CN113518446A

CN113518446A - Uplink transmission method and device

Info

Publication number: CN113518446A
Application number: CN202010281149.7A
Authority: CN
Inventors: 胡丹; 官磊; 徐修强; 许斌; 李胜钰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-10-19
Also published as: WO2021204261A1

Abstract

The application provides an uplink transmission method and device, which are used for solving the problem that high-priority services are abandoned and low-priority services are transmitted preferentially. In the application, when the priority corresponding to the uplink cancellation indication UL CI indicated by the network device is higher than the priority of the terminal device for uplink data transmission, and when a first time-frequency resource for uplink transmission by the terminal device overlaps with a second time-frequency resource indicated by the UL CI, the terminal device cancels first uplink transmission on part or all of the time-frequency resources of the first time-frequency resource; or, when the priority corresponding to the UL CI indicated by the network device is lower than or equal to the priority of the terminal device for uplink data transmission, the terminal device performs the first uplink transmission on the first time-frequency resource. The network device can indicate the rescheduled time-frequency resource and also indicate the priority of the uplink transmission of the rescheduled time-frequency resource, so that the terminal device can determine whether to cancel the upcoming or ongoing uplink transmission through the comparison of the priorities, thereby avoiding the problem that the high-priority service is abandoned and the low-priority service is preferentially transmitted.

Description

Uplink transmission method and device

Technical Field

The present application relates to communications technologies, and in particular, to an uplink transmission method and apparatus.

Background

When a service with high requirements on delay and reliability needs to be transmitted, for example, a high-reliability low-delay communication (URLLC) service, a terminal device sends a scheduling request to a network device, and the network device needs to schedule a suitable transmission resource for the service as soon as possible to meet the delay requirement of the service. At this time, if the network device has already scheduled the currently available resources to one or more other terminal devices for transmitting a service with low requirement on the delay, such as an enhanced mobile broadband (eMBB) service, the network device may reschedule the scheduled resources to the terminal device transmitting the URLLC service in order to ensure the low delay and high reliability requirements of the URLLC service.

At present, network equipment indicates resources for service transmission for terminal equipment, but because resources occupied by different services of the same terminal equipment are overlapped with each other, a high-priority service is abandoned, and a low-priority service is transmitted preferentially, so that the problem that the service quality cannot be guaranteed is caused.

Disclosure of Invention

The application provides an uplink transmission method and device to avoid the problem that high-priority services are abandoned and low-priority services are transmitted preferentially.

In a first aspect, the present application provides an uplink transmission method, where an execution main body of the method may be a terminal device, and may also be a chip applied in the terminal device. The following description will be given taking as an example that the execution main body is a terminal device. The method comprises the steps that the terminal equipment determines a first time-frequency resource and a first priority, and receives indication information of a second time-frequency resource and indication information of a second priority. The first time-frequency resource is used for first uplink transmission, the first time-frequency resource corresponds to the first priority, and the second time-frequency resource corresponds to the second priority; when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource are overlapped, the terminal equipment cancels the first uplink transmission on part or all of the time-frequency resources of the first time-frequency resource; or, when the second priority is lower than or equal to the first priority, the terminal device performs the first uplink transmission on the first time-frequency resource.

According to the method and the device, under the uplink multiplexing scene between the terminal devices, the network device sends the UL CI to the terminal devices, meanwhile, the terminal devices are indicated with the cell level priority corresponding to the time-frequency resources in the UL CI, the terminal devices are indicated with the cell level priority of the uplink transmission when the uplink transmission is scheduled, and through comparison of the two cell level priorities, the terminal devices can determine whether to cancel the uplink transmission to be started or in progress, so that the problems that high-priority services are abandoned and low-priority services are transmitted preferentially are avoided. In addition, when the network equipment sends the UL CI each time, the network equipment indicates the cell level priority corresponding to the time-frequency resource in the UL CI to the terminal equipment, and the terminal equipment can determine whether to cancel the uplink transmission in real time, so that the uplink transmission can be flexibly and accurately realized.

In a possible implementation manner, the receiving the indication information of the second time-frequency resource and the indication information of the second priority includes: and receiving an uplink cancellation indication (UL CI) from the network equipment, wherein the UL CI comprises indication information of the second time-frequency resource and indication information of the second priority.

By adding the priority indication domain in the UL CI, the network device can indicate the rescheduled time-frequency resource and the priority of the uplink transmission of the rescheduled time-frequency resource at the same time, without adding a new signaling, thereby achieving the purpose of dynamically indicating the cell priority by the UL CI.

In a possible implementation manner, the receiving the indication information of the second time-frequency resource and the indication information of the second priority includes: receiving an UL CI and a media access control element (MAC CE) from a network device, wherein the UL CI comprises indication information of the second time-frequency resource, and the MAC CE comprises indication information of the second priority.

The second priority is indicated to the terminal equipment through the MAC CE while the format of the existing UL CI is not changed, bits of the UL CI are saved, the MAC CE can indicate the priority of the terminal equipment on a Media Access Control (MAC) layer, the terminal equipment performs cell priority comparison on the MAC layer, and if the priority indicated by the MAC CE and corresponding to the UL CI is higher than the cell priority of the first uplink transmission to be started or in progress, a data packet does not need to be sent to a physical layer, so that the signaling overhead of the physical layer is reduced.

In one possible implementation manner, the determining the first time-frequency resource and the first priority includes: receiving Downlink Control Information (DCI) from the network equipment, wherein the DCI indicates the first time-frequency resource and the first priority; or receiving DCI and a first high-level signaling from the network device, where the DCI indicates the first time-frequency resource, the first high-level signaling indicates the first priority, and the first high-level signaling is Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE; or receiving a second high-level signaling from a network device, where the second high-level signaling is used to indicate the first time-frequency resource and the first priority, and the second high-level signaling is an RRC signaling or an MAC CE.

In a possible implementation manner, the canceling the first uplink transmission on the first time-frequency resource and the second time-frequency resource includes: canceling the first uplink transmission from a first symbol in the overlapping region to a last symbol of a Physical Uplink Shared Channel (PUSCH) when the first uplink transmission is PUSCH transmission; or, when the first uplink transmission is a channel sounding signal (SRS) transmission, canceling the first uplink transmission in the overlapping region.

In a second aspect, the present application provides an uplink transmission method, where an execution main body of the method may be a network device or a chip applied to the network device. The following description will be given taking as an example that the execution subject is a network device. The following description is made with the execution subject being a network device. The network equipment sends indication information of a second time-frequency resource and indication information of a second priority to the terminal equipment, wherein the second time-frequency resource corresponds to the second priority; when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource are overlapped, the network device does not receive a first uplink transmission on part or all of the time-frequency resources of the first time-frequency resource, the first time-frequency resource is a time-frequency resource used by the terminal device for the first uplink transmission, and the first time-frequency resource corresponds to the first priority; or, when the second priority is lower than or equal to the first priority, the network device performs the first uplink transmission on the first time-frequency resource.

In a possible implementation manner, the sending, to the terminal device, the indication information of the second time-frequency resource and the indication information of the second priority includes: and sending an uplink cancellation indication (UL CI) to the terminal equipment, wherein the UL CI comprises the indication information of the second time-frequency resource and the indication information of the second priority.

In a possible implementation manner, the sending, to the terminal device, the indication information of the second time-frequency resource and the indication information of the second priority includes: and sending an UL CI and a media access control element (MAC CE) to the terminal equipment, wherein the UL CI comprises the indication information of the second time-frequency resource, and the MAC CE comprises the indication information of the second priority.

In a possible implementation manner, before the sending the indication information of the second time-frequency resource and the indication information of the second priority to the terminal device, the method further includes: sending downlink control information DCI to the terminal equipment, wherein the DCI indicates the first time-frequency resource and the first priority; or, sending DCI and a first high-level signaling to the terminal device, where the DCI indicates the first time-frequency resource, the first high-level signaling only indicates the first priority, and the first high-level signaling is radio resource control RRC signaling or MAC CE; or sending a second high-level signaling to the terminal device, where the second high-level signaling is used to indicate the first time-frequency resource and the first priority, and the second high-level signaling is an RRC signaling or an MAC CE.

In a third aspect, the present application provides a communication apparatus, and reference may be made to the description of the first aspect for advantageous effects, which are not described herein again. The communication device has the functionality to implement the actions in the method instance of the first aspect described above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the communication device includes: a processing module, configured to determine a first time-frequency resource and a first priority, where the first time-frequency resource is used for first uplink transmission, and the first time-frequency resource corresponds to the first priority; a transceiver module, configured to receive indication information of a second time-frequency resource and indication information of a second priority, where the second time-frequency resource corresponds to the second priority indicated by the second priority indication information; the processing module is further configured to cancel the first uplink transmission on a part or all of the time-frequency resources of the first time-frequency resource when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource overlap each other; or, when the second priority is lower than or equal to the first priority, performing the first uplink transmission on the first time-frequency resource. The modules may perform corresponding functions in the method example of the first aspect, for specific reference, detailed description of the method example is omitted here for brevity.

In a fourth aspect, the present application provides a communication apparatus, and the advantageous effects may be found in the description of the second aspect and will not be described herein again. The communication device has the functionality to implement the actions in the method example of the second aspect described above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the communication device includes: the receiving and sending module is used for sending indication information of a second time-frequency resource and indication information of a second priority to the terminal equipment, wherein the second time-frequency resource corresponds to the second priority; a processing module, configured to, when the second priority is higher than the first priority and a first time-frequency resource and the second time-frequency resource overlap with each other, not receive a first uplink transmission on a part or all of the time-frequency resources of the first time-frequency resource, where the first time-frequency resource is a time-frequency resource used by the terminal device for the first uplink transmission and the first time-frequency resource corresponds to the first priority; or, when the second priority is lower than or equal to the first priority, performing the first uplink transmission on the first time-frequency resource. The modules may perform corresponding functions in the method example of the second aspect, for specific reference, detailed description in the method example is omitted here for brevity.

In a fifth aspect, the present application provides a communication apparatus, which may be the terminal device in the above method embodiment, or a chip disposed in the terminal device. The communication device comprises a processor and a communication interface, wherein the communication interface is used for receiving signals from other communication devices except the communication device and transmitting the signals to the processor or sending the signals from the processor to other communication devices except the communication device, and the processor is used for realizing the method in any one of the first aspect through logic circuits or executing code instructions.

In a sixth aspect, the present application provides a communication apparatus, which may be the network device in the above method embodiment, or a chip disposed in the network device. The communication device comprises a processor and a communication interface, wherein the communication interface is used for receiving signals from other communication devices except the communication device and transmitting the signals to the processor or sending the signals from the processor to other communication devices except the communication device, and the processor is used for realizing the method according to any one of the second aspect through logic circuits or executing code instructions.

In a seventh aspect, a computer program product is provided, the computer program product comprising: computer program code which, when run, causes the method performed by the terminal device in the above aspects to be performed.

In an eighth aspect, there is provided a computer program product comprising: computer program code which, when executed, causes the method performed by the network device in the above aspects to be performed.

In a ninth aspect, the present application provides a chip system, which includes a processor, and is configured to implement the functions of the terminal device in the methods of the above aspects. In one possible design, the system-on-chip further includes a memory for storing program instructions and/or data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a tenth aspect, the present application provides a chip system, which includes a processor for implementing the functions of the network device in the method of the above aspects. In one possible design, the system-on-chip further includes a memory for storing program instructions and/or data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In an eleventh aspect, the present application provides a computer-readable storage medium storing a computer program that, when executed, implements the method performed by the terminal device in the above-described aspects.

In a twelfth aspect, the present application provides a computer-readable storage medium storing a computer program that, when executed, implements the method performed by the network device in the above-described aspects.

Drawings

FIG. 1 is a schematic diagram of a possible communication architecture in an embodiment of the present application;

fig. 2 is a flowchart illustrating an uplink transmission method according to an embodiment of the present application;

fig. 3 is another flowchart illustrating an uplink transmission method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device in the embodiment of the present application.

Detailed Description

The terms "first," "second," and the like in the description examples and claims of this application and in the drawings are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor order. Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a list of steps or elements. A method, system, article, or apparatus is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, system, article, or apparatus.

It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

The related technical description related to the application:

first, uplink multiplexing mechanism between users

When the terminal device needs to transmit a service with high requirements on delay and reliability, such as a URLLC service, a scheduling request may be sent to the network device, and the network device schedules a suitable time-frequency resource for the terminal device as soon as possible to meet the delay requirement of the URLLC service. If the network device has already scheduled the currently available time-frequency resources to one or more other terminal devices for transmitting a service with low requirement on delay, such as an eMBB service, then the network device may reschedule the scheduled time-frequency resources to the terminal device transmitting the URLLC service in order to ensure the low delay and high reliability requirements of the URLLC service. The network device sends an uplink cancellation indication (UL CI) to one or more terminal devices transmitting the eMBB service, where the UL CI indicates a time-frequency resource to be scheduled by the network device to the terminal device transmitting the URLLC service. And after receiving the UL CI, the UE transmitting the eMBB service cancels the eMBB service transmission which is about to start or is in progress on the corresponding time-frequency resource.

Since the time-frequency resource to be scheduled by the network device to the terminal device transmitting the URLLC service may have been already scheduled to one or more terminal devices, the UL CI is group common Downlink Control Information (DCI) that can be sent to a group of terminal devices, that is, one UL CI sent by the network device may notify a group of terminal devices to cancel the upcoming or ongoing service transmission on the corresponding resource. The signaling overhead can be reduced by adopting group common DCI.

Second, priority

In the physical layer, one terminal device may support uplink traffic transmission with priorities of two terminal device levels, that is, in the terminal device, multiple uplink traffic transmitted by the terminal device is configured with a priority index (priority index)0 (low priority) or 1 (high priority), respectively. When the time-frequency resources of the physical layer occupied by the uplink service transmissions of different priorities of the terminal equipment collide with each other, the transmission of the low-priority service is cancelled, and only the high-priority service is transmitted.

For a terminal device supporting uplink service transmission with two terminal device levels of priority, when receiving UL CI, if there is an overlapping area between the time-frequency resource used for the uplink service transmission to be started or ongoing and the time-frequency resource indicated by UL CI, the following three methods can be used to determine which priority service transmission to cancel:

1. and canceling the uplink traffic transmission configured as the low priority, namely, the uplink traffic with the priority index of 0. If the uplink service of the terminal equipment is not configured with the priority, the default is that the service of the terminal equipment is all low priority.

2. All uplink transmissions on the time-frequency resources indicated by the UL CI are cancelled.

3. The method 1 or the method 2 is adopted through Radio Resource Control (RRC) signaling configuration.

In a cell, there may be more than two priorities of uplink services supported by all terminal devices. For the same uplink service, the configured priorities may be different in different terminal devices. Illustratively, table 1 shows an example of correspondence between the terminal device priority levels of three terminal devices accessed in a cell and the cell priority levels.

TABLE 1

As shown in table 1, the priority levels of the terminal devices include two priority levels, i.e., priority index 0 (low priority) and priority index 1 (high priority), and the cell-level priority levels include four priority levels, i.e., priority1-priority4 from low to high. The cell-level priorities of two uplink services supported by the terminal device 1 are priority1 and priority2, where the priority1 service is configured as the low-priority index of the terminal device level 0, and the priority2 service is configured as the high-priority index of the terminal device level 1. The cell-level priorities of the two uplink services supported by the terminal device 2 are priority2 and priority3, where the priority2 service is configured as the low-priority index of the terminal device level 0, and the priority3 service is configured as the high-priority index of the terminal device level 1. The cell-level priorities of the two uplink services supported by the terminal device 3 are priority1 and priority4, where the priority1 service is configured as the low-priority index of the terminal device level 0, and the priority4 service is configured as the high-priority index of the terminal device level 1. It can be seen that the uplink traffic with the cell priority of priority2 is configured as a high priority in terminal device 1 and as a low priority in terminal device 2.

Therefore, for a terminal device, the uplink services supported by the terminal device may have two types of priority configurations respectively, where one type of priority corresponds to one of all service priorities supported by all terminal devices in a serving cell or one of all service priorities supported by all terminal devices configured to need to detect UL CI in the serving cell, which is referred to as a cell priority for short; another class corresponds to a service priority of the total services supported by the terminal device, referred to as terminal device priority.

The above three methods for determining which priority traffic to cancel present problems:

in the method 1, the terminal device cancels the uplink service transmission configured as the low priority, and is not suitable for the terminal device which only supports one uplink service and the uplink service is not configured with the priority. Since the uplink service supported by the terminal device only may have a higher priority level in the whole cell, but is defaulted to be a low priority service in the terminal device, the uplink service may need to cancel the uplink service transmission supported by only when receiving the UL CI. In addition, as long as the uplink traffic to be started or being transmitted is of low priority, the terminal device of the received UL CI is faced with an operation of canceling the transmission of the uplink traffic. In both cases, the cell priority of the cancelled uplink traffic is higher than the cell priority of the uplink traffic of the terminal device represented by the UL CI. It can be seen that method 1 may occur where high priority traffic is dropped and low priority traffic is transmitted first.

In the method 2, the operation of directly canceling the priority of the uplink service to be started or being transmitted by the terminal equipment is not considered, so that the situation that the high-priority service is abandoned and the low-priority service is transmitted preferentially is more likely to occur.

In method 3, the above method 1 or method 2 is adopted by RRC signaling configuration, but the RRC signaling is semi-statically configured, that is, the network device completes the configuration before sending UL CI and scheduling uplink transmission for the terminal device. Therefore, it is highly likely that the network device does not know the relationship between the priority of the uplink service represented by the UL CI that may be transmitted in the future and the priority of the uplink service that the terminal device will start or is transmitting when configuring the RRC signaling parameter, and thus the method adopted by the terminal device cannot be accurately configured. The above problems still remain with either method 1 or method 2.

The present application provides an uplink transmission method to solve the problem in the related art that, in order to allow the terminal device receiving the UL CI to pass the service transmission in the UL CI, the terminal device needs to give up the upcoming or ongoing service transmission, so that the high priority service is given up and the low priority service is transmitted preferentially.

Fig. 1 is a schematic diagram of a possible network architecture applicable to the embodiment of the present application, which includes a terminal device 110 and an access network device 120. Terminal device 110 and access network device 120 may communicate over an air interface, which may be understood as a wireless interface between the terminal device and the access network device. The transmission of the air interface comprises uplink transmission and downlink transmission.

For example, uplink transmission refers to terminal device 110 sending uplink information to access network device 120. The uplink information may include one or more of uplink data information, uplink control information, and a Reference Signal (RS). A channel for transmitting uplink information is called an uplink channel, and the uplink channel may be a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH). The PUSCH is used to carry uplink data, which may also be referred to as uplink data information. The PUCCH is used to carry Uplink Control Information (UCI) fed back by the terminal device. The UCI may include Channel State Information (CSI), Acknowledgement (ACK)/Negative Acknowledgement (NACK), and the like.

Illustratively, downlink transmission refers to access network device 120 sending downlink information to terminal device 110. The downlink information may include one or more of downlink data information, downlink control information, and downlink reference signals. The downlink reference signal may be a channel state information reference signal (CSI-RS) or a Phase Tracking Reference Signal (PTRS). A channel for transmitting downlink information is called a downlink channel, and the downlink channel may be a Physical Downlink Shared Channel (PDSCH) or a Physical Downlink Control Channel (PDCCH). The PDCCH is used to carry DCI, and the PDSCH is used to carry downlink data, where the downlink data may also be referred to as downlink data information.

Optionally, in the network architecture shown in fig. 1, a core network device 130 may also be included. Terminal device 110 may be wirelessly connected to access network device 120, and access network device 120 may be connected to core network device 130 in a wired or wireless manner. Core network device 130 and access network device 120 may be separate and distinct physical devices, or core network device 130 and access network device 120 may be the same physical device with all/part of the logical functions of core network device 130 and access network device 120 integrated thereon.

In the network architecture shown in fig. 1, the terminal device 110 may be fixed or mobile, and is not limited. The network architecture shown in fig. 1 may further include other network devices, such as a wireless relay device and a wireless backhaul device, without limitation. In the architecture shown in fig. 1, the number of terminal devices, access network devices, and core network devices is not limited.

The technical scheme in the embodiment of the application can be applied to various communication systems. Such as a Long Term Evolution (LTE) system, a 5th generation (5G) mobile communication system, a future mobile communication system, and the like.

Some terms or expressions used in the present application are explained below, and the terms or expressions are also included as a part of the summary of the invention.

Terminal equipment

A terminal device, which may be referred to as a terminal for short, also called a User Equipment (UE), is a device with a wireless transceiving function. The terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, drones, balloons, satellites, etc.). The terminal equipment can be a mobile phone, a tablet personal computer, a computer with a wireless transceiving function, virtual reality terminal equipment, augmented reality terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in unmanned driving, wireless terminal equipment in telemedicine, wireless terminal equipment in a smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in a smart city and wireless terminal equipment in a smart family. The terminal equipment may also be fixed or mobile. The embodiments of the present application do not limit this.

In the embodiment of the present application, the apparatus for implementing the function of the terminal may be a terminal device; it may also be an apparatus, such as a system-on-chip, capable of supporting the terminal device to implement the function, and the apparatus may be installed in the terminal device. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a terminal device is taken as an example of a terminal device, and the technical solution provided in the embodiment of the present application is described.

Network device

The network device may be an access network device, and the access network device may also be referred to as a Radio Access Network (RAN) device, which is a device providing a wireless communication function for the terminal device. Access network equipment includes, for example but not limited to: a next generation base station (gbb) in 5G, an evolved node B (eNB), a baseband unit (BBU), a transceiving point (TRP), a Transmitting Point (TP), a base station in a future mobile communication system or an access point in a WiFi system, and the like. The access network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, a vehicle-mounted device, a network device in a PLMN network that is evolved in the future, and the like.

The terminal device may communicate with multiple access network devices of different technologies, for example, the terminal device may communicate with an access network device supporting Long Term Evolution (LTE), may communicate with an access network device supporting 5G, and may simultaneously communicate with an access network device supporting LTE and an access network device supporting 5G. The embodiments of the present application are not limited.

In the embodiment of the present application, the apparatus for implementing the function of the network device may be a network device; or may be a device, such as a system-on-chip, capable of supporting the network device to implement the function, and the device may be installed in the network device. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a network device is taken as an example of a network device, and the technical solution provided in the embodiment of the present application is described.

Fig. 2 is a flowchart of a first embodiment of an uplink transmission method in the present application, and as shown in fig. 2, the process 200 may be applied to the network architecture shown in fig. 1, and the method may be executed by a terminal device and a network device, or may also be executed by a chip in the terminal device and a chip in the network device. The network device in fig. 2 may be the access network device 120 in fig. 1 and the terminal device may be the terminal device 110 in fig. 1. Process 200 may be performed in various orders and/or concurrently and is not limited to the order of execution shown in FIG. 2. The uplink transmission method comprises the following steps:

step 201, the network device sends the indication information of the first time-frequency resource and the indication information of the first priority to the terminal device.

The first time-frequency resource is a time-frequency resource used by the terminal device for the first uplink transmission. The first uplink transmission is service transmission to be started or ongoing by the terminal device, and the first uplink transmission may be uplink data transmission on a PUSCH dynamically scheduled by the network device, or uplink data transmission on a PUSCH configured and authorized by the network device, or channel sounding signal (SRS) transmission. The SRS can be DCI activated aperiodic SRS (A-SRS), MAC CE activated semi-persistent SRS (SP-SRS), or semi-statically configured periodic SRS (P-SRS).

The first priority is a cell priority in the above related art, that is, the first priority corresponds to one of all service priorities supported by all terminal devices in the serving cell or one of all service priorities supported by all terminal devices configured to need to detect UL CI in the serving cell.

The first uplink transmission of the terminal device is configured or indicated as a traffic transmission with priority. The first uplink transmission may be of high or low priority within the terminal device, and the first uplink transmission has a cell level priority within the serving cell. The first time-frequency resource used for the first uplink transmission and the cell level priority of the first uplink transmission have a corresponding relation. Optionally, the priority of the first uplink transmission in the terminal device and the priority of the cell level of the first uplink transmission have a corresponding relationship.

In one possible implementation, the network device may send DCI to the terminal device, and the terminal device determines the first time-frequency resource and the first priority through the DCI. The situation is usually used for uplink data transmission on a PUSCH with dynamic scheduling and/or SRS transmission with dynamic scheduling in which the first uplink transmission is, according to a scheduling request of a terminal device, a network device allocates a time-frequency resource for uplink transmission to the terminal device, and sends indication information of the time-frequency resource to the terminal device by sending a downlink scheduling grant (UL grant) DCI, and meanwhile, the network device carries the indication information of the cell priority of the uplink transmission requested by the terminal device in the DCI. And the terminal equipment determines the first time-frequency resource and the first priority based on the indication information of the time-frequency resource and the indication information of the priority in the DCI.

In a possible implementation manner, the network device may send DCI and a first higher layer signaling to the terminal device, and the terminal device determines the first time-frequency resource through the DCI and determines the first priority through the first higher layer signaling. This situation is usually used for uplink data transmission or semi-persistent SRS transmission on PUSCH in which the first uplink transmission is a second type of configuration authorization, and the network device pre-configures the terminal device with the time-frequency resource for uplink transmission, and sends the indication information of the time-frequency resource to the terminal device by sending DCI of the UL grant. And the terminal equipment determines the first time-frequency resource based on the indication information of the time-frequency resource in the DCI. For configuring the authorized uplink data transmission, the network device may configure the cell level priority of the uplink transmission through a higher layer signaling, where the higher layer signaling may be RRC signaling or a medium access control element (MAC CE). One method is that the cell level priority of uplink transmission is directly carried in the high-level signaling, and the terminal equipment determines the first priority according to the high-level signaling. The other method is that the high-level signaling carries the identifier of the configuration authorization, the identifier of the configuration authorization and the priority of the cell level have a corresponding relation, the terminal equipment obtains the identifier of the configuration authorization after receiving the high-level signaling, and then the first priority is determined based on the corresponding relation between the identifier of the configuration authorization and the priority of the cell level.

In a possible implementation manner, the network device may send a second higher layer signaling to the terminal device, and the terminal device determines the first time-frequency resource and the first priority through the second higher layer signaling. The situation is usually used for uplink data transmission or periodic/semi-continuous SRS transmission on a PUSCH with first type configuration authorization, where the first uplink transmission is uplink data transmission or periodic/semi-continuous SRS transmission, the network device pre-configures a time-frequency resource for uplink transmission to the terminal device, and sends indication information of the time-frequency resource to the terminal device through a high-level signaling, and meanwhile, the network device carries a cell level priority of the uplink transmission in the high-level signaling, where the high-level signaling may be RRC signaling or MAC CE. One method is that the high-level signaling directly carries the priority of the cell level of the uplink transmission, and the terminal equipment determines the first time-frequency resource and the first priority according to the indication information of the time-frequency resource and the indication information of the priority in the high-level signaling. The other method is that the high-level signaling carries an identifier of the configuration authorization, the identifier of the configuration authorization and the priority of the cell level have a corresponding relation, the terminal equipment determines the first time-frequency resource according to the indication information of the time-frequency resource in the high-level signaling, obtains the identifier of the configuration authorization, and then determines the first priority based on the corresponding relation between the identifier of the configuration authorization and the priority of the cell level.

Step 202, the network device sends the indication information of the second time-frequency resource and the indication information of the second priority to the terminal device.

The second time frequency resource is the time frequency resource indicated by the network device in the UL CI, and as described above, the time frequency resource is the time frequency resource which the network device has already scheduled to the terminal device for the first uplink transmission, but intends to reschedule to another terminal device for the second uplink transmission at this time. The second uplink transmission may also be uplink data transmission on a dynamically scheduled PUSCH, uplink data transmission on a PUSCH configured with an authorization, or SRS transmission.

The second priority is also the cell priority in the above related art, that is, the second priority corresponds to one of all service priorities supported by all terminal devices in the serving cell or one of all service priorities supported by all terminal devices configured to need to detect UL CI in the serving cell.

The second time-frequency resource used for the second uplink transmission and the cell level priority of the second uplink transmission also have a corresponding relationship. In the application, the network device sends the UL CI to the terminal device to indicate the second time frequency resource, and at the same time, may indicate the second priority corresponding to the second time frequency resource.

In one possible implementation, the network device may send an UL CI to the terminal device, where the UL CI includes indication information of the second time-frequency resource and indication information of the second priority. By adding the priority indication domain in the UL CI, the network device can indicate the rescheduled time-frequency resource and the priority of the uplink transmission of the rescheduled time-frequency resource at the same time, without adding a new signaling, thereby achieving the purpose of dynamically indicating the cell priority by the UL CI.

In one possible implementation, the network device may send, to the terminal device, an UL CI and a MAC CE, where the UL CI includes indication information of the second time-frequency resource and the MAC CE includes indication information of the second priority. With UL CI, the network device can indicate the rescheduled time-frequency resources. The network device may trigger an MAC CE after sending the UL CI, where the network device carries indication information indicating a priority to indicate a priority of uplink transmission performed on the rescheduled time-frequency resource. Therefore, the format of the existing UL CI is not changed, the second priority is indicated to the terminal equipment at the same time, bits of the UL CI are saved, the indication of the priority of the terminal equipment on the MAC layer can be realized through the MAC CE, the terminal equipment carries out cell priority comparison on the MAC layer, and if the priority indicated by the MAC CE and corresponding to the UL CI is higher than the cell priority of the first uplink transmission to be started or in progress, a data packet does not need to be sent to the physical layer, so that the signaling overhead of the physical layer is reduced.

Thus, even if the terminal device does not know which other terminal device the second time-frequency resource is scheduled to, the terminal device does not know the type of uplink transmission of the second time-frequency resource which is scheduled again, but through the UL CI or the MAC CE, the terminal device can determine the second priority corresponding to the second time-frequency resource which is scheduled again, and the second priority is the cell priority.

It should be noted that, the above steps 201 and 202 may be performed in various sequences and/or simultaneously, and the present application is not limited to this specifically.

Step 203, when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource are overlapped, the terminal equipment cancels the first uplink transmission on part or all of the time-frequency resources of the first time-frequency resource.

At least a part of the time-frequency resources in the first time-frequency resources may be a part of the time-frequency resources in the first time-frequency resources, or may be all of the time-frequency resources in the first time-frequency resources.

The second priority being higher than the first priority means: the priority of the MAC CE indication indicated by the UL CI or triggered by the UL CI is higher than that of the first uplink transmission; or the cell level priority of the second uplink transmission transmitted on the second time-frequency resource is higher than the cell level priority of the first uplink transmission transmitted on the first time-frequency resource.

The overlapping of the first time frequency resource and the second time frequency resource comprises: the first time frequency resource and the second time frequency resource contain the same symbol in the time domain; or the first time-frequency resource and the second time-frequency resource comprise the same physical resource block or frequency band on the frequency domain; or the first time-frequency resource and the second time-frequency resource contain the same symbol in the time domain and contain the same physical resource block in the frequency domain corresponding to the same symbol.

In order to avoid interference caused by the uplink transmission with low priority to the uplink transmission with high priority, the terminal device may cancel the first uplink transmission in the overlapping area, and give up the time-frequency resource to the second uplink transmission with higher priority.

In one possible implementation manner, when the first uplink transmission is an uplink data transmission on a PUSCH, the terminal device may cancel the first uplink transmission starting from the first symbol of the overlapping region until the last symbol of the PUSCH. When the first uplink transmission is uplink data transmission of one PUSCH repetition, the terminal device may cancel transmission of the PUSCH repetition from the first symbol of the overlapping region until the last symbol of the PUSCH repetition.

In one possible implementation manner, when the first uplink transmission is SRS transmission, the terminal device may cancel transmission of the SRS in the overlapping area.

Accordingly, the network device does not receive the first uplink transmission on part or all of the time-frequency resources of the first time-frequency resources. The network device may then attempt to receive a second uplink transmission from the other terminal device on the overlapping area where the time-frequency resources are rescheduled. Similar to the first uplink transmission, the second uplink transmission may be an uplink data transmission on a PUSCH dynamically scheduled by the network device, an uplink data transmission on a PUSCH configured and authorized by the network device, or an SRS transmission. The SRS can be a-SRS activated by DCI, can also be SP-SRS activated by MAC CE, and can also be semi-statically configured period SRS and P-SRS.

It can be understood that the receiving of the uplink transmission by the network device includes demodulating data in the uplink transmission, combining and decoding Hybrid Automatic repeat request (HARQ), and the like; correspondingly, the network device does not receive uplink transmission on a part of time frequency resources may be understood as the network device does not perform demodulation, HARQ combining, and decoding on information received on the part of time frequency resources.

In one possible implementation, when the first uplink transmission is an uplink data transmission on a PUSCH, the network device may not receive the first uplink transmission starting from the first symbol of the overlapping region until the last symbol of the PUSCH. When the first uplink transmission is an uplink data transmission of one PUSCH repetition, the network device may not receive the transmission of the PUSCH repetition starting from the first symbol of the overlapping region until the last symbol of the PUSCH repetition.

In one possible implementation, when the first uplink transmission is an SRS transmission, the network device may not receive the transmission of the SRS in the overlapping area. The overlapping region refers to the same symbol included in the time domain of the first time-frequency resource and the second time-frequency resource and the same physical resource block included in the frequency domain corresponding to the same symbol.

The above description is a flow of determining, by the terminal device and the network device, the priority when there is only one first priority.

In a possible implementation manner, when the first priorities determined by the terminal device include at least two, the second priority being higher than the first priority means that the second priority is higher than the highest priority of the at least two first priorities. That is, the cell level priority of the second uplink transmission transmitted on the second time-frequency resource is higher than the highest cell level priority of the first uplink transmission transmitted on the first time-frequency resource. In this case, the at least two first priorities may form a set of priorities, i.e. the first priority with which the terminal device is configured is a set of priorities, including at least two priorities, and then the second priority being higher than the first priority means that the second priority is higher than the highest priority in the set of priorities.

In a possible implementation manner, the number of the first priorities determined by the terminal device is at least two, because the priorities refer to priorities of services, and the services correspond to logical channels of the MAC layer one to one, and a plurality of logical channels may correspond to one physical channel, so that uplink transmission performed on the first time-frequency resource may correspond to a plurality of logical channels, and further, the first time-frequency resource corresponds to a plurality of priorities.

In a possible implementation manner, if the terminal device obtains the second priority through the MAC CE and determines that the second priority is higher than or equal to the first priority, at this time, if the PUSCH of the physical layer has not started to transmit, the terminal device will not create a data packet related to the first uplink transmission any more, and will not transmit a MAC Protocol Data Unit (PDU) to the physical layer; if the PUSCH of the physical layer has already started to be transmitted, the terminal device has already transmitted the MAC PDU related to the first uplink transmission to the physical layer, and the terminal device may instruct the physical layer to cancel the related transmission through a message between the MAC layer and the physical layer.

Fig. 3 is a flowchart of a second embodiment of the uplink transmission method in the present application, and as shown in fig. 3, the process 300 may be applied to the network architecture shown in fig. 1, and the method may be executed by the terminal device and the network device, or may also be executed by a chip in the terminal device and a chip in the network device. The network device in fig. 3 may be the access network device 120 in fig. 1 and the terminal device may be the terminal device 110 in fig. 1. Process 300 may be performed in various orders and/or concurrently and is not limited to the order of execution shown in FIG. 3. The uplink transmission method comprises the following steps:

step 301, the network device sends the indication information of the first time-frequency resource and the indication information of the first priority to the terminal device.

Step 301 is similar to step 201 described above, and will not be described herein again.

Step 302, the network device sends the indication information of the second time-frequency resource and the indication information of the second priority to the terminal device.

Step 302 is similar to step 202 described above, and will not be described herein again.

It should be noted that, the above steps 301 and 302 may be performed in various sequences and/or simultaneously, and the present application is not limited to this.

And step 303, when the second priority is lower than or equal to the first priority, the terminal device performs the first uplink transmission on the first time-frequency resource.

The second priority being lower than or equal to the first priority means: the cell level priority of the second uplink transmission transmitted on the second time frequency resource is lower than or equal to the cell level priority of the first uplink transmission transmitted on the first time frequency resource.

In order to avoid interference of the uplink transmission with the high priority caused by the uplink transmission with the low priority, the terminal device may not care for the UL CI and still perform the first uplink transmission.

Accordingly, the network device receives a first uplink transmission on a first time-frequency resource. The first priority and the second priority are indicated to the terminal device by the network device through DCI or higher layer signaling, so the network device can determine the relationship between the first priority and the second priority. When the network device determines that the second priority is lower than or equal to the first priority, it determines that the terminal device still performs the first uplink transmission, and the network device can also receive the first uplink transmission through the first time-frequency resource.

In one possible implementation, when the first priorities determined by the terminal device include at least two, the second priority being lower than or equal to the first priority means that the second priority is lower than or equal to the highest priority of the at least two first priorities. That is, the cell level priority of the second uplink transmission transmitted on the second time-frequency resource is lower than or equal to the highest cell level priority of the first uplink transmission transmitted on the first time-frequency resource.

In this application, when the second priority is equal to the first priority, the method of step 203 may be adopted, where the terminal device cancels the first uplink transmission on part or all of the time-frequency resources of the first time-frequency resources, and the network device does not receive the first uplink transmission on part or all of the time-frequency resources of the first time-frequency resources; the method in step 303 may also be adopted, where the terminal device performs the first uplink transmission on the first time-frequency resource, and the network device receives the first uplink transmission on the first time-frequency resource. The present application is not particularly limited to this case.

In the method embodiments shown in fig. 2 and fig. 3, it is considered that a plurality of uplink transmissions occupying the same time-frequency resource may be from a plurality of terminal devices, and therefore, when comparing priorities, priorities of the same standard or type need to be adopted, and in the priority introduction, a high priority and a low priority in a terminal device are terminal device priority priorities, which can only be used for service comparison in the terminal device, and the same service may be configured as different terminal device priority in different terminal devices. Only the cell level priority is the service priority in all service priorities supported by all terminal devices in the serving cell or the service priority in all service priorities supported by all terminal devices configured to need to detect UL CI in the serving cell, so the first priority and the second priority are both cell level priorities.

In the application, the network device may configure a corresponding relationship between a first type of priority and a second type of priority for the accessed terminal device, where the first type of priority is a cell priority, and the second type of priority refers to a high priority or a low priority in the terminal device. One second type of priority corresponds to one or more first type of priorities. The network device may configure the correspondence between the first priority and the second priority according to a third higher layer signaling, where the third higher layer signaling may be RRC signaling or MAC CE.

Illustratively, table 2 shows another example of correspondence between the terminal device priority levels of four terminal devices accessed in a cell and the cell priority levels.

TABLE 2

As shown in table 2, the priority levels of the terminal devices include two priority levels, i.e., priority index 0 (low priority) and priority index 1 (high priority), and the cell-level priority levels include four priority levels, i.e., priority1-priority4 from low to high. In the two types of uplink traffic supported by the terminal device 1, the priority index with low priority is 0 and corresponds to the priority1, and the priority index with high priority is 1 and corresponds to the priority 2. In the two types of uplink traffic supported by the terminal device 2, the priority index with low priority is 0 and corresponds to the priority2, and the priority index with high priority is 1 and corresponds to the priority 3. In the two types of uplink traffic supported by the terminal device 3, the priority index with low priority is 0 and corresponds to the priority1, and the priority index with high priority is 1 and corresponds to the priority 4. The terminal device 4 supports an uplink service, which is not configured with a high priority or a low priority, and the cell priority of the uplink service is priority 3. In this example, the priority level in the terminal device and the cell level priority level are in one-to-one correspondence.

Illustratively, table 3 shows another example of correspondence between the terminal device priority levels of three terminal devices accessed in a cell and the cell priority levels.

TABLE 3

As shown in fig. 3, the priority levels of the terminal devices include two priority levels, i.e., priority index 0 (low priority) and priority index 1 (high priority), and the cell-level priority levels include eight priority levels, i.e., priority1-priority8 from low to high. Among the four uplink services supported by the terminal device 1, the priority index with low priority is 0 and corresponds to the priority1 and the priority2, and the priority index with high priority is 1 and corresponds to the priority3 and the priority 4. Among the seven uplink traffic supported by the terminal device 2, the low priority index is 0 and corresponds to priority1, priority3 and priority4, and the high priority index is 1 and corresponds to priority5, priority6, priority7 and priority 8. The terminal device 3 supports two uplink services, which are not configured with high priority or low priority, and the cell priorities are priority6 and priority7, respectively. In this example, the priority level within the terminal device and the cell level priority level are in a one-to-many correspondence relationship.

In a possible implementation manner, the network device may also configure the first class priority and the second class priority of the terminal device separately, without establishing a correspondence between the first class priority and the second class priority.

Fig. 4 is a schematic structural diagram of a possible communication device provided in an embodiment of the present application. The communication devices can realize the functions of the terminal device or the network device in the above method embodiments, and therefore, the beneficial effects of the above method embodiments can also be realized. In this embodiment of the application, the communication apparatus may be the terminal device 110 shown in fig. 1, the access network device 130 shown in fig. 1, or a module (e.g., a chip) applied to the terminal device or the access network device.

As shown in fig. 4, the communication device 400 includes a transceiver module 401 and a processing module 402. The communication apparatus 400 may be used to implement the functions of the terminal device or the network device in the method embodiments shown in fig. 2 or fig. 3.

When the communication apparatus 400 is used to implement the functions of the terminal device in the method embodiments described in fig. 2 or fig. 3: a processing module 402, configured to determine a first time-frequency resource and a first priority, where the first time-frequency resource is used for first uplink transmission, and the first time-frequency resource corresponds to the first priority; a transceiver module 401, configured to receive indication information of a second time-frequency resource and indication information of a second priority, where the second time-frequency resource corresponds to the second priority indicated by the second priority indication information; the processing module 402 is further configured to cancel the first uplink transmission on a part or all of the time-frequency resources of the first time-frequency resource when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource are overlapped; or, when the second priority is lower than or equal to the first priority, performing the first uplink transmission on the first time-frequency resource.

When the communication apparatus 400 is used to implement the functions of the network device in the method embodiments described in fig. 2 or fig. 3: a transceiver module 401, configured to send, to a terminal device, indication information of a second time-frequency resource and indication information of a second priority, where the second time-frequency resource corresponds to the second priority; a processing module 402, configured to, when the second priority is higher than the first priority and a first time-frequency resource and the second time-frequency resource are overlapped, not receive a first uplink transmission on a part of or all time-frequency resources of the first time-frequency resource, where the first time-frequency resource is a time-frequency resource used by the terminal device for the first uplink transmission, and the first time-frequency resource corresponds to the first priority; or, when the second priority is lower than or equal to the first priority, performing the first uplink transmission on the first time-frequency resource.

For a more detailed description of the transceiver module 401 and the processing module 402, reference may be made to the description of the above method embodiment, and no further description is provided here.

Fig. 5 is a schematic structural diagram of a possible communication device provided in an embodiment of the present application. These communication apparatuses 500 can implement the functions of the terminal device or the network device in the above method embodiments, and therefore can also implement the beneficial effects of the above method embodiments. In this embodiment of the application, the communication apparatus 500 may be the terminal device 110 shown in fig. 1, the access network device 130 shown in fig. 1, or a module (e.g., a chip) applied to the terminal device or the access network device.

As shown in fig. 5, the communication device 500 includes a processor 510 and an interface circuit 520. Processor 510 and interface circuit 520 are coupled to each other. It is understood that the interface circuit 520 may be a transceiver or an input-output interface. Optionally, the communication device 500 may further include a memory 530 for storing instructions executed by the processor 510 or for storing input data required by the processor 510 to execute the instructions or for storing data generated by the processor 510 after executing the instructions.

When the communication device 500 is used to implement the method in the above method embodiments, the processor 510 is configured to perform the functions of the processing module 402, and the interface circuit 520 is configured to perform the functions of the transceiver module 401.

When the communication apparatus 500 is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, wherein the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, where the information is sent by the terminal device to the network device.

When the communication apparatus 500 is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, wherein the information is sent to the network device by the terminal device; alternatively, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the network device to the terminal device.

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), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. 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 the embodiments of the present application may be directly implemented by a hardware encoding processor, or implemented by a combination of hardware and software modules in the encoding 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 referred to in the various embodiments above may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (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 (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

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 units is only one logical 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 (personal computer, server, network device, or the like) 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

1. An uplink transmission method, comprising:

determining a first time-frequency resource and a first priority, wherein the first time-frequency resource is used for first uplink transmission and corresponds to the first priority;

receiving indication information of a second time-frequency resource and indication information of a second priority, wherein the second time-frequency resource corresponds to the second priority;

when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource are overlapped, canceling the first uplink transmission on part or all of the time-frequency resources of the first time-frequency resource; alternatively, the first and second electrodes may be,

performing the first uplink transmission on the first time-frequency resource when the second priority is lower than or equal to the first priority.

2. The method of claim 1, wherein receiving the information indicative of the second time-frequency resource and the information indicative of the second priority comprises:

and receiving an uplink cancellation indication (UL CI) from the network equipment, wherein the UL CI comprises indication information of the second time-frequency resource and indication information of the second priority.

3. The method of claim 1, wherein receiving the information indicative of the second time-frequency resource and the information indicative of the second priority comprises:

receiving an UL CI and a media access control element (MAC CE) from a network device, wherein the UL CI comprises indication information of the second time-frequency resource, and the MAC CE comprises indication information of the second priority.

4. The method of any of claims 1-3, wherein the determining the first time-frequency resource and the first priority comprises:

receiving Downlink Control Information (DCI) from the network equipment, wherein the DCI indicates the first time-frequency resource and the first priority; alternatively, the first and second electrodes may be,

receiving DCI and a first high-layer signaling from the network device, wherein the DCI indicates the first time-frequency resource, the first high-layer signaling indicates the first priority, and the first high-layer signaling is Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE; alternatively, the first and second electrodes may be,

receiving a second high-level signaling from a network device, where the second high-level signaling is used to indicate the first time-frequency resource and the first priority, and the second high-level signaling is an RRC signaling or an MAC CE.

5. The method according to any of claims 1-4, wherein the cancelling the first uplink transmission on the first and second time-frequency resources comprises:

canceling the first uplink transmission from a first symbol in the overlapping region to a last symbol of a Physical Uplink Shared Channel (PUSCH) when the first uplink transmission is PUSCH transmission; alternatively, the first and second electrodes may be,

and when the first uplink transmission is channel sounding signal (SRS) transmission, canceling the first uplink transmission in the overlapping area.

6. An uplink transmission method, comprising:

sending indication information of a second time-frequency resource and indication information of a second priority to terminal equipment, wherein the second time-frequency resource corresponds to the second priority;

when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource are overlapped, not receiving a first uplink transmission on part or all of the time-frequency resources of the first time-frequency resource, wherein the first time-frequency resource is a time-frequency resource used by the terminal equipment for the first uplink transmission and corresponds to the first priority; alternatively, the first and second electrodes may be,

7. The method according to claim 6, wherein said sending the indication information of the second time-frequency resource and the indication information of the second priority to the terminal device comprises:

and sending an uplink cancellation indication (UL CI) to the terminal equipment, wherein the UL CI comprises the indication information of the second time-frequency resource and the indication information of the second priority.

8. The method according to claim 6, wherein said sending the indication information of the second time-frequency resource and the indication information of the second priority to the terminal device comprises:

and sending an UL CI and a media access control element (MAC CE) to the terminal equipment, wherein the UL CI comprises the indication information of the second time-frequency resource, and the MAC CE comprises the indication information of the second priority.

9. The method according to any of claims 6-8, wherein before sending the information indicating the second time-frequency resource and the information indicating the second priority to the terminal device, further comprising:

sending downlink control information DCI to the terminal equipment, wherein the DCI indicates the first time-frequency resource and the first priority; alternatively, the first and second electrodes may be,

sending DCI and a first high-level signaling to the terminal equipment, wherein the DCI indicates the first time-frequency resource, the first high-level signaling only indicates the first priority, and the first high-level signaling is Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE; alternatively, the first and second electrodes may be,

and sending a second high-level signaling to the terminal equipment, wherein the second high-level signaling is used for indicating the first time-frequency resource and the first priority, and the second high-level signaling is RRC signaling or MAC CE.

10. A communications apparatus, comprising:

a processing module, configured to determine a first time-frequency resource and a first priority, where the first time-frequency resource is used for first uplink transmission, and the first time-frequency resource corresponds to the first priority;

the receiving and sending module is used for receiving indication information of a second time-frequency resource and indication information of a second priority, and the second time-frequency resource corresponds to the second priority;

the processing module is further configured to cancel the first uplink transmission on a part or all of the time-frequency resources of the first time-frequency resource when the second priority is higher than the first priority and the first time-frequency resource and the second time-frequency resource overlap each other; or, when the second priority is lower than or equal to the first priority, performing the first uplink transmission on the first time-frequency resource.

11. The apparatus of claim 10, wherein the transceiver module is specifically configured to receive an uplink cancellation indication (UL CI) from a network device, and wherein the UL CI comprises indication information of the second time-frequency resource and indication information of the second priority.

12. The apparatus according to claim 10, wherein the transceiver module is specifically configured to receive an UL CI and a medium access control element MAC CE from a network device, the UL CI includes indication information of the second time-frequency resource, and the MAC CE includes indication information of the second priority.

13. The apparatus according to any of claims 10-12, wherein the transceiver module is further configured to receive downlink control information DCI from the network device, where the DCI indicates the first time-frequency resource and the first priority; or receiving DCI and a first high-level signaling from the network device, where the DCI indicates the first time-frequency resource, the first high-level signaling indicates the first priority, and the first high-level signaling is Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE; or receiving a second high-level signaling from a network device, where the second high-level signaling is used to indicate the first time-frequency resource and the first priority, and the second high-level signaling is an RRC signaling or an MAC CE.

14. The apparatus according to any of claims 10-13, wherein the processing module is specifically configured to cancel the first uplink transmission from a first symbol in the overlap region to a last symbol of a physical uplink shared channel, PUSCH, transmission when the first uplink transmission is a PUSCH transmission; or, when the first uplink transmission is a channel sounding signal (SRS) transmission, canceling the first uplink transmission in the overlapping region.

15. A communications apparatus, comprising:

the receiving and sending module is used for sending indication information of a second time-frequency resource and indication information of a second priority to the terminal equipment, wherein the second time-frequency resource corresponds to the second priority;

a processing module, configured to, when the second priority is higher than the first priority and a first time-frequency resource and the second time-frequency resource overlap with each other, not receive a first uplink transmission on a part or all of the time-frequency resources of the first time-frequency resource, where the first time-frequency resource is a time-frequency resource used by the terminal device for the first uplink transmission and the first time-frequency resource corresponds to the first priority; or, when the second priority is lower than or equal to the first priority, performing the first uplink transmission on the first time-frequency resource.

16. The apparatus according to claim 15, wherein the transceiver module is specifically configured to send an uplink cancellation indication UL CI to the terminal device, where the UL CI includes indication information of the second time-frequency resource and indication information of the second priority.

17. The apparatus according to claim 15, wherein the transceiver module is specifically configured to transmit an UL CI and a media access control element, MAC CE, to the terminal device, wherein the UL CI includes indication information of the second time-frequency resource, and the MAC CE includes indication information of the second priority.

18. The apparatus according to any of claims 15-17, wherein the transceiver module is further configured to send downlink control information DCI to the terminal device, where the DCI indicates the first time-frequency resource and the first priority; or, sending DCI and a first high-level signaling to the terminal device, where the DCI indicates the first time-frequency resource, the first high-level signaling only indicates the first priority, and the first high-level signaling is radio resource control RRC signaling or MAC CE; or sending a second high-level signaling to the terminal device, where the second high-level signaling is used to indicate the first time-frequency resource and the first priority, and the second high-level signaling is an RRC signaling or an MAC CE.

19. A communication device comprising a processor and a communication interface for receiving and transmitting signals from or sending signals to other communication devices than the communication device, the processor being adapted to implement the method of any one of claims 1 to 9 by means of logic circuits or executing code instructions.

20. A computer-readable storage medium, characterized in that it stores a computer program which, when executed, implements the method according to any one of claims 1 to 9.