CN102281247B - A kind of control channel resource allocation method and system - Google Patents
A kind of control channel resource allocation method and system Download PDFInfo
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- CN102281247B CN102281247B CN201110248096.XA CN201110248096A CN102281247B CN 102281247 B CN102281247 B CN 102281247B CN 201110248096 A CN201110248096 A CN 201110248096A CN 102281247 B CN102281247 B CN 102281247B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of control channel resource allocation method and system, the method to include：Base station carries control channel resource original position description field in the system information channel of basic frame, and terminal receives the starting decoded positions for determining control channel after the system information channel according to the control channel resource original position description field.This programme is directed to neighbor cell control interference problem, proposes new control channel resource allocation method, can suppress neighbor cell control channel interference, improve utilization rate of air interface resource, reduce the power consumption of terminal, improves the service quality of system.
Description
Technical field
The invention belongs to the communications field, specifically, more particularly to a kind of control channel resource allocation method and system.
Background technology
Using orthogonal frequency division multiplex OFDM (Orthogonal Frequency Division Multiplexing, letter
Claim OFDM) technology communication system in, system basic parameter is as shown in table 1, and an OFDM symbol includes 256 sons on frequency domain
Carrier wave, wherein data subcarrier 224, Phase Tracking pilot sub-carrier 6, virtual subcarrier (protection subcarrier) 26.
The OFDM basic parameters of table 1
Basic frame (chronomere) structure of said system by targeting sequencing, system information as shown in figure 1, mainly believed
Road, control channel, transmission channel etc. are formed.Control channel take OFDM symbol number be by what base station (central access point) was sent
Information (as shown in table 2, the bit sequence b carried in system control channel48b49…b53) notify to give terminal (website), control channel
The original position of resource is first OFDM symbol behind the OFDM symbol that system control channels take.
The system message field of table 2 defines
With the development of mobile Internet and the popularization of smart mobile phone, mobile data traffic demand is skyrocketed through, quick to increase
Long data service proposes severe challenge to the transmittability of mobile communications network.Data are skyrocketed through to air interface transmission energy
Power proposes higher requirement.To adapt to the demand of air interface transmission ability, it is necessary to which the configuration for control channel resource proposes newly
Solution.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of control channel resource allocation method and system, solves adjacent small
Area's control channel interference problem.
In order to solve the above-mentioned technical problem, the invention provides a kind of control channel resource allocation method, wherein, base station exists
Control channel resource original position description field is carried in the system information channel of basic frame, terminal receives the system information letter
The starting decoded positions of control channel are determined behind road according to the control channel resource original position description field.
Further, the above method can have the characteristics that：
The control channel resource original position description field indicates the starting OFDM symbol position letter of the control channel
Breath.
Further, the above method can have the characteristics that：
The control channel resource original position description field is made up of 6 bits.
Further, the above method can have the characteristics that：
Directly from the control channel resource original position description field after the completion of the decoding terminals system information channel
The OFDM symbol position of instruction starts to decode the control channel.
Further, the above method can have the characteristics that：
The adjacent base station of the base station carries control channel resource original position in the system information channel of basic frame and retouched
The value and the base station for stating field carry control channel resource original position description field in the system information channel of basic frame
Value it is different.
Further, the above method can have the characteristics that：
The Y that the base station is X OFDM symbol of control channel configuration and the adjacent base station is control channel configuration is individual
OFDM symbol is entirely different or part is different, wherein, X and Y are natural number.
In order to solve the above-mentioned technical problem, the invention provides a kind of control channel resource configuration system, including base station and
Terminal, wherein, the base station includes control channel resource configuration unit, and the terminal includes channel decoding unit；The control
Channel resource dispensing unit, for carrying control channel resource original position describing word in the system information channel in basic frame
Section；The channel decoding unit, retouched for receiving according to the control channel resource original position after the system information channel
State the starting decoded positions that field determines control channel.
In order to solve the above-mentioned technical problem, the invention provides a kind of control channel resource allocation method, wherein, base station exists
Control channel resource original position description field is carried in the system information channel of basic frame, is risen using the control channel resource
Beginning location description field indicates the X OFDM symbols that control channel indicates in the control channel cycle indication field of system information channel
The subcarrier number taken in number, X are natural number.
Further, the above method can have the characteristics that：
The adjacent base station of the base station is when sending control channel without using or using institute used in the base station of part
State the subcarrier in X OFDM symbol.
In order to solve the above-mentioned technical problem, the invention provides a kind of control channel resource allocation method, wherein, base station exists
Control channel cycle indication field is carried in the system information channel of basic frame to be used to indicate that control channel takes X OFDM symbol
Number, the base station uses the H OFDM symbol transmission control channel in the X OFDM symbol, wherein, X and H are natural number, H
Less than X.
Further, the above method can have the characteristics that：
The adjacent base station of the base station uses the whole removed in the X OFDM symbol outside the H OFDM symbol
Or part OFDM symbol sends control channel.
Further, the above method can have the characteristics that：
The H OFDM symbol is continuous symbol.
This programme is directed to neighbor cell control interference problem, proposes new control channel resource allocation method, can press down
Neighbor cell control channel interference processed, utilization rate of air interface resource is improved, reduce the power consumption of terminal, improve the service quality of system.
Brief description of the drawings
Fig. 1 is the frame structure of ofdm system；
Fig. 2 is the implementation process figure of control channel resource allocation method；
Fig. 3 is control channel resource allocation method schematic diagram in specific embodiment two；
Fig. 4 is control channel resource allocation method schematic diagram in specific embodiment three；
Fig. 5 is control channel resource allocation method schematic diagram in specific embodiment four；
Fig. 6 is control channel resource allocation method schematic diagram in specific embodiment five；
Fig. 7 is control channel resource allocation method schematic diagram in specific embodiment six；
Fig. 8 is another control channel resource allocation method schematic diagram in specific embodiment six.
Embodiment
As shown in Fig. 2 control channel resource allocation method includes：Base station carries control in the system information channel of basic frame
Channel resource original position description field processed, terminal originate after receiving the system information channel according to the control channel resource
Location description field determines the starting decoded positions of control channel.
Control channel resource original position description field indicates the starting OFDM symbol positional information of the control channel.
The system message field of table 3 defines
Control channel resource original position description field is made up of 6 bits.
Directly indicated after the completion of decoding terminals system information channel from the control channel resource original position description field
OFDM symbol position start to decode the control channel.That is, terminal need not decode system information channel resource OFDM symbol knot
To the symbol between control channel resource original position OFDM symbol at beam.
The adjacent base station of the base station carries control channel resource original position in the system information channel of basic frame and retouched
The value and the base station for stating field carry control channel resource original position description field in the system information channel of basic frame
Value it is different.
The Y that the base station is X OFDM symbol of control channel configuration and the adjacent base station is control channel configuration is individual
OFDM symbol is entirely different or part is different, wherein, X and Y are natural number.Because adjacent base station sends the resource of control channel
Position is entirely different in time domain or partly overlaps and can reduce the control channel interference of adjacent base station.
In another implementation, the adjacent base station of the base station carries control letter in the system information channel of basic frame
The value of road resource original position description field carries control channel resource with the base station in the system information channel of basic frame
The value of original position description field is identical, but OFDM number of control channel resource that two base stations use is different, then two base stations
Resource location in time domain in partly overlapping mode, the control channel interference of adjacent base station can also be reduced.
Another control channel resource allocation method, including：Base station carries control letter in the system information channel of basic frame
Road resource original position description field, indicate control channel in system using the control channel resource original position description field
The subcarrier number taken in X OFDM symbol of the control channel cycle indication field instruction of information channel, X is natural number.
The adjacent base station of the base station is when sending control channel without using or using institute used in the base station of part
State the subcarrier in X OFDM symbol.Due to adjacent base station send control channel resource location on frequency domain it is entirely different or
The control channel interference of adjacent base station can be reduced by partly overlapping.
Another control channel resource allocation method, including：Base station carries control in the system information channel of basic frame
Channel cycle indication field is used to indicate that control channel takes X OFDM symbol, and the base station is used in the X OFDM symbol
H OFDM symbol send control channel, wherein, X and H are natural number, and H is less than X.
The adjacent base station of the base station uses the whole removed in the X OFDM symbol outside the H OFDM symbol
Or part OFDM symbol sends control channel.The resource location that control channel is sent due to adjacent base station is entirely different or partly heavy
The folded control channel interference that can reduce adjacent base station.
The H OFDM symbol is continuous symbol.
Control channel resource configuration system, including base station and terminal, the base station include control channel resource configuration unit,
The terminal includes channel decoding unit；The control channel resource configuration unit is used for the work(for performing base station side in the above method
Can, the channel decoding unit is used for the function of performing end side in the above method.Here is omitted.
It is described in detail below by specific embodiment.
Specific embodiment one
Control is carried using the system information channel that in the frame structure shown in Fig. 1, base station BS-A is transmitted in a basic frame
Channel resource original position description field (as shown in table 3) processed, the control channel resource original position description field description
It is the starting OFDM symbol positional information of the control channel.Such as the field description is that control channel originates in the frame
(T+S) individual OFDM symbol, wherein T be targeting sequencing, system information channel take OFDM symbol number, i.e., with the system
First OFDM is the S OFDM symbol of starting point after the OFDM symbol that information channel takes of uniting.
Terminal determines to control after receiving the system information channel according to the control channel resource original position description field
The starting decoded positions of channel processed.
The terminal need not decode several OFDM symbols between system information channel and control channel, i.e., basic frame
In (T+1) to (T+S-1) individual OFDM symbol, after decoding terminals finish the T OFDM symbol, it is individual to start decoding (T+S)
OFDM symbol.
Specific embodiment two
Control is carried using the system information channel that in the frame structure shown in Fig. 1, base station BS-A is transmitted in a basic frame
Channel resource original position description field (as shown in table 3) processed, the control channel resource original position description field description
It is the starting OFDM symbol positional information of the control channel.Such as the field description is that control channel originates in the frame
(T+S) individual OFDM symbol, wherein T be targeting sequencing, system information channel take OFDM symbol number, i.e., with the system
First OFDM is the S OFDM symbol of starting point after the OFDM symbol that information channel takes of uniting.
Base station BS-A uses (T+S) to (T+Z) individual OFDM symbol transmission control channel in basic frame, and wherein Z's takes
The control channel cycle indication field that value is carried by system information channel notified to terminal, or Z value be system default value.
Base station BS-A adjacent base station BS-B uses (T+M) to (T+N) individual OFDM symbol transmission control in basic frame
Channel processed, wherein M and N are respectively less than S, and M is less than N, as shown in Figure 3.
Terminal determines to control after receiving the system information channel according to the control channel resource original position description field
The starting decoded positions of channel processed.
Specific embodiment three
Control is carried using the system information channel that in the frame structure shown in Fig. 1, base station BS-A is transmitted in a basic frame
Channel resource original position description field (as shown in table 3) processed, the control channel resource original position description field description
It is the starting OFDM symbol positional information of the control channel.Such as the field description is that control channel originates in the frame
(T+S) individual OFDM symbol, wherein T be targeting sequencing, system information channel take OFDM symbol number, i.e., with the system
First OFDM is the S OFDM symbol of starting point after the OFDM symbol that information channel takes of uniting.
Base station BS-A uses (T+S) to (T+Z) individual OFDM symbol transmission control channel in basic frame, and wherein Z's takes
The control channel cycle indication field that value is carried by system information channel notified to terminal, or Z value be system default value.
Base station BS-A adjacent base station BS-B uses (T+M) to (T+N) individual OFDM symbol transmission control in basic frame
Channel processed, wherein M and N are all higher than Z, and M is less than N, as shown in Figure 4.
Specific embodiment four
Control is carried using the system information channel that in the frame structure shown in Fig. 1, base station BS-A is transmitted in a basic frame
Channel resource original position description field (as shown in table 3) processed, the control channel resource original position description field description
It is the starting OFDM symbol positional information of the control channel.Such as the field description is that control channel originates in the frame
(T+S) individual OFDM symbol, wherein T be targeting sequencing, system information channel take OFDM symbol number, i.e., with the system
First OFDM is the S OFDM symbol of starting point after the OFDM symbol that information channel takes of uniting.
Base station BS-A uses (T+S) to (T+Z) individual OFDM symbol transmission control channel in basic frame, and wherein Z's takes
The control channel cycle indication field that value is carried by system information channel notified to terminal, or Z value be system default value.
Base station BS-A adjacent base station BS-B uses (T+M) to (T+N) individual OFDM symbol transmission control in basic frame
Channel processed, wherein M are less than S, and N is more than S, as shown in Figure 5.
Specific embodiment five
Control is carried using the system information channel that in the frame structure shown in Fig. 1, base station BS-A is transmitted in a basic frame
Channel resource original position description field (as shown in table 3) processed, the control channel resource original position description field description
It is several OFDM symbols for the control channel cycle indication field instruction that the control channel carries in the system information channel
The subcarrier number taken in number (such as X).Such as the field description is to refer in the control channel cycle that control channel uses
Show in X OFDM symbol of field instruction and occupy P subcarrier (as shown in Figure 6).
Terminal determines to control after receiving the system information channel according to the control channel resource original position description field
The starting decoded positions of channel processed.
Terminal need not decode the information carried on the subcarrier in the X OFDM symbol outside P subcarrier.
Specific embodiment six
Control is carried using the system information channel that in the frame structure shown in Fig. 1, base station BS-A is transmitted in a basic frame
Channel resource original position description field (as shown in table 3) processed, the control channel resource original position description field description
It is several OFDM symbols for the control channel cycle indication field instruction that the control channel carries in the system information channel
The subcarrier number taken in number (such as X).Such as the field description is to refer in the control channel cycle that control channel uses
Show in X OFDM symbol of field instruction and occupy P subcarrier.
The adjacent base station BS-B of the base station BS-A can not be used when control channel is sent in the frame or part uses
P subcarrier in the X OFDM symbol, as shown in Fig. 7 or Fig. 8.
Preferably, in specific embodiment 1~6, the control channel resource original position description field is by 6 bit structures
Into.Base station BS-A, BS-B use identical carrier frequency.
It may be noted that Fig. 1 gives a kind of frame structure schematic diagram, the present invention is suitable for as the frame structure of deformation,
This is repeated no more.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually any combination.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, can also use the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (4)
1. a kind of control channel resource allocation method, wherein,
Base station carries control channel resource original position description field in the system information channel of basic frame, and terminal receives described
The starting decoded positions of control channel are determined after system information channel according to the control channel resource original position description field；
The Y OFDM symbol that the base station is X OFDM symbol of control channel configuration and adjacent base station is control channel configuration
Entirely different or part is different, wherein, X and Y are natural number；
The adjacent base station of the base station carries control channel resource original position describing word in the system information channel of basic frame
The value of section carries the value of control channel resource original position description field with the base station in the system information channel of basic frame
It is identical；
The control channel resource original position description field indicates the starting OFDM symbol positional information of the control channel.
2. the method as described in claim 1, it is characterised in that
The control channel resource original position description field is made up of 6 bits.
3. the method as described in claim 1, it is characterised in that
Directly indicated after the completion of the decoding terminals system information channel from the control channel resource original position description field
OFDM symbol position start to decode the control channel.
4. a kind of control channel resource configuration system, including base station and terminal, wherein,
The base station includes control channel resource configuration unit, and the terminal includes channel decoding unit；
The control channel resource configuration unit, risen for carrying control channel resource in the system information channel in basic frame
Beginning location description field；
The channel decoding unit, retouched for receiving according to the control channel resource original position after the system information channel
State the starting decoded positions that field determines control channel；
The Y OFDM symbol that the base station is X OFDM symbol of control channel configuration and adjacent base station is control channel configuration
Entirely different or part is different, wherein, X and Y are natural number；
The adjacent base station of the base station carries control channel resource original position describing word in the system information channel of basic frame
The value of section carries the value of control channel resource original position description field with the base station in the system information channel of basic frame
It is identical；
The control channel resource original position description field indicates the starting OFDM symbol positional information of the control channel.
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| CN201110248096.XA CN102281247B (en) | 2011-08-26 | 2011-08-26 | A kind of control channel resource allocation method and system |
| PCT/CN2011/083067 WO2012155488A1 (en) | 2011-08-26 | 2011-11-28 | Method and system for configuring control channel resources |
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| CN201110248096.XA CN102281247B (en) | 2011-08-26 | 2011-08-26 | A kind of control channel resource allocation method and system |
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| WO2014000227A1 (en) * | 2012-06-28 | 2014-01-03 | 华为技术有限公司 | Channel state information measurement method, terminal, and base station |
| CN103582130B (en) * | 2012-07-19 | 2016-08-03 | 成都鼎桥通信技术有限公司 | Service quality and the collocation method of resource, base station and subscriber equipment |
| US9325463B2 (en) | 2013-11-19 | 2016-04-26 | Intel IP Corporation | High-efficiency WLAN (HEW) master station and methods to increase information bits for HEW communication |
| BR112016008789B1 (en) * | 2013-11-19 | 2022-12-27 | SOLiD, INC | MAIN STATION CONFIGURED FOR HIGH-EFFICIENCY WIRELESS LOCAL AREA NETWORK COMMUNICATION, METHOD PERFORMED BY A MAIN STATION, STORAGE MEDIA AND HIGH-EFFICIENCY WIRELESS LOCAL AREA NETWORK STATION |
| US9705643B2 (en) | 2014-07-15 | 2017-07-11 | Intel IP Corporation | High-efficiency wireless local-area network devices and methods for acknowledgements during scheduled transmission opportunities |
| CN108462564B (en) * | 2017-02-17 | 2021-01-26 | 中兴通讯股份有限公司 | Control channel resource allocation and wireless communication signal transmission method and device |
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| US6463073B1 (en) * | 1998-12-21 | 2002-10-08 | Nortel Networks Limited | Slot structure and method of power control for use in a TDMA network |
| CN101064927A (en) * | 2006-04-27 | 2007-10-31 | 北京三星通信技术研究有限公司 | Device and method for indicating channel resources distribution in wireless communication system |
| CN101299745A (en) * | 2008-06-23 | 2008-11-05 | 中兴通讯股份有限公司 | Method and device for mapping control channel |
| CN102027763A (en) * | 2008-03-10 | 2011-04-20 | 北方电讯网络有限公司 | Methods for control signaling for wireless systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101610132B (en) * | 2008-06-17 | 2012-12-19 | 中兴通讯股份有限公司 | Method for realizing downlink control channel in wireless communication system |
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- 2011-08-26 CN CN201110248096.XA patent/CN102281247B/en active Active
- 2011-11-28 WO PCT/CN2011/083067 patent/WO2012155488A1/en active Application Filing
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|---|---|---|---|---|
| US6463073B1 (en) * | 1998-12-21 | 2002-10-08 | Nortel Networks Limited | Slot structure and method of power control for use in a TDMA network |
| CN101064927A (en) * | 2006-04-27 | 2007-10-31 | 北京三星通信技术研究有限公司 | Device and method for indicating channel resources distribution in wireless communication system |
| CN102027763A (en) * | 2008-03-10 | 2011-04-20 | 北方电讯网络有限公司 | Methods for control signaling for wireless systems |
| CN101299745A (en) * | 2008-06-23 | 2008-11-05 | 中兴通讯股份有限公司 | Method and device for mapping control channel |
| CN102104873A (en) * | 2009-12-16 | 2011-06-22 | 中兴通讯股份有限公司 | Co-channel networking method and base station |
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| CN102281247A (en) | 2011-12-14 |
| WO2012155488A1 (en) | 2012-11-22 |
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