CN106162895A - A kind of distributed coordination method and apparatus of multi-link communication - Google Patents
A kind of distributed coordination method and apparatus of multi-link communication Download PDFInfo
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- CN106162895A CN106162895A CN201510194822.2A CN201510194822A CN106162895A CN 106162895 A CN106162895 A CN 106162895A CN 201510194822 A CN201510194822 A CN 201510194822A CN 106162895 A CN106162895 A CN 106162895A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Abstract
The present invention provides the distributed coordination method and apparatus of a kind of multi-link communication；Described method, including: main connection control point obtains each switch pattern having connected base station of same multi-link user, and the switch pattern of base station has been connected according to each, determine the described multi-link user subframe configuration information in each connection correspondence having connected base station, and notify that each has connected base station by described at each corresponding subframe configuration information that connects having connected base station.
Description
Technical field
The present invention relates to the communications field, particularly relate to distributed coordination method and the dress of a kind of multi-link communication
Put.
Background technology
The fast development of mobile Internet, Internet of Things and other service application has become as promotion the 5th
The main drive that third-generation mobile communication technology (5G) develops.They an urgent demand 5G has the optical fiber that matches in excellence or beauty
Access rate, the concatenation ability of hundred billion equipment, perfect real-time experience and the most wireless
Broadband access ability.Additionally, the important indicators such as energy consumption efficiency, spectrum efficiency and peak rate are also required to
Consider during the design of 5G system.China set up IMT-2020 (5G) propelling group and has come in 2013
Promote the development of 5G technology.According to international overall condition, it is contemplated that within 2015,5G vision, pass will be formed
Key ability need and frequency spectrum planning, will start 5G standardization effort afterwards, and start business after the year two thousand twenty
With.International standard aspect, the technical standard of LTE-Advanced is mainly in 3GPP International standardization group
Knit formulation.Industry it was initially believed that and will start towards 5G in the 3GPP R14 stage (being estimated in 2016)
Research on standard work.
In following mobile network, traffic needs can improve constantly, terminal number and kind the most continuous
Explosive growth.As one of the important scenes of 5G and technological means, inter-machine communication (MTC) and
Super-intensive network (UDN) just receives more and more attention.When existing LTE-A technology is applied to
In super-intensive network, the interference between each cell common reference signal (CRS) is along with the increase of number of cells
Increasingly severe.In order to avoid this interference, UDN it is frequently necessary to carry out the coordination switch of minizone,
I.e. close part cell base station certain period and reduce interference, and close another part in another a period of time
Cell base station.In order to coordinate and reduce the interference of each community, it is possible to use preferably return link comes in real time
Interactive service flow information, and the centralized Control of each community switch is carried out according to service traffics information.But,
Preferably return link considerably increases the lower deployment cost of return network, all in actual network design
It is difficult under all covering scene all realize ideal passback.In order in the case of return link is nonideal
Coordinate the interference between each community, through frequently with carry out by pattern community switch interference coordination pattern (with
It is referred to as down pattern switching mode), the most each community carries out the switch of cell signal according to certain pattern,
Thus reduce the interference between each community.Concrete switch pattern can be distributed unitedly by Centroid, also
Can be produced through consultation according to the disturbance regime detected by each community and its neighbor cell.Pattern enters
Each unit interval section of row community switch can be from a wireless sub-frame to multiple wireless sub-frames, whole figure
The control duration (the most whole switch pattern cycle) of sample depends on the physical length of used switch pattern,
Can be from several ms to tens, ms hundreds of, thousand of, the most longer.So, each minizone is relevant
Can carrying out according to the actual delay profiles of return link alternately of control information, and produce corresponding length
Acyclic or periodic on-off control pattern.In the present invention, carry out the list of a community switch
Bit time granularity is referred to as the unit interval section of pattern switch, and its length can be one or more subframe.Its
In, subframe lengths is 1ms in tradition LTE system, can be less than 1ms in following 5G system.
In order to simply, the present invention, in the following description with a subframe for the unit interval section that pattern switchs, locates
Subframe in open mode is referred to as ON subframe, and the subframe being closed is referred to as OFF subframe.
Although pattern switching mode can effectively carry out interference association in the case of return link is nonideal
Adjust, but limit the peak rate of user the most to a certain extent.This is because community is in a part of subframe
Being in closedown (OFF) state in Duan, user cannot utilize this part subframe to carry out data transmission.In order to
Overcoming this shortcoming, multi-link data transfer scheme of can sampling, i.e. user are simultaneously and adjacent multiple
Cell base station sets up multiple connection, uses different connections to carry out data biography in the different switch unit interval
Defeated.So, this user just can utilize all subframes to carry out data transmission, and substantially increases the peak of transmission
Value speed.Further, owing to each community of UDN uses the channel of identical frequency, this multi-link
Communication mode have only to use a set of wireless device it is achieved that do not increase the cost of user terminal,
The alien frequencies dual link scheme that this and 3GPP discuss is entirely different.Except increasing peak rate, multi-link side
Case can make user and multiple access point keep connecting, even if single wireless link interrupts suddenly, user is still
Other links so can be utilized to carry out data transmission, improve the reliability of delivery of user traffic, this for
Some needs the MTC scene of high reliable communication to be particularly useful.
But, the multi-link data transmission method discussed in the past does not consider under pattern switching mode
Concrete methods of realizing.Further, owing to user only has a set of wireless transmitting-receiving equipments, the single time can only be with one
Individual base station or transmission point (TP) carry out data communication, it is therefore desirable to each is connected to coordinate multi-link user
Operation under pattern switching mode.
Summary of the invention
The present invention provides the distributed coordination method and apparatus of a kind of multi-link communication, and technology to be solved is asked
Topic is the operation how managing multi-link user on each connects.
For solving above-mentioned technical problem, the technical scheme is that
A kind of distributed coordination method of multi-link communication, including: main connection control point obtains same company more
Connect each switch pattern having connected base station of user, and connected the switch pattern of base station according to each, determine
Described multi-link user each connected base station connect corresponding subframe configuration information, and by described often
The individual corresponding subframe configuration information that connects having connected base station notifies that each has connected base station.
Wherein, described main connection control point obtains in the following way, including:
Same multi-link user each has connected in base station and obtains other of described multi-link user and connected base station
Multi-link information；
Described at least two has connected base station according to described multi-link information, selects one of them base station as master
Connect control point.
Wherein, described multi-link information include following at least one: each connect channel quality information,
The stability information of each connecting channel has connected the characteristic information of base station with each.
Wherein, each characteristic information having connected base station described include following at least one: base station return link
Quality information, the bandwidth information of base station return link, the mobility information of base station, base station electricity letter
Breath and the disposal ability information of base station.
Wherein, described same multi-link user each has connected in base station its that obtain described multi-link user
He has connected the multi-link information of base station periodically to carry out；Or, described at least two connect
A triggering in base station.
Wherein, described at least two connect in base station and trigger the every of described same multi-link user
Individual company in base station obtains other of described multi-link user and has connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Wherein, described at least two has connected base station according to described multi-link information, selects one of them base station
As main connection control point, including:
Described at least two has connected in base station to be entered according to described multi-link information by the predetermined base station that connected
Row selects, and determines that one of them base station is as main connection control point；Or,
Described at least two has connected base station according to described multi-link information, has connected base station at each respectively and has carried out
Judgement, determines that one of them base station is as main connection control point.
Wherein, described main connection control point is by the described sub-frame configuration in each connection correspondence having connected base station
Information notifies that each has connected base station, also includes:
Described subframe configuration information is sent to described multi-link user by main connection control point.
A kind of distributed coordination method of multi-link communication, including:
The base station that connects of multi-link user obtains the multi-link user subframe configuration information in local correspondence, and
According to the subframe configuration information acquired, the business of described multi-link user is scheduling.
Wherein, the described base station that connected obtains the multi-link user subframe configuration information in local correspondence, including:
Mode one: the described base station that connected receives the subframe configuration information that main connection control point sends, and determines many
Connect user at local corresponding subframe configuration information；
Mode two: the described base station that connected obtains other of described multi-link user and connected the multi-link letter of base station
Breath, and according to described multi-link information, determine that multi-link user is at local corresponding subframe configuration information.
Wherein, described multi-link information include following at least one: each connect channel quality information,
The stability information of each connecting channel has connected the characteristic information of base station with each.
Wherein, each characteristic information having connected base station described include following at least one: base station return link
Quality information, the bandwidth information of base station return link, the mobility information of base station, base station electricity letter
Breath and the disposal ability information of base station.
Wherein, described same multi-link user each has connected in base station its that obtain described multi-link user
He has connected the multi-link information of base station periodically to carry out；Or, described at least two connect
A triggering in base station.
Wherein, described at least two connect in base station and trigger the every of described same multi-link user
Individual company in base station obtains other of described multi-link user and has connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Wherein, described method also includes:
Connect base station and local subframe configuration information has been sent to multi-link user；Or,
Connect base station to obtain each of multi-link user and connected the subframe configuration information of base station, and by each
Even the subframe configuration information of base station is sent to multi-link user.
Wherein, after sending subframe configuration information to multi-link user, described method also includes:
Connect base station and receive multi-link user's subframe distribution confirmation message.
A kind of distributed coordination device of multi-link communication, including:
First acquisition module, for obtaining each switch pattern having connected base station of same multi-link user；
Determine module, for having connected the switch pattern of base station according to each, determine that described multi-link user exists
Each subframe configuration information connecting correspondence having connected base station；
First sending module, for by the described subframe configuration information in each connection correspondence having connected base station
Notify that each has connected base station.
Wherein, described device obtains in the following way, including:
Same multi-link user each has connected in base station and obtains other of described multi-link user and connected base station
Multi-link information；
Described at least two has connected base station according to described multi-link information, selects one of them base station as master
Connect control point.
Wherein, described multi-link information include following at least one: each connect channel quality information,
The stability information of each connecting channel has connected the characteristic information of base station with each.
Wherein, each characteristic information having connected base station described include following at least one: base station return link
Quality information, the bandwidth information of base station return link, the mobility information of base station, base station electricity letter
Breath and the disposal ability information of base station.
Wherein, described same multi-link user each has connected in base station its that obtain described multi-link user
He has connected the multi-link information of base station periodically to carry out；Or, described at least two connect
A triggering in base station.
Wherein, described at least two connect in base station and trigger the every of described same multi-link user
Individual company in base station obtains other of described multi-link user and has connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Wherein, described at least two has connected base station according to described multi-link information, selects one of them base station
As main connection control point, including:
Described at least two has connected in base station to be entered according to described multi-link information by the predetermined base station that connected
Row selects, and determines that one of them base station is as main connection control point；Or,
Described at least two has connected base station according to described multi-link information, has connected base station at each respectively and has carried out
Judgement, determines that one of them base station is as main connection control point.
Wherein, described device also includes:
Second sending module, for being sent to described multi-link user by described subframe configuration information.
A kind of distributed coordination device of multi-link communication, including:
Second acquisition module, for obtaining multi-link user at local corresponding subframe configuration information；
Scheduler module, for according to the subframe configuration information the acquired business to described multi-link user
It is scheduling.
Wherein, described second acquisition module specifically for:
Receive the subframe configuration information that main connection control point sends, determine that multi-link user is in local correspondence
Subframe configuration information；Or, obtain other of described multi-link user and connect the multi-link information of base station,
And according to described multi-link information, determine that multi-link user is at local corresponding subframe configuration information.
Wherein, described multi-link information include following at least one: each connect channel quality information,
The stability information of each connecting channel has connected the characteristic information of base station with each.
Wherein, each characteristic information having connected base station described include following at least one: base station return link
Quality information, the bandwidth information of base station return link, the mobility information of base station, base station electricity letter
Breath and the disposal ability information of base station.
Wherein, described same multi-link user each has connected in base station its that obtain described multi-link user
He has connected the multi-link information of base station periodically to carry out；Or, described at least two connect
A triggering in base station.
Wherein, described at least two connect in base station and trigger the every of described same multi-link user
Individual company in base station obtains other of described multi-link user and has connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Wherein, described device also includes:
3rd sending module, for being sent to multi-link user by local subframe configuration information；Or,
Obtain each of multi-link user and connected the subframe configuration information of base station, and each has been connected the subframe of base station
Configuration information is sent to multi-link user.
Wherein, described device also includes:
Receiver module, for receiving multi-link user after sending subframe configuration information to multi-link user
Subframe distribution confirms message.
The embodiment that the present invention provides, coordinates multi-link operation under pattern switching mode, enables users to
Make full use of multiple connections that itself and multiple spot set up to communicate, improve the multi-link gain brought.Due to
Each connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can be the most sharp
The connection good with each channel quality carries out data communication, further increases the peak rate of user.
Accompanying drawing explanation
The flow chart of the distributed coordination method of the multi-link communication that Fig. 1 provides for the present invention；
The flow chart of the distributed coordination method of the another kind of multi-link communication that Fig. 2 provides for the present invention；
The schematic diagram of the super-intensive network (UDN) of the pattern switch pattern that Fig. 3 provides for the present invention；
Fig. 4 carries out the schematic diagram of multi-link communication for the user in network shown in Fig. 3 that the present invention provides；
The master-slave mode coordination approach flow embodiment of the multi-link communication that Fig. 5 provides for the present invention；
A kind of distributed coordination method flow embodiment of the multi-link communication that Fig. 6 provides for the present invention；
The another kind of distributed coordination method flow embodiment of the multi-link communication that Fig. 7 provides for the present invention；
The structure chart of the distributed coordination device of a kind of multi-link communication that Fig. 8 provides for the present invention；
The structure chart of the distributed coordination device of the another kind of multi-link communication that Fig. 9 provides for the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing and concrete
The present invention is described in further detail for embodiment.It should be noted that in the case of not conflicting,
Embodiment in the application and the feature in embodiment can mutual combination in any.
The flow chart of the distributed coordination method of the multi-link communication that Fig. 1 provides for the present invention.Shown in Fig. 1
Method, including:
Step 101, main connection control point obtain each switch figure having connected base station of same multi-link user
Sample；
Step 102, described main connection control point have connected the switch pattern of base station according to each, determine described
Multi-link user is at each subframe configuration information connecting correspondence having connected base station；
Step 103, described main connection control point are by the described subframe in each connection correspondence having connected base station
Configuration information notifies that each has connected base station.
The embodiment of the method that the present invention provides, coordinates multi-link operation under pattern switching mode, uses
Family can make full use of multiple connections that itself and multiple spot set up and communicate, and improves the multi-link gain brought.
Owing to each connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can be filled
Dividing utilizes the connection that each channel quality is good to carry out data communication, further increases the peak rate of user.
The flow chart of the distributed coordination method of the another kind of multi-link communication that Fig. 2 provides for the present invention.Figure
Method shown in 2, including:
Step 201, the multi-link user of base station acquisition that connects of multi-link user join in local corresponding subframe
Confidence ceases；
Step 202, described connect base station according to the subframe configuration information acquired to described multi-link use
The business at family is scheduling.
The embodiment of the method that the present invention provides, coordinates multi-link operation under pattern switching mode, uses
Family can make full use of multiple connections that itself and multiple spot set up and communicate, and improves the multi-link gain brought.
Owing to each connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can be filled
Dividing utilizes the connection that each channel quality is good to carry out data communication, further increases the peak rate of user.
The method provided the present invention below is described further:
Super-intensive network (the Ultra-Dense of the pattern switch pattern that Fig. 3 provides for the present invention
Network, UDN) schematic diagram.As it is shown on figure 3, along with the development of following 5G wireless network and nothing
Popularizing of line broadband application, the scene of super-intensive network (UDN) will get more and more.Wherein, grand base
Covering of standing can provide large range of wireless link support, but cause link farther out due to transmission range
Quality is affected by certain；Each little base station provides more excellent wireless link for terminal, is used for strengthening
The capacity of network.But, the densification covered along with small-cell, the distribution of little base station more crypto set and nothing
Sequence, the interference in slight interval becomes sufficiently complex, creates more edge customer, seriously limits whole
The entire throughput of individual UDN network.In order to coordinate each community in the case of return link is nonideal
Between interference, through (hereinafter referred to as scheming frequently with the interference coordination pattern carrying out community switch by pattern
Sample switching mode), the most each community carries out the switch of cell signal according to certain pattern, thus reduces
Interference between each community.The switch pattern example of each small-cell is shown on the right side of this figure.Different small-cells
Switch pattern be different, but they are to synchronize, and all by multiple unit interval section groups in time
Become.In each unit interval section, each community can determine the on off state of oneself according to pattern.Concrete
Switch pattern can be distributed unitedly by Centroid, it is also possible to by each community with its neighbor cell according to detection
To disturbance regime produce through consultation.The unit interval section carrying out community switch in pattern can be from one
1 millisecond of (ms) subframe is to the radio frames of multiple 10ms, and the control duration of whole pattern (the most whole is opened
Close the pattern cycle) depend on switching the physical length of pattern, can be from several ms to tens, hundreds of, several
Thousand ms, the most longer.So, the related control information of each minizone alternately can according to passback chain
The actual delay profiles on road is carried out, and produces the aperiodicity of corresponding length or periodic on-off control
Pattern.
Fig. 4 carries out the schematic diagram of multi-link communication for the user in network shown in Fig. 3 that the present invention provides.
As shown in Figure 4, although pattern switching mode effectively can be carried out in the case of return link is nonideal
Interference coordination, but limit the peak rate of user the most to a certain extent.This is because each community
Being in closedown (OFF) state in a part of subframe section, user cannot utilize this part subframe number
According to transmission.In order to overcome this shortcoming, can use multi-link data transfer scheme, i.e. user simultaneously
Set up multiple connection with adjacent multiple cell base stations, use different companies in the different switch unit interval
Connect and carry out data transmission.In figure, user A is simultaneously and base station 2,3,4 establishes multiple connection.Due to base
Standing 2,3,4 different at same time period on off state, user A can utilize different at different time
Connection carries out data transmission.So, this user can be carried out data transmission in all subframes, significantly
Improve the peak rate of single user transmission.In Fig. 2, user A is in subframe #1, #3, #5 and base station 2
Communication；Communicate with base station 3 in subframe #2；Communicate with base station 4 at subframe #4, #6.Further, due to
Each community of UDN uses the channel of identical frequency, the communication mode of this multi-link time-division to have only to
Use a set of wireless device it is achieved that do not increase the cost of user terminal.
Embodiment one
The master-slave mode coordination approach flow embodiment of the multi-link communication that Fig. 5 provides for the present invention.Connecting more
Connect letter master-slave mode coordination approach in, the most connected in base station have and only one of which node be main connect control
Point, other have connected base station for from connecting control point.Connecting under the pattern switching mode provided in the present invention more
The master-slave mode coordination approach connecting letter is achieved in that
Certain user of step 1 connects the mutual switch pattern the most each other in base station and multi-link relevant information；Its
In, multi-link relevant information can include following at least one: each channel quality information connected, each
The stability information of individual connecting channel has connected the characteristic information of base station with each；Wherein, described each connects
The characteristic information of base station include following at least one: the quality information of base station return link, base station passback chain
The bandwidth information on road, the mobility information of base station, the information about power of base station and the disposal ability information of base station.
Optionally, this interaction can periodically be carried out, it is also possible to is carried out by connecting the triggering of one of base station.
Optionally, change when certain switch pattern having connected base station；Or, certain has connected the feature of base station
The amplitude of variation of value exceedes the threshold value pre-set；Or, certain eigenvalue having connected base station meets in advance
During the condition arranged, trigger above-mentioned information mutual.
Step 2 has respectively connected base station, and through consultation or the selection at main connection control point has been adjudicated in this locality.Can
Choosing, can be according to information (such as each channel quality connected or channel stability mutual in step 1
Deng) be ranked up connecting base station, select optimum node as the main connection control point of multi-link user,
Other nodes are set to from connecting control point.This selection course can be stated at least two and connect in base station by advance
The base station that connects determined selects according to described multi-link information, determines that one of them base station is as main company
Connect control point；Or, described at least two has connected base station according to described multi-link information, respectively at each
Connect base station to make decisions, determined that one of them base station is as main connection control point.
Step 3 is carried out respectively according to switch pattern by main connection control point (such as Fig. 5 connect base station A)
Connect subframe distribution, i.e. determine that relevant information, in each subframe number connected, and is led to by this user attaching
Know that each has connected base station.Optionally, each connection subframe distribution is also based on above-mentioned multi-link relevant letter
Breath, including following at least one: each connect channel quality information, stability of each connecting channel
Information has connected the characteristic information of base station with each；Wherein, each characteristic information having connected base station described includes
Following at least one: the quality information of base station return link, the bandwidth information of base station return link, base station
Mobility information, the information about power of base station and the disposal ability information of base station.
The subframe configuration information that step 4 main connection control point (such as Fig. 5 connect base station A) will update
It is sent to multi-link user, in order to user carries out follow-up each communication connected according to relevant configuration information.
By subframe configuration information is sent to multi-link user, user can be facilitated to believe according to sub-frame configuration
Breath makes full use of frame resource, improves the utilization rate of resource.
In order to ensure the accurate reception of message, after sending subframe configuration information to multi-link user, institute
Method of stating also includes: has connected base station and has received multi-link user's subframe distribution confirmation message.
Concrete, connect base station and by sending " distribution of multi-link user's subframe " message, sub-frame configuration has been sent out
Give multi-link user, by judge whether to receive user feedback " distribution of multi-link user's subframe is really
Recognize " message confirms to be properly received this message.These two message can be by new Radio Resource control
System (Radio Resource Control, RRC) signaling is transmitted, it is also possible to its content be included in
Existing wireless heterogeneous networks (RRC) signaling is transmitted.
Respectively connected base station is carried out the traffic scheduling of this user to step 5 by the subframe numbers distributed.Then,
User carries out data communication by the schedule information connecting base station.
The method that the embodiment of the present invention one provides, coordinates multi-link operation under pattern switching mode, makes
User can make full use of multiple connections that itself and multiple spot set up and communicate, and improves the multi-link gain brought.
Owing to each connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can be filled
Dividing utilizes the connection that each channel quality is good to carry out data communication, further increases the peak rate of user.
Utilizing master slave mode to coordinate management, convenient management on the whole multiple has connected base station.
Embodiment two
A kind of distributed coordination method flow embodiment of the multi-link communication that Fig. 6 provides for the present invention.As
Shown in figure, in distributed coordination method, the status the most having connected base station is equality.The present invention provides
Pattern switching mode under the distributed coordination method of multi-link communication be achieved in that
Certain user of step 1 connects the mutual switch pattern the most each other in base station and multi-link relevant information；Its
In, multi-link relevant information can include following at least one: each channel quality information connected, each
The stability information of individual connecting channel has connected the characteristic information of base station with each；Wherein, described each connects
The characteristic information of base station include following at least one: the quality information of base station return link, base station passback chain
The bandwidth information on road, the mobility information of base station, the information about power of base station and the disposal ability information of base station.
Optionally, this interaction can periodically be carried out, it is also possible to is carried out by connecting the triggering of one of base station.
Optionally, change when certain switch pattern having connected base station；Or, certain has connected the feature of base station
The amplitude of variation of value exceedes the threshold value pre-set；Or, certain eigenvalue having connected base station meets in advance
During the condition arranged, trigger above-mentioned information mutual.
Step 2 each connected base station according to the information obtained alternately, directly carry out according to unified algorithm
Local subframe self-configuring.
Step 3 each connected base station the subframe configuration information of renewal be sent to multi-link user, in order to
User carries out follow-up each communication connected according to relevant configuration information.
Respectively connected base station is carried out the traffic scheduling of this user to step 4 by the subframe numbers of self-configuring.Then use
Family carries out data communication by the schedule information connecting base station.
The method that the embodiment of the present invention two provides, coordinates multi-link operation under pattern switching mode, makes
User can make full use of multiple connections that itself and multiple spot set up and communicate, and improves the multi-link gain brought.
Owing to each connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can be filled
Dividing utilizes the connection that each channel quality is good to carry out data communication, further increases the peak rate of user.
Each has connected base station self and has determined subframe configuration information, it is achieved in the coordinated management of multi-link communication.
Embodiment three
The another kind of distributed coordination method flow embodiment of the multi-link communication that Fig. 7 provides for the present invention.
Unlike embodiment two, the present embodiment be each base station by the subframe configuration information base station of decision to connecting
After the A of base station, then by connecting, base station A is unified is sent to multi-link user, wherein step 1,2 and 4
Identical with the embodiment of Fig. 5.
The method that the embodiment of the present invention three provides, coordinates multi-link operation under pattern switching mode, makes
User can make full use of multiple connections that itself and multiple spot set up and communicate, and improves the multi-link gain brought.
Owing to each connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can be filled
Dividing utilizes the connection that each channel quality is good to carry out data communication, further increases the peak rate of user.
Each has connected base station self and has determined subframe configuration information, it is achieved in the coordinated management of multi-link communication.
It should be noted that in embodiment two and embodiment three, having connected base station can also be by local son
Frame configuration information is sent to multi-link user；Or, connected base station obtain multi-link user each connect
The subframe configuration information of base station, and the subframe configuration information that each has connected base station is sent to multi-link user.
As seen from the above, subframe configuration information is sent to multi-link user, can facilitate user according to
Subframe configuration information makes full use of frame resource, improves the utilization rate of resource.
In order to ensure the accurate reception of message, after sending subframe configuration information to multi-link user, institute
Method of stating also includes:
Connect base station and receive multi-link user's subframe distribution confirmation message.
Concrete, connect base station and by sending " distribution of multi-link user's subframe " message, sub-frame configuration has been sent out
Give multi-link user, by judge whether to receive user feedback " distribution of multi-link user's subframe is really
Recognize " message confirms to be properly received this message.These two message can be by new Radio Resource control
System (Radio Resource Control, RRC) signaling is transmitted, it is also possible to its content be included in
Existing wireless heterogeneous networks (RRC) signaling is transmitted.
The structure chart of the distributed coordination device of a kind of multi-link communication that Fig. 8 provides for the present invention.Fig. 8
Shown structure, including:
First acquisition module 801, for obtaining each switch figure having connected base station of same multi-link user
Sample；
Determine module 802, for having connected the switch pattern of base station according to each, determine described multi-link use
Family is at each subframe configuration information connecting correspondence having connected base station；
First sending module 803, for by the described sub-frame configuration in each connection correspondence having connected base station
Information notifies that each has connected base station.
Wherein, described device obtains in the following way, including:
Same multi-link user each has connected in base station and obtains other of described multi-link user and connected base station
Multi-link information；
Described at least two has connected base station according to described multi-link information, selects one of them base station as master
Connect control point.
Wherein, described multi-link information include following at least one: each connect channel quality information,
The stability information of each connecting channel has connected the characteristic information of base station with each.
Wherein, each characteristic information having connected base station described include following at least one: base station return link
Quality information, the bandwidth information of base station return link, the mobility information of base station, base station electricity letter
Breath and the disposal ability information of base station.
Wherein, described same multi-link user each has connected in base station its that obtain described multi-link user
He has connected the multi-link information of base station periodically to carry out；Or, described at least two connect
A triggering in base station.
Wherein, described at least two connect in base station and trigger the every of described same multi-link user
Individual company in base station obtains other of described multi-link user and has connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Wherein, described at least two has connected base station according to described multi-link information, selects one of them base station
As main connection control point, including:
Described at least two has connected in base station to be entered according to described multi-link information by the predetermined base station that connected
Row selects, and determines that one of them base station is as main connection control point；Or,
Described at least two has connected base station according to described multi-link information, has connected base station at each respectively and has carried out
Judgement, determines that one of them base station is as main connection control point.
Wherein, described device also includes:
Second sending module, for being sent to described multi-link user by described subframe configuration information.
The device that the present invention provides, coordinates multi-link operation under pattern switching mode, enables users to fill
Divide the multiple connections utilizing itself and multiple spot to set up to communicate, improve the multi-link gain brought.Due to respectively
Individual connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can make full use of
The connection that each channel quality is good carries out data communication, further increases the peak rate of user.
The structure chart of the distributed coordination device of the another kind of multi-link communication that Fig. 9 provides for the present invention.Figure
9 shown devices include:
Second acquisition module 901, for obtaining multi-link user at local corresponding subframe configuration information；
Scheduler module 902, is used for according to the subframe configuration information acquired described multi-link user's
Business is scheduling.
Wherein, described second acquisition module specifically for:
Receive the subframe configuration information that main connection control point sends, determine that multi-link user is in local correspondence
Subframe configuration information；Or, obtain other of described multi-link user and connect the multi-link information of base station,
And according to described multi-link information, determine that multi-link user is at local corresponding subframe configuration information.
Wherein, described multi-link information include following at least one: each connect channel quality information,
The stability information of each connecting channel has connected the characteristic information of base station with each.
Wherein, each characteristic information having connected base station described include following at least one: base station return link
Quality information, the bandwidth information of base station return link, the mobility information of base station, base station electricity letter
Breath and the disposal ability information of base station.
Wherein, described same multi-link user each has connected in base station its that obtain described multi-link user
He has connected the multi-link information of base station periodically to carry out；Or, described at least two connect
A triggering in base station.
Wherein, described at least two connect in base station and trigger the every of described same multi-link user
Individual company in base station obtains other of described multi-link user and has connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Wherein, described device also includes:
3rd sending module, for being sent to multi-link user by local subframe configuration information；Or,
Obtain each of multi-link user and connected the subframe configuration information of base station, and each has been connected the subframe of base station
Configuration information is sent to multi-link user.
Wherein, described device also includes:
Receiver module, for receiving multi-link user after sending subframe configuration information to multi-link user
Subframe distribution confirms message.
The device that the present invention provides, coordinates multi-link operation under pattern switching mode, enables users to fill
Divide the multiple connections utilizing itself and multiple spot to set up to communicate, improve the multi-link gain brought.Due to respectively
Individual connection can be adjusted flexibly shared number of sub frames according to channel conditions so that single user can make full use of
The connection that each channel quality is good carries out data communication, further increases the peak rate of user.
It should be noted that Fig. 8 and Fig. 9 shown device is the device with multi-link control function.Should
The framework that controls of device multi-link communication under pattern switching mode adds in the functional entity of base station
Multi-link control module carries out the control that multi-link coordinating communication is relevant.This device is responsible for multi-link communication
Relevant Signalling exchange between scheduling controlling and the base station that with this end in view carries out.Optionally, these are many
Link control module can be independent of other control module individualisms of base station, it is also possible to be included in other
In control module.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can make to use tricks
Calculation machine program circuit realizes, and described computer program can be stored in a computer-readable recording medium,
Described computer program performs (such as system, unit, device etc.) on corresponding hardware platform,
Upon execution, including one or a combination set of the step of embodiment of the method.
Alternatively, all or part of step of above-described embodiment can also use integrated circuit to realize, this
A little steps can be fabricated to integrated circuit modules one by one respectively, or by the multiple modules in them or
Step is fabricated to single integrated circuit module and realizes.So, the present invention is not restricted to any specific hard
Part and software combine.
Each device/functional module/functional unit in above-described embodiment can use general calculating device
Realizing, they can concentrate on single calculating device, it is also possible to is distributed in multiple calculating device institutes group
On the network become.
Each device/functional module/functional unit in above-described embodiment realizes with the form of software function module
And during as independent production marketing or use, can be stored in a computer read/write memory medium.
Computer read/write memory medium mentioned above can be read only memory, disk or CD etc..
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
In this, any those familiar with the art, can be easily in the technical scope that the invention discloses
Expect change or replace, all should contain within protection scope of the present invention.Therefore, the protection of the present invention
Scope should be as the criterion with the protection domain described in claim.
Claims (32)
1. the distributed coordination method of a multi-link communication, it is characterised in that including:
Each switch pattern having connected base station of the same multi-link user of main connection control point acquisition, and according to
Each has connected the switch pattern of base station, determines that described multi-link user is in each connection correspondence having connected base station
Subframe configuration information, and by described each connected base station connect corresponding subframe configuration information notice
Each has connected base station.
Method the most according to claim 1, it is characterised in that described main connection control point is to pass through
Following manner obtains, including:
Same multi-link user each has connected in base station and obtains other of described multi-link user and connected base station
Multi-link information；
Described at least two has connected base station according to described multi-link information, selects one of them base station as master
Connect control point.
Method the most according to claim 1 and 2, it is characterised in that described multi-link information includes
Following at least one: each channel quality information connected, the stability information of each connecting channel and each
The individual characteristic information having connected base station.
Method the most according to claim 3, it is characterised in that described each has connected the feature of base station
Information include following at least one: the quality information of base station return link, base station return link bandwidth letter
Breath, the mobility information of base station, the information about power of base station and the disposal ability information of base station.
Method the most according to claim 2, it is characterised in that described same multi-link user's is every
Individual connect in base station that to obtain other multi-link information having connected base station of described multi-link user be with periodically
Carrying out；Or, described at least two connected what in base station triggered.
Method the most according to claim 5, it is characterised in that connected base station by described at least two
In one triggering described same multi-link user each company in base station obtain described multi-link user's
Other have connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
Method the most according to claim 2, it is characterised in that described at least two has connected base station root
According to described multi-link information, select one of them base station as main connection control point, including:
Described at least two has connected in base station to be entered according to described multi-link information by the predetermined base station that connected
Row selects, and determines that one of them base station is as main connection control point；Or,
Described at least two has connected base station according to described multi-link information, has connected base station at each respectively and has carried out
Judgement, determines that one of them base station is as main connection control point.
Method the most according to claim 1, it is characterised in that described main connection control point is by described
Notify that each has connected base station at each corresponding subframe configuration information that connects having connected base station, also include:
Described subframe configuration information is sent to described multi-link user by main connection control point.
9. the distributed coordination method of a multi-link communication, it is characterised in that including:
The base station that connects of multi-link user obtains the multi-link user subframe configuration information in local correspondence, and
According to the subframe configuration information acquired, the business of described multi-link user is scheduling.
Method the most according to claim 9, it is characterised in that described connected base station obtain connect more
Connect user's subframe configuration information in local correspondence, including:
Mode one: the described base station that connected receives the subframe configuration information that main connection control point sends, and determines many
Connect user at local corresponding subframe configuration information；
Mode two: the described base station that connected obtains other of described multi-link user and connected the multi-link letter of base station
Breath, and according to described multi-link information, determine that multi-link user is at local corresponding subframe configuration information.
11. according to the method described in claim 9 or 10, it is characterised in that described multi-link information bag
Include following at least one: each connect channel quality information, the stability information of each connecting channel and
Each has connected the characteristic information of base station.
12. methods according to claim 11, it is characterised in that described each has connected the spy of base station
Reference breath include following at least one: the quality information of base station return link, the bandwidth of base station return link
Information, the mobility information of base station, the information about power of base station and the disposal ability information of base station.
13. methods according to claim 10, it is characterised in that described same multi-link user's
Each connect in base station that to obtain other multi-link information having connected base station of described multi-link user be with the cycle
The carrying out of property；Or, described at least two connected what in base station triggered.
14. methods according to claim 13, it is characterised in that connected base by described at least two
The described same multi-link user of triggering stood obtains described multi-link user each company in base station
Other connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
15. methods according to claim 9, it is characterised in that described method also includes:
Connect base station and local subframe configuration information has been sent to multi-link user；Or,
Connect base station to obtain each of multi-link user and connected the subframe configuration information of base station, and by each
Even the subframe configuration information of base station is sent to multi-link user.
16. methods according to claim 15, it is characterised in that sending son to multi-link user
After frame configuration information, described method also includes:
Connect base station and receive multi-link user's subframe distribution confirmation message.
The distributed coordination device of 17. 1 kinds of multi-link communication, it is characterised in that including:
First acquisition module, for obtaining each switch pattern having connected base station of same multi-link user；
Determine module, for having connected the switch pattern of base station according to each, determine that described multi-link user exists
Each subframe configuration information connecting correspondence having connected base station；
First sending module, for by the described subframe configuration information in each connection correspondence having connected base station
Notify that each has connected base station.
18. devices according to claim 17, it is characterised in that described device is by such as lower section
Formula obtains, including:
Same multi-link user each has connected in base station and obtains other of described multi-link user and connected base station
Multi-link information；
Described at least two has connected base station according to described multi-link information, selects one of them base station as master
Connect control point.
19. according to the device described in claim 17 or 18, it is characterised in that described multi-link information
Including following at least one: each connect channel quality information, stability information of each connecting channel
The characteristic information of base station has been connected with each.
20. devices according to claim 19, it is characterised in that described each has connected the spy of base station
Reference breath include following at least one: the quality information of base station return link, the bandwidth of base station return link
Information, the mobility information of base station, the information about power of base station and the disposal ability information of base station.
21. devices according to claim 18, it is characterised in that described same multi-link user's
Each connect in base station that to obtain other multi-link information having connected base station of described multi-link user be with the cycle
The carrying out of property；Or, described at least two connected what in base station triggered.
22. devices according to claim 21, it is characterised in that connected base by described at least two
The described same multi-link user of triggering stood obtains described multi-link user each company in base station
Other connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
23. devices according to claim 18, it is characterised in that described at least two has connected base station
According to described multi-link information, select one of them base station as main connection control point, including:
Described at least two has connected in base station to be entered according to described multi-link information by the predetermined base station that connected
Row selects, and determines that one of them base station is as main connection control point；Or,
Described at least two has connected base station according to described multi-link information, has connected base station at each respectively and has carried out
Judgement, determines that one of them base station is as main connection control point.
24. devices according to claim 17, it is characterised in that described device also includes:
Second sending module, for being sent to described multi-link user by described subframe configuration information.
The distributed coordination device of 25. 1 kinds of multi-link communication, it is characterised in that including:
Second acquisition module, for obtaining multi-link user at local corresponding subframe configuration information；
Scheduler module, for according to the subframe configuration information the acquired business to described multi-link user
It is scheduling.
26. devices according to claim 25, it is characterised in that described second acquisition module is concrete
For:
Receive the subframe configuration information that main connection control point sends, determine that multi-link user is in local correspondence
Subframe configuration information；Or, obtain other of described multi-link user and connect the multi-link information of base station,
And according to described multi-link information, determine that multi-link user is at local corresponding subframe configuration information.
27. according to the device described in claim 25 or 26, it is characterised in that described multi-link information
Including following at least one: each connect channel quality information, stability information of each connecting channel
The characteristic information of base station has been connected with each.
28. devices according to claim 27, it is characterised in that described each has connected the spy of base station
Reference breath include following at least one: the quality information of base station return link, the bandwidth of base station return link
Information, the mobility information of base station, the information about power of base station and the disposal ability information of base station.
29. devices according to claim 26, it is characterised in that described same multi-link user's
Each connect in base station that to obtain other multi-link information having connected base station of described multi-link user be with the cycle
The carrying out of property；Or, described at least two connected what in base station triggered.
30. devices according to claim 29, it is characterised in that connected base by described at least two
The described same multi-link user of triggering stood obtains described multi-link user each company in base station
Other connected the multi-link information of base station, including:
Certain switch pattern having connected base station changes；Or,
The amplitude of variation of certain eigenvalue having connected base station exceedes the threshold value pre-set；Or,
Certain eigenvalue having connected base station meets the condition pre-set.
31. devices according to claim 25, it is characterised in that described device also includes:
3rd sending module, for being sent to multi-link user by local subframe configuration information；Or,
Obtain each of multi-link user and connected the subframe configuration information of base station, and each has been connected the subframe of base station
Configuration information is sent to multi-link user.
32. devices according to claim 31, it is characterised in that described device also includes:
Receiver module, for receiving multi-link user after sending subframe configuration information to multi-link user
Subframe distribution confirms message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194822.2A CN106162895A (en) | 2015-04-22 | 2015-04-22 | A kind of distributed coordination method and apparatus of multi-link communication |
| PCT/CN2015/091303 WO2016169216A1 (en) | 2015-04-22 | 2015-09-30 | Distributed coordination method and device for multi-connection communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194822.2A CN106162895A (en) | 2015-04-22 | 2015-04-22 | A kind of distributed coordination method and apparatus of multi-link communication |
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| WO (1) | WO2016169216A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018113410A1 (en) * | 2016-12-20 | 2018-06-28 | 中兴通讯股份有限公司 | Radio link management method, apparatus and system, and storage medium |
| CN109005566A (en) * | 2018-07-17 | 2018-12-14 | 北京邮电大学 | A kind of user-center multi-connection mobility design method based on anchor point |
| WO2019029664A1 (en) * | 2017-08-10 | 2019-02-14 | 中兴通讯股份有限公司 | Multi-connection communication indication method and execution method, corresponding device and system |
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| CN101877856A (en) * | 2010-07-02 | 2010-11-03 | 新邮通信设备有限公司 | Radio resource management method and system |
| WO2011025224A2 (en) * | 2009-08-26 | 2011-03-03 | Samsung Electronics Co., Ltd. | Methods and apparatus to support coordinated interference mitigation in multi-tier networks |
| CN103974389A (en) * | 2013-02-01 | 2014-08-06 | 株式会社日立制作所 | Base station in cellular network and sleep control method thereof |
| CN104080126A (en) * | 2014-07-04 | 2014-10-01 | 西安电子科技大学 | Cellular network energy saving method based on coordinated multipoint transmission |
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2015
- 2015-04-22 CN CN201510194822.2A patent/CN106162895A/en not_active Withdrawn
- 2015-09-30 WO PCT/CN2015/091303 patent/WO2016169216A1/en active Application Filing
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| WO2011025224A2 (en) * | 2009-08-26 | 2011-03-03 | Samsung Electronics Co., Ltd. | Methods and apparatus to support coordinated interference mitigation in multi-tier networks |
| CN101877856A (en) * | 2010-07-02 | 2010-11-03 | 新邮通信设备有限公司 | Radio resource management method and system |
| CN103974389A (en) * | 2013-02-01 | 2014-08-06 | 株式会社日立制作所 | Base station in cellular network and sleep control method thereof |
| CN104080126A (en) * | 2014-07-04 | 2014-10-01 | 西安电子科技大学 | Cellular network energy saving method based on coordinated multipoint transmission |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018113410A1 (en) * | 2016-12-20 | 2018-06-28 | 中兴通讯股份有限公司 | Radio link management method, apparatus and system, and storage medium |
| WO2019029664A1 (en) * | 2017-08-10 | 2019-02-14 | 中兴通讯股份有限公司 | Multi-connection communication indication method and execution method, corresponding device and system |
| CN109005566A (en) * | 2018-07-17 | 2018-12-14 | 北京邮电大学 | A kind of user-center multi-connection mobility design method based on anchor point |
| CN109005566B (en) * | 2018-07-17 | 2020-10-23 | 北京邮电大学 | Anchor point-based user-centered multi-connection mobility design method |
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| WO2016169216A1 (en) | 2016-10-27 |
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