WO2021026841A1

WO2021026841A1 - Method and device for transmitting a scheduling request

Info

Publication number: WO2021026841A1
Application number: PCT/CN2019/100662
Authority: WO
Inventors: 付喆; 卢前溪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2021-02-18
Also published as: CN113557779A; CN113557779B

Abstract

Provided are a method and device for transmitting a scheduling request (SR). The method and device can achieve effective data transmission during resource conflict. The method comprises: when a conflict occurs between a PUCCH resource for transmitting the SR and a PUSCH resource for transmitting an MAC PDU, the terminal device cancels the SR at a first moment, wherein the first moment is determined according to at least one of the following information: a transmission condition of the SR; a transmission condition of the MAC PDU, wherein the MAC PDU comprises a buffer status report (BSR) MAC CE, and the BSR MAC CE is used for bearing a BSR for triggering the SR; and a transmission condition of data to be transmitted on an LCH corresponding to the SR.

Description

Method and equipment for scheduling request transmission

Technical field

The embodiments of the present application relate to the field of communications, and more specifically, to a method and device for scheduling request (Scheduling Request, SR) transmission.

Background technique

In the 5G Industrial Internet of Things (IIoT), it is necessary to support the transmission of services such as Industrial Automation (Factory Automation), Transport Industry Automation, and Intelligent Power Distribution (Electrical Power Distribution) in 5G systems. Based on its transmission requirements, such as delay requirements and reliability requirements, a Time Sensitive Network (TSN) network or Time Sensitive Network (TSC) is introduced in the IIoT. In this scenario, different services have different transmission requirements. When resource conflicts occur between SR and uplink data, how the terminal device effectively transmits data becomes an urgent problem to be solved.

Summary of the invention

This application provides a method and equipment for SR transmission, which can realize effective data transmission when resource conflicts.

In the first aspect, a method for SR transmission is provided, including: when there is a conflict between the physical uplink control channel PUCCH resource used to transmit the SR and the physical uplink shared channel PUSCH resource used to transmit the medium access control protocol data unit MAC PDU , The terminal device cancels the SR at the first moment;

Wherein, the first moment is determined according to at least one of the following information:

The transmission situation of the SR;

The transmission situation of the MAC PDU;

The transmission situation of the data to be transmitted on the LCH corresponding to the SR.

Optionally, the MAC PDU includes a medium access control control element BSR MAC CE, and the BSR MAC CE is used to carry a buffer status report BSR that triggers the SR.

In a second aspect, a terminal device is provided, and the terminal device can execute the foregoing first aspect or any optional implementation method of the first aspect. Specifically, the terminal device may include a functional module for executing the foregoing first aspect or any possible implementation manner of the first aspect.

In a third aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the foregoing first aspect or the method in any possible implementation of the first aspect.

In a fourth aspect, an apparatus for SR transmission is provided, including a processor. The processor is configured to call and run a computer program from the memory, so that the device installed with the device executes the above-mentioned first aspect or the method in any possible implementation of the first aspect.

Optionally, the device is a chip.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute the method in the first aspect or any possible implementation of the first aspect.

In a sixth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute the above-mentioned first aspect or the method in any possible implementation of the first aspect.

In a seventh aspect, a computer program is provided, which when running on a computer, causes the computer to execute the above-mentioned first aspect or the method in any possible implementation of the first aspect.

Based on the above technical solution, when a conflict occurs between the PUCCH resource used to transmit SR and the PUSCH resource used to transmit MAC PDU, the terminal device's transmission based on SR, MAC PDU transmission, and the corresponding logical channel on the SR According to the transmission situation of the data to be transmitted, the first moment of canceling the SR is determined. In this way, based on the actual data transmission situation, the time to cancel the SR is determined, so that the data to be transmitted on the logical channel corresponding to the SR can be transmitted more effectively.

Description of the drawings

Fig. 1 is a schematic diagram of a possible wireless communication system applied by an embodiment of the present application.

FIG. 2 is a schematic flowchart of an SR transmission method according to an embodiment of the present application.

Figure 3 is a possible implementation based on the method shown in Figure 2.

Fig. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.

FIG. 6 is a schematic structural diagram of an apparatus for SR transmission according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, advanced Advanced long term evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum, LTE-U System, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), future 5G systems or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (D2D). ) Communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (MTC), and vehicle to vehicle (V2V) communication, etc. The embodiments of this application can also be applied to these communication systems .

The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, a standalone (SA) network deployment scenario, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 includes a network device 110, and the network device 110 may be a device that communicates with a terminal device 120. The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.

The network equipment 110 may be, for example, a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB, or eNodeB) in an LTE system, The wireless controller in the Cloud Radio Access Network (CRAN); or, the network device 110 may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, Routers, network-side equipment in 5G networks, or network equipment in the future evolution of the Public Land Mobile Network (PLMN), etc.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or fixed. The terminal device 120 may refer to, for example, a user equipment, an access terminal, a user unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, and future evolution of the public land mobile network (Public Land Mobile Network, PLMN) Terminal equipment, etc., this embodiment of the present application does not limit this. Among them, the terminal devices 120 may also perform device-to-device (D2D) communication.

The network device 110 may provide services for a cell, and the terminal device 120 communicates with the network device 110 through transmission resources used by the cell, such as frequency domain resources or spectrum resources. The cell may be a cell corresponding to the network device 110. The cell may belong to a macro base station or a base station corresponding to a small cell. The small cell here may include: Metro cell, Micro cell , Pico cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.

Fig. 1 exemplarily shows one network device and two terminal devices, but the application is not limited to this. The wireless communication system 100 may include a plurality of network devices, and the coverage area of each network device may include other numbers of terminal devices. In addition, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity.

When a network device configures an uplink resource for transmitting data for a terminal device, it can use dynamic grant (dynamic grant) or configured grant (configured grant). The terminal device is based on the uplink grant (ULGrant) information sent by the network device , Determine the uplink resource used for data transmission.

Scheduling Request (SR) is used to request UL resources to transmit data to be transmitted by terminal equipment. The network device can configure zero, one, or multiple SR configurations for the Medium Access Control (MAC) layer. Among them, each SR configuration corresponds to a physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource. Each SR configuration can correspond to one or more logical channels. For example, the SR configuration used by LCH 1 is SR configuration 1, and the SR configuration used by LCH 2 and LCH 3 is SR configuration 2. When certain conditions are met, the Buffer Status Report (BSR) triggers the corresponding SR. When the network device successfully receives the SR, it allocates resources to the terminal device. The size of the resource allocated by the network device should be at least the size of the resource required for one BSR transmission. If the resource is sufficient to accommodate the data to be transmitted corresponding to the SR, the resource can be used to transmit the data. If the resource is not enough to accommodate the data to be transmitted, the terminal device can send a BSR on the resource to inform the network device how much resources it needs, Therefore, the network device allocates uplink resources for the data to be transmitted according to the received BSR.

When the MAC layer instructs the physical layer (Physical Layer, PHY) to send the SR, the SR prohibit timer (sr-ProhibitTimer) can be turned on. During the running of the SR prohibit timer, the SR cannot be sent again.

According to the current protocol, when the PUCCH resource for transmitting the SR conflicts with the resource provided by the uplink authorization, the SR will not be instructed by the MAC layer to transmit to the PHY layer. When a terminal device triggers an SR, the SR is in the "Pending" state, and when transmitting a MAC protocol data unit (Protocol Data Unit, PDU), if the MAC PDU includes BSR MAC CE, or uplink The authorized resource can accommodate all the data to be transmitted corresponding to the SR, and the SR in the pending state can be cancelled when the MAC PDU is sent. In other words, if the BSR is ready to be sent, or the current resources are sufficient, there is no need to request resources from the network device through the SR.

However, in the IIoT system, if the processing method of the current protocol is still adopted, it may cause high-priority services to be unable to be effectively transmitted. For example, for a resource provided by an uplink authorization, a terminal device packs a MAC PDU, and the service carried in the MAC PDU is an enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) service. If the resource provided by the uplink authorization, namely the Physical Uplink Shared Channel (PUSCH) resource, conflicts with the PUCCH resource used to transmit the SR, and the SR is triggered by ultra-reliable and low-latency For the communication (Ultra Reliable & Low Latency Communication, URLLC) service, at this time, the terminal device expects the network device to learn as soon as possible the situation of the terminal device to transmit data, so the SR needs to be sent to the network device as soon as possible. However, according to the existing method, if the SR is triggered before the MAC PDU grouping, the SR will be cancelled when the MAC PDU is sent, resulting in the failure to guarantee the performance of the URLLC service.

This application provides a method for SR transmission, which can realize effective data transmission when resource conflicts occur.

FIG. 2 is a schematic flowchart of an SR transmission method according to an embodiment of the present application. The method shown in FIG. 2 may be executed by a terminal device, and the terminal device may be, for example, the terminal device 120 shown in FIG. 1 described above. As shown in Figure 2, the method shown includes some or all of the following steps.

In 210, when a conflict occurs between the PUCCH resource used to transmit the SR and the PUSCH resource used to transmit the MAC PDU, the terminal device cancels the SR at the first moment.

The transmission situation of the SR;

The transmission situation of the MAC PDU;

The transmission situation of the data to be transmitted on the logical channel (Logical Channel, LCH) corresponding to the SR.

In this embodiment, when a conflict occurs between the PUCCH resource used to transmit the SR and the PUSCH resource used to transmit the MAC PDU, the terminal equipment is based on the transmission situation of the SR, the transmission situation of the MAC PDU, and the logical channel corresponding to the SR. According to the transmission situation of the data to be transmitted, the first moment when the SR can be cancelled is determined. In this way, based on the actual data transmission situation, the time to cancel the SR is determined, so that the data to be transmitted on the logical channel corresponding to the SR can be effectively transmitted.

Wherein, the MAC PDU includes a BSR medium access control control element (MAC CE), and the BSR MAC CE is used to carry the BSR that triggers the SR.

Optionally, the method further includes: when the terminal device cancels the SR at the first moment, stopping an SR prohibition timer. Wherein, the SR is not allowed to be transmitted within the time period of the SR prohibit timer.

First, for the transmission of the SR, for example, it may include:

The number of transmissions of the SR reaches the maximum number of retransmissions; or,

The number of transmissions of the SR reaches M, where M is a positive integer and less than the maximum number of retransmissions.

In other words, the first moment is the moment when the number of transmissions of the SR reaches its maximum number of retransmissions, or the moment when the number of transmissions of the SR reaches M. When a conflict occurs between the PUCCH resource used to transmit the SR and the PUSCH resource used to transmit the MAC PDU, the terminal device is at the moment when the number of transmissions of the SR reaches its maximum number of retransmissions, or during the transmission of the SR When the number of times reaches M, the SR is cancelled.

Wherein, M may be configured by the network device, pre-configured, for example, specified by the protocol, or determined by the terminal device itself.

Second, for the transmission of the MAC PDU, for example, it may include at least one of the following conditions:

The MAC PDU transmission ends or the transmission is successful;

The hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) buffer of the MAC PDU is cleared;

The new data indicator (New Data Indicator, NDI) corresponding to the HARQ of the MAC PDU is toggled (toggled);

The network equipment schedules a new MAC PDU transmission, in other words, the network equipment schedules a new transmission;

There is the first resource;

The transmission of the MAC PDU on the first resource ends or the transmission succeeds.

The first resource can be used to transmit the MAC PDU, and the first resource does not conflict with the resource used to transmit SR.

Wherein, the transmission of the MAC PDU ends or the transmission is successful includes at least one of the following situations: the initial transmission of the MAC PDU ends or the initial transmission is successful; the retransmission of the MAC PDU ends or the retransmission is successful; the number of transmissions of the MAC PDU , The number of transmission ends, or the number of successful transmissions reaches N, where N is a positive integer.

In other words, the first moment is the moment when the transmission of the MAC PDU ends or the transmission is successful, the moment when the HARQ buffer of the MAC PDU is emptied, the moment when the NDI corresponding to the HARQ of the MAC PDU is reversed, and the network device The time when the new transmission is scheduled, the time when the terminal device determines that the first resource exists, or the time when the MAC PDU transmission on the first resource ends or the transmission is successful. When a conflict occurs between the PUCCH resource used to transmit the SR and the PUSCH resource used to transmit the MAC PDU, the terminal device cancels the SR at the above moment.

Wherein, the transmission of the MAC PDU ends or the transmission is successful, the HARQ buffer of the MAC PDU is emptied, the NDI corresponding to the HARQ of the MAC PDU is flipped, and the network device schedules a new transmission, all indicating that the MAC PDU has been The network device successfully receives it, that is, the BSR MAC CE carried in the MAC PDU has been received by the network device. The network device may allocate uplink resources to the terminal device according to the received BSR MAC CE for transmitting the data to be transmitted on the LCH corresponding to the SR. At this time, the terminal device does not need to send the SR again. Therefore, the terminal device can cancel the SR when it is determined that the MAC PDU has been successfully received by the network device.

The terminal device determines that there is a first resource that can be used to transmit the MAC PDU and that the first resource does not conflict with a resource used to transmit SR, or the MAC PDU transmission on the first resource ends or the transmission is successful , Both indicate that after conflicting resources, there is still a first resource used to transmit the MAC PDU, that is, the BSR MAC CE carried in the MAC PDU can be transmitted to the network device through the first resource. At this time, the terminal device does not need to send the SR again. Therefore, the terminal device may cancel the SR when it finds that the first resource exists, or when the MCA PDU on the first resource has been transmitted.

Among them, N may be configured by the network device, pre-configured, for example, specified by the protocol, or determined by the terminal device itself.

Third, the transmission situation of the data to be transmitted on the LCH corresponding to the SR may include, for example:

There is a second resource, and the second resource can be used to transmit at least part of the data to be transmitted in the LCH corresponding to the SR.

Wherein, when the terminal device determines that there is a second resource, part or all of the data to be transmitted in the LCH corresponding to the SR may be transmitted to the network device on the second resource. At this time, the terminal device does not need to send the SR again. Therefore, the terminal device may cancel the SR when it finds that the second resource exists.

In the scheme of canceling the SR before MAC PDU grouping, the network device needs to wait until the longer MAC PDU is successfully received and parsed before it can obtain the BSR therein, so as to schedule uplink resources for the terminal device for use Transmitting the data to be transmitted on the LCH corresponding to the SR. However, in the embodiment of the present application, the cancellation time of the SR is the first moment, and before the first moment, more transmission opportunities are provided for the SR, so that the SR can be received by the network device as soon as possible To. For example, when the data on the LCH corresponding to the SR is a high-priority URLLC service, the network device can obtain the SR in time without waiting until the MAC PDU is received, so as to schedule uplink resources for the URLLC service as soon as possible , To ensure its effective transmission.

The above describes when the SR in the pending state is cancelled, and the following describes whether the SR needs to be sent when a resource conflict occurs.

Optionally, in an implementation manner, the method further includes: the terminal device determines whether it is available according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the PUCCH resource information. The SR is transmitted on the conflicting resource. The three methods are described below.

Way 1

The terminal device determines whether to transmit the SR on the conflicting resource according to the LCH corresponding to the SR, including: if the LCH corresponding to the SR is the first LCH, the terminal device determines the conflicting resource Upload the SR.

It should be understood that, in the embodiment of the present application, the LCH corresponding to the SR can be understood as the SR that is triggered by the terminal device in order to transmit the data to be transmitted on the first LCH. The data to be transmitted corresponding to the SR refers to the data to be transmitted on the first LCH corresponding to the SR.

Wherein, the first LCH satisfies at least one of the following conditions, for example:

(1) The first LCH is the LCH with the highest priority among all LCHs.

For example, the first LCH is the LCH with the highest priority among all LCHs corresponding to the MAC entity that generates the MAC PDU; for another example, the first LCH is the LCH with the highest priority among all the LCHs configured for the terminal device .

(2) The first LCH is the LCH with the highest priority among the LCHs to be transmitted.

(3) The priority of the first LCH is higher than or equal to a preset threshold.

The preset threshold may be configured by the network device, or pre-configured, for example, specified by a protocol.

(4) The priority of the first LCH is a specific value.

The specific value may be configured by the network device, or pre-configured, for example, specified by a protocol.

(5) The priority level of the first LCH channel is high.

It should be noted that the priority level of the LCH channel is different from the priority level of the LCH. The priority level of the LCH channel may be configured by the network device, or pre-configured, for example, agreed upon by a protocol. For example, the level can be divided into high, medium, and low, wherein the logical channels corresponding to the MAC entity can be divided into high, medium, and low levels in the order of their priority from high to low. For another example, the level can be divided into high and low, wherein the logical channels corresponding to the MAC entity can be divided into high and low levels in the order of their priority from high to low. Assume that the priority levels of LCH 1 to LCH 4 corresponding to the MAC entity are 1, 2, 3, and 4 respectively, where the priority level of LCH 1 is high, the priority level of LCH 2 and LCH 3 is medium, and the priority level of LCH The priority level of 4 is low. When the priority level of the first LCH channel is high, the terminal device may preferentially send the SR on the conflicting resource.

(6) The priority level of the first LCH channel is a specific level.

The specific level may be configured by the network device, or pre-configured, for example, specified by a protocol.

(7) The logical channel identifier of the first LCH is a specific value.

(8) The first LCH is used to carry a specific service.

The specific service may include, for example, a URLLC service, or a service with high reliability and low latency requirements.

(9) The priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU.

For example, the priority of the first LCH is higher than or equal to the priority of the highest priority LCH among the LCHs corresponding to the data carried by the MAC PDU; or,

The priority of the first LCH is higher than or equal to the average value of the priority of the LCH corresponding to the data carried by the MAC PDU; or,

The priority of the first LCH is higher than or equal to the priority of any LCH corresponding to the data carried by the MAC PDU.

Assuming that the MAC PDU carries data on the second LCH, and the priority of the first LCH is higher than the priority of the second LCH, the terminal device will give priority to sending when there is a resource conflict between the SR and the MAC PDU The SR. Assuming that the MAC PDU carries data on the second LCH and the third LCH, and the priority of the first LCH is higher than the priority of the second LCH and higher than the priority of the third LCH, the terminal device is When a resource conflict occurs between the SR and the MAC PDU, the SR is sent first. Assuming that the MAC PDU carries data on the second LCH and the third LCH, and the priority of the first LCH is higher than the priority of any one of the second LCH and the third LCH, the terminal device is in the SR When a resource conflict occurs with the MAC PDU, the SR is sent first.

(10) The priority level of the first LCH is higher than or equal to the priority level of the PUSCH resource.

Similarly, the priority levels of the PUSCH resources can also be divided into high, medium, and low, for example, where each channel can be divided into high, medium, and low levels in the order of their priority from high to low. . Alternatively, the level may be divided into high and low, wherein the logical channels corresponding to the MAC entity may be divided into high and low levels in the order of their priority from high to low. Assuming that the priority level of the first LCH is higher than or equal to the priority level of the PUSCH resource, for example, the priority level of the first LCH is high, and the priority level of the PUSCH resource is medium , When a resource conflict occurs between the SR and the MAC PDU, the terminal device preferentially sends the SR.

(11) At least part of the data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource, or cannot be carried in the MAC PDU.

For example, if the PUSCH resource is used to transmit eMBB services, but the data to be transmitted on the first LCH is a URLLC service, the data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource.

Of course, if the data to be transmitted in the first LCH can be transmitted on the PUSCH resource, there is no need to trigger the SR.

(12) The delay of the first LCH is less than or equal to the delay of the LCH corresponding to the data carried by the MAC PDU.

For example, the delay of the first LCH is less than or equal to the delay of the LCH with the lowest delay among the LCHs corresponding to the data carried by the MAC PDU; or,

The delay of the first LCH is less than or equal to the average value of the delays of the LCH corresponding to the data carried by the MAC PDU; or,

The delay of the first LCH is less than or equal to the delay of any LCH corresponding to the data carried by the MAC PDU.

(13) The time delay of the first LCH is less than or equal to a preset threshold.

(14) The time delay of the first LCH is a specific value or within a specific range.

(15) The priority level of the first LCH is higher than or equal to the priority level of the LCH corresponding to the data carried by the MAC PDU (referred to as a level or a priority level for short).

For example, the level of the first LCH is higher than or equal to the level of the LCH with the highest level among the LCHs corresponding to the data carried by the MAC PDU; or,

The level of the first LCH is higher than or equal to the average value of the levels of the LCH corresponding to the data carried by the MAC PDU; or,

The level of the first LCH is higher than or equal to the level of any LCH corresponding to the data carried by the MAC PDU.

The level of the LCH can be quantified to determine the average value of the level of the LCH corresponding to the data carried by the MAC PDU. For example, the priority level of LCH is represented by a numerical value. Assuming that the high level is 0, the medium level is 1, and the low level is 2, the data carried by the MAC PDU corresponds to LCH 2 and LCH 3. The levels of LCH 2 and LCH 3 are high and low respectively. Then the levels of LCH 2 and LCH 3 The average value is 1. If the level of LCH 1 is high, that is, 0, it means that the level of LCH 1 is higher than the average of the levels of LCH 2 and LCH 3.

For another example, suppose that LCH is configured with high and low levels, and the data carried by the MAC PDU corresponds to LCH 2, LCH 3, and LCH 4. If the number of LCHs with a level greater than the preset value among the three LCHs is more than or equal to If there are 2, LCH 2, LCH 3, and LCH 4 are considered to have a high priority level; if the number of LCHs with a level greater than the preset value among the three LCHs is less than 2, then LCH 2, LCH 3 The average of the priority levels of LCH and LCH 4 is low. Assuming that the preset value is 1, the priority levels of LCH 2, LCH 3, and LCH 4 are high, high, and low respectively, that is, 2, 2, and 0 respectively. It can be seen that the priority levels of the three LCHs are greater than 1. The number of LCHs is 2, then the average of the priority levels of LCH 2, LCH 3, and LCH 4 is considered to be high. If the level of LCH 1 is low, the level of LCH 1 is lower than the average of the levels of LCH 2 and LCH 3.

Among them, for the priority and priority level, the lower the value, the higher the priority or the higher the level.

Way 2

The terminal device determines whether to transmit the SR on the conflicting resource according to the service corresponding to the SR, including: if the service corresponding to the SR is the first service, the terminal device determines the conflicting resource Upload the SR.

Wherein, the first service includes, for example, at least one of the following: a URLLC service, a service with high reliability and low latency requirements, or a service corresponding to the first LCH.

Way 3

The terminal device determines whether to transmit the SR on the conflicting resource according to the information of the PUCCH resource, including: if the PUCCH resource meets at least one of the following conditions, the terminal device determines that a conflict occurs The SR is transmitted on the resource:

The priority of the PUCCH resource is higher than or equal to the priority of the PUSCH resource;

The priority of the PUCCH resource is higher than a preset threshold;

The priority of the PUCCH resource is a specific priority;

The priority of the PUCCH resource is higher than or equal to the level of the LCH corresponding to the data carried by the MAC PDU included in the PUSCH.

It should be understood that in the case where an analogy can be made between the priority level and the priority level, the priority level of the PUCCH resource can be compared with the level of the LCH corresponding to the MAC PDU in the PUSCH to determine whether SR is transmitted first. For example, if the priority of the PUCCH resource is 0, and the level of the LCH corresponding to the MAC PDU in the PUSCH is low (represented by 2), when the PUCCH resource conflicts with the PUSCH resource, priority Transmit SR.

The network device can configure the resource level or channel level, or pre-configure the channel level, for example, as agreed in the protocol. For example, if the priority of the PUCCH resource for transmitting the SR is higher than the priority of the PUSCH resource used for data transmission, the terminal device may preferentially transmit the SR.

Optionally, in an implementation manner, if it is determined to send the SR on the conflicting resource, the method further includes:

The terminal device transmits the SR on the PUCCH resource; or,

The terminal device transmits the SR and the MAD PDU on the PUSCH resource.

Further, optionally, that the terminal device transmits the SR and the MAD PDU on the PUSCH resource includes: the terminal device transmits the SR and the MAD PDU on the PUSCH resource based on multiplexing or puncturing , To transmit the SR and the MAD PDU.

It should be understood that the preferential transmission of the SR described in the embodiment of the present application includes only transmitting the SR on the conflicting resource, and also includes simultaneously transmitting the SR and the MAC PDU on the conflicting resource.

The following describes a possible implementation based on the method shown in FIG. 2 with reference to FIG. 3. The network device may send SR configuration information, logical channel configuration information, etc. to the terminal device, and the terminal device determines the PUCCH resource corresponding to each SR configuration and the SR configuration corresponding to each logical channel based on this information.

As shown in Figure 3, between T0 and T1, the terminal device triggers the SR corresponding to the first LCH, and the SR configuration corresponding to the first LCH is used to instruct the terminal device to use PUCCH resource 1 to transmit the corresponding SR, where: The service on the first LCH is a URLLC service. In addition, between T1 and T2, the terminal device receives downlink control information (Download Control Information, DCI), where the DCI is used to schedule eMBB services and corresponds to HARQ process 1. Then, the terminal device packages the eMBB service to obtain MAC PDU 1, which includes the BSR that triggers the SR and corresponds to HARQ process 1.

If the PUCCH resource 1 used to transmit the SR, there is a resource conflict between the uplink shared channel (UL-Shared Channel, UL-SCH) scheduled by the DCI, that is, the PUSCH resource used to transmit the MAC PDU. At this time, the terminal device determines whether to preferentially transmit the SR on the conflicting resource based on the foregoing method.

It should be understood that when the MAC layer of the terminal device determines to preferentially transmit the SR on the conflicting resource, the MAC layer may instruct the physical layer to preferentially transmit the SR. For the physical layer, the SR may be preferentially transmitted according to the instruction of the MAC layer, or it may be further determined whether the SR needs to be preferentially transmitted based on the instruction of the MAC layer and other information such as channel priority and UCI.

If the physical layer determines to transmit the SR first at time T2 and allows the MAC PDU to be transmitted together with the SR, then between time T2 and T3, the terminal device sends the SR together on the PUSCH resource And the MAC PDU 1. It should be noted that at this time, the SR is not cancelled.

At time T3, the terminal device receives the DCI again, and the DCI schedules a new transmission for HARQ process 1, that is, the MAC PDU 1 has been successfully received by the network device, that is, the BSR that triggered the SR has been Network equipment received. At this time, at time T3, the terminal device cancels the SR.

It can be seen that since the terminal device cancels the SR at time T3, the network device can obtain the SR in time before time T3, and learn the status of the data to be transmitted by the URLLC service as soon as possible, so as to allocate uplink resources for the URLLC service as soon as possible to ensure Effective transmission of URLLC services.

In the solution of canceling the SR before MAC PDU grouping, the network device must be able to receive the BSR that triggers the SR at the earliest time T3. However, in the embodiment of the present application, as shown in FIG. 3, even if the SR before time T3 is not successfully transmitted, for example, the network device does not successfully decode the SR, the network device can obtain the data at time T3 at the latest. The BSR. Compared with the solution of canceling the SR before the MAC PDU grouping, the method of the embodiment of the present application does not extend the time for receiving the BSR in the worst case. On the contrary, before T3, the SR can be periodically transmitted multiple times, and the probability of successful transmission is relatively high. At this time, the network device can receive the SR in advance, thereby ensuring effective transmission of the URLLC service.

It should be understood that the method of the embodiment of the present application is suitable for conflict resolution between SR and uplink authorized resources, and also suitable for conflict resolution between other uplink control information (Uplink Control Information, UCI) and uplink authorized resources. The UCI includes, for example, HARQ information, Channel State Information Reference Signal (Channel State Information-Reference Signal, CSI-RS), etc.

It should be noted that, under the premise of no conflict, the various embodiments described in this application and/or the technical features in each embodiment can be combined with each other arbitrarily, and the technical solutions obtained after the combination should also fall within the protection scope of this application. .

In the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not correspond to the implementation process of the embodiments of the present application. Constitute any limitation.

The method for downlink signal transmission according to the embodiment of the present application is described in detail above. The device according to the embodiment of the present application will be described below in conjunction with FIG. 4 to FIG. 6. The technical features described in the method embodiment are applicable to the following device embodiments.

FIG. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 4, the terminal device 400 includes a processing unit 410.

The processing unit 410 is configured to cancel the SR at the first moment when a conflict occurs between the physical uplink control channel PUCCH resource used to transmit the scheduling request SR and the PUSCH resource used to transmit MAC PDU.

The transmission situation of the SR;

The transmission situation of the MAC PDU;

The transmission situation of the data to be transmitted on the logical channel LCH corresponding to the SR.

Therefore, when a conflict occurs between the PUCCH resource used to transmit the SR and the PUSCH resource used to transmit the MAC PDU, the terminal equipment is based on the transmission status of the SR, the transmission status of the MAC PDU, and the data to be transmitted on the logical channel corresponding to the SR The first moment of cancellation of the SR is determined. In this way, based on the actual data transmission situation, the time to cancel the SR is determined, so that the data to be transmitted on the logical channel corresponding to the SR can be transmitted more effectively.

Optionally, the MAC PDU includes a BSR MAC CE, and the BSR MAC CE is used to carry the BSR that triggers the SR.

Optionally, the transmission condition of the SR includes: the number of transmissions of the SR reaches the maximum number of retransmissions; or, the number of transmissions of the SR reaches M, where M is a positive integer and less than the maximum number of retransmissions.

Optionally, the transmission situation of the MAC PDU includes at least one of the following situations: the transmission of the MAC PDU is ended or the transmission is successful; the HARQ buffer of the MAC PDU is emptied; the HARQ corresponding to the MAC PDU is turned over The network equipment schedules a new MAC PDU transmission; there is a first resource; the MAC PDU transmission on the first resource ends or the transmission succeeds, wherein the first resource can be used to transmit the MAC PDU, and the The first resource does not conflict with the resource used to transmit SR.

Optionally, the transmission of the MAC PDU ends or the transmission is successful includes at least one of the following conditions: the initial transmission of the MAC PDU ends or the initial transmission is successful; the retransmission of the MAC PDU ends or the retransmission is successful; the transmission of the MAC PDU The number of end or transmission success reaches N, where N is a positive integer.

Optionally, the transmission situation of the data to be transmitted on the LCH corresponding to the SR includes: there is a second resource, and the second resource can be used to transmit at least part of the data to be transmitted in the LCH corresponding to the SR.

Optionally, the processing unit 410 is further configured to determine whether a conflicting resource is occurring according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the PUCCH resource information. Upload the SR.

Optionally, the processing unit 410 is specifically configured to: if the LCH corresponding to the SR is the first LCH, determine to transmit the SR on the conflicting resource; wherein, the first LCH satisfies one of the following conditions At least one: the first LCH is the LCH with the highest priority among all LCHs; the first LCH is the LCH with the highest priority among the LCHs to be transmitted; the priority of the first LCH is higher than or equal to the pre- Threshold LCH; the priority of the first LCH is a specific value; the priority level of the first LCH channel is high; the priority level of the first LCH channel is a specific level; the first The logical channel identifier of the LCH is a specific value; the first LCH is used to carry a specific service; the priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU; The priority of an LCH is higher than or equal to the priority of the PUSCH resource; at least part of the data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource, or cannot be carried in the MAC PDU Or, the delay of the first LCH is less than or equal to the delay of the LCH corresponding to the data carried by the MAC PDU.

Optionally, the specific service includes URLLC service.

Optionally, the priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU, including: the priority of the first LCH is higher than or equal to the priority of the MAC PDU The priority of the LCH with the highest priority among the LCHs corresponding to the data of, or the priority of the first LCH is higher than or equal to the average value of the priority of the LCH corresponding to the data carried by the MAC PDU; or The priority of the first LCH is higher than or equal to the priority of any LCH corresponding to the data carried by the MAC PDU.

Optionally, the processing unit 410 is specifically configured to: if the service corresponding to the SR is the first service, determine to transmit the SR on the conflicting resource; wherein, the first service includes at least the following One: URLLC service; service with high reliability and low latency requirements; service corresponding to the first LCH.

Optionally, the processing unit 410 is specifically configured to: if the PUCCH resource meets at least one of the following conditions, the terminal device determines to transmit the SR on the conflicting resource: priority of the PUCCH resource The priority is higher than or equal to the priority of the PUSCH resource; the priority of the PUCCH resource is higher than a preset threshold; the priority of the PUCCH resource is a specific priority.

Optionally, the terminal device further includes: a sending unit 420, configured to transmit the SR on the PUCCH resource, or transmit the SR and the MAD PDU on the PUSCH resource.

Optionally, the sending unit 420 is specifically configured to: transmit the SR and the MAD PDU on the PUSCH resource in a multiplexing or puncturing manner.

Optionally, the processing unit 410 is further configured to: stop the SR prohibition timer when the SR is cancelled at the first moment, wherein the SR is not allowed to be transmitted within the time period of the SR prohibition timer.

It should be understood that the terminal device 400 may perform corresponding operations performed by the terminal device in the method shown in FIG. 2, and for the sake of brevity, details are not described herein again.

FIG. 5 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application. The communication device 500 shown in FIG. 5 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 5, the communication device 500 may further include a memory 520. Wherein, the processor 510 can call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, as shown in FIG. 5, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Among them, the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 500 may specifically be a terminal device of an embodiment of the present application, and the communication device 500 may implement corresponding procedures implemented by the terminal device in each method of the embodiment of the present application. For brevity, details are not described herein again.

Optionally, the communication device 500 may specifically be a network device of an embodiment of the present application, and the communication device 500 may implement corresponding processes implemented by the network device in each method of the embodiments of the present application. For brevity, details are not described herein again.

FIG. 6 is a schematic structural diagram of an apparatus for SR transmission according to an embodiment of the present application. The apparatus 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6, the apparatus 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, the device 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the device 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the apparatus 600 may be applied to the terminal equipment in the embodiments of the present application, and the communication apparatus may implement the corresponding processes implemented by the terminal equipment in the various methods of the embodiments of the present application. For brevity, details are not described herein again.

Optionally, the apparatus 600 may be applied to the network equipment in the embodiments of the present application, and the communication apparatus may implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application. For brevity, details are not described herein again.

Optionally, the device 600 may be a chip. The chip may be, for example, a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip.

The processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

The memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM).

The above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic Random access memory (Synch Link DRAM, SLDRAM) and Direct Rambus RAM (DR RAM) and so on. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs. Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. Repeat.

The embodiments of the present application also provide a computer program product, including computer program instructions. Optionally, the computer program product can be applied to the terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Repeat it again.

The embodiment of the present application also provides a computer program. Optionally, the computer program can be applied to the terminal device in the embodiment of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

The terms "system" and "network" in the embodiments of the present invention are often used interchangeably herein. The term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

In the embodiment of the present invention, "B corresponding (corresponding) to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and/or other information.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for scheduling request SR transmission, characterized in that the method includes:

When a conflict occurs between the physical uplink control channel PUCCH resource used to transmit the SR and the physical uplink shared channel PUSCH resource used to transmit the media access control protocol data unit MAC PDU, the terminal device cancels the SR at the first moment;

Wherein, the first moment is determined according to at least one of the following information:

The transmission situation of the SR;

The transmission situation of the MAC PDU;

The transmission situation of the data to be transmitted on the logical channel LCH corresponding to the SR.
The method according to claim 1, wherein the transmission status of the SR includes:

The number of transmissions of the SR reaches the maximum number of retransmissions; or,

The number of transmissions of the SR reaches M, where M is a positive integer and less than the maximum number of retransmissions.
The method according to claim 1 or 2, wherein the transmission condition of the MAC PDU includes at least one of the following conditions:

The MAC PDU transmission ends or the transmission is successful;

The hybrid automatic retransmission request of the MAC PDU HARQ buffer is emptied;

The new data corresponding to the HARQ of the MAC PDU indicates that the NDI is overturned;

The network equipment schedules new MAC PDU transmission;

There is the first resource;

The transmission of the MAC PDU on the first resource ends or is successful, where the first resource can be used to transmit the MAC PDU, and the first resource does not conflict with a resource used to transmit SR.
The method according to claim 3, wherein the completion or successful transmission of the MAC PDU includes at least one of the following conditions:

The initial transmission of the MAC PDU is completed or the initial transmission is successful;

The retransmission of the MAC PDU ends or the retransmission is successful;

The number of times the MAC PDU transmission ends or the transmission is successful reaches N, where N is a positive integer.
The method according to any one of claims 1 to 4, wherein the transmission status of the data to be transmitted on the LCH corresponding to the SR comprises:

There is a second resource, and the second resource can be used to transmit at least part of the data to be transmitted in the LCH corresponding to the SR.
The method according to any one of claims 1 to 5, wherein the method further comprises:

The terminal device determines whether to transmit the SR on the conflicting resource according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the PUCCH resource information.
The method according to claim 6, wherein the terminal device determining whether to transmit the SR on the conflicting resource according to the LCH corresponding to the SR comprises:

If the LCH corresponding to the SR is the first LCH, the terminal device determines to transmit the SR on the conflicting resource;

Wherein, the first LCH satisfies at least one of the following conditions:

The first LCH is the LCH with the highest priority among all LCHs;

The first LCH is the LCH with the highest priority among the LCHs that have data to be transmitted;

The priority of the first LCH is higher than or equal to a preset threshold;

The priority of the first LCH is a specific value;

The priority level of the first LCH channel is high;

The priority level of the first LCH channel is a specific level;

The logical channel identifier of the first LCH is a specific value;

The first LCH is used to carry a specific service;

The priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU;

The priority level of the first LCH is higher than or equal to the priority level of the PUSCH resource;

At least part of the data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource, or cannot be carried in the MAC PDU; or,

The delay of the first LCH is less than or equal to the delay of the LCH corresponding to the data carried by the MAC PDU.
7. The method according to claim 7, wherein the specific service includes an ultra-reliable low-latency communication URLLC service.
The method according to claim 7 or 8, wherein the priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU, comprising:

The priority of the first LCH is higher than or equal to the priority of the highest priority LCH among the LCHs corresponding to the data carried by the MAC PDU; or,

The priority of the first LCH is higher than or equal to the average value of the priority of the LCH corresponding to the data carried by the MAC PDU; or,

The priority of the first LCH is higher than or equal to the priority of any LCH corresponding to the data carried by the MAC PDU.
The method according to claim 6, wherein the terminal device determining whether to transmit the SR on the conflicting resource according to the service corresponding to the SR comprises:

If the service corresponding to the SR is the first service, the terminal device determines to transmit the SR on the conflicting resource;

Wherein, the first service includes at least one of the following:

URLLC business;

Services with high reliability and low latency requirements;

The service corresponding to the first LCH.
The method according to claim 6, wherein the terminal device determining whether to transmit the SR on the conflicting resource according to the information of the PUCCH resource comprises:

If the PUCCH resource meets at least one of the following conditions, the terminal device determines to transmit the SR on the conflicting resource:

The priority of the PUCCH resource is higher than or equal to the priority of the PUSCH resource;

The priority of the PUCCH resource is higher than a preset threshold;

The priority of the PUCCH resource is a specific priority.
The method according to any one of claims 6 to 11, wherein the method further comprises:

The terminal device transmits the SR on the PUCCH resource; or,

The terminal device transmits the SR and the MAD PDU on the PUSCH resource.
The method according to claim 12, wherein the terminal device transmitting the SR and the MAD PDU on the PUSCH resource comprises:

The terminal device transmits the SR and the MAD PDU on the PUSCH resource based on multiplexing or puncturing.
The method according to any one of claims 1 to 13, wherein the method further comprises:

When the terminal device cancels the SR at the first moment, it stops the SR prohibition timer, where the SR is not allowed to be transmitted within the time period of the SR prohibition timer.
A terminal device, characterized in that the terminal device includes:

The processing unit, when there is a conflict between the physical uplink control channel PUCCH resource used to transmit the scheduling request SR and the physical uplink shared channel PUSCH resource used to transmit the medium access control protocol data unit MAC PDU, cancel the SR at the first moment ；

Wherein, the first moment is determined according to at least one of the following information:

The transmission situation of the SR;

The transmission situation of the MAC PDU;

The transmission situation of the data to be transmitted on the logical channel LCH corresponding to the SR.
The terminal device according to claim 15, wherein the transmission condition of the SR includes:

The number of transmissions of the SR reaches the maximum number of retransmissions; or,

The number of transmissions of the SR reaches M, where M is a positive integer and less than the maximum number of retransmissions.
The terminal device according to claim 15 or 16, wherein the transmission condition of the MAC PDU includes at least one of the following conditions:

The MAC PDU transmission ends or the transmission is successful;

The hybrid automatic retransmission request of the MAC PDU HARQ buffer is emptied;

The new data corresponding to the HARQ of the MAC PDU indicates that the NDI is overturned;

The network equipment schedules new MAC PDU transmission;

There is the first resource;

The transmission of the MAC PDU on the first resource ends or is successful, where the first resource can be used to transmit the MAC PDU, and the first resource does not conflict with a resource used to transmit SR.
The terminal device according to claim 17, wherein the completion or successful transmission of the MAC PDU includes at least one of the following conditions:

The initial transmission of the MAC PDU is completed or the initial transmission is successful;

The retransmission of the MAC PDU ends or the retransmission is successful;

The number of times the MAC PDU transmission ends or the transmission is successful reaches N, where N is a positive integer.
The terminal device according to any one of claims 15 to 18, wherein the transmission status of the data to be transmitted on the LCH corresponding to the SR includes:

There is a second resource, and the second resource can be used to transmit at least part of the data to be transmitted in the LCH corresponding to the SR.
The terminal device according to any one of claims 15 to 19, wherein the processing unit is further configured to:

The terminal device determines whether to transmit the SR on the conflicting resource according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the PUCCH resource information.
The terminal device according to claim 20, wherein the processing unit is specifically configured to:

If the LCH corresponding to the SR is the first LCH, determine to transmit the SR on the conflicting resource;

Wherein, the first LCH satisfies at least one of the following conditions:

The first LCH is the LCH with the highest priority among all LCHs;

The first LCH is the LCH with the highest priority among the LCHs that have data to be transmitted;

The priority of the first LCH is higher than or equal to a preset threshold;

The priority of the first LCH is a specific value;

The priority level of the first LCH channel is high;

The priority level of the first LCH channel is a specific level;

The logical channel identifier of the first LCH is a specific value;

The first LCH is used to carry a specific service;

The priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU;

The priority of the first LCH is higher than or equal to the priority of the PUSCH resource;

At least part of the data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource, or cannot be carried in the MAC PDU; or,

The delay of the first LCH is less than or equal to the delay of the LCH corresponding to the data carried by the MAC PDU.
The terminal device according to claim 21, wherein the specific service includes an ultra-reliable low-latency communication URLLC service.
The terminal device according to claim 21 or 22, wherein the priority of the first LCH is higher than or equal to the priority of the LCH corresponding to the data carried by the MAC PDU, comprising:

The priority of the first LCH is higher than or equal to the priority of the highest priority LCH among the LCHs corresponding to the data carried by the MAC PDU; or,

The priority of the first LCH is higher than or equal to the average value of the priority of the LCH corresponding to the data carried by the MAC PDU; or,

The priority of the first LCH is higher than or equal to the priority of any LCH corresponding to the data carried by the MAC PDU.
The terminal device according to claim 20, wherein the processing unit is specifically configured to:

If the service corresponding to the SR is the first service, determine to transmit the SR on the conflicting resource;

Wherein, the first service includes at least one of the following:

URLLC business;

Services with high reliability and low latency requirements;

The service corresponding to the first LCH.
The terminal device according to claim 20, wherein the processing unit is specifically configured to:

If the PUCCH resource meets at least one of the following conditions, it is determined to transmit the SR on the conflicting resource:

The priority of the PUCCH resource is higher than or equal to the priority of the PUSCH resource;

The priority of the PUCCH resource is higher than a preset threshold;

The priority of the PUCCH resource is a specific priority.
The terminal device according to any one of claims 20 to 25, wherein the terminal device further comprises:

The sending unit is configured to transmit the SR on the PUCCH resource, or transmit the SR and the MAD PDU on the PUSCH resource.
The terminal device according to claim 26, wherein the sending unit is specifically configured to:

On the PUSCH resource, the SR and the MAD PDU are transmitted based on multiplexing or puncturing.
The terminal device according to any one of claims 15 to 27, wherein the processing unit is further configured to:

When the SR is cancelled at the first moment, the SR prohibition timer is stopped, wherein the SR is not allowed to be transmitted within the time period of the SR prohibition timer.
A communication device, wherein the communication device includes a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute claim 1. To the method of any one of 14.
A device for scheduling request SR transmission, characterized in that the device includes a processor, the processor is used to call and run a computer program from a memory, so that the device installed with the device executes claims 1 to 14 The method of any one of.
The device of claim 30, wherein the device is a chip.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 14.
A computer program product, characterized by comprising computer program instructions that cause a computer to execute the method according to any one of claims 1 to 14.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 14.