CN108494540A - A kind of physical layer frame structure based on 230 frequency range narrowband LTE - Google Patents
A kind of physical layer frame structure based on 230 frequency range narrowband LTE Download PDFInfo
- Publication number
- CN108494540A CN108494540A CN201810334291.6A CN201810334291A CN108494540A CN 108494540 A CN108494540 A CN 108494540A CN 201810334291 A CN201810334291 A CN 201810334291A CN 108494540 A CN108494540 A CN 108494540A
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- China
- Prior art keywords
- field
- frequency range
- physical layer
- layer frame
- frame structure
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Classifications
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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
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
Abstract
The invention discloses a kind of physical layer frame structures based on 230 frequency range narrowband LTE, including：For uplink or the radio frames of downlink.Through the above way, the present invention is based on the physical layer frame structures of 230 frequency range narrowband LTE by using narrow band communication mode under 230MHz frequency ranges, the intersubband of narrowband every, on the important physicals layer design parameters such as sample rate designs and frame format designs, it is redesigned, the narrow band bandwidth of 25KHz is divided into 10 subcarriers, sample rate uses the sample rate of 128KHz, the communication LTE narrow band communications of the narrow band bandwidth of other 25KHz can be achieved, realize higher frequency efficiency, higher data transmission bauds, there are extensive market prospects in popularizing for the physical layer frame structure based on 230 frequency range narrowband LTE.
Description
Technical field
The present invention relates to the communications fields, more particularly to a kind of physical layer frame structure based on 230 frequency range narrowband LTE.
Background technology
With development communication technologies, LTE technologies have been widely used in all trades and professions, in 230MHz band frequency resources
Division is allocated to different industries department by 25KHz, and the characteristic for the frequency resource of 230MHz is more efficient using effective
Frequency bandwidth, improve data transfer bandwidth, much LTE communication scheme based on narrowband generates.
As the development LTE communication of the communications industry is communication mode leading in current industry, using the communication mode of LTE
Higher data bandwidth can be transmitted under limited bandwidth resources, due to current standard LTE using 20MHz,
10MHz, 5Mhz, 1.44MHz concentrate bandwidth criteria, for the use of the current frequency range dividing conditions of 230MHz, the acceptance of the bid of above collection
Standard is not all suitable for the communications band of 230MHz, so for the actual use situation and application scenarios of 230MHz frequency ranges, needs
Want customized LTE patterns.
Invention content
The invention mainly solves the technical problem of providing a kind of physical layer frame structures based on 230 frequency range narrowband LTE, lead to
Cross under 230MHz frequency ranges using narrow band communication mode, narrowband intersubband every the weight such as the design of, sample rate and frame format design
It wants in physical layer design parameter, is redesigned, the narrow band bandwidth of 25KHz is divided into 10 subcarriers, sample rate uses
The sample rate of 128KHz, it can be achieved that the narrow band bandwidth of other 25KHz communication LTE narrow band communications, realize higher frequency utilization
Rate, higher data transmission bauds can also be extended communication mode by way of such frame structure, will be multiple
The environment of 25KHz carries out the data transmission that the methods of carrier wave polymerization carries out more high bandwidth, in the object based on 230 frequency range narrowband LTE
Popularizing for reason layer frame structure has extensive market prospects.
In order to solve the above technical problems, the present invention provides a kind of physical layer frame structure based on 230 frequency range narrowband LTE, packet
It includes：For uplink or the radio frames of downlink,
Remember that 1/128000 second is Ts,
The radio frames include the first field and the second field, and first field, second field include several subframes
An at most special subframe, several subframes and the special subframe in first field, second field
Quantity and be 5, the special subframe includes the subframe for the domain DwPTS, GP, UpPTS,
Remember that 5 framing bits of the first field are respectively 0,1,2,3,4,5 framing bits of the second field of note are respectively 5
Position, 6,7,8,9,
It is 5040T when the downstream-to-upstream transfer point periodsWhen, first field, second field respectively include an institute
Special subframe is stated,
It is 10080T when the downstream-to-upstream transfer point periodsWhen, first field includes a special subframe, and described the
Two fields include special subframe described in zero,
0 of first field, 5 of the second field and DwPTS are for downlink transfer, UpPTS and immediately following after special subframe
Subframe be used for uplink.
In a preferred embodiment of the present invention, the length of the radio frames is denoted as Tf, it is 10080Ts。
In a preferred embodiment of the present invention, the length of the field is 5040Ts。
In a preferred embodiment of the present invention, the subframe, the length of the special subframe are 1008Ts。
In a preferred embodiment of the present invention, subcarrier spacing=2KHz of Traffic Channel PUSCH and PDSCH.
In a preferred embodiment of the present invention, when the physical layer frame structure based on 230 frequency range narrowband LTE is suitable for
Divide dual-mode.
The beneficial effects of the invention are as follows：The present invention is based on the physical layer frame structures of 230 frequency range narrowband LTE to pass through in 230MHz
It is set every the important physicals layer such as the design of, sample rate and frame format design using the intersubband of narrow band communication mode, narrowband under frequency range
It counts in parameter, is redesigned, the narrow band bandwidth of 25KHz is divided into 10 subcarriers, sample rate is adopted using 128KHz's
Sample rate, it can be achieved that the narrow band bandwidth of other 25KHz communication LTE narrow band communications, realize higher frequency efficiency, higher number
According to transmission speed, communication mode can also be extended by way of such frame structure, the environment of multiple 25KHz is carried out
The methods of carrier wave polymerization carries out the data transmission of more high bandwidth, in the universal of the physical layer frame structure based on 230 frequency range narrowband LTE
On have extensive market prospects.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the structural schematic diagram of one preferred embodiment of physical layer frame structure based on 230 frequency range narrowband LTE of the present invention.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, the embodiment of the present invention includes：
A kind of physical layer frame structure based on 230 frequency range narrowband LTE, including：For uplink or the radio frames of downlink,
Remember that 1/128000 second is Ts,
The radio frames include the first field and the second field, and first field, second field include several subframes
An at most special subframe, several subframes and the special subframe in first field, second field
Quantity and be 5, the special subframe includes the subframe for the domain DwPTS, GP, UpPTS,
Remember that 5 framing bits of the first field are respectively 0,1,2,3,4,5 framing bits of the second field of note are respectively 5
Position, 6,7,8,9,
It is 5040T when the downstream-to-upstream transfer point periodsWhen, first field, second field respectively include an institute
Special subframe is stated,
It is 10080T when the downstream-to-upstream transfer point periodsWhen, first field includes a special subframe, and described the
Two fields include special subframe described in zero,
0 of first field, 5 of the second field and DwPTS are for downlink transfer, UpPTS and immediately following after special subframe
Subframe be used for uplink.
Preferably, the length of the radio frames is denoted as Tf, it is 10080Ts。
Preferably, the length of the field is 5040Ts。
Preferably, the subframe, the length of the special subframe are 1008Ts。
Preferably, subcarrier spacing=2KHz of Traffic Channel PUSCH and PDSCH.
Preferably, the physical layer frame structure based on 230 frequency range narrowband LTE is suitable for TDD mode.
The uplink-downlink configuration that the radio frames are supported is as follows；
；To each subframe in a radio frames, it is exclusively used in the subframe of downlink transfer with " D " expression, " U " expression is exclusively used in
The subframe of row transmission, " S " indicate the special subframe for these three domains DwPTS, GP and UpPTS, the length of DwPTS and UpPTS
Degree is as follows；
| S special subframes configure | DwPTS | UpPTS | DwPTS, GP and UpPTS ratio |
| 0 | 720 Ts | 144 Ts | 10：2：2 |
| 1 | 144 Ts | 720 Ts | 2：2：10 |
, their length obedience DwPTS, GP and UpPTS total lengths are 1008Ts。
Advantageous effect the present invention is based on the physical layer frame structure of 230 frequency range narrowband LTE is：
By using the intersubband of narrow band communication mode, narrowband to be set every the design of, sample rate and frame format under 230MHz frequency ranges
It on the important physicals layer design parameters such as meter, is redesigned, the narrow band bandwidth of 25KHz is divided into 10 subcarriers, sampled
Rate using 128KHz sample rate, it can be achieved that the narrow band bandwidth of other 25KHz communication LTE narrow band communications, realize higher frequency
Rate utilization rate, higher data transmission bauds can also be extended communication mode by way of such frame structure, will be more
The environment of a 25KHz carries out the data transmission that the methods of carrier wave polymerization carries out more high bandwidth.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of physical layer frame structure based on 230 frequency range narrowband LTE, which is characterized in that including：For uplink or downlink
Radio frames,
Remember that 1/128000 second is Ts,
The radio frames include the first field and the second field, and first field, second field include several subframes
An at most special subframe, several subframes and the special subframe in first field, second field
Quantity and be 5, the special subframe includes the subframe for the domain DwPTS, GP, UpPTS,
Remember that 5 framing bits of the first field are respectively 0,1,2,3,4,5 framing bits of the second field of note are respectively 5
Position, 6,7,8,9,
It is 5040T when the downstream-to-upstream transfer point periodsWhen, first field, second field respectively include described in one
Special subframe,
It is 10080T when the downstream-to-upstream transfer point periodsWhen, first field includes a special subframe, and described the
Two fields include special subframe described in zero,
0 of first field, 5 of the second field and DwPTS are for downlink transfer, UpPTS and immediately following after special subframe
Subframe be used for uplink.
2. the physical layer frame structure according to claim 1 based on 230 frequency range narrowband LTE, which is characterized in that described wireless
The length of frame is denoted as Tf, it is 10080Ts。
3. the physical layer frame structure according to claim 1 based on 230 frequency range narrowband LTE, which is characterized in that the field
Length be 5040Ts。
4. the physical layer frame structure according to claim 1 based on 230 frequency range narrowband LTE, which is characterized in that the son
Frame, the special subframe length be 1008Ts。
5. the physical layer frame structure according to claim 1 based on 230 frequency range narrowband LTE, which is characterized in that business is believed
Subcarrier spacing=2KHz of road PUSCH and PDSCH.
6. the physical layer frame structure according to claim 1 based on 230 frequency range narrowband LTE, which is characterized in that described to be based on
The physical layer frame structure of 230 frequency range narrowband LTE is suitable for TDD mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334291.6A CN108494540A (en) | 2018-04-14 | 2018-04-14 | A kind of physical layer frame structure based on 230 frequency range narrowband LTE |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334291.6A CN108494540A (en) | 2018-04-14 | 2018-04-14 | A kind of physical layer frame structure based on 230 frequency range narrowband LTE |
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| CN108494540A true CN108494540A (en) | 2018-09-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162759A (en) * | 2020-01-06 | 2020-05-15 | 山东电力工程咨询院有限公司 | Filter optimization design method and system in carrier aggregation |
| CN112448801A (en) * | 2019-09-03 | 2021-03-05 | 普天信息技术有限公司 | Data transmission method and device of discrete multi-sub-band communication system |
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| CN101303356A (en) * | 2008-06-20 | 2008-11-12 | 许贤豪 | Method for screening monoclonal antibody suitable for detecting and purifying blood coagulation eighth factor |
| CN103558618A (en) * | 2013-11-12 | 2014-02-05 | 孙瑞玮 | Method for improving locating precision |
| US20150049601A1 (en) * | 2013-08-14 | 2015-02-19 | Centurylink Intellectual Property Llc | Ethernet Carrier Group Alarm (CGA) |
| CN106912056A (en) * | 2017-04-11 | 2017-06-30 | 国网新疆电力公司昌吉供电公司 | A kind of 230MHz micro-base stations and its network-building method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101303356A (en) * | 2008-06-20 | 2008-11-12 | 许贤豪 | Method for screening monoclonal antibody suitable for detecting and purifying blood coagulation eighth factor |
| US20150049601A1 (en) * | 2013-08-14 | 2015-02-19 | Centurylink Intellectual Property Llc | Ethernet Carrier Group Alarm (CGA) |
| CN103558618A (en) * | 2013-11-12 | 2014-02-05 | 孙瑞玮 | Method for improving locating precision |
| CN106912056A (en) * | 2017-04-11 | 2017-06-30 | 国网新疆电力公司昌吉供电公司 | A kind of 230MHz micro-base stations and its network-building method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112448801A (en) * | 2019-09-03 | 2021-03-05 | 普天信息技术有限公司 | Data transmission method and device of discrete multi-sub-band communication system |
| CN111162759A (en) * | 2020-01-06 | 2020-05-15 | 山东电力工程咨询院有限公司 | Filter optimization design method and system in carrier aggregation |
| CN111162759B (en) * | 2020-01-06 | 2023-04-28 | 山东电力工程咨询院有限公司 | Filter optimization design method and system in carrier aggregation |
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Application publication date: 20180904 |