Physical downlink shared channel transmission method and communication device

Abstract

The present application provides a physical downlink shared channel transmission method and communication device, wherein the physical downlink shared channel transmission method includes: determining, based on time domain resource information of a physical downlink control channel, a first time domain range corresponding to an i-th physical downlink shared channel transmission, wherein the physical downlink control channel is used to schedule the physical downlink shared channel, and the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N; and receiving, based on the first time domain range, content corresponding to the i-th physical downlink shared channel transmission. Implementing embodiments of the present application can reduce data transmission latency.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a physical downlink shared channel transmission method and a communication device. Background Art

[0002] In order to meet the requirements of Ultra-Reliable and Low Latency Communications (URLLC) and improve the reliability of data transmission, the same data can be repeatedly transmitted in time-sharing, that is, the physical downlink shared channel (PDSCH) corresponding to the same data can be repeatedly transmitted in time-sharing. When receiving the PDSCH, the terminal device needs to determine the relevant parameters of the PDSCH transmission, such as the time domain resources corresponding to each PDSCH transmission, etc. Only after the terminal device determines the relevant parameters of each PDSCH transmission can it correctly receive the PDSCH. In the prior art, the relevant parameters of each PDSCH transmission are carried in the downlink control information (DCI) in the physical downlink control channel (PDCCH), that is, the network device first transmits the PDCCH and then transmits the PDSCH. There must be a certain time interval between the PDSCH and the PDCCH. This time interval allows the terminal device to receive the PDCCH, decode the PDCCH, obtain the transmission parameters in the DCI (such as the time domain resources corresponding to the PDSCH), and then receive it on the corresponding time domain resources. The existing technology requires that the terminal device must complete the PDCCH decoding and obtain the PDSCH time domain resources before sending the PDSCH, which will cause a large delay in data transmission. Summary of the Invention

[0003] The present application provides a physical downlink shared channel transmission method and apparatus, which can not only improve the reliability of data transmission but also reduce the delay of data transmission.

[0004] In a first aspect, an embodiment of the present application provides a method for transmitting a physical downlink shared channel, wherein the method can be executed by a terminal device or by a component of the terminal device (such as a processor, chip, or chip system). The method includes:

[0005] A first time domain range corresponding to the i-th physical downlink shared channel transmission is determined based on time domain resource information of a physical downlink control channel, where the physical downlink control channel is used to schedule the physical downlink shared channel. The physical downlink shared channel is repeatedly transmitted N times, and the i-th physical downlink shared channel transmission is one of the N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N. Optionally, the N repeated transmissions of the physical downlink shared channel correspond to the same or different redundancy versions (RV) of the same data.

[0006] According to the first time domain range, content corresponding to the i-th physical downlink shared channel transmission is received.

[0007] Correspondingly, an embodiment of the present application further provides a communication device, which may be a terminal device, a device in a terminal device, or a device capable of being used in conjunction with a terminal device. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

[0008] In one possible design, the structure of the terminal device may include a processing unit and a transceiver unit, the transceiver unit is used to perform the operation of receiving or sending information or messages in the process, and the processing unit is used to perform corresponding processing operations on the information or messages in the process;

[0009] A processing unit is configured to determine, based on time domain resource information of a physical downlink control channel, a first time domain range corresponding to an i-th physical downlink shared channel transmission, where the physical downlink control channel is used to schedule the physical downlink shared channel. The physical downlink shared channel is repeatedly transmitted N times, and the i-th physical downlink shared channel transmission is one of the N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N. Optionally, the N repeated transmissions of the physical downlink shared channel correspond to the same or different redundancy versions (RV) of the same data.

[0010] The transceiver unit is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to a first time domain range.

[0011] Optionally, the terminal device may further include a storage unit, which is coupled to the processing unit and the transceiver unit and stores necessary program instructions and data for the terminal device. The processing unit is used to call the instructions and data stored in the storage unit and perform corresponding operations.

[0012] Optionally, the transceiver unit may also be referred to as a communication unit, which is used to perform the operation of receiving or sending information or messages in the process. The transceiver unit may also be functionally divided into a receiving unit and a sending unit, wherein the receiving unit is used to perform the receiving operation and the sending unit is used to perform the sending operation.

[0013] As an example, the processing unit may be a processor, the transceiver unit may be a transceiver, the storage unit may be a memory, the transceiver is used to perform the operation of receiving or sending information or messages in the process, and the processor is used to perform corresponding processing operations on the information or messages in the process, wherein the transceiver may also be called a communication interface, which is used to perform the operation of receiving or sending information or messages in the process.

[0014] In one embodiment, the terminal device includes a processor and a transceiver;

[0015] a processor, configured to determine, based on time domain resource information of a physical downlink control channel, a first time domain range corresponding to an i-th physical downlink shared channel transmission, where the physical downlink control channel is used to schedule the physical downlink shared channel, and the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N;

[0016] The transceiver is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to the first time domain range.

[0017] Optionally, the above-mentioned transceiver can also be divided into a receiver and a transmitter according to function, wherein the receiver is used to perform a receiving action and the transmitter is used to perform a sending operation.

[0018] The above-mentioned devices can be respectively arranged on independent chips, or at least partially or completely on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be arranged on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, the digital baseband processor can be integrated with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip. Such a chip can be called a system on chip. Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the specific requirements of the product design. The embodiments of the present application do not limit the specific implementation form of the above-mentioned devices.

[0019] By implementing the embodiments of the present application, the physical downlink shared channel is repeatedly transmitted N times, which can improve the reliability of data transmission. In addition, by using the embodiments of the present application, the first time domain range corresponding to the i-th physical downlink shared channel transmission can be determined through the time domain resource information of the physical downlink control channel. Therefore, it is not necessary to parse the specific time domain resources of the physical downlink shared channel from the physical downlink control channel before sending the physical shared channel, which can reduce the delay of data transmission.

[0020] In one possible design, the transmission configuration indication-state TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission, and the i-th physical downlink control channel transmission is one of the M repeated transmissions of the physical downlink control channel, where M is an integer greater than or equal to 2.

[0021] If the number of repeated physical downlink shared channel transmissions, N, is greater than M, the physical downlink shared channel can be transmitted NM times using the TCI-states used in the first M transmissions. For example, if the number of repeated physical downlink shared channel transmissions, N, is 5, and the number of repeated physical downlink control channel transmissions, M, is 3, and the repeated physical downlink control channel transmissions use three TCI-states, namely (TCI-state#1, TCI-state#2, and TCI-state#3), then the first three repeated physical downlink shared channel transmissions use TCI-state#1, TCI-state#2, and TCI-state#3, respectively, and the last two repeated physical downlink shared channel transmissions use TCI-state#1 and TCI-state#2, respectively. Alternatively, if the number of repeated transmissions of the physical downlink shared channel N = 5, the number of repeated transmissions of the physical downlink control channel M = 3, and the repeated transmission of the physical downlink control channel uses two TCI-states, the two TCI-states are (TCI-state#1, TCI-state#2), then the first three repeated transmissions of the physical downlink shared channel use TCI-state#1, TCI-state#2 and TCI-state#1 respectively, and the last two physical downlink shared channel transmissions can use TCI-state#1 and TCI-state#2.

[0022] By implementing the embodiments of the present application, the TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission. Therefore, the TCI-state used for the physical downlink shared channel transmission does not need to be carried in the PDCCH. The terminal device can use the TCI-state used for the i-th physical downlink control channel transmission to receive the i-th physical downlink shared channel transmission, thereby reducing data transmission delay.

[0023] In one possible design, the K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states activated by a control resource set corresponding to the physical downlink control channel; or,

[0024] The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states activated by the K control resource sets corresponding to the physical downlink control channel, where one control resource set corresponds to one activated TCI-state.

[0025] K is an integer greater than or equal to 1. K may be greater than M, i.e., M TCI-states are selected from the K TCI-states for M repeated transmissions of the physical downlink control channel. Alternatively, K may be equal to M, i.e., one TCI-state corresponds to one physical downlink control channel transmission. Alternatively, K may be less than M, in which case the K TCI-states may be reused for M physical downlink control channel transmissions.

[0026] By implementing the embodiment of the present application, K TCI-states can be determined through the control resource set corresponding to the physical downlink control channel, and the method for determining the TCI-state is simple.

[0027] In one possible design, the i-th physical downlink control channel transmission and the i-th physical downlink shared channel transmission can be transmitted together in pairs, and the first time domain range corresponding to the i-th physical downlink shared channel can be determined by the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the i+1-th physical downlink control channel transmission.

[0028] Optionally, the first time domain range corresponding to the i-th physical downlink shared channel transmission can be determined based on the time domain resource information of the i-th physical downlink control channel transmission and the time domain resource information of the i+1-th physical downlink control channel transmission, that is, the first time domain range is determined by the starting time domain symbol and the ending time domain symbol, or the first time domain range is determined by the starting time domain symbol, the ending time domain symbol and the number of time domain symbols included in the first time domain range; or, the first time domain range corresponding to the i-th physical downlink shared channel transmission can be determined based on the time domain resource information of the i-th physical downlink control channel transmission, that is, the first time domain range is determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range; or, the first time domain range corresponding to the i-th physical downlink shared channel transmission can be determined based on the time domain resource information of the i+1-th physical downlink control channel transmission, that is, the first time domain range is determined by the ending time domain symbol and the number of time domain symbols included in the first time domain range.

[0029] Among them, the starting time domain symbol of the first time domain range corresponding to the above-mentioned i-th physical downlink shared channel transmission may be the first time domain symbol of the time domain resource of the i-th physical downlink control channel transmission, or the starting time domain symbol of the first time domain range corresponding to the i-th physical downlink shared channel transmission may be the last time domain symbol of the time domain resource of the i-th physical downlink control channel transmission, or the starting time domain symbol of the first time domain range corresponding to the i-th physical downlink shared channel transmission may be the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the i-th physical downlink control channel transmission shifted backward by X time domain symbols, where X is an integer greater than or equal to 1. The number X of offset time domain symbols may be specified by the protocol by default, or may be indicated to the terminal device by the network device through RRC signaling, MAC CE signaling, or DCI information.

[0030] Among them, the end time domain symbol of the first time domain range corresponding to the above-mentioned i-th physical downlink shared channel transmission can be the symbol corresponding to the first time domain symbol of the time domain resource of the i+1-th physical downlink control channel transmission shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1. The number of offset time domain symbols Y can be specified by the protocol by default, or it can be indicated to the terminal device by the network device through RRC signaling, MAC CE signaling, or DCI information.

[0031] The number of time domain symbols included in the above-mentioned first time domain range may be specified by the protocol by default, or indicated to the terminal device by the network device through RRC signaling, MAC CE signaling or DCI information, or reported to the network device by the terminal device through the capability reporting process.

[0032] Optionally, if the first time domain range corresponding to the i-th physical downlink shared channel transmission is jointly determined by the starting time domain symbol, the ending time domain symbol, and the number of time domain symbols contained in the first time domain range, then if the determined number of time domain symbols is greater than the number of symbols corresponding from the starting time domain symbol to the ending time domain symbol, the time domain range determined by the starting time domain symbol and the ending time domain symbol is used as the first time domain range corresponding to the i-th physical downlink shared channel transmission. If the determined number of time domain symbols is less than or equal to the number of time domain symbols corresponding from the starting time domain symbol to the ending time domain symbol, the time domain range corresponding to the starting time domain symbol and the determined number of time domain symbols is used as the first time domain range corresponding to the i-th physical downlink shared channel transmission. That is, a smaller time domain range is taken as the time domain range corresponding to the i-th physical downlink shared channel transmission.

[0033] In one possible design, the N repeated transmissions of the physical downlink shared channel may be after all physical downlink control channels are transmitted. The physical downlink control channel may not be transmitted repeatedly, that is, it is transmitted once, or it may be transmitted repeatedly, with the number of repeated transmissions being M.

[0034] The first time domain range is determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range;

[0035] If i is equal to 1, the starting time domain symbol is the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the Mth physical downlink control channel transmission offset by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the time slot next to the time slot in which the Mth physical downlink control channel transmission occurs. It will be understood that the starting time domain symbol may also be other time domain symbols of the next time slot, for example, the second time domain symbol or the third time domain symbol, etc. X is an integer greater than or equal to 1; wherein the Mth physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel.

[0036] or,

[0037] If i is greater than 1, the starting time domain symbol is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the i-1th physical downlink shared channel transmission, and is the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

[0038] By implementing the embodiments of the present application, the time domain range of the physical downlink shared channel transmission is determined by the last transmitted physical downlink control channel. The physical downlink shared channel can be transmitted before the demodulation and decoding of the physical downlink control channel is completed, thereby reducing the data transmission delay while ensuring the reliability of data transmission.

[0039] In one possible design, receiving, according to the first time domain range, an i-th physical downlink shared channel transmission includes:

[0040] Determine the first time domain resources corresponding to the i-th physical downlink shared channel transmission from the first time domain range, and obtain the content corresponding to the i-th physical downlink shared channel transmission from the first time domain resources, where the first time domain resources are a subset or the entire set of the first time domain range.

[0041] Optionally, if the first time domain resources are the entire set of the first time domain range, the specific time domain resources used for the i-th physical downlink shared channel transmission are the determined time domain range.

[0042] By implementing this embodiment, the specific time domain resources used for the i-th physical downlink shared channel transmission can be determined from the first time domain range, thereby facilitating reception of the i-th physical downlink shared channel transmission.

[0043] In one possible design, if the first time domain resource is a subset of the first time domain range.

[0044] The first time domain resource is determined by a starting time domain symbol of the first time domain resource and the number of time domain symbols included in the first time domain resource. The number of time domain symbols included in the first time domain resource is obtained according to a physical downlink control channel.

[0045] In one possible design, the starting time domain symbol of the first time domain resource is the starting time domain symbol of the first time domain range; or,

[0046] is calculated based on the starting time domain symbol of the first physical downlink shared channel transmission; or,

[0047] is obtained according to the first symbol interval and the starting time domain symbol of the i-th physical downlink control channel transmission, where the first symbol interval is the symbol interval between the starting time domain symbol of the first physical downlink control channel transmission and the starting time domain symbol of the first physical downlink shared channel transmission; or

[0048] is obtained according to the second symbol interval and the end time domain symbol of the i-th physical downlink control channel transmission, where the second symbol interval is the symbol interval between the start time domain symbol of the first physical downlink control channel transmission and the end time domain symbol of the first physical downlink shared channel transmission;

[0049] The starting time domain symbol of the first physical downlink shared channel transmission is obtained from the physical downlink control channel.

[0050] In a second aspect, an embodiment of the present application provides a method for transmitting a physical downlink shared channel, wherein the method can be executed by a network device or by a component of the network device (such as a processor, chip, or chip system). The method includes:

[0051] The network device uses a first time domain resource to perform the i-th physical downlink shared channel transmission. The first time domain resource can be a subset or a full set of a first time domain range corresponding to the i-th physical downlink shared channel transmission. The first time domain range is determined by the time domain resource information of the physical downlink control channel, wherein the physical downlink control channel is used to schedule the physical downlink shared channel, and the i-th physical downlink shared channel transmission is one of N repeated transmissions, where N is an integer greater than or equal to 2.

[0052] Correspondingly, an embodiment of the present application further provides a communication device, which may be a network device, a device within a network device, or a device capable of being used in conjunction with a network device. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

[0053] In one possible design, the network device may include a processing unit and a transceiver unit. The transceiver unit is used to support communication between the network device and other devices, which may be terminal devices.

[0054] In one embodiment, the network device includes a transceiver unit;

[0055] A transceiver unit is configured to use a first time domain resource to perform an i-th physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the i-th physical downlink shared channel transmission, the first time domain range being determined by time domain resource information of a physical downlink control channel, the physical downlink control channel being used to schedule the physical downlink shared channel, the i-th physical downlink shared channel transmission being one of N repeated transmissions, where N is an integer greater than or equal to 2.

[0056] The network device may further include a storage unit, which is coupled to the processing unit and the transceiver unit and stores necessary program instructions and data for the network device.

[0057] The transceiver unit may also be referred to as a communication unit, and is used to perform the operation of receiving or sending information or messages in the process. Optionally, the transceiver unit may be further divided into a receiving unit and a sending unit according to their functions, wherein the receiving unit is used to perform the receiving operation and the sending unit is used to perform the sending operation.

[0058] As an example, the processing unit may be a processor, the transceiver unit may be a transceiver, and the storage unit may be a memory. The transceiver is used to perform the operation of receiving or sending information or messages in the process, and the processor is used to perform corresponding processing operations on the information or messages in the process. The transceiver may also be called a communication interface, which is used to perform the operation of receiving or sending information or messages in the process.

[0059] In one embodiment, the network device includes a transceiver;

[0060] A transceiver configured to use a first time domain resource to perform an i-th physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the i-th physical downlink shared channel transmission, the first time domain range being determined by time domain resource information of a physical downlink control channel, the physical downlink control channel being used to schedule the physical downlink shared channel, the i-th physical downlink shared channel transmission being one of N repeated transmissions, where N is an integer greater than or equal to 2.

[0061] Optionally, the above-mentioned transceiver can also be divided into a receiver and a transmitter according to function, wherein the receiver is used to perform a receiving action and the transmitter is used to perform a sending operation.

[0062] By implementing the embodiments of the present application, when the network device performs the i-th physical downlink shared channel transmission, it determines the first time domain range corresponding to the i-th physical downlink shared channel transmission through the time domain resource information of the physical downlink control channel, and then performs the i-th physical downlink shared channel transmission using the first time domain resource within the first time domain range. It is not necessary to wait until the terminal device obtains the physical downlink shared channel transmission parameters from the physical downlink control channel before transmitting the physical downlink shared channel, thereby reducing data transmission delay.

[0063] In one possible design, the TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission, and the i-th physical downlink control channel transmission is one of the M repeated transmissions of the physical downlink control channel, where M is an integer greater than or equal to 2, and M is equal to N.

[0064] In one possible design, the K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states associated with a control resource set corresponding to the physical downlink control channel; or

[0065] The K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states associated with the K control resource sets corresponding to the physical downlink control channel, where one control resource set is used to associate with one TCI-state.

[0066] Here, K is greater than or equal to 1.

[0067] In one possible design, the time domain resource information of the physical downlink control channel includes the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the (i+1)-th physical downlink control channel transmission.

[0068] In one possible design, the first time domain range is determined by a start time domain symbol and an end time domain symbol; or,

[0069] The first time domain range is determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range; or,

[0070] The first time domain range is determined by the cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or,

[0071] The first time domain range is determined by the starting time domain symbol, the ending time domain symbol and the number of time domain symbols included in the first time domain range;

[0072] The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1.

[0073] The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission that is shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

[0074] In one possible design, the first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range;

[0075] If i is equal to 1, the starting time domain symbol is the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the M-th physical downlink control channel transmission shifted backward by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the time slot next to the time slot in which the M-th physical downlink control channel transmission is located, where X is an integer greater than or equal to 1; wherein the M-th physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel;

[0076] or,

[0077] If i is greater than 1, the starting time domain symbol is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the (i-1)th physical downlink shared channel transmission, and is the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

[0078] In a third aspect, an embodiment of the present application provides a physical downlink shared channel transmission method, wherein the method can be executed by a terminal device or by a component of the terminal device (such as a processor, chip, or chip system). The method includes:

[0079] Determine, based on the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the i+1-th physical downlink control channel transmission, a first time domain range corresponding to the i-th physical downlink shared channel transmission, the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, the i-th physical downlink control channel transmission is one of M repeated transmissions of the physical downlink control channel, the i+1-th physical downlink control channel transmission is the next transmission after the i-th physical downlink control channel transmission, and the physical downlink control channel is used to schedule the physical downlink shared channel. Wherein, N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N;

[0080] According to the first time domain range, content corresponding to the i-th physical downlink shared channel transmission is received.

[0081] Correspondingly, an embodiment of the present application further provides a communication device, which may be a terminal device, a device in a terminal device, or a device capable of being used in conjunction with a terminal device. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

[0082] In one possible design, the structure of the terminal device may include a processing unit and a transceiver unit, the transceiver unit is used to perform the operation of receiving or sending information or messages in the process, and the processing unit is used to perform corresponding processing operations on the information or messages in the process;

[0083] A processing unit, configured to determine, based on time domain resource information of an i-th physical downlink control channel transmission and / or time domain resource information of an i+1-th physical downlink control channel transmission, a first time domain range corresponding to an i-th physical downlink shared channel transmission, wherein the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, the i-th physical downlink control channel transmission is one of M repeated transmissions of the physical downlink control channel, the i+1-th physical downlink control channel transmission is the next transmission after the i-th physical downlink control channel transmission, and the physical downlink control channel is used to schedule the physical downlink shared channel. Wherein, N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N.

[0084] The transceiver unit is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to a first time domain range.

[0085] Optionally, the terminal device may further include a storage unit, which is coupled to the processing unit and the transceiver unit and stores necessary program instructions and data for the terminal device. The processing unit is used to call the instructions and data stored in the storage unit and perform corresponding operations.

[0086] Optionally, the transceiver unit may also be referred to as a communication unit, which is used to perform the operation of receiving or sending information or messages in the process. The transceiver unit may also be functionally divided into a receiving unit and a sending unit, wherein the receiving unit is used to perform the receiving operation and the sending unit is used to perform the sending operation.

[0087] As an example, the processing unit may be a processor, the transceiver unit may be a transceiver, the storage unit may be a memory, the transceiver is used to perform the operation of receiving or sending information or messages in the process, and the processor is used to perform corresponding processing operations on the information or messages in the process, wherein the transceiver may also be called a communication interface, which is used to perform the operation of receiving or sending information or messages in the process.

[0088] In one embodiment, the terminal device includes a processor and a transceiver;

[0089] The processor is configured to determine, based on the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the i+1-th physical downlink control channel transmission, a first time domain range corresponding to the i-th physical downlink shared channel transmission, the i-th physical downlink shared channel transmission being one of N repeated transmissions of the physical downlink shared channel, the i-th physical downlink control channel transmission being one of M repeated transmissions of the physical downlink control channel, the i+1-th physical downlink control channel transmission being the next transmission after the i-th physical downlink control channel transmission, and the physical downlink control channel being used to schedule the physical downlink shared channel. Wherein, N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N.

[0090] The transceiver is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to the first time domain range.

[0091] Optionally, the above-mentioned transceiver can also be divided into a receiver and a transmitter according to function, wherein the receiver is used to perform a receiving action and the transmitter is used to perform a sending operation.

[0092] The above-mentioned devices can be respectively arranged on independent chips, or at least partially or completely on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be arranged on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, the digital baseband processor can be integrated with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip. Such a chip can be called a system on chip. Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the specific requirements of the product design. The embodiments of the present application do not limit the specific implementation form of the above-mentioned devices.

[0093] Through the embodiments of the present application, the first time domain range corresponding to the i-th physical downlink shared channel transmission can be determined through the time domain resource information transmitted by the i-th physical downlink control channel and / or the time domain resource information transmitted by the i+1-th physical downlink control channel, and there is no need to wait until the specific time domain resources of the physical downlink shared channel are parsed from the physical downlink control channel before transmitting the physical downlink shared channel, thereby reducing data transmission delay.

[0094] In one possible design, the TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission.

[0095] In one possible design, the K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states activated by a control resource set corresponding to the physical downlink control channel; or,

[0096] The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states activated by the K control resource sets corresponding to the physical downlink control channel, where one control resource set corresponds to one activated TCI-state.

[0097] In one possible design, the first time domain range is determined by a start time domain symbol and an end time domain symbol; or,

[0098] The first time domain range is determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range; or,

[0099] The first time domain range is determined by the cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or,

[0100] The first time domain range is determined by the starting time domain symbol, the ending time domain symbol and the number of time domain symbols included in the first time domain range;

[0101] The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1.

[0102] The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission that is shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

[0103] In one possible design, receiving content corresponding to an i-th physical downlink shared channel transmission according to the first time domain range includes:

[0104] Determine the first time domain resources corresponding to the i-th physical downlink shared channel transmission from the first time domain range, and obtain the content corresponding to the i-th physical downlink shared channel transmission from the first time domain resources, where the first time domain resources are a subset or the entire set of the first time domain range.

[0105] In one possible design, if the first time domain resource is a subset of the first time domain range,

[0106] The first time domain resource is determined by a starting time domain symbol of the first time domain resource and the number of time domain symbols included in the first time domain resource. The number of time domain symbols included in the first time domain resource is obtained according to a physical downlink control channel.

[0107] In one possible design, the starting time domain symbol of the first time domain resource is the starting time domain symbol of the first time domain range; or,

[0108] is calculated based on the starting time domain symbol of the first physical downlink control channel transmission; or,

[0109] is obtained according to the first symbol interval and the starting time domain symbol of the i-th physical downlink control channel transmission, where the first symbol interval is the symbol interval between the starting time domain symbol of the first physical downlink control channel transmission and the starting time domain symbol of the first physical downlink shared channel transmission; or

[0110] is obtained according to the second symbol interval and the end time domain symbol of the i-th physical downlink control channel transmission, where the second symbol interval is the symbol interval between the start time domain symbol of the first physical downlink control channel transmission and the end time domain symbol of the first physical downlink shared channel transmission;

[0111] The starting time domain symbol of the first physical downlink shared channel transmission is obtained from the physical downlink control channel.

[0112] In a fourth aspect, an embodiment of the present application provides a method for transmitting a physical downlink shared channel, wherein the method can be executed by a network device or by a component of the network device (such as a processor, chip, or chip system). The method includes:

[0113] A first time domain resource is used for the i-th physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the i-th physical downlink control channel transmission, and the first time domain range is determined by time domain resource information of the i-th physical downlink control channel transmission and / or time domain resource information of the (i+1)-th physical downlink control channel transmission. The i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, the i-th physical downlink control channel transmission is one of M repeated transmissions of the physical downlink control channel, the (i+1)-th physical downlink control channel transmission is the next transmission after the i-th physical downlink control channel transmission, and the physical downlink control channel is used to schedule the physical downlink shared channel. N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N.

[0114] Correspondingly, an embodiment of the present application further provides a communication device, which may be a network device, a device within a network device, or a device capable of being used in conjunction with a network device. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

[0115] In one possible design, the network device may include a processing unit and a transceiver unit. The transceiver unit is used to support communication between the network device and other devices, which may be terminal devices.

[0116] In one embodiment, the network device includes a transceiver unit;

[0117] A transceiver unit is configured to use a first time domain resource to perform an i-th physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the i-th physical downlink control channel transmission, and the first time domain range is determined by time domain resource information of the i-th physical downlink control channel transmission and / or time domain resource information of the (i+1)-th physical downlink control channel transmission, wherein the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, the i-th physical downlink control channel transmission is one of M repeated transmissions of the physical downlink control channel, the (i+1)-th physical downlink control channel transmission is the next transmission after the i-th physical downlink control channel transmission, and the physical downlink control channel is used to schedule the physical downlink shared channel. N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N.

[0118] The network device may further include a storage unit, which is coupled to the processing unit and the transceiver unit and stores necessary program instructions and data for the network device.

[0119] The transceiver unit may also be referred to as a communication unit, and is used to perform the operation of receiving or sending information or messages in the process. Optionally, the transceiver unit may be further divided into a receiving unit and a sending unit according to their functions, wherein the receiving unit is used to perform the receiving operation and the sending unit is used to perform the sending operation.

[0120] As an example, the processing unit may be a processor, the transceiver unit may be a transceiver, and the storage unit may be a memory. The transceiver is used to perform the operation of receiving or sending information or messages in the process, and the processor is used to perform corresponding processing operations on the information or messages in the process. The transceiver may also be called a communication interface, which is used to perform the operation of receiving or sending information or messages in the process.

[0121] In one embodiment, the network device includes a transceiver;

[0122] A transceiver configured to use first time domain resources to perform an i-th physical downlink shared channel transmission, where the first time domain resources are a subset or the entire set of a first time domain range corresponding to the i-th physical downlink control channel transmission, and the first time domain range is determined by time domain resource information of the i-th physical downlink control channel transmission and / or time domain resource information of the (i+1)-th physical downlink control channel transmission, wherein the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, the i-th physical downlink control channel transmission is one of M repeated transmissions of the physical downlink control channel, the (i+1)-th physical downlink control channel transmission is the next transmission after the i-th physical downlink control channel transmission, and the physical downlink control channel is used to schedule the physical downlink shared channel. N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N.

[0123] Optionally, the above-mentioned transceiver can also be divided into a receiver and a transmitter according to function, wherein the receiver is used to perform a receiving action and the transmitter is used to perform a sending operation.

[0124] In one possible design, the TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission.

[0125] In one possible design, the K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states activated by a control resource set corresponding to the physical downlink control channel; or,

[0126] The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states activated by the K control resource sets corresponding to the physical downlink control channel, where one control resource set corresponds to one activated TCI-state.

[0127] In one possible design, the first time domain range is determined by a start time domain symbol and an end time domain symbol; or,

[0128] The first time domain range is determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range; or,

[0129] The first time domain range is determined by the cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or,

[0130] The first time domain range is determined by the starting time domain symbol, the ending time domain symbol and the number of time domain symbols included in the first time domain range;

[0131] The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1.

[0132] The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission that is shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

[0133] In a fifth aspect, an embodiment of the present application provides a method for transmitting a physical downlink shared channel, wherein the method can be executed by a terminal device or by a component of the terminal device (such as a processor, chip, or chip system). The method includes:

[0134] Determining, according to the time domain resource information of the Mth physical downlink control channel transmission, a first time domain range corresponding to the first physical downlink shared channel transmission, where the Mth physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel, and the first physical downlink shared channel transmission is the first of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2;

[0135] According to the first time domain range, content corresponding to the first physical downlink shared channel transmission is received.

[0136] Correspondingly, an embodiment of the present application further provides a communication device, which may be a terminal device, a device in a terminal device, or a device capable of being used in conjunction with a terminal device. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

[0137] In one possible design, the structure of the terminal device may include a processing unit and a transceiver unit, the transceiver unit is used to perform the operation of receiving or sending information or messages in the process, and the processing unit is used to perform corresponding processing operations on the information or messages in the process;

[0138] a processing unit, configured to determine, based on time domain resource information of an Mth physical downlink control channel transmission, a first time domain range corresponding to a first physical downlink shared channel transmission, where the Mth physical downlink control channel transmission is the last of M repeated transmissions of the physical downlink control channel, and the first physical downlink shared channel transmission is the first of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2;

[0139] The transceiver unit is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to a first time domain range.

[0140] Optionally, the terminal device may further include a storage unit, which is coupled to the processing unit and the transceiver unit and stores necessary program instructions and data for the terminal device. The processing unit is used to call the instructions and data stored in the storage unit and perform corresponding operations.

[0141] Optionally, the transceiver unit may also be referred to as a communication unit, which is used to perform the operation of receiving or sending information or messages in the process. The transceiver unit may also be functionally divided into a receiving unit and a sending unit, wherein the receiving unit is used to perform the receiving operation and the sending unit is used to perform the sending operation.

[0142] As an example, the processing unit may be a processor, the transceiver unit may be a transceiver, the storage unit may be a memory, the transceiver is used to perform the operation of receiving or sending information or messages in the process, and the processor is used to perform corresponding processing operations on the information or messages in the process, wherein the transceiver may also be called a communication interface, which is used to perform the operation of receiving or sending information or messages in the process.

[0143] In one embodiment, the terminal device includes a processor and a transceiver;

[0144] a processor, configured to determine, based on time domain resource information of an Mth physical downlink control channel transmission, a first time domain range corresponding to a first physical downlink shared channel transmission, where the Mth physical downlink control channel transmission is the last of M repeated transmissions of the physical downlink control channel, and the first physical downlink shared channel transmission is the first of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2;

[0145] The transceiver is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to the first time domain range.

[0146] Optionally, the above-mentioned transceiver can also be divided into a receiver and a transmitter according to function, wherein the receiver is used to perform a receiving action and the transmitter is used to perform a sending operation.

[0147] The above-mentioned devices can be respectively arranged on independent chips, or at least partially or completely on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be arranged on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, the digital baseband processor can be integrated with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip. Such a chip can be called a system on chip. Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the specific requirements of the product design. The embodiments of the present application do not limit the specific implementation form of the above-mentioned devices.

[0148] Through the embodiments of the present application, the first time domain range corresponding to the first physical downlink shared channel transmission can be determined by the time domain resource information transmitted by the Mth physical downlink control channel, and there is no need to wait until the specific time domain resources of the physical downlink shared channel are parsed from the physical downlink control channel before transmitting the physical downlink shared channel, thereby reducing data transmission delay.

[0149] In one possible design, a second time domain range corresponding to the i-th physical downlink shared channel transmission is determined based on the time domain range corresponding to the i-1-th physical downlink shared channel transmission, where i is an integer greater than 1 and less than N.

[0150] According to the second time domain range, content corresponding to the i-th physical downlink shared channel is received.

[0151] The second time domain range obtained is different for different values ​​of i, that is, there is a one-to-one correspondence between a value of i and the second time domain range.

[0152] In one possible design, the TCI-state used for the first physical downlink shared channel transmission is the same as the TCI-state used for the first physical downlink control channel transmission.

[0153] The TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission.

[0154] In one possible design, the K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states activated by a control resource set corresponding to the physical downlink control channel; or,

[0155] The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states activated by the K control resource sets corresponding to the physical downlink control channel, where one control resource set corresponds to one activated TCI-state.

[0156] In one possible design, the first time domain range is determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range; the starting time domain symbol of the first time domain range is the first time domain symbol of the time domain resource of the Mth physical downlink control channel transmission or the symbol corresponding to the last time domain symbol offset backward by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the next time slot of the time slot where the Mth physical downlink control channel transmission is located. Of course, it can be understood that it can also be any other time domain symbol of the next time slot, and X is an integer greater than or equal to 1.

[0157] The second time domain range is determined by the starting time domain symbol and the number of time domain symbols contained in the second time domain range; the starting time domain symbol of the second time domain range is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the i-1th physical downlink shared channel transmission, and the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

[0158] In one possible design, receiving content corresponding to a first physical downlink shared channel transmission according to the first time domain range includes:

[0159] Determine the first time domain resources corresponding to the first physical downlink shared channel transmission from the first time domain range, and obtain the content corresponding to the first physical downlink shared channel transmission from the first time domain resources, where the first time domain resources are a subset or the entire set of the first time domain range.

[0160] In one possible design, if the first time domain resource is a subset of the first time domain range, the first time domain resource is determined by the starting time domain symbol of the first time domain resource and the number of time domain symbols contained in the first time domain resource, and the number of time domain symbols contained in the first time domain resource is obtained according to the physical downlink control channel.

[0161] In one possible design, the starting time domain symbol of the first time domain resource is the starting time domain symbol of the first time domain range, or is obtained from a physical downlink control channel.

[0162] In one possible design, receiving content corresponding to the i-th physical downlink shared channel transmission according to the second time domain range includes:

[0163] Determine the second time domain resources corresponding to the i-th physical downlink shared channel transmission from the second time domain range, and obtain the content corresponding to the i-th physical downlink shared channel transmission from the second time domain resources, where the second time domain resources are a subset or the entire set of the second time domain range.

[0164] In one possible design, the second time domain resource is a subset of the second time domain range, and the first time domain resource is determined by the starting time domain symbol of the first time domain resource and the number of time domain symbols contained in the first time domain resource, and the number of time domain symbols contained in the first time domain resource is obtained according to the physical downlink control channel.

[0165] In one possible design, the starting time domain symbol of the second time domain resource is the starting time domain symbol of the second time domain range, or is calculated based on the starting time domain symbol of the first time domain resource corresponding to the first physical downlink shared channel transmission.

[0166] The starting time domain symbol of the first time domain resource corresponding to the first physical downlink shared channel transmission is obtained from the physical downlink control channel.

[0167] In a sixth aspect, an embodiment of the present application provides a method for transmitting a physical downlink shared channel, wherein the method can be executed by a network device or by a component of the network device (such as a processor, chip, or chip system). The method includes:

[0168] A first time domain resource is used for the first physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the first physical downlink shared channel transmission. The first time domain range is determined by the time domain resource information of the Mth physical downlink control channel transmission. The Mth physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel. The first physical downlink shared channel transmission is the first of the N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2.

[0169] Correspondingly, an embodiment of the present application further provides a communication device, which may be a network device, a device within a network device, or a device capable of being used in conjunction with a network device. The function may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

[0170] In one possible design, the network device may include a processing unit and a transceiver unit. The transceiver unit is used to support communication between the network device and other devices, which may be terminal devices.

[0171] In one embodiment, the network device includes a transceiver unit;

[0172] A transceiver unit is configured to use a first time domain resource for a first physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the first physical downlink shared channel transmission, and the first time domain range is determined by the time domain resource information of the Mth physical downlink control channel transmission, where the Mth physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel, and the first physical downlink shared channel transmission is the first of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2.

[0173] The network device may further include a storage unit, which is coupled to the processing unit and the transceiver unit and stores necessary program instructions and data for the network device.

[0174] The transceiver unit may also be referred to as a communication unit, and is used to perform the operation of receiving or sending information or messages in the process. Optionally, the transceiver unit may be further divided into a receiving unit and a sending unit according to their functions, wherein the receiving unit is used to perform the receiving operation and the sending unit is used to perform the sending operation.

[0175] As an example, the processing unit may be a processor, the transceiver unit may be a transceiver, and the storage unit may be a memory. The transceiver is used to perform the operation of receiving or sending information or messages in the process, and the processor is used to perform corresponding processing operations on the information or messages in the process. The transceiver may also be called a communication interface, which is used to perform the operation of receiving or sending information or messages in the process.

[0176] In one embodiment, the network device includes a transceiver;

[0177] A transceiver is configured to use a first time domain resource for a first physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the first physical downlink shared channel transmission, the first time domain range being determined by the time domain resource information of the Mth physical downlink control channel transmission, the Mth physical downlink control channel transmission being the last of the M repeated transmissions of the physical downlink control channel, the first physical downlink shared channel transmission being the first of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2.

[0178] Optionally, the above-mentioned transceiver can also be divided into a receiver and a transmitter according to function, wherein the receiver is used to perform a receiving action and the transmitter is used to perform a sending operation.

[0179] By adopting the embodiment of the present application, the first time domain range corresponding to the first physical downlink shared channel transmission can be determined through the time domain resource information transmitted by the Mth physical downlink control channel, and there is no need to wait until the specific time domain resources of the physical downlink shared channel are parsed from the physical downlink control channel before transmitting the physical downlink shared channel, thereby reducing data transmission delay.

[0180] In one possible design, a second time domain resource is used for the i-th physical downlink shared channel transmission, and the second time domain resource is a subset or a full set of a second time domain range corresponding to the i-th physical downlink shared channel transmission. The second time domain range is determined based on the time domain range corresponding to the i-1-th physical downlink shared channel transmission, and i is an integer greater than or equal to 2.

[0181] A seventh aspect of an embodiment of the present application provides a processor for executing the method provided in the first aspect, the third aspect, or the fifth aspect. The process of sending information or data and receiving information or data can be understood as the process of the processor outputting the above information or data, and the process of the processor receiving the above information or data input. Specifically, when outputting information or data, the processor outputs the above information or data to the transceiver so that the transceiver transmits it. Furthermore, after the information or data is output by the processor, it may undergo other processing before reaching the transceiver. Similarly, when the processor receives the above information or data input, the transceiver receives the above information or data and inputs it into the processor. Furthermore, after the transceiver receives the above information or data, the above information or data may undergo other processing before being input into the processor.

[0182] Based on the above principles, for example, the receiving of the physical shared channel mentioned in the method provided in the first aspect, the third aspect, or the fifth aspect can be understood as the transceiver inputting the received physical shared channel into the processor.

[0183] In this way, unless otherwise specified, or unless otherwise inconsistent with the actual function or internal logic in the relevant description, the operations such as transmission, sending and receiving involved in the processor can be more generally understood as processor output, reception, input and other operations, rather than the transmission, sending and receiving operations performed directly by the RF circuit and antenna.

[0184] In a specific implementation, the processor may be a processor specifically configured to execute the methods, or may be a processor that executes computer instructions in a memory to execute the methods, such as a general-purpose processor. The memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated with the processor on the same chip or disposed on separate chips. The embodiments of the present application do not limit the type of memory or the configuration of the memory and the processor.

[0185] An eighth aspect of the present application provides a chip system, which includes a processor and an interface. The chip system can be deployed in a terminal device.

[0186] In one possible design, the processor is configured to determine a first time domain resource range corresponding to the i-th physical shared channel transmission, and the interface is configured to receive a signal within the time domain resource range. The processor is configured to determine the first time domain resource corresponding to the i-th physical shared channel transmission and process the signal on the first time domain resource. The interface is further configured to receive a physical control channel, and the processor is further configured to decode the physical control channel to obtain transmission parameters of the physical shared channel.

[0187] In one possible design, the processor is configured to call and execute a computer program stored in the memory from the memory to support the terminal device in implementing the functions described in the first, third, or fifth aspects, such as determining the first time domain resource range corresponding to the i-th physical shared channel transmission and determining the first time domain resource corresponding to the i-th physical shared channel transmission. In one possible design, the chip system also includes a memory configured to store program instructions and data necessary for the terminal device. The chip system may consist of a chip or may include a chip and other discrete components.

[0188] A ninth aspect of the embodiments of the present application provides a computer-readable storage medium for storing computer software instructions for the above-mentioned terminal device, which includes a program for executing the method described in the first aspect, the third aspect, or the fifth aspect.

[0189] A tenth aspect of the embodiments of the present application provides a computer program product comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method described in the first, third or fifth aspects above.

[0190] In an eleventh aspect of the embodiments of the present application, there is provided a computer program comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method described in the first, third or fifth aspects above.

[0191] A twelfth aspect of the embodiment of the present application provides a processor for executing the method provided in the second aspect, the fourth aspect, or the sixth aspect above. In the process of executing the method provided in the second aspect, the fourth aspect, or the sixth aspect above, the process of sending information or data and receiving information or data can be understood as the process of the processor outputting the above information or data, and the process of the processor receiving the above information or data input. Specifically, when outputting the above information or data, the processor outputs the above information or data to the transceiver so that the transceiver can transmit it. Furthermore, after the information or data is output by the processor, it may undergo other processing before reaching the transceiver. Similarly, when the processor receives the above information or data input, the transceiver receives the above information or data and inputs it into the processor. Furthermore, after the transceiver receives the above information or data, the above information or data may undergo other processing before entering the processor.

[0192] In a thirteenth aspect, the present application provides a chip system, comprising a processor and an interface. The processor is configured to call and execute a computer program stored in a memory to support a network device in implementing the functions described in the second, fourth, or sixth aspects. In one possible design, the chip system further comprises a memory configured to store program instructions and data necessary for the network device. The chip system may consist of a chip or may include a chip and other discrete components.

[0193] A fourteenth aspect of an embodiment of the present application provides a computer-readable storage medium for storing computer software instructions used for the above-mentioned network device, which includes a program for executing the method described in the second aspect, fourth aspect or sixth aspect.

[0194] A fifteenth aspect of the embodiments of the present application provides a computer program product comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method described in the second, fourth or sixth aspects above.

[0195] A sixteenth aspect of the embodiments of the present application provides a computer program including a computer program or instructions, which, when executed on a computer, enables the computer to execute the method described in the second, fourth or sixth aspects above.

[0196] A seventeenth aspect of an embodiment of the present application provides a system comprising a terminal device and a network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0197] Figure 1 A schematic diagram of the structure of a MAC CE provided in an embodiment of the present application;

[0198] Figure 2A system architecture diagram provided for an embodiment of the present application;

[0199] Figure 3 An interactive diagram of a physical downlink shared channel transmission method provided in an embodiment of the present application;

[0200] Figure 4 A schematic diagram of a PDSCH time-sharing transmission using multiple TCI-states provided in an embodiment of the present application;

[0201] Figure 5 A schematic diagram of PDCCH and PDSCH transmission provided in an embodiment of the present application;

[0202] Figure 6 Another transmission diagram of PDCCH and PDSCH provided in an embodiment of the present application;

[0203] Figure 7 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0204] Figure 8 A schematic structural diagram of another communication device provided in an embodiment of the present application;

[0205] Figure 9 A schematic diagram of a chip structure provided in an embodiment of the present application;

[0206] Figure 10 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0207] First, before describing the embodiments of the present application, the names or terms involved in the embodiments of the present application are introduced.

[0208] 1. Beam

[0209] The embodiment of a beam in the NR protocol can be a spatial domain filter, also known as a spatial filter or spatial parameter. The beam used to transmit signals can be called a transmission beam (Tx beam), which can be called a spatial domain transmission filter or spatial transmission parameter; the beam used to receive signals can be called a reception beam (Rx beam), which can be called a spatial domain receive filter or spatial RX parameter.

[0210] The transmit beam may refer to the distribution of signal strength in different directions in space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.

[0211] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beams. The beam forming technology can be beamforming technology or other technologies. The beamforming technology can specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology.

[0212] Beams generally correspond to resources. For example, during beam measurement, network equipment uses different resources to measure different beams. The terminal device then provides feedback on the measured resource quality, allowing the network equipment to determine the quality of the corresponding beam. During data transmission, beam information can also be indicated by its corresponding resource. For example, the network equipment indicates the receive beam information of the physical downlink shared channel to the terminal device using the resource indicated by the TCI indication information in the DCI.

[0213] Optionally, multiple beams with the same or similar communication characteristics can be considered a single beam. A beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals. The one or more antenna ports forming a beam can also be considered an antenna port set.

[0214] In the embodiments of the present application, unless otherwise specified, one beam corresponds to one resource, so the beam corresponding to the resource can be uniquely identified by the resource index.

[0215] 2. Resources

[0216] In beam measurement, the beam corresponding to the resource can be uniquely identified by the index of the resource. The resource can be an uplink signal resource or a downlink signal resource. The uplink signal includes but is not limited to a sounding reference signal (SRS) and a demodulation reference signal (DMRS). The downlink signal includes but is not limited to a channel state information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a UE specific reference signal (US-RS), a demodulation reference signal (DMRS), and a synchronization system / physical broadcast channel block (SS / PBCH block). Among them, the SS / PBCH block can be referred to as a synchronization signal block (SSB).

[0217] Resources can be configured through RRC (Radio Resource Control) signaling. In terms of configuration structure, a resource is a data structure that includes relevant parameters of its corresponding uplink / downlink signal, such as the type of uplink / downlink signal, the resource element that carries the uplink / downlink signal, the transmission time and period of the uplink / downlink signal, the number of ports used to send the uplink / downlink signal, etc. Each uplink / downlink signal resource has a unique index to identify the resource of the downlink signal. It is understandable that the resource index can also be called the resource identifier, and the embodiments of the present application do not impose any restrictions on this.

[0218] 3. TCI status (e.g., TCI-state)

[0219] TCI-state is configured by the network device to each terminal device. Each TCI-state includes its own index tci-StateId and two QCL-Info. Each QCL-Info includes a cell field and bwp-Id, which respectively indicate which bwp (Bandwidth part) of which cell the TCI-state applies to, that is, different cells or different bwp of the same cell can be configured with different QCL-Info. QCL-Info also includes a referenceSignal (reference signal) to indicate which reference signal resource forms a QCL (quasi-co-location) relationship. In data transmission and channel measurement, beams correspond to reference signal resources, and one beam corresponds to one reference signal resource. Therefore, when we say which reference signal resource forms a QCL relationship here, we actually mean which beam forms a QCL relationship. A QCL relationship means that two reference signal resources (or two antenna ports, where antenna ports and reference signal resources also correspond one to one) have certain identical spatial parameters. Which specific spatial parameters are the same depends on the type of the QCL-Info, that is, another field qcl-Type of the QCL-Info. qcl-Type can have four values: {typeA, typeB, typeC, typeD}. For example, typeD indicates that two reference signal resources have the same spatial receive parameter information, that is, two beams have the same receive beam. At most one of the two QCL-Info values ​​included in the TCI-state can be of TypeD.

[0220] The following example illustrates how a network device uses TCI-state to indicate the receive beam information of a data transmission beam to a terminal device, including the configuration, activation, and indication of TCI-state.

[0221] (1) TCI-state configuration: The network device configures multiple TCI-states to the terminal device through RRC (Radio Resource Control) signaling. These TCI-states each include a QCL-Info of type D.

[0222] (2) TCI-state activation: After a network device is configured with multiple TCI-states, it can also activate 8 of them through MAC-CE (Medium Access Control-Control Element). These 8 TCI states correspond one-to-one to the 8 values ​​of the TCI field in the DCI. That is, the 8 values ​​of the TCI field in the DCI correspond to which 8 TCI-states are determined by MAC CE signaling. The MAC CE structure used to activate TCI is as follows: Figure 1 As shown. Among them, fields T0 to T(N-2)x8+7 correspond to the TCI-states with indices 0 to (N-2)x8+7 configured in the first step respectively. The size of each field is 1 bit, and the value can be 0 or 1. A value of 1 indicates that the TCI-state is activated, and a value of 0 indicates that the TCI-state is not activated. Each MAC CE can theoretically have 8 activation fields with a value of 1, and the rest are all 0. The TCI-states corresponding to these 8 fields with a value of 1 are the 8 TCI-states corresponding to the 8 values ​​of the TCI field in the DCI. For example, the minimum value of the TCI field, 000, corresponds to the TCI-state with the smallest index activated in the MAC CE, and so on, one to one correspondence. There are many types of MAC-CE. In addition to the MAC-CE used for TCI-state activation, there are also MAC-CEs with many other uses.

[0223] (3) TCI-state indication: Currently, network devices use the TCI field in the DCI to indicate a specific TCI-state. For example, the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the data transmission beam uses the TCI-state corresponding to 000. The referenceSignal contained in the QCL-Info of type D in the TCI-state is the CSI-RS (Channel State Information-Reference Signal) with an index of #1, indicating that the beam used for data transmission has the same receiving beam as the beam corresponding to the CSI-RS with an index of #1. The receiving beam corresponding to the CSI-RS with an index of #1 can be determined through the beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the receiving beam corresponding to the data transmission beam, and thus use the corresponding receiving beam to receive data.

[0224] The time domain symbol of the embodiment of the present application refers to an orthogonal frequency division multiplexing (OFDM) symbol. In addition, the time domain symbol can also be replaced by a time unit such as a time slot or a subframe. Among them, in the embodiment of the present application, shifting backward by X time domain symbols, or shifting forward by Y time domain symbols, means shifting the X or Y time domain symbols under normal circumstances. If the shift of the X time domain symbols or the shift of the Y time domain symbols is an uplink time domain symbol, then continue to shift until the first downlink time domain symbol is encountered. For example, if the uplink time domain symbol is shifted backward by X time domain symbols, then continue to shift backward until the first downlink time domain symbol is encountered. For example, if the uplink time domain symbol is shifted forward by Y time domain symbols, then continue to shift forward until the first downlink time domain symbol is encountered.

[0225] In the embodiments of the present application, the N PDSCH transmissions correspond to the same or different RVs for the same data, for example, the same RV or different RVs among multiple RVs generated by encoding the same transport block (TB). The N PDSCH transmissions may also correspond to different TBs generated for the same data.

[0226] In the embodiment of the present application, the M PDCCH repeated transmissions carry the transmission parameters of the N PDSCH transmissions. For example, the content carried in the M PDCCH repeated transmissions is the same, which is the transmission parameters of the first PDSCH transmission in the N PDSCH transmissions, such as specific time domain resources, frequency domain resources, and modulation and coding scheme. The content carried in the M PDCCH repeated transmissions can also be different. For example, when M=N, the content carried in the i-th PDCCH transmission is the transmission parameters of the i-th PDSCH transmission.

[0227] The physical downlink shared channel transmission method of the embodiment of the present application can be applied to a PDSCH fast transmission scenario, that is, a scenario where the transmission time interval between the PDSCH transmission time and the corresponding PDCCH transmission time is less than a preset threshold value. The time corresponding to the preset threshold value is the time required for the terminal device to complete PDCCH reception and switch to the PDSCH receiving beam. The preset threshold value can be reported to the network device by the terminal device. In some scenarios, the preset threshold value can be timeDurationForQCL.

[0228] The transmission time of the PDSCH and the transmission time interval of its corresponding PDCCH may be the time interval (e.g., gap) or time offset (e.g., offset) between the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the first PDCCH transmission and the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the first PDSCH transmission, or the time interval (e.g., gap) or time offset (e.g., offset) between the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the last PDCCH transmission and the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the first PDSCH transmission, or the time interval (e.g., gap) or time offset (e.g., offset) between the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the first PDCCH transmission and the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the last PDSCH transmission, or the time interval (e.g., gap) or time offset (e.g., offset) between the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the last PDCCH transmission and the first time domain symbol or the last time domain symbol of the time domain resource corresponding to the last PDSCH transmission. It should be understood that when M is equal to 1, that is, there is one PDCCH transmission, the first PDCCH transmission and the last PDCCH transmission are both equivalent to this one PDCCH.

[0229] It can be understood that the physical downlink shared channel transmission method of the embodiment of the present application can also be applied to the scenario where the transmission time interval of the PDSCH and its corresponding PDCCH is greater than the preset threshold.

[0230] The first time domain range corresponding to the i-th PDSCH transmission mentioned in the embodiments of the present application means that when the value of i is different, the first time domain range determined is different, and the i-th PDSCH transmission is transmitted in the first time domain range corresponding to the i-th PDSCH transmission, wherein the first time domain resources corresponding to the i-th PDSCH transmission refer to the time domain resources actually used for the i-th PDSCH transmission, and the first time domain resources can be the full set or subset of the first time domain range. It can be understood that when the first time domain range is different, the determined first time domain resources are of course different, that is, when the value of i is different, the determined first time domain resources are also different.

[0231] See Figure 2 , is a schematic diagram of the network architecture applying the embodiment of the present application. Figure 2 The network architecture shown includes network devices and terminal devices, wherein the number of network devices can be one or more, and the number of terminal devices can be one or more.

[0232] It can be understood that the embodiments of the present application can be applied to a variety of wireless communication systems, and the wireless communication systems may include but are not limited to long term evolution (LTE) systems, NR systems, future communication systems, etc., such as future networks or sixth generation communication systems.

[0233] It is understandable that Figure 2 The number and form of the devices shown are for example only and do not constitute a limitation on the embodiments of the present application. For example, an actual application may include two or more network devices.

[0234] In an embodiment of the present application, a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. The network device may include various forms of macro base stations, micro base stations (also known as small stations), relay stations, access points, etc. In systems using different wireless access technologies, the names of network devices may be different, such as BTS (Base Transceiver Station) in GSM (Global System for Mobile Communication) or CDMA (Code Division Multiple Access) networks, NB (NodeB) in WCDMA (Wideband Code Division Multiple Access), eNB or eNodeB (Evolutional NodeB) in LTE (Long Term Evolution). The network device may also be a wireless controller in a CRAN (Cloud Radio Access Network) scenario. The network device may also be a base station device in a future 5G network or a network device in a future evolved PLMN network. The network device may also be a wearable device or an in-vehicle device. The network device may also be a transmission and reception point (TRP). Network device can also refer to the general term for all devices on the network end. For example, when multiple TRPs are used to transmit data to terminal devices, multiple TRPs are collectively referred to as network devices.

[0235] In the embodiments of the present application, the terminal device is a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, etc. The embodiments of the present application do not limit the application scenarios. Terminal equipment may also be sometimes referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, UE agent, or UE device, etc. Terminal equipment may also be fixed or mobile.

[0236] The network device uses a specific transmit beam to send the PDSCH to the terminal device on a specific time-frequency resource. Once the terminal device knows the specific transmit beam and the specific time-frequency resource, it will use the correct receive beam (i.e., the receive beam corresponding to the transmit beam) and receive the PDSCH sent by the network device on the specific time-frequency resource. In the 3GPP R15 protocol, information related to the transmit beam can be indicated by the TCI (Transmission Configuration Indication) field in the downlink control information (DCI) of the PDCCH. The TCI field is 3 bits in size and can specifically represent 8 different values ​​(codepoints). Each value of the TCI field corresponds to a TCI-state index, which uniquely identifies a TCI-state. The TCI-state includes several parameters that can be used to determine information related to the transmit beam. For example, the TCI-state includes a reference signal resource, which is used to indicate information about the transmit beam (reference signal resources have a corresponding relationship with beams). Specific time-frequency resources can also be indicated by the DCI in the PDCCH. However, in the current technical solution, the terminal device must complete PDCCH decoding and obtain the PDSCH transmission parameters before the network device can send PDSCH. Otherwise, the terminal device cannot accurately receive the PDSCH sent by the network device, which will cause a large delay in data transmission.

[0237] For Ultra-Reliable and Low Latency Communications (URLLC), the requirements for the latency and reliability of data transmission are relatively high. In order to improve the reliability of URLLC data transmission, multiple TCI-states can be used to repeatedly transmit PDSCH in time-sharing mode. The repeatedly transmitted PDSCH carries the same or different RV (Redundant version) of the same data. Each TCI-state can correspond to a beam. Optionally, multiple beams of the same TRP can be used to repeatedly transmit PDSCH. Optionally, a TCI-state can also correspond to a TRP, that is, PDSCH is repeatedly transmitted through multiple TRPs, and each TRP uses a beam. For example Figure 4As shown, at two different times, one of the two TCI-states (TCI-state #1 and TCI-state #2) is used to repeatedly transmit the PDSCH to improve data transmission reliability. PDSCH #1 and PDSCH #2 are repeated transmissions of the same data, for example, PDSCH #1 and PDSCH #2 carry the same or different RVs for the same data.

[0238] In an embodiment of the present application, when multiple TCI-states are used to repeatedly transmit PDSCH in time-sharing, the relevant parameters of each PDSCH transmission can be determined, such as the TCI-state corresponding to each PDSCH transmission, and the time-frequency resource position. In an embodiment of the present application, in order to ensure the reliability and low latency of PDSCH transmission, the network device does not need to wait until the terminal device parses the PDCCH to obtain the time-frequency resource position and the adopted TCI-state of the PDSCH before sending the PDSCH. Instead, the PDSCH can be sent before the terminal device parses the PDCCH to obtain the transmission parameters of the PDSCH.

[0239] In an embodiment of the present application, the terminal can determine the time domain range corresponding to each PDSCH transmission based on the time-frequency resource location information of the PDCCH. The TCI-state used for each PDSCH transmission can be the same as the TCI-state used for each PDCCH transmission. The terminal device can use the TCI-state corresponding to each PDSCH transmission to cache the signals within the time domain range corresponding to each PDSCH transmission. After subsequently parsing the PDCCH to obtain the specific time-frequency resources for each PDSCH transmission, the signals on the specific time-frequency resources are merged and decoded to obtain each PDSCH transmission.

[0240] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0241] based on Figure 2 The network architecture shown in FIG2 is a schematic diagram of a physical downlink shared channel transmission method provided by an embodiment of the present application. In the introduction, the names of the information exchanged between the network device and the terminal device are used as examples and do not constitute a limitation on the embodiments of the present application.

[0242] See Figure 3 , is a flow chart of a physical downlink shared channel transmission method provided in an embodiment of the present application, which may include but is not limited to the following steps:

[0243] In step S301, the network device uses the first time domain resource to perform the i-th physical downlink shared channel (PDSCH) transmission. The first time domain resource is a subset or a full set of the first time domain range corresponding to the i-th PDSCH transmission. The first time domain range is determined by the time domain resource information of the physical downlink control channel (PDCCH). The PDCCH is used to schedule the PDSCH. The i-th PDSCH is one of N repeated transmissions, and N is an integer greater than or equal to 2.

[0244] Step S302: The terminal device determines a first time domain range corresponding to the i-th PDSCH transmission according to the time domain resource information of the PDCCH;

[0245] In an embodiment of the present application, the PDCCH may be transmitted repeatedly or not, that is, it may be transmitted M=1 times or M>1 times. The PDSCH is transmitted repeatedly N times, and the i-th PDSCH transmission may be one of the N repeated transmissions, wherein the PDSCHs transmitted N times may be the same or different redundant versions (RV) corresponding to the same data. By repeatedly transmitting the PDCCH N times, the reliability of data transmission can be improved.

[0246] The network device determines a first time domain range corresponding to the i-th PDSCH transmission based on the time domain resource information of the PDCCH, and schedules the i-th PDSCH transmission to be transmitted within the determined first time domain range. Different values ​​of i result in different determined first time domain ranges, i.e., each value of i corresponds to one first time domain range.

[0247] Correspondingly, the terminal device determines the first time domain range corresponding to the i-th PDSCH transmission based on the time domain resource information of the PDCCH, further receives the signal within the first time domain range corresponding to the i-th PDSCH transmission, and caches the signal within the first time domain range. It can be understood that the method for determining the first time domain range corresponding to the i-th PDSCH transmission by the terminal device is the same as the method for determining the first time domain range corresponding to the i-th PDSCH transmission by the network device.

[0248] Optionally, in different transmission scenarios, the time domain resource information of the PDCCH is different. In an embodiment of the present application, the network device can pre-indicate the time domain resources of each PDCCH transmission to the terminal device directly or indirectly.

[0249] Below Figure 5 and Figure 6 Two transmission scenarios are described, respectively describing how to determine the first time domain range where the i-th PDSCH transmission is located according to the time domain resource information of the PDCCH.

[0250] Please refer to Figure 5 , is a PDCCH and PDSCH transmission diagram provided in an embodiment of the present application. In this embodiment, both PDSCH and PDCCH can be repeatedly transmitted. For example, the number of times PDSCH is repeatedly transmitted is N, and the number of times PDCCH is repeatedly transmitted is M, where M can be equal to N, or M can be greater than N, or M can be less than N, which is not limited in the embodiment of the present application.

[0251] The i-th PDSCH transmission and the i-th PDCCH transmission can be paired for transmission, that is, one PDSCH transmission corresponds to one PDCCH transmission. If the number of PDCCH repetitions M is greater than the number of PDSCH repetitions N, the subsequent MN PDCCH transmissions can be transmitted separately. If the number of PDCCH repetitions M is less than the number of PDSCH repetitions N, the subsequent NM PDSCH transmissions can be transmitted separately.

[0252] The M repeated transmissions of the above-mentioned PDCCH can be transmitted using K TCI-states, where the value of K can be less than M, or the value of K can be equal to M, or the value of K can be greater than M. If the value of K is less than M, the K TCI-states can be used cyclically for M repeated transmissions of the PDCCH. If the value of K is equal to M, the K TCI-states correspond one-to-one to the M repeated transmissions of the PDCCH. If the value of K is greater than M, M TCI-states can be selected from the K TCI-states for M repeated transmissions of the PDCCH, for example, the first K or the last K.

[0253] Optionally, the value of K may be a default value specified by the protocol (e.g., K=2), or a value reported by the terminal device to the network device through the capability reporting process, or indicated to the terminal device through RRC signaling, MAC CE signaling, or DCI signaling, or indirectly determined by other configuration parameters. For example, the K TCI-states are the K TCI-states activated by a control resource set (Control Resource Set, CORESET) corresponding to the PDCCH, that is, one CORESET can activate K TCI-states, or the K TCI-states are the number of K TCI-states activated by the K control resource sets corresponding to the PDCCH, that is, one control resource set activates one activated TCI-state. Further optionally, the value of K may also be the number of blind detection spaces (e.g., searchSpace) associated with the CORESET corresponding to the PDCCH. The value of K may also be the number of monitoring opportunities (e.g., monitoroccasion) contained in the blind detection space (e.g., searchSpace) associated with the CORESET corresponding to the PDCCH. The value of K may also be the number of CORESETs associated with the blind detection space (eg, searchSpace) corresponding to the PDCCH. Alternatively, the K TCI-states may be indicated by the network device to the terminal device through RRC signaling for repeated PDCCH transmission.

[0254] Optionally, the value of M can be determined using the method for determining the value of K described above. Furthermore, it can also be calculated using the value of K. For example, M is equal to K, or M is equal to an integer multiple of K, or M is equal to K plus a positive integer or minus a positive integer, etc.

[0255] Optionally, the value of N can be determined using the method for determining the value of K described above. Furthermore, it can also be calculated using the value of K or M. For example, N is equal to M, or N is equal to an integer multiple of M, or N is equal to M plus a positive integer or minus a positive integer, etc. For another example, N is equal to K, or N is equal to an integer multiple of K, or N is equal to K plus a positive integer or minus a positive integer, etc.

[0256] The M repeated transmissions of the PDCCH using K TCI-states include, but are not limited to, the following optional transmission methods:

[0257] If M is equal to K, then one of the K TCI-states is used to perform a PDCCH transmission; that is, the number of repeated transmissions of the PDCCH is in a one-to-one correspondence with the TCI-state.

[0258] If M is greater than K, the following two optional methods can be used to perform each PDCCH transmission.

[0259] The first optional method uses a round-robin approach, traversing each TCI-state in a specific order for each PDCCH transmission. Specifically, the first transmission uses the first TCI-state, the second transmission uses the second TCI-state, and so on, until the Kth transmission uses the Kth TCI-state. After more than K transmissions, the TCI-state order used for the previous K transmissions is used again, traversing each TCI-state in turn for transmission. That is, the K+1th transmission uses the first TCI-state, the K+2th transmission uses the second TCI-state, and so on.

[0260] For example, assuming K = 2 and M = 6, that is, two TCI-states are used for six PDCCH transmissions, and the two TCI-states are: TCI-state#1 and TCI-state#2. Then the TCI-states used for the six PDCCH transmissions are {TCI-state#1, TCI-state#2, TCI-state#1, TCI-state#2, TCI-state#1, TCI-state#2}. The i-th TCI-state in this method can refer to the TCI-state with the i-th largest or i-th smallest index among the K TCI-states, that is, traversing each TCI-state in order of the size of the TCI-state index. Alternatively, it can also be traversing each TCI-state in the order of the K TCI-states in the configuration information, for example, RRC signaling configures K TCI-states for repeated PDCCH transmission. Alternatively, if the K TCI-states are K TCI-states activated by MAC-CE, each TCI-state may be traversed sequentially according to the order of the K TCI-states in the activation signaling MAC-CE. Alternatively, if the K TCI-states are K TCI-states activated by K CORESETs, each TCI-state may be traversed sequentially according to the order of the indexes of the K CORESETs corresponding to the K TCI-states.

[0261] Optionally, the TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission. For example, the first PDSCH transmission and the first PDCCH transmission use the same TCI-state, the second PDSCH transmission and the second PDCCH transmission use the same TCI-state, and so on.

[0262] When the number of PDSCH retransmissions N is greater than the number of PDCCH retransmissions M, the subsequent NM transmissions can be transmitted sequentially using the TCI-states of the previous M transmissions. For example, if the number of PDSCH retransmissions N = 5 and the number of PDCCH retransmissions M = 3, and the PDCCH retransmissions use three TCI-states (TCI-state #1, TCI-state #2, and TCI-state #3), then the first three PDSCH retransmissions use TCI-state #1, TCI-state #2, and TCI-state #3, respectively, and the last two PDSCH transmissions use TCI-state #1 and TCI-state #2, respectively. Alternatively, if the number of repeated transmissions of PDSCH is N=5, the number of repeated transmissions of PDCCH is M=3, and the repeated transmission of PDCCH uses two TCI-states, and the two TCI-states are (TCI-state#1, TCI-state#2), then the first three repeated transmissions of PDSCH use TCI-state#1, TCI-state#2 and TCI-state#1 respectively, and the last two PDSCH transmissions can use TCI-state#1 and TCI-state#2, or, can also be TCI-state#2 and TCI-state#1, that is, K TCI-states of TCI-state are used in sequence in a cyclic manner, which is not limited in the embodiments of the present application.

[0263] A second optional method is to determine the number of times each TCI-state is used for repeated transmission based on the values ​​of M and K, and then use each TCI-state for continuous transmission. After the determined number of repeated transmissions is completed, another TCI-state is used for continuous repeated transmission. For example, if K = 2 and M = 6, then the number of times each TCI-state is used for repeated transmission is 3. The two TCI-states are TCI-state #1 and TCI-state #2. These two TCI-states are used for 6 PDCCH repeated transmissions, and each TCI-state corresponds to 3 PDCCH repeated transmissions. Then, the first 3 PDCCH transmissions use TCI-state #1, and the next 3 PDCCH transmissions use TCI-state #2. The TCI-states used for the 6 PDCCH repeated transmissions are {#1, #1, #1, #2, #2, #2} in sequence. For another example, assuming K = 2 and M = 5, it can be determined that one of the TCI-states is used for repeated transmission 3 times and the other TCI-state is used for repeated transmission 2 times. If the two TCI-states are TCI-state#1 and TCI-state#2, the two TCI-states are used for 5 PDCCH repeated transmissions. TCI-state#1 may correspond to 3 PDCCH repeated transmissions and TCI-state#2 may correspond to 2 PDCCH repeated transmissions. That is, the first 3 PDCCH transmissions use TCI-state#1 and the last 2 PDCCH transmissions use TCI-state#2. The TCI-states used for the 5 PDCCH transmissions are {#1,#1,#1,#2,#2} respectively. Alternatively, TCI-state#1 may correspond to 2 repeated PDCCH transmissions, and TCI-state#2 may correspond to 3 repeated PDCCH transmissions, that is, the first 2 PDCCH transmissions use TCI-state#1, and the next 3 PDCCH transmissions use TCI-state#2. The TCI-states used for the 5 PDCCH transmissions are {#1, #1, #2, #2, #2} respectively, which is not limited in the embodiments of the present application.

[0264] Optionally, in this embodiment, the TCI-state used for the i-th physical downlink shared channel transmission and the TCI-state used for the i-th physical downlink control channel transmission may be the same. For example, the first PDSCH transmission and the first PDCCH transmission use the same TCI-state, the second PDSCH transmission and the second PDCCH transmission use the same TCI-state, and so on. Optionally, in this embodiment, M may be equal to N. Alternatively, when M is less than N, that is, when the number of repeated transmissions N of the PDSCH is greater than the number of repeated transmissions M of the PDCCH, the subsequent NM transmissions may also sequentially traverse the TCI-states of the previous M transmissions for transmission.

[0265] It can be understood that the transmission parameters of the above-mentioned PDCCH transmissions and PDSCH transmissions (including but not limited to the number of transmissions M, N, the number of TCI-states K, the TCI-state adopted, the correspondence between PDCCH and PDSCH, etc.) can also be determined by other methods, such as through RRC signaling or MAC CE signaling or DCI information.

[0266] To facilitate the network device to transmit the PDSCH before the terminal device obtains relevant transmission parameters of the PDSCH (such as specific time-frequency resource location, modulation and coding scheme, etc.) from the PDCCH, the network device may determine a first time domain range corresponding to the i-th PDSCH transmission based on the time domain resource information of the i-th PDCCH transmission and / or the time domain resource information of the (i+1)-th PDCCH transmission, wherein the (i+1)-th PDCCH transmission is the next transmission after the i-th PDCCH transmission. The network device schedules the i-th PDSCH transmission to be transmitted within the determined first time domain range.

[0267] Further optionally, the frequency domain range in which the i-th PDSCH transmission is located can also be limited. For example, the frequency domain range can be the frequency domain resources corresponding to the entire bandwidth slice (Bandwidth part, BWP), or the frequency domain resources corresponding to the entire bandwidth of a cell configured for the terminal, or the frequency domain resources corresponding to the bandwidth of all cells configured for the terminal device. The network device schedules the i-th PDSCH transmission to be transmitted within this frequency domain range.

[0268] The first time domain range corresponding to the i-th PDSCH transmission may be determined by the starting time domain symbol and the ending time domain symbol. Alternatively, the first time domain range may be determined by the starting time domain symbol and the number of time domain symbols included in the first time domain range; alternatively, the first time domain range may be determined by the ending time domain symbol and the number of time domain symbols included in the first time domain range. Alternatively, the first time domain range may be determined by the starting time domain symbol, the ending time domain symbol, and the number of time domain symbols included in the first time domain range.

[0269] Among them, the starting time domain symbol of the first time domain range corresponding to the above-mentioned i-th PDSCH transmission may be the first time domain symbol of the time domain resource of the i-th PDCCH transmission, or the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission may be the last time domain symbol of the time domain resource of the i-th PDCCH transmission, or the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission may be the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the i-th PDCCH transmission shifted backward by X time domain symbols, where X is an integer greater than or equal to 1. The number of offset time domain symbols X may be specified by the protocol by default, or may be indicated to the terminal device by the network device through RRC signaling, MAC CE signaling, or DCI information, or may be reported to the network device by the terminal device, for example, reported to the network device through the terminal capability reporting process. For example, if X=1 and is offset from the last time domain symbol of the time domain resource transmitted by the i-th PDCCH, then the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission can be the next time domain symbol after the last time domain symbol of the time domain resource transmitted by the i-th PDCCH.

[0270] Among them, the end time domain symbol of the first time domain range corresponding to the above-mentioned i-th PDSCH transmission can be the symbol corresponding to the first time domain symbol of the time domain resource of the i+1-th PDCCH transmission shifted forward by Y time domain symbols, and Y is an integer greater than or equal to 1. The number of offset time domain symbols Y can be specified by the protocol by default, or it can be indicated to the terminal device by the network device through RRC signaling, MAC CE signaling or DCI information, or it can be reported to the network device by the terminal device, for example, reported to the network device through the terminal capability reporting process. For example, Y=1, the end time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission is a time domain symbol before the first time domain symbol of the time domain resource of the i+1-th PDCCH transmission, that is, the time domain range corresponding to the i-th PDSCH transmission cannot overlap with the time domain resource of the next PDCCH transmission. If Y is greater than 1, there is a certain symbol interval between the time domain range corresponding to the i-th PDSCH transmission and the time domain resource of the i+1-th PDCCH transmission. For example, the first time domain symbol of the (i+1)th PDCCH transmission is symbol 10, and the last time domain symbol of the time domain range corresponding to the i-th PDSCH transmission is symbol 8, then the symbol interval is 1 symbol.

[0271] The number of time domain symbols included in the above-mentioned first time domain range may be specified by default in the protocol, or indicated to the terminal device by the network device, for example, indicated to the terminal device through RRC signaling or MAC CE signaling or DCI information, or reported to the network device by the terminal device, for example, reported to the network device through the terminal capability reporting process, or determined according to the starting symbol and the ending symbol of the first time domain range. Optionally, the number of symbols included in the time domain range corresponding to each PDSCH transmission in the N repeated transmissions of PDSCH may be the same, for example, N=3, and the number of time domain symbols included in the time domain range corresponding to the first PDSCH transmission, the time domain range corresponding to the second PDSCH transmission, and the time domain range corresponding to the third PDSCH transmission may all be 3 time domain symbols.

[0272] Optionally, when the starting time domain symbol and the number of time domain symbols are used to determine the first time domain range corresponding to the i-th PDSCH transmission, if the end time domain symbol of the determined first time domain range exceeds a specific symbol threshold and the number of the end time domain symbol is greater than the number of the symbol threshold, the symbol threshold is used as the end time domain symbol, and together with the above-mentioned starting time domain symbol, the first time domain range is re-determined. The symbol threshold can be the symbol corresponding to the start time domain symbol of the i+1-th PDCCH transmission shifted forward by Y (Y is greater than or equal to 1) time domain symbols. For example, when Y is equal to 1, the above-mentioned symbol threshold refers to the time domain symbol before the start time domain symbol of the i+1-th PDCCH transmission. Alternatively, if the starting time domain symbol of the first time domain range determined according to the end time domain symbol and the number of symbols is less than a specific symbol threshold, that is, the number of the starting time domain symbol is less than the number of the symbol threshold, the symbol threshold is used as the starting time domain symbol, and together with the above-mentioned end time domain symbol, the first time domain range is re-determined.

[0273] When the above method uses the time domain resources of the i-th PDCCH transmission and the i+1-th PDCCH transmission to determine the first time domain range of the i-th PDSCH transmission, if there is an i-th PDCCH transmission but there is no i+1-th PDCCH transmission, that is, the number of PDCCH transmissions is equal to i, if the first time domain range corresponding to the i-th PDSCH transmission is determined by the starting time domain symbol and the ending time domain symbol, since there is no i+1-th PDCCH transmission, the ending time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission cannot be determined by the i+1-th PDCCH transmission. In an embodiment of the present application, the starting time domain symbol and the number of time domain symbols contained in the first time domain range corresponding to the i-th PDSCH transmission can be determined, wherein the number of time domain symbols included in the first time domain range corresponding to the i-th PDSCH transmission can be determined by the number of time domain symbols included in the first time domain range of a previous PDSCH transmission (such as the 1st PDSCH transmission). For example, if the number of time domain symbols included in the first time domain range corresponding to each PDSCH transmission is equal, then when the number of time domain symbols included in the first time domain range corresponding to the first PDSCH transmission is determined, the number of time domain symbols included in the first time domain range corresponding to the i-th PDSCH transmission can be determined. Optionally, the number of time domain symbols included in the first time domain range of each subsequent PDSCH transmission can be determined based on the number of time domain symbols included in the first time domain range corresponding to the first PDSCH transmission, and the first time domain range corresponding to each subsequent PDSCH transmission can be determined. For example, the first time domain range of the first PDSCH transmission is determined by the starting time domain symbol and the ending time domain symbol. After determining the first time domain range of the first PDSCH transmission, the number of time domain symbols included in the first time domain range of the first PDSCH transmission can be determined. For each subsequent PDSCH transmission, the first time domain range corresponding to each subsequent PDSCH transmission can be determined based on the number of time domain symbols included in the first time domain range of the PDSCH transmission, and the starting time domain symbol or the ending time domain symbol.

[0274] Further optionally, if even the i-th PDCCH transmission does not exist, that is, the number of PDCCH transmissions is less than i and the number of PDSCH repeated transmissions is greater than the number of PDCCH repeated transmissions, then the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission can be determined by the first time domain range corresponding to a previous PDSCH transmission. For example, the number of time domain symbols included in the first time domain range corresponding to the i-th PDSCH transmission is equal to the number of time domain symbols included in the first time domain range corresponding to the previous PDSCH transmission. Further, the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission may be the next time domain symbol of the ending time domain symbol of the first time domain range corresponding to the i-1th PDSCH transmission, or may be the first downlink time domain symbol after the ending time domain symbol of the i-1th PDSCH transmission, or may be the symbol after the starting time domain symbol or the ending time domain symbol of the i-1th PDSCH transmission is offset backward by X time domain symbols, where X may be greater than or equal to 1, or may be the first time domain symbol of the next time slot of the time slot in which the i-1th PDSCH transmission is located, or the fourth time domain symbol, or the first downlink time domain symbol.

[0275] Optionally, in the above method, if the determined first time domain range includes an uplink time domain symbol, the uplink time domain symbol can be ignored in the actual transmission. For example, the first time domain range includes 4 time domain symbols, including one uplink time domain symbol and three downlink time domain symbols. Then, when the PDSCH is actually transmitted, it will be transmitted on these three downlink time domain symbols. Alternatively, if the determined first time domain symbol range includes an uplink time domain symbol, this transmission is ignored in the actual transmission. For example, the first time domain range corresponding to each of the four PDSCH transmissions is determined according to the above method. If one of the first time domain ranges contains an uplink time domain symbol, the PDSCH is not transmitted in the first time domain range, that is, the PDSCH transmission is abandoned. Alternatively, when determining the first time domain range corresponding to each PDSCH transmission, if an uplink time domain symbol is encountered, the uplink time domain symbol is skipped. For example, when determining the first time domain range based on the starting time domain symbol and the number of time domain symbols contained in the first time domain range, if an uplink time domain symbol is encountered, the uplink time domain symbol is skipped to ensure that the number of downlink time domain symbols contained in the first time domain range is equal to the number of time domain symbols contained in the above-mentioned first time domain range.

[0276] Please refer to Figure 6 , which is another PDCCH and PDSCH transmission diagram provided in an embodiment of the present application. In this embodiment, PDSCH and PDCCH are transmitted separately, that is, PDCCH transmission is performed first, and when PDCCH transmission is completed, PDSCH is repeatedly transmitted.

[0277] Optionally, the PDCCH may be transmitted once, or may be repeatedly transmitted. In the embodiment of the present application, the number of times the PDSCH is repeatedly transmitted is N, and the number of times the PDCCH is transmitted is M. M may be an integer greater than or equal to 1. If M=1, it indicates that the PDCCH is not repeatedly transmitted. Optionally, if M is greater than 1, then M may be equal to N, or M may be greater than N, or M may be less than N, which is not limited in the embodiment of the present application.

[0278] The M repeated transmissions of the above-mentioned PDCCH can be transmitted using K TCI-states, where the value of K can be less than M, or the value of K can be equal to M, or the value of K can be greater than M. If the value of K is less than M, the K TCI-states can be used cyclically for M repeated transmissions of the PDCCH. If the value of K is equal to M, the K TCI-states correspond one-to-one to the M repeated transmissions of the PDCCH. If the value of K is greater than M, M TCI-states can be selected from the K TCI-states for M repeated transmissions of the PDCCH.

[0279] The values ​​of M, N and K can be determined by referring to Figure 5 The description of the embodiment will not be repeated here. The transmission mode of the M-times repeated transmission of the PDCCH using K TCI-states can also be referred to. Figure 5 The description of the embodiments will not be repeated here.

[0280] Optionally, in this implementation, the TCI-state used for the i-th PDSCH transmission may be the same as the TCI-state used for the i-th PDCCH transmission. If the number of PDCCH repetition transmissions M is less than the number of PDSCH repetition transmissions N, then the NM PDSCH transmissions may also traverse the TCI-state used for the first M transmissions. For details, please refer to Figure 5 The description of the embodiments will not be repeated here.

[0281] In order to facilitate the terminal device to obtain the relevant transmission parameters of PDSCH (such as specific time-frequency resource location, modulation and coding scheme, etc.) from PDCCH, when the network device performs N repeated transmissions of PDSCH, the network device can determine the first time domain range corresponding to the first PDSCH transmission based on the time domain resource information of the M-th PDCCH, wherein the M-th PDCCH transmission is the last of the M repeated transmissions of PDCCH. If M is equal to 1 (that is, PDCCH is not repeatedly transmitted), the first PDSCH determines the first time domain range corresponding to the first PDSCH transmission based on the time domain resource information of the PDCCH.

[0282] Optionally, the first time domain ranges corresponding to the remaining i-th PDSCH transmissions can be determined based on the first time domain range corresponding to the i-1-th PDSCH transmission, where i is an integer greater than 1. For example, the second PDSCH transmission is determined based on the first time domain range corresponding to the first PDSCH transmission, the third PDSCH transmission is determined based on the first time domain range corresponding to the second PDSCH transmission, and so on.

[0283] Further optionally, the frequency domain range in which the N PDSCH transmissions are located can also be limited. For example, the frequency domain range can be the frequency domain resources corresponding to the entire bandwidth slice (Bandwidth part, BWP), or the frequency domain resources corresponding to the entire bandwidth of a cell configured for the terminal, or the frequency domain resources corresponding to the bandwidth of all cells configured for the terminal device. The network device schedules N PDSCH transmissions to be transmitted within this frequency domain range.

[0284] Optionally, the first time domain range corresponding to the first PDSCH transmission can be determined by the starting time domain symbol of the first time domain range and the number of time domain symbols contained in the first time domain range. The first time domain range corresponding to the first PDSCH transmission can also be determined by the starting time domain symbol of the first time domain range and the ending time domain symbol of the first time domain range, for example, the last time domain symbol of the time slot where the starting time domain symbol is located or the last downlink time domain symbol is used as the ending time domain symbol.

[0285] In one possible design, the starting time domain symbol of the first time domain range corresponding to the first PDSCH transmission can be the symbol obtained by shifting the first time domain symbol or the last time domain symbol of the M-th PDCCH transmission backward by X time domain symbols, and X can be an integer greater than or equal to 1. If X=1, and it is shifted backward from the last time domain symbol of the M-th PDCCH transmission, then the starting time domain symbol of the first time domain range corresponding to the first PDSCH transmission is the first downlink time domain symbol after the last time domain symbol of the M-th PDCCH transmission. The above value of X can be the default value specified by the protocol, or it can be the value reported by the terminal device to the network device through the capability reporting process, or it can be indicated to the terminal device by RRC signaling, MAC CE signaling, or DCI signaling.

[0286] Optionally, the starting time domain symbol of the first time domain range corresponding to the first PDSCH transmission may also be the first time domain symbol of the next time slot of the time slot where the PDCCH corresponding to the PDSCH is located, or the fourth time domain symbol. If the first time domain symbol is an uplink symbol, continue to shift backward until the first downlink time domain symbol is encountered, or shift forward until the first downlink time domain symbol is encountered. If the fourth time domain symbol is an uplink time domain symbol, continue to shift backward until the first downlink time domain symbol is encountered, or shift forward until the first downlink time domain symbol is encountered. It will be understood that the first time domain symbol and the fourth time domain symbol of the above-mentioned next time slot are only examples, and may also be other time domain symbols of the next time slot, such as the second, third, etc., which are not limited in the embodiments of the present application.

[0287] Except for the first PDSCH transmission, the starting time domain symbol of the first time domain range corresponding to the remaining PDSCH transmissions (such as the i-th PDSCH transmission, i is an integer greater than 1) can be the first time domain symbol or the last time domain symbol of the first time domain range corresponding to the previous PDSCH transmission (i.e., the i-1th PDSCH transmission) is offset by X time domain symbols, where X is an integer greater than or equal to 1. If X=1, and it is offset from the last time domain symbol of the previous PDSCH transmission, then the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission is the first time domain symbol after the last time domain symbol of the first time domain range corresponding to the i-1th PDSCH transmission. If X is greater than 1, then the starting time domain symbol of the first time domain range corresponding to the i-th PDSCH transmission can be the last time domain symbol of the first time domain range corresponding to the i-1th PDSCH transmission plus the time domain symbol after a fixed interval.

[0288] The number of time domain symbols contained in the first time domain range corresponding to each PDSCH transmission section may be equal. The specific value may be a default value specified in the protocol, a value reported by the terminal device to the network device through the capability reporting process, or an indication to the terminal device through RRC signaling, MAC CE signaling, or DCI signaling.

[0289] Alternatively, in this embodiment, the number of downlink time-domain symbols available for PDSCH transmission in the time slot in which the PDSCH is located may be determined. For example, in the time slot, the number of downlink time-domain symbols following the PDCCH (if the PDCCH that schedules the PDSCH is also transmitted in the time slot) is X, and the number of times the PDSCH is repeatedly transmitted is N. Then, the number of time-domain symbols included in the first time-domain range corresponding to each PDSCH transmission is X divided by Z, rounded down.

[0290] Among them, the above Figure 5 and Figure 6The two PDCCH and PDSCH transmission modes are only examples and do not constitute a limitation to the embodiments of the present application. PDCCH and PDSCH transmission can also be other transmission modes.

[0291] Optionally, if the terminal device receives a downlink signal or downlink channel within the first time domain range corresponding to the i-th PDSCH transmission, and the TCI-state used by the downlink signal or downlink channel is different from the TCI-state used by the i-th PDSCH transmission determined by the above method, the terminal device abandons the reception of the i-th PDSCH. Alternatively, if the terminal device receives a downlink signal or downlink channel within the first time domain range corresponding to the i-th PDSCH transmission, and the TCI-state used by the downlink signal or downlink channel is different from the TCI-state used by the i-th PDSCH transmission determined by the above method, the terminal device abandons the reception of each PDSCH.

[0292] The network device adopts the TCI-state corresponding to the i-th PDSCH transmission, and transmits the i-th PDSCH transmission in the first time domain range and the first frequency domain range corresponding to the i-th PDSCH transmission, wherein the i-th PDSCH transmission may be transmitted on the first time domain resource within the first time domain range corresponding to the i-th PDSCH transmission, and the first frequency domain resource where the i-th PDSCH transmission is located may be a subset or the full set of the above-mentioned first frequency domain range. Among them, the first time domain resource may be the full set or a subset of the first time domain range. The method for determining the first time domain resource can refer to the description of step S303 and will not be repeated for the time being. Among them, the first time domain range is different for different values ​​of i, and correspondingly, the first time domain resource is also different. One value of i corresponds to a first time domain range, and a first time domain range includes a first time domain resource.

[0293] Step S303: The terminal device receives the content corresponding to the i-th PDSCH transmission according to the first time domain range.

[0294] In an embodiment of the present application, the terminal device determines the first time domain resource corresponding to the i-th PDSCH transmission from the first time domain range, and obtains the content corresponding to the i-th PDSCH transmission from the first time domain resource, and the first time domain resource is a subset or the entire set of the first time domain range.

[0295] Among them, if the first time domain resource is the full set of the first time domain range, that is, the first time domain range corresponding to the i-th PDSCH transmission is the first time domain resource corresponding to the i-th PDSCH transmission. In this case, the network device may not indicate the time domain resource allocation of each repeated transmission of the PDSCH through the PDCCH. The time domain resource allocation field in the PDCCH can be omitted. When the terminal device interprets the PDCCH, it will assume that the time domain resource allocation field does not exist or the field length is 0 and will skip this field.

[0296] If the first time domain resource is a subset of the first time domain range, the first time domain resource corresponding to the i-th PDSCH transmission can be determined by the starting time domain symbol of the first time domain resource and the number of time domain symbols included in the first time domain resource. Among them, the starting time domain symbol and the number of time domain symbols included in the first time domain resource can be defined in a variety of different ways. Figure 5 and Figure 6 Two PDCCH and PDSCH transmission diagrams are used as examples. Among them, the above-mentioned first time domain resource is the entire set of the first time domain range, which is still applicable to Figure 5 and Figure 6 Example.

[0297] If adopted Figure 5 The PDCCH and PDSCH are transmitted in the manner shown. The following describes several optional implementations of how to determine the first time domain resource corresponding to the i-th PDSCH transmission (if the first time domain resource is the entire set of the first time domain range, please refer to the description of the previous embodiment. The following optional implementations mainly describe how to determine the first time domain resource when the first time domain resource is a subset of the first time domain range):

[0298] A first optional implementation method is to use the starting time domain symbol of the first time domain range corresponding to the determined i-th PDSCH transmission as the starting time domain symbol of the first time domain resource corresponding to the i-th PDSCH transmission. In this case, the network device may not indicate the starting time domain symbol of the PDSCH transmission through the PDCCH, but may indicate the number of time domain symbols of the PDSCH transmission. For example, the PDCCH indicates the number of time domain symbols used for the first PDSCH transmission (that is, the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission), and the protocol stipulates that the number of time domain symbols contained in the first time domain resource corresponding to each PDSCH transmission is equal, so that the terminal device can obtain the number of time domain symbols contained in the first time domain resource corresponding to each PDSCH transmission. It can be understood that the number of time domain symbols contained in the first time domain resource corresponding to each PDSCH transmission may also be different, for example, it may be an integer multiple of the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission, or the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission plus an integer. The integer may be a default value specified by the protocol, or a value reported by the terminal device to the network device through a capability reporting process, or may be indicated to the terminal device by RRC signaling, MAC CE signaling, or DCI signaling.

[0299] In a second optional implementation manner, the starting time domain symbol of the first time domain resource corresponding to the first PDSCH transmission can be determined by the downlink control information carried in the PDCCH. The starting time domain symbols of the first time domain resources corresponding to the remaining i-th (i is greater than 1) PDSCH transmissions can be determined by the first symbol interval and the starting time domain symbol of the time domain resource of the i-th PDCCH transmission. The first symbol interval is the symbol interval between the starting time domain symbol of the first time domain resource corresponding to the first PDSCH transmission and the starting time domain symbol of the time domain resource of the first PDCCH transmission, that is, the first symbol interval is used as the symbol interval between the starting time domain symbol of the first time domain resource corresponding to the i-th (i>1) PDSCH transmission and the starting time domain symbol of the time domain resource of the i-th PDCCH transmission. For example, the symbol interval between the starting time domain symbol interval of the first time domain resource corresponding to the first PDSCH transmission and the starting time domain symbol of the time domain resource of the first PDCCH transmission is 2, then the symbol interval between the starting time domain symbol of the first time domain resource corresponding to the subsequent i-th (i>1) PDSCH transmission and the starting time domain symbol of the time domain resource of the i-th PDCCH transmission is also 2. In this way, the starting time domain symbol of the first time domain resource corresponding to the i-th PDSCH transmission can be determined based on the starting time domain symbol of the time domain resource of the i-th PDCCH transmission and the symbol interval 2.

[0300] Alternatively, it can also be determined by the second symbol interval and the end time domain symbol of the time domain resource of the i-th PDCCH transmission, the second symbol interval is the symbol interval between the starting time domain symbol of the first time domain resource corresponding to the first PDSCH transmission and the end time domain symbol of the time domain resource of the first PDCCH transmission, that is, the second symbol interval is used as the symbol interval between the starting time domain symbol of the first time domain resource corresponding to the i-th (i>1) PDSCH transmission and the end time domain symbol of the time domain resource of the i-th PDCCH transmission. The second symbol interval can reflect the symbol interval after the end time domain symbol of the time domain resource of the i-th PDCCH transmission from the starting time domain symbol of the first time domain resource corresponding to the i-th PDSCH transmission.

[0301] In this case, PDCCH indicates the number of time domain symbols of the time domain resource where PDSCH is located. For example, it can indicate the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission. Please refer to the first optional implementation method for details, which will not be repeated here.

[0302] A third optional implementation method may use PDCCH to indicate the starting time domain symbol and the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission. The terminal device calculates the starting time domain symbol and the number of time domain symbols contained in the first time domain resources corresponding to the remaining PDSCH transmissions. For example, the starting time domain symbol of the first time domain resource corresponding to the i-th (i>1)th PDSCH transmission is the next time domain symbol after the end time domain symbol of the first time domain resource corresponding to the i-1th PDSCH transmission, or the starting time domain symbol of the first time domain resource corresponding to the i-1th PDSCH transmission is the time domain symbol corresponding to the starting time domain symbol or the end time domain symbol of the first time domain resource corresponding to the i-1th PDSCH transmission after being offset by X time domain symbols. The number of time domain symbols contained in the first time domain resource corresponding to the i-th (i>1)th PDSCH transmission is equal to the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission.

[0303] In this case, PDCCH indicates the number of time domain symbols of the time domain resource where PDSCH is located. For example, it can indicate the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission. Please refer to the first optional implementation method for details, which will not be repeated here.

[0304] If adopted Figure 6The PDCCH and PDSCH are transmitted in the manner shown. The following describes several optional implementations of how to determine the first time domain resource corresponding to the i-th PDSCH transmission (if the first time domain resource is the entire set of the first time domain range, please refer to the description of the previous embodiment. The following optional implementations mainly describe how to determine the first time domain resource when the first time domain resource is a subset of the first time domain range):

[0305] A first optional implementation manner is to use the starting time domain symbol of the first time domain range corresponding to the determined i-th PDSCH transmission as the starting time domain symbol of the first time domain resource corresponding to the i-th PDSCH transmission. In this case, the network device may not indicate the starting time domain symbol of the time domain resource corresponding to the PDSCH transmission through the PDCCH, but may indicate the number of time domain symbols contained in the first time domain resource corresponding to the PDSCH transmission. For example, the PDCCH indicates the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission, and the protocol may stipulate that the number of time domain symbols contained in the first time domain resource corresponding to each PDSCH transmission is equal, so that the terminal device can obtain the number of time domain symbols contained in the first time domain resource corresponding to each PDSCH transmission. It can be understood that the number of time domain symbols contained in the first time domain resource corresponding to each PDSCH transmission may also be different, for example, it may be an integer multiple of the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission, or the number of time domain symbols contained in the first time domain resource corresponding to the first PDSCH transmission plus an integer. The integer may be a default value specified by the protocol, or a value reported by the terminal device to the network device through a capability reporting process, or may be indicated to the terminal device by RRC signaling, MAC CE signaling, or DCI signaling.

[0306] A second optional implementation method uses PDCCH to indicate the starting time domain symbol of the first time domain resource corresponding to the first PDSCH transmission and the number of time domain symbols contained therein. The terminal device calculates the starting time domain symbol of the first time domain resource corresponding to each of the remaining PDSCH transmissions and the number of time domain symbols contained therein. For example, the starting time domain symbol of the first time domain resource corresponding to the i-th (i>1)th PDSCH transmission is the next time domain symbol after the ending time domain symbol of the first time domain resource corresponding to the i-1th PDSCH transmission, or the starting time domain symbol of the first time domain resource corresponding to the i-1th (i>1)th PDSCH transmission is the starting time domain symbol of the first time domain resource corresponding to the i-1th PDSCH transmission or the time domain symbol after the starting time domain symbol or the ending time domain symbol of the first time domain resource is offset by X time domain symbols, where X is an integer greater than or equal to 1.

[0307] Among them, the number of time domain symbols contained in the first time domain resources corresponding to each PDSCH transmission can be the same or different. For details, please refer to the first optional implementation method, which will not be repeated here.

[0308] The above-mentioned Figure 5 and Figure 6 The exemplary explanation of how to determine the first time domain resource from the first time domain range does not constitute a limitation of the embodiments of the present application.

[0309] Optionally, the first frequency domain resources corresponding to the ith PDSCH transmission may be determined from the frequency domain resource allocation field in the PDCCH. The first frequency domain resources corresponding to the ith PDSCH transmission is a subset or the entire set of the first frequency domain range determined to correspond to the ith PDSCH transmission.

[0310] After determining the first time domain resources and the first frequency domain resources actually used for the i-th PDSCH transmission, the content of the i-th PDSCH transmission can be received from the time-frequency resources determined by the first time domain resources and the first frequency domain resources. Specifically, optionally, the transmission parameters used for the i-th PDSCH transmission can be obtained from the PDCCH to determine the time-frequency resources, modulation and coding schemes, etc. actually used for each PDSCH transmission. Then, according to the transmission parameters, the signals on the time-frequency resources actually used for each PDSCH transmission are demodulated and decoded to obtain the data carried by each PDSCH. The same or different RV versions of the same data are transmitted on each PDSCH. The terminal device can combine and decode these RV versions to complete highly reliable data transmission.

[0311] Among them, the above Figure 5 Description of the embodiments and Figure 6 The descriptions of the embodiments may be referenced to each other, and are not limited to the embodiments of the present application.

[0312] Corresponding to the method provided in the above method embodiment, the embodiment of the present application further provides a corresponding communication device, which includes a module for executing the corresponding module of the above embodiment. The module can be software, hardware, or a combination of software and hardware.

[0313] See Figure 7 , is a structural diagram of a communication device provided in an embodiment of the present application. Figure 7 The communication device 700 shown may include a transceiver unit 701 and a processing unit 702. The transceiver unit 701 may include a transmitting unit and a receiving unit. The transmitting unit is used to implement a transmitting function, and the receiving unit is used to implement a receiving function. The transceiver unit 701 may implement the transmitting function and / or the receiving function. The transceiver unit may also be described as a communication unit.

[0314] The communication device 700 may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with the terminal device.

[0315] In one design, the processing unit 702 is configured to determine, based on time domain resource information of a physical downlink control channel, a first time domain range corresponding to an i-th physical downlink shared channel transmission, where the physical downlink control channel is used to schedule the physical downlink shared channel, the i-th physical downlink shared channel transmission being one of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N.

[0316] The transceiver unit 701 is configured to receive content corresponding to the i-th physical downlink shared channel transmission according to the first time domain range.

[0317] The communication device 700 may also be a network device, a device in a network device, or a device that can be used in conjunction with a network device.

[0318] In one design, the transceiver unit 701 is used to use a first time domain resource to perform the i-th physical downlink shared channel transmission, the first time domain resource is a subset or a full set of a first time domain range corresponding to the i-th physical downlink shared channel transmission, the first time domain range is determined by the time domain resource information of a physical downlink control channel, the physical downlink control channel is used to schedule the physical downlink shared channel, the i-th physical downlink shared channel transmission is one of N repeated transmissions, and N is an integer greater than or equal to 2.

[0319] Please refer to the description of the method embodiment for details, which will not be repeated here.

[0320] Figure 8 A schematic diagram of the structure of a communication device is provided. The communication device 800 can be a network device or a terminal device, or a chip, chip system, or processor that supports the network device to implement the above-mentioned method, or a chip, chip system, or processor that supports the terminal device to implement 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.

[0321] The communication device 800 may include one or more processors 801. The 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 a communication device (e.g., a base station, a baseband chip, a terminal, a terminal chip, a DU or a CU), execute software programs, and process data in the software programs.

[0322] Optionally, the communication device 800 may include one or more memories 802, on which computer programs or instructions 804 may be stored. The instructions may be executed on the processor 801, causing the device 800 to perform the method described in the above method embodiment. Optionally, the memory 802 may also store data. The processor 801 and memory 802 may be provided separately or integrated together.

[0323] Optionally, the communication device 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 805 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.

[0324] The communication device 800 is a terminal device: the processor 801 is used to execute Figure 3 Step 302 in the above. The transceiver 805 is used to perform Figure 3 Step 303 in .

[0325] The communication device 800 is a network device: the transceiver 805 is used to perform Figure 3 Step 301 in .

[0326] In another optional design, processor 801 may include or be connected to 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 the transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0327] In another possible design, processor 801 may optionally store a computer program or instruction 803. The computer program or instruction 803, when executed on processor 801, may cause apparatus 800 to perform the method described in the above method embodiment. The computer program or instruction 803 may be fixed in processor 801. In this case, processor 801 may be implemented by hardware.

[0328] In another possible design, the communication device 800 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application 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 channelmetal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0329] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited thereto. Figure 8 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0330] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0331] (2) A set of one or more ICs, optionally including a storage component for storing data and instructions;

[0332] (3) ASIC, such as modem (MSM);

[0333] (4) Modules that can be embedded in other devices;

[0334] (5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0335] (6)Others, etc.

[0336] For the case where the communication device may be a chip or a chip system, see Figure 9 Schematic diagram of the chip structure shown. Figure 9 The chip 900 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.

[0337] In the case where the chip is used to implement the functions of the terminal device in the embodiments of the present application: Interface 902 is configured to receive signals within a first time domain range corresponding to the i-th physical downlink shared channel transmission. Processor 901 is configured to process the signals within the first time domain range, for example, determining a first time domain resource corresponding to the i-th physical downlink shared channel transmission, and processing the signals on the first time domain resource to obtain content corresponding to the i-th physical downlink shared channel transmission. Interface 902 is also configured to output uplink information or uplink signals.

[0338] Optionally, the chip further includes a memory 903, which is used to store program instructions and data necessary for the terminal device.

[0339] In the case where the chip is used to implement the functions of the network device in the embodiments of the present application: the interface 902 is configured to use first time domain resources for the i-th physical downlink shared channel transmission, where the first time domain resources are a subset or the entire set of a first time domain range corresponding to the i-th physical downlink shared channel transmission. The processor 901 is configured to determine, based on time domain resource information of the physical downlink control channel, the first time domain range within which the i-th physical downlink shared channel transmission is located.

[0340] Optionally, the chip further includes a memory 903, which is used to store program instructions and data necessary for the network device.

[0341] Figure 10 A schematic diagram of the structure of a terminal device is provided. For ease of explanation, Figure 10 Only the main components of the terminal device are shown. Figure 10 As shown, the terminal device 1000 includes a processor, a memory, a control circuit, an antenna, and input / output devices. The processor is mainly used to process communication protocols and communication data, as well as to control the entire terminal, execute software programs, and process software program data. The memory is mainly used to store software programs and data. The control circuit may include a radio frequency circuit, which is mainly used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input / output devices, such as a touch screen, a display screen, a keyboard, etc., are mainly used to receive data input by the user and output data to the user.

[0342] When the terminal device is powered on, the processor reads the software program from the storage unit, parses and executes the software program's instructions, and processes the software program's data. When transmitting data wirelessly, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit processes the baseband signal to obtain an RF signal and transmits the RF signal to the outside in the form of electromagnetic waves via the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal via the antenna, which is further converted into a baseband signal and output to the processor. The processor converts the baseband signal into data and processes the data.

[0343] For ease of explanation, Figure 10 Only one memory and processor are shown. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiments of the present application.

[0344] As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal device, execute software programs, and process software program data. Figure 10 The processor in the embodiment integrates the functions of the baseband processor and the central processing unit. Those skilled in the art will appreciate that the baseband processor and the central processing unit may also be independent processors interconnected through technologies such as buses. Those skilled in the art will appreciate that a terminal device may include multiple baseband processors to adapt to different network standards, and a terminal device may include multiple central processing units to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built into the processor, or may be stored in a storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

[0345] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are 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 the described functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0346] The present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer-readable storage medium is executed by a computer, the functions of any of the above method embodiments are realized.

[0347] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0348] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0349] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0350] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, 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 can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can 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.

[0351] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0352] 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. Professional and technical personnel 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 application.

[0353] 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.

[0354] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A physical downlink shared channel transmission method, characterized in that: include: Determining, according to time domain resource information of a physical downlink control channel, a first time domain range corresponding to an i-th physical downlink shared channel transmission, where the physical downlink control channel is used to schedule the physical downlink shared channel, and the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N; Receiving a signal within a first time domain range corresponding to the i-th physical downlink shared channel transmission; Determine a first time domain resource corresponding to the i-th physical downlink shared channel transmission from the first time domain range, and obtain content corresponding to the i-th physical downlink shared channel transmission from the first time domain resource based on a signal within the first time domain range corresponding to the i-th physical downlink shared channel transmission.

2. The method according to claim 1, wherein The transmission configuration indication-state TCI-state used by the i-th physical downlink shared channel transmission is the same as the TCI-state used by the i-th physical downlink control channel transmission, and the i-th physical downlink control channel transmission is one of the M repeated transmissions of the physical downlink control channel, where M is an integer greater than or equal to 2.

3. The method according to claim 2, wherein The K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states activated by a control resource set corresponding to the physical downlink control channel; or, The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states activated by the K control resource sets corresponding to the physical downlink control channel, where one control resource set corresponds to one activated TCI-state; Wherein, K is an integer greater than or equal to 1.

4. The method according to any one of claims 1 to 3, wherein The time domain resource information of the physical downlink control channel includes the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the (i+1)-th physical downlink control channel transmission.

5. The method according to claim 4, wherein The first time domain range is determined by a start time domain symbol and an end time domain symbol; or, The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a starting time domain symbol, an ending time domain symbol, and the number of time domain symbols included in the first time domain range; The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1; The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

6. The method according to any one of claims 1 to 3, wherein: The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; If i is equal to 1, the starting time domain symbol is the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the M-th physical downlink control channel transmission shifted backward by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the time slot next to the time slot in which the M-th physical downlink control channel transmission is located, where X is an integer greater than or equal to 1; wherein the M-th physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel; or, If i is greater than 1, the starting time domain symbol is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the i-1th physical downlink shared channel transmission, and is the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

7. The method according to any one of claims 1 to 3, wherein: The first time domain resources are a subset or the entire set of the first time domain range.

8. The method according to claim 7, wherein If the first time domain resource is a subset of the first time domain range, The first time domain resource is determined by a starting time domain symbol of the first time domain resource and the number of time domain symbols included in the first time domain resource. The number of time domain symbols included in the first time domain resource is obtained according to the physical downlink control channel.

9. The method according to claim 8, wherein The starting time domain symbol of the first time domain resource is the starting time domain symbol of the first time domain range; or, is calculated based on the starting time domain symbol of the first physical downlink shared channel transmission; or, is obtained according to a first symbol interval and a starting time domain symbol of an i-th physical downlink control channel transmission, where the first symbol interval is a symbol interval between a starting time domain symbol of a first physical downlink control channel transmission and a starting time domain symbol of a first physical downlink shared channel transmission; or is obtained according to the second symbol interval and the cutoff time domain symbol of the i-th physical downlink control channel transmission, where the second symbol interval is the symbol interval between the start time domain symbol of the first physical downlink control channel transmission and the cutoff time domain symbol of the first physical downlink shared channel transmission; The starting time domain symbol of the first physical downlink shared channel transmission is obtained from the physical downlink control channel.

10. A physical downlink shared channel transmission method, characterized in that: include: A first time domain resource is used for the i-th physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the i-th physical downlink shared channel transmission, the first time domain range is determined by time domain resource information of a physical downlink control channel, the physical downlink control channel is used to schedule the physical downlink shared channel, the i-th physical downlink shared channel transmission is one of N repeated transmissions, where N is an integer greater than or equal to 2, and the signal within the first time domain range corresponding to the i-th physical downlink shared channel transmission is used to obtain content corresponding to the i-th physical downlink shared channel transmission on the first time domain resource.

11. The method according to claim 10, wherein The TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission, and the i-th physical downlink control channel transmission is one of the M repeated transmissions of the physical downlink control channel, where M is an integer greater than or equal to 2, and M is equal to N.

12. The method according to claim 11, wherein The K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states associated with a control resource set corresponding to the physical downlink control channel; or The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states associated with the K control resource sets corresponding to the physical downlink control channel, where one control resource set is used to associate with one TCI-state; Wherein, K is greater than or equal to 1.

13. The method according to any one of claims 10 to 12, wherein: The time domain resource information of the physical downlink control channel includes the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the (i+1)-th physical downlink control channel transmission.

14. The method according to claim 13, wherein The first time domain range is determined by a start time domain symbol and an end time domain symbol; or, The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a starting time domain symbol, an ending time domain symbol, and the number of time domain symbols included in the first time domain range; The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1; The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

15. The method according to any one of claims 10 to 12, wherein: The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; If i is equal to 1, the starting time domain symbol is the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the M-th physical downlink control channel transmission shifted backward by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the time slot next to the time slot in which the M-th physical downlink control channel transmission is located, where X is an integer greater than or equal to 1; wherein the M-th physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel; or, If i is greater than 1, the starting time domain symbol is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the i-1th physical downlink shared channel transmission, and is the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

16. A communication device, characterized in that: including a processing unit and a transceiver unit; The processing unit is configured to determine, based on time domain resource information of a physical downlink control channel, a first time domain range corresponding to an i-th physical downlink shared channel transmission, where the physical downlink control channel is used to schedule the physical downlink shared channel, and the i-th physical downlink shared channel transmission is one of N repeated transmissions of the physical downlink shared channel, where N is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to N; The transceiver unit is configured to receive a signal within a first time domain corresponding to the i-th physical downlink shared channel transmission; Determine a first time domain resource corresponding to the i-th physical downlink shared channel transmission from the first time domain range, and obtain content corresponding to the i-th physical downlink shared channel transmission from the first time domain resource based on a signal within the first time domain range corresponding to the i-th physical downlink shared channel transmission.

17. The communication device according to claim 16, wherein: The transmission configuration indication-state TCI-state used by the i-th physical downlink shared channel transmission is the same as the TCI-state used by the i-th physical downlink control channel transmission, and the i-th physical downlink control channel transmission is one of the M repeated transmissions of the physical downlink control channel, where M is an integer greater than or equal to 2.

18. The communication device according to claim 17, wherein: The K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states activated by a control resource set corresponding to the physical downlink control channel; or, The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states activated by the K control resource sets corresponding to the physical downlink control channel, where one control resource set corresponds to one activated TCI-state; Wherein, K is an integer greater than or equal to 1.

19. The communication device according to any one of claims 16 to 18, wherein: The time domain resource information of the physical downlink control channel includes the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the (i+1)-th physical downlink control channel transmission.

20. The communication device according to claim 19, wherein The first time domain range is determined by a start time domain symbol and an end time domain symbol; or, The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a starting time domain symbol, an ending time domain symbol, and the number of time domain symbols included in the first time domain range; The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1; The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

21. The communication device according to any one of claims 16 to 18, wherein: The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; If i is equal to 1, the starting time domain symbol is the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the M-th physical downlink control channel transmission shifted backward by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the time slot next to the time slot in which the M-th physical downlink control channel transmission is located, where X is an integer greater than or equal to 1; wherein the M-th physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel; or, If i is greater than 1, the starting time domain symbol is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the i-1th physical downlink shared channel transmission, and is the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

22. The communication device according to any one of claims 16 to 18, wherein: The first time domain resources are a subset or the entire set of the first time domain range.

23. The communication device according to claim 22, wherein: If the first time domain resource is a subset of the first time domain range, The first time domain resource is determined by a starting time domain symbol of the first time domain resource and the number of time domain symbols included in the first time domain resource. The number of time domain symbols included in the first time domain resource is obtained according to the physical downlink control channel.

24. The communication device according to claim 23, wherein: The starting time domain symbol of the first time domain resource is the starting time domain symbol of the first time domain range; or, is calculated based on the starting time domain symbol of the first physical downlink shared channel transmission; or, is obtained according to a first symbol interval and a starting time domain symbol of an i-th physical downlink control channel transmission, where the first symbol interval is a symbol interval between a starting time domain symbol of a first physical downlink control channel transmission and a starting time domain symbol of a first physical downlink shared channel transmission; or is obtained according to the second symbol interval and the cutoff time domain symbol of the i-th physical downlink control channel transmission, where the second symbol interval is the symbol interval between the start time domain symbol of the first physical downlink control channel transmission and the cutoff time domain symbol of the first physical downlink shared channel transmission; The starting time domain symbol of the first physical downlink shared channel transmission is obtained from the physical downlink control channel.

25. A communication device, characterized in that: Including transceiver unit, The transceiver unit is configured to use a first time domain resource to perform an i-th physical downlink shared channel transmission, where the first time domain resource is a subset or the entire set of a first time domain range corresponding to the i-th physical downlink shared channel transmission, the first time domain range being determined by time domain resource information of a physical downlink control channel, the physical downlink control channel being used to schedule the physical downlink shared channel, the i-th physical downlink shared channel transmission being one of N repeated transmissions, where N is an integer greater than or equal to 2, and the signal within the first time domain range corresponding to the i-th physical downlink shared channel transmission being used to obtain content corresponding to the i-th physical downlink shared channel transmission on the first time domain resource.

26. The communication device according to claim 25, wherein The TCI-state used for the i-th physical downlink shared channel transmission is the same as the TCI-state used for the i-th physical downlink control channel transmission, and the i-th physical downlink control channel transmission is one of the M repeated transmissions of the physical downlink control channel, where M is an integer greater than or equal to 2, and M is equal to N.

27. The communication device according to claim 26, wherein: The K TCI-states used in the M repeated transmissions of the physical downlink control channel are the K TCI-states associated with a control resource set corresponding to the physical downlink control channel; or The K TCI-states used in the M repeated transmissions of the physical downlink control channel are K TCI-states associated with the K control resource sets corresponding to the physical downlink control channel, where one control resource set is used to associate with one TCI-state; Wherein, K is greater than or equal to 1.

28. The communication device according to any one of claims 25 to 27, wherein: The time domain resource information of the physical downlink control channel includes the time domain resource information of the i-th physical downlink control channel transmission and / or the time domain resource information of the (i+1)-th physical downlink control channel transmission.

29. The communication device according to claim 28, wherein The first time domain range is determined by a start time domain symbol and an end time domain symbol; or, The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a cutoff time domain symbol and the number of time domain symbols included in the first time domain range; or, The first time domain range is determined by a starting time domain symbol, an ending time domain symbol, and the number of time domain symbols included in the first time domain range; The starting time domain symbol is the first time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel, or the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource transmitted by the i-th physical downlink control channel shifted backward by X time domain symbols, where X is an integer greater than or equal to 1; The cutoff time domain symbol is a symbol corresponding to the first time domain symbol of the time domain resource of the (i+1)th physical downlink control channel transmission shifted forward by Y time domain symbols, where Y is an integer greater than or equal to 1.

30. The communication device according to any one of claims 25 to 27, wherein: The first time domain range is determined by a starting time domain symbol and the number of time domain symbols included in the first time domain range; If i is equal to 1, the starting time domain symbol is the symbol corresponding to the first time domain symbol or the last time domain symbol of the time domain resource of the M-th physical downlink control channel transmission shifted backward by X time domain symbols; or, it is the first time domain symbol or the fourth time domain symbol of the time slot next to the time slot in which the M-th physical downlink control channel transmission is located, where X is an integer greater than or equal to 1; wherein the M-th physical downlink control channel transmission is the last of the M repeated transmissions of the physical downlink control channel; or, If i is greater than 1, the starting time domain symbol is the first time domain symbol or the last time domain symbol of the time domain range corresponding to the i-1th physical downlink shared channel transmission, and is the symbol corresponding to the symbol offset backward by X time domain symbols, where X is an integer greater than or equal to 1.

31. A communication device, characterized in that: include: A processor, when the processor calls a computer program or instruction in a memory, the method according to any one of claims 1 to 9 or claims 10 to 15 is executed.

32. A communication device, characterized in that: include: memory and processor; The memory is used to store computer programs or instructions. When the processor calls the computer program or instructions in the memory, the communication device executes the method according to any one of claims 1 to 9 or claims 10 to 15.

33. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a computer program or instructions. When the computer program or instructions are run on a computer, the computer is caused to perform the method according to any one of claims 1 to 9 or claims 10 to 15.

34. A communication device, characterized in that: Includes processor, memory and transceiver; The transceiver is used to receive or send signals; The memory is used to store program code; The processor is configured to call the program code from the memory to execute the method according to any one of claims 1 to 9 or claims 10 to 15.

35. A computer program product, characterized in that The computer program product comprises a computer program or instructions, and when the computer program or instructions are run on a computer, the computer is caused to perform the method according to any one of claims 1 to 9 or claims 10 to 15.

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