WO2020143724A1

WO2020143724A1 - Reference signal sending method and apparatus

Info

Publication number: WO2020143724A1
Application number: PCT/CN2020/071245
Authority: WO
Inventors: 黎超
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-01-11
Filing date: 2020-01-09
Publication date: 2020-07-16
Anticipated expiration: 2021-07-11
Also published as: CN111436127A

Abstract

The present application provides a reference signal sending method and apparatus, which can be applied to Internet of Vehicles, such as V2X, LTE-V, and V2V, or can be applied to a field such as D2D, intelligent driving, and an intelligent network connection vehicle. According to the method, a first terminal device may generate a reference signal according to a first parameter, wherein the first parameter is used for generating a sequence of the reference signal, and may be determined according to a second parameter, the second parameter comprising information for identifying a transmission link and/or transmission resource information; and then, the first terminal device may send the reference signal. By using the method, the first terminal device may generate the reference signal according to the information for identifying the transmission link and/or the transmission resource information, so as to reduce signal interference during sending the reference signal.

Description

Reference signal sending method and device

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

本申请要求在2019年01月11日提交中国专利局、申请号为201910028234.X、申请名称为“一种参考信号发送方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application requires the priority of the Chinese patent application submitted to the China Patent Office on January 11, 2019, with the application number 201910028234.X and the application name "a reference signal transmission method and device", the entire content of which is incorporated by reference in In this application.

Technical field

本申请涉及移动通信技术领域，尤其涉及一种参考信号发送方法及装置。This application relates to the technical field of mobile communications, and in particular, to a method and a device for sending reference signals.

Background technique

在3GPP正在研究新无线(New Radio，NR)通信技术中的低时延、高可靠的传输技术，以便用于自动驾驶、工业自动化、虚拟现实、增强现实等新出现的应用场景和砖雕求。要实现整个传输的高可靠性，需要同时支持控制信息的高可靠传输和数据的高可靠传输。例如，在时延方面，要实现端到端传输时延不超过3ms的要求，或最大不超过10ms的端到端的时延要求。在可靠性方面，要求达到传输99.999％或99.9999％。因此，如何实现低时延、高可靠的传输，是5G中的关键技术。要实现高可靠、低实现的无线传输，需要解决在干扰环境下的参考信号传输的问题。如果发送的参考信号之间存在干扰，则会影响到相应信号的接收和检测，难以保证单次传输的正确性，从而会影响到整个系统的时延和可靠性。3GPP is studying the low-latency, high-reliability transmission technology in the new radio (NR) communication technology for use in emerging applications such as autonomous driving, industrial automation, virtual reality, and augmented reality. . To achieve high reliability of the entire transmission, it is necessary to support both highly reliable transmission of control information and highly reliable transmission of data. For example, in terms of delay, the end-to-end transmission delay must not exceed 3ms, or the maximum end-to-end delay requirement should not exceed 10ms. In terms of reliability, it is required to achieve 99.999% or 99.9999% transmission. Therefore, how to achieve low-latency, high-reliability transmission is the key technology in 5G. To achieve high reliability and low realization of wireless transmission, it is necessary to solve the problem of reference signal transmission in an interference environment. If there is interference between the transmitted reference signals, it will affect the reception and detection of the corresponding signals, and it is difficult to ensure the accuracy of a single transmission, which will affect the delay and reliability of the entire system.

因此，在低时延、高可靠的传输中，NR如何实现参考信号的高可靠传输是一个待解决的问题。Therefore, in low-latency, high-reliability transmission, how to achieve high-reliability transmission of reference signals by NR is a problem to be solved.

发明内容Summary of the invention

本申请提供一种参考信号发送方法及装置，用以降低参考信号的干扰，提高发送参考信号时的可靠性。The present application provides a method and a device for sending a reference signal to reduce the interference of the reference signal and improve the reliability when sending the reference signal.

第一方面，本申请提供一种参考信号发送方法，该方法可由第一终端设备实施。根据该方法，第一终端设备可根据第一参数生成参考信号，其中，该第一参数用于生成该参考信号的序列，该第一参数可以根据第二参数确定，该第二参数包括用于标识传输链路的信息和/或传输资源信息。此后，第一终端设备可发送该参考信号。In a first aspect, the present application provides a reference signal transmission method, which may be implemented by a first terminal device. According to the method, the first terminal device may generate a reference signal according to a first parameter, where the first parameter is used to generate the sequence of the reference signal, the first parameter may be determined according to a second parameter, and the second parameter includes Information identifying transmission links and/or transmission resource information. Thereafter, the first terminal device may send the reference signal.

采用以上方法，第一终端设备可根据用于标识传输链路的信息和/或传输资源信息生成参考信号，以降低发送参考信号时的信号干扰。With the above method, the first terminal device may generate a reference signal according to the information for identifying the transmission link and/or the transmission resource information, so as to reduce signal interference when sending the reference signal.

在一种可能的设计中，第一终端设备可以从网络设备接收所述第一参数。第一参数可以是网络设备根据第二参数确定的。In a possible design, the first terminal device may receive the first parameter from the network device. The first parameter may be determined by the network device according to the second parameter.

在一种可能的设计中，第一终端设备还可以从网络设备接收所述第二参数，所述第一终端设备根据所述第二参数，确定所述第一参数。In a possible design, the first terminal device may also receive the second parameter from the network device, and the first terminal device determines the first parameter according to the second parameter.

在一种可能的设计中，第一终端设备还可以向第二终端设备发送第一参数和/或第二参数，以使第二终端设备根据第一参数确定参考信号的序列。In a possible design, the first terminal device may also send the first parameter and/or the second parameter to the second terminal device, so that the second terminal device determines the sequence of the reference signal according to the first parameter.

在一种可能的设计中，第一参数可以包括以下中的至少一种：所述序列的根序列号、所述序列的循环移位值、所述序列的正交覆盖码。In a possible design, the first parameter may include at least one of the following: a root sequence number of the sequence, a cyclic shift value of the sequence, and an orthogonal cover code of the sequence.

在一种可能的设计中，若序列包括随机序列，该第一参数还可以包括该序列的序列初始值和/或该序列的初始位置。In a possible design, if the sequence includes a random sequence, the first parameter may further include an initial value of the sequence of the sequence and/or an initial position of the sequence.

在一种可能的设计中，该用于标识传输链路的信息可以包括以下信息中的至少一种：第一终端设备的标识；或者，第二终端设备的标识；或者，源标识；或者，目的标识；或者，所述第一终端设备与所述第二终端设备的联合标识；或者，源标识与目的标识的联合标识；或者，网络设备为所述第一终端设备配置的RNTI；或者，网络设备为所述第二终端设备配置的RNTI；或者，网络设备为所述第一终端设备和所述第二终端设备配置的RNTI；或者，HARQ进程号；其中，所述传输链路由于所述第一终端设备与所述第二终端设备之间的传输。In a possible design, the information for identifying the transmission link may include at least one of the following information: the identification of the first terminal device; or, the identification of the second terminal device; or, the source identification; or, Destination identification; or, a joint identification of the first terminal device and the second terminal device; or, a joint identification of the source identification and the destination identification; or, the RNTI configured by the network device for the first terminal device; or, The network device is the RNTI configured by the second terminal device; or, the network device is the RNTI configured by the first terminal device and the second terminal device; or, the HARQ process number; wherein, the transmission link is The transmission between the first terminal device and the second terminal device.

在一种可能的设计中，该参考信号可以包括以下参考信号中的至少一种：解调参考信号(DM-RS)、信道状态信息参考信号(CSI-RS)、用于承载控制信息的参考信号、相位跟踪参考信号(PT-RS)、同步参考信号、或无线链路跟踪参考信号(Radio Link Monitoring(RLM)RLM-RS)。In a possible design, the reference signal may include at least one of the following reference signals: demodulation reference signal (DM-RS), channel state information reference signal (CSI-RS), reference for carrying control information Signal, phase tracking reference signal (PT-RS), synchronization reference signal, or radio link tracking reference signal (Radio Link Monitoring (RLM) RLM-RS).

在一种可能的设计中，该传输资源信息可以包括以下信息中的至少一种：第一资源的信息，所述第一资源为所述第一终端设备向第二终端设备发送第一数据的资源；或者，第二资源的信息，所述第二资源为所述第一终端设备向第二终端设备发送第一控制信息的资源；或者，第三资源的信息，所述第三资源为传输第二数据的资源，所述第二数据为所述第一终端设备从第二终端设备接收的数据；或者，第四资源的信息，所述第四资源为传输第二控制信息的资源，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息。In a possible design, the transmission resource information may include at least one of the following information: information of a first resource, where the first resource is the first terminal device that sends the first data to the second terminal device Resources; or, information of a second resource, the second resource is a resource that the first terminal device sends first control information to a second terminal device; or, information of a third resource, the third resource is transmission A resource of second data, the second data is data received by the first terminal device from the second terminal device; or, information of a fourth resource, the fourth resource is a resource that transmits second control information, The second control information is control information received by the first terminal device from the second terminal device.

在一种可能的设计中，第二参数还可以包括以下信息中的至少一种：地理位置信息；或者，重传次数；或者，子载波间隔；或者，传输方式，所述传输方式包括单播、组播或广播；或者，第一控制信息中的特定字段的指示信息，所述第一控制信息为所述第一终端设备向第二终端设备发送的控制信息；或者，第二控制信息中的特定字段的指示信息，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息；或者，接收自网络设备的用于侧行链路的下行控制信息DCI的指示信息。In a possible design, the second parameter may further include at least one of the following information: geographic location information; or, the number of retransmissions; or, the subcarrier interval; or, the transmission method, which includes unicast , Multicast or broadcast; or, indication information of a specific field in the first control information, where the first control information is control information sent by the first terminal device to a second terminal device; or, in the second control information Indication information of a specific field of, the second control information is control information that the first terminal device receives from the second terminal device; or, an indication of downlink control information DCI for the side link received from the network device information.

在一种可能的设计中，所述参考信号可以包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示所述第一终端设备发送给第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给第二终端设备的反馈信息。In a possible design, the reference signal may include at least one of the following reference signals: the DM-RS of the first data; or, the DM-RS of the first control information; or, the bearer RS of the first control information; wherein the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is the first terminal Feedback information sent by the device to the second terminal device.

在一种可能的设计中，所述第一资源可以包括所述第二资源。和/或,所述第三资源包括所述第四资源。In a possible design, the first resource may include the second resource. And/or, the third resource includes the fourth resource.

采用以上设计，网络设备可指示进行单播传输的一对UE根据相同的第一参数生成参考信号，并且该第一参数是针对这一对UE分配的，与网络设备为其他UE对分配的第一参数不同，从而可协调好不同UE发送参考信号的资源，以进一步降低发送参考信号时的干扰，实现网络设备更好的管理和协调效果。另外，网络设备也可以指示进行组播传输的一组UE根据相同的第一参数生成参考信号，并且该第一参数是针对这一组UE分配的，与网络设备为其他UE组分配的第一参数不同，也能够进一步降低发送参考信号时的干扰。With the above design, the network device may instruct a pair of UEs performing unicast transmission to generate a reference signal according to the same first parameter, and the first parameter is allocated for this pair of UEs, and the network device allocates the first One parameter is different, so that resources for sending reference signals by different UEs can be coordinated, so as to further reduce interference when sending reference signals, and achieve better management and coordination effects of network devices. In addition, the network device may also instruct a group of UEs performing multicast transmission to generate a reference signal according to the same first parameter, and the first parameter is allocated to this group of UEs, and the network device allocates the first to other UE groups Different parameters can also further reduce interference when sending reference signals.

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，则第一终端设备可以根据以下公式确定所述序列的根序列号：In a possible design, if the first parameter includes the root serial number of the sequence, the first terminal device may determine the root serial number of the sequence according to the following formula:

u＝f(x)modM；u=f(x)modM;

其中，u为所述根序列号，f(x)为所述第二参数的函数，x表示所述第二参数，mod M表示对M取模，M为正整数。Where u is the root serial number, f(x) is a function of the second parameter, x represents the second parameter, mod M represents modulo M, and M is a positive integer.

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，则第一终端设备可以根据所述第二参数确定序列跳，根据所述序列跳确定第一参数；和/或，所述第一终端设备可以根据所述第二参数确定序列组跳，根据所述组跳确定第一参数。In a possible design, if the first parameter includes the root sequence number of the sequence, the first terminal device may determine a sequence hop according to the second parameter, and determine the first parameter according to the sequence hop; and /Or, the first terminal device may determine a sequence group hop according to the second parameter, and determine the first parameter according to the group hop.

在一种可能的设计中，若所述第一参数包括所述序列的循环移位，则第一终端设备可以根据以下公式确定所述序列的循环移位：In a possible design, if the first parameter includes the cyclic shift of the sequence, the first terminal device may determine the cyclic shift of the sequence according to the following formula:

其中，α为所述循环移位，h(x)为所述第二参数的函数，x表示所述第二参数，mod N表示对N取模，N为所述序列的长度。Where α is the cyclic shift, h(x) is a function of the second parameter, x represents the second parameter, mod N represents modulo N, and N is the length of the sequence.

在一种可能的设计中，所述第一参数包括所述序列的正交覆盖码位，则第一终端设备根据以下公式确定所述序列的正交覆盖码的索引：In a possible design, the first parameter includes the orthogonal cover code bits of the sequence, and the first terminal device determines the index of the orthogonal cover code of the sequence according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

其中，n_occ为所述正交覆盖码的索引，q(x)为所述第二参数的函数，x表示所述第二参数，mod K表示对K取模，K为正整数。Where n_occ is the index of the orthogonal cover code, q(x) is a function of the second parameter, x represents the second parameter, mod K represents the modulus of K, and K is a positive integer.

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的序列初始值，则第一终端设备可以根据以下公式确定所述序列的序列初始值：In a possible design, if the sequence includes a random sequence and the first parameter includes the sequence initial value of the sequence, the first terminal device may determine the sequence initial value of the sequence according to the following formula:

c _init＝(2 ^m*N ₁*N ₂+N ₃+f(x))mod(2 ³¹)； c _init = (2 ^m *N ₁ *N ₂ +N ₃ +f(x))mod(2 ³¹ );

或者，根据以下公式确定所述序列的序列初始值：Alternatively, the sequence initial value of the sequence is determined according to the following formula:

c _init＝(2 ^m*(N ₁+f(x))*N ₂+N ₃)mod(2 ³¹)； c _init = (2 ^m *(N ₁ +f(x))*N ₂ +N ₃ )mod(2 ³¹ );

c _init＝(2 ^m*N ₁*(N ₂+f(x))+N ₃)mod(2 ³¹)； c _init = (2 ^m *N ₁ *(N ₂ +f(x))+N ₃ )mod(2 ³¹ );

其中，c _init为所述序列的序列初始值，f(x)为所述第二参数的函数，x表示所述第二参数，mod表示取模运算，m、N ₁、N ₂以及N ₃为预设整数。 Where c _init is the sequence initial value of the sequence, f(x) is the function of the second parameter, x represents the second parameter, mod represents the modulus operation, m, N ₁ , N ₂ and N ₃ It is a preset integer.

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的初始位置，则第一终端设备可以根据以下公式确定所述序列的初始位置：In a possible design, if the sequence includes a random sequence and the first parameter includes the initial position of the sequence, the first terminal device may determine the initial position of the sequence according to the following formula:

Δ＝f(x)；Δ=f(x);

其中，Δ为所述初始位置，f(x)为所述第二参数的函数，x表示所述第二参数。Where Δ is the initial position, f(x) is a function of the second parameter, and x represents the second parameter.

在一种可能的设计中，所述第一终端设备在发送所述参考信号时，可以在时域上相邻的两个符号上发送所述参考信号。In a possible design, when sending the reference signal, the first terminal device may send the reference signal on two adjacent symbols in the time domain.

在一种可能的设计中，所述第一终端设备可以在时域上相邻的两个符号上相同的频域位置发送相同的所述参考信号。In a possible design, the first terminal device may send the same reference signal at the same frequency domain position on two adjacent symbols in the time domain.

第二方面，本申请提供一种资源确定方法，该方法可由第二终端设备实施。根据该方法，第二终端设备可确定第一参数，该第一参数用于生成参考信号的序列，所述第一参数根据第二参数确定，该第二参数可以包括用于标识传输链路的信息和/或传输资源信息。第二终端设备可根据所述第一参数从接收到的信号中检测所述参考信号。In a second aspect, the present application provides a resource determination method, which can be implemented by a second terminal device. According to this method, the second terminal device may determine a first parameter, which is used to generate a sequence of reference signals, the first parameter is determined according to a second parameter, and the second parameter may include a Information and/or transmission resource information. The second terminal device may detect the reference signal from the received signal according to the first parameter.

在一种可能的设计中，所述第二终端设备可以从网络设备和/或第一终端设备接收所述第一参数，所述参考信号为所述第一终端设备发送的。In a possible design, the second terminal device may receive the first parameter from the network device and/or the first terminal device, and the reference signal is sent by the first terminal device.

在一种可能的设计中，所述第一终端设备还可以从网络设备和/或第一终端设备接收所述第二参数，所述参考信号为所述第一终端设备发送的，此后，所述第一终端设备可根据所述第二参数，确定所述第一参数。In a possible design, the first terminal device may also receive the second parameter from the network device and/or the first terminal device, the reference signal is sent by the first terminal device, and thereafter, The first terminal device may determine the first parameter according to the second parameter.

在一种可能的设计中，该传输资源信息可以包括以下信息中的至少一种：第一资源的信息，所述第一资源为所述第一终端设备向第二终端设备发送第一数据的资源；或者，第二资源的信息，所述第二资源为所述第一终端设备向第二终端设备发送第一控制信息的资源；或者，第三资源的信息，所述第三资源为传输第二数据的资源，所述第二数据为所述第一终端设备从第二终端设备接收的数据；或者，第四资源的信息，所述第四资源为传输第二控制信息的资源，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息。其中，所述参考信号为所述第一终端设备发送的。In a possible design, the transmission resource information may include at least one of the following information: information of a first resource, where the first resource is the first terminal device that sends the first data to the second terminal device Resources; or, information of a second resource, the second resource is a resource that the first terminal device sends first control information to a second terminal device; or, information of a third resource, the third resource is transmission A resource of second data, the second data is data received by the first terminal device from the second terminal device; or, information of a fourth resource, the fourth resource is a resource that transmits second control information, The second control information is control information received by the first terminal device from the second terminal device. Wherein, the reference signal is sent by the first terminal device.

在一种可能的设计中，第二参数还可以包括以下信息中的至少一种：地理位置信息；或者，重传次数；或者，子载波间隔；或者，传输方式，所述传输方式包括单播、组播或广播；或者，第一控制信息中的特定字段的指示信息，所述第一控制信息为所述第一终端设备向第二终端设备发送的控制信息；或者，第二控制信息中的特定字段的指示信息，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息；或者，接收自网络设备的用于侧行链路的下行控制信息DCI的指示信息。其中，所述参考信号为所述第一终端设备发送的。In a possible design, the second parameter may further include at least one of the following information: geographic location information; or, the number of retransmissions; or, the subcarrier interval; or, the transmission method, which includes unicast , Multicast or broadcast; or, indication information of a specific field in the first control information, where the first control information is control information sent by the first terminal device to a second terminal device; or, in the second control information Indication information of a specific field of, the second control information is control information that the first terminal device receives from the second terminal device; or, an indication of downlink control information DCI for the side link received from the network device information. Wherein, the reference signal is sent by the first terminal device.

在一种可能的设计中，所述参考信号可以包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示所述第一终端设备发送给第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给第二终端设备的反馈信息。In a possible design, the reference signal may include at least one of the following reference signals: the DM-RS of the first data; or, the DM-RS of the first control information; or, the bearer RS of the first control information; wherein, the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is the first terminal Feedback information sent by the device to the second terminal device.

在一种可能的设计中，所述参考信号可以包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示第一终端设备发送给所述第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给所述第二终端设备的反馈信息，所述参考信号为所述第一终端设备发送的。In a possible design, the reference signal may include at least one of the following reference signals: the DM-RS of the first data; or, the DM-RS of the first control information; or, the bearer RS of the first control information; wherein, the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is the first terminal The feedback information sent by the device to the second terminal device, and the reference signal is sent by the first terminal device.

在一种可能的设计中，所述第一资源可以包括所述第二资源。和/或，所述第三资源可以包括所述第四资源。In a possible design, the first resource may include the second resource. And/or, the third resource may include the fourth resource.

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，所述第二终端设备可以根据以下公式确定所述序列的根序列号：In a possible design, if the first parameter includes the root serial number of the sequence, the second terminal device may determine the root serial number of the sequence according to the following formula:

u＝f(x)mod M；u=f(x)mod M;

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，第二终端设备可以根据所述第二参数确定序列跳，并根据所述序列跳确定第一参数；和/或，所述第二终端设备可以根据所述第二参数确定序列组跳，并根据所述组跳确定第一参数。In a possible design, if the first parameter includes the root sequence number of the sequence, the second terminal device may determine the sequence hop based on the second parameter, and determine the first parameter based on the sequence hop; and /Or, the second terminal device may determine the sequence group hop according to the second parameter, and determine the first parameter according to the group hop.

在一种可能的设计中，若所述第一参数包括所述序列的循环移位，所述第二终端设备可以根据以下公式确定所述序列的循环移位：In a possible design, if the first parameter includes the cyclic shift of the sequence, the second terminal device may determine the cyclic shift of the sequence according to the following formula:

在一种可能的设计中，若所述第一参数包括所述序列的正交覆盖码位，所述第二终端设备可以根据以下公式确定所述序列的正交覆盖码的索引：In a possible design, if the first parameter includes the orthogonal cover code bits of the sequence, the second terminal device may determine the index of the orthogonal cover code of the sequence according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的序列初始值，所述第二终端设备可以根据以下公式确定所述序列的序列初始值：In a possible design, if the sequence includes a random sequence and the first parameter includes the sequence initial value of the sequence, the second terminal device may determine the sequence initial value of the sequence according to the following formula:

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的初始位置，所述第二终端设备可以根据以下公式确定所述序列的初始位置：In a possible design, if the sequence includes a random sequence and the first parameter includes an initial position of the sequence, the second terminal device may determine the initial position of the sequence according to the following formula:

Δ＝f(x)；Δ=f(x);

第三方面，本申请提供一种通信装置，该通信装置可用于实现上述第一方面提供的方法中第一终端设备和/或上述第二方面提供的方法中第二终端设备的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。In a third aspect, the present application provides a communication device, which can be used to implement the functions of the first terminal device in the method provided in the first aspect above and/or the second terminal device in the method provided in the second aspect above. The above-mentioned functions can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

一种可能的设计中，所述通信装置的结构可包括收发器、存储器以及处理器。该收发器用于通信装置进行通信，如用于发送或接收上述参考信号。该存储器与所述处理器耦合，其用于保存通信装置必要的程序指令和数据。该处理器被配置为支持通信装置执行上述第一方面提供的方法中相应的功能和/或被配置为支持通信装置执行上述第二方面提供的方法中相应的功能，所述功能可通过调用存储器存储的程序指令实现。In a possible design, the structure of the communication device may include a transceiver, a memory, and a processor. The transceiver is used for communication by a communication device, for example, for sending or receiving the above reference signal. The memory is coupled to the processor and is used to store necessary program instructions and data of the communication device. The processor is configured to support the communication device to perform the corresponding function in the method provided in the above first aspect and/or configured to support the communication device to perform the corresponding function in the method provided in the above second aspect, the function can be Stored program instructions are implemented.

在实现第一终端设备的功能时，该处理器可用于根据第一参数生成参考信号，其中，该第一参数用于生成该参考信号的序列，该第一参数可以根据第二参数确定，该第二参数包括用于标识传输链路的信息和/或传输资源信息。此后，该收发器可发送该参考信号。When implementing the function of the first terminal device, the processor may be used to generate a reference signal according to a first parameter, wherein the first parameter is used to generate a sequence of the reference signal, the first parameter may be determined according to a second parameter, the The second parameter includes information for identifying the transmission link and/or transmission resource information. Thereafter, the transceiver can transmit the reference signal.

在一种可能的设计中，该收发器可以从网络设备接收所述第一参数。第一参数可以是网络设备根据第二参数确定的。In a possible design, the transceiver may receive the first parameter from the network device. The first parameter may be determined by the network device according to the second parameter.

在一种可能的设计中，该收发器还可以从网络设备接收所述第二参数，该处理器还可用于根据所述第二参数，确定所述第一参数。In a possible design, the transceiver may also receive the second parameter from the network device, and the processor may be further configured to determine the first parameter according to the second parameter.

在一种可能的设计中，该收发器还可以向第二终端设备发送第一参数和/或第二参数，以使第二终端设备根据第一参数确定参考信号的序列。In a possible design, the transceiver may also send the first parameter and/or the second parameter to the second terminal device, so that the second terminal device determines the sequence of the reference signal according to the first parameter.

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，则该处理器可以根据以下公式确定所述序列的根序列号：In a possible design, if the first parameter includes the root serial number of the sequence, the processor may determine the root serial number of the sequence according to the following formula:

u＝f(x)mod M；u=f(x)mod M;

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，则该处理器可以根据所述第二参数确定序列跳，并根据所述序列跳确定第一参数；和/或，该处理器可以根据所述第二参数确定序列组跳，并根据所述组跳确定第一参数。In a possible design, if the first parameter includes the root sequence number of the sequence, the processor may determine a sequence jump according to the second parameter, and determine the first parameter according to the sequence jump; and /Or, the processor may determine the sequence group jump according to the second parameter, and determine the first parameter according to the group jump.

在一种可能的设计中，若所述第一参数包括所述序列的循环移位，则该处理器可以根据以下公式确定所述序列的循环移位：In a possible design, if the first parameter includes the cyclic shift of the sequence, the processor may determine the cyclic shift of the sequence according to the following formula:

在一种可能的设计中，若所述第一参数包括所述序列的正交覆盖码位，则该处理器可以根据以下公式确定所述序列的正交覆盖码的索引：In a possible design, if the first parameter includes the orthogonal cover code bits of the sequence, the processor may determine the index of the orthogonal cover code of the sequence according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的序列初始值，则该处理器可以根据以下公式确定所述序列的序列初始值：In a possible design, if the sequence includes a random sequence and the first parameter includes the sequence initial value of the sequence, the processor may determine the sequence initial value of the sequence according to the following formula:

c _init＝ ⁽2 ^m*N ₁*N ₂+N ₃+f(x))mod(2 ³¹)； c _init = ⁽ 2 ^m *N ₁ *N ₂ +N ₃ +f(x))mod(2 ³¹ );

c _init＝ ⁽2 ^m*N ₁*(N ₂+f(x))+N ₃)mod(2 ³¹)； c _init = ⁽ 2 ^m *N ₁ *(N ₂ +f(x))+N ₃ )mod(2 ³¹ );

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的初始位置，则该处理器可以根据以下公式确定所述序列的初始位置：In a possible design, if the sequence includes a random sequence and the first parameter includes an initial position of the sequence, the processor may determine the initial position of the sequence according to the following formula:

Δ＝f(x)；Δ=f(x);

在一种可能的设计中，该收发器在发送所述参考信号时，可以在时域上相邻的两个符号上发送所述参考信号。In a possible design, when the transceiver transmits the reference signal, the reference signal may be transmitted on two adjacent symbols in the time domain.

在一种可能的设计中，该收发器可以在时域上相邻的两个符号上相同的频域位置发送相同的所述参考信号。In a possible design, the transceiver may send the same reference signal at the same frequency domain position on two adjacent symbols in the time domain.

在实现第一终端设备的功能时，该处理器可确定第一参数，该第一参数用于生成参考信号的序列，所述第一参数根据第二参数确定，该第二参数可以包括用于标识传输链路的信息和/或传输资源信息。该收发器还可根据所述第一参数从接收到的信号中检测所述参考信号。When implementing the function of the first terminal device, the processor may determine a first parameter, the first parameter is used to generate a sequence of reference signals, the first parameter is determined according to a second parameter, and the second parameter may include Information identifying transmission links and/or transmission resource information. The transceiver may also detect the reference signal from the received signal according to the first parameter.

在一种可能的设计中，该收发器可以从网络设备和/或第一终端设备接收所述第一参数，所述参考信号为所述第一终端设备发送的。In a possible design, the transceiver may receive the first parameter from a network device and/or a first terminal device, and the reference signal is sent by the first terminal device.

在一种可能的设计中，该收发器还可以从网络设备和/或第一终端设备接收所述第二参数，所述参考信号为所述第一终端设备发送的，此后，所述该处理器可根据所述第二参数，确定所述第一参数。In a possible design, the transceiver may also receive the second parameter from a network device and/or a first terminal device, the reference signal is sent by the first terminal device, and thereafter, the processing The controller may determine the first parameter according to the second parameter.

在一种可能的设计中，所述参考信号包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示第一终端设备发送给所述第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给所述第二终端设备的反馈信息，所述参考信号为所述第一终端设备发送的。In a possible design, the reference signal includes at least one of the following reference signals: a DM-RS of the first data; or, a DM-RS of the first control information; or, carrying the RS of first control information; wherein, the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is the first terminal device For feedback information sent to the second terminal device, the reference signal is sent by the first terminal device.

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，该处理器可以根据以下公式确定所述序列的根序列号：In a possible design, if the first parameter includes the root serial number of the sequence, the processor may determine the root serial number of the sequence according to the following formula:

u＝f(x)mod M；u=f(x)mod M;

在一种可能的设计中，若所述第一参数包括所述序列的根序列号，该处理器可以根据所述第二参数确定序列跳，并根据所述序列跳确定第一参数；和/或，该处理器可以根据所述第二参数确定序列组跳，并根据所述组跳确定第一参数。In a possible design, if the first parameter includes the root sequence number of the sequence, the processor may determine a sequence jump according to the second parameter, and determine the first parameter according to the sequence jump; and// Or, the processor may determine the sequence group jump according to the second parameter, and determine the first parameter according to the group jump.

在一种可能的设计中，若所述第一参数包括所述序列的循环移位，该处理器可以根据以下公式确定所述序列的循环移位：In a possible design, if the first parameter includes the cyclic shift of the sequence, the processor may determine the cyclic shift of the sequence according to the following formula:

在一种可能的设计中，若所述第一参数包括所述序列的正交覆盖码位，该处理器可以根据以下公式确定所述序列的正交覆盖码的索引：In a possible design, if the first parameter includes the orthogonal cover code bits of the sequence, the processor may determine the index of the orthogonal cover code of the sequence according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的序列初始值，该处理器可以根据以下公式确定所述序列的序列初始值：In a possible design, if the sequence includes a random sequence and the first parameter includes the sequence initial value of the sequence, the processor may determine the sequence initial value of the sequence according to the following formula:

在一种可能的设计中，若所述序列包括随机序列，所述第一参数包括所述序列的初始位置，该处理器可以根据以下公式确定所述序列的初始位置：In a possible design, if the sequence includes a random sequence and the first parameter includes an initial position of the sequence, the processor may determine the initial position of the sequence according to the following formula:

Δ＝f(x)；Δ=f(x);

第四方面，本申请提供了一种计算机存储介质，其上存储有代码，这些代码被计算机调用执行时，可以使得计算机实现上述第一方面提供的方法中第一终端设备和/或上述第一方面提供的方法中第二终端设备的功能。According to a fourth aspect, the present application provides a computer storage medium on which codes are stored. When the codes are called and executed by a computer, the computer can implement the first terminal device and/or the first terminal in the method provided in the first aspect The function of the second terminal device in the method provided in the aspect.

第五方面，本申请提供了一种计算机程序产品。该计算机程序产品在被计算机调用执行时，可以使得计算机实现上述第一方面提供的方法中第一终端设备和/或上述第一方面提供的方法中第二终端设备的功能。In a fifth aspect, the present application provides a computer program product. When the computer program product is called and executed by a computer, it can cause the computer to implement the functions of the first terminal device in the method provided in the first aspect and/or the second terminal device in the method provided in the first aspect.

第六方面，本申请提供了一种系统，该系统包括上述第一方面提供的方法中第一终端设备和/或上述第一方面提供的方法中第二终端设备。In a sixth aspect, the present application provides a system including the first terminal device in the method provided in the first aspect above and/or the second terminal device in the method provided in the first aspect above.

第七方面，本申请提供了一种芯片或芯片系统，该芯片可与收发器耦合，用于实现上述第一方面提供的方法中第一终端设备和/或上述第一方面提供的方法中第二终端设备的功能。该芯片系统可包括以上所述芯片。According to a seventh aspect, the present application provides a chip or chip system, the chip may be coupled to a transceiver, and used to implement the first terminal device in the method provided in the first aspect above and/or the first terminal device in the method provided in the above first aspect 2. The function of the terminal equipment. The chip system may include the chip described above.

BRIEF DESCRIPTION

图1为本申请提供的一种无线通信系统的架构示意图；1 is a schematic structural diagram of a wireless communication system provided by this application;

图2为本申请提供的另一种无线通信系统的架构示意图；2 is a schematic structural diagram of another wireless communication system provided by this application;

图3为本申请提供的一种参考信号生成方法的流程示意图；3 is a schematic flowchart of a method for generating a reference signal provided by this application;

图4为本申请提供的另一种参考信号生成方法的流程示意图；4 is a schematic flowchart of another method for generating a reference signal provided by this application;

图5为本申请提供的另一种无线通信系统的架构示意图；5 is a schematic structural diagram of another wireless communication system provided by this application;

图6为本申请提供的另一种参考信号生成方法的流程示意图；FIG. 6 is a schematic flowchart of another method for generating a reference signal provided by this application;

图7为本申请提供的一种随机序列的示意图；7 is a schematic diagram of a random sequence provided by this application;

图8为本申请提供的一种通信装置的结构示意图；8 is a schematic structural diagram of a communication device provided by this application;

图9为本申请提供的另一种通信装置的结构示意图。9 is a schematic structural diagram of another communication device provided by this application.

detailed description

为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

下面对本申请实施例涉及的术语进行解释：The following explains the terms involved in the embodiments of the present application:

1、至少一个，是指一个，或一个以上，即包括一个、两个、三个及以上。1. At least one refers to one, or more than one, including one, two, three or more.

2、多个，是指两个，或两个以上，即包括两个、三个及以上。2. Multiple refers to two or more than two, including two, three or more.

3、携带，可以是指某消息用于承载某信息或数据，也可以是指某消息由某信息构成。3. Carrying, which can mean that a message is used to carry certain information or data, or it can mean that a message is composed of certain information.

4、侧行链路(sidelink)，用于终端和终端之间的设备到设备(device to device，D2D) 通信。应理解，本申请实施例所涉及的sidelink传输可以为sidelink数据传输，或sidelink信号传输。具体的，sidelink传输可以包括数据的传输，也可以包括控制信息的传输，也可以即包括数据传输又包括控制信息的传输。本申请中，传输可以是指发送和/或接收和/或感知。4. Sidelink, used for device-to-device (D2D) communication between terminals. It should be understood that the sidelink transmission involved in the embodiments of the present application may be sidelink data transmission or sidelink signal transmission. Specifically, the sidelink transmission may include data transmission, or may include control information transmission, or may include both data transmission and control information transmission. In this application, transmission may refer to sending and/or receiving and/or sensing.

5、单播是指一个终端装置向另一个终端装置的传输信息；组播是指一个终端装置向多个终端装置传输信息；广播是指一个终端装置向其覆盖范围内所有终端装置传输信息，广播不限具体的接收对象。5. Unicast refers to the transmission of information from one terminal device to another terminal device; multicast refers to the transmission of information from one terminal device to multiple terminal devices; broadcast refers to the transmission of information from one terminal device to all terminal devices within its coverage, Broadcasting is not limited to specific recipients.

6、ZC序列，也可称为Zadoff–Chu序列，或Frank–Zadoff–Chu(FZC)序列或Chu序列，是完美序列中的一种。这个序列具有理想的周期自相关特性。生成这个序列的主要参数有序列的根序列号，循环移位值。6. ZC sequence, also known as Zadoff–Chu sequence, or Frank–Zadoff–Chu (FZC) sequence or Chu sequence, is one of the perfect sequences. This sequence has ideal periodic autocorrelation characteristics. The main parameters for generating this sequence are the root sequence number of the sequence and the cyclic shift value.

ZC序列可通过如下公式定义：The ZC sequence can be defined by the following formula:

其中，

为参考信号序列，α为序列的循环移位值，u和v是生成基序列的参数。基序列

可以按如下方式生成： among them,

For the reference signal sequence, α is the cyclic shift value of the sequence, u and v are the parameters for generating the base sequence. Base sequence

Can be generated as follows:

其中，

among them,

7、物理侧行链路反馈信道(physical sidelink feedback channel，PSFCH)，是指在需要反馈的场景下终端设备在sidelink上承载侧行链路反馈控制信息(sidelink feedback control information，SFCI)的信道。7. Physical sidelink feedback channel (physical sidelink feedback channel, PSFCH) refers to a channel in which terminal equipment carries sidelink feedback control information (sidelink feedback control information (SFCI)) on the sidelink in a scenario where feedback is required.

8、参考信号与参考信号的序列。参考信号是根据参考信号的序列生成的。具体的，通常直接生成的参考信号的序列可以是实数序列，也可以是复数序列。当为实数序列时，可以是由{0，1}组成的具有一定长度的二进制数串或者{-1，1}组成的码元串，还可以是其它实数值组成的具有一定长度码元串。当为复数序列时，只是相应的序列码元为复数而已。根据确定的参考信号的序列，得到直接映射到特定时频资源上的参考信号的映射符号，然后将这些参考信号的映射符号映射到参考信号所在的时频资源上，形成参考信号。8. Reference signal and reference signal sequence. The reference signal is generated based on the sequence of reference signals. Specifically, the sequence of the reference signal that is usually directly generated may be a real sequence or a complex sequence. When it is a real number sequence, it can be a binary number string composed of {0, 1} with a certain length or a symbol string composed of {-1, 1}, or it can be a symbol string composed of other real values with a certain length . When it is a complex sequence, only the corresponding sequence symbol is a complex number. According to the determined sequence of reference signals, mapping symbols of reference signals directly mapped to specific time-frequency resources are obtained, and then mapping symbols of these reference signals are mapped to time-frequency resources where the reference signals are located to form reference signals.

下面，结合附图对本申请实施例进行详细说明。首先，介绍本申请实施例提供的无线通信系统，本申请提供的参考信号发送方法可应用于该系统，然后介绍本申请实施例提供的信号传输方法，最后介绍本申请实施例提供的通信装置。The embodiments of the present application will be described in detail below with reference to the drawings. First, the wireless communication system provided by the embodiments of the present application is introduced, the reference signal transmission method provided by the present application can be applied to the system, then the signal transmission method provided by the embodiments of the present application is introduced, and finally the communication device provided by the embodiments of the present application is introduced.

如图1所示，本申请实施例提供的无线通信系统可包括UE 101以及UE 102。可选的，该无线通信系统还可包括网络设备103。应理解，本申请实施例提供的无线通信系统的应用场景包括但不限于全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、未来的第五代(5th Generation， 5G)系统、新无线(New Radio，NR)通信系统、NR车联网(vehicle to everything，V2X)系统或未来基于移动通信的车联网系统等。应理解，本申请实施例提供的无线通信系统100，即可适用于低频场景(sub 6G)，也适用于高频场景(above6G)。As shown in FIG. 1, the wireless communication system provided by the embodiments of the present application may include UE 101 and UE 102. Optionally, the wireless communication system may further include a network device 103. It should be understood that the application scenarios of the wireless communication system provided by the embodiments of the present application include, but are not limited to, Global System of Mobile (GSM) system, Code Division Multiple Access (CDMA) system, wideband code division Wideband Code (Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system , LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Global Interoperability for Microwave Access (WiMAX) communication system, and the future fifth generation (5th Generation (5G) system, New Radio (NR) communication system, NR vehicle to vehicle (V2X) system or future mobile communication-based vehicle networking system. It should be understood that the wireless communication system 100 provided by the embodiments of the present application can be applied to both low-frequency scenarios (sub-6G) and high-frequency scenarios (above6G).

示例性的，UE 101、UE 102可以是终端(terminal)、移动台(mobile station，MS)、移动终端(mobile terminal)等设备，该UE 101能够与一个或多个通信系统的一个或多个网络设备进行通信，并接受网络设备提供的网络服务，这里的网络设备可以包括但不限于图示网络设备103。举例来说，本申请实施例中的UE 101、UE 102可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等，UE 101、UE 102还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。UE 101、UE 102也可以是具有通信功能的通信芯片。在本申请实施例中，UE 101、UE 102可被配置为支持sidelink传输。Exemplarily, UE 101 and UE 102 may be devices such as terminals, mobile stations (MS), mobile terminals, etc. The UE 101 can communicate with one or more of one or more communication systems The network device communicates and accepts network services provided by the network device. The network device here may include but is not limited to the illustrated network device 103. For example, UE 101 and UE 102 in the embodiments of the present application may be mobile phones (or “cellular” phones), computers with mobile terminals, etc. UE 101 and UE 102 may also be portable, portable, handheld Mobile devices built into computers, built into computers, or onboard. UE 101 and UE 102 may also be communication chips with communication functions. In the embodiment of the present application, UE 101 and UE 102 may be configured to support sidelink transmission.

网络设备103可包括基站(base station，BS)，或包括基站以及用于控制基站的无线资源管理设备等，这里的基站，可以是GSM或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)、小基站(micro/pico eNB)或收发节点(transmission/reception point，TRP)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该基站200可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的基站或者未来演进的PLMN网络中的基站等，例如，NR基站，本申请实施例并不限定。其中，5G中的基站还可以称为下一代节点(generation NodeB，gNB)。The network device 103 may include a base station (BS), or a base station and a radio resource management device for controlling the base station, etc. The base station here may be a base station (Base Transceiver Station, BTS) in a GSM or CDMA system, or It can be a base station (NodeB, NB) in a WCDMA system, or an evolutionary base station (Evolutional NodeB, eNB or eNodeB), a small base station (micro/pico eNB) or a transmission/reception node (transmission/reception point, TRP) in an LTE system ), it can also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the base station 200 can be a relay station, an access point, an in-vehicle device, a wearable device, and a base station in a future 5G network Or a base station in a PLMN network that evolves in the future, such as an NR base station, which is not limited in this embodiment of the present application. Among them, the base station in 5G can also be called a next generation node (generation NodeB, gNB).

可选的，基于如图1所示的无线通信系统，网络设备103可以提供无线小区信号覆盖，并提供一个或多个小区为UE 101、UE102服务。具体的，网络设备103和UE 101可以通过通用用户和网络的空口(Universal User to Network interface，Uu空口)进行传输，网络设备103也可与UE 102通过Uu空口进行传输。另外，UE 101与UE 102之间可通过sidelink资源进行sidelink传输，其中，UE 101可以为sidelink传输的发送端设备，则UE 102可以是sidelink传输中的接收端设备，或者，UE 102可以为sidelink传输中的发送端设备，UE101可以是sidelink传输中的接收端设备。Optionally, based on the wireless communication system shown in FIG. 1, the network device 103 may provide wireless cell signal coverage and provide one or more cells to serve the UE 101 and the UE 102. Specifically, the network device 103 and the UE 101 can be transmitted through a universal user and network air interface (Universal User to Network Interface, Uu air interface), and the network device 103 and the UE 102 can also be transmitted through the Uu air interface. In addition, the sidelink transmission can be performed between the UE 101 and the UE 102 through sidelink resources. Among them, the UE 101 can be a sender device for sidelink transmission, then the UE 102 can be a receiver device in sidelink transmission, or the UE 102 can be a sidelink. For the sending end device in transmission, the UE 101 may be the receiving end device in sidelink transmission.

可选的，终端设备与终端设备之间的通信链路可以为设备到设备通信(device-to-device，D2D)链路，或者，边链路。在车联网中，终端设备与终端设备之间的通信链路还可以为车辆对车辆(vechile-to-vechile，V2V)链路，车辆到行人(vechile-to-pedestrian，V2P)链路，车辆到基础设施(vechile-to-infrastructure，V2I)链路，车到任意设备之间(vechile-to-X，V2X)的链路。本申请以下各实施例中主要使用边链路/第一链路来描述终端设备与终端设备之间的通信传输，使用蜂窝链路/第二链路来描述网络设备与终端设备之间的通信传输。边链路上可以进行终端设备与终端设备之间的单播、组播、广播中的至少一种方式进行通信。Optionally, the communication link between the terminal device and the terminal device may be a device-to-device communication (device-to-device, D2D) link, or an edge link. In the Internet of Vehicles, the communication link between the terminal device and the terminal device may also be a vehicle-to-vehicle (vechile-to-vechile, V2V) link, a vehicle-to-pedestrian (vechile-to-pedestrian, V2P) link, a vehicle To the infrastructure (vechile-to-infrastructure, V2I) link, the link between the vehicle and any device (vechile-to-X, V2X). In the following embodiments of the present application, the side link/first link is mainly used to describe the communication transmission between the terminal device and the terminal device, and the cellular link/second link is used to describe the communication between the network device and the terminal device transmission. The side link can perform communication in at least one of unicast, multicast, and broadcast between the terminal device and the terminal device.

下面以如图2所示的车联网场景为例，进一步说明本申请实施例提供的无线通信系统的应用场景。The following uses the Internet of Vehicles scenario shown in FIG. 2 as an example to further explain the application scenario of the wireless communication system provided by the embodiment of the present application.

如图2所示，车联网场景下的无线通信系统可包括多个车载设备(位于车辆上，如图2所示的UE1、UE2以及UE3，可分别位于不同的车辆上)，多个车载设备之间可以相互通信，如数之间通过sidelink进行传输。无线通信系统还可包括一个或多个基站设备(如eNB和/或gNB)，它可以与各个车载设备和/或路侧单元(road side unit，RSU)进行通信。无线通信系统还可包括一个或多个RSU，它可以与各个车载设备和/或基站设备进行通信，该RSU的功能也可以由一个车载设备或一个基站设备来实现。RSU可用于进行车辆识别，车辆违章行为识别等功能。无线通信系统还可包括一个或多个全球导航卫星系统(global navigation satellite system，GNSS)，用于为无线通信系统中的多个车载设备、基站设备以及RSU提供定位信息与授时信息。As shown in FIG. 2, the wireless communication system in the IoV scenario may include multiple in-vehicle devices (located on the vehicle, such as UE1, UE2, and UE3 shown in FIG. 2 may be located in different vehicles), and multiple Can communicate with each other, such as through the sidelink transmission. The wireless communication system may further include one or more base station devices (such as eNB and/or gNB), which can communicate with various vehicle-mounted devices and/or road side units (RSUs). The wireless communication system may further include one or more RSUs, which may communicate with various vehicle-mounted devices and/or base station devices, and the functions of the RSU may also be implemented by one vehicle-mounted device or a base station device. RSU can be used for vehicle recognition, vehicle violation behavior recognition and other functions. The wireless communication system may further include one or more global navigation satellite systems (GNSS), which are used to provide positioning information and timing information for multiple vehicle-mounted devices, base station devices, and RSUs in the wireless communication system.

应理解，本申请实施例提供的参考信号的确定方法，可应用于如图2所示无线通信系统中多个车载设备之间的通信。It should be understood that the method for determining the reference signal provided by the embodiment of the present application may be applied to the communication between multiple in-vehicle devices in the wireless communication system shown in FIG. 2.

具体的，车载设备随着车辆高速移动，终端装置之间在相向行驶时，具有最大的相对移动速度，例如，UE3所在车辆与UE1所在车辆分别沿同一道路的不同行驶方向行驶，此时UE3与UE1之间的相对移动速度最大。为保证终端装置之间通信的可靠性，如图2所示无线通信系统中的通信装置之间(如，多个车载设备之间、车载设备与基站设备之间、车载设备与RSU之间以及基站设备与RSU之间等等)可以使用蜂窝链路的频谱进行通信，也可以使用5.9GHz附近的智能交通频谱进行通信。各通信装置相互通信的技术可以基于LTE协议进行增强，也可以基于D2D技术进行增强。Specifically, the in-vehicle device moves with the vehicle at a high speed, and the terminal devices have the largest relative moving speed when they are facing each other. For example, the vehicle where UE3 is located and the vehicle where UE1 is located are traveling in different directions on the same road. The relative movement speed between UE1 is the largest. To ensure the reliability of communication between terminal devices, as shown in FIG. 2 between the communication devices in the wireless communication system (eg, between multiple in-vehicle devices, between in-vehicle devices and base station devices, between in-vehicle devices and RSU, Between the base station equipment and the RSU, etc.) You can use the spectrum of the cellular link to communicate, or you can use the intelligent transportation spectrum around 5.9 GHz to communicate. The communication technology between the communication devices may be enhanced based on the LTE protocol, or may be enhanced based on the D2D technology.

如图3所示，本申请实施例提供的参考信号发送方法，可包括以下步骤：As shown in FIG. 3, the method for sending a reference signal provided by an embodiment of the present application may include the following steps:

S101：第一终端设备根据第一参数生成参考信号，该第一参数用于生成参考信号的序列，该第一参数是根据第二参数确定的，该第二参数可以包括用于标识传输链路的信息和/或传输资源信息；S101: A first terminal device generates a reference signal according to a first parameter, where the first parameter is used to generate a sequence of reference signals, the first parameter is determined according to a second parameter, and the second parameter may include a link for identifying the transmission link Information and/or transmission resource information;

S102：第一终端设备发送参考信号。在实施中，第一终端设备可向另一个终端设备(如第二终端设备)或网络设备发送该参考信号，本申请不做具体限定。S102: The first terminal device sends a reference signal. In implementation, the first terminal device may send the reference signal to another terminal device (such as a second terminal device) or a network device, which is not specifically limited in this application.

在实施中，第二终端设备也可确定第一参数，并根据第一参数从接收到的信号中检测第一终端设备发送的参考信号。In implementation, the second terminal device may also determine the first parameter, and detect the reference signal sent by the first terminal device from the received signal according to the first parameter.

应理解，如图3所示第一终端设备可以是本申请提供的无线通信系统中的通信装置，例如图1所示无线通信系统中的UE 101或UE 102，也可以是如图2所示无线通信系统中的UE1、UE2、UE3以及RSU中的任意一个。第二终端设备可以是与第一终端设备位于相同的无线通信系统中的另一通信装置。第二终端设备可以是如图1所示无线通信系统中的UE 101或UE 102，也可以是如图2所示无线通信系统中的UE1、UE2、UE3以及RSU中的任意一个。It should be understood that, as shown in FIG. 3, the first terminal device may be a communication device in the wireless communication system provided by the present application, for example, UE 101 or UE 102 in the wireless communication system shown in FIG. 1, or may be shown in FIG. 2. Any one of UE1, UE2, UE3 and RSU in the wireless communication system. The second terminal device may be another communication device located in the same wireless communication system as the first terminal device. The second terminal device may be UE 101 or UE 102 in the wireless communication system shown in FIG. 1, or any one of UE1, UE2, UE3, and RSU in the wireless communication system shown in FIG.

第一终端设备与第二终端设备之间可通过sidelink传输，也可通过Uu空口或回程链路(backhaul)传输。具体的，若无线通信系统存在网络设备，例如存在如图1所示网络设备103、如图2所示eNB或者gNB中的一个或多个，第一终端设备与第二终端设备之间可分别通过与网络设备之间的Uu空口实现传输，但也并不排除在无线通信系统存在网络设备的情况下，第一终端设备与第二终端设备之间进行sidelink传输的可能，如，第一终端设备与第二终端设备中只有一个终端设备位于网络设备提供的无线小区信号的覆盖范围内。若无线通信系统不存在网络设备，第一终端设备与第二终端设备之间可进行sidelink传输。The transmission between the first terminal device and the second terminal device may be through a sidelink, and may also be transmitted through a Uu air interface or a backhaul link (backhaul). Specifically, if there is a network device in the wireless communication system, for example, one or more of the network device 103 shown in FIG. 1, the eNB or gNB shown in FIG. 2, the first terminal device and the second terminal device The transmission is realized through the Uu air interface with the network device, but it does not rule out the possibility of sidelink transmission between the first terminal device and the second terminal device when there is a network device in the wireless communication system, for example, the first terminal Only one of the device and the second terminal device is within the coverage of the wireless cell signal provided by the network device. If there is no network device in the wireless communication system, sidelink transmission can be performed between the first terminal device and the second terminal device.

在实施中，本申请所涉及的第二参数可包括用于标识传输链路的信息。该信息可用于标识第一终端设备与第二终端设备之间的传输链路。In implementation, the second parameter involved in the present application may include information used to identify the transmission link. This information can be used to identify the transmission link between the first terminal device and the second terminal device.

具体的，第二参数可包括以下信息中的部分或全部：第一终端设备的标识、第二终端设备的标识、目的标识、用于标识单播链路的信息、用于标识组播链路的信息、第一终端设备与第二终端设备的联合标识、源标识与目的标识的联合标识、第一终端设备与第二终端设备的终端对标识、第一终端设备与第二终端设备所在终端设备组的终端组标识、网络设备为第一终端设备配置的无线网络临时标识(radio network tempory identity，RNTI)、网络设备为第二终端设备配置的RNTI、网络设备为第一终端设备和第二终端设备配置的RNTI或者混合自动重传请求(hybrid automatic repeat request，HARQ)进程号。Specifically, the second parameter may include some or all of the following information: the identifier of the first terminal device, the identifier of the second terminal device, the destination identifier, the information used to identify the unicast link, and the identifier used to identify the multicast link Information, the joint identification of the first terminal device and the second terminal device, the joint identification of the source identification and the destination identification, the terminal pair identification of the first terminal device and the second terminal device, the terminal where the first terminal device and the second terminal device are located The terminal group ID of the device group, the wireless network temporary identity (RNTI) configured by the network device for the first terminal device, the RNTI configured by the network device for the second terminal device, and the network device for the first terminal device and the second The RNTI or hybrid automatic repeat request (HARQ) process number configured by the terminal device.

下面，对上述的各种标识做进一步的说明。Next, the above-mentioned various signs will be further described.

第一终端设备的标识，可以是UE的媒体接入控制层(media access control layer，MAC)标识、网络标识、基站配置的标识(如第一终端设备的RNTI或其他唯一可以标识第一终端的编号。这些标识可以是第一终端的高层标识，也可以是第一终端在物理层使用的标识。可选地，当第一终端为发射设备时，即为源标识。The identifier of the first terminal device may be a media access control layer (MAC) identifier of the UE, a network identifier, an identifier configured by the base station (such as the RNTI of the first terminal device or other unique identifier that can identify the first terminal) Numbers. These identifiers can be the high-level identifiers of the first terminal or the identifiers used by the first terminal at the physical layer. Optionally, when the first terminal is a transmitting device, it is the source identifier.

可选地，当第一终端为接收设备时，即为目的标识。可选地，对于目的标识，第一终端设备以单播发送参考信号时，该目的标识可以是目的终端设备或接收机的标识。可选地，第一终端设备以组播发送参考信号时，该目的标识指示或确定用于一组终端设备进行组播接收的标识。可选地，第一终端设备以广播发送参考信号时，该目的标识指示或确定用于非特定用户的终端设备接收的标识。Optionally, when the first terminal is a receiving device, it is a destination identifier. Optionally, for the destination identification, when the first terminal device sends the reference signal in unicast, the destination identification may be the identification of the destination terminal device or the receiver. Optionally, when the first terminal device sends the reference signal in multicast, the destination identifier indicates or determines an identifier used for multicast reception by a group of terminal devices. Optionally, when the first terminal device sends the reference signal by broadcast, the destination identifier indicates or determines the identifier received by the terminal device for a non-specific user.

用于标识单播链路的信息。例如：用于唯一关联或确定一个单播链路的标识。Information used to identify unicast links. For example: used to uniquely associate or determine the identity of a unicast link.

第一终端设备与第二终端设备的联合标识。例如，第一终端设备的标识以及第二终端设备的标识的组合，可以是全部标识的组合，也可以各自取出一部分标识的组合。或者是源标识与目的标识的组合来代替或指示第一终端设备与第二终端设备的联合标识。The joint identification of the first terminal device and the second terminal device. For example, the combination of the identifier of the first terminal device and the identifier of the second terminal device may be a combination of all the identifiers, or a combination of a part of the identifiers taken out separately. Or a combination of the source identifier and the destination identifier to replace or indicate the joint identifier of the first terminal device and the second terminal device.

第一终端设备与第二终端设备的终端对标识。例如，可以是网络为做单播通信的第一终端设备与第二终端设备做单播通信时配置的标识。例如，在通过蜂窝链路发送给第一终端设备与第二终端设备对的下行控制信息(downlink control information，DCI)使用的UE对的RNTI。Terminal pair identifiers of the first terminal device and the second terminal device. For example, it may be an identifier configured by the network when the first terminal device performing unicast communication and the second terminal device performing unicast communication. For example, the RNTI of the UE pair used in downlink control information (DCI) sent to the first terminal device and the second terminal device pair through the cellular link.

第一终端设备与第二终端设备所在终端设备组的终端组标识。例如，可以是网络为做组播通信的多个设备配置的做组播通信时的标识。例如，在通过蜂窝链路发送给第一终端设备与第二终端设备所在终端组的DCI信息使用的RNTI。The terminal group identifier of the terminal device group where the first terminal device and the second terminal device are located. For example, it may be an identifier configured by the network for multiple devices that perform multicast communication when performing multicast communication. For example, the RNTI used in the DCI information sent to the terminal group where the first terminal device and the second terminal device are located through the cellular link.

网络设备为第一终端设备配置的标识。例如在通过蜂窝链路发送给第一终端设备的DCI信息使用的RNTI。The identifier configured by the network device for the first terminal device. For example, the RNTI used in the DCI information sent to the first terminal device through the cellular link.

网络设备为第二终端设备配置的标识。例如在通过蜂窝链路发送给第二终端设备的DCI信息使用的RNTI。The identifier configured by the network device for the second terminal device. For example, the RNTI used in the DCI information sent to the second terminal device through the cellular link.

网络设备为第一终端设备和第二终端设备配置的混合自动重传请求HARQ进程号。The HARQ process ID of the hybrid automatic retransmission request configured by the network device for the first terminal device and the second terminal device.

采用以上方式，第一终端设备可根据用于标识传输链路的信息生成参考信号，从而参考信号与传输链路有关，能够避免参考信号之间的干扰。具体的，当第一终端设备以单播方式向第二终端设备进行传输，可将该单播传输的传输链路的信息作为第二参数，第一终端设备与第二终端设备可根据该第二参数生成参考信号，从而可减轻第一终端设备与第二终端设备之间所发送的参考信号与其他参考信号之间的干扰，提高第一终端设备与第二终端设备在单播模式下的通信可靠性。当第一终端设备以多播方式向包括第二终端设备在内的多个终端设备进行传输，可将该多播传输的传输链路的信息作为第二参数，第一终端设备与该多个终端设备均可根据该第二参数生成参考信号，从而可减轻第一终端设备与该多个终端设备之间所发送的参考信号与其他参考信号之间的干扰，提高第一终端设备与多个终端设备在多播模式下的通信可靠性。In the above manner, the first terminal device may generate a reference signal according to the information used to identify the transmission link, so that the reference signal is related to the transmission link, and interference between the reference signals can be avoided. Specifically, when the first terminal device transmits to the second terminal device in a unicast manner, the information of the transmission link of the unicast transmission can be used as the second parameter, and the first terminal device and the second terminal device can Two parameters generate reference signals, so as to reduce the interference between the reference signal sent between the first terminal device and the second terminal device and other reference signals, and improve the first terminal device and the second terminal device in unicast mode Communication reliability. When the first terminal device performs multicast transmission to multiple terminal devices including the second terminal device, the information of the transmission link of the multicast transmission can be used as the second parameter. The first terminal device and the multiple Each terminal device can generate a reference signal according to the second parameter, thereby reducing interference between the reference signal sent between the first terminal device and the multiple terminal devices and other reference signals, and improving the first terminal device and multiple Communication reliability of terminal equipment in multicast mode.

另外在实施中，本申请所涉及的第二参数可包括传输资源信息。具体来说，当第一终端设备向第二终端设备发送第一数据时，第二参数可包括第一终端设备发送第一数据的资源(以下称为第一资源)，该资源可包括时域和/或频域资源。如，第二参数可包括承载第一数据的物理侧行共享信道(physical sidelink shared channel,PSSCH)所在的第一个子信道或者物理资源块(physical resource block，PRB)的编号；或者，第二参数可包括该PSSCH所在的中间的子信道或者PRB的编号；或者第二参数可包括该PSSCH所在的最后一个的子信道或者PRB的编号；或者，第二参数可包括通过信令配置或指示的该PSSCH所在的子信道或者PRB的编号。此时，参考信号可包括该第一数据的解调参考信号(demodulation reference signal，DM-RS)，或与PSSCH在同一个时隙中发送的信道状态信息参考信号(CSI-RS)或相位跟踪参考信号(phase tracking reference signal，PT-RS)。In addition, in implementation, the second parameter involved in the present application may include transmission resource information. Specifically, when the first terminal device sends the first data to the second terminal device, the second parameter may include a resource that the first terminal device sends the first data (hereinafter referred to as a first resource), and the resource may include a time domain And/or frequency domain resources. For example, the second parameter may include the number of the first subchannel or physical resource block (PRB) where the physical sidelink shared channel (PSSCH) carrying the first data is located; or, the second The parameter may include the number of the middle subchannel or PRB where the PSSCH is located; or the second parameter may include the number of the last subchannel or PRB where the PSSCH is located; or, the second parameter may include the one configured or indicated by signaling The number of the subchannel or PRB where the PSSCH is located. At this time, the reference signal may include a demodulation reference signal (DM-RS) of the first data, or a channel state information reference signal (CSI-RS) or phase tracking transmitted in the same time slot as the PSSCH Reference signal (phase-tracking reference signal, PT-RS).

当第一终端设备向第二终端设备发送第一控制信息时，第二参数可包括第一终端设备发送第一控制信息的资源(以下称为第二资源，第一资源可包括第二资源)，该资源可包括时域和/或频域资源。如，第二参数可包括承载第一控制信息的物理侧行控制信道(physical sidelink control channel,PSCCH)所在的第一个子信道或者PRB的编号；或者，第二参数可包括该PSCCH所在的中间的子信道或者PRB的编号；或者第二参数可包括该PSCCH所在的最后一个的子信道或者PRB的编号；或者，第二参数可包括通过信令配置或指示的该PSCCH所在的子信道或者PRB的编号。此时，该参考信号可以是该第一控制信息的DM-RS或承载该第一控制信息的导频信号(reference signal，RS)。该第一控制信息可用于指示第一终端设备向第二终端设备传输的第一数据，或者，该第一控制信息可以是发送至第二终端设备的反馈信息。另外，若第一控制信息为SFCI，第二参数还可包括承载该SFCI的PSFCH所在的第一个子信道或者PRB的编号；或者，第二参数可包括该PSFCH所在的中间的子信道或者PRB的编号；或者第二参数可包括该PSFCH所在的最后一个的子信道或者PRB的编号；或者，第二参数可包括通过信令配置或指示的该PSFCH所在的子信道或者PRB的编号。When the first terminal device sends the first control information to the second terminal device, the second parameter may include a resource that the first terminal device sends the first control information (hereinafter referred to as a second resource, and the first resource may include the second resource) , The resource may include time domain and/or frequency domain resources. For example, the second parameter may include the number of the first subchannel or PRB where the physical sidelink control channel (PSCCH) carrying the first control information is located; or, the second parameter may include the middle of the PSCCH The sub-channel or PRB number; or the second parameter may include the last sub-channel or PRB number where the PSCCH is located; or, the second parameter may include the sub-channel or PRB where the PSCCH is located or indicated by signaling configuration or indication Number. At this time, the reference signal may be a DM-RS of the first control information or a pilot signal (reference signal, RS) carrying the first control information. The first control information may be used to instruct the first data transmitted from the first terminal device to the second terminal device, or the first control information may be feedback information sent to the second terminal device. In addition, if the first control information is SFCI, the second parameter may also include the number of the first subchannel or PRB where the PSFCH carrying the SFCI is located; or, the second parameter may include the middle subchannel or PRB where the PSFCH is located Or the second parameter may include the number of the last subchannel or PRB where the PSFCH is located; or, the second parameter may include the number of the subchannel or PRB where the PSFCH is located or indicated by signaling.

采用以上设计，第一终端设备可根据自身向第二终端设备发送第一数据或第一控制信息时的传输参数确定参考信号的序列，可减轻根据该序列生成的参考信号与其他通信装置发送的参考信号之间产生干扰。With the above design, the first terminal device can determine the sequence of the reference signal according to the transmission parameters when it sends the first data or the first control information to the second terminal device, which can reduce the reference signal generated according to the sequence and other communication devices. Interference between reference signals.

此外，第二参数还可包括以上第一控制信息中的某个字段的指示信息或取值。例如，第一控制信息为sidelink控制信息(sidelink control information，SCI)，该字段可以是SCI指示的调制与编码方式(modulation and coding scheme，MCS)字段、资源分配字段或者时域位置字段，从而第一终端设备和/或第二终端设备可将该SCI中MCS字段的取值、资源分配字段的取值或者时域位置字段的取值作为第二参数。In addition, the second parameter may also include indication information or a value of a certain field in the above first control information. For example, the first control information is sidelink control information (sidelink control information, SCI), and this field may be a modulation and coding scheme (MCS) field, resource allocation field, or time domain location field indicated by the SCI, so that A terminal device and/or a second terminal device may use the value of the MCS field in the SCI, the value of the resource allocation field, or the value of the time domain location field as the second parameter.

另外，当第一终端设备从第二终端设备接收第二数据时，第二参数可包括第二终端设备发送第二数据的资源(以下称为第三资源)，该资源可包括时域和/或频域资源。例如，第二参数可包括承载第二数据的PSSCH所在的第一个子信道或者PRB的编号；或者，第二参数可包括该PSSCH所在的中间的子信道或者PRB的编号；或者第二参数可包括该PSSCH所在的最后一个的子信道或者PRB的编号；或者第二参数可包括通过信令配置或指示的该PSSCH所在子信道或者PRB的编号。In addition, when the first terminal device receives the second data from the second terminal device, the second parameter may include a resource that the second terminal device sends the second data (hereinafter referred to as a third resource), and the resource may include the time domain and/or Or frequency domain resources. For example, the second parameter may include the number of the first subchannel or PRB where the PSSCH carrying the second data is located; or, the second parameter may include the number of the intermediate subchannel or PRB where the PSSCH is located; or the second parameter may It includes the number of the last subchannel or PRB where the PSSCH is located; or the second parameter may include the number of the subchannel or PRB where the PSSCH is located or indicated by signaling.

当第一终端设备从第二终端设备接收第二控制信息时，第二参数可包括第二终端设备发送第二控制信息的资源(以下称为第四资源，第三资源可包括第四资源)，该资源可包括时域和/或频域资源。如，第二参数可包括承载第二控制信息的PSCCH所在的第一个子信道或者PRB的编号；或者，第二参数可包括该PSCCH所在的中间的子信道或者PRB的编号，或者第二参数可包括该PSCCH所在的最后一个的子信道或者PRB的编号；或者第二参数可包括通过信令配置或指示的该PSCCH所在子信道或者PRB的编号。另外，若第二控制信息为SFCI，第二参数还可包括承载该SFCI的PSFCH所在的第一个子信道或者PRB的编号，或者，第二参数可包括该PSFCH所在的中间的子信道或者PRB的编号，或者第二参数可包括该PSFCH所在的最后一个的子信道或者PRB的编号。When the first terminal device receives the second control information from the second terminal device, the second parameter may include a resource that the second terminal device sends the second control information (hereinafter referred to as a fourth resource, and the third resource may include the fourth resource) , The resource may include time domain and/or frequency domain resources. For example, the second parameter may include the number of the first subchannel or PRB where the PSCCH carrying the second control information is located; or, the second parameter may include the number of the intermediate subchannel or PRB where the PSCCH is located, or the second parameter It may include the number of the last subchannel or PRB where the PSCCH is located; or the second parameter may include the number of the subchannel or PRB where the PSCCH is located or indicated by signaling. In addition, if the second control information is SFCI, the second parameter may further include the number of the first subchannel or PRB where the PSFCH carrying the SFCI is located, or the second parameter may include the intermediate subchannel or PRB where the PSFCH is located Or the second parameter may include the number of the last subchannel or PRB where the PSFCH is located.

采用以上设计，第一终端设备可根据第二终端设备向第一终端设备发送第二数据或第二控制信息时的传输参数确定参考信号的序列，可减轻根据该序列生成的参考信号与其他通信装置发送的参考信号之间产生干扰。With the above design, the first terminal device can determine the sequence of the reference signal according to the transmission parameter when the second terminal device sends the second data or the second control information to the first terminal device, which can reduce the reference signal generated according to the sequence and other communications Interference occurs between the reference signals sent by the device.

此外，第二参数还可包括以上第二控制信息中的某个字段的指示信息或取值。例如，第二控制信息为SCI，该字段可以是SCI指示的MCS字段、资源分配字段或者时域位置字段，从而第一终端设备和/或第二终端设备可将SCI中MCS字段的取值、资源分配字段的取值或者时域位置字段的取值作为第二参数。In addition, the second parameter may further include indication information or a value of a certain field in the above second control information. For example, the second control information is SCI, and this field may be an MCS field, a resource allocation field, or a time domain location field indicated by the SCI, so that the first terminal device and/or the second terminal device can take the value of the MCS field in the SCI, The value of the resource allocation field or the value of the time domain position field is used as the second parameter.

另外，第二参数还可包括地理位置信息、接收自网络设备的用于sidelink链路的DCI中的指示信息、用于进行单播的侧行链路HARQ的标识、用于进行组播的侧行链路HARQ的标识、用于指示当前是否重传的信息、用于指示当前传输的传输次数的信息、当前使用的资源区域标识(ZoneID)、传输参考信号的子载波间隔、传输方式信息中的部分或全部信息。从而，可进一步区分根据以上第二参数生成的参考信号与其他参考信号，降低参考信号之间的干扰。In addition, the second parameter may also include geographic location information, indication information received from the network device for the DCI of the sidelink link, the identification of the HARQ of the sidelink for unicast, and the side for multicast The identifier of the downlink HARQ, the information used to indicate whether to retransmit currently, the information used to indicate the number of transmissions of the current transmission, the currently used resource zone identifier (ZoneID), the subcarrier interval for transmitting the reference signal, and the transmission mode information Part or all of the information. Therefore, the reference signal generated according to the above second parameter can be further distinguished from other reference signals, and the interference between the reference signals can be reduced.

可选地，上述地理位置信息可以包括第一终端设备和/或第二终端设备的GNSS坐标，或基于GNSS标准确定的位置信息。Optionally, the above geographic location information may include GNSS coordinates of the first terminal device and/or the second terminal device, or location information determined based on GNSS standards.

可选地，上述第一终端设备和/或第二终端设备接收自网络设备的用于sidelink链路的DCI中的指示信息，可以包括直接用DCI来指示的第二参数值。或者是通过DCI中的其它字段，如MCS字段、资源分配字段或者时域位置字段，从而第一终端设备和/或第二终端设备可将SCI中MCS字段的取值、资源分配字段的取值或者时域位置字段的取值作为第二参数。Optionally, the indication information in the DCI for the sidelink link received from the network device by the first terminal device and/or the second terminal device may include a second parameter value directly indicated by DCI. Or through other fields in the DCI, such as the MCS field, the resource allocation field or the time domain location field, so that the first terminal device and/or the second terminal device can use the values of the MCS field and the resource allocation field in the SCI Or the value of the time domain position field is used as the second parameter.

可选地，上述用于指示当前是否重传的信息，是用来指示第一终端设备和/或第二终端设备的传输是进行重传还是不进行重传。Optionally, the above information for indicating whether to retransmit is currently used to indicate whether the transmission of the first terminal device and/or the second terminal device is to be retransmitted or not.

可选地，上述用于指示当前传输的传输次数的信息，可包括进行一次传输时的传输次数，如1次、2次、4等。Optionally, the above information for indicating the number of transmissions of the current transmission may include the number of transmissions when one transmission is performed, such as 1, 2, 4 and so on.

可选地，上述当前使用的资源区域标识，可以是网络配置的，也可以是基于第一终端设备和/或第二终端设备的GNSS坐标计算得到的。Optionally, the currently used resource area identifier may be configured by the network, or may be calculated based on the GNSS coordinates of the first terminal device and/or the second terminal device.

可选地，上述传输参考信号的子载波间隔，子载波间隔可以是15kHz、30kHz、60kHz、120kHz等。Optionally, the subcarrier spacing for transmitting the reference signal described above may be 15 kHz, 30 kHz, 60 kHz, 120 kHz, etc.

可选地，上述传输方式信息可包括单播、多播或广播等的任意一种。Optionally, the above transmission mode information may include any one of unicast, multicast, or broadcast.

在使用上述的信息时，可以是使用指示这些信息的全部字段或完整的值，也可以是指示这些信息的部分的字段或部分的值。本发明对此不做限定。When using the above-mentioned information, all fields or complete values indicating the information may be used, or a field or partial value indicating a part of the information may be used. The invention does not limit this.

在本申请实施例中，如图3所示方法所涉及的参考信号，还可用于使用反馈信道来承载反馈信息，反馈信息可以是用参考信号的序列来承载的，也可以是用反馈信道中的控制信息编码比特来承载的。反馈信道可承载反馈信息的RS或DM-RS。参考信号还可包括数据信道物理sidelink共享信道(pysical sidelink share channel，PSSCH)使用的DM-RS、物理sidelink控制信道(pysical sidelink control channel，PSCCH)使用的DM-RS、用于做信道状态信息(channel state information，CSI)测量或无线资源管理(radio resource management，RRM)测量或无线链路跟踪(radio link monitoring，RLM)测量的RS，如探测参考信号(sounding reference signal，SRS)、PT-RS、无线链路跟踪参考信号RLM-RS或CSI-RS，或者用于做同步的控制信道，如物理边链路广播信道(physical sidelink broadcast channel，PSBCH)。上述或不限于上述类型的RS，并不对本发明的方案够成限制。In the embodiment of the present application, the reference signal involved in the method shown in FIG. 3 may also be used to carry feedback information using a feedback channel, and the feedback information may be carried using a sequence of reference signals, or may be carried in a feedback channel. The control information is encoded bits to carry. The feedback channel may carry RS or DM-RS of feedback information. The reference signal can also include the DM-RS used by the data channel physical sidelink shared channel (pysical sidelink shared channel, PSSCH), the DM-RS used by the physical sidelink control channel (pysical sidelink control channel, PSCCH), and used for channel status information ( RS for channel state information (CSI) measurement or radio resource management (RRM) measurement or radio link tracking (RLM) measurement, such as sounding reference signal (SRS), PT-RS , Radio link tracking reference signal RLM-RS or CSI-RS, or a control channel used for synchronization, such as a physical sidelink broadcast channel (physical sidelink broadcast channel, PSBCH). The above-mentioned or not limited to the above-mentioned types of RS does not limit the solution of the present invention.

另外在实施中，本申请所述参考信号可替换为加扰序列。具体的，第一终端设备可根据第一参数确定加扰序列，并将该加扰序列发送至第二终端设备。第一终端设备在传输数据或控制信息时，可以使用该加扰序列对待传输的数据或控制信息进行加扰处理，数据或控制信息的接收端装置，可根据该加扰序列解扰获得数据或控制信息。具体的，第一终端设备可按以下方法对待传输的数据或控制信息的比特进行加扰：In addition, in implementation, the reference signal described in this application may be replaced with a scrambling sequence. Specifically, the first terminal device may determine the scrambling sequence according to the first parameter, and send the scrambling sequence to the second terminal device. When transmitting data or control information, the first terminal device may use the scrambling sequence to perform scrambling processing on the data or control information to be transmitted, and the receiving end device of the data or control information may obtain the data or descrambling according to the scrambling sequence. Control information. Specifically, the first terminal device may scramble the bits of the data or control information to be transmitted as follows:

其中

是加扰后的比特，b(i)是加扰前的比特，c(i)是根据本申请实施例生成的加扰序列，mod表示取模运算。 among them

Is the bit after scrambling, b(i) is the bit before scrambling, c(i) is the scrambling sequence generated according to the embodiment of the present application, and mod means modulus operation.

据此，本申请实施例提供的另一种方法，可包括以下步骤：Accordingly, another method provided by the embodiments of the present application may include the following steps:

S103：第一终端设备根据第一参数生成加扰序列，该第一参数是根据第二参数确定的，所述第二参数可包括用于标识传输链路的信息和/或传输资源信息，所述加扰序列用于加扰所述第一终端设备中待传输的数据或控制信息；S103: The first terminal device generates a scrambling sequence according to a first parameter. The first parameter is determined according to a second parameter. The second parameter may include information for identifying a transmission link and/or transmission resource information. The scrambling sequence is used to scramble data or control information to be transmitted in the first terminal device;

S104：第一终端设备发送所述加扰序列。在实施中，第一终端设备可向另一个终端设备(如第二终端设备)或网络设备发送该加扰序列，本申请不做具体限定。S104: The first terminal device sends the scrambling sequence. In implementation, the first terminal device may send the scrambling sequence to another terminal device (such as a second terminal device) or a network device, which is not specifically limited in this application.

在一种可能的实现方式中，在S101所示步骤之前，若无线通信系统中包括网络设备，第一终端装置可从网络设备接收该第一参数。该第一参数可以是网络设备根据第二参数确定的，第一终端装置可根据该第一参数生成参考信号的序列，之后根据该序列生成参考信号。另外，第一终端装置也可从网络设备接收该第二参数，之后根据该第二参数生成第一参数，并根据第一参数生成参考信号的序列，之后根据该序列生成参考信号。In a possible implementation manner, before the step shown in S101, if the wireless communication system includes a network device, the first terminal device may receive the first parameter from the network device. The first parameter may be determined by the network device according to the second parameter, and the first terminal device may generate a sequence of reference signals according to the first parameter, and then generate the reference signal according to the sequence. In addition, the first terminal device may also receive the second parameter from the network device, then generate the first parameter according to the second parameter, and generate the sequence of the reference signal according to the first parameter, and then generate the reference signal according to the sequence.

在另外的实现方式中，在S101所示步骤之前，第一终端装置还可从第二终端装置接收该第一参数。该第一参数可以是第二终端装置根据第二参数确定的，第一终端装置可根据该第一参数生成参考信号的序列，之后根据该序列生成参考信号。另外，第一终端装置也可从第二终端装置接收该第二参数，之后根据该第二参数生成第一参数，并根据第一参数生成参考信号的序列，之后根据该序列生成参考信号。In another implementation manner, before the step shown in S101, the first terminal device may also receive the first parameter from the second terminal device. The first parameter may be determined by the second terminal device according to the second parameter, and the first terminal device may generate a sequence of reference signals according to the first parameter, and then generate a reference signal according to the sequence. In addition, the first terminal device may also receive the second parameter from the second terminal device, then generate the first parameter according to the second parameter, and generate the sequence of the reference signal according to the first parameter, and then generate the reference signal according to the sequence.

网络设备可通过DCI、无线资源控制(radio resource control，RRC)信令或者系统信息块(system information blocks，SIB)信令，将第一参数和/或第二参数指示给第一终端设备。具体的，可通过DCI或RRC信令中某个字段的取值，来指示第二参数，其中，DCI或RRC信令可用于指示网络设备为第一终端设备和/或第二终端设备分配的传输资源，该传输资源可用于第一终端设备与第二终端设备传输数据和/或控制信息。The network device may indicate the first parameter and/or the second parameter to the first terminal device through DCI, radio resource control (RRC) signaling or system information blocks (SIB) signaling. Specifically, the second parameter may be indicated by the value of a field in DCI or RRC signaling, where DCI or RRC signaling may be used to indicate the network device allocated to the first terminal device and/or the second terminal device Transmission resources, which can be used by the first terminal device and the second terminal device to transmit data and/or control information.

另外，网络设备还可通过相同的信令将第一参数和/或第二参数指示给第二终端设备。例如，当第一终端设备与第二终端设备进行单播传输，网络设备可向第一终端设备与第二终端设备分别发送DCI，该DCI中可携带第一终端设备与第二终端设备的UE-paired RNTI，此时，该UE-paired RNTI也可作为第二参数；若第一终端设备与包括第二终端设备在内的多个终端设备进行组播传输，网络设备可向第一终端设备与第二终端设备分别发送DCI，该DCI中可携带第一终端设备与该多个终端设备所在的终端设备组的UE-group RNTI，此时，该UE-group RNTI也可作为第二参数。在组播模式下，网络设备也可将DCI发送至一组终端设备中的管理设备(group head)，由管理者设备分发至第一终端设备和/或第二终端设备。In addition, the network device may also indicate the first parameter and/or the second parameter to the second terminal device through the same signaling. For example, when the first terminal device and the second terminal device perform unicast transmission, the network device may separately send DCI to the first terminal device and the second terminal device, and the DCI may carry the UE of the first terminal device and the second terminal device -paired RNTI, at this time, the UE-paired RNTI can also be used as the second parameter; if the first terminal device performs multicast transmission with multiple terminal devices including the second terminal device, the network device can send the first terminal device DCI is separately sent with the second terminal device, and the DCI can carry the UE-group RNTI of the terminal device group where the first terminal device and the multiple terminal devices are located. In this case, the UE-group RNTI can also be used as the second parameter. In the multicast mode, the network device may also send DCI to the management device (group head) in a group of terminal devices, and the manager device distributes it to the first terminal device and/or the second terminal device.

下面，结合附图对本申请提供的参考信号发送方法予以进一步说明。The reference signal transmission method provided by the present application will be further described below with reference to the drawings.

以图1为例，若UE 101以单播模式向UE 102发送数据，网络设备103可分配传输资源，该传输资源用于UE 101向UE 102发送数据，网络设备103可通过DCI指示该传输资源，UE101从网络设备103接收DCI后，可根据该DCI中的UE-paired RNTI、MCS字段的取值、资源分配字段的取值、时域位置字段的取值或其他信息作为第二参数，此后，UE101可根据该第二参数生成参考信号，并将该参考信号发送至UE 102，该参考信号可用于指示UE 101向UE 102发送的数据。Taking FIG. 1 as an example, if the UE 101 sends data to the UE 102 in a unicast mode, the network device 103 may allocate transmission resources, which are used by the UE 101 to send data to the UE 102, and the network device 103 may indicate the transmission resources through DCI After receiving the DCI from the network device 103, the UE 101 may use the value of the UE-paired RNTI in the DCI, the value of the MCS field, the value of the resource allocation field, the value of the time domain location field or other information as the second parameter, and thereafter The UE 101 may generate a reference signal according to the second parameter and send the reference signal to the UE 102. The reference signal may be used to instruct the UE 101 to send data to the UE 102.

另外在上例中，网络设备103还可通过DCI将该传输资源指示给UE 102，UE 102可将该DCI中的UE-paired RNTI、MCS字段的取值、资源分配字段的取值、时域位置字段的取值或其他信息作为第二参数。UE 101还可在根据第二参数生成参考信号后，将第二参数指示给UE 102，例如，UE 101可通过向UE 102发送的SCI中的某个字段的指示信息或取值，向UE 102指示第二参数。从而UE 102可根据UE 101向UE 102发送数据时使用的传输资源信息确定第二参数。In addition, in the above example, the network device 103 can also indicate the transmission resource to the UE 102 through the DCI, and the UE 102 can determine the values of the UE-paired RNTI, MCS field, resource allocation field, and time domain in the DCI The value of the position field or other information is used as the second parameter. The UE 101 may also indicate the second parameter to the UE 102 after generating the reference signal according to the second parameter. For example, the UE 101 may send the UE 102 information to the UE 102 through the indication information or value of a field in the SCI sent to the UE 102 Indicates the second parameter. Therefore, the UE 102 may determine the second parameter according to the transmission resource information used when the UE 101 sends data to the UE 102.

在本申请实施例中，单播模式下，UE 102在确定第二参数后，可根据第二参数确定第一参数，并根据该第一参数检测UE 101发送的参考信号。UE 102还可根据第一参数确定参考信号，该参考信号可用于指示UE 102发送至UE 101的数据；或者，UE 102可根据第二参数确定第一参数，并根据该第一参数向UE 101发送反馈信息。具体的，UE 102可根据本申请提供的参考信号发送方法，根据第二参数确定第一参数，并根据第一参数生成参考信号，该参考信号可用于承载UE 102向UE 101发送的反馈信息，该反馈信息可承载于PSFCH。In the embodiment of the present application, in the unicast mode, after determining the second parameter, the UE 102 may determine the first parameter according to the second parameter, and detect the reference signal sent by the UE 101 according to the first parameter. The UE 102 may also determine a reference signal according to the first parameter, and the reference signal may be used to indicate the data sent by the UE 102 to the UE 101; or, the UE 102 may determine the first parameter according to the second parameter and send the UE 101 according to the first parameter Send feedback. Specifically, the UE 102 may determine the first parameter according to the second parameter according to the reference signal sending method provided in this application, and generate a reference signal according to the first parameter. The reference signal may be used to carry the feedback information sent by the UE 102 to the UE 101. This feedback information can be carried on the PSFCH.

如图4所示，UE 101在以单播方式向UE 102发送参考信号时，本申请实施例提供的参考信号的发送方法可包括以下步骤：As shown in FIG. 4, when the UE 101 sends the reference signal to the UE 102 in a unicast manner, the method for sending the reference signal provided by the embodiment of the present application may include the following steps:

S201：UE 101确定第一参数。S201: UE 101 determines the first parameter.

S202：UE 101根据第一参数生成参考信号。S202: The UE 101 generates a reference signal according to the first parameter.

S203：UE 101以单播方式向UE 102发送该参考信号。S203: The UE 101 sends the reference signal to the UE 102 in a unicast manner.

S204：UE 102根据第一参数，在接收的信号中检测UE 101发送的参考信号。在S204之前，UE 102可根据本申请提供的方法，确定第一参数。S204: The UE 102 detects the reference signal sent by the UE 101 from the received signal according to the first parameter. Before S204, the UE 102 may determine the first parameter according to the method provided in this application.

应理解，在上例中，UE 101还可根据第二参数确定第一参数，并将根据第一参数确定的序列作为加扰序列，该加扰序列可用于对UE 101向UE 102发送的数据进行加扰，UE 101可将该加扰序列发送至UE 102。It should be understood that in the above example, the UE 101 may also determine the first parameter according to the second parameter, and use the sequence determined according to the first parameter as the scrambling sequence. The scrambling sequence may be used for data sent from the UE 101 to the UE 102 For scrambling, UE 101 can send the scrambling sequence to UE 102.

如图5所示，若UE 501以多播模式向UE 502、UE 503以及UE 504发送数据，网络设备可分配传输资源，该传输资源用于UE 501向UE 502、UE 503以及UE 504发送数据，网络设备可在DCI中携带UE 501、UE 502、UE 503以及UE 504所在终端设备组的组标识，网络设备可通过DCI指示该传输资源，UE 501从网络设备接收DCI后，可根据该DCI中的UE-group RNTI、MCS字段的取值、资源分配字段的取值、时域位置字段的取值或其他信息作为第二参数，此后，UE 501可根据该第二参数生成参考信号，并将该参考信号发送至UE 502、UE 503以及UE 504，该参考信号可用于指示UE 501向UE 502、UE 503以及UE 504发送的数据。As shown in FIG. 5, if the UE 501 sends data to the UE 502, UE 503, and UE 504 in a multicast mode, the network device may allocate transmission resources for the UE 501 to send data to the UE 502, UE 503, and UE 504 , The network device can carry the group identifiers of the terminal device groups where UE501, UE502, UE503 and UE504 are located in the DCI. The network device can indicate the transmission resource through the DCI, and the UE501 can receive the DCI from the network device according to the DCI The UE-group RNTI, MCS field value, resource allocation field value, time domain location field value or other information in the second parameter are used as the second parameter. Thereafter, the UE 501 can generate a reference signal according to the second parameter, and The reference signal is sent to the UE 502, UE 503, and UE 504, and the reference signal can be used to instruct the UE 501 to send data to the UE 502, UE 503, and UE 504.

另外在上例中，网络设备还可通过DCI将该传输资源指示给UE 502、UE 503以及UE504，UE 502、UE 503以及UE 504可分别将该DCI中的UE-group RNTI、MCS字段的取值、资源分配字段的取值、时域位置字段的取值或其他信息作为第二参数。In addition, in the above example, the network device can also indicate the transmission resources to the UE 502, UE 503, and UE 504 through DCI. The UE 502, UE 503, and UE 504 can respectively take the UE-group, RNTI, and MCS fields in the DCI. The value, the value of the resource allocation field, the value of the time domain position field, or other information are used as the second parameter.

UE 501还可在根据第二参数生成参考信号后，将第二参数指示给UE 502、UE 503以及UE 504，例如，UE 501可通过SCI中的某个字段的指示信息或取值，向UE 502、UE 503以及UE 504指示第二参数。从而UE 502、UE 503以及UE 504可根据SCI中的某个字段的指示信息或取值确定第二参数。The UE 501 may also indicate the second parameter to the UE 502, UE 503, and UE 504 after generating the reference signal according to the second parameter. For example, the UE 501 may use the indication information or value of a field in the SCI to inform the UE 502, UE503 and UE504 indicate the second parameter. Therefore, the UE 502, the UE 503, and the UE 504 may determine the second parameter according to the indication information or value of a field in the SCI.

在本申请实施例中，多播模式下，UE 502、UE 503以及UE 504在确定第二参数后，可根据第二参数确定第一参数，并根据该第一参数检测UE 501发送的参考信号。In the embodiment of the present application, in the multicast mode, after determining the second parameter, the UE 502, the UE 503, and the UE 504 may determine the first parameter according to the second parameter, and detect the reference signal sent by the UE 501 according to the first parameter .

UE 502、UE 503以及UE 504还可根据该第二参数确定第一参数，并根据第一参数生成参考信号，该参考信号可用于指示UE 502、UE 503以及UE 504各自向UE 501发送的数据；或者，UE 502、UE 503以及UE 504可在确定第二参数后，根据该第二参数确定第一参数，并根据第一参数生成参考信号，该参考信号可用于UE 502、UE 503以及UE 504各自向UE 501发送反馈信息。具体的，UE 502可根据本申请提供的参考信号发送方法，根据第二参数确定第一参数，并根据第一参数生成参考信号，该参考信号可用于承载UE502向UE 501发送的反馈信息，该反馈信息可承载于PSFCH。UE 503也可根据本申请提供的参考信号发送方法，根据第二参数确定第一参数，并根据第一参数生成参考信号，该参考信号可用于承载UE 503向UE 501发送的反馈信息，该反馈信息可承载于PSFCH。UE 504也可根据本申请提供的参考信号发送方法，根据第二参数确定第一参数，并根据第一参数生成参考信号，该参考信号可用于承载UE 504向UE 501发送的反馈信息，该反馈信息可承载于PSFCH。UE502, UE503 and UE504 can also determine the first parameter according to the second parameter, and generate a reference signal according to the first parameter, the reference signal can be used to instruct UE502, UE503 and UE504 to send data to UE501 Or, UE502, UE503, and UE504 can determine the first parameter according to the second parameter after determining the second parameter, and generate a reference signal according to the first parameter. The reference signal can be used for UE502, UE503, and UE. 504 each sends feedback information to the UE 501. Specifically, the UE 502 may determine the first parameter according to the second parameter according to the reference signal sending method provided in this application, and generate a reference signal according to the first parameter. The reference signal may be used to carry the feedback information sent by the UE 502 to the UE 501. The feedback information can be carried on the PSFCH. The UE 503 may also determine the first parameter according to the second parameter according to the reference signal sending method provided in this application, and generate a reference signal according to the first parameter. The reference signal may be used to carry the feedback information sent by the UE 503 to the UE 501. Information can be carried on the PSFCH. The UE 504 may also determine the first parameter according to the second parameter according to the reference signal sending method provided in this application, and generate a reference signal according to the first parameter. The reference signal may be used to carry the feedback information sent by the UE 504 to the UE 501, the feedback Information can be carried on the PSFCH.

如图6所示，以上图5中UE 501在以多播方式向UE 502、UE 503以及UE 504发送参考信号时，本申请实施例提供的参考信号的发送方法可包括以下步骤：As shown in FIG. 6, when the UE 501 in FIG. 5 sends the reference signals to the UE 502, the UE 503, and the UE 504 in a multicast manner, the method for sending reference signals provided by the embodiments of the present application may include the following steps:

S301：UE 501确定第一参数。S301: The UE 501 determines the first parameter.

S302：UE 501根据第一参数生成参考信号。S302: The UE 501 generates a reference signal according to the first parameter.

S303：UE 501以多播方式向UE 502、UE 503以及UE 504发送该参考信号。S303: The UE 501 sends the reference signal to the UE 502, the UE 503, and the UE 504 in a multicast manner.

S304：UE 502、UE 503以及UE 504分别根据第一参数，在接收的信号中检测UE 501发送的参考信号。在S304之前，UE 502、UE 503以及UE 504可分别根据本申请提供的方法，确定第一参数。S304: The UE 502, the UE 503, and the UE 504 respectively detect the reference signal sent by the UE 501 in the received signal according to the first parameter. Before S304, UE502, UE503 and UE504 may determine the first parameter according to the method provided in this application.

可选地，本发明中，可在接收的信号中通过检测UE 501发送的参考信号，获取承载在信号中的反馈信息，或者获取承载在参考信号所对应的数据或控制信道中传输的数据。其中，参考信号所对应的数据或控制信道包括，参考信号为数据或控制信道的解调参考信号；或者参考信号为与数据或控制信道在同一个时隙中同时发送的参考信号。可选地，这些参考信号可以是：CSI-RS，PT-RS，承载反馈或控制信息的RS等。Optionally, in the present invention, the reference signal sent by the UE 501 can be detected in the received signal to obtain the feedback information carried in the signal, or the data corresponding to the reference signal or the data transmitted in the control channel can be obtained. Wherein, the data or control channel corresponding to the reference signal includes: the reference signal is a demodulation reference signal of the data or control channel; or the reference signal is a reference signal transmitted simultaneously in the same time slot as the data or control channel. Optionally, these reference signals may be: CSI-RS, PT-RS, RS carrying feedback or control information, etc.

应理解，在上例中，UE 501还可根据第二参数确定第一参数，并将根据第一参数确定的序列作为加扰序列，该加扰序列可用于对UE 501向UE 502、UE 503以及UE 504发送的数据进行加扰，UE 501可将该加扰序列发送至UE 402、UE 503以及UE 504。It should be understood that in the above example, the UE 501 may also determine the first parameter according to the second parameter, and use the sequence determined according to the first parameter as the scrambling sequence. The scrambling sequence may be used for the UE 501 to the UE 502, UE 503 And the data sent by the UE 504 is scrambled, and the UE 501 can send the scrambling sequence to the UE 402, the UE 503, and the UE 504.

在S102所示步骤的实施中，第一终端设备可在时域上相邻的两个符号上发送所述参考信号。进一步的，第一终端设备可在时域上相邻的两个符号上相同的频域位置发送相同的所述参考信号。还可以是第一终端设备在时域上相邻的两个符号上的不同的频域位置发送相同的所述参考信号。或者，还可以是第一终端设备在时域上相邻的两个符号上的不同的频域位置发送不同的所述参考信号。本申请实施例提供的方法，可用于当所述参考信号与数据不随路发送时，发送的两个带参考信号的符号，可以使接收机用第一个带参考信号的符号来做自动增益控制(auto gain control，AGC)。这样可以保证接收机至少有一个参数信号的符号能够被完整地接收到，从而保证接收性能。In the implementation of the step shown in S102, the first terminal device may send the reference signal on two adjacent symbols in the time domain. Further, the first terminal device may send the same reference signal at the same frequency domain position on two adjacent symbols in the time domain. It may also be that the first terminal device sends the same reference signal at different frequency domain positions on two adjacent symbols in the time domain. Alternatively, the first terminal device may send different reference signals at different frequency domain positions on two adjacent symbols in the time domain. The method provided in the embodiment of the present application can be used to send two symbols with reference signals when the reference signal and data are not transmitted along the way, so that the receiver can use the first symbol with reference signal for automatic gain control (auto gain control, AGC). In this way, it can be ensured that the symbol of at least one parameter signal of the receiver can be completely received, thereby ensuring the reception performance.

下面介绍本申请提供的参考信号发送方法中，第一终端设备和/或第二终端设备确定第一参数的方法。The method for determining the first parameter by the first terminal device and/or the second terminal device in the reference signal transmission method provided by the present application is described below.

本申请实施例中，第一参数可包括序列的根序列号、循环移位值或者序列的正交覆盖编码(orthogonal cover code，OCC)中的至少一个。其中，该序列可以是ZC序列，或者其他长度不大于36的序列。应理解，可以根据上述介绍的一种第二参数或多种第二参数的组合，分别确定每一个第一参数。In the embodiment of the present application, the first parameter may include at least one of a root sequence number of the sequence, a cyclic shift value, or an orthogonal cover code (OCC) of the sequence. Wherein, the sequence may be a ZC sequence, or other sequences whose length is not greater than 36. It should be understood that each first parameter may be determined separately according to the second parameter or a combination of multiple second parameters described above.

具体的，可根据以下公式确定序列的根序列号：Specifically, the root serial number of the sequence can be determined according to the following formula:

u＝f(x)modM。u = f(x) modM.

其中，u为序列的根序列号，f(x)为第二参数的函数，x表示第二参数，mod M表示对M取模，M为正整数。示例性的，M可取该序列的最大根基序列数，如M取该序列的长度。在实施中，x可以是某个第二参数的取值，或者x可以是某个第二参数的取值所对应的数值，可提前预设第二参数的取值与数值之间的映射关系。可选的，x可以为一个或多个参数，当为多个参数时，x可以视为多个参数的变量。Where u is the root serial number of the sequence, f(x) is the function of the second parameter, x represents the second parameter, mod M represents the modulus of M, and M is a positive integer. Exemplarily, M may take the maximum number of root sequences of the sequence, for example, M takes the length of the sequence. In implementation, x may be a value of a second parameter, or x may be a value corresponding to a value of a second parameter, and the mapping relationship between the value of the second parameter and the value may be preset in advance . Optionally, x may be one or more parameters. When there are multiple parameters, x may be regarded as a variable of multiple parameters.

可选地，还可根据以下公式确定序列的根序列号：Optionally, the root serial number of the sequence can also be determined according to the following formula:

u＝(a+f(x))mod M；或u=(a+f(x))mod M; or

u＝(a+b+f(x))mod M。u=(a+b+f(x)) mod M.

其中，u为序列的根序列号，a以及b为整数，f(x)为第二参数的函数，x表示第二参数，mod M表示对M取模，M为正整数。示例性的，M可取该序列的最大根基序列数。Where u is the root serial number of the sequence, a and b are integers, f(x) is the function of the second parameter, x represents the second parameter, mod M represents the modulus of M, and M is a positive integer. Exemplarily, M may take the maximum root sequence number of the sequence.

进一步的，当第二参数仅包括一种类型的参数(如，第二参数仅包括第一资源的信息)，f(x)可表示为：Further, when the second parameter includes only one type of parameter (for example, the second parameter includes only information of the first resource), f(x) may be expressed as:

f(x)＝x；或f(x) = x; or

f(x)＝c*x；或f(x)=c*x; or

f(x)＝c*x+d。f(x)=c*x+d.

其中，f(x)为第二参数的函数，x表示第二参数，c以及d为整数。可选的，x可以为一个或多个参数，当为多个参数时，x可以视为多个参数的变量。Where f(x) is a function of the second parameter, x represents the second parameter, and c and d are integers. Optionally, x may be one or more parameters. When there are multiple parameters, x may be regarded as a variable of multiple parameters.

另外，当第二参数包括多种类型的参数(如，第二参数除包括第一资源的信息还包括第一终端设备与第二终端设备的UE-paired RNTI)，f(x)可表示为：In addition, when the second parameter includes multiple types of parameters (for example, the second parameter includes the UE-paired RNTI of the first terminal device and the second terminal device in addition to the information of the first resource), f(x) can be expressed as :

f(x)＝xi+xj；或f(x)=xi+xj; or

f(x)＝c1*xi+c2*xj；或f(x)=c1*xi+c2*xj; or

f(x)＝c1*xi+d1+c2*xj+d2。f(x)=c1*xi+d1+c2*xj+d2.

其中，f(x)为第二参数的函数，x表示第二参数，xi表示第一类的第二参数，xj表示第二类的第二参数，c1、c2、d1以及d2为整数。可选的，x可以为一个或多个参数，当为多个参数时，x可以视为多个参数的变量。Among them, f(x) is a function of the second parameter, x represents the second parameter, xi represents the second parameter of the first category, xj represents the second parameter of the second category, and c1, c2, d1, and d2 are integers. Optionally, x may be one or more parameters. When there are multiple parameters, x may be regarded as a variable of multiple parameters.

在上述实施方式中，a、b、c、d、c1、c2、d1以及d2的取值可根据小区标识、网络设备配置的替代小区标识、参考信号所在时隙的指示信息、参考信号所在的符号的指示信息、传输参考信号的子载波间隔的指示信息、RNTI中的一种或多种参数确定。一种可行的方式，参数a、b、c、d、c1、c2、d1以及d2，可以在这些参数(如：小区标识、参考信号所在时隙的指示信息、参考信号所在的符号的指示信息、传输参考信号的子载波间隔的指示信息、第一终端设备和/或第二终端设备的RNTI)中取值。可选地，这些参数取值可以相同或不同。In the above embodiments, the values of a, b, c, d, c1, c2, d1, and d2 may be based on the cell ID, the alternative cell ID configured by the network device, the indication information of the time slot where the reference signal is located, and the location where the reference signal is located The indication information of the symbol, the indication information of the subcarrier interval of the transmission reference signal, and one or more parameters in the RNTI are determined. A feasible way, the parameters a, b, c, d, c1, c2, d1 and d2 can be found in these parameters (such as: cell identification, indication information of the time slot where the reference signal is located, and indication information of the symbol where the reference signal is located , The indication information of the subcarrier interval of the transmission reference signal, the value of the RNTI of the first terminal device and/or the second terminal device. Optionally, the values of these parameters may be the same or different.

示例性的，还可根据序列跳和/或序列组跳计算序列的根序列号。Exemplarily, the root sequence number of the sequence may also be calculated according to sequence hops and/or sequence group hops.

u＝(f _gh+f _ss+g ₁(x))mod 30；或 u = (f _gh + f _ss + g ₁ (x)) mod 30; or

u＝(f _gh+g ₁(x))mod 30；或 u=(f _gh +g ₁ (x)) mod 30; or

u＝(f _ss+g ₁(x))mod 30。 u = (f _ss + g ₁ (x)) mod 30.

其中，u为序列的根序列号，f _gh为序列组跳，f _ss为序列跳，g ₁(x)为第二参数的函数，x表示第二参数，mod表示取模运算。 Where u is the root serial number of the sequence, f _gh is the sequence group hop, f _ss is the sequence hop, g ₁ (x) is the function of the second parameter, x represents the second parameter, and mod represents the modulus operation.

在实施中，可根据以下公式确定f _gh以及f _ss： In implementation, f _gh and f _ss can be determined according to the following formula:

f _ss＝(n _ID+g ₃(x))mod 30 f _ss = (n _ID +g ₃ (x)) mod 30

v＝0v=0

其中，n _ID表示网络配置的一个随机化的标识，

表示在特定子载波间隔μ下的一个无线帧中的时隙数，m为整数，为一个中间变量表示，n _hop为指示是否跳频的参数，c()为一个随机序列。g ₂(x)以及g ₃(x)是x的函数，x表示第二参数。 Among them, n _ID represents a randomized identifier of the network configuration,

Represents the number of slots in a radio frame at a specific subcarrier interval μ, m is an integer, which is an intermediate variable, n _hop is a parameter indicating whether to hop frequency, and c() is a random sequence. g ₂ (x) and g ₃ (x) are functions of x, and x represents the second parameter.

或者，可根据以下公式确定f _gh以及f _ss： Alternatively, f _gh and f _ss can be determined according to the following formula:

f _ss＝(n _ID+g ₃(x))mod 30 f _ss = (n _ID +g ₃ (x)) mod 30

v＝0v=0

其中，n _ID表示网络配置的一个随机化的标识，

表示在特定子载波间隔μ下的一个无线帧中的时隙数，m为整数，为一个中间变量表示，n _hop为指示是否跳频的参数，c()为一个随机序列。g ₂(x)以及g ₃(x)是x的函数，x表示第二参数。可选的，x可以为一个或多个参数，当为多个参数时，x可以视为多个参数的变量。 Among them, n _ID represents a randomized identifier of the network configuration,

Represents the number of slots in a radio frame at a specific subcarrier interval μ, m is an integer, which is an intermediate variable, n _hop is a parameter indicating whether to hop frequency, and c() is a random sequence. g ₂ (x) and g ₃ (x) are functions of x, and x represents the second parameter. Optionally, x may be one or more parameters. When there are multiple parameters, x may be regarded as a variable of multiple parameters.

上例中，g ₁(x)、g ₂(x)以及g ₃(x)的设置方式，可参考f(x)的设置方式。其中，g ₁(x)、g ₂(x)以及g ₃(x)可分别表示x的不同的函数。 In the above example, the setting method of g ₁ (x), g ₂ (x) and g ₃ (x) can be referred to the setting method of f(x). Among them, g ₁ (x), g ₂ (x) and g ₃ (x) can respectively represent different functions of x.

可选地，可根据以下公式确定序列的循环移位：Optionally, the cyclic shift of the sequence can be determined according to the following formula:

上例中，h(x)的设置方式可参考f(x)的设置方式。In the above example, the setting method of h(x) can refer to the setting method of f(x).

可选地，可根据以下公式确定序列的正交覆盖码的索引：Optionally, the index of the orthogonal cover code of the sequence can be determined according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

其中，n_occ为所述正交覆盖码的索引，q(x)为所述第二参数的函数，x表示所述第二参数，mod K表示对K取模，K为正整数。示例性的，K可以是OCC序列的数量。在确定n_occ后，可根据正交覆盖码的索引与正交覆盖码的对应表，查询得到正交覆盖码。Where n_occ is the index of the orthogonal cover code, q(x) is a function of the second parameter, x represents the second parameter, mod K represents the modulus of K, and K is a positive integer. Exemplarily, K may be the number of OCC sequences. After determining n_occ, the orthogonal cover code can be queried according to the correspondence table of the index of the orthogonal cover code and the orthogonal cover code.

上例中，q(x)的设置方式可参考f(x)的设置方式。In the above example, the setting method of q(x) can refer to the setting method of f(x).

若参考信号的序列采用随机序列，则该第一参数可包括该序列的序列初始值和/或初始位置。If the sequence of the reference signal uses a random sequence, the first parameter may include the sequence initial value and/or initial position of the sequence.

示例性的，以该随机序列为31比特长度的gold序列为例，可根据以下公式确定序列的序列初始值：Exemplarily, taking the gold sequence whose random sequence is 31 bits in length as an example, the sequence initial value of the sequence can be determined according to the following formula:

c _init＝(2 ^m*N ₁*N ₂+N ₃+f(x))mod(2 ³¹)；或者 c _init = (2 ^m *N ₁ *N ₂ +N ₃ +f(x))mod(2 ³¹ ); or

c _init＝(2 ^m*(N ₁+f(x))*N ₂+N ₃)mod(2 ³¹)；或者 c _init = (2 ^m *(N ₁ +f(x))*N ₂ +N ₃ )mod(2 ³¹ ); or

c _init＝(2 ^m*N ₁*(N ₂+f(x))+N ₃)mod(2 ³¹)。 c _init = (2 ^m *N ₁ *(N ₂ +f(x))+N ₃ )mod(2 ³¹ ).

其中，c _init为所述序列的序列初始值，f(x)为所述第二参数的函数，x表示所述第二参数，mod表示取模运算，m、N ₁、N ₂以及N ₃为预设整数。例如，可以是小区识、基站配置的替代小区标识、参考信号所在的隙的指示信息、参考信号所在的符号的指示信息、传输参考信号的子载波间隔的指示信息、CP类型、RNTI等任意的一种或几种。可选地，这些参数取值可以相同或不同。 Where c _init is the sequence initial value of the sequence, f(x) is the function of the second parameter, x represents the second parameter, mod represents the modulus operation, m, N ₁ , N ₂ and N ₃ It is a preset integer. For example, it may be any of cell identification, alternate cell identification configured by the base station, indication information of the slot where the reference signal is located, indication information of the symbol where the reference signal is located, indication information of the subcarrier interval for transmitting the reference signal, CP type, RNTI, etc. One or more. Optionally, the values of these parameters may be the same or different.

示例性的，可根据以下公式确定序列的初始位置：Exemplarily, the initial position of the sequence can be determined according to the following formula:

Δ＝f(x)。Δ=f(x).

其中，Δ为序列的初始位置，f(x)为所述第二参数的函数，x表示所述第二参数。可选的，x可以为一个或多个参数，当为多个参数时，x可以视为多个参数的变量。f(x)的设置方式，可参照本申请实施例前述介绍。Where Δ is the initial position of the sequence, f(x) is a function of the second parameter, and x represents the second parameter. Optionally, x may be one or more parameters. When there are multiple parameters, x may be regarded as a variable of multiple parameters. For the setting method of f(x), refer to the foregoing introduction of the embodiment of the present application.

在确定Δ后，可根据Δ在随机序列(以下称为原序列)的基础上确定或获取新的随机序列(以下称为待使用序列)，并根据待使用序列生成参考信号，从而进一步提高参考信号的抗干扰能力。After Δ is determined, a new random sequence (hereinafter referred to as the sequence to be used) can be determined or obtained based on the random sequence (hereinafter referred to as the original sequence) according to Δ, and a reference signal can be generated according to the sequence to be used, thereby further improving the reference The anti-interference ability of the signal.

具体的，可根据以下公式确定待使用序列：Specifically, the sequence to be used can be determined according to the following formula:

c(n)＝c0(n+Δ)。c(n)=c0(n+Δ).

其中，c为待使用序列，c0表示原序列，Δ为偏移值f(x)为所述第二参数的函数，x表示所述第二参数，n＝0,1,…,M-1，M为该待使用序列的长度。Where c is the sequence to be used, c0 represents the original sequence, Δ is the offset value f(x) is a function of the second parameter, x represents the second parameter, n=0, 1,..., M-1 , M is the length of the sequence to be used.

上式中，待使用序列以及原序列之间的关系如图7所示，其中Nc表示从原序列中确定待使用序列的初始的偏移量，其中Nc为正整数。可选地，例如，Nc＝1600。In the above formula, the relationship between the sequence to be used and the original sequence is shown in FIG. 7, where Nc represents the initial offset from the original sequence to determine the sequence to be used, where Nc is a positive integer. Alternatively, for example, Nc=1600.

应理解，在根据第二参数确定第一参数后，可根据第一参数生成序列，并根据该序列生成参考信号。本申请对于根据第一参数生成序列以及根据该序列生成参考信号的方式不做具体限定。It should be understood that after determining the first parameter according to the second parameter, a sequence may be generated according to the first parameter, and a reference signal may be generated according to the sequence. The present application does not specifically limit the method for generating a sequence according to the first parameter and the method for generating the reference signal according to the sequence.

基于与以上方法实施例相同的发明构思，本申请实施例还提供了一种通信装置，该通信装置可用于实现上述方法实施例中的由第一终端设备和/或第二终端设备执行的功能。所述功能可以通过硬件实现，也可以通过软件或者硬件执行相应的软件实现。所述硬件或软件可包括一个或多个与上述功能相对应的模块。Based on the same inventive concept as the above method embodiments, embodiments of the present application also provide a communication device, which can be used to implement the functions performed by the first terminal device and/or the second terminal device in the above method embodiments . The above functions can be realized by hardware, and can also be realized by software or hardware executing corresponding software. The hardware or software may include one or more modules corresponding to the above functions.

示例性的，如图8所示，所述通信装置的结构可包括收发器801、存储器802以及处理器803。该收发器801可以用于通信装置进行通信，如用于发送或接收上述参考信号。该存储器802与所述处理器803耦合，其用于保存通信装置必要的程序指令和数据。该处理器803被配置为支持通信装置执行上述第一方面提供的方法中相应的功能，所述功能可通过调用存储器802存储的程序指令实现。具体的，该收发器801可以是无线收发器，可用于支持通信装置通过无限空口进行接收和发送信令、数据。以上收发器801、处理器802以及存储器803之间可通过总线(bus)结构或其他连接介质实现连接。Exemplarily, as shown in FIG. 8, the structure of the communication device may include a transceiver 801, a memory 802 and a processor 803. The transceiver 801 can be used for communication by a communication device, for example, for sending or receiving the above reference signal. The memory 802 is coupled to the processor 803, and is used to store necessary program instructions and data of the communication device. The processor 803 is configured to support the communication device to perform the corresponding function in the method provided in the first aspect above, and the function may be implemented by calling program instructions stored in the memory 802. Specifically, the transceiver 801 may be a wireless transceiver, which may be used to support a communication device to receive and send signaling and data through an infinite air interface. The above transceiver 801, processor 802, and memory 803 may be connected by a bus structure or other connection media.

下面，具体介绍如图8所示的通信装置各组件所具备的功能。The functions of the components of the communication device shown in FIG. 8 are specifically described below.

在实现第一终端设备的功能时，该处理器803可用于根据第一参数生成参考信号，其中，该第一参数用于生成该参考信号的序列，该第一参数可以根据第二参数确定，该第二参数可包括用于标识传输链路的信息和/或传输资源信息。此后，该收发器801可发送该参考信号。When implementing the function of the first terminal device, the processor 803 may be used to generate a reference signal according to a first parameter, where the first parameter is used to generate the sequence of the reference signal, and the first parameter may be determined according to the second parameter, The second parameter may include information for identifying the transmission link and/or transmission resource information. Thereafter, the transceiver 801 may transmit the reference signal.

其中，该收发器801可以从网络设备接收所述第一参数。第一参数可以是网络设备根据第二参数确定的。或者，该收发器801还可以从网络设备接收所述第二参数，该处理器803还可用于根据所述第二参数，确定所述第一参数。Wherein, the transceiver 801 can receive the first parameter from the network device. The first parameter may be determined by the network device according to the second parameter. Alternatively, the transceiver 801 may also receive the second parameter from the network device, and the processor 803 may be further configured to determine the first parameter according to the second parameter.

示例性的，该收发器801还可以向第二终端设备发送第一参数和/或第二参数，以使第二终端设备根据第一参数确定参考信号的序列。Exemplarily, the transceiver 801 may also send the first parameter and/or the second parameter to the second terminal device, so that the second terminal device determines the sequence of the reference signal according to the first parameter.

本申请所涉及的第一参数，可以包括以下中的至少一种：所述序列的根序列号、所述序列的循环移位值、所述序列的正交覆盖码。另外，若序列包括随机序列，该第一参数还可以包括该序列的序列初始值和/或该序列的初始位置。The first parameter involved in the present application may include at least one of the following: the root sequence number of the sequence, the cyclic shift value of the sequence, and the orthogonal cover code of the sequence. In addition, if the sequence includes a random sequence, the first parameter may also include an initial value of the sequence of the sequence and/or an initial position of the sequence.

在实施中，该用于标识传输链路的信息可包括以下信息中的至少一种：第一终端设备的标识；或者，第二终端设备的标识；或者，源标识；或者，目的标识；或者，所述第一终端设备与所述第二终端设备的联合标识；或者，源标识与目的标识的联合标识；或者，网络设备为所述第一终端设备配置的RNTI；或者，网络设备为所述第二终端设备配置的RNTI；或者，网络设备为所述第一终端设备和所述第二终端设备配置的RNTI；或者，HARQ进程号；其中，所述传输链路由于所述第一终端设备与所述第二终端设备之间的传输。In implementation, the information for identifying the transmission link may include at least one of the following information: the identification of the first terminal device; or, the identification of the second terminal device; or, the source identification; or, the destination identification; or , The joint identification of the first terminal device and the second terminal device; or, the joint identification of the source identification and the destination identification; or, the network device is the RNTI configured by the first terminal device; or, the network device is The RNTI configured by the second terminal device; or, the network device is the RNTI configured by the first terminal device and the second terminal device; or, the HARQ process number; wherein, the transmission link is due to the first terminal Transmission between the device and the second terminal device.

该参考信号可以包括以下参考信号中的至少一种：DM-RS、CSI-RS、PT-RS或者RLM-RS。The reference signal may include at least one of the following reference signals: DM-RS, CSI-RS, PT-RS, or RLM-RS.

该传输资源信息可以包括以下信息中的至少一种：第一资源的信息，所述第一资源为所述第一终端设备向第二终端设备发送第一数据的资源；或者，第二资源的信息，所述第二资源为所述第一终端设备向第二终端设备发送第一控制信息的资源；或者，第三资源的信息，所述第三资源为传输第二数据的资源，所述第二数据为所述第一终端设备从第二终端设备接收的数据；或者，第四资源的信息，所述第四资源为传输第二控制信息的资源，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息。The transmission resource information may include at least one of the following information: information of a first resource, where the first resource is a resource that the first terminal device sends first data to a second terminal device; or, the second resource Information, the second resource is a resource that the first terminal device sends first control information to a second terminal device; or, information of a third resource, the third resource is a resource that transmits second data, the The second data is data received by the first terminal device from the second terminal device; or, information of a fourth resource, the fourth resource is a resource that transmits second control information, and the second control information is the Control information received by the first terminal device from the second terminal device.

第二参数还可以包括以下信息中的至少一种：地理位置信息；或者，重传次数；或者，子载波间隔；或者，传输方式，所述传输方式可包括单播、组播或广播；或者，第一控制信息中的特定字段的指示信息，所述第一控制信息为所述第一终端设备向第二终端设备发送的控制信息；或者，第二控制信息中的特定字段的指示信息，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息；或者，接收自网络设备的用于侧行链路的下行控制信息DCI的指示信息。The second parameter may also include at least one of the following information: geographic location information; or, the number of retransmissions; or, the subcarrier interval; or, a transmission method, which may include unicast, multicast, or broadcast; or , Indication information of a specific field in the first control information, the first control information is control information sent by the first terminal device to the second terminal device; or, indication information of a specific field in the second control information, The second control information is control information received by the first terminal device from the second terminal device; or, indication information received from the network device for downlink control information DCI for the side link.

所述参考信号还可以包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示所述第一终端设备发送给第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给第二终端设备的反馈信息。The reference signal may further include at least one of the following reference signals: DM-RS of the first data; or, DM-RS of the first control information; or, RS carrying the first control information ; Wherein the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is sent to the second terminal device by the first terminal device Feedback information.

示例性的，所述第一资源可包括所述第二资源。和/或，所述第三资源可包括所述第四资源。Exemplarily, the first resource may include the second resource. And/or, the third resource may include the fourth resource.

若所述第一参数包括所述序列的根序列号，则该处理器803可以根据以下公式确定所述序列的根序列号：If the first parameter includes the root serial number of the sequence, the processor 803 may determine the root serial number of the sequence according to the following formula:

u＝f(x)mod M；u=f(x)mod M;

若所述第一参数包括所述序列的根序列号，则该处理器803可以根据所述第二参数确定序列跳，根据所述序列跳确定第一参数；和/或，该处理器803可以根据所述第二参数确定序列组跳，根据所述组跳确定第一参数。If the first parameter includes the root serial number of the sequence, the processor 803 may determine a sequence jump according to the second parameter, and determine the first parameter according to the sequence jump; and/or, the processor 803 may The sequence group jump is determined according to the second parameter, and the first parameter is determined according to the group jump.

若所述第一参数包括所述序列的循环移位，则该处理器803可以根据以下公式确定所述序列的循环移位：If the first parameter includes the cyclic shift of the sequence, the processor 803 may determine the cyclic shift of the sequence according to the following formula:

若所述第一参数包括所述序列的正交覆盖码位，则该处理器803可以根据以下公式确定所述序列的正交覆盖码的索引：If the first parameter includes the orthogonal cover code bits of the sequence, the processor 803 may determine the index of the orthogonal cover code of the sequence according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

若所述序列包括随机序列，所述第一参数包括所述序列的序列初始值，则该处理器803可以根据以下公式确定所述序列的序列初始值：If the sequence includes a random sequence and the first parameter includes the sequence initial value of the sequence, the processor 803 may determine the sequence initial value of the sequence according to the following formula:

若所述序列包括随机序列，所述第一参数包括所述序列的初始位置，则该处理器803可以根据以下公式确定所述序列的初始位置：If the sequence includes a random sequence and the first parameter includes the initial position of the sequence, the processor 803 may determine the initial position of the sequence according to the following formula:

Δ＝f(x)；Δ=f(x);

示例性的，该收发器801在发送所述参考信号时，可以在时域上相邻的两个符号上发送所述参考信号。具体的，该收发器801可以在时域上相邻的两个符号上相同的频域位置发送相同的所述参考信号。Exemplarily, when the transceiver 801 sends the reference signal, it may send the reference signal on two adjacent symbols in the time domain. Specifically, the transceiver 801 may send the same reference signal at the same frequency domain position on two adjacent symbols in the time domain.

在实现第一终端设备的功能时，该处理器803可确定第一参数，该第一参数用于生成参考信号的序列，所述第一参数根据第二参数确定，该第二参数可以包括用于标识传输链路的信息和/或传输资源信息。该收发器801还可根据所述第一参数从接收到的信号中检测所述参考信号。When implementing the function of the first terminal device, the processor 803 may determine a first parameter, the first parameter is used to generate a sequence of reference signals, the first parameter is determined according to a second parameter, and the second parameter may include Information identifying transmission links and/or transmission resource information. The transceiver 801 can also detect the reference signal from the received signal according to the first parameter.

其中，该收发器801可以从网络设备和/或第一终端设备接收所述第一参数，所述参考信号为所述第一终端设备发送的。另外，该收发器801还可以从网络设备和/或第一终端设备接收所述第二参数，所述参考信号为所述第一终端设备发送的，此后，所述该处理器可根据所述第二参数，确定所述第一参数。The transceiver 801 may receive the first parameter from a network device and/or a first terminal device, and the reference signal is sent by the first terminal device. In addition, the transceiver 801 may also receive the second parameter from the network device and/or the first terminal device, the reference signal is sent by the first terminal device, and thereafter, the processor may The second parameter determines the first parameter.

该传输资源信息可包括以下信息中的至少一种：第一资源的信息，所述第一资源为所述第一终端设备向第二终端设备发送第一数据的资源；或者，第二资源的信息，所述第二资源为所述第一终端设备向第二终端设备发送第一控制信息的资源；或者，第三资源的信息，所述第三资源为传输第二数据的资源，所述第二数据为所述第一终端设备从第二终端设备接收的数据；或者，第四资源的信息，所述第四资源为传输第二控制信息的资源，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息。其中，所述参考信号为所述第一终端设备发送的。The transmission resource information may include at least one of the following information: information of a first resource, where the first resource is a resource that the first terminal device sends first data to a second terminal device; or, the second resource Information, the second resource is a resource that the first terminal device sends first control information to a second terminal device; or, information of a third resource, the third resource is a resource that transmits second data, the The second data is data received by the first terminal device from the second terminal device; or, information of a fourth resource, the fourth resource is a resource that transmits second control information, and the second control information is the Control information received by the first terminal device from the second terminal device. Wherein, the reference signal is sent by the first terminal device.

第二参数还可以包括以下信息中的至少一种：地理位置信息；或者，重传次数；或者，子载波间隔；或者，传输方式，所述传输方式可包括单播、组播或广播；或者，第一控制信息中的特定字段的指示信息，所述第一控制信息为所述第一终端设备向第二终端设备发送的控制信息；或者，第二控制信息中的特定字段的指示信息，所述第二控制信息为所述第一终端设备从第二终端设备接收的控制信息；或者，接收自网络设备的用于侧行链路的下行控制信息DCI的指示信息。其中，所述参考信号为所述第一终端设备发送的。The second parameter may also include at least one of the following information: geographic location information; or, the number of retransmissions; or, the subcarrier interval; or, a transmission method, which may include unicast, multicast, or broadcast; or , Indication information of a specific field in the first control information, the first control information is control information sent by the first terminal device to the second terminal device; or, indication information of a specific field in the second control information, The second control information is control information received by the first terminal device from the second terminal device; or, indication information received from the network device for downlink control information DCI for the side link. Wherein, the reference signal is sent by the first terminal device.

所述参考信号可包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示所述第一终端设备发送给第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给第二终端设备的反馈信息。The reference signal may include at least one of the following reference signals: DM-RS of the first data; or, DM-RS of the first control information; or, RS carrying the first control information; Wherein, the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is the data sent by the first terminal device to the second terminal device Feedback.

所述参考信号还可以包括以下参考信号中的至少一种：所述第一数据的DM-RS；或者，所述第一控制信息的DM-RS；或者，承载所述第一控制信息的RS；其中，所述第一控制信息用于指示第一终端设备发送给所述第二终端设备的第一数据，或者，所述第一控制信息为所述第一终端设备发送给所述第二终端设备的反馈信息，所述参考信号为所述第一终端设备发送的。The reference signal may further include at least one of the following reference signals: DM-RS of the first data; or, DM-RS of the first control information; or, RS carrying the first control information ; Wherein, the first control information is used to indicate the first data sent by the first terminal device to the second terminal device, or the first control information is sent by the first terminal device to the second For the feedback information of the terminal device, the reference signal is sent by the first terminal device.

若所述第一参数包括所述序列的根序列号，该处理器803可以根据以下公式确定所述序列的根序列号：If the first parameter includes the root serial number of the sequence, the processor 803 may determine the root serial number of the sequence according to the following formula:

u＝f(x)mod M；u=f(x)mod M;

若所述第一参数包括所述序列的根序列号，该处理器803可以根据所述第二参数确定序列跳，根据所述序列跳确定第一参数；和/或，该处理器可以根据所述第二参数确定序列组跳，根据所述组跳确定第一参数。If the first parameter includes the root serial number of the sequence, the processor 803 may determine a sequence jump according to the second parameter, and determine the first parameter according to the sequence jump; and/or, the processor may The second parameter determines a sequence group jump, and the first parameter is determined according to the group jump.

若所述第一参数包括所述序列的循环移位，该处理器803可以根据以下公式确定所述序列的循环移位：If the first parameter includes the cyclic shift of the sequence, the processor 803 may determine the cyclic shift of the sequence according to the following formula:

若所述第一参数包括所述序列的正交覆盖码位，该处理器803可以根据以下公式确定所述序列的正交覆盖码的索引：If the first parameter includes the orthogonal cover code bits of the sequence, the processor 803 may determine the index of the orthogonal cover code of the sequence according to the following formula:

n_occ＝q(x)mod K；n_occ=q(x)mod K;

若所述序列包括随机序列，所述第一参数包括所述序列的序列初始值，该处理器803可以根据以下公式确定所述序列的序列初始值：If the sequence includes a random sequence and the first parameter includes the sequence initial value of the sequence, the processor 803 may determine the sequence initial value of the sequence according to the following formula:

若所述序列包括随机序列，所述第一参数包括所述序列的初始位置，该处理器803可以根据以下公式确定所述序列的初始位置：If the sequence includes a random sequence and the first parameter includes the initial position of the sequence, the processor 803 may determine the initial position of the sequence according to the following formula:

Δ＝f(x)；Δ=f(x);

本申请实施例提供的通信装置还可通过模块化结构实现，如图9所示，本申请实施例提供的一种通信装置的结构中，可包括收发单元901以及处理单元902。The communication device provided by the embodiment of the present application may also be implemented by a modular structure. As shown in FIG. 9, the structure of a communication device provided by the embodiment of the present application may include a transceiver unit 901 and a processing unit 902.

在通过如图9所示结构实现本申请实施例提供的第一终端设备和/或第二终端设备的功能时，收发单元901以及处理单元902各自所执行的步骤，可参照上述对于图8所示通信装置中由收发器801以及处理器803执行的步骤的介绍，在此不再赘述。具体的，收发单元901可用于执行如图8所示通信装置中由收发器801执行的步骤，处理单元902可用于执行如图8所示通信装置中由处理器803执行的步骤。When the functions of the first terminal device and/or the second terminal device provided by the embodiments of the present application are implemented through the structure shown in FIG. 9, the steps performed by the transceiver unit 901 and the processing unit 902 can be referred to the above The description of the steps performed by the transceiver 801 and the processor 803 in the communication device is not repeated here. Specifically, the transceiving unit 901 may be used to perform the steps performed by the transceiver 801 in the communication device shown in FIG. 8, and the processing unit 902 may be used to perform the steps performed by the processor 803 in the communication device shown in FIG. 8.

基于与上述方法实施例相同构思，本申请实施例中还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时，使该计算机执行上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。Based on the same concept as the above method embodiments, an embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the computer is allowed to execute the above method embodiments and method implementations The operation performed by the first terminal device and/or the second terminal device in any possible implementation manner of the example.

基于与上述方法实施例相同构思，本申请还提供一种计算机程序产品，该计算机程序产品在被计算机调用执行时，可以使得计算机实现上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。Based on the same concept as the above method embodiments, the present application also provides a computer program product which, when called and executed by a computer, can cause the computer to implement the above method embodiments and any possible implementation manner of the method embodiments Operations performed by the first terminal device and/or the second terminal device.

基于与上述方法实施例相同构思，本申请还提供一种芯片或芯片系统，该芯片与收发器耦合，用于实现上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。其中，“耦合”是指两个部件彼此直接或间接地结合，这种结合可以是固定的或可移动性的，这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间进行通信。该芯片系统可包括该芯片。Based on the same concept as the above method embodiments, the present application also provides a chip or chip system, the chip is coupled to the transceiver, and is used to implement the above method embodiments, any one of the possible implementation manners of the method embodiments by the first Operations performed by the terminal device and/or the second terminal device. Among them, "coupling" refers to the two components directly or indirectly combined with each other, this combination can be fixed or movable, this combination can allow the flow of liquid, electricity, electrical signals or other types of signals in the two components Communicate between. The chip system may include the chip.

基于与上述方法实施例相同构思，本申请还提供一种通信系统，该通信系统可用于实现上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。示例性的，该通信系统具有如图1和/或图2所示结构。Based on the same concept as the above method embodiments, the present application also provides a communication system, which can be used to implement the above method embodiments and any possible implementation manner of the method embodiments by the first terminal device and/or the first 2. Operations performed by the terminal equipment. Exemplarily, the communication system has the structure shown in FIG. 1 and/or FIG. 2.

本申请实施例是参照实施例所涉及的方法、装置、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。Embodiments of the present application are described with reference to flowcharts and/or block diagrams of the methods, apparatuses, and computer program products involved in the embodiments. It should be understood that each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, dedicated computer, embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device are generated A device for realizing the function specified in one block or multiple blocks of one flow or multiple flows of the flowchart and/or one block or multiple blocks of the block diagram.

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。These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, the instructions The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.

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, so that a series of operating steps are performed on the computer or other programmable device to generate computer-implemented processing, which is executed on the computer or other programmable device The instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.

Claims

A reference signal transmission method, which is characterized by comprising:

The first terminal device generates a reference signal according to a first parameter, where the first parameter is used to generate the sequence of the reference signal, and the first parameter is determined according to a second parameter; the second parameter includes a function to identify the transmission link Information and/or transmission resource information;

The first terminal device sends the reference signal.

The method of claim 1, further comprising:

The first terminal device indicates the first parameter and/or the second parameter to a second terminal device.

The method according to claim 1 or 2, wherein the information for identifying the transmission link includes at least one of the following information:

The identification of the first terminal device; or

The identification of the second terminal device; or

Source identification; or

Identification of purpose; or

The joint identification of the first terminal device and the second terminal device; or

Joint identification of source identification and destination identification; or

The network device temporarily identifies the radio network RNTI configured for the first terminal device; or

The RNTI configured by the network device for the second terminal device; or

The network device is the RNTI configured by the first terminal device and the second terminal device; or

Hybrid automatic retransmission request HARQ process number;

Wherein, the transmission link is due to transmission between the first terminal device and the second terminal device.

The method according to claims 1-3, wherein the reference signal comprises at least one of the following reference signals:

Demodulation reference signal DM-RS; or

Channel state information reference signal CSI-RS; or

Reference signal for carrying control information; or

Phase tracking reference signal PT-RS; or

Synchronization reference signal; or

Radio link tracking reference signal RLM-RS.

The method according to any one of claims 1 to 4, wherein the second parameter includes at least one of the following information:

Geographic location information;

Retransmission times

Subcarrier spacing;

Transmission mode, the transmission mode includes unicast, multicast or broadcast;

Indication information of a specific field in the first control information, where the first control information is control information sent by the first terminal device to a second terminal device;

Indication information of a specific field in the second control information, where the second control information is control information received by the first terminal device from the second terminal device;

Indication information of downlink control information DCI for the side link received from the network device.

The method according to any one of claims 1 to 5, wherein the first parameter includes a root serial number of the sequence, and further includes:

The first terminal device determines the root serial number of the sequence according to the following formula:

u=f(x)mod M;

Where u is the root serial number, f(x) is a function of the second parameter, x represents the second parameter, modM represents modulo M, and M is a positive integer.

The method according to any one of claims 1 to 6, wherein the first parameter includes a cyclic shift of the sequence, and further includes:

The first terminal device determines the cyclic shift of the sequence according to the following formula:

Where α is the cyclic shift, h(x) is a function of the second parameter, x represents the second parameter, modN represents modulo N, and N is the length of the sequence.

The method according to any one of claims 1 to 7, wherein the first parameter includes orthogonal cover code bits of the sequence, and further includes:

The first terminal device determines the index of the orthogonal cover code of the sequence according to the following formula:

n_occ=q(x)modK;

Where n_occ is the index of the orthogonal cover code, q(x) is a function of the second parameter, x represents the second parameter, mod K represents the modulus of K, and K is a positive integer.

The method according to any one of claims 1 to 8, wherein the sequence includes a random sequence, the first parameter includes a sequence initial value of the sequence, and further includes:

The first terminal device determines the sequence initial value of the sequence according to the following formula:

c _init = (2 ^m *N ₁ *N ₂ +N ₃ +f(x))mod(2 ³¹ );

Alternatively, the sequence initial value of the sequence is determined according to the following formula:

c _init = (2 ^m *(N ₁ +f(x))*N ₂ +N ₃ )mod(2 ³¹ );

c _init = (2 ^m *N ₁ *(N ₂ +f(x))+N ₃ )mod(2 ³¹ );

Where c _init is the sequence initial value of the sequence, f(x) is the function of the second parameter, x represents the second parameter, mod represents the modulus operation, m, N ₁ , N ₂ and N ₃ It is a preset integer.

The method according to any one of claims 1 to 9, wherein the sequence includes a random sequence, the first parameter includes an initial position of the sequence, and further includes:

The first terminal device determines the initial position of the sequence according to the following formula:

Δ=f(x);

Where Δ is the initial position, f(x) is a function of the second parameter, and x represents the second parameter.

A reference signal receiving method, characterized in that it includes:

The second terminal device determines a first parameter, which is used to generate a sequence of reference signals, and the first parameter is determined according to the second parameter; the second parameter includes information used to identify the transmission link and/or Transmission of resource information;

The second terminal device detects the reference signal from the received signal according to the first parameter.

The method according to claim 11, wherein the determining of the first parameter by the second terminal device comprises:

The first terminal device receives the first parameter from the first terminal device; or

The first terminal device receives the second parameter from the network device and/or the first terminal device, and determines the first parameter according to the second parameter;

Wherein, the reference signal is sent by the first terminal device.

The method according to claim 11 or 12, wherein the information for identifying the transmission link includes at least one of the following information:

The identification of the first terminal device; or

The identification of the second terminal device; or

Source identification; or

Identification of purpose; or

The RNTI configured by the network device for the first terminal device; or

The RNTI configured by the network device for the second terminal device; or

HARQ process number;

Wherein, the reference signal is sent by the first terminal device, and the transmission link is due to transmission between the first terminal device and the second terminal device.

The method according to any one of claims 11 to 13, wherein the reference signal includes at least one of the following reference signals: a demodulation reference signal DM-RS; or

Channel state information reference signal CSI-RS; or

Reference signal for carrying control information; or

Phase tracking reference signal PT-RS; or

Synchronization reference signal; or

Radio link tracking reference signal RLM-RS.

The method according to any one of claims 11 to 14, wherein the second parameter includes at least one of the following information:

Geographic location information;

Retransmission times

Subcarrier spacing;

Indication information of a specific field in the first control information, where the first control information is control information sent by the first terminal device to the second terminal device;

Instruction information received from the network device for the downlink control information DCI for the side link;

Wherein, the reference signal is sent by the first terminal device.

The method according to any one of claims 11 to 15, wherein the first parameter includes a root serial number of the sequence, and the second terminal device determining the first parameter includes:

The second terminal device determines the root serial number of the sequence according to the following formula:

u=f(x)mod M;

Where u is the root serial number, f(x) is a function of the second parameter, x represents the second parameter, mod M represents modulo M, and M is a positive integer.

The method according to any one of claims 11 to 16, wherein the first parameter includes a cyclic shift of the sequence, and the second terminal device determining the first parameter includes:

The second terminal device determines the cyclic shift of the sequence according to the following formula:

Where α is the cyclic shift, h(x) is a function of the second parameter, x represents the second parameter, mod N represents modulo N, and N is the length of the sequence.

The method according to any one of claims 11 to 17, wherein the first parameter includes orthogonal cover code bits of the sequence, and the second terminal device determining the first parameter includes:

The second terminal device determines the index of the orthogonal cover code of the sequence according to the following formula:

n_occ=q(x)mod K;

The method according to any one of claims 11 to 18, wherein the sequence includes a random sequence, the first parameter includes an initial value of the sequence of the sequence, and the second terminal device determines the first parameter, include:

The second terminal device determines the sequence initial value of the sequence according to the following formula:

c _init = (2 ^m *N ₁ *N ₂ +N ₃ +f(x))mod(2 ³¹ );

c _init = (2 ^m *(N ₁ +f(x))*N ₂ +N ₃ )mod(2 ³¹ );

c _init = (2 ^m *N ₁ *(N ₂ +f(x))+N ₃ )mod(2 ³¹ );

Where cinit is the sequence initial value of the sequence, f(x) is the function of the second parameter, x represents the second parameter, mod represents the modulus operation, m, N ₁ , N ₂ and N ₃ are Preset integer.

The method according to any one of claims 11 to 19, wherein the sequence includes a random sequence, the first parameter includes an initial position of the sequence, the second terminal device determines the first parameter, and include:

The second terminal device determines the initial position of the sequence according to the following formula:

Δ=f(x);

A communication device, characterized in that it includes a transceiver, a memory, and a processor;

The transceiver is used for communication by the communication device;

The memory is used to store computer programs;

The processor is configured to call and execute the computer program from the memory, so that the communication device performs the method according to any one of claims 1 to 10 based on the transceiver, and/or executes the method as claimed The method according to any one of 11 to 20 is required.

A computer-readable storage medium, characterized in that it includes a computer program, when the computer program is called and executed on a computer, it causes the computer to execute the method according to any one of claims 1 to 10, or causes the computer to execute the right The method according to any one of claims 11 to 20 is required.

A computer program product containing instructions, characterized in that, when the computer program product runs on a computer, the computer program product is caused to perform the method of any one of claims 1 to 10, or the computer is executed a claim 11 to 20 The method of any one.

A chip, characterized in that it includes a processor for calling and running a computer program from a memory to perform the method according to any one of claims 1 to 10, and/or performing the method as claimed The method according to any one of 11 to 20.