CN113285788A

CN113285788A - Method for determining feedback resource and communication equipment

Info

Publication number: CN113285788A
Application number: CN202010105780.1A
Authority: CN
Inventors: 刘思綦; 纪子超; 潘学明; 李�根; 沈晓冬
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2021-08-20
Anticipated expiration: 2040-02-19
Also published as: CN113285788B; WO2021164729A1

Abstract

The embodiment of the invention discloses a method for determining feedback resources and communication equipment, which are used for correctly indicating the feedback resources corresponding to joint DCI. The method is performed by a communication device, the method comprising: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

Description

Method for determining feedback resource and communication equipment

Technical Field

The embodiment of the invention relates to the field of communication, in particular to a method for determining feedback resources and communication equipment.

Background

For enhanced control channel coverage considerations, cells are typically deployed on low-band carriers (carriers). However, the bandwidth of the low band carrier is usually insufficient and has been already deployed to other systems in large quantities, such as Long Term Evolution (LTE) system, the downlink signaling overhead of the cell is large, which affects the system capacity.

Based on this, the New Radio (NR) supports the design that one Downlink Control Information (DCI) schedules multiple carriers (Component carriers, CCs) or cells simultaneously, that is, combines with DCI (joint DCI) to reduce the Downlink Control signaling overhead. However, the current DCI design only supports one DCI to schedule one cell, and when a joint DCI schedules multiple carriers or cells, the corresponding feedback resources cannot be correctly indicated.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a method and a communication device for determining feedback resources, so as to correctly indicate corresponding feedback resources.

In a first aspect, a method for determining feedback resources is provided, the method being performed by a communication device, and the method comprising: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

In a second aspect, a communication device is provided, comprising: and the processing module is used for transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

In a third aspect, a terminal device comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of determining feedback resources according to the first aspect.

In a fourth aspect, a network device comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of determining feedback resources according to the first aspect.

In a fifth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of determining feedback resources according to the first aspect.

In the embodiment of the invention, by transmitting the feedback resource information, wherein the feedback resource information is used for indicating the target feedback resource corresponding to the joint DCI, the joint DCI schedules a plurality of carriers or cells, the corresponding feedback resource can be correctly indicated when the joint DCI schedules the plurality of carriers or cells, and the network equipment and the UE can be ensured to understand the feedback resource consistently.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 shows a schematic flow diagram of a method of determining feedback resources according to an embodiment of the invention;

FIG. 2 shows a schematic flow diagram of a method of determining feedback resources according to another embodiment of the invention;

FIG. 3 shows a schematic flow diagram of a method of determining feedback resources according to another embodiment of the invention;

FIG. 4 shows a schematic flow diagram of a method of determining feedback resources according to another embodiment of the invention;

FIG. 5 shows a schematic flow chart diagram of a method of determining feedback resources according to another embodiment of the present invention;

FIG. 6 shows a schematic flow chart diagram of a method of determining feedback resources according to another embodiment of the present invention;

FIG. 7 shows a schematic flow chart diagram of a method of determining feedback resources according to another embodiment of the present invention;

8a-8c illustrate a schematic diagram of determining at least one feedback time period in one embodiment of the invention;

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

fig. 10 is a schematic configuration diagram of a terminal device according to another embodiment of the present invention;

fig. 11 is a schematic structural diagram of a network device according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. "and/or" in various embodiments of the present specification means at least one of front and rear.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Long Term Evolution (LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD) System, a Universal Mobile Telecommunications System (UMTS) or Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G System, a New Radio (NR) System, or a subsequent Evolution communication System.

In the embodiment of the present invention, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a User Equipment (UE), a handset (handset), a portable device (portable Equipment), a vehicle (vehicle), etc., and the Terminal device may communicate with one or more core networks through a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the Terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile apparatus.

In the embodiment of the present invention, the network device is a device deployed in a radio access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of devices having a base station function may differ. For example, in an LTE network, called an Evolved node B (eNB or eNodeB), in a third Generation (3G) network, called a node B (node B), or a network device in a later Evolved communication system, etc., although the words are not limiting.

As shown in fig. 1, one embodiment of the present invention provides a method 100 of determining feedback resources, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s102: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

For the transmission of the downlink data packet, the user can feed back feedback information, i.e. HARQ-ACK information, on the uplink resource according to the receiving condition to inform the control node whether the transmission of the downlink data packet is successful or not. For example, the DCI may schedule a Physical Downlink Shared Channel (PDSCH) or may not schedule the PDSCH and be used to turn on or turn off the use of some resources, where the DCI may indicate a feedback resource, and the feedback information is used to indicate whether the user successfully receives the DCI.

In this step, feedback resource information is transmitted, where the feedback resource information is used to indicate a target feedback resource corresponding to the joint DCI, and a target feedback resource corresponding to a join DCI for scheduling multiple carriers or cells may be determined according to the feedback resource information, and the feedback information is transmitted using the target feedback resource.

In one implementation, feeding back the resource information includes: feedback resources and/or a time interval K, where K is a time interval between a reference time point and a corresponding target feedback resource.

According to the method for determining the feedback resources provided by the embodiment of the invention, the feedback resource information is transmitted, wherein the feedback resource information is used for indicating the target feedback resources corresponding to the joint DCI, the joint DCI schedules a plurality of carriers or cells, the corresponding feedback resources can be correctly indicated when the joint DCI schedules the plurality of carriers or cells, and the network equipment and the UE can be ensured to understand the feedback resources consistently.

As shown in fig. 2, one embodiment of the present invention provides a method 200 of determining feedback resources, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s202: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

This step may include the same or similar descriptions as step S102 in the embodiment of fig. 1, and the repeated parts are not described herein again.

In one implementation, the feedback resource information is transmitted via higher layer signaling; and/or transmitting the feedback resource information through the DCI, wherein the feedback resource information is configured through a higher layer signaling and/or indicated by the DCI, and the DCI indication comprises: the join DCI indication, and/or a single DCI (single DCI) indication associated with the join DCI.

The feedback resource information is indicated by the single DCI associated with the join DCI, for example, the join DCI does not indicate the feedback resource information itself, the feedback information corresponding to the join DCI is transmitted on the feedback resource indicated by the latest single DCI, or the join DCI and the single DCI have a preset association relationship, and the feedback information corresponding to the join DCI is transmitted on the feedback resource indicated by the corresponding single DCI.

The feedback resource may be a Physical Uplink Shared Channel (PUSCH) transmission timing (acquisition) and/or a Physical Uplink Control Channel (PUCCH) acquisition.

In one implementation, the feedback resource information transmitted through higher layer signaling may include: a set of one or more time intervals, and/or a set of one or more feedback resources. In other words, the set of one or more K { K }, and/or the set of one or more feedback resources, may be configured by higher layer signaling. The high-level signaling may be at least one of Radio Resource Control (RRC), Medium Access Control (MAC), Radio Link Control (RLC), Packet Data Convergence Protocol (PDCP), Service Data Adaptation Protocol (SDAP), and other signaling.

In one implementation, this step may include: one or more of one { K }, a plurality of { K }, a set of feedback resources, and a set of feedback resources are configured through higher layer signaling.

In an implementation, the set of feedback resources may include at least one feedback resource, for example, include at least one PUCCH or PUSCH, and may also include at least one feedback resource set, for example, the set of feedback resources includes at least one PUCCH set or PUSCH set, the PUCCH set includes at least one PUCCH, and the PUSCH set includes at least one PUSCH.

In other words, the set of feedback resources may be PUCCH resource sets or PUCCH resource sets, for example, one PUCCH-Config may contain multiple resource sets, and in this case, the PUCCH-Config may be referred to as a set of feedback resources.

In one implementation, the feedback resource information transmitted through DCI may include: one or more time intervals and/or one or more feedback resources, wherein the time intervals are time intervals between a reference time point and a corresponding target feedback resource. In other words, one or more time intervals, and/or one or more feedback resources, are indicated by the DCI, wherein the time intervals are time intervals between a reference time point and a corresponding target feedback resource. This step may include: one or more of one K, a plurality of ks, one feedback resource, and a plurality of feedback resources are indicated by the DCI.

Wherein, n K or K { indicated by a higher layer signaling configuration or DCI, and m feedback resources or a set of feedback resources, where n and m may be the same or different.

In one implementation, indicating one or more time intervals through the DCI may include:

in a first implementation, one { K } or more { K } is configured by higher layer signaling, and K or more K is indicated from the higher layer signaling configuration { K } by a DCI indication.

In a second implementation manner, one { K } or a plurality of { K } is configured through the high-level signaling, one K or a plurality of ks are indicated through the DCI, and the K indicated through the DCI may be from the { K } configured by the high-level signaling or may not be from the { K } configured by the high-level signaling.

In a third implementation, higher layer signaling is not configured with K, and K or K is indicated by DCI.

In an implementation, indicating one or more feedback resources through the DCI may also include an implementation similar to the three implementations described above, which is not described herein again.

Furthermore, the embodiments of the present invention may be performed by a communication device, the communication device including: the terminal device and/or the network device, for example, in the case that the communication device is a network device, the step of transmitting the feedback resource information may include: the network equipment sends the feedback resource information through a high-level signaling; in the case that the communication device is a terminal device, the step of transmitting the feedback resource information may include: and the terminal equipment receives the feedback resource information through a high-level signaling. For another example, in the case that the communication device is a network device, the step of transmitting the feedback resource information may include: the network equipment sends the feedback resource information through DCI; in the case that the communication device is a terminal device, the step of transmitting the feedback resource information may include: and the terminal equipment receives the feedback resource information through the DCI.

And, after transmitting the feedback resource information, may further include: transmitting the feedback information according to the feedback resource information, specifically comprising: and determining target feedback resources according to the feedback resource information, and transmitting the feedback information by using the target feedback resources.

As shown in fig. 3, one embodiment of the present invention provides a method 300 of determining feedback resources, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s302: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to a joint DCI, the joint DCI schedules a plurality of carriers or cells, and the subcarrier intervals of the plurality of carriers or cells are the same.

This step may include the same or similar descriptions as step S102 in the embodiment of fig. 1 or step S202 in the embodiment of fig. 2, and the repeated parts are not described again here.

In order to avoid the situation that the subcarrier spacing of at least two carriers or cells scheduled by the joint DCI is different, which results in that the feedback resource cannot be correctly indicated, the SCS of the multiple carriers or cells scheduled is not expected to be (not expected) different by the user, or the SCS of the multiple carriers or cells scheduled by the user is expected or assumed to be (expected/assumed) the same.

Then, in this step, it may be guaranteed by the network device that SCS of the multiple carriers or cells scheduled by the joint DCI is the same, in other words, it is guaranteed by the network device that SCS of the multiple carriers or cells scheduled by the joint DCI is not allowed to be different.

In one implementation, the network device ensures that the SCS and cyclic prefix CP of the multiple carriers or cells are the same.

In one implementation, the network device ensures that the time domain positions of the PDSCHs scheduled by the joint DCI on multiple carriers or cells are the same. In one implementation, the time domain position may be at least one of a subframe (subframe), a slot (slot), a starting position, an ending position, and an occupied duration in which the PDSCH is located. The SCS may be at least one of an Uplink (UL) SCS and a Downlink (DL) SCS.

Example 1: all scheduled cells SCS are the same and all scheduled PDSCH slots are the same. The Joint DCI schedules N CCs or cells, wherein N is a positive integer greater than or equal to 2, PDSCH SCS of the N CCs or cells are the same, the slots of the scheduled PDSCH on different CCs or cells are the same and are all located in slot N, and if the Joint DCI indicates one K, the scheduled PDSCH corresponding to the same feedback resource is located in slot N + K.

Example 2: all scheduled cells SCS are the same, K starting point is the join DCI starting point. And scheduling N CCs or cells by the Joint DCI, wherein N is a positive integer greater than or equal to 2, PDSCHs (physical Downlinks) SCS (secondary PDSCH) of the N CCs or cells are the same, and if the Joint DCI located in slot N indicates one K, the scheduled PDSCHs corresponding to the same feedback resource are located in slot N + K.

In addition, according to the method for determining feedback resources provided by the embodiment of the present invention, the intervals of the subcarriers of the multiple carriers or cells are the same, so that it is avoided that the corresponding feedback resources cannot be correctly indicated due to the different intervals of the subcarriers of the multiple carriers or cells.

As shown in fig. 4, one embodiment of the invention provides a method 400 of determining feedback resources, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s402: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

In one implementation, the SCS of at least one of the plurality of carriers or cells may be different from other carriers or cells, where the other carriers or cells are carriers or cells of the plurality of carriers or cells other than the at least one carrier or cell.

Specifically, in this step, the network device does not need to ensure that the SCS of the multiple carriers or cells scheduled by the joint DCI is the same, in other words, the SCS of the multiple carriers or cells scheduled by the joint DCI may be allowed to be different, but does not represent that the SCS of the multiple carriers or cells scheduled by the joint DCI must be different, it is understood that the SCS of the multiple carriers or cells scheduled by the joint DCI may be the same or different.

In one implementation, one feedback resource information may be transmitted, where the one feedback resource information is used to indicate a target feedback resource corresponding to the joint DCI. Wherein, one feedback resource information may include: one { K } configured by higher layer signaling, one set of feedback resources configured by higher layer signaling, one K indicated by DCI, one or more of the feedback resources indicated by DCI.

In one implementation, in a first case, a set of time intervals and/or a set of feedback resources are transmitted by higher layer signaling, the first case includes: in a case where feedback is performed using a dynamic codebook (type2), or where count information in the join DCI is shared by the plurality of carriers or cells, or where count information in the join DCI is shared by the plurality of carrier groups or cell groups.

Wherein, the case that the counting information in the join DCI is shared by the multiple carriers or cells includes: the join DCI schedules a plurality of CCs or cells, and the plurality of CCs or cells correspond to the same counting information, such as a Downlink Assignment Index (DAI), for counting the plurality of CCs or cells.

Further, optionally, since the feedback resource information is configured according to Bandwidth Part (BWP), even though multiple scheduled CCs or cells share the same configuration, there may be multiple BWPs, and thus there may actually be multiple sets of configurations.

At this time, the plurality of scheduled CCs or cells share the configuration, and one feedback resource information is configured for each bwp id or for each bwp. For example, the joint DCI schedules 2 cells, each of which is configured with 4 BWP #0/1/2/3, for BWP #0, two scheduled cells are configured with 1K and/or PUCCH resource set, for BWP #1, two scheduled cells are configured with 1K and/or PUCCH resource set, and so on.

In one implementation, after configuring one { K } and/or one set of feedback resources through higher layer signaling, the method further comprises: indicating, by the DCI, a plurality of Ks and/or a plurality of feedback resources from the set of one { K } and/or one feedback resource.

In another implementation, in a first case, a time interval, and/or a feedback resource, is transmitted over the DCI. The first case includes: using a dynamic codebook (type2) for feedback, or when the count information in the joint DCI is shared by the plurality of CCs or cells, or when the count information in the joint DCI is shared by the plurality of carrier groups or cell groups.

Optionally, this implementation may be implemented in combination with three implementations of DCI indicating a time interval described in the embodiment of fig. 3.

Specifically, the first implementation indicates one K and/or one feedback resource from a set of one K and/or one feedback resource configured by higher layer signaling through the DCI indication.

In a second implementation manner, a set of { K } and/or a feedback resource is configured through higher layer signaling, a K and/or a feedback resource is indicated through DCI, and the K and/or the feedback resource indicated through DCI may or may not come from the set of { K } and/or the feedback resource configured by higher layer signaling.

In a third implementation, the higher layer signaling does not configure a set of { K } and/or feedback resources, and in this step, one K and/or one feedback resource is indicated by DCI.

In this embodiment, K may be interpreted according to a Physical Downlink Control Channel (PDCCH) SCS or a PUCCH SCS or a pre-set SCS, and may be interpreted according to a SCS of a corresponding CC or cell or CC group or cell group.

Therefore, under the condition that a dynamic codebook is used for feedback, or count information in the joint DCI is shared by the multiple carriers or cells, or count information in the joint DCI is shared by the multiple carrier groups or cell groups, a set of one time interval and/or a set of one feedback resource are configured through high-layer signaling, so that HARQ-ACKs of different multiple scheduled CCs or cells, CC or cell groups or cells can be fed back at the same time domain position, that is, the HARQ-ACKs can be fed back at the same slot or even the same feedback resource.

Wherein, the carrier or cell grouping may include: a preset carrier or cell group, for example, a preset carrier or cell group agreed by network equipment configuration or protocol; the carriers or cells with the same subcarrier interval in the plurality of carriers or cells are used as a group; the carriers or cells with the same subcarrier intervals and cyclic prefixes in the plurality of carriers or cells are used as a group; associating carriers or cells of the same feedback cell as a group; the carriers or cells of the same feedback cell group are associated as one group.

As shown in fig. 5, one embodiment of the present invention provides a method 500 of determining feedback resources, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s502: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

Specifically, in this step, the network device does not guarantee that the SCS of the multiple carriers or cells scheduled by the joint DCI is the same, in other words, the SCS of the multiple carriers or cells scheduled by the joint DCI may be allowed to be different, but does not represent that the SCS of the multiple carriers or cells scheduled by the joint DCI must be different, it is understood that the SCS of the multiple carriers or cells scheduled by the joint DCI may be the same or different.

In one implementation, multiple pieces of feedback resource information may be transmitted, where the multiple pieces of feedback resource information are used to indicate target feedback resources corresponding to the joint DCI.

In one implementation, in the second case, the set of one or more time intervals, and/or the set of one or more feedback resources, are transmitted by higher layer signaling. The second case includes: a semi-static codebook (type1) is used for feedback, or count information of at least two different carriers or cells is contained in the joint DCI.

In an implementation manner, the case that the join DCI includes count information of at least two different carriers or cells includes: the join DCI schedules multiple CCs or cells corresponding to different counting information in the DCI.

For example, one join DCI schedules two cells, where the DCI carries two cDAI, and the two cDAI respectively correspond to the count information of two different CCs or cells. Further, when the base station transmits a joint DCI and the joint DCI schedules the two cells, the two cDAI are +1 respectively. The same carriers or cell groups may correspond to the same or same group count information based on the carrier or cell groups as described in the embodiment of fig. 4.

In another implementation, the case that the join DCI includes count information of at least two different carriers or cells includes: the join DCI schedules a plurality of CCs or cells, the plurality of CCs or cells may be divided into at least two carrier or cell groups, and the join DCI includes the count information of the at least two carrier or cell groups.

In one implementation, after configuring the plurality of { K } and/or the set of the plurality of feedback resources through higher layer signaling, the method further comprises: one time interval and/or one feedback resource is indicated from a set of multiple time intervals and/or a set of multiple feedback resources configured by higher layer signaling through the DCI.

In another implementation, in case of using a semi-static codebook (type1) for feedback, or in case of including count information of at least two different carriers or cells in the joint DCI, a plurality of K and/or a plurality of feedback resources are indicated by the DCI. Optionally, this implementation may be implemented in combination with three implementations of DCI indicating a time interval described in the embodiment of fig. 3.

Specifically, the first implementation indicates, through the DCI, a plurality of K and/or a plurality of feedback resources from among a plurality of { K } and/or a set of a plurality of feedback resources configured by higher layer signaling.

In a second implementation manner, the higher layer signaling configures multiple { K } and/or multiple sets of feedback resources, and the multiple K and/or multiple feedback resources indicated by the DCI may or may not come from the { K } and/or the sets of feedback resources configured by the higher layer signaling.

In a third implementation, the higher layer signaling does not configure the set of { K } and/or feedback resources, and in this step, multiple K and/or multiple feedback resources are indicated by DCI.

Thus, by configuring a plurality of sets of time intervals and/or a plurality of sets of feedback resources through higher layer signaling and/or by indicating a plurality of time intervals and/or a plurality of feedback resources through the DCI in the case of using a semi-static codebook for feedback or in the case of including count information of at least two different carriers or cells in the joint DCI, feedback information may be determined for different scheduled CCs or cells, CCs or groups of cells, respectively.

The user does not expect (not expect) the scheduled CC or cell to correspond to different feedback resources, or the user expects or assumes the scheduled CC or cell to correspond to the same feedback resource.

In one implementation, each of the multiple carriers or cells corresponds to the same target feedback resource information. The target feedback resource information may be configured by a higher layer signaling or indicated by DCI. For example, the join DCI schedules N CCs or cells, and configures a set of corresponding K set and PUCCH resource set configurations for each scheduled CC or cell.

Further optionally, the K set or PUCCH resource set configurations corresponding to each CC or cell in the same CC group or cell group may be different, and one reference K set or reference PUCCH resource set may be defined.

For example, one set of reference K and/or reference PUCCH resources may be configured for scheduled CCs or cells with the same SCS. For example, one set of reference K and/or reference PUCCH resources may be configured for scheduled CCs or cells with the same SCS and CP. For another example, the joint DCI schedules N CCs or cells, configures a set of corresponding K and PUCCH resource set configurations for each scheduled CC or cell, and the DCI indicates corresponding K and PUCCH resource for each CC group or cell group, respectively.

Example 3: k and/or PUCCH resource sets are configured for different scheduled CCs or cells, respectively. And scheduling N CCs or cells by the Joint DCI, wherein N is a positive integer greater than or equal to 2, the join DCI carries N Ks, and for each scheduled CC or cell, the time domain position corresponding to the K corresponding to the CC or cell is the time domain position of the feedback resource.

Further optionally, K, i in the join DCI corresponds to the scheduled CC or the cell i, and the PDSCH on the join DCI scheduled CC or the cell i is located in slot ni, so that the HARQ-ACK corresponding to the PDSCH is fed back at the time domain position corresponding to ni + K, i. Optionally, the join DCI carries N PUCCH resource ids, where PUCCH id, i in the join DCI corresponds to a scheduled CC or a cell i, and then HARQ-ACK corresponding to PDSCH on the join DCI schedules the resource feedback corresponding to the PUCCH id, i.

In another implementation manner, each preset carrier or cell group corresponds to the same target feedback resource information. Each predetermined carrier or cell group of the plurality of carriers or cells may be preconfigured by the network device or agreed upon by a protocol.

In another implementation manner, carriers or cells with the same subcarrier spacing in the multiple carriers or cells correspond to the same target feedback resource information. The target feedback resource information may be configured by a higher layer signaling or indicated by DCI.

For example, the join DCI schedules M CCs or cells, where M is a positive integer greater than or equal to 2, the scheduled CCs or cells are divided into N groups according to the SCS, where N is a positive integer greater than or equal to 2, and each group is configured with a set of corresponding K set and PUCCH resource set (resource set) configurations.

For another example, the join DCI schedules M CCs or cells, where M is a positive integer greater than 2, the scheduled CCs or cells are divided into N groups according to the SCS, where N is a positive integer greater than or equal to 2, each group is configured with a set of corresponding K sets and PUCCH resource set (resource set) configurations, and the DCI indicates the corresponding K and PUCCH resource for each group respectively.

Example 4: k, and/or PUCCH resource sets are configured for different scheduled CC groups or cell groups, respectively. The Joint DCI schedules M CCs or cells, wherein M is a positive integer larger than 2, the CCs or cells are assumed to be divided into N CC groups or cell groups according to SCS, N is a positive integer larger than or equal to 2, the SCS in the same group is the same, and the SCS in different groups is different.

Optionally, the join DCI carries N K, and for each scheduled CC group or cell group, a time domain position corresponding to K corresponding to the CC group or cell group is a time domain position of the feedback resource. Further optionally, K, i in the join DCI corresponds to a scheduled CC group or cell group i, and the PDSCH on the scheduled CC group or cell group i is located in slot ni, so that HARQ-ACK corresponding to the PDSCH scheduled by the join DCI on all CCs or cells in the CC group or cell group is fed back at the time domain position corresponding to ni + K, i.

Optionally, the join DCI carries N PUCCH resource ids, where the PUCCH id, i in the join DCI corresponds to a scheduled CC group or cell group i, and the HARQ-ACK corresponding to the PDSCH scheduled by the join DCI on all CCs or cells in the CC group or cell group is fed back on the resource corresponding to the PUCCH id, i.

In another implementation manner, carriers or cells in the plurality of carriers or cells with the same subcarrier spacing and Cyclic Prefix (CP) correspond to the same target feedback resource information. The target feedback resource information may be configured by a higher layer signaling or indicated by DCI.

For example, the join DCI schedules M CCs or cells, where M is a positive integer greater than or equal to 2, the scheduled CCs or cells are divided into N groups according to the SCS and CP, where N is a positive integer greater than 2, and each group is configured with a set of corresponding K set and PUCCH resource set configurations.

For another example, the joint DCI schedules M CCs or cells, where M is a positive integer greater than 2, the scheduled CCs or cells are divided into N groups according to the SCS and CP, where N is a positive integer greater than or equal to 2, each group is configured with a set of corresponding K set and PUCCH resource set configurations, and the DCI indicates corresponding K and PUCCH resource for each group respectively. This implementation may also be described in example 4, for example.

In another implementation manner, carriers or cells associated with the same feedback cell correspond to the same target feedback resource information. The target feedback resource information may be configured by a higher layer signaling or indicated by DCI.

For example, the scheduled carriers or cells are grouped according to the cell or PUCCH cell where the associated PUCCH is located, and the same { K } and/or PUCCH resource set is configured for the scheduled CC or cell associated with the same PUCCH cell. The same target feedback resource information may be the same target feedback resource information, or a plurality of same target feedback resource information.

In another implementation manner, carriers or cells associated with the same feedback cell group correspond to the same target feedback resource information. The target feedback resource information may be configured by a higher layer signaling or indicated by DCI. For example, the scheduled carriers or cells are grouped according to the corresponding PUCCH cell groups, and the same { K } and/or PUCCH resource sets are configured for the scheduled CCs or cells associated with the same PUCCH cell group.

In this embodiment, K may be interpreted according to PDCCH SCS or PUCCH SCS or pre-configured SCS or UL SCS, and may be interpreted according to SCS of the corresponding CC or cell or CC group or cell group.

In addition, the method for determining feedback resources provided in the embodiment of the present invention enables scheduled CCs or cells with the same SCS to be regarded as a whole, and the base station notifies the corresponding feedback resources through the same configuration or the same indication, and the configured or indicated multiple resources may be different or the same; for scheduled CCs or cells of different SCS, the base station indicates and/or configures its corresponding feedback resource, respectively, to avoid misinterpretation.

As shown in fig. 6, one embodiment of the present invention provides a method 600 of determining feedback resources, which may be performed by a communication device, the communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s602: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, the joint DCI schedules a plurality of carriers or cells, and the join DCI and/or single DCI associated with the join DCI carry indication information of the feedback resource information.

This step may include the same or similar descriptions as step S202 in the embodiment of fig. 2, and the repeated parts are not described herein again.

In one implementation, the reference time point may be a starting point or an ending point of a time unit in which the join DCI is located. The time unit may be a slot or a time resource occupied by the DCI, and in this case, the starting point or the ending point of the time unit is the starting point or the ending point of the DCI.

In another implementation, the reference time point may be a start point, an end point, or a time unit of a target PDSCH in the plurality of PDSCHs scheduled by the joint DCI.

In another implementation, the reference time point may be a starting point, an end point, or a time unit of the PDSCH on the carrier or the cell corresponding to the time interval.

In another implementation, the reference time point may be a starting point or an ending point of a time unit in which a single DCI associated with the join DCI is located.

In another implementation, the reference time point may be a starting point, an ending point, or a time unit of a PDSCH scheduled by a single DCI associated with the joint DCI.

In another implementation, the reference time point may be a starting point, an ending point, or a time unit of the PDSCH on the first carrier or the first cell. In an implementation manner, the first carrier or the first cell and the multiple carriers or the multiple cells are configured for the same user equipment, and may be a carrier or a cell with a smaller carrier or cell identifier in the multiple carriers or the multiple cells scheduled by the joint DCI, or a carrier or a cell with a larger carrier or cell identifier in the multiple carriers or the multiple cells scheduled by the joint DCI.

In another implementation, the first carrier or the first cell may be a carrier or a cell configured with a common search space (common search space), a carrier or a primary cell where the primary cell is located, a carrier or a cell configured with a physical broadcast Channel Signal Block (SSB) or a Channel State Information reference Signal (CSI-RS), a cell configured with a cross-carrier, or a carrier or a cell configured with a PUCCH resource, and the like.

For example, the DCI schedules cell 1 and cell 2 at the same time, where cell 2 is a first cell, a slot where the PDSCH of cell 2 is located is a reference point, e.g., a Pcell and a Scell are scheduled, the Pcell is the first cell, and the slot where the PDSCH of the Pcell is located is the reference point.

Wherein the join DCI and/or single DCI (single DCI) associated with the join DCI carry indication information of the feedback resource information.

In one implementation manner, the indication information of the feedback resource information includes: indication information of K and/or the feedback resource identification information.

The indication information of K is used to indicate one or more of K, and the indication information of K may include an indication value of K, or an index of K.

The feedback resource identification information is used to indicate one or more of the feedback resources, e.g., the feedback resource identification information is used to indicate one or more PUCCH resources.

Optionally, the indication information of K indicates a joint index of N K, and/or the feedback resource identification information is a joint index of the N PUCCH, and the plurality of { K } are jointly coded, and/or the plurality of PUCCH resource sets are jointly coded, so that N K are indicated by one indication information of K, and/or N PUCCHs are indicated by one feedback resource identification information.

For example, the join DCI indicates N K and N PUCCH resources, the join DCI indicates N K and/or 1 PUCCH resources, or the method is similar when the join DCI indicates N PUCCH resources and/or 1K, which is not repeated. For example, the join DCI carries indication information of 1K and one feedback resource identification information to indicate N K and PUCCH resources.

Optionally, the DCI carries N pieces of K indication information and N pieces of feedback resource identification information, where the K indication information and the feedback resource identification information correspond to respective K and PUCCH resource sets respectively. Each K and feedback resource identification information at this time may in this case be interpreted in accordance with the SCS of the corresponding CC or cell or CC group or cell group.

The above N K and PUCCH resources respectively correspond to respective K and PUCCH resource sets, that is, the case where different CCs or cells or CC groups or cell groups described in the embodiment of fig. 5 correspond to different configurations, or the case where the same K and PUCCH resource sets, that is, different CCs or cells or CC groups or cell groups described in the embodiment of fig. 4 correspond to the same configurations may also correspond to the same K and PUCCH resource sets.

For example, the join DCI schedules two CCs or cells, where 4K elements are included in the { K } (K, 1 ═ 1,2,3, 4) of CC or cell 1, and 8K elements are included in the { K } (K, 2 ═ 1,2,3,4,5,6,7, 8) of CC or cell 2, the indication information of K in the join DCI is max (log2(4), log2(8)) -3 bit, and the indication information of K indicates index of K in { K }, where X ═ 2 is the K value corresponding to the minimum 2bit of the indication information of K, and X ═ 3 is the K value corresponding to the indication information of K in CC or cell 1, X ═ 2 is K; assuming that the indication information of K is 110, the corresponding K value is K, K is 2 for the 2 nd K element in 1, and K is 6 for the 6 th K element in 1 for CC or cell 1.

For example, the join DCI schedules two CCs or cells, where 4K elements are included in the { K } (K, 1 ═ 1,2,3, 4) of CC or cell 1, and 8K elements are included in the { K } (K, 2 ═ 1,2,3,4,5,6,7, 8) of CC or cell 2, the indication information of K in the join DCI is max (4,8) ═ 8bit and the indication information of K indicates the position of K in { K }, where K is the lowest K value corresponding to 4 bits of the indication information of K for CC or cell 1, and X ═ 4, and K is the lowest K value corresponding to K of CC or cell 2; assuming that the indication information of K is 00000010, the corresponding K value is K, K is 2 for the 2 nd K element in 1, and K is K for CC or cell 2, and K is 2 for the 2 nd K element in 1.

For example, one { K } ═ 1,2,3,4} is configured for multiple scheduled CCs or cells, but the join DCI carries indication information of N K, which are respectively used for indicating feedback of different CCs or cells, optionally, the indication information of each K is an index of K in the set, see example 3.

In another implementation manner, the indication information of the feedback resource information includes: joint indication information for indicating a plurality of Ks and the feedback resource, wherein even if a plurality of PUCCHs are indicated, the PUCCHs may be the same, e.g., feedback information of a plurality of CCs or cells or CC groups or cell groups multiplexed on one PUCCH, or may be different, e.g., feedback information of a CC or cell or CC group or cell group, respectively.

Optionally, the K and feedback resource identification information are jointly indicated as a joint index of N K and N PUCCHs. The above-mentioned multiple { K } and PUCCH resource sets may be jointly encoded, and N K and N PUCCHs are jointly indicated by one K + PUCCH. For example, the join DCI carries 1 joint indication to indicate N K and PUCCH resources.

For example: 0 corresponds to K _ value1 PUCCH resource 1; 1 corresponds to K _ value2 PUCCH resource 2; 2 for K _ value3 PUCCH resource 3; the DCI carries one of 0, 1, or 2 to indicate one of 3 combinations of K and feedback resource identification information.

In one implementation, a target bit or a target value in the indication information of the feedback resource information is used to determine the feedback resource information, for example, the highest or lowest X bit of the indication information of K is used to determine K, and/or the highest or lowest Y value of the feedback resource identification information is used to indicate PUCCH. X, Y relate to the corresponding domain size in its configuration for different CCs or cells, or X, Y relate to the corresponding set size in its configuration for different CC groups or cell groups. For example, a maximum, minimum, or other target value for the corresponding set size.

Optionally, the indication information of K in the join DCI relates to a configuration of CCs or cells scheduled by the join DCI, or a maximum value of { K } size in a configuration of a CC group or a cell group. In one implementation, the size of the indication information of K is equal to the number of bits corresponding to the number K of bits included in the { K } with the largest number K in the configuration corresponding to the cell scheduled by the Joint DCI. For example, Joint DCI schedules 2 cells, and 1 { K } is configured for each of the two cells, where { K } of scheduled cell 1 includes 4K resources, and { K } of scheduled cell 2 includes 8 PUCCH resources. If the indication information of K indicates K by using a bitmap (bitmap), the indication information of K in the DCI is 8 bits. In this case, X is 4 for scheduled cell 1 and 8 for scheduled cell 2. If the indication information of K indicates K index, the indication information of K in DCI is 3 bit. In this case, X is 2 for the scheduled cell 1, and X is 3 for the scheduled cell 2, and optionally, the size of the feedback resource identification information in the join DCI is related to the maximum value of the PUCCH aggregation size in the CC or cell configuration scheduled by the Joint DCI or the configuration of the CC group or cell group.

In one implementation, the size of the feedback resource identification information is equal to the number of bits corresponding to the number of PUCCHs included in the PUCCH set including the largest number of PUCCHs in the configuration corresponding to the cell scheduled by the Joint DCI.

For example, Joint DCI schedules 2 cells, 4 PUCCH sets are configured for each of the two cells, a PUCCH set including the largest number of PUCCHs in the PUCCH set of scheduled cell 1 includes 4 PUCCH resources, and a PUCCH set including the largest number of PUCCHs in the PUCCH set of scheduled cell 2 includes 8 PUCCH resources. If the feedback resource identification information indicates the PUCCH index, it indicates that 8 indexes require 3 bits, and the feedback resource identification information in the DCI is 3 bits. In this case, Y is 2 for scheduled cell 1 and 3 for scheduled cell 2.

In addition, the method for determining feedback resources provided in the embodiments of the present invention can correctly indicate the feedback resources when a join DCI schedules multiple carriers or cells through a flexible signaling design.

As shown in fig. 7, one embodiment of the present invention provides a method 700 of determining feedback resources, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s702: and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

This step may include the same or similar descriptions as at least one of step S102 in the embodiment of fig. 1, step S202 in the embodiment of fig. 2, step S302 in the embodiment of fig. 3, step S402 in the embodiment of fig. 4, step S502 in the embodiment of fig. 5, and step S602 in the embodiment of fig. 6, and repeated descriptions thereof are omitted here.

S704: and determining at least one feedback time period according to the target feedback resource.

And according to the starting time point of the feedback time period being n, the ending time point being n + K, and the time point being n + K being the time unit of the target feedback resource.

In a first implementation manner, the starting time point n of the feedback time period may be a starting point or an end point of a time unit where the DCI is located, for example, a starting point or an end point of a slot, that is, a slot where a join DCI overlapping with a PUCCH slot is located.

Fig. 8a-8c show schematic diagrams of determining at least one feedback time period. As shown in fig. 8a, the common reference point is the slot where the DCI is located, and K uses PUCCH SCS. Joint DCI schedules 2 CCs or cells, divided into 30kHz and 15kHz, PUCCH on CC or cell 1 and PUCCH SCS 30 kHz. The joint DCI on Slot n indicates K4, then HARQ-ACKs corresponding to two scheduled PDSCH on two CCs or cells are fed back on n + 4.

In a second implementation manner, the starting time point n of the feedback time period may be: the starting point or the ending point of a certain PDSCH (or PDSCH group) in the scheduled multiple PDSCHs or the slot where the certain PDSCH (or PDSCH group) is located, i.e. the PUCCH slot where the certain PDSCH (or PDSCH group) overlaps.

For example, the first PDSCH (or PDSCH group), or the last PDSCH (or PDSCH group), or the PDSCH (or PDSCH group) corresponding to a certain identifier, or the PDSCH (or PDSCH group) with the smallest SCS, or the PDSCH (or PDSCH group) with the largest SCS, or the PDSCH (or PDSCH group) with a predetermined SCS, for example, the earliest start, or the latest start, or the earliest end, or the latest PDSCH (or group) is ended, for example, the PDSCH (or PDSCH group) with the same SCS as the PUCCH SCS.

As shown in fig. 8b, the common reference point is the slot where the earliest PDSCH is located, and K uses PUCCH SCS. Joint DCI schedules 2 CCs or cells, divided into 30kHz and 15kHz, PUCCH on CC or cell 1 and PUCCH SCS 30 kHz. The joint DCI indicates that K is 3, and the earliest one of two CCs or two PDSCHs scheduled on a cell is located on Slot n, then HARQ-ACKs corresponding to the two PDSCHs are fed back on n + 3.

The above first and second implementations define a common feedback period, and the determination method of the above feedback period may be used regardless of one or more configured or indicated numbers of K and/or PUCCH resources. The reference points for both implementations K above are the same, and the join DCI may indicate only one K and/or PUCCH resource when combined with the embodiment of fig. 1.

In a third implementation manner, the starting time point n of the feedback time period may be: for each K indicated in the joint DCI, the starting point n is the starting point or the ending point of the PDSCH on the scheduled CC or cell (group) corresponding to the K or the slot where the PDSCH is located, that is, for each { K }, K ═ 0 corresponds to the PUCCH slot overlapping with the PDSCH (group) on the scheduled CC or cell (group) corresponding to the { K }.

As shown in fig. 8c, the independent reference points are slots where the respective PDSCH is located, and K uses PUCCH SCS. Joint DCI schedules 2 CCs or cells, divided into 30kHz and 15kHz, PUCCH on CC or cell 1 and PUCCH SCS 30 kHz. The joint DCI indicates K ═ 3 and K ═ 2 for two CCs or cells, two PDSCHs scheduled on the two CCs or cells are located at slot n and slot n ', respectively, and then HARQ-ACKs corresponding to the two PDSCHs are fed back on slot n +3 and slot n ' +2, respectively, fig. 8c is a case where slot n +3 and slot n ' +2 correspond to the same slot

Thus, the third implementation manner defines feedback time periods for multiple ks in DCI, and this implementation manner may be used in combination with the implementation manner in fig. 5 that different CCs or cells or CC groups or cell groups correspond to different ks.

In addition, the above implementations of fig. 1 to 7 may be applied to NR and subsequent evolution systems, and may be used for scheduling of Primary serving cells (Primary cells, pcells) and/or Secondary cells (Secondary cells, scells) of a Primary serving Cell/Primary Cell group.

In addition, according to the method for determining the feedback resource provided by the embodiment of the invention, the feedback time period can be determined through the target feedback resource.

A communication device, which may be a network device and/or a user device, according to an embodiment of the present invention will be described in detail below with reference to fig. 9.

Fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in fig. 9, the communication device 900 includes: a processing module 910.

The processing module 910 is configured to transmit feedback resource information, where the feedback resource information is used to indicate a target feedback resource corresponding to a joint DCI, and the joint DCI schedules multiple carriers or cells.

The communication device 900 provided in the embodiment of the present invention transmits feedback resource information, where the feedback resource information is used to indicate a target feedback resource corresponding to joint DCI, and the joint DCI schedules multiple carriers or cells, so that the corresponding feedback resource can be correctly indicated when the joint DCI schedules multiple carriers or cells, and it is ensured that the network device and the UE understand the feedback resource consistently.

In one implementation, the processing module 910 is configured to: transmitting the feedback resource information through high-level signaling; and/or transmitting the feedback resource information through a DCI, wherein the DCI comprises: the joint DCI and/or a single DCI associated with the joint DCI.

In one implementation, the feedback resource information transmitted through higher layer signaling includes: a set of one or more time intervals, and/or a set of one or more feedback resources; and/or the feedback resource information transmitted through the DCI, including: one or more time intervals and/or one or more feedback resources, wherein the time intervals are time intervals between a reference time point and a corresponding target feedback resource. .

In one implementation, the subcarrier spacing of the multiple carriers or cells is the same; or, the subcarrier intervals of the multiple carriers or cells are the same and the cyclic prefix CP is the same.

In one implementation, the PDSCH scheduled on multiple carriers or cells by the joint DCI is located in the same time domain position.

In one implementation, there are carriers or cells with different subcarrier spacing in the plurality of carriers or cells.

In one implementation, the processing module 910 is configured to: transmitting a feedback resource information.

In one implementation, the processing module 910 is configured to transmit a set of time intervals and/or a set of feedback resources through higher layer signaling in the first case;

wherein the first condition comprises:

feedback using a dynamic codebook, or count information in the joint DCI is shared by the multiple carriers or cells, or

Count information in the joint DCI is shared by the plurality of carrier groups or cell groups.

In one implementation, the processing module 910 is configured to indicate, through the DCI, a plurality of time intervals and/or a plurality of feedback resources from a set of one time intervals and/or a set of one feedback resource after configuring the set of one time intervals and/or the set of one feedback resource through higher layer signaling.

In one implementation, the processing module 910 is configured to transmit a time interval and/or a feedback resource through the DCI in the first case;

wherein the first condition comprises:

using a dynamic codebook for feedback, or

The counting information in the joint DCI is shared by the multiple carriers or cells, or

In one implementation, the processing module 910 is configured to transmit a plurality of feedback resource information.

In one implementation, the processing module 910 is configured to transmit a set of multiple time intervals and/or a set of multiple feedback resources through higher layer signaling in the second case;

wherein the second condition comprises:

using a semi-static codebook for feedback, or

The joint DCI includes count information of at least two different carriers or cells.

In one implementation, the processing module 910 is configured to indicate one time interval and/or one feedback resource from a set of multiple time intervals and/or a set of multiple feedback resources through DCI after configuring the set of multiple time intervals and/or the set of multiple feedback resources through higher layer signaling.

In one implementation, the processing module 910 is configured to transmit a plurality of time intervals and/or a plurality of feedback resources through the DCI in the second case;

wherein the second condition comprises:

using a semi-static codebook for feedback, or

In one implementation, each of the multiple carriers or cells corresponds to the same target feedback resource information.

In one implementation, each preset carrier or cell group corresponds to the same target feedback resource information.

In one implementation, the carriers or cells with the same subcarrier spacing in the multiple carriers or cells correspond to the same target feedback resource information.

In one implementation, the carriers or cells with the same subcarrier spacing and cyclic prefix in the multiple carriers or cells correspond to the same target feedback resource information.

In one implementation, carriers or cells associated with the same feedback cell correspond to the same target feedback resource information.

In one implementation, carriers or cells associated with the same feedback cell group correspond to the same target feedback resource information.

In one implementation, the reference time point is a start point or an end point of a time unit where the joint DCI is located, or a start point or an end point of a time unit where a single DCI associated with the joint DCI is located; or a starting point, an end point or a time unit of a PDSCH scheduled by the single DCI associated with the joint DCI; or a starting point, an end point or a time unit of a target PDSCH in the plurality of PDSCHs scheduled by the joint DCI; or a starting point, an end point or a time unit of the PDSCH on the first carrier or the first cell, wherein the first carrier or the first cell and the multiple carriers or cells are configured for the same user equipment; or the starting point, the end point or the time unit of the PDSCH on the carrier or the cell corresponding to the time interval.

In an implementation, the processing module 910 is configured to determine at least one feedback time period according to a target feedback resource corresponding to a joint DCI for scheduling multiple carriers or cells, after the target feedback resource is determined.

In an implementation manner, the DCI carries indication information of the feedback resource information to indicate the feedback resource information, where the indication information of the feedback resource information includes:

indication information of the time interval and/or the feedback resource identification information, the indication information of the time interval is used for indicating one or more time intervals, and the feedback resource identification information is used for indicating one or more feedback resources; or

Joint indication information indicating a plurality of the time intervals and the feedback resources.

The communication device 900 according to the embodiment of the present invention may refer to any one or more of the processes corresponding to the method 100-700 in the embodiment of the present invention, and each unit/module and the other operations and/or functions in the communication device 900 are respectively for implementing the corresponding processes in the method 100-700 and can achieve the same or equivalent technical effects, and for brevity, no further description is provided herein.

Fig. 10 is a block diagram of a terminal device of another embodiment of the present invention. The communication device according to the embodiment of the invention can be a terminal device. The terminal device 1000 shown in fig. 10 includes: at least one processor 1001, memory 1002, at least one network interface 1004, and a user interface 1003. The various components in terminal device 1000 are coupled together by a bus system 1005. It is understood that bus system 1005 is used to enable communications among the components connected. The bus system 1005 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. But for the sake of clarity the various busses are labeled in figure 10 as the bus system 1005.

The user interface 1003 may include, among other things, a display, a keyboard, a pointing device (e.g., a mouse, trackball), a touch pad, or a touch screen.

It is to be understood that the memory 1002 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1002 of the subject systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 1002 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 10021 and applications 10022.

The operating system 10021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 10022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. The program implementing the method according to the embodiment of the present invention may be included in the application program 10022.

In this embodiment of the present invention, the terminal device 1000 further includes: a computer program stored on the memory 1002 and executable on the processor 1001, the computer program, when executed by the processor 1001, implementing the steps of the method 100-700 as follows.

The method disclosed by the embodiment of the invention can be applied to the processor 1001 or can be implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1001.

The processor 1001 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002 and performs the steps of the method in combination with the hardware. In particular, the computer readable storage medium has a computer program stored thereon, and the computer program realizes the steps of the embodiments of the

method

100 and 700 described above when being executed by the processor 1001.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Terminal device 1000 can implement each process implemented by the terminal device in the foregoing embodiments, and can achieve the same or equivalent technical effects, and for avoiding repetition, details are not described here.

Referring to fig. 11, fig. 11 is a structural diagram of a network device applied in the embodiment of the present invention, and the communication device in the embodiment of the present invention may be a network device, and can implement the details of

method embodiment

100 and 700, and achieve the same effect. As shown in fig. 11, the network device 1100 includes: a processor 1101, a transceiver 1102, a memory 1103, and a bus interface, wherein:

in this embodiment of the present invention, the network device 1100 further includes: a computer program stored on the memory 1103 and executable on the processor 1101, the computer program, when executed by the processor 1101, implementing the steps of the method 100-700.

In fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1101, and various circuits, represented by memory 1103, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1102 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1101 in performing operations.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the

method embodiments

100 and 700, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner.

Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method of determining feedback resources, the method being performed by a communication device, the method comprising:

and transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

2. The method of claim 1, wherein the transmitting feedback resource information comprises:

transmitting the feedback resource information through high-level signaling; and/or

Transmitting the feedback resource information through DCI, wherein the DCI comprises: the joint DCI and/or a single DCI associated with the joint DCI.

3. The method of claim 2, wherein the feedback resource information transmitted through higher layer signaling comprises:

a set of one or more time intervals, and/or a set of one or more feedback resources; and/or

The feedback resource information transmitted through the DCI includes:

one or more time intervals and/or one or more feedback resources, wherein the time intervals are time intervals between a reference time point and a corresponding target feedback resource.

4. The method of claim 1, wherein the subcarrier spacing of the plurality of carriers or cells is the same, or wherein the subcarrier spacing of the plurality of carriers or cells is the same and a Cyclic Prefix (CP) is the same.

5. The method of claim 1, wherein the joint DCI schedules the PDSCH on multiple carriers or cells at the same time domain location.

6. The method of claim 1, wherein there are carriers or cells of the plurality of carriers or cells with different subcarrier spacing.

7. The method of claim 3, wherein the transmitting feedback resource information comprises:

transmitting a feedback resource information.

8. The method of claim 7, wherein said transmitting a feedback resource information comprises:

in the first case, a set of time intervals and/or a set of feedback resources are transmitted by higher layer signaling;

wherein the first condition comprises:

using a dynamic codebook for feedback, or

9. The method of claim 8, wherein after said transmitting one feedback resource information, the method further comprises:

indicating, by the DCI, a plurality of time intervals and/or a plurality of feedback resources from the set of one time interval and/or the set of one feedback resource.

10. The method of claim 7, wherein said transmitting a feedback resource information comprises:

in a first case, transmitting a time interval, and/or a feedback resource, through the DCI;

wherein the first condition comprises:

using a dynamic codebook for feedback, or

11. The method of claim 3, wherein the transmitting feedback resource information comprises:

transmitting a plurality of feedback resource information.

12. The method of claim 11, wherein the transmitting the plurality of feedback resource information comprises:

in a second case, transmitting a set of multiple time intervals, and/or a set of multiple feedback resources, by higher layer signaling;

wherein the second condition comprises:

using a semi-static codebook for feedback, or

13. The method of claim 12, wherein after the transmitting the plurality of feedback resource information, the method further comprises:

indicating, by the DCI, one time interval and/or one feedback resource from the set of multiple time intervals and/or the set of multiple feedback resources.

14. The method of claim 11, wherein the transmitting the plurality of feedback resource information comprises:

in a second case, transmitting a plurality of time intervals, and/or a plurality of feedback resources, through the DCI;

wherein the second condition comprises:

using a semi-static codebook for feedback, or

15. The method according to any of claims 11-14, wherein each of the plurality of carriers or cells corresponds to the same target feedback resource information; or

Each preset carrier or cell group corresponds to the same target feedback resource information;

the carriers or cells with the same subcarrier interval in the plurality of carriers or cells correspond to the same target feedback resource information; or

The carriers or cells with the same subcarrier intervals and cyclic prefixes in the plurality of carriers or cells correspond to the same target feedback resource information; or

Associating carriers of the same feedback cells or corresponding same target feedback resource information of the cells; or

And the carriers or cells associated with the same feedback cell group correspond to the same target feedback resource information.

16. The method of claim 3, wherein the reference time point is a start point or an end point of a time unit in which the joint DCI is located, or

A starting point or an end point of a time unit where a single DCI associated with the joint DCI is located; or

A starting point, an end point or a time unit of a PDSCH scheduled by the single DCI associated with the joint DCI; or

A starting point, an end point or a time unit of a target PDSCH in the plurality of PDSCHs scheduled by the joint DCI; or

A starting point, an end point or a time unit of the PDSCH on a first carrier or a first cell, wherein the first carrier or the first cell and the multiple carriers or cells are configured for the same user equipment; or

The time interval corresponds to a starting point, an end point or a time unit of the PDSCH on the carrier or the cell.

17. The method of claim 1, wherein after the transmitting feedback resource information, the method further comprises:

and determining at least one feedback time period according to the target feedback resource.

18. The method of claim 2, wherein the DCI carries indication information of the feedback resource information to indicate the feedback resource information, wherein the indication information of the feedback resource information comprises:

19. A communication device, comprising:

and the processing module is used for transmitting feedback resource information, wherein the feedback resource information is used for indicating a target feedback resource corresponding to joint DCI, and the joint DCI schedules a plurality of carriers or cells.

20. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method of determining feedback resources according to any of the claims 1 to 18.

21. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method of determining feedback resources according to any of the claims 1 to 18.

22. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method of determining feedback resources according to any one of claims 1 to 18.