CN113557779A

CN113557779A - Method and device for scheduling request transmission

Info

Publication number: CN113557779A
Application number: CN201980094027.2A
Authority: CN
Inventors: 付喆; 卢前溪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2021-10-26
Anticipated expiration: 2039-08-14
Also published as: CN113557779B; WO2021026841A1

Abstract

A method and apparatus for scheduling request transmission are provided, which can achieve efficient data transmission in the event of resource collision. The method comprises the following steps: when a conflict occurs between a PUCCH resource for transmitting an SR and a PUSCH resource for transmitting an MAC PDU, the terminal equipment cancels the SR at a first moment; wherein the first time is determined according to at least one of the following information: the transmission condition of the SR; a transmission condition of the MAC PDU, wherein the MAC PDU includes a BSR MAC CE, and the BSR MAC CE is configured to carry a buffer status report BSR triggering the SR; and the transmission condition of the data to be transmitted on the LCH corresponding to the SR.

Description

Method and device for scheduling request transmission

Technical Field

The present embodiments relate to the field of communications, and in particular, to a method and an apparatus for Scheduling Request (SR) transmission.

Background

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 (Transport Industry) Automation, intelligent Power Distribution (Electrical Power Distribution) and the like in a 5G system. Based on its transmission requirements, such as delay requirements and reliability requirements, a Time Sensitive Network (TSN) Network or a Time Sensitive Cell (TSC) is introduced into IIoT. In such a scenario, transmission requirements of different services are different, and when resource conflict occurs between SR and uplink data, how to effectively perform data transmission by a terminal device becomes an urgent problem to be solved.

Disclosure of Invention

The application provides a method and equipment for SR transmission, which can realize effective data transmission when resources conflict.

In a first aspect, a method for SR transmission is provided, including: when a Physical Uplink Control Channel (PUCCH) resource used for transmitting the SR conflicts with a Physical Uplink Shared Channel (PUSCH) resource used for transmitting a medium access control protocol data unit (MAC PDU), the terminal equipment cancels the SR at the first moment;

wherein the first time is determined according to at least one of the following information:

the transmission condition of the SR;

a transmission condition of the MAC PDU;

and the transmission condition of the data to be transmitted on the LCH corresponding to the SR.

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

In a second aspect, a terminal device is provided, where the terminal device may perform the method in the first aspect or any optional implementation manner of the first aspect. In particular, the terminal device may include functional modules for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a third aspect, a terminal device is provided that includes a processor and a memory. The memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method in the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, an apparatus for SR transmission is provided that includes a processor. The processor is configured to call and run a computer program from the memory, so that the device in which the apparatus is installed performs the method of the first aspect or any possible implementation manner 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, the computer program causing a computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

A sixth aspect provides a computer program product comprising computer program instructions to cause a computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a seventh aspect, a computer program is provided, which, when run on a computer, causes the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

Based on the technical scheme, when a conflict occurs between a PUCCH resource for transmitting the SR and a PUSCH resource for transmitting the MAC PDU, the terminal equipment determines the first moment for canceling the SR based on the transmission condition of the SR, the transmission condition of the MAC PDU, the transmission condition of the data to be transmitted on the logic channel corresponding to the SR and the like. Therefore, the time for canceling the SR is determined according to the actual data transmission condition, so that the data to be transmitted on the logic channel corresponding to the SR can be transmitted more effectively.

Drawings

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

Fig. 2 is a schematic flow chart of a method of SR transmission according to an embodiment of the present application.

Fig. 3 is one possible implementation based on the method shown in fig. 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 configuration diagram of a communication apparatus 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 with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a Long Term Evolution (Long Term Evolution, LTE) System, a Frequency Division Duplex (FDD) System, a Time Division Duplex (TDD) System, an Advanced Long Term Evolution (LTE-A) System, a New Radio (NR) System, an Evolution System of an NR System, an LTE-based Access to unlicensed spectrum (LTE-U) System, an NR-based Access to unlicensed spectrum (NR) System, a UMTS-based Mobile Communication System, a UMTS-based Local Area network (UMTS) System, WLAN), Wireless Fidelity (WiFi), future 5G systems or other communication systems, etc.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

The communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, a Dual Connectivity (DC) scenario, an independent (SA) networking scenario, and the like.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. Communication system 100 includes network device 110, and network device 110 may be a device that communicates with terminal device 120. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area.

The Network device 110 may be, for example, a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN); alternatively, 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, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, and so on.

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 stationary. Terminal device 120 can refer to, for example, a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network, a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment. Among them, the terminal devices 120 may also perform direct Device to Device (D2D) communication.

Network device 110 may serve a cell through which terminal device 120 communicates with network device 110 using transmission resources, e.g., frequency domain resources or spectrum resources. The cell may be a cell corresponding to the network device 110, and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

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

When the network device configures the Uplink resource for transmitting data for the terminal device, the terminal device may determine the Uplink resource for transmitting data based on Uplink Grant (UL Grant) information sent by the network device in a dynamic Grant (dynamic Grant) or configured Grant (configured Grant) manner.

A Scheduling Request (SR) is used to Request UL resources to transmit data to be transmitted of the terminal device. The network device may configure the Medium Access Control (MAC) layer with 0, 1, or more SR configurations. Each SR configuration corresponds to a Physical Uplink Control Channel (PUCCH) resource. Each SR configuration may correspond to one or more logical channels, e.g., the SR configuration used by LCH 1 is SR configuration 1, and the SR configurations used by LCH 2 and LCH 3 are SR configuration 2. When a certain condition is satisfied, a Buffer Status Report (BSR) triggers a corresponding SR. And when the network equipment successfully receives the SR, allocating resources for the terminal equipment. The resource size allocated by the network device should be at least the resource size required for one BSR transmission. If the resource is enough to accommodate the data to be transmitted corresponding to the SR, the resource may be used to transmit the data, and if the resource is not enough to accommodate the data to be transmitted, the terminal device may send a BSR on the resource to inform the network device of how much resource the network device needs, so that the network device allocates uplink resources for the data to be transmitted according to the received BSR.

When the MAC Layer instructs a Physical Layer (PHY) to transmit an SR, an SR-prohibit timer (SR-prohibit timer) may be turned on. During the SR prohibit timer running, the SR cannot be transmitted again.

According to the current protocol, when the PUCCH resource for transmitting SR conflicts with the resource provided by the uplink grant, SR is not indicated to the PHY layer by the MAC layer for transmission. When a terminal device triggers an SR, the SR is in a "Pending" state, and when a MAC Protocol Data Unit (PDU) is transmitted, if the MAC PDU includes a BSR MAC CE or a resource provided by uplink authorization can accommodate all to-be-transmitted Data corresponding to the SR, the SR in the Pending state can be cancelled (cancel) when the MAC PDU is sent. That is, if the BSR is ready to be transmitted 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, the high-priority traffic may not be effectively transmitted. For example, a terminal device groups a MAC PDU for a resource provided by an uplink grant, and a service carried in the MAC PDU is an Enhanced Mobile Broadband (eMBB) service. If a conflict occurs between a resource provided by the Uplink grant, that is, a Physical Uplink Shared Channel (PUSCH) resource, and a PUCCH resource used for transmitting the SR, and it is an Ultra Reliable and Low Latency Communication (URLLC) service that triggers the SR, at this time, the terminal device expects the network device to know the condition of data to be transmitted by the terminal device as soon as possible, and thus the SR needs to be sent to the network device as soon as possible. However, according to the conventional method, if the SR is triggered before the MAC PDU is packaged, the SR is cancelled when the MAC PDU is transmitted, so that the performance of the URLLC service cannot be guaranteed.

The application provides an SR transmission method, which can realize effective data transmission when resources conflict.

Fig. 2 is a schematic flow chart of a method of SR transmission according to an embodiment of the present application. The method shown in fig. 2 may be performed by a terminal device, which may be, for example, terminal device 120 shown in fig. 1 described above. As shown in fig. 2, the illustrated method includes some or all of the following steps.

In 210, when a collision occurs between a PUCCH resource for transmitting an SR and a PUSCH resource for transmitting a MAC PDU, the terminal device cancels the SR at a first time.

the transmission condition of the SR;

a transmission condition of the MAC PDU;

a transmission condition of data to be transmitted on a Logical Channel (LCH) corresponding to the SR.

In this embodiment, when a collision occurs between a PUCCH resource for transmitting an SR and a PUSCH resource for transmitting a MAC PDU, a terminal device determines a first time to cancel (cancel) the SR based on a transmission condition of the SR, a transmission condition of the MAC PDU, a transmission condition of data to be transmitted on a logical channel corresponding to the SR, and the like. Therefore, the time for canceling the SR is determined according to the actual transmission condition of the data, so that the data to be transmitted on the logic channel corresponding to the SR can be effectively transmitted.

Wherein the MAC PDU includes a Medium Access Control Element (MAC CE), and the BSR MAC CE is configured to carry a BSR triggering the SR.

Optionally, the method further comprises: and the terminal equipment stops the SR prohibiting timer when the SR is cancelled at the first moment. And the SR forbidding timer does not allow the transmission of the SR within the timing duration.

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

the transmission frequency of the SR reaches the maximum retransmission frequency; alternatively, the first and second electrodes may be,

and the transmission frequency of the SR reaches M, wherein M is a positive integer and is less than the maximum retransmission frequency.

In other words, the first time is a time when the number of transmissions of the SR reaches its maximum number of retransmissions, or a time when the number of transmissions of the SR reaches M. When a collision occurs between a PUCCH resource for transmitting an SR and a PUSCH resource for transmitting a MAC PDU, the terminal device cancels the SR at a time when the transmission number of the SR reaches its maximum retransmission number, or at a time when the transmission number of the SR reaches M.

Where M may be network device configured, preconfigured, e.g. protocol specified, or terminal device self-determined.

Secondly, for the transmission condition of the MAC PDU, for example, at least one of the following conditions may be included:

the MAC PDU is transmitted over or successfully;

the Hybrid Automatic Repeat Request (HARQ) buffer of the MAC PDU is emptied;

a New Data Indicator (NDI) corresponding to the HARQ of the MAC PDU is flipped (toggled);

the network device schedules new MAC PDU transmission, or the network device schedules new transmission;

a first resource exists;

the transmission of the MAC PDU on the first resource is over or successful.

Wherein the first resource is available for transmission of the MAC PDU and the first resource does not conflict with resources used for transmission of an SR.

Wherein the MAC PDU transmission is finished or successfully transmitted, including at least one of: the initial transmission of the MAC PDU is finished or is successful; the MAC PDU retransmission is finished or is successfully retransmitted; and the transmission times, the transmission ending times or the transmission success times of the MAC PDU reach N, wherein N is a positive integer.

In other words, the first time is a time when the transmission of the MAC PDU ends or is successful, a time when the HARQ buffer of the MAC PDU is emptied, a time when the NDI corresponding to the HARQ of the MAC PDU is flipped, a time when a network device schedules a new transmission, a time when a terminal device determines that a first resource exists, or a time when the transmission of the MAC PDU on the first resource ends or is successful. And when the conflict occurs between the PUCCH resource for transmitting the SR and the PUSCH resource for transmitting the MAC PDU, the terminal equipment cancels the SR at the moment.

Wherein, the MAC PDU transmission is finished or successfully transmitted, the HARQ buffer of the MAC PDU is emptied, the NDI corresponding to the HARQ of the MAC PDU is inverted, and the network device schedules a new transmission, which all indicate that the MAC PDU has been successfully received by the network device, 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, so as to transmit the data to be transmitted on the LCH corresponding to the SR. At this time, the terminal device does not have to transmit the SR any more, and 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 available for transmitting the MAC PDU and the first resource does not conflict with a resource used for transmitting an SR, or the transmission of the MAC PDU on the first resource is finished or the transmission is successful, which both indicate that there is a first resource used for transmitting the MAC PDU after the conflicting resource occurs, that is, the BSR MAC CE carried in the MAC PDU may be transmitted to a network device through the first resource. At this time, the terminal device does not need to send the SR any more, and therefore, the terminal device may cancel the SR when the presence of the first resource is found or when the transmission of the MCA PDU on the first resource is completed.

Where N may be network device configured, preconfigured, e.g. protocol specified, or self-determined by the terminal device.

Thirdly, for the transmission condition of the data to be transmitted on the LCH corresponding to the SR, for example, the following may be included:

and a second resource exists, wherein the second resource can be used for transmitting at least part of data to be transmitted in the LCH corresponding to the SR.

When the terminal device determines that the second resource exists, 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 transmit the SR any more, and therefore, the terminal device may cancel the SR when finding that the second resource exists.

In the scheme of canceling the SR before the MAC PDU is packaged, the network device needs to wait until a longer MAC PDU is successfully received and analyzed, and then can acquire the BSR therein, so as to schedule uplink resources for the terminal device, so as to transmit data to be transmitted on the LCH corresponding to the SR. However, in this embodiment of the present application, the cancellation time of the SR is a first time, and before the first time, more transmission opportunities are provided for the SR, so that the SR can be received by a network device as soon as possible. For example, when the data on the LCH corresponding to the SR is a URLLC service with high priority, the network device can obtain the SR in time without waiting until the MAC PDU is received, thereby scheduling uplink resources for the URLLC service as soon as possible and ensuring effective transmission thereof.

The above describes at what time the SR in pending state is cancelled, and the following describes whether the SR needs to be transmitted when a resource collision occurs.

Optionally, in an implementation manner, the method further includes: and the terminal equipment determines whether the SR is transmitted on the resource with conflict or not according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the information of the PUCCH resource. These three modes are described below.

Mode 1

The terminal device determines whether to transmit the SR on the resource with conflict according to the LCH corresponding to the SR, and the determining includes: and if the LCH corresponding to the SR is the first LCH, the terminal equipment determines to transmit the SR on the resource with the conflict.

It should be understood that, in the embodiment of the present application, the LCH corresponding to the SR may be understood as that the SR is triggered by the terminal device 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, for example, satisfies at least one of the following conditions:

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

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

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

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

The preset threshold may be network device configured or pre-configured, e.g., protocol specified.

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

The specific value may be network device configured or pre-configured, e.g., protocol specified.

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

It should be noted that the priority level of the LCH channels is different from the priority level of the LCHs. The level of priority of the LCH channels can be network device configured or pre-configured, e.g., protocol agreed. For example, the rank may be divided into high, medium, and low, wherein the logical channels corresponding to the MAC entities may be sequentially divided into high, medium, and low ranks according to the order of their priorities from high to low. For another example, the rank may be divided into high and low, wherein the logical channels corresponding to the MAC entity may be sequentially divided into high and low ranks according to the order of their priorities from high to low. It is assumed that the priorities 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 levels of LCH 2 and LCH 3 are medium, and the priority level of LCH 4 is low. When the priority level of the first LCH channel is high, the terminal device may preferentially transmit the SR on the resource where the collision occurs.

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

The particular level may be network device configured or pre-configured, e.g., protocol specified.

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

(8) The first LCH is used for bearing specific service.

The specific traffic may for example comprise URLLC traffic or traffic with high reliability and low latency requirements.

(9) And 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 LCH with the highest priority in the LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

the priority of the first LCH is higher than or equal to the average value of the priorities of LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

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.

And assuming that the MAC PDU bears data on a second LCH and the priority of the first LCH is higher than that of the second LCH, the terminal equipment preferentially sends the SR when resource conflict occurs between the SR and the MAC PDU. Assuming that the MAC PDU carries data on a second LCH and a 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 preferentially sends the SR when resource collision occurs between the SR and the MAC PDU. And assuming that the MAC PDU carries data on a second LCH and a third LCH, and the priority of the first LCH is higher than that of any one of the second LCH and the third LCH, the terminal equipment preferentially sends the SR when resource conflict occurs between the SR and the MAC PDU.

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

Similarly, the priority level of the PUSCH resource may be divided into high, medium, and low, for example, wherein each channel may be divided into high, medium, and low levels in order from the high priority level to the low priority level. Alternatively, the rank may be divided into high and low, wherein the logical channels corresponding to the MAC entity may be sequentially divided into high and low ranks according to the order of 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, the terminal device preferentially transmits the SR when resource collision occurs between the SR and the MAC PDU.

(11) At least a portion of the data to be transmitted in the first LCH cannot be transmitted on the PUSCH resources or cannot be carried in the MAC PDU.

For example, the PUSCH resource is used to transmit an eMBB service, but the data to be transmitted on the first LCH is a URLLC service, then 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, the SR does not need to be triggered.

(12) And the time delay of the first LCH is less than or equal to the time 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; alternatively, the first and second electrodes may be,

the time delay of the first LCH is less than or equal to the average value of the time delays of the LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

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

(13) And 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 is within a specific range.

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

For example, the level of the first LCH is higher than or equal to the level of the highest LCH among the LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

the grade of the first LCH is higher than or equal to the average value of the grades of LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

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

Wherein the level of the LCH can be quantized to determine an average value of the levels of LCHs corresponding to data carried by the MAC PDU. For example, the level of the priority of the LCH is represented by a numerical value. Assuming that the rank is 0, 1 in the middle, and 2 in the low, the data carried by the MAC PDU corresponds to LCH 2 and LCH 3, and the ranks of LCH 2 and LCH 3 are high and low, respectively, then the average value of the ranks of LCH 2 and LCH 3 is 1, and if the rank of LCH 1 is high, i.e. 0, then the rank of LCH 1 is higher than the average value of the ranks of LCH 2 and LCH 3.

For another example, assuming that two levels, high and low, are configured for the LCH, the data carried by the MAC PDU corresponds to LCH 2, LCH 3, and LCH 4, and if the number of LCHs of the three LCHs whose levels are greater than the preset value is greater than or equal to 2, the average value of the levels of priority of LCH 2, LCH 3, and LCH 4 is considered to be high; if the number of LCHs of the three LCHs having a rank greater than the preset value is less than 2, the average of the ranks of priorities of LCH 2, LCH 3, and LCH 4 is considered low. Assuming that the preset value is 1, the levels of the priorities of LCH 2, LCH 3 and LCH 4 are high, high and low, respectively, i.e. 2, 2 and 0, respectively, it can be seen that the number of LCHs with a level greater than 1 in the three LCHs is 2, and then the average of the levels of the priorities of LCH 2, LCH 3 and LCH 4 is considered high. If the rank of LCH 1 is low, then the rank of LCH 1 is lower than the average of the ranks of LCH 2 and LCH 3.

Here, as for the priority and the level of the priority, a lower numerical value may indicate a higher priority or a higher level.

Mode 2

The terminal device determines whether to transmit the SR on the resource with conflict according to the service corresponding to the SR, including: and if the service corresponding to the SR is the first service, the terminal equipment determines to transmit the SR on the resource where the conflict occurs.

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

Mode 3

The terminal device determines whether to transmit the SR on the resource with conflict according to the information of the PUCCH resource, and the determining comprises the following steps: if the PUCCH resource meets at least one of the following conditions, the terminal equipment determines to transmit the SR on the resource where the conflict occurs:

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

the priority of the PUCCH resources is higher than a preset threshold;

the priority of the PUCCH resources is a specific priority;

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

It is to be understood that, in case an analogy can be made between the level of priority and the priority, the priority of the PUCCH resource may be compared with the level of LCH corresponding to the MAC PDU in the PUSCH to determine whether to preferentially transmit SR. For example, if the priority of the PUCCH resource is 0 and the rank of LCH corresponding to the MAC PDU in the PUSCH is low (indicated by 2), SR is preferentially transmitted when the PUCCH resource and the PUSCH resource collide with each other.

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

Optionally, in an implementation manner, if it is determined that the SR is transmitted on a resource where a collision occurs, the method further includes:

the terminal equipment transmits the SR on the PUCCH resource; alternatively, the first and second electrodes may be,

and the terminal equipment transmits the SR and the MAD PDU on the PUSCH resource.

Further, optionally, the terminal device transmits the SR and the MAD PDU on the PUSCH resource, including: and the terminal equipment transmits the SR and the MAD PDU on the PUSCH resource based on a multiplexing or punching mode.

It should be understood that the priority SR transmission described in the embodiments of the present application includes only SR transmission on the resource where collision occurs, and also includes simultaneous transmission of the SR and the MAC PDU on the resource where collision occurs.

One possible implementation based on the method shown in fig. 2 is described below in conjunction with fig. 3. The network device may send information of the SR configuration, information of the logical channel configuration, and the like to the terminal device, and the terminal device determines, based on the information, a PUCCH resource corresponding to each SR configuration and an SR configuration corresponding to each logical channel.

As shown in fig. 3, between time T0 to time T1, the terminal device triggers an SR corresponding to a first LCH, where the SR corresponding to the first LCH is configured to instruct the terminal device to transmit a corresponding SR by using PUCCH resource 1, and a service on the first LCH is a URLLC service. And, between time T1 and time T2, the terminal device receives Downlink Control Information (DCI), where the DCI is used to schedule an eMBB service and corresponds to HARQ process 1. And then, the terminal equipment packages the eMB service to obtain an MAC PDU 1, wherein the MAC PDU 1 comprises a BSR triggering the SR and corresponds to the HARQ process 1.

If the PUCCH resource 1 for transmitting the SR is in a resource collision with an uplink Shared Channel (UL-SCH) scheduled by the DCI, that is, a PUSCH resource for transmitting the MAC PDU. At this time, the terminal device determines whether to preferentially transmit the SR on the resource where the collision occurs based on the foregoing manner.

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

If the physical layer determines to transmit the SR preferentially at time T2 and allows the MAC PDU to be transmitted together with the SR, the terminal device transmits the SR together with the MAC PDU 1 on the PUSCH resource between times T2 to T3. Note 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 triggering the SR has been received by the network device. 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 know the condition that the URLLC service has data to be transmitted as soon as possible, thereby allocating uplink resources to the URLLC service as soon as possible and ensuring effective transmission of the URLLC service.

In the scheme of canceling the SR before the MAC PDU packet is packed, the network device may receive the BSR triggering the SR only at the earliest time T3. However, in the embodiment of the present application, as shown in fig. 3, even if the SR before the time T3 is not successfully transmitted, for example, the network device does not successfully decode the SR, the network device can acquire the BSR at the latest at the time T3. Compared with a scheme of canceling the SR before the MAC PDU group package, the method of the embodiment of the application does not prolong the time for receiving the BSR under the worst condition. On the contrary, before the time T3, the SR may be periodically transmitted multiple times, and the probability of successful transmission is high, so that 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 applicable to the conflict resolution between the SR and the Uplink grant resource, and is also applicable to the conflict resolution between other Uplink Control Information (UCI) and the Uplink grant resource, where the UCI includes, for example, HARQ Information, Channel State Information-Reference Signal (CSI-RS), and the like.

It should be noted that, without conflict, the embodiments and/or technical features in the embodiments described in the present application may be arbitrarily combined with each other, and the technical solutions obtained after the combination also fall within the protection scope of the present application.

In the embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Having described the method for downlink signal transmission according to the embodiment of the present application in detail, an apparatus according to the embodiment of the present application will be described below with reference to fig. 4 to 6, and the technical features described in the method embodiment are applicable to the following apparatus embodiments.

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

The processing unit 410 is configured to: when a conflict occurs between a Physical Uplink Control Channel (PUCCH) resource for transmitting a Scheduling Request (SR) and a physical uplink control channel (PUSCH) resource for transmitting a MAC PDU, the SR is cancelled at a first moment.

the transmission condition of the SR;

a transmission condition of the MAC PDU;

and the transmission condition of the data to be transmitted on the logic channel LCH corresponding to the SR.

Therefore, when a collision occurs between a PUCCH resource for transmitting an SR and a PUSCH resource for transmitting a MAC PDU, the terminal device determines a first time to cancel the SR based on a transmission condition of the SR, a transmission condition of the MAC PDU, a transmission condition of data to be transmitted on a logical channel corresponding to the SR, and the like. Therefore, the time for canceling the SR is determined according to the actual data transmission condition, so that the data to be transmitted on the logic 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 configured to carry a BSR triggering the SR.

Optionally, the transmission condition of the SR includes: the transmission frequency of the SR reaches the maximum retransmission frequency; or the transmission frequency of the SR reaches M, wherein M is a positive integer and is smaller than the maximum retransmission frequency.

Optionally, the transmission condition of the MAC PDU includes at least one of the following conditions: the MAC PDU is transmitted over or successfully; the HARQ buffer of the MAC PDU is emptied; the NDI corresponding to the HARQ of the MAC PDU is turned over; the network device schedules the transmission of a new MAC PDU; a first resource exists; the transmission of the MAC PDU on the first resource is finished or is successful, wherein the first resource can be used for transmitting the MAC PDU and does not conflict with the resource for transmitting SR.

Optionally, the MAC PDU transmission is finished or successfully transmitted, including at least one of the following cases: the initial transmission of the MAC PDU is finished or is successful; the MAC PDU retransmission is finished or is successfully retransmitted; and the number of times of the MAC PDU transmission completion or transmission success reaches N, wherein N is a positive integer.

Optionally, the transmission condition of the data to be transmitted on the LCH corresponding to the SR includes: and a second resource exists, wherein the second resource can be used for transmitting at least part of data to be transmitted in the LCH corresponding to the SR.

Optionally, the processing unit 410 is further configured to: and the terminal equipment determines whether the SR is transmitted on the resource with conflict or not according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the information of the PUCCH resource.

Optionally, the processing unit 410 is specifically configured to: if the LCH corresponding to the SR is the first LCH, determining to transmit the SR on the resource with conflict; wherein the first LCH satisfies at least one of the following conditions: the first LCH is the LCH with the highest priority in all LCHs; the first LCH is the LCH with the highest priority in the LCHs with data to be transmitted; the priority of the first LCH is higher than or equal to the LCH of 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 identification of the first LCH is a specific value; the first LCH is used for bearing specific services; 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 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 time delay of the first LCH is less than or equal to the time delay of the LCH corresponding to the data carried by the MAC PDU.

Optionally, the specific traffic comprises URLLC traffic.

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 LCH with the highest priority in 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 priorities of LCHs 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, determining to transmit the SR on the resource with the conflict; wherein the first service includes at least one of: URLLC service; services with high reliability and low latency requirements; and the 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 equipment determines to transmit the SR on the resource where the conflict occurs: the priority of the PUCCH resources is higher than or equal to the priority of the PUSCH resources; the priority of the PUCCH resources is higher than a preset threshold; the priority of the PUCCH resources 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: and transmitting the SR and the MAD PDU on the PUSCH resource based on a multiplexing or puncturing mode.

Optionally, the processing unit 410 is further configured to: and when the SR is cancelled at the first moment, stopping an SR prohibiting timer, wherein the transmission of the SR is not allowed within the timing duration of the SR prohibiting 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 brevity, the description is not repeated herein.

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 comprises a processor 510, and the processor 510 may call and run a computer program from a 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. From the memory 520, the processor 510 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into 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, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 530 may include a transmitter and a receiver, among others. The transceiver 530 may further include one or more antennas.

Optionally, the communication device 500 may specifically be a terminal device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 500 may specifically be a network device in this embodiment, and the communication device 500 may implement a corresponding process implemented by the network device in each method in this embodiment, which is not described herein again for brevity.

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 a 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. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

Optionally, the apparatus 600 may further comprise an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the apparatus 600 may further comprise an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the apparatus 600 may be applied to the terminal device in this embodiment, and the communication apparatus may implement the corresponding process implemented by the terminal device in each method in this embodiment, which is not described herein again for brevity.

Optionally, the apparatus 600 may be applied to a network device in this embodiment, and the communication apparatus may implement a corresponding process implemented by the network device in each method in this embodiment, which is not described herein again for brevity.

Alternatively, the apparatus 600 may be a chip. The chip may be, for example, a system-on-chip, or a system-on-chip.

The processor in the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

The memory in the embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

For example, the memory in the embodiment of the present application may also be a Static random access memory (Static RAM, SRAM), a Dynamic random access memory (Dynamic RAM, DRAM), a Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), a Double Data Rate Synchronous Dynamic random access memory (Double Data SDRAM, DDR SDRAM), an Enhanced Synchronous SDRAM (Enhanced SDRAM, ESDRAM), a Synchronous Link DRAM (SLDRAM), a Direct RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program. Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions. Optionally, the computer program product may be applied to the terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program. Optionally, the computer program may be applied to the terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

The terms "system" and "network" in embodiments of the present invention are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiment of the present invention, "B corresponding to (corresponding to) a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of scheduling request, SR, transmission, the method comprising:

when a Physical Uplink Control Channel (PUCCH) resource used for transmitting the SR conflicts with a Physical Uplink Shared Channel (PUSCH) resource used for transmitting a medium access control protocol data unit (MAC PDU), the terminal equipment cancels the SR at the first moment;

wherein the first time is determined according to at least one of the following information:

the transmission condition of the SR;

a transmission condition of the MAC PDU;

and the transmission condition of the data to be transmitted on the logic channel LCH corresponding to the SR.
The method of claim 1, wherein the transmission of the SR comprises:

the transmission frequency of the SR reaches the maximum retransmission frequency; alternatively, the first and second electrodes may be,

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

the MAC PDU is transmitted over or successfully;

the HARQ buffer of the MAC PDU is emptied;

the new data indication NDI corresponding to the HARQ of the MAC PDU is turned over;

the network device schedules the transmission of a new MAC PDU;

a first resource exists;

the transmission of the MAC PDU on the first resource is finished or is successful, wherein the first resource can be used for transmitting the MAC PDU and does not conflict with the resource for transmitting SR.
The method of claim 3, wherein the MAC PDU transmission is either complete or successful, and wherein the method comprises at least one of:

the initial transmission of the MAC PDU is finished or is successful;

the MAC PDU retransmission is finished or is successfully retransmitted;

and the number of times of the MAC PDU transmission completion or transmission success reaches N, wherein N is a positive integer.
The method according to any one of claims 1 to 4, wherein the transmitting condition of the data to be transmitted on the LCH corresponding to the SR comprises:

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

and the terminal equipment determines whether the SR is transmitted on the resource with conflict or not according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the information of the PUCCH resource.
The method of claim 6, wherein the determining, by the terminal device, whether to transmit the SR on the resource where the collision occurs according to the LCH corresponding to the SR comprises:

if the LCH corresponding to the SR is the first LCH, the terminal equipment determines to transmit the SR on the resource where the conflict occurs;

wherein the first LCH satisfies at least one of the following conditions:

the first LCH is the LCH with the highest priority in all LCHs;

the first LCH is the LCH with the highest priority in the LCHs with 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 identification of the first LCH is a specific value;

the first LCH is used for bearing specific services;

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;

a rank of priority of the first LCH is higher than or equal to a rank of priority of the PUSCH resources;

at least part of data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource or cannot be carried in the MAC PDU; alternatively, the first and second electrodes may be,

and the time delay of the first LCH is less than or equal to the time delay of the LCH corresponding to the data carried by the MAC PDU.
The method of claim 7, wherein the specific traffic comprises ultra-reliable low latency communication (URLLC) traffic.
The method according to claim 7 or 8, wherein the first LCH has a priority higher than or equal to that 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 LCH with the highest priority in the LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

the priority of the first LCH is higher than or equal to the average value of the priorities of LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

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 of claim 6, wherein the determining, by the terminal device, whether to transmit the SR on the resource where the collision occurs according to the service corresponding to the SR comprises:

if the service corresponding to the SR is the first service, the terminal equipment determines to transmit the SR on the resource where the conflict occurs;

wherein the first service includes at least one of:

URLLC service;

services with high reliability and low latency requirements;

and the service corresponding to the first LCH.
The method of claim 6, wherein the terminal device determines whether to transmit the SR on the resource where the collision occurs according to the information of the PUCCH resource, and comprises:

if the PUCCH resource meets at least one of the following conditions, the terminal equipment determines to transmit the SR on the resource where the conflict occurs:

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

the priority of the PUCCH resources is higher than a preset threshold;

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

the terminal equipment transmits the SR on the PUCCH resource; alternatively, the first and second electrodes may be,

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

and the terminal equipment transmits the SR and the MAD PDU on the PUSCH resource based on a multiplexing or punching mode.
The method according to any one of claims 1 to 13, further comprising:

and the terminal equipment stops the SR prohibiting timer when the SR is cancelled at the first moment, wherein the SR prohibiting timer is not allowed to transmit the SR within the timing duration.
A terminal device, characterized in that the terminal device comprises:

the scheduling method comprises the steps that a processing unit cancels a Scheduling Request (SR) at a first moment when a Physical Uplink Control Channel (PUCCH) resource used for transmitting the SR conflicts with a Physical Uplink Shared Channel (PUSCH) resource used for transmitting a media access control protocol data unit (MAC PDU);

wherein the first time is determined according to at least one of the following information:

the transmission condition of the SR;

a transmission condition of the MAC PDU;

and the transmission condition of the data to be transmitted on the logic channel LCH corresponding to the SR.
The terminal device of claim 15, wherein the transmission of the SR comprises:

the transmission frequency of the SR reaches the maximum retransmission frequency; alternatively, the first and second electrodes may be,

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

the MAC PDU is transmitted over or successfully;

the HARQ buffer of the MAC PDU is emptied;

the new data indication NDI corresponding to the HARQ of the MAC PDU is turned over;

the network device schedules the transmission of a new MAC PDU;

a first resource exists;

the transmission of the MAC PDU on the first resource is finished or is successful, wherein the first resource can be used for transmitting the MAC PDU and does not conflict with the resource for transmitting SR.
The terminal device of claim 17, wherein the MAC PDU transmission is over or successful, including at least one of:

the initial transmission of the MAC PDU is finished or is successful;

the MAC PDU retransmission is finished or is successfully retransmitted;

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

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

and the terminal equipment determines whether the SR is transmitted on the resource with conflict or not according to the LCH corresponding to the SR, or according to the service corresponding to the SR, or according to the information of the PUCCH resource.
The terminal device of claim 20, wherein the processing unit is specifically configured to:

if the LCH corresponding to the SR is the first LCH, determining to transmit the SR on the resource with conflict;

wherein the first LCH satisfies at least one of the following conditions:

the first LCH is the LCH with the highest priority in all LCHs;

the first LCH is the LCH with the highest priority in the LCHs with 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 identification of the first LCH is a specific value;

the first LCH is used for bearing specific services;

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 data to be transmitted in the first LCH cannot be transmitted on the PUSCH resource or cannot be carried in the MAC PDU; alternatively, the first and second electrodes may be,

and the time delay of the first LCH is less than or equal to the time delay of the LCH corresponding to the data carried by the MAC PDU.
The terminal device of claim 21, wherein the specific traffic comprises ultra-reliable low latency communication URLLC traffic.
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 LCH with the highest priority in the LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

the priority of the first LCH is higher than or equal to the average value of the priorities of LCHs corresponding to the data carried by the MAC PDU; alternatively, the first and second electrodes may be,

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 of claim 20, wherein the processing unit is specifically configured to:

if the service corresponding to the SR is the first service, determining to transmit the SR on the resource with the conflict;

wherein the first service includes at least one of:

URLLC service;

services with high reliability and low latency requirements;

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

determining to transmit the SR on the resource where the collision occurs if the PUCCH resource meets at least one of the following conditions:

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

the priority of the PUCCH resources is higher than a preset threshold;

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

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

and transmitting the SR and the MAD PDU on the PUSCH resource based on a multiplexing or puncturing mode.
The terminal device of any of claims 15 to 27, wherein the processing unit is further configured to:

and when the SR is cancelled at the first moment, stopping an SR prohibiting timer, wherein the transmission of the SR is not allowed within the timing duration of the SR prohibiting timer.
A communication device, characterized in that the communication device comprises a processor and a memory for storing a computer program, the processor being adapted to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 14.
An apparatus for scheduling request, SR, transmission, the apparatus comprising a processor configured to invoke and run a computer program from a memory, such that a device on which the apparatus is installed performs the method of any of claims 1 to 14.
The device of claim 30, wherein the device is a chip.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 14.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 14.
A computer program, characterized in that the computer program causes a computer to perform the method of any of claims 1 to 14.