CN104219676B - A kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio - Google Patents
A kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio Download PDFInfo
- Publication number
- CN104219676B CN104219676B CN201410425944.3A CN201410425944A CN104219676B CN 104219676 B CN104219676 B CN 104219676B CN 201410425944 A CN201410425944 A CN 201410425944A CN 104219676 B CN104219676 B CN 104219676B
- Authority
- CN
- China
- Prior art keywords
- bandwidth
- user
- cell
- cell edge
- edge user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio, with single Cell Edge User peak load amount of network, or single Cell Edge User peak throughput is that threshold value is set to A as defined in operator or industry, the one-shot change amount for being increased with step-length as defined in operator or industry or reducing bandwidth is set to B, the frequency spectrum of dynamically distributes is to be randomly assigned using the mono- RB of the 180KHz spectral bandwidths taken as granularity in whole spectral range, and bandwidth allocation is carried out in accordance with the following steps.
Description
Technical field
The present invention relates to a kind of signal communication field, dynamic frequencies of particularly a kind of TD-LTE based on single station portfolio is answered
Use method.
Background technology
Existing LTE frequency reuse plans mainly have partial frequency multiplexing (FFR), and soft-frequency reuse (SFR), and SFR is again
It is divided into basic model SFR and enhanced SFR.
1st, partial frequency multiplexing (FFR)
For LTE system, its unique OFDMA used access way so that between the user in this cell
It does not interfere with each other, and then receives for the user of cell edge and come from the stronger interference of other cells.Partial frequency multiplexing
Core concept be to treat with a certain discrimination the user in center of housing estate and cell edge, for the user of center of housing estate, due to
It is closer apart from base station distance, and channel condition is preferable, and interference to other cells itself is little, it is possible to distributed
In frequency duplex factor as one in 1 reuse set.And for the user of cell edge, its apart from the serving BS distance of itself compared with
Far, channel condition is poor, but the interference of its signal that identical frequency is in for other cells is again larger, so being distributed
Frequency duplex factor as one is on 3 channeling collection, to see Fig. 1.
Fixed frequency multiplex mode may include following two modes：
(1) 40MHz frequency spectrums are used, 4 10MHz frequency bands are divided into, such as Fig. 2 is allocated：
The actual usable spectrum of each cell is 20MHz.Continuous 20MHz bandwidth can be used in two of which cell, and (f1+f2 is small
Area, f1+f3 cells), another cell can only use 2 separation 10MHz bandwidth (f1+f4 cells), spectrum disposition mode compared with
For complexity.
(2) 20MHz frequency spectrums are used, inside is divided into 4 5MHz sub-bands, and such as Fig. 3 is allocated：
Each cell is under 20MHz frequency range, and cell edge low signal areas actual available bandwidth is 5MHz, Intra-cell
The actual usable spectrum of strong signaling zone is 10MHz.
2nd, soft-frequency reuse (SFR)
Soft-frequency reuse inherits the advantage of partial frequency multiplexing, while using dynamic frequency duplex factor as one, it is relatively brighter
The utilization ratio of frequency is improved aobviously.In soft-frequency reuse, all frequency ranges are divided into two groups of subcarriers, and one group is referred to as
Main subcarriers, another set is referred to as auxiliary subcarrier.Main subcarriers can be used from anywhere in cell, and auxiliary subcarrier then only
The heart it can be used in the cell.Main subcarriers between different districts are mutually orthogonal, and interference is restrained effectively in cell edge,
And auxiliary subcarrier disturbs smaller because only the heart is used in the cell, each other, then identical frequency can be used.
(1) basic model SFR
Under 20MHz bandwidth, 3 6.67MHz frequency bands are divided into as Main subcarriers, it is each for adjacent 3 cell edges
Use one；Each center of housing estate region uses 2/3 other frequency spectrum of this cell, such as Fig. 4 simultaneously：
In this manner, center of housing estate uses 2/3 usable spectrum, and cell edge uses 1/3 usable spectrum.
(2) enhanced SFR
Although soft-frequency reuse all there has been for the suppression of cell edge disturbed condition, and the flexible allocation of subcarrier
Certain consideration, but its mutually orthogonal Main subcarriers for distributing to different districts still can bring a certain degree of resource wave
Take, especially when the portfolio of cell edge is larger, the frequency duplex factor as one between cell can be brought to increase, the availability of frequency spectrum
The consequences such as decline.Enhanced soft-frequency reuse scheme inherits the thought of traditional soft-frequency reuse, and carries out on its basis
Improve, the problem of essentially consisting in the wasting of resources that improves and may be brought when portfolio changes.
Under 20MHz frequency spectrums, 3 frequency bands are divided into as Main subcarriers, while 20MHz frequency bands only exist as auxiliary subcarrier
Center of housing estate is used, such as Fig. 5.
Not only f2, f3, f4 occupied bandwidth are dynamically adjusted according to the portfolio of each cell edge region, big according to portfolio
Small, each center of housing estate region usable spectrum also can reach as 20MHz.
Modified SFR uses dynamic configuration mode, it is to be understood that the load information of peripheral cell, therefore need to be (small with ICIC
Interval interference coordination) technology uses cooperatively, and can be only achieved good effect.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention are that the actual conditions for being directed to deployment of LTE network need to use
Dynamic frequency allocation scheme, but existing enhanced SFR too complex is, it is necessary to which coordination between base station, has been significantly greatly increased base station day
The complexity of line and the amount of calculation of scheduler, it is therefore desirable to which reasonable coordination spectrum efficiency and implementation complexity, proposition can roots
According to network actual conditions dynamically adjustment frequency spectrum, implementation complexity again relatively simple frequency reuse plan technical problem there is provided
A kind of dynamic frequency multiplexing methods of TD-LTE based on single station portfolio.
In order to solve the above-mentioned technical problem, answered the invention discloses a kind of dynamic frequencies of TD-LTE based on single station portfolio
With method, with single Cell Edge User peak load amount of network, or as defined in operator or industry, single cell edge is used
Family peak throughput is that threshold value is set to A, the edge customer and central user of cell is identified, with as defined in operator or industry
Step-length is set to B to increase or reduce the one-shot change amount of bandwidth, is that Cell Center User distributes all bandwidth, is cell edge
The a width of granularity of band that user is taken with the single resource blocks of 180KHz is randomly assigned initial bandwidth in the range of whole spectral bandwidth,
Bandwidth allocation is carried out in accordance with the following steps：
The a width of B of band of original allocation cell edge region user, increases bandwidth newly successively after handling capacity meets following condition
B：
Edge user throughput=A* η * (B*I/N),
Wherein I, which represents ith, increases the coefficient of determination of bandwidth, I=N/B, and I spans are that 2~10, N represents maximum belt
Width, it is to increase the coefficient of determination of bandwidth for the first time that i, which is initially 1, i=1, and the common 2B bandwidth of Cell Edge User after increase, i is from 1
The integer of beginning, is (N-B)/B to the maximum；η is stressor, i.e., load reaches the peak throughput certain percentage of current bandwidth
Afterwards, system increases B bandwidth, η spans 0.4~0.7 newly to the cell；
As edge user throughput=A* η * ((N-B)/N), the whole maximum bandwidth N of distribution；
Wherein (N-B)/N represents the bandwidth ratio taken in a stage；
When edge user throughput is reduced to less than equal to A* η * (B*J/N), reduce after B bandwidth, edge customer is gathered around altogether
There is bandwidth J*B.
Wherein J represents the coefficient of determination that jth time reduces bandwidth, J=N/B, and J spans are 2~10.
Integral multiples of the N as B is set in the present invention.
Resource block ResourceBlock, abbreviation RB.
The principle of the invention is：Base station section center (this cell signal is preferable, to the less region of other area interferences)
All frequency spectrums of user are distributed to, to increase sector entire throughput.In base station section fringe region (this cell signal is poor,
The region serious to other area interferences) frequency spectrum, the portion of dynamically distributes are dynamically adjusted according to the total business volume size of edge customer
Frequency dividing spectrum is to be randomly assigned with 180KHz (spectral bandwidth that single RB takes) for granularity in whole spectral range, with less
Realize that cost reduces inter-cell interference.So that network distributes more frequency spectrum in the case where business demand is higher, Gao Ye is lifted
The peak throughput of business amount demand cell, lifting user perceives；In network in the case where business demand is less, distribute less
Frequency spectrum, reduces the interference to other cells.
Beneficial effect：1st, dynamic adjustment frequency spectrum
This programme can dynamically adjust frequency spectrum according to the total business volume of base station section fringe region so that network is needed in business
Ask it is higher in the case of distribute more frequency spectrum, lift the peak throughput of heavy traffic demand cell, lifting user perceives；
Network distributes less frequency spectrum in the case where business demand is less, reduces the interference to other cells.
2nd, adjustment frequency spectrum is randomly assigned
It with 180KHz (single RB take spectral bandwidth) is granularity in whole frequency spectrum model that the partial frequency spectrum of dynamically distributes, which is,
It is randomly assigned in enclosing, realizes that cost reduces inter-cell interference with less.
3rd, implementation complexity is low
Compared with enhanced SFR needs many base station Coordination Treatments, this programme only needs to consider the traffic needs of this cell,
Without the concern for the network condition of adjacent cell, therefore this programme implementation complexity is relatively low, and the change to network is less.
4th, network capacity is improved
The cell of each in this programme can consider cell business volume demand, divide as far as possible in the high cell of traffic needs
With more frequency spectrums, to meet user's request, therefore whole net network capacity can be greatly improved, lifting user perceives.
5th, existing network strong applicability
This programme is realized simply, is properly applied to any region of existing network, be particularly suitable for use in the base station station such as CBD/ dense cities
Spacing is smaller, serious interference region.It can be very good to solve to improve the contradiction between spectrum efficiency and reduction implementation complexity.
6th, network O＆M is convenient
This programme realizes that simply each base station only needs to collect, monitor between this intra-cell traffic, base station and need not assisted
Together, any parameter need not be changed under the network change conditions such as newly-increased base station, resettlement base station, network O＆M is very convenient.
Brief description of the drawings
The present invention is done with reference to the accompanying drawings and detailed description and further illustrated, of the invention is above-mentioned
And/or otherwise advantage will become apparent.
Fig. 1 is prior art partial frequency multiplexing schematic diagram.
Fig. 2 is the schematic diagram of prior art partial frequency multiplexing dividing mode one.
Fig. 3 is the schematic diagram of prior art partial frequency multiplexing dividing mode two.
Fig. 4 is prior art basic model soft-frequency reuse schematic diagram.
Fig. 5 is the enhanced soft-frequency reuse schematic diagram of prior art.
Fig. 6 is the flow chart of the inventive method
Fig. 7 is dynamic frequency multiplexing scheme (omni-base station) schematic diagram of the invention based on single BTS service amount.
Fig. 8 is dynamic frequency multiplexing scheme (three sector base stations) schematic diagram of the invention based on single BTS service amount.
Fig. 9 is the dynamic frequency multiplexing method schematic diagram based on single BTS service amount.
Embodiment
The invention discloses a kind of dynamic frequency multiplexing methods of TD-LTE based on single station portfolio, it is contemplated that network list carrier frequency
With a width of N, cell structure can be omni-base station or three sector base stations, and schematic diagram 7 and Fig. 8 are seen respectively.
Center of housing estate and cell edge confining method：The near point generally acknowledged using industry, midpoint, the far point index in far point as
The threshold value of cell edge, or the RS-SINR/RSRP numerical value specified using operator, as threshold value M, signal index is less than door
The region of limit value is cell edge.When user's index of correlation changes, (central user index refers to more than threshold value/edge customer
Mark is less than threshold value), lag time T1 need to be passed through, user's index is remained at after change in scope within the T1 times, system
User property is accordingly changed.
The calculating and definition of portfolio：With single Cell Edge User peak load amount of network, or operator/industry rule
Fixed single Cell Edge User peak throughput is that threshold value is set to A, increased with suitable step-length as defined in operator/industry/
The one-shot change amount for reducing bandwidth is set to B (it is recommended that N is B integral multiple), and bandwidth allocation formula is as follows：
The a width of B of band of system original allocation fringe region user, bandwidth B is with 180KHz (spectral bandwidth that single RB takes)
It is randomly assigned for granularity in whole spectral range, increase bandwidth B newly successively after handling capacity meets following condition：
As edge user throughput=A* η * (B*I/N)
Wherein I, which represents ith, increases the coefficient of determination (I=N/B, it is proposed that span is 2-10) of bandwidth, is initially 1,
I=1 is to increase the coefficient of determination of bandwidth for the first time, increases the common 2B bandwidth of back edge user, i is integer, since 1, is to the maximum
(N-B)/B；
η is stressor, i.e., load is reached after the peak throughput certain percentage of current bandwidth, and system gives the cell
Newly-increased B bandwidth, it is proposed that span 0.4-0.7.
As edge user throughput=A* η * ((N-B)/N), whole N bandwidth is distributed；
Wherein (N-B)/N represents the bandwidth ratio taken in a stage；
When edge user throughput is reduced, decision threshold is same as above.When being less than A* η * (B*J/N), B bandwidth is reduced
Afterwards, bandwidth J*B is possessed altogether.Wherein J represents the coefficient of determination (J=N/B, it is proposed that span is 2-10) that jth time reduces bandwidth.
, it is necessary to by lag time T2, be handled up in T2 time inward flange zone users after handling capacity meets correlated condition
Amount demand is met after correlated condition all the time, and system is that fringe region user increases/reduced B bandwidth.
System processing unit：I.e. TD-LTE system is used for distributing the system module of bandwidth, Ke Yi for fringe region user
Increase corresponding module in base station newly, can also be integrated in BBU equipment.
Scheme running：During initial launch, system processing unit determines center of housing estate according to cell edge confining method
User and Cell Edge User, whole N bandwidth is distributed to Cell Center User, and Cell Edge User is randomly assigned B bandwidth.When small
When area edge user's aggregate demand bandwidth is continued above A* η * (B/N) within the T2 times, system processing unit is to Cell Edge User
It is randomly assigned 2B bandwidth；When Cell Edge User aggregate demand bandwidth is continued above A* η * (B*I/N) within the T2 times, at system
Reason unit is randomly assigned B* (1+i) bandwidth to Cell Edge User；By that analogy until system processing unit is used to cell edge
Whole N bandwidth is distributed at family.When Cell Edge User aggregate demand bandwidth is consistently less than A* η * (B*I/N) within the T2 times, system
Processing unit distributes B*I bandwidth to Cell Edge User.When certain Cell Edge User, RS-SINR/RSRP continues within the T1 times
During more than M, the user property is changed into Cell Center User by system, is always user distribution whole N bandwidth, central area is used
It is similar that family becomes cell edge user procedures.
Embodiment
The present invention distributes to use base station section center (this cell signal is preferable, to the less region of other area interferences)
All frequency spectrums in family, to increase sector entire throughput.In base station section, (this cell signal is poor, to other small for fringe region
The region of area's serious interference) frequency spectrum is dynamically adjusted according to the total business volume size of edge customer, the partial frequency spectrum of dynamically distributes is
It is randomly assigned with 180KHz (spectral bandwidth that single RB takes) for granularity in whole spectral range, cost is realized with less
Reduce inter-cell interference.So that network distributes more frequency spectrum in the case where business demand is higher, heavy traffic demand is lifted
The peak throughput of cell, lifting user perceives；In network in the case where business demand is less, less frequency spectrum is distributed, is subtracted
Few interference to other cells.
Assuming that all base stations of certain operator TD-LTE networks use three sector mode networkings, its spectral bandwidth is 20MHz；With
The threshold value that RS-SINR=0dB is defined as Cell Edge User；Lag time T1 is 5 seconds；Single Cell Edge User peak value is gulped down
The amount of telling is that threshold value A is 10Mbps；The step-length of increase/reduction bandwidth is 5MHz；Stressor η is 0.5；Lag time T2 is 10
Second；System processing unit is integrated in BBU.
Scheme running is as follows, with reference to Fig. 9：
During initial launch, BBU distributes 20MHz bandwidth, Cell Edge User to Cell Center User (RS-SINR >=0dB)
(RS-SINR<0dB) it is randomly assigned 5MHz bandwidth；
When Cell Edge User aggregate demand is continued above 1.25Mbps in 10s, BBU is distributed to Cell Edge User
10MHz bandwidth；
When Cell Edge User aggregate demand is continued above 2.5Mbps in 10s, BBU is distributed to Cell Edge User
15MHz bandwidth；
When Cell Edge User aggregate demand is continued above 3.75Mbps in 10s, BBU is distributed to Cell Edge User
20MHz bandwidth；
When Cell Edge User aggregate demand is consistently less than 5* (I/4) Mbps in 10s, BBU is to Cell Edge User
Distribute 5*IMHz bandwidth；
When the RS-SINR values of certain Cell Edge User are persistently more than 0dB in 5s, the user property is changed into small by BBU
District center user, is always user distribution 20MHz bandwidth；
When the user property is changed into cell by the RS-SINR values of certain Cell Center User in 5s continuously less than 0dB, BBU
Edge customer, according to circumstances distributes 5*IMHz bandwidth for the user.
Existing related soft-frequency reuse algorithm is all complex, it is necessary to which coordination between base station, has been significantly greatly increased antenna for base station
Complexity and scheduler amount of calculation, enforcement difficulty is larger, therefore existing network not yet scale uses soft-frequency reuse technology.This
Inventive method realizes that cost reduces the interference of minizone using technology is randomly assigned with less.
Verified by simulation calculating, after the present embodiment dynamic frequency multiplexing method, Cell Edge User average throughput
Amount improves 24.7% than not using during channeling, the RS-SINR average values of Cell Edge User improve 3.7dB.
In Fig. 9 under 20MHz frequency spectrums, dividing 20MHz frequency bands as auxiliary subcarrier, only the heart is used in the cell, is divided simultaneously
Variable 0-20MHz frequency bands are Anywhere used as Main subcarriers in cell.
F2 occupied bandwidth is dynamically adjusted according to the total business volume demand of each base station section fringe region, and portfolio is higher,
F2 occupied bandwidth is bigger, the f2 bandwidth dynamically distributes in 20MHz bandwidth, and the step-length of each dynamically distributes increase/reduction is
5MHz, the bandwidth of dynamically distributes is divided at random in whole spectral range using the spectral bandwidth of the mono- RB occupancy of 180KHz as granularity
Match somebody with somebody, f2 adaptive-bandwidth scope is 0-20MHz.
The invention provides a kind of dynamic frequency multiplexing methods of TD-LTE based on single station portfolio, the technology is implemented
The method and approach of scheme are a lot, and described above is only the preferred embodiment of the present invention, it is noted that for the art
Those of ordinary skill for, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.Each part being not known in the present embodiment can use prior art to add
To realize.
Claims (2)
1. a kind of dynamic frequency multiplexing methods of TD-LTE based on single station portfolio, it is characterised in that the RS- specified with operator
SINR/RSRP numerical value identifies Cell Edge User and Cell Center User as threshold value M；With as defined in operator or industry
Step-length is set to B to increase or reduce the one-shot change amount of bandwidth；All bandwidth are distributed for Cell Center User, are cell edge
The a width of granularity of band that user is taken with the single resource blocks of 180KHz is randomly assigned initial bandwidth in the range of whole spectral bandwidth,
Specifically bandwidth allocation is carried out in accordance with the following steps：
The a width of B of band of original allocation cell edge region user, increases bandwidth B newly successively after handling capacity meets following condition：Side
Edge user throughput=A* η * (B*I/N),
Wherein A represents that single Cell Edge User peak throughput is threshold value, and I, which represents ith, increases the coefficient of determination of bandwidth, I
=N/B, I span are that 2~10, N represents maximum bandwidth, and it is to increase the coefficient of determination of bandwidth for the first time that i, which is initially 1, i=1,
The common 2B bandwidth of Cell Edge User after increase, i is the integer since 1, is (N-B)/B to the maximum；η is stressor, i.e. load
After the peak throughput certain percentage for reaching current bandwidth, bandwidth of the system to the newly-increased B of the cell, η spans 0.4~
0.7；
As edge user throughput=A* η * ((N-B)/N), the whole maximum bandwidth N of distribution；
Wherein (N-B)/N represents the bandwidth ratio taken in a stage；
When edge user throughput is reduced to less than equal to A* η * (B*J/N), reduce after B bandwidth, edge customer possesses band altogether
Wide J*B；
Wherein J represents the coefficient of determination that jth time reduces bandwidth, J=N/B, and J spans are 2~10.
2. a kind of dynamic frequency multiplexing methods of the TD-LTE according to claim 1 based on single station portfolio, its feature exists
In setting integral multiples of the N as B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425944.3A CN104219676B (en) | 2014-08-26 | 2014-08-26 | A kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425944.3A CN104219676B (en) | 2014-08-26 | 2014-08-26 | A kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104219676A CN104219676A (en) | 2014-12-17 |
| CN104219676B true CN104219676B (en) | 2017-10-10 |
Family
ID=52100734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410425944.3A Active CN104219676B (en) | 2014-08-26 | 2014-08-26 | A kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104219676B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107277924A (en) * | 2017-04-24 | 2017-10-20 | 江苏省邮电规划设计院有限责任公司 | Dynamic frequency multiplexing method based on type of service in a kind of LTE system |
| CN109068388B (en) * | 2018-07-10 | 2022-12-16 | 中通服咨询设计研究院有限公司 | Dynamic frequency reuse method for 5G network based on four-color theorem |
| CN110809272A (en) * | 2019-09-29 | 2020-02-18 | 中通服咨询设计研究院有限公司 | 5G interference-based macro-micro base station cooperative frequency reuse method |
| CN112714474B (en) * | 2019-10-25 | 2023-04-07 | 中国移动通信集团浙江有限公司 | Transmission bandwidth setting method and device and computing equipment |
| CN111542067B (en) * | 2020-05-09 | 2022-11-29 | 中通服咨询设计研究院有限公司 | Interference back-off method based on service type in 5G network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101500237A (en) * | 2008-02-02 | 2009-08-05 | 夏普株式会社 | Dynamic interference coordination method and base station |
| CN101674680A (en) * | 2008-09-10 | 2010-03-17 | 华为技术有限公司 | Method and device for allocating bands and base station |
| EP2587855A1 (en) * | 2010-07-15 | 2013-05-01 | Huawei Technologies Co., Ltd. | Method and base station for adjusting carrier resources dynamically |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2630837B1 (en) * | 2010-10-21 | 2018-07-18 | Telefonaktiebolaget LM Ericsson (publ) | Spectrum sharing in multi-rat radio base stations |
-
2014
- 2014-08-26 CN CN201410425944.3A patent/CN104219676B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101500237A (en) * | 2008-02-02 | 2009-08-05 | 夏普株式会社 | Dynamic interference coordination method and base station |
| CN101674680A (en) * | 2008-09-10 | 2010-03-17 | 华为技术有限公司 | Method and device for allocating bands and base station |
| EP2587855A1 (en) * | 2010-07-15 | 2013-05-01 | Huawei Technologies Co., Ltd. | Method and base station for adjusting carrier resources dynamically |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104219676A (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104219676B (en) | A kind of dynamic frequency multiplexing methods of TD LTE based on single station portfolio | |
| US10321325B2 (en) | Inter-network shared frequency spectrum optimization system and method | |
| CN105101421B (en) | Resource allocation methods and resource allocation device | |
| CN103634799B (en) | Cognitive radio system-based spectrum allocation method and equipment | |
| CN102711179B (en) | Multi-service dynamic bandwidth distribution method under heterogeneous wireless network environment | |
| CN103338455B (en) | Communication resource allocation method, system, terminal and network side equipment | |
| CN101917727B (en) | LTE (Long Term Evolution) system interference coordination method | |
| CN102932796A (en) | Dynamic spectrum distribution method based on covering frequency in heterogeneous wireless network | |
| Tang et al. | Opportunistic power allocation strategies and fair subcarrier allocation in OFDM-based cognitive radio networks | |
| Li et al. | Aggregation-based spectrum allocation algorithm in cognitive radio networks | |
| CN110248366B (en) | LTE network dynamic frequency reuse method based on terminal moving speed | |
| CN102647721A (en) | Method for aggregating static spectrums in cognitive radio | |
| CN107277924A (en) | Dynamic frequency multiplexing method based on type of service in a kind of LTE system | |
| EP2887749B1 (en) | Resource allocation method and base station | |
| CN109673054A (en) | Frequency allocation method and system | |
| CN103428702A (en) | Resource allocation method for controlling inter-cell interference | |
| CN109068388B (en) | Dynamic frequency reuse method for 5G network based on four-color theorem | |
| CN107846727A (en) | A kind of Poewr control method and device | |
| CN102118752B (en) | Method and device for interference control and coordination | |
| CN107613565B (en) | Wireless resource management method in full-duplex ultra-dense network | |
| Yassin et al. | Centralized multi-cell resource and power allocation for multiuser OFDMA networks | |
| CN107454610B (en) | A kind of disturbance coordination method based on conflict avoidance mechanism in LTE system | |
| CN102547727B (en) | Frequency band distribution method and device | |
| CN110809272A (en) | 5G interference-based macro-micro base station cooperative frequency reuse method | |
| CN104780543B (en) | The frequency spectrum resource optimization method of distribution-type base station architecture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 Tianyuan East Road, Jiangning District, Nanjing, Jiangsu Province, No. 1 Patentee after: Zhong Tong clothing consulting and Design Research Institute Co., Ltd. Address before: 210000 Tianyuan East Road, Jiangning District, Nanjing, Jiangsu Province, No. 1 Patentee before: Jiangsu Posts & Telecommunications Planning and Designing Institute Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |