CN106162615A - A kind of solve PCI confusion or the method for conflict, device and equipment in LAA system - Google Patents

Abstract

The invention discloses and a kind of solve PCI confusion or the method for conflict in LAA system, including: in unauthorized frequency range, base station obtains the information of adjacent LAA SCell；Information based on the described LAA SCell obtained and the adjacent area list information of self maintained, it is determined whether PCI confusion or conflict can occur；Determine time PCI confusion or conflict can occur, the corresponding PCI value adjusting corresponding LAA SCell.The present invention further simultaneously discloses device and the equipment realizing described method.

Description

A kind of solve PCI confusion or the method for conflict, device and equipment in LAA system

Technical field

The mandate auxiliary that the present invention relates in the communications field accesses (Licensed-Assisted Access, LAA) Technology, particularly relates to Physical Cell Identifier (Physical Cell ID, PCI) in a kind of solution LAA system Method, device and the equipment obscured or conflict.

Background technology

The Physical Cell Identifier (PCI, Physical Cell ID) of LTE is for distinguishing the wireless communication of different districts Number, it is ensured that in the coverage of related cell, there is no identical Physical Cell Identifier.If two adjacent little The identical PCI of district's distribution, can cause in overlapping region that at most only one of which community can be by terminal in this case Detect, and terminal can only synchronize to one of them community when search of initial zone, and this community is not necessarily Being most suitable, this situation is referred to as PCI conflict；If the two of a community neighbor cells have identical PCI be A, if terminal request is switched to the community that PCI is A in this case, base station will be unaware that Which is Target cell, and this situation is referred to as PCI confusion.

In LAA system, owing to the information between base station and base station does not the most support X2 interface, adjacent base station May be that same PCI value is distributed in the community being deployed in identical/close positions when PCI allocation, therefore may be used Can cause PCI conflict or PCI confusion；Further, since different operators uses same in unauthorized frequency range One PCI set, therefore, different operators may be that the community being deployed in identical/close positions is distributed same One PCI value, thus cause possible PCI conflict or PCI confusion.

Summary of the invention

For solving the technical problem of existing existence, the embodiment of the present invention provides one to solve PCI in LAA system Method, device and the equipment obscured or conflict.

Embodiments provide and a kind of solve PCI confusion or the method for conflict, the party in LAA system Method includes:

In unauthorized frequency range, base station obtains the information of adjacent LAA SCell；

Information based on the described LAA SCell obtained and the adjacent area list information of self maintained, it is determined that Whether PCI confusion or conflict can occur；

Determine time PCI confusion or conflict can occur, the corresponding PCI value adjusting corresponding LAA SCell.

The embodiment of the present invention additionally provides and a kind of solves PCI confusion or the device of conflict in LAA system, should Device includes: acquisition module, determination module and modified module；Wherein,

Described acquisition module, in unauthorized frequency range, obtains the information of adjacent LAA SCell；

Described determination module, for information based on the described LAA SCell obtained and base station maintenance Adjacent area list information, it is determined whether PCI confusion or conflict can occur；

Described modified module, is used for determining time PCI confusion or conflict can occur, and corresponding adjusts corresponding LAA The PCI value of SCell.

The embodiment of the present invention additionally provides a kind of base station, and this base station includes: solution LAA system mentioned above Middle PCI confusion or the device of conflict.

PCI confusion or the method for conflict, device and set in the solution LAA system that the embodiment of the present invention provides Standby, in unauthorized frequency range, base station obtains adjacent LAA secondary cell (Secondary Serving Cell, SCell) Information；Information based on the described LAA SCell obtained and the adjacent area list information of self maintained, Determine whether PCI confusion or conflict；Determine time PCI confusion or conflict can occur, corresponding adjust phase Answer the PCI value of LAA SCell.The embodiment of the present invention can effectively solve PCI in existing LAA system and mix The problem confused or conflict, even the situation of different operator also can effectively solve, it is not necessary to manually participate in, it is not necessary to Negotiation between different operator, it is achieved method is easy, improves the experience of terminal use.

Accompanying drawing explanation

In accompanying drawing (it is not necessarily drawn to scale), similar reference can be at different views Described in similar parts.The similar reference numerals with different letter suffix can represent the difference of similar component Example.Accompanying drawing generally shows each embodiment discussed herein by way of example and not limitation.

Fig. 1 is to solve the method for PCI confusion or conflict in LAA system described in the embodiment of the present invention to realize stream Cheng Tu；

Fig. 2 is to solve the apparatus structure of PCI confusion or conflict in LAA system described in the embodiment of the present invention to show It is intended to；

Fig. 3 is to solve the architecture of base station of PCI confusion or conflict in LAA system described in the embodiment of the present invention to show It is intended to；

Fig. 4 is to solve the method for PCI confusion or conflict in LAA system described in scene two of the present invention to realize Flow chart；

Fig. 5 is to solve PCI confusion or the network frame of conflict in LAA system described in scene two of the present invention Schematic diagram；

Fig. 6 is that in scene three of the present invention, the method for unit/terminal misalignment calculating adjacent cell site location information is shown It is intended to；

Fig. 7 is that in scene three of the present invention, the method for multiple terminals situation calculating adjacent cell website horizontal position information is shown It is intended to；

Fig. 8 is the method schematic diagram that in scene three of the present invention, multiple terminals situation calculates adjacent cell website height.

Detailed description of the invention

In embodiments of the invention, in unauthorized frequency range, base station obtains adjacent LAA secondary cell The information of (Secondary Serving Cell, SCell)；Letter based on the described LAA SCell obtained Breath and the adjacent area list information of self maintained, it is determined whether PCI confusion or conflict can occur；Determine and can send out When raw PCI confusion or conflict, the corresponding PCI value adjusting corresponding LAA SCell.

Below in conjunction with the accompanying drawings and the present invention is described in further detail by specific embodiment.

Fig. 1 is to solve the method for PCI confusion or conflict in LAA system described in the embodiment of the present invention to realize stream Cheng Tu, as it is shown in figure 1, include:

Step 101: in unauthorized frequency range, base station obtains the information of adjacent LAA SCell；

Step 102: information based on the described LAA SCell obtained and the Neighboring Cell List of self maintained Information, it is determined whether PCI confusion or conflict can occur；

Step 103: determine time PCI confusion or conflict can occur, the corresponding PCI adjusting corresponding LAA SCell Value.

The embodiment of the present invention can effectively solve PCI confusion or the problem of conflict in existing LAA system, i.e. The situation of Shi Shiyi operator also can effectively solve, it is not necessary to manually participates in, it is not necessary to the negotiation between different operator, Implementation method is easy, improves the experience of terminal use.

In the embodiment of the present invention, the information of described adjacent LAA SCell, including:

The PCI value of described adjacent LAA SCell or the PCI value of described adjacent LAA SCell and position Information or the PCI value of described adjacent LAA SCell and auxiliary information；Described auxiliary information includes following One or more information:

Terminal positional information, ripple reach the time (Time of Arrival, TOA), ripple reaches time difference (Time Difference of Arrival, TDOA), direction of arrival (Direction of Arrival, DOA), Bo Dajiao Degree (Angle of Arrival, AOA), carrier wave and interference and noise ratio (Carrier to Interference Noise Ratio, CINR), received signal strength indicator (Received Signal Strength Indication, RSSI), Relative delay (Relative Delay, RD), round-trip delay (Round Trip Delay, RTD).

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value time, the method includes:

Base station receives the PCI value of the described adjacent LAA SCell of terminal to report, described adjacent LAA SCell The LAA SCell that accessed more than terminal of signal intensity or predetermined threshold value；

That is: identified adjacent LAA SCell is possibly due to the LAA that signal intensity has accessed more than terminal SCell is identified, it is also possible to is because signal intensity and is identified more than a certain predetermined threshold value.

Determine all LAA that in the unauthorized frequency range Neighboring Cell List of self maintained, existence is identical with described PCI value SCell, and obtain the positional information of described all LAA SCell；Described all LAA SCell include institute State adjacent LAA SCell；

Calculate the distance between each two LAA SCell in described all LAA SCell, determine described distance During less than or equal to predeterminable range, the PCI value of a LAA SCell in amendment said two LAA SCell.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value and during positional information, the method includes:

Base station receives the PCI value of the described adjacent LAA SCell of terminal to report, described adjacent LAA SCell The LAA SCell that accessed more than terminal of signal intensity or predetermined threshold value；

That is: identified adjacent LAA SCell is possibly due to the LAA that signal intensity has accessed more than terminal SCell is identified, it is also possible to is because signal intensity and is identified more than a certain predetermined threshold value.

Determine and the unauthorized frequency range Neighboring Cell List of self maintained exists or many identical with described PCI value During individual LAA SCell, the positional information of adjacent LAA SCell described in indicating terminal to report；

Calculate identical with PCI value in described unauthorized frequency range Neighboring Cell List for described adjacent LAA SCell each Distance between LAA SCell, when determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value, direction of arrival and terminal positional information time, the method includes:

Base station receives the PCI value of the described adjacent LAA SCell of terminal to report, described adjacent LAA SCell The LAA SCell that accessed more than terminal of signal intensity or predetermined threshold value；

That is: identified adjacent LAA SCell is possibly due to the LAA that signal intensity has accessed more than terminal SCell is identified, it is also possible to is because signal intensity and is identified more than a certain predetermined threshold value.

Determine and the unauthorized frequency range Neighboring Cell List of self maintained exists or many identical with described PCI value During individual LAA SCell, the direction of arrival of adjacent LAA SCell described in indicating terminal to report and terminal location letter Breath；

Direction of arrival and terminal positional information according to described adjacent LAA SCell calculate described adjacent LAA The positional information of SCell；

Calculate each identical with PCI value in described unauthorized frequency range Neighboring Cell List of described adjacent LAA SCell Distance between individual LAA SCell, when determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

In one embodiment, the described direction of arrival according to described adjacent LAA SCell and terminal location letter Breath calculates the positional information of described adjacent LAA SCell, including:

Obtain the terminal direction of arrival from described adjacent LAA SCell at least two position and end The end positional information in said two position, according to said two direction of arrival and two terminal positional information meters Calculate the positional information of described adjacent LAA SCell.

In one embodiment, the described direction of arrival according to described adjacent LAA SCell and terminal location letter Breath calculates the positional information of described adjacent LAA SCell, including:

Obtain the angle of the described adjacent LAA SCell direction of arrival to each terminal and horizontal plane, according to institute The horizontal position information stating angle and each counterpart terminal asks for described adjacent LAA SCell corresponding each end The horizontal position information of end, horizontal position information based on the corresponding each terminal of described adjacent LAA SCell, Calculate the horizontal position information of described adjacent LAA SCell；

Horizontal position information, the horizontal position information of each terminal and institute according to this adjacent LAA SCell State the adjacent LAA SCell direction of arrival described adjacent LAA SCell of calculating corresponding each end to each terminal The elevation information of end, elevation information based on the corresponding each terminal of described adjacent LAA SCell calculates described phase The elevation information of adjacent LAA SCell.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value time, the method includes:

Base station self obtains the PCI value of described adjacent LAA SCell, the signal of described adjacent LAA SCell Intensity is more than LAA SCell or the predetermined threshold value that terminal has accessed；

That is: identified adjacent LAA SCell is possibly due to the LAA that signal intensity has accessed more than terminal SCell is identified, it is also possible to is because signal intensity and is identified more than a certain predetermined threshold value.

Determine and the unauthorized frequency range Neighboring Cell List of self maintained exists or many identical with described PCI value Individual LAA SCell；

Calculate described adjacent LAA SCell identical with described PCI value with existence in unauthorized frequency range Neighboring Cell List Each LAA SCell between distance, determine described distance less than or equal to predeterminable range time, revise two The PCI value of a LAA SCell in individual LAA SCell.

The embodiment of the present invention additionally provides and a kind of solves PCI confusion or the device of conflict in LAA system, as Shown in Fig. 2, this device includes: acquisition module 201, determination module 202 and modified module 203；Wherein,

Described acquisition module 201, in unauthorized frequency range, obtains the information of adjacent LAA SCell；

Described determination module 202, for information based on the described LAA SCell obtained and base station dimension The adjacent area list information protected, it is determined whether PCI confusion or conflict can occur；

Described modified module 203, is used for determining time PCI confusion or conflict can occur, and corresponding adjusts corresponding LAA The PCI value of SCell.

The embodiment of the present invention can effectively solve PCI confusion or the problem of conflict in existing LAA system, i.e. The situation of Shi Shiyi operator also can effectively solve, it is not necessary to manually participates in, it is not necessary to the negotiation between different operator, Implementation method is easy, improves the experience of terminal use.

In the embodiment of the present invention, the information of described adjacent LAA SCell, including:

The PCI value of described adjacent LAA SCell or the PCI value of described adjacent LAA SCell and position Information or the PCI value of described adjacent LAA SCell and auxiliary information；

Wherein, described auxiliary information includes one or more of information:

Described terminal positional information, ripple reach time TOA, ripple reaches time difference TDOA, direction of arrival DOA, Weighting vector AOA, carrier wave and interference and noise ratio CINR, received signal strength indicator RSSI, relative prolong RD, round-trip delay RTD late.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value time,

Described acquisition module 201, for receiving the PCI value of the described adjacent LAA SCell of terminal to report, The signal intensity of described adjacent LAA SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module 202, exists and institute in the unauthorized frequency range Neighboring Cell List determining base station maintenance State all LAA SCell that PCI value is identical, and obtain the positional information of described all LAA SCell；Institute State all LAA SCell and include described adjacent LAA SCell；Calculate in described all LAA SCell every Distance between two LAA SCell；

Described modified module 203, when being used for determining described distance less than or equal to predeterminable range, revises described two The PCI value of a LAA SCell in individual LAA SCell.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value and during positional information,

Described acquisition module 201, for receiving the PCI value of the described adjacent LAA SCell of terminal to report, The signal intensity of described adjacent LAA SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module 202, exists and institute in the unauthorized frequency range Neighboring Cell List determining base station maintenance When stating the identical one or more LAA SCell of PCI value, adjacent LAA SCell described in indicating terminal to report Positional information；Calculate described adjacent LAA SCell and PCI value phase in described unauthorized frequency range Neighboring Cell List The same distance between each LAA SCell；

Described modified module 203, when being used for determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value, direction of arrival and terminal positional information time,

Described acquisition module 201, for receiving the PCI value of the described adjacent LAA SCell of terminal to report, The signal intensity of described adjacent LAA SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module 202, exists and institute in the unauthorized frequency range Neighboring Cell List determining base station maintenance When stating the identical one or more LAA SCell of PCI value, adjacent LAA SCell described in indicating terminal to report Direction of arrival and terminal positional information；

It is additionally operable to the direction of arrival according to described adjacent LAA SCell and terminal positional information calculates described adjacent The positional information of LAA SCell, calculates described adjacent LAA SCell and described unauthorized frequency range Neighboring Cell List Distance between each LAA SCell that middle PCI value is identical；

Described modified module 203, when being used for determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

In one embodiment, the information of described adjacent LAA SCell includes: described adjacent LAA SCell PCI value time,

Described acquisition module 201, for obtaining the PCI value of described adjacent LAA SCell, described adjacent LAA The signal intensity of SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module 202, exists and institute in the unauthorized frequency range Neighboring Cell List determining base station maintenance State one or more LAA SCell that PCI value is identical；Calculate described adjacent LAA SCell and unauthorized frequency There is the distance between each LAA SCell identical with described PCI value in section Neighboring Cell List；

Described modified module 203, when being used for determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

In one embodiment, described determination module 202 according to described adjacent LAA SCell direction of arrival and Terminal positional information calculates the positional information of described adjacent LAA SCell, including:

Obtain the terminal direction of arrival from described adjacent LAA SCell at least two position and end The end positional information in said two position, according to said two direction of arrival and two terminal positional information meters Calculate the positional information of described adjacent LAA SCell.

In one embodiment, described determination module 202 according to described adjacent LAA SCell direction of arrival and Terminal positional information calculates the positional information of described adjacent LAA SCell, including:

Obtain the angle of the described adjacent LAA SCell direction of arrival to each terminal and horizontal plane, according to institute The horizontal position information stating angle and each counterpart terminal asks for described adjacent LAA SCell corresponding each end The horizontal position information of end, horizontal position information based on the corresponding each terminal of described adjacent LAA SCell, Calculate the horizontal position information of described adjacent LAA SCell；

Horizontal position information, the horizontal position information of each terminal and institute according to this adjacent LAA SCell State the adjacent LAA SCell direction of arrival described adjacent LAA SCell of calculating corresponding each end to each terminal The elevation information of end, elevation information based on the corresponding each terminal of described adjacent LAA SCell calculates described phase The elevation information of adjacent LAA SCell.

The embodiment of the present invention additionally provides a kind of base station, as it is shown on figure 3, this base station includes: described in Fig. 2 Solve PCI confusion or the device of conflict in LAA system.

Below in conjunction with concrete application scenarios, present invention is described.

Scene one

In this application scene, the PCI value of base station adjacent LAA SCell based on terminal to report, solve not award PCI confusion problem in power frequency range.

In unauthorized frequency range, it is assumed that the LAA SCell 1, this LAA SCell that terminal access carrier 1 is disposed The PCI value of 1 is 0.The method includes following step:

Step one: terminal has, to base station report measurement results, instruction, the neighbour that signal is higher in unauthorized frequency range District LAA SCell#2 (PCI#1), and report the PCI value of this adjacent area LAA SCell, it may be assumed that PCI#1；

Wherein, described measurement result comprises the steps that signal to noise ratio, refers to reference to reception power and received signal strength The information such as show.

Step 2: base station finds to exist and this adjacent area in the Neighboring Cell List of the unauthorized frequency range oneself safeguarded The LAA SCell that PCI value is identical, just obtains these PCI values (PCI#1) correspondences all under its coverage The positional information of LAA SCell；

Step 3: base station, according to the location information of cell of all PCI#1 obtained, calculates described all LAA Distance between each two community in SCell；If the distance between certain Liang Ge community is less than or equal to a certain specific Distance, then need to revise the PCI value of one of them community；If the distance between Liang Ge community is more than a certain pre- If distance, then without considering the PCI confusion problem between different operator.

Here, a certain predeterminable range herein is arranged by operator.

Scene two

In this application scene, the PCI value of base station adjacent LAA SCell based on terminal to report and positional information, Solve the PCI confusion problem in unauthorized frequency range.

In unauthorized frequency range, it is assumed that the LAA SCell 1, this LAA SCell that terminal access carrier 1 is disposed The PCI value of 1 is 0.As shown in Figure 4, the method comprises the following steps:

Step one: terminal has, to base station report measurement results, instruction, the neighbour that signal is higher in unauthorized frequency range District LAA SCell#2 (PCI#1), and report the PCI value of its correspondence；

Step 2: base station finds to exist and this PCI value in the Neighboring Cell List of the unauthorized frequency range oneself safeguarded A same LAA SCell (LAA SCell#3/LAA SCell#4), as shown in Figure 5, it is appreciated that may The two kinds of PCI confusion problems existed:

1) A SCell#3 is not in LAA SCell#1 Neighboring Cell List: may cause another unknown cell PCI confusion problem.

2) A SCell#4 is in LAA SCell#1 Neighboring Cell List: current service cell may be caused PCI Confounding issues.

Step 3: base station instruction terminal removes to obtain the positional information of LAA SCell#2 (PCI#1)；

Step 4: terminal obtains the positional information of LAA SCell#2 (PCI#1), such as: cross direction of arrival And terminal displacement determines；

Step 5: terminal reports the positional information of the LAA SCell#2 (PCI#1) obtained to base station；

Step 6: base station is according to the positional information of the LAA SCell#2 (PCI#1) of terminal to report and not Authorize the LAA SCell#3 (PCI#1) or LAA SCell in the Neighboring Cell List of frequency range with identical PCI value The positional information of #4 (PCI#1), calculates distance d between the two community；

If d > D, then without considering the PCI replication problem between different operator；If d≤D, then need to repair Change the PCI value of one of them community.

Parameter D herein is arranged by operator, can be 2 times of station spacings.

Scene three

In this application scene, the PCI value of base station adjacent LAA SCell based on terminal to report and auxiliary information, Solve the PCI confusion problem in unauthorized frequency range.

Described auxiliary information includes: terminal positional information, ripple reach time (Time of Arrival, TOA), ripple Reach time difference (Time Difference of Arrival, TDOA), direction of arrival (Direction of Arrival, DOA), weighting vector (Angle of Arrival, AOA), carrier wave and interference and noise ratio (Carrier to Interference Noise Ratio, CINR), received signal strength indicator (Received Signal Strength Indication, RSSI), relative delay (Relative Delay, RD), round-trip delay (Round Trip Delay, RTD) one or more parameter in.

Below with auxiliary information as direction of arrival with as a example by terminal positional information, PCI in unauthorized frequency range is described The solution of confounding issues.The method includes following step:

In unauthorized frequency range, it is assumed that the LAA SCell 1, this LAA SCell that terminal access carrier 1 is disposed The PCI value of 1 is 0.The method includes following step:

Step one: terminal has, to base station report measurement results, instruction, the neighbour that signal is higher in unauthorized frequency range District LAA SCell#2 (PCI#1), and report this adjacent area PCI value；

Step 2: base station finds to exist and this PCI value in the Neighboring Cell List of the unauthorized frequency range oneself safeguarded An identical LAA SCell (LAA SCell#3/LAA SCell#4), it is appreciated that two kinds that may be present PCI confusion problem:

LAA SCell#3 is not in LAA SCell#1 Neighboring Cell List: another unknown cell may be caused PCI Confounding issues.

LAA SCell#4 is in LAA SCell#1 Neighboring Cell List: current service cell may be caused PCI Confounding issues.

Step 3: the direction of arrival of base station indicating terminal to report LAA SCell#2 (PCI#1) and terminal position Confidence ceases；

Step 4: terminal is measured and reports direction of arrival and the terminal location of LAA SCell#2 (PCI#1) Information；

Step 5: base station, according to the direction of arrival of terminal to report and terminal positional information, calculates LAA SCell#2 (PCI#1) positional information；

Step 6: base station is according to the positional information of LAA SCell#2 (PCI#1) and unauthorized frequency range Neighboring Cell List has LAA SCell#3 (the PCI#1)/LAA SCell#4 (PCI#1) of identical PCI value Positional information, and calculate distance d between the two community；

If d > D, then without considering the PCI replication problem between different operator；If d≤D, then need to repair Change PCI.

Parameter D herein is arranged by operator, can be 2 times of station spacings.

In step 5 base station is given below and calculates two kinds of methods of described LAA SCell#2 positional information, two kinds The direction of arrival from described LAA SCell#2 that method is all recorded by terminal and terminal positional information, come Determine the position of LAA SCell.

First method considers to exist between base station and terminal the situation of direct-view atmosphere.

Second method considers certainty of measurement error, solves base station position information by the method for statistics.

Both approaches all includes following three step:

1) direction of arrival from adjacent cell website that terminal receives is obtained；

2) positional information of described terminal is obtained；

3) use described direction of arrival and described positional information, determine target BS position.

The specific implementation of two kinds of methods is as follows:

1, the terminal direction of arrival from LAA SCell#2 at least two position and terminal are obtained Positional information.

This acquisition process can be realized by base station triggers terminal to report, it is also possible to independently reported reality by terminal Existing.

Obtain the terminal direction of arrival from LAA SCell#2 at least two position and the position of terminal Confidence ceases, and can be the single terminal direction of arrival at least two position and positional information, it is also possible to be many Individual terminal direction of arrival on diverse location and positional information.

Terminal positional information can be obtained by the GPS module of terminal, it is also possible to is obtained by architecture technology ?.

2, based on direction of arrival and terminal positional information, the positional information of LAA SCell#2 is calculated (i.e. Latitude and longitude of base station information, or latitude and longitude of base station information and elevation information)

Above-mentioned first method with unit/terminal misalignment example, illustrate base station how based on direction of arrival and Terminal positional information, calculates adjacent cell website, it may be assumed that the position of LAA SCell#2.

As shown in Figure 6, it is assumed that this terminal known coordinate in position 1 is (x₁,y₁,z₁), at the coordinate of position 2 For (x₂,y₂,z₂).Adjacent cell website unknown position coordinate be (x, y, z).

According to terminal at the direction of arrival of diverse location, angle parameter α can be obtained, beta, gamma, θ, permissible from Fig. 6 Finding out, described α is the angle of the direction of arrival to position 1 and horizontal plane, and described β is the ripple to position 2 Reaching the angle in direction and horizontal plane, described γ is the angle between two direction of arrival, and described θ is position 2 He Adjacent cell website angle in the horizontal direction and between the line of position 1.

According to terminal at position 1 and the positional information of position 2, it is possible to obtain:

$\mathrm{CE}=\frac{z_2-z_1}{\tan \mathrm{\α}},\mathrm{DE}=\sqrt{{(y_2-y_1)}^2+{(x_2-x_1)}^2}.$

In triangle CDE, can obtain according to the cosine law:

$\mathrm{CD}=\sqrt{{\mathrm{CE}}^2+{\mathrm{DE}}^2-2\mathrm{CE}\·\mathrm{DE}\cos \mathrm{\θ}}$

In view of AB=BC tan α, AB=BD tan β, and

$\cos \mathrm{\γ}=\frac{2{\mathrm{AB}}^2+{\mathrm{BC}}^2+{\mathrm{BD}}^2-{\mathrm{CD}}^2}{2\sqrt{{\mathrm{AB}}^2+{\mathrm{BC}}^2}\sqrt{{\mathrm{AB}}^2+{\mathrm{BD}}^2}}=\frac{2{\mathrm{AB}}^2+{\left(\frac{1}{\tan \mathrm{\α}}\right)}^2{\mathrm{AB}}^2+{\left(\frac{1}{\tan \mathrm{\β}}\right)}^2{\mathrm{AB}}^2-{\mathrm{CD}}^2}{2{\mathrm{AB}}^2\sqrt{1+{\left(\frac{1}{\tan \mathrm{\α}}\right)}^2}\sqrt{1+{\left(\frac{1}{\tan \mathrm{\β}}\right)}^2}}$ So far, Elevation information to base station:

$\mathrm{AB}+z_2=\frac{\mathrm{CD}}{\sqrt{2+{\left(\frac{1}{\tan \mathrm{\α}}\right)}^2+{\left(\frac{1}{\tan \mathrm{\β}}\right)}^2-2\cos \mathrm{\γ}\sqrt{1+{\left(\frac{1}{\tan \mathrm{\α}}\right)}^2}\sqrt{1+{\left(\frac{1}{\tan \mathrm{\β}}\right)}^2}}}+z_2$

Based on the base station elevation information obtained, just may know that the range information of terminal and base station:

$\mathrm{BC}=\frac{\mathrm{AB}}{\tan \mathrm{\α}},\mathrm{BD}=\frac{\mathrm{AB}}{\tan \mathrm{\β}}.$

Based on BD, BC and terminal positional information, solve equation below group:

$\left\{\begin{array}{c}\mathrm{BC}=\sqrt{{(y_2-y)}^2+{(x_2-x)}^2}\\ \mathrm{BD}=\sqrt{{(y_1-y)}^2+{(x_1-x)}^2}\end{array}\right.$

Just can obtain base station latitude and longitude information (x, y).

Second method, with multiple terminals situation example, illustrates that how base station is based on direction of arrival and terminal location Information, calculates the position of adjacent cell website.

Measurement error is likely to be due to the direction of arrival that direction of arrival is non-main diameter direction and causes, or due to terminal GPS positioning precision cause not.

As shown in Figure 7, it is assumed that the position coordinates of known terminal 1 is (x₁,y₁,z₁), the position coordinates of terminal 2 is (x₂,y₂,z₂), the position coordinates of terminal 3 is (x₃,y₃,z₃), the position coordinates of terminal 4 is (x₄,y₄,z₄), unknown adjacent little The position coordinates of district's website be (x, y, z).

1, horizontal position information and horizontal direction angle information according to terminal ask for adjacent cell website horizontal level Valuation (as shown in black color dots), rejects erroneous point；

2, based on adjacent cell website horizontal level valuation, adjacent cell website horizontal level is obtained by the method for statistics (x, y) (as shown in white point) for statistical value；

3, based on obtain adjacent cell website horizontal level statistical value (x, y), the horizontal position confidence of each terminal Breath and described adjacent LAA SCell to each terminal direction of arrival calculate calculate adjacent cell website height believe Breath valuation (as shown in black color dots), as shown in Figure 8；

4, according to adjacent cell website height valuation, adjacent cell website height statistical value z is obtained by the method for statistics (as shown in white point).

Here, shown in the computational methods reference foregoing embodiments of described valuation and statistical value, the most not Describe in detail again.

Scene four

In this application scene, the information of adjacent cells that base station is measured based on self, solve the PCI in unauthorized frequency range Confounding issues.The method needs base station to add the receiver module of similar terminal.The method comprises the following steps:

Step one: base station is recorded by the receiver module of similar terminal has signal higher in unauthorized frequency range Unknown adjacent area exists, and obtains this adjacent area PCI and adjacent area approximate location；

Step 2: base station lookups is all and this PCI value on the unauthorized frequency range neighborhood region correlation chart oneself safeguarded Identical location information of cell.

Step 3: base station calculates this unknown adjacent area and all each communities with identical PCI in Neighboring Cell List Between distance.

If the distance between certain Liang Ge community is less than a certain distance to a declared goal, then need to revise Neighboring Cell List small area PCI value；If the distance between certain Liang Ge community is more than or equal to a certain distance to a declared goal, then different without considering PCI replication problem between operator.

A certain distance to a declared goal herein is arranged by operator, can be 2 times of station spacings.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use hardware embodiment, software implementation or combine software and The form of the embodiment of hardware aspect.And, the present invention can use and wherein include calculating one or more The computer-usable storage medium of machine usable program code (includes but not limited to disk memory and optical storage Device etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program according to embodiments of the present invention Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions flowchart and/or side Flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frame Close.Can provide these computer program instructions to general purpose computer, special-purpose computer, Embedded Processor or The processor of other programmable data processing device is to produce a machine so that by computer or other can The instruction that the processor of programming data processing equipment performs produces for realizing in one flow process or multiple of flow chart The device of the function specified in flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device In the computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produces the manufacture including command device, and this command device realizes at one flow process of flow chart or multiple stream The function specified in journey and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented process on computer or other programmable devices, Thus the instruction performed on computer or other programmable devices provides for realizing in one flow process of flow chart Or the step of the function specified in multiple flow process and/or one square frame of block diagram or multiple square frame.

The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention Enclose.

Claims (15)

1. one kind solves PCI confusion or the method for conflict in LAA system, it is characterised in that the method bag Include:

In unauthorized frequency range, base station obtains the information of adjacent LAA SCell；

Information based on the described LAA SCell obtained and the adjacent area list information of self maintained, it is determined that Whether PCI confusion or conflict can occur；

Determine time PCI confusion or conflict can occur, the corresponding PCI value adjusting corresponding LAA SCell.

Method the most according to claim 1, it is characterised in that the information of described adjacent LAA SCell, Including:

The PCI value of described adjacent LAA SCell or the PCI value of described adjacent LAA SCell and position Information or the PCI value of described adjacent LAA SCell and auxiliary information；

Wherein, described auxiliary information includes one or more of information:

Terminal positional information, ripple reach time TOA, ripple reaches time difference TDOA, direction of arrival DOA, ripple Reach angle A OA, carrier wave and interference and noise ratio CINR, received signal strength indicator RSSI, relative delay RD, round-trip delay RTD.

Method the most according to claim 2, it is characterised in that the information of described adjacent LAA SCell During including the PCI value of: described adjacent LAA SCell, the method includes:

Base station receives the PCI value of the described adjacent LAA SCell of terminal to report, described adjacent LAA SCell The LAA SCell that accessed more than terminal of signal intensity or predetermined threshold value；

Determine all LAA that in the unauthorized frequency range Neighboring Cell List of self maintained, existence is identical with described PCI value SCell, and obtain the positional information of described all LAA SCell；Described all LAA SCell include institute State adjacent LAA SCell；

Calculate the distance between each two LAA SCell in described all LAA SCell, determine described distance During less than or equal to predeterminable range, the PCI value of a LAA SCell in amendment said two LAA SCell.

Method the most according to claim 2, it is characterised in that the information of described adjacent LAA SCell Including: when the PCI value of described adjacent LAA SCell and positional information, the method includes:

Base station receives the PCI value of the described adjacent LAA SCell of terminal to report, described adjacent LAA SCell The LAA SCell that accessed more than terminal of signal intensity or predetermined threshold value；

Determine and the unauthorized frequency range Neighboring Cell List of self maintained exists or many identical with described PCI value During individual LAA SCell, the positional information of adjacent LAA SCell described in indicating terminal to report；

Calculate each identical with PCI value in described unauthorized frequency range Neighboring Cell List of described adjacent LAA SCell Distance between individual LAA SCell, when determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

Method the most according to claim 2, it is characterised in that the information of described adjacent LAA SCell During including PCI value, direction of arrival and the terminal positional information of: described adjacent LAA SCell, the method bag Include:

Base station receives the PCI value of the described adjacent LAA SCell of terminal to report, described adjacent LAA SCell The LAA SCell that accessed more than terminal of signal intensity or predetermined threshold value；

Determine and the unauthorized frequency range Neighboring Cell List of self maintained exists or many identical with described PCI value During individual LAA SCell, the direction of arrival of adjacent LAA SCell described in indicating terminal to report and terminal location letter Breath；

Direction of arrival and terminal positional information according to described adjacent LAA SCell calculate described adjacent LAA The positional information of SCell；

Calculate each identical with PCI value in described unauthorized frequency range Neighboring Cell List of described adjacent LAA SCell Distance between individual LAA SCell, when determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

Method the most according to claim 5, it is characterised in that described according to described adjacent LAA SCell Direction of arrival and terminal positional information calculate described adjacent LAA SCell positional information, including:

Obtain the terminal direction of arrival from described adjacent LAA SCell at least two position and end The end positional information in said two position, according to said two direction of arrival and two terminal positional information meters Calculate the positional information of described adjacent LAA SCell.

Method the most according to claim 5, it is characterised in that described according to described adjacent LAA SCell Direction of arrival and terminal positional information calculate described adjacent LAA SCell positional information, including:

Obtain the angle of the described adjacent LAA SCell direction of arrival to each terminal and horizontal plane, according to institute The horizontal position information stating angle and each counterpart terminal asks for described adjacent LAA SCell corresponding each end The horizontal position information of end, horizontal position information based on the corresponding each terminal of described adjacent LAA SCell, Calculate the horizontal position information of described adjacent LAA SCell；

Horizontal position information, the horizontal position information of each terminal and institute according to this adjacent LAA SCell State the adjacent LAA SCell direction of arrival described adjacent LAA SCell of calculating corresponding each end to each terminal The elevation information of end, elevation information based on the corresponding each terminal of described adjacent LAA SCell calculates described phase The elevation information of adjacent LAA SCell.

Method the most according to claim 2, it is characterised in that the information of described adjacent LAA SCell During including the PCI value of: described adjacent LAA SCell, the method includes:

Base station self obtains the PCI value of described adjacent LAA SCell, the signal of described adjacent LAA SCell Intensity is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Determine and the unauthorized frequency range Neighboring Cell List of self maintained exists or many identical with described PCI value Individual LAA SCell；

Calculate described adjacent LAA SCell identical with described PCI value with existence in unauthorized frequency range Neighboring Cell List Each LAA SCell between distance, determine described distance less than or equal to predeterminable range time, revise two The PCI value of a LAA SCell in individual LAA SCell.

9. one kind solves PCI confusion or the device of conflict in LAA system, it is characterised in that this device bag Include: acquisition module, determination module and modified module；Wherein,

Described acquisition module, in unauthorized frequency range, obtains the information of adjacent LAA SCell；

Described determination module, for information based on the described LAA SCell obtained and base station maintenance Adjacent area list information, it is determined whether PCI confusion or conflict can occur；

Described modified module, is used for determining time PCI confusion or conflict can occur, and corresponding adjusts corresponding LAA The PCI value of SCell.

Device the most according to claim 9, it is characterised in that the letter of described adjacent LAA SCell Breath, including:

The PCI value of described adjacent LAA SCell or the PCI value of described adjacent LAA SCell and position Information or the PCI value of described adjacent LAA SCell and auxiliary information；

Wherein, described auxiliary information includes one or more of information:

Described terminal positional information, ripple reach time TOA, ripple reaches time difference TDOA, direction of arrival DOA, Weighting vector AOA, carrier wave and interference and noise ratio CINR, received signal strength indicator RSSI, relative prolong RD, round-trip delay RTD late.

11. devices according to claim 10, it is characterised in that the letter of described adjacent LAA SCell Breath includes: during the PCI value of described adjacent LAA SCell,

Described acquisition module, for receiving the PCI value of the described adjacent LAA SCell of terminal to report, described The signal intensity of adjacent LAA SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module, exists with described in the unauthorized frequency range Neighboring Cell List determining base station maintenance All LAA SCell that PCI value is identical, and obtain the positional information of described all LAA SCell；Described institute LAA SCell is had to include described adjacent LAA SCell；Calculate each two in described all LAA SCell Distance between LAA SCell；

Described modified module, when being used for determining described distance less than or equal to predeterminable range, revises said two The PCI value of a LAA SCell in LAA SCell.

12. devices according to claim 10, it is characterised in that the letter of described adjacent LAA SCell Breath includes: when the PCI value of described adjacent LAA SCell and positional information,

Described acquisition module, for receiving the PCI value of the described adjacent LAA SCell of terminal to report, described The signal intensity of adjacent LAA SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module, exists with described in the unauthorized frequency range Neighboring Cell List determining base station maintenance During the identical one or more LAA SCell of PCI value, adjacent LAA SCell described in indicating terminal to report Positional information；Calculate described adjacent LAA SCell identical with PCI value in described unauthorized frequency range Neighboring Cell List Each LAA SCell between distance；

Described modified module, when being used for determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

13. devices according to claim 10, it is characterised in that the letter of described adjacent LAA SCell Breath includes: during PCI value, direction of arrival and the terminal positional information of described adjacent LAA SCell,

Described acquisition module, for receiving the PCI value of the described adjacent LAA SCell of terminal to report, described The signal intensity of adjacent LAA SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module, exists with described in the unauthorized frequency range Neighboring Cell List determining base station maintenance During the identical one or more LAA SCell of PCI value, adjacent LAA SCell described in indicating terminal to report Direction of arrival and terminal positional information；

It is additionally operable to the direction of arrival according to described adjacent LAA SCell and terminal positional information calculates described adjacent The positional information of LAA SCell, calculates described adjacent LAA SCell and described unauthorized frequency range Neighboring Cell List Distance between each LAA SCell that middle PCI value is identical；

Described modified module, when being used for determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

14. devices according to claim 10, it is characterised in that the letter of described adjacent LAA SCell Breath includes: during the PCI value of described adjacent LAA SCell,

Described acquisition module, for obtaining the PCI value of described adjacent LAA SCell, described adjacent LAA The signal intensity of SCell is more than LAA SCell or the predetermined threshold value that terminal has accessed；

Described determination module, exists with described in the unauthorized frequency range Neighboring Cell List determining base station maintenance One or more LAA SCell that PCI value is identical；Calculate described adjacent LAA SCell adjacent with unauthorized frequency range District's list exists the distance between each LAA SCell identical with described PCI value；

Described modified module, when being used for determining described distance less than or equal to predeterminable range, revises two LAA The PCI value of a LAA SCell in SCell.

15. 1 kinds of base stations, it is characterised in that this base station includes: according to any one of claim 9-14 Solve PCI confusion or the device of conflict in LAA system.