CN105450372B - Avoid the LTE of Pilot Interference with the method and apparatus of frequency linear networking - Google Patents
Avoid the LTE of Pilot Interference with the method and apparatus of frequency linear networking Download PDFInfo
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Abstract
The embodiment of the present invention provide it is a kind of avoid the LTE of Pilot Interference with the method and apparatus of frequency linear networking, this method includes：Networking is carried out respectively to first community and second community using 4 antenna port operating modes or 2 antenna port operating modes, the first community and the second community are the neighboring community on linear distribution region；The PCI of the PCI and the second community of the first community is respectively set；Wherein, the PCI of the first community is different from the PCI of the second community, and the result of PCI pairs of 6 modulo operations of the first community is identical as the result of PCI pairs of 6 modulo operations of the second community, first community keeps mutual pilot signal misaligned with second community, effectively avoid interfering with the data-signal of neighboring community, to effectively avoid interfering with each other for the pilot signal of neighboring community.
Description
Technical field
The present embodiments relate to signal processing technology more particularly to a kind of long term evolution (English avoiding Pilot Interference：
Long Term Evolution, referred to as：LTE) with the method and apparatus of frequency linear networking.
Background technology
LTE technologies generally use identical networking mode, the phase of identical networking since bandwidth is very wide when carrying out networking
Syntople between adjacent cell is fairly simple.
Since no matter the downlink reference signal of LTE is either with or without business, each cell can continuous pilot signal transmitted,
Such as：Under the covering scenes such as railway, highway, linear networking is used, it is next if it is first community to be currently located cell
Adjacent cell is second community, while the user terminal of first community obtains business datum, in second community not
Any user terminal has a business, the second community still continuous user terminal pilot signal transmitted into coverage area.
However, the signal of even each cell edge is fine, adjacent cell still sends in the case of no business and leads
Frequency signal then has the down-bound pilot frequency signal of this cell of data service or data-signal that can also be disturbed, leads to downstream rate
Slowly.
Invention content
It is provided in an embodiment of the present invention to avoid the LTE of Pilot Interference with the method and apparatus of frequency linear networking, effectively avoid
The interference of down-bound pilot frequency signal or data-signal between neighboring community, improves downstream rate.
First aspect of the embodiment of the present invention provide it is a kind of avoid the LTE of Pilot Interference with the method for frequency linear networking, including：
Using 4 antenna port operating modes or 2 antenna port operating modes to first community and second community respectively into
Row networking, the first community and the second community are the neighboring community on linear distribution region；
The PCI of the PCI and the second community of the first community is respectively set；
Wherein, the PCI of the first community is different from the PCI of the second community, and PCI pairs 6 of the first community
The result of modulo operation is identical as the result of PCI pairs of 6 modulo operations of the second community, to avoid the first community and institute
State the Pilot Interference between second community.
Second aspect of the present invention provide it is a kind of avoid the LTE of Pilot Interference with the device of frequency linear networking, including：
Processing module, for using 4 antenna port operating modes or 2 antenna port operating modes to first community and the
Two cells carry out networking respectively, and the first community and the second community are the neighboring community on linear distribution region；
Setup module, the PCI of PCI and the second community for the first community to be respectively set；
Wherein, the PCI of the first community is different from the PCI of the second community, and PCI pairs 6 of the first community
The result of modulo operation is identical as the result of PCI pairs of 6 modulo operations of the second community to avoid the first community and institute
State the Pilot Interference between second community.
It is provided in an embodiment of the present invention to avoid the LTE of Pilot Interference with the method and apparatus of frequency linear networking, by line
Property distributed areas on neighboring community use 4 antenna port operating modes or 2 antenna port operating modes, and by adjacent the
The PCI of one cell and second community is set as different value, and the result and second of PCI pairs 6 progress modulo operation of first community
The result of PCI pairs 6 progress modulo operation of cell is equal, and first community uses different antenna port coverings two from second community
Person's overlapping coverage area keeps mutual pilot signal misaligned, will not interfere with the data-signal of neighboring community, to effective
Interfering with each other for the pilot signal of neighboring community is avoided, downlink throughput is improved.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart that the present invention avoids the LTE of Pilot Interference with the embodiment of the method one of frequency linear networking；
Fig. 2 is the flow chart that the present invention avoids the LTE of Pilot Interference with the embodiment of the method two of frequency linear networking；
Fig. 3 is the networking schematic diagram that the present invention avoids the LTE of Pilot Interference with the embodiment of the method two of frequency linear networking；
Fig. 4 is that the present invention avoids the LTE of Pilot Interference with the public of each port of the embodiment of the method two of frequency linear networking
Reference signal schematic diagram；
Fig. 5 is the flow chart that the present invention avoids the LTE of Pilot Interference with the embodiment of the method three of frequency linear networking；
Fig. 6 is the networking schematic diagram that the present invention avoids the LTE of Pilot Interference with the embodiment of the method three of frequency linear networking；
Fig. 7 is that the present invention avoids the LTE of Pilot Interference with the public of each port of the embodiment of the method three of frequency linear networking
Reference signal schematic diagram；
Fig. 8 is the structural schematic diagram that the present invention avoids the LTE of Pilot Interference with the device embodiment one of frequency linear networking.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart that the present invention avoids the LTE of Pilot Interference with the embodiment of the method one of frequency linear networking, the present invention
The method that embodiment provides is applied to the covering scenes such as railway, highway, and the syntople of cell is fairly simple, this is avoided leading
Frequency interference LTE with frequency linear networking method the specific steps are：
S101：Using 4 antenna port operating modes or 2 antenna port operating modes to first community and second community point
Networking is not carried out, and the first community and the second community are the neighboring community on linear distribution region.
In the present embodiment, 4 antenna ports (English may be used：4 Transmit, 4 Receive, referred to as：4T4R) work
Operation mode either 2 antenna ports (English：2 Transmit, 2 Receive, referred to as：2T2R), to all linear networkings
Cell carries out networking, wherein the first community and second community only represent two adjacent cells, are not that only there are two small
Area, the method for the present embodiment can be applied to the linear networking mode of multiple cells more than or equal to one, specific cell number
It is selected according to actual conditions.
S102：Physical Cell Identifier (the English of the first community is respectively set：Physical Cell ID, referred to as：
) and the PCI of the second community PCI；Wherein, the PCI of the first community is different from the PCI of the second community, and described
The result of PCI pairs of 6 modulo operations of first community is identical as the result of PCI pairs of 6 modulo operations of the second community, to avoid
Pilot Interference between the first community and the second community.
In the present embodiment, in order to evade the interference of the pilot signal between neighboring community, the PCI to each cell is needed
Special setting is carried out, the pilot frequency locations to ensure the identical port in each two neighboring community are identical.With first community and second community
For, specific PCI set-up modes are：Since the remainder of PCI pairs of 6 modulo operations of each cell determines that cell pilots exist
The sub-carrier number of position overall offset on frequency domain, PCI pairs 6 that first community is arranged accordingly carry out modulo operation and second community
PCI pairs 6 progress modulo operation result it is equal, be equal to a fixed value (i.e. PCI MOD 6=second community for first community
PCIMOD 6=fixed values).
It is provided in this embodiment to avoid the LTE of Pilot Interference with the method for frequency linear networking, by small to adjacent first
Area and second community carry out networking using 4 antenna port operating modes or 2 antenna port operating modes, and by first community
PCI is set as different from the PCI of second community, and the PCI of the result and second community of PCI pairs of 6 modulo operations of first community
It is identical to the result of 6 modulo operations, so that the position of the public reference signal of the respective antenna port of each cell is identical,
Cooperation neighboring community covers overlapping coverage area between the two using different ports so that the pilot tone of each port of overlapping coverage area
Signal is neither overlapped, and will not interfere with data-signal, to effectively avoid the Pilot Interference between neighboring community.
Fig. 2 is the flow chart that the present invention avoids the LTE of Pilot Interference with the embodiment of the method two of frequency linear networking, such as Fig. 2
It is shown, networking, institute are being carried out respectively to the first community and the second community using 4 antenna port operating modes
It includes port 0, port 1, port 2 and port 3 to state first community, and the second community includes port 0, port 1,2 and of port
Port 3, then the method for the present embodiment the specific steps are：
S201：Networking is carried out respectively to first community and second community using 4 antenna port operating modes, described first is small
Area and the second community are the neighboring community on linear distribution region.
S202：The port 0 of the first community and antenna where port 3 are set towards one on linear distribution region
Direction is covered, and the antenna where the port 1 of the first community and port 2 is towards another on linear distribution region
Direction is covered；Be arranged the port 0 of the second community and antenna where port 3 towards on linear distribution region with it is described
The port 0 of first community direction identical with the antenna where port 3 is covered, and the port 1 of the second community and end
Antenna where mouthfuls 2 is towards side identical with the antenna where the port 1 of the first community and port 2 on linear distribution region
To being covered.
In the present embodiment, each cell includes four ports：Port 0, port 1, port 2 and port 3, in a group network process
In so that the port 0 of first community and antenna where port 3 towards a direction in networking linear distribution direction, first community
Port 1 and port 2 where antenna towards the direction opposite with port 0 and 3 place antenna of port, adjacent cell also one
As antenna where sample, the port 0 of second community and the antenna direction of port 3 and the port of first community 0 and port 3,
The port 1 of second community is identical with the antenna direction where port 2 with the port 1 of first community with the antenna where port 2, i.e.,
Two opposite port numbers of two neighboring cell differ, and Fig. 3 is that the present invention avoids the LTE of Pilot Interference with frequency linear networking
The networking schematic diagram of embodiment of the method two, as shown in figure 3, the port 1 and port 2 of first community and 0 He of the port of second community
Port 3 is opposite.
S203：The PCI of the PCI and the second community of the first community is respectively set；Wherein, the first community
PCI is different from the PCI of the second community, and the result of PCI pairs of 6 modulo operations of the first community and the second community
PCI pairs of 6 modulo operations result it is identical, to avoid the Pilot Interference between the first community and the second community.
Further, the downlink transfer pattern of the first community and the second community is respectively set to transmitting diversity
Pattern 2 (TM2) or diversity mode 4 (TM4).
In the present embodiment, particularly, for the networking plan using 4T4R operating modes：It is point-to-point to use TM4 or TM2
Pattern, it is not recommended that acute variation (will produce, but due to end using TM3 patterns on the equivalent channel frequency domain that long time delay diversity generates
The very sparse channel estimation being unfavorable at this time of pilot signal on mouth 3 and port 2), neighboring community will use pilot frequency locations identical
PCI configuration.
Fig. 4 is that the present invention avoids the LTE of Pilot Interference with the public of each port of the embodiment of the method two of frequency linear networking
Reference signal schematic diagram, expression be four antenna ports as defined in LTE standard the reference signal location drawing, abscissa is time domain
Symbol sebolic addressing, ordinate are the subcarrier sequence of frequency domain, as shown in figure 4, R0, R1, R2 and R3 square are reference signal position in figure
It sets, black square is the position that do not signal.Since neighboring community is different in the port numbers of overlapping coverage area, pilot tone each other
It is not overlapped, data-signal will not be interfered with, so as to avoid the Pilot Interference of adjacent area.
It is provided in this embodiment to avoid the LTE of Pilot Interference with the method for frequency linear networking, by small to adjacent first
Area and second community carry out networking using 4T4R operating modes, by the port of the port 0 and port 3 and second community of first community
0 and port 3 where the direction in antenna towards identical networking linear distribution direction be arranged, and by the port of first community
1 and port 2 and second community port 1 and antenna where port 2 towards identical networking linear distribution direction another
Direction is arranged, and the PCI of first community is set as different from the PCI of second community, and the PCI pairs of 6 modulus fortune of first community
The result of calculation is identical as the result of PCI pairs of 6 modulo operations of second community, so that the respective antenna port of each cell
The position of public reference signal is identical, small with second in first community due to the special setting of neighboring community's antenna port direction
The covering crossover region in area, the port 0 of second community and the pilot signal of port 3 fall the port of first community 1 and port 2 not
The retention position of signalling, the port 1 of same first community and the pilot signal of port 2 are fallen in the port of second community 3 and end
The retention position of mouth 0 not signaled, to effectively avoid the pilot signal between neighboring community from interfering with each other and pilot tone letter
Number interference of the interference to data-signal.
Fig. 5 is the flow chart that the present invention avoids the LTE of Pilot Interference with the embodiment of the method three of frequency linear networking, if adopted
With the networking plan of 4 antenna port operating mode recited above, once a path deterioration, will lead to the business for sending diversity
It can not normally receive, influence reliability.The networking of 2 antenna port operating modes is used for the high occasion suggestion of reliability requirement
Scheme carries out group respectively using 2 antenna port operating modes to the first community and the second community in the present embodiment
Net, the first community include port 0 and port 1, and the second community includes port 0 and port 1, then this is avoided pilot tone dry
The LTE disturbed with frequency linear networking method the specific steps are：
S301：Networking is carried out respectively to first community and second community using 2 antenna port operating modes, described first is small
Area and the second community are the neighboring community on linear distribution region.
S302：Be arranged antenna where the port 0 of the first community towards a direction on linear distribution region into
Row covering, and the antenna where the port 1 of the first community is covered towards another direction on linear distribution region；
Be arranged the antenna where the port 0 of the second community towards on linear distribution region with where the port 0 of the first community
The identical direction of antenna covered, and the antenna where the port 1 of the second community towards on linear distribution region with
The identical direction of antenna where the port 1 of the first community is covered.
In the present embodiment, each cell includes two ports：Port 0 and port 1, so that first is small during networking
Antenna where the port 0 in area is towards a direction in networking linear distribution direction, and the port signal of the port 0 is by radio frequency
Extension unit (English：Radio Remote Unit, referred to as：RRU two channels) are sent, the signal that the two ports are sent
It is identical, the antenna direction direction opposite with 0 place antenna of port where the port 1 of first community, and where port 1
Port signal is also to be sent by two channel RRU, and adjacent cell is same, the antenna where the port 0 of second community
Direction is as the antenna where the port of first community 0, the port of antenna and first community where the port 1 of second community
Antenna direction where 1 is identical, i.e., two opposite port numbers of two neighboring cell differ, and each port of each cell
Signal all by two channels of RRU send.Fig. 6 is that the present invention avoids the LTE of Pilot Interference real with the method for frequency linear networking
The networking schematic diagram of example three is applied, as shown in fig. 6, the port 0 of first community and the port 1 of second community are opposite.
S303：The PCI of the PCI and the second community of the first community is respectively set；Wherein, the first community
PCI is different from the PCI of the second community, and the result of PCI pairs of 6 modulo operations of the first community and the second community
PCI pairs of 6 modulo operations result it is identical, to avoid the Pilot Interference between the first community and the second community.
Further, the port 0 of the first community and the port 1 of the first community include the first radio-frequency channel and
Second radio-frequency channel, then by the delay of the downlink signal of first radio-frequency channel of each port and second radio-frequency channel
Range is set as 0.3 microsecond to 0.6 microsecond.
In the present embodiment, led to by two of RRU to increase covering, the port 0 of first community and the signal of port 1
Road is sent on (the first radio-frequency channel and the second radio-frequency channel), since the signal that the two channels are sent is identical, in order to keep away
The signal for exempting from the two channels dies down by spatial and after being superimposed, can be by the signal delay in one of channel a bit
(such as：0.5 microsecond) it sends.
The port 0 of the second community and the port 1 of the second community include third radio-frequency channel and the 4th radio frequency
Then the reference time delay of the downlink signal of the third radio-frequency channel of each port and the 4th radio-frequency channel is arranged for channel
For 0.3 microsecond to 0.6 microsecond.
In the present embodiment, led to by two of RRU to increase covering, the port 0 of second community and the signal of port 1
Road is sent on (third radio-frequency channel and the 4th radio-frequency channel), since the signal that the two channels are sent is identical, in order to keep away
Exempt from the signal in the two channels by dying down after spatial and superposition, when can be by one section of the signal delay in one of channel
Between (such as：0.5 microsecond) it sends.
I.e. in the present embodiment, the port 0 of the first community and the port 1 of the first community can use 1
Radio-frequency channel, or increase coverage area and reliability include that the first radio-frequency channel and the second radio-frequency channel 2 are penetrated
Frequency channel, the two radio-frequency channels either using at a distance of more than 10 times of wavelength antenna or not same polarization side can also be used
To antenna.
The port 0 of the second community and the port 1 of the second community can use 1 radio-frequency channel, can also
Include third radio-frequency channel and the radio-frequency channel of the 4th radio-frequency channel 2 to increase coverage area and reliability, the two are penetrated
Frequency channel is either using at a distance of the antenna for being more than 10 times of wavelength or can also using the antennas of different polarization directions.
Likewise, similar with the networking plan of 4 antenna port operating modes, in order to evade neighbor pilot interference, need pair
The PCI of adjacent area carries out special setting.
Furthermore it is possible to which each port of every cell is allowed to include two radio-frequency channels, the antenna of two radio-frequency channels is more than apart
10 times of wavelength, either using dual polarized antenna or the downlink signal of one of radio-frequency channel and another radio-frequency channel
The constant time lag of downlink signal, the time delay suggestion are more than 0.3us, are less than 0.6us.
Fig. 7 is that the present invention avoids the LTE of Pilot Interference with the public of each port of the embodiment of the method three of frequency linear networking
Reference signal schematic diagram indicates that dual-port reference signal position as defined in LTE standard, abscissa are the symbol sebolic addressing of time domain, indulges
Coordinate is the subcarrier sequence of frequency domain.The direction of the channel covering in the channel and port 1 of port 0 is on the contrary, 0 He of neighboring community port
1 channel coverage direction of port is identical as this cell, ensures that the port numbers that the adjacent channel area of coverage uses are different, R0 in figure,
R1 is reference signal position, and black square is not signal position, due to the special setting of neighboring community's antenna port direction,
The pilot signal of the covering crossover region of first community and second community, the port 0 of second community is fallen in the port of first community 1
The retention position not signaled, to effectively avoid the pilot signal between neighboring community from interfering with each other and pilot signal interference
Interference to data-signal.
It is provided in this embodiment to avoid the LTE of Pilot Interference with the method for frequency linear networking, by small to adjacent first
Area and second community carry out networking using 2 antenna port operating modes, by the port 0 of the port 0 of first community and second community
One direction in the antenna at place towards identical networking linear distribution direction is arranged, and by the port of first community 1 and second
Another direction in antenna towards identical networking linear distribution direction where the port 1 of cell is arranged, and by first community
PCI be set as different from the PCI of second community, and the result of PCI pairs of 6 modulo operations of first community and second community
The result of PCI pairs of 6 modulo operations is identical, so that the position of the public reference signal of each antenna port of each cell is not
Together, pilot signal is not overlapped, to effectively avoid the Pilot Interference between neighboring community.
Fig. 8 is the structural schematic diagram that the present invention avoids the LTE of Pilot Interference with the device embodiment one of frequency linear networking, such as
Shown in Fig. 8, this is avoided the LTE of Pilot Interference from including with the device 10 of frequency linear networking：Processing module 11 and setup module 12；Place
Module 11 is managed, for dividing first community and second community using 4 antenna port operating modes or 2 antenna port operating modes
Networking is not carried out, and the first community and the second community are the neighboring community on linear distribution region；Setup module 12 is used
In the PCI of PCI and the second community that the first community is respectively set；Wherein, the PCI of the first community and described the
The PCI of two cells is different, and PCI pairs 6 of the result of PCI pairs of 6 modulo operations of the first community and the second community takes
The identical Pilot Interference to avoid between the first community and the second community of result of modular arithmetic.
It is provided in this embodiment to avoid the LTE of Pilot Interference with the device of frequency linear networking, for executing side shown in FIG. 1
The technical solution of method, implementing principle and technical effect are similar, adopted to adjacent first community and second community by processing module
Networking is carried out with 4T4R operating modes or 2T2R operating modes, setup module sets the PCI of the PCI of first community and second community
It is set to difference, and the result phase of the result of PCI pairs of 6 modulo operations of first community and PCI pairs of 6 modulo operations of second community
Together, so that the position of the public reference signal of each antenna port of each cell is different, pilot signal is not overlapped, to
Effectively avoid the Pilot Interference between neighboring community.
The LTE of Pilot Interference is avoided in the device embodiment two of frequency linear networking, in above-described embodiment in the present invention
On the basis of, if the processing module 11 distinguishes the first community and the second community using 4 antenna port operating modes
Networking is carried out, the first community includes port 0, port 1, port 2 and port 3, and the second community includes port 0, end
Mouthful 1, port 2 and port 3, then the setup module 12 be additionally operable to：
The port 0 of the first community and antenna where port 3 are set towards a direction on linear distribution region
It is covered, and the antenna where the port 1 of the first community and port 2 is towards another direction on linear distribution region
It is covered；
Be arranged the port 0 of the second community and antenna where port 3 towards on linear distribution region with described first
The port 0 of cell direction identical with the antenna where port 3 is covered, and 2 institute of the port 1 of the second community and port
Antenna towards direction identical with the antenna where the port 1 of the first community and port 2 on linear distribution region into
Row covering.
Optionally, if the processing module 11 uses 2 antenna port operating modes to the first community and described second
Cell carries out networking respectively, and the first community includes port 0 and port 1, and the second community includes port 0 and port 1,
Then the setup module 12 is additionally operable to：
Antenna where the port 0 of the first community is arranged is covered towards a direction on linear distribution region
Lid, and the antenna where the port 1 of the first community is covered towards another direction on linear distribution region；
Antenna where the port 0 of the second community is set towards the end with the first community on linear distribution region
The identical direction of antenna where mouthful 0 is covered, and the antenna where the port 1 of the second community is towards linear distribution area
Direction identical with the antenna where the port of the first community 1 is covered on domain.
Optionally, the setup module 12 is additionally operable to the downlink transfer pattern by the first community and the second community
It is respectively set to TM2 diversity modes or TM4 diversity modes.
Optionally, the port 0 of the first community and the port 1 of the first community include the first radio-frequency channel and the
Two radio-frequency channels, then the setup module 12 be additionally operable to lead to first radio-frequency channel of each port and second radio frequency
The reference time delay of the downlink signal in road is set as 0.3 microsecond to 0.6 microsecond；
The port 0 of the second community and the port 1 of the second community include third radio-frequency channel and the 4th radio frequency
Channel, then the setup module 12 be additionally operable under the third radio-frequency channel and the 4th radio-frequency channel by each port
The reference time delay of row signal is set as 0.3 microsecond to 0.6 microsecond.
It is provided in this embodiment to avoid the LTE of Pilot Interference with the device of frequency linear networking, for executing shown in Fig. 1-Fig. 7
Method technical solution, implementing principle and technical effect are similar, and details are not described herein.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of avoid the LTE of Pilot Interference with the method for frequency linear networking, which is characterized in that including：
Group is carried out respectively to first community and second community using 4 antenna port operating modes or 2 antenna port operating modes
Net, the first community and the second community are the neighboring community on linear distribution region；
The PCI of the Physical Cell Identifier PCI and the second community of the first community is respectively set；
Wherein, the PCI of the first community is different from the PCI of the second community, and PCI pairs of 6 modulus of the first community
The result of operation is identical as the result of PCI pairs of 6 modulo operations of the second community, to avoid the first community and described the
Pilot Interference between two cells；
Networking carried out respectively to the first community and the second community according to 4 antenna port operating modes, described first
Cell includes port 0, port 1, port 2 and port 3, and the second community includes port 0, port 1, port 2 and port 3,
It is then described to be respectively set before the PCI of the first community and PCI of the second community, further include：
The port 0 and the antenna where port 3 that the first community is arranged are carried out towards a direction on linear distribution region
Covering, and the antenna where the port 1 of the first community and port 2 is carried out towards another direction on linear distribution region
Covering；
Be arranged the port 0 of the second community and antenna where port 3 towards on linear distribution region with the first community
Port 0 and port 3 where the identical direction of antenna covered, and the port 1 of the second community and where port 2
Antenna is covered towards direction identical with the antenna where the port 1 of the first community and port 2 on linear distribution region
Lid；
Networking carried out respectively to the first community and the second community according to 2 antenna port operating modes, described first
Cell includes port 0 and port 1, and the second community includes port 0 and port 1, then described to be respectively set described first small
Before the PCI in the area and PCI of the second community, further include：
Antenna where the port 0 of the first community is arranged is covered towards a direction on linear distribution region, and
Antenna where the port 1 of the first community is covered towards another direction on linear distribution region；
Antenna where the port 0 of the second community is set towards the port 0 with the first community on linear distribution region
The identical direction of antenna at place is covered, and the antenna where the port 1 of the second community is towards linear distribution region
Upper direction identical with the antenna at 1 place of port of the first community is covered.
2. according to the method described in claim 1, it is characterized in that, the downlink of the first community and the second community is passed
Defeated pattern is respectively set to diversity mode 2 or diversity mode 4.
3. according to the method described in claim 1, it is characterized in that, port 0 and the first community of the first community
Port 1 includes the first radio-frequency channel and the second radio-frequency channel, then by first radio-frequency channel of each port and described the
The reference time delay of the downlink signal of two radio-frequency channels is set as 0.3 microsecond to 0.6 microsecond；
The port 0 of the second community and the port 1 of the second community include third radio-frequency channel and the 4th radio-frequency channel,
The reference time delay of the downlink signal of the third radio-frequency channel of each port and the 4th radio-frequency channel is then set as 0.3
Microsecond is to 0.6 microsecond.
4. a kind of avoid the LTE of Pilot Interference with the device of frequency linear networking, which is characterized in that including：
Processing module, for small to first community and second using 4 antenna port operating modes or 2 antenna port operating modes
Area carries out networking respectively, and the first community and the second community are the neighboring community on linear distribution region；
Setup module, the PCI of Physical Cell Identifier PCI and the second community for the first community to be respectively set；
Wherein, the PCI of the first community is different from the PCI of the second community, and PCI pairs of 6 modulus of the first community
The result of operation is identical as the result of PCI pairs of 6 modulo operations of the second community to avoid the first community and described the
Pilot Interference between two cells；
If the processing module carries out group respectively using 4 antenna port operating modes to the first community and the second community
Net, the first community includes port 0, port 1, port 2 and port 3, and the second community includes port 0, port 1, end
Mouthfuls 2 and port 3, then the setup module be additionally operable to：
The port 0 and the antenna where port 3 that the first community is arranged are carried out towards a direction on linear distribution region
Covering, and the antenna where the port 1 of the first community and port 2 is carried out towards another direction on linear distribution region
Covering；
Be arranged the port 0 of the second community and antenna where port 3 towards on linear distribution region with the first community
Port 0 and port 3 where the identical direction of antenna covered, and the port 1 of the second community and where port 2
Antenna is covered towards direction identical with the antenna where the port 1 of the first community and port 2 on linear distribution region
Lid；
If the processing module carries out group respectively using 2 antenna port operating modes to the first community and the second community
Net, the first community include port 0 and port 1, and the second community includes port 0 and port 1, then the setup module
It is additionally operable to：
Antenna where the port 0 of the first community is arranged is covered towards a direction on linear distribution region, and
Antenna where the port 1 of the first community is covered towards another direction on linear distribution region；
Antenna where the port 0 of the second community is set towards the port 0 with the first community on linear distribution region
The identical direction of antenna at place is covered, and the antenna where the port 1 of the second community is towards linear distribution region
Upper direction identical with the antenna at 1 place of port of the first community is covered.
5. device according to claim 4, which is characterized in that the setup module is additionally operable to the first community and institute
The downlink transfer pattern for stating second community is respectively set to TM2 diversity modes or TM4 diversity modes.
6. device according to claim 4, which is characterized in that the port 0 of the first community and the first community
Port 1 includes the first radio-frequency channel and the second radio-frequency channel, then the setup module is additionally operable to described the of each port
The reference time delay of the downlink signal of one radio-frequency channel and second radio-frequency channel is set as 0.3 microsecond to 0.6 microsecond；
The port 0 of the second community and the port 1 of the second community include third radio-frequency channel and the 4th radio-frequency channel,
Then the setup module is additionally operable to the downlink signal of the third radio-frequency channel and the 4th radio-frequency channel of each port
Reference time delay be set as 0.3 microsecond to 0.6 microsecond.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313373A (en) * | 2012-03-15 | 2013-09-18 | 中兴通讯股份有限公司 | Cell-based RS (Remote Sensing) beacon channel power calibrating method, base station and UE (User Equipment) |
| CN103686742A (en) * | 2013-12-25 | 2014-03-26 | 广东省电信规划设计院有限公司 | PCI planning method and device |
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| US9161236B2 (en) * | 2010-03-29 | 2015-10-13 | Lg Electronics Inc. | Method and apparatus for measurement for inter-cell interference coordination in radio communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313373A (en) * | 2012-03-15 | 2013-09-18 | 中兴通讯股份有限公司 | Cell-based RS (Remote Sensing) beacon channel power calibrating method, base station and UE (User Equipment) |
| CN103686742A (en) * | 2013-12-25 | 2014-03-26 | 广东省电信规划设计院有限公司 | PCI planning method and device |
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