CN112042249B

CN112042249B - Communication method, terminal equipment and network equipment

Info

Publication number: CN112042249B
Application number: CN201980019186.6A
Authority: CN
Inventors: 林亚男; 徐婧
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2022-01-25
Anticipated expiration: 2039-04-03
Also published as: CN112042249A; WO2020199174A1

Abstract

The embodiment of the application provides a communication method, terminal equipment and network equipment, and the flexibility of communication can be improved in the processing method of the PDSCH. The method comprises the following steps: the method comprises the steps that terminal equipment receives indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH); and when a preset condition is met, the terminal equipment gives up the first PDSCH.

Description

Communication method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method, a terminal device, and a network device.

Background

In the communication system, the network device may schedule the terminal device, for example, the terminal device may be scheduled by Downlink Control Information (DCI) for a Physical Downlink Shared Channel (PDSCH).

With the development of communication systems, the requirement on the flexibility of communication is higher and higher, and how to improve the flexibility of communication in the aspect of processing the PDSCH is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a communication method, terminal equipment and network equipment, and the flexibility of communication can be improved in the processing method of the PDSCH.

In a first aspect, a communication method is provided, including: the method comprises the steps that terminal equipment receives indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH);

and when a preset condition is met, the terminal equipment gives up the first PDSCH.

In a second aspect, a communication method is provided, including: the network equipment sends indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH); when a preset condition is met, the network 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.

In particular, the terminal device comprises functional modules for performing the method in the first aspect described above.

In a fourth aspect, a network device is provided for performing the method of the second aspect.

In particular, the network device comprises functional modules for performing the method in the second aspect described above.

In a fifth aspect, a communication device is provided that includes a processor, a memory, and a transceiver. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method of the first aspect or the second aspect based on the transceiver.

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

Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs the method as in the first or second aspect described above based on the transceiver.

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

In an eighth aspect, there is provided a computer program product comprising computer program instructions which, when run on a terminal device, cause the terminal device to perform the method as described in the first aspect; or cause a network device to perform a method as described in the second aspect when the computer program instructions are run on the network device.

A ninth aspect provides a computer program which, when run on a computer, causes the terminal device to perform the method as set forth in the first aspect; or cause a network device to perform the method as described in the second aspect when the computer program is run on the network device.

Therefore, in the embodiment of the present application, the terminal device receives the indication information sent by the network device, where the indication information indicates the resource of the first PDSCH, and when the predetermined condition is satisfied, the terminal device may give up the first PDSCH, so that the terminal device may flexibly process the PDSCH, and thus, the flexibility of communication may be improved.

Drawings

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

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

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

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

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

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

Fig. 7 is an exemplary diagram of a New Data Indicator (NDI) flip of an embodiment of the present application.

Fig. 8 is a schematic diagram of NDI flipping of an embodiment of the present application.

Fig. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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

Illustratively, a 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 referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Alternatively, the Network device 110 may be an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Network device may 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 Network device in a Public Land Mobile Network (PLMN) for future evolution, and the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. The terminal device that the terminal device 120 and the network device 110 can communicate with each other through a wired connection or through a wireless connection and a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". The terminal device 120 may also be a mobile terminal, examples of which include, but are not limited to, a satellite or cellular telephone; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

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

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

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. 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 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 2 is a schematic flow chart diagram of a communication method 200 according to an embodiment of the present application. The method 200 includes at least some of the following.

In 210, the network device transmits 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 resource occupied by the first PDSCH in various ways.

In one implementation, the network device may indicate, through the DCI, the resource occupied by the first PDSCH, that is, the first PDSCH may be a dynamically scheduled PDSCH. Wherein, the DCI may be a DCI having a format of 1_0 or 1_ 1. The HARQ process number of the scheduled first PDSCH may be carried in the DCI.

In another implementation, the network device may indicate the resources occupied by the first PDSCH through higher layer signaling. Specifically, the network device may configure the semi-statically configured transmission resources of the PDSCH through higher layer signaling and further activate the semi-statically configured resources (which may also be understood as activating the PDSCH transmitted on the resources) through activation signaling (which may be, for example, higher layer signaling or physical layer signaling (e.g., DCI signaling)).

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

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

Processing (e.g., dropping), transmitting, detecting a channel (e.g., PDSCH) as referred to in embodiments of the present application may refer to dropping, transmitting, and detecting data or information carried in the channel.

The preset condition mentioned in the embodiment of the present application may be that the network device is configured to the terminal device, or may be preset on the terminal device based on a protocol.

Optionally, the preset conditions mentioned in the embodiments of the present application include: the terminal equipment receives a second PDSCH; wherein a time domain location of the second PDSCH is subsequent to a time domain location of the first PDSCH and a time domain location of feedback resources of the second PDSCH is prior to a time domain location of feedback resources of the first PDSCH.

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

For example, as shown in fig. 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 (the transmission of positive acknowledgement/negative acknowledgement (a/N) is not expected to be earlier than the transmission of feedback information of PDSCH 1.

For example, for a high-reliability Low latency Communications (URRLC) service, a lower transmission latency is expected compared to an enhanced Mobile bandwidth (eMBB) service, and when a terminal device supports both the eMBB and URLLC services, there may be a case where a PDSCH carrying eMBB data has completed transmission but corresponding feedback information has not been sent. At this time, the PDSCH carrying URLLC data has already reached, and according to the delay requirement of URLLC service, the feedback information of URLL data needs to be transmitted before the feedback information corresponding to the eMBB data.

To meet such a demand, the terminal device may transmit feedback information for a PDSCH scheduled later by abandoning a preceding PDSCH. For example, in the scenario shown in fig. 3, PDSCH1 may be dropped to enable support for sequential HARQ scheduling.

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

the time domain starting position of the second PDSCH is after the time domain starting position of the first PDSCH, at this time, the time domain ending position of the second PDSCH may be before or after the time domain ending position of the first PDSCH, or the time domain ending position of the second PDSCH is equal to the time domain ending position of the first PDSCH; alternatively, the first and second electrodes may be,

the time domain end position of the second PDSCH is after the time domain end position of the first PDSCH, and 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, and the time domain start position of the second PDSCH is equal to the time domain start position of the first PDSCH; alternatively, the first and second electrodes may be,

the time domain starting position of the second PDSCH is behind the time domain starting position of the first PDSCH, and the time domain ending position of the second PDSCH is behind the time domain ending position of the first PDSCH; alternatively, the first and second electrodes may be,

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

In the foregoing, a time domain position relationship that needs to be satisfied before the second PDSCH and the first PDSCH in the case of dropping the first PDSCH is mentioned, but the embodiment of the present application is not limited to this, and in the embodiment of the present application, the time domain position of the second PDSCH may at least partially overlap with the time domain position of the first PDSCH, and the terminal device may also drop the second PDSCH.

Specifically, since there is a collision between the first PDSCH and the second PDSCH in the time domain, if the terminal device has limited processing capability and can receive only one PDSCH at a time, the terminal device needs to discard one of the PDSCHs.

Optionally, in this embodiment, any second PDSCH satisfying the above condition may cause the first PDSCH to be discarded, or the received second PDSCH may further satisfy other conditions.

For example, the preset conditions may further include: the second PDSCH has a higher priority than the first PDSCH.

The priority of the PDSCH may be determined by the traffic carried by the PDSCH, for example, the priority of the PDSCH carrying URLLC traffic is higher than the priority of the PDSCH carrying eMBB traffic.

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

The preset condition for causing the first PDSCH to be discarded is mentioned above, and in addition to the above-mentioned preset condition, the embodiment of the present application may 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 drop the first PDSCH.

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

1) ceasing to receive the first PDSCH.

For example, if the terminal device determines (e.g., may determine by scheduling DCI of a second PDSCH) that the second PDSCH exists before or during the reception of the first PDSCH, the terminal device may drop the first PDSCH, i.e., no longer receive the first PDSCH.

2) Ceasing to demodulate the first PDSCH.

For example, if the terminal device determines (e.g., may determine by scheduling DCI of a second PDSCH) that the second PDSCH exists before or during demodulation of the first PDSCH, the terminal device may abandon the first PDSCH, i.e., no longer demodulate the first PDSCH.

3) Ceasing to decode the first PDSCH.

For example, if the terminal device determines (e.g., may determine by scheduling DCI of the second PDSCH) that the second PDSCH exists before or during the decoding of the first PDSCH, the terminal device may abandon the first PDSCH, i.e., no longer decode the first PDSCH.

4) Data of the first PDSCH is not stored in a buffer.

For example, if the terminal device determines (e.g., may determine by scheduling DCI of a second PDSCH) that the second PDSCH exists before or during the buffering of the first PDSCH, the terminal device may give up the first PDSCH, i.e., no longer buffer the first PDSCH.

Optionally, in this embodiment of the application, the terminal device does not calculate the transmission times for the Transport Block (TB) in the first PDSCH, that is, the terminal device does not count the transmission times of this time when the MAC layer counts the transmission times of the TB. And the network device does not calculate the transmission times for the TB in the first PDSCH, that is, the network device does not count the transmission times of the TB when the MAC layer counts the transmission times of the TB. At this time, the transmission of the TB in the first PDSCH may be an initial transmission or a repeated transmission.

Specifically, since the first PDSCH is abandoned, the terminal device does not acquire the TB carried in the first PDSCH, and the number of transmission times for the TB is not required to be calculated, so that it can be ensured that the TB in the first PDSCH can still be transmitted a certain number of times at maximum.

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

In the embodiment of the present application, when the number of transmissions is not counted for the TB of the first PDSCH, the existing number of transmissions may be reserved, so that it may be avoided that data (e.g., initial transmission) that has already been transmitted becomes invalid information, and thus, waste of resources may be avoided. Of course, in the embodiment of the present application, the data that has been transmitted may also be cleared, that is, the information related to the first HARQ process is cleared, and at this time, the corresponding TB needs to be transmitted again according to the maximum transmission frequency, which is not particularly limited in this embodiment of the present application.

Optionally, in this embodiment of the present application, in a case that the first PDSCH is discarded, the terminal device and the network device may retain information of a Media Access Control (MAC) layer of a TB of the first PDSCH, so that when the network device retransmits the TB, the network device may know a data amount and a scheduling condition in real time at the MAC layer, and thus, fast packet packing may be performed, which is beneficial to improving transmission efficiency. For the terminal device, the information existing for the TB by the MAC layer can be acquired, which is beneficial to reducing the complexity of the terminal device. Of course, in this embodiment of the present application, the terminal device and the network device may also clear all information of the HARQ process of the first PDSCH, which is not particularly limited in this embodiment of the present application.

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

Specifically, the terminal device may give up the first PDSCH according to a preset condition, and for the network device, the network device may determine, according to the same preset condition, that the first PDSCH is given up by the terminal device when it is determined that the preset condition is satisfied, so that it may be ensured that the terminal device and the network device understand consistently.

After the PDSCH is scheduled, the terminal device may send feedback information for the scheduled PDSCH, where the feedback information may be Acknowledgement (ACK) information or Negative-Acknowledgement (NACK) (a/N), and the feedback information of multiple terminal devices may be multiplexed, that is, the feedback information of multiple terminal devices is concatenated to generate a feedback sequence, and the feedback sequence is sent through one Physical Channel (e.g., Physical Uplink Control Channel (PUCCH)).

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

That is, the number of bits of the feedback sequence carried in one PUCCH can be determined in a semi-static manner regardless of an 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 fig. 4, the time window may be slot n to slot n +7, the feedback sequence may include 8 bits (at this time, it is assumed that the number of TBs of one PDSCH is 1, and the feedback information is feedback information based on the TBs), for a slot where the PDSCH is not transmitted, placeholder information (e.g., NACK information) may be set in the feedback sequence, and the feedback sequence may be { NACK, b1, NACK, b2, b3, b4, NACK }, where bi represents a decoding result of PDSCHi.

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

The generation of the feedback sequence is described above, and how to process the feedback information of the discarded first PDSCH is described below.

In one implementation, the terminal device does not transmit feedback information for the first PDSCH when the feedback information for the first PDSCH is not multiplexed with feedback information for other PDSCHs. Accordingly, for a network device, the network device does not detect feedback information for the first PDSCH when the feedback information for the first PDSCH is not multiplexed with feedback information for other PDSCHs.

Specifically, when the terminal device gives up the first PDSCH based on the preset condition and the network device knows that the first PDSCH is given up based on the same preset condition, at this time, the network device may not need to acquire the feedback information of the first PDSCH, and 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 may not detect the first PDSCH, so that the processing burden of the terminal device and the network device may be reduced, and the waste of resources may be avoided. The feedback resource of the first PDSCH (i.e., the resource carrying the feedback information of the first PDSCH) may be used for other purposes, for example, the feedback resource may be rescheduled by the network device, or the terminal device and the network device may agree in advance that the feedback resource of the first PDSCH needs to transmit information under the above circumstances.

Optionally, in this embodiment of the present application, when a plurality of PDSCHs that need to multiplex transmission of feedback information are all discarded PDSCHs, the terminal device does not send the feedback information of the plurality of PDSCHs, where the plurality of PDSCHs include the first PDSCH. Accordingly, for a network device, when a plurality of PDSCHs that need to multiplex transmission of feedback information are all discarded PDSCHs, the network device does not detect the feedback information of the plurality of PDSCHs, including the first PDSCH.

Specifically, if multiple PDSCHs that need to multiplex transmission of feedback information are abandoned, when the processing rule for abandoning PDSCHs determines, the network device may know which PDSCHs are abandoned, and at this time, the terminal device may not need to feed back a feedback sequence in which feedback information of multiple PDSCHs is concatenated to the network device, and the network device may not need to detect the feedback sequence, so that the processing burden of the terminal device and the network device may be reduced, and the waste of resources may be avoided. The feedback resource originally used for carrying the feedback sequence may be used for other purposes, for example, it may be rescheduled by the network device, or the terminal device and the network device may agree in advance about information that the feedback resource needs to transmit in the above case.

For example, as shown in fig. 5, the terminal device receives DCI1, DCI2, and DCI3 scheduled by the network device, where the DCI1, DCI2, and DCI3 are used to schedule PDSCH1, PDSCH2, and PDSCH3, the PDSCH1, PDSCH2, and PDSCH3 occupy slot n +1, slot n +4, and slot n +5, the feedback information of the three PDSCHs needs to be multiplexed, and the three PDSCHs are all discarded, so that the transmission of the feedback information of the three PDSCHs may be discarded. If sent, and the feedback sequence is generated according to a semi-static codebook, then the feedback sequence may be { NACK, NACK, NACK, NACK, NACK, NACK, NACK }, which is meaningless to the network device.

Optionally, in this embodiment of the present application, when there is at least one PDSCH that is not dropped and includes a dropped PDSCH, the terminal device needs to send a feedback sequence, because there are non-dropped PDSCHs in addition to the dropped PDSCH, and the network device needs to know the reception conditions of these non-dropped PDSCHs. Two ways of generating the feedback sequence in this case will be described below.

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

That is, in the first feedback sequence, the unrelieved PDSCH corresponds to a bit position, and the relinquished PDSCH also corresponds to a bit position, and the relinquished PDSCH does not cancel its corresponding bit position in the feedback sequence due to being relinquished. Here, the discarded PDSCH, for example, the feedback information of the first PDSCH, may be occupancy information (e.g., NACK information, or may also be ACK information), and it may be understood that information carried by the first PDSCH in the bit position corresponding to the first feedback sequence is set as the occupancy information.

For example, as shown in fig. 6, the terminal device receives DCI1, DCI2, and DCI3 scheduled by the network device, where the DCI1, DCI2, and DCI3 are used to schedule PDSCH1, PDSCH2, and PDSCH3, the PDSCH1, PDSCH2, and PDSCH3 occupy slot n +1, slot n +4, and slot n +5, feedback information of the three PDSCHs needs to be multiplexed, and PDSCH1 and PDSCH2 are abandoned, if the feedback sequence is generated according to a semi-static codebook, the feedback sequence may be { NACK, b3, NACK }, and if the feedback sequence is generated according to a dynamic codebook, the feedback sequence may be { 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 of the plurality of PDSCHs that is not relinquished.

Specifically, the multiple PDSCHs that need to multiplex the transmission feedback information are respectively scheduled by the multiple DCIs, the PUCCH resource of the feedback information that needs to multiplex the transmission may be indicated by the last DCI in the multiple DCIs, and if the PDSCH scheduled by the last DCI is abandoned, the feedback information that needs to multiplex the transmission may be transmitted by using the PUCCH resource indicated by another DCI, where the another DCI may be the last such DCI in the multiple DCIs: the DCI scheduled PDSCH is not discarded. At this time, the resource indicated by the last DCI corresponding to the discarded PDSCH may be used for other purposes, for example, the resource may be rescheduled by the network device, or the terminal device and the network device may agree in advance that the feedback resource of the first PDSCH needs to transmit information when the foregoing occurs.

Or, in this embodiment of the present application, the PUCCH resource information field in the DCI corresponding to the discarded PDSCH may still be valid, that is, the feedback resource indicated by the DCI corresponding to the discarded PDSCH may still be used to transmit the feedback sequence, and the resource position occupied by the required feedback sequence is not affected because the PDSCH is discarded. For example, when the DCI corresponding to the discarded PDSCH is the last DCI among the DCIs corresponding to the multiple PDSCHs for which feedback information needs to be multiplexed and transmitted, the first feedback sequence is transmitted using the feedback resource indicated by the DCI corresponding to the discarded PDSCH.

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

That is, in the second feedback sequence, the unrelieved PDSCH corresponds to a bit position, the relinquished PDSCH does not correspond to a bit position, and the relinquished PDSCH cancels its corresponding bit position in the feedback sequence due to being relinquished.

For example, as shown in fig. 6, the terminal device receives DCI1, DCI2, and DCI3 scheduled by the network device, where the DCI1, DCI2, and DCI3 are used to schedule PDSCH1, PDSCH2, and PDSCH3, the PDSCH1, PDSCH2, and PDSCH3 occupy slot n +1, slot n +4, and slot n +5, feedback information of the three PDSCHs needs to be multiplexed, and PDSCH1 and PDSCH2 are abandoned, if the feedback sequence is generated according to a semi-static codebook, the feedback sequence may be { NACK, b3, NACK }, and if the feedback sequence is generated according to a dynamic codebook, the feedback sequence may be { b3 }.

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 of the plurality of PDSCHs that is not relinquished.

Specifically, the multiple PDSCHs that need to multiplex the transmission feedback information are respectively scheduled by the multiple DCIs, the PUCCH resource of the feedback information that needs to multiplex the transmission may be indicated by the last DCI in the multiple DCIs, and if the PDSCH scheduled by the last DCI is abandoned, the feedback information that needs to multiplex the transmission may be transmitted by using the PUCCH resource indicated by another DCI, where the another DCI may be the last such DCI in the multiple DCIs: the DCI scheduled PDSCH is not discarded. At this time, the resource indicated by the last DCI corresponding to the abandoned PDSCH may be used for other purposes, for example, the resource may be rescheduled by the network device, or the terminal device and the network device may agree in advance that the feedback resource of the first PDSCH needs to transmit information when the above situation occurs.

Or, in this embodiment of the present application, the PUCCH resource information field in the DCI corresponding to the discarded PDSCH may still be valid, that is, the feedback resource indicated by the DCI corresponding to the discarded PDSCH may still be used to transmit the feedback sequence, and the resource position occupied by the required feedback sequence is not affected because the PDSCH is discarded. For example, when the DCI corresponding to the discarded PDSCH is the last DCI among the DCIs corresponding to the multiple PDSCHs for which feedback information needs to be multiplexed and transmitted, the second feedback sequence is transmitted using the feedback resource indicated by the DCI corresponding to the discarded PDSCH.

Optionally, in this embodiment, the count information in the DAI information domain of the scheduling signaling of the sixth PDSCH is not accumulated for counting the transmission of the first PDSCH, where the sixth PDSCH is a PDSCH subsequent to the first PDSCH in the multiple PDSCHs.

Specifically, the DCI signaling may have a DAI information field, where the DAI information field may count the transmitted PDSCHs (including the DCI-scheduled PDSCHs), and the count may be used for the terminal device to determine bit positions of feedback information of the DCI-scheduled PDSCHs in a feedback sequence and to determine a total number of bits of the feedback sequence, and when a certain PDSCH is abandoned, one scheduling of the PDSCH may not be accumulated in DCI corresponding to the PDSCH after the PDSCH.

For example, PDSCH1 is dropped, the count value of the DAI information field in the scheduling signaling for PDSCH1 is 5, and the count value of the DAI information field in the DCI corresponding to the next PDSCH2 of PDSCH1 may still be 5. The network device may instruct the terminal device to send the feedback sequence when the DAI information field is 7, and then the terminal device may concatenate the feedback information of the PDSCH with the value of 1 to 7 in the DAI information field to generate the feedback sequence, where the feedback sequence does not have the bit position corresponding to the PDSCH 1.

Alternatively, 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 may instruct the terminal device to send the feedback sequence when the DAI information field is 8, and then the terminal device may concatenate the feedback information of the PDSCH with the value of 1 to 8 in the DAI information field to generate the feedback sequence, where the feedback sequence has a bit position corresponding to the PDSCH 1.

Optionally, in this embodiment of the present application, the network device sends a third PDSCH, where the third PDSCH is used to retransmit a transport block TB in the first PDSCH; the terminal equipment receives a third PDSCH, wherein the third PDSCH is used for retransmitting a Transport Block (TB) in the first PDSCH;

wherein a time domain location of the third PDSCH precedes a time domain location of feedback resources of the first PDSCH; and/or the presence of a gas in the gas,

the time domain location of the third PDSCH is subsequent to the time domain location of the second PDSCH mentioned above.

Specifically, after the terminal device abandons the first PDSCH, the network device may retransmit the TB included in the first PDSCH through the third PDSCH, and the terminal device may acquire the retransmitted TB through the third PDSCH. And to avoid the first PDSCH being dropped again by the transmission of the second PDSCH, the third PDSCH may be made subsequent to the second PDSCH.

Wherein the time domain location of the third PDSCH before the time domain location of the feedback resources of the first PDSCH may comprise any one of:

the time domain starting position of the third PDSCH is before the time domain starting position of the feedback resource of the first PDSCH, at this time, the time domain ending position of the third PDSCH may be before or after the time domain ending position of the feedback resource of the first PDSCH, or the time domain ending position of the third PDSCH may be equal to the time domain starting 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 feedback resource of the first 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 feedback resource of the first PDSCH, 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 starting position of the third PDSCH is before the time domain starting position of the feedback resource of the first PDSCH, and the time domain ending position of the third PDSCH is before the time domain ending position of the feedback resource of the first PDSCH;

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 a certain time delay may further exist between the time domain end position and the time domain start position.

And the time domain location of the third PDSCH may include any of the following after the aforementioned time domain location of the second PDSCH:

the time domain starting position of the third PDSCH is after the time domain starting position of the second PDSCH, at this time, the time domain ending position of the third PDSCH may be before or after the time domain ending position of the second PDSCH, and the time domain ending position of the third PDSCH may be equal to the time domain ending 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, and the time domain start position of the third PDSCH may be equal to the time domain start position of the second PDSCH;

the time domain starting position of the third PDSCH is behind the time domain starting position of the second PDSCH, and the time domain ending position of the third PDSCH is behind the time domain ending position of the second PDSCH;

the time domain starting position of the third PDSCH is after the time domain ending position of the second PDSCH.

Optionally, in this embodiment of the present application, the network device sends a fourth PDSCH, where the fourth PDSCH is a first PDSCH after the first PDSCH and has the same first HARQ process number as the first PDSCH; and the network equipment flips a New Data Indication (NDI) corresponding to the fourth PDSCH according to the NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is the last PDSCH before the first PDSCH and has the first process number.

Correspondingly, for a terminal device, the terminal device receives a fourth PDSCH, wherein the fourth PDSCH is a PDSCH which is the first PDSCH after the first PDSCH and has the same first HARQ process number as the first PDSCH; the terminal device determines whether a New Data Indication (NDI) corresponding to the fourth PDSCH is inverted relative to an NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is a last PDSCH before the first PDSCH and has the first process number.

This approach may be applicable to the case of clearing the HARQ process corresponding to the first PDSCH. As described above, the terminal device and the network device clear all information corresponding to the first PDSCH, which is beneficial to reducing implementation complexity.

For example, as shown in fig. 7, PDSCH2 of HARQ process X is abandoned, and the NDI of the TB in PDSCH2 is equal to 1, and PDSCH1 is scheduled before PDSCH2, the HARQ process of PDSCH1 is also X, and the corresponding NDI is equal to 0, after the terminal device abandons PDSCH2, the network device schedules PDSCH3, the TB in PDSCH3 is new TB both to PDSCH1 and PDSCH2 (which may be due to the reason that the HARQ process of PDSCH2 is cleared, so that PDSCH3 appears to transmit new TB), the NDI of the TB in PDSCH3 may be determined with reference to the NDI of pdschii, and then the NDI corresponding to the TB in PDSCH3 may be equal to 1.

Or, in this embodiment, 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 fig. 8, PDSCH2 of HARQ process X is abandoned, and the NDI of the TB in PDSCH2 is equal to 1, and PDSCH1 is scheduled before PDSCH2, the HARQ process of PDSCH1 is also X, and the corresponding NDI is equal to 0, after the terminal device abandons PDSCH2, the network device schedules PDSCH3, the TB in PDSCH3 is new TB both to PDSCH1 and PDSCH2 (may be due to the reason that the HARQ process of PDSCH2 is cleared, so that PDSCH3 appears to transmit new TB), the NDI of the TB in PDSCH3 may be determined with reference to the NDI of PDSCH2, and at this time, the NDI corresponding to the TB in PDSCH3 may be equal to 0.

It should be understood that the sequence numbers of the steps in the method 200 do not represent the execution sequence, and the specific execution sequence may be determined according to the actual situation, for example, 240 may be executed before 230.

Therefore, in the embodiment of the present application, the terminal device receives the indication information sent by the network device, where the indication information indicates the resource of the first PDSCH, and when the predetermined condition is satisfied, the terminal device may give up the first PDSCH, so that the terminal device may flexibly process the PDSCH.

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; wherein the content of the first and second substances,

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

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

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

the terminal equipment receives a second PDSCH;

wherein a time domain position of the second PDSCH is subsequent to a time domain position of the first PDSCH and a time domain position of feedback resources of the second PDSCH is prior to a time domain position of feedback resources of the first PDSCH, or,

the time domain location of the second PDSCH may at least partially overlap the time domain location of the first PDSCH.

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

the second PDSCH has a higher priority than the first PDSCH.

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

receiving a third PDSCH, wherein the third PDSCH is used for retransmitting a Transport Block (TB) in the first PDSCH;

the time domain location of the third PDSCH is subsequent to the time domain location of 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, or the time domain resource of the second PDSCH and the time domain position of the first PDSCH have at least partial overlap.

receiving a fourth PDSCH, wherein the fourth PDSCH is a first PDSCH which is subsequent to the first PDSCH and has the same first HARQ process number as the first PDSCH;

the terminal device determines whether a New Data Indication (NDI) corresponding to the fourth PDSCH is inverted relative to an NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is a last PDSCH before the first PDSCH and has the first process number.

Optionally, in this 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

Ceasing to demodulate the first PDSCH; or

Stopping decoding the first PDSCH; or

Not storing data of the first PDSCH in a buffer;

not calculating the transmission times for the TBs in the first PDSCH.

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 with the feedback information of other PDSCHs, the communication unit 320 is notified not to transmit the feedback information for the first PDSCH.

when all of the PDSCHs that need to multiplex transmission of feedback information are discarded PDSCHs, the communication unit 320 is notified not to transmit the feedback information of the PDSCHs, where the PDSCHs include the first PDSCH.

when there is at least one PDSCH that is not abandoned in the multiple PDSCHs that need to multiplex the transmission feedback information, notifying the communication unit 320 to transmit a first feedback sequence, where the first feedback sequence includes the feedback information of the multiple PDSCHs, and 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 present 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 of the plurality of PDSCHs that is not relinquished.

when there is at least one PDSCH that is not discarded in the multiple PDSCHs that need to multiplex transmission of feedback information, the communication unit 320 is notified to transmit a second feedback sequence that includes the feedback information of the at least one PDSCH and does not include the feedback information of the discarded PDSCH, which 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 of the plurality of PDSCHs that is not relinquished.

It should be understood that the terminal device 300 may be configured to implement the corresponding operations implemented by the terminal device in the foregoing method embodiments, and for simplicity, the description is not 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 comprises a communication unit 410 and a processing unit 420.

The communication unit 410 is configured to: sending indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH);

the processing unit 420 is configured to: and when a preset condition is met, determining that the first PDSCH is abandoned by the terminal equipment.

the network device has transmitted a second PDSCH;

the second PDSCH has a higher priority than the first PDSCH.

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

transmitting a third PDSCH, wherein the third PDSCH is used for retransmitting a Transport Block (TB) in the first PDSCH;

a time domain position of the third PDSCH is subsequent to a time domain position of the second PDSCH, wherein,

transmitting a fourth PDSCH, wherein the fourth PDSCH is a PDSCH which is the first PDSCH after the first PDSCH and has the same first HARQ process number as the first PDSCH;

the processing unit 420 is further configured to: and according to the NDI corresponding to a fifth PDSCH, reversing the NDI indicated by the new data corresponding to the fourth PDSCH, wherein the fifth PDSCH is the last PDSCH before the first PDSCH and has the first process number.

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

not calculating the transmission times for the TBs in the first PDSCH.

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 with the feedback information of other PDSCHs, the communication section 420 is notified not to detect the feedback information for the first PDSCH.

when all of the PDSCHs requiring the multiplexing of the transmission feedback information are discarded PDSCHs, the communication unit 420 is notified not to detect the feedback information of the PDSCHs, where the PDSCHs include the first PDSCH.

when there is at least one PDSCH that is not abandoned in the multiple PDSCHs that need to multiplex transmission feedback information, notifying the communication unit 420 to receive a first feedback sequence, where the first feedback sequence includes feedback information of the multiple PDSCHs, and the multiple PDSCHs include the first PDSCH.

when there is at least one PDSCH that is not discarded in the multiple PDSCHs that need to multiplex transmission feedback information, notifying the communication unit 420 to receive a second feedback sequence, where the second feedback sequence includes feedback information of the at least one PDSCH and does not include feedback information of a discarded PDSCH, and the discarded PDSCH includes the first PDSCH.

It should be understood that the network device 400 may be configured to implement the corresponding operations implemented by the network device in the foregoing method embodiments, and for simplicity, the description is not repeated here.

Fig. 11 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application. The communication device 500 shown in fig. 11 comprises a processor 510, and the processor 510 may 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. From the memory 520, the processor 510 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into 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, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 530 may include a transmitter and a receiver, among others. The transceiver 530 may further include one or more antennas.

Optionally, the communication device 500 may specifically be a network device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 500 may specifically be a mobile terminal/terminal device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 12 is a schematic configuration diagram of a communication apparatus 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. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

Optionally, the communication device 600 may further comprise an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, communications device 600 may also include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the communication apparatus may be applied to the network device in the embodiment of the present application, and the communication apparatus may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, no further description is given here.

Optionally, the communication apparatus 600 may be applied to the mobile terminal/terminal device in this embodiment, and the communication apparatus 600 may implement the corresponding process implemented by the mobile terminal/terminal device in each method in this embodiment, which is not described herein again for brevity.

It should be understood that the communication device 600 mentioned in the embodiments of the present application may be a chip, which may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DRRAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may 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 in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising 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 enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

the method comprises the steps that terminal equipment receives indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH);

when a preset condition is satisfied, the terminal device abandons the first PDSCH,

wherein the preset conditions include:

the terminal equipment receives a second PDSCH;

a time domain position of the second PDSCH at least partially overlaps a time domain position of the first PDSCH,

wherein the method further comprises:

the terminal equipment receives a third PDSCH, wherein the third PDSCH is used for retransmitting a Transport Block (TB) in the first PDSCH;

wherein a time domain position of the third PDSCH precedes a time domain position of feedback resources of the first PDSCH, and

the time domain location of the third PDSCH is subsequent to the time domain location of the second PDSCH,

wherein the method further comprises:

and the terminal equipment does not calculate the transmission times aiming at the transmission block TB in the first PDSCH.

2. The method of claim 1, wherein the preset condition further comprises:

the second PDSCH has a higher priority than the first PDSCH.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

the terminal equipment receives a fourth PDSCH, wherein the fourth PDSCH is a PDSCH which is the first PDSCH after the first PDSCH and has the same first HARQ process number as the first PDSCH;

the terminal device determines whether a New Data Indication (NDI) corresponding to the fourth PDSCH is inverted relative to an NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is the last PDSCH before the first PDSCH and has the first HARQ process number.

4. The method of claim 1 or 2, wherein the terminal device relinquishes the first PDSCH, comprising:

ceasing to receive the first PDSCH; or

Ceasing to demodulate the first PDSCH; or

Stopping decoding the first PDSCH; or

Data of the first PDSCH is not stored in a buffer.

5. The method according to claim 1 or 2, characterized in that the method further comprises:

and when the feedback information of the first PDSCH is not multiplexed with the feedback information of other PDSCHs for transmission, the terminal equipment does not send the feedback information aiming at the first PDSCH.

6. The method of claim 1, further comprising:

when a plurality of PDSCHs needing to be multiplexed with transmission feedback information are abandoned PDSCHs, the terminal equipment does not send the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

7. The method of claim 1, further comprising:

when at least one PDSCH which needs to be multiplexed to transmit feedback information is not abandoned, the terminal equipment transmits a first feedback sequence, wherein the first feedback sequence comprises the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

8. The method of claim 7, wherein the feedback information for the first PDSCH is placeholder information.

9. The method of claim 7, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein the first PUCCH resource is indicated by scheduling signaling of a PDSCH of the plurality of PDSCHs that is not relinquished.

10. The method of claim 1, further comprising:

when at least one PDSCH which needs to be multiplexed to transmit feedback information is not abandoned, the terminal equipment transmits a second feedback sequence, wherein the second feedback sequence comprises the feedback information of the at least one PDSCH and does not comprise the feedback information of the abandoned PDSCH, and the abandoned PDSCH comprises the first PDSCH.

11. The method of claim 10, 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 of the plurality of PDSCHs that is not relinquished.

12. The method of any of claims 6 to 11, wherein the count information in the DAI information domain of scheduling signaling for a sixth PDSCH is an accumulation that does not count transmissions of the first PDSCH, wherein the sixth PDSCH is a PDSCH subsequent to the first PDSCH of the plurality of PDSCHs.

13. A method of communication, comprising:

the network equipment sends indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH);

when a preset condition is satisfied, the network device determines that the first PDSCH is abandoned by the terminal device,

wherein the preset conditions include:

the network device has transmitted a second PDSCH;

wherein the method further comprises:

the network equipment transmits a third PDSCH, wherein the third PDSCH is used for retransmitting a Transport Block (TB) in the first PDSCH;

wherein a time domain position of the third PDSCH is before a time domain position of feedback resources of the first PDSCH and a time domain position of the third PDSCH is after a time domain position of the second PDSCH,

wherein the method further comprises:

the network device does not perform the calculation of the transmission times for the TB in the first PDSCH.

14. The method of claim 13, wherein the preset condition further comprises:

the second PDSCH has a higher priority than the first PDSCH.

15. The method according to claim 13 or 14, characterized in that the method further comprises:

the network equipment sends a fourth PDSCH, wherein the fourth PDSCH is a PDSCH which is the first PDSCH after the first PDSCH and has the same first HARQ process number as the first PDSCH;

and the network equipment overturns a New Data Indication (NDI) corresponding to the fourth PDSCH according to the NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is the last PDSCH before the first PDSCH and has the first HARQ process number.

16. The method according to claim 13 or 14, characterized in that the method further comprises:

the network device does not detect feedback information for the first PDSCH when the feedback information for the first PDSCH is not multiplexed with feedback information for other PDSCHs.

17. The method of claim 13, further comprising:

when a plurality of PDSCHs needing to be multiplexed with transmission feedback information are abandoned PDSCHs, the network equipment does not detect the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

18. The method of claim 13, further comprising:

when at least one PDSCH which needs to multiplex transmission of feedback information exists in the plurality of PDSCHs and is not abandoned, the network equipment receives a first feedback sequence, wherein the first feedback sequence comprises the feedback information of the plurality of PDSCHs, and the plurality of PDSCHs comprise the first PDSCH.

19. The method of claim 18, wherein the feedback information for the first PDSCH is placeholder information.

20. The method of claim 18, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein the first PUCCH resource is indicated by scheduling signaling of a PDSCH of the plurality of PDSCHs that is not relinquished.

21. The method of claim 13, further comprising:

when there is at least one PDSCH which needs to multiplex transmission of feedback information and is not abandoned, the network equipment receives a second feedback sequence, wherein the second feedback sequence comprises the feedback information of the at least one PDSCH and does not comprise the feedback information of the abandoned PDSCH, and the abandoned PDSCH comprises the first PDSCH.

22. The method of claim 21, 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 of the plurality of PDSCHs that is not relinquished.

23. The method of any of claims 17 to 22, wherein the count information in the DAI information domain of scheduling signaling for a sixth PDSCH that is a PDSCH subsequent to the first PDSCH of the plurality of PDSCHs does not accumulate to count transmissions of the first PDSCH.

24. A terminal device, characterized by comprising a communication unit and a processing unit; wherein the content of the first and second substances,

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

a processing unit configured to discard the first PDSCH when a preset condition is satisfied,

wherein the preset conditions include:

the terminal equipment receives a second PDSCH;

wherein the communication unit is further configured to:

wherein the processing unit is further to:

not calculating the transmission times for the TBs in the first PDSCH.

25. The terminal device according to claim 24, wherein the preset condition further comprises:

the second PDSCH has a higher priority than the first PDSCH.

26. The terminal device according to claim 24 or 25, wherein the communication unit is further configured to:

the processing unit is further to: determining whether the New Data Indication (NDI) corresponding to the fourth PDSCH is inverted relative to an NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is a last PDSCH before the first PDSCH and has the first HARQ process number.

27. The terminal device of claim 24 or 25, wherein the relinquishing the first PDSCH comprises:

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

Ceasing to demodulate the first PDSCH; or

Stopping decoding the first PDSCH; or

Data of the first PDSCH is not stored in a buffer.

28. The terminal device of claim 24 or 25, wherein the processing unit is further configured to:

and when the feedback information of the first PDSCH is not multiplexed with the feedback information of other PDSCHs, notifying the communication unit not to transmit the feedback information of the first PDSCH.

29. The terminal device of claim 24, wherein the processing unit is further configured to:

when a plurality of PDSCHs needing to be multiplexed with transmission feedback information are abandoned PDSCHs, the communication unit is informed not to transmit the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

30. The terminal device of claim 24, wherein the processing unit is further configured to:

when at least one PDSCH which needs to be multiplexed to transmit feedback information is not abandoned, informing the communication unit to transmit a first feedback sequence, wherein the first feedback sequence comprises the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

31. The terminal device of claim 30, wherein the feedback information for the first PDSCH is placeholder information.

32. The terminal device of claim 30, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein the first PUCCH resource is indicated by scheduling signaling of a PDSCH of the plurality of PDSCHs that is not relinquished.

33. The terminal device of claim 24, wherein the processing unit is further configured to:

when at least one PDSCH which needs to be multiplexed to transmit feedback information is not abandoned, the communication unit is informed to transmit a second feedback sequence, wherein the second feedback sequence comprises the feedback information of the at least one PDSCH and does not comprise the feedback information of the abandoned PDSCH, and the abandoned PDSCH comprises the first PDSCH.

34. The terminal device of claim 33, 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 of the plurality of PDSCHs that is not relinquished.

35. The terminal device of any of claims 29 to 34, wherein the count information in the DAI information field of scheduling signaling for a sixth PDSCH is an accumulation that does not count transmissions of the first PDSCH, wherein the sixth PDSCH is a PDSCH subsequent to the first PDSCH of the plurality of PDSCHs.

36. A network device comprising a communication unit and a processing unit; wherein the content of the first and second substances,

the communication unit is configured to: sending indication information, wherein the indication information is used for indicating resources occupied by a first Physical Downlink Shared Channel (PDSCH);

the processing unit is configured to: determining that the first PDSCH is discarded by a terminal device when a preset condition is satisfied,

wherein the preset conditions include:

the network device has transmitted a second PDSCH;

wherein the communication unit is further configured to:

wherein the processing unit is further to:

not calculating the transmission times for the TBs in the first PDSCH.

37. The network device of claim 36, wherein the preset condition further comprises:

the second PDSCH has a higher priority than the first PDSCH.

38. The network device of claim 36 or 37, wherein the communication unit is further configured to:

the processing unit is further to: and flipping a New Data Indication (NDI) corresponding to the fourth PDSCH according to the NDI corresponding to a fifth PDSCH, wherein the fifth PDSCH is the last PDSCH before the first PDSCH and has the first HARQ process number.

39. The network device of claim 36 or 37, wherein the processing unit is further configured to:

notifying the communication unit not to detect feedback information for the first PDSCH when the feedback information for the first PDSCH is not multiplexed with feedback information for other PDSCHs.

40. The network device of claim 36, wherein the processing unit is further configured to:

when a plurality of PDSCHs needing to be multiplexed with transmission feedback information are abandoned PDSCHs, the communication unit is informed not to detect the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

41. The network device of claim 36, wherein the processing unit is further configured to:

when at least one PDSCH which needs to be multiplexed to transmit feedback information is not abandoned, the communication unit is informed to receive a first feedback sequence, wherein the first feedback sequence comprises the feedback information of the PDSCHs, and the PDSCHs comprise the first PDSCH.

42. The network device of claim 41, wherein the feedback information for the first PDSCH is placeholder information.

43. The network device of claim 41, wherein the first feedback sequence is transmitted on a first PUCCH resource; wherein the first PUCCH resource is indicated by scheduling signaling of a PDSCH of the plurality of PDSCHs that is not relinquished.

44. The network device of claim 36, wherein the processing unit is further configured to:

when at least one PDSCH which needs to be multiplexed with transmission feedback information is not abandoned, the communication unit is informed to receive a second feedback sequence, wherein the second feedback sequence comprises the feedback information of the at least one PDSCH and does not comprise the feedback information of the abandoned PDSCH, and the abandoned PDSCH comprises the first PDSCH.

45. The network device of claim 44, 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 of the plurality of PDSCHs that is not relinquished.

46. The network device of any of claims 40 to 45, wherein the count information in the DAI information field of scheduling signaling for a sixth PDSCH is an accumulation that does not count transmissions of the first PDSCH, wherein the sixth PDSCH is a PDSCH of the plurality of PDSCHs that follows the first PDSCH.

47. A terminal device, comprising: a processor, wherein the processor is configured to invoke and run a computer program from a memory, such that the terminal device performs the method of any of claims 1 to 12.

48. A network device, comprising: a processor, wherein the processor is configured to invoke and run a computer program from a memory, causing the network device to perform the method of any of claims 13 to 23.

49. A communications apparatus, comprising: a processor for invoking and running a computer program from a memory, causing a device in which the communication apparatus is installed to perform the method of any of claims 1-23.

50. A computer-readable storage medium for storing a computer program which, when run on a terminal device, causes the terminal device to perform the method of any one of claims 1 to 12; or cause a network device to perform the method of any of claims 13 to 23 when the computer program is run on the network device.