the TPCCH and a PDSCH special for the TPCCH, a corresponding DCI format and TB are generated by the allocated PDSCH resource, and the allocation information of the PDCCH resource, the allocation information of the PDSCH resource, the DCI format and the TB corresponding to each PDCCH opportunity are issued to a PHY layer by the MAC layer.

In a possible implementation manner, for each TPCCH, when there is a trunking paging message to be sent in a trunking paging cycle, the MAC layer allocates PDCCH resources and PDSCH resources to the TPCCH in each PDCCH opportunity in each paging opportunity in the paging cycle, and the following steps may be adopted:

and the MAC layer determines the CORESET and the search space adopted by the TPCCH and each cluster paging occasion for sending cluster paging messages on the TPCCH according to the configuration information of the TPCCH. Each cluster paging occasion includes K PDCCH occasions, and subscripts of the K PDCCH occasions are 0 to K-1.

For each PDCCH occasion in each paging occasion, a MAC layer allocates PDCCH resources and PDSCH resources for the PDCCH occasion in a CORESET and a search space adopted by the TPCCH, and generates a corresponding DCI format from the allocated PDSCH resources, wherein the DCI format is information carried on the PDCCH, the PDCCH adopts the allocated PDCCH resources for transmission, the MAC layer generates a TB from MAC SDU (received data Unit) from the TPCCH according to the allocated PDSCH resources, the TB is trunking paging messages or fragments of the trunking paging messages (when the trunking paging messages are transmitted in segments), the TB is transmitted through the PDSCH, and the PDSCH adopts the allocated PDSCH resources for transmission.

Wherein the timing relationship between the PDCCH and the PDSCH is indicated to the UE by corresponding parameters in the DCI format on the PDCCH. Exemplarily, in a PDCCH timer with index K (K =0,1, …, K-1), the base station transmits a corresponding PDCCH by using a beam with index K, and simultaneously transmits a TPCCH dedicated PDSCH corresponding to the PDCCH by using a beam with index K. The beam with index k is the beam used by the SS/PBCH BLOCK with index k.

And the MAC layer issues the allocation information of the PDCCH resources, the allocation information of the PDSCH resources, the DCI format and the TB corresponding to each PDCCH opportunity to the PHY layer, and the TB issues the PHY layer through the TPCH corresponding to the TPCCH.

The following functions are realized through the steps:

for each TPCCH, when a cluster paging message needs to be sent in a cluster paging cycle, the MAC layer allocates PDCCH resources and PDSCH resources for the TPCCH in each PDCCH opportunity in each paging opportunity in the paging cycle, and sends related information to the physical layer.

S208: for each TPCCH, aiming at each PDCCH occasion in each cluster paging occasion, the PHY layer transmits a corresponding PDCCH and a PDSCH special for the corresponding TPCCH based on the allocation information of the PDCCH resource corresponding to the PDCCH occasion, the allocation information of the PDSCH resource, the DCI format and the TB. The PDCCH is sent by adopting the allocated PDCCH resources, the CRC of the PDCCH is scrambled by TP-RNTI, the PDCCH bears the DCI format, the PDSCH special for the TPCCH is sent by adopting the allocated PDSCH resources, and the PDSCH bears the TB.

Specifically, the PHY layer may send a corresponding group paging message to the user equipment UE based on the PDCCH resource allocation information, PDSCH resource allocation information, DCI format and transport block TB corresponding to the PDCCH opportunity, in the following manner:

and in the PDCCH occasion, transmitting the PDCCH scrambled by the TP-RNTI for the CRC by adopting the PDCCH resource allocated to the occasion, wherein the PDCCH bears the corresponding DCI format.

And obtaining a TB corresponding to the PDCCH opportunity from the TPCH corresponding to the TPCCH, carrying out channel coding on the TB, and mapping the bit stream after the channel coding to the PDSCH special for the TPCCH. The channel coding method adopted by the TPCH is the same as that adopted by the PCCH.

And sending the TPCCH dedicated PDSCH by adopting the PDSCH resources allocated for the opportunity.

Optionally, a subscript of the PDCCH timing is denoted by K, and a beam K is used when the PDCCH and the PDSCH are transmitted, where K =0 to K-1. The beam k is the beam used by the SS/PBCH BLOCK with index k.

For each TPCCH, the processing process of the PDCCH carrying the scheduling information of the TPCCH on the PHY layer is the same as the processing process of the PDCCH carrying the scheduling information of the common service. However, there are steps where the TPCCH-specific PDCCH employs parameters specific to the TPCCH.

The method comprises the following specific steps:

the search space employed by TPCCH is a common type of search space that may share the same CORESET with other search spaces.

In one possible implementation, when performing PDCCH bit scrambling, the TPCCH uses a dedicated parameter, and exemplarily, the PDCCH bit scrambling is performed according to the following formula:

c _init ＝(n _RNTI ·2 ¹⁶ +n _ID )mod2 ³¹

wherein,

a physical layer cell ID of a cell; n is _RNTI ＝TP-RNTI。

In one possible implementation, when initializing the pseudo-random sequence generator, the TPCCH uses dedicated parameters, and exemplarily, the formula for initializing the pseudo-random sequence generator is as follows:

wherein,

for the number of symbols included in one slot,

the index of a slot within a radio frame when the SCS parameter for the NR cell is u, l is the index of a symbol within a slot,

and for each TPCCH, the processing procedure of the PDSCH special for the TPCCH on the PHY layer is the same as the processing procedure of the PDSCH carrying the common service. However, in some steps, parameters specific to the TPCCH are used for the TPCCH-specific PDSCH, which are as follows:

only one TB is carried on the TPCCH dedicated PDSCH.

The TPCCH-dedicated PDSCH employs Quadrature Phase Shift Keying (QPSK).

The PDSCH special for TPCCH is sent by adopting single-layer mapping and a single antenna port.

And a time domain resource allocation table adopted by the TPCCH dedicated PDSCH in the time domain resource allocation is the same as that adopted by the PCCH dedicated PDSCH.

The MCS table adopted by the TPCCH dedicated PDSCH is the same as that adopted by the PCCH dedicated PDSCH.

When the PDSCH special for TPCCH is subjected to bit scrambling, c is calculated according to the following formula _init And then, adopting TPCCH special parameters:

c _init ＝n _RNTI ·2 ¹⁵ +q·2 ¹⁴ +n _ID

wherein n is _RNTI ＝TP-RNTI，

S209: and the UE receives the TPCCH related system message on a BWP according to the own RF capability and the requirement of receiving the trunking service so as to obtain the configuration information of the TPCCH sent on the BWP. And the UE monitors the PDCCH scrambled by the TP-RNTI for the CRC in the corresponding search space on the corresponding COREST on the BWP according to the CORESET in the TPCCH configuration information and the search space configuration information. And when the corresponding PDCCH is monitored, receiving the TPCCH dedicated PDSCH according to the DCI format on the PDCCH, and acquiring the trunking paging message from the PDSCH.

Specifically, the UE monitors the PDCCH scrambled by the TP-RNTI for the CRC in the corresponding search space on the corresponding CORESET from the cluster paging start position in each cluster paging cycle according to the configuration information of the cluster paging parameter in one piece of TPCCH configuration information, and receives the dedicated PDSCH for the TPCCH according to the DCI format on the PDCCH when the corresponding PDCCH is monitored, and obtains the cluster paging message from the PDSCH.

In the speech from the BTrunC protocol to the 5G, the embodiment of the present application provides a method for sending and receiving a trunking paging message based on the 5G, the trunking paging message is carried by a TPCCH, the TPCCH can be sent on each corresponding BWP of an NR cell, and a UE obtains the trunking paging message carried by the UE by receiving the corresponding TPCCH.

Corresponding to the method for sending and receiving trunking paging messages in an NR cell in the foregoing embodiment, fig. 3 is a schematic structural diagram of a system for sending and receiving trunking paging messages in an NR cell provided in the embodiment of the present application. For convenience of explanation, only portions related to the embodiments of the present application are shown. Fig. 3 is a schematic structural diagram of a system for sending and receiving a trunking paging message in an NR cell according to an embodiment of the present application.

As shown in fig. 3, the system 3 for transmitting and receiving a trunking paging message in an NR cell includes: a transmitting device 30 and a receiving device 31.

The transmitting apparatus 30 is located on the side of the base station gNB, and includes: a first configuration module 301, a second configuration module 302, a broadcast module 303, a first transmission module 304, a generation module 305, a second transmission module 306, a distribution module 307, and a transceiver module 308.

The receiving apparatus 31 is located on the UE side, and includes: a receiving module 309.

The sending means of the trunking paging message in the NR cell may be a chip or an integrated circuit that implements the functionality of the base station gNB. It should be noted here that the division of the first configuration module 301, the second configuration module 302, the broadcast module 303, the first transmission module 304, the generation module 305, the second transmission module 306, the allocation module 307, and the transceiver module 308 is only a division of logical functions, and these modules may be integrated physically or may be independent of each other.

The receiving means of the trunking paging message in the NR cell may be a chip or an integrated circuit implementing the UE functionality.

Wherein the transmitting device implements the following functions:

the first configuration module 301 is configured to determine, at the RRC layer of the NR cell, a plurality of BWPs for which a TPCCH needs to be configured, and configure a unique TPCCH for each BWP.

The second configuration module 302 is configured to configure, by the base station, a CORESET and a search space for each TPCCH, where the CORESET and the search space are located on a BWP broadcasting the TPCCH and are used to carry dynamic scheduling information of the TPCCH, configure, for each TPCCH, a cluster paging parameter, where the cluster paging parameter is used to determine a paging occasion for sending the TPCCH, and also configure, for each TPCCH, a PDCP entity and an RLC entity, where the PDCP entity and the RLC entity are used to process a cluster paging message generated by the base station on an RRC layer of a cell and transmit the processed cluster paging message to an MAC layer of the cell through the TPCCH, and the RLC entity is a TM mode RLC entity or an UM mode RLC entity.

The broadcasting module 303 is configured to broadcast the configuration information of the TPCCH.

The first transmission module 304 is configured to transmit the configuration information of each TPCCH to the MAC layer.

The generating module 305 is configured to generate a trunking paging message of the current cell at the RRC layer according to a broadcast condition of the trunking service in the current cell.

The second transmission module 306 is configured to transmit, to each TPCCH, the cluster paging message generated by the RRC layer to the PDCP entity corresponding to the TPCCH, and transmit the cluster paging message to the MAC layer after processing by the PDCP entity corresponding to the TPCCH and the RLC entity corresponding to the TPCCH.

The distribution module 307 is configured to: for each TPCCH, when a cluster paging message needs to be sent in a cluster paging cycle, a PDCCH resource and a PDSCH resource are allocated to the TPCCH by an MAC layer in each PDCCH opportunity in each paging opportunity in the paging cycle, the PDCCH resource and the PDSCH resource are used for transmitting scheduling information of the TPCCH and a PDSCH special for the TPCCH, a corresponding DCI format and TB are generated by the allocated PDSCH resource, and the allocation information of the PDCCH resource, the allocation information of the PDSCH resource, the DCI format and the TB corresponding to each PDCCH opportunity are issued to a PHY layer by the MAC layer.

The transceiver module 308 is configured to, for each PDCCH in each cluster paging occasion, for each PDCCH occasion in each cluster paging occasion, the PHY layer transmits a corresponding PDCCH and a corresponding PDSCH dedicated to the TPCCH based on allocation information of PDCCH resources corresponding to the PDCCH occasion, allocation information of PDSCH resources, a DCI format, and a TB, where the PDCCH is transmitted using the allocated PDCCH resources, the CRC of the PDCCH is scrambled with a TP-RNTI, the PDCCH carries the DCI format, the PDSCH dedicated to the TPCCH is transmitted using the allocated PDSCH resources, and the PDSCH carries the TB.

Wherein the receiving device implements the following functions:

the receiving module 309 is located at the UE side, and is configured to receive, by the UE, a system message related to the TPCCH on a BWP according to the RF capability of the UE and a requirement of receiving a trunking service, so as to obtain configuration information of the TPCCH sent on the BWP, where the UE monitors, on the BWP, a PDCCH scrambled by a TP-RNTI for a CRC in a corresponding search space on a corresponding COREST according to configuration information of a CORESET and a search space in the configuration information of the TPCCH, and when the corresponding PDCCH is monitored, receives a dedicated PDSCH for the TPCCH according to a DCI format on the PDCCH, and obtains a trunking paging message from the PDSCH.

The apparatus provided in the embodiment of the present application may be configured to implement the technical solution of the method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again in the embodiment of the present application.

Optionally, fig. 4 schematically provides a possible basic hardware architecture of the sending device of the trunking paging message in the NR cell of the present application.

Referring to fig. 4, a transmitting device 400 of a trunking paging message in an nr cell includes at least one processor 401, memory 402, a communication interface 403, and a bus 404. The sending device is located in or is a base station gNB. The present application is not particularly limited.

In this application, the processor 401 in the device 400 for sending a trunking paging message in an NR cell executes computer instructions in the memory 402, so that the device 400 for sending a trunking paging message in an NR cell implements the method for sending a trunking paging message in an NR cell provided in this application.

The number of the processors 401 may be one or more, and fig. 4 only illustrates one of the processors 401. Alternatively, the processor 401 may be a Digital Signal Processor (DSP), a Central Processing Unit (CPU), or a Graphics Processing Unit (GPU). When there are multiple processors 401, the multiple processors 401 may be of different types, or may be the same. Alternatively, the plurality of processors 401 may also be integrated as a multi-core processor.

Memory 402 stores computer instructions and data; the memory 402 may store instructions to implement the various steps included in the method of the transmitting part in the above-described method of transmitting and receiving a trunking paging message in an NR cell provided in the present application. The memory 402 may be any one or any combination of the following storage media: nonvolatile memory (e.g., read Only Memory (ROM), solid State Disk (SSD), hard disk (HDD), optical disk), volatile memory.

The communication interface 403 may provide information input/output for the at least one processor 401. Any one or any combination of the following devices may also be included: a network interface (such as an ethernet interface), a wireless network card, and the like.

Optionally, the communication interface 403 may also be used for the sending device 400 of the trunking paging message in the NR cell to perform data communication with other computing devices or terminals.

Further alternatively, fig. 4 shows bus 404 as a thick line. The bus 404 may connect the processor 401 with the memory 402 and the communication interface 403. Thus, via bus 404, processor 401 may access memory 402 and may also interact with other computing devices or terminals using communication interface 403.

From the perspective of logical functional division, for example, as shown in fig. 4, the memory 402 may include a first configuration module 301, a second configuration module 302, a broadcast module 303, a first transmission module 304, a generation module 305, a second transmission module 306, an allocation module 307, and a transceiver module 308. The inclusion herein merely refers to that the instructions stored in the memory, when executed, may implement the functions of the first configuration module, the second configuration module, the broadcast module, the first transmission module, the generation module, the second transmission module, the distribution module and the transceiving module, respectively, without limiting to a physical structure.

In addition, the sending device of the trunking paging message in the NR cell may be implemented by software as shown in fig. 4, or may be implemented by hardware as a hardware module or as a circuit unit.

Optionally, fig. 5 schematically provides a possible basic hardware architecture of the receiving device of the trunking paging message in the NR cell of the present application. The receiving device is located within or is a UE. The present application is not particularly limited.

Referring to fig. 5, a receiving device 500 of a trunked paging message in an nr cell includes at least one processor 501, memory 502, a communication interface 503 and a bus 504.

In this application, the processor 501 in the receiving device 500 of the trunking paging message in the NR cell executes the computer instructions in the memory 502, so that the receiving device 500 of the trunking paging message in the NR cell implements the method of the receiving part in the above-mentioned method for transmitting and receiving the trunking paging message in the NR cell provided by this application.

From the perspective of logical functional partitioning, illustratively, as shown in fig. 5, a receiving module 309 may be included in the memory 502. The inclusion herein merely relates to that instructions stored in the memory may, when executed, implement the functionality of the receiving module, respectively, and is not limited to a physical structure.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or in the form of hardware plus a software functional unit.

Claims

1. A method for sending and receiving trunking paging messages in a new radio access (NR) cell is characterized by comprising the following steps:

determining a plurality of bandwidth segmentation BWPs needing to configure a cluster paging control channel TPCCH at a radio resource control RRC layer of an NR cell, and configuring a unique TPCCH for each BWP;

a base station configures a CORESET and a search space for each TPCCH, wherein the CORESET and the search space are positioned on BWP broadcasting the TPCCH and are used for bearing dynamic scheduling information of the TPCCH, cluster paging parameters are configured for each TPCCH, the cluster paging parameters are used for determining the paging occasion for sending the TPCCH, and a packet data convergence protocol PDCP entity and a radio link layer control RLC entity are also configured for each TPCCH, the PDCP entity and the RLC entity are used for processing cluster paging messages generated by the base station on an RRC layer of a cell and transmitting the processed cluster paging messages to a media access control MAC layer of the cell through the TPCCH, and the RLC entity is a TM mode RLC entity or an UM mode RLC entity;

broadcasting configuration information of the TPCCH on BWP (broadband remote access point) sending the TPCCH through system information, wherein the configuration information comprises the CORESET adopted by the TPCCH, the configuration information of the search space and the configuration information of the cluster paging parameters adopted by the TPCCH;

transmitting the configuration information of each TPCCH to an MAC layer;

generating a trunking paging message of the current cell in an RRC layer according to the broadcasting condition of the trunking service in the current cell;

for each TPCCH, transmitting a trunking paging message generated by an RRC layer to a PDCP entity corresponding to the TPCCH, wherein the trunking paging message is processed by the PDCP entity corresponding to the TPCCH and an RLC entity corresponding to the TPCCH and transmitted to an MAC layer through the TPCCH;

for each TPCCH, when a cluster paging message needs to be sent in a cluster paging cycle, an MAC layer allocates Physical Downlink Control Channel (PDCCH) resources and Physical Downlink Shared Channel (PDSCH) resources for the TPCCH in each PDCCH time in each paging time in the paging cycle, the PDCCH resources and the PDSCH resources are respectively used for transmitting scheduling information of the TPCCH and a PDSCH special for the TPCCH, a corresponding Downlink Control Information (DCI) format and a Transmission Block (TB) are generated by the allocated PDSCH resources, and the MAC layer issues the allocation information of the PDCCH resources, the allocation information of the PDSCH resources, the DCI format and the TB corresponding to each PDCCH time to a physical PHY layer;

user Equipment (UE) receives a system message related to a TPCCH on a BWP according to the Radio Frequency (RF) capability of the UE and the requirement of receiving trunking services so as to obtain configuration information of the TPCCH sent on the BWP, monitors a PDCCH scrambled by a TP-RNTI (transport protocol-radio network temporary identifier) for Cyclic Redundancy Check (CRC) in a corresponding search space on a corresponding COREST on the BWP according to the CORESET and the configuration information of the search space in the configuration information of the TPCCH, receives a PDSCH (physical downlink shared channel) special PDSCH according to a DCI (downlink control channel) format on the PDCCH and obtains trunking paging messages from the PDSCH when monitoring the corresponding PDCCH.

2. The method of claim 1, wherein the trunking paging message comprises at least one of configuration information of each trunking service broadcasted in the current cell and a paging indicator of each newly added trunking service in the current cell;

the UE can select to receive the cluster service with high priority according to the priority of the cluster service and can receive the corresponding cluster service according to the air interface resource configuration information of the cluster service;

the paging indication of a newly added trunking service at least comprises the TMGI and the priority of the paged trunking service, the TMGI of a trunking service is used for identifying the trunking service in an application layer, the UE determines the newly added trunking service of a current cell and the priority of the newly added trunking service according to the paging indication of the newly added trunking service, and the UE determines whether to enter an RRC _ CONNECTED state to receive the newly added trunking service according to the paging indication.

3. The method of claim 1, wherein determining, at the RRC layer of the NR cell, a plurality of BWPs for which a TPCCH needs to be configured, and wherein configuring a unique TPCCH for each BWP comprises:

4. The method of claim 1, wherein the determining, at the RRC layer of the NR cell, a plurality of BWPs for which a TPCCH needs to be configured, and wherein configuring a unique TPCCH for each BWP comprises:

5. The method of claim 1, wherein the determining, at the RRC layer of the NR cell, a plurality of BWPs for which a TPCCH needs to be configured, and wherein configuring a unique TPCCH for each BWP comprises:

determining the BWP of the broadcast ordinary service on the downlink bandwidth, configuring a unique TPCCH on the BWP for each BWP of the broadcast ordinary service, and transmitting the TPCCH on the BWP and carrying the trunking paging message of the current cell.

6. The method of claim 1, wherein the cluster paging parameters comprise a paging cycle T, a paging frame PF, a paging subframe Psubframe, and a paging slot Ptimeslot.

7. The method of claim 6, wherein the cluster paging parameters used to determine the paging occasion to transmit the TPCCH comprise:

SFN MOD T＝PF

8. The method of claim 7, wherein when configuring the UM mode RLC entity for the TPCCH, the cluster paging parameters further comprise: the segment indication means that the TPCCH is not transmitted in a segmented manner when the segment indication parameter is not configured, and means that the TPCCH is transmitted in a segmented manner when the segment indication is 1, wherein the segmentNum is used for representing the maximum segment number of the TPCCH when the TPCCH is transmitted in a segmented manner, and the base station configures a fixed value for the segmentNum;

wherein, when configuring TM mode RLC entity for TPCCH, or configuring UM mode RLC entity for TPCCH but not configuring segmentation indication, in each cluster paging cycle, starting from the initial position of cluster paging occasion, there are Pneumber cluster paging occasions; when the UM mode RLC entity is configured for TPCCH and the segmentation indication is 1, the maximum number of paging occasions within each cluster paging cycle is: segmentNum Pnumber, which is the number of times a trunking paging message is repeatedly sent.

9. The method of claim 1, wherein each TPCCH is configured with a PDCP entity and an RLC entity, and the PDCP entity and the RLC entity are configured to process a trunking paging message generated by a base station in an RRC layer of a cell, and specifically include:

when the RLC entity is an UM mode RLC entity, the cluster paging message carries an RLC header when being transmitted to the MAC layer via the TPCCH, and the cluster paging message may be segmented, where each segment carries an RLC header when being segmented.

10. The method of claim 1, wherein the configuration information comprises: configuration information of CORESET, search space and cluster paging parameters adopted by the TPCCH;

correspondingly, the configuration information of the broadcast TPCCH includes:

broadcasting configuration information of the TPCCH on a BWP transmitting the TPCCH through a system message:

broadcasting the configuration information of the TPCCH through the existing SIB on the BWP broadcasting the TPCCH or,

broadcasting the configuration information of the TPCCH on the BWP broadcasting the TPCCH through a newly added SIB;

11. The method of claim 1, wherein for each TPCCH, when there is a trunking paging message to be sent in a trunking paging cycle, the MAC layer allocates PDCCH resources and PDSCH resources to the TPCCH in each PDCCH opportunity in each paging opportunity in the paging cycle, the PDCCH resources and PDSCH resources are used for transmitting scheduling information of the TPCCH and a PDSCH dedicated to the TPCCH, and the allocated PDSCH resources generate corresponding DCI formats and TBs, which specifically includes:

12. The method of claim 7, wherein the method for the PHY layer to transmit the corresponding PDCCH and the corresponding PDSCH dedicated to the TPCCH based on the PDCCH resource allocation information, PDSCH resource allocation information, DCI format and TB corresponding to the PDCCH occasion comprises:

and K represents the subscript of the PDCCH occasion in each paging occasion, a beam K is adopted when the PDCCH and the PDSCH are transmitted, K =0 to K-1, and the beam K is a beam adopted by SS/PBCH BLOCK with the subscript of K, wherein K is the number of beams adopted when SS/PBCH BLOCK is transmitted in the current cell, and K beams adopted when SS/PBCH BLOCK is transmitted just cover the whole cell.

13. The method of claim 7, wherein the PHY layer transmits a corresponding PDCCH and a corresponding PDSCH dedicated to the TPCCH based on the allocation information of the PDCCH resources, the allocation information of the PDSCH resources, the DCI format and the TB corresponding to the PDCCH opportunity, the PDCCH is transmitted using the allocated PDCCH resources, the CRC of the PDCCH is scrambled by a TP-RNTI, the DCI format is carried on the PDCCH, the PDSCH dedicated to the TPCCH is transmitted using the allocated PDSCH resources, and the TB is carried on the PDSCH, further comprising:

the search space adopted by the TPCCH is a common type search space, the search space can share the same CORESET with other search spaces, when PDCCH bit scrambling is executed, the TPCCH adopts special parameters, and a formula for executing the PDCCH bit scrambling is as follows:

c _init ＝(n _RNTI ·2 ¹⁶ +n _ID )mod2 ³¹

wherein,

is the physical layer cell ID, n of a cell _RNTI ＝TP-RNTI；

When initializing the pseudo-random sequence generator, the TPCCH adopts special parameters, and the formula for initializing the pseudo-random sequence generator is as follows:

wherein,

for the number of symbols included in one slot,

14. the method of claim 7, further comprising:

for each TPCCH, the processing process of the PDSCH special for the TPCCH in the PHY layer is the same as the processing process of the PDSCH carrying the common service, and the PDSCH special for the TPCCH adopts parameters special for the TPCCH in some steps, which are as follows:

only one TB is carried on the PDSCH special for the TPCCH;

the PDSCH special for TPCCH adopts quadrature phase shift keying QPSK;

the PDSCH special for TPCCH is sent by adopting single-layer mapping and a single antenna port;

a time domain resource allocation table adopted by the TPCCH special PDSCH in the time domain resource allocation is the same as that adopted by the PCCH special PDSCH;

the MCS table adopted by the PDSCH special for the TPCCH is the same as the MCS table adopted by the PDSCH special for the PCCH;

c _init ＝n _RNTI ·2 ¹⁵ +q·2 ¹⁴ +n _ID

wherein n is _RNTI ＝TP-RNTI，

15. The method of claim 1, wherein the determining, at the RRC layer of the NR cell, a plurality of BWPs for which the TPCCH needs to be configured, and wherein the configuring the unique TPCCH for each BWP comprises:

allocating a fixed TP-RNTI for the TPCCH;

16. A system for sending and receiving a trunking paging message in an NR cell, comprising: a transmitting device and a receiving device;

the transmission apparatus includes:

the second transmission module is used for transmitting the cluster paging message generated by the RRC layer to the PDCP entity corresponding to the TPCCH for each TPCCH, and the cluster paging message is transmitted to the MAC layer through the TPCCH after being processed by the PDCP entity corresponding to the TPCCH and the RLC entity corresponding to the TPCCH;

the allocation module is used for allocating PDCCH resources and PDSCH resources for each TPCCH in each PDCCH opportunity in each paging opportunity in the paging cycle by the MAC layer when cluster paging messages need to be sent in the cluster paging cycle, wherein the PDCCH resources and the PDSCH resources are used for transmitting scheduling information of the TPCCH and a PDSCH special for the TPCCH, a corresponding DCI format and TB are generated by the allocated PDSCH resources, and the allocation information of the PDCCH resources, the allocation information of the PDSCH resources, the DCI format and the TB corresponding to each PDCCH opportunity are issued to the PHY layer by the MAC layer;

the receiving and transmitting module is used for transmitting a corresponding PDCCH and a corresponding PDSCH special for the TPCCH for each PDCCH occasion in each cluster paging occasion on the basis of the allocation information of PDCCH resources, the allocation information of PDSCH resources, a DCI format and TB corresponding to the PDCCH occasion by the PHY layer, wherein the PDCCH is transmitted by adopting the allocated PDCCH resources, the CRC of the PDCCH is scrambled by TP-RNTI, the DCI format is borne on the PDCCH, the PDSCH special for the TPCCH is transmitted by adopting the allocated PDSCH resources, and the TB is borne on the PDSCH;

the receiving apparatus includes:

a receiving module, configured to receive, on a BWP, a system message related to a TPCCH according to an RF capability of the UE and a requirement of receiving a trunking service, so as to obtain configuration information of the TPCCH sent on the BWP, where the UE monitors, on the BWP, a PDCCH scrambled by a TP-RNTI for a CRC in a corresponding search space on a corresponding COREST according to configuration information of a CORESET and the search space in the configuration information of the TPCCH, and when the corresponding PDCCH is monitored, receives a dedicated PDSCH for the TPCCH according to a DCI format on the PDCCH, and obtains a trunking paging message from the PDSCH.

17. A device for transmitting a trunking paging message in an NR cell, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method of:

determining a plurality of BWPs needing to configure TPCCH at an RRC layer of an NR cell, and configuring a unique TPCCH for each BWP;

a base station configures a CORESET and a search space for each TPCCH, wherein the CORESET and the search space are positioned on BWP broadcasting the TPCCH and are used for bearing dynamic scheduling information of the TPCCH, cluster paging parameters are configured for each TPCCH, the cluster paging parameters are used for determining paging occasion for sending the TPCCH, and each TPCCH is also configured with a PDCP entity and an RLC entity, the PDCP entity and the RLC entity are used for processing cluster paging messages generated by the base station on an RRC layer of a cell and transmitting the processed cluster paging messages to an MAC layer of the cell through the TPCCH, and the RLC entity is a TM mode RLC entity or an UM mode RLC entity;

transmitting the configuration information of each TPCCH to an MAC layer;

for each TPCCH, transmitting cluster paging messages generated by an RRC layer to a PDCP entity corresponding to the TPCCH, wherein the cluster paging messages are processed by the PDCP entity corresponding to the TPCCH and an RLC entity corresponding to the TPCCH and transmitted to an MAC layer through the TPCCH;

for each TPCCH, when a cluster paging message needs to be sent in a cluster paging cycle, a physical layer (MAC) layer allocates Physical Downlink Control Channel (PDCCH) resources and Physical Downlink Shared Channel (PDSCH) resources for the TPCCH in each PDCCH opportunity in each paging opportunity in the paging cycle, the PDCCH resources and the PDSCH resources are respectively used for transmitting scheduling information of the TPCCH and a PDSCH special for the TPCCH, corresponding Downlink Control Information (DCI) formats and Transport Blocks (TB) are generated by the allocated PDSCH resources, and the MAC layer issues the allocation information of the PDCCH resources, the allocation information of the PDSCH resources, the DCI formats and the TB corresponding to each PDCCH opportunity to a physical layer;

the configuration information of the TPCCH is used for the UE to obtain when receiving the system information related to the TPCCH on a BWP according to the self RF capability and the requirement of receiving the trunking service, the BWP monitors the PDCCH scrambled by TP-RNTI for CRC in the corresponding search space on the COREST according to the configuration information of CORESET and the search space in the configuration information of the TPCCH, and when the corresponding PDCCH is monitored, the PDSCH special PDSCH is received according to the DCI format on the PDCCH, and the trunking paging message is obtained from the PDSCH.

18. A receiving apparatus of a trunking paging message in an NR cell, comprising: at least one processor and a memory;

the memory stores computer-executable instructions;

according to the RF capability and the requirement of receiving the trunking service, receiving a system message related to the TPCCH on a BWP to obtain configuration information of the TPCCH sent on the BWP, monitoring a PDCCH scrambled by a TP-RNTI for CRC in a corresponding search space on a corresponding COREST by UE (user equipment) on the BWP according to the CORESET (core set entry) in the configuration information of the TPCCH and the configuration information of the search space, receiving a PDSCH (physical downlink shared channel) special for the TPCCH according to a DCI (downlink control information) format on the PDCCH and obtaining a trunking paging message from the PDSCH when monitoring the corresponding PDCCH;

wherein, the configuration information of TPCCH is sent by the base station when sending the configuration information of TPCCH on a BWP, and specifically includes: a base station determines a plurality of BWPs needing to be configured with TPCCH on an RRC layer of an NR cell, and configures unique TPCCH for each BWP; configuring a CORESET and a search space for each TPCCH through a base station, wherein the CORESET and the search space are positioned on BWP broadcasting the TPCCH and are used for bearing dynamic scheduling information of the TPCCH, configuring cluster paging parameters for each TPCCH, the cluster paging parameters are used for determining paging occasion for sending the TPCCH, and configuring a PDCP entity and an RLC entity for each TPCCH, the PDCP entity and the RLC entity are used for processing cluster paging messages generated by the base station on an RRC layer of a cell and transmitting the processed cluster paging messages to an MAC layer of the cell through the TPCCH, and the RLC entity is a TM mode RLC entity or an UM mode RLC entity; broadcasting configuration information of the TPCCH on BWP (broadband remote access point) sending the TPCCH through system information, wherein the configuration information comprises the CORESET adopted by the TPCCH, the configuration information of the search space and the configuration information of the cluster paging parameters adopted by the TPCCH; transmitting the configuration information of each TPCCH to an MAC layer; generating a trunking paging message of the current cell in an RRC layer according to the broadcasting condition of the trunking service in the current cell; for each TPCCH, transmitting cluster paging messages generated by an RRC layer to a PDCP entity corresponding to the TPCCH, wherein the cluster paging messages are processed by the PDCP entity corresponding to the TPCCH and an RLC entity corresponding to the TPCCH and transmitted to an MAC layer through the TPCCH; for each TPCCH, when a cluster paging message needs to be sent in a cluster paging cycle, a physical layer (MAC) layer allocates Physical Downlink Control Channel (PDCCH) resources and Physical Downlink Shared Channel (PDSCH) resources for the TPCCH in each PDCCH opportunity in each paging opportunity in the paging cycle, the PDCCH resources and the PDSCH resources are respectively used for transmitting scheduling information of the TPCCH and a PDSCH special for the TPCCH, corresponding Downlink Control Information (DCI) formats and Transport Blocks (TB) are generated by the allocated PDSCH resources, and the MAC layer issues the allocation information of the PDCCH resources, the allocation information of the PDSCH resources, the DCI formats and the TB corresponding to each PDCCH opportunity to a physical layer; for each TPCCH, aiming at each PDCCH occasion in each cluster paging occasion, a PHY layer sends a corresponding PDCCH and a corresponding PDSCH special for the TPCCH based on the allocation information of PDCCH resources, the allocation information of PDSCH resources, a DCI format and a TB corresponding to the PDCCH occasion, the PDCCH adopts the allocated PDCCH resources to send, the CRC of the PDCCH is scrambled by TP-RNTI, the PDCCH bears the DCI format, the PDSCH special for the TPCCH adopts the allocated PDSCH resources to send, and the PDSCH bears the TB.

19. A computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, implement the method for transmitting and receiving a trunking paging message in an NR cell according to any one of claims 1 to 15.