CN112218372B

CN112218372B - Communication method and communication device

Info

Publication number: CN112218372B
Application number: CN201910631294.0A
Authority: CN
Inventors: 王俊伟; 张兴炜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2022-04-05
Anticipated expiration: 2039-07-12
Also published as: CN112218372A; WO2021008335A1

Abstract

When resource conflict occurs between a service scheduled by a high-level signaling and a service scheduled by first DCI and non-sequential transmission occurs between the service scheduled by the first DCI and the service scheduled by second DCI, whether to resume the scheduling of the high-level signaling is determined according to whether to execute the scheduling of the first DCI. Based on the scheme, whether the scheduling of the high-level signaling is resumed is determined according to whether the scheduling of the first DCI is resumed, so that the performance requirement of the service scheduled by the high-level signaling is met when the scheduling of the high-level signaling is resumed.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

Currently, in a communication system, a network device may transmit uplink signals or downlink signals on certain specific symbols through high-layer signaling configuration, where the specific symbols are defined as flexible (flexible) attributes, which may be referred to as flexible symbols.

If the terminal device receives Downlink Control Information (DCI) sent by the network device before the terminal device sends the uplink signal using the flexible symbol, the DCI is used to schedule the terminal device to receive the downlink signal on the flexible symbol, and at this time, the terminal device abandons sending the uplink service data on the flexible symbol and instead receives the downlink service data scheduled by the DCI on the flexible symbol.

However, if the terminal device receives another DCI (e.g., DCI #2) after the DCI (e.g., DCI #1) before the terminal device receives the DCI-scheduled downlink traffic data, the transmission timing of the DCI # 2-scheduled traffic data is earlier than the transmission timing of the DCI # 1-scheduled traffic data, at this time, the terminal device may determine whether to give up receiving the DCI # 1-scheduled downlink traffic data.

When the terminal device determines to abandon receiving the downlink traffic data scheduled by DCI #, the existing protocol has not been discussed as to whether to resume transmitting uplink traffic data on the flexible symbol.

Disclosure of Invention

The application provides a communication method, which is expected to meet the performance requirement of a service scheduled by a high-level signaling.

In a first aspect, a communication method is provided, including: a terminal device (which may also be a module, e.g., a chip, in the terminal device) receives a first signaling, where the first signaling instructs the terminal device to receive first information on a first time domain resource; receiving first Downlink Control Information (DCI), wherein the first DCI instructs the terminal equipment to transmit second information on a second time domain resource, the first time domain resource and the second time domain resource are overlapped on a fourth time domain resource, and part or all symbols on the fourth time domain resource are configured to be flexible symbols; receiving second DCI, wherein the second DCI indicates the terminal equipment to send third information on a third time domain resource, the starting time of the second DCI is later than that of the first DCI, and the starting time of the third time domain resource is earlier than that of the second time domain resource; determining whether to receive the first information on the first time domain resource according to whether to transmit the second information on the second time domain resource.

Based on the technical scheme, when the resource conflict occurs between the service scheduled by the first signaling and the service scheduled by the first DCI and the non-sequential transmission occurs between the service scheduled by the first DCI and the service scheduled by the second DCI, whether the scheduling of the first signaling is resumed or not is determined according to whether the scheduling of the first DCI is resumed or not, so that the performance requirement of the service scheduled by the first signaling is met when the scheduling of the first signaling is resumed.

In a possible implementation manner, a time interval between the ending time of the third time domain resource and the starting time of the first time domain resource is greater than or equal to a first time threshold.

Based on the above technical solution, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume executing the scheduling of the first signaling according to a time interval between an end time of the third time domain resource and a start time of the first time domain resource, so that it is determined that the scheduling of the first signaling is resumed in time when the scheduling of the first signaling is resumed, and thus a performance requirement of a service scheduled by the first signaling is satisfied when the scheduling of the first signaling is resumed.

In a possible implementation manner, the determining whether to receive the first information on the first time domain resource according to whether to send the second information on the second time domain resource includes: receiving the first information on the first time domain resource when the second information is not transmitted on the second time domain resource; or, when the second information is transmitted on the second time domain resource, the first information is not received on the first time domain resource.

In a possible implementation manner, the receiving the first information on the first time domain resource when the second information is not transmitted on the second time domain resource includes: and when the second information is not sent on the second time domain resource and when the first time domain resource of the second carrier is not used for uplink transmission, receiving the first information on the first time domain resource of the first carrier, wherein the first carrier and the second carrier are two carriers activated by the terminal equipment and used for communicating with the network equipment.

Based on the above technical solution, in a multi-carrier scenario, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume performing the scheduling of the first signaling according to whether the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent, and when the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent (for example, both are used for downlink transmission), it is determined to resume performing the scheduling of the first signaling, so that a performance requirement of a service scheduled by the first signaling is met when it is determined to resume performing the scheduling of the first signaling.

In one possible implementation, a time interval between the ending time of the second DCI and the starting time of the first time domain resource is greater than or equal to a second time threshold.

Based on the above technical solution, when it is determined that the second information is not transmitted on the second time domain resource, further, it is determined whether to resume executing the scheduling of the first signaling according to a time interval between an end time of the second DCI and a start time of the first time domain resource, so that it is determined that the scheduling of the first signaling is resumed in time, and thus a performance requirement of a service scheduled by the first signaling is satisfied when it is determined that the scheduling of the first signaling is resumed.

In a possible implementation manner, the first information is a channel state information reference signal CSI-RS or data carried on a physical downlink shared channel PDSCH.

Based on the above technical solution, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume performing scheduling of the first signaling according to the first information, so that, in a case where the first information is, for example, a channel state information reference signal CSI-RS or data carried on a physical downlink shared channel PDSCH, it is determined to resume performing scheduling of the first signaling, thereby meeting a performance requirement of a service scheduled by the first signaling when it is determined to resume performing scheduling of the first signaling.

The first signaling may be, for example, a higher layer signaling.

In a second aspect, a communication method is provided, including: a terminal device (which may also be a module, e.g., a chip, in the terminal device) receives a first signaling, where the first signaling instructs the terminal device to send first information on a first time domain resource; receiving first Downlink Control Information (DCI), wherein the first DCI indicates that the terminal equipment receives second information on a second time domain resource, the first time domain resource and the second time domain resource are overlapped on a fourth time domain resource, and part or all symbols on the fourth time domain resource are configured to be flexible symbols; receiving second DCI, where the second DCI is used to instruct the terminal device to receive third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and a starting time of the third time domain resource is earlier than a starting time of the second time domain resource; determining whether to transmit the first information on the first time domain resource according to whether to receive the second information on the second time domain resource.

In a possible implementation manner, a time interval between the ending time of the third time domain resource and the starting time of the first time domain resource is greater than or equal to a preset third time threshold.

In a possible implementation manner, the determining whether to send the first information on the first time domain resource according to whether to receive the second information on the second time domain resource includes: determining to transmit the first information on the first time domain resource when the second information is not received on the second time domain resource; or, when the second information is received on the second time domain resource, determining not to transmit the first information on the first time domain resource.

In one possible implementation manner, when the second information is not transmitted on the second time domain resource, determining to transmit the first information on the first time domain resource includes: when the first time domain resource of the second carrier is not used for downlink transmission, determining to send the first information on the first time domain resource of the first carrier, where the first carrier and the second carrier are any two carriers of at least two carriers.

Based on the above technical solution, in a multi-carrier scenario, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume performing the scheduling of the first signaling according to whether the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent, and when the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent (for example, both are used for uplink transmission), it is determined to resume performing the scheduling of the first signaling, so that a performance requirement of a service scheduled by the first signaling is met when it is determined to resume performing the scheduling of the first signaling.

In a possible implementation manner, a time interval between the ending time of the second DCI and the starting time of the first time domain resource is greater than or equal to a preset fourth time threshold.

In one possible implementation manner, the first information includes uplink control information UCI.

Based on the above technical solution, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume executing the scheduling of the first signaling according to the first information, so that, in a case where the first information is, for example, uplink control information UCI, it is determined to resume executing the scheduling of the first signaling, thereby satisfying a performance requirement of a service scheduled by the first signaling when it is determined to resume executing the scheduling of the first signaling.

The first signaling may be, for example, a higher layer signaling.

In a third aspect, a communication method is provided, including: a network device (which may also be a module, e.g., a chip, in the network device) sends a first signaling, where the first signaling instructs a terminal device to receive first information on a first time domain resource; sending first Downlink Control Information (DCI), wherein the first DCI instructs the terminal equipment to send second information on a second time domain resource, the first time domain resource and the second time domain resource are overlapped on a fourth time domain resource, and part or all symbols on the fourth time domain resource are configured to be flexible symbols; sending a second DCI, wherein the second DCI instructs the terminal equipment to send third information on a third time domain resource, the starting time of the second DCI is later than that of the first DCI, and the starting time of the third time domain resource is earlier than that of the second time domain resource; determining whether to transmit the first information on the first time domain resource according to whether to receive the second information on the second time domain resource.

Based on the technical scheme, when the resource conflict occurs between the service scheduled by the first signaling and the service scheduled by the first DCI and the non-sequential transmission occurs between the service scheduled by the first DCI and the service scheduled by the second DCI, whether the first information is recovered to be sent on the first time domain resource is determined according to whether the second information is received on the second time domain resource, so that the performance requirement of the service scheduled by the first signaling is met when the first information is determined to be recovered to be sent on the first time domain resource.

Based on the above technical solution, when it is determined that the second information is not received on the second time domain resource, further, it is determined whether to resume sending the first information on the first time domain resource according to a time interval between an end time of the third time domain resource and a start time of the first time domain resource, so as to determine to resume sending the first information on the first time domain resource when the first information is sent on the first time domain resource is reached, thereby meeting a performance requirement of a service scheduled by the first signaling when it is determined to resume sending the first information on the first time domain resource.

In a possible implementation manner, the determining whether to send the first information on the first time domain resource according to whether to receive the second information on the second time domain resource includes: transmitting the first information on the first time domain resource when the second information is not received on the second time domain resource; or, when the second information is received on the second time domain resource, the first information is not transmitted on the first time domain resource.

In a possible implementation manner, the sending the first information on the first time domain resource when the second information is not received on the second time domain resource includes: and when the second information is not received on the second time domain resource and when the first time domain resource of the second carrier is not used for uplink transmission, sending the first information on the first time domain resource of the first carrier, wherein the first carrier and the second carrier are two carriers activated by the terminal equipment and used for communicating with the network equipment.

Based on the above technical solution, in a multi-carrier scenario, when it is determined that the second information is not received on the second time domain resource, further, it is determined whether to resume sending the first information on the first time domain resource according to whether the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent, and when the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent (for example, both are used for downlink transmission), it is determined to resume sending the first information on the first time domain resource, so that a performance requirement of a service scheduled by the first signaling is met when it is determined to resume sending the first information on the first time domain resource.

Based on the above technical solution, when it is determined that the second information is not received on the second time domain resource, further, it is determined whether to resume sending the first information on the first time domain resource according to a time interval between an end time of the second DCI and a start time of the first time domain resource, so as to determine to resume sending the first information on the first time domain resource when the first information is sent on the first time domain resource is reached, thereby meeting a performance requirement of a service scheduled by the first signaling when it is determined to resume sending the first information on the first time domain resource.

Based on the above technical solution, when it is determined that the second information is not received on the second time domain resource, further, it is determined whether to resume transmitting the first information on the first time domain resource according to the first information, so that in a case where the first information is, for example, a CSI-RS or data carried on a PDSCH, it is determined to resume transmitting the first information on the first time domain resource, thereby meeting a performance requirement of a service scheduled by the first signaling when it is determined to resume transmitting the first information on the first time domain resource.

The first signaling may be, for example, a higher layer signaling.

In a fourth aspect, a communication method is provided, including: a network device (which may also be a module, e.g., a chip, in the network device) sends a first signaling, where the first signaling instructs the terminal device to send first information on a first time domain resource; sending first Downlink Control Information (DCI), wherein the first DCI indicates the terminal equipment to receive second information on a second time domain resource, the first time domain resource and the second time domain resource are overlapped on a fourth time domain resource, and part or all symbols on the fourth time domain resource are configured to be flexible symbols; sending a second DCI, where the second DCI is used to instruct the terminal device to receive third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and a starting time of the third time domain resource is earlier than a starting time of the second time domain resource; determining whether to receive the first information on the first time domain resource according to whether to transmit the second information on the second time domain resource.

Based on the technical scheme, when the resource conflict occurs between the service scheduled by the first signaling and the service scheduled by the first DCI and the non-sequential transmission occurs between the service scheduled by the first DCI and the service scheduled by the second DCI, whether to resume receiving the first information on the first time domain resource is determined according to whether to send the second information on the second time domain resource, so that the performance requirement of the service scheduled by the first signaling is met when the first information is determined to resume receiving on the first time domain resource.

Based on the above technical solution, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume receiving the first information on the first time domain resource according to a time interval between an end time of the third time domain resource and a start time of the first time domain resource, so as to determine to resume receiving the first information on the first time domain resource in a case where it is determined that the first information on the first time domain resource is received in time, thereby satisfying a performance requirement of a service scheduled by the first signaling when it is determined to resume receiving the first information on the first time domain resource.

In a possible implementation manner, the determining whether to receive the first information on the first time domain resource according to whether to send the second information on the second time domain resource includes: determining to receive the first information on the first time domain resource when the second information is not transmitted on the second time domain resource; or, when the second information is transmitted on the second time domain resource, determining not to receive the first information on the first time domain resource.

In one possible implementation, when the second information is not received on the second time domain resource, determining to receive the first information on the first time domain resource includes: when the first time domain resource of the second carrier is not used for downlink transmission, determining to receive the first information on the first time domain resource of the first carrier, where the first carrier and the second carrier are any two carriers of at least two carriers.

Based on the above technical solution, in a multi-carrier scenario, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume receiving the first information on the first time domain resource according to whether the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent, and when the transmission directions of the first time domain resource of the first carrier and the first time domain resource of the second carrier are consistent (for example, both are used for uplink transmission), it is determined to resume receiving the first information on the first time domain resource, so that a performance requirement of a service scheduled by the first signaling is met when it is determined to resume receiving the first information on the first time domain resource.

Based on the above technical solution, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume receiving the first information on the first time domain resource according to a time interval between an end time of the second DCI and a start time of the first time domain resource, so as to determine to resume receiving the first information on the first time domain resource in time, and thus meet a performance requirement of a service scheduled by the first signaling when it is determined to resume receiving the first information on the first time domain resource.

Based on the above technical solution, when it is determined that the second information is not sent on the second time domain resource, further, it is determined whether to resume receiving the first information on the first time domain resource according to the first information, so that, in a case where the first information is, for example, uplink control information UCI, it is determined to resume receiving the first information on the first time domain resource, thereby meeting a performance requirement of a service scheduled by the first signaling when it is determined to resume receiving the first information on the first time domain resource.

The first signaling may be, for example, a higher layer signaling.

In a fifth aspect, a communication apparatus is provided, which may be the terminal device in the above method, or a chip applied in the terminal device. The communication device includes: a processor, coupled to the memory, configured to execute instructions in the memory to implement the method performed by the terminal device in the first aspect and any one of the possible implementations of the first aspect; or, to implement the method performed by the terminal device in the second aspect and any one of its possible implementations. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip applied to a terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a sixth aspect, a communication apparatus is provided, which may be a network device in the method, or a chip applied in the network device. The communication device includes: a processor, coupled to the memory, and configured to execute the instructions in the memory to implement the method performed by the network device in the third aspect and any one of the possible implementations of the third aspect; or to implement the method performed by the network device in the fourth aspect and any one of its possible implementations. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

When the communication device is a chip applied in a network device, the communication interface may be an input/output interface.

In a seventh aspect, a program is provided, which, when being executed by a processor, is adapted to carry out any of the methods of the first aspect and its possible embodiments, or to carry out any of the methods of the second aspect and its possible embodiments, or to carry out any of the methods of the third aspect and its possible embodiments, or to carry out any of the methods of the fourth aspect and its possible embodiments.

In an eighth aspect, a program product is provided, the program product comprising: program code for causing a communication apparatus to perform any of the methods of the first aspect and its possible embodiments described above, or for performing any of the methods of the second aspect and its possible embodiments, or for performing any of the methods of the third aspect and its possible embodiments, or for performing any of the methods of the fourth aspect and its possible embodiments, when said program code is run by the communication apparatus.

A ninth aspect provides a computer readable storage medium storing a program that, when executed, causes a communication apparatus to perform any of the methods of the first aspect and its possible implementations, or to perform any of the methods of the second aspect and its possible implementations, or to perform any of the methods of the third aspect and its possible implementations, or to perform any of the methods of the fourth aspect and its possible implementations.

Drawings

Fig. 1 is an architecture diagram of a mobile communication system suitable for use in embodiments of the present application;

FIG. 2 is a schematic diagram of sequential transmission;

FIG. 3 is a schematic illustration of a non-sequential transmission;

fig. 4 is a schematic diagram of uplink and downlink transmission in a multi-scheduling coexistence scenario;

fig. 5 is a schematic interaction diagram of a method of wireless communication provided by an embodiment of the application;

fig. 6 is a schematic diagram of uplink and downlink transmission in a single carrier scenario;

fig. 7 is a schematic diagram of uplink and downlink transmission in a multi-carrier scenario;

fig. 8 is a schematic interaction diagram of another method of wireless communication provided by an embodiment of the application;

fig. 9 is a schematic diagram of another uplink and downlink transmission in a single carrier scenario;

fig. 10 is a schematic diagram of another uplink and downlink transmission in a multi-carrier scenario;

FIG. 11 is a schematic block diagram of a communications device provided herein;

fig. 12 is a schematic block diagram of another communication device provided herein.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, a New Radio (NR) in a 5th Generation (5G) mobile communication system of an LTE Time Division Duplex (TDD), a future mobile communication system, and the like.

Fig. 1 is a schematic architecture diagram of a mobile communication system suitable for use in the embodiments of the present application. As shown in fig. 1, the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (e.g., a terminal device 130 and a terminal device 140 in fig. 1). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. Fig. 1 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 1. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

The Radio Access Network device in this embodiment is an Access device in which a terminal device is accessed to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved node b (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an Access node in a WiFi system, or may be a Radio controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, a vehicle-mounted device, a wearable device, a Network device in a PLMN Network in the future evolution, or the like. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device. In this application, a radio access network device is referred to as a network device for short, and if no special description is provided, network devices are referred to as radio access network devices in this application.

The Terminal device in the embodiment of the present application may also be referred to as a Terminal, a Terminal device (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in home (smart home), and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

The network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the network device and the terminal device.

The network device and the terminal device may communicate with each other through a licensed spectrum (licensed spectrum), may communicate with each other through an unlicensed spectrum (unlicensed spectrum), or may communicate with each other through both the licensed spectrum and the unlicensed spectrum. The network device and the terminal device may communicate with each other through a frequency spectrum of 6 gigahertz (GHz) or less, through a frequency spectrum of 6GHz or more, or through both a frequency spectrum of 6GHz or less and a frequency spectrum of 6GHz or more. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

It is to be understood that, in the embodiments of the present application, a Physical Downlink Shared Channel (PDSCH), a Physical Downlink Control Channel (PDCCH), and a Physical Uplink Shared Channel (PUSCH) are only used as examples of a downlink data channel, a downlink control channel, and an uplink data channel, and in different systems and different scenarios, data channels and control channels may have different names, which is not limited in the embodiments of the present application.

First, a time domain resource used for wireless communication in the embodiment of the present application will be briefly described.

In the embodiment of the present application, a time domain resource used by a network device and a terminal device for wireless communication may be divided into a plurality of time units in a time domain. The plurality of time units may be consecutive, or some adjacent time units may have a certain time interval therebetween, and the embodiment of the present application is not particularly limited. The time unit may be used for uplink data transmission or downlink data transmission.

In the embodiments of the present application, the length of one time unit is not limited, for example, 1 time unit may be one or more subframes; or, it may be one or more slots (slots); alternatively, it may be one or more symbols.

In the embodiments of the present application, a symbol is also referred to as a time domain symbol, and may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a single carrier-frequency division multiplexing (SC-FDM) symbol. The symbols in the embodiments of the present application all refer to time domain symbols, if not otherwise specified.

In the embodiment of the present application, for a plurality of time units, the time units have a time sequence relationship in a time domain, and the time lengths corresponding to any two time units may be the same or different.

In the following, for ease of understanding, description will be made on sequential transmission (in order transmission) and non-sequential transmission (out of order transmission) which are referred to in the embodiments of the present application.

Sequential transmission

The sequential transmission refers to scheduling information which is sent first, corresponding scheduling data of the scheduling information arrives first, and corresponding feedback information also arrives first; or the scheduling data corresponding to the scheduling information sent later does not arrive earlier than the scheduling data corresponding to the scheduling information sent earlier, and the corresponding feedback information does not arrive earlier than the feedback information corresponding to the scheduling information sent earlier. The scheduling information may be DCI carried on the PDCCH, the scheduling data may be data carried on the PDSCH, and the feedback information may be hybrid automatic repeat request-acknowledgement (HARQ-ACK) information.

As shown in fig. 2, scheduling information #1 arrives at slot # n, scheduling information #2 arrives at slot # (n +1), scheduling data #2 arrives no earlier than scheduling data #1, and HARQ-ACK information #2 arrives no earlier than HARQ-ACK information # 1. Here, the scheduling data #1 is scheduled by the scheduling information #1, and the HARQ-ACK information #1 is HARQ-ACK information corresponding to the scheduling information #1, and may also be referred to as HARQ-ACK information corresponding to the scheduling data # 1.

Non-sequential transmission

The non-sequential transmission refers to that the scheduling information which is sent first arrives after the corresponding scheduling data or arrives after the corresponding feedback information; or the scheduling data corresponding to the scheduling information transmitted later arrives earlier than the scheduling data corresponding to the scheduling information transmitted earlier (case #1), or the HARQ-ACK information corresponding to the scheduling information transmitted later arrives earlier than the HARQ-ACK information corresponding to the scheduling information transmitted earlier (case # 2).

As shown in fig. 3, for case # 1: scheduling information #1 arrives at slot # n, scheduling information #2 arrives at slot # (n +1), and scheduling data #2 arrives earlier than scheduling data #1, but HARQ-ACK information #2 corresponding to scheduling data #2 arrives no earlier than HARQ-ACK information #1 corresponding to scheduling data # 1.

For case # 2: scheduling information #1 arrives at slot # n, scheduling information #2 arrives at slot # (n +1), and scheduling data #1 arrives earlier than scheduling data #2, but HARQ-ACK information #2 corresponding to scheduling data #2 arrives earlier than HARQ-ACK information #1 corresponding to scheduling data # 1.

In the above, technical terms related to the embodiments of the present application are simply described. Next, a method of wireless communication according to an embodiment of the present application will be described in detail.

As shown in fig. 4, the network device configures the symbols on slot # (n +3) into flexible symbols through high-level signaling, where the flexible symbols refer to symbols that can be used for both uplink transmission and downlink transmission. That is, the symbol on slot # (n +3) can be used for both uplink transmission and downlink transmission. For example, the network device schedules the terminal device to perform downlink reception on slot # (n +3) through a high-layer signaling, and at this time, if the terminal device receives DCI (DCI #1) from the network device before performing downlink reception on slot # (n +3), the terminal device is scheduled to perform uplink transmission on slot # (n +3), that is, time domain resources corresponding to uplink transmission and downlink reception collide. In this case, the terminal device cancels the downlink reception at slot # (n +3), and performs the uplink transmission operation at slot # (n + 3).

If the terminal device receives the DCI #2 from the network device after the DCI #1, the terminal device is scheduled to perform uplink transmission on slot # (n +2), and at this time, the DCI #2 and the DCI #1 are transmitted out of sequence. In this case, the terminal device cancels the uplink transmission on the slot # (n +3), at this time, there is no resource conflict in the time domain resource corresponding to the downlink reception, and at this time, it is very useful to discuss whether to resume the downlink reception on the slot # (n + 3).

Therefore, the embodiment of the present application provides a method for wireless communication, which is helpful for meeting the performance requirement of a service scheduled by a high-level signaling.

Hereinafter, the method of wireless communication according to the embodiment of the present application will be described in detail with reference to fig. 5 to 10.

Fig. 5 is a schematic interaction diagram of a method 200 of wireless communication provided by an embodiment of the application. Each step of the method 200 is described in detail below.

In the embodiment of the present application, the method 200 is described by taking a terminal device and a network device as an example of an execution subject for executing the method 200. By way of example and not limitation, the execution subject of the execution method 200 may also be a chip corresponding to the terminal device and a chip corresponding to the network device.

In S210, the network device transmits signaling #1 (i.e., an example of the first signaling) to the terminal device, and the signaling #1 instructs the terminal device to receive information #1 (i.e., an example of the first information) on the time domain resource #1 (i.e., the first time domain resource). Accordingly, the terminal device receives the signaling #1 from the network device.

That is, the network device notifies the terminal device of receiving information #1 on time domain resource #1 through signaling #1, where signaling #1 may be higher layer signaling, e.g., Radio Resource Control (RRC) signaling.

For example, the network device indicates semi-persistent scheduling (SPS) resources to the terminal device through RRC signaling, and transmits an activation command of the SPS resources to the terminal device, so that the terminal device can receive or transmit data using the SPS resources in an active state, where the SPS resources in the active state include time domain resource # 1.

In S220, the network device transmits DCI #1 (i.e., an example of the first DCI) to the terminal device, the DCI #1 instructs the terminal device to transmit information #2 (i.e., an example of the second information) on time domain resource #2 (i.e., an example of the second time domain resource), the time domain resource #1 and the time domain resource #2 overlap on time domain resource #4 (i.e., an example of the fourth time domain resource), which is also referred to as that the time domain resource #1 and the time domain resource #2 overlap, and part or all of symbols on the time domain resource #4 are configured as flexible symbols. Accordingly, the terminal device receives DCI #1 from the network device.

The priority of DCI is generally considered to be higher than that of higher layer signaling, and therefore, when time domain resource #1 overlaps with time domain resource #2, the terminal apparatus may cancel the scheduling of signaling #1 and perform the scheduling of DCI #1 in turn.

In S230, the network device transmits DCI #2 (i.e., an example of the second DCI) to the terminal device, the DCI #2 instructing the terminal device to transmit information #3 (i.e., an example of the third information) on time domain resource #3 (i.e., an example of the third time domain resource), the start time of DCI #2 being later than the start time of DCI #1, and the start time of time domain resource #3 being earlier than the start time of time domain resource # 2. Accordingly, the terminal device receives DCI #2 from the network device.

The terminal device receives DCI #2, and since the start time of DCI #2 is later than the start time of DCI #1, and the start time of time domain resource #3 is earlier than the start time of time domain resource #2, referring to the above description of non-sequential transmission, it can be seen that non-sequential transmission occurs in the scheduling between DCI #2 and DCI # 1.

In S240, the terminal device determines whether to receive information #1 on time domain resource #1 according to whether to transmit information #2 on time domain resource # 2.

In view of the occurrence of non-sequential transmission in scheduling between DCI #2 and DCI #1, the terminal apparatus may determine whether to perform scheduling of DCI #1, i.e., determine whether to transmit information #2 on time domain resource #2, and according to the determination result, determine whether to resume performing scheduling of signaling #1, i.e., determine whether to receive information #1 on time domain resource # 1.

Accordingly, the method 200 may further include S250, the network device may determine whether to transmit the information #1 on the time domain resource #1 according to whether to receive the information #2 on the time domain resource # 2.

In view of the occurrence of non-sequential transmission in scheduling between DCI #2 and DCI #1, the network device may determine whether to receive information #2 on time domain resource #2, and determine whether to transmit information #1 on time domain resource #1 according to the determination result.

It should be noted that, in S240 and S250, the determination results obtained by the terminal device and the network device respectively are consistent, for example, when the terminal device determines not to transmit the information #2 on the time domain resource #2, the network device may determine not to receive the information #2 on the time domain resource #2 accordingly; when the terminal device determines to transmit information #2 on time domain resource #2, the network device may determine to receive information #2 on time domain resource #2 accordingly.

For example, when the network device determines to transmit information #1 on time domain resource #1, the terminal device may determine to receive information #1 on time domain resource #1 accordingly; when the network device determines not to transmit information #1 on time domain resource #1, the terminal device may determine not to receive information #1 on time domain resource #1 accordingly.

Based on the above technical solution, when a resource conflict occurs between a service scheduled by signaling #1 and a service scheduled by DCI #1, if a non-sequential transmission occurs between the service scheduled by DCI #1 and the service scheduled by DCI #2, at this time, by determining whether to resume performing the scheduling of signaling #1 according to whether to perform the scheduling of DCI #1, a performance requirement of the service scheduled by signaling #1 is satisfied when determining to resume performing the scheduling of signaling # 1.

The following takes a terminal device as an execution subject, and details the method 200 for wireless communication provided in the embodiment of the present application in different scenarios are described. When the network device is used as the execution subject, the corresponding technical solutions may refer to the following descriptions in the scenario #1 and the scenario #2, and for brevity, the following descriptions are omitted.

Scene #1 Single Carrier scene

As shown in fig. 6, the terminal device first receives the signaling #1 to instruct the terminal device to receive the information #1 on the time domain resource #1 (e.g., symbol #6 to symbol #13 of slot # (n + 3)); then, the terminal device receives DCI #1 on symbol #1 and symbol #2 of slot # n, and DCI #1 instructs the terminal device to transmit information #2 on time domain resource #2 (for example, symbols #0 to #8 of slot # (n + 3)). Wherein the symbols in slot # (n +3) are configured for flexible symbols.

The terminal device has received DCI #2 on slot #1 and slot #2, and DCI #2 instructs the terminal device to transmit information #3 on time domain resource #3 (e.g., slot #0 to slot #13 of slot # (n +2) and slot #0 to slot #1 of slot # (n + 3)).

It can be seen that the resource scheduled by signaling #1 overlaps with the resource scheduled by DCI #1, where the overlapping resources are time domain resource #4 (e.g. symbol #6 to symbol #8 in slot # (n + 3)). At this time, the terminal device usually cancels the scheduling of the execution signaling #1 and performs the scheduling of the DCI # 1.

It can also be seen that non-sequential transmission occurs in the scheduling between DCI #2 and DCI # 1. In this case, the terminal apparatus may further determine whether to perform scheduling of DCI #1, and may determine whether to resume performing scheduling of signaling #1 according to whether to perform scheduling of DCI # 1.

The terminal apparatus can determine whether to perform scheduling of DCI #1 in the following several ways.

Mode #1

When the non-sequential transmission occurs, the terminal device cancels the execution of the scheduling of DCI # 1.

It should be noted that, when the scheduling between DCI #1 and DCI #2 is sequential transmission, if the time domain resource scheduled by DCI #1 overlaps with the time domain resource scheduled by DCI #2, the terminal device may also cancel the execution of the scheduling of DCI #1 or cancel the execution of DCI # 2.

Mode #2

The terminal device may determine whether to perform the scheduling of DCI #1 according to the priority of the traffic scheduled by DCI #1 and DCI #2, respectively. If the priority of the scheduled service of the DCI #1 is lower than the priority of the scheduled service of the DCI #2, the terminal device determines to cancel the execution of the scheduling of the DCI # 1.

The terminal device can judge the priority of the service by the following method:

(1) and determining the priority of the service according to the starting time of the DCI, wherein, for example, the priority of the DCI with the later starting time is higher.

(2) And determining the type of the service scheduled by the DCI according to the indication of the physical layer signaling, and determining the priority of the service according to the type of the service, wherein the physical layer signaling is a field in the DCI. For example, several bits may be added in the physical layer signaling to indicate the type of the service scheduled by the DCI, and the terminal device determines the priority of the service according to the type of the service scheduled by the DCI. For example, enhanced mobile broadband (eMBB) traffic is generally considered to have a lower priority than ultra-reliable and low-latency communications (URLLC) traffic.

(3) The eMBB service and URLLC service are taken as examples for explanation. When search spaces of eMB service and URLLC service are configured, the respective search spaces are ensured not to overlap, DCI detected by the terminal device in the search space configured for the eMB service is used for scheduling the eMB service (namely, low priority service), and DCI detected in the search space configured for the URLLC service is used for scheduling the URLLC service (namely, high priority service).

DCI #2 and DCI #1 will be described as an example. The terminal device may also determine whether to perform scheduling of DCI #1 according to a time interval between the end time of time domain resource #3 and the start time of time domain resource # 2. For example, when the number of symbols between the end time of the time domain resource #3 and the start time of the time domain resource #2 is less than or equal to 5, it is determined that the scheduling of DCI #1 is cancelled.

When the terminal device determines to cancel the execution of the scheduling of DCI #1, there is no overlap between the resource scheduled by DCI #1 and the resource scheduled by signaling #1, and at this time, the terminal device may determine whether to resume the execution of the scheduling of signaling # 1.

The terminal device can determine whether to resume performing the scheduling of the signaling #1 by the following several methods.

Method #1

When the terminal device determines to cancel the execution of the scheduling of DCI #1, that is, the terminal device determines not to transmit information #2 on the time domain resource #2, it determines to resume the execution of the scheduling of signaling #1, that is, it determines to receive information #1 on the time domain resource # 1; alternatively, when the terminal device determines to perform scheduling of DCI #1, i.e., the terminal device determines to transmit information #2 on time domain resource #2, it is determined not to resume performing scheduling of signaling #1, i.e., not to receive information #1 on time domain resource # 1.

It should be noted that, in the embodiment of the present application, when the terminal device determines to cancel the execution of the scheduling of DCI #1, at this time, the terminal device may not resume the execution of the scheduling of signaling # 1. And is not described in detail for the sake of brevity.

Method #2

On the basis of method #1, when the terminal device determines to cancel the execution of the scheduling of DCI #1, the terminal device may further determine whether to resume the execution of the scheduling of signaling #1 according to a size relationship between a time interval between an end time of time domain resource #3 and a start time of time domain resource #1 and a time threshold #1 (i.e., an example of the first time threshold). When the time interval between the end time of the time domain resource #3 and the start time of the time domain resource #1 is greater than or equal to the time threshold #1, the terminal device determines to resume performing the scheduling of the signaling # 1.

As shown in stage #3 in fig. 6, the terminal apparatus determines that the end time of the time domain resource #3 is symbol #1 in slot # (n + 3). As shown in phase #1 in fig. 6, the start time of time domain resource #1 is symbol #6 in slot # (n + 3). The time interval between the ending time of the time domain resource #3 and the starting time of the time domain resource #1 is 4 symbols, and the terminal device determines to perform the scheduling of the signaling #1 assuming that the time threshold #1 is 1 symbol.

Method #3

On the basis of method #1, when the terminal device determines to cancel the execution of the scheduling of DCI #1, the terminal device may further determine whether to resume the execution of the scheduling of signaling #1 according to a size relationship between a time interval between an end time of DCI #2 and a start time of time domain resource #1 and a time threshold #2 (i.e., an example of the second time threshold). When the time interval between the end time of DCI #2 and the start time of time domain resource #1 is greater than or equal to time threshold #2, the terminal device determines to resume performing the scheduling of signaling # 1.

As shown in phase #3 in fig. 6, the terminal apparatus determines that the end time of DCI #2 is symbol #1 in slot # (n + 1). As shown in phase #1 in fig. 6, the start time of time domain resource #1 is symbol #6 in slot # (n + 3). The time interval between the end time of DCI #2 and the start time of time domain resource #1 is 32 symbols, and assuming that time threshold #2 is 1 symbol, the terminal device determines to perform scheduling of signaling # 1.

It should be noted that the time threshold #1 and the time threshold #2 may be preset, or may be configured to the terminal device by the network device through signaling, which is not particularly limited in this embodiment of the application. The following time threshold #3 and the time threshold #4 are also described herein for the time threshold #1 and the time threshold #2, and for brevity, will not be described in detail later.

Method #4

On the basis of the method #1, when the terminal device determines to cancel the execution of the scheduling of DCI #1, the terminal device may further determine whether to resume the execution of the scheduling of signaling #1 according to the specific content of the information # 1.

For example, when the information #1 is a channel state information-reference signal (CSI-RS) or data carried on the PDSCH, the terminal device determines whether to perform scheduling of the signaling #1 or not.

Scenario #2 the multicarrier scenario is described by taking a scenario including two carriers, i.e., a carrier #1 and a carrier #2, as an example.

As shown in fig. 7, the terminal device receives signaling #1 from the network device, instructing the terminal device to receive information #1 on time domain resource #1 (e.g., symbol #6 to symbol #13 of slot # (n + 3)) on carrier # 1. The terminal device has received DCI #1 on symbol #1 and symbol #2 of slot # n on carrier #1, and DCI #1 instructs the terminal device to transmit information #2 on time domain resource #2 (e.g., symbol #0 to symbol #8 of slot # (n + 3)) on carrier # 1. Wherein the symbols in slot # (n +3) are configured for flexible symbols. The terminal device receives DCI #2 on symbol #1 and symbol #2 of slot # (n +1) on carrier #2, and DCI #2 instructs the terminal device to transmit information #3 on time domain resource #3 on carrier #2 (e.g., symbols #0 to #13 of slot # (n +2) and symbols #0 to #1 of slot # (n + 3)).

The above description is only exemplary, and does not limit the embodiments of the present application. In a specific implementation, the signaling #1 and the DCI #1 may be carried on a carrier other than the carrier #1, and the DCI #2 may be carried on a carrier other than the carrier # 2; further, at least two of the signaling #1, DCI #1, and DCI #2 may be carried on the same carrier or each carried on a different carrier.

It can be seen that the time domain resource scheduled by the signaling #1 overlaps with the time domain resource scheduled by the DCI #1, where the overlapping resources are time domain resource #4 (for example, symbol #6 to symbol #8 in slot # (n + 3)). At this time, the terminal device usually cancels the scheduling of the execution signaling #1 and performs the scheduling of the DCI # 1.

It can also be seen that non-sequential transmission occurs in the scheduling between DCI #2 and DCI # 1. In this case, the terminal apparatus may further determine whether to perform scheduling of DCI #1, and may determine whether to resume performing scheduling of signaling #1 according to whether to perform scheduling of DCI # 1. For the method for the terminal device to determine whether to perform the scheduling of DCI #1, reference is made to the relevant description in scenario #1, and details are not repeated here for brevity.

Method #1

On the basis of the method #1 in the scenario #1, in addition to determining whether to resume performing the scheduling of the signaling #1 according to whether to cancel performing the scheduling of the DCI #1, the terminal device needs to further determine whether the time domain resource #1 on the carrier other than the carrier #1 coincides with the transmission direction of the time domain resource #1 on the carrier #1 after determining to cancel performing the scheduling of the DCI #1, and the terminal device may determine to resume performing the scheduling of the signaling #1 when the time domain resource #1 on the carrier other than the carrier #1 coincides with the transmission direction of the time domain resource #1 on the carrier # 1.

For example, carrier #1 and carrier #2 are two carriers activated by the terminal device for communicating with the network device, and after the terminal device determines to cancel the scheduling of DCI #1 performed on carrier #1, since signaling #1 indicates that the terminal device receives information #1 on symbols #6 to #13 of slot # (n +3) on carrier #1, the terminal device needs to determine whether symbols #6 to #13 of slot # (n +3) on carrier #2 other than carrier #1 are configured as downlink transmission resources when determining whether to resume performing the scheduling of signaling # 1. In other words, the terminal device can resume performing scheduling of the signaling #1 only when the symbols #6 to #13 of the slot # (n +3) on the carrier #2 are not configured as uplink transmission resources.

For example, as shown in fig. 7, the terminal device has received DCI #3 on symbol #12 and symbol #13 of slot # (n +1) on carrier #2, DCI #3 indicates that the terminal device receives information #4 on slot # (n +3) on carrier #2, and the terminal device may determine that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as uplink transmission resources, and then the terminal device may resume performing scheduling of signaling # 1.

Method #2

On the basis of the method #1 of the scenario #2, when the terminal device determines that the symbols #6 to #13 of the slot # (n +3) on the carrier #2 are not configured as uplink transmission resources, the terminal device may further determine whether to resume performing the scheduling of the signaling #1 according to a size relationship between a time interval between an end time of the time domain resource #3 and a start time of the time domain resource #1 and a time threshold # 1. When the time interval between the end time of the time domain resource #3 and the start time of the time domain resource #1 is greater than or equal to the time threshold #1, the terminal device determines to resume performing the scheduling of the signaling # 1. More specifically, reference may be made to the description related to method #2 in scenario # 1.

Method #3

On the basis of method #1 of scenario #2, when the terminal device determines that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as uplink transmission resources, the terminal device may further determine whether to resume performing the scheduling of signaling #1 according to a size relationship between a time interval between an end time of DCI #2 and a start time of time domain resource #1 and a time threshold #2, and when the time interval between the end time of DCI #2 and the start time of time domain resource #1 is greater than or equal to the time threshold #2, the terminal device determines to resume performing the scheduling of signaling # 1. More specifically, reference may be made to the description related to method #3 in scenario # 1.

Method #4

On the basis of method #1 of scenario #2, when the terminal device determines that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as uplink transmission resources, the terminal device may further determine whether to resume performing scheduling of signaling #1 according to the specific content of information # 1.

For example, when the information #1 is a channel state information reference signal CSI-RS or data carried on a physical downlink shared channel PDSCH, the terminal device determines to perform scheduling of the signaling # 1.

It should be further noted that, the method for the terminal device to determine whether to resume performing the scheduling of the higher layer signaling in the method 200 may be negotiated with the network device, or may also be indicated to the terminal device by the network device, which is not particularly limited in this embodiment of the present application. The description herein applies equally to the method 300, and for the sake of brevity, further description is omitted.

It should be further noted that scenario #2 in the method 200 is also applicable to a scenario in which one carrier is activated with at least two BWPs simultaneously. The description herein applies equally to scenario #2 in method 300, and for brevity, further description is omitted.

The first signaling in the method 200 is used to schedule downlink service data, and the first DCI and the second DCI are respectively used to schedule uplink service data. The present application further provides the method 300 for a case where the first signaling is used for scheduling uplink service data, and the first DCI and the second DCI are respectively used for scheduling downlink service data. Fig. 8 is a schematic interaction diagram of a method 300 of wireless communication provided by an embodiment of the application. Each step of the method 300 is described in detail below.

In the embodiment of the present application, the method 300 is described by taking a terminal device and a network device as examples of the main execution subject of the method 300. By way of example and not limitation, the execution subject of the execution method 300 may also be a chip corresponding to the terminal device and a chip corresponding to the network device.

In S310, the network device transmits signaling #2 (i.e., an example of the first signaling) to the terminal device, where the signaling #2 instructs the terminal device to transmit information #5 (i.e., an example of the first information) on time domain resource #5 (i.e., an example of the first time domain resource). Accordingly, the terminal device receives the signaling #1 from the network device.

That is, the network device notifies the terminal device to transmit information #5 on time domain resource #5 through signaling #2, where signaling #4 may be higher layer signaling.

For example, the network device indicates the SPS resource to the terminal device through RRC signaling, and transmits an activation command of the SPS resource to the terminal device, so that the terminal device can receive or transmit data using the SPS resource in an active state, where the SPS resource in the active state includes time domain resource # 5.

In S320, the network device transmits DCI #4 (i.e., an example of the first DCI) to the terminal device, the DCI #4 instructs the terminal device to receive information #6 (i.e., an example of the second information) on time domain resource #6 (i.e., an example of the second time domain resource), the time domain resource #5 and the time domain resource #6 overlap on time domain resource #7 (i.e., an example of the fourth time domain resource), which is also called that the time domain resource #5 and the time domain resource #6 overlap, and part or all of symbols on the time domain resource #7 are configured as flexible symbols. Accordingly, the terminal device receives DCI #4 from the network device.

It is generally considered that the priority of DCI is higher than that of higher layer signaling, and therefore, when time domain resource #5 overlaps time domain resource #6, the terminal apparatus can cancel the scheduling of signaling #2 and perform the scheduling of DCI #4 in turn.

In S330, the network device transmits DCI #5 (i.e., an example of the second DCI) to the terminal device, where DCI #5 instructs the terminal device to receive information #7 (i.e., an example of the third information) on time domain resource #8 (i.e., an example of the third time domain resource), the start time of DCI #5 is later than the start time of DCI #4, and the start time of time domain resource #8 is earlier than the start time of time domain resource # 6. Accordingly, the terminal device receives DCI #5 transmitted from the network device.

The terminal device receives DCI #5, and since the start time of DCI #5 is later than the start time of DCI #4 and the start time of time domain resource #8 is earlier than the start time of time domain resource #6, referring to the above description of non-sequential transmission, it can be seen that non-sequential transmission occurs in the scheduling between DCI #5 and DCI # 4.

In S340, the terminal device determines whether to transmit information #5 on time domain resource #5 according to whether to receive information #6 on time domain resource # 6.

In view of the occurrence of non-sequential transmission in scheduling between DCI #5 and DCI #4, the terminal apparatus may determine whether to perform scheduling of DCI #5, i.e., determine whether to receive information #6 on time domain resource #6, and according to the determination result, determine whether to resume performing scheduling of signaling #2, i.e., determine whether to transmit information #5 on time domain resource # 5.

Accordingly, at this point, the method 300 may further include S350, and the network device may determine whether to receive the information #5 on the time domain resource #5 according to whether to transmit the information #6 on the time domain resource # 6.

In view of the occurrence of non-sequential transmission in scheduling between DCI #5 and DCI #4, the network device may determine whether to transmit information #6 on time domain resource #6, and determine whether to receive information #5 on time domain resource #5 according to the determination result.

It should be noted that, in S340 and S350, the determination results obtained by the terminal device and the network device respectively are consistent, for example, when the network device determines not to transmit the information #6 on the time domain resource #6, the terminal device may determine not to receive the information #6 on the time domain resource #6 accordingly; when the network device determines to transmit information #6 on time domain resource #6, the terminal device may determine to receive information #6 on time domain resource #6 accordingly.

For example, when the terminal device determines to transmit information #5 on time domain resource #5, the network device may determine to receive information #5 on time domain resource #5 accordingly; when the terminal device determines not to transmit information #5 on time domain resource #5, the network device may accordingly determine not to receive information #5 on time domain resource # 5.

The following takes a terminal device as an execution subject, and details the method 300 for wireless communication provided in the embodiment of the present application in different scenarios are described. When the network device is used as the execution subject, the corresponding technical solutions may refer to the following descriptions in the scenario #1 and the scenario #2, and for brevity, the following descriptions are omitted.

Scene #1 Single Carrier scene

As shown in fig. 9, the terminal device first receives signaling #2 instructing the terminal device to transmit information #5 on time domain resource #5 (e.g., symbol #4 to symbol #11 of slot # (n + 3)); then, the terminal device receives DCI #4 on symbol #1 and symbol #2 of slot # n, and DCI #4 instructs the terminal device to receive information #6 on time domain resource #6 (e.g., symbol #0 to symbol #6 of slot # (n + 3)). Wherein the symbols in slot # (n +3) are configured for flexible symbols.

The terminal device has received DCI #5 on slot #1 and slot #2, and DCI #5 instructs the terminal device to receive information #7 on time domain resource #8 (e.g., slot #0 to slot #13 of slot # (n +2) and slot #0 to slot #3 of slot # (n + 3)).

It can be seen that the resource scheduled by signaling #2 overlaps with the resource scheduled by DCI #4, where the overlapping resources are time domain resource #7 (e.g. symbol #4 to symbol #6 in slot # (n + 3)). At this time, the terminal device usually cancels the scheduling of the execution signaling #2 and performs the scheduling of the DCI # 4.

It can also be seen that non-sequential transmission occurs in the scheduling between DCI #4 and DCI # 5. In this case, the terminal apparatus may further determine whether to perform scheduling of DCI #4, and may determine whether to resume performing scheduling of signaling #2 according to whether to perform scheduling of DCI # 4. For the method for determining whether to perform the scheduling of DCI #4, the terminal device refers to the related description in method 200, and for brevity, will not be described herein again.

When the terminal device determines to cancel the execution of the scheduling of DCI #4, there is no resource overlap with the resource scheduled by signaling #2, and at this time, the terminal device may determine whether to resume the execution of the scheduling of signaling # 2.

The terminal device can determine whether to resume performing the scheduling of signaling #2 by the following several methods.

Method #1

When the terminal device determines to cancel the execution of the scheduling of DCI #4, i.e., the terminal device determines not to receive information #6 on time domain resource #6, it determines to resume the execution of the scheduling of signaling #2, i.e., it determines to transmit information #5 on time domain resource # 5; alternatively, when the terminal device determines to perform scheduling of DCI #4, i.e., the terminal device determines to receive information #6 on time domain resource #6, it is determined not to resume performing scheduling of signaling #2, i.e., not to transmit information #5 on time domain resource # 5.

Method #2

On the basis of method #1, when the terminal device determines to cancel the execution of the scheduling of DCI #4, the terminal device may further determine whether to resume the execution of the scheduling of signaling #2 according to a size relationship between a time interval between an end time of time domain resource #8 and a start time of time domain resource #5 and a time threshold #3 (i.e., an example of a third time threshold), and when the time interval between the end time of time domain resource #8 and the start time of time domain resource #5 is greater than or equal to the time threshold #3, the terminal device determines to resume the execution of the scheduling of signaling # 2.

As shown in stage #3 in fig. 9, the terminal apparatus determines that the end time of the time domain resource #8 is symbol #3 in slot # (n + 3). As shown in phase #1 in fig. 9, the start time of time domain resource #5 is symbol #4 in slot # (n + 3). The time interval between the starting time of the time domain resource #8 and the starting time of the time domain resource #5 is 0 symbols, and the terminal device determines not to perform the scheduling of the signaling #2, assuming that the time threshold #3 is Y symbols (Y is an integer greater than or equal to 1, for example, the value of Y is 1).

It should be noted that the value of Y is related to the radio frequency switching time length, for example, the value of Y is not less than the radio frequency switching time length, or the value of Y is related to a Time Advance (TA), for example, the value of Y is not less than a time duration of TA), or the value of Y is related to TA and the radio frequency switching time length, that is, the value of Y is not less than a sum of TA and the radio frequency switching time length.

The TA is a timing advance when the terminal device sends the information #5, and may be indicated to the terminal device by the network device, and the radio frequency switching time length is a time length required when the terminal device switches the radio frequency, and the time length may be determined based on a protocol.

Method #3

On the basis of method #1, when the terminal device determines to cancel the execution of the scheduling of DCI #4, the terminal device may further determine whether to resume the execution of the scheduling of signaling #2 according to a size relationship between a time interval between an end time of DCI #5 and a start time of time domain resource #5 and a time threshold #4 (i.e., an example of a fourth time threshold), and when the time interval between the end time of DCI #5 and the start time of time domain resource #5 is greater than or equal to the time threshold #4, the terminal device determines to resume the execution of the scheduling of signaling # 2.

As shown in phase #3 in fig. 9, the terminal apparatus determines that the end time of DCI #5 is symbol #1 in slot # (n + 1). As shown in phase #1 in fig. 9, the start time of time domain resource #5 is symbol #4 in slot # (n + 3). The time interval between the ending time of DCI #5 and the starting time of time domain resource #5 is 30 symbols, and assuming that the time threshold #4 is X symbols (X is an integer greater than or equal to 1, for example, X takes a value of 13), the terminal device determines to perform scheduling of signaling # 2.

The value of the time threshold #4 and the terminal equipment enterThe preparation time T during uplink transmission is related to the processing capacity N reported by the terminal equipment₂And (4) correlating. The terminal device may have the following processing capability for PUSCH as shown in the following table:

table 1: for PUSCH processing capability 1

Table 2: for PUSCH processing capability 2

Method #4

On the basis of the method #1, when the terminal device determines to cancel the execution of the scheduling of DCI #4, the terminal device may further determine whether to resume the execution of the scheduling of signaling #2 according to the specific content of the information # 5.

For example, when the information #5 includes any one of data carried on a Physical Random Access Channel (PRACH), data carried on a PUSCH, Uplink Control Information (UCI), and a Sounding Reference Signal (SRS), the terminal apparatus determines to perform scheduling of the signaling # 1.

Scenario #2 multicarrier scenario (illustrated with a scenario comprising two carriers (e.g., carrier #1 and carrier # 2))

As shown in fig. 10, the terminal device receives signaling #2 from the network device on carrier #1, and instructs the terminal device to transmit information #5 on time domain resource #5 (e.g., symbol #4 to symbol #11 of slot # (n + 3)) on carrier # 1. The terminal device has received DCI #4 on symbol #1 and symbol #2 of slot # n on carrier #1, and DCI #4 instructs the terminal device to receive information #6 on time domain resource #6 (e.g., symbol #0 to symbol #6 of slot # (n + 3)) on carrier # 1. Wherein the symbols in slot # (n +3) are configured for flexible symbols.

The terminal device has received DCI #5 on symbol #1 and symbol #2 of slot # (n +1) on carrier #2, and DCI #5 instructs the terminal device to transmit information #7 on time domain resource #8 on carrier #2 (e.g., symbols #0 to #13 of slot # (n +2) and symbols #0 to #3 of slot # (n + 3)).

The above description is only exemplary, and does not limit the embodiments of the present application. In a specific implementation, the signaling #2 and the DCI #4 may be carried on carriers other than the carrier #1, and the DCI #5 may be carried on carriers other than the carrier # 2; further, at least two of the signaling #2, DCI #4, and DCI #5 may be carried on the same carrier or each may be carried on a different carrier.

It can be seen that the time domain resource scheduled by the signaling #2 and the time domain resource scheduled by the DCI #4 overlap, where the overlapping resources are time domain resource #7 (e.g. symbol #4 to symbol #6 in slot # (n + 3)). At this time, the terminal device usually cancels the scheduling of the execution signaling #2 and performs the scheduling of the DCI # 4.

When the terminal device determines to cancel the execution of the scheduling of DCI #4, there is no overlap between the resource scheduled by DCI #4 and the resource scheduled by signaling #2, and at this time, the terminal device may determine whether to resume the execution of the scheduling of signaling # 2.

Method #1

On the basis of the method #1 in the scenario #1, in addition to determining whether to resume performing the scheduling of the signaling #2 according to whether to cancel performing the scheduling of the DCI #4, the terminal device needs to further determine whether the time domain resource #5 on the carrier other than the carrier #1 coincides with the transmission direction of the time domain resource #5 on the carrier #1 after determining to cancel performing the scheduling of the DCI #4, and the terminal device may determine to resume performing the scheduling of the signaling #2 when the time domain resource #5 on the carrier other than the carrier #1 coincides with the transmission direction of the time domain resource #5 on the carrier # 1.

For example, carrier #1 and carrier #2 are two carriers activated by the terminal device for communicating with the network device, and after the terminal device determines to cancel the scheduling of DCI #4 performed on carrier #1, since the signaling #2 instructs the terminal device to transmit information #5 on symbols #4 to #11 of slot # (n +3) on carrier #1, the terminal device needs to determine whether symbols #4 to #11 of slot # (n +3) on carrier #2 other than carrier #1 are configured as uplink transmission resources when determining whether to resume the scheduling of signaling # 2. In other words, the terminal device can resume performing scheduling of the signaling #2 only when the symbols #4 to #11 of the slot # (n +3) on the carrier #2 are not configured as downlink transmission resources.

For example, as shown in fig. 10, the terminal device has received DCI #6 on symbol #12 and symbol #13 of slot # (n +1) on carrier #2, DCI #6 instructs the terminal device to transmit information #8 on slot # (n +3) on carrier #2, and the terminal device may determine that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as downlink transmission resources, and then the terminal device may resume performing scheduling of signaling # 2.

Method #2

On the basis of method #1 of scenario #2, when the terminal device determines that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as downlink transmission resources, the terminal device may further determine whether to resume performing the scheduling of signaling #2 according to a size relationship between a time interval between an end time of time domain resource #8 and a start time of time domain resource #5 and a time threshold #3, and when the time interval between the end time of time domain resource #8 and the start time of time domain resource #5 is greater than or equal to the time threshold #3, the terminal device determines to resume performing the scheduling of signaling # 2. More specifically, reference may be made to the description related to method #2 in scenario # 1.

Method #3

On the basis of method #1 of scenario #2, when the terminal device determines that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as downlink transmission resources, the terminal device may further determine whether to resume performing the scheduling of signaling #2 according to a size relationship between a time interval between an end time of DCI #5 and a start time of time domain resource #5 and a time threshold #4, and when the time interval between the end time of DCI #5 and the start time of time domain resource #5 is greater than or equal to the time threshold #2, the terminal device determines to resume performing the scheduling of signaling # 1. More specifically, reference may be made to the description related to method #3 in scenario # 1.

Method #4

On the basis of method #1 of scenario #2, when the terminal device determines that symbols #6 to #13 of slot # (n +3) on carrier #2 are not configured as downlink transmission resources, the terminal device may further determine whether to resume performing scheduling of signaling #2 according to the specific content of information # 5.

For example, when the information #5 includes any one of data carried on the PRACH, data carried on the PUSCH, UCI, and SRS, the terminal apparatus determines to perform scheduling of the signaling # 1.

It is to be understood that, in order to implement the functions in the above embodiments, the network device and the terminal device include hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software driven hardware depends on the particular application scenario and design constraints imposed on the solution.

Fig. 11 and 12 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the terminal device or the network device in the above method embodiments, so that the beneficial effects of the above method embodiments can also be achieved. In the embodiment of the present application, the communication apparatus may be the terminal device 130 or the terminal device 140 shown in fig. 1, may also be the radio access network device 120 shown in fig. 1, and may also be a module (e.g., a chip) applied to the terminal device or the network device.

As shown in fig. 11, the communication device 400 includes a processing unit 410 and a transceiving unit 420. The communication apparatus 400 is used to implement the functions of the terminal device or the network device in the method embodiments shown in fig. 5 or fig. 8.

When the communication apparatus 400 is used to implement the functions of the terminal device in the method embodiment shown in fig. 5: the transceiving unit 420 is configured to receive a first signaling, where the first signaling indicates that a terminal device receives first information on a first time domain resource; transceiving unit 420 is further configured to receive a first DCI, where the first DCI instructs the terminal device to transmit second information on a second time domain resource, where the first time domain resource and the second time domain resource overlap on a fourth time domain resource, and a part or all of symbols on the fourth time domain resource are configured as flexible symbols; the transceiving unit 420 is further configured to receive a second DCI, where the second DCI instructs the terminal device to transmit third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and a starting time of the third time domain resource is earlier than a starting time of the second time domain resource. The processing unit 410 is configured to determine whether to receive the first information on the first time domain resource according to whether to transmit the second information on the second time domain resource.

When the communication apparatus 400 is used to implement the functions of the network device in the method embodiment shown in fig. 5: the transceiving unit 420 is configured to send a first signaling, where the first signaling indicates that the terminal device receives first information on a first time domain resource; transceiving unit 420 is further configured to transmit a first DCI, where the first DCI instructs the terminal device to transmit second information on a second time domain resource, where the first time domain resource and the second time domain resource overlap on a fourth time domain resource, and a part or all of symbols on the fourth time domain resource are configured as flexible symbols; the transceiving unit 420 is further configured to transmit a second DCI, where the second DCI instructs the terminal device to transmit third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and the starting time of the third time domain resource is earlier than the starting time of the second time domain resource. The processing unit 410 is configured to determine whether to send the first information on the first time domain resource according to whether to receive the second information on the second time domain resource.

When the communication apparatus 400 is used to implement the functions of the terminal device in the method embodiment shown in fig. 8: the transceiving unit 420 is configured to receive a first signaling, where the first signaling indicates that the terminal device transmits first information on a first time domain resource; transceiving unit 420 is further configured to receive a first DCI, where the first DCI instructs the terminal device to receive second information on a second time domain resource, where the first time domain resource and the second time domain resource overlap on a fourth time domain resource, and a part or all of symbols on the fourth time domain resource are configured as flexible symbols; the transceiving unit 420 is further configured to receive a second DCI, where the second DCI is configured to instruct the terminal device to receive third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and a starting time of the third time domain resource is earlier than a starting time of the second time domain resource. The processing unit 410 is configured to determine whether to send the first information on the first time domain resource according to whether to receive the second information on the second time domain resource.

When the communication apparatus 400 is used to implement the functions of the network device in the method embodiment shown in fig. 8: the transceiving unit 420 is configured to send a first signaling, where the first signaling instructs the terminal device to send first information on a first time domain resource; transceiving unit 420 is further configured to transmit a first DCI, where the first DCI instructs the terminal device to receive second information on a second time domain resource, where the first time domain resource and the second time domain resource overlap on a fourth time domain resource, and a part or all of symbols on the fourth time domain resource are configured as flexible symbols; the transceiving unit 420 is further configured to send a second DCI, where the second DCI is used to instruct the terminal device to receive third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and a starting time of the third time domain resource is earlier than a starting time of the second time domain resource. The processing unit 410 is configured to determine whether to receive the first information on the first time domain resource according to whether to transmit the second information on the second time domain resource.

More detailed descriptions about the processing unit 410 and the transceiver unit 420 can be directly obtained by referring to the related descriptions in the method embodiment shown in fig. 5 or fig. 8, which are not repeated herein.

As shown in fig. 12, the communication device 500 includes a processor 510 and an interface circuit 520. Processor 510 and interface circuit 520 are coupled to each other. It is understood that the interface circuit 520 may be a transceiver or an input-output interface. Optionally, the communication device 500 may further include a memory 530 for storing instructions executed by the processor 510 or for storing input data required by the processor 510 to execute the instructions or for storing data generated by the processor 510 after executing the instructions.

When the communication device 500 is used to implement the method shown in fig. 5 or fig. 8, the processor 510 is configured to perform the functions of the processing unit 410, and the interface circuit 520 is configured to perform the functions of the transceiving unit 420.

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

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

It is understood that the Processor in the embodiments of the present Application may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read-Only Memory (ROM), Programmable ROM (PROM), Erasable PROM (EPROM), Electrically EPROM (EEPROM), registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a network device or a terminal device. Of course, the processor and the storage medium may reside as discrete components in a network device or a terminal device.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer program or instructions may be stored in or transmitted over a computer-readable storage medium. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or an optical medium, such as a DVD; it may also be a semiconductor medium, such as a Solid State Disk (SSD).

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

In the present application, "at least one" means one or more, "a plurality" means two or more. "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, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

Claims

1. A method of communication, comprising:

receiving a first signaling, wherein the first signaling indicates that a terminal device receives first information on a first time domain resource;

receiving first Downlink Control Information (DCI), wherein the first DCI instructs the terminal equipment to transmit second information on a second time domain resource, the first time domain resource and the second time domain resource are overlapped on a fourth time domain resource, and part or all symbols on the fourth time domain resource are configured to be flexible symbols;

receiving second DCI, wherein the second DCI indicates the terminal equipment to send third information on a third time domain resource, the starting time of the second DCI is later than that of the first DCI, and the starting time of the third time domain resource is earlier than that of the second time domain resource;

determining whether to transmit the second information on the second time domain resource according to the indication information of the first DCI and the second DCI;

determining whether to receive the first information on the first time domain resource according to whether to transmit the second information on the second time domain resource.

2. The method of claim 1, wherein a time interval between an end time of the third time domain resource and a start time of the first time domain resource is greater than or equal to a first time threshold.

3. The method of claim 1 or 2, wherein the determining whether to receive the first information on the first time domain resource according to whether to transmit the second information on the second time domain resource comprises:

receiving the first information on the first time domain resource when the second information is not transmitted on the second time domain resource; or the like, or, alternatively,

when the second information is transmitted on the second time domain resource, the first information is not received on the first time domain resource.

4. The method of claim 3, wherein receiving the first information on the first time domain resource when the second information is not transmitted on the second time domain resource comprises:

and when the second information is not sent on the second time domain resource and when the first time domain resource of the second carrier is not used for uplink transmission, receiving the first information on the first time domain resource of the first carrier, wherein the first carrier and the second carrier are two carriers activated by the terminal equipment and used for communicating with the network equipment.

5. The method of claim 1 or 2, wherein a time interval between an end time of the second DCI and a start time of the first time domain resource is greater than or equal to a second time threshold.

6. The method according to claim 1 or 2, wherein the first information is a channel state information reference signal, CSI-RS, or data carried on a physical downlink shared channel, PDSCH.

7. A method of communication, comprising:

receiving a first signaling, wherein the first signaling indicates a terminal device to send first information on a first time domain resource;

receiving first Downlink Control Information (DCI), wherein the first DCI indicates that the terminal equipment receives second information on a second time domain resource, the first time domain resource and the second time domain resource are overlapped on a fourth time domain resource, and part or all symbols on the fourth time domain resource are configured to be flexible symbols;

receiving second DCI, where the second DCI is used to instruct the terminal device to receive third information on a third time domain resource, a starting time of the second DCI is later than a starting time of the first DCI, and a starting time of the third time domain resource is earlier than a starting time of the second time domain resource;

determining whether to receive the second information on the second time domain resource according to the indication information of the first DCI and the second DCI;

determining whether to transmit the first information on the first time domain resource according to whether to receive the second information on the second time domain resource.

8. The method of claim 7, wherein a time interval between the ending time of the third time domain resource and the starting time of the first time domain resource is greater than or equal to a preset third time threshold.

9. The method of claim 7 or 8, wherein the determining whether to send the first information on the first time domain resource according to whether to receive the second information on the second time domain resource comprises:

determining to transmit the first information on the first time domain resource when the second information is not received on the second time domain resource; or the like, or, alternatively,

determining not to transmit the first information on the first time domain resource when the second information is received on the second time domain resource.

10. The method of claim 9, wherein determining that the first information is transmitted on the first time domain resource when the second information is not transmitted on the second time domain resource comprises:

when the first time domain resource of the second carrier is not used for downlink transmission, determining to send the first information on the first time domain resource of the first carrier, where the first carrier and the second carrier are any two carriers of at least two carriers.

11. The method of claim 7 or 8, wherein a time interval between the ending time of the second DCI and the starting time of the first time domain resource is greater than or equal to a preset fourth time threshold.

12. The method according to claim 7 or 8, wherein the first information comprises uplink control information, UCI.

13. A communications apparatus comprising means for performing the method of any of claims 1-6, or 7-12.

14. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to other communications devices than the communications device, the processor being arranged to implement the method of any one of claims 1 to 6, or 7 to 12 by means of logic circuitry or executing code instructions.

15. A computer-readable storage medium, in which a computer program or instructions is stored which, when executed by a communication device, implements the method of any one of claims 1 to 6, or 7 to 12.