CN107888257A - A kind of beam selection method, device and base station - Google Patents

A kind of beam selection method, device and base station Download PDF

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Publication number
CN107888257A
CN107888257A CN201610875480.5A CN201610875480A CN107888257A CN 107888257 A CN107888257 A CN 107888257A CN 201610875480 A CN201610875480 A CN 201610875480A CN 107888257 A CN107888257 A CN 107888257A
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CN
China
Prior art keywords
priority
wave beam
broadcast
α
beam
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CN201610875480.5A
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Chinese (zh)
Inventor
牛丽
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中兴通讯股份有限公司
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Priority to CN201610875480.5A priority Critical patent/CN107888257A/en
Publication of CN107888257A publication Critical patent/CN107888257A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0617Diversity 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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 using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering

Abstract

The invention discloses a kind of beam selection method, device and base station, methods described includes:In each Transmission Time Interval TTI, the priority of α wave beam corresponding to each directions of calculating cell α;Wherein, the corresponding wave beam in a direction, α all wave beams in each directions of α collectively cover whole cell, and α is positive integer;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast priority, need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to launch the priority of user data for characterizing wave beam;The priority of the α wave beam in each directions of α for calculating gained is ranked up, generates priority query;According to the priority query, N number of wave beam that current TTI launches is generated;The N is that cell is needed with caused wave beam number.

Description

A kind of beam selection method, device and base station

Technical field

The present invention relates to mobile communication technology field, beam selection method, device in espespecially a kind of multiaerial system and Base station.

Background technology

At present, mobile communications network faces the growth of terminal data portfolio expansion type, and future communication systems can reach The indexs such as superelevation speed, big handling capacity, ultrahigh reliability, ultralow time delay, can provide the user optimal experience.It is but traditional The service efficiency of below 6GHz frequency ranges is already close to theoretical limit, therefore academia and industrial quarters all think the millimeter of higher frequency section Ripple (mmWave) will be the important channel of realizing future communications.

Although high-frequency band has available large bandwidth, but, because path loss is bigger, there is area coverage in high frequency The shortcomings that small.In order to increase the area coverage of high-frequency band, multi-antenna beam figuration (beamforming) technology can be used. But because cell is limited by hardware condition, tend not to produce the multiple wave beams (beam) that can cover 360 degree simultaneously, And the subregional several beam of covering part can only be produced.

At the same time, because cell has the user of many Idle state, these users will access cell, it is necessary first to obtain Synchronizing information, read system information broadcast.But several beam can only point to several directions in synchronization caused by cell. So, in order to ensure the normal access of intra-cell users, beam needs to carry out all directions of periodic scan cell, and broadcast is same Walk information and system information.Meanwhile in a cell, the user distribution of connected state is very scattered, it should meet that the Qos of business will Ask, also to ensure that user can liberally be serviced.So, beam just needs to be user service at times.It can be seen that beam Both needed to provide access information for Idle state user, and also to provide data, services for connected state user, then just needed a kind of high Fair method is imitated to realize beam scheduling.

The content of the invention

In order to solve the above-mentioned technical problem, the invention provides a kind of beam selection method, device and base station, can both ensure User smoothly accesses cell, can also provide the user data, services in time.

In order to reach the object of the invention, the invention provides a kind of beam selection method, this method includes:

In each Transmission Time Interval (TTI), the priority of α wave beam corresponding to each directions of calculating cell α;

Wherein, the corresponding wave beam in a direction, α all wave beams in each directions of α collectively cover whole cell, α is positive integer;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast is preferential Level, need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to launch use for characterizing wave beam The priority of user data;

The priority of the α wave beam in each directions of α for calculating gained is ranked up, generates priority query;

According to the priority query, N number of wave beam that current TTI launches is generated;The N is that cell is needed with caused Wave beam number.

Optionally, the priority factors of the broadcast priority are determined by least following parameter:

TTI, and the cycle of transmitting broadcast singal.

Optionally, the priority of the α wave beam in the calculating each directions of cell α, including:

The broadcast priority of the wave beam in each direction is calculated, and corresponding priority factors are added 1;Or

The broadcast priority of the wave beam in each direction is calculated, and corresponding priority factors are added 1, and calculates each wave beam The priority of corresponding each data service, each wave beam is represented with the priority factors of the data service of limit priority Data priority the factor.

Optionally, the priority of the α wave beam in the described pair of each direction of α for calculating gained is ranked up, and generates priority Queue, including:

The broadcast priority of the wave beam in each direction is inquired about successively, if the broadcast priority of the wave beam in a direction is excellent The first level factor is equal to the cycle of transmitting broadcast singal, then the wave beam is added into priority query;

Data prioritization is carried out again to remaining wave beam, the priority is added according to the sequencing of data priority Queue.

Optionally, it is described according to the priority query, N number of wave beam of current TTI transmittings is generated, including:

From the priority query, the wave beam in N number of direction is selected according to the order of priority from high to low, and generate institute State N number of wave beam;

The factor for having launched broadcast priority corresponding to the wave beam of broadcast singal is reset.

The embodiment of the present invention additionally provides a kind of beam selection device, and the device includes:

Computing module, in each Transmission Time Interval TTI, calculating corresponding to α direction of cell the preferential of α wave beam Level;

Wherein, the corresponding wave beam in a direction, α wave beam corresponding to the α direction collectively cover whole cell, α For positive integer;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast is preferential Level, need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to launch use for characterizing wave beam The priority of user data;

Order module, for being ranked up to the priority for calculating α wave beam corresponding to α direction of gained, generation is excellent First level queue;

Generation module, for according to the priority query, generating N number of wave beam that current TTI launches;The N is cell Need with caused wave beam number.

Optionally, the priority factors of the broadcast priority are determined by least following parameter:

TTI, and the cycle of transmitting broadcast singal.

Optionally, the computing module includes:

First computing unit, the broadcast priority of the wave beam for calculating each direction, and by corresponding priority factors Add 1;Or

Second computing unit, the broadcast priority of the wave beam for calculating each direction, and by corresponding priority factors Add 1, and calculate the priority of each data service corresponding to each wave beam, with the priority of the data service of limit priority because The factor of the data priority of each wave beam described in subrepresentation.

Optionally, the order module includes:

First sequencing unit, the broadcast priority of the wave beam for inquiring about each direction successively, if the ripple in a direction The priority factors of the broadcast priority of beam are equal to the cycle of transmitting broadcast singal, then the wave beam are added into priority query;

Second sequencing unit, for carrying out data prioritization again to remaining wave beam, according to the priority of data priority Order adds the priority query.

Optionally, the generation module includes:

Wave beam generation unit, for from the priority query, N number of side to be selected according to the order of priority from high to low To wave beam, and generate N number of wave beam;

Factor zero unit, the factor for that will launch broadcast priority corresponding to the wave beam of broadcast singal are reset.

The embodiment of the present invention additionally provides a kind of base station, and the base station includes:Beam selection device described above.

Compared with prior art, present invention resides in each Transmission Time Interval TTI, α corresponding to α direction of cell is calculated The priority of individual wave beam;The corresponding wave beam in one of direction, the α wave beam in the α direction collectively cover whole cell, α is positive integer;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast is preferential Level, need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to launch use for characterizing wave beam The priority of user data;The priority of the α wave beam in α direction for calculating gained is ranked up, generates priority query;According to According to the priority query, N number of wave beam that current TTI launches is generated;The N is that cell is needed with caused wave beam number. Combination of embodiment of the present invention broadcast priority and data priority generate corresponding wave beam and launched, and are given birth to based on broadcast priority It can ensure that user smoothly accesses cell into corresponding wave beam, generating corresponding wave beam based on data priority can carry for user in time For data, services.Therefore, the embodiment of the present invention also improves data throughout while cell coverage is ensured.

Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights Specifically noted structure is realized and obtained in claim and accompanying drawing.

Brief description of the drawings

Accompanying drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this The embodiment of application is used to explain technical scheme together, does not form the limitation to technical solution of the present invention.

Fig. 1 is beam selection method schematic flow sheet described in the embodiment of the present invention;

Fig. 2 is beam selection apparatus structure schematic diagram one described in the embodiment of the present invention;

Fig. 3 is beam selection apparatus structure schematic diagram two described in the embodiment of the present invention;

Fig. 4 is beam selection apparatus structure schematic diagram three described in the embodiment of the present invention;

Fig. 5 is beam selection apparatus structure schematic diagram four described in the embodiment of the present invention.

Embodiment

For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application Feature can mutually be combined.

Can be in the computer system of such as one group computer executable instructions the flow of accompanying drawing illustrates the step of Perform.Also, although logical order is shown in flow charts, in some cases, can be with suitable different from herein Sequence performs shown or described step.

The embodiments of the invention provide a kind of beam selection method, as shown in figure 1, this method includes:

Step 101:In each Transmission Time Interval TTI, the priority of α wave beam corresponding to α direction of calculating cell;

Wherein, the corresponding wave beam in a direction, the α wave beam in the α direction collectively cover whole cell, and α is just Integer, such as:It is assumed that an overlayable angle of wave beam is θ degree, then a cell at least needs α, i.e.,:360/ θ wave beam Cover full cell;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast is preferential Level, need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to launch use for characterizing wave beam The priority of user data;

Step 102:The priority of the α wave beam in α direction for calculating gained is ranked up, generates priority query;

Step 103:According to the priority query, N number of wave beam that current TTI launches is generated;The N is that cell needs together Caused wave beam number.

Combination of embodiment of the present invention broadcast priority and data priority generate corresponding wave beam and launched, based on broadcast Priority, which generates corresponding wave beam, can ensure that user smoothly accesses cell, and generating corresponding wave beam based on data priority can be in time Provide the user data, services.Therefore, the embodiment of the present invention also improves data throughput while cell coverage is ensured Amount.

Wherein, the priority factors of the broadcast priority are determined by least following parameter:TTI, and transmitting broadcast The cycle of signal.Such as:Priority factors can be presented as the cycle of transmitting broadcast singal that the cycle of the transmitting broadcast singal can For β TTI.When the wave beam reaches the cycle of transmitting broadcast singal, illustrate that the wave beam has to be selected.

Here, the priority factors are:For characterizing the numerical value of priority, numerical value is bigger, represents that priority is higher.Such as Described above, the priority factors can be:0th, 1,2,3 (numerical value corresponding to TTI, i.e. 3ms:3) etc..

In the embodiment of the present invention, the priority of the α wave beam for calculating α direction of cell, including:

Calculate the broadcast priority of the wave beam in each direction, and corresponding priority factors are added 1 (such as:TTI+1);This Kind situation, which corresponds to wave beam, only to be needed to launch broadcast singal;Or

The broadcast priority of the wave beam in each direction is calculated, and corresponding priority factors are added 1, and calculates each wave beam Corresponding each data service priority (such as:Utilize Proportional-Fair algorithm), it is excellent with the data service of limit priority The factor of the data priority of each wave beam described in first level factor representation.Such case, which corresponds to wave beam, not only needs transmitting to broadcast Signal, it is also necessary to carry out the transmission of user data.

Wherein, the priority of the α wave beam in described pair of α direction for calculating gained is ranked up, and generates priority query, Including:

The broadcast priority of the wave beam in each direction is inquired about successively, if the broadcast priority of the wave beam in a direction is excellent The first level factor is equal to the cycle of transmitting broadcast singal, then the wave beam is added into priority query;

Data prioritization is carried out again to remaining wave beam, the priority is added according to the sequencing of data priority Queue.

That is, the broadcast priority of first poll all directions wave beam, if wave beam reaches the week of transmitting broadcast singal Phase is (such as:β TTI), then the wave beam is added into the priority query;For remaining wave beam, the priority according to data priority Sequence adds the priority query.

It is described according to the priority query in the embodiment of the present invention, N number of wave beam of current TTI transmittings is generated, including:

From the priority query, the wave beam in N number of direction is selected according to the order of priority from high to low, and generate institute State N number of wave beam;

The factor for having launched broadcast priority corresponding to the wave beam of broadcast singal is reset.

Here, because the limitation of the conditions such as hardware, the cell (base station) can only generate M wave beam simultaneously.In order to ensure Broadcast singal can be sent in time, and the cell (base station) needs to generate N number of wave beam simultaneously.So require M >=N.Wherein, N can To be determined by the shared α beam direction of the cycle β and cell of broadcast singal.Such as:N*β≥α.

Present invention also offers the device embodiment for realizing the above method, as shown in Fig. 2 the device includes:

Computing module 201, in each Transmission Time Interval TTI, calculating corresponding to α direction of cell α wave beam Priority;

Wherein, the corresponding wave beam in a direction, α wave beam corresponding to the α direction collectively cover whole cell, α For positive integer, such as:It is assumed that an overlayable angle of wave beam is θ degree, then a cell at least needs α, i.e.,:360/ θ The full cell of wave cover;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast Priority, need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to send out for characterizing wave beam Penetrate the priority of user data;

Order module 202, the priority for the α wave beam in the α direction to calculating gained are ranked up, and generation is preferential Level queue;

Generation module 203, for according to the priority query, generating N number of wave beam that current TTI launches;The N is small Area is needed with caused wave beam number.

Combination of embodiment of the present invention broadcast priority and data priority generate corresponding wave beam and launched, based on broadcast Priority, which generates corresponding wave beam, can ensure that user smoothly accesses cell, and generating corresponding wave beam based on data priority can be in time Provide the user data, services.Therefore, the embodiment of the present invention also improves data throughput while cell coverage is ensured Amount.

Wherein, the priority factors of the broadcast priority are determined by least following parameter:TTI, and transmitting broadcast The cycle of signal.Such as:Priority factors can be presented as the cycle of transmitting broadcast singal that the cycle of the transmitting broadcast singal can For β TTI.When the wave beam reaches the cycle of transmitting broadcast singal, illustrate that the wave beam has to be selected.

In one embodiment, as shown in figure 3, the computing module 201 includes:

First computing unit 2011, the broadcast priority of the wave beam for calculating each direction, and by corresponding priority The factor adds 1;Or

Second computing unit 2012, the broadcast priority of the wave beam for calculating each direction, and by corresponding priority The factor adds 1, and calculates the priority of each data service corresponding to each wave beam, preferential with the data service of limit priority The factor of the data priority of each wave beam described in level factor representation.

In the embodiment of the present invention, as shown in figure 4, the order module 202 includes:

First sequencing unit 2021, the broadcast priority of the wave beam for inquiring about each direction successively a, if direction The priority factors of broadcast priority of wave beam be equal to cycle of transmitting broadcast singal, then the wave beam is added into priority team Row;

Second sequencing unit 2022, for carrying out data prioritization again to remaining wave beam, according to data priority Sequencing adds the priority query.

In the embodiment of the present invention, as shown in figure 5, the generation module 203 includes:

Wave beam generation unit 2031, for from the priority query, N to be selected according to the order of priority from high to low The wave beam in individual direction, and generate N number of wave beam;

Factor zero unit 2032, the factor for will launch broadcast priority corresponding to the wave beam of broadcast singal are clear Zero.

Here, because the limitation of the conditions such as hardware, the cell (base station) can only generate M wave beam simultaneously.In order to ensure Broadcast singal can be sent in time, and the cell (base station) needs to generate N number of wave beam simultaneously.So require M >=N.Wherein, N can To be determined by the shared α beam direction of the cycle β and cell of broadcast singal.Such as:N*β≥α.

The embodiment of the present invention additionally provides a kind of base station, and the base station includes:Beam selection device described in Fig. 2-5.

In actual applications, each unit in beam selection device described in the embodiment of the present invention can pass through the wave beam Selection device processor in network elements realize, can also be realized by specific logic circuit;Such as in practical application In, can be by the central processing unit (CPU), microprocessor (MPU), digital signal processor positioned at the beam selection device (DSP) or field programmable gate array (FPGA) etc. is realized.

It need to be noted that be:Apparatus above implements the description of item, is similar with above method description, has same Embodiment of the method identical beneficial effect, therefore do not repeat.For the ins and outs not disclosed in apparatus of the present invention embodiment, Those skilled in the art refer to the description of above method embodiment of the present invention and follow-up concrete application embodiment and understand, To save length, repeat no more here.

With reference to concrete application embodiment, the present invention will be described in detail.

Embodiment one

In a cell, numerous antenna arrays be present, while multiple beam can be generated.

It is assumed that an overlayable angle of beam is θ degree, then a cell at least needs α beam to cover full cell, its In:

If the cycle for launching broadcast message is β TTI, to complete to broadcast in whole cell, a cell at least needs M beam is produced simultaneously, so the beam number N that cell can generate need to be less than or equal to M simultaneously, it is seen then that send broadcast singal Beam mono- be surely dispatched to, wherein,

Here, illustrate and above-mentioned expression formula is described, it is assumed that at least need 10 (α) individual wave beams to cover whole small Area, the cycle of broadcast message is 10 (β) individual TTI (1ms), is:10ms.Therefore, in order to ensure that user can smoothly access cell, So in a TTI (1ms), then 1 (M) individual wave beam is only needed to can be achieved.

So, for the beam in each direction, two kinds of priority are calculated respectively:

Broadcast priority:Represent that the beam needs to launch the priority of broadcast singal, the broadcast priority factor can be each TTI adds 1, when the broadcast priority factor is equal to β, illustrates that the beam has to be dispatched (selection), beam transmission broadcast letter Number.After obtaining scheduling, the broadcast priority factor clear 0.

Data priority:Represent that the beam needs to launch the priority of user data, the data priority factor can be according to just Calculated than fair algorithm, for the multiple services situation of multi-user on the beam be present, its data priority factor can use The priority factors of the business of limit priority replace.

Each TTI, select comprising the following steps that for beam:

The first step:Calculate each beam priority:

Each beam broadcast priority is calculated, its broadcast priority factor adds 1;

If the beam has user's access, and user has data transfer, according to Proportional-Fair algorithm, calculates each of which business Priority, and the beam data priority factor is replaced with the priority factors of the business of limit priority;

Second step:Priority ranking is carried out, generates priority query:

Poll beam broadcast priority, when its broadcast priority factor is equal to β, then the beam is added into priority Queue;

Carry out data prioritization again to remaining beam, add priority query.

3rd step:Priority query is selected, according to priority query, selects N number of beam of highest priority Direction, beam is generated, and the broadcast priority factor that will obtain the beam of selection is reset.

Embodiment two

In a cell, numerous antenna arrays be present, while multiple beam can be generated.

It is assumed that an overlayable angle of beam is θ degree, then a cell at least needs α beam to cover full cell, its In:

Assuming that there is two kinds of signals, broadcast singal 1 and broadcast singal 2 in broadcast singal.

If the cycle of transmitting broadcast message 1 be 1 TTI of β, the cycle for launching broadcast message 2 is 2 TTI of β, and β 1<β 2, then to complete to broadcast in whole cell, a cell at least needs to produce M beam simultaneously, so what cell can generate simultaneously Beam number N need to be less than or equal to M, it is seen then that and the beam mono- for sending broadcast singal is surely dispatched to, wherein:

So, for the beam in each direction, two class priority are calculated respectively:

Broadcast priority:Need to calculate the broadcast priority of two kinds of broadcast singals respectively.Broadcast is excellent corresponding to broadcast singal 1 The first level factor 1 is that each TTI adds 1, when the broadcast priority factor 1 is equal to β 1, illustrates that the beam has to be dispatched (choosing Select), launch broadcast singal 1;The broadcast priority factor 2 corresponding to broadcast singal 2 is that each TTI adds 1, when the broadcast priority factor 2 when being equal to β 2, illustrates that the beam has to be dispatched, and launches broadcast singal 2.After broadcast signal transmission, broadcast accordingly excellent The first level factor clear 0.

Data priority:The data priority factor can be calculated according to Proportional-Fair algorithm, for existing on the beam The multiple services situation of multi-user, its data priority factor are replaced using the priority factors of the business of limit priority.

Each TTI, select comprising the following steps that for beam:

The first step:Calculate each beam priority:

Each beam broadcast priority is calculated, its two kinds of broadcast priority factors add 1 respectively;

If the beam has user's access, and user has data transfer, according to Proportional-Fair algorithm, calculates each of which business Priority, then the beam data priority factor replaced with the priority factors of the business of limit priority;

Second step:Priority ranking is carried out, generates priority query:

Poll beam broadcast priority, when wherein the broadcast priority factor 1 is equal to β 1 or the broadcast priority factor 2 etc. When β 2, then the beam is added into priority query;

Carry out data prioritization again to remaining beam, add priority query.

3rd step:Priority query is selected, according to priority query, selects N number of beam of highest priority Direction, generate beam.And the broadcast singal of selection being obtained, its corresponding broadcast priority factor is reset.

Although disclosed herein embodiment as above, described content be only readily appreciate the present invention and use Embodiment, it is not limited to the present invention.Technical staff in any art of the present invention, taken off not departing from the present invention On the premise of the spirit and scope of dew, any modification and change, but the present invention can be carried out in the form and details of implementation Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.

Claims (11)

1. a kind of beam selection method, it is characterised in that this method includes:
In each Transmission Time Interval TTI, the priority of α wave beam corresponding to each directions of calculating cell α;
Wherein, the corresponding wave beam in a direction, α all wave beams in each directions of α collectively cover whole cell, and α is Positive integer;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast priority, Need to launch the priority of broadcast singal for characterizing wave beam;The data priority, need to launch user for characterizing wave beam The priority of data;
The priority of the α wave beam in each directions of α for calculating gained is ranked up, generates priority query;
According to the priority query, N number of wave beam that current TTI launches is generated;The N is that cell is needed with caused wave beam Number.
2. beam selection method according to claim 1, it is characterised in that the priority factors of the broadcast priority are led to At least following parameter is crossed to determine:
TTI, and the cycle of transmitting broadcast singal.
3. beam selection method according to claim 1 or 2, it is characterised in that the α in the calculating each directions of cell α The priority of individual wave beam, including:
The broadcast priority of the wave beam in each direction is calculated, and corresponding priority factors are added 1;Or
The broadcast priority of the wave beam in each direction is calculated, and corresponding priority factors are added 1, and it is corresponding to calculate each wave beam Each data service priority, the number of each wave beam is represented with the priority factors of the data service of limit priority According to the factor of priority.
4. beam selection method according to claim 1 or 2, it is characterised in that the described pair of each direction of α for calculating gained The priority of α wave beam be ranked up, generate priority query, including:
The broadcast priority of the wave beam in each direction is inquired about successively, if the priority of the broadcast priority of the wave beam in a direction The factor is equal to the cycle of transmitting broadcast singal, then the wave beam is added into priority query;
Data prioritization is carried out again to remaining wave beam, the priority team is added according to the sequencing of data priority Row.
5. beam selection method according to claim 1 or 2, it is characterised in that it is described according to the priority query, it is raw Into N number of wave beam of current TTI transmittings, including:
From the priority query, the wave beam in N number of direction is selected according to the order of priority from high to low, and generate the N Individual wave beam;
The factor for having launched broadcast priority corresponding to the wave beam of broadcast singal is reset.
6. a kind of beam selection device, it is characterised in that the device includes:
Computing module, in each Transmission Time Interval TTI, the priority of α wave beam corresponding to α direction of calculating cell;
Wherein, the corresponding wave beam in a direction, α wave beam corresponding to the α direction collectively cover whole cell, and α is just Integer;The priority includes broadcast priority or including broadcast priority and data priority;The broadcast priority, use Need to launch the priority of broadcast singal in characterizing wave beam;The data priority, need to launch number of users for characterizing wave beam According to priority;
Order module, for being ranked up to the priority for calculating α wave beam corresponding to α direction of gained, generate priority Queue;
Generation module, for according to the priority query, generating N number of wave beam that current TTI launches;The N needs for cell With caused wave beam number.
7. beam selection device according to claim 6, it is characterised in that the priority factors of the broadcast priority are led to At least following parameter is crossed to determine:
TTI, and the cycle of transmitting broadcast singal.
8. the beam selection device according to claim 6 or 7, it is characterised in that the computing module includes:
First computing unit, the broadcast priority of the wave beam for calculating each direction, and corresponding priority factors are added 1; Or
Second computing unit, the broadcast priority of the wave beam for calculating each direction, and corresponding priority factors are added 1, And the priority of each data service corresponding to each wave beam is calculated, with the priority factors table of the data service of limit priority Show the factor of the data priority of each wave beam.
9. the beam selection device according to claim 6 or 7, it is characterised in that the order module includes:
First sequencing unit, the broadcast priority of the wave beam for inquiring about each direction successively, if the wave beam in a direction The priority factors of broadcast priority are equal to the cycle of transmitting broadcast singal, then the wave beam are added into priority query;
Second sequencing unit, for carrying out data prioritization again to remaining wave beam, according to the sequencing of data priority Add the priority query.
10. the beam selection device according to claim 6 or 7, it is characterised in that the generation module includes:
Wave beam generation unit, for from the priority query, N number of direction to be selected according to the order of priority from high to low Wave beam, and generate N number of wave beam;
Factor zero unit, the factor for that will launch broadcast priority corresponding to the wave beam of broadcast singal are reset.
11. a kind of base station, it is characterised in that the base station includes:Beam selection dress any one of claim 6-10 Put.
CN201610875480.5A 2016-09-30 2016-09-30 A kind of beam selection method, device and base station CN107888257A (en)

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