CN111510190A - Beam processing method and base station - Google Patents
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Abstract
The present application relates to the field of mobile communications, and more particularly, to beamforming techniques in a communication system. In a beam processing method, a plurality of continuous symbols to be transmitted in a beam form are acquired, and if the plurality of continuous symbols include a switching interval for switching between uplink and downlink, a message is transmitted to user equipment in a cell, wherein the message is used for notifying the user equipment of information that a base station switches beams at the switching interval. By the scheme provided by the application, the time overhead of beam switching can be reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a beamforming technology in a communication system.
Background
The beamforming technology is a combination of wireless technology and digital signal processing technology, and aims to realize directional transmission signals or directional signal reception.
Because the beam transmitted by the base station adopting the beam forming technology has directivity, only the user equipment in the direction of the transmitted beam can receive the signal transmitted by the base station with higher signal-to-noise ratio. Therefore, in order to enable the base station signal to fully cover all cells of the base station, the base station needs to constantly perform beam switching, i.e., to form beams in different directions by changing the beam transmitting direction. Beamforming techniques include two broad categories, digital beamforming and analog beamforming, with analog beamforming having lower complexity and cost. However, each time of analog beam switching needs to occupy a certain time duration, which results in excessive time overhead of beam switching.
Disclosure of Invention
The application provides a beam processing method and a base station to reduce the overhead of beam switching.
In order to achieve the above purpose, the present application provides the following technical solutions:
in one aspect, the present application provides a beam processing method, including: a base station acquires a plurality of continuous symbols to be transmitted in a beam form; and if the plurality of continuous symbols comprise a switching interval for switching between the uplink and the downlink, sending a message to the user equipment in the cell, wherein the message is used for informing the user equipment of the information that the base station switches the wave beam at the switching interval.
From the above aspect, if a plurality of continuous symbols to be transmitted in the form of analog beams include a switching interval for performing uplink and downlink switching, the time occupied by the switching interval is taken as the time for performing beam switching, and is notified to the user equipment, so that the time for multiplexing the base station to perform uplink and downlink switching is realized to perform beam switching, and thus, the beam switching time does not need to be reserved separately at the switching interval symbol, which is beneficial to reducing the time overhead of beam switching.
In one possible design, after the base station sends the message to the ue in the cell, the base station sequentially sends the multiple continuous symbols, and if the current symbol to be sent is the switching interval, performs beam switching within a duration corresponding to the switching interval. When the base station determines that the current signal to be sent is the switching interval, the base station switches the wave beam in the time length corresponding to the switching interval, and multiplexes the time length corresponding to the switching interval as the time length for switching the wave beam, so that the time for switching the wave beam can be reduced.
In one possible design, the transition interval includes: a time interval for uplink to downlink conversion; or a guard interval for downstream to upstream conversion.
In one possible design, after acquiring a plurality of continuous symbols to be transmitted in an analog beam form, a base station determines a target symbol in the plurality of continuous symbols, wherein a time length corresponding to the target symbol is a preset time length for switching beams; wherein the target symbol is set among the plurality of consecutive symbols by: sequentially determining to-be-determined symbol positions of the beam switching time to be reserved in the symbol positions corresponding to the continuous symbols according to the preset symbol interval quantity based on the front and back sequence of the continuous symbols; if the plurality of continuous symbols have the switching interval, determining a target symbol bit which is not adjacent to the switching interval from the undetermined symbol bits, and setting the target symbol bit as the target symbol, so that the beam switching time does not need to be reserved at the undetermined position point adjacent to the switching interval, and the reserved beam switching time can be reduced; in this way, the message sent to the UE may also be used to inform the user equipment of the information that the base station performs beam switching at the target symbol.
In one possible design, the transmission of the message to users in the cell may be controlled via a physical downlink control channel or a higher layer radio resource.
In one possible design, the message is to inform the user equipment of an identification signal employed by a last transmitted beam before the transition interval and the identification signal employed by the last transmitted beam after the transition interval symbol; wherein the identification signal comprises: one or more of a common reference signal, a status information reference signal, or a discovery signal.
On the other hand, the embodiment of the present invention provides a base station, which has a function of implementing the base station behavior in the above method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.
In one possible design, the base station includes a processor configured to support the base station to perform corresponding functions in the above method; the transmitter is configured to support communication between the base station and the UE, and to send information or instructions related to the method to the UE. The base station may also include a memory, coupled to the processor, that retains program instructions and data necessary for the base station.
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 a first wireless network device, the UE is a second wireless network device, the first wireless network device and the second wireless network device may perform the method provided above, the first wireless network device may include a processor and a transceiver, and the processor is configured to support the first wireless network device to perform corresponding functions in the above method; the transmitter is configured to support communication between the first wireless network device and the second wireless network device, and to send information or instructions involved in the above method to the second wireless network device. The base station may also include a memory, coupled to the processor, that retains program instructions and data necessary for the first wireless network device.
Compared with the prior art, the scheme provided by the invention can reduce the overhead of beam switching.
Drawings
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 introduced below.
Fig. 1 shows an architecture 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 a user equipment in the communication system shown in fig. 1;
fig. 3 is a schematic diagram of hybrid beamforming;
FIG. 4 is a flow chart illustrating an embodiment of a beam processing method according to the present application;
FIG. 5 is a flow diagram illustrating one implementation of the present application for setting a target symbol in a symbol bit corresponding to a plurality of consecutive symbols;
fig. 6 shows a schematic structural diagram of an embodiment of a base station according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
The technical solution of the embodiment of the present application can be applied to various communication networks, such as a Global System for Mobile communications (GSM), a Code Division Multiple Access (CDMA), a Wideband Code Division Multiple Access (WCDMA), a General Packet Radio Service (GPRS), a long Term Evolution (L ong Term Evolution, L TE), a future network, such as a 5G, D2D (device to device) network, an M2M (machine to machine) network, and the like.
The User Equipment (User Equipment, abbreviated as "UE") referred to in this application may also be referred to as a Terminal (Terminal), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, which may communicate with one or more core networks via a Radio Access Network (such as RAN, Radio Access Network), and the User Equipment may be a Mobile Terminal, such as a Mobile phone (or a "cellular" phone) and a computer having the Mobile Terminal, and may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device, which exchanges languages and/or data with the Radio Access Network.
An application scenario of the embodiment of the present invention is described below. Referring to fig. 1, fig. 1 is an architecture diagram of a communication system according to an embodiment of the present disclosure. Specifically, the communication system includes a base station and at least one user equipment (only user equipment 1, user equipment 2, and user equipment 3 are shown in the figure), and the base station and the user equipment communicate with each other through a wireless signal, and the wireless signal is composed of a subframe including a plurality of symbols.
It should be understood that the communication system architecture shown in fig. 1 only shows the case of one base station (isolated base station), but the present application is not limited thereto. The communication system may further include, in addition to the base station, a neighboring base station and user equipment that transmit traffic on the same time-frequency resource, and the coverage area of each base station may further include other numbers of user equipment. Further optionally, 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, which is not limited in this embodiment.
Further, referring to fig. 2a and 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, abbreviated as "TX"), a Receiver (Receiver, abbreviated as "RX") (TX and RX may be collectively referred to as transceiver TRX), and a baseband processing section, wherein the duplexer is used for implementing the antenna array, both for transmitting signals and for receiving signals.
The user equipment may have multiple antennas (i.e., an antenna array), as shown in fig. 2b, and a baseband processing section, as shown in fig. 2b, it should be understood that the user equipment may also have a single antenna, wherein the duplexer enables the antenna array to be used for both transmitting and receiving signals, TX is used for converting between radio frequency signals and baseband signals, generally TX may include a PA, a DAC and a frequency converter, and generally RX may include L NA, an ADC and a frequency converter, the baseband processing section is used for processing transmitted or received signals, such as layer mapping, precoding, modulation/demodulation, coding/decoding, etc., and for processing a physical control Channel, a physical data Channel, a physical broadcast Channel, a reference signal, etc., respectively.
And the base station side and/or the user side utilize the beam forming technology to enhance the coverage by configuring an antenna array. The beamforming of the antenna array includes an analog beam and a mixed beam formed by the antenna array. Further, referring to fig. 3, fig. 3 is a schematic diagram of hybrid beamforming. As shown in fig. 3, the baseband processing part performs general baseband digital signal processing, including CRC check, coding, modulation, scrambling, digital beam forming, etc.; the digital signal after baseband processing is sent to a Radio Frequency (RF) transmission link (only two RF links are shown in the figure, in practical application, one or more RF links may be included), and the RF transmission link completes functions such as up-sampling, transmit-shaping filtering, clipping, analog-to-digital conversion, and the like; the analog signals after the radio frequency processing are sent to a plurality of power amplifiers, phase shifters and antenna units for analog beam forming; the baseband processing part can realize the transmission of signals with certain directivity by controlling the phase of the radio frequency phase shifter. The directivity refers to a propagation directivity of electromagnetic wave energy, and such a signal having directivity synthesized by a plurality of analog phase shifters is called an analog beam. The radio frequency phase shifter is generally implemented by a delay line or a PIN diode, and consumes a certain time when adjusting the phase, so that the influence of the beam switching time needs to be considered when designing the communication protocol.
Because each beam switching needs to occupy a certain time length, in the process of sending a plurality of continuous symbols in the form of analog beams, the switching time of beam switching needs to be reserved once every preset number of symbols, so that the beam switching occupies more time length.
The embodiments of the present application will be described in further detail below based on the common aspects related to the present application described above.
The embodiment of the application provides a beam processing method and a base station based on the method. The base station acquires a plurality of symbols to be transmitted in a beam form, and if a switching interval for switching between uplink and downlink exists in the plurality of symbols, the base station transmits a message to the UE, wherein the message is used for informing the UE of the information of beam switching performed at the switching interval by the base station.
If a plurality of continuous symbols to be transmitted include a conversion interval for performing conversion between uplink and downlink, the time length occupied by the conversion interval is set to be longer because the conversion from downlink to uplink or from uplink to downlink needs to be performed at the conversion interval, and the time length occupied by the conversion interval is longer than the time length required by beam switching. Therefore, when the base station performs downlink-to-uplink or uplink-to-downlink switching at the switching interval, beam switching is performed, so that the beam switching time does not need to be consumed independently, the time occupied by the switching interval is multiplexed to perform beam switching, and the time overhead of beam switching is reduced on the premise of increasing the beam switching times.
The scheme provided by the embodiment of the present application is explained below with reference to fig. 4.
As shown in fig. 4, a beam processing method provided in the embodiment of the present application includes:
a plurality of consecutive symbols to be transmitted in the form of analog beams is acquired 401.
The obtained multiple continuous symbols may be the same as the symbols in the existing analog beam or the hybrid analog beam transmission, and for example, the multiple continuous symbols may be a subframe, which is not described herein again.
And 402, if the plurality of continuous symbols comprise at least one conversion interval for converting between the uplink and the downlink, sending a message to the user equipment in the cell.
Wherein the message is used for notifying the UE of the information that the base station performs the beam switching at the switching interval. The UE in the embodiment of the present application is a UE in a cell covered by the base station.
If the plurality of continuous symbols include a transition interval, it indicates that a frame or a subframe composed of the plurality of continuous symbols simultaneously includes a downlink symbol and an uplink symbol, and the base station needs to perform uplink and downlink transition within a time interval corresponding to the transition interval. The conversion between uplink and downlink may be uplink-to-downlink conversion or downlink-to-uplink conversion.
In the embodiment of the present application, the base station uses the time length for performing the switching between the uplink and the downlink as the reserved beam switching time, that is, determines the time corresponding to the switching interval as the time for performing the beam switching.
In the embodiment of the application, if the plurality of continuous symbols to be transmitted in the analog beam form include the switching interval for switching between the uplink and the downlink, the time corresponding to the switching interval is used as the time for switching the beam and is notified to the UE, so that the time for switching between the uplink and the downlink by the multiplexing base station is used for switching the beam, and thus the beam switching time does not need to be reserved separately at the switching interval, which is beneficial to reducing the beam switching time.
Meanwhile, since the time of multiplexing the switching interval for beam switching does not increase beam overhead, beam switching is performed when the switching interval for switching between uplink and downlink appears in the plurality of continuous symbols, which is also beneficial to increasing the beam switching times on the premise of not increasing the beam switching overhead, so that the abnormal signal reception of the UE, such as slow tracking of the UE, large access delay and the like, caused by the overlarge beam switching period can be reduced.
It can be understood that, after sending a message to the UE in the cell, the base station may send the multiple continuous symbols, and when the symbol to be sent is a transition interval for performing the transition between the uplink and the downlink, the base station performs the transition between the uplink and the downlink within a time duration corresponding to the transition interval; meanwhile, the base station switches the wave beam within the time length corresponding to the switching interval, namely, the phase of the phase shifter is changed, and the output direction of the wave beam is changed.
It is to be understood that the transition interval for performing the transition between the uplink and the downlink may be understood as a time duration for performing the uplink and downlink transition included in the plurality of consecutive symbols. The transition interval may be specifically divided into two types: one is the time interval for the up-to-down 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 a guard interval (GP).
In practical applications, it is possible that the consecutive symbols include only the time interval for uplink-to-downlink conversion, or only the guard interval; of course, there may be a case where a plurality of conversion intervals are included in the consecutive symbols at the same time, and in this case, the plurality of consecutive symbols alternate between the time interval for the down-to-up conversion and the time interval for the up-to-down conversion. However, the base station does not perform beam transmission during uplink communication, and therefore, if beam switching is performed at both of two switching intervals, namely any adjacent downlink-uplink time interval and uplink-downlink time interval, it does not make sense to perform one of the two beam switching because only uplink symbols and no beam transmission of the base station are present in the two beam switching performed at the two switching intervals.
In order to reduce meaningless beam switching, if the plurality of consecutive symbols includes a plurality of switching intervals for switching between uplink and downlink, only the duration of one type of switching interval may be selected and multiplexed as the duration of beam switching. For example, the duration corresponding to the guard interval symbol in the plurality of consecutive symbols may be used as the duration for performing the beam switching.
Considering that the base station performs the beam transmission after performing the uplink-to-downlink switching, a time duration corresponding to the time interval for the uplink-to-downlink switching may be used as the time duration for performing the beam switching, that is, if the plurality of consecutive symbols include the switching interval for the uplink-to-downlink switching, a message for notifying the UE of the information that the base station performs the beam switching at the switching interval for the uplink-to-downlink switching may be sent to the UE.
It should be noted that, in practical applications, when the number of symbols included in a plurality of obtained continuous symbols is large, in addition to a conversion interval for uplink and downlink conversion, a plurality of continuous symbols to be transmitted may further include: and a preset target symbol, wherein the duration corresponding to the target symbol is a preset duration for performing beam switching.
Then, after obtaining the plurality of consecutive symbols, a target symbol of the plurality of consecutive symbols may be determined. Correspondingly, the message sent by the base station to the UE may be used to notify the UE of the information that the base station performs beam switching in the time duration corresponding to the target symbol, in addition to the information that the base station performs beam switching in the switching interval.
It will be appreciated that the specific location and the specific number of target symbols included in the plurality of consecutive symbols may be set as desired by the base station generating the plurality of consecutive symbols. There are various ways to place one or more target symbols in the symbol bits corresponding to the plurality of consecutive symbols.
Optionally, refer to fig. 5, which shows a flowchart of an implementation manner of setting a target symbol in symbol bits corresponding to a plurality of consecutive symbols, where the implementation procedure of this manner may include:
and 501, sequentially determining the to-be-determined symbol positions of the beam switching time to be reserved in the symbol positions corresponding to the continuous symbols according to the preset symbol interval quantity based on the front and back sequence of the continuous symbols.
If there is at least one transition interval in the plurality of consecutive symbols, a target symbol bit that is not adjacent to the transition interval is determined from the pending symbol bits and the target symbol is set at the target symbol bit 502.
Wherein, the time length corresponding to the target symbol is the time length for switching the wave beam.
It can be understood that, when the pending symbol bit is adjacent to the switching interval, the duration corresponding to the switching interval may be directly used as the duration required for beam switching, so that it is not necessary to separately reserve beam switching time at the pending symbol bit, and therefore, the pending symbol bit adjacent to the switching interval is not necessary to be used as a location point for beam switching, but only the pending symbol bit not adjacent to the switching interval and the switching interval are required to be used as the location point for beam switching.
After the target symbol bit is determined as the position point to be subjected to beam switching, the duration corresponding to the target symbol bit is the reserved duration for performing beam switching.
Alternatively, setting the target symbol at the target symbol bit may be understood as placing a blank duration, such as a blank symbol, of a set duration at the target symbol bit, where the set duration may be set according to a duration required for beam switching. After the blank symbol is set at the target symbol position, when the beam switching is subsequently performed, the beam switching can be performed within the set time length corresponding to the blank symbol.
Of course, it may also be identified that the beam switching time is reserved in the target symbol bit in other manners, so that in the process of transmitting the multiple continuous symbols, when the symbol to be transmitted is the target symbol, the symbol is not transmitted in the time duration corresponding to the target symbol, and the beam switching is performed only in the time duration corresponding to the target symbol.
If the symbol bit to be determined of the beam switching time to be reserved is determined from the symbol bits corresponding to the plurality of continuous symbols according to the preset symbol interval and is adjacent to the switching interval in the plurality of continuous symbols, the time corresponding to the switching interval can be directly used as the beam switching time required to be reserved by the point to be positioned, so that the reserved beam switching time is reduced, and the time overhead of beam switching is reduced.
It should be noted that, in the embodiment of the present application, the conversion interval may be all conversion intervals used for performing conversion between uplink and downlink, or may be only a conversion interval used for converting from downlink to uplink; or only GP.
In any of the above embodiments, after notifying the UE of the information of beam switching at the target symbol and at the transition interval, the base station may transmit to a plurality of consecutive symbols in the form of analog beams. 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, the phase of the phase shifter is controlled to be changed to implement beam direction switching.
It is to be appreciated that in any of the above embodiments, the base station may inform the UE of the information of the beam switching at the transition interval in the plurality of consecutive symbols in various ways. Alternatively, the base station may send the message to the UE implicitly or explicitly, dynamically or semi-dynamically. The message may be used to send analog beam information to the UE before and after the transition interval, the analog beam information including analog beam identifiers used to distinguish between different analog beams. Of course, the manner in which the base station notifies the UE of the information about the beam switching at the target symbol may be by implicitly or explicitly, dynamically or semi-dynamically sending a message to the UE.
The analog beam information may be carried by a designated 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 of 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 using the beam identifiers, different analog beam identifiers correspond to different common reference signals, that is, the common reference signals correspond to the analog beam identifiers one to one.
Specifically, when the message is used to notify the UE of the information about beam switching performed by the base station at the switching interval, the CRS used for transmitting the beam last time before the switching interval may be notified to the UE, and of course, the CRS used for transmitting the beam last time after the switching interval may also be notified to the UE. That is, the CRS corresponding to each of the plurality of symbol segments divided by the transition interval among the plurality of consecutive symbols is notified to the UE. Wherein the plurality of symbol segments are transmitted using beams of different transmit directions.
When the message is used to notify the UE of the information about beam switching performed by the base station at the target symbol and the transition interval, the message may carry the common reference signal corresponding to the multiple target symbol segments in the multiple consecutive symbols. The target symbol segment is a plurality of symbol segments which are cut by a preset target symbol and the conversion interval in the plurality of continuous symbols.
When the message is used to notify the UE of the information about beam switching performed by the base station at the target symbol, the CRS used by the last previous beam transmission at the target symbol may be notified to the UE; and/or notifying the CRS adopted by the beam transmitted last time after the target symbol to the UE.
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 one or more of a Channel-State Information-Reference Signal (CSI-RS) or a Discovery Signal (Discovery Reference Signal) to the UE. Wherein the discovery signal may include at least one or more of a CRS, a CSI-RS, and primary and secondary synchronization signals.
It can be understood that, after the base station sends the UE the information that the base station performs the beam switching at the switching interval or the target symbol by sending a message to the UE, the UE can determine the beam switching 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 while sending the message, and the UE may determine the time period of the analog beam that can be received by combining the determined beam switching condition and the time at which the beam changes, so that the UE may set the UE to the sleep state as needed in the time period in which the UE does not need to receive the analog beam.
Of course, the UE may perform other processing based on the message sent by the base station.
For example, for the case that the CRS is included in the message, the UE may determine the signal quality of the cell by measuring the CRS. In the CRS measuring process, the CRS signal intensity of a plurality of subframes or even a plurality of frames can be continuously measured, the average signal intensity of the measured CRS is calculated, and then the average signal intensity of the CRS is reported to the base station. Thus, when the simulated wave beams are adopted to send CRS signals, the UE needs to distinguish the measured CRS signal intensities corresponding to different simulated wave beams, count the CRS intensity of the simulated wave beams in the wave beam transmitting direction of the UE and report the CRS intensity to the base station; if the UE does not know that the beam transmission directions before and after the switching interval in the plurality of characters are different, the UE calculates the average signal intensity of the CRS by using the analog beams in the different transmission directions before and after the switching interval as the same analog beam, thereby causing an error in the average signal intensity of the CRS reported to the base station.
It can be understood that the form of the message sent by the base station may also be in various forms, for example, the message may be a signaling that is dynamically transmitted through a Physical Downlink Control Channel (PDCCH); as another example, the message may be signaling transmitted through the higher layer Radio Resource Control (RRC).
The present application further provides an apparatus, which may be a base station, and the base station may implement the operations performed by the base station side according to the foregoing embodiments.
Fig. 6 is a schematic diagram showing a structure of the base station. The base station may include: a processor 601 and a transmitter 602.
The processor 601 is configured to obtain a plurality of consecutive symbols to be transmitted in a beam; the transmitter 601 is activated if a transition interval for switching between uplink and downlink is included in the plurality of consecutive symbols.
A transmitter 602, configured to send a message to a user equipment in a cell, and support radio communication between the UE and other UEs, where the message is used to notify the user equipment of information that a base station performs beam switching at the switching interval.
It will be appreciated that fig. 6 only shows a simplified design of a base station. In practical applications, the base station may comprise any number of transceivers (which may also 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.
Optionally, the processor is further configured to: and sequentially sending the continuous symbols, and if the current symbol to be sent is the switching interval, carrying out beam switching in the time length corresponding to the switching interval.
Optionally, the transition interval includes:
a time interval for uplink to downlink conversion;
or a guard interval for downstream to upstream conversion.
Optionally, the processor is further configured to: determining a target symbol in the plurality of continuous symbols, wherein the time length corresponding to the target symbol is a preset time length for switching the wave beam; wherein the target symbol is set among the plurality of consecutive symbols by: sequentially determining the to-be-determined symbol positions of the beam switching time to be reserved in the symbol positions corresponding to the continuous symbols according to the preset symbol interval quantity based on the front and back sequence of the continuous symbols; determining a target symbol bit that is not adjacent to the transition interval from the pending symbol bits if the transition interval exists in the plurality of consecutive symbols, and setting the target symbol bit to the target symbol;
the message sent by the transmitter is also used to inform the user equipment of the information of beam switching by the base station at the target symbol.
Optionally, the sending, by the processor, a message to the user equipment in the cell includes:
and transmitting the message to the users in the cell through physical downlink control channel or high-level radio resource control.
Optionally, the message is configured to notify the user equipment of an identification signal used by a beam transmitted last time before the transition interval and the identification signal used by the beam transmitted last time after the transition interval symbol, where the identification signal may include: one or more of a common reference signal, a status information reference signal, or a discovery signal.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. The present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of beam processing, comprising:
acquiring a plurality of continuous symbols to be transmitted in a beam form;
and if the plurality of continuous symbols comprise a switching interval for switching between uplink and downlink, sending a message to user equipment in a cell, wherein the message is used for notifying the user equipment of the information that the base station switches the wave beam at the switching interval.
2. The method of claim 1, further comprising, after the sending the message to the user equipment in the cell:
and sequentially sending the continuous symbols, and if the current symbol to be sent is the switching interval, carrying out beam switching in the time length corresponding to the switching interval.
3. The method of claim 1 or 2, wherein the transition interval comprises:
a time interval for uplink to downlink conversion;
or a guard interval for downstream to upstream conversion.
4. The method of any one of claims 1-3, wherein after the obtaining the plurality of consecutive symbols to be transmitted in the beam, further comprising:
determining a target symbol in the plurality of continuous symbols, wherein the time length corresponding to the target symbol is a preset time length for switching the wave beam;
the message is further used for notifying the user equipment of the information that the base station performs beam switching within the time length corresponding to the target symbol;
wherein the target symbol is set among the plurality of consecutive symbols by:
sequentially determining the to-be-determined symbol positions of the beam switching time to be reserved in the symbol positions corresponding to the continuous symbols according to the preset symbol interval quantity based on the front and back sequence of the continuous symbols;
if the transition interval exists in the plurality of continuous symbols, determining a target symbol bit which is not adjacent to the transition interval from the pending symbol bits, and setting the target symbol bit as the target symbol.
5. The method according to any of claims 1-4, wherein said sending a message to user equipments within a cell comprises:
and transmitting the message to the users in the cell through physical downlink control channel or high-level radio resource control.
6. The method according to any of claims 1-5, wherein the message is used to inform the user equipment of an identification signal used by a last transmission beam before the transition interval and the identification signal used by a last transmission beam after the transition interval symbol, wherein the identification signals comprise: one or more of a common reference signal, a status information reference signal, or a discovery signal.
7. A base station, comprising:
a processor for obtaining a plurality of consecutive symbols to be transmitted in a beam; if the plurality of continuous symbols comprise a conversion interval for converting between an uplink and a downlink, starting a transmitter;
and the transmitter is used for sending a message to the user equipment in the cell, wherein the message is used for informing the user equipment of the information that the base station carries out the beam switching at the switching interval.
8. The base station of claim 7, wherein the processor is further configured to: and sequentially sending the continuous symbols, and if the current symbol to be sent is the switching interval, carrying out beam switching in the time length corresponding to the switching interval.
9. The base station of claim 7 or 8, wherein the transition interval comprises:
a time interval for uplink to downlink conversion;
or a guard interval for downstream to upstream conversion.
10. The base station of claims 7-9, wherein the processor is further configured to: determining a target symbol in the plurality of continuous symbols, wherein the time length corresponding to the target symbol is a preset time length for switching the wave beam; wherein the target symbol is set among the plurality of consecutive symbols by: sequentially determining the to-be-determined symbol positions of the beam switching time to be reserved in the symbol positions corresponding to the continuous symbols according to the preset symbol interval quantity based on the front and back sequence of the continuous symbols; determining a target symbol bit that is not adjacent to the transition interval from the pending symbol bits if the transition interval exists in the plurality of consecutive symbols, and setting the target symbol bit to the target symbol;
the transmitter is further configured to notify the ue of the information that the base station performs beam switching within the duration corresponding to the target symbol through the message.
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| CN202010200080.0A CN111510190B (en) | 2015-11-24 | 2015-11-24 | Beam processing method and device |
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| WO2019028734A1 (en) | 2017-08-10 | 2019-02-14 | Mediatek Singapore Pte. Ltd. | Apparatus and mechanism to perform beam management and beam failure recovery in nr system |
| US11088750B2 (en) * | 2018-02-16 | 2021-08-10 | Qualcomm Incorporated | Feedback of beam switch time capability |
| CN111615195B (en) * | 2019-04-08 | 2023-08-25 | 维沃移动通信有限公司 | Method and device for determining beam information and communication equipment |
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| CN111510190B (en) | 2024-04-12 |
| CN106792776B (en) | 2020-04-03 |
| WO2017088791A1 (en) | 2017-06-01 |
| CN106792776A (en) | 2017-05-31 |
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