CN105208667A - Distributed transmission dispatching system based on capacity lifting - Google Patents
Distributed transmission dispatching system based on capacity lifting Download PDFInfo
- Publication number
- CN105208667A CN105208667A CN201510616891.8A CN201510616891A CN105208667A CN 105208667 A CN105208667 A CN 105208667A CN 201510616891 A CN201510616891 A CN 201510616891A CN 105208667 A CN105208667 A CN 105208667A
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- Prior art keywords
- community
- mobile terminal
- distributed
- business
- transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Abstract
The invention discloses a distributed transmission dispatching system based on capacity lifting. Channel information of mobile terminals with the signal-to-noise ratio value higher than a responding threshold is reported in a service providing cell, channel information of mobile terminals with the disturbance level smaller than a preset value is reported in a service auxiliary cell, reverse transmission information amount can be greatly reduced under the condition that bandwidth resources are lacking and not stable, system capacity is increased, and the efficiency is improved when boundary cell users participate in distributed transmission.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of distributed transmission dispatching patcher based on capacity boost.
Background technology
Along with the sharply increase of mobile communication subscriber quantity and the rapid rise of wireless broadband business (as multimedia service), people expect that mobile communication system can provide higher data transmission rate (more than 100Mbps) and higher spectrum efficiency (more than 10bps/Hz).
It is a kind of at transmitting terminal configuration multiple antennas for entering singly to go out system more, and the intelligent antenna technology of receiving terminal configuration single antenna is a kind of effective means improving spectrum efficiency.And enter singly to go out in systematic difference in reality more, greatly influential system performance is understood in interference from same community and adjacent cell, therefore need to suppress interference, simultaneously, be in " hunger " state because border cell user usually can not get scheduling, therefore need the distributed transmission considering border cell user.
For participating in the border cell user of distributed transmission, needing real-time to provide base station reporting status information of channel to its business, and participating in the information required for multiuser distributed transmission.But for border cell user, bandwidth resources natively very lack and instability, and the amount of information of above-mentioned transmission crosses the expense that conference increases reverse link greatly, can cause the decline of real system capacity time serious.
Therefore, how rationally and the scheduling performing distributed transmission system is efficiently research contents of the present invention.
Summary of the invention
The object of the invention is to be achieved through the following technical solutions.
According to the embodiment of the present invention, a kind of distributed transmission dispatching patcher based on capacity boost is proposed, described system comprises: the service district of scheduling processing unit, multiple participation distributed transmission, be positioned at multiple mobile terminals of each service district, distributed transmission region is made up of M community, community A
minterior total mobile terminal number is K
m, m=1,2...M; Wherein,
Described scheduling processing unit determines that in distributed transmission region a service district provides community A as business
1, using other communities of providing except described business except community as business assisted cell, identifier is A
m;
Described business provides community A
1by community A
1in all K (γ
th) individual response mobile terminal, according to community A
m, the DC Vector Groups cluster Ψ of m=2...M
m{ DC
m(k) | k=1 ..., K (γ
th), m=2...M; Then by described bunch of Ψ
m{ DC
m(k) | k=1 ..., K (γ
th) be transferred to community A
m;
Described business assisted cell A
ma bunch Ψ is received for working as
m{ DC
m(k) | k=1 ..., K (γ
th) after, estimate community A
mthe most applicable distributed coding bunch Φ of middle mobile terminal k '
k' { DC
n| n=1 ..., N}, and each element DC in this bunch of statistics
nappear at Ψ
m{ DC
m(k) | k=1 ..., K (
γ th) in frequency z
n; By all z
nvalue addition obtains mobile terminal k ' and provides community A to business
1interference level L
k '; More described interference level L
k 'with preset value ε, if interference level L
k 'be less than preset value ε, Ze You community A
mto the instruction of mobile terminal k ' transmission response;
The described mobile terminal receiving described response instruction provides community reporting status information of channel to business.
According to the embodiment of the present invention, described mobile terminal comprises response terminal determining unit, imperfect applicable distributed coding (DC) vectorial acquiring unit and reports transmission unit, wherein,
Described response terminal determining unit calculation plot A
1in respective scalarization signal to noise ratio (SNR) value of all mobile terminals (mobile terminal identifier is k, k=1...K), and by described scalarization SNR and response lag γ
threlatively, determine that described scalarization SNR value is greater than response lag γ
thmobile terminal k;
The vectorial acquiring unit of described imperfect applicable distributed coding (DC) is for obtaining community A
mimperfect applicable distributed coding (DC) vectorial DC
m(k), m=2...M, k=1...K;
Described scalarization SNR value is greater than response lag γ
ththe transmission unit that reports of mobile terminal k provide community A to business
1reporting status information of channel.
According to the embodiment of the present invention, the vectorial acquiring unit of described imperfect applicable distributed coding (DC) obtains community A
mimperfect applicable distributed coding (DC) vector specifically comprise as follows:
Obtain described business and community A is provided
1mobile terminal k relative to distributed transmission community A
m, m=2...M, distributed transmission interference SNR vector
described
for:
community A
1and the channel fading coefficient matrix between mobile terminal k,
for community A
mand the channel fading coefficient matrix between mobile terminal k, w
jthat business provides community A
1the distributed coding vector used, P is average transmission power, N
0noise power, w
(i)for the arbitrary default distributed coding vector that business assisted cell adopts;
Each SNR in the distributed transmission of gained interference SNR vector is risen by value size and arranges, get front q distributed transmission and disturb the identifier of the distributed coding vector that SNR is corresponding to be that described mobile terminal k is according to community A
mdC vector.
Distributed transmission dispatching patcher based on capacity boost of the present invention, there is provided in community in business and higher than the mobile terminal of response lag, reporting channel information is carried out to snr value, in business assisted cell, reporting channel information is carried out to the mobile terminal that interference level is less than predetermined value, can when bandwidth resources lack and are unstable, greatly reduce the amount of information of reverse transfer, capacity, increases the efficiency that border cell user participates in distributed transmission.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Figure 1 show the distributed transmission dispatching patcher structural representation based on capacity boost according to embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings illustrative embodiments of the present disclosure is described in more detail.Although show illustrative embodiments of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the execution mode of setting forth here.On the contrary, provide these execution modes to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
According to the embodiment of the present invention, a kind of distributed transmission dispatching patcher based on capacity boost is proposed, as described in Figure 1, described system comprises: the service district of scheduling processing unit, multiple participation distributed transmission, be positioned at multiple mobile terminals of each service district, distributed transmission region is made up of M community, community A
minterior total mobile terminal number is K
m, m=1,2...M; Described mobile terminal comprises response terminal determining unit, imperfect applicable distributed coding (DC) vectorial acquiring unit and reports transmission unit, wherein,
Described scheduling processing unit determines that in distributed transmission region a service district provides community A as business
1, using other communities of providing except described business except community as business assisted cell, identifier is A
m; Wherein, at difference scheduling time point, elect the community in distributed transmission region as business in turn and community is provided;
Described response terminal determining unit calculation plot A
1in respective scalarization signal to noise ratio (SNR) value of all mobile terminals (mobile terminal identifier is k, k=1...K), and by described scalarization SNR and response lag γ
threlatively, determine that described scalarization SNR value is greater than response lag γ
thmobile terminal k, described γ
thget positive integer; The vectorial acquiring unit of described imperfect applicable distributed coding (DC) is for obtaining community A
mimperfect applicable distributed coding (DC) vectorial DC
m(k), m=2...M, k=1...K; Described scalarization SNR value is greater than response lag γ
ththe transmission unit that reports of mobile terminal k provide community A to business
1reporting status information of channel; Described distributed coding may be, but not limited to, Adaptive Modulation and Coding, based on coding bunch distributed coding, wave beam forming coding etc.;
Described business provides community A
1by community A
1in all K (γ
th) individual response mobile terminal, according to community A
m, the DC Vector Groups cluster Ψ of m=2...M
m{ DC
m(k) | k=1 ..., K (γ
th), m=2...M; Then by described bunch of Ψ
m{ DC
m(k) | k=1 ..., K (γ
th) be transferred to community A
m;
Described business assisted cell A
ma bunch Ψ is received for working as
m{ DC
m(k) | k=1 ..., K (γ
th) after, estimate community A
mthe most applicable distributed coding bunch Φ of middle mobile terminal k '
k '{ DC
n| n=1 ..., N}, and each element DC in this bunch of statistics
nappear at Ψ
m{ DC
m(k) | k=1 ..., K (γ
th) in frequency z
n; By all z
nvalue addition obtains mobile terminal k ' and provides community A to business
1interference level L
k '; More described interference level L
k 'with preset value ε, if interference level L
k 'be less than preset value ε, Ze You community A
mto the instruction of mobile terminal k ' transmission response;
The described transmission unit that reports receiving the mobile terminal of described response instruction provides community reporting status information of channel to business; Described channel condition information can include, but not limited to such as channel quality instruction and encoder matrix instruction etc.
According to the embodiment of the present invention, described community A
1in all K (γ
th) individual response mobile terminal is according to community A
m, the DC vector of m=2...M, gives described community A by described response mobile terminal reporting
1, and by described community A
1by described DC Vector Groups cluster Ψ
m{ DC
m(k) | k=1 ..., K (γ
th), m=2...M is transferred to community A
m;
Wherein, community A
1in all response mobile terminals, the vectorial acquiring unit of the imperfect applicable distributed coding (DC) of arbitrary response mobile terminal obtains community A
mimperfect applicable distributed coding (DC) vector specifically comprise as follows:
Obtain described business and community A is provided
1mobile terminal k relative to distributed transmission community A
m, m=2...M, distributed transmission interference SNR vector
described
for:
community A
1and the channel fading coefficient matrix between mobile terminal k,
for community A
mand the channel fading coefficient matrix between mobile terminal k, w
jthat business provides community A
1the distributed coding vector used, P is average transmission power, N
0noise power, w
(i)for the arbitrary default distributed coding vector that business assisted cell adopts;
Each SNR in the distributed transmission of gained interference SNR vector is risen by value size and arranges, get front q distributed transmission and disturb the identifier of the distributed coding vector that SNR is corresponding to be that described mobile terminal k is according to community A
mdC vector.
According to the embodiment of the present invention, described business assisted cell estimation community A
mthe most applicable distributed coding bunch Φ of middle mobile terminal k '
k '{ DC
n| n=1 ..., N} specifically comprises:
Obtain the value o (w (t-1), the w that represent non-correlation between each distributed coding vector and the distributed coding vector that uses of the last scheduling time point of mobile terminal k '
(i)); Wherein, o (w (t-1), w
(i))=| w (t-1)
hw
(i)|
2
()
hrepresent the conjugate transpose of vector, a distributed coding vector in w (t-1) to be the DC of mobile terminal at the upper time point that is scheduled, w (i) be coding bunch;
Change coding bunch in distributed coding vector, by the non-correlation value of gained by value size decline arrangement;
Get the identifier of this distributed coding vector corresponding to vectorial top n element in coding bunch as the most applicable distributed coding bunch of mobile terminal k '.
According to the embodiment of the present invention, described mobile terminal k ' provides the interference level L of community A1 to business
k 'for:
Z
nthe most applicable DC bunch Φ of mobile terminal k '
k '{ DC
n| n=1 ..., each element DC in N}
nappear at DC bunch of Ψ
m{ DC
m(k) | k=1 ..., K (γ
th) in the frequency, N is the number of the most applicable DC of mobile terminal bunch interior element.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (3)
1. the distributed transmission dispatching patcher based on capacity boost, described system comprises: the service district of scheduling processing unit, multiple participation distributed transmission, be positioned at multiple mobile terminals of each service district, distributed transmission region is made up of M community, community A
minterior total mobile terminal number is K
m, m=1,2...M; Wherein,
Described scheduling processing unit determines that in distributed transmission region a service district provides community A as business
1, using other communities of providing except described business except community as business assisted cell, identifier is A
m;
Described business provides community A
1by community A
1in all K (γ
th) individual response mobile terminal, according to community A
m, the DC Vector Groups cluster Ψ of m=2...M
m{ DC
m(k) | k=1 ..., K (γ
th), m=2...M; Then by described bunch of Ψ
m{ DC
m(k) | k=1 ..., K (γ
th) be transferred to community A
m;
Described business assisted cell A
ma bunch Ψ is received for working as
m{ DC
m(k) | k=1 ..., K (γ
th) after, estimate community A
mthe most applicable distributed coding bunch Ф of middle mobile terminal k '
k '{ DC
n| n=1 ..., N}, and each element DC in this bunch of statistics
nappear at Ψ
m{ DC
m(k) | k=1 ..., K (γ
th) in frequency z
n; By all z
nvalue addition obtains mobile terminal k ' and provides community A to business
1interference level L
k '; More described interference level L
k 'with preset value ε, if interference level L
k 'be less than preset value ε, Ze You community A
mto the instruction of mobile terminal k ' transmission response;
The described mobile terminal receiving described response instruction provides community reporting status information of channel to business.
2. a system as claimed in claim 1, described mobile terminal comprises response terminal determining unit, imperfect applicable distributed coding (DC) vectorial acquiring unit and reports transmission unit, wherein,
Described response terminal determining unit calculation plot A
1in respective scalarization signal to noise ratio (SNR) value of all mobile terminals (mobile terminal identifier is k, k=1...K), and by described scalarization SNR and response lag γ
threlatively, determine that described scalarization SNR value is greater than response lag γ
thmobile terminal k;
The vectorial acquiring unit of described imperfect applicable distributed coding (DC) is for obtaining community A
mimperfect applicable distributed coding (DC) vectorial DC
m(k), m=2...M, k=1...K;
Described scalarization SNR value is greater than response lag γ
ththe transmission unit that reports of mobile terminal k provide community A to business
1reporting status information of channel.
3. a system as claimed in claim 2, the vectorial acquiring unit of described imperfect applicable distributed coding (DC) obtains community A
mimperfect applicable distributed coding (DC) vector specifically comprise as follows:
Obtain described business and community A is provided
1mobile terminal k relative to distributed transmission community A
m, m=2...M, distributed transmission interference SNR vector
described
for:
community A
1and the channel fading coefficient matrix between mobile terminal k,
for community A
mand the channel fading coefficient matrix between mobile terminal k, w
jthat business provides community A
1the distributed coding vector used, P is average transmission power, N
0noise power, w
(i)for the arbitrary default distributed coding vector that business assisted cell adopts;
Each SNR in the distributed transmission of gained interference SNR vector is risen by value size and arranges, get front q distributed transmission and disturb the identifier of the distributed coding vector that SNR is corresponding to be that described mobile terminal k is according to community A
mdC vector.
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|---|---|---|---|
| CN201510616891.8A CN105208667B (en) | 2015-09-24 | 2015-09-24 | A kind of distributed transmission scheduling system based on capacity boost |
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| CN101800578A (en) * | 2010-01-08 | 2010-08-11 | 西安电子科技大学 | Method for reducing downlink multipoint cooperation implicate feedback overhead |
| CN102440054A (en) * | 2009-05-22 | 2012-05-02 | 高通股份有限公司 | Methods, apparatuses and computer program products for distributed scheduling to facilitate interference management |
| CN104661315A (en) * | 2013-11-25 | 2015-05-27 | 中兴通讯股份有限公司 | Method and user equipment for submitting buffering-state reports |
-
2015
- 2015-09-24 CN CN201510616891.8A patent/CN105208667B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090253429A1 (en) * | 2008-04-04 | 2009-10-08 | Samsung Electronics Co., Ltd. | Scheduling apparatus and method in a distributed antenna system |
| CN102440054A (en) * | 2009-05-22 | 2012-05-02 | 高通股份有限公司 | Methods, apparatuses and computer program products for distributed scheduling to facilitate interference management |
| CN101800578A (en) * | 2010-01-08 | 2010-08-11 | 西安电子科技大学 | Method for reducing downlink multipoint cooperation implicate feedback overhead |
| CN104661315A (en) * | 2013-11-25 | 2015-05-27 | 中兴通讯股份有限公司 | Method and user equipment for submitting buffering-state reports |
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Effective date of registration: 20180803 Address after: 210000 2, B unit 300, Zhihui Road, Kirin science and Technology Innovation Park, Jiangning District, Nanjing, Jiangsu. Applicant after: Nanjing Chu Qing Electronic Technology Co., Ltd. Address before: 063021 2, 105, luting Ting garden, East District, Kaiping, Tangshan City, Hebei, 2 Applicant before: Feng Dajiang |
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