CN106656439B - Shared band downlink multi-subband resource allocation methods and base station - Google Patents
Shared band downlink multi-subband resource allocation methods and base station Download PDFInfo
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- CN106656439B CN106656439B CN201510411999.3A CN201510411999A CN106656439B CN 106656439 B CN106656439 B CN 106656439B CN 201510411999 A CN201510411999 A CN 201510411999A CN 106656439 B CN106656439 B CN 106656439B
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- pdcch
- radio frames
- subframe
- resource allocation
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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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of shared band downlink multi-subband resource allocation methods and base station, this method comprises: base station sends downlink resource to user equipment (UE) by the same subframe of a radio frames, downlink resource includes the control information of PDCCH carrying and the data information of PDSCH carrying, so that UE data information according to the control acquisition of information of the downlink resource；Wherein, the downlink resource in the subframe of radio frames is distributed according to default resource allocation policy.This method sends PDCCH and PDSCH by passing through the method for frequency division and time-division in the same radio frames, the dynamic resource allocation of system may be implemented, and by reasonable resource allocation, PDSCH business efficiency of transmission is enable to effectively improve.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of shared band downlink multi-subband resource allocation methods
And base station.
Background technique
With flourishing for the continuous development and mobile Internet and Internet of Things industry for wirelessly communicating new technology, respectively
Demand of the radio traffic to radio-frequency spectrum sharply expands, and frequency spectrum resource is increasingly in short supply.Traditional fixed allocation private network frequency
Way to manage have exclusiveness, due to the business feature of industry user, this mode be easy to cause trade Special Network wireless frequency spectrum
Utilization rate it is relatively low, frequency spectrum resource is underutilized, and there are a degree of wastes.Frequency spectrum share can break frequency
The exclusiveness of spectrum occupies, and is opened to more usable spectrum resources, becomes a kind of promotion wireless frequency spectrum utilization rate of great potential
Scheme.
Current idle usable spectrum is known by dynamic spectrum perception, then carries out frequency spectrum access.How efficiently to utilize
The shared band perceived is a focus of sensory perceptual system design.
For a kind of multi-subband business frequency of private network wireless communication system, due to Physical Downlink Control Channel
(Physical Downlink Control Channel, abbreviation PDCCH) and Physical Downlink Shared Channel (Physical
Downlink Shared Channel, abbreviation PDSCH) occupy identical downlink radio frame resource, i.e. a radio frames can only pass
Defeated PDCCH or PDSCH makes PDCCH and PDSCH time-division downlink resource by different wireless frame schedulings.If necessary to realize
Dynamic resource allocation influences the transmission of PDSCH business, transmission efficiency is low for system business then PDCCH occupancy expense is very big.
In consideration of it, how the downlink multi-subband resource of private network wireless communication system multi-subband business frequency is allocated,
Become the current technical issues that need to address to improve the efficiency of transmission of PDSCH business.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of shared band downlink multi-subband resource allocation methods and base
It stands, by passing through the method for frequency division and time-division in the same radio frames, while sending PDCCH and PDSCH, system may be implemented
Dynamic resource allocation, and by reasonable resource allocation, so that PDSCH business efficiency of transmission is effectively improved.
In a first aspect, the present invention provides a kind of shared band downlink multi-subband resource allocation methods, comprising:
Base station sends downlink resource, the downlink resource packet to user equipment (UE) by the same subframe of a radio frames
The control information of PDCCH carrying and the data information of PDSCH carrying are included, so that the UE believes according to the control of the downlink resource
Breath obtains the data information；
Wherein, the downlink resource in the subframe of the radio frames is distributed according to default resource allocation policy.
Optionally, the default resource allocation policy, comprising:
It is occupied in the continuous frequency point of whole logics in UE, PCFICH occupies preceding 4 frequency points of the subframe of the radio frames
1st OFDM symbol；
It is occupied in whole continuous frequency points of logic in UE, PHICH occupies the of preceding 4 frequency points of the subframe of the radio frames
2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDCCH occupies the of preceding 4 subbands of the subframe of the radio frames
3 to npdcch+ 2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDSCH occupies the 5th of the subframe of the radio frames to N number of frequency point
OFDM symbol and the UE preceding 4 frequency points remove the 1st to npdcchOther OFDM symbols except+2 OFDM symbols；
Wherein, the subframe of the radio frames includes: N number of frequency point of predistribution, and N is the integer more than or equal to 4, the npdcch
PDCCH to carry in the PCFICH occupies the quantity of OFDM symbol.
Optionally, the npdcchValue range be { 0,1 ... ..., 11 }.
Second aspect, the present invention provide a kind of base station, comprising:
Sending module sends downlink resource to user equipment (UE) for the same subframe by a radio frames, described
Downlink resource includes the control information of PDCCH carrying and the data information of PDSCH carrying, so that the UE is provided according to the downlink
Data information described in the control acquisition of information in source；
Wherein, the downlink resource in the subframe of the radio frames is distributed according to default resource allocation policy.
Optionally, the default resource allocation policy, comprising:
It is occupied in the continuous frequency point of whole logics in UE, PCFICH occupies preceding 4 frequency points of the subframe of the radio frames
1st OFDM symbol；
It is occupied in whole continuous frequency points of logic in UE, PHICH occupies the of preceding 4 frequency points of the subframe of the radio frames
2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDCCH occupies the of preceding 4 subbands of the subframe of the radio frames
3 to npdcch+ 2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDSCH occupies the 5th of the subframe of the radio frames to N number of frequency point
OFDM symbol and the UE preceding 4 frequency points remove the 1st to npdcchOther OFDM symbols except+2 OFDM symbols；
Wherein, the subframe of the radio frames includes: N number of frequency point of predistribution, and N is the integer more than or equal to 4, the npdcch
PDCCH to carry in the PCFICH occupies the quantity of OFDM symbol.
Optionally, the npdcchValue range be { 0,1 ... ..., 11 }.
As shown from the above technical solution, shared band downlink multi-subband resource allocation methods of the invention and base station, pass through
Pass through the method for frequency division and time-division in the same radio frames, while sending PDCCH and PDSCH, the dynamic money of system may be implemented
Source distribution, and by reasonable resource allocation, so that PDSCH business efficiency of transmission is effectively improved.
Detailed description of the invention
Fig. 1 is a kind of process signal for shared band downlink multi-subband resource allocation methods that one embodiment of the invention provides
Figure；
Fig. 2 is a kind of downlink resource distribution condition schematic diagram using embodiment illustrated in fig. 1 the method；
Fig. 3 is a kind of structural schematic diagram for base station that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 shows the process signal of the shared band downlink multi-subband resource allocation methods of one embodiment of the invention offer
Figure, as shown in Figure 1, the shared band downlink multi-subband resource allocation methods of the present embodiment are as described below.
101, base station is sent out by the same subframe of a radio frames to user equipment (User Equipment, abbreviation UE)
Downlink resource is sent, the downlink resource includes the control information of PDCCH carrying and the data information of PDSCH carrying, so that described
UE data information according to the control acquisition of information of the downlink resource.
Wherein, the downlink resource in the subframe of the radio frames is distributed according to default resource allocation policy.
Wherein, the default resource allocation policy, comprising:
It is occupied in the continuous frequency point of whole logics in UE, Physical Control Format Indicator Channel (Physical Control
Format Indicator Channel, abbreviation PCFICH) occupying the 1st of preceding 4 frequency points of subframe of the radio frames just
Hand over frequency division multiplexing (Orthogonal Frequency Division Multiplexing, abbreviation OFDM) symbol；
It is occupied in the continuous frequency point of whole logics in UE, physical mixed automatic re-transmission indicating channel (Physical Hybrid
ARQ Indicator Channel, abbreviation PHICH) occupy the radio frames subframe preceding 4 frequency points the 2nd OFDM symbol
Number；
It is occupied in whole continuous frequency points of logic in UE, PDCCH occupies the of preceding 4 subbands of the subframe of the radio frames
3 to npdcch+ 2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDSCH occupies the 5th of the subframe of the radio frames to N number of frequency point
OFDM symbol and the UE preceding 4 frequency points remove the 1st to npdcchOther OFDM symbols except+2 OFDM symbols；
Wherein, the subframe of the radio frames includes: N number of frequency point of predistribution, and N is the integer more than or equal to 4, the npdcch
PDCCH to carry in the PCFICH occupies the quantity of OFDM symbol.
It will be appreciated that in the present embodiment, each frequency domain is that the physical channel of 25kHz bandwidth is defined as a frequency point.
In a particular application, n described in the present embodimentpdcchValue range be { 0,1 ... ..., 11 }.
The PDCCH that its carrying can be preset in PCFICH in the present embodiment occupies the quantity of OFDM symbol, accounts for 2 bits
Position.For example, setting PCFICH is that PDCCH is not transmitted in 0 expression, and setting PCFICH is that 1 expression PDCCH occupies 4 OFDM symbols
Number, setting PCFICH is that 2 expression PDCCH occupy 8 OFDM symbols, and setting PCFICH is that 3 expression PDCCH occupy 11 OFDM symbols
Number.
It should be noted that in the prior art, the downlink resource of the subframe of a radio frames accounts for 13 OFDM symbols.
For example, npdcchValue is 5, and Fig. 2 shows distributed using a kind of downlink resource of the present embodiment the method
Situation schematic diagram (npdcch=5).
The shared band downlink multi-subband resource allocation methods of the present embodiment, by the same radio frames by frequency division and
The method of time-division, while PDCCH and PDSCH are sent, the dynamic resource allocation of system may be implemented, and pass through reasonable resource
Distribution, enables PDSCH business efficiency of transmission to effectively improve.
Fig. 3 shows a kind of structural schematic diagram of base station of one embodiment of the invention offer, as shown in figure 3, the present embodiment
Base station, comprising: sending module 31；
Sending module 31 sends downlink resource, institute to user equipment (UE) for the same subframe by a radio frames
The data information for stating control information and PDSCH carrying that downlink resource includes PDCCH carrying, so that the UE is according to the downlink
Data information described in the control acquisition of information of resource.
Wherein, the downlink resource in the subframe of the radio frames is distributed according to default resource allocation policy.
Wherein, the default resource allocation policy, comprising:
It is occupied in the continuous frequency point of whole logics in UE, PCFICH occupies preceding 4 frequency points of the subframe of the radio frames
1st OFDM symbol；
It is occupied in whole continuous frequency points of logic in UE, PHICH occupies the of preceding 4 frequency points of the subframe of the radio frames
2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDCCH occupies the of preceding 4 subbands of the subframe of the radio frames
3 to npdcch+ 2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDSCH occupies the 5th of the subframe of the radio frames to N number of frequency point
OFDM symbol and the UE preceding 4 frequency points remove the 1st to npdcchOther OFDM symbols except+2 OFDM symbols；
Wherein, the subframe of the radio frames includes: N number of frequency point of predistribution, and N is the integer more than or equal to 4, the npdcch
PDCCH to carry in the PCFICH occupies the quantity of OFDM symbol.
It will be appreciated that in the present embodiment, each frequency domain is that the physical channel of 25kHz bandwidth is defined as a frequency point.
In a particular application, n described in the present embodimentpdcchValue range be { 0,1 ... ..., 11 }.
The PDCCH that its carrying can be preset in PCFICH in the present embodiment occupies the quantity of OFDM symbol, accounts for 2 bits
Position.For example, setting PCFICH is that PDCCH is not transmitted in 0 expression, and setting PCFICH is that 1 expression PDCCH occupies 4 OFDM symbols
Number, setting PCFICH is that 2 expression PDCCH occupy 8 OFDM symbols, and setting PCFICH is that 3 expression PDCCH occupy 11 OFDM symbols
Number.
It should be noted that in the prior art, the downlink resource of the subframe of a radio frames accounts for 13 OFDM symbols.
For example, npdcchThe case where value is 5, and downlink resource is distributed in base station described in the present embodiment is as shown in Figure 2.
The base station of the present embodiment, by the same radio frames by the method for frequency division and time-division, while send PDCCH and
The dynamic resource allocation of system may be implemented in PDSCH, and by reasonable resource allocation, enables PDSCH business efficiency of transmission
Enough effectively improve.
The base station of the present embodiment can be used for executing the technical solution of embodiment of the method shown in earlier figures 1, realization principle
Similar with technical effect, details are not described herein again.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of shared band downlink multi-subband resource allocation methods characterized by comprising
Base station sends downlink resource to user equipment (UE) by the same subframe of a radio frames, and the downlink resource includes
The control information of PDCCH carrying and the data information of PDSCH carrying, so that control information of the UE according to the downlink resource
Obtain the data information；
Wherein, the downlink resource in the subframe of the radio frames is distributed according to default resource allocation policy；
The default resource allocation policy, comprising:
It is occupied in the continuous frequency point of whole logics in UE, PCFICH occupies the 1st of preceding 4 frequency points of the subframe of the radio frames
OFDM symbol；
It is occupied in the continuous frequency point of whole logics in UE, PHICH occupies the 2nd of preceding 4 frequency points of the subframe of the radio frames
OFDM symbol；
Occupied in whole continuous frequency points of logic in UE, PDCCH occupy the 3rd of preceding 4 subbands of the subframe of the radio frames to
npdcch+ 2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDSCH occupies the 5th of the subframe of the radio frames to N number of frequency point
Preceding 4 frequency points of OFDM symbol and the UE remove the 1st to npdcchOther OFDM symbols except+2 OFDM symbols；
Wherein, the subframe of the radio frames includes: N number of frequency point of predistribution, and N is the integer more than or equal to 4, the npdcchFor institute
State the quantity that the PDCCH carried in PCFICH occupies OFDM symbol.
2. the method according to claim 1, wherein the npdcchValue range be { 0,1 ... ..., 11 }.
3. a kind of base station characterized by comprising
Sending module sends downlink resource, the downlink to user equipment (UE) for the same subframe by a radio frames
Resource includes the control information of PDCCH carrying and the data information of PDSCH carrying, so that the UE is according to the downlink resource
Control data information described in acquisition of information；
Wherein, the downlink resource in the subframe of the radio frames is distributed according to default resource allocation policy；
The default resource allocation policy, comprising:
It is occupied in the continuous frequency point of whole logics in UE, PCFICH occupies the 1st of preceding 4 frequency points of the subframe of the radio frames
OFDM symbol；
It is occupied in the continuous frequency point of whole logics in UE, PHICH occupies the 2nd of preceding 4 frequency points of the subframe of the radio frames
OFDM symbol；
Occupied in whole continuous frequency points of logic in UE, PDCCH occupy the 3rd of preceding 4 subbands of the subframe of the radio frames to
npdcch+ 2 OFDM symbols；
It is occupied in whole continuous frequency points of logic in UE, PDSCH occupies the 5th of the subframe of the radio frames to N number of frequency point
Preceding 4 frequency points of OFDM symbol and the UE remove the 1st to npdcchOther OFDM symbols except+2 OFDM symbols；
Wherein, the subframe of the radio frames includes: N number of frequency point of predistribution, and N is the integer more than or equal to 4, the npdcchFor institute
State the quantity that the PDCCH carried in PCFICH occupies OFDM symbol.
4. base station according to claim 3, which is characterized in that the npdcchValue range be { 0,1 ... ..., 11 }.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510411999.3A CN106656439B (en) | 2015-07-14 | 2015-07-14 | Shared band downlink multi-subband resource allocation methods and base station |
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| CN201510411999.3A CN106656439B (en) | 2015-07-14 | 2015-07-14 | Shared band downlink multi-subband resource allocation methods and base station |
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| CN106656439A CN106656439A (en) | 2017-05-10 |
| CN106656439B true CN106656439B (en) | 2019-11-12 |
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| CN109246828B (en) * | 2017-07-11 | 2023-06-27 | 普天信息技术有限公司 | Downlink service processing method in multi-sub-band system, base station and user equipment |
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| WO2011004989A2 (en) * | 2009-07-08 | 2011-01-13 | 한국전자통신연구원 | Uplink receiving method for a base station and uplink transmitting method for a terminal using a shared wireless resource |
| CN102036297B (en) * | 2010-12-24 | 2013-08-14 | 大唐移动通信设备有限公司 | Method and equipment for transmitting PDCCH, method and equipment for detecting PDCCH, and system |
| JP5396427B2 (en) * | 2011-05-02 | 2014-01-22 | 株式会社Ｎｔｔドコモ | Radio base station apparatus, user terminal apparatus, radio communication system, and radio communication method |
| JP5616284B2 (en) * | 2011-05-02 | 2014-10-29 | 株式会社Ｎｔｔドコモ | Base station apparatus, mobile terminal apparatus, communication system, and communication method |
| CN102781095B (en) * | 2011-05-09 | 2015-07-29 | 华为技术有限公司 | The method of transfer of data, base station, subscriber equipment and system |
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