CN106257855A - A kind of method controlling information and date multiplexing in Frequency Division Multiplexing system - Google Patents
A kind of method controlling information and date multiplexing in Frequency Division Multiplexing system Download PDFInfo
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- CN106257855A CN106257855A CN201510346112.7A CN201510346112A CN106257855A CN 106257855 A CN106257855 A CN 106257855A CN 201510346112 A CN201510346112 A CN 201510346112A CN 106257855 A CN106257855 A CN 106257855A
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- China
- Prior art keywords
- control information
- information
- date
- frequency division
- data
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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
-
- 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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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of method that the present invention proposes to control information and date multiplexing in Frequency Division Multiplexing system, the method is: will control information multiplexing in data channel, control information is for indicating the demodulation parameter of data, and to control the data channel resource shared by information be pre-configured.The present invention, while reducing the complexity of sending and receiving end process physical channel, remains the motility controlling information and date configuration.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of Frequency Division Multiplexing system controls information and date
The method of multiplexing.
Background technology
Frequency division multiplexing (FDMA) technology is widely used in wireless communications.In traditional communication system,
Controlling information and date information to send the most over a different physical channel, first receiving terminal resolves control letter
Breath, it is thus achieved that the demodulation such as the resource location relevant to data message, MCS indicate, by these indication signalings,
It is properly received data message.Using traditional method, transmitting terminal and receiving terminal are required for supporting two set physical channels
Scheduling, send and resolve, process complexity, resource utilization is the highest.Therefore, it is intended that propose a kind of frequency division
The method controlling information and date multiplexing in multiplex system, it is possible to simplify the process of sending and receiving end, improves resource profit
Use efficiency.
Summary of the invention
The present invention proposes a kind of method controlling information and date multiplexing in Frequency Division Multiplexing system, and the method is:
By control information multiplexing in data channel, control information is used for indicating the demodulation parameter of data, and
Data channel resource shared by control information is pre-configured.
Preferably, described Frequency Division Multiplexing system uses OFDMA to send mode, and control information takies data letter
The frequency domain resource at two ends in road.
Preferably, described Frequency Division Multiplexing system uses OFDMA to send mode, and control information takies data letter
The one section of continuous frequency domain resource started most in road.
Preferably, described Frequency Division Multiplexing system uses SC-FDMA to send mode, controls information and date and mixes
Carry out DFT transform after conjunction and map to frequency domain resource, then generate time-domain symbol through IFFT over-sampling.
Preferably, described Frequency Division Multiplexing system uses SC-FDMA to send mode, controls information and date and divides
Do not carry out DFT transform and map to respective frequency domain resource, then generate time-domain symbol through IFFT over-sampling.
In said method, described control information can include the instruction of MCS, new biography data, HARQ process
Number, CQI, ACK/NACK etc. of redundancy versions, reverse link.
In said method, the modulating-coding controlling information and date can be separate.Further, control
Information can use fixing low-order-modulated coded system.Control information can use the power different from data
Controlling elements.
In said method, control information may indicate that the demodulation parameter of current data channel, it is also possible to instruction is solid
Determine the demodulation parameter of the data channel after time delay.
The multiplexing method controlling information and date provided by the present invention, processes physics letter reducing sending and receiving end
While the complexity in road, remain the motility controlling information and date configuration.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present invention, for those of ordinary skill in the art, is not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram controlling information and date multiplexing of embodiment 1；
Fig. 2 is that the frequency domain controlling information and date of embodiment 1 maps schematic diagram；
Fig. 3 is the method flow diagram controlling information and date multiplexing of embodiment 2；
Fig. 4 is that the frequency domain controlling information and date of embodiment 2 maps schematic diagram.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments；It should be noted that
In the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly fall into the scope of protection of the invention.
Embodiment 1:OFDMA system controls the multiplexing of information and date
The present embodiment is as a example by OFDMA system, and control information multiplexing, in data channel, is worked as instruction
The demodulation parameter of front data channel, the content controlling information can include the instruction of MCS, new biography data, HARQ
Process number, redundancy versions, CQI, ACK/NACK etc. of reverse link.
The present embodiment for the process strategy of modulating-coding is: the modulating-coding controlling information and date is the most only
Vertical, the information that controls uses fixing low-order-modulated coded system, to guarantee correctly to detect, the tune of data acquisition
Coded system processed is indicated by control information.
The process strategy that the present embodiment controls for power is: the MCS different according to controlling information and date,
And the different requirements to its bit error rate, control information can use the power control factor different from data.
The control information of present invention resource location shared by data channel is pre-configured, remaining resource
Position is for the transmission of data.For OFDMA system, pre-configured strategy can have two kinds of optimal ways:
(1) for obtaining frequency diversity, control information can take the frequency domain resource at two ends in data physical channel,
Use this resource distribution mode, the correct verification and measurement ratio of control information can be improved.(2) channel condition is good
In the case of, control information can take in data physical channel resource the one section of continuous frequency domain resource started most, has
It is beneficial to reduce the time delay controlling infomation detection.The present embodiment uses the first pre-configured strategy.
The method flow controlling information and date multiplexing of the present embodiment is as it is shown in figure 1, comprise the following steps:
101, control information and date and encode respectively and modulate；
102, control information and date and be multiplied with power control factor respectively；
103, information MAP will be controlled to reserved frequency domain position；
104, map data into residue frequency domain resource；
105, carry out IFFT over-sampling, add Cyclic Prefix, generate time-domain signal.
Present embodiment assumes that user's available resources totally 5 RB (Resource Block), then control information and
The frequency domain of data maps as in figure 2 it is shown, control information MAP to the two ends of whole available resources, and the most each 6
Individual subcarrier, takies totally one RB resource, and surplus resources is used for carrying data, and current data uses
MCS and retransmit relevant information by control information instruction.
Embodiment 2:SC-FDMA system controls the multiplexing of information and date
The present embodiment is as a example by SC-FDMA system, and control information multiplexing is in data channel, with embodiment
Unlike 1, the instruction of control information is the demodulation parameter of data channel after constant time lag.
The process strategy that the present embodiment controls for modulating-coding and power is same as in Example 1: control information
Separate with the modulating-coding of data, the information that controls uses fixing low-order-modulated coded system, to guarantee
Correct detection；The MCS different according to controlling information and date, and the different requirements to its bit error rate,
Control information can use the power control factor different from data.
The control information of present invention resource location shared by data channel is pre-configured, for
SC-FDMA system, pre-configured strategy can have two kinds of optimal ways: (1) controls information and date mixing
After carry out DFT transform and map to frequency domain resource, then generate time-domain symbol through IFFT over-sampling, it is thus achieved that whole
Diversity gain in individual frequency domain.(2) control information and date and carry out DFT transform respectively, map to each
Frequency domain resource, then through IFFT over-sampling generate time-domain symbol, although which can cause PAPR
Lifting, but advantageously reduce the detection time delay of control information.The present embodiment uses the pre-configured strategy of the second.
The method flow controlling information and date multiplexing of the present embodiment is as it is shown on figure 3, comprise the following steps:
201, control information and date and encode respectively and modulate；
202, control information and date and be multiplied with power control factor respectively；
203, control and data are carried out DFT transform respectively and re-maps to frequency domain；
204, carry out IFFT over-sampling, add Cyclic Prefix, generate time-domain signal.
Present embodiment assumes that user's available resources totally 25 RB, then control information and data respectively through coding
Modulation, power control and after DFT transform, and respective frequency domain maps as shown in Figure 4, with embodiment 1 not
With the instruction of, control information is the demodulating information of data after N number of TTI.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can
Completing with the hardware relevant by programmed instruction, aforesaid program can be stored in an embodied on computer readable and deposit
In storage media, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage
Medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CD.
Last it is noted that above example is only in order to illustrate technical scheme, rather than it is limited
System；Although the present invention being described in detail with reference to previous embodiment, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the method controlling information and date multiplexing in Frequency Division Multiplexing system, the method includes:
By control information multiplexing in data channel, control information is used for indicating the demodulation parameter of data, and
Data channel resource shared by control information is pre-configured.
Method the most according to claim 1, it is characterised in that:
Described Frequency Division Multiplexing system uses OFDMA to send mode, and control information takies two ends in data channel
Frequency domain resource.
Method the most according to claim 1, it is characterised in that:
Described Frequency Division Multiplexing system uses OFDMA to send mode, and control information takies in data channel and to open most
The one section of continuous frequency domain resource begun.
Method the most according to claim 1, it is characterised in that:
Described Frequency Division Multiplexing system uses SC-FDMA to send mode, carries out after controlling information and date mixing
DFT transform maps to frequency domain resource, then generates time-domain symbol through IFFT over-sampling.
Method the most according to claim 1, it is characterised in that:
Described Frequency Division Multiplexing system uses SC-FDMA to send mode, controls information and date and carries out respectively
DFT transform maps to respective frequency domain resource, then generates time-domain symbol through IFFT over-sampling.
One of method the most according to claims 1 to 5, it is characterised in that: described control information includes
The instruction of MCS, new biography data, HARQ process number, redundancy versions, CQI, ACK/NACK of reverse link.
One of method the most according to claims 1 to 5, it is characterised in that: control information and date
Modulating-coding is separate.
Method the most according to claim 7, it is characterised in that: the information that controls uses fixing low order
Modulation coding mode.
Method the most according to claim 7, it is characterised in that: the information that controls uses different from data
Power control factor.
One of method the most according to claims 1 to 5, it is characterised in that: control information instruction current
The demodulation parameter of the data channel after the demodulation parameter of data channel, or instruction constant time lag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346112.7A CN106257855A (en) | 2015-06-19 | 2015-06-19 | A kind of method controlling information and date multiplexing in Frequency Division Multiplexing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510346112.7A CN106257855A (en) | 2015-06-19 | 2015-06-19 | A kind of method controlling information and date multiplexing in Frequency Division Multiplexing system |
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| CN106257855A true CN106257855A (en) | 2016-12-28 |
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| CN201510346112.7A Withdrawn CN106257855A (en) | 2015-06-19 | 2015-06-19 | A kind of method controlling information and date multiplexing in Frequency Division Multiplexing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106953702A (en) * | 2017-03-29 | 2017-07-14 | 武汉米风通信技术有限公司 | A kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things transmitting frequency calibration method |
| CN108347273A (en) * | 2017-01-25 | 2018-07-31 | 华为技术有限公司 | A kind of data-reusing and data analysis method, apparatus and system |
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| CN103986567A (en) * | 2007-11-27 | 2014-08-13 | 日本电气株式会社 | Radio signal transmission device, radio signal transmission method, radio signal reception device, and radio signal reception method |
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| CN101578801A (en) * | 2006-11-01 | 2009-11-11 | 高通股份有限公司 | Multiplexing of control and data with varying power offsets in a SC-FDMA system |
| CN101617559A (en) * | 2007-01-09 | 2009-12-30 | 株式会社Ntt都科摩 | Base station, communication terminal, sending method and method of reseptance |
| CN103986567A (en) * | 2007-11-27 | 2014-08-13 | 日本电气株式会社 | Radio signal transmission device, radio signal transmission method, radio signal reception device, and radio signal reception method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108347273A (en) * | 2017-01-25 | 2018-07-31 | 华为技术有限公司 | A kind of data-reusing and data analysis method, apparatus and system |
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Application publication date: 20161228 |
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