WO2018145502A1

WO2018145502A1 - Re-transmission feedback and triggering method, device and computer storage medium

Info

Publication number: WO2018145502A1
Application number: PCT/CN2017/112878
Authority: WO
Inventors: 王文焕; 杨瑾; 黄双红; 陈杰; 卢有雄
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-02-07
Filing date: 2017-11-24
Publication date: 2018-08-16
Also published as: CN108400843B; CN108400843A

Abstract

Disclosed in the present application are a re-transmission feedback and triggering method, a device and a computer storage medium, comprising: receiving a control channel for a broadcast message; decoding and verifying a service channel in a resource indicated by the control channel if the decoding and verification of the control channel are correct; obtaining feedback information corresponding to the broadcast message according to the result of the decoding and verification of the service channel; measuring a channel parameter; determining whether it is required to feed back the feedback information in the feedback channel according to the feedback information and the channel parameter; when needed, encoding and modulating the feedback information, and then spread-spectrum mapping the same to the feedback channel in a time-frequency domain and transmitting. Receiving the feedback information in the feedback channel, decoding the feedback information, and measuring energy of the feedback channel; and determining whether it is required to trigger a re-transmission process according to at least one of the following: a decoding result of the feedback information, the energy of the feedback channel, the number of the feedback channels, and the type of the broadcast message.

Description

一种重传反馈及触发方法、装置、计算机存储介质Retransmission feedback and triggering method, device and computer storage medium

相关申请的交叉引用Cross-reference to related applications

本申请基于申请号为201710068023.X、申请日为2017年02月07日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。The present application is filed on the basis of the Chinese Patent Application No. PCT Application No.

技术领域Technical field

本申请涉及移动通信领域，尤其涉及一种广播***的重传反馈及触发方法、装置、计算机存储介质。The present application relates to the field of mobile communications, and in particular, to a retransmission feedback and triggering method and apparatus for a broadcast system, and a computer storage medium.

背景技术Background technique

在移动通讯领域，广播通讯通常是一对多通讯，主要有基站广播消息和车联网***的一对多通讯。而对于车联网***的广播通讯由于要求较高的可靠性，需要进一步通过反馈和重传来提高广播通讯的可靠性。In the field of mobile communications, broadcast communication is usually one-to-many communication, mainly one-to-many communication of base station broadcast messages and car networking systems. For the broadcast communication of the Internet of Vehicles system, due to the high reliability, it is necessary to further improve the reliability of the broadcast communication through feedback and retransmission.

车联网***是指通过装载在车辆上的传感器、车载终端及电子标签等设备提供车辆信息，采用各种通信技术实现车与车(V2V，Vehicle to Vehicle)、车与人(V2P，Vehicle to Person)、车与基础设施(V2I，Vehicle to Infrastructure)之间的互连互通，并在信息网络平台上对信息进行提取、共享等有效利用，对车辆进行有效的管控和提供综合服务的***。车联网可以实现基于通信的车辆信息通知及碰撞危险预警，通过利用先进的无线通信技术和新一代信息处理技术，实现车与车、车与路侧基础设施间的实时信息交互，告知彼此目前的状态(包括车辆的位置、速度、加速度、行驶路径)及获知的道路环境信息，协作感知道路危险状况，及时提供多种碰撞预警信息，防止道路交通安全事故的发生，成为当前解决道路交通安全问题的一种新的思路。The vehicle networking system refers to providing vehicle information through sensors, vehicle terminals, and electronic tags mounted on the vehicle, and adopts various communication technologies to realize V2V (Vehicle to Vehicle) and Vehicle to Person (V2P, Vehicle to Person). ), the interconnection between the vehicle and the infrastructure (V2I, Vehicle to Infrastructure), and the effective use of information extraction and sharing on the information network platform, effective control of the vehicle and provision of integrated services. Vehicle networking can realize communication-based vehicle information notification and collision hazard warning. By using advanced wireless communication technology and next-generation information processing technology, real-time information interaction between vehicle, vehicle, and roadside infrastructure can be realized, and each other can be informed. State (including vehicle position, speed, acceleration, driving route) and learned road environment information, collaboratively aware of road hazard conditions, timely provide a variety of collision warning information to prevent road traffic safety accidents, and become the current road traffic safety A new idea of the problem.

V2X通信***中主要以广播的通信方式为主，由各个UE分别发送自身待通知的广播消息，众所周知，广播***通常存在无法获知接收UE的状态，通常以较低的码率及固定重传技术来保证接收的可靠性，由于接收设备众多，有接收正确的UE，也有接收错误的UE，因此无法有效反馈，从而较难使用自适应重传来提高可靠性。In the V2X communication system, the broadcast communication mode is mainly used, and each UE separately transmits a broadcast message to be notified by itself. It is well known that the broadcast system usually cannot know the state of the receiving UE, and usually has a lower code rate and a fixed retransmission technology. To ensure the reliability of the reception, since there are many receiving devices, there are UEs that receive the correct UE, and UEs that receive the error, so the feedback cannot be effectively performed, and it is difficult to use the adaptive retransmission to improve the reliability.

申请内容Application content

为解决上述技术问题，本申请实施例提供了一种重传反馈及触发方法、装置、计算机存储介质。To solve the above technical problem, the embodiment of the present application provides a retransmission feedback and triggering method, device, and computer storage medium.

本申请实施例提供的重传反馈方法，包括：The retransmission feedback method provided by the embodiment of the present application includes:

获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息；Obtaining at least one of the following feedback information corresponding to the broadcast message: ACK information, NACK information;

测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；Measuring at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, distance between the broadcast message receiving end and the broadcast message transmitting end;

根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；Determining whether feedback of the feedback information needs to be performed on the feedback channel according to the feedback information and the channel parameter;

如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。If feedback of the feedback information needs to be performed on the feedback channel, the feedback information is coded and modulated and then spread-spread on the time-frequency domain to be transmitted on the feedback channel.

本申请实施例中，所述获得广播消息对应的如下反馈信息的至少之一：肯定确认ACK信息、否定确认NACK信息，包括：In the embodiment of the present application, the at least one of the following feedback information corresponding to the broadcast message is obtained: the positive acknowledgement ACK information and the negative acknowledgement NACK information, including:

接收广播消息的控制信道，对所述控制信道进行解码校验；Receiving a control channel of the broadcast message, performing decoding and verification on the control channel;

如果对所述控制信道解码校验正确，则在所述控制信道所指示的资源上解码校验业务信道；If the decoding of the control channel is correctly verified, decoding the verification traffic channel on the resource indicated by the control channel;

根据所述业务信道的解码校验结果，获得所述广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。 Obtaining at least one of the following feedback information corresponding to the broadcast message according to the decoding and verifying result of the traffic channel: ACK information, NACK information.

本申请实施例中，所述判别是否需要在反馈信道上进行反馈信息的反馈，包括：采用判决准则判别是否需要在反馈信道上进行反馈信息的反馈；其中，所述判决准则包括以下至少之一：In the embodiment of the present application, the determining whether the feedback of the feedback information needs to be performed on the feedback channel includes: determining, by using a decision criterion, whether feedback of the feedback information needs to be performed on the feedback channel; wherein the decision criterion includes at least one of the following :

如果满足以下条件至少之一，则在ACK反馈信道上反馈ACK信息：解码校验业务信道为ACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值；If at least one of the following conditions is met, the ACK information is fed back on the ACK feedback channel: the decoded check traffic channel is ACK information, the energy of the traffic channel is greater than the first energy threshold, and the distance between the broadcast message receiving end and the broadcast message sending end is less than First distance threshold;

如果满足以下条件至少之一，则在第一NACK反馈信道上反馈NACK信息：解码校验业务信道为NACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值；If the at least one of the following conditions is met, the NACK information is fed back on the first NACK feedback channel: the decoded check traffic channel is NACK information, the energy of the traffic channel is greater than the first energy threshold, and the broadcast message receiving end and the broadcast message sending end The distance is less than the first distance threshold;

如果满足以下条件至少之一，则在第二NACK反馈信道上反馈NACK信息：解码校验控制信道为NACK信息、控制信道的能量大于第二能量门限值，广播消息接收端与广播消息发送端的距离小于第二距离门限值、存在第二NACK反馈信道。If the at least one of the following conditions is met, the NACK information is fed back on the second NACK feedback channel: the decoding check control channel is NACK information, the energy of the control channel is greater than the second energy threshold, and the broadcast message receiving end and the broadcast message sending end The distance is less than the second distance threshold and there is a second NACK feedback channel.

本申请实施例中，所述将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，包括：In the embodiment of the present application, the feedback information is coded and modulated, and then spread-spread on the time-frequency domain to be sent to the feedback channel, where:

将编码调制后的反馈信息在频域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列。The coded modulated feedback information is multiplied in the frequency domain by the following orthogonal sequence: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from within the orthogonal sequence group.

将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列、或根据发送端UE的PSCCH指示选择对应的正交序列、或根据接收UE的特征选择对应的正交序列。Multiplying the coded modulated feedback information by the following orthogonal sequence in the time domain: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from within the orthogonal sequence group, or selecting a corresponding orthogonal according to a PSCCH indication of the transmitting UE The sequence, or the corresponding orthogonal sequence is selected according to the characteristics of the receiving UE.

本申请实施例提供的重传触发方法，包括：The retransmission triggering method provided by the embodiment of the present application includes:

在反馈信道上接收反馈信息并对所述反馈信息进行解码，以及测量反馈信道的能量； Receiving feedback information on the feedback channel and decoding the feedback information, and measuring energy of the feedback channel;

根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。Determining whether a retransmission process needs to be triggered according to at least one of the following: a decoding result of the feedback information, an energy of the feedback channel, a quantity of the feedback channel, and a type of a broadcast message.

本申请实施例中，所述判别是否需要触发重传过程，包括：采用判决准则判别是否需要触发重传过程；其中，所述判决准则包括以下至少之一：In the embodiment of the present application, the determining whether the retransmission process needs to be triggered includes: determining, by using a decision criterion, whether a retransmission process needs to be triggered; wherein the decision criterion includes at least one of the following:

如果NACK反馈信道的能量大于第一预设值，则触发重传过程；If the energy of the NACK feedback channel is greater than the first preset value, triggering a retransmission process;

如果NACK反馈信道的能量与ACK反馈信道的能量比值大于第二预设值，则触发重传过程；If the energy ratio of the energy of the NACK feedback channel to the ACK feedback channel is greater than a second preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目大于第三预设值，则触发重传过程；If the number of NACK information in the feedback information is greater than a third preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目与ACK反馈信道的数目比值大于第四预设值，则触发重传过程；If the ratio of the number of NACK information in the feedback information to the number of ACK feedback channels is greater than a fourth preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目与所需反馈信道的数目比值大于第五预设值，则触发重传过程；If the ratio of the number of NACK information in the feedback information to the number of required feedback channels is greater than a fifth preset value, triggering a retransmission process;

如果所需反馈信道的数目与反馈信息中的NACK信息的数目以及ACK信息的数目之和的比值大于第六预设值，则触发重传过程。If the ratio of the number of required feedback channels to the sum of the number of NACK information and the number of ACK information in the feedback information is greater than the sixth preset value, the retransmission process is triggered.

本申请实施例中，所述反馈信道满足以下配置的至少之一：In this embodiment of the present application, the feedback channel satisfies at least one of the following configurations:

反馈信道的资源与广播消息的控制信道和/或数据信道具有一一对应关系；The resources of the feedback channel have a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

多个广播消息的控制信道和/或数据信道对应一个NACK信息的资源，反馈信息采用的码字与广播消息的控制信道和/或数据信道具有一一对应关系；The control channel and/or the data channel of the plurality of broadcast messages correspond to a resource of the NACK information, and the codeword used by the feedback information has a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

其中，所述一一对应关系通过以下方式的至少之一确定：预配置方式、协商方式、广播消息发送端指示的方式。The one-to-one correspondence is determined by at least one of the following manners: a pre-configuration mode, a negotiation mode, and a manner indicated by a broadcast message sending end.

本申请实施例中，所述反馈信道包括以下至少之一：一个NACK信道、一对ACK、NACK信道、一对ACK、NACK信道、第二个NACK信道。 In this embodiment, the feedback channel includes at least one of: a NACK channel, a pair of ACKs, a NACK channel, a pair of ACKs, a NACK channel, and a second NACK channel.

本申请实施例中，所述广播消息发送端指示的方式包括以下至少之一：In the embodiment of the present application, the manner indicated by the sending end of the broadcast message includes at least one of the following:

广播消息发送端指示是否需要在一一对应的反馈信息的资源上进行反馈；The broadcast message sending end indicates whether it is required to perform feedback on the resources of the one-to-one corresponding feedback information;

广播消息发送端指示反馈信息、反馈信息的资源。The broadcast message sender indicates the resources of the feedback information and the feedback information.

本申请实施例中，所述反馈信息的资源通过以下指示方式的至少之一进行指示：In the embodiment of the present application, the resource of the feedback information is indicated by at least one of the following indication manners:

采用固定时域偏置的反馈资源的索引index进行指示、采用时域进行指示、采用频域进行指示、采用时频域组合进行指示。The index index of the feedback resource with fixed time domain offset is used for indication, the time domain is used for indication, the frequency domain is used for indication, and the time-frequency domain combination is used for indication.

本申请实施例中，所述反馈信息的资源为一组正交码组，其中，所述正交码组中的每个码字对应一个序号。In the embodiment of the present application, the resource of the feedback information is a set of orthogonal code groups, where each codeword in the orthogonal code group corresponds to a sequence number.

本申请实施例中，所述广播消息为周期性广播消息，所述方法还包括：In this embodiment, the broadcast message is a periodic broadcast message, and the method further includes:

在广播消息的下一次发送周期，调整发送次数、调制与编码策略或功率参数；或者，Adjust the number of transmissions, modulation and coding strategy, or power parameters in the next transmission period of the broadcast message; or,

在广播消息的本周期，重新为广播消息选择资源，调整发送次数、调制与编码策略或功率参数。During the current period of the broadcast message, resources are re-selected for the broadcast message, and the number of transmissions, modulation and coding strategies, or power parameters are adjusted.

本申请实施例提供的重传反馈装置，包括：The retransmission feedback device provided by the embodiment of the present application includes:

获取单元，配置为获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息；An obtaining unit, configured to obtain at least one of the following feedback information corresponding to the broadcast message: ACK information, NACK information;

测量单元，配置为测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；a measuring unit configured to measure at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, distance between the broadcast message receiving end and the broadcast message sending end;

决策单元，配置为根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；a decision unit, configured to determine, according to the feedback information, the channel parameter, whether feedback of feedback information needs to be performed on a feedback channel;

发送单元，配置为如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。The sending unit is configured to: if feedback of the feedback information needs to be performed on the feedback channel, the feedback information is coded and modulated and then spread-spread on the time-frequency domain and transmitted to the feedback channel for transmission.

本申请实施例中，所述装置还包括： In the embodiment of the present application, the device further includes:

接收单元，配置为接收广播消息的控制信道；a receiving unit configured to receive a control channel of a broadcast message;

解码校验单元，配置为对所述控制信道进行解码校验；如果对所述控制信道解码校验正确，则在所述控制信道所指示的资源上解码校验业务信道；a decoding check unit configured to perform decoding check on the control channel; if the decoding of the control channel is correctly verified, decoding a check traffic channel on a resource indicated by the control channel;

所述获取单元，配置为根据所述业务信道的解码校验结果，获得所述广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。The acquiring unit is configured to obtain at least one of the following feedback information corresponding to the broadcast message according to the decoding and verification result of the traffic channel: ACK information and NACK information.

本申请实施例中，所述决策单元，配置为采用判决准则判别是否需要在反馈信道上进行反馈信息的反馈；其中，所述判决准则包括以下至少之一：In the embodiment of the present application, the determining unit is configured to determine, by using a decision criterion, whether feedback of feedback information needs to be performed on a feedback channel, where the decision criterion includes at least one of the following:

本申请实施例中，所述装置还包括：In the embodiment of the present application, the device further includes:

处理单元，配置为根据所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，将编码调制后的反馈信息在频域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列。The processing unit is configured to perform coded modulation on the time-frequency domain according to the feedback information and transmit to the feedback channel, and multiply the coded and modulated feedback information in the frequency domain by the following orthogonal sequence: a fixed orthogonal sequence, Or orthogonal sequences randomly selected from within the orthogonal sequence set.

本申请实施例中，所述处理单元，配置为将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列、或根据发送端UE的PSCCH指示选择对应的正交序列、或根据接收UE的特征选择对应的正交序列。In this embodiment, the processing unit is configured to multiply the coded and modulated feedback information in the time domain by the following orthogonal sequence: a fixed orthogonal sequence, or randomly selected from the orthogonal sequence group. The orthogonal sequence, or the corresponding orthogonal sequence is selected according to the PSCCH indication of the transmitting UE, or the corresponding orthogonal sequence is selected according to the characteristics of the receiving UE.

本申请实施例提供的重传触发装置，包括：The retransmission triggering device provided by the embodiment of the present application includes:

接收单元，配置为在反馈信道上接收反馈信息并对所述反馈信息进行解码；a receiving unit configured to receive feedback information on a feedback channel and decode the feedback information;

测量单元，配置为测量反馈信道的能量；a measuring unit configured to measure energy of the feedback channel;

决策单元，配置为根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。The decision unit is configured to determine whether a retransmission process needs to be triggered according to at least one of: a decoding result of the feedback information, an energy of the feedback channel, a quantity of the feedback channel, and a type of a broadcast message.

本申请实施例中，所述决策单元，配置为采用判决准则判别是否需要触发重传过程；其中，所述判决准则包括以下至少之一：In the embodiment of the present application, the determining unit is configured to determine, by using a decision criterion, whether a retransmission process needs to be triggered, where the decision criterion includes at least one of the following:

反馈信道的资源与广播消息的控制信道和/或数据信道具有一一对应关系； The resources of the feedback channel have a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

本申请实施例中，所述反馈信道包括以下至少之一：一个NACK信道、一对ACK、NACK信道、一对ACK、NACK信道、第二个NACK信道。In this embodiment, the feedback channel includes at least one of: a NACK channel, a pair of ACKs, a NACK channel, a pair of ACKs, a NACK channel, and a second NACK channel.

采用固定时域偏置的反馈资源的index进行指示、采用时域进行指示、采用频域进行指示、采用时频域组合进行指示。The index of the feedback resource with fixed time domain offset is used for indication, the time domain is used for indication, the frequency domain is used for indication, and the time-frequency domain combination is used for indication.

本申请实施例中，所述广播消息为周期性广播消息，所述装置还包括：In this embodiment, the broadcast message is a periodic broadcast message, and the device further includes:

处理单元，配置为在广播消息的下一次发送周期，调整发送次数、调制与编码策略或功率参数；或者，在广播消息的本周期，重新为广播消息选择资源，调整发送次数、调制与编码策略或功率参数。The processing unit is configured to adjust the number of transmissions, the modulation and coding strategy, or the power parameter in the next transmission period of the broadcast message; or, in the current period of the broadcast message, re-select resources for the broadcast message, adjust the number of transmissions, modulation, and coding strategy Or power parameters.

本申请实施例还提供一种计算机存储介质，该计算机存储介质存储有计算机程序，该计算机程序配置为执行上述重传反馈方法或重传触发方法。The embodiment of the present application further provides a computer storage medium storing a computer program configured to execute the above-mentioned retransmission feedback method or retransmission trigger method.

本申请实施例的技术方案中，获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息；测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。在反馈信道上接收反馈信息并对所述反馈信息进行解码，以及测量反馈信道的能量；根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。采用本申请实施例的技术方案，提高了广播***的可靠性及***资源的利用效率。In the technical solution of the embodiment of the present application, at least one of the following feedback information corresponding to the broadcast message is obtained: ACK information, NACK information; and at least one of the following channel parameters is measured: a control signal The energy of the channel, the energy of the traffic channel, the distance between the broadcast message receiving end and the broadcast message sending end; determining whether feedback of the feedback information needs to be performed on the feedback channel according to the feedback information and the channel parameter; if needed on the feedback channel After the feedback of the feedback information is performed, the feedback information is coded and modulated, and then spread-spread on the time-frequency domain and transmitted to the feedback channel for transmission. Receiving feedback information on the feedback channel and decoding the feedback information, and measuring energy of the feedback channel; determining whether a retransmission process needs to be triggered according to at least one of: decoding result of the feedback information, the feedback channel Energy, the number of feedback channels, the type of broadcast message. The technical solution of the embodiment of the present application improves the reliability of the broadcast system and the utilization efficiency of the system resources.

附图说明DRAWINGS

附图以示例而非限制的方式大体示出了本文中所讨论的各个实施例。The drawings generally illustrate the various embodiments discussed herein by way of example and not limitation.

图1为本申请实施例的重传反馈方法的流程示意图；FIG. 1 is a schematic flowchart diagram of a retransmission feedback method according to an embodiment of the present application;

图2为本申请实施例的重传触发方法的流程示意图；2 is a schematic flowchart of a retransmission triggering method according to an embodiment of the present application;

图3为本申请实施例的重传反馈装置的结构组成示意图；3 is a schematic structural diagram of a retransmission feedback apparatus according to an embodiment of the present application;

图4为本申请实施例的重传触发装置的结构组成示意图；4 is a schematic structural diagram of a retransmission triggering device according to an embodiment of the present application;

图5为本申请实施例的场景示意图。FIG. 5 is a schematic diagram of a scenario according to an embodiment of the present application.

具体实施方式detailed description

为了能够更加详尽地了解本申请实施例的特点与技术内容，下面结合附图对本申请实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本申请实施例。The embodiments of the present application are described in detail with reference to the accompanying drawings.

现有的广播***不支持反馈技术，通常以开环结构设计，传输效率较低，可靠性较低，而V2X***要求较高的可靠性，TR22.886提出一些场景的可靠性要求在99.999％，因此提高广播机制的可靠性及传输效率成为研究热点。The existing broadcast system does not support feedback technology, usually designed in an open-loop structure, with low transmission efficiency and low reliability, while the V2X system requires high reliability. TR22.886 proposes that the reliability requirements of some scenarios are 99.999%. Therefore, improving the reliability and transmission efficiency of the broadcasting mechanism has become a research hotspot.

本申请提出了一种用于广播***的重传反馈及触发方法、装置，参照图5，通过广播消息接收覆盖内的接收端判决反馈条件在反馈信道上进行反馈，广播消息发送端接收和测量反馈信道资源上的能量或/和数量，结合发送信息的类别，触发调整半恒定调度的下一个周期传输的编码速率，功率控制等参数或在本周期内触发重传资源选择，调整编码速率，功率控制等参数，提高广播***的可靠性及***资源的利用效率。The present application provides a retransmission feedback and triggering method and apparatus for a broadcast system, and a reference is made to 5, the feedback feedback condition of the receiving end in the broadcast message receiving coverage is fed back on the feedback channel, and the broadcast message transmitting end receives and measures the energy or/and the quantity on the feedback channel resource, and triggers the adjustment semi-constant according to the type of the transmitted information. The coding rate, power control and other parameters transmitted in the next cycle of the scheduling may trigger the selection of retransmission resources in the current period, adjust the coding rate, power control and other parameters, and improve the reliability of the broadcasting system and the utilization efficiency of the system resources.

基于LTE的V2V通信***中，使用***上行子帧作为物理链路控制信道(PSCCH，Physical Sidelink Control Channel)子帧和物理链路共享信道(PSSCH，Physical Sidelink Shared Channel)子帧，用于传输V2V控制和数据业务。发送端UE在链路(即Sidelink链路)控制信道中通过链路控制信息(SCI，Sidelink Control Information)指示所使用的PSSCH资源，并在相应的数据信道资源上传输V2V数据信息。In the LTE-based V2V communication system, the system uplink subframe is used as a Physical Link Control Channel (PSCCH) subframe and a Physical Sidelink Shared Channel (PSSCH) subframe for transmitting V2V. Control and data services. The transmitting UE indicates the used PSSCH resource through link control information (SCI, Sidelink Control Information) in the link (ie, Sidelink link) control channel, and transmits V2V data information on the corresponding data channel resource.

每个V2V资源子帧所包含的所有RBs被划分为多个子信道(sub channel)，每个sub channel中包含多个连续的RBs，在RBs中索引(index)最小的2个RB作为PSCCH资源，即PSCCH资源池(PSCCH resource pool)整体上在频域上呈离散分布，也可以理解为PSCCH resource pool内嵌在PSSCH resource pool中。实际使用中，若sub-channel中的PSCCH资源未被用于承载SCI，则可作为PSSCH资源使用，承载V2V数据(V2V data)。或者PSCCH集中分布，PSCCH与PSSCH在同一子帧资源池独立，每个PSCCH与一个sub channel一一对应。Each RBs included in each V2V resource sub-frame is divided into a plurality of sub-channels, each sub-channel includes a plurality of consecutive RBs, and the two RBs with the smallest index in the RBs are used as PSCCH resources. That is, the PSCCH resource pool is discretely distributed in the frequency domain as a whole, and it can also be understood that the PSCCH resource pool is embedded in the PSSCH resource pool. In actual use, if the PSCCH resource in the sub-channel is not used to carry the SCI, it can be used as a PSSCH resource and carry V2V data (V2V data). Or the PSCCH is distributed in a centralized manner, and the PSCCH and the PSSCH are independent in the same subframe resource pool, and each PSCCH has a one-to-one correspondence with a sub channel.

本申请实施例的技术方案同样适用于新一代无线通信(NR，New Radio)***。The technical solutions of the embodiments of the present application are also applicable to a new generation wireless communication (NR, New Radio) system.

图1为本申请实施例的重传反馈方法的流程示意图，应用于广播消息接收端，如图1所示，所述方法包括以下步骤：FIG. 1 is a schematic flowchart of a retransmission feedback method according to an embodiment of the present disclosure, which is applied to a broadcast message receiving end, as shown in FIG. 1 , the method includes the following steps:

步骤101：获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。 Step 101: Obtain at least one of the following feedback information corresponding to the broadcast message: ACK information, NACK information.

根据所述业务信道的解码校验结果，获得所述广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。Obtaining at least one of the following feedback information corresponding to the broadcast message according to the decoding and verifying result of the traffic channel: ACK information, NACK information.

步骤102：测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离。Step 102: Measure at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, distance between the broadcast message receiving end and the broadcast message sending end.

步骤103：根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈。Step 103: Determine, according to the feedback information and the channel parameter, whether feedback of feedback information needs to be performed on a feedback channel.

这里，采用判决准则判别是否需要在反馈信道上进行反馈信息的反馈；其中，所述判决准则包括以下至少之一：Here, the decision criterion is used to determine whether feedback of the feedback information needs to be performed on the feedback channel; wherein the decision criterion includes at least one of the following:

步骤104：如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。 Step 104: If feedback of the feedback information needs to be performed on the feedback channel, the feedback information is code-modulated and then spread-spread on the time-frequency domain to be transmitted on the feedback channel.

这里，所述将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，包括：Here, the coding information is coded and modulated and then spread-spread on the time-frequency domain to be transmitted on the feedback channel, including:

所述将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，包括：将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列、或根据发送端UE的PSCCH指示选择对应的正交序列、或根据接收UE的特征选择对应的正交序列。这里，UE的特征例如是UE标识(UEID)。Transmitting, by the coded, the feedback information in a time-frequency domain to the feedback channel, the method includes: multiplying the coded and modulated feedback information in the time domain by the following orthogonal sequence: a fixed orthogonal sequence, or The orthogonal sequence randomly selected from the orthogonal sequence group, or the corresponding orthogonal sequence is selected according to the PSCCH indication of the transmitting UE, or the corresponding orthogonal sequence is selected according to the characteristics of the receiving UE. Here, the feature of the UE is, for example, a UE identity (UEID).

图2为本申请实施例的重传触发方法的流程示意图，应用于广播消息发送端，如图2所示，所述方法包括以下步骤：FIG. 2 is a schematic flowchart of a retransmission triggering method according to an embodiment of the present disclosure, which is applied to a broadcast message sending end, as shown in FIG. 2, the method includes the following steps:

步骤201：在反馈信道上接收反馈信息并对所述反馈信息进行解码，以及测量反馈信道的能量。Step 201: Receive feedback information on the feedback channel and decode the feedback information, and measure energy of the feedback channel.

步骤202：根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。Step 202: Determine whether a retransmission process needs to be triggered according to at least one of the following: a decoding result of the feedback information, an energy of the feedback channel, a quantity of the feedback channel, and a type of a broadcast message.

这里，采用判决准则判别是否需要触发重传过程；其中，所述判决准则包括以下至少之一：Here, the decision criterion is used to determine whether a retransmission process needs to be triggered; wherein the decision criterion includes at least one of the following:

如果反馈信息中的NACK信息的数目与ACK反馈信道的数目比值大于第四预设值，则触发重传过程； If the ratio of the number of NACK information in the feedback information to the number of ACK feedback channels is greater than a fourth preset value, triggering a retransmission process;

这里，所述反馈信道满足以下配置的至少之一：Here, the feedback channel satisfies at least one of the following configurations:

这里，所述反馈信道包括以下至少之一：一个NACK信道、一对ACK、NACK信道、一对ACK、NACK信道、第二个NACK信道。Here, the feedback channel includes at least one of: a NACK channel, a pair of ACKs, a NACK channel, a pair of ACKs, a NACK channel, and a second NACK channel.

这里，所述广播消息发送端指示的方式包括以下至少之一：Here, the manner indicated by the broadcast message sending end includes at least one of the following:

这里，所述反馈信息的资源通过以下指示方式的至少之一进行指示：Here, the resource of the feedback information is indicated by at least one of the following indication manners:

这里，所述反馈信息的资源为一组正交码组，其中，所述正交码组中的每个码字对应一个序号。Here, the resource of the feedback information is a set of orthogonal code groups, wherein each codeword in the orthogonal code group corresponds to a sequence number.

这里，所述广播消息为周期性广播消息，所述方法还包括：Here, the broadcast message is a periodic broadcast message, and the method further includes:

在广播消息的下一次发送周期，调整发送次数、调制与编码策略或功率参数；或者，Adjust the number of transmissions, modulation and coding strategies, or work during the next transmission cycle of the broadcast message. Rate parameter; or,

以下结合具体应用场景对本申请实施例的技术方案做进一步详细说明。The technical solutions of the embodiments of the present application are further described in detail below with reference to specific application scenarios.

实施例一 Embodiment 1

反馈信道资源的位置可以包括以下几种：The location of the feedback channel resource can include the following:

1)PSCCH/PSSCH与反馈信道一一对应1) One-to-one correspondence between PSCCH/PSSCH and feedback channel

具体地，反馈信道的资源在PSCCH/PSSCH选择之后的固定时频域位置。Specifically, the resources of the feedback channel are fixed time-frequency domain locations after PSCCH/PSSCH selection.

这里，反馈信道在反馈信道资源池的index与PSCCH/PSSCH的频域起始index一致，时域固定。其中，反馈信道资源池可以位于频域的任意定义位置与PSCCH/PSSCH资源池频分方式或指定一子信道作为反馈信道资源，或与PSCCH/PSSCH资源池时分方式。Here, the index of the feedback channel in the feedback channel resource pool is consistent with the frequency domain start index of the PSCCH/PSSCH, and the time domain is fixed. The feedback channel resource pool may be located at any defined location in the frequency domain and the PSCCH/PSSCH resource pool frequency division manner or specify a subchannel as a feedback channel resource, or a PSCCH/PSSCH resource pool time division manner.

2)反馈信道信息由PSCCH指示2) Feedback channel information is indicated by PSCCH

反馈信道的类型是一对反馈信道，包括肯定确认(ACK)信道资源和否定确认(NACK)信道资源。其中反馈信道的信息资源可以是以下几种方式。The type of feedback channel is a pair of feedback channels, including positive acknowledgment (ACK) channel resources and negative acknowledgment (NACK) channel resources. The information resources of the feedback channel may be in the following manners.

1)ACK信道资源和NACK信道资源以RB为单位(例如频域上包括12个15k的子载波，时域上包括14个符号)，即ACK信道资源和NACK信道资源各占一个RB。ACK信道资源与NACK信道资源的位置关系可以时域相邻或频域相邻，或按固定图样(pattern)确定，即已知一个反馈资源(如ACK信道资源)的时频位置，就可获得另一个反馈资源(如NACK信道资源)的时频位置。1) The ACK channel resource and the NACK channel resource are in units of RBs (for example, 12 15k subcarriers are included in the frequency domain, and 14 symbols are included in the time domain), that is, the ACK channel resource and the NACK channel resource each occupy one RB. The positional relationship between the ACK channel resource and the NACK channel resource may be adjacent to the time domain or adjacent to the frequency domain, or determined by a fixed pattern, that is, the time-frequency position of a feedback resource (such as an ACK channel resource) is known. The time-frequency location of another feedback resource, such as a NACK channel resource.

2)同一个RB按时隙划分，ACK信道资源和NACK信道资源各占一个时隙。2) The same RB is divided by time slots, and ACK channel resources and NACK channel resources are each occupied. Time slots.

3)ACK信道资源和NACK信道资源以一个或几个符号为单位，频率以N个子载波为单位(例如子载波参数可以是15k，30k，60k，120k等以适应于NR***)。3) The ACK channel resource and the NACK channel resource are in units of one or several symbols, and the frequency is in units of N subcarriers (for example, the subcarrier parameters may be 15k, 30k, 60k, 120k, etc. to adapt to the NR system).

在第一实施方式中，反馈信道的扩频方式采用固定的正交序列，其中·固定序列为双方已知。In the first embodiment, the spreading mode of the feedback channel adopts a fixed orthogonal sequence, wherein the fixed sequence is known to both parties.

在第二实施方式中，反馈信道的扩频方式采用从正交序列组内随机选择的正交序列。In the second embodiment, the spreading scheme of the feedback channel employs an orthogonal sequence randomly selected from within the orthogonal sequence group.

在第三实施方式中，反馈信道的扩频方式采用从正交序列组内随机选择的正交序列，其中发送端设备根据预先互听结果获得统计的在有限范围内的接收UE数目。In the third embodiment, the spreading mode of the feedback channel adopts an orthogonal sequence randomly selected from the orthogonal sequence group, wherein the transmitting end device obtains the statistics of the number of receiving UEs within a limited range according to the pre-interleaving result.

发送端设备：Sending device:

第一步：在V2X资源池上通过侦听或随机选择方式选择用于发送PSCCH/PSSCH的资源，或者基于基站的配置选择用于发送PSCCH/PSSCH的资源。Step 1: Select a resource for transmitting PSCCH/PSSCH by listening or random selection on the V2X resource pool, or select a resource for transmitting PSCCH/PSSCH based on the configuration of the base station.

第二步：在选择的资源上发送PSCCH/PSSCH，其中，PSCCH是指发送PSSCH的资源分配及相关控制信息。The second step: transmitting PSCCH/PSSCH on the selected resource, where PSCCH refers to resource allocation and related control information for transmitting the PSSCH.

第三步：在反馈信道上接收反馈信息。The third step: receiving feedback information on the feedback channel.

在第一实施方式中，发送端在反馈信道上检查ACK/NACK信道能量，根据ACK与NACK的参考信号接收功率(RSRP，Reference Signal Receiving Power)比值及发送的信息类型，选择重发(即重选选择资源重发或在下一个SPS资源调度的资源上发送)且调整发送的调制与编码策略(MCS，Modulation and Coding Scheme)、功率控制等参数，其中，所述发送信息类型可以是优先级信息类型或业务类型等信息，不同信息类型对应的ACK/NACK比值选择重发及自适应调整的参数可以是不同的比值区间。 In the first embodiment, the transmitting end checks the ACK/NACK channel energy on the feedback channel, and selects retransmission according to the ratio of the reference signal received power (RSRP, Reference Signal Receiving Power) of the ACK and the NACK, and the type of the transmitted information. Selecting a resource retransmission or sending on a resource scheduled by the next SPS resource, and adjusting parameters such as a modulation and coding scheme (MCS), power control, and the like, wherein the type of the transmission information may be priority information. Information such as type or service type, ACK/NACK ratio corresponding to different information types, and parameters for retransmission and adaptive adjustment may be different ratio intervals.

在第二实施方式中，发送端在反馈信道的资源按正交码组序列检测ACK，NACK资源上ACK，NACK，并统计解码正确ACK数目，NACK数目，计算ACK/NACK比值，根据比值及发送信息类型，选择重发(即重选选择资源重发或在下一个SPS资源调度的资源上发送)且调整发送的MCS，功率控制等参数，其中正交码组包含N个正交码序列，ACK，NACK在相同正交码组中随机选择。In the second implementation manner, the transmitting end detects the ACK in the orthogonal code group sequence on the resource of the feedback channel, and ACKs and NACKs on the NACK resource, and statistically decodes the correct number of ACKs, the number of NACKs, calculates the ACK/NACK ratio, and according to the ratio and the transmission. Type of information, select retransmission (ie, reselect to select resource retransmission or send on the resource of the next SPS resource scheduling) and adjust parameters such as MCS, power control, etc., where the orthogonal code group contains N orthogonal code sequences, ACK The NACK is randomly selected in the same orthogonal code group.

在第三实施方式中，发送端在反馈信道的资源按正交码组序列检测并统计解码正确ACK数目，NACK数目，计算ACK/NACK比值，及ACK加NACK数目，根据预先互听结果统计的在有限范围内的接收UE数目，如接收UE数目与ACK加NACK数目的比值大于预定义的比例，根据比例，比值及发送信息类型判断是否重传，如果重传则重新选择资源重发或在下一个SPS资源调度的资源上发送，且调整发送的MCS，功率控制等参数。其中，所述有限范围是指距离发送端UE一定距离的区域。In the third embodiment, the transmitting end detects and statistically decodes the correct number of ACKs, the number of NACKs, calculates the ACK/NACK ratio, and the number of ACKs and NACKs in the resources of the feedback channel according to the orthogonal code group sequence, according to the statistics of the pre-interference results. The number of receiving UEs in a limited range, such as the ratio of the number of receiving UEs to the number of ACKs plus NACKs, is greater than a predefined ratio. According to the ratio, the ratio and the type of sending information, it is determined whether to retransmit, and if retransmission, the resource retransmission is reselected or under An SPS resource is scheduled to be transmitted on the resource, and parameters such as the transmitted MCS and power control are adjusted. The limited range refers to an area that is a certain distance from the transmitting end UE.

在第四实施方式中，发送端在反馈信道的资源按正交码组序列检测并统计解码正确ACK数目和/或NACK数目，并根据预先互听结果统计的在有限范围内的接收UE数目。如果检测反馈NACK的数目与所需反馈信道的数目比值大于预定值，或者检测反馈ACK的数目与所需反馈信道的数目比值小于预定值，则根据比例，及比值及发送信息类型判断是否重传，如果重传则重新选择资源重发或在下一个SPS资源调度的资源上发送，且调整发送的MCS，功率控制等参数。In the fourth embodiment, the transmitting end detects and statistically decodes the correct number of ACKs and/or the number of NACKs in the orthogonal code group sequence in the resources of the feedback channel, and counts the number of receiving UEs within a limited range according to the pre-interesting result. If the ratio of the number of detected feedback NACKs to the number of required feedback channels is greater than a predetermined value, or the ratio of the number of detected feedback ACKs to the number of required feedback channels is less than a predetermined value, whether to retransmit according to the ratio, the ratio, and the type of the transmitted information If retransmission, reselect the resource retransmission or send on the resource scheduled by the next SPS resource, and adjust the parameters of the transmitted MCS, power control, and the like.

其中重传及下一个SPS传输参数的调整根据发送信息的重要性，优先级等信息，及获得的ACK，NACK的比值，及或与接收UE的列表等参数调整发送参数范围。The retransmission and the adjustment of the next SPS transmission parameter adjust the transmission parameter range according to the importance of the information to be transmitted, the priority and the like, the obtained ratio of the ACK, the NACK, and the parameter of the receiving UE.

接收端设备：Receiver device:

由于是广播消息，在广播消息覆盖内有多个接收设备接收，其多个接收设计处理一致。Because it is a broadcast message, there are multiple receiving devices receiving within the broadcast message coverage, and multiple connections thereof The design is consistent.

第一步：测量PSCCH及该子帧上所有子信道的RSRP。Step 1: Measure the PSCCH and the RSRP of all subchannels on the subframe.

第二步：接收端用户盲检所有PSCCH。Step 2: The receiving end user blindly checks all PSCCHs.

第三步：PSCCH解码正确则根据解码的PSCCH信息在其指示的资源上解码PSSCH，根据解码结果选择进一步的处理，其中处理过程包括以下过程的一个或任意组合：The third step: the PSCCH decoding is correct, the PSSCH is decoded on the indicated resource according to the decoded PSCCH information, and further processing is selected according to the decoding result, wherein the processing includes one or any combination of the following processes:

解码正确则执行第四步，If the decoding is correct, perform the fourth step.

解码错误则执行第五步。The decoding error is performed in the fifth step.

不进行反馈。No feedback is given.

这里，如果PSCCH解码错误，则执行第六步。Here, if the PSCCH decoding is wrong, the sixth step is performed.

第四步：根据PSSCH资源所占用的子信道的RSPR的平均值和设定的RSPR的门限值(门限值最小可以设定为-128dBm)，当RSRP大于门限值或和测量距离小于门限值时在配置的ACK信道资源上反馈接收正确信息，其中，所述测量距离是指接收UE与发送UE之间的距离，下文中若无特别说明，含义相同Step 4: According to the average value of the RSPR of the subchannel occupied by the PSSCH resource and the set threshold of the RSPR (the threshold value may be set to -128 dBm), when the RSRP is greater than the threshold or the measurement distance is less than When the threshold value is received, the correct information is fed back on the configured ACK channel resource, where the measured distance refers to the distance between the receiving UE and the transmitting UE, and the meaning is the same unless otherwise specified.

在第一实施方式中，ACK信息经过调制编码后按固定的正交码字进行时域频域扩频后，映射到ACK反馈信道资源上(加扰码字组内码字正交)，这里固定的码字可以通过PSCCH索引获得(与PSCCH一一对应)，或通过PSCCH解码获得，此时多个接收用户解码为ACK的用户采用相同的码子在相同的反馈资源上发送。In the first embodiment, the ACK information is modulated and coded, and then spread in a time domain frequency domain according to a fixed orthogonal codeword, and then mapped to an ACK feedback channel resource (the codeword orthogonal in the scrambling codeword group), where The fixed codewords can be obtained through the PSCCH index (one-to-one correspondence with the PSCCH), or obtained by PSCCH decoding. At this time, users who are decoded by the multiple receiving users into ACKs are transmitted on the same feedback resource by using the same code.

在第二、第三实施方式中，ACK信息经过调制编码后按随机方式从正交序列组内选择正交序列码字，多个接收相同广播信道的用户解码为ACK，在正交码组中随机选择正交码序列，进行时频域扩频后，映射到ACK反馈信道资源上，即多个用户通过正交码扩频映射到针对同一发送的广播信道所对应的ACK反馈信道物理资源上。 In the second and third embodiments, the ACK information is modulated and encoded, and the orthogonal sequence codeword is selected from the orthogonal sequence group in a random manner, and the plurality of users receiving the same broadcast channel are decoded into ACK, in the orthogonal code group. The orthogonal code sequence is randomly selected and then spread in the time-frequency domain and then mapped to the ACK feedback channel resource, that is, multiple users are mapped by the orthogonal code to the physical resources of the ACK feedback channel corresponding to the same transmitted broadcast channel. .

第五步：根据PSSCH资源所占用的子信道的RSPR的平均值和设定的RSPR的门限值(门限值最小可以设定为-128dBm)，当RSRP大于门限值或和测量距离小于门限时在配置的NACK信道资源上反馈接收错误信息。在第一实施方式中，NACK信息经过调制编码后按固定的正交码字进行时域频域扩频后，映射到NACK反馈信道资源上(加扰码字组内码字正交)，这里固定的码字可以通过PSCCH索引获得，或通过PSCCH解码获得，此时多个接收用户解码为NACK的用户采用相同的码子在相同的反馈资源上发送。Step 5: According to the average value of the RSPR of the subchannel occupied by the PSSCH resource and the set threshold of the RSPR (the threshold value can be set to -128 dBm minimum), when the RSRP is greater than the threshold or the measurement distance is less than The threshold error is received on the configured NACK channel resource. In the first embodiment, the NACK information is modulated and encoded, and then spread in a time domain frequency domain according to a fixed orthogonal codeword, and then mapped to a NACK feedback channel resource (the codeword orthogonal in the scrambling codeword group), where The fixed codeword can be obtained through the PSCCH index or obtained by PSCCH decoding. At this time, users who are decoded by the multiple receiving users into NACKs are sent on the same feedback resource by using the same code.

在第二、第三实施方式中，NACK信息经过调制编码后按随机方式从正交序列组内选择正交序列码字，多个接收相同广播信道用户解码为NACK，在正交码组中随机选择正交码序列，进行时频域扩频后，映射到针对同一发送的广播信道所对应NACK反馈信道资源上。In the second and third embodiments, the NACK information is modulated and encoded, and the orthogonal sequence codeword is selected from the orthogonal sequence group in a random manner, and the plurality of users receiving the same broadcast channel are decoded into NACK, and are randomly selected in the orthogonal code group. The orthogonal code sequence is selected, and the time-frequency domain is spread, and then mapped to the NACK feedback channel resource corresponding to the same transmitted broadcast channel.

第六步：当PSCCH解码错误或检测PSCCH资源所占用的子信道的RSPR的平均值大于门限值或和测量距离小于门限时，如果有专用的PSCCH反馈信道，NACK信息经过调制编码后按预定义码字或在加扰码字组随机选正交码字进行时域频域扩频后，映射到NACK反馈信道资源上(加扰码字组内码字正交)，其过程与第五步类似，或者在PSSCH的反馈信道上按第五步进行反馈。Step 6: When the PSCCH decoding error or the average value of the RSPR of the subchannel occupied by the PSCCH resource is greater than the threshold or the measurement distance is less than the threshold, if there is a dedicated PSCCH feedback channel, the NACK information is modulated and encoded. Defining a codeword or randomly selecting an orthogonal codeword in a scrambling codeword block for time domain frequency domain spreading, and mapping to a NACK feedback channel resource (the codeword orthogonal in the scrambling codeword group), the process and the fifth The steps are similar, or feedback is performed in the fifth step on the feedback channel of the PSSCH.

实施例二：通知需要反馈Embodiment 2: Notification requires feedback

发送端设备：Sending device:

第一步：在V2X资源池上通过侦听或随机选择方式选择用于发送的PSCCH/PSSCH资源，且通过PSCCH指示是否需要反馈或指示反馈资源。指示方案如下：Step 1: Select the PSCCH/PSSCH resource for transmission by listening or randomly selecting on the V2X resource pool, and indicate whether the feedback resource needs to be fed back or indicated through the PSCCH. The indication scheme is as follows:

1)1bit指示是否反馈1) 1bit indication is feedback

反馈资源与PSCCH一一对应 Feedback resources and PSCCH one-to-one correspondence

其中反馈信道资源仅配置NACK；The feedback channel resource is only configured with a NACK;

其中反馈信道资源配置ACK和NACK资源对。The feedback channel resource configures an ACK and a NACK resource pair.

2)反馈资源的指示方法2) Method of indicating feedback resources

为反馈的子信道(反馈资源数目＝子信道大小/反馈信道占用的RB，指示方法为反馈信道的低频到高频的资源序号或高频到低频的资源序号，其反馈子信道可以其前多个子帧信道反馈集合，也可以是一个子帧对应一个反馈子信道)。The subchannel for feedback (the number of feedback resources = subchannel size / RB occupied by the feedback channel, the indication method is the low frequency to high frequency resource sequence number of the feedback channel or the high frequency to low frequency resource sequence number, and the feedback subchannel can be more than before The sub-frame channel feedback set may also be one sub-frame corresponding to one feedback sub-channel).

反馈资源池(每个反馈资源对对应一个索引，反馈资源对可以配置少于或等于控制信道数)。Feedback resource pool (each feedback resource pair corresponds to one index, and the feedback resource pair can be configured to be less than or equal to the number of control channels).

所有可用的资源(一种是时域固定，一种是指示时频二维)All available resources (one is time domain fixed, one is time-frequency two-dimensional)

第二步：在步骤一选择的资源上发送PSCCH/PSSCH，PSCCH发送PSSCH的资源分配及相关的控制信息。且通过PSCCH指示是否需要反馈或指示反馈资源。Step 2: Send PSCCH/PSSCH on the resource selected in step 1. The PSCCH sends the PSSCH resource allocation and related control information. And through the PSCCH to indicate whether feedback or indication feedback resources are needed.

第三步：在与PSCCH指示或对应的反馈资源上接收反馈信息。The third step: receiving feedback information on the feedback resource indicated or corresponding to the PSCCH.

如果PSCCH指示配置需要反馈，即指示1bit反馈信息

If the PSCCH indicates that the configuration requires feedback, it indicates 1 bit feedback information.

当PSCCH配置需要反馈则在一一对应的资源上接收反馈，否则，无需考虑反馈。When the PSCCH configuration requires feedback, feedback is received on a corresponding resource. Otherwise, no feedback is needed.

第一实施方式对于每个PSCCH/PSSCH可以对应一个NACK和或ACK信道资源，其发送端在PSCCH/PSSCH对应的反馈信道资源上接收信息，解码NACK和或ACK资源信息获得NACK信息和或ACK信息，测量其对应反馈信道的能量或按正交码组的index逐一解扰，确立接收错误的用户数目和或接收正确的接收用户数目。The first embodiment may correspond to one NACK and or ACK channel resource for each PSCCH/PSSCH, and the transmitting end receives information on the feedback channel resource corresponding to the PSCCH/PSSCH, and decodes the NACK and or ACK resource information to obtain NACK information and or ACK information. The energy of the corresponding feedback channel is measured or descrambled one by one according to the index of the orthogonal code group, and the number of users receiving the error and the number of receiving the correct receiving users are established.

第二实施方式对于多个发送端配置一个NACK资源在对应的资源上接收信息，每个发送端按预定义的正交码序列(信令配置)或与PSCCH/PSSCH对应的正交码序列，在相应的资源上解码 The second embodiment configures one NACK resource for multiple senders to receive information on the corresponding resource, and each sender performs a predefined orthogonal code sequence (signaling configuration) or an orthogonal code sequence corresponding to the PSCCH/PSSCH. Decode on the corresponding resource

如果PSCCH指示配置反馈资源，其发送端在

If the PSCCH indicates that the feedback resource is configured, its sender is

PSCCH/PSSCH指示的反馈信道资源上接收信息，解码NACK和或Receiving information on the feedback channel resource indicated by PSCCH/PSSCH, decoding NACK and/or

ACK资源信息获得NACK信息。The ACK resource information obtains NACK information.

第四步：the fourth step:

对于第二实施方式发送端在对应的反馈信道资源上或指示的反馈信道资源上接收到NACK时，即有解码获得NACK，也就是说接收其广播信道有接收错误的用户，选择重发即重新选择资源或在下一个SPS资源调度的资源上选择发送，且调整发送的MCS，功率参数等。For the second embodiment, when the transmitting end receives the NACK on the corresponding feedback channel resource or the indicated feedback channel resource, the user obtains the NACK by decoding, that is, receives the user whose receiving channel has the receiving error, and selects retransmission to restart. Select the resource or select the transmission on the resource scheduled by the next SPS resource, and adjust the transmitted MCS, power parameters, and so on.

对于第一实施方式如果仅配置NACK信道资源，根据解码NACK的用户数目或检测反馈信道的能量，及发送的信息类型，也就是说接收其广播信道错误用户的数目大于预定义的值，如多个NACK用户在其反馈信道进行反馈，其能量叠加大于或反馈用户数目大于预定义门限，选择重发即重选选择资源重发或在下一个SPS资源调度的资源上发送，且调整发送的MCS，功率控制等参数。即NACK的数目大于预定义的门限或NACK信道的能量大于预定义的门限则选择重发。For the first embodiment, if only NACK channel resources are configured, according to the number of users decoding the NACK or the energy of the feedback feedback channel, and the type of information transmitted, that is, the number of users receiving their broadcast channel errors is greater than a predefined value, such as The NACK users feed back on their feedback channels, whose energy superposition is greater than or the number of feedback users is greater than a predefined threshold. Selecting retransmission, ie reselecting, selecting resource retransmission or transmitting on the next SPS resource scheduling resource, and adjusting the transmitted MCS, Power control and other parameters. That is, if the number of NACKs is greater than a predefined threshold or the energy of the NACK channel is greater than a predefined threshold, retransmission is selected.

对于第一实施方式如果配置一对MACK，ACK资源，则根据解码NACK，ACK的用户数目或检测反馈信道的能量，及发送的信息类型，也就是说接收其广播信道错误用户的数目和或能量与正确用户的数目和或能量比值大于预定义的值，如多个NACK用户在其NACK反馈信道进行反馈，其能量叠加大于多个ACK用户的能量叠加，和或接收其广播信道错误用户的数目大于多个ACK用户数目，选择重发即重选选择资源重发或在下一个SPS资源调度的资源上发送，且调整发送的MCS，功率控制等参数。For the first embodiment, if a pair of MACK, ACK resources are configured, according to the decoded NACK, the number of users of the ACK or the energy of the feedback feedback channel, and the type of information transmitted, that is, the number and or energy of users who receive their broadcast channel errors. The number of correct users and the energy ratio are greater than a predefined value, such as multiple NACK users feeding back on their NACK feedback channel, whose energy superposition is greater than the energy superposition of multiple ACK users, and the number of users receiving their broadcast channel errors If the number of ACK users is greater than the number of ACKs, the reselection, that is, reselection, the resource retransmission is selected or sent on the resource scheduled by the next SPS resource, and the parameters of the transmitted MCS, power control, and the like are adjusted.

接收端设备：Receiver device:

第二步：接收端用户盲检所有PSCCH。 Step 2: The receiving end user blindly checks all PSCCHs.

第三步：PSCCH解码正确则根据解码的PSCCH信息在其指示的资源上解码PSSCH，解码正确则执行第四步，解码错误则执行第五步。Step 3: If the PSCCH decoding is correct, the PSSCH is decoded on the indicated resource according to the decoded PSCCH information. If the decoding is correct, the fourth step is performed, and the decoding error is performed in the fifth step.

第四步：根据PSCCH解码反馈域决定是否反馈，当PSCCH指示反馈时计算PSSCH资源所占用的子信道的RSPR的平均值和设定的RSPR的门限值(门限值最小可以设定为-128dBm)，当RSRP大于门限值或和测量距离小于门限时在预配置的ACK资源上反馈接收正确信息，按预定义加扰或接收端在加扰码字组随机选加扰码字(加扰码字组内码字正交)。The fourth step: determining whether to feedback according to the PSCCH decoding feedback field, calculating the average value of the RSPR of the subchannel occupied by the PSSCH resource and the threshold of the set RSPR when the PSCCH indicates the feedback (the minimum threshold value may be set to - 128dBm), when the RSRP is greater than the threshold or the measured distance is less than the threshold, the correct information is fed back on the pre-configured ACK resource, and the scrambling code word is randomly selected in the scrambling codeword group according to the predefined scrambling or receiving end. The codewords within the scrambling block are orthogonal.

当PSCCH指示无需反馈时，则无反馈过程。When the PSCCH indicates that no feedback is needed, there is no feedback process.

第五步：根据PSSCH资源所占用的子信道的RSPR的平均值和设定的RSPR的门限值(门限值最小可以设定为-128dBm)，当RSRP大于门限值或和测量距离小于门限时在预配置的NACK资源上反馈接收错信息。编码调制后时域和或频域扩频后映射到反馈的资源上，其中扩频码可以在接收的广播控制信道通知，或与广播的控制信道有一一对应关系，或在扩频码序列组内随机选择。Step 5: According to the average value of the RSPR of the subchannel occupied by the PSSCH resource and the set threshold of the RSPR (the threshold value can be set to -128 dBm minimum), when the RSRP is greater than the threshold or the measurement distance is less than The threshold information is fed back to the pre-configured NACK resource to receive error information. The coded modulated time domain and or the frequency domain spread spectrum are mapped to the feedback resources, wherein the spread code can be notified on the received broadcast control channel, or have a one-to-one correspondence with the broadcast control channel, or in the spread code sequence. Random selection within the group.

实施例三：仅配置NACK信道资源Embodiment 3: Configuring only NACK channel resources

发送端设备：Sending device:

配置NACK信道资源Configuring NACK channel resources

在第一实施方式中，PSCCH/PSSCH信道资源对应一个NACK信道资源，正交码组中其正交码的index可以与PSCCH/PSSCH一一对应，或在正交码组中随机选择一个正交码；或根据发送端UE的PSCCH指示，或根据接收UE的特征如UEID选择对应的正交序列。In the first embodiment, the PSCCH/PSSCH channel resource corresponds to one NACK channel resource, and the index of the orthogonal code in the orthogonal code group may be in one-to-one correspondence with the PSCCH/PSSCH, or one orthogonality is randomly selected in the orthogonal code group. And selecting a corresponding orthogonal sequence according to the PSCCH indication of the transmitting UE or according to the characteristics of the receiving UE, such as the UEID.

在第二实施方式中，多个PSCCH/PSSCH信道资源配置一个NACK信道资源，发送端通过信令指示扩频码的正交码序列序号，或在正交码组中其正交码的index可以与PSCCH/PSSCH一一对应。例如：PSCCH信道的资源的index与正交码组中的index一致。 In the second embodiment, a plurality of PSCCH/PSSCH channel resources are configured with one NACK channel resource, and the transmitting end indicates the orthogonal code sequence number of the spreading code by signaling, or the index of the orthogonal code in the orthogonal code group may be One-to-one correspondence with PSCCH/PSSCH. For example, the index of the resource of the PSCCH channel is consistent with the index in the orthogonal code group.

在第三实施方式中，PSCCH/PSSCH信道资源各对应对应一个NACK资源In the third embodiment, the PSCCH/PSSCH channel resources respectively correspond to one NACK resource.

正交码组中其正交码的index可以与PSCCH/PSSCH一一对应，或在正交码组中随机选择一个正交码。The index of the orthogonal code in the orthogonal code group may be in one-to-one correspondence with the PSCCH/PSSCH, or one orthogonal code may be randomly selected in the orthogonal code group.

第一步：在V2X资源池上通过侦听或随机选择方式选择用于发送的PSCCH/PSSCH资源或基于基站配置的用于发送PSCCH/PSSCH的资源。Step 1: Select a PSCCH/PSSCH resource for transmission or a resource for transmitting PSCCH/PSSCH based on the configuration of the base station by listening or randomly selecting on the V2X resource pool.

第二步：在步骤一选择的资源上发送PSCCH/PSSCH，PSCCH发送PSSCH的资源分配及相关的控制信息。Step 2: Send PSCCH/PSSCH on the resource selected in step 1. The PSCCH sends the PSSCH resource allocation and related control information.

第三步：在与PSCCH/PSSCH对应的反馈资源上接收反馈信息。The third step: receiving feedback information on the feedback resource corresponding to the PSCCH/PSSCH.

实施方式一，对于每个PSCCH/PSSCH对应一个NACK资源，其发送端在PSCCH/PSSCH对应的反馈信道资源上接收信息，解码NACK资源信息获得NACK信息或测量其对应反馈信道的能量或按正交码组的index逐一解扰，确立错误反馈UE的数目。For the first embodiment, for each PSCCH/PSSCH corresponding to one NACK resource, the transmitting end receives information on the feedback channel resource corresponding to the PSCCH/PSSCH, decodes the NACK resource information, obtains NACK information, or measures the energy of the corresponding feedback channel or orthogonally. The index of the code group is descrambled one by one, and the number of error feedback UEs is established.

实施方式二，对于多个发送端配置一个NACK资源在对应的资源上接收信息，每个发送端按预定义的正交码序列(信令配置)或与PSCCH/PSSCH对应的正交码序列，在相应的资源上解码。获得是否有反馈错误的信息。 Embodiment 2, configuring a NACK resource for multiple senders to receive information on a corresponding resource, and each sender performs a predefined orthogonal code sequence (signaling configuration) or an orthogonal code sequence corresponding to PSCCH/PSSCH. Decode on the corresponding resource. Get information on whether there is a feedback error.

实施方式三，PSCCH/PSSCH信道资源各对应对应一个NACK资源，在PSCCH，PSSCH对应的信道上接收信息，解码NACK资源信息获得PSCCH，PSSCH的NACK信息或测量其对应反馈信道的能量或按正交码组的index逐一解扰，确立错误反馈的数目。In the third embodiment, the PSCCH/PSSCH channel resources respectively correspond to one NACK resource, receive information on the channel corresponding to the PSCCH and the PSSCH, decode the NACK resource information, obtain the PSCCH, and the NACK information of the PSSCH or measure the energy of the corresponding feedback channel or orthogonally. The index of the code group is descrambled one by one, establishing the number of error feedbacks.

第四步：the fourth step:

基于实施方式一根据解码NACK的用户数目或检测反馈信道的能量，及发送的信息类型选择重发即重选选择资源重发或在下一个SPS资源调度的资源上发送，且调整发送的MCS，功率控制等参数。即NACK的数目大于预定义的门限或NACK信道的能量大于预定义的门限则选择重发。 According to the first embodiment, according to the number of users decoding the NACK or the energy of the feedback feedback channel, and the type of information to be transmitted, the retransmission, that is, the reselection, the resource retransmission is selected or transmitted on the resource of the next SPS resource scheduling, and the transmitted MCS is adjusted. Control parameters. That is, if the number of NACKs is greater than a predefined threshold or the energy of the NACK channel is greater than a predefined threshold, retransmission is selected.

基于实施方式二，发送端在对应的反馈信道资源上接收到NACK时，即有解码获得NACK就选择重发即重新选择资源或在下一个SPS资源调度的资源上选择发送，且调整发送的MCS，功率参数等。Based on the second embodiment, when the sending end receives the NACK on the corresponding feedback channel resource, the transmitting end selects the retransmission, that is, re-selects the resource, selects the transmission on the resource scheduled by the next SPS resource, and adjusts the sent MCS. Power parameters, etc.

基于实施方式三，根据解码NACK及NACK1的用户数目或检测反馈信道的能量，及发送的信息类型，统计是接收端PSCCH接收错误，还是PSSCH解码错误，分析是否是PSCCH资源碰撞，选择重发即重选选择资源重发或在下一个SPS资源调度的资源上发送，且调整发送的MCS，功率控制等参数。即NACK的数目大于预定义的门限或NACK信道的能量大于预定义的门限则选择重发。Based on Embodiment 3, according to the number of users decoding NACK and NACK1 or the energy of the feedback feedback channel, and the type of information to be transmitted, whether the reception is a PSCCH reception error or a PSSCH decoding error, and whether the PSCCH resource collision is selected, and the retransmission is selected. The reselection selects the resource to be retransmitted or sent on the resource scheduled by the next SPS resource, and adjusts the parameters of the transmitted MCS, power control, and the like. That is, if the number of NACKs is greater than a predefined threshold or the energy of the NACK channel is greater than a predefined threshold, retransmission is selected.

接收端设备：Receiver device:

由于是广播消息，在广播消息覆盖内有多个接收设备接收，其多个接收设计处理一致。Since it is a broadcast message, there are multiple receiving devices receiving within the broadcast message coverage, and its multiple receiving design processes are consistent.

第一步：接收端用户盲检所有PSCCH。The first step: the receiving end user blindly checks all PSCCHs.

第二步：PSCCH解码正确则根据解码的PSCCH信息在其指示的资源上解码PSSCH，PSSCH解码错误进行第三步。解码正确则结束接收过程。Step 2: If the PSCCH decoding is correct, the PSSCH is decoded on the indicated resource according to the decoded PSCCH information, and the PSSCH decoding error is performed in the third step. If the decoding is correct, the receiving process ends.

第三步：接收端所对应的每个发送端进行PSSCH解码检测错误。The third step: each sender corresponding to the receiving end performs a PSSCH decoding detection error.

对于实施例一和实施例三根据测量的RSRP或测量与发送端的距离，或/和信息类别，则在对应一个NACK资源在对应的资源上反馈NACK，按预定义方式或在一组正交资源组中，随机选择正交码序列扩频，且映射到对应的NACK资源上。具体反馈NACK的判别准则For the first embodiment and the third embodiment, according to the measured RSRP or the distance between the measurement and the transmitting end, or/and the information category, the NACK is fed back to the corresponding resource on the corresponding resource, in a predefined manner or in a set of orthogonal resources. In the group, the orthogonal code sequence is randomly selected and spread, and mapped to the corresponding NACK resource. Specific feedback NACK criteria

RSRP大于或测量与发送端的距离小于预定义值；

The RSRP is greater than or the distance between the measurement and the transmitting end is less than a predefined value;

按信息类别及其对应具体RSRP和测量的预定义值；

According to the information category and its corresponding specific RSRP and measured predefined values;

解码信息效验为NACK。

The decoding information is verified as NACK.

对于实施例二对于多个发送端配置一个NACK资源，每个发送端的控制信道对应一个正交码组的一个序号，按发送端控制信道对应的序号的正交码对NACK进行时频域扩频，多个不同发送端的接收用户复用在相同的资源上采用不同的正交码序列。For the second embodiment, a NACK resource is configured for multiple senders, and the control channel of each sender corresponds to a sequence number of an orthogonal code group, and the sequence number corresponding to the control channel of the sender is positive. The cross-code performs frequency-frequency domain spreading on the NACK, and the receiving users of different different transmitting ends use different orthogonal code sequences on the same resource.

图3为本申请实施例的重传反馈装置的结构组成示意图，如图3所示，所述装置包括：FIG. 3 is a schematic structural diagram of a retransmission feedback apparatus according to an embodiment of the present application. As shown in FIG. 3, the apparatus includes:

获取单元301，配置为获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息；The obtaining unit 301 is configured to obtain at least one of the following feedback information corresponding to the broadcast message: ACK information, NACK information;

测量单元302，配置为测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；The measuring unit 302 is configured to measure at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, distance between the broadcast message receiving end and the broadcast message sending end;

决策单元303，配置为根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；The determining unit 303 is configured to determine, according to the feedback information and the channel parameter, whether feedback of feedback information needs to be performed on the feedback channel;

发送单元304，配置为如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。The sending unit 304 is configured to: if feedback of the feedback information needs to be performed on the feedback channel, the feedback information is coded and modulated, and then spread-spread on the time-frequency domain to be transmitted on the feedback channel.

接收单元305，配置为接收广播消息的控制信道；The receiving unit 305 is configured to receive a control channel of the broadcast message;

解码校验单元306，配置为对所述控制信道进行解码校验；如果对所述控制信道解码校验正确，则在所述控制信道所指示的资源上解码校验业务信道；The decoding check unit 306 is configured to perform decoding and verification on the control channel; if the decoding of the control channel is correctly verified, decoding the verification service channel on the resource indicated by the control channel;

所述获取单元301，配置为根据所述业务信道的解码校验结果，获得所述广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。The obtaining unit 301 is configured to obtain at least one of the following feedback information corresponding to the broadcast message according to the decoding and verification result of the traffic channel: ACK information and NACK information.

本申请实施例中，所述决策单元303，配置为采用判决准则判别是否需要在反馈信道上进行反馈信息的反馈；其中，所述判决准则包括以下至少之一：In the embodiment of the present application, the determining unit 303 is configured to determine, by using a decision criterion, whether feedback of the feedback information needs to be performed on the feedback channel, where the decision criterion includes at least one of the following:

如果满足以下条件至少之一，则在ACK反馈信道上反馈ACK信息：解码校验业务信道为ACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值； If at least one of the following conditions is met, the ACK information is fed back on the ACK feedback channel: the decoded check traffic channel is ACK information, the energy of the traffic channel is greater than the first energy threshold, and the distance between the broadcast message receiving end and the broadcast message sending end is less than First distance threshold;

处理单元307，配置为根据所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，将编码调制后的反馈信息在频域乘以以下正交序列：固定的正交序列、从正交序列组内随机选择的正交序列。The processing unit 307 is configured to perform coded modulation on the time-frequency domain according to the feedback information and transmit to the feedback channel, and multiply the coded and modulated feedback information in the frequency domain by the following orthogonal sequence: a fixed orthogonal sequence. Orthogonal sequences randomly selected from orthogonal sequence groups.

本申请实施例中，所述处理单元307，配置为将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列。In the embodiment of the present application, the processing unit 307 is configured to multiply the coded and modulated feedback information in the time domain by the following orthogonal sequence: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from the orthogonal sequence group. .

本申请实施例中，所述处理单元307，配置为将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列、或根据发送端UE的PSCCH指示选择对应的正交序列、或根据接收UE的特征选择对应的正交序列。In the embodiment of the present application, the processing unit 307 is configured to multiply the coded and modulated feedback information in the time domain by the following orthogonal sequence: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from the orthogonal sequence group. Or selecting a corresponding orthogonal sequence according to the PSCCH indication of the transmitting UE, or selecting a corresponding orthogonal sequence according to the characteristics of the receiving UE.

本领域技术人员应当理解，图3所示的重传反馈装置中的各单元的实现功能可参照前述重传反馈方法的相关描述而理解。Those skilled in the art should understand that the implementation functions of the units in the retransmission feedback apparatus shown in FIG. 3 can be understood by referring to the related description of the foregoing retransmission feedback method.

在实际应用中，所述重传反馈装置中的各个单元所实现的功能，均可由位于重传反馈装置中的中央处理器(CPU，Central Processing Unit)、或微处理器(MPU，Micro Processor Unit)、或数字信号处理器(DSP，Digital Signal Processor)、或现场可编程门阵列(FPGA，Field Programmable Gate Array)等实现。 In practical applications, the functions implemented by each unit in the retransmission feedback device may be implemented by a central processing unit (CPU, Central Processing Unit) or a microprocessor (MPU, Micro Processor Unit) located in the retransmission feedback device. ), or a digital signal processor (DSP, Digital Signal Processor), or Field Programmable Gate Array (FPGA).

图4为本申请实施例的重传触发装置的结构组成示意图，如图4所示，所述装置包括：FIG. 4 is a schematic structural diagram of a retransmission triggering apparatus according to an embodiment of the present application. As shown in FIG. 4, the apparatus includes:

接收单元401，配置为在反馈信道上接收反馈信息并对所述反馈信息进行解码；The receiving unit 401 is configured to receive feedback information on the feedback channel and decode the feedback information;

测量单元402，配置为测量反馈信道的能量；The measuring unit 402 is configured to measure energy of the feedback channel;

决策单元403，配置为根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。The determining unit 403 is configured to determine, according to at least one of the following, whether to trigger a retransmission process: a decoding result of the feedback information, an energy of the feedback channel, a quantity of the feedback channel, and a type of a broadcast message.

本申请实施例中，所述决策单元403，配置为采用判决准则判别是否需要触发重传过程；其中，所述判决准则包括以下至少之一：In the embodiment of the present application, the determining unit 403 is configured to determine, by using a decision criterion, whether a retransmission process needs to be triggered, where the decision criterion includes at least one of the following:

多个广播消息的控制信道和/或数据信道对应一个NACK信息的资源，反馈信息采用的码字与广播消息的控制信道和/或数据信道具有一一对应关系；a control channel and/or a data channel of a plurality of broadcast messages corresponding to a resource of NACK information, The codeword used in the feedback information has a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

所述反馈信道包括以下至少之一：一个NACK信道、一对ACK、NACK信道、一对ACK、NACK信道、第二个NACK信道。The feedback channel includes at least one of: a NACK channel, a pair of ACKs, a NACK channel, a pair of ACKs, a NACK channel, and a second NACK channel.

处理单元404，配置为在广播消息的下一次发送周期，调整发送次数、调制与编码策略或功率参数；或者，在广播消息的本周期，重新为广播消息选择资源，调整发送次数、调制与编码策略或功率参数。The processing unit 404 is configured to adjust the number of transmissions, the modulation and coding strategy, or the power parameter in the next transmission period of the broadcast message; or, in the current period of the broadcast message, re-select resources for the broadcast message, adjust the number of transmissions, modulation, and coding. Policy or power parameters.

本领域技术人员应当理解，图4所示的重传触发装置中的各单元的实现功能可参照前述重传触发方法的相关描述而理解。It should be understood by those skilled in the art that the implementation functions of the units in the retransmission triggering apparatus shown in FIG. 4 can be understood by referring to the related description of the foregoing retransmission triggering method.

在实际应用中，所述重传触发装置中的各个单元所实现的功能，均可由位于重传触发装置中的CPU、或MPU、或DSP、或FPGA等实现。In practical applications, the functions implemented by each unit in the retransmission triggering device may be implemented by a CPU, or an MPU, or a DSP, or an FPGA, etc., located in the retransmission triggering device.

本申请实施例的技术方案，对不具备手势识别部件的设备(例如未配备摄像头的设备)，无须使用者面对该设备，也能够通过手势对该设备进行控制(例如选择功能、配置参数等)，且该设备本身增加成本较低。The technical solution of the embodiment of the present application is for a device that does not have a gesture recognition component (for example, not equipped The camera device can control the device by gestures (such as selecting functions, configuration parameters, etc.) without the user facing the device, and the device itself has a lower cost.

本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产品。因此，本申请可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Accordingly, the application can take the form of a hardware embodiment, a software embodiment, or an embodiment in combination with software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序配置为执行本发明实施例的重传反馈方法或重传触发方法。Correspondingly, an embodiment of the present invention further provides a computer storage medium in which a calculation is stored. The computer program is configured to perform the retransmission feedback method or the retransmission trigger method of the embodiment of the present invention.

以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。The above is only the preferred embodiment of the present application and is not intended to limit the scope of the present application.

工业实用性Industrial applicability

本申请实施例的技术方案，获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息；测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。在反馈信道上接收反馈信息并对所述反馈信息进行解码，以及测量反馈信道的能量；根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。如此，提高了广播***的可靠性及***资源的利用效率。 The technical solution of the embodiment of the present application obtains at least one of the following feedback information corresponding to the broadcast message: ACK information, NACK information; and measures at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, and broadcast message receiving end a distance from the transmitting end of the broadcast message; determining, according to the feedback information, the channel parameter, whether feedback of the feedback information needs to be performed on the feedback channel; if feedback of the feedback information needs to be performed on the feedback channel, encoding the feedback information After modulation, the spread spectrum is mapped to the feedback channel and transmitted on the time-frequency domain. Receiving feedback information on the feedback channel and decoding the feedback information, and measuring energy of the feedback channel; determining whether a retransmission process needs to be triggered according to at least one of: decoding result of the feedback information, the feedback channel Energy, the number of feedback channels, the type of broadcast message. In this way, the reliability of the broadcasting system and the utilization efficiency of system resources are improved.

Claims

一种重传反馈方法，所述方法包括：A retransmission feedback method, the method comprising:

获得广播消息对应的如下反馈信息的至少之一：肯定确认ACK信息、否定确认NACK信息；Obtaining at least one of the following feedback information corresponding to the broadcast message: positive acknowledgement ACK information, negative acknowledgement NACK information;

测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；Measuring at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, distance between the broadcast message receiving end and the broadcast message transmitting end;

根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；Determining whether feedback of the feedback information needs to be performed on the feedback channel according to the feedback information and the channel parameter;

如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。If feedback of the feedback information needs to be performed on the feedback channel, the feedback information is coded and modulated and then spread-spread on the time-frequency domain to be transmitted on the feedback channel.
根据权利要求1所述的方法，其中，所述获得广播消息对应的如下反馈信息的至少之一：肯定确认ACK信息、否定确认NACK信息，包括：The method according to claim 1, wherein the obtaining at least one of the following feedback information corresponding to the broadcast message: positive confirmation ACK information, negative acknowledgement NACK information, comprising:

接收广播消息的控制信道，对所述控制信道进行解码校验；Receiving a control channel of the broadcast message, performing decoding and verification on the control channel;

如果对所述控制信道解码校验正确，则在所述控制信道所指示的资源上解码校验业务信道；If the decoding of the control channel is correctly verified, decoding the verification traffic channel on the resource indicated by the control channel;

根据所述业务信道的解码校验结果，获得所述广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。Obtaining at least one of the following feedback information corresponding to the broadcast message according to the decoding and verifying result of the traffic channel: ACK information, NACK information.
根据权利要求1所述的方法，其中，所述判别是否需要在反馈信道上进行反馈信息的反馈，包括：采用判决准则判别是否需要在反馈信道上进行反馈信息的反馈；其中，所述判决准则包括以下至少之一：The method according to claim 1, wherein the discriminating whether the feedback of the feedback information needs to be performed on the feedback channel comprises: determining, by using a decision criterion, whether feedback of the feedback information needs to be performed on the feedback channel; wherein the decision criterion Includes at least one of the following:

如果满足以下条件至少之一，则在ACK反馈信道上反馈ACK信息：解码校验业务信道为ACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值；If at least one of the following conditions is met, the ACK information is fed back on the ACK feedback channel: the decoded check traffic channel is ACK information, the energy of the traffic channel is greater than the first energy threshold, and the distance between the broadcast message receiving end and the broadcast message sending end is less than First distance threshold;

如果满足以下条件至少之一，则在第一NACK反馈信道上反馈 NACK信息：解码校验业务信道为NACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值；Feedback on the first NACK feedback channel if at least one of the following conditions is met NACK information: the decoding check traffic channel is NACK information, the energy of the traffic channel is greater than the first energy threshold, and the distance between the broadcast message receiving end and the broadcast message sending end is less than the first distance threshold;

如果满足以下条件至少之一，则在第二NACK反馈信道上反馈NACK信息：解码校验控制信道为NACK信息、控制信道的能量大于第二能量门限值，广播消息接收端与广播消息发送端的距离小于第二距离门限值、存在第二NACK反馈信道。If the at least one of the following conditions is met, the NACK information is fed back on the second NACK feedback channel: the decoding check control channel is NACK information, the energy of the control channel is greater than the second energy threshold, and the broadcast message receiving end and the broadcast message sending end The distance is less than the second distance threshold and there is a second NACK feedback channel.
根据权利要求1所述的方法，其中，所述将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，包括：The method according to claim 1, wherein said encoding and modulating said feedback information is spread-spread on a time-frequency domain to transmit on a feedback channel, comprising:

将编码调制后的反馈信息在频域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列。The coded modulated feedback information is multiplied in the frequency domain by the following orthogonal sequence: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from within the orthogonal sequence group.
根据权利要求1所述的方法，其中，所述将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，包括：The method according to claim 1, wherein said encoding and modulating said feedback information is spread-spread on a time-frequency domain to transmit on a feedback channel, comprising:

将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列、或根据发送端UE的PSCCH指示选择对应的正交序列、或根据接收UE的特征选择对应的正交序列。Multiplying the coded modulated feedback information by the following orthogonal sequence in the time domain: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from within the orthogonal sequence group, or selecting a corresponding orthogonal according to a PSCCH indication of the transmitting UE The sequence, or the corresponding orthogonal sequence is selected according to the characteristics of the receiving UE.
一种重传触发方法，所述方法包括：A retransmission triggering method, the method comprising:

在反馈信道上接收反馈信息并对所述反馈信息进行解码，以及测量反馈信道的能量；Receiving feedback information on the feedback channel and decoding the feedback information, and measuring energy of the feedback channel;

根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。Determining whether a retransmission process needs to be triggered according to at least one of the following: a decoding result of the feedback information, an energy of the feedback channel, a quantity of the feedback channel, and a type of a broadcast message.
根据权利要求6所述的方法，其中，所述判别是否需要触发重传过程，包括：采用判决准则判别是否需要触发重传过程；其中，所述判决准则包括以下至少之一： The method according to claim 6, wherein the determining whether the retransmission process needs to be triggered comprises: determining whether a retransmission process needs to be triggered by using a decision criterion; wherein the decision criterion comprises at least one of the following:

如果NACK反馈信道的能量大于第一预设值，则触发重传过程；If the energy of the NACK feedback channel is greater than the first preset value, triggering a retransmission process;

如果NACK反馈信道的能量与ACK反馈信道的能量比值大于第二预设值，则触发重传过程；If the energy ratio of the energy of the NACK feedback channel to the ACK feedback channel is greater than a second preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目大于第三预设值，则触发重传过程；If the number of NACK information in the feedback information is greater than a third preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目与ACK反馈信道的数目比值大于第四预设值，则触发重传过程；If the ratio of the number of NACK information in the feedback information to the number of ACK feedback channels is greater than a fourth preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目与所需反馈信道的数目比值大于第五预设值，则触发重传过程；If the ratio of the number of NACK information in the feedback information to the number of required feedback channels is greater than a fifth preset value, triggering a retransmission process;

如果所需反馈信道的数目与反馈信息中的NACK信息的数目以及ACK信息的数目之和的比值大于第六预设值，则触发重传过程。If the ratio of the number of required feedback channels to the sum of the number of NACK information and the number of ACK information in the feedback information is greater than the sixth preset value, the retransmission process is triggered.
根据权利要求6所述的方法，其中，所述反馈信道满足以下配置的至少之一：The method of claim 6, wherein the feedback channel satisfies at least one of the following configurations:

反馈信道的资源与广播消息的控制信道和/或数据信道具有一一对应关系；The resources of the feedback channel have a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

多个广播消息的控制信道和/或数据信道对应一个NACK信息的资源，反馈信息采用的码字与广播消息的控制信道和/或数据信道具有一一对应关系；The control channel and/or the data channel of the plurality of broadcast messages correspond to a resource of the NACK information, and the codeword used by the feedback information has a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

其中，所述一一对应关系通过以下方式的至少之一确定：预配置方式、协商方式、广播消息发送端指示的方式。The one-to-one correspondence is determined by at least one of the following manners: a pre-configuration mode, a negotiation mode, and a manner indicated by a broadcast message sending end.
根据权利要求8所述的方法，其中，所述反馈信道包括以下至少之一：一个NACK信道、一对ACK、NACK信道、一对ACK、NACK信道、第二个NACK信道。The method of claim 8, wherein the feedback channel comprises at least one of: a NACK channel, a pair of ACKs, a NACK channel, a pair of ACKs, a NACK channel, and a second NACK channel.
根据权利要求8所述的方法，其中，所述广播消息发送端指示的方式包括以下至少之一： The method of claim 8, wherein the manner in which the broadcast message sender indicates comprises at least one of the following:

广播消息发送端指示是否需要在一一对应的反馈信息的资源上进行反馈；The broadcast message sending end indicates whether it is required to perform feedback on the resources of the one-to-one corresponding feedback information;

广播消息发送端指示反馈信息、反馈信息的资源。The broadcast message sender indicates the resources of the feedback information and the feedback information.
根据权利要求9所述的方法，其中，所述反馈信息的资源通过以下指示方式的至少之一进行指示：The method of claim 9, wherein the resource of the feedback information is indicated by at least one of the following indications:

采用固定时域偏置的反馈资源的索引index进行指示、采用时域进行指示、采用频域进行指示、采用时频域组合进行指示。The index index of the feedback resource with fixed time domain offset is used for indication, the time domain is used for indication, the frequency domain is used for indication, and the time-frequency domain combination is used for indication.
根据权利要求9所述的方法，其中，所述反馈信息的资源为一组正交码组，其中，所述正交码组中的每个码字对应一个序号。The method according to claim 9, wherein the resource of the feedback information is a set of orthogonal code groups, wherein each code word in the orthogonal code group corresponds to a sequence number.
根据权利要求6所述的方法，其中，所述广播消息为周期性广播消息，所述方法还包括：The method of claim 6, wherein the broadcast message is a periodic broadcast message, the method further comprising:

在广播消息的下一次发送周期，调整发送次数、调制与编码策略或功率参数；或者，Adjust the number of transmissions, modulation and coding strategy, or power parameters in the next transmission period of the broadcast message; or,

在广播消息的本周期，重新为广播消息选择资源，调整发送次数、调制与编码策略或功率参数。During the current period of the broadcast message, resources are re-selected for the broadcast message, and the number of transmissions, modulation and coding strategies, or power parameters are adjusted.
一种重传反馈装置，所述装置包括：A retransmission feedback device, the device comprising:

获取单元，配置为获得广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息；An obtaining unit, configured to obtain at least one of the following feedback information corresponding to the broadcast message: ACK information, NACK information;

测量单元，配置为测量以下信道参数的至少之一：控制信道的能量、业务信道的能量、广播消息接收端与广播消息发送端的距离；a measuring unit configured to measure at least one of the following channel parameters: energy of the control channel, energy of the traffic channel, distance between the broadcast message receiving end and the broadcast message sending end;

决策单元，配置为根据所述反馈信息、所述信道参数，判别是否需要在反馈信道上进行反馈信息的反馈；a decision unit, configured to determine, according to the feedback information, the channel parameter, whether feedback of feedback information needs to be performed on a feedback channel;

发送单元，配置为如果需要在反馈信道上进行反馈信息的反馈，则将所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送。The sending unit is configured to: if feedback of the feedback information needs to be performed on the feedback channel, the feedback information is coded and modulated and then spread-spread on the time-frequency domain and transmitted to the feedback channel for transmission.
根据权利要求14所述的装置，其中，所述装置还包括： The apparatus of claim 14 wherein said apparatus further comprises:

接收单元，配置为接收广播消息的控制信道；a receiving unit configured to receive a control channel of a broadcast message;

解码校验单元，配置为对所述控制信道进行解码校验；如果对所述控制信道解码校验正确，则在所述控制信道所指示的资源上解码校验业务信道；a decoding check unit configured to perform decoding check on the control channel; if the decoding of the control channel is correctly verified, decoding a check traffic channel on a resource indicated by the control channel;

所述获取单元，配置为根据所述业务信道的解码校验结果，获得所述广播消息对应的如下反馈信息的至少之一：ACK信息、NACK信息。The acquiring unit is configured to obtain at least one of the following feedback information corresponding to the broadcast message according to the decoding and verification result of the traffic channel: ACK information and NACK information.
根据权利要求14所述的装置，其中，所述决策单元，配置为采用判决准则判别是否需要在反馈信道上进行反馈信息的反馈；其中，所述判决准则包括以下至少之一：The apparatus according to claim 14, wherein the decision unit is configured to determine, by using a decision criterion, whether feedback of feedback information needs to be performed on a feedback channel; wherein the decision criterion comprises at least one of the following:

如果满足以下条件至少之一，则在ACK反馈信道上反馈ACK信息：解码校验业务信道为ACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值；If at least one of the following conditions is met, the ACK information is fed back on the ACK feedback channel: the decoded check traffic channel is ACK information, the energy of the traffic channel is greater than the first energy threshold, and the distance between the broadcast message receiving end and the broadcast message sending end is less than First distance threshold;

如果满足以下条件至少之一，则在第一NACK反馈信道上反馈NACK信息：解码校验业务信道为NACK信息、业务信道的能量大于第一能量门限值、广播消息接收端与广播消息发送端的距离小于第一距离门限值；If the at least one of the following conditions is met, the NACK information is fed back on the first NACK feedback channel: the decoded check traffic channel is NACK information, the energy of the traffic channel is greater than the first energy threshold, and the broadcast message receiving end and the broadcast message sending end The distance is less than the first distance threshold;

如果满足以下条件至少之一，则在第二NACK反馈信道上反馈NACK信息：解码校验控制信道为NACK信息、控制信道的能量大于第二能量门限值，广播消息接收端与广播消息发送端的距离小于第二距离门限值、存在第二NACK反馈信道。If the at least one of the following conditions is met, the NACK information is fed back on the second NACK feedback channel: the decoding check control channel is NACK information, the energy of the control channel is greater than the second energy threshold, and the broadcast message receiving end and the broadcast message sending end The distance is less than the second distance threshold and there is a second NACK feedback channel.
根据权利要求14所述的装置，其中，所述装置还包括：The apparatus of claim 14 wherein said apparatus further comprises:

处理单元，配置为根据所述反馈信息编码调制后在时频域上扩频映射至反馈信道上发送，将编码调制后的反馈信息在频域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列。The processing unit is configured to perform coded modulation on the time-frequency domain according to the feedback information and transmit to the feedback channel, and multiply the coded and modulated feedback information in the frequency domain by the following orthogonal sequence: a fixed orthogonal sequence, Or orthogonal sequences randomly selected from within the orthogonal sequence set.
根据权利要求14所述的装置，其中，所述处理单元，配置为将编码调制后的反馈信息在时域乘以以下正交序列：固定的正交序列、或从正交序列组内随机选择的正交序列、或根据发送端UE的PSCCH指示选择对应的正交序列、或根据接收UE的特征选择对应的正交序列。The apparatus of claim 14, wherein the processing unit is configured to The coded modulated feedback information is multiplied in the time domain by the following orthogonal sequence: a fixed orthogonal sequence, or an orthogonal sequence randomly selected from within the orthogonal sequence group, or a corresponding orthogonal sequence according to a PSCCH indication of the transmitting UE Or selecting a corresponding orthogonal sequence according to the characteristics of the receiving UE.
一种重传触发装置，所述装置包括：A retransmission trigger device, the device comprising:

接收单元，配置为在反馈信道上接收反馈信息并对所述反馈信息进行解码；a receiving unit configured to receive feedback information on a feedback channel and decode the feedback information;

测量单元，配置为测量反馈信道的能量；a measuring unit configured to measure energy of the feedback channel;

决策单元，配置为根据如下至少之一，判别是否需要触发重传过程：所述反馈信息的解码结果、所述反馈信道的能量、所述反馈信道的数量、广播消息的类型。The decision unit is configured to determine whether a retransmission process needs to be triggered according to at least one of: a decoding result of the feedback information, an energy of the feedback channel, a quantity of the feedback channel, and a type of a broadcast message.
根据权利要求19所述的装置，其中，所述决策单元，配置为采用判决准则判别是否需要触发重传过程；其中，所述判决准则包括以下至少之一：The apparatus according to claim 19, wherein said decision unit is configured to determine whether a retransmission process needs to be triggered by using a decision criterion; wherein the decision criterion comprises at least one of the following:

如果NACK反馈信道的能量大于第一预设值，则触发重传过程；If the energy of the NACK feedback channel is greater than the first preset value, triggering a retransmission process;

如果NACK反馈信道的能量与ACK反馈信道的能量比值大于第二预设值，则触发重传过程；If the energy ratio of the energy of the NACK feedback channel to the ACK feedback channel is greater than a second preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目大于第三预设值，则触发重传过程；If the number of NACK information in the feedback information is greater than a third preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目与ACK反馈信道的数目比值大于第四预设值，则触发重传过程；If the ratio of the number of NACK information in the feedback information to the number of ACK feedback channels is greater than a fourth preset value, triggering a retransmission process;

如果反馈信息中的NACK信息的数目与所需反馈信道的数目比值大于第五预设值，则触发重传过程；If the ratio of the number of NACK information in the feedback information to the number of required feedback channels is greater than a fifth preset value, triggering a retransmission process;

如果所需反馈信道的数目与反馈信息中的NACK信息的数目以及ACK信息的数目之和的比值大于第六预设值，则触发重传过程。If the ratio of the number of required feedback channels to the sum of the number of NACK information and the number of ACK information in the feedback information is greater than the sixth preset value, the retransmission process is triggered.
根据权利要求19所述的装置，其中，所述反馈信道满足以下配置的至少之一：The apparatus of claim 19, wherein said feedback channel satisfies the following At least one of:

反馈信道的资源与广播消息的控制信道和/或数据信道具有一一对应关系；The resources of the feedback channel have a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

多个广播消息的控制信道和/或数据信道对应一个NACK信息的资源，反馈信息采用的码字与广播消息的控制信道和/或数据信道具有一一对应关系；The control channel and/or the data channel of the plurality of broadcast messages correspond to a resource of the NACK information, and the codeword used by the feedback information has a one-to-one correspondence with the control channel and/or the data channel of the broadcast message;

其中，所述一一对应关系通过以下方式的至少之一确定：预配置方式、协商方式、广播消息发送端指示的方式。The one-to-one correspondence is determined by at least one of the following manners: a pre-configuration mode, a negotiation mode, and a manner indicated by a broadcast message sending end.
根据权利要求21所述的装置，其中，所述反馈信道包括以下至少之一：一个NACK信道、一对ACK、NACK信道、一对ACK、NACK信道、第二个NACK信道。The apparatus of claim 21, wherein the feedback channel comprises at least one of: a NACK channel, a pair of ACKs, a NACK channel, a pair of ACKs, a NACK channel, and a second NACK channel.
根据权利要求21所述的装置，其中，所述广播消息发送端指示的方式包括以下至少之一：The apparatus according to claim 21, wherein the manner indicated by the broadcast message sending end comprises at least one of the following:

广播消息发送端指示是否需要在一一对应的反馈信息的资源上进行反馈；The broadcast message sending end indicates whether it is required to perform feedback on the resources of the one-to-one corresponding feedback information;

广播消息发送端指示反馈信息、反馈信息的资源。The broadcast message sender indicates the resources of the feedback information and the feedback information.
根据权利要求22所述的装置，其中，所述反馈信息的资源通过以下指示方式的至少之一进行指示：The apparatus of claim 22, wherein the resource of the feedback information is indicated by at least one of the following indications:

采用固定时域偏置的反馈资源的index进行指示、采用时域进行指示、采用频域进行指示、采用时频域组合进行指示。The index of the feedback resource with fixed time domain offset is used for indication, the time domain is used for indication, the frequency domain is used for indication, and the time-frequency domain combination is used for indication.
根据权利要求22所述的装置，其中，所述反馈信息的资源为一组正交码组，其中，所述正交码组中的每个码字对应一个序号。The apparatus according to claim 22, wherein the resource of the feedback information is a set of orthogonal code groups, wherein each codeword in the orthogonal code group corresponds to a sequence number.
根据权利要求19所述的装置，其中，所述广播消息为周期性广播消息，所述装置还包括：The device of claim 19, wherein the broadcast message is a periodic broadcast message, the device further comprising:

处理单元，配置为在广播消息的下一次发送周期，调整发送次数、调制与编码策略或功率参数；或者，在广播消息的本周期，重新为广播消息选择资源，调整发送次数、调制与编码策略或功率参数。The processing unit is configured to adjust the number of transmissions in the next transmission period of the broadcast message, Modulation and coding strategy or power parameters; or, in the current period of the broadcast message, re-select resources for the broadcast message, adjust the number of transmissions, modulation and coding strategy or power parameters.
一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令配置为执行权利要求1-5任一项所述的重传反馈方法，或者权利要求6-13任一项所述的重传触发方法。 A computer storage medium having stored therein computer executable instructions configured to perform the retransmission feedback method of any of claims 1-5, or any of claims 6-13 A retransmission triggering method as described.