CN103168492A - Same frequency adjacent region selecting method and device - Google Patents
Same frequency adjacent region selecting method and device Download PDFInfo
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- CN103168492A CN103168492A CN2012800019295A CN201280001929A CN103168492A CN 103168492 A CN103168492 A CN 103168492A CN 2012800019295 A CN2012800019295 A CN 2012800019295A CN 201280001929 A CN201280001929 A CN 201280001929A CN 103168492 A CN103168492 A CN 103168492A
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- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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Abstract
The embodiment of the invention discloses a same frequency adjacent region selecting method and device. The same frequency adjacent region selecting method can be used when a user equipment serving region has at least two adjacent regions use a first frequency point and comprises the steps of obtaining positional information of each adjacent region of the first frequency point, obtaining positional information of user equipment, obtaining distances between the user equipment and each adjacent region in dependence on the positional information of each adjacent region of the first frequency point and the positional information of user equipment and determining an adjacent region close to the user equipment as a region corresponding with the service region. The method and device provided by the embodiment of the invention can select an accurate same frequency adjacent region.
Description
Technical Field
The embodiment of the invention relates to the field of mobile communication, in particular to a method and a device for selecting a same-frequency adjacent region.
Background
When an existing operator deploys a Universal Mobile Telecommunications System (UMTS)/Long Term Evolution (LTE) network, due to limited frequency band resources, it is considered to take out a part of Global System for Mobile communications (GSM) frequency bands for deploying UMTS or LTE, which results in that the available frequency bands of the GSM network are less and less, and a compact Broadcast Control Channel (BCCH) frequency reuse mode is required. Under the compact BCCH frequency reuse network planning, because the frequency reuse degree among cells is small, a plurality of same-frequency GSM adjacent cells may exist around one cell.
In the prior art, a user equipment performs pre-synchronization on GSM neighboring cells defined by a system in a serving cell and measures the levels of BCCH frequency points of the neighboring cells, selects a group of neighboring cells with the strongest levels as candidate neighboring cells and reports the candidate neighboring cells to a network side through a measurement report, and each neighboring cell is uniquely identified by a BCCH frequency point and a Base Station Identity Code (BSIC). The network side can select a cell from the adjacent cells reported by the measurement report according to the level value as a target cell to indicate the user equipment to switch or reselect.
When a serving cell has a plurality of adjacent cells using the same frequency point, the following problems exist in the prior art for selecting the adjacent cells:
when the user equipment moves from the coverage of one adjacent cell to the coverage of another adjacent cell, if the frequency points of the two adjacent cells are the same, the user equipment does not try to analyze the BSIC of a new adjacent cell with the same frequency. As shown in fig. 1, a cell a and a cell B use the same BCCH frequency points, which are two neighboring cells of a serving cell S, and a user equipment moves from the coverage of the cell a to the coverage of the cell B, and the user equipment does not continuously analyze BSIC of the cell B because the frequency points are not changed, and reports the BSIC in a measurement report according to the BSIC of the cell a. And the adjacent cell A selected by the network side according to the frequency point and the BSIC is not the adjacent cell B actually measured by the user equipment.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for selecting a same-frequency neighboring cell, so as to select a correct same-frequency neighboring cell when a serving cell has multiple same-frequency neighboring cells.
In a first aspect, a method for selecting neighboring cells with the same frequency is provided, where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, the method includes:
acquiring information of each adjacent cell using the first frequency point, wherein the information of each adjacent cell comprises position information of each adjacent cell;
acquiring the position information of the user equipment;
obtaining the distance between the user equipment and each adjacent cell according to the position information of the user equipment and the position information of each adjacent cell;
and determining a neighboring cell close to the user equipment as a cell corresponding to the first frequency point according to the distance between the user equipment and each neighboring cell.
The first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
In a first possible implementation manner of the first aspect, according to the distance between the user equipment and each of the neighboring cells, a neighboring cell close to the user equipment is determined as a cell corresponding to the first frequency point, and a neighboring cell with a shortest distance to the user equipment may be selected.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, selecting a neighboring cell with a shortest distance to the user equipment further includes:
and if more than one adjacent cell with the shortest distance is connected with each adjacent cell with the shortest distance, receiving the uplink level measurement result of each adjacent cell with the connection, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point.
In a third possible implementation manner of the first aspect, according to the distance between the user equipment and each neighboring cell, a neighboring cell close to the user equipment is determined as a cell corresponding to the first frequency point, and a neighboring cell whose distance from the user equipment is smaller than or equal to a distance threshold may also be selected.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, selecting a neighboring cell whose distance to the user equipment is less than or equal to a distance threshold further includes:
if more than one adjacent cell with the distance less than or equal to the distance threshold is available, establishing connection with each adjacent cell with the distance less than or equal to the distance threshold, receiving an uplink level measurement result of the adjacent cell with the connection established, and selecting a cell with the highest uplink level as a cell corresponding to the first frequency point; or,
if the distance between each adjacent cell using the first frequency point and the user equipment is larger than the distance threshold, the user equipment can establish connection with each adjacent cell using the first frequency point, receive the uplink level measurement result of the adjacent cell establishing connection, and select a cell with the highest uplink level as the cell corresponding to the first frequency point.
In a fifth possible implementation manner of the first aspect, the obtaining of the current location information of the user equipment may include the following positioning methods commonly used in the art:
a positioning method based on single base station measurement information, for example, obtaining the position of the user equipment according to the distance and the arrival azimuth angle of the user equipment relative to the antenna;
a user equipment location positioning method based on signal measurement values, for example, obtaining the location of the user equipment through the signal intensity of the user equipment at different locations away from a base station;
other commonly used positioning methods, such as based on global positioning system, assisted satellite positioning, etc., obtain the location of the user equipment.
In a second aspect, a method for selecting neighboring cells with the same frequency is provided, where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, the method includes:
establishing connection by using each adjacent region of the first frequency point; (ii) a
Receiving the uplink level measurement result of each neighboring cell;
and selecting a cell with the highest uplink level in each adjacent cell as the cell corresponding to the first frequency point.
The first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
In a third aspect, a method for selecting neighboring cells with the same frequency is provided, where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, the method includes:
the user equipment sends a measurement report, wherein the measurement report comprises the frequency points of a plurality of adjacent cells and the measurement information of the plurality of adjacent cells, which are detected by the user equipment;
the frequency points of the plurality of adjacent cells detected by the user equipment comprise first frequency points, and the first frequency points are selected from the frequency points of the plurality of adjacent cells of the measurement report by a base station control node or a server for collecting information from the base station control node;
the user equipment receives a switching or reselection message, wherein the switching or reselection message comprises a neighboring cell using the first frequency point; wherein the one neighboring cell using the first frequency point is determined by the base station control node or a server collecting information from the base station control node according to the method of any one of the first aspect or the second aspect.
In a fourth aspect, a device for selecting neighboring cells with the same frequency is provided, where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, the device includes a cell information management unit, a position detection unit, a distance determination unit, and a first processing unit:
a cell information management unit, configured to acquire information of each neighboring cell using the first frequency point, where the information of each neighboring cell includes location information of each neighboring cell;
a location detection unit for acquiring location information of the user equipment;
a distance determining unit, configured to obtain a distance between the user equipment and each neighboring cell according to the location information of each neighboring cell using the first frequency point, provided by the cell information management unit, and the location information of the user equipment, acquired by the location detecting unit;
and the first processing unit is used for determining one adjacent cell close to the user equipment as the cell corresponding to the first frequency point according to the distance between the user equipment and each adjacent cell obtained by the distance determining unit.
The first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
In a first possible implementation manner of the fourth aspect, the first processing unit includes: the first processing subunit may be configured to select a neighboring cell with a shortest distance to the user equipment as the cell corresponding to the first frequency point.
With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the first processing subunit is specifically configured to:
and if more than one adjacent cell with the shortest distance with the user equipment is connected with each adjacent cell with the shortest distance, receiving an uplink level measurement result of each adjacent cell with the connection, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point.
In a third possible implementation manner of the fourth aspect, the first processing unit includes a second processing subunit, and selects a neighboring cell whose distance to the user equipment is smaller than or equal to a distance threshold as a cell corresponding to the first frequency point.
With reference to the third possible implementation manner of the fourth aspect, in a fourth implementation manner, the second processing subunit is specifically configured to:
if more than one adjacent cell with the distance less than or equal to the distance threshold value with the user equipment is available, establishing connection with each adjacent cell meeting the condition, receiving the uplink level measurement result of each adjacent cell establishing connection, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point; or,
if the distances between all the adjacent cells using the first frequency point and the user equipment are greater than the distance threshold, the user equipment can also establish connection with all the adjacent cells, receive the uplink level measurement result of all the adjacent cells establishing connection, and select the cell with the highest uplink level as the cell corresponding to the first frequency point.
In a fifth aspect, a device for selecting neighboring cells with the same frequency is provided, where when a serving cell of a user equipment has at least two neighboring cells using a first frequency point, the device includes a connection management unit, a receiving unit, and a determining unit:
the connection management unit is used for establishing connection with each adjacent cell using the first frequency point;
a receiving unit, configured to receive an uplink level measurement result of each neighboring cell that establishes the connection;
and the selecting unit is used for selecting the cell with the highest uplink level in each adjacent cell received by the receiving unit as the cell corresponding to the first frequency point.
The first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
In a sixth aspect, a device for selecting neighboring cells with the same frequency is provided, where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, the device includes a transmitter and a receiver:
a transmitter, configured to send a measurement report, where the measurement report includes frequency points of multiple neighboring cells and measurement information of the multiple neighboring cells, where the frequency points are detected by user equipment;
the frequency points of the plurality of adjacent cells detected by the user equipment comprise a first frequency point, wherein the first frequency point is obtained by selecting the frequency point of one adjacent cell from the frequency points of the plurality of adjacent cells of the measurement report by a base station control node or a server for collecting information from the base station control node;
a receiver, configured to receive a handover or reselection message, where the handover or reselection message includes a neighboring cell using the first frequency point;
wherein the one neighboring cell using the first frequency point is determined by the base station control node or a server collecting information from the base station control node according to the method of any one of the first aspect or the second aspect.
The method and the device of the embodiment of the invention can select the same-frequency adjacent cell close to the user equipment when the service cell has a plurality of same-frequency adjacent cells by comparing the distances between the user equipment and each adjacent cell.
Drawings
Fig. 1 is a schematic diagram of a user equipment measuring an adjacent region of the same frequency;
fig. 2 is a flowchart of a method for selecting a neighboring cell with the same frequency according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for selecting a neighboring cell with the same frequency according to another embodiment of the present invention;
fig. 4 is a flowchart of a method for selecting a neighboring cell with the same frequency according to another embodiment of the present invention;
fig. 5 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention;
fig. 6 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention;
fig. 7 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention;
fig. 8 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention;
fig. 9 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The method and the device of the embodiment of the invention can be realized by a base station control node or a server for collecting information from the base station control node, so that the same-frequency adjacent cell close to the user equipment can be determined, and further, the same-frequency adjacent cell determined by the method and the device of the embodiment can be used for switching or reselecting a target cell and can also be used for collecting measurement information of the user equipment, and the embodiment of the invention does not limit the method and the device. The following embodiments are described by taking the base station control node as an example.
Fig. 2 is a flowchart of a method for selecting a neighboring cell with the same frequency according to an embodiment of the present invention, which can be used in a scenario where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, where as shown in the figure, the method may include:
step 201: and the base station control node acquires the information of each adjacent cell using the first frequency point, wherein the information of each adjacent cell comprises the position information of each adjacent cell.
Herein, a plurality of cells geographically adjacent to a serving cell may be referred to as a neighbor cell.
The first frequency point can be obtained by the following method:
a base station control node receives a measurement report sent by user equipment, wherein the measurement report comprises frequency points of a plurality of adjacent cells detected by the user equipment and measurement information of the plurality of adjacent cells;
and the base station control node selects a frequency point of one adjacent cell from the frequency points of the plurality of adjacent cells of the measurement report as the first frequency point.
In other words, the first frequency point may be selected in different manners in different scenarios, which is not limited in this embodiment of the present invention. For example, when a handover target cell is selected, the base station control node may select a frequency point used by a neighboring cell whose measurement information satisfies a handover condition; or, for example, when the user equipment acquires measurement information, the base station control node may arbitrarily select a frequency point of a neighboring cell.
If more than one adjacent cell of the first frequency point is used, that is, at least two adjacent cells of the serving cell of the user equipment use the first frequency point, at least two adjacent cells using the first frequency point can be called as the same-frequency adjacent cells, the base station control node can obtain information of the same-frequency adjacent cells using the first frequency point, for example, position information of each same-frequency adjacent cell, according to the selected first frequency point, and further can select among the same-frequency adjacent cells using the first frequency point according to each step of the embodiment of the present invention.
It should be noted that the location information here may be information of a geographical location.
Step 202: and the base station control node acquires the position information of the user equipment.
The location information of the user equipment may be obtained in various ways, which is not limited in the embodiment of the present invention.
For example, the location information of the ue may be obtained according to measurement information of a single base station, such as obtaining the location information of the ue according to an arrival azimuth and a distance from the antenna of the ue; or,
for example, the location information of the ue may also be obtained according to the signal measurement value, and if the signal strength of the ue is different when the ue is at different locations from the base station, the location of the ue may be determined according to the signal strength of the ue; or,
for example, the location information of the user equipment may be obtained in other manners, such as assisting satellite positioning and the like, so that the base station control node can obtain the location information of the user equipment.
It can be understood that, the above manner of obtaining the location information of the ue may specifically refer to the method in the prior art, and the embodiments of the present invention are not necessarily listed.
Step 203: and the base station control node obtains the distance between the user equipment and each adjacent cell using the first frequency point according to the position information of each adjacent cell using the first frequency point, which is obtained in the step 201, and the position information of the user equipment, which is obtained in the step 202.
Step 204: and the base station control node determines a neighboring cell using the first frequency point close to the user equipment as a cell corresponding to the first frequency point according to the distance obtained in the step 203.
Here, a neighboring cell using the first frequency point, which is close to the user equipment, is a relative concept, and means that the neighboring cell is closer to the user equipment, for example, the neighboring cell may be the neighboring cell with the shortest distance from the user equipment, or may also be the neighboring cell with the distance smaller than or equal to a predetermined distance threshold, or may also be any neighboring cell except the neighboring cell with the farthest distance, and the like.
Specifically, in this embodiment, the neighboring cell close to the user equipment may be determined in various ways.
For example, the neighboring cell with the shortest distance among the neighboring cells may be the cell corresponding to the first frequency point.
If only one adjacent cell with the shortest distance exists, the adjacent cell can be used as a cell corresponding to the first frequency point;
if the distance between the adjacent cells is shorter than the distance between the adjacent cells, the base station control node can select any adjacent cell with the shortest distance, and can further establish connection with each adjacent cell with the shortest distance, receive the uplink level measurement result of each adjacent cell with the connection established, and determine the cell corresponding to the first frequency point by combining the uplink level measurement result, for example, the adjacent cell with the highest uplink level is taken as the cell corresponding to the first frequency point.
For example, a neighboring cell whose distance is less than or equal to the distance threshold value among the neighboring cells may be used as the cell corresponding to the first frequency point.
It should be noted that the information of the neighboring cell, which is acquired by the base station control node, may further include a distance threshold, where the distance threshold may be set according to actual needs, and this embodiment does not limit this.
If only one adjacent cell with the distance less than or equal to the distance threshold is available, the adjacent cell can be used as the cell corresponding to the first frequency point;
if more than one adjacent cell with the distance less than or equal to the distance threshold is available, the base station control node may arbitrarily select one adjacent cell with the distance less than or equal to the distance threshold as the cell corresponding to the first frequency point. The method may further establish a connection with each neighboring cell whose distance is less than or equal to a distance threshold, receive an uplink level measurement result of each neighboring cell for which the connection is established, and determine a cell corresponding to the first frequency point in combination with the uplink level measurement result, for example, use a neighboring cell with a highest uplink level as a cell corresponding to the first frequency point;
if the distances between the user equipment and the adjacent cells using the first frequency point are larger than the distance threshold, the base station control node can randomly select one adjacent cell, and can further establish connection with the adjacent cells using the first frequency point, receive the uplink level measurement result of the adjacent cells establishing connection, and determine the cell corresponding to the first frequency point by combining the uplink level measurement result, for example, the adjacent cell with the highest uplink level is taken as the cell corresponding to the first frequency point.
By the method of the embodiment of the invention, when the service cell of the user equipment has at least two adjacent cells using the first frequency point, the base station control node determines an adjacent cell close to the user equipment as a cell corresponding to the first frequency point according to the distance between the user equipment and each same-frequency adjacent cell, thereby selecting a correct adjacent cell. Further, when more than one adjacent cell close to the user equipment is available, the selection can be performed through the uplink level measurement result, so that one adjacent cell with good signal quality can be selected.
Further, the determined cell corresponding to the first frequency point may be used as a candidate cell for handover, so as to provide a handover success rate.
Fig. 3 is a flowchart of a method for selecting co-frequency neighboring cells according to another embodiment of the present invention, which can be used in a scenario where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, where as shown in the figure, the method includes:
step 301: and the base station control node establishes connection with each adjacent cell by using the first frequency point.
The obtaining manner of the first frequency point and the obtaining manner of each neighboring cell using the first frequency point may refer to the related description in step 201 of the foregoing method embodiment, and details are not repeated here.
Step 302: and the base station control node receives the uplink level measurement result of each adjacent cell for establishing the connection.
Step 303: and the base station control node selects a cell with the highest uplink level from the uplink level measurement results of the neighboring cells received in step 302 as the cell corresponding to the first frequency point.
If there are multiple cells with the highest uplink levels, one cell with the highest uplink level can be selected as the cell corresponding to the frequency point.
By the method of the embodiment of the invention, the base station control node determines the adjacent cell close to the user equipment at least according to the uplink level measurement result of each same-frequency adjacent cell, so that when more than one same-frequency adjacent cell exists in the service cell, the same-frequency adjacent cell with good signal quality is selected as the cell corresponding to the frequency point measured by the user equipment, and a correct adjacent cell can be selected as the cell corresponding to the first frequency point.
It should be noted that, the above embodiments are described by taking a base station control node as an example, and when a server for acquiring information from the base station control node implements the method for selecting the adjacent cells with the same frequency in the embodiments of the present invention, similar to the above process, the difference is that the server acquires a measurement report of the user equipment from the base station control node in step 201 and step 202, and the server instructs the base station control node to complete connection establishment with multiple cells and acquires an uplink level establishment result of each cell for establishing connection from the base station control node in step 204, step 301, step 302, and step 303. Further, the server may record the determined cell corresponding to the first frequency point and the measurement information of the cell for network planning or optimization.
It should be further noted that, in the foregoing embodiment, the distance and the signal strength for determining the cell corresponding to the first frequency point are both related to the location of the user equipment.
Another embodiment of the present invention provides a method for selecting a neighboring cell with the same frequency, where the method can be implemented by a user equipment, and as shown in fig. 4, the method can be used in a scenario where a serving cell of the user equipment has at least two neighboring cells using a first frequency point, and the method can include:
401: the user equipment sends a measurement report message to the base station control node, wherein the measurement report comprises the frequency points of a plurality of adjacent cells detected by the user equipment and the measurement information of the plurality of adjacent cells.
The frequency points of the plurality of adjacent cells detected by the user equipment comprise a first frequency point, and the first frequency point is selected from the frequency points of the plurality of adjacent cells of the measurement report by a base station control node or a server for collecting information from the base station control node.
402: and the switching or reselecting message received by the user equipment comprises a neighboring cell using the first frequency point.
The message for Handover or reselection may be a Handover Command (Handover Command) message, a Cell Change Command (Cell Change Order) message, or a channel release (ChannelRelease) message.
Wherein, a neighboring cell using the first frequency point is an intra-frequency neighboring cell using the first frequency point selected by a base station control node or a server collecting information from the base station control node according to the method described in the foregoing embodiment of the method in fig. 2 or fig. 3, and as already described in the embodiment in fig. 2 or fig. 3, details are not repeated here.
By the method of the embodiment of the invention, the target cell switched by the user equipment is the same-frequency adjacent cell which uses the first frequency point and is selected by the base station control node or the server which collects information from the base station control node according to the method of the embodiment of the method in the figure 2 or the figure 3, so that the success rate of switching the user equipment can be improved.
Fig. 5 is a structural diagram of a device for selecting an intra-frequency neighboring cell according to an embodiment of the present invention, which can be used in a scenario where a serving cell of a user equipment has at least two cells using a first frequency point, as shown in the figure, the device for selecting an intra-frequency neighboring cell includes a cell information management unit 501, a location detection unit 502, a distance determination unit 503, and a first processing unit 504, where:
a cell information management unit 501, configured to acquire information of each neighboring cell using the first frequency point, where the information of each neighboring cell includes location information of each neighboring cell;
a location detection unit 502 for acquiring location information of the user equipment;
a distance determining unit 503, configured to obtain, according to the location information of each neighboring cell using the first frequency point, obtained by the cell information managing unit 501, and the location information of the user equipment, obtained by the location detecting unit 502, a distance between the user equipment and each neighboring cell using the first frequency point;
a first processing unit 504, configured to determine, according to the distance between the user equipment and each neighboring cell using the first frequency point, that is obtained by the distance determining unit 503, a neighboring cell close to the user equipment as a cell corresponding to the first frequency point.
The first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
If the cell information management unit 501 obtains that there are more than one neighboring cells using the first frequency point, and at this time, at least two neighboring cells of the serving cell of the user equipment use the first frequency point, the first processing unit 504 determines, according to the distance between the user equipment and each neighboring cell using the first frequency point obtained by the distance determination unit 503, one neighboring cell close to the user equipment as a cell corresponding to the first frequency point and selects a cell corresponding to the first frequency point.
Further, the first processing unit 504 may include a first processing subunit, configured to select a neighboring cell with the shortest distance to the user equipment, and determine the neighboring cell with the shortest distance as the cell corresponding to the first frequency point.
If only one adjacent cell with the shortest distance exists, the first processing subunit determines the adjacent cell as a cell corresponding to the first frequency point;
if more than one adjacent cell with the shortest distance exists, the first processing subunit may select any adjacent cell with the shortest distance, and may also further establish a connection with each adjacent cell with the shortest distance to the user equipment, receive an uplink level measurement result of each adjacent cell establishing the connection, and select an adjacent cell with the highest uplink level as the cell corresponding to the first frequency point.
In addition, the first processing unit 504 may also include a second processing subunit, configured to select a neighboring cell that is less than or equal to the distance threshold from the user equipment, and determine the neighboring cell whose distance is less than or equal to the distance threshold as the cell corresponding to the first frequency point.
If only one adjacent cell with the distance less than or equal to the distance threshold value exists, the second processing subunit determines the adjacent cell as a cell corresponding to the first frequency point;
if more than one adjacent cell with the distance less than or equal to the distance threshold is available, the second processing subunit may optionally select one adjacent cell with the distance less than or equal to the distance threshold, and may further establish a connection with each adjacent cell with the distance less than or equal to the distance threshold, receive the uplink level measurement result of each adjacent cell with the connection established, and select one adjacent cell with the highest uplink level as the cell corresponding to the first frequency point;
if the distances between the user equipment and the adjacent cells using the first frequency point are larger than the distance threshold, the second processing subunit can randomly select one adjacent cell, and can further establish a connection with the adjacent cells, receive the uplink level measurement result of the adjacent cells establishing the connection, and select the adjacent cell with the highest uplink level as the cell corresponding to the first frequency point.
The device of the embodiment of the invention determines a neighboring cell close to the user equipment as a cell corresponding to the first frequency point at least according to the distance between the user equipment and each same-frequency neighboring cell, thereby selecting a correct neighboring cell. Further, when more than one adjacent cell close to the user equipment is available, the selection can be performed through the uplink level measurement result, so that one adjacent cell with good signal quality can be selected.
Fig. 6 is a structural diagram of a device for selecting a same-frequency neighboring cell according to an embodiment of the present invention, which can be used in a scenario where a serving cell of a user equipment has at least two cells using a first frequency point, where as shown in the figure, the device for selecting a same-frequency neighboring cell includes: a connection management unit 601, a receiving unit 602, and a determining unit 603, wherein:
a connection management unit 601, configured to establish a connection with each neighboring cell using the first frequency point;
a receiving unit 602, configured to receive uplink level measurement results of each neighboring cell that establishes the connection;
a determining unit 603, configured to select a cell with the highest uplink level in each neighboring cell received by the receiving unit as a cell corresponding to the first frequency point.
The device of the embodiment of the invention at least determines the adjacent cells measured by the user equipment according to the uplink level measurement result of each same-frequency adjacent cell, thereby selecting the same-frequency adjacent cell with good signal quality as the cell corresponding to the frequency point measured by the user equipment when more than one same-frequency adjacent cell exists in the service cell, and selecting a correct adjacent cell as the cell corresponding to the first frequency point.
Fig. 7 is a structural diagram of a device for selecting a same-frequency neighboring cell according to an embodiment of the present invention, where a serving cell that can be used for a user equipment has at least two neighboring cells using a first frequency point, and as shown in the drawing, the device for selecting a same-frequency neighboring cell includes: a first memory 701 and a first processor 702, the first memory 701 being coupled to at least one of the first processors 702, wherein:
a first memory 701, configured to store information of a neighboring cell, where the information of the neighboring cell at least includes frequency point and location information of the neighboring cell;
a first processor 702, configured to obtain, from the neighbor cell information stored in the memory 701, location information of each neighbor cell using the first frequency point, obtain location information of the user equipment, obtain, according to the location information of the user equipment and the location information of each neighbor cell using the first frequency point, a distance between the user equipment and each neighbor cell using the first frequency point, and determine, according to the distance between the user equipment and each neighbor cell using the first frequency point, a neighbor cell using the first frequency point that is close to the user equipment as a cell corresponding to the first frequency point.
Each component of the device for selecting a same-frequency neighboring cell in the embodiment of the present invention can be used to implement the functions of each step of the method for selecting a same-frequency neighboring cell in the foregoing related method embodiments, and since each step has been described in detail in the foregoing method embodiments, it is not described here any more.
Fig. 8 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention, which is applicable to a scenario where a serving cell of a user equipment has at least two neighboring cells using a first frequency point, where as shown in the figure, the device for selecting a neighboring cell with the same frequency includes: a second memory 801 and a second processor 802, the second memory 801 being connected to at least one second processor 802, wherein:
a second memory 801, configured to store neighbor cell information, where the neighbor cell information at least includes a frequency point of a cell;
a second processor 802, configured to establish a connection with multiple neighboring cells using the first frequency point, respectively, receive an uplink level measurement result of each neighboring cell that establishes the connection, and select a cell with the highest uplink level as a cell corresponding to the first frequency point.
Each component of the device for selecting a same-frequency neighboring cell in the embodiment of the present invention can be used to implement the functions of each step of the method for selecting a same-frequency neighboring cell in the foregoing related method embodiments, and since each step has already been described in the foregoing method embodiments, it is not described here any further.
It can be understood that the selection device of the same-frequency neighboring cells in the foregoing embodiments may be included in the base station control node, or may be included in a server that collects information from the base station control node, which is not limited in this embodiment of the present invention.
Fig. 9 is a structural diagram of a device for selecting a neighboring cell with the same frequency according to another embodiment of the present invention, where the device may be included in a user equipment, and as shown in fig. 9, a scenario where a serving cell that can be used for the user equipment has at least two neighboring cells using a first frequency point includes: a transmitter 901 and a receiver 902, wherein:
a transmitter 901, configured to send a measurement report, where the measurement report includes frequency points of multiple neighboring cells detected by a user equipment and measurement information of the multiple neighboring cells.
The frequency points of the plurality of adjacent cells detected by the user equipment comprise a first frequency point, and the first frequency point is selected from the frequency points of the plurality of adjacent cells of the measurement report by a base station control node or a server for collecting information from the base station control node.
A receiver 902, configured to receive a handover or reselection message, where the handover or reselection message includes a neighboring cell using the first frequency point.
The message for Handover or reselection may be a Handover Command (Handover Command) message, a Cell Change Command (Cell Change Order) message, or a channel release (ChannelRelease) message.
Wherein, a neighboring cell using the first frequency point is determined by the base station control node or a server collecting information from the base station control node according to the method described in the foregoing method embodiment of fig. 2 or fig. 3.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy Disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A method for selecting adjacent regions with same frequency is characterized in that when at least two adjacent regions of a service cell of user equipment use a first frequency point, the method comprises the following steps:
acquiring information of each adjacent cell using the first frequency point, wherein the information of each adjacent cell comprises position information of each adjacent cell;
acquiring the position information of the user equipment;
obtaining the distance between the user equipment and each adjacent cell according to the position information of the user equipment and the position information of each adjacent cell;
determining a neighboring cell which is close to the user equipment and uses the first frequency point as a cell corresponding to the first frequency point according to the distance between the user equipment and each neighboring cell;
the first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
2. The method of claim 1, wherein the determining, according to the distance between the ue and each of the neighboring cells, a neighboring cell close to the ue as the cell corresponding to the first frequency point comprises: and taking the adjacent cell with the shortest distance with the user equipment as the cell corresponding to the first frequency point.
3. The method according to claim 2, wherein the selecting the neighboring cell with the shortest distance to the user equipment as the cell corresponding to the first frequency point comprises:
and if more than one adjacent cell with the shortest distance to the user equipment exists and connection is established between the adjacent cell with the shortest distance and each adjacent cell, receiving an uplink level measurement result of each adjacent cell establishing connection, and selecting a cell with the highest uplink level as a cell corresponding to the first frequency point.
4. The method of claim 1, wherein the determining, according to the distance between the ue and each of the neighboring cells, a neighboring cell close to the ue as the cell corresponding to the first frequency point comprises:
selecting a neighboring cell with a distance less than or equal to a distance threshold value with the user equipment as a cell corresponding to the first frequency point;
and the information of each neighboring cell comprises a distance threshold value of each neighboring cell.
5. The method of claim 4, wherein the selecting the neighbor cell having the distance from the user equipment smaller than or equal to the distance threshold comprises:
if more than one adjacent cell with the distance smaller than or equal to the distance threshold value between the adjacent cell and the user equipment exists and the connection is established between the adjacent cell with the distance smaller than or equal to the distance threshold value and each adjacent cell with the distance smaller than or equal to the distance threshold value, receiving an uplink level measurement result of the adjacent cell with the connection established, and selecting a cell with the highest uplink level as a cell corresponding to the first frequency point; or,
and if the distances between the user equipment and each adjacent cell using the first frequency point are larger than the distance threshold, establishing connection with each adjacent cell using the first frequency point, receiving an uplink level measurement result of the adjacent cell establishing connection, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point.
6. The method according to any one of claims 1 to 5, wherein the obtaining the location information of the UE comprises:
acquiring the position information of the user equipment according to the arrival azimuth angle of the user equipment and the distance between the user equipment and the opposite antenna by the single base station; or,
acquiring the position information of the user equipment according to the signal intensity of the user equipment at different positions away from the base station; or,
and acquiring the position information of the user equipment according to a global positioning system and an auxiliary satellite positioning method.
7. The method according to any of claims 1 to 5, wherein the cell corresponding to the first frequency point is used as a candidate cell for handover or reselection.
8. A method for selecting adjacent regions with the same frequency is characterized in that when at least two adjacent regions of a service cell of user equipment use a first frequency point, the method comprises the following steps:
establishing connection by using each adjacent region of the first frequency point;
receiving the uplink level measurement result of each neighboring cell;
selecting a cell with the highest uplink level in each neighboring cell as a cell corresponding to the first frequency point;
the first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
9. The method according to claim 8, wherein the cell corresponding to the first frequency point is used as a candidate cell for handover or reselection.
10. A method for selecting adjacent regions with the same frequency is characterized in that when at least two adjacent regions of a service cell of user equipment use a first frequency point, the method comprises the following steps:
the user equipment sends a measurement report, wherein the measurement report comprises the frequency points of a plurality of adjacent cells detected by the user equipment and the measurement information of the plurality of adjacent cells;
the frequency points of the plurality of adjacent cells detected by the user equipment comprise the first frequency point, and the first frequency point is selected from the frequency points of the plurality of adjacent cells of the measurement report by a base station control node or a server for collecting information from the base station control node;
the user equipment receives a switching or reselection message, wherein the switching or reselection message comprises a neighboring cell using the first frequency point;
wherein, the adjacent cell using the first frequency point is determined by the base station control node or a server collecting information from the base station control node according to the method of any one of claims 1 to 7 or 8 to 9.
11. A device for selecting adjacent cells with same frequency is characterized in that when at least two adjacent cells of a service cell of user equipment use a first frequency point, the device comprises: the system comprises a cell information management unit, a position detection unit, a distance determination unit and a first processing unit; wherein,
the cell information management unit is used for acquiring information of each neighboring cell using the first frequency point, wherein the information of each neighboring cell comprises position information of each neighboring cell;
the position detection unit is used for acquiring the position information of the user equipment;
the distance determining unit is configured to obtain a distance between the user equipment and each neighboring cell using the first frequency point according to the location information of each neighboring cell using the first frequency point, which is obtained by the cell information management unit, and the location information of the user equipment, which is obtained by the location detecting unit;
the first processing unit determines a neighboring cell close to the user equipment as a cell corresponding to the first frequency point according to the distance between the user equipment and each neighboring cell using the first frequency point, which is obtained by the distance determining unit;
the first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
12. The apparatus of claim 11, wherein the first processing unit comprises: and the first processing subunit is used for selecting the adjacent cell with the shortest distance to the user equipment as the cell corresponding to the first frequency point.
13. The apparatus according to claim 12, wherein the first processing subunit is specifically configured to:
and if more than one adjacent cell with the shortest distance to the user equipment exists, establishing connection with each adjacent cell with the shortest distance, receiving an uplink level measurement result of each adjacent cell establishing connection, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point.
14. The apparatus of claim 11, wherein the first processing unit comprises: the second processing subunit is used for selecting a neighboring cell of which the distance to the user equipment is less than or equal to a distance threshold;
and the information of each neighboring cell comprises a distance threshold value of each neighboring cell.
15. The apparatus of claim 14, wherein the second processing subunit is specifically configured to:
if more than one adjacent cell with the distance smaller than or equal to the distance threshold value between the adjacent cell and the user equipment exists and the connection is established between the adjacent cell with the distance smaller than or equal to the distance threshold value and each adjacent cell with the distance smaller than or equal to the distance threshold value, receiving the uplink level measurement result of each adjacent cell with the connection established, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point; or,
and if the distance between each adjacent cell using the first frequency point and the user equipment is larger than a distance threshold value, establishing connection with each adjacent cell using the first frequency point, receiving an uplink level measurement result of each adjacent cell establishing connection, and selecting a cell with the highest uplink level as the cell corresponding to the first frequency point.
16. A device for selecting adjacent cells with same frequency is characterized in that when at least two adjacent cells of a service cell of user equipment use a first frequency point, the device comprises: a connection management unit, a receiving unit and a determining unit; wherein,
the connection management unit is used for establishing connection with each adjacent cell using the first frequency point;
the receiving unit is configured to receive an uplink level measurement result of each neighboring cell to which the connection management unit establishes a connection;
the determining unit is configured to select a cell with the highest uplink level in each neighboring cell received by the receiving unit as a cell corresponding to the first frequency point;
the first frequency point is selected from the frequency points of a plurality of adjacent areas in the measurement report of the user equipment.
17. A base station control node, characterized in that it comprises the apparatus of any of claims 11 to 16.
18. A server for collecting information from a base station control node, the server comprising the apparatus of any one of claims 11 to 16.
19. A user device, comprising: a transmitter and a receiver; wherein,
a transmitter, configured to send a measurement report, where the measurement report includes frequency points of multiple neighboring cells and measurement information of the multiple neighboring cells, where the frequency points are detected by user equipment;
the frequency points of the plurality of adjacent cells detected by the user equipment comprise first frequency points, and the first frequency points are selected from the frequency points of the plurality of adjacent cells of the measurement report by a base station control node or a server for collecting information from the base station control node;
a receiver, configured to receive a handover or reselection message, where the handover or reselection message includes a neighboring cell using the first frequency point;
wherein, the adjacent cell using the first frequency point is determined by the base station control node or a server collecting information from the base station control node according to the method of any one of claims 1 to 7 or 8 to 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/081795 WO2014043904A1 (en) | 2012-09-22 | 2012-09-22 | Method and device for selecting neighbor cell with same frequency |
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| CN103168492A true CN103168492A (en) | 2013-06-19 |
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| CN2012800019295A Pending CN103168492A (en) | 2012-09-22 | 2012-09-22 | Same frequency adjacent region selecting method and device |
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| WO (1) | WO2014043904A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107690818A (en) * | 2015-06-26 | 2018-02-13 | 英特尔公司 | Location-based wireless device presents and connection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859754A (en) * | 2005-12-05 | 2006-11-08 | 华为技术有限公司 | Blind switching method in cell load control |
| CN1859787A (en) * | 2006-03-28 | 2006-11-08 | 华为技术有限公司 | Transmitting method for station address selecting down diversification |
| CN102487538A (en) * | 2010-12-02 | 2012-06-06 | 无锡物联网产业研究院 | Cell switching method, device and system based on single frequency network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047512A1 (en) * | 2005-08-26 | 2007-03-01 | Interdigital Technology Corporation | Wireless communication method and apparatus for selecting a serving cell and node-b in an sc-fdma system |
-
2012
- 2012-09-22 WO PCT/CN2012/081795 patent/WO2014043904A1/en active Application Filing
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859754A (en) * | 2005-12-05 | 2006-11-08 | 华为技术有限公司 | Blind switching method in cell load control |
| CN1859787A (en) * | 2006-03-28 | 2006-11-08 | 华为技术有限公司 | Transmitting method for station address selecting down diversification |
| CN102487538A (en) * | 2010-12-02 | 2012-06-06 | 无锡物联网产业研究院 | Cell switching method, device and system based on single frequency network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107690818A (en) * | 2015-06-26 | 2018-02-13 | 英特尔公司 | Location-based wireless device presents and connection |
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