CN103428776B - A kind of method and apparatus of cell management - Google Patents

Abstract

The invention discloses a cell management method and device, relates to the field of communication technology, and solves the problem of severe uplink and downlink interference between cells caused by the uplink and downlink ratios configured by different cells according to their respective service requirements. The technical solution of the present invention is: group the cells to obtain a target group list; receive the uplink and downlink ratios sent by the cells in the target group list; determine the target according to the uplink and downlink ratios of each cell in the target group list Uplink-downlink configuration, the target uplink-downlink configuration is used to provide each cell in the target group list for uplink-downlink service transmission. The embodiment of the present invention is applicable to the process of cell management.

Description

Method and device for community management

technical field

The present invention relates to the field of communication technology, in particular to a cell management method and device.

Background technique

The Long Term Evolution (LTE) system supports Time Division Duplexing (TDD, Time DivisionDuplexing), that is, uplink (UL, Uplink) and downlink (DL, Downlink) use different time slots of the same frequency. The LTE TDD system can dynamically or semi-statically configure the cell uplink and downlink ratio according to different service types to meet different uplink and downlink asymmetric service requirements. With the continuous development and change of wireless access network requirements, the interference scenarios between cells are becoming more and more complex. If the cell management is not good, it will cause serious interference between cells or cracks in cell coverage.

The inventor found through research that, in the case of a large number of cells, the cells configure the uplink and downlink ratios according to their own uplink and downlink service requirements, so that different cells will configure different uplink and downlink ratios, which will cause inter-cell Serious uplink and downlink interference, if the transmission power of the cell site is reduced to avoid such interference, it will bring coverage gaps between cells.

Contents of the invention

Embodiments of the present invention provide a method and device for cell management, which can effectively avoid uplink and downlink interference conflicts between cells without generating cell coverage cracks.

To achieve the above object, the present invention adopts the following technical solutions:

A method for community management, comprising:

Grouping the cells to obtain a list of target groups;

receiving the uplink and downlink ratios sent by the cells in the target group list;

The target uplink and downlink ratio is determined according to the uplink and downlink ratio of each cell in the target group list, and the target uplink and downlink ratio is used to provide each cell in the target group list for uplink and downlink service transmission.

A device for community management, comprising:

A grouping unit, configured to group cells to obtain a target group list;

a receiving unit, configured to receive the uplink and downlink ratios sent by the cells in the target group list;

A processing unit, configured to determine a target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target grouping list, and the target uplink and downlink ratio is used to provide each cell in the target grouping list for uplink and downlink business transmission.

A method and device for cell management provided by the embodiments of the present invention obtain a target group list by grouping cells, and determine the target uplink and downlink ratio by receiving the uplink and downlink ratios sent by the cells in the target group list , the target uplink-downlink ratio is used to provide each cell in the target group list for uplink-downlink service transmission. The present invention solves the problem of severe uplink and downlink interference between cells caused by the uplink and downlink ratios configured by different cells according to their respective service requirements in the prior art, and realizes the premise of not generating cell coverage cracks. Effectively avoid uplink and downlink interference conflicts between cells.

Description of drawings

FIG. 1 is a flow chart of a method for cell management provided by Embodiment 1 of the present invention;

FIG. 2 is a structural diagram of a cell management device provided in Embodiment 1 of the present invention;

FIG. 3 is an example diagram of a base station of a CCE managed cell provided by Embodiment 2 of the present invention;

FIG. 4 is a flow chart of a cell management method provided in Embodiment 2 of the present invention;

FIG. 5 is an example diagram for obtaining the target group list provided by Embodiment 2 of the present invention;

FIG. 6 is a structural diagram of a grouping unit in the device when the device provided by Embodiment 2 of the present invention is a CCE;

Fig. 7 is a device structure diagram in which the device provided by Embodiment 2 of the present invention is a CCE;

FIG. 8 is an example diagram of another cell management method provided by Embodiment 2 of the present invention;

FIG. 9 is a flow chart of another cell management method provided in Embodiment 2 of the present invention;

FIG. 10 is an example diagram of broadcasting a message in a broadcast multicast subframe or a special subframe provided by Embodiment 2 of the present invention;

FIG. 11 is a structural diagram of the grouping unit in the device provided by Embodiment 2 of the present invention;

FIG. 12 is a device structure diagram when the device provided in Embodiment 2 of the present invention is a base station.

detailed description

A cell management method and device according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

A method for cell management provided by an embodiment of the present invention, as shown in FIG. 1 , the method includes:

101. Group the cells to obtain a target group list;

102. Receive the uplink and downlink ratios sent by the cells in the target group list;

103. Determine a target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target group list, and the target uplink and downlink ratio is used to provide each cell in the target group list for uplink and downlink service transmission .

According to a cell management method provided by an embodiment of the present invention, a target group list is obtained by grouping cells, and the target uplink and downlink ratio is determined by receiving the uplink and downlink ratios sent by the cells in the target group list. The target uplink-downlink ratio is used to provide each cell in the target group list for uplink-downlink service transmission. The embodiment of the present invention solves the problem of serious uplink and downlink interference between cells caused by the uplink and downlink ratios configured by different cells through their respective service requirements in the prior art, and realizes the premise that no cell coverage cracks are generated. In this case, the interfering cells are grouped, and the cells in the same group are configured with the same uplink and downlink ratio, which effectively avoids uplink and downlink interference conflicts between cells.

Correspondingly, an apparatus for cell management provided by an embodiment of the present invention, as shown in FIG. 2 , includes a grouping unit 11 , a receiving unit 12 and a processing unit 13 .

Wherein, the grouping unit 11 is used to group the cells to obtain a target group list;

A receiving unit 12, configured to receive the uplink and downlink ratios sent by the cells in the target group list;

The processing unit 13 is configured to determine a target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target grouping list, and the target uplink and downlink ratio is used to provide each cell in the target grouping list for Uplink and downlink service transmission.

A cell management device provided by an embodiment of the present invention uses a grouping unit to group cells to obtain a target group list, and the receiving unit receives the uplink and downlink ratios sent by the cells in the target group list, and the processing unit according to the The uplink-downlink configuration of each cell in the target grouping list determines the target uplink-downlink configuration, and the target uplink-downlink configuration is used to provide each cell in the target grouping list for uplink-downlink service transmission. The embodiment of the present invention solves the problem of serious uplink and downlink interference between cells caused by the uplink and downlink ratios configured by different cells through their respective service requirements in the prior art, and realizes the premise that no cell coverage cracks are generated. In this case, the interfering cells are grouped, and the cells in the same group are configured with the same uplink and downlink ratio, which effectively avoids uplink and downlink interference conflicts between cells.

Example 2

An embodiment of the present invention provides a method for cell management. As shown in FIG. 3 , a CCE (Central Control Equipment, centralized management device) performs centralized management on base stations of multiple cells, and the interface between the CCE and the base station is an air interface, S1 port, Ethernet port or optical port, as shown in Figure 4, the specific steps of the method are as follows:

The cells are grouped by the CCEs, and a target group list is obtained.

201. The CCE selects a cell from a reference cell list as a reference cell, and the reference cell list includes cells managed by the CCE.

For example, the cells managed by the CCE include cell 1, cell 2, cell 3, cell 4, and cell 5, and cell 1 is selected as a reference cell.

202. The CCE receives an interfering cell list sent by the base station of the reference cell, where the interfering cell list includes cells that interfere with the reference cell.

Wherein, the list of interfering cells is determined by the reference cell according to the interference judgment threshold of the reference cell and the signal-to-interference ratio generated by signals from neighboring cells. The interference judgment threshold is pre-configured by the user for each cell managed by the CCE, and each interference judgment threshold is sent to the corresponding cell through the CCE, so that the corresponding cell , to determine the cell that interferes with itself, including:

The base station of the reference cell receives the common reference signal sent by the base station of the adjacent cell, and calculates a first signal-to-interference ratio according to the common reference signal, when the first signal-to-interference ratio is smaller than the interference decision threshold of the reference cell , determining that the neighboring cell is a cell that interferes with the reference cell; or,

The base station of the reference cell receives a reference signal sent by a user in an adjacent cell, and calculates a second signal-to-interference ratio according to the reference signal, and when the second signal-to-interference ratio is smaller than the interference decision threshold of the reference cell , determining that the neighboring cell is a cell that interferes with the reference cell.

For example, when the reference cell is cell 1, the base station of cell 1 receives the common reference signal sent by the base station of cell 2, and the common reference signal sent by the base station of cell 2 is combined with the received common reference signal sent by the base station of cell 2. A signal ratio to obtain a first signal-to-interference ratio, and when the first signal-to-interference ratio is less than the interference judgment threshold of the cell 1, determine that the cell 2 is a cell that interferes with the cell 1;

Alternatively, the base station of the cell 1 receives the reference signal sent by the user in the cell 2, and obtains the second signal-to-interference ratio through the ratio of the transmit power of the base station of the cell 1 to the received reference signal sent by the user in the cell 2 , when the second signal-to-interference ratio is smaller than the interference decision threshold of the cell 1, determine that the cell 2 is a cell that interferes with the cell 1.

For the above two methods for determining the cell that interferes with the reference cell, one method may be selected in the present invention, or both methods may be used. When two methods are used, as long as the ratio obtained by one of the methods is smaller than the interference judgment threshold of the reference cell, the determined adjacent cell is a cell that interferes with the reference cell.

Wherein, the CCE receives the interfering cell list sent by the reference cell in a broadcast multicast subframe or a special subframe. The reference cell may transmit the interference cell list to the CCE by using the broadcast multicast subframe through an air interface. The special subframe is a type of subframe defined in the TDD-LTE standard when a downlink subframe is switched to an uplink subframe, and the reference cell can carry a list of interfering cells in the special subframe to the CCE sent to save power consumption.

203. The CCE judges whether the interfering cell list includes a target cell, and the target cell is a cell outside the preset temporary grouping list and the reference cell list.

Initially, the reference cell list includes cell 1, and the preset temporary grouping list is empty.

204. When the target cell is included in the interference cell list, the CCE adds the target cell to the reference cell list, deletes the reference cell from the reference cell list, and deletes the reference cell The cell is added to the preset temporary grouping list;

205. When the target cell is not included in the interfering cell list, the CCE deletes the reference cell from the reference cell list, and adds the reference cell to the preset temporary grouping list.

When the reference cell is cell 1, cell 2 is included in the obtained list of interfering cells, and it is first determined whether cell 2 is a cell outside the preset temporary grouping list and the reference cell list, because At this time, the reference cell list includes cell 1, and the preset temporary grouping list is empty, so the cell 2 is the target cell, and cell 2 is added to the reference cell list, and the cell 1 is removed from the target cell. Delete from the reference cell list, add the cell 1 to the preset temporary grouping list, as shown in Figure 5, after receiving the interfering cell list of the cell 1, the reference cell list includes cell 2 , cell 1 is included in the preset temporary grouping list.

206. The CCE judges whether the reference cell list is empty;

207. When the reference cell list is not empty, re-select a cell from the reference cell list as a reference cell.

The CCE judges that cell 2 is included in the reference cell list, and re-selects cell 2 from the reference cell list as a reference cell, and executes the above steps 204-208. As shown in Figure 5, the interfering cell list of cell 2 includes cells 1, 3, and 4. After comparing with the reference cell list and the preset temporary grouping list, the target cells are obtained as cells 3, 4, and the cell 3, 4 are added to the reference cell list, the cell 2 is deleted from the reference cell list, and added to the preset temporary grouping list, then the reference cell list includes cells 3, 4, The preset temporary grouping list includes cells 1 and 2, and so on. As long as the reference cell list is not empty, select a cell from the reference cell list as a reference cell again.

208. When the reference cell list is empty, end the grouping process, and the obtained preset temporary grouping list is the target grouping list.

As shown in Figure 5, after receiving the interfering cell list of cell 5, the updated reference cell list is empty, and the grouping process ends, and the obtained preset temporary grouping list is the target grouping list, and the target grouping list Including cells 1, 2, 3, 4, and 5.

209. Receive the uplink and downlink ratios sent by the cells in the target group list.

The CCE receives the uplink and downlink ratios sent by the base stations of the cells in the target group list through broadcast multicast subframes or special subframes.

210. Determine a target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target grouping list, and the target uplink and downlink ratio is used to provide each cell in the target grouping list to perform uplink and downlink services.

According to the uplink and downlink configurations of each cell in the target grouping list, the unified configuration that should be used by each cell in the target grouping list is obtained by a preset configuration calculation algorithm.

211. The CCE sends the target uplink-downlink ratio to each cell in the target grouping list.

Through the above method, the CCE centrally manages the cells, groups the cells with interference, and obtains the target group list, and determines the target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target group list, and the target uplink and downlink The row configuration is used to provide each cell in the target group list for uplink and downlink services, and the interfering cells will use the same uplink and downlink ratio, which effectively avoids the gap between cells without causing cell coverage cracks. The uplink and downlink interference conflicts between them.

Correspondingly, in an apparatus for cell management provided by an embodiment of the present invention, when the apparatus is a CCE, as shown in FIG. 6 , the grouping unit 11 in the apparatus includes:

The first module 31 is configured to select a cell from a reference cell list as a reference cell, the reference cell list including cells managed by the CCE;

The second module 32 is configured to receive an interfering cell list sent by the base station of the reference cell, where the interfering cell list includes cells that interfere with the reference cell;

The third module 33 is configured to judge whether the list of interfering cells contains a target cell, and the target cell is a cell outside the preset temporary grouping list and the reference cell list;

The fourth module 34 is configured to add the target cell to the reference cell list, delete the reference cell from the reference cell list, and delete the target cell when the target cell is included in the interference cell list. The reference cell is added to the preset temporary grouping list;

A fifth module 35, configured to delete the reference cell from the reference cell list and add the reference cell to the preset temporary grouping list when the target cell is not included in the interference cell list ;

The sixth module 36 is used to judge whether the reference cell list is empty;

The seventh module 37 is configured to re-select a cell from the reference cell list as a reference cell when the reference cell list is not empty;

The eighth module 38 is configured to end the grouping process when the reference cell list is empty, and the obtained preset temporary grouping list is the target grouping list.

Wherein, the second module receives the list of interfering cells sent by the reference cell, and the list of interfering cells is generated by the reference cell according to the interference judgment threshold of the reference cell and the signal-to-interference ratio generated by signals from neighboring cells. The determination specifically includes: the base station of the reference cell receives a common reference signal sent by a base station of an adjacent cell, and calculates a first signal-to-interference ratio according to the common reference signal, and when the first signal-to-interference ratio is less than the When the interference judgment threshold of the reference cell is determined, the adjacent cell is determined to be a cell that interferes with the reference cell; or, the base station of the reference cell receives the reference signal sent by the user in the adjacent cell, and according to the reference The signal calculates a second signal-to-interference ratio, and when the second signal-to-interference ratio is smaller than the interference judgment threshold of the reference cell, it is determined that the adjacent cell is a cell that interferes with the reference cell.

The second module is specifically configured to receive the list of interfering cells sent by the base station of the reference cell in a broadcast multicast subframe or a special subframe.

The receiving unit in the device is specifically configured to receive the uplink-downlink configuration sent by the base station of each cell in the target group list in a broadcast multicast subframe or a special subframe.

As shown in Figure 7, the device also includes:

The first sending unit 21 is configured to send the target uplink-downlink ratio to each cell in the target grouping list.

The CCE is any one of a macro base station, a core network, a gateway, an Ethernet switch, or an Internet Protocol IP router.

The embodiment of the present invention also provides a method for cell management. As shown in FIG. 8 , cell grouping is performed in a distributed manner through the base stations of each cell, and the interfaces between the base stations of each cell are air interface, X2 port, Ethernet Any one of the network port or the optical port, the interface between the base station of each cell and the CCE is any one of the air port, the S1 port, the Ethernet port or the optical port, as shown in Figure 9, the method is specific Proceed as follows:

301. The base station of the first cell receives a reference cell list sent by the CCE, where the reference cell list includes all cells managed by the CCE, and the first cell is a cell managed by the CCE.

Each cell in the reference cell list listens to the signals of its neighboring cells at different time points and at the same period, taking the first cell as an example, wherein the reference cell list includes the first cell managed by the CCE The first district, the second district, ... the tenth district, a total of ten districts.

Each cell in the reference cell list listens to the signals of its neighboring cells, and groups the cells to obtain a target group list.

302. The base station of the first cell determines a first interference cell list, where the first interference cell list includes the first cell and cells that interfere with the first cell.

The cell that interferes with the first cell in the first interfering cell list is determined by the base station of the first cell according to the interference judgment threshold of the first cell and the signal-to-interference ratio generated by signals from adjacent cells , specifically include:

The base station of the first cell receives the common reference signal sent by the base station of the adjacent cell, and calculates a first signal-to-interference ratio according to the common reference signal, and when the first signal-to-interference ratio is smaller than the interference of the first cell When judging the threshold, determine that the neighboring cell is a cell that interferes with the first cell; or,

The base station of the first cell receives a reference signal sent by a user in an adjacent cell, and calculates a second signal-to-interference ratio according to the reference signal, and when the second signal-to-interference ratio is smaller than the interference judgment of the first cell When the threshold is set, it is determined that the neighboring cell is a cell that interferes with the first cell.

For example, the base station of the first cell receives the common reference signal sent by the base station of the second cell, and by the ratio of the transmit power of the base station of the first cell to the received common reference signal sent by the base station of the second cell, obtaining a first signal-to-interference ratio, and determining that the second cell is a cell that interferes with the first cell when the first signal-to-interference ratio is smaller than an interference judgment threshold of the first cell;

Or, the base station of the first cell receives the reference signal sent by the user in the second cell, and by the ratio of the transmission power of the base station of the first cell to the received reference signal sent by the user in the second cell, A second signal-to-interference ratio is obtained, and when the second signal-to-interference ratio is smaller than an interference judgment threshold of the first cell, it is determined that the second cell is a cell that interferes with the first cell.

For the above two methods for determining the cell that interferes with the reference cell, one method may be selected in the present invention, or both methods may be used. When two methods are used, as long as the ratio obtained by one of the methods is smaller than the interference judgment threshold of the first cell, the determined neighboring cell is a cell that interferes with the first cell.

303. The base station of the first cell broadcasts the first interfering cell list, and deletes the first cell from the reference cell list.

Each cell in the reference cell list broadcasts its determined interference cell list at different time points and at the same period.

The base station of the first cell broadcasts the first interfering cell list in a broadcast multicast subframe or a special subframe.

As shown in FIG. 10, the first cell broadcasts its first interfering cell list to other cells as a broadcast cell at a specific time point (broadcast multicast subframe or special subframe), and other cells receive the broadcast, and wait until At the next time point, the second cell serves as the broadcasting cell, while the first cell and other cells receive the broadcast, and so on, each cell in the reference cell list takes turns as the broadcasting cell, and the reference cell is broadcasted ten times List of interfering cells for all cells in the list.

Wherein, when the first cell broadcasts the first interfering cell list in a special subframe, since the number of downlink symbols in the special subframe can be dynamically adjusted, the first cell is broadcasting the first interfering cell list When , more downlink symbols are configured in the special subframe to carry the first interfering cell list, and fewer downlink symbols are configured for other cells, so that other cells can use the gaps in the special subframe to The first interfering cell list broadcast by the first cell is received and demodulated to obtain the first interfering cell list.

304. The base station of the first cell selects a cell from the list of reference cells as a reference cell, and obtains a list of interfering cells broadcast by the base station of the reference cell, where the list of interfering cells includes the reference cell and the The reference cell is a cell with interference.

The base station of the first cell receives the list of interfering cells broadcast by the base station of the reference cell in a broadcast multicast subframe or a special subframe.

305. When the list of interfering cells includes the first cell, and the first list of interfering cells is different from the list of interfering cells, the base station of the first cell adds the cells in the list of interfering cells adding to the first interfering cell list, and deleting the reference cell from the reference cell list;

306. When the first cell is included in the interfering cell list, and the first interfering cell list is the same as the interfering cell list, the base station of the first cell replaces the reference cell with the reference cell delete from the list;

307. When the first cell is not included in the interfering cell list, the base station of the first cell deletes the reference cell from the reference cell list.

For example, the reference cell is the second cell in the reference cell list, the first interfering cell list includes the first cell, the second cell, the fourth cell, and the fifth cell, and the interfering cell list includes The first cell, the second cell, the third cell and the sixth cell. Since the first cell is included in the interfering cell list, and the first interfering cell list is different from the interfering cell list, add both the third cell and the sixth cell to the first interfering cell list , and delete the second cell from the reference cell list;

Alternatively, the first interfering cell list includes the first cell, the second cell, the fourth cell, and the fifth cell, and the interfering cell list includes the first cell, the second cell, the fourth cell, and the fifth cell. Since the first cell is included in the interfering cell list, and the first interfering cell list is the same as the interfering cell list, the first interfering cell list remains unchanged, and the base station of the first cell sets the The second cell is deleted from the reference cell list;

Or, when the list of interfering cells does not include the first cell, the base station of the first cell deletes the second cell from the reference cell list.

308. The base station of the first cell judges whether the reference cell list is empty;

309. When the reference cell list is not empty, the base station of the first cell reselects a cell from the reference cell list as a reference cell, and acquires an interference cell list broadcast by the base station of the reference cell;

310. When the reference cell list is empty, end the grouping process, and the obtained first interference cell list is the target grouping list.

The base station of the first cell decides whether to continue to obtain the interfering cell list of the cell according to whether the reference cell list includes the cell, and ends the grouping process until the reference cell list is empty, and the obtained first interfering cell list is the target grouping list.

If a certain cell is not in any of the lists when receiving the interfering cell lists of all other cells, it indicates that the certain cell does not interfere with the other cells and can be independent of the target In addition to the group list, configure different uplink and downlink ratios.

311. The base station of the first cell receives the uplink and downlink ratios broadcast in a broadcast multicast subframe or a special subframe by base stations of other cells in the target group list except the first cell.

312. The base station of the first cell sends the uplink and downlink ratios of the first cell to all other cells in the target group list except the first cell, so that all cells except the first cell in the target group list Each cell other than the first cell may determine the target uplink-downlink ratio.

The base station of the first cell broadcasts the uplink-downlink configuration of the first cell to other cells in the target grouping list except the first cell in a broadcast multicast subframe or a special subframe.

As shown in Figure 10, the first cell broadcasts its uplink and downlink ratios to other cells as a broadcast cell at a specific time point (broadcast multicast subframe or special subframe), and other cells receive the broadcast and wait until the next time point, the second cell is used as a broadcast cell, and so on, each cell in the reference cell list is used as a broadcast cell in turn, and the uplink and downlink ratios of all cells in the reference cell list are broadcasted ten times.

313. Determine a target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target group list, and the target uplink and downlink ratio is used to provide each cell in the target group list for uplink and downlink service transmission .

According to receiving the uplink and downlink ratios of other cells in the target grouping list, combined with its own uplink and downlink ratio requirements, and using a preset ratio calculation algorithm, it is obtained that each cell in the target grouping list should use uniform ratio. In addition, the first cell may also compare the uplink-downlink configuration corresponding to its own service requirements with the calculated target uplink-downlink configuration ratio, and if it will not cause interference to other cells in the target grouping list, then the The uplink-downlink configuration corresponding to the self-service requirement is set as the uplink-downlink ratio used by the first cell. For example, the target uplink-downlink ratio is 2 (DL: UL=3:2), but the current uplink and downlink services of the first cell are less, even if the uplink-downlink ratio is configured as 2, downlink resources will still have It is very idle, but it still needs to consume power to transmit downlink pilot signals, which is not conducive to the energy saving of the base station of the first cell. At this time, the first cell may set the uplink-downlink ratio to ratio 0 (DL:UL=2:3), wherein the downlink subframe corresponding to the target uplink-downlink ratio does not schedule any uplink subframe. Data, so there will be no interference to adjacent cells, and downlink power consumption will be reduced.

Through the above method, each cell in the reference cell list listens to the signals of its neighboring cells at different points in time with the same cycle to obtain its own list of interfering cells, and then at different points in time with the same cycle Broadcast to other cells, finally determine the target grouping list, and determine the target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target grouping list, and the interfering cell will use the same uplink and downlink ratio. Under the premise of cell coverage cracks, uplink and downlink interference conflicts between cells are effectively avoided.

Correspondingly, an apparatus for cell management provided by an embodiment of the present invention, when the apparatus is a base station of a first cell, the first cell is a cell managed by a CCE, and the receiving unit in the base station also uses After receiving the reference cell list sent by the CCE, the reference cell list includes all cells managed by the CCE.

As shown in Figure 11, the grouping unit in the base station includes:

The first module 41 is configured to determine a first interfering cell list, where the first interfering cell list includes the first cell and cells that interfere with the first cell;

The second module 42 is configured to broadcast the first interfering cell list, and delete the first cell from the reference cell list;

The third module 43 is configured to select a cell from the list of reference cells as a reference cell, and obtain a list of interfering cells broadcast by the base station of the reference cell, the list of interfering cells includes the reference cell and the reference cell Cells with interference;

A fourth module 44, configured to add cells in the interfering cell list to in the first interfering cell list, and delete the reference cell from the reference cell list;

The fifth module 45 is configured to remove the reference cell from the reference cell list when the first cell is included in the list of interfering cells, and the first list of interfering cells is the same as the list of interfering cells. delete;

A sixth module 46, configured to delete the reference cell from the reference cell list when the first cell is not included in the interference cell list;

The seventh module 47 is used to judge whether the reference cell list is empty;

An eighth module 48, configured to reselect a cell from the reference cell list as a reference cell when the reference cell list is not empty, and obtain a list of interfering cells broadcast by the base station of the reference cell;

The ninth module 49 is configured to end the grouping process when the reference cell list is empty, and the obtained first interfering cell list is the target grouping list.

Wherein, the cells that interfere with the first cell in the first interfering cell list determined by the first module are the signal-to-interference ratios generated according to the interference judgment threshold of the first cell and signals from neighboring cells. The determination specifically includes: the base station of the first cell receives a common reference signal sent by a base station of an adjacent cell, and calculates a first signal-to-interference ratio according to the common reference signal, and when the first signal-to-interference ratio is less than When the interference judgment threshold of the first cell is determined, the adjacent cell is determined to be a cell that interferes with the first cell; or, the base station of the first cell receives a reference signal sent by a user in the adjacent cell, And calculate a second signal-to-interference ratio according to the reference signal, and when the second signal-to-interference ratio is smaller than the interference judgment threshold of the first cell, determine that the adjacent cell interferes with the first cell district.

The second module is specifically configured to broadcast the first interfering cell list in a broadcast multicast subframe or a special subframe;

The third module is specifically configured to obtain a list of interfering cells broadcast by the base station of the reference cell in a broadcast multicast subframe or a special subframe.

The receiving unit in the base station is specifically configured to receive the uplink and downlink configurations broadcast in broadcast multicast subframes or special subframes by base stations of other cells in the target group list except the first cell. Compare.

As shown in Figure 12, the base station also includes:

The second sending unit 51 is configured to send the uplink and downlink ratios of the first cell to other cells in the target group list except the first cell, so that the target group list except the first cell Each cell other than the first cell may determine the target uplink-downlink ratio.

The second sending unit is specifically configured to broadcast the uplink-downlink ratio of the first cell to other cells in the target group list except the first cell in a broadcast multicast subframe or a special subframe .

The base station includes a macro base station or a micro station.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (24)

1. A method of cell management, comprising:

grouping cells to obtain a target grouping list;

receiving uplink and downlink proportion sent by the cells in the target grouping list;

determining a target uplink and downlink ratio according to the uplink and downlink ratios of each cell in the target grouping list, wherein the target uplink and downlink ratio is used for providing each cell in the target grouping list for uplink and downlink service transmission;

the grouping the cells to obtain the target grouping list comprises:

a CCE (control channel element) is selected from a reference cell list by a centralized management device to serve as a reference cell, and the reference cell list comprises cells managed by the CCE;

the CCE receives an interference cell list sent by a base station of the reference cell, wherein the interference cell list comprises cells which have interference on the reference cell;

the CCE judges whether the interference cell list contains a target cell, wherein the target cell is a cell outside a preset temporary packet list and the reference cell list;

when the interference cell list comprises a target cell, the CCE adds the target cell to the reference cell list, deletes the reference cell from the reference cell list, and adds the reference cell to the preset temporary grouping list;

when the target cell is not included in the interfering cell list, the CCE deletes the reference cell from the reference cell list and adds the reference cell to the preset temporary grouping list;

the CCE judges whether the reference cell list is empty or not;

when the reference cell list is not empty, selecting a cell from the reference cell list as a reference cell;

when the reference cell list is empty, ending the grouping process, wherein the obtained preset temporary grouping list is a target grouping list; or,

the grouping the cells to obtain the target grouping list comprises:

a base station of a first cell determines a first interfering cell list, wherein the first interfering cell list comprises the first cell and cells interfering with the first cell;

the base station of the first cell broadcasts the first interfering cell list and deletes the first cell from the reference cell list;

the base station of the first cell selects a cell from the reference cell list as a reference cell, and acquires an interference cell list broadcasted by the base station of the reference cell, wherein the interference cell list comprises the reference cell and a cell with interference to the reference cell;

when the interfering cell list includes the first cell and the first interfering cell list is different from the interfering cell list, the base station of the first cell adds the cell in the interfering cell list to the first interfering cell list and deletes the reference cell from the reference cell list;

when the first cell is included in the interfering cell list and the first interfering cell list is the same as the interfering cell list, the base station of the first cell deletes the reference cell from the reference cell list;

when the first cell is not included in the interfering cell list, the base station of the first cell deletes the reference cell from the reference cell list;

the base station of the first cell judges whether the reference cell list is empty;

when the reference cell list is not empty, the base station of the first cell reselects a cell from the reference cell list as a reference cell to acquire an interference cell list broadcasted by the base station of the reference cell;

and when the reference cell list is empty, ending the grouping process, wherein the obtained first interference cell list is a target grouping list.

2. The method of claim 1, wherein the determining of the interfering cell list by the reference cell according to the interference decision threshold of the reference cell and the signal-to-interference ratio generated by signals from neighboring cells comprises:

the base station of the reference cell receives a common reference signal sent by a base station of an adjacent cell, calculates a first signal-to-interference ratio according to the common reference signal, and determines that the adjacent cell is a cell with interference to the reference cell when the first signal-to-interference ratio is smaller than an interference decision threshold of the reference cell;

or,

and the base station of the reference cell receives a reference signal sent by a user in an adjacent cell, calculates a second signal-to-interference ratio according to the reference signal, and determines that the adjacent cell is a cell with interference to the reference cell when the second signal-to-interference ratio is smaller than an interference decision threshold of the reference cell.

3. The method of claim 1, wherein the CCE receiving the list of interfering cells transmitted by the base station of the reference cell comprises:

and the CCE receives an interference cell list sent by the base station of the reference cell in a broadcast multicast subframe or a special subframe.

4. The method of claim 1, wherein the receiving uplink and downlink assignments sent by the cells in the target packet list comprises:

and the CCE receives the uplink and downlink ratio sent by the base station of each cell in the target grouping list in a broadcast multicast subframe or a special subframe.

5. The method of claim 1, wherein after determining the target uplink/downlink ratio according to the uplink/downlink ratios of the cells in the target grouping list, the method further comprises:

and the CCE sends the target uplink and downlink ratio to each cell in the target grouping list.

6. The method of claim 1, wherein the step of grouping cells to obtain a target grouping list further comprises:

and the base station of the first cell receives the reference cell list sent by the CCE, the reference cell list comprises all cells managed by the CCE, and the first cell is a cell managed by the CCE.

7. The method of claim 1, wherein the base station of the first cell, which is a cell in the first interfering cell list and which has interference with the first cell, determines the cell according to the interference decision threshold of the first cell and a signal-to-interference ratio generated by signals from neighboring cells, and specifically comprises:

the base station of the first cell receives a common reference signal sent by a base station of an adjacent cell, calculates a first signal-to-interference ratio according to the common reference signal, and determines that the adjacent cell is a cell with interference to the first cell when the first signal-to-interference ratio is smaller than an interference decision threshold of the first cell;

or,

and the base station of the first cell receives a reference signal sent by a user in an adjacent cell, calculates a second signal-to-interference ratio according to the reference signal, and determines that the adjacent cell is a cell with interference to the first cell when the second signal-to-interference ratio is smaller than an interference decision threshold of the first cell.

8. The method of claim 1,

the broadcasting of the first interfering cell list by the base station of the first cell comprises:

the base station of the first cell broadcasts the first interfering cell list in a broadcast multicast subframe or a special subframe;

the obtaining, by the base station of the first cell, the interfering cell list broadcasted by the base station of the reference cell includes:

and the base station of the first cell acquires an interference cell list broadcasted by the base station of the reference cell in a broadcast multicast subframe or a special subframe.

9. The method of claim 7, wherein the receiving the uplink and downlink ratios sent by the cells in the target packet list comprises:

and the base station of the first cell receives the uplink and downlink ratio broadcasted by the base stations of other cells except the first cell in the target grouping list in the broadcast multicast subframe or the special subframe.

10. The method of claim 7, further comprising:

and the base station of the first cell sends the uplink and downlink ratio of the first cell to other cells except the first cell in the target grouping list, so that the other cells except the first cell in the target grouping list can determine the target uplink and downlink ratio.

11. The method of claim 10, wherein the sending, by the base station of the first cell, the uplink and downlink ratios of the first cell to the cells other than the first cell in the target group list comprises:

and the base station of the first cell broadcasts the uplink and downlink ratio of the first cell to other cells except the first cell in the target grouping list in a broadcast multicast subframe or a special subframe.

12. An apparatus for interfering cell group management, comprising:

the grouping unit is used for grouping the cells to obtain a target grouping list;

a receiving unit, configured to receive an uplink-downlink ratio sent by a cell in the target grouping list;

a processing unit, configured to determine a target uplink-downlink ratio according to the uplink-downlink ratio of each cell in the target grouping list, where the target uplink-downlink ratio is used for providing uplink-downlink service transmission for each cell in the target grouping list;

when the apparatus is a centralized management device (CCE), the grouping unit includes:

a first module, configured to select a cell from a reference cell list as a reference cell, where the reference cell list includes cells managed by the CCE;

a second module, configured to receive an interfering cell list sent by a base station of the reference cell, where the interfering cell list includes cells that interfere with the reference cell;

a third module, configured to determine whether the interfering cell list includes a target cell, where the target cell is a cell outside a preset temporary packet list and the reference cell list;

a fourth module, configured to add the target cell to the reference cell list, delete the reference cell from the reference cell list, and add the reference cell to the preset temporary grouping list when the interfering cell list includes the target cell;

a fifth module, configured to delete the reference cell from the reference cell list and add the reference cell to the preset temporary grouping list when the target cell is not included in the interfering cell list;

a sixth module, configured to determine whether the reference cell list is empty;

a seventh module, configured to re-select a cell from the reference cell list as a reference cell when the reference cell list is not empty;

an eighth module, configured to end the grouping process when the reference cell list is empty, where the obtained preset temporary grouping list is a target grouping list; or,

the grouping unit includes:

a first module configured to determine a first interfering cell list, where the first interfering cell list includes a first cell and cells with interference to the first cell;

a second module configured to broadcast the first interfering cell list and delete the first cell from the reference cell list;

a third module, configured to select a cell from the reference cell list as a reference cell, and obtain an interfering cell list broadcasted by a base station of the reference cell, where the interfering cell list includes the reference cell and a cell with interference to the reference cell;

a fourth module, configured to add a cell in the interfering cell list to the first interfering cell list and delete the reference cell from the reference cell list when the interfering cell list includes the first cell and the first interfering cell list is different from the interfering cell list;

a fifth module, configured to delete the reference cell from the reference cell list when the interfering cell list includes the first cell and the first interfering cell list is the same as the interfering cell list;

a sixth module for deleting the reference cell from the reference cell list when the first cell is not included in the interfering cell list;

a seventh module, configured to determine whether the reference cell list is empty;

an eighth module, configured to reselect a cell from the reference cell list as a reference cell when the reference cell list is not empty, and acquire an interfering cell list broadcasted by a base station of the reference cell;

a ninth module, configured to end the grouping procedure when the reference cell list is empty, and the obtained first interfering cell list is a target grouping list.

13. The apparatus of claim 12, wherein the second module receives an interfering cell list sent by the reference cell, and wherein the interfering cell list is determined by the reference cell according to an interference decision threshold of the reference cell and a signal-to-interference ratio generated by signals from neighboring cells, specifically comprising: the base station of the reference cell receives a common reference signal sent by a base station of an adjacent cell, calculates a first signal-to-interference ratio according to the common reference signal, and determines that the adjacent cell is a cell with interference to the reference cell when the first signal-to-interference ratio is smaller than an interference decision threshold of the reference cell; or the base station of the reference cell receives a reference signal sent by a user in an adjacent cell, calculates a second signal-to-interference ratio according to the reference signal, and determines that the adjacent cell is a cell having interference with the reference cell when the second signal-to-interference ratio is smaller than an interference decision threshold of the reference cell.

14. The apparatus of claim 12, wherein the second module is specifically configured to receive a list of interfering cells sent by the base station of the reference cell in a broadcast-multicast subframe or a special subframe.

15. The apparatus of claim 12, wherein the receiving unit is specifically configured to receive uplink and downlink allocations sent by the base station of each cell in the target group list in a broadcast multicast subframe or a special subframe.

16. The apparatus of claim 12, further comprising:

a first sending unit, configured to send the target uplink/downlink ratio to each cell in the target grouping list.

17. The apparatus of any of claims 12-16, wherein the CCE is any of a macro base station, a core network, a gateway, an ethernet switch, or a network protocol IP router.

18. The apparatus of claim 12, wherein the first cell is a cell managed by CCE when the apparatus is a base station of the first cell,

the receiving unit is further configured to receive a reference cell list sent by the CCE, where the reference cell list includes all cells managed by the CCE.

19. The apparatus of claim 12, wherein the cell in the first interfering cell list determined by the first module, which interferes with the first cell, is determined according to an interference decision threshold of the first cell and a signal-to-interference ratio generated by signals from neighboring cells, and specifically comprises: the base station of the first cell receives a common reference signal sent by a base station of an adjacent cell, calculates a first signal-to-interference ratio according to the common reference signal, and determines that the adjacent cell is a cell with interference to the first cell when the first signal-to-interference ratio is smaller than an interference decision threshold of the first cell; or the base station of the first cell receives a reference signal sent by a user in an adjacent cell, calculates a second signal-to-interference ratio according to the reference signal, and determines that the adjacent cell is a cell with interference to the first cell when the second signal-to-interference ratio is smaller than an interference decision threshold of the first cell.

20. The apparatus of claim 12,

the second module is specifically configured to broadcast the first interfering cell list in a broadcast-multicast subframe or a special subframe;

the third module is specifically configured to acquire an interfering cell list broadcasted by the base station of the reference cell in a broadcast multicast subframe or a special subframe.

21. The apparatus of claim 18, wherein the receiving unit is specifically configured to receive uplink and downlink configuration ratios broadcasted by base stations of cells other than the first cell in the target group list in a broadcast-multicast subframe or a special subframe.

22. The apparatus of claim 18, further comprising:

a second sending unit, configured to send uplink and downlink ratios of the first cell to each cell in the target grouping list except the first cell, so that each cell in the target grouping list except the first cell can determine the target uplink and downlink ratios.

23. The apparatus of claim 22, wherein the second sending unit is specifically configured to broadcast the uplink/downlink configuration ratio of the first cell to each of the cells other than the first cell in the target group list in a broadcast-multicast subframe or a special subframe.

24. The apparatus of any of claims 18-23, wherein the base station comprises a macro base station or a micro station.