CN107182120B - A kind of method and device of random access - Google Patents
A kind of method and device of random access Download PDFInfo
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- CN107182120B CN107182120B CN201610131410.9A CN201610131410A CN107182120B CN 107182120 B CN107182120 B CN 107182120B CN 201610131410 A CN201610131410 A CN 201610131410A CN 107182120 B CN107182120 B CN 107182120B
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- signal
- base station
- arrival bearing
- accidental access
- cell synchronous
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
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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
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of method and device of random access, and the method for the random access includes: the cell synchronous signal for detecting base station and sending, and determines the arrival bearing of the cell synchronous signal；According to the arrival bearing of the cell synchronous signal, the target sending direction of accidental access signal is determined；The accidental access signal is sent up in the target sender；The confirmation signal that the base station is sent on the arrival bearing of the accidental access signal is received, the base station is accessed.The embodiment of the present invention in access procedure, obtains optimum beam figuration direction in base station and terminal, the data transmission of both sides later can apriority carried out with optimal beam, ensure that the performance of data link；And the method for random access access delay under high band is low, it is practical.
Description
Technical field
The present invention relates to fields of communication technology, particularly relate to a kind of method and device of random access.
Background technique
For high band (carrier frequency is greater than 6GHz) mobile communications network, base station and terminal are required using height directive property
It wave beam and to be mutually aligned.To maintain the high-gain of link.It, can using reference information generally for the mobile station of connected state
Optimal wave beam matching direction is found to estimate the quality of wave beam, and by control signaling measurement report, such as wave beam
Index, is sent to base station, and tracking beam direction maintains the gain of wave beam forming.However, some situations, initial beam direction
May be it is random, as initial access network, from Radio Link Failure restore and initiate switching, it is specific for, mobile station
Because when above-mentioned time initiates random access, the optimal wave beam that sends and receives to can not know in advance.
For high frequency section termination random access, different and low frequency section termination needs big come thermal compensation signal using wave beam forming
Scale decline, there is presently no fairly perfect schemes.
For high band mobile network, unquestionably, beam forming gain is needed to make up propagation path loss, this demand
The data transmission, common signal transmission and accidental access signal transmission of connected state are all consistent.Due to optimal wave
Beam matching direction be it is unknowable, mobile station can only all send random access lead code (RACH in multiple beam directions
Preamble), it is expected that receiving end attempts to find alignment wave beam, so that finding a wave beam in multiple wave beams is able to achieve high-gain
Beam forming gain.This thinking is comparison intuitively and is readily apparent that.Firstly, terminal repeats to send in a plurality of directions
RACH Preamble covers most of direction as far as possible；Base station attempts to receive in all directions, detects lead code and true
Recognize optimal transmission beam index and receives beam index.However the subsequent step of RACH process can use optimal transmission
With receive wave beam pair, so that being targeted by wave beam reaches maximum gain.But this scheme is there are larger problem, more in the first step
The beam direction of a preamble, which covers in all directions, only has minority to be able to achieve high beam forming gain, that is to say, that big portion
It is misalignment that the preamble divided, which sends wave beam and receives wave beam, this will lead to RACH Preamble duration and may require that
It is very long, initial access, RLF can be restored, switching, TDD cell handling capacity and beam dispath can all generate very big negative
It influences, the program is caused not to be available.
Summary of the invention
The purpose of the present invention is to provide a kind of method and device of random access, it is whole to solve high band in the prior art
End random access sends wave beam using wave beam forming and receives wave beam always misalignment when thermal compensation signal large-scale fading cause
The longer problem of random access time delay.
In order to achieve the above object, the embodiment of the present invention provides a kind of method of random access, comprising:
The cell synchronous signal that base station is sent is detected, determines the arrival bearing of the cell synchronous signal；
According to the arrival bearing of the cell synchronous signal, the target sending direction of accidental access signal is determined；
The accidental access signal is sent up in the target sender；
The confirmation signal that the base station is sent on the arrival bearing of the accidental access signal is received, the base is accessed
It stands.
Wherein, the step of detecting the cell synchronous signal that base station is sent, determining the arrival bearing of the cell synchronous signal
Are as follows:
The cell synchronous signal that base station utilizes broad beam to send is detected, determines the arrival bearing of the cell synchronous signal.
Wherein, the arrival bearing according to the cell synchronous signal, determines the target sender of accidental access signal
To the step of are as follows:
Under the conditions of time division duplex, determine that the arrival bearing of the cell synchronous signal is the target of the accidental access signal
Sending direction；Alternatively,
Under the conditions of frequency division duplex, the arrival bearing of the cell synchronous signal on different frequency range is counted, determines different frequency range
The target sending direction of accidental access signal；Alternatively,
Under the conditions of full duplex, determine that the arrival bearing of the cell synchronous signal is the target hair of the accidental access signal
Send direction.
Wherein, described to include: the step of the target sender sends up the accidental access signal
The accidental access signal is sent using broad beam on the target sending direction；Alternatively,
The accidental access signal is sent using optimal beam on the target sending direction.
Wherein, the determination signal for receiving the base station and sending on the arrival bearing of the accidental access signal, connects
The step of entering the base station include:
Receive the confirmation signal that the base station is sent on the arrival bearing of the accidental access signal using narrow beam；
According to confirmation signal, confirmation accesses the base station.
Wherein, the confirmation signal for receiving the base station and sending on the arrival bearing of the accidental access signal, connects
After entering the base station, the method also includes:
Carried out data transmission using narrow beam and the base station.
The embodiment of the present invention also provides a kind of method of random access, comprising:
Send cell synchronous signal；
Detection terminal determines the target sending direction of accidental access signal based on the arrival bearing of the cell synchronous signal
The accidental access signal sent up afterwards in the target sender, determines the arrival bearing of the accidental access signal；
Confirmation signal is sent on the arrival bearing of the accidental access signal, confirms the access of the terminal.
Wherein, the step of transmission cell synchronous signal includes:
Cell synchronous signal is sent using broad beam.
Wherein, described to include: the step of sending confirmation signal on the arrival bearing of the accidental access signal
Confirmation signal is sent using narrow beam on the arrival bearing of the accidental access signal.
Wherein, it is described on the arrival bearing of the accidental access signal send confirmation signal after, the method is also wrapped
It includes:
Carried out data transmission using narrow beam and the terminal.
The embodiment of the present invention also provides a kind of device of random access, comprising:
Synchronization signal detection module determines the cell synchronous signal for detecting the cell synchronous signal of base station transmission
Arrival bearing；
Sending direction determining module determines accidental access signal for the arrival bearing according to the cell synchronous signal
Target sending direction；
Signal transmitting module is accessed, for sending up the accidental access signal in the target sender；
Receiving module, the confirmation letter sent on the arrival bearing of the accidental access signal for receiving the base station
Number, access the base station.
Wherein, the synchronization signal detection module includes:
Synchronization signal detection submodule, for detect base station utilize broad beam send cell synchronous signal, determine described in
The arrival bearing of cell synchronous signal.
Wherein, described sender includes: to determining module
First sending direction determines submodule, for determining the incoming wave of the cell synchronous signal under the conditions of time division duplex
Direction is the target sending direction of the accidental access signal；Alternatively,
Second sending direction determines submodule, under the conditions of frequency division duplex, counting the cell synchronous letter on different frequency range
Number arrival bearing, determine the target sending direction of the accidental access signal of different frequency range；Alternatively,
Third sending direction determines submodule, for determining the incoming wave side of the cell synchronous signal under the conditions of full duplex
To the target sending direction for the accidental access signal.
Wherein, the access signal transmitting module includes:
First access signal sending submodule, it is described random for being sent on the target sending direction using broad beam
Access signal；Alternatively,
Second access signal sending submodule, on the target sending direction using optimal beam send it is described with
Machine accesses signal.
Wherein, the receiving module includes:
Receiving unit is sent on the arrival bearing of the accidental access signal using narrow beam for receiving the base station
Confirmation signal；
Access unit, for according to confirmation signal, confirmation to access the base station.
Wherein, described device further include:
First data transmission module, for being carried out data transmission using narrow beam and the base station.
The embodiment of the present invention also provides a kind of device of random access, comprising:
First sending module, for sending cell synchronous signal；
Detection module determines accidental access signal based on the arrival bearing of the cell synchronous signal for detecting terminal
The accidental access signal sent up after target sending direction in the target sender determines coming for the accidental access signal
Wave direction；
Second sending module, for sending confirmation signal on the arrival bearing of the accidental access signal, described in confirmation
The access of terminal.
Wherein, first sending module includes:
First sending submodule, for sending cell synchronous signal using broad beam.
Wherein, second sending module includes:
Second sending submodule, for utilizing narrow beam to send confirmation letter on the arrival bearing of the accidental access signal
Number.
Wherein, described device further include:
Second data transmission module, for being carried out data transmission using narrow beam and the terminal.
Above-mentioned technical proposal of the invention at least has the following beneficial effects:
In the method and device of the random access of the embodiment of the present invention, the cell synchronous signal that terminal is sent according to base station is obtained
Optimal arrival bearing is known, to determine the target sending direction of accidental access signal according to optimal arrival bearing；Base station is then
Confirmation signal is sent on the arrival bearing of accidental access signal, so that base station and terminal survey the arrival bearing of opposite end
It is more accurate to measure, to solve the delay problem of random access, promotes the efficiency of terminal random access.
Detailed description of the invention
Fig. 1 shows the basic step flow charts of the method for the random access of first embodiment of the present invention offer；
Fig. 2 indicates the basic step flow chart of the method for the random access that the second embodiment of the present invention provides；
Fig. 3 indicates the position view of high band base station and terminal provided in an embodiment of the present invention；
Fig. 4 indicates the structure chart of the device for the random access that the third embodiment of the present invention provides；
Fig. 5 indicates the structure chart of the device for the random access that the fifth embodiment of the present invention provides.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
It should be noted that the method for random access provided in an embodiment of the present invention specifically refers to terminal random access high frequency
The method of Duan Jizhan, therefore the method for the random access relates generally to method of both terminal side and base station side, in order to become apparent from
The method embodiment of the present invention of the description random access method of random access is retouched from terminal side and base station side respectively
It states.Specifically, high band base station as shown in Figure 3 and terminal, the coverage area of base station is divided into 6 sectors, 60 degree of each sector,
Control channel and dedicated channel are all made of wave beam forming, meanwhile, terminal also uses beamforming technique, to guarantee MPS process
And link performance.
First embodiment
As shown in Figure 1, the first embodiment of the present invention provides the method for the random access of terminal side, the side of the random access
Method, comprising:
Step 11, the cell synchronous signal that detection base station is sent, determines the arrival bearing of the cell synchronous signal；
Step 12, according to the arrival bearing of the cell synchronous signal, the target sending direction of accidental access signal is determined；
Step 13, the accidental access signal is sent up in the target sender；
Step 14, the confirmation signal that the base station is sent on the arrival bearing of the accidental access signal is received, is accessed
The base station.
In the first embodiment of the present invention, terminal detects the downlink cell synchronous signal that base station is sent, and can get downlink letter
Number best arrival bearing, i.e. the arrival bearing of cell synchronous signal.Terminal then can be according to the incoming wave side of cell synchronous signal
The target sending direction for the accidental access signal for needing to send to determining terminal, so that it is random to send up this in target sender
Signal is accessed, base station detects the arrival bearing of terminal after detecting the accidental access signal, i.e. accidental access signal
Arrival bearing, then base station sends confirmation signal to terminal on this arrival bearing, informs that terminal has succeeded access base station；And terminal
Wave beam forming can be carried out using narrow beam alignment terminal on the arrival bearing of accidental access signal, be connect at random to promote terminal
The probability entered.
Specifically, in the first embodiment of the present invention, step 11 are as follows:
Step 111, the cell synchronous signal that detection base station utilizes broad beam to send determines coming for the cell synchronous signal
Wave direction.
In the embodiment of the present invention, it is to be based on that base station uses the broad beam figuration of low dimensional to send cell synchronous signal first
MPS process performance considers.By broad beam, cell synchronous signal, the terminal compared to narrow beam, in sector are sent in turn
It can quickly detect valid synchronization signal.For example, sector is 60 degree, half-power beam width (HPBW) is 20 degree, then covers
The lid sector period is 3；And be 10 degree according to half-power beam width, then the coverage sector period is 6.Obviously, broad beam is having
Under the premise of having certain gain, it is more suitable for terminal detection synchronization signal and arrival bearing.
Specifically, in the first embodiment of the present invention, step 12 are as follows:
Step 121, under the conditions of time division duplex, determine the arrival bearing of the cell synchronous signal for random access letter
Number target sending direction；Alternatively,
Step 122, under the conditions of frequency division duplex, the arrival bearing of the cell synchronous signal on different frequency range is counted, is determined not
With the target sending direction of the accidental access signal of frequency range；Alternatively,
Step 123, under the conditions of full duplex, determine that the arrival bearing of the cell synchronous signal is the accidental access signal
Target sending direction.
Different processing methods is provided for different duplex modes in the above embodiment of the present invention.Specifically, working as base
It stands and terminal is using under Time Division Duplex TDD mode, according to TDD channel reciprocity, cell synchronous signal that terminal will test
Target sending direction of the arrival bearing as uplink random access signal；When base station and terminal are using under Frequency Division Duplex FDD mode,
Since high band cell coverage area is small, direct projection diameter is bigger compared with strong or reflection diameter probability, then terminal detects that downlink cell is same
The arrival bearing of signal is walked, and is counted, the target sender of the uplink random access signal on different frequency range can be obtained
To；And under the premise of meeting system same frequency AF panel, base station and terminal can also work under the conditions of full duplex, with
TDD mode is similar, target hair of the arrival bearing for the cell synchronous signal that terminal will test as uplink random access signal
Send direction.
Specifically, step 13 includes: in the first embodiment of the present invention
Step 131, the accidental access signal is sent using broad beam on the target sending direction；Alternatively,
Step 132, the accidental access signal is sent using optimal beam on the target sending direction.
In the above embodiment of the present invention, in order to guarantee the transmission power of accidental access signal, terminal uses wave beam forming
Mode send；Specifically, being divided into two kinds of situations, the first situation: the first quantity of antenna vibration of terminal is more, can be by significant wave
Beam width is classified, and selects the broad beam of low dimensional first, improves transmission signal gain；Second situation: the antenna of terminal
Array element negligible amounts then directly send signal with optimal (or most narrow) wave beam that the aerial array of terminal can be supported.And with
In above-mentioned steps 11 base station send cell synchronous signal when use broad beam the considerations of it is consistent, terminal sent using broad beam with
Machine accesses signal, is also beneficial to base station to detect signal.
Specifically, in the first embodiment of the present invention, step 14 includes:
Step 141, the base station is received to send really on the arrival bearing of the accidental access signal using narrow beam
Recognize signal；
Step 142, according to confirmation signal, confirmation accesses the base station.
In the above embodiment of the present invention, after base station detects the arrival bearing of accidental access signal, in the arrival bearing
Upper transmission confirmation signal, so that terminal accesses the base station.
It is also more accurate for arrival bearing's measurement after terminal and base station carry out the information exchange of random access, this
Shi Caiyong narrow beam can advantageously ensure that preferable link-quality when data communication.I.e. after step 14, the method is also wrapped
It includes:
Step 15, carried out data transmission using narrow beam and the base station.
The method for the random access that the first embodiment of the present invention provides confirms downlink incoming wave side by cell synchronous signal
To, and uplink arrival bearing is confirmed by accidental access signal, so that base station and terminal in access procedure, obtain most preferably
Wave beam forming direction, the data transmission of both sides later can apriority carried out with optimal (or most narrow) wave beam, ensure that data
The performance of link；And the method for random access access delay under high band is low, it is practical.
Second embodiment
As shown in Fig. 2, the second embodiment of the present invention provides the method for the random access of base station side, the side of the random access
Method includes:
Step 21, cell synchronous signal is sent；
Step 22, detection terminal determines that the target of accidental access signal is sent out based on the arrival bearing of the cell synchronous signal
The accidental access signal sent up behind direction in the target sender is sent, determines the incoming wave side of the accidental access signal
To；
Step 23, confirmation signal is sent on the arrival bearing of the accidental access signal, confirms the access of the terminal.
In the above embodiment of the present invention, terminal detects the downlink cell synchronous signal that base station is sent, and can get downlink letter
Number best arrival bearing, i.e. the arrival bearing of cell synchronous signal.Terminal then can be according to the incoming wave side of cell synchronous signal
The target sending direction for the accidental access signal for needing to send to determining terminal, so that it is random to send up this in target sender
Signal is accessed, base station detects the arrival bearing of terminal after detecting the accidental access signal, i.e. accidental access signal
Arrival bearing, then base station sends confirmation signal to terminal on this arrival bearing, informs that terminal has succeeded access base station；And terminal
Wave beam forming can be carried out using narrow beam alignment terminal on the arrival bearing of accidental access signal, be connect at random to promote terminal
The probability entered.
Specifically, step 21 includes: in the second embodiment of the present invention
Step 211, cell synchronous signal is sent using broad beam.
In the embodiment of the present invention, it is to be based on that base station uses the broad beam figuration of low latitudes to send cell synchronous signal first
MPS process performance considers.By broad beam, cell synchronous signal, the terminal compared to narrow beam, in sector are sent in turn
It can quickly detect valid synchronization signal.For example, sector is 60 degree, half-power beam width (HPBW) is 20 degree, then covers
The lid sector period is 3；And be 10 degree according to half-power beam width, then the coverage sector period is 6.Obviously, broad beam is having
Under the premise of having certain gain, it is more suitable for terminal detection synchronization signal and arrival bearing.
Specifically, step 23 includes: in the second embodiment of the present invention
Step 231, confirmation signal is sent using narrow beam on the arrival bearing of the accidental access signal.
In the above embodiment of the present invention, due to having been acknowledged the arrival bearing of accidental access signal, as base station most
Good wave beam forming direction is then sent confirmation signal using narrow beam and is conducive to improve wave beam forming efficiency, at this time to be promoted
The probability of terminal random access.
It is also more accurate for arrival bearing's measurement after terminal and base station carry out the information exchange of random access, this
Shi Caiyong narrow beam can advantageously ensure that preferable link-quality when data communication.I.e. after step 23, the method is also wrapped
It includes:
Step 24, carried out data transmission using narrow beam and the terminal.
The method for the random access that the second embodiment of the present invention provides confirms downlink incoming wave side by cell synchronous signal
To, and uplink arrival bearing is confirmed by accidental access signal, so that base station and terminal in access procedure, obtain most preferably
Wave beam forming direction, the data transmission of both sides later can apriority carried out with optimal (or most narrow) wave beam, ensure that data
The performance of link；And the method for random access access delay under high band is low, it is practical.
3rd embodiment
As shown in figure 4, the third embodiment of the present invention provides a kind of device of random access, comprising:
Synchronization signal detection module 41 determines the cell synchronous letter for detecting the cell synchronous signal of base station transmission
Number arrival bearing；
Sending direction determining module 42 determines that random access is believed for the arrival bearing according to the cell synchronous signal
Number target sending direction；
Signal transmitting module 43 is accessed, for sending up the accidental access signal in the target sender；
Receiving module 44, the confirmation letter sent on the arrival bearing of the accidental access signal for receiving the base station
Number, access the base station.
Specifically, synchronization signal detection module described in the third embodiment of the present invention 41 includes:
Synchronization signal detection submodule, for detect base station utilize broad beam send cell synchronous signal, determine described in
The arrival bearing of cell synchronous signal.
Specifically, sending direction determining module described in the third embodiment of the present invention 42 includes:
First sending direction determines submodule, for determining the incoming wave of the cell synchronous signal under the conditions of time division duplex
Direction is the target sending direction of the accidental access signal；Alternatively,
Second sending direction determines submodule, under the conditions of frequency division duplex, counting the cell synchronous letter on different frequency range
Number arrival bearing, determine the target sending direction of the accidental access signal of different frequency range；Alternatively,
Third sending direction determines submodule, for determining the incoming wave side of the cell synchronous signal under the conditions of full duplex
To the target sending direction for the accidental access signal.
Specifically, access signal transmitting module 43 described in the third embodiment of the present invention includes:
First access signal sending submodule, it is described random for being sent on the target sending direction using broad beam
Access signal；Alternatively,
Second access signal sending submodule, on the target sending direction using optimal beam send it is described with
Machine accesses signal.
Specifically, receiving module 44 described in the third embodiment of the present invention includes:
Receiving unit is sent on the arrival bearing of the accidental access signal using narrow beam for receiving the base station
Confirmation signal；
Access unit, for according to confirmation signal, confirmation to access the base station.
Specifically, device described in the third embodiment of the present invention further include:
First data transmission module, for being carried out data transmission using narrow beam and the base station.
It should be noted that the device of random access provided in an embodiment of the present invention is provided using above-mentioned first embodiment
Random access method random access device, then first embodiment provide random access method all embodiments
It is suitable for the device for the random access that the 3rd embodiment provides, and can reaches the same or similar beneficial effect.
Fourth embodiment
The fourth embodiment of the present invention provides a kind of device of random access, comprising: processor；And pass through bus interface
The memory being connected with the processor, the memory is for storing the processor used journey when executing operation
Sequence and data realize following function mould when processor calls and executes the program and data that are stored in the memory
Block:
Synchronization signal detection module determines the cell synchronous signal for detecting the cell synchronous signal of base station transmission
Arrival bearing；
Sending direction determining module determines accidental access signal for the arrival bearing according to the cell synchronous signal
Target sending direction；
Signal transmitting module is accessed, for sending up the accidental access signal in the target sender；
Receiving module, the confirmation letter sent on the arrival bearing of the accidental access signal for receiving the base station
Number, access the base station.
It should be noted that the device of random access provided in an embodiment of the present invention is provided using above-mentioned first embodiment
Random access method random access device, then first embodiment provide random access method all embodiments
It is suitable for the device for the random access that the fourth embodiment provides, and can reaches the same or similar beneficial effect.
5th embodiment
As shown in figure 5, the fifth embodiment of the present invention provides a kind of device of random access, comprising:
First sending module 51, for sending cell synchronous signal；
Detection module 52 determines accidental access signal based on the arrival bearing of the cell synchronous signal for detecting terminal
Target sending direction after the accidental access signal that is sent up in the target sender, determine the accidental access signal
Arrival bearing；
Second sending module 53 confirms institute for sending confirmation signal on the arrival bearing of the accidental access signal
State the access of terminal.
Specifically, the first sending module 51 described in the fifth embodiment of the present invention includes:
First sending submodule, for sending cell synchronous signal using broad beam.
Specifically, the second sending module 53 described in the fifth embodiment of the present invention includes:
Second sending submodule, for utilizing narrow beam to send confirmation letter on the arrival bearing of the accidental access signal
Number.
Specifically, device described in the fifth embodiment of the present invention further include:
Second data transmission module, for being carried out data transmission using narrow beam and the terminal.
It should be noted that the device of random access provided in an embodiment of the present invention is provided using above-mentioned second embodiment
Random access method random access device, then second embodiment provide random access method all embodiments
It is suitable for the device for the random access that the 5th embodiment provides, and can reaches the same or similar beneficial effect.
Sixth embodiment
The sixth embodiment of the present invention provides a kind of device of random access, comprising: processor；And pass through bus interface
The memory being connected with the processor, the memory is for storing the processor used journey when executing operation
Sequence and data realize following function mould when processor calls and executes the program and data that are stored in the memory
Block:
First sending module, for sending cell synchronous signal；
Detection module determines accidental access signal based on the arrival bearing of the cell synchronous signal for detecting terminal
The accidental access signal sent up after target sending direction in the target sender determines coming for the accidental access signal
Wave direction；
Second sending module, for sending confirmation signal on the arrival bearing of the accidental access signal, described in confirmation
The access of terminal.
It should be noted that the device of random access provided in an embodiment of the present invention is provided using above-mentioned second embodiment
Random access method random access device, then second embodiment provide random access method all embodiments
It is suitable for the device for the random access that the sixth embodiment provides, and can reaches the same or similar beneficial effect.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (20)
1. a kind of method of random access characterized by comprising
The cell synchronous signal that base station is sent is detected, determines the arrival bearing of the cell synchronous signal；
According to the arrival bearing of the cell synchronous signal, the target sending direction of accidental access signal is determined；
The accidental access signal is sent to base station on the target sending direction；
The confirmation signal that the base station is sent on the arrival bearing of the accidental access signal is received, the base station is accessed；
Wherein, the base station can determine the arrival bearing of the accidental access signal according to the accidental access signal detected.
2. the method for random access according to claim 1, which is characterized in that the cell synchronous signal that detection base station is sent,
The step of determining the arrival bearing of the cell synchronous signal are as follows:
The cell synchronous signal that base station utilizes broad beam to send is detected, determines the arrival bearing of the cell synchronous signal.
3. the method for random access according to claim 1, which is characterized in that described according to the cell synchronous signal
Arrival bearing, the step of determining the target sending direction of accidental access signal are as follows:
Under the conditions of time division duplex, determine that the arrival bearing of the cell synchronous signal is the target transmission of the accidental access signal
Direction；Alternatively,
Under the conditions of frequency division duplex, the arrival bearing of the cell synchronous signal on different frequency range is counted, determines the random of different frequency range
Access the target sending direction of signal；Alternatively,
Under the conditions of full duplex, determine that the arrival bearing of the cell synchronous signal is the target sender of the accidental access signal
To.
4. the method for random access according to claim 1, which is characterized in that described to be sent out on the target sending direction
The step of sending the accidental access signal include:
The accidental access signal is sent using broad beam on the target sending direction；Alternatively,
The accidental access signal is sent using optimal beam on the target sending direction.
5. the method for random access according to claim 1, which is characterized in that described to receive the base station described random
The step of accessing the determination signal that sends on the arrival bearing of signal, accessing the base station include:
Receive the confirmation signal that the base station is sent on the arrival bearing of the accidental access signal using narrow beam；
According to confirmation signal, confirmation accesses the base station.
6. the method for random access according to claim 1, which is characterized in that described to receive the base station described random
The confirmation signal sent on the arrival bearing of signal is accessed, is accessed after the base station, the method also includes:
Carried out data transmission using narrow beam and the base station.
7. a kind of method of random access characterized by comprising
Send cell synchronous signal；
Detection terminal determined based on the arrival bearing of the cell synchronous signal after the target sending direction of accidental access signal
The accidental access signal that the target sender sends up, determines the arrival bearing of the accidental access signal；
Confirmation signal is sent to terminal on the arrival bearing of the accidental access signal, confirms the access of the terminal.
8. the method for random access according to claim 7, which is characterized in that the step of the transmission cell synchronous signal
Include:
Cell synchronous signal is sent using broad beam.
9. the method for random access according to claim 7, which is characterized in that described to come in the accidental access signal
Wave side sends up the step of confirmation signal and includes:
Confirmation signal is sent using narrow beam on the arrival bearing of the accidental access signal.
10. the method for random access according to claim 7, which is characterized in that described in the accidental access signal
After sending confirmation signal on arrival bearing, the method also includes:
Carried out data transmission using narrow beam and the terminal.
11. a kind of device of random access characterized by comprising
Synchronization signal detection module determines coming for the cell synchronous signal for detecting the cell synchronous signal of base station transmission
Wave direction；
Sending direction determining module determines the mesh of accidental access signal for the arrival bearing according to the cell synchronous signal
Mark sending direction；
Signal transmitting module is accessed, for sending the accidental access signal to base station on the target sending direction；
Receiving module, the confirmation signal sent on the arrival bearing of the accidental access signal for receiving the base station, connects
Enter the base station；
Wherein, the base station can determine the arrival bearing of the accidental access signal according to the accidental access signal detected.
12. the device of random access according to claim 11, which is characterized in that the synchronization signal detection module packet
It includes:
Synchronization signal detection submodule, the cell synchronous signal for utilizing broad beam to send for detecting base station, determines the cell
The arrival bearing of synchronization signal.
13. the device of random access according to claim 11, which is characterized in that described sender is to determining module packet
It includes:
First sending direction determines submodule, for determining the arrival bearing of the cell synchronous signal under the conditions of time division duplex
For the target sending direction of the accidental access signal；Alternatively,
Second sending direction determines submodule, for counting the cell synchronous signal on different frequency range under the conditions of frequency division duplex
Arrival bearing determines the target sending direction of the accidental access signal of different frequency range；Alternatively,
Third sending direction determines submodule, for determining that the arrival bearing of the cell synchronous signal is under the conditions of full duplex
The target sending direction of the accidental access signal.
14. the device of random access according to claim 11, which is characterized in that the access signal transmitting module packet
It includes:
First access signal sending submodule, for sending the random access using broad beam on the target sending direction
Signal；Alternatively,
Second access signal sending submodule, for being connect at random on the target sending direction using optimal beam transmission is described
Enter signal.
15. the device of random access according to claim 11, which is characterized in that the receiving module includes:
Receiving unit is sent really on the arrival bearing of the accidental access signal using narrow beam for receiving the base station
Recognize signal；
Access unit, for according to confirmation signal, confirmation to access the base station.
16. the device of random access according to claim 11, which is characterized in that described device further include:
First data transmission module, for being carried out data transmission using narrow beam and the base station.
17. a kind of device of random access characterized by comprising
First sending module, for sending cell synchronous signal；
Detection module determines the target of accidental access signal for detecting terminal based on the arrival bearing of the cell synchronous signal
The accidental access signal sent up after sending direction in the target sender, determines the incoming wave side of the accidental access signal
To；
Second sending module confirms institute for sending confirmation signal to terminal on the arrival bearing of the accidental access signal
State the access of terminal.
18. the device of random access according to claim 17, which is characterized in that first sending module includes:
First sending submodule, for sending cell synchronous signal using broad beam.
19. the device of random access according to claim 17, which is characterized in that second sending module includes:
Second sending submodule, for utilizing narrow beam to send confirmation signal on the arrival bearing of the accidental access signal.
20. the device of random access according to claim 17, which is characterized in that described device further include:
Second data transmission module, for being carried out data transmission using narrow beam and the terminal.
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| CN108155927B (en) * | 2017-12-06 | 2021-03-19 | 京信通信系统（中国）有限公司 | Communication method and device |
| CN108156667B (en) * | 2017-12-06 | 2020-11-03 | 京信通信系统（中国）有限公司 | Communication method and device |
| WO2019134092A1 (en) * | 2018-01-04 | 2019-07-11 | 富士通株式会社 | Configuration and indication method and device for beam failure recovery, and communication system |
| CN110351856A (en) * | 2018-04-03 | 2019-10-18 | 英特尔公司 | The device and method for determining the wave beam for PDCCH |
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| WO2015140838A1 (en) * | 2014-03-20 | 2015-09-24 | パナソニック株式会社 | Base station, terminal apparatus, and initial connection method |
| WO2015147717A1 (en) * | 2014-03-25 | 2015-10-01 | Telefonaktiebolaget L M Ericsson (Publ) | System and method for beam-based physical random-access |
| CN105122662A (en) * | 2012-12-26 | 2015-12-02 | 三星电子株式会社 | Method and apparatus for random access in communication system with large number of antennas |
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| CN105122662A (en) * | 2012-12-26 | 2015-12-02 | 三星电子株式会社 | Method and apparatus for random access in communication system with large number of antennas |
| WO2015140838A1 (en) * | 2014-03-20 | 2015-09-24 | パナソニック株式会社 | Base station, terminal apparatus, and initial connection method |
| WO2015147717A1 (en) * | 2014-03-25 | 2015-10-01 | Telefonaktiebolaget L M Ericsson (Publ) | System and method for beam-based physical random-access |
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