WO2018119792A1 - Antenna calibration method, device, and base station - Google Patents
Antenna calibration method, device, and base station Download PDFInfo
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- WO2018119792A1 WO2018119792A1 PCT/CN2016/112759 CN2016112759W WO2018119792A1 WO 2018119792 A1 WO2018119792 A1 WO 2018119792A1 CN 2016112759 W CN2016112759 W CN 2016112759W WO 2018119792 A1 WO2018119792 A1 WO 2018119792A1
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- time slot
- base station
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- silent time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Definitions
- Embodiments of the present invention relate to a wireless communication technology, and in particular, to an antenna calibration method, apparatus, and base station.
- the uplink physical propagation channel and the downlink physical propagation channel can theoretically be considered to have Reciprocity.
- the RF end of each antenna requires two sets of circuits to complete the transmission and reception of signals. Due to hardware process errors, nonlinear distortion of the amplifier, and the influence of operating frequency, time, and external environment (such as temperature, humidity, etc.) on the characteristic response of each RF circuit, it is difficult to realize two sets of circuits on the RF side. Fully consistent features.
- the transmit channel and the receive channel equivalently multiply the channel by different coefficients, resulting in impaired channel reciprocity.
- the RF channel needs to be calibrated to ensure multiple remote radio units (Radio Remote Unit, RRU for short).
- the RF side transmits the channel amplitude and phase consistency.
- the method for calibrating the radio frequency channel is: the base station system sends the same receiving channel correction sequence to each radio frequency end by using the reference transmitting channel, and each receiving channel of the base station system receives the receiving channel correction sequence according to the receiving channel.
- the correction sequence calculates a correction coefficient of the corresponding receiving channel, and performs amplitude phase calibration on the corresponding receiving channel according to the correction coefficient.
- the radio frequency channel calibration process is completed according to the receiving channel correction sequence received by the base station system, if the receiving channel of the base station system receives other external signal input, for example, the UE sends an uplink signal, the base station receives the channel.
- the signal-to-noise ratio of the mid-calibration sequence is reduced, resulting in reduced calibration accuracy or even calibration failure.
- an embodiment of the invention provides an antenna calibration method, a device and a base station, which are used to solve the technical problem that the calibration accuracy of the base station system in the prior art is low.
- an embodiment of the present invention provides an antenna calibration method, where the method includes:
- the base station determines the location and duration of the silent time slot, wherein the base station and the terminal do not send and receive signals in the silent time slot; the base station performs antenna calibration in the silent time slot, thereby preventing the base station from performing antenna calibration
- the calibration sequence in the receiving channel is interfered by external signals, ensuring the accuracy of the antenna calibration.
- the base station determines the silent time slot according to the antenna calibration requirement, and can effectively use the time slot resource to perform normal signal transmission and reception while ensuring the calibration accuracy.
- the base station further includes: sending, by the base station, indication information, where the indication information includes: a location and a duration of the silent time slot.
- the sending, by the base station, the indication information to the terminal includes:
- the base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
- the base station ensures that the terminal can stop transmitting and receiving signals in the silent time slot by transmitting indication information to the terminal in advance before the silent time slot.
- the method further includes: the base station determining an appearance period of the silent slot.
- the base station system and the terminal are periodically kept silent by determining the occurrence period of the silent time slot for the base station system to periodically calibrate the antenna.
- the duration of the silent time slot is greater than the duration of the preset guard interval GP, so that the base station system can ensure sufficient antenna calibration time to ensure the smooth completion of the calibration process.
- an embodiment of the present invention further provides an antenna calibration apparatus, including:
- a determining module configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
- a calibration module for performing antenna calibration within the silent time slot.
- the determining module is specifically configured to:
- the device further includes:
- a sending module configured to send indication information to the terminal after the determining module determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
- the sending module is specifically configured to:
- the base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
- the determining module is further configured to:
- a period of occurrence of the silent time slot is determined.
- the duration of the silent time slot is greater than the duration of the preset guard interval GP.
- the antenna calibration apparatus provided by the second aspect is configured to perform the antenna calibration method provided by the first aspect, and the technical effect thereof is similar to the antenna calibration method.
- an embodiment of the present invention further provides a base station, including:
- a processor configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
- the processor is further configured to perform antenna calibration in the silent time slot.
- the processor is specifically configured to:
- the base station further includes:
- a transmitter configured to send indication information to the terminal after the processor determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
- the transmitter is specifically configured to:
- the indication information is sent to the terminal at a preset duration position before the start time of the silent time slot.
- the processor is further configured to:
- a period of occurrence of the silent time slot is determined.
- the duration of the silent time slot is greater than the duration of the preset guard interval GP.
- a base station provided by the third aspect, for performing the antenna calibration method provided by the first aspect The technical effect is similar to the antenna calibration method.
- an embodiment of the present invention further provides a base station, including a processor and a memory, where the memory stores program instructions, and the processor is configured to invoke program instructions in the memory to implement the first aspect.
- Antenna calibration method is configured to invoke program instructions in the memory to implement the first aspect.
- the antenna calibration method, device and base station provided by the embodiments of the present invention determine the location and duration of the silent time slot by the base station, and the base station and the terminal do not send and receive signals in the silent time slot, and the base station performs antenna calibration in the silent time slot, thereby preventing The calibration sequence in the receiving channel is interfered by the external signal during the antenna calibration process, which ensures the accuracy of the antenna calibration.
- FIG. 1 is a schematic flow chart of an antenna calibration method according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a calibration time slot determined by an antenna calibration method according to an embodiment of the present invention
- TTI Transmission Time Interval
- FIG. 4 is a schematic diagram of a base station scheduling configuration silent time slot according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of determining, by a base station, a period of occurrence of a silent time slot according to an embodiment of the present invention
- FIG. 6 is a schematic diagram of a radio frequency channel calibration structure of a base station system according to an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of an antenna calibration apparatus according to an embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
- FIG. 9 is another schematic structural diagram of a base station according to an embodiment of the present invention.
- the base station system In order to eliminate the influence of the deviation between the receiving channel and the transmitting channel of each RF terminal on the channel during the wireless communication process and ensure the reciprocity of the RF channel, the base station system usually needs to calibrate the RF channel to ensure multiple remote RF modules. (Radio Remote Unit, RRU for short) The amplitude and phase consistency of the transmission channel of the radio end. In order to prevent the base station system from performing RF channel calibration The embodiment of the present invention provides an antenna calibration method, apparatus, and base station for ensuring successful completion of the calibration process.
- FIG. 1 is a schematic flowchart of an antenna calibration method according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of a calibration time slot determined by an antenna calibration method according to an embodiment of the present invention.
- an embodiment of the present invention provides an antenna calibration method, where an execution body of the antenna calibration method is a base station.
- the method includes:
- the base station determines a location and a duration of the silent time slot, where the base station and the terminal do not send and receive signals in the silent time slot.
- the base station determines a normal service time slot and a silent time slot of the radio frame, where the base station may send a downlink signal or receive an uplink signal in the normal service time slot; when the base station is in the silent state Neither the signal nor the signal is received in the slot.
- the determining the location and duration of the silent time slot includes:
- the base station acquires an antenna calibration requirement
- the base station determines the location and duration of the silent time slot according to the antenna calibration requirement.
- the base station may acquire an antenna calibration requirement by monitoring a change of a characteristic parameter of the base station system.
- the characteristic parameters of the base station system may be the operating frequency of the radio frequency circuit or the temperature and humidity of the external environment.
- the antenna calibration requirement can be issued when the change of the characteristic parameter exceeds a preset threshold.
- the method further includes:
- the base station sends indication information to the terminal, where the indication information includes: a location and a duration of the silent time slot.
- FIG. 3 is a schematic structural diagram of a transmission time interval (TTI) according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of a base station scheduling configuration silent time slot according to an embodiment of the present invention.
- TTI transmission time interval
- the silent time slot may be part of a specific TTI or an entire TTI time slot section.
- the base station after acquiring the antenna calibration requirement, the base station sends downlink control indication information to the terminal through the downlink control channel, indicating that the terminal remains silent in the silent time slot, and stops The base station transmits signals and receives signals from a base station.
- the sending, by the base station, the indication information to the terminal includes:
- the base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
- the base station ensures that the terminal can stop transmitting and receiving signals in the silent time slot by transmitting indication information to the terminal in advance before the silent time slot.
- the base station can determine the location and duration of the silent time slot in real time according to the calibration requirement, so that the base station system can ensure that more time slots can be used for normal data transmission and reception when the antenna calibration is not needed, thereby ensuring that the base station system can While the antenna is accurately calibrated, system scheduling resources are saved.
- the base station system may also determine an appearance period of the silent slot.
- the base station system and the terminal are periodically kept silent by determining the occurrence period of the silent time slot for the base station system to periodically calibrate the antenna.
- the duration of the silent time slot is greater than the duration of the preset guard interval GP. Setting the duration of the silent time slot to be longer than the preset protection interval GP can ensure that the base station system has sufficient antenna calibration time to ensure the smooth completion of the calibration process.
- FIG. 5 is a schematic diagram of a base station determining a period of occurrence of a silent slot according to an embodiment of the present invention.
- the base station system may determine a fixed position of a time slot entering a silent state, and enter a silent state at a fixed position of the time slot according to an appearance period of the silent time slot, where the base station And the terminal stops transmitting and receiving signals at the same time.
- the period of occurrence of the silent time slot can be specified by a protocol.
- the period can be any length of time, for example: 1024 minutes, 30 minutes, and the like.
- the setting can be made in advance according to the antenna performance of the base station system.
- S102 The base station performs antenna calibration in the silent time slot.
- FIG. 6 is a schematic diagram of a radio frequency channel calibration structure of a base station system according to an embodiment of the present invention. Specifically, the process of performing antenna calibration by the base station is as shown in FIG. 6.
- the radio frequency channel calibration structure of the base station system in the embodiment of the present invention includes a reference transmission channel, a radio frequency antenna splitter, and a receiving channel.
- the receiving channel correction sequence is sent to the plurality of radio frequency antennas through the reference transmitting channel, and the receiving channel of each radio frequency antenna is calculated according to the correction sequence.
- a corresponding radio frequency correction coefficient is obtained, and the receiving channel is calibrated according to the radio frequency correction coefficient.
- the antenna calibration method provided by the embodiment of the present invention determines the location and time of the silent time slot by the base station. Long, the base station and the terminal do not send and receive signals in the silent time slot, and the base station performs antenna calibration in the silent time slot, thereby preventing the base station from being interfered by the external signal in the calibration sequence in the receiving channel during the antenna calibration process, thereby ensuring The accuracy of the antenna calibration.
- FIG. 7 is a schematic structural diagram of an antenna calibration apparatus according to an embodiment of the present invention.
- an antenna calibration apparatus includes:
- a determining module 710 configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
- the calibration module 720 is configured to perform antenna calibration within the silent time slot.
- the determining module 710 is specifically configured to:
- the device further includes:
- the sending module 730 is configured to send, to the terminal, indication information after the determining module determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
- the sending module 730 is specifically configured to:
- the base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
- the determining module 710 is further configured to:
- a period of occurrence of the silent time slot is determined.
- the duration of the silent time slot is greater than the duration of the preset guard interval GP.
- the antenna calibration apparatus provided by the embodiment of the present invention is used to perform the antenna calibration method provided by the foregoing method embodiment.
- the specific implementation manner and technical effects are similar to the method embodiments, and are not described herein again.
- FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
- a base station provided by an embodiment of the present invention includes:
- the processor 810 is configured to determine a location and duration of the silent time slot, where the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
- the processor 810 is further configured to perform antenna calibration in the silent time slot.
- the processor 810 is specifically configured to:
- the base station further includes:
- the transmitter 820 is configured to send indication information to the terminal after the processor 810 determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
- the transmitter 820 is specifically configured to:
- the indication information is sent to the terminal at a preset duration position before the start time of the silent time slot.
- processor 810 is further configured to:
- a period of occurrence of the silent time slot is determined.
- the duration of the silent time slot is greater than the duration of the preset guard interval GP.
- the base station provided by the embodiment of the present invention is configured to perform the antenna calibration method provided by the foregoing method embodiment, and the specific implementation manner and the technical effect are similar to the method embodiment, and details are not described herein again.
- FIG. 9 is another schematic structural diagram of a base station according to an embodiment of the present invention.
- a base station provided by an embodiment of the present invention includes:
- the processor 910 and the memory 920 stores a program instruction
- the processor 910 is configured to invoke the program instruction in the memory to implement the antenna calibration method provided by the foregoing method embodiment, and the specific implementation manner thereof
- the technical effects are similar to the method embodiments, and are not described herein again.
- the aforementioned program can be stored in a computer readable storage medium.
- the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
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Abstract
Provided in embodiments of the present invention are an antenna calibration method, device, and base station. The method comprises: a base station determining a position and duration of a silent time slot, wherein none of the base station and terminals receives or transmits a signal within the silent time slot; and the base station performing antenna calibration during the silent time slot. The antenna calibration method, device, and base station provided in the embodiments of the present invention can be employed to prevent interference of an external signal while a base station is receiving a calibration sequence in a channel during an antenna calibration process, thus ensuring precision of antenna calibration.
Description
本发明实施例涉及无线通信技术,尤其涉及一种天线校准方法、装置及基站。Embodiments of the present invention relate to a wireless communication technology, and in particular, to an antenna calibration method, apparatus, and base station.
在无线通信***中,对于时分双工(Time Division Duplexing,简称:TDD)基站***,由于上行链路和下行链路使用相同的载频,理论上可认为上行物理传播信道和下行物理传播信道具有互易性。但是在实际实现过程中,每根天线的射频端需要两套电路来分别完成信号的发送和接收。由于硬件方面的工艺误差,放大器的非线性失真,以及工作频率、时间以及外部环境(如温度、湿度等)等因素对每个射频电路的特征响应的影响,很难实现射频端的两套电路具有完全一致的特性。因此,对于基带信号来说,发送通道和接收通道等效地对信道乘以不同的系数,导致了信道的互易性受损。为了消除各个射频端接收通道和发送通道之间的偏差对信道的影响,保证射频通道的互易性,需要对射频通道进行校准,以保证多个远端射频模块(Radio Remote Unit,简称:RRU)的射频端发送通道幅度和相位的一致性。In a wireless communication system, for a Time Division Duplexing (TDD) base station system, since the uplink and downlink use the same carrier frequency, the uplink physical propagation channel and the downlink physical propagation channel can theoretically be considered to have Reciprocity. However, in the actual implementation process, the RF end of each antenna requires two sets of circuits to complete the transmission and reception of signals. Due to hardware process errors, nonlinear distortion of the amplifier, and the influence of operating frequency, time, and external environment (such as temperature, humidity, etc.) on the characteristic response of each RF circuit, it is difficult to realize two sets of circuits on the RF side. Fully consistent features. Thus, for a baseband signal, the transmit channel and the receive channel equivalently multiply the channel by different coefficients, resulting in impaired channel reciprocity. In order to eliminate the influence of the deviation between the receiving channel and the transmitting channel of each RF terminal on the channel and ensure the reciprocity of the RF channel, the RF channel needs to be calibrated to ensure multiple remote radio units (Radio Remote Unit, RRU for short). The RF side transmits the channel amplitude and phase consistency.
现有技术中,对射频通道进行校准的方法是:基站***通过参考发射通道向各个射频端发送相同的接收通道校正序列,基站***的各个接收通道接收到该接收通道校正序列后根据该接收通道校正序列计算对应的接收通道的校正系数,并根据该校正系数对所述对应的接收通道进行幅度相位校准。In the prior art, the method for calibrating the radio frequency channel is: the base station system sends the same receiving channel correction sequence to each radio frequency end by using the reference transmitting channel, and each receiving channel of the base station system receives the receiving channel correction sequence according to the receiving channel. The correction sequence calculates a correction coefficient of the corresponding receiving channel, and performs amplitude phase calibration on the corresponding receiving channel according to the correction coefficient.
由于射频通道校准过程是根据基站***接收到的接收通道校正序列来完成的,如果校准时刻,所述基站***的接收通道还接收到其它外部信号输入,例如UE发送上行信号,会导致基站接收通道中校准序列的信噪比下降,导致校准精度降低甚至校准失败。
Since the radio frequency channel calibration process is completed according to the receiving channel correction sequence received by the base station system, if the receiving channel of the base station system receives other external signal input, for example, the UE sends an uplink signal, the base station receives the channel. The signal-to-noise ratio of the mid-calibration sequence is reduced, resulting in reduced calibration accuracy or even calibration failure.
发明内容Summary of the invention
本发明实施例提供一种天线校准方法、装置及基站,用于解决现有技术中基站***进行天线校准时校准精度较低的技术问题。第一方面,本发明实施例提供一种天线校准方法,所述方法包括:The embodiment of the invention provides an antenna calibration method, a device and a base station, which are used to solve the technical problem that the calibration accuracy of the base station system in the prior art is low. In a first aspect, an embodiment of the present invention provides an antenna calibration method, where the method includes:
基站确定静默时隙的位置和时长,其中,基站和终端在所述静默时隙内均不收发信号;基站在所述静默时隙内进行天线校准,从而防止了基站在进行天线校准的过程中接收通道中的校准序列受到外部信号的干扰,保证了天线校准的精度。The base station determines the location and duration of the silent time slot, wherein the base station and the terminal do not send and receive signals in the silent time slot; the base station performs antenna calibration in the silent time slot, thereby preventing the base station from performing antenna calibration The calibration sequence in the receiving channel is interfered by external signals, ensuring the accuracy of the antenna calibration.
可选地,所述基站确定静默时隙的位置和时长,包括:所述基站获取天线校准需求;所述基站根据所述天线校准需求,确定所述静默时隙的位置和时长。Optionally, the determining, by the base station, a location and a duration of the silent time slot, the base station acquiring an antenna calibration requirement, and determining, by the base station, a location and a duration of the silent time slot according to the antenna calibration requirement.
基站根据天线校准需求确定静默时隙,可以在保证校准精度的同时有效地利用时隙资源进行信号的正常收发。The base station determines the silent time slot according to the antenna calibration requirement, and can effectively use the time slot resource to perform normal signal transmission and reception while ensuring the calibration accuracy.
可选地,所述基站确定静默时隙的位置和时长之后,还包括:所述基站向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。Optionally, after the determining, by the base station, the location and the duration of the silent time slot, the base station further includes: sending, by the base station, indication information, where the indication information includes: a location and a duration of the silent time slot.
可选地,所述基站向所述终端发送指示信息,包括:Optionally, the sending, by the base station, the indication information to the terminal includes:
所述基站在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
所述基站通过在所述静默时隙之前提前向所述终端发送指示信息,从而确保所述终端能在所述静默时隙中停止收发信号。The base station ensures that the terminal can stop transmitting and receiving signals in the silent time slot by transmitting indication information to the terminal in advance before the silent time slot.
可选地,所述方法还包括:所述基站确定所述静默时隙的出现周期。通过确定所述静默时隙的出现周期,使得基站***及终端周期性地保持静默,用于所述基站***周期性地对天线进行校准。Optionally, the method further includes: the base station determining an appearance period of the silent slot. The base station system and the terminal are periodically kept silent by determining the occurrence period of the silent time slot for the base station system to periodically calibrate the antenna.
可选地,所述静默时隙的时长大于预设保护间隔GP的时长,从而可以保证基站***具有足够的天线校准时间,保证校准过程的顺利完成。Optionally, the duration of the silent time slot is greater than the duration of the preset guard interval GP, so that the base station system can ensure sufficient antenna calibration time to ensure the smooth completion of the calibration process.
第二方面,本发明实施例还提供一种天线校准装置,包括:In a second aspect, an embodiment of the present invention further provides an antenna calibration apparatus, including:
确定模块,用于确定静默时隙的位置和时长,其中,所述静默时隙内所述天线校准装置和终端均不收发信号;a determining module, configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
校准模块,用于在所述静默时隙内进行天线校准。A calibration module for performing antenna calibration within the silent time slot.
可选地,所述确定模块,具体用于:
Optionally, the determining module is specifically configured to:
获取天线校准需求参数;Obtain antenna calibration requirement parameters;
根据所述天线校准需求参数,确定所述静默时隙的位置和时长。Determining the location and duration of the silent time slot based on the antenna calibration requirement parameter.
可选地,所述装置还包括:Optionally, the device further includes:
发送模块,用于在所述确定模块确定静默时隙的位置和时长之后,向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。And a sending module, configured to send indication information to the terminal after the determining module determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
可选地,所述发送模块,具体用于:Optionally, the sending module is specifically configured to:
所述基站在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
可选地,所述确定模块,还用于:Optionally, the determining module is further configured to:
确定所述静默时隙的出现周期。A period of occurrence of the silent time slot is determined.
可选地,所述静默时隙的时长大于预设保护间隔GP的时长。Optionally, the duration of the silent time slot is greater than the duration of the preset guard interval GP.
第二方面所提供的天线校准装置,用于执行第一方面所提供的天线校准方法,其技术效果与所述天线校准方法类似。The antenna calibration apparatus provided by the second aspect is configured to perform the antenna calibration method provided by the first aspect, and the technical effect thereof is similar to the antenna calibration method.
第三方面,本发明实施例还提供一种基站,包括:In a third aspect, an embodiment of the present invention further provides a base station, including:
处理器,用于确定静默时隙的位置和时长,其中,所述静默时隙内所述天线校准装置和终端均不收发信号;a processor, configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
所述处理器,还用于在所述静默时隙内进行天线校准。The processor is further configured to perform antenna calibration in the silent time slot.
可选地,所述处理器,具体用于:Optionally, the processor is specifically configured to:
获取天线校准需求参数;Obtain antenna calibration requirement parameters;
根据所述天线校准需求参数,确定所述静默时隙的位置和时长。Determining the location and duration of the silent time slot based on the antenna calibration requirement parameter.
可选地,所述基站还包括:Optionally, the base station further includes:
发送器,用于在所述处理器确定静默时隙的位置和时长之后,向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。And a transmitter, configured to send indication information to the terminal after the processor determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
可选地,所述发送器,具体用于:Optionally, the transmitter is specifically configured to:
在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The indication information is sent to the terminal at a preset duration position before the start time of the silent time slot.
可选地,所述处理器,还用于:Optionally, the processor is further configured to:
确定所述静默时隙的出现周期。A period of occurrence of the silent time slot is determined.
可选地,所述静默时隙的时长大于预设保护间隔GP的时长。Optionally, the duration of the silent time slot is greater than the duration of the preset guard interval GP.
第三方面所提供的基站,用于执行第一方面所提供的天线校准方法,其
技术效果与所述天线校准方法类似。a base station provided by the third aspect, for performing the antenna calibration method provided by the first aspect,
The technical effect is similar to the antenna calibration method.
第四方面,本发明实施例还提供一种基站,包括处理器及存储器,所述存储器中存储有程序指令,所述处理器用于调用所述存储器中的程序指令,用以实现第一方面提供的天线校准方法。In a fourth aspect, an embodiment of the present invention further provides a base station, including a processor and a memory, where the memory stores program instructions, and the processor is configured to invoke program instructions in the memory to implement the first aspect. Antenna calibration method.
本发明实施例提供的天线校准方法、装置及基站,通过基站确定静默时隙的位置和时长,基站和终端在静默时隙内均不收发信号,基站在静默时隙内进行天线校准,从而防止了基站在进行天线校准的过程中接收通道中的校准序列受到外部信号的干扰,保证了天线校准的精度。The antenna calibration method, device and base station provided by the embodiments of the present invention determine the location and duration of the silent time slot by the base station, and the base station and the terminal do not send and receive signals in the silent time slot, and the base station performs antenna calibration in the silent time slot, thereby preventing The calibration sequence in the receiving channel is interfered by the external signal during the antenna calibration process, which ensures the accuracy of the antenna calibration.
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.
图1为本发明实施例天线校准方法的流程示意图;1 is a schematic flow chart of an antenna calibration method according to an embodiment of the present invention;
图2为本发明实施例天线校准方法确定的校准时隙示意图;2 is a schematic diagram of a calibration time slot determined by an antenna calibration method according to an embodiment of the present invention;
图3为本发明实施例传输时间间隔(Transmission Time Interval,简称:TTI)的结构示意图;3 is a schematic structural diagram of a Transmission Time Interval (TTI) according to an embodiment of the present invention;
图4为本发明实施例基站调度配置静默时隙的示意图;4 is a schematic diagram of a base station scheduling configuration silent time slot according to an embodiment of the present invention;
图5为本发明实施例基站确定静默时隙出现周期的示意图;5 is a schematic diagram of determining, by a base station, a period of occurrence of a silent time slot according to an embodiment of the present invention;
图6为本发明实施例中基站***的射频通道校准结构示意图;6 is a schematic diagram of a radio frequency channel calibration structure of a base station system according to an embodiment of the present invention;
图7为本发明实施例天线校准装置的结构示意图;FIG. 7 is a schematic structural diagram of an antenna calibration apparatus according to an embodiment of the present invention; FIG.
图8为本发明实施例基站的结构示意图;FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;
图9为本发明实施例基站的另一种结构示意图。FIG. 9 is another schematic structural diagram of a base station according to an embodiment of the present invention.
为了在无线通信过程中消除各个射频端接收通道和发送通道之间的偏差对信道的影响,保证射频通道的互易性,基站***通常需要对射频通道进行校准,以保证多个远端射频模块(Radio Remote Unit,简称:RRU)的射频端发送通道幅度和相位的一致性。为了防止基站***在进行射频通道校准的过
程接收到其它外部信号输入,导致校准精度降低甚至校准失败,本发明实施例提供一种天线校准方法、装置及基站,用于保证校准过程顺利完成。In order to eliminate the influence of the deviation between the receiving channel and the transmitting channel of each RF terminal on the channel during the wireless communication process and ensure the reciprocity of the RF channel, the base station system usually needs to calibrate the RF channel to ensure multiple remote RF modules. (Radio Remote Unit, RRU for short) The amplitude and phase consistency of the transmission channel of the radio end. In order to prevent the base station system from performing RF channel calibration
The embodiment of the present invention provides an antenna calibration method, apparatus, and base station for ensuring successful completion of the calibration process.
图1为本发明实施例天线校准方法的流程示意图,图2为本发明实施例天线校准方法确定的校准时隙示意图。1 is a schematic flowchart of an antenna calibration method according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a calibration time slot determined by an antenna calibration method according to an embodiment of the present invention.
请参阅图1及图2,本发明实施例提供一种天线校准方法,所述天线校准方法的执行主体为基站。所述方法包括:Referring to FIG. 1 and FIG. 2, an embodiment of the present invention provides an antenna calibration method, where an execution body of the antenna calibration method is a base station. The method includes:
S101:基站确定静默时隙的位置和时长,其中,所述静默时隙内所述基站和终端均不收发信号。S101: The base station determines a location and a duration of the silent time slot, where the base station and the terminal do not send and receive signals in the silent time slot.
具体地,所述基站确定无线帧的正常业务时隙及静默时隙,其中,所述基站可在所述正常业务时隙中发送下行信号,或者接收上行信号;所述基站在所述静默时隙中既不发送信号也不接收信号。Specifically, the base station determines a normal service time slot and a silent time slot of the radio frame, where the base station may send a downlink signal or receive an uplink signal in the normal service time slot; when the base station is in the silent state Neither the signal nor the signal is received in the slot.
在具体实现过程中,所述确定静默时隙的位置和时长,包括:In a specific implementation process, the determining the location and duration of the silent time slot includes:
所述基站获取天线校准需求;The base station acquires an antenna calibration requirement;
所述基站根据所述天线校准需求,确定所述静默时隙的位置和时长。The base station determines the location and duration of the silent time slot according to the antenna calibration requirement.
具体地,所述基站可以通过监控基站***的特征参数的变化情况来获取天线校准需求。所述基站***的特征参数可以为射频电路的工作频率或者外部环境的温度及湿度等。当所述特征参数的变化情况超过预设阈值时,即可发出天线校准需求。Specifically, the base station may acquire an antenna calibration requirement by monitoring a change of a characteristic parameter of the base station system. The characteristic parameters of the base station system may be the operating frequency of the radio frequency circuit or the temperature and humidity of the external environment. The antenna calibration requirement can be issued when the change of the characteristic parameter exceeds a preset threshold.
所述基站确定静默时隙的位置和时长之后,还包括:After the determining, by the base station, the location and duration of the silent time slot, the method further includes:
所述基站向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。The base station sends indication information to the terminal, where the indication information includes: a location and a duration of the silent time slot.
图3为本发明实施例传输时间间隔(Transmission Time Interval,简称:TTI)结构示意图,图4为本发明实施例基站调度配置静默时隙的示意图。FIG. 3 is a schematic structural diagram of a transmission time interval (TTI) according to an embodiment of the present invention, and FIG. 4 is a schematic diagram of a base station scheduling configuration silent time slot according to an embodiment of the present invention.
请参阅图3,所述静默时隙可以为特定TTI中的部分或整个TTI时隙区段。Referring to FIG. 3, the silent time slot may be part of a specific TTI or an entire TTI time slot section.
请同时参阅图4,具体地,所述基站获取所述天线校准需求之后,通过下行控制信道发送下行控制指示信息给所述终端,指示所述终端在所述静默时隙内保持静默,停止向所述基站发送信号及从基站接收信号。Referring to FIG. 4, in particular, after acquiring the antenna calibration requirement, the base station sends downlink control indication information to the terminal through the downlink control channel, indicating that the terminal remains silent in the silent time slot, and stops The base station transmits signals and receives signals from a base station.
进一步地,在上述实施例的基础上,所述基站向所述终端发送指示信息,包括:
Further, on the basis of the foregoing embodiment, the sending, by the base station, the indication information to the terminal includes:
所述基站在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
所述基站通过在所述静默时隙之前提前向所述终端发送指示信息,从而确保所述终端能在所述静默时隙中停止收发信号。The base station ensures that the terminal can stop transmitting and receiving signals in the silent time slot by transmitting indication information to the terminal in advance before the silent time slot.
通过上述实施方式,基站可以根据校正需求实时确定静默时隙的位置和时长,使得基站***在无需进行天线校准时,保证有更多的时隙可以用于正常收发数据,从而在保证基站***能够对天线进行精确校准的同时,节省***调度资源。Through the foregoing implementation manner, the base station can determine the location and duration of the silent time slot in real time according to the calibration requirement, so that the base station system can ensure that more time slots can be used for normal data transmission and reception when the antenna calibration is not needed, thereby ensuring that the base station system can While the antenna is accurately calibrated, system scheduling resources are saved.
可选地,所述基站***还可以确定所述静默时隙的出现周期。通过确定所述静默时隙的出现周期,使得基站***及终端周期性地保持静默,用于所述基站***周期性地对天线进行校准。Optionally, the base station system may also determine an appearance period of the silent slot. The base station system and the terminal are periodically kept silent by determining the occurrence period of the silent time slot for the base station system to periodically calibrate the antenna.
可选地,所述静默时隙的时长大于预设保护间隔GP的时长。将所述静默时隙的时长设置为大于预设保护间隔GP的时长,可以保证基站***具有足够的天线校准时间,保证校准过程的顺利完成。Optionally, the duration of the silent time slot is greater than the duration of the preset guard interval GP. Setting the duration of the silent time slot to be longer than the preset protection interval GP can ensure that the base station system has sufficient antenna calibration time to ensure the smooth completion of the calibration process.
图5为本发明实施例基站确定静默时隙出现周期的示意图。FIG. 5 is a schematic diagram of a base station determining a period of occurrence of a silent slot according to an embodiment of the present invention.
请参阅图5,具体地,所述基站***可以确定进入静默状态的时隙的固定位置,并按照所述静默时隙的出现周期,在所述时隙的固定位置进入静默状态,所述基站及所述终端同时停止收发信号。所述静默时隙的出现周期可以通过协议进行规定。所述周期可以为任意时长,例如:1024分钟、30分钟等。具体地,可以根据基站***的天线性能提前进行设定。Referring to FIG. 5, in particular, the base station system may determine a fixed position of a time slot entering a silent state, and enter a silent state at a fixed position of the time slot according to an appearance period of the silent time slot, where the base station And the terminal stops transmitting and receiving signals at the same time. The period of occurrence of the silent time slot can be specified by a protocol. The period can be any length of time, for example: 1024 minutes, 30 minutes, and the like. Specifically, the setting can be made in advance according to the antenna performance of the base station system.
S102:所述基站在所述静默时隙内进行天线校准。S102: The base station performs antenna calibration in the silent time slot.
图6为本发明实施例中基站***的射频通道校准结构示意图。具体地,所述基站进行天线校准的过程如图6所示。FIG. 6 is a schematic diagram of a radio frequency channel calibration structure of a base station system according to an embodiment of the present invention. Specifically, the process of performing antenna calibration by the base station is as shown in FIG. 6.
请参阅图6,本发明实施例中基站***的射频通道校准结构包括参考发射通道、射频天线分路器及接收通道。校准时,基站***获取到接收通道校正序列后,通过所述参考发射通道将所述接收通道校正序列发送到多个射频天线上,每个射频天线的接收通道根据所述校正序列计算与所述参考发送通道之间的幅度相位偏差,得到对应的射频校正系数,并根据所述射频校正系数对所述接收通道进行校准。Referring to FIG. 6, the radio frequency channel calibration structure of the base station system in the embodiment of the present invention includes a reference transmission channel, a radio frequency antenna splitter, and a receiving channel. During calibration, after the base station system acquires the receiving channel correction sequence, the receiving channel correction sequence is sent to the plurality of radio frequency antennas through the reference transmitting channel, and the receiving channel of each radio frequency antenna is calculated according to the correction sequence. Referring to the amplitude phase deviation between the transmission channels, a corresponding radio frequency correction coefficient is obtained, and the receiving channel is calibrated according to the radio frequency correction coefficient.
本发明实施例提供的天线校准方法,通过基站确定静默时隙的位置和时
长,基站和终端在静默时隙内均不收发信号,基站在静默时隙内进行天线校准,从而防止了基站在进行天线校准的过程中接收通道中的校准序列受到外部信号的干扰,保证了天线校准的精度。The antenna calibration method provided by the embodiment of the present invention determines the location and time of the silent time slot by the base station.
Long, the base station and the terminal do not send and receive signals in the silent time slot, and the base station performs antenna calibration in the silent time slot, thereby preventing the base station from being interfered by the external signal in the calibration sequence in the receiving channel during the antenna calibration process, thereby ensuring The accuracy of the antenna calibration.
图7为本发明实施例天线校准装置的结构示意图。FIG. 7 is a schematic structural diagram of an antenna calibration apparatus according to an embodiment of the present invention.
请参阅图7,本发明实施例提供的天线校准装置,包括:Referring to FIG. 7, an antenna calibration apparatus according to an embodiment of the present invention includes:
确定模块710,用于确定静默时隙的位置和时长,其中,所述静默时隙内所述天线校准装置和终端均不收发信号;a determining module 710, configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
校准模块720,用于在所述静默时隙内进行天线校准。The calibration module 720 is configured to perform antenna calibration within the silent time slot.
可选地,所述确定模块710,具体用于:Optionally, the determining module 710 is specifically configured to:
获取天线校准需求参数;Obtain antenna calibration requirement parameters;
根据所述天线校准需求参数,确定所述静默时隙的位置和时长。Determining the location and duration of the silent time slot based on the antenna calibration requirement parameter.
可选地,所述装置还包括:Optionally, the device further includes:
发送模块730,用于在所述确定模块确定静默时隙的位置和时长之后,向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。The sending module 730 is configured to send, to the terminal, indication information after the determining module determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
可选地,所述发送模块730,具体用于:Optionally, the sending module 730 is specifically configured to:
所述基站在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
可选地,所述确定模块710,还用于:Optionally, the determining module 710 is further configured to:
确定所述静默时隙的出现周期。A period of occurrence of the silent time slot is determined.
可选地,所述静默时隙的时长大于预设保护间隔GP的时长。Optionally, the duration of the silent time slot is greater than the duration of the preset guard interval GP.
本发明实施例提供的天线校准装置,用于执行上述方法实施例提供的天线校准方法,其具体实现方式及技术效果与方法实施例类似,在此不再赘述。The antenna calibration apparatus provided by the embodiment of the present invention is used to perform the antenna calibration method provided by the foregoing method embodiment. The specific implementation manner and technical effects are similar to the method embodiments, and are not described herein again.
图8为本发明实施例基站的结构示意图。FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
请参阅图8,本发明实施例提供的基站,包括:Referring to FIG. 8, a base station provided by an embodiment of the present invention includes:
处理器810,用于确定静默时隙的位置和时长,其中,所述静默时隙内所述天线校准装置和终端均不收发信号;The processor 810 is configured to determine a location and duration of the silent time slot, where the antenna calibration device and the terminal do not send and receive signals in the silent time slot;
所述处理器810,还用于在所述静默时隙内进行天线校准。The processor 810 is further configured to perform antenna calibration in the silent time slot.
可选地,所述处理器810,具体用于:Optionally, the processor 810 is specifically configured to:
获取天线校准需求参数;Obtain antenna calibration requirement parameters;
根据所述天线校准需求参数,确定所述静默时隙的位置和时长。
Determining the location and duration of the silent time slot based on the antenna calibration requirement parameter.
可选地,所述基站还包括:Optionally, the base station further includes:
发送器820,用于在所述处理器810确定静默时隙的位置和时长之后,向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。The transmitter 820 is configured to send indication information to the terminal after the processor 810 determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
可选地,所述发送器820,具体用于:Optionally, the transmitter 820 is specifically configured to:
在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The indication information is sent to the terminal at a preset duration position before the start time of the silent time slot.
可选地,所述处理器810,还用于:Optionally, the processor 810 is further configured to:
确定所述静默时隙的出现周期。A period of occurrence of the silent time slot is determined.
可选地,所述静默时隙的时长大于预设保护间隔GP的时长。Optionally, the duration of the silent time slot is greater than the duration of the preset guard interval GP.
本发明实施例提供的基站,用于执行上述方法实施例提供的天线校准方法,其具体实现方式及技术效果与方法实施例类似,在此不再赘述。The base station provided by the embodiment of the present invention is configured to perform the antenna calibration method provided by the foregoing method embodiment, and the specific implementation manner and the technical effect are similar to the method embodiment, and details are not described herein again.
图9为本发明实施例基站的另一种结构示意图。FIG. 9 is another schematic structural diagram of a base station according to an embodiment of the present invention.
请参阅图9,本发明实施例提供的基站,包括:Referring to FIG. 9, a base station provided by an embodiment of the present invention includes:
处理器910及存储器920,所述存储器920中存储有程序指令,所述处理器910用于调用所述存储器中的程序指令,用以实现上述方法实施例提供的天线校准方法,其具体实现方式及技术效果与方法实施例类似,在此不再赘述。The processor 910 and the memory 920, the memory 920 stores a program instruction, and the processor 910 is configured to invoke the program instruction in the memory to implement the antenna calibration method provided by the foregoing method embodiment, and the specific implementation manner thereof The technical effects are similar to the method embodiments, and are not described herein again.
本领域普通技术人员可以理解:实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时,执行包括上述各方法实施例的步骤;而前述的存储介质包括:ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
Claims (18)
- 一种天线校准方法,其特征在于,包括:An antenna calibration method, comprising:基站确定静默时隙的位置和时长,其中,所述静默时隙内所述基站和终端均不收发信号;Determining, by the base station, a location and a duration of the silent time slot, wherein the base station and the terminal do not send and receive signals in the silent time slot;所述基站在所述静默时隙内进行天线校准。The base station performs antenna calibration within the silent time slot.
- 根据权利要求1所述的方法,其特征在于,所述基站确定静默时隙的位置和时长,包括:The method according to claim 1, wherein the base station determines the location and duration of the silent time slot, including:所述基站获取天线校准需求;The base station acquires an antenna calibration requirement;所述基站根据所述天线校准需求,确定所述静默时隙的位置和时长。The base station determines the location and duration of the silent time slot according to the antenna calibration requirement.
- 根据权利要求1或2所述的方法,其特征在于,所述基站确定静默时隙的位置和时长之后,还包括:The method according to claim 1 or 2, wherein after the base station determines the location and duration of the silent time slot, the method further includes:所述基站向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。The base station sends indication information to the terminal, where the indication information includes: a location and a duration of the silent time slot.
- 根据权利要求3所述的方法,其特征在于,所述基站向所述终端发送指示信息,包括:The method according to claim 3, wherein the sending, by the base station, the indication information to the terminal comprises:所述基站在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:The method of claim 1 further comprising:所述基站确定所述静默时隙的出现周期。The base station determines an appearance period of the silent slot.
- 根据权利要求1所述的方法,其特征在于,所述静默时隙的时长大于预设保护间隔GP的时长。The method according to claim 1, wherein the duration of the silent time slot is greater than the duration of the preset guard interval GP.
- 一种天线校准装置,其特征在于,包括:An antenna calibration apparatus, comprising:确定模块,用于确定静默时隙的位置和时长,其中,所述静默时隙内所述天线校准装置和终端均不收发信号;a determining module, configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;校准模块,用于在所述静默时隙内进行天线校准。A calibration module for performing antenna calibration within the silent time slot.
- 根据权利要求7所述的装置,其特征在于,所述确定模块,具体用于:The device according to claim 7, wherein the determining module is specifically configured to:获取天线校准需求参数;Obtain antenna calibration requirement parameters;根据所述天线校准需求参数,确定所述静默时隙的位置和时长。Determining the location and duration of the silent time slot based on the antenna calibration requirement parameter.
- 根据权利要求8所述的装置,其特征在于,还包括:The device according to claim 8, further comprising:发送模块,用于在所述确定模块确定静默时隙的位置和时长之后,向所 述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。a sending module, after the determining module determines the location and duration of the silent time slot, The terminal sends indication information, where the indication information includes: a location and a duration of the silence slot.
- 根据权利要求9所述的装置,其特征在于,所述发送模块,具体用于:The device according to claim 9, wherein the sending module is specifically configured to:所述基站在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The base station sends the indication information to the terminal at a preset duration position before the start time of the silent time slot.
- 根据权利要求7所述的装置,其特征在于,所述确定模块,还用于:The device according to claim 7, wherein the determining module is further configured to:确定所述静默时隙的出现周期。A period of occurrence of the silent time slot is determined.
- 根据权利要求7所述的装置,其特征在于,所述静默时隙的时长大于预设保护间隔GP的时长。The apparatus according to claim 7, wherein the duration of the silent time slot is greater than the duration of the preset guard interval GP.
- 一种基站,其特征在于,包括:A base station, comprising:处理器,用于确定静默时隙的位置和时长,其中,所述静默时隙内所述天线校准装置和终端均不收发信号;a processor, configured to determine a location and duration of the silent time slot, wherein the antenna calibration device and the terminal do not send and receive signals in the silent time slot;所述处理器,还用于在所述静默时隙内进行天线校准。The processor is further configured to perform antenna calibration in the silent time slot.
- 根据权利要求13所述的基站,其特征在于,所述处理器,具体用于:The base station according to claim 13, wherein the processor is specifically configured to:获取天线校准需求参数;Obtain antenna calibration requirement parameters;根据所述天线校准需求参数,确定所述静默时隙的位置和时长。Determining the location and duration of the silent time slot based on the antenna calibration requirement parameter.
- 根据权利要求14所述的基站,其特征在于,还包括:The base station according to claim 14, further comprising:发送器,用于在所述处理器确定静默时隙的位置和时长之后,向所述终端发送指示信息,所述指示信息包括:所述静默时隙的位置和时长。And a transmitter, configured to send indication information to the terminal after the processor determines the location and duration of the silent time slot, where the indication information includes: a location and a duration of the silent time slot.
- 根据权利要求15所述的基站,其特征在于,所述发送器,具体用于:The base station according to claim 15, wherein the transmitter is specifically configured to:在所述静默时隙的起始时刻前的预设时长位置,向所述终端发送所述指示信息。The indication information is sent to the terminal at a preset duration position before the start time of the silent time slot.
- 根据权利要求13所述的基站,其特征在于,所述处理器,还用于:The base station according to claim 13, wherein the processor is further configured to:确定所述静默时隙的出现周期。A period of occurrence of the silent time slot is determined.
- 根据权利要求13所述的基站,其特征在于,所述静默时隙的时长大于预设保护间隔GP的时长。 The base station according to claim 13, wherein the duration of the silence slot is greater than the duration of the preset guard interval GP.
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