CN106888046A - A kind of high-frequency communication cut-in method based on LF communication, base station and user terminal - Google Patents
A kind of high-frequency communication cut-in method based on LF communication, base station and user terminal Download PDFInfo
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- CN106888046A CN106888046A CN201610666521.XA CN201610666521A CN106888046A CN 106888046 A CN106888046 A CN 106888046A CN 201610666521 A CN201610666521 A CN 201610666521A CN 106888046 A CN106888046 A CN 106888046A
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- user terminal
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
-
- 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
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
-
- 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
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of high-frequency communication cut-in method, base station, user terminal based on LF communication, methods described includes：It is that the user terminal determines to serve the high frequency base station of the user terminal after low frequency base station receives the random access lead code of user terminal transmission；Each high frequency base station of the user terminal at least one beam information of the user terminal is served in calculating；The beam information that will be calculated sends to each high frequency base station respectively, so that the user terminal is served in each high frequency base station using the beam information for being calculated.
Description
Technical field
The present invention relates to wireless access technology, more particularly to a kind of high-frequency communication cut-in method, base based on LF communication
Stand and user terminal.
Background technology
Current third generation partner program (3GPP, 3rd Generation Partnership Project) standardization
During, in order to ensure that network coverage is big, it is a kind of mode of great potential that control channel carries out beam shaping.Therefore,
Need to carry out initial wave beam alignment operation in initial access process, between user terminal and base station.A kind of feasible wave beam pair
Neat mode is beam scanning (beam sweeping) operation, specifically, by launching with reference to letter between base station and user terminal
Number, all of transmission-reception (TX-RX) wave beam pair is traveled through, so as to therefrom select optimal wave beam pair, carry out specific data and lead to
Letter.
, it is necessary to carry out substantial amounts of wave beam to traversal under beam scanning mode.For example, for base station side-subscriber terminal side
The system of wave beam just can confirm that optimal beam pair, it is necessary to carry out 128 scanning of wave beam pair, and this will greatly be extended initially
The time of access.Especially in high frequency communication system, because high frequency channel is subject to intercept (blockage), this considerably increases
The difficulty being initially accessed in communication system.And for 5G systems, the frequency of carrier frequency may be improved further, this will be more unfavorable
In being initially accessed.
At present, for it is above-mentioned eat dishes without rice or wine to be initially accessed present in problem, not yet have the technical scheme can be for reference.
The content of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of high-frequency communication access side based on LF communication
Method, base station and user terminal.
The technical scheme of the embodiment of the present invention is as follows：
A kind of high-frequency communication cut-in method based on LF communication provided in an embodiment of the present invention, methods described includes：
It is that the user terminal determines to serve after low frequency base station receives the random access lead code of user terminal transmission
The high frequency base station of the user terminal；
Each high frequency base station of the user terminal at least one beam information of the user terminal is served in calculating；
The beam information that will be calculated sends to each high frequency base station respectively, so that each high frequency base station is using being counted
The beam information of calculation serves the user terminal.
In the embodiment of the present invention, the low frequency base station is by the X2 interface between each high frequency base station by the wave beam
Information sends to each high frequency base station respectively.
In the embodiment of the present invention, methods described also includes：
The low frequency base station fail for the user terminal determine serve the high frequency base station of the user terminal when, directly
As the serving BS of the user terminal for the user terminal provides access service.
A kind of high-frequency communication cut-in method based on LF communication provided in an embodiment of the present invention, methods described includes：
When user terminal initiates to be initially accessed, random access lead code is sent to low frequency base station；
The user terminal starts the reception wave beam of beam scanning, selection and self pair；
After the user terminal determines that itself wave beam aligns with the reception wave beam, the access control received in wave beam is received
Information processed simultaneously performs Stochastic accessing, accesses and sends the base station for receiving wave beam.
In the embodiment of the present invention, the base station for sending the reception wave beam includes：High frequency base station receives described random
The low frequency base station of access lead code.
A kind of high-frequency communication cut-in method based on LF communication provided in an embodiment of the present invention, methods described includes：
High frequency base station receives the beam information of the high frequency base station that low frequency base station sends to user terminal, based on being received
Beam information to the user terminal send Access Control information.
In the embodiment of the present invention, the high frequency base station receives the wave beam by the X2 interface between the low frequency base station
Information.
A kind of low frequency base station provided in an embodiment of the present invention, the low frequency base station includes：
Receiving unit, the random access lead code for receiving user terminal transmission；
Determining unit, for determining to serve the high frequency base station of the user terminal for the user terminal；
Computing unit, each high frequency base station of the user terminal at least the one of the user terminal is served for calculating
Individual beam information；
Transmitting element, the beam information for that will be calculated sends to each high frequency base station respectively, so that each height
The user terminal is served in frequency base station using the beam information for being calculated.
In the embodiment of the present invention, the transmitting element, being additionally operable to will by the X2 interface between each high frequency base station
The beam information sends to each high frequency base station respectively.
In the embodiment of the present invention, the low frequency base station also includes：Access service unit, for failing in the determining unit
When determining to serve the high frequency base station of the user terminal for the user terminal, directly as the service base of the user terminal
Stand as the user terminal provides access service.
A kind of user terminal provided in an embodiment of the present invention, the user terminal includes：
Unit is initiated, for initiating to be initially accessed, and random access lead code is sent to low frequency base station；
Scanning element, for starting beam scanning, the reception wave beam that selection is matched with the user terminal；
Whether determining unit, the wave beam for determining the user terminal aligns with the reception wave beam, is triggered during alignment
Receiving unit；
Receiving unit, for receiving the Access Control information in the reception wave beam；
Access unit, for performing Stochastic accessing, accesses and sends the base station for receiving wave beam.
In the embodiment of the present invention, the base station for sending the reception wave beam includes：High frequency base station receives described random
The low frequency base station of access lead code.
A kind of high frequency base station provided in an embodiment of the present invention, the high frequency base station includes：
Receiving unit, for receiving the high frequency base station of low frequency base station transmission to the beam information of user terminal；
Transmitting element, for sending Access Control information to the user terminal based on the beam information for being received.
In the embodiment of the present invention, the receiving unit is additionally operable to be received by the X2 interface between the low frequency base station
The beam information.
Technical scheme provided in an embodiment of the present invention, when user terminal is performed to be initially accessed, sends out to low frequency base station first
Random access lead code is sent, and the home position information of the user terminal and the high frequency on user terminal periphery are obtained by low frequency base station
The relevant information of base station, is that user terminal determines to serve the high frequency base station of the user terminal, and for high frequency base station calculates each height
Beam information between frequency base station and user terminal, the beam information that will be calculated by X2 interface is sent to corresponding high frequency base
Stand, associated high-frequency base station, so as to optimize beam scanning process, accelerates beam scanning according to the beam selection configured information
Journey, improves the efficiency of user terminal Stochastic accessing.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention one；
Fig. 2 is the structural representation of the BEAM-SELECTION-INDEX signalings of the embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention two；
Fig. 4 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention three；
Fig. 5 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention four；
Fig. 6 is the structure composition schematic diagram of the low frequency base station of the embodiment of the present invention；
Fig. 7 is the structure composition schematic diagram of the user terminal of the embodiment of the present invention；
Fig. 8 is the structure composition schematic diagram of the high frequency base station of the embodiment of the present invention.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings to this hair
The realization of bright embodiment is described in detail, appended accompanying drawing purposes of discussion only for reference, not for limiting the embodiment of the present invention.
Fig. 1 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention one, such as Fig. 1
Shown, the high-frequency communication cut-in method based on LF communication is comprised the following steps：
Step 101：It is that the user terminal is true after low frequency base station receives the random access lead code of user terminal transmission
Surely the high frequency base station of the user terminal is served.
In the embodiment of the present invention, the high frequency of the user terminal is served at least one determination that can be based on following information
Base station：High frequency base station position information, customer position information；Current beam service condition (such as whether optimal beam has been used, if
Have been used, can change another wave beam of other high frequency base stations of surrounding into, mitigate interference), customer service state (such as user
Send the small information of data volume and access low frequency station as sent out the wechat used time, and user see data volume it is big such as video when access height
Frequency is stood), user match situation (being avoided interference with wave beam with base station) etc..
Used as a kind of implementation, low frequency base station can be by measuring direction of arrival (DOA, the Direction of radiation signal
Of Arrival) or direction of arrival (AOA, Angle Of Arrival) estimate the position of UE, low frequency base station can also be by connecing
Signal intensity for receiving etc. determines the position of UE, it is also possible to the position for determining UE is combined based on received signal intensity and DOA or AOA
Put.
In the embodiment of the present invention, when user terminal needs to be initially accessed, random access lead code is sent to low frequency base station.
Step 102：Each high frequency base station of the user terminal at least one ripple of the user terminal is served in calculating
Beam information (BSI).
In the embodiment of the present invention, beam information includes beam direction, the information such as DOA, AOA, the power for sending wave beam.
Step 103：The beam information that will be calculated sends to each high frequency base station respectively, so that each high frequency base station
Calculated beam information is used to serve the user terminal.
In the embodiment of the present invention, the low frequency base station is by the X2 interface between each high frequency base station by the wave beam
Information sends to each high frequency base station respectively.
A beam selection index BEAM-SELECTION- is additionally arranged as a kind of implementation, in the embodiment of the present invention
The signaling of INDEX, the signaling mainly includes the respective beam selection configured information in N number of high frequency base station.Indicate respectively corresponding base
Stand, to that define the beam information of the base station.That is, after low frequency base station calculates beam information for each high frequency base station,
It is packaged in BEAM-SELECTION-INDEX signalings, sending the BEAM-SELECTION-INDEX to each high frequency base station respectively believes
Order, each high frequency base station, will by beam information according to beam information corresponding with itself in BEAM-SELECTION-INDEX signalings
Ask and send corresponding wave beam to user terminal, in user terminal is accessed high frequency base station.BEAM-SELECTION-INDEX signalings
Structure can be structure as shown in Figure 2.
It is of course also possible to the beam information of each high frequency base station that will be calculated sends to corresponding high frequency base station respectively.
The above method also includes：The low frequency base station fails to determine to serve the user terminal for the user terminal
During high frequency base station, the serving BS directly as the user terminal provides access service for the user terminal.
Fig. 3 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention three, such as Fig. 3
Shown, the high-frequency communication cut-in method based on LF communication is comprised the following steps：
Step 301, when user terminal initiates to be initially accessed, random access lead code is sent to low frequency base station.
It is that the user terminal determines to serve after low frequency base station receives the random access lead code of user terminal transmission
The high frequency base station of the user terminal.Each high frequency base station of the user terminal to the wave beam of the user terminal is served in calculating
Information, and the beam information that will be calculated sends to each high frequency base station respectively, so that each high frequency base station is using being counted
The beam information of calculation serves the user terminal.
In the embodiment of the present invention, the high frequency of the user terminal is served at least one determination that can be based on following information
Base station：High frequency base station position information, customer position information；Current beam service condition (such as whether optimal beam has been used, if
Have been used, can change another wave beam of other high frequency base stations of surrounding into, mitigate interference), customer service state (such as user
Send the small information of data volume and access low frequency station as sent out the wechat used time, and user see data volume it is big such as video when access height
Frequency is stood), user match situation (being avoided interference with wave beam with base station) etc..
Step 302, user terminal starts the reception wave beam of beam scanning, selection and self pair.
Step 303, after user terminal determines that itself wave beam aligns with the reception wave beam, connecing in the reception reception wave beam
Enter control information and perform Stochastic accessing, access and send the base station for receiving wave beam.
The base station for sending the reception wave beam includes：High frequency base station or the low frequency of the reception random access lead code
Base station.
Fig. 4 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention three, such as Fig. 4
Shown, the high-frequency communication cut-in method based on LF communication is comprised the following steps：
Step 401, high frequency base station receives the high frequency base station of low frequency base station transmission to the beam information of user terminal.
In the embodiment of the present invention, when user terminal needs to be initially accessed, random access lead code is sent to low frequency base station.It is low
After frequency base station receives the random access lead code of user terminal transmission, according to the current positional information of the user terminal, institute
The positional information and status information of the high frequency base station on user terminal periphery are stated, is that the user terminal determines to serve the user
The high frequency base station of terminal.Each high frequency base station of the user terminal to the beam information of the user terminal is served in calculating, and
The beam information that will be calculated sends to each high frequency base station respectively, so that each high frequency base station uses calculated wave beam
Information service is in the user terminal.
Step 402, high frequency base station is based on received beam information and sends Access Control information to the user terminal.
High frequency base station sends corresponding wave beam to user terminal, and Access Control information is sent into user terminal.
The base station for sending the reception wave beam includes：High frequency base station or the low frequency of the reception random access lead code
Base station.
Below by way of specific example, the essence of the technical scheme of embodiment that the present invention is furture elucidated.
Fig. 5 is the schematic flow sheet of the high-frequency communication cut-in method based on LF communication of the embodiment of the present invention four, such as Fig. 5
Shown, the high-frequency communication cut-in method based on LF communication is comprised the following steps：
Step 1, when user terminal needs to be initially accessed, user terminal sends random access guiding tremendously low frequency base station；
Step 2, low frequency base station is according to high around current (renewal) geographical location information, and user terminal of the user terminal
The information such as positional information, the high frequency base station state of frequency base station, low frequency base station calculates the high frequency base station for being responsible for servicing the user terminal
And its corresponding wave beam；
In the embodiment of the present invention, if low frequency base station determine it is current be may be selected without suitable high frequency base station, can omit step 3 to
Step 5, low frequency base station directly performs step step 6, for user terminal provides service.
Step 3, the beam information (BSI) that low frequency base station will be tried to achieve in step 2 is transferred to each high frequency base station by X2 interface.
In the embodiment of the present invention, the high frequency base station for serving user terminal can be one or more.Assume in this example
For single high frequency base station services, only HB eNB2Receive the BSI and to subscriber terminal service.
Step 4, high frequency base station is using the beams serves user terminal in step 2；
Step 5, user terminal end starts the receiving terminal wave beam of beam scanning selection pairing, until wave beam aligns；
Step 6, user terminal end starts mib information, receives the operation such as SIB information, random access request.
Fig. 6 is the structure composition schematic diagram of the low frequency base station of the embodiment of the present invention, as shown in fig. 6, the low frequency base station is wrapped
Include：
Receiving unit 60, the random access lead code for receiving user terminal transmission；
Determining unit 61, for determining to serve the high frequency base station of the user terminal for the user terminal；
In the embodiment of the present invention, the high frequency of the user terminal is served at least one determination that can be based on following information
Base station：High frequency base station position information, customer position information；Current beam service condition (such as whether optimal beam has been used, if
Have been used, can change another wave beam of other high frequency base stations of surrounding into, mitigate interference), customer service state (such as user
Send the small information of data volume and access low frequency station as sent out the wechat used time, and user see data volume it is big such as video when access height
Frequency is stood), user match situation (being avoided interference with wave beam with base station) etc..
Computing unit 62, each high frequency base station of the user terminal to the wave beam of the user terminal is served for calculating
Information；
Transmitting element 63, the beam information for that will be calculated sends to each high frequency base station respectively, so that described each
The user terminal is served in high frequency base station using the beam information for being calculated.
In the embodiment of the present invention, the transmitting element 63 is additionally operable to by the X2 interface between each high frequency base station
The beam information is sent to each high frequency base station respectively.
On the basis of the low frequency base station shown in Fig. 6, the low frequency base station also includes：Access service unit (does not show in Fig. 6
Go out), for the determining unit 61 fail for the user terminal determine serve the high frequency base station of the user terminal when,
Serving BS directly as the user terminal provides access service for the user terminal.
It will be appreciated by those skilled in the art that foregoing receiving unit 60 and transmitting element 63 can be by antenna systems
Realize；Determining unit 61 and computing unit 62 can be realized by FPGA, microprocessor etc..In low frequency base station shown in Fig. 6
Each unit realizes that function can refer to the associated description of the high-frequency communication cut-in method based on LF communication of foregoing embodiments
And understand.
Fig. 7 is the structure composition schematic diagram of the user terminal of the embodiment of the present invention, as shown in fig. 6, the user terminal bag
Include：
Unit 70 is initiated, for initiating to be initially accessed, and random access lead code is sent to low frequency base station；
Scanning element 71, for starting beam scanning, the reception wave beam that selection is matched with the user terminal；
Whether determining unit 72, the wave beam for determining the user terminal aligns with the reception wave beam, is touched during alignment
Transmission/reception unit；
Receiving unit 73, for receiving the Access Control information in the reception wave beam；
Access unit 74, for performing Stochastic accessing, accesses and sends the base station for receiving wave beam.
In the embodiment of the present invention, the base station for sending the reception wave beam includes：High frequency base station receives described random
The low frequency base station of access lead code.
It will be appreciated by those skilled in the art that foregoing initiation unit 70, scanning element 71, receiving unit 73, access list
Unit 74 etc. can be realized by antenna system；Determining unit 72 can be realized by FPGA, microprocessor etc..Shown in Fig. 7
Each unit in user terminal realizes that function can refer to the high-frequency communication access side based on LF communication of foregoing embodiments
The associated description of method and understand.
Fig. 8 is the structure composition schematic diagram of the high frequency base station of the embodiment of the present invention, as shown in figure 8, the high frequency base station is wrapped
Include：
Receiving unit 80, for receiving the high frequency base station of low frequency base station transmission to the beam information of user terminal；
Transmitting element 81, for sending Access Control information to the user terminal based on the beam information for being received.
In the embodiment of the present invention, the receiving unit 80 is additionally operable to be connect by the X2 interface between the low frequency base station
Receive the beam information.
It will be appreciated by those skilled in the art that foregoing receiving unit 80 and receiving unit 81 can be by antenna systems
Realize.The each unit in high frequency base station shown in Fig. 8 realize function can refer to foregoing embodiments based on LF communication
The associated description of high-frequency communication cut-in method and understand.
Between technical scheme described in the embodiment of the present invention, in the case where not conflicting, can be in any combination.
In several embodiments provided by the present invention, it should be understood that disclosed method and smart machine, Ke Yitong
Other modes are crossed to realize.Apparatus embodiments described above are only schematical, for example, the division of the unit, only
Only a kind of division of logic function, can have other dividing mode, such as when actually realizing：Multiple units or component can be tied
Close, or be desirably integrated into another system, or some features can be ignored, or do not perform.In addition, shown or discussed each group
Into part coupling each other or direct-coupling or communication connection can be by some interfaces, equipment or unit it is indirect
Coupling is communicated to connect, and can be electrical, machinery or other forms.
The above-mentioned unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, it is also possible to be distributed to multiple network lists
In unit；Part or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a second processing unit,
Can also be each unit individually as a unit, it is also possible to which two or more units are integrated in a unit；
Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form reality of SFU software functional unit
It is existing.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.
Claims (14)
1. a kind of high-frequency communication cut-in method based on LF communication, it is characterised in that methods described includes：
It is that the user terminal determines to serve described after low frequency base station receives the random access lead code of user terminal transmission
The high frequency base station of user terminal；
Each high frequency base station of the user terminal at least one beam information of the user terminal is served in calculating；
The beam information that will be calculated sends to each high frequency base station respectively, so that each high frequency base station uses what is calculated
Beam information serves the user terminal.
2. the high-frequency communication cut-in method based on LF communication according to claim 1, it is characterised in that the low frequency base
Stand and sent the beam information to each high frequency base station respectively by the X2 interface between each high frequency base station.
3. the high-frequency communication cut-in method based on LF communication according to claim 1, it is characterised in that methods described is also
Including：
The low frequency base station fail for the user terminal determine serve the high frequency base station of the user terminal when, directly as
The serving BS of the user terminal provides access service for the user terminal.
4. a kind of high-frequency communication cut-in method based on LF communication, it is characterised in that methods described includes：
When user terminal initiates to be initially accessed, random access lead code is sent to low frequency base station；
The user terminal starts the reception wave beam of beam scanning, selection and self pair；
After the user terminal determines that itself wave beam aligns with the reception wave beam, the Access Control letter received in wave beam is received
Stochastic accessing is ceased and performed, is accessed and is sent the base station for receiving wave beam.
5. the business centered on user terminal according to claim 4 provides method, it is characterised in that the transmission institute
The base station for stating reception wave beam includes：High frequency base station or the low frequency base station of the reception random access lead code.
6. a kind of high-frequency communication cut-in method based on LF communication, it is characterised in that methods described includes：
High frequency base station receives the high frequency base station of low frequency base station transmission to the beam information of user terminal, based on the ripple for being received
Beam information sends Access Control information to the user terminal.
7. the business centered on user terminal according to claim 6 provides method, it is characterised in that the high frequency base
Stand and receive the beam information by the X2 interface between the low frequency base station.
8. a kind of low frequency base station, it is characterised in that the low frequency base station includes：
Receiving unit, the random access lead code for receiving user terminal transmission；
Determining unit, for determining to serve the high frequency base station of the user terminal for the user terminal；
Computing unit, each high frequency base station of the user terminal at least one ripple of the user terminal is served for calculating
Beam information；
Transmitting element, the beam information for that will be calculated sends to each high frequency base station respectively, so that each high frequency base
Station uses calculated beam information to serve the user terminal.
9. low frequency base station according to claim 8, it is characterised in that the transmitting element, is additionally operable to by each with described
X2 interface between high frequency base station sends the beam information to each high frequency base station respectively.
10. low frequency base station according to claim 8, it is characterised in that the low frequency base station also includes：Access service list
Unit, for the determining unit fail for the user terminal determine serve the high frequency base station of the user terminal when, directly
Connect as the serving BS of the user terminal as the user terminal provides access service.
11. a kind of user terminals, it is characterised in that the user terminal includes：
Unit is initiated, for initiating to be initially accessed, and random access lead code is sent to low frequency base station；
Scanning element, for starting beam scanning, the reception wave beam that selection is matched with the user terminal；
Whether determining unit, the wave beam for determining the user terminal aligns with the reception wave beam, triggers receiving during alignment
Unit；
Receiving unit, for receiving the Access Control information in the reception wave beam；
Access unit, for performing Stochastic accessing, accesses and sends the base station for receiving wave beam.
12. user terminals according to claim 11, it is characterised in that the transmission base station bag for receiving wave beam
Include：High frequency base station or the low frequency base station of the reception random access lead code.
13. a kind of high frequency base stations, it is characterised in that the high frequency base station includes：
Receiving unit, for receiving the high frequency base station of low frequency base station transmission to the beam information of user terminal；
Transmitting element, for sending Access Control information to the user terminal based on the beam information for being received.
14. high frequency base stations according to claim 13, it is characterised in that the receiving unit, be additionally operable to by with it is described
X2 interface between low frequency base station receives the beam information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610666521.XA CN106888046A (en) | 2016-08-12 | 2016-08-12 | A kind of high-frequency communication cut-in method based on LF communication, base station and user terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666521.XA CN106888046A (en) | 2016-08-12 | 2016-08-12 | A kind of high-frequency communication cut-in method based on LF communication, base station and user terminal |
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