CN107888243A - A kind of wave beam training method, terminal and base station - Google Patents
A kind of wave beam training method, terminal and base station Download PDFInfo
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- CN107888243A CN107888243A CN201610875307.5A CN201610875307A CN107888243A CN 107888243 A CN107888243 A CN 107888243A CN 201610875307 A CN201610875307 A CN 201610875307A CN 107888243 A CN107888243 A CN 107888243A
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- downlink reception
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The present invention provides a kind of wave beam training method, terminal and base station, solves in existing wave beam training method, and terminal is required to re-search for receive wave beam accordingly for every grade of wave beam training signal that base station is sent, and adds the duration and complexity of wave beam training.The method of the present invention includes：The the first wave beam training signal sent according to base station, determine downlink reception wave beam corresponding to the first descending descending transmission wave beam sent in beam set；The configuration information of the second wave beam training signal sent according to descending transmission wave beam with the corresponding relation of downlink reception wave beam and base station, determine the downlink reception wave beam of the second wave beam training signal, configuration information is used for the relevant information for indicating the training signal that the second wave beam training signal sends wave beam with base station down, and base station down sends wave beam and belongs to the first descending transmission beam set；The second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal, it is determined that optimal downlink reception wave beam or descending transmission wave beam.
Description
Technical field
The present invention relates to the technical field of communications applications, particularly relates to a kind of wave beam training method, terminal and base station.
Background technology
In view of MIMO (Multiple-Input Multiple-Output, multiple-input and multiple-output) technologies are for improving peak value
The important function of speed and system spectrum utilization rate, LTE (Long Term Evolution, Long Term Evolution)/LTE-A (LTE-
Advanced, enhanced Long Term Evolution) etc. wireless access technology standard be all with MIMO+OFDM (Orthogonal
Frequency Division Multiplexing, OFDM) construct based on technology.MIMO technology
Performance gain comes from multiaerial system and can be obtained spatial degrees of freedom, therefore MIMO technology is during Standardization Development
One most important evolution tendency is the extension of dimension.
In LTE Rel-8,4 layers of MIMO transmission can be at most supported.Rel-9 emphasis is to MU-MIMO (Multi-User
MIMO, multi-user's multiple-input and multiple-output) technology strengthened, TM (Transmission Mode, transmission mode) -8 MU-
4 downlink data layers can be at most supported in MIMO transmission.Rel-10, which is then introduced, supports 8 antenna ports to further increase channel
The spatial resolution of status information, and further by SU-MIMO's (Single-User MIMO, single user multiple-input and multiple-output)
Transmittability extends to most 8 data Layers.Rel-13 and Rel-14 introduces FD-MIMO technical supports to 32 ports, realizes
The wave beam forming of full dimension and vertical direction.
In order to further lift MIMO technology, extensive antenna technology is introduced in GSM.For base station, totally
The extensive antenna of word can have up to 128/256/512 antenna oscillator, and up to 128/256/512 transmitting-receiving letter
Machine, each antenna oscillator connect a transceiver.The pilot signal of 128/256/512 antenna port is up to by sending,
So that terminal measure channel state information and feeding back.For terminal, the antenna array of 32/64 antenna oscillator can also be configured up to
Row.By the wave beam forming of base station and terminal both sides, huge beam forming gain is obtained, to make up the letter that path loss is brought
Number decay.Especially communicated in high band, such as on 30GHz frequencies, path loss causes the coverage of wireless signal extremely
It is limited.By extensive antenna technology, the coverage of wireless signal can be expanded to can be practical scope in.
Full digital antenna array, each antenna oscillator have independent transceiver, it will so that the size of equipment, cost
Significantly rise with power consumption.Especially for the analog-digital converter (ADC) and digital analog converter (DAC) of transceiver, power consumption drop
Low and performance boost is all than relatively limited.In order to reduce the size of equipment, cost and power consumption, the technical side based on analog beam figuration
Case is suggested.As depicted in figs. 1 and 2.Analog beam figuration is mainly characterized by believing intermediate frequency (Fig. 1) or radio frequency by phase shifter
Number (Fig. 2) is weighted figuration.
In order to further lift simulation wave beam forming performance, a kind of digital analog mixed wave beam forming transmit-receive structure scheme quilt
It is proposed, as shown in Figure 3.In figure 3, transmitting terminal and receiving terminal have respectivelyWithIndividual transceiver, transmitting terminal antenna oscillator
NumberReceiving terminal antenna oscillator numberWave beam forming support maximum parallel transmission stream quantity beFig. 3 mixed-beam figuration structure is in digital beam forming flexibility and the low complex degree of analog beam figuration
Between balance.
Analog beam figuration and digital-to-analogue mixed-beam figuration are required for adjusting the analog beam shape-endowing weight value of transmitting-receiving two-end, with
Its wave beam formed is enabled to be directed at the opposite end of communication.The weights of wave beam forming are generally obtained by sending training signal.But
In existing wave beam training method, terminal is required to re-search for receive accordingly for every grade of wave beam training signal that base station is sent
Wave beam, considerably increase the duration and complexity of wave beam training.
The content of the invention
It is an object of the invention to provide a kind of wave beam training method, terminal and base station, to solve existing wave beam training
In method, terminal is required to re-search for receive wave beam accordingly for every grade of wave beam training signal that base station is sent, and increases greatly
The problem of having added the duration and complexity that wave beam is trained.
To achieve these goals, the invention provides a kind of wave beam training method, applied to terminal, including：
The the first wave beam training signal sent according to base station, determine the first descending descending send wave sent in beam set
Downlink reception wave beam corresponding to beam；
Instructed according to the second wave beam that the descending corresponding relation for sending wave beam and downlink reception wave beam and base station are sent
Practice the configuration information of signal, determine the downlink reception wave beam of the second wave beam training signal, the configuration information is used to indicating described
Second wave beam training signal sends the relevant information of the training signal of wave beam with base station down, and the base station down sends wave beam category
In the described first descending transmission beam set；
The second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal, and is determined
Optimal descending transmission wave beam or optimal downlink reception wave beam.
Wherein, it is described sent according to the descending corresponding relation for sending wave beam and downlink reception wave beam and base station the
The configuration information of two wave beam training signals, include the step of the downlink reception wave beam for determining the second wave beam training signal：
According to base station send the second wave beam training signal configuration information, it is determined that with the second wave beam training signal phase
The base station down of pass sends wave beam；
According to the descending corresponding relation for sending wave beam and downlink reception wave beam, it is determined that with the base station down send wave
First downlink reception wave beam corresponding to beam；
According to the first downlink reception wave beam, the downlink reception wave beam of the second wave beam training signal is determined.
Wherein, it is described according to the first downlink reception wave beam, determine the downlink reception of the second wave beam training signal
The step of wave beam, includes：
By the first downlink reception wave beam, the downlink reception wave beam as the second wave beam training signal；Or
The construction downlink reception beam set related to the first downlink reception wave beam, and by the downlink reception wave beam
Gather the downlink reception wave beam as the second wave beam training signal.
Wherein, the space of the downlink reception wave beam in the downlink reception beam set and the first downlink reception wave beam
Downlink reception wave beam and described first of the correlation more than the first predetermined threshold value or in the downlink reception beam set are descending
The differential seat angle for receiving the space sensing of wave beam is in the first preset range.
Wherein, the configuration information is used to indicate that the second wave beam training signal sends wave beam with the base station down
The quasi- colocation site QCL information of training signal.
Wherein, the second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal,
And the step of determining optimal downlink reception wave beam, includes：
In the downlink reception wave beam of the second wave beam training signal, the most strong downlink reception of received signal power is selected
Wave beam is optimal downlink reception wave beam.
Wherein, the second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal,
And the step of determining optimal descending transmission wave beam, includes：
In the descending transmission wave beam of the second wave beam training signal, the most strong downlink reception of received signal power is selected
Wave beam is optimal descending transmission wave beam.
In order to solve the above technical problems, embodiments of the invention additionally provide a kind of terminal, including：
First determining module, for the first wave beam training signal sent according to base station, determine the first descending transmission wave beam
Downlink reception wave beam corresponding to descending transmission wave beam in set；
Second determining module, for according to the descending corresponding relation for sending wave beam and downlink reception wave beam and base station
The configuration information of the second wave beam training signal sent, determine the downlink reception wave beam of the second wave beam training signal, the configuration
Information is used for the relevant information for indicating the training signal that the second wave beam training signal sends wave beam with base station down, the base
Descending transmission wave beam of standing belongs to the described first descending transmission beam set；
3rd determining module, for receiving second ripple using the downlink reception wave beam of the second wave beam training signal
Beam training signal, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
Wherein, second determining module includes：
First determination sub-module, for the configuration information of the second wave beam training signal sent according to base station, it is determined that and institute
State the related base station down of the second wave beam training signal and send wave beam；
Second determination sub-module, for the corresponding relation according to the descending transmission wave beam and downlink reception wave beam, it is determined that
The first downlink reception wave beam corresponding with base station down transmission wave beam；
3rd determination sub-module, according to the first downlink reception wave beam, determine under the second wave beam training signal
Row receives wave beam.
Wherein, the 3rd determination sub-module is used to, by the first downlink reception wave beam, instruct as second wave beam
Practice the downlink reception wave beam of signal；Or
The construction downlink reception beam set related to the first downlink reception wave beam, and by the downlink reception wave beam
Gather the downlink reception wave beam as the second wave beam training signal.
Wherein, the space of the downlink reception wave beam in the downlink reception beam set and the first downlink reception wave beam
Downlink reception wave beam and described first of the correlation more than the first predetermined threshold value or in the downlink reception beam set are descending
The differential seat angle for receiving the space sensing of wave beam is in the first preset range.
Wherein, the configuration information is used to indicate that the second wave beam training signal sends wave beam with the base station down
The quasi- colocation site QCL information of training signal.
Wherein, the 3rd determining module is used in the downlink reception wave beam of the second wave beam training signal, selection
The most strong downlink reception wave beam of received signal power is optimal downlink reception wave beam.
Wherein, the 3rd determining module is used in the descending transmission wave beam of the second wave beam training signal, selection
The most strong downlink reception wave beam of received signal power is optimal descending transmission wave beam.
In order to solve the above technical problems, embodiments of the invention additionally provide a kind of wave beam training method, applied to base station,
Including：
Send the first wave beam training signal to terminal, and receiving terminal sent according to the first wave beam training signal the
One recommends beam information, and the first wave beam training signal is that the first descending descending transmission wave beam sent in beam set is corresponding
Training signal；
The configuration information of the second wave beam training signal is sent to terminal, the configuration information is used to indicate second wave beam
Training signal and base station down send the relevant information of the training signal of wave beam, and the base station down sends wave beam and belongs to described the
One descending send wave constriction closes；
The second wave beam training signal is sent to the terminal.
Wherein, the step of sending the first wave beam training signal to terminal includes：
The first descending transmission beam set is determined, the described first descending beam set that sends includes multiple descending send waves
Beam, each descending corresponding one group of beam shape-endowing weight value of transmission wave beam；
Descending transmission wave beam in described first descending transmission beam set is carried out according to corresponding wave beam forming value
After figuration, obtain the first wave beam training signal and be sent to terminal.
Wherein, the step of sending the second wave beam training signal to terminal includes：
In the first descending descending send wave Shu Zuowei base station downs transmission wave beam of selection one in sending beam set；
Construct the second descending transmission beam set related to base station down transmission wave beam；
Descending transmission wave beam in described second descending transmission beam set is carried out according to default wave beam forming value
After figuration, obtain the second wave beam training signal and be sent to terminal.
Wherein, a descending send wave Shu Zuowei base station downs are chosen in the first descending transmission beam set and sends wave beam
Step includes：
Recommend beam information according to described first, in the described first descending one descending send wave of selection in sending beam set
Base station down described in Shu Zuowei sends wave beam.
Wherein, the described second descending descending transmission wave beam sent in beam set sends the space of wave beam with base station down
Correlation is higher than the second predetermined threshold value, or second descending descending the transmission wave beam and base station down sent in beam set
The differential seat angle for sending the space sensing of wave beam is in the second preset range.
Wherein, the configuration information is used to indicate that the second wave beam training signal sends wave beam with the base station down
The quasi- colocation site QCL information of training signal.
In order to solve the above technical problems, embodiments of the invention additionally provide a kind of base station, including：
First transceiver module, for sending the first wave beam training signal to terminal, and receiving terminal is according to the first wave
The first recommendation beam information that beam training signal is sent, the first wave beam training signal are in the first descending transmission beam set
Descending transmission wave beam corresponding to training signal；
Second transceiver module, for sending the configuration information of the second wave beam training signal to terminal, the configuration information is used
In the relevant information for indicating the second wave beam training signal and the training signal of base station down transmission wave beam, the base station down
Send wave beam and belong to the described first descending transmission beam set；
3rd transceiver module, for sending the second wave beam training signal to the terminal.
Wherein, first transceiver module includes：
4th determination sub-module, for determining the first descending transmission beam set, the first descending transmission beam set
Including multiple descending transmission wave beams, each descending corresponding one group of beam shape-endowing weight value of transmission wave beam；
First sending submodule, for by the described first descending descending transmission wave beam sent in beam set according to corresponding
Wave beam forming value carry out figuration after, obtain the first wave beam training signal and be sent to terminal.
Wherein, the 3rd transceiver module includes：
Submodule is chosen, in the first descending one descending send wave Shu Zuowei base station downs of selection in sending beam set
Send wave beam；
Submodule is constructed, for constructing the second descending transmission beam set related to base station down transmission wave beam；
Second sending submodule, for by the described second descending descending transmission wave beam sent in beam set according to default
Wave beam forming value carry out figuration after, obtain the second wave beam training signal and be sent to terminal.
Wherein, the selection submodule is used to recommend beam information according to described first, in the described first descending send wave
Constriction chooses base station down described in a descending send wave Shu Zuowei and sends wave beam in closing.
Wherein, the described second descending descending transmission wave beam sent in beam set sends the space of wave beam with base station down
Correlation is higher than the second predetermined threshold value, or second descending descending the transmission wave beam and base station down sent in beam set
The differential seat angle for sending the space sensing of wave beam is in the second preset range.
Wherein, the configuration information is used to indicate that the second wave beam training signal sends wave beam with the base station down
The quasi- colocation site QCL information of training signal.
The embodiment of the present invention has the advantages that：
The above-mentioned technical proposal of the embodiment of the present invention, the first wave beam training signal sent according to base station, is determined under first
Downlink reception wave beam corresponding to descending transmission wave beam in row transmission beam set；According to descending transmission wave beam and downlink reception ripple
The configuration information for the second wave beam training signal that the corresponding relation of beam and base station are sent, is determined under the second wave beam training signal
Row receives wave beam, and configuration information is used to indicate that the second wave beam training signal is related to the training signal of base station down transmission wave beam
Information, base station down send wave beam and belong to the described first descending transmission beam set；Utilize the descending of the second wave beam training signal
Receive wave beam and receive the second wave beam training signal, and determine optimal downlink reception wave beam or optimal descending transmission wave beam.This hair
According to the configuration information of the second wave beam training signal in bright embodiment, the downlink reception wave beam of the second wave beam training signal is determined,
The second wave beam training signal is received using each downlink reception wave beam without terminal, terminal searching is accelerated and receives wave beam
Process, reduce wave beam training needed for time and complexity.
Brief description of the drawings
Fig. 1 is the schematic diagram for being weighted figuration in existing analog beam figuration to intermediate-freuqncy signal；
Fig. 2 is the schematic diagram for being weighted figuration in existing analog beam figuration to radiofrequency signal；
Fig. 3 is existing numerical model analysis wave beam forming schematic diagram；
Fig. 4 is the first workflow diagram of the wave beam training method of the embodiment of the present invention；
Fig. 5 is the second workflow diagram of the wave beam training method of the embodiment of the present invention；
Fig. 6 is the interaction diagrams of base station and terminal in the embodiment of the present invention；
Fig. 7 is the first structure block diagram of the terminal of the embodiment of the present invention；
Fig. 8 is the 3rd workflow diagram of the wave beam training method of the embodiment of the present invention；
Fig. 9 is the first structure block diagram of the base station of the embodiment of the present invention；
Figure 10 is the second structured flowchart of the base station of the embodiment of the present invention；
Figure 11 is the second structured flowchart of the terminal of the embodiment of the present invention.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with specific implementation
Example and accompanying drawing are described in detail.
The embodiment provides a kind of wave beam training method, terminal and base station, solves existing wave beam training side
In method, terminal is required to re-search for receive wave beam accordingly for every grade of wave beam training signal that base station is sent, and greatly increases
The problem of duration and complexity of wave beam training.
First embodiment
As shown in figure 4, the wave beam training method of the embodiment of the present invention, applied to terminal, including：
Step 401：The the first wave beam training signal sent according to base station, under determining in the first descending transmission beam set
Row sends downlink reception wave beam corresponding to wave beam.
Here the first wave beam training signal may include that the first descending send in beam set is trained corresponding to each wave beam
Signal, for example, the first descending beam set that sends includes N1Individual descending transmission wave beam, base station can send N1Individual training signal,
N1Can be that TDM, FDM, CDM are multiplexed between individual training signal, or the combination of various multiplex modes.
The first wave beam training signal that terminal is sent according to base station, determine first it is descending send beam set in part or
Downlink reception wave beam corresponding to whole descending transmission wave beams.
Specifically, terminal receives above-mentioned first wave beam training signal, the first wave beam training signal is measured, selection pushes away
The descending transmission wave beam (first recommends wave beam) recommended, and recommend downlink reception wave beam corresponding to wave beam determination for each first,
Or a corresponding downlink reception wave beam is determined for the first descending each descending transmission wave beam sent in beam set,
Preserve the first descending each descending corresponding relation for sending wave beam and downlink reception wave beam sent in beam set.
Terminal can be attempted to connect the training signal of descending transmission wave beam using the reception wave beam of each candidate respectively
Receive, and select the most strong reception wave beam of received signal power as the descending reception wave beam for sending wave beam.
Step 402：The sent according to the descending corresponding relation for sending wave beam and downlink reception wave beam and base station
The configuration information of two wave beam training signals, determines the downlink reception wave beam of the second wave beam training signal, and the configuration information is used for
Indicate that the second wave beam training signal sends the relevant information of the training signal of wave beam, the base station down hair with base station down
Wave beam is sent to belong to the described first descending transmission beam set.
In a particular embodiment of the present invention, above-mentioned second wave beam training signal is included in the second descending transmission beam set
Training signal corresponding to each wave beam.The second descending beam set that sends is first from the first descending transmission beam set by base station
It is middle to choose a descending wave beam that sends as base station down transmission wave beam；Construct second related to base station down transmission wave beam
Descending transmission beam set；By the described second descending descending transmission wave beam sent in beam set according to default wave beam forming
After value carries out figuration, obtain the second wave beam training signal and be sent to terminal.
Further, above-mentioned configuration information can be sent out particularly for the second wave beam training signal is indicated with base station down
Send the QCL information of the training signal of wave beam.The embodiment of the present invention, according between multiple wave beam training signals of base station instruction
QCL information, the process that terminal searching receives wave beam is accelerated, reduces complexity.
Step 403：The second wave beam training letter is received using the downlink reception wave beam of the second wave beam training signal
Number, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
Specifically, in the downlink reception wave beam of the second wave beam training signal received signal power can be selected most strong
Downlink reception wave beam be optimal downlink reception wave beam；In the descending transmission wave beam of the second wave beam training signal, selection
The most strong downlink reception wave beam of received signal power is optimal descending transmission wave beam.
The wave beam training method of the embodiment of the present invention, the first wave beam training signal sent according to base station, is determined under first
Downlink reception wave beam corresponding to descending transmission wave beam in row transmission beam set；According to descending transmission wave beam and downlink reception ripple
The configuration information for the second wave beam training signal that the corresponding relation of beam and base station are sent, is determined under the second wave beam training signal
Row receives wave beam, and configuration information is used to indicate that the second wave beam training signal is related to the training signal of base station down transmission wave beam
Information, base station down send wave beam and belong to the described first descending transmission beam set；Utilize the descending of the second wave beam training signal
Receive wave beam and receive the second wave beam training signal, and determine optimal downlink reception wave beam or optimal descending transmission wave beam.This hair
According to the configuration information of the second wave beam training signal in bright embodiment, the downlink reception wave beam of the second wave beam training signal is determined,
The second wave beam training signal is received using each downlink reception wave beam without terminal, terminal searching is accelerated and receives wave beam
Process, reduce wave beam training needed for time and complexity.
Second embodiment
As shown in figure 5, the wave beam training method of the embodiment of the present invention, applied to terminal, including：
Step 501：The the first wave beam training signal sent according to base station, under determining in the first descending transmission beam set
Row sends downlink reception wave beam corresponding to wave beam.
The step is identical with above-mentioned steps 401, is not repeating herein.
Step 502：The configuration information of the second wave beam training signal sent according to base station, it is determined that being instructed with second wave beam
Practice the related base station down of signal and send wave beam.
Specifically, determine that the base station down related to the second wave beam training signal sends wave beam according to above-mentioned configuration information
Training signal, the training signal that wave beam is sent according to base station down determine that base station down sends wave beam.
From the foregoing, it will be observed that the configuration information is used to indicate the second wave beam training signal and the described first descending transmission wave beam
Base station down sends the relevant information of the training signal of wave beam, such as the second wave beam training signal and the described first descending hair in set
The QCL information of the training signal of base station down transmission wave beam in beam set is sent, the configuration information that terminal is sent according to base station can
It is determined that the base station down related to the second wave beam training signal sends wave beam.
Step 503：According to the descending corresponding relation for sending wave beam and downlink reception wave beam, it is determined that with the base station
Row sends the first downlink reception wave beam corresponding to wave beam.
Step 504：According to the first downlink reception wave beam, the downlink reception ripple of the second wave beam training signal is determined
Beam.
Specifically, using the first downlink reception wave beam as the downlink reception wave beam of the second wave beam training signal；
Or the construction downlink reception beam set related to the first downlink reception wave beam, and by the downlink reception beam set
Downlink reception wave beam as the second wave beam training signal.
The space correlation of downlink reception wave beam and the first downlink reception wave beam in the downlink reception beam set
Property be more than downlink reception wave beam and first downlink reception in the first predetermined threshold value or the downlink reception beam set
The differential seat angle that the space of wave beam is pointed to is in the first preset range.
Step 505：The second wave beam training letter is received using the downlink reception wave beam of the second wave beam training signal
Number, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
The step is identical with above-mentioned steps 403, and here is omitted.
The method of the wave beam training of the embodiment of the present invention, the configuration information sent according to base station, above-mentioned first descending is connect
Receive wave beam or trained the downlink reception beam set related to the first downlink reception wave beam as second wave beam
The downlink reception wave beam of signal, on the premise of training precision is ensured, the process that terminal searching receives wave beam is accelerated, is reduced
The duration and training complexity of wave beam training.
3rd embodiment
The workflow of base station and terminal in the embodiment of the present invention is illustrated with reference to Fig. 6.
As shown in fig. 6, above-mentioned workflow includes：
Step 601：Base station determines the first descending transmission beam set.
Base station determines the first descending transmission beam set (abbreviation first set), it is assumed that N is shared in first set1It is individual descending
Wave beam, the corresponding one group of beam shape-endowing weight value of each downlink wave beam are sent, the transmission beam shape-endowing weight value of n-th of wave beam isWherein K is the antenna oscillator number of wave beam forming, can be less than the antenna oscillator number of base station.And the
All wave beams during one descending send wave constriction closes can the region that is covered of coverage base station.
Step 602：Base station sends the first wave beam training signal.
Base station can be each descending transmission one wave beam training signal of beam transmission in first set.For N1It is individual descending
Wave beam is sent, base station can send N1Individual training signal.The N1Can be TDM, FDM, CDM multiplexing between individual training signal, or
The combination of various multiplex modes.For example, in the system based on OFDM, N1Individual training signal can take N1Individual OFDM symbols
Number, each training signal takes 1 OFDM symbol, is multiplexed between training signal for TDM.It can also be sent out in an OFDM symbol
The training signal of multiple wave beams is penetrated, is multiplexed between training signal for FDM, or CDM multiplexings.
Assuming that the signal to be sent on a resource unit is s, it is with the signal after n-th of wave beam forming then：
Y=[y1 y2 … yK]T=Wns
Wherein, ykIt will be mapped on antenna oscillator k and send.
In addition, above-mentioned first wave beam training signal can be periodically to send, with that can be that aperiodicity is sent.
Step 603：Terminal-pair the first wave beam training signal measures, and selects first to recommend wave beam and recommends ripple by first
Beam relevant information reports base station, and determines downlink reception corresponding to the first descending descending transmission wave beam sent in beam set
Wave beam.
Terminal receives the first training signal that base station is sent, and by the measurement to the first training signal, selects under recommending
Row sends wave beam (first recommends wave beam).For example, terminal can select the most strong wave beam of training signal receiving power to recommend ripple
Beam.First recommendation wave beam is a wave beam or multiple wave beams.
Terminal receives above-mentioned first wave beam training signal, and the first wave beam training signal is measured, and selects under recommending
Go and send wave beam (first recommends wave beam), and recommend downlink reception wave beam corresponding to wave beam determination, Huo Zhezhen for each first
The each descending transmission wave beam sent in beam set descending to first determines a corresponding downlink reception wave beam, preserves the
Each descending corresponding relation for sending wave beam and downlink reception wave beam in one descending send wave constriction conjunction.The reception wave beam of terminal
Can select to obtain from the reception wave beam of candidate.Terminal sharesIndividual reception wave beam, it is each to receive the corresponding one group of ripple of wave beam
Beam shape-endowing weight value, the reception beam shape-endowing weight value of n-th of wave beam areWherein L is the day of wave beam forming
Linear oscillator number, the antenna oscillator number of terminal can be less than.It is whole for a downlink wave beam training signal (or other signals)
End can attempt to receive it using each wave beam that receives respectively, select the most strong reception wave beam conduct of received signal power
The descending reception wave beam for sending wave beam.
The relevant information of first recommendation wave beam is reported base station by terminal, wherein, relevant information includes first and recommends wave beam
Mark, such as it is descending send wave beam numbering.According to the difference of the multiplex mode of downlink wave beam/wave beam training signal, terminal
The descending information for sending wave beam of recommendation of feedback can be different.For example, down beam shaping signal is in different OFDM symbols
Symbol or frame subframe time division multiplexing, terminal measure and feed back selection downgoing time information (OFDM symbol or
subframe index).For another example down beam shaping signal is in different frequency resource (material resources block PRB, subband
Subband) it is multiplexed, terminal measures and feeds back the downstream frequency information (PRB or subband index subband index) of selection.On
The information for stating correlation can further include the descending transmission wave beam training signal strength information that terminal receives, such as receive letter
Number power water equality.
Terminal preserves first and recommends downlink reception wave beam corresponding to wave beam.Terminal need preserve first recommend wave beam with it is descending
Receive the corresponding relation of wave beam.Optionally, terminal preserves downlink reception wave beam corresponding to wave beam in all first sets, preserves it
Corresponding relation.Here downlink reception wave beam can refer to its numbering in all candidate's downlink reception wave beams or refer to
The weights of downlink reception wave beam forming are in itself.
Step 604：Base station determines the second descending transmission beam set.
Base station selects a descending transmission wave beam (base station down transmission wave beam) from first set, then with the base station down
The second descending transmission beam set (abbreviation second set) is determined based on transmission wave beam.The first base station sends wave beam
Wave beam relevant information is recommended to determine based on terminal reports first, such as selection intensity highest wave beam.Base station can not also base
Wave beam is sent in the first recommendation beam information selection base station down that terminal reports.
Preferably, the descending transmission wave beam in second set sends wave beam spatial coherence higher than certain with base station down
Value, or the differential seat angle that space is pointed to is within limits.
Assuming that N is shared in second set2Individual descending transmission wave beam.As a special case, there is 1 descending hair in second set
Wave beam is sent, the downlink wave beam can be that base station down sends wave beam.
Step 605：Base station sends the configuration information of the second wave beam training signal.
Above-mentioned configuration information includes time-frequency location information of the second wave beam training signal etc..The configuration information also includes base station
The descending configured information for sending wave beam, the ripple corresponding with base station down transmission wave beam of the second wave beam training signal described in instruction terminal
Beam training signal for one or more space angle parameter (space angle of arrival average, or the extension of space angle of arrival,
Either angle average is set out in space or space is set out angle spread) it is quasi- colocation site (Quasi-co-located QCL)
's.If two signal pins are QCL to a space angle parameter, can speculate from the space angle parameter of a signal
Go out the space angle parameter of another signal.
In addition, the second training signal can be that periodically transmission or aperiodicity are sent.Above-mentioned second instruction
It can be that the training signal for sending the training signal of wave beam or receiving wave beam (only has one in second set to practice signal
Descending transmission wave beam).
Step 606：Base station sends the second wave beam training signal.
Step 607：Terminal according to the configuration information of the second wave beam training signal, it is determined that with the second wave beam training signal QCL
Base station down send wave beam training signal.
Step 608：Terminal downlink reception wave beam according to corresponding to descending transmission wave beam in the first descending transmission beam set,
It is determined that the first downlink reception wave beam corresponding with base station down transmission wave beam.
Step 609：Terminal determines that the descending of the second wave beam training signal connects according to the first downlink reception wave beam
Wave beam is received, and the second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal, it is determined that
Optimal downlink reception wave beam or optimal descending transmission wave beam.
Terminal can use user equipment downlink to send the first downlink reception wave beam (terminal preservation) corresponding to wave beam and receive second
Wave beam training signal.
Or terminal constructs downlink reception ripple based on the first downlink reception wave beam corresponding to user equipment downlink sends wave beam
Constriction closes (the referred to as the 3rd gathers).Terminal selects optimal reception wave beam according to the second wave beam training signal in the 3rd set.
Terminal can be attempted to receive the second training signal using each wave beam that receives in the 3rd set respectively, select reception signal
The most strong reception wave beam of power is as optimum reception wave beam, and in the descending transmission wave beam of the second wave beam training signal,
The most strong downlink reception wave beam of received signal power is selected as optimal descending transmission wave beam.
Preferably, the spatial coherence of the downlink reception wave beam and the first downlink reception wave beam in the 3rd set is higher than certain
Value, or the differential seat angle that space is pointed to is within limits.
The relation of above-mentioned first set and second set is specifically described below.
If the aerial array of base station is linear array, the weights for sending wave beam can be by the DFT Vector Groups of over-sampling
Into.For linear array, it is assumed that antenna oscillator number is N1, over-sampling rate O1, then the DFT vectors of over-sampling have O1N1It is individual, specifically
For：
N can then be included in first set1Individual wave beam, its beam shape-endowing weight value are respectively：Then
With the wave beam in first setThe beam shape-endowing weight value of wave beam in the second set of association can include：Shared O1It is individual.
For planar array, sending the weights of wave beam can be made up of the 2D DFT vectors of over-sampling.Assuming that the first dimension
Antenna oscillator number with the second dimension is respectively N1And N2, and the over-sampling rate factor of two dimensions is respectively O1And O2, then mistake
The DFT vectors of sampling have O1O2N1N2It is individual：
N can then be included in first set1N2Individual wave beam, its beam shape-endowing weight value are：
{zk,l| k=0, O1,2O1,...,(N1-1)O1；L=0, O2,2O2,...,(N2-1)O2}
With the wave beam in first set(n1=0,1 ..., N1-1；n2=0,1,2 ..., N2- 1) the second of association
The beam shape-endowing weight value of wave beam in set can include：
{zk,l| k=n1O1,n1O1+1,...,(n1+1)O1-1；L=n2O2,n2O2+1,...,(n2+1)O2-1}
Shared O1O2It is individual.
The wave beam training method of the embodiment of the present invention, the configuration information sent according to base station, by above-mentioned first downlink reception
The downlink reception beam set related to the first downlink reception wave beam is trained letter by wave beam
Number downlink reception wave beam, on the premise of training precision is ensured, accelerate terminal searching receive wave beam process, reduce ripple
Shu Xunlian duration and training complexity.In addition, the present invention use the training of two-stage wave beam train, can be between expense and precision
Obtain preferable balance.
Fourth embodiment
As shown in fig. 7, embodiments of the invention additionally provide a kind of terminal, including：
First determining module 71, for the first wave beam training signal sent according to base station, determine the first descending send wave
Downlink reception wave beam corresponding to descending transmission wave beam in constriction conjunction；
Second determining module 72, for according to the descending corresponding relation and base for sending wave beam and downlink reception wave beam
Stand send the second wave beam training signal configuration information, determine the downlink reception wave beam of the second wave beam training signal, it is described to match somebody with somebody
Confidence ceases the relevant information for indicating the second wave beam training signal and the training signal of base station down transmission wave beam, described
Base station down sends wave beam and belongs to the described first descending transmission beam set；
3rd determining module 73, for receiving described second using the downlink reception wave beam of the second wave beam training signal
Wave beam training signal, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
The terminal of the embodiment of the present invention, second determining module 72 include：
First determination sub-module 721, for the configuration information of the second wave beam training signal sent according to base station, it is determined that with
The related base station down of the second wave beam training signal sends wave beam；
Second determination sub-module 722, for according to the descending corresponding relation for sending wave beam and downlink reception wave beam, really
Fixed the first downlink reception wave beam corresponding with base station down transmission wave beam；
3rd determination sub-module 723, for according to the first downlink reception wave beam, determining the second wave beam training letter
Number downlink reception wave beam.
The terminal of the embodiment of the present invention, the 3rd determination sub-module 723 are used to, by the first downlink reception wave beam, make
For the downlink reception wave beam of the second wave beam training signal；Or
The construction downlink reception beam set related to the first downlink reception wave beam, and by the downlink reception wave beam
Gather the downlink reception wave beam as the second wave beam training signal.
The terminal of the embodiment of the present invention, the downlink reception wave beam and described first in the downlink reception beam set are descending
The spatial coherence of wave beam is received more than the downlink reception wave beam in the first predetermined threshold value or the downlink reception beam set
The differential seat angle pointed to the space of the first downlink reception wave beam is in the first preset range.
The terminal of the embodiment of the present invention, the configuration information are used to indicate the second wave beam training signal and the base station
The quasi- colocation site QCL information of the descending training signal for sending wave beam.
The terminal of the embodiment of the present invention, the 3rd determining module 73 are used in the descending of the second wave beam training signal
Receive in wave beam, it is optimal downlink reception wave beam to select the most strong downlink reception wave beam of received signal power.
The terminal of the embodiment of the present invention, the 3rd determining module 73 are used in the descending of the second wave beam training signal
Send in wave beam, select the most strong downlink reception wave beam of received signal power as optimal descending transmission wave beam.
The terminal of the embodiment of the present invention, the first wave beam training signal sent according to base station, determines the first descending send wave
Downlink reception wave beam corresponding to descending transmission wave beam in constriction conjunction；It is corresponding with downlink reception wave beam according to descending transmission wave beam
The configuration information for the second wave beam training signal that relation and base station are sent, determine the downlink reception ripple of the second wave beam training signal
Beam, configuration information are used for the relevant information for indicating the training signal that the second wave beam training signal sends wave beam with base station down, base
Descending transmission wave beam of standing belongs to the described first descending transmission beam set；Utilize the downlink reception wave beam of the second wave beam training signal
The second wave beam training signal is received, and determines optimal downlink reception wave beam or optimal descending transmission wave beam.The embodiment of the present invention
The middle configuration information according to the second wave beam training signal, the downlink reception wave beam of the second wave beam training signal is determined, without terminal
The second wave beam training signal is received using each downlink reception wave beam, accelerates the process that terminal searching receives wave beam,
Reduce the time needed for wave beam training and complexity.
5th embodiment
As shown in figure 8, embodiments of the invention additionally provide a kind of wave beam training method, applied to base station, including：
Step 801：The first wave beam training signal is sent to terminal, and receiving terminal is according to the first wave beam training signal
First sent recommends beam information, and the first wave beam training signal is the first descending descending transmission sent in beam set
Training signal corresponding to wave beam.
Here, terminal receives the first wave beam training signal that base station is sent, and the first wave beam training signal is measured, and selects
Select the first recommendation wave beam and the first recommendation wave beam relevant information is reported into base station, for example, terminal can select training signal to connect
The most strong wave beam of power is received to recommend wave beam.First recommendation wave beam is a wave beam or multiple wave beams.
Above-mentioned first recommendation beam information may include the mark of the first recommendation wave beam, such as the descending numbering for sending wave beam.
According to the difference of the multiplex mode of downlink wave beam/wave beam training signal, the descending information for sending wave beam of recommendation of terminal feedback can
With difference.For example, down beam shaping signal is time-multiplexed in different OFDM symbol symbol or frame subframe, terminal is surveyed
Measure and feed back the downgoing time information (OFDM symbol or subframe index) of selection.For another example down beam shaping
Signal is multiplexed in different frequency resource (material resources block PRB, subband subband), and terminal measures and feeds back the downlink frequency of selection
Rate information (PRB or subband index subband index).Above-mentioned related information can further include what terminal received
Descending transmission wave beam training signal strength information, such as received signal power level etc..
Step 802：The configuration information of the second wave beam training signal is sent to terminal, the configuration information is described for indicating
Second wave beam training signal sends the relevant information of the training signal of wave beam with base station down, and the base station down sends wave beam category
In the described first descending transmission beam set.
Step 803：The second wave beam training signal is sent to the terminal.
Here base station to terminal send the second wave beam training signal configuration information, make terminal according to the corresponding relation with
And the configuration information of the second wave beam training signal that base station is sent, determine the downlink reception ripple of the second wave beam training signal
Beam, the second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal, and determined optimal
Downlink reception wave beam or optimal descending transmission wave beam.
Specifically, above-mentioned configuration information is used for the instruction for indicating that the second wave beam training signal sends wave beam with base station down
Practice the quasi- colocation site QCL information of signal.The configuration information is specifically used for the second wave beam training signal and base station described in instruction terminal
Wave beam training signal corresponding to descending transmission wave beam for one or more space angle parameter (space angle of arrival average,
Either the extension of space angle of arrival or space are set out angle average, or space is set out angle spread) it is quasi- colocation site
(Quasi-co-located QCL's)., can be from one if two signal pins are QCL to a space angle parameter
The space angle parameter of signal deduces the space angle parameter of another signal.
Further, the step of sending the first wave beam training signal to terminal in above-mentioned steps 801 includes：
The first descending transmission beam set is determined, the described first descending beam set that sends includes multiple descending send waves
Beam, each descending corresponding one group of beam shape-endowing weight value of transmission wave beam；
Descending transmission wave beam in described first descending transmission beam set is carried out according to corresponding wave beam forming value
After figuration, obtain the first wave beam training signal and be sent to terminal.
Further, the step of sending the second wave beam training signal to terminal in above-mentioned steps 802 includes：
In the first descending descending send wave Shu Zuowei base station downs transmission wave beam of selection one in sending beam set；
Construct the second descending transmission beam set related to base station down transmission wave beam；By the described second descending hair
After sending the descending transmission wave beam in beam set to carry out figuration according to default wave beam forming value, the second wave beam instruction is obtained
Practice signal and be sent to terminal.
And it is sent to terminal.
Preferably, recommend beam information according to described first, chosen in the described first descending transmission beam set
Row sends wave beam and sends wave beam as the base station down.Such as selection intensity highest wave beam.
Preferably, the above-mentioned second descending descending transmission wave beam sent in beam set sends the sky of wave beam with base station down
Between correlation be higher than the second predetermined threshold value, or the second descending descending transmission wave beam sent in beam set with base station
The differential seat angle that the space that row sends wave beam is pointed to is in the second preset range.
The wave beam training method of the embodiment of the present invention, base station send the configuration information of the second wave beam training signal to terminal,
So that base station determines the downlink reception wave beam of the second wave beam training signal according to the configuration information, used without terminal each descending
Receive wave beam to receive the second wave beam training signal, accelerate the process that terminal searching receives wave beam, reduce wave beam instruction
Practice required time and complexity.
Sixth embodiment
As shown in figure 9, embodiments of the invention additionally provide a kind of base station, including：
First transceiver module 91, for sending the first wave beam training signal to terminal, and receiving terminal is according to described first
The first recommendation beam information that wave beam training signal is sent, the first wave beam training signal is the first descending transmission beam set
In descending transmission wave beam corresponding to training signal；
Second transceiver module 92, for sending the configuration information of the second wave beam training signal, the configuration information to terminal
For indicating that the second wave beam training signal and base station down send the relevant information of the training signal of wave beam, under the base station
Row sends wave beam and belongs to the described first descending transmission beam set；
3rd transceiver module 93, for sending the second wave beam training signal to the terminal.
The base station of the embodiment of the present invention, first transceiver module 91 include：
4th determination sub-module 911, for determining the first descending transmission beam set, the first descending transmission beam collection
Conjunction includes multiple descending transmission wave beams, each descending corresponding one group of beam shape-endowing weight value of transmission wave beam；
First sending submodule 912, for by described first it is descending send beam set in descending transmission wave beam according to
After corresponding wave beam forming value carries out figuration, obtain the first wave beam training signal and be sent to terminal.
The base station of the embodiment of the present invention, the 3rd transceiver module 93 include：
Submodule 931 is chosen, in the first descending one descending send wave Shu Zuowei base stations of selection in sending beam set
Descending transmission wave beam；
Submodule 932 is constructed, for constructing the second descending transmission beam collection related to base station down transmission wave beam
Close；
Second sending submodule 933, for by described second it is descending send beam set in descending transmission wave beam according to
After default wave beam forming value carries out figuration, obtain the second wave beam training signal and be sent to terminal.
The base station of the embodiment of the present invention, the selection submodule 931 is used to recommend beam information according to described first, in institute
State the first descending send and base station down transmission wave beam described in a descending send wave Shu Zuowei is chosen in beam set.
The base station of the embodiment of the present invention, the described second descending descending transmission wave beam and base station down sent in beam set
The spatial coherence for sending wave beam is higher than the second predetermined threshold value, or the second descending descending transmission sent in beam set
The differential seat angle for the space sensing that wave beam sends wave beam with base station down is in the second preset range.
The base station of the embodiment of the present invention, the configuration information are used to indicate the second wave beam training signal and the base station
The quasi- colocation site QCL information of the descending training signal for sending wave beam.
The base station of the embodiment of the present invention, to terminal send the second wave beam training signal configuration information so that base station according to
The configuration information determines the downlink reception wave beam of the second wave beam training signal, without terminal using each downlink reception wave beam to the
Two wave beam training signals are received, and accelerate the process that terminal searching receives wave beam, reduce the time needed for wave beam training
And complexity.
7th embodiment
In order to preferably realize above-mentioned purpose, as shown in Figure 10, the seventh embodiment of the present invention additionally provides a kind of base station,
The base station includes：Processor 1000；The memory 1020 being connected by EBI with the processor 1000, and pass through
The transceiver 1010 that EBI is connected with processor 1000；The memory 1020 is performing for storing the processor
Used program and data during operation；Data message or pilot tone are sent by the transceiver 1010, also pass through the receipts
Hair machine 1010 receives ascending control channel；When processor 1000 call and perform the program that is stored in the memory 1020 and
During data, following functional module is realized：
First transceiver module, for sending the first wave beam training signal to terminal, and receiving terminal is according to the first wave
The first recommendation beam information that beam training signal is sent, the first wave beam training signal are in the first descending transmission beam set
Descending transmission wave beam corresponding to training signal；
Second transceiver module, for sending the configuration information of the second wave beam training signal to terminal, the configuration information is used
In the relevant information for indicating the second wave beam training signal and the training signal of base station down transmission wave beam, the base station down
Send wave beam and belong to the described first descending transmission beam set；
3rd transceiver module, for sending the second wave beam training signal to the terminal.
Processor 1000 is used to read the program in memory 1020, performs following process：By transceiver 1010 to end
End sends the first wave beam training signal, and the first recommendation wave beam that receiving terminal is sent according to the first wave beam training signal is believed
Breath, the first wave beam training signal are training signal corresponding to the first descending descending transmission wave beam sent in beam set；
The configuration information of the second wave beam training signal is sent to terminal by transceiver 1010, the configuration information is used to indicate described the
Two wave beam training signals send the relevant information of the training signal of wave beam with base station down, and the base station down sends wave beam and belonged to
The first descending transmission beam set；The second wave beam training signal is sent to the terminal.
Transceiver 1010, for data to be received and sent under the control of processor 1000.
Wherein, in Fig. 10, bus architecture can include the bus and bridge of any number of interconnection, specifically by processor
The various circuits for the memory that 1000 one or more processors represented and memory 1020 represent link together.Total coil holder
Structure can also link together various other circuits of such as ancillary equipment, voltage-stablizer and management circuit or the like, this
A little is all it is known in the art, therefore, no longer it is described further herein.EBI provides interface.Transceiver
1010 can be multiple element, i.e., including transmitter and transceiver, there is provided for leading to over a transmission medium with various other devices
The unit of letter.Processor 1000 is responsible for bus architecture and common processing, and memory 1020 can store processor 1000
The used data when performing operation.
The base station of the embodiment of the present invention, processor 1000 are used to send the training of the first wave beam to terminal by transceiver 1010
Signal, and the first recommendation beam information that receiving terminal is sent according to the first wave beam training signal；Second is sent to terminal
The configuration information of wave beam training signal so that base station determines the downlink reception ripple of the second wave beam training signal according to the configuration information
Beam, the second wave beam training signal is received using each downlink reception wave beam without terminal, accelerate terminal searching reception
The process of wave beam, reduce the time needed for wave beam training and complexity.
8th embodiment
In order to preferably realize above-mentioned purpose, as shown in figure 11, the eighth embodiment of the present invention also provides a kind of terminal, should
Terminal includes：Processor 1100；The memory 1120 being connected by EBI with the processor 1100, and by total
The transceiver 1110 that line interface is connected with processor 1100；The memory is used to store the processor when performing operation
Used program and data；Down control channel is received by the transceiver 1110；When processor 1100 calls and performs
When the program and data that are stored in the memory 1120, following functional module is realized：
First determining module, for the first wave beam training signal sent according to base station, determine the first descending transmission wave beam
Downlink reception wave beam corresponding to descending transmission wave beam in set；
Second determining module, for according to the descending corresponding relation for sending wave beam and downlink reception wave beam and base station
The configuration information of the second wave beam training signal sent, determine the downlink reception wave beam of the second wave beam training signal, the configuration
Information is used for the relevant information for indicating the training signal that the second wave beam training signal sends wave beam with base station down, the base
Descending transmission wave beam of standing belongs to the described first descending transmission beam set；
3rd determining module, for receiving second ripple using the downlink reception wave beam of the second wave beam training signal
Beam training signal, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
Processor 1100 is used to read the program in memory 1120, performs following process：First sent according to base station
Wave beam training signal, determine downlink reception wave beam corresponding to the first descending descending transmission wave beam sent in beam set；According to
The configuration for the second wave beam training signal that the descending corresponding relation for sending wave beam and downlink reception wave beam and base station are sent
Information, determines the downlink reception wave beam of the second wave beam training signal, and the configuration information is used to indicate the second wave beam training
Signal sends the relevant information of the training signal of wave beam with base station down, and the base station down sends wave beam and belonged under described first
Row sends beam set；By transceiver 1110 described the is received using the downlink reception wave beam of the second wave beam training signal
Two wave beam training signals, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
Transceiver 1110, for data to be received and sent under the control of processor 1100.
Wherein, in fig. 11, bus architecture can include the bus and bridge of any number of interconnection, specifically by processor
The various circuits for the memory that 1100 one or more processors represented and memory 1120 represent link together.Total coil holder
Structure can also link together various other circuits of such as ancillary equipment, voltage-stablizer and management circuit or the like, this
A little is all it is known in the art, therefore, no longer it is described further herein.EBI provides interface.Transceiver
1110 can be multiple element, i.e., including transmitter and receiver, there is provided for leading to over a transmission medium with various other devices
The unit of letter.For different user equipmenies, user interface 1130, which can also be, the interface for needing equipment external is inscribed, even
The equipment connect includes but is not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 1100 is responsible for bus architecture and common processing, and memory 1120 can store processor 1100 and exist
Used data when performing operation.
The terminal of the embodiment of the present invention, processor 1100 are used for the first wave beam training signal sent according to base station, it is determined that
Downlink reception wave beam corresponding to the first descending descending transmission wave beam sent in beam set；According to it is descending transmission wave beam with it is descending
The configuration information of the corresponding relation of wave beam and the second wave beam training signal of base station transmission is received, determines the second wave beam training letter
Number downlink reception wave beam, configuration information is used for the training signal for indicating that the second wave beam training signal and base station down send wave beam
Relevant information, base station down send wave beam belong to the described first descending transmission beam set；Utilize the second wave beam training signal
Downlink reception wave beam receive the second wave beam training signal, and determine optimal downlink reception wave beam or optimal descending send wave
Beam.According to the configuration information of the second wave beam training signal in the embodiment of the present invention, determine that the second the descending of wave beam training signal connects
Wave beam is received, the second wave beam training signal is received using each downlink reception wave beam without terminal, accelerates terminal searching
The process of wave beam is received, reduces the time needed for wave beam training and complexity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (26)
- A kind of 1. wave beam training method, applied to terminal, it is characterised in that including：The the first wave beam training signal sent according to base station, determine the first descending descending transmission wave beam pair sent in beam set The downlink reception wave beam answered；The second wave beam sent according to the descending corresponding relation for sending wave beam and downlink reception wave beam and base station, which is trained, to be believed Number configuration information, determine the downlink reception wave beam of the second wave beam training signal, the configuration information is used to indicate described second Wave beam training signal sends the relevant information of the training signal of wave beam with base station down, and the base station down sends wave beam and belongs to institute State the first descending transmission beam set；The second wave beam training signal is received using the downlink reception wave beam of the second wave beam training signal, and is determined optimal Descending transmission wave beam or optimal downlink reception wave beam.
- 2. wave beam training method according to claim 1, it is characterised in that it is described according to it is described it is descending transmission wave beam with Row receives the configuration information of the corresponding relation of wave beam and the second wave beam training signal of base station transmission, determines second wave beam The step of downlink reception wave beam of training signal, includes：The configuration information of the second wave beam training signal sent according to base station, it is determined that related to the second wave beam training signal Base station down sends wave beam；According to the descending corresponding relation for sending wave beam and downlink reception wave beam, it is determined that sending wave beam pair with the base station down The the first downlink reception wave beam answered；According to the first downlink reception wave beam, the downlink reception wave beam of the second wave beam training signal is determined.
- 3. wave beam training method according to claim 2, it is characterised in that described according to the first downlink reception ripple Beam, include the step of the downlink reception wave beam for determining the second wave beam training signal：By the first downlink reception wave beam, the downlink reception wave beam as the second wave beam training signal；OrThe construction downlink reception beam set related to the first downlink reception wave beam, and by the downlink reception beam set Downlink reception wave beam as the second wave beam training signal.
- 4. wave beam training method according to claim 3, it is characterised in that descending in the downlink reception beam set The spatial coherence for receiving wave beam and the first downlink reception wave beam is more than the first predetermined threshold value or the downlink reception ripple The differential seat angle that the space of downlink reception wave beam and the first downlink reception wave beam in constriction conjunction is pointed to is in the first default model In enclosing.
- 5. wave beam training method according to claim 1, it is characterised in that the configuration information is used to indicate described second Wave beam training signal sends the quasi- colocation site QCL information of the training signal of wave beam with the base station down.
- 6. wave beam training method according to claim 1, it is characterised in that using under the second wave beam training signal The step of going and receive wave beam reception the second wave beam training signal, and determining optimal downlink reception wave beam includes：In the downlink reception wave beam of the second wave beam training signal, the most strong downlink reception wave beam of received signal power is selected For optimal downlink reception wave beam.
- 7. wave beam training method according to claim 1, it is characterised in that using under the second wave beam training signal Go and receive wave beam reception the second wave beam training signal, and determine that optimal descending the step of sending wave beam includes：In the descending transmission wave beam of the second wave beam training signal, the most strong downlink reception wave beam of received signal power is selected For optimal descending transmission wave beam.
- A kind of 8. terminal, it is characterised in that including：First determining module, for the first wave beam training signal sent according to base station, determine the first descending transmission beam set In descending transmission wave beam corresponding to downlink reception wave beam；Second determining module, for being sent according to the descending corresponding relation for sending wave beam and downlink reception wave beam and base station The second wave beam training signal configuration information, determine the downlink reception wave beam of the second wave beam training signal, the configuration information For indicating that the second wave beam training signal and base station down send the relevant information of the training signal of wave beam, under the base station Row sends wave beam and belongs to the described first descending transmission beam set；3rd determining module, for receiving the second wave beam instruction using the downlink reception wave beam of the second wave beam training signal Practice signal, and determine optimal descending transmission wave beam or optimal downlink reception wave beam.
- 9. terminal according to claim 8, it is characterised in that second determining module includes：First determination sub-module, for the configuration information of the second wave beam training signal sent according to base station, it is determined that with described The related base station down of two wave beam training signals sends wave beam；Second determination sub-module, for the corresponding relation according to the descending transmission wave beam and downlink reception wave beam, it is determined that and institute State base station down and send the first downlink reception wave beam corresponding to wave beam；3rd determination sub-module, according to the first downlink reception wave beam, determine that the descending of the second wave beam training signal connects Receive wave beam.
- 10. terminal according to claim 9, it is characterised in that the 3rd determination sub-module is used under described first Row receives wave beam, the downlink reception wave beam as the second wave beam training signal；OrThe construction downlink reception beam set related to the first downlink reception wave beam, and by the downlink reception beam set Downlink reception wave beam as the second wave beam training signal.
- 11. terminal according to claim 10, it is characterised in that the downlink reception ripple in the downlink reception beam set The spatial coherence of beam and the first downlink reception wave beam is more than the first predetermined threshold value or the downlink reception beam set In the differential seat angle that points to of space of downlink reception wave beam and the first downlink reception wave beam be in the first preset range.
- 12. terminal according to claim 8, it is characterised in that the configuration information is used to indicate the second wave beam instruction Practice the quasi- colocation site QCL information that signal sends the training signal of wave beam with the base station down.
- 13. terminal according to claim 8, it is characterised in that the 3rd determining module is used in second wave beam In the downlink reception wave beam of training signal, it is optimal downlink reception ripple to select the most strong downlink reception wave beam of received signal power Beam.
- 14. terminal according to claim 8, it is characterised in that the 3rd determining module is used in second wave beam In the descending transmission wave beam of training signal, the most strong downlink reception wave beam of received signal power is selected as optimal descending send wave Beam.
- A kind of 15. wave beam training method, applied to base station, it is characterised in that including：The first wave beam training signal is sent to terminal, and first pushing away of being sent according to the first wave beam training signal of receiving terminal Beam information is recommended, the first wave beam training signal is to be instructed corresponding to the first descending descending transmission wave beam sent in beam set Practice signal；The configuration information of the second wave beam training signal is sent to terminal, the configuration information is used to indicate the second wave beam training Signal sends the relevant information of the training signal of wave beam with base station down, and the base station down sends wave beam and belonged under described first Row sends beam set；The second wave beam training signal is sent to the terminal.
- 16. wave beam training method according to claim 15, it is characterised in that send the first wave beam training signal to terminal The step of include：The first descending transmission beam set is determined, the described first descending beam set that sends includes multiple descending transmission wave beams, often The individual descending corresponding one group of beam shape-endowing weight value of transmission wave beam；The described first descending descending transmission wave beam sent in beam set is subjected to figuration according to corresponding wave beam forming value Afterwards, obtain the first wave beam training signal and be sent to terminal.
- 17. wave beam training method according to claim 15, it is characterised in that send the second wave beam training signal to terminal The step of include：In the first descending descending send wave Shu Zuowei base station downs transmission wave beam of selection one in sending beam set；Construct the second descending transmission beam set related to base station down transmission wave beam；The described second descending descending transmission wave beam sent in beam set is subjected to figuration according to default wave beam forming value Afterwards, obtain the second wave beam training signal and be sent to terminal.
- 18. wave beam training method according to claim 17, it is characterised in that selected in the first descending transmission beam set The step of taking a descending send wave Shu Zuowei base station downs to send wave beam includes：Recommend beam information according to described first, in the described first descending descending send wave beam work of selection one in sending beam set Wave beam is sent for the base station down.
- 19. wave beam training method according to claim 17, it is characterised in that in the second descending transmission beam set Descending transmission wave beam and base station down send the spatial coherence of wave beam and be higher than the second predetermined threshold value, it is or described second descending The differential seat angle for sending the space sensing that the descending transmission wave beam in beam set sends wave beam with base station down is default in second In the range of.
- 20. wave beam training method according to claim 15, it is characterised in that the configuration information is used to indicate described the Two wave beam training signals send the quasi- colocation site QCL information of the training signal of wave beam with the base station down.
- A kind of 21. base station, it is characterised in that including：First transceiver module, for sending the first wave beam training signal to terminal, and receiving terminal is instructed according to first wave beam Practice signal send first recommend beam information, the first wave beam training signal be first it is descending send beam set under Row sends training signal corresponding to wave beam；Second transceiver module, for sending the configuration information of the second wave beam training signal to terminal, the configuration information is used to refer to Show that the second wave beam training signal sends the relevant information of the training signal of wave beam with base station down, the base station down is sent Wave beam belongs to the described first descending transmission beam set；3rd transceiver module, for sending the second wave beam training signal to the terminal.
- 22. base station according to claim 21, it is characterised in that first transceiver module includes：4th determination sub-module, for determining the first descending transmission beam set, the described first descending beam set that sends includes Multiple descending transmission wave beams, each descending corresponding one group of beam shape-endowing weight value of transmission wave beam；First sending submodule, for by described first it is descending send beam set in descending transmission wave beam according to corresponding ripple After beam figuration value carries out figuration, obtain the first wave beam training signal and be sent to terminal.
- 23. base station according to claim 21, it is characterised in that the 3rd transceiver module includes：Submodule is chosen, in the first descending descending send wave Shu Zuowei base station downs transmission of selection one in sending beam set Wave beam；Submodule is constructed, for constructing the second descending transmission beam set related to base station down transmission wave beam；Second sending submodule, for by described second it is descending send beam set in descending transmission wave beam according to default ripple After beam figuration value carries out figuration, obtain the second wave beam training signal and be sent to terminal.
- 24. base station according to claim 23, it is characterised in that the selection submodule is used to recommend according to described first Beam information, in the described first descending base station down send wave described in one descending send wave Shu Zuowei of selection in sending beam set Beam.
- 25. base station according to claim 23, it is characterised in that the described second descending descending hair sent in beam set Send wave beam to send the spatial coherence of wave beam with base station down and be higher than the second predetermined threshold value, or the second descending transmission wave beam The differential seat angle for the space sensing that descending transmission wave beam in set sends wave beam with base station down is in the second preset range.
- 26. base station according to claim 21, it is characterised in that the configuration information is used to indicate the second wave beam instruction Practice the quasi- colocation site QCL information that signal sends the training signal of wave beam with the base station down.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610875307.5A CN107888243B (en) | 2016-09-30 | 2016-09-30 | Beam training method, terminal and base station |
| PCT/CN2017/087509 WO2018059003A1 (en) | 2016-09-30 | 2017-06-08 | Beam training method, terminal and base station |
| TW106121599A TWI679857B (en) | 2016-09-30 | 2017-06-28 | Beam training method, terminal and base station |
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| WO2019210804A1 (en) * | 2018-05-04 | 2019-11-07 | 华为技术有限公司 | Beam training method, relevant apparatus and system |
| CN110933749A (en) * | 2018-09-20 | 2020-03-27 | 成都华为技术有限公司 | Method and device for indicating beam |
| WO2021204253A1 (en) * | 2020-04-10 | 2021-10-14 | 华为技术有限公司 | Beam training method and device |
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| CN103765794A (en) * | 2011-09-01 | 2014-04-30 | 三星电子株式会社 | Apparatus and method for selecting best beam in wireless communication system |
| CN103875191A (en) * | 2011-08-12 | 2014-06-18 | 三星电子株式会社 | Apparatus and method for adaptive beam-forming in wireless communication system |
| US20150372737A1 (en) * | 2013-02-07 | 2015-12-24 | Lg Electronics Inc. | Method and apparatus for transmitting downlink data on basis of beam restricted sub-frame |
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| KR20130124004A (en) * | 2012-05-04 | 2013-11-13 | 삼성전자주식회사 | Method and apparatus for resource allocation based on transmission scheme in milimiter wave communication system |
| CN103716081B (en) * | 2013-12-20 | 2019-08-06 | 中兴通讯股份有限公司 | Downlink beam determination, apparatus and system |
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- 2016-09-30 CN CN201610875307.5A patent/CN107888243B/en active Active
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- 2017-06-08 WO PCT/CN2017/087509 patent/WO2018059003A1/en active Application Filing
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| CN103875191A (en) * | 2011-08-12 | 2014-06-18 | 三星电子株式会社 | Apparatus and method for adaptive beam-forming in wireless communication system |
| CN103765794A (en) * | 2011-09-01 | 2014-04-30 | 三星电子株式会社 | Apparatus and method for selecting best beam in wireless communication system |
| US20150372737A1 (en) * | 2013-02-07 | 2015-12-24 | Lg Electronics Inc. | Method and apparatus for transmitting downlink data on basis of beam restricted sub-frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019210804A1 (en) * | 2018-05-04 | 2019-11-07 | 华为技术有限公司 | Beam training method, relevant apparatus and system |
| US11800375B2 (en) | 2018-05-04 | 2023-10-24 | Huawei Technologies Co., Ltd. | Beam training method, related apparatus, and system |
| CN110933749A (en) * | 2018-09-20 | 2020-03-27 | 成都华为技术有限公司 | Method and device for indicating beam |
| US12010527B2 (en) | 2018-09-20 | 2024-06-11 | Huawei Technologies Co., Ltd. | Beam indication method and apparatus |
| WO2021204253A1 (en) * | 2020-04-10 | 2021-10-14 | 华为技术有限公司 | Beam training method and device |
| CN113517914A (en) * | 2020-04-10 | 2021-10-19 | 华为技术有限公司 | Beam training method and device |
| CN113517914B (en) * | 2020-04-10 | 2023-10-20 | 华为技术有限公司 | Beam training method and device |
| US11990977B1 (en) | 2020-04-10 | 2024-05-21 | Huawei Technologies Co., Ltd. | Beam training method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI679857B (en) | 2019-12-11 |
| CN107888243B (en) | 2020-03-20 |
| TW201815087A (en) | 2018-04-16 |
| WO2018059003A1 (en) | 2018-04-05 |
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