Physical downlink shared channel (PDSCH) configuration method and device

Abstract

An embodiment of the present application discloses a method and apparatus for configuring a physical downlink shared channel (PDSCH). The method and apparatus receive first configuration information, where the first configuration information is used to indicate information of at least two search space sets (SS sets) having a link relationship and a control resource set (CORESET) corresponding to each search space set. The method determines configuration information of the physical downlink shared channel (PDSCH) in response to the first configuration information. The downlink control information (DCI) corresponding to the PDSCH is transmitted through at least two physical downlink control channel (PDCCH) candidate time-frequency resources in at least two search space sets having a link relationship. The method clarifies a method for configuring PDSCH transmission when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets having a link relationship are different, thereby improving the configuration flexibility of the CORESET when the PDCCH is repeatedly sent, and the transmission flexibility of the PDSCH.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and apparatus for configuring a physical downlink shared channel (PDSCH). Background Art

[0002] In the 5G NR (New Radio) system, when a base station has multiple TRPs (Transmission and Reception Point or Transmit / Receive Point), multiple TRPs can be used to provide services to the terminal, including using multiple TRPs to send physical downlink control channels (PDCCH) to the terminal.

[0003] In related technologies, when a base station uses multiple TRPs to repeatedly send PDCCHs for a terminal, the control resource set pool indexes CORESETPoolIndex corresponding to the multiple control resource sets CORESETs corresponding to the multiple linked search space sets SS sets used for PDCCH transmission are the same, and the configuration information of the PDSCHs sent by different TRPs does not need to be distinguished. However, when the CORESETPoolIndex corresponding to the multiple CORESETs corresponding to the multiple linked SS sets are different, the configuration information of the PDSCHs sent by different TRPs needs to be distinguished. In this case, how to configure the configuration information of the PDSCH is a problem that needs to be solved. Summary of the Invention

[0004] The first embodiment of the present application provides a method for configuring a physical downlink shared channel (PDSCH), which is executed by a terminal device and includes:

[0005] Receive first configuration information, where the first configuration information is used to indicate information about at least two search space sets (SS sets) having a linked relationship and a control resource set (CORESET) corresponding to each search space set, wherein the control resource set pool indexes of the CORESETs corresponding to the at least two search space sets are different;

[0006] In response to the first configuration information, configuration information of the physical downlink shared channel PDSCH is determined, wherein downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a linked relationship.

[0007] Optionally, the method further includes: receiving a first media access layer control element, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to a transmission configuration indication TCI domain in the DCI.

[0008] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the specified control resource set pool index.

[0009] Optionally, the designated control resource set pool index is one of 0, 1 or 2.

[0010] Optionally, the designated control resource set pool index is 2, corresponding to the control resource set pool indexes of at least two search space sets having a link relationship.

[0011] Optionally, the designated control resource set pool index is determined according to radio resource control RRC signaling or default rules.

[0012] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and wherein the PDSCH configuration information is the PDSCH configuration information corresponding to the target control resource set pool index;

[0013] The target control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number in the at least two search space sets, or

[0014] The target control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller number among the at least two CORESETs corresponding to the at least two search space sets.

[0015] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0016] Optionally, the method further includes: receiving second configuration information, the second configuration information being used to determine the control resource set pool index corresponding to each of the code points, the configuration information of the PDSCH corresponding to the code point including the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0017] Optionally, the method further includes: receiving RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

[0018] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0019] Optionally, the configuration information of the PDSCH includes at least one of the following: dataScramblingIdentityPDSCH;

[0020] rateMatchPattern; HARQ-ACK feedback configuration information.

[0021] Optionally, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, where:

[0022] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks;

[0023] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

[0024] Optionally, the at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

[0025] A second embodiment of the present application provides a method for configuring a physical downlink shared channel (PDSCH), which is performed by a network device and includes:

[0026] Send first configuration information to enable the terminal device to determine the configuration information of the physical downlink shared channel PDSCH, wherein the first configuration information is used to indicate at least two search space sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set SS set, wherein the control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different, and wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a link relationship.

[0027] Optionally, the method further includes: sending a first media access layer control element, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

[0028] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the specified control resource set pool index.

[0029] Optionally, the designated control resource set pool index is one of 0, 1 or 2.

[0030] Optionally, the designated control resource set pool index is 2, corresponding to the control resource set pool indexes of at least two search space sets having a link relationship.

[0031] Optionally, the designated control resource set pool index is determined according to radio resource control RRC signaling or default rules.

[0032] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the PDSCH configuration information is the PDSCH configuration information corresponding to the target control resource set pool index;

[0033] The target control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number in the at least two search space sets, or

[0034] The target control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller number among the at least two CORESETs corresponding to the at least two search space sets.

[0035] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the PDSCH configuration information is the PDSCH configuration information corresponding to the code point.

[0036] Optionally, the method further includes: sending second configuration information, the second configuration information being used to determine the control resource set pool index corresponding to each of the code points, the configuration information of the PDSCH corresponding to the code point including the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0037] Optionally, the method further includes: sending RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

[0038] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0039] Optionally, the configuration information of the PDSCH includes at least one of the following: dataScramblingIdentityPDSCH;

[0040] rateMatchPattern; HARQ-ACK feedback configuration information.

[0041] Optionally, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, where:

[0042] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks;

[0043] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

[0044] Optionally, the at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

[0045] The third embodiment of the present application provides a physical downlink shared channel (PDSCH) configuration device, the device comprising:

[0046] a receiving unit, configured to receive first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information of a control resource set CORESET corresponding to each search space set, wherein the control resource set pool indexes of the CORESETs corresponding to the at least two search space sets are different;

[0047] A processing unit is used to determine the configuration information of the physical downlink shared channel PDSCH in response to the first configuration information, wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a linked relationship.

[0048] Optionally, the receiving unit is further used to: receive a first media access layer control element, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI domain in the DCI.

[0049] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the processing unit is specifically used to: the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the specified control resource set pool index.

[0050] Optionally, the designated control resource set pool index is one of 0, 1 or 2.

[0051] Optionally, the designated control resource set pool index is 2, corresponding to the control resource set pool indexes of at least two search space sets having a link relationship.

[0052] Optionally, the designated control resource set pool index is determined according to radio resource control RRC signaling or default rules.

[0053] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the processing unit is specifically configured to: the PDSCH configuration information is the PDSCH configuration information corresponding to the target control resource set pool index;

[0054] The target control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number in the at least two search space sets, or

[0055] The target control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller number among the at least two CORESETs corresponding to the at least two search space sets.

[0056] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the processing unit is specifically used to: the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0057] Optionally, the receiving unit is also used to: receive second configuration information, the second configuration information is used to determine the control resource set pool index corresponding to each code point, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0058] Optionally, the receiving unit is further used to: receive RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

[0059] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0060] Optionally, the configuration information of the PDSCH includes at least one of the following: dataScramblingIdentityPDSCH;

[0061] rateMatchPattern; HARQ-ACK feedback configuration information.

[0062] Optionally, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, where:

[0063] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks;

[0064] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

[0065] Optionally, the at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

[0066] The fourth embodiment of the present application provides a physical downlink shared channel (PDSCH) configuration device, the device comprising:

[0067] A sending unit is used to send first configuration information so that the terminal device determines the configuration information of the physical downlink shared channel PDSCH, wherein the first configuration information is used to indicate at least two search space sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set SS set, wherein the control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different, and wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a link relationship.

[0068] Optionally, the sending unit is further used to: send a first media access layer control element, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI domain in the DCI.

[0069] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the configuration information of the physical downlink shared channel PDSCH is the configuration information of the PDSCH corresponding to the specified control resource set pool index.

[0070] Optionally, the designated control resource set pool index is one of 0, 1 or 2.

[0071] Optionally, the designated control resource set pool index is 2, corresponding to the control resource set pool indexes of at least two search space sets having a link relationship.

[0072] Optionally, the designated control resource set pool index is determined according to radio resource control RRC signaling or default rules.

[0073] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the PDSCH configuration information is the PDSCH configuration information corresponding to the target control resource set pool index;

[0074] The target control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number in the at least two search space sets, or

[0075] The target control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller number among the at least two CORESETs corresponding to the at least two search space sets.

[0076] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0077] Optionally, the sending unit is also used to: send second configuration information, where the second configuration information is used to indicate the control resource set pool index corresponding to each code point, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0078] Optionally, the sending unit is further used to: send RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

[0079] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0080] Optionally, the configuration information of the PDSCH includes at least one of the following: dataScramblingIdentityPDSCH;

[0081] rateMatchPattern; HARQ-ACK feedback configuration information.

[0082] Optionally, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, where:

[0083] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks;

[0084] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

[0085] Optionally, the at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

[0086] The fifth aspect embodiment of the present application proposes a communication device, which includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device performs the physical downlink shared channel PDSCH configuration method described in the first aspect embodiment above.

[0087] The sixth aspect embodiment of the present application proposes a communication device, which includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device executes the physical downlink shared channel PDSCH configuration method described in the second aspect embodiment above.

[0088] The seventh aspect embodiment of the present application proposes a communication device, which includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the physical downlink shared channel PDSCH configuration method described in the first aspect embodiment above.

[0089] The eighth aspect embodiment of the present application proposes a communication device, which includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the physical downlink shared channel PDSCH configuration method described in the second aspect embodiment above.

[0090] The ninth aspect of the present application provides a computer-readable storage medium for storing instructions. When the instructions are executed, the physical downlink shared channel (PDSCH) configuration method described in the first aspect of the present application is implemented.

[0091] The tenth embodiment of the present application proposes a computer-readable storage medium for storing instructions. When the instructions are executed, the physical downlink shared channel PDSCH configuration method described in the second embodiment above is implemented.

[0092] The eleventh embodiment of the present application proposes a computer program, which, when executed on a computer, enables the computer to execute the physical downlink shared channel (PDSCH) configuration method described in the first embodiment.

[0093] The twelfth embodiment of the present application proposes a computer program, which, when executed on a computer, enables the computer to execute the physical downlink shared channel (PDSCH) configuration method described in the second embodiment.

[0094] An embodiment of the present application provides a method and apparatus for configuring a physical downlink shared channel (PDSCH). The method and apparatus receive first configuration information, where the first configuration information is used to indicate information of at least two search space sets (SS sets) having a link relationship and a control resource set (CORESET) corresponding to each search space set. In response to the first configuration information, the method and apparatus determine configuration information of the physical downlink shared channel (PDSCH). The downlink control information (DCI) corresponding to the PDSCH is transmitted through at least two physical downlink control channel (PDCCH) candidate time-frequency resources in the at least two search space sets having a link relationship. The method clarifies a method for configuring PDSCH transmission when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets having a link relationship are different, thereby improving the configuration flexibility of the CORESET when the PDCCH is repeatedly sent, and the transmission flexibility of the PDSCH.

[0095] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0097] Figure 1 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application;

[0098] Figure 2 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application;

[0099] Figure 3 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application;

[0100] Figure 4 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application;

[0101] Figure 5 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application;

[0102] Figure 6This is a structural diagram of a physical downlink shared channel (PDSCH) configuration device provided in an embodiment of the present application;

[0103] Figure 7 This is a structural diagram of a physical downlink shared channel (PDSCH) configuration device provided in an embodiment of the present application;

[0104] Figure 8 This is a structural diagram of another physical downlink shared channel PDSCH configuration device provided in an embodiment of the present application;

[0105] Figure 9 It is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0106] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numbers in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0107] The terms used in the embodiments of this application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of this application. The singular forms "a" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0108] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to a determination."

[0109] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0110] The physical downlink shared channel (PDSCH) configuration method and apparatus provided in this application are described in detail below with reference to the accompanying drawings.

[0111] The network device in the embodiment of the present application is an entity on the network side for transmitting or receiving signals. For example, the network device may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present application may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit (Control Unit). The CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0112] The terminal device in the embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be called a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device can be a car with communication function, a smart car, a mobile phone (Mobile Phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (Industrial Control), a wireless terminal device in self-driving (Self-Driving), a wireless terminal device in remote medical surgery (Remote Medical Surgery), a wireless terminal device in smart grid (Smart Grid), a wireless terminal device in transportation safety (Transportation Safety), a wireless terminal device in smart city (Smart City), a wireless terminal device in smart home (Smart Home), etc. The embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.

[0113] Explanation of terms:

[0114] A Transmission and Reception Point (TRP) or Transmit / receivePoint (TRP) corresponds to the serving cell or neighboring cell of a terminal device. A TRP contains one or more panels, each of which contains one or more co-located antennas.

[0115] A control resource set (CORESET) is a configuration resource used for sending downlink control information (DCI) signaling via a downlink control channel PDCCH.

[0116] Control resource set pool index (CORESETPoolIndex). A CORESETPoolIndex value corresponds to one or more CORESETs. It can be understood that each CORESETPoolIndex corresponds to a TRP or a panel. That is, CORESETs corresponding to different CORESETPoolIndex values ​​are used for PDCCH channels of different TRPs or panels.

[0117] The search space set (SS set) is associated with the control resource set CORESET and is used to determine the time-frequency resource configuration information of the downlink control channel PDCCH. A CORESET can be associated with one or more search space sets SSset, and an SS set can only be associated with one CORESET.

[0118] PDCCH: Physical Downlink Control Channel, physical downlink control channel;

[0119] PDSCH: Physical Downlink Shared Channel, physical downlink shared channel;

[0120] PUCCH: Physical Uplink Control Channel, physical uplink control channel;

[0121] PUSCH: Physical Uplink Shared Channel, physical uplink shared channel;

[0122] TCI: transmission configuration indication, transmission configuration indication;

[0123] DCI: Downlink Control Information, downlink control information;

[0124] RRC: Radio Resource Control;

[0125] CSI-RS: channel state information reference signal, channel state information reference signal;

[0126] dataScramblingIdentityPDSCH: PDSCH data scrambling identity;

[0127] rateMatchPattern: rate matching pattern;

[0128] HARQ-ACK: Hybrid Automatic Repeat Request-Acknowledgement.

[0129] See Figure 1 , Figure 1 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application. It should be noted that the method for configuring a physical downlink shared channel (PDSCH) in an embodiment of the present application is executed by a terminal device. Figure 1 As shown, the method may include the following steps:

[0130] Step 101: Receive first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information about a control resource set CORESET corresponding to each search space set.

[0131] Among them, the CORESETPoolIndex of the CORESET corresponding to the at least two search space sets is different.

[0132] Having a linked relationship means that at least two PDCCH candidate time-frequency resources with the same corresponding PDCCH candidate index values ​​in at least two search space sets SS sets are used to send the same downlink control information DCI. Sending the same DCI can be understood as repeated PDCCH transmission.

[0133] Optionally, the first configuration information is sent by the network device through radio resource control RRC signaling.

[0134] Step 102: determining configuration information of a physical downlink shared channel (PDSCH) in response to the first configuration information, wherein downlink control information (DCI) corresponding to the PDSCH is transmitted via at least two physical downlink control channel (PDCCH) candidate time-frequency resources in at least two search space sets having a linked relationship.

[0135] Optionally, the configuration information of PDSCH includes at least one of dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK feedback configuration information.

[0136] The DCI corresponding to the PDSCH is transmitted through at least two PDCCH candidate time-frequency resources with the same index value in at least two search space sets with a linked relationship indicated in step 101.

[0137] Optionally, the configuration information of the PDSCH is determined by receiving RRC signaling.

[0138] In some embodiments, the method further includes: receiving a first medium access layer (MAC) control element (CE, or control unit), where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI domain in the DCI, and determining that the PDSCH configuration information is the PDSCH configuration information corresponding to the specified control resource set pool index CORESETPoolIndex.

[0139] The TCI field corresponds to at least one codepoint. For example, if the TCI field has 3 bits, the TCI field corresponds to 8 codepoints, each of which corresponds to at least one TCI state. Each TCI state corresponds to at least one Quasi Co-location (QCL) type, where QCL Type includes at least one of Type A, Type B, Type C, and Type D.

[0140] Optionally, specify the control resource set pool index CORESETPoolIndex as one of 0, 1, and 2.

[0141] In some implementations, among the code points corresponding to the TCI domain, if each code point corresponds to at most one TCI state, the specified control resource set pool index CORESETPoolIndex is 0 or 1.

[0142] In some implementations, among the code points corresponding to the TCI domain, if at least one code point corresponds to multiple TCI states, the specified control resource set pool index CORESETPoolIndex is 0, 1, or 2.

[0143] Among them, the configuration information of the PDSCH corresponding to the control resource set pool index CORESETPoolIndex being 2 is configured separately, which is different from the PDSCH configuration information corresponding to the control resource set pool index CORESETPoolIndex being 0 or 1.

[0144] Furthermore, the control resource set pool index designated as 2 corresponds to the control resource set pool indexes of at least two search space sets having a link relationship.

[0145] That is, a control resource set pool index is separately configured for at least two linked search space sets. If there is no independent search space set in the control resource set associated with the at least two linked search space sets, the control resource set pool index of this control resource set is also 2. Otherwise, the control resource set pool index of this control resource set is still 0 or 1. That is, the control resource set pool index is 2 only for search space sets in the control resource set that have a linked relationship with other search space sets. An independent search space set refers to a search space set that has no linked relationship with any other search space set.

[0146] In an implementation manner of this embodiment, the designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule.

[0147] That is, according to RRC signaling or default rules, the designated control resource set pool index is determined, and further, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to the designated control resource set pool index.

[0148] In an implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number among the at least two search space sets.

[0149] That is, among the at least two SS sets having a linked relationship, the CORESETPoolIndex corresponding to the CORESET corresponding to the SS set with a smaller number is used as the designated control resource set pool index.

[0150] In one implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller CORESET number among the at least two CORESETs corresponding to the at least two search space sets.

[0151] That is, among the at least two CORESETs corresponding to the at least two SS sets having a link relationship, the CORESETPoolIndex corresponding to the CORESET with a smaller CORESET number is used as the designated control resource set pool index.

[0152] In an implementation manner of this embodiment, the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0153] Furthermore, second configuration information is received, where the second configuration information is used to determine the control resource pool index corresponding to each code point in the TCI domain, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource pool index corresponding to the code point.

[0154] That is, through the association between the code point and the PDSCH configuration information, the corresponding PDSCH configuration information is determined according to the code point. Further, by receiving the second configuration information, the CORESETPoolIndex corresponding to the code point is determined, and the configuration information of the PDSCH corresponding to the code point is the configuration information of the PDSCH corresponding to the CORESETPoolIndex corresponding to the code point. That is, the control resource set pool index is determined by the code point.

[0155] It should be noted that all code points corresponding to the TCI field can correspond to the same CORESETPoolIndex or different CORESETPoolIndex. For example, all eight code points in the TCI field can correspond to CORESETPoolIndex 0. Alternatively, code points 000, 001, and 010 can correspond to CORESETPoolIndex 0, code points 011, 100, and 101 can correspond to CORESETPoolIndex 1, and code points 110 and 111 can correspond to CORESETPoolIndex 2. Each code point can also correspond to multiple control resource set pool indexes. For example, code point 111 can correspond to CORESETPoolIndex 0, 1, 1, 2, and so on.

[0156] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0157] In an embodiment of the present application, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration.

[0158] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indices correspond to different HARQ-ACK codebooks;

[0159] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indices.

[0160] It can be understood that the joint feedback configuration can be a partial combination of HARQ-ACKs corresponding to PDSCHs with different control resource pool indices. For example, there are three PDSCHs corresponding to control resource pool indices 0, 1, and 2. The HARQ-ACK feedback of the PDSCHs corresponding to the control resource pool indices 0 and 1 can be joint feedback, and the HARQ-ACK feedback of the PDSCH corresponding to the control resource pool index 2 can be separate feedback, that is, the HARQ-ACK feedback of the PDCSHs corresponding to the control resource pool indices 0 and 1 uses different bit positions in the same codebook, and the HARQ-ACK feedback of the PDSCH corresponding to the control resource pool index 2 uses another codebook.

[0161] In summary, by receiving the first configuration information, the first configuration information is used to indicate at least two search space sets SS sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set, and the configuration information of the physical downlink shared channel PDSCH is determined in response to the first configuration information, wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in at least two search space sets with a link relationship, and the transmission configuration method of PDSCH is clarified when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, thereby improving the configuration flexibility of CORESET when PDCCH is repeatedly sent, and the transmission flexibility of PDSCH.

[0162] See Figure 2 , Figure 2 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application. It should be noted that the method for configuring a physical downlink shared channel (PDSCH) in an embodiment of the present application is executed by a terminal device. Figure 2 As shown, the method may include the following steps:

[0163] Step 201: Receive first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information about a control resource set CORESET corresponding to each search space set.

[0164] The first configuration information is used to indicate at least two search space sets having a link relationship, and information of a control resource set CORESET corresponding to each search space set SS set.

[0165] The CORESETPoolIndex of the CORESETs corresponding to the at least two search space sets is different.

[0166] Step 202: Receive a first media access layer control element.

[0167] The first MAC CE is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

[0168] The DCI is transmitted via at least two physical downlink control channel (PDCCH) candidate time-frequency resources in at least two linked search space sets. That is, the DCI is the same DCI sent on PDCCH candidate time-frequency resources with the same corresponding PDCCH candidate time-frequency resource index values ​​in at least two search space sets (SS sets). Sending the same DCI can be understood as repeatedly sending the DCI.

[0169] Step 203: Determine configuration information of the physical downlink shared channel PDSCH.

[0170] The PDSCH is a PDSCH scheduled corresponding to a DCI transmitted through at least two PDCCH candidate time-frequency resources in at least two SS sets having a linked relationship.

[0171] Optionally, the configuration information of PDSCH includes at least one of dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK feedback configuration information.

[0172] The dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK of the PDSCH scheduled by the CORESET corresponding to different CORESETPoolIndex need to be distinguished.

[0173] In some implementations, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to a specified control resource set pool index CORESETPoolIndex.

[0174] Optionally, specify the control resource set pool index CORESETPoolIndex as one of 0, 1, and 2.

[0175] In some implementations, among the code points corresponding to the TCI domain, if each code point corresponds to at most one TCI state, the specified control resource set pool index CORESETPoolIndex is 0 or 1.

[0176] In some implementations, among the code points corresponding to the TCI domain, if at least one code point corresponds to multiple TCI states, the specified control resource set pool index CORESETPoolIndex is 0, 1, or 2.

[0177] Among them, the configuration information of the PDSCH corresponding to the control resource set pool index CORESETPoolIndex being 2 is configured separately, which is different from the PDSCH configuration information corresponding to the control resource set pool index CORESETPoolIndex being 0 or 1.

[0178] Furthermore, the control resource set pool index designated as 2 corresponds to the control resource set pool indexes of at least two search space sets having a link relationship.

[0179] That is, a control resource set pool index is separately configured for at least two linked search space sets. If there is no independent search space set in the control resource set associated with the at least two linked search space sets, the control resource set pool index of this control resource set is also 2. Otherwise, the control resource set pool index of this control resource set is still 0 or 1. That is, the control resource set pool index is 2 only for search space sets in the control resource set that have a linked relationship with other search space sets. An independent search space set refers to a search space set that has no linked relationship with any other search space set.

[0180] In an implementation manner of this embodiment, the designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule.

[0181] That is, according to RRC signaling or default rules, the designated control resource set pool index is determined, and further, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to the designated control resource set pool index.

[0182] In an implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number among the at least two search space sets.

[0183] That is, among the at least two SS sets with a linked relationship, the CORESETPoolIndex corresponding to the CORESET corresponding to the SS set with the smaller number is used as the designated control resource set pool index. For example, SS set #1 and SS set #2 are linked, the CORESET corresponding to SS set #1 is CORESET #3, and the CORESET corresponding to SS set #2 is CORESET #0, then the CORESETPoolIndex 1 corresponding to CORESET #3 is used as the designated control resource set pool index.

[0184] In one implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller CORESET number among the at least two CORESETs corresponding to the at least two search space sets.

[0185] That is, among the at least two CORESETs corresponding to the at least two SS sets with a linked relationship, the CORESETPoolIndex corresponding to the CORESET with the smaller CORESET number is used as the designated control resource set pool index. For example, SS set #1 and SS set #2 have a linked relationship, the CORESET corresponding to SS set #1 is CORESET #3, and the CORESET corresponding to SS set #2 is CORESET #0, then the CORESETPoolIndex 0 corresponding to CORESET #0 is used as the designated control resource set pool index.

[0186] In an implementation manner of this embodiment, the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0187] Furthermore, second configuration information is received, where the second configuration information is used to determine the control resource pool index corresponding to each code point in the TCI domain, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource pool index corresponding to the code point.

[0188] That is, through the association between the code point and the PDSCH configuration information, the corresponding PDSCH configuration information is determined according to the code point. Further, by receiving the second configuration information, the CORESETPoolIndex corresponding to the code point is determined, and the configuration information of the PDSCH corresponding to the code point is the configuration information of the PDSCH corresponding to the CORESETPoolIndex corresponding to the code point. That is, the control resource set pool index is determined by the code point.

[0189] It should be noted that all code points corresponding to the TCI field can correspond to the same CORESETPoolIndex or different CORESETPoolIndex. For example, all eight code points in the TCI field can correspond to CORESETPoolIndex 0. Alternatively, code points 000, 001, and 010 can correspond to CORESETPoolIndex 0, code points 011, 100, and 101 can correspond to CORESETPoolIndex 1, and code points 110 and 111 can correspond to CORESETPoolIndex 2. Each code point can also correspond to multiple control resource set pool indexes. For example, code point 111 can correspond to CORESETPoolIndex 0, 1, 1, 2, and so on.

[0190] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0191] In summary, by receiving the first configuration information, which is used to indicate at least two search space sets SS sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set, receiving the first media access layer control element, and determining the configuration information of the physical downlink shared channel PDSCH, the transmission configuration method of the PDSCH is clarified when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, thereby improving the configuration flexibility of the CORESET when the PDCCH is repeatedly sent, and the transmission flexibility of the PDSCH.

[0192] See Figure 3 , Figure 3 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application. It should be noted that the method for configuring a physical downlink shared channel (PDSCH) in an embodiment of the present application is executed by a terminal device. Figure 3 As shown, the method may include the following steps:

[0193] Step 301 : determining configuration information of a physical downlink shared channel (PDSCH), wherein downlink control information (DCI) corresponding to the PDSCH is transmitted via at least two physical downlink control channel (PDCCH) candidate time-frequency resources in at least two search space sets having a linked relationship.

[0194] Optionally, the configuration information of PDSCH includes at least one of dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK feedback configuration information.

[0195] The dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK of the PDSCH scheduled by the CORESET corresponding to different CORESETPoolIndex need to be distinguished.

[0196] In some implementations, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to a specified control resource set pool index CORESETPoolIndex.

[0197] Optionally, specify the control resource set pool index CORESETPoolIndex as one of 0, 1, and 2.

[0198] In some implementations, among the code points corresponding to the TCI domain, if each code point corresponds to at most one TCI state, the specified control resource set pool index CORESETPoolIndex is 0 or 1.

[0199] In some implementations, among the code points corresponding to the TCI domain, if at least one code point corresponds to multiple TCI states, the specified control resource set pool index CORESETPoolIndex is 0, 1, or 2.

[0200] Among them, the configuration information of the PDSCH corresponding to the control resource set pool index CORESETPoolIndex being 2 is configured separately, which is different from the PDSCH configuration information corresponding to the control resource set pool index CORESETPoolIndex being 0 or 1.

[0201] Furthermore, the control resource set pool index designated as 2 corresponds to the control resource set pool indexes of at least two search space sets having a link relationship.

[0202] That is, a control resource set pool index is separately configured for at least two linked search space sets. If there is no independent search space set in the control resource set associated with the at least two linked search space sets, the control resource set pool index of this control resource set is also 2. Otherwise, the control resource set pool index of this control resource set is still 0 or 1. That is, the control resource set pool index is 2 only for search space sets in the control resource set that have a linked relationship with other search space sets. An independent search space set refers to a search space set that has no linked relationship with any other search space set.

[0203] In an implementation manner of this embodiment, the designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule.

[0204] That is, according to RRC signaling or default rules, the designated control resource set pool index is determined, and further, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to the designated control resource set pool index.

[0205] In an implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number among the at least two search space sets.

[0206] That is, among the at least two SS sets with a linked relationship, the CORESETPoolIndex corresponding to the CORESET corresponding to the SS set with the smaller number is used as the designated control resource set pool index. For example, SS set #1 and SS set #2 are linked, the CORESET corresponding to SS set #1 is CORESET #3, and the CORESET corresponding to SS set #2 is CORESET #0, then the CORESETPoolIndex 1 corresponding to CORESET #3 is used as the designated control resource set pool index.

[0207] In one implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller CORESET number among the at least two CORESETs corresponding to the at least two search space sets.

[0208] That is, among the at least two CORESETs corresponding to the at least two SS sets with a linked relationship, the CORESETPoolIndex corresponding to the CORESET with the smaller CORESET number is used as the designated control resource set pool index. For example, SS set #1 and SS set #2 have a linked relationship, the CORESET corresponding to SS set #1 is CORESET #3, and the CORESET corresponding to SS set #2 is CORESET #0, then the CORESETPoolIndex 0 corresponding to CORESET #0 is used as the designated control resource set pool index.

[0209] In an implementation manner of this embodiment, the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0210] Furthermore, second configuration information is received, where the second configuration information is used to determine the control resource pool index corresponding to each code point in the TCI domain, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource pool index corresponding to the code point.

[0211] That is, through the association between the code point and the PDSCH configuration information, the corresponding PDSCH configuration information is determined according to the code point. Further, by receiving the second configuration information, the CORESETPoolIndex corresponding to the code point is determined, and the configuration information of the PDSCH corresponding to the code point is the configuration information of the PDSCH corresponding to the CORESETPoolIndex corresponding to the code point. That is, the control resource set pool index is determined by the code point.

[0212] It should be noted that all code points corresponding to the TCI field can correspond to the same CORESETPoolIndex or different CORESETPoolIndex. For example, all eight code points in the TCI field can correspond to CORESETPoolIndex 0. Alternatively, code points 000, 001, and 010 can correspond to CORESETPoolIndex 0, code points 011, 100, and 101 can correspond to CORESETPoolIndex 1, and code points 110 and 111 can correspond to CORESETPoolIndex 2. Each code point can also correspond to multiple control resource set pool indexes. For example, code point 111 can correspond to CORESETPoolIndex 0, 1, 1, 2, and so on.

[0213] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0214] In summary, by receiving the first configuration information, which is used to indicate at least two search space sets SS sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set, receiving the first media access layer control element, and determining the configuration information of the physical downlink shared channel PDSCH, the transmission configuration method of the PDSCH is clarified when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, thereby improving the configuration flexibility of the CORESET when the PDCCH is repeatedly sent, and the transmission flexibility of the PDSCH.

[0215] In summary, by determining the configuration information of the physical downlink shared channel PDSCH, wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in at least two search space sets with a linked relationship, the transmission configuration method of PDSCH is clarified when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a linked relationship is different, thereby improving the configuration flexibility of CORESET when PDCCH is repeatedly sent, and the transmission flexibility of PDSCH.

[0216] See Figure 4 , Figure 4 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application. It should be noted that the method for configuring a physical downlink shared channel (PDSCH) in an embodiment of the present application is executed by a network device. Figure 4 As shown, the method may include the following steps:

[0217] Step 401: Send first configuration information to enable the terminal device to determine the configuration information of the physical downlink shared channel PDSCH, wherein the first configuration information is used to indicate at least two search space sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set SS set, and wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in at least two search space sets with a link relationship.

[0218] The control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different.

[0219] Having a linked relationship means that at least two PDCCH candidate time-frequency resources with the same corresponding PDCCH candidate index values ​​in at least two search space sets SS sets are used to send the same downlink control information DCI. Sending the same DCI can be understood as repeated PDCCH transmission.

[0220] In some implementations, the first configuration information is sent by the network device through radio resource control RRC signaling.

[0221] Optionally, the configuration information of PDSCH includes at least one of dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK feedback configuration information.

[0222] The DCI corresponding to the PDSCH is transmitted through at least two PDCCH candidate time-frequency resources with the same index value in at least two search space sets with a linked relationship.

[0223] Optionally, the method further includes: sending RRC signaling so that the terminal device determines the configuration information of the PDSCH through the RRC signaling.

[0224] In some embodiments, the method further includes: sending a first medium access layer (MAC) control element (CE, or control unit), where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI domain in the DCI, and determining that the PDSCH configuration information is the PDSCH configuration information corresponding to the specified control resource set pool index CORESETPoolIndex.

[0225] The TCI field corresponds to at least one codepoint. For example, if the TCI field has 3 bits, the TCI field corresponds to 8 codepoints, each of which corresponds to at least one TCI state. Each TCI state corresponds to at least one Quasi Co-location (QCL) type, where QCL Type includes at least one of Type A, Type B, Type C, and Type D.

[0226] Optionally, specify the control resource set pool index CORESETPoolIndex as one of 0, 1, and 2.

[0227] In some implementations, among the code points corresponding to the TCI domain, if each code point corresponds to at most one TCI state, the specified control resource set pool index CORESETPoolIndex is 0 or 1.

[0228] In some implementations, among the code points corresponding to the TCI domain, if at least one code point corresponds to multiple TCI states, the specified control resource set pool index CORESETPoolIndex is 0, 1, or 2.

[0229] Among them, the configuration information of the PDSCH corresponding to the control resource set pool index CORESETPoolIndex being 2 is configured separately, which is different from the PDSCH configuration information corresponding to the control resource set pool index CORESETPoolIndex being 0 or 1.

[0230] Furthermore, the control resource set pool index designated as 2 corresponds to the control resource set pool indexes of at least two search space sets having a link relationship.

[0231] That is, a control resource set pool index is separately configured for at least two linked search space sets. If there is no independent search space set in the control resource set associated with the at least two linked search space sets, the control resource set pool index of this control resource set is also 2. Otherwise, the control resource set pool index of this control resource set is still 0 or 1. That is, the control resource set pool index is 2 only for search space sets in the control resource set that have a linked relationship with other search space sets. An independent search space set refers to a search space set that has no linked relationship with any other search space set.

[0232] In an implementation manner of this embodiment, the designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule.

[0233] That is, according to RRC signaling or default rules, the designated control resource set pool index is determined, and further, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to the designated control resource set pool index.

[0234] In an implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number among the at least two search space sets.

[0235] That is, among the at least two SS sets having a linked relationship, the CORESETPoolIndex corresponding to the CORESET corresponding to the SS set with a smaller number is used as the designated control resource set pool index.

[0236] In one implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller CORESET number among the at least two CORESETs corresponding to the at least two search space sets.

[0237] That is, among the at least two CORESETs corresponding to the at least two SS sets having a link relationship, the CORESETPoolIndex corresponding to the CORESET with a smaller CORESET number is used as the designated control resource set pool index.

[0238] In an implementation manner of this embodiment, the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0239] Furthermore, second configuration information is sent, which is used to determine the control resource set pool index corresponding to each code point in the TCI domain, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0240] That is, through the association between the code point and the PDSCH configuration information, the corresponding PDSCH configuration information is determined according to the code point. Further, by sending the second configuration information, the terminal device determines the CORESETPoolIndex corresponding to the code point, and the configuration information of the PDSCH corresponding to the code point is the configuration information of the PDSCH corresponding to the CORESETPoolIndex corresponding to the code point. That is, the control resource set pool index is determined by the code point.

[0241] It should be noted that all code points corresponding to the TCI field can correspond to the same CORESETPoolIndex or different CORESETPoolIndex. For example, all eight code points in the TCI field can correspond to CORESETPoolIndex 0. Alternatively, code points 000, 001, and 010 can correspond to CORESETPoolIndex 0, code points 011, 100, and 101 can correspond to CORESETPoolIndex 1, and code points 110 and 111 can correspond to CORESETPoolIndex 2. Each code point can also correspond to multiple control resource set pool indexes. For example, code point 111 can correspond to CORESETPoolIndex 0, 1, 1, 2, and so on.

[0242] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0243] In an embodiment of the present application, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration.

[0244] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indices correspond to different HARQ-ACK codebooks;

[0245] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indices.

[0246] It can be understood that the joint feedback configuration can be a partial combination of HARQ-ACKs corresponding to PDSCHs with different control resource pool indices. For example, there are three PDSCHs corresponding to control resource pool indices 0, 1, and 2. The HARQ-ACK feedback of the PDSCHs corresponding to the control resource pool indices 0 and 1 can be joint feedback, and the HARQ-ACK feedback of the PDSCH corresponding to the control resource pool index 2 can be separate feedback, that is, the HARQ-ACK feedback of the PDCSHs corresponding to the control resource pool indices 0 and 1 uses different bit positions in the same codebook, and the HARQ-ACK feedback of the PDSCH corresponding to the control resource pool index 2 uses another codebook.

[0247] In summary, by sending the first configuration information, the terminal device determines the configuration information of the physical downlink shared channel PDSCH, wherein the first configuration information is used to indicate at least two search space sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set SS set, and wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in at least two search space sets with a link relationship, which clarifies the transmission configuration method of PDSCH when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, thereby improving the configuration flexibility of CORESET when PDCCH is repeatedly sent, and the transmission flexibility of PDSCH.

[0248] See Figure 5 , Figure 5 This is a flow chart of a method for configuring a physical downlink shared channel (PDSCH) provided in an embodiment of the present application. It should be noted that the method for configuring a physical downlink shared channel (PDSCH) in an embodiment of the present application is executed by a network device. Figure 5 As shown, the method may include the following steps:

[0249] Step 501: Send first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information about a control resource set CORESET corresponding to each search space set.

[0250] The control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different.

[0251] In some implementations, the first configuration information is sent via radio resource control (RRC) signaling.

[0252] Step 502: Send a first media access layer control element.

[0253] The first MAC CE is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

[0254] The DCI is transmitted via at least two physical downlink control channel (PDCCH) candidate time-frequency resources in at least two linked search space sets. That is, the DCI is the same DCI sent on PDCCH candidate time-frequency resources with the same corresponding PDCCH candidate time-frequency resource index values ​​in at least two search space sets (SS sets). Sending the same DCI can be understood as repeatedly sending the DCI.

[0255] Step 503: Send RRC signaling to enable the terminal device to determine the configuration information of the physical downlink shared channel PDSCH.

[0256] The PDSCH is a PDSCH scheduled corresponding to a DCI transmitted through at least two PDCCH candidate time-frequency resources in at least two SS sets having a linked relationship.

[0257] Optionally, the configuration information of PDSCH includes at least one of dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK feedback configuration information.

[0258] The dataScramblingIdentityPDSCH, rateMatchPattern and HARQ-ACK of the PDSCH scheduled by the CORESET corresponding to different CORESETPoolIndex need to be distinguished.

[0259] In some implementations, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to a specified control resource set pool index CORESETPoolIndex.

[0260] In some implementations, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index CORESETPoolIndex.

[0261] Optionally, specify the control resource set pool index CORESETPoolIndex as one of 0, 1, and 2.

[0262] In some implementations, among the code points corresponding to the TCI domain, if each code point corresponds to at most one TCI state, the specified control resource set pool index CORESETPoolIndex is 0 or 1.

[0263] In some implementations, among the code points corresponding to the TCI domain, if at least one code point corresponds to multiple TCI states, the specified control resource set pool index CORESETPoolIndex is 0, 1, or 2.

[0264] Among them, the configuration information of the PDSCH corresponding to the control resource set pool index CORESETPoolIndex being 2 is configured separately, which is different from the PDSCH configuration information corresponding to the control resource set pool index CORESETPoolIndex being 0 or 1.

[0265] Furthermore, the control resource set pool index designated as 2 corresponds to the control resource set pool indexes of at least two search space sets having a link relationship.

[0266] That is, a control resource set pool index is separately configured for at least two linked search space sets. If there is no independent search space set in the control resource set associated with the at least two linked search space sets, the control resource set pool index of this control resource set is also 2. Otherwise, the control resource set pool index of this control resource set is still 0 or 1. That is, the control resource set pool index is 2 only for search space sets in the control resource set that have a linked relationship with other search space sets. An independent search space set refers to a search space set that has no linked relationship with any other search space set.

[0267] In an implementation manner of this embodiment, the designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule.

[0268] That is, according to RRC signaling or default rules, the designated control resource set pool index is determined, and further, the PDSCH configuration information is determined to be the PDSCH configuration information corresponding to the designated control resource set pool index.

[0269] In an implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number among the at least two search space sets.

[0270] That is, among the at least two SS sets with a linked relationship, the CORESETPoolIndex corresponding to the CORESET corresponding to the SS set with the smaller number is used as the designated control resource set pool index. For example, SS set #1 and SS set #2 are linked, the CORESET corresponding to SS set #1 is CORESET #3, and the CORESET corresponding to SS set #2 is CORESET #0, then the CORESETPoolIndex 1 corresponding to CORESET #3 is used as the designated control resource set pool index.

[0271] In one implementation of this embodiment, the designated control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller CORESET number among the at least two CORESETs corresponding to the at least two search space sets.

[0272] That is, among the at least two CORESETs corresponding to the at least two SS sets with a linked relationship, the CORESETPoolIndex corresponding to the CORESET with the smaller CORESET number is used as the designated control resource set pool index. For example, SS set #1 and SS set #2 have a linked relationship, the CORESET corresponding to SS set #1 is CORESET #3, and the CORESET corresponding to SS set #2 is CORESET #0, then the CORESETPoolIndex 0 corresponding to CORESET #0 is used as the designated control resource set pool index.

[0273] In an implementation manner of this embodiment, the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0274] Furthermore, second configuration information is sent, which is used to determine the control resource set pool index corresponding to each code point in the TCI domain, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0275] That is, through the association between the code point and the PDSCH configuration information, the corresponding PDSCH configuration information is determined according to the code point. Further, the second configuration information is sent and received so that the terminal device determines the CORESETPoolIndex corresponding to the code point, and the configuration information of the PDSCH corresponding to the code point is the configuration information of the PDSCH corresponding to the CORESETPoolIndex corresponding to the code point. That is, the control resource set pool index is determined by the code point.

[0276] It should be noted that all code points corresponding to the TCI field can correspond to the same CORESETPoolIndex or different CORESETPoolIndex. For example, all eight code points in the TCI field can correspond to CORESETPoolIndex 0. Alternatively, code points 000, 001, and 010 can correspond to CORESETPoolIndex 0, code points 011, 100, and 101 can correspond to CORESETPoolIndex 1, and code points 110 and 111 can correspond to CORESETPoolIndex 2. Each code point can also correspond to multiple control resource set pool indexes. For example, code point 111 can correspond to CORESETPoolIndex 0, 1, 1, 2, and so on.

[0277] In summary, by sending the first configuration information, which is used to indicate at least two search space sets SS sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set, sending the first media access layer control element, and sending RRC signaling, so that the terminal device can determine the configuration information of the physical downlink shared channel PDSCH, the transmission configuration method of PDSCH is clarified when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, and the configuration flexibility of CORESET when PDCCH is repeatedly sent, as well as the transmission flexibility of PDSCH, are improved.

[0278] Corresponding to the physical downlink shared channel PDSCH configuration method provided in the above-mentioned embodiments, the present application also provides a physical downlink shared channel PDSCH configuration device. Since the physical downlink shared channel PDSCH configuration device provided in the embodiments of the present application corresponds to the methods provided in the above-mentioned embodiments, the implementation method of the physical downlink shared channel PDSCH configuration method is also applicable to the physical downlink shared channel PDSCH configuration device provided in the following embodiments, and will not be described in detail in the following embodiments.

[0279] See Figure 6 , Figure 6 A structural diagram of a physical downlink shared channel (PDSCH) configuration device provided in an embodiment of the present application.

[0280] like Figure 6 As shown, the physical downlink shared channel PDSCH configuration device 600 includes: a receiving unit 610 and a processing unit 620.

[0281] The receiving unit 610 is configured to receive first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information about a control resource set CORESET corresponding to each search space set, wherein the control resource set pool indexes of the CORESETs corresponding to the at least two search space sets are different;

[0282] The processing unit 620 is used to determine the configuration information of the physical downlink shared channel PDSCH in response to the first configuration information, wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a linked relationship.

[0283] Optionally, the receiving unit 610 is further used to: receive a first media access layer control element, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI domain in the DCI.

[0284] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the processing unit 620 is specifically used to: the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the specified control resource set pool index.

[0285] Optionally, the designated control resource set pool index is one of 0, 1 or 2.

[0286] Optionally, the designated control resource set pool index is 2, corresponding to the control resource set pool indexes of at least two search space sets having a link relationship.

[0287] Optionally, the designated control resource set pool index is determined according to radio resource control RRC signaling or default rules.

[0288] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the processing unit 620 is specifically configured to: the PDSCH configuration information is the PDSCH configuration information corresponding to the target control resource set pool index;

[0289] The target control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number in the at least two search space sets, or

[0290] The target control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller number among the at least two CORESETs corresponding to the at least two search space sets.

[0291] Optionally, in the at least one code point, each code point corresponds to one or more TCI states, and the processing unit 620 is specifically configured to: the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0292] Optionally, the receiving unit 610 is also used to: receive second configuration information, the second configuration information is used to determine the control resource set pool index corresponding to each code point, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

[0293] Optionally, the receiving unit 610 is further configured to: receive RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

[0294] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0295] Optionally, the configuration information of the PDSCH includes at least one of the following: dataScramblingIdentityPDSCH;

[0296] rateMatchPattern; HARQ-ACK feedback configuration information.

[0297] Optionally, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, where:

[0298] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks;

[0299] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

[0300] Optionally, the at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

[0301] The physical downlink shared channel PDSCH configuration device of this embodiment can determine the configuration information of the physical downlink shared channel PDSCH by receiving first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets with a link relationship and information of the control resource set CORESET corresponding to each search space set. The downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a link relationship. The transmission configuration method of PDSCH is clarified when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, thereby improving the configuration flexibility of CORESET when PDCCH is repeatedly sent, and the transmission flexibility of PDSCH.

[0302] See Figure 7 , Figure 7 A structural diagram of a physical downlink shared channel (PDSCH) configuration device provided in an embodiment of the present application.

[0303] like Figure 7 As shown, the physical downlink shared channel PDSCH configuration device 700 includes: a sending unit 710.

[0304] The sending unit 710 is configured to send the first configuration information.

[0305] So that the terminal device determines the configuration information of the physical downlink shared channel PDSCH, wherein the first configuration information is used to indicate at least two search space sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set SS set, wherein the control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different, and wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a link relationship.

[0306] Optionally, the sending unit 710 is further used to: send a first media access layer control element, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to the transmission configuration indication TCI domain in the DCI.

[0307] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the configuration information of the physical downlink shared channel PDSCH is the configuration information of the PDSCH corresponding to the specified control resource set pool index.

[0308] Optionally, the designated control resource set pool index is one of 0, 1 or 2.

[0309] Optionally, the designated control resource set pool index is 2, corresponding to the control resource set pool indexes of at least two search space sets having a link relationship.

[0310] Optionally, the designated control resource set pool index is determined according to radio resource control RRC signaling or default rules.

[0311] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the PDSCH configuration information is the PDSCH configuration information corresponding to the target control resource set pool index;

[0312] The target control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with a smaller number in the at least two search space sets, or

[0313] The target control resource set pool index is the control resource set pool index corresponding to the CORESET with a smaller number among the at least two CORESETs corresponding to the at least two search space sets.

[0314] Optionally, in the at least one code point, each code point corresponds to one or more TCI states; the configuration information of the PDSCH is the configuration information of the PDSCH corresponding to the code point.

[0315] Optionally, the sending unit 710 is also used to: send second configuration information, where the second configuration information is used to indicate the control resource pool index corresponding to each code point, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource pool index corresponding to the code point.

[0316] Optionally, the sending unit 710 is further configured to: send RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

[0317] Optionally, the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

[0318] Optionally, the configuration information of the PDSCH includes at least one of the following: dataScramblingIdentityPDSCH;

[0319] rateMatchPattern; HARQ-ACK feedback configuration information.

[0320] Optionally, the HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, where:

[0321] The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks;

[0322] The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

[0323] Optionally, the at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

[0324] The physical downlink shared channel PDSCH configuration device of this embodiment can send the first configuration information.

[0325] So that the terminal device can determine the configuration information of the physical downlink shared channel PDSCH, wherein the first configuration information is used to indicate at least two search space sets with a link relationship, and information of the control resource set CORESET corresponding to each search space set SS set, wherein the control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different, and wherein the downlink control information DCI corresponding to the PDSCH is transmitted through at least two physical downlink control channel PDCCH candidate time-frequency resources in the at least two search space sets with a link relationship, clarifying the transmission configuration method of PDSCH when the CORESETPoolIndex corresponding to multiple CORESETs corresponding to multiple SS sets with a link relationship is different, thereby improving the configuration flexibility of CORESET when PDCCH is repeatedly sent, and the transmission flexibility of PDSCH.

[0326] In order to implement the above embodiment, the embodiment of the present application further proposes a communication device, comprising: a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to enable the device to perform Figures 1 to 3 The method shown in the embodiment.

[0327] In order to implement the above embodiment, the embodiment of the present application further proposes a communication device, comprising: a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory to enable the device to perform Figures 4 and 5 The method shown in the embodiment.

[0328] In order to implement the above embodiment, the embodiment of the present application also proposes a communication device, comprising: a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, the processor is used to run the code instructions to execute Figures 1 to 3 The method shown in the embodiment.

[0329] In order to implement the above embodiment, the embodiment of the present application also proposes a communication device, comprising: a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, the processor is used to run the code instructions to execute Figures 4 and 5 The method shown in the embodiment.

[0330] See Figure 8 , Figure 8This is a schematic diagram of the structure of another physical downlink shared channel (PDSCH) configuration device provided in an embodiment of the present disclosure. Physical downlink shared channel (PDSCH) configuration device 800 can be a network device, a terminal device, or a chip, chip system, or processor that supports the network device implementing the above-mentioned method. It can also be a chip, chip system, or processor that supports the terminal device implementing the above-mentioned method. This device can be used to implement the method described in the above-mentioned method embodiment. For details, please refer to the description of the above-mentioned method embodiment.

[0331] The physical downlink shared channel (PDSCH) configuration apparatus 800 may include one or more processors 801. Processor 801 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit (CPU). The baseband processor may be used to process communication protocols and communication data, while the CPU may be used to control the physical downlink shared channel (PDSCH) configuration apparatus (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0332] Optionally, the physical downlink shared channel (PDSCH) configuration device 800 may further include one or more memories 802, on which a computer program 803 may be stored. The processor 801 executes the computer program 803 to cause the physical downlink shared channel (PDSCH) configuration device 800 to perform the method described in the above method embodiment. The computer program 703 may be fixed in the processor 801. In this case, the processor 801 may be implemented by hardware.

[0333] Optionally, data may also be stored in the memory 802. The physical downlink shared channel PDSCH configuration device 700 and the memory 802 may be provided separately or integrated together.

[0334] Optionally, the physical downlink shared channel (PDSCH) configuration apparatus 800 may further include a transceiver 805 and an antenna 806. The transceiver 805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is configured to implement transceiver functions. The transceiver 705 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is configured to implement a transmitting function.

[0335] Optionally, the physical downlink shared channel (PDSCH) configuration apparatus 800 may further include one or more interface circuits 807. The interface circuit 807 is configured to receive code instructions and transmit them to the processor 801. The processor 801 executes the code instructions to enable the physical downlink shared channel (PDSCH) configuration apparatus 800 to perform the method described in the above method embodiment.

[0336] The physical downlink shared channel PDSCH configuration device 800 is a terminal device: the transceiver 805 is used to perform Figure 1 Step 101 in Figure 2 Step 201-step 202 in the process; processor 801 is used to execute Figure 1 Step 102 in Figure 2 Step 203 in Figure 3 Step 301 in .

[0337] The physical downlink shared channel PDSCH configuration device 800 is a network device, and the transceiver 805 is used to perform Figure 4 Step 401 in Figure 5 Step 501-step 502 in.

[0338] In one implementation, processor 801 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0339] In one implementation, the physical downlink shared channel PDSCH configuration device 800 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiment. The processor and transceiver described in the present disclosure can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0340] The physical downlink shared channel PDSCH configuration device described in the above embodiments may be a network device or a terminal device, but the scope of the physical downlink shared channel PDSCH configuration device described in the present disclosure is not limited thereto, and the structure of the physical downlink shared channel PDSCH configuration device may not be limited thereto. Figure 6-Figure 7 The physical downlink shared channel PDSCH configuration device can be an independent device or can be part of a larger device. For example, the physical downlink shared channel PDSCH configuration device can be:

[0341] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0342] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0343] (3) ASIC, such as modem;

[0344] (4) Modules that can be embedded in other devices;

[0345] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0346] (6)Others, etc.

[0347] For the case where the physical downlink shared channel PDSCH configuration device can be a chip or a chip system, please refer to Figure 9 Schematic diagram of the chip structure shown. Figure 9 The chip shown includes a processor 901 and an interface 902. There may be one or more processors 901 and there may be more than one interface 902.

[0348] For the case where the chip is used to implement the functions of the network device in the embodiments of the present disclosure:

[0349] Interface 902, used for transmitting code instructions to the processor;

[0350] Processor 901 is used to execute code instructions to perform the following Figures 1 to 3 method.

[0351] For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:

[0352] Interface 902, used for transmitting code instructions to the processor;

[0353] Processor 901 is used to execute code instructions to perform the following Figures 4 and 5 method.

[0354] Optionally, the chip further includes a memory 903, which is used to store necessary computer programs and data.

[0355] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement functionality for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present disclosure.

[0356] The present disclosure also provides a communication system comprising the aforementioned Figure 6-Figure 7 In the embodiment, the physical downlink shared channel PDSCH configuration device as a terminal device and the physical downlink shared channel PDSCH configuration device as a network device, or the system includes the aforementioned Figure 8 In the embodiment, the physical downlink shared channel PDSCH configuration device is used as a terminal device and the physical downlink shared channel PDSCH configuration device is used as a network device.

[0357] The present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0358] The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0359] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can 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. When the computer program is loaded and executed on a computer, the process or function according to the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can 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 can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. 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 or data center that includes one or more available media integrated. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0360] Those skilled in the art will understand that the various numerical numbers such as first and second involved in the present disclosure are only for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, and also indicate the order of precedence.

[0361] The at least one in the present disclosure can also be described as one or more, and the multiple can be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0362] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0363] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0364] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0365] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0366] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of the present disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and this document is not limited here.

[0367] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for configuring a physical downlink shared channel (PDSCH), characterized in that: The method is executed by a terminal device, and includes: Receive first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information of a control resource set CORESET corresponding to each search space set, wherein the control resource set pool indexes of the CORESETs corresponding to the at least two search space sets are different; In response to the first configuration information, determine configuration information of a physical downlink shared channel (PDSCH), wherein downlink control information (DCI) corresponding to the PDSCH is transmitted through at least two physical downlink control channel (PDCCH) candidate time-frequency resources in the at least two search space sets having a linked relationship; The PDSCH configuration information is the configuration information of the PDSCH corresponding to the specified control resource set pool index; wherein, in at least one code point corresponding to the TCI field in the DCI, each code point corresponds to a TCI state, and the designated control resource set pool index is 0 or 1; or, In at least one code point corresponding to the TCI field in the DCI, each code point corresponds to multiple TCI states, and the designated control resource set pool index is one of 0, 1, and 2; or, Separately configuring a control resource set pool index for at least two search space sets having a link relationship; in response to the absence of an independent search space set in a CORESET associated with the at least two search space sets having a link relationship, determining that the control resource set pool index of the CORESET associated with the at least two search space sets having a link relationship is 2, and the designated control resource set pool index is the control resource set pool index of the at least two search space sets having a link relationship corresponding to index 2; or The designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule, wherein the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with the smallest number in the at least two search space sets; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET with the smallest number among the at least two CORESETs corresponding to the at least two search space sets; or The designated control resource set pool index is a control resource set pool index corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

2. The method according to claim 1, characterized in that The method further comprises: A first media access layer control element is received, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to a transmission configuration indication TCI field in the DCI.

3. The method according to claim 2, characterized in that The method further comprises: Second configuration information is received, where the second configuration information is used to determine a control resource set pool index corresponding to each code point, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

4. The method according to any one of claims 1 to 3, characterized in that The method further includes: receiving RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

5. The method according to claim 4, characterized in that The RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

6. The method according to claim 1, wherein The PDSCH configuration information includes at least one of the following: dataScramblingIdentityPDSCH; rateMatchPattern; HARQ-ACK feedback configuration information.

7. The method according to claim 6, characterized in that The HARQ-ACK feedback configuration information includes an independent feedback configuration or a joint feedback configuration, wherein: The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks; The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

8. The method according to claim 1, characterized in that The at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

9. A method for configuring a physical downlink shared channel (PDSCH), characterized in that: The method is performed by a network device, and includes: Sending first configuration information to enable the terminal device to determine configuration information of a physical downlink shared channel (PDSCH), wherein the first configuration information is used to indicate at least two search space sets (SS sets) having a linked relationship, and information of a control resource set (CORESET) corresponding to each search space set, wherein the control resource set pool indexes of the CORESETs corresponding to the at least two search space sets are different, and wherein the downlink control information (DCI) corresponding to the PDSCH is transmitted through at least two physical downlink control channel (PDCCH) candidate time-frequency resources in the at least two search space sets having a linked relationship; The PDSCH configuration information is the configuration information of the PDSCH corresponding to the specified control resource set pool index; wherein, in at least one code point corresponding to the TCI field in the DCI, each code point corresponds to a TCI state, and the designated control resource set pool index is 0 or 1; or, In at least one code point corresponding to the TCI field in the DCI, each code point corresponds to multiple TCI states, and the designated control resource set pool index is one of 0, 1, and 2; or, Separately configuring a control resource set pool index for at least two search space sets having a link relationship; in response to the absence of an independent search space set in a CORESET associated with the at least two search space sets having a link relationship, determining that the control resource set pool index of the CORESET associated with the at least two search space sets having a link relationship is 2, and the designated control resource set pool index is the control resource set pool index of the at least two search space sets having a link relationship corresponding to index 2; or The designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule, wherein the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with the smallest number in the at least two search space sets; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET with the smallest number among the at least two CORESETs corresponding to the at least two search space sets; or The designated control resource set pool index is a control resource set pool index corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

10. The method according to claim 9, characterized in that The method further comprises: A first media access layer control element is sent, where the first media access control layer control element is used to indicate at least one TCI state corresponding to at least one code point corresponding to a transmission configuration indication TCI field in the DCI.

11. The method according to claim 10, characterized in that The method further comprises: Second configuration information is sent, where the second configuration information is used to determine the control resource set pool index corresponding to each code point, and the configuration information of the PDSCH corresponding to the code point includes the configuration information of the PDSCH corresponding to the control resource set pool index corresponding to the code point.

12. The method according to any one of claims 9 to 11, characterized in that: The method further includes: sending RRC signaling, where the RRC signaling is used to determine configuration information of the PDSCH.

13. The method according to claim 12, characterized in that The RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index.

14. The method according to claim 9, characterized in that The PDSCH configuration information includes at least one of the following: dataScramblingIdentityPDSCH; rateMatchPattern; HARQ-ACK feedback configuration information.

15. The method according to claim 14, characterized in that The HARQ-ACK feedback configuration includes an independent feedback configuration or a joint feedback configuration, wherein: The independent feedback configuration is used to indicate that PDSCHs corresponding to different control resource set pool indexes correspond to different HARQ-ACK codebooks; The joint feedback configuration is used to indicate different bit positions of a HARQ-ACK codebook corresponding to PDSCHs corresponding to different control resource set pool indexes.

16. The method according to claim 9, characterized in that The at least two PDCCH candidate time-frequency resources corresponding to the at least two search space sets SS sets having a linked relationship and having the same PDCCH candidate time-frequency resource index value are used to send the same DCI.

17. A physical downlink shared channel (PDSCH) configuration device, characterized in that: The device comprises: a receiving unit, configured to receive first configuration information, where the first configuration information is used to indicate at least two search space sets SS sets having a linked relationship, and information of a control resource set CORESET corresponding to each search space set, wherein the control resource set pool indexes of the CORESETs corresponding to the at least two search space sets are different; a processing unit, configured to determine, in response to the first configuration information, configuration information of a physical downlink shared channel (PDSCH), wherein downlink control information (DCI) corresponding to the PDSCH is transmitted through at least two physical downlink control channel (PDCCH) candidate time-frequency resources in the at least two search space sets having a linked relationship; The PDSCH configuration information is the configuration information of the PDSCH corresponding to the specified control resource set pool index; wherein, in at least one code point corresponding to the TCI field in the DCI, each code point corresponds to a TCI state, and the designated control resource set pool index is 0 or 1; or, In at least one code point corresponding to the TCI field in the DCI, each code point corresponds to multiple TCI states, and the designated control resource set pool index is one of 0, 1, and 2; or, Separately configuring a control resource set pool index for at least two search space sets having a link relationship; in response to the absence of an independent search space set in a CORESET associated with the at least two search space sets having a link relationship, determining that the control resource set pool index of the CORESET associated with the at least two search space sets having a link relationship is 2, and the designated control resource set pool index is the control resource set pool index of the at least two search space sets having a link relationship corresponding to index 2; or The designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule, wherein the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with the smallest number in the at least two search space sets; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET with the smallest number among the at least two CORESETs corresponding to the at least two search space sets; or The designated control resource set pool index is a control resource set pool index corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

18. A physical downlink shared channel (PDSCH) configuration device, characterized in that: The device comprises: a sending unit, configured to send first configuration information, so that the terminal device determines configuration information of a physical downlink shared channel (PDSCH), wherein the first configuration information is used to indicate at least two search space sets (SS sets) having a linked relationship, and information of a control resource set (CORESET) corresponding to each search space set, wherein the control resource set pool indexes of the CORESET corresponding to the at least two search space sets are different, and wherein downlink control information (DCI) corresponding to the PDSCH is transmitted through at least two physical downlink control channel (PDCCH) candidate time-frequency resources in the at least two search space sets having a linked relationship; The PDSCH configuration information is the configuration information of the PDSCH corresponding to the specified control resource set pool index; wherein, in at least one code point corresponding to the TCI field in the DCI, each code point corresponds to a TCI state, and the designated control resource set pool index is 0 or 1; or, In at least one code point corresponding to the TCI field in the DCI, each code point corresponds to multiple TCI states, and the designated control resource set pool index is one of 0, 1, and 2; or, Separately configuring a control resource set pool index for at least two search space sets having a link relationship; in response to the absence of an independent search space set in a CORESET associated with the at least two search space sets having a link relationship, determining that the control resource set pool index of the CORESET associated with the at least two search space sets having a link relationship is 2, and the designated control resource set pool index is the control resource set pool index of the at least two search space sets having a link relationship corresponding to index 2; or The designated control resource set pool index is determined according to radio resource control RRC signaling or a default rule, wherein the RRC signaling includes configuration information of a PDSCH corresponding to at least one control resource set pool index; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET corresponding to the search space set with the smallest number in the at least two search space sets; or The designated control resource set pool index is the control resource set pool index corresponding to the CORESET with the smallest number among the at least two CORESETs corresponding to the at least two search space sets; or The designated control resource set pool index is a control resource set pool index corresponding to at least one code point corresponding to the transmission configuration indication TCI field in the DCI.

19. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 1 to 8.

20. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 9 to 16.

21. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 8.

22. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 9 to 16.

23. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 1 to 8 to be implemented.

24. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 9 to 16 to be implemented.

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