WO2017088791A1 - Wave beam processing method and base station - Google Patents

Wave beam processing method and base station Download PDF

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Publication number
WO2017088791A1
WO2017088791A1 PCT/CN2016/107086 CN2016107086W WO2017088791A1 WO 2017088791 A1 WO2017088791 A1 WO 2017088791A1 CN 2016107086 W CN2016107086 W CN 2016107086W WO 2017088791 A1 WO2017088791 A1 WO 2017088791A1
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WIPO (PCT)
Prior art keywords
base station
consecutive symbols
interval
message
symbol
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PCT/CN2016/107086
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French (fr)
Chinese (zh)
Inventor
任海豹
曲秉玉
李元杰
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华为技术有限公司
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Publication of WO2017088791A1 publication Critical patent/WO2017088791A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40Network security protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering

Definitions

  • the present application relates to the field of communication technologies, and in particular, to beamforming techniques in communication systems.
  • Beamforming technology is a combination of wireless technology and digital signal processing technology, the purpose of which is to achieve directional transmission of signals or reception of directional signals.
  • Beamforming technology includes two types of digital beamforming and analog beamforming. Analog beamforming has lower complexity and cost. However, each time the analog beam is switched, it takes a certain amount of time, resulting in excessive time overhead for beam switching.
  • the application provides a beam processing method and a base station to reduce the overhead of beam switching.
  • the present application provides a beam processing method, the method comprising: a base station acquiring a plurality of consecutive symbols to be transmitted in a beam form; and if the plurality of consecutive symbols include a transition interval for performing an uplink-downlink transition And sending a message to the user equipment in the cell, where the message is used to notify the user equipment of the information that the base station performs beam switching at the transition interval.
  • the time interval for performing the uplink and downlink handover is used as the time for performing the beam switching, and is notified to the user equipment, and the time for the multiplexed base station to perform the uplink and downlink conversion is performed to perform beam switching, thereby eliminating the need for performing the beam switching.
  • the beam switching time is separately reserved at the transition interval symbol, which is beneficial to reduce the time overhead of beam switching.
  • the base station after the base station sends a message to the user equipment in the cell, the multiple consecutive symbols are sent in sequence, and if the currently to-be-transmitted symbol is the transition interval, then the transition interval corresponds to Beam switching is performed within the duration.
  • the base station determines that the current to-be-transmitted signal is the transition interval, the base station performs beam switching on the duration corresponding to the transition interval, and multiplexes the duration corresponding to the transition interval as the duration of the beam handover, thereby reducing the beam switching time.
  • the transition interval includes: a time interval for uplink to downlink transitions; or a guard interval for downlink to uplink transitions.
  • the base station determines a target symbol in the plurality of consecutive symbols, and the duration corresponding to the target symbol is preset for performing beam switching. a time length; wherein the target symbol is set in the plurality of consecutive symbols by: determining a symbol bit corresponding to the plurality of consecutive symbols according to a preset number of consecutive symbol intervals based on a sequence of the plurality of consecutive symbols a pending sign bit of the beam switching time to be reserved; if there is a transition interval in the plurality of consecutive symbols, determining a target sign bit not adjacent to the conversion interval from the pending sign bit, and setting the target sign bit to the The target symbol, thereby eliminating the need to reserve beam switching time at a pending location adjacent to the transition interval, thereby reducing the reserved beam switching time; thus, the message sent to the UE can also be used to base the base station on the target symbol The information on the beam switching is notified to the user equipment.
  • the message may be transmitted to users within the cell through a physical downlink control channel or higher layer radio resource control.
  • the message is used to notify the identification signal used by the most recent transmit beam before the transition interval, and the identification signal used by the latest transmit beam after the transition interval symbol.
  • an embodiment of the present invention provides a base station, which has a function of realizing the behavior of a base station in the actual method.
  • the functions can be implemented by hardware or by hardware.
  • Software Implementation The hardware or software includes one or more modules corresponding to the functions described above.
  • the base station includes a processor and a transmitter, the processor configured to support the base station to perform a corresponding function in the foregoing method; the transmitter is configured to support communication between the base station and the UE, and send the foregoing method to the UE Information or instructions involved in this.
  • the base station can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
  • the above base station may also be other wireless network devices, and the UE may also be other wireless network devices.
  • the base station is the first wireless network device, the UE is the second wireless network device, the first wireless network device, and the second wireless device.
  • the network device can perform the method provided above, the first wireless network device can include a processor and a transceiver configured to support the first wireless network device to perform a corresponding function in the above method; the transmitter is configured to support the first wireless
  • the communication between the network device and the second wireless network device transmits the information or instructions involved in the above method to the second wireless network device.
  • the base station can also include a memory for coupling with the processor that retains program instructions and data necessary for the first wireless network device.
  • the solution provided by the present invention can reduce the overhead of beam switching.
  • FIG. 1 shows an architectural diagram of a communication system of the present application
  • FIG. 2a is a schematic structural diagram of a base station in the communication system shown in FIG. 1;
  • FIG. 2b is a schematic structural diagram of user equipment in the communication system shown in FIG. 1;
  • Figure 3 is a schematic diagram of hybrid beamforming
  • FIG. 4 is a schematic flow chart of an embodiment of a beam processing method according to the present application.
  • FIG. 5 is a schematic flow chart showing an implementation manner of setting a target symbol in a symbol bit corresponding to a plurality of consecutive symbols in the present application
  • FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • future networks such as 5G, D2D (device to device) networks, M2M (machine to machine) networks, and so on.
  • UE User equipment
  • MS mobile station
  • Mobile Terminal Mobile Terminal
  • UE User equipment
  • a terminal a mobile station
  • MS mobile terminal
  • Mobile Terminal Mobile Terminal
  • a radio access network such as a RAN, Radio Access Network
  • a mobile terminal such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • It can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • the base station may be a base station in GSM or CDMA, such as a base transceiver station (Base Transceiver Station, referred to as "BTS"), or a base station in WCDMA, such as a NodeB, or may be in LTE.
  • BTS Base Transceiver Station
  • WCDMA Wideband Code Division Multiple Access
  • NodeB NodeB
  • the embodiment of the present application is not limited in the embodiment of the present application, such as an eNB or an e-NodeB (evolutional Node B), or a base station in a future network.
  • FIG. 1 is a structural diagram of a communication system according to an embodiment of the present application.
  • the communication system includes a base station and at least one user equipment (only the user equipment 1, the user equipment 2, and the user equipment 3 are shown in the figure), and the base station and the user equipment communicate by using a wireless signal, and the wireless signal is A sub-frame consisting of multiple symbols.
  • the communication system may further include neighboring base stations and user equipments that transmit services on the same time-frequency resource except the base station, and each of the base stations may include other numbers of user equipments in the coverage.
  • the wireless communication system in which the base station and the user equipment are located in FIG. 1 may further include other network entities, such as a network controller, a mobility management entity, and the like. Not limited.
  • FIG. 2a is a schematic structural diagram of a base station in the communication system shown in FIG. 1.
  • the base station may include an antenna array, a duplexer, a transmitter (Transmitter, referred to as "TX”), and a receiver (Receiver, referred to as "RX”) (TX and RX may be collectively referred to as a transceiver TRX).
  • TX Transmitter
  • RX Receiveiver
  • TRX Receiveiver
  • the duplexer is used to implement an antenna array, which can be used for both transmitting signals and receiving signals.
  • TX is used to convert between RF signal and baseband signal.
  • TX can include Power Amplifier ("PA”), Digital to Analog Converter (“DAC”) and inverter.
  • the RX may include a Low-Noise Amplifier (LNA), an Analog to Digital Converter (ADC), and a frequency converter.
  • the baseband processing section is used to implement processing of transmitted or received signals, such as layer mapping, precoding, modulation/demodulation, encoding/compiling, etc., and for physical control channels, physical data channels, physical broadcast channels, reference signals, and the like. Separate processing.
  • the base station may further include a control part, configured to perform multi-user scheduling and resource allocation, pilot scheduling, user physical layer parameter configuration, and the like.
  • FIG. 2b is a schematic structural diagram of user equipment in the communication system shown in FIG. 1.
  • User equipment may include an antenna, a duplexer, TX and RX (TX and RX may be collectively referred to as transceiver TRX), and a baseband processing portion.
  • the user equipment has multiple antennas (i.e., antenna arrays). It should be understood that the user equipment may also have a single antenna.
  • the duplexer enables the antenna array to be used for both transmitting signals and receiving signals.
  • TX is used to convert between RF signal and baseband signal.
  • TX can include PA, DAC and inverter.
  • RX can include LNA, ADC and inverter.
  • the baseband processing section is used to implement processing of transmitted or received signals, such as layer mapping, precoding, modulation/demodulation, encoding/decoding, etc., and for physical control channels, physical data channels, physical broadcast channels, reference signals Wait for separate processing.
  • the user equipment may further include a control part, configured to request an uplink physical resource, calculate channel state information (CSI) corresponding to the downlink channel, and determine whether the downlink data packet is successfully received.
  • CSI channel state information
  • the base station side and/or the user side enhance the coverage by using beamforming techniques by configuring the antenna array.
  • Beamforming of the antenna array includes an analog beam and a hybrid beam formed by an antenna array. Further, please refer to FIG. 3, which is a schematic diagram of hybrid beamforming.
  • the baseband processing section completes one General baseband digital signal processing, including CRC check, encoding, modulation, scrambling, digital beamforming, etc.; baseband processed digital signal is sent to the radio frequency (Radio Frequency, referred to as "RF") link (only Draw two RF links, which can include one or more RF links in practical applications, and transmit RF links to perform functions such as upsampling, transmit shaping filtering, clipping, analog-to-digital conversion, and analog signals after RF processing. It is sent to multiple power amplifiers, phase shifters and antenna units for analog beamforming; the baseband processing part can realize the transmission of signals with certain directivity by controlling the phase of the RF phase shifter.
  • RF Radio Frequency
  • the directivity refers to the directivity of electromagnetic wave energy
  • the signal with directivity synthesized by a plurality of analog phase shifters is called an analog beam.
  • the RF phase shifter is generally implemented by a delay line or a PIN diode. It takes a certain time to adjust the phase. Therefore, when designing the communication protocol, the influence of the beam switching time needs to be considered.
  • Each of the beam switching needs to occupy a certain length of time.
  • the switching time of the beam switching needs to be reserved once for each preset number of symbols, so that the beam switching takes up more duration.
  • the embodiment of the present application provides a beam processing method, and a base station based on the method.
  • the base station acquires a plurality of symbols to be sent in the form of a beam, and if there is a transition interval for performing the transition between the uplink and the downlink, the message is sent to the UE, where the message is used to perform the base station at the transition interval.
  • the information of the beam switching is notified to the UE.
  • the duration of the transition interval is set due to the need for downlink to uplink or uplink to downlink conversion at the transition interval. Longer, and the transition interval takes longer than the length of time required for beam switching. In this way, when the base station performs downlink to uplink or uplink to downlink conversion at the transition interval, and performs beam switching, it is not necessary to separately consume the beam switching time, thereby multiplexing the duration occupied by the conversion interval to perform beam switching, which is beneficial to On the premise of increasing the number of beam switching times, the time overhead of beam switching is reduced.
  • the beam processing method provided by the embodiment of the present application includes:
  • the multiple consecutive symbols that are obtained may be the same as the symbols in the existing analog beam or the mixed analog beam, for example, the multiple consecutive symbols may be one subframe, and details are not described herein again.
  • the message is used to notify the UE of information that the base station performs beam switching at the transition interval.
  • the UE in the embodiment of the present application is a UE in a cell covered by the base station.
  • the transition between uplink and downlink may be an uplink to downlink transition or a downlink to uplink transition.
  • the base station uses the duration of the transition between uplink and downlink as the reserved beam switching time, that is, the time corresponding to the transition interval is determined as the time for performing beam switching.
  • the time corresponding to the transition interval is used as a time for performing beam switching, and is notified to The UE implements the time for the multiplexed base station to perform the transition between uplink and downlink to perform beam switching, so that it is not necessary to separately reserve the beam switching time at the transition interval, which is advantageous for reducing the beam switching time.
  • the beam switching does not increase the beam overhead when the time of multiplexing the switching interval is performed, beam switching is performed when a transition interval for performing uplink-downlink transition occurs in the plurality of consecutive symbols, which is also beneficial not to increase
  • the number of beam switching times is increased, so that the signal reception abnormality of the UE with slow tracking and large access delay caused by excessive beam switching period can be reduced.
  • the base station may send the multiple consecutive symbols, and when the to-be-transmitted symbol is a transition interval for performing uplink-to-downlink transition, the base station is at the transition interval.
  • the conversion between the uplink and the downlink is performed within the corresponding duration; at the same time, the base station performs beam switching within the duration corresponding to the transition interval, that is, changes the phase of the phase shifter to change the beam output direction.
  • the transition interval for performing the transition between uplink and downlink can be understood as the duration of time for performing uplink and downlink conversion included in the plurality of consecutive symbols.
  • the conversion interval can be divided into two Kind: One is the time interval for uplink to downlink conversion.
  • the other is a time interval for downlink to uplink conversion, wherein the time interval for downlink to uplink conversion may also be referred to as guard interval (GP).
  • GP guard interval
  • the consecutive multiple symbols may include only the time interval for uplink to downlink conversion, or only the guard interval; of course, there may be multiple consecutive transitions in the consecutive multiple symbols.
  • the plurality of consecutive symbols alternately appear for the time interval for the downlink to uplink transition and the time interval for the uplink to downlink transition.
  • the base station does not perform beam transmission during uplink communication. Therefore, if beam switching is performed at any two adjacent switching intervals, the uplink switching time interval and the uplink switching downlink time interval, Of the two beam switchings performed at the transition interval, there is only the uplink symbol and no beam transmission of the base station, so that one of the two beam handovers is meaningless.
  • the plurality of consecutive symbols include multiple conversion intervals for performing uplink-downlink conversion
  • only one type of conversion interval length duration multiplexing may be selected as the duration of the beam switching.
  • the duration corresponding to the guard interval symbol in the plurality of consecutive symbols may be used as the duration of beam switching.
  • the beam is transmitted. Therefore, the duration corresponding to the time interval for uplink-to-downlink conversion can be used as the duration of beam switching, that is, if the multiple consecutive symbols are used.
  • a transition interval for uplink to downlink conversion is included, a message is sent to the UE, which is used to notify the UE of information that the base station performs beam switching at the transition interval for uplink to downlink conversion.
  • the number of symbols to be sent is not included in the transition interval for uplink and downlink conversion. It may also include: a preset target symbol, and the duration corresponding to the target symbol is a preset duration for performing beam switching.
  • the target symbols in the plurality of consecutive symbols may be determined.
  • the message sent by the base station to the UE is used to notify the UE of the beam switching in the time interval corresponding to the target symbol. Notify the UE.
  • the number may be set by a base station that generates the plurality of consecutive symbols as needed. There may be multiple implementations of placing one or more target symbols in the sign bits corresponding to the plurality of consecutive symbols.
  • FIG. 5 is a schematic flowchart of an implementation manner of setting a target symbol in a symbol bit corresponding to a plurality of consecutive symbols, and the implementation process of the method may include:
  • 501 Determine a to-be-determined symbol bit of a beam switching time to be reserved among the symbol bits corresponding to the plurality of consecutive symbols, according to a sequence of the plurality of consecutive symbols, and according to a preset number of symbol intervals.
  • the duration corresponding to the target symbol is the duration of the beam switching.
  • the duration corresponding to the transition interval can be directly used as the duration required for beam switching, so that it is not necessary to separately reserve the beam switching time at the pending sign bit. Therefore, the pending sign bit adjacent to the transition interval need not be the position point for performing beam switching, but only the pending sign bit not adjacent to the transition interval and the transition interval are regarded as the position point to be beam-switched.
  • the duration corresponding to the target symbol bit is the reserved beam switching duration.
  • setting the target symbol in the target sign bit can be understood as a blank duration, such as a blank symbol, placed in the target symbol bit, wherein the set duration can be set according to the length of time required for the beam switching. .
  • the beam switching can be performed within the set duration corresponding to the blank symbol.
  • the beam switching time may be reserved in the target symbol bit by using other methods, so that, when the plurality of consecutive symbols are sent, when the symbol to be transmitted is the target symbol, corresponding to the target symbol The symbol transmission is not performed within the duration, but the beam switching is performed only within the duration corresponding to the target symbol.
  • the direct The time corresponding to the transition interval is used as the beam switching required for the reserved location point. Therefore, the reserved beam switching time is reduced, and the time overhead of beam switching is reduced.
  • the conversion interval may be all conversion intervals for performing conversion between uplink and downlink, or may be only conversion intervals for downlink to uplink conversion; or only GP.
  • the base station may transmit to the plurality of consecutive symbols in the form of an analog beam. Specifically, the plurality of consecutive symbols are sequentially transmitted; in the process of transmitting the plurality of consecutive symbols, if a transition interval symbol or a preset target symbol is detected, a phase change of the phase shifter is controlled to implement beam direction switching.
  • the base station can notify the UE of the information of the beam switching performed at the transition interval in the plurality of consecutive symbols in multiple manners.
  • the base station may send the message to the UE by implicit or explicit, dynamic or semi-dynamic.
  • the message may be used to send analog beam information before and after the transition interval to the UE, where the simulated beam information includes an analog beam identifier for distinguishing different analog beams.
  • the manner in which the base station notifies the UE of the beam switching information at the target symbol may also be that the message is sent to the UE dynamically or semi-dynamically by implicit or display.
  • the analog beam information can be carried by the specified identification signal.
  • the analog beam information may be carried by a cell-specific reference signal (CRS) (also referred to as a common reference signal).
  • CRS cell-specific reference signal
  • the base station may send the CRS corresponding to the analog beam used for transmitting different symbol segments in the plurality of consecutive symbol segments to the user equipment in the cell.
  • the different analog beam identifiers correspond to different common reference signals, that is, the common reference signals and the analog beam identifiers are in one-to-one correspondence.
  • the CRS used for the latest transmit beam before the transition interval may be notified to the UE, and of course, The CRS employed by the most recent transmit beam after the transition interval may be notified to the UE. That is to say, among the plurality of consecutive symbols, the CRS corresponding to each of the plurality of symbol segments divided by the conversion interval is notified to the UE.
  • the plurality of symbol segments are transmitted by using beams of different transmission directions.
  • the message When the message is used to notify the UE of the information that the base station performs beam switching at the target symbol and the transition interval, the message may be carried by the plurality of target symbol segments in the plurality of consecutive symbols.
  • the target symbol segment is a plurality of symbol segments that are segmented by the preset target symbol and the conversion interval among the plurality of consecutive symbols.
  • the CRS used by the previous transmission beam at the target symbol may be notified to the UE; and/or The CRS used by the latest transmit beam after the target symbol is notified to the UE.
  • the base station may also send other identification signals to the UE, for example, the base station may send a channel state information reference signal (CSI-RS, Channel-State Information-Reference Signal), or send a discovery to the UE.
  • CSI-RS channel state information reference signal
  • the discovery signal may include at least one or more than one of a CRS, a CSI-RS, and a primary and secondary synchronization signals.
  • the UE may determine the beam handover condition of the base station. For example, the base station may notify the UE of the transition interval and the time corresponding to the target symbol, and the UE combines the determined beam switching situation and the time when the beam is changed, so that the UE can determine that the UE can receive the same. The time period of the analog beam, and then the UE can be set to the sleep state during the time period in which the UE does not need to receive the analog beam.
  • the UE can also perform other processing based on the message sent by the base station.
  • the signal quality of the cell is determined.
  • the CRS signal strength of the multiple subframes or even multiple frames is continuously measured, and the average signal strength of the measured CRS is calculated, and then the average signal strength of the CRS is reported to the base station.
  • the UE when the CRS signal is transmitted by using the analog beam, the UE needs to distinguish the CRS signal strength corresponding to the measured different analog beams, and collect the CRS strength of the analog beam in the beam transmitting direction of the UE, and then report the CRS strength to the base station;
  • the UE does not know that the beam transmission directions of the multiple characters before and after the transition interval are different, and the analog beam of different transmission directions before and after the transition interval is used as the same analog beam to calculate the average signal strength of the CRS, thereby causing the CRS reported to the base station.
  • the average signal strength is wrong.
  • the form of the message sent by the base station can also be in various forms, for example, the message can be dynamically transmitted through a physical downlink control channel (PDCCH, Physical Downlink Control Channel); for example, the message can be through the high layer wireless Signaling for resource control (RRC, Radio Resource Control) transmission.
  • PDCCH Physical Downlink Control Channel
  • RRC Radio Resource Control
  • the present application also provides an apparatus, which may be a base station, and the base station may implement the operations performed by the base station involved in the foregoing embodiment.
  • FIG. 6 is a schematic diagram showing the structure of the base station.
  • the base station can include a processor 601 and a transmitter 602.
  • the processor 601 is configured to acquire a plurality of consecutive symbols to be sent in the form of a beam. If the plurality of consecutive symbols include a transition interval for performing the transition between uplink and downlink, the transmitter 601 is started.
  • the transmitter 602 is configured to send a message to a user equipment in the cell, and support radio communication between the UE and other UEs, where the message is used to notify the user of information that the base station performs beam switching at the transition interval. device.
  • Figure 6 only shows a simplified design of the base station.
  • the base station may include any number of transceivers (also can be divided into receivers and transmitters), processors, controllers, memories, etc., and all base stations that can implement the present invention are within the scope of the present invention.
  • transceivers also can be divided into receivers and transmitters
  • processors controllers
  • memories etc.
  • the processor is further configured to: sequentially send the multiple consecutive symbols, and if the currently to-be-transmitted symbol is the transition interval, perform beam switching within a duration corresponding to the transition interval.
  • the conversion interval includes:
  • a guard interval for downlink to uplink conversion is a guard interval for downlink to uplink conversion.
  • the processor is further configured to: determine a target symbol in the plurality of consecutive symbols, where a duration corresponding to the target symbol is a preset duration for performing beam switching; wherein, by using, Setting the target symbol in the plurality of consecutive symbols: based on before and after the plurality of consecutive symbols And sequentially determining, in accordance with a preset number of symbol intervals, a to-be-signed symbol bit of a beam switching time to be reserved among the symbol bits corresponding to the plurality of consecutive symbols; if the conversion interval exists in the plurality of consecutive symbols Determining, from the pending sign bits, a target sign bit that is not adjacent to the transition interval, and setting the target sign bit as the target symbol;
  • the message sent by the transmitter is further used to notify the user equipment of information that the base station performs beam switching at the target symbol.
  • the processor sends a message to the user equipment in the cell, including:
  • the message is transmitted to users within the cell through a physical downlink control channel or higher layer radio resource control.
  • the message is used to notify the user equipment of the identification signal used by the latest transmission beam before the conversion interval, and the identification signal used by the latest transmission beam after the conversion interval symbol.
  • the identification signal may include one or more of a common reference signal, a status information reference signal, or a discovery signal.

Abstract

The present application relates to the field of mobile communications, and in particular to the wave beam forming technology in a communication system. In a wave beam processing method, a plurality of continuous symbols to be sent in the form of wave beams are acquired, and when the plurality of continuous symbols comprise a conversion interval for performing uplink and downlink conversion, a message is sent to a user equipment in a cell, wherein the message is used for notifying information about a base station performing wave beam switching in the conversion interval to the user equipment. By means of the solution provided in the present application, time overheads of wave beam switching can be reduced.

Description

一种波束处理方法和基站Beam processing method and base station
本申请要求于2015年11月24日提交中国专利局、申请号为201510824964.2、发明名称为“一种波束处理方法和基站”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 201510824964.2, entitled "A Beam Processing Method and Base Station" on November 24, 2015, the entire contents of which are incorporated herein by reference. .
技术领域Technical field
本申请涉及通信技术领域,尤其涉及通信***中的波束成形技术。The present application relates to the field of communication technologies, and in particular, to beamforming techniques in communication systems.
背景技术Background technique
波束成形技术是无线技术与数字信号处理技术的结合,其目的是实现定向传输信号或者接收定向信号。Beamforming technology is a combination of wireless technology and digital signal processing technology, the purpose of which is to achieve directional transmission of signals or reception of directional signals.
由于采用波束成形技术的基站发射的波束具有指向性,使得只有处于发射波束方向上的用户设备才可以以较高的信噪比接收到基站发送的信号。因此,为了使得基站信号能够全面覆盖该基站的所有小区,基站需要不断地进行波束切换,即通过改变波束发射方向来形成不同方向的波束。波束成形技术包括数字波束成形和模拟波束成形两大类,模拟波束成形具有较低的复杂度和成本。然而模拟波束每次切换均需要占用一定的时长,导致波束切换的时间开销过大。Since the beam transmitted by the base station using the beamforming technology has directivity, only the user equipment in the direction of the transmitting beam can receive the signal transmitted by the base station with a higher signal to noise ratio. Therefore, in order to enable the base station signal to fully cover all the cells of the base station, the base station needs to continuously perform beam switching, that is, to form beams in different directions by changing the beam transmission direction. Beamforming technology includes two types of digital beamforming and analog beamforming. Analog beamforming has lower complexity and cost. However, each time the analog beam is switched, it takes a certain amount of time, resulting in excessive time overhead for beam switching.
发明内容Summary of the invention
本申请提供了一种波束处理方法和基站,以降低波束切换的开销。The application provides a beam processing method and a base station to reduce the overhead of beam switching.
为实现上述目的,本申请提供如下技术方案:To achieve the above objective, the present application provides the following technical solutions:
一方面,本申请提供了一种波束处理方法,该方法包括:基站获取待以波束形式发送的多个连续符号;如果这多个连续符号中包括用于进行上下行之间转换的转换间隔时,则向小区内的用户设备发送消息,该消息用于将基站在该转换间隔处进行波束切换的信息通知给该用户设备。In one aspect, the present application provides a beam processing method, the method comprising: a base station acquiring a plurality of consecutive symbols to be transmitted in a beam form; and if the plurality of consecutive symbols include a transition interval for performing an uplink-downlink transition And sending a message to the user equipment in the cell, where the message is used to notify the user equipment of the information that the base station performs beam switching at the transition interval.
从以上方面可以看出,如果待以模拟波束形式发送的多个连续符号中包括 用于进行上下行切换的转换间隔,则将该转换间隔所占用的时间作为进行波束切换的时间,并通知给用户设备,实现了复用基站进行上下行转换的时间来进行波束切换,从而无需在该转换间隔符号处单独预留波束切换时间,有利于减少波束切换的时间开销。It can be seen from the above that if a plurality of consecutive symbols to be transmitted in the form of analog beams are included The time interval for performing the uplink and downlink handover is used as the time for performing the beam switching, and is notified to the user equipment, and the time for the multiplexed base station to perform the uplink and downlink conversion is performed to perform beam switching, thereby eliminating the need for performing the beam switching. The beam switching time is separately reserved at the transition interval symbol, which is beneficial to reduce the time overhead of beam switching.
在一个可能的设计中,基站所述向小区内的用户设备发送消息之后,依次发送所述多个连续符号,且如果当前待发送的符号为所述转换间隔时,则在转换间隔所对应的时长内进行波束切换。基站在确定当前待发送的信号为转换间隔时,在该转换间隔所对应的时长进行波束切换,复用了转换间隔所对应的时长作为波束切换的时长,可以减少波束切换时间。In a possible design, after the base station sends a message to the user equipment in the cell, the multiple consecutive symbols are sent in sequence, and if the currently to-be-transmitted symbol is the transition interval, then the transition interval corresponds to Beam switching is performed within the duration. When the base station determines that the current to-be-transmitted signal is the transition interval, the base station performs beam switching on the duration corresponding to the transition interval, and multiplexes the duration corresponding to the transition interval as the duration of the beam handover, thereby reducing the beam switching time.
在一个可能的设计中,所述转换间隔包括:用于上行到下行转换的时间间隔;或者,用于下行到上行转换的保护间隔。In one possible design, the transition interval includes: a time interval for uplink to downlink transitions; or a guard interval for downlink to uplink transitions.
在一个可能的设计中,基站在获取待以模拟波束形式发送的多个连续符号之后,确定该多个连续符号中的目标符号,目标符号所对应的时长为预设的用于进行波束切换的时长;其中,通过如下方式,在该多个连续符号中设置该目标符号:基于多个连续符号的前后顺序,并按照预设的符号间隔数量,依次确定该多个连续符号所对应的符号位中,待预留波束切换时间的待定符号位;如果该多个连续符号中存在转换间隔,则从待定符号位中确定不与转换间隔相邻的目标符号位,并将目标符号位设置为该目标符号,从而无需在与该转换间隔相邻的待定位置点预留波束切换时间,从而可以减少了预留的波束切换时间;这样,向UE发送的消息还可以用于将基站在该目标符号处进行波束切换的信息通知给该用户设备。In a possible design, after acquiring a plurality of consecutive symbols to be sent in the form of an analog beam, the base station determines a target symbol in the plurality of consecutive symbols, and the duration corresponding to the target symbol is preset for performing beam switching. a time length; wherein the target symbol is set in the plurality of consecutive symbols by: determining a symbol bit corresponding to the plurality of consecutive symbols according to a preset number of consecutive symbol intervals based on a sequence of the plurality of consecutive symbols a pending sign bit of the beam switching time to be reserved; if there is a transition interval in the plurality of consecutive symbols, determining a target sign bit not adjacent to the conversion interval from the pending sign bit, and setting the target sign bit to the The target symbol, thereby eliminating the need to reserve beam switching time at a pending location adjacent to the transition interval, thereby reducing the reserved beam switching time; thus, the message sent to the UE can also be used to base the base station on the target symbol The information on the beam switching is notified to the user equipment.
在一种可能的设计中,可以通过物理下行控制信道或者高层无线资源控制向该小区内的用户传输该消息。In one possible design, the message may be transmitted to users within the cell through a physical downlink control channel or higher layer radio resource control.
在一种可能的设计中,该消息用于将在所述转换间隔之前最近一次发射波束所采用的标识信号,以及在所述转换间隔符号之后最近一次发射波束所采用的该标识信号,通知给所述用户设备;其中,该标识信号包括:公共参考信号、状态信息参考信号或者发现信号中的一项或多于一项。In a possible design, the message is used to notify the identification signal used by the most recent transmit beam before the transition interval, and the identification signal used by the latest transmit beam after the transition interval symbol. The user equipment; wherein the identification signal comprises one or more of a common reference signal, a status information reference signal, or a discovery signal.
另一方面,本发明实施例提供了一种基站,该基站具有实现上述方法实际中基站行为的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的 软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。On the other hand, an embodiment of the present invention provides a base station, which has a function of realizing the behavior of a base station in the actual method. The functions can be implemented by hardware or by hardware. Software Implementation. The hardware or software includes one or more modules corresponding to the functions described above.
在一种可能的设计中,该基站包括处理器和发射器,该处理器被配置为支持基站执行上述方法中相应的功能;发射器用于支持基站与UE之间的通信,向UE发送上述方法中所涉及的信息或者指令。所述基站还可以包括存储器,所述存储器用于与处理器耦合,其保存基站必要的程序指令和数据。In a possible design, the base station includes a processor and a transmitter, the processor configured to support the base station to perform a corresponding function in the foregoing method; the transmitter is configured to support communication between the base station and the UE, and send the foregoing method to the UE Information or instructions involved in this. The base station can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
此外,以上基站也可以为其他无线网络设备,UE也可以为其他无线网络设备,比如,基站上位为第一无线网络设备,UE上位为第二无线网络设备,第一无线网络设备和第二无线网络设备可以执行以上所提供的方法,第一无线网络设备可以包括处理器和收发器,该处理器被配置为支持第一无线网络设备执行上述方法中相应的功能;发射器用于支持第一无线网络设备与第二无线网络设备之间的通信,向第二无线网络设备发送上述方法中所涉及的信息或者指令。所述基站还可以包括存储器,所述存储器用于与处理器耦合,其保存第一无线网络设备必要的程序指令和数据。In addition, the above base station may also be other wireless network devices, and the UE may also be other wireless network devices. For example, the base station is the first wireless network device, the UE is the second wireless network device, the first wireless network device, and the second wireless device. The network device can perform the method provided above, the first wireless network device can include a processor and a transceiver configured to support the first wireless network device to perform a corresponding function in the above method; the transmitter is configured to support the first wireless The communication between the network device and the second wireless network device transmits the information or instructions involved in the above method to the second wireless network device. The base station can also include a memory for coupling with the processor that retains program instructions and data necessary for the first wireless network device.
相较于现有技术,本发明提供的方案可以降低波束切换的开销。Compared with the prior art, the solution provided by the present invention can reduce the overhead of beam switching.
附图说明DRAWINGS
为了更清楚地说明本申请实施例的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍。In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below.
图1示出了本申请一种通信***的架构图;1 shows an architectural diagram of a communication system of the present application;
图2a为图1所示的通信***中的基站的结构示意图;2a is a schematic structural diagram of a base station in the communication system shown in FIG. 1;
图2b为图1所示的通信***中的用户设备的结构示意图;2b is a schematic structural diagram of user equipment in the communication system shown in FIG. 1;
图3为混合波束成形的示意图;Figure 3 is a schematic diagram of hybrid beamforming;
图4示出了本申请一种波束处理方法一个实施例的流程示意图;4 is a schematic flow chart of an embodiment of a beam processing method according to the present application;
图5示出了本申请在多个连续符号对应的符号位中设置目标符号的一种实现方式的流程示意图;FIG. 5 is a schematic flow chart showing an implementation manner of setting a target symbol in a symbol bit corresponding to a plurality of consecutive symbols in the present application;
图6示出了本申请一种基站的一个实施例的结构示意图。FIG. 6 is a schematic structural diagram of an embodiment of a base station according to the present application.
具体实施方式 detailed description
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
本申请实施例的技术方案可具体应用于各种通信网络中,例如:全球移动通讯***(Global System of Mobile communication,简称为“GSM”),码分多址(Code Division Multiple Access,简称为“CDMA”)***,宽带码分多址(Wideband Code Division Multiple Access Wireless,简称为“WCDMA”),通用分组无线业务(GPRS,General Packet Radio Service),长期演进(Long Term Evolution,简称为“LTE”),未来网络,如5G,D2D(device to device)网络,M2M(machine to machine)网络等等。The technical solutions of the embodiments of the present application may be specifically applied to various communication networks, for example, Global System of Mobile communication (GSM), and Code Division Multiple Access (referred to as “Code Division Multiple Access”). CDMA") system, Wideband Code Division Multiple Access Wireless (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE) ), future networks, such as 5G, D2D (device to device) networks, M2M (machine to machine) networks, and so on.
本申请中所涉及到的用户设备(User Equipment,简称为“UE”)还可称之为终端(Terminal)、移动台(Mobile Station,简称为“MS”)或移动终端(Mobile Terminal)等。其可以经无线接入网(如RAN,Radio Access Network)与一个或多个核心网进行通信,用户设备可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。在本申请实施例中,基站可以是GSM或CDMA中的基站,如基站收发台(Base Transceiver Station,简称为“BTS”),也可以是WCDMA中的基站,如NodeB,还可以是LTE中的演进型基站,如eNB或e-NodeB(evolutional Node B),或未来网络中的基站,本申请实施例不做限定。User equipment ("UE") referred to in this application may also be referred to as a terminal, a mobile station ("MS" for short), or a mobile terminal (Mobile Terminal). It can communicate with one or more core networks via a radio access network (such as a RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. It can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network. In the embodiment of the present application, the base station may be a base station in GSM or CDMA, such as a base transceiver station (Base Transceiver Station, referred to as "BTS"), or a base station in WCDMA, such as a NodeB, or may be in LTE. The embodiment of the present application is not limited in the embodiment of the present application, such as an eNB or an e-NodeB (evolutional Node B), or a base station in a future network.
下面对本发明实施例的应用场景进行介绍。请参见图1,图1是本申请实施例提供的一种通信***的架构图。具体的,该通信***中包括基站和至少一个用户设备(图中仅示出用户设备1、用户设备2和用户设备3),该基站和用户设备之间通过无线信号进行通信,该无线信号由包括多个符号的子帧组成。The application scenario of the embodiment of the present invention is introduced below. Referring to FIG. 1, FIG. 1 is a structural diagram of a communication system according to an embodiment of the present application. Specifically, the communication system includes a base station and at least one user equipment (only the user equipment 1, the user equipment 2, and the user equipment 3 are shown in the figure), and the base station and the user equipment communicate by using a wireless signal, and the wireless signal is A sub-frame consisting of multiple symbols.
应理解,图1所示的通信***架构中仅示出了一个基站(孤立基站)的情形,但本申请并不限于此。该通信***中还可包括除该基站以外的,在相同的时频资源上传输业务的近邻基站和用户设备,每个基站的覆盖范围内还可以包括其他数量的用户设备。进一步可选的,图1中基站和用户设备所在的无线通信***还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例 不做限定。It should be understood that only one base station (isolated base station) is shown in the communication system architecture shown in FIG. 1, but the application is not limited thereto. The communication system may further include neighboring base stations and user equipments that transmit services on the same time-frequency resource except the base station, and each of the base stations may include other numbers of user equipments in the coverage. Further, the wireless communication system in which the base station and the user equipment are located in FIG. 1 may further include other network entities, such as a network controller, a mobility management entity, and the like. Not limited.
进一步的,请一并参见图2a和图2b,图2a为图1所示的通信***中的基站的结构示意图。如图2a所示,基站可以包括天线阵列、双工器、发射机(Transmitter,简称为“TX”)、接收机(Receiver,简称为“RX”)(TX和RX可以统称为收发机TRX)、以及基带处理部分。其中,双工器用于实现天线阵列,既可用于发送信号,又可用于接收信号。TX用于实现射频信号和基带信号之间的转换,通常TX可以包括功率放大器(Power Amplifier,简称为“PA”)、数模转换器(Digital to Analog Converter,简称为“DAC”)和变频器。通常RX可以包括低噪声放大器(Low-Noise Amplifier,简称为“LNA”)、模数转换器(Analog to Digital Converter,简称为“ADC”)和变频器。基带处理部分用于实现所发送或接收的信号的处理,比如层映射、预编码、调制/解调、编码/编译等,并且对于物理控制信道、物理数据信道、物理广播信道、参考信号等进行分别的处理。进一步的,基站还可以包括控制部分,用于进行多用户调度和资源分配、导频调度、用户物理层参数配置等。Further, please refer to FIG. 2a and FIG. 2b together. FIG. 2a is a schematic structural diagram of a base station in the communication system shown in FIG. 1. As shown in FIG. 2a, the base station may include an antenna array, a duplexer, a transmitter (Transmitter, referred to as "TX"), and a receiver (Receiver, referred to as "RX") (TX and RX may be collectively referred to as a transceiver TRX). And the baseband processing part. Among them, the duplexer is used to implement an antenna array, which can be used for both transmitting signals and receiving signals. TX is used to convert between RF signal and baseband signal. Generally, TX can include Power Amplifier ("PA"), Digital to Analog Converter ("DAC") and inverter. . Generally, the RX may include a Low-Noise Amplifier (LNA), an Analog to Digital Converter (ADC), and a frequency converter. The baseband processing section is used to implement processing of transmitted or received signals, such as layer mapping, precoding, modulation/demodulation, encoding/compiling, etc., and for physical control channels, physical data channels, physical broadcast channels, reference signals, and the like. Separate processing. Further, the base station may further include a control part, configured to perform multi-user scheduling and resource allocation, pilot scheduling, user physical layer parameter configuration, and the like.
如图2b所示,图2b为图1所示的通信***中的用户设备的结构示意图。用户设备可以包括天线、双工器、TX和RX(TX和RX可以统称为收发机TRX),以及基带处理部分。如图2b所示,用户设备具有多天线(即天线阵列)。应理解,用户设备也可以具有单天线。其中,双工器使天线阵列实现既可用于发送信号,又可用于接收信号。TX用于实现射频信号和基带信号之间的转换,通常TX可以包括PA、DAC和变频器,通常RX可以包括LNA、ADC和变频器。基带处理部分用于实现所发送或接收的信号的处理,比如,层映射、预编码、调制/解调、编码/译码等,并且对于物理控制信道、物理数据信道、物理广播信道、参考信号等进行分别的处理。进一步的,用户设备还可以包括控制部分,用于请求上行物理资源、计算下行信道对应的信道状态信息(Channel State Information,简称为“CSI”)、判断下行数据包是否接收成功等。As shown in FIG. 2b, FIG. 2b is a schematic structural diagram of user equipment in the communication system shown in FIG. 1. User equipment may include an antenna, a duplexer, TX and RX (TX and RX may be collectively referred to as transceiver TRX), and a baseband processing portion. As shown in Figure 2b, the user equipment has multiple antennas (i.e., antenna arrays). It should be understood that the user equipment may also have a single antenna. Among them, the duplexer enables the antenna array to be used for both transmitting signals and receiving signals. TX is used to convert between RF signal and baseband signal. Usually TX can include PA, DAC and inverter. Usually RX can include LNA, ADC and inverter. The baseband processing section is used to implement processing of transmitted or received signals, such as layer mapping, precoding, modulation/demodulation, encoding/decoding, etc., and for physical control channels, physical data channels, physical broadcast channels, reference signals Wait for separate processing. Further, the user equipment may further include a control part, configured to request an uplink physical resource, calculate channel state information (CSI) corresponding to the downlink channel, and determine whether the downlink data packet is successfully received.
基站侧和/或用户侧通过配置天线阵列,利用波束成形技术增强覆盖。所述天线阵列的波束成形包括天线阵列形成的模拟波束和混合波束。进一步的,请参见图3,图3为混合波束成形示意图。如图3所示,基带处理部分完成一 般的基带数字信号处理,包括CRC校验、编码、调制、加扰、数字波束成形等;基带处理后的数字信号送入发射射频(Radio Frequency,简称为“RF”)链路(图中仅画出两个射频链路,在实际应用中,可以包含一个至多个射频链路),发射射频链路完成上采样、发射成形滤波、削波、模拟数字转换等功能;射频处理后的模拟信号被送到多个功放、移相器、天线单元中,用来进行模拟波束成形;基带处理部分通过控制射频移相器的相位,即可实现具有一定指向性的信号的发送。所述指向性指的是电磁波能量的传播指向性,这种由多个模拟移相器合成的具有指向性的信号称为模拟波束。射频移相器一般是通过延迟线或者PIN二极管实现的,在相位调整时需要消耗一定时间,因此在进行通信协议设计时,需要考虑波束切换时间的影响。The base station side and/or the user side enhance the coverage by using beamforming techniques by configuring the antenna array. Beamforming of the antenna array includes an analog beam and a hybrid beam formed by an antenna array. Further, please refer to FIG. 3, which is a schematic diagram of hybrid beamforming. As shown in Figure 3, the baseband processing section completes one General baseband digital signal processing, including CRC check, encoding, modulation, scrambling, digital beamforming, etc.; baseband processed digital signal is sent to the radio frequency (Radio Frequency, referred to as "RF") link (only Draw two RF links, which can include one or more RF links in practical applications, and transmit RF links to perform functions such as upsampling, transmit shaping filtering, clipping, analog-to-digital conversion, and analog signals after RF processing. It is sent to multiple power amplifiers, phase shifters and antenna units for analog beamforming; the baseband processing part can realize the transmission of signals with certain directivity by controlling the phase of the RF phase shifter. The directivity refers to the directivity of electromagnetic wave energy, and the signal with directivity synthesized by a plurality of analog phase shifters is called an analog beam. The RF phase shifter is generally implemented by a delay line or a PIN diode. It takes a certain time to adjust the phase. Therefore, when designing the communication protocol, the influence of the beam switching time needs to be considered.
由于每次波束切换均需要占用一定时长,在以模拟波束形式发送多个连续符号的过程中,每间隔预设数量个符号就需要预留一次波束切换的切换时间,从而使得波束切换占用较多时长。Each of the beam switching needs to occupy a certain length of time. In the process of transmitting multiple consecutive symbols in the form of an analog beam, the switching time of the beam switching needs to be reserved once for each preset number of symbols, so that the beam switching takes up more duration.
下面将基于上面所述的本申请涉及的共性方面,对本申请实施例进一步详细说明。The embodiments of the present application will be further described in detail below based on the common aspects of the present application described above.
本申请实施例提供了一种波束处理方法,和基于该方法的基站。基站获取待以波束形式发送的多个符号,如果这多个符号中存在用于进行上下行之间转换的转换间隔时,则向UE发送消息,该消息用于将基站在该转换间隔处进行波束切换的信息,通知给UE。The embodiment of the present application provides a beam processing method, and a base station based on the method. The base station acquires a plurality of symbols to be sent in the form of a beam, and if there is a transition interval for performing the transition between the uplink and the downlink, the message is sent to the UE, where the message is used to perform the base station at the transition interval. The information of the beam switching is notified to the UE.
如果待发送的多个连续符号中包括用于进行上下行之间转换的转换间隔,则由于需要在该转换间隔处进行下行到上行或者上行到下行的转换,而设置该转换间隔所占用的时长较长,且该转换间隔所占用的时长大于波束切换所需的时长。这样,在基站在转换间隔处进行下行到上行或者上行到下行转换的同时,进行波束切换,则无需单独耗费波束切换时间,从而复用该转换间隔所占用的时长来进行波束切换,有利于在增加波束切换次数的前提下,减少波束切换的时间开销。If the multiple consecutive symbols to be sent include a transition interval for performing the transition between uplink and downlink, the duration of the transition interval is set due to the need for downlink to uplink or uplink to downlink conversion at the transition interval. Longer, and the transition interval takes longer than the length of time required for beam switching. In this way, when the base station performs downlink to uplink or uplink to downlink conversion at the transition interval, and performs beam switching, it is not necessary to separately consume the beam switching time, thereby multiplexing the duration occupied by the conversion interval to perform beam switching, which is beneficial to On the premise of increasing the number of beam switching times, the time overhead of beam switching is reduced.
下面结合附图4,对本申请的实施例提供的方案进行说明。The solution provided by the embodiment of the present application will be described below with reference to FIG. 4 .
如图4所示,本申请实施例提供的波束处理方法包括: As shown in FIG. 4, the beam processing method provided by the embodiment of the present application includes:
401,获取待以模拟波束形式发送的多个连续符号。401. Acquire a plurality of consecutive symbols to be sent in the form of an analog beam.
其中,获取的多个连续符号可以与现有模拟波束或混合模拟波束发射中的符号相同,如该多个连续符号可以为一个子帧,在此不再赘述。The multiple consecutive symbols that are obtained may be the same as the symbols in the existing analog beam or the mixed analog beam, for example, the multiple consecutive symbols may be one subframe, and details are not described herein again.
402,如果该多个连续符号中包括至少一个用于进行上下行之间转换的转换间隔时,则向小区内的用户设备发送消息。402. If the multiple consecutive symbols include at least one transition interval for performing uplink-downlink transition, send a message to the user equipment in the cell.
其中,该消息用于将基站在该转换间隔处进行波束切换的信息,通知给UE。其中,本申请实施例中的UE为处于该基站覆盖的小区内的UE。The message is used to notify the UE of information that the base station performs beam switching at the transition interval. The UE in the embodiment of the present application is a UE in a cell covered by the base station.
如果该多个连续符号中包括转换间隔,则说明由该多个连续符号组成的帧或子帧中,同时包括下行符号和上行符号,基站需要在该转换间隔对应的时间间隔内进行上下行之间的转换。其中,上下行之间的转换可以为上行到下行的转换或者是下行到上行之间的转换。If the transition interval is included in the multiple consecutive symbols, it is indicated that the frame or the subframe consisting of the multiple consecutive symbols includes both the downlink symbol and the uplink symbol, and the base station needs to perform uplink and downlink in the time interval corresponding to the transition interval. Conversion between. The transition between uplink and downlink may be an uplink to downlink transition or a downlink to uplink transition.
在本申请实施例中,基站将进行上下行之间转换的时长作为预留的波束切换时间,即,将该转换间隔所对应的时间确定为进行波束切换的时间。In the embodiment of the present application, the base station uses the duration of the transition between uplink and downlink as the reserved beam switching time, that is, the time corresponding to the transition interval is determined as the time for performing beam switching.
本申请实施例中,如果待以模拟波束形式发送的多个连续符号中包括用于进行上下行之间转换的转换间隔,则将转换间隔所对应的时间作为进行波束切换的时间,并通知给UE,实现了复用基站进行上下行之间转换的时间来进行波束切换,从而无需在该转换间隔处单独预留波束切换时间,有利于减少波束切换时间。In the embodiment of the present application, if a plurality of consecutive symbols to be transmitted in the form of an analog beam includes a transition interval for performing uplink-downlink transition, the time corresponding to the transition interval is used as a time for performing beam switching, and is notified to The UE implements the time for the multiplexed base station to perform the transition between uplink and downlink to perform beam switching, so that it is not necessary to separately reserve the beam switching time at the transition interval, which is advantageous for reducing the beam switching time.
同时,由于复用该转换间隔的时间进行波束切换不会增加波束开销,则当该多个连续符号中出现用于进行上下行之间转换的转换间隔就进行波束切换,也有利于在不增加波束切换开销的前提下,增加波束切换次数,从而可以减少波束切换周期过大而导致的UE跟踪慢、接入延迟大等UE的信号接收异常。At the same time, since the beam switching does not increase the beam overhead when the time of multiplexing the switching interval is performed, beam switching is performed when a transition interval for performing uplink-downlink transition occurs in the plurality of consecutive symbols, which is also beneficial not to increase On the premise of the beam switching overhead, the number of beam switching times is increased, so that the signal reception abnormality of the UE with slow tracking and large access delay caused by excessive beam switching period can be reduced.
可以理解的是,在向小区内的UE发送消息之后,基站可以发送该多个连续的符号,且当待发送符号为用于进行上下行之间转换的转换间隔时,则基站在该转换间隔所对应的时长内进行上下行之间的转换;同时,基站在该转换间隔所对应的时长内进行波束切换,即通过改变移相器的相位,改变波束输出方向。It can be understood that after sending a message to the UE in the cell, the base station may send the multiple consecutive symbols, and when the to-be-transmitted symbol is a transition interval for performing uplink-to-downlink transition, the base station is at the transition interval. The conversion between the uplink and the downlink is performed within the corresponding duration; at the same time, the base station performs beam switching within the duration corresponding to the transition interval, that is, changes the phase of the phase shifter to change the beam output direction.
可以理解的是,用于进行上下行之间转换的转换间隔可以理解为该多个连续符号中包括的用于进行上下行转换的时长。而该转换间隔具体可以分为两 种:一种是用于上行到下行转换的时间间隔。另一种是用于下行到上行转换的时间间隔,其中,用于下行到上行转换的时间间隔也可以称为保护间隔(GP,guard period)。It can be understood that the transition interval for performing the transition between uplink and downlink can be understood as the duration of time for performing uplink and downlink conversion included in the plurality of consecutive symbols. The conversion interval can be divided into two Kind: One is the time interval for uplink to downlink conversion. The other is a time interval for downlink to uplink conversion, wherein the time interval for downlink to uplink conversion may also be referred to as guard interval (GP).
在实际应用中,该连续多个符号中有可能仅包括用于上行到下行转换的时间间隔,或者是仅包括保护间隔;当然,也可能存在该连续的多个符号中同时包括多个转换间隔的情况,在该种情况下,这多个连续符号会交替出现用于下行到上行转换的时间间隔以及上行到下行转换的时间间隔。然而基站在上行通信过程中并不会进行波束发射,因此,如果在任意相邻的下行转上行时间间隔和上行转下行时间间隔这两个转换间隔处均进行波束切换,则由于在这两个转换间隔处所进行的两次波束切换中,只有上行符号而不存在基站的波束发射,而使得这两次波束切换中有一次波束切换是没有意义的。In practical applications, the consecutive multiple symbols may include only the time interval for uplink to downlink conversion, or only the guard interval; of course, there may be multiple consecutive transitions in the consecutive multiple symbols. In this case, in this case, the plurality of consecutive symbols alternately appear for the time interval for the downlink to uplink transition and the time interval for the uplink to downlink transition. However, the base station does not perform beam transmission during uplink communication. Therefore, if beam switching is performed at any two adjacent switching intervals, the uplink switching time interval and the uplink switching downlink time interval, Of the two beam switchings performed at the transition interval, there is only the uplink symbol and no beam transmission of the base station, so that one of the two beam handovers is meaningless.
为了减少无意义的波束切换,如果该多个连续符号中包括多个用于进行上下行之间转换的转换间隔时,则可以仅仅选取一种类型的转换间隔的时长复用为波束切换的时长。如,可以将这多个连续符号中的保护间隔符号所对应的时长作为进行波束切换的时长。In order to reduce the meaningless beam switching, if the plurality of consecutive symbols include multiple conversion intervals for performing uplink-downlink conversion, only one type of conversion interval length duration multiplexing may be selected as the duration of the beam switching. . For example, the duration corresponding to the guard interval symbol in the plurality of consecutive symbols may be used as the duration of beam switching.
考虑到基站进行了上行到下行的转换后,就会波束发送,因此,可以将用于上行到下行转换的时间间隔所对应的时长作为进行波束切换的时长,即,如果该多个连续符号中包括用于上行到下行转换的转换间隔时,则向UE发送消息,该消息用于将基站在该用于上行到下行转换的转换间隔处进行波束切换的信息通知给UE。Considering that the base station performs uplink-to-downlink conversion, the beam is transmitted. Therefore, the duration corresponding to the time interval for uplink-to-downlink conversion can be used as the duration of beam switching, that is, if the multiple consecutive symbols are used. When a transition interval for uplink to downlink conversion is included, a message is sent to the UE, which is used to notify the UE of information that the base station performs beam switching at the transition interval for uplink to downlink conversion.
需要说明的是,在实际应用中,当获取到的多个连续符号中所包含的符号数量较多时,在待发送的多个连续符号中,除了会包括用于上下行转换的转换间隔外,还可能会包括:预设的目标符号,该目标符号所对应的时长为预设的用于进行波束切换的时长。It should be noted that, in practical applications, when a plurality of consecutive symbols are acquired, the number of symbols to be sent is not included in the transition interval for uplink and downlink conversion. It may also include: a preset target symbol, and the duration corresponding to the target symbol is a preset duration for performing beam switching.
则,在获取到该多个连续符号之后,可以确定出该多个连续符号中的目标符号。相应的,基站向UE发送的消息除了用于将基站在该转换间隔处进行波束切换的信息,通知给UE之外,还可以用于将基站在目标符号所对应的时长内进行波束切换的信息通知给该UE。Then, after acquiring the plurality of consecutive symbols, the target symbols in the plurality of consecutive symbols may be determined. Correspondingly, the message sent by the base station to the UE is used to notify the UE of the beam switching in the time interval corresponding to the target symbol. Notify the UE.
可以理解的是,该多个连续符号中所包含的目标符号的具***置以及具体 数量可以由生成该多个连续符号的基站根据需要设置。而在该多个连续符号所对应的符号位中放置一个或多个目标符号的实现方式可以有多种。It can be understood that the specific position and specificity of the target symbol included in the plurality of consecutive symbols The number may be set by a base station that generates the plurality of consecutive symbols as needed. There may be multiple implementations of placing one or more target symbols in the sign bits corresponding to the plurality of consecutive symbols.
可选的,可以参见图5,其示出了在多个连续符号对应的符号位中设置目标符号的一种实现方式的流程示意图,该种方式的实现过程可以包括:Optionally, reference may be made to FIG. 5, which is a schematic flowchart of an implementation manner of setting a target symbol in a symbol bit corresponding to a plurality of consecutive symbols, and the implementation process of the method may include:
501,基于该多个连续符号的前后顺序,并按照预设的符号间隔数量,依次确定该多个连续符号所对应的符号位中,待预留波束切换时间的待定符号位。501. Determine a to-be-determined symbol bit of a beam switching time to be reserved among the symbol bits corresponding to the plurality of consecutive symbols, according to a sequence of the plurality of consecutive symbols, and according to a preset number of symbol intervals.
502,如果这多个连续符号中存在至少一个转换间隔,则从该待定符号位中确定不与该转换间隔相邻的目标符号位,并在该目标符号位设置该目标符号。502. If there is at least one transition interval in the plurality of consecutive symbols, determine a target symbol bit that is not adjacent to the transition interval from the pending sign bit, and set the target symbol at the target sign bit.
其中,该目标符号所对应的时长为进行波束切换的时长。The duration corresponding to the target symbol is the duration of the beam switching.
可以理解的是,当待定符号位与转换间隔相邻时,可以直接将该转换间隔所对应的时长作为波束切换所需的时长,从而无需在该待定符号位处再单独预留波束切换时间,因此,与该转换间隔相邻的待定符号位无需作为进行波束切换的位置点,而只需将不与转换间隔相邻的待定符号位以及该转换间隔作为待进行波束切换的位置点。It can be understood that when the pending sign bit is adjacent to the transition interval, the duration corresponding to the transition interval can be directly used as the duration required for beam switching, so that it is not necessary to separately reserve the beam switching time at the pending sign bit. Therefore, the pending sign bit adjacent to the transition interval need not be the position point for performing beam switching, but only the pending sign bit not adjacent to the transition interval and the transition interval are regarded as the position point to be beam-switched.
其中,将目标符号位确定为待进行波束切换的位置点后,目标符号位所对应的时长即为预留出的进行波束切换时长。After the target symbol bit is determined as the position of the beam to be switched, the duration corresponding to the target symbol bit is the reserved beam switching duration.
可选的,在该目标符号位设置该目标符号可以理解为在目标符号位放置设定时长的空白时长,比如空白符号,其中,该设定时长可以根据波束切换所需的时长来进行设定。在目标符号位设置空白符号后,后续进行波束切换时,便可以在该空白符号所对应的设定时长内进行波束切换。Optionally, setting the target symbol in the target sign bit can be understood as a blank duration, such as a blank symbol, placed in the target symbol bit, wherein the set duration can be set according to the length of time required for the beam switching. . After the blank symbol is set in the target symbol bit, when the beam switching is performed subsequently, the beam switching can be performed within the set duration corresponding to the blank symbol.
当然,也可以通过其他方式标识出在该目标符号位预留了波束切换时间,以便在发送该多个连续符号的过程中,当待发送符号为该目标符号时,在该目标符号所对应的时长内不进行符号发送,而仅在该目标符号所对应的时长内进行波束切换。Certainly, the beam switching time may be reserved in the target symbol bit by using other methods, so that, when the plurality of consecutive symbols are sent, when the symbol to be transmitted is the target symbol, corresponding to the target symbol The symbol transmission is not performed within the duration, but the beam switching is performed only within the duration corresponding to the target symbol.
如果按照预设的符号间隔,从该多个连续符号所对应的符号位中确定出的待预留波束切换时间的待定符号位,与该多个连续符号中的转换间隔相邻,则可以直接将转换间隔所对应的时间作为该待定位置点所需预留的波束切换时 间,从而减少了预留的波束切换时间,降低了波束切换的时间开销。If the predetermined sign bit to be reserved from the sign bit corresponding to the plurality of consecutive symbols is adjacent to the transition interval in the plurality of consecutive symbols according to the preset symbol interval, the direct The time corresponding to the transition interval is used as the beam switching required for the reserved location point. Therefore, the reserved beam switching time is reduced, and the time overhead of beam switching is reduced.
需要说明的是,在本申请实施例中该转换间隔可以为用于进行上下行之间转换的所有转换间隔,也可以仅仅是用于下行到上行转换的转换间隔;或者是仅仅为GP。It should be noted that, in the embodiment of the present application, the conversion interval may be all conversion intervals for performing conversion between uplink and downlink, or may be only conversion intervals for downlink to uplink conversion; or only GP.
在以上任意一个实施例中,在将在该目标符号处和转换间隔处进行波束切换的信息通知给UE之后,基站可以以模拟波束的形式发送给多个连续符号。具体的,依次发送该多个连续符号;在发送该多个连续符号的过程中,如果检测到转换间隔符号或者预设的目标符号,则控制移相器的相位改变,以实现波束方向切换。In any of the above embodiments, after notifying the UE of the beam switching at the target symbol and the transition interval, the base station may transmit to the plurality of consecutive symbols in the form of an analog beam. Specifically, the plurality of consecutive symbols are sequentially transmitted; in the process of transmitting the plurality of consecutive symbols, if a transition interval symbol or a preset target symbol is detected, a phase change of the phase shifter is controlled to implement beam direction switching.
可以理解的是,在以上任意一个实施例中,基站可以通过多种方式将在多个连续符号中的转换间隔处进行的波束切换的信息通知给UE。可选的,基站可以通过隐式或者显式,动态或者半动态的向UE发送消息。该消息可以用于将该转换间隔前后的模拟波束信息发送给UE,该模拟波束信息包括用于区分不同模拟波束的模拟波束标识。当然,基站将目标符号处进行波束切换的信息通知给UE的方式也可以是通过隐式或者显示,动态或半动态的向UE发送消息。It can be understood that, in any of the above embodiments, the base station can notify the UE of the information of the beam switching performed at the transition interval in the plurality of consecutive symbols in multiple manners. Optionally, the base station may send the message to the UE by implicit or explicit, dynamic or semi-dynamic. The message may be used to send analog beam information before and after the transition interval to the UE, where the simulated beam information includes an analog beam identifier for distinguishing different analog beams. Certainly, the manner in which the base station notifies the UE of the beam switching information at the target symbol may also be that the message is sent to the UE dynamically or semi-dynamically by implicit or display.
模拟波束信息可以通过指定的标识信号承载。如,该模拟波束信息可以通过小区级参考信号(CRS,cell-specific reference signal)(也可称为公共参考信号)承载。基站可以将发射该多个连续符号段中不同符号段所用的模拟波束对应的CRS,发送给小区内的用户设备。相应的,当不同符号段所对应的模拟波束用波束标识进行区分时,则不同模拟波束标识对应着不同的公共参考信号,也即公共参考信号与模拟波束标识一一对应。The analog beam information can be carried by the specified identification signal. For example, the analog beam information may be carried by a cell-specific reference signal (CRS) (also referred to as a common reference signal). The base station may send the CRS corresponding to the analog beam used for transmitting different symbol segments in the plurality of consecutive symbol segments to the user equipment in the cell. Correspondingly, when the analog beams corresponding to different symbol segments are distinguished by the beam identifier, the different analog beam identifiers correspond to different common reference signals, that is, the common reference signals and the analog beam identifiers are in one-to-one correspondence.
具体的,当消息用于将基站在该转换间隔处进行波束切换的信息,通知给该UE时,则可以将在该转换间隔之前最近一次发射波束所采用的CRS,通知给UE,当然,还可以将在该转换间隔之后最近一次发射波束所采用的CRS,通知给UE。也就是说,将该多个连续符号中,被该转换间隔划分出的多个符号段所各自对应的CRS,通知给UE。其中,该多个符号段采用不同发射方向的波束进行发射。 Specifically, when the message is used to notify the UE of the information that the base station performs beam switching at the transition interval, the CRS used for the latest transmit beam before the transition interval may be notified to the UE, and of course, The CRS employed by the most recent transmit beam after the transition interval may be notified to the UE. That is to say, among the plurality of consecutive symbols, the CRS corresponding to each of the plurality of symbol segments divided by the conversion interval is notified to the UE. The plurality of symbol segments are transmitted by using beams of different transmission directions.
当消息用于将基站在该目标符号处和该转换间隔处进行波束切换的信息,通知给该UE时,则可以该消息中可以携带有该多个连续符号中的多个目标符号段所对应公共参考信号。其中,该目标符号段为该多个连续符号中,被预设的目标符号和该转换间隔切分出的多个符号段。When the message is used to notify the UE of the information that the base station performs beam switching at the target symbol and the transition interval, the message may be carried by the plurality of target symbol segments in the plurality of consecutive symbols. Common reference signal. The target symbol segment is a plurality of symbol segments that are segmented by the preset target symbol and the conversion interval among the plurality of consecutive symbols.
当消息用于将基站在该目标符号处进行波束切换的信息,通知给该UE时,则可以将目标符号处之前最近一次发射波束所采用的CRS,通知给UE;和/或,将在该目标符号处之后最近一次发射波束所采用的CRS,通知给UE。When the message is used to notify the UE of the beam handover of the base station at the target symbol, the CRS used by the previous transmission beam at the target symbol may be notified to the UE; and/or The CRS used by the latest transmit beam after the target symbol is notified to the UE.
当然,除了通过向UE发送CRS外,基站还可以向UE发送其他标识信号,如基站可以向UE发送信道状态信息参考信号(CSI-RS,Channel-State Information–Reference Signal),或者向UE发送发现信号(Discovery Reference Signal)中的一项或多于一项。其中,该发现信号可以包括CRS、CSI-RS以及主、辅同步信号中的至少一个或多于一个。Of course, in addition to sending the CRS to the UE, the base station may also send other identification signals to the UE, for example, the base station may send a channel state information reference signal (CSI-RS, Channel-State Information-Reference Signal), or send a discovery to the UE. One or more than one of the signals (Discovery Reference Signal). The discovery signal may include at least one or more than one of a CRS, a CSI-RS, and a primary and secondary synchronization signals.
可以理解的是,基站通过向UE发送消息,将该基站在该转换间隔或该目标符号处进行波束切换的信息发送给UE后,UE可以确定基站的波束切换情况。如,基站可以在发送该消息的同时,将转换间隔和目标符号所对应的时刻通知给UE,UE结合确定出的波束切换情况以及波束发生改变的时刻,从而使得UE可以确定出能够接收到的模拟波束的时间段,进而可以根据需要在UE无需接收模拟波束的时间段内,将UE设置为休眠状态。It can be understood that, after the base station sends a message to the UE to send the information about the beam handover of the base station at the conversion interval or the target symbol to the UE, the UE may determine the beam handover condition of the base station. For example, the base station may notify the UE of the transition interval and the time corresponding to the target symbol, and the UE combines the determined beam switching situation and the time when the beam is changed, so that the UE can determine that the UE can receive the same. The time period of the analog beam, and then the UE can be set to the sleep state during the time period in which the UE does not need to receive the analog beam.
当然,UE还可以基于基站发送的消息做其他的处理。Of course, the UE can also perform other processing based on the message sent by the base station.
如,对于消息中包括CRS的情况而言,由于UE可以通过测量CRS,来判断小区的信号质量。在测量CRS过程中,会连续测量多个子帧甚至多个帧的CRS信号强度,并计算测量得到的CRS的平均信号强度,然后将CRS的平均信号强度上报给基站。这样,当采用模拟波束发送CRS信号时,UE需要区分测量的不同模拟波束所对应的CRS信号强度,并统计该UE所处波束发射方向上的模拟波束的CRS强度,然后上报给基站;而如果UE不知道该多个字符中转换间隔前后的波束发射方向不同,则会把转换间隔前后不同发射方向的模拟波束作为同一个模拟波束而计算CRS的平均信号强度,从而导致上报给基站的CRS的平均信号强度出错。 For example, for the case where the CRS is included in the message, since the UE can measure the CRS, the signal quality of the cell is determined. During the measurement of the CRS, the CRS signal strength of the multiple subframes or even multiple frames is continuously measured, and the average signal strength of the measured CRS is calculated, and then the average signal strength of the CRS is reported to the base station. In this way, when the CRS signal is transmitted by using the analog beam, the UE needs to distinguish the CRS signal strength corresponding to the measured different analog beams, and collect the CRS strength of the analog beam in the beam transmitting direction of the UE, and then report the CRS strength to the base station; The UE does not know that the beam transmission directions of the multiple characters before and after the transition interval are different, and the analog beam of different transmission directions before and after the transition interval is used as the same analog beam to calculate the average signal strength of the CRS, thereby causing the CRS reported to the base station. The average signal strength is wrong.
可以理解的是,基站发送消息的形式也可以有多种形式,如,消息可以通过物理下行控制信道(PDCCH,Physical Downlink Control Channel)动态传输的信令;又如,消息可以为通过该高层无线资源控制(RRC,Radio Resource Control)传输的信令。It can be understood that the form of the message sent by the base station can also be in various forms, for example, the message can be dynamically transmitted through a physical downlink control channel (PDCCH, Physical Downlink Control Channel); for example, the message can be through the high layer wireless Signaling for resource control (RRC, Radio Resource Control) transmission.
本申请还提供了一种装置,该装置可以为基站,该基站可以实现上述实施例所涉及的基站端所执行的操作。The present application also provides an apparatus, which may be a base station, and the base station may implement the operations performed by the base station involved in the foregoing embodiment.
如图6,示出了该基站的组成结构示意图。该基站可以包括:处理器601和发射器602。FIG. 6 is a schematic diagram showing the structure of the base station. The base station can include a processor 601 and a transmitter 602.
其中,处理器601,用于获取待以波束形式发送的多个连续符号;如果所述多个连续符号中包括用于进行上下行之间转换的转换间隔时,则启动发射器601。The processor 601 is configured to acquire a plurality of consecutive symbols to be sent in the form of a beam. If the plurality of consecutive symbols include a transition interval for performing the transition between uplink and downlink, the transmitter 601 is started.
发射器602,用于向小区内的用户设备发送消息,以及支持UE与其他UE之间进行无线电通信,所述消息用于将基站在所述转换间隔处进行波束切换的信息通知给所述用户设备。The transmitter 602 is configured to send a message to a user equipment in the cell, and support radio communication between the UE and other UEs, where the message is used to notify the user of information that the base station performs beam switching at the transition interval. device.
可以理解的是,图6仅仅示出了基站的简化设计。在实际应用中,基站可以包含任意数量的收发器(也可分为接收器和发射器),处理器,控制器,存储器等,而所有可以实现本发明的基站都在本发明的保护范围之内。It will be appreciated that Figure 6 only shows a simplified design of the base station. In practical applications, the base station may include any number of transceivers (also can be divided into receivers and transmitters), processors, controllers, memories, etc., and all base stations that can implement the present invention are within the scope of the present invention. Inside.
可选的,所述处理器还用于:依次发送所述多个连续符号,且如果当前待发送的符号为所述转换间隔时,则在所述转换间隔所对应的时长内进行波束切换。Optionally, the processor is further configured to: sequentially send the multiple consecutive symbols, and if the currently to-be-transmitted symbol is the transition interval, perform beam switching within a duration corresponding to the transition interval.
可选的,所述转换间隔包括:Optionally, the conversion interval includes:
用于上行到下行转换的时间间隔;Time interval for uplink to downlink conversion;
或者,用于下行到上行转换的保护间隔。Or, a guard interval for downlink to uplink conversion.
可选的,所述处理器还用于:确定所述多个连续符号中的目标符号,所述目标符号所对应的时长为预设的用于进行波束切换的时长;其中,通过如下方式,在所述多个连续符号中设置所述目标符号:基于所述多个连续符号的前后 顺序,并按照预设的符号间隔数量,依次确定所述多个连续符号所对应的符号位中,待预留波束切换时间的待定符号位;如果所述多个连续符号中存在所述转换间隔,则从所述待定符号位中确定不与所述转换间隔相邻的目标符号位,并将所述目标符号位设置为所述目标符号;Optionally, the processor is further configured to: determine a target symbol in the plurality of consecutive symbols, where a duration corresponding to the target symbol is a preset duration for performing beam switching; wherein, by using, Setting the target symbol in the plurality of consecutive symbols: based on before and after the plurality of consecutive symbols And sequentially determining, in accordance with a preset number of symbol intervals, a to-be-signed symbol bit of a beam switching time to be reserved among the symbol bits corresponding to the plurality of consecutive symbols; if the conversion interval exists in the plurality of consecutive symbols Determining, from the pending sign bits, a target sign bit that is not adjacent to the transition interval, and setting the target sign bit as the target symbol;
则所述发射器发送的所述消息还用于将基站在所述目标符号处进行波束切换的信息通知给所述用户设备。The message sent by the transmitter is further used to notify the user equipment of information that the base station performs beam switching at the target symbol.
可选的,处理器向小区内的用户设备发送消息,包括:Optionally, the processor sends a message to the user equipment in the cell, including:
通过物理下行控制信道或者高层无线资源控制向所述小区内的用户传输所述消息。The message is transmitted to users within the cell through a physical downlink control channel or higher layer radio resource control.
可选的,所述消息用于将在所述转换间隔之前最近一次发射波束所采用的标识信号,以及在该转换间隔符号之后最近一次发射波束所采用的该标识信号,通知给所述用户设备,其中,该标识信号可以包括:公共参考信号、状态信息参考信号或者发现信号中的一项或者多于一项。Optionally, the message is used to notify the user equipment of the identification signal used by the latest transmission beam before the conversion interval, and the identification signal used by the latest transmission beam after the conversion interval symbol. The identification signal may include one or more of a common reference signal, a status information reference signal, or a discovery signal.
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言,由于其与实施例公开的方法相对应,所以描述的比较简单,相关之处参见方法部分说明即可。The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本申请。本申请不被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。 The above description of the disclosed embodiments enables those skilled in the art to make or use the application. The application is not limited to the embodiments shown herein, but is to be accorded the broadest scope of the principles and novel features disclosed herein.

Claims (12)

  1. 一种波束处理方法,其特征在于,包括:A beam processing method, comprising:
    获取待以波束形式发送的多个连续符号;Obtaining a plurality of consecutive symbols to be sent in a beam form;
    如果所述多个连续符号中包括用于进行上下行之间转换的转换间隔时,则向小区内的用户设备发送消息,所述消息用于将基站在所述转换间隔处进行波束切换的信息通知给所述用户设备。And if the multiple consecutive symbols include a transition interval for performing uplink-downlink transition, sending a message to the user equipment in the cell, where the message is used to perform beam switching of the base station at the transition interval. Notifying the user device.
  2. 根据权利要求1所述的方法,其特征在于,在所述向小区内的用户设备发送消息之后,还包括:The method according to claim 1, wherein after the sending the message to the user equipment in the cell, the method further includes:
    依次发送所述多个连续符号,且如果当前待发送的符号为所述转换间隔时,则在所述转换间隔所对应的时长内进行波束切换。The plurality of consecutive symbols are sequentially transmitted, and if the currently to-be-transmitted symbol is the transition interval, beam switching is performed within a duration corresponding to the transition interval.
  3. 根据权利要求1或2所述的方法,其特征在于,所述转换间隔包括:The method according to claim 1 or 2, wherein the conversion interval comprises:
    用于上行到下行转换的时间间隔;Time interval for uplink to downlink conversion;
    或者,用于下行到上行转换的保护间隔。Or, a guard interval for downlink to uplink conversion.
  4. 根据权利要求1-3任意一项所述的方法,其特征在于,在所述获取待以波束形式发送的多个连续符号之后,还包括:The method according to any one of claims 1-3, further comprising: after the acquiring a plurality of consecutive symbols to be transmitted in a beam form, further comprising:
    确定所述多个连续符号中的目标符号,所述目标符号所对应的时长为预设的用于进行波束切换的时长;Determining a target symbol in the plurality of consecutive symbols, wherein a duration of the target symbol is a preset duration for performing beam switching;
    则所述消息还用于将所述基站在所述目标符号所对应的时长内进行波束切换的信息通知给所述用户设备;And the message is further used to notify the user equipment that the base station performs beam switching within a duration corresponding to the target symbol;
    其中,通过如下方式,在所述多个连续符号中设置所述目标符号:Wherein the target symbol is set in the plurality of consecutive symbols by:
    基于所述多个连续符号的前后顺序,并按照预设的符号间隔数量,依次确定所述多个连续符号所对应的符号位中,待预留波束切换时间的待定符号位;And determining a to-be-determined symbol bit of a beam switching time to be reserved among the symbol bits corresponding to the plurality of consecutive symbols, according to a sequence of the plurality of consecutive symbols, and according to a preset number of symbol intervals;
    如果所述多个连续符号中存在所述转换间隔,则从所述待定符号位中确定不与所述转换间隔相邻的目标符号位,并将所述目标符号位设置为所述目标符号。If the transition interval exists in the plurality of consecutive symbols, determining a target sign bit that is not adjacent to the transition interval from the pending sign bit, and setting the target sign bit as the target symbol.
  5. 根据权利要求1-4任意一项所述的方法,其特征在于,所述向小区内的用户设备发送消息,包括:The method according to any one of claims 1-4, wherein the sending the message to the user equipment in the cell comprises:
    通过物理下行控制信道或者高层无线资源控制向所述小区内的用户传输所述消息。 The message is transmitted to users within the cell through a physical downlink control channel or higher layer radio resource control.
  6. 根据权利要求1-5任意一项所述的方法,其特征在于,所述消息用于将在所述转换间隔之前最近一次发射波束所采用的标识信号,以及在所述转换间隔符号之后最近一次发射波束所采用的所述标识信号,通知给所述用户设备,其中,所述标识信号包括:公共参考信号、状态信息参考信号或者发现信号中的一项或多于一项。The method according to any one of claims 1 to 5, wherein the message is used for an identification signal used to transmit a beam most recently before the transition interval, and the last time after the transition interval symbol The identification signal used by the transmit beam is notified to the user equipment, where the identification signal includes one or more of a common reference signal, a status information reference signal, or a discovery signal.
  7. 一种基站,其特征在于,包括:A base station, comprising:
    处理器,用于获取待以波束形式发送的多个连续符号;如果所述多个连续符号中包括用于进行上下行之间转换的转换间隔时,则启动发射器;a processor, configured to acquire a plurality of consecutive symbols to be transmitted in a beam form; if the plurality of consecutive symbols include a transition interval for performing conversion between uplink and downlink, start the transmitter;
    和,发射器,用于向小区内的用户设备发送消息,所述消息用于将基站在所述转换间隔处进行波束切换的信息通知给所述用户设备。And a transmitter, configured to send a message to the user equipment in the cell, where the message is used to notify the user equipment of information that the base station performs beam switching at the transition interval.
  8. 根据权利要求7所述的基站,其特征在于,所述处理器还用于:依次发送所述多个连续符号,且如果当前待发送的符号为所述转换间隔时,则在所述转换间隔所对应的时长内进行波束切换。The base station according to claim 7, wherein the processor is further configured to: sequentially send the plurality of consecutive symbols, and if the currently to-be-transmitted symbol is the transition interval, then at the transition interval Beam switching is performed within the corresponding duration.
  9. 根据权利要求7或8所述的基站,其特征在于,所述转换间隔包括:The base station according to claim 7 or 8, wherein the conversion interval comprises:
    用于上行到下行转换的时间间隔;Time interval for uplink to downlink conversion;
    或者,用于下行到上行转换的保护间隔。Or, a guard interval for downlink to uplink conversion.
  10. 根据权利要求7-9所述的基站,其特征在于,所述处理器还用于:确定所述多个连续符号中的目标符号,所述目标符号所对应的时长为预设的用于进行波束切换的时长;其中,通过如下方式,在所述多个连续符号中设置所述目标符号:基于所述多个连续符号的前后顺序,并按照预设的符号间隔数量,依次确定所述多个连续符号所对应的符号位中,待预留波束切换时间的待定符号位;如果所述多个连续符号中存在所述转换间隔,则从所述待定符号位中确定不与所述转换间隔相邻的目标符号位,并将所述目标符号位设置为所述目标符号;The base station according to any one of claims 7-9, wherein the processor is further configured to: determine a target symbol in the plurality of consecutive symbols, where a duration corresponding to the target symbol is preset for performing The length of the beam switching; wherein the target symbol is set in the plurality of consecutive symbols by: determining the plurality of consecutive symbols based on a sequence of the plurality of consecutive symbols Among the sign bits corresponding to the consecutive symbols, the pending sign bit of the beam switching time to be reserved; if the conversion interval exists in the plurality of consecutive symbols, determining from the pending sign bit that the switching interval is not Adjacent target sign bit and set the target sign bit to the target symbol;
    则所述发射器还用于通过所述消息,将所述基站在所述目标符号所对应的时长内进行波束切换的信息通知给所述用户设备。And the transmitter is further configured to notify, by using the message, the information that the base station performs beam switching within a duration corresponding to the target symbol to the user equipment.
  11. 根据权利要求7-10任一项所述的基站,其特征在于,所述处理器向小区内的用户设备发送消息,包括:通过物理下行控制信道或者高层无线资源控制向所述小区内的用户传输所述消息。 The base station according to any one of claims 7 to 10, wherein the processor sends a message to the user equipment in the cell, including: controlling the user in the cell by using a physical downlink control channel or a high layer radio resource. Transmitting the message.
  12. 根据权利要求7-11任一项所述的基站,其特征在于,所述消息用于将在所述转换间隔之前最近一次发射波束所采用的标识信号,以及在所述转换间隔符号之后最近一次发射波束所采用的标识信号,通知给所述用户设备,其中,所述标识信号包括:公共参考信号、状态信息参考信号或者发现信号中的一项或多于一项。 The base station according to any one of claims 7 to 11, wherein the message is used for an identification signal used for transmitting a beam most recently before the transition interval, and the last time after the transition interval symbol The identification signal used by the transmit beam is notified to the user equipment, wherein the identification signal includes one or more of a common reference signal, a status information reference signal, or a discovery signal.
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