CN111756479B

CN111756479B - Communication method and device

Info

Publication number: CN111756479B
Application number: CN201910239537.6A
Authority: CN
Inventors: 王俊伟; 余政; 张兴炜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2021-12-10
Anticipated expiration: 2039-03-27
Also published as: CN111756479A; WO2020192772A1

Abstract

A communication method and device, the method includes: the terminal device may use different processing modes for the data information sent by the network device, for example, the data information may be discarded, buffered, or demodulated and decoded normally. And the terminal device reports the processing mode of the terminal device to the network device, so that the network device can process the data information differently according to different conditions. For example, for the discarding condition, the network device may adopt retransmission, and for the buffering condition, the network device may not retransmit any more, and may directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the processing mode that the terminal equipment feeds back NACK and the network equipment always retransmits, the method can save network overhead.

Description

Communication method and device

Technical Field

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

Background

In cellular-based data communication, in order to efficiently perform data retransmission, a hybrid automatic repeat request (HARQ) mechanism is introduced. The whole data transmission process can be as follows: and the network equipment sends data information to the terminal equipment. And after receiving the data information, the terminal equipment demodulates and decodes the data information, and feeds back an Acknowledgement (ACK) to the network equipment if the data information is correctly demodulated and decoded. Feeding back a Negative Acknowledgement (NACK) to a network device if the data information is demodulated and/or decoded in error. Accordingly, the network device may end the transmission of the data information after receiving the ACK. After receiving the NACK, the network device may retransmit the data information, which results in a relatively high network overhead.

Disclosure of Invention

The application provides a communication method and device to reduce network overhead.

In a first aspect, a communication method is provided, including: the terminal equipment receives first data information; the terminal equipment processes the first data information to obtain the processing state of the first data information; the terminal equipment sends feedback information, the feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information.

As can be seen from the above, the terminal device may adopt different processing modes for the data information sent by the network device according to its own processing capability, for example, the data information may be discarded, buffered, or demodulated and decoded normally. And the terminal device reports the processing mode of the terminal device to the network device, so that the network device can process the data information differently according to different conditions. For example, for the discarding condition, the network device may adopt retransmission, and for the buffering condition, the network device may not retransmit any more, and may directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the processing mode that the terminal equipment feeds back NACK and the network equipment always retransmits, the method can save network overhead.

In one possible design, the processing state of the first data information includes: the first data information is demodulated and decoded or the first data information is not demodulated and/or decoded.

In one possible design, the first data information is not completely demodulated and/or decoded, including: the first data information is discarded; alternatively, the first data information is cached.

In one possible design, the first identifier and/or the second identifier is used to determine a processing state of the first data information, and includes: if the first identifier is a first value and the second identifier is a third value, determining that the processing state of the first data information is that the first data information is cached; or, if the first identifier is a first value and the second identifier is a fourth value, determining that the processing state of the first data information is that the first data information is discarded; or, if the first identifier is a first value or a second value, and the second identifier is a fifth value, it is determined that the processing state of the first data information is that the demodulation and decoding of the first data information are completed.

From the above, the processing state of the first data information can be determined according to the first identifier and/or the second identifier. Further, the network device may adopt different processing modes according to the processing state of the first data information. Compared with the processing mode of feeding back NACK and always retransmitting, the method can save network overhead.

In one possible design, the first identifier and/or the second identifier may also be used to determine an acknowledgement, ACK, or a negative acknowledgement, NACK.

As can be seen from the above, in the embodiment of the present application, the first identifier and/or the second identifier are used to determine NACK or ACK in addition to the processing state of the first data information. No additional indication is needed for NACK or ACK, further reducing network overhead.

In one possible design, the first and/or second identities are further used to determine a positive acknowledgement, ACK, or a negative acknowledgement, NACK, including: if the first identifier is a second value, the first identifier is determined to be ACK; or, if the first identifier is a first value and the second identifier is a fifth value, the NACK is determined.

In one possible design, the first identifier and/or the second identifier is used to determine a processing state of the first data information, and includes: if the second identifier is a sixth value and the first identifier is an eighth value, determining that the processing state of the first data information is that the first data information is discarded; or, if the second identifier is a sixth value and the first identifier is a ninth value, it is determined that the processing state of the first data information is that the first data information is cached.

In one possible design, the first and/or second identities are further used to determine a positive acknowledgement, ACK, or a negative acknowledgement, NACK, including: if the second identifier is a seventh value and the first identifier is an eighth value, determining NACK; or, if the second identifier is a seventh value and the first identifier is a ninth value, determining ACK.

In a possible design, the second identifier is carried in feedback response information of the first data information, or the second identifier is carried in feedback response information of the second data information, where the second data information is different from the first data information.

As can be seen from the above, the second identifier is placed in the feedback response message of the second data message, so that the influence caused by missing detection of the PDCCH of the first data message can be reduced. Since the second identifier can be used to determine the processing status of the first data information, the first feedback has no effect even if the terminal device misses the PDCCH of the first data information. Therefore, the second identifier can be carried in the feedback response information of different data information, and compared with the feedback response information fixedly carried in the first data information, the second identifier is high in flexibility and easy to implement.

In one possible design, the method further includes: the terminal equipment receives retransmitted first data information, and the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or, the terminal equipment receives first indication information; and the terminal equipment demodulates and/or decodes the cached first data information according to the first indication information, and feeds back ACK or NACK according to the demodulation and/or decoding result. In a second aspect, a communication method is provided, including: the network equipment sends first data information; the network equipment receives feedback information, wherein the feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information. In one possible design, the processing state of the first data information includes: the first data information is demodulated and decoded or the first data information is not demodulated and/or decoded.

In one possible design, the method further includes: the network equipment sends retransmitted first data information, and the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or, the network device sends first indication information, where the first indication information is used to indicate the terminal device to demodulate and/or decode the cached first data information, and feeds back ACK or NACK according to a demodulation and/or decoding result.

As can be seen from the above, the network device may perform different processing on the data information according to different processing states of the first data information. For example, for the discarding condition, the network device may adopt retransmission, and for the buffering condition, the network device may not retransmit any more, and may directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the processing mode that the terminal equipment feeds back NACK and the network equipment always retransmits, the method can save network overhead.

In a third aspect, a communication method is provided, including: the terminal equipment receives first data information; the terminal equipment processes the first data information; the terminal equipment sends feedback information, wherein the feedback information comprises a first identifier, and the first identifier is used for determining Acknowledgement (ACK), Negative Acknowledgement (NACK) or the processing state of the first data information.

As can be seen from the above, in the embodiment of the present application, the feedback information may include the first identifier, and the first identifier may be used to determine the processing state of the ACK, the NACK, or the first data information, and is good in compatibility with the existing scheme and easy to implement.

In one possible design, the processing state of the first data information includes the first data information being discarded or the first data information being cached.

In one possible design, the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing status of the first data information, and includes: if the first identifier is a first value, determining ACK; or, if the first identifier is a second value, determining NACK; or, if the first identifier is a third value, determining that the first data information is discarded; or, if the first identifier is a fourth value, it is determined that the first data information is cached.

In a possible design, when the first identifier is used to determine the processing state of the first data information, the first identifier is carried in the feedback response information of the first data information, or the first identifier is carried in the feedback response information of second data information, where the second data information is different from the first data information.

In one possible design, the method further includes: the terminal equipment receives retransmitted first data information, and the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or, the terminal device receives the first indication information, demodulates and/or decodes the buffered first data information according to the first indication information, and feeds back ACK or NACK according to a demodulation and/or decoding result.

In a fourth aspect, a communication method is provided, including: the network equipment sends first data information; the network equipment receives feedback information, wherein the feedback information comprises a first identifier, and the first identifier is used for determining Acknowledgement (ACK), Negative Acknowledgement (NACK), or the processing state of the first data information.

In a fifth aspect, a communication device is provided, which includes a transceiver module and a processing module;

the receiving and sending module is used for receiving first data information; the processing module is used for processing the first data information received by the transceiver module to obtain the processing state of the first data information; the transceiver module is further configured to send feedback information, where the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine a processing state of the first data information.

For the specific implementation of the transceiver module and the processing module, reference may be made to the above first aspect and any description of possible designs, which are not described herein.

In a sixth aspect, a communications apparatus is provided that includes a processor and a memory;

wherein, the memory is used for storing instructions; the processor is used for controlling the receiver to receive the first data information, processing the first data information to obtain the processing state of the first data information, and controlling the transmitter to feed back information, wherein the feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information.

For a specific implementation of the processor, the transmitter and the receiver, reference is made to the above first aspect and any description of possible designs, which are not further described herein.

In a seventh aspect, a communication device is provided, which includes a transceiver module; optionally, a processing module may also be included.

The transceiver module is used for transmitting the first data information and receiving the feedback information. The feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information. Optionally, the processing module is configured to determine the first data information.

For a specific implementation of the processing module and the transceiver module, reference may be made to the above second aspect and any description of possible designs, which will not be described herein.

In an eighth aspect, a communications apparatus is provided that includes a processor and a memory;

wherein, the memory is used for storing instructions; and a processor for controlling the transmitter to transmit the first data information and controlling the receiver to receive the feedback information. The feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information.

For a specific implementation of the processor, the transmitter and the receiver, reference is made to the above second aspect and any description of possible designs, which are not further described herein.

In a ninth aspect, a communication device is provided, which includes a transceiver module and a processing module.

The receiving and sending module is used for receiving first data information; the processing module is used for processing the first data information received by the transceiver module; the transceiver module is further configured to send feedback information, where the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing state of the first data information.

For the specific implementation of the transceiver module and the processing module, reference may be made to the third aspect and any description of possible designs, which are not described herein.

In a tenth aspect, a communication apparatus is provided, comprising a processor and a memory;

wherein, the memory is used for storing instructions; the processor is configured to control the receiver to receive first data information, process the first data information, and control the transmitter to transmit feedback information, where the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing state of the first data information.

For a specific implementation of the processor, the transmitter and the receiver, reference may be made to the third aspect and any description of possible designs, which are not described herein.

In an eleventh aspect, there is provided a communication apparatus comprising: and a transceiver module. Optionally, a processing module may also be included.

The receiving and sending module is configured to send first data information and receive feedback information, where the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing state of the first data information. Optionally, the processing module may be configured to determine the first data information.

For the specific implementation of the transceiver module and the processing module, reference may be made to the fourth aspect and any description of possible designs, which will not be described herein.

In a twelfth aspect, a communications apparatus is provided that includes a processor and a memory;

wherein, the memory is used for storing instructions; and a processor for controlling the transmitter to transmit the first data information and controlling the receiver to receive the feedback information.

For a specific implementation of the processor and the transceiver, reference may be made to the fourth aspect and any description of possible designs, which will not be described herein.

In a thirteenth aspect, the present application further provides a computer-readable storage medium comprising: computer software instructions; when the computer software instructions are run in a communication device or a chip built in the communication device, the device is caused to execute the method provided by any one of the implementation modes of any one of the aspects.

In a fourteenth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the methods of any of the above aspects.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of HARQ transmission according to an embodiment of the present application;

fig. 3 is a diagram illustrating TB-based transmission and retransmission according to an embodiment of the present application;

fig. 4 is a schematic diagram of CBG-based transmission and retransmission according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of sequential transmission according to an embodiment of the present application;

FIGS. 6a and 6b are schematic diagrams of non-sequential transmissions provided by embodiments of the present application;

fig. 7 is a flowchart of a communication method according to an embodiment of the present application;

fig. 8 to fig. 12 are schematic diagrams of non-sequential retransmission provided in the embodiment of the present application;

fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The 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.

Fig. 1 illustrates a communication system 100 provided in an embodiment of the present application, where the communication system 100 includes a terminal device 101 and an access network device 102. Optionally, the communication system 100 may further include a core network device 103.

The terminal device 101 is wirelessly connected to the access network device 102, and the access network device 102 may be connected to the core network device 103 in a wired or wireless manner. Optionally, the core network device 103 and the access network device 102 may be separate physical devices, or the core network device 103 and the access network device 102 are the same physical device, and all/part of the functions of the core network device 103 and all/part of the logic functions of the access network device 102 are integrated on the physical device. The terminal device 101 may be fixed or mobile.

It should be understood that, in the embodiment of the present application, the components of the communication system 100 shown in fig. 1 are only for illustration and are not intended to limit the present application. For example, in an example, the communication system 100 can further include a wireless relay device or a wireless backhaul device, etc. In the communication system 100 shown in fig. 1, the number of core network devices, access network devices, and terminal devices is not limited. For example, communication system 100 may include a number of terminal devices other than 2, and so on.

In an example, the access network device 102 and the terminal device 101 may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted, etc.; the access network device 102 and the terminal device 101 may also be deployed on the water surface; the access network devices 102 and terminal devices 101 may also be deployed in airborne airplanes, balloons, satellites, and the like. The application scenarios of the access network device 102 and the terminal device 101 are not limited in the embodiment of the present application.

In one example, the communication system shown in fig. 1 may be applied to downlink signal transmission, may also be applied to uplink signal transmission, and may also be applied to device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is an access network device 102, and the corresponding receiving device is a terminal device 101. For uplink signal transmission, the sending device is the terminal device 101, and the corresponding receiving device is the access network device 102. For the signaling of D2D, the transmitting device is terminal device 101 and the corresponding receiving device is also terminal device 101. The embodiment of the present application does not limit the transmission direction of the signal.

In an example, communication between the access network device 102 and the terminal device 101 and communication between the terminal device 101 and the terminal device 101 may be performed through a licensed spectrum (licensed spectrum), may be performed through an unlicensed spectrum (unlicensed spectrum), or may be performed through both the licensed spectrum and the unlicensed spectrum. The access network device 102 and the terminal device 101 may communicate with each other through a 6G or less spectrum, may communicate through a 6G or more spectrum, and may communicate through both a 6G or less spectrum and a 6G or more spectrum. The embodiment of the present application does not limit the spectrum resources used between the access network device 102 and the terminal device 101.

For ease of understanding, an explanation of concepts related to the present application is given by way of example for reference, as shown below. It is to be understood that the above description of related concepts is merely exemplary and is not intended as a definition of the limits of the application.

1) A network device is an entity in a network side for transmitting or receiving signals, and the network device may be a device for communicating with a terminal device. For example, the network device may include access network device 102 and/or core network device 103 shown in fig. 1. Alternatively, the network device may include a generation Node B (gNodeB). Alternatively, the network device may be an AP in a Wireless Local Area Network (WLAN), a base station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, or eNodeB) in a Long Term Evolution (LTE), or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved Public Land Mobile Network (PLMN), or a network device in an NR system, and the like. In addition, in this embodiment of the present application, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell), and the small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services. Furthermore, the network device may be other means for providing wireless communication functionality for the terminal device, where possible. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. For convenience of description, in the embodiments of the present application, an apparatus for providing a wireless communication function for a terminal device is referred to as a network device.

2) The terminal device may be a wireless terminal device capable of receiving network device scheduling and indication information, and the wireless terminal device may be a device providing voice and/or data connectivity to a user, or a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones), computers, and data cards, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks or the internet via a radio access network (e.g., a RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), tablet computers (pads), and computers with wireless transceiving functions. A wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a Mobile Station (MS), a remote station (remote station), an Access Point (AP), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), a Subscriber Station (SS), a user terminal device (CPE), a terminal (terminal), a User Equipment (UE), a Mobile Terminal (MT), etc. The wireless terminal device may also be a wearable device and a next generation communication system, for example, a terminal device in a 5G network or a terminal device in a Public Land Mobile Network (PLMN) network for future evolution, a terminal device in an NR communication system, etc.

3) The HARQ mechanism is as follows: in cellular-based data communication, in order to efficiently perform retransmission of data, a HARQ mechanism is introduced. The whole data transmission process can be as follows: and the network equipment sends scheduling information and data information to the terminal equipment. And after receiving the scheduling information, the terminal equipment receives the data information according to the indication of the scheduling information. And the terminal equipment demodulates and decodes the data information, and if the data information is correctly demodulated and decoded, the terminal equipment feeds back ACK (acknowledgement character) to the network equipment. And if the data information is demodulated and decoded wrongly, feeding back NACK to the network equipment. For example, as shown in fig. 2, the network device may send scheduling information at slot (slot) n, where the scheduling information may instruct the terminal device to receive data information at slot n +2 and feed back HARQ information at slot n + 4. Correspondingly, after receiving the scheduling information, the terminal device receives the data information at the time slot n +2 according to the indication of the scheduling information, demodulates and decodes the data information, and feeds back HARQ information at the time slot n +4 according to the demodulation and decoding result, where the HARQ information may specifically be ACK or NACK. Accordingly, the network device may end transmission of the data information after receiving the ACK. The network device may retransmit the data information when receiving the NACK. Optionally, the HARQ mechanism may include Transport Block (TB) based transmission and retransmission, and/or Code Block Group (CBG) based transmission and retransmission.

4) TB based transmission and retransmission: a transmitting end cuts a Transport Block (TB) into a plurality of Code Blocks (CBs), and each CB performs Cyclic Redundancy Check (CRC) check and coding. And for the receiving end, when all the CBs in the TB are decoded correctly, feeding back ACK to the transmitting end. And after receiving the ACK, the transmitting end transmits new TB data. Or, for the receiving end, when any CB in the TBs has an error in decoding, a NACK is fed back to the transmitting end. And after receiving the NACK, the sending end sends the TB again until receiving the retransmission of the AKC or the TB and reaching a certain threshold.

In an example, as shown in fig. 3, a transmitting end may divide a TB to be transmitted into 4 CBs, and indexes of the 4 CBs may be CB0, CB1, CB2, and CB3 in sequence. And the transmitting end transmits the 4 CBs to the receiving end by taking the TB as a unit. Accordingly, the receiving end may demodulate and/or decode CBs 0 through 3 in the TB after receiving the TB. For example, referring to fig. 3 (steps numbered "1" and "2"), if any one of CB0 through CB3 is in error in demodulation and/or decoding (in the example shown in fig. 3, it is explained by taking CB0 error as an example), NACK is fed back to the transmitting end. Correspondingly, the transmitting end retransmits the TB when receiving the NACK. For example, referring to fig. 3 (steps numbered "3" and "4"), if all of CBs 0 through 3 demodulate and/or decode correctly, an ACK is fed back to the transmitting end. Accordingly, the transmitting end ends transmission of the TB when receiving the ACK.

5) CBG based transmission and retransmission: the sending end cuts the TB into N CBs and cuts the N CBs into M CBGs. Optionally, the size of N is related to the length of TB, and the size of M is configured by the network device. And after receiving the TB, the receiving end sequentially demodulates and/or decodes the M CBGs. For a CBG, if each CB in the CBG demodulates and/or decodes correctly, an ACK is fed back, and if any CB in the CBG demodulates and/or decodes incorrectly, a NACK is fed back.

In an example, as shown in fig. 4, the transmitting end may cut a TB to be transmitted into 4 CBs, and the numbers of the 4 CBs are CB0, CB1, CB2 and CB3, respectively. The 4 CBs were cut into 2 CBGs numbered CBG0 and CBG1, respectively. The CBG0 comprises CB0 and CB1, and the CBG1 comprises CB2 and CB 3. After receiving the TB, the receiving end demodulates and/or decodes CB0 and CB1 included in CBG0, and demodulates and/or decodes CB2 and CB3 included in CBG1, respectively.

Illustratively, as shown in fig. 4 (see the steps labeled "1" and "2" in fig. 4), the CB0 and the CB1 included in the CBG0 are demodulated and decoded, and if the CB0 is demodulated and decoded incorrectly, the CB1 is demodulated and decoded correctly, and a NACK is fed back for the CBG 0. The CB2 and the CB3 included in the CBG1 are demodulated and decoded, and if the demodulation and decoding of the CB2 and the CB3 are both correct, ACK is fed back to the CBG 1. The receiving end feeds back (NACK, ACK) for the entire TB. Accordingly, the sender retransmits the CBG0 separately after receiving (NACK, ACK).

For example, as shown in fig. 4 (see the steps labeled "3" and "4" in fig. 4), if the demodulation and decoding of CB0 to CB3 are both correct for CBG0, ACK is fed back for both CBG0 and CBG 1. The receiving end feeds back (ACK ) for the entire TB. Accordingly, the transmitting end finishes transmitting the entire TB after receiving (ACK ).

6) Sequential transmission (in order transmission): taking data information a and HARQ feedback a corresponding to scheduling information a, and data information B and HARQ feedback B corresponding to scheduling information B as an example, a process of sequential transmission is described in detail. For example, sequential transmission may refer to that if scheduling information a is transmitted earlier in the time domain than scheduling information B, then data information a is transmitted earlier in the time domain than data information B, and HARQ feedback a is transmitted earlier in the time domain than HARQ feedback B. For example, as shown in fig. 5, in an example of sequential transmission, scheduling information a is transmitted in a time slot n, scheduling information B is transmitted in a time slot n +1, and the transmission time of scheduling information a in the time domain is earlier than that of scheduling information B. Data information a is transmitted in time slot n +2, data information B is transmitted in time slot n +3, and the transmission time of data information a in the time domain is earlier than that of data information B. HARQ feedback a is transmitted in slot n +4 and HARQ feedback B is transmitted in slot n +5, with HARQ feedback a being transmitted earlier in time than HARQ feedback B.

7) Out of order transmission: taking data information a and HARQ feedback a corresponding to scheduling information a, and data information B and HARQ feedback B corresponding to scheduling information B as an example, a process of non-sequential transmission is described in detail. For example, non-sequential transmission may refer to if scheduling information a is transmitted earlier in the time domain than scheduling information B, but data information a is transmitted later in the time domain than data information B, and/or HARQ feedback a is transmitted later in the time domain than HARQ feedback B. As shown in fig. 6a, in an example of non-sequential transmission, scheduling information a is transmitted in slot n, scheduling information B is transmitted in slot n +1, the transmission time of scheduling information a is earlier than that of scheduling information B in the time domain, data information a is transmitted in slot n +3, data information B is transmitted in slot n +2, the transmission time of data information a is later than that of data information B, HARQ feedback a is transmitted in slot n +4, HARQ feedback B is transmitted in slot n +5, and the transmission time of HARQ feedback a is earlier than that of HARQ feedback B in the time domain. As shown in fig. 6B, in an example of non-sequential transmission, scheduling information a is transmitted in time slot n, scheduling information B is transmitted in time slot n +1, and the transmission time of scheduling information a in the time domain is earlier than that of scheduling information B. Data information a is transmitted in time slot n +2, data information B is transmitted in time slot n +3, and the transmission time of data information a in the time domain is earlier than that of data information B. HARQ feedback a is transmitted in slot n +5 and HARQ feedback B is transmitted in slot n +4, with HARQ feedback a being transmitted later in time than HARQ feedback B. It is to be appreciated that in the following example, the non-sequential transmission may also include: the transmission of scheduling information a in the time domain is earlier than that of scheduling information B, but the transmission of data information a in the time domain is later than that of data information B, and the transmission of HARQ feedback a in the time domain is later than that of HARQ feedback B.

8) Enhanced Mobile bandwidth (eMBB) service: the eMBB service has a large data volume, a high transmission rate, and a high requirement on the delay, so a long time scheduling unit is usually used to transmit data to improve the transmission efficiency, for example, one time slot at 15kHz subcarrier interval is used, corresponding to 14 time domain symbols, and the corresponding time length is 1 ms. It can be seen that the eMBB service requires low latency, and the service scheduling time interval may become long, and the interval may be 1ms or longer.

9) High-reliability Low-Latency Communications (URLLC) service: URLLC service has extremely high requirement on time delay, and under the condition of not considering reliability, the transmission time delay requirement is within 0.5 millisecond; on the premise of reaching 99.999 percent of reliability, the transmission delay is required to be within 1 ms. In a Long Term Evolution (LTE) system, the minimum time scheduling unit is a Transmission Time Interval (TTI) with a time length of 1 ms. In order to meet the transmission delay requirement of URLLC traffic, the data transmission of the wireless air interface may use a shorter time scheduling unit, for example, a mini-slot (mini-slot) or a slot with a larger subcarrier interval as a minimum time scheduling unit. Wherein one mini-slot includes one or more time domain symbols. Alternatively, the time domain symbol may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol. When the subcarrier interval is 15kHz, one timeslot includes 6 or 7 time domain symbols, and the corresponding time length is 0.5 msec; when the subcarrier spacing is 60kHz, the time length corresponding to one timeslot is shortened to 0.125 ms. It can be seen that URLLC traffic requires low latency, so that the time interval for the network device to transmit traffic becomes short, for example, the time interval is 0.125ms, or 0.0625 ms, etc.

10) And/or: describing the association relationship of the associated object, indicating that there may be three relationships, e.g., a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

It is to be understood that the terms "first," "second," and the like in the description of the present application are used for descriptive purposes only and not for purposes of indicating or implying relative importance, nor order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The application provides a communication method and a communication device, and the principle of the communication method and the communication device is as follows: the terminal device may use different processing modes for the data information sent by the network device, for example, the data information may be discarded, buffered, or demodulated and decoded normally. And the terminal equipment reports the processing state of the data information to the network equipment, so that the network equipment can process the data information differently according to different conditions. For example, for the discarded processing state, the network device may retransmit, and for the buffered processing state, the network device may not retransmit any more, and may directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the terminal equipment feeding back NACK, the network equipment always carries out retransmission processing mode, and network overhead can be saved.

As shown in fig. 7, a flow of a communication method is provided, where a network device in the flow may be the access network device 102 or the core network device 103 shown in fig. 1, and a terminal device may be the terminal device 101 shown in fig. 1, and the flow includes:

and S701, the network equipment sends first data information to the terminal equipment.

S702, the terminal equipment processes the first data information to obtain the processing state of the first data information.

And S703, the terminal equipment sends feedback information to the network equipment.

In an example, the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine a processing state of the first data information. Illustratively, the processing state of the first data information includes: the first data information is demodulated and decoded or the first data information is not demodulated and/or decoded. Optionally, the first data information is not demodulated and/or decoded completely, and includes: the first data information is discarded; alternatively, the first data information is cached. Optionally, the first data information is discarded (e.g., discard).

In an example, the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing status of the first data information. Optionally, the processing state of the first data information includes that the first data information is discarded, or the first data information is cached. For example, if the first flag is a first value, ACK is determined; or, if the first identifier is a second value, determining NACK; or, if the first identifier is a third value, determining that the first data information is discarded; or, if the first identifier is a fourth value, it is determined that the first data information is cached. For example, 2 bits may be used to represent the first flag, where the first value is 00, the second value is 01, the third value is 10, and the fourth value is 10.

Optionally, the process shown in fig. 7 may further include: and when the network equipment receives the feedback information, acquiring a first identifier and a second identifier in the feedback information. And the network equipment determines the processing state of the first data information according to the first identifier and the second identifier. And the network equipment carries out corresponding processing according to the processing state of the first data information. Illustratively, when the processing status of the first data information is discarded, the network device may retransmit the first data information, and accordingly, the terminal device receives the retransmitted first data information, and the Redundancy Version (RV) of the retransmitted first data information and the discarded first data information is the same. In an example, when the processing status of the first data information is buffered, the network device may send a first indication to the terminal device, and the terminal device demodulates and/or decodes the buffered first data information according to the first indication, and feeds back ACK or NACK according to a result of the demodulation and/or decoding. For example, if the terminal device demodulates and decodes the buffered first data information correctly, ACK is fed back, otherwise NACK is fed back, etc. Optionally, the function of the first indication may be further described as follows: the first indication may activate the terminal device to perform HARQ-ACK feedback only, that is, the terminal device may perform feedback on HARQ-ACK only once after receiving the first indication, and the feedback content in HARQ-ACK may be ACK or NACK, and the like. Further, after receiving the first indication, the terminal device may not complete demodulation and/or decoding of the buffered first data information. The UE needs to complete demodulation and/or decoding first, and then performs HARQ-ACK feedback according to the demodulation and decoding result. For example, if demodulation and decoding are correct, the HARQ-ACK feedback is ACK, otherwise, the HARQ-ACK feedback is NACK, and the like.

As can be seen from the above, in the embodiment of the present application, the terminal device may report the processing state of the first data information to the network device, and correspondingly, the network device performs different processing according to different processing states of the first data information. For example, for the discarded processing condition, the network device may adopt retransmission, and for the buffered condition, the network device may not retransmit any more, and may directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the terminal equipment feeding back NACK, the network equipment always carries out retransmission processing mode, and network overhead can be saved.

It should be noted that, in the embodiment of the present application, the terminal device may adopt different processing manners for the cached data information. For example, the terminal device may find its own time to demodulate and/or decode the buffered data information. Or, after receiving the retransmission signaling, the terminal device combines the buffered data information and the retransmitted data information, and then performs demodulation and/or decoding. Or, after receiving other signaling, the terminal device demodulates and/or decodes the buffered data information, and so on. For example, the other information may be signaling for only making HARQ-ACK feedback, etc.

Example 1

In this embodiment, a value of the first identifier may be a first value or a second value, and a value of the second identifier may be a third value, a fourth value, or a fifth value. For example, the first flag may be represented by 1bit, the first value may be 0, and the second value may be 1. The second flag may be represented by 2 bits, the third value may be 00, the fourth value may be 01, and the fifth value may be 10. It should be understood that, in the embodiment of the present application, the first value of the first identifier is 0, the second value is 1, the third value of the second identifier is 00, the fourth value is 01, and the fifth value is 10, which are taken as examples and are not intended to limit the present application.

For example, as shown in table 1, if the first identifier is a first value and the second identifier is a third value, it is determined that the processing state of the first data information is that the first data information is cached; or, if the first identifier is a first value and the second identifier is a fourth value, determining that the processing state of the first data information is that the first data information is discarded; or, if the first identifier is a first value or a second value, and the second identifier is a fifth value, it is determined that the processing state of the first data information is that the demodulation and decoding of the first data information are completed.

TABLE 1

Optionally, the first identifier and/or the second identifier are further used to determine ACK or NACK. For example, if the first identifier is a second value, the first identifier is determined to be ACK; or, if the first identifier is a first value and the second identifier is a fifth value, the NACK is determined.

For example 1 above, an application scenario is provided: as shown in fig. 8, the network device sends DCI-1 to the terminal device in time slot n, and the DCI-1 schedules the terminal device to receive PDSCH-1 in time slot n +2 and send HARQ feedback-1 in time slot n + 5. The PDSCH-1 carries first data information. The HARQ feedback 1 may carry ACK or NACK. Optionally, DCI-1, PDSCH-1 and HARQ feedback-1 may be applied to the eMBB service. For the eMBB service, see the description in the above-mentioned concept description 8).

As shown in fig. 8, the network device sends DCI-2 to the terminal device in slot n +1, and the DCI-2 schedules the terminal device to receive PDSHC-2 in slot n +3 and send HARQ feedback-2 in slot n + 4. And the PDSCH-2 carries second data information. The HARQ feedback-2 may carry an ACK or NACK. Optionally, DCI-2, PDSCH-2 and HARQ feedback-2 may be applied to URLLC traffic. For URLLC service, see the description in the above-mentioned conceptual description 9).

As can be seen from the above analysis, DCI-1 is transmitted in slot n, DCI-2 is transmitted in slot n +1, and DCI-1 is transmitted earlier in the time domain than DCI-2. HARQ feedback-1 is transmitted in slot n +5, HARQ feedback-2 is transmitted in slot n +4, HARQ feedback-1 is transmitted later in time than HARQ feedback-2, and non-sequential transmission occurs.

For the non-sequential transmission shown in fig. 8, the processing state of the PDSCH-1 by the terminal device may be fed back to the network device. For example, the processing state of PDSCH-1 may be carried into HARQ feedback-1, as described in example 1.1 below. Alternatively, the processing state of PDSCH-1 may be carried into HARQ feedback-2, as described in example 1.2 below. Wherein, the processing state of the PDSCH-1 may be specifically represented by the first identifier and/or the second identifier shown in table 1 in the above example 1.

Example 1.1, for the case of non-sequential transmission shown in fig. 8, HARQ feedback-1 sent by the terminal device may include two parts, namely a first part (part1) and a second part (part 2). The first part can be ACK/NACK, and the second part can be the processing state of the terminal equipment on PDSCH-1. Optionally, the terminal device may perform different processing on the PDSCH-1 according to its own processing capability. For example, when the processing capability of the terminal device is high and the non-sequential transmission does not affect the processing of the PDSCH-1 by the terminal device, the terminal device may perform normal demodulation and decoding on the PDSCH-1. Or, when the processing capability of the terminal device is low and the non-sequential transmission affects the processing of the PDSCH-1 by the terminal device, the terminal device may buffer the PDSCH-1 or discard the processing mode of the PDSCH-1. Correspondingly, after the network equipment determines the processing state of the terminal equipment on the PDSCH-1, different processing can be performed according to the processing state of the terminal equipment. Compared with the processing mode that the terminal equipment directly discards the PDSCH-1, feeds back NACK and retransmits the PDSCH-1, the processing method can reduce network overhead, improve system capacity and improve user experience.

Illustratively, in example 1.1, the first part in HARQ feedback-1 may be represented by 1 bit. For example, ACK may be represented by 1 and NACK may be represented by 0. The second part in HARQ feedback-1 can be represented by 2 bits. For example, may be cached as represented by 00. And 01 indicates discard. And 10 indicates that demodulation and decoding are completed.

Correspondingly, after receiving the HARQ feedback-1 fed back by the terminal device, the network device may first parse the content of the first part in the HARQ feedback-1, and if the content of the first part is "1", it indicates that the demodulation and decoding of the PDSCH-1 have been completed, and the transmission is correct, and ignores the content of the second part. If the content in the first part is "0", parsing is performed according to the content in the second part. For example, if the content in the second portion is "00", it indicates that PDSCH-1 is buffered. If the content in the second portion is "01," this indicates that PDSCH-1 has been discarded. If the content in the second part is "10", it indicates that the PDSCH-1 has completed demodulation and decoding, but has been transmitted with errors.

Optionally, when the HARQ feedback-1 information of multiple PDSCH-1 is fed back in the same uplink channel, that is, when the codebook of PDSCH-1 is multiplexed and fed back together. Because the PDSCH-1 closest to the PDSCH-2 is affected most in the PDSCH-1, in order to reduce the complexity of the terminal and the base station, HARQ feedback can be enhanced for the data closest to the PDSCH-1 in the PDSCH-1.

The target PDSCH-1 and the non-target PDSCH-1 are set in the plurality of PDSCH-1. Among the multiple PDSCH-1, the closest PDSCH-2 is the target PDSCH-1. Among the plurality of PDSCH-1, the remaining PDSCH-1 except for the target PDSCH-1 may be referred to as a non-target PDSCH-1. Then, the HARQ feedback corresponding to the target PDSCH-1 includes two parts, the first part is ACK/NACK, and the second part is the processing state of the terminal device on PDSCH-1. And the HARQ feedback corresponding to the PDSCH-1 corresponding to the non-target PDSCH-1 only comprises a part which is ACK/NACK.

For example, as shown in fig. 9, the plurality of PDSCH-1 may be represented as mPDSCH1, mPDSCH2, and mPDSCH 3. mPDSCH1 corresponds to HARQ feedback 1, mPDSCH2 corresponds to HARQ feedback 2, and mPDSCH3 corresponds to HARQ feedback 3. PDSCH2 may be denoted as udsch. HARQ feedback 1, HARQ feedback 2, and HARQ feedback 3 may be fed back in a target HARQ feedback, which may include two parts, a first part and a second part, respectively. The first part comprises ACK/NACK corresponding to mDSCH 1, ACK/NACK corresponding to mDSCH 2 and ACK/NACK corresponding to mDSCH 3. Since mPDSCH3 is closest to the uPDSCH in the time domain, the processing status of mPDSCH3 by the terminal device is included in the second part. Alternatively, still referring to fig. 9, the upsch may be fed back through HARQ feedback 4.

Example 1.2, for the case of non-sequential transmission shown in fig. 8, HARQ feedback-2 fed back by the terminal device may include two parts, namely a first part (part1) and a second part (part 2). The first part can be ACK/NACK, and the second part can be the processing state of the terminal equipment on PDSCH-1.

In the embodiment of the application, the processing state of the PDSCH-1 is placed in the HARQ feedback-2, so that the influence caused by missed detection of the PDCCH-1 can be reduced, that is, if the terminal device misses the PDCCH-1, the feedback of the PDSCH-1 is not influenced.

Example 2

The value of the first identifier may be an eighth value or a ninth value, and the value of the second identifier may be a sixth value or a seventh value. The first and second identities may each be represented by 1 bit. For example, the sixth value may be 1, the seventh value may be 0, the eighth value may be 0, and the ninth value may be 1. It should be understood that, in the embodiment of the present application, the sixth value may be 1, the seventh value may be 0, the eighth value may be 0, and the ninth value may be 1, which are taken as examples and are not intended to limit the present application.

For example, as shown in table 2, if the second identifier is a sixth value and the first identifier is an eighth value, it is determined that the processing status of the first data information is that the first data information is discarded; or, if the second identifier is a sixth value and the first identifier is a ninth value, it is determined that the processing state of the first data information is that the first data information is cached.

First identification (eighth value/ninth value)Value)	Second identifier (sixth value/seventh value)	Meaning interpretation
			Eighth value (0)	Sixth value (1)	Is discarded
Ninth value (1)	Sixth value (1)	Is cached
			Eighth value (0)	Seventh value (0)	NACK
Ninth value (1)	Seventh value (0)	ACK

TABLE 2

Optionally, as shown in table 2 above, the first identifier and/or the second identifier are further used to determine ACK or NACK. For example, if the second identifier is a seventh value and the first identifier is an eighth value, NACK is determined; or, if the second identifier is a seventh value and the first identifier is a ninth value, determining ACK.

For example 2, an application scenario is provided: this application scenario can be referred to as the description in fig. 8 in example 1 above, and will not be described here. In the embodiment of the application, the terminal device may feed back the processing state of the PDSCH-1 to the network device. For example, the processing state of the PDSCH-1 may be carried in HARQ feedback-1, or the processing state of the PDSCH-1 may be carried in HARQ feedback-2. Wherein the processing status of the PDSCH-1 may be represented by the first identifier and/or the second identifier shown in table 2 in example 2 above.

Example 2.1, for the case of the non-sequential transmission shown in fig. 8, the HARQ feedback-1 fed back by the terminal device may include two parts, namely a first part and a second part. The first part can be ACK/NACK, and the second part can be the processing state of the terminal equipment on PDSCH-1. For example, the processing state of the terminal device for the PDSCH-1 may be that the terminal device completes demodulation and decoding of the PDSCH-1, or that the terminal device does not complete demodulation and/or decoding of the PDSCH-1.

Illustratively, the first part in HARQ feedback-1 may be represented by 1 bit. For example, ACK may be represented by "1" and NACK may be represented by "0". The second part in HARQ feedback-1 can be represented by 1 bit. For example, "0" may be used to indicate that demodulation and decoding are complete. A "1" may be used to indicate that demodulation and decoding are not complete.

Correspondingly, after receiving the HARQ feedback-1 fed back by the terminal device, the network device may analyze the second part of content first. And parsing the content of the first part according to the parsing of the second part.

For example, if the content of the second part is "0", it indicates that the terminal device has completed demodulation and decoding of HARQ feedback-1. At which time the first portion of content is demodulated. If the first part content is "1", an ACK is indicated. If the first portion of content is "0," a NACK is indicated.

For example, if the content of the second part is "1", it indicates that the terminal device has not demodulated and decoded HARQ feedback-1. At which time the first portion of content is demodulated. If the first portion content is "0," it indicates that PDSCH-1 is discarded. If the first part content is "1", it indicates that PDSCH-1 is buffered. It is understood that, in the embodiment of the present application, the first part content may also be "1", which indicates that PDSCH-1 is buffered. The first part is "0", which means PDSCH-1 is discarded, etc., and is not meant to limit the present application.

Therefore, the feedback efficiency is improved through the ACK/NACK joint analysis. By adopting the method, when the receiving end decodes the content of the second part in error, for example, the error of '0' is analyzed into '1', the negative effect caused by the error is small.

Example 2.2 for the case of non-sequential transmission shown in fig. 8, the HARQ feedback-2 fed back by the terminal device may include two parts, namely a first part and a second part. The first part is ACK/NACK, and the second part is the processing state of the terminal equipment to the PDSCH.

In one example, the first portion in HARQ feedback-2 may be represented by 1 bit. For example, ACK may be represented by "1" and NACK may be represented by "0". The second part in HARQ feedback-2 is denoted by 1 bit. For example, "0" may be used to indicate that demodulation and decoding are complete. A "1" may be used to indicate that demodulation and decoding are not complete. Regarding the processing procedure of the network device for the second part in HARQ feedback-2, reference may be made to the description in example 2.1 above, and a description thereof is omitted here.

Therefore, the processing state of the PDSCH-1 is placed in the HARQ feedback-2, so that the influence caused by missed detection of the PDCCH-1 can be reduced, namely, if the PDCCH-1 is missed, the feedback of the PDSCH-1 is not influenced by the terminal equipment.

Example 3

In the embodiment of the present application, the second identifier may be carried in the feedback acknowledgement information of the first data information, or the second identifier may be carried in the feedback acknowledgement information of the second data information. For example, the feedback information of the first data information is the first HARQ feedback, and the feedback information of the second data information is the second HARQ feedback. For the case where the second identifier is carried in the first HARQ feedback, see the above description of example 1.1 and example 2.1. For the case that the second identifier is carried in the second HARQ feedback, see the above description of example 1.2 and example 2.2. It should be noted that, in the above example 1.1, example 1.2, example 2.1, and example 2.2, the first HARQ is denoted as HARQ feedback-1, and the second HARQ is denoted as HARQ-2.

Example 4

And setting the first data information to correspond to the first HARQ feedback, and setting the second data information to correspond to the second HARQ feedback. Alternatively, the transmission of the first data information and the second data information may be non-sequential. For example, as shown in fig. 10, the first data information is transmitted in slot 2 and the second data information is transmitted in slot 3. The first data information is transmitted earlier in the time domain than the second data information. The first HARQ feedback is transmitted in slot 6 and the second HARQ feedback is transmitted in slot 4. The transmission of the first HARQ feedback is later in time domain than the second HARQ feedback.

In an embodiment of the present application, the network device or the terminal device may determine the processing state of the first data information by using any one or more of the following examples 4.1, 4.2, and 4.3. It is understood that in the embodiment of the present application, the network device or the terminal device may also determine the processing state of the first data information in other manners, and the following examples 4.1 to 4.3 are not intended to limit the present application. It should be noted that, in the following examples 4.1 to 4.3 of the embodiment of the present application, some conditions are predefined, and a network device or a terminal device may determine a processing state of data information according to the predefined conditions, which does not need to perform additional information exchange, and reduces air interface overhead.

Example 4.1 (according to N3, the processing status of the first data information is determined. regarding the concept of N3, see the description in example 4.4).

When N3 is greater than or equal to the threshold 1, it may be considered that the demodulation and decoding of the first data information are not affected in the non-sequential transmission scenario, that is, the processing state of the first data information is that the demodulation and decoding of the first data information are completed. Optionally, the value of threshold 1 may be 5 symbols or 10 symbols.

When N3 is greater than or equal to threshold 2 and less than threshold 1, it may be considered that the terminal device can only buffer the first data information and cannot demodulate and/or decode the first data information, that is, the processing status of the first data information is that the first data information is buffered. Optionally, the value of the threshold 2 may be 3 symbols or 5 symbols.

When N3 is smaller than the threshold 2, the terminal device may be considered to discard the first data information, that is, the processing status of the first data information is that the first data information is discarded.

Example 4.2 (the processing state of the first data information is determined according to N3 and N4. for the description of N3 and N4, see the description of example 4.4).

When N3+ N4 is greater than the threshold 1, it is determined that the terminal device is capable of completing decoding, or the phenomenon called non-sequential transmission, does not affect the demodulation and decoding of the first data information by the terminal device, i.e. the processing state of the first data information is that the demodulation and decoding of the first data information are completed. Optionally, the value of the threshold 1 may be 10.

When N3+ N4 is greater than the threshold 2 and less than or equal to the threshold 1, the terminal device may be considered to be capable of buffering only the first data information and not capable of demodulating and/or decoding the first data information, that is, the processing status of the first data information is that the first data information is buffered. Optionally, the value of the threshold 2 may be 6.

When N3+ N4 is less than or equal to the threshold 2, the terminal device is considered to discard the first data information, that is, the processing status of the first data information is that the first data information is discarded.

Example 4.3

In embodiments of the present application, the HARQ mechanism may include TB-based transmission and retransmission, and/or CBG-based transmission and retransmission. The transmission and retransmission based on TB can be referred to as the description in the conceptual description 4), and the transmission and retransmission based on CBG can be referred to as the description in the conceptual description 5), and will not be described here.

For example, N3 and N4 are illustrated with TB-based transmission and retransmission as examples. As shown in fig. 11, it is set that the first data information and the second data information are transmitted in TB units. Wherein, the TB transmitting the first data information may be referred to as an eMBB TB. The TB transmitting the second data information may be referred to as URLLC TB. The HARQ feedback corresponding to the first data information is called eMBB HARQ feedback, and the HARQ feedback corresponding to the second data information is called URLLC HARQ feedback.

Still referring to fig. 11, it is assumed that 1 timeslot includes 14 time domain symbols, and the numbers of the 14 time domain symbols are sequentially the 1 st symbol to the 14 th symbol. As can be seen from fig. 11, the eMBB TB is transmitted in the slot 2, and occupies all time domain symbols in the slot 2, that is, a starting time domain symbol occupied by the eMBB TB in the slot 2 is a 1 st symbol, and an ending time domain symbol is a 14 th symbol. Similarly, the URLLC TB is transmitted in slot 3, and occupies 11 time domain symbols in slot 3, the beginning time domain symbol of the URLLC TB in slot 3 is the 4 th symbol, and the ending time domain symbol is the 14 th symbol. The N3 may be defined as the number of time domain symbols spaced between the ending time domain symbol for transmitting eMBB TB in slot 2 and the starting time domain symbol for transmitting URLLC TB in slot 3. As can be seen from fig. 11, the number of time domain symbols is 3, i.e., N3 may take a value of 3.

Further, still referring to fig. 11, the URLLC HARQ is transmitted in slot 4, and occupies 3 time domain symbols in slot 4, the beginning time domain symbol of the URLLC HARQ in slot 4 is the 5 th symbol, and the ending time domain symbol is the 7 th symbol. N4 may be defined as the number of time domain symbols spaced between the starting time domain symbol for transmitting URLLC HARQ in slot 4 and the ending time domain symbol for transmitting URLLC TB in slot 3, as can be seen from fig. 11, the number of time domain symbols is 4, that is, the value of N4 may be 4.

For example, the transmission and retransmission based on CBG are taken as an example, and N3 and N4 are explained. As shown in fig. 12, it is set that the first data information and the second data information are transmitted in TB units. Wherein, the TB transmitting the first data information may be referred to as an eMBB TB. The TB transmitting the second data information may be referred to as URLLC TB. The HARQ feedback corresponding to the first data information is called eMBB HARQ, and the HARQ feedback corresponding to the second data information is called URLLC HARQ.

As shown in fig. 12, the entire eMBB service TB is divided into 4 CBGs, which are numbered 0 to 3. In the time domain, CBG0 occupies symbol 0 to symbol 2 in slot 2 for transmission, CBG1 occupies symbol 3 to symbol 5 in slot 2 for transmission, CBG2 occupies symbol 6 to symbol 8 in slot 2 for transmission, and CBG3 occupies symbol 9 to symbol 11 in slot 2 for transmission.

For example, still referring to fig. 12, the URLLC TB is transmitted in slot 3, occupying symbols 2 through 13 in slot 3. Then, for CBG0, the value of N3 is the number of symbols separated between the ending time domain symbol of CBG0 in slot 2 (i.e., symbol 2 in slot 2) and the starting slot symbol for transmission of URLLC TB in slot 3 (i.e., symbol 2 in slot 3). The values of N3 in CBG 1-CBG 3 are similar to the values of N3 in CBG0, and are not described here.

The value of the threshold 1 in the above example 4.1 is set to 9, and the value of the threshold 2 is set to 6. The method disclosed according to example 4.1 above:

the condition that N3 in CBG0 and CBG1 is greater than or equal to threshold 1 is satisfied, and thus the data processing status corresponding to CBG0 and CBG1 is that demodulation and decoding have been completed. The CBG2 can only satisfy the condition of being greater than or equal to the threshold 2, and therefore the data processing status corresponding to the CBG2 is buffered. The condition of greater than or equal to 2 is not satisfied for CBG3, so the data processing state corresponding to CBG3 is discarded.

Optionally, to simplify the complexity of the network device and the terminal device, the definition of N3 only takes one threshold 1 (as the value of the threshold 1 may be 10 symbols), and when the CBG in the first data information and the second data interval N3 are smaller than the threshold 1, the network device and the terminal device consider that the CBG needs to be discarded. When the interval N3 between the CBG in the first data and the second data is greater than or equal to the threshold 1, the network device and the terminal device consider that the CBG can be demodulated and decoded. That is, when the

CBGs

0 and 1 in the first data and the interval N3 between the second data are both greater than the threshold 1, the network device and the terminal device consider that the demodulation and decoding can be completed for the CBGs 0 and CBGs 1, and the fed back ACK/NACK is valid. If the

CBGs

2 and 3 in the first data and the interval N3 between the second data are both smaller than the threshold 1, the network device and the terminal device consider that the demodulation and decoding can not be completed for the CBGs 2 and 3, the terminal device may discard the

CBGs

2 and 3, and the fed back ACK/NACK is invalid.

It is to be understood that "discard" in the embodiment of the present application may mean that the terminal device does not decode the relevant data block, and may also be referred to as "skipping decoding of the data block".

Optionally, in the embodiment of the present application, the setting of the thresholds corresponding to N3 in the above example 4.1 and N3+ N4 in the above example 4.2 may be related to the following factors:

subcarrier spacing of data. For example, the smaller the subcarrier interval, the larger the corresponding symbol length is, and the smaller the threshold value of N3 or N3+ N4 may be;

and scheduling the bandwidth by the data. For example, the larger the data bandwidth, the longer the demodulation and/or decoding time required, and the larger the threshold of N3 or N3+ N4.

For example, see table 3 below for the setting of the N3 threshold in example 4.1 above. Alternatively, the scheduling bandwidth in table 3 may refer to a scheduling bandwidth of the eMBB service. For the setting of the N3+ N4 threshold in the above example 4.2, see table 4 below. Optionally, the maximum scheduling bandwidth in table 4 may refer to a maximum scheduling bandwidth between the eMBB service and the URLLC service.

TABLE 3

	Subcarrier spacing	Maximum scheduled bandwidth	Threshold	1	Threshold 2
						Case 1	15KHZ	<50PRB	5	3
Case 2	15KHZ	50--100PRB	4	2
					Case 3	15KHZ	>100PRB	3	2
Case 4	30KHZ	<50PRB	8	5
					Case 5	30KHZ	50--100PRB	5	3
Case 6	30KHZ	>100PRB	4	2

TABLE 4

Example 5

In embodiments of the present application, the HARQ mechanism may include TB-based transmission and retransmission, and/or CBG-based transmission and retransmission. The transmission and retransmission based on TB can be referred to as described in conceptual description 4), and the transmission and retransmission based on CBG can be referred to as described in conceptual description 5).

For example, based on transmission and retransmission of TBs, since only one ACK/NACK is fed back for the entire TB, the processing state of data information may be directly increased after the feedback information of the entire TB. The processing status of how to add data information can be referred to the descriptions of the above examples 1 and 2, and will not be described here.

For example, based on the transmission and retransmission of CBGs, since one or more CBGs are included in one TB, since ACK/NACK is fed back for each CBG, the processing status of data information can be added after the feedback information of each CBG (see the description in example 5.1 below); alternatively, only the processing state of one data information is added for the entire TB (see the description in example 5.2 below).

Example 5.1 feedback information is added separately for each CBG feedback.

For example, the newly added feedback information in each CBG can be represented by 2 bits. For example, if 4 CBGs are included in 1 TB, 2 bits of feedback information are added for each of the 4 CBGs. Alternatively, the newly added feedback information in each CBG may be represented by 1 bit. For example, 4 CBGs are included in 1 TB, and 1bit of feedback information is added to each of the 4 CBGs. Optionally, for the processing method of adding 2-bit feedback information, the description in the above example 2.1 may be referred to, and for the processing method of adding 1-bit feedback information, the description in the above example 2.2 may be referred to.

Example 5.2 only one data information is added for the entire TB. For example, if 4 CBGs are included in 1 TB, only a part of feedback information may be newly added for the 4 CBGs.

For example, as shown in table 5, taking the TB including 4 CBGs with numbers 0 to 3 as an example, the HARQ feedback of the entire TB includes two parts, namely a first part (part1) and a second part (part 2). The first part corresponds to the original CBG HARQ-ACK feedback, and the second part is a newly added bit. Optionally, for the newly added bit of the second part, 1bit may be used for representation. When the value of the second part is 0, it indicates that all CBGs in the TB have completed demodulation and decoding. When the value of the second portion is 1, it indicates that at least the last CBG in the TB is discarded.

TABLE 5

For the above setting, the processing procedure of the network device side may be: the abandoned boundary of the CBG is found out firstly, then the boundary for completing the CBG demodulation and decoding is found out, and finally the abandoned CBG, the demodulated and decoded CBG, the buffered CBG and the like are determined.

For example, the transmission times are ordered according to the sequence of CBG0 to CBG7, ACK is represented by 1, and NACK is represented by 0. As shown in table 6, the whole analysis process can be as follows:

1: the part1 data information is judged from the last CBG (i.e., CBG 7): if the part1 information is 1, the previous CBG (e.g. CBG6) is considered to be discarded until the part1 information with the first 0 is resolved (e.g. the part1 information corresponding to CBG5 is 0). Where 0 indicates that the previous CBG was not discarded.

2: judging the first CBG which is not discarded, and if the part1 information of the CBG is 0, considering the CBG as a cache; the parsing of the part1 information of the CBG is continued until the first CBG is 1 (for example, the part1 information corresponding to the CBG2 is 1). Wherein, 1 indicates that the current CBG is correctly decoded (i.e. is ACK); optionally, the network device may also resolve the cache into NACK when determining the cache in step 2, which is not limited in this embodiment of the present application.

3: after the first ACK occurs, all the CBGs consider that demodulation and decoding are completed, namely the first ACK or the first NACK can be analyzed;

TABLE 6

Alternatively, in example 5.2, the second part of information may be represented by 2 bits, and the parsing process is similar to the parsing process shown in table 5, and will not be described here. For example, the 2bit representation process may be as follows:

00: indicates that all CBGs complete demodulation and decoding.

01: indicating that there is a CBG to be discarded while there is a CBG to be cached.

10: indicating that no CBG was discarded, but that CBG was cached.

11: indicating that only CBGs are discarded and no CBGs are cached.

Optionally, in this embodiment of the application, when the second part of information is 10, the parsing process of the first part of information may be as shown in table 7:

TABLE 7

Specifically, when the second part is 10, 0 may represent buffering from the last CBG until the first 1 position is resolved and is determined to be ACK, and then all subsequent positions are determined to be complete decoding and are resolved to be NACK or ACK.

Optionally, in this embodiment of the application, when the second part of information is 11, the parsing process of the first part may be as shown in table 8:

TABLE 8

Specifically, when the second part is 10, 0 indicates that the buffer is discarded from the last CBG until the first 1 position is resolved and is determined to be ACK, and then all subsequent positions are determined to be complete decoding and are resolved to be NACK or ACK.

Example 6

In this embodiment, the terminal device may report the capability of the non-sequential transmission to the network device, and for a reporting process corresponding to the non-sequential transmission capability and a corresponding processing method of the terminal device, refer to table 9 or table 10 below.

TABLE 9

Watch 10

Optionally, the network device may schedule the terminal device according to the non-sequential transmission processing capability reported by the terminal device. Further, the network device may configure, through high-level signaling, whether a non-sequential transmission scenario will occur within a certain time period, and if so, how the terminal device handles, etc.

It should be understood that, in the embodiments of the present application, different examples may be used in combination with each other or alone, and the embodiments of the present application are not limited thereto.

In the embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of the terminal device, the network device, and the interaction between the terminal device and the network device. It is understood that, for each network element, for example, the terminal device and the network device, to implement each function in the method provided in the foregoing embodiments of the present application, the terminal device and the network device include a hardware structure and/or a software module corresponding to executing each function. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. 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.

In the embodiment of the present application, the terminal device and the network device may be divided into the functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Based on the above concept, as shown in fig. 13, the present application further provides a communication apparatus 1300, where the communication apparatus 1300 may be configured to implement the method shown in fig. 7 in the above flowchart, and the communication apparatus 1300 may be applied to a terminal device or a chip of the terminal device. The communication device 1300 may include a transceiver module 1301 and a processing module 1302.

In an example, the transceiver module 1301 is configured to receive first data information; a processing module 1302, configured to process the first data information received by the transceiver module 1301, so as to obtain a processing state of the first data information; the transceiver module 1301 is further configured to send feedback information, where the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine a processing state of the first data information.

In an example, the transceiver module 1301 is configured to receive first data information; a processing module 1302, configured to process the first data information received by the transceiver module 1301; the transceiver module 1301 is further configured to send feedback information, where the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing state of the first data information.

For the specific functions of the transceiver module 1301 and the processing module 1302, reference may be made to the description of the above method embodiments, and the description is not repeated here.

It should be noted that, in the communication device 1300, the physical device corresponding to the processing module 1302 may be the controller/processor 1403 shown in fig. 14 described below, and the physical device corresponding to the transceiver module 1301 may be the receiver 1402 or the transmitter 1401 shown in fig. 14 described below.

Fig. 14 shows a simplified schematic diagram of a possible design structure of the terminal device involved in the above-described embodiment. Terminal device 1400 can include a transmitter 1401, receiver 1402, controller/processor 1403, memory 1404, and modem processor 1405.

Wherein transmitter 1401 conditions (e.g., converts to analog, filters, amplifies, and frequency upconverts, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the network devices in the embodiments described above. In the downlink, the antenna receives the downlink signal transmitted by the network device in the above-described embodiment. The receiver 1402 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. In modem processor 1405, an encoder 1406 receives traffic data and signaling information sent on the uplink and processes (e.g., formats, encodes, and interleaves) the traffic data and signaling messages. A modulator 1407 further processes (e.g., symbol maps and modulates) the coded traffic data and signaling messages and provides output samples. A demodulator 1409 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 1408 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to the UE. The encoder 1406, modulator 1407, demodulator 1409, and decoder 1408 may be implemented by a combined modem processor 1405. These units are handled according to the radio access technology employed by the radio access network (e.g., NR and access technologies of other evolved systems).

Illustratively, the controller/processor 1403 performs control management of the actions of the terminal device for performing the processing performed by the terminal device in the above-described embodiment. For example, the controller/processor 1403 may control the receiver 1402 to receive the first data information, process the first data information, obtain a processing status of the first data information, and control the transmitter 1401 to transmit the feedback information, and/or other processes described in embodiments of the present application. Alternatively, the controller/processor 1403 may be used to support the terminal device in performing the steps related to the terminal device in fig. 7, etc., for example. The memory 1404 may store program codes and data related to the terminal apparatus 1400.

It should be noted that the terminal device 1400 provided in the embodiment of the present application is used to implement the communication method related to the terminal device in the communication shown in fig. 7, or the function of the terminal device in the flow shown in fig. 7. Only the connection relationship between the modules of the terminal device 1400 is described here, and the specific scheme and the specific executed action of the terminal device 1400 for processing the communication method are referred to the related description in the above method embodiment, and will not be described here.

Based on the above concept, as shown in fig. 15, the present application further provides a communication apparatus 1500, where the communication apparatus 1500 may be used to implement the method shown in fig. 7 in the above flowchart, and the communication apparatus 1500 may be applied to a network device or a chip of the network device. The communication device 1500 may include a transceiver module 1501. Optionally, a processing module 1502 may also be included.

In an example, the transceiver module 1501 may be configured to transmit the first data information and receive the feedback information. The feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information. Optionally, the processing module 1502 may be configured to determine the first data information, or process the feedback information, and the like.

In an example, the transceiver module 1501 may be configured to transmit the first data information and receive the feedback information. The feedback information includes a first identifier, where the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or a processing state of the first data information. Optionally, the processing module 1502 may be configured to determine the first data information, or process the feedback information, and the like.

It should be noted that in the communication device 1500, the entity device corresponding to the processing module 1502 may be the controller/processor 1602 shown in fig. 16 described below, and the entity device corresponding to the transceiving module 1501 may be the transmitter or receiver 1601 shown in fig. 16 described below.

Fig. 16 shows a schematic diagram of a possible structure of the network device involved in the foregoing embodiments, and the network device 1600 may include: a transmitter/receiver 1601, a controller/processor 1602, and a memory 1603.

Illustratively, the transmitter/receiver 1601 is used for supporting information transmission and reception between the network device and the terminal device in the above-described embodiments, and for supporting radio communication between the network device and other terminal devices. A controller/processor 1602 performs various functions for communicating with the terminal devices. In the uplink, uplink signals from the terminal device are demodulated by the receiver 1601 via the antenna interface and further processed by the controller/processor 1602 to recover traffic data and signaling messages, etc. sent by the terminal device. On the downlink, traffic data and signaling messages are processed by controller/processor 1602 and demodulated by a transmitter 1601 to generate a downlink signal, which is transmitted via the antenna to the terminal devices.

Illustratively, the controller/processor 1602 manages the actions of the network device for performing the processing performed by the network device in the above-described embodiments. For example, the controller/processor 1602 may control the transmitter 1601 to transmit first data information, and/or control the receiver 1601 to receive feedback information, and/or other processes described in embodiments herein, etc. Alternatively, the controller/processor 1602 may be configured to enable the terminal device to perform the steps involved in the network device of fig. 7, and/or the like, for example.

The memory 1603 may store program codes and data related to the network device 1600. The network device 1600 may also include a communication unit 1604, the communication unit 1604 being configured to enable the network device to communicate with other network entities.

It should be noted that the network device 1600 provided in this embodiment of the present application may be used to implement the function of the network device in the communication method shown in fig. 7, where only the connection relationship between the modules in the network device 1600 is described here, and specific schemes and specific actions performed by the network device 1600 in processing the communication method are described in the above method embodiments and are not described here again.

According to the method provided by the embodiment of the present application, an embodiment of the present application further provides a communication system, which includes the foregoing network device and terminal device.

Based on the above embodiments, the present application further provides a computer storage medium, in which a software program is stored, and the software program can implement the method provided by any one or more of the above embodiments when being read and executed by one or more processors. The computer storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

Based on the above embodiments, the present application further provides a chip, where the chip includes a processor, and is configured to implement the functions related to any one or more of the above embodiments, such as obtaining or processing information or messages related to the above methods. Optionally, the chip further comprises a memory for storing program instructions and data for execution by the processor. The chip may also contain chips and other discrete devices.

It should be understood that in the embodiments of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general purpose processors, Digital Signal Processors (DSPs), application-specific integrated circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor, any conventional processor, etc.

The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory.

The bus system may include a power bus, a control bus, a status signal bus, and the like, in addition to the data bus. For clarity of illustration, however, the various buses are labeled as a bus system in the figures. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a 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. To avoid repetition, it is not described in detail here.

Claims

1. A method of communication, comprising:

receiving first data information;

processing the first data information to obtain a processing state of the first data information;

sending feedback information, wherein the feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information;

the processing state of the first data information comprises: the first data information is demodulated and decoded or the first data information is not demodulated and/or decoded; the first data information is not demodulated and/or decoded completely, and comprises: the first data information is discarded; alternatively, the first data information is cached.

2. The method of claim 1, wherein the first identifier and/or the second identifier is used to determine a processing state of the first data information, comprising:

if the first identifier is a first value and the second identifier is a third value, determining that the processing state of the first data information is that the first data information is cached; or,

if the first identifier is a first value and the second identifier is a fourth value, determining that the processing state of the first data information is that the first data information is discarded; or,

and if the first identifier is a first value or a second value and the second identifier is a fifth value, determining that the processing state of the first data information is that the demodulation and decoding of the first data information are finished.

3. The method according to claim 1 or 2, wherein the first identity and/or the second identity are also used for determining a positive acknowledgement, ACK, or a negative acknowledgement, NACK.

4. The method of claim 3, wherein the first identity and/or the second identity are further used for determining a positive Acknowledgement (ACK) or a Negative Acknowledgement (NACK), comprising:

if the first identifier is a second value, the first identifier is determined to be ACK; or,

and if the first identifier is a first value and the second identifier is a fifth value, the first identifier is determined to be NACK.

5. The method of claim 1, wherein the first identifier and/or the second identifier is used to determine a processing state of the first data information, comprising:

if the second identifier is a sixth value and the first identifier is an eighth value, determining that the processing state of the first data information is that the first data information is discarded; or,

and if the second identifier is a sixth value and the first identifier is a ninth value, determining that the processing state of the first data information is that the first data information is cached.

6. The method according to claim 5, wherein the first identity and/or the second identity are further used for determining a positive acknowledgement, ACK, or a negative acknowledgement, NACK.

7. The method of claim 6, wherein the first identity and/or the second identity are further used for determining a positive Acknowledgement (ACK) or a Negative Acknowledgement (NACK), comprising:

if the second identifier is a seventh value and the first identifier is an eighth value, determining NACK; or,

and if the second identifier is a seventh value and the first identifier is a ninth value, determining ACK.

8. The method of claim 1, 2, 4, 5, 6, or 7, wherein the second identifier is carried in feedback response information of the first data information, or wherein the second identifier is carried in feedback response information of second data information, the second data information being different from the first data information.

9. The method of claim 1, 2, 4, 5, 6, or 7, further comprising:

receiving retransmitted first data information, wherein the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or,

receiving first indication information;

and demodulating and/or decoding the cached first data information according to the first indication information, and feeding back ACK or NACK according to the demodulation and/or decoding result.

10. A method of communication, comprising:

sending first data information;

receiving feedback information, wherein the feedback information comprises a first identifier and a second identifier, and the first identifier and/or the second identifier are/is used for determining the processing state of the first data information;

11. The method of claim 10, wherein the first identifier and/or the second identifier is used to determine a processing state of the first data information, comprising:

12. The method according to claim 10 or 11, wherein the first identity and/or the second identity are also used for determining a positive acknowledgement, ACK, or a negative acknowledgement, NACK.

13. The method of claim 12, wherein the first identity and/or the second identity are further used for determining a positive acknowledgement, ACK, or a negative acknowledgement, NACK, comprising:

14. The method of claim 10, wherein the first identifier and/or the second identifier is used to determine a processing state of the first data information, comprising:

15. The method according to claim 14, wherein the first identity and/or the second identity are further used for determining a positive acknowledgement, ACK, or a negative acknowledgement, NACK.

16. The method of claim 15, wherein the first identity and/or the second identity are further used for determining a positive Acknowledgement (ACK) or a Negative Acknowledgement (NACK), comprising:

17. The method of claim 10, 11, 13, 14, 15 or 16, wherein the second identifier is carried in feedback response information of the first data information, or wherein the second identifier is carried in feedback response information of second data information, the second data information being different from the first data information.

18. The method of claim 10, 11, 13, 14, 15, or 16, further comprising:

sending retransmitted first data information, wherein the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or,

and sending first indication information, wherein the first indication information is used for indicating the terminal equipment to demodulate and/or decode the cached first data information, and feeding back ACK or NACK according to the demodulation and/or decoding result.

19. A communications apparatus, comprising:

the receiving and sending module is used for receiving first data information;

the processing module is used for processing the first data information received by the transceiver module to obtain the processing state of the first data information;

the transceiver module is further configured to send feedback information, where the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine a processing state of the first data information;

the processing module obtains a processing state of the first data information, and comprises:

the first data information is demodulated and decoded or the first data information is not demodulated and/or decoded;

the first data information is not demodulated and/or decoded completely, and comprises: the first data information is discarded; alternatively, the first data information is cached.

20. The apparatus as claimed in claim 19, wherein said first identifier and/or said second identifier is used to determine a processing status of said first data information, comprising:

21. The apparatus as claimed in claim 19, wherein said first identifier and/or said second identifier is used to determine a processing status of said first data information, comprising:

22. The apparatus of any one of claims 19 to 21,

the transceiver module is further configured to receive retransmitted first data information, where the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or,

the transceiver module is further configured to receive first indication information;

the processing module is further configured to demodulate and/or decode the buffered first data information according to the first indication information, and feed back ACK or NACK according to a result of the demodulation and/or decoding.

23. A communications apparatus, comprising:

the processing module is used for determining first data information;

a transceiver module, configured to send the first data information determined by the processing module, and receive feedback information, where the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine a processing state of the first data information;

24. The apparatus as recited in claim 23, wherein said first identifier and/or said second identifier is used to determine a processing state of said first data information, comprising:

25. The apparatus as recited in claim 23, wherein said first identifier and/or said second identifier is used to determine a processing state of said first data information, comprising:

26. The apparatus of any one of claims 23 to 25,

the transceiver module is further configured to send retransmitted first data information, where the retransmitted first data information is the same as the redundancy version RV of the discarded first data information; or,

the transceiver module is further configured to send first indication information, where the first indication information is used to indicate a terminal device to demodulate and/or decode the cached first data information, and to feed back ACK or NACK according to a demodulation and/or decoding result.

27. A computer-readable storage medium, comprising: computer software instructions;

the computer software instructions, when run in a communication device or a chip built into a communication device, cause the device to perform the method of any one of claims 1 to 18.