CN106912056A - A kind of 230MHz micro-base stations and its network-building method - Google Patents
A kind of 230MHz micro-base stations and its network-building method Download PDFInfo
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- CN106912056A CN106912056A CN201710232393.2A CN201710232393A CN106912056A CN 106912056 A CN106912056 A CN 106912056A CN 201710232393 A CN201710232393 A CN 201710232393A CN 106912056 A CN106912056 A CN 106912056A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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Abstract
The invention discloses a kind of 230MHz micro-base stations and its network-building method, wherein, the micro-base station includes：RF chips, processing circuitry of intermediate frequency and baseband chip；RF chips are used to for 230MHz signals to move Mid Frequency, generate intermediate-freuqncy signal and send to processing circuitry of intermediate frequency intermediate-freuqncy signal；Processing circuitry of intermediate frequency is used to sample intermediate-freuqncy signal, the intermediate-freuqncy signal after sampling is converted into baseband signal, and baseband signal is sent to baseband chip；Baseband chip is used to be modulated demodulation process to baseband signal.The 230MHz micro-base stations realize the design for being connected work, realizing 230MHz micro-base stations of tradition RF chips and baseband chip under 230MHz frequency ranges so that the 230MHz micro-base stations are suitable for power business by adding processing circuitry of intermediate frequency.
Description
Technical field
The present invention relates to wireless micro base stations technical field, more particularly to a kind of 230MHz micro-base stations and its network-building method.
Background technology
Current mobile communication experienced the development course of 2G, 3G, 4G, be born macro base station and the construction scheme of micro-base station.
These schemes are all based on public network frequency range, towards use pair as if people, be mobility and conversational nature the characteristics of its is main.
It is that discrete, not special micro-base station goes to solve this problem and electric power specific authorisation frequency range is in 230MHz.
At present, typical public network micro-base station is directed to Continuous Band, by general RF (Radio Frequency, nothing
Line radio frequency) chip and baseband chip can just complete the design of base station.Simple down conversion process is carried out by RF chips, it is possible to
Suitable for the frequency range that the mobile communication such as 1.8G, 900MHz are used.Mobile communication standard is applied to Global Subscriber, its maturity with it is suitable
It is very high with property degree, can using GPRS (General Packet Radio Service, general packet radio service technology),
FDD (Frequency Division Duplexing, FDD), TD_LTE (Time Division Long Term
Evolution, timesharing Long Term Evolution) etc. telecommunication path standard.
Public network base station system, either based on 1.8GHz or 900MHz, by general RF chips and baseband chip, just
The design of traditional public network base station can be completed.RF chips are responsible for high-frequency signal to be converted into baseband signal, and baseband chip is responsible for right
After baseband signal is modulated the signal transactings such as demodulation, the extraction work of data is completed.
230MHz frequency ranges are mainly made by industries such as the energy, army, meteorology, earthquake, water conservancy, Di Kuang, light industry, construction at present
With；Frequency is discrete, and electric power energy industry possesses 40 mandate frequencies, is the industry for authorizing frequency most.RF chips on public network
With the treatment work that baseband chip cannot complete discrete frequency range, the communication mode that it is used cannot inherit the networking side of public network
Formula, and the characteristic according to the characteristics of frequency range with power business is needed, and take different networks trategies.
230MHz wireless communication systems take discontinuous spectral bandwidth, and its schematic diagram is as shown in Figure 1.Each 25kHz is
One frequency, traditional baseband chip cannot tackle this frequency spectrum design, it is impossible to frequency range be divided, it is impossible to complete each frequently
Insulation blocking between point.
Meanwhile, in terms of networking, for networking modes such as FDD, TD_LTE, its protocol stack is excessively huge, for processor
Resource consumption it is excessive, mismatched with the distribution of 230MHz frequency spectrum resources.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the invention, without answering
In being considered as recognizing or imply in any form that the information structure has been the prior art well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of 230MHz micro-base stations and its network-building method, so as to overcome existing 230MHz without
Line communication system can not effective networking technical problem.
A kind of 230MHz micro-base stations provided in an embodiment of the present invention, including：RF chips, processing circuitry of intermediate frequency and base band core
Piece；The RF chips are used to for 230MHz signals to move Mid Frequency, generate intermediate-freuqncy signal and by the intermediate-freuqncy signal send to
Processing circuitry of intermediate frequency；The processing circuitry of intermediate frequency is used to sample the intermediate-freuqncy signal, and the intermediate-freuqncy signal after sampling is turned
Baseband signal is changed to, and the baseband signal is sent to baseband chip；The baseband chip is used to enter the baseband signal
Row modulation /demodulation is processed.
In a kind of possible implementation, the processing circuitry of intermediate frequency includes：Coagulation circuit, two stage treatment circuit
With tertiary treatment circuit；The coagulation circuit includes three the first separate numerically-controlled oscillators, and three the
One numerically-controlled oscillator is used to carry out segment processing to bandwidth, and reduces sample rate；The two stage treatment circuit includes multiple
The second separate numerically-controlled oscillator, each second numerically-controlled oscillator is used to receive the first corresponding numeral control
The intermediate-freuqncy signal that oscillator processed sends, and the intermediate-freuqncy signal is moved to zero frequency；The tertiary treatment circuit includes integration
Comb filter and multiple separate low pass filters, and the low pass filter and second numerically-controlled oscillator
Correspond, for processing corresponding intermediate-freuqncy signal.
In a kind of possible implementation, first numerically-controlled oscillator also includes half-band filter.
In a kind of possible implementation, the quantity of second numerically-controlled oscillator is 40.
Based on same inventive concept, the embodiment of the present invention also provides a kind of based on 230MHz micro-base stations as described above
Network-building method, including：230MHz signals are moved into Mid Frequency, and the 230MHz is converted into intermediate-freuqncy signal；In described
Frequency signal is sampled, and respectively moves to zero frequency the intermediate-freuqncy signal of the different sub-band after sampling, it is determined that initial base band letter
Number；Treatment is filtered to the initial baseband signal, it is determined that final baseband signal.
It is described respectively to move to zero-frequency the intermediate-freuqncy signal of the different sub-band after sampling in a kind of possible implementation
Rate, including：Respectively by sampling after the intermediate-freuqncy signal of 40 different sub-bands move to zero frequency.
In a kind of possible implementation, the method also includes：Sent by the frequency corresponding to one of subband
System broadcasts frame, data frame is sent by the corresponding frequency of other subbands；The system broadcasts frame possesses including micro-base station system
Frequency resource, be currently in use frequency number, each frequency carry terminal quantity, usable channel competition mode in one
Item is multinomial.
A kind of 230MHz micro-base stations provided in an embodiment of the present invention and its network-building method, by adding processing circuitry of intermediate frequency,
Realize the design for being connected work, realizing 230MHz micro-base stations of tradition RF chips and baseband chip under 230MHz frequency ranges.Knot
The band characteristic of 230MHz is closed, the processing circuitry of intermediate frequency of tertiary treatment is designed, discrete intermediate-freuqncy signal is moved to base band to be carried out
Treatment, so as to realize the conversion of intermediate-freuqncy signal and baseband signal so that the 230MHz micro-base stations are applied to power business.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with reality of the invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the spectrum diagram of 230MHz in the prior art；
Fig. 2 is the structure chart of 230MHz micro-base stations in the embodiment of the present invention；
Fig. 3 is the structure chart of processing circuitry of intermediate frequency in the embodiment of the present invention；
Fig. 4 is the network-building method flow chart of 230MHz micro-base stations in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Unless
Separately there are other to explicitly indicate that, otherwise in entire disclosure and claims, term " including " or its conversion such as "comprising" or
" including " etc. will be understood to comprise stated element or part, and not exclude other elements or other compositions
Part.
Special word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details are given in specific embodiment below.
It will be appreciated by those skilled in the art that without some details, the present invention can equally be implemented.In some instances, for
Method well known to those skilled in the art, means, element are not described in detail, in order to highlight purport of the invention.
According to embodiments of the present invention, there is provided a kind of 230MHz micro-base stations, it is shown in Figure 2, including：RF chips 10, in
Frequency process circuit 20 and baseband chip 30.
Wherein, RF chips 10 are used to for 230MHz signals to move Mid Frequency, generate intermediate-freuqncy signal and send out intermediate-freuqncy signal
Deliver to processing circuitry of intermediate frequency 20.Processing circuitry of intermediate frequency 20 is used to sample intermediate-freuqncy signal, and the intermediate-freuqncy signal after sampling is turned
Baseband signal is changed to, and baseband signal is sent to baseband chip 30；Baseband chip 30 is used to be modulated baseband signal solution
Mediate reason.
A kind of 230MHz micro-base stations provided in an embodiment of the present invention, by adding processing circuitry of intermediate frequency, realize in 230MHz
The design for being connected work, realizing 230MHz micro-base stations of tradition RF chips and baseband chip under frequency range.
Another embodiment of the present invention provides a kind of 230MHz micro-base stations, including the structure shown in Fig. 2, its realization principle and
Embodiment of the beneficial effect with reference to shown in Fig. 2.Additionally, in the embodiment of the present invention, the treatment of processing circuitry of intermediate frequency 20 comes from RF chips
I/Q data, the I/Q data are intermediate-freuqncy signal.Shown in Figure 3, processing circuitry of intermediate frequency 20 includes：Coagulation circuit
201st, two stage treatment circuit 202 and tertiary treatment circuit 203.
Wherein, coagulation circuit 201 includes three the first separate numerically-controlled oscillator NCO
(Numerically Controlled Oscillator), and three the first numerically-controlled oscillators are for being divided bandwidth
Section treatment, and reduce sample rate.Specifically, it is shown in Figure 1, because the frequency spectrum of 230MHz is distributed mainly on three regions, therefore
The bandwidth of 12M is averagely split using three the first numerically-controlled oscillator NCO in the embodiment of the present invention, not same district is processed respectively
The signal in domain.
Meanwhile, optionally, the first numerically-controlled oscillator also includes half-band filter, and data are reduced by half-band filter
Sample rate.It is, for example possible to use sampling clock for 12.8M AD (Analog-to-Digital) converter to intermediate-freuqncy signal
Sampled, afterwards by sample rate is reduced into 6.4M after half-band filter.
Two stage treatment circuit 202 includes multiple the second separate numerically-controlled oscillator NCO, each second numeral control
Oscillator processed is used to receive the intermediate-freuqncy signal that the first corresponding numerically-controlled oscillator sends, and intermediate-freuqncy signal is moved to zero
Frequency.In the embodiment of the present invention, due to 1/3rd regions in frequency spectrum shown in a first numerically-controlled oscillator Fig. 1,
Several frequencies are distributed with the region, are then shaken for first numerically-controlled oscillator distribution several corresponding second is digital control
Swing device；Frequency number i.e. according to the treatment of the first numerically-controlled oscillator distributes the second corresponding numerically-controlled oscillator.
Specifically, due in 230MHz frequency ranges electric power energy industry possess 40 mandate frequencies, therefore in the embodiment of the present invention
The quantity of the second numerically-controlled oscillator is set to 40, i.e., each second numerically-controlled oscillator individually processes a subband pair
The data answered, will the intermediate-freuqncy signal of the subband move base band and processed, the subband data on 40 tunnels before Base-Band Processing
Need to individually process；Each subband is a single OFDM (Orthogonal Frequency Division
Multiplexing, orthogonal frequency division multiplexi) system, by 10 frequency intervals for the subcarrier of 2KHz is constituted.
Tertiary treatment circuit includes integral comb filter CIC50 and multiple separate low pass filter LPF, and low
Bandpass filter and the second numerically-controlled oscillator are corresponded, for processing corresponding intermediate-freuqncy signal.In the embodiment of the present invention,
The integral comb filter (CIC, Cascade Integrator Comb) is used to reduce sample rate again.Using Integrator-Comb
Wave filter can reduce the operation times in filtering operation, be conducive to rapid computations, improve treatment effeciency.Low pass filter afterwards
(Low Pass Filter, LPF) is filtered treatment to the intermediate-freuqncy signal of each subband, so that it is determined that needed for baseband chip
Baseband signal.
Processing circuitry of intermediate frequency provided in an embodiment of the present invention is divided into tertiary treatment, and its course of work is specific as follows：RF chips
230M signals are moved into Mid Frequency, the first process circuit is entered using the AD that sampling clock is 12.8MHz to intermediate-freuqncy signal afterwards
Row sampling；Meanwhile, 12M bandwidth is averagely split using three independent NCO, by being reduced to sample rate after half-band filter
6.4MHz.In the two stage treatment circuit of the second level, 40 NCO for being operated in 6.4MHz are responsible for respectively removing 40 single subbands
Move on to zero frequency；Sample rate is then reduced to 128KHz by the downsampling filter of one-level CIC50, is operated in 128HzK's
40 low pass filters process 40 data of subband respectively.
A kind of 230MHz micro-base stations provided in an embodiment of the present invention, by adding processing circuitry of intermediate frequency, realize in 230MHz
The design for being connected work, realizing 230MHz micro-base stations of tradition RF chips and baseband chip under frequency range.With reference to the frequency of 230MHz
Section characteristic, designs the processing circuitry of intermediate frequency of tertiary treatment, discrete intermediate-freuqncy signal is moved to base band and is processed, so as to realize
The conversion of intermediate-freuqncy signal and baseband signal so that the 230MHz micro-base stations are applied to power business.
The embodiment of the present invention also provides a kind of network-building method of 230MHz micro-base stations, the structure and work(of the 230MHz micro-base stations
Can be as described above, shown in Figure 4, the network-building method includes：
Step 401：230MHz signals are moved into Mid Frequency, and 230MHz is converted into intermediate-freuqncy signal.
Step 402：Intermediate-freuqncy signal is sampled, and respectively moves to zero the intermediate-freuqncy signal of the different sub-band after sampling
Frequency, it is determined that initial baseband signal.
Step 403：Treatment is filtered to initial baseband signal, it is determined that final baseband signal.
The network-building method of a kind of 230MHz micro-base stations provided in an embodiment of the present invention, in 230MHz signals are converted to
Frequency signal, and then be converted to the manageable baseband signal of baseband chip, so as to realize the networking of 230MHz micro-base stations, the networking
Mode is simple, and suitable for power business.
Optionally, in above-mentioned steps 402, the intermediate-freuqncy signal of the different sub-band after sampling is moved to zero frequency, bag respectively
Include：Respectively by sampling after the intermediate-freuqncy signal of 40 different sub-bands move to zero frequency.Due to electric power energy in 230MHz frequency ranges
Industry possesses 40 mandate frequencies, therefore moves to zero-frequency 40 intermediate-freuqncy signals of different sub-band respectively in the embodiment of the present invention
Rate.
Meanwhile, system broadcasts frame is sent by the frequency corresponding to one of subband, by the corresponding frequency of other subbands
Point sends data frame.Specifically, the system broadcasts frame includes the frequency resource that micro-base station system possesses, the frequency being currently in use
One or more in terminal quantity, usable channel competition mode that number, each frequency are carried.Remaining 39 frequency conduct
Data transfer frequency, can be polymerized and use, it is also possible to be discrete to use.Situation, carrying electric power of each terminal according to broadcast frame
The characteristic of business, the quality of signal, select suitable frequency to add.
A kind of 230MHz micro-base stations provided in an embodiment of the present invention and its network-building method, by adding processing circuitry of intermediate frequency,
Realize the design for being connected work, realizing 230MHz micro-base stations of tradition RF chips and baseband chip under 230MHz frequency ranges.Knot
The band characteristic of 230MHz is closed, the processing circuitry of intermediate frequency of tertiary treatment is designed, discrete intermediate-freuqncy signal is moved to base band to be carried out
Treatment, so as to realize the conversion of intermediate-freuqncy signal and baseband signal so that the 230MHz micro-base stations are applied to power business.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, the part shown as unit can be or may not be physics list
Unit, you can with positioned at a place, or can also be distributed on multiple NEs.It can according to the actual needs be selected
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each implementation method can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to by hardware.Based on such understanding, on
Stating the part that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, should
Computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Order is used to so that a computer equipment (can be personal computer, server, or network equipment etc.) performs each implementation
Method described in some parts of example or embodiment.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (7)
1. a kind of 230MHz micro-base stations, it is characterised in that including：RF chips, processing circuitry of intermediate frequency and baseband chip；
The RF chips are used to for 230MHz signals to move Mid Frequency, generate intermediate-freuqncy signal and by the intermediate-freuqncy signal send to
Processing circuitry of intermediate frequency；
The processing circuitry of intermediate frequency is used to sample the intermediate-freuqncy signal, and the intermediate-freuqncy signal after sampling is converted into base band letter
Number, and the baseband signal is sent to baseband chip；
The baseband chip is used to be modulated demodulation process to the baseband signal.
2. micro-base station according to claim 1, it is characterised in that the processing circuitry of intermediate frequency includes：Coagulation circuit,
Two stage treatment circuit and tertiary treatment circuit；
The coagulation circuit includes three the first separate numerically-controlled oscillators, and three first digital control are shaken
Device is swung for carrying out segment processing to bandwidth, and reduces sample rate；
The two stage treatment circuit includes multiple the second separate numerically-controlled oscillators, each second digital control vibration
Device is used to receive the intermediate-freuqncy signal that the first corresponding numerically-controlled oscillator sends, and the intermediate-freuqncy signal is moved to zero-frequency
Rate；
The tertiary treatment circuit includes integral comb filter and multiple separate low pass filters, and the low pass filtered
Ripple device is corresponded with second numerically-controlled oscillator, for processing corresponding intermediate-freuqncy signal.
3. micro-base station according to claim 2, it is characterised in that first numerically-controlled oscillator also includes half band filter
Ripple device.
4. micro-base station according to claim 2, it is characterised in that the quantity of second numerically-controlled oscillator is 40.
5. a kind of network-building method of the 230MHz micro-base stations based on as described in claim 1-4 is any, it is characterised in that including：
230MHz signals are moved into Mid Frequency, and the 230MHz is converted into intermediate-freuqncy signal；
The intermediate-freuqncy signal is sampled, and respectively moves to zero frequency the intermediate-freuqncy signal of the different sub-band after sampling, really
Fixed initial baseband signal；
Treatment is filtered to the initial baseband signal, it is determined that final baseband signal.
6. method according to claim 5, it is characterised in that described respectively by the intermediate-freuqncy signal of the different sub-band after sampling
Move to zero frequency, including：
Respectively by sampling after the intermediate-freuqncy signal of 40 different sub-bands move to zero frequency.
7. method according to claim 5, it is characterised in that also include：
System broadcasts frame is sent by the frequency corresponding to one of subband, data are sent by the corresponding frequency of other subbands
Frame；The system broadcasts frame include micro-base station system possess frequency resource, be currently in use frequency number, each frequency carry
One or more in terminal quantity, usable channel competition mode.
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| CN201710232393.2A CN106912056B (en) | 2017-04-11 | 2017-04-11 | 230MHz micro base station and networking method thereof |
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| CN201710232393.2A CN106912056B (en) | 2017-04-11 | 2017-04-11 | 230MHz micro base station and networking method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494540A (en) * | 2018-04-14 | 2018-09-04 | 孙瑞玮 | A kind of physical layer frame structure based on 230 frequency range narrowband LTE |
| CN108600032A (en) * | 2018-05-10 | 2018-09-28 | 国家电网公司 | The network management of multiband equipment |
| CN111835367A (en) * | 2019-04-11 | 2020-10-27 | 华为技术有限公司 | Signal processing chip and communication device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515807A (en) * | 2008-02-21 | 2009-08-26 | 卓胜微电子（上海）有限公司 | Digital intermediate-frequency receiver |
| CN103248389A (en) * | 2013-04-19 | 2013-08-14 | 国家电网公司 | TD-LTE230MHz (Time Division Long Term Evolution 230MHz) based electric power wireless wideband radio frequency processing unit |
| CN103796201A (en) * | 2012-10-31 | 2014-05-14 | 国网电力科学研究院 | Electric power wireless broadband communication system based on TD-LTE 230 |
| CN103944632A (en) * | 2013-12-27 | 2014-07-23 | 哈尔滨安天科技股份有限公司 | Method and system for capturing and storing 315MHz or 433MHz wireless digital communication signal |
| CN104768190A (en) * | 2015-05-08 | 2015-07-08 | 北京南瑞智芯微电子科技有限公司 | Intermediate frequency signal processing device and method based on LTE230 |
| CN105208686A (en) * | 2015-10-15 | 2015-12-30 | 南京新联电子股份有限公司 | Aggregate multi-carrier wireless broadband radio frequency processing unit based on 230MHz dispersed frequency points |
-
2017
- 2017-04-11 CN CN201710232393.2A patent/CN106912056B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515807A (en) * | 2008-02-21 | 2009-08-26 | 卓胜微电子（上海）有限公司 | Digital intermediate-frequency receiver |
| CN103796201A (en) * | 2012-10-31 | 2014-05-14 | 国网电力科学研究院 | Electric power wireless broadband communication system based on TD-LTE 230 |
| CN103248389A (en) * | 2013-04-19 | 2013-08-14 | 国家电网公司 | TD-LTE230MHz (Time Division Long Term Evolution 230MHz) based electric power wireless wideband radio frequency processing unit |
| CN103944632A (en) * | 2013-12-27 | 2014-07-23 | 哈尔滨安天科技股份有限公司 | Method and system for capturing and storing 315MHz or 433MHz wireless digital communication signal |
| CN104768190A (en) * | 2015-05-08 | 2015-07-08 | 北京南瑞智芯微电子科技有限公司 | Intermediate frequency signal processing device and method based on LTE230 |
| CN105208686A (en) * | 2015-10-15 | 2015-12-30 | 南京新联电子股份有限公司 | Aggregate multi-carrier wireless broadband radio frequency processing unit based on 230MHz dispersed frequency points |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494540A (en) * | 2018-04-14 | 2018-09-04 | 孙瑞玮 | A kind of physical layer frame structure based on 230 frequency range narrowband LTE |
| CN108600032A (en) * | 2018-05-10 | 2018-09-28 | 国家电网公司 | The network management of multiband equipment |
| CN111835367A (en) * | 2019-04-11 | 2020-10-27 | 华为技术有限公司 | Signal processing chip and communication device |
| US11955996B2 (en) | 2019-04-11 | 2024-04-09 | Huawei Technologies Co., Ltd. | Signal processing chip and communications device |
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| Publication number | Publication date |
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| CN106912056B (en) | 2020-09-08 |
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