CN106332226A - Cell searching method and device for MMC (Millimeter Wave Communication) network - Google Patents
Cell searching method and device for MMC (Millimeter Wave Communication) network Download PDFInfo
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- CN106332226A CN106332226A CN201510332721.7A CN201510332721A CN106332226A CN 106332226 A CN106332226 A CN 106332226A CN 201510332721 A CN201510332721 A CN 201510332721A CN 106332226 A CN106332226 A CN 106332226A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
Abstract
The invention provides a cell searching method and a device for a MMC (Millimeter Wave Communication) network. The MMC network is a separate MMC network. The MMC network comprises a base station with a large-sized antenna array. One method comprises steps: in the base station, all antenna units in the large-sized antenna array are used for simultaneously generating multiple transmission beams; and through the multiple transmission beams, multiple PSSes and SSSes are simultaneously transmitted to UE in the MMC cell, wherein each PSS or SSS contains a beam index of the corresponding transmission beam.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to a kind of use
Method and apparatus in the cell searching of MMC network.
Background technology
Millimeter wave (Millimeter-Wave) refers to that frequency is in the range of 30GHz to 300GHz
Electromagnetic wave, its wavelength is 1mm-10mm, thus claim millimeter wave.Millimeter wave have wavelength short,
The advantages such as bandwidth, strong interference immunity, good confidentiality, equipment volume are little, it is possible to effectively
Solve many problems that high-speed wideband wireless access faces, thus cause and pay attention to widely.So
And, on the other hand, millimeter wave is in communication process, by the absorption of rain, air etc., and can
Serious propagation loss can be caused.
Millimetre-wave attenuator (Millimeter Wave Communication, MMC) is considered as
A kind of key technology of following 5G (the 5th generation) wireless communication field, it is contemplated that it will be supported
Gigabit (Gigabit) DBMS communication.In 5G network, it is used for supporting what data were transmitted
Many traditional schemes should be reconsidered to be suitable for new transmitting scene.
Such as, cell searching is the essential condition realizing data transmission, and it is used for realizing user
And the synchronization between network, and the system information that some are basic is passed to user.But,
The serious propagation loss of millimeter wave causes huge challenge for traditional cell search scheme,
And affect data transmission.
Summary of the invention
For problem above, the invention provides a kind of cell searching for MMC network
Method and apparatus.
According to the first aspect of the invention, it is provided that a kind of community for MMC network is searched
The method of rope, wherein said MMC network is single MMC network, described MMC net
Network includes the base station with large-scale antenna array, and described method includes, in described base station:
Utilize all antenna elements of described large-scale antenna array, produce multiple launching beam simultaneously；
By the plurality of launching beam UE in MMC community launch simultaneously multiple PSS and
SSS, comprises the wave beam rope of launching beam corresponding thereto in the most each PSS or SSS
Draw.
According to the second aspect of the invention, it is provided that a kind of community for MMC network is searched
The method of rope, wherein said MMC network is single MMC network, described MMC net
Network includes the base station with large-scale antenna array, and described method includes, in described base station:
Multiple antenna elements of described large-scale antenna array are divided into multiple antenna sets；When each
Gap, utilizes an antenna sets in the plurality of antenna sets to produce a launching beam；Pass through
Described launching beam UE in MMC community launches PSS and SSS, wherein said PSS
Or SSS comprises the beam index of described launching beam and indicates the ripple of described launching beam
The temporal information of bundle scan period.
According to the third aspect of the present invention, it is provided that a kind of community for MMC network is searched
The method of rope, wherein said MMC network is single MMC network, described MMC net
Network includes the base station with large-scale antenna array, and described method includes, in described base station:
Multiple antenna elements of described large-scale antenna array are divided into multiple antenna sets, the plurality of
Each two or more antenna sets in antenna sets constitute an antenna sets combination；When each
Gap, utilize described antenna sets combination in two or more antenna sets produce include two or
The launching beam combination of more launching beams；Little to MMC by the combination of described antenna sets
UE in district launches PSS and SSS, comprises and described in wherein said PSS or SSS
Penetrate the corresponding beam combination index of beam combination and the ripple indicating described launching beam to combine
The temporal information of bundle scan period.
According to the fourth aspect of the present invention, it is provided that a kind of community for MMC network is searched
The method of rope, wherein said MMC network is single MMC network, described MMC net
Network includes the base station with large-scale antenna array, multiple skies of described large-scale antenna array
Line unit is divided into multiple antenna sets or the combination of multiple antenna sets, and described method includes,
Described base station: receive the public RS from UE；According to described public RS, obtain described
The directional information of UE；According to the directional information of described UE, by described UE and multiple antennas
The launching beam corresponding to an antenna sets in group or in the combination of multiple antenna sets
Launching beam combination corresponding to antenna sets combination is associated；Utilize described launching beam or
The combination of described launching beam launches PSS and SSS to described UE.
According to the fifth aspect of the present invention, it is provided that a kind of community for MMC network is searched
The method of rope, wherein said MMC network and Low Frequency Network also deposit, and described method includes,
At the UE of described MMC network: set up with the base station of described Low Frequency Network and be connected；From institute
The base station stating Low Frequency Network obtains the system information of described MMC network；Utilize described MMC
The system information of network is set up with the base station of described MMC network and is connected.
In order to support MMC in 5G network, it should design new cell search scheme and both come
Support single millimeter wave network, support again the heterogeneous network that MMC with LTE community coexists.
Accompanying drawing explanation
Description by the detailed description of the invention below with reference to the present invention given by drawings below
Afterwards, it is better understood with the present invention, and other objects of the present invention, details, feature
Will become apparent from advantage.In the accompanying drawings:
Fig. 1 shows that the community for MMC network according to first embodiment of the invention is searched
The schematic diagram of Suo Fangfa；
Fig. 2 shows that the community for MMC network according to second embodiment of the invention is searched
The schematic diagram of Suo Fangfa；
Fig. 3 shows that the community for MMC network according to third embodiment of the invention is searched
The schematic diagram of Suo Fangfa；
Fig. 4 shows that the community for MMC network according to four embodiment of the invention is searched
The schematic diagram of Suo Fangfa；
Fig. 5 shows that the community for MMC network according to fifth embodiment of the invention is searched
The system schematic of Suo Fangfa；
Fig. 6 shows the flow chart of the small region search method of the embodiment shown in Fig. 5.
Detailed description of the invention
It is more fully described the preferred embodiment of the present invention below with reference to accompanying drawings.Although it is attached
Figure shows the preferred embodiment of the present invention, however, it is to be appreciated that can be with various shapes
Formula realizes the present invention and should not limited by embodiments set forth herein.On the contrary, it is provided that this
A little embodiments are to make the present invention more thorough and complete, and can be by the present invention's
What scope was complete conveys to those skilled in the art.
First, as a example by LTE network, cell search process is simply introduced.
Cell searching is exactly that subscriber equipment (UE) and network obtain time and Frequency Synchronization, and
The process of detection community ID, it generally includes following steps:
1. base station in community UE broadcast PSS (Primary Synchronization Signal,
Master sync signal) and SSS (Secondary Synchronization Signal, auxiliary synchronous signals),
After UE receives PSS and SSS, obtain physical-layer cell ID by PSS and time slot is same
Step, and obtain CP (Cyclic Prefix, Cyclic Prefix) length, physical layer by SSS
Community group ID, frame synchronization, thus set up down-going synchronous with base station.
2.UE is entered by the descending RS (Reference Signal, reference signal) from base station
One step realizes time, Frequency Synchronization and channel and estimates.
3.UE is by receiving and decoding PBCH (the Physical Broadcasting from base station
Channel, Physical Broadcast Channel), it is thus achieved that MIB (Master Information Block, main
Chunk), and by receiving and decoding PDSCH (the Physical Downlink from base station
Shared Channel, Physical Downlink Shared Channel), it is thus achieved that SIB (System Information
Block, system information block), thus obtain and carry out the configuration letter needed for Stochastic accessing with base station
Breath and system information.
For the cell searching in MMC network, it is understood that there may be two kinds of application scenarios.One
Kind be the scene only existing millimeter wave community, another kind be millimeter wave community and low frequency community (as
LTE community, LTE-A community etc.) scene that coexists.Hereinafter, both fields it are respectively directed to
Scape provides the scheme of the suggestion of the present invention.
Scene 1: only exist millimeter wave community
In such a scenario, owing to only existing single millimeter wave network, therefore propagation loss
The biggest.It has recently been demonstrated that at the cell edge that radius is 200 meter MMC communities,
Propagation loss is likely to be breached 140dB (document that sees reference [1]).Micro-with the 2.6GHz of LTE
Ripple is compared, and has extra 20dB path loss.In this case, with in LTE network
Comparing, for identical user and base station (eNB) spacing, user is at this MMC net
Network is difficulty with cell searching and is synchronized to the community searched.
In MMC, owing to the wavelength of millimeter wave is less, it is possible to realize compact sky neatly
Linear array.Therefore can use in the base station of MMC network and there is a large amount of antenna element (shake
Son) large-scale antenna array.The aerial array of emitting side can be used to form launching beam
To compensate the signal propagation losses in certain coverage.Such as, in MMC, comprise 128
The large-scale antenna array of individual antenna element can be than omnidirectional transmitter antenna many offers 21dB
Gain.
As it has been described above, launching beam can strengthen the propagation quality in certain coverage, this
Representing in the case of given launching beam, only certain customers can search successful execution community
Rope.In order to realize being completely covered of MMC community, it is proposed that following scheme.
Fig. 1 shows that the community for MMC network according to first embodiment of the invention is searched
The schematic diagram of Suo Fangfa.As shown in fig. 1, MMC network is single MMC network,
Its not with any Low Frequency Network (such as LTE or LTE-A network) depositing.At this MMC net
In network, MMC base station 10 includes the large-scale antenna array with a large amount of antenna element.This
Outward, it is assumed that base station 10 performs cell searching in cell a.
In this embodiment, all antenna elements of the large-scale antenna array of base station 10
Launch simultaneously, to produce multiple launching beam, wave beam 1 as shown in Figure 1, wave beam 2,
Wave beam 3.
It follows that base station 10 (is not shown by multiple launching beams UE in MMC community
Go out) launch PSS and SSS simultaneously.The most each PSS or SSS comprises the transmitted wave of correspondence
The beam index of bundle.
Here, reserving during beam index can be configured in known PSS or SSS form
Position, or new PSS or SSS form can be designed.
In this way, the launching beam of base station 10 covers whole MMC community simultaneously,
It is right that the UE of PSS or SSS entrained by receiving and be successfully decoded in launching beam can obtain
Other routine informations entrained in the beam index of the launching beam answered and PSS and SSS
(such as community ID etc., as previously mentioned), it is similar to lower than MMC network bands with realization
Network in the down-going synchronous of (such as 3G or 4G community).Further, UE is also by profit
Uplink is carried out to realize uplink synchronous and other functions by beam index.
In the first embodiment, base station utilizes all antenna elements of aerial array to send out simultaneously
Ejected wave bundle, thus each launching beam the widest (as shown in fig. 1) produced, and community
The coverage ultimate range of MMC base station (that is, the UE can be successfully accessed) is limited.For
Raising cell coverage area, it is proposed that beam scanning scheme, as described below.
Fig. 2 shows that the community for MMC network according to second embodiment of the invention is searched
The schematic diagram of Suo Fangfa.As shown in Figure 2, MMC network is single MMC network,
Its not with any Low Frequency Network (such as LTE or LTE-A network) depositing.At this MMC net
In network, MMC base station 10 includes the large-scale antenna array with a large amount of antenna element.This
Outward, it is assumed that base station 10 performs cell searching in cell a.
In this embodiment, multiple antenna elements of the large-scale antenna array of base station 10
Being divided into multiple antenna sets, each antenna sets can produce a launching beam, in Fig. 2
Shown wave beam 1, wave beam 2 ... wave beam N.
It follows that at each time slot, base station 10 produces a transmitted wave by an antenna sets
Bundle, and launch PSS and SSS by this launching beam UE in MMC community.Its
In this PSS or SSS comprise the beam index of launching beam of correspondence and this launching beam
The beam scanning cycle.
Here, reserving during beam index can be configured in known PSS or SSS form
Position, or new PSS or SSS form can be designed.
In this way, base station 10 is complete by perform that beam scanning achieves community
Cover.Owing in one time slot, only one of which launching beam transmits for PSS and SSS,
Therefore launching beam can provide big link budget Extended Cell coverage.
The UE receiving and being successfully decoded PSS and SSS entrained in launching beam can obtain
Take the beam index of launching beam, beam scanning cycle and other routine informations of correspondence,
To realize downlink and uplink synchronization.
In this second embodiment, cell coverage area improves, but the cell searching cycle becomes
Long.It is therefore proposed that following embodiment is to consider cell searching cycle and MPS process model
The compromise enclosed.
Fig. 3 shows that the community for MMC network according to third embodiment of the invention is searched
The schematic diagram of Suo Fangfa.As shown in Figure 3, MMC network is single MMC network,
Its not with any Low Frequency Network (such as LTE or LTE-A network) depositing.At this MMC net
In network, MMC base station 10 includes the large-scale antenna array with a large amount of antenna element.This
Outward, it is assumed that base station 10 performs cell searching in cell a.
In this embodiment, similar with the second embodiment, the extensive sky of base station 10
Multiple antenna elements of linear array are divided into multiple antenna sets, and each antenna sets can produce one
Individual launching beam, wave beam 1 as shown in Figure 3, wave beam 2 ... wave beam N.
Different from the second embodiment, by two or more antenna sets in multiple antenna sets
Constitute an antenna sets combination.
It follows that at each time slot, base station 10 produces one by an antenna sets combination and sends out
Penetrate beam combination, and launch PSS by this launching beam UE in MMC community
And SSS.The beam combination rope that the launching beam that wherein this PSS or SSS comprises correspondence combines
Regard it as and the beam scanning cycle of this launching beam combination.
Here, beam combination index can be configured in known PSS or SSS form
Reserved location, or new PSS or SSS form can be designed.
It can be seen that different from Fig. 1 and Fig. 2, in the embodiment of fig. 3, base station was both
Launch not by all antenna elements simultaneously, be not the most only to launch a wave beam, and
It it is the combination every time launching two or more wave beams.For example, it is assumed that launch two ripples every time
The combination of bundle, then base station 10 such as can (can at the first slot transmission wave beam 1 and wave beam 2
With referred to as beam combination I), (it is properly termed as ripple at the second slot transmission wave beam 3 and wave beam 4
Shu Zuhe II), the rest may be inferred.Certainly, the invention is not limited in this, but can be every
The combination of any wave beam of secondary transmitting.
In this realization, due in each time slot, several wave beam groups base station selected
Combination is transmitted for PSS and SSS, it is achieved that the community that fast cell search is become reconciled is covered
Balance between lid scope.
The UE receiving and being successfully decoded PSS and SSS entrained in launching beam can obtain
Take beam combination index, the beam scanning cycle of the launching beam combination of correspondence and other are normal
Rule information, to realize downlink and uplink synchronization.
Fig. 4 shows that the community for MMC network according to four embodiment of the invention is searched
The schematic diagram of Suo Fangfa.As shown in Figure 4, MMC network is single MMC network,
Its not with any Low Frequency Network (such as LTE or LTE-A network) depositing.At this MMC net
In network, MMC base station 10 includes the large-scale antenna array with a large amount of antenna element.This
Outward, it is assumed that base station 10 performs cell searching in cell a.
Different from the embodiment shown in Fig. 1-Fig. 3, in the embodiment of Fig. 4, community
Search for and actively initiated by UE.
First UE sends public reference signal (RS).
Base station 10, according to the public RS of UE, obtains the directional information of UE.
Here, with second and the 3rd in embodiment similar, the extensive antenna array of base station 10
Antenna element in row is divided into multiple antenna sets or antenna sets combination.
Base station can be according to the directional information of the UE obtained by UE and one of them antenna sets
Launching beam combination corresponding to corresponding launching beam or an antenna sets combination is carried out
Association, and combine transmitting PSS and SSS by this launching beam or launching beam, to enter
Row downlink and uplink synchronizes.
In this realization, as required, UE can periodically or aperiodically launch
Public reference signal, so that base station can fast Acquisition UE direction quickly associate transmitted wave
Bundle or launching beam combination, thus shorten wave beam and follow the tracks of the time and achieve low latency clothes
Business demand.
Here, for supporting UE to send the MMC network of specific public RS, the 4th
The scheme of embodiment is preferably as cell searching can be realized quickly.But,
If UE does not support the transmission of this specific public RS, the enforcement of Fig. 1-Fig. 3 can be selected
Any one in mode.It is to say, the 4th embodiment and the first to the 3rd embodiment
Can backward compatibility well.
The heterogeneous network that scene 2:MMC community and low frequency community coexist
Starting stage at 5G network, it is likely that deployment 5G community and 4G community coexist
Heterogeneous network, as shown in Figure 5.In such a scenario, owing to there is high channel quality
Low frequency community, it is therefore possible to utilize multi-link next gram with MMC community and low frequency community
Take the big propagation loss of MMC network, it is achieved quickly cell searching.
Fig. 5 shows that the community for MMC network according to fifth embodiment of the invention is searched
The system schematic of Suo Fangfa；Fig. 6 shows the cell searching of the embodiment shown in Fig. 5
The flow chart of method.Different from the embodiment shown in Fig. 1-Fig. 4, this MMC network
Single MMC network, its with Low Frequency Network (such as LTE or LTE-A network) and
Deposit.MMC network includes MMC base station 10, and Low Frequency Network includes low frequency base station 20, UE30
It is in the coverage of both MMC network and Low Frequency Network, and has and MMC net
The ability that network and this Low Frequency Network communicate.
As shown in Figure 6, in this embodiment, MMC base station 10 and low frequency base station
20 pre-build association, to share information each other.More specifically, low frequency base station 20
Obtain the system information of MMC network from MMC base station 10 and store it in low frequency base station
In 20.
Here, the system information of MMC network such as can include at least in the following
: the system bandwidth of MMC network, the frequency domain of UE and/or time-domain wave beam pattern and UE's
Low Frequency Network community recommendation information.
First, UE 30 and low frequency base station 20 perform Stochastic accessing, to set up connection.UE 30
Set up, with low frequency base station 20, the process connected similar with prior art, therefore repeat no more.
Difference is, after UE 30 is connected with low frequency base station 20 foundation, it is from low
Frequently base station 20 obtains the system information of MMC network.This system information is such as by under physics
Row is shared channel (PDSCH) and is sent to UE 30 from low frequency base station 20.
It follows that the system information that UE 30 utilizes the MMC network obtained performs and MMC
Being initially accessed of base station 10, to set up connection.
Owing to UE 30 can quickly obtain the system information of MMC network, therefore it can be fast
Speed ground performs wave beam with MMC base station and associates, thus completes cell searching.
Here, after obtaining the system information of MMC network, UE 30 and MMC base station
The access procedure of 10 is similar with Low Frequency Network (such as 4G or 3G network), the most superfluous
State.
In the scheme of scene 1, UE Yu MMC network is only capable of and performs wave beam pass in time domain
Connection.Different from scene 1, in the scheme of scene 2, UE knows MMC network in advance
System information, therefore can be carried out wave beam in frequency domain with time domain and associate, thus enter one
Step reduces access delay.
In one implementation, after UE 30 and MMC base station 10 is set up and is connected, UE 30
Still the connection with low frequency base station 20 is maintained.In this case, the control of UE 30 is permissible
Realized by low frequency base station 20, and only carry out data friendship between UE 30 and MMC base station 10
Mutually.
In another implementation, UE 30 is after being connected with MMC base station 10 foundation, no
Maintain the connection with low frequency base station 20 again.Such as, UE can only in start or just roam
Maintain the connection between low frequency base station when entering MMC network, and obtain MMC network
System information after, set up and also disconnect and low frequency base station 20 with the connection of MMC base station 10
Connection.In this case, after UE 30 and MMC base station 10 is set up and is connected,
UE 30 is controlled completely by MMC base station 10.Owing to this mode need not always to safeguard many
Connect, therefore, it is possible to save resource and the power consumption of UE of Low Frequency Network.
The invention provides and realize some solutions that 5G MMC accesses and data are transmitted,
To support all typical transmitting scenes, the scene coexisted including 4G and MMC community and
Individually dispose the scene of MMC community.
In one or more exemplary design, can use hardware, software, firmware or they
Combination in any realize function described herein.If realized with software, the most permissible
Described function is stored on a computer-readable medium as one or more instructions or code,
Or transmit as the one or more instructions on computer-readable medium or code.Calculate
Machine computer-readable recording medium includes computer-readable storage medium and communication media, and wherein communication media includes
Help computer program and be delivered to the arbitrary medium of another place from a place.Storage is situated between
Matter can be the addressable any usable medium of universal or special computer.This computer can
Read medium and can include, for example, but not limited to, RAM, ROM, EEPROM, CD-ROM
Or other optical disc memory apparatus, disk storage equipment or other magnetic storage apparatus, or available
In with universal or special computer or the addressable instruction of universal or special processor or data
Other medium any of desired code modules is carried or stored to the form of structure.And
And, arbitrarily connect computer-readable medium of can also being known as.Such as, if software is
Use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or the most infrared
The wireless technology of line, radio and microwave etc is come from website, server or other remote source
Transmission, then coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray,
The wireless technology of radio and microwave etc is also included within the definition of medium.
General processor, digital signal processor (DSP), special IC can be used
(ASIC), field programmable gate array (FPGA) or other PLD, point
Found door or transistor logic, discrete hardware components or be used for performing function as herein described
Combination in any realize or perform combining the various exemplary logical block described by the disclosure,
Module and circuit.General processor can be microprocessor, or, processor can also be
Any common processor, controller, microcontroller or state machine.Processor can also
It is embodied as the combination of calculating equipment, such as, DSP and the combination of microprocessor, multiple micro-place
Reason device, one or more microprocessor and the combination of DSP core, or other this kind any
Structure.
Those of ordinary skill in the art it is also understood that and combine what embodiments herein described
Various exemplary logical blocks, module, circuit and algorithm steps can be implemented as electronic hardware,
Computer software or combination.This in order to clearly show that between hardware and software
Interchangeability, all encloses various exemplary parts, block, module, circuit and step above
General description has been carried out around its function.It is implemented as hardware as this function still to realize
Become software, depend on specifically applying and apply design constraint over the whole system.
Those skilled in the art can realize described for every kind of application-specific in the way of flexible
Function, but, this realize decision-making and should not be interpreted as causing a departure from the scope of this disclosure.
The above description of the disclosure is for making any those of ordinary skill of this area be capable of
Or the use present invention.To those skilled in the art, the various amendments of the disclosure
Will be apparent from, and general principle defined herein can also be without departing from this
Other deformation it is applied in the case of bright spirit and scope.Therefore, the present invention is not
Be limited to example as herein described and design, but with principle disclosed herein and novel features
The widest scope consistent.
List of references:
[1].Mustafa Riza Akdeniz,Yuanpeng Liu:Millimeter Wave Channel
Modeling and Cellular Capacity Evaluation.IEEE Journal on Selected
Areas in Communications 32(6):1164-1179(2014)
Claims (14)
1. the method being used for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Base station, described method includes, in described base station:
Utilize all antenna elements of described large-scale antenna array, produce multiple transmitted wave simultaneously
Bundle；
Launch multiple PSS by the plurality of launching beam UE in MMC community simultaneously
And SSS, the most each PSS or SSS comprises the wave beam of launching beam corresponding thereto
Index.
2. the method being used for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Base station, described method includes, in described base station:
Multiple antenna elements of described large-scale antenna array are divided into multiple antenna sets；
At each time slot, an antenna sets in the plurality of antenna sets is utilized to produce a transmitting
Wave beam；
PSS and SSS is launched, wherein by described launching beam UE in MMC community
The beam index that comprises described launching beam in described PSS or SSS and indicate described transmitting
The temporal information in the beam scanning cycle of wave beam.
3. the method being used for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Base station, described method includes, in described base station:
Multiple antenna elements of described large-scale antenna array are divided into multiple antenna sets, described many
Each two or more antenna sets in individual antenna sets constitute an antenna sets combination；
At each time slot, two or more antenna sets in the combination of described antenna sets are utilized to produce
Launching beam including two or more launching beams combines；
PSS and SSS is launched by described antenna sets combination UE in MMC community, its
Described in PSS or SSS comprises the beam combination rope corresponding with the combination of described launching beam
Regard it as and indicate the temporal information in the beam scanning cycle that described launching beam combines.
4. the method being used for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Base station, multiple antenna elements of described large-scale antenna array be divided into multiple antenna sets or
Multiple antenna sets combine, and described method includes, in described base station:
Receive the public RS from UE；
According to described public RS, obtain the directional information of described UE；
According to the directional information of described UE, by described UE and a sky in multiple antenna sets
Launching beam corresponding to line group or an antenna sets in the combination of multiple antenna sets combine institute
Corresponding launching beam combination is associated；
Utilize described launching beam or described launching beam combination to described UE launch PSS and
SSS。
5. the method being used for the cell searching of MMC network, wherein said MMC net
Network and Low Frequency Network are also deposited, and described method includes, at the UE of described MMC network:
Set up with the base station of described Low Frequency Network and be connected；
The system information of described MMC network is obtained from the base station of described Low Frequency Network；
The system information of described MMC network is utilized to set up even with the base station of described MMC network
Connect.
6. method as claimed in claim 5, wherein said Low Frequency Network be LTE network or
LTE-A network.
7. method as claimed in claim 5, the system information of wherein said MMC network
Including at least one in the following: the system bandwidth of described MMC network, described UE
Frequency domain and/or the Low Frequency Network community recommendation information of time-domain wave beam pattern and described UE.
8. for a base station for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Described base station, described base station includes:
Wave beam generation unit, it is configured to, with all antennas of described large-scale antenna array
Unit, produces multiple launching beam simultaneously；
Transmitter unit, it is configured to the plurality of launching beam in MMC community
UE launches multiple PSS and SSS simultaneously, comprises corresponding thereto in the most each PSS or SSS
The beam index of the launching beam answered.
9. for a base station for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Described base station, described base station includes:
Antenna partition unit, it is configured to multiple antenna lists of described large-scale antenna array
Unit is divided into multiple antenna sets；
Wave beam generation unit, it is configured to, at each time slot, utilize in the plurality of antenna sets
Antenna sets produce a launching beam；
Transmitter unit, it is configured to described launching beam UE in MMC community
Launch PSS and SSS, wherein said PSS or SSS comprises the wave beam of described launching beam
Index and indicate the temporal information in the beam scanning cycle of described launching beam.
10. for a base station for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Described base station, described base station includes:
Antenna sets division unit, it is configured to multiple antennas of described large-scale antenna array
Unit is divided into multiple antenna sets, each two in the plurality of antenna sets or more antenna sets
Constitute an antenna sets combination；
Wave beam generation unit, it is configured at each time slot, utilizes in the combination of described antenna sets
Two or more antenna sets produce and include the launching beam of two or more launching beams
Combination；
Transmitter unit, it is configured to described antenna sets and combines in MMC community
UE launches PSS and SSS, comprises and described launching beam group in wherein said PSS or SSS
Close corresponding beam combination index and the beam scanning week indicating described launching beam to combine
The temporal information of phase.
11. 1 kinds of base stations for the cell searching of MMC network, wherein said MMC net
Network is single MMC network, and described MMC network includes having large-scale antenna array
Described base station, multiple antenna elements of described large-scale antenna array are divided into multiple antenna sets
Or multiple antenna sets combine, and described base station includes:
Receiving unit, it is configured to receive the public RS from UE；
Directional information acquiring unit, it is configured to, according to described public RS, obtain described UE
Directional information；
Associative cell, it is configured to the directional information according to described UE, by described UE with
The launching beam corresponding to an antenna sets in multiple antenna sets or the combination of multiple antenna sets
In the launching beam combination corresponding to the combination of antenna sets be associated；
Transmitter unit, it is configured to, with described launching beam or the combination of described launching beam
PSS and SSS is launched to described UE.
12. 1 kinds of UE for the cell searching of MMC network, wherein said MMC net
Network and Low Frequency Network are also deposited, and described UE includes:
Connection establishment unit, its base station foundation being configured to described Low Frequency Network is connected；With
And
Receiving unit, it is configured to obtain described MMC net from the base station of described Low Frequency Network
The system information of network；
Wherein said connection establishment unit is additionally configured to utilize the system of described MMC network
Information is set up with the base station of described MMC network and is connected.
13. UE as claimed in claim 12, wherein said Low Frequency Network is LTE network
Or LTE-A network.
14. UE as claimed in claim 12, the system information of wherein said MMC network
Including at least one in the following: the system bandwidth of described MMC network, described UE
Frequency domain and/or the Low Frequency Network community recommendation information of time-domain wave beam pattern and described UE.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510332721.7A CN106332226B (en) | 2015-06-15 | 2015-06-15 | Method and apparatus for cell search for MMC network |
| PCT/IB2016/000957 WO2016203312A2 (en) | 2015-06-15 | 2016-06-09 | Methods and apparatuses for cell searching in an mmc network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510332721.7A CN106332226B (en) | 2015-06-15 | 2015-06-15 | Method and apparatus for cell search for MMC network |
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| CN106332226B CN106332226B (en) | 2020-02-18 |
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| WO2019127495A1 (en) * | 2017-12-29 | 2019-07-04 | Oppo广东移动通信有限公司 | Signal transmission method, terminal device and network device |
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| CN108282842B (en) * | 2017-01-06 | 2021-04-13 | 中国移动通信有限公司研究院 | Method and device for accessing initial cell |
| CN106851816B (en) * | 2017-02-03 | 2020-08-14 | 宇龙计算机通信科技(深圳)有限公司 | Synchronization method, device and system |
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| CN108401283A (en) * | 2017-02-04 | 2018-08-14 | 中兴通讯股份有限公司 | Information interacting method between communication node and device |
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| CN109121152B (en) * | 2017-05-15 | 2019-09-20 | 华为技术有限公司 | A kind of communication means and device |
| WO2018232743A1 (en) * | 2017-06-23 | 2018-12-27 | Motorola Mobility Llc | System information delivery in multi-beam configuration |
| WO2019127495A1 (en) * | 2017-12-29 | 2019-07-04 | Oppo广东移动通信有限公司 | Signal transmission method, terminal device and network device |
| CN108684048A (en) * | 2018-08-16 | 2018-10-19 | 厦门美图移动科技有限公司 | A kind of wave beam management-control method, device and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016203312A2 (en) | 2016-12-22 |
| WO2016203312A3 (en) | 2017-02-09 |
| CN106332226B (en) | 2020-02-18 |
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