CN110139369B

CN110139369B - Data transmission method, device, terminal and network side equipment

Info

Publication number: CN110139369B
Application number: CN201810135137.6A
Authority: CN
Inventors: 赵亚利
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-02-09
Filing date: 2018-02-09
Publication date: 2022-04-01
Anticipated expiration: 2038-02-09
Also published as: CN110139369A

Abstract

The invention provides a data transmission method, a device, a terminal and network side equipment, wherein the data transmission method comprises the following steps: receiving mapping relation indication information between a logical channel and a logical channel group, which is used by a direct communication interface sent by network side equipment after a repeated function is configured or activated; and organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment. The scheme can ensure that the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

Description

Data transmission method, device, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method, an apparatus, a terminal, and a network device.

Background

1) Device-to-device direct communication

Devices and devices in close proximity to each other allow direct communication. For ease of description, the link defining direct communication between terminals is referred to as a Sidelink (translated as a direct communication link or bypass). As shown in fig. 1: the devices that communicate directly may all be on-line or off-line, or some may be on-line and some off-line.

For direct communication between devices, the user plane protocol stack is shown in fig. 2, and includes: PDCP (Packet Data Convergence Protocol) layer, RLC (Radio Link Control Protocol) layer, MAC (Media Access Control) layer, and PHY (physical layer).

2) Sidelink BSR (Buffer State Reporting) mechanism

The wireless communication system is based on scheduling, a base station allocates time-frequency resources required by data transmission for terminal equipment, and the terminal receives downlink data or transmits uplink data according to a scheduling command of the base station. Uplink data transmission is scheduled by the base station, and the base station scheduler determines an uplink resource allocation and then notifies the terminal through a UL grant (uplink scheduling grant). The base station scheduler allocates uplink resources according to the amount of uplink data to be transmitted by the terminal, i.e. the buffer status of the terminal. The Buffer is cached at the terminal side, and the base station needs to perform BSR (Buffer state report) to the base station in order to acquire the information.

For the conventional direct communication between terminals, the current scheme for reporting the sildelink BSR is as follows: the network side device directly configures a mapping relationship between a Logical Channel Group (LCG) and a point-to-point protocol (PPPP) (ProSe Per-Packet Priority, direct communication Packet Priority) for the terminal. When a terminal has a requirement for reporting the Sidelink BSR, according to the PPPP of an LC (Logical Channel) with data to be transmitted, the LCG to which the terminal belongs is determined, then the data amount corresponding to each LCG is determined, the MAC CE (control unit) of the Sidelink BSR is encapsulated, and the latest UL grant after the triggering of the Sidelink BSR is utilized to send the Sidelink BSR information to the network.

3)PDCP duplication

The 5G NR (New Radio New air interface) system mainly supports the following three types of services:

the first type, eMBB (enhanced Mobile Broadband, enhanced Broadband communications);

the second Type, mtc (massive Machine Type Communications);

the third type, URLLC (Ultra-Reliable and Low Latency Communications).

For URLLC, because of its high requirements for delay and reliability, in order to support the service transmission requirement of high reliability and low delay, a solution provided by 3GPP at present is to introduce a PDCP (Packet Data Convergence Protocol) duplicate mechanism into 5G NR, that is, transmit the same PDCP layer PDU (Protocol Data Unit) through multiple paths, improve transmission reliability through multiple transmission gains, and reduce transmission delay. The PDCP duty model is shown in fig. 3:

that is, one radio bearer (corresponding to one PDCP entity) of the PDCP layer is transmitted through two logical channels (each logical channel corresponds to one RLC entity) in the RLC layer, and data from the two RLC logical channels are mapped to different carriers for transmission by one MAC entity in the MAC layer.

If the Sidelink supports replication, according to the current Sidelink BSR reporting mechanism, the data PPPP of the two logical channels corresponding to the replication SLRB (radio bearer of the direct communication interface) are completely the same, and therefore, it is inevitable that the data PPPP of the replication SLRB corresponds to one LCG, so that the data PPPP of the replication SLRB cannot be scheduled to different physical resources (for example, different carrier resources) when the network side schedules the replication resource. So that the gain of PDCP duty will not be guaranteed.

Disclosure of Invention

The invention aims to provide a data transmission method, a data transmission device, a terminal and network side equipment, and solves the problem that the network side cannot schedule duplicate SLRB data to different physical resources when scheduling sidelink resources in the prior art.

In order to solve the above technical problem, an embodiment of the present invention provides a data transmission method, applied to a terminal, including:

receiving mapping relation indication information between a logical channel and a logical channel group, which is used by a direct communication interface sent by network side equipment after a repeated function is configured or activated;

and organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment.

Optionally, the step of receiving mapping relationship indication information between a logical channel and a logical channel group used by a direct communication interface sent by the network side device after the repeat function is configured or activated includes:

receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment; each QoS class group corresponds to N logic channel groups, wherein N is equal to the number of logic channels corresponding to one SLRB (synchronization signaling bridge) with a repeat function configured or activated;

the step of organizing a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information includes:

for the SLRB with the configured or activated repeating function, according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group, respectively mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups, and organizing BSR MAC CE.

Optionally, before receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a repeat function is configured or activated, the data transmission method further includes:

and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises indication information of whether the SLRB of the terminal configures or activates a repeat function.

receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment; for the SLRBs with the repeat function configured or activated, the corresponding QoS level group corresponds to N logical channel groups, and N is equal to the number of the logical channels corresponding to one SLRB with the repeat function configured or activated;

and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises QoS parameter indication information corresponding to the SLRB with the terminal configuration or activated repeat function.

receiving a mapping relation between a service quality QoS grade group and a logic channel group sent by network side equipment and a mapping relation between a logic channel and a logic channel group established after a repeat function is configured or activated by an SLRB configured or activated by the repeat function;

for the SLRB with the repeat function configured or activated, determining the mapping relation between the logical channels and the logical channel groups established by the SLRB before the repeat function is configured or activated and the mapping relation between the logical channels and the logical channel groups established by the SLRB after the repeat function is configured or activated according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel groups, and mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups respectively to organize the BSR MAC CE.

and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises an identifier of a logical channel established by the SLRB with the repeat function configured or activated by the terminal after the repeat function is configured or activated and a corresponding QoS parameter.

Optionally, the step of receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by the network side device after the repeat function is configured or activated includes:

receiving a mapping relation between a logical channel and a logical channel group of an SLRB (synchronization Link Block) sent by network side equipment;

for the SLRB with the configured or activated repeating function, according to the mapping relation between the logical channel and the logical channel group, mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups respectively, and organizing BSR MAC CE.

and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises logical channel numbers and QoS parameter indication information corresponding to all SLRBs of the terminal, and indication information indicating association relation between one SLRB and a plurality of corresponding logical channels for the SLRBs with the repeat function configured or activated.

Optionally, the triggering condition for reporting the auxiliary information to the network side device includes:

receiving a repeat function configuration or reconfiguration signaling aiming at the SLRB sent by a network side device; and/or

Receiving a repeated function activation or deactivation signaling aiming at the SLRB sent by a network side device; and/or

The terminal autonomously decides to configure or de-configure or activate or deactivate the repeat function of the preset SLRB.

The embodiment of the invention also provides a data transmission method, which is applied to network side equipment and comprises the following steps:

determining mapping relation indication information between a logical channel and a logical channel group used by the direct communication interface after the repeated function is configured or activated;

and sending the mapping relation indication information to a terminal, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information.

Optionally, the step of determining information indicating a mapping relationship between a logical channel and a logical channel group used by the direct communication interface after the repeat function is configured or activated includes:

according to auxiliary information stored by network side equipment or sent by a terminal, configuring N logical channel groups aiming at a service quality QoS (quality of service) grade group corresponding to each SLRB, wherein N is equal to the number of logical channels corresponding to one SLRB with a repeated function configured or activated;

the step of sending the mapping relation indication information to the terminal includes:

and sending the mapping relation between the QoS grade group and the logic channel group to the terminal.

Optionally, the auxiliary information includes indication information of whether the repeat function is configured or activated by the SLRB of the terminal.

according to auxiliary information stored by network side equipment or sent by a terminal, configuring N logical channel groups aiming at a service quality QoS level group corresponding to an SLRB (service quality and quality control) which is configured or activated with a repeating function, wherein N is equal to the number of logical channels corresponding to one SLRB which is configured or activated with the repeating function;

configuring a corresponding logical channel group aiming at a QoS grade group corresponding to an SLRB which is not configured or activates a repeat function;

Optionally, the auxiliary information includes QoS parameter indication information corresponding to the SLRB in which the terminal configures or activates the repeat function.

and according to the auxiliary information sent by the terminal, aiming at the logical channel which is established on the direct communication link and used for repeating the direct communication link, configuring an independent logical channel group for the logical channel according to the QoS parameter of the logical channel.

Optionally, the step of configuring, according to the QoS parameter of the logical channel for the repetition of the direct communication link established on the direct communication link, an independent logical channel group for the logical channel includes:

configuring a corresponding logical channel group aiming at a logical channel established after the repeated function is configured or activated by the SLRB configured or activated with the repeated function;

and sending the mapping relation between the QoS grade group and the logic channel group and the mapping relation between the logic channel and the logic channel group established after the repeat function is configured or activated by the SLRB configured or activated with the repeat function to the terminal.

Optionally, the auxiliary information includes an identifier of a logical channel established by the SLRB configured or activated by the terminal after configuring or activating the repeat function, and a corresponding QoS parameter.

determining a mapping relation between a logical channel and a logical channel group by using the QoS parameters corresponding to all SLRBs and whether the SLRBs are configured or activated with a repeat function according to the auxiliary information sent by the terminal;

and sending the mapping relation between the logic channels and the logic channel group of the SLRB to the terminal.

Optionally, the auxiliary information includes logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for SLRBs to which a repeat function is configured or activated.

Optionally, before receiving the auxiliary information sent by the terminal, the data transmission method further includes:

transmitting a repeat function configuration or reconfiguration signaling for the SLRB to the terminal; and/or

And transmitting a repeat function activation or deactivation signaling for the SLRB to the terminal.

Optionally, before determining the information indicating the mapping relationship between the logical channels and the logical channel groups, which is used by the direct communication interface after the repetition function is configured or activated, the data transmission method further includes:

determining whether the terminal configures or activates a repeat function according to auxiliary information stored by network side equipment or sent by the terminal;

and if so, executing the step of determining the mapping relation indication information between the logical channels and the logical channel groups used by the direct communication interface after the repeated function is configured or activated.

The embodiment of the invention also provides a terminal, which comprises a memory, a processor, a transceiver and a computer program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:

receiving, by the transceiver, mapping relationship indication information between a logical channel and a logical channel group, which is used by a direct communication interface sent by a network-side device after a repetition function is configured or activated;

and organizing a buffer status report media access control layer control element (BSR MAC CE) according to the mapping relation indication information, and sending the buffer status report media access control layer control element (BSR MAC CE) to the network side equipment through the transceiver.

Optionally, the processor is specifically configured to:

receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment through the transceiver; each QoS class group corresponds to N logic channel groups, wherein N is equal to the number of logic channels corresponding to one SLRB (synchronization signaling bridge) with a repeat function configured or activated;

Optionally, the processor is further configured to:

before receiving indication information of a mapping relationship between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated, which is sent by network side equipment, reporting auxiliary information to the network side equipment through the transceiver, wherein the auxiliary information includes indication information of whether a terminal SLRB configures or activates the repeat function.

Optionally, the processor is specifically configured to:

receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment through the transceiver; for the SLRBs with the repeat function configured or activated, the corresponding QoS level group corresponds to N logical channel groups, and N is equal to the number of the logical channels corresponding to one SLRB with the repeat function configured or activated;

Optionally, the processor is further configured to:

before receiving mapping relation indication information between a logical channel and a logical channel group used by a direct communication interface sent by network side equipment after a repeat function is configured or activated, reporting auxiliary information to the network side equipment through the transceiver, wherein the auxiliary information comprises QoS parameter indication information corresponding to an SLRB (subscriber line bridge) with the repeat function configured or activated by a terminal.

Optionally, the processor is specifically configured to:

receiving, by the transceiver, a mapping relationship between a quality of service (QoS) class group and a logical channel group transmitted by a network side device and a mapping relationship between a logical channel and a logical channel group established after a repeat function is configured or activated by an SLRB configured or activated with the repeat function;

Optionally, the processor is further configured to:

before receiving indication information of a mapping relationship between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated, which is sent by a network side device, reporting auxiliary information to the network side device through the transceiver, wherein the auxiliary information includes an identifier of the logical channel and a corresponding QoS parameter, which are established after the terminal configures or activates the repeat function SLRB.

Optionally, the processor is specifically configured to:

receiving a mapping relation between a logical channel and a logical channel group of an SLRB (synchronization Link Block) transmitted by network side equipment through the transceiver;

Optionally, the processor is further configured to:

before receiving mapping relation indication information between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated, the direct communication interface sent by a network side device reports auxiliary information to the network side device through the transceiver, wherein the auxiliary information comprises logical channel numbers and QoS parameter indication information corresponding to all SLRBs of a terminal, and indication information indicating association relation between one SLRB and a plurality of corresponding logical channels for the SLRBs with the repeat function configured or activated.

receiving a repeated function configuration or reconfiguration signaling aiming at the SLRB, which is sent by network side equipment, through the transceiver; and/or

Receiving a repeated function activation or deactivation signaling aiming at the SLRB, which is sent by a network side device, through the transceiver; and/or

The embodiment of the invention also provides network side equipment, which comprises a memory, a processor, a transceiver and a computer program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:

and sending the mapping relation indication information to a terminal through the transceiver, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information.

Optionally, the processor is specifically configured to:

and sending the mapping relation between the QoS grade group and the logic channel group to the terminal through the transceiver.

Optionally, the processor is specifically configured to:

and sending the mapping relation between the QoS grade group and the logical channel group and the mapping relation between the logical channel and the logical channel group established after the repeat function is configured or activated by the SLRB configured or activated with the repeat function to the terminal through the transceiver.

Optionally, the processor is specifically configured to:

and sending the mapping relation between the logic channel and the logic channel group of the SLRB to the terminal through the transceiver.

Optionally, the processor is further configured to:

before receiving the auxiliary information sent by the terminal, sending a repeated function configuration or reconfiguration signaling aiming at the SLRB to the terminal through the transceiver; and/or

Optionally, the processor is further configured to:

before determining the mapping relation indication information between the logical channel and the logical channel group used by the direct communication interface after the repeat function is configured or activated, determining whether the terminal configures or activates the repeat function according to auxiliary information stored by network side equipment or sent by the terminal;

and if so, executing the operation of determining the mapping relation indication information between the logical channels and the logical channel groups used by the direct communication interface after the repeated function is configured or activated.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the data transmission method applied to a terminal.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the data transmission method applied to the network-side device.

The embodiment of the invention also provides a data transmission device, which is applied to a terminal and comprises the following components:

the first receiving module is used for receiving mapping relation indication information between a logical channel and a logical channel group, which is used by a direct communication interface after a repeat function is configured or activated, sent by network side equipment;

and the first processing module is configured to organize a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information, and send the buffer status report BSR MAC CE to the network side device.

Optionally, the first receiving module includes:

the first receiving submodule is used for receiving the mapping relation between the QoS class group and the logic channel group sent by the network side equipment; each QoS class group corresponds to N logic channel groups, wherein N is equal to the number of logic channels corresponding to one SLRB (synchronization signaling bridge) with a repeat function configured or activated;

the first processing module comprises:

and the first processing submodule is used for mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group and organizing the BSR MAC CE for the SLRB with the configured or activated repeat function.

Optionally, the data transmission apparatus further includes:

the first reporting module is configured to report auxiliary information to the network side device before receiving indication information of a mapping relationship between a logical channel and a logical channel group, where the mapping relationship is used by a direct communication interface sent by the network side device after a repetition function is configured or activated, where the auxiliary information includes indication information of whether a repetition function is configured or activated by an SLRB of a terminal.

Optionally, the first receiving module includes:

the second receiving submodule is used for receiving the mapping relation between the QoS class group and the logic channel group sent by the network side equipment; for the SLRBs with the repeat function configured or activated, the corresponding QoS level group corresponds to N logical channel groups, and N is equal to the number of the logical channels corresponding to one SLRB with the repeat function configured or activated;

the first processing module comprises:

and the second processing submodule is used for mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group and organizing the BSR MAC CE for the SLRB with the configured or activated repeat function.

Optionally, the data transmission apparatus further includes:

and a second reporting module, configured to report, to the network side device, auxiliary information before receiving indication information of a mapping relationship between a logical channel and a logical channel group, where the mapping relationship is used by a direct communication interface sent by the network side device after a repetition function is configured or activated, where the auxiliary information includes QoS parameter indication information corresponding to an SLRB where the repetition function is configured or activated by the terminal.

Optionally, the first receiving module includes:

a third receiving submodule, configured to receive a mapping relationship between a QoS class group and a logical channel group, which are sent by a network side device, and a mapping relationship between a logical channel and a logical channel group, which are established after a repeat function is configured or activated by an SLRB configured or activated with the repeat function;

the first processing module comprises:

and a third processing submodule, configured to, for an SLRB with a repeat function configured or activated, determine, according to a QoS parameter corresponding to the SLRB and a mapping relationship between a QoS class group and a logical channel group, a mapping relationship between a logical channel and a logical channel group established by the SLRB before the repeat function is configured or activated and a mapping relationship between a logical channel and a logical channel group established by the SLRB after the repeat function is configured or activated, and map a plurality of logical channels corresponding to the SLRB to different logical channel groups, respectively, so as to organize BSR MAC CEs.

Optionally, the data transmission apparatus further includes:

and a third reporting module, configured to report, to the network side device, auxiliary information before receiving information indicating a mapping relationship between a logical channel and a logical channel group, where the information is used by a direct communication interface after a repeat function is configured or activated, where the auxiliary information includes an identifier of a logical channel established by an SLRB configured or activated by a terminal after the repeat function is configured or activated, and a corresponding QoS parameter.

Optionally, the first receiving module includes:

the fourth receiving submodule is used for receiving the mapping relation between the logical channel and the logical channel group of the SLRB sent by the network side equipment;

the first processing module comprises:

and the fourth processing submodule is used for mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups according to the mapping relation between the logical channel and the logical channel group and organizing the BSR MAC CE for the SLRB with the configured or activated repeating function.

Optionally, the data transmission apparatus further includes:

and a fourth reporting module, configured to report, to the network side device, auxiliary information before receiving indication information of a mapping relationship between a logical channel and a logical channel group, where the mapping relationship is used by a direct communication interface sent by the network side device after a repeat function is configured or activated, where the auxiliary information includes logical channel numbers and QoS parameter indication information corresponding to all SLRBs of the terminal, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for SLRBs to which the repeat function is configured or activated.

The embodiment of the present invention further provides a data transmission device, which is applied to a network side device, and includes:

the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining mapping relation indication information between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated;

and the first transceiver module is configured to send the mapping relationship indication information to a terminal, and receive a buffer status report BSR MAC CE sent by the terminal according to the mapping relationship indication information.

Optionally, the first determining module includes:

a first configuration submodule, configured to configure, according to auxiliary information stored in a network side device or sent by a terminal, N logical channel groups for a quality of service QoS class group corresponding to each SLRB, where N is equal to the number of logical channels corresponding to one SLRB in which a repeat function is configured or activated;

the first transceiver module includes:

and the first sending submodule is used for sending the mapping relation between the QoS grade group and the logic channel group to the terminal.

Optionally, the first determining module includes:

a second configuration submodule, configured to configure N logical channel groups for a quality of service QoS class group corresponding to an SLRB configured or activated with a repetition function according to auxiliary information stored by a network side device or transmitted by a terminal, where N is equal to the number of logical channels corresponding to one SLRB configured or activated with a repetition function;

the first transceiver module includes:

and the second sending submodule is used for sending the mapping relation between the QoS grade group and the logic channel group to the terminal.

Optionally, the first determining module includes:

and the third configuration submodule is used for configuring an independent logical channel group for the logical channel which is established on the direct communication link and used for repeating the direct communication link according to the auxiliary information sent by the terminal and the QoS parameter.

Optionally, the third configuration sub-module includes:

a first configuration unit, configured to configure a corresponding logical channel group for a logical channel established after configuring or activating the repeat function for the SLRB configured or activated with the repeat function;

the first transceiver module includes:

and a third sending submodule, configured to send the mapping relationship between the QoS class group and the logical channel group and the mapping relationship between the logical channel and the logical channel group, which is established after the repeat function is configured or activated by the SLRB configured or activated with the repeat function, to the terminal.

Optionally, the first determining module includes:

a first determining submodule, configured to determine, according to auxiliary information sent by a terminal, a mapping relationship between a logical channel and a logical channel group by using quality of service QoS parameters corresponding to all SLRBs and whether the SLRB configures or activates a repeat function;

the first transceiver module includes:

and the fourth sending submodule is used for sending the mapping relation between the logic channel and the logic channel group of the SLRB to the terminal.

Optionally, the data transmission apparatus further includes:

a first sending module, configured to send a repeat function configuration or reconfiguration signaling for the SLRB to the terminal before receiving the auxiliary information sent by the terminal; and/or

Optionally, the data transmission apparatus further includes:

a second determining module, configured to determine whether the terminal configures or activates the repetition function according to auxiliary information stored by the network side device or sent by the terminal before determining information indicating a mapping relationship between a logical channel and a logical channel group used by the direct communication interface after the repetition function is configured or activated;

and if so, executing the operation of determining the mapping relationship indication information between the logical channels and the logical channel groups, which are used by the direct communication interface after the repeat function is configured or activated.

The technical scheme of the invention has the following beneficial effects:

in the above scheme, the data transmission method receives mapping relationship indication information between a logical channel and a logical channel group, which is used by a direct communication interface sent by a network side device after a repeat function is configured or activated; organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

Drawings

FIG. 1 is a diagram of a prior art direct communication link;

FIG. 2 is a diagram of a user plane protocol stack in the prior art;

FIG. 3 is a diagram illustrating a PDCP duplicate model in the prior art;

FIG. 4 is a first diagram illustrating a data transmission method according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a second data transmission method according to an embodiment of the present invention;

fig. 6 is a first flowchart illustrating a specific application of the data transmission method according to the embodiment of the present invention;

fig. 7 is a schematic diagram of a specific application flow of the data transmission method according to the embodiment of the present invention;

fig. 8 is a schematic view illustrating a specific application flow of the data transmission method according to the embodiment of the present invention;

fig. 9 is a schematic diagram illustrating a specific application flow of the data transmission method according to the embodiment of the present invention;

fig. 10 is a schematic diagram of a specific application flow of the data transmission method according to the embodiment of the present invention;

fig. 11 is a schematic diagram illustrating a specific application flow of the data transmission method according to the embodiment of the present invention;

fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

FIG. 14 is a first schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The present invention provides a data transmission method, applied to a terminal, for solving the problem that the data of a duplicate SLRB cannot be scheduled to different physical resources when a network side schedules sidelink resources in the prior art, as shown in fig. 4, the method includes:

step 41: receiving mapping relation indication information between a logical channel and a logical channel group, which is used by a direct communication interface sent by network side equipment after a repeated function is configured or activated;

step 42: and organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment.

The data transmission method provided by the embodiment of the invention receives the mapping relation indication information between the logic channel and the logic channel group, which is used by the direct communication interface sent by the network side equipment after the repeated function is configured or activated; organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

For the specific implementation of step 41 and step 42, the following four examples are provided in the embodiment of the present invention, and these four examples may exist alone or may coexist in any number of ways, and are not limited herein:

first, the step of receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a repeat function is configured or activated includes: receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment; each QoS class group corresponds to N logic channel groups, wherein N is equal to the number of logic channels corresponding to one SLRB (synchronization signaling bridge) with a repeat function configured or activated;

the step of organizing a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information includes: for the SLRB with the configured or activated repeating function, according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group, respectively mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups, and organizing BSR MAC CE.

Further, before receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a duplicate function is configured or activated, the data transmission method further includes: and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises indication information of whether the SLRB of the terminal configures or activates a repeat function.

Second, the step of receiving mapping relationship indication information between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a repeat function is configured or activated includes: receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment; for the SLRBs with the repeat function configured or activated, the corresponding QoS level group corresponds to N logical channel groups, and N is equal to the number of the logical channels corresponding to one SLRB with the repeat function configured or activated;

Further, before receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a duplicate function is configured or activated, the data transmission method further includes: and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises QoS parameter indication information corresponding to the SLRB with the terminal configuration or activated repeat function.

Thirdly, the step of receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by the network side device after the repeat function is configured or activated includes: receiving a mapping relation between a service quality QoS grade group and a logic channel group sent by network side equipment and a mapping relation between a logic channel and a logic channel group established after a repeat function is configured or activated by an SLRB configured or activated by the repeat function;

the step of organizing a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information includes: for the SLRB with the repeat function configured or activated, determining the mapping relation between the logical channels and the logical channel groups established by the SLRB before the repeat function is configured or activated and the mapping relation between the logical channels and the logical channel groups established by the SLRB after the repeat function is configured or activated according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel groups, and mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups respectively to organize the BSR MAC CE.

Further, before receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a duplicate function is configured or activated, the data transmission method further includes: and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises an identifier of a logical channel established by the SLRB with the repeat function configured or activated by the terminal after the repeat function is configured or activated and a corresponding QoS parameter.

Fourthly, the step of receiving the information indicating the mapping relationship between the logical channels and the logical channel groups used by the direct communication interface sent by the network side device after the repeat function is configured or activated includes: receiving a mapping relation between a logical channel and a logical channel group of an SLRB (synchronization Link Block) sent by network side equipment;

the step of organizing a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information includes: for the SLRB with the configured or activated repeating function, according to the mapping relation between the logical channel and the logical channel group, mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups respectively, and organizing BSR MAC CE.

Further, before receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a duplicate function is configured or activated, the data transmission method further includes: and reporting auxiliary information to network side equipment, wherein the auxiliary information comprises logical channel numbers and QoS parameter indication information corresponding to all SLRBs of the terminal, and indication information indicating association relation between one SLRB and a plurality of corresponding logical channels for the SLRBs with the repeat function configured or activated.

In the embodiment of the present invention, the triggering condition for reporting the auxiliary information to the network side device includes: receiving a repeat function configuration or reconfiguration signaling aiming at the SLRB sent by a network side device; and/or receiving a repeat function activation or deactivation signaling for the SLRB, which is sent by the network side equipment; and/or the terminal decides to configure or de-configure or activate or deactivate the repeat function of the preset SLRB by itself.

The identifier of the logical channel may specifically be an LC ID, the mapping relationship between the logical channel and the logical channel group may specifically be a mapping relationship between an LC ID and an LCG ID, the above-mentioned mapping relationship of the logical channel may specifically be a mapping relationship for an LC ID, and the mapping relationship of the related logical channel group may specifically be a mapping relationship for an LCG ID, but is not limited thereto.

An embodiment of the present invention further provides a data transmission method, which is applied to a network side device, and as shown in fig. 5, the method includes:

step 51: determining mapping relation indication information between a logical channel and a logical channel group used by the direct communication interface after the repeated function is configured or activated;

step 52: and sending the mapping relation indication information to a terminal, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information.

The data transmission method provided by the embodiment of the invention determines the mapping relation indication information between the logic channel and the logic channel group used by the direct communication interface after the repeated function is configured or activated; sending the mapping relation indication information to a terminal, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

For the specific implementation of step 51 and step 52, the following four examples are provided in the embodiment of the present invention, and these four examples may exist alone or may coexist in any number of ways, and are not limited herein:

first, the step of determining mapping relationship indication information between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated includes: according to auxiliary information stored by network side equipment or sent by a terminal, configuring N logical channel groups aiming at a service quality QoS (quality of service) grade group corresponding to each SLRB, wherein N is equal to the number of logical channels corresponding to one SLRB with a repeated function configured or activated;

the step of sending the mapping relation indication information to the terminal includes: and sending the mapping relation between the QoS grade group and the logic channel group to the terminal.

Wherein the assistance information includes indication information of whether a repeat function is configured or activated by an SLRB of the terminal.

Secondly, the step of determining mapping relationship indication information between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated includes: according to auxiliary information stored by network side equipment or sent by a terminal, configuring N logical channel groups aiming at a service quality QoS level group corresponding to an SLRB (service quality and quality control) which is configured or activated with a repeating function, wherein N is equal to the number of logical channels corresponding to one SLRB which is configured or activated with the repeating function; configuring a corresponding logical channel group aiming at a QoS grade group corresponding to an SLRB which is not configured or activates a repeat function;

The auxiliary information includes QoS parameter indication information corresponding to an SLRB with a terminal configuration or activated repeat function.

Thirdly, the step of determining mapping relationship indication information between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated includes: and according to the auxiliary information sent by the terminal, aiming at the logical channel which is established on the direct communication link and used for repeating the direct communication link, configuring an independent logical channel group for the logical channel according to the QoS parameter of the logical channel.

Specifically, the step of configuring, according to the QoS parameter of the logical channel for the repetition of the direct communication link established on the direct communication link, an independent logical channel group for the logical channel includes: configuring a corresponding logical channel group aiming at a logical channel established after the repeated function is configured or activated by the SLRB configured or activated with the repeated function;

the step of sending the mapping relation indication information to the terminal includes: and sending the mapping relation between the QoS grade group and the logic channel group and the mapping relation between the logic channel and the logic channel group established after the repeat function is configured or activated by the SLRB configured or activated with the repeat function to the terminal.

The auxiliary information includes an identifier of a logical channel established by the SLRB configured or activated with the repeat function by the terminal after the repeat function is configured or activated, and a corresponding QoS parameter.

Fourthly, the step of determining mapping relationship indication information between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated includes: determining a mapping relation between a logical channel and a logical channel group by using the QoS parameters corresponding to all SLRBs and whether the SLRBs are configured or activated with a repeat function according to the auxiliary information sent by the terminal;

the step of sending the mapping relation indication information to the terminal includes: and sending the mapping relation between the logic channels and the logic channel group of the SLRB to the terminal.

The auxiliary information comprises logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information and indication information indicating association relation between one SLRB and a plurality of corresponding logical channels for the SLRBs with the repeat function configured or activated.

Further, before receiving the auxiliary information sent by the terminal, the data transmission method further includes: transmitting a repeat function configuration or reconfiguration signaling for the SLRB to the terminal; and/or transmitting a repeat function activation or deactivation signaling for the SLRB to the terminal.

In this embodiment of the present invention, before determining the mapping relationship indication information between the logical channel and the logical channel group used by the direct communication interface after the repetition function is configured or activated, the data transmission method further includes: determining whether the terminal configures or activates a repeat function according to auxiliary information stored by network side equipment or sent by the terminal; and if so, executing the step of determining the mapping relation indication information between the logical channels and the logical channel groups used by the direct communication interface after the repeated function is configured or activated.

The data transmission method provided by the embodiment of the invention is further described below by combining the terminal and the network side device.

In view of the above technical problems, embodiments of the present invention provide a data transmission method to ensure that duplicate data can be transmitted through different physical resources; the method mainly comprises the following steps: the method comprises the steps that a terminal reports auxiliary information related to the Silink duplicate, the network side equipment judges whether the terminal is configured or activated according to the auxiliary information related to the Silink duplicate reported by the terminal or the stored information related to the terminal, if the Silink duplicate is activated, the network side equipment configures the corresponding relation between a Silink logical channel and an LCG for the terminal, and therefore buffer area state information corresponding to a plurality of different logical channels corresponding to SLRBs with duplicate functions can be reported to a network through different LCGs.

The method specifically includes the following parts (the mapping relationship of the logical channels referred to below may specifically be a mapping relationship for LC IDs; the mapping relationship of the logical channel groups referred to below may specifically be a mapping relationship for LCG IDs; these two may be used in combination freely, and are not limited here):

in the first part, the triggering condition of the Sidelink duty related auxiliary information reported by the terminal to the network side device includes one or a combination of the following:

receiving a Sidelink duplication configuration or reconfiguration signaling sent by a network side;

receiving a Sidelink duty activation or deactivation signaling sent by a network side;

the terminal decides to activate or deactivate a certain Sidelink duty at its own discretion.

The second part, the content of the Sidelink duty related auxiliary information reported by the terminal to the network side device includes but is not limited to one or a combination of the following:

-a) indication information whether the terminal is configured or activated for Sidelink duty;

b) QoS parameter indication information corresponding to SLRB with Sidelink duty configured or activated by the terminal;

c) LCID (logical channel identity) and QoS (quality of service) parameters of a logical channel for the replication newly established on the Silelink for the terminal after the terminal configures or activates the Silelink replication;

-d) logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information of which logical channels are for the same duplicate SLRB.

Wherein, c) and d) may specifically correspond to the case that the terminal determines to activate or deactivate a certain Sidelink duty by itself.

The QoS parameter indication information may be PPPP or other QoS parameters, and is not limited herein.

The third part is that the ancillary information related to the Sidelink duty reported by the terminal to the network side device is the content a), or the network side device stores the configuration or activation information of the Sidelink duty of the terminal, the network side device configures the mapping relationship indication information between the Sidelink logical channel and the LCG for the terminal, and the specific configuration information may be:

-configuring N LCG IDs for each QoS class group, N being equal to the maximum number of logical channels that a duplicate SLRB may correspond to.

Fourth, the ancillary information related to the Sidelink duty reported by the terminal to the network side device is the content b), or the network side device stores the terminal Sidelink duty configuration or activation information, the network side device configures the mapping relationship indication information between the Sidelink logical channel and the LCG for the terminal, and the specific configuration information may be:

-configuring N LCG IDs only for the QoS class groups corresponding to the duplicate SLRBs configured or activated, N being equal to the maximum number of logical channels possible for one duplicate SLRB.

The fifth part is that the Sidelink duty related auxiliary information reported by the terminal to the network side device is the content c), the network side device configures mapping relation indication information between the Sidelink logical channel and the LCG for the terminal, and the specific configuration information may be:

-configuring an independent LCG ID for the LCID of the newly established logical channel for the duration on Sidelink according to its QoS parameters.

The sixth part is that the Sidelink duty related auxiliary information reported by the terminal to the network side device is the content d), the network side device configures mapping relation indication information between the Sidelink logical channel and the LCG for the terminal, and the specific configuration information may be:

the network side determines the mapping relation indication information between each logical channel ID and LCG ID directly according to the QoS parameters of all SLRBs and whether the SLRBs are configured or activated by duplification, and configures the mapping relation indication information between each logical channel ID and LCG ID of the Sidelink to the terminal.

The scheme provided by the embodiment of the invention is illustrated as follows:

example 1: the network side device operates based on the Sidelink replication related information stored by itself, and the mapping relationship indication information between the Sidelink logical channel (including the logical channel used by the direct communication interface after the repeat function is configured or activated) and the LCG ID adopts the manner mentioned in the third section, and the basic flow is as shown in fig. 6, and includes:

step 61: the network side equipment judges whether the terminal is configured or activated with the Silelink duplicate, if so, the step 62 is executed;

for the network terminal, a possible way is to control whether the terminal activates the Sidelink duty by the network side, and in this case, the terminal reports the information of the currently established SLRB information, the QoS parameter (such as PPPP and/or delay requirement) of each SLRB, and the like to the network side device.

And the network side equipment judges whether Sidelink duplicate is activated for the terminal according to the information reported by the terminal, and sends Sidlink duplicate configuration or activation signaling to the terminal. At this time, the network side device may store the SLRB information and QoS parameter information of the terminal with the Sidelink duty activated.

Step 62: determining mapping relation indication information between the Sidelink logical channel and the LCG ID;

if the network side device determines that the terminal configures or activates the Sidelink replication according to the terminal Sidelink replication configuration or activation information stored by the network side device, the network side device configures mapping relationship indication information between the Sidelink logical channel and the LCG for the terminal, and the specific configuration information may be:

and configuring N LCG IDs aiming at each QoS level group corresponding to the SLRB with the configured or activated sidelink replication, wherein N is equal to the maximum number of the logical channels possibly corresponding to one replication SLRB.

And step 63: the network side equipment sends mapping relation indication information (configuration instruction) between the Sidelink logical channel and the LCG ID to the terminal.

The specific content contained in the signaling is the LCG ID information corresponding to each QoS class group.

Step 64: and organizing the BSR MAC CE according to the mapping relation indication information between the Sidelink logical channel and the LCG ID.

And the terminal determines the mapping relation between the Silelink logical channel and the LCG ID corresponding to the SLRB according to the QoS parameter (such as PPPP) corresponding to each SLRB and the mapping relation indication information between the QoS parameter configured by the network and the LCG ID. For the duplicate SLRB, different logical channels thereof respectively correspond to different LCG IDs configured by the network.

Step 65: and the terminal sends a Sidelink BSR MAC CE to the network side.

Example 2: the network side device operates based on the auxiliary information reported by the terminal, where the auxiliary information is the content a), the Sidelink logical channel (including the logical channel used by the direct communication interface after the repeat function is configured or activated), and the LCG ID mapping relationship indication information, in the manner mentioned in the third section, and a basic flow is as shown in fig. 7, and includes:

step 70: the terminal reports the relevant auxiliary information of the Silelink duplicate;

the triggering condition of the Sidelink duty related auxiliary information reported by the terminal to the network side equipment comprises one or a combination of the following conditions:

receiving a Silelink duplicate configuration or reconfiguration signaling sent by a network side;

receiving a Sidelink duplicate activation or deactivation signaling sent by a network side;

the terminal decides to activate or deactivate a certain Sidelink duty by itself.

The content of the Sidelink duty-related auxiliary information reported by the terminal to the network side device may be indication information indicating whether the terminal configures or activates the Sidelink duty.

Step 71: the network side equipment judges whether the terminal is configured or activated with the Silelink duplicate, if so, step 72 is executed;

and the network side equipment judges that the terminal activates the Sidelink duty according to the auxiliary information related to the Sidelink duty reported by the terminal.

Step 72: determining mapping relation indication information between the Sidelink logical channel and the LCG ID;

the network side device in the embodiment of the present invention configures mapping relationship indication information between the Sidelink logical channel and the LCG for the terminal, and the specific configuration information may be:

Step 73: the network side equipment sends mapping relation indication information (configuration instruction) between the Sidelink logical channel and the LCG ID to the terminal.

Step 74: and organizing the BSR MAC CE according to the mapping relation indication information between the Sidelink logical channel and the LCG ID.

Step 75: and the terminal sends a Sidelink BSR MAC CE to the network side.

Example 3: the network side device operates based on the Sidelink replication related information stored by itself, and the Sidelink logical channel (including the logical channel used by the direct communication interface after the repeat function is configured or activated) and the LCG ID mapping relationship indication information adopt the manner mentioned in the fourth part, and the basic flow is as shown in fig. 8, and includes:

step 81: the network side equipment judges whether the terminal is configured or activated with the Silelink duplicate, if so, the step 82 is executed;

Step 82: determining mapping relation indication information between the Sidelink logical channel and the LCG ID;

only for the QoS level group corresponding to the SLRB with duplification configured or activated, configuring N LCG IDs, wherein N is equal to the maximum number of the logical channels possibly corresponding to one duplification SLRB. For other QoS class groups, only one corresponding LCG ID is configured.

Step 83: the network side equipment sends mapping relation indication information (configuration instruction) between the Sidelink logical channel and the LCG ID to the terminal.

Step 84: and organizing the BSR MAC CE according to the mapping relation indication information between the Sidelink logical channel and the LCG ID.

Step 85: and the terminal sends a Sidelink BSR MAC CE to the network side.

Example 4: the network side device operates based on the auxiliary information reported by the terminal, where the auxiliary information is the content b), the Sidelink logical channel (including the logical channel used by the direct communication interface after the repeat function is configured or activated) and the LCG ID mapping relationship indication information, in the manner mentioned in the fourth section, and the basic flow is as shown in fig. 9, and includes:

step 90: the terminal reports the relevant auxiliary information of the Silelink duplicate;

The content of the Sidelink duty-related auxiliary information reported by the terminal to the network side device may be QoS parameter indication information corresponding to the SLRB in which the Sidelink duty is configured or activated by the terminal.

Step 91: the network side equipment judges whether the terminal is configured or activated with the Silelink duplicate, if so, the step 92 is executed;

And step 92: determining mapping relation indication information between the Sidelink logical channel and the LCG ID;

Step 93: the network side equipment sends mapping relation indication information (configuration instruction) between the Sidelink logical channel and the LCG ID to the terminal.

For example, if the slpb with PPPP ═ 1 has sidelink replication enabled and replication SLRB corresponds to 2 logical channels, then two corresponding LCG IDs are configured for the QoS class group with PPPP ═ 1.

Step 94: and organizing the BSR MAC CE according to the mapping relation indication information between the Sidelink logical channel and the LCG ID.

Step 95: and the terminal sends a Sidelink BSR MAC CE to the network side.

Example 5: the network side device operates based on the auxiliary information reported by the terminal, where the auxiliary information is the content c), the Sidelink logical channel (including the logical channel used by the direct communication interface after the repeat function is configured or activated), and the LCG ID mapping relationship indication information, in the manner mentioned in the fifth section, and a basic flow is as shown in fig. 10, and includes:

step 100: the terminal reports the relevant auxiliary information of the Silelink duplicate;

The content of the Sidelink replication related auxiliary information reported by the terminal to the network side device may be configured or activated by the terminal, and may be directed to the LCID and QoS parameters of the logical channel for replication newly established on the Sidelink by the terminal.

Step 101: the network side equipment judges whether the terminal is configured or activated with the Silelink duplicate, if so, the step 102 is executed;

Step 102: determining mapping relation indication information between the Sidelink logical channel and the LCG ID;

and configuring an independent LCG ID for the LCID of the newly established logical channel for the duration on the Sidelink according to the QoS parameter of the LCID. The specific embodiment may be that N LCG IDs are configured for the QoS class group to which the QoS parameters corresponding to the SLRB of the Sidelink duty belong. N is equal to the maximum number of logical channels that a duplicate SLRB may correspond to. The mapping relationship between the corresponding LCID and LCG ID may also be configured directly.

Step 103: the network side equipment sends mapping relation indication information (configuration instruction) between the Sidelink logical channel and the LCG ID to the terminal.

The specific content contained in the signaling is the LCG ID information corresponding to each QoS class group or contains the correspondence between the LCID and the LCG of the logical channel for the replication newly established on the Sidelink in addition to the LCG ID information corresponding to each QoS class group.

Step 104: and organizing the BSR MAC CE according to the mapping relation indication information between the Sidelink logical channel and the LCG ID.

And the terminal determines the mapping relation between the Sildelink logical channel and the LCG ID according to the QoS parameters (such as PPPP) corresponding to each SLRB and the mapping relation indication information between the QoS parameters and the LCG ID configured by the network or the mapping relation indication information between the LCG ID and the LCG ID.

That is, the terminal determines the mapping relationship between the Sidelink logical channel and the LCG ID according to the QoS parameter (such as PPPP) corresponding to each SLRB and the mapping relationship indication information between the QoS parameter configured by the network and the LCG ID; alternatively, the first and second electrodes may be,

and the terminal determines the mapping relation between the Sidelink logical channel and the LCG ID according to the QoS parameters (such as PPPP) corresponding to each SLRB, the mapping relation indication information between the QoS parameters configured by the network and the LCG ID and the mapping relation indication information between the LCG ID and the LCID.

Step 105: and the terminal sends a Sidelink BSR MAC CE to the network side.

Example 6: the network side device operates based on the auxiliary information reported by the terminal, where the auxiliary information is the content d), the Sidelink logical channel (including the logical channel used by the direct communication interface after the repeat function is configured or activated) and the LCG ID mapping relationship indication information, in the manner mentioned in the sixth section, and a basic flow is as shown in fig. 11, and includes:

step 110: the terminal reports the relevant auxiliary information of the Silelink duplicate;

The content of the Sidelink replication related auxiliary information reported by the terminal to the network side device may be the logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information of which logical channels are for the same replication SLRB.

Step 111: the network side device judges whether the terminal configures or activates the Sidelink duty, if yes, the step 112 is executed;

Step 112: determining mapping relation indication information between the Sidelink logical channel and the LCG ID;

the network side directly determines the mapping relation between each logic channel ID and LCG ID according to the QoS parameters of all SLRBs and whether the SLRBs are configured or activated by duplification, and configures the mapping relation between each logic channel ID and LCG ID of the Sidelink to the terminal.

Step 113: the network side equipment sends mapping relation indication information (configuration instruction) between the Sidelink logical channel and the LCG ID to the terminal.

The specific content contained in the signaling is the mapping relationship between each logical channel on the Sidelink and the LCG ID.

Step 114: and organizing the BSR MAC CE according to the mapping relation indication information between the Sidelink logical channel and the LCG ID.

And the terminal determines the mapping relation between the Sidelink logical channel and the LCG ID according to the mapping relation indication information between the LCID and the LCG ID on each Sidelink.

Step 115: and the terminal sends a Sidelink BSR MAC CE to the network side.

As can be seen from the above, the scheme provided by the embodiment of the present invention may specifically be: the method comprises the steps that a terminal reports auxiliary information related to the Silink duplicate, the network side equipment judges whether the terminal is configured or activated according to the auxiliary information related to the Silink duplicate reported by the terminal or the stored information related to the terminal, if the Silink duplicate is activated, the network side equipment configures the corresponding relation between a Silink logical channel and an LCG for the terminal, and therefore buffer area state information corresponding to a plurality of different logical channels corresponding to SLRBs with duplicate functions can be reported to a network through different LCGs.

To sum up, the embodiment of the present invention provides a method for ensuring that duplicate data can be transmitted through different physical resources; the method can ensure that the data of different logical channels of the duplicate can be sent to the network through different LCG IDs, thereby ensuring that the network can schedule the data of different logical channels corresponding to the duplicate bearer to different resources for transmission.

The terminal provided by the embodiment of the invention receives the mapping relation indication information between the logical channels and the logical channel groups, which is used by the direct communication interface sent by the network side equipment after the repeated function is configured or activated; organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

As shown in fig. 12, the terminal provided in the embodiment of the present invention includes:

a processor 121; and a memory 123 connected to the processor 121 through a bus interface 122, wherein the memory 123 is used for storing programs and data used by the processor 121 in executing operations, and when the processor 121 calls and executes the programs and data stored in the memory 123, the following processes are performed:

receiving, by the transceiver 124, mapping relationship indication information between a logical channel and a logical channel group, which is used by a direct communication interface sent by a network-side device after a repeat function is configured or activated;

Among other things, the transceiver 124 is coupled to the bus interface 122 for receiving and transmitting data under the control of the processor 121.

It should be noted that in fig. 12, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 121 and various circuits of memory represented by memory 123 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 124 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 125 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 121 is responsible for managing a bus architecture and general processing, and the memory 123 may store data used by the processor 121 when performing operations.

Those skilled in the art will appreciate that all or part of the steps for implementing the above embodiments may be performed by hardware, or may be instructed to be performed by associated hardware by a computer program that includes instructions for performing some or all of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.

Regarding the specific flow executed by the processor, the embodiment of the present invention provides the following four examples, which may exist alone or coexist in any number of ways, and are not limited herein:

first, the processor is specifically configured to: receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment through the transceiver; each QoS class group corresponds to N logic channel groups, wherein N is equal to the number of logic channels corresponding to one SLRB (synchronization signaling bridge) with a repeat function configured or activated; for the SLRB with the configured or activated repeating function, according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group, respectively mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups, and organizing BSR MAC CE.

Further, the processor is further configured to: before receiving indication information of a mapping relationship between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated, which is sent by network side equipment, reporting auxiliary information to the network side equipment through the transceiver, wherein the auxiliary information includes indication information of whether a terminal SLRB configures or activates the repeat function.

Second, the processor is specifically configured to: receiving a mapping relation between a service quality QoS class group and a logic channel group sent by network side equipment through the transceiver; for the SLRBs with the repeat function configured or activated, the corresponding QoS level group corresponds to N logical channel groups, and N is equal to the number of the logical channels corresponding to one SLRB with the repeat function configured or activated; for the SLRB with the configured or activated repeating function, according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group, respectively mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups, and organizing BSR MAC CE.

Further, the processor is further configured to: before receiving mapping relation indication information between a logical channel and a logical channel group used by a direct communication interface sent by network side equipment after a repeat function is configured or activated, reporting auxiliary information to the network side equipment through the transceiver, wherein the auxiliary information comprises QoS parameter indication information corresponding to an SLRB (subscriber line bridge) with the repeat function configured or activated by a terminal.

Thirdly, the processor is specifically configured to: receiving, by the transceiver, a mapping relationship between a quality of service (QoS) class group and a logical channel group transmitted by a network side device and a mapping relationship between a logical channel and a logical channel group established after a repeat function is configured or activated by an SLRB configured or activated with the repeat function; for the SLRB with the repeat function configured or activated, determining the mapping relation between the logical channels and the logical channel groups established by the SLRB before the repeat function is configured or activated and the mapping relation between the logical channels and the logical channel groups established by the SLRB after the repeat function is configured or activated according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel groups, and mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups respectively to organize the BSR MAC CE.

Further, the processor is further configured to: before receiving indication information of a mapping relationship between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated, which is sent by a network side device, reporting auxiliary information to the network side device through the transceiver, wherein the auxiliary information includes an identifier of the logical channel and a corresponding QoS parameter, which are established after the terminal configures or activates the repeat function SLRB.

Fourthly, the processor is specifically configured to: receiving a mapping relation between a logical channel and a logical channel group of an SLRB (synchronization Link Block) transmitted by network side equipment through the transceiver; for the SLRB with the configured or activated repeating function, according to the mapping relation between the logical channel and the logical channel group, mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups respectively, and organizing BSR MAC CE.

Further, the processor is further configured to: before receiving mapping relation indication information between a logical channel and a logical channel group used by a direct communication interface after a repeat function is configured or activated, the direct communication interface sent by a network side device reports auxiliary information to the network side device through the transceiver, wherein the auxiliary information comprises logical channel numbers and QoS parameter indication information corresponding to all SLRBs of a terminal, and indication information indicating association relation between one SLRB and a plurality of corresponding logical channels for the SLRBs with the repeat function configured or activated.

In the embodiment of the present invention, the triggering condition for reporting the auxiliary information to the network side device includes: receiving a repeated function configuration or reconfiguration signaling aiming at the SLRB, which is sent by network side equipment, through the transceiver; and/or receiving a repeat function activation or deactivation signaling for the SLRB, which is sent by the network side equipment, through the transceiver; and/or the terminal decides to configure or de-configure or activate or deactivate the repeat function of the preset SLRB by itself.

The implementation embodiments of the data transmission method applied to the terminal are all applicable to the embodiment of the terminal, and the same technical effect can be achieved.

The network side equipment provided by the embodiment of the invention determines the mapping relation indication information between the logical channels and the logical channel groups, which are used by the direct communication interface after the repeated function is configured or activated; sending the mapping relation indication information to a terminal, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

Specifically, as shown in fig. 13, the base station of the embodiment of the present invention includes:

a processor 131; and a memory 133 connected to the processor 131 through a bus interface 132, wherein the memory 133 is used for storing programs and data used by the processor 131 when executing operations, and when the processor 131 calls and executes the programs and data stored in the memory 133, the following processes are performed:

the mapping relation indication information is sent to the terminal through the transceiver 134, and the buffer status report BSR MAC CE sent by the terminal according to the mapping relation indication information is received.

Among other things, the transceiver 134 is coupled to the bus interface 132 for receiving and transmitting data under the control of the processor 131.

It should be noted that in fig. 13, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 131 and various circuits of memory represented by memory 133 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 134 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 131 is responsible for managing the bus architecture and general processing, and the memory 133 may store data used by the processor 131 in performing operations.

first, the processor is specifically configured to: according to auxiliary information stored by network side equipment or sent by a terminal, configuring N logical channel groups aiming at a service quality QoS (quality of service) grade group corresponding to each SLRB, wherein N is equal to the number of logical channels corresponding to one SLRB with a repeated function configured or activated; and sending the mapping relation between the QoS grade group and the logic channel group to the terminal through the transceiver.

Second, the processor is specifically configured to: according to auxiliary information stored by network side equipment or sent by a terminal, configuring N logical channel groups aiming at a service quality QoS level group corresponding to an SLRB (service quality and quality control) which is configured or activated with a repeating function, wherein N is equal to the number of logical channels corresponding to one SLRB which is configured or activated with the repeating function; configuring a corresponding logical channel group aiming at a QoS grade group corresponding to an SLRB which is not configured or activates a repeat function; and sending the mapping relation between the QoS grade group and the logic channel group to the terminal through the transceiver.

Thirdly, the processor is specifically configured to: and according to the auxiliary information sent by the terminal, aiming at the logical channel which is established on the direct communication link and used for repeating the direct communication link, configuring an independent logical channel group for the logical channel according to the QoS parameter of the logical channel.

Specifically, the processor is specifically configured to: configuring a corresponding logical channel group aiming at a logical channel established after the repeated function is configured or activated by the SLRB configured or activated with the repeated function; and sending the mapping relation between the QoS grade group and the logical channel group and the mapping relation between the logical channel and the logical channel group established after the repeat function is configured or activated by the SLRB configured or activated with the repeat function to the terminal through the transceiver.

Fourthly, the processor is specifically configured to: determining a mapping relation between a logical channel and a logical channel group by using the QoS parameters corresponding to all SLRBs and whether the SLRBs are configured or activated with a repeat function according to the auxiliary information sent by the terminal; and sending the mapping relation between the logic channel and the logic channel group of the SLRB to the terminal through the transceiver.

Further, the processor is further configured to: before receiving the auxiliary information sent by the terminal, sending a repeated function configuration or reconfiguration signaling aiming at the SLRB to the terminal through the transceiver; and/or transmitting a repeat function activation or deactivation signaling for the SLRB to the terminal.

In an embodiment of the present invention, the processor is further configured to: before determining the mapping relation indication information between the logical channel and the logical channel group used by the direct communication interface after the repeat function is configured or activated, determining whether the terminal configures or activates the repeat function according to auxiliary information stored by network side equipment or sent by the terminal;

The implementation embodiments of the data transmission method applied to the network side device are all applicable to the embodiment of the network side device, and the same technical effect can be achieved.

The implementation embodiments of the data transmission method applied to the terminal are all applicable to the embodiment of the computer-readable storage medium, and the same technical effects can be achieved.

The implementation embodiments of the data transmission method applied to the network side device are all applicable to the embodiment of the computer-readable storage medium, and the same technical effect can be achieved.

An embodiment of the present invention further provides a data transmission device, which is applied to a terminal, and as shown in fig. 14, the data transmission device includes:

a first receiving module 141, configured to receive mapping relationship indication information between a logical channel and a logical channel group, where the logical channel is used by a direct communication interface after a repeat function is configured or activated, and the mapping relationship indication information is sent by a network-side device;

the first processing module 142 is configured to organize a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information, and send the buffer status report BSR MAC CE to the network side device.

The data transmission device provided by the embodiment of the invention receives the mapping relation indication information between the logic channel and the logic channel group, which is used by the direct communication interface sent by the network side equipment after the repeated function is configured or activated; organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

For specific implementation of the first receiving module 141 and the first processing module 142, the following four examples are provided in the embodiment of the present invention, and these four examples may exist alone or may coexist in any number of ways, and are not limited herein:

first, the first receiving module includes: the first receiving submodule is used for receiving the mapping relation between the QoS class group and the logic channel group sent by the network side equipment; each QoS class group corresponds to N logic channel groups, wherein N is equal to the number of logic channels corresponding to one SLRB (synchronization signaling bridge) with a repeat function configured or activated;

the first processing module comprises: and the first processing submodule is used for mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group and organizing the BSR MAC CE for the SLRB with the configured or activated repeat function.

Further, the data transmission apparatus further includes: the first reporting module is configured to report auxiliary information to the network side device before receiving indication information of a mapping relationship between a logical channel and a logical channel group, where the mapping relationship is used by a direct communication interface sent by the network side device after a repetition function is configured or activated, where the auxiliary information includes indication information of whether a repetition function is configured or activated by an SLRB of a terminal.

Second, the first receiving module includes: the second receiving submodule is used for receiving the mapping relation between the QoS class group and the logic channel group sent by the network side equipment; for the SLRBs with the repeat function configured or activated, the corresponding QoS level group corresponds to N logical channel groups, and N is equal to the number of the logical channels corresponding to one SLRB with the repeat function configured or activated;

the first processing module comprises: and the second processing submodule is used for mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups according to the corresponding QoS parameters and the mapping relation between the QoS level group and the logical channel group and organizing the BSR MAC CE for the SLRB with the configured or activated repeat function.

Further, the data transmission apparatus further includes: and a second reporting module, configured to report, to the network side device, auxiliary information before receiving indication information of a mapping relationship between a logical channel and a logical channel group, where the mapping relationship is used by a direct communication interface sent by the network side device after a repetition function is configured or activated, where the auxiliary information includes QoS parameter indication information corresponding to an SLRB where the repetition function is configured or activated by the terminal.

Third, the first receiving module includes: a third receiving submodule, configured to receive a mapping relationship between a QoS class group and a logical channel group, which are sent by a network side device, and a mapping relationship between a logical channel and a logical channel group, which are established after a repeat function is configured or activated by an SLRB configured or activated with the repeat function;

the first processing module comprises: and a third processing submodule, configured to, for an SLRB with a repeat function configured or activated, determine, according to a QoS parameter corresponding to the SLRB and a mapping relationship between a QoS class group and a logical channel group, a mapping relationship between a logical channel and a logical channel group established by the SLRB before the repeat function is configured or activated and a mapping relationship between a logical channel and a logical channel group established by the SLRB after the repeat function is configured or activated, and map a plurality of logical channels corresponding to the SLRB to different logical channel groups, respectively, so as to organize BSR MAC CEs.

Further, the data transmission apparatus further includes: and a third reporting module, configured to report, to the network side device, auxiliary information before receiving information indicating a mapping relationship between a logical channel and a logical channel group, where the information is used by a direct communication interface after a repeat function is configured or activated, where the auxiliary information includes an identifier of a logical channel established by an SLRB configured or activated by a terminal after the repeat function is configured or activated, and a corresponding QoS parameter.

Fourth, the first receiving module includes: the fourth receiving submodule is used for receiving the mapping relation between the logical channel and the logical channel group of the SLRB sent by the network side equipment;

the first processing module comprises: and the fourth processing submodule is used for mapping a plurality of logical channels corresponding to the SLRB to different logical channel groups according to the mapping relation between the logical channel and the logical channel group and organizing the BSR MAC CE for the SLRB with the configured or activated repeating function.

Further, the data transmission apparatus further includes: and a fourth reporting module, configured to report, to the network side device, auxiliary information before receiving indication information of a mapping relationship between a logical channel and a logical channel group, where the mapping relationship is used by a direct communication interface sent by the network side device after a repeat function is configured or activated, where the auxiliary information includes logical channel numbers and QoS parameter indication information corresponding to all SLRBs of the terminal, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for SLRBs to which the repeat function is configured or activated.

The implementation embodiments of the data transmission method applied to the terminal are all applicable to the embodiment of the data transmission device, and the same technical effects can be achieved.

An embodiment of the present invention further provides a data transmission apparatus, which is applied to a network side device, as shown in fig. 15, and includes:

a first determining module 151, configured to determine mapping relationship indication information between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated;

a first transceiver module 152, configured to send the mapping relationship indication information to a terminal, and receive a buffer status report BSR MAC CE sent by the terminal according to the mapping relationship indication information.

The data transmission device provided by the embodiment of the invention determines the mapping relation indication information between the logic channel and the logic channel group used by the direct communication interface after the repeated function is configured or activated; sending the mapping relation indication information to a terminal, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information; therefore, the buffer area state information corresponding to a plurality of different logic channels corresponding to the SLRB with the duplicate function configured or activated can be reported to the network through different LCGs; the network can be ensured to dispatch the data of different logical channels corresponding to the duplicate bearer to different resources for transmission; the problem that the data of the duplicate SLRB cannot be scheduled to different physical resources when the network side schedules the sidelink resources in the prior art is well solved.

For specific implementation of the first determining module 151 and the first transceiver module 152, the following four examples are provided in the embodiment of the present invention, and these four examples may exist alone or may coexist in any number of ways, and are not limited herein:

first, the first determining module comprises: a first configuration submodule, configured to configure, according to auxiliary information stored in a network side device or sent by a terminal, N logical channel groups for a quality of service QoS class group corresponding to each SLRB, where N is equal to the number of logical channels corresponding to one SLRB in which a repeat function is configured or activated;

the first transceiver module includes: and the first sending submodule is used for sending the mapping relation between the QoS grade group and the logic channel group to the terminal.

Second, the first determining module comprises: a second configuration submodule, configured to configure N logical channel groups for a quality of service QoS class group corresponding to an SLRB configured or activated with a repetition function according to auxiliary information stored by a network side device or transmitted by a terminal, where N is equal to the number of logical channels corresponding to one SLRB configured or activated with a repetition function; configuring a corresponding logical channel group aiming at a QoS grade group corresponding to an SLRB which is not configured or activates a repeat function;

the first transceiver module includes: and the second sending submodule is used for sending the mapping relation between the QoS grade group and the logic channel group to the terminal.

Third, the first determining module includes: and the third configuration submodule is used for configuring an independent logical channel group for the logical channel which is established on the direct communication link and used for repeating the direct communication link according to the auxiliary information sent by the terminal and the QoS parameter.

Specifically, the third configuration sub-module includes: a first configuration unit, configured to configure a corresponding logical channel group for a logical channel established after configuring or activating the repeat function for the SLRB configured or activated with the repeat function;

the first transceiver module includes: and a third sending submodule, configured to send the mapping relationship between the QoS class group and the logical channel group and the mapping relationship between the logical channel and the logical channel group, which is established after the repeat function is configured or activated by the SLRB configured or activated with the repeat function, to the terminal.

Fourth, the first determining module includes: a first determining submodule, configured to determine, according to auxiliary information sent by a terminal, a mapping relationship between a logical channel and a logical channel group by using quality of service QoS parameters corresponding to all SLRBs and whether the SLRB configures or activates a repeat function;

the first transceiver module includes: and the fourth sending submodule is used for sending the mapping relation between the logic channel and the logic channel group of the SLRB to the terminal.

Further, the data transmission apparatus further includes: a first sending module, configured to send a repeat function configuration or reconfiguration signaling for the SLRB to the terminal before receiving the auxiliary information sent by the terminal; and/or transmitting a repeat function activation or deactivation signaling for the SLRB to the terminal.

In this embodiment of the present invention, the data transmission apparatus further includes: a second determining module, configured to determine whether the terminal configures or activates the repetition function according to auxiliary information stored by the network side device or sent by the terminal before determining information indicating a mapping relationship between a logical channel and a logical channel group used by the direct communication interface after the repetition function is configured or activated; and if so, executing the operation of determining the mapping relationship indication information between the logical channels and the logical channel groups, which are used by the direct communication interface after the repeat function is configured or activated.

The implementation embodiments of the data transmission method applied to the network side device are all applicable to the embodiment of the data transmission apparatus, and the same technical effect can be achieved.

It should be noted that many of the functional components described in this specification are referred to as modules or sub-modules or units in order to more particularly emphasize their implementation independence.

In embodiments of the present invention, the modules, sub-modules, and units may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A data transmission method is applied to a terminal, and is characterized by comprising the following steps:

organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the BSR MAC CE to the network side equipment;

before receiving information indicating a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by a network side device after a repeat function is configured or activated, the method further includes:

reporting auxiliary information to network side equipment, wherein the auxiliary information comprises indication information of whether the SLRB of the terminal configures or activates a repeat function; or, the QoS parameter indication information corresponding to the SLRB in which the terminal configures or activates the repeat function is included; or, the identifier of the logical channel and the corresponding QoS parameter, which are established after the terminal configures or activates the repeat function by the SLRB having configured or activated the repeat function; or, the information includes logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for the SLRBs to which the repeat function is configured or activated.

2. The data transmission method according to claim 1, wherein the step of receiving the information indicating the mapping relationship between the logical channels and the logical channel groups, which is used by the direct communication interface sent by the network side device after the repeat function is configured or activated, comprises:

3. The data transmission method according to claim 1, wherein the step of receiving the information indicating the mapping relationship between the logical channels and the logical channel groups, which is used by the direct communication interface sent by the network side device after the repeat function is configured or activated, comprises:

4. The data transmission method according to claim 1, wherein the step of receiving the information indicating the mapping relationship between the logical channels and the logical channel groups, which is used by the direct communication interface sent by the network side device after the repeat function is configured or activated, comprises:

5. The data transmission method according to claim 1, wherein the step of receiving the information indicating the mapping relationship between the logical channels and the logical channel groups, which is used by the direct communication interface sent by the network side device after the repeat function is configured or activated, comprises:

6. The data transmission method according to claim 1, wherein the triggering condition for reporting the auxiliary information to the network side device includes:

7. A data transmission method is applied to network side equipment and is characterized by comprising the following steps:

sending the mapping relation indication information to a terminal, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information;

before sending the mapping relation indication information to the terminal, the method further includes:

receiving auxiliary information sent by a terminal, wherein the auxiliary information comprises indication information of whether a repeat function is configured or activated by an SLRB of the terminal; or, the QoS parameter indication information corresponding to the SLRB in which the terminal configures or activates the repeat function is included; or, the identifier of the logical channel and the corresponding QoS parameter, which are established after the terminal configures or activates the repeat function by the SLRB having configured or activated the repeat function; or, the information includes logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for the SLRBs to which the repeat function is configured or activated.

8. The data transmission method according to claim 7, wherein the step of determining information indicating a mapping relationship between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated comprises:

9. The data transmission method according to claim 7, wherein the step of determining information indicating a mapping relationship between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated comprises:

10. The data transmission method according to claim 7, wherein the step of determining information indicating a mapping relationship between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated comprises:

11. The data transmission method according to claim 10, wherein the step of configuring an independent logical channel group for the logical channel for direct communication link repetition established on the direct communication link according to the QoS parameter thereof comprises:

12. The data transmission method according to claim 7, wherein the step of determining information indicating a mapping relationship between logical channels and logical channel groups used by the direct communication interface after the repeat function is configured or activated comprises:

13. The data transmission method according to any one of claims 8 to 12, wherein before receiving the auxiliary information sent by the terminal, the data transmission method further comprises:

14. The data transmission method according to claim 7, wherein before determining the information indicating the mapping relationship between the logical channels and the logical channel groups used by the direct communication interface after the repeat function is configured or activated, the data transmission method further comprises:

15. A terminal comprising a memory, a processor, a transceiver, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

organizing a buffer status report media access control layer control unit (BSR MAC CE) according to the mapping relation indication information, and sending the buffer status report media access control layer control unit (BSR MAC CE) to the network side equipment through the transceiver;

wherein the processor is further configured to:

before receiving indication information of a mapping relationship between a logical channel and a logical channel group used by a direct communication interface sent by network side equipment after a repeat function is configured or activated, reporting auxiliary information to the network side equipment through the transceiver, wherein the auxiliary information comprises indication information of whether a terminal SLRB configures or activates the repeat function; or, the QoS parameter indication information corresponding to the SLRB in which the terminal configures or activates the repeat function is included; or, the identifier of the logical channel and the corresponding QoS parameter, which are established after the terminal configures or activates the repeat function by the SLRB having configured or activated the repeat function; or, the information includes logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for the SLRBs to which the repeat function is configured or activated.

16. The terminal of claim 15, wherein the processor is further configured to:

17. The terminal of claim 15, wherein the processor is further configured to:

18. The terminal of claim 15, wherein the processor is further configured to:

19. The terminal of claim 15, wherein the processor is further configured to:

20. The terminal of claim 15, wherein the trigger condition for reporting the auxiliary information to the network-side device comprises:

21. A network-side device comprising a memory, a processor, a transceiver, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

sending the mapping relation indication information to a terminal through the transceiver, and receiving a buffer status report media access control layer control unit (BSR MAC CE) sent by the terminal according to the mapping relation indication information;

wherein the processor is further configured to:

before the mapping relation indication information is sent to the terminal, receiving auxiliary information sent by the terminal through the transceiver, wherein the auxiliary information comprises indication information of whether the SLRB of the terminal is configured or activated with a repeat function; or, the QoS parameter indication information corresponding to the SLRB in which the terminal configures or activates the repeat function is included; or, the identifier of the logical channel and the corresponding QoS parameter, which are established after the terminal configures or activates the repeat function by the SLRB having configured or activated the repeat function; or, the information includes logical channel numbers corresponding to all SLRBs of the terminal, QoS parameter indication information, and indication information indicating an association relationship between one SLRB and a plurality of corresponding logical channels for the SLRBs to which the repeat function is configured or activated.

22. The network-side device of claim 21, wherein the processor is specifically configured to:

23. The network-side device of claim 21, wherein the processor is specifically configured to:

24. The network-side device of claim 21, wherein the processor is specifically configured to:

25. The network-side device of claim 24, wherein the processor is specifically configured to:

26. The network-side device of claim 21, wherein the processor is specifically configured to:

27. The network-side device of any one of claims 22-26, wherein the processor is further configured to:

28. The network-side device of claim 21, wherein the processor is further configured to:

29. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the data transmission method according to any one of claims 1 to 6.

30. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the data transmission method according to any one of claims 7 to 14.

31. A data transmission apparatus applied to a terminal, comprising:

a first processing module, configured to organize a buffer status report media access control layer control element BSR MAC CE according to the mapping relationship indication information, and send the buffer status report BSR MAC CE to the network side device;

32. A data transmission device is applied to network side equipment, and is characterized by comprising:

the first transceiver module is configured to send the mapping relationship indication information to a terminal, and receive a buffer status report BSR MAC CE sent by the terminal according to the mapping relationship indication information;

33. The data transmission apparatus of claim 32, wherein the data transmission apparatus further comprises: