CN112399434A

CN112399434A - Indication method, repeated transmission control method and related equipment

Info

Publication number: CN112399434A
Application number: CN201910748707.3A
Authority: CN
Inventors: 夏亮; 徐晓东; 张轶
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2021-02-23

Abstract

The invention provides an indication method, a repeated transmission control method and related equipment, and relates to the technical field of communication, wherein the indication method comprises the following steps: receiving a physical channel for repeated transmission, wherein the repeated transmission times of the physical channel is M, and M is an integer greater than or equal to 2; and sending indication information, wherein the indication information is used for indicating whether the physical channel is correctly demodulated according to the previous N times of repeated transmission, and N is a positive integer less than or equal to M. In the embodiment of the invention, the receiving end equipment can indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmission through the indication information, so that the sending end equipment can distinguish the times of correctly demodulating the physical channel by the receiving end equipment, and further can reasonably adjust the subsequent times of repeated transmission of the physical channel based on the fed-back times, thereby achieving the purpose of saving physical transmission resources.

Description

Indication method, repeated transmission control method and related equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an indication method, a retransmission control method, and a related device.

Background

In the prior art, in order to improve the Channel coverage or the communication distance, a manner of repeatedly transmitting a Physical Channel (e.g., a Physical Downlink Shared Channel (PDSCH), a Physical Uplink Shared Channel (PUSCH), a Physical bypass Shared Channel (psch), etc.) may be adopted, and for the number of times of repeated transmission, the number of times of repeated transmission is usually determined in a semi-static manner (the number of times of repeated transmission is adjusted at intervals), and sometimes is even fixed, even when the sending end of the Physical Channel lacks accurate Channel State Information (CSI).

Therefore, on one hand, when the physical channel is correctly received by the target receiving end, if semi-static configuration or predefined repetition times are still adopted in subsequent sending, the waste of physical resources is caused; on the other hand, in the existing physical channel Repeat transmission scheme, the target receiving end may perform feedback of Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) for the repeatedly transmitted physical channel, and if the target receiving end feeds back ACK, the transmitting end cannot distinguish that the target receiving end correctly demodulates the physical channel based on combining several times, so that the number of times of Repeat transmission of the subsequent physical channel cannot be adjusted.

Therefore, in the existing retransmission scheme, the sending end cannot distinguish the number of times that the target receiving end correctly demodulates the physical channel, so that the retransmission number of the subsequent physical channel is difficult to reasonably adjust, and further the waste of physical resources is easily caused.

Disclosure of Invention

The embodiment of the invention provides an indication method, a repeated transmission control method and related equipment, and aims to solve the problems that a sending end cannot distinguish the times of a target receiving end for correctly demodulating a physical channel in the existing repeated transmission scheme, so that the repeated transmission times of subsequent physical channels are difficult to reasonably adjust, and further physical resources are easily wasted.

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

in a first aspect, an embodiment of the present invention provides an indication method, used for receiving end equipment, where the indication method includes:

receiving a physical channel for repeated transmission, wherein the repeated transmission times of the physical channel is M, and M is an integer greater than or equal to 2;

and sending indication information, wherein the indication information is used for indicating whether the physical channel is correctly demodulated according to the previous N times of repeated transmission, and N is a positive integer less than or equal to M.

Optionally, the indicating method further includes:

determining a target value for said N;

the target value of N is related to at least one of the following parameters:

the number P of repeated transmission which is determined in the previous repeated transmission process and can correctly demodulate the physical channel;

the number Q of repeated transmission times which is determined in the previous repeated transmission process and can not correctly demodulate the physical channel;

a target value of N determined in a previous repeat transmission process;

the channel quality parameters determined during the previous repeat transmission.

Optionally, the indication information is further configured to indicate that the physical channel is correctly demodulated according to the first N + i times of repeated transmission, where i is an integer greater than or equal to 1.

Optionally, the repeatedly transmitted physical channel satisfies at least one of the following conditions:

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, the sending the indication information specifically includes:

transmitting the indication information by using a transmission resource corresponding to the value of N;

or

Transmitting the indication information by using the corresponding transmission position of the N value in the field;

or

The indication information comprises a value N or a candidate value index of the value N;

or

The indication information includes a value N or a candidate value index of the value N, and HARQ-ACK bits.

Optionally, when the receiving end device and the sending end device are both user equipment UE, the method further includes:

and reporting the indication information to a base station.

In a second aspect, an embodiment of the present invention provides another indication method, where the indication method is used for a sending end device, and the indication method includes:

repeatedly transmitting a physical channel to receiving end equipment, wherein the repeated transmission times of the physical channel is M, and M is an integer greater than or equal to 2;

receiving indication information sent by the receiving end equipment, wherein the indication information indicates whether the physical channel is correctly demodulated according to the previous N times of repeated transmission, and N is a positive integer less than or equal to M.

Optionally, the indication information further indicates that the physical channel is correctly demodulated according to the previous N + i times of repeated transmission, where i is an integer greater than or equal to 1.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, after receiving the indication information sent by the receiving end device, the indication method further includes:

determining the value of the N according to the transmission resource of the indication information;

or

Determining the value of the N according to the transmission bit position information of the indication information;

or

And determining the value of the N according to the candidate value index in the indication information.

Optionally, when both the sending end device and the receiving end device are user equipment UE, the indicating method further includes:

and reporting the indication information to a base station.

In a third aspect, an embodiment of the present invention provides a method for controlling retransmission, where the method is used for a sending end device, and the method for controlling retransmission includes:

receiving indication information sent by the receiving end equipment;

and if the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmission, rejecting to adjust the number of repeated transmission to a value less than or equal to N, or if the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmission, allowing to adjust the number of repeated transmission to a value greater than or equal to N.

Optionally, after receiving the indication information sent by the receiving end device, the method for controlling repeated transmission further includes:

under the condition that the indication information indicates that the physical channel is correctly demodulated according to the previous N times of repeated transmission, judging whether the repeated transmission still has a non-transmission part;

and when the part which is not transmitted still exists in the repeated transmission, abandoning the part which is not transmitted.

After receiving the indication information sent by the receiving end device, the repeated transmission control method further includes:

and the indication information also indicates that the physical channel is correctly demodulated according to the previous N + i repeated transmissions, and the repeated transmission times are adjusted to be N + i, wherein i is an integer greater than or equal to 1.

In a fourth aspect, an embodiment of the present invention provides a receiving end device, including:

a receiving module, configured to receive a physical channel for repeated transmission, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

a sending module, configured to send indication information, where the indication information is used to indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, and N is a positive integer less than or equal to M.

Optionally, the receiving end device further includes:

a determination module for determining a target value for said N;

the target value of N is related to at least one of the following parameters:

a target value of N determined in a previous repeat transmission process;

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, the sending module is specifically configured to:

or

Optionally, when the receiving end device and the sending end device are both user equipment UE, the receiving end device further includes:

and the reporting module is used for reporting the indication information to a base station.

In a fifth aspect, an embodiment of the present invention provides a sending-end device, including:

a transmission module, configured to repeatedly transmit a physical channel to a receiving end device, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

a receiving module, configured to receive indication information sent by the receiving end device, where the indication information indicates whether the physical channel is correctly demodulated according to previous N times of repeated transmission, where N is a positive integer less than or equal to M.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, the sending end device further includes:

a first determining module, configured to determine a value of the N according to a transmission resource of the indication information;

or

A second determining module, configured to determine a value of the N according to transmission bit position information of the indication information;

or

And the third determining module is used for determining the value of the N according to the candidate value index in the indication information.

Optionally, when the receiving end device and the sending end device are both user equipment UE, the sending end device further includes:

In a sixth aspect, an embodiment of the present invention provides a sending-end device, including:

the receiving module is used for receiving the indication information sent by the receiving end equipment;

a control module, configured to refuse to adjust the number of repeated transmissions to a value smaller than or equal to N when the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmissions, or allow to adjust the number of repeated transmissions to a value larger than or equal to N when the indication information indicates that the physical channel is correctly demodulated according to the previous N times of repeated transmissions.

Optionally, the sending end device further includes:

a judging module, configured to judge whether there is an untransmitted portion in the current retransmission when the indication information indicates that the physical channel is correctly demodulated according to the previous N times of retransmission;

and the abandoning module is used for abandoning the part which is not transmitted under the condition that the part which is not transmitted still exists in the repeated transmission.

Optionally, the sending end device further includes:

and the adjusting module is used for indicating that the physical channel is correctly demodulated according to the previous N + i times of repeated transmission in the indication information, and adjusting the repeated transmission times to be N + i, wherein i is an integer greater than or equal to 1.

In a seventh aspect, an embodiment of the present invention provides a receiving-end device, including a transceiver and a processor,

the transceiver is used for receiving a physical channel for repeated transmission, the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

the transceiver is further configured to send indication information, where the indication information is used to indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, and N is a positive integer less than or equal to M.

Optionally, the processor is configured to determine a target value of N;

the target value of N is related to at least one of the following parameters:

a target value of N determined in a previous repeat transmission process;

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, the transceiver is further configured to transmit the indication information by using a transmission resource corresponding to the value of N;

or

Optionally, when the receiving end device and the sending end device are both user equipment UE, the transceiver is further configured to report the indication information to a base station.

In an eighth aspect, an embodiment of the present invention provides a sending-end device, including a transceiver and a processor,

the transceiver is used for repeatedly transmitting a physical channel to receiving end equipment, the repeated transmission frequency of the physical channel is M, and M is an integer greater than or equal to 2;

the transceiver is further configured to receive indication information sent by the receiving end device, where the indication information indicates whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, and N is a positive integer smaller than or equal to M.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, the processor is configured to determine a value of the N according to the transmission resource of the indication information;

or

Optionally, when both the sending end device and the receiving end device are user equipment UE, the transceiver is further configured to report the indication information to a base station.

In a ninth aspect, an embodiment of the present invention provides a sending-end device, including a transceiver and a processor,

the transceiver is further configured to receive indication information sent by the receiving end device;

the processor is configured to refuse to adjust the number of iterative transmissions to a value less than or equal to N if the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N iterative transmissions, or allow to adjust the number of iterative transmissions to a value greater than or equal to N if the indication information indicates that the physical channel is correctly demodulated according to the previous N iterative transmissions.

Optionally, the processor is further configured to determine whether there is an untransmitted portion in the current retransmission when the indication information indicates that the physical channel is correctly demodulated according to the previous N times of retransmission;

Optionally, the processor is further configured to indicate, in the indication information, to correctly demodulate the physical channel according to the previous N + i times of repeated transmission, and adjust the number of times of repeated transmission to be N + i, where i is an integer greater than or equal to 1.

In a tenth aspect, an embodiment of the present invention provides a receiving end device, including: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the indicating method of the first aspect.

In an eleventh aspect, an embodiment of the present invention provides a sending-end device, including: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the indicating method of the second aspect; or the program when executed by the processor implements the steps of the repeat transmission control method of the third aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the indication method according to the first aspect; or the computer program, when executed by a processor, performs the steps of the method of indicating of the second aspect; or the computer program when executed by a processor implements the steps of the repeat transmission control method of the third aspect described above.

In the embodiment of the invention, after receiving the physical channel repeatedly transmitted by the sending end equipment, the receiving end equipment can feed back the indication information to the sending end equipment so as to indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmission through the indication information, so that the sending end equipment can distinguish the times of correctly demodulating the physical channel by the receiving end equipment, and further can reasonably adjust the subsequent times of repeated transmission of the physical channel based on the fed back times, thereby achieving the purpose of saving physical transmission resources.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart of an indicating method according to an embodiment of the present invention;

FIG. 2 is a flow chart of another indication method provided by the embodiment of the invention;

fig. 3 is a flowchart of a retransmission control method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a receiving end device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another receiving end device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sending-end device according to an embodiment of the present invention;

fig. 7a is a schematic structural diagram of another sending-end device according to an embodiment of the present invention;

fig. 7b is a schematic structural diagram of another sending-end device according to an embodiment of the present invention;

fig. 7c is a schematic structural diagram of another sending-end device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another sending-end device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another sending-end device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another sending-end device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another receiving end device according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another sending-end 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 embodiment of the invention, an indication method, a repeated transmission control method and related equipment are provided to solve the problem that a sending end in the existing repeated transmission scheme cannot distinguish the times of correctly demodulating a physical channel by a target receiving end, so that the repeated transmission times of subsequent physical channels are difficult to reasonably adjust, and further physical resources are easily wasted.

Referring to fig. 1, fig. 1 is a flowchart of an indicating method provided in an embodiment of the present invention, for a receiving end device, as shown in fig. 1, the method includes the following steps:

step 101, receiving a physical channel for repeated transmission, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2.

In this embodiment of the present invention, the receiving end device may be a base station or a User Equipment (UE), and correspondingly, the sending end device may also be a base station or a UE.

The Physical Channel may be a Physical Downlink Shared Channel (PDSCH), a Physical Uplink Shared Channel (PUSCH), a Physical bypass Shared Channel (psch), a Physical Downlink Control Channel (PDCCH), a Physical Uplink Control Channel (PUCCH), a Physical bypass Control Channel (PSCCH), a Physical bypass Feedback Channel (psfcch), or the like.

Specifically, when the sending end device is a base station and the receiving end device is a UE, the physical channel may include a PDSCH and a PDCCH; when the sending end device is the UE and the receiving end device is also the UE, the physical channel may include a PSCCH and a PSCCH; when the sending end device is a UE and the receiving end device is also a base station, the physical channel may include a PUSCH and a PUCCH; when the sending end device is a base station and the receiving end device is also a base station, the physical channel may include a physical channel for communication between the base stations.

In the process of data transmission between the sending end device and the receiving end device, the sending end device may repeatedly transmit the physical channel carrying the same information to the receiving end device in a repeated transmission manner, so as to ensure the transmission quality. Therefore, the receiving end device may receive a physical channel for repeated transmission, where the number of times of repeated transmission of the physical channel is M, where M is an integer greater than or equal to 2, that is, the physical channel is repeatedly transmitted at least 2 times, where a value of M may be preconfigured by the sending end device or adjusted according to feedback of the receiving end device. The value of M may be sent by the sending end device to the receiving end device.

And 102, sending indication information, wherein the indication information is used for indicating whether the physical channel is correctly demodulated according to the previous N times of repeated transmission, and N is a positive integer less than or equal to M.

In this embodiment of the present invention, after receiving a physical channel of a repeated transmission, the receiving end device may demodulate the physical channel to obtain information in the physical channel, and may feed back a demodulation condition of the repeated transmission to the sending end device, that is, send indication information to the sending end device, where the indication information may include correctly demodulating the physical channel according to the previous N times of repeated transmission or incorrectly demodulating the physical channel according to the previous N times of repeated transmission, that is, the indication information may be used to indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmission.

The N may be randomly selected by a receiving end device or determined based on a related parameter, or determined according to a minimum repetition number capable of correctly demodulating the physical channel, or determined according to a maximum repetition number incapable of correctly demodulating the physical channel, and the N is a positive integer less than or equal to M. The candidate value for N may be a set of values including at least one value less than or equal to M. For example, M is 8, and the candidate value of the number of repeated transmissions may be {1,2,4,8 }. The subsequent adjusted number of repeated transmissions may belong to the set of candidate values for the number of repeated transmissions.

Here, it should be understood that, in the method according to the embodiment of the present invention, if N is determined by the receiving end device according to the minimum number of repetitions capable of correctly demodulating the physical channel or according to the maximum number of repetitions that the physical channel cannot be correctly demodulated, the receiving end device needs to perform exhaustive decoding on all physical channels repeatedly transmitted for the previous N times, so as to determine according to the minimum number of repetitions capable of correctly demodulating the physical channel or determine according to the maximum number of repetitions that the physical channel cannot be correctly demodulated, and therefore, with the method according to the embodiment, the necessary number of repetitions or the unnecessary number of repetitions required for the current repetition transmission can be fed back more accurately, and the sending end device can be further guided to adjust the subsequent number of repetitions. In the method of the embodiment of the present invention, the candidate value of N may be a value set including at least one value less than or equal to M, which may effectively reduce the number of exhaustive decoding times of the physical channel repeatedly transmitted last N times by the receiving end device, that is, the receiving end device only needs to decode the physical channel repeatedly transmitted last N times corresponding to the candidate value of N, thereby reducing the power consumption of the terminal and the time delay for sending the indication information. In the method of the embodiment of the present invention, if N is randomly selected by the receiving end device or determined based on the relevant parameters, the receiving end device determines an N value first, and then performs decoding of the previous N times of retransmission to see whether the physical channel can be correctly demodulated, without performing exhaustive decoding on all the physical channels of the previous N times of retransmission. Therefore, the method of the embodiment of the invention can reduce the power consumption of the terminal and the time delay of sending the indication information.

The above correctly demodulating the physical channel may be a Cyclic Redundancy Check (CRC) Check passing of the physical channel.

Specifically, the receiving end device may determine a value of N to be indicated or a candidate value of N, determine whether a physical channel of the previous N times of received retransmission is correctly demodulated, and send a result of the determination and the value of N to the sending end device through indication information, where if the physical channel of the previous N times of retransmission is correctly demodulated, it is determined that the physical channel can be correctly demodulated according to the previous N times of retransmission, and if the physical channel of the previous N times of retransmission is not correctly demodulated, it is determined that the physical channel cannot be correctly demodulated according to the previous N times of retransmission.

It should be noted that the receiving end device may send the indication information through Hybrid Automatic Repeat request acknowledgement (HARQ-ACK), and based on whether the receiving end device correctly demodulates the physical channel or incorrectly demodulates the physical channel according to the previous N times of repeated transmission, the indication information may adopt two different forms for feedback, that is, the HARQ-ACK may include ACK _ N or NACK _ N, the ACK _ N may be used to indicate that the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission, and the NACK _ N may be used to indicate that the receiving end device fails to correctly demodulate the physical channel according to the previous N times of repeated transmission.

Thus, after receiving the indication information fed back by the receiving end device, the sending end device may determine whether the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission, and then may correspondingly adjust the number of times of repeated transmission of the physical channel according to the N, for example, when receiving ACK _ N, adjust the number of times of repeated transmission of the physical channel for subsequent transmission to be N or N + i, where i is an integer greater than or equal to 1, and N + i is not greater than the number of times of repeated transmission M preconfigured; or, when receiving NACK _ N, adjusting the number of repeated transmissions of the physical channel for subsequent transmission to a value greater than N, i.e., increasing the number of repeated transmissions of the physical channel.

Correspondingly, after feeding back the indication information, the receiving end device may also adjust the number of times of repeated reception of the physical channel according to the N, for example, after feeding back ACK _ N, adjust the number of times of repeated reception of the physical channel to be N or N + i, or after feeding back NACK _ N, increase the number of times of repeated reception of the physical channel, that is, adjust the number of times of repeated reception to be a value greater than N.

Further, the sending end device may determine whether there is still an untransmitted portion in the current retransmission under the condition that the indication information fed back by the receiving end indicates that the physical channel is correctly demodulated according to the previous N times of retransmission, and may discard the untransmitted portion under the condition that there is still an untransmitted portion in the current retransmission, so as to avoid transmitting and receiving an unnecessary retransmission channel.

For example, the number of times of retransmission in the current transmission preconfigured by the sending end device is 4, when receiving the indication information fed back by the receiving end device and indicating that the physical channel has been correctly demodulated according to the previous 2 times of retransmission, it may be determined whether there is a part of physical channels that have not been transmitted currently, and if it is determined that there are 2 parts of physical channels that have not been transmitted, the transmission of the 2 parts of physical channels that have not been transmitted may be stopped, so as to save physical transmission resources.

In one embodiment, before sending the indication information, the receiving end device may determine the target value of N according to a related parameter, that is, the indication method may further include:

determining a target value for said N;

the target value of N is related to at least one of the following parameters:

a target value of N determined in a previous repeat transmission process;

In this embodiment, the receiving end device may determine the target value of N according to the number P of repeated transmissions that are determined in the previous repeated transmission (such as the previous repeated transmission or the previous several repeated transmissions) and that can correctly demodulate the physical channel, specifically, may record the number P of repeated transmissions that can correctly demodulate the physical channel according to the previous repeated transmission, and then determine the target value of N as P or a value slightly larger than P, so as to save physical transmission resources as much as possible while ensuring that the physical channel can be correctly demodulated in the current transmission.

The receiving end device may also determine the target value of N according to the number of retransmission times Q determined in the previous retransmission process that the physical channel cannot be correctly demodulated, specifically, the target value of N may be determined as a value greater than Q after recording the number of retransmission times Q for which the physical channel cannot be correctly demodulated according to the previous retransmission, so as to improve the probability that the physical channel can be correctly demodulated in this retransmission.

The receiving end device may further determine the target value of N in the current transmission according to a target value of N determined in a previous repeated transmission process or a channel quality parameter determined in a previous repeated transmission process, that is, the target value of N in the previous repeated transmission process may be directly used, or a channel quality of the previous repeated transmission, such as a Signal to Interference plus Noise Ratio (SINR), a Signal-to-Noise Ratio (SNR), obtained by measuring a Demodulation Reference Signal (DMRS) in the previous repeated transmission process, is determined according to the channel quality of the previous repeated transmission process, where the target value of N may be higher as the channel quality of the previous repeated transmission is better, the target value of N may be lower as the channel quality of the previous repeated transmission is worse, and the target value of N may be higher as the channel quality of the previous repeated transmission is worse.

The receiving end device may further determine a more suitable target value of N according to a combination of a plurality of the above parameters.

Therefore, the target value of N in the repeated transmission is determined based on the related parameters in the previous repeated transmission, so that the repeated transmission times in the subsequent repeated transmission can be adjusted to be a better value by the mode of continuously and circularly adjusting the value of N, and further, the physical transmission resources can be saved as much as possible.

Optionally, the indication information is further configured to indicate that the physical channel is correctly demodulated according to the first N + i times of repeated transmission, where i is an integer greater than or equal to 1. The value of i may also be included in the indication information.

And under the condition that the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmission, feeding back the number of repeated transmission times required for correctly demodulating the physical channel to the sending end equipment more clearly so that the sending end equipment can more accurately adjust the number of repeated transmission times, and further indicating how many times of repeated transmission can be used for correctly demodulating the physical channel according to the indication information, for example, indicating that the physical channel can be correctly demodulated according to the previous N + i times of repeated transmission.

Specifically, after selecting the target value of N, if it is determined that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmission, the receiving end device may further select the value of i, and then determine whether the physical channel of the previous N + i times of repeated transmission can be correctly demodulated, and under the condition that the physical channel of the previous N + i times of repeated transmission can be correctly demodulated, it may be determined that the indication information to be fed back to the sending end includes information that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmission, and information that the physical channel can be correctly demodulated according to the previous N + i times of repeated transmission.

It should be noted that the indication information is further used to indicate that the physical channel can be correctly demodulated according to the first N + i times of repeated transmissions, and may be applicable to the following two cases: one of the two methods is that the receiving end equipment cannot correctly demodulate the physical channel according to the previous N times of repeated transmission, but can correctly demodulate the physical channel according to the previous N +1 times of repeated transmission, and i is equal to 1; secondly, the receiving end device can not correctly demodulate the physical channel according to the previous N times of repeated transmission, can correctly demodulate the physical channel according to the previous N +1 times of repeated transmission, can not correctly demodulate the physical channel according to the previous N +2 times of repeated transmission, and can correctly demodulate the physical channel according to the previous N +3 times of repeated transmission, so that the maximum repeated transmission times capable of correctly demodulating the physical channel, namely N + i times, can be determined, and i is larger than 1.

Therefore, after receiving the indication information, the sending end equipment can adjust the repeated transmission times to be N + i, so that the transmission quality is ensured, and unnecessary repeated transmission times can be avoided.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

The physical channels of the repeated transmission can have the same hybrid automatic repeat request (HARQ) process, that is, one HARQ process comprises a process of repeatedly transmitting the physical channels for multiple times; or, the repeatedly transmitted physical channels may carry the same transport block TB, data, or signaling, that is, the physical channels repeatedly transmitted multiple times all carry the same content, which is to ensure that the receiving end device can correctly demodulate the content in the physical channels; or, the physical channel of the repeated transmission includes M time slots or sub-time slots, that is, the physical channel performs M times of repeated transmission in the M time slots or sub-time slots.

Optionally, the sending the indication information specifically includes:

or

In this embodiment, the indication information may have a plurality of different transmission manners, that is, the value of N may be indicated by a plurality of different indication manners.

In the first manner, the receiving end device may use configured, preconfigured, or predefined physical resources to carry the indication information, such as ACK _ N, that is, the receiving end device may transmit the indication information by using transmission resources corresponding to the value of N, so that the sending end device may determine the corresponding value of N according to the transmission resources of the indication information, and further determine that the receiving end device can correctly demodulate the physical channel according to the previous N times of repeated transmission; the physical resources or transmission resources may include time domain, frequency domain, code domain, or space domain resources, and the physical resources or transmission resources may be distinguished by time domain resource numbers, frequency domain resource numbers, code domain resource numbers, or antenna port numbers. The physical resource or transmission resource may be a candidate physical resource or transmission resource of a physical uplink control channel (PUSCH), a Physical Uplink Shared Channel (PUSCH), a physical downlink control channel (PDSCH), a Physical Downlink Shared Channel (PDSCH), a physical bypass control channel (PSCCH), a physical bypass feedback channel (PSFCH), and a physical bypass shared channel (PSCCH) that carry the indication information.

In a second manner, the receiving end device may use configured, preconfigured, or predefined bits to represent the indication information, such as ACK _ N, and determine the value of N according to the position of a bit with a value of 1 in the indication field, where if each bit in the indication field is 0, it indicates that the physical channel cannot be demodulated correctly. That is to say, the receiving end device may transmit the indication information at the transmission position corresponding to the value N in the field, so that the sending end device may determine the value of N according to the transmission bit position information of the indication information, and for example, may determine that the value of N is 3 or determine that the value of N is a candidate value of the 3 rd N according to the received 3 rd bit in the indication field being 1.

For example, the number of bits carrying HARQ-ACK is M, where the nth bit corresponds to ACK _ N, and if the nth bit is 1, it indicates that the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission; if the Nth bit is 0, the receiving end is indicated to incorrectly demodulate the physical channel according to the previous N times of repeated transmission; and if the M bits are all 0, the NACK is represented, and the NACK is used for indicating that the receiving end equipment does not correctly demodulate the physical channel according to the previous M repeated transmissions.

Take HARQ-ACK information containing 4 bits as an example, wherein, 1000: indicating correct demodulation according to the previous 1 physical channels (corresponding to ACK _1), 0100: indicating that the physical channel can be correctly demodulated according to the previous 2 times (corresponding to ACK _2), 0010: indicating that the physical channel can be correctly demodulated according to the previous 3 times (corresponding to ACK _3), 0001: indicating that the physical channel can be correctly demodulated according to the previous 4 times (corresponding to ACK _4), 0000: indicating that none of the physical channels of the previous 4 retransmissions were correctly demodulated (corresponding to NACK).

In a third way, the receiving end device may use configured, preconfigured or predefined HARQ-ACK status to indicate the indication information, such as ACK _ N, specifically, the number of bits carrying HARQ-ACK is ceil (log2(M '+ 1)), which includes M' +1 HARQ-ACK statuses, corresponding to M 'ACK _ N and 1 NACK, respectively, where M' ≦ M; further, to reduce the number of bits of HARQ-ACK, the indicated candidate for ACK _ N may be reduced, e.g., M' < M, HARQ-ACK information includes 2 bits, where 00: indicating that the physical channel is not correctly demodulated (corresponding to NACK), 01: indicating that the physical channel can be correctly demodulated according to the previous 1 times (corresponding to ACK _1), 10: indicating that the physical channel can be correctly demodulated according to the previous 2 times (corresponding to ACK _2), 11: indicating that the physical channel can be correctly demodulated (corresponding to ACK _4) according to the previous 4 times, that is, in order to save resources for transmitting the indication information, ACK _3 may not indicate.

In a fourth manner, the indication information may include a value N or a candidate index of the value N, or the indication information includes the value N or the candidate index of the value N and a HARQ-ACK bit, and the sending end device may determine the value of N according to the value or the candidate index in the indication information. For example, the indication information may include 2 HARQ-ACK bits, and the 2 HARQ-ACK bits are 10, corresponding to a value 2 or a candidate value index 2, so that the sending end device may determine that the value of N is 2, or the N is 2 nd in the candidate value set, indicating that the physical channel can be correctly demodulated according to the previous 2 times (corresponding to ACK _ 2); these 2 HARQ-ACK bits are 00, indicating that the physical channel is not demodulated correctly (corresponding to NACK). For another example, the indication information may include 3 HARQ-ACK bits, and the first 2 HARQ-ACK bits are 10, which correspond to a value 2 or a candidate index 2, so that the sending end device may determine that the value of N is 2, or N is the 2 nd HARQ-ACK bit in the candidate set, and the last 1 HARQ-ACK bit is 1, which indicates that the physical channel can be correctly demodulated according to the first 2 times (corresponding to ACK _ 2).

Therefore, the indication information is fed back to the sending end equipment in the above mode, which is not only beneficial to saving transmission resources, but also can ensure that the sending end equipment can quickly analyze the value of the N and clearly define the specific meaning represented by the indication information.

and reporting the indication information to a base station.

It should be further noted that, if the sending end device and the receiving end device are both UE, the sending end device and/or the receiving end device may report HARQ-ACK information, such as ACK _ N or NACK, to the base station to assist the base station in determining channel quality between the sending end device and the receiving end device, so as to perform more optimized physical channel resource allocation and/or physical channel transmission scheme configuration.

It should be further noted that the indication information may be carried using a physical uplink control channel (PUSCH), a Physical Uplink Shared Channel (PUSCH), a physical downlink control channel (PDSCH), a Physical Downlink Shared Channel (PDSCH), a physical bypass control channel (PSCCH), a physical bypass feedback channel (PSFCH), and a physical bypass shared channel (PSCCH).

In the indicating method in this embodiment, after receiving the physical channel repeatedly transmitted by the sending end device, the receiving end device may feed back the indicating information to the sending end device, so as to indicate whether to correctly demodulate the physical channel according to the previous N times of repeated transmission through the indicating information, so that the sending end device can distinguish the times of correctly demodulating the physical channel by the receiving end device, and further can reasonably adjust the subsequent times of repeated transmission of the physical channel based on the times of feedback, thereby achieving the purpose of saving physical transmission resources.

Referring to fig. 2, fig. 2 is a flowchart of another indication method provided in an embodiment of the present invention, where the method is used for a sending end device, and as shown in fig. 2, the method includes the following steps:

step 201, repeatedly transmitting a physical channel to a receiving end device, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2.

Step 202, receiving indication information sent by the receiving end device, where the indication information indicates whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, where N is a positive integer less than or equal to M.

It should be noted that, this embodiment is used as an implementation of the sending-end device corresponding to the embodiment shown in fig. 1, and specific implementation of this embodiment may refer to relevant descriptions in the embodiment shown in fig. 1, and in order to avoid repeated descriptions, this embodiment is not described again.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, after the step 202, the method further includes:

or

and reporting the indication information to a base station.

The above optional implementation manner may refer to the relevant description in the embodiment shown in fig. 1, and in order to avoid repeated description, the embodiment is not described again.

In the indicating method in this embodiment, after receiving the physical channel repeatedly transmitted by the sending end device, the receiving end device may feed back the indicating information to the sending end device, so that the sending end device may determine whether the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission through the indicating information, and thus, the sending end device may distinguish the number of times that the receiving end device correctly demodulates the physical channel, and further, may reasonably adjust the number of times of subsequent repeated transmission of the physical channel based on the number of times that is fed back, thereby achieving the purpose of saving physical transmission resources.

Referring to fig. 3, fig. 3 is a flowchart of a retransmission control method provided in an embodiment of the present invention, for a sending end device, and as shown in fig. 3, the method includes the following steps:

step 301, repeatedly transmitting a physical channel to a receiving end device, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2.

Step 302, receiving the indication information sent by the receiving end device.

Step 303, refusing to adjust the number of repeated transmissions to a value less than or equal to N when the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmissions, or allowing to adjust the number of repeated transmissions to a value greater than or equal to N when the indication information indicates that the physical channel is correctly demodulated according to the previous N times of repeated transmissions.

Optionally, after the step 302, the method further includes:

In the repeated transmission control method in this embodiment, after receiving the physical channel that is repeatedly transmitted by the sending end device, the receiving end device may feed back the indication information to the sending end device, so that the sending end device may determine, through the indication information, whether the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission, and then the sending end device may reasonably adjust the number of times of subsequent repeated transmission of the physical channel based on the indication information, thereby achieving the purpose of saving physical transmission resources.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a receiving end device according to an embodiment of the present invention, and as shown in fig. 4, the receiving end device 400 includes:

a receiving module 401, configured to receive a physical channel for repeated transmission, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

a sending module 402, configured to send indication information, where the indication information is used to indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, where N is a positive integer less than or equal to M.

Optionally, as shown in fig. 5, the receiving-end device 400 further includes:

a determining module 403, configured to determine a target value of the N;

the target value of N is related to at least one of the following parameters:

a target value of N determined in a previous repeat transmission process;

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, the sending module 402 is specifically configured to:

or

Optionally, when the receiving end device 400 and the sending end device are both the user equipment UE, the receiving end device 400 further includes:

The receiving end device 400 can implement each process implemented by the receiving end device in the method embodiment shown in fig. 1, and is not described herein again to avoid repetition. After receiving the physical channel repeatedly transmitted by the sending end device, the receiving end device 400 may feed back indication information to the sending end device to indicate whether to correctly demodulate the physical channel according to the previous N times of repeated transmission through the indication information, so that the sending end device can distinguish the times of correctly demodulating the physical channel by the receiving end device 400, and further can reasonably adjust the subsequent times of repeated transmission of the physical channel based on the fed back times, thereby achieving the purpose of saving physical transmission resources.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a sending end device according to an embodiment of the present invention, and as shown in fig. 6, the sending end device 600 includes:

a transmission module 601, configured to repeatedly transmit a physical channel to a receiving end device, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

a receiving module 602, configured to receive indication information sent by the receiving end device, where the indication information indicates whether the physical channel is correctly demodulated according to previous N times of repeated transmission, where N is a positive integer smaller than or equal to M.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Optionally, as shown in fig. 7a, 7b and 7c, the sending-end device 600 further includes:

a first determining module 603, configured to determine a value of the N according to a transmission resource of the indication information;

or

A second determining module 604, configured to determine a value of the N according to transmission bit position information of the indication information;

or

A third determining module 605, configured to determine the value of N according to the candidate value index in the indication information.

Optionally, when the sending end device 600 and the receiving end device are both user equipment UE, the sending end device 600 further includes:

The sending-end device 600 can implement each process implemented by the sending-end device in the method embodiment shown in fig. 2, and is not described here again to avoid repetition. After receiving the physical channel repeatedly transmitted by the sending end device 600, the receiving end device may feed back the indication information to the sending end device 600, so that the sending end device 600 may determine whether the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission through the indication information, and thus, the sending end device 600 may distinguish the number of times that the receiving end device correctly demodulates the physical channel, and further, may reasonably adjust the number of times of subsequent repeated transmission of the physical channel based on the number of times that is fed back, thereby achieving the purpose of saving physical transmission resources.

Referring to fig. 8, fig. 8 is a schematic structural diagram of another sending end device according to an embodiment of the present invention, and as shown in fig. 8, a sending end device 800 includes:

a transmission module 801, configured to repeatedly transmit a physical channel to a receiving end device, where a number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

a receiving module 802, configured to receive indication information sent by the receiving end device;

a control module 803, configured to refuse to adjust the number of repeated transmissions to a value smaller than or equal to N if the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmissions, or allow to adjust the number of repeated transmissions to a value larger than or equal to N if the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N times of repeated transmissions.

Optionally, as shown in fig. 9, the sending-end device 800 further includes:

a determining module 804, configured to determine whether there is an untransmitted portion in the current retransmission when the indication information indicates that the physical channel is correctly demodulated according to the previous N times of retransmission;

and a discarding module 805, configured to discard the untransmitted portion if there is still an untransmitted portion in the current repeated transmission.

Optionally, as shown in fig. 10, the sending-end device 800 further includes:

an adjusting module 806, configured to further indicate, in the indication information, to correctly demodulate the physical channel according to the previous N + i times of repeated transmission, and adjust the number of times of repeated transmission to be N + i, where i is an integer greater than or equal to 1.

The sending-end device 800 can implement each process implemented by the sending-end device in the method embodiment shown in fig. 3, and is not described herein again to avoid repetition. After receiving the physical channel repeatedly transmitted by the sending end device 800, the receiving end device may feed back the indication information to the sending end device 800, so that the sending end device 800 may determine, through the indication information, whether the receiving end device correctly demodulates the physical channel according to the previous N times of repeated transmission, and then the sending end device 800 may reasonably adjust the number of times of subsequent repeated transmission of the physical channel based on the indication information, thereby achieving the purpose of saving physical transmission resources.

An embodiment of the present invention further provides a receiving end device, including: the processor, the memory and the program stored in the memory and capable of running on the processor, wherein the program, when executed by the processor, implements the processes of the above-mentioned indication method embodiment, and can achieve the same technical effects, and are not described herein again to avoid repetition.

Specifically, referring to fig. 11, an embodiment of the present invention further provides a receiving end device, which includes a bus 1101, a transceiver 1102, an antenna 1103, a bus interface 1104, a processor 1105, and a memory 1106.

A transceiver 1102, configured to receive a physical channel for repeated transmission, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

the transceiver 1102 is further configured to send indication information, where the indication information is used to indicate whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, and N is a positive integer smaller than or equal to M.

Further, a processor 1105 for determining a target value for said N;

the target value of N is related to at least one of the following parameters:

a target value of N determined in a previous repeat transmission process;

Further, the indication information is further used to indicate that the physical channel is correctly demodulated according to the first N + i times of repeated transmission, where i is an integer greater than or equal to 1.

Further, the repeatedly transmitted physical channel satisfies at least one of the following conditions:

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Further, the transceiver 1102 is further configured to transmit the indication information by using a transmission resource corresponding to the value of N;

or

Further, when the receiving end device and the sending end device are both user equipment UE, the transceiver 1102 is further configured to report the indication information to the base station.

The receiving end device further includes: a computer program stored on the memory 1106 and executable on the processor 1105. Wherein the computer program when executed by the processor 1105 is operable to:

In fig. 11, a bus architecture (represented by bus 1101), bus 1101 may include any number of interconnecting buses and bridges, bus 1101 linking together various circuits including one or more processors represented by processor 1105 and memory represented by memory 1106. The bus 1101 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 1104 provides an interface between the bus 1101 and the transceiver 1102. The transceiver 1102 may be one element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by processor 1105 is transmitted over a wireless medium via antenna 1103. further, antenna 1103 may receive and transmit data to processor 1105.

Processor 1105 is responsible for managing bus 1101 and the usual processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management and other control functions. And memory 1106 may be used to store data used by processor 1105 in performing operations.

Alternatively, the processor 1105 may be a CPU, ASIC, FPGA, or CPLD.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned indication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

An embodiment of the present invention further provides a sending end device, including: the processor, the memory and the program stored in the memory and capable of running on the processor, wherein the program, when executed by the processor, implements the processes of the above-mentioned indication method embodiment, and can achieve the same technical effects, and are not described herein again to avoid repetition.

Specifically, referring to fig. 12, an embodiment of the present invention further provides a sending-end device, which includes a bus 1201, a transceiver 1202, an antenna 1203, a bus interface 1204, a processor 1205, and a memory 1206.

In one embodiment, the transceiver 1202 is configured to repeatedly transmit a physical channel to a receiving device, where the number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

the transceiver 1202 is further configured to receive indication information sent by the receiving end device, where the indication information indicates whether the physical channel is correctly demodulated according to the previous N times of repeated transmissions, and N is a positive integer smaller than or equal to M.

Further, the indication information further indicates that the physical channel is correctly demodulated according to the first N + i times of repeated transmission, where i is an integer greater than or equal to 1.

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

Further, the processor 1205 is configured to determine a value of the N according to the transmission resource of the indication information;

or

Further, when the sending end device and the receiving end device are both user equipment UE, the transceiver 1202 is further configured to report the indication information to a base station.

In this embodiment, the sending end device further includes: a computer program stored on the memory 1206 and executable on the processor 1205. Wherein the computer program when executed by the processor 1205 is operable to perform the steps of:

In another embodiment, the transceiver 1202 is configured to repeatedly transmit a physical channel to a receiving end device, where a number of times of repeated transmission of the physical channel is M, and M is an integer greater than or equal to 2;

the transceiver 1202 is further configured to receive indication information sent by the receiving end device;

a processor 1205 for denying the adjustment of the number of repeated transmissions to a value less than or equal to N if the indication information indicates that the physical channel cannot be correctly demodulated according to the previous N repeated transmissions, or allowing the adjustment of the number of repeated transmissions to a value greater than or equal to N if the indication information indicates that the physical channel can be correctly demodulated according to the previous N repeated transmissions.

Further, the processor 1205 is further configured to determine whether there is an untransmitted portion in the current retransmission if the indication information indicates that the physical channel is correctly demodulated according to the previous N times of retransmission;

Further, the processor 1205 is further configured to further indicate, in the indication information, to correctly demodulate the physical channel according to the previous N + i times of repeated transmissions, and adjust the number of repeated transmissions to be N + i, where i is an integer greater than or equal to 1.

receiving indication information sent by the receiving end equipment;

In fig. 12, a bus architecture (represented by the bus 1201), the bus 1201 may include any number of interconnected buses and bridges, and the bus 1201 links together various circuits including one or more processors, represented by the processor 1205, and memory, represented by the memory 1106. The bus 1201 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 1104 provides an interface between the bus 1201 and the transceiver 1202. The transceiver 1202 may be one element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by the processor 1205 is transmitted over a wireless medium via the antenna 1203, and further, the antenna 1203 receives the data and transmits the data to the processor 1205.

The processor 1205 is responsible for managing the bus 1201 and normal processing, and may provide a variety of functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 1206 may be used for storing data used by processor 1205 in performing operations.

Alternatively, the processor 1205 may be a CPU, ASIC, FPGA, or CPLD.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing repeated transmission control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk.

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. An indication method used for a receiving end device, the indication method comprising:

2. The indication method according to claim 1, further comprising:

determining a target value for said N;

the target value of N is related to at least one of the following parameters:

a target value of N determined in a previous repeat transmission process;

3. The indication method according to claim 1, wherein the indication information is further used for indicating that the physical channel is correctly demodulated according to the first N + i times of repeated transmissions, and i is an integer greater than or equal to 1.

4. The indication method according to claim 1, wherein the repeatedly transmitted physical channel satisfies at least one of the following conditions:

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

5. The indication method according to claim 1, wherein the sending the indication information specifically comprises:

or

6. The indication method according to claim 1, wherein when the receiving end device and the sending end device are both user equipment UE, the indication method further comprises:

and reporting the indication information to a base station.

7. An indication method, used for a sending end device, is characterized in that the indication method includes:

8. The indication method according to claim 7, wherein the indication information further indicates correct demodulation of the physical channel according to the first N + i repeated transmissions, wherein i is an integer greater than or equal to 1.

9. The indication method according to claim 7, wherein the repeatedly transmitted physical channel satisfies at least one of the following conditions:

have the same hybrid automatic repeat request, HARQ, process;

carrying the same transport block TB;

carry the same data or signaling;

containing M slots or subslots.

10. The indication method according to claim 7, wherein after receiving the indication information sent by the receiving end device, the indication method further comprises:

or

11. The indication method according to claim 7, wherein when both the sending end device and the receiving end device are User Equipment (UE), the indication method further comprises:

and reporting the indication information to a base station.

12. A repeated transmission control method is used for sending end equipment, and is characterized in that the repeated transmission control method comprises the following steps:

receiving indication information sent by the receiving end equipment;

13. The repetitive transmission control method according to claim 12, wherein after receiving the indication information sent by the receiving end device, the repetitive transmission control method further comprises:

14. The repetitive transmission control method according to claim 12, wherein after receiving the indication information sent by the receiving end device, the repetitive transmission control method further comprises:

15. A receiving-end device, comprising:

16. A transmitting-end device, comprising:

17. A transmitting-end device, comprising:

18. A receiving-end device, comprising a transceiver and a processor,

19. A transmitting end device, comprising a transceiver and a processor,

20. A transmitting end device, comprising a transceiver and a processor,

21. A receiving-end device, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the indication method according to any one of claims 1 to 6.

22. A transmitting-end device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the indication method according to any one of claims 7 to 11; or steps of a repeat transmission control method according to any one of claims 12 to 14 when the program is executed by the processor.

23. 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 indication method according to any one of claims 1 to 6; or the computer program when executed by a processor implements the steps of the indication method of any one of claims 7 to 11; or which computer program, when being executed by a processor, carries out the steps of the repeat transmission control method of any of claims 12 to 14.