WO2020199174A1

WO2020199174A1 - Communication method, terminal device and network device

Info

Publication number: WO2020199174A1
Application number: PCT/CN2019/081353
Authority: WO
Inventors: 林亚男; 徐婧
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-10-08
Also published as: CN112042249B; CN112042249A

Abstract

Provided in embodiments of the present application are a communication method, a terminal device, and a network device, which may improve the flexibility of communication in a processing method for PDSCH. The method comprises: a terminal device receiving indication information, wherein the indication information is used to indicate a resource occupied by a first physical downlink shared channel (PDSCH); and when a preset condition is met, the terminal device abandoning the first PDSCH.

Description

Communication method, terminal equipment and network equipment

Technical field

This application relates to the field of communication, and more specifically, to a communication method, terminal device, and network device.

Background technique

In a communication system, a network device can schedule a terminal device. For example, it can schedule a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) on the terminal device through Downlink Control Information (DCI).

With the development of communication systems, requirements for communication flexibility are getting higher and higher. How to improve communication flexibility in PDSCH processing is a problem to be solved urgently.

Summary of the invention

The embodiments of the present application provide a communication method, terminal equipment, and network equipment, which can improve the flexibility of communication in the PDSCH processing method.

In a first aspect, a communication method is provided, including: a terminal device receives indication information, where the indication information is used to indicate a resource occupied by a first physical downlink shared channel PDSCH;

When the preset condition is met, the terminal device abandons the first PDSCH.

In a second aspect, a communication method is provided, including: a network device sends indication information, wherein the indication information is used to indicate the resources occupied by the first physical downlink shared channel PDSCH; when a preset condition is met, the network The device determines that the first PDSCH is abandoned by the terminal device.

In a third aspect, a terminal device is provided for executing the method in the first aspect.

Specifically, the terminal device includes a functional module for executing the method in the foregoing first aspect.

In a fourth aspect, a network device is provided for executing the method in the second aspect.

Specifically, the network device includes a functional module for executing the method in the second aspect.

In a fifth aspect, a communication device is provided, including a processor, a memory, and a transceiver. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the method in the first aspect or the second aspect based on the transceiver.

In a sixth aspect, a chip is provided for implementing the method in the first or second aspect.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that a device installed with the chip executes the method in the first aspect or the second aspect based on the transceiver.

In a seventh aspect, a computer-readable storage medium is provided for storing a computer program, which when running on a terminal device, causes the terminal device to perform the method described in the first aspect; or when the computer program When running on the network device, the network device is caused to perform the method as described in the second aspect.

In an eighth aspect, a computer program product is provided, including computer program instructions, which when run on a terminal device, cause the terminal device to execute the method described in the first aspect; or when the computer program instructions are When running on the network device, the network device executes the method described in the second aspect.

In a ninth aspect, a computer program is provided. When it runs on a computer, the computer program causes the terminal device to execute the method described in the first aspect when the computer program runs on a terminal device; or when the computer program runs on a terminal device. When running on the network device, the network device executes the method described in the second aspect.

Therefore, in the embodiment of the present application, the terminal device receives the instruction information sent by the network device, and the instruction information indicates the resource of the first PDSCH. When the predetermined condition is met, the terminal device can abandon the first PDSCH, so that the terminal device can respond to the PDSCH. Flexible processing, which can improve the flexibility of communication.

Description of the drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Fig. 2 is a schematic diagram of a communication method provided by an embodiment of the present application.

Fig. 3 is a schematic diagram of HARQ sequential scheduling in an embodiment of the present application.

FIG. 4 is a schematic diagram of PDSCH corresponding to a feedback sequence in an embodiment of the present application.

Fig. 5 is a schematic diagram of abandoning PDSCH provided by an embodiment of the present application.

Fig. 6 is a schematic diagram of abandoning PDSCH provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of New Data Indicator (NDI) flipping in an embodiment of the present application.

FIG. 8 is a schematic diagram of NDI inversion in an embodiment of the present application.

FIG. 9 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 10 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 11 is a schematic block diagram of a communication device provided by an embodiment of the present application.

FIG. 12 is a schematic block diagram of a communication device provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, for example: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex) , TDD), 5G communication system or future communication system.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be an evolved base station (Evolutional Node B, eNB, or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or The network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a public land mobile network that will evolve in the future (Public Land Mobile Network). , PLMN) in the network equipment, etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 and the network device 110 may be connected to the network device through a wired or wireless connection and communicate with the network device through a wireless interface may be called a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". The terminal device 120 may also be a mobile terminal. Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; PDAs that can include radio phones, pagers, Internet/Intranet access, Web browsers, notebooks, calendars, and/or Global Positioning System (GPS) receivers; as well as conventional laptops and/or palmtops Receiver or other electronic device including a radio telephone transceiver. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

FIG. 2 is a schematic flowchart of a communication method 200 according to an embodiment of the present application. The method 200 includes at least part of the following content.

In 210, the network device sends indication information, where the indication information is used to indicate resources occupied by the first PDSCH.

In the embodiment of the present application, the network device may implement the indication of the resources occupied by the first PDSCH in various ways.

In an implementation manner, the network device may indicate the resources occupied by the first PDSCH through the DCI, that is, the first PDSCH may be a PDSCH that is dynamically scheduled. Wherein, the DCI may be a DCI in the format of 1_0 or 1_1. The DCI may carry the HARQ process number of the first scheduled PDSCH.

In another implementation manner, the network device may indicate the resources occupied by the first PDSCH through high-layer signaling. Specifically, the network device may configure the semi-static transmission resources of the PDSCH through high-level signaling and further configure the semi-statically through activation signaling (for example, high-level signaling or physical layer signaling (for example, DCI signaling)). The resource is activated (it can also be understood as activating the PDSCH transmitted on the resource).

In 220, the terminal device receives indication information, where the indication information is used to indicate resources occupied by the first PDSCH.

In 230, when a preset condition is met, the terminal device abandons the first PDSCH.

The processing (for example, abandonment), transmission, and detection of a channel (for example, PDSCH) mentioned in the embodiments of the present application may refer to abandonment, transmission, and detection of data or information carried in the channel.

The preset conditions mentioned in the embodiments of the present application may be configured by the network device to the terminal device, or may be preset on the terminal device based on a protocol.

Optionally, the preset conditions mentioned in the embodiment of the present application include: the terminal device receives the second PDSCH; wherein the time domain position of the second PDSCH is after the time domain position of the first PDSCH and The time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH.

Specifically, in order to reduce the complexity of terminal equipment implementation, the communication system can support sequential Hybrid Automatic Repeat reQuest (HARQ) scheduling, that is, the feedback information of the PDSCH scheduled later is not earlier than the previous scheduling PDSCH feedback information.

For example, as shown in Figure 3, the transmission time of PDSCH1 with HARQ process number X scheduled by DCI1 is earlier than the transmission time of PDSCH2 with HARQ process number Y scheduled by DCI2, and the feedback information of PDSCH2 (positive confirmation/negative confirmation (A The transmission of /N) is not expected to be earlier than the transmission of PDSCH1 feedback information. However, this mechanism will not be able to meet the delay requirements of specific services.

For example, for Ultra-Reliable Low Latency (URRLC) services, compared to enhanced Mobile Broadband (eMBB) services, lower transmission delay is expected. When the terminal device supports For eMBB and URLLC services, a possible situation is that the PDSCH carrying eMBB data has been transmitted, but the corresponding feedback information has not been sent. At this time, the PDSCH carrying the URLLC data has been reached. According to the delay requirement of the URLLC service, the feedback information of the URLL data needs to be transmitted before the feedback information corresponding to the eMBB data.

In order to meet this demand, the terminal device can send feedback information for the PDSCH scheduled later by abandoning the previous PDSCH. For example, in the scenario shown in Figure 3, PDSCH1 can be abandoned to support sequential HARQ scheduling.

Optionally, in this embodiment of the present application, the time domain position of the second PDSCH after the time domain position of the first PDSCH may be any of the following:

The time domain start position of the second PDSCH is after the time domain start position of the first PDSCH. At this time, the time domain end position of the second PDSCH may be before or after the time domain end position of the first PDSCH, or the second The end position of the PDSCH in the time domain is equal to the end position of the first PDSCH in the time domain; or,

The time domain end position of the second PDSCH is after the time domain end position of the first PDSCH. At this time, the time domain start position of the second PDSCH may be before or after the time domain start position of the first PDSCH. The time domain start position is equal to the time domain start position of the first PDSCH; or,

The time domain start position of the second PDSCH is after the time domain start position of the first PDSCH, and the time domain end position of the second PDSCH is after the time domain end position of the first PDSCH; or,

The time domain end position of the second PDSCH is after the time domain start position of the first PDSCH.

The above mentioned the time domain positional relationship that needs to be satisfied before the second PDSCH and the first PDSCH in the case of abandoning the first PDSCH, but the embodiment of the present application is not limited to this. In the embodiment of the present application, it may also be the The time domain position of the second PDSCH and the time domain position of the first PDSCH at least partially overlap, and the terminal device may also abandon the second PDSCH.

Specifically, due to the conflict in the time domain between the first PDSCH and the second PDSCH, if the processing capability of the terminal device is limited and can only receive one PDSCH at the same time, the terminal device needs to abandon one of the PDSCHs.

Optionally, in this embodiment of the present application, any second PDSCH that meets the above conditions may cause the first PDSCH to be abandoned, or it may also be that the received second PDSCH also needs to further meet other conditions.

For example, the preset condition may further include: the priority of the second PDSCH is higher than the priority of the first PDSCH.

The priority of the PDSCH can be determined by the service carried by the PDSCH. For example, the priority of the PDSCH carrying the URLLC service is higher than the priority of carrying the eMBB service.

Alternatively, the priority of the PDSCH may be determined by scheduling the DCI of the PDSCH. Specifically, the DCI may have a specific information field, and the specific information field may indicate the priority of the scheduled PDSCH.

The preset conditions that cause the first PDSCH to be abandoned are mentioned above. In addition to the preset conditions mentioned above, the embodiments of the present application may also have other preset conditions. For example, when the current communication quality is poor or the power of the terminal device is limited, the terminal device may be caused to abandon the first PDSCH.

Optionally, in the embodiment of the present application, the abandonment of the first PDSCH by the terminal device may include any one of the following:

1) Stop receiving the first PDSCH.

For example, if the terminal device determines (for example, can be determined by scheduling the DCI of the second PDSCH) that the above-mentioned second PDSCH exists before receiving the first PDSCH or in the process of receiving the first PDSCH, the terminal device may abandon the first PDSCH , That is, no longer receive the first PDSCH.

2) Stop demodulating the first PDSCH.

For example, if the terminal device determines (for example, can be determined by scheduling the DCI of the second PDSCH) that the second PDSCH exists before demodulating the first PDSCH or during the demodulation of the first PDSCH, the terminal device may abandon the second PDSCH. One PDSCH, that is, the first PDSCH is no longer demodulated.

3) Stop decoding the first PDSCH.

For example, if the terminal device determines (for example, can be determined by scheduling the DCI of the second PDSCH) that the second PDSCH exists before decoding the first PDSCH or in the process of decoding the first PDSCH, the terminal device may abandon the second PDSCH. A PDSCH, that is, the first PDSCH is no longer decoded.

4) Do not store the data of the first PDSCH in the cache.

For example, if the terminal device determines (for example, can be determined by scheduling the DCI of the second PDSCH) that the above-mentioned second PDSCH exists before buffering the first PDSCH or in the process of buffering the first PDSCH, the terminal device can abandon the first PDSCH , That is, the first PDSCH is no longer cached.

Optionally, in this embodiment of the application, the terminal device does not calculate the number of transmissions for the transport block (transport block, TB) in the first PDSCH, that is, the terminal device counts the number of transmissions of the TB at the MAC layer The number of this transmission is not counted from time to time. And, the network device does not calculate the number of transmissions for the TB in the first PDSCH, that is, the network device does not count the number of transmissions of the TB at the MAC layer. At this time, the transmission of the TB in the first PDSCH may be the first transmission or repeated transmission.

Specifically, since the first PDSCH is discarded, the terminal device does not obtain the TB carried in the first PDSCH, and there is no need to calculate the number of transmissions for the TB, which can ensure that the TB in the first PDSCH can still be the largest Is transmitted a certain number of times.

For example, the maximum number of transmissions of a TB is 4, and if the first PDSCH has been transmitted twice before the first PDSCH is abandoned, the number of transmissions of the TB is still twice.

In the embodiment of the present application, when the TB for the first PDSCH is not counted as the number of transmissions, the existing number of transmissions can be retained, so as to prevent the data that has been sent (for example, the initial transmission) from becoming invalid information. Avoid waste of resources. Of course, in the embodiment of the application, the data that has been transmitted can also be cleared, that is, the information related to the first HARQ process is cleared. At this time, the corresponding TB needs to be transmitted again according to the maximum number of transmissions. This is not particularly limited.

Optionally, in this embodiment of the application, in the case of abandoning the first PDSCH, the terminal device and the network device may retain the media access control (Media Access Control, MAC) layer information for the TB of the first PDSCH. When this network device retransmits the TB, the network device can understand the data volume and scheduling situation in real time at the MAC layer, so that it can quickly group packets, which is beneficial to improve transmission efficiency. For the terminal device, the existing information of the MAC layer for the TB can be obtained, which helps reduce the complexity of the terminal device. Of course, in the embodiment of the present application, the terminal device and the network device may also clear all the information of the HARQ process of the first PDSCH, which is not particularly limited in the embodiment of the present application.

In 240, when a preset condition is met, the network device determines that the first PDSCH is abandoned by the terminal device.

Specifically, the terminal device can abandon the first PDSCH according to a preset condition, and for the network device, the network device can determine that the first PDSCH is occupied by the terminal device according to the same preset condition when the preset condition is satisfied. Give up, which can ensure that the terminal equipment and the network equipment understand the same.

After the network device schedules the PDSCH, the terminal device can send feedback information for the scheduled PDSCH. The feedback information can be positive acknowledgement (ACK) information or negative acknowledgement (Negative-Acknowledgement, NACK) (A/N), The feedback information of multiple terminal devices can be multiplexed and transmitted, that is, the feedback information of multiple terminal devices can be cascaded to generate a feedback sequence, which is sent through a physical channel (for example, Physical Uplink Control Channel (PUCCH)) The feedback sequence.

The feedback sequence in the embodiment of the present application may be generated using a semi-static HARQ codebook (which may be referred to as a type-1 HARQ-ACK codebook). The number of bits of feedback information included in the semi-static HARQ codebook may be determined according to semi-statically configured parameters (HARQ timing set, PDSCH-Time Domain Resource Allocation List, etc.). The bits contained in the semi-static codebook correspond to each physical resource capable of transmitting the PDSCH in the semi-statically configured window. The actual number of scheduled PDSCHs may be less than or equal to the number of physical resources that can transmit PDSCHs in the window. For a certain physical resource that can transmit PDSCH, if the terminal device does not receive the DCI format 1_0 or DCI format 1_1 scheduled to transmit PDSCH on the resource, the terminal device can set NACK on the bit corresponding to the resource; otherwise Set the actual decoding result on the corresponding bit.

In other words, the number of bits of the feedback sequence carried in a PUCCH may be determined in a semi-static manner, regardless of the actual scheduling situation. The number of bits of the feedback sequence carried by one PUCCH may be determined based on a semi-statically configured time window.

For example, as shown in Figure 4, the time window can be from time slot n to time slot n+7, and the feedback sequence can include 8 bits (at this time, assume that the number of TBs of a PDSCH is 1 and the feedback information is Based on the feedback information of TB), for the time slots where no PDSCH is sent, place information (for example, NACK information) can be set in the feedback sequence, and the feedback sequence can be {NACK, b1, NACK, NACK, b2, b3, b4 ,NACK}, where bi represents the decoding result of PDSCHi.

Alternatively, the HARQ feedback sequence in the embodiment of the present application may also be generated based on a dynamic HARQ codebook (which may be referred to as a type-2 HARQ-ACK codebook), and the terminal device may determine the number of bits of the feedback information according to the scheduling situation of the network device. This can reduce feedback overhead. In this method, the terminal device may determine the number of PDSCH actually scheduled according to the downlink assignment index (ie, Downlink assignment index, DAI) in the DCI. Each bit in the feedback sequence corresponds to the actual decoding result for PDSCH. Taking the scenario shown in FIG. 4 as an example, when generating a feedback sequence based on a dynamic codebook, the feedback sequence can be {b1, b2, b3, b4}.

The above describes how the feedback sequence is generated, and the following describes how to handle the feedback information of the first PDSCH that is abandoned.

In an implementation manner, when the feedback information of the first PDSCH is not multiplexed and transmitted with feedback information of other PDSCHs, the terminal device does not send feedback information for the first PDSCH. Correspondingly, for the network device, when the feedback information of the first PDSCH is not multiplexed and transmitted with the feedback information of other PDSCHs, the network device does not detect the feedback information for the first PDSCH.

Specifically, when the terminal device abandons the first PDSCH based on a preset condition, and when the network device learns that the first PDSCH is abandoned based on the same preset condition, the network device may not need to obtain the feedback information of the first PDSCH at this time. If the feedback information of the first PDSCH does not need to be multiplexed with the feedback information of other PDSCHs, the terminal device may not send the feedback information of the first PDSCH, and the network device does not detect the first PDSCH, thereby reducing the need for terminal equipment And the processing burden of network equipment, and can avoid the waste of resources. The feedback resource of the first PDSCH (that is, the resource carrying the feedback information of the first PDSCH) can be used for other purposes. For example, it can be rescheduled by the network device, or the terminal device and the network device can be agreed in advance. In the above case, the feedback resource of the first PDSCH needs to be transmitted.

Optionally, in the embodiment of the present application, when multiple PDSCHs that need to multiplex and transmit feedback information are all abandoned PDSCHs, the terminal device does not send feedback information of the multiple PDSCHs, and the multiple PDSCHs Including the first PDSCH. Correspondingly, for a network device, when multiple PDSCHs that need to multiplex and transmit feedback information are abandoned PDSCHs, the network device does not detect the feedback information of the multiple PDSCHs, and the multiple PDSCHs include all PDSCHs. The first PDSCH.

Specifically, if multiple PDSCHs that need to be multiplexed to transmit feedback information are discarded, when the processing rule for discarding PDSCH is determined, the network device can learn which PDSCHs are discarded, and the terminal device does not need to feed back the cascade to the network device. Multiple feedback sequences of PDSCH feedback information are provided, and the network device does not need to detect the feedback sequence, so that the processing burden of the terminal device and the network device can be reduced, and the waste of resources can be avoided. The feedback resource originally used to carry the feedback sequence can be used for other purposes, for example, it can be rescheduled by the network device, or the terminal device and the network device can pre-arrange the information that the feedback resource needs to transmit in the above situation. .

For example, as shown in Figure 5, the terminal device receives DCI1, DCI2, and DCI3 scheduled by the network device. The DCI1, DCI2, and DCI3 are used to schedule PDSCH1, PDSCH2, and PDSCH3, respectively. The PDSCH1, PDSCH2, and PDSCH3 occupy time slot n+1. , Time slot n+4 and time slot n+5, the feedback information of the three PDSCHs needs to be multiplexed and transmitted, and the three PDSCHs are all abandoned, then the feedback information of the three PDSCHs can be abandoned. If it is sent, and the feedback sequence is generated according to the semi-static codebook, the feedback sequence can be {NACK, NACK, NACK, NACK, NACK, NACK, NACK, NACK}, this feedback sequence is for network equipment meaningless.

Optionally, in the embodiment of the present application, when at least one PDSCH of multiple PDSCHs that need to be multiplexed to transmit feedback information has not been abandoned, and includes the abandoned PDSCH, the terminal device needs to send the feedback sequence, because except For abandoned PDSCHs, there are still unabandoned PDSCHs, and the network equipment needs to know the reception status of these unabandoned PDSCHs. The following will introduce two ways to generate the feedback sequence in this case.

In implementation A), the terminal device generates and transmits a first feedback sequence, the first feedback sequence includes feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH. Correspondingly, for the network device, the network device receives the first feedback sequence.

That is to say, in the first feedback sequence, the PDSCH that has not been abandoned corresponds to a bit position, and the abandoned PDSCH also corresponds to a bit position. The abandoned PDSCH does not cancel its corresponding bit in the feedback sequence due to being abandoned. position. Among them, the abandoned PDSCH, for example, the feedback information of the first PDSCH may be occupancy information (for example, NACK information, or ACK information), which can be understood as the bit position of the first PDSCH in the first feedback sequence The carried information is set as placeholder information.

For example, as shown in Figure 6, the terminal device receives DCI1, DCI2, and DCI3 scheduled by the network device. The DCI1, DCI2, and DCI3 are used to schedule PDSCH1, PDSCH2, and PDSCH3, respectively. The PDSCH1, PDSCH2, and PDSCH3 occupy time slot n+1. , Time slot n+4 and time slot n+5, the feedback information of the three PDSCHs needs to be multiplexed and transmitted, and PDSCH1 and PDSCH2 are discarded. If the feedback sequence is generated according to the semi-static codebook, the feedback sequence can be It is {NACK, NACK, NACK, NACK, NACK, b3, NACK, NACK}. If the feedback sequence is generated according to a dynamic codebook, the feedback sequence can be {NACK, NACK, b3}.

Optionally, the first feedback sequence is transmitted on a first PUCCH resource; wherein, the first PUCCH resource is indicated by scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs.

Specifically, multiple PDSCHs requiring multiplexed transmission of feedback information are separately scheduled by multiple DCIs, and the PUCCH resource of the multiplexed transmission feedback information can be indicated by the last DCI among multiple DCIs. If the PDSCH scheduled by the last DCI is scheduled If abandoning, the PUCCH resource indicated by another DCI may be used to send the feedback information requiring multiplexed transmission, where the other DCI may be the last DCI among multiple DCIs: the PDSCH scheduled by the DCI is not abandoned. At this time, the resource indicated by the last DCI corresponding to the abandoned PDSCH can be used for other purposes. For example, it can be rescheduled by the network device, or the terminal device and the network device can agree in advance. PDSCH feedback resources need to transmit information.

Or, in the embodiment of the present application, the PUCCH resource information field in the DCI corresponding to the abandoned PDSCH may still be valid, that is, the feedback resource indicated by the DCI corresponding to the abandoned PDSCH can still be used to send the feedback sequence , The resource location occupied by the required feedback sequence will not be affected because the PDSCH is abandoned. For example, when the DCI corresponding to the abandoned PDSCH is the last DCI among the DCIs corresponding to multiple PDSCHs that need to multiplex and transmit feedback information, the feedback resource indicated by the DCI corresponding to the abandoned PDSCH is still used to perform the first feedback Sequence of transmission.

In the implementation manner B), the terminal device generates and transmits a second feedback sequence, and the second feedback sequence includes the feedback information of the at least one PDSCH and does not include the feedback information of the abandoned PDSCH.

That is to say, in the second feedback sequence, the PDSCH that has not been abandoned corresponds to a bit position, and the abandoned PDSCH does not correspond to a bit position, and the abandoned PDSCH has been abandoned and its corresponding bit position in the feedback sequence is cancelled. .

For example, as shown in Figure 6, the terminal device receives DCI1, DCI2, and DCI3 scheduled by the network device. The DCI1, DCI2, and DCI3 are used to schedule PDSCH1, PDSCH2, and PDSCH3, respectively. The PDSCH1, PDSCH2, and PDSCH3 occupy time slot n+1. , Time slot n+4 and time slot n+5, the feedback information of the three PDSCHs needs to be multiplexed and transmitted, and PDSCH1 and PDSCH2 are discarded. If the feedback sequence is generated according to the semi-static codebook, the feedback sequence can be It is {NACK, NACK, NACK, b3, NACK, NACK}. If the feedback sequence is generated according to a dynamic codebook, the feedback sequence can be {b3}.

Wherein, the second feedback sequence is transmitted on a second PUCCH resource; where the second PUCCH resource is indicated by scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs.

Specifically, multiple PDSCHs requiring multiplexed transmission of feedback information are separately scheduled by multiple DCIs, and the PUCCH resource of the multiplexed transmission feedback information can be indicated by the last DCI among multiple DCIs. If the PDSCH scheduled by the last DCI is scheduled If abandoning, the PUCCH resource indicated by another DCI may be used to send the feedback information requiring multiplexed transmission, where the other DCI may be the last DCI among multiple DCIs: the PDSCH scheduled by the DCI is not abandoned. At this time, the resource indicated by the last DCI corresponding to the abandoned PDSCH can be used for other purposes. For example, it can be rescheduled by the network device, or the terminal device and the network device can agree in advance that the first PDSCH The feedback resources need to transmit information.

Or, in the embodiment of the present application, the PUCCH resource information field in the DCI corresponding to the abandoned PDSCH may still be valid, that is, the feedback resource indicated by the DCI corresponding to the abandoned PDSCH can still be used to send the feedback sequence , The resource location occupied by the required feedback sequence will not be affected because the PDSCH is abandoned. For example, when the DCI corresponding to the abandoned PDSCH is the last DCI among the DCIs corresponding to multiple PDSCHs that need to multiplex and transmit feedback information, the feedback resource indicated by the DCI corresponding to the abandoned PDSCH is still used to perform the second feedback Sequence of transmission.

Optionally, in this embodiment of the present application, the counting information in the DAI information field of the sixth PDSCH scheduling signaling does not count and accumulate the transmission of the first PDSCH, where the sixth PDSCH is the The PDSCH after the first PDSCH among the multiple PDSCHs.

Specifically, the DCI signaling may have a DAI information field. The DAI information field may count the transmitted PDSCH (including the PDSCH scheduled by the DCI), and the count may be used by the terminal device to determine whether the feedback information of the PDSCH scheduled by the DCI is in The bit position of the feedback sequence and the total number of bits that can be used to determine the feedback sequence. When a certain PDSCH is abandoned, one scheduling of the PDSCH may not be accumulated in the DCI corresponding to the PDSCH after the PDSCH.

For example, PDSCH1 is abandoned, the count value of the DAI information field in the scheduling signaling of PDSCH1 is 5, and the count value of the DAI information field of the DCI corresponding to the next PDSCH2 of PDSCH1 may still be 5. The network device can instruct the terminal device to send the feedback sequence when the DAI information field is 7, then the terminal device can cascade the feedback information of the PDSCH with a value of 1 to 7 in the DAI information field to generate a feedback sequence, and the feedback sequence There is no bit position corresponding to PDSCH1.

Or, in the embodiment of the present application, even if a certain PDSCH is abandoned, the count in the DAI information field in the DCI corresponding to the PDSCH is still valid.

For example, PDSCH1 is abandoned, the count value of the DAI information field in the scheduling signaling of PDSCH1 is 5, and the count value of the DAI information field of the DCI corresponding to the next PDSCH2 of PDSCH1 may be 6. The network device can instruct the terminal device to send a feedback sequence when the DAI information field is 8, then the terminal device can cascade the feedback information of PDSCH with a value of 1 to 8 in the DAI information field to generate a feedback sequence, and the feedback sequence There is a bit position corresponding to PDSCH1.

Optionally, in this embodiment of the present application, the network device sends a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH; the terminal device receives the third PDSCH , Wherein the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

Wherein, the time domain position of the third PDSCH is before the time domain position of the feedback resource of the first PDSCH; and/or,

The time domain position of the third PDSCH is after the time domain position of the second PDSCH mentioned above.

Specifically, after the terminal device discards the first PDSCH, the network device can retransmit the TB included in the first PDSCH through the third PDSCH, and the terminal device can obtain the retransmitted TB through the third PDSCH. In order to reduce the transmission delay, the terminal device Obtain the TB as soon as possible, and the transmission of the third PDSCH can be before the feedback resource of the first PDSCH, so that HARQ can be quickly reused, which is beneficial to reduce transmission delay and improve scheduling flexibility. And in order to prevent the first PDSCH from being abandoned due to transmission of the second PDSCH, the third PDSCH may be made after the second PDSCH.

Wherein, the time domain position of the third PDSCH before the time domain position of the feedback resource of the first PDSCH may include any of the following situations:

The time domain start position of the third PDSCH is before the time domain start position of the first PDSCH feedback resource. At this time, the time domain end position of the third PDSCH may be in the time domain of the first PDSCH feedback resource. Before or after the end position, or, the time domain end position of the third PDSCH may be equal to the time domain start position of the feedback resource of the first PDSCH;

The time domain end position of the third PDSCH is before the time domain end position of the first PDSCH feedback resource. At this time, the time domain start position of the third PDSCH may start from the time domain of the first PDSCH feedback resource. Before or after the start position, or, the time domain start position of the third PDSCH may be equal to the time domain start position of the feedback resource of the first PDSCH;

The time domain start position of the third PDSCH is before the time domain start position of the feedback resource of the first PDSCH, and the time domain end position of the third PDSCH is before the time domain end position of the first PDSCH feedback resource ；

The time domain end position of the third PDSCH is before the time domain start position of the feedback resource of the first PDSCH, and there may be a certain time delay between the two. In this case, the first PDSCH The feedback resource sends feedback information of the third PDSCH.

And, the time domain position of the third PDSCH after the time domain position of the second PDSCH mentioned above may include any of the following situations:

The time domain start position of the third PDSCH is after the time domain start position of the second PDSCH. At this time, the time domain end position of the third PDSCH can be before or after the time domain end position of the second PDSCH. The time domain end position may be equal to the time domain end position of the second PDSCH;

The time domain end position of the third PDSCH is after the time domain end position of the second PDSCH. At this time, the time domain start position of the third PDSCH may be before or after the time domain start position of the second PDSCH. The time domain start position may be equal to the time domain start position of the second PDSCH;

The time domain start position of the third PDSCH is after the time domain start position of the second PDSCH, and the time domain end position of the third PDSCH is after the time domain end position of the second PDSCH;

The time domain start position of the third PDSCH is after the time domain end position of the second PDSCH.

Optionally, in the embodiment of the present application, the network device sends a fourth PDSCH, and the fourth PDSCH is the first after the first PDSCH and has the same first HARQ process number as the first PDSCH According to the NDI corresponding to the fifth PDSCH, the network device flips the new data indication NDI corresponding to the fourth PDSCH, where the fifth PDSCH is the last one before the first PDSCH with the first PDSCH of the process ID.

Correspondingly, for the terminal device, the terminal device receives a fourth PDSCH, and the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH The terminal device determines whether the new data corresponding to the fourth PDSCH indicates whether the NDI is flipped relative to the NDI corresponding to the fifth PDSCH, wherein the fifth PDSCH is the last one before the first PDSCH with the first The PDSCH of a process number.

This method may be applicable to the situation of clearing the HARQ process corresponding to the first PDSCH. As mentioned above, the terminal equipment and the network equipment clear all the information corresponding to the first PDSCH, which helps reduce the implementation complexity.

For example, as shown in Figure 7, the PDSCH2 of the HARQ process X is abandoned, and the NDI of the TB in the PDSCH2 is 1, and the PDSCH1 is scheduled before the PDSCH2, the HARQ process of the PDSCH1 is also X, and the corresponding NDI= 0. After the terminal device abandons PDSCH2, the network device schedules PDSCH3. The TB in PDSCH3 is a new TB compared to PDSCH1 and PDSCH2 (it may be because the HARQ process of PDSCH2 is cleared, making PDSCH3 appear to be transmitting new TB), the NDI of PDSCHI can be used as a reference to determine the NDI of the TB of PDSCH3. At this time, the NDI corresponding to the TB in PDSCH3 can be equal to 1.

Alternatively, in the embodiment of the present application, the network device may also flip the new data indication NDI corresponding to the fourth PDSCH according to the NDI corresponding to the first PDSCH.

For example, as shown in Figure 8, the PDSCH2 of the HARQ process X is abandoned, and the NDI of the TB in the PDSCH2 is 1, and the PDSCH1 is scheduled before the PDSCH2. The HARQ process of the PDSCH1 is also X, and the corresponding NDI= 0. After the terminal device abandons PDSCH2, the network device schedules PDSCH3. The TB in PDSCH3 is a new TB compared to PDSCH1 and PDSCH2 (it may be because the HARQ process of PDSCH2 is cleared, making PDSCH3 appear to be transmitting new TB), the NDI of PDSCH2 can be used as a reference to determine the NDI of TB of PDSCH3. At this time, the NDI corresponding to TB in PDSCH3 can be equal to 0.

It should be understood that the size of the sequence number of each step in the method 200 does not represent the order of execution, and the specific execution order may be determined according to actual conditions. For example, 240 may be executed before 230.

Therefore, in the embodiment of the present application, the terminal device receives the instruction information sent by the network device, and the instruction information indicates the resource of the first PDSCH. When the predetermined condition is met, the terminal device can abandon the first PDSCH, so that the terminal device can respond to the PDSCH. Flexible handling.

FIG. 9 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application. The terminal device 300 includes a communication unit 310 and a processing unit 320; among them,

The communication unit 310 is configured to receive indication information, where the indication information is used to indicate resources occupied by the first physical downlink shared channel PDSCH;

The processing unit 320 is configured to abandon the first PDSCH when the preset condition is met.

Optionally, in the embodiment of the present application, the preset condition includes:

The terminal device receives the second PDSCH;

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, or,

The time domain position of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.

Optionally, in the embodiment of the present application, the preset condition further includes:

The priority of the second PDSCH is higher than the priority of the first PDSCH.

Optionally, in the embodiment of the present application, the communication unit 310 is further configured to:

Receiving a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

The time domain position of the third PDSCH is after the time domain position of the second PDSCH.

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, Or, the time domain resource of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.

Receiving a fourth PDSCH, where the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH;

The terminal device determines whether the new data corresponding to the fourth PDSCH indicates whether the NDI is inverted with respect to the NDI corresponding to the fifth PDSCH, where the fifth PDSCH is the last one before the first PDSCH with the first PDSCH of the process ID.

Optionally, in the embodiment of the present application, the processing unit 320 is further configured to:

Notifying the communication unit 310 to stop receiving the first PDSCH; or

Stop demodulating the first PDSCH; or

Stop decoding the first PDSCH; or

Not storing the data of the first PDSCH in the cache;

For the TB in the first PDSCH, the number of transmissions is not calculated.

Optionally, in this embodiment of the present application, the processing unit 310 is further configured to:

When the feedback information of the first PDSCH is not multiplexed and transmitted with the feedback information of other PDSCHs, the communication unit 320 is notified not to send the feedback information for the first PDSCH.

When multiple PDSCHs that need to multiplex and transmit feedback information are all abandoned PDSCHs, the communication unit 320 is notified not to send feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit 320 is notified to transmit the first feedback sequence, and the first feedback sequence includes the multiple PDSCH feedback information, The multiple PDSCHs include the first PDSCH.

Optionally, in this embodiment of the present application, the feedback information of the first PDSCH is occupancy information.

Optionally, in this embodiment of the application, the first feedback sequence is transmitted on a first PUCCH resource; wherein, the first PUCCH resource is indicated by scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs.

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit 320 is notified to transmit a second feedback sequence. The second feedback sequence includes the feedback information of the at least one PDSCH and does not include Feedback information of the abandoned PDSCH, where the abandoned PDSCH includes the first PDSCH.

Optionally, in this embodiment of the present application, the second feedback sequence is transmitted on a second PUCCH resource; wherein, the second PUCCH resource is indicated by scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs.

It should be understood that the terminal device 300 can be used to implement the corresponding operations implemented by the terminal device in the foregoing method embodiments, which are concise as an example, and will not be repeated here.

FIG. 10 is a schematic block diagram of a network device 400 according to an embodiment of the present application. The network device 400 includes a communication unit 410 and a processing unit 420.

The communication unit 410 is configured to send indication information, where the indication information is used to indicate resources occupied by the first physical downlink shared channel PDSCH;

The processing unit 420 is configured to: when a preset condition is met, determine that the first PDSCH is abandoned by the terminal device.

The network device sends the second PDSCH;

Optionally, in the embodiment of the present application, the communication unit 410 is further configured to:

Sending a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

The time domain position of the third PDSCH is after the time domain position of the second PDSCH, where

Sending a fourth PDSCH, where the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH;

The processing unit 420 is further configured to: flip the new data indication NDI corresponding to the fourth PDSCH according to the NDI corresponding to the fifth PDSCH, where the fifth PDSCH is the last one before the first PDSCH with the The PDSCH of the first process number.

Optionally, in this embodiment of the present application, the processing unit 420 is further configured to:

For the TB in the first PDSCH, the number of transmissions is not calculated.

Optionally, in this embodiment of the present application, the processing unit 410 is further configured to:

When the feedback information of the first PDSCH is not multiplexed and transmitted with feedback information of other PDSCHs, the communication unit 420 is notified not to detect the feedback information for the first PDSCH.

When multiple PDSCHs requiring multiplexed transmission of feedback information are all abandoned PDSCHs, the communication unit 420 is notified not to detect the feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit 420 is notified to receive a first feedback sequence, and the first feedback sequence includes feedback information of the multiple PDSCHs. The multiple PDSCHs include the first PDSCH.

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, notify the communication unit 420 to receive a second feedback sequence. The second feedback sequence includes the feedback information of the at least one PDSCH and does not include Feedback information of the abandoned PDSCH, where the abandoned PDSCH includes the first PDSCH.

It should be understood that the network device 400 may be used to implement the corresponding operations implemented by the network device in the foregoing method embodiments. The example is succinct and will not be repeated here.

FIG. 11 is a schematic structural diagram of a communication device 500 provided by an embodiment of the present application. The communication device 500 shown in FIG. 11 includes a processor 510, and the processor 510 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 11, the communication device 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, as shown in FIG. 11, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Among them, the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 500 may specifically be a network device in an embodiment of the present application, and the communication device 500 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .

Optionally, the communication device 500 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 500 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For simplicity , I won’t repeat it here.

FIG. 12 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in FIG. 12 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 12, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, the communication device 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the communication device 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the communication device may be applied to the network device in the embodiment of the present application, and the communication device may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not described herein again.

Optionally, the communication device 600 can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the communication device 600 can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. It's concise, so I won't repeat it here.

It should be understood that the communication device 600 mentioned in the embodiment of the present application may be a chip, and the chip may also be called a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (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 connection dynamic random access memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (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 connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I will not repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Repeat it again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

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

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: 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 code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A communication method, characterized in that it comprises:

The terminal device receives indication information, where the indication information is used to indicate the resources occupied by the first physical downlink shared channel PDSCH;

When the preset condition is met, the terminal device abandons the first PDSCH.
The method according to claim 1, wherein the preset condition comprises:

The terminal device receives the second PDSCH;

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, or,

The time domain position of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The method according to claim 2, wherein the preset condition further comprises:

The priority of the second PDSCH is higher than the priority of the first PDSCH.
The method according to any one of claims 1 to 3, wherein the method further comprises:

The terminal device receives a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

Wherein, the time domain position of the third PDSCH is before the time domain position of the feedback resource of the first PDSCH; and/or,

The time domain position of the third PDSCH is after the time domain position of the second PDSCH, where

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, Or, the time domain resource of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The method according to any one of claims 1 to 4, wherein the method further comprises:

Receiving, by the terminal device, a fourth PDSCH, where the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH;

The terminal device determines whether the new data corresponding to the fourth PDSCH indicates whether the NDI is inverted with respect to the NDI corresponding to the fifth PDSCH, where the fifth PDSCH is the last one before the first PDSCH with the first PDSCH of the process ID.
The method according to any one of claims 1 to 5, wherein the abandoning of the first PDSCH by the terminal device comprises:

Stop receiving the first PDSCH; or

Stop demodulating the first PDSCH; or

Stop decoding the first PDSCH; or

The data of the first PDSCH is not stored in the cache.
The method according to any one of claims 1 to 6, wherein the method further comprises:

The terminal device does not calculate the number of transmissions for the transmission block TB in the first PDSCH.
The method according to any one of claims 1 to 7, wherein the method further comprises:

When the feedback information of the first PDSCH is not multiplexed and transmitted with feedback information of other PDSCHs, the terminal device does not send the feedback information for the first PDSCH.
The method according to any one of claims 1 to 8, wherein the method further comprises:

When multiple PDSCHs requiring multiplexed transmission of feedback information are abandoned PDSCHs, the terminal device does not send feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.
The method according to any one of claims 1 to 8, wherein the method further comprises:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the terminal device transmits a first feedback sequence, and the first feedback sequence includes feedback information of the multiple PDSCHs. The PDSCH includes the first PDSCH.
The method according to claim 10, wherein the feedback information of the first PDSCH is occupancy information.
The method according to claim 10 or 11, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein, the first PUCCH resource is determined by scheduling information of a PDSCH that is not abandoned among multiple PDSCHs. Ordered.
The method according to any one of claims 1 to 8, wherein the method further comprises:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the terminal device transmits a second feedback sequence. The second feedback sequence includes the feedback information of the at least one PDSCH and does not include the abandoned PDSCH feedback information, the abandoned PDSCH includes the first PDSCH.
The method according to claim 13, wherein the second feedback sequence is transmitted on a second PUCCH resource; wherein, the second PUCCH resource is indicated by scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs of.
The method according to any one of claims 1 to 14, wherein the counting information in the DAI information field of the scheduling signaling of the sixth PDSCH does not count and accumulate the transmission of the first PDSCH, wherein, The sixth PDSCH is a PDSCH after the first PDSCH in the plurality of PDSCHs.
A communication method, characterized in that it comprises:

The network device sends instruction information, where the instruction information is used to indicate resources occupied by the first physical downlink shared channel PDSCH;

When the preset condition is met, the network device determines that the first PDSCH is abandoned by the terminal device.
The method according to claim 16, wherein the preset condition comprises:

The network device sends the second PDSCH;

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, or,

The time domain position of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The method according to claim 17, wherein the preset condition further comprises:

The priority of the second PDSCH is higher than the priority of the first PDSCH.
The method according to any one of claims 16 to 18, wherein the method further comprises:

The network device sends a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

Wherein, the time domain position of the third PDSCH is before the time domain position of the feedback resource of the first PDSCH; and/or,

The time domain position of the third PDSCH is after the time domain position of the second PDSCH, where

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, Or, the time domain resource of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The method according to any one of claims 16 to 19, wherein the method further comprises:

Sending, by the network equipment, a fourth PDSCH, where the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH;

According to the NDI corresponding to the fifth PDSCH, the network device overturns the new data indication NDI corresponding to the fourth PDSCH, where the fifth PDSCH is the last one with the first process number before the first PDSCH PDSCH.
The method according to any one of claims 16 to 20, wherein the method further comprises:

The network device does not calculate the number of transmissions for the TB in the first PDSCH.
The method according to any one of claims 16 to 21, wherein the method further comprises:

When the feedback information of the first PDSCH is not multiplexed with feedback information of other PDSCHs for transmission, the network device does not detect the feedback information for the first PDSCH.
The method according to any one of claims 16 to 21, wherein the method further comprises:

When multiple PDSCHs that need to multiplex and transmit feedback information are abandoned PDSCHs, the network device does not detect the feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.
The method according to any one of claims 16 to 23, wherein the method further comprises:

When at least one PDSCH of multiple PDSCHs that need to multiplex and transmit feedback information has not been abandoned, the network device receives a first feedback sequence, and the first feedback sequence includes feedback information of the multiple PDSCHs. The PDSCH includes the first PDSCH.
The method according to claim 24, wherein the feedback information of the first PDSCH is occupancy information.
The method according to claim 24 or 25, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein, the first PUCCH resource is determined by the scheduling information of the PDSCH that is not abandoned among multiple PDSCHs. Ordered.
The method according to any one of claims 16 to 23, wherein the method further comprises:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that is not abandoned, the network device receives a second feedback sequence, where the second feedback sequence includes feedback information of the at least one PDSCH and does not include abandoned PDSCH feedback information, the abandoned PDSCH includes the first PDSCH.
The method according to claim 27, wherein the second feedback sequence is transmitted on a second PUCCH resource; wherein, the second PUCCH resource is indicated by scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs of.
The method according to any one of claims 16 to 28, wherein the count information in the DAI information field of the sixth PDSCH scheduling signaling does not accumulate the count of the transmission of the first PDSCH, wherein, The sixth PDSCH is a PDSCH after the first PDSCH in the plurality of PDSCHs.
A terminal device, which is characterized by comprising a communication unit and a processing unit; wherein,

The communication unit is configured to receive indication information, where the indication information is used to indicate resources occupied by the first physical downlink shared channel PDSCH;

The processing unit is configured to abandon the first PDSCH when the preset condition is met.
The terminal device according to claim 30, wherein the preset condition comprises:

The terminal device receives the second PDSCH;

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, or,

The time domain position of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The terminal device according to claim 31, wherein the preset condition further comprises:

The priority of the second PDSCH is higher than the priority of the first PDSCH.
The terminal device according to any one of claims 30 to 32, wherein the communication unit is further configured to:

Receiving a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

Wherein, the time domain position of the third PDSCH is before the time domain position of the feedback resource of the first PDSCH; and/or,

The time domain position of the third PDSCH is after the time domain position of the second PDSCH, where

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, Or, the time domain resource of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The terminal device according to any one of claims 30 to 33, wherein the communication unit is further configured to:

Receiving a fourth PDSCH, where the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH;

The processing unit is further configured to determine whether the new data indicating NDI corresponding to the fourth PDSCH is inverted relative to the NDI corresponding to the fifth PDSCH, wherein the fifth PDSCH is the last one before the first PDSCH. The PDSCH of the first process number.
The terminal device according to any one of claims 30 to 34, wherein the abandoning the first PDSCH comprises:

Notifying the communication unit to stop receiving the first PDSCH; or

Stop demodulating the first PDSCH; or

Stop decoding the first PDSCH; or

The data of the first PDSCH is not stored in the cache.
The terminal device according to any one of claims 30 to 35, wherein the processing unit is further configured to:

For the TB in the first PDSCH, the number of transmissions is not calculated.
The terminal device according to any one of claims 30 to 36, wherein the processing unit is further configured to:

When the feedback information of the first PDSCH is not multiplexed and transmitted with the feedback information of other PDSCHs, the communication unit is notified not to send the feedback information for the first PDSCH.
The terminal device according to any one of claims 30 to 37, wherein the processing unit is further configured to:

When multiple PDSCHs requiring multiplexed transmission of feedback information are abandoned PDSCHs, the communication unit is notified not to send feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.
The terminal device according to any one of claims 30 to 37, wherein the processing unit is further configured to:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit is notified to transmit a first feedback sequence. The first feedback sequence includes feedback information of the multiple PDSCHs. Each PDSCH includes the first PDSCH.
The terminal device according to claim 39, wherein the feedback information of the first PDSCH is occupancy information.
The terminal device according to claim 39 or 40, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein, the first PUCCH resource is scheduled by a PDSCH that is not abandoned among multiple PDSCHs Signaling instructions.
The terminal device according to any one of claims 30 to 37, wherein the processing unit is further configured to:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit is notified to transmit a second feedback sequence. The second feedback sequence includes the feedback information of the at least one PDSCH and does not include the Feedback information of the abandoned PDSCH, where the abandoned PDSCH includes the first PDSCH.
The terminal device according to claim 42, wherein the second feedback sequence is transmitted on a second PUCCH resource; wherein, the second PUCCH resource consists of scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs Indicated.
The terminal device according to any one of claims 30 to 43, wherein the counting information in the DAI information field of the scheduling signaling of the sixth PDSCH does not accumulate the transmission of the first PDSCH, wherein , The sixth PDSCH is a PDSCH after the first PDSCH in the plurality of PDSCHs.
A network device, characterized in that it comprises a communication unit and a processing unit; wherein,

The communication unit is configured to send indication information, where the indication information is used to indicate resources occupied by the first physical downlink shared channel PDSCH;

The processing unit is configured to: when a preset condition is satisfied, determine that the first PDSCH is abandoned by the terminal device.
The network device according to claim 45, wherein the preset condition comprises:

The network device sends the second PDSCH;

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, or,

The time domain position of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The network device according to claim 46, wherein the preset condition further comprises:

The priority of the second PDSCH is higher than the priority of the first PDSCH.
The network device according to any one of claims 45 to 47, wherein the communication unit is further configured to:

Sending a third PDSCH, where the third PDSCH is used to retransmit the transport block TB in the first PDSCH;

Wherein, the time domain position of the third PDSCH is before the time domain position of the feedback resource of the first PDSCH; and/or,

The time domain position of the third PDSCH is after the time domain position of the second PDSCH, where

Where the time domain position of the second PDSCH is after the time domain position of the first PDSCH and the time domain position of the feedback resource of the second PDSCH is before the time domain position of the feedback resource of the first PDSCH, Or, the time domain resource of the second PDSCH and the time domain position of the first PDSCH at least partially overlap.
The network device according to any one of claims 45 to 48, wherein the communication unit is further configured to:

Sending a fourth PDSCH, where the fourth PDSCH is the first PDSCH after the first PDSCH that has the same first HARQ process number as the first PDSCH;

The processing unit is further configured to: flip the new data indication NDI corresponding to the fourth PDSCH according to the NDI corresponding to the fifth PDSCH, where the fifth PDSCH is the last one before the first PDSCH and has the first PDSCH of the process ID.
The network device according to any one of claims 45 to 49, wherein the processing unit is further configured to:

For the TB in the first PDSCH, the number of transmissions is not calculated.
The network device according to any one of claims 45 to 50, wherein the processing unit is further configured to:

When the feedback information of the first PDSCH is not multiplexed and transmitted with feedback information of other PDSCHs, the communication unit is notified not to detect the feedback information for the first PDSCH.
The network device according to any one of claims 45 to 50, wherein the processing unit is further configured to:

When multiple PDSCHs for which feedback information needs to be multiplexed and transmitted are all abandoned PDSCHs, the communication unit is notified not to detect feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.
The network device according to any one of claims 45 to 52, wherein the processing unit is further configured to:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit is notified to receive a first feedback sequence, and the first feedback sequence includes feedback information of the multiple PDSCHs. Each PDSCH includes the first PDSCH.
The network device according to claim 53, wherein the feedback information of the first PDSCH is occupancy information.
The network device according to claim 53 or 54, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein, the first PUCCH resource is scheduled by a PDSCH that is not abandoned among multiple PDSCHs Signaling instructions.
The network device according to any one of claims 45 to 52, wherein the processing unit is further configured to:

When multiple PDSCHs that need to multiplex and transmit feedback information have at least one PDSCH that has not been abandoned, the communication unit is notified to receive a second feedback sequence. The second feedback sequence includes the feedback information of the at least one PDSCH and does not include the Feedback information of the abandoned PDSCH, where the abandoned PDSCH includes the first PDSCH.
The network device according to claim 56, wherein the second feedback sequence is transmitted on a second PUCCH resource; wherein, the second PUCCH resource consists of scheduling signaling of a PDSCH that is not abandoned among multiple PDSCHs Indicated.
The network device according to any one of claims 45 to 57, wherein the count information in the DAI information field of the sixth PDSCH scheduling signaling does not accumulate the count of the transmission of the first PDSCH, wherein , The sixth PDSCH is a PDSCH after the first PDSCH in the plurality of PDSCHs.
A terminal device, comprising: a processor, wherein the processor is used to call and run a computer program from a memory, so that the terminal device executes the method according to any one of claims 1 to 15 .
A network device, characterized by comprising: a processor, wherein the processor is used to call and run a computer program from a memory, so that the network device executes the method according to any one of claims 16 to 29 .
A communication device, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that the device installed with the communication device executes the method according to any one of claims 1 to 29.
A computer-readable storage medium, characterized in that it is used to store a computer program, and when the computer program runs on a terminal device, the terminal device executes the method according to any one of claims 1 to 15; or When the computer program runs on the network device, the network device executes the method according to any one of claims 16 to 29.
A computer program product, characterized by comprising computer program instructions, which when run on a terminal device, cause the terminal device to execute the method according to any one of claims 1 to 15; or when the computer When the program instructions run on the network device, the network device executes the method according to any one of claims 16 to 29.
A computer program, wherein when the computer program runs on a terminal device, the terminal device executes the method according to any one of claims 1 to 15; or when the computer program runs on a network device The network device is caused to execute the method according to any one of claims 16 to 29.