WO2022078360A1 - Communication method and related product - Google Patents

Abstract

Provided in embodiments of the present application are a communication method and a related product. The method comprises: a network device sends, on a same time slot and by means of at least two PDCCHs, an SPS release request to a terminal, the SPS release request being used to instruct releasing SPS PDSCH transmission; a transmission end time unit of a PDCCH which is the earliest to transmit the SPS release request among the at least two PDCCHs is before a transmission end time unit of the SPS PDSCH transmission; and a terminal receives, on the same time slot and by means of at least two PDCCHs, the SPS release request from the network device. Using the embodiments of the present application, when the PDCCH for transmitting an SPS release is enhanced with multi-TRP transmission, restrictions of a network device on downlink resource scheduling can be relaxed, the scheduling flexibility of the network device can be improved, and the reliability of PDCCH transmission can be guaranteed.

Description

Communication methods and related products

This application claims the priority of the Chinese patent application with the application number 202011106423.3 and the application title "Communication Method and Related Products" filed with the China Patent Office on October 15, 2020, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a communication method and related products.

Background technique

In the Ultra-reliable Low Latency Communications (URLLC) system, when transmitting the Physical Downlink Control Channel (PDCCH) released by Semi-Persistent Scheduling (SPS), it supports multiple TRPs When the transmission of (Multiple Tx/Rx Point, Multi-TRP) is enhanced, there is no corresponding relationship between the transmission time of PDCCH and the transmission time of the corresponding semi-persistently scheduled physical downlink shared channel (Semi-Persistent Scheduling PDSCH, SPS PDSCH). discuss. If the method based on 3GPP Rel-16 is used, the scheduling flexibility is very low, the base station may not be able to find downlink resources corresponding to multiple PDCCHs in one time slot, and the reliability of PDCCH transmission cannot be guaranteed.

SUMMARY OF THE INVENTION

The embodiment of the present application discloses a communication method and related products. When the PDCCH released by the SPS is transmitted for multi-TRP transmission enhancement, the restriction on downlink resource scheduling by the network device can be relaxed, the scheduling flexibility of the network device can be improved, and the PDCCH transmission can be guaranteed. reliability.

A first aspect of the embodiments of the present application discloses a communication method, which is applied to a network device. The method includes: sending a semi-persistently scheduled SPS release request to a terminal through at least two physical downlink control channels PDCCH in the same time slot, wherein, The SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is in the transmission of the SPS PDSCH transmission. before the end time unit.

It can be seen that in this embodiment, an SPS release request is sent to the terminal through at least two PDCCHs on the same time slot, and the SPS release request is used to indicate the release of SPS PDSCH transmission; During the enhancement, the network device sends an SPS release request to the terminal through at least two PDCCHs in the same time slot, thereby ensuring the reliability of PDCCH transmission; and, only the PDCCH that transmits the SPS release request earliest in the at least two PDCCHs is required. The transmission end time unit is before the transmission end time unit of the SPS PDSCH transmission, thereby relaxing the restriction on downlink resource scheduling by the network device and improving the scheduling flexibility of the network device.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same physical uplink control channel PUCCH, and the method further includes: receiving the SPS feedback from the terminal The HARQ-ACK information is acknowledged by the HARQ-ACK information of the release request.

It can be seen that in this example, if the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, the network device only receives the HARQ-ACK information of the SPS release request fed back from the terminal, that is, the terminal only feeds back the SPS release request. The requested HARQ-ACK information, thereby ensuring that the terminal can successfully receive the SPS release request.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the method further includes: receiving the HARQ of the SPS release request fed back from the terminal -ACK information.

It can be seen that in this example, if the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, the network device can receive the HARQ-ACK of the SPS release request fed back from the terminal through the PUCCH used to feed back the SPS release request. information, that is, the terminal can feed back the HARQ-ACK information of the SPS release request through the PUCCH used to feed back the SPS release request, thereby ensuring that the terminal can successfully receive the SPS release request.

In an exemplary embodiment, the method further includes: receiving HARQ-ACK information of the SPS PDSCH transmission fed back from the terminal, where the HARQ-ACK information of the SPS PDSCH transmission is successfully transmitted by the terminal Send before receiving the SPS release request; receive the unacknowledged NACK information of the SPS PDSCH transmission fed back from the terminal, and the NACK information of the SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request.

It can be seen that in this example, since the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, the terminal can feedback the SPS release request through the PUCCH used to feed back the SPS release request, or can also use the PUCCH used to feed back the SPS release request. The transmitted PUCCH performs feedback of SPS PDSCH transmission; thus the network equipment can receive the HARQ-ACK information of this SPS PDSCH transmission fed back from the terminal, and the HARQ-ACK information of this SPS PDSCH transmission is sent by the terminal before successfully receiving the SPS release request; And the network equipment can receive the unacknowledged NACK information of this SPS PDSCH transmission from the terminal feedback, the NACK information of this SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request; In the case of ensuring that the terminal can successfully receive the SPS release request , and also helps to ensure the reliability of SPS PDSCH transmission.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

It can be seen that, in this example, when the PDCCH released by the SPS is transmitted for multi-TRP transmission enhancement, the network device sends an SPS release request to the terminal through the first PDCCH and the second PDCCH in the same time slot, and the transmission end time unit of the first PDCCH is in Before the transmission end time unit of the SPS PDSCH, the transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH, thereby relaxing the restriction on downlink resource scheduling by the network device and improving the scheduling flexibility of the network device.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

It can be seen that, in this example, when the PDCCH released by the SPS is transmitted for multi-TRP transmission enhancement, the network device sends an SPS release request to the terminal through the first PDCCH and the second PDCCH in the same time slot, and the transmission end time unit of the first PDCCH is in Before the transmission end time unit of the SPS PDSCH, the transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH. The restriction on the scheduling of downlink resources by the network equipment improves the scheduling flexibility of the network equipment.

A second aspect of the embodiments of the present application discloses a communication method, which is applied to a terminal. The method includes: receiving an SPS release request from a network device through at least two PDCCHs in the same time slot, wherein the SPS release request uses a In order to indicate the release of SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, and the method further includes: feeding back the HARQ- ACK information.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the method further includes: feeding back the HARQ-release request of the SPS release request to the network device. ACK information.

In an exemplary embodiment, the method further includes: before successfully receiving the SPS release request, feeding back the HARQ-ACK information of the SPS PDSCH transmission to the network device; after successfully receiving the SPS release request; After the request, the NACK information of the SPS PDSCH transmission is fed back to the network device.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

A third aspect of the embodiments of the present application discloses a communication apparatus, which is applied to network equipment. The apparatus includes: a sending unit, configured to send a semi-persistently scheduled SPS to a terminal through at least two physical downlink control channels PDCCH in the same time slot A release request, wherein the SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is in the Before the transmission end time unit of the SPS PDSCH transmission.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same physical uplink control channel PUCCH, and the apparatus further includes: a receiving unit, configured to receive data from the terminal The HARQ-ACK information of the fed back HARQ-ACK information of the SPS release request is confirmed.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the apparatus further includes: a receiving unit, configured to receive the feedback from the terminal feedback HARQ-ACK information of the SPS release request.

In an exemplary embodiment, the receiving unit is further configured to: receive the HARQ-ACK information transmitted by the SPS PDSCH fed back from the terminal, where the HARQ-ACK information transmitted by the SPS PDSCH is sent by the The terminal sends before successfully receiving the SPS release request; receives the unacknowledged NACK information of the SPS PDSCH transmission fed back from the terminal, and the NACK information of the SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request. send later.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

A fourth aspect of the embodiments of the present application discloses a communication apparatus, which is applied to a terminal. The apparatus includes: a receiving unit, configured to receive an SPS release request from a network device through at least two PDCCHs in the same time slot, wherein the The SPS release request is used to indicate the release of SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, and the apparatus further includes: a sending unit, configured to feed back the SPS to the network device Release the requested HARQ-ACK information.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the apparatus further includes: a sending unit configured to feed back the SPS to the network device Release the requested HARQ-ACK information.

In an exemplary embodiment, the sending unit is further configured to: before successfully receiving the SPS release request, feed back the HARQ-ACK information of the SPS PDSCH transmission to the network device; After the SPS release request is sent, the NACK information of the SPS PDSCH transmission is fed back to the network device.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

A fifth aspect of the embodiments of the present application discloses a network device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured by the is executed by the processor, the program comprising instructions for performing the steps in the method according to any one of the above first aspects.

A sixth aspect of an embodiment of the present application discloses a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured by the The processor executes the program comprising instructions for performing the steps in the method of any of the above second aspects.

A seventh aspect of the embodiments of the present application discloses a chip, which is characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the first aspect or the second The method of any one of the aspects.

An eighth aspect of the embodiments of the present application discloses a computer-readable storage medium, which stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute any one of the first aspect or the second aspect above the method described.

A ninth aspect of the embodiments of the present application discloses a computer program product, where the computer program product causes a computer to execute the method according to any one of the first aspect or the second aspect.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a timing diagram of a PDCCH and an SPS PDSCH used for SPS release in a same time slot provided by an embodiment of the present application;

2 is a timing diagram of 2 PDCCHs and SPS PDSCHs used for SPS release in a same time slot provided by an embodiment of the present application;

3 is a schematic diagram of a communication system provided by an embodiment of the present application;

4 is a schematic flowchart of a communication method provided by an embodiment of the present application;

5 is a timing diagram of 2 PDCCHs and SPS PDSCHs released by a corresponding time-division multiplexed SPS in the same time slot provided by an embodiment of the present application;

6 is a timing diagram of 2 PDCCHs and SPS PDSCHs released by SPS corresponding to frequency division multiplexing in the same time slot provided by an embodiment of the present application;

7 is a timing diagram of 2 PDCCHs and SPS PDSCHs released by a corresponding time-division multiplexed SPS in another same time slot provided by an embodiment of the present application;

8 is a timing diagram of 2 PDCCHs and SPS PDSCHs released by SPS corresponding to frequency division multiplexing in another same time slot provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a terminal provided by an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

In order to facilitate the understanding of the present application by those skilled in the art, some terms in the present application are first explained and described, and the related technical knowledge involved in the embodiments of the present application is introduced.

Multi-TRP (Multiple Tx/Rx Point, Multi-TRP), a scenario based on multiple transceiver points serving a user, each transceiver point contains a set of transceiver antennas.

Transmission Reception Point (TRP).

Enhanced Mobile Broadband (EMBB).

The Physical Downlink Control Channel (PDCCH) is used to carry downlink control messages.

Downlink Control Information (Downlink Control Information, DCI), composed of multiple parameter fields, is sent to the user through the PDCCH.

User Equipment (UE).

The Physical Downlink Shared Channel (PDSCH) is used to carry downlink data messages.

The Physical Uplink Control Channel (PUCCH) is used to carry uplink control messages.

Semi-Persistent Scheduling (SPS) means that the scheduling of resources is pre-configured and periodic.

SPS release is a semi-persistent scheduling release, also known as SPS PDCCH release.

Frequency Division Multiplexing (FDM) is to divide the total bandwidth used for the transmission channel into several sub-bands (or sub-channels), and each sub-channel transmits a signal.

Time Division Multiplexing (TDM) uses different periods of the same physical connection to transmit different signals, and can also achieve the purpose of multiplexing; TDM uses time as a parameter for signal division, so it is necessary to make each The channel signals do not overlap each other on the time axis.

In the downlink transmission of NR, the base station can perform downlink data transmission by scheduling the SPS PDSCH. The SPS PDSCH is configured with a transmission period and a configuration index by RRC, and is periodically transmitted after being activated by DCI. In the 3GPP Rel-16 version, up to 16 groups of SPS PDSCH can be configured at the same time.

During the SPS PDSCH transmission process, the release of the SPS PDSCH configuration can be indicated through the SPSPDCCH release. In 3GPP Rel-16, one SPS release DCI can release one or more groups of SPS PDSCH at the same time.

In the RAN1#101-e meeting, the agreement on UE behavior of SPS release and SPS PDSCH reception in the same time slot is as follows:

As shown in Figure 1, in the same time slot (slot), the UE needs to receive the SPS release before the SPS PDSCH corresponding to the same SPS configuration index is received, and when the SPS release and the SPS PDSCH are fed back with the same PUCCH resources When the UE only reports 1-bit HARQ-ACK for SPS release, and does not wish to receive the SPS PDSCH. And it is not supported that the UE receives the SPS release in the same slot after the SPS PDSCH corresponding to the same SPS configuration index is received. Among them, in Figure 1, SPS reception represents SPS PDSCH transmission, and SPS release represents the transmission of SPS release.

Whether to support SPS release of the same configuration index and SPS PDSCH feedback through different PUCCH resources is still to be determined. According to the current standardization progress, this feature is more likely to be supported.

In the standardization process of New Radio Access Technology (NR), a similar coordinated multi-point transmission technology is called multi-TRP transmission. In the 3GPP Rel-15 version, multi-TRP transmission only enhances the PDSCH transmission of the URLLC and EMBB systems, and does not enhance the PDCCH transmission of the URLLC and EMBB systems; the 3GPP Rel-17 version has made it clear that the PDCCH transmission of the URLLC should be multi-TRP enhancement.

For PDCCH enhancement, the protocols currently supported by the protocol include time division multiplexing (TDM), frequency division multiplexing (FDM) and space division multiplexing (SDM). And for the time-division multiplexed PDCCH transmission, repetition-based PDCCH transmission and multi-chance (Multi-Chance) PDCCH transmission may be used.

When transmitting the PDCCH released by the SPS for Multi-TRP transmission enhancement, how to design the timing relationship between the SPS PDSCH and the PDCCH released by the transmission SPS is a problem, which has not been discussed in the current protocol.

An intuitive solution is that the end of the reception of the PDCCH released by the latest transmission SPS needs to be earlier than the end of the reception of the SPS PDSCH. As shown in Figure 2, an SPS release has 2 TDM PDCCH transmissions in one slot, and the last The reception of the PDCCH needs to be earlier than the termination symbol of the SPS PDSCH. This method is more compatible with the Rel-16 version, but it is difficult to implement in the actual system. For example, when there are multiple service types in the URLLC system, the base station needs to configure multiple SPS PDSCHs and dynamically scheduled PDSCHs, and the SPS The period of the PDSCH will be relatively small, and the available downlink resources will be limited at this time, so it is difficult for the base station to find two or more PDCCH resources that meet the time requirement to transmit the SPS release request. 2 and other drawings in this application, SPS represents SPS PDSCH transmission, Rel.1 represents the first PDCCH resource transmission SPS release request, and Rel.2 represents the second PDCCH resource transmission SPS release request.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE Time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, the future fifth generation (5th generation, 5G) system or new radio (NR), etc.

A terminal in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, relay devices, in-vehicle devices, wearable devices, terminals in future 5G networks or future evolution of public land mobile networks (PLMN) The terminal etc. in the embodiments of the present application are not limited to this.

The network device in this embodiment of the present application may be a device for communicating with a terminal, and the network device may be a global system for mobile communications (GSM) system or a code division multiple access (code division multiple access, CDMA) system. It can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoled NodeB) in an LTE system. , eNB or eNodeB), it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay device, an access point, a vehicle-mounted device, a wearable device, and Network equipment in the future 5G network or network equipment in the future evolved PLMN network, one or a group (including multiple antenna panels) antenna panels of the base station in the 5G system, or, it can also be a network that constitutes a gNB or a transmission point A node, such as a baseband unit (baseband unit, BBU), or a distributed unit (distributed unit, DU), etc., is not limited in this embodiment of the present application.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, in this architecture, the higher-layer signaling, such as the RRC layer signaling, can also be considered to be sent by the DU. , or, sent by DU+AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.

In this embodiment of the present application, the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU), and memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program that records the codes of the methods provided by the embodiments of the present application can be executed to provide the methods provided by the embodiments of the present application. For example, the execution subject of the method provided by the embodiment of the present application may be a terminal, or a functional module in the terminal that can call and execute a program.

The technical solutions provided by the present application will be introduced in detail below with reference to specific embodiments.

Please refer to FIG. 3 , which is a schematic diagram of a communication system provided by an embodiment of the present application. The communication system 300 in FIG. 3 may include at least one terminal 310 (eg, terminal 1 , terminal 2 , terminal 3 , etc.) and a network device 320 . The network device 320 is used to provide communication services for the terminal 310 and access the core network. The terminal 310 can access the network by searching for synchronization signals and broadcast signals sent by the network device 320 to communicate with the network. The terminal 310 may receive configuration information or system information or the like from the network device 320 . It should be understood that there may be one or more network devices 320 included in the communication system, and one network device 320 may send data or control signaling to one or more terminals 310 . Multiple network devices 320 may also send data or control signaling to one or more terminals 310 at the same time.

Please refer to FIG. 4. FIG. 4 is a communication method provided by an embodiment of the present application, wherein the method can be applied to the communication system shown in FIG. 3, and the method includes but is not limited to the following steps:

Step 401, the network device sends a semi-persistent scheduling SPS release request to the terminal through at least two physical downlink control channels PDCCH on the same time slot, wherein the SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission.

Wherein, releasing the semi-persistently scheduled physical layer downlink shared channel SPS PDSCH transmission refers to: releasing the information carried on the semi-persistently scheduled physical layer downlink shared channel SPS PDSCH.

The time unit may be a symbol, for example, the transmission end time unit may be a transmission end symbol or a transmission end symbol, or the transmission start time unit may be a transmission start symbol or a transmission start symbol.

Step 402: The terminal receives an SPS release request from a network device through at least two PDCCHs in the same time slot.

It can be seen that in this embodiment, an SPS release request is sent to the terminal through at least two PDCCHs on the same time slot, and the SPS release request is used to indicate the release of SPS PDSCH transmission; During the enhancement, the network device sends an SPS release request to the terminal through at least two PDCCHs in the same time slot, thereby ensuring the reliability of PDCCH transmission; and, only the PDCCH that transmits the SPS release request earliest in the at least two PDCCHs is required. The transmission end time unit is before the transmission end time unit of the SPS PDSCH transmission, thereby relaxing the restriction on downlink resource scheduling by the network device and improving the scheduling flexibility of the network device.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same physical uplink control channel PUCCH, and the method further includes: receiving the SPS feedback from the terminal The HARQ-ACK information is acknowledged by the HARQ-ACK information of the release request.

It can be seen that in this example, if the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, the network device only receives the HARQ-ACK information of the SPS release request fed back from the terminal, that is, the terminal only feeds back the SPS release request. The requested HARQ-ACK information, thereby ensuring that the terminal can successfully receive the SPS release request.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the method further includes: receiving the HARQ of the SPS release request fed back from the terminal -ACK information.

It can be seen that in this example, if the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, the network device can receive the HARQ-ACK of the SPS release request fed back from the terminal through the PUCCH used to feed back the SPS release request. information, that is, the terminal can feed back the HARQ-ACK information of the SPS release request through the PUCCH used to feed back the SPS release request, thereby ensuring that the terminal can successfully receive the SPS release request.

In an exemplary embodiment, the method further includes: receiving HARQ-ACK information of the SPS PDSCH transmission fed back from the terminal, where the HARQ-ACK information of the SPS PDSCH transmission is successfully transmitted by the terminal Send before receiving the SPS release request; receive the unacknowledged NACK information of the SPS PDSCH transmission fed back from the terminal, and the NACK information of the SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request.

It can be seen that in this example, since the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, the terminal can feedback the SPS release request through the PUCCH used to feed back the SPS release request, or can also use the PUCCH used to feed back the SPS release request. The transmitted PUCCH performs feedback of SPS PDSCH transmission; thus the network equipment can receive the HARQ-ACK information of this SPS PDSCH transmission fed back from the terminal, and the HARQ-ACK information of this SPS PDSCH transmission is sent by the terminal before successfully receiving the SPS release request; And the network equipment can receive the unacknowledged NACK information of this SPS PDSCH transmission from the terminal feedback, the NACK information of this SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request; In the case of ensuring that the terminal can successfully receive the SPS release request , and also helps to ensure the reliability of SPS PDSCH transmission.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

It can be seen that, in this example, when the PDCCH released by the SPS is transmitted for multi-TRP transmission enhancement, the network device sends an SPS release request to the terminal through the first PDCCH and the second PDCCH in the same time slot, and the transmission end time unit of the first PDCCH is in Before the transmission end time unit of the SPS PDSCH, the transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH, thereby relaxing the restriction on downlink resource scheduling by the network device and improving the scheduling flexibility of the network device.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

It can be seen that, in this example, when the PDCCH released by the SPS is transmitted for multi-TRP transmission enhancement, the network device sends an SPS release request to the terminal through the first PDCCH and the second PDCCH in the same time slot, and the transmission end time unit of the first PDCCH is in Before the transmission end time unit of the SPS PDSCH, the transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH. The restriction on the scheduling of downlink resources by the network equipment improves the scheduling flexibility of the network equipment.

The technical solutions provided by the present application are described in detail below with reference to specific examples.

Example 1, please refer to FIG. 5. FIG. 5 is a timing relationship diagram of two PDCCHs and an SPS PDSCH released by an SPS corresponding to time division multiplexing in the same time slot provided by an embodiment of the present application. As shown in Figure 5, the PDCCH transmission configuration based on TDM-based SPS release in one time slot, and the same PUCCH resources are used for SPS release and SPS PDSCH feedback, only the first PDCCH needs to be received earlier than the corresponding SPS PDSCH , the transmission timing of the following PDCCH is not limited. The behavior of the corresponding UE is: the UE only feeds back the HARQ-ACK for the PDCCH released by the transmission SPS, and does not feed back the SPS PDSCH.

Specifically, the base station configures the transmission termination symbol of SPS PDSCH transmission as symbol 6 in one time slot; the base station configures the transmission symbols occupied by the two PDCCHs for transmitting SPS release to be symbols 2-5 and 8-11 respectively, that is, the symbols 2-5 and 8-11 of PDCCH1 The transmission is before the SPS PDSCH transmission, the transmission of PDCCH2 is after the SPS PDSCH transmission, and the two PDCCHs are respectively transmitted with different TRPs. At this time, the UE only receives and decodes the PDCCH released by the SPS, and performs HARQ-ACK reporting, and the UE does not perform HARQ-ACK reporting on the SPS PDSCH.

For example 2, please refer to FIG. 6 . FIG. 6 is a time sequence diagram of two PDCCHs and SPS PDSCHs released by SPS corresponding to frequency division multiplexing in the same time slot provided by an embodiment of the present application. As shown in Figure 6, the PDCCH transmission configuration based on FDM-based SPS release in 1 time slot, and the same PUCCH resources are used for SPS release and SPS PDSCH feedback, only the PDCCH with the earliest termination symbol needs to be received earlier than the SPS PDSCH , the transmission timing of the remaining PDCCHs is not limited. The behavior of the corresponding UE is: the UE only feeds back the HARQ-ACK for the PDCCH released by the transmission SPS, and does not feed back the SPS PDSCH.

Specifically, the base station configures the transmission termination symbol of SPS PDSCH transmission as symbol 6 in one time slot; the base station configures the 2 PDCCHs for transmitting SPS release to occupy different frequency bands, and the occupied transmission symbols are symbols 2-5 and 4 respectively -7, that is, the transmission of PDCCH1 is before SPS PDSCH transmission, the transmission termination symbol of PDCCH2 is after the transmission termination symbol of SPS PDSCH transmission, and the two PDCCHs are transmitted with different TRPs respectively. At this time, the UE only receives and decodes the PDCCH released by the transmission SPS, and performs HARQ-ACK reporting, and the UE does not perform HARQ-ACK reporting on the SPS PDSCH.

For example 3, please refer to FIG. 7, which is another timing diagram of the two PDCCHs and the SPS PDSCH released by the SPS corresponding to time division multiplexing in the same time slot provided by the embodiment of the present application. As shown in Figure 7, the PDCCH transmission configuration based on TDM-based SPS release in 1 time slot, and SPS release and SPS PDSCH feedback use different PUCCH resources, only the first PDCCH reception needs to be earlier than SPS PDSCH transmission , the transmission timing of the following PDCCH is not limited. The behavior of the corresponding UE is: before the PDCCH released by the SPS is successfully received, the UE can receive the SPS PDSCH and feedback it; after the PDCCH released by the SPS is successfully received, the UE does not receive the SPS PDSCH and feeds back NACK. Among them, miss detection means missed detection or missed detection.

Specifically, the base station configures the transmission termination symbol of SPS PDSCH transmission as symbol 6 in one time slot; the base station configures the transmission symbols occupied by the two PDCCHs for transmitting SPS release to be symbols 2-5 and 8-11 respectively, that is, the symbols 2-5 and 8-11 of PDCCH1 The transmission is before the SPS PDSCH transmission, the PDCCH2 transmission is after the SPS PDSCH transmission, and the two PDCCHs are transmitted with different TRPs respectively, and the SPS PDSCH and SPS release feedback to different PUCCH resources. At this time, before the PDCCH released by the transmission SPS is successfully received, the UE can receive the SPS PDSCH and feed it back. After the successful reception of the PDCCH released by the transmission SPS, the UE does not receive the SPS PDSCH and feeds back NACK.

Example 4, please refer to FIG. 8. FIG. 8 is another timing diagram of the two PDCCHs and the SPS PDSCH released by the SPS corresponding to frequency division multiplexing in the same time slot provided by the embodiment of the present application. As shown in Figure 8, the PDCCH transmission configuration based on FDM-based SPS release in one time slot, and the SPS release and SPS PDSCH feedback use different PUCCH resources, only the PDCCH with the earliest termination symbol needs to be received earlier than the SPS PDSCH The transmitted transmission termination symbol, and the transmission timing of the following PDCCH is not limited. The behavior of the corresponding UE is: before the PDCCH released by the transmission SPS is successfully received, the UE can receive the SPS PDSCH and feedback it; after the PDCCH released by the transmission SPS is successfully received, the UE does not receive the SPS PDSCH and feeds back NACK.

Specifically, the base station configures the transmission termination symbol of SPS PDSCH transmission as symbol 6 in a time slot; the base station configures the transmission symbols occupied by the two PDCCHs for transmitting SPS release to be symbols 2-5 and 4-7 respectively, that is, the symbols 2-5 and 4-7 of PDCCH1 The transmission is before the SPS PDSCH, the transmission termination symbol of PDCCH2 is after the transmission termination symbol of the SPS PDSCH, and the two PDCCHs are transmitted with different TRPs respectively, and the SPS PDSCH and SPS release feedback to different PUCCH resources. At this time, before the successful reception of the PDCCH released by the transmission SPS, the UE can receive the SPS PDSCH and feedback it; after the PDCCH released by the transmission SPS is successfully received, the UE does not receive the SPS PDSCH and feeds back NACK.

Please refer to FIG. 9. FIG. 9 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application. The communication apparatus 900 is applied to a network device, and the communication apparatus 900 may include a sending unit 901. The detailed description of each unit is as follows:

A sending unit 901, configured to send a semi-persistently scheduled SPS release request to a terminal through at least two physical downlink control channels PDCCH on the same time slot, wherein the SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same physical uplink control channel PUCCH, and the apparatus further includes: a receiving unit 902, configured to receive data from the SPS PDSCH The hybrid automatic repeat request of the SPS release request fed back by the terminal confirms the HARQ-ACK information.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the apparatus further includes: a receiving unit 902, configured to receive all the feedback from the terminal. HARQ-ACK information of the SPS release request.

In an exemplary embodiment, the receiving unit 902 is further configured to: receive the HARQ-ACK information transmitted by the SPS PDSCH fed back from the terminal, where the HARQ-ACK information transmitted by the SPS PDSCH is The terminal sends before successfully receiving the SPS release request; receives the unacknowledged NACK information of the SPS PDSCH transmission fed back from the terminal, and the NACK information of the SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release. sent after the request.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

It should be noted that, the implementation of each unit may also refer to the corresponding description in the method embodiment shown in FIG. 4 . Certainly, the communication apparatus 900 provided in this embodiment of the present application includes, but is not limited to, the above-mentioned unit modules. For example, the communication apparatus 900 may further include a storage unit 903 . The storage unit 903 may be used to store program codes and data of the communication device 900 .

In the communication device 900 described in FIG. 9 , an SPS release request is sent to the terminal through at least two PDCCHs on the same time slot, and the SPS release request is used to indicate the release of SPS PDSCH transmission; When the transmission is enhanced, the network device sends an SPS release request to the terminal through at least two PDCCHs in the same time slot, thereby ensuring the reliability of PDCCH transmission; and, only the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is required The transmission end time unit of the SPS PDSCH transmission is before the transmission end time unit of the SPS PDSCH transmission, thereby relaxing the restriction on the scheduling of downlink resources by the network device and improving the scheduling flexibility of the network device.

Please refer to FIG. 10. FIG. 10 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application. The communication apparatus 1000 is applied to a terminal, and the communication apparatus 1000 may include a receiving unit 1001, wherein the detailed description of each unit is as follows:

A receiving unit 1001 is configured to receive an SPS release request from a network device through at least two PDCCHs on the same time slot, wherein the SPS release request is used to indicate the release of SPS PDSCH transmission; The transmission end time unit of the PDCCH of the SPS release request is before the transmission end time unit of the SPS PDSCH transmission.

In an exemplary implementation, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, and the apparatus further includes: a sending unit 1002, configured to feed back the HARQ-ACK information of the SPS release request.

In an exemplary embodiment, the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the apparatus further includes: a sending unit 1002, configured to feed back the feedback to the network device. HARQ-ACK information of the SPS release request.

In an exemplary embodiment, the sending unit 1002 is further configured to: before successfully receiving the SPS release request, feed back the HARQ-ACK information of the SPS PDSCH transmission to the network device; After the SPS release request, the NACK information of the SPS PDSCH transmission is fed back to the network device.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

In an exemplary embodiment, the at least two PDCCHs include a first PDCCH and a second PDCCH, the transmission end time unit of the first PDCCH is before the transmission end time unit of the SPS PDSCH, the The transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH.

It should be noted that, the implementation of each unit may also refer to the corresponding description in the method embodiment shown in FIG. 4 . Certainly, the communication apparatus 1000 provided in this embodiment of the present application includes, but is not limited to, the above-mentioned unit modules. For example, the communication apparatus 1000 may further include a storage unit 1003 . The storage unit 1003 may be used to store program codes and data of the communication device 1000 .

In the communication device 1000 described in FIG. 10, an SPS release request is sent to the terminal through at least two PDCCHs on the same time slot, and the SPS release request is used to indicate the release of SPS PDSCH transmission; When the transmission is enhanced, the network device sends an SPS release request to the terminal through at least two PDCCHs in the same time slot, thereby ensuring the reliability of PDCCH transmission; and, only the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is required The transmission end time unit of the SPS PDSCH transmission is before the transmission end time unit of the SPS PDSCH transmission, thereby relaxing the restriction on the scheduling of downlink resources by the network device and improving the scheduling flexibility of the network device.

Please refer to FIG. 11. FIG. 11 is a schematic structural diagram of a network device 1110 provided by an embodiment of the present application. As shown in FIG. 11, the network device 1110 includes a communication interface 1111, a processor 1112, a memory 1113, and at least one for A communication bus 1114 connecting the communication interface 1111 , the processor 1112 , and the memory 1113 .

The memory 1113 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 1113 is used for related instructions and data.

The communication interface 1111 is used to receive and transmit data.

The processor 1112 may be one or more central processing units (central processing units, CPUs). In the case where the processor 1112 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1112 in the network device 1110 is configured to read one or more program codes stored in the memory 1113, and perform the following operations: send a semi-static transmission to the terminal through at least two physical downlink control channels PDCCH on the same time slot Scheduling an SPS release request, wherein the SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is at Before the transmission end time unit of the SPS PDSCH transmission.

It should be noted that, the implementation of each operation may also refer to the corresponding description in the method embodiment shown in FIG. 4 .

In the network device 1110 described in FIG. 11, an SPS release request is sent to the terminal through at least two PDCCHs on the same time slot, and the SPS release request is used to indicate the release of the SPS PDSCH transmission; When the transmission is enhanced, the network device sends an SPS release request to the terminal through at least two PDCCHs in the same time slot, thereby ensuring the reliability of PDCCH transmission; and, only the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is required The transmission end time unit of the SPS PDSCH transmission is before the transmission end time unit of the SPS PDSCH transmission, thereby relaxing the restriction on the scheduling of downlink resources by the network device and improving the scheduling flexibility of the network device.

Please refer to FIG. 12. FIG. 12 is a schematic structural diagram of a terminal 1210 provided by an embodiment of the present application. As shown in FIG. 12, the terminal 1210 includes a communication interface 1211, a processor 1212, a memory 1213, and at least one interface for connecting The communication interface 1211, the processor 1212, and the communication bus 1214 of the memory 1213.

The memory 1213 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 1213 is used for related instructions and data.

The communication interface 1211 is used to receive and transmit data.

The processor 1212 may be one or more central processing units (central processing units, CPUs). In the case where the processor 1212 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1212 in the terminal 1210 is configured to read one or more program codes stored in the memory 1213, and perform the following operations: receive an SPS release request from a network device through at least two PDCCHs on the same time slot, wherein , the SPS release request is used to indicate the release of SPS PDSCH transmission; the transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission.

It should be noted that, the implementation of each operation may also refer to the corresponding description in the method embodiment shown in FIG. 4 .

In the terminal 1210 described in FIG. 12, an SPS release request is sent to the terminal through at least two PDCCHs on the same time slot, and the SPS release request is used to indicate the release of SPS PDSCH transmission; During the enhancement, the network device sends an SPS release request to the terminal through at least two PDCCHs in the same time slot, thereby ensuring the reliability of PDCCH transmission; and, only the PDCCH that transmits the SPS release request earliest in the at least two PDCCHs is required. The transmission end time unit is before the transmission end time unit of the SPS PDSCH transmission, thereby relaxing the restriction on downlink resource scheduling by the network device and improving the scheduling flexibility of the network device.

An embodiment of the present application further provides a chip, where the chip includes at least one processor, a memory, and an interface circuit, the memory, the transceiver, and the at least one processor are interconnected through lines, and the at least one memory stores There is a computer program; when the computer program is executed by the processor, the method flow in the method embodiment shown in FIG. 4 is realized.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is run on a computer, the method process in the method embodiment shown in FIG. 4 is implemented.

The embodiment of the present application further provides a computer program product, when the computer program product runs on a computer, the method process in the method embodiment shown in FIG. 4 is realized.

It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits ( Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) is integrated in the processor.

It should be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should also be understood that the first, second, third, fourth and various numeral numbers mentioned herein are only for the convenience of description, and are not used to limit the scope of the present application.

It should be understood that the term "and/or" in this document is only an association relationship to describe associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

Those of ordinary skill in the art can realize 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. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

If the above functions are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods shown in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The steps in the method of the embodiment of the present application may be adjusted, combined and deleted in sequence according to actual needs.

The modules in the apparatus of the embodiment of the present application may be combined, divided and deleted according to actual needs.

Above, the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that: it can still be used for the above-mentioned implementations The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (29)

A communication method, characterized in that it is applied to a network device, the method comprising: Sending a semi-persistently scheduled SPS release request to the terminal through at least two physical downlink control channels PDCCH on the same time slot, wherein the SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; The transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission. The method according to claim 1, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same physical uplink control channel PUCCH, and the method further comprises: Receiving the HARQ-ACK information of the SPS release request feedback from the terminal acknowledges the HARQ-ACK request. The method according to claim 1, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the method further comprises: Receive the HARQ-ACK information of the SPS release request fed back from the terminal. The method according to claim 3, wherein the method further comprises: Receive the HARQ-ACK information of the SPS PDSCH transmission fed back from the terminal, and the HARQ-ACK information of the SPS PDSCH transmission is sent by the terminal before successfully receiving the SPS release request; Receive the unacknowledged NACK information of the SPS PDSCH transmission fed back from the terminal, and the NACK information of the SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request. The method according to any one of claims 1-4, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and the transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH. The method according to any one of claims 1-4, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and the transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH . A communication method, characterized in that it is applied to a terminal, the method comprising: Receive an SPS release request from a network device through at least two PDCCHs on the same time slot, wherein the SPS release request is used to indicate the release of SPS PDSCH transmission; The transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission. The method according to claim 7, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, and the method further comprises: The HARQ-ACK information of the SPS release request is fed back to the network device. The method according to claim 7, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the method further comprises: The HARQ-ACK information of the SPS release request is fed back to the network device. The method according to claim 9, wherein the method further comprises: Before successfully receiving the SPS release request, feedback the HARQ-ACK information of the SPS PDSCH transmission to the network device; After successfully receiving the SPS release request, the NACK information of the SPS PDSCH transmission is fed back to the network device. The method according to any one of claims 7-10, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and the transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH. The method according to any one of claims 7-10, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and the transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH . A communication device, characterized in that it is applied to network equipment, the device comprising: A sending unit, configured to send a semi-persistently scheduled SPS release request to the terminal through at least two physical downlink control channels PDCCH on the same time slot, wherein the SPS release request is used to indicate the release of the semi-persistently scheduled physical downlink shared channel SPS PDSCH transmission; The transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission. The apparatus according to claim 13, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same physical uplink control channel PUCCH, and the apparatus further comprises: A receiving unit, configured to receive the HARQ-ACK information of the hybrid automatic repeat request acknowledgment of the SPS release request fed back from the terminal. The apparatus according to claim 13, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the apparatus further comprises: A receiving unit, configured to receive the HARQ-ACK information of the SPS release request fed back from the terminal. The device according to claim 15, wherein the receiving unit is further configured to: Receive the HARQ-ACK information of the SPS PDSCH transmission fed back from the terminal, and the HARQ-ACK information of the SPS PDSCH transmission is sent by the terminal before successfully receiving the SPS release request; Receive the unacknowledged NACK information of the SPS PDSCH transmission fed back from the terminal, and the NACK information of the SPS PDSCH transmission is sent by the terminal after successfully receiving the SPS release request. The apparatus according to any one of claims 13-16, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and a transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH. The apparatus according to any one of claims 13-16, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and a transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH . A communication device, characterized in that, applied to a terminal, the device comprising: a receiving unit, configured to receive an SPS release request from a network device through at least two PDCCHs on the same time slot, wherein the SPS release request is used to indicate the release of SPS PDSCH transmission; The transmission end time unit of the PDCCH that transmits the SPS release request earliest among the at least two PDCCHs is before the transmission end time unit of the SPS PDSCH transmission. The apparatus according to claim 19, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use the same PUCCH, and the apparatus further comprises: A sending unit, configured to feed back the HARQ-ACK information of the SPS release request to the network device. The apparatus according to claim 19, wherein the feedback of the SPS release request and the feedback of the SPS PDSCH transmission use different PUCCHs, and the apparatus further comprises: A sending unit, configured to feed back the HARQ-ACK information of the SPS release request to the network device. The device according to claim 21, wherein the sending unit is further configured to: Before successfully receiving the SPS release request, feedback the HARQ-ACK information of the SPS PDSCH transmission to the network device; After successfully receiving the SPS release request, the NACK information of the SPS PDSCH transmission is fed back to the network device. The apparatus according to any one of claims 19-22, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and a transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH. The apparatus according to any one of claims 19-22, wherein the at least two PDCCHs include a first PDCCH and a second PDCCH, and a transmission end time unit of the first PDCCH is in the transmission of the SPS PDSCH Before the end time unit, the transmission start time unit of the second PDCCH is before the transmission end time unit of the SPS PDSCH, and the transmission end time unit of the second PDCCH is after the transmission end time unit of the SPS PDSCH . A network device comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program includes instructions for performing the steps in the method of any of claims 1-6. A terminal, characterized by comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the The program includes instructions for performing the steps in the method of any of claims 7-12. A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-6 or 7-12 method. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-6 or 7-12 . A computer program product that causes a computer to perform the method of any of claims 1-6 or 7-12.

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