CN102264136B - Method and device for controlling configuration of channel resources - Google Patents
Method and device for controlling configuration of channel resources Download PDFInfo
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- CN102264136B CN102264136B CN201110225647.0A CN201110225647A CN102264136B CN 102264136 B CN102264136 B CN 102264136B CN 201110225647 A CN201110225647 A CN 201110225647A CN 102264136 B CN102264136 B CN 102264136B
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Abstract
The invention discloses a method and a device for controlling configuration of channel resources. The method comprises the following step: when the number of available data sub-carriers of an OFDM (orthogonal frequency division multiplexing) symbol on a frequency domain is M, distributing N data sub-carriers for each control channel, wherein both M and N are positive integers, N is less than or equal to M, and N is an positive integer capable of dividing M exactly. The scheme in the invention can be used for improving sub-carrier utilization of the OFDM symbol, ensuring that the controlling of the resource distribution of the channel does not require OFDM symbol crossing, reducing the terminal power consumption and realizing complexity of the terminal.
Description
Technical field
The present invention relates to moving communicating field, more particularly, to a kind of control channel resource allocation method and configuration device.
Background technology
In a communications system, base station (central access point) passes through control channel to terminal (website) transmission control information, institute
State one or more that control information includes following information：Downlink resource distribution information, ascending resource distribution information, modulating-coding
The mode parameter information relevant with multi-input/output antenna technology, feedback channel resources distribution information, feedback channel index point
Join information etc., terminal carries out associative operation according to described control information.
Using OFDM (Orthogonal Frequency Division Multiplexing, referred to as
OFDM) in the communication system of technology, as shown in table 1, an OFDM symbol includes 256 sons on frequency domain and carries system basic parameter
Ripple, wherein data subcarrier 224, Phase Tracking pilot sub-carrier 6, virtual subcarrier (protection subcarrier) 26.This is
System contains several control channels in control channel (Control Channel, abbreviation CCH) region.
Table 1 OFDM basic parameter
Based on said system, a kind of existing control channel method for designing is using QPSK (Quaternary
Phase Shift Keying, abbreviation QPSK) 1/2 modulation coding mode, each control channel occupies 72 subcarriers, transmits 72
The information content of individual bit, table 2 gives 72 bits corresponding implication (72 when transmitting up-downgoing schedule information in control channel
Other information can also be transmitted on individual bit, will not be described here).
Table 2 is descending to be defined with uplink scheduling signaling field
In this system, an OFDM symbol comprises 224 available data subcarriers, in therefore one OFDM symbol at most
Three control channels can be comprised, simultaneously remaining 8 subcarriers.Typically adopt the money of time division multiple acess access in view of this system
The source method of salary distribution that is to say, that terminal obtain upstream or downstream resource be usually OFDM symbol integer multiple, then each
In residue in OFDM symbol, 8 subcarriers are typically not assigned to terminal for carrying out data transmission；Together should be multiple continuous
When OFDM symbol is assigned to control channel use, such as, when continuous 8 OFDM symbol are assigned to control channel use, will be total to
There are 64 subcarriers can not be used.In addition, this design brings very big restriction to the motility of the scheduling of system,
Also the design such as the power consumption to terminal and caching brings complexity.
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 configuration device, improves
The subcarrier utilization rate of OFDM symbol and/or guarantee control channel resource allocation need not be across OFDM symbol.
In order to solve above-mentioned technical problem, the invention provides a kind of control channel resource allocation method, including：One
OFDM symbol on frequency domain available data subcarrier number be M when, for each control channel distribute N number of data subcarrier, its
In, M, N are positive integer, and N is less than or equal to M, and N is the positive integer that can divide exactly M.
Further, said method can also have the characteristics that：
By the way of two-phase PSK or the mode of intersecting phase-shift keying (PSK) is modulated to described control channel.
Further, said method can also have the characteristics that：
The code rate of described control channel is the ratio of Y and X, Y and X is positive integer, and Y is less than or equal to X, N and Y
Product can be divided exactly by X.
In order to solve above-mentioned technical problem, present invention also offers a kind of control channel resource allocation method, wherein, one
OFDM symbol on frequency domain available data subcarrier number be M when, for each control channel distribute N number of data subcarrier, be
The number of the OFDM symbol of control channel distribution is G, and number G according to the described OFDM symbol for control channel distribution determines to use
The occupation mode of remaining X data subcarrier in each OFDM symbol transmitting described control channel, wherein, M, N are
Positive integer, N is less than or equal to M, the remainder that X obtains divided by N for M, and G is positive integer.
Further, said method can also have the characteristics that：
N is the product of X and Y, and Y is positive integer, and when the value of described G is not the integral multiple of Y, the described G OFDM of configuration accords with
In front G-S OFDM symbol in number, all data subcarriers are used for transmission data channel signal, configure in described G OFDM symbol
Do not transmit on remaining X data subcarrier in last S OFDM symbol and any interior be perhaps used for transmitting pilot signal, wherein, S
The remainder obtaining divided by Y for G.
Further, said method can also have the characteristics that：
N is the product of X and Y, and Y is positive integer, when the value of described G is the integral multiple of Y, configures remaining in each OFDM symbol
X data subcarrier on be used for transmitting control channel signal.
Further, said method can also have the characteristics that：
Use the number in described G OFDM symbol according to the mode of time domain after first frequency domain or the mode of frequency domain after first time domain
According to subcarrier.
In order to solve above-mentioned technical problem, present invention also offers a kind of control channel resource allocation method, wherein, one
OFDM symbol on frequency domain available data subcarrier number be M when, for each control channel distribute N number of data subcarrier, join
It is set to remaining X data subcarrier in each OFDM symbol of control channel setting and does not transmit and any interior be perhaps used for transmitting pilot tone
Signal, wherein, M, N are positive integer, and N is less than or equal to M, and M is positive integer that can not be evenly divisible by N, and X is more than M obtains divided by N
Number.
In order to solve above-mentioned technical problem, present invention also offers a kind of control channel resource allocation method, wherein, one
OFDM symbol on frequency domain available data subcarrier number be M when, for each control channel distribute N number of data subcarrier, be
Control channel arranges Z OFDM symbol, and the product of M and Z can be evenly divisible by N, and wherein, M, N, Z are positive integer, and N is less than or waits
In M.
Present invention also offers a kind of control channel resource allocation method, wherein, an OFDM symbol is available on frequency domain
Data subcarrier number when being M, distribute N number of data subcarrier for each control channel, be that control channel arranges Z OFDM and accords with
Number, the mode according to frequency domain after time domain after first frequency domain or first time domain uses the data subcarrier in described Z OFDM symbol, its
In, M, N, Z are positive integer.
Said method can also have the characteristics that：
Base station is notified the number of the OFDM symbol arranging for control channel to terminal by system information channel.
Said method can also have the characteristics that：
M value is 224, N value is 74.
In order to solve above-mentioned technical problem, the invention provides a kind of control channel device for allocating resources, wherein, described join
Put device and include dispensing unit；Described dispensing unit, for configuring control channel resource according to described method.
This programme can improve the subcarrier utilization rate of OFDM symbol it is ensured that control channel resource allocation need not across OFDM symbol
Number, reduce the implementation complexity of power consumption of terminal and terminal.
Brief description
Fig. 1 is the schematic diagram of control channel resource allocation method in embodiment one；
Fig. 2 is the schematic diagram of control channel resource allocation method in embodiment two；
Fig. 3 be embodiment two instantiation in data subcarrier use schematic diagram；
Fig. 4 is the schematic diagram of control channel resource allocation method in embodiment three；
Fig. 5 is the schematic diagram of control channel resource allocation method in example IV；
Fig. 6 is the schematic diagram of control channel resource allocation method in embodiment five；
Fig. 7 be embodiment five instantiation in data subcarrier use schematic diagram.
Specific embodiment
Embodiment one
As shown in figure 1, control channel resource allocation method includes：One OFDM symbol available data on frequency domain carries
When ripple number is M, distribute N number of data subcarrier for each control channel, wherein, M, N are positive integer, N is less than or equal to M, N
It is the positive integer that can divide exactly M.
Mode or intersecting phase shift using two-phase PSK (Binary Phase Shift Keying, abbreviation BPSK)
The mode of keying (Quadrature Phase Shift Keying abbreviation QPSK) is modulated to described control channel.
The code rate of described control channel is the ratio of Y and X, Y and X is positive integer, and Y is less than or equal to X, preferably
, the product of N and Y can be divided exactly by X.
Base station is notified the number of the OFDM symbol arranging for control channel to terminal by system information channel.
Instantiation 1.1
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 224,
It is 56 that each control channel occupies sub-carrier number N.N can divide exactly M.
The OFDM symbol number that control channel region takies is by system by the system information before described control channel
Channel notification terminal.
Assume that control channel adopts BPSK 1/2 coded system, then each control channel can carry the number of 28 bits
According to.
Assume that control channel adopts QPSK 1/2 coded system, then each control channel can carry the number of 56 bits
According to.
Instantiation 1.2
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 222,
It is 74 that each control channel occupies sub-carrier number N.N can divide exactly M.
The OFDM symbol number that control channel region takies is by system by the system information before described control channel
Channel notification terminal.
Assume that control channel adopts BPSK 1/2 coded system, then each control channel can carry the number of 37 bits
According to.
Assume that control channel adopts QPSK 1/2 coded system, then each control channel can carry the number of 74 bits
According to.
Embodiment two
As shown in Fig. 2 control channel resource allocation method includes：One OFDM symbol available data on frequency domain carries
When ripple number is M, distribute N number of data subcarrier for each control channel, be that the number of the OFDM symbol of control channel distribution is
G, determines to accord with for each OFDM transmitting described control channel according to number G of the described OFDM symbol for control channel distribution
The occupation mode of remaining X data subcarrier on number, wherein, M, N are positive integer, and N is less than or equal to M, and X obtains divided by N for M
The remainder arriving, G is positive integer.
N is the product of X and Y is N=X*Y, and Y is positive integer, when the value of described G is not the integral multiple of Y, configures described G
In front G-S OFDM symbol in individual OFDM symbol, all data subcarriers are used for transmission data channel signal, configure described G
Do not transmit on remaining X data subcarrier in last S OFDM symbol in OFDM symbol and any interior be perhaps used for transmitting pilot tone
Signal, wherein, the remainder that S obtains divided by Y for G.
N is the product of X and Y is N=X*Y, and Y is positive integer, and the value of described G is that during the integral multiple of Y, (G=Y*Z, Z are
Positive integer), configure and be used for transmitting control channel signal on remaining X data subcarrier in each OFDM symbol.
Preferably, the remaining X*Y*Z data subcarrier in described Y*Z OFDM symbol is used for transmitting Z control letter
Road.
Wherein, use described G OFDM symbol according to the mode of time domain after first frequency domain or the mode of frequency domain after first time domain
On data subcarrier.
Base station is notified the number of the OFDM symbol arranging for control channel to terminal by system information channel.
Instantiation 2.1
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 224,
It is 72 that each control channel takies subcarrier number N, and each OFDM remaining data subcarrier number X is that remainder (224,72) is
8, then the number G decision according to the OFDM symbol for control channel distribution is surplus in each OFDM symbol of control channel for transmitting
The occupation mode of 8 remaining data subcarriers.
The value of N is the product of X and Y, and that is, the value of Y is 9.
When the value of G is that to be G value be 9*Z (Z be positive integer) during the integral multiple of Y, then it is used for transmitting described control channel
Each OFDM symbol on remaining X data subcarrier will be used for transmit control channel.
Control channel uses described 9*Z according to the mode (Fig. 3 (a)) of time domain after first frequency domain or the mode of time domain after first frequency domain
Data subcarrier in individual OFDM symbol.
The number of the OFDM symbol distributed for described control channel is by described system by before described control channel
System information channel notify terminal.
Instantiation 2.2
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 224,
It is 72 that each control channel takies subcarrier number N, and each OFDM remaining data subcarrier number X is that remainder (224,72) is
8, then the number G decision according to the OFDM symbol for control channel distribution is surplus in each OFDM symbol of control channel for transmitting
The occupation mode of 8 remaining data subcarriers.
The value of N is the product of X and Y, and that is, the value of Y is 9.
When the value of G is not the integral multiple of Y, such as, when G is 3, the remainder that the value of S obtains divided by Y for G is 3, then configure
Any content is not transmitted for transmitting or for passing on remaining 8 data subcarriers in each OFDM symbol of control channel
Defeated pilot signal.When such as G is 11 again, the remainder that the value of S obtains divided by Y for G is 2, for transmitting described control channel
In front 9 OFDM symbol, all data subcarriers are all used for transmission data channel (using Fig. 3 (b)), in latter two OFDM symbol
Any content is not transmitted or for transmitting pilot signal on remaining 8 data subcarriers in each OFDM symbol.
Described control channel uses surplus in described 9*Z OFDM symbol according to the mode (Fig. 3 (b)) of time domain after first frequency domain
8*9*Z remaining data subcarrier is used for transmitting Z control channel.
The number of the OFDM symbol distributed for described control channel is by described system by before described control channel
System information channel notify terminal.
Embodiment three
As shown in figure 4, control channel resource allocation method includes：One OFDM symbol available data on frequency domain carries
When ripple number is M, distribute N number of data subcarrier for each control channel, be configured in each OFDM symbol of control channel setting
Remaining X data subcarrier do not transmit any interior be perhaps used for transmitting pilot signal, wherein, M, N are positive integer, and N is less than
Or it is equal to M, M is positive integer that can not be evenly divisible by N, the remainder that X obtains divided by N for M.
Base station is notified the number of the OFDM symbol arranging for control channel to terminal by system information channel.
Instantiation 3
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 224,
Subcarrier number N that each control channel occupies is 72, and remaining data subcarrier number X is that remainder (224,72) is 8, then use
Any content is not transmitted to transmit or for transmitting on remaining 8 data subcarriers in each OFDM symbol of control channel
Pilot signal.
Number for the OFDM symbol of control channel distribution is believed by the system before described control channel by system
Breath channel notification terminal.
Example IV
As shown in figure 5, control channel resource allocation method includes：One OFDM symbol available data on frequency domain carries
When ripple number is M, distribute N number of data subcarrier for each control channel, be that control channel arranges Z OFDM symbol, M and Z's
Product can be evenly divisible by N, and wherein, M, N, Z are positive integer, and N is less than or equal to M.
Base station is notified the number of the OFDM symbol arranging for control channel to terminal by system information channel.
Specific embodiment 4
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 224,
It is 72 that each control channel occupies subcarrier N, corresponding to for transmitting the 9 of control channel integral multiple OFDM symbol.
Embodiment five
As shown in fig. 6, control channel resource allocation method includes：One OFDM symbol available data on frequency domain carries
When ripple number is M, distribute N number of data subcarrier for each control channel, be that control channel arranges Z OFDM symbol, according to elder generation
After time domain or first time domain after frequency domain, the mode of frequency domain uses the data subcarrier in described Z OFDM symbol, and wherein, M, N, Z are equal
For positive integer.
Instantiation 5.1
Using in the system of OFDM technology, OFDM symbol available data subcarrier number M on frequency domain is 224,
It is 72 that each control channel occupies subcarrier N, for transmitting 8 OFDM symbol of described control channel, then described control channel
Use the data subcarrier in described 8 OFDM symbol according to time domain " Z-shaped " mode (Fig. 7 (a)) after first frequency domain, according to this kind of
Mode, has 64 data subcarriers in the 8th OFDM symbol and is not used by control channel.
The number of the OFDM symbol distributed for described control channel is by described system by before described control channel
System information channel notify terminal.
Specific embodiment 5.2
Using in the system of OFDM technology, OFDM symbol available data subcarrier number on frequency domain is 224, often
Individual control channel occupies 72 subcarriers, for transmitting 8 OFDM symbol of described control channel, then described control channel according to
After first time domain, frequency domain " Z-shaped " mode (Fig. 7 (b)) uses the data subcarrier in described 8 OFDM symbol.
The number of the OFDM symbol distributed for described control channel is by described system by before described control channel
System information channel notify terminal.
Control channel device for allocating resources includes dispensing unit；This dispensing unit, for according to described in above-mentioned enforcement
Method configures control channel resource.
It may be noted that in embodiment 1～8, data subcarrier number can also be 64,128,256,512,1024 etc.,
It is exactly 2 power side, the relation of digital subcarrier index and actual physical sub-carrier index depends on the son load of real system
Ripple mapping mode, will not be described here.
The method that the present invention provides is suitable for the system using OFDM technology, and such as China is formulating《TC5-WG3-
Wireless local area network technology requirement-the part 2 of 2011-015- high spectrum utilization and high data throughput _ enhancement mode ultrahigh speed is no
Line local network MAC layer and PHY layer》Received text.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combination in any.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and its essence, ripe
Know those skilled in the art to make various corresponding changes according to the present invention and deform, but these corresponding changes and deformation
The protection domain of appended claims of the invention all should be belonged to.
One of ordinary skill in the art will appreciate that all or part of step in said method can be instructed by program
Related hardware completes, and described program can be stored in computer-readable recording medium, such as read only memory, 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 to be realized in the form of hardware, it would however also be possible to employ 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 (5)
1. a kind of control channel resource allocation method, wherein,
One OFDM symbol is when on frequency domain, available data subcarrier number is M, for each control channel distribution N number of data
Carrier wave, is that the number of the OFDM symbol of control channel distribution is G, according to the number of the described OFDM symbol for control channel distribution
G determines the occupation mode for transmitting remaining X data subcarrier in each OFDM symbol of described control channel, wherein,
M, N are positive integer, and N is less than or equal to M, the remainder that X obtains divided by N for M, and G is positive integer；
Wherein, N is the product of X and Y, and Y is positive integer, and when the value of described G is not the integral multiple of Y, the described G OFDM of configuration accords with
In front G-S OFDM symbol in number, all data subcarriers are used for transmission data channel signal, configure in described G OFDM symbol
Do not transmit on remaining X data subcarrier in last S OFDM symbol and any interior be perhaps used for transmitting pilot signal, wherein, S
The remainder obtaining divided by Y for G.
2. the method for claim 1 it is characterised in that
N is the product of X and Y, and Y is positive integer, when the value of described G is the integral multiple of Y, configures remaining X in each OFDM symbol
It is used on individual data subcarrier transmitting control channel signal.
3. method as claimed in claim 2 it is characterised in that
Use the data in described G OFDM symbol sub according to the mode of time domain after first frequency domain or the mode of frequency domain after first time domain
Carrier wave.
4. the method as described in any claim in claims 1 to 3 it is characterised in that
Base station is notified the number of the OFDM symbol arranging for control channel to terminal by system information channel.
5. the method as described in any claim in claims 1 to 3 it is characterised in that
M value is 224, N value is 74.
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| CN201110225647.0A CN102264136B (en) | 2011-08-08 | 2011-08-08 | Method and device for controlling configuration of channel resources |
| PCT/CN2011/083084 WO2012155491A1 (en) | 2011-08-08 | 2011-11-28 | Method, device and base station for controlling configuration of channel resources |
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| CN201110225647.0A CN102264136B (en) | 2011-08-08 | 2011-08-08 | Method and device for controlling configuration of channel resources |
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| CN106793137B (en) | 2016-08-05 | 2018-11-27 | 北京展讯高科通信技术有限公司 | communication control method and device |
| CN107920389B (en) * | 2016-10-07 | 2020-06-30 | 上海朗帛通信技术有限公司 | Method and device for resource mapping adjustment in UE and base station |
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| CN101299653A (en) * | 2008-06-23 | 2008-11-05 | 中兴通讯股份有限公司 | Method and device for controlling channel encode speed self-adaption |
| CN101635619A (en) * | 2009-08-28 | 2010-01-27 | 华为技术有限公司 | Method, base station and system for transmitting subcarriers |
| CN102017559A (en) * | 2008-06-08 | 2011-04-13 | Lg电子株式会社 | Method of transmitting control signals in wireless communication system |
| CN102036386A (en) * | 2009-09-29 | 2011-04-27 | 中兴通讯股份有限公司 | LTE-A system and resource distribution method of physical downlink control channel of relay link |
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| EP1929803B1 (en) * | 2005-08-23 | 2014-03-05 | Microsoft Corporation | Methods and systems to mitigate inter-cell interference |
| GB2460316B (en) * | 2006-10-10 | 2011-05-11 | Toshiba Kk | Mobile communication system and wireless device |
| CN101568180A (en) * | 2008-04-24 | 2009-10-28 | 中兴通讯股份有限公司 | Resource allocation method |
| CN101605117B (en) * | 2008-06-13 | 2012-09-05 | 中兴通讯股份有限公司 | Pilot frequency distributing method and system |
| KR101792294B1 (en) * | 2009-08-14 | 2017-10-31 | 인터디지탈 테크날러지 코포레이션 | Dl backhaul control channel design for relays |
| CN102143588A (en) * | 2011-03-15 | 2011-08-03 | 东南大学 | Resource-allocating method for multi-user multi-relay communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017559A (en) * | 2008-06-08 | 2011-04-13 | Lg电子株式会社 | Method of transmitting control signals in wireless communication system |
| CN101299653A (en) * | 2008-06-23 | 2008-11-05 | 中兴通讯股份有限公司 | Method and device for controlling channel encode speed self-adaption |
| CN101635619A (en) * | 2009-08-28 | 2010-01-27 | 华为技术有限公司 | Method, base station and system for transmitting subcarriers |
| CN102036386A (en) * | 2009-09-29 | 2011-04-27 | 中兴通讯股份有限公司 | LTE-A system and resource distribution method of physical downlink control channel of relay link |
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