CN113301659A

CN113301659A - Indication method and device for canceling uplink transmission

Info

Publication number: CN113301659A
Application number: CN202010107603.7A
Authority: CN
Inventors: 高飞; 焦淑蓉; 花梦; 李军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2021-08-24

Abstract

An indication method and device for canceling uplink transmission are provided, the method includes: the terminal equipment receives the first DCI and the second DCI, and when a first bit in the first DCI and a second bit in the second DCI indicate overlapped time-frequency resources and corresponding cancellation indications of the first bit and the second bit on the overlapped time-frequency resources are different, the terminal equipment can determine whether uplink transmission on the overlapped time-frequency resources is cancelled according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit, so that the problem of uplink transmission when the cancellation indications of different DCIs on the overlapped time-frequency resources conflict is solved.

Description

Indication method and device for canceling uplink transmission

Technical Field

The embodiment of the application relates to the field of wireless communication, in particular to an indication method and device for cancelling uplink transmission.

Background

Ultra-reliable and low-latency communication (URLLC) is one of three typical services of a fifth generation mobile communication (5th generation, 5G) system, and its main application scenarios include: unmanned, telemedicine, etc., which place more stringent demands on reliability and latency. The specific requirements of URLLC services include: the data transmission reliability reaches 99.999%, the transmission delay is lower than 1ms, and the instruction overhead is reduced as much as possible under the condition of meeting the requirements of high reliability and low delay.

A new Downlink Control Information (DCI) is introduced into the URLLC, that is, DCI formats 2-4, and this DCI is used to indicate whether a terminal device cancels uplink transmission on a corresponding time-frequency resource, and therefore may also be referred to as Cancellation Indication (CI).

In the prior art, due to network configuration, time-frequency resources indicated between two or more DCI transmitted by a network device to a terminal device may overlap. In this scenario, when there is a conflict between cancellation indications of different DCIs on overlapping time-frequency resources, for example, one DCI indicates to cancel uplink transmission, and another DCI indicates not to cancel uplink transmission, how to handle the conflict, there is no effective solution in the industry at present.

Disclosure of Invention

The embodiment of the application provides an indication method and device for cancelling uplink transmission, which are used for solving the problem of uplink transmission when conflict exists in cancelling indication on overlapped resources, so as to improve the flexibility of a system and fully utilize network resources.

In a first aspect, an embodiment of the present application provides an indication method for canceling uplink transmission, where the method may be executed by a terminal device, and the method includes: the terminal equipment receives first Downlink Control Information (DCI) in a first time unit, wherein the first DCI comprises a first bit sequence, and a first bit in the first bit sequence is used for indicating whether uplink transmission on first time-frequency resources is cancelled or not; the terminal equipment receives a second DCI in a second time unit, wherein the second DCI comprises a second bit sequence, a second bit in the second bit sequence is used for indicating whether uplink transmission on a second time-frequency resource is cancelled, and the second time unit is behind the first time unit; when the first time-frequency resource and the second time-frequency resource have overlapped time-frequency resources and the values of the first bit and the second bit are different, the terminal device may determine whether to cancel uplink transmission on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit, where the third time-frequency resource is the time-frequency resource in which the first time-frequency resource and the second time-frequency resource are overlapped.

In the embodiment of the application, when the time-frequency resources indicated by the first bit in the first DCI and the time-frequency resources indicated by the second bit in the second DCI overlap each other and the cancellation indications of the first bit and the second bit on the overlapped time-frequency resources collide each other, the terminal device may determine whether the terminal device performs uplink transmission on the overlapped time-frequency resources according to the time-domain resource granularity respectively indicated by the first bit and the second bit, so as to solve the uplink transmission problem when the cancellation indications of different DCIs on the overlapped time-frequency resources collide each other.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may include: when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time-frequency resource is a proper subset of the second time-frequency resource, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the first bit.

By adopting the above technical scheme, in this situation, because the contents indicated by the first bit and the second bit have conflict, the terminal device can determine whether to cancel the uplink transmission on the third time-frequency resource according to the indication of the first bit and the principle of taking the small-granularity indication as the priority, thereby effectively improving the accuracy of the uplink scheduling.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the first bit may include: and when the first bit indicates not to cancel the uplink transmission and the second bit indicates to cancel the uplink transmission, the terminal equipment determines not to cancel the uplink transmission on the third time-frequency resource.

By adopting the above technical scheme, in this situation, because the contents indicated by the first bit and the second bit have conflict, the terminal device can also perform uplink transmission on the third time-frequency resource according to the principle of taking indication transmission as priority and according to the indication of the first bit, so that the time-frequency resource can be utilized as much as possible to perform uplink transmission, and the resource utilization rate is improved.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the first bit may include: when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled, the terminal equipment can report an information configuration error indication to the network equipment.

By adopting the technical scheme, under the condition, the terminal equipment can determine that the current condition is the configuration which is not supported by the system according to the time domain resource granularity indicated by the first bit and the second bit, the content indicated by the first bit and the second bit, the overlapping condition of the indicated resources and the like, and report the information configuration error indication to the network equipment.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may include: when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the second time frequency resource is a proper subset of the first time frequency resource, the terminal device may determine whether to cancel uplink transmission on the third time frequency resource according to the second bit.

By adopting the above technical scheme, in this situation, because the contents indicated by the first bit and the second bit have conflict, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the indication of the second bit based on the principle that the indication with the small granularity is preferred or the indication in the latest-sent DCI is preferred, thereby improving the accuracy of uplink scheduling.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the second bit may include: and when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled, the terminal equipment determines that the uplink transmission on the third time-frequency resource is not cancelled.

By adopting the above technical scheme, in this situation, because the contents indicated by the first bit and the second bit have conflict, the terminal device can also perform uplink transmission on the third time-frequency resource according to the principle of taking indication transmission as priority and the indication of the second bit, so that the time-frequency resource can be utilized as much as possible to perform uplink transmission, and the resource utilization rate is improved.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, the terminal equipment determines not to cancel the uplink transmission on the third time frequency resource.

By adopting the above technical scheme, in this situation, because the contents indicated by the first bit and the second bit are different or the indicated contents conflict, the terminal device may perform uplink transmission on the third time-frequency resource according to the indication of the first bit or the second bit based on the principle that the indication transmission is preferred, so that the time-frequency resource can be utilized as much as possible for uplink transmission, and the resource utilization rate is improved.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, the terminal equipment determines not to cancel the uplink transmission on the third time frequency resource.

By adopting the above technical scheme, in this situation, because the contents indicated by the first bit and the second bit have conflict, the terminal device can also perform uplink transmission on the third time-frequency resource according to the principle of taking indication transmission as priority and according to the indication of the first bit or the second bit, so that the time-frequency resource can be utilized as much as possible to perform uplink transmission, and the resource utilization rate is improved.

In a possible design of the first aspect, the determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, the terminal equipment determines not to cancel the uplink transmission on the third time frequency resource.

In a possible design of the first aspect, the terminal device may further receive a fourth DCI from the network device, where the fourth DCI is used to schedule uplink transmission on a fifth time-frequency resource, the fifth time-frequency resource overlaps with the third time-frequency resource, and the fourth DCI includes priority indication information, and the priority indication information is used to indicate a priority of data in the uplink transmission scheduled by the fourth DCI.

The determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and the terminal equipment determines whether to cancel uplink transmission on the third time-frequency resource or not according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit and the priority indication information in the fourth DCI.

If the priority indication information indicates a high priority, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit according to the methods in the above-mentioned various possible designs, thereby ensuring the priority transmission of the data of the high-priority service. If the priority indication information indicates a low priority, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the second bit, that is, under the condition of a low priority, the indication in the DCI newly sent by the network device is used as a criterion.

In a second aspect, an embodiment of the present application provides an indication method for canceling uplink transmission, where the method is performed by a network device, and the method includes: the network equipment sends first Downlink Control Information (DCI) in a first time unit, wherein the first DCI comprises a first bit sequence, and a first bit in the first bit sequence is used for indicating whether uplink transmission of the terminal equipment on a first time-frequency resource is cancelled or not; the network device sends a second DCI in a second time unit, where the second DCI includes a second bit sequence, a second bit in the second bit sequence is used to indicate whether to cancel uplink transmission of the terminal device on a second time-frequency resource, and the second time unit is after the first time unit; when the first time-frequency resource and the second time-frequency resource have overlapped time-frequency resources and the values of the first bit and the second bit are different, the network device may determine whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-frequency resource granularity indicated by the first bit and the time-frequency resource granularity indicated by the second bit, where the third time-frequency resource is the time-frequency resource in which the first time-frequency resource and the second time-frequency resource are overlapped.

In this embodiment, when there is an overlap between the time-frequency resources indicated by the first bit in the first DCI and the time-frequency resources indicated by the second bit in the second DCI, and there is a conflict between cancellation indications of the first bit and the second bit on the overlapped time-frequency resources, the network device may determine whether to receive uplink data sent by the terminal device on the overlapped time-frequency resources according to time-domain resource granularities respectively indicated by the first bit and the second bit. Therefore, the uplink transmission problem when the cancellation indications of different DCIs on the overlapped time-frequency resources conflict is solved.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may include: when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time domain resource is a proper subset of the second time domain resource, the network device may determine whether to receive the uplink data from the terminal device on the third time frequency resource according to the first bit.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the first bit may include: and when the first bit indicates not to cancel the uplink transmission and the second bit indicates to cancel the uplink transmission, the network equipment receives the uplink data from the terminal equipment on a third time-frequency resource.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the first bit may include: the network device may receive an information configuration error indication from the terminal device when the first bit indicates cancellation of the uplink transmission and the second bit indicates no cancellation of the uplink transmission.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may include: when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit and the second time domain resource is a proper subset of the first time domain resource, the network device may determine whether to receive uplink data of the terminal device on the third time frequency resource according to the second bit.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the second bit may include: when the first bit indicates that the uplink transmission is canceled and the second bit indicates that the uplink transmission is not canceled, the network equipment determinesIn thatAnd receiving uplink data from the terminal equipment on a third time-frequency resource.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, the network equipment receives the uplink data from the terminal equipment on a third time frequency resource.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, the network equipment receives the uplink data from the terminal equipment on a third time frequency resource.

In a possible design of the second aspect, the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may further include: and when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, the network equipment receives the uplink data from the terminal equipment on a third time frequency resource.

The advantageous effects of the various possible designs of the second aspect described above can be referred to the corresponding description on the terminal device side and will not be repeated here.

In a possible design of the second aspect, the network device may further send, to the terminal device, a fourth DCI, where the fourth DCI is used to schedule uplink transmission on a fifth time-frequency resource, the fifth time-frequency resource overlaps with the third time-frequency resource, and the fourth DCI includes priority indication information, where the priority indication information is used to indicate a priority of data in the uplink transmission scheduled by the fourth DCI.

The determining, according to the time domain resource granularity indicated by the first bit and the time domain resource granularity indicated by the second bit, whether to receive uplink data from the terminal device on a third time-frequency resource may further include: and the network equipment determines whether to receive the uplink data from the terminal equipment on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit and the priority indication information in the fourth DCI.

If the priority indication information indicates a high priority, the network device may determine whether to receive uplink data from the terminal device in the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit according to the methods in the above-mentioned various possible designs. If the priority indication information indicates a low priority, the network device may determine whether to receive uplink data from the terminal device on the third time-frequency resource according to the second bit.

In a third aspect, an embodiment of the present application provides another indication method for canceling uplink transmission, where the method may be executed by a terminal device, and the method includes: the terminal equipment receives first DCI from network equipment in a first time unit, wherein the first DCI comprises a first bit sequence, and a first bit in the first bit sequence is used for indicating whether uplink transmission on first time-frequency resources is cancelled or not; the terminal equipment receives a second DCI from the network equipment in a second time unit, wherein the second DCI comprises a second bit sequence, a second bit in the second bit sequence is used for indicating whether uplink transmission on a second time-frequency resource is cancelled, and the second time unit is behind the first time unit; the terminal device receives a third DCI from the network device in a third time unit, where the third DCI includes a third bit sequence, a third bit in the third bit sequence is used to indicate whether to cancel uplink transmission on a fourth time-frequency resource, and the third time unit is after the second time unit; and when the first time frequency resource and the second time frequency resource have overlapped third time frequency resources and the third time frequency resource and the fourth time frequency resource have overlapped third time frequency resources, the terminal equipment reports an information configuration error indication to the network equipment.

By adopting the technical scheme, the terminal equipment can effectively identify the scene with the error in the DCI configuration, and then report the information configuration error indication to the network equipment. Therefore, the implementation complexity of the terminal equipment can be effectively reduced, and a scene that conflict exists in cancellation indications of three or more DCIs received by the terminal equipment on overlapped time frequencies is avoided.

In a fourth aspect, an embodiment of the present application provides another method for indicating cancellation of uplink transmission, where the method is performed by a network device, and the method includes: the network equipment sends first DCI to the terminal equipment in a first time unit, wherein the first DCI comprises a first bit sequence, and a first bit in the first bit sequence is used for indicating whether the terminal equipment cancels uplink transmission on a first time-frequency resource; the network device sends a second DCI to the terminal device in a second time unit, wherein the second DCI comprises a second bit sequence, a second bit in the second bit sequence is used for indicating whether the terminal device cancels uplink transmission on a second time-frequency resource, and the second time unit is behind the first time unit; the network device sends a third DCI to the terminal device in a third time unit, where the third DCI includes a third bit sequence, a third bit in the third bit sequence is used to indicate whether the terminal device cancels uplink transmission on a fourth time-frequency resource, and the third time unit is after the second time unit; the network device receives an information configuration error indication from the terminal device.

The advantageous effects of the fourth aspect can be referred to the description of the terminal device side in the third aspect, and will not be repeated here.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, where the apparatus has a function of implementing a terminal device in any one of the possible designs of the first aspect or the first aspect, or has a function of implementing a terminal device in any one of the possible designs of the third aspect or the third aspect. The device can be a terminal device, and can also be a chip included in the terminal device.

The apparatus may also have the functionality of a network device in any of the possible designs for implementing the second aspect or the second aspect described above, or the functionality of a network device in any of the possible designs for implementing the fourth aspect or the fourth aspect described above. The device may be a network device, or may be a chip included in the network device.

The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software, which includes one or more modules or units or means (means) corresponding to the functions.

In one possible design, the apparatus structurally includes a processing module and a transceiver module, where the processing module is configured to support the apparatus to perform a function corresponding to the terminal device in any one of the above-mentioned designs of the first aspect or the first aspect, or to perform a function corresponding to the network device in any one of the above-mentioned designs of the second aspect or the second aspect, or to perform a function corresponding to the terminal device in any one of the above-mentioned designs of the third aspect or the third aspect, or to perform a function corresponding to the network device in any one of the above-mentioned designs of the fourth aspect or the fourth aspect. The transceiver module is configured to support communication between the apparatus and other communication devices, for example, when the apparatus is a terminal device, the first DCI and the second DCI may be received from a network device. The communication device may also include a memory module, coupled to the processing module, that retains the necessary program instructions and data for the device. As an example, the processing module may be a processor, the transceiver module may be a transceiver, the storage module may be a memory, and the memory may be integrated with the processor or disposed separately from the processor, which is not limited in this application.

In another possible design, the apparatus may be configured to include a processor and may also include a memory. The processor is coupled to the memory and is operable to execute computer program instructions stored in the memory to cause the apparatus to perform the method of the first aspect or any of the possible designs of the first aspect, or the second aspect or any of the possible designs of the second aspect, or the third aspect, or any of the possible designs of the fourth aspect. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface. When the apparatus is a network device or a terminal device, the communication interface may be a transceiver or an input/output interface; when the apparatus is a chip included in a network device or a terminal device, the communication interface may be an input/output interface of the chip. Alternatively, the transceiver may be a transmit-receive circuit and the input/output interface may be an input/output circuit.

In a sixth aspect, an embodiment of the present application provides a chip system, including: a processor coupled to a memory for storing a program or instructions which, when executed by the processor, cause the system-on-chip to implement the method in the first aspect or any one of the possible designs of the first aspect, or the second aspect, or the third aspect, or any one of the possible designs of the fourth aspect, or the fourth aspect.

Optionally, the system-on-chip further comprises an interface circuit for interacting code instructions to the processor.

Optionally, the number of processors in the chip system may be one or more, and the processors may be implemented by hardware or software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

Optionally, the memory in the system-on-chip may also be one or more. The memory may be integrated with the processor or may be separate from the processor, which is not limited in this application. For example, the memory may be a non-transitory processor, such as a read only memory ROM, which may be integrated with the processor on the same chip or separately disposed on different chips, and the type of the memory and the arrangement of the memory and the processor are not particularly limited in this application.

In a seventh aspect, embodiments of the present application provide a computer-readable storage medium, on which a computer program or instructions are stored, which, when executed, cause a computer to perform the method in the first aspect or any one of the possible designs of the first aspect, or the second aspect, or any one of the possible designs of the third aspect or the third aspect, or the fourth aspect, or any one of the possible designs of the fourth aspect.

In an eighth aspect, the present embodiments provide a computer program product, which, when read and executed by a computer, causes the computer to perform the method in the first aspect or any one of the possible designs of the first aspect, or the second aspect, or the third aspect, or any one of the possible designs of the fourth aspect, or the fourth aspect.

In a ninth aspect, an embodiment of the present application provides a communication system, which includes the network device and at least one terminal device described in the above aspects.

Drawings

Fig. 1 is a schematic network architecture of a communication system according to an embodiment of the present application;

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

fig. 3 is a schematic diagram of a corresponding relationship between a first bit in a first bit sequence and a first time-frequency resource according to an embodiment of the present application;

fig. 4 is a schematic diagram of a third time-frequency resource in the embodiment of the present application;

fig. 5 is a schematic diagram of a first specific implementation manner provided by an embodiment of the present application;

fig. 6a and fig. 6b are schematic diagrams of a second specific implementation manner provided by an embodiment of the present application;

fig. 7a and 7b are schematic diagrams of a third specific implementation manner provided by an embodiment of the present application;

fig. 8a and 8b are schematic diagrams of a fourth specific implementation, a fifth specific implementation and a sixth specific implementation provided by an embodiment of the present application;

fig. 9a and 9b are schematic diagrams of a seventh implementation manner provided by the embodiment of the present application;

10a and 10b are schematic diagrams of eighth and ninth specific implementations provided by an embodiment of the present application;

fig. 11 is a flowchart illustrating another method for indicating cancellation of uplink transmission according to an embodiment of the present application;

fig. 12 is a schematic diagram of overlapping time-frequency resources in another indication method for canceling uplink transmission according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 14 is another schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 16 is another schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The technical solution of the embodiment of the present application may be applied to various communication systems, for example, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a fifth generation (5th generation, 5G) mobile communication system or a New Radio (NR) system, or may be applied to a future communication system or other similar communication systems.

Referring to fig. 1, a schematic structural diagram of a communication system provided in an embodiment of the present application is shown, where the communication system includes a network device and at least one terminal device (e.g., terminals 1 to 6 shown in fig. 1). The network device may communicate with at least one terminal device, such as terminal device 1, via an Uplink (UL) and a Downlink (DL).

The network device in fig. 1 may be an access network device, such as a base station. The access network device corresponds to different devices in different systems, for example, may correspond to an eNB in a fourth generation (4G) mobile communication system, and corresponds to an access network device in 5G, for example, a gNB in a 5G system. Of course, the technical solution provided in the embodiment of the present application may also be applied to a future mobile communication system, and therefore, the network device in fig. 1 may also correspond to an access network device in the future mobile communication system.

It should be understood that a plurality of network devices may also exist in the communication system, and one network device may provide services for a plurality of terminal devices. The network device in fig. 1 and each of a part of terminal devices or all of the terminal devices in at least one terminal device may implement the technical solution provided by the embodiment of the present application. In addition, the various terminal devices shown in fig. 1 are only some examples of terminal devices, and it should be understood that the terminal devices in the embodiments of the present application are not limited thereto.

Some terms in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

1) The terminal equipment has a wireless transceiving function, can be deployed on land and comprises an indoor or outdoor, handheld, wearable or vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); the terminal devices may be mobile phones, tablet computers, computers with wireless transceiving functions, mobile internet devices, wearable devices, virtual reality terminal devices, augmented reality terminal devices, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grid, wireless terminals in transportation security, wireless terminals in smart city, wireless terminals in smart home, and the like The device form and name are not limited.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The terminal device in the embodiment of the present application may also be an on-board module, an on-board component, an on-board chip, or an on-board unit that is built in the vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in on-board module, on-board component, on-board chip, or on-board unit.

2) A network device, also called an access network device, is a device in a network for accessing a terminal device to a wireless network. The network device may be a node in a radio access network, which may also be referred to as a base station, which may also be referred to as a RAN node (or device). The network device may be an evolved NodeB (eNodeB) in an LTE system or an evolved LTE system (LTE-Advanced, LTE-a), or may also be a next generation base station (next generation node B, gnnodeb) in a 5G NR system, or may also be a Transmission Reception Point (TRP), a baseband unit (BBU), a WiFi Access Point (AP), or the like, or may also be a Central Unit (CU) and a distributed unit (distributed unit, DU), which is not limited in the embodiment of the present application. In a scenario of separate deployment of an access network device including a CU and a DU, the CU supports Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Service Data Adaptation Protocol (SDAP), and other protocols; the DU mainly supports a Radio Link Control (RLC) layer protocol, a Medium Access Control (MAC) layer protocol, and a physical layer protocol.

3) The network device may transmit the DCI to the terminal device through a downlink control channel (e.g., a Physical Downlink Control Channel (PDCCH)). One PDCCH may carry DCI in a format scrambled by a Radio Network Temporary Identifier (RNTI), where information carried by the DCI may be different according to a DCI format (format) and/or a configuration of higher layer signaling (e.g., RRC signaling). The DCI may indicate cell-level information, such as control information indicating that a terminal device scrambles using a system message radio network temporary identifier (SI-RNTI), paging RNTI (P-RNTI), or random access RNTI (radom access RNTI RA-RNTI). The DCI may also indicate terminal device-level information, such as control information indicating cell RNTI (cell RNTI, C-RNTI), configuration scheduling RNTI (CS-RNTI), or semi-persistent channel state information RNTI (SP-CSI-RNTI) scrambling used by the terminal device.

4) It should be noted that the terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "at least one" is to be understood as meaning one or more, for example one, two or more. For example, the inclusion of at least one means that one, two or more are included, and does not limit which is included. For example, at least one of A, B and C is included, then inclusion can be A, B, C, A and B, A and C, B and C, or A and B and C. Similarly, the understanding of the description of "at least one" and the like is similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not define the order, sequence, priority, or importance of the plurality of objects, and the descriptions of "first", "second", etc., do not define that the objects are necessarily different.

Example one

Please refer to fig. 2, which is a flowchart illustrating an indicating method for canceling uplink transmission according to an embodiment of the present application, where the method specifically includes:

s201, a network device sends a first DCI to a terminal device in a first time unit, where the first DCI includes a first bit sequence, and a first bit in the first bit sequence is used to indicate whether to cancel uplink transmission of the terminal device on a first time-frequency resource.

The first DCI is DCI of format 2_4, and may also be referred to as a first cancellation indication (cancellation indication) or first uplink cancellation control information.

In one possible implementation, the first DCI may be DCI for one terminal device group. One or more terminal devices may be included in the group of terminal devices. Each terminal device in the terminal device group may correspond to one indication region in the first DCI, and is configured to carry cancellation indication information sent to the terminal device. Or it may also be understood that the first DCI includes one or more information blocks, each terminal device in the terminal device group corresponds to one information block in the first DCI, and each information block includes cancellation indication information of the corresponding terminal device.

It should be noted that, in the embodiment of the present application, the terminal device mentioned in S201 and the following description refers to one terminal device in the terminal device group, and the description thereof will not be repeated below.

The first bit sequence refers to cancellation indication information corresponding to the terminal device in the first DCI, that is, content indicated by the terminal device in a corresponding information block of the first DCI. Specifically, the first bit sequence may be a sequence including N bits, where each bit in the bit sequence corresponds to a block of time-frequency resources, and is used to indicate whether to cancel uplink transmission of the terminal device on the time-frequency resources. Whether to cancel uplink transmission of the terminal device on the time frequency resource may also be understood as whether to allow the terminal device to perform uplink transmission on the time frequency resource, or whether the terminal device may perform uplink transmission on the time frequency resource.

For convenience of description, the time-frequency resource indicated by the first bit is referred to as a first time-frequency resource in the embodiment of the present application. In a possible design, when the value of the first bit is 1, it may indicate that the uplink transmission of the terminal device on the first time-frequency resource is cancelled, that is, the terminal device may not perform uplink transmission on the first time-frequency resource, and if the network device schedules the uplink transmission for the terminal device on the first time-frequency resource, the terminal device needs to cancel the uplink transmission; when the value of the first bit is 0, it may be indicated that uplink transmission of the terminal device on the first time-frequency resource is not cancelled, that is, the terminal device may perform uplink transmission on the first time-frequency resource.

In this embodiment, the network device may configure, through a higher layer signaling parameter (e.g., CI-payload size), the number N of bits included in a bit sequence in the DCI for the terminal device, where a value of N may be one value in a set {1,2,4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 56, 112}, and a unit is a bit.

The network device may also configure the terminal device with a time-frequency resource region indicated by the DCI via a higher layer signaling parameter (e.g., timefrequency region). Specifically, the network device may configure the number B of Physical Resource Blocks (PRBs) through a frequency region format ci in the timefrequency region parameter_CIConfiguring the number T of Orthogonal Frequency Division Multiplexing (OFDM) symbols through timeDuration for CI in the timeFrequency region parameter_CI. If the monitoring period of the DCI is greater than one slot (slot), or the monitoring period of the DCI is equal to 1 slot and there is only one monitoring opportunity in 1 slot, there is at most one monitoring opportunity of the DCI in each slot, in this case, T_CIThe indicated time region may be equal to a listening period of the DCI. If the monitoring period of the DCI is equal to one slot (slot) and there are more than 1 monitoring opportunity in 1 slot, the monitoring opportunity of the DCI in one slot may be greater than 1, in which case, T_CIMay be a value in the set 2,4,7,14 in symbols.

With the above configuration, the DCI can indicate a time-frequency resource region for the terminal device. For example, the time-frequency resource region indicated by the first DCI includes, in the time domain, T after the terminal device further passes through the DCI validation time after receiving the first DCI_CIOne OFDM symbol including B in frequency domain_CIA PRB. Wherein, the effective time of the DCI can be represented as T_proc，2The T is_proc，2Is related to the Physical Uplink Shared Channel (PUSCH) processing capability 2.

Further, the network device may also configure the T through timegranuality for ci in the timefrequency region parameter_CINumber of groups G into which one OFDM symbol is divided_CI. The G is_CIMay be one value of the

set

1,2,4,7,14, 28. Corresponding, B_CINumber of PRB divided groups N_BIAccording to the number N of bits contained in the bit sequence in DCI and the time domainT of_CINumber of groups G into which one OFDM symbol is divided_CIIs determined, and, N_BI＝N/G_CI。

Thus, according to the above G_CIAnd N_BIThe time-frequency resource region indicated by the DCI may be divided into the forms as shown in fig. 3. Each block in fig. 3 may represent a block of time-frequency resources and corresponds to one bit in a bit sequence in DCI. After receiving the first DCI, the terminal device may map each bit in the first bit sequence in the first DCI to a block of time-frequency resources, into which the time-frequency resource region indicated by the first DCI is divided, one by one according to a specific order, so as to obtain a correspondence between the first bit in the first bit sequence and the first time-frequency resource.

S202, the terminal device receives, in a first time unit, a first DCI from the network device, where the first DCI includes a first bit sequence, and a first bit in the first bit sequence is used to indicate whether to cancel uplink transmission on a first time-frequency resource.

S203, the network device sends a second DCI to the terminal device in a second time unit, where the second DCI includes a second bit sequence, and a second bit in the second bit sequence is used to indicate whether to cancel uplink transmission of the terminal device on a second time-frequency resource.

The second DCI is also DCI of one format 2_4, and may also be referred to as a second cancellation indication or second uplink cancellation control information.

The second bit sequence refers to cancellation indication information corresponding to the terminal device in the second DCI, that is, content indicated by the terminal device in a corresponding information block of the second DCI. The second bit refers to a bit in the second bit sequence, and the second bit corresponds to a second time-frequency resource. The second bit sequence, the second bit and the relation with the second time-frequency resource may refer to the description of the first bit sequence, the first bit and the first time-frequency resource, which is not repeated here.

It should be noted that, in this embodiment of the application, the second time unit is after the first time unit, that is, the second DCI is another DCI sent by the network device after the first DCI is sent, or the first DCI and the second DCI are two DCIs sent by the network device to the terminal device successively. The first time unit and the second time unit may each include one or more OFDM symbols, which is not limited in this application.

In a possible implementation manner, the first DCI and the second DCI may be two adjacent DCIs that are sent by the network device to the terminal device in sequence, and in this case, a time interval between the first time unit and the second time unit is equal to a monitoring period of one DCI. In another possible implementation manner, the first DCI and the second DCI may also be two non-adjacent DCIs that are sent by the network device to the terminal device in advance, in which case, a time interval between the first time unit and the second time unit may be equal to a listening period of the multiple DCIs.

And S204, the terminal equipment receives second DCI from the network equipment in a second time unit, wherein the second DCI comprises a second bit, and the second bit is used for indicating whether uplink transmission on a second time-frequency resource is cancelled.

S205, when the first time-frequency resource and the second time-frequency resource have overlapped time-frequency resources and the values of the first bit and the second bit are different, the terminal device determines whether uplink transmission on a third time-frequency resource is cancelled according to the time-frequency resource granularity indicated by the first bit and the time-frequency resource granularity indicated by the second bit, wherein the third time-frequency resource is the time-frequency resource overlapped by the first time-frequency resource and the second time-frequency resource.

The first bit and the second bit have different values, which means that the contents indicated by the first bit and the second bit are different. For example, if the first bit is set to 1 and the second bit is set to 0, the first bit may indicate that the terminal device cancels uplink transmission on the first time-frequency resource, and the second bit indicates that the terminal device does not cancel uplink transmission on the second time-frequency resource. For another example, if the value of the first bit is 0 and the value of the second bit is 1, the first bit may indicate that the terminal device does not cancel uplink transmission on the first time-frequency resource, and the second bit indicates that the terminal device cancels uplink transmission on the second time-frequency resource. Because the first time-frequency resource and the second time-frequency resource are overlapped, the values of the first bit and the second bit are different, which may cause the situation that the cancel indication of the first bit and the second bit on the overlapped third time-frequency resource is conflicted.

The time domain resource granularity indicated by the first bit refers to the number of OFDM symbols included in the first time-frequency resource in the time domain, and similarly, the time domain resource granularity indicated by the second bit refers to the number of OFDM symbols included in the second time-frequency resource in the time domain.

Fig. 4 is a schematic diagram of a third time-frequency resource in the embodiment of the present application, where the first time-frequency resource, the second time-frequency resource, and the third time-frequency resource are only shown from the dimension of the time domain. When the DCI listening period is equal to one time slot, the time domain length T indicated by the DCI_CIThe value of (a) is a certain fixed value, and time-frequency resources indicated by two pieces of DCI (e.g., a first DCI and a second DCI) sent by a network device in sequence overlap with each other. The cross-hatched portion shown in fig. 4 refers to a portion of the time-frequency resource region indicated by the first DCI and the second DCI overlapping in the time domain, and the third time-frequency resource may include a portion or all of the time-frequency resources shown in the cross-hatched portion in fig. 4. In fig. 4, X represents the effective time of DCI, i.e. the time interval from the terminal device receiving DCI to the time-frequency resource indicated by DCI, or may also be understood as the time interval from the end symbol of DCI to the start symbol of time-frequency resource indicated by DCI.

In the embodiment of the application, the terminal device cancels uplink transmission on the time-frequency resource, and can also be understood as that the terminal device does not send uplink data on the time-frequency resource; the terminal device does not cancel the uplink transmission on the time frequency resource, and can also be understood as the terminal device sending the uplink data on the time frequency resource.

When the time-frequency resources indicated by two DCIs are overlapped and the corresponding indication information is different, for whether to cancel uplink transmission on the overlapped resources, a feasible method is to determine whether to cancel uplink transmission on the overlapped resources according to the indication of the next or latest DCI. If the configured DCI has a large listening period, it is reasonable to use the latest decision of the network side as the criterion. However, when the DCI listening period is equal to 1 slot and the listening occasions in 1 slot are greater than 1, the interval between the listening occasions of two DCIs is at the symbol level and the number of symbols is small, so that it is unreliable based on the latest DCI.

In view of this, in this embodiment of the present application, the determining, by the terminal device, whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit may include the following specific implementation manners:

in a first specific implementation manner, when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit, and the first time-frequency resource and the second time-frequency resource are completely overlapped, the terminal device may determine whether to perform uplink transmission on the third time-frequency resource according to the indication of the second bit. The specific implementation manner means that when the above situation occurs, the terminal device may make a determination according to an indication of a subsequent DCI in two DCIs where the cancellation indication conflicts, that is, the last indication of the network device is used as a criterion.

It should be noted that, in this specific implementation, that the first time-frequency resource and the second time-frequency resource are completely overlapped may mean that the first time-frequency resource and the second time-frequency resource are completely overlapped in both time domain and frequency domain.

When discussing the position relationship between the first time-frequency resource and the second time-frequency resource, the present application mainly focuses on the position relationship in the time domain, and describes, in the frequency domain, that the first time-frequency resource and the second time-frequency resource are completely the same in the frequency domain as an example. However, the present application does not exclude a scenario where the first time-frequency resource and the second time-frequency resource are partially overlapped in the frequency domain.

For example, as shown in fig. 5, the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit, which are 3 OFDM symbols, and the first time frequency resource and the second time frequency resource are completely overlapped in the time domain. In this case, the terminal device may determine whether to perform uplink transmission on the overlapped third time-frequency resource (i.e. the overlapped 3 OFDM symbols in fig. 5) according to the indication of the second bit.

In a second specific implementation manner, when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit and the first time-frequency resource and the second time-frequency resource are partially overlapped, the terminal device may determine not to cancel uplink transmission on the third time-frequency resource, and send uplink data to the network device on the third time-frequency resource. The specific implementation manner means that, when the above situation occurs, it may be considered that the overlapped third time-frequency resource may be used for sending uplink data, and at this time, according to a principle that the indication sending is a priority, the terminal device may determine not to cancel uplink transmission on the third time-frequency resource according to the indication that the uplink transmission is not canceled by the first bit or the second bit, so as to fully utilize the network resource and improve the resource utilization rate.

It should be noted that, in this specific implementation manner, the partial overlapping of the first time-frequency resource and the second time-frequency resource may refer to that the first time-frequency resource and the second time-frequency resource are partially overlapped in a time domain.

For example, as shown in fig. 6a, the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit, and is all 3 OFDM symbols, and the value of the first bit is 1, which indicates the terminal device to cancel uplink transmission on the third time frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel uplink transmission on the third time frequency resource. The first time frequency resource and the second time frequency resource are partially overlapped in the time domain, and the third time frequency resource refers to the middle two OFDM symbols of the first time frequency resource and the second time frequency resource which are overlapped in the time domain, i.e. the second OFDM symbol and the third OFDM symbol shown in fig. 6 a. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on two OFDM symbols overlapped in the middle) according to the indication of the second bit.

For another example, as shown in fig. 6b, the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit, and is 3 OFDM symbols. However, the value of the first bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource. The first time frequency resource and the second time frequency resource are partially overlapped in the time domain, and the third time frequency resource refers to the middle two OFDM symbols of the first time frequency resource and the second time frequency resource which are overlapped in the time domain, and the second OFDM symbol and the third OFDM symbol shown in fig. 6 b. Thus, in this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on the two OFDM symbols overlapped in the middle) according to the indication of the first bit.

In a third specific implementation manner, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time-frequency resource is partially overlapped with the second time-frequency resource, the terminal device may determine not to cancel uplink transmission on the third time-frequency resource, and send uplink data to the network device on the third time-frequency resource. The specific implementation manner means that when the above situation occurs, it can also be considered that the overlapped third time-frequency resource can be used for sending uplink data, and at this time, according to the principle that sending of the indication is priority, the terminal device can determine not to cancel uplink transmission on the third time-frequency resource according to the indication that the uplink transmission is not canceled by the first bit or the second bit, so as to fully utilize the network resource and improve the resource utilization rate.

For example, as shown in fig. 7a, the time domain resource granularity indicated by the first bit includes 2 OFDM symbols, the time domain resource granularity indicated by the second bit includes 3 OFDM symbols, and the value of the first bit is 1, which indicates the terminal device to cancel uplink transmission on the third time-frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel uplink transmission on the third time-frequency resource. The first time frequency resource and the second time frequency resource are partially overlapped in the time domain, and the third time frequency resource refers to an OFDM symbol in which the first time frequency resource and the second time frequency resource are overlapped in the time domain, that is, a second OFDM symbol shown in fig. 7 a. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on the second OFDM symbol that overlaps) according to the indication of the second bit.

For another example, as shown in fig. 7b, the time domain resource granularity indicated by the first bit includes 2 OFDM symbols, and the time domain resource granularity indicated by the second bit includes 3 OFDM symbols. However, the value of the first bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource. The first time frequency resource and the second time frequency resource are partially overlapped in the time domain, and the third time frequency resource refers to an OFDM symbol in which the first time frequency resource and the second time frequency resource are overlapped in the time domain, that is, a second OFDM symbol shown in fig. 7 b. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on the second OFDM symbol that overlaps) according to the indication of the first bit.

In a fourth specific implementation manner, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time-frequency resource is a proper subset of the second time-frequency resource, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the indication of the first bit. The specific implementation manner means that, when the above situation occurs, the indication of the first bit with the smaller granularity of the indicated time domain resource may be considered to be more accurate, and at this time, according to the principle that the small granularity indication is a priority, the terminal device may determine whether to cancel uplink transmission on the third time frequency resource according to the indication of the first bit.

It should be noted that, in this specific implementation manner, the case that the first time-frequency resource is a proper subset of the second time-frequency resource means that the second time-frequency resource includes the first time-frequency resource, and the second time-frequency resource is not equal to the first time-frequency resource. The first time-frequency resource is a proper subset of the second time-frequency resource, which may further specifically mean that the first time-frequency resource is a proper subset of the second time-frequency resource in the time domain, that is, one or more OFDM symbols included in the first time-frequency resource in the time domain are included in a plurality of OFDM symbols included in the second time-frequency resource in the time domain.

For example, as shown in fig. 8a, the time domain resource granularity indicated by the first bit includes 1 OFDM symbol, the time domain resource granularity indicated by the second bit includes 3 OFDM symbols, and the value of the first bit is 0, which indicates that the terminal device does not cancel uplink transmission on the third time-frequency resource, and the value of the second bit is 1, which indicates that the terminal device cancels uplink transmission on the third time-frequency resource. The first time-frequency resource is a proper subset of the second time-frequency resource, that is, 1 OFDM symbol included in the first time-frequency resource is included by 3 OFDM symbols included in the second time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 8 a. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on the second OFDM symbol or the third OFDM symbol that overlaps) according to the indication of the first bit.

For another example, as shown in fig. 8b, the time domain resource granularity indicated by the first bit includes 1 OFDM symbol, and the time domain resource granularity indicated by the second bit includes 3 OFDM symbols. However, the value of the first bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource. The first time-frequency resource is a proper subset of the second time-frequency resource, that is, 1 OFDM symbol included in the first time-frequency resource is included by 3 OFDM symbols included in the second time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 8 b. In this case, the terminal device may determine to cancel uplink transmission on the third time-frequency resource (i.e., on the second OFDM symbol or the third OFDM symbol that overlaps) according to the indication of the first bit.

In a fifth specific implementation manner, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, and the first time-frequency resource is a proper subset of the second time-frequency resource, the first bit indicates that uplink transmission is not cancelled, and the second bit indicates that uplink transmission is cancelled, the terminal device may determine that uplink transmission on the third time-frequency resource is not cancelled according to the indication of the first bit, and send uplink data to the network device on the third time-frequency resource. The specific implementation manner means that when the above situation occurs, the terminal device may also determine not to cancel uplink transmission on the third time-frequency resource according to the principle that the indication transmission is prioritized, so as to fully utilize the network resource and improve the resource utilization rate.

It should be noted that in this specific implementation manner, that the first time-frequency resource is a proper subset of the second time-frequency resource also means that the first time-frequency resource is a proper subset of the second time-frequency resource in the time domain, that is, the one or more OFDM symbols included in the first time-frequency resource in the time domain are included in the plurality of OFDM symbols included in the second time-frequency resource in the time domain.

For example, as shown in fig. 8a, the time domain resource granularity indicated by the first bit includes 1 OFDM symbol, the time domain resource granularity indicated by the second bit includes 3 OFDM symbols, and the value of the first bit is 0, which indicates that the terminal device does not cancel uplink transmission on the third time-frequency resource, and the value of the second bit is 1, which indicates that the terminal device cancels uplink transmission on the third time-frequency resource. The first time-frequency resource is a proper subset of the second time-frequency resource, that is, 1 OFDM symbol included in the first time-frequency resource is included by 3 OFDM symbols included in the second time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 8 a. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e. on the second OFDM symbol or the third OFDM symbol that overlaps) directly according to the indication of the first bit, because the indication of the first bit may be transmitted.

In a sixth specific implementation manner, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, and the first time-frequency resource is a proper subset of the second time-frequency resource, the first bit indicates that the uplink transmission is cancelled, and the second bit indicates that the uplink transmission is not cancelled, the terminal device may report an indication of an information configuration error to the network device. The specific implementation manner means that the system may specify in advance that such configuration is not supported, or the terminal device does not desire to handle the above situation, and it is considered that there is an error in the current configuration, and therefore an indication of an information configuration error is reported to the network device.

For example, as shown in fig. 8b, the time domain resource granularity indicated by the first bit includes 1 OFDM symbol, and the time domain resource granularity indicated by the second bit includes 3 OFDM symbols. However, the value of the first bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource. The first time-frequency resource is a proper subset of the second time-frequency resource, that is, 1 OFDM symbol included in the first time-frequency resource is included by 3 OFDM symbols included in the second time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 8 b. When the terminal device receives the first DCI and the second DCI and determines that the indication of the first bit and the second bit occurs, the terminal device regards that the information belongs to the unsupported configuration type, and further, the terminal device may report an indication of an information configuration error to the network device.

In a seventh specific implementation manner, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit and the first time-frequency resource is partially overlapped with the second time-frequency resource, the terminal device may determine not to cancel uplink transmission on the third time-frequency resource, and send uplink data to the network device on the third time-frequency resource. The specific implementation manner means that when the above situation occurs, it can also be considered that the overlapped third time-frequency resource can be used for sending uplink data, and at this time, according to the principle that sending of the indication is priority, the terminal device can determine not to cancel uplink transmission on the third time-frequency resource according to the indication that the uplink transmission is not canceled by the first bit or the second bit, so as to fully utilize the network resource and improve the resource utilization rate.

For example, as shown in fig. 9a, the time domain resource granularity indicated by the first bit includes 3 OFDM symbols, the time domain resource granularity indicated by the second bit includes 1 OFDM symbol, and the value of the first bit is 1, which indicates the terminal device to cancel uplink transmission on the third time-frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel uplink transmission on the third time-frequency resource. The first time-frequency resource and the second time-frequency resource are partially overlapped in the time domain, and the third time-frequency resource refers to an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in the time domain, that is, a third OFDM symbol shown in fig. 9 a. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on the third OFDM symbol that overlaps) according to the indication of the second bit, since the indication of the second bit may be transmitted.

For another example, as shown in fig. 9b, the time domain resource granularity indicated by the first bit includes 3 OFDM symbols, and the time domain resource granularity indicated by the second bit includes 1 OFDM symbol. However, the value of the first bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource. The first time-frequency resource and the second time-frequency resource are partially overlapped in the time domain, and the third time-frequency resource refers to an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in the time domain, that is, a third OFDM symbol shown in fig. 9 a. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e., on the third OFDM symbol that overlaps) according to the indication of the first bit, because the indication of the first bit may be transmitted.

In an eighth specific implementation manner, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit and the second time-frequency resource is a proper subset of the first time-frequency resource, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the indication of the second bit. The specific implementation manner means that, when the above situation occurs, the indicated second bit with the smaller granularity of the time domain resource may be considered to be more accurate, and at this time, according to the principle that the small granularity indication is a priority, the terminal device may determine whether to cancel uplink transmission on the third time frequency resource according to the indication of the second bit. Or, the terminal device determines, according to a principle that the latest indication is a priority, according to an indication of a subsequent DCI in the two DCIs in which the cancellation indication conflicts, that is, an indication of the second bit, that is, based on the indication of the network device last time, determines whether to cancel uplink transmission on the third time-frequency resource.

It should be noted that, in this specific implementation manner, the fact that the second time-frequency resource is a proper subset of the first time-frequency resource also means that the second time-frequency resource is a proper subset of the first time-frequency resource in the time domain, that is, one or more OFDM symbols included in the second time-frequency resource in the time domain are included in a plurality of OFDM symbols included in the first time-frequency resource in the time domain.

For example, as shown in fig. 10a, the time domain resource granularity indicated by the first bit includes 3 OFDM symbols, the time domain resource granularity indicated by the second bit includes 1 OFDM symbol, and the value of the first bit is 0, which indicates that the terminal device does not cancel uplink transmission on the third time-frequency resource, and the value of the second bit is 1, which indicates that the terminal device cancels uplink transmission on the third time-frequency resource. The second time-frequency resource is a proper subset of the first time-frequency resource, that is, 1 OFDM symbol included in the second time-frequency resource is included by 3 OFDM symbols included in the first time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 10 a. In this case, the terminal device may determine to cancel uplink transmission on the third time-frequency resource (i.e. on the second OFDM symbol or the third OFDM symbol which overlaps) directly according to the indication of the second bit, because the granularity of the indication of the second bit is smaller or the indication of the second bit is the latest indication of the network device.

For another example, as shown in fig. 10b, the time domain resource granularity indicated by the first bit includes 3 OFDM symbols, and the time domain resource granularity indicated by the second bit includes 1 OFDM symbol. However, the value of the first bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource. The second time-frequency resource is a proper subset of the first time-frequency resource, that is, 1 OFDM symbol included in the second time-frequency resource is included by 3 OFDM symbols included in the first time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 10 b. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e. on the second OFDM symbol or the third OFDM symbol which overlaps) directly according to the indication of the second bit, because the granularity of the indication of the second bit is smaller or the indication of the second bit is the latest indication of the network device.

In a ninth specific implementation manner, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit, the second time-frequency resource is a proper subset of the first time-frequency resource, the first bit indicates that uplink transmission is cancelled, and the second bit indicates that uplink transmission is not cancelled, the terminal device may determine that uplink transmission on the third time-frequency resource is not cancelled, and send uplink data to the network device on the third time-frequency resource. The specific implementation manner means that when the above situation occurs, the terminal device may also determine not to cancel uplink transmission on the third time-frequency resource according to the principle that the indication transmission is prioritized, so as to fully utilize the network resource and improve the resource utilization rate.

For example, as shown in fig. 10b, the time domain resource granularity indicated by the first bit includes 3 OFDM symbols, and the time domain resource granularity indicated by the second bit includes 1 OFDM symbol. However, the value of the first bit is 1, which indicates the terminal device to cancel the uplink transmission on the third time-frequency resource, and the value of the second bit is 0, which indicates the terminal device not to cancel the uplink transmission on the third time-frequency resource. The second time-frequency resource is a proper subset of the first time-frequency resource, that is, 1 OFDM symbol included in the second time-frequency resource is included by 3 OFDM symbols included in the first time-frequency resource, and the third time-frequency resource is an OFDM symbol in which the first time-frequency resource and the second time-frequency resource are overlapped in a time domain, that is, the second OFDM symbol or the third OFDM symbol shown in fig. 10 b. In this case, the terminal device may determine to perform uplink transmission on the third time-frequency resource (i.e. on the second OFDM symbol or the third OFDM symbol which overlaps) according to the indication of the second bit, since the second bit indicates transmission.

S206, when the first time-frequency resource and the second time-frequency resource have overlapped time-frequency resources and the values of the first bit and the second bit are different, the network equipment determines whether to receive the uplink data from the terminal equipment on the third time-frequency resource according to the time-frequency resource granularity indicated by the first bit and the time-frequency resource granularity indicated by the second bit.

In the embodiment of the application, the network equipment performs processing in a mode corresponding to the terminal equipment.

Specifically, corresponding to the first specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit, and the first time-frequency resource and the second time-frequency resource are completely overlapped, the terminal device may determine whether to perform uplink transmission on the third time-frequency resource according to the indication of the second bit, and correspondingly, the network device may also determine whether to receive uplink data sent by the terminal device on the third time-frequency resource according to the indication of the second bit.

Corresponding to the second specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit, and the first time-frequency resource is partially overlapped with the second time-frequency resource, the terminal device determines not to cancel uplink transmission on the third time-frequency resource, and accordingly, the network device may receive uplink data sent by the terminal device on the third time-frequency resource. The specific implementation mode is based on the priority of indication sending, so that the time-frequency resources can be utilized as much as possible for uplink transmission, and the resource utilization rate is improved.

Corresponding to the third specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time-frequency resource is partially overlapped with the second time-frequency resource, the terminal device determines not to cancel uplink transmission on the third time-frequency resource, and accordingly, the network device may receive uplink data sent by the terminal device on the third time-frequency resource. The specific implementation mode is based on the priority of indication sending, so that the time-frequency resources can be utilized as much as possible for uplink transmission, and the resource utilization rate is improved.

Corresponding to the fourth specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, and the first time-frequency resource is a proper subset of the second time-frequency resource, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the indication of the first bit, and correspondingly, the network device may also determine whether to receive uplink data sent by the terminal device on the third time-frequency resource according to the indication of the first bit. The specific implementation mode is based on the priority of the small granularity indication, so that the accuracy of uplink scheduling can be effectively improved.

Corresponding to the fifth specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, and the first time-frequency resource is a proper subset of the second time-frequency resource, the first bit indicates not to cancel uplink transmission, and the second bit indicates to cancel uplink transmission, the terminal device may determine not to cancel uplink transmission on the third time-frequency resource according to the indication of the first bit, and correspondingly, the network device may also determine to receive uplink data sent by the terminal device on the third time-frequency resource according to the indication of the first bit. The specific implementation mode is based on the priority of indication sending, so that the time-frequency resources can be utilized as much as possible for uplink transmission, and the resource utilization rate is improved.

Corresponding to the sixth specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, the first time-frequency resource is a proper subset of the second time-frequency resource, the first bit indicates that uplink transmission is cancelled, and the second bit indicates that uplink transmission is not cancelled, the terminal device may determine, according to the indication, that the current situation is a configuration that is not supported by the system. Optionally, the terminal device may also report an indication of the information configuration error to the network device, and accordingly, the network device may receive the indication of the information configuration error from the terminal device.

Corresponding to the seventh specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit, and the first time-frequency resource is partially overlapped with the second time-frequency resource, the terminal device determines not to cancel uplink transmission on the third time-frequency resource, and accordingly, the network device may receive uplink data sent by the terminal device on the third time-frequency resource. The specific implementation mode is based on the priority of indication sending, so that the time-frequency resources can be utilized as much as possible for uplink transmission, and the resource utilization rate is improved.

Corresponding to the eighth specific implementation manner in S205, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit and the second time-frequency resource is a proper subset of the first time-frequency resource, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the indication of the second bit, and correspondingly, the network device may also determine whether to receive uplink data sent by the terminal device on the third time-frequency resource according to the indication of the second bit. The specific implementation mode is based on that the small-granularity indication is priority or the indication in the latest DCI is priority, so that the accuracy of uplink scheduling is improved.

Corresponding to the ninth implementation manner in S205, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit, and the second time-frequency resource is a proper subset of the first time-frequency resource, the first bit indicates that uplink transmission is cancelled, and the second bit indicates that uplink transmission is not cancelled, the terminal device may determine that uplink transmission on the third time-frequency resource is not cancelled, and accordingly, the network device may receive, on the third time-frequency resource, the uplink data sent by the terminal device. The specific implementation mode is based on the priority of indication sending, so that the time-frequency resources can be utilized as much as possible for uplink transmission, and the resource utilization rate is improved.

As can be seen from the above, when there is an overlap between the time-frequency resources indicated by the first bit in the first DCI and the time-frequency resources indicated by the second bit in the second DCI, and there is a conflict between cancellation indications of the first bit and the second bit on the overlapped time-frequency resources, in the embodiments of the present application, a scene may be distinguished according to the time-frequency resource granularity respectively indicated by the first bit and the second bit, and an overlapping condition of the time-frequency resources indicated by the first bit and the second bit, so as to determine whether the terminal device performs uplink transmission on the overlapped time-frequency resources, and whether the network device receives uplink data sent by the terminal device on the overlapped time-frequency resources. Therefore, the uplink transmission problem when different DCI cancellation instructions exist on overlapped time frequency resources is solved, the priority transmission of the data of the high-priority service is ensured, the accuracy of uplink scheduling is improved, and network resources are fully utilized.

Optionally, in S205, the terminal device may further determine whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit, and the priority indication information.

In this embodiment of the present application, the priority indication information may be carried in the fourth DCI, where the priority indication information is used to indicate a priority of data in uplink transmission scheduled by the fourth DCI. It is understood that the fourth DCI has a different purpose from the first DCI and the second DCI, that is, the first DCI and the second DCI are used to indicate whether to cancel uplink transmission, and the fourth DCI is used to schedule uplink transmission. Optionally, the fourth DCI is different from DCI formats used by the first DCI and the second DCI.

Specifically, the terminal device may receive fourth DCI from the network device, where the fourth DCI is used to schedule the terminal device to perform uplink transmission on a fifth time-frequency resource, and the priority indication information is used to indicate a priority of data in the uplink transmission. It should be noted that the fifth time frequency resource overlaps with the third time frequency resource, and the fifth time frequency resource overlaps with the third time frequency resource may include a complete overlap of the fifth time frequency resource with the third time frequency resource, a partial overlap of the fifth time frequency resource with the third time frequency resource, the fifth time frequency resource including the third time frequency resource, or the fifth time frequency resource being included by the third time frequency resource. It should also be noted that, in the embodiment of the present application, the order between the network device sending the fourth DCI and the network device sending the first DCI and the second DCI is not limited.

If the priority indication information indicates a high priority, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit according to the methods in the various possible specific implementation manners, so that transmission of data of the high-priority service may be effectively ensured. If the priority indication information indicates a low priority, the terminal device may determine whether to cancel uplink transmission on the third time-frequency resource according to the second bit, that is, based on an indication sent by the network device last time.

Accordingly, the network device may send a fourth DCI to the terminal device, where the fourth DCI includes the priority indication information. If the priority indication information indicates a high priority, the network device may determine whether to receive uplink data from the terminal device in the third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit according to the methods in the above-mentioned various possible designs. If the priority indication information indicates a low priority, the network device may determine whether to receive uplink data from the terminal device on the third time-frequency resource according to the second bit.

In this embodiment of the present application, the priority indication information may be represented by a priority index (priority index). For example, in one possible design, the priority index may take a value of 0 or 1, and may indicate a low priority when the priority index takes a value of 0, and may indicate a high priority when the priority index takes a value of 1. Alternatively, in another possible design, the priority index may take a value of 0 or 1, and may indicate a low priority when the priority index takes a value of 1, and may indicate a high priority when the priority index takes a value of 0.

Example two

Please refer to fig. 11, which is a flowchart illustrating another method for indicating cancellation of uplink transmission according to an embodiment of the present application, where the method specifically includes:

s1101, the network device sends a first DCI to the terminal device in a first time unit, where the first DCI includes a first bit sequence, and a first bit in the first bit sequence is used to indicate whether the terminal device cancels uplink transmission on a first time-frequency resource.

S1102, the terminal device receives a first DCI from the network device in a first time unit.

S1103, the network device sends, to the terminal device, a second DCI in a second time unit, where the second DCI includes a second bit sequence, a second bit in the second bit sequence is used to indicate whether the terminal device cancels uplink transmission on a second time-frequency resource, and the second time unit is after the first time unit.

And S1104, the terminal device receives the second DCI from the network device in the second time unit.

Here, specific embodiments of S1101 to S1104 may refer to the above description of S201 to S204 in turn, and are not repeated here.

S1105, the network device sends a third DCI to the terminal device in a third time unit, where the third DCI includes a third bit sequence, a third bit in the third bit sequence is used to indicate whether the terminal device cancels uplink transmission on a fourth time-frequency resource, and the third time unit is after the second time unit.

The detailed description about S1105 may refer to the related description about S203 above, and will not be repeated here.

S1106, the terminal device receives the third DCI from the network device in the third time unit.

The embodiment of S1106 is similar to S204, and please refer to the above description, which is not repeated here.

And S1107, when the first time-frequency resource and the second time-frequency resource have a third time-frequency resource which is overlapped, and the third time-frequency resource and the fourth time-frequency resource are overlapped, the terminal device reports an indication of information configuration error to the network device.

The relationship among the first time-frequency resource, the second time-frequency resource, the third time-frequency resource and the fourth time-frequency resource can be as shown in fig. 12. More specifically, in the scenario shown in fig. 12, the DCI listening period is one slot, and the DCI listening timing in the one slot is greater than one, and X represents the DCI effective time.

S1108, the network equipment receives the information configuration error indication from the terminal equipment.

According to the embodiment of the application, the situation that the time frequency resources indicated by three or more DCIs sent to the terminal equipment by the network equipment are overlapped is not supported. This is because, in order to solve the problem that different DCIs cancel the indication collision on the overlapped time-frequency resources, the implementation complexity of the terminal device is higher when the number of DCIs indicating the overlapped time-frequency resources is larger. Therefore, when the terminal device receives the first DCI, the second DCI, and the third DCI, and the first DCI, the second DCI, and the third DCI all indicate the overlapping time-frequency resources, the terminal device may recognize that there is a problem with the DCI configuration in the above scenario, and may report an indication of an information configuration error to the network device.

Based on the above reasons, the embodiment of the present application introduces a DCI configuration condition, and when the DCI configuration condition is satisfied, a situation that overlapping time-frequency resources are indicated does not occur in three or more consecutive DCIs sent to a terminal device by a network device, so that the number of DCIs in a scenario where an indication cancellation conflict occurs on the overlapping time-frequency resources is limited to two, and the implementation complexity of the terminal device is effectively reduced.

In one possible implementation, the DCI configuration condition may be denoted as T_CI<(2Y + 2X), wherein T_CIRefers to time and frequency resources indicated by DCIThe number of OFDM symbols included in the time domain by the source, X represents the effective time of DCI, and Y represents the time domain length corresponding to one listening opportunity. Y may be determined according to a monitoring start symbol of a search space set corresponding to one DCI and the number of OFDM symbols of a control resource set (CORESET) associated with the search space set corresponding to the DCI. For example, the terminal device monitors DCI in a search space set, where the starting position of the search space set is the first OFDM symbol of a slot, the time domain length of the associated CORESET is 2 OFDM symbols, and then the time domain length of the monitoring opportunity corresponding to the search space set is 2 OFDM symbols, and occupies the first OFDM symbol and the second OFDM symbol of the slot.

The configuration condition may cause that the time-frequency resources respectively indicated by three or more consecutive DCIs issued by the network device do not have an intersection in the time domain. The configuration condition may also be understood as that the following configuration of DCI is not supported in the system, or the terminal device does not expect to receive the following configuration: time domain range T of time frequency resource indicated by first DCI_CITime domain range T of time frequency resource indicated by the third DCI_CIWith intersection, or T_CI>(2Y+2*X)。

Referring to fig. 13, a schematic structural diagram of a communication device according to an embodiment of the present application is shown, where the communication device 1300 includes: a transceiver module 1310 and a processing module 1320. The communication device can be used for realizing the functions related to the terminal equipment in any of the above method embodiments. For example, the communication apparatus may be a terminal device, a chip included in the terminal device, or an apparatus including the terminal device, such as various types of vehicles and the like.

When the communication apparatus is used as a terminal device to execute the method embodiment shown in fig. 2, the transceiver module 1310 is configured to receive a first downlink control information DCI from a network device in a first time unit, where the first downlink control information DCI includes a first bit sequence, and a first bit in the first bit sequence is used to indicate whether to cancel uplink transmission on a first time-frequency resource; the transceiver module 1310 is further configured to receive, in a second time unit, a second DCI from the network device, where the second DCI includes a second bit sequence, a second bit in the second bit sequence is used to indicate whether to cancel uplink transmission on a second time-frequency resource, and the second time unit is after the first time unit; the processing module 1320 is configured to, when there is an overlapping time-frequency resource between the first time-frequency resource and the second time-frequency resource, and the value of the first bit is different from the value of the second bit, determine whether to cancel uplink transmission on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit, where the third time-frequency resource is the overlapping time-frequency resource between the first time-frequency resource and the second time-frequency resource.

In a possible design, the processing module 1320 is specifically configured to, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, and the first time-frequency resource is a proper subset of the second time-frequency resource, determine whether to cancel uplink transmission on the third time-frequency resource according to the first bit.

In one possible design, the processing module 1320 is further specifically configured to determine not to cancel the uplink transmission on the third time-frequency resource when the first bit indicates not to cancel the uplink transmission and the second bit indicates to cancel the uplink transmission.

In a possible design, the processing module 1320 is further specifically configured to report an indication of an information configuration error to the network device when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled.

In a possible design, the processing module 1320 is specifically configured to, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit, and the second time-frequency resource is a proper subset of the first time-frequency resource, determine whether to cancel uplink transmission on the third time-frequency resource according to the second bit.

In a possible design, the processing module 1320 is further specifically configured to determine not to cancel the uplink transmission on the third time-frequency resource when the first bit indicates to cancel the uplink transmission and the second bit indicates not to cancel the uplink transmission.

In a possible design, the processing module 1320 is specifically configured to determine not to cancel uplink transmission on the third time-frequency resource when the time-domain resource granularity indicated by the first bit is the same as the time-domain resource granularity indicated by the second bit and the first time-frequency resource and the second time-frequency resource are partially overlapped.

In a possible design, the processing module 1320 is specifically configured to determine not to cancel uplink transmission on the third time-frequency resource when the time-domain resource granularity indicated by the first bit is smaller than the time-domain resource granularity indicated by the second bit and the first time-frequency resource overlaps the second time-frequency resource.

In a possible design, the processing module 1320 is specifically configured to determine not to cancel uplink transmission on the third time-frequency resource when the time-domain resource granularity indicated by the first bit is greater than the time-domain resource granularity indicated by the second bit and the first time-frequency resource overlaps the second time-frequency resource.

In one possible design, the transceiver module 1310 is further configured to receive a fourth DCI, where the fourth DCI is used to schedule uplink transmission on a fifth time-frequency resource, the fifth time-frequency resource overlaps with the third time-frequency resource, and the fourth DCI includes priority indication information, where the priority indication information is used to indicate priority of data in the uplink transmission scheduled by the fourth DCI; the processing module 1320 is specifically configured to determine whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit, and the priority indication information in the fourth DCI.

The processing module 1320 involved in the communication apparatus may be implemented by a processor or a processor-related circuit component, and the transceiver module 1310 may be implemented by a transceiver or a transceiver-related circuit component. The operations and/or functions of the modules in the communication apparatus are respectively for implementing the corresponding flows of the method shown in fig. 2, and are not described herein again for brevity.

Please refer to fig. 14, which is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may specifically be a terminal device. For ease of understanding and illustration, in fig. 14, the terminal device is exemplified by a mobile phone. As shown in fig. 14, the terminal device includes a processor and may further include a memory, and of course, may also include a radio frequency circuit, an antenna, an input/output device, and the like. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 14. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 14, the terminal device includes a transceiving unit 1410 and a processing unit 1420. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing a receiving function in the transceiving unit 1410 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 1410 may be regarded as a transmitting unit, that is, the transceiving unit 1410 includes a receiving unit and a transmitting unit. The transceiver unit may also be sometimes referred to as a transceiver circuit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc. It should be understood that the transceiving unit 1410 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the above method embodiments, and the processing unit 1420 is configured to perform other operations on the terminal device in the above method embodiments besides the transceiving operation.

Referring to fig. 15, a schematic structural diagram of a communication device according to an embodiment of the present application is provided, where the communication device 1500 includes: a transceiver module 1510, and a processing module 1520. The communication device can be used for realizing the functions related to the network equipment in any one of the method embodiments. For example, the communication means may be a network device or a chip included in the network device.

When the communication apparatus is used as a network device to execute the method embodiment shown in fig. 2, the transceiving module 1510 is configured to send, to the terminal device, a first downlink control information DCI in a first time unit, where the first DCI includes a first bit sequence, and a first bit in the first bit sequence is used to indicate whether to cancel uplink transmission on the first time-frequency resource by the terminal device; the transceiver module 1510 is further configured to send, to the terminal device, a second DCI in a second time unit, where the second DCI includes a second bit sequence, a second bit in the second bit sequence is used to indicate whether to cancel uplink transmission of the terminal device on a second time-frequency resource, and the second time unit is after the first time unit; the processing module 1520 is configured to, when there is an overlapping time-frequency resource between the first time-frequency resource and the second time-frequency resource, and the value of the first bit is different from the value of the second bit, determine whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-frequency resource granularity indicated by the first bit and the time-frequency resource granularity indicated by the second bit, where the third time-frequency resource is the overlapping time-frequency resource between the first time-frequency resource and the second time-frequency resource.

In a possible design, the processing module 1520 is specifically configured to, when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit, and the first time domain resource is a proper subset of the second time domain resource, determine whether to receive the uplink data from the terminal device on the third time frequency resource according to the first bit.

In a possible design, the processing module 1520 is further specifically configured to receive uplink data from the terminal device on a third time-frequency resource when the first bit indicates not to cancel the uplink transmission and the second bit indicates to cancel the uplink transmission.

In one possible design, the processing module 1520 is further specifically configured to receive an indication of an information configuration error from the terminal device when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled.

In a possible design, the processing module 1520 is specifically configured to, when the time domain resource granularity indicated by the first bit is greater than the time domain resource granularity indicated by the second bit, and the second time domain resource is a proper subset of the first time domain resource, determine whether to receive the uplink data from the terminal device on the third time frequency resource according to the second bit.

In a possible design, the processing module 1520 is further specifically configured to determine to receive uplink data from the terminal device on a third time-frequency resource when the first bit indicates that uplink transmission is cancelled and the second bit indicates that uplink transmission is not cancelled.

In a possible design, the processing module 1520 is specifically configured to receive, on a third time-frequency resource, the uplink data from the terminal device when the time-domain resource granularity indicated by the first bit is the same as the time-domain resource granularity indicated by the second bit and the first time-frequency resource and the second time-frequency resource are partially overlapped.

In a possible design, the processing module 1520 is specifically configured to receive, on a third time-frequency resource, the uplink data from the terminal device when the time-domain resource granularity indicated by the first bit is smaller than the time-domain resource granularity indicated by the second bit and the first time-frequency resource is partially overlapped with the second time-frequency resource.

In a possible design, the processing module 1520 is specifically configured to receive, on a third time-frequency resource, the uplink data from the terminal device when the time-domain resource granularity indicated by the first bit is greater than the time-domain resource granularity indicated by the second bit and the first time-frequency resource and the second time-frequency resource are partially overlapped.

In a possible design, the transceiver module 1510 is further configured to send a fourth DCI, where the fourth DCI is used to schedule uplink transmission on a fifth time-frequency resource, the fifth time-frequency resource overlaps with the third time-frequency resource, and the fourth DCI includes priority indication information, where the priority indication information is used to indicate a priority of data in the uplink transmission scheduled by the fourth DCI; the processing module 1520 is specifically configured to determine whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit, and the priority indication information.

It is to be understood that the processing module 1520 involved in the communication device may be implemented by a processor or processor-related circuit components, and the transceiver module 1510 may be implemented by a transceiver or transceiver-related circuit components. The operations and/or functions of the modules in the communication apparatus are respectively for implementing the corresponding flows of the method shown in fig. 2, and are not described herein again for brevity.

Please refer to fig. 16, which is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be embodied as a network device, such as a base station, for implementing the functions related to the network device in any of the above method embodiments.

The network device includes: one or more radio frequency units, such as a Remote Radio Unit (RRU) 1601 and one or more baseband units (BBUs) (which may also be referred to as digital units, DUs) 1602. The RRU 1601 may be referred to as a transceiver unit, transceiver circuitry, or transceiver, etc., which may include at least one antenna 16011 and a radio frequency unit 16012. The RRU 1601 is mainly used for transceiving radio frequency signals and converting the radio frequency signals and baseband signals. The BBU 1602 section is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 1601 and the BBU 1602 may be physically disposed together or may be physically disposed separately, that is, a distributed base station.

The BBU 1602 is a control center of a base station, and may also be called a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, and spreading. For example, the BBU (processing unit) 1602 may be configured to control the base station to perform the operation procedure of the above method embodiment with respect to the network device.

In an example, the BBU 1602 may be formed by one or more boards, and the boards may jointly support a radio access network (e.g., an LTE network) with a single access indication, or may respectively support radio access networks (e.g., LTE networks, 5G networks, or other networks) with different access schemes. The BBU 1602 may also include a memory 16021 and a processor 16022, the memory 16021 being configured to store necessary instructions and data. The processor 16022 is configured to control the base station to perform necessary actions, such as controlling the base station to perform the transmitting operation in the above method embodiments. The memory 16021 and processor 16022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

An embodiment of the present application further provides a chip system, including: a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the system-on-chip to implement the method of any of the above method embodiments.

Optionally, the system on a chip may have one or more processors. The processor may be implemented by hardware or by software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

The system-on-chip may be, for example, a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

It will be appreciated that the steps of the above described method embodiments may be performed by logic circuits in a processor or instructions in the form of software. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

The embodiment of the present application further provides a computer-readable storage medium, where computer-readable instructions are stored in the computer-readable storage medium, and when the computer-readable instructions are read and executed by a computer, the computer is enabled to execute the method in any of the above method embodiments.

The embodiments of the present application further provide a computer program product, which when read and executed by a computer, causes the computer to execute the method in any of the above method embodiments.

The embodiment of the application also provides a communication system, which comprises network equipment and at least one terminal equipment.

It should be understood that the processor referred to in the embodiments of the present application may be a CPU, but may also be other general purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the 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 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 when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the various numbers referred to in the various embodiments of the present application are merely for convenience of description and differentiation, and the serial numbers of the above-mentioned processes do not imply any order of execution, and the order of execution of the processes should be determined by their function and inherent logic, and should not constitute any limitation on the implementation of the embodiments of the present invention.

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 (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: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

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 indication method for canceling uplink transmission, the method comprising:

receiving first Downlink Control Information (DCI) in a first time unit, wherein the first DCI comprises a first bit sequence, and a first bit in the first bit sequence is used for indicating whether uplink transmission on a first time-frequency resource is cancelled;

receiving a second DCI in a second time unit, where the second DCI includes a second bit sequence, a second bit in the second bit sequence is used to indicate whether to cancel uplink transmission on a second time-frequency resource, and the second time unit is after the first time unit;

when the first time-frequency resource and the second time-frequency resource have overlapped time-frequency resources and the values of the first bit and the second bit are different, whether uplink transmission on a third time-frequency resource is cancelled is determined according to the time-frequency resource granularity indicated by the first bit and the time-frequency resource granularity indicated by the second bit, wherein the third time-frequency resource is the time-frequency resource overlapped by the first time-frequency resource and the second time-frequency resource.

2. The method of claim 1, wherein the determining whether to cancel uplink transmission on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit comprises:

and when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time frequency resource is a proper subset of the second time frequency resource, determining whether to cancel uplink transmission on the third time frequency resource according to the first bit.

3. The method of claim 2, wherein the determining whether to cancel uplink transmission on a third time-frequency resource according to the first bit comprises:

and when the first bit indicates not to cancel the uplink transmission and the second bit indicates to cancel the uplink transmission, determining not to cancel the uplink transmission on the third time-frequency resource.

4. The method of claim 2, wherein the determining whether to cancel uplink transmission on a third time-frequency resource according to the first bit comprises:

and when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled, reporting an information configuration error indication to the network equipment.

5. The method according to any of claims 1 to 4, wherein the determining whether to cancel uplink transmission on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit comprises:

and when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the second time frequency resource is a proper subset of the first time frequency resource, determining whether to cancel uplink transmission on the third time frequency resource according to the second bit.

6. The method of claim 5, wherein the determining whether to cancel uplink transmission on a third time-frequency resource according to the second bit comprises:

and when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled, determining not to cancel the uplink transmission on the third time-frequency resource.

7. The method of claim 1, wherein the determining whether to cancel uplink transmission on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit comprises:

when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, determining not to cancel uplink transmission on the third time frequency resource; alternatively, the first and second electrodes may be,

when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, determining not to cancel uplink transmission on the third time frequency resource; alternatively, the first and second electrodes may be,

and when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, determining not to cancel uplink transmission on the third time frequency resource.

8. The method according to any one of claims 1 to 7, further comprising:

receiving fourth DCI, where the fourth DCI is used to schedule uplink transmission on a fifth time-frequency resource, the fifth time-frequency resource overlaps with the third time-frequency resource, and the fourth DCI includes priority indication information, and the priority indication information is used to indicate a priority of data in uplink transmission scheduled by the fourth DCI;

the determining whether to cancel uplink transmission on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit includes:

and determining whether to cancel uplink transmission on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit and the priority indication information.

9. An indication method for canceling uplink transmission, the method comprising:

sending first Downlink Control Information (DCI) in a first time unit, wherein the first DCI comprises a first bit sequence, and a first bit in the first bit sequence is used for indicating whether uplink transmission of terminal equipment on a first time-frequency resource is cancelled or not;

sending a second DCI in a second time unit, where the second DCI includes a second bit sequence, a second bit in the second bit sequence is used to indicate whether to cancel uplink transmission of the terminal device on a second time-frequency resource, and the second time unit is after the first time unit;

when the first time-frequency resource and the second time-frequency resource have overlapped time-frequency resources and the values of the first bit and the second bit are different, whether uplink data from the terminal equipment is received on a third time-frequency resource is determined according to the time-frequency resource granularity indicated by the first bit and the time-frequency resource granularity indicated by the second bit, wherein the third time-frequency resource is the time-frequency resource overlapped by the first time-frequency resource and the second time-frequency resource.

10. The method of claim 9, wherein the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit comprises:

and when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time domain resource is a proper subset of the second time domain resource, determining whether to receive uplink data from the terminal equipment on the third time frequency resource according to the first bit.

11. The method of claim 10, wherein the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the first bit comprises:

and when the first bit indicates not to cancel uplink transmission and the second bit indicates to cancel uplink transmission, receiving uplink data from the terminal equipment on the third time-frequency resource.

12. The method of claim 10, wherein the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the first bit comprises:

and when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled, receiving an information configuration error indication from the terminal equipment.

13. The method according to any one of claims 9 to 12, wherein the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit comprises:

and when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the second time domain resource is a proper subset of the first time domain resource, determining whether to receive uplink data from the terminal equipment on the third time frequency resource according to the second bit.

14. The method of claim 13, wherein the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the second bit comprises:

and when the first bit indicates that the uplink transmission is cancelled and the second bit indicates that the uplink transmission is not cancelled, determining to receive the uplink data from the terminal equipment on the third time-frequency resource.

15. The method of claim 9, wherein the determining whether to receive uplink data from the terminal device on a third time-frequency resource according to the time-domain resource granularity indicated by the first bit and the time-domain resource granularity indicated by the second bit comprises:

when the time domain resource granularity indicated by the first bit is the same as the time domain resource granularity indicated by the second bit and the first time frequency resource and the second time frequency resource are partially overlapped, receiving uplink data from the terminal equipment on the third time frequency resource; alternatively, the first and second electrodes may be,

when the time domain resource granularity indicated by the first bit is smaller than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, receiving uplink data from the terminal equipment on the third time frequency resource; alternatively, the first and second electrodes may be,

and when the time domain resource granularity indicated by the first bit is larger than the time domain resource granularity indicated by the second bit and the first time frequency resource is partially overlapped with the second time frequency resource, receiving uplink data from the terminal equipment on the third time frequency resource.

16. The method according to any one of claims 9 to 15, further comprising:

sending fourth DCI, where the fourth DCI is used to schedule uplink transmission on a fifth time-frequency resource, where the fifth time-frequency resource and the third time-frequency resource are overlapped, and the fourth DCI includes priority indication information, and the priority indication information is used to indicate a priority of data in uplink transmission scheduled by the fourth DCI;

the determining, according to the time domain resource granularity indicated by the first bit and the time domain resource granularity indicated by the second bit, whether to receive uplink data from the terminal device on a third time-frequency resource includes:

and determining whether to receive uplink data from the terminal equipment on the third time-frequency resource according to the time-domain resource granularity indicated by the first bit, the time-domain resource granularity indicated by the second bit and the priority indication information.

17. A communication apparatus, characterized in that the apparatus comprises means for performing the method according to any of claims 1 to 8 or comprises means for performing the method according to any of claims 9 to 16.

18. An apparatus for communication, the apparatus comprising at least one processor coupled with at least one memory:

the at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the method of any one of claims 1 to 8 or to cause the apparatus to perform the method of any one of claims 9 to 16.

19. A computer-readable storage medium storing instructions that, when executed, implement the method of any one of claims 1 to 8 or the method of any one of claims 9 to 16.