CN112398616B

CN112398616B - Feedback information transmission method and device

Info

Publication number: CN112398616B
Application number: CN201910755703.8A
Authority: CN
Inventors: 黎超; 王俊伟; 黄海宁; 刘哲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2022-05-17
Anticipated expiration: 2039-08-15
Also published as: CN112398616A; WO2021027815A1

Abstract

The embodiment of the application relates to a feedback information transmission method and a device, which are used for solving the conflict between feedback resources when the feedback period is greater than 1 and ensuring the reliability and accuracy of feedback information transmission, can be applied to the Internet of vehicles, such as V2X, LTE-V, V2V and the like, or can be applied to the fields of intelligent driving, intelligent Internet vehicle networking and the like, and the method comprises the following steps: the method comprises the steps that first equipment determines feedback resources of feedback information corresponding to first data according to a first resource index of the received first data, wherein the feedback resources comprise one or more of time domain resources, frequency domain resources and sequence resources; and the first device sends the feedback information through the feedback resources, wherein for the first data transmitted in different time slots, when the feedback information of the first data is in the same time slot feedback, at least one of time domain resources, frequency domain resources and sequence resources in the feedback resources occupied by the feedback information is different.

Description

Feedback information transmission method and device

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a feedback information transmission method and apparatus.

Background

The communication between devices can be direct including Device to Device (D2D) communication, Vehicle to Vehicle communication, V2X communication, V2X including Vehicle to Vehicle (V2V) communication, Vehicle to Pedestrian (V2P) communication, or Vehicle to Infrastructure/Network (V2I/N) communication.

In the V2X technology being studied by 3GPP, it is required to support low-latency and highly reliable transmission. In order to achieve highly reliable transmission, a feasible way is that a receiver (also called receiving device) makes corresponding feedback for data sent by a transmitter (also called sending device), thereby ensuring high reliability of a communication link.

In the V2X link, a receiver of data will transmit feedback information to a corresponding transmitter of data. In the base station-less scenario, the transmission resource of the data is selected by the ue from a predefined set of resources. The resources for data transmission selected by different devices may be different or the same. Correspondingly, feedback resources selected by different devices for sending feedback may be the same or different. In particular, in a geographic area, different devices are simultaneously transmitting data and/or feedback without base station management and scheduling. Where feedback resources may overlap or collide. If the problem of feedback resource conflict is not solved, not only the effect of improving the transmission reliability through feedback is not achieved, but also unnecessary retransmission is caused, and the transmission reliability and the transmission efficiency are reduced.

Disclosure of Invention

The invention provides a feedback information transmission method and a feedback information transmission device, which are beneficial to solving the problem of feedback resource conflict, thereby ensuring the reliability and the efficiency of data transmission.

In a first aspect, a method for transmitting feedback information is provided, where the method includes: the method comprises the steps that a first device determines feedback resources of feedback information corresponding to first data according to a first resource index of the received first data, wherein the feedback resources comprise one or more of time domain resources, frequency domain resources and sequence resources; the first device sends the feedback information through the feedback resource; the second device receives the feedback information through the feedback resource.

For first data transmitted in different time slots, when feedback information of the first data is in feedback of the same time slot, at least one of time domain resources, frequency domain resources and sequence resources in the feedback resources occupied by the feedback information is different.

The first device and the second device may each be an in-vehicle device, a device used by a user, a road side unit, a network device, or the like.

The resource index includes one or more of a time domain resource index (e.g., a slot index), a frequency domain resource index, and an indication index of a sequence, and the resource index may be used to indicate a resource used when carrying data and/or control information.

Optionally, the time domain resource includes a slot (slot), a mini-slot (i.e., a slot with a symbol number smaller than that of a complete slot), a symbol (symbol), or other time domain granularity (e.g., a system frame, a subframe).

Frequency domain resources including subchannels, bands (bands), carriers (carriers), bandwidth parts (BWPs), Resource Blocks (RBs), or resource pools, etc.

Sequence resources, also called code domain resources, are related parameters used to indicate sequences. For a random sequence, the parameters of the sequence include the start position of the sequence, the length of the sequence, and the initial value of the sequence; for low-papr sequences (e.g., ZC sequences), the parameters of the sequence include a root sequence, a mask, a scrambling code, a cyclic shift, an orthogonal cover code, or the like.

Specifically, the second device receives the first data through the first resource, and the first device receives the first data through the first resource.

The process of the second device determining the feedback resource of the feedback information is basically the same as the process of the first device determining the feedback resource of the feedback information.

According to the scheme provided by the embodiment of the application, for the first data transmitted in different time slots, when the feedback information of the first data is in the same time slot for feedback, at least one of time domain resources, frequency domain resources and sequence resources in the feedback resources occupied by the feedback information is different, the first device determines different feedback resources for the feedback information on the continuous N time slots in the same feedback period according to the resource index of the first data, and transmits the feedback information through the different feedback resources, so that the method reduces or solves the conflict among the feedback resources, ensures the efficient and accurate transmission of the data, and improves the reliability of the transmission link.

In one possible implementation, the feedback information is used for feeding back positive or negative acknowledgements, or only for feeding back positive acknowledgements, or only for feeding back negative acknowledgements.

Illustratively, an acknowledgement may also be referred to as an ACK and a negative acknowledgement may also be referred to as a NACK.

In a possible implementation, the determining, by the first device, the feedback resource of the feedback information corresponding to the first data according to the first resource index of the received first data includes one or more of the following manners:

the first equipment determines a second time slot index (such as a second time slot number) of the feedback information corresponding to the first data according to the first time slot index (such as the first time slot number) where the first data is located and the feedback cycle N;

the first equipment determines a second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located;

and the first equipment determines a sequence of the feedback information corresponding to the first data according to the first time slot index and/or the first frequency domain resource index where the first data is located.

In this implementation, the first device ensures that, for first data transmitted in different time slots, the first device determines one or more of a second time slot index of the feedback information, a second frequency domain resource index of the feedback information, and a sequence of the feedback information, and when the feedback information of the first data is located in the same time slot for feedback, at least one of a time domain resource, a frequency domain resource, and a sequence resource in the feedback resources occupied by the feedback information is different, so as to reduce or solve a collision between the feedback resources.

In a possible implementation, the second frequency-domain resource where the feedback information is located belongs to a first feedback resource subset, where the frequency-domain feedback resource on the time slot where the feedback information is located includes at least two feedback resource subsets, and the first feedback resource subset is one of the at least two feedback resource subsets.

And the time slot in which the feedback information is positioned is the time slot indicated by the second time slot index.

Optionally, the unit of the first frequency domain resource where the first data is located is the same as or different from the unit of the second frequency domain resource where the feedback information is located.

For example, the at least two feedback resource subsets are N feedback resource subsets, and different feedback resource subsets correspond to feedback resource positions where the first data on different time slots are located.

I.e. it can be understood as dividing the frequency domain feedback resources on the time slot where the feedback information is located into the same number of feedback resource subsets as the feedback period N.

For another example, the at least two feedback resource subsets correspond to at least two different feedback modes, and the at least two different feedback modes include at least two of: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

Specifically, the at least two different pieces of feedback information include:

feeding back only an acknowledgement, and feeding back either an acknowledgement or a negative acknowledgement; alternatively, the first and second electrodes may be,

feeding back positive or negative acknowledgements, and feeding back only negative acknowledgements; alternatively, the first and second liquid crystal display panels may be,

feeding back only positive acknowledgements, and feeding back only negative acknowledgements; alternatively, the first and second electrodes may be,

feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

In the implementation, frequency division is performed on the frequency domain feedback resources on the time slot, and the frequency domain resources belonging to different feedback resource subsets do not conflict when feeding back information, so that transmission of the feedback information is implemented. The feedback resources corresponding to the data on different time slots are corresponding to different subsets of the feedback resources on the same feedback time slot, so that the interference between the feedback resources corresponding to the data on different time slots is avoided.

In a possible implementation, the determining, by the first device, the second frequency-domain resource index of the feedback information corresponding to the first data according to the first frequency-domain resource index where the first data is located includes:

the first device determines a second frequency domain resource index of feedback information corresponding to the first data according to a first frequency domain resource index where the first data is located and a first parameter, wherein the first parameter includes one or more of the following: the feedback method comprises the steps of a feedback cycle, a first time slot index of the first data, a preset first numerical value, a second time slot index where feedback information corresponding to the first data is located, a frequency domain deviation value, feedback time delay of the first equipment and the total number of frequency domain feedback resources on the time slot where the feedback information is located, wherein the feedback time delay is the minimum time interval from the first equipment to the first equipment receiving the first data and sending the feedback information.

Optionally, the frequency domain offset value may be a specific frequency domain offset value configured in advance, or may correspond to a time slot position where the first data is located, that is, the frequency domain offset value corresponding to different time slot mappings, that is, the frequency domain offset value of the feedback information is related to the first time slot where the first data corresponding to the feedback information is located. The setting of the frequency domain offset value can separate the SA/data on N adjacent time slots on the frequency domain, and can realize one-to-one correspondence with the frequency domain resources of the PSFCH, thereby solving the problem of overlapping of the feedback resources on N continuous time slots, avoiding the overlapping and mutual interference between the feedback resources, namely avoiding the direct overlapping of the feedback resources on the adjacent time slots by increasing the offset value in the frequency domain, and avoiding the mutual interference between sequences.

In this implementation, the first device determines corresponding second frequency domain resource indexes for the feedback information of the first data at different time slots, so that the frequency domain resources of the feedback information are different, and conflicts between the feedback resources are solved.

In a possible implementation, the determining, by the first device, the second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located and the first parameter includes:

the first equipment determines a third frequency domain resource index according to the ratio of the first frequency domain resource index to the feedback period; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the first equipment determines a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback period and the first frequency domain resource index; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the first device determines a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback time delay, the feedback period and the first frequency domain resource index; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the first device determines the third frequency domain resource index according to the difference between the second time slot index and the first time slot index and the ratio of the first frequency domain resource index to the feedback period; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the first device determines a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback time delay and the ratio of the first frequency domain resource index to the feedback period; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the first device determines a third frequency domain resource index according to the first time slot index, the first frequency domain resource index and the frequency domain offset value; and the first equipment determines a second frequency domain resource index according to the third frequency domain resource index.

In one possible implementation, the determining, by the first device, the second frequency-domain resource index according to the third frequency-domain resource index includes:

the first device determines the third frequency domain resource index as the second frequency domain resource index; alternatively, the first and second electrodes may be,

the first equipment performs modulus operation on the total number of the frequency domain feedback resources by the third frequency domain resource cable, and determines the second frequency domain resource index according to a modulus operation result; alternatively, the first and second electrodes may be,

the first equipment rounds the third frequency domain resource index upwards, and determines the second frequency domain resource index according to a round-up result; alternatively, the first and second liquid crystal display panels may be,

and the first equipment rounds the third frequency domain resource index downwards, and determines the second frequency domain resource index according to a round-down result.

In a possible implementation, the second frequency-domain resource index includes an index of a feedback resource subset of the second frequency-domain resource at a time slot where the feedback information is located, and/or a second frequency-domain resource index in the feedback resource subset.

The second frequency-domain Resource index within the feedback Resource subset comprises an index of a subchannel, a PRB, or a RE (RE) within the first feedback Resource subset.

In one possible implementation, the feedback resource subset includes PRBs or REs, and the feedback resource subset includes continuous PRBs or REs for carrying information or discontinuous PRBs or REs for carrying information at equal intervals in the frequency domain.

In a possible implementation, the determining, by the first device, the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located includes:

the first equipment determines a sequence parameter of a feedback information sequence corresponding to the first data according to a first time slot index and/or a first frequency domain resource index where the first data is located; the first device determines a sequence carrying the feedback information according to the sequence parameters, wherein the sequence parameters include one or more of the following: the method comprises the steps of initial value of a sequence, initial position of the sequence, root sequence number of the sequence, cyclic shift value of the sequence and orthogonal cover code of the sequence.

Optionally, this approach may be combined with the second frequency domain resource index determination process in the foregoing approach to further ensure that no collision occurs between feedback resources. Interference between cancellation sequences may be used even when the frequency domain resources of feedback occupied on different time slots in which data is transmitted are the same.

In this implementation, the first device determines corresponding sequence parameters for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

In a possible implementation, the determining, by the first device, the sequence parameter of the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located includes:

the first device determines a root sequence number of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a second parameter, where the second parameter includes one or more of the following: the preset second value, the second time slot number, the number of the root sequence numbers and the second frequency domain resource index of the feedback information.

In this implementation, the first device determines corresponding root sequence numbers for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

the first device determines a cyclic shift value and/or an orthogonal cover code of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a third parameter, where the third parameter includes one or more of the following: a preset third value, the second time slot number, the number of cyclic shift values, the number of orthogonal cover codes, the feedback period, the second frequency domain resource index, and the feedback delay.

Specifically, the first device determines a cyclic shift value of the sequence according to a first slot index and/or a first frequency domain resource index where the first data is located, and the third parameter.

Or, the first device determines the orthogonal cover code of the sequence according to the first time slot index and/or the first frequency domain resource index where the first data is located, and the third parameter.

Or, the first device determines the cyclic shift value and the orthogonal cover code of the sequence according to the first slot index and/or the first frequency domain resource index where the first data is located, and the third parameter.

In this implementation, the first device determines corresponding cyclic shift values and/or orthogonal cover codes for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the collision between the feedback resources.

In one possible implementation, the determining, by the first device, the cyclic shift and/or the orthogonal cover code of the sequence according to the first slot index and/or the first frequency-domain resource index where the first data is located and the third parameter includes:

the first equipment determines a fourth numerical value according to the first time slot index and/or the first frequency domain resource index where the first data is located and the third parameter;

the first device determines the fourth value as a cyclic shift value and/or an orthogonal cover code of the sequence; or, the first device modulo the number of cyclic shift values and/or the number of orthogonal cover codes by the fourth value, and determines the cyclic shift values and/or the orthogonal cover codes of the sequence according to a modulo result.

Specifically, the first device determines the fourth value as a cyclic shift value of the sequence.

Or, the first device determines the fourth value as an orthogonal cover code.

Or, the first device modulo the number of cyclic shift values by the fourth value, and determines the cyclic shift value of the sequence according to a modulo result.

Or, the first device determines the orthogonal cover codes of the sequence by taking the fourth value modulo the number of the orthogonal cover codes according to a modulo result.

the first equipment performs modulus operation on the total cyclic shift number by the first time slot index, and determines a cyclic shift value according to a modulus operation result; alternatively, the first and second electrodes may be,

the first device determines a cyclic shift value according to a difference between the first time slot index and the second time slot index; alternatively, the first and second electrodes may be,

and the first equipment performs modulus operation on the total cyclic shift value according to the difference between the first time slot index and the second time slot index, and determines a cyclic shift value according to a modulus operation result.

In this implementation, the first device determines corresponding cyclic shift values for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

In one possible implementation, the sequence parameters further include at least two different sequence parameter subsets, the different sequence parameter subsets correspond to at least two different feedback manners, and the at least two different feedback manners include one or more of the following: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

In one possible implementation, the feedback resources include at least two groups, and the at least two groups of feedback resources respectively correspond to different processing capabilities.

In one possible implementation, the at least two sets of feedback resources include: a first set of feedback resources and a second set of feedback resources;

the first feedback resource set corresponds to a first feedback processing capability;

the second set of feedback resources corresponds to a second feedback processing capability.

The first feedback processing capability and the second feedback processing capability both refer to processing capabilities of a first device that sends feedback information, and the processing capability of the first device corresponding to the first feedback processing capability is different from the processing capability of the first device corresponding to the second feedback processing capability.

In one possible implementation, the at least two sets of feedback resources include:

a first frequency domain resource and a second frequency domain resource; alternatively, the first and second electrodes may be,

a first root sequence group and a second root sequence group; alternatively, the first and second electrodes may be,

a first set of cyclic shift values and a second set of cyclic shift values; alternatively, the first and second electrodes may be,

a first orthogonal cover code group and a second orthogonal cover code group; alternatively, the first and second electrodes may be,

a first sequence initial value and a second sequence initial value; alternatively, the first and second electrodes may be,

the initial position of the first sequence and the initial position of the second sequence.

In a possible implementation, the first device determines, according to the processing capability, a feedback resource set to which the processing capability belongs;

and the first equipment sends the feedback information according to the feedback resource set and the feedback resource.

Optionally, this approach may be combined with the second frequency-domain resource index determination procedure in the above approach and/or the sequence determination procedure in the above approach to further ensure that no collision occurs between feedback resources. And the feedback resources on each feedback time slot are divided into a plurality of groups, so that the corresponding interference generated after the feedback resources of the first equipment with different processing capabilities are overlapped is avoided.

In a second aspect, a feedback information transmission method is provided, and the method includes: the second equipment determines feedback resources of feedback information corresponding to the first data according to a first resource index of the first data, wherein the feedback resources comprise one or more of time domain resources, frequency domain resources and sequence resources; the second device receives the feedback information through the feedback resource.

According to the scheme provided by the embodiment of the application, for the first data transmitted in different time slots, when the feedback information of the first data is in the same time slot for feedback, at least one of time domain resources, frequency domain resources and sequence resources in the feedback resources occupied by the feedback information is different, the second device determines different feedback resources for the feedback information on the continuous N time slots in the same feedback period according to the resource index of the first data, and transmits the feedback information through the different feedback resources, so that the method reduces or solves the conflict between the feedback resources, and ensures the efficient and accurate transmission of the data.

In a possible implementation, the second device determines, according to a first resource index of the received first data, a feedback resource of feedback information corresponding to the first data by using one or more of the following manners:

the second equipment determines a second time slot index of the feedback information corresponding to the first data according to the first time slot index where the first data is located and the feedback cycle N;

the second equipment determines a second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located;

and the second equipment determines a sequence of the feedback information corresponding to the first data according to the first time slot index and/or the first frequency domain resource index where the first data is located.

In this implementation, the second device ensures that, for first data transmitted in different time slots, the second device determines one or more of a second time slot index of the feedback information, a second frequency domain resource index of the feedback information, and a sequence of the feedback information, and when the feedback information of the first data is located in the same time slot for feedback, at least one of a time domain resource, a frequency domain resource, and a sequence resource in the feedback resources occupied by the feedback information is different, thereby reducing or solving a collision between the feedback resources.

In the implementation, frequency division is performed on the frequency domain feedback resources on the time slot, and the frequency domain resources belonging to different feedback resource subsets do not conflict when feeding back information, so that transmission of the feedback information is implemented.

In a possible implementation, the determining, by the second device, the second frequency-domain resource index of the feedback information corresponding to the first data according to the first frequency-domain resource index where the first data is located includes:

the second device determines a second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located and a first parameter, wherein the first parameter includes one or more of the following: the feedback method comprises the steps of a feedback cycle, a first time slot index of the first data, a preset first numerical value, a second time slot index where feedback information corresponding to the first data is located, a frequency domain deviation value, feedback time delay of the first equipment and the total number of frequency domain feedback resources on the time slot where the feedback information is located, wherein the feedback time delay is the minimum time interval from the first equipment to the first equipment receiving the first data and sending the feedback information.

Optionally, the frequency domain offset value may be a specific frequency domain offset value configured in advance, or may correspond to a time slot position where the first data is located, that is, the frequency domain offset value corresponding to different time slot mappings, that is, the frequency domain offset value of the feedback information is related to the first time slot where the first data corresponding to the feedback information is located.

In this implementation, the second device determines corresponding second frequency domain resource indexes for the feedback information of the first data at different time slots, so that the frequency domain resources of the feedback information are different, and conflicts between the feedback resources are solved.

In a possible implementation, the determining, by the second device, the second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located and the first parameter includes:

the second equipment determines a third frequency domain resource index according to the ratio of the first frequency domain resource index to the feedback period; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the second device determines a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback cycle and the first frequency domain resource index; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the second device determines a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback time delay, the feedback period and the first frequency domain resource index; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the second device determines the third frequency domain resource index according to the difference between the second time slot index and the first time slot index and the ratio of the first frequency domain resource index to the feedback period; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the second device determines a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback time delay and the ratio of the first frequency domain resource index to the feedback period; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; alternatively, the first and second electrodes may be,

the second device determines a third frequency domain resource index according to the first time slot index, the first frequency domain resource index and the frequency domain offset value; and the second equipment determines a second frequency domain resource index according to the third frequency domain resource index.

In one possible implementation, the determining, by the second device, the second frequency-domain resource index according to the third frequency-domain resource index includes:

the second device determines the third frequency domain resource index as the second frequency domain resource index; alternatively, the first and second liquid crystal display panels may be,

the second equipment performs modulus operation on the total number of the frequency domain feedback resources by the third frequency domain resource cable, and determines the second frequency domain resource index according to a modulus operation result; alternatively, the first and second electrodes may be,

the second equipment rounds the third frequency domain resource index upwards, and determines the second frequency domain resource index according to a round-up result; alternatively, the first and second electrodes may be,

and the second equipment rounds the third frequency domain resource index downwards, and determines the second frequency domain resource index according to a round-down result.

In a possible implementation, the second frequency-domain resource index includes an index of a feedback resource subset of the second frequency-domain resource in a time slot in which the feedback information is located, and/or a second frequency-domain resource index in the feedback resource subset.

In a possible implementation, the determining, by the second device, the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located includes:

the second equipment determines a sequence parameter of a feedback information sequence corresponding to the first data according to a first time slot index and/or a first frequency domain resource index where the first data is located; the second device determines a sequence carrying the feedback information according to the sequence parameters, wherein the sequence parameters include one or more of the following: the method comprises the steps of initial value of a sequence, initial position of the sequence, root sequence number of the sequence, cyclic shift value of the sequence and orthogonal cover code of the sequence.

Optionally, this approach may be combined with the second frequency domain resource index determination process in the foregoing approach to further ensure that no collision occurs between feedback resources.

In this implementation, the second device determines corresponding sequence parameters for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

In a possible implementation, the determining, by the second device, the sequence parameter of the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located includes:

the second device determines a root sequence number of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a second parameter, where the second parameter includes one or more of: the preset second value, the second time slot number, the number of the root sequence numbers and the second frequency domain resource index of the feedback information.

In this implementation, the second device determines corresponding root sequence numbers for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

the second device determines a cyclic shift value and/or an orthogonal cover code of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a third parameter, where the third parameter includes one or more of the following: a preset third value, the second time slot number, the number of cyclic shift values, the number of orthogonal cover codes, the feedback period, the second frequency domain resource index, and the feedback delay.

In this implementation, the second device determines corresponding cyclic shift values and/or orthogonal cover codes for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

In one possible implementation, the determining, by the second device, the cyclic shift and/or the orthogonal cover code of the sequence according to the first slot index and/or the first frequency-domain resource index where the first data is located and the third parameter includes:

the second equipment determines a fourth numerical value according to the first time slot index and/or the first frequency domain resource index where the first data is located and the third parameter;

the second device determines the fourth value as a cyclic shift value and/or an orthogonal cover code of the sequence; or, the first device modulo the number of cyclic shift values and/or the number of orthogonal cover codes by the fourth value, and determines the cyclic shift values and/or the orthogonal cover codes of the sequence according to a modulo result.

the second equipment performs modulus operation on the total cyclic shift value by the first time slot index, and determines a cyclic shift value according to a modulus operation result; alternatively, the first and second electrodes may be,

the second device determines a cyclic shift value according to a difference between the first time slot index and the second time slot index; alternatively, the first and second electrodes may be,

and the second equipment performs modulus operation on the total cyclic shift value according to the difference between the first time slot index and the second time slot index, and determines the cyclic shift value according to a modulus operation result.

In this implementation, the second device determines corresponding cyclic shift values for the feedback information of the first data on different time slots, so that the sequences of the feedback information are different to solve the conflict between the feedback resources.

In a possible implementation, the second device determines, according to the processing capability, a feedback resource set to which the processing capability belongs;

and the second equipment receives the feedback information according to the feedback resource set and the feedback resource.

Optionally, this approach may be combined with the second frequency-domain resource index determination procedure in the above approach and/or the sequence determination procedure in the above approach to further ensure that no collision occurs between feedback resources.

In one possible implementation, the second device detects the feedback information in the at least two sets of feedback resources, and retransmits the first data when the first device detects negatively acknowledged feedback information in any one set of feedback resources.

In a third aspect, a method for sending information is provided, where the method includes: the third equipment determines a first symbol set and a second symbol set which carry first information, wherein the bandwidth of the first symbol set is not less than a preset value; the third device transmitting the first set of symbols and the second set of symbols; and the fourth device receives the first symbol set and the second symbol set, and the fourth device acquires first information through the first symbol set and the second symbol set.

Optionally, the first information is a data packet, indication information when sending data, or feedback information.

Optionally, the preset value is 2, 4, or 8 PRBs, or the number of PRBs corresponding to the preset value is a positive integer not less than 10, for example, the preset value is 10, 12, or 20 PRBs.

Illustratively, the first set of symbols is used for automatic gain control at a receiver of the first information.

By the information sending method, the first information can be received and sent, and AGC detection is supported.

In a possible implementation, the first information carried by the first symbol set is the same as the first information carried by the second symbol set, or the first information carried by the first symbol set is a subset of the first information carried by the second symbol set.

In one possible implementation, the first set of symbols is adjacent to the second set of symbols in the time domain and the second set of symbols follows the first set of symbols.

In one possible implementation, the first set of symbols includes at least 1 symbol, the second set of symbols includes at least 1 symbol, and the number of symbols in the second set of symbols is not less than the number of symbols in the first set of symbols.

In one possible implementation, the first symbol set is a first symbol for transmitting the first information, and the second symbol set is a symbol after the first symbol set and carrying the first information.

In one possible implementation, the method further comprises:

the bandwidth of the first symbol set is the same as that of the second symbol set, and the first symbol set and the second symbol set are mapped continuously in a frequency domain; alternatively, the first and second electrodes may be,

the bandwidth of the first symbol set is the same as that of the second symbol set, and the first symbol set and the second symbol set are mapped discontinuously at equal intervals in a frequency domain; alternatively, the first and second electrodes may be,

the bandwidth of the first set of symbols is greater than the bandwidth of the second set of symbols.

In one possible implementation, the bandwidth of the first symbol set is the same as the bandwidth of the second symbol set, and the non-contiguous mapping in the frequency domain at equal intervals comprises:

in each symbol in the first symbol set and the second symbol set, one RE carrying the first information is mapped to every M REs, and no data or signal is mapped to other M-1 REs.

And M is 10 or 12 or the number of physical resource blocks corresponding to the preset value.

In one possible implementation, the first symbol set having a same bandwidth as the second symbol set comprises:

REs in each symbol in the first symbol set are subsets of REs in each symbol in the second symbol set; alternatively, the first and second electrodes may be,

the first symbol set and the second symbol set completely carry the encoded transport block of the first information.

In one possible implementation, the first set of symbols having a bandwidth greater than a bandwidth of the second set of symbols includes:

in each symbol in the first symbol set, one RE carrying the first information is mapped every M REs, no data or signal is mapped on the other M-1 REs, and each symbol in the second symbol is mapped consecutively in a frequency domain.

In one possible implementation, the method further comprises:

and the signal of each RE on at least one symbol in the first symbol set is correspondingly the same as the signal of each RE on at least one symbol in the second symbol set.

In a fourth aspect, a method for sending information is provided, the method including: the fourth device receives a first symbol set and a second symbol set, wherein the first symbol set and the second symbol set carry first information, and the bandwidth of the first symbol set is not less than a preset value; and the fourth equipment acquires first information through the first symbol set and the second symbol set.

Illustratively, the fourth device performs automatic gain control based on the first symbol set.

In one possible implementation, the method further comprises:

In one possible implementation, the bandwidth of the first symbol set is the same as the bandwidth of the second symbol set, and the mapping at equal intervals in the frequency domain comprises:

In one possible implementation, the method further comprises:

In a fifth aspect, a feedback information transmission apparatus is provided, which has the function of implementing the behavior in the method instance of the first or second aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In a possible implementation, the structure of the apparatus includes a processing unit and a transceiver unit, and these units may perform corresponding steps or functions in the method example of the first aspect or the second aspect, for specific reference, detailed description in the method example is given, and details are not repeated here.

The apparatus may be located in or be the first device or the second device.

In a sixth aspect, a feedback information transmission apparatus is provided. The apparatus provided by the present application has the functionality to implement the first device or the second device described in the above method aspect, and comprises means (means) for performing the steps or functions described in any of the first aspect, the second aspect, any possible implementation manner of the first aspect, or any possible implementation manner of the second aspect. The steps or functions may be implemented by software, or by hardware (e.g., a circuit), or by a combination of hardware and software. Wherein the apparatus may be the first device or the second device.

In one possible implementation, the apparatus includes one or more processors and a communication unit. The one or more processors are configured to enable the apparatus to perform the first device or the second respective function of the method described above.

Optionally, the apparatus may also include one or more memories for coupling with the processor that hold the necessary program instructions and/or data for the apparatus. The one or more memories may be integral with the processor or separate from the processor. The present application is not limited.

In another possible implementation, the apparatus includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver or the input/output circuit to transceive signals, the memory is configured to store a computer program, and the processor is configured to execute the computer program in the memory, so that the apparatus performs the method performed by the first device or the second device in the first aspect, the second aspect, any possible implementation manner of the first aspect, or any possible implementation manner of the second aspect.

In one possible implementation, the apparatus includes one or more processors and a communication unit. The one or more processors are configured to enable the apparatus to perform the respective functions of the first device or the second device in the above-described method.

Optionally, the apparatus may further comprise one or more memories for coupling with the processor, which stores program instructions and/or data necessary for the terminal device. The one or more memories may be integral with the processor or separate from the processor. The present application is not limited.

The apparatus may be located in or be the first device or the second device.

In another possible implementation, the apparatus includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver or the input/output circuit to transceive signals, the memory is configured to store a computer program, and the processor is configured to execute the computer program in the memory, so that the apparatus performs the method performed by the first device or the second device in any one of the first aspect, the second aspect, any one of the possible implementations of the first aspect, or any one of the possible implementations of the second aspect.

In a seventh aspect, a computer-readable storage medium is provided for storing a computer program comprising instructions for performing the method of the first aspect, the second aspect, any of the possible implementations of the first aspect, or any of the possible implementations of the second aspect.

In an eighth aspect, there is provided a computer program product comprising: computer program code for causing a computer to perform the method of any of the above described first aspect, second aspect, any of the possible implementations of the first aspect, or any of the possible implementations of the second aspect, when said computer program code is run on a computer.

In a ninth aspect, a feedback information transmission apparatus, such as a chip system, is provided, where the apparatus is connected to a memory, and is configured to read and execute a software program stored in the memory, and execute the method in any one of the foregoing first aspect, second aspect, and possible implementation manner of the first aspect, or any one of possible implementation manner of the second aspect.

In a tenth aspect, there is provided an information transmission apparatus having a function of implementing the actions in the method example of the first or second aspect described above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In a possible implementation, the structure of the apparatus includes a processing unit and a transceiver unit, and these units may perform corresponding steps or functions in the method example of the first aspect or the second aspect, for specific reference, detailed description in the method example is given, and details are not repeated here.

The apparatus may be located in or be a third device or a fourth device.

In an eleventh aspect, an information transmission apparatus is provided. The apparatus provided by the present application has the function of implementing the third device or the fourth device described in the above method aspect, and includes means (means) for performing the steps or functions described in any of the third aspect, the fourth aspect, any possible implementation manner of the third aspect, or any possible implementation manner of the fourth aspect. The steps or functions may be implemented by software, or by hardware (e.g., a circuit), or by a combination of hardware and software. Wherein the apparatus may be a third device or a fourth device.

In one possible implementation, the apparatus includes one or more processors and a communication unit. The one or more processors are configured to enable the apparatus to perform the functions of the third device or the fourth device in the above method.

In another possible implementation, the apparatus includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver or the input/output circuit to transceive signals, the memory is configured to store a computer program, and the processor is configured to execute the computer program in the memory, so that the apparatus performs the method performed by the third device or the fourth device in any one of the third aspect, the fourth aspect, any one of the possible implementations of the third aspect, or any one of the possible implementations of the fourth aspect.

The apparatus may be located in or be a third device or a fourth device.

In a twelfth aspect, a computer-readable storage medium is provided for storing a computer program comprising instructions for performing the method of any one of the third, fourth, and possible implementations of the third, or any one of the possible implementations of the fourth aspect.

In a thirteenth aspect, there is provided a computer program product comprising: computer program code for causing a computer to perform the method of any of the possible implementations of the third, fourth, third, or any of the possible implementations of the fourth aspect described above, when said computer program code is run on a computer.

In a fourteenth aspect, an information transmission apparatus, such as a chip system, is provided, where the apparatus is connected to a memory, and is configured to read and execute a software program stored in the memory, and execute any one of the possible implementations of the third aspect, the fourth aspect, and the third aspect, or the method in any one of the possible implementations of the fourth aspect.

Drawings

The drawings that are required to be used in the description of the embodiments are briefly described below.

FIG. 1 is a diagram illustrating different feedback periods for feedback information;

fig. 2 is a schematic diagram of an application scenario provided in an embodiment of the present application;

fig. 3 is a schematic flow chart of data transmission according to an embodiment of the present application;

fig. 4 is a schematic flow chart illustrating transmission of feedback information according to an embodiment of the present application;

fig. 5 is a schematic diagram of feedback information transmission provided in an embodiment of the present application;

fig. 6 is a schematic diagram of feedback information transmission provided in an embodiment of the present application;

fig. 7 is a schematic diagram of feedback information transmission provided in an embodiment of the present application;

fig. 8 is a schematic diagram of feedback information transmission provided in an embodiment of the present application;

fig. 9 is a schematic diagram of feedback information transmission provided in an embodiment of the present application;

fig. 10 is a schematic diagram of feedback information transmission provided in an embodiment of the present application;

fig. 11 is a schematic flow chart of data transmission according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a data channel according to an embodiment of the present application;

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

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

fig. 15 is a schematic structural diagram of a feedback information transmission apparatus according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a feedback information transmission apparatus according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application;

fig. 18 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: fourth Generation (4G), 4G systems include LTE systems, Worldwide Interoperability for Microwave Access (WiMAX) communication systems, future fifth Generation (5G) systems, such as NR, and future communication systems, such as 6G systems. In addition, the technical solution provided in the embodiment of the present application may be applied to a cellular link, and may also be applied to a link between devices, for example, a device to device (D2D) link. The D2D link or the V2X link may also be referred to as a Sidelink (SL), where the sidelink may also be referred to as a side link or a sidelink, etc. In the embodiments of the present application, the above terms all refer to links established between devices of the same type, and have the same meaning. The devices of the same type may be links from the terminal device to the terminal device, links from the base station to the base station, links from the relay node to the relay node, and the like, which are not limited in this embodiment of the present application. For the link between the terminal device and the terminal device, there is a D2D link defined by release (Rel) -12/13 of 3GPP, and also a vehicle-to-vehicle, vehicle-to-handset, or vehicle-to-any entity V2X link defined by 3GPP for the internet of vehicles, including Rel-14/15. But also the Rel-16 and subsequent releases of NR system based V2X link currently under investigation by 3 GPP.

This application is intended to present various aspects, embodiments or features around a system that may include a number of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, a combination of these schemes may also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

The network architecture and the service scenario (or application scenario) described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person of ordinary skill in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

Some terms of the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

1) The device comprises a terminal device and a network device. Terminal equipment, including devices that provide voice and/or data connectivity to a user, may include, for example, handheld devices with wireless connection capability or processing devices connected to wireless modems. The device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The apparatus may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an Access Point (AP), a remote terminal device (remote terminal), an access terminal device (access terminal), an aircraft (e.g., unmanned aerial vehicle, manned aircraft, hot air balloon, etc.), a user terminal device (user terminal), a user agent (user agent), or a user equipment (user device), etc. For example, mobile phones (or so-called "cellular" phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-embedded mobile devices, smart wearable devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in embodiments of the present application, the device may also be a wearable device or the like. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

While the various devices described above, if located on a vehicle (e.g., placed in or installed in a vehicle), may be considered to be vehicle-mounted terminal devices, also referred to as, for example, on-board units (OBUs); a roadside terminal device, also referred to as a Road Side Unit (RSU), may be considered a roadside terminal device if located on the roadside terminal device (e.g., placed within or installed within the roadside Unit). The terminal device of the present application may also be an on-board module, an on-board component, an on-board chip, or an on-board unit that is built in the vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in on-board module, on-board component, on-board chip, or on-board unit.

In this embodiment, the device may further include a network device, where the network device includes AN Access Network (AN) device, such as a base station (e.g., AN access point), which may refer to a device in the access network that communicates with the wireless terminal device through one or more cells over AN air interface, or a Road Side Unit (RSU) in a V2X technology, for example. The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation Node B (gNB) in a 5G NR system, or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (cloud radio access network) system, which is not limited in the embodiments.

The present invention may be used for links between devices of the same type, and may also be used for links between a terminal and a network device, which is not limited in this respect.

2) A transmitter, also called a sending device, corresponds to a receiver, which is used to send information, such as data packets, control information, indication information or feedback information, etc.

3) A receiver, also called a receiving device, corresponds to a transmitter, the receiver is configured to receive information sent by the transmitter, and the receiver is further configured to send feedback information to the transmitter, that is, the receiver can be understood as a transmitter that sends feedback information, that is, a device can be used as both a transmitter and a receiver.

4) The transmission link comprises a side uplink between two devices, an uplink and a downlink between the terminal device and the network device, and the like.

5) A Sidelink (SL) mainly refers to a link established between devices of the same type, and may also be referred to as a side link, a sidelink, an auxiliary link, or the like. The same type of device may be a link from a terminal device to a terminal device, a link from a base station to a base station, a link from a relay node to a relay node, and the like, which is not limited in this embodiment of the present application. The V2X technology is an application of the D2D technology in the internet of vehicles, or V2X is a specific D2D or sidelink technology. In the V2X scenario, the sidelink is a direct link connection between two V2X terminals, and the V2X terminal is a terminal with V2X functionality, such as the same type of device described above.

6) SL transmission, the data transmission of two V2X terminals on the sidelink, is called SL transmission.

Two V2X terminals may establish a sidelink connection before SL transmission. For example, the V2X terminal as the initiator sends a request for establishing a sidelink connection to the network device, and if the network device agrees to establish a sidelink connection with the V2X terminal, the network device sends configuration information for establishing a sidelink connection to the V2X terminal, and the V2X terminal establishes a sidelink connection with another V2X terminal according to the configuration information sent by the network device.

7) And a resource index including one or more of a slot index, a frequency domain resource index and an indication index of a sequence, the resource index indicating resources used in carrying data and/or control information. In this embodiment, the resource index corresponding to the first data is a first resource index, and the resource index corresponding to the feedback information of the first data is a second resource index.

8) Feedback resources including at least one of time domain resources, frequency domain resources, and sequence resources.

Time domain resources, including slots (slots), mini-slots (i.e., slots with a number of symbols less than the number of symbols of a full slot), symbols (symbols), or other time domain granularity (e.g., system frame, subframe), where a slot may include at least one symbol, e.g., 14 symbols, or 12 symbols.

In the 5G NR, one slot may be composed of at least one of symbols used for downlink transmission, symbols used for flexible transmission, symbols used for uplink transmission, and the like, so that the composition of slots is referred to as different Slot Formats (SFs), and there may be up to 256 slot formats.

The slots may have different slot types, and the different slot types include different numbers of symbols, for example, a mini slot (slot) includes less than 7 symbols, and a normal slot (slot) includes 7 symbols or 14 symbols. Each symbol length may be different according to the subcarrier spacing, and thus the slot length may be different.

In 5G NR, a time slot aggregation technique is also introduced, i.e. a network device can allocate a plurality of time slots to the same terminal for transmitting data. For example, the terminal may perform uplink data scheduling on the allocated multiple time slots, such as scheduling of a Physical Uplink Shared CHannel (PUSCH), or perform Downlink data scheduling on the allocated multiple time slots, such as scheduling of a Physical Downlink Shared CHannel (PDSCH).

The frequency domain resources include subchannels, bands (bands), carriers (carriers), BandWidth parts (BWPs), Resource Blocks (RBs), or Resource pools.

A sub-channel, which is the minimum unit of the frequency domain resource occupied by the physical sidelink shared channel, may include one or more Resource Blocks (RBs). The bandwidth of the wireless communication system in the frequency domain may include a plurality of RBs, for example, in each possible bandwidth of the LTE system, the number of PRBs included may be 6, 15, 25, 50, etc. In the frequency domain, one RB may include several subcarriers, for example, in the LTE system, one RB includes 12 subcarriers, wherein each subcarrier interval may be 15kHz, but of course, other subcarrier intervals may also be adopted, for example, 3.75kHz, 30kHz, 60kHz or 120kHz subcarrier intervals, which is not limited herein.

Sequence resources, also called code domain resources, are related parameters used to indicate sequences. For a random sequence, the parameters of the sequence include the start position of the sequence, the length of the sequence, and the initial value of the sequence; for low-bee-mean-ratio sequences (e.g., ZC (Zadoff-Chu) sequences), the parameters of the sequences include root sequences, masks, scrambling codes, Cyclic Shift (CS) or Orthogonal Cover Code (OCC), etc.

The initial value of a sequence refers to the initial value of a shift register that generates a sequence for a random sequence (e.g., Gold sequence, m-sequence).

The starting position of the sequence and the random sequence used in transmission satisfy: c (n) ═ c (n + a), n ═ 0,1,2, …, L-1, where c (n) is a random sequence used in transmission, a is the start position of the random sequence, L is the length of the random sequence, typically a is a non-negative integer, e.g., a is 0, or a is 2, etc., where n is an intermediate variable that determines each symbol of the sequence.

9) V2X data transmission method. In V2X, it is mainly the terminal device and the communication between the terminal devices. For the transmission mode between the terminal device and the terminal device, the current standard protocol supports a broadcast mode, a multicast mode, and a unicast mode.

The broadcasting mode is as follows: the broadcast method is that a terminal device serving as a transmitting end transmits data in a broadcast mode, and a plurality of terminal devices can receive Sidelink Control Information (SCI) from the transmitting end or data information carried on a Sidelink Shared Channel (SSCH). SCI candidates are also sometimes referred to as Scheduling Assignments (SA), and are equivalent in the present invention unless otherwise specified.

In the sidelink, the manner of ensuring that all terminal devices analyze the control information from the transmitting end is that the transmitting end does not scramble the control information, or the transmitting end scrambles the control information by using a scrambling code known to all terminal devices.

The multicast mode is as follows: the multicast mode is similar to broadcast transmission, and a group of terminal devices can analyze SCI or SSCH by using a multicast mode for data transmission.

A unicast mode: the unicast mode is a mode in which one terminal device transmits data to another terminal device, and the other terminal device does not need or cannot parse the data.

10) Feedback information: the feedback information required to be received by the terminal equipment is sent to the terminal equipment by other equipment, and the feedback information required to be sent by the terminal equipment is sent to other equipment by the terminal equipment. Wherein, the other devices may be other terminal devices or network devices. The specific feedback information includes Hybrid Automatic Repeat reQuest (HARQ) feedback information and the like. Optionally, when the present invention is used in the sidelink, the feedback information made on the data is generally used in a unicast or multicast transmission mode.

11) A Physical Sidelink Feedback Channel (PSFCH) is a Channel in which a terminal device carries Sidelink Feedback Control Information (SFCI) on a Sidelink (Sidelink) in a scenario that Feedback is needed.

12) ZC sequences, also known as Zadoff-Chu, Frank-Zadoff-Chu (fzc) sequences or Chu sequences, are one of the perfect sequences. This sequence has ideal periodic autocorrelation properties. The main parameters for generating the ZC sequence include one or more of a root sequence number of the sequence, a cyclic shift value, and an orthogonal cover code. The sequence used in the present invention may be a pseudo-random sequence, a ZC sequence, or other low peak ratio sequence (e.g., a length 6, 12, 18, 24 sequence as defined in the LTE or NR Rel-15 protocols).

13) Reference signals, physical signals carrying sequences are transmitted for specific functions. There are different types of reference signals depending on the function. When the reference signal is used to transmit the feedback information, the reference signal may be a demodulation reference signal used to carry the feedback information, or may be a sequence directly used to carry the feedback information. The reference signal is mainly used for transmitting feedback information for data, and the device sending the reference signal may be a first device sending the feedback information, may be a second device sending the first data, and may also be a device performing measurement or providing a synchronization source. The reference signal has the following uses: the method is used for data demodulation, Information bearing, Channel State Information (CSI), Radio Resource Management (RRM) or Radio Link Monitoring (RLM) measurement, synchronization, phase noise tracking, and the like. When carrying the feedback information, the reference signal may be carried by a sequence, or may be carried by control information coded bits in a feedback channel. Specifically, the Reference Signal may be a Demodulation Reference Signal (DMRS) used by a Physical downlink Shared Channel (PSCCH), and may be a Physical downlink Control Channel (PSCCH); when the Reference channel performs CSI, RRM or RLM measurement, the Reference Signal may be an RS, or a Sounding Reference Signal (SRS), or a CSI-RS; when the reference signal is synchronized, the reference signal may be a reference signal used by a Physical Sidelink Broadcast Channel (PSBCH) or the like. In addition, in the embodiment of the present application, the reference signal may also be a reference signal that is scrambled when used for data or control information transmission.

11) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "at least one" is to be understood as meaning one or more, for example one, two or more. For example, the inclusion of at least one means that one, two or more are included, and does not limit which is included. For example, at least one of A, B and C is included, then inclusion can be A, B, C, A and B, A and C, B and C, or A and B and C. Similarly, the understanding of the description of "at least one" and the like is similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first time slot and the second time slot, are only used for distinguishing different time slots, and are not used for limiting the priority, importance degree, etc. of the two time slots.

In order to facilitate understanding of the embodiments of the present application, an application scenario of the present application is described below.

The internet of things is a network extending and expanding on the basis of the internet provided by a communication system, and any object or process needing monitoring, connection and interaction is acquired through various devices and technologies such as various information sensors, radio frequency identification technologies, global positioning systems, infrared sensors, laser scanners and the like, and ubiquitous connection between objects and people is realized through various possible network accesses. In short, the core and the foundation of the internet of things are still the internet, and the internet is a network extending and expanding on the basis of the internet, and a user side of the internet extends and expands to information exchange and communication between any objects.

The application field of the internet of things relates to aspects such as application in intelligent transportation, and with the industrial development of traffic informatization and intelligent transportation, the concept of the internet of vehicles is proposed. The internet of vehicles mainly means that vehicle-mounted equipment on a vehicle effectively routes dynamic information of all vehicles in an information network platform through a wireless communication technology, provides different functional services in the vehicle-associated operation, and aims to improve the safety and the automatic driving of the vehicle and improve the traffic efficiency. The implementation of the car networking mainly depends on a V2X technology, and the core of the V2X technology lies in implementing the interconnection of car associations and everything, and is mainly applied to a car-to-outside (V2X) scenario, where the V2X specifically includes four application scenarios, namely a car-to-car (V2V), a car-to-Pedestrian (V2P), a car-to-roadside Infrastructure (V2I), and a car-to-Network (V2N). V2V refers to inter-vehicle communication; V2P refers to vehicle-to-person communication (including pedestrians, cyclists, drivers, or passengers); V2I refers to vehicle to Road Side Unit (RSU) communication and V2N refers to vehicle to base station/network communication.

Fig. 2 is a schematic diagram of an application scenario, where the application scenario shown in fig. 2 is a V2X scenario, the scenario includes an in-vehicle device (including, as shown in fig. 2, UE1, UE2, and UE3), a roadside unit (including, as shown in fig. 2, RSU1), a base station device (including, as shown in fig. 2, eNB, gNB, and the like), and a global navigation satellite system (including, as shown in fig. 2, GNSS), and each device in the scenario may be one or more. The vehicle-mounted equipment can communicate with each other, information exchange and information sharing are achieved, and the vehicle-mounted equipment can be used for judging road traffic conditions, wherein the vehicle-mounted equipment comprises vehicle position, running speed and other vehicle connection state information. The RSU may communicate with various on-board devices and/or base station devices and may be used to detect road surface conditions and guide the vehicle to select the optimal travel path. The base station equipment is communicated with each vehicle-mounted equipment and/or RSU, and the GNSS can provide positioning time service information for other network elements. In addition, the vehicle-mounted equipment in the internet of vehicles can also communicate with people, and specific users can communicate with the vehicles through wireless communication means such as Wi-Fi, Bluetooth and honeycomb, so that the users can monitor and control the vehicles through corresponding mobile terminal equipment. The base station device in fig. 2 is optional, and if there is a base station device, there is a network coverage scenario; if the base station device is not provided, the network coverage-free scene is determined.

The devices can communicate with each other through a sidelink and an uplink and a downlink, and the communication can use a frequency spectrum of a cellular link or an intelligent traffic frequency spectrum near 5.9 GHz. The technology by which devices communicate with each other may be enhanced based on communication network protocols, such as the LTE protocol, and may be enhanced based on the D2D technology.

In the V2X technology being studied by 3GPP, it is required to support highly reliable transmission of data. To achieve high reliability of the entire transmission, it is necessary to support both high-reliability transmission of control information and high-reliability transmission of data. For example, V2X is required to achieve an end-to-end transmission delay of no more than 3ms, and URLLC is required to achieve an end-to-end delay of no more than 10 ms. In terms of reliability, V2X is required to reach 99.999%. Therefore, how to realize low-time-frequency and high-reliability transmission is a key technology in 5G. In order to achieve highly reliable transmission, a feasible way is that the receiver makes corresponding feedback for the data sent by the transmitter, thereby ensuring high reliability of the communication link. A common communication scenario is shown in fig. 3, where a device 1 sends data information to a device 2, where the device 1 is equivalent to a transmitter and the device 2 is equivalent to a receiver; after receiving the data information, the device 2 sends feedback information for the data information to the device 1, where the device 1 corresponds to a receiver and the device 2 corresponds to a transmitter. When the device 2 feeds back the data information sent by the device 1, the feedback is performed on the determined feedback resource according to a set feedback period, where the feedback period of the feedback information is N, which means that feedback information on N consecutive time slots is fed back on the feedback resource of one time slot, and N is a positive integer greater than or equal to 1, for example, N is 1, N is 2, or N is 4. When the receiver (as a feedback transmitter) performs feedback, the feedback is performed on the determined feedback resource according to a set feedback period. As shown in fig. 1, each time slot has a feedback resource with a feedback period N ═ 1; the feedback period N-2 means that one time slot has a feedback resource every two time slots; the feedback period N-4 means that there is a feedback resource in one time slot every four time slots. Therefore, when the feedback period N of the data packet is greater than 1, feedback information corresponding to data in consecutive time slots (e.g., N time slots) may appear on the feedback resource of the same time slot, which causes a collision between the feedback resources, reduces the reliability of transmission of the feedback information, and reduces the reliability of the communication link.

In view of this, in order to solve the conflict generated between the feedback resources during the feedback information and efficiently and accurately transmit the feedback information, the present application provides a feedback information transmission method to determine the feedback resources (including one or more of time domain resources, frequency domain resources, and sequence resources) of the feedback information, so as to reduce or avoid the conflict generated by the feedback information of consecutive multiple time slots on the feedback resources of the same time slot.

The embodiment of the present application provides a feedback information transmission method, which may be applied to the scenario shown in fig. 2, or may be applied to other scenarios where a feedback resource may conflict with each other, and a specific process of the feedback information transmission method is described in detail below with reference to fig. 4. As shown in fig. 4, the process includes:

step 401: the second device sends the first data to the first device. The first data includes one or more of a data packet, indication information, control information, and the like.

The second device may also be referred to as a transmitter of the first data.

Specifically, the second device determines a first resource for transmitting the first data, and transmits the first data through the first resource. Illustratively, the first resource includes one or more of a first time slot in which the first data is located (or a first time slot occupied by the first data), a first frequency domain resource in which the first data is located (or a first frequency domain resource occupied by the first data), and a first sequence resource for carrying the first data. The first resource may be uniquely identified by a first resource index (denoted by n in the embodiment of the present application), for example, the first slot in which the first data is located may be uniquely identified by a first slot index, and the first frequency domain resource in which the first data is located may be used for the first frequency domain resource index (denoted by F in the embodiment of the present application)_subc(n) represents) to uniquely identify.

Step 402: the first device receives first data.

The first device may also be referred to as a receiver of the first data.

Specifically, the first device determines a first resource for receiving the first data by the user, and receives the first data through the first resource.

Step 403: and the first equipment determines the feedback resource of the feedback information corresponding to the first data. The feedback information corresponding to the first data is feedback information aiming at the first data and sent by the first device. The feedback information is used for feeding back positive acknowledgement or negative acknowledgement, or the feedback information is only used for feeding back positive acknowledgement, or the feedback information is only used for feeding back negative acknowledgement. In the embodiment of the present application, the positive acknowledgement may also be referred to as ACK, and the negative acknowledgement may also be referred to as NACK. The feedback resources of the feedback information include one or more of time domain resources, frequency domain resources, and sequence resources.

Specifically, the first device determines a feedback resource of the feedback information corresponding to the first data according to a first resource index of the first data.

The first device may determine the time domain resource of the feedback information by: the first device determines a second slot index (denoted by m in the embodiment of the present application) of the feedback information according to the first slot index where the first data is located and the feedback period N. The second time slot index of the feedback information is used for uniquely identifying the second time slot where the feedback information is located, and the second time slot where the feedback information is located is the second time slot occupied by the feedback information.

The first device may determine the frequency domain resource of the feedback information by: the first device determines a second frequency domain resource index (in this application, F is used) of the feedback information according to the first frequency domain resource index where the first data is located_SFCI(m) represents). The second frequency domain resource index of the feedback information is used for uniquely identifying the second frequency domain resource where the feedback information is located, and the second frequency domain resource where the feedback information is located is the second frequency domain resource occupied by the feedback information.

The first device may determine the sequence resource of the feedback information by: and the first equipment determines the sequence of the feedback information according to the first time slot index and/or the first frequency domain resource index where the first data is located. The sequence of the feedback information is a second sequence resource for carrying the feedback information.

The first device may reduce or avoid collision of feedback information of consecutive multiple time slots on the feedback resource of the same time slot by determining different feedback resources, that is, at least one of a time domain resource, a frequency domain resource, and a sequence of the feedback information of multiple time slots determined by the first device is different, and detailed procedures are described in the following embodiments.

Step 404: and the first equipment sends the feedback information through the feedback resource.

Specifically, the first device sends the feedback information in the sequence at a second time-frequency position of the feedback information, where the time-frequency position of the feedback information is a second time slot where the feedback information is located and a second frequency-domain resource where the feedback information is located, and the sequence is the sequence of the feedback information determined in the step 403.

Step 405: and the second equipment determines the feedback resource of the feedback information corresponding to the first data.

The process of determining the feedback resource of the feedback information by the second device is the same as the process of determining the feedback resource of the feedback information by the first device, which may refer to step 403, and is not described herein again.

Wherein, the sequence of step 405 and step 403 is not limited.

Step 405: and the second equipment receives the feedback information through the feedback resource.

Specifically, the second device receives the feedback information through the sequence at a second time-frequency position of the feedback information.

According to the scheme provided by the embodiment of the application, for the first data transmitted in different time slots, when the feedback information of the first data is in the same time slot for feedback, at least one of time domain resources, frequency domain resources and sequence resources in the feedback resources occupied by the feedback information are different, the first device determines different feedback resources for the feedback information on N continuous time slots in the same feedback period according to the resource index of the first data, and transmits the feedback information through the different feedback resources, so that the method reduces or solves the conflict between the feedback resources, and ensures the efficient and accurate transmission of the data.

On the basis of fig. 4, the embodiment of the present application describes in detail the determination process of the feedback resource of the feedback information, so as to determine different feedback resources.

In the first embodiment, the frequency domain feedback resources on the time slot where the feedback information is located are divided into at least two feedback resource subsets, that is, the frequency domain feedback resources on the time slot where the feedback information is located include at least two feedback resource subsets, and specifically, the time slot where the feedback information is located is the second time slot where the feedback information is located. The at least two feedback resource subsets include a first feedback resource subset, that is, the first feedback resource subset is one of the at least two feedback resource subsets, and the second frequency domain resource where the feedback information is located belongs to the first resource feedback subset.

Optionally, the second frequency domain Resource where the feedback information is located has the same unit (also referred to as granularity) as the first frequency domain Resource where the first data is located, and for example, the second frequency domain Resource and the first frequency domain Resource are all Physical Resource Blocks (PRBs). Or the unit of the second frequency domain resource where the feedback information is located is different from the unit of the first frequency domain resource where the first data is located, for example, one is a sub-channel and the other is a PRB, that is, the unit of the second frequency domain resource where the feedback information is located is a sub-channel and the unit of the first frequency domain resource where the first data is located is a PRB, or the unit of the second frequency domain resource where the feedback information is located is a PRB and the unit of the first frequency domain resource where the first data is located is a sub-channel.

For example, if the unit of the second frequency domain resource where the feedback information is located is the same as the unit of the first frequency domain resource where the first data is located, the second frequency domain resource index may include an index of a feedback resource subset of the second frequency domain resource index on the time slot where the feedback information is located, that is, the second frequency domain resource is the same as the first feedback resource subset, and the second frequency domain resource index is an index of the first feedback resource subset.

For another example, if the second frequency-domain Resource in which the feedback information is located is in a unit different from that of the first frequency-domain Resource in which the first data is located, the second frequency-domain Resource index may include a second frequency-domain Resource index in the feedback Resource subset, that is, the second frequency-domain Resource index is part of the first feedback Resource subset, and the second frequency-domain Resource index includes an index of a sub-channel, a PRB, or a Resource Element (RE) in the first feedback Resource subset.

The feedback resource subset includes PRBs or REs, and the feedback resource subset includes consecutive PRBs or REs for carrying information, or discontinuous PRBs or REs for carrying information at equal intervals in the frequency domain, for detailed description, refer to the following embodiments. When carried with discontinuous resources (i.e., resources with intervals) within the feedback resources, the index of the second frequency-domain resource may be an index indicating a corresponding RE and/or PRB.

The method for dividing the frequency domain feedback resources on the time slot where the feedback information is located into at least two feedback resource subsets comprises at least the following implementation modes:

in one implementation manner, the at least two feedback resource subsets are N feedback resource subsets, and different feedback resource subsets correspond to feedback resource positions where the first data on different time slots are located. That is, the number of the at least two feedback resource subsets is N, that is, the number of the at least two feedback resource subsets is the same as the value corresponding to the feedback period.

To explain with the feedback period N being 4, when the feedback period N is 4, feedback resources of feedback information on consecutive 4 slots are mapped to the same feedback slot.

And the feedback resource position of the feedback information corresponding to each first data corresponds to each feedback resource subset one by one. As shown in fig. 5, first time slots in which first DATA are located are 0,1,2, 3, and 4, where time slots 1 to 4 are time slots in the same feedback cycle, all of time slots 0 to 4 are first time slots in which first DATA (DATA) is located, a second time slot in which feedback information corresponding to the first DATA is located is time slot 4, for example, m is 4, in a feedback cycle in which time slots 1 to 4 are located, feedback information corresponding to the first DATA of time slot 1 is fed back on first feedback resource subset 1, feedback information corresponding to the first DATA of time slot 2 is fed back on first feedback resource subset 2, feedback information corresponding to the first DATA of time slot 3 is fed back on first feedback resource subset 3, and feedback information corresponding to the first DATA of time slot 4 is fed back on first feedback resource subset 4.

Or, considering that there is a processing delay (denoted by K in this embodiment) when the first device processes data, the first data of each slot needs to send feedback at a closest slot after the processing delay K of the slot where the first data is located, that is, m > ═ n + K, where K is a minimum time interval from when the first device receives the first data to when the feedback information is sent, and a unit of the processing delay K may be a slot or a symbol or milliseconds (ms). As shown in fig. 6, it is assumed that K is 1, the first time slots in which the first DATA is located are 0,1,2, 3, and 4, where time slots 1 to 4 are time slots in the same feedback period, and time slots 0 to 4 are all the first DATA (in the example of fig. 5, SA and DATA are included, but SA portions are optional, the present invention does not impose that SA that is simultaneously transmitted occurs when DATA is transmitted), because the processing time delay K is 1, the second time slot in which the feedback information corresponding to the first DATA in time slots 0 to 3 is located is time slot 4, that is, m is 4, the feedback information corresponding to the first DATA in time slot 0 is fed back on the first feedback resource subset 1, the feedback information corresponding to the first DATA in time slot 1 is fed back on the first feedback resource subset 2, and the feedback information corresponding to the first DATA in time slot 2 is fed back on the first feedback resource subset 3, feedback information corresponding to the first data of the time slot 3 is fed back on the first feedback resource subset 4, and feedback information corresponding to the first data of the time slot 4 is fed back in the next feedback period.

As shown in fig. 6, there may be a case where the first data in a plurality of different frequency domain positions corresponds to the frequency domain feedback resource in which the same feedback information is located; the multiple pieces of feedback information share one same feedback resource, which may cause collision among the feedback information, so for this situation, the sequence resource of the feedback information of the first data may also be determined, thereby implementing code division multiplexing among the feedback information corresponding to the multiple pieces of data on the same feedback resource in a code division manner, thereby avoiding collision among the feedback resources. See the subsequent embodiments for a detailed procedure for determining sequence resources. The example of fig. 6 includes SA and DATA, but the SA portion is optional and the present invention does not enforce that there must be simultaneous SA occurrences when DATA is sent.

Or, the feedback resource position of the feedback information corresponding to each first data corresponds to the second frequency domain resource in each feedback resource subset one to one. The second frequency domain resource where the feedback information is located is different from the first frequency domain resource where the first data is located in unit, and the second frequency domain resource index may include a second frequency domain resource index in the feedback resource subset, that is, the second frequency domain resource is a part of the first feedback resource subset.

The number of sub-channels occupied by the first data and the number of frequency domain positions occupied by the feedback information do not correspond to each other.

For example, the unit of the first frequency domain resource where the first data is located is a subchannel, the size of one subchannel is multiple PRBs, such as 4 PRBs, 5 PRBs, 6 PRBs, or 10 PRBs, and the unit of the second frequency domain resource where the feedback information is located is one PRB, or a position discretely placed according to REs in the frequency domain, or a bandwidth occupied by the PSFCH is 10 PRBs and is placed according to equally spaced REs.

Optionally, as shown in fig. 7, the number of frequency domain positions occupied by the feedback information is greater than the number of subchannels occupied by the first data. For example, the first data occupies Md subchannels (e.g., Md is 10, 20, or 30, etc.), and the number of frequency domain positions occupied by the feedback information is Mf (e.g., Mf is 8, 10, 12, 20, 40, or 100, etc.).

For example, if the frequency domain location occupied by the feedback information is within one feedback resource subset, the second frequency domain resource index comprises the second frequency domain resource index within the feedback resource subset.

As yet another example, the feedback information occupies a frequency domain location that is over the bandwidth of the entire frequency domain resource.

In another implementation, the at least two subsets of feedback resources correspond to at least two different feedback modes, the at least two different feedback modes including at least two (i.e., a plurality of) of: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements. Feedback-only acknowledgments mean that a correct acknowledgement ACK is sent when the receiver of the data correctly detects the data, and no acknowledgement is sent when the receiver of the data does not correctly detect the data or decodes the data in error. Accordingly, feeding back only negative acknowledgements means that no acknowledgement is sent when the receiver of the data correctly detects the data; and when the receiver of the data detects a data decoding error, a negative acknowledgement NACK is sent. The feedback positive acknowledgement or negative acknowledgement means that when a receiver of data correctly detects the data, a correct positive acknowledgement ACK is sent and received; and when the receiver of the data detects a data decoding error, a negative acknowledgement NACK is sent.

Specifically, the at least two different feedback modes include: feeding back only positive acknowledgements, and feeding back positive acknowledgements or negative acknowledgements; alternatively, the first and second electrodes may be,

the at least two different feedback modes include: feeding back only positive acknowledgements, and feeding back only negative acknowledgements; alternatively, the first and second electrodes may be,

the at least two different feedback modes include: feeding back positive or negative acknowledgements, and feeding back only negative acknowledgements; alternatively, the first and second electrodes may be,

the at least two different feedback modes include: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

Illustratively, the first device determines a first feedback resource subset of the feedback information according to a feedback mode of the feedback information corresponding to the first data. For example, if the at least two different feedback manners include feedback-only positive acknowledgement and feedback positive acknowledgement or negative acknowledgement, the feedback manner of the feedback information corresponding to the first data is feedback-only positive acknowledgement, and the first device determines that the first feedback resource subset corresponding to the feedback-only positive acknowledgement is the first feedback resource subset of the feedback information.

On the basis of dividing the frequency domain feedback resources on the time slot where the feedback information is located into at least two feedback resource subsets, the first device determines a second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located.

Specifically, the determining, by the first device, the second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located includes:

the first device determines a second frequency domain resource index of feedback information corresponding to the first data according to a first frequency domain resource index where the first data is located and a first parameter, wherein the first parameter includes one or more of the following: the feedback method includes a feedback period N, a first slot index N of the first data, a preset first value (denoted by a in this embodiment), a second slot index where feedback information corresponding to the first data is located, a frequency domain offset value (denoted by offset in this embodiment), a feedback delay K of the first device, and a total number of frequency domain feedback resources (denoted by M in this embodiment) on a slot where the feedback information is located, where the feedback delay K is a minimum time interval from when the first device receives the first data to when the feedback information is sent, and the total number of frequency domain feedback resources M is a total number of feedback subchannels on the slot where the feedback information is located, or a total number of feedback subchannels in a feedback resource subset obtained by dividing the slot where the feedback resource of the feedback information is located.

Optionally, the frequency domain offset value may be a specific frequency domain offset value configured in advance, or may be a frequency domain offset value corresponding to a time slot position where the first data is located, that is, a frequency domain offset value corresponding to different time slot mappings, that is, a frequency domain offset value of the feedback information is related to a first time slot where the first data corresponding to the feedback information is located.

The size of the frequency domain offset value offset is related to the granularity of the REs or PRBs of the feedback resource. The Offset may be predefined, may be pre-configured, or may be directly configured by the base station to the first device.

If the frequency domain offset value offset is related to the time slot position of the first data, different time slots map different offset values, and the frequency domain positions of the sub-channels on adjacent time slots are not aligned one by one, so that the second frequency domain resources of the feedback information are different from each other, and the overlapping between the feedback resources is avoided. As shown in fig. 8, the second frequency domain resources of the feedback information of Data1 on slot n, Data1 on slot n +1, and Data1 on slot n +2 are not aligned.

In an implementation manner, the first device determines, according to the first frequency domain resource index where the first data is located and the frequency domain offset value, the second frequency domain resource index of the feedback information corresponding to the first data, that is, the sub-channel of each time slot on the adjacent time slot corresponding to the first device is placed according to the corresponding offset when the frequency domain is placed.

In another implementation manner, the first device determines a third frequency domain resource index according to the first frequency domain resource index where the first data is located and the first parameter, and the first device determines a second frequency domain resource index of the feedback information corresponding to the first data according to the third frequency domain resource index.

The first device may determine the third frequency domain resource index of the feedback information according to the first frequency domain resource index where the first data is located and the first parameter in any one of the following manners:

1.1.1, the first device determines a third frequency domain resource index according to the ratio of the first frequency domain resource index to the feedback period N.

The approach may compress a first frequency domain resource of the first data over the time slot N according to the feedback period N to map to one of at least two subsets of feedback resources. For example, the third frequency domain resource index is (F)_subc(N) + a)/N. Wherein, F_subc(n) an index on time slot n for the first frequency domain resource; a is an integer, and as an alternative embodiment, a may take a value of 0. In the present invention, F, unless otherwise specified_subcThe meaning of (n) is the same as in this embodiment. Optionally, N is a positive integer, e.g., 1,2, 4, etc.

1.1.2, the first device determines a third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N, the feedback period N and the first frequency domain resource index.

Compared with the above mode 1.1.1, this mode may compress the first frequency domain resource of the first data in the time slot N according to the feedback period N, and map forward from the last of the at least two feedback resource subsets, for example, mapping the feedback information corresponding to the first data in the first time slot to the last second frequency domain resource in the at least two feedback resource subsets. For example, the third frequency domain resource index is (m-n) ((m-n))(F_subc(n)+a)/N)。

1.1.3, the first device determines a third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N, the feedback time delay K, the feedback period N and the first frequency domain resource index.

In this method, the influence of the processing delay K is considered compared with the above-described method 1.1.1 and method 1.1.2.

1.1.4, the first device determines the third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N and the ratio of the first frequency domain resource index to the feedback period N.

For example, the third frequency domain resource index is (m-n) ((F)_subc(N) + a)/N), or a third frequency domain resource index of (N + N-m +1) ((F)_subc(N) + a)/N). Compared with the formula in the above mode 1.1.2, in this mode, the first frequency domain resource of the first data in the time slot N is compressed according to the feedback cycle N, and is mapped backward from the first of the at least two feedback resources, for example, the feedback information corresponding to the first data in the first time slot is mapped to the first second frequency domain resource in the at least two feedback resource subsets.

1.1.5, the first device determines a third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N, the feedback time delay K, and the ratio of the first frequency domain resource index to the feedback period N.

In this way, the influence of the processing delay K is taken into account, compared to the way 1.1.4 described above. For example, the third frequency domain resource index is (m-n-K +1) ((F)_subc(N) + a)/N), or a third frequency domain resource index of (N + N-m + K) ((F)_subc(n)+a)/N)。

1.1.6, the first device determines a third frequency domain resource index according to the first time slot index n, the first frequency domain resource index and the frequency domain offset value.

The frequency domain offset value may be a pre-configured specific frequency domain offset value.

E.g. the third frequency domain resource index is F_subc(n) + n × offset, or the third frequency domain resource index is F_subc(n) + (m-n) offset, or the third frequency domain resource index is F_subc(n) + (m-n-K +1) × offset, or the third frequency domain resource index is F_subc(N) + (N + N-m +1) × offset, or the third frequency domain resource index is F_subc(n)+(N+n-m+K)*offset。

On the basis of determining the third frequency domain resource index of the feedback information, the first device determines a second frequency domain resource index according to the third frequency domain resource index by one of the following methods:

1.2.1, the first device determines the third frequency domain resource index as the second frequency domain resource index.

1.2.2, the first device performs modulus extraction on the total number M of the frequency domain feedback resources by the third frequency domain resource index, and determines the second frequency domain resource index according to a modulus extraction result.

In the method, the determined position of the second frequency domain resource can be prevented from exceeding the total number of the frequency domain feedback resources by taking the modulus of the total number M of the frequency domain feedback resources on the feedback time slot.

For example, on the basis of the above-described mode 1.1.1, the second frequency domain resource index is mod ((F)_subc(n)+a)/N,M)。

For example, based on the above-mentioned mode 1.1.2, the second frequency domain resource index is (m-n) × mod ((F)_subc(n)+a)/N,M)。

For example, based on the above-mentioned mode 1.1.4, the second frequency domain resource index is (m-n) × mod ((F)_subc(N) + a)/N, M), or the second frequency domain resource index is (N + N-M +1) × mod ((F + M) ((M)_subc(n)+a)/N),M)。

For example, based on the above-mentioned mode 1.1.5, the second frequency-domain resource index is (m-n-K +1) × mod (Floor ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (N + N-M + K) × mod (Floor ((F)_subc(n)+a)/N),M)。

For example, on the basis of the above-described mode 1.1.6, the second frequency domain resource index is mod (F)_subc(n) + n × offset, M), or the second frequency domain resource index is mod (F)_subc(n) + (M-n) × offset, M), or the second frequency domain resource indexIs mod (F)_subc(n) + (M-n-K +1) × offset, M), or the second frequency domain resource index is mod (F)_subc(N) + (N + N-M +1) × offset, M), or the second frequency domain resource index is mod (F)_subc(n)+(N+n-m+K)*offset,M)。

1.2.3 the first device rounds the third frequency domain resource index upwards, and determines the second frequency domain resource index according to the round-up result. ceil (x), which represents rounding up on the logarithm x.

For example, on the basis of the above-mentioned mode 1.1.1, the second frequency domain resource index is ceil ((F)_subc(n)+a)/N)。

For example, based on the above-mentioned manner 1.1.2, the second frequency domain resource index is (m-n) × ceil ((F)_subc(n)+a)/N)。

For example, based on the above-mentioned manner 1.1.4, the second frequency domain resource index is (m-n) × ceil ((F)_subc(N) + a)/N), or the second frequency domain resource index is (N + N-m +1) × ceil ((F + m +1) × ceil_subc(n)+a)/N)。

For example, based on the above-mentioned manner 1.1.5, the second frequency domain resource index is (m-n-K +1) × ceil ((F)_subc(N) + a)/N), or the second frequency domain resource index is (N + N-m + K) × ceil ((F + m + K))_subc(n)+a)/N)。

For example, on the basis of the above-mentioned manner 1.1.6, the second frequency domain resource index is mod (ceil (F)_subc(n) + n × offset), M), or the second frequency domain resource index mod (ceil (F)_subc(n) + (M-n) × offset), M), or the second frequency domain resource index is mod (ceil (F)_subc(n) + (M-n-K +1) × offset), M), or the second frequency domain resource index is mod (ceil (F)_subc(N) + (N + N-M +1) × offset), M), or the second frequency domain resource index is mod (ceil (F)_subc(n)+(N+n-m+K)*offset,M))。

1.2.4 the first device rounds the third frequency domain resource index down, and determines the second frequency domain resource index according to the round-down result. Floor (x), which means that the logarithm x is rounded down.

For example, in the above-described mode 1.1.1, the second frequency-domain resource index is Floor ((F)_subc(n)+a)/N)。

For example, based on the above-mentioned mode 1.1.2, the second frequency-domain resource index is (m-n) × Floor ((F)_subc(n)+a)/N)。

For example, based on the above-mentioned mode 1.1.4, the second frequency-domain resource index is (m-n) × Floor ((F)_subc(N) + a)/N), or the second frequency domain resource index is (N + N-m +1) × (F)_subc(n)+a)/N)。

For example, based on the above-mentioned mode 1.1.5, the second frequency-domain resource index is (m-n-K +1) × Floor ((F)_subc(N) + a)/N), or the second frequency domain resource index is (N + N-m + K) × (F)_subc(n)+a)/N)。

For example, in the above-described mode 1.1.6, the second frequency-domain resource index is Floor (F)_subc(n) + n × offset), or the second frequency domain resource index is Floor (F)_subc(n) + (m-n) × offset), or the second frequency domain resource index is Floor (F)_subc(n) + (m-n-K +1) × offset), or the second frequency-domain resource index is Floor (F)_subc(N) + (N + N-m +1) × offset), or the second frequency domain resource index is Floor (F)_subc(N) + (N + N-m + K) × offset). Optionally, the offset is an integer. Alternatively, the offset may take the value 1.

Alternatively, mode 1.2.2 may be used in combination with mode 1.2.3, or mode 1.2.2 may be used in combination with mode 1.2.4.

For example, the mode 1.2.2 is used in combination with the mode 1.2.3, and the second frequency domain resource index is mod (ceil ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (M-N) × mod (ceil ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (N + N-M +1) × mod (ceil ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (M-N-K +1) × mod (ceil ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (N + N-M + K) × mod (ceil ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is mod (ceil (F)_subc(n) + n × offset), M), or the second frequency domain resource index mod (ceil (F)_subc(n) + (M-n) × offset), M), or the second frequency domain resource index is mod (ceil (F)_subc(n) + (M-n-K +1) × offset), M), or the second frequency domain resource index is mod (ceil (F)_subc(n)+(N+n-m+1)*offset),M)，Or the second frequency domain resource index is mod (ceil (F)_subc(N) + (N + N-M + K) × offset), M). Optionally, the offset is an integer. Alternatively, the offset may take the value 1.

For example, the mode 1.2.2 is used in combination with the mode 1.2.4, and the second frequency domain resource index is mod (Floor ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (M-N) × mod (Floor ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (N + N-M +1) × mod (Floor ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (M-N-K +1) × mod (Floor ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is (N + N-M + K) × mod (Floor ((F)_subc(N) + a)/N), M), or the second frequency domain resource index is mod (Floor (F)_subc(n) + n × offset), M), or the second frequency domain resource index mod (Floor (F)_subc(n) + (M-n) × offset), M), or the second frequency domain resource index is mod (Floor (F)_subc(n) + (M-n-K +1) × offset), M), or the second frequency domain resource index is mod (Floor (F)_subc(N) + (N + N-M +1) × offset), M), or the second frequency domain resource index is mod (Floor (F)_subc(N) + (N + N-M + K) × offset), M). Optionally, the offset is an integer. Alternatively, the offset may take the value 1.

In another implementation manner, if the unit of the second frequency domain resource where the feedback information is located is different from the unit of the first frequency domain resource where the first data is located, the first device may further determine the feedback information feedback resource by:

the first equipment determines the frequency domain position of the sub-channel where the feedback information is located according to the frequency domain position of the sub-channel where the first data is located;

and the first equipment determines the position of the PRB of the feedback information in the sub-channel according to the time slot position of the first data and the frequency domain position of the sub-channel of the feedback information.

Optionally, the frequency domain position of the sub-channel where the first data is located may be a start position, a middle position, an end position, or the like of the sub-channel where the first data is located.

For example, the frequency domain position F of the sub-channel where the feedback information is located_SFCI(m,sub)＝F_subc(n) + i, or F_SFCI(m,sub)＝mod(F_subc(n)+i,Mf)。

Position F of PRB of feedback information in sub-channel_SFCI(m,sub,PRB)＝f(n)+F_SFCI(m,sub)。

Where f (n) is a function of time slot n, e.g.: f (N) ═ j, or f (N) ═ j (m-N), or f (N) ═ j (m-N-K +1), or f (N) ═ j (N + N-m +1), or f (N) ═ N + m + K, where j is an integer, for example, j ═ 1,2,3,4, or 12/N, where N is the period of the feedback resource.

And secondly, performing code division on the feedback resources, namely determining sequence parameters according to the first time slot index and/or the first frequency domain resource index, and determining different sequences according to the determined different sequence parameters, so as to reduce or solve the conflict between the feedback resources.

In one implementation manner, different feedback information values correspond to different sequence parameters, and the first device determines a sequence carrying the feedback information according to the sequence parameters corresponding to the feedback information values. For example, different contents of feedback information feedback correspond to different feedback information values, for example, a feedback information value corresponding to a feedback information feedback only positive acknowledgement is 00, a feedback information value corresponding to a feedback information feedback only negative acknowledgement is 01, when a feedback information feedback positive acknowledgement or negative acknowledgement is provided, the feedback information value corresponding to the feedback positive acknowledgement is 10, and the feedback information corresponding to the feedback negative acknowledgement is 11. Optionally, one or more sequence parameters of the generated sequence are determined according to different feedback states or values. In the embodiments of the present application, the sequence parameters are also referred to as sequence parameters.

In another implementation, the first device carries the feedback information in a spread spectrum manner on the sequence, thereby determining the sequence carrying the feedback information. When the feedback resources are the same, the feedback resources can be distinguished through sequences so as to solve conflicts among the feedback resources.

As shown in fig. 9, feedback information corresponding to first data in consecutive N time slots multiplexes one and the same frequency domain resource, and conflicts between feedback resources can be resolved by determining different sequence feedback data.

Specifically, the determining, by the first device, the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency domain resource index where the first data is located includes:

the first equipment determines a sequence parameter of a feedback information sequence corresponding to the first data according to a first time slot index and/or a first frequency domain resource index where the first data is located; the first device determines a sequence carrying the feedback information according to the sequence parameters, wherein the sequence parameters include one or more of the following: an initial value of the sequence; the initial position of the sequence; a root sequence number of the sequence; cyclic shift values CS of the sequences; and the orthogonal cover code OCC of the sequence.

The first device specifically determines a sequence of feedback information corresponding to the first data by any one of the following methods:

2.1, determining, by the first device, a sequence parameter of a sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency domain resource index where the first data is located includes:

the first device determines a root sequence number of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a second parameter, where the second parameter includes one or more of the following: a preset second value (denoted by b in the embodiment of the present application), the second slot number m, the number of root sequence numbers (denoted by Mu in the embodiment of the present application), and a second frequency-domain resource index of the feedback information. The number of root sequence numbers is the total number of available root sequence numbers, and the preset second value may be an integer.

For example, the root sequence number of the sequence is mod (F)_subc(n, Mu), or the root sequence number of the sequence is mod (F)_subc(n) + b, Mu), or the root sequence number of the sequence mod (F)_subc(n)+F_SFCI(m), Mu), or the root sequence number of the sequence is mod (F)_subc(n)+F_SFCI(m) + b, Mu), or the root sequence number of the sequence is mod (m + F)_subc(n, Mu). Optionally, b is an integer, and b may take a value of 0.

2.2, the first device determines the sequence group hop and/or the sequence hop according to any one of the modes 2.1 for determining the sequence parameter, and then generates a root sequence number according to the sequence group hop and/or the sequence hop.

E.g. u ═ f_gh+f_ss+g₁(x) Mod30, where the root sequence number is u.

This approach may be primarily directed to low PAPR sequences, such as ZC sequences.

For example, sequence group hopping f_ghIs composed of

Sequence jump f_ssAre respectively f_ss＝(n_ID+g₃(x))mod3。

For example, sequence group hopping f_ghIs composed of

Sequence jump f_ssAre respectively f_ss＝(n_ID+g₃(x))mod3。

Where g1(x), g2(x) and g3(x) can be determined in manner 2.1, c is a random sequence,

is the time slot number corresponding to the subcarrier spacing mu, m is the time slot number, n_hopAnd indicating information representing frequency hopping, wherein the value is 1 during frequency hopping, and otherwise, the value is 0.

In the method, the root sequence number is generated through the sequence group jump and the sequence jump, and the sequence can be further spread, so that the conflict between feedback resources is further solved, and n_IDA configured or predefined identity for the base station, or an identity of the transmitter, or an identity of the receiver.

2.3, determining, by the first device, a sequence parameter of a sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency domain resource index where the first data is located includes:

the first device determines a cyclic shift value and/or an orthogonal cover code of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a third parameter, where the third parameter includes one or more of the following: a preset third value (denoted by c in the embodiment of the present application), the second timeslot number m, the number of cyclic shift values (denoted by Mc in the embodiment of the present application), the number of orthogonal cover codes (denoted by Mo in the embodiment of the present application), the feedback period N, the second frequency domain resource index, and the feedback delay K. The number of cyclic shift values is the total number of available cyclic shift values, and is, for example, 4, 6, 8, 12, etc., and the preset third value may be a positive integer, for example, c ═ 1, c ═ 2, c ═ 3, c ═ 6, etc.

For example, the cyclic shift value of the sequence is F_subc(n) c, or a cyclic shift value of the sequence of (F)_subc(n)+F_SFCI(m)). c, or a cyclic shift value of the sequence of (F)_subc(n) + d) c, or the cyclic shift value of the sequence is (F)_subc(n)+F_SFCI(m) + d) c. Wherein d is a preset fifth value, and the preset fifth value may be an integer. Optionally, c and d are integers, e.g., 0,1,2, 3,4, etc.

For example, the orthogonal cover code of the sequence is F_subc(n) × c, or the cyclic shift value of the sequence is (F)_subc(n)+F_SFCI(m)). c, or a cyclic shift value of the sequence of (F)_subc(n) + d) c, or the cyclic shift value of the sequence is (F)_subc(n)+F_SFCI(m) + d) c. Wherein d is a preset fifth value, and the preset fifth value may be an integer. Optionally, c and d are integers, e.g., 0,1,2, 3,4, etc.

Optionally, the determining, by the first device, the cyclic shift and/or the orthogonal cover code of the sequence according to the first slot index and/or the first frequency domain resource index where the first data is located and the third parameter includes:

the first device determines the fourth value as a cyclic shift value and/or an orthogonal cover code of the sequence; or, the first device modulo the number Mc of cyclic shift values and/or the number Mo of orthogonal cover codes by the fourth value, and determines the cyclic shift values and/or the orthogonal cover codes of the sequence according to a modulo result.

For example, the first device determines the fourth value as a cyclic shift value of the sequence and/or the first device determines the fourth value as an orthogonal cover code of the sequence.

For yet another example, the first device may modulo the fourth value by a number of cyclic shift values Mc and/or the first device may modulo the fourth value by a number of orthogonal cover codes Mo.

For example, the cyclic shift value of the sequence is mod (F)_subc(n), Mc) c, or a cyclic shift value of the sequence mod (F)_subc(n)+F_SFCI(m), Mc) c, or cyclic shift value of the sequence mod (F)_subc(n) + d, Mc) c, or a cyclic shift value of the sequence mod (F)_subc(n)+F_SFCI(m) + d, Mc) c. Wherein d is a preset fifth value, and the preset fifth value may be an integer. Optionally, c and d are integers, e.g., 0,1,2, 3,4, etc.

For example, the orthogonal cover code for the sequence is mod (F)_subc(n), Mo) c, or cyclic shift value of the sequence mod (F)_subc(n)+F_SFCI(m), Mo) c, or cyclic shift value of the sequence is mod (F)_subc(n) + d, Mo) c, or cyclic shift value of the sequence mod (F)_subc(n)+F_SFCI(m) + d, Mo) c. Wherein d is a preset fifth value, and the preset fifth value may be an integer. Optionally, c and d are integers, e.g., 0,1,2, 3,4, etc.

Optionally, the cyclic shift value or the orthogonal cover code determined in this manner may be a cyclic shift value or a numerical value of the orthogonal cover code, or may also be an index (index) of the cyclic shift value or the orthogonal cover code, and the first device determines the numerical value of the cyclic shift value or the orthogonal cover code according to the index of the cyclic shift value or the orthogonal cover code.

For example, the first device generates a cyclically shifted value according to the cyclic shift value, and generates a corresponding reference signal according to the cyclically shifted value.

For example, the value of the cyclic shift is generated according to the following formula:

wherein h (N) is a cyclic shift value, α is a value of the cyclic shift, where N is a length of the sequence and is a positive integer;

generating a reference signal according to the following formula:

wherein r is_u,vAnd (n) is an original sequence, wherein Mc is the length of the sequence used by the reference signal and is a positive integer.

Illustratively, the first device generates a value of the orthogonal cover code according to the orthogonal cover code, and generates a corresponding reference signal according to the value of the orthogonal cover code.

For example, the values of the orthogonal cover codes are generated according to the following formula: n _ occ ═ q (x) mod Ko, where Ko is the total number of orthogonal sequences, and q (x) is the orthogonal cover code.

2.4, the first device determines a sequence parameter of a sequence of the feedback information corresponding to the first data according to the first time slot index and/or the first frequency domain resource index where the first data is located by the following means:

2.4.1, the first device modulo the total number of cyclic shifts Mc by the first slot index, and determining a cyclic shift value according to a modulo result.

For example, the cyclic shift value is mod (N, Mc) × e, e is a preset sixth value, e is an integer, e is 1/Mc, a is Mc/N, e is 1,2,3 or 6, and N is a feedback period.

2.4.2, the first device determines a cyclic shift value according to the difference between the first slot index n and the second slot index m.

For example, the cyclic shift value is mod (m-N, Mx) · e, or the cyclic shift value is mod (m-N-K +1, Mx) · e, or the cyclic shift value is mod (N + N-m + K, Mx) · e.

Alternatively, Mx may be a feedback period N, and may be determined according to the feedback period N and/or the processing delay K, for example, Mx ═ N + K, or Mx ═ K + e. Wherein e is 1,2,3 or 6, etc.

2.4.3, the first device modulo the total number of cyclic shifts Mc by the difference between the first slot index n and the second slot index m, and determines the cyclic shift value according to the modulo result.

For example, the cyclic shift value is mod (m-N, Mc) e, or the cyclic shift value is mod (m-N-K +1, Mc) e, or the cyclic shift value is mod (N + N-m + K, Mc) e.

2.4.4, the first device determines a cyclic shift value according to the first frequency domain resource index.

For example, the cyclic shift value is mod (F)_subc(n) + n, Mx) e, or a cyclic shift value mod (F)_subc(n) + m-n, Mx) e, or a cyclic shift value mod (F)_subc(n) + m-n-K +1, Mx) e, or a cyclic shift value mod (F)_subc(N) + N + N-m +1, Mx) e, or a cyclic shift value mod (F)_subc(n)+N+n-m+K,Mx)*e。

2.4.5, the first device determines a cyclic shift value according to the second frequency domain resource index.

For example, the cyclic shift value is mod (F)_SFCI(m) + n, Mx) e, or a cyclic shift value mod (F)_SFCI(m) + m-n, Mx) e, or a cyclic shift value mod (F)_SFCI(m) + m-n-K +1, Mx) e, or a cyclic shift value mod (F)_SFCI(m) + N + N-m +1, Mx) e, or a cyclic shift value mod (F)_SFCI(m) + N-m + K, Mx) e. In the present invention, F, unless otherwise specified_SFCIThe meaning of (m) is the same as that in this embodiment, and is a second frequency domain resource index on the time slot m where the feedback resource is located.

In yet another implementation, when the hidden node exists, the second device (i.e., the transmitter of the first data, the receiver of the feedback information) may be interfered on the feedback resources, and thus the feedback resources may be distinguished according to the difference of the feedback manners. For example, the sequence parameters further include at least two different sequence parameter subsets, the different sequence parameter subsets correspond to at least two different feedback manners, and the at least two different feedback manners include one or more of the following: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

Illustratively, the at least two different feedback manners include feeding back positive or negative acknowledgements, and feeding back only negative acknowledgements. Specifically, the method may include option1 and option2, where option1 feedback refers to a feedback method for feeding back HARQ NACK under multicast, and option2 feedback refers to a feedback method for feeding back HARQ NACK or ACK under multicast. The feedback modes in option1 and option2 are usually performed for data packets in different feedback modes, so the sequence parameters used by them should be different and preferably orthogonal to each other.

For example, feedback resources for designing the option1 and option2 feedback modes may be as follows:

determining sequence parameters according to a first frequency domain resource where first data are located, and then dividing different sequence parameters into two sets, wherein one set is used for option1, and the other set is used for option 2. Therefore, when the time domain and/or frequency domain resources of the transmitted data are the same, only a part of sequence parameters of option1 can be ensured, and the feedback of option2 also uses the other part of sequence parameters to generate the sequence, so that the sequences generated by the sets corresponding to the 2 options can be orthogonal.

For example, the root sequence number u is divided into 2 groups, such as one group is 0 to M/2-1, and another group is M/2 to M-1, where M is the maximum root sequence number. As another example, the cyclic shift values are divided into two groups, and the available Mc cyclic shift values are divided into two different groups. For example, Mc may take the values: 2, 4, 6, 8 or 12. For example: one set is 0 to 3 and the other set is 6 to 9. Alternatively, as another example, a set of cyclic shift values is 0 or 6; the other set of cyclic shift values is 3 or 9. For another example, a set of cyclic shift values is 0; another set of cyclic shift values is 6.

Optionally, option2 corresponds to a plurality of different first UEs, that is, a second device of the same data source corresponds to different fed-back first devices, and different Rx UE IDs (that is, identification information of a receiving device) may be used for partitioning.

And the third embodiment divides the feedback resources into at least two groups, namely the feedback resources comprise at least two groups, and the at least two groups of feedback resources respectively correspond to different processing capacities.

The processing capability refers to a processing capability of the first device that transmits the feedback information.

Optionally, this third embodiment may be used in combination with the first and second embodiments described above to further ensure that no conflict occurs between feedback resources.

Collisions may occur due to overlapping of devices of different processing capabilities on the same feedback resource. For example, the slot position of the feedback resource, i.e. the second slot index, is determined in a manner of nf ≧ (N + Ki), and nf ═ m × N, i.e.: the slot position nf of the feedback resource for data on slot N cannot be smaller than N + Ki and occurs on a feedback slot that repeatedly occurs with a period N. Where Ki denotes different processing capacities, e.g. a capacity of 1 for K1, i.e. K1 ═ 1, and a capacity of 2 for K2, i.e. K2 ═ 2.

As shown in fig. 10, the processing capability of the first device UE1 of Data1 on slot n +1 is 1, its corresponding feedback resource is on slot n +2, the processing capability of the first device UE2 of Data1 on slot n +2 is 1, its corresponding feedback resource is on slot n +3, the processing capability of the first device UE3 of Data1 on slot n +1 is 2, and its corresponding feedback resource is on slot n +3, that is, due to the different processing capabilities of the UE1 and the UE2, the feedback resources of the Data of slot n +1 and slot n +2 may appear on the same slot n +3, resulting in a conflict between the feedback resources. Especially, when the frequency domain positions of the data in the time slot n +1 and the time slot n +2 are the same, the situation that the feedback resources of the data in different time slots are completely the same due to different processing capabilities can occur.

In this embodiment, at least two sets of feedback resources are divided, and the first device determines the actual feedback resource of the feedback information together according to the feedback resource set to which the processing capability of the first device belongs and the feedback resources determined in the first and second embodiments, so as to avoid interference generated after the feedback resources of devices with different processing capabilities overlap, and particularly, if there is an overlapping collision in the feedback resources determined in the first and second embodiments, further avoid the collision between the feedback resources.

Specifically, still include:

the first equipment determines a feedback resource set to which the processing capacity belongs according to the processing capacity;

For example, the at least two sets of feedback resources include: a first set of feedback resources and a second set of feedback resources; the first feedback resource set corresponds to a first feedback processing capability; the second set of feedback resources corresponds to a second feedback processing capability.

Specifically, the at least two sets of feedback resources include:

For example, the frequency domain resources may be divided into two groups, the two groups of frequency domain resources occupying different PRBs, different subchannels, or different REs; alternatively, one of the two sets of frequency domain resources is mapped from a low frequency, and the other is mapped from a high frequency. Alternatively, the second frequency domain resources may be divided into two groups. For example, the frequency domain resources of feedback are divided according to PRBs, that is, each feedback channel occupies one PRB, and if there are S PRBs, the 1 st to S/2 nd PRBs are a first group; the S/2+1 th to S-th PRBs are a second group. For another example, the frequency domain resource fed back may also have different RE positions within the PRB, and the different RE positions correspond to different feedback channels. Then, for example, the odd RE positions are the first set of feedback resources; the even RE positions are another set of feedback resources. For another example, the 1 st RE to the 6 th RE in the PRB are a first set of feedback resources, and the 7 th RE to the 12 th RE are another set of feedback resources.

For example, the feedback resources, which may be different groups, may include different root sequence numbers, different cyclic shift values, or different orthogonal cover codes.

Specifically, CS ═ F_subc(n) + Gi Δ) mod 4, Gi ═ i (e.g., i ═ 0,1 for 2 sets of processing capabilities), or u ═ m + F_subc(n) + Gi Δ) mod Mu, or n _ OCC ═ Gi, for example: if 2 symbols are used for feedback information, Gi ═ 0, n _ OCC [ +1, +1],Gi＝1,n_OCC＝[+1,-1]. Wherein Δ is a positive integer.

In an implementation manner, when the first device sends the feedback information, the first device sends the feedback information on the feedback resources corresponding to the processing capability, and the second device, as a receiver of the feedback information, may simultaneously detect the feedback resources corresponding to the two sets of feedback sets, so as to completely determine the feedback information of the sent first data, and taking the above fig. 10 as an example, the second device sending the first data in the time slot n +1 may simultaneously detect the feedback information on the feedback resources in the time slot n +2 and the time slot n + 3.

Further comprising:

and if the second equipment determines that the received feedback information feeds back a negative acknowledgement, retransmitting the first data by the second equipment.

Specifically, the second device detects feedback information on feedback resources corresponding to feedback time slots corresponding to different processing capabilities according to the processing capabilities of one or more first devices. The first device can only confirm that the first data transmission is correct if the first device simultaneously detects positive acknowledgements fed back by the first device with various processing capabilities. As long as the first device detects a negative acknowledgement fed back by the first device with any one of different processing capabilities, the first device may confirm that the first data transmission is erroneous, and may directly initiate retransmission of the first data. The processing mode can reduce the transmission delay of the data sent by the second equipment to the maximum extent and improve the performance of the system.

For example: the second device considers the first data transmission to be correct if it detects a positive acknowledgement information ACK for the first data on a first feedback slot that arrives earlier and also detects a positive acknowledgement information ACK for the first data on a second feedback slot that arrives later. If the second device detects positive acknowledgement information ACK of the first data on a first feedback time slot which arrives earlier and detects negative acknowledgement information NACK of the first data on a second feedback time slot which arrives later, the second device considers that the first data is transmitted wrongly; at which point the second device may initiate a retransmission of the first data. If the second device detects the negative acknowledgement information NACK of the first data on the first feedback time slot that arrives before, the second device does not need to wait for the acknowledgement of the first data on the second time slot that arrives after, but considers that the first data is transmitted in error, and directly initiates the retransmission of the first data.

In addition, an embodiment of the present application further provides an information transmission method, which is implemented based on a format of a time domain resource of a transmission channel (including a feedback channel and/or a data channel) provided in the embodiment of the present application, and is used to support detection performance of Automatic Gain Control (AGC), so that the method may also be regarded as a mapping manner of a time frequency resource of the transmission channel. The information transmission method may be applied to the feedback information transmission method in the foregoing embodiment, may also be applied to an SCI transmission method, and may also be applied to a data transmission method, which is not limited in this disclosure.

Optionally, because the format of channel transmission when sending information is determined in the embodiment of the present application, the format does not conflict with the feedback information transmission method, and therefore the information transmission method provided in the embodiment of the present application may also be used in combination with the feedback information transmission method.

The specific procedure of the information transmission method is described in detail below with reference to fig. 11. As shown in fig. 11, the process includes:

step 1101: the third device determines a first symbol set and a second symbol set carrying first information, wherein the bandwidth of the first symbol set is not less than a preset value. The first information is a data packet, indication information or feedback information when data is sent.

Specifically, the format of the time domain resource of the transmission channel based on which the third device is configured is that the transmission channel includes a first symbol set and a second symbol set, and the first symbol set and the second symbol set are used for carrying the first information.

Illustratively, the first symbol set is used for automatic gain control of the receiver (i.e. the fourth device) of the first information, i.e. the first symbol set comprises symbols for AGC, e.g. comprises starting symbols for AGC.

Illustratively, the second symbol set includes symbols used for transmitting the first information, e.g., symbols including SFCI, SCI or data used for transmitting feedback information.

Optionally, the transmission channel further includes a null symbol for transceive conversion located at the start position of the transmission channel, and a null symbol for transceive conversion located at the end position of the transmission channel.

In particular, the first set of symbols is adjacent to the second set of symbols in the time domain, and the second set of symbols follows the first set of symbols.

The first set of symbols includes at least 1 symbol, the second set of symbols includes at least 1 symbol, and the number of symbols in the second set of symbols is not less than the number of symbols in the first set of symbols. The content of the symbols in the first set of symbols may be content on any one or more of the symbols in the second set of symbols.

In one implementation, the first information carried by the first symbol set is the same as the first information carried by the second symbol set. The first information carried by the first set of symbols is also referred to as content in the first set of symbols, and the first information carried by the second set of symbols is also referred to as content in the second set of symbols.

For example, the transmission channel may comprise a feedback channel, the first set of symbols may occupy one symbol, and the second set of symbols may also occupy one symbol, and the content or transmitted signal carried in the first set of symbols may be the same as the content or transmitted signal carried in the second set of symbols.

In another implementation, the first information carried by the first symbol set is a subset of the first information carried by the second symbol set.

For example, the transmission channel comprises a feedback channel, the first symbol set occupies one symbol, the second symbol set occupies two symbols, and the content or the transmitted signal of the first symbol set can be used as the content or the signal of the first symbol set with the content or the signal in the first symbol at the beginning of the second symbol set.

For example, the transmission channel comprises a data channel, and a slot contains 14 symbols, and the first 13 symbols carry the first information. Where the first symbol is used for the fourth device to perform AGC operations and the content or transmitted signal on the first symbol is the same as the content or transmitted signal on the 2 nd symbol.

For example, the first symbol set is a first symbol for transmitting the first information, and the second symbol set is a symbol after the first symbol set and carrying the first information.

The third device determines the first set of symbols and the second set of symbols by one of the following conditions being satisfied by a bandwidth of the first set of symbols and a bandwidth of the second set of symbols in the transmission channel:

3.1, the bandwidth of the first symbol set is the same as that of the second symbol set, and the mapping is continuous in the frequency domain.

Specifically, the step of setting the bandwidth of the first symbol set to be the same as the bandwidth of the second symbol set includes:

REs in each symbol in the first symbol set are subsets of REs in each symbol in the second symbol set; or, the first symbol set and the second symbol set completely carry the encoded transport block of the first information.

Illustratively, neither the bandwidth of the first symbol set nor the bandwidth of the second symbol set is less than (i.e., greater than or equal to) 10 PRBs. Optionally, at this time, the length of the sequence in which the first symbol set and the second symbol set are located is not less than 120.

Optionally, one resource pool may include multiple data resource pools and/or multiple feedback resource pools.

Taking an example that one resource pool includes multiple feedback resource pools as an example, as shown in fig. 12, one resource pool includes 3 feedback resource pools, G1 is a null symbol for transceiving conversion located at a start position of a feedback channel, G2 is a null symbol for transceiving conversion located at an end position of the feedback channel, AGC is a first symbol set, the first symbol set is used for performing automatic gain control on a fourth device, SFCI is a second symbol set, and the second symbol set carries first information SFCI. The symbols in the second symbol set are mapped consecutively in the frequency domain.

3.2, the bandwidth of the first symbol set is the same as that of the second symbol set, and the mapping is not continuous in the frequency domain at equal intervals.

For example, neither the bandwidth of the first symbol set nor the bandwidth of the second symbol set is less than 10 PRBs, and the first symbol set and the second symbol set are placed at equal intervals in the frequency domain, with no data or signals placed on the middle REs of the intervals.

Optionally, REs in the first symbol set are from REs in corresponding frequency domains in the second symbol set.

As shown in fig. 13, the bandwidth of the first symbol set and the bandwidth of the second symbol set are both 10 PRBs, the interval is 10 REs in the frequency domain, and the length of the feedback sequence is 12, so that the number of REs sharing data on the 10 PRBs is 10 × 12/10 — 12. For another example, the bandwidth of the first symbol set and the bandwidth of the second symbol set are both 12 PRBs, the interval is 12 REs in the frequency domain, and the length of the feedback sequence is 12, so that the number of REs having data in total on the 12 PRBs is 12 × 12/12 — 12. For another example, the bandwidth of the first symbol set and the bandwidth of the second symbol set are both 10 PRBs, the interval is 12 REs in the frequency domain, and the length of the feedback sequence is 10, so that the number of REs having data in total on the 12 PRBs is 10 × 12/12 — 10.

3.3, the bandwidth of the first symbol set is greater than the bandwidth of the second symbol set.

Specifically, in each symbol in the first symbol set, one RE carrying the first information is mapped to every M REs, no data or signal is mapped to other M-1 REs, and each symbol in the second symbol is mapped continuously in the frequency domain.

Optionally, the value of M is 10, 12 or the number of physical resource blocks corresponding to the preset value. If M is 10 or 12, the problem of resource overlap may occur.

Illustratively, the bandwidth of the second symbol set is 1 PRB, the bandwidth of the first symbol set is not less than 10 PRB, the first symbol set is placed at equal intervals in the frequency domain, and no data is placed on the middle REs of the intervals.

As shown in fig. 14, the bandwidth of the first symbol set is 10 PRBs, the interval is 10 REs in the frequency domain, and the length of the feedback sequence is 12, so that the number of REs sharing data on the 10 PRBs is 10 × 12/10 — 12. As another example, the bandwidth of the first symbol set is 12 PRBs, and the interval is 12 REs in the frequency domain, so that the number of REs having data in total on the 12 PRBs is 12 × 12/12. As another example, the bandwidth of the first symbol set is 10 PRBs, and the interval is 12 REs in the frequency domain, so that the number of REs having data in total on the 12 PRBs is 10 × 12/12.

When the data in the first symbol set is at different frequency domain positions, the feedback information in the corresponding second symbol set is also at different frequency domain positions. Optionally, the position of the symbol in the first symbol set is the position of an RE, and the position of the symbol in the second symbol set is the position of a PRB or subchannel.

Optionally, the REs in the first symbol set are from REs in corresponding frequency domains in the second symbol set.

Step 1102: the third device transmits the first set of symbols and the second set of symbols.

Step 1103: the fourth device receives a first symbol set and a second symbol set, wherein the first symbol set and the second symbol set carry first information, and the bandwidth of the first symbol set is not less than a preset value.

Step 1104: the fourth device obtains first information through the first symbol set and the second symbol set.

Illustratively, the first symbol set is used for automatic gain control of a receiver (i.e. a fourth device) of the first information, and the fourth device further performs automatic gain control according to the first symbol set of the first information.

The process of the fourth device obtaining the first information through the first symbol set and the second symbol set may be regarded as a reverse process of the third device determining the first symbol set and the second symbol set carrying the first information, which is not described herein again.

The feedback information transmission method according to the embodiment of the present application is described in detail above with reference to fig. 4 to fig. 10, and based on the same inventive concept as that of the feedback information transmission method, the embodiment of the present application further provides a feedback information transmission apparatus, as shown in fig. 15, where the feedback information transmission apparatus 1500 includes a processing unit 1501 and a transceiving unit 1502, and the apparatus 1500 can be used to implement the method described in the method embodiment applied to the first device or the second device. The apparatus 1500 may be located within or be the first device or the second device.

The apparatus 1500 in the above embodiments may be a first device or a second device, or may be a chip applied to the first device or the second device, or other combined devices and components having the functions of the above terminal devices. The transceiving unit may be a transceiver when the apparatus is a first device or a second device, may include an antenna, a radio frequency circuit, and the like, and the processing module may be a processor, for example: a Central Processing Unit (CPU). When the apparatus is a component having the functions of the first device or the second device, the transceiver unit may be a radio frequency unit, and the processing module may be a processor. When the apparatus is a chip system, the transceiver unit may be an input/output interface of the chip system, and the processing module may be a processor of the chip system.

In one embodiment, the apparatus 1500 is applied to a first device.

Specifically, the processing unit 1501 is configured to determine, according to a first resource index of received first data, a feedback resource of feedback information corresponding to the first data, where the feedback resource includes one or more of a time domain resource, a frequency domain resource, and a sequence resource;

a transceiving unit 1502, configured to send the feedback information through the feedback resource.

In one implementation, the feedback information is used for feeding back positive or negative acknowledgements, or only for feeding back positive acknowledgements, or only for feeding back negative acknowledgements.

In an implementation manner, the processing unit 1501 is specifically configured to determine, according to a first resource index of received first data, a feedback resource of feedback information corresponding to the first data, where the feedback resource includes one or more of the following manners:

determining a second time slot index of feedback information corresponding to first data according to the first time slot index where the first data is located and the feedback cycle N;

determining a second frequency domain resource index of the feedback information corresponding to the first data according to the first frequency domain resource index where the first data is located;

and determining a sequence of feedback information corresponding to the first data according to the first time slot index and/or the first frequency domain resource index where the first data is located.

In one implementation, the second frequency domain resource where the feedback information is located belongs to a first feedback resource subset, where the frequency domain feedback resource on the time slot where the feedback information is located includes at least two feedback resource subsets, and the first feedback resource subset is one of the at least two feedback resource subsets.

In one implementation manner, the at least two feedback resource subsets are N feedback resource subsets, and different feedback resource subsets correspond to feedback resource positions where the first data on different time slots are located; alternatively, the first and second electrodes may be,

the at least two feedback resource subsets correspond to at least two different feedback modes, the at least two different feedback modes including at least two of: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

In an implementation manner, the processing unit 1501 is specifically configured to determine, according to a first frequency domain resource index where the first data is located and a first parameter, a second frequency domain resource index of feedback information corresponding to the first data, where the first parameter includes one or more of the following: the feedback method comprises the steps of a feedback cycle, a first time slot index of the first data, a preset first numerical value, a second time slot index where feedback information corresponding to the first data is located, a frequency domain deviation value, feedback time delay of the first equipment and the total number of frequency domain feedback resources on the time slot where the feedback information is located, wherein the feedback time delay is the minimum time interval from the first equipment to the first equipment receiving the first data and sending the feedback information.

In one implementation, the frequency domain offset value corresponds to a time slot position where the first data is located.

In an implementation manner, the processing unit 1501 is specifically configured to determine a third frequency domain resource index according to a ratio of the first frequency domain resource index to the feedback period; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback cycle and the first frequency domain resource index; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback time delay, the feedback period and the first frequency domain resource index; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining the third frequency domain resource index according to the difference between the second time slot index and the first time slot index and the ratio of the first frequency domain resource index to the feedback period; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the difference between the second time slot index and the first time slot index, the feedback time delay and the ratio of the first frequency domain resource index to the feedback period; the first equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the first time slot index, the first frequency domain resource index and the frequency domain offset value; and the first equipment determines a second frequency domain resource index according to the third frequency domain resource index.

In an implementation, the processing unit 1501 is specifically configured to determine the third frequency domain resource index as the second frequency domain resource index; or, the third frequency domain resource index is subjected to modulus operation on the total number of the frequency domain feedback resources, and the second frequency domain resource index is determined according to a modulus operation result; or, rounding up the third frequency domain resource index, and determining the second frequency domain resource index according to a rounding-up result; or, rounding down the third frequency domain resource index, and determining the second frequency domain resource index according to a rounding-down result.

In one implementation, the second frequency-domain resource index includes an index of a feedback resource subset of the second frequency-domain resource in a time slot in which the feedback information is located, and/or a second frequency-domain resource index in the feedback resource subset.

In one implementation, the feedback resource subset includes physical resource blocks PRB or resource elements RE, and the feedback resource subset includes continuous PRBs or REs for carrying information, or discontinuous PRBs or REs for carrying information at equal intervals in the frequency domain.

In an implementation manner, the processing unit 1501 is specifically configured to determine, according to a first slot index and/or a first frequency-domain resource index where first data is located, a sequence parameter of a sequence of feedback information corresponding to the first data; the first device determines a sequence carrying the feedback information according to the sequence parameters, wherein the sequence parameters include one or more of the following: the method comprises the steps of initial value of a sequence, initial position of the sequence, root sequence number of the sequence, cyclic shift value of the sequence and orthogonal cover code of the sequence.

In an implementation manner, the processing unit 1501 is specifically configured to determine a root sequence number of the sequence according to a first slot index and/or a first frequency-domain resource index where the first data is located, and a second parameter, where the second parameter includes one or more of the following: the preset second value, the second time slot number, the number of the root sequence numbers and the second frequency domain resource index of the feedback information.

In an implementation, the processing unit 1501 is specifically configured to determine a cyclic shift value and/or an orthogonal cover code of the sequence according to a first slot index and/or a first frequency-domain resource index where the first data is located, and a third parameter, where the third parameter includes one or more of the following: a preset third value, the second time slot number, the number of cyclic shift values, the number of orthogonal cover codes, the feedback period, the second frequency domain resource index, and the feedback delay.

In one implementation, the processing unit 1501 is specifically configured to determine a fourth value for the first slot index and/or the first frequency domain resource index where the first data is located, and the third parameter; determining the fourth value as a cyclic shift value and/or an orthogonal cover code of the sequence; or, the first device modulo the number of cyclic shift values and/or the number of orthogonal cover codes by the fourth value, and determines the cyclic shift values and/or the orthogonal cover codes of the sequence according to a modulo result.

In an implementation, the processing unit 1501 is specifically configured to modulo the total number of cyclic shifts by the first slot index, and determine a cyclic shift value according to a modulo result; or determining a cyclic shift value according to a difference between the first time slot index and the second time slot index; or, taking a modulus of the total cyclic shift value according to the difference between the first time slot index and the second time slot index, and determining the cyclic shift value according to the modulus result.

In one implementation, the sequence parameters further include at least two different sequence parameter subsets, where the different sequence parameter subsets correspond to at least two different feedback manners, and the at least two different feedback manners include one or more of the following: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

In one implementation, the feedback resources include at least two groups, and the at least two groups of feedback resources respectively correspond to different processing capabilities.

In one implementation, the at least two sets of feedback resources include: a first set of feedback resources and a second set of feedback resources;

In one implementation, the at least two sets of feedback resources include:

In an implementation manner, the processing unit 1501 is further configured to determine, according to the processing capability, a feedback resource set to which the processing capability belongs; and sending the feedback information according to the feedback resource set and the feedback resource.

In one embodiment, the apparatus 1500 is applied to a second device.

a transceiving unit 1502, configured to receive the feedback information through the feedback resource.

In an implementation manner, the processing unit 1501 is specifically configured to determine a third frequency domain resource index according to a ratio of the first frequency domain resource index to the feedback period N; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N, the feedback cycle N and the first frequency domain resource index; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N, the feedback time delay K, the feedback period N and the first frequency domain resource index; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining the third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N and the ratio of the first frequency domain resource index to the feedback cycle N; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the difference between the second time slot index m and the first time slot index N, the feedback time delay K, and the ratio of the first frequency domain resource index to the feedback period N; the second equipment determines a second frequency domain resource index according to the third frequency domain resource index; or determining a third frequency domain resource index according to the first time slot index n, the first frequency domain resource index and the frequency domain offset value; and the second equipment determines a second frequency domain resource index according to the third frequency domain resource index.

In an implementation, the processing unit 1501 is specifically configured to determine the third frequency domain resource index as the second frequency domain resource index; or, the third frequency domain resource index is subjected to modulus operation on the total number M of the frequency domain feedback resources, and the second frequency domain resource index is determined according to a modulus operation result; or, rounding up the third frequency domain resource index, and determining the second frequency domain resource index according to a rounding-up result; or, rounding down the third frequency domain resource index, and determining the second frequency domain resource index according to a rounding-down result.

In an implementation manner, the processing unit 1501 is specifically configured to determine, according to a first slot index and/or a first frequency-domain resource index where first data is located, a sequence parameter of a sequence of feedback information corresponding to the first data; the second device determines a sequence carrying the feedback information according to the sequence parameters, wherein the sequence parameters include one or more of the following: the method comprises the steps of initial value of a sequence, initial position of the sequence, root sequence number of the sequence, cyclic shift value of the sequence and orthogonal cover code of the sequence.

In an implementation manner, the processing unit 1501 is specifically configured to determine a fourth value according to the first slot index and/or the first frequency domain resource index where the first data is located, and the third parameter; determining the fourth value as a cyclic shift value and/or an orthogonal cover code of the sequence; or, the first device modulo the number of cyclic shift values and/or the number of orthogonal cover codes by the fourth value, and determines the cyclic shift values and/or the orthogonal cover codes of the sequence according to a modulo result.

In an implementation, the processing unit 1501 is specifically configured to modulo the total cyclic shift number Mc by the first slot index, and determine a cyclic shift value according to a modulo result; or determining a cyclic shift value according to a difference between the first time slot index and the second time slot index; or, taking a modulus of the total cyclic shift value according to the difference between the first time slot index and the second time slot index, and determining the cyclic shift value according to the modulus result.

In one implementation, the at least two sets of feedback resources include:

the first sequence initial position and the second sequence initial position.

In an implementation manner, the processing unit 1501 is further configured to determine, according to the processing capability, a feedback resource set to which the processing capability belongs; and receiving the feedback information according to the feedback resource set and the feedback resource.

In one implementation, the transceiving unit 1502 is further configured to detect the feedback information in the at least two sets of feedback resources, and when the first device detects the feedback information of the negative acknowledgement in any set of feedback resources, the second device retransmits the first data.

It should be noted that, the division of the modules in the embodiments of the present application is schematic, and is only a logical function division, and in actual implementation, there may be another division manner, and in addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

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

Based on the same concept as the feedback information transmission method, as shown in fig. 16, the embodiment of the present application further provides a schematic structural diagram of a feedback information transmission apparatus 1600. The apparatus 1600 may be configured to implement the method described in the method embodiment applied to the first device or the second device, which may be referred to as the description in the method embodiment, where the apparatus 1600 may be located in the first device or the second device, and may be the first device or the second device.

The device 1600 includes one or more processors 1601. The processor 1601 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program. The communication device may include a transceiving unit to enable input (reception) and output (transmission) of signals. For example, the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The apparatus 1600 includes one or more of the processors 1601, where the one or more processors 1601 are capable of implementing the methods of the first device or the second device in the illustrated embodiments described above.

Alternatively, the processor 1601 may also perform other functions in addition to the methods of the above-described illustrated embodiments.

Alternatively, in one design, the processor 1601 may execute instructions that cause the apparatus 1600 to perform the methods described in the method embodiments above. The instructions may be stored in whole or in part within the processor, such as instructions 1603, or may be stored in whole or in part in a memory 1602 coupled to the processor, such as instructions 1604, or may collectively cause the apparatus 1600 to perform the method described in the above method embodiments via

instructions

1603 and 1604.

In yet another possible design, the communication apparatus 1600 may also include a circuit, which may implement the functions of the terminal device in the foregoing method embodiments.

In yet another possible design, the apparatus 1600 may include one or more memories 1602 having instructions 1604 stored thereon, which are executable on the processor to cause the apparatus 1600 to perform the methods described in the above method embodiments. Optionally, the memory may further store data therein. Instructions and/or data may also be stored in the optional processor. For example, the one or more memories 1602 may store the corresponding relations described in the above embodiments, or the related parameters or tables referred to in the above embodiments. The processor and the memory may be provided separately or may be integrated together.

In yet another possible design, the apparatus 1600 may further include a transceiver 1605. The processor 1601 may be referred to as a processing unit and controls a device (terminal or base station). The transceiver 1605 may be called a transceiver, a transceiving circuit, or a transceiver, and is used for implementing transceiving of a device.

For example, if the apparatus 1600 is a chip applied in a terminal device or other combined devices, components, etc. having the functions of the terminal device, the apparatus 1600 may include a transceiving unit 1605.

In yet another possible design, the apparatus 1600 may further include a transceiver 1605 and an antenna 1606. The processor 1601 may be referred to as a processing unit and controls a device (terminal or base station). The transceiver 1605 may be called a transceiver, a transceiving circuit, or a transceiver, and is configured to implement transceiving function of the apparatus through the antenna 1606.

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

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

An embodiment of the present application further provides a computer-readable medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the feedback information transmission method described in any method embodiment applied to the first device or the second device.

An embodiment of the present application further provides a computer program product, and when executed by a computer, the computer program product implements the feedback information transmission method described in any method embodiment applied to the first device or the second device.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to execute the feedback information transmission method in any method embodiment applied to the first device or the second device.

It should be understood that the processing device may be a chip, the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated in the processor, located external to the processor, or stand-alone.

The information transmission method according to the embodiment of the present application, including the information transmission method and the information reception method, is described in detail above with reference to fig. 11 to fig. 14, and based on the same inventive concept as that of the information transmission method, the embodiment of the present application further provides an information transmission apparatus, as shown in fig. 17, where the information transmission apparatus 1700 includes a processing unit 1701 and a transceiving unit 1702, and the apparatus 1700 can be used to implement the method described in the method embodiment applied to the third device or the fourth device. Apparatus 1700 may be located within, or be, a third device or a fourth device.

It should be noted that the apparatus 1700 in the foregoing embodiment may be a third device or a fourth device, or may be a chip applied to the third device or the fourth device, or other combined devices and components having the functions of the foregoing terminal device. When the apparatus is a third device or a fourth device, the transceiving unit may be a transceiver, and may include an antenna, a radio frequency circuit, and the like, and the processing module may be a processor, for example: a Central Processing Unit (CPU). When the apparatus is a component having the functions of the third device or the fourth device, the transceiver unit may be a radio frequency unit, and the processing module may be a processor. When the apparatus is a chip system, the transceiver unit may be an input/output interface of the chip system, and the processing module may be a processor of the chip system.

In one embodiment, the apparatus 1700 is applied to a third device.

Specifically, the processing unit 1701 is configured to determine a first symbol set and a second symbol set carrying first information, where a bandwidth of the first symbol set is not less than a preset value;

a transceiving unit 1702 configured to transmit the first symbol set and the second symbol set.

In one implementation, the first information is a data packet, indication information when data is transmitted, or feedback information.

In one implementation, the first information carried by the first symbol set is the same as the first information carried by the second symbol set, or the first information carried by the first symbol set is a subset of the first information carried by the second symbol set.

In one implementation, the first set of symbols is adjacent in time domain to the second set of symbols, and the second set of symbols follows the first set of symbols.

In one implementation, the first symbol set includes at least 1 symbol, the second symbol set includes at least 1 symbol, and a number of symbols in the second symbol set is not less than a number of symbols in the first symbol set.

In one implementation, the first symbol set is a first symbol for transmitting the first information, and the second symbol set is a symbol after the first symbol set and carrying the first information.

In one implementation manner, the number of physical resource blocks corresponding to the preset value is a positive integer not less than 10.

In one implementation, the bandwidth of the first symbol set is the same as the bandwidth of the second symbol set, and the first symbol set and the second symbol set are mapped continuously in the frequency domain; or the bandwidth of the first symbol set is the same as that of the second symbol set, and the mapping is not continuously performed at equal intervals in the frequency domain; alternatively, the bandwidth of the first symbol set is greater than the bandwidth of the second symbol set.

In one implementation, if the bandwidth of the first symbol set is the same as the bandwidth of the second symbol set and the mapping is not performed continuously in the frequency domain at equal intervals, one RE carrying the first information is mapped to each M REs in each of the symbols of the first symbol set and the second symbol set, and no data or signal is mapped to other M-1 REs.

In one implementation, if the bandwidth of the first symbol set is the same as the bandwidth of the second symbol set, the REs in each symbol in the first symbol set are subsets of the REs in each symbol in the second symbol set; or, the first symbol set and the second symbol set completely carry the encoded transport block of the first information.

In one implementation, if the bandwidth of the first symbol set is greater than the bandwidth of the second symbol set, every M REs in each symbol in the first symbol set map one RE carrying the first information, no data or signal is mapped on other M-1 REs, and each symbol in the second symbol is mapped continuously in the frequency domain.

In one implementation, the signals of the REs on at least one symbol in the first symbol set are correspondingly the same as the signals of the REs on at least one symbol in the second symbol set.

In one implementation, the value of M is 10 or 12 or the number of physical resource blocks corresponding to the preset value.

In one implementation, the first set of symbols is used for automatic gain control by a receiver of the first information.

In one embodiment, the apparatus 1700 is applied to a fourth device.

Specifically, the transceiving unit 1702 is configured to receive a first symbol set and a second symbol set, where the first symbol set and the second symbol set carry first information, and a bandwidth of the first symbol set is not less than a preset value;

a processing unit 1701 is configured to obtain first information through the first symbol set and the second symbol set.

In one implementation, the processing unit 1701 is further configured to perform automatic gain control based on the first symbol set.

Based on the same concept as the information transmission method, as shown in fig. 18, the embodiment of the present application further provides a schematic structural diagram of an information transmission apparatus 1800. The apparatus 1800 may be configured to implement the method described in the method embodiment applied to the third device or the fourth device, see the description in the above method embodiment, where the apparatus 1800 may be located in the third device or the fourth device, and may be the third device or the fourth device.

The apparatus 1800 includes one or more processors 1801. The processor 1801 may be a general-purpose processor, a special-purpose processor, or the like. For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program. The communication device may include a transceiving unit to enable input (reception) and output (transmission) of signals. For example, the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The apparatus 1800 includes one or more of the processors 1801, and the one or more processors 1801 may implement the method of the third device or the fourth device in the above illustrated embodiments.

Optionally, the processor 1801 may also implement other functions besides implementing the methods of the above-described illustrated embodiments.

Alternatively, in one design, the processor 1801 may execute instructions to cause the apparatus 1800 to perform the methods described in the above method embodiments. The instructions may be stored in whole or in part within the processor, such as instructions 1803, or in whole or in part in memory 1802 coupled to the processor, such as instructions 1804, or may collectively cause apparatus 1800 to perform the methods described in the method embodiments above, via

instructions

1803 and 1804.

In yet another possible design, the communication apparatus 1800 may also include a circuit, which may implement the functions of the terminal device in the foregoing method embodiments.

In yet another possible design, the apparatus 1800 may include one or more memories 1802 having instructions 1804 stored thereon, the instructions being executable on the processor to cause the apparatus 1800 to perform the methods described in the above-described method embodiments. Optionally, the memory may further store data therein. Instructions and/or data may also be stored in the optional processor. For example, the one or more memories 1802 may store the corresponding relationships described in the above embodiments, or the related parameters or tables involved in the above embodiments, and the like. The processor and the memory may be provided separately or may be integrated together.

In yet another possible design, the apparatus 1800 may further include a transceiving unit 1805. The processor 1801 may be referred to as a processing unit and controls a device (terminal or base station). The transceiver 1805 may be referred to as a transceiver, a transceiving circuit, or a transceiver, and is used for implementing transceiving of a device.

For example, if the apparatus 1800 is a chip applied in a terminal device or other combined devices, components, etc. having the functions of the terminal device, the apparatus 1800 may include a transceiver 1805.

In yet another possible design, the apparatus 1800 may further include a transceiver unit 1805 and an antenna 1806. The processor 1801 may be referred to as a processing unit and controls a device (terminal or base station). The transceiver 1805 may be referred to as a transceiver, a transceiving circuit, a transceiver, or the like, and is configured to implement transceiving functions of the apparatus through the antenna 1806.

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

An embodiment of the present application further provides a computer-readable medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the information transmission method described in any method embodiment applied to the third device or the fourth device.

An embodiment of the present application further provides a computer program product, and when executed by a computer, the computer program product implements the information transmission method described in any method embodiment applied to the third device or the fourth device.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to execute the information transmission method according to any one of the method embodiments applied to the third device or the fourth device.

It should be understood that the processing device may be a chip, the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, which may be implemented by reading software code stored in a memory, which may be integrated in the processor, located external to the processor, or stand-alone.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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

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

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

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented in hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy Disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

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

Claims

1. A method for transmitting feedback information, comprising:

the method comprises the steps that a first device determines feedback resources of feedback information corresponding to first data according to a first resource index of the received first data, wherein the feedback resources comprise one or more of time domain resources, frequency domain resources and sequence resources;

the first device sends the feedback information through the feedback resource;

the first device determines, according to a first resource index of received first data, feedback resources of feedback information corresponding to the first data, where the feedback resources include one or more of the following ways:

the first equipment determines a second time slot index of feedback information corresponding to the first data according to the first time slot index where the first data is located and the feedback cycle N;

2. The method of claim 1, wherein the feedback information is used for feeding back positive or negative acknowledgements, or only for feeding back positive acknowledgements, or only for feeding back negative acknowledgements.

3. The method of claim 1, wherein the second frequency-domain resource in which the feedback information is located belongs to a first feedback resource subset, wherein the frequency-domain feedback resource in the time slot in which the feedback information is located includes at least two feedback resource subsets, and the first feedback resource subset is one of the at least two feedback resource subsets.

4. The method of claim 3, wherein the at least two feedback resource subsets are N feedback resource subsets, and different feedback resource subsets correspond to feedback resource locations where the first data is located on different time slots; alternatively, the first and second electrodes may be,

5. The method of claim 1, wherein the determining, by the first device, the second frequency-domain resource index of the feedback information corresponding to the first data according to the first frequency-domain resource index where the first data is located comprises:

6. The method of claim 5, wherein the frequency domain offset value corresponds to a slot position at which the first data is located.

7. The method of claim 5, wherein the determining, by the first device according to the first frequency-domain resource index where the first data is located and the first parameter, the second frequency-domain resource index of the feedback information corresponding to the first data comprises:

8. The method of claim 7, wherein the first device determining the second frequency-domain resource index from the third frequency-domain resource index comprises:

the first equipment rounds the third frequency domain resource index upwards, and determines the second frequency domain resource index according to a round-up result; alternatively, the first and second electrodes may be,

9. The method according to claim 1, wherein the second frequency-domain resource index comprises an index of a feedback resource subset of the second frequency-domain resource over a time slot in which the feedback information is located, and/or a second frequency-domain resource index within the feedback resource subset.

10. The method of claim 9, wherein the feedback resource subset comprises Physical Resource Blocks (PRBs) or Resource Elements (REs), and the feedback resource subset comprises consecutive PRBs or REs for carrying information, or discontinuous PRBs or REs for carrying information at equal intervals in a frequency domain.

11. The method of claim 1, wherein the determining, by the first device, the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located comprises:

12. The method of claim 11, wherein the determining, by the first device, the sequence parameter of the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located comprises:

13. The method according to claim 11 or 12, wherein the determining, by the first device, the sequence parameter of the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located includes:

the first device determines a cyclic shift value and/or an orthogonal cover code of the sequence according to a first time slot index and/or a first frequency domain resource index where the first data is located, and a third parameter, where the third parameter includes one or more of the following: a preset third value, a second time slot number, the number of cyclic shift values, the number of orthogonal cover codes, the feedback period, the second frequency domain resource index, and the feedback delay.

14. The method of claim 13, wherein the first device determining the cyclic shift and/or the orthogonal cover code for the sequence according to the first slot index and/or the first frequency-domain resource index where the first data is located, and the third parameter comprises:

15. The method according to claim 11 or 12, wherein the determining, by the first device, the sequence parameter of the sequence of the feedback information corresponding to the first data according to the first slot index and/or the first frequency-domain resource index where the first data is located includes:

16. The method of claim 11, wherein the sequence parameters further comprise at least two different subsets of sequence parameters, the different subsets of sequence parameters corresponding to at least two different feedback modes, the at least two different feedback modes comprising one or more of: feeding back only positive acknowledgements, feeding back positive acknowledgements or negative acknowledgements, and feeding back only negative acknowledgements.

17. The method of claim 1, wherein the feedback resources comprise at least two groups, and wherein the at least two groups of feedback resources respectively correspond to different processing capabilities.

18. The method of claim 17, wherein the at least two sets of feedback resources comprise: a first set of feedback resources and a second set of feedback resources;

19. The method of claim 17, wherein the at least two sets of feedback resources comprise:

20. The method of claim 18 or 19, further comprising:

21. A method for transmitting feedback information, comprising:

the second equipment determines feedback resources of feedback information corresponding to the first data according to a first resource index of the first data, wherein the feedback resources comprise one or more of time domain resources, frequency domain resources and sequence resources;

the second device receives the feedback information through the feedback resource;

the second device determines, according to the first resource index of the received first data, that the feedback resource of the feedback information corresponding to the first data includes one or more of the following ways:

22. The method of claim 21, wherein the feedback information is used for feeding back positive or negative acknowledgements, or only for feeding back positive acknowledgements, or only for feeding back negative acknowledgements.

23. A feedback information transmission apparatus comprising a processor and a memory, the processor coupled with the memory;

a memory for storing a computer program;

a processor for executing a computer program stored in the memory to cause the apparatus to perform the method of any of claims 1-20.

24. A computer-readable storage medium comprising a program or instructions for performing the method of any one of claims 1-20 when the program or instructions are run on a computer.

25. A chip coupled to a memory for reading and executing program instructions stored in the memory to perform the method of any of claims 1-20.

26. A feedback information transmission apparatus comprising a processor and a memory, the processor coupled with the memory;

a memory for storing a computer program;

a processor for executing a computer program stored in the memory to cause the apparatus to perform the method of any of claims 21-22.

27. A computer-readable storage medium comprising a program or instructions for performing the method of any of claims 21-22 when the program or instructions are run on a computer.

28. A chip coupled to a memory for reading and executing program instructions stored in the memory to perform the method of any of claims 21-22.