A method, apparatus and medium for receiving and transmitting a physical downlink shared channel

Abstract

The present disclosure provides a method, device and medium for receiving and sending a physical downlink shared channel, the method comprising: determining a PDSCH receiving mode; wherein the PDSCH receiving mode is a first mode or a second mode; the first mode corresponds to that, after a user equipment listens to control indication information including a COT ending position, the user equipment receives a PDSCH located before the COT ending position and does not receive a PDSCH located after the COT ending position; the second mode corresponds to that, after the user equipment listens to the control indication information including the COT ending position, the user equipment receives the PDSCH located before the COT ending position and receives the PDSCH located after the COT ending position; listening to and receiving a downlink control information; and receiving a PDSCH in the PDSCH receiving mode. In the present disclosure, two different modes are provided for the user equipment to process the PDSCH located after the COT ending position, and more optional solutions are provided for the user equipment, so that the user equipment can select a corresponding PDSCH receiving mode according to different use requirements, thereby efficiently receiving the PDSCH.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and particularly relates to a method, device and medium for receiving and sending a physical downlink shared channel. BACKGROUND

[0002] In 5G new radio (NR), downlink data is carried on a physical downlink shared channel (PDSCH), and uplink data is carried on a physical uplink shared channel (PUSCH). A base station device schedules the PDSCH and the PUSCH through downlink control information (DCI) carried on a physical downlink control channel (PDCCH).

[0003] To reduce the DCI overhead, one DCI can schedule at least one PDSCH. In the 52.6-71 GHz frequency band of NR, multi-slot PDSCH scheduling is configured to realize that one DCI schedules multiple PDSCHs. The way of configuring multi-slot PDSCH scheduling can be to configure a table containing multiple time domain resource allocation (TDRA) elements. The base station device points to the corresponding TDRA element through the DCI, and the TDRA element can represent the number of PDSCHs scheduled.

[0004] In multi-slot PDSCH scheduling, when the transmission duration of the PDSCH exceeds the end position of the channel occupancy time (COT) configured by the base station, how to effectively receive the PDSCH is a problem to be solved. SUMMARY

[0005] Therefore, the present disclosure provides a method, device and medium for receiving and sending a physical downlink shared channel.

[0006] According to a first aspect of the embodiments of the present disclosure, a method for receiving a physical downlink shared channel is provided, and the method is executed by a user equipment, and the method comprises the following steps.

[0007] determining a physical downlink shared channel (PDSCH) receiving mode, wherein the PDSCH receiving mode is a first mode or a second mode;

[0008] The first mode corresponds to that after the user equipment listens to the control indication information including the COT ending position, the PDSCH located before the COT ending position is received, and the PDSCH located after the COT ending position is not received.

[0009] The second mode corresponds to that after the user equipment listens to the control indication information including the COT ending position, the PDSCH located before the COT ending position is received, and the PDSCH located after the COT ending position is received.

[0010] listening to and receiving downlink control information, wherein the downlink control information includes information for indicating the COT ending position;

[0011] receiving the PDSCH in the determined PDSCH receiving mode.

[0012] By using the method, two different PDSCH receiving modes are set, thereby providing two different modes for the user equipment to process the PDSCH located after the COT ending position, providing more optional schemes for the user equipment, so that the user equipment can select the corresponding PDSCH receiving mode according to different use requirements, thereby efficiently receiving the PDSCH.

[0013] In a possible implementation, the determining of the PDSCH receiving mode comprises:

[0014] determining the PDSCH receiving mode based on a protocol.

[0015] In a possible implementation, the determining of the PDSCH receiving mode comprises:

[0016] receiving first indication information from a network device, wherein the first indication information is used to indicate that the PDSCH receiving mode is the first mode or the second mode.

[0017] In a possible implementation, the method further comprises:

[0018] determining a resource of a physical uplink control channel (PUCCH) used for sending HARQ feedback information according to a time domain position of a last PDSCH, wherein the last PDSCH includes a last PDSCH located after the COT ending position and not received.

[0019] In a possible implementation, the method further comprises:

[0020] determining a corresponding HARQ process identifier occupied by each PDSCH located after the COT ending position which is not received.

[0021] In a possible implementation, the PDSCH located before the COT ending position does not include a part of a cross-zone PDSCH located before the COT ending position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT ending position, and an ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0022] In a possible implementation, the PDSCH located before the COT ending position includes a part of a cross-zone PDSCH located before the COT ending position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT ending position, and an ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0023] In a possible implementation, the PDSCH located before the COT ending position includes a part of a cross-zone PDSCH located before the COT ending position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT ending position, and an ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0024] According to a second aspect of the embodiments of the present disclosure, a method for transmitting a physical downlink shared channel is provided, the method is performed by a network device, and the method comprises the following steps.

[0025] sending first indication information to a user equipment, wherein the first indication information is used to indicate that a PDSCH receiving mode is a first mode, or the PDSCH receiving mode is a second mode;

[0026] sending downlink control information, wherein the downlink control information comprises information used to indicate a COT ending position;

[0027] sending a PDSCH;

[0028] wherein,

[0029] the first mode corresponds to that, after the user equipment listens to control indication information comprising the COT ending position, the user equipment receives a PDSCH located before the COT ending position, and does not receive a PDSCH located after the COT ending position;

[0030] the second mode corresponds to that, after the user equipment listens to control indication information comprising the COT ending position, the user equipment receives a PDSCH located before the COT ending position, and receives a PDSCH located after the COT ending position.

[0031] By using the method, two different PDSCH receiving modes are set, thereby providing two different modes for the user equipment to process the PDSCH located after the COT ending position, indicating the PDSCH receiving mode meeting the use demand of the user equipment to the user equipment, and enabling the user equipment to efficiently receive the PDSCH.

[0032] In a possible implementation, the PDSCH located before the COT ending position does not include a part of a cross-zone PDSCH located before the COT ending position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT ending position, and an ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0033] In a possible implementation, the PDSCH located before the COT ending position includes a part of a cross-zone PDSCH located before the COT ending position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT ending position, and an ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0034] In a possible implementation, the PDSCH located after the COT ending position includes a part of a cross-zone PDSCH located after the COT ending position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT ending position, and an ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0035] According to a third aspect of the embodiments of the present disclosure, a communication apparatus is provided. The communication apparatus can be used to execute the steps performed by the user equipment in the first aspect or any possible implementation of the first aspect. The user equipment can implement the functions in the above methods by means of hardware structure, software module, or hardware structure plus software module.

[0036] When the communication apparatus in the third aspect is implemented by means of software module, the communication apparatus can include a processing module and a transceiver module coupled with each other, wherein the processing module can be used for the communication apparatus to perform processing operations, such as generating information / messages to be sent, or processing received signals to obtain information / messages, and the transceiver module can be used for the communication apparatus to support communication.

[0037] In the execution of the steps of the first aspect, the processing module is configured to determine a physical downlink shared channel (PDSCH) receiving mode, and listen to and receive downlink control information; the PDSCH receiving mode is a first mode or a second mode; the first mode corresponds to that, after the user equipment listens to the control indication information including the COT end position, the user equipment receives the PDSCH located before the COT end position and does not receive the PDSCH located after the COT end position; the second mode corresponds to that, after the user equipment listens to the control indication information including the COT end position, the user equipment receives the PDSCH located before the COT end position and receives the PDSCH located after the COT end position; and the downlink control information includes information for indicating the COT end position. The transceiver module is configured to receive the PDSCH in the determined PDSCH receiving mode.

[0038] According to a fourth aspect of the embodiments of the present disclosure, a communication apparatus is provided. The communication apparatus can be configured to perform the steps performed by the network device in the second aspect or any possible implementation of the second aspect. The network device can implement each function in the above methods by means of a hardware structure, a software module, or a combination of the hardware structure and the software module.

[0039] In the implementation of the communication apparatus in the fourth aspect by means of the software module, the communication apparatus can include a transceiver module, where the transceiver module can be configured to support the communication apparatus to communicate.

[0040] In the execution of the steps of the second aspect, the transceiver module is configured to send first indication information to the user equipment, send downlink control information, and send a PDSCH.

[0041] The first indication information is used to indicate that the PDSCH receiving mode is the first mode, or the PDSCH receiving mode is the second mode.

[0042] The downlink control information includes information for indicating the COT end position.

[0043] The first mode corresponds to that, after the user equipment listens to the control indication information including the COT end position, the user equipment receives the PDSCH located before the COT end position and does not receive the PDSCH located after the COT end position.

[0044] The second mode corresponds to that, after the user equipment listens to the control indication information including the COT end position, the user equipment receives the PDSCH located before the COT end position and receives the PDSCH located after the COT end position.

[0045] According to a fifth aspect of the embodiments of the present disclosure, a communication apparatus is provided, including a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the first aspect or any possible implementation of the first aspect.

[0046] According to a sixth aspect of the embodiments of the present disclosure, a communication apparatus is provided, including a processor and a memory; the memory is configured to store a computer program; the processor is configured to execute the computer program to implement the second aspect or any possible implementation of the second aspect.

[0047] According to a seventh aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, which stores instructions (or computer program, program) that, when executed on a computer, cause the computer to execute the first aspect or any possible implementation of the first aspect.

[0048] According to an eighth aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, which stores instructions (or computer program, program) that, when executed on a computer, cause the computer to execute the second aspect or any possible implementation of the second aspect.

[0049] It should be understood that the general description above and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0050] The drawings described herein are intended to provide further understanding of the embodiments of the present disclosure, and constitute a part of the present application. The schematic embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute an improper limitation on the present disclosure. In the drawings:

[0051] The drawings herein are incorporated into the description and constitute a part of the description, show embodiments consistent with the embodiments of the present disclosure, and together with the description are used to explain the principles of the embodiments of the present disclosure.

[0052] Figure 1 is a schematic diagram of a wireless communication system architecture provided by the embodiments of the present disclosure;

[0053] Figure 2 is a schematic diagram of the element composition of TDRA provided by the embodiments of the present disclosure;

[0054] Figure 3 is a flowchart of a method of transmitting a physical downlink shared channel according to an exemplary embodiment;

[0055] Figure 4is a structural diagram of an apparatus for receiving a physical downlink shared channel according to an exemplary embodiment;

[0056] Figure 5 is a structural diagram of another apparatus for receiving a physical downlink shared channel according to an exemplary embodiment;

[0057] Figure 6 is a structural diagram of an apparatus for transmitting a physical downlink shared channel according to an exemplary embodiment;

[0058] Figure 7 is a structural diagram of another apparatus for transmitting a physical downlink shared channel according to an exemplary embodiment. DETAILED DESCRIPTION

[0059] The embodiments of the present disclosure will be further described below with reference to the drawings and specific embodiments.

[0060] The exemplary embodiments will be described in detail below with reference to the drawings. The following description is with reference to the drawings, in which like numerals represent like elements, unless otherwise described, throughout the several drawings. The following exemplary embodiments described in the following detailed description are not meant to be limiting in terms of the scope of the present disclosure. Rather, they are example embodiments consistent with the principles of the present disclosure as detailed in the appended claims.

[0061] As shown in Figure 1 The method for transmitting a physical downlink shared channel provided by the embodiments of the present disclosure can be applied to a wireless communication system 100, which can include a user equipment 101 and a network equipment 102. The user equipment 101 is configured to support carrier aggregation, and the user equipment 101 can be connected to multiple carrier units of the network equipment 102, including a primary carrier unit and one or more secondary carrier units.

[0062] It should be understood that the above wireless communication system 100 can be applied to both low frequency scenarios and high frequency scenarios. The application scenarios of the wireless communication system 100 include, but are not limited to, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a worldwide interoperability for microwave access (WiMAX) communication system, a cloud radio access network (CRAN) system, a future 5th-Generation (5G) system, a new radio (NR) communication system, or a future evolved public land mobile network (PLMN) system, and the like.

[0063] The user equipment 101 shown above can be a user equipment (UE), a terminal, an access terminal, a terminal unit, a terminal station, a mobile station (MS), a remote station, a remote terminal, a mobile terminal, a wireless communication device, a terminal agent, or a user equipment, and the like. The user equipment 101 can have a wireless transceiving function, which can communicate (e.g., wirelessly communicate) with one or more network devices of one or more communication systems and accept network services provided by the network devices, where the network devices include, but are not limited to, the network device 102 shown in the figure.

[0064] The user equipment 101 can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a user equipment in a future 5G network, or a user equipment in a future evolved PLMN network, and the like.

[0065] The network device 102 can be an access network device (or an access network site). The access network device refers to a device that has a network access function, such as a radio access network (RAN) base station and the like. The network device 102 can specifically include a base station (BS), or include a base station and a radio resource management device for controlling the base station, and the like. The network device 102 can also include a relay station (relay device), an access point, and a base station in a future 5G network, a base station in a future evolved PLMN network, or an NR base station, and the like. The network device 102 can be a wearable device or a vehicle-mounted device. The network device 102 can also be a communication chip with a communication module.

[0066] For example, the network device 102 includes, but is not limited to, a next-generation base station (gnodeB, gNB) in 5G, an evolved node B (eNB) in an LTE system, a radio network controller (RNC), a node B (NB) in a WCDMA system, a radio controller under a CRAN system, a base station controller (BSC), a base transceiver station (BTS) in a GSM system or a CDMA system, a home base station (for example, a home evolved node B, or a home node B, HNB), a baseband unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), or a mobile switching center, and the like.

[0067] Figure 2 is a schematic diagram of part of a TDRA element, where the TDRA element can include a row index, a demodulation reference signal position (dmrs-typeA-position), a PDSCH mapping type, k0, and SLIV (including a start indicator S and a length indicator L). In the implementation of the multi-slot PDSCH scheduling process, the network device 102 can configure the network device 102 through a radio resource control (RRC) layer Figure 2 The TDRA element table shown. Where k0 is used to indicate the interval between the slot where the DCI is located and the slot of the allocated PDSCH, and if k0 = 0, the slot where the DCI is located is the same as the slot of the allocated PDSCH.

[0068] Wherein, at least one row of the TDRA element table contains N (N>1) {k0, mapping type, SLIV} combinations, and N is the number of multi-slot PDSCHs. The DCI sent by the network device 102 points to a certain row TDRA element in the TDRA element table, and if the row TDRA element contains N (N>1) {k0, mapping type, SLIV} combinations, the DCI can schedule N PDSCHs.

[0069] In the scenario of NR 52.6-71GHz corresponding to unlicensed spectrum, on the unlicensed spectrum, the maximum channel occupancy time (MCOT) is limited for the channel occupancy of the sending end, and if the COT of a certain sending end ends, the sending end will not be able to send data again. In combination with Figure 2 It can be seen that the number of multi-slot PDSCHs is configured by the RRC layer, and there is a case that the PDSCH transmission time exceeds the COT configured by the base station.

[0070] For example, in the TDRA element table, a certain row TDRA element corresponds to N=8 (corresponding to multi-slot physical downlink shared channel), and the remaining rows correspond to N=1 (corresponding to single-slot physical downlink shared channel). In order to reduce the DCI overhead, the network device 102 selects to schedule 8 PDSCHs with 1 DCI, rather than to schedule a single PDSCH multiple times. However, in this case, one or more of the 8 PDSCHs may exceed the COT end position of the base station.

[0071] Therefore, in the scenario where the PDSCH exceeds the COT end position, the problem of effective transmission of the PDSCH needs to be solved.

[0072] The embodiment of the present disclosure provides a method for transmitting a physical downlink shared channel. Referring to Figure 3 , Figure 3 is a flowchart of a method for transmitting a physical downlink shared channel according to an exemplary embodiment, as Figure 3 shown, the method comprises:

[0073] Step S31, the network device 102 sends first indication information to the user equipment 101, wherein the first indication information is used to indicate that the physical downlink shared channel PDSCH receiving mode is a first mode or a second mode.

[0074] Step S32, the user equipment 101 determines the physical downlink shared channel PDSCH receiving mode; wherein the PDSCH receiving mode is the first mode or the second mode.

[0075] Step S33, the network device 102 sends downlink control information to the user equipment 101; wherein, the downlink control information includes information for indicating the COT ending position.

[0076] Step S34, the user equipment 101 listens to and receives the downlink control information of the network device 102; wherein, the downlink control information includes information for indicating the COT ending position.

[0077] Step S35, the network device 102 sends PDSCH to the user equipment 101.

[0078] Step S36, the user equipment 101 receives the PDSCH sent by the network device 102 in the determined PDSCH receiving mode.

[0079] The first mode corresponds to that the user equipment 101 receives the PDSCH located before the COT ending position and does not receive the PDSCH located after the COT ending position after listening to the control indication information including the COT ending position.

[0080] The second mode corresponds to that the user equipment 101 receives the PDSCH located before the COT ending position and receives the PDSCH located after the COT ending position after listening to the control indication information including the COT ending position.

[0081] In the embodiments of the present disclosure, the user equipment 101 can know the COT ending position through the listening mode. After knowing the COT ending position, the user equipment 101 can receive the PDSCH through the first mode, i.e., receiving the PDSCH located before the COT ending position and stopping receiving the PDSCH beyond the COT ending position; or the user equipment 101 can receive the PDSCH through the second mode, i.e., receiving the PDSCH located before the COT ending position and continuing to receive the PDSCH beyond the COT ending position. Thus, the user equipment 101 can reasonably process the PDSCH part beyond the COT and efficiently process and receive the PDSCH.

[0082] In the method, two different PDSCH receiving modes are set, thereby providing the user equipment with two different modes for processing the PDSCH located after the COT ending position, providing the user equipment with more optional schemes, so that the user equipment can use the corresponding PDSCH receiving mode according to different use requirements, thereby efficiently receiving the PDSCH.

[0083] The embodiments of the present disclosure provide a method for receiving a physical downlink shared channel. The method is executed by the user equipment 101. The method comprises:

[0084] Step S1-1, the user equipment 101 determines a PDSCH receiving mode; wherein the PDSCH receiving mode is a first mode or a second mode.

[0085] The first mode corresponds to that after the user equipment 101 monitors the control indication information including the COT ending position, the PDSCH located before the COT ending position is received, and the PDSCH located after the COT ending position is not received.

[0086] The second mode corresponds to that after the user equipment 101 monitors the control indication information including the COT ending position, the PDSCH located before the COT ending position is received, and the PDSCH located after the COT ending position is received.

[0087] Step S1-2, the user equipment 101 monitors and receives the downlink control information; wherein the downlink control information includes information for indicating the COT ending position.

[0088] Step S1-3, the user equipment 101 receives the PDSCH in the determined PDSCH receiving mode.

[0089] In some possible implementation manners, when the user equipment 101 receives the PDSCH in the first mode, i.e., when the user equipment 101 receives the PDSCH located before the COT ending position and stops receiving the PDSCH beyond the COT ending position, the network equipment 102 does not need to resume the PDSCH beyond the COT ending position, but can reschedule the PDSCH after reoccupying the channel.

[0090] In some possible implementation manners, when the user equipment 101 receives the PDSCH in the second mode, i.e., when the user equipment 101 receives the PDSCH located before the COT ending position and continues to receive the PDSCH beyond the COT ending position, the network equipment 102 needs to initiate channel occupation again to continue to resume the PDSCH beyond the COT ending position as much as possible.

[0091] In a possible implementation manner, the PDSCH located before the COT ending position does not include the part of the cross-zone PDSCH located before the COT ending position, wherein the starting time domain position of the cross-zone PDSCH is located before the COT ending position, and the ending time domain position of the cross-zone PDSCH is located after the COT ending position.

[0092] In an example, 1 DCI schedules 4 PDSCHs, including PDSCH 1, PDSCH 2, PDSCH 3 and PDSCH 4. Among them, PDSCH 1 and PDSCH 2 are completely located before the COT end position, and PDSCH 4 is completely located after the COT end position. PDSCH 3 is a cross-zone PDSCH, that is, PDSCH 3 includes a first part and a second part, the first part is located before the COT end position, and the second part is located after the COT end position.

[0093] In this example, the PDSCH located before the COT end position does not include the first part of PDSCH 3. When the user equipment 101 receives the PDSCH in the first way or the second way, the received PDSCH only includes PDSCH 1 and PDSCH 2, and does not include the first part of PDSCH 3.

[0094] In a possible implementation, the PDSCH located before the COT end position includes the part of the cross-zone PDSCH located before the COT end position, wherein the starting time domain position of the cross-zone PDSCH is located before the COT end position, and the ending time domain position of the cross-zone PDSCH is located after the COT end position.

[0095] In an example, 1 DCI schedules 4 PDSCHs, including PDSCH 1, PDSCH 2, PDSCH 3 and PDSCH 4. Among them, PDSCH 1 and PDSCH 2 are completely located before the COT end position, and PDSCH 4 is completely located after the COT end position. PDSCH 3 is a cross-zone PDSCH, that is, PDSCH 3 includes a first part and a second part, the first part is located before the COT end position, and the second part is located after the COT end position.

[0096] In this example, when the user equipment 101 receives the PDSCH in the first way or the second way, the received PDSCH includes PDSCH 1, PDSCH 2, and the first part of PDSCH 3.

[0097] In a possible implementation, the PDSCH located after the COT end position includes the part of the cross-zone PDSCH located after the COT end position in addition to the non-cross-zone PDSCH after the COT end position, wherein the starting time domain position of the cross-zone PDSCH is located before the COT end position, and the ending time domain position of the cross-zone PDSCH is located after the COT end position.

[0098] In an example, 1 DCI schedules 4 PDSCHs, which are PDSCH 1, PDSCH 2, PDSCH 3 and PDSCH 4 respectively. Among them, PDSCH 1 and PDSCH 2 are completely located before the COT end position, and PDSCH 4 is completely located after the COT end position. PDSCH 3 is a cross-zone PDSCH, that is, PDSCH 3 includes a first part and a second part, the first part is located before the COT end position, and the second part is located after the COT end position.

[0099] In this example, the PDSCH located after the COT end position includes the second part of PDSCH 3 and PDSCH 4.

[0100] Embodiments of the present disclosure provide a method for receiving a physical downlink shared channel, which is executed by a user equipment 101. The method includes steps S1-1, S1-2 and S1-3. In step S1-1, the user equipment 101 determines a PDSCH reception mode, which can include:

[0101] Determining the PDSCH reception mode based on the protocol.

[0102] Embodiments of the present disclosure provide a method for receiving a physical downlink shared channel, which is executed by a user equipment 101. The method includes steps S1-1, S1-2 and S1-3. In step S1-1, the user equipment 101 determines a PDSCH reception mode, which can include:

[0103] Receiving first indication information from a network device 102, wherein the first indication information is used to indicate that the PDSCH reception mode is a first mode or a second mode.

[0104] In the present disclosure, according to the protocol or the indication of the network device 102, the default reception mode of the user equipment 101 can be defined.

[0105] In an example, the default reception mode of the user equipment 101 is the first mode. When there is a scenario that the PDSCH exceeds the COT end position, the user equipment 101 receives the PDSCH by default through the first mode.

[0106] In another example, the default reception mode of the user equipment 101 is the second mode. When there is a scenario that the PDSCH exceeds the COT end position, the user equipment 101 receives the PDSCH by default through the second mode.

[0107] Embodiments of the present disclosure provide a method for receiving a physical downlink shared channel, which is executed by a user equipment 101. The method includes steps S1-1, S1-2 and S1-3, and further includes:

[0108] The resource of the physical uplink control channel (PUCCH) for sending the HARQ feedback information is determined according to the time domain position of the last PDSCH, the last PDSCH including: the last PDSCH located after the end position of the COT and not received.

[0109] In some possible implementations, the user equipment 101 determines the time slot position of the HARQ-ACK PUCCH according to the time domain position of the last PDSCH and the K1 value (characterizing the time slot interval between the PDSCH and the PUCCH) in the DCI, and feeds back the HARQ-ACK information of the PDSCH scheduled by the DCI to the network equipment 102.

[0110] For example, the time domain position of the last PDSCH is time slot n, and the K1 value in the DCI is k, then the time slot position of the HARQ-ACK PUCCH is time slot n+k1.

[0111] In an example, 1 DCI schedules 4 PDSCHs, the 4 PDSCHs including: PDSCH 1, PDSCH 2, PDSCH 3 and PDSCH 4. Among them, PDSCH 1 and PDSCH 2 are completely located before the end position of the COT, and PDSCH 4 is completely located after the end position of the COT. PDSCH 3 is a cross-zone PDSCH, that is, PDSCH 3 includes a first part and a second part, the first part is located before the end position of the COT, and the second part is located after the end position of the COT.

[0112] In this example, the last PDSCH refers to PDSCH 4.

[0113] If the time slot position of PDSCH 4 is n, and the K1 value in the DCI is 1, then the time slot position of the HARQ-ACK PUCCH is n+1.

[0114] In the embodiments of the present disclosure, it is not only applicable to the scenario that the user equipment 101 listens to and receives the downlink control information DCI2-0 (containing the indication information of the end position of the COT); but also applicable to the scenario that the network equipment 102 configures and sends the downlink control information DCI2-0 for the user equipment 101, but the user equipment 101 fails to successfully receive the DCI2-0 due to various reasons (for example, channel depth fading), even if the last PDSCH (such as PDSCH 4) is not sent.

[0115] The embodiments of the present disclosure provide a method for receiving a physical downlink shared channel, which is executed by the user equipment 101. The method includes steps S1-1, S1-2 and S1-3, and further includes:

[0116] determining the HARQ process identifier occupied by each PDSCH not received after the COT end position.

[0117] In some possible embodiments, the user equipment 101 can determine that the PDSCH beyond the COT end position still occupies the corresponding HARQ process ID. If one DCI schedules multiple PDSCHs, the HARQ process identifier (ID) contained in the DCI indicates the HARQ process ID of the first PDSCH scheduled by the DCI, and the HARQ process ID of the subsequent PDSCHs can be sequentially incremented by 1.

[0118] In one example, one DCI schedules four PDSCHs, PDSCH 1, PDSCH 2, PDSCH 3 and PDSCH 4. Among them, PDSCH 1 and PDSCH 2 are completely located before the COT end position, and PDSCH 4 is completely located after the COT end position. PDSCH 3 is a cross-zone PDSCH, that is, PDSCH 3 includes a first part and a second part, the first part is located before the COT end position, and the second part is located after the COT end position.

[0119] If the HARQ process ID of PDSCH 1 is i, the HARQ process ID of PDSCH 2 is i+1, the HARQ process ID of PDSCH 3 is i+2, and the HARQ process ID of PDSCH 4 is i+3.

[0120] Thus, in this example, the user equipment 101 can determine the HARQ process identifier occupied by the PDSCH not received (such as PDSCH 4).

[0121] In the embodiments of the present disclosure, it is not only applicable to the scenario where the user equipment 101 listens to and receives the downlink control information DCI2-0 (containing the indication information of the COT end position), but also applicable to the scenario where the network equipment 102 configures and sends the downlink control information DCI2-0 for the user equipment 101, but the user equipment 101 fails to successfully receive the DCI2-0 due to various reasons (for example, due to channel depth fading), that is, the PDSCH (such as PDSCH 4) beyond the COT end position still occupies the corresponding HARQ process ID, even if the last PDSCH (such as PDSCH 4) is not sent.

[0122] The embodiment of the present disclosure provides a method for sending a physical downlink shared channel, which is executed by the network equipment 102. In this method, the following steps are included:

[0123] Step S2-1, sending first indication information to the user equipment 101, wherein the first indication information is used to indicate that the PDSCH receiving mode is the first mode, or the PDSCH receiving mode is the second mode.

[0124] Step S2-2, sending downlink control information to the user equipment 101; wherein the downlink control information includes information used to indicate the COT end position.

[0125] Step S2-3, sending PDSCH to the user equipment 101.

[0126] The first mode corresponds to that the user equipment 101 receives the PDSCH located before the COT end position and does not receive the PDSCH located after the COT end position after listening to the control indication information including the COT end position.

[0127] The second mode corresponds to that the user equipment 101 receives the PDSCH located before the COT end position and receives the PDSCH located after the COT end position after listening to the control indication information including the COT end position.

[0128] In some possible implementation manners, the downlink control information configured by the network equipment 102 for the user equipment 101 can be denoted as DCI2-0. The information indicating the COT end position is included in the DCI2-0. The information indicating the COT end position in the DCI2-0 can be indicated in a manner of COT duration display indication, or in a manner of implicit indication by the slot format indication (SFI) in the DCI2-0.

[0129] When the network equipment 102 does not configure the DCI2-0, the user equipment 101 can not know the COT end position, and in this case, the user equipment 101 can receive multiple PDSCHs according to the indication of the DCI, without considering whether the COT end position is exceeded.

[0130] In combination of the first mode, the second mode and the manner that the network equipment 102 does not configure the DCI2-0, the network equipment 102 can exist a case that the PDSCH is not actually sent. In the implementation manners in the present disclosure, the network equipment 102 can indicate the PDSCH that is invalidly received by the user equipment 101 through the information carried by the DCI for the PDSCH that is not successfully sent. For example, the user equipment 101 can be indicated by the pre-emption indicator (PI) in the DCI2-1 which part of the PDSCH receiving is invalid.

[0131] In some possible implementation manners, the network device 102 configures and sends the downlink control information DCI 2-0 for the user device 101, but the user device 101 fails to successfully receive the DCI 2-0 due to various reasons (for example, channel depth fading). At this time, the user device 101 still determines the resource of the physical uplink control channel PUCCH for sending the HARQ feedback information according to the time domain position of the last PDSCH, and the last PDSCH includes: the last PDSCH located after the COT end position and not received. The user device 101 can also determine the corresponding HARQ process identifier occupied by each PDSCH located after the COT end position and not received.

[0132] The embodiment of the present disclosure provides a method for sending a physical downlink shared channel, and the method is performed by the network device 102. The method comprises the following steps: step S2-1, step S2-2, step S2-3, and the following steps:

[0133] The PDSCH located before the COT end position does not include the part of the cross-zone PDSCH located before the COT end position, wherein the starting time domain position of the cross-zone PDSCH is located before the COT end position, and the ending time domain position of the cross-zone PDSCH is located after the COT end position.

[0134] The embodiment of the present disclosure provides a method for sending a physical downlink shared channel, and the method is performed by the network device 102. The method comprises the following steps: step S2-1, step S2-2, step S2-3, and the following steps:

[0135] The PDSCH located before the COT end position includes the part of the cross-zone PDSCH located before the COT end position, wherein the starting time domain position of the cross-zone PDSCH is located before the COT end position, and the ending time domain position of the cross-zone PDSCH is located after the COT end position.

[0136] The embodiment of the present disclosure provides a method for sending a physical downlink shared channel, and the method is performed by the network device 102. The method comprises the following steps: step S2-1, step S2-2, step S2-3, and the following steps:

[0137] The PDSCH located after the COT end position includes the part of the cross-zone PDSCH located after the COT end position, wherein the starting time domain position of the cross-zone PDSCH is located before the COT end position, and the ending time domain position of the cross-zone PDSCH is located after the COT end position.

[0138] Based on the same idea as the above method embodiments, the embodiments of the present disclosure also provide a communication device, which can have the functions of the user equipment 101 in the above method embodiments, and is configured to perform the steps performed by the user equipment 101 in the above embodiments. The functions can be implemented by hardware, or by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0139] In a possible implementation, the communication device 400 as shown in Figure 4 may serve as the user equipment 101 involved in the above method embodiments, and perform the steps performed by the user equipment 101 in the above method embodiments. As shown in Figure 4 , the communication device 400 can include a processing module 401 and a transceiver module 402 coupled with each other. The processing module 401 can be configured to perform processing operations of the communication device, such as generating information / messages to be transmitted, or processing received signals to obtain information / messages. The transceiver module 402 can be configured to support the communication device 400 to communicate, and the transceiver module 402 can have a wireless communication function, for example, can perform wireless communication with other communication devices through a wireless air interface.

[0140] In performing the steps performed by the user equipment 101, the processing module 401 is configured to determine a physical downlink shared channel (PDSCH) reception mode, and listen to and receive downlink control information; wherein the PDSCH reception mode is a first mode or a second mode; the first mode corresponds to that after the user equipment listens to control indication information including a COT end position, the user equipment receives PDSCH located before the COT end position, and does not receive PDSCH located after the COT end position; the second mode corresponds to that after the user equipment listens to control indication information including a COT end position, the user equipment receives PDSCH located before the COT end position, and receives PDSCH located after the COT end position; the downlink control information includes information for indicating the COT end position. The transceiver module 402 is configured to receive the PDSCH in the determined PDSCH reception mode.

[0141] When the communication device is the user equipment 101, the structure thereof can also be as shown in Figure 5 . The device 500 can be a mobile phone, a computer, a digital broadcast terminal, a messaging equipment, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0142] Referring to Figure 5 , the device 500 can include one or more of the following components: a processing component 502, a memory 504, a power supply component 506, a multimedia component 508, an audio component 510, an input / output (I / O) interface 512, a sensor component 514, and a communication component 516.

[0143] The processing component 502 generally controls the overall operations of the device 500, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 502 can include one or more processors 520 to execute instructions

[0144] The memory 504 is configured to store various types of data to support operations of the device 500. Examples of such data include instructions for any applications or methods operating on the device 500, contact data, phonebook data, messages, pictures, videos, and so on. The memory 504 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0145] The power component 506 supplies the various components of the device 500 with power. The power component 506 can include a power management system, one or more power supplies, and other components associated with generating, managing and distributing power for the device 500.

[0146] The multimedia component 508 includes a screen providing an output interface between the device 500 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide and a gesture on the touch panel. The touch sensors can not only sense a boundary of a touching or sliding action, but also detect duration and pressure related to the touching or sliding action. In some embodiments, the multimedia component 508 includes a front camera and / or a rear camera. When the device 500 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have a focal length and optical zoom capability.

[0147] The audio component 510 is configured to output and / or input audio signals. For example, the audio component 510 includes a microphone (MIC) that is configured to receive an external audio signal when the device 500 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 504 or transmitted via the communication component 516. In some embodiments, the audio component 510 also includes a speaker for outputting audio signals.

[0148] The I / O interface 512 provides an interface between the processing component 502 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0149] The sensor component 514 includes one or more sensors for providing status assessments of various aspects of the device 500. For example, the sensor component 514 can detect an open / closed position of the device 500, relative positioning of components, such as a display and a keypad of the device 500, a change of position of the device 500 or a component of the device 500, presence or absence of user contact with the device 500, changes in orientation or acceleration / deceleration

[0150] The communication component 516 is configured to facilitate wired or wireless communication between the device 500 and other devices. The device 500 can access a wireless network based on a corresponding communication standard, such as WiFi, 4G, or 5G, or a combination thereof. In an example embodiment, the communication component 516 receives broadcast signals or broadcast-related information from external broadcast management systems via a broadcast channel. In an example embodiment, the communication component 516 also includes a Near Field Communication (NFC) module to promote short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) techniques, infrared data association (IrDA) techniques, ultra-wideband (UWB) techniques, Bluetooth (BT) techniques, and other techniques.

[0151] In an example embodiment, the apparatus 500 can be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic elements for performing the above method.

[0152] Based on the same concept as the above method embodiments, the embodiments of the present disclosure further provide a communication apparatus, which can have the functions of the network device 102 in the above method embodiments and can be used to perform the steps performed by the network device 102 in the above method embodiments. The functions can be implemented by hardware, or by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0153] In a possible implementation manner, the communication apparatus 600 as shown in Figure 6 may serve as the network device 102 involved in the above method embodiments and perform the steps performed by the network device 102 in the above method embodiments. As shown in Figure 6 , the communication apparatus 600 can include a transceiver module 601. The transceiver module 601 can be used to support the communication apparatus 600 to communicate, and the transceiver module 601 can have a wireless communication function, for example, can perform wireless communication with other communication apparatuses through a wireless air interface.

[0154] In performing the steps performed by the network device, the transceiver module 601 is configured to send first indication information to the user equipment 101, send downlink control information, and send a PDSCH; the first indication information is used to indicate that the PDSCH receiving mode is a first mode, or the PDSCH receiving mode is a second mode; the downlink control information includes information used to indicate the COT ending position; the first mode corresponds to that, after the user equipment 101 monitors the control indication information including the COT ending position, the user equipment 101 receives the PDSCH located before the COT ending position and does not receive the PDSCH located after the COT ending position; the second mode corresponds to that, after the user equipment 101 monitors the control indication information including the COT ending position, the user equipment 101 receives the PDSCH located before the COT ending position and receives the PDSCH located after the COT ending position.

[0155] When the communication apparatus is the network device 102, the structure thereof can also be as shown in Figure 7 . The structure of the communication apparatus is illustrated by taking a base station as an example. As shown in Figure 7As shown, the apparatus 700 includes a memory 701, a processor 702, a transceiver component 703, and a power supply component 706. The memory 701 is coupled to the processor 702, and can be used to store program codes and data for implementing various functions of the apparatus 700. The processor 702 is configured to support the apparatus 700 to perform the corresponding functions in the above method, which can be implemented by invoking the program codes stored in the memory 701. The transceiver component 703 can be a wireless transceiver, and can be used to support the apparatus 700 to receive and / or transmit signaling and / or data through a wireless air interface. The transceiver component 703 can also be referred to as a transceiver unit or a communication unit. The transceiver component 703 can include a radio frequency component 704, which can be a remote radio unit (RRU) and can be specifically used for radio frequency signal transmission and conversion between radio frequency signals and baseband signals. The transceiver component 703 can also include one or more antennas 705, which can be specifically used for radiation and reception of radio frequency signals.

[0156] When the apparatus 700 needs to transmit data, the processor 702 can perform baseband processing on the data to be transmitted, and output a baseband signal to the radio frequency unit. The radio frequency unit performs radio frequency processing on the baseband signal, and transmits a radio frequency signal in the form of an electromagnetic wave through the antenna. When data is transmitted to the apparatus 700, the radio frequency unit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 702. The processor 702 converts the baseband signal into data and processes the data.

[0157] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the present disclosure being indicated by the following claims.

[0158] It should be understood that the present disclosure is not limited to the precise structures as set forth above and shown in the attached drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0159] Industrial Applicability

[0160] Two different PDSCH receiving modes are set, so as to provide two different modes for the user equipment to process the PDSCH located after the COT end position, provide more optional schemes for the user equipment, and enable the user equipment to select the corresponding PDSCH receiving mode according to different use requirements, so as to efficiently receive the PDSCH.

Claims

1. A method of receiving a physical downlink shared channel, the method being performed by a user equipment, wherein, The method comprises: determining a physical downlink shared channel (PDSCH) receiving mode, wherein the PDSCH receiving mode is a first mode or a second mode; the first mode corresponds to that, after the user equipment listens to control indication information comprising a COT end position, the user equipment receives a PDSCH located before the COT end position and does not receive a PDSCH located after the COT end position; the second mode corresponds to that, after the user equipment listens to control indication information comprising a COT end position, the user equipment receives a PDSCH located before the COT end position and receives a PDSCH located after the COT end position; listening to and receiving downlink control information, wherein the downlink control information comprises information for indicating the COT end position; receiving the PDSCH in the determined PDSCH receiving mode; wherein the PDSCH located before the COT end position does not comprise a part of a cross-zone PDSCH located before the COT end position, or the PDSCH located before the COT end position comprises a part of the cross-zone PDSCH located before the COT end position, wherein a starting time domain position of the cross-zone PDSCH is located before the COT end position and an ending time domain position of the cross-zone PDSCH is located after the COT end position.

2. The method of claim 1, wherein the determining of the PDSCH receiving mode comprises: determining the PDSCH receiving mode based on a protocol specification.

3. The method of claim 1, wherein the determining of the PDSCH receiving mode comprises: receiving first indication information from a network device, wherein the first indication information is used to indicate that the PDSCH receiving mode is the first mode or the second mode.

4. The method of claim 1, wherein the method further comprises: determining a resource of a physical uplink control channel (PUCCH) used for sending HARQ feedback information according to a time domain position of a last PDSCH, wherein the last PDSCH comprises a last PDSCH located after the COT end position and not received.

5. The method of claim 1, wherein the method further comprises: determining respective HARQ process identifiers occupied by respective PDSCHs located after the COT end position and not received.

6. The method of any one of claims 1 to 5, wherein the PDSCH located after the COT end position comprises a part of a cross-zone PDSCH located after the COT end position. 7.A method for transmitting a physical downlink shared channel, the method being performed by a network device, wherein, The method comprises: sending first indication information to a user equipment, wherein the first indication information is used to indicate that a physical downlink shared channel (PDSCH) receiving mode is a first mode or the PDSCH receiving mode is a second mode; sending downlink control information, wherein the downlink control information comprises information for indicating a COT end position; sending a PDSCH; wherein The first mode corresponds to that the user equipment receives the PDSCH located before the COT end position after listening to the control indication information including the COT end position, and does not receive the PDSCH located after the COT end position. The second mode corresponds to that the user equipment receives the PDSCH located before the COT end position and the PDSCH located after the COT end position after listening to the control indication information including the COT end position. The PDSCH located before the COT end position does not include the part of the cross-region PDSCH located before the COT end position, or the PDSCH located before the COT end position includes the part of the cross-region PDSCH located before the COT end position, wherein the starting time domain position of the cross-region PDSCH is located before the COT end position, and the ending time domain position of the cross-region PDSCH is located after the COT end position.

8. The method of claim 7, wherein, The PDSCH located after the COT end position includes the part of the cross-region PDSCH located after the COT end position.

9. A communication apparatus, comprising: a processing module, configured to determine a physical downlink shared channel (PDSCH) receiving mode, listen to and receive downlink control information; wherein the PDSCH receiving mode is a first mode or a second mode; the first mode corresponds to that a user equipment receives the PDSCH located before a COT end position after listening to control indication information including the COT end position, and does not receive the PDSCH located after the COT end position; the second mode corresponds to that the user equipment receives the PDSCH located before the COT end position and the PDSCH located after the COT end position after listening to the control indication information including the COT end position; and the downlink control information includes information used to indicate the COT end position; a transceiver module, configured to receive the PDSCH in the determined PDSCH receiving mode. The PDSCH located before the COT end position does not include the part of the cross-region PDSCH located before the COT end position, or the PDSCH located before the COT end position includes the part of the cross-region PDSCH located before the COT end position, wherein the starting time domain position of the cross-region PDSCH is located before the COT end position, and the ending time domain position of the cross-region PDSCH is located after the COT end position.

10. A communication apparatus, comprising: a transceiver module, configured to send first indication information to a user equipment, and send downlink control information; send a PDSCH; The first indication information is used to indicate that the PDSCH receiving mode is the first mode, or the PDSCH receiving mode is the second mode. The downlink control information includes information used to indicate a COT end position. The first mode corresponds to the user equipment receiving the PDSCH located before the COT end position after listening to the control indication information including the COT end position, and not receiving the PDSCH located after the COT end position. The second mode corresponds to the user equipment receiving the PDSCH located before the COT end position and the PDSCH located after the COT end position after listening to the control indication information including the COT end position. The PDSCH located before the COT end position does not include the part of the cross-region PDSCH located before the COT end position, or the PDSCH located before the COT end position includes the part of the cross-region PDSCH located before the COT end position, wherein the starting time domain position of the cross-region PDSCH is located before the COT end position, and the ending time domain position of the cross-region PDSCH is located after the COT end position.

11. A communication apparatus, comprising a processor and a memory; The memory is configured to store a computer program; The processor is configured to execute the computer program to implement the method in any one of claims 1-6.

12. A communication apparatus, comprising a processor and a memory; The memory is configured to store a computer program; The processor is configured to execute the computer program to implement the method in any one of claims 7-8.

13. A computer readable storage medium, having stored therein instructions which, when executed on a computer, cause the computer to perform the method in any one of claims 1-6.

14. A computer readable storage medium, having stored therein instructions which, when executed on a computer, cause the computer to perform the method in any one of claims 7-8.

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