CN116406498A - A communication method and device - Google Patents
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Abstract
本申请公开了一种通信方法及装置,该方法包括:确定第一信号;其中,所述第一信号包括主同步信号PSS、辅同步信号SSS和物理广播信道PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;发送所述第一信号。
The present application discloses a communication method and device. The method includes: determining a first signal; wherein, the first signal includes a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical broadcast channel PBCH; the PSS, the SSS The PBCH and the PBCH are located in different symbols in the time domain; the SSS is adjacent to the PSS, or the SSS and the PSS are separated by at least 2 symbols in the time domain; and the first signal is sent.
Description
本申请涉及无线通信技术领域,尤其涉及一种通信方法及装置。The present application relates to the technical field of wireless communication, and in particular to a communication method and device.
在现有的第五代移动通信技术(the 5th generation,5G)新无线(new radio,NR)系统中,终端设备可以通过接收同步信号和PBCH块(synchronization signal and PBCH block,SSB)来实现与基站的同步,以及获取系统消息等。其中,主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)和物理广播信道(physical broadcast channel,PBCH)共同构成一个SSB。如图1所示,在时域上,1个SSB占用4个正交频分复用(orthogonal frequency division multiplexing,OFDM)符号(symbol),为符号0~符号3,在频域上,1个SSB占用20个资源块(resource block,RB),也就是240个子载波,在这20个RB内,子载波编号为0~239。PSS位于符号0对应的127个子载波上,SSS位于符号2对应的127个子载波上。In the existing fifth generation mobile communication technology (the 5th generation, 5G) new radio (new radio, NR) system, the terminal device can realize the synchronization signal and PBCH block (SSB) by receiving the synchronization signal and PBCH block Synchronization of base stations, and acquisition of system information, etc. Wherein, a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS), and a physical broadcast channel (physical broadcast channel, PBCH) together constitute an SSB. As shown in Figure 1, in the time domain, 1 SSB occupies 4 orthogonal frequency division multiplexing (OFDM) symbols (symbols), which are
目前的一个SSB在频域上占用20个RB,其SSB占用的带宽太大,无法兼容窄带终端设备的SSB接入。A current SSB occupies 20 RBs in the frequency domain, and the bandwidth occupied by the SSB is too large to be compatible with the SSB access of the narrowband terminal equipment.
发明内容Contents of the invention
本申请提供一种通信方法及装置,用以解决现有技术中的SSB不适用窄带终端设备的问题。The present application provides a communication method and device to solve the problem in the prior art that SSB is not applicable to narrowband terminal equipment.
第一方面,本申请提供一种通信方法,该方法可由第一通信装置执行,例如,第一通信装置为网络设备。第一通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如芯片。该方法包括:确定第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;发送所述第一信号。In a first aspect, the present application provides a communication method, which can be executed by a first communication device, for example, the first communication device is a network device. The first communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip. The method includes: determining a first signal; wherein, the first signal includes PSS, SSS, and PBCH; the PSS, the SSS, and the PBCH are located in different symbols in the time domain; the SSS and the PSS Adjacent, or, the SSS and the PSS are separated by at least 2 symbols in the time domain; sending the first signal.
通过上述方法,网络设备确定的第一信号中,SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号,从而,使得窄带终端设备可以基于第一信号中SSS和PSS的相对位置,确定第一信号为窄带终端设备对应的SSB信号。避免NR中的其他非窄带终端设备检出该第一信号的SSS所导致的宽带终端设备和其他NR系统中的非窄带终端设备的误接入。Through the above method, in the first signal determined by the network device, the SSS is adjacent to the PSS, or the interval between the SSS and the PSS is at least 2 symbols in the time domain, so that the narrowband terminal device can be based on the first The relative positions of the SSS and the PSS in the signal determine that the first signal is the SSB signal corresponding to the narrowband terminal device. Misaccess of the broadband terminal device and the non-narrowband terminal device in other NR systems caused by the detection of the SSS of the first signal by other non-narrowband terminal devices in NR is avoided.
一种可能的实现方式,所述第一信号在时域上包括6个符号。In a possible implementation manner, the first signal includes 6 symbols in the time domain.
通过上述方法,可以保证本申请实施例中对应窄带终端设备的SSB中的PBCH在时域上占用足够的符号,从而保证NR中窄带终端设备和NR终端设备达到相同的覆盖。Through the above method, it can be ensured that the PBCH in the SSB corresponding to the narrowband terminal device in the embodiment of the present application occupies enough symbols in the time domain, so as to ensure that the narrowband terminal device in NR and the NR terminal device achieve the same coverage.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第二个符号,所述PBCH在时域上位于第三个至第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the second symbol in the time domain, and the PBCH is located in the third to sixth symbols in the time domain.
通过该方法,可以使得PBCH的配置比较均匀,从而,对于SSB信号的整体峰均比都可以设置的更为均衡。可以降低对终端设备对检测SSB的要求,提高SSB的适用性。Through this method, the configuration of the PBCH can be relatively uniform, so that the overall peak-to-average ratio of the SSB signal can be set to be more balanced. It can reduce the requirement for terminal equipment to detect SSB, and improve the applicability of SSB.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第四个符号,所述PBCH在时域上位于第二个符号、第三个符号、第五个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fourth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fifth symbol and the sixth symbol.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第五个符号,所述PBCH在时域上位于第二个符号、第三个符号、第四个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fifth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fourth symbol, and the sixth symbol.
通过上述方法,可以提高窄带SSB的设计的灵活性,以适用更多的窄带终端设备的应用场景。Through the above method, the design flexibility of the narrowband SSB can be improved, so as to be applicable to more application scenarios of the narrowband terminal equipment.
一种可能的实现方式,所述PSS的序列是根据第一序列生成的;所述第一序列中包括第一移位值和第二移位值;其中,所述第一移位值为小于43的正整数;所述第二移位值是根据所述PSS的编号确定的,所述PSS的编号用于确定小区标识。In a possible implementation manner, the sequence of the PSS is generated according to the first sequence; the first sequence includes a first shift value and a second shift value; wherein the first shift value is less than A positive integer of 43; the second shift value is determined according to the number of the PSS, and the number of the PSS is used to determine a cell identity.
通过将PSS序列中额外增加第一移位值,以区分NR中的SSB中的PSS信号。从而,可以NR终端设备在盲检PSS时,就可以在无法盲检出本申请实施例中的窄带PSS。相对应的,窄带终端设备可以基于盲检到的窄带PSS,可以确定该SSB信号为窄带终端设备对应的SSB,从而进一步降低NR非窄带终端设备的误检,减少NR非窄带终端设备的功耗。The PSS signal in the SSB in the NR is distinguished by additionally adding the first shift value to the PSS sequence. Therefore, when the NR terminal device blindly detects the PSS, it cannot blindly detect the narrowband PSS in the embodiment of the present application. Correspondingly, the narrowband terminal device can determine that the SSB signal is the SSB corresponding to the narrowband terminal device based on the blindly detected narrowband PSS, thereby further reducing the false detection of NR non-narrowband terminal devices and reducing the power consumption of NR non-narrowband terminal devices .
一种可能的实现方式,所述PSS的序列d k(n)满足: A possible implementation manner, the sequence d k (n) of the PSS satisfies:
d k(n)=1-2x(m) d k (n) = 1-2x (m)
其中,x(m)为第一序列;mod表示取模操作;n为小于127的正整数;所述K表示第一移位值; 的取值范围为{0,1,2},所述 表示PSS的编号;所述第二移位值是根据所述 确定。 Wherein, x(m) is the first sequence; mod represents a modulo operation; n is a positive integer less than 127; the K represents the first shift value; The value range of is {0,1,2}, the Indicates the number of the PSS; the second shift value is based on the Sure.
一种可能的实现方式,所述PBCH占用的频域位置与主所述PSS、所述SSS占用的频域位置相同;或者,所述PBCH占用的频域位置包括所述PSS和所述SSS占用的频域位置。A possible implementation manner, the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the main PSS and the SSS; or, the frequency domain position occupied by the PBCH includes the PSS and the SSS occupied frequency domain location.
通过上述方法,相比现有技术中的PBCH,第一信号的PBCH占用的频域带宽降低,可以更好的适应窄带终端设备及窄带物联网的场景。Through the above method, compared with the PBCH in the prior art, the frequency domain bandwidth occupied by the PBCH of the first signal is reduced, which can better adapt to scenarios of narrowband terminal equipment and narrowband Internet of Things.
一种可能的实现方式,所述PBCH在频域上占用的子载波数目为以下至少一项:144,72,或者121。In a possible implementation manner, the number of subcarriers occupied by the PBCH in the frequency domain is at least one of the following: 144, 72, or 121.
第二方面,本申请提供一种通信方法,该方法可由第二通信装置执行。第二通信装置可以是通信设备或能够支持通信设备实现该方法所需的功能的通信装置,例如,窄带终端设备或芯片。示例性地,当该通信方法应用于车辆时,所述第一通信装置可以为车载设备,或者为设置在车载设备中的用于实现车载设备的功能的芯片,或者为用于实现车载设备的功能的其他部件。也可以为窄带终端设备,或者为设置在窄带终端设备中的用于实现窄带终端设备的功能的芯片,或者为用于实现窄带终端设备的功能的其他部件。In a second aspect, the present application provides a communication method, which can be executed by a second communication device. The second communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, for example, a narrowband terminal device or a chip. Exemplarily, when the communication method is applied to a vehicle, the first communication device may be a vehicle-mounted device, or a chip set in the vehicle-mounted device to realize the functions of the vehicle-mounted device, or a chip used to realize the functions of the vehicle-mounted device Other parts of the function. It may also be a narrowband terminal device, or a chip provided in the narrowband terminal device for realizing the functions of the narrowband terminal device, or be other components for realizing the functions of the narrowband terminal device.
该方法包括:接收第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS在时域上相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;根据接收的所述第一信号进行时频同步和/或获取系统消息。The method includes: receiving a first signal; wherein, the first signal includes PSS, SSS, and PBCH; the PSS, the SSS, and the PBCH are located in different symbols in the time domain; the SSS and the PSS adjacent in the time domain, or the SSS and the PSS are separated by at least 2 symbols in the time domain; perform time-frequency synchronization and/or acquire system information according to the received first signal.
通过上述方法,可以使得窄带终端设备,基于第一信号中的SSS与所述PSS在时域上相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号,确定第一信号为窄带终端设备对应的SSB信号,进而,通过第一信号进行时频同步和/或获取系统消息。避免NR中的其他非窄带终端设备检出该第一信号的SSS所导致的宽带终端设备和其他NR系统中 的非窄带终端设备的误接入。Through the above method, the narrowband terminal device can determine the first signal based on the fact that the SSS in the first signal is adjacent to the PSS in the time domain, or that the SSS and the PSS are separated by at least 2 symbols in the time domain. The signal is an SSB signal corresponding to the narrowband terminal device, and further, the first signal is used to perform time-frequency synchronization and/or acquire system information. Avoiding wrong access of broadband terminal equipment and non-narrowband terminal equipment in other NR systems caused by other non-narrowband terminal equipment in NR detecting the SSS of the first signal.
一种可能的实现方式,所述第一信号在时域上包括6个符号。In a possible implementation manner, the first signal includes 6 symbols in the time domain.
通过上述方法,可以保证本申请实施例中对应窄带终端设备的SSB中的PBCH占用足够的时间单元,从而保证NR中窄带终端设备和NR终端设备达到相同的覆盖。Through the above method, it can be ensured that the PBCH in the SSB corresponding to the narrowband terminal device in the embodiment of the present application occupies enough time units, so as to ensure that the narrowband terminal device in NR and the NR terminal device achieve the same coverage.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第二个符号,所述PBCH在时域上位于第三个至第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the second symbol in the time domain, and the PBCH is located in the third to sixth symbols in the time domain.
通过该方法,可以使得PBCH的配置比较均匀,从而,对于SSB信号的整体峰均比都可以设置的更为均衡。可以降低对终端设备对检测SSB的要求,提高SSB的适用性。Through this method, the configuration of the PBCH can be relatively uniform, so that the overall peak-to-average ratio of the SSB signal can be set to be more balanced. It can reduce the requirement for terminal equipment to detect SSB, and improve the applicability of SSB.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第四个符号,所述PBCH在时域上位于第二个符号、第三个符号、第五个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fourth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fifth symbol and the sixth symbol.
通过上述方法,第一信号在时域占用更多的OFDM符号,通过时域上的扩展,保证NR中窄带终端设备和NR终端设备达到相同的覆盖的同时,避免NR终端设备在第一信号上误接入,可以降低NR非窄带终端设备对SSS的误检,从而减少非窄带终端设备的功耗。Through the above method, the first signal occupies more OFDM symbols in the time domain, and through the expansion in the time domain, it is ensured that the narrowband terminal equipment in NR and the NR terminal equipment achieve the same coverage, and the NR terminal equipment is prevented from being on the first signal. Wrong access can reduce the false detection of SSS by NR non-narrowband terminal equipment, thereby reducing the power consumption of non-narrowband terminal equipment.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第五个符号,所述PBCH在时域上位于第二个符号、第三个符号、第四个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fifth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fourth symbol, and the sixth symbol.
通过上述方法,可以提高窄带SSB的设计的灵活性,以适用更多的窄带终端设备的应用场景。Through the above method, the design flexibility of the narrowband SSB can be improved, so as to be applicable to more application scenarios of the narrowband terminal equipment.
一种可能的实现方式,所述PSS的序列是根据第一序列生成的;所述第一序列中包括第一移位值和第二移位值;其中,所述第一移位值为小于43的正整数;所述第二移位值为根据所述PSS的编号确定的,所述PSS的编号用于确定小区标识。In a possible implementation manner, the sequence of the PSS is generated according to the first sequence; the first sequence includes a first shift value and a second shift value; wherein the first shift value is less than A positive integer of 43; the second shift value is determined according to the number of the PSS, and the number of the PSS is used to determine a cell identity.
通过将PSS序列中额外增加一个移位值,以区分NR中的SSB中的PSS信号。从而,可以NR终端设备在盲检PSS时,就可以在无法盲检出本申请实施例中的窄带PSS。相对应的,窄带终端设备可以基于盲检到的窄带PSS,可以确定该SSB信号为窄带终端设备对应的SSB,从而进一步降低NR非窄带终端设备的误检,减少NR非窄带终端设备的功耗。By adding an additional shift value to the PSS sequence, the PSS signal in the SSB in the NR is distinguished. Therefore, when the NR terminal device blindly detects the PSS, it cannot blindly detect the narrowband PSS in the embodiment of the present application. Correspondingly, the narrowband terminal device can determine that the SSB signal is the SSB corresponding to the narrowband terminal device based on the blindly detected narrowband PSS, thereby further reducing the false detection of NR non-narrowband terminal devices and reducing the power consumption of NR non-narrowband terminal devices .
一种可能的实现方式,所述PSS的序列d k(n)满足: A possible implementation manner, the sequence d k (n) of the PSS satisfies:
d k(n)=1-2x(m) d k (n) = 1-2x (m)
其中,所述x(m)为所述第一序列;mod表示取模操作;n为小于127的正整数;所述K为所述第一移位值;所述 的取值范围为{0,1,2},所述 表示PSS的编号;所述第二移位值为根据所述 确定的。 Wherein, the x(m) is the first sequence; mod represents a modulo operation; n is a positive integer less than 127; the K is the first shift value; the The value range of is {0,1,2}, the Indicates the number of the PSS; the second shift value is based on the definite.
一种可能的实现方式,所述PBCH占用的频域位置与所述PSS、所述SSS占用的频域位置相同;或者,所述PBCH占用的频域位置包括所述PSS和所述SSS占用的频域位置。A possible implementation manner, the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the PSS and the SSS; or, the frequency domain position occupied by the PBCH includes the frequency domain position occupied by the PSS and the SSS frequency domain location.
通过上述方法,相比现有技术中的PBCH,第一信号的PBCH占用的频域带宽降低,可以更好的适应窄带终端设备及窄带物联网的场景。Through the above method, compared with the PBCH in the prior art, the frequency domain bandwidth occupied by the PBCH of the first signal is reduced, which can better adapt to scenarios of narrowband terminal equipment and narrowband Internet of Things.
一种可能的实现方式,所述PBCH在频域上占用的子载波的数目为以下一项:144,72,或121。In a possible implementation manner, the number of subcarriers occupied by the PBCH in the frequency domain is one of the following: 144, 72, or 121.
第三方面,本申请提供一种通信装置,例如该通信装置为如前所述的第一通信装置。所述第一通信装置用于执行上述第一方面或任一可能的实施方式中的方法。具体地,所述 第一通信装置可以包括用于执行第一方面或任一可能的实施方式中的方法的模块,例如包括处理模块和收发模块。In a third aspect, the present application provides a communication device, for example, the communication device is the aforementioned first communication device. The first communication device is configured to execute the method in the foregoing first aspect or any possible implementation manner. Specifically, the first communication device may include a module for executing the method in the first aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
示例性地,收发模块可以包括发送模块和接收模块,发送模块和接收模块可以是不同的功能模块,或者也可以是同一个功能模块,但能够实现不同的功能(发送模块用于实现发送信号的功能,接收模块用于实现接收信号的功能)。示例性地,所述第一通信装置为通信设备,或者为设置在通信设备中的芯片或其他部件。示例性地,所述通信设备为网络设备,或者可以是设置在网络设备中的芯片或其他部件。例如,所述收发模块也可以通过收发器实现,所述处理模块也可以通过处理器实现。或者,发送模块可以通过发送器实现,接收模块可以通过接收器实现,发送器和接收器可以是不同的功能模块,或者也可以是同一个功能模块,但能够实现不同的功能(发送器用于实现发送信号的功能,接收器用于实现接收信号的功能)。如果第一通信装置为通信设备,收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者,如果第一通信装置为设置在通信设备中的芯片,那么收发器(或,发送器和接收器)例如为芯片中的通信接口(或者说,是接口电路),该通信接口与通信设备中的射频收发组件连接,以通过射频收发组件实现信息的收发。在第三方面的介绍过程中,继续以所述处理模块和所述收发模块为例进行介绍。以通信装置为第一通信装置为例,其中,Exemplarily, the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may be the same functional module, but can realize different functions (the sending module is used to realize the function, the receiving module is used to realize the function of receiving signals). Exemplarily, the first communication device is a communication device, or is a chip or other components provided in the communication device. Exemplarily, the communication device is a network device, or may be a chip or other components set in the network device. For example, the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor. Or, the sending module can be realized by a transmitter, and the receiving module can be realized by a receiver, and the transmitter and the receiver can be different functional modules, or can be the same functional module, but can realize different functions (the transmitter is used to realize The function of sending a signal, and the receiver is used to realize the function of receiving a signal). If the first communication device is a communication device, the transceiver is implemented by, for example, an antenna, a feeder, and a codec in the communication device. Or, if the first communication device is a chip set in the communication device, then the transceiver (or, transmitter and receiver) is, for example, a communication interface (or in other words, an interface circuit) in the chip, and the communication interface and the communication device The radio frequency transceiver component in the radio frequency transceiver component is connected to realize information transmission and reception through the radio frequency transceiver component. During the introduction of the third aspect, continue to use the processing module and the transceiver module as examples for introduction. Taking the communication device as the first communication device as an example, wherein,
处理模块,用于确定第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;A processing module, configured to determine a first signal; wherein, the first signal includes PSS, SSS, and PBCH; the PSS, the SSS, and the PBCH are located in different symbols in the time domain; the SSS and the The PSSs are adjacent, or the SSS and the PSS are separated by at least 2 symbols in the time domain;
收发模块,用于发送所述第一信号。A transceiver module, configured to send the first signal.
第四方面,本申请提供一种通信装置,例如该通信装置为如前所述的第二通信装置。所述第二通信装置用于执行上述第二方面或任一可能的实施方式中的方法。具体地,所述第二通信装置可以包括用于执行第二方面或任一可能的实施方式中的方法的模块,例如包括处理模块和收发模块。In a fourth aspect, the present application provides a communication device, for example, the communication device is the aforementioned second communication device. The second communication device is configured to execute the method in the foregoing second aspect or any possible implementation manner. Specifically, the second communications device may include modules for executing the method in the second aspect or any possible implementation manner, for example, including a processing module and a transceiver module.
示例性地,收发模块可以包括发送模块和接收模块,发送模块和接收模块可以是不同的功能模块,或者也可以是同一个功能模块,但能够实现不同的功能(发送模块用于实现发送信号的功能,接收模块用于实现接收信号的功能)。示例性地,所述第二通信装置为通信设备,或者为设置在通信设备中的芯片或其他部件。示例性地,所述通信设备为窄带终端设备,或者可以是设置在窄带终端设备中的芯片或其他部件。例如,所述收发模块也可以通过收发器实现,所述处理模块也可以通过处理器实现。或者,发送模块可以通过发送器实现,接收模块可以通过接收器实现,发送器和接收器可以是不同的功能模块,或者也可以是同一个功能模块,但能够实现不同的功能(发送器用于实现发送信号的功能,接收器用于实现接收信号的功能)。如果第一通信装置为通信设备,收发器例如通过通信设备中的天线、馈线和编解码器等实现。或者,如果第一通信装置为设置在通信设备中的芯片,那么收发器(或,发送器和接收器)例如为芯片中的通信接口(或者说,是接口电路),该通信接口与通信设备中的射频收发组件连接,以通过射频收发组件实现信息的收发。在第四方面的介绍过程中,继续以所述处理模块和所述收发模块为例进行介绍。以通信装置为第二通信装置为例,其中,Exemplarily, the transceiver module may include a sending module and a receiving module, and the sending module and the receiving module may be different functional modules, or may be the same functional module, but can realize different functions (the sending module is used to realize the function, the receiving module is used to realize the function of receiving signals). Exemplarily, the second communication device is a communication device, or is a chip or other components provided in the communication device. Exemplarily, the communication device is a narrowband terminal device, or may be a chip or other components set in the narrowband terminal device. For example, the transceiver module may also be implemented by a transceiver, and the processing module may also be implemented by a processor. Or, the sending module can be realized by a transmitter, and the receiving module can be realized by a receiver, and the transmitter and the receiver can be different functional modules, or can be the same functional module, but can realize different functions (the transmitter is used to realize The function of sending a signal, and the receiver is used to realize the function of receiving a signal). If the first communication device is a communication device, the transceiver is implemented by, for example, an antenna, a feeder, and a codec in the communication device. Or, if the first communication device is a chip set in the communication device, then the transceiver (or, transmitter and receiver) is, for example, a communication interface (or in other words, an interface circuit) in the chip, and the communication interface and the communication device The radio frequency transceiver component in the radio frequency transceiver component is connected to realize information transmission and reception through the radio frequency transceiver component. During the introduction of the fourth aspect, continue to use the processing module and the transceiver module as examples for introduction. Taking the communication device as the second communication device as an example, wherein,
收发模块,用于接收第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS在时域上相 邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;A transceiver module, configured to receive a first signal; wherein, the first signal includes PSS, SSS, and PBCH; the PSS, the SSS, and the PBCH are located in different symbols in the time domain; the SSS and the The PSSs are adjacent in the time domain, or the SSS and the PSS are separated by at least 2 symbols in the time domain;
处理模块,用于根据接收的所述第一信号进行时频同步和/或获取系统消息。A processing module, configured to perform time-frequency synchronization and/or acquire system information according to the received first signal.
第五方面,提供一种通信装置,该通信装置例如为如前所述的第一通信装置。该通信装置包括处理器和通信接口(或者,接口电路),通信接口可用于与其他装置或设备进行通信。可选的,还可以包括存储器,用于存储计算机指令。处理器和存储器相互耦合,用于实现上述第一方面或各种可能的实施方式所描述的方法。或者,第一通信装置也可以不包括存储器,存储器可以位于第一通信装置外部。处理器、存储器和通信接口相互耦合,用于实现上述第一方面或各种可能的实施方式所描述的方法。例如,当处理器执行所述存储器存储的计算机指令时,使第一通信装置执行上述第一方面或任意一种可能的实施方式中的方法。示例性地,所述第一通信装置为通信设备,或者为设置在通信设备中的芯片或其他部件。示例性地,所述通信设备为网络设备。例如,第一通信装置可以是接入网设备,或者可以是设置在接入网设备中的芯片或其他部件。In a fifth aspect, a communication device is provided, for example, the first communication device as described above. The communication device includes a processor and a communication interface (or interface circuit), and the communication interface can be used to communicate with other devices or equipment. Optionally, a memory may also be included for storing computer instructions. The processor and the memory are coupled to each other, and are used to implement the method described in the foregoing first aspect or various possible implementation manners. Alternatively, the first communication device may not include a memory, and the memory may be located outside the first communication device. The processor, the memory, and the communication interface are coupled to each other, and are used to implement the method described in the foregoing first aspect or various possible implementation manners. For example, when the processor executes the computer instructions stored in the memory, the first communication device is caused to execute the method in the above first aspect or any possible implementation manner. Exemplarily, the first communication device is a communication device, or is a chip or other components provided in the communication device. Exemplarily, the communication device is a network device. For example, the first communication device may be an access network device, or may be a chip or other components provided in the access network device.
其中,如果第一通信装置为通信设备,通信接口例如通过所述通信设备中的收发器(或者,发送器和接收器)实现,例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者,如果第一通信装置为设置在通信设备中的芯片,那么通信接口例如为芯片的输入/输出接口,例如输入/输出管脚等,该通信接口与通信设备中的射频收发组件连接,以通过射频收发组件实现信息的收发。Wherein, if the first communication device is a communication device, the communication interface is implemented, for example, through a transceiver (or, a transmitter and a receiver) in the communication device, for example, the transceiver is implemented through an antenna, a feeder and a Implementation of codecs, etc. Alternatively, if the first communication device is a chip set in the communication device, the communication interface is, for example, an input/output interface of the chip, such as an input/output pin, etc., and the communication interface is connected to the radio frequency transceiver component in the communication device, so as to The sending and receiving of information is realized through the radio frequency sending and receiving component.
第六方面,提供一种通信装置,该通信装置例如为如前所述的第二通信装置。该通信装置包括处理器和通信接口(或者,接口电路),通信接口可用于与其他装置或设备进行通信。可选的,还可以包括存储器,用于存储计算机指令。处理器和存储器相互耦合,用于实现上述第二方面或各种可能的实施方式所描述的方法。或者,第二通信装置也可以不包括存储器,存储器可以位于第二通信装置外部。处理器、存储器和通信接口相互耦合,用于实现上述第二方面或各种可能的实施方式所描述的方法。例如,当处理器执行所述存储器存储的计算机指令时,使第二通信装置执行上述第二方面或任意一种可能的实施方式中的方法。示例性地,所述第二通信装置为通信设备,或者为设置在通信设备中的芯片或其他部件。示例性地,所述通信设备为窄带终端设备,或者为车载设备等。例如,第二通信装置可以是窄带终端设备,或者可以是设置在窄带终端设备中的芯片或其他部件。In a sixth aspect, a communication device is provided, for example, the second communication device as described above. The communication device includes a processor and a communication interface (or interface circuit), and the communication interface can be used to communicate with other devices or equipment. Optionally, a memory may also be included for storing computer instructions. The processor and the memory are coupled to each other, and are used to implement the method described in the above second aspect or various possible implementation manners. Alternatively, the second communication device may not include a memory, and the memory may be located outside the second communication device. The processor, the memory, and the communication interface are coupled to each other, and are used to implement the method described in the above second aspect or various possible implementation manners. For example, when the processor executes the computer instructions stored in the memory, the second communication device is caused to execute the method in the above second aspect or any possible implementation manner. Exemplarily, the second communication device is a communication device, or is a chip or other components provided in the communication device. Exemplarily, the communication device is a narrowband terminal device, or a vehicle-mounted device. For example, the second communication device may be a narrowband terminal device, or may be a chip or other components provided in the narrowband terminal device.
其中,如果第二通信装置为通信设备,通信接口例如通过所述通信设备中的收发器(或者,发送器和接收器)实现,例如所述收发器通过所述通信设备中的天线、馈线和编解码器等实现。或者,如果第二通信装置为设置在通信设备中的芯片,那么通信接口例如为芯片的输入/输出接口,例如输入/输出管脚等,该通信接口与通信设备中的射频收发组件连接,以通过射频收发组件实现信息的收发。Wherein, if the second communication device is a communication device, the communication interface is implemented, for example, by a transceiver (or, a transmitter and a receiver) in the communication device, for example, the transceiver is implemented by an antenna, a feeder and a receiver in the communication device. Implementation of codecs, etc. Alternatively, if the second communication device is a chip set in the communication device, the communication interface is, for example, an input/output interface of the chip, such as an input/output pin, etc., and the communication interface is connected to the radio frequency transceiver component in the communication device to The sending and receiving of information is realized through the radio frequency sending and receiving component.
第七方面,提供一种芯片,所述芯片包括处理器和通信接口,所述处理器与所述通信接口耦合,用于实现上述第一方面或任一种可选的实施方式所提供的方法。In a seventh aspect, there is provided a chip, the chip includes a processor and a communication interface, the processor is coupled to the communication interface, and is used to implement the method provided in the above first aspect or any optional implementation manner .
可选的,所述芯片还可以包括存储器,例如,所述处理器可以读取并执行所述存储器所存储的软件程序,以实现上述第一方面或任一种可选的实施方式所提供的方法。或者,所述存储器也可以不包括在所述芯片内,而是位于所述芯片外部,相当于,所述处理器可以读取并执行外部存储器所存储的软件程序,以实现上述第一方面或任一种可选的实施方式所提供的方法。Optionally, the chip may further include a memory, for example, the processor may read and execute a software program stored in the memory, so as to realize the above-mentioned first aspect or any optional implementation mode provided method. Alternatively, the memory may not be included in the chip, but located outside the chip, that is, the processor may read and execute the software program stored in the external memory, so as to realize the above-mentioned first aspect or The method provided by any optional embodiment.
第八方面,提供一种芯片,所述芯片包括处理器和通信接口,所述处理器与所述通信 接口耦合,用于实现上述第二方面或任一种可选的实施方式所提供的方法。In an eighth aspect, there is provided a chip, the chip includes a processor and a communication interface, the processor is coupled to the communication interface, and is used to implement the method provided in the above second aspect or any optional implementation manner .
可选的,所述芯片还可以包括存储器,例如,所述处理器可以读取并执行所述存储器所存储的软件程序,以实现上述第二方面或任一种可选的实施方式所提供的方法。或者,所述存储器也可以不包括在所述芯片内,而是位于所述芯片外部,相当于,所述处理器可以读取并执行外部存储器所存储的软件程序,以实现上述第二方面或任一种可选的实施方式所提供的方法。Optionally, the chip may further include a memory, for example, the processor may read and execute a software program stored in the memory, so as to realize the above-mentioned second aspect or any optional implementation mode provided method. Alternatively, the memory may not be included in the chip, but located outside the chip, that is, the processor may read and execute the software program stored in the external memory, so as to realize the above-mentioned second aspect or The method provided by any optional embodiment.
第九方面,提供一种通信系统,该通信系统包括第三方面所述的通信装置、第五方面所述的通信装置或第七方面所述的通信装置,以及包括第四方面所述的通信装置、第六方面所述的通信装置或第八方面所述的通信装置。A ninth aspect provides a communication system, the communication system includes the communication device described in the third aspect, the communication device described in the fifth aspect, or the communication device described in the seventh aspect, and includes the communication device described in the fourth aspect device, the communication device according to the sixth aspect, or the communication device according to the eighth aspect.
第十方面,提供一种计算机可读存储介质,所述计算机可读存储介质用于存储计算机程序,当所述计算机程序在计算机上运行时,使得所述计算机执行上述第一方面或任意一种可能的实施方式中所述的方法。In a tenth aspect, a computer-readable storage medium is provided, the computer-readable storage medium is used to store a computer program, and when the computer program runs on a computer, the computer executes the first aspect or any one of the above-mentioned The methods described in the possible implementations.
第十一方面,提供一种计算机可读存储介质,所述计算机可读存储介质用于存储计算机程序,当所述计算机程序在计算机上运行时,使得所述计算机执行上述第二方面或任意一种可能的实施方式中所述的方法。In an eleventh aspect, a computer-readable storage medium is provided, the computer-readable storage medium is used for storing a computer program, and when the computer program is run on a computer, the computer is made to perform the above-mentioned second aspect or any one of the following. method described in a possible implementation.
第十二方面,提供一种包含指令的计算机程序产品,所述计算机程序产品用于存储计算机程序,当所述计算机程序在计算机上运行时,使得所述计算机执行上述第一方面或的任意一种可能的实施方式中所述的方法。In a twelfth aspect, there is provided a computer program product containing instructions, the computer program product is used to store a computer program, and when the computer program is run on a computer, it causes the computer to execute any one of the above first aspect or method described in a possible implementation.
第十三方面,提供一种包含指令的计算机程序产品,所述计算机程序产品用于存储计算机程序,当所述计算机程序在计算机上运行时,使得所述计算机执行上述第二方面或的任意一种可能的实施方式中所述的方法。In a thirteenth aspect, there is provided a computer program product containing instructions, the computer program product is used to store a computer program, and when the computer program runs on a computer, the computer executes any one of the above-mentioned second aspect or method described in a possible implementation.
图1为现有技术中的SSB设计的一示意图;Fig. 1 is a schematic diagram of SSB design in the prior art;
图2为本申请实施例提供的通信系统的一示意图;FIG. 2 is a schematic 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通信系统的一示意图;FIG. 3 is a schematic diagram of a communication system provided by an embodiment of the present application;
图4为本申请实施例提供的通信方法流程的一示意图;FIG. 4 is a schematic diagram of a communication method flow provided by an embodiment of the present application;
图5至图7为本申请实施例提供的SSB设计的示意图;5 to 7 are schematic diagrams of the SSB design provided by the embodiment of the present application;
图8为本申请实施例提供的一种通信装置的结构的示意图;FIG. 8 is a schematic diagram of a structure of a communication device provided by an embodiment of the present application;
图9为本申请实施例提供的一种通信装置的结构的示意图;FIG. 9 is a schematic diagram of a structure of a communication device provided by an embodiment of the present application;
图10为本申请实施例提供的一种通信装置的结构的示意图;FIG. 10 is a schematic diagram of a structure of a communication device provided by an embodiment of the present application;
图11为本申请实施例提供的一种通信装置的结构的示意图。FIG. 11 is a schematic diagram of a structure of a communication device provided by an embodiment of the present application.
下面将结合附图,对本申请实施例进行详细描述。Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(long term evolution,LTE)系统,全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统,未来的第五代(5th Generation,5G)系统,如新一代无线接入技术(new radio access technology,NR),及未来的通信系统,如6G系统等。The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) system, worldwide interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, future fifth generation (5th Generation, 5G) systems, such as a new generation of wireless access technology (new radio access technology, NR), and future communication systems, such as 6G systems.
本申请实施例的技术方案可以应用于无人驾驶(unmanned driving)、辅助驾驶(driver assistance,ADAS)、智能驾驶(intelligent driving)、网联驾驶(connected driving)、智能网联驾驶(Intelligent network driving)、汽车共享(car sharing)、智能汽车(smart/intelligent car)、数字汽车(digital car)、无人汽车(unmanned car/driverless car/pilotless car/automobile)、车联网(Internet of vehicles,IoV)、自动汽车(self-driving car、autonomous car)、车路协同(cooperative vehicle infrastructure,CVIS)、智能交通(intelligent transport system,ITS)、车载通信(vehicular communication)等技术领域。The technical solutions of the embodiments of the present application can be applied to unmanned driving, assisted driving (driver assistance, ADAS), intelligent driving, connected driving, intelligent network driving ), car sharing, smart/intelligent car, digital car, unmanned car/driverless car/pilotless car/automobile, Internet of vehicles (IoV) , self-driving car (autonomous car), vehicle-road coordination (cooperative vehicle infrastructure, CVIS), intelligent transportation (intelligent transport system, ITS), vehicle communication (vehicular communication) and other technical fields.
以下,对本申请实施例中的部分用语进行解释说明,以便于本领域技术人员理解。In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.
1)终端设备,包括向用户提供语音和/或数据连通性的设备,例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network,RAN)与核心网进行通信,与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment,UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device,D2D)终端设备、V2X终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications,M2M/MTC)终端设备、物联网(internet of things,IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、远程站(remote station)、接入点(access point,AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如,可以包括移动电话(或称为“蜂窝”电话),具有移动终端设备的计算机,便携式、袖珍式、手持式、计算机内置的移动装置等。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiation protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、等设备。还包括受限设备,例如功耗较低的设备,或存储能力有限的设备,或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification,RFID)、传感器、全球定位系统(global positioning system,GPS)、激光扫描器等信息传感设备。1) Terminal equipment, including equipment that provides voice and/or data connectivity to users, for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network (radio access network, RAN), and exchange voice and/or data with the RAN. The terminal device may include user equipment (user equipment, UE), wireless terminal device, mobile terminal device, device-to-device communication (device-to-device, D2D) terminal device, V2X terminal device, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, internet of things (IoT) terminal equipment, subscriber unit, subscriber station, mobile station , remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device) and so on. For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer built-in mobile devices, and the like. For example, personal communication service (personal communication service, PCS) telephone, cordless telephone, session initiation protocol (session initiation protocol, SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), and other equipment. Also includes constrained devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities, etc. For example, it includes barcodes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning system (global positioning system, GPS), laser scanners and other information sensing devices.
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能头盔、智能首饰等。As an example but not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes wait. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
而如上介绍的各种终端设备,如果位于车辆上(例如放置在车辆内或安装在车辆内),都可以认为是车载终端设备,车载终端设备例如也称为车载单元(on-board unit,OBU)。The various terminal devices described above, if located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminal devices. The vehicle-mounted terminal device is also called an on-board unit (OBU). ).
本申请实施例中,终端设备还可以包括中继(relay)。或者理解为,能够与基站进行数据通信的都可以看作终端设备。In this embodiment of the present application, the terminal device may further include a relay (relay). Or it can be understood that all devices capable of performing data communication with the base station can be regarded as terminal devices.
本申请实施例可能涉及两种终端设备:宽带终端设备和窄带终端设备。其中,宽带终端设备和窄带终端设备需满足的条件,包括但不限于如下几种:The embodiment of the present application may involve two types of terminal equipment: broadband terminal equipment and narrowband terminal equipment. Among them, the conditions to be met by broadband terminal equipment and narrowband terminal equipment include but are not limited to the following:
(1)在本申请实施例中,窄带终端设备的最大带宽能力小于或等于宽带终端设备的 最小带宽能力。以窄带终端设备是窄带物联网(narrow band internet of things,NB-IoT)终端设备、宽带终端设备是长期演进(long term evolution,LTE)终端设备为例。NB-IoT终端设备的数据传输带宽为1个RB,即180kHz或200kHz(包括保护频带),因为LTE系统下的PSS/SSS所占的频率资源为6个RB,即1.08MHz或1.44MHz(包括保护频带),所以宽带终端设备的最小带宽能力可以认为是不小于1.08MHz的,在这种情况下,可以认为窄带终端设备的最大带宽能力小于或等于宽带终端设备的最小带宽能力。又例如,窄带终端设备是NB-IoT终端设备、宽带终端设备为NR终端设备,基于NR系统SSB的设计,NR终端设备的最小带宽能力可以认为是20个RB,其中每个RB包括12个子载波,在NR系统中,子载波间隔与NR系统部署的频带有关,不是固定值,以最小的子载波间隔15kHz为例,最小带宽能力可以认为是大于或等于20*12*15=3.6MHz,依然可以认为窄带终端设备的最大带宽能力小于或等于宽带终端设备的最小带宽能力。(1) In the embodiment of this application, the maximum bandwidth capability of the narrowband terminal device is less than or equal to the minimum bandwidth capability of the broadband terminal device. For example, the narrowband terminal device is a narrowband internet of things (narrow band internet of things, NB-IoT) terminal device, and the broadband terminal device is a long term evolution (long term evolution, LTE) terminal device. The data transmission bandwidth of NB-IoT terminal equipment is 1 RB, that is, 180kHz or 200kHz (including the guard band), because the frequency resource occupied by the PSS/SSS under the LTE system is 6 RB, that is, 1.08MHz or 1.44MHz (including guard band), so the minimum bandwidth capability of broadband terminal equipment can be considered not less than 1.08MHz. In this case, it can be considered that the maximum bandwidth capability of narrowband terminal equipment is less than or equal to the minimum bandwidth capability of broadband terminal equipment. For another example, the narrowband terminal equipment is NB-IoT terminal equipment, and the broadband terminal equipment is NR terminal equipment. Based on the design of NR system SSB, the minimum bandwidth capability of NR terminal equipment can be considered as 20 RBs, and each RB includes 12 subcarriers. , in the NR system, the subcarrier spacing is related to the frequency band deployed by the NR system, not a fixed value. Taking the minimum subcarrier spacing of 15kHz as an example, the minimum bandwidth capability can be considered to be greater than or equal to 20*12*15=3.6MHz, still It can be considered that the maximum bandwidth capability of the narrowband terminal equipment is less than or equal to the minimum bandwidth capability of the broadband terminal equipment.
(2)在本申请实施例中,也可以认为窄带终端设备的最小带宽能力小于宽带终端设备的最小带宽能力。如果终端设备与网络设备之间建立数据传输通道,则一般而言,终端设备需要先接收网络设备发送的同步信道以及广播信道,因此可以认为网络设备发送的同步信道以及广播信道所对应的带宽为终端设备所需要具备的最小带宽能力。(2) In the embodiment of the present application, it may also be considered that the minimum bandwidth capability of the narrowband terminal device is smaller than the minimum bandwidth capability of the broadband terminal device. If a data transmission channel is established between the terminal device and the network device, generally speaking, the terminal device needs to receive the synchronization channel and broadcast channel sent by the network device first, so it can be considered that the bandwidth corresponding to the synchronization channel and broadcast channel sent by the network device is The minimum bandwidth capability required by terminal equipment.
基于(1)和(2),窄带终端设备也可以认为是带宽受限(bandwidth limited,BL)终端设备,需要说明的是,BL终端设备也可以具有除(1)和(2)的其他带宽特征,不作具体限定。Based on (1) and (2), the narrowband terminal device can also be considered as a bandwidth limited (bandwidth limited, BL) terminal device. It should be noted that the BL terminal device can also have other bandwidths than (1) and (2). characteristics, not specifically limited.
(3)在本申请实施例中,窄带终端设备也可以认为需要通过覆盖增强(coverage enhancement,CE)技术与网络设备保持正常的数据通信,而宽带终端设备即使不通过CE技术,也可以与网络设备保持正常的数据通信。CE技术包括但不限于数据重复传输或功率提升等技术。或者,如果宽带终端设备和窄带终端设备在某些场景下,都需要通过数据重复传输,和网络设备保持正常的数据通信,那么,窄带终端设备与网络设备保持数据通信,所需要的最大重复次数,要小于宽带终端设备与网络设备保持数据通信所需要的最大重复次数。(3) In this embodiment of the application, narrowband terminal devices can also be considered to maintain normal data communication with network devices through coverage enhancement (CE) technology, while broadband terminal devices can communicate with network devices even if they do not use CE technology. The device maintains normal data communication. CE technologies include but are not limited to technologies such as repeated data transmission or power boosting. Or, if both the broadband terminal device and the narrowband terminal device need to maintain normal data communication with the network device through repeated data transmission in certain scenarios, then the maximum number of repetitions required for the narrowband terminal device to maintain data communication with the network device , to be less than the maximum number of repetitions required for the broadband terminal device to maintain data communication with the network device.
(4)在本申请实施例中,窄带终端设备也可以认为是低功率广覆盖接入(low power wide coverage access,LPWA)终端设备,宽带终端设备可以认为是增强型移动宽带(enhanced mobile broadband,eMBB)终端设备或者超可靠低延时通信(ultra-reliability low-latency communication,URLLC)终端设备。(4) In this embodiment of the application, the narrowband terminal device can also be considered as a low power wide coverage access (LPWA) terminal device, and the broadband terminal device can be considered as an enhanced mobile broadband (enhanced mobile broadband, eMBB) terminal equipment or ultra-reliable low-latency communication (ultra-reliability low-latency communication, URLLC) terminal equipment.
另外在本申请实施例中,同一个终端设备可以既具有窄带能力也具有宽带能力,也就是,该终端设备可以既作为宽带终端设备也作为窄带终端设备,或者说,该终端设备同时具有non-CE和CE能力,该终端设备既可以不依赖CE技术与接入网设备保持正常通信,也可以依赖CE技术与接入网设备保持正常通信。或者,可能一个终端设备只具有窄带能力而不具有宽带能力,则该终端设备只是窄带终端设备而不是宽带终端设备等,即该终端设备只能依赖CE技术与接入网设备保持正常通信。这两种终端设备都可以适用本申请实施例提供的技术方案。In addition, in this embodiment of the application, the same terminal device can have both narrowband capability and broadband capability, that is, the terminal device can function as both a broadband terminal device and a narrowband terminal device, or in other words, the terminal device has both non- CE and CE capabilities, the terminal equipment can maintain normal communication with access network equipment without relying on CE technology, or can maintain normal communication with access network equipment relying on CE technology. Or, a terminal device may only have narrowband capability but not broadband capability, then the terminal device is only a narrowband terminal device rather than a broadband terminal device, that is, the terminal device can only rely on CE technology to maintain normal communication with access network devices. The technical solutions provided in the embodiments of the present application can be applied to both types of terminal devices.
2)网络设备,例如包括接入网(access network,AN)设备,例如基站(例如,接入点),可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备,或者例如,一种V2X技术中的网络设备为路侧单元(road side unit,RSU)。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换,作为终端设备与接入网的其余部分之间的路 由器,其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体,可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如,网络设备可以包括LTE系统或高级长期演进(long term evolution-advanced,LTE-A)中的演进型基站(NodeB或eNB或e-NodeB,evolutional Node B),或者也可以包括5G NR系统中的下一代节点B(next generation node B,gNB)或者也可以包括云接入网(cloud radio access network,Cloud RAN)系统中的集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU),本申请实施例并不限定。2) Network equipment, for example including access network (access network, AN) equipment, such as base stations (for example, access points), may refer to equipment in the access network that communicates with wireless terminal equipment through one or more cells over the air interface , or for example, a network device in a V2X technology is a road side unit (road side unit, RSU). The base station can be used to convert received over-the-air frames to and from Internet Protocol (IP) packets and act as a router between the terminal device and the rest of the access network, which can include an IP network. The RSU can be a fixed infrastructure entity supporting V2X applications, and can exchange messages with other entities supporting V2X applications. The network device can also coordinate the attribute management of the air interface. For example, the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in the LTE system or long term evolution-advanced (LTE-A), or may also include a 5G NR system The next generation node B (next generation node B, gNB) may also include the centralized unit (centralized unit, CU) and the distributed unit (distributed unit, DU), the embodiment of the present application is not limited.
3)本申请实施例中,提到的小区可以是基站对应的小区,小区可以属于宏基站,也可以属于小小区(small cell)对应的基站。这里的小小区可以包括:城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。3) In the embodiment of the present application, the mentioned cell may be a cell corresponding to a base station, and the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (small cell). The small cells here may include: urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), etc. These small cells have the characteristics of small coverage and low transmission power , suitable for providing high-speed data transmission services.
LTE系统或NR系统中的载波上可以同时有多个小区同频工作,在某些特殊场景下,可以认为载波与小区的概念等同。例如在载波聚合(carrier aggregation,CA)场景下,当为终端设备配置辅载波时,会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(cell identify,Cell ID),在这种情况下,可以认为载波与小区的概念等同,例如终端设备接入一个载波和接入一个小区是等同的。对于双连接(dual connectivity,DC)场景,也有类似说明。本申请实施例中将以小区的概念来介绍。在NR系统中,如果一个小区或一个载波上只有一个激活的带宽部分(bandwidth part,BWP),则也可以认为小区与BWP的概念等同。Multiple cells can work on the same frequency at the same time on the carrier in the LTE system or NR system. In some special scenarios, the concept of the carrier and the cell can be considered to be equivalent. For example, in a carrier aggregation (carrier aggregation, CA) scenario, when a secondary carrier is configured for a terminal device, the carrier index of the secondary carrier and the cell identity (cell identify, Cell ID) of the secondary cell working on the secondary carrier will be carried at the same time, In this case, it can be considered that the concepts of a carrier and a cell are equivalent, for example, accessing a carrier by a terminal device is equivalent to accessing a cell. Similar descriptions are also provided for a dual connectivity (DC) scenario. In this embodiment of the application, the concept of a cell will be used for introduction. In the NR system, if there is only one active bandwidth part (bandwidth part, BWP) on a cell or a carrier, it can also be considered that the concepts of the cell and the BWP are equivalent.
4)空口资源,在小区中,基站和UE可以通过空口(user to Network interface UE,Uu)资源进行数据传输。空口资源可以包括时域资源和频域资源,时域资源和频域资源还可以称为时频资源。频域资源可以位于设置的频率范围,频率范围还可以称为频带(band)或频段,频域资源的宽度可以称为带宽(bandwidth,BW)。4) Air interface resources. In the cell, the base station and the UE can perform data transmission through air interface (user to Network interface UE, Uu) resources. The air interface resources may include time-domain resources and frequency-domain resources, and the time-domain resources and frequency-domain resources may also be referred to as time-frequency resources. The frequency domain resource may be located in a set frequency range, the frequency range may also be called a frequency band (band) or a frequency band, and the width of the frequency domain resource may be called a bandwidth (bandwidth, BW).
5)时频资源,时频资源可以是资源栅格,包括时域和频域。比如时域单位可以为符号(symbol),频域单位可以为子载波(subcarrier)。资源栅格中最小的资源单位可以称为资源单元(RE)。一个资源块(资源block,RB)在频域上可以包括一个或多个子载波,比如可以是12个子载波。一个时隙在时域可以包括一个或多个符号,比如NR中一个时隙可以包括14个符号(循环前缀(cyclic prefix,CP)的情况下)或者12个符号(扩展循环前缀的情况下)。频域资源通常以正交频分复用多址(Orthogonal Frequency Division Multiple,OFDM)符号,子时隙(sub-slot),时隙(slot),子帧(subframe)或者帧(frame)为单位。需要说明的是,本申请实施例中的术语“时频资源”和“资源”可被互换使用。5) Time-frequency resources, the time-frequency resources may be resource grids, including time domain and frequency domain. For example, the time domain unit may be a symbol, and the frequency domain unit may be a subcarrier. The smallest resource unit in a resource grid may be called a resource element (RE). A resource block (resource block, RB) may include one or more subcarriers in the frequency domain, for example, 12 subcarriers. A slot can include one or more symbols in the time domain, for example, a slot in NR can include 14 symbols (in the case of cyclic prefix (CP)) or 12 symbols (in the case of extended cyclic prefix) . Frequency domain resources are usually in units of Orthogonal Frequency Division Multiple (OFDM) symbols, sub-slots, slots, subframes or frames . It should be noted that the terms "time-frequency resource" and "resource" in the embodiments of the present application may be used interchangeably.
6)时域资源,包括时间单元,时间单元可以为时隙(slot),迷你时隙(mini-slot),符号(symbol)或其他时域粒度(如系统帧、子帧),其中一个时隙可以包括至少一个符号,例如14个符号,或者12个符号。6) Time-domain resources, including time units, which can be slots, mini-slots, symbols or other time-domain granularities (such as system frames and subframes), one of which A slot may include at least one symbol, eg 14 symbols, or 12 symbols.
在5G NR中,一个时隙可以由用作下行传输的符号、用作灵活的符号、用作上行传输的符号等其中的至少一个组成,这样时隙的构成称为不同的时隙格式(slot format,SF),时隙格式最多可能有256种。In 5G NR, a slot can be composed of at least one of symbols used for downlink transmission, symbols used for flexible, and symbols used for uplink transmission, etc., and the composition of such a slot is called a different slot format (slot format, SF), there may be up to 256 slot formats.
时隙可以有不同的时隙类型,不同的时隙类型包括的符号个数不一样,如迷你时隙(mini slot)包含小于7个符号,2个符号,3个符号,4个符号等,普通时隙(slot)包含7个符号或14个符号等。根据子载波间隔不同,每个符号长度可以不同,因此时隙长度可 以不同。The time slot can have different slot types, and the number of symbols included in different slot types is different. For example, a mini slot (mini slot) contains less than 7 symbols, 2 symbols, 3 symbols, 4 symbols, etc., A common slot (slot) contains 7 symbols or 14 symbols, etc. Depending on the subcarrier spacing, each symbol length can be different, so the slot length can be different.
7)频域资源,由于5G NR单载波带宽可以达到400MHz,因而又在一个载波内定义了带宽部分(bandwidth part,BWP),也可以称为载波带宽部分(carrier bandwidth part)。BWP包括频域上的连续若干个资源单元,比如资源块(resource block,RB)。带宽部分可以为下行或上行带宽部分,终端设备在激活的带宽部分内的数据信道上接收或发送数据。频域资源可以包括子信道、频段(band)、载波(carrier)、带宽部分(bandwidth part,BWP)、资源块(resource block,RB),资源单元(Resource Element,RE),或资源池等。其中,RB在时域上占用1个子帧或1个时隙,在频域上占用连续的多个子载波。LTE中,PRB在时域上占一个子帧中连续的14个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号,频域上占用连续的12个子载波。子信道,是物理侧行共享信道占用频域资源的最小单位,一个子信道可以包括一个或多个资源块(resource block,RB)。无线通信系统在频域上的带宽可以包括多个RB,例如,在LTE系统的各可能的带宽中,包括的PRB可以为6个、15个、25个、50个等。7) Frequency domain resources. Since the bandwidth of a 5G NR single carrier can reach 400MHz, a bandwidth part (BWP) is defined within a carrier, which can also be called a carrier bandwidth part. The BWP includes several consecutive resource units in the frequency domain, such as resource blocks (resource block, RB). The bandwidth part may be a downlink or uplink bandwidth part, and the terminal device receives or sends data on a data channel within the activated bandwidth part. Frequency domain resources may include subchannels, frequency bands (bands), carriers (carriers), bandwidth parts (bandwidth parts, BWPs), resource blocks (resource blocks, RBs), resource elements (Resource Elements, REs), resource pools, and the like. Wherein, the RB occupies one subframe or one time slot in the time domain, and occupies multiple consecutive subcarriers in the frequency domain. In LTE, PRBs occupy 14 consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols in a subframe in the time domain, and occupy 12 consecutive subcarriers in the frequency domain. A subchannel is the smallest unit of frequency domain resources occupied by the physical sidelink shared channel, and one subchannel may include one or more resource blocks (resource blocks, RBs). The bandwidth of the wireless communication system in the frequency domain may include multiple RBs. For example, in each possible bandwidth of the LTE system, the included PRBs may be 6, 15, 25, 50, and so on.
8)序列资源,又称码域资源,为用来指示序列的相关参数。对于随机序列,序列的参数包括序列的初始位置,序列的长度,序列的初始值;对于低峰均比序列(例如ZC(zadoff–chu)序列),序列的参数包括根序列、掩码、扰码、循环移位(cyclic shift,CS)或正交覆盖码(orthogonal cover code,OCC)等。8) Sequence resources, also known as code domain resources, are related parameters used to indicate sequences. For a random sequence, the parameters of the sequence include the initial position of the sequence, the length of the sequence, and the initial value of the sequence; code, cyclic shift (cyclic shift, CS) or orthogonal cover code (orthogonal cover code, OCC), etc.
序列的初始值,指对于随机序列(如Gold序列,m序列)来说,生成序列的移位寄存器的初始值。The initial value of the sequence refers to the initial value of the shift register that generates the sequence for a random sequence (eg Gold sequence, m sequence).
序列的初始位置与用于传输时使用的随机序列之间满足:c(n)=c(n+a),n=0,1,2,…,L-1,其中c(n)为用于传输时使用的随机序列,a为随机序列的初始位置,L为随机序列的长度,一般a为非负的整数,如a为0,或a为2等。The initial position of the sequence and the random sequence used for transmission satisfy: c(n)=c(n+a), n=0,1,2,...,L-1, where c(n) is used The random sequence used in transmission, a is the initial position of the random sequence, L is the length of the random sequence, generally a is a non-negative integer, such as a is 0, or a is 2, etc.
举例来说,同步信号的序列可以是按如下方式生成的:For example, a sequence of synchronization signals can be generated as follows:
r l(n)=(1-2c(n)) r l (n)=(1-2c(n))
其中n=0,1,2,…;r l()表示同步信号的序列;c(n)为随机序列,例如,随机序列为31bit或31位的移位寄存器的Gold序列,或者m序列。 Where n=0,1,2,...; r l () represents a sequence of synchronous signals; c(n) is a random sequence, for example, the random sequence is a 31-bit or Gold sequence of a 31-bit shift register, or an m-sequence.
9)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,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的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“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。9) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "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 .
以及,除非有相反的说明,本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分,不用于限定多个对象的顺序、时序、优先级或者重要程度。例如,第一同步信号和第二同步信号,只是为了区分不同的同步信号,而并不是表示这两个同步信号的内容、优先级、发送顺序或者重要程度等的不同。And, unless otherwise stated, the ordinal numerals such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or priority of multiple objects. Importance. For example, the first synchronization signal and the second synchronization signal are only used to distinguish different synchronization signals, and do not represent the differences in content, priority, sending order, or importance of the two synchronization signals.
如上介绍了本申请实施例涉及的一些概念,下面介绍本申请实施例的技术特征。Some concepts involved in the embodiments of the present application are introduced above, and the technical features of the embodiments of the present application are introduced below.
5G NR,是基于OFDM的全新空口设计的全球性5G标准,也是下一代非常重要的蜂窝移动技术基础。5G技术的业务非常多样,可以面向eMBB、URLLC以及大规模机器通信 (massive machine-type communication,mMTC)。5G NR is a global 5G standard based on a new OFDM air interface design, and it is also a very important foundation for the next generation of cellular mobile technology. The services of 5G technology are very diverse, and can be oriented to eMBB, URLLC, and massive machine-type communication (mMTC).
NR系统业务的多样化,使得NR系统的设计可以满足不同带宽能力的终端设备的接入需求。例如,eMBB终端设备可以通过获取NR系统的宽带信息,接入NR系统,而部分mMTC终端设备由于设计成本或低功耗等方面的考虑,可以通过获取NR系统的窄带信息,接入NR系统;又例如,即使针对同一种业务类型,例如mMTC,也有不同的业务速率要求,例如对于抄电表、跟踪追查或按需支付等用例,终端设备对数据传输速率要求不高,但一般要求具有深度覆盖,一般可以通过窄带接入;另一方面,例如监控视频回传等,对数据传输速率要求比较高,因此可以看做是具有中高端能力的终端设备,一般可以通过宽带接入。The diversification of NR system services enables the design of the NR system to meet the access requirements of terminal devices with different bandwidth capabilities. For example, eMBB terminal devices can access the NR system by obtaining broadband information of the NR system, while some mMTC terminal devices can access the NR system by obtaining narrowband information of the NR system due to design cost or low power consumption considerations; For another example, even for the same service type, such as mMTC, there are different service rate requirements. For example, for use cases such as meter reading, tracking and tracing, or on-demand payment, terminal devices do not require high data transmission rates, but generally require deep coverage. , generally can be accessed through narrowband; on the other hand, such as surveillance video backhaul, etc., require relatively high data transmission rate, so it can be regarded as a terminal device with medium and high-end capabilities, and generally can be accessed through broadband.
另一方面,随着NR系统业务的多样化,NR系统下的终端设备的能力也呈现多样化,可以在不同系统带宽下工作。On the other hand, with the diversification of NR system services, the capabilities of terminal equipment under the NR system are also diversified, and can work under different system bandwidths.
在现有的NR系统中,终端设备可以通过接收SSB来实现与基站的同步,以及获取系统消息等。其中,PSS、SSS和PBCH共同构成一个SSB。如图1所示,在时域上,1个SSB占用4个OFDM符号,为符号0~符号3,在频域上,1个SSB占用20个RB,也就是240个子载波,在这20个RB内,子载波编号为0~239。PSS位于符号0的中间的127个子载波上,SSS位于符号2的中间的127个子载波上。其中PSS和SSS信号时域占据1个符号,频域占据12个RB,包括128个子载波。具体如下图1所示,其中,左起第一个OFDM符号承载PSS,编号为0,1,…,55,183,184,…,239的子载波置为0,编号为56,57,…,182的子载波为PSS占用的子载波;左起第2和第4个OFDM符号承载PBCH,并且每4个连续的子载波中都有一个为PBCH对应的DMRS;左起第3个OFDM符号承载了SSS和PBCH,编号为56,57,…,182的子载波置为SSS,编号为0,1,…,47,192,193,…,239的子载波为PBCH。为了保护PSS和SSS,分别有不同的保护子载波的能量被设为0,也就是有保护子载波不用于承载信号,在SSS两侧分别留了8个子载波和9个子载波用于作为保护带子载波,如图1中的SSS上下两侧的空白区域就是保护子载波。PBCH占用符号1和符号3的全部子载波,以及占用符号2的全部子载波中除了SSS所占用的子载波之外的剩余的子载波中的一部分子载波(剩余的子载波中除了保护子载波之外的子载波)。In the existing NR system, the terminal device can realize synchronization with the base station and obtain system information and the like by receiving the SSB. Wherein, PSS, SSS and PBCH together constitute an SSB. As shown in Figure 1, in the time domain, 1 SSB occupies 4 OFDM symbols, which are
未来的终端设备具有多种带宽能力,例如窄带能力和宽带能力,也面临更多样化的应用场景和业务场景。考虑窄带物联终端的带宽限制,NR系统SSB中PBCH信号占用带宽对于窄带接入的物联网设备过大,导致NR系统中的SSB不符合物联网设备接入的需求,无法兼容窄带物联网设备的SSB接入NR系统,对于小于20RB带宽的窄带终端设备,是无法检测目前的SSB的。考虑到窄带SSB作为公共信号,基站需要经常(always)发送SSB,因此,需要尽量减少现有基站在发送SSB所导致的对节能机制的影响。鉴于此,提供本申请实施例的技术方案。本申请实施例提供了一种新的SSB,相当于,这些信号在时域上可以占用多个符号来发送,而且本申请实施例限制SSB的频域范围与PSS和SSS相同,并且,所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS在时域上相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;使得本申请实施例提供的SSB既能满足窄带终端设备的SSB的覆盖性能的需求,也能避免NR系统中的其他终端设备误检到窄带终端设备的SSB,提高了该SSB针对窄带终端设备的性能的同时,提高了SSB的针对性。Future terminal devices will have multiple bandwidth capabilities, such as narrowband capabilities and broadband capabilities, and will also face more diverse application and business scenarios. Considering the bandwidth limitation of narrowband IoT terminals, the bandwidth occupied by the PBCH signal in the SSB of the NR system is too large for narrowband connected IoT devices. As a result, the SSB in the NR system does not meet the requirements of IoT device access and cannot be compatible with narrowband IoT devices. If the SSB is connected to the NR system, it is impossible to detect the current SSB for the narrowband terminal equipment with a bandwidth of less than 20RB. Considering that the narrowband SSB is used as a common signal, the base station needs to transmit the SSB frequently (always). Therefore, it is necessary to minimize the impact on the energy saving mechanism caused by the transmission of the SSB by the existing base station. In view of this, the technical solutions of the embodiments of the present application are provided. The embodiment of the present application provides a new SSB, which means that these signals can occupy multiple symbols in the time domain for transmission, and the embodiment of the present application restricts the frequency domain range of the SSB to be the same as that of the PSS and SSS, and the The PSS, the SSS, and the PBCH are located in different symbols in the time domain; the SSS and the PSS are adjacent in the time domain, or the SSS and the PSS are separated by at least 2 symbols in the time domain ; The SSB provided by the embodiment of the present application can not only meet the requirements of the coverage performance of the SSB of the narrowband terminal equipment, but also avoid misdetection of the SSB of the narrowband terminal equipment by other terminal equipment in the NR system, and improve the SSB for the narrowband terminal equipment. While improving the performance, the pertinence of SSB is improved.
本申请实施例提供的技术方案可以用于无线通信系统,包括4.5G或5G无线通信系统,以及基于LTE或者NR的进一步演进系统,以及未来的无线通信系统。The technical solutions provided by the embodiments of the present application can be used in wireless communication systems, including 4.5G or 5G wireless communication systems, further evolution systems based on LTE or NR, and future wireless communication systems.
本申请实施例的第一种应用场景可以是,能够同时服务不同带宽能力的终端设备的无线通信系统。例如可以同时服务mMTC终端设备和eMBB终端设备的LTE系统或NR系统。The first application scenario of the embodiment of the present application may be a wireless communication system capable of simultaneously serving terminal devices with different bandwidth capabilities. For example, an LTE system or an NR system that can simultaneously serve mMTC terminal devices and eMBB terminal devices.
请参考图2,为本申请一个实施例的通信系统100的示例性架构图。本申请实施例中的方法可以应用于图2所示的通信系统100中。通信系统100可以是PLMN网络、设备到设备(device-to-device,D2D)网络、机器到机器(machine to machine,M2M)网络、IoT网络或者其他网络。此外,终端设备104~终端设备106也可以组成一个通信系统。图2所示的网络架构适用于本申请实施例的第一种应用场景。Please refer to FIG. 2 , which is an exemplary architecture diagram of a communication system 100 according to an embodiment of the present application. The method in the embodiment of the present application may be applied to the communication system 100 shown in FIG. 2 . The communication system 100 may be a PLMN network, a device-to-device (device-to-device, D2D) network, a machine-to-machine (machine-to-machine, M2M) network, an IoT network or other networks. In addition, the terminal device 104 to the terminal device 106 may also form a communication system. The network architecture shown in FIG. 2 is applicable to the first application scenario of the embodiment of the present application.
图2所示的通信系统100中,网络设备和终端设备101~终端设备106组成一个通信系统100。在该通信系统100中,网络设备可以向终端设备101~终端设备106发送下行数据,当然,终端设备101~终端设备106也可以发送上行数据给网络设备。在该通信系统中,终端设备105可以发送下行数据给终端设备104或终端设备106。In the communication system 100 shown in FIG. 2 , a network device and terminal devices 101 - 106 form a communication system 100 . In the communication system 100, the network device can send downlink data to the terminal device 101-106, and of course, the terminal device 101-106 can also send uplink data to the network device. In the communication system, the terminal device 105 can send downlink data to the terminal device 104 or the terminal device 106 .
图2中的网络设备或终端设备可以是硬件,也可以是从功能上划分的软件或者以上二者的结合。图2中的网络设备或终端设备之间可以通过其他设备或网元通信。The network device or terminal device in FIG. 2 may be hardware, or functionally divided software, or a combination of the above two. The network devices or terminal devices in FIG. 2 may communicate through other devices or network elements.
图2中的终端设备可以包括两种类型的终端设备,分别为第1种终端设备和第2种终端设备2,这两种终端设备均可以与网络设备连接,以第1种终端设备为支持宽带能力的终端设备为例,例如,第1种终端设备可以为现有版本15的NR终端设备,以第2种终端设备为支持窄带能力的终端设备为例,例如为未来版本的窄带mMTC终端设备。The terminal equipment in Figure 2 may include two types of terminal equipment, namely the first type of terminal equipment and the second type of
应理解,当然图2中的终端设备的数量只是举例,可以应用本申请实施例的方法的通信系统100中可以包括更多或更少的网络设备或终端设备。在实际应用中,网络设备可以为多个终端设备提供服务。It should be understood that, of course, the number of terminal devices in FIG. 2 is only an example, and the communication system 100 to which the method of the embodiment of the present application can be applied may include more or fewer network devices or terminal devices. In practical applications, a network device can provide services for multiple terminal devices.
本申请实施例的第二种应用场景可以是,只能服务于窄带能力的终端设备的无线通信系统,例如只服务于NB-IoT终端设备的LTE系统或NR系统。The second application scenario of the embodiment of the present application may be a wireless communication system that can only serve terminal devices with narrowband capabilities, for example, an LTE system or an NR system that only serves NB-IoT terminal devices.
请参考图2,为本申请实施例所应用的另一种网络架构,图3所示的网络架构适用于本申请实施例的第二种应用场景。Please refer to FIG. 2 , which is another network architecture applied in the embodiment of the present application, and the network architecture shown in FIG. 3 is applicable to the second application scenario of the embodiment of the present application.
图3中包括网络设备和一个终端设备,该终端设备可以与网络设备连接,例如该终端设备为支持窄带能力的终端设备,例如为NB-IoT终端设备。当然图3中的终端设备的数量只是举例,在实际应用中,网络设备可以为多个终端设备提供服务。FIG. 3 includes a network device and a terminal device. The terminal device can be connected to the network device. For example, the terminal device is a terminal device supporting narrowband capabilities, such as an NB-IoT terminal device. Of course, the number of terminal devices in FIG. 3 is just an example. In practical applications, a network device may provide services for multiple terminal devices.
图2或图3中的网络设备例如为接入网设备,例如基站。其中,网络设备在不同的系统对应不同的设备,例如在第四代移动通信技术(the 4 th generation,4G)系统中可以对应eNB,在5G系统中对应5G中的网络设备,例如gNB。 The network device in FIG. 2 or FIG. 3 is, for example, an access network device, such as a base station. Wherein, the network equipment corresponds to different equipment in different systems, for example, in the fourth generation mobile communication technology (the 4 th generation, 4G) system, it can correspond to eNB, and in the 5G system, it can correspond to network equipment in 5G, such as gNB.
接下来结合附图介绍本申请实施例提供的技术方案。Next, the technical solutions provided by the embodiments of the present application will be introduced with reference to the accompanying drawings.
本申请实施例提供一种通信方法,请参见图4,为该方法的流程图。在下文的介绍过程中,以该方法应用于图2或图3所示的网络架构为例。另外,该方法可由两个通信装置执行,这两个通信装置例如为第一通信装置和第二通信装置。其中,第一通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置,或者第一通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片系统。第二通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置,或者第二通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片系统。且对于第一通信装 置和第二通信装置的实现方式均不做限制,例如第一通信装置可以是网络设备,第二通信装置是终端设备,或者第一通信装置是网络设备,第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置,或者第一通信装置是能够支持网络设备实现该方法所需的功能的通信装置,第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置,等等。其中,网络设备例如为基站。An embodiment of the present application provides a communication method. Please refer to FIG. 4 , which is a flowchart of the method. In the following introduction process, it is taken as an example that this method is applied to the network architecture shown in FIG. 2 or FIG. 3 . In addition, the method may be performed by two communication devices, such as a first communication device and a second communication device. Wherein, the first communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the first communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method , of course, can also be other communication devices, such as a system on a chip. The second communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, of course It may also be other communication devices, such as a system on a chip. And there are no restrictions on the implementation of the first communication device and the second communication device, for example, the first communication device may be a network device, the second communication device may be a terminal device, or the first communication device may be a network device, and the second communication device It is a communication device that can support the functions required by the terminal device to implement the method, or the first communication device is a communication device that can support the functions required by the network device to implement the method, and the second communication device is a communication device that can support the terminal device to implement the method. communication device for the desired function, etc. Wherein, the network device is, for example, a base station.
为了便于介绍,在下文中,以该方法由网络设备和终端设备执行为例,也就是,以第一通信装置是网络设备、第二通信装置是终端设备为例。如果将本实施例应用在图3所示的网络架构,则下文中所述的网络设备可以是图3所示的网络架构中的网络设备,下文中所述的终端设备可以是图3所示的网络架构中的终端设备1或终端设备2,如果将本实施例应用在图4所示的网络架构,则下文中所述的网络设备可以是图4所示的网络架构中的网络设备,下文中所述的终端设备可以是图4所示的网络架构中的终端设备。需注意的是,本申请实施例只是以通过网络设备和终端设备执行为例,并不限制于这种场景,例如还可能通过终端设备和终端设备来执行,如果是这种情况,则下文中的网络设备可替换为第一终端设备,下文中的终端设备可替换为第二终端设备,第一终端设备可以是既支持宽带能力又支持窄带能力的终端设备,或者是支持窄带能力的终端设备,第二终端设备可以是既支持宽带能力又支持窄带能力的终端设备,或者是支持窄带能力的终端设备。For ease of introduction, in the following, it is taken that the method is executed by a network device and a terminal device as an example, that is, it is taken that the first communication device is a network device and the second communication device is a terminal device as an example. If this embodiment is applied to the network architecture shown in Figure 3, the network equipment described below may be the network equipment in the network architecture shown in Figure 3, and the terminal equipment described below may be the network equipment shown in Figure 3 The
S401、网络设备确定第一信号。S401. The network device determines a first signal.
在本申请实施例中,第一信号包括一个SSB。该SSB可以包括PSS,SSS和PBCH。需要说明的是,PSS和SSS可以分别称为第一SS和第二SS,本发明实施例对名称不做限制。In this embodiment of the present application, the first signal includes an SSB. The SSB may include PSS, SSS and PBCH. It should be noted that the PSS and the SSS may be called the first SS and the second SS respectively, and the names are not limited in this embodiment of the present invention.
其中,所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS在时域上相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号。Wherein, the PSS, the SSS and the PBCH are located in different symbols in the time domain; the SSS is adjacent to the PSS in the time domain, or the SSS and the PSS are spaced apart in the time domain At least 2 symbols.
为避免用于窄带终端设备的SSB被宽带终端设备或其他NR中的终端设备盲检到,例如,将SSS设置在第3个符号上的方案,无论是宽带终端设备,或者其他NR系统中的终端设备,都可以接收到PSS和SSS,导致宽带终端设备和其他NR系统中的非窄带终端设备的不必要的盲检,浪费终端设备的资源。本申请提出以下可能的实现方式,避免窄带终端设备对应的SSB不被非窄带终端设备盲检,以减少终端设备的功耗。In order to prevent the SSB used for narrowband terminal equipment from being blindly detected by broadband terminal equipment or other terminal equipment in NR, for example, the scheme of setting SSS on the 3rd symbol, whether it is broadband terminal equipment or other NR system All terminal devices can receive the PSS and SSS, resulting in unnecessary blind detection of broadband terminal devices and non-narrowband terminal devices in other NR systems, wasting resources of the terminal devices. The present application proposes the following possible implementation methods to prevent the SSB corresponding to the narrowband terminal device from being blindly detected by the non-narrowband terminal device, so as to reduce the power consumption of the terminal device.
在一种可能的实现方式中,对于SSB中的每个SSB所在时域上位于的不同的符号,可以由网络设备配置,或者通过协议规定并在网络设备和终端设备中存储协议规定,具体的不做限制。In a possible implementation manner, the different symbols in the time domain where each SSB in the SSB is located can be configured by the network device, or specified by a protocol and stored in the network device and the terminal device, specifically No restrictions.
一种可能的实现方式,所述PBCH占用的频域位置与PSS、SSS占用的频域位置相同;或者,所述PBCH占用的频域位置包括所述PSS或所述SSS占用的频域位置。如图5所示,第一信号所占用的子载波数目可为144个子载波,72个子载波或者121个子载波,在此不做限定。In a possible implementation manner, the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the PSS and the SSS; or, the frequency domain position occupied by the PBCH includes the frequency domain position occupied by the PSS or the SSS. As shown in FIG. 5 , the number of subcarriers occupied by the first signal may be 144 subcarriers, 72 subcarriers or 121 subcarriers, which is not limited here.
在将所述PBCH占用的频域位置设置为与PSS、SSS占用的频域位置相同时,相比现有技术中的宽频域带宽的SSB中的PBCH的设置方式,减少了SSB的频域带宽。因此,为保证窄带终端设备的覆盖,本申请实施例中,可以通过时域上的扩展,弥补带宽减少带来的性能损失,一种可能的实现方式,可以将SSB的符号设置为6个符号,例如,图5所示,一个SSB包括0-5个符号。1个符号用于PSS,1个符号用于SSS,4个符号用于PBCH。When the frequency domain position occupied by the PBCH is set to be the same as the frequency domain position occupied by the PSS and SSS, compared with the setting method of the PBCH in the SSB with wide frequency domain bandwidth in the prior art, the frequency domain bandwidth of the SSB is reduced . Therefore, in order to ensure the coverage of narrowband terminal equipment, in the embodiment of this application, the performance loss caused by bandwidth reduction can be compensated for through time domain expansion. A possible implementation method can set the SSB symbols to 6 symbols , for example, as shown in FIG. 5, one SSB includes 0-5 symbols. 1 symbol is used for PSS, 1 symbol is used for SSS, and 4 symbols are used for PBCH.
通过上述方法,可以保证本申请实施例中对应窄带终端设备的SSB中的PBCH占用足 够的时间单元,从而保证NR中窄带终端设备和NR终端设备达到相同的覆盖。Through the above method, it can be ensured that the PBCH in the SSB corresponding to the narrowband terminal device in the embodiment of the present application occupies enough time units, so as to ensure that the narrowband terminal device in NR and the NR terminal device achieve the same coverage.
在本申请实施例中,第一信号所占用的子载波数目可为144个子载波,72个子载波或者121个子载波,在此不做限定。针对一个资源块RB包括12个子载波的通信系统,144个子载波也可称为12个资源块RB。每OFDM符号的PSS,SSS和PBCH均占用12个RB,频域上PSS,SSS和PBCH信号均占用144个子载波。第一信号可占用6个符号,以符号为由小到大的顺序进行描述,6个符号可分别为第一个符号、第二个符号、第三个符号、第四个符号、第五个符号和第六个符号。In the embodiment of the present application, the number of subcarriers occupied by the first signal may be 144 subcarriers, 72 subcarriers or 121 subcarriers, which is not limited here. For a communication system in which one resource block RB includes 12 subcarriers, the 144 subcarriers may also be referred to as 12 resource blocks RB. The PSS, SSS and PBCH of each OFDM symbol occupy 12 RBs, and the PSS, SSS and PBCH signals in the frequency domain all occupy 144 subcarriers. The first signal can occupy 6 symbols, and the symbols are described in order from small to large. The 6 symbols can be the first symbol, the second symbol, the third symbol, the fourth symbol, and the fifth symbol. symbol and the sixth symbol.
作为一种SSB的实现方式,例如参考图5,是一个SSB的示意。所述SSS与所述PSS在时域上间隔2个符号。以符号为由小到大的顺序进行描述,即PSS在时域上位于第一个符号,SSS在时域上位于第四个符号,PBCH在时域上位于第二个符号、第三个符号、第五个符号和第六个符号。例如,SSB时域占用的6个OFDM符号为#0~#5。#0符号为PSS信号,#3符号为SSS信号,#1#2#4#5符号为PBCH信号。As an implementation manner of SSB, for example, refer to FIG. 5 , which is a schematic diagram of SSB. The SSS and the PSS are separated by 2 symbols in the time domain. The symbols are described in order from small to large, that is, PSS is located in the first symbol in the time domain, SSS is located in the fourth symbol in the time domain, and PBCH is located in the second and third symbols in the time domain , the fifth symbol and the sixth symbol. For example, the 6 OFDM symbols occupied by the SSB time domain are #0-#5. The #0 symbol is the PSS signal, the #3 symbol is the SSS signal, and the #1#2#4#5 symbol is the PBCH signal.
可以理解的是,在本申请实施例中,X1在时域上位于第X2符号,也可以称为X1承载至第X2符号。比如,X1可取PSS、SSS、PBCH。X2可取第一个符号、第二个符号、第三个符号以及第四个符号等。比如,PSS在时域上位于第一个符号也可称为PSS承载在第一个符号,SSS在时域上位于第四个符号也可称为SSS承载在第四个符号,PBCH在时域上位于第二个符号也可称为PBCH承载在第二个符号等。It can be understood that, in this embodiment of the present application, X1 is located at the X2th symbol in the time domain, which may also be referred to as X1 being carried to the X2th symbol. For example, X1 may take PSS, SSS, or PBCH. X2 can take the first symbol, the second symbol, the third symbol and the fourth symbol and so on. For example, PSS located in the first symbol in the time domain can also be called PSS carried in the first symbol, SSS located in the fourth symbol in the time domain can also be called SSS carried in the fourth symbol, PBCH in the time domain Located on the second symbol may also be referred to as PBCH carried on the second symbol and so on.
通过该方法,可以使得PBCH的配置比较均匀,从而,对于SSB信号的整体峰均比都可以设置的更为均衡。可以降低对终端设备对检测SSB的要求,提高SSB的适用性。Through this method, the configuration of the PBCH can be relatively uniform, so that the overall peak-to-average ratio of the SSB signal can be set to be more balanced. It can reduce the requirement for terminal equipment to detect SSB, and improve the applicability of SSB.
作为一种SSB的实现方式,例如参考图6,是一个SSB的示意。以符号为由小到大的顺序进行描述,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第二个符号,所述PBCH在时域上位于第三个至第六个符号。As an implementation manner of SSB, for example, refer to FIG. 6 , which is a schematic diagram of SSB. The symbols are described in ascending order, the PSS is located in the first symbol in the time domain, the SSS is located in the second symbol in the time domain, and the PBCH is located in the third to Sixth symbol.
作为一种SSB的实现方式,例如参考图7,是一个SSB的示意。所述SSS与所述PSS间隔3个符号。所述PSS在时域上位于第一个符号,所述SSS在时域上位于第五个符号,所述PBCH在时域上位于第二个符号、第三个符号、第四个符号和第六个符号。例如,SSB时域占用的6个OFDM符号为#0~#5。#0符号为PSS信号,#4符号为SSS信号,#1#2#3#5符号为PBCH信号。As an implementation manner of SSB, for example, refer to FIG. 7 , which is a schematic diagram of SSB. The SSS is separated from the PSS by 3 symbols. The PSS is located in the first symbol in the time domain, the SSS is located in the fifth symbol in the time domain, and the PBCH is located in the second symbol, the third symbol, the fourth symbol and the first symbol in the time domain. six symbols. For example, the 6 OFDM symbols occupied by the SSB time domain are #0-#5. The #0 symbol is the PSS signal, the #4 symbol is the SSS signal, and the #1#2#3#5 symbol is the PBCH signal.
通过上述方法,窄带SSB在时域占用更多的OFDM符号,通过时域上的扩展,弥补带宽减少带来的性能损失,保证NR中低成本物联终端UE和NR UE达到相同的覆盖,另外,相比现有技术将SSS设置在第3个符号上的方案,采用本申请实施例中的方案,可以降低非窄带终端设备对SSS的误检,从而减少非窄带终端设备的功耗。Through the above method, the narrowband SSB occupies more OFDM symbols in the time domain, and through the extension in the time domain, it can make up for the performance loss caused by the reduction of bandwidth, and ensure that the low-cost IoT terminal UE and NR UE in NR can achieve the same coverage. , compared with the prior art scheme of setting SSS on the third symbol, adopting the scheme in the embodiment of the present application can reduce false detection of SSS by non-narrowband terminal equipment, thereby reducing power consumption of non-narrowband terminal equipment.
当终端设备进行初始接入时,终端设备在检测PSS时完全是盲检测,终端设备并不知道PSS的位置,完全通过盲检测来实现检测。考虑到上述方案中,非窄带终端设备是在检测不到SSS后,才能确定该SSB为窄带终端设备对应的SSB,为进一步降低非窄带终端设备的误检,减少非窄带终端设备的功耗。When the terminal device performs initial access, the terminal device detects the PSS completely blindly, and the terminal device does not know the location of the PSS, and the detection is realized completely through blind detection. Considering that in the above solution, the non-narrowband terminal device can determine that the SSB is the SSB corresponding to the narrowband terminal device after the SSS cannot be detected, in order to further reduce the false detection of the non-narrowband terminal device and reduce the power consumption of the non-narrowband terminal device.
本申请实施例中,还提供一种PSS信号的序列生成方法,通过将PSS序列中额外增加一个移位值,以区分NR中的SSB中的PSS信号。从而,可以NR终端设备在盲检PSS时,就可以在无法盲检出本申请实施例中的窄带PSS。相对应的,窄带终端设备可以基于盲检到的窄带PSS,可以确定该SSB信号为窄带终端设备对应的SSB,从而进一步降低 NR非窄带终端设备的误检,减少NR非窄带终端设备的功耗。In the embodiment of the present application, a method for generating a PSS signal sequence is also provided, by adding an additional shift value to the PSS sequence to distinguish the PSS signal in the SSB in the NR. Therefore, when the NR terminal device blindly detects the PSS, it cannot blindly detect the narrowband PSS in the embodiment of the present application. Correspondingly, the narrowband terminal device can determine that the SSB signal is the SSB corresponding to the narrowband terminal device based on the blindly detected narrowband PSS, thereby further reducing the false detection of NR non-narrowband terminal devices and reducing the power consumption of NR non-narrowband terminal devices .
在一种可能的实现方式中,PSS信号的序列(第一序列)可以是m序列,下面以m序列举例说明,在PSS信号为其他序列时,可以参考该实施方式,在此不再赘述。In a possible implementation manner, the sequence (first sequence) of the PSS signal may be an m-sequence, and the m-sequence is used as an example for illustration below. When the PSS signal is another sequence, reference may be made to this implementation manner, and details are not repeated here.
举例来说,PSS信号的序列d k(n)满足: For example, the sequence d k (n) of the PSS signal satisfies:
d k(n)=1-2x(m) d k (n) = 1-2x (m)
其中,循环移位序列x(i)满足:Among them, the cyclic shift sequence x(i) satisfies:
x(i+7)=(x(i+4)+x(i))mod 2x(i+7)=(x(i+4)+x(i))
x(i)的初始值满足:The initial value of x(i) satisfies:
[x(6)x(5)x(4)x(3)x(2)x(1)x(0)]=[1 1 1 0 1 1 0][x(6)x(5)x(4)x(3)x(2)x(1)x(0)]=[1 1 1 0 1 1 0]
在本申请实施例中,m满足:In the embodiment of this application, m satisfies:
0≤n<1270≤n<127
其中,n为小于127的正整数;第一移位值K为小于43的正整数,且K可以为素数。第二移位值 中的 用于表示PSS的索引号, 取值范围为{0,1,2}。终端设备可以通过不同的PSS序列和SSS序列以及PBCH中传输的索引号(index)共同确定SSB块索引(block index),用于识别不同的SSB。 Wherein, n is a positive integer less than 127; the first shift value K is a positive integer less than 43, and K may be a prime number. second shift value middle used to represent the index number of the PSS, The value range is {0,1,2}. The terminal device may jointly determine an SSB block index (block index) through different PSS sequences and SSS sequences and an index number (index) transmitted in the PBCH, so as to identify different SSBs.
需要说明的是,对于K的取值,可以由网络设备确定,或者通过协议规定。It should be noted that the value of K may be determined by the network device, or stipulated by a protocol.
通过上述方法,使得窄带SSB中的PSS信号和NR系统SSB中的PSS信号区分开,避免NR终端通过网络发送的窄带SSB中的PSS信号误接入,避免NR终端误检测带来额外的不必要功耗。Through the above method, the PSS signal in the narrowband SSB is distinguished from the PSS signal in the NR system SSB, avoiding the false access of the PSS signal in the narrowband SSB sent by the NR terminal through the network, and avoiding unnecessary additional unnecessary detection by the NR terminal power consumption.
S402、网络设备发送第一信号。S402. The network device sends a first signal.
相应的,窄带终端设备接收来自网络设备的第一信号。Correspondingly, the narrowband terminal device receives the first signal from the network device.
在S401中介绍了,一个SSB具有SSB时域结构,终端设备需要获得该SSB时域结构,这样才能检测SSB。另外,如果终端设备是初始接入,那么终端设备不知道SSB的位置,所以终端设备会对SSB进行盲检测;或者,对于处于连接态的终端设备,一般是知道SSB的位置的,因此可以直接检测,也就是直接接收。因此在本申请实施例中,终端设备“接收”,和终端设备“检测”,可以认为是同一种过程,也就是说,“接收”也就是“检测”。那么,终端设备检测SSB,可能有两种结果:It is introduced in S401 that an SSB has an SSB time domain structure, and the terminal device needs to obtain the SSB time domain structure so as to detect the SSB. In addition, if the terminal device is initially connected, the terminal device does not know the location of the SSB, so the terminal device will perform blind detection on the SSB; or, for a terminal device in the connected state, it generally knows the location of the SSB, so it can directly Detection, that is, direct reception. Therefore, in this embodiment of the present application, "receiving" by a terminal device and "detecting" by a terminal device can be regarded as the same process, that is, "receiving" is also "detecting". Then, the terminal device detects SSB, and there may be two results:
1、检测到(也就是接收到)SSB;1. The SSB is detected (that is, received);
2、没有检测到(也就是没有接收到)SSB。2. The SSB is not detected (ie not received).
这两种结果之间是“或”的关系。There is an "or" relationship between these two results.
在本申请实施例中,在终端设备接收一个SSB之前或同时,该终端设备需要获取SSB时频结构,包括但不限于如下的三种方式:In this embodiment of the application, before or at the same time that a terminal device receives an SSB, the terminal device needs to obtain the SSB time-frequency structure, including but not limited to the following three methods:
第一种方式,SSB时域结构是标准预先定义,该SSB时域结构预配置在终端设备中,或者说,终端设备预先存储了SSB时频结构。此时,终端设备确定SSB时频结构,具体为,终端设备获取预配置或存储于终端设备的SSB时域结构;In the first way, the SSB time-domain structure is pre-defined by the standard, and the SSB time-domain structure is pre-configured in the terminal device, or in other words, the terminal device pre-stores the SSB time-frequency structure. At this time, the terminal device determines the SSB time-frequency structure, specifically, the terminal device obtains the SSB time-domain structure that is preconfigured or stored in the terminal device;
第二种方式,终端设备接收第一信令,所述第一信令指示SSB时频结构,第一信令例 如是网络设备发送的,终端设备根据第一信令就可以确定SSB时域结构。例如,第一信令指示SSS与PSS的相对位置。例如,第一信令指示SSS与PSS在时域上相邻。例如,第一信令指示本申请实施例中引入的至少一种SSB时域结构中的一种或多种。第一信令例如为高层信令,例如无线资源控制(radio resource control,RRC)信令或媒体接入控制控制元素(media access control control element,MAC CE)等;或者,第一信令例如为物理层信令,例如下行控制信息(downlink control information,DCI)等。对于第一信令的实现方式不做限制。In the second way, the terminal device receives the first signaling, the first signaling indicates the SSB time-frequency structure, the first signaling is sent by the network device, for example, and the terminal device can determine the SSB time domain structure according to the first signaling . For example, the first signaling indicates the relative positions of the SSS and the PSS. For example, the first signaling indicates that the SSS and the PSS are adjacent in the time domain. For example, the first signaling indicates one or more of at least one SSB time domain structure introduced in the embodiments of the present application. The first signaling is, for example, high-level signaling, such as radio resource control (radio resource control, RRC) signaling or media access control control element (media access control control element, MAC CE); or, the first signaling is, for example, Physical layer signaling, such as downlink control information (downlink control information, DCI) and the like. The implementation manner of the first signaling is not limited.
第三种方式,终端设备可直接按照窄带能力获取SSB时域结构。例如一个终端设备既可以按照宽带能力接入系统,也可以按照窄带能力接入系统。如果该终端设备处于深度覆盖或超远覆盖的场景,那么该终端设备可以选择按照窄带能力来获取SSB时域结构,以提升该终端设备接入系统的效率。例如,认为所支持的带宽大于或等于5MHz的终端设备是宽带终端设备,那么,终端设备支持的带宽大于或等于5MHz,该终端设备可以按照窄带能力获取SSB时域结构。In a third way, the terminal device can directly obtain the SSB time domain structure according to the narrowband capability. For example, a terminal device can access the system according to the broadband capability, and can also access the system according to the narrowband capability. If the terminal device is in a deep coverage or ultra-long coverage scenario, then the terminal device can choose to obtain the SSB time domain structure according to the narrowband capability, so as to improve the efficiency of the terminal device accessing the system. For example, it is considered that a terminal device whose supported bandwidth is greater than or equal to 5 MHz is a broadband terminal device, then the terminal device supports a bandwidth greater than or equal to 5 MHz, and the terminal device can obtain the SSB time domain structure according to the narrowband capability.
其中,所述终端设备接收的第一信号(SSB)在频域上占用的带宽等于12个RB,其中,一个RB在频域上占用12个子载波。因此,窄带终端设备(最大带宽能力等于12个RB)可以正常接收所述SSB。Wherein, the bandwidth occupied by the first signal (SSB) received by the terminal device in the frequency domain is equal to 12 RBs, where one RB occupies 12 subcarriers in the frequency domain. Therefore, a narrowband terminal device (with a maximum bandwidth capability equal to 12 RBs) can normally receive the SSB.
S403、终端设备根据接收的所述第一信号进行时频同步和/或获取系统消息。S403. The terminal device performs time-frequency synchronization and/or acquires system information according to the received first signal.
具体的,终端设备可以根据至少一个SSB与网络设备进行同步,或者根据至少一个SSB获取系统消息,或者根据至少一个SSB与网络设备进行同步以及获取系统消息。Specifically, the terminal device may synchronize with the network device according to at least one SSB, or obtain system information according to the at least one SSB, or synchronize with the network device and obtain system information according to the at least one SSB.
例如,当SSB包括PSS、SSS和PBCH时,终端设备可以先检测PSS,然后检测SSS,获取时频同步和/或物理小区的身份号(ID),最后再检测PBCH,以获取系统消息。后续,终端设备可以基于该时频同步和系统消息与网络设备进行数据传输。For example, when the SSB includes PSS, SSS and PBCH, the terminal device can first detect the PSS, then detect the SSS, obtain time-frequency synchronization and/or physical cell ID (ID), and finally detect the PBCH to obtain system information. Subsequently, the terminal device can perform data transmission with the network device based on the time-frequency synchronization and the system message.
如前文所述,系统中可能存在多种业务,多种场景,也存在多种带宽能力的终端设备。因此,一个载波上可能会有URLLC、eMBB和mMTC业务,一个载波可能会用于窄带终端设备和宽带终端设备传输数据。采用本申请实施例所提供的SSB,针对窄带终端设备业务提供了便利,避免了其他NR非窄带终端设备的误接入。As mentioned above, there may be multiple services and scenarios in the system, as well as terminal devices with multiple bandwidth capabilities. Therefore, there may be URLLC, eMBB, and mMTC services on one carrier, and one carrier may be used to transmit data between narrowband terminal devices and broadband terminal devices. Adopting the SSB provided by the embodiment of the present application provides convenience for services of narrowband terminal equipment, and avoids wrong access of other NR non-narrowband terminal equipment.
下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此,上文中的内容均可以用于后续实施例中,重复的内容不再赘述。The following describes the devices used to implement the above methods in the embodiments of the present application with reference to the accompanying drawings. Therefore, all the content above can be used in subsequent embodiments, and repeated content will not be repeated.
图8为本申请实施例提供的第一通信装置800的示意性框图。FIG. 8 is a schematic block diagram of a
第一通信装置800包括处理模块810和收发模块820。示例性地,第一通信装置800可以是车载设备,也可以是应用于车载设备中的芯片或者其他具有上述车载设备功能的组合器件、部件等。当第一通信装置800是车载设备时,收发模块820可以是收发器,收发器可以包括天线和射频电路等,处理模块810可以是处理器,例如基带处理器,基带处理器中可以包括一个或多个中央处理单元(central processing unit,CPU)。当第一通信装置800是具有上述车载设备功能的部件时,收发模块820可以是射频单元,处理模块810可以是处理器,例如基带处理器。当第一通信装置800是芯片系统时,收发模块820可以是芯片(例如基带芯片)的输入输出接口、处理模块810可以是芯片系统的处理器,可以包括一个或多个中央处理单元。应理解,本申请实施例中的处理模块810可以由处理器或处理器相关电路组件实现,收发模块820可以由收发器或收发器相关电路组件实现。The
例如,处理模块810可以用于执行图4所示的实施例中由网络设备所执行的除了收发 操作之外的全部操作,例如,步骤201,步骤203,步骤501,步骤503,例如对第一数据进行编码,对第二数据进行编码等操作,和/或用于支持本文所描述的技术的其它过程。收发模块820可以用于执行图4所示的实施例中由网络设备所执行的全部收发操作,和/或用于支持本文所描述的技术的其它过程。For example, the
另外,收发模块820可以是一个功能模块,该功能模块既能完成发送操作也能完成接收操作,例如收发模块820可以用于执行图4所示的实施例中由网络设备所执行的全部发送操作和接收操作,例如,在执行发送操作时,可以认为收发模块820是发送模块,而在执行接收操作时,可以认为收发模块820是接收模块;或者,收发模块820也可以是两个功能模块,收发模块820可以视为这两个功能模块的统称,这两个功能模块分别为发送模块和接收模块,发送模块用于完成发送操作,例如发送模块可以用于执行图4所示的实施例的任一个实施例中由网络设备所执行的全部发送操作,接收模块用于完成接收操作,例如接收模块可以用于执行图4所示的实施例由第网络设备所执行的全部接收操作。In addition, the
其中,处理模块810,用于确定第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;收发模块820,用于发送所述第一信号。Wherein, the
一种可能的实现方式,所述第一信号在时域上包括6个符号。In a possible implementation manner, the first signal includes 6 symbols in the time domain.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第二个符号,所述PBCH在时域上位于第三个至第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the second symbol in the time domain, and the PBCH is located in the third to sixth symbols in the time domain.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第四个符号,所述PBCH在时域上位于第二个符号、第三个符号、第五个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fourth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fifth symbol and the sixth symbol.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第五个符号,所述PBCH在时域上位于第二个符号、第三个符号、第四个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fifth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fourth symbol, and the sixth symbol.
一种可能的实现方式,所述PSS的序列是根据第一序列生成的;所述第一序列中包括第一移位值和第二移位值;其中,所述第一移位值为小于43的正整数;所述第二移位值为根据所述PSS的编号确定的,所述PSS的编号用于确定小区标识。In a possible implementation manner, the sequence of the PSS is generated according to the first sequence; the first sequence includes a first shift value and a second shift value; wherein the first shift value is less than A positive integer of 43; the second shift value is determined according to the number of the PSS, and the number of the PSS is used to determine a cell identity.
一种可能的实现方式,所述PSS的序列d k(n)满足: A possible implementation manner, the sequence d k (n) of the PSS satisfies:
d k(n)=1-2x(m) d k (n) = 1-2x (m)
其中,所述x(m)为所述第一序列;mod表示取模操作;n为小于127的正整数;所述K为所述第一移位值;所述 的取值范围为{0,1,2},所述 表示PSS的编号;所述第二移位值为根据所述 确定的。 Wherein, the x(m) is the first sequence; mod represents a modulo operation; n is a positive integer less than 127; the K is the first shift value; the The value range of is {0,1,2}, the Indicates the number of the PSS; the second shift value is based on the definite.
一种可能的实现方式,所述PBCH占用的频域位置与所述PSS、所述SSS占用的频域位置相同;或者,所述PBCH占用的频域位置包括所述PSS和所述SSS占用的频域位置。A possible implementation manner, the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the PSS and the SSS; or, the frequency domain position occupied by the PBCH includes the frequency domain position occupied by the PSS and the SSS frequency domain location.
一种可能的实现方式,所述PBCH在频域上占用的子载波的数目为以下一项:144,72,或121。In a possible implementation manner, the number of subcarriers occupied by the PBCH in the frequency domain is one of the following: 144, 72, or 121.
当该通信装置为芯片类的装置或者电路时,该装置可以包括收发模块和处理模块。其中,所述收发模块可以是输入输出电路和/或通信接口;处理模块为集成的处理器或者微处理器或者集成电路。When the communication device is a chip-like device or circuit, the device may include a transceiver module and a processing module. Wherein, the transceiver module may be an input/output circuit and/or a communication interface; the processing module is an integrated processor or a microprocessor or an integrated circuit.
关于第一通信装置800所能实现的其他功能,可参考图4所示的实施例的相关介绍,不多赘述。For other functions that can be realized by the
图9为本申请实施例提供的第二通信装置900的示意性框图。FIG. 9 is a schematic block diagram of a
第二通信装置900包括处理模块910和收发模块920。示例性地,第二通信装置900可以是窄带终端设备,也可以是应用于窄带终端设备中的芯片或者其他具有上述窄带终端设备功能的组合器件、部件等。当第二通信装置900是窄带终端设备时,收发模块920可以是收发器,收发器可以包括天线和射频电路等,处理模块910可以是处理器,例如基带处理器,基带处理器中可以包括一个或多个CPU。当第二通信装置900是具有上述窄带终端设备功能的部件时,收发模块920可以是射频单元,处理模块910可以是处理器,例如基带处理器。当第二通信装置900是芯片系统时,收发模块920可以是芯片(例如基带芯片)的输入输出接口、处理模块910可以是芯片系统的处理器,可以包括一个或多个中央处理单元。应理解,本申请实施例中的处理模块910可以由处理器或处理器相关电路组件实现,收发模块920可以由收发器或收发器相关电路组件实现。The
例如,处理模块910可以用于执行图4所示的实施例中由窄带终端设备所执行的除了收发操作之外的全部操作,和/或用于支持本文所描述的技术的其它过程。收发模块920可以用于执行图4所示的实施例中由窄带终端设备所执行的全部收发操作,和/或用于支持本文所描述的技术的其它过程。For example, the
另外,关于收发模块920的实现方式,可参考对于收发模块820的实现方式的介绍。In addition, for the implementation manner of the
所述处理模块910,用于确定第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;通过收发模块920发送所述第一信号。The
一种可能的实现方式,所述第一信号在时域上包括6个符号。In a possible implementation manner, the first signal includes 6 symbols in the time domain.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第二个符号,所述PBCH在时域上位于第三个至第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the second symbol in the time domain, and the PBCH is located in the third to sixth symbols in the time domain.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第四个符号,所述PBCH在时域上位于第二个符号、第三个符号、第五个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fourth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fifth symbol and the sixth symbol.
一种可能的实现方式,所述PSS在时域上位于第一个符号,所述SSS在时域上位于第五个符号,所述PBCH在时域上位于第二个符号、第三个符号、第四个符号和第六个符号。In a possible implementation manner, the PSS is located in the first symbol in the time domain, the SSS is located in the fifth symbol in the time domain, and the PBCH is located in the second symbol and the third symbol in the time domain , the fourth symbol, and the sixth symbol.
一种可能的实现方式,所述方法还包括:A possible implementation, the method also includes:
所述PSS的序列是根据第一序列生成的;所述第一序列中包括第一移位值和第二移位值;The sequence of the PSS is generated according to the first sequence; the first sequence includes a first shift value and a second shift value;
其中,所述第一移位值为小于43的正整数;所述第二移位值是根据所述PSS的编号确定的,所述PSS的编号用于确定小区标识。Wherein, the first shift value is a positive integer less than 43; the second shift value is determined according to the number of the PSS, and the number of the PSS is used to determine a cell identity.
一种可能的实现方式,所述PSS的序列d k(n)满足: A possible implementation manner, the sequence d k (n) of the PSS satisfies:
d k(n)=1-2x(m) d k (n) = 1-2x (m)
其中,x(m)为第一序列;mod表示取模操作;n为小于127的正整数;所述K表示第一移位值; 的取值范围为{0,1,2},所述 表示PSS的编号;所述第二移位值是根据所述 确定。 Wherein, x(m) is the first sequence; mod represents a modulo operation; n is a positive integer less than 127; the K represents the first shift value; The value range of is {0,1,2}, the Indicates the number of the PSS; the second shift value is based on the Sure.
一种可能的实现方式,所述PBCH占用的频域位置与主所述PSS、所述SSS占用的频域位置相同;或者,所述PBCH占用的频域位置包括所述PSS和所述SSS占用的频域位置。A possible implementation manner, the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the main PSS and the SSS; or, the frequency domain position occupied by the PBCH includes the PSS and the SSS occupied frequency domain location.
一种可能的实现方式,所述PBCH在频域上占用的子载波数目为以下至少一项:144,72,或者121。In a possible implementation manner, the number of subcarriers occupied by the PBCH in the frequency domain is at least one of the following: 144, 72, or 121.
关于第二通信装置900所能实现的其他功能,可参考图4所示的实施例的相关介绍,不多赘述。For other functions that can be realized by the
本申请实施例还提供一种通信装置,该通信装置可以是网络设备也可以是电路。该通信装置可以用于执行上述方法实施例中由网络设备所执行的动作。The embodiment of the present application also provides a communication device, and the communication device may be a network device or a circuit. The communication device may be used to execute the actions performed by the network device in the foregoing method embodiments.
基于与上述通信方法相同的构思,如图10所示,本申请实施例还提供一种通信装置1000。通信装置1000可用于实现上述方法实施例中由网络设备所执行的方法,可以参见上述方法实施例中的说明,其中通信装置1000可以为网络设备、终端设备,车载设备,或者可以位于网络设备、终端设备或车载设备中,可以为发端设备或收端设备。Based on the same idea as the communication method above, as shown in FIG. 10 , an embodiment of the present application further provides a
通信装置1000包括一个或多个处理器1001。处理器1001可以是通用处理器或者专用处理器等。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,网络设备、终端设备、车载设备或芯片等)进行控制,执行软件程序,处理软件程序的数据。通信装置1000可以包括收发单元,用以实现信号的输入(接收)和输出(发送)。例如,收发单元可以为收发器,射频芯片等。The
通信装置1000包括一个或多个处理器1001,一个或多个处理器1001可实现上述所示的实施例中网络设备执行的方法。The
可选的,处理器1001除了可以实现上述所示的实施例中的方法,还可以实现其他功能。可选的,一种实现方式中,处理器1001可以执行计算机程序,使得通信装置1000执行上述方法实施例中网络设备所执行的方法。该计算机程序可以全部或部分存储在处理器1001内,如计算机程序1003,也可以全部或部分存储在与处理器1001耦合的存储器1002中,如计算机程序1104,也可以通过计算机程序1003和1004共同使得通信装置1000执行上述方法实施例中网络设备所执行的方法。Optionally, the
例如,处理器1001,用于确定第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;通过收发单元1005发送所述第一信号。For example, the
在又一种可能的实现方式中,通信装置1000也可以包括电路,该电路可以实现前述方法实施例中网络设备所执行的功能。In yet another possible implementation manner, the
在又一种可能的实现方式中,通信装置1000中可以包括一个或多个存储器1002,其上存储有计算机程序1004,该计算机程序可在处理器上被运行,使得通信装置1000执行上述方法实施例中描述的通信方法。可选的,存储器中还可以存储有数据。可选的,处理器中也可以存储计算机程序和/或数据。例如,上述一个或多个存储器1002可以存储上述实施例中所描述的关联或对应关系,或者上述实施例中所涉及的相关的参数或表格等。其中,处理器和存储器可以单独设置,也可以集成或耦合在一起。In yet another possible implementation manner, the
在又一种可能的实现方式中,通信装置1000还可以包括收发单元1005。处理器1001可以称为处理单元,对通信装置(第一通信装置或第二通信装置)进行控制。收发单元1005 可以称为收发机、收发电路、或者收发器等,用于实现数据或控制信令的收发。In yet another possible implementation manner, the
例如,如果通信装置1000为应用于通信设备中的芯片或者其他具有上述通信设备功能的组合器件、部件等,通信装置1000中可以包括收发单元1005。For example, if the
在又一种可能的实现方式中,通信装置1000还可以包括收发单元1005以及天线1006。处理器1001可以称为处理单元,对第一通信装置进行控制。收发单元1005可以称为收发机、收发电路、或者收发器等,用于通过天线1006实现装置的收发功能。In yet another possible implementation manner, the
基于与上述通信方法相同的构思,如图11所示,本申请实施例还提供一种第二通信装置1100。第二通信装置1100可用于实现上述方法实施例中由窄带终端设备所执行的方法,可以参见上述方法实施例中的说明,其中第二通信装置1100可以为窄带终端设备,或者可以位于窄带终端设备中,可以为发端设备或收端设备。Based on the same idea as the communication method above, as shown in FIG. 11 , the embodiment of the present application further provides a
第二通信装置1100包括一个或多个处理器1101。处理器1101可以是通用处理器或者专用处理器等。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,网络设备、终端设备、车载设备或芯片等)进行控制,执行软件程序,处理软件程序的数据。第二通信装置1100可以包括收发单元,用以实现信号的输入(接收)和输出(发送)。例如,收发单元可以为收发器,射频芯片等。The
第二通信装置1100包括一个或多个处理器1101,一个或多个处理器1101可实现上述所示的实施例中窄带终端设备执行的方法。The
例如,处理器1101,用于通过收发单元1105接收第一信号;其中,所述第一信号包括PSS、SSS和PBCH;所述PSS、所述SSS和所述PBCH在时域上位于不同的符号;所述SSS与所述PSS在时域上相邻,或者,所述SSS与所述PSS在时域上间隔至少2个符号;处理器1101,用于根据接收的所述第一信号进行时频同步和/或获取系统消息。For example, the
可选的,处理器1101除了可以实现上述所示的实施例中的方法,还可以实现其他功能。可选的,一种实现方式中,处理器1101可以执行计算机程序,使得第二通信装置1100执行上述方法实施例中窄带终端设备所执行的方法。该计算机程序可以全部或部分存储在处理器1101内,如计算机程序1103,也可以全部或部分存储在与处理器1101耦合的存储器1102中,如计算机程序1104,也可以通过计算机程序1103和1104共同使得第二通信装置1100执行上述方法实施例中窄带终端设备所执行的方法。Optionally, the
在又一种可能的实现方式中,第二通信装置1100也可以包括电路,该电路可以实现前述方法实施例中窄带终端设备所执行的功能。In yet another possible implementation manner, the
在又一种可能的实现方式中,第二通信装置1100中可以包括一个或多个存储器1102,其上存储有计算机程序1104,该计算机程序可在处理器上被运行,使得第二通信装置1100执行上述方法实施例中描述的通信方法。可选的,存储器中还可以存储有数据。可选的,处理器中也可以存储计算机程序和/或数据。例如,上述一个或多个存储器1102可以存储上述实施例中所描述的关联或对应关系,或者上述实施例中所涉及的相关的参数或表格等。其中,处理器和存储器可以单独设置,也可以集成或耦合在一起。In yet another possible implementation, the
在又一种可能的实现方式中,第二通信装置1100还可以包括收发单元1105。处理器1101可以称为处理单元,对第二通信装置进行控制。收发单元1105可以称为收发机、收发电路、或者收发器等,用于实现数据或控制信令的收发。In yet another possible implementation manner, the
例如,如果第二通信装置1100为应用于通信设备中的芯片或者其他具有上述通信设备功能的组合器件、部件等,第二通信装置1100中可以包括收发单元1105。For example, if the
在又一种可能的实现方式中,第二通信装置1100还可以包括收发单元1105以及天线1106。处理器1101可以称为处理单元,对第二通信装置进行控制。收发单元1105可以称为收发机、收发电路、或者收发器等,用于通过天线1106实现装置的收发功能。In yet another possible implementation manner, the
应注意,本申请实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的计算机程序完成。上述的处理器可以是通用处理器、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。可以实现或者执行本申请实施例中公开的各方法、步骤及逻辑框图。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。结合本申请实施例公开的方法步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiment may be completed by an integrated logic circuit of hardware in a processor or a computer program in the form of software. The aforementioned processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The method steps disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
可以理解,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(dynamic RAM,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)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It can 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 RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random 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 (synchlink DRAM, SLDRAM ) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.
本申请实施例还提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被计算机执行时实现上述应用于网络设备或窄带终端设备的任一方法实施例所述的方法。The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a computer, the method described in any method embodiment above applied to a network device or a narrowband terminal device is implemented.
本申请实施例还提供一种计算机程序产品,该计算机程序产品被计算机执行时实现上述应用于网络设备或窄带终端设备的任一方法实施例所述的方法。An embodiment of the present application further provides a computer program product, which implements the method described in any method embodiment above applied to a network device or a narrowband terminal device when the computer program product is executed by a computer.
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行计算机程序时,全部或部分地产生按照本申请实施例所述的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机程序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,计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(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。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成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. A computer program product consists of one or more computer programs. When the computer program is loaded and 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 can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program can be transmitted from a website site, computer, server or data center by wire ( Such as coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website site, computer, server or data center. 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, a data center, etc. integrated with one or more available media. Available media may be magnetic media (e.g., floppy disk, hard disk, magnetic tape), optical media (e.g., high-density digital video disc (digital video disc, DVD)), or semiconductor media (e.g., solid state disk (solid state disk, SSD) )wait.
本申请实施例还提供一种通信装置,包括处理器和接口;处理器,用于执行上述应用于网络设备或窄带终端设备的任一方法实施例所述的方法。The embodiment of the present application also provides a communication device, including a processor and an interface; the processor is configured to execute the method described in any method embodiment applied to a network device or a narrowband terminal device.
应理解,上述处理装置可以是一个芯片,处理器可以通过硬件实现也可以通过软件实现,当通过硬件实现时,该处理器可以是逻辑电路、集成电路等;当通过软件实现时,该处理器可以是一个通用处理器,通过读取存储器中存储的软件代码实现,该存储器可以集成在处理器中,也可以位于处理器之外,独立存在。It should be understood that the above-mentioned processing device may be a chip, and the processor may be implemented by hardware or by software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor It may be a general-purpose processor, which is implemented by reading software codes stored in the memory, and the memory may be integrated in the processor, or located outside the processor and exist independently.
本申请实施例提供一种通信系统。该通信系统可以包括上述的图4所示的实施例所涉及的网络设备或窄带终端设备。An embodiment of the present application provides a communication system. The communication system may include the network device or the narrowband terminal device involved in the above-mentioned embodiment shown in FIG. 4 .
本申请实施例还提供一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,该计算机程序被计算机执行时,所述计算机可以实现上述方法实施例提供的图4所示的实施例中与网络设备或窄带终端设备相关的流程。The embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a computer, the computer can implement the method shown in FIG. 4 provided by the above-mentioned method embodiment. Processes related to network devices or narrowband terminal devices in the embodiments.
本申请实施例还提供一种计算机程序产品,所述计算机程序产品用于存储计算机程序,该计算机程序被计算机执行时,所述计算机可以实现上述方法实施例提供的图4所示的实施例中与网络设备和窄带终端设备相关的流程。The embodiment of the present application also provides a computer program product, the computer program product is used to store a computer program, when the computer program is executed by a computer, the computer can implement the embodiment shown in Figure 4 provided by the above method embodiment Processes related to network equipment and narrowband terminal equipment.
应理解,本申请实施例中提及的处理器可以是CPU,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 mentioned in the embodiment of the present application may be a CPU, or other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), 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,本申请实施例中提及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(dynamic RAM,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 mentioned 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 RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random 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 (synchlink DRAM, SLDRAM ) and direct memory bus random access memory (direct rambus RAM, DR RAM).
需要说明的是,当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时,存储器(存储模块)集成在处理器中。It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) is integrated in the processor.
应注意,本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
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,上述描述的系统、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,所揭露的系统、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系统,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。以此为例但不限于:计算机可读介质可以包括随机存取存储器(random access memory,RAM)、只读存储器(read-only memory,ROM)、电可擦可编程只读存储器(electrically erasable programmable read only memory,EEPROM)、紧凑型光盘只读存储器(compact disc read-only memory,CD-ROM)、通用串行总线闪存盘(universal serial bus flash disk)、移动硬盘、或其他光盘存储、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。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 computer-readable storage medium may be any available medium that can be accessed by a computer. Take this as an example but not limited to: the computer readable medium may include a random access memory (random access memory, RAM), a read-only memory (read-only memory, ROM), an electrically erasable programmable read-only memory (electrically erasable programmable read only memory, EEPROM), compact disc read-only memory (CD-ROM), universal serial bus flash disk (universal serial bus flash disk), mobile hard disk, or other optical disk storage, disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
以上所述,仅为本申请的具体实施方式,但本申请实施例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实施例揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请实施例的保护范围之内。因此,本申请实施例的保护范围应所述以权利要求的保护范围为准。The above is only the specific implementation of the application, but the protection scope of the embodiment of the application is not limited thereto, and any skilled person familiar with the technical field can easily think of changes within the technical scope disclosed in the embodiment of the application Or replacement, should be covered within the scope of protection of the embodiments of the present application. Therefore, the scope of protection of the embodiments of the present application should be based on the scope of protection of the claims.
Claims (24)
- A method of communication, comprising:determining a first signal;wherein, the first signal includes a primary synchronization signal PSS, a secondary synchronization signal SSS and a physical broadcast channel PBCH;the PSS, SSS and PBCH are located in different symbols in the time domain; the SSS is adjacent to the PSS, or the SSS is spaced from the PSS in the time domain by at least 2 symbols;and transmitting the first signal.
- The method of claim 1, wherein the first signal comprises 6 symbols in the time domain.
- The method of claim 1 or 2, wherein,the PSS is located in a first symbol in the time domain, the SSS is located in a second symbol in the time domain, and the PBCH is located in third to sixth symbols in the time domain.
- The method of claim 1 or 2, wherein,the PSS is located in a first symbol in the time domain, the SSS is located in a fourth symbol in the time domain, and the PBCH is located in a second symbol, a third symbol, a fifth symbol, and a sixth symbol in the time domain.
- The method of claim 1 or 2, wherein,the PSS is located in a first symbol in the time domain, the SSS is located in a fifth symbol in the time domain, and the PBCH is located in a second symbol, a third symbol, a fourth symbol, and a sixth symbol in the time domain.
- The method of any one of claims 1-5, wherein the method further comprises:the sequence of the PSS is generated according to the first sequence; the first sequence comprises a first shift value and a second shift value;wherein the first shift value is a positive integer less than 43; the second shift value is determined according to the number of the PSS, which is used to determine the cell identity.
- The method of claim 6, wherein the sequence d of PSS k (n) satisfies:d k (n)=1-2x(m)
- The method of any one of claim 1 to 7,the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the PSS and the SSS; or,the frequency domain positions occupied by the PBCH comprise the frequency domain positions occupied by the PSS and the SSS.
- The method of any of claims 1-8, wherein the number of subcarriers occupied by the PBCH in the frequency domain is at least one of: 144 72, or 121.
- A method of communication, comprising:receiving a first signal;wherein, the first signal includes a primary synchronization signal PSS, a secondary synchronization signal SSS and a physical broadcast channel PBCH;the PSS, SSS and PBCH are located in different symbols in the time domain; the SSS is adjacent to the PSS in the time domain, or the SSS is spaced from the PSS by at least 2 symbols in the time domain;and carrying out time-frequency synchronization and/or acquiring a system message according to the received first signal.
- The method of claim 10, wherein the first signal comprises 6 symbols in the time domain.
- The method of claim 10 or 11, wherein,the PSS is located in a first symbol in the time domain, the SSS is located in a second symbol in the time domain, and the PBCH is located in third to sixth symbols in the time domain.
- The method of claim 10 or 11, wherein,the PSS is located in a first symbol in the time domain, the SSS is located in a fourth symbol in the time domain, and the PBCH is located in a second symbol, a third symbol, a fifth symbol, and a sixth symbol in the time domain.
- The method of claim 10 or 11, wherein,the PSS is located in a first symbol in the time domain, the SSS is located in a fifth symbol in the time domain, and the PBCH is located in a second symbol, a third symbol, a fourth symbol, and a sixth symbol in the time domain.
- The method of any one of claims 10-14, wherein the method further comprises:the sequence of the PSS is generated according to the first sequence; the first sequence comprises a first shift value and a second shift value;wherein the first shift value is a positive integer less than 43; the second shift value is determined according to the number of the PSS, which is used for determining the cell identity.
- The method of claim 15, wherein the sequence d of PSS k (n) satisfies:d k (n)=1-2x(m)
- The method according to any of claims 10-16, wherein the frequency domain position occupied by the PBCH is the same as the frequency domain position occupied by the PSS, SSS; or,the frequency domain positions occupied by the PBCH comprise the frequency domain positions occupied by the PSS and the SSS.
- The method of any of claims 10-16, wherein the number of subcarriers occupied by the PBCH in the frequency domain is one of: 144 72, or 121.
- A communication device comprising a processing module and a transceiver module, wherein the processing module is coupled to the transceiver module for performing the method of any of claims 1-9.
- A communication device comprising a processing module and a transceiver module, wherein the processing module is coupled to the transceiver module for performing the method of any of claims 10-18.
- A computer readable storage medium for storing a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 9 or causes the computer to perform the method of any one of claims 10 to 18.
- A computer program product comprising computer program instructions which, when run on a processor, cause the method of any one of claims 1 to 18 to be performed.
- A communication system comprising a communication device according to claim 19 and comprising a communication device according to claim 20.
- A chip comprising a processor and a communication interface, the processor being configured to read instructions through the communication interface to perform the method of any one of claims 1 to 9 or to perform the method of any one of claims 10 to 18.
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