CN103096326B - It is a kind of to suppress channel arrangement method and system with external leakage interference - Google Patents
It is a kind of to suppress channel arrangement method and system with external leakage interference Download PDFInfo
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- CN103096326B CN103096326B CN201110344940.9A CN201110344940A CN103096326B CN 103096326 B CN103096326 B CN 103096326B CN 201110344940 A CN201110344940 A CN 201110344940A CN 103096326 B CN103096326 B CN 103096326B
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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
- H04W16/14—Spectrum sharing arrangements between different networks
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- 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
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Abstract
The invention discloses a kind of channel arrangement method with external leakage interference and system, the application method for solving existing guard band of suppressing cannot reduce the technical problem of the protection bandwidth between the particular system.The ground TV broadcast transmission channel of low-power shares site with land mobile communication system in use of the present invention; the generation with external leakage power of traditional high-power ground broadcast transmitter is avoided, so as to significantly reduce the protection bandwidth between ground TV broadcast frequency band and land mobile communication system；A part of frequency band in the frequency band used at shared site by the use of planning to mobile communication up channel isolates frequency band between low-power terrestrial broadcasting transmission channel and the land mobile communication system up channel at shared site, low power transmissions terrestrial broadcasting transmission channel with interference of the external leakage power to mobile communication up channel in reduction.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of suppress the channel arrangement method with external leakage interference and be
System.
Background technology
Usual ground TV broadcast uses radio-frequency power to realize large region overlay for thousands of watts to hundreds of kilowatts of transmitter,
This high-power transmitter can produce strong band external leakage power, and strong band external leakage power can be to being deployed in adjacent or adjacent frequency bands
On mobile communication base station uplink receiving channel produce strong jamming, or even obstruction base station receiver.It is directed to this at present
Some actual test researchs are completed in the intensity of kind interference and distribution, and test shows：When the power of terrestrial television transmitter is hundreds of
Kilowatt hour, in from 10 kilometer range of television transmitter, the band external leakage power (OOB of television transmitter:out of band
Emission) in the range of -30dBm~60dBm, this power significantly exceed the mobile radio communication network planning requirement -
90dBm~45dBm.
In the case of ground TV broadcast transmitter and time division duplex mobile communication base station adjacent frequency configurating channel, Huo Zhe
During with the up channel operated adjacent of FDD system, the band external leakage power of the ground TV broadcast transmitter connects base station
Receipts machine produces severe jamming, and this interference can reduce the up-link capacity of system, reduces uplink coverage, or even obstruction uplink connects
Receive passage.
Traditional curb transmitter is between the receiver on transmitter and adjacent frequency to the adjacent frequency jamming countermeasure of receiver
Configure a fixed protection band, such as, configured bandwidth be 5MHz protection band, this method it is definite be protection band introducing
Frequency spectrum service efficiency is reduced, particularly the land mobile on adjacent or adjacent frequency bands is led in ground TV broadcast transmitter
The uplink interference of system base-station is believed, since the high-power or superpower transmitter that ground TV broadcast uses produces very strong band
External leakage power, in order to suppress this interference with external leakage power, it is necessary to be connect in transmission of television channel with land mobile
The protection band much larger than 5MHz bandwidth is introduced between collection of letters road, this results in the further reduction that frequency spectrum uses.
Number of patent application, which is CN200910076542.6, entitled " a kind of application method of guard band and to set
It is standby ", disclose following 4 kinds of frequency spectrum usage modes：
(1) first base station in TDD system sets the first frequency resource allocation in uplink guard band to the first user
Standby and down distributing resource scheduling information, guard band of the uplink guard band between FDD uplink bands and TDD frequency ranges；The
One base station the first user equipment of reception is carried in upstream time unit according to resource scheduling information in first frequency resource to be sent out
The upstream data sent；Downlink data is carried in downgoing time unit and is sent to first by first base station in second frequency resource
User equipment, the second frequency resource include the frequency money in frequency resource and/or TDD frequency ranges in downlink guard band
Source；
(2) first base station in TDD system sends out the second frequency resource in downlink guard band to the first user equipment
Data are sent, the downlink guard band is the guard band between TDD frequency bands and FDD downstream bands；First user equipment is first
The upstream data sent in upstream time unit is carried in frequency resource；The first frequency resource includes uplink guard band
Frequency resource in interior frequency resource and/or TDD frequency ranges；
(3) first base station in TDD system sets the first frequency resource allocation in uplink guard band to the first user
Standby and down distributing resource scheduling information；First base station the first user equipment of reception is according to resource scheduling information in first frequency resource
It is carried on the upstream data sent in upstream time unit；Under downlink data is carried on by first base station in second frequency resource
The first user equipment is sent in row time quantum, the second frequency resource includes the frequency resource in downlink guard band
And/or the downstream frequency resource in FDD frequency ranges；
(4) terminal in FDD system is as the protection between the FDD downstream bands of second frequency resource and TDD frequency bands
Take reception data；The terminal sends data in first frequency resource to base station, and described the includes uplink with frequency resource
The upstream frequency resource in frequency resource and/or FDD frequency ranges in guard band；
The existing method using guard band be on the premise of a definite bandwidth, to this definite bandwidth do into
The utilization of one step, can not reduce the width of protection band.
The shortcomings that number of patent application is CN200910076542.6 be：There can only be specific frequency to existing particular system
The protection band of bandwidth is further to be utilized, it is impossible to reduces the protection bandwidth between the particular system.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of channel arrangement method for suppressing to disturb with external leakage,
, can only be the existing protection band with special frequency band width particular system for solving the application method of existing guard band
It is further to be utilized, it is impossible to reduce the technical problem of the protection bandwidth between the particular system.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of to suppress the channel arrangement method with external leakage interference, this method includes：
In the first geographic area that second band is covered, one is disposed on the first sub-band that first band includes
For group with middle power and/or the first transmission channel of low power transmissions, first sub-band is close or adjacent with second band,
The first band belongs to the planning frequency band of ground TV broadcast system, and the second band belongs to land mobile communication system
Plan frequency band；
Determine one group of site as ground from the site that land mobile base station uses in first geographic area
The shared site of surface TV broadcast transmitting antenna and land mobile antenna for base station；
At the shared site, the first transmission channel is configured on first sub-band, in the second band
The second sub-band on configure the first receiving channel, between first sub-band and second sub-band exist belong to second
3rd sub-band of frequency band.
Further, the 3rd sub-band is adjacent with second sub-band, and the 3rd sub-band is non-common
The frequency band that the second uplink receiving channel at site uses is enjoyed, second uplink receiving channel exists for land mobile base station
The passage for the signal that receiving terminal is sent on 3rd frequency band.
Further, second sub-band and the 3rd sub-band planning are used to frequency division multiplexing FDD system
Upstream band either plans the frequency band used to time division multiplexing TDD system.
Further, at the shared site, first transmission channel is using the first transmitting antenna described first
Launched on sub-band, first receiving channel is received using the first reception antenna on second sub-band；
When the distance between the shared site and described unshared site for deploying the second uplink receiving channel are less than
During default threshold value, the first transmitting antenna on shared site is deployed separately with the first reception antenna on shared site to use
Antenna, and be not present in the main beam coverage of the first transmitting antenna and site shared where first transmitting antenna
Relative distance is less than predetermined threshold value and the unshared site of the second uplink receiving channel is configured with the 3rd sub-band.
Further, in first geographic area, station is shared at one group on first sub-band using configuration
The first transmission channel at location launches terrestrial television broadcast signal with identical frequency；
Further, the one or more of the method also as follows are applied in combination first sub-band：
The frequency spectrum resource of the first sub-band is coordinated between adjacent shared site, by the first sub-band in one group of phase
It is used for the downlink transfer in different districts in a manner of the time-division between the cell of the shared site covering of neighbour；
The frequency spectrum resource of the first sub-band is coordinated between adjacent shared site, by the first sub-band in one group of phase
For the downlink transfer in different districts in a manner of soft-frequency reuse between the cell of neighboring station location covering；
Carrier aggregation transmission is carried out in the downstream bands that the first sub-band and second band include, i.e., using the first sub-band
On the descending carrier that includes of carrier wave and second band at the same time to same terminal transmission data；
Business datum is sent to terminal in a manner of point-to-point on the first sub-band, is sent out on the second sub-band to network side
Send the feedback data or control data of the business datum.
Further, one kind transmitting letter of first transmission channel of the configuration on the first sub-band as follows
Number：
(1) on the first sub-band using first carrier and television broadcasting wireless technology specifications electricity is sent to television receiver
While depending on broadcast singal, signal is sent to mobile communication receiver using the second carrier wave and mobile communication wireless technical specification；
(2) on the first sub-band in first time section using television broadcasting wireless technology specifications to television receiver
Television broadcasting signal is sent, is sent in the second time interval using mobile communication wireless technical specification to mobile communication receiver
Signal, first time section and the second time interval value range between several minutes or a few hours.
Further, the method further includes the step being monitored as follows to the terrestrial television broadcast signal of the first sub-band
Suddenly：
In the geographic area of the first transmitting antenna covering, at least one television broadcasting channel monitoring device is disposed, it is described
Monitoring device receives the signal sent by the first transmission channel in first band.
Further, the method further includes the step being monitored as follows to the terrestrial television broadcast signal of the first sub-band
Suddenly：
In the geographic area of the first transmitting antenna covering, at least one television broadcasting channel monitoring device is disposed, it is described
While monitoring device receives the signal sent by the first transmission channel in first band, obtained also by wire transmission passage
Broadcast code stream to be measured in first band, the signal received from wireless channel and wire message way is contrasted, and is determined from the
The transmission quality of the signal received on one frequency band；Alternatively,
In the geographic area of the first transmitting antenna covering, at least one television broadcasting channel monitoring device is disposed, it is described
Monitoring device receives the television broadcasting signal sent by the first transmission channel or measuring signal in first band, to the electricity
One or more depending on broadcast singal or the following parameter of measuring signal measure：
1) signal reaches the power at monitoring device；
2) signal of the first transmission channel transmitting at different sites reaches the arrival time at monitoring device；Also by having
Line transmission channel obtains the broadcast code stream to be measured in first band；
3) bit error rate when at detection device to radio TV signals receiving；Detection device reports the above-mentioned parameter that measurement obtains
To network side.
Suppress the channel arrangement method with external leakage interference based on provided by the invention, the present invention also provides one kind to suppress band
The channel configuration system of external leakage interference, in the system, the second sub-band or/and the 3rd son frequency are used in land mobile communication network
With in the first geographic area for implementing covering, definite one group of site is as ground in the site used from land mobile base station
Television broadcasting and the shared site of land mobile communication network；
The system further includes at least one the first transmission channel being deployed on the first sub-band, is deployed in the second sub-band
On the first receiving channel, the first transmission channel is with middle power and/or low power transmissions television broadcasting signal, the first son frequency
There are one among band and second sub-band to isolate frequency band, is included in the isolation frequency band and is configured with land mobile system
3rd sub-band of system up channel.
Further, the second sub-band and the 3rd sub-band are that frequency division multiplexing FDD system is given in planning in the system
The upstream band used either plans the frequency band used to time division multiplexing TDD system.
Further, in the system, at the shared site, first transmission channel uses the first transmitting antenna
Launched on first sub-band, first receiving channel is using the first reception antenna on second sub-band
Received；
When the distance between the shared site and described unshared site for deploying the second uplink receiving channel are less than
During default threshold value, the first transmitting antenna on shared site is deployed separately with the first reception antenna on shared site to use
Antenna, and be not present in the main beam coverage of the first transmitting antenna and site shared where first transmitting antenna
Relative distance is less than predetermined threshold value and the unshared site of the second uplink receiving channel is configured with the 3rd sub-band；Described
Two uplink receiving channels for the land mobile base station signal that receiving terminal is sent on a third band passage.
Further, in the system, first transmission channel of the configuration on the first sub-band as follows it
One kind transmitting signal：
(1) on the first sub-band using first carrier and television broadcasting wireless technology specifications electricity is sent to television receiver
While depending on broadcast singal, signal is sent to mobile communication receiver using the second carrier wave and mobile communication wireless technical specification；
(2) on the first sub-band in first time section using television broadcasting wireless technology specifications to television receiver
Television broadcasting signal is sent, is sent in the second time interval using mobile communication wireless technical specification to mobile communication receiver
Signal, first time section and the second time interval value range between several minutes or a few hours.
Based on the embodiment of the present invention, the present invention also provides a kind of side for suppressing launch channel docking collection of letters road out-of-band interference
Method, this method suppress the channel arrangement method with external leakage interference based on provided by the invention, and the uplink for suppressing terminal is sent out
Interference of the channel strip external leakage power to the broadcast TV reception channel in same terminal is penetrated, this method includes：
Terminal carries out television broadcasting signal reception on one or more time slot in television broadcasting radio frames, and will
The time slot position for carrying out television broadcasting signal reception or time-gap number information reporting are to network side；Terminal is without electricity
Depending on sending signal, or the progress electricity that network side is reported according to terminal to network side in the time interval of broadcast signal reception
Depending on the gap information of broadcast signal reception, control terminal is in the time interval received without television broadcasting signal to network side
Send signal；Or
Terminal carries out television broadcasting signal reception, and terminal on one or more time slot in television broadcasting radio frames
While television broadcasting signal reception is carried out uplink signal is sent to network side；The uplink signal is sent out in a manner of short packages
Send, when the short packages refer to that the time span for continuously transmitting data occupancy is less than the decline that television broadcasting channel can be born
Between length.
Based on the present invention also provides a kind of terminal, which is in provided by the invention and suppresses the channel with external leakage interference
In configuration system, one or more time slot which includes from the television broadcasting radio frames sent by the first sub-band is enterprising
Row television broadcasting signal receive, and by it is described progress television broadcasting signal reception time slot position or time-gap number information reporting
To network side, terminal sends signal, or network side in the time interval received without television broadcasting signal to network side
The gap information of the carry out television broadcasting signal reception reported according to the terminal, controls the terminal without television broadcasting
In the time interval that signal receives signal is sent to network side；Or
The terminal carries out television broadcasting signal reception on one or more time slot in television broadcasting radio frames, and
While carrying out television broadcasting signal reception uplink signal is sent to network side；The uplink signal is sent out in a manner of short packages
Send, when the short packages refer to that the time span for continuously transmitting data occupancy is less than the decline that television broadcasting channel can be born
Between length.
By the present invention in that the ground TV broadcast transmission channel of low-power shares station with land mobile communication system in
This deployment way in location, avoids the generation with external leakage power of traditional high-power super high power ground broadcast transmitter；
It is (of the present invention by a part of frequency band in the frequency band used at site using planning to mobile communication up channel is shared
The 3rd sub-band) the land mobile communication system uplink as at low-power terrestrial broadcasting transmission channel and shared site believes
Isolation frequency band between road, reduce further the band external leakage power of middle low power transmissions terrestrial broadcasting transmission channel to mobile logical
Believe the interference of up channel, and the part in the frequency band used as the planning for isolating frequency band to mobile communication up channel is frequently
Band can be shared the site outside site or be used by the site of other operator again；
By above-mentioned measure, the transmission power generation of traditional super high power ground TV broadcast transmitter is significantly reduced
Band external leakage, so as to significantly reduce the protection bandwidth between ground TV broadcast frequency band and land mobile communication system, carries
High frequency spectrum service efficiency.Superpower transmitter is substituted with the ground broadcast transmitter of middle low-power distributed deployment, may be used also
To avoid harsh requirement is proposed to transmitter strap external leakage index, it is easy to reduce the cost of transmitter.
Brief description of the drawings
Fig. 1 is a kind of channel arrangement method flow chart for suppressing to disturb with external leakage provided by the invention；
Fig. 2 is broadcast channel and mobile communication up channel configuration mode schematic diagram at shared site；
Fig. 3 is broadcast channel and mobile communication up channel configuration mode example.
Embodiment
Basic thought of the present invention is：Pass through the networking mode and land mobile communication system to terrestrial television broadcast system
The channel configuration mode of base station is adjusted, and is produced to reduce the transmission power of traditional super high power ground TV broadcast transmitter
Band external leakage, so as to reduce the protection bandwidth between ground TV broadcast frequency band and land mobile communication system, improve
Frequency spectrum service efficiency.
The term employed in the present invention is illustrated below：
(1) first band：Refer to the planning frequency band for belonging to ground TV broadcast system；
(2) second band：Refer to the planning frequency band for belonging to land mobile communication system.Second band includes the upper line frequency of FDD
Band includes the frequency band used in a manner of TDD；
(3) first sub-bands：Refer to the sub-band adjacent with second band or similar included in first band, first
The first transmission channel is configured on sub-band, the first transmission channel covers at least one ground TV broadcast channel；
(4) second sub-bands：Refer to the sub-band included in second band, be that the configuration land mobile that second band includes leads to
Believe the frequency band of system uplink channel；
(5) the 3rd sub-bands：3rd sub-band is adjacent with the second sub-band, is all that the configuration land that second band includes is moved
The frequency band of dynamic communication system up channel；The upstream band or include the frequency used in a manner of TDD that second band includes FDD
Band；
(6) frequency band is isolated between the ground TV broadcast system of planning and land mobile communication system：Included in second
In frequency band, between first band and the 3rd sub-band, according to spectrum management rule, the frequency band is as suppressing first band and the
The planning frequency band disturbed between two frequency bands；
(7) site is shared：The shared site of ground TV broadcast system and land mobile communication system, i.e., at same station
Location, which is in first band, to be deployed ground TV broadcast down channel and deploys land mobile over a second frequency band
The site of system uplink channel；
(8) co-sited deployment isolation frequency band：Frequency band among first band and second band, the frequency band include the 3rd son
Frequency band.Co-sited deployment isolation frequency band is following one kind：1) it is a frequency band for including the 3rd sub-band；2) it is comprising the 3rd son frequency
Isolate frequency band between the ground TV broadcast system and land mobile communication system of band and planning.
(9) the 3rd frequency bands：For the nearby frequency bands of second band, the base station at unshared site configures on a third band
Row channel, the sub-band isolated frequency band and included is disposed by co-sited；
(10) first geographic areas, refer to land mobile communication network and implement to cover using the second sub-band or/and the 3rd sub-band
The region of lid.
The present invention is adjusted and to land mobile communication system base station the networking mode of terrestrial television broadcast system
Channel configuration mode is adjusted comprising following 3 aspects：
1) low-powered transmitter realizes single frequency network in distributed deployment on ground TV broadcast frequency band；
2) middle low power television broadcast transmitter and land mobile communication system co-sited are disposed；
3) up channel and the middle low-power ground TV broadcast of co-sited deployment in land mobile communication system base station are sent out
Frequency band is isolated in setting between penetrating machine, is leaked to reduce ground TV broadcast channel to the band of land mobile base station up channel
Leakage interference, so as to reduce the band for isolating frequency band between ground TV broadcast channel and land mobile base station up channel
It is wide；
Further, by way of spatial reuse, by the planning in the isolation frequency band to land mobile
System is used for the frequency band of the up channel of base station, configures in being configured without on the site of low-power terrestrial television transmitter, real
Now to planning efficiently using to the uplink spectrum of mobile communication.
The present invention will be changed to use power in one group using the ground TV broadcast coverage mode of high-power centralization transmitting
Or after low power transmitter carries out the ground TV broadcast coverage mode of distributed emission, a problem of generation is：Problem
1：How economically to realize that the deployment of numerous middle power either low-powered transmitter is included how as power in these or small
Power transmitter select site and how for power in these or low power transmitter structure transmission network, solve the problems, such as this
A kind of method is that middle power or low-powered transmitter are deployed in the base station of land mobile communication system, is led to land mobile
Letter system shares site；Alternatively, further, share transmission network.The problem of shared site is further drawn be：Problem 2：How
Solve to be deployed in the ground TV broadcast transmitter at the same site of land mobile communication system to land mobile communication system
The interference of the reception channel of base station, solving the problems, such as a kind of this method is：In the down channel of ground TV broadcast transmitter
One is set between the reception channel of the land mobile communication system of co-sited deployment and isolates frequency band, this isolation frequency band includes portion
Divider gives the frequency band that land mobile communication system up channel uses；Further, under ground TV broadcast transmitter
Installation space between the antenna that the reception channel of the land mobile communication system for antenna and the co-sited deployment that row channel uses uses
Isolation.
The solution of the above problem 1 and problem 2, solves the band external leakage of down channel in first band to second band
On base station receive the interference of channel, still, when foregoing shared site and being configured with the second of up channel on a third band
Class site (site for being configured without the first transmission channel) is when adjacent on geographical location or adjacent, it may appear that following problem：
Problem 3：First transmission channel with external leakage power to configuration on a third band upper on the second class site
Row channel is produced compared with strong jamming.
The solution method of problem 3 is：It is wide can to include one or more terrestrial television in the bandwidth of first transmission channel
Channel is broadcast, i.e., in configuration broadcast channel on the first sub-band, same transmission channel (such as same power amplifier) can be used
To launch a broadcast channel or multiple broadcast channels, because a broadcast channel occupied bandwidth is 6~8M.One
A radio-frequency channel can accomplish the bandwidth of 20MHz, therefore, it is possible to use a power amplifier launches up to three broadcast channels.For
Further improvement to the isolation performance under problem 3, solution method is：A part is further taken out in television channel as guarantor
Protect frequency band；Alternatively, space is carried out using the directionality of antenna, such as front and rear ratio characteristic when disposing the antenna of the first transmission channel
Isolation, such as adjustment share the direction of the transmitting antenna for the first transmission channel disposed at site and/or at shared site
Installation site, makes the reception antenna that the up channel on the second class site on the 3rd frequency band uses be located at antenna used in launch channel
Main beam be directed toward outside region；
Fig. 1 is the flow chart for the channel arrangement method that a kind of suppression that the embodiment of the present invention provides is disturbed with external leakage, should
The band configurations that method is based on refer to Fig. 2, and this method includes：
Step S101, in the first geographic area covered using second band, included in first band first
One group is disposed on sub-band with middle power and/or the first transmission channel of low power transmissions；
The first band belongs to the planning frequency band of ground TV broadcast system, and the second band belongs to land mobile and leads to
The planning frequency band of letter system, first sub-band are close or adjacent with second band；
Step S102, determines one group of station in first geographic area from the site that land mobile base station uses
Shared site of the location as ground TV broadcast transmitting antenna and land mobile antenna for base station；
Step S103, at the shared site, the first transmission channel is configured on first sub-band, is moved on land
The first receiving channel is configured on the second sub-band in dynamic communication band, between first sub-band and second sub-band
In the presence of the 3rd sub-band for belonging to second band, the 3rd sub-band is adjacent with the second sub-band, and the 3rd sub-band exists for configuration
The frequency band that the second uplink receiving channel at unshared site uses；
Second uplink receiving channel is the receiving channel of the base station of site deployment different with the first uplink receiving channel, the
The 3rd frequency band shared by two uplink receiving channels is typically the frequency band used by another operator.On the first sub-band
The first transmission channel and the first uplink receiving channel colocation site dispose when, in the first transmission channel and the first uplink receiving channel
Between be that there are the 3rd sub-band as isolation frequency band, therefore, the first transmission channel co-sited will not be disposed second
Uplink receiving channel produces interference.Further, the 3rd sub-band is used by another operator again, does not waste frequency
Spectrum.
3rd sub-band is used at shared site suppress the first transmission channel band external leakage power to the first reception
The interference of passage.Second sub-band and the 3rd sub-band be the upstream band that is used to frequency division multiplexing FDD system of planning or
Person is the frequency band that planning is used to time division multiplexing TDD system；
In order to further suppress unshared site of the first transmission channel at the shared site to C1osely Spaced Basing
Out-of-band interference, the method further includes following steps：
When the distance between the shared site and described unshared site for deploying the second uplink receiving channel are less than
During default threshold value, the first transmitting antenna on shared site is with the first reception antenna on the i.e. shared site in first kind site
Using the antenna being deployed separately, also, according to the main beam direction of following principle the first transmitting antenna of configuration：Launch day first
Be not present in the main beam coverage of line with the relative distance of shared site where the first transmitting antenna be less than predetermined threshold value and
The unshared site of the second uplink receiving channel is configured with the 3rd sub-band
Further, second uplink receiving that deploys with shared site C1osely Spaced Basing where first transmitting antenna leads to
The television broadcasting signal of geographic area near the unshared site in road covers the first transmission channel by other shared sites
Implement.
Suppress the channel arrangement method with external leakage interference based on provided by the invention, in order to right in the first geographic area
The terrestrial television broadcast signal of the transmitter for being operated in the first sub-band transmitting of the distributed deployment on shared site is supervised
Survey, to know network coverage quality, it is wide to the terrestrial television of the first sub-band that the present invention furthermore provides the following two kinds
The method that signal is monitored is broadcast, is specially：
Method 1, in the geographic area of the first transmitting antenna covering, dispose at least one television broadcasting channel monitoring dress
Put, which receives the signal sent by the first transmission channel in first band, and power measurement, arrival time are carried out to signal
Measure or be demodulated the measurement bit error rate；
Method 2, in the geographic area of the first transmitting antenna covering, dispose at least one television broadcasting channel monitoring dress
Put, while which receives the signal sent by the first transmission channel in first band, obtained also by wire transmission passage
Take the broadcast code stream to be measured in first band, the signal received from wireless channel and wire message way contrasted, determine from
The transmission quality of the signal received in first band；
By above two monitoring method, the one or more in following monitoring content can be monitored：
1st, the signal strength of the first transmission channel transmitting；
2nd, the quality of reception of the first transmission channel transmitting signal, e.g., the bit error rate, Block Error Rate；
3rd, the synchronizing quality between the television broadcasting signal of the first transmission channel transmitting at different sharing site；
4th, in the first geographic area, the sending time of television broadcasting signal on the first band of frequencies and/or terminate what is sent
Time.
Measurement result is reported to network side by monitoring device by air interface or wireline transmission channel, is transmitted by network side
Regulator or operator to first band.
Further, in the first geographic area, station is shared at one group on the first sub-band except above-mentioned using configuration
Outside the first transmission channel at location is with identical frequency transmitting terrestrial television broadcast signal, one kind also as follows or
A variety of is applied in combination the first sub-band：
1st, the frequency spectrum resource of the first sub-band is coordinated between adjacent shared site, by the first sub-band at one group
It is used for the downlink transfer in different districts in a manner of the time-division between the cell of adjacent shared site covering；
2nd, the frequency spectrum resource of the first sub-band is coordinated between adjacent shared site, by the first sub-band at one group
The downlink transfer being used between the cell of adjacent site covering in a manner of soft-frequency reuse in different districts；
3rd, the downstream bands included in the first sub-band and second band carry out carrier aggregation transmission, i.e., using the first son frequency
The descending carrier that the carrier wave taken is included with second band is at the same time to same terminal transmission data；
4th, business datum is sent to terminal in a manner of point-to-point on the first sub-band, to network side on the second sub-band
Send the feedback data or control data of the business datum；
It should be further stated that：The first transmission channel uses the first transmitting antenna in the first sub-band at shared site
On launched, the first receiving channel is received using the first reception antenna on the second sub-band, the first transmitting antenna with
First reception antenna is that two separate antennas being deployed at shared site are either connect for one by the first transmission channel and first
Receive the antenna of channels share；
Further, as shown in Figure 2 b, between the first sub-band and the 3rd sub-band there are a guard band 204,
The guard band 204 is frequency band specified in technical specification.
Suppress the channel arrangement method with external leakage interference based on provided by the invention, the present invention also provides a kind of end side
Suppress the method for launch channel docking collection of letters road out-of-band interference, the uplink launch channel band external leakage power suitable for suppressing terminal
Interference to the broadcast TV reception channel in same terminal, this method include one kind of following method：
Method one：Terminal carries out television broadcasting signal and connects on one or more time slot in television broadcasting radio frames
Receive, and by the time slot position of terminal progress television broadcasting signal reception or time-gap number information reporting to network side；
Terminal sends signal in the time interval that it is received without television broadcasting signal to network side, alternatively, network
The gap information for the progress television broadcasting signal that lateral root is reported according to terminal, control terminal are received at it without television broadcasting signal
Time interval in network side send signal；
Method two：Terminal is received on one or more time slot in television broadcasting radio frames, and terminal exists
Carry out sending uplink signal to network side while television broadcasting signal signal receives；Feature is that the signal of transmission is with short
What data packet mode carried out, the time span that the short packages refer to continuously transmit data occupancy is less than television broadcasting channel
The decay time length that can be born.In general, television broadcasting eliminates influence of the decline to signal reception using interweaving encoding mode,
The decay time that can be resisted is related with interleave depth and translational speed, usually in several milliseconds of magnitudes.Terminal is in its reception letter
To the data block of network side transmission, either the transmission time of the transmission block transmission block or data block is wide less than TV during number
Broadcast anti-fading time of channel either the impulsive disturbance time usually transmission time of the transmission block or data block in a milli
Second or so.Terminal described in this method sends signal to network side, uses adjacent or close with television broadcasting channel
Channel.Specifically, terminal uses the second sub-band of the present invention either the 3rd sub-band.
Actual scene is divided into the frequency band of 698~806MHz with the Asia-Pacific region below, referring to Fig. 3, to suppressing
Ground TV broadcast channel with interference of the external leakage power to the up channel of the land mobile communication system in nearby frequency bands
Implementation illustrate.
It is the frequency spectrum that planning is used to ground TV broadcast system, in Asia-Pacific as shown in figure 3, in the left side of 698MHz
Area, the standard for the television broadcasting that different countries uses are not quite similar, and some countries use channel spacing to believe for the broadcast of 8MHz
Road, some then use broadcast channel interval of the channel spacing for 7MHz or 6MHz, this is resulted in actually makes in different countries
Frequency interval between television broadcasting channel and frequency point 698MHz is different.First sub-band 201 of the present invention, such as schemes
Shown in 3, the centre frequency of its actual broadcast channel included is also different from the frequency interval of 698MHz frequency points；In addition, the
One or more television broadcasting channel can be included in one sub-band 201, such as, can be wide comprising 6MHz channel spacings
Broadcast channel CH49,50.51, or channel CH50, CH51 comprising 7MHz channel spacings, or include 8MHz channel spacings
Channel CH47, CH48.Therefore, the first sub-band comprising these different channels intervals and different active channel quantity is in this hair
Adjacent with land mobile communication system or similar frequency band is referred to as in bright.
In the range of 698MHz~806MHz this band frequency, there are two kinds of frequency spectrum planning modes：1) plan and used to FDD；
2) plan and used to TDD system.Also, all it is by this bandwidth of 698MHz~803MHz in two kinds of different frequency spectrum planning
For 5MH frequency band as the protection band 204. between ground TV broadcast and mobile communication system
Corresponding to will plan the scene used to FDD system in the range of 703MHz~803MHz, the of the invention second son is frequently
It is a part in FDD upstream bands with 202, the second sub-band is formed with the sub-band 201D in the range of 703MHz~803MHz
Paired spectrum disposes FDD cells.Also, the frequency band of isolating between the second sub-band 202 and the first sub-band 201 includes the 3rd
Sub-band 203 and guard band 204. are shared on site in ground TV broadcast system and land mobile communication system, first
The first transmission channel and the first transmitting antenna are configured on frequency band 201, the first receiving channel is configured over a second frequency band and first connects
Receive antenna.Existing the first hair of 204 and the 3rd frequency band of guard band isolation between the first transmission channel and the first receiving channel
Penetrate passage to disturb the band external leakage of the first receiving channel, in order to further suppress outside the band of the launch channel on the first sub-band
Interference, the first transmitting antenna and the first reception antenna case are deployed separately, and are isolated by space or/and the directionality of antenna is into one
Step suppresses the first sub-band to the interference between the second sub-band.
Corresponding to will plan the scene used to TDD system in the range of 703MHz~803MHz, the of the invention second son is frequently
With 202 and the 3rd sub-band 203 be all the frequency band that is used in TDD frequency bands in ascending time slot.Also, in the second sub-band
Frequency band of isolating between 202 and the first sub-band 201 includes the 3rd sub-band 203 and guard band 204. in ground TV broadcast
System is shared on site with land mobile communication system, and the first transmission channel and the first transmitting day are configured in first band 201
Line, configures the first receiving channel and the first reception antenna over a second frequency band.The first transmission channel and the first receiving channel it
Between existing 204 and the 3rd frequency band of guard band the first transmission channel presses down the interference of the band external leakage of the first receiving channel
System, in order to further suppress the out-of-band interference of the launch channel on the first sub-band, day is received by the first transmitting antenna and first
Line case is deployed separately, by space isolation or/and antenna directionality further suppress the first sub-band to the second sub-band it
Between interference.
In the commercial deployment of real system, of the present invention to share site and shared land mobile communication network
In the case of transmission network, television broadcast operator can be concerned about the television broadcasting signal by sharing base and the transmission of shared transmission network
The offer time of covering quality and actual broadcast business, television broadcast operator want to be deployed on shared site distribution
The coverage condition of middle low-powered transmitter monitored in real time.For this reason, the present invention provide it is wide to the TV on the first sub-band
Broadcast the technological approaches that channel is detected.Specifically, the broadcast channel exactly on the first sub-band needs the geographic region covered
In domain, several television broadcasting channel detection devices are disposed, which receives the television broadcasting signal on the first sub-band and will
Monitoring side's information interested is sent to detection side.The combination of one or more in the following way is judged：1) lead to
Wire transmission broadcast code stream is crossed, is contrasted with the code stream received；2) judged by the bit error rate；3) sentenced by signal strength
It is disconnected)；The method that television broadcasting channel detection device sends the broadcast message on the first sub-band for monitoring can be it is following it
It is a kind of：1) sent by the air interface of land mobile communication system；2) sent by cable transmission network, cable transmission network can be with
It is the transmission network of cable tv broadcast system or the transmission network of cell mobile communication systems.
One kind of shown television broadcasting channel detection device, which is achieved in that, to be deployed at television receiver set-top box, or
With television receiver or television receiver set-top box integrated design.
When the second receiver on the 3rd sub-band 203 and the second reception antenna are deployed in unshared site and described non-
Shared site and the shared site are when neighbouring on geographical location, in order to suppress the band of the first transmission channel on shared site
Interference of the external leakage power to the second reception antenna at unshared site, the main beam direction of the first transmitting body antenna is avoided
Unshared site direction.It is described here neighbouring to refer to the distance between unshared site and shared site in specific range section
Within.The value range in specific range section is between 50 meters~500 meters；Typical value scope is between 50~200 meters.
Further, at least in part-time, the business datum of mobile communication system is sent using the first sub-band, is moved
Dynamic communication service data is following one kind：1) MBMS data；2) downlink data downloading service is sent；Part-time refers to
Within intraday some periods, or in some periods in one month, on the first band of frequencies using the first transmission channel
Mobile communication business data are sent with the first transmitting antenna.
Specifically, when sending mobile service data, carried out between one group of first transmission channel on different sites
Inter-Cell Interference Coordination；
The business datum of mobile communication system is being sent, using the air interface technologies specification of mobile communication system,
Such as the wireless technology specifications formulated using 3GPP normal structures；
Mobile communication business number is done using the first transmission channel on the first sub-band for belonging to ground TV broadcast frequency band
Include one kind of the following two kinds method according to the method for transmission：
(1) on the first sub-band using first carrier and television broadcasting wireless technology specifications electricity is sent to television receiver
While depending on broadcast singal, signal is sent to mobile communication receiver using the second carrier wave and mobile communication wireless technical specification；
(2) on the first sub-band in first time section using television broadcasting wireless technology specifications to television receiver
Television broadcasting signal is sent, is sent in the second time interval using mobile communication wireless technical specification to mobile communication receiver
Signal, first time section and the second time interval value range between several minutes or a few hours.
Further, the first transmission channel and land mobile communication system, which share the mode of site, includes the following two kinds：
1st, existing all movements that the first reception antenna is configured with the second sub-band are led in a geographic area
Letter all configures at least one first transmission channel, not shared antenna or shared antenna at site；
2nd, existing one group of movement that the first reception antenna is configured with the second sub-band is led in a geographic area
Believe in site, at least choose shared site of the site as the first transmission channel and the first receiving channel of mobile communication,
At least one first transmission channel is disposed on the shared site；First transmission channel and the first receiving channel shared antenna be not common
Antenna；
In the first geographic area covered using the second sub-band, low power transmissions in only being disposed on the first sub-band
Machine, does not dispose high-power transmitter.
High-power transmitter is the transmitter that power is more than or equal to 1000 watts；Middle low-powered transmitter is that transmission power is less than
1000 watts of transmitter.The exemplary power value of middle low-powered transmitter is between 10~100W；
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (14)
1. a kind of suppress the channel arrangement method with external leakage interference, it is characterised in that this method includes：
In the first geographic area that second band is covered, disposed on the first sub-band that first band includes one group with
First transmission channel of middle power and/or low power transmissions, first sub-band is close or adjacent with second band, described
First band belongs to the planning frequency band of ground TV broadcast system, and the second band belongs to the planning of land mobile communication system
Frequency band；
Determine one group of site as ground electricity from the site that land mobile base station uses in first geographic area
Depending on the shared site of broadcast transmitting antenna and land mobile antenna for base station；
At the shared site, the first transmission channel is configured on first sub-band, in the second band
The first receiving channel is configured on two sub-bands, exists between first sub-band and second sub-band and belongs to second band
The 3rd sub-band.
2. according to the method described in claim 1, it is characterized in that,
3rd sub-band is adjacent with second sub-band, and the 3rd sub-band is second at unshared site
The frequency band that uplink receiving channel uses, second uplink receiving channel receive on a third band for land mobile base station
The passage for the signal that terminal is sent.
3. according to the method described in claim 1, it is characterized in that, second sub-band and the 3rd sub-band are planning
The frequency band used to time division multiplexing TDD system is either planned to the upstream band that frequency division multiplexing FDD system uses.
4. according to the method described in claim 2, it is characterized in that,
At the shared site, first transmission channel is sent out using the first transmitting antenna on first sub-band
Penetrate, first receiving channel is received using the first reception antenna on second sub-band；
Preset when the distance between the shared site and the unshared site for deploying the second uplink receiving channel are less than
Threshold value when, the first transmitting antenna on shared site and the first reception antenna on shared site are using the day being deployed separately
Line, and be not present in the main beam coverage of the first transmitting antenna with sharing the opposite of site where first transmitting antenna
Distance is less than predetermined threshold value and the unshared site of the second uplink receiving channel is configured with the 3rd sub-band.
5. according to the method described in claim 2, it is characterized in that,
In first geographic area, the first transmitting for configuring and being shared at one group at site is used on first sub-band
Passage launches terrestrial television broadcast signal with identical frequency.
6. the according to the method described in claim 5, it is characterized in that, one or more of the method also as follows
First sub-band is applied in combination：
The frequency spectrum resource of the first sub-band is coordinated between adjacent shared site, the first sub-band is adjacent common at one group
Enjoy site covering cell between in a manner of the time-division be used for different districts in downlink transfer；
The frequency spectrum resource of the first sub-band is coordinated between adjacent shared site, by the first sub-band in one group of neighbor stations
For the downlink transfer in different districts in a manner of soft-frequency reuse between the cell of location covering；
Carrier aggregation transmission is carried out in the downstream bands that the first sub-band and second band include, i.e., using on the first sub-band
The descending carrier that carrier wave is included with second band is at the same time to same terminal transmission data；
Business datum is sent to terminal in a manner of point-to-point on the first sub-band, institute is sent to network side on the second sub-band
State the feedback data or control data of business datum.
7. according to the method described in claim 1, it is characterized in that, first transmission channel of the configuration on the first sub-band
One kind transmitting signal as follows：
(1) it is wide to television receiver transmission TV using first carrier and television broadcasting wireless technology specifications on the first sub-band
While broadcasting signal, signal is sent to mobile communication receiver using the second carrier wave and mobile communication wireless technical specification；
(2) sent on the first sub-band in first time section using television broadcasting wireless technology specifications to television receiver
Television broadcasting signal, is sent to mobile communication receiver using mobile communication wireless technical specification in the second time interval and believed
Number, first time section and the second time interval value range between several minutes or a few hours.
8. according to the method described in claim 1, it is characterized in that, the method is further included as follows to the ground of the first sub-band
The step of television broadcasting signal is monitored：
In the geographic area of the first transmitting antenna covering, at least one television broadcasting channel monitoring device, the monitoring are disposed
Device receives the signal sent by the first transmission channel in first band.
9. according to the method described in claim 1, it is characterized in that, the method is further included as follows to the ground of the first sub-band
The step of television broadcasting signal is monitored：
In the geographic area of the first transmitting antenna covering, at least one television broadcasting channel monitoring device, the monitoring are disposed
While device receives the signal sent by the first transmission channel in first band, first is obtained also by wire transmission passage
Broadcast code stream to be measured on frequency band, the signal received from wireless channel and wire message way is contrasted, and is determined from the first frequency
Take the transmission quality of the signal received；Alternatively,
In the geographic area of the first transmitting antenna covering, at least one television broadcasting channel monitoring device, the monitoring are disposed
Device receives the television broadcasting signal sent by the first transmission channel or measuring signal in first band, wide to the TV
The one or more for broadcasting the following parameter of signal or measuring signal measure：
1) signal reaches the power at monitoring device；
2) signal of the first transmission channel transmitting at different sites reaches the arrival time at monitoring device；Also by wired biography
Defeated passage obtains the broadcast code stream to be measured in first band；
3) bit error rate when at detection device to radio TV signals receiving；The above-mentioned parameter that measurement obtains is reported to net by detection device
Network side.
10. a kind of suppress the channel configuration system with external leakage interference, it is characterised in that the system, which includes, to be used to perform such as right
It is required that the device of the channel arrangement method for suppressing external leakage interference described in 1.
11. system according to claim 10, it is characterised in that second sub-band and the 3rd sub-band are rule
Give the upstream band that frequency division multiplexing FDD system uses and either plan the frequency band used to time division multiplexing TDD system.
12. system according to claim 10, it is characterised in that
At the shared site, first transmission channel is sent out using the first transmitting antenna on first sub-band
Penetrate, first receiving channel is received using the first reception antenna on second sub-band；
Preset when the distance between the shared site and the unshared site for deploying the second uplink receiving channel are less than
Threshold value when, the first transmitting antenna on shared site and the first reception antenna on shared site are using the day being deployed separately
Line, and be not present in the main beam coverage of the first transmitting antenna with sharing the opposite of site where first transmitting antenna
Distance is less than predetermined threshold value and the unshared site of the second uplink receiving channel is configured with the 3rd sub-band；On described second
Row receiving channel for the land mobile base station signal that receiving terminal is sent on a third band passage.
13. system according to claim 10, it is characterised in that
One kind transmitting signal of first transmission channel of the configuration on the first sub-band as follows：
(1) it is wide to television receiver transmission TV using first carrier and television broadcasting wireless technology specifications on the first sub-band
While broadcasting signal, signal is sent to mobile communication receiver using the second carrier wave and mobile communication wireless technical specification；
(2) sent on the first sub-band in first time section using television broadcasting wireless technology specifications to television receiver
Television broadcasting signal, is sent to mobile communication receiver using mobile communication wireless technical specification in the second time interval and believed
Number, first time section and the second time interval value range between several minutes or a few hours.
A kind of 14. method for suppressing launch channel docking collection of letters road out-of-band interference, it is characterised in that the channel is will based on right
The channel for asking the channel arrangement method described in 1 to be configured, this method are used for the uplink launch channel band external leakage work(for suppressing terminal
Interference of the rate to the broadcast TV reception channel in same terminal, this method further include：
Terminal carries out television broadcasting signal reception on one or more time slot in television broadcasting radio frames, and by described in
The time slot position or time-gap number information reporting of progress television broadcasting signal reception are to network side；Terminal is wide without TV
Broadcast wide to network side transmission signal, or the carry out TV that network side is reported according to terminal in the time interval of signal reception
The gap information of signal reception is broadcast, control terminal is sent in the time interval received without television broadcasting signal to network side
Signal；Or
Terminal carries out television broadcasting signal reception on one or more time slot in television broadcasting radio frames, and terminal into
While row television broadcasting signal receives uplink signal is sent to network side；The uplink signal is sent in a manner of short packages,
The short packages refer to that the time span for continuously transmitting data occupancy is less than the decay time that television broadcasting channel can be born
Length.
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| CN201110344940.9A CN103096326B (en) | 2011-11-04 | 2011-11-04 | It is a kind of to suppress channel arrangement method and system with external leakage interference |
| JP2014539213A JP5855758B2 (en) | 2011-11-04 | 2012-06-13 | Method and system for suppressing out-of-band leakage interference |
| PCT/CN2012/076859 WO2013063939A1 (en) | 2011-11-04 | 2012-06-13 | Method and system for suppressing out-of-band leakage interference |
Applications Claiming Priority (1)
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| CN201110344940.9A CN103096326B (en) | 2011-11-04 | 2011-11-04 | It is a kind of to suppress channel arrangement method and system with external leakage interference |
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| WO2018058855A1 (en) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | Data transmission method, device and system |
| CN111417150B (en) * | 2020-04-03 | 2022-09-16 | 山西科泰航天防务技术股份有限公司 | Method and device for real-time dynamic configuration of telemetering transmitter |
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| JP2015501607A (en) | 2015-01-15 |
| JP5855758B2 (en) | 2016-02-09 |
| CN103096326A (en) | 2013-05-08 |
| WO2013063939A1 (en) | 2013-05-10 |
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