WO2023083204A1

WO2023083204A1 - Frequency offset compensation method and apparatus

Info

Publication number: WO2023083204A1
Application number: PCT/CN2022/130800
Authority: WO
Inventors: 易雄书
Original assignee: 华为技术有限公司
Priority date: 2021-11-12
Filing date: 2022-11-09
Publication date: 2023-05-19
Also published as: CN116886151A; CN114244418B; CN114244418A

Abstract

The present application provides a frequency offset compensation method and apparatus, being capable of solving the problem that a downlink frequency offset is large, so as to improve the decoding success rate of a downlink signal, and being capable of being applied to a communication system. The method comprises: a terminal device obtains a first frequency offset, wherein the first frequency offset is one of a plurality of candidate frequency offsets that has successfully decoded a synchronization signal and broadcast channel block SSB, the plurality of candidate frequency offsets are determined by the terminal device according to a frequency interval, and the frequency interval between adjacent two frequency offsets in the plurality of candidate frequency offsets is less than a subcarrier spacing; and the terminal device performs frequency offset compensation according to the first frequency offset.

Description

频偏补偿方法及装置Frequency offset compensation method and device

本申请要求于2021年11月12日提交国家知识产权局、申请号为202111340366.X、申请名称为“频偏补偿方法及装置”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 claims the priority of a Chinese patent application with application number 202111340366.X and application title "Frequency Offset Compensation Method and Device" filed with the State Intellectual Property Office on November 12, 2021, the entire contents of which are incorporated herein by reference Applying.

技术领域technical field

本申请涉及通信领域，尤其涉及一种频偏补偿方法及装置。The present application relates to the communication field, and in particular to a frequency offset compensation method and device.

背景技术Background technique

卫星通信是非地面网络(non-terrestrial network，NTN)通信的一种，卫星通信相对于地面网络通信具有覆盖广、不容易受到自然灾害或外力破坏的特点，且可以用于为地面网络不能覆盖的区域提供通信服务。在卫星通信***中，卫星相对地面高速运动，因此，与终端设备之间会产生较大的多普勒频偏。Satellite communication is a kind of non-terrestrial network (NTN) communication. Compared with terrestrial network communication, satellite communication has the characteristics of wide coverage and is not easy to be damaged by natural disasters or external forces, and can be used for ground networks that cannot be covered. The area provides communication services. In the satellite communication system, the satellite moves at a high speed relative to the ground, so there will be a large Doppler frequency deviation between the satellite and the terminal equipment.

目前，可以基于终端设备进行上行频偏补偿。具体地，终端设备可以根据全球导航卫星***(global navigation satellite system，GNSS)以及卫星的星历信息，如卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间等，获取多普勒频偏，进而在发送上行信号的时候，提前根据多普勒频偏进行频偏补偿。Currently, uplink frequency offset compensation can be performed based on terminal equipment. Specifically, the terminal device can use the global navigation satellite system (GNSS) and satellite ephemeris information, such as the satellite's semi-major axis, eccentricity, orbital inclination, ascending node right ascension, perigee argument, mean approach Point angle and reference time, etc., to obtain the Doppler frequency offset, and then perform frequency offset compensation in advance according to the Doppler frequency offset when sending uplink signals.

然而，上述上行频偏补偿方案，只能够对上行信号进行频偏补偿，而下行信号，如同步信号和广播信道块(synchronization signal and physical broadcast channel block，SSB)仍然存在大频偏，从而会导致下行信号的解码成功率低。此外，上述频偏补偿方案中，需要获取GNSS信息，适用性低。However, the above-mentioned uplink frequency offset compensation scheme can only perform frequency offset compensation for uplink signals, while downlink signals, such as synchronization signals and broadcast channel blocks (synchronization signal and physical broadcast channel block, SSB), still have large frequency offsets, which will cause The decoding success rate of the downlink signal is low. In addition, in the above frequency offset compensation scheme, it is necessary to obtain GNSS information, which has low applicability.

发明内容Contents of the invention

本申请实施例提供一种频偏补偿方法及装置，能够解决下行频偏大的问题，从而提高下行信号的解码成功率。Embodiments of the present application provide a frequency offset compensation method and device, which can solve the problem of large downlink frequency offset, thereby improving the decoding success rate of downlink signals.

为达到上述目的，本申请采用如下技术方案：In order to achieve the above object, the application adopts the following technical solutions:

第一方面，提供一种频偏补偿方法。该频偏补偿方法包括：终端设备获取第一频偏。其中，第一频偏为多个候选频偏中，已经成功解码同步信号和广播信道块SSB的候选频偏中的一个。多个候选频偏由终端设备根据频率间隔确定，且多个候选频偏中相邻的两个频偏之间的频率间隔小于子载波间隔。终端设备根据第一频偏进行频偏补偿。In a first aspect, a frequency offset compensation method is provided. The frequency offset compensation method includes: a terminal device acquires a first frequency offset. Wherein, the first frequency offset is one of the candidate frequency offsets that have successfully decoded the synchronization signal and the broadcast channel block SSB among the plurality of candidate frequency offsets. The multiple candidate frequency offsets are determined by the terminal device according to the frequency interval, and the frequency interval between two adjacent frequency offsets among the multiple candidate frequency offsets is smaller than the subcarrier interval. The terminal device performs frequency offset compensation according to the first frequency offset.

基于第一方面所提供的频偏补偿方法，终端设备可以根据频率间隔确定多个候选频偏，并将多个候选频偏中可以成功解码SSB的候选频偏确定为第一频偏，进而根据第一频偏进行频偏补偿，其中，频率间隔小于子载波间隔，如此，可以避免根据子载波间隔扫频，减小扫频的粒度，以提高下行信号的频偏补偿的准确度，进而减小频偏对下行信号的影响，提高下行数据的解码成功率。Based on the frequency offset compensation method provided in the first aspect, the terminal device can determine multiple candidate frequency offsets according to the frequency interval, and determine the candidate frequency offset that can successfully decode the SSB among the multiple candidate frequency offsets as the first frequency offset, and then according to Frequency offset compensation is performed on the first frequency offset, wherein the frequency interval is smaller than the subcarrier interval, so that frequency sweeping according to the subcarrier interval can be avoided, and the granularity of frequency sweep can be reduced to improve the accuracy of frequency offset compensation of the downlink signal, thereby reducing The impact of small frequency offset on the downlink signal improves the decoding success rate of downlink data.

此外，本申请实施例中，可以避免使用终端设备的位置信息来确定第一频偏，从而可以提高适用性。In addition, in the embodiment of the present application, it is possible to avoid using the location information of the terminal device to determine the first frequency offset, thereby improving applicability.

一种可能的设计方案中，终端设备获取第一频偏，可以包括：终端设备根据频率间隔获取多个候选频偏。终端设备根据每个候选频偏各自解码SSB。终端设备将成功解码SSB的候选频偏中的一个确定为第一频偏。In a possible design solution, the acquisition of the first frequency offset by the terminal device may include: the terminal equipment acquires multiple candidate frequency offsets according to frequency intervals. The terminal device decodes the SSB individually according to each candidate frequency offset. The terminal device determines one of the candidate frequency offsets that successfully decodes the SSB as the first frequency offset.

可选地，终端设备将成功解码SSB的候选频偏中的一个确定为第一频偏，可以包括：终端设备将成功解码的SSB中，信号质量最好的SSB对应的候选频偏确定为第一频偏。其中，第一频偏为频率间隔的整数倍，即粗频偏。如此，将信号质量最好的SSB对应的候选频偏确定为第一频偏，可以减小干扰信号的影响，获得更为准确的第一频偏，从而进一步提高下行信号的解码成功率。Optionally, the terminal device determining one of the candidate frequency offsets of the successfully decoded SSBs as the first frequency offset may include: the terminal device determining the candidate frequency offset corresponding to the SSB with the best signal quality among the successfully decoded SSBs as the first frequency offset. A frequency deviation. Wherein, the first frequency offset is an integer multiple of the frequency interval, that is, the coarse frequency offset. In this way, determining the candidate frequency offset corresponding to the SSB with the best signal quality as the first frequency offset can reduce the influence of interference signals and obtain a more accurate first frequency offset, thereby further improving the decoding success rate of downlink signals.

一种可能的设计方案中，第一方面提供的频偏补偿方法还可以包括：终端设备根据SSB对应的参考信号获取第二频偏。其中，第二频偏小于频率间隔，即精细频偏。终端设备根据第一频偏进行频偏补偿，可以包括：终端设备根据第一频偏和第二频偏进行频偏补偿。如此，终端设备可以进行更为精细的频偏补偿，进一步减小下行信号的频偏，从而进一步提高下行信号的解码成功率。In a possible design solution, the frequency offset compensation method provided in the first aspect may further include: the terminal device acquires the second frequency offset according to a reference signal corresponding to the SSB. Wherein, the second frequency offset is smaller than the frequency interval, that is, the fine frequency offset. Performing frequency offset compensation by the terminal device according to the first frequency offset may include: performing frequency offset compensation by the terminal device according to the first frequency offset and the second frequency offset. In this way, the terminal device can perform finer frequency offset compensation to further reduce the frequency offset of the downlink signal, thereby further improving the decoding success rate of the downlink signal.

第二方面，提供一种频偏补偿方法。该频偏补偿方法包括：终端设备获取第三频偏。其中，第三频偏根据第一星历信息和终端设备的位置确定，第一星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。终端设备根据第三频偏进行下行频偏补偿。In a second aspect, a frequency offset compensation method is provided. The frequency offset compensation method includes: a terminal device acquires a third frequency offset. Wherein, the third frequency offset is determined according to the first ephemeris information and the position of the terminal device, and the first ephemeris information includes one or more of the following: semi-major axis of the satellite, eccentricity, orbital inclination, ascending node right ascension, perigee Argument, mean anomaly and reference time. The terminal device performs downlink frequency offset compensation according to the third frequency offset.

基于第二方面提供的频偏补偿方法，终端设备可以根据第一星历信息和终端设备的位置获取第三频偏，进而根据第三频偏进行下行频偏补偿，如此，可以减小频偏对下行信号的影响，例如终端设备可以基于频偏补偿后的频点解码下行信号，从而可以提高下行信号的解码成功率。Based on the frequency offset compensation method provided in the second aspect, the terminal device can obtain the third frequency offset according to the first ephemeris information and the location of the terminal device, and then perform downlink frequency offset compensation according to the third frequency offset, so that the frequency offset can be reduced The impact on the downlink signal, for example, the terminal device can decode the downlink signal based on the frequency point after frequency offset compensation, thereby improving the decoding success rate of the downlink signal.

一种可能的设计方案中，终端设备获取第三频偏，可以包括：终端设备根据第一星历信息和终端设备的位置获取第三频偏。In a possible design solution, the obtaining the third frequency offset by the terminal device may include: the terminal device obtaining the third frequency offset according to the first ephemeris information and the location of the terminal device.

可选地，第二方面提供的频偏补偿方法还可以包括：终端设备根据第三频偏解码SSB。其中，第三频偏为根据第一星历信息和终端设备的位置确定的频偏，即粗频偏。如此，终端设备根据第三频偏对SSB进行频偏补偿，并基于频偏补偿后的SSB解码，可以减小频偏对SSB的影响，从而可以提高SSB的解码成功率。Optionally, the frequency offset compensation method provided in the second aspect may further include: the terminal device decodes the SSB according to the third frequency offset. Wherein, the third frequency offset is a frequency offset determined according to the first ephemeris information and the location of the terminal device, that is, a coarse frequency offset. In this way, the terminal device performs frequency offset compensation on the SSB according to the third frequency offset, and decodes the SSB based on the frequency offset compensation, which can reduce the impact of the frequency offset on the SSB, thereby improving the decoding success rate of the SSB.

进一步地，第二方面提供的频偏补偿方法还可以包括：终端设备根据SSB对应的参考信号获取第四频偏。其中，第四频偏小于第三频偏，即第四频偏为精细频偏。终端设备根据第三频偏进行下行频偏补偿，可以包括：终端设备根据第三频偏和第四频偏进行下行频偏补偿。如此，终端设备可以进行更精细的频偏补偿，进一步减小频偏对下行信号的影响，从而进一步提高下行信号的解码成功率。Further, the frequency offset compensation method provided in the second aspect may further include: the terminal device acquires the fourth frequency offset according to a reference signal corresponding to the SSB. Wherein, the fourth frequency offset is smaller than the third frequency offset, that is, the fourth frequency offset is a fine frequency offset. The terminal device performing downlink frequency offset compensation according to the third frequency offset may include: the terminal device performing downlink frequency offset compensation according to the third frequency offset and the fourth frequency offset. In this way, the terminal device can perform finer frequency offset compensation to further reduce the influence of the frequency offset on the downlink signal, thereby further improving the decoding success rate of the downlink signal.

一种可能的设计方案中，第二方面提供的频偏补偿方法还可以包括：终端设备接收辅***信息。其中，辅***信息中承载有第二星历信息。根据第二星历信息更新第一星历信息。第二星历信息可以包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。如此，终端设备根据接收到的第二星历信息更新第一星历信息，可以在卫星移动的情况下，根据卫星实时的星历信息确定第三频偏，减小卫星位置变化造成的第三频偏的误差，进一步提高频偏补偿的准确度，从而进一步提高下行信号的解码成功率。In a possible design solution, the frequency offset compensation method provided in the second aspect may further include: the terminal device receives secondary system information. Wherein, the auxiliary system information carries the second ephemeris information. The first ephemeris information is updated according to the second ephemeris information. The second ephemeris information may include one or more of the following: semi-major axis of the satellite, eccentricity, orbit inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time. In this way, the terminal device updates the first ephemeris information according to the received second ephemeris information, and can determine the third frequency offset according to the real-time ephemeris information of the satellite when the satellite is moving, reducing the third frequency offset caused by the satellite position change. The error of the frequency offset further improves the accuracy of the frequency offset compensation, thereby further improving the decoding success rate of the downlink signal.

第三方面，提供一种频偏补偿方法。该频偏补偿方法包括：网络设备根据第三星历信息和地理信息获取第五频偏。其中，第三星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。地理信息用于指示网络设备的覆盖区域的位置。网络设备根据第五频偏发送同步信号和下行广播信道块SSB。In a third aspect, a frequency offset compensation method is provided. The frequency offset compensation method includes: the network device acquires the fifth frequency offset according to the third ephemeris information and geographic information. Wherein, the third ephemeris information includes one or more of the following: semi-major axis of the satellite, eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time. Geographical information is used to indicate the location of the coverage area of a network device. The network device sends the synchronization signal and the downlink broadcast channel block SSB according to the fifth frequency offset.

基于第三方面提供的频偏补偿方法，网络设备可以根据第三星历信息和地理信息获取第五频偏，并根据第五频偏发送SSB，如此，可以提前对SSB频偏进行补偿，以减小到达终端设备的SSB的频偏，从而提高SSB的解码成功率。Based on the frequency offset compensation method provided by the third aspect, the network device can obtain the fifth frequency offset according to the third ephemeris information and geographical information, and send the SSB according to the fifth frequency offset. In this way, the SSB frequency offset can be compensated in advance to The frequency offset of the SSB reaching the terminal device is reduced, thereby improving the decoding success rate of the SSB.

一种可能的设计方案中，第三方面提供的频偏补偿方法还可以包括：网络设备根据第五频偏发送辅***信息或下行控制信令。辅***信息用于指示终端设备根据第五频偏进行频偏补偿。第五频偏为根据星历信息和地理信息确定的频偏，即粗频偏，如此，通过辅***信息指示终端设备根据第五频偏进行频偏补偿，可以由每个终端设备各自根据对应的第五频偏对除SSB和辅***信息之外的其他下行信号或下行信道进行粗频偏补偿，可以避免网络设备为不同终端设备发送数据信号时频繁调整晶振的时钟频率，从而减小网络设备的开销，并减少调整晶振的时钟频率的时间，从而提高通信效率。In a possible design solution, the frequency offset compensation method provided in the third aspect may further include: the network device sends secondary system information or downlink control signaling according to the fifth frequency offset. The secondary system information is used to instruct the terminal device to perform frequency offset compensation according to the fifth frequency offset. The fifth frequency offset is the frequency offset determined according to the ephemeris information and geographical information, that is, the coarse frequency offset. In this way, the secondary system information is used to instruct the terminal device to perform frequency offset compensation according to the fifth frequency offset, and each terminal device can use the corresponding The fifth frequency offset compensates for other downlink signals or downlink channels except SSB and auxiliary system information, which can prevent network equipment from frequently adjusting the clock frequency of the crystal oscillator when sending data signals for different terminal equipment, thereby reducing network Equipment overhead, and reduce the time to adjust the clock frequency of the crystal oscillator, thereby improving communication efficiency.

一种可能的设计方案中，第三方面提供的频偏补偿方法还可以包括：网络设备根据第五频偏发送下行信号中，除SSB之外的信号。第五频偏为根据星历信息和地理信息确定的频偏，即粗频偏，如此，由网络设备实现下行数据信号的粗频偏补偿，可以简化终端设备的操作，从而提高终端设备的解码效率。In a possible design solution, the frequency offset compensation method provided in the third aspect may further include: the network device transmits signals other than the SSB in the downlink signal according to the fifth frequency offset. The fifth frequency offset is the frequency offset determined according to the ephemeris information and geographical information, that is, the coarse frequency offset. In this way, the coarse frequency offset compensation of the downlink data signal can be realized by the network equipment, which can simplify the operation of the terminal equipment, thereby improving the decoding of the terminal equipment. efficiency.

第四方面，提供一种频偏补偿方法。该频偏补偿方法包括：网络设备获取时间提前量。其中，时间提前量与网络设备的覆盖区域相关。网络设备发送时间提前量。其中，时间提前量用于覆盖区域内的终端设备向网络设备发送信号。In a fourth aspect, a frequency offset compensation method is provided. The frequency offset compensation method includes: a network device acquires a timing advance. Wherein, the timing advance is related to the coverage area of the network device. Network device sending timing advance. Wherein, the timing advance is used for the terminal equipment in the coverage area to send signals to the network equipment.

基于第四方面提供的频偏补偿方法，网络设备获取时间提前量，并向终端设备发送时间提前量，其中，时间提前量与网络设备的覆盖区域相关。如此，网络设备可以基于网络设备的覆盖区域确定时间提前量，例如，网络设备可以使用覆盖区域内的位置作为终端设备的位置，从而可以避免使用终端设备的GNSS信息来获取频偏，提高适用性。Based on the frequency offset compensation method provided in the fourth aspect, the network device obtains the timing advance and sends the timing advance to the terminal device, where the timing advance is related to the coverage area of the network device. In this way, the network device can determine the timing advance based on the coverage area of the network device. For example, the network device can use the location within the coverage area as the location of the terminal device, thereby avoiding using the GNSS information of the terminal device to obtain the frequency offset and improving applicability .

一种可能的设计方案中，网络设备获取时间提前量，可以包括：网络设备根据网络设备的位置和覆盖区域的位置，获取时间提前量。In a possible design solution, obtaining the timing advance by the network device may include: obtaining the timing advance by the network device according to a location of the network device and a location of a coverage area.

示例性地，网络设备的覆盖区域的位置可以为网络设备覆盖区域的中心位置。或者，网络设备的覆盖区域的位置，可以是覆盖区域内的多个位置。Exemplarily, the location of the coverage area of the network device may be a central location of the coverage area of the network device. Alternatively, the location of the coverage area of the network device may be multiple locations within the coverage area.

一种可能的设计方案中，时间提前量可以承载于如下一项或多项中：辅***信息块、或下行控制信令。如此，终端设备可以在发送上行信号之前接收到时间提前量，并根据时间提前量发送信号，以使信号能够准时到达网络设备，提高接收成功率。In a possible design solution, the timing advance may be carried in one or more of the following: secondary system information block, or downlink control signaling. In this way, the terminal device can receive the timing advance before sending the uplink signal, and send the signal according to the timing advance, so that the signal can reach the network device on time and improve the reception success rate.

第五方面，提供一种频偏补偿方法。该频偏补偿方法包括：终端设备接收时间提前量。其中，时间提前量与网络设备的覆盖区域相关。终端设备根据时间提前量向网络设备发送信号。In a fifth aspect, a frequency offset compensation method is provided. The frequency offset compensation method includes: terminal equipment receiving timing advance. Wherein, the timing advance is related to the coverage area of the network device. End devices send signals to network devices based on the timing advance.

一种可能的设计方案中，时间提前量可以根据网络设备的位置和网络设备的覆盖区域的位置确定。In a possible design solution, the timing advance may be determined according to the location of the network device and the location of the coverage area of the network device.

一种可能的设计方案中，时间提前量可以承载于如下一项或多项中：辅***信息块、或下行控制信令。In a possible design solution, the timing advance may be carried in one or more of the following: secondary system information block, or downlink control signaling.

此外，第五方面所述的频偏补偿方法的技术效果可以参考第四方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effects of the frequency offset compensation method described in the fifth aspect, reference may be made to the technical effects of the frequency offset compensation method described in the fourth aspect, which will not be repeated here.

第六方面，提供一种频偏补偿方法，该频偏补偿方法包括：网络设备获取时间提前量。其中，时间提前量与网络设备的覆盖区域相关。网络设备根据时间提前量接收信号。According to a sixth aspect, a frequency offset compensation method is provided, and the frequency offset compensation method includes: a network device acquires a timing advance. Wherein, the timing advance is related to the coverage area of the network device. Network devices receive signals based on the timing advance.

基于第六方面提供的频偏补偿方法，网络设备获取时间提前量，并根据时间提前量接收来自终端设备的信号，其中，时间提前量与网络设备的覆盖区域相关。如此，网络设备可以基于网络设备的覆盖区域确定时间提前量，例如，网络设备可以使用覆盖区域内的位置作为终端设备的位置，从而可以避免使用终端设备的GNSS信息来获取频偏，提高适用性。Based on the frequency offset compensation method provided in the sixth aspect, the network device acquires a timing advance, and receives a signal from the terminal device according to the timing advance, where the timing advance is related to the coverage area of the network device. In this way, the network device can determine the timing advance based on the coverage area of the network device. For example, the network device can use the location within the coverage area as the location of the terminal device, thereby avoiding using the GNSS information of the terminal device to obtain the frequency offset and improving applicability .

一种可能的设计方案中，网络设备获取时间提前量可以包括：网络设备根据网络设备的位置和网络设备的覆盖区域的位置，获取时间提前量。In a possible design solution, obtaining the timing advance by the network device may include: the network device obtaining the timing advance according to a location of the network device and a location of a coverage area of the network device.

一种可能的设计方案中，网络设备根据时间提前量接收信号，可以包括：网络设备滞后时间提前量接收来自终端设备的信号。如此，网络设备可以在信号到达网络设备时，准时接收信号，从而能够提高接收成功率。In a possible design solution, the receiving the signal by the network device according to the timing advance may include: receiving the signal from the terminal device by the network device lagging behind the timing advance. In this way, the network device can receive the signal on time when the signal arrives at the network device, thereby improving the reception success rate.

第七方面，提供一种频偏补偿装置。该频偏补偿装置包括：获取模块和补偿模块。其中，获取模块，用于获取第一频偏。其中，第一频偏为多个候选频偏中，已经成功解码同步信号和广播信道块SSB的候选频偏中的一个。多个候选频偏由终端设备根据频率间隔确定，且多个候选频偏中相邻的两个频偏之间的频率间隔小于子载波间隔。补偿模块，用于根据第一频偏进行频偏补偿。In a seventh aspect, a frequency offset compensation device is provided. The frequency offset compensation device includes: an acquisition module and a compensation module. Wherein, the acquiring module is configured to acquire the first frequency offset. Wherein, the first frequency offset is one of the candidate frequency offsets that have successfully decoded the synchronization signal and the broadcast channel block SSB among the plurality of candidate frequency offsets. The multiple candidate frequency offsets are determined by the terminal device according to the frequency interval, and the frequency interval between two adjacent frequency offsets among the multiple candidate frequency offsets is smaller than the subcarrier interval. A compensation module, configured to perform frequency offset compensation according to the first frequency offset.

一种可能的设计方案中，获取模块，用于根据频率间隔获取多个候选频偏，并根据每个候选频偏各自解码SSB。获取模块，用于将成功解码SSB的候选频偏中的一个确定为第一频偏。In a possible design solution, the acquiring module is configured to acquire multiple candidate frequency offsets according to frequency intervals, and decode SSBs according to each candidate frequency offset. An acquiring module, configured to determine one of the candidate frequency offsets that successfully decode the SSB as the first frequency offset.

可选地，获取模块，用于将成功解码的SSB中，信号质量最好的SSB对应的候选频偏确定为第一频偏。Optionally, the obtaining module is configured to determine a candidate frequency offset corresponding to the SSB with the best signal quality among the successfully decoded SSBs as the first frequency offset.

一种可能的设计方案中，获取模块，还用于根据SSB对应的参考信号获取第二频偏。其中，第二频偏小于频率间隔。补偿模块，用于根据第一频偏和第二频偏进行频偏补偿。In a possible design solution, the acquiring module is further configured to acquire the second frequency offset according to the reference signal corresponding to the SSB. Wherein, the second frequency offset is smaller than the frequency interval. A compensation module, configured to perform frequency offset compensation according to the first frequency offset and the second frequency offset.

可选地，获取模块和补偿模块可以集成为一个模块，如处理模块。其中，处理模块用于实现该频偏补偿装置的处理功能。Optionally, the acquisition module and the compensation module can be integrated into one module, such as a processing module. Wherein, the processing module is used to realize the processing function of the frequency offset compensation device.

可选地，第七方面所述的频偏补偿装置还可以包括存储模块，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置可以执行第一方面所述的频偏补偿方法。Optionally, the frequency offset compensation device according to the seventh aspect may further include a storage module, where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device can execute the frequency offset compensation method described in the first aspect.

可选地，第七方面所述的频偏补偿装置还可以包括收发模块。其中，收发模块用于实现该频偏补偿装置的发送功能和接收功能。Optionally, the frequency offset compensation device described in the seventh aspect may further include a transceiver module. Wherein, the transceiver module is used to realize the sending function and receiving function of the frequency offset compensation device.

需要说明的是，第七方面所述的频偏补偿装置可以是终端设备，也可以是可设置于终端设备中的芯片(***)或其他部件或组件，还可以是包含终端设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device described in the seventh aspect may be a terminal device, or a chip (system) or other components or components that can be set in the terminal device, or a device that includes the terminal device. Applications are not limited to this.

此外，第七方面所述的频偏补偿装置的技术效果可以参考第一方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation device described in the seventh aspect, reference may be made to the technical effect of the frequency offset compensation method described in the first aspect, which will not be repeated here.

第八方面，提供一种频偏补偿装置。该频偏补偿装置包括：获取模块和补偿模块。获取模块，用于获取第三频偏。其中，第三频偏根据第一星历信息和终端设备的位置确定，第一星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。补偿模块，用于根据第三频偏进行下行频偏补偿。In an eighth aspect, a frequency offset compensation device is provided. The frequency offset compensation device includes: an acquisition module and a compensation module. An obtaining module, configured to obtain a third frequency offset. Wherein, the third frequency offset is determined according to the first ephemeris information and the position of the terminal device, and the first ephemeris information includes one or more of the following: semi-major axis of the satellite, eccentricity, orbital inclination, ascending node right ascension, perigee Argument, mean anomaly and reference time. A compensation module, configured to perform downlink frequency offset compensation according to the third frequency offset.

一种可能的设计方案中，获取模块，用于根据第一星历信息和终端设备的位置获取第三频偏。In a possible design solution, the obtaining module is configured to obtain the third frequency offset according to the first ephemeris information and the location of the terminal device.

可选地，补偿模块，还用于根据第三频偏解码SSB。Optionally, the compensation module is further configured to decode the SSB according to the third frequency offset.

进一步地，获取模块，用于根据SSB对应的参考信号获取第四频偏。其中，第四频偏小于第三频偏。补偿模块，用于根据第三频偏和第四频偏进行下行频偏补偿。Further, the acquiring module is configured to acquire the fourth frequency offset according to the reference signal corresponding to the SSB. Wherein, the fourth frequency offset is smaller than the third frequency offset. A compensation module, configured to perform downlink frequency offset compensation according to the third frequency offset and the fourth frequency offset.

一种可能的设计方案中，获取模块，还用于接收辅***信息。其中，辅***信息中承载有第二星历信息。获取模块，还用于根据第二星历信息更新第一星历信息。第二星历信息可以包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。In a possible design solution, the acquisition module is also used to receive auxiliary system information. Wherein, the auxiliary system information carries the second ephemeris information. The obtaining module is further configured to update the first ephemeris information according to the second ephemeris information. The second ephemeris information may include one or more of the following: semi-major axis of the satellite, eccentricity, orbit inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time.

可选地，第八方面所述的频偏补偿装置还可以包括存储模块，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置可以执行第二方面所述的频偏补偿方法。Optionally, the frequency offset compensation device according to the eighth aspect may further include a storage module, where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device can execute the frequency offset compensation method described in the second aspect.

可选地，第八方面所述的频偏补偿装置还可以包括收发模块。其中，收发模块用于实现该频偏补偿装置的发送功能和接收功能。Optionally, the frequency offset compensation device described in the eighth aspect may further include a transceiver module. Wherein, the transceiver module is used to realize the sending function and receiving function of the frequency offset compensation device.

需要说明的是，第八方面所述的频偏补偿装置可以是终端设备，也可以是可设置于终端设备中的芯片(***)或其他部件或组件，还可以是包含终端设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device described in the eighth aspect may be a terminal device, or a chip (system) or other components or components that can be set in the terminal device, or a device that includes the terminal device. Applications are not limited to this.

此外，第八方面所述的频偏补偿装置的技术效果可以参考第二方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effects of the frequency offset compensation device described in the eighth aspect, reference may be made to the technical effects of the frequency offset compensation method described in the second aspect, which will not be repeated here.

第九方面，提供一种频偏补偿装置，该频偏补偿装置包括：处理模块和收发模块。处理模块，用于根据第三星历信息和地理信息获取第五频偏。其中，第三星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。地理信息用于指示网络设备的覆盖区域的位置。收发模块，用于根据第五频偏发送同步信号和下行广播信道块SSB。According to a ninth aspect, a frequency offset compensation device is provided, and the frequency offset compensation device includes: a processing module and a transceiver module. A processing module, configured to obtain the fifth frequency offset according to the third ephemeris information and geographic information. Wherein, the third ephemeris information includes one or more of the following: semi-major axis of the satellite, eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time. Geographical information is used to indicate the location of the coverage area of a network device. The transceiver module is configured to send the synchronization signal and the downlink broadcast channel block SSB according to the fifth frequency offset.

一种可能的设计方案中，收发模块，还用于根据第五频偏发送辅***信息或下行控制信令。其中，辅***信息用于指示终端设备根据第五频偏进行频偏补偿。In a possible design solution, the transceiver module is further configured to send secondary system information or downlink control signaling according to the fifth frequency offset. Wherein, the secondary system information is used to instruct the terminal device to perform frequency offset compensation according to the fifth frequency offset.

可选地，收发模块，还用于根据第五频偏发送下行信号中，除SSB之外的信号。Optionally, the transceiver module is further configured to send signals other than the SSB in the downlink signal according to the fifth frequency offset.

可选地，收发模块可以包括接收模块和发送模块。其中，收发模块用于实现第九方面所述的频偏补偿装置的发送功能和接收功能。Optionally, the transceiver module may include a receiving module and a sending module. Wherein, the transceiver module is used to realize the sending function and the receiving function of the frequency offset compensation device described in the ninth aspect.

可选地，第九方面所述的频偏补偿装置还可以包括存储模块，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置可以执行第三方面所述的频偏补偿方法。Optionally, the frequency offset compensation device according to the ninth aspect may further include a storage module, where programs or instructions are stored in the storage module. When the processing module executes the program or the instruction, the frequency offset compensation device can execute the frequency offset compensation method described in the third aspect.

需要说明的是，第九方面所述的频偏补偿装置可以是网络设备，也可以是可设置于网络设备中的芯片(***)或其他部件或组件，还可以是包含网络设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device described in the ninth aspect may be a network device, or a chip (system) or other components or components that can be set in the network device, or a device that includes the network device. Applications are not limited to this.

此外，第九方面所述的频偏补偿装置的技术效果可以参考第三方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation device described in the ninth aspect, reference may be made to the technical effect of the frequency offset compensation method described in the third aspect, which will not be repeated here.

第十方面，提供一种频偏补偿装置。该频偏补偿装置包括：处理模块和收发模块。处理模块，用于获取时间提前量。其中，时间提前量与网络设备的覆盖区域相关。收发模块，用于发送时间提前量。其中，时间提前量用于网络设备的覆盖区域内的终端设备向网络设备发送信号。In a tenth aspect, a frequency offset compensation device is provided. The frequency offset compensation device includes: a processing module and a transceiver module. The processing module is used to obtain the time advance. Wherein, the timing advance is related to the coverage area of the network device. The transceiver module is used for sending the timing advance. Wherein, the timing advance is used for the terminal equipment in the coverage area of the network equipment to send signals to the network equipment.

一种可能的设计方案中，处理模块，用于根据网络设备的位置和覆盖区域的位置，获取时间提前量。In a possible design solution, the processing module is configured to acquire the timing advance according to the location of the network device and the location of the coverage area.

一种可能的设计方案中，时间提前量承载于如下一项或多项中：辅***信息块、或下行控制信令。In a possible design solution, the timing advance is carried in one or more of the following: secondary system information block, or downlink control signaling.

可选地，收发模块可以包括接收模块和发送模块。其中，收发模块用于实现第十方面所述的频偏补偿装置的发送功能和接收功能。Optionally, the transceiver module may include a receiving module and a sending module. Wherein, the transceiver module is used to realize the sending function and the receiving function of the frequency offset compensation device described in the tenth aspect.

可选地，第十方面所述的频偏补偿装置还可以包括存储模块，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置可以执行第四方面所述的频偏补偿方法。Optionally, the frequency offset compensation device described in the tenth aspect may further include a storage module, where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device can execute the frequency offset compensation method described in the fourth aspect.

需要说明的是，第十方面所述的频偏补偿装置可以是网络设备，也可以是可设置于网络设备中的芯片(***)或其他部件或组件，还可以是包含网络设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device described in the tenth aspect may be a network device, or a chip (system) or other components or components that can be set in the network device, or a device that includes the network device. Applications are not limited to this.

此外，第十方面所述的频偏补偿装置的技术效果可以参考第四方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effects of the frequency offset compensation device described in the tenth aspect, reference may be made to the technical effects of the frequency offset compensation method described in the fourth aspect, which will not be repeated here.

第十一方面，提供一种频偏补偿装置。该频偏补偿装置包括：接收模块和发送模块。接收模块，用于接收时间提前量。其中，时间提前量与网络设备的覆盖区域相关。发送模块，用于根据时间提前量向网络设备发送信号。In an eleventh aspect, a frequency offset compensation device is provided. The frequency offset compensation device includes: a receiving module and a sending module. The receiving module is used for receiving the timing advance. Wherein, the timing advance is related to the coverage area of the network device. The sending module is configured to send a signal to the network device according to the timing advance.

一种可能的设计方案中，时间提前量根据网络设备的位置和网络设备的覆盖区域的位置确定。In a possible design solution, the timing advance is determined according to the location of the network device and the location of the coverage area of the network device.

可选地，收发模块可以包括接收模块和发送模块。其中，收发模块用于实现第十一方面所述的频偏补偿装置的发送功能和接收功能。Optionally, the transceiver module may include a receiving module and a sending module. Wherein, the transceiver module is used to realize the sending function and the receiving function of the frequency offset compensation device described in the eleventh aspect.

可选地，第十一方面所述的频偏补偿装置还可以包括存储模块，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置可以执行第五方面所述的频偏补偿方法。Optionally, the frequency offset compensation device described in the eleventh aspect may further include a storage module, where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device is enabled to execute the frequency offset compensation method described in the fifth aspect.

需要说明的是，第十一方面所述的频偏补偿装置可以是终端设备，也可以是可设置于终端设备中的芯片(***)或其他部件或组件，还可以是包含终端设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device described in the eleventh aspect may be a terminal device, or a chip (system) or other components or components that can be set in the terminal device, or a device that includes the terminal device, This application does not limit this.

此外，第十一方面所述的频偏补偿装置的技术效果可以参考第五方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation device described in the eleventh aspect, reference may be made to the technical effect of the frequency offset compensation method described in the fifth aspect, which will not be repeated here.

第十二方面，提供一种频偏补偿装置。该频偏补偿装置包括：处理模块和收发模块。其中，处理模块，用于获取时间提前量。其中，时间提前量与网络设备的覆盖区域相关。收发模块，用于根据时间提前量接收信号。In a twelfth aspect, a frequency offset compensation device is provided. The frequency offset compensation device includes: a processing module and a transceiver module. Wherein, the processing module is used to obtain the timing advance. Wherein, the timing advance is related to the coverage area of the network device. The transceiver module is used for receiving signals according to the timing advance.

一种可能的设计方案中，处理模块，用于根据网络设备的位置和网络设备的覆盖区域的位置，获取时间提前量。In a possible design solution, the processing module is configured to acquire the timing advance according to the location of the network device and the location of the coverage area of the network device.

一种可能的设计方案中，收发模块，用于滞后时间提前量接收来自终端设备的信号。In a possible design solution, the transceiver module is configured to receive a signal from a terminal device with a lag time advance.

可选地，收发模块可以包括接收模块和发送模块。其中，收发模块用于实现第十二方面所述的频偏补偿装置的发送功能和接收功能。Optionally, the transceiver module may include a receiving module and a sending module. Wherein, the transceiver module is used to realize the sending function and the receiving function of the frequency offset compensation device described in the twelfth aspect.

可选地，第十二方面所述的频偏补偿装置还可以包括存储模块，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置可以执行第六方面所述的频偏补偿方法。Optionally, the frequency offset compensation device according to the twelfth aspect may further include a storage module, where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device can execute the frequency offset compensation method described in the sixth aspect.

需要说明的是，第十二方面所述的频偏补偿装置可以是网络设备，也可以是可设置于网络设备中的芯片(***)或其他部件或组件，还可以是包含网络设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device described in the twelfth aspect can be a network device, or a chip (system) or other components or components that can be set in the network device, or a device that includes the network device, This application does not limit this.

此外，第十二方面所述的频偏补偿装置的技术效果可以参考第六方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effects of the frequency offset compensation device described in the twelfth aspect, reference may be made to the technical effects of the frequency offset compensation method described in the sixth aspect, which will not be repeated here.

第十三方面，提供一种频偏补偿装置。该频偏补偿装置用于执行第一方面至第六方面中任意一种实现方式所述的频偏补偿方法。In a thirteenth aspect, a frequency offset compensation device is provided. The frequency offset compensation device is configured to implement the frequency offset compensation method described in any one of the implementation manners of the first aspect to the sixth aspect.

在本申请中，第十三方面所述的频偏补偿装置可以为第一方面、第二方面、或第五方面中任一方面所述的终端设备或第三方面、第四方面、或第六方面中任一方面所述的网络设备，或者可设置于该终端设备或网络设备中的芯片(***)或其他部件或组件，或者包含该终端设备或网络设备的装置。In this application, the frequency offset compensation device described in the thirteenth aspect may be the terminal device described in any one of the first aspect, the second aspect, or the fifth aspect, or the third aspect, the fourth aspect, or the first aspect The network device described in any one of the six aspects, or a chip (system) or other components or components that can be set in the terminal device or network device, or a device including the terminal device or network device.

应理解，第十三方面所述的频偏补偿装置包括实现上述第一方面至第六方面中任一方面所述的频偏补偿方法相应的模块、单元、或手段(means)，该模块、单元、或手段可以通过硬件实现，软件实现，或者通过硬件执行相应的软件实现。该硬件或软件包括一个或多个用于执行上述频偏补偿方法所涉及的功能的模块或单元。It should be understood that the frequency offset compensation device described in the thirteenth aspect includes corresponding modules, units, or means (means) for implementing the frequency offset compensation method described in any one of the first to sixth aspects above. The unit or means can be realized by hardware, software, or by executing corresponding software by hardware. The hardware or software includes one or more modules or units for performing the functions involved in the above frequency offset compensation method.

第十四方面，提供一种频偏补偿装置。该频偏补偿装置包括：处理器，该处理器用于执行第一方面至第六方面中任意一种可能的实现方式所述的频偏补偿方法。In a fourteenth aspect, a frequency offset compensation device is provided. The frequency offset compensation apparatus includes: a processor configured to execute the frequency offset compensation method described in any one possible implementation manner of the first aspect to the sixth aspect.

在一种可能的设计方案中，第十四方面所述的频偏补偿装置还可以包括收发器。该收发器可以为收发电路或接口电路。该收发器可以用于第十四方面所述的频偏补偿装置与其他频偏补偿装置通信。In a possible design solution, the frequency offset compensation device according to the fourteenth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for the frequency offset compensation device described in the fourteenth aspect to communicate with other frequency offset compensation devices.

在一种可能的设计方案中，第十四方面所述的频偏补偿装置还可以包括存储器。该存储器可以与处理器集成在一起，也可以分开设置。该存储器可以用于存储第一方面至第六方面中任一方面所述的频偏补偿方法所涉及的计算机程序和/或数据。In a possible design solution, the frequency offset compensation device according to the fourteenth aspect may further include a memory. The memory can be integrated with the processor or set separately. The memory may be used to store computer programs and/or data involved in the frequency offset compensation method described in any one of the first aspect to the sixth aspect.

在本申请中，第十四方面所述的频偏补偿装置可以为第一方面、第二方面、或第五方面中任一方面所述的终端设备或第三方面、第四方面、或第六方面中任一方面所述的网络设备，或者可设置于该终端设备或网络设备中的芯片(***)或其他部件或组件，或者包含该终端设备或网络设备的装置。In this application, the frequency offset compensation device described in the fourteenth aspect may be the terminal device described in any one of the first aspect, the second aspect, or the fifth aspect, or the third aspect, the fourth aspect, or the first aspect The network device described in any one of the six aspects, or a chip (system) or other components or components that can be set in the terminal device or network device, or a device including the terminal device or network device.

第十五方面，提供一种频偏补偿装置。该频偏补偿装置包括：处理器，该处理器与存储器耦合，该处理器用于执行存储器中存储的计算机程序，以使得该频偏补偿装置执行第一方面至第六方面中任意一种可能的实现方式所述的频偏补偿方法。In a fifteenth aspect, a frequency offset compensation device is provided. The frequency offset compensation device includes: a processor, the processor is coupled to a memory, and the processor is used to execute a computer program stored in the memory, so that the frequency offset compensation device performs any one of the possible solutions in the first aspect to the sixth aspect. Implement the frequency offset compensation method described in the manner.

在一种可能的设计方案中，第十五方面所述的频偏补偿装置还可以包括收发器。该收发器可以为收发电路或接口电路。该收发器可以用于第十五方面所述的频偏补偿装置与其他频偏补偿装置通信。In a possible design solution, the frequency offset compensation device described in the fifteenth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for the frequency offset compensation device described in the fifteenth aspect to communicate with other frequency offset compensation devices.

在本申请中，第十五方面所述的频偏补偿装置可以为第一方面、第二方面、或第五方面中任一方面所述的终端设备或第三方面、第四方面、或第六方面中任一方面所述的网络设备，或者可设置于该终端设备或网络设备中的芯片(***)或其他部件或组件，或者包含该终端设备或网络设备的装置。In this application, the frequency offset compensation device described in the fifteenth aspect may be the terminal device described in any one of the first aspect, the second aspect, or the fifth aspect, or the third aspect, the fourth aspect, or the first aspect The network device described in any one of the six aspects, or a chip (system) or other components or components that can be set in the terminal device or network device, or a device including the terminal device or network device.

第十六方面，提供了一种频偏补偿装置，包括：处理器和存储器；该存储器用于存储计算机程序，当该处理器执行该计算机程序时，以使该频偏补偿装置执行第一方面至第六方面中的任意一种实现方式所述的频偏补偿方法。A sixteenth aspect provides a frequency offset compensation device, including: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the frequency offset compensation device executes the first aspect The frequency offset compensation method described in any implementation manner in the sixth aspect.

在一种可能的设计方案中，第十六方面所述的频偏补偿装置还可以包括收发器。该收发器可以为收发电路或接口电路。该收发器可以用于第十六方面所述的频偏补偿装置与其他频偏补偿装置通信。In a possible design solution, the frequency offset compensation device according to the sixteenth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for the frequency offset compensation device described in the sixteenth aspect to communicate with other frequency offset compensation devices.

在本申请中，第十六方面所述的频偏补偿装置可以为第一方面、第二方面、或第五方面中任一方面所述的终端设备或第三方面、第四方面、或第六方面中任一方面所述的网络设备，或者可设置于该终端设备或网络设备中的芯片(***)或其他部件或组件，或者包含该终端设备或网络设备的装置。In this application, the frequency offset compensation device described in the sixteenth aspect may be the terminal device described in any one of the first aspect, the second aspect, or the fifth aspect, or the third aspect, the fourth aspect, or the first aspect The network device described in any one of the six aspects, or a chip (system) or other components or components that can be set in the terminal device or network device, or a device including the terminal device or network device.

第十七方面，提供了一种频偏补偿装置，包括：处理器；所述处理器用于与存储器耦合，并读取存储器中的计算机程序之后，根据该计算机程序执行如第一方面至第六方面中的任意一种实现方式所述的频偏补偿方法。In a seventeenth aspect, there is provided a frequency offset compensation device, including: a processor; the processor is configured to be coupled with a memory, and after reading the computer program in the memory, execute the first to sixth aspects according to the computer program The frequency offset compensation method described in any one of the implementation manners in the aspect.

在一种可能的设计方案中，第十七方面所述的频偏补偿装置还可以包括收发器。该收发器可以为收发电路或接口电路。该收发器可以用于第十七方面所述的频偏补偿装置与其他频偏补偿装置通信。In a possible design solution, the frequency offset compensation device according to the seventeenth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for the frequency offset compensation device described in the seventeenth aspect to communicate with other frequency offset compensation devices.

在本申请中，第十七方面所述的频偏补偿装置可以为第一方面、第二方面、或第五方面中任一方面所述的终端设备或第三方面、第四方面、或第六方面中任一方面所述的网络设备，或者可设置于该终端设备或网络设备中的芯片(***)或其他部件或组件，或者包含该终端设备或网络设备的装置。In this application, the frequency offset compensation device described in the seventeenth aspect may be the terminal device described in any one of the first aspect, the second aspect, or the fifth aspect, or the third aspect, the fourth aspect, or the first aspect The network device described in any one of the six aspects, or a chip (system) or other components or components that can be set in the terminal device or network device, or a device including the terminal device or network device.

此外，上述第十三方面至第十七方面所述的频偏补偿装置的技术效果，可以参考上述第一方面至第六方面所述的频偏补偿方法的技术效果，此处不再赘述。In addition, the technical effects of the frequency offset compensation device described in the above thirteenth aspect to the seventeenth aspect can refer to the technical effects of the frequency offset compensation method described in the above first aspect to the sixth aspect, and will not be repeated here.

第十八方面，提供一种处理器。其中，处理器用于执行第一方面至第六方面中任意一种可能的实现方式所述的频偏补偿方法。In an eighteenth aspect, a processor is provided. Wherein, the processor is configured to execute the frequency offset compensation method described in any one possible implementation manner of the first aspect to the sixth aspect.

第十九方面，提供一种通信***。该通信***包括一个或多个终端设备，以及一个或多个网络设备。In a nineteenth aspect, a communication system is provided. The communication system includes one or more terminal devices, and one or more network devices.

第二十方面，提供一种计算机可读存储介质，包括：计算机程序或指令；当该计算机程序或指令在计算机上运行时，使得该计算机执行第一方面至第六方面中任意一种可能的实现方式所述的频偏补偿方法。In a twentieth aspect, there is provided a computer-readable storage medium, including: a computer program or an instruction; when the computer program or instruction is run on a computer, the computer is made to execute any one of the possible methods in the first aspect to the sixth aspect. Implement the frequency offset compensation method described in the manner.

第二十一方面，提供一种计算机程序产品，包括计算机程序或指令，当该计算机程序或指令在计算机上运行时，使得该计算机执行第一方面至第六方面中任意一种可能的实现方式所述的频偏补偿方法。In a twenty-first aspect, a computer program product is provided, including computer programs or instructions. When the computer program or instructions are run on a computer, the computer executes any one of the possible implementations of the first aspect to the sixth aspect. The frequency offset compensation method described above.

附图说明Description of drawings

图1为本申请实施例提供的频偏与终端设备的仰角的关系示意图；FIG. 1 is a schematic diagram of the relationship between the frequency offset and the elevation angle of the terminal equipment provided by the embodiment of the present application;

图2为本申请实施例提供的通信***的结构示意图；FIG. 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

图3为本申请实施例提供的频偏补偿方法的流程示意图一；FIG. 3 is a first schematic flow diagram of a frequency offset compensation method provided by an embodiment of the present application;

图4为本申请实施例提供的候选频偏的示意图；FIG. 4 is a schematic diagram of candidate frequency offsets provided by an embodiment of the present application;

图5为本申请实施例提供的频偏补偿方法的流程示意图二；FIG. 5 is a second schematic flow diagram of the frequency offset compensation method provided by the embodiment of the present application;

图6为本申请实施例提供的频偏补偿方法的流程示意图三；FIG. 6 is a third schematic flow diagram of the frequency offset compensation method provided by the embodiment of the present application;

图7为本申请实施例提供的网络设备的覆盖区域的位置的示意图；FIG. 7 is a schematic diagram of a location of a coverage area of a network device provided by an embodiment of the present application;

图8为本申请实施例提供的频偏补偿方法的流程示意图四；FIG. 8 is a schematic flowchart 4 of the frequency offset compensation method provided by the embodiment of the present application;

图9为本申请实施例提供的频偏补偿方法的流程示意图五；FIG. 9 is a schematic flowchart five of the frequency offset compensation method provided by the embodiment of the present application;

图10为本申请实施例提供的频偏补偿装置的结构示意图一；FIG. 10 is a first structural schematic diagram of a frequency offset compensation device provided by an embodiment of the present application;

图11为本申请实施例提供的频偏补偿装置的结构示意图二；FIG. 11 is a second structural schematic diagram of a frequency offset compensation device provided by an embodiment of the present application;

图12为本申请实施例提供的频偏补偿装置的结构示意图三；FIG. 12 is a schematic structural diagram III of a frequency offset compensation device provided in an embodiment of the present application;

图13为本申请实施例提供的频偏补偿装置的结构示意图四；FIG. 13 is a schematic diagram 4 of the structure of the frequency offset compensation device provided by the embodiment of the present application;

图14为本申请实施例提供的频偏补偿装置的结构示意图五。FIG. 14 is a fifth structural schematic diagram of a frequency offset compensation device provided by an embodiment of the present application.

具体实施方式Detailed ways

为便于理解，以下首先介绍本申请相关的现有技术。For ease of understanding, the prior art related to the present application is firstly introduced below.

目前的通信***中，终端设备可以根据终端设备的位置信息和星历信息(如卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间)获取频偏和上行时间提前量(timing advance，TA)，进而根据频偏对上行数据进行频偏补偿，和/或，根据时间提前量对传输时延进行补偿。然而，这种方案中，下行频偏较大，下行公共信号，如SSB的解码成功率低下。由于除下行信号之外的信号的解码结果与SSB的解码结果相关，在SSB解码失败的情况下，无法进行SSB之外的其他信号的解码。另外，即使SSB解码成功，但是由于SSB的解码条件较宽松，若根据SSB做频偏估计不够准确，也可能会导致SSB之外的其他信号解码失败。也就是说，除下行信号之外的信号的也存在解码成功率低下的问题。In the current communication system, the terminal equipment can be based on the position information and ephemeris information of the terminal equipment (such as the semi-major axis of the satellite, eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly angle and reference time) Obtain frequency offset and uplink timing advance (timing advance, TA), and then perform frequency offset compensation on uplink data according to frequency offset, and/or compensate transmission delay according to time advance. However, in this solution, the downlink frequency deviation is large, and the decoding success rate of downlink public signals, such as SSB, is low. Since the decoding result of the signal other than the downlink signal is related to the decoding result of the SSB, if the decoding of the SSB fails, the decoding of the signal other than the SSB cannot be performed. In addition, even if the SSB is successfully decoded, since the decoding conditions of the SSB are relatively loose, if the frequency offset estimation based on the SSB is not accurate enough, it may cause the decoding of other signals other than the SSB to fail. That is to say, signals other than downlink signals also have the problem of low decoding success rate.

此外，上述获取频偏的方案中，终端设备的位置信息需要根据GNSS确定，存在适应性低的问题。In addition, in the above-mentioned solution for obtaining frequency offset, the location information of the terminal device needs to be determined according to GNSS, which has the problem of low adaptability.

另外，终端设备需要根据终端设备的位置信息和星历信息获取时间提前量(timing advance，TA)，以提前发送上行信号。获取时间提前量的过程需要依赖全球导航卫星***(global navigation satellite system，GNSS)获取终端设备的位置，适用性低。In addition, the terminal device needs to obtain a timing advance (timing advance, TA) according to the location information and ephemeris information of the terminal device, so as to send the uplink signal in advance. The process of obtaining the timing advance needs to rely on the global navigation satellite system (GNSS) to obtain the position of the terminal device, which has low applicability.

下面首先介绍本申请实施例所涉及的技术术语。The technical terms involved in the embodiments of the present application are firstly introduced below.

1、多普勒频移(doppler shift)，是指当一个设备以一定的速率相对于另一个设备沿某一方向移动时，由于传播路程差的原因，造成的相位和频率的变化。1. Doppler shift (doppler shift) refers to the phase and frequency changes caused by the difference in propagation distance when a device moves in a certain direction relative to another device at a certain rate.

例如，在卫星通信***中，卫星与终端设备之间，会产生多普勒频移，且多普勒频移与终端设备的仰角(elevation degree)和卫星高度相关。在卫星高度确定时，多普勒频移与终端设备的仰角相关。以近地轨道(low earth orbit，LEO)的轨道高度为500千米(kilometer，km)的卫星为例，卫星的飞行速度高达7.6千米每秒(kilometer per second，km/s)。如图1所示，该卫星相对地面静止的终端设备，多普勒频移可以达到500千赫兹(kilohertz，kHz)。随着终端设备的仰角逐渐增大，多普勒频移逐渐减小。其中，终端设备的仰角为终端设备与卫星之间的连线相对于地面的夹角。For example, in a satellite communication system, a Doppler frequency shift will occur between the satellite and the terminal equipment, and the Doppler frequency shift is related to the elevation angle (elevation degree) of the terminal equipment and the satellite height. The Doppler shift is related to the elevation angle of the terminal equipment when the satellite altitude is determined. Taking a satellite in low earth orbit (LEO) with an orbital altitude of 500 kilometers (kilometer, km) as an example, the flying speed of the satellite is as high as 7.6 kilometers per second (kilometer per second, km/s). As shown in FIG. 1 , the Doppler frequency shift of the satellite relative to the ground-stationary terminal equipment can reach 500 kilohertz (kHz). As the elevation angle of the terminal equipment gradually increases, the Doppler shift decreases gradually. Wherein, the elevation angle of the terminal device is an included angle of a connection line between the terminal device and the satellite relative to the ground.

本申请实施例中，多普勒频移也可以称为多普勒频偏，例如，可以简称为频偏，以下实施例中，均以频偏进行说明。In the embodiments of the present application, the Doppler frequency shift may also be referred to as Doppler frequency offset, for example, may be simply referred to as frequency offset. In the following embodiments, frequency offset is used for description.

2、时间提前量(timing advance，TA)，指UE上行信号到达网络设备的过程中，由于距离引起的传输时延。终端设备可以提前TA发送上行信号。例如，若终端设备向网络设备发送上行信号，且希望上行信号在T1时刻到达基站，终端设备与基站之间的传输时延为TA1，则终端设备可以在T1-TA1时刻发送上行信号。2. Timing advance (TA) refers to the transmission delay caused by the distance when the UE uplink signal reaches the network device. The terminal device can send an uplink signal in advance of the TA. For example, if a terminal device sends an uplink signal to a network device and expects the uplink signal to arrive at the base station at time T1, and the transmission delay between the terminal device and the base station is TA1, the terminal device may send the uplink signal at time T1-TA1.

下面将结合附图，对本申请中的技术方案进行描述。The technical solution in this application will be described below with reference to the accompanying drawings.

本申请实施例的技术方案可以应用于各种通信***，例如卫星通信***、车联网通信***、第4代(4th generation，4G)移动通信***，如长期演进(long term evolution，LTE)***、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、第五代(5th generation，5G)移动通信***，如新空口(new radio，NR)***，以及未来的通信***，如第六代(6th generation，6G)移动通信***等。The technical solutions of the embodiments of the present application can be applied to various communication systems, such as satellite communication systems, Internet of Vehicles communication systems, 4th generation (4th generation, 4G) mobile communication systems, such as long term evolution (long term evolution, LTE) systems, Worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5th generation, 5G) mobile communication system, such as new air interface (new radio, NR) system, and future communication systems, such as the sixth Generation (6th generation, 6G) mobile communication systems, etc.

本申请将围绕可包括多个设备、组件、模块等的***来呈现各个方面、实施例或特征。应当理解和明白的是，各个***可以包括另外的设备、组件、模块等，并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外，还可以使用这些方案的组合。The present application presents various aspects, embodiments or features in terms of a system that can include a number of devices, components, modules and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Additionally, combinations of these schemes can also be used.

另外，在本申请实施例中，“示例地”、“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用示例的一词旨在以具体方式呈现概念。In addition, in the embodiments of the present application, words such as "exemplarily" and "for example" are used as examples, illustrations or descriptions. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.

本申请实施例中，“信息(information)”，“信号(signal)”，“消息(message)”，“信道(channel)”、“信令(singaling)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。“的(of)”，“相应的(corresponding，relevant)”和“对应的(corresponding)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。In this embodiment of the application, "information", "signal", "message", "channel", and "signaling" can sometimes be used interchangeably. It should be noted that, When the difference is not emphasized, the meanings they want to express are consistent. "的(of)", "corresponding (corresponding, relevant)" and "corresponding (corresponding)" can sometimes be used interchangeably. It should be pointed out that when the difference is not emphasized, the meanings they intend to express are consistent.

本申请实施例中，有时候下标如W ₁可能会笔误为非下标的形式如W1，在不强调其区别时，其所要表达的含义是一致的。 In the embodiment of the present application, sometimes a subscript such as W ₁ may be a clerical error into a non-subscript form such as W1. When the difference is not emphasized, the meanings they intend to express are consistent.

本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

为便于理解本申请实施例，首先以图2中示出的通信***为例详细说明适用于本申请实施例的通信***。示例性地，图2为本申请实施例提供的频偏补偿方法所适用的一种通信***的架构示意图。如图2所示，该通信***包括至少一个网络设备210(如图2中所示的210a，或者210a和210b)和至少一个终端设备220(如图2中所示的220a或220b)。To facilitate understanding of the embodiment of the present application, first, the communication system shown in FIG. 2 is taken as an example to describe in detail the communication system applicable to the embodiment of the present application. Exemplarily, FIG. 2 is a schematic structural diagram of a communication system to which the frequency offset compensation method provided in the embodiment of the present application is applied. As shown in FIG. 2, the communication system includes at least one network device 210 (210a as shown in FIG. 2, or 210a and 210b) and at least one terminal device 220 (220a or 220b as shown in FIG. 2).

其中，上述网络设备210为位于上述通信***的网络侧，且具有无线收发功能的设备或可设置于该设备的芯片或芯片***。该网络设备包括但不限于：卫星、飞行器或无人空中***(unmanned aerial system，UAS)。或者，该网络设备可以是设置在卫星、飞行器或UAS上，且具有无线收发功能的设备或可设置于该设备的芯片或芯片***。或者，该网络设备可以是演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、基带单元(baseband unit，BBU)，无线中继节点、无线回传节点、传输点(transmission and reception point，TRP或者transmission point，TP)等，还可以为5G，如，新空口(new radio，NR)***中的gNB，或，传输点(TRP或TP)，5G***中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。Wherein, the above-mentioned network device 210 is a device located on the network side of the above-mentioned communication system and having a wireless transceiver function, or a chip or a chip system that can be provided in the device. The network equipment includes, but is not limited to: satellites, aircraft, or unmanned aerial systems (unmanned aerial system, UAS). Alternatively, the network device may be a device that is set on a satellite, an aircraft or a UAS and has a wireless transceiver function, or a chip or a chip system that can be set on the device. Alternatively, the network device may be an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), baseband unit (baseband unit, BBU), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., can also For 5G, e.g., a gNB in a new radio (new radio, NR) system, or, a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, It may also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU).

上述终端设备220为接入上述通信***，且具有无线收发功能的终端或可设置于该终端的芯片或芯片***。该终端设备220也可以称为***接收器、用户装置、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车载终端、具有终端功能的RSU等。本申请的终端设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请提供的频偏补偿方法。The above-mentioned terminal device 220 is a terminal that is connected to the above-mentioned communication system and has a wireless transceiver function, or a chip or a chip system that can be provided in the terminal. The terminal equipment 220 may also be referred to as a satellite television receiver, subscriber device, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, subscriber terminal, terminal, wireless communication device, User Agent or User Device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, vehicle-mounted terminals, RSUs with terminal functions, etc. The terminal device of the present application can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit built into the vehicle as one or more components or units. The on-board component, on-board chip or on-board unit can implement the frequency offset compensation method provided in this application.

图2所示的通信***中，还可以包括连接设备230，如网关(gateway)，其中，网络设备210可以通过无线链路与连接设备230通信，连接设备230可以与核心网240通信。The communication system shown in FIG. 2 may further include a connection device 230 such as a gateway (gateway), wherein the network device 210 may communicate with the connection device 230 through a wireless link, and the connection device 230 may communicate with the core network 240 .

若网络设备210为图2中所示的210a，则210a可以通过服务链路(service link) 与终端设备220通信，且210a可以与通过馈电链路(feeder link)与连接设备230通信。If the network device 210 is 210a shown in FIG. 2, then 210a can communicate with the terminal device 220 through a service link (service link), and 210a can communicate with the connection device 230 through a feeder link (feeder link).

若网络设备210包括图2中所示的210a和210b，则210a可以通过服务链路与终端设备210通信，210a可以通过卫星间链路(inter satellite link，ISL)与210b通信，210b可以通过馈电链路与连接设备230通信。在此情况下，210a可以用于中继信号，210b可以用于对信号进行编解码操作等。例如，210b将需要发送给终端220的第一信号编码后，向210a发送编码后的第一信号，210a向终端设备220发送编码后的第一信号。或者，210a可以接收来自终端设备220的第二信号，并向210b发送第二信号，210b接收到第二信号后，再解码第二信号。If the network device 210 includes 210a and 210b shown in Figure 2, then 210a can communicate with the terminal device 210 through a service link, 210a can communicate with 210b through an inter satellite link (inter satellite link, ISL), and 210b can communicate through a feeder The electrical link communicates with the connection device 230 . In this case, 210a may be used for relaying signals, and 210b may be used for encoding and decoding operations on signals, etc. For example, 210b encodes the first signal to be sent to the terminal 220, and then sends the encoded first signal to 210a, and 210a sends the encoded first signal to the terminal device 220. Alternatively, 210a may receive the second signal from the terminal device 220, and send the second signal to 210b, and 210b decodes the second signal after receiving the second signal.

需要说明的是，本申请实施例提供的频偏补偿方法，可以适用于图2所示的网络设备与终端设备之间，具体实现可以参考下述方法实施例，此处不再赘述。It should be noted that the frequency offset compensation method provided by the embodiment of the present application can be applied between the network device and the terminal device shown in FIG. 2 , and the specific implementation can refer to the following method embodiment, which will not be repeated here.

应当指出的是，本申请实施例中的方案还可以应用于其他通信***中，相应的名称也可以用其他通信***中的对应功能的名称进行替代。It should be noted that the solutions in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced with names of corresponding functions in other communication systems.

应理解，图2为便于理解而示例的简化示意图，该通信***中还可以包括其他网络设备，和/或，其他终端设备，图2中未予以画出。It should be understood that FIG. 2 is a simplified schematic diagram for ease of understanding. The communication system may further include other network devices and/or other terminal devices, which are not shown in FIG. 2 .

下面将结合图3-图9对本申请实施例提供的频偏补偿方法进行具体阐述。The frequency offset compensation method provided by the embodiment of the present application will be described in detail below with reference to FIGS. 3-9 .

示例性地，图3为本申请实施例提供的频偏补偿方法的流程示意图一。该频偏补偿方法可以适用于图1所示的网络设备与终端设备之间的通信。Exemplarily, FIG. 3 is a first schematic flowchart of a frequency offset compensation method provided in an embodiment of the present application. The frequency offset compensation method can be applied to the communication between the network device and the terminal device shown in FIG. 1 .

如图3所示，该频偏补偿方法包括如下步骤：As shown in Figure 3, the frequency offset compensation method includes the following steps:

S301，终端设备获取第一频偏。S301. The terminal device acquires a first frequency offset.

其中，第一频偏为多个候选频偏中，已经成功解码同步信号和广播信道块(synchronization signal and physical broadcast channel block，SSB)的候选频偏中的一个。多个候选频偏由终端设备根据频率间隔确定，且多个候选频偏中相邻的两个频偏之间的频率间隔小于子载波间隔(sub-carrier space，SCS)。Wherein, the first frequency offset is one of candidate frequency offsets that have successfully decoded a synchronization signal and a physical broadcast channel block (SSB) among multiple candidate frequency offsets. The multiple candidate frequency offsets are determined by the terminal device according to the frequency interval, and the frequency interval between two adjacent frequency offsets among the multiple candidate frequency offsets is smaller than a sub-carrier space (sub-carrier space, SCS).

本申请实施例中，频率间隔可以是用于盲检测SSB的两个相邻的频点之间的频率差。需要说明的是，用于盲检测SSB的两个相邻的频点之间不存在其他用于盲检测SSB的频点。例如，用于盲检测SSB的频点包括频点A1至频点A4。其中，频点A1<频点A2<频点A3<频点A4，则频点A1与频点A2为相邻的频点，频点A2与频点A3为相邻的频点，频点A3与频点A4为两个相邻的频点。频率间隔为频点A2与频点A1之间的频率差，或者，频点A3与频点A2之间的频率差，或者频点A4与频点A3之间的频率差。In the embodiment of the present application, the frequency interval may be a frequency difference between two adjacent frequency points used for blind detection of SSB. It should be noted that there is no other frequency point for blind SSB detection between two adjacent frequency points for blind SSB detection. For example, frequency points used for blind detection of SSB include frequency point A1 to frequency point A4. Among them, frequency point A1<frequency point A2<frequency point A3<frequency point A4, then frequency point A1 and frequency point A2 are adjacent frequency points, frequency point A2 and frequency point A3 are adjacent frequency points, and frequency point A3 There are two adjacent frequency points with frequency point A4. The frequency interval is the frequency difference between frequency point A2 and frequency point A1, or the frequency difference between frequency point A3 and frequency point A2, or the frequency difference between frequency point A4 and frequency point A3.

具体地，可以根据以下公式(1)确定频率间隔：Specifically, the frequency interval can be determined according to the following formula (1):

-π≤2πf _d≤π； (1) -π≤2πf _d ≤π; (1)

其中，f _d为多普勒频偏，T表示两个参考信号的OFDM符号之间的距离，即两个完整的广播信道(physical broadcast channel，PBCH)的(orthogonal frequency division multiplexing，OFDM)符号之间的距离，T＝2*Ts，s为OFDM的符号长度。 Wherein, f _d is the Doppler frequency offset, and T represents the distance between OFDM symbols of two reference signals, that is, the distance between two complete physical broadcast channel (physical broadcast channel, PBCH) (orthogonal frequency division multiplexing, OFDM) symbols The distance between T=2*Ts, s is the symbol length of OFDM.

根据上述公式(1)可以获得频率间隔满足以下公式(2)：According to the above formula (1), the frequency interval can be obtained to satisfy the following formula (2):

|f _d|≤1/2*2*T _s； (2) |f _d |≤1/2*2*T _s ; (2)

其中，|f _d|为频率间隔。 where |f _d | is the frequency interval.

例如，若子载波间隔为120kHz，则可以计算出频率间隔≤28kHz，即实际确定的频率间隔小于或等于|f _d|，如可以为25kHz。 For example, if the subcarrier spacing is 120kHz, it can be calculated that the frequency spacing is ≤28kHz, that is, the actually determined frequency spacing is less than or equal to |f _d |, for example, it can be 25kHz.

一种可能的设计方案中，上述S301，终端设备获取第一频偏，可以包括步骤1至步骤3。In a possible design solution, the above S301, the terminal device acquires the first frequency offset, may include steps 1 to 3.

步骤1，终端设备根据频率间隔获取多个候选频偏。 Step 1, the terminal device acquires multiple candidate frequency offsets according to frequency intervals.

示例性地，终端设备在与网络设备建立连接的过程中，如终端设备从没有网络覆盖的区域进入网络设备的覆盖区域内、或者终端设备从关机状态切换至开机的过程中，执行上述步骤1。例如，终端设备在开机后，可以执行上述步骤1。也就是说，终端设备在一次建立连接的过程中，根据频率间隔扫频，进而确定出多个候选频偏。Exemplarily, during the process of establishing a connection between the terminal device and the network device, for example, the terminal device enters the coverage area of the network device from an area without network coverage, or the terminal device switches from the power-off state to the power-on process, perform the above step 1 . For example, after the terminal device is turned on, the above step 1 may be performed. That is to say, in a process of establishing a connection, the terminal device scans frequency according to frequency intervals, and then determines multiple candidate frequency offsets.

示例性地，终端设备可以将不同的频偏系数各自与频率间隔之积确定为一个候选频偏，从而获得多个候选频偏。其中，频偏系数为整数，可以用于指示一个频点相对中心频点的偏离程度。Exemplarily, the terminal device may determine products of different frequency offset coefficients and frequency intervals as one candidate frequency offset, thereby obtaining multiple candidate frequency offsets. Wherein, the frequency offset coefficient is an integer, which can be used to indicate the deviation degree of a frequency point relative to the center frequency point.

例如，若确定的频率间隔为25kHz，且频偏小于500kHz，则多个候选频偏可以为n*25kHz，其中，n为整数，且|n*25kHz|<500kHz。For example, if the determined frequency interval is 25kHz and the frequency offset is less than 500kHz, the multiple candidate frequency offsets may be n*25kHz, where n is an integer, and |n*25kHz|<500kHz.

可理解，上述500kHz，是网络设备为低轨卫星，且该低柜卫星的轨道和速度相对确定的情况下，低轨卫星与终端设备之间的最大可能频偏。500kHz仅用于作示例，对于其他速度、轨道等不同的网络设备，如中轨卫星、高轨卫星或飞行器等而言，网络设备与终端设备之间的最大可能频偏也可能是其他值。It can be understood that the above 500kHz is the maximum possible frequency offset between the low-orbit satellite and the terminal equipment when the network equipment is a low-orbit satellite, and the orbit and speed of the low-orbit satellite are relatively definite. 500kHz is only used as an example. For other network devices with different speeds and orbits, such as medium-orbit satellites, high-orbit satellites, or aircraft, the maximum possible frequency offset between the network device and the terminal device may also be other values.

步骤2，终端设备根据每个候选频偏各自解码SSB。 Step 2, the terminal device decodes the SSB individually according to each candidate frequency offset.

示例性地，终端设备根据最近一次建立连接的过程中，扫频确定的多个候选频偏，各自解码SSB。Exemplarily, the terminal device decodes the SSB respectively according to multiple candidate frequency offsets determined by frequency scanning during the latest connection establishment process.

以图4所示的通信***中的主载波(primary carrier component，PCC)为例，主载波的子载波间隔为120kHz，中心频点为28GHz，若确定的频率间隔为25kHz，多个候选频偏分别为：-3*25kHz、-2*25kHz、-25kHz、0kHz、25kHz、2*25kHz和3*25kHz，则终端设备可以在频点28GHz-3*25kH、28GHz-2*25kHz、28GHz-1*25kHz、28GHz、28GHz+1*25kHz、28GHz+2*25kHz和28GHz+3*25kHz上各自解码SSB。Taking the primary carrier component (PCC) in the communication system shown in Figure 4 as an example, the subcarrier spacing of the primary carrier is 120kHz, and the center frequency point is 28GHz. If the determined frequency spacing is 25kHz, multiple candidate frequency offsets They are: -3*25kHz, -2*25kHz, -25kHz, 0kHz, 25kHz, 2*25kHz and 3*25kHz, then the terminal equipment can operate at frequency points 28GHz-3*25kH, 28GHz-2*25kHz, 28GHz-1 *25kHz, 28GHz, 28GHz+1*25kHz, 28GHz+2*25kHz and 28GHz+3*25kHz respectively decode SSB.

步骤3，终端设备将成功解码SSB的候选频偏中的一个确定为第一频偏。In step 3, the terminal device determines one of the candidate frequency offsets that successfully decodes the SSB as the first frequency offset.

也就是说，成功解码的SSB，是设备最近一次建立连接的过程中，扫频确定的多个候选频偏。以终端设备开机后首次建立连接为例，则成功解码SSB的候选频偏为首次建立连接的扫频过程中，能够成功解码SSB的频点对应的频偏。That is to say, the successfully decoded SSB is a plurality of candidate frequency offsets determined by frequency scanning during the latest connection establishment process of the device. Taking the first connection established after the terminal device is turned on as an example, the candidate frequency offset of successfully decoded SSB is the frequency offset corresponding to the frequency point of SSB that can be successfully decoded during the frequency scanning process for the first connection establishment.

仍然以图4中所示出的频偏为例，若在1*25kHz这个频偏对应的频点上成功解码SSB，则可以确定第一频偏为1*25kHz。Still taking the frequency offset shown in FIG. 4 as an example, if the SSB is successfully decoded at the frequency point corresponding to the frequency offset of 1*25 kHz, it can be determined that the first frequency offset is 1*25 kHz.

另一种可能的设计方案中，终端设备可以逐个确定候选频偏，并在确定出每个候选频偏后，根据该候选频偏尝试解码SSB，然后从SSB解码成功的候选频偏中选择一个作为第一频偏。In another possible design scheme, the terminal device can determine the candidate frequency offsets one by one, and after each candidate frequency offset is determined, try to decode the SSB according to the candidate frequency offset, and then select one from the candidate frequency offsets whose SSB decoding is successful as the first frequency offset.

可选地，终端设备将成功解码SSB的候选频偏中的一个确定为第一频偏，可以包括：终端设备将成功解码的SSB中，信号质量最好的SSB，如接收功率最大的SSB，和/或，信号与干扰加噪声比(signal to interference plus noise ratio，SINR)最大的SSB对应的候选频偏确定为第一频偏。Optionally, the terminal device determines one of the candidate frequency offsets that successfully decode the SSBs as the first frequency offset, which may include: among the SSBs that the terminal device successfully decodes, the SSB with the best signal quality, such as the SSB with the largest received power, And/or, the candidate frequency offset corresponding to the SSB with the largest signal to interference plus noise ratio (signal to interference plus noise ratio, SINR) is determined as the first frequency offset.

本申请实施例中，第一频偏为频率间隔的整数倍，即粗频偏。In the embodiment of the present application, the first frequency offset is an integer multiple of the frequency interval, that is, the coarse frequency offset.

如此，将信号质量最好的SSB，和/或，SINR最大的信道的SSB对应的候选频偏确定为第一频偏，可以减小干扰信号的影响，获得更为准确的第一频偏，从而进一步提高下行信号的解码成功率。In this way, the SSB with the best signal quality, and/or, the candidate frequency offset corresponding to the SSB of the channel with the largest SINR is determined as the first frequency offset, which can reduce the influence of interference signals and obtain a more accurate first frequency offset. Therefore, the decoding success rate of the downlink signal is further improved.

可理解，本申请实施例中，在解码过程中，若一个候选频偏可以成功解码SSB，则可以将该候选频偏确定为第一候选频偏。例如，可以将第一个SSB解码成功的候选频偏作为第一频偏。如此，可以减少盲检测流程，减少资源开销，以及提高检测效率。It can be understood that, in the embodiment of the present application, during the decoding process, if a candidate frequency offset can successfully decode the SSB, the candidate frequency offset may be determined as the first candidate frequency offset. For example, the candidate frequency offset whose first SSB decoding is successful may be used as the first frequency offset. In this way, the blind detection process can be reduced, the resource overhead can be reduced, and the detection efficiency can be improved.

例如，若方式一中，根据候选频偏2*25kHz对应的频点可以成功解码SSB，则第一频偏为2*25kHz，即50kHz。For example, if the SSB can be successfully decoded according to the frequency point corresponding to the candidate frequency offset 2*25kHz in the first manner, the first frequency offset is 2*25kHz, that is, 50kHz.

需要说明的是，本申请实施例中，网络设备还可以发送公共信号，其中，公共信号包括SSB。It should be noted that, in this embodiment of the present application, the network device may also send a public signal, where the public signal includes the SSB.

可选地，公共信号中还可以包括残留最小***消息(remaining minimum system information，RMSI)。Optionally, the common signal may also include remaining minimum system information (RMSI).

S302，终端设备根据第一频偏进行频偏补偿。S302. The terminal device performs frequency offset compensation according to the first frequency offset.

一种可能的设计方案中，终端设备可以根据第一频偏调整终端设备的晶振的时钟频率，并在调整晶振的时钟频率后接收下行公共信号，如RMSI，或下行信道，如物理下行控制信道(physical downlink control channel，PDCCH)或物理下行共享信道(physical downlink share channel，PDSCH)，从而实现频偏补偿。或者，终端设备可以根据第一频偏补偿接收到的下行公共信号，如RMSI，或下行信道，如PDCCH或PDSCH，从而实现频偏补偿。In a possible design scheme, the terminal device can adjust the clock frequency of the crystal oscillator of the terminal device according to the first frequency offset, and receive a downlink public signal, such as RMSI, or a downlink channel, such as a physical downlink control channel, after adjusting the clock frequency of the crystal oscillator (physical downlink control channel, PDCCH) or physical downlink shared channel (physical downlink share channel, PDSCH), so as to realize frequency offset compensation. Alternatively, the terminal device may compensate the received downlink common signal, such as RMSI, or a downlink channel, such as PDCCH or PDSCH, according to the first frequency offset, so as to implement frequency offset compensation.

示例性地，若终端设备需要接收公共信号中除SSB之外的其他公共信号，则可以根据第一频偏调整终端设备的晶振的时钟频率，以进行频偏补偿，这样，终端设备可以根据调整时钟频率后的晶振的频率接收公共信号中除SSB之外的其他公共信号，如RMSI。或者，终端设备根据第一频偏补偿接收到的除SSB之外的其他公共信号，如RMSI，从而实现频偏补偿。For example, if the terminal device needs to receive public signals other than SSB in the public signal, the clock frequency of the crystal oscillator of the terminal device can be adjusted according to the first frequency offset to perform frequency offset compensation. In this way, the terminal device can adjust The frequency of the crystal oscillator after the clock frequency receives other common signals in common signals except SSB, such as RMSI. Alternatively, the terminal device compensates the received public signals other than the SSB, such as RMSI, according to the first frequency offset, so as to implement frequency offset compensation.

或者，若终端设备需要接收公共信号中除SSB之外的其他公共信号，和/或，下行信道，如PDSCH或PDCCH，则终端设备可以根据第一频偏调整晶振的时钟频率，终端设备可以在调整晶振的时钟频率后接收公共信号中除SSB之外的其他公共信号，如RMSI，和/或，下行信道，如PDSCH或PDCCH，从而实现频偏补偿。或者，终端设备根据第一频偏补偿接收到的除SSB之外的其他公共信号，如RMSI，和/或，下行信道，如PDSCH或PDCCH，从而实现频偏补偿。Or, if the terminal equipment needs to receive other common signals except SSB in the public signal, and/or, downlink channel, such as PDSCH or PDCCH, then the terminal equipment can adjust the clock frequency of the crystal oscillator according to the first frequency offset, and the terminal equipment can be in After adjusting the clock frequency of the crystal oscillator, other public signals other than SSB, such as RMSI, and/or downlink channels, such as PDSCH or PDCCH, are received in the public signal, so as to realize frequency offset compensation. Alternatively, the terminal device compensates other received common signals except SSB, such as RMSI, and/or downlink channels, such as PDSCH or PDCCH, according to the first frequency offset, so as to implement frequency offset compensation.

一种可能的设计方案中，图3所示的频偏补偿方法还可以包括步骤4。In a possible design solution, the frequency offset compensation method shown in FIG. 3 may further include step 4.

步骤4，终端设备根据SSB对应的参考信号获取第二频偏。Step 4, the terminal device acquires the second frequency offset according to the reference signal corresponding to the SSB.

其中，第二频偏小于频率间隔，即第二频偏为精细频偏。Wherein, the second frequency offset is smaller than the frequency interval, that is, the second frequency offset is a fine frequency offset.

关于第二频偏的确定方法，可以参考地面网络中频偏的确定方法，此处不再赘述。Regarding the method for determining the second frequency offset, reference may be made to the method for determining the frequency offset in the terrestrial network, which will not be repeated here.

在此情况下，上述S302，终端设备根据第一频偏进行频偏补偿，可以包括：终端设备根据第一频偏和第二频偏进行频偏补偿。In this case, the above S302, the terminal device performing frequency offset compensation according to the first frequency offset may include: the terminal device performing frequency offset compensation according to the first frequency offset and the second frequency offset.

示例性地，终端设备可以将第一频偏和第二频偏之和确定为总频偏，并根据总频偏进行频偏补偿。例如，第一频偏为25kHz，第二频偏为1kHz，则总频偏为26kHz，终端设备根据26kHz进行频偏补偿。Exemplarily, the terminal device may determine the sum of the first frequency offset and the second frequency offset as the total frequency offset, and perform frequency offset compensation according to the total frequency offset. For example, if the first frequency offset is 25 kHz and the second frequency offset is 1 kHz, the total frequency offset is 26 kHz, and the terminal device performs frequency offset compensation based on 26 kHz.

可理解，终端设备根据第一频偏和第二频偏进行频偏补偿的实现与根据第一频偏进行频偏补偿的实现原理类似，例如，终端设备可以根据总频偏调整晶振的时钟频率，并在调整晶振的时钟频率后接收下行信号，如RMSI，或者下行信道，如PDCCH或PDSCH。或者，终端设备可以根据总频偏补偿接收到的下行信号，如RMSI，或者下行信道，如PDCCH或PDSCH。It can be understood that the implementation of frequency offset compensation by the terminal device based on the first frequency offset and the second frequency offset is similar to the implementation principle of frequency offset compensation based on the first frequency offset. For example, the terminal device can adjust the clock frequency of the crystal oscillator according to the total frequency offset , and receive downlink signals, such as RMSI, or downlink channels, such as PDCCH or PDSCH, after adjusting the clock frequency of the crystal oscillator. Alternatively, the terminal device may compensate the received downlink signal, such as RMSI, or a downlink channel, such as PDCCH or PDSCH, according to the total frequency offset.

如此，终端设备可以进行更为精细的频偏补偿，进一步减小下行信号的频偏，从而进一步提高下行信号的解码成功率。In this way, the terminal device can perform finer frequency offset compensation to further reduce the frequency offset of the downlink signal, thereby further improving the decoding success rate of the downlink signal.

基于图3所示的频偏补偿方法，终端设备可以根据频率间隔确定多个候选频偏，并将多个候选频偏中可以成功解码SSB的候选频偏确定为第一频偏，进而根据第一频偏进行频偏补偿，其中，频率间隔小于子载波间隔，如此，可以避免根据子载波间隔扫频，减小扫频的粒度，以提高下行信号的频偏补偿的准确度，从而减小频偏对下行信号的影响，提高下行数据的解码成功率。Based on the frequency offset compensation method shown in Figure 3, the terminal device can determine multiple candidate frequency offsets according to the frequency interval, and determine the candidate frequency offset that can successfully decode the SSB among the multiple candidate frequency offsets as the first frequency offset, and then according to the second A frequency offset is used for frequency offset compensation, wherein the frequency interval is smaller than the subcarrier interval, so that frequency sweeping according to the subcarrier interval can be avoided, and the granularity of frequency sweep can be reduced, so as to improve the accuracy of frequency offset compensation of downlink signals, thereby reducing The impact of frequency offset on downlink signals improves the decoding success rate of downlink data.

示例性地，图5为本申请实施例提供的频偏补偿方法的流程示意图二。该频偏补偿方法包括S501至S502。Exemplarily, FIG. 5 is a second schematic flowchart of a frequency offset compensation method provided in an embodiment of the present application. The frequency offset compensation method includes S501 to S502.

S501，终端设备获取第三频偏。S501. The terminal device acquires a third frequency offset.

其中，第三频偏根据第一星历信息和终端设备的位置确定，第一星历信息包括如下一项或多项：卫星的半长轴(semi major axis(semi-major axis))、偏心率(Eccentricity(eccentricity))、轨道倾角(Inclination angle at reference time(inclination))、升交点赤经(Longitude of ascending node of orbit plane(right ascension of the ascending node))、近地点幅角(Argument of perigee(argument of periapsis))、平近点角(Mean anomaly at reference time(true anomaly and a reference point in time))和参考时间(Ephemeris reference time(the epoch))。Wherein, the third frequency offset is determined according to the first ephemeris information and the position of the terminal device, and the first ephemeris information includes one or more of the following items: semi major axis (semi-major axis) of the satellite, eccentricity Eccentricity (eccentricity)), Inclination angle at reference time (inclination)), right ascension of ascending node (Longitude of ascending node of orbit plane (right ascension of the ascending node)), argument of perigee (Argument of perigee (argument of periapsis)), mean anomaly at reference time (true anomaly and a reference point in time)) and reference time (Ephemeris reference time (the epoch)).

本申请实施例中，第一星历信息具体实现时，可以用卫星的半长轴的平方根，即半长轴的平方根代替半长轴。在此情况下，如表1所示，第一星历信息相关的参数可以分为轨道平面参数(orbital plane parameters)和卫星级参数(satellite level parameters)。终端设备的位置可以基于GNSS确定，关于终端设备的位置的确定方法，可以参考现有技术中终端设备的位置的确定方法，此处不再赘述。In the embodiment of the present application, when the first ephemeris information is specifically realized, the square root of the semi-major axis of the satellite, that is, the square root of the semi-major axis may be used instead of the semi-major axis. In this case, as shown in Table 1, the parameters related to the first ephemeris information can be divided into orbital plane parameters (orbital plane parameters) and satellite level parameters (satellite level parameters). The position of the terminal device may be determined based on GNSS. Regarding the method for determining the position of the terminal device, reference may be made to the method for determining the position of the terminal device in the prior art, which will not be repeated here.

一种可能的设计方案中，上述S501，终端设备获取第三频偏，可以包括：终端设备根据第一星历信息和终端设备的位置获取第三频偏。In a possible design solution, the above S501, the terminal device acquiring the third frequency offset may include: the terminal device acquiring the third frequency offset according to the first ephemeris information and the location of the terminal device.

示例性地，终端设备可以根据终端设备的位置、第一星历信息和网络设备的中心频点，获取第三频偏。其中，中心频点可以是终端设备从网络设备获取的，也可以是存储在本地的。Exemplarily, the terminal device may acquire the third frequency offset according to the location of the terminal device, the first ephemeris information, and the center frequency point of the network device. Wherein, the central frequency point may be obtained by the terminal device from the network device, or may be stored locally.

表1Table 1

为便于理解上述S501，以下以网络设备为卫星进一步说明。In order to facilitate the understanding of the above S501, the network device is used as a satellite for further description below.

具体地，终端设备可以根据当前的时刻和为终端设备提供通信服务的网络设备(即服务卫星)的第一星历信息，获取终端设备的仰角。终端设备还可以根据第一星历信息获取卫星地面高度，然后，终端设备可以根据如下公式(3)和公式(4)，确定第三频偏。Specifically, the terminal device may obtain the elevation angle of the terminal device according to the current time and the first ephemeris information of the network device (that is, the serving satellite) that provides communication services for the terminal device. The terminal device can also obtain the ground altitude of the satellite according to the first ephemeris information, and then the terminal device can determine the third frequency offset according to the following formula (3) and formula (4).

f _d(t)＝f _c·ω _sat·R _E·cos(θ _UE(t))/c； (3) f _d (t) = f _c · ω _sat · R _E · cos(θ _UE (t))/c; (3)

其中，f _d(t)为第三频偏，f _c为网络设备的中心频率，ω _sat为卫星轨道高度，R _E为地球半径，t为当前时刻，θ _UE(t)为t时刻时终端设备的仰角，c为电磁波的传播速度，G为重力常数，M _E为地球质量，h _sat为卫星地面高度。示例性地，G可以为6.67·10 ^-11牛顿平方米每平方千克(newton square metre per square kilogram，Nm2/kg2)，M _E可以为5.98*10 ²⁴千克(kilogram，kg)。 Among them, f _d (t) is the third frequency offset, f _c is the center frequency of network equipment, ω _sat is the satellite orbit height, R _E is the radius of the earth, t is the current time, θ _UE (t) is the terminal at time t The elevation angle of the equipment, c is the propagation speed of electromagnetic waves, G is the gravitational constant, M _E is the mass of the earth, and h _sat is the ground height of the satellite. Exemplarily, G may be 6.67·10 ⁻¹¹ Newton square meter per square kilogram (Nm2/kg2), M _E may be 5.98*10 ²⁴ kilogram (kilogram, kg).

关于上述终端设备的仰角、或卫星地面高度的实现，可以对应参考现有技术中终端设备的仰角、或卫星地面高度的具体实现方式，此处不再赘述。Regarding the realization of the elevation angle of the terminal device or the ground height of the satellite, reference may be made to the specific implementation manner of the elevation angle of the terminal device or the ground height of the satellite in the prior art, which will not be repeated here.

可选地，本申请实施例中，图5所示的频偏补偿方法还可以包括：终端设备确定为终端设备提供服务的网络设备。Optionally, in this embodiment of the present application, the frequency offset compensation method shown in FIG. 5 may further include: the terminal device determining a network device that provides services for the terminal device.

示例性地，终端设备可以根据GNSS信息、当前的时刻和不同卫星的星历信息确定为终端设备提供服务的网络设备，如上述服务卫星。关于终端设备确定为终端设备提供服务的网络设备的具体实现方式，可以参考现有技术中确定服务卫星的具体实现方式，此处不再赘述。Exemplarily, the terminal device may determine a network device that provides services for the terminal device, such as the above-mentioned serving satellite, according to GNSS information, the current time, and ephemeris information of different satellites. Regarding the specific implementation manner for the terminal device to determine the network device that provides the service for the terminal device, reference may be made to the specific implementation manner for determining the serving satellite in the prior art, which will not be repeated here.

S502，终端设备根据第三频偏进行下行频偏补偿。S502. The terminal device performs downlink frequency offset compensation according to the third frequency offset.

一种可能的设计方案中，终端设备可以根据第三频偏调整终端设备的晶振的时钟频率，并在调整晶振的时钟频率后接收下行公共信号，如SSB、或RMSI，和/或，下行信道，如PDCCH或PDSCH，从而实现频偏补偿。或者，终端设备可以根据第三频偏补偿接收到的下行公共信号，如SSB、或RMSI，和/或，下行信道，如PDCCH或PDSCH，从而实现频偏补偿。In a possible design solution, the terminal device can adjust the clock frequency of the crystal oscillator of the terminal device according to the third frequency offset, and after adjusting the clock frequency of the crystal oscillator, receive the downlink public signal, such as SSB or RMSI, and/or, the downlink channel , such as PDCCH or PDSCH, so as to realize frequency offset compensation. Alternatively, the terminal device may compensate the received downlink common signal, such as SSB or RMSI, and/or a downlink channel, such as PDCCH or PDSCH, according to the third frequency offset, so as to implement frequency offset compensation.

一种可能的设计方案中，图5所示的频偏补偿方法还可以包括步骤5至步骤7。In a possible design solution, the frequency offset compensation method shown in FIG. 5 may further include steps 5 to 7.

步骤5，网络设备向终端设备发送SSB。 Step 5, the network device sends the SSB to the terminal device.

步骤6，终端设备根据第三频偏解码SSB。Step 6, the terminal device decodes the SSB according to the third frequency offset.

其中，第三频偏为根据第一星历信息和终端设备的位置确定的频偏，即粗频偏。Wherein, the third frequency offset is a frequency offset determined according to the first ephemeris information and the location of the terminal device, that is, a coarse frequency offset.

示例性地，终端设备可以对第三频偏补偿后的SSB，进行解码操作。Exemplarily, the terminal device may perform a decoding operation on the SSB after the third frequency offset compensation.

如此，终端设备根据第三频偏对SSB进行频偏补偿，并基于频偏补偿后的SSB解码，可以减小频偏对SSB的影响，从而可以提高SSB的解码成功率。In this way, the terminal device performs frequency offset compensation on the SSB according to the third frequency offset, and decodes the SSB based on the frequency offset compensation, which can reduce the impact of the frequency offset on the SSB, thereby improving the decoding success rate of the SSB.

可选地，图5所示频偏补偿方法还可以包括步骤7。Optionally, the frequency offset compensation method shown in FIG. 5 may further include step 7.

步骤7，终端设备根据SSB对应的参考信号获取第四频偏。 Step 7, the terminal device acquires the fourth frequency offset according to the reference signal corresponding to the SSB.

其中，第四频偏小于第三频偏。也就是说，第四频偏为精细频偏。Wherein, the fourth frequency offset is smaller than the third frequency offset. That is to say, the fourth frequency offset is a fine frequency offset.

示例性地，SSB对应的参考信息可以是PBCH中的解调参考信号(demodulation reference signal，DMRS)。Exemplarily, the reference information corresponding to the SSB may be a demodulation reference signal (demodulation reference signal, DMRS) in the PBCH.

在此情况下，上述S502，终端设备根据第三频偏进行下行频偏补偿，可以包括：终端设备根据第三频偏和第四频偏进行下行频偏补偿。In this case, the above S502, the terminal device performing downlink frequency offset compensation according to the third frequency offset may include: the terminal device performing downlink frequency offset compensation according to the third frequency offset and the fourth frequency offset.

示例性地，终端设备可以将第三频偏和第四频偏之和确定为总频偏，并根据总频偏进行频偏补偿。例如，第三频偏为20kHz，第四频偏为1kHz，则总频偏为21kHz，终端设备根据21kHz进行频偏补偿。Exemplarily, the terminal device may determine the sum of the third frequency offset and the fourth frequency offset as the total frequency offset, and perform frequency offset compensation according to the total frequency offset. For example, if the third frequency offset is 20 kHz and the fourth frequency offset is 1 kHz, then the total frequency offset is 21 kHz, and the terminal device performs frequency offset compensation according to 21 kHz.

可理解，终端设备根据第三频偏和第四频偏进行频偏补偿的实现与根据第三频偏进行频偏补偿的实现原理类似，例如，终端设备可以根据总频偏调整晶振的时钟频率，并在调整晶振的时钟频率后接收下行信号，如SSB、或RMSI，或者下行信道，如PDCCH或PDSCH。或者，终端设备可以根据总频偏补偿接收到的下行信号，如SSB、或RMSI，或者下行信道，如PDCCH或PDSCH。It can be understood that the implementation of frequency offset compensation by the terminal device according to the third frequency offset and the fourth frequency offset is similar to the implementation principle of frequency offset compensation based on the third frequency offset. For example, the terminal device can adjust the clock frequency of the crystal oscillator according to the total frequency offset , and receive downlink signals, such as SSB, or RMSI, or downlink channels, such as PDCCH or PDSCH, after adjusting the clock frequency of the crystal oscillator. Alternatively, the terminal device may compensate the received downlink signal, such as SSB or RMSI, or the downlink channel, such as PDCCH or PDSCH, according to the total frequency offset.

如此，终端设备可以进行更精细的频偏补偿，进一步减小频偏对下行信号的影响，从而进一步提高下行信号的解码成功率。In this way, the terminal device can perform finer frequency offset compensation to further reduce the influence of the frequency offset on the downlink signal, thereby further improving the decoding success rate of the downlink signal.

关于第四频偏的实现，可以参考上述图3所示的频偏补偿方法中，第二频偏的具体实现原理，此处不再赘述。Regarding the implementation of the fourth frequency offset, reference may be made to the specific implementation principle of the second frequency offset in the frequency offset compensation method shown in FIG. 3 above, which will not be repeated here.

一种可能的设计方案中，图5所示的频偏补偿方法还可以包括步骤8和步骤9。In a possible design solution, the frequency offset compensation method shown in FIG. 5 may further include Step 8 and Step 9 .

步骤8，网络设备发送辅***信息，终端设备接收辅***信息。In step 8, the network device sends the secondary system information, and the terminal device receives the secondary system information.

其中，辅***信息中承载有第二星历信息。第二星历信息可以包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。本申请实施例中，辅***信息可以是下行公共信号中，除SSB之外的公共信号，如RMSI、或SIB2等。Wherein, the auxiliary system information carries the second ephemeris information. The second ephemeris information may include one or more of the following: semi-major axis of the satellite, eccentricity, orbit inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time. In this embodiment of the present application, the secondary system information may be common downlink signals other than SSB, such as RMSI or SIB2.

示例性地，终端设备可以在根据第三频偏调整晶振的时钟频率后，接收辅***信息，从而对辅***信息进行频偏补偿。或者，终端设备可以根据第三频偏补偿辅***信息，从而对辅***信息进行频偏补偿。如此，终端设备对辅***信息进行频偏补偿后，可以从辅***信息中解码获得第二星历信息。Exemplarily, the terminal device may receive the secondary system information after adjusting the clock frequency of the crystal oscillator according to the third frequency offset, so as to perform frequency offset compensation on the secondary system information. Alternatively, the terminal device may compensate the secondary system information according to the third frequency offset, so as to perform frequency offset compensation on the secondary system information. In this way, after performing frequency offset compensation on the secondary system information, the terminal device can decode the secondary system information to obtain the second ephemeris information.

步骤9，终端设备根据第二星历信息更新第一星历信息。Step 9, the terminal device updates the first ephemeris information according to the second ephemeris information.

如此，终端设备根据接收到的第二星历信息更新第一星历信息，可以在卫星移动的情况下，根据卫星实时的星历信息确定第三频偏，减小卫星位置变化造成的第三频偏的误差，进一步提高频偏补偿的准确度，从而进一步提高下行信号的解码成功率。In this way, the terminal device updates the first ephemeris information according to the received second ephemeris information, and can determine the third frequency offset according to the real-time ephemeris information of the satellite when the satellite is moving, reducing the third frequency offset caused by the satellite position change. The error of the frequency offset further improves the accuracy of the frequency offset compensation, thereby further improving the decoding success rate of the downlink signal.

基于上述图5所示的频偏补偿方法，终端设备可以根据第一星历信息和终端设备的位置获取第三频偏，进而根据第三频偏进行下行频偏补偿，如此，可以减小频偏对下行信号的影响，例如终端设备可以基于频偏补偿后的频点解码下行信号，从而可以提高下行信号的解码成功率。Based on the frequency offset compensation method shown in Figure 5 above, the terminal device can obtain the third frequency offset according to the first ephemeris information and the location of the terminal device, and then perform downlink frequency offset compensation according to the third frequency offset. In this way, the frequency offset can be reduced. The impact of the offset on the downlink signal, for example, the terminal device can decode the downlink signal based on the frequency point after frequency offset compensation, thereby improving the decoding success rate of the downlink signal.

示例性地，图6为本申请实施例提供的频偏补偿方法的流程示意图三。如图6所示，该频偏补偿方法包括：Exemplarily, FIG. 6 is a third schematic flowchart of a frequency offset compensation method provided in an embodiment of the present application. As shown in Figure 6, the frequency offset compensation method includes:

S601，网络设备根据第三星历信息和地理信息获取第五频偏。S601. The network device acquires a fifth frequency offset according to the third ephemeris information and geographical information.

其中，第三星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。地理信息用于指示网络设备的覆盖区域的位置。Wherein, the third ephemeris information includes one or more of the following: semi-major axis of the satellite, eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time. Geographical information is used to indicate the location of the coverage area of a network device.

示例性地，第三星历信息的实现可以参考上述图5中第一星历信息的具体实现方式，此处不再赘述。可理解，第三星历信息可以是网络设备本地存储的，也可以是网络设备从核心网、或其他网络设备获取的。Exemplarily, the implementation of the third ephemeris information may refer to the specific implementation manner of the first ephemeris information in FIG. 5 above, which will not be repeated here. It can be understood that the third ephemeris information may be stored locally by the network device, or obtained by the network device from the core network or other network devices.

本申请实施例中，网络设备的覆盖区域，可以是网络设备的一个波束(beam)在地面上的覆盖区域(以下简称波束的覆盖区域)。网络设备的覆盖区域的位置，可以是网络设备的一个波束的覆盖区域内的一个位置。示例性地，网络设备的覆盖区域的位置，可以为波束的覆盖区域的中心点。图7为本申请实施例提供的网络设备的覆盖区域的位置的示意图。如图7所示，若网络设备，如卫星的波束1的覆盖区域为一个圆形区域，则网络设备的覆盖区域的位置可以为该圆形区域的圆心，即P0点的位置。In the embodiment of the present application, the coverage area of the network device may be the coverage area of a beam (beam) of the network device on the ground (hereinafter referred to as the coverage area of the beam). The location of the coverage area of the network device may be a location within the coverage area of a beam of the network device. Exemplarily, the location of the coverage area of the network device may be a center point of the coverage area of the beam. FIG. 7 is a schematic diagram of locations of coverage areas of network devices provided by an embodiment of the present application. As shown in FIG. 7, if the coverage area of the network equipment, such as beam 1 of the satellite, is a circular area, the location of the coverage area of the network equipment may be the center of the circular area, that is, the position of point P0.

或者，网络设备的覆盖区域的位置可以为波束的覆盖区域内的多个位置。以图7为例，网络设备的覆盖区域的位置可以为P1点的位置、P2点的位置和P3点的位置。Alternatively, the location of the coverage area of the network device may be multiple locations within the coverage area of the beam. Taking FIG. 7 as an example, the location of the coverage area of the network device may be the location of point P1, the location of point P2, and the location of point P3.

本申请实施例中，S601的实现可以参考上述图5所示实施例的S501的具体实现方式，此处不再赘述。本实施例中S601与上述图5所示实施例中S501的区别在于，本实施例的S601中，相当于用网络设备的覆盖区域的位置代替上述S501中终端设备的位置。In the embodiment of the present application, the implementation of S601 may refer to the specific implementation manner of S501 in the above embodiment shown in FIG. 5 , which will not be repeated here. The difference between S601 in this embodiment and S501 in the embodiment shown in FIG. 5 is that in S601 in this embodiment, the position of the terminal device in S501 is replaced by the position of the coverage area of the network device.

S602，网络设备根据第五频偏发送SSB，终端设备接收SSB。S602. The network device sends the SSB according to the fifth frequency offset, and the terminal device receives the SSB.

一种可能的设计方案中，图6所示的频偏补偿方法还可以包括步骤10。In a possible design solution, the frequency offset compensation method shown in FIG. 6 may further include step 10 .

步骤10，网络设备根据第五频偏发送辅***信息或下行控制信令。Step 10, the network device sends secondary system information or downlink control signaling according to the fifth frequency offset.

其中，辅***信息用于指示终端设备根据第五频偏进行频偏补偿。本申请实施例中，辅***信息可以是下行公共信号中，除SSB之外的公共信号，如RMSI、或SIB2等。Wherein, the secondary system information is used to instruct the terminal device to perform frequency offset compensation according to the fifth frequency offset. In this embodiment of the present application, the secondary system information may be common downlink signals other than SSB, such as RMSI or SIB2.

示例性地，网络设备可以根据第五频偏调整晶振的时钟频率，然后在调整晶振的时钟频率后发送辅***信息或下行控制信令。或者，网络设备可以根据第五频偏对辅***信息做补偿，然后再发送辅***信息或下行控制信令。Exemplarily, the network device may adjust the clock frequency of the crystal oscillator according to the fifth frequency offset, and then send secondary system information or downlink control signaling after adjusting the clock frequency of the crystal oscillator. Alternatively, the network device may compensate secondary system information according to the fifth frequency offset, and then send secondary system information or downlink control signaling.

在此情况下，终端设备在解码辅***信息后，可以根据第五频偏，调整终端设备上的晶振，然后在调整晶振后接收下行信号或下行信道，如PDSCH或PDCCH。如此，网络设备可以完成下行公共信号的频偏补偿，终端设备侧完成下行数据或下行信道的频偏补偿。In this case, after decoding the secondary system information, the terminal device can adjust the crystal oscillator on the terminal device according to the fifth frequency offset, and then receive downlink signals or downlink channels, such as PDSCH or PDCCH, after adjusting the crystal oscillator. In this way, the network device can complete the frequency offset compensation of the downlink public signal, and the terminal device side can complete the frequency offset compensation of the downlink data or the downlink channel.

本申请实施例中，第五频偏为根据星历信息和地理信息确定的频偏，即粗频偏，如此，通过辅***信息指示终端设备根据第五频偏进行频偏补偿，可以由每个终端设备各自根据对应的第五频偏对除SSB和辅***信息之外的其他下行信号或下行信道进行粗频偏补偿，可以避免网络设备为不同终端设备发送数据信号时频繁调整晶振的时钟频率，从而减小网络设备的开销，并减少调整晶振的时钟频率的时间，从而提高通信效率。In the embodiment of the present application, the fifth frequency offset is a frequency offset determined according to ephemeris information and geographical information, that is, a coarse frequency offset. In this way, the secondary system information instructs the terminal device to perform frequency offset compensation according to the fifth frequency offset, which can be performed by each Each terminal device performs coarse frequency offset compensation on other downlink signals or downlink channels except SSB and auxiliary system information according to the corresponding fifth frequency offset, which can avoid frequent adjustment of the clock of the crystal oscillator when the network device sends data signals for different terminal devices Frequency, thereby reducing the overhead of network equipment, and reducing the time to adjust the clock frequency of the crystal oscillator, thereby improving communication efficiency.

一种可能的设计方案中，图6所示的频偏补偿方法还可以包括步骤11。In a possible design solution, the frequency offset compensation method shown in FIG. 6 may further include step 11 .

步骤11，网络设备根据第五频偏发送下行信号中，除SSB之外的信号。下行信号中，除SSB之外的信号，可以包括如下一项或多项：RMSI、其他***信息(other system information，OSI)、寻呼(paging)、下行数据信道有PDSCH对应的信号，下行控制信道PDCCH对应的信号，下行导频信号有信道状态信息参考信息(channel state information-reference signal，CSI-RS)，相位参考信号(tracking reference signal，TRS)、相位跟踪参考信息(phase tracking reference signal，PTRS)等。也就是说，网络设备侧对下行控制信令、下行数据信号或下行公共信息中除SSB之外的公共信息进行频偏补偿。Step 11, the network device transmits the downlink signals except the SSB according to the fifth frequency offset. Among the downlink signals, signals other than SSB can include one or more of the following: RMSI, other system information (OSI), paging (paging), downlink data channel with PDSCH corresponding signal, downlink control The signal corresponding to the channel PDCCH, the downlink pilot signal includes channel state information-reference signal (CSI-RS), phase reference signal (tracking reference signal, TRS), phase tracking reference signal (phase tracking reference signal, PTRS) etc. That is to say, the network device side performs frequency offset compensation for downlink control signaling, downlink data signals, or public information other than the SSB in the downlink public information.

示例性地，网络设备在发送数据信号的时候，先根据第五频偏调整晶振的时钟频率，然后再发送数据信号或数据信道，如PDSCH或PDCCH。或者，网络设备在发送数据信号的时候，根据第五频偏补偿下行数据或下行信道，如PDSCH或PDCCH，然后再发送下行数据或下行信道。Exemplarily, when sending a data signal, the network device first adjusts the clock frequency of the crystal oscillator according to the fifth frequency offset, and then sends the data signal or data channel, such as PDSCH or PDCCH. Alternatively, when sending data signals, the network device compensates the downlink data or downlink channel, such as PDSCH or PDCCH, according to the fifth frequency offset, and then sends the downlink data or downlink channel.

如此，由网络设备实现下行数据信号的粗频偏补偿，可以简化终端设备的操作，从而提高终端设备的解码效率。In this way, realizing the coarse frequency offset compensation of the downlink data signal by the network equipment can simplify the operation of the terminal equipment, thereby improving the decoding efficiency of the terminal equipment.

基于上述图6所示的频偏补偿方法，网络设备可以根据第三星历信息和地理信息获取第五频偏，并根据第五频偏发送SSB，如此，可以提前对SSB频偏进行补偿，以减小到达终端设备的SSB的频偏，从而提高SSB的解码成功率。Based on the frequency offset compensation method shown in Figure 6 above, the network device can obtain the fifth frequency offset according to the third ephemeris information and geographic information, and send the SSB according to the fifth frequency offset, so that the SSB frequency offset can be compensated in advance, In order to reduce the frequency offset of the SSB reaching the terminal device, thereby improving the decoding success rate of the SSB.

本申请实施例的频偏补偿方法，可以对下行公共信道和下行数据信道进行频率补偿，从而可以完成终端设备的下行接入流程。The frequency offset compensation method in the embodiment of the present application can perform frequency compensation on the downlink common channel and the downlink data channel, so as to complete the downlink access process of the terminal device.

在完成下行接入流程后，还可以进一步完成上行接入流程。例如，可以按照下述图8或图9的频偏补偿方法，完成上行接入流程。以下结合图8至图9详细说明。After the downlink access procedure is completed, the uplink access procedure may be further completed. For example, the uplink access procedure can be completed according to the frequency offset compensation method in FIG. 8 or FIG. 9 below. The details will be described below in conjunction with FIG. 8 to FIG. 9 .

示例性地，图8为本申请实施例提供的频偏补偿方法的流程示意图四。如图8所示，该频偏补偿方法包括：Exemplarily, FIG. 8 is a fourth schematic flowchart of a frequency offset compensation method provided in an embodiment of the present application. As shown in Figure 8, the frequency offset compensation method includes:

S801，网络设备获取时间提前量。S801. The network device acquires a timing advance.

为便于区分，本实施例中，均以第一时间提前量表示网络设备获取的时间提前量。For ease of distinction, in this embodiment, the timing advance acquired by the network device is represented by the first timing advance.

其中，时间提前量与网络设备的覆盖区域相关；时间提前量用于终端设备向网络设备发送信号。Wherein, the timing advance is related to the coverage area of the network device; the timing advance is used for the terminal device to send a signal to the network device.

一种可能的设计方案中，网络设备获取第一时间提前量，可以包括：网络设备根据网络设备的位置和覆盖区域的位置，获取第一时间提前量。换言之，第一时间提前量根据网络设备的位置和覆盖区域的位置确定。In a possible design solution, obtaining the first timing advance by the network device may include: obtaining the first timing advance by the network device according to a location of the network device and a location of a coverage area. In other words, the first timing advance is determined according to the location of the network device and the location of the coverage area.

示例性地，可以根据网络设备的位置、覆盖区域的位置和电磁波的传播速度，获取第一时间提前量。例如，可以根据网络设备的位置和覆盖区域的位置，获得网络设备的位置和覆盖区域的位置之间的距离，然后将网络设备的位置和覆盖区域的位置之间的距离除以电磁波的传播速度，然后再除以2，即可得到第一时间提前量。Exemplarily, the first timing advance may be acquired according to the location of the network device, the location of the coverage area, and the propagation speed of the electromagnetic wave. For example, the distance between the position of the network device and the position of the coverage area can be obtained according to the position of the network device and the position of the coverage area, and then the distance between the position of the network device and the position of the coverage area can be divided by the propagation speed of the electromagnetic wave , and then divide by 2 to get the first time advance.

本申请实施例中，网络设备的覆盖区域，可以是网络设备的一个波束(beam)在地面上的覆盖区域(以下简称波束的覆盖区域)。在此情况下，网络设备可以根据覆盖区域的每个位置，依次计算一个第一时间提前量，并向终端设备发送第一时间提前量。在此情况下，若网络设备不能成功解码来自终端设备的数据，则网络设备可以采用下一个覆盖区域的位置，再计算一个第一时间提前量，直至得到网络设备能够成功解码上行信号的第一时间提前量。如此，可以采用更接近终端设备的实际位置的覆盖区域的位置，来计算第一时间提前量，提高第一时间提前量的准确度，从而可以提高上行接入流程的成功率。In the embodiment of the present application, the coverage area of the network device may be the coverage area of a beam (beam) of the network device on the ground (hereinafter referred to as the coverage area of the beam). In this case, the network device may sequentially calculate a first timing advance according to each location in the coverage area, and send the first timing advance to the terminal device. In this case, if the network device cannot successfully decode the data from the terminal device, the network device can use the location of the next coverage area, and then calculate a first timing advance until the first time that the network device can successfully decode the uplink signal is obtained. Timing advance. In this way, the location of the coverage area closer to the actual location of the terminal device can be used to calculate the first timing advance, which improves the accuracy of the first timing advance, thereby improving the success rate of the uplink access procedure.

关于网络设备的覆盖区域的位置的实现，可以参考图6所示的频偏补偿方法中，网络设备的覆盖区域的位置的具体实现方式，此处不再赘述。Regarding the implementation of the location of the coverage area of the network device, reference may be made to the specific implementation manner of the location of the coverage area of the network device in the frequency offset compensation method shown in FIG. 6 , which will not be repeated here.

S802，网络设备向终端设备发送第一时间提前量。S802. The network device sends the first timing advance to the terminal device.

一种可能的设计方案中，第一时间提前量可以承载于如下一项或多项中：辅***信息，如RMSI、或SIB2等，或下行控制信令，如无线资源控制(radio resource control，RRC)信令。In a possible design solution, the first timing advance may be carried in one or more of the following: secondary system information, such as RMSI, or SIB2, etc., or downlink control signaling, such as radio resource control (radio resource control, RRC) signaling.

如此，终端设备可以在发送上行信号之前接收到时间提前量，并根据时间提前量发送信号，以使信号能够准时到达网络设备，提高接收成功率。In this way, the terminal device can receive the timing advance before sending the uplink signal, and send the signal according to the timing advance, so that the signal can reach the network device on time and improve the reception success rate.

本实施例中，在S802之前，终端设备还可以确定信号质量最好的SSB的索引(index)，如SINR最大、或接收功率最大的SSB的索引，进而根据该SSB的索引确定该SSB对应的RMSI，在此情况下，终端设备从该RMSI中接收第一时间提前量。In this embodiment, before S802, the terminal device may also determine the index (index) of the SSB with the best signal quality, such as the index of the SSB with the highest SINR or the highest received power, and then determine the corresponding SSB according to the index of the SSB. RMSI from which, in this case, the terminal device receives the first timing advance.

S803，终端设备根据第一时间提前量向网络设备发送信号。S803. The terminal device sends a signal to the network device according to the first timing advance.

示例性地，网络设备可以提前第一时间提前量向网络设备发送物理随机接入信道(physical random access channel，PRACH)、物理上行共享信道(physical uplink share channel，PUSCH)或物理上行控制信道(physical uplink control channel，PUCCH)。Exemplarily, the network device may send a physical random access channel (physical random access channel, PRACH), a physical uplink shared channel (physical uplink share channel, PUSCH) or a physical uplink control channel (physical uplink control channel) to the network device in advance of the first timing advance uplink control channel, PUCCH).

或者，终端设备可以根据第一时间提前量提前向网络设备发送PRACH，接着，终端设备获取来自网络设备的第二时间提前量，并根据第一时间量和第二时间提前量提前向网络设备发送PUSCH或PDCCH。可理解，覆盖区域的位置与终端设备的实际位置，可能存在偏差，因此，本申请实施例中，第一提前量是基于波束中心位置和卫星位置计算的，波束中心位置与实际终端位置有差异，并且卫星的位置也会有微小变化，所以网络侧会基于终端发送的PRACH，再估计一个定时提前量，然后下发给UE，进一步进行精细化调整。第二时间提前量是与信道状态或终端设备的时钟状态等相关时间提前量，若信道状态或终端设备的时钟状态不同，则第二时间提前量可能不同。Alternatively, the terminal device may send the PRACH to the network device in advance according to the first timing advance, and then, the terminal device obtains the second timing advance from the network device, and sends the PRACH to the network device in advance according to the first timing and the second timing advance PUSCH or PDCCH. It can be understood that there may be a deviation between the location of the coverage area and the actual location of the terminal device. Therefore, in the embodiment of the present application, the first advance amount is calculated based on the position of the beam center and the position of the satellite, and the position of the center of the beam is different from the actual location of the terminal. , and the position of the satellite will also change slightly, so the network side will estimate a timing advance based on the PRACH sent by the terminal, and then send it to the UE for further fine-tuning. The second timing advance is a timing advance related to the channel state or the clock state of the terminal device. If the channel state or the clock state of the terminal device is different, the second timing advance may be different.

关于第二时间提前量的实现方式，可以参考现有技术中地面网络中终端设备的时间提前量的具体实现方式，此处不再赘述。For the implementation of the second timing advance, reference may be made to the specific implementation of the timing advance of the terminal device in the terrestrial network in the prior art, which will not be repeated here.

基于上述图8所示的频偏补偿方法，网络设备获取第一时间提前量，并向终端设备发送第一时间提前量，其中，第一时间提前量与网络设备的覆盖区域相关。如此，网络设备可以基于网络设备的覆盖区域确定第一时间提前量，例如，网络设备可以使用覆盖区域内的位置作为终端设备的位置，从而可以避免使用终端设备的GNSS信息来获取频偏，提高适用性。Based on the frequency offset compensation method shown in FIG. 8 above, the network device acquires the first timing advance and sends the first timing advance to the terminal device, where the first timing advance is related to the coverage area of the network device. In this way, the network device can determine the first timing advance based on the coverage area of the network device. For example, the network device can use the location in the coverage area as the location of the terminal device, thereby avoiding using the GNSS information of the terminal device to obtain the frequency offset and improving applicability.

示例性地，图9为本申请实施例提供的频偏补偿方法的流程示意图五。如图9所示，该频偏补偿方法包括：Exemplarily, FIG. 9 is a fifth schematic flowchart of a frequency offset compensation method provided in an embodiment of the present application. As shown in Figure 9, the frequency offset compensation method includes:

S901，网络设备获取时间提前量。S901. The network device acquires a timing advance.

为便于区分，本实施例中，均以第三时间提前量表示网络设备获取的时间提前量。For ease of distinction, in this embodiment, the third timing advance is used to represent the timing advance acquired by the network device.

一种可能的设计方案中，网络设备获取第三时间提前量可以包括：网络设备根据网络设备的位置和网络设备的覆盖区域的位置，获取第三时间提前量。换言之，第三时间提前量根据网络设备的位置和网络设备的覆盖区域的位置确定。In a possible design solution, obtaining the third timing advance by the network device may include: the network device obtaining the third timing advance according to a location of the network device and a location of a coverage area of the network device. In other words, the third timing advance is determined according to the location of the network device and the location of the coverage area of the network device.

关于网络设备的覆盖区域的位置，可以参考图6所示的频偏补偿方法中，网络设备的覆盖区域的位置，此处不再赘述。Regarding the location of the coverage area of the network device, reference may be made to the location of the coverage area of the network device in the frequency offset compensation method shown in FIG. 6 , which will not be repeated here.

关于第三时间提前量的具体实现方式，可以参考上述图8中，第一时间提前量的具体实现方式，此处不再赘述。Regarding the specific implementation manner of the third timing advance, reference may be made to the specific implementation manner of the first timing advance in FIG. 8 above, which will not be repeated here.

S902，终端设备发送信号，网络设备根据第三时间提前量接收信号。S902. The terminal device sends a signal, and the network device receives the signal according to the third timing advance.

一种可能的设计方案中，网络设备根据时间提前量接收信号，可以包括：网络设备滞后第三时间提前量接收来自终端设备的信号。In a possible design solution, the network device receiving the signal according to the timing advance may include: the network device receiving the signal from the terminal device lagging behind the third timing advance.

例如，若终端设备在T2时刻开始向网络设备发送上行信号，终端设备与基站之间的传输时延为TA2，则上行信号在T2+TA2时刻到达网络设备，也就是说，网络设备在T2+TA2时刻接收来自终端设备的上行信号，如PRACH、PUSCH或PDCCH。For example, if the terminal device starts to send an uplink signal to the network device at T2, and the transmission delay between the terminal device and the base station is TA2, the uplink signal arrives at the network device at T2+TA2, that is, the network device reaches the network device at T2+TA2. TA2 receives uplink signals from the terminal equipment at all times, such as PRACH, PUSCH or PDCCH.

如此，网络设备可以在信号到达网络设备时，准时接收信号，从而能够提高接收成功率。In this way, the network device can receive the signal on time when the signal arrives at the network device, thereby improving the reception success rate.

可理解，本实施例中，终端设备可以按照地面网络调整时间提前量的方式，进行时间的微调，此处不再赘述。It can be understood that, in this embodiment, the terminal device may fine-tune the time according to the manner in which the terrestrial network adjusts the timing advance, which will not be repeated here.

基于上述图9所示的频偏补偿方法，网络设备获取第三时间提前量，并根据第三时间提前量接收来自终端设备的信号，其中，第三时间提前量与网络设备的覆盖区域相关。如此，网络设备可以基于网络设备的覆盖区域确定第三时间提前量，例如，网络设备可以使用覆盖区域内的位置作为终端设备的位置，从而可以避免使用终端设备的GNSS信息来获取频偏，提高适用性。Based on the frequency offset compensation method shown in FIG. 9 above, the network device obtains the third timing advance, and receives a signal from the terminal device according to the third timing advance, wherein the third timing advance is related to the coverage area of the network device. In this way, the network device can determine the third timing advance based on the coverage area of the network device. For example, the network device can use the location in the coverage area as the location of the terminal device, so as to avoid using the GNSS information of the terminal device to obtain the frequency offset and improve applicability.

以上结合图3-图9详细说明了本申请实施例提供的频偏补偿方法。以下结合图10-图14详细说明用于执行本申请实施例提供的频偏补偿方法的频偏补偿装置。The frequency offset compensation method provided by the embodiment of the present application is described in detail above with reference to FIGS. 3-9 . The frequency offset compensation device for performing the frequency offset compensation method provided by the embodiment of the present application will be described in detail below with reference to FIGS. 10 to 14 .

示例性地，图10是本申请实施例提供的频偏补偿装置的结构示意图一。如图10所示，频偏补偿装置1000包括：获取模块1001和补偿模块1002。为了便于说明，图10仅示出了该频偏补偿装置1000的主要部件。Exemplarily, FIG. 10 is a first structural schematic diagram of a frequency offset compensation device provided by an embodiment of the present application. As shown in FIG. 10 , the frequency offset compensation device 1000 includes: an acquisition module 1001 and a compensation module 1002 . For ease of description, FIG. 10 only shows main components of the frequency offset compensation device 1000 .

一些实施例中，频偏补偿装置1000可适用于图2中所示出的通信***中，执行图3中所示出的频偏补偿方法中终端设备的功能。In some embodiments, the frequency offset compensation apparatus 1000 is applicable to the communication system shown in FIG. 2 , and performs the functions of the terminal equipment in the frequency offset compensation method shown in FIG. 3 .

其中，获取模块1001，用于获取第一频偏。Wherein, the acquiring module 1001 is configured to acquire the first frequency offset.

其中，第一频偏为多个候选频偏中，已经成功解码同步信号和广播信道块SSB的候选频偏中的一个。多个候选频偏由终端设备根据频率间隔确定，且多个候选频偏中相邻的两个频偏之间的频率间隔小于子载波间隔。Wherein, the first frequency offset is one of the candidate frequency offsets that have successfully decoded the synchronization signal and the broadcast channel block SSB among the plurality of candidate frequency offsets. The multiple candidate frequency offsets are determined by the terminal device according to the frequency interval, and the frequency interval between two adjacent frequency offsets among the multiple candidate frequency offsets is smaller than the subcarrier interval.

补偿模块1002，用于根据第一频偏进行频偏补偿。The compensation module 1002 is configured to perform frequency offset compensation according to the first frequency offset.

一种可能的设计方案中，获取模块1001，用于根据频率间隔获取多个候选频偏，并根据每个候选频偏各自解码SSB。获取模块1001，用于将成功解码SSB的候选频偏中的一个确定为第一频偏。In a possible design solution, the obtaining module 1001 is configured to obtain multiple candidate frequency offsets according to frequency intervals, and decode SSBs according to each candidate frequency offset. An obtaining module 1001, configured to determine one of the candidate frequency offsets that successfully decode the SSB as the first frequency offset.

可选地，获取模块1001，用于将成功解码的SSB中，信号质量最好的SSB对应的候选频偏确定为第一频偏。Optionally, the obtaining module 1001 is configured to determine a candidate frequency offset corresponding to the SSB with the best signal quality among the successfully decoded SSBs as the first frequency offset.

一种可能的设计方案中，获取模块1001，还用于根据SSB对应的参考信号获取第二频偏。其中，第二频偏小于频率间隔。In a possible design solution, the acquiring module 1001 is further configured to acquire the second frequency offset according to the reference signal corresponding to the SSB. Wherein, the second frequency offset is smaller than the frequency interval.

补偿模块1002，用于根据第一频偏和第二频偏进行频偏补偿。The compensation module 1002 is configured to perform frequency offset compensation according to the first frequency offset and the second frequency offset.

可选地，获取模块1001和补偿模块1002可以集成为一个模块，如处理模块(图10中未示出)。其中，处理模块用于实现该频偏补偿装置1000的处理功能。应理解，频偏补偿装置1000中涉及的处理模块可以由处理器或处理器相关电路组件实现，可以为处理器或处理单元。Optionally, the acquisition module 1001 and the compensation module 1002 may be integrated into one module, such as a processing module (not shown in FIG. 10 ). Wherein, the processing module is used to realize the processing function of the frequency offset compensation device 1000 . It should be understood that the processing modules involved in the frequency offset compensation apparatus 1000 may be implemented by processors or processor-related circuit components, and may be processors or processing units.

可选地，频偏补偿装置1000还可以包括存储模块(图10中未示出)，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置1000可以执行图3所示的频偏补偿方法。Optionally, the frequency offset compensation apparatus 1000 may further include a storage module (not shown in FIG. 10 ), where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device 1000 can execute the frequency offset compensation method shown in FIG. 3 .

可选地，频偏补偿装置1000还可以包括收发模块。其中，收发模块用于实现该频偏补偿装置1000的发送功能和接收功能。应理解，收发模块可以由收发器或收发器相关电路组件实现，可以为收发器或收发单元。Optionally, the frequency offset compensation apparatus 1000 may further include a transceiver module. Wherein, the transceiver module is used to realize the sending function and receiving function of the frequency offset compensation device 1000 . It should be understood that the transceiver module may be implemented by a transceiver or a transceiver-related circuit component, and may be a transceiver or a transceiver unit.

需要说明的是，频偏补偿装置1000可以是终端设备，也可以是可设置于终端设备中的芯片(***)或其他部件或组件，还可以是包含终端设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device 1000 can be a terminal device, or a chip (system) or other components or components that can be set in the terminal device, or a device that includes the terminal device, which is not covered by this application. limited.

此外，频偏补偿装置1000的技术效果可以参考图3所示的频偏补偿方法的技术效果，此处不再赘述。In addition, the technical effect of the frequency offset compensation apparatus 1000 may refer to the technical effect of the frequency offset compensation method shown in FIG. 3 , which will not be repeated here.

另一些实施例中，频偏补偿装置1000可适用于图2中所示出的通信***中，执行图5中所示出的频偏补偿方法中终端设备的功能。In some other embodiments, the frequency offset compensation apparatus 1000 may be applicable to the communication system shown in FIG. 2 , and perform the functions of the terminal equipment in the frequency offset compensation method shown in FIG. 5 .

获取模块1001，用于获取第三频偏。其中，第一频偏根据第一星历信息和终端设备的位置确定，第一星历信息包括：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。An acquiring module 1001, configured to acquire a third frequency offset. Among them, the first frequency offset is determined according to the first ephemeris information and the position of the terminal device. The first ephemeris information includes: the semi-major axis of the satellite, the eccentricity, the orbit inclination, the right ascension of the ascending node, the argument of perigee, and the mean anomaly. angle and reference time.

补偿模块1002，用于根据第三频偏进行下行频偏补偿。The compensation module 1002 is configured to perform downlink frequency offset compensation according to the third frequency offset.

一种可能的设计方案中，获取模块1001，用于根据第一星历信息和终端设备的位置获取第三频偏。In a possible design solution, the obtaining module 1001 is configured to obtain the third frequency offset according to the first ephemeris information and the location of the terminal device.

可选地，补偿模块1002，还用于根据第三频偏解码SSB。Optionally, the compensation module 1002 is further configured to decode the SSB according to the third frequency offset.

进一步地，获取模块1001，用于根据SSB对应的参考信号获取第四频偏。其中，第四频偏小于第一频偏。Further, the obtaining module 1001 is configured to obtain a fourth frequency offset according to a reference signal corresponding to the SSB. Wherein, the fourth frequency offset is smaller than the first frequency offset.

补偿模块1002，用于根据第一频偏和第四频偏进行下行频偏补偿。The compensation module 1002 is configured to perform downlink frequency offset compensation according to the first frequency offset and the fourth frequency offset.

一种可能的设计方案中，获取模块1001，还用于接收辅***信息。In a possible design solution, the obtaining module 1001 is also configured to receive secondary system information.

其中，辅***信息中承载有第二星历信息。获取模块1001，还用于根据第二星历信息更新第一星历信息。第二星历信息包括：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。Wherein, the auxiliary system information carries the second ephemeris information. The obtaining module 1001 is further configured to update the first ephemeris information according to the second ephemeris information. The second ephemeris information includes: the satellite's semi-major axis, eccentricity, orbit inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time.

可选地，频偏补偿装置1000还可以包括存储模块(图10中未示出)，该存储模块存储有程序或指令。当处理模块执行该程序或指令时，使得该频偏补偿装置1000可以执行图5所示的频偏补偿方法。Optionally, the frequency offset compensation apparatus 1000 may further include a storage module (not shown in FIG. 10 ), where programs or instructions are stored in the storage module. When the processing module executes the program or instruction, the frequency offset compensation device 1000 can execute the frequency offset compensation method shown in FIG. 5 .

可选地，频偏补偿装置1000还可以包括收发模块。其中，收发模块用于实现该频偏补偿装置1000的发送功能和接收功能。应理解，收发模块可以由收发器或收发器相关电路组件实现，可以为收发器或收发单元。Optionally, the frequency offset compensation apparatus 1000 may further include a transceiver module. Wherein, the transceiver module is used to realize the sending function and receiving function of the frequency offset compensation device 1000. It should be understood that the transceiver module may be implemented by a transceiver or a transceiver-related circuit component, and may be a transceiver or a transceiver unit.

此外，频偏补偿装置1000的技术效果可以图5所示的频偏补偿方法的技术效果，此处不再赘述。In addition, the technical effect of the frequency offset compensation apparatus 1000 can be compared to the technical effect of the frequency offset compensation method shown in FIG. 5 , which will not be repeated here.

示例性地，图11是本申请实施例提供的频偏补偿装置的结构示意图二。如图11所示，频偏补偿装置1100包括：处理模块1101和收发模块1102。为了便于说明，图11仅示出了该频偏补偿装置1100的主要部件。Exemplarily, FIG. 11 is a second structural schematic diagram of a frequency offset compensation device provided by an embodiment of the present application. As shown in FIG. 11 , the frequency offset compensation device 1100 includes: a processing module 1101 and a transceiver module 1102 . For ease of description, FIG. 11 only shows main components of the frequency offset compensation device 1100 .

一些实施例中，频偏补偿装置1100可适用于图2中所示出的通信***中，执行图6中所示出的频偏补偿方法中网络设备的功能。In some embodiments, the frequency offset compensation apparatus 1100 is applicable to the communication system shown in FIG. 2 , and performs the function of the network device in the frequency offset compensation method shown in FIG. 6 .

处理模块1101，用于根据第三星历信息和地理信息获取第五频偏。The processing module 1101 is configured to acquire a fifth frequency offset according to the third ephemeris information and geographic information.

其中，第三星历信息包括：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。地理信息用于指示网络设备的覆盖区域的位置。Wherein, the third ephemeris information includes: the satellite's semi-major axis, eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time. Geographical information is used to indicate the location of the coverage area of a network device.

收发模块1102，用于根据第五频偏发送同步信号和下行广播信道块SSB。The transceiver module 1102 is configured to send the synchronization signal and the downlink broadcast channel block SSB according to the fifth frequency offset.

一种可能的设计方案中，收发模块1102，还用于根据第五频偏发送辅***信息或下行控制信令；辅***信息用于指示终端设备根据第五频偏进行频偏补偿。In a possible design solution, the transceiver module 1102 is also configured to send secondary system information or downlink control signaling according to the fifth frequency offset; the secondary system information is used to instruct the terminal device to perform frequency offset compensation according to the fifth frequency offset.

可选地，收发模块1102，还用于根据第五频偏发送下行信号中，除SSB之外的信号。Optionally, the transceiver module 1102 is further configured to send signals other than the SSB in the downlink signal according to the fifth frequency offset.

可选地，收发模块1102可以包括接收模块和发送模块(图11中未示出)。其中，收发模块1102用于实现频偏补偿装置1100的发送功能和接收功能。Optionally, the transceiver module 1102 may include a receiving module and a sending module (not shown in FIG. 11 ). Wherein, the transceiver module 1102 is used to realize the sending function and the receiving function of the frequency offset compensation device 1100 .

可选地，频偏补偿装置1100还可以包括存储模块(图11中未示出)，该存储模块存储有程序或指令。当处理模块1101执行该程序或指令时，使得该频偏补偿装置1100可以执行图6所示的频偏补偿方法。Optionally, the frequency offset compensation apparatus 1100 may further include a storage module (not shown in FIG. 11 ), where programs or instructions are stored in the storage module. When the processing module 1101 executes the program or instruction, the frequency offset compensation apparatus 1100 can execute the frequency offset compensation method shown in FIG. 6 .

应理解，频偏补偿装置1100中涉及的处理模块1101可以由处理器或处理器相关电路组件实现，可以为处理器或处理单元；收发模块1102可以由收发器或收发器相关电路组件实现，可以为收发器或收发单元。It should be understood that the processing module 1101 involved in the frequency offset compensation device 1100 may be implemented by a processor or a processor-related circuit component, and may be a processor or a processing unit; the transceiver module 1102 may be implemented by a transceiver or a transceiver-related circuit component, and may be For the transceiver or transceiver unit.

需要说明的是，频偏补偿装置1100可以是网络设备，也可以是可设置于网络设备中的芯片(***)或其他部件或组件，还可以是包含网络设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device 1100 may be a network device, or a chip (system) or other components or components that may be installed in the network device, or a device that includes the network device, which is not covered by this application. limited.

此外，频偏补偿装置1100的技术效果可以参考图6所示的频偏补偿方法的技术效果，此处不再赘述。In addition, the technical effect of the frequency offset compensation apparatus 1100 may refer to the technical effect of the frequency offset compensation method shown in FIG. 6 , which will not be repeated here.

另一些实施例中，频偏补偿装置1100可适用于图2中所示出的通信***中，执行图8中所示出的频偏补偿方法中网络设备的功能。In some other embodiments, the frequency offset compensation apparatus 1100 may be applicable to the communication system shown in FIG. 2 , and perform the functions of the network equipment in the frequency offset compensation method shown in FIG. 8 .

处理模块1101，用于获取时间提前量。其中，时间提前量与网络设备的覆盖区域相关。收发模块1102，用于发送时间提前量。其中，时间提前量用于网络设备的覆盖区域内的终端设备向网络设备发送信号。A processing module 1101, configured to acquire a timing advance. Wherein, the timing advance is related to the coverage area of the network device. The transceiver module 1102 is configured to send the timing advance. Wherein, the timing advance is used for the terminal equipment in the coverage area of the network equipment to send signals to the network equipment.

一种可能的设计方案中，处理模块1101，用于根据网络设备的位置和覆盖区域的位置，获取时间提前量。In a possible design solution, the processing module 1101 is configured to acquire the timing advance according to the location of the network device and the location of the coverage area.

可选地，频偏补偿装置1100还可以包括存储模块(图11中未示出)，该存储模块存储有程序或指令。当处理模块1101执行该程序或指令时，使得频偏补偿装置1100可以执行图6中任一项所示出的频偏补偿方法中网络设备的功能。Optionally, the frequency offset compensation apparatus 1100 may further include a storage module (not shown in FIG. 11 ), where programs or instructions are stored in the storage module. When the processing module 1101 executes the program or instruction, the frequency offset compensation apparatus 1100 can perform the function of the network device in any one of the frequency offset compensation methods shown in FIG. 6 .

此外，频偏补偿装置1100的技术效果可以参考图8中任一项所示出的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation apparatus 1100, reference may be made to the technical effect of any one of the frequency offset compensation methods shown in FIG. 8 , which will not be repeated here.

另一些实施例中，频偏补偿装置1100可适用于图2中所示出的通信***中，执行图9中所示出的频偏补偿方法中网络设备的功能。In some other embodiments, the frequency offset compensation apparatus 1100 may be applicable to the communication system shown in FIG. 2 , and perform the functions of the network equipment in the frequency offset compensation method shown in FIG. 9 .

其中，处理模块1101和收发模块1102。其中，处理模块1101，用于获取时间提前量。其中，时间提前量与网络设备的覆盖区域相关。收发模块1102，用于根据时间提前量接收信号。Among them, the processing module 1101 and the transceiver module 1102 . Wherein, the processing module 1101 is configured to acquire the timing advance. Wherein, the timing advance is related to the coverage area of the network device. The transceiver module 1102 is configured to receive signals according to the timing advance.

一种可能的设计方案中，处理模块1101，用于根据网络设备的位置和网络设备的覆盖区域的位置，获取时间提前量。In a possible design solution, the processing module 1101 is configured to acquire the timing advance according to the location of the network device and the location of the coverage area of the network device.

一种可能的设计方案中，收发模块1102，用于滞后时间提前量接收来自终端设备的信号。In a possible design solution, the transceiver module 1102 is configured to receive a signal from a terminal device with a delay in time advance.

可选地，频偏补偿装置1100还可以包括存储模块(图11中未示出)，该存储模块存储有程序或指令。当处理模块1101执行该程序或指令时，使得频偏补偿装置1100可以执行图9所示的频偏补偿方法中网络设备的功能。Optionally, the frequency offset compensation apparatus 1100 may further include a storage module (not shown in FIG. 11 ), where programs or instructions are stored in the storage module. When the processing module 1101 executes the program or instruction, the frequency offset compensation apparatus 1100 can execute the function of the network device in the frequency offset compensation method shown in FIG. 9 .

需要说明的是，频偏补偿装置1100可以是图2中所示出的网络设备，也可以是设置于上述网络设备中的芯片(***)或其他部件或组件，或者包含该网络设备的装置，本申请实施例对此不做限定。It should be noted that the frequency offset compensation device 1100 may be the network device shown in FIG. 2 , or may be a chip (system) or other components or components disposed in the above network device, or a device including the network device, This embodiment of the present application does not limit it.

此外，频偏补偿装置1100的技术效果，可以参考图9中任一项所示出的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation apparatus 1100, reference may be made to the technical effect of any one of the frequency offset compensation methods shown in FIG. 9 , which will not be repeated here.

示例性地，图12为本申请实施例提供的频偏补偿装置的结构示意图三。如图12 所示，频偏补偿装置1200可以包括室内基带处理单元(building baseband unit，BBU)1201和有源天线单元(active antenna unit，AAU)1202。BBU1201可以用于执行数据计算和处理的功能。AAU1202可以用于实现频偏补偿装置的发送功能和接收功能。Exemplarily, FIG. 12 is a third schematic structural diagram of a frequency offset compensation device provided by an embodiment of the present application. As shown in FIG. 12 , the frequency offset compensation device 1200 may include an indoor baseband processing unit (building baseband unit, BBU) 1201 and an active antenna unit (active antenna unit, AAU) 1202. BBU1201 can be used to perform data calculation and processing functions. The AAU1202 can be used to implement the sending and receiving functions of the frequency offset compensation device.

需要说明的是，频偏补偿装置1200可以是图2中所示出的网络设备，也可以是设置于上述网络设备中的芯片(***)或其他部件或组件，或者包含该网络设备的装置，本申请实施例对此不做限定。It should be noted that the frequency offset compensation device 1200 may be the network device shown in FIG. 2 , or may be a chip (system) or other components or components disposed in the above network device, or a device including the network device, This embodiment of the present application does not limit it.

此外，频偏补偿装置1200的技术效果，可以参考图6、图8或图9中任一项所示出的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation apparatus 1200, reference may be made to the technical effect of the frequency offset compensation method shown in any one of FIG. 6 , FIG. 8 or FIG. 9 , which will not be repeated here.

示例性地，图13是本申请实施例提供的频偏补偿装置的结构示意图四。如图13所示，频偏补偿装置1300包括：接收模块1301和发送模块1302。为了便于说明，图13仅示出了该频偏补偿装置1300的主要部件。Exemplarily, FIG. 13 is a fourth structural schematic diagram of a frequency offset compensation device provided by an embodiment of the present application. As shown in FIG. 13 , the frequency offset compensation device 1300 includes: a receiving module 1301 and a sending module 1302 . For ease of description, FIG. 13 only shows main components of the frequency offset compensation device 1300 .

频偏补偿装置1300可适用于图2中所示出的通信***中，执行图8中所示出的频偏补偿方法中终端设备的功能。The frequency offset compensation apparatus 1300 is applicable to the communication system shown in FIG. 2 , and performs the functions of the terminal equipment in the frequency offset compensation method shown in FIG. 8 .

其中，接收模块1301，用于接收时间提前量。Wherein, the receiving module 1301 is configured to receive the timing advance.

其中，时间提前量与网络设备的覆盖区域相关。Wherein, the timing advance is related to the coverage area of the network device.

发送模块1302，用于根据时间提前量向网络设备发送信号。A sending module 1302, configured to send a signal to the network device according to the timing advance.

可选地，接收模块1301和发送模块1302也可以集成为一个模块，如收发模块(图13中未示出)。其中，收发模块用于实现频偏补偿装置1300的发送功能和接收功能。Optionally, the receiving module 1301 and the sending module 1302 may also be integrated into one module, such as a transceiver module (not shown in FIG. 13 ). Wherein, the transceiver module is used to realize the sending function and receiving function of the frequency offset compensation device 1300 .

可选地，频偏补偿装置1300还可以包括处理模块(图13中以虚线框示出)。其中，处理模块用于实现频偏补偿装置1300的处理功能。Optionally, the frequency offset compensation apparatus 1300 may further include a processing module (shown by a dashed box in FIG. 13 ). Wherein, the processing module is used to realize the processing function of the frequency offset compensation device 1300 .

可选地，频偏补偿装置1300还可以包括存储模块(图13中未示出)，该存储模块存储有程序或指令。当接收模块1301执行该程序或指令时，使得频偏补偿装置1300可以执行图8中任一项所示出的频偏补偿方法中终端设备的功能。Optionally, the frequency offset compensation apparatus 1300 may further include a storage module (not shown in FIG. 13 ), where programs or instructions are stored in the storage module. When the receiving module 1301 executes the program or instruction, the frequency offset compensation apparatus 1300 can perform the function of the terminal device in any one of the frequency offset compensation methods shown in FIG. 8 .

应理解，频偏补偿装置1300中涉及的处理模块可以由处理器或处理器相关电路组件实现，可以为处理器或处理单元；收发模块可以由收发器或收发器相关电路组件实现，可以为收发器或收发单元。It should be understood that the processing module involved in the frequency offset compensation device 1300 may be implemented by a processor or a processor-related circuit component, and may be a processor or a processing unit; the transceiver module may be implemented by a transceiver or a transceiver-related circuit component, and may be a transceiver Transceiver or Transceiver Unit.

需要说明的是，频偏补偿装置1300可以是终端设备，也可以是可设置于终端设备中的芯片(***)或其他部件或组件，还可以是包含终端设备的装置，本申请对此不做限定。It should be noted that the frequency offset compensation device 1300 may be a terminal device, or a chip (system) or other components or components that may be installed in a terminal device, or a device that includes a terminal device, which is not covered by this application. limited.

此外，频偏补偿装置1300的技术效果可以参考图8中任一项所示出的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation apparatus 1300, reference may be made to the technical effect of any one of the frequency offset compensation methods shown in FIG. 8 , which will not be repeated here.

示例性地，图14为本申请实施例提供的频偏补偿装置的结构示意图五。该频偏补偿装置可以是终端设备或网络设备，也可以是可设置于终端设备或网络设备的芯片(***)或其他部件或组件。如图14所示，频偏补偿装置1400可以包括处理器1401。可选地，频偏补偿装置1400还可以包括存储器1402和/或收发器1403。其中，处理器 1401与存储器1402和收发器1403耦合，如可以通过通信总线连接。Exemplarily, FIG. 14 is a fifth structural schematic diagram of a frequency offset compensation device provided in an embodiment of the present application. The frequency offset compensation device may be a terminal device or a network device, or may be a chip (system) or other components or components that may be provided in the terminal device or the network device. As shown in FIG. 14 , the frequency offset compensation apparatus 1400 may include a processor 1401 . Optionally, the frequency offset compensation apparatus 1400 may further include a memory 1402 and/or a transceiver 1403 . Wherein, the processor 1401 is coupled with the memory 1402 and the transceiver 1403, such as may be connected through a communication bus.

下面结合图14对频偏补偿装置1400的各个构成部件进行具体的介绍：The components of the frequency offset compensation device 1400 are specifically introduced below in conjunction with FIG. 14 :

其中，处理器1401是频偏补偿装置1400的控制中心，可以是一个处理器，也可以是多个处理元件的统称。例如，处理器1401是一个或多个中央处理器(central processing unit，CPU)，也可以是特定集成电路(application specific integrated circuit，ASIC)，或者是被配置成实施本申请实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)。Wherein, the processor 1401 is the control center of the frequency offset compensation apparatus 1400, and may be one processor, or may be a general term for multiple processing elements. For example, the processor 1401 is one or more central processing units (central processing unit, CPU), may also be a specific integrated circuit (application specific integrated circuit, ASIC), or is configured to implement one or more An integrated circuit, for example: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (field programmable gate array, FPGA).

可选地，处理器1401可以通过运行或执行存储在存储器1402内的软件程序，以及调用存储在存储器1402内的数据，执行频偏补偿装置1400的各种功能。Optionally, the processor 1401 may execute various functions of the frequency offset compensation apparatus 1400 by running or executing software programs stored in the memory 1402 and calling data stored in the memory 1402 .

在具体的实现中，作为一种实施例，处理器1401可以包括一个或多个CPU，例如图14中所示出的CPU0和CPU1。In a specific implementation, as an embodiment, the processor 1401 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 14 .

在具体实现中，作为一种实施例，频偏补偿装置1400也可以包括多个处理器，例如图14中所示的处理器1401和处理器1404。这些处理器中的每一个可以是一个单核处理器(single-CPU)，也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。In a specific implementation, as an embodiment, the frequency offset compensation apparatus 1400 may also include multiple processors, for example, the processor 1401 and the processor 1404 shown in FIG. 14 . Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

其中，所述存储器1402用于存储执行本申请方案的软件程序，并由处理器1401来控制执行，具体实现方式可以参考上述方法实施例，此处不再赘述。Wherein, the memory 1402 is used to store a software program for executing the solution of the present application, and the execution is controlled by the processor 1401 . The specific implementation may refer to the above-mentioned method embodiments, which will not be repeated here.

可选地，存储器1402可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器1402可以和处理器1401集成在一起，也可以独立存在，并通过频偏补偿装置1400的接口电路(图14中未示出)与处理器1401耦合，本申请实施例对此不作具体限定。Optionally, the memory 1402 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, or a random access memory (random access memory, RAM) that can store information and Other types of dynamic storage devices for instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical discs storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and any other medium that can be accessed by a computer, but is not limited to. The memory 1402 can be integrated with the processor 1401 or exist independently, and is coupled to the processor 1401 through an interface circuit (not shown in FIG. 14 ) of the frequency offset compensation device 1400 , which is not specifically limited in this embodiment of the present application.

收发器1403，用于与其他频偏补偿装置之间的通信。例如，频偏补偿装置1400为终端设备，收发器1403可以用于与网络设备通信，或者与另一个终端设备通信。又例如，频偏补偿装置1400为网络设备，收发器1403可以用于与终端设备通信，或者与另一个网络设备通信。The transceiver 1403 is used for communication with other frequency offset compensation devices. For example, the frequency offset compensation apparatus 1400 is a terminal device, and the transceiver 1403 may be used to communicate with a network device or communicate with another terminal device. For another example, the frequency offset compensation apparatus 1400 is a network device, and the transceiver 1403 may be used to communicate with a terminal device or communicate with another network device.

可选地，收发器1403可以包括接收器和发送器(图14中未单独示出)。其中，接收器用于实现接收功能，发送器用于实现发送功能。Optionally, the transceiver 1403 may include a receiver and a transmitter (not separately shown in FIG. 14 ). Wherein, the receiver is used to realize the receiving function, and the transmitter is used to realize the sending function.

可选地，收发器1403可以和处理器1401集成在一起，也可以独立存在，并通过频偏补偿装置1400的接口电路(图14中未示出)与处理器1401耦合，本申请实施例对此不作具体限定。Optionally, the transceiver 1403 may be integrated with the processor 1401, or may exist independently, and be coupled to the processor 1401 through an interface circuit (not shown in FIG. 14 ) of the frequency offset compensation device 1400. This is not specifically limited.

需要说明的是，图14中示出的频偏补偿装置1400的结构并不构成对该频偏补偿装置的限定，实际的频偏补偿装置可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。It should be noted that the structure of the frequency offset compensation device 1400 shown in FIG. 14 does not constitute a limitation to the frequency offset compensation device, and the actual frequency offset compensation device may include more or fewer components than shown in the figure, or Combining certain parts, or different arrangements of parts.

此外，频偏补偿装置1400的技术效果可以参考上述方法实施例所述的频偏补偿方法的技术效果，此处不再赘述。In addition, for the technical effect of the frequency offset compensation apparatus 1400, reference may be made to the technical effect of the frequency offset compensation method described in the foregoing method embodiments, which will not be repeated here.

本申请实施例提供一种通信***。该通信***包括上述一个或多个终端设备，以及一个或多个网络设备。An embodiment of the present application provides a communication system. The communication system includes the above-mentioned one or more terminal devices, and one or more network devices.

应理解，在本申请实施例中的处理器可以是中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that the processor in the embodiment of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，RAM)可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory Access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory Access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

上述实施例，可以全部或部分地通过软件、硬件(如电路)、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。The above-mentioned embodiments may be implemented in whole or in part by software, hardware (such as circuits), firmware, or other arbitrary combinations. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of computer program products. The computer program product comprises one or more computer instructions or computer programs. When the computer instruction or computer program is loaded or executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center that includes one or more sets of available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive.

应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A,B可以是单数或者复数。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系，但也可能表示的是一种“和/或”的关系，具体可参考前后文进行理解。It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone, where A and B can be singular or plural. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship, but it may also indicate an "and/or" relationship. For details, please refer to the context for understanding.

本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .

应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

一种频偏补偿方法，其特征在于，应用于终端设备，所述方法包括：A frequency offset compensation method, characterized in that it is applied to terminal equipment, and the method includes:

获取第一频偏；其中，所述第一频偏为多个候选频偏中，已经成功解码同步信号和广播信道块SSB的候选频偏中的一个；所述多个候选频偏由所述终端设备根据频率间隔确定，且所述多个候选频偏中相邻的两个频偏之间的所述频率间隔小于子载波间隔；Acquire a first frequency offset; wherein, the first frequency offset is one of the candidate frequency offsets that have successfully decoded the synchronization signal and the broadcast channel block SSB among the multiple candidate frequency offsets; the multiple candidate frequency offsets are determined by the The terminal device determines according to the frequency interval, and the frequency interval between two adjacent frequency offsets among the plurality of candidate frequency offsets is smaller than the subcarrier interval;

根据所述第一频偏进行频偏补偿。Perform frequency offset compensation according to the first frequency offset.
根据权利要求1所述的频偏补偿方法，其特征在于，所述获取第一频偏，包括：The frequency offset compensation method according to claim 1, wherein said obtaining the first frequency offset comprises:

根据所述频率间隔获取所述多个候选频偏；Acquire the multiple candidate frequency offsets according to the frequency interval;

根据每个所述候选频偏各自解码所述SSB；Decoding the SSBs individually according to each of the candidate frequency offsets;

将成功解码所述SSB的候选频偏中的一个确定为所述第一频偏。Determining one of the candidate frequency offsets that successfully decode the SSB as the first frequency offset.
根据权利要求2所述的频偏补偿方法，其特征在于，所述将成功解码所述SSB的候选频偏中的一个确定为第一频偏，包括：The frequency offset compensation method according to claim 2, wherein the determining one of the candidate frequency offsets that successfully decode the SSB as the first frequency offset comprises:

将成功解码的所述SSB中，信号质量最好的所述SSB对应的候选频偏确定为第一频偏。Among the successfully decoded SSBs, the candidate frequency offset corresponding to the SSB with the best signal quality is determined as the first frequency offset.
根据权利要求1-3中任一项所述的频偏补偿方法，其特征在于，所述方法还包括：The frequency offset compensation method according to any one of claims 1-3, wherein the method further comprises:

根据所述SSB对应的参考信号获取第二频偏；其中，所述第二频偏小于所述频率间隔；Acquiring a second frequency offset according to a reference signal corresponding to the SSB; wherein, the second frequency offset is smaller than the frequency interval;

所述根据所述第一频偏进行频偏补偿，包括：The performing frequency offset compensation according to the first frequency offset includes:

根据所述第一频偏和所述第二频偏进行频偏补偿。Perform frequency offset compensation according to the first frequency offset and the second frequency offset.
一种频偏补偿方法，其特征在于，应用于终端设备，所述方法包括：A frequency offset compensation method, characterized in that it is applied to terminal equipment, and the method includes:

获取第三频偏；其中，所述第三频偏根据第一星历信息和所述终端设备的位置确定，所述第一星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间；Acquiring a third frequency offset; wherein, the third frequency offset is determined according to the first ephemeris information and the position of the terminal device, and the first ephemeris information includes one or more of the following: the semi-major axis of the satellite, Eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time;

根据所述第三频偏进行下行频偏补偿。Perform downlink frequency offset compensation according to the third frequency offset.
根据权利要求5所述的频偏补偿方法，其特征在于，所述获取第三频偏，包括：The frequency offset compensation method according to claim 5, wherein said obtaining the third frequency offset comprises:

根据所述第一星历信息和所述终端设备的位置获取所述第三频偏。Acquire the third frequency offset according to the first ephemeris information and the location of the terminal device.
根据权利要求6所述的频偏补偿方法，其特征在于，所述方法还包括：The frequency offset compensation method according to claim 6, wherein the method further comprises:

根据所述第三频偏解码SSB。decoding the SSB according to the third frequency offset.
根据权利要求7所述的频偏补偿方法，其特征在于，所述方法还包括：The frequency offset compensation method according to claim 7, wherein the method further comprises:

根据所述SSB对应的参考信号获取第四频偏；其中，所述第四频偏小于所述第三频偏；Acquiring a fourth frequency offset according to a reference signal corresponding to the SSB; wherein, the fourth frequency offset is smaller than the third frequency offset;

所述根据所述第三频偏进行下行频偏补偿，包括：The performing downlink frequency offset compensation according to the third frequency offset includes:

根据所述第三频偏和所述第四频偏进行下行频偏补偿。Perform downlink frequency offset compensation according to the third frequency offset and the fourth frequency offset.
根据权利要求5-8中任一项所述的频偏补偿方法，其特征在于，所述方法还包括：The frequency offset compensation method according to any one of claims 5-8, wherein the method further comprises:

接收辅***信息；其中，所述辅***信息中承载有第二星历信息；receiving secondary system information; wherein, the secondary system information carries second ephemeris information;

根据所述第二星历信息更新所述第一星历信息；所述第二星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。Update the first ephemeris information according to the second ephemeris information; the second ephemeris information includes one or more of the following: semi-major axis, eccentricity, orbital inclination, ascending node right ascension, perigee Argument, mean anomaly and reference time.
一种频偏补偿方法，其特征在于，应用于网络设备，所述方法包括：A frequency offset compensation method, characterized in that it is applied to network equipment, the method comprising:

根据第三星历信息和地理信息获取第五频偏；其中，所述第三星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间；所述地理信息用于指示所述网络设备的覆盖区域的位置；Acquire the fifth frequency offset according to the third ephemeris information and geographical information; wherein, the third ephemeris information includes one or more of the following: semi-major axis, eccentricity, orbital inclination, ascending node right ascension, perigee argument, mean anomaly and reference time; the geographic information is used to indicate the location of the coverage area of the network device;

根据所述第五频偏发送同步信号和下行广播信道块SSB。Sending the synchronization signal and the downlink broadcast channel block SSB according to the fifth frequency offset.
根据权利要求10所述的频偏补偿方法，其特征在于，所述方法还包括：The frequency offset compensation method according to claim 10, wherein the method further comprises:

根据所述第五频偏发送辅***信息或下行控制信令；所述辅***信息用于指示终端设备根据所述第五频偏进行频偏补偿。Send secondary system information or downlink control signaling according to the fifth frequency offset; the secondary system information is used to instruct the terminal device to perform frequency offset compensation according to the fifth frequency offset.
根据权利要求10所述的频偏补偿方法，其特征在于，所述方法还包括：The frequency offset compensation method according to claim 10, wherein the method further comprises:

根据所述第五频偏发送下行信号中，除SSB之外的信号。In the downlink signal, signals other than the SSB are sent according to the fifth frequency offset.
一种频偏补偿方法，其特征在于，应用于网络设备，所述方法包括：A frequency offset compensation method, characterized in that it is applied to network equipment, the method comprising:

获取时间提前量；其中，所述时间提前量与所述网络设备的覆盖区域相关；Acquiring a timing advance; wherein, the timing advance is related to the coverage area of the network device;

发送时间提前量；其中，所述时间提前量用于所述网络设备的覆盖区域内的终端设备向所述网络设备发送信号。Sending a timing advance; wherein, the timing advance is used for a terminal device within the coverage area of the network device to send a signal to the network device.
根据权利要求13所述的频偏补偿方法，其特征在于，所述获取时间提前量，包括：The frequency offset compensation method according to claim 13, wherein said acquiring the timing advance comprises:

根据所述网络设备的位置和所述覆盖区域的位置，获取所述时间提前量。The timing advance is acquired according to the location of the network device and the location of the coverage area.
根据权利要求13或14所述的频偏补偿方法，其特征在于，所述时间提前量承载于如下一项或多项中：辅***信息块、或下行控制信令。The frequency offset compensation method according to claim 13 or 14, wherein the timing advance is carried in one or more of the following: secondary system information block, or downlink control signaling.
一种频偏补偿方法，其特征在于，应用于终端设备，所述方法包括：A frequency offset compensation method, characterized in that it is applied to terminal equipment, and the method includes:

接收时间提前量；其中，所述时间提前量与网络设备的覆盖区域相关；Receive timing advance; wherein, the timing advance is related to the coverage area of the network device;

根据所述时间提前量向所述网络设备发送信号。Sending a signal to the network device according to the timing advance.
根据权利要求16所述的频偏补偿方法，其特征在于，所述时间提前量根据所述网络设备的位置和所述网络设备的覆盖区域的位置确定。The frequency offset compensation method according to claim 16, wherein the timing advance is determined according to the location of the network device and the location of the coverage area of the network device.
根据权利要求16或17所述的频偏补偿方法，其特征在于，所述时间提前量承载于如下一项或多项中：辅***信息块、或下行控制信令。The frequency offset compensation method according to claim 16 or 17, wherein the timing advance is carried in one or more of the following: secondary system information block, or downlink control signaling.
一种频偏补偿方法，其特征在于，所述方法包括：A frequency offset compensation method, characterized in that the method comprises:

获取时间提前量；其中，时间提前量与网络设备的覆盖区域相关；Obtaining a timing advance; wherein, the timing advance is related to the coverage area of the network device;

根据所述时间提前量接收信号。Signals are received according to the timing advance.
根据权利要求19所述的频偏补偿方法，其特征在于，所述获取时间提前量包括：The frequency offset compensation method according to claim 19, wherein said acquiring the timing advance comprises:

根据网络设备的位置和所述网络设备的覆盖区域的位置，获取所述时间提前量。The timing advance is acquired according to the location of the network device and the location of the coverage area of the network device.
根据权利要求19或20所述的频偏补偿方法，其特征在于，所述根据时间提前量接收信号，包括：The frequency offset compensation method according to claim 19 or 20, wherein the receiving the signal according to the time advance comprises:

滞后所述时间提前量接收来自终端设备的信号。The signal from the terminal device is received with a delay of the timing advance.
一种频偏补偿装置，其特征在于，所述装置包括：获取模块和补偿模块；A frequency offset compensation device, characterized in that the device includes: an acquisition module and a compensation module;

所述获取模块，用于获取第一频偏；其中，所述第一频偏为多个候选频偏中，已经成功解码同步信号和广播信道块SSB的候选频偏中的一个；所述多个候选频偏由终端设备根据频率间隔确定，且所述多个候选频偏中相邻的两个频偏之间的所述频率间隔小于子载波间隔；The acquisition module is configured to acquire a first frequency offset; wherein, the first frequency offset is one of the candidate frequency offsets that have successfully decoded the synchronization signal and the broadcast channel block SSB among the multiple candidate frequency offsets; the multiple candidate frequency offsets are determined by the terminal device according to frequency intervals, and the frequency interval between two adjacent frequency offsets among the plurality of candidate frequency offsets is smaller than the subcarrier interval;

所述补偿模块，用于根据所述第一频偏进行频偏补偿。The compensation module is configured to perform frequency offset compensation according to the first frequency offset.
根据权利要求22所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 22, characterized in that,

所述获取模块，用于根据所述频率间隔获取所述多个候选频偏；The obtaining module is configured to obtain the plurality of candidate frequency offsets according to the frequency interval;

所述获取模块，用于根据每个所述候选频偏各自解码所述SSB；The acquisition module is configured to individually decode the SSB according to each of the candidate frequency offsets;

所述获取模块，用于将成功解码所述SSB的候选频偏中的一个确定为所述第一频偏。The obtaining module is configured to determine one of the candidate frequency offsets that successfully decode the SSB as the first frequency offset.
根据权利要求23所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 23, characterized in that,

所述获取模块，用于将成功解码的所述SSB中，信号质量最好的所述SSB对应的候选频偏确定为第一频偏。The obtaining module is configured to determine a candidate frequency offset corresponding to the SSB with the best signal quality among the successfully decoded SSBs as the first frequency offset.
根据权利要求22-24中任一项所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to any one of claims 22-24, characterized in that,

所述获取模块，还用于根据所述SSB对应的参考信号获取第二频偏；其中，所述第二频偏小于所述频率间隔；The acquiring module is further configured to acquire a second frequency offset according to a reference signal corresponding to the SSB; wherein, the second frequency offset is smaller than the frequency interval;

所述补偿模块，用于根据所述第一频偏和所述第二频偏进行频偏补偿。The compensation module is configured to perform frequency offset compensation according to the first frequency offset and the second frequency offset.
一种频偏补偿装置，其特征在于，所述装置包括：获取模块和补偿模块；A frequency offset compensation device, characterized in that the device includes: an acquisition module and a compensation module;

所述获取模块，用于获取第三频偏；其中，所述第三频偏根据第一星历信息和终端设备的位置确定，所述第一星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间；The acquiring module is configured to acquire a third frequency offset; wherein, the third frequency offset is determined according to the first ephemeris information and the position of the terminal device, and the first ephemeris information includes one or more of the following: satellite semi-major axis, eccentricity, orbital inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time;

所述补偿模块，用于根据所述第三频偏进行下行频偏补偿。The compensation module is configured to perform downlink frequency offset compensation according to the third frequency offset.
根据权利要求26所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 26, characterized in that,

所述获取模块，用于根据所述第一星历信息和所述终端设备的位置获取所述第三频偏。The obtaining module is configured to obtain the third frequency offset according to the first ephemeris information and the location of the terminal device.
根据权利要求27所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 27, characterized in that,

所述补偿模块，还用于根据所述第三频偏解码SSB。The compensation module is further configured to decode the SSB according to the third frequency offset.
根据权利要求28所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 28, characterized in that,

所述获取模块，用于根据所述SSB对应的参考信号获取第四频偏；其中，所述第四频偏小于所述第三频偏；The acquiring module is configured to acquire a fourth frequency offset according to a reference signal corresponding to the SSB; wherein, the fourth frequency offset is smaller than the third frequency offset;

所述补偿模块，用于根据所述第三频偏和所述第四频偏进行下行频偏补偿。The compensation module is configured to perform downlink frequency offset compensation according to the third frequency offset and the fourth frequency offset.
根据权利要求26-29中任一项所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to any one of claims 26-29, characterized in that,

所述获取模块，还用于接收辅***信息；其中，所述辅***信息中承载有第二星历信息；The acquiring module is further configured to receive secondary system information; wherein, the secondary system information carries second ephemeris information;

所述获取模块，还用于根据所述第二星历信息更新所述第一星历信息；所述第二星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间。The acquisition module is further configured to update the first ephemeris information according to the second ephemeris information; the second ephemeris information includes one or more of the following: semi-major axis, eccentricity, orbit of the satellite Inclination, right ascension of ascending node, argument of perigee, mean anomaly and reference time.
一种频偏补偿装置，其特征在于，所述装置包括：处理模块和收发模块；A frequency offset compensation device, characterized in that the device includes: a processing module and a transceiver module;

所述处理模块，用于根据第三星历信息和地理信息获取第五频偏；其中，所述第三星历信息包括如下一项或多项：卫星的半长轴、偏心率、轨道倾角、升交点赤经、近地点幅角、平近点角和参考时间；所述地理信息用于指示网络设备的覆盖区域的位置；The processing module is configured to obtain the fifth frequency offset according to the third ephemeris information and geographical information; wherein, the third ephemeris information includes one or more of the following: semi-major axis, eccentricity, and orbital inclination of the satellite , right ascension of ascending node, argument of perigee, mean anomaly and reference time; the geographic information is used to indicate the location of the coverage area of the network device;

所述收发模块，用于根据所述第五频偏发送同步信号和下行广播信道块SSB。The transceiver module is configured to send a synchronization signal and a downlink broadcast channel block SSB according to the fifth frequency offset.
根据权利要求31所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 31, characterized in that,

所述收发模块，还用于根据所述第五频偏发送辅***信息或下行控制信令；所述辅***信息用于指示终端设备根据所述第五频偏进行频偏补偿。The transceiver module is further configured to send secondary system information or downlink control signaling according to the fifth frequency offset; the secondary system information is used to instruct terminal equipment to perform frequency offset compensation according to the fifth frequency offset.
根据权利要求31所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 31, characterized in that,

所述收发模块，还用于根据所述第五频偏发送下行信号中，除SSB之外的信号。The transceiver module is further configured to send signals other than SSB among downlink signals according to the fifth frequency offset.
一种频偏补偿装置，其特征在于，所述装置包括：处理模块和收发模块；A frequency offset compensation device, characterized in that the device includes: a processing module and a transceiver module;

所述处理模块，用于获取时间提前量；其中，所述时间提前量与网络设备的覆盖区域相关；The processing module is configured to acquire a timing advance; wherein, the timing advance is related to a coverage area of a network device;

所述收发模块，用于发送时间提前量；其中，所述时间提前量用于所述网络设备的覆盖区域内的终端设备向所述网络设备发送信号。The transceiver module is configured to send a timing advance; wherein, the timing advance is used for a terminal device within the coverage area of the network device to send a signal to the network device.
根据权利要求34所述的频偏补偿装置，其特征在于，The frequency offset compensation device according to claim 34, wherein:

所述处理模块，用于根据所述网络设备的位置和所述覆盖区域的位置，获取所述时间提前量。The processing module is configured to acquire the timing advance according to the location of the network device and the location of the coverage area.
根据权利要求34或35所述的频偏补偿装置，其特征在于，所述时间提前量承载于如下一项或多项中：辅***信息块、或下行控制信令。The frequency offset compensation device according to claim 34 or 35, wherein the timing advance is carried in one or more of the following: secondary system information block, or downlink control signaling.
一种频偏补偿装置，其特征在于，所述装置包括：接收模块和发送模块；A frequency offset compensation device, characterized in that the device includes: a receiving module and a sending module;

所述接收模块，用于接收时间提前量；其中，所述时间提前量与网络设备的覆盖区域相关；The receiving module is configured to receive a timing advance; wherein, the timing advance is related to the coverage area of the network device;

所述发送模块，用于根据所述时间提前量向所述网络设备发送信号。The sending module is configured to send a signal to the network device according to the timing advance.
根据权利要求37所述的频偏补偿装置，其特征在于，所述时间提前量根据所述网络设备的位置和所述网络设备的覆盖区域的位置确定。The frequency offset compensation device according to claim 37, wherein the timing advance is determined according to the location of the network equipment and the location of the coverage area of the network equipment.
根据权利要求37或38所述的频偏补偿装置，其特征在于，所述时间提前量承载于如下一项或多项中：辅***信息块、或下行控制信令。The frequency offset compensation device according to claim 37 or 38, wherein the timing advance is carried in one or more of the following: secondary system information block, or downlink control signaling.
一种频偏补偿装置，其特征在于，所述装置包括：处理模块和收发模块；A frequency offset compensation device, characterized in that the device includes: a processing module and a transceiver module;

所述处理模块，用于获取时间提前量；其中，所述时间提前量与网络设备的覆盖区域相关；The processing module is configured to acquire a timing advance; wherein, the timing advance is related to a coverage area of a network device;

所述收发模块，用于根据所述时间提前量接收信号。The transceiver module is configured to receive signals according to the timing advance.
根据权利要求40所述的频偏补偿装置，其特征在于，所述处理模块，用于根据网络设备的位置和网络设备的覆盖区域的位置，获取所述时间提前量。The frequency offset compensation device according to claim 40, wherein the processing module is configured to acquire the timing advance according to the location of the network equipment and the location of the coverage area of the network equipment.
根据权利要求40或41所述的频偏补偿装置，其特征在于，所述收发模块，用于滞后所述时间提前量接收来自终端设备的信号。The frequency offset compensation device according to claim 40 or 41, wherein the transceiver module is configured to lag the timing advance amount to receive a signal from a terminal device.
一种频偏补偿装置，其特征在于，包括：处理器，所述处理器与存储器耦合；A frequency offset compensation device, characterized by comprising: a processor coupled to a memory;

所述处理器，用于执行所述存储器中存储的计算机程序，以使得所述频偏补偿装置执行如权利要求1-21中的任一项权利要求所述的频偏补偿方法。The processor is configured to execute the computer program stored in the memory, so that the frequency offset compensation device executes the frequency offset compensation method according to any one of claims 1-21.
一种频偏补偿装置，其特征在于，包括：处理器和接口电路；其中，A frequency offset compensation device, characterized in that it includes: a processor and an interface circuit; wherein,

所述接口电路，用于接收代码指令并传输至所述处理器；The interface circuit is used to receive code instructions and transmit them to the processor;

所述处理器用于运行所述代码指令以执行如权利要求1-4中、或5-9中、或16-18中的任一项权利要求所述的方法。The processor is configured to run the code instructions to execute the method according to any one of claims 1-4, or 5-9, or 16-18.
一种频偏补偿装置，其特征在于，包括：处理器和接口电路；其中，A frequency offset compensation device, characterized in that it includes: a processor and an interface circuit; wherein,

所述接口电路，用于接收代码指令并传输至所述处理器；The interface circuit is used to receive code instructions and transmit them to the processor;

所述处理器用于运行所述代码指令以执行如权利要求10-12中、或13-15中、或19-21中的任一项权利要求所述的方法。The processor is configured to run the code instructions to execute the method according to any one of claims 10-12, or 13-15, or 19-21.
一种频偏补偿装置，其特征在于，所述频偏补偿装置包括处理器和收发器，所述收发器用于所述频偏补偿装置和其他频偏补偿装置之间进行信息交互，所述处理器执行程序指令，用以执行如权利要求1-4中、或5-9中、或16-18中的任一项权利要求所述的频偏补偿方法。A frequency offset compensation device, characterized in that the frequency offset compensation device includes a processor and a transceiver, and the transceiver is used for information exchange between the frequency offset compensation device and other frequency offset compensation devices, and the processing The device executes program instructions to execute the frequency offset compensation method described in any one of claims 1-4, or 5-9, or 16-18.
一种频偏补偿装置，其特征在于，所述频偏补偿装置包括处理器和收发器，所述收发器用于所述频偏补偿装置和其他频偏补偿装置之间进行信息交互，所述处理器执行程序指令，用以执行如权利要求10-12中、或13-15中、或19-21中的任一项权利要求所述的频偏补偿方法。A frequency offset compensation device, characterized in that the frequency offset compensation device includes a processor and a transceiver, and the transceiver is used for information exchange between the frequency offset compensation device and other frequency offset compensation devices, and the processing The device executes program instructions to execute the frequency offset compensation method described in any one of claims 10-12, 13-15, or 19-21.
一种通信***，其特征在于，所述通信***包括权利要求22-25中、26-30中、37-39中、44或46中任一项权利要求所述的频偏补偿装置，以及权利要求31-33中、34-36中、40-42中、45或47中任一项权利要求所述的频偏补偿装置。A communication system, characterized in that the communication system includes the frequency offset compensation device described in any one of claims 22-25, 26-30, 37-39, 44 or 46, and the The frequency offset compensation device described in any one of claims 31-33, 34-36, 40-42, 45 or 47.
一种计算机可读存储介质，其特征在于，所述计算机可读存储介质包括计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得所述计算机执行如权利要求1-21中的任一项权利要求所述的频偏补偿方法。A computer-readable storage medium, characterized in that the computer-readable storage medium includes a computer program or instruction, and when the computer program or instruction is run on a computer, the computer executes the computer program described in claims 1-21. The frequency offset compensation method described in any one of the claims.
一种计算机程序产品，其特征在于，所述计算机程序产品包括：计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得所述计算机执行如权利要求1-21中的中任一项权利要求所述的频偏补偿方法。A computer program product, characterized in that the computer program product includes: a computer program or instruction, when the computer program or instruction is run on a computer, the computer is made to perform any of the following claims 1-21. The frequency offset compensation method described in one claim.