CN107659343A - Millimeter wave cooperation transmission method and device - Google Patents
Millimeter wave cooperation transmission method and device Download PDFInfo
- Publication number
- CN107659343A CN107659343A CN201710894275.8A CN201710894275A CN107659343A CN 107659343 A CN107659343 A CN 107659343A CN 201710894275 A CN201710894275 A CN 201710894275A CN 107659343 A CN107659343 A CN 107659343A
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- millimeter
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- wave
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/026—Co-operative diversity, e.g. using fixed or mobile stations as relays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0426—Power distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A kind of millimeter wave cooperation transmission device and method; the real time emission status information of one or more low-frequency ranges is gathered from the baseband processing devices of low-frequency range first; then the time tag of low-band signal is extracted from real time emission status information; and non-ideal factor is obtained, COMPREHENSIVE CALCULATING goes out protection interval；Further according to protection interval and the transmission means of low-frequency range, corresponding transmitting block information under different mode is generated, protection interval is then added therebetween and generates millimeter-wave signal preferred emission section, exported by the baseband processing equipment of high band millimeter-wave signal；Described real time emission status information includes：The transmission means and time tag of low-frequency range.The present invention is before millimetre-wave attenuator is transmitted, the transmission means and time tag of low-frequency range communication are obtained in advance, and the launch window according to these information by site configuration millimetre-wave attenuator, transmitting efficiency is improved as far as possible in the case where not violating general power limitation.
Description
Technical field
The present invention relates to a kind of technology in wireless transmission field, and in particular to be one kind can be used for all kinds of general powers by
The multi-band signal transmitting website of limit, the including but not limited to Cellular Networks of multiband, wireless local (Wi-Fi) network and all kinds of
The millimeter wave cooperation transmission device and method of the scenes such as the heterogeneous network being made up of cellular network and WLAN.
Background technology
For the 5th Generation Mobile Communication System, because the site resource of mobile communications network is very limited, for net
Network covering performance low-frequency range (<6GHz) the high band millimetre-wave attenuator of communication and increase transmission rate is often deployed in identical
Website on, to save site resource.But corresponding to be, each website can launch the general power of radio wave signal
Often it is limited.It is independent to carry out on the premise of lacking low-frequency range conventional cellular communication and coordinating with high band millimetre-wave attenuator
Wireless signal transmission often breaks through the limitation of general power, so as to violate corresponding radio management stipulation.Prior art is led to
Cross various means timesharing switching is adjusted and optimized, but cause the number comprising terminal in the calculating processing of interior whole system
Extra computing resource is occupied according to increasing considerably for amount.
The content of the invention
The present invention is directed to deficiencies of the prior art, proposes a kind of millimeter wave cooperation transmission device and method,
Before millimetre-wave attenuator is transmitted, the transmission means and time tag of low-frequency range communication are obtained in advance, and are led to according to these information
The launch window of site configuration millimetre-wave attenuator is crossed, improves transmission effect as far as possible in the case where not violating general power limitation
Rate.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of millimeter wave cooperation transmission method, gathered first from the baseband processing devices of low-frequency range
The real time emission status information of one or more low-frequency ranges, then from real time emission status information extract low-band signal when
Between label, and obtain non-ideal factor, COMPREHENSIVE CALCULATING goes out protection interval；Further according to protection interval and the transmission means of low-frequency range,
Corresponding transmitting block information under different mode is generated, protection interval is then added therebetween and generates millimeter-wave signal and preferably send out
Section is penetrated, is exported by the baseband processing equipment of high band millimeter-wave signal.
Described real time emission status information includes：The transmission means and time tag of low-frequency range.
Described non-ideal factor includes：High band base band signal process speed and radio-frequency delay uncertainty.
Described transmission means includes but is not limited to：Under TDD (Time division duplex, time division multiplexing) pattern,
The proportioning situation of downstream transmission frame and the particular location of descending sub frame；FDD (Frequency division duplex, frequency division
Multiplexing) under pattern, the service condition of each descending carrier, including downlink discontinuous transmitting, carrier aggregation etc.；Carrier wave is in low-load
In the case of amount, the information related to downstream signal transmitting such as timeslot-level, sub-frame level and the shut-off situation of more long duration is carried out.
Described protection interval δ, set obtain in the following manner：δ=δacc+δpro+δdelay, wherein：δaccMarked for the time
The uncertainty that the precision deficiency of label is brought, δproThe uncertainty come for low frequency and high-frequency baseband signal processing speed different band,
δdelayFor low frequency and the uncertainty of high-frequency radio frequency processing delay.
Described millimeter-wave signal preferred emission section, i.e. signal emission controlling unit will be obtained from transmission information acquisition unit
Take low-frequency range transmission means and time tag, from protection interval control unit obtain protection interval size after, according to different
Transmission means and protection interval size, generate the transmitting block information of high band millimeter-wave signal, and align low-frequency range and high frequency
The time tag of section millimeter-wave signal.
Brief description of the drawings
Fig. 1 is the millimeter wave cooperation transmission schematic diagram of power limited；
Fig. 2 is system schematic of the embodiment of the present invention；
Fig. 3 is subframe proportioning and transmitting block information generation schematic diagram in embodiment under LTE TDD systems pattern " 0 "；
Fig. 4 is LTE FDD systems in embodiment, and transmitting block information generates schematic diagram；
Fig. 5 is this method schematic flow sheet；
Fig. 6 is that website violates the graph of a relation that general power limits probability and millimeter-wave random emission probability in embodiment；
Fig. 7 is millimeter wave emission probability and non-continuous mode and the graph of a relation of carrier aggregation in embodiment；
Fig. 8 is low-frequency range TDD system, pattern " 0 " transmission means, the signal transmitting schematic diagram of carrierfree shut-off；
Fig. 9 is low-frequency range FDD system, discontinuous transmission and carrier aggregation, the signal transmitting schematic diagram of carrierfree shut-off.
Embodiment
As shown in Fig. 2 the present embodiment includes：Be deployed in the base station side of mobile communications network transmission information acquisition unit,
Protection interval control unit and signal emission controlling unit, wherein：Transmit baseband signal of the information acquisition unit from low-frequency range
The real time emission status information of low-frequency range is obtained in processing equipment, protection interval control unit solves from real time emission status information
Analysis obtains the time tag of low-band signal transmission, and binding time label, high band base band signal process speed and radio frequency prolong
Slow uncertainty sets protection interval, and signal emission controlling unit is marked according to real time emission status information, protection interval and time
Label set millimeter-wave signal preferred emission section and exported to the baseband processing devices of millimere-wave band, so as to realize low-frequency range
Live collaboration with high band is transmitted.
Described baseband processing devices include but is not limited to：For handle cellular communication (GSM/CDMA/LTE),
The equipment of the processing of baseband signal such as WiFi communications, generally mapped by channel coding/decoding module, modulation /demodulation module, frame structure
Module and clock synchronization module etc. are formed.Typical model can include high pass X5, X7, X8, X10, X12 series LTE base band,
The Intel model LTE base band of XMM 7480, Huawei Hai Si Balong (Ba Long) series baseband etc..
Described real time emission status information includes：The transmission means and time tag of low-frequency range, transmission means therein
Including but not limited to：Under TDD (Time division duplex, time division multiplexing) pattern, the proportioning situation of downstream transmission frame
With the particular location of descending sub frame；Under FDD (Frequency division duplex, frequency division multiplexing) pattern, each descending load
The service condition of ripple, including downlink discontinuous transmitting, carrier aggregation etc.；Carrier wave in the case of low-load amount, carry out it is timeslot-level,
The information related to downstream signal transmitting such as shut-off situation of sub-frame level and more long duration.
The specific generation method in described millimeter-wave signal preferred emission section includes：1) in tdd mode, it is necessary to according to
Different up-downgoing proportionings；2) in the fdd mode, it is necessary to be launched according to downlink discontinuous, the information such as carrier aggregation；3) in carrier wave
In the case of shut-off (pattern for including TDD and FDD), by the section of carrier wave shut-off and 1) and 2) in identified transmitting section close
And the transmitting block information after being updated；4) insert protection interval, i.e., transmitting section start and at the end of, increase protect
Shield interval, so as to ensure launch section can in the case of time precision deficiency normal work.
1) in tdd mode, it is necessary to be matched according to different up-downgoings, generation transmitting block information.With LTE TDD systems
Exemplified by sub-frame configuration pattern " 0 ", as shown in figure 3, corresponding, transmitting section is mainly the configuring condition of its ascending-descending subframes
The section of uplink (i.e. the situation of the not outside transmission signal in terminal transmission signal, base station).
2) in the fdd mode, it is necessary to be launched according to downlink discontinuous, the information such as carrier aggregation, generation transmitting block information.
As shown in figure 4, in the case of carrier aggregation, secondary carrier is in the state do not launched in the period of non-carrier polymerization transmitting,
Therefore high band millimeter-wave signal can be allowed to be launched.In addition, it is in discontinuous transmission state in main carrier/secondary carrier
Under, also there is the not external transmission signal of certain period of time, this period can also be as the launch site of high band millimeter-wave signal
Between.
3) in the case where carrier wave turns off (pattern for including TDD and FDD), by the section of carrier wave shut-off and 1) and 2) in institute
The transmitting section of determination merges, the transmitting block information after being updated.
4) insert protection interval, i.e., transmitting section start and at the end of, increase protection interval, so as to ensure launch site
Between can in the case of time precision deficiency normal work.
As shown in Figure 1 and Figure 5, the present embodiment is related to the millimeter wave cooperation transmission method of said system, comprises the following steps：
Step 1：Transmission information acquisition unit will gather one or more low from the baseband processing devices of low-frequency range
The real time emission status information of frequency range.
In this method, it is (corresponding different upper that real time emission status information preferably includes transmission mode different in TDD system
Descending sub frame matches), the state of discontinuous transmission and the emission state of carrier aggregation in FDD system, if enable carrier wave pass
Disconnected pattern, and the information such as time tag of low-band signal.
Step 2：Protection interval control unit extracts the time tag of low-band signal from real time emission status information, and
Obtain non-ideal factor.
Described non-ideal factor can test acquisition before base station equipment is dispatched from the factory, and it includes but is not limited to：High band base
Band signal processing speed and radio-frequency delay uncertainty etc..
Step 3：The precision of analysing low frequency segment signal time tag is combined high band base band by protection interval control unit
All kinds of non-ideal factors such as conversion speed and radio-frequency delay uncertainty, calculate protection interval, i.e.,：δ=δacc+δpro+
δdelay。
Preferably, the uncertainty that the precision deficiency of described time tag is brought, including to different accuracy and non-ideal
Factor is directly added the upper limit of the time uncertainty of acquisition.
Step 4：Signal emission controlling unit will obtain protection interval from protection interval control unit, and be obtained from transmission information
Unit is taken to obtain the transmission means of low-frequency range.
Step 5：Transmission means according to protection interval and low-frequency range is generated high frequency band signal by signal emission controlling unit
Transmitting block information, and respectively perform step 5.1 to step 5.3 in any and step 5.4.
Step 5.1：Transmitting block information generation under tdd mode：Signal emission controlling unit judges the transmission of low-frequency range
In mode whether the indication signal containing tdd mode.In the case of containing tdd mode indication signal, transmission mode is extracted
Configured information, analyze the proportioning situations of ascending-descending subframes, and by for the sub-frame configuration of uplink into high band millimeter wave
Transmitting section.
Step 5.2：Transmitting block information generation under fdd mode：Signal emission controlling unit judges the transmission of low-frequency range
In mode whether the indication signal containing fdd mode.In the case of containing fdd mode indication signal, judge whether containing
The configured information of discontinuous transmission, and the region do not launched is configured to the transmitting section of high frequency millimeter ripple.For containing FDD moulds
In the case of formula indication signal and carrier aggregation indication signal, judge whether secondary carrier is in emission state, and by secondary carrier not
The section of transmitting is configured to the transmitting section of high band millimeter wave.
Step 5.3：Transmitting block information generation under carrier wave shutdown mode：Signal emission controlling unit judges low-frequency range
Whether signal is in the pattern of carrier wave shut-off.In the case of in carrier wave shutdown mode, the section that carrier wave turns off is configured to
The transmitting section of high band millimeter wave.
Step 5.4：Analysis transmitting block information, for each section of continuous transmitting section, beginning and knot in section
At beam time point, according to the protection interval size of protection interval control unit, protection interval is added, ultimately generates high band millimeter wave
Transmitting block information.
Step 6：The high band that the baseband processing unit of high band millimeter-wave signal generates according to signal emission controlling unit
Millimeter wave launches block information, launches high band millimeter-wave signal.
This method technique effect includes：
1) the general power limitation that website sends signal is strictly observed.Because millimeter wave is in the time interval for allowing transmitting
Transmitting so that the power that whole base station sends signal, which all controls, is specifying in the range of limitation, so as to strictly observe the wireless of correlation
Electrical power administrative provisions.For convenience of description, by taking LTE TDD system sub-frame configuration patterns " 0 " as an example, it is assumed that LTE signals
Transmission power is 20W, and the transmission power of millimeter wave is 20W, and the transmission power of base station is limited to 20W.Base station side is in sub-frame of uplink
And in the time of special subframe 50%, signal is not sent externally, millimeter-wave signal sends signal with random chance P, then disobeys
The probability of anti-website general power limitation, as shown in Figure 7.As seen from the figure, if millimeter wave is launched with random chance, probability exceedes
Power limit, the invention successfully solve this problem.
2) emission probability of millimetre-wave attenuator signal is added., should in the case where ensuring compliance with total emission power limitation
Invention can be effectively increased the emission probability of millimeter-wave signal.For convenience of explanation, it is illustrated with LTE FDD systems.It is high
Frequency millimeter-wave signal can be launched in the case of two kinds of discontinuous transmission and non-carrier aggregation, it is assumed that FDD system discontinuous transmission
Probability be P1, the probability of non-carrier aggregation is P2, makes P1=P2=α, then the emission probability of high frequency millimeter ripple such as Fig. 7 institutes
Show., can be by changing non-continuous mode and the probability of carrier aggregation under LTE fdd modes, to improve milli it can be seen from image
Decimetric emission probability.
3) system complexity is low.It is embodied in following three aspects：I) method used in the present invention is only needed in base station side
Do hardware deployment and software upgrading, it is not necessary to upgrading is updated at user equipment end, with very low lower deployment cost and very well
User equipment compatibility.Ii) present invention need not make improvements in baseband design, saved the extra of upgrading base station and opened
Pin.Iii) base station side is when sending millimeter-wave signal, it is only necessary to obtains the transmission information of low frequency LTE signals, is not related to real-time meter
Calculate.
4) it is applied widely.The technology of the present invention is the supplement to prior art, can be applied to current large number of LTE
TDD or LTE FDD base stations, there are larger marketing potentiality.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the principle of the invention and objective with difference
Mode local directed complete set is carried out to it, protection scope of the present invention is defined by claims and not by above-mentioned specific implementation institute
Limit, each implementation in the range of it is by the constraint of the present invention.
Claims (9)
1. a kind of millimeter wave cooperation transmission method, it is characterised in that gathered first from the baseband processing devices of low-frequency range
The real time emission status information of one or more low-frequency ranges, then from real time emission status information extract low-band signal when
Between label, and obtain non-ideal factor, COMPREHENSIVE CALCULATING goes out protection interval；Further according to protection interval and the transmission means of low-frequency range,
Corresponding transmitting block information under different mode is generated, protection interval is then added therebetween and generates millimeter-wave signal launch site
Between, exported by the baseband processing equipment of high band millimeter-wave signal；Described real time emission status information includes：Low-frequency range
Transmission means and time tag.
2. according to the method for claim 1, it is characterized in that, described transmission means includes：Tdd mode, fdd mode and load
Situation of the ripple in low-load amount.
3. according to the method for claim 1, it is characterized in that, described real time emission status information is included in TDD system not
The state of discontinuous transmission and the emission state of carrier aggregation in ratio of uplink subframe to downlink subframe together, FDD system, if enable load
Ripple shutdown mode, and the time tag of low-band signal.
4. according to the method for claim 1, it is characterized in that, described protection interval δ, set obtain in the following manner：δ
=δacc+δpro+δdelay, wherein：δaccThe uncertainty brought for the precision deficiency of time tag, δproFor low frequency and high-frequency baseband
The uncertainty that conversion speed different band is come, δdelayFor low frequency and the uncertainty of high-frequency radio frequency processing delay.
5. according to the method for claim 1, it is characterized in that, described millimeter-wave signal transmitting section, i.e. signal transmitting is controlled
Unit processed obtains by the transmission means that low-frequency range is obtained from transmission information acquisition unit and time tag, from protection interval control unit
After fetching protection gap size, according to different transmission means and protection interval size, the transmitting of high band millimeter-wave signal is generated
Block information, and the time tag of align low-frequency range and high band millimeter-wave signal.
6. method according to claim 1 or 5, it is characterized in that, described millimeter-wave signal launches the specific generation in section
Method includes：
1) in tdd mode, according to different up-downgoing proportioning generation transmitting block informations, wherein transmitting section is up biography
It is defeated, i.e. the section of the situation of the not outside transmission signal in terminal transmission signal, base station；
2) in the fdd mode, launched according to downlink discontinuous, carrier aggregation generation transmitting block information：For carrier aggregation
Situation, secondary carrier is in the state do not launched in the period of non-carrier polymerization transmitting, therefore allows high band millimeter-wave signal
Launched；
3) in the case where carrier wave turns off, by the section of carrier wave shut-off and 1) and 2) in identified transmitting section merge, obtain
Transmitting block information after renewal；
4) insert protection interval, i.e., transmitting section start and at the end of, increase protection interval, so as to ensure launch section energy
Enough normal works in the case of time precision deficiency.
7. the method according to claim 11, it is characterized in that, in the fdd mode, when main carrier/secondary carrier is in discontinuous
In the not external transmission signal period in emission state, the transmitting section as high band millimeter-wave signal.
8. according to the method for claim 1, it is characterized in that, described one or more low-frequency ranges, including collection are continuous
Multiple frequency ranges or transmission means and time tag in the discrete multiple frequency ranges of collection.
A kind of 9. millimeter wave cooperative transmission system, it is characterised in that including：It is deployed in the transmission of the base station side of mobile communications network
Information acquisition unit, protection interval control unit and signal emission controlling unit, wherein：Information acquisition unit is transmitted from low frequency
The real time emission status information of low-frequency range is obtained in the baseband processing devices of section, protection interval control unit is from real time emission
Parsing obtains the time tag of low-band signal transmission, and binding time label, high band base band signal process in status information
Speed and radio-frequency delay uncertainty set protection interval, and signal emission controlling unit is according to real time emission status information, protection
Interval and time tag set millimeter-wave signal to launch section and exported to the baseband processing devices of millimere-wave band, so as to real
The live collaboration transmission of existing low-frequency range and high band.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768592A (en) * | 2018-05-30 | 2018-11-06 | 南方科技大学 | Millimeter wave with compared with low frequency wireless communication joint transmission method and device |
| CN111480374A (en) * | 2018-10-17 | 2020-07-31 | Oppo广东移动通信有限公司 | Data packet transmission method and device |
| CN113890597A (en) * | 2021-11-08 | 2022-01-04 | 西南交通大学 | High-low frequency assisted unmanned aerial vehicle network coverage enhancement method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188594A (en) * | 2001-11-28 | 2008-05-28 | 富士通株式会社 | OFDM transmission method |
| CN101631316A (en) * | 2008-07-16 | 2010-01-20 | 中国移动通信集团公司 | Method and equipment for improving frequency spectrum utilization rate in TDD system |
| WO2013149651A1 (en) * | 2012-04-03 | 2013-10-10 | Nokia Siemens Networks Oy | Frame format in communications |
| CN104519576A (en) * | 2013-09-27 | 2015-04-15 | 北京三星通信技术研究有限公司 | Mobile terminal and data transmission method in wireless community |
| WO2016127405A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Data transmission method and device |
| CN106464336A (en) * | 2014-05-08 | 2017-02-22 | 高通股份有限公司 | Cooperative techniques between lower-frequency carriers and millimeter-wave channels for discovery and synchronization and beamforming |
| CN107041003A (en) * | 2016-02-03 | 2017-08-11 | 电信科学技术研究院 | A kind of downstream transmission resource allocation methods and device |
-
2017
- 2017-09-28 CN CN201710894275.8A patent/CN107659343B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188594A (en) * | 2001-11-28 | 2008-05-28 | 富士通株式会社 | OFDM transmission method |
| CN101631316A (en) * | 2008-07-16 | 2010-01-20 | 中国移动通信集团公司 | Method and equipment for improving frequency spectrum utilization rate in TDD system |
| WO2013149651A1 (en) * | 2012-04-03 | 2013-10-10 | Nokia Siemens Networks Oy | Frame format in communications |
| CN104519576A (en) * | 2013-09-27 | 2015-04-15 | 北京三星通信技术研究有限公司 | Mobile terminal and data transmission method in wireless community |
| CN106464336A (en) * | 2014-05-08 | 2017-02-22 | 高通股份有限公司 | Cooperative techniques between lower-frequency carriers and millimeter-wave channels for discovery and synchronization and beamforming |
| WO2016127405A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Data transmission method and device |
| CN107041003A (en) * | 2016-02-03 | 2017-08-11 | 电信科学技术研究院 | A kind of downstream transmission resource allocation methods and device |
Non-Patent Citations (2)
| Title |
|---|
| ROMAN ODARCHENKO ET AL.: "OFDM signal formation with adaptive guard interval duration change", 《2015 SECOND INTERNATIONAL SCIENTIFIC-PRACTICAL CONFERENCE PROBLEMS OF INFOCOMMUNICATIONS SCIENCE AND TECHNOLOGY (PIC S&T)》 * |
| 褚宏云: "超高速毫米波无线通信网中继关键技术研究", 《中国博士学位论文全文数据库 信息科技辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768592A (en) * | 2018-05-30 | 2018-11-06 | 南方科技大学 | Millimeter wave with compared with low frequency wireless communication joint transmission method and device |
| CN108768592B (en) * | 2018-05-30 | 2021-07-06 | 南方科技大学 | Millimeter wave and lower frequency wireless communication joint transmission method and device |
| CN111480374A (en) * | 2018-10-17 | 2020-07-31 | Oppo广东移动通信有限公司 | Data packet transmission method and device |
| CN111480374B (en) * | 2018-10-17 | 2022-01-11 | Oppo广东移动通信有限公司 | Data packet transmission method and device |
| CN113890597A (en) * | 2021-11-08 | 2022-01-04 | 西南交通大学 | High-low frequency assisted unmanned aerial vehicle network coverage enhancement method |
| CN113890597B (en) * | 2021-11-08 | 2022-05-31 | 西南交通大学 | High-low frequency assisted unmanned aerial vehicle network coverage enhancement method |
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| Publication number | Publication date |
|---|---|
| CN107659343B (en) | 2020-10-23 |
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