WO2013117129A1

WO2013117129A1 - Method and device for transmitting group call session information

Info

Publication number: WO2013117129A1
Application number: PCT/CN2013/070847
Authority: WO
Inventors: 焦斌; 谌丽; 艾明; 徐晖
Original assignee: 电信科学技术研究院
Priority date: 2012-02-07
Filing date: 2013-01-22
Publication date: 2013-08-15
Also published as: CN102547595B; CN102547595A

Abstract

Disclosed are a method and a device for transmitting group call session information. The method comprises: in a beginning process of a group call session, a base station device allocating a group call temporary identifier to a called group; and the base station device sending the group call temporary identifier and a non-access-stratum (NAS) layer group identifier corresponding to the called group. In embodiments of the present invention, by fully utilizing the advantage of a high bandwidth performance of an LTE system, data transmission from a single cell point to a plurality of points can be implemented, and the demand on a high utilization ratio of an air interface resource can be met under a cluster communication system, so as to increase the utilization ratio of the air interface resource.

Description

Method and device for transmitting group call session information This application claims to be submitted to the Chinese Patent Office on February 7, 2012, the application number is 201210026347.4, and the invention name is "a method and device for transmitting group call session information". Priority of the application, the entire contents of which are incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and a device for transmitting group call session information. BACKGROUND OF THE INVENTION A trunking communication system communicates in a half-duplex manner, and controls the acquisition and release of a channel through a PTT (Push To Talk) key during operation, and has a high channel utilization rate and fast call connection. At present, the trunking communication system has been developed into a broadband trunking communication system stage, relying on advanced wireless transmission technologies (such as LTE (Long Term Evolution)) to realize the leap of various functions and technologies of the trunking communication system. The broadband trunking communication system supports diversified service types, diversified transmission modes, large bandwidth, and high transmission rate. The supported services include voice, data, and video. The transmission modes include unicast, group call, and multicast. Unicast works in full-duplex mode, and group call and multicast work in half-duplex mode. The LTE-based broadband trunking communication system refers to the various requirements and functions of the cluster based on the LTE technology. The LTE adopts the Orthogonal Frequency Division Multiplexing (OFDM) technology, and the scheduling mode is different users. Allocating physical transmission resources, the resource allocation granularity can reach one PRB (Physical Resource Block), that is, part of subcarrier resources of one subframe (1ms), and 20MHz LTE The number of PRBs of one subframe under the system is 100.

In the prior art, the LTE system has multiple scheduling transmission modes, and the most basic one is the dynamic scheduling mode, that is, one PDCCH (Physical Downlink Control Channel) signaling is used for one UE (User Equipment). A part of resources of one subframe are scheduled, and each transmission needs to be scheduled by using one PDCCH signaling.

In carrying out the process of the present invention, the inventors have found that at least the following problems exist in the prior art:

The LTE system only supports single-cell point-to-point transmission, and in a trunking communication system, the number of called UEs in a specific group in a cell may be very large. If a single-cell point-to-point transmission mode is adopted, it is necessary to The called UE allocates dedicated transmission resources, thereby causing waste of air interface resources. Summary of the invention

The embodiment of the invention provides a method and a device for transmitting group call session information, so as to improve utilization of air interface resources.

In order to achieve the above object, an embodiment of the present invention provides a method for transmitting group call session information, including:

During the start of the group call session, the base station device allocates a group call temporary identifier to the called group. The base station device sends the group call temporary identifier and the non-access stratum NAS layer group identifier corresponding to the called group.

The embodiment of the invention provides a method for transmitting group call session information, including: During the start of the group call session, the user equipment receives the group call temporary identifier corresponding to the called group and the non-access layer NAS layer group identifier; when the NAS layer group identifier is the same as the NAS layer group identifier saved by itself, the The configuration of the control plane radio bearer corresponding to the logical channel TCCH of the user equipment, and the configuration of the data plane radio bearer corresponding to the logical channel TTCH. An embodiment of the present invention provides a base station device, including: an allocating module, configured to allocate a temporary call identifier for a called group during a start of a group call session; and a sending module, configured to send during a start of the group call session The group call temporary identifier and the non-access stratum NAS layer group identifier corresponding to the called group. An embodiment of the present invention provides a user equipment, including: a receiving module, configured to receive a group call temporary identifier corresponding to a called group and a non-access layer NAS layer group identifier during a group call session start process; When the NAS layer group identifier is the same as the NAS layer group identifier saved by itself, the configuration of the control plane radio bearer corresponding to the logical channel TCCH and the configuration of the data plane radio bearer corresponding to the logical channel TTCH are performed. Compared with the prior art, the embodiment of the present invention has at least the following advantages: In the embodiment of the present invention, the high-bandwidth performance advantage of the LTE system can be fully utilized to implement point-to-multipoint data transmission in a single cell, and the cluster communication system is satisfied. The demand for high-altitude resource utilization is to improve the utilization of air interface resources. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a logical channel TCCH, a logical channel TTCH and a lower in the first embodiment of the present invention; Schematic diagram of mapping relationship between row transmission channels;

2 is a schematic diagram of a protocol stack layer of a UE in the first embodiment of the present invention;

3 is a schematic flowchart of a method for transmitting group call session information in a process of starting a group call session according to Embodiment 1 of the present invention;

4 is a schematic flowchart of a method for transmitting group call session information in a process of ending a group call session according to Embodiment 1 of the present invention;

5 is a schematic flowchart of a method for transmitting group call session information in a process of performing a current group call session according to Embodiment 1 of the present invention;

FIG. 6 is a schematic structural diagram of a base station device according to Embodiment 2 of the present invention; FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 3 of the present invention. detailed description

The technical solutions in the present invention are clearly and completely described in the following with reference to the accompanying drawings in which: FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

Embodiment 1

In the cluster communication application scenario, in order to improve the utilization of the air interface resources and fully utilize the high bandwidth performance advantages of the LTE system, the embodiment of the present invention provides a method for implementing point-to-multipoint data transmission in a single cell based on the LTE system. Trunking based on TD-LTE (Time Division-Long Time Evolution) technology The signaling system (through the enhancement of the TD-LTE system to meet the requirements of the trunking service for the bearer network), when the air interface uses the single-cell point-to-multipoint transmission data, how does the base station device configure the configuration information of the group call session to the target UE The problem, and how the target UE receives downlink control and user plane data based on the configuration information.

In the embodiment of the present invention, in order to realize single-cell point-to-multipoint data transmission, a logical channel TCCH and a logical channel TTCH are introduced on the basis of the LTE system; as shown in FIG. 1, the logical channel TCCH, the logical channel TTCH, and the downlink A schematic diagram of a mapping relationship between the transmission channels. Specifically, the logical channel TCCH is a downlink channel for transmitting user plane data for the group UE, and is specifically used for transmitting downlink control information (specifically, for carrying RRC (Radio Resource Control, Radio resource control (layer control signaling), the logical channel TTCH is a downlink channel for transmitting control information to the group UE, and is specifically used for transmitting downlink user plane data.

Based on the logical channel TCCH and the logical channel TTCH, the first embodiment of the present invention provides a method for transmitting group call session information, in the process of starting a group call session, ending a group call session, and performing a current group call session (such as a call right). The notification process of the indication information is used to implement the transmission of the group call session information. In the process of starting the group call session, the process includes: the base station device sends configuration information for receiving the group call downlink reception to the UE through the air interface, and the UE receives the configuration information. After the group call session is completed, the base station device notifies the UE to end the group call session through the air interface, and the processing process of the UE itself; during the current group call session, the base station device sends the current group call through the air interface. The session related call right indication information is notified to the UE, and the UE's processing procedure.

In order to facilitate understanding of the start process of the group call session, the end of the group call session, and the current group call For the specific operation of the UE during the session, the internal protocol stack layer of the UE needs to be described. As shown in FIG. 2, it is a schematic diagram of the internal protocol stack layer of the UE, which includes a NAS layer (Non-Access-Stratum). The RRC layer and the physical layer; the inter-layer inter-layer information exchange between the physical layer and the RRC layer, and the inter-layer inter-layer information interaction between the RRC layer and the NAS layer.

As shown in FIG. 3, a schematic diagram of a method for transmitting the group call session information during the start of the group call session includes the following steps:

Step 301: The base station device allocates a group call temporary identifier to the called group, where the group call temporary identifier includes but is not limited to a T-RNTI (Trunking Radio Network Temporary Identity).

Specifically, after the core network triggers the base station device (ie, the eNB) to notify the called UE (ie, the UE in the called group) that the group call session starts, the base station device reserves the downlink transmission resource for the called group, and is The called group allocates a group call temporary identifier (T-RNTI).

Step 302: The base station device sends (ie, sends the temporary call identifier in the air interface) and the NAS layer group identifier corresponding to the called group. The base station device can obtain the NAS layer group identifier from the core network side (ie, TGID, Trunking Group Identifier). ), the acquisition method will not be described again.

In the embodiment of the present invention, the base station device sends the group call temporary identifier and the NAS layer group identifier corresponding to the called group, and the base station device broadcasts the group call dedicated paging period and paging corresponding to the called group in the air interface by using the system broadcast information. At the moment, the UE in the called group attempts to receive the paging message according to the group call dedicated paging cycle and the paging moment; after that, the base station device passes the paging (Paging) message according to the group call dedicated paging cycle and the paging moment. Called group The UEs in the group perform paging, and the parameters carried in the paging message include, but are not limited to, the group call temporary identifier corresponding to the called group and the NAS layer group identifier.

In the embodiment of the present invention, the group call temporary identifier is used for the CRC of the PDCCH corresponding to the scrambling logical channel TCCH (for transmitting downlink control information) and the logical channel TTCH (for transmitting downlink user plane data) (Cyclical) Redundancy Check, and scrambling initialization of the logical channel TCCH and logical channel TTCH.

Step 303: The UE receives the group call temporary identifier corresponding to the called group and the NAS layer group identifier.

Specifically, the UE receiving the group call temporary identifier corresponding to the called group and the NAS layer group identifier includes: the UE receiving, in the air interface, the group call dedicated paging period and the paging moment corresponding to the called group broadcasted by the base station device by using the system broadcast information The UE receives the paging message in the air interface according to the group paging dedicated paging period and the paging moment, and the paging message carries the group call temporary identifier corresponding to the called group and the NAS layer group identifier.

Step 304: When the NAS layer group identifier is the same as the NAS layer group identifier saved by the UE, the UE performs the configuration of the control plane radio bearer corresponding to the logical channel TCCH and the configuration of the data plane radio bearer corresponding to the logical channel TTCH. Then, the control plane information is transmitted between the base station device and the UE based on the logical channel TCCH, and the user plane data is transmitted based on the logical channel TTCH.

Specifically, after receiving the paging message, the UE compares the NAS layer group identifier carried in the paging message with the NAS layer group identifier previously saved by the UE, to determine whether the group call is related to itself; (ie, the NAS layer carried in the paging message) The group identifier is different from the NAS layer group identifier previously saved by the UE, and the UE waits for the next paging moment to retry the reception of the paging message; if it is related to itself (ie, the NAS layer group identifier and the UE carried in the paging message) If the NAS layer group identifiers are the same, the UE performs the configuration of the control plane radio bearer corresponding to the logical channel TCCH and the data plane radio bearer corresponding to the logical channel TTCH according to the default configuration; as shown in Table 1, it is a logical channel. The configuration of the control plane radio bearer corresponding to the TCCH and the configuration of the data plane radio bearer corresponding to the logical channel TTCH.

Table 1

In the embodiment of the present invention, after receiving the group call temporary identifier corresponding to the called group and the NAS layer group identifier, if the group call is related to itself, the UE may further set the group call temporary identifier (from the paging message). Obtained) to notify the physical layer of itself. In the embodiment of the present invention, after receiving the group call temporary identifier and the NAS layer group identifier corresponding to the called group, if the group call is related to itself, the UE may also start the group call session through its own RRC layer. The information is notified to its own NAS layer.

In the embodiment of the present invention, the group call temporary identifier is used for scrambling the CRC of the PDCCH corresponding to the logical channel TCCH and the logical channel TTCH, and the scrambling initialization of the logical channel TCCH and the logical channel TTCH; and completing the control plane wireless corresponding to the logical channel TCCH After the configuration of the bearer and the configuration of the data plane radio bearer corresponding to the logical channel TTCH, the UE monitors the PDCCH in each TTI (Transmission Time Interval); if the group call temporary identifier is received on a certain frame ( That is, the T-RNTI obtained in the above is the identified PDCCH information, and the TB (Transport Block) that is oxygen-bearing in the corresponding PDSCH (Physical Downlink Shared Channel) is decoded, and according to the logical channel identifier. Differently, the correctly decoded MAC (Medium Access Control) PDUs (Protocol Data Units) are respectively sent to the data plane corresponding to the control plane radio bearer processing entity or the logical channel TTCH corresponding to the logical channel TCCH. The radio bearers the processing entity.

As shown in FIG. 4, a schematic diagram of a method for transmitting the group call session information during the end of the group call session includes the following steps:

Step 401: The base station device notifies the UE in the called group of the end of the group call session through the logical channel TCCH.

Specifically, after the core network triggers the base station device to notify the called UE (ie, the UE in the called group) that the group call session ends, the base station device notifies the group call session to the called group through the logical channel TCCH. UE. Step 402: The UE receives information that the base station device ends the group call session sent by the logical channel TCCH.

Step 403: The UE, through its own RRC layer, triggers release of the control plane radio bearer corresponding to the logical channel TCCH and the data plane radio bearer corresponding to the logical channel TTCH.

In the embodiment of the present invention, after receiving the information that the group call session of the base station device is sent through the logical channel TCCH, the UE may also notify the physical layer of the information that the group call temporary identifier is invalid (ie, notify the physical layer of the UE). The group call temporary ID is invalid).

In the embodiment of the present invention, after the UE receives the information about the end of the group call session sent by the base station device through the logical channel TCCH, the UE may also notify the NAS layer of the end of the group call session through its own RRC layer.

As shown in FIG. 5, a schematic diagram of a method for transmitting the group call session information in the process of the current group call session (such as the notification process of the voice right indication information) includes the following steps: Step 501: The base station device passes the logical channel TCCH The call status of the current group call session of the UE is notified to the UE in the called group. The call status of the current group call session includes: a call right idle indication or a call right occupation indication.

Specifically, after the base network device triggers the base station device to notify the called UE (ie, the UE in the called group) of the right state of the current group call session, the base station device notifies the right state of the current group call session of the UE to the right by the logical channel TCCH. The UE in the called group.

Step 502: The UE receives the right state of the current group call session of the UE sent by the base station device by using the logical channel TCCH.

Step 503: The UE notifies the NAS layer of the current group call session to its own NAS layer through its own RRC layer, and the NAS layer uses the current rights of the current group call session to be protected. The stored group call rights status is updated.

In the embodiment of the present invention, in order to avoid the analysis of the message content in the NAS container, thereby reducing the processing delay of the base station device, in a preferred implementation manner, the base station device may further encapsulate the call state of the current group call session of the UE. The NAS layer container of the downlink NAS direct transmission message is notified to the UE in the called group by the downlink NAS direct transmission message.

Further, the UE receives the downlink NAS direct transmission message sent by the base station device through the logical channel TCCH, and the right state of the current group call session is encapsulated in the NAS layer container of the downlink NAS direct transmission message; after that, the UE goes down through its own RRC layer. The information contained in the NAS layer container of the NAS direct transmission message is directly sent to the NAS layer, and the NAS layer updates the saved group call rights status according to the call status of the current group call session.

In summary, in the embodiment of the present invention, the high-bandwidth performance advantage of the LTE system can be fully utilized to implement point-to-multipoint data transmission in a single cell, and the demand for high-altitude resource utilization in the cluster communication system is satisfied, so as to improve the air interface. Resource utilization.

Embodiment 2

Based on the same inventive concept as the foregoing method, the embodiment of the present invention further provides a base station device. As shown in FIG. 6, the base station device includes:

The allocating module 11 is configured to allocate a temporary call identifier for the called group during the start of the group call session;

The sending module 12 is configured to send the group call temporary identifier and the non-access stratum NAS layer group identifier corresponding to the called group during the start of the group call session.

The sending module 12 is specifically configured to broadcast the called group by using system broadcast information. The group-specific paging cycle and paging time corresponding to the group; and,

And the user equipment in the called group is paged by using a paging message according to the group paging dedicated paging period and the paging moment, and the paging message carries the called group corresponding to the paging group. The group call temporary identifier and the NAS layer group identifier.

In the embodiment of the present invention, the group call temporary identifier is used to scramble the cyclic redundancy code check CRC of the physical downlink control channel PDCCH corresponding to the logical channel TCCH and the logical channel TTCH, and the scrambling of the logical channel TCCH and the logical channel TTCH Initializing; wherein, the logical channel TCCH is used for transmitting downlink control information, and the logical channel TTCH is used for performing downlink user plane data transmission.

The sending module 12 is further configured to notify, by the logical channel TCCH, information about the end of the group call session to the user equipment in the called group during the end of the group call session.

The sending module 12 is further configured to notify, by the logical channel TCCH, the right state of the current group call session of the user equipment to the user equipment in the called group in the notification process of the voice right indication information; wherein, the current group The call status of the call session includes: a call right idle indication or a call right occupation indication.

The sending module 12 is further configured to encapsulate the right state of the current group call session of the user equipment in the NAS layer container of the downlink NAS direct transmission message, and notify the right state of the current group call session of the user equipment by using the downlink NAS direct transmission message. To the user equipment in the called group.

Wherein, the modules of the device of the present invention may be integrated or integrated. The above modules can be combined into one module, or can be further split into multiple sub-modules.

Embodiment 3 Based on the same inventive concept as the foregoing method, the user equipment is further provided in the embodiment of the present invention. As shown in FIG. 7, the user equipment includes:

The receiving module 21 is configured to receive, during the start of the group call session, the group call temporary identifier corresponding to the called group and the non-access layer NAS layer group identifier;

The processing module 22 is configured to: when the NAS layer group identifier is the same as the NAS layer group identifier saved by itself, perform configuration of a control plane radio bearer corresponding to the logical channel TCCH, and a configuration of the data plane radio bearer corresponding to the logical channel TTCH.

The receiving module 21 is specifically configured to receive a group call dedicated paging cycle and a paging moment corresponding to the called group that the base station device broadcasts through the system broadcast information; and

The paging message is received according to the group paging dedicated paging period and the paging moment, and the paging message carries the group call temporary identifier and the NAS layer group identifier corresponding to the called group.

The user equipment further includes: a sending module 23, configured to notify the physical layer of the group call temporary identifier to itself.

The sending module 23 is configured to notify, by its own radio resource control, that the RRC layer notifies the NAS layer of the start of the group call session.

In the embodiment of the present invention, the group call temporary identifier is used to scramble the cyclic redundancy code check CRC of the physical downlink control channel PDCCH corresponding to the logical channel TCCH and the logical channel TTCH, and the scrambling of the logical channel TCCH and the logical channel TTCH Initialize

The logical channel TCCH is used for transmitting downlink control information, and the logical channel TTCH is used for transmitting downlink user plane data.

The processing module 22 is further configured to monitor the PDCCH in each transmission time interval ;; if the temporary identifier of the group call is received as an identifier on a certain group The PDCCH is decoded in the transport block TB of the corresponding physical downlink shared channel PDSCH, and the correctly decoded media access control MAC protocol data unit PDU is respectively sent to the corresponding control of the logical channel TCCH according to the different logical channel identifiers. The data plane radio bearer processing entity corresponding to the radio bearer processing entity or the logical channel TTCH.

The receiving module 21 is further configured to: when the group call session ends, receive information that the base station device ends the group call session sent by using the logical channel TCCH;

The processing module 22 is further configured to: by using its own RRC layer, trigger a control plane radio bearer corresponding to the logical channel TCCH and a data plane radio bearer corresponding to the logical channel TTCH.

The sending module 23 is configured to notify the physical layer of the information that the group call temporary identifier is invalid.

The sending module 23 is configured to notify, by its own RRC layer, information about the end of the group call session to its own NAS layer.

The receiving module 21 is further configured to: in a notification process of the voice right indication information, receive a call state of the current group call session of the user equipment sent by the base station device by using the logical channel TCCH; wherein, the call state of the current group call session includes: Right idle indication or right to use instruction;

The sending module 23 is configured to notify the NAS layer of the current group call session by its own RRC layer, and use the call state of the current group call session to the saved group by the NAS layer. The status of the call rights is updated.

The receiving module 21 is further configured to receive a base station device by using a logical channel TCCH The downlink NAS direct transmission message is sent, and the right state of the current group call session is encapsulated in the NAS layer container of the downlink NAS direct transmission message;

The sending module 23 is further configured to send information included in the NAS layer container of the downlink NAS direct transmission message to the NAS layer by using its own RRC layer.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

A person skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the invention.

Those skilled in the art can understand that the modules in the apparatus in the embodiment may be distributed in the apparatus of the embodiment according to the description of the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The above disclosure is only a few specific embodiments of the present invention, but the present invention Any changes that can be considered by those skilled in the art are not intended to fall within the scope of the present invention.

Claims

Rights request

A method for transmitting group call session information, comprising:

The method according to claim 1, wherein the base station device sends the group call temporary identifier and the non-access stratum NAS layer group identifier corresponding to the called group, including:

The base station device broadcasts a group call dedicated paging cycle and a paging moment corresponding to the called group by using system broadcast information;

The base station device performs paging on the user equipment in the called group by using a paging message according to the group paging dedicated paging period and the paging moment, and the paging message carries the called group The corresponding group call temporary identifier and the NAS layer group identifier.

The method according to claim 1 or 2, wherein the group call temporary identifier is used to scramble a cyclic redundancy code check CRC of a physical downlink control channel PDCCH corresponding to a logical channel TCCH and a logical channel TTCH, And scrambling initialization of the logical channel TCCH and the logical channel TTCH;

4. The method of claim 3, wherein the method further comprises:

During the end of the group call session, the base station device passes the logical channel TCCH The information of the end of the group call session is notified to the user equipment in the called group.

5. The method of claim 3, wherein the method further comprises:

In the notification process of the voice right indication information, the base station device notifies the user equipment of the current group call session of the user equipment to the user equipment in the called group through the logical channel TCCH;

The call status of the current group call session includes: a call right idle indication or a call right occupation indication.

6. The method of claim 5, wherein the method further comprises:

The base station device encapsulates the call status of the current group call session of the user equipment in the NAS layer container of the downlink NAS direct transmission message, and notifies the called status of the current group call session of the user equipment by using the downlink NAS direct transmission message. User equipment within the group.

A method for transmitting a group call session information, comprising: in a process of starting a group call session, the user equipment receives a group call temporary identifier corresponding to the called group and a non-access layer NAS layer group identifier;

When the NAS layer group identifier is the same as the NAS layer group identifier saved by the user, the user equipment performs the configuration of the control plane radio bearer corresponding to the logical channel TCCH and the configuration of the data plane radio bearer corresponding to the logical channel TTCH.

The method according to claim 7, wherein the user equipment receives the group call temporary identifier corresponding to the called group and the non-access stratum NAS layer group identifier, and the method includes: the user equipment receiving the base station device The called of the system broadcast information broadcast a group-specific paging cycle and a paging moment corresponding to the group;

The user equipment receives the paging message according to the group call dedicated paging period and the paging moment, and the paging message carries the group call temporary identifier corresponding to the called group and

NAS layer group ID.

The method according to claim 7, wherein the user equipment receives the group call temporary identifier corresponding to the called group and the non-access stratum NAS layer group identifier, and further includes:

The user equipment notifies the group call temporary identifier to its own physical layer.

The user equipment notifies the RRC layer of the start of the group call session to its own NAS layer through its own radio resource control RRC layer.

The method according to any one of claims 7 to 10, wherein the group call temporary identifier is used to scramble the cyclic redundancy code of the physical downlink control channel PDCCH corresponding to the logical channel TCCH and the logical channel TTCH. Verify CRC, and scrambling initialization of logical channel TCCH and logical channel TTCH;

The method according to claim 11, wherein the configuration of the control plane radio bearer corresponding to the logical channel TCCH and the configuration of the data plane radio bearer corresponding to the logical channel TTCH, the method further includes: The user equipment monitors the PDCCH in each transmission time interval ;; if the PDCCH with the group call temporary identifier is received on a certain ,, the transport block TB carried in the corresponding physical downlink shared channel PDSCH is translated. The code, and the correctly decoded media access control MAC protocol data unit PDU is respectively sent to the control plane radio bearer processing entity corresponding to the logical channel TCCH or the data plane radio bearer processing entity corresponding to the logical channel TTCH according to the different logical channel identifiers.

13. The method of claim 7, wherein the method further comprises:

During the end of the group call session, the user equipment receives the end of the group call session sent by the base station device through the logical channel TCCH, and triggers the release of the control plane radio 7 and the logical channel TTCH corresponding to the logical channel TCCH through its own RRC layer trigger. The corresponding data plane is wirelessly carried.

The method according to claim 13, wherein the user equipment receives information about the end of the group call session sent by the base station device through the logical channel TCCH, and then includes:

The user equipment notifies the physical layer of the group that the group call temporary identifier is invalid.

The user equipment notifies the NAS layer of its own group call session through its own RRC layer.

16. The method of claim 7, wherein the method further comprises:

In the notification process of the voice right indication information, the user equipment receives the call right state of the current group call session of the user equipment sent by the base station device through the logical channel TCCH; wherein, the right state of the current group call session includes: the voice right idle indication or the message And the user equipment notifies the NAS layer of the current group call session to the NAS layer of the current group call session by using the RRC layer of the user, and the NAS layer uses the call status of the current group call session to the saved group. The status of the call rights is updated.

17. The method of claim 16, wherein the method further comprises:

The user equipment receives the downlink NAS direct transmission message sent by the base station device through the logical channel TCCH, and the call state of the current group call session is encapsulated in the NAS layer container of the downlink NAS direct transmission message;

The user equipment sends the information contained in the NAS layer container of the downlink NAS direct transmission message to the NAS layer through its own RRC layer.

18. A base station device, comprising:

An allocating module, configured to allocate a group call temporary identifier to the called group during the start of the group call session;

And a sending module, configured to send the group call temporary identifier and the non-access stratum NAS layer group identifier corresponding to the called group during the start of the group call session.

19. The base station device according to claim 18, wherein

The sending module is specifically configured to broadcast the called group pair by using system broadcast information. The appropriate group paging dedicated paging cycle and paging moment; and,

The base station device according to claim 18 or 19, wherein the group call temporary identifier is used to scramble a cyclic redundancy code check CRC of a physical downlink control channel PDCCH corresponding to a logical channel TCCH and a logical channel TTCH And scrambling initialization of the logical channel TCCH and the logical channel TTCH;

21. The base station device according to claim 20, wherein

The sending module is further configured to notify, by the logical channel TCCH, information about the end of the group call session to the user equipment in the called group during the end of the group call session.

22. The base station device according to claim 20, wherein

The sending module is further configured to notify the user equipment in the called group of the current group call session status of the user equipment by using the logical channel TCCH in the notification process of the voice right indication information; wherein, the current group call The session status of the session includes: a call idle indication or a call occupancy indication.

23. The base station device according to claim 22, wherein

The sending module is further configured to encapsulate the call status of the current group call session of the user equipment in the NAS layer container of the downlink NAS direct transmission message, and notify the right state of the current group call session of the user equipment by using the downlink NAS direct transmission message. Within the called group User equipment.

24. A user equipment, comprising:

a receiving module, configured to receive a group call temporary identifier corresponding to the called group and a non-access layer NAS layer group identifier during the start of the group call session;

And a processing module, configured to: when the NAS layer group identifier is the same as the NAS layer group identifier saved by the NAS layer group identifier, perform a configuration of a control plane radio bearer corresponding to the logical channel TCCH, and a configuration of the data plane radio bearer corresponding to the logical channel TTCH.

25. The user equipment of claim 24, wherein

The receiving module is specifically configured to receive a group call dedicated paging cycle and a paging moment corresponding to the called group broadcasted by the base station device by using the system broadcast information; and

The user equipment according to claim 24, further comprising: a sending module, configured to notify the physical layer of the group call temporary identifier to itself.

The user equipment according to claim 24, further comprising: a sending module, configured to notify, by its own radio resource control RRC layer, information about the start of the group call session to its own NAS layer.

The user equipment according to any one of claims 24 to 27, wherein the group call temporary identifier is used to scramble a cyclic redundancy code of a physical downlink control channel PDCCH corresponding to a logical channel TCCH and a logical channel TTCH. Verifying the CRC, and scrambling initialization of the logical channel TCCH and the logical channel TTCH;

The logical channel TCCH is used for transmitting downlink control information. The logical channel TTCH is used for transmitting downlink user plane data.

29. The user equipment of claim 28, wherein

The processing module is further configured to monitor the PDCCH in each transmission time interval ;; if the PDCCH with the group call temporary identifier is received on a certain ,, the PDSH bearer transmission on the corresponding physical downlink shared channel The block TB performs decoding, and sends the correctly decoded media access control MAC protocol data unit PDU to the control plane radio bearer processing entity corresponding to the logical channel TCCH or the data plane corresponding to the logical channel TTCH according to the different logical channel identifiers. Bearer processing entity.

30. The user equipment of claim 24, wherein

The receiving module is further configured to receive, during the end of the group call session, information about the end of the group call session sent by the base station device by using the logical channel TCCH;

The processing module is further configured to: release, by using its own RRC layer, a control plane radio bearer corresponding to the logical channel TCCH and a data plane radio bearer corresponding to the logical channel TTCH.

The user equipment according to claim 30, further comprising: a sending module, configured to notify the physical layer of the information that the group call temporary identifier is invalid.

The user equipment according to claim 30, further comprising: a sending module, configured to notify, by its own RRC layer, information about the end of the group call session to its own NAS layer.

33. The user equipment according to claim 24, further comprising a sending module; The receiving module is further configured to: in a notification process of the voice right indication information, receive a call state of the current group call session of the user equipment sent by the base station device by using the logical channel TCCH; where the call rights status of the current group call session includes: the right of the call The idle indicator or the right to use the voice indication; the sending module, configured to notify the NAS layer of the current group call session by its own RRC layer, and use the current group call session by the NAS layer The rights status updates the saved group call rights status.

34. The user equipment of claim 33, wherein

The receiving module is further configured to receive a downlink NAS direct transmission message sent by the base station device by using a logical channel TCCH, and the right state of the current group call session is encapsulated in a NAS layer container of the downlink NAS direct transmission message;

The sending module is further configured to send information included in the NAS layer container of the downlink NAS direct transmission message to the NAS layer by using its own RRC layer.