CN116686248A

CN116686248A - Communication method and device

Info

Publication number: CN116686248A
Application number: CN202180089081.5A
Authority: CN
Inventors: 苏桐; 马蕊香; 官磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2023-09-01
Also published as: WO2022151398A1

Abstract

The application provides a communication method and a device, which can solve the problems of low data transmission reliability and low transmission efficiency of an SPS PDSCH so as to improve communication efficiency, and can be applied to a 4G system, a 5G system and future communication systems, such as a 6G system. The method comprises the following steps: and determining a first uplink resource. The first uplink resource carries feedback information corresponding to the SPS PDSCH. If the time domain symbol occupied by the first uplink resource includes: and determining a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated, and transmitting the feedback information on the second uplink resource. Therefore, when the first uplink resource is not transmitted, the feedback information can be delayed to be transmitted to the second uplink resource, so that the network equipment can determine whether to retransmit the data according to the feedback information, the probability of data loss is reduced, the data transmission reliability is improved, the data retransmission times can be reduced, and the transmission efficiency is improved.

Description

Communication method and device

Technical Field

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

Background

The fifth generation (5th generation,5G) mobile communication system has higher requirements for data transmission rate, data transmission reliability, transmission delay, and power consumption than the previous generation mobile communication system. Taking the ultra-reliable and low-latency communication (URLLC) service of 5G as an example, the requirements of the service include: the reliability of data transmission reaches 99.999%, the transmission delay is less than 1 millisecond (ms), and the instruction overhead is reduced as much as possible. Therefore, how to improve the reliability of data transmission, reduce the transmission delay, and reduce the signaling overhead, thereby reducing the power consumption is a problem to be solved.

Currently, data may be transmitted through a semi-persistent scheduling (semi-persistent scheduling, SPS) physical downlink shared channel (physical downlink shared channel, PDSCH), but feedback information corresponding to the semi-persistent scheduling physical downlink shared channel (hereinafter, abbreviated as SPS PDSCH) may be canceled (drop) from being transmitted, and the network device does not know whether the SPS PDSCH is successfully received. Therefore, if the network device directly retransmits the SPS PDSCH, resources are wasted, resulting in low transmission efficiency, and if the network device does not retransmit the SPS PDSCH, data is lost, resulting in low data transmission reliability.

Disclosure of Invention

The embodiment of the application provides a communication method and a device, which can solve the problems of low reliability and low transmission efficiency of SPS PDSCH data transmission so as to improve communication efficiency.

In order to achieve the above purpose, the application adopts the following technical scheme:

in a first aspect, a communication method is provided. The communication method can be applied to the terminal device, and comprises the following steps: and determining a first uplink resource. The first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to a semi-static scheduling physical downlink shared channel. If the time domain symbol (symbol) occupied by the first uplink resource includes: a downlink symbol (dl symbol) and/or a flexible symbol (flexible symbol) for uplink transmission is not indicated, a second time unit and a second uplink resource are determined. The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource. And sending the first feedback information on the second uplink resource.

Based on the communication method of the first aspect, if the first uplink resource is canceled to be transmitted, for example, the time domain symbol occupied by the first uplink resource includes: and determining a second time unit and a second uplink resource in the resources after the time domain starting position of the first uplink resource by the terminal equipment, and sending the first feedback information on the second uplink resource. Thus, when the feedback information corresponding to the SPS PDSCH is not transmitted on the first uplink resource, the terminal device may delay the feedback information to the second uplink resource for transmission. Therefore, the network equipment can determine whether the SPS PDSCH is successfully received or not according to the feedback information and determine whether to retransmit the data, so that the probability of data loss is reduced, the data transmission reliability is improved, the number of data retransmission times can be reduced, resources are saved, the transmission efficiency is improved, and the communication efficiency is further improved.

In one possible embodiment, the second time unit may be located after the first time unit, or the second time unit and the first time unit may be the same time unit. Therefore, the terminal equipment can send the first feedback information in the first time unit or in the time unit after the first time unit, and the flexibility of the terminal equipment for sending the first feedback information can be improved.

Alternatively (hereinafter simply referred to as mode 1), the relative position of the second uplink resource in the second time unit may be the same as the relative position of the first uplink resource in the first time unit. In this way, the time domain range of the second uplink resource exists, and the time domain range can be reduced from all time domains after the time domain starting position of the first uplink resource to part of symbols in each time unit after the time domain starting position of the first uplink resource, that is, the terminal equipment can determine the second time unit and the second uplink resource in a smaller time domain range, so that the calculation amount of the terminal equipment can be reduced, and the power consumption can be saved.

Alternatively (hereinafter simply referred to as mode 2), the time domain width of the second uplink resource may be equal to the time domain width of the first uplink resource, and/or the frequency domain width of the second uplink resource may be equal to the frequency domain width of the first uplink resource. In other words, the size of the second uplink resource is equal to the size of the first uplink resource. In this way, the time domain range of the second uplink resource exists, and the time domain range can be reduced from all time domains after the time domain starting position of the first uplink resource to a part of time domains after the time domain starting position of the first uplink resource, wherein the part of time domains are time domains including available uplink resources, and the size of the available uplink resources can be equal to that of the first uplink resource, that is, the terminal equipment can determine the second time unit and the second uplink resource in a smaller time domain range, so that the calculation amount of the terminal equipment can be reduced, and the power consumption can be saved.

The above embodiments 1 and 2 may be implemented independently or in combination. The embodiment of the combination of embodiment 1 and embodiment 2 may include: the relative position of the second uplink resource in the second time unit is the same as the relative position of the first uplink resource in the first time unit, the time domain width of the second uplink resource is equal to the time domain width of the first uplink resource, and/or the frequency domain width of the second uplink resource is equal to the frequency domain width of the first uplink resource. In this way, the time domain range of the second uplink resource exists, and the partial symbol in each time unit of the partial time domain can be reduced from all time domains after the time domain starting position of the first uplink resource, that is, the terminal device can determine the second time unit and the second uplink resource in a smaller time domain range, so that the calculation amount of the terminal device can be reduced, and the power consumption can be saved.

In one possible design, the determining the second time unit and the second uplink resource may include: a second time unit is determined. The second time unit may be a candidate time unit with a forefront time domain position in the one or more candidate time units, the time domain starting position of each candidate time unit may be no earlier than the time domain starting position of the first time unit, and each candidate time unit may satisfy: a first condition, and/or a second condition. Wherein, the first condition may be: the available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, a maximum value of a codebook bit interval corresponding to the available SPS feedback resources may be greater than or equal to a feedback bit number, and the feedback bit number may be a sum of a codebook bit number of SPS feedback information in the candidate time unit and a codebook bit number of the first feedback information. The second condition may be: there is an upstream signal, which may include upstream data or dynamic feedback information. And determining a second uplink resource in a second time unit. In this way, when the terminal device determines the second uplink resource in the second time unit, the first feedback information can be carried through the available SPS feedback resource existing in the time unit, or the first feedback information can be carried through the resource carrying the uplink signal existing in the time unit, that is, one feedback resource can be used to carry a plurality of feedback information, so that the interaction times of the terminal device and the network device can be reduced, the signaling overhead is reduced, and the communication efficiency is improved.

Optionally, determining the second uplink resource in the second time unit may include: and if the second time unit meets the first condition and does not meet the second condition, determining that the available SPS feedback resource in the second time unit is a second uplink resource. Or if the second time unit meets the second condition, determining the resource carrying the uplink signal in the second time unit as the second uplink resource. In this way, the first feedback information can be preferentially carried by the existing resources carrying the uplink signals in the time unit, and because the resources carrying the uplink signals can be dynamic feedback resources (such as feedback resources corresponding to the dynamically scheduled PDSCH), and compared with available SPS feedback resources, the quality of the channel occupied by the dynamic feedback resources is often better, and the feedback success rate is higher, the first feedback information can be preferentially carried by the resources carrying the uplink signals, so that the data transmission reliability can be improved, the transmission delay can be reduced, and the communication efficiency can be improved.

Optionally, the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit may include a sum of codebook bit numbers of the SPS feedback information and the first feedback information in the candidate time unit, or the minimum value of the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit may be greater than the sum of codebook bit numbers of the SPS feedback information and the first feedback information in the candidate time unit. In other words, the available SPS feedback resources can carry not only the SPS feedback information in the candidate time unit but also the first feedback information, so that a new feedback resource can be used to carry a plurality of feedback information, the interaction times between the terminal device and the network device are reduced, and the signaling overhead is reduced, so as to improve the communication efficiency.

In a possible implementation manner, after determining the second time unit and the second uplink resource, the communication method in the first aspect may further include: if the combining and sending conditions are met, determining a third uplink resource; the third uplink resource carries the first feedback information and the second feedback information. The combined sending condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information. And sending the first feedback information and the second feedback information on the third uplink resource. Therefore, one feedback resource can be used for bearing a plurality of feedback information, the interaction times of the terminal equipment and the network equipment are reduced, the signaling overhead is reduced, resource conflict can be avoided in a resource multiplexing mode, the number of times that the first feedback information is canceled to be sent is reduced, and therefore the data transmission reliability and the transmission time delay can be improved, and the communication efficiency is improved.

In a second aspect, a communication method is provided. The communication method can be applied to a network device, and comprises the following steps: and determining a first uplink resource. The first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH. If the time domain symbol occupied by the first uplink resource includes: and determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated. The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource. And receiving the first feedback information on the second uplink resource.

In one possible embodiment, the second time unit may be located after the first time unit, or the second time unit and the first time unit may be the same time unit.

Optionally, the relative position of the second uplink resource in the second time unit may be the same as the relative position of the first uplink resource in the first time unit.

In one possible design, the time domain width of the second uplink resource may be equal to the time domain width of the first uplink resource, and/or the frequency domain width of the second uplink resource may be equal to the frequency domain width of the first uplink resource.

In one possible design, the determining the second time unit and the second uplink resource may include: a second time unit is determined. The second time unit may be a candidate time unit with a forefront time domain position in the one or more candidate time units, the time domain starting position of each candidate time unit may be no earlier than the time domain starting position of the first time unit, and each candidate time unit may satisfy: a first condition, and/or a second condition. Wherein, the first condition may be: the available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, a maximum value of a codebook bit interval corresponding to the available SPS feedback resources may be greater than or equal to a feedback bit number, and the feedback bit number may be a sum of a codebook bit number of SPS feedback information in the candidate time unit and a codebook bit number of the first feedback information. The second condition may be: there is an upstream signal, which may include upstream data or dynamic feedback information. And determining a second uplink resource in a second time unit.

Optionally, determining the second uplink resource in the second time unit may include: and if the second time unit meets the first condition and does not meet the second condition, determining that the available SPS feedback resource in the second time unit is a second uplink resource. Or if the second time unit meets the second condition, determining the resource carrying the uplink signal in the second time unit as the second uplink resource.

Optionally, the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit may include a sum of codebook bit numbers of the SPS feedback information and the first feedback information in the candidate time unit, or the minimum value of the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit may be greater than the sum of codebook bit numbers of the SPS feedback information and the first feedback information in the candidate time unit.

In a possible design, the communication method of the second aspect may further include: if the combining receiving condition is met, determining a third uplink resource; the third uplink resource carries the first feedback information and the second feedback information. Wherein, the combined receiving condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information. And receiving the first feedback information and the second feedback information on the third uplink resource.

In addition, the technical effects of the communication method described in the second aspect may refer to the technical effects of the communication method described in the first aspect, and are not described herein.

In a third aspect, a communication device is provided. The communication device includes: the device comprises a processing module and a receiving and transmitting module. The processing module is used for determining a first uplink resource. The first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH. The processing module is further configured to, if the time domain symbol occupied by the first uplink resource includes: and determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated. The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource. And the receiving and transmitting module is used for transmitting the first feedback information on the second uplink resource.

Alternatively, the relative position of the second uplink resource in the second time unit may be the same as the relative position of the first uplink resource in the first time unit.

Alternatively, the time domain width of the second uplink resource may be equal to the time domain width of the first uplink resource, and/or the frequency domain width of the second uplink resource may be equal to the frequency domain width of the first uplink resource.

In one possible embodiment, the processing module can also be used to determine the second time unit. The second time unit may be a candidate time unit with a forefront time domain position in one or more candidate time units, the time domain starting position of each candidate time unit may not be earlier than the time domain starting position of the first time unit, and each candidate time unit may satisfy: a first condition, and/or a second condition. Wherein, the first condition may be: the available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, a maximum value of a codebook bit interval corresponding to the available SPS feedback resources may be greater than or equal to a feedback bit number, and the feedback bit number may be a sum of a codebook bit number of SPS feedback information in the candidate time unit and a codebook bit number of the first feedback information. The second condition may be: there is an upstream signal, which may include upstream data or dynamic feedback information. The processing module may be further configured to determine a second uplink resource in the second time unit.

Optionally, the processing module may be further configured to determine that the available SPS feedback resource in the second time unit is the second uplink resource if the second time unit meets the first condition and does not meet the second condition. Or, the processing module may be further configured to determine, if the second time unit meets the second condition, that the resource carrying the uplink signal in the second time unit is a second uplink resource.

In a possible design, the processing module may be further configured to determine the third uplink resource if the combined sending condition is met. The third uplink resource may carry the first feedback information and the second feedback information. The combined sending condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information. The transceiver module may be further configured to send the first feedback information and the second feedback information on the third uplink resource.

Alternatively, the transceiver module may include a receiving module and a transmitting module. The receiving module is used for realizing the receiving function of the communication device.

Optionally, the communication device according to the third aspect may further include a storage module, where the storage module stores a program or instructions. The program or instructions, when executed by the processing module, enable the communication device to perform the communication method of the first aspect.

The communication device according to the third aspect may be a terminal device, a chip (system) or other components or assemblies that may be provided in the terminal device, or a device including the terminal device, which is not limited in the present application.

Further, the technical effects of the communication apparatus according to the third aspect may refer to the technical effects of the communication method according to the first aspect, and will not be described herein.

In a fourth aspect, a communication device is provided. The communication device includes: the device comprises a processing module and a receiving and transmitting module. The processing module is used for determining a first uplink resource. The first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH. The processing module is further configured to, if the time domain symbol occupied by the first uplink resource includes: and determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated. The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource. And the receiving and transmitting module is used for receiving the first feedback information on the second uplink resource.

In a possible design, the processing module may be further configured to determine the third uplink resource if the combining receiving condition is met. The third uplink resource may carry the first feedback information and the second feedback information. Wherein, the combined receiving condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information. The transceiver module may be further configured to receive the first feedback information and the second feedback information on the third uplink resource.

Optionally, the communication device according to the fourth aspect may further include a storage module, where the storage module stores a program or instructions. The program or instructions, when executed by the processing module, enable the communication device to perform the communication method of the second aspect.

The communication apparatus according to the fourth aspect may be a network device (such as an access network device or a core network device), or may be a chip (system) or other components or assemblies that may be disposed in the network device, or may be an apparatus including the network device, which is not limited in this aspect of the present application.

Further, the technical effects of the communication apparatus according to the fourth aspect may refer to the technical effects of the communication method according to the second aspect, and will not be described herein.

In a fifth aspect, a communication device is provided. The communication device is configured to perform the communication method described in any implementation manner of the first aspect and the second aspect.

In the present application, the communication apparatus according to the fifth aspect may be the terminal device according to the first aspect or the network device according to the second aspect, or may be a chip (system) or other parts or components provided in the terminal device or the network device, or may be an apparatus including the terminal device or the network device.

It should be understood that the communication apparatus according to the fifth aspect includes a corresponding module, unit, or means (means) for implementing the communication method according to any one of the first aspect and the second aspect, where the module, unit, or means may be implemented by hardware, software, or implemented by hardware executing corresponding software. The hardware or software comprises one or more modules or units for performing the functions involved in the communication methods described above.

In addition, the technical effects of the communication device described in the fifth aspect may refer to the technical effects of the communication method described in any one of the first aspect and the second aspect, and are not described herein.

In a sixth aspect, a communication device is provided. The communication device includes: a processor, configured to perform the communication method according to any one of the possible implementation manners of the first aspect and the second aspect.

In a possible implementation manner, the communication device according to the sixth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the sixth aspect to communicate with other communication devices.

In a possible implementation manner, the communication device according to the sixth aspect may further include a memory. The memory may be integral with the processor or may be separate. The memory may be used for storing computer programs and/or data related to the communication method according to any one of the first aspect and the second aspect.

In the present application, the communication apparatus according to the sixth aspect may be the terminal device according to the first aspect, or the network device according to the second aspect, or may be a chip (system) or other part or component provided in the terminal device or the network device, or an apparatus including the terminal device or the network device.

In addition, the technical effects of the communication device described in the sixth aspect may refer to the technical effects of the communication method described in any implementation manner of the first aspect and the second aspect, which are not described herein.

In a seventh aspect, a communication device is provided. The communication device includes: a processor coupled to the memory, the processor configured to execute a computer program stored in the memory, to cause the communication device to perform the communication method according to any one of the possible implementation manners of the first aspect and the second aspect.

In a possible implementation manner, the communication device according to the seventh aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the seventh aspect to communicate with other communication devices.

In the present application, the communication apparatus according to the seventh aspect may be the terminal device according to the first aspect, or the network device according to the second aspect, or may be a chip (system) or other part or component provided in the terminal device or the network device, or an apparatus including the terminal device or the network device.

In addition, the technical effects of the communication device according to the seventh aspect may refer to the technical effects of the communication method according to any implementation manner of the first aspect and the second aspect, which are not described herein.

In an eighth aspect, a communication device is provided. The communication device includes: comprising the following steps: a processor and an interface circuit. The interface circuit is used for receiving the code instruction and transmitting the code instruction to the processor. The processor is configured to execute the code instruction to perform the communication method according to any implementation manner of the first aspect and the second aspect.

In a possible implementation manner, the communication device according to the eighth aspect may further include a memory. The memory may be integral with the processor or may be separate. The memory may be used for storing computer programs and/or data related to the communication method according to any one of the first aspect and the second aspect.

In the present application, the communication apparatus according to the eighth aspect may be the terminal device according to the first aspect, or the network device according to the second aspect, or may be a chip (system) or other part or component provided in the terminal device or the network device, or an apparatus including the terminal device or the network device.

In addition, the technical effects of the communication device according to the eighth aspect may refer to the technical effects of the communication method according to any implementation manner of the first aspect and the second aspect, which are not described herein.

In a ninth aspect, a communication apparatus is provided. The communication device includes: comprising the following steps: the communication device comprises a processor and a transceiver, wherein the transceiver is used for carrying out information interaction between the communication device and other communication devices, and the processor executes program instructions for executing the communication method according to any implementation manner of the first aspect and the second aspect.

In a possible implementation manner, the communication device according to the ninth aspect may further include a memory. The memory may be integral with the processor or may be separate. The memory may be used for storing computer programs and/or data related to the communication method according to any one of the first aspect and the second aspect.

In the present application, the communication apparatus according to the ninth aspect may be the terminal device according to the first aspect, or the network device according to the second aspect, or may be a chip (system) or other part or component provided in the terminal device or the network device, or an apparatus including the terminal device or the network device.

In addition, the technical effects of the communication device described in the ninth aspect may refer to the technical effects of the communication method described in any implementation manner of the first aspect and the second aspect, which are not described herein.

In a tenth aspect, a processor is provided. Wherein the processor is configured to perform the communication method described in any one of possible implementation manners of the first aspect and the second aspect.

In an eleventh aspect, a communication system is provided. The communication system includes one or more terminal devices, and one or more network devices.

In a twelfth aspect, there is provided a computer-readable storage medium comprising: computer programs or instructions; the computer program or instructions, when run on a computer, cause the computer to perform the communication method as described in any one of the possible implementations of the first and second aspects.

In a thirteenth aspect, a computer program product is provided, comprising a computer program or instructions which, when run on a computer, cause the computer to perform the communication method according to any one of the possible implementation manners of the first and second aspects.

Drawings

Fig. 1 is a schematic diagram of a time domain of SPS PDSCH transmission data according to an embodiment of the present application;

Fig. 2 is a schematic diagram of resource multiplexing according to an embodiment of the present application;

fig. 3 is a schematic diagram of a communication system to which the communication method according to the embodiment of the present application is applicable;

fig. 4 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 5 is a second schematic time domain diagram of SPS PDSCH transmission data according to an embodiment of the present application;

fig. 6 is a time domain diagram III of SPS PDSCH transmission data according to an embodiment of the present application;

fig. 7 is a time domain diagram of SPS PDSCH transmission data according to an embodiment of the present application;

fig. 8 is a schematic diagram of a time domain of SPS PDSCH transmission data according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 10 is a schematic diagram of a communication device according to an embodiment of the present application.

Detailed Description

First, the embodiments of the present application will be briefly described with respect to possible technical terms.

1, slot (slot)

There are various time units in the new air interface (NR) of 5G, including: frames, subframes, slots, and symbols. One frame has a time length of 10 milliseconds (ms) and includes 10 subframes, each of which may have a time length of 1ms and one subframe may include one or more slots. One slot includes 12 symbols in the case of an extended cyclic prefix (extended cyclic prefix, ECP) and 14 symbols in the case of a normal cyclic prefix (normal cyclic prefix, NCP). Wherein the symbols are divided into: uplink symbol (uplink symbol), downlink symbol (downlink symbol), and flexible symbol (flexible symbol). The symbols here may be orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols.

The NR supports flexible configuration of the frame structure, i.e. it can flexibly configure which symbols are uplink symbols, which symbols are downlink symbols, and which symbols are flexible symbols in a slot. The manner of configuration may include: semi-static (SPS) configuration or dynamic (dynamic) configuration. In the semi-static configuration mode, the uplink symbol is called a semi-static uplink symbol, the downlink symbol is called a semi-static downlink symbol, and the flexible symbol is called a semi-static flexible symbol. In the dynamic configuration mode, the uplink symbol is called a dynamic uplink symbol, the downlink symbol is called a dynamic downlink symbol, and the flexible symbol is called a dynamic flexible symbol. In addition, the specific implementation process of the semi-static configuration and the dynamic configuration may refer to the prior art, which is not described herein.

The flexible symbols may be modified to uplink symbols or downlink symbols, the flexible symbols modified to uplink symbols may be referred to as flexible symbols indicating use for uplink transmission, and the flexible symbols modified to downlink symbols may be referred to as flexible symbols indicating use for downlink transmission. The specific implementation process of modifying the flexible symbol into the uplink symbol or the downlink symbol may refer to the prior art, and will not be described herein.

Uplink symbols or flexible symbols indicating use for uplink transmission may be used for uplink transmission, and downlink symbols or flexible symbols indicating use for downlink transmission may be used for downlink transmission. In other words, in downlink symbols, and/or flexible symbols not indicated for uplink transmission cannot be used for uplink transmission. Wherein the flexible symbols not indicated for uplink transmission include: dynamic flexible symbols, semi-static flexible symbols, and flexible symbols indicating use for downlink transmission.

2，SPS PDSCH

The data can be transmitted between the network equipment and the terminal equipment through SPS PDSCH, and the specific steps are as follows:

step 1, a network device sends configuration information to a terminal device, and the terminal device receives the configuration information from the network device.

Wherein, the configuration information is used for indicating: a transmission period of the SPS PDSCH, a resource for carrying feedback information corresponding to the SPS PDSCH, and the like. Here, the feedback information corresponding to the SPS PDSCH refers to Acknowledgement (ACK) information or Negative Acknowledgement (NACK) information of the SPS PDSCH, and the feedback information corresponding to the SPS PDSCH may be included in a hybrid automatic repeat request (hybrid automatic repeat request acknowledgement, HARQ-ACK) codebook. The resource that carries feedback information corresponding to the SPS PDSCH may be a physical uplink control channel (physical uplink control channel, PUCCH). In addition, the feedback information corresponding to the SPS PDSCH may be referred to as SPS feedback information, and the resource that carries the feedback information corresponding to the SPS PDSCH may be referred to as SPS feedback resource.

And 2, the network equipment sends the activation information to the terminal equipment, and the terminal equipment receives the activation information from the network equipment.

Wherein the activation information may be used to indicate: the time domain position of the SPS PDSCH and the time domain position of the feedback information of the SPS PDSCH. In addition, the activation information may be carried on a physical downlink control channel (physical downlink control channel, PDCCH).

Specifically, the above activation information may be implemented through DCI, which is implemented as follows:

the index value in the time domain resource table is indicated by DCI according to rule 91, correction 27.01.2021, and thus the time domain position where the SPS PDSCH is located is indicated. For example, referring to table 1, table 1 is a table of correspondence between index values, K0 and (S, L), i.e. a time domain resource table. Where K0 represents the number of slots in the interval between PDCCH carrying DCI and SPS PDSCH, and (S, L) represents symbols S to s+l where SPS PDSCH is located in the slot. Assuming that the DCI indicates that the index value in the time domain resource table has a value of 1 (i.e., k0=1, s=1, l=2) and the PDCCH carrying the DCI is located in slot n, the SPS PDSCH having the index value of 1 is located in symbols 1 to 2 of slot n+1.

TABLE 1

Index	K0	(S，L)
0	1	(2，4)
1	1	(1，2)
2	2	(3，4)
3	2	(0，7)

The above-described time domain resource table may be predefined by a protocol or configured by higher layer signaling or physical layer signaling, in addition, according to rules 91, correct 27.01.2021.

Specifically, the time domain position where the feedback information of the SPS PDSCH is located may be indicated by DCI. For example, the DCI carries indication information for indicating a value of K1 in a K1 set, where the value of K1 indicates the number of slots between SPS PDSCH and feedback information of SPS PDSCH. Wherein the K1 set may be a set configured through higher layer signaling. As shown in fig. 1, assuming that the 1 st SPS PDSCH is in slot 2 and k1=2, the feedback information of the SPS PDSCH is located in slot 4.

And step 3, the network equipment periodically transmits the SPS PDSCH to the terminal equipment based on the transmission period of the SPS PDSCH and the activation information. The terminal device periodically receives the SPS PDSCH from the network device based on the transmission period of the SPS PDSCH and the activation information.

And 4, the terminal equipment determines feedback information corresponding to each SPS PDSCH and periodically sends the feedback information to the network equipment based on the transmission period and the activation information of the SPS PDSCH. The network device periodically receives feedback information from the terminal device based on a transmission period of the SPS PDSCH.

The determining, by the terminal device, feedback information corresponding to the SPS PDSCH may include: firstly, determining a feedback time unit; then, generating an HARQ-ACK codebook according to feedback information corresponding to the SPS PDSCH; finally, determining the PUCCH resource carrying the HARQ-ACK codebook. As shown in fig. 1, assuming that the SPS PDSCH is in time slot 2 and k1=2, the feedback time unit may be determined to be time slot 4 first, then an HARQ-ACK codebook is generated according to feedback information corresponding to the SPS PDSCH, and finally PUCCH resources carrying the HARQ-ACK codebook are determined in the PUCCH set of time slot 4 according to the size of the HARQ-ACK codebook. Of course, the specific embodiment of determining the feedback information corresponding to the SPS PDSCH by the terminal device may refer to the prior art, and will not be described herein.

The following describes the above steps 3 and 4 with reference to fig. 1.

As shown in fig. 1, assuming that the transmission period of the SPS PDSCH is 1 slot, the DCI indicates index=1, k1=2, and the PDCCH carrying the DCI is located in slot 1, then the network device periodically transmits the SPS PDSCH to the terminal device at symbol 1, symbol 2, … of slot 2, symbol 1, symbol 2 of slot 3, and slot n, respectively. Correspondingly, the terminal device periodically receives the SPS PDSCH from the network device in symbol 1, symbol 2, … of slot 2, symbol 1, symbol 2 of slot 3, and symbol 2 of slot n, respectively. Then, the terminal device periodically transmits feedback information to the network device in time slot 3, time slot 4, …, and time slot n, respectively. Correspondingly, the network device periodically receives feedback information from the terminal device in time slot 3, time slot 4, …, and time slot n, respectively. Wherein n is a positive integer.

In addition, the 1 st SPS PDSCH may be referred to as SPS PDSCH with scheduling information, and SPS PDSCH after the 1 st SPS PDSCH may be referred to as SPS PDSCH without scheduling information.

Based on the above steps 1-4, in the process of transmitting data between the network device and the terminal device through the SPS PDSCH, after the configuration information and the activation information are determined, the terminal device may periodically receive a plurality of SPS PDSCH, and may periodically send feedback information corresponding to the plurality of SPS PDSCH to the network device.

The above steps 1 to 4 are only exemplary illustrations. For a specific implementation of data transmission between the network device and the terminal device via the semi-static scheduling physical downlink shared channel, reference may be made to corresponding prior art specifications.

3 multiplexing of resources

If feedback information corresponding to two data services exists in one time unit, or time domain resources carrying the feedback information corresponding to the two data services overlap, the terminal device can multiplex and send the feedback information corresponding to the two data services. As shown in fig. 2, assuming that the HARQ-ACK codebook corresponding to PDSCH1 is transmitted on PUCCH1, the HARQ-ACK codebook corresponding to PDSCH2 is transmitted on PUCCH2, and PUCCH1 and PUCCH2 are located in the same slot, the two codebooks may be recombined into a new codebook, and a new PUCCH is determined to carry the new codebook in the slot. For example, it is determined that PUCCH3 carries the HARQ-ACK codebook of PDSCH1 and the HARQ-ACK codebook of PDSCH 2. The time domain position of PUCCH3 may or may not overlap with the time domain position of PUCCH1 and the time domain position of PUCCH 2.

In carrying out the embodiments of the present application, the present inventors found that:

when data is transmitted between the network device and the terminal device through the SPS PDSCH, feedback information corresponding to the SPS PDSCH with scheduling information and feedback information corresponding to the SPS PDSCH without scheduling information are indicated by K1, that is, the time domain position of the feedback information corresponding to each SPS PDSCH without scheduling information is fixed. Feedback information corresponding to SPS PDSCH without scheduling information is not transmitted when several cases occur:

In case 1, the resource carrying feedback information corresponding to SPS PDSCH is located in a semi-static downlink symbol.

In case 2, the resource carrying feedback information corresponding to SPS PDSCH is located in the dynamic downlink symbol.

In case 3, the resource carrying feedback information corresponding to the SPS PDSCH is located in a flexible symbol that is not indicated for uplink transmission.

In other words, if the resource carrying feedback information corresponding to SPS PDSCH without scheduling information is located: downlink symbols and/or flexible symbols not indicated for uplink transmission are not transmitted. When feedback information corresponding to the SPS PDSCH without scheduling information is not transmitted, the network device does not know whether the SPS PDSCH is successfully received. Therefore, if the network device retransmits the SPS PDSCH, resources are wasted, transmission efficiency is low, and if the network device does not retransmit the SPS PDSCH, data is lost, and data transmission reliability is low.

In addition, in practical applications, the above cases 1 to 3 frequently occur, that is, feedback information corresponding to the SPS PDSCH without scheduling information is frequently not transmitted, which may cause the network device to frequently retransmit data, thereby resulting in high packet loss rate, low data transmission reliability, and large transmission delay.

In order to solve the technical problems, embodiments of the present application provide a communication method and apparatus, so as to improve data transmission reliability, reduce transmission delay, and improve performance of a communication system. The above-mentioned various drawbacks are the results of the inventors after careful practical studies. Accordingly, the discovery process of the above-described problems and the solutions to the above-described problems set forth below by the embodiments of the present application should be regarded as contributions of the inventors in the implementation of the present application.

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application may be applied to various communication systems, such as a wireless fidelity (wireless fidelity, wiFi) system, a vehicle-to-object (vehicle to everything, V2X) communication system, an inter-device (D2D) communication system, a vehicle networking communication system, a 4th generation (4th generation,4G) mobile communication system, such as a long term evolution (long term evolution, LTE) system, a worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, a fifth generation (5th generation,5G) mobile communication system, such as a new radio, NR) system, and future communication systems, such as a sixth generation (6th generation,6G) mobile communication system, and the like.

The present application will present various aspects, embodiments, or features about a system that may include a plurality of devices, components, modules, etc. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, combinations of these schemes may also be used.

In addition, in the embodiments of the present application, words such as "exemplary," "for example," and the like are used to indicate an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

In the embodiment of the present application, "information", "signal", "message", "channel", and "signaling" may be used in a mixed manner, and it should be noted that the meaning of the expression is consistent when the distinction is not emphasized. "of", "corresponding" and "corresponding" are sometimes used in combination, and it should be noted that the meaning of the expression is consistent when the distinction is not emphasized.

In the embodiment of the application, sometimes the subscript is W ₁ May be misidentified as a non-subscripted form such as W1, the meaning it is intended to express being consistent when de-emphasizing the distinction.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

To facilitate understanding of the embodiments of the present application, a communication system suitable for use in the embodiments of the present application will be described in detail with reference to the communication system shown in fig. 3. Fig. 3 is a schematic diagram of a communication system to which the communication method according to the embodiment of the present application is applicable.

As shown in fig. 3, the communication system includes a network device and a terminal device.

The network device is a device located at the network side of the communication system and having a wireless transceiver function or a chip system arranged on the device. The network devices include, but are not limited to: an Access Point (AP) in a wireless fidelity (wireless fidelity, wiFi) system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), a wireless relay Node, a wireless backhaul Node, a transmission point (transmission and reception point, TRP, transmission point, TP), etc., may also be a 5G, such as a gbb in a new air interface (NR) system, or a transmission point (TRP, TP), one or a group of base stations (including multiple antenna panels) antenna panels in a 5G system, or may also be network nodes constituting a gbb or transmission point, such as a baseband unit (BBU), or a distributed base station unit (base station unit), a distributed unit (rsdu), etc., a base station unit (rsdu), etc.

The terminal equipment is a terminal which is accessed into the communication system and has a wireless receiving and transmitting function or a chip system which can be arranged on the terminal. The terminal device may also be referred to as a user equipment, access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. The terminal device in the embodiment of the present application 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 (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 medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a vehicle-mounted terminal, an RSU with a terminal function, or the like. The terminal device of the present application may be a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit that is built in a vehicle as one or more components or units, and the vehicle may implement the communication method provided by the present application through the built-in vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit.

It should be noted that, the communication method provided in the embodiment of the present application may be applied between the terminal device and the network device shown in fig. 3, and specific implementation may refer to the following method embodiments, which are not described herein again.

It should be noted that the solution in the embodiment of the present application may also be applied to other communication systems, and the corresponding names may also be replaced by names of corresponding functions in other communication systems.

Fig. 3 is a simplified schematic diagram that is merely exemplary for ease of understanding, and other network devices and/or other terminal devices may be included in the communication system, which are not shown in fig. 3.

The communication method provided by the embodiment of the application will be specifically described with reference to fig. 4 to 8.

Fig. 4 is a schematic flow chart of a communication method according to an embodiment of the present application. The communication method may be applied to communication between the terminal device and the network device shown in fig. 3.

As shown in fig. 4, the communication method may include the steps of:

s401, the terminal equipment determines a first uplink resource.

The first uplink resource may be located in a first time unit and may carry first feedback information, where the first feedback information may be feedback information corresponding to the SPS PDSCH.

Optionally, the first feedback information may include: feedback information corresponding to one or more SPS PDSCH. When the first feedback information includes feedback information corresponding to the plurality of SPS PDSCH, configuration information of the plurality of SPS PDSCH may be the same or different. In addition, the first time unit may be a time slot.

The following takes the example that the first feedback information includes feedback information corresponding to one SPS PDSCH, and S401 described above is described with reference to fig. 5.

Referring to fig. 5, assuming that the SPS PDSCH is located in slot 1, feedback information corresponding to the SPS PDSCH is carried in PUCCH1 (shown in dashed line in fig. 5) in slot 3, the terminal device may determine that: PUCCH1 is a first uplink resource, and slot 3 is a first time unit. The descriptions of the SPS PDSCH and the feedback information corresponding to the SPS PDSCH may refer to the steps 1 to 4, and are not repeated here.

S402, if the time domain symbol occupied by the first uplink resource includes: and determining, by the terminal device, the second time unit and the second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated.

The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource may be located after the time domain starting position of the first uplink resource.

The second uplink resource may include: PUCCH, or uplink shared physical channel (physical uplink shared channel, PUSCH), and the like. The second time unit may be a time slot. The time domain starting position of one resource may be: the first symbol of all time domain symbols occupied by the resource. In addition, the downlink symbol and the flexible symbol not indicated for uplink transmission may refer to the description in the technical term 1, and are not repeated here.

The following describes S402 described above with reference to fig. 5.

With continued reference to fig. 5, the time domain symbols occupied by the pucch1 (first uplink resource) are symbols 1-3 of the slot 3, and the 3 symbols are downlink symbols, that is, the time domain symbols occupied by the first uplink resource are downlink symbols. In order to successfully transmit PUCCH1, the terminal device may determine a second time unit and a second uplink resource in the resources after symbol 1 of slot 3. For example, slot 3 may be determined as a second time unit and PUCCH2 as a second uplink resource. Alternatively, slot 4 may be determined as the second time unit and PUCCH3 may be determined as the second uplink resource. The time domain symbols occupied by the PUCCH2 are symbols 11-13 of the slot 3, and the 3 symbols are all uplink symbols, the time domain symbols occupied by the PUCCH3 are symbols 1-3 of the slot 4, and the 3 symbols are all uplink symbols.

In some possible embodiments, the second time unit may be located after the first time unit, or the second time unit and the first time unit may be the same time unit. For example, if slot 4 is determined to be a second time unit and PUCCH3 is determined to be a second uplink resource, the second time unit is located after the first time unit. In other possible embodiments, if slot 3 is determined to be the second time unit and PUCCH2 is determined to be the second uplink resource, then the second time unit and the first time unit are the same time unit.

Therefore, the terminal equipment can send the first feedback information in the first time unit or in the time unit after the first time unit, and the flexibility of the terminal equipment for sending the first feedback information can be improved.

Alternatively, in order to reduce the amount of computation of the terminal device and save power consumption, the relative position of the second uplink resource in the second time unit and the relative position of the first uplink resource in the first time unit may be the same (referred to as mode 1). Wherein, the relative position can be: the symbol number of the first symbol of the resource occupation in a slot, i.e. the number of symbols spaced between the first symbol and symbol 0 of the slot. For example, assume that a slot includes 14 symbols, in chronological order: symbol 0, symbol 1, …, symbol 13, one PUCCH in the slot is located at symbols 1-3, then the relative position of the PUCCH in the slot is 1.

With continued reference to fig. 5, since the time domain starting position of PUCCH1 is symbol 1 of slot 3, when determining the second time unit and the second uplink resource, the terminal device may determine the second uplink resource in chronological order in a plurality of slots after slot 3 with symbol 1 as a starting symbol, for example, may determine slot 4 as the second time unit and PUCCH3 as the second uplink resource.

In this way, the time domain range of the second uplink resource exists, and the time domain range can be reduced from all time domains after the time domain starting position of the first uplink resource to part of symbols in each time unit after the time domain starting position of the first uplink resource, that is, the terminal equipment can determine the second time unit and the second uplink resource in a smaller time domain range, so that the calculation amount of the terminal equipment can be reduced, and the power consumption can be saved.

In other possible embodiments, in order to reduce the amount of computation of the terminal device and save power consumption, the time domain width of the second uplink resource and the time domain width of the first uplink resource may be equal, and/or the frequency domain width of the second uplink resource and the frequency domain width of the first uplink resource may be equal (referred to as mode 2).

With continued reference to fig. 5, since the time domain symbol occupied by PUCCH1 is symbol 1-symbol 3 of slot 3, when determining the second time unit and the second uplink resource, the terminal device may determine the second uplink resource in chronological order in symbol 1-symbol 3 of a plurality of slots after slot 3, for example, may determine PUCCH3 as the second uplink resource and determine slot 4 as the second time unit.

In this way, the time domain range of the second uplink resource exists, and the time domain range can be reduced from all time domains after the time domain starting position of the first uplink resource to a part of time domains after the time domain starting position of the first uplink resource, wherein the part of time domains are time domains including available uplink resources, and the size of the available uplink resources can be equal to that of the first uplink resource, that is, the terminal equipment can determine the second time unit and the second uplink resource in a smaller time domain range, so that the calculation amount of the terminal equipment can be reduced, and the power consumption can be saved.

The above-mentioned modes 1 and 2 may be implemented independently or in combination, that is, the relative position of the second uplink resource in the second time unit is the same as the relative position of the first uplink resource in the first time unit, and the time domain width of the second uplink resource is equal to the time domain width of the first uplink resource, and/or the frequency domain width of the second uplink resource is equal to the frequency domain width of the first uplink resource.

In this way, the time domain range of the second uplink resource exists, and the partial symbol in each time unit of the partial time domain can be reduced from all time domains after the time domain starting position of the first uplink resource, that is, the terminal device can determine the second time unit and the second uplink resource in a smaller time domain range, so that the calculation amount of the terminal device can be reduced, and the power consumption can be saved.

In some possible embodiments, S402 may include the following embodiments:

mode 3 may include the following steps:

and 5, determining a second time unit.

The second time unit may be a candidate time unit with a forefront time domain position in the one or more candidate time units, the time domain starting position of each candidate time unit may be no earlier than the time domain starting position of the first time unit, and each candidate time unit may satisfy: a first condition, and/or a second condition.

The first condition may be: the available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, and a maximum value of a codebook bit interval corresponding to the available SPS feedback resources may be greater than or equal to a feedback bit number, where the feedback bit number may be: the sum of the codebook number of bits of the SPS feedback information in the candidate time cell and the codebook number of bits of the first feedback information. In other words, the available SPS feedback resources can carry: SPS feedback information in a candidate time cell and first feedback information.

The SPS feedback information in the candidate time unit may be: feedback information corresponding to a part or all of the SPS PDSCH in the candidate time unit. For example, referring to fig. 6, if the time slot 4 is a candidate time unit, the time slot 4 includes: SPS feedback information 1, SPS feedback information 2, SPS feedback information 3, SPS feedback information 4, then some or all of the 4 feedback information may be selected as SPS feedback information in slot 4.

The second condition may be: there is an upstream signal that may include upstream data or dynamic feedback information. The resource for carrying uplink data may be PUSCH or PUCCH. The dynamic feedback information may be feedback information corresponding to the dynamic PDSCH.

In addition, the above SPS feedback information and available SPS feedback resources may refer to the description of the "SPS PDSCH" in the above technical term 2, and the specific description of the feedback information corresponding to the dynamic PDSCH may refer to the existing implementation manner, which is not repeated here.

Based on the above description, the candidate time units may also be: there are time units for which SPS feedback resources and/or uplink signals are available and the time domain start position is not earlier than the time domain start position of the first time unit. In addition, if the "available SPS feedback resource and/or uplink signal" exists in the first time unit, and the time domain start position of the "available SPS feedback resource and/or uplink signal" is located after the time domain start position of the first uplink resource, the first time unit may also be a candidate time unit.

Optionally, the maximum value of the codebook bit interval corresponding to the available SPS feedback resource may be greater than or equal to the feedback bit number, which may include: the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit may include a sum of codebook bits of the SPS feedback information and the first feedback information in the candidate time unit, or the minimum value of the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit may be greater than the sum of codebook bits of the SPS feedback information and the first feedback information in the candidate time unit. In other words, the available SPS feedback resources can carry not only the SPS feedback information in the candidate time unit but also the first feedback information, so that one feedback resource can be used to carry a plurality of feedback information, the interaction times of the terminal device and the network device are reduced, and the signaling overhead is reduced, so that the communication efficiency is improved.

And 6, determining a second uplink resource in the second time unit.

Optionally, after determining the second uplink resource in the second time unit, the first feedback information is delayed until the second uplink resource in the second time unit is sent, that is, the SPS feedback information in the second time unit may include the first feedback information. In other words, in the second time unit determined by the terminal device, the SPS feedback information may include: feedback information and first feedback information corresponding to other SPS PDSCH. For example, referring to fig. 6, if it is determined that the time slot 4 is the second time unit, the SPS feedback information in the time slot 4 includes the first feedback information and other SPS feedback information.

The steps 5 and 6 are described below with reference to fig. 6.

Referring to fig. 6, a time slot 3 is a first time unit, PUCCH1 is a first uplink resource, an available SPS feedback resource and an uplink signal exist in a time slot 4, an uplink signal exists in a time slot 5, and an available SPS feedback resource exists in a time slot 6, so that time slots 4, 5, and 6 are candidate time units. Since time slot 4 is the most forward candidate of the several candidate time units, time slot 4 may be determined to be the second time unit, and then the terminal device may determine the second uplink resource in time slot 4. For example, the terminal device may determine the resource carrying the uplink signal in the time slot 4 as the second uplink resource, that is, the first feedback information is carried by the resource carrying the uplink signal in the time slot 4.

In this way, when the terminal device determines the second uplink resource in the second time unit, the first feedback information can be carried through the available SPS feedback resource existing in the time unit, or the first feedback information can be carried through the resource carrying the uplink signal existing in the time unit, that is, one feedback resource can be used to carry a plurality of feedback information, so that the interaction times of the terminal device and the network device can be reduced, the signaling overhead is reduced, and the communication efficiency is improved.

Optionally, step 6, determining the second uplink resource in the second time unit may include: and if the second time unit meets the first condition and does not meet the second condition, determining that the available SPS feedback resource in the second time unit is a second uplink resource. Or if the second time unit meets the second condition, determining the resource carrying the uplink signal in the second time unit as the second uplink resource.

In an embodiment, determining that the available SPS feedback resource in the second time unit in step 6 is a second uplink resource may include: first, SPS feedback information in a second time unit is determined. Then, an available SPS feedback resource is determined in the semi-persistent scheduling PUCCH resource set of the second time unit based on a sum of a payload (payload) size of the SPS feedback information and a payload size of the first feedback information. And finally, determining the available SPS feedback resource as a second uplink resource.

Wherein determining available SPS feedback resources in the semi-persistent scheduling PUCCH resource set of the second time unit may include: determining one or more first available PUCCH resources in the semi-statically scheduled PUCCH resource set of the second time unit, wherein each first available PUCCH resource satisfies: the occupied time domain symbols are all symbols for uplink transmission, and the maximum value of the corresponding codebook bit interval can be greater than or equal to the feedback bit number. And determining the first available PUCCH resource with the shortest frequency domain width and/or time domain width or the earliest time domain starting position from the one or more first available PUCCH resources as an available SPS feedback resource.

In an embodiment, determining that the resource carrying the uplink signal in the second time unit in step 6 is the second uplink resource may include: first, dynamic feedback information in a second time unit is determined. The dynamic feedback information and the first feedback information are then combined into one feedback information. And then, according to the payload size of the combined feedback information, determining the resource carrying the uplink signal in the dynamic PUCCH resource set of the second time unit. And finally, determining the resource carrying the uplink signal as a second uplink resource.

Wherein determining the resource carrying the uplink signal in the dynamic PUCCH resource set of the second time unit may include: one or more second available PUCCH resources are determined in the dynamic PUCCH resource set according to the payload size of the combined feedback information and the physical uplink control channel resources (PUCCH resource indicator, PRI) in the DCI. Wherein each second available PUCCH resource satisfies: the occupied time domain symbols are all symbols for uplink transmission, and the maximum value of the corresponding codebook bit interval can be greater than or equal to the feedback bit number. And determining the second available PUCCH resource with the shortest frequency domain width and/or time domain width or the earliest time domain starting position from the one or more second available PUCCH resources as a resource for bearing the uplink signal.

Based on the above step 6, the terminal device may preferably carry the first feedback information through the existing resources carrying the uplink signal in the time unit, because the resources carrying the uplink signal may be dynamic feedback resources (such as dynamic PDSCH), and compared with available SPS feedback resources, the channel condition occupied by the dynamic feedback resources may be better, and the feedback success rate is higher, so that the first feedback information is preferably carried through the resources carrying the uplink signal, which can improve the reliability of data transmission, reduce the transmission delay, and improve the communication efficiency.

Alternatively, after the above step 5, step 6 may be performed instead of the step 7 to determine the second uplink resource in the second time unit:

and 7, determining the available SPS feedback resource in the second time unit as a second uplink resource, or determining the resource carrying the uplink signal in the second time unit as the second uplink resource.

Comparing the two embodiments of the step 6 and the step 7, the two embodiments are different in that: step 6 may preferentially carry the first feedback information through the existing resources carrying the uplink signal in the time unit, and step 7 determines the available SPS feedback resources or the resources carrying the uplink signal in the second time unit as the second uplink resource. Thus, the effects of step 7 include: and determining available SPS feedback resources or resources bearing uplink signals in the second time unit as second uplink resources, wherein one feedback resource can be used for bearing a plurality of feedback information, so that the interaction times of the terminal equipment and the network equipment can be reduced, the signaling overhead is reduced, and the communication efficiency is improved.

Mode 4, determining a second time unit, and determining a second uplink resource in the second time unit.

The second time unit may be a candidate time unit with a forefront time domain position in the one or more candidate time units, the time domain starting position of each candidate time unit may not be earlier than the time domain starting position of the first time unit, and each candidate time unit may meet the candidate condition. The candidate condition may include any one of the following: the presence of uplink symbols, the presence of feedback information, the presence of dynamic feedback information, or the presence of SPS feedback information.

As can be seen from comparing the above embodiment 3 and embodiment 4, the embodiment 4 and embodiment 3 can be replaced with each other, and thus, the embodiment and effect of embodiment 4 can be referred to embodiment 3, and the description thereof will not be repeated.

Mode 5, a third time unit is determined. Wherein the third time unit may be: after the time domain starting position of the first uplink resource, and including the time unit of the available uplink resource, the time domain symbols occupied by the available uplink resource are all symbols for uplink transmission. And determining the third time unit as the second time unit, and determining the available uplink resources in the third time unit as the second uplink resources.

How the implementation 5 is implemented is described below in connection with fig. 5, 7, 8 and several examples.

Example 1, first, the size and location of the second uplink resource is determined. The size of the second uplink resource is equal to that of the first uplink resource, and the relative position of the second uplink resource in one time unit is the same as that of the first uplink resource in the first time unit. In addition, the size of one resource is equal to the size of another resource may be: the time domain width of one resource is equal to the time domain width of another resource and/or the frequency domain width of one resource is equal to the frequency domain width of another resource.

Then, a third time unit is determined according to the size and the position of the second uplink resource. Wherein the third time unit may be: after the first time unit, the first time unit includes a third available uplink resource, the size of the third available uplink resource is equal to the size of the first uplink resource, the position of the third available uplink resource in the third time unit is the same as the position of the first uplink resource in the first time unit, and the time domain symbols occupied by the third available uplink resource are all symbols for uplink transmission.

And finally, determining the third time unit as a second time unit, and determining the third available uplink resource in the third time unit as a second uplink resource.

Referring to fig. 5, slot 3 is a first time unit, PUCCH1 is a first uplink resource, and PUCCH1 is located in symbol 1-symbol 3 of slot 3. The terminal device may determine, in chronological order, from the slot 3, in the symbol 1-symbol 3 of each slot following the slot 3, the first slot in which the third available uplink resource exists as the third time unit, such as the slot 4 in fig. 5. Then, slot 4 is determined as a second time unit, and PUCCH3 in symbols 1 to 3 of slot 4 is determined as a second uplink resource.

Example 2 first, the size of the second uplink resource is determined. The size of the second uplink resource is equal to the size of the first uplink resource.

Then, a third time unit is determined according to the size of the second uplink resource. Wherein the third time unit may be: after the first time unit, and including a first time unit of a fourth available uplink resource, the fourth available uplink resource is equal in size to the first uplink resource.

And finally, determining the third time unit as a second time unit, and determining a fourth available uplink resource in the third time unit as a second uplink resource.

Referring to fig. 7, slot 3 is a first time unit, PUCCH1 is a first uplink resource, and PUCCH1 is located between symbol 1 and symbol 3 of slot 3. The terminal device may determine, in chronological order, from symbol 3 of slot 3, in each symbol following symbol 3 of slot 3, the first slot in which the fourth available uplink resource exists as the third time unit, such as slot 3 in fig. 7. Slot 3 is then determined as the second time unit and PUCCH2 in symbol 11-symbol 13 of slot 3 is determined as the second uplink resource.

Example 3, first, a fifth available uplink resource is determined according to the size of the first uplink resource. The fifth available uplink resource may be: and the size of the fifth available uplink resource is greater than or equal to the size of the first uplink resource.

Then, the fifth available uplink resource is determined as the second uplink resource, and the time unit in which the fifth available uplink resource is located is determined as the second time unit.

Referring to fig. 8, slot 3 is a first time unit, and PUCCH1 is a first uplink resource. The terminal device may determine, in chronological order, from the slot 3, a first slot in which a fifth available uplink resource exists as a third time unit in the PUCCH resource set (including the PUCCH resource set 1, the PUCCH resource set 2, and the PUCCH resource set 3) of each slot after the slot 3, such as the slot 4 in fig. 8. Slot 4 is then determined as the second time unit and PUCCH2 of slot 4 is determined as the second uplink resource.

As can be seen from the foregoing examples 1 to 3, the manner 5 provides various embodiments for determining the second time unit and the second uplink resource, which can delay the feedback information to the second uplink resource to avoid the feedback information from being cancelled, so that the network device can determine whether the SPS PDSCH is successfully received and determine whether to retransmit the data according to the feedback information, so as to reduce the probability of data loss, improve the reliability of data transmission, reduce the number of times of data retransmission, save resources, improve the transmission efficiency, and further improve the communication efficiency.

As can be seen from the foregoing manner 3-5, the second time unit determined based on the manner 3-5 may be located after the first time unit, or the second time unit and the first time unit may be the same time unit. The relative position of the second uplink resource in the second time unit determined based on the modes 3 to 5 may be the same as the relative position of the first uplink resource in the first time unit. The relative position of the second uplink resource in the second time unit determined based on the modes 3 to 5 may be the same as the relative position of the first uplink resource in the first time unit.

In addition, the above symbols for uplink transmission may include one or more of the following: semi-statically configured uplink symbols, dynamically indicated flexible symbols for uplink transmission, or flexible symbols configured for uplink transmission, etc.

In some possible embodiments, after S402, the communication method shown in fig. 4 may further include the following steps:

and 8, if the combined sending condition is met, determining a third uplink resource. The third uplink resource may carry the first feedback information and the second feedback information.

The combined sending condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information.

The second feedback information may be uplink data, for example, feedback information corresponding to SPS PDSCH, feedback information corresponding to dynamic PDSCH, and the like. When the second time unit includes the second feedback information, or the second uplink resource overlaps with the resource carrying the second feedback information, the terminal device may determine, by using a multiplexing manner, the third uplink resource to carry the first feedback information and the second feedback information. The third uplink resource may be the same as the second uplink resource or may be different from the second uplink resource.

Therefore, one feedback resource can be used for bearing a plurality of feedback information, the interaction times of the terminal equipment and the network equipment are reduced, the signaling overhead is reduced, resource conflict can be avoided in a resource multiplexing mode, the number of times that the first feedback information is canceled to be sent is reduced, and therefore the data transmission reliability and the transmission time delay can be improved, and the communication efficiency is improved.

After executing step 8, after determining the third uplink resource, the terminal device may further send the first feedback information and the second feedback information on the third uplink resource.

In addition, the determining, by the terminal device, the second uplink resource by using the multiplexing method may refer to the technical term 3, which is not described herein.

S403, the terminal equipment sends the first feedback information on the second uplink resource, and the network equipment receives the first feedback information on the second uplink resource.

The embodiment of the network device in S403 receiving the first feedback information on the second uplink resource may refer to S401 and S402, which are not described herein.

After receiving the first feedback information, the network device determines that the terminal device successfully receives the SPS PDSCH if the first feedback information includes acknowledgement information. If the first feedback information includes negative acknowledgement information, determining that the terminal device fails to receive, and the network device may retransmit the SPS PDSCH to the terminal device.

Based on the communication method shown in fig. 4, if the first uplink resource is canceled to be transmitted, for example, the time domain symbol occupied by the first uplink resource includes: and/or, if the downlink symbol is not indicated for uplink transmission, the terminal device may determine a second time unit and a second uplink resource in the resources after the time domain starting position of the first uplink resource, and send the first feedback information on the second uplink resource. Thus, when the feedback information corresponding to the SPS PDSCH is not transmitted on the first uplink resource, the terminal device may delay the feedback information to the second uplink resource for transmission. Therefore, the network equipment can determine whether the SPS PDSCH is successfully received or not according to the feedback information and determine whether to retransmit the data, so that the probability of data loss is reduced, the data transmission reliability is improved, the number of data retransmission times can be reduced, resources are saved, the transmission efficiency is improved, and the communication efficiency is further improved.

The communication method provided by the embodiment of the application is described in detail above with reference to fig. 4 to 8. A communication apparatus for performing the communication method provided by the embodiment of the present application is described in detail below with reference to fig. 9 and 10.

Fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 9, the communication apparatus 900 includes: a processing module 901 and a transceiver module 902. For convenience of explanation, fig. 9 shows only major components of the communication apparatus.

In some embodiments, the communication apparatus 900 may be adapted to perform the functions of the terminal device in the communication method shown in fig. 4 in the communication system shown in fig. 3.

The processing module 901 is configured to determine a first uplink resource. The first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH. The processing module 901 is further configured to, if the time domain symbol occupied by the first uplink resource includes: and determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated. The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource. And a transceiver module 902, configured to send the first feedback information on the second uplink resource.

In a possible embodiment, the processing module 901 may also be configured to determine the second time unit. The second time unit may be a candidate time unit with a forefront time domain position in one or more candidate time units, the time domain starting position of each candidate time unit may not be earlier than the time domain starting position of the first time unit, and each candidate time unit may satisfy: a first condition, and/or a second condition. Wherein, the first condition may be: the available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, a maximum value of a codebook bit interval corresponding to the available SPS feedback resources may be greater than or equal to a feedback bit number, and the feedback bit number may be a sum of a codebook bit number of SPS feedback information in the candidate time unit and a codebook bit number of the first feedback information. The second condition may be: there is an upstream signal, which may include upstream data or dynamic feedback information. The processing module 901 may be further configured to determine a second uplink resource in the second time unit.

Optionally, the processing module 901 may be further configured to determine that the available SPS feedback resource in the second time unit is the second uplink resource if the second time unit meets the first condition and does not meet the second condition. Or, the processing module 901 may be further configured to determine that the resource carrying the uplink signal in the second time unit is the second uplink resource if the second time unit meets the second condition.

In a possible design, the processing module 901 may be further configured to determine a third uplink resource if the combined sending condition is met. The third uplink resource may carry the first feedback information and the second feedback information. The combined sending condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information. The transceiver module 902 may be further configured to send the first feedback information and the second feedback information on the third uplink resource.

Alternatively, the transceiver module 902 may include a receiving module and a transmitting module (not shown in fig. 9). The transmitting module is configured to implement a transmitting function of the communication device 900, and the receiving module is configured to implement a receiving function of the communication device 900.

Optionally, the communication device 900 may further include a storage module (not shown in fig. 9) storing programs or instructions. When the processing module 901 executes the program or instructions, the communication apparatus 900 is enabled to perform the functions of the terminal device in the communication method shown in fig. 4.

It is appreciated that the processing module 901 involved in the communication device 900 may be implemented by a processor or processor-related circuit component, which may be a processor or processing unit; the transceiver module 902 may be implemented by a transceiver or transceiver-related circuit component, and may be a transceiver or a transceiver unit.

The communication device 900 may be the terminal device shown in fig. 3, or may be a chip (system) or other components or assemblies provided in the terminal device, or may be a device including the terminal device, which is not limited in the present application.

In addition, the technical effects of the communication apparatus 900 may refer to the technical effects of the communication method shown in fig. 4, and will not be described herein.

In other embodiments, the communication apparatus 900 may be adapted to perform the functions of the network device in the communication method shown in fig. 4 in the communication system shown in fig. 3.

The processing module 901 is configured to determine a first uplink resource. The first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH. The processing module 901 is further configured to, if the time domain symbol occupied by the first uplink resource includes: and determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated. The second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource. A transceiver module 902, configured to receive the first feedback information on the second uplink resource.

In a possible design, the processing module 901 may be further configured to determine a third uplink resource if the combining receiving condition is met. The third uplink resource may carry the first feedback information and the second feedback information. Wherein, the combined receiving condition may be: the second time unit includes second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information. The transceiver module 902 may be further configured to receive the first feedback information and the second feedback information on the third uplink resource.

Optionally, the communication device 900 may further include a storage module (not shown in fig. 9) storing programs or instructions. When the processing module 901 executes the program or instructions, the communication apparatus 900 is enabled to perform the functions of the network device in the communication method shown in fig. 4.

Note that, the communication apparatus 900 may be the network device shown in fig. 3, or may be a chip (system) or other components or assemblies provided in the network device, or an apparatus including the network device, which is not limited herein.

Fig. 10 is a schematic diagram of a second structure of the communication device according to the embodiment of the present application. The communication device may be a terminal device or a network device, or may be a chip (system) or other parts or components that may be provided in the terminal device or the network device. As shown in fig. 10, the communication device 1000 may include a processor 1001. Optionally, the communication device 1000 may also include a memory 1002 and/or a transceiver 1003. Wherein the processor 1001 is coupled to the memory 1002 and the transceiver 1003, such as by a communication bus.

The following describes each constituent element of the communication apparatus 1000 in detail with reference to fig. 10:

the processor 1001 is a control center of the communication device 1000, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 1001 is one or more central processing units (central processing unit, CPU), but may also be an integrated circuit specific (application specific integrated circuit, ASIC), or one or more integrated circuits configured to implement embodiments of the present application, such as: one or more microprocessors (digital signal processor, DSPs), or one or more field programmable gate arrays (field programmable gate array, FPGAs).

Alternatively, the processor 1001 may perform various functions of the communication apparatus 1000 by running or executing a software program stored in the memory 1002 and calling data stored in the memory 1002.

In a particular implementation, the processor 1001 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 10, as an embodiment.

In a specific implementation, as an embodiment, the communication apparatus 1000 may also include a plurality of processors, such as the processor 1001 and the processor 1004 shown in fig. 10. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 1002 is configured to store a software program for executing the solution of the present application, and the processor 1001 controls the execution of the software program, and the specific implementation may refer to the above method embodiment, which is not described herein again.

Alternatively, memory 1002 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 1002 may be integral to the processor 1001 or may exist separately and be coupled to the processor 1001 through an interface circuit (not shown in fig. 10) of the communication device 1000, which is not specifically limited in this embodiment of the present application.

A transceiver 1003 for communication with other communication apparatuses. For example, the communication apparatus 1000 is a terminal device, and the transceiver 1003 may be used to communicate with a network device or another terminal device. As another example, the communication apparatus 1000 is a network device, and the transceiver 1003 may be used to communicate with a terminal device or another network device.

Alternatively, the transceiver 1003 may include a receiver and a transmitter (not separately shown in fig. 10). The receiver is used for realizing the receiving function, and the transmitter is used for realizing the transmitting function.

Alternatively, the transceiver 1003 may be integral to the processor 1001 or may exist separately and be coupled to the processor 1001 by an interface circuit (not shown in fig. 10) of the communication device 1000, which is not specifically limited in this embodiment of the present application.

It should be noted that the configuration of the communication apparatus 1000 shown in fig. 10 is not limited to the communication apparatus, and an actual communication apparatus may include more or less components than those shown, or may combine some components, or may be different in arrangement of components.

In addition, the technical effects of the communication device 1000 may refer to the technical effects of the communication method described in the above method embodiments, and are not described herein.

The embodiment of the application provides a communication system. The communication system comprises one or more terminal devices as described above, and one or more network devices.

It should be appreciated that the processor in embodiments of the application may be a central processing unit (central processing unit, CPU), which may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, RAM) are available, such as Static RAM (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware (e.g., circuitry), firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. In addition, the character "/" herein generally indicates that the associated object is an "or" relationship, but may also indicate an "and/or" relationship, and may be understood by referring to the context.

In the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

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

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

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of communication, comprising:

determining a first uplink resource; the first uplink resource is located in a first time unit and carries first feedback information, and the first feedback information is feedback information corresponding to a semi-persistent scheduling SPS physical downlink shared channel PDSCH;

if the time domain symbol occupied by the first uplink resource includes: determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated;

the second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols used for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource;

And sending the first feedback information on the second uplink resource.
The method of claim 1, wherein the second time unit is located after the first time unit or the second time unit and the first time unit are the same time unit.
The method of claim 2, wherein the relative position of the second uplink resource in the second time unit is the same as the relative position of the first uplink resource in the first time unit.
A method according to any of claims 1-3, characterized in that the time domain width of the second uplink resource is equal to the time domain width of the first uplink resource and/or the frequency domain width of the second uplink resource is equal to the frequency domain width of the first uplink resource.
The method according to any of claims 1-4, wherein the determining the second time unit and the second uplink resource comprises:

determining the second time unit; the second time unit is the candidate time unit with the forefront time domain position in one or more candidate time units, the time domain starting position of each candidate time unit is not earlier than the time domain starting position of the first time unit, and each candidate time unit meets the following conditions: a first condition, and/or a second condition;

Wherein the first condition is: the method comprises the steps that available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, the maximum value of a codebook bit interval corresponding to the available SPS feedback resources is larger than or equal to the feedback bit number, and the feedback bit number is the sum of the codebook bit number of SPS feedback information in the candidate time unit and the codebook bit number of the first feedback information; the second condition is: the method comprises the steps that an uplink signal exists, wherein the uplink signal comprises uplink data or dynamic feedback information;

and determining the second uplink resource in the second time unit.
The method of claim 5, wherein said determining the second uplink resource in the second time unit comprises:

if the second time unit meets the first condition and does not meet the second condition, determining that the available SPS feedback resource in the second time unit is the second uplink resource; or,

and if the second time unit meets the second condition, determining that the resource carrying the uplink signal in the second time unit is the second uplink resource.
The method of claim 5 or 6, wherein a codebook bit interval corresponding to an available SPS feedback resource in the candidate time cell comprises a sum of the number of codebook bits of the SPS feedback information and the first feedback information in the candidate time cell; or,

and the minimum value of the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit is larger than the sum of the SPS feedback information in the candidate time unit and the codebook bit number of the first feedback information.
The method according to any of claims 1-7, wherein after the determining the second time unit and the second uplink resource, the method further comprises:

if the combining and sending conditions are met, determining a third uplink resource; the third uplink resource carries the first feedback information and the second feedback information;

the combined sending conditions are as follows: the second time unit comprises the second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information;

and sending the first feedback information and the second feedback information on the third uplink resource.
A method of communication, comprising:

Determining a first uplink resource; the first uplink resource is located in a first time unit and bears first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH;

if the time domain symbol occupied by the first uplink resource includes: determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated;

the second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols used for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource;

and receiving the first feedback information on the second uplink resource.
The method of claim 9, wherein the second time unit is located after the first time unit or the second time unit and the first time unit are the same time unit.
The method of claim 10, wherein the relative position of the second uplink resource in the second time unit is the same as the relative position of the first uplink resource in the first time unit.
The method according to any of claims 9-11, wherein the time domain width of the second uplink resource is equal to the time domain width of the first uplink resource and/or the frequency domain width of the second uplink resource is equal to the frequency domain width of the first uplink resource.
The method according to any of claims 9-12, wherein the determining the second time unit and the second uplink resource comprises:

determining the second time unit; the second time unit is the candidate time unit with the forefront time domain position in one or more candidate time units, the time domain starting position of each candidate time unit is not earlier than the time domain starting position of the first time unit, and each candidate time unit meets the following conditions: a first condition, and/or a second condition;

wherein the first condition is: the method comprises the steps that available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, the maximum value of a codebook bit interval corresponding to the available SPS feedback resources is larger than or equal to the feedback bit number, and the feedback bit number is the sum of the codebook bit number of SPS feedback information in the candidate time unit and the codebook bit number of the first feedback information; the second condition is: the method comprises the steps that an uplink signal exists, wherein the uplink signal comprises uplink data or dynamic feedback information;

And determining the second uplink resource in the second time unit.
The method of claim 13, wherein the determining the second uplink resource in the second time unit comprises:

if the second time unit meets the first condition and does not meet the second condition, determining that the available SPS feedback resource in the second time unit is the second uplink resource; or,

and if the second time unit meets the second condition, determining that the resource carrying the uplink signal in the second time unit is the second uplink resource.
The method of claim 13 or 14, wherein a codebook bit interval corresponding to an available SPS feedback resource in the candidate time cell comprises a sum of the number of codebook bits of the SPS feedback information and the first feedback information in the candidate time cell; or,

and the minimum value of the codebook bit interval corresponding to the available SPS feedback resource in the candidate time unit is larger than the sum of the SPS feedback information in the candidate time unit and the codebook bit number of the first feedback information.
The method according to any of claims 9-15, wherein after the determining the second time unit and the second uplink resource, the method further comprises:

If the combining receiving condition is met, determining a third uplink resource; the third uplink resource carries the first feedback information and the second feedback information;

wherein, the combined receiving condition is: the second time unit comprises the second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information;

and receiving the first feedback information and the second feedback information on the third uplink resource.
A communication device, comprising: a processing module and a receiving-transmitting module; wherein,

the processing module is used for determining a first uplink resource; the first uplink resource is located in a first time unit and bears first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH;

the processing module is further configured to, if the time domain symbol occupied by the first uplink resource includes: determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated;

the second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols used for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource;

The transceiver module is configured to send the first feedback information on the second uplink resource.
The apparatus of claim 17, wherein the second time unit is located after the first time unit or the second time unit and the first time unit are the same time unit.
The apparatus of claim 17 or 18, wherein the processing module is further configured to determine the second time unit; the second time unit is the candidate time unit with the forefront time domain position in one or more candidate time units, the time domain starting position of each candidate time unit is not earlier than the time domain starting position of the first time unit, and each candidate time unit meets the following conditions: a first condition, and/or a second condition;

wherein the first condition is: the method comprises the steps that available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, the maximum value of a codebook bit interval corresponding to the available SPS feedback resources is larger than or equal to the feedback bit number, and the feedback bit number is the sum of the codebook bit number of SPS feedback information in the candidate time unit and the codebook bit number of the first feedback information; the second condition is: the method comprises the steps that an uplink signal exists, wherein the uplink signal comprises uplink data or dynamic feedback information;

The processing module is further configured to determine the second uplink resource in the second time unit.
The apparatus of claim 19, wherein the processing module is further configured to determine available SPS feedback resources in the second time unit as the second uplink resource if the second time unit satisfies the first condition and the second condition is not satisfied; or,

and the processing module is further configured to determine that the resource carrying the uplink signal in the second time unit is the second uplink resource if the second time unit meets the second condition.
The apparatus according to any one of claims 17-20, wherein the processing module is further configured to determine a third uplink resource if a combined transmission condition is met; the third uplink resource carries the first feedback information and the second feedback information;

the combined sending conditions are as follows: the second time unit comprises the second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information;

the transceiver module is further configured to send the first feedback information and the second feedback information on the third uplink resource.
A communication device, comprising: a processing module and a receiving-transmitting module; wherein,

the processing module is used for determining a first uplink resource; the first uplink resource is located in a first time unit and bears first feedback information, and the first feedback information is feedback information corresponding to an SPS PDSCH;

the processing module is further configured to, if the time domain symbol occupied by the first uplink resource includes: determining a second time unit and a second uplink resource if the downlink symbol and/or the flexible symbol for uplink transmission is not indicated;

the second uplink resource is located in the second time unit, the time domain symbols occupied by the second uplink resource are all symbols used for uplink transmission, and the time domain starting position of the second uplink resource is located behind the time domain starting position of the first uplink resource;

the transceiver module is configured to receive the first feedback information on the second uplink resource.
The apparatus of claim 22, wherein the second time unit is located after the first time unit or the second time unit and the first time unit are the same time unit.
The apparatus of claim 22 or 23, wherein the processing module is further configured to determine the second time unit; the second time unit is the candidate time unit with the forefront time domain position in one or more candidate time units, the time domain starting position of each candidate time unit is not earlier than the time domain starting position of the first time unit, and each candidate time unit meets the following conditions: a first condition, and/or a second condition;

wherein the first condition is: the method comprises the steps that available SPS feedback resources exist, time domain symbols of the available SPS feedback resources are all symbols used for uplink transmission, the maximum value of a codebook bit interval corresponding to the available SPS feedback resources is larger than or equal to the feedback bit number, and the feedback bit number is the sum of the codebook bit number of SPS feedback information in the candidate time unit and the codebook bit number of the first feedback information; the second condition is: the method comprises the steps that an uplink signal exists, wherein the uplink signal comprises uplink data or dynamic feedback information;

the processing module is further configured to determine the second uplink resource in the second time unit.
The apparatus of claim 24, wherein the processing module is further configured to determine available SPS feedback resources in the second time unit as the second uplink resource if the second time unit satisfies the first condition and does not satisfy the second condition; or,

And the processing module is further configured to determine that the resource carrying the uplink signal in the second time unit is the second uplink resource if the second time unit meets the second condition.
The apparatus according to any one of claims 22-25, wherein the processing module is further configured to determine a third uplink resource if a combined reception condition is met; the third uplink resource carries the first feedback information and the second feedback information;

wherein, the combined receiving condition is: the second time unit comprises the second feedback information, or the second uplink resource overlaps with a resource carrying the second feedback information;

the transceiver module is further configured to receive the first feedback information and the second feedback information on the third uplink resource.
A communication device comprising a processor and a transceiver for information interaction between the communication device and other communication devices, the processor executing program instructions for performing the communication method of any of claims 1-16.
A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program or instructions which, when run on a computer, cause the computer to perform the communication method according to any one of claims 1-16.
A computer program product, the computer program product comprising: computer program or instructions which, when run on a computer, cause the computer to perform the communication method according to any one of claims 1-16.