CN113271181A

CN113271181A - Method and device for sending feedback information

Info

Publication number: CN113271181A
Application number: CN202010094003.1A
Authority: CN
Inventors: 马蕊香
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2021-08-17

Abstract

The application discloses a method and a device for sending feedback information, relates to the field of communication, and solves the problem of how to feed back release success information of at least two SPS configurations based on an enhanced dynamic codebook mode or a one-time feedback codebook mode. After the terminal device receives the first indication information from the network device, the terminal device sends feedback information at M feedback positions of the feedback positions corresponding to the N SPS configurations, and the feedback information is used for indicating that the N SPS configurations are successfully released. And the feedback positions corresponding to the N SPS configurations correspond to at least one codebook. The first indication information is used for indicating that the N SPS configurations are released. N is an integer greater than or equal to 2; m is an integer greater than or equal to 1. M is less than or equal to the number of feedback positions corresponding to the N SPS configurations.

Description

Method and device for sending feedback information

Technical Field

The embodiment of the application relates to the field of communication, in particular to a method and a device for sending feedback information.

Background

The International Telecommunications Union (ITU) defines three major types of business application scenarios for the fifth generation (5G) mobile communication system and future mobile communication systems: enhanced mobile broadband (eMBB), high-reliability and low-latency communications (URLLC), and mass machine type communications (mtc).

For the URLLC, a semi-persistent scheduling (SPS) mode may be used to transmit a Physical Downlink Shared Channel (PDSCH). Because the SPS method does not need to transmit a Physical Downlink Control Channel (PDCCH) before transmitting the PDSCH every time, the SPS method reduces the overhead of control commands as much as possible while satisfying the requirements of high reliability and low delay.

In order to match the transmission periods of different service data, the network device may configure the terminal device with a plurality of SPS configurations, and each SPS configuration may contain different parameters. In the case that SPS configuration is not needed, the network device may instruct the terminal device to release at least one SPS configuration, and after the terminal device releases the at least one SPS configuration, feedback release success information to the network device. Under the condition that a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook mode (such as an enhanced dynamic codebook mode or a one-time feedback codebook mode) based on a New Radio Un-license (NRU) is fed back with release success information, if the terminal device releases at least two SPS configurations, the at least two SPS configurations may correspond to multiple feedback positions, the terminal device feeds back the release success information at which feedback positions, and a corresponding mechanism is not specified in the current protocol.

Disclosure of Invention

The method and the device for sending the feedback information solve the problem of how to feed back the release success information of at least two SPS configurations based on the enhanced dynamic codebook mode or the one-time feedback codebook mode.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, the method for sending feedback information provided in this embodiment of the present application may be applied to a terminal device, or the method may be applied to a communication apparatus that may support the terminal device to implement the method, for example, the communication apparatus includes a chip system. The method comprises the following steps: after the terminal device receives the first indication information from the network device, the terminal device sends feedback information at M feedback positions of the feedback positions corresponding to the N SPS configurations, and the feedback information is used for indicating that the N SPS configurations are successfully released. And the feedback positions corresponding to the N SPS configurations correspond to at least one codebook. The first indication information is used for indicating that the N SPS configurations are released. N is an integer greater than or equal to 2; m is an integer greater than or equal to 1.

According to the method for sending the feedback information, the terminal device can determine at least one feedback position from the feedback positions corresponding to the at least two SPS configurations to feed back the successful release information of the at least two SPS configurations, so that the situation that the successful release information is sent out overtime is avoided, the network device retransmits data, transmission delay is increased, and resources are wasted.

In one possible implementation, the terminal device may send the feedback information based on the enhanced dynamic codebook mode. The feedback positions corresponding to the N SPS configurations are K codebooks, the M feedback positions are M codebooks in the K codebooks for sending feedback information, M is less than or equal to K, and K is an integer greater than or equal to 2. Wherein, feedback positions corresponding to the N SPS configurations are K codebooks, and the method comprises the following steps: the N SPS configurations correspond to K group identifiers, and the K group identifiers and the K codebooks have corresponding relations.

In another possible implementation manner, the terminal device may send the feedback information based on the one-time feedback codebook mode. The feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook, each bit field in the P bit fields comprises at least one bit, the M feedback positions are M bit fields in the P bit fields, and M is smaller than or equal to P. Wherein, feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook, and the method comprises the following steps: the N SPS configurations correspond to P HARQ process index numbers, and the P HARQ process index numbers and the P bit fields have corresponding relations.

In one possible design, the M feedback positions may be statically configured.

For example, the M feedback positions are feedback positions corresponding to a minimum index SPS configuration among the N SPS configurations, and M is 1. Therefore, the feedback information is sent through one feedback position, the minimum feedback overhead can be ensured, the feedback information of the dynamically scheduled data can be fed back through the rest feedback positions, the dynamic scheduling can be carried out only through the feedback positions, and the scheduling flexibility is guaranteed.

As another example, M feedback positions are feedback positions corresponding to N SPS configurations, and M is greater than or equal to 2. Therefore, the reliability of the feedback information can be improved for sending the feedback information at a plurality of feedback positions.

As another example, the M feedback positions are preset. Therefore, the feedback information is transmitted through the preset feedback position, and the complexity of implementation can be reduced.

In another possible design, the M feedback positions may be dynamically indicated. Before M feedback positions of the feedback positions corresponding to the N SPS configurations send feedback information, the method further includes: and receiving second indication information, wherein the second indication information is used for indicating that one of the feedback positions corresponding to the N SPS configurations is M feedback positions, and M is 1. Therefore, the dynamic indication of the network equipment according to the scheduling condition can be ensured, and the resource energy utilization rate is improved.

Further, before receiving the first indication information, the method further includes: receiving N pieces of third indication information, wherein each piece of third indication information is used for indicating one SPS configuration for the terminal equipment, and one SPS configuration comprises at least one of the following information: SPS index, SPS priority, and SPS periodicity.

In a second aspect, the method for receiving feedback information provided in the embodiments of the present application may be applied to a network device, or may be applied to a communication apparatus that may support the network device to implement the method, for example, the communication apparatus includes a chip system. The method comprises the following steps: the network equipment receives the feedback information at M feedback positions in the feedback positions corresponding to the N SPS configurations by sending the first indication information to the terminal equipment. Wherein the first indication information is used for indicating that the N SPS configurations are released. The feedback positions corresponding to the N SPS configurations correspond to at least one codebook, the feedback information is used for indicating that the N SPS configurations are successfully released, M is an integer larger than or equal to 1, and M is smaller than or equal to the number of the feedback positions corresponding to the N SPS configurations. N is an integer greater than or equal to 2.

According to the method for receiving the feedback information, the terminal device can determine at least one feedback position from the feedback positions corresponding to the at least two SPS configurations to feed back the successful release information of the at least two SPS configurations, so that the situation that the successful release information is sent out overtime is avoided, the network device retransmits data, transmission delay is increased, and resources are wasted.

In one possible design, the network device may receive feedback information based on an enhanced dynamic codebook mode. The feedback positions corresponding to the N SPS configurations are K codebooks, the M feedback positions are M codebooks in the K codebooks for sending feedback information, M is less than or equal to K, and K is an integer greater than or equal to 2. Wherein, feedback positions corresponding to the N SPS configurations are K codebooks, and the method comprises the following steps: the N SPS configurations correspond to K group identifiers, and the K group identifiers and the K codebooks have corresponding relations.

In another possible implementation, the network device may receive feedback information based on a one-time feedback codebook mode. The feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook, each bit field in the P bit fields comprises at least one bit, the M feedback positions are M bit fields in the P bit fields, and M is smaller than or equal to P. Wherein, feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook, and the method comprises the following steps: the N SPS configurations correspond to P HARQ process index numbers, and the P HARQ process index numbers and the P bit fields have corresponding relations.

In one possible design, the M feedback positions may be statically configured.

In another possible design, the M feedback positions may be dynamically indicated. Before M feedback positions of the feedback positions corresponding to the N SPS configurations receive the feedback information, the method further includes: and sending second indication information, wherein the second indication information is used for indicating that one of the feedback positions corresponding to the N SPS configurations is M feedback positions, and M is 1. Therefore, the dynamic indication of the network equipment according to the scheduling condition can be ensured, and the resource energy utilization rate is improved.

Further, before sending the first indication information, the method further includes: and transmitting N pieces of third indication information, wherein each piece of third indication information is used for indicating one SPS configuration for the terminal equipment, and one SPS configuration comprises at least one of the following information: SPS index, SPS priority, and SPS periodicity.

In a third aspect, an embodiment of the present application further provides a communication apparatus, and for beneficial effects, reference may be made to the description of the first aspect and details are not repeated here. The communication device has the functionality to implement the actions in the method instance of the first aspect described above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the communication device includes: a transceiving unit and a processing unit. The receiving and sending unit is used for receiving the first indication information and sending feedback information at M feedback positions in the feedback positions corresponding to the N SPS configurations. The first indication information is used for indicating that N SPS configurations are released, wherein N is an integer greater than or equal to 2. The feedback positions corresponding to the N SPS configurations correspond to at least one codebook, the feedback information is used for indicating that the N SPS configurations are successfully released, M is an integer larger than or equal to 1, and M is smaller than or equal to the number of the feedback positions corresponding to the N SPS configurations. The processing unit is used for determining M feedback positions. The modules may perform corresponding functions in the method example of the first aspect, for specific reference, detailed description of the method example is given, and details are not repeated here.

In a fourth aspect, the present application further provides a communication apparatus, and reference may be made to the description of the second aspect for advantageous effects that are not described herein again. The communication device has the functionality to implement the actions in the method example of the second aspect described above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the communication device includes: a transceiving unit and a processing unit. The receiving and sending unit is used for sending the first indication information and receiving the feedback information at M feedback positions in the feedback positions corresponding to the N SPS configurations. The first indication information is used for indicating that N SPS configurations are released, wherein N is an integer greater than or equal to 2. The feedback positions corresponding to the N SPS configurations correspond to at least one codebook, the feedback information is used for indicating that the N SPS configurations are successfully released, M is an integer larger than or equal to 1, and M is smaller than or equal to the number of the feedback positions corresponding to the N SPS configurations. The processing unit is used for determining M feedback positions. The modules may perform corresponding functions in the method example of the second aspect, for specific reference, detailed description of the method example is given, and details are not repeated here.

In a fifth aspect, a communication apparatus is provided, where the communication apparatus may be the terminal device in the above method embodiment, or a chip provided in the terminal device. The communication device comprises a communication interface, a processor and optionally a memory. Wherein the memory is adapted to store a computer program or instructions, and the processor is coupled to the memory and the communication interface, and when the processor executes the computer program or instructions, the communication apparatus is adapted to perform the method performed by the terminal device in the above-mentioned method embodiments.

In a sixth aspect, a communication apparatus is provided, where the communication apparatus may be the network device in the above method embodiment, or a chip disposed in the network device. The communication device comprises a communication interface, a processor and optionally a memory. Wherein the memory is used for storing a computer program or instructions, and the processor is coupled with the memory and the communication interface, and when the processor executes the computer program or instructions, the communication device is caused to execute the method executed by the network device in the above method embodiment.

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

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

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

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

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

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

In the present application, the names of the terminal device, the network device and the communication apparatus do not limit the devices themselves, and in actual implementation, the devices may appear by other names. Provided that the function of each device is similar to that of the present application, and that the devices are within the scope of the claims of the present application and their equivalents.

Drawings

Fig. 1 is a flowchart of transmitting a PDSCH in an SPS manner according to an embodiment of the present application;

fig. 2 is an exemplary diagram of receiving a PDSCH according to an embodiment of the present application;

FIG. 3 is a diagram illustrating an example of sending feedback information based on an enhanced dynamic codebook mode according to an embodiment of the present application;

fig. 4 is an exemplary diagram for transmitting feedback information based on a one-time feedback codebook mode according to an embodiment of the present application;

fig. 5 is a block diagram of a mobile communication system according to an embodiment of the present application;

fig. 6 is a flowchart of a method for sending feedback information according to an embodiment of the present application;

FIG. 6A is a diagram illustrating an example of feedback positions based on an enhanced dynamic codebook mode according to an embodiment of the present application;

FIG. 7 is a diagram illustrating an example of sending feedback information based on an enhanced dynamic codebook mode according to an embodiment of the present application;

FIG. 8 is a diagram illustrating an example of sending feedback information based on an enhanced dynamic codebook mode according to an embodiment of the present application;

FIG. 9 is a diagram illustrating an example of sending feedback information based on an enhanced dynamic codebook mode according to an embodiment of the present application;

fig. 10 is a flowchart of a method for sending feedback information according to an embodiment of the present application;

fig. 11 is an exemplary diagram for transmitting feedback information based on a one-time feedback codebook mode according to an embodiment of the present application;

fig. 12 is a diagram illustrating an example of sending feedback information based on a one-time feedback codebook mode according to an embodiment of the present application;

fig. 13 is an exemplary diagram for transmitting feedback information based on a one-time feedback codebook mode according to an embodiment of the present application;

fig. 14 is a flowchart of a method for sending feedback information according to an embodiment of the present application;

fig. 15 is a diagram illustrating an exemplary configuration of a communication device according to an embodiment of the present application;

fig. 16 is a diagram illustrating a composition example of a communication device according to an embodiment of the present application.

Detailed Description

The terms "first," "second," and "third," etc. in the description and claims of this application and the above-described drawings are used for distinguishing between different objects and not for limiting a particular order.

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

For clarity and conciseness of the following descriptions of the various embodiments, a brief introduction to the related art is first given:

generally, in order to reduce overhead of control commands, the network device may transmit the PDSCH to the terminal device in the SPS manner. For example, as shown in fig. 1, a flowchart for transmitting a PDSCH by using an SPS method according to an embodiment of the present application is provided.

S101, the network equipment sends configuration information to the terminal equipment.

The configuration information is used for indicating the terminal equipment to configure an SPS configuration. The SPS configuration includes an SPS index (index), an SPS priority, and an SPS period P. The SPS index is used to identify the SPS configuration. The SPS index may also be referred to as an SPS Identification (ID). The SPS priority is a priority level of the SPS configuration. The SPS period P is the number of time units of the time unit interval where the SPS configures the adjacent 2 PDSCHs.

It should be noted that a time unit may refer to a time slot or a subframe. The division manner of the time domain resource is not limited. For example, a slot may include, for example, 14 time domain symbols, and a mini-slot may include less than 14 time domain symbols, such as 2, 3, 4, 5, 6, or 7, etc.; or, for example, a timeslot may include 7 time domain symbols, and a mini timeslot includes time domain symbols less than 7, such as 2 or 4, and the specific value is not limited. The time domain symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol. For a timeslot with subcarrier spacing of 15 kilohertz (kHz), including 14 time domain symbols, the corresponding time length is 1 ms; for a time slot with a subcarrier spacing of 60kHz, comprising 12 or 14 time domain symbols, the corresponding time length is shortened to 0.25 ms.

The configuration information may be higher layer signaling. Higher layer signaling may refer to signaling by a higher layer protocol layer. The higher layer protocol layer is at least one protocol layer above the physical layer. The higher layer protocol layer may specifically include at least one of the following protocol layers: a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Resource Control (RRC) layer, and a non-access stratum (NAS) layer.

S102, the terminal equipment receives the configuration information from the network equipment.

And after receiving the configuration information, the terminal equipment determines the index, priority and/or period P and other information of the SPS configuration.

S103, the network equipment sends indication information to the terminal equipment.

The indication information is used for indicating activation of the SPS configuration. The indication information comprises the SPS index, a time unit of the PDSCH corresponding to the SPS configuration, a time unit of feedback information of the PDSCH corresponding to the SPS configuration, a starting symbol S in the time unit of the PDSCH and the length L.

For example, the indication information may be carried in Downlink Control Information (DCI). DCI contains K0 and K1. The K0 represents the difference between the number of the time unit receiving the DCI and the number of the time unit receiving the SPS PDSCH. The K1 represents the difference between the number of the time unit in which the SPS PDSCH is transmitted and the number of the time unit in which the feedback information of the PDSCH is fed back. DCI also includes the SPS index, starting symbol S, and length L.

S104, the terminal equipment receives the indication information from the network equipment.

The indication information is used for indicating activation of the SPS configuration. And after receiving the indication information, the terminal equipment determines the resources for receiving the SPS PDSCH under the SPS configuration according to the indication information.

And S105, the network equipment sends the SPS PDSCH to the terminal equipment according to the indication information.

S106, the terminal equipment receives the SPS PDSCH from the network equipment according to the indication information.

In some embodiments, the terminal device may determine that there is a PDCCH sent to itself in the first time unit through PDCCH blind detection. And acquiring the information of the SPS PDSCH scheduled by the DCI by analyzing the DCI carried by the PDCCH. For example, a second time unit where the SPS PDSCH is located is determined according to the first time unit and K0 indicated in the DCI, and a time domain resource location or a time domain location occupied by the SPS PDSCH in the second time unit is determined according to a starting symbol S and a length L of the SPS PDSCH indicated by the DCI.

In addition, after the second time unit, the terminal device may determine, according to the SPS period P, a time unit in which another PDSCH corresponding to the SPS configuration continues to be received, and determine, according to the starting symbol S and the length L, a time domain position of the other PDSCH corresponding to the SPS configuration.

For example, as shown in fig. 2, it is assumed that K0 is 0, the start symbol S is symbol 4, and the length L is 4 symbols. If the terminal device receives the DCI in slot n, the terminal device receives the first SPS PDSCH in the 4 th symbol to the 7 th symbol of slot n since K0 is 0.

If the SPS period P is 1 timeslot, the terminal device receives the SPS PDSCH on the 4 th symbol to the 7 th symbol of each timeslot from the timeslot n. Optionally, if the SPS period P is 2, the terminal device receives the SPS PDSCH on the 4 th symbol to the 7 th symbol of the corresponding time slot at an interval of one time slot from the time slot n.

If K1 is equal to 2, the terminal device transmits a Physical Uplink Control Channel (PUCCH) carrying feedback information of the SPS PDSCH in slot n + 2. The feedback information may be data reception success or failure information, such as HARQ-ACK/Negative Acknowledgement (NACK). Optionally, if K1 is 4, the terminal device feeds back the feedback information of the SPS PDSCH on time slot n + 4.

In an NR system, a network device may configure a terminal device with multiple SPS configurations. The parameters included in each SPS configuration may be different. Different SPS indexes indicate different SPS configurations. The priority of different SPS configurations may be the same or different. The SPS periods of different SPS configurations may be the same or different. Alternatively, the network device may instruct the terminal device to configure a plurality of SPS configurations through different configuration information according to the method of step S101.

The network device may instruct the terminal device to activate a plurality of SPS configurations by different indication information according to the method of step S104. For example, multiple SPS configurations are activated by different DCIs, which are referred to as activation DCIs of SPS configurations.

The terminal device may be instructed to release the one or more SPS configurations if the network device determines that the one or more SPS configurations do not need to be used according to the scheduling policy.

In some embodiments, the network device may send release indication information to the terminal device, instructing the terminal device to release one SPS configuration. Optionally, the release indication information may include an SPS index.

In other embodiments, the network device may instruct the terminal device to release the plurality of SPS configurations. Optionally, the network device configures a joint release set for the terminal device, where the joint release set includes a plurality of SPS indexes, and the network device may instruct to release the plurality of SPS configurations in the joint release set.

For example, the joint release set may be presented in a tabular form. Table 1 shows a schematic diagram of the joint release set.

TABLE 1

As can be seen from table 1, each row in the table represents an element, including an identification of the SPS index group and the SPS index included in the SPS index group. The set of SPS index set identifier 1 includes SPS ID 1, SPS ID 3, and SPS ID 5. The set of SPS index set identification 2 includes SPS ID 2, SPS ID 4, and SPS ID 6.

Optionally, the release indication information may include an identification of the SPS index group. For example, the release indication information includes identifier 1 of the SPS index group, and the terminal device releases the SPS configuration corresponding to SPS ID 1, the SPS configuration corresponding to SPS ID 3, and the SPS configuration corresponding to SPS ID 5 according to the release indication information. For another example, the release indication information includes an identifier 2 of the SPS index group, and the terminal device releases the SPS configuration corresponding to SPS ID 2, the SPS configuration corresponding to SPS ID 4, and the SPS configuration corresponding to SPS ID 6 according to the release indication information.

Optionally, after releasing the SPS configuration, the terminal device may send a feedback information to the network device, where the feedback indicates that the released SPS configuration has been released, and the feedback information is 1bit (bit). If the terminal device releases a plurality of SPS configurations, the feedback information can be 1bit, thereby saving the signaling overhead.

In addition, in order to solve the problem of less available frequency domain resources in the Licensed spectrum, a Licensed-Assisted Access Long Term Evolution (LAA-LTE) technology is introduced into Release 13(Release 13) of Long Term Evolution (LTE), an enhanced Licensed-Assisted Access (eLAA) technology is introduced into Release 14, an available spectrum can be expanded to an unlicensed frequency band through a Carrier Aggregation (CA) technology, and downlink and uplink information is transmitted on the unlicensed spectrum through the assistance of the Licensed spectrum. The Multefire standard further implements uplink and downlink transmissions (including a traffic channel and a control channel) of the LTE system in an unlicensed spectrum on the basis of LAA and eLAA, without depending on the assistance of the licensed spectrum, i.e., standalon.

For example, the sending end may send data in a Listen Before Talk (LBT) manner, that is, after the sending end senses a free channel, the sending end sends data on the free channel by using a licensed spectrum and an unlicensed spectrum, or sends data by using the unlicensed spectrum. The listening of the idle channel is called LBT listening success. The lack of sensing of a free channel is referred to as LBT sensing failure. The Maximum Time length for the sender to occupy the Channel to continuously send data is called Maximum Channel Occupancy Time (MCOT). After the channel is continuously occupied to the length, the channel needs to be released, and the channel can be occupied again to transmit data after LBT is executed again. The sending end is terminal equipment or network equipment.

And after receiving the data from the network equipment, the terminal equipment sends feedback information to the network equipment. If the terminal device does not monitor the idle channel, the feedback information is sent overtime to retransmit the data, thereby increasing transmission delay and wasting resources.

In a New Radio Un-license (NRU) system, a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook mode (e.g., an enhanced dynamic codebook mode or a one-time feedback codebook mode) is introduced. When the terminal device seizes an idle channel, the feedback information which is not sent before and the current feedback information can be fed back to the network device. Therefore, the times of data retransmission are reduced, the resource utilization rate is improved, and the data transmission delay is reduced. The enhanced dynamic codebook mode may be referred to as enhanced dynamic-r 16. The mode of the one-time feedback codebook may be referred to as pdsch-HARQ-ACK-oneshodfeedback-r 16.

The enhanced dynamic codebook mode refers to that the feedback information of the PDSCH with the same group identification is fed back in the same HARQ-ACK codebook. That is, the group identification and the HARQ-ACK codebook are in one-to-one correspondence. For example, group id 1 corresponds to codebook 1, and group id 2 corresponds to codebook 2. In some embodiments, a group identity may be included in the DCI, indicating the group identity of the PDSCH. Understandably, if the K1 is a non-numerical value, it indicates not to send feedback information and waits for a feedback time; if K1 is a numerical value, it indicates that feedback information is sent.

For example, as shown in fig. 3, the network device transmits a first DCI to the terminal device, where the first DCI indicates to schedule PDSCH 1. The first DCI may include a first group identity and K1. Understandably, PDSCH 1 belongs to the first identified group. When K1 is 0, the time slot for transmitting the feedback information corresponding to PDSCH 1, that is, the time slot n for receiving PDSCH 1, is instructed to transmit the feedback information corresponding to PDSCH 1.

And the network equipment sends a second DCI to the terminal equipment, wherein the second DCI indicates the dispatching of the PDSCH 2. The second DCI may include a second group identification and K1. Understandably, PDSCH 2 belongs to the second identified group. When K1 is X, the ue instructs not to transmit feedback information corresponding to PDSCH 2 and waits for a feedback timing.

And the network equipment sends a third DCI to the terminal equipment, wherein the third DCI indicates the dispatching of the PDSCH 3. The third DCI may include a second group identity and K1. It is understood that PDSCH 3 belongs to the second identified group. When K1 is equal to 1, the time slot for transmitting the feedback information corresponding to PDSCH 3, that is, the time slot n +1 for receiving PDSCH 3, is instructed to transmit the feedback information corresponding to PDSCH 3. Since PDSCH 2 belongs to the second identified group, and feedback information corresponding to PDSCH 2 is transmitted.

The one-time feedback codebook mode means that the number of feedback bits depends on the number of HARQ processes configured in a higher layer. Each HARQ process corresponds to a bit field. The number of bits included in one bit field depends on the number of Transport Blocks (TBs) and the number of Code Block Groups (CBGs) per TB. And filling feedback information of the PDSCH corresponding to the HARQ process in a bit field corresponding to the HARQ process. If a certain HARQ process has no PDSCH, the bit field of the HARQ process is NACK-filled.

For example, as shown in fig. 4, the number of HARQ processes is 8, each HARQ process has 2 TBs, each TB has 4 CBGs, then the feedback bit corresponding to each HARQ process is 2 × 4-8 bits, and the terminal device feeds back to the network device the bit number corresponding to 8 HARQ processes each time is 2 × 4-8-64 bits.

If the network device instructs the terminal device to release the plurality of SPS configurations, since the plurality of SPS configurations may correspond to the plurality of feedback positions, the terminal device feeds back release success information at which feedback positions, and a corresponding mechanism is not specified in the current protocol.

In order to solve the problem of how to feed back release success information of at least two SPS configurations based on an enhanced dynamic codebook mode or a one-time feedback codebook mode, embodiments of the present application provide a method for sending feedback information. The method comprises the following steps: after the terminal device receives the first indication information from the network device, the terminal device sends feedback information at M feedback positions of the feedback positions corresponding to the N SPS configurations, and the feedback information is used for indicating that the N SPS configurations are successfully released. And the feedback positions corresponding to the N SPS configurations correspond to at least one codebook. The first indication information is used for indicating that the N semi-persistent scheduling (SPS) configurations are released. N is an integer greater than or equal to 2; m is an integer greater than or equal to 1. M is less than or equal to the number of feedback positions corresponding to the N SPS configurations. Therefore, the terminal device can determine at least one feedback position from the feedback positions corresponding to the at least two SPS configurations to feed back the successful release information of the at least two SPS configurations, and therefore the phenomenon that the successful release information is sent out overtime and the network device cannot transmit data by using the resources occupied by the plurality of SPS configurations, and resources are wasted is avoided.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 5 is an architecture diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in fig. 5, the mobile communication system includes a core network device 510, a radio access network device 520, and at least one terminal device (e.g., a terminal device 530 and a terminal device 540 in fig. 5). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. Fig. 5 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which is not shown in fig. 5. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

The radio access network device is an access device that the terminal device accesses to the mobile communication system in a wireless manner, and may be a base station (base station), an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, and the like; or may be a module or a unit that performs part of the functions of the base station, for example, a Centralized Unit (CU) or a Distributed Unit (DU). The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device. In this application, the radio access network device 520 may be referred to as the network device 520 for short, and if no specific description is provided, the network devices are all referred to as radio access network devices.

A terminal device may also be referred to as a terminal, User Equipment (UE), a mobile station, a mobile terminal, etc. The terminal device can be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiving function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote operation, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

The present application may be applied to a 5G New Radio (NR) system, and may also be applied to other communication systems, as long as an entity in the communication system needs to send transmission direction indication information, and another entity needs to receive the indication information, and determine a transmission direction within a certain time according to the indication information.

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

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

In various embodiments of the present application, the time domain symbol may be an OFDM symbol, or may be a single carrier-frequency division multiplexing (SC-FDM) symbol. The symbols in the embodiments of the present application all refer to time domain symbols, if not otherwise specified.

It should be understood that, in the embodiment of the present application, the PUCCH is only used as an example of an uplink control channel, and in different systems and different scenarios, a data channel may have different names, which is not limited in the embodiment of the present application.

Fig. 6 is a flowchart of a method for sending feedback information according to an embodiment of the present disclosure. Here, the network device 520 and the terminal device 530 are described as examples. As shown in fig. 6, the method may include:

s601, the network device 520 sends the first indication information to the terminal device 530.

The first indication information is used for indicating that N SPS configurations are released, and N is an integer greater than or equal to 2. Optionally, the first indication information includes SPS indexes of the N SPS configurations. The first indication information may be carried in DCI.

Optionally, network device 520 may configure terminal device 530 with multiple SPS index groups. Each SPS index group includes a plurality of SPS indexes. Each SPS index set may correspond to an identification of an SPS index set. The first indication information may include an identification of one or more SPS index groups, indicating that SPS configurations corresponding to SPS indexes included in the one or more SPS index groups are released. After receiving the first indication information, the terminal device 530 may release the SPS configuration corresponding to the SPS indexes included in the one or more SPS index groups according to the indication of the first indication information.

In some embodiments, the DCI may be used only to indicate that the N SPS configurations are released, including no other information. In other embodiments, the DCI is also used to activate other SPS configurations, which may include indices of other SPS configurations.

S602, the terminal device 530 receives the first indication information from the network device 520.

The first indication information is used for indicating that N SPS configurations are released, and N is an integer greater than or equal to 2.

S603, the terminal device 530 sends feedback information to the network device 520 at M feedback positions of the feedback positions corresponding to the N SPS configurations.

After receiving the first indication information, the terminal device 530 releases the N SPS configurations. It is understood that releasing the N SPS configurations may refer to deleting the configured N SPS configurations, and it is not necessary to continue to receive data corresponding to the N SPS configurations at resource locations of the N SPS configurations. After the terminal device 530 successfully releases the N SPS configurations, it sends feedback information to the network device 520, where the feedback information is used to indicate that the N SPS configurations are successfully released. The feedback positions corresponding to the N SPS configurations correspond to at least one codebook. It is to be appreciated that the terminal device 530 can transmit feedback information to the network device 520 on at least one of the codebooks corresponding to the N SPS configurations. M is an integer greater than or equal to 1. Feedback information for successfully releasing the N SPS configurations is carried on at least one codebook.

In a first possible implementation, the terminal device 530 may send feedback information to the network device 520 based on the enhanced dynamic codebook mode. The terminal device 530 may determine codebooks corresponding to the N SPS configurations according to the group identifiers of the codebooks, and send feedback information to the network device 520 on M codebooks in the codebooks corresponding to the N SPS configurations.

It can be understood that the feedback positions corresponding to the N SPS configurations are K codebooks, where K is an integer greater than or equal to 2. The M feedback positions are M codebooks in the K codebooks. Each of the K codebooks corresponds to a group id, that is, there is a correspondence between the K group ids and the K codebooks. It is to be appreciated that the N SPS configurations may correspond to K group identifications. The feedback positions corresponding to the N SPS configurations may be the same or different. For example, the feedback position corresponding to the ith SPS configuration is a jth codebook, and the group identifier corresponding to the jth codebook is a jth group identifier, where i is an integer, i is greater than or equal to 1 and less than or equal to N, j is an integer, j is greater than or equal to 1 and less than or equal to K, and i may be equal to j, or i is not equal to j.

For example, assuming that N is 3, it means that the network device 520 indicates that 3 SPS configurations, i.e., the first SPS configuration, the second SPS configuration, and the third SPS configuration, are released. K is 2, which means that feedback positions corresponding to the 3 SPS configurations are 2 codebooks, i.e., the first codebook and the second codebook. The feedback position corresponding to the first SPS configuration is a first codebook, the feedback position corresponding to the second SPS configuration is a second codebook, and the feedback position corresponding to the third SPS configuration is the first codebook. The group identifier corresponding to the first codebook is a first group identifier. The group identifier corresponding to the second codebook is a second group identifier.

Optionally, before the terminal device 530 sends the feedback information to the network device 520 at M feedback positions of the feedback positions corresponding to the N SPS configurations, the terminal device 530 needs to determine K codebooks corresponding to the N SPS configurations. The method for the terminal equipment to determine the K codebooks corresponding to the N SPS is as follows:

1) the terminal device 530 may determine a group identifier corresponding to each SPS configuration according to the activated DCI of each SPS configuration in the N SPS configurations. For example, the activation DCI of SPS configuration 1 indicates that the group identifier corresponding to SPS configuration 1 is identity 1. As another example, the activation DCI of SPS configuration 3 indicates that the group identifier corresponding to SPS configuration 3 is identity 2. The N SPS configurations correspond to a total of K group identities.

2) Each group identifier corresponds to one codebook, and K group identifiers correspond to K codebooks, so that K codebooks corresponding to N SPS configurations are determined.

The 1 group id corresponds to the 1 codebook one to one, and reference may be specifically made to the introduction of the enhanced dynamic codebook mode, which is not described again. The terminal device may determine the corresponding codebook according to the group identifier.

For example, as shown in fig. 6A, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The first SPS configuration corresponds to a first set of identifiers, the third SPS configuration corresponds to a second set of identifiers, and the fifth SPS configuration corresponds to the first set of identifiers. The group identity of the first codebook is a first group identity. The group identity of the second codebook is a second group identity. Therefore, the feedback position corresponding to the first SPS configuration is the first codebook, the feedback position corresponding to the third SPS configuration is the second codebook, and the feedback position corresponding to the fifth SPS configuration is the first codebook.

The terminal device 530 determines the M feedback positions according to M group identifiers of the K group identifiers. And M is less than or equal to K.

If M is equal to K, it indicates that the terminal device 530 uses K codebooks to send feedback information to the network device 520.

If M is smaller than K, it indicates that the terminal device 530 sends feedback information to the network device 520 by using M codebooks in the K codebooks.

In some embodiments, the M feedback positions are feedback positions corresponding to a minimum index SPS configuration of the N SPS configurations, where M is 1. That is to say, the M feedback positions are target codebooks, and the target codebooks are codebooks corresponding to the minimum index SPS configuration among the N SPS configurations.

For example, as shown in fig. 7, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first codebook, the feedback position corresponding to the third SPS configuration is a second codebook, and the feedback position corresponding to the fifth SPS configuration is a first codebook. The group identifier corresponding to the first codebook is a first group identifier. The group identifier corresponding to the second codebook is a second group identifier. In the first SPS configuration, the third SPS configuration, and the fifth SPS configuration, if the index of the first SPS configuration is the smallest, the terminal device 530 sends the feedback information at the feedback position corresponding to the first SPS configuration, that is, sends the feedback information on the first codebook.

In other embodiments, the M feedback positions are feedback positions corresponding to the N SPS configurations, where M is greater than or equal to 2. It can be appreciated that the terminal device 530 transmits the feedback information using all codebooks corresponding to the N SPS configurations.

For example, as shown in fig. 8, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first codebook, the feedback position corresponding to the third SPS configuration is a second codebook, and the feedback position corresponding to the fifth SPS configuration is a first codebook. The group identifier corresponding to the first codebook is a first group identifier. The group identifier corresponding to the second codebook is a second group identifier. The terminal device 530 sends feedback information at the feedback position corresponding to the first SPS configuration, the feedback position corresponding to the third SPS configuration, and the feedback position corresponding to the fifth SPS configuration.

In other embodiments, the M feedback positions are predetermined. By preset is understood that it is predefined in a standard or protocol. The terminal device 530 and the network device 520 need to store the predefined M feedback positions in advance. After the terminal device 530 or the network device 520 acquires the first indication information, M feedback positions may be acquired locally, and the feedback information is sent to the network device 520 at the M feedback positions. It is understood that the preset M feedback positions may be all or part of the feedback positions corresponding to the N SPS configurations. Or the preset M feedback positions are not the feedback positions corresponding to the N SPS configurations. For example, the protocol is preset in a first codebook and/or a second codebook of the K codebooks to send feedback information.

Illustratively, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first codebook, the feedback position corresponding to the third SPS configuration is a second codebook, and the feedback position corresponding to the fifth SPS configuration is a first codebook. For example, as shown in (a) of fig. 9, for example, the protocol sets in advance that feedback information is transmitted in the first codebook, and the terminal device 530 transmits the feedback information in the first codebook. As shown in fig. 9 (b), the protocol sets in advance that feedback information is transmitted in the second codebook, and the terminal device 530 transmits the feedback information in the second codebook. As shown in (c) of fig. 9, the protocol sets in advance that feedback information is transmitted in the first codebook and the second codebook, and the terminal device 530 transmits the feedback information in the first codebook and the second codebook.

In other embodiments, the terminal device 530 may determine the M feedback locations according to the dynamic indication information of the network device 520. For example, as shown in fig. 10, before sending feedback information at M feedback positions of the feedback positions corresponding to the N SPS configurations, i.e., S603, the method further includes the following steps.

S1001, the network device 520 sends second indication information to the terminal device 530, where the second indication information is used to indicate that one of the feedback positions corresponding to the N SPS configurations is the M feedback positions, and at this time, M is 1.

For example, the network device 520 sends the second indication information to the terminal device 530, where the first codebook in the K codebooks is the M feedback positions. The terminal equipment sends feedback information in one of the K codebooks. Optionally, the second indication information may be carried in DCI.

S1002, the terminal device 530 receives the fourth indication information from the network device 520.

For example, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first codebook, the feedback position corresponding to the third SPS configuration is a second codebook, and the feedback position corresponding to the fifth SPS configuration is a first codebook. The group identifier corresponding to the first codebook is a first group identifier. The group identifier corresponding to the second codebook is a second group identifier. For example, as shown in (a) in fig. 9, if the network device 520 indicates the first codebook as a feedback location, the terminal device 530 sends feedback information in the first codebook. As shown in (b) of fig. 9, if the network device 520 indicates that the second codebook is a feedback position, the terminal device 530 sends feedback information in the second codebook.

In a second possible implementation, the terminal device 530 may send feedback information to the network device 520 based on the one-time feedback codebook mode. The terminal device 530 may determine bit fields corresponding to the N SPS configurations according to the HARQ process index, and send feedback information to the network device 520 over M bit fields of the bit fields corresponding to the N SPS configurations.

It can be appreciated that the feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook. The M feedback positions are M bit fields in the P bit fields. M is less than or equal to P. Understandably, if N SPS configurations are all activated, N ═ P; n < P if part of N SPS configurations are activated. The feedback position corresponding to the ith SPS configuration is a jth bit field, the jth bit field is one of the P bit fields, i is an integer, i is more than or equal to 1 and less than or equal to N, j is an integer, and j is more than or equal to 1 and less than or equal to P.

The 1 codebook includes Q bit fields. Each bit field in the Q bit fields corresponds to one HARQ process, each bit field in the Q bit fields comprises at least one bit, and Q is an integer. P is less than or equal to Q.

For example, as shown in fig. 4, 1 codebook corresponding to 8 HARQ processes is provided, and the 1 codebook includes 8bit fields.

In addition, each HARQ process in Q HARQ processes corresponds to an HARQ process index, that is, there is a corresponding relationship between Q HARQ process indexes and Q bit fields. It can be understood that there is a corresponding relationship between P HARQ process index numbers and P bit fields, and P HARQ process index numbers corresponding to N SPS configurations.

Optionally, before the terminal device 530 sends the feedback information to the network device 520 at M of the feedback positions corresponding to the N SPS configurations, P bit fields corresponding to the N SPS configurations need to be determined. The method for the terminal equipment to determine the P bit fields corresponding to the N SPS is as follows:

1) the terminal device can determine the time domain resource position corresponding to each SPS configuration according to the activation DCI and the SPS period of each SPS configuration in the N SPS configurations, so that the HARQ process index number corresponding to each SPS configuration can be determined. The N SPS configurations may have P SPS configurations activated, and each of the P activated SPS configurations corresponds to one HARQ process index, such that the N SPS configurations correspond to P HARQ process indices.

2) Each HARQ process index number corresponds to one bit field in the codebook, and P HARQ process index numbers correspond to P bit fields in 1 codebook, so that P bit fields corresponding to N SPS configurations are determined.

Each HARQ process index corresponds to a bit field in the codebook, and reference may be specifically made to the introduction of the one-time feedback mode, which is not described again. The terminal device may determine a bit field corresponding to each SPS configuration according to the HARQ process index corresponding to each SPS configuration.

Terminal device 530 determines the M feedback positions according to M HARQ process index numbers of the P HARQ process index numbers. And M is less than or equal to K.

If M is equal to N, it indicates that the terminal device 530 uses P bit fields to send feedback information to the network device 520.

If M is smaller than N, it indicates that the terminal device 530 sends feedback information to the network device 520 using M of the P bit fields.

In some embodiments, the M feedback positions are feedback positions corresponding to a minimum index SPS configuration of the P SPS configurations, where M is 1. That is, the M feedback positions are target bit fields corresponding to the minimum index SPS configuration among the N SPS configurations.

For example, as shown in fig. 11, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first bit field, the feedback position corresponding to the third SPS configuration is a third bit field, and the feedback position corresponding to the fifth SPS configuration is a fifth bit field. And the HARQ process index number corresponding to the first bit field is the first HARQ process index number. And the HARQ process index number corresponding to the third bit field is the third HARQ process index number. And the HARQ process index corresponding to the fifth bit field is the fifth HARQ process index. In the first SPS configuration, the third SPS configuration, and the fifth SPS configuration, if the index of the first SPS configuration is minimum, the terminal device 530 sends feedback information at a feedback position corresponding to the first SPS configuration. Specifically, the terminal device 530 determines a first bit field according to the first HARQ process index, and sends the feedback information using the first bit field.

In other embodiments, the M feedback positions are feedback positions corresponding to the N SPS configurations, where M is greater than or equal to 2. It is to be appreciated that the terminal device 530 transmits the feedback information using all bit fields corresponding to the N SPS configurations.

For example, as shown in fig. 12, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first bit field, the feedback position corresponding to the third SPS configuration is a third bit field, and the feedback position corresponding to the fifth SPS configuration is a fifth bit field. And the HARQ process index number corresponding to the first bit field is the first HARQ process index number. And the HARQ process index number corresponding to the third bit field is the third HARQ process index number. And the HARQ process index corresponding to the fifth bit field is the fifth HARQ process index. The terminal device 530 sends feedback information at the feedback position corresponding to the first SPS configuration, the feedback position corresponding to the third SPS configuration, and the feedback position corresponding to the fifth SPS configuration. Specifically, the terminal device 530 determines a first bit field according to the first HARQ process index, determines a third bit field according to the third HARQ process index, determines a fifth bit field according to the fifth HARQ process index, and sends feedback information in the first bit field, the third bit field, and the fifth bit field, respectively.

In other embodiments, the M feedback positions are predetermined. By preset is understood that it is predefined in a standard or protocol. The terminal device 530 and the network device 520 need to store the predefined M feedback positions in advance. After the terminal device 530 or the network device 520 acquires the first indication information, M feedback positions may be acquired locally, and the feedback information is sent to the network device 520 at the M feedback positions. It is understood that the preset M feedback positions may be all or part of the feedback positions corresponding to the N SPS configurations. Or the preset M feedback positions are not the feedback positions corresponding to the N SPS configurations. For example, the protocol presets one or more bit fields of the P bit fields to transmit the feedback information.

For example, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. The feedback position corresponding to the first SPS configuration is a first bit field, the feedback position corresponding to the third SPS configuration is a third bit field, and the feedback position corresponding to the fifth SPS configuration is a fifth bit field. And the HARQ process index number corresponding to the first bit field is the first HARQ process index number. And the HARQ process index number corresponding to the third bit field is the third HARQ process index number. And the HARQ process index corresponding to the fifth bit field is the fifth HARQ process index. The terminal device 530 sends feedback information at least one of the feedback position corresponding to the first SPS configuration, the feedback position corresponding to the third SPS configuration, and the feedback position corresponding to the fifth SPS configuration.

Illustratively, as shown in fig. 11, the terminal device 530 sends feedback information in the first bit field. As shown in fig. 12, the terminal device 530 transmits feedback information in the first bit field, the third bit field, and the fifth bit field, respectively. As shown in (a) of fig. 13, the terminal device 530 transmits the feedback information in the third bit field. As shown in (b) of fig. 13, the terminal device 530 transmits the feedback information in the fifth bit field. As shown in (c) of fig. 13, the terminal device 530 transmits feedback information in the third bit field and the fifth bit field. Alternatively, the terminal device 530 transmits the feedback information in the first bit field and the third bit field. Alternatively, the terminal device 530 transmits the feedback information in the first bit field and the fifth bit field. Without limitation.

For example, the network device 520 sends the second indication information to the terminal device 530 to indicate that one of the P bit fields is the M feedback positions. The terminal device sends the feedback information in one of the P bit fields. Optionally, the second indication information may be carried in DCI.

For example, the network device 520 indicates that the first SPS configuration, the third SPS configuration, and the fifth SPS configuration are released. If the network device 520 indicates that the first bit field is the feedback position, the terminal device 530 determines the first bit field according to the first HARQ process index number, and sends the feedback information in the first bit field. If the network device 520 indicates that the third bit field is the feedback location, the terminal device 530 determines the third bit field according to the third HARQ process index, and sends the feedback information in the third bit field. If the network device 520 indicates that the fifth bit field is a feedback location, the terminal device 530 determines the fifth bit field according to the index number of the fifth HARQ process, and sends feedback information in the fifth bit field. Exemplary, feedback positions as shown in any of fig. 11-13.

S604, the network device 520 receives the feedback information from the terminal device 530 at M feedback positions of the feedback positions corresponding to the N SPS configurations.

The network device 520 receives feedback information based on the enhanced dynamic codebook mode or based on the one-time feedback codebook mode. For a detailed explanation of the M feedback positions, reference may be made to the description of S604, which is not repeated.

Further, as shown in fig. 14, before the terminal device 530 receives the first indication information, i.e., S601, the method further includes:

s1401, the network device 520 sends N pieces of third indication information to the terminal device 530.

Each indication information in the third indication information is used for indicating one SPS configuration for the terminal equipment, and the one SPS configuration comprises at least one of the following information: SPS index, SPS priority, and SPS periodicity.

S1402, the terminal device 530 receives the N third indication information from the network device 520.

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

Fig. 15 and 16 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the terminal device or the network device in the above method embodiments, so that the beneficial effects of the above method embodiments can also be achieved. In the embodiment of the present application, the communication apparatus may be the terminal device 530 or the terminal device 540 shown in fig. 5, may also be the radio access network device 520 shown in fig. 5, and may also be a module (e.g., a chip) applied to the terminal device or the network device.

As shown in fig. 15, the communication device 1500 includes a processing unit 1510 and a transceiving unit 1520. The communication apparatus 1500 is used to implement the functions of the terminal device or the network device in the method embodiments shown in fig. 6, fig. 10 or fig. 14.

When the communication apparatus 1500 is used to implement the functions of the terminal device in the method embodiment shown in fig. 6: the transceiving unit 1520 is configured to perform S602 and S603.

When the communication apparatus 1500 is used to implement the functions of the network device in the method embodiment shown in fig. 6: the transceiving unit 1520 is configured to perform S601 and S602.

When the communication apparatus 1500 is used to implement the functions of the terminal device in the method embodiment shown in fig. 10: the transceiving unit 1520 is configured to perform S602 and S603, and S1002.

When the communication apparatus 1500 is used to implement the functions of the network device in the method embodiment shown in fig. 10: the transceiving unit 1520 is used for S601 and S602, and S1001.

When the communication apparatus 1500 is used to implement the functions of the terminal device in the method embodiment shown in fig. 14: the transceiving unit 1520 is configured to perform S602 and S603, and S1002 and S1402.

When the communication apparatus 1500 is used to implement the functions of the network device in the method embodiment shown in fig. 14: the transceiving unit 1520 is used for S601 and S602, and S1001 and S1401.

The processing unit 1510 may be used to determine M feedback positions.

More detailed descriptions about the processing unit 1510 and the transceiving unit 1520 can be directly obtained by referring to the related descriptions in the method embodiments shown in fig. 6, fig. 10, or fig. 14, which are not repeated herein.

As shown in fig. 16, the communication device 1600 includes a processor 1610 and interface circuitry 1620. The processor 1610 and the interface circuit 1620 are coupled to each other. It is understood that the interface circuit 1620 may be a transceiver or an input-output interface. Optionally, the communications apparatus 1600 may further include a memory 1630 for storing instructions executed by the processor 1610 or for storing input data required by the processor 1610 to execute the instructions or for storing data generated by the processor 1610 after executing the instructions.

When the communication device 1600 is configured to implement the method shown in fig. 6, 10 or 14, the processor 1610 is configured to perform the functions of the processing unit 1510, and the interface circuit 1620 is configured to perform the functions of the transceiving unit 1520.

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

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

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

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

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a user device, or other programmable apparatus. The computer program or 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 program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or optical media such as Digital Video Disks (DVDs); it may also be a semiconductor medium, such as a Solid State Drive (SSD).

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

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

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

Claims

1. A method for transmitting feedback information, comprising:

receiving first indication information, wherein the first indication information is used for indicating that N semi-persistent scheduling (SPS) configurations are released, and N is an integer greater than or equal to 2;

sending feedback information at M feedback positions in the feedback positions corresponding to the N SPS configurations, wherein the feedback positions corresponding to the N SPS configurations correspond to at least one codebook, the feedback information is used for indicating that the N SPS configurations are successfully released, M is an integer greater than or equal to 1, and M is less than or equal to the number of the feedback positions corresponding to the N SPS configurations.

2. The method of claim 1, wherein the feedback positions corresponding to the N SPS configurations are K codebooks, wherein the M feedback positions are M codebooks from the K codebooks, M is less than or equal to K, and K is an integer greater than or equal to 2.

3. The method as claimed in claim 2, wherein the feedback positions corresponding to the N SPS configurations are K codebooks, comprising:

the N SPS configurations correspond to K group identifiers, and the K group identifiers and the K codebooks have corresponding relations.

4. The method of claim 1, wherein the feedback positions for the N SPS configurations are P bit fields in 1 codebook, wherein each bit field of the P bit fields comprises at least one bit, wherein the M feedback positions are M bit fields of the P bit fields, and wherein M is less than or equal to P.

5. The method as claimed in claim 4, wherein the feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook, and the method comprises:

the N SPS configurations correspond to P HARQ process index numbers, and the P HARQ process index numbers and the P bit fields have corresponding relations.

6. The method according to any of claims 1-5, wherein the M feedback positions are feedback positions corresponding to a smallest index SPS configuration of the N SPS configurations, and M is 1.

7. The method as recited in any of claims 1-5, wherein the M feedback positions are feedback positions corresponding to the N SPS configurations, and M is greater than or equal to 2.

8. The method according to any of claims 1-5, wherein before M of the feedback positions corresponding to the N SPS configurations send feedback information, the method further comprises:

and receiving second indication information, where the second indication information is used to indicate that one of the feedback positions corresponding to the N SPS configurations is the M feedback positions, and M is 1.

9. The method according to any one of claims 1-5, wherein the M feedback positions are predetermined.

10. The method according to any of claims 1-9, wherein prior to said receiving first indication information, the method further comprises:

receiving N pieces of third indication information, wherein each piece of the third indication information is used for indicating one SPS configuration for the terminal equipment, and the one SPS configuration comprises at least one of the following information: SPS index, SPS priority, and SPS periodicity.

11. A method of receiving feedback information, comprising:

sending first indication information, wherein the first indication information is used for indicating to release N semi-persistent scheduling (SPS) configurations, and N is an integer greater than or equal to 2;

receiving feedback information at M feedback positions of the feedback positions corresponding to the N SPS configurations, wherein the feedback positions corresponding to the N SPS configurations correspond to at least one codebook, the feedback information is used for indicating that the N SPS configurations are successfully released, M is an integer greater than or equal to 1, and M is less than or equal to the number of the feedback positions corresponding to the N SPS configurations.

12. The method of claim 11, wherein the feedback positions corresponding to the N SPS configurations are K codebooks, wherein the M feedback positions are M codebooks of the K codebooks, wherein M is less than or equal to K, and wherein K is an integer greater than or equal to 2.

13. The method as claimed in claim 12, wherein the feedback positions corresponding to the N SPS configurations are K codebooks, comprising:

14. The method as recited in claim 11, wherein the feedback positions for the N SPS configurations are P bit fields in 1 codebook, wherein each bit field of the P bit fields comprises at least one bit, wherein the M feedback positions are M bit fields of the P bit fields, and wherein M is less than or equal to P.

15. The method as claimed in claim 14, wherein the feedback positions corresponding to the N SPS configurations are P bit fields in 1 codebook, comprising:

the N SPS configurations correspond to P HARQ process index numbers, and the P HARQ process index numbers and P bit fields have corresponding relations.

16. The method according to any of claims 11-15, wherein the M feedback positions are feedback positions corresponding to a smallest index SPS configuration among the N SPS configurations, and wherein M is 1.

17. The method as recited in any one of claims 11-15, wherein said M feedback positions are feedback positions corresponding to said N SPS configurations, and wherein M is greater than or equal to 2.

18. The method as recited in any of claims 11-15, wherein prior to receiving feedback information at M of the feedback locations corresponding to the N SPS configurations, the method further comprises:

and sending second indication information, where the second indication information is used to indicate that one of the feedback positions corresponding to the N SPS configurations is the M feedback positions, and M is 1.

19. The method according to any of claims 11-15, wherein the M feedback positions are predetermined.

20. The method according to any of claims 11-19, wherein prior to said sending the first indication information, the method further comprises:

transmitting N pieces of third indication information, wherein each piece of the third indication information is used for indicating one SPS configuration for the terminal equipment, and the one SPS configuration comprises at least one of the following information: SPS index, SPS priority, and SPS periodicity.

21. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to a communications device other than the communications device, the processor being arranged to implement the method of any of claims 1 to 10 or the method of any of claims 11 to 20 by means of logic circuitry or executing code instructions.

22. A computer-readable storage medium, in which a computer program or instructions is stored which, when executed by a communication apparatus, implements the method of any one of claims 1 to 10, or implements the method of any one of claims 11 to 20.

23. A computer program, characterized in that when the computer program is executed by a communication apparatus, the communication apparatus implements the method of any one of claims 1 to 10, or implements the method of any one of claims 11 to 20.

24. A computer program product, characterized in that the computer program product comprises a computer program or instructions which, when executed by a communication device, implements the method of any one of claims 1 to 10, or implements the method of any one of claims 11 to 20.