CN110034867B

CN110034867B - Method, terminal equipment and network equipment for transmitting HARQ-ACK

Info

Publication number: CN110034867B
Application number: CN201810130607.XA
Authority: CN
Inventors: 李娜; 沈晓冬; 马景智
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-01-11
Filing date: 2018-02-08
Publication date: 2020-09-08
Anticipated expiration: 2038-02-08
Also published as: CN110034860B; CN110034860A; CN110034867A

Abstract

The invention discloses a method, terminal equipment and network equipment for transmitting HARQ-ACK, wherein the method enables a terminal to use the cyclic shift bit number of a corresponding sequence to bear the HARQ-ACK when the terminal carries out HARQ-ACK feedback to a base station by designing the number of bits included in the HARQ-ACK and the mapping relation between whether an SR request is sent or not and the cyclic shift bit number of the sequence bearing the HARQ-ACK. Therefore, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

Description

Method, terminal equipment and network equipment for transmitting HARQ-ACK

Technical Field

The present invention relates to the field of communications, and in particular, to a method, a terminal device and a network device for transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK).

Background

A terminal may use a Computer Generated Sequence (CGS) with a length of 12 when transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) and/or a Scheduling Request (SR) to a base station on a physical uplink control channel (PDCCH/ePDCCH). One CGS may include 12 cyclic shift bits (CS), and the HARQ-ACK may be one bit or two bits. The terminal can use a specific CS to send at least one of the HARQ-ACK and the SR request under four different application scenarios, namely sending the HARQ-ACK with one bit and sending the SR request, sending the HARQ-ACK with one bit and not sending the SR request, sending the HARQ-ACK with two bits and sending the SR request, and sending the HARQ-ACK with two bits and not sending the SR request. Therefore, the HARQ-ACK with different bit numbers and the mapping relation between whether the SR request is sent and the cyclic shift bit number of the sequence carrying the HARQ-ACK need to be designed, so that when the terminal performs HARQ-ACK feedback to the base station, the terminal can use the cyclic shift bit number of the corresponding sequence to carry the HARQ-ACK. Thus, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge the receiving state of the terminal or whether to send the SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

Disclosure of Invention

The embodiment of the invention provides a method for sending HARQ-ACK, terminal equipment and network equipment, and aims to solve the problem that a base station cannot accurately judge the receiving state of a terminal on a DL-SCH transmission block or whether a resource request exists when the terminal fails to detect the DL-SCH transmission block sent by the base station in the prior art.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, a method for transmitting HARQ-ACK is provided, which is applied to a terminal device, and the method includes:

selecting a target mapping relation from a plurality of mapping relations according to the number of bits included in the HARQ-ACK and whether to send the SR request, wherein the plurality of mapping relations comprise: the number of bits is 1, a first mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the SR request is sent, a second mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 1 and the SR request is not sent, a third mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 2 and the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK are established when the SR request is not sent;

and determining the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the value state of the bits included by the HARQ-ACK and the target mapping relation.

In a second aspect, a method for transmitting HARQ-ACK is provided, which is applied to a network device, and includes:

receiving a sequence carrying HARQ-ACK;

selecting a target mapping relation from a plurality of mapping relations according to the number of bits included in HARQ-ACK (hybrid automatic repeat request-acknowledgement) needing to be reported by a terminal, wherein the plurality of mapping relations comprise: the number of bits is 1, a first mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the SR request is sent, a second mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 1 and the SR request is not sent, a third mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 2 and the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK are established when the SR request is not sent;

and determining the value state of the bits included in the HARQ-ACK and whether the terminal sends an SR request or not according to the cyclic shift bit number of the sequence bearing the HARQ-ACK and the target mapping relation.

In a third aspect, a terminal device is provided, which includes:

a selecting module, configured to select a target mapping relationship from a plurality of mapping relationships according to the number of bits included in the HARQ-ACK and whether to send an SR request, where the plurality of mapping relationships include: the number of bits is 1, a first mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the SR request is sent, a second mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 1 and the SR request is not sent, a third mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 2 and the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK are established when the SR request is not sent;

and the determining module is used for determining the number of cyclic shift bits of the sequence bearing the HARQ-ACK according to the value state of the bits included by the HARQ-ACK and the target mapping relation.

In a fourth aspect, a network device is provided, the network device comprising:

the receiving module receives a sequence carrying HARQ-ACK;

a selecting module, configured to select a target mapping relationship from multiple mapping relationships according to the number of bits included in the HARQ-ACK that needs to be reported by the terminal, where the multiple mapping relationships include: the number of bits is 1, a first mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the SR request is sent, a second mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 1 and the SR request is not sent, a third mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is established when the number of the bits is 2 and the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK are established when the SR request is not sent;

and the determining module is used for determining the value state of the bits included by the HARQ-ACK and whether the terminal sends the SR request or not according to the cyclic shift bit number of the sequence bearing the HARQ-ACK and the target mapping relation.

In a fifth aspect, a terminal device is provided, the terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the first aspect.

In a sixth aspect, a network device is provided, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the second aspect.

In a seventh aspect, a computer-readable storage medium is provided, characterized in that the computer-readable storage medium has stored thereon a computer program, which when executed by a processor implements the steps of the method according to the first aspect.

In an eighth aspect, a computer-readable storage medium is provided, wherein a computer program is stored on the computer-readable storage medium, which computer program, when executed by a processor, performs the steps of the method according to the second aspect.

In the technical scheme provided by the embodiment of the invention, by designing the mapping relation between the number of bits included in the HARQ-ACK and whether the SR request is sent or not and the cyclic shift bit number of the sequence carrying the HARQ-ACK, the terminal can use the cyclic shift bit number of the corresponding sequence to carry the HARQ-ACK when carrying out HARQ-ACK feedback to the base station. Therefore, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a flow chart illustrating a method for transmitting HARQ-ACK according to an embodiment of the present invention;

fig. 2 is a flow chart illustrating a method for transmitting HARQ-ACK according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a network device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description and in the claims "and/or" means at least one of the connected objects.

When the terminal performs data transmission with the base station on the PDCCH/ePDCCH, after the base station sends a data block to the terminal, if the terminal successfully receives and decodes the data block, the terminal may send ACK to the base station, and if the terminal does not successfully decode the received data block, the terminal may send NACK to the base station. In addition, if the terminal does not detect the data block transmitted by the base station, the terminal will not have any transmission on the PDCCH (i.e., DTX). If the base station determines that the terminal does not successfully decode the received data block, the parity bit may be retransmitted to the terminal, and if the base station determines that the terminal does not detect the data block transmitted by the base station, the data block may be retransmitted to the terminal.

When the terminal requests resources from the base station on the PDCCH/ePDCCH, the terminal can send an SR request to the base station. In general, a terminal may simultaneously transmit an SR request to a base station when transmitting HARQ-ACK (including both ACK and NACK states). Specifically, the terminal may transmit HARQ-ACK and SR requests to the base station using a CGS of length 12. One CGS may include 0-11 available cyclic shift bits, namely CS.

The number of cyclic shift bits that the terminal can use in four different application scenarios is defined in 3GGP TS 38.213. Specifically, the examples are shown in tables 1 to 4.

Table 1 shows the number of cyclic shift bits (CS) of a sequence (sequence) that can be used when the terminal transmits a one-bit HARQ-ACK and transmits an SR request. In table 1, the HARQ-ACK of one bit includes a Value status (HARQ-ACK Value) "0" and "1" of two bits, where "0" may indicate that the terminal has not successfully decoded a received data block, i.e., the terminal needs to feed back NACK of one bit to the base station, and "1" may indicate that the terminal has successfully decoded a received data block, i.e., the terminal needs to feed back ACK of one bit to the base station.

TABLE 1

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

As can be seen from table 1, when the terminal sends the SR request, the number of cyclic shift bits that the terminal can use when feeding back ACK to the base station is 3; the number of cyclic shift bits that the terminal can use when feeding back NACK to the base station is 9.

Table 2 shows the number of cyclically shifted bits of a sequence that can be used by the terminal when transmitting a one-bit HARQ-ACK and not transmitting an SR request. The HARQ-ACK of one bit in table 2 also includes the value states "0" and "1" of two bits, which can be referred to the above description of table 1, and will not be described repeatedly here.

TABLE 2

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

As can be seen from table 2, in the case that the terminal does not send the SR request, the number of cyclic shift bits that the terminal can use when feeding back ACK to the base station is 0; the number of cyclic shift bits that the terminal can use when feeding back NACK to the base station is 6.

Table 3 shows the number of cyclic shift bits of a sequence that can be used by the terminal when transmitting two-bit HARQ-ACK and transmitting an SR request. The HARQ-ACK of two bits in table 3 includes four bit values of "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }", where "{ 0, 0 }" may indicate that the terminal did not successfully decode the received data block of two bits, i.e., the terminal needs to feed back (NACK ) to the base station, "{ 0, 1 }" may indicate that the terminal did not successfully decode the received first data block, successfully decode the received data block of the second bit, i.e., the terminal needs to feed back (NACK, ACK) to the base station, "{ 1, 1 }" may indicate that the terminal successfully decodes the received data block of two bits, i.e., the terminal needs to feed back (ACK ) to the base station, and "{ 1, 0 }" may indicate that the terminal successfully decodes the received first data block, and unsuccessfully decodes the received data block of the second bit, i.e. the terminal needs to feed back (ACK, NACK) to the base station.

TABLE 3

Value state of a bit	{0，0}	{0，1}	{1，1}	{1，0}
					Number of cyclically shifted bits of sequence	1	4	7	11

As can be seen from table 3, when the terminal sends the SR request, the number of cyclic shift bits that can be used when the terminal feeds back (NACK ) to the base station is 1; the number of cyclic shift bits that can be used by the terminal when feeding back (NACK, ACK) to the base station is 4; the number of cyclic shift bits that can be used by the terminal when feeding back (ACK ) to the base station is 7; the number of cyclic shift bits that can be used by the terminal when feeding back (ACK, NACK) to the base station is 11.

Table 4 shows the number of cyclically shifted bits of a sequence that can be used by the terminal when transmitting two-bit HARQ-ACK and not transmitting SR request. The HARQ-ACK with two bits in table 4 also includes four bit values of "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }", and it can be specifically referred to the above description in table 3, and the description is not repeated here.

TABLE 4

Value of a bitStatus of state	{0，0}	{0，1}	{1，1}	{1，0}
					Number of cyclically shifted bits of sequence	0	3	6	9

As can be seen from table 4, when the terminal does not send the SR request, the number of cyclic shift bits that can be used when the terminal feeds back (NACK ) to the base station is 0; the number of cyclic shift bits that can be used by the terminal when feeding back (NACK, ACK) to the base station is 3; the number of cyclic shift bits that can be used by the terminal when feeding back (ACK ) to the base station is 6; the number of cyclic shift bits that can be used by the terminal when feeding back (ACK, NACK) to the base station is 9.

However, in practical applications, after the base station sends the data block to the terminal, the terminal may have a missed detection phenomenon, and taking the example that the base station schedules 2 PDSCHs to feed back on one PUCCH, since the terminal misses one PDSCH, the terminal only feeds back one bit of HARQ-ACK on the corresponding PUCCH. If the terminal needs to send a one-bit SR request to request uplink UL-SCH resource at this time, it can be known from table 1 above that:

if the terminal successfully decodes the detected PDSCH, the terminal will transmit ACK and SR of one bit by using cyclic shift bit number 9 of the sequence, but on the base station side, the base station expects to receive HARQ-ACK of two bits, and will understand the cyclic shift bit number used by the terminal in the manner of HARQ-ACK of 2 bits, that is, the base station will understand that the terminal transmits (ACK, NACK) based on table 4, and the terminal has no resource scheduling requirement;

if the terminal does not decode the detected PDSCH successfully, the terminal will transmit NACK and SR of one bit using cyclic shift bit number 3 of the sequence, but on the base station side, the base station expects to receive HARQ-ACK of two bits, and will understand the cyclic shift bit number used by the terminal in the manner of HARQ-ACK of 2 bits, that is, the base station will understand that the terminal transmits (NACK, ACK) based on table 4, and the terminal has no resource scheduling requirement.

Therefore, when the base station sends two PDSCHs to the terminal, as long as the terminal misses one PDSCH, the SR request sent by the terminal cannot be accurately understood by the base station no matter whether the terminal successfully receives and decodes the other PDSCH or not, that is, the base station cannot receive the SR request sent by the terminal, so that the base station cannot timely find the scheduling requirement of the terminal and timely allocate corresponding UL-SCH resources to the terminal.

In addition, in the mapping relationship between the value state of the bit included in the HARQ-ACK and the cyclic shift bit number of the sequence, the value state "0" of the bit included in the HARQ-ACK of one bit in table 2 and the value state "{ 0, 0} of the bit included in the HARQ-ACK of two bits in table 4 both correspond to the cyclic shift bit number 0 of the sequence, and the value state" 1 "of the bit included in the HARQ-ACK of one bit in table 2 and the value state" {1, 1} of the bit included in the HARQ-ACK of two bits in table 4 both correspond to the cyclic shift bit number 6 of the sequence.

Thus, when the base station schedules 2 PDSCHs for feedback on one PUCCH, the terminal misses one PDSCH and does not need to send an SR request, if the terminal does not successfully decode the received one PDSCH, the terminal will send NACK to the base station using the cyclic shift bit number 0 of the sequence; if the terminal successfully decodes the received PDSCH, the terminal sends an ACK to the base station using the cyclic shift bit number 6 of the sequence. However, on the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal according to the HARQ-ACK of two bits based on table 4, that is, the base station may erroneously understand that the terminal transmits (NACK ) or (ACK, ACK).

For ACK fed back by the terminal, the terminal needs the base station to retransmit the missed PDSCH, but for (ACK ) understood by the base station, the base station erroneously understands the PDSCH that the terminal does not miss, so the base station does not retransmit the PDSCH, and the base station cannot accurately judge whether the terminal misses, thereby affecting data transmission between the terminal and the base station.

In summary, the above-mentioned mapping relationship between the number of HARQ-ACKs and the number of cyclic shift bits of the sequence has a drawback, when the terminal fails to detect the data block sent by the base station, the base station cannot accurately determine whether the terminal fails to detect or whether the terminal has a resource request, that is, the base station cannot distinguish DTX from NACK/ACK or cannot receive an SR in time.

In view of this, an embodiment of the present invention provides a method, a terminal device, and a network device for transmitting HARQ-ACK, where the method is applied to the terminal device, and the method includes: selecting a target mapping relation from a plurality of mapping relations according to the number of bits included in the HARQ-ACK and whether to send the SR request, wherein the plurality of mapping relations comprise: a first mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 1 and an SR (positive SR) request is sent, a second mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 1 and no SR (negative SR) request is sent, the number of bits is 2, a third mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is obtained when the SR request is sent, a fourth mapping relation between the cyclic shift bit number of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK is obtained when the number of bits is 2 and the SR request is not sent, and the cyclic shift bit number included in the first mapping relation and/or the second mapping relation is different from the cyclic shift bit number included in the fourth mapping relation; and determining the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the value state of the bits included by the HARQ-ACK and the target mapping relation.

In this way, by designing the mapping relationship between the number of bits included in the HARQ-ACK and whether to send the SR request and the number of cyclic shift bits of the sequence carrying the HARQ-ACK, the terminal can use the number of cyclic shift bits of the corresponding sequence to carry the HARQ-ACK when performing HARQ-ACK feedback to the base station. Therefore, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

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

The technical scheme of the invention can be applied to various communication systems, such as: global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE)/enhanced Long Term evolution (LTE-a), nr (new Radio), and the like.

A User Equipment (UE), which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile User Equipment (UE), and the like, may communicate with one or more core networks via a Radio Access Network (RAN, Radio Access Network, for example), and the User Equipment may be a Mobile Terminal, such as a Mobile phone (or referred to as a "cellular" phone) and a computer having a Mobile Terminal, such as a portable, pocket, handheld, computer-included, or vehicle-mounted Mobile device, and may exchange languages and/or data with the Radio Access Network.

The Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved node b (eNB or e-NodeB) and a 5G Base Station (gNB) in LTE.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Fig. 1 is a flowchart illustrating a method for transmitting HARQ-ACK according to an embodiment of the present invention, where the method is applied to a terminal device, and the method is described as follows.

Step 102: and selecting a target mapping relation from the plurality of mapping relations according to the number of bits included in the HARQ-ACK and whether the SR request is sent.

In step 102, when feeding back HARQ-ACK to the base station, the terminal may select a target mapping relationship from the multiple mapping relationships according to the number of bits included in the HARQ-ACK that needs to be fed back and whether to send an SR request, so as to determine the number of cyclic shift bits of a sequence carrying HARQ-ACK according to the target mapping relationship.

In this embodiment of the present invention, the multiple mapping relationships may specifically include four mapping relationships, which are a first mapping relationship, a second mapping relationship, a third mapping relationship, and a fourth mapping relationship, where the first mapping relationship is a mapping relationship between the number of bits being 1 and the number of cyclic shift bits of a sequence carrying HARQ-ACK when an SR (positive SR) request is sent and the value state of the bits included in the HARQ-ACK, and may be used to represent the number of cyclic shift bits of a sequence that can be used by a terminal when the terminal sends HARQ-ACK of one bit to a base station and sends an SR request;

the second mapping relationship is a mapping relationship between the number of cyclic shift bits of a sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 1 and no SR (negative SR) request is sent, and may be used to characterize the number of cyclic shift bits that the terminal may use when the terminal sends the HARQ-ACK of one bit to the base station and does not send an SR request;

the third mapping relationship is a mapping relationship between the number of bits being 2 and the value state of the bits included in the HARQ-ACK and the number of cyclic shift bits of the sequence carrying the HARQ-ACK when the SR request is sent, and may be used to characterize the number of cyclic shift bits of the sequence that the terminal may use when the terminal sends the HARQ-ACK of two bits to the base station and sends the SR request;

the fourth mapping relationship is a mapping relationship between the number of cyclic shift bits of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 2 and the SR request is not sent, and may be used to characterize the number of cyclic shift bits that the terminal may use when the terminal sends the HARQ-ACK of two bits to the base station and does not send the SR request.

It should be noted that the second mapping relationship includes a mapping relationship between the number of cyclic shift bits of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 1 at the transmission time configured as the SR request and the terminal does not need to transmit the SR request (1-bit HARQ-ACK and negative SR), or a mapping relationship between the number of cyclic shift bits of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 1 (1-bit HARQ-ACK only) at the transmission time not configured as the SR request;

the fourth mapping relationship includes a mapping relationship between the number of cyclic shift bits of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 2 at the transmission time configured as the SR request and the UE does not need to transmit the SR request (2-bit HARQ-ACK and negative SR), or a mapping relationship between the number of cyclic shift bits of the sequence carrying the HARQ-ACK and the value state of the bits included in the HARQ-ACK when the number of bits is 2 (2-bit HARQ-ACK) at the transmission time not configured as the SR request.

In this embodiment of the present invention, in order to enable the base station to accurately determine the receiving state of the terminal and whether the terminal sends the SR request, at least the first mapping relationship may be different from the fourth mapping relationship, or the second mapping relationship is different from the fourth mapping relationship, or both the first mapping relationship and the second mapping relationship are different from the fourth mapping relationship. Therefore, when the terminal feeds back the HARQ-ACK to the base station, the terminal can use the cyclic shift bit number of the corresponding sequence to bear the HARQ-ACK, and after the base station receives the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, so that normal data transmission between the terminal and the base station is ensured. Specifically, the method comprises the following steps:

in an embodiment of the present invention, the first mapping relationship, the second mapping relationship, the third mapping relationship, and the fourth mapping relationship may be respectively as shown in tables 5 to 8:

TABLE 5

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

TABLE 6

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	4	10

TABLE 7

Value state of a bit	{0，0}	{0，1}	{1，1}	{1，0}
					Number of cyclically shifted bits of sequence	1	4	7	10

TABLE 8

Value state of a bit	{0，0}	{0，1}	{1，1}	{1，0}
					Number of cyclically shifted bits of sequence	0	3	6	9

In tables 5 and 6, the Value states (HARQ-ACK values) of bits included in the HARQ-ACK of one bit are "0" and "1", respectively, where "0" may indicate that the terminal has not successfully decoded a received data block, that is, the terminal needs to feed back NACK of one bit to the base station, and "1" may indicate that the terminal has successfully decoded a received data block, that is, the terminal needs to feed back ACK of one bit to the base station.

HARQ-ACK of two bits in table 7 and table 8 includes bits with value status of "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }", wherein "{ 0, 0 }" may indicate that the terminal did not successfully decode the received data block of two bits, i.e. the terminal needs to feed back (NACK ) to the base station, "{ 0, 1 }" may indicate that the terminal did not successfully decode the received first data block, successfully decode the received data block of the second bit, i.e. the terminal needs to feed back (NACK, ACK) to the base station, "{ 1, 1 }" may indicate that the terminal successfully decodes the received data block of two bits, i.e. the terminal needs to feed back (ACK ) to the base station, "{ 1, 0 }" may indicate that the terminal successfully decodes the received first data block, and unsuccessfully decodes the received data block of the second bit, i.e. the terminal needs to feed back (ACK, NACK) to the base station.

The four mapping relations provided by the embodiment of the invention can ensure that the base station can not accurately judge whether the terminal is missed to be detected only under the condition that the terminal sends the SR request, thereby reducing the occurrence probability that the base station can not judge whether the terminal is missed to be detected.

Specifically, based on the above tables 5 to 8, it can be seen that:

the value state "0" of a bit included in the HARQ-ACK of one bit in table 5 and the value state "{ 0, 0 }" of a bit included in the HARQ-ACK of two bits in table 7 both correspond to the cyclic shift bit number 1 of the sequence; the value state "1" of the bit included in the HARQ-ACK of one bit in table 5 and the value state "{ 1, 1 }" of the bit included in the HARQ-ACK of two bits in table 4 both correspond to the cyclic shift bit number 7 of the sequence;

the value state "0" of the bit included in the HARQ-ACK of one bit in table 6 and the value state "{ 0, 1} of the bit included in the HARQ-ACK of two bits in table 7 both correspond to the cyclic shift bit number 4 of the sequence, and the value state" 1 "of the bit included in the HARQ-ACK of one bit in table 6 and the value state" {1, 0} of the bit included in the HARQ-ACK of two bits in table 7 both correspond to the cyclic shift bit number 10 of the sequence.

Thus, when the base station schedules 2 PDSCHs for feedback on one PUCCH, if the terminal misses one of the PDSCHs, the terminal may send HARQ-ACK to the base station, where at least the following situations exist:

in the first case: the terminal unsuccessfully decodes the received PDSCH and sends an SR request.

In this case, the terminal may transmit NACK to the base station using the cyclic shift bit number 1 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 1 of the sequence used by the terminal, specifically the terminal sends a (NACK ) according to the HARQ-ACK of two bits and based on table 7, and further determines that the terminal has not successfully received two PDSCHs and sent an SR request. At this time, the base station retransmits two PDSCHs to the terminal, so that the base station can be considered to accurately understand the receiving state of the terminal.

In the second case: the terminal successfully decodes the received PDSCH and sends an SR request.

In this case, the terminal may send an ACK to the base station using cyclically shifted number of bits 7 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 7 of the sequence used by the terminal, specifically, the terminal sends an (ACK ) according to the HARQ-ACK of two bits and based on table 7, and further determines that the terminal successfully receives two PDSCHs and sends an SR request. At this time, since the base station understands that the terminal successfully receives and decodes the two PDSCHs, the base station does not retransmit the PDSCHs to the terminal, and thus, it can be considered that the base station loses the information of missing PDSCH detection by the terminal and does not accurately understand the terminal receiving state.

In the third case: the terminal does not successfully decode the received PDSCH and does not send an SR request.

In this case, the terminal transmits NACK to the base station using the cyclic shift bit number 4 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 4 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 7, and specifically understands that the terminal transmits a (NACK, ACK), and further determines that the terminal has not successfully received one of the PDSCHs and has transmitted an SR request. At this time, the base station retransmits the PDSCH to the terminal, so that the base station can be considered to partially understand the reception state of the terminal.

In a fourth case: the terminal successfully decodes the received PDSCH and does not send an SR request.

In this case, the terminal transmits ACK to the base station using the cyclic shift number of bits 10 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 10 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 7, and specifically understands that the terminal sent (ACK, NACK), and further determines that the terminal did not successfully decode one of the PDSCHs and sent an SR request. At this time, the base station retransmits the missed PDSCH to the terminal, so that the base station can be considered as not losing the information of the missed PDSCH of the terminal, and the receiving state of the terminal is accurately understood.

It follows that the base station will only misinterpret the reception of two PDSCHs by the terminal in the second case described above. Since the second condition is that the terminal needs to send the SR request, and the time for sending the SR request by the two terminals is shorter than the time for sending no SR request by the terminal, compared with the prior art, in this embodiment, the situation that the base station erroneously understands the reception situation of the two PDSCHs by the base station is limited to the situation that the terminal sends the SR request, and the occurrence probability that the base station cannot accurately judge whether the terminal missed detects the PDSCH can be greatly reduced.

It should be noted that, in the third and fourth cases, the terminal does not need to send the SR request, but the base station may misunderstand that the terminal sends the SR request, at this time, the base station may allocate the resource to the terminal, and the terminal may choose not to use the resource after receiving the resource allocated by the base station, which does not affect normal data transmission between the base station and the terminal.

It should be further noted that, in the case that the terminal does not miss detection, the terminal may feed back HARQ-ACK (may be one bit or two bits) to the base station according to the actual receiving situation and whether the terminal needs to send the SR request, and based on the mapping relationship in tables 5 to 8, at this time, the base station may determine the receiving state of the terminal and whether the terminal needs to send the SR request based on the cyclic shift bit number of the sequence used by the terminal, and the description is not repeated here.

Compared with the existing mapping relations (tables 1 to 4), the four mapping relations provided by the embodiment of the invention have the advantages that the terminal sends one-bit HARQ-ACK to the base station, and the cyclic shift digits of sequences which can be used by the terminal are different under two application scenes of sending the SR request and not sending the SR request, so that the base station can not accurately judge whether the terminal is missed to detect only when the terminal sends the SR request, and the occurrence probability that the base station cannot judge whether the terminal is missed to detect is reduced. In addition, the resource occupation of the terminal on the cyclic shift bit number of the sequence is not increased in the embodiment of the invention.

In the second embodiment of the present invention, the first mapping relationship, the second mapping relationship, the third mapping relationship and the fourth mapping relationship may be respectively shown in tables 9 to 12:

TABLE 9

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

Watch 10

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

TABLE 11

TABLE 12

In tables 9 and 10, specific physical meanings of the values of the bits "0" and "1" included in the HARQ-ACK for one bit can be referred to the above description of the values of the bits included in the HARQ-ACK for one bit in tables 5 and 6, and a description thereof is not repeated.

The physical meanings of the bit evaluation states "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }" included in the two-bit HARQ-ACKs in tables 11 and 12 can be referred to the above description of the bit evaluation states included in the two-bit HARQ-ACKs in tables 7 and 8, and the description is not repeated here.

The four mapping relations provided by the embodiment of the invention can ensure that the base station can not at least mistakenly understand whether the terminal sends the SR request no matter whether the receiving state of the terminal is accurately judged, thereby ensuring the reliability of the SR request sent by the terminal.

Specifically, based on the above tables 9 to 12, it can be seen that:

the value state "0" of a bit included in the HARQ-ACK of one bit in table 9 and the value state "{ 0, 0 }" of a bit included in the HARQ-ACK of two bits in table 11 both correspond to the cyclic shift bit number 1 of the sequence; the value state of the bit "1" included in the HARQ-ACK of one bit in table 9 corresponds to the number of cyclic shift bits 7 of the sequence, together with the value states of the bits and "{ 1, 1 }" included in the HARQ-ACK of two bits in table 11.

The value state "0" of the bit included in the HARQ-ACK of one bit in table 10 and the value state "{ 0, 1} of the bit included in the HARQ-ACK of two bits in table 12 both correspond to the cyclic shift bit number 0 of the sequence, and the value state" 1 "of the bit included in the HARQ-ACK of one bit in table 10 and the value state" {1, 1} of the bit included in the HARQ-ACK of two bits in table 7 both correspond to the cyclic shift bit number 6 of the sequence.

In this case, the terminal may transmit NACK to the base station using the cyclic shift bit number 1 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 1 of the sequence used by the terminal, specifically, the terminal sends a (NACK ) according to the HARQ-ACK of two bits and based on table 11, and further determines that the terminal has not successfully received two PDSCHs and sent an SR request. Therefore, the base station can correctly understand that the terminal sends the SR request and correctly understand the receiving state of the terminal.

In this case, the terminal may send an ACK to the base station using cyclically shifted number of bits 7 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 7 of the sequence used by the terminal, specifically, the terminal sends an (ACK ) according to the HARQ-ACK of two bits and based on table 11, and further determines that the terminal successfully receives two PDSCHs and sends an SR request. It can be seen from this that the base station can correctly understand that the terminal has transmitted the SR request, but the base station does not correctly understand the reception state of the terminal.

In this case, the terminal may transmit NACK to the base station using the cyclic shift bit number 0 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 0 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 12, and specifically understands that the terminal transmits a (NACK ), and further determines that the terminal has not successfully received two PDSCHs and has not transmitted an SR request. Therefore, the base station can correctly understand that the terminal does not send the SR request, and simultaneously the base station also correctly understands the receiving state of the terminal.

In this case, the terminal may send an ACK to the base station using the number of cyclically shifted bits 6 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 6 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 12, and specifically understands that the terminal sent (ACK ), and further determines that the terminal successfully decoded two PDSCHs and did not send an SR request. Therefore, the base station can correctly understand that the terminal does not send the SR request, but the base station does not correctly understand the receiving state of the terminal.

As can be seen from the above description of the four cases, the base station correctly understands the reception state of the terminal in the first case and the third case, and does not correctly understand the reception state of the terminal in the second case and the fourth case, and the base station does not erroneously understand whether or not the terminal has transmitted the SR request in the above four cases. Therefore, no matter whether the base station correctly understands the receiving state of the terminal or not, at least the base station cannot understand whether the wrong terminal sends the SR request or not, and the reliability of the terminal sending the SR request is ensured. In addition, compared to the existing mapping relationships (tables 1 to 4), the four mapping relationships provided in the embodiment of the present invention do not increase the number of cyclic shift bits of the sequence occupied by the terminal, that is, the number of resources occupied by the terminal, even if the base station can correctly understand whether the terminal sends the SR request.

In a third embodiment of the present invention, the first mapping relationship, the second mapping relationship, the third mapping relationship and the fourth mapping relationship may be respectively as shown in tables 13 to 16:

watch 13

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	2	8

TABLE 14

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

Watch 15

TABLE 16

Value state of a bit	{0，0}	{0，1}	{1，1}	{1，0}
					Circulation of the sequenceNumber of shift bits	0	3	6	9

In tables 13 and 14, specific physical meanings of the values of the bits "0" and "1" included in the HARQ-ACK for one bit can be referred to the above description of the values of the bits included in the HARQ-ACK for one bit in tables 5 and 6, and a description thereof is not repeated.

The physical meanings of the bit evaluation states "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }" included in the two-bit HARQ-ACKs in tables 15 and 16 can be referred to the above description of the bit evaluation states included in the two-bit HARQ-ACKs in tables 7 and 8, and the description is not repeated here.

The four mapping relations provided by the embodiment of the invention can ensure that the base station can not at least mistakenly understand whether the terminal sends the SR request no matter whether the receiving state of the terminal is accurately judged, thereby ensuring the reliability of the SR request sent by the terminal. In addition, the base station can also judge whether the terminal is missed to detect under partial conditions according to the detected cyclic shift bit number of the sequence.

Specifically, based on tables 13 to 16 described above, it can be seen that:

the value state "0" of a bit included in the HARQ-ACK of one bit in table 14 and the value state "{ 0, 0 }" of a bit included in the HARQ-ACK of two bits in table 16 both correspond to the cyclic shift bit number 0 of the sequence; the value state of the bit "1" included in the HARQ-ACK of one bit in table 14 corresponds to the number of cyclic shift bits 6 of the sequence, together with the value state of the bit and "{ 1, 1 }" included in the HARQ-ACK of two bits in table 16.

In this case, the terminal may transmit NACK to the base station using the cyclic shift number 2 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 15 or table 16 according to the HARQ-ACK of two bits, but table 15 and table 16 do not include the number of cyclic shift bits 2 of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number of cyclic shift bits 2 of the sequence transmitted by the terminal, and the terminal transmits an SR. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may send an ACK to the base station using the cyclically shifted number of bits 8 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 15 or table 16 according to the HARQ-ACK of two bits, but table 15 and table 16 do not include the number of cyclic shift bits 8 of the sequence, and therefore, the base station can determine that the terminal has a missed detection situation from the number of cyclic shift bits 8 of the sequence transmitted by the terminal, and the terminal transmits an SR. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may transmit NACK to the base station using the cyclic shift bit number 0 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 0 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 16, and specifically understands that the terminal transmits a (NACK ), and further determines that the terminal has not successfully received two PDSCHs and has not transmitted an SR request. Therefore, the base station can correctly understand that the terminal does not send the SR request, and simultaneously the base station also correctly understands the receiving state of the terminal.

In this case, the terminal may send an ACK to the base station using the number of cyclically shifted bits 6 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 6 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 16, and specifically understands that the terminal sent (ACK ), and further determines that the terminal successfully decoded two PDSCHs and did not send an SR request. Therefore, the base station can correctly understand that the terminal does not send the SR request, but the base station does not correctly understand the receiving state of the terminal.

As can be seen from the above description of the four cases, the base station can correctly understand the reception state of the terminal in the first case and the second case, and cannot correctly understand the reception state of the terminal in the third case and the fourth case, and the base station does not erroneously understand whether the terminal has transmitted the SR request in the above four cases. Therefore, no matter whether the base station correctly understands the receiving state of the terminal or not, at least the base station cannot understand whether the wrong terminal sends the SR request or not, and the reliability of the terminal sending the SR request is ensured. In addition, the base station can correctly understand the reception state of the terminal when determining that the terminal has transmitted the SR request.

In a fourth embodiment of the present invention, the first mapping relationship, the second mapping relationship, the third mapping relationship and the fourth mapping relationship may be respectively as shown in tables 17 to 20:

TABLE 17

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

Watch 18

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

Watch 19

Watch 20

Value state of a bit	{0，0}	{0，1}	{1，1}	{1，0}
					Number of cyclically shifted bits of sequence	2	5	8	11

In tables 17 and 18, specific physical meanings of the values of the bits "0" and "1" included in the HARQ-ACK for one bit can be referred to the above description of the values of the bits included in the HARQ-ACK for one bit in tables 5 and 6, and the description is not repeated here.

The physical meanings of the bit evaluation states "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }" included in the two-bit HARQ-ACKs in tables 19 and 20 can be referred to the above description of the bit evaluation states included in the two-bit HARQ-ACKs in tables 7 and 8, and the description is not repeated here.

The four mapping relationships provided by the embodiment of the invention can enable the base station to correctly understand whether the terminal sends the SR request on one hand, and can also accurately judge whether the terminal fails to detect on the other hand.

Specifically, based on tables 17 to 20 described above, it can be seen that:

the number of cyclic shift bits of the sequences contained in each table is different from the number of cyclic shift bits of the sequences contained in other tables, so that when the base station schedules 2 PDSCHs for feedback on one PUCCH, if the terminal misses one of the PDSCHs, the terminal sends HARQ-ACK to the base station, at least the following situations exist:

In this case, the terminal transmits NACK to the base station using cyclic shift bit number 3 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 19 or table 20 according to the HARQ-ACK of two bits, but table 19 and table 20 do not include the number of cyclic shift bits 3 of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number of cyclic shift bits 3 of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may send an ACK to the base station using cyclically shifted number of bits 9 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 19 or table 20 according to the HARQ-ACK of two bits, but table 19 and table 20 do not include the number of cyclic shift bits 9 of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number of cyclic shift bits 9 of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may transmit ACK to the base station using the cyclic shift bit number 0 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 19 or table 20 according to the HARQ-ACK of two bits, but table 19 and table 20 do not include the number 0 of cyclic shift bits of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number 0 of cyclic shift bits of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may send an ACK to the base station using the number of cyclically shifted bits 6 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 19 or table 20 according to the HARQ-ACK of two bits, but table 19 and table 20 do not include the number of cyclic shift bits 6 of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number of cyclic shift bits 6 of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

Based on the above four cases, it can be known that, since the cyclic shift bits of the sequences used by the terminal in different application scenarios are all different, the base station can accurately determine whether the terminal has sent the SR request and whether there is a missing detection according to the cyclic shift bits of the different sequences used by the terminal, thereby improving the reliability of the terminal sending the SR request and the accuracy of the base station in determining the receiving state of the terminal, and ensuring normal data transmission between the base station and the terminal.

In a fifth embodiment of the present invention, the first mapping relationship, the second mapping relationship, the third mapping relationship and the fourth mapping relationship may be as shown in tables 21 to 24, respectively:

TABLE 21

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

TABLE 22

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

TABLE 23

Watch 24

In tables 21 and 22, specific physical meanings of the values of the bits "0" and "1" included in the HARQ-ACK for one bit can be referred to the above description of the values of the bits included in the HARQ-ACK for one bit in tables 5 and 6, and a description thereof is not repeated.

The physical meanings of the bit evaluation states "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }" included in the two-bit HARQ-ACKs in tables 23 and 24 can be referred to the above description of the bit evaluation states included in the two-bit HARQ-ACKs in tables 7 and 8, and the description is not repeated here.

Specifically, based on tables 21 to 24 described above, it can be seen that:

In this case, the terminal transmits NACK to the base station using cyclic shift bit number 3 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 23 or table 24 according to the HARQ-ACK of two bits, but table 23 and table 24 do not include the number of cyclic shift bits 3 of the sequence, and therefore, the base station can determine that the terminal has a missed detection situation from the number of cyclic shift bits 3 of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may send an ACK to the base station using cyclically shifted number of bits 9 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 23 or table 24 according to the HARQ-ACK of two bits, but table 23 and table 24 do not include the number of cyclic shift bits 9 of the sequence, and therefore, the base station can determine that the terminal has a missed detection situation from the number of cyclic shift bits 9 of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may transmit ACK to the base station using the cyclic shift bit number 0 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 23 or table 24 according to the HARQ-ACK of two bits, but table 23 and table 24 do not include the number 0 of cyclic shift bits of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number 0 of cyclic shift bits of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

In this case, the terminal may send an ACK to the base station using the number of cyclically shifted bits 6 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits of the sequence used by the terminal based on table 23 or table 24 according to the HARQ-ACK of two bits, but table 23 and table 24 do not include the number of cyclic shift bits 6 of the sequence, and therefore, the base station can determine that the terminal has a missing detection situation from the number of cyclic shift bits 6 of the sequence transmitted by the terminal, and the terminal transmits an SR request. In this way, the base station can accurately understand the reception state of the terminal and whether or not the SR request is transmitted based on the number of cyclic shift bits of different sequences.

Based on the above four cases, it can be known that, since the cyclic shift bits of the sequences used by the terminal in different application scenarios are all different, the base station can accurately determine whether the terminal has sent the SR and whether there is a missed detection according to the cyclic shift bits of the different sequences used by the terminal, thereby improving the reliability of the SR request sent by the terminal and the accuracy of the base station in determining the receiving state of the terminal, and ensuring normal data transmission between the base station and the terminal.

In a sixth embodiment of the present invention, the first mapping relationship, the second mapping relationship, the third mapping relationship and the fourth mapping relationship may be as shown in tables 25 to 28, respectively:

TABLE 25

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

Watch 26

Value state of a bit	0	1
			Number of cyclically shifted bits of sequence	10	4

Watch 27

Watch 28

Value state of a bit	{0，0}	{0，1}	{1，1}	{1，0}
					Of sequenceNumber of cyclically shifted bits	0	3	6	9

In tables 25 and 26, the Value states (HARQ-ACK values) of bits included in the HARQ-ACK for one bit are "0" and "1", respectively, where "0" may indicate that the terminal has not successfully decoded a received data block, that is, the terminal needs to feed back NACK for one bit to the base station, and "1" may indicate that the terminal has successfully decoded a received data block, that is, the terminal needs to feed back ACK for one bit to the base station.

HARQ-ACK of two bits in table 27 and table 28 includes bits with value status of "{ 0, 0 }", "{ 0, 1 }", "{ 1, 1 }" and "{ 1, 0 }", wherein "{ 0, 0 }" may indicate that the terminal did not successfully decode the received data block of two bits, i.e. the terminal needs to feed back (NACK ) to the base station, "{ 0, 1 }" may indicate that the terminal did not successfully decode the received first data block, successfully decode the received data block of the second bit, i.e. the terminal needs to feed back (NACK, ACK) to the base station, "{ 1, 1 }" may indicate that the terminal successfully decodes the received data block of two bits, i.e. the terminal needs to feed back (ACK ) to the base station, "{ 1, 0 }" may indicate that the terminal successfully decodes the received first data block, and unsuccessfully decodes the received data block of the second bit, i.e. the terminal needs to feed back (ACK, NACK) to the base station.

Specifically, based on the above tables 5 to 8, it can be seen that:

the value state "0" of a bit included in the HARQ-ACK of one bit in table 25 and the value state "{ 0, 0 }" of a bit included in the HARQ-ACK of two bits in table 27 both correspond to the cyclic shift bit number 1 of the sequence; the value state "1" of the bit included in the HARQ-ACK of one bit in table 25 and the value state "{ 1, 1 }" of the bit included in the HARQ-ACK of two bits in table 27 both correspond to the cyclic shift bit number 7 of the sequence;

the value state "0" of the bit included in the HARQ-ACK of one bit in table 26 and the value state "{ 1, 0} of the bit included in the HARQ-ACK of two bits in table 27 both correspond to the cyclic shift bit number 10 of the sequence, and the value state" 1 "of the bit included in the HARQ-ACK of one bit in table 26 and the value state" {0, 1} of the bit included in the HARQ-ACK of two bits in table 27 both correspond to the cyclic shift bit number 4 of the sequence.

In this case, the terminal may transmit NACK to the base station using the cyclic shift bit number 1 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 1 of the sequence used by the terminal, specifically, the terminal transmits a (NACK ) according to the HARQ-ACK of two bits based on the table 27, and further determines that the terminal has not successfully received two PDSCHs and has transmitted an SR request. At this time, the base station retransmits two PDSCHs to the terminal, so that the base station can be considered to accurately understand the receiving state of the terminal.

In this case, the terminal may send an ACK to the base station using cyclically shifted number of bits 7 of the sequence. On the base station side, the base station still understands the cyclic shift bit number 7 of the sequence used by the terminal, specifically, the terminal sends an (ACK ) according to the HARQ-ACK of two bits and based on the table 27, and further determines that the terminal successfully receives two PDSCHs and sends an SR request. At this time, since the base station understands that the terminal successfully receives and decodes the two PDSCHs, the base station does not retransmit the PDSCHs to the terminal, and thus, it can be considered that the base station loses the information of missing PDSCH detection by the terminal and does not accurately understand the terminal receiving state.

In this case, the terminal transmits NACK to the base station using the cyclic shift number of bits 10 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 10 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on the table 27, and specifically understands that the terminal transmitted (ACK, NACK), and further determines that the terminal did not successfully receive the second PDSCH and transmitted the SR request. At this time, the base station retransmits the second PDSCH corresponding to the NACK to the terminal, so that the base station can be considered to partially understand the reception state of the terminal.

In this case, the terminal may transmit ACK to the base station using the cyclic shift number of bits 4 of the sequence. On the base station side, the base station still understands the number of cyclic shift bits 4 of the sequence used by the terminal according to the HARQ-ACK of two bits and based on table 27, and specifically understands that the terminal transmitted a (NACK, ACK), and further determines that the terminal did not successfully decode the first PDSCH and transmitted an SR request. At this time, the base station retransmits the first PDSCH corresponding to the NACK to the terminal, so that the base station can be considered to partially understand the reception state of the terminal.

It follows that in the second case, the base station may misinterpret the reception of two PDSCHs by the terminal. Since the second condition is that the terminal needs to send the SR request, and the time for sending the SR request by the terminal is shorter than the time for not sending the SR request by the terminal, compared with the prior art, in this embodiment, the situation that the base station erroneously understands the reception situation of the terminal for two PDSCHs is limited to the situation that the terminal sends the SR request, and the occurrence probability that the base station cannot accurately judge whether the terminal missed detects the PDSCH can be greatly reduced.

It should be further noted that, in the case that the terminal does not miss detection, the terminal may feed back HARQ-ACK (may be one bit or two bits) to the base station according to the actual receiving situation and whether the terminal needs to send the SR request, and based on the mapping relationship in tables 25 to 28, at this time, the base station may determine the receiving state of the terminal and whether the terminal needs to send the SR request based on the cyclic shift bit number of the sequence used by the terminal, and the description is not repeated here.

In the six embodiments, after receiving one or two data blocks sent by the base station, the terminal may select a corresponding target mapping relationship from the first mapping relationship, the second mapping relationship, the third mapping relationship, and the fourth mapping relationship according to the number of bits of the HARQ-ACK that actually need to be fed back and whether it needs to send an SR request to the base station.

For example, if the terminal needs to feed back HARQ-ACK of one bit and needs to send an SR request to the base station, the terminal may select the first mapping relationship as the target mapping relationship; if the terminal needs to feed back HARQ-ACK of two bits and does not need to send an SR request to the base station, the terminal may select the fourth mapping relationship as the target mapping relationship. And will not be described one by one here.

After determining the target mapping relationship, the terminal may execute step 104.

Step 104: and determining the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the value state of the bits included by the HARQ-ACK and the target mapping relation.

In step 104, after determining the target mapping relationship, the terminal may determine the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the value state of the bits included in the HARQ-ACK that need to be fed back and the target mapping relationship.

Specifically, the terminal may determine, according to the actual receiving state, a value state of a bit included in the HARQ-ACK fed back to the base station, for example, if the terminal successfully decodes a received data block, the value state of the bit included in the HARQ-ACK fed back to the base station may be determined to be "1"; if the terminal does not successfully decode the received data block of two bits, it may be determined that the value state of the bits included in the HARQ-ACK fed back to the base station is "{ 0, 0 }".

After determining the value state of the bits included in the HARQ-ACK fed back to the base station, the terminal may determine the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the target mapping relationship.

For example, if the value state of a bit included in the HARQ-ACK fed back by the terminal to the base station is "1" and the target mapping relationship is the first mapping relationship, the terminal may determine that the cyclic shift bit number of the sequence carrying the HARQ-ACK is the cyclic shift bit number of the sequence corresponding to the value state of the bit being "1" in the first mapping relationship.

Based on the six embodiments described in step 102, in practical applications, the terminal can determine which embodiment provides the four mapping relationships according to actual requirements

For example, if the terminal increases the occupied resource of the sequence, the four mapping relationships provided in the first embodiment or the second embodiment may be adopted; if the terminal desires that the base station can accurately determine the receiving state of the terminal and also can determine whether the terminal sends the SR request, the four mapping relationships provided by the fourth embodiment or the fifth embodiment may be used; if the terminal base station can accurately identify whether the terminal sends the SR request, and can reduce resource occupation of the sequence, the four mapping relationships provided in the second embodiment may be used.

After determining which of the four mapping relationships provided in the embodiment is adopted, the terminal may further determine the target mapping relationship and the number of cyclic shift bits of the sequence carrying HARQ-ACK based on the contents described in step 102 and step 104.

According to the technical scheme provided by the embodiment of the invention, the terminal can use the cyclic shift bit number of the corresponding sequence to bear the HARQ-ACK when the terminal carries out HARQ-ACK feedback to the base station by designing the mapping relation between the number of bits included by the HARQ-ACK and whether the SR request is sent or not and the cyclic shift bit number of the sequence bearing the HARQ-ACK. Therefore, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

Fig. 2 is a flowchart illustrating a method for transmitting HARQ-ACK according to an embodiment of the present invention. The method is applied to network equipment and is described as follows.

Step 202: a sequence carrying HARQ-ACK is received.

In step 202, after the base station sends one or two data blocks to the terminal, the terminal may feed back the HARQ-ACK to the base station, and at this time, the base station may receive a sequence carrying the HARQ-ACK fed back by the terminal.

Step 204: and selecting a target mapping relation from the plurality of mapping relations according to the number of bits included in the HARQ-ACK which needs to be reported by the terminal.

In step 204, after receiving the sequence carrying the HARQ-ACK sent by the terminal, the base station may select a target mapping relationship from the multiple mapping relationships according to the number of bits included in the HARQ-ACK that the terminal needs to report.

In this embodiment of the present invention, the plurality of mapping relationships may include a first mapping relationship, a second mapping relationship, a third mapping relationship, and a fourth mapping relationship, where the first mapping relationship, the second mapping relationship, the third mapping relationship, and the fourth mapping relationship are the same as the first mapping relationship, the second mapping relationship, the third mapping relationship, and the fourth mapping relationship described in the embodiment shown in fig. 1, and a description thereof is not repeated here.

When the base station determines the target mapping relationship according to the number of bits included in the HARQ-ACK that the terminal needs to report, specifically, if the number of bits included in the HARQ-ACK that the terminal needs to report is 1, the first mapping relationship and the second mapping relationship may be selected as the target mapping relationship, and if the number of bits included in the HARQ-ACK that the terminal needs to report is 2, the third mapping relationship and the fourth mapping relationship may be selected as the target mapping relationship.

Step 206: and determining the value state of the bits included in the HARQ-ACK and whether the terminal sends an SR request or not according to the cyclic shift bit number of the sequence bearing the HARQ-ACK and the target mapping relation.

In step 206, after determining the target mapping relationship, the base station may determine a value state of a bit included in the HARQ-ACK and whether the terminal sends an SR request according to the cyclic shift bit number of the sequence carrying the HARQ-ACK and the target mapping relationship.

Specifically, after receiving the sequence carrying the HARQ-ACK, the base station may further determine the number of cyclic shift bits of the sequence carrying the HARQ-ACK, and when determining the value state of the bits included in the HARQ-ACK according to the number of cyclic shift bits of the sequence carrying the HARQ-ACK and the target mapping relationship, may match the number of cyclic shift bits of the sequence with the target mapping relationship, and determine the value state of the bits included in the HARQ-ACK according to the matching result.

When determining the value state of the bits included in the HARQ-ACK, the base station may determine whether the terminal has sent the SR request according to the selected target mapping relationship. Specifically, if the target mapping relationship is the first mapping relationship or the third mapping relationship, it is determined that the terminal transmits the SR request, and if the target mapping relationship is the second mapping relationship or the fourth mapping relationship, it is determined that the terminal does not transmit the SR request.

In the embodiment of the present invention, after determining whether the terminal sends the SR request, the base station may further determine a receiving state of the terminal for the data block according to a value state of a bit included in the HARQ-ACK. Specifically, it may refer to the content of the receiving state of the terminal determined by the base station according to the HARQ-ACK fed back by the terminal after the terminal determines the sequence carrying the HARQ-ACK described in the embodiment shown in fig. 1, and the description is not repeated here.

Fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention, where the terminal device includes: a selection module 31 and a determination module 32, wherein:

a selecting module 31, configured to select a target mapping relationship from a plurality of mapping relationships according to the number of bits included in the HARQ-ACK and whether to send the SR request, where the plurality of mapping relationships include: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR (positive SR) request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR (negative SR) request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is not sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

the determining module 32 determines the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the value state of the bits included in the HARQ-ACK and the target mapping relationship.

In a first embodiment of the present invention, the first mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	4	10

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

in a second embodiment of the present invention, the first mapping relationship is:

value of a bitStatus of state	0	1
			Number of cyclically shifted bits of sequence	1	7

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

in a third embodiment of the present invention, the first mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	2	8

(ii) a The second mapping relation is as follows:

bit fetchingValue state	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

in a fourth embodiment of the present invention, the first mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

in a fifth embodiment of the present invention, the first mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

in a sixth embodiment of the present invention, the first mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	10	4

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

the terminal device provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment of fig. 1, and is not described herein again to avoid repetition. The embodiment of the invention designs the mapping relation between the number of the bits included in the HARQ-ACK and whether the SR request is sent or not and the cyclic shift bit number of the sequence bearing the HARQ-ACK, so that the terminal can use the cyclic shift bit number of the corresponding sequence to bear the HARQ-ACK when the terminal feeds back the HARQ-ACK to the base station. Therefore, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

Fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present invention, where the network device includes: a receiving module 41, a selecting module 42 and a determining module 43, wherein:

a receiving module 41, configured to receive a sequence carrying HARQ-ACK;

a selecting module 42, configured to select a target mapping relationship from multiple mapping relationships according to the number of bits included in the HARQ-ACK that needs to be reported by the terminal, where the multiple mapping relationships include: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and no SR request is sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

the determining module 43 determines, according to the cyclic shift bit number of the sequence carrying HARQ-ACK and the target mapping relationship, a value state of a bit included in HARQ-ACK and whether the terminal sends an SR request.

Optionally, the determining module 43 is further configured to determine, according to a value state of a bit included in the HARQ-ACK, a receiving state of the terminal for the data block.

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	4	10

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	1	7

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	2	8

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	3	9

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	0	6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

(ii) a The second mapping relation is as follows:

value state of a bit	0	1
			Number of cyclically shifted bits of sequence	10	4

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

the terminal device provided in the embodiment of the present invention can implement each process implemented by the base station in the method embodiment of fig. 2, and is not described here again to avoid repetition. The embodiment of the invention designs the mapping relation between the number of the bits included in the HARQ-ACK and whether the SR request is sent or not and the cyclic shift bit number of the sequence bearing the HARQ-ACK, so that the terminal can use the cyclic shift bit number of the corresponding sequence to bear the HARQ-ACK when the terminal feeds back the HARQ-ACK to the base station. Therefore, after receiving the cyclic shift bit number of the sequence used by the terminal, the base station can accurately judge whether the terminal has missing detection or sends an SR request based on the cyclic shift bit number, thereby ensuring normal data transmission between the terminal and the base station.

In the embodiment of the present invention, the communication device may include: when the communication device is a terminal device, as shown in fig. 5, fig. 5 is a schematic structural diagram of the terminal device according to an embodiment of the present invention. The mobile terminal 500 shown in fig. 5 includes: at least one processor 501, memory 502, at least one network interface 504, and a user interface 503. The various components in the mobile terminal 500 are coupled together by a bus system 505. It is understood that the bus system 505 is used to enable connection communications between these components. The bus system 505 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 505 in FIG. 5.

The user interface 503 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It is to be understood that the memory 502 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and direct memory bus SDRAM (DRRAM). The memory 502 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 502 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof as follows: an operating system 5021 and application programs 5022.

The operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 5022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. The program for implementing the method according to the embodiment of the present invention may be included in the application program 5022.

In this embodiment of the present invention, the terminal device 500 further includes: a computer program stored on a memory 502 and executable on a processor 501, the computer program when executed by the processor 501 implementing the steps of:

selecting a target mapping relation from a plurality of mapping relations according to the number of bits included in the HARQ-ACK and whether to send the SR request, wherein the plurality of mapping relations comprise: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR (positive SR) request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR (negative SR) request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is not sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The processor 501 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and performs the steps of the above method in combination with the hardware thereof. In particular, the computer readable storage medium has stored thereon a computer program which, when being executed by the processor 501, realizes the steps of the embodiments of the method for transmitting HARQ-ACK as described above.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The terminal device 500 can implement the processes implemented by the mobile terminal in the foregoing embodiments, and in order to avoid repetition, the detailed description is omitted here.

Embodiments of the present invention also propose a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a communication device comprising a plurality of application programs, are capable of causing the communication device to perform the method of the embodiment shown in fig. 1, and in particular for performing the steps of the above-mentioned method for transmitting HARQ-ACKs.

When the communication device is a network device, as shown in fig. 6, fig. 6 is a schematic structural diagram of the network device according to the embodiment of the present invention, and a schematic structural diagram of a physical apparatus of the network device 600 may be as shown in fig. 6, and includes a processor 602, a memory 603, a transmitter 601, and a receiver 604. In particular applications, transmitter 601 and receiver 604 may be coupled to an antenna 605.

The memory 603 stores programs. In particular, the program may include program code comprising computer operating instructions. Memory 603 may include both read-only memory and random access memory, and provides instructions and data to processor 602. The memory 603 may comprise a high-speed RAM memory, and may further comprise a non-volatile memory (e.g., at least 1 disk memory).

The processor 602 executes the program stored in the memory 603.

Specifically, in network device 600, processor 602 may perform the following method:

receiving a sequence carrying HARQ-ACK;

selecting a target mapping relation from a plurality of mapping relations according to the number of bits included in HARQ-ACK (hybrid automatic repeat request-acknowledgement) needing to be reported by a terminal, wherein the plurality of mapping relations comprise: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and no SR request is sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

The method performed by the network device 600 according to the embodiment of the invention shown in fig. 2 may be implemented in the processor 602 or implemented by the processor 602. The processor 602 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 602. The Processor 602 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 603, and the processor 602 reads the information in the memory 603 and performs the steps of the above method in combination with the hardware thereof.

The network device may also execute the method shown in fig. 2 and implement the functions of the network device in the embodiment shown in fig. 2, which is not described herein again in the embodiments of the present invention.

Embodiments of the present invention also provide a computer-readable storage medium storing one or more programs, where the one or more programs include instructions, which, when executed by a communication device including multiple application programs, enable the communication device to perform the method of the embodiment shown in fig. 2, and in particular to perform the steps of the above-mentioned method for transmitting HARQ-ACK.

In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transmyedia) such as modulated data signals and carrier waves.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for transmitting HARQ-ACK is applied to a terminal device, and is characterized by comprising the following steps:

selecting a target mapping relationship from a plurality of mapping relationships according to the number of bits included in the HARQ-ACK and whether to send the SR request, wherein the plurality of mapping relationships comprise at least one of the following: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and no SR request is sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

and determining the number of cyclic shift bits of the sequence carrying the HARQ-ACK according to the target mapping relation.

2. The method of claim 1,

the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 1 7

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 10 4

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

3. The method of claim 1, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 1 7

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 4 10

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

4. The method of claim 1, wherein the first mapping relationship is:

of bitsValue state 0 1 Number of cyclically shifted bits of sequence 1 7

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

5. The method of claim 1, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 2 8

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

6. The method of claim 1, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 3 9

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

7. The method of claim 1,

the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 3 9

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

8. A method for transmitting HARQ-ACK is applied to a network device and is characterized by comprising the following steps:

receiving a sequence carrying HARQ-ACK;

selecting a target mapping relation from a plurality of mapping relations according to the number of bits included in HARQ-ACK (hybrid automatic repeat request-acknowledgement) needing to be reported by a terminal, wherein the plurality of mapping relations comprise at least one of the following mapping relations: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and no SR request is sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

and determining the value state of the bits included in the HARQ-ACK and whether the terminal sends an SR request or not according to the target mapping relation.

9. The method of claim 8, wherein the method further comprises:

and determining the receiving state of the terminal to the data block according to the value state of the bits included in the HARQ-ACK.

10. The method of claim 8,

the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 1 7

(ii) a The second mapping relation is as follows:

bitsValue state of 0 1 Number of cyclically shifted bits of sequence 10 4

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

11. The method of claim 8,

the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 1 7

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 4 10

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

12. The method of claim 8, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 1 7

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

13. The method of claim 8, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 2 8

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

14. The method of claim 8, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 3 9

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

15. The method of claim 8, wherein the first mapping relationship is:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 3 9

(ii) a The second mapping relation is as follows:

value state of a bit 0 1 Number of cyclically shifted bits of sequence 0 6

(ii) a The third mapping relationship is:

(ii) a The fourth mapping relationship is:

。

16. A terminal device, comprising:

a selecting module, configured to select a target mapping relationship from a plurality of mapping relationships according to the number of bits included in the HARQ-ACK and whether to send an SR request, where the plurality of mapping relationships include: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and no SR request is sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

17. A network device, comprising:

the receiving module receives a sequence carrying HARQ-ACK;

a selecting module, configured to select a target mapping relationship from multiple mapping relationships according to the number of bits included in the HARQ-ACK that needs to be reported by the terminal, where the multiple mapping relationships include: a first mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and an SR request is sent and the value state of the bits included in the HARQ-ACK, a second mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 1 and no SR request is sent and the value state of the bits included in the HARQ-ACK, a third mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and an SR request is sent and the value state of the bits included in the HARQ-ACK, and a fourth mapping relation between the number of cyclic shift bits of a sequence carrying HARQ-ACK when the number of bits is 2 and no SR request is sent and the value state of the bits included in the HARQ-ACK, the number of cyclic shift bits included in the first mapping relationship and/or the second mapping relationship is different from the number of cyclic shift bits included in the fourth mapping relationship;

18. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 7.

19. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 8 to 15.

20. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.

21. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 8 to 15.