WO2016155404A1 - 一种干扰规避方法及装置 - Google Patents

一种干扰规避方法及装置 Download PDF

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Publication number
WO2016155404A1
WO2016155404A1 PCT/CN2016/070634 CN2016070634W WO2016155404A1 WO 2016155404 A1 WO2016155404 A1 WO 2016155404A1 CN 2016070634 W CN2016070634 W CN 2016070634W WO 2016155404 A1 WO2016155404 A1 WO 2016155404A1
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Prior art keywords
cell
base station
mbsfn area
area
reserved
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PCT/CN2016/070634
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English (en)
French (fr)
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张毅
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华为技术有限公司
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Publication of WO2016155404A1 publication Critical patent/WO2016155404A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an interference avoiding method and apparatus.
  • the radio access network provides a point-to-point unicast bearer service, and supports upper layer user services such as file downloading and streaming, and the unicast bearer service cannot share the wireless and transmission resources of the access network.
  • LTE Long Term Evolution
  • the Multimedia Broadcast Multicast Service is introduced on the mobile network to share some user services with a concentration of interest in a point-to-multipoint manner by sharing wireless and transmission resources, for example:
  • the live broadcast of the event video and the push of hot news can improve the user's business experience while reducing the network load.
  • it provides opportunities for operators to reduce equipment investment, explore new business models and increase revenue.
  • eMBMS enhanced MBMS
  • eMBMS enhanced MBMS
  • LTE networks LTE networks. It eliminates the user-oriented multicast function and broadcasts on the air interface based on Single Frequency Network (SFN) technology.
  • SFN Single Frequency Network
  • eMBMS Session A broadcast service that lasts for a period of time and corresponds to the actual broadcast service.
  • Multicast/multicast single frequency network (MBSFN) synchronization area refers to an area capable of MBSFN transmission, and all eNodeBs in the area can be synchronized and perform MBSFN transmission;
  • MBSFN area is a group of cells in the MBSFN synchronization area. This group of cells implements MBSFN transmission by coordination, and uses the same air interface resources to allocate and transmit the same MBMS service/session.
  • the MBSFN cell signals from multiple cells appear to be from one cell, and the multi-cell signal combining can obtain a larger MBSFN gain.
  • the adjacent MBSFN area continues to transmit downlink on the MBSFN time-frequency resource, so the unicast cell will be interfered with other conventional unicast neighboring areas. It is larger, so it is necessary to set an MBSFN Area Reserved Cell for spatial isolation of time-frequency resources.
  • the reserved cell set in the MBSFN area is as shown in FIG. 1 .
  • reserved cells in the MBSFN area in the 3rd Generation Partnership Project (3GPP) protocol cells that do not perform eMBMS services in the MBSFN area, or use limited power on time-frequency resources used for MBSFN transmission
  • the reserved cell is mainly used to control the interference of the broadcast cell to the unicast neighboring cell.
  • Manually identifying a reserved cell needs to know the neighbor relationship, and perform complex network planning in advance and is likely to have a leak identification. When there are multiple MBSFN areas, the artificial identification of the reserved cell is more complex.
  • the present invention provides an interference avoiding method and apparatus, which can automatically identify a reserved cell and reduce interference.
  • the interference avoiding apparatus includes:
  • a first acquiring unit configured to acquire a cell list, a cell neighbor relationship, and inter-cell interference information reported by the base station in the MBSFN area of the multicast/multicast single-frequency network and the base station in the non-MBSFN area;
  • a first determining unit configured to determine, according to the cell list, the cell neighbor relationship, and the inter-cell interference information, the reserved cell in the MBSFN area by combining the preset relationship between the cell and the MBSFN area, Other cells in the MBSFN area except the reserved cell are broadcast transmission cells;
  • a first receiving unit configured to receive an enhanced multimedia broadcast multicast service eMBMS session request sent by the mobility management entity MME;
  • a first sending unit configured to send a first session indication to the base station of the reserved cell, where the first The session indication is used to indicate the base station of the reserved cell: for the reserved cell, the eMBMS service is not performed on the time-frequency resource occupied by the broadcast transmission cell, or the unicast service is performed using the power less than the preset power.
  • the first sending unit is further configured to: before the first session indication is sent to the base station of the reserved cell, to the reservation by using a preset interface
  • the base station of the cell sends a notification message, where the notification message is used to notify the base station of the reserved cell: which cells in the coverage of the base station of the reserved cell belong to the reserved cell;
  • the preset interface includes a standard interface and/or a private interface.
  • the first acquiring unit is configured to acquire, by using the preset interface, a base station in the MBSFN area, and the foregoing A cell list, a cell neighbor relationship, and inter-cell interference information reported by a base station in a non-MBSFN area.
  • the reserved cell refers to: In the MBSFN area, a cell adjacent to the non-MBSFN area and adjacent to a cell adjacent to the non-MBSFN area is greater than a preset interference threshold.
  • the interference avoiding apparatus provided by the embodiment of the present invention includes:
  • a second acquiring unit configured to acquire a cell list, a cell neighbor relationship, and inter-cell interference information reported by the base station in the MBSFN area of the multicast/multicast single-frequency network and the base station in the non-MBSFN area;
  • a second determining unit configured to determine, according to the cell list, the cell neighbor relationship, and the inter-cell interference information, the boundary neighboring area of the MBSFN area by combining the preset relationship between the cell and the MBSFN area;
  • a second receiving unit configured to receive an enhanced multimedia broadcast multicast service eMBMS session request sent by the mobility management entity MME;
  • a second sending unit configured to send, to the base station of the border neighboring area, a second session indication, where the second session indicates a base station that is used to indicate the border neighboring area: in the MBSFN area, for the border neighboring area
  • the unicast service is not performed on the broadcast time-frequency resource occupied by the inner cell or the unicast service is performed using the power less than the preset power.
  • the second sending unit is further used Before sending the second session indication to the base station of the border neighboring area, sending, by using a preset interface, a notification message to the base station of the border neighboring area, where the notification message is used to notify the base station of the border neighboring area: Which cells in the coverage area of the border neighboring area belong to the border neighboring area;
  • the preset interface includes a standard interface and/or a private interface.
  • the second acquiring unit is configured to acquire, by using the preset interface, a base station in the MBSFN area, A cell list, a cell neighbor relationship, and inter-cell interference information reported by a base station in a non-MBSFN area.
  • the border neighboring area refers to: In the non-MBSFN area, a cell adjacent to the MBSFN area and having interference with a cell adjacent to the MBSFN area is greater than a preset interference threshold.
  • the interference avoiding method provided by the embodiment of the present invention includes:
  • Other cells outside the cell are broadcast transmission cells;
  • the service or unicast service is performed using power less than the preset power.
  • the preset interface includes a standard interface and/or a private interface.
  • the acquiring the cell list and the cell neighbor relationship information reported by the base station in the MBSFN area and the base station in the non-MBSFN area includes:
  • the reserved cell refers to: In the MBSFN area, a cell adjacent to the non-MBSFN area and adjacent to a cell adjacent to the non-MBSFN area is greater than a preset interference threshold.
  • the interference avoiding method provided by the embodiment of the present invention includes:
  • a second session indication where the second session indicates a base station indicating the border neighboring area: for the border neighboring area, when the cell occupied by the cell in the MBSFN area is broadcasted
  • the unicast service is not performed on the frequency resource or the unicast service is performed using power less than the preset power.
  • the method before the second session indication is sent to the base station of the border neighboring area, the method further includes:
  • the preset interface includes a standard interface and/or a private interface.
  • the acquiring the cell list and the cell neighbor relationship information reported by the base station in the MBSFN area and the base station in the non-MBSFN area includes:
  • the border neighboring area refers to: In the non-MBSFN area, a cell adjacent to the MBSFN area and having interference with a cell adjacent to the MBSFN area is greater than a preset interference threshold.
  • the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the non-MBSFN area are obtained; the cell list, the cell neighbor relationship, and the interference information between the cells are obtained.
  • the reserved cell Determining the reserved cell by combining the preset cell with the affiliation information of the MBSFN area, that is, realizing the automatic identification of the reserved cell; after receiving the eMBMS session request sent by the MME, sending the first session indication to the base station of the reserved cell, the first session Determining the base station for indicating the reserved cell: for the reserved cell, the eMBMS service is not performed on the time-frequency resource occupied by the broadcast transmission cell, or the unicast service is performed using the power less than the preset power, that is, the interference is reduced, and the MBSFN area is ensured. Both the eMBMS service and the unicast service in the non-MBSFN area can be performed normally.
  • FIG. 1 is a schematic diagram of an embodiment of a reserved cell in the prior art
  • FIG. 2 is a schematic diagram of an embodiment of an interference avoidance device of the present invention.
  • FIG. 3 is a schematic view of another embodiment of the interference avoiding device of the present invention.
  • 4a is a schematic diagram of another embodiment of the interference avoiding device of the present invention.
  • Figure 4b is a schematic view of an embodiment of a border neighborhood of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of the interference avoiding device of the present invention.
  • FIG. 6 is a schematic diagram of an embodiment of an interference avoidance method of the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of the interference avoidance method of the present invention.
  • the invention provides an interference avoiding method and device, which can automatically identify a reserved cell and reduce interference.
  • the interference avoidance device provided by the embodiment of the present invention may be a functional entity with a Multi-cell/Multicast Coordination Entity (MCE) function, and the MCE has an admission control of an eMBMS session and an MBSFN time-frequency resource of the base station.
  • MCE Multi-cell/Multicast Coordination Entity
  • an embodiment of the interference avoidance apparatus of the present invention includes:
  • the first acquiring unit 201 is configured to acquire a cell list, a cell neighbor relationship, and inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area;
  • the first determining unit 202 is configured to determine, according to the cell list, the cell neighbor relationship, and the inter-cell interference information acquired by the first acquiring unit 201, the reserved cell in the MBSFN area by using the preset relationship between the cell and the MBSFN area.
  • the other cells in the MBSFN area except the reserved cell are broadcast transmission cells;
  • the first receiving unit 203 is configured to receive an eMBMS session request sent by the MME.
  • the first sending unit 204 is configured to send a first session indication to the base station of the reserved cell, where the first session indication is used to indicate the base station of the reserved cell: for the reserved cell, the eMBMS service is not performed on the time-frequency resource occupied by the broadcast transmission cell or Unicast traffic is performed using power less than the preset power.
  • the first acquiring unit 201 acquires, by using a preset interface, a cell list, a cell neighbor relationship, and inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area.
  • the preset interface includes a standard interface and/or a private interface, and the standard interface may be an interface specified in an existing communication protocol, and the private interface may be some new interface for obtaining various types of information from the base station.
  • some resources (referring to resources in time) can be broadcast, and another part of resources can be unicast.
  • a non-MBSFN area all resources can only be used for unicast.
  • the interference information of the small interval may refer to: the number of times of switching between each cell and other cells within a preset time.
  • the terminal accessing the cell will switch to another cell. Therefore, the more handovers between two cells, the greater the interference between the two cells.
  • the first determining unit 202 may determine the degree of interference between any two cells according to the number of times of switching between the cells and other cells.
  • the first determining unit 202 obtains a cell neighbor relationship topology map according to the cell list and the cell neighbor relationship information acquired by the first acquiring unit 201, and combines the information of the preset cell and the MBSFN area (ie, which cells belong to the MBSFN area). And the inter-cell interference information can determine the reserved cell in the MBSFN area, and the determined reserved cell can be as shown in FIG.
  • the reserved cell refers to a cell that is located in the MBSFN area and that is adjacent to the non-MBSFN area and that is adjacent to the non-MBSFN area and whose interference is greater than the preset interference threshold.
  • the first receiving unit 203 may receive an eMBMS session request sent by the MME.
  • the first sending unit 204 may send a notification message to the base station of the reserved cell through the preset interface, where the notification message is used to notify the base station of the reserved cell: which cells in the coverage of the base station of the reserved cell belong to the reserved cell.
  • the first sending unit 204 sends a first session indication to the base station of the reserved cell, where the first session indication is used to indicate the base station of the reserved cell: for the reserved cell, the eMBMS service is not used or used on the time-frequency resource occupied by the broadcast transmission cell.
  • a unicast service is performed with a power smaller than a preset power.
  • the first sending unit 204 may further send a third session indication time-frequency resource allocation information to the base station of the broadcast transmission cell, where the third session indicates that the time-frequency resource allocation information is used to indicate the base station of the broadcast transmission cell: according to the third session indication
  • the frequency resource allocation information allocates time-frequency resources for the broadcast transmission cell.
  • the first sending unit 204 may further send a fourth session indication to the base station of the non-MBSFN area, where the fourth session indicates that the base station of the non-MBSFN area does not perform unicast service on the time-frequency resource occupied by the broadcast transmission cell.
  • the first acquiring unit acquires the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the non-MBSFN area, and the first determining unit is configured according to the cell list and the cell neighboring area.
  • Relationship and inter-cell interference information combined with the preset cell and MBSFN area attribution relationship information to determine the reserved cell, that is, automatic identification of the reserved cell;
  • the first sending unit After receiving the eMBMS session request sent by the MME, the first sending unit sends a first session indication to the base station of the reserved cell, where the first session indication is used to indicate the base station of the reserved cell: for the reserved cell, the time frequency occupied by the broadcast transmission cell
  • the unicast service is not performed on the resource, and the unicast service is used, and the unicast service in the MBSFN area and the unicast service in the non-MBSFN area can be performed normally.
  • another embodiment of the interference avoidance apparatus of the present invention includes a first memory 301, a first processor 302, and a first transceiver 303.
  • the first memory 301 is configured to store a set of program instructions
  • the first processor 302 is configured to invoke the program instructions stored in the first memory 301 to perform the following operations:
  • Determining a reserved cell in the MBSFN area according to the cell list, the cell neighboring cell relationship, and the inter-cell interference information, and combining the pre-set cell and the MBSFN area's affiliation information, and the other cells in the MBSFN area except the reserved cell are broadcast transmission cells;
  • the first transceiver 303 Receiving, by the first transceiver 303, the eMBMS session request sent by the MME, and sending, by the first transceiver 303, the first session indication to the base station of the reserved cell, where the first session indication is used to indicate the base station of the reserved cell: for the reserved cell, in the broadcast
  • the unicast service is not performed on the time-frequency resource occupied by the transmission cell, or the unicast service is performed using power less than the preset power.
  • interference avoidance device 300 provided in this embodiment may also be used to implement other functions in the foregoing device embodiments, and details are not described herein again.
  • another embodiment of the interference avoidance apparatus of the present invention includes:
  • the second obtaining unit 401 is configured to acquire a cell list, a cell neighbor relationship, and inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area;
  • the second determining unit 402 is configured to determine, according to the cell list, the cell neighbor relationship, and the inter-cell interference information acquired by the second acquiring unit 401, the boundary neighboring area of the MBSFN area by using the preset relationship between the cell and the MBSFN area;
  • the second receiving unit 403 is configured to receive an eMBMS session request sent by the MME.
  • the second sending unit 404 is configured to send a second session indication to the base station of the border neighboring area, where the second session indication is used to indicate the base station of the border neighboring area: the broadcast time-frequency resource occupied by the cell in the MBSFN area for the border neighboring area
  • the unicast service is not performed on the unicast service or the power less than the preset power.
  • the second acquiring unit 401 may obtain, by using a preset interface, a cell list, a cell neighbor relationship, and inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area.
  • the preset interface includes a standard interface and/or a private interface, and the standard interface may be an interface specified in an existing communication protocol, and the private interface may be some new interface for obtaining various types of information from the base station.
  • the interference information of the small interval may refer to: the number of times of switching between each cell and other cells within a preset time.
  • the terminal accessing the cell will switch to other cells, so the more the number of handovers between the two cells, the greater the interference between the two cells.
  • the second determining unit 402 can determine the degree of interference between any two cells according to the number of times of switching between the cells and other cells.
  • the second determining unit 402 may obtain a cell neighbor relationship topology map according to the cell list, the cell neighbor relationship, and the inter-cell interference information acquired by the second acquiring unit 401, and combine the preset cell with the MBSFN area (ie, which cells)
  • the MBSFN area information and the inter-cell interference information can determine the border neighboring area of the MBSFN area, and the border neighboring area refers to: located in the non-MBSFN area, adjacent to the MBSFN area and adjacent to the adjacent cell in the MBSFN area. If the interference is greater than the preset interference threshold, the determined boundary neighboring area may be as shown in FIG. 4b, and other cells in the non-MBSFN area except the border neighboring area are unicast transmission cells.
  • the second receiving unit 403 may receive an eMBMS session request sent by the MME.
  • the second sending unit 404 may first send a notification message to the base station of the border neighboring area through the preset interface, where the notification message is used to notify the base station of the border neighboring area: which cells in the coverage area of the border neighboring area belong to the border neighboring area.
  • the second sending unit 404 sends a second session indication to the base station of the border neighboring area, where the second session indication is used to indicate the base station of the border neighboring area: for the border neighboring area, on the broadcast time-frequency resource occupied by the cell in the MBSFN area Do not perform unicast services or use unicast services with less than the preset power.
  • the second sending unit 404 may further send a fifth session indication time-frequency resource allocation information to the base station in the MBSFN area, where the fifth session indicates that the time-frequency resource allocation information is used to indicate the base station in the MBSFN area: according to the fifth session indication
  • the frequency resource allocation information allocates time-frequency resources to cells in the MBSFN area.
  • the second sending unit 404 may further send a sixth session indication by the base station in the unicast transmission cell, where the sixth session indication is used to indicate that the base station in the unicast transmission cell does not perform on the broadcast time-frequency resource occupied by the cell in the MBSFN area.
  • Unicast business may further send a sixth session indication by the base station in the unicast transmission cell, where the sixth session indication is used to indicate that the base station in the unicast transmission cell does not perform on the broadcast time-frequency resource occupied by the cell in the MBSFN area.
  • the second obtaining unit acquires the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the non-MBSFN area, and the second determining unit is configured according to the cell list and the cell neighboring area.
  • the relationship between the inter-cell and the inter-cell interference information, and the boundary neighboring area of the MBSFN area is determined by combining the preset relationship between the cell and the MBSFN area, that is, the boundary neighboring area is automatically identified; when the second receiving unit receives the eMBMS session request sent by the MME Afterwards, the second sending unit sends a second session indication to the base station of the border neighboring area, where the second session indication is used to indicate the base station of the border neighboring area: for the border neighboring area, the broadcast time-frequency resource occupied by the cell in the MBSFN area is not
  • the unicast service or the unicast service using the power less than the preset power is used to reduce the interference, and the eMBMS service in the MBSFN area and the unicast service in the non-MBSFN area can be performed normally.
  • another embodiment of the interference avoidance apparatus of the present invention includes a second memory 501, a second processor 502, and a second transceiver 503.
  • the second memory 501 is configured to store a set of program instructions
  • the second processor 502 is configured to invoke program instructions stored in the second memory 501 to perform the following operations:
  • Determining the boundary neighboring area of the MBSFN area according to the cell list, the cell neighboring area relationship, and the interference information between the cells, and the neighboring area of the MBSFN area, and the border neighboring area refers to the non-MBSFN area and the MBSFN area.
  • the second transceiver 503 Receiving, by the second transceiver 503, an eMBMS session request sent by the MME, and sending, by the second transceiver 503, a second session indication to the base station of the border neighboring area, where the second session indication is used to indicate the base station of the border neighboring area: for the border neighboring area
  • the unicast service is not performed on the broadcast time-frequency resource occupied by the cell in the MBSFN area, or the unicast service is performed using the power less than the preset power.
  • interference avoidance device 500 provided in this embodiment may also be used to implement other functions in the foregoing device embodiments, and details are not described herein again.
  • the method in this embodiment includes:
  • all the base stations report the interference of the cell, the cell neighbor relationship, and the interference information between the cells to the interference avoidance device.
  • the interference avoiding device acquires the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area.
  • some resources referring to resources in time
  • another part of resources can be unicast.
  • all resources can only be used for unicast.
  • the interference information of the small interval may refer to: the number of times of switching between each cell and other cells within a preset time.
  • the terminal accessing the cell will switch to other cells, so the more the number of handovers between the two cells, the greater the interference between the two cells.
  • the interference avoidance device can determine the interference degree between any two cells according to the handover number information between each cell and other cells.
  • the interference avoiding device may obtain a neighbor map of the cell neighbor relationship according to the cell list reported by each base station and the neighbor relationship information of the cell, and combine the information of the preset cell and the MBSFN area (ie, which cells belong to the MBSFN area) and the interference between the cells.
  • the information can determine the reserved cells in the MBSFN area, and the determined reserved cells can be as shown in FIG.
  • the reserved cell refers to a cell that is located in the MBSFN area and that is adjacent to the non-MBSFN area and that is adjacent to the non-MBSFN area and whose interference is greater than the preset interference threshold.
  • Send a first session indication to the base station of the reserved cell where the first session indication is used to indicate the base station of the reserved cell: for the reserved cell, the eMBMS service is not performed on the time-frequency resource occupied by the broadcast transmission cell, or the used less than the preset power is used. Power is used for unicast services.
  • the interference avoiding device may send a notification message to the base station of the reserved cell through the preset interface, and the notification message is used to notify the protection.
  • Base station of the reserved cell Which cells in the coverage of the base station of the reserved cell belong to the reserved cell.
  • the interference avoiding device may further send a third session indication time-frequency resource allocation information to the base station of the broadcast transmission cell, where the third session indicates that the time-frequency resource allocation information is used to indicate the base station of the broadcast transmission cell: the time-frequency resource is indicated according to the third session.
  • the allocation information allocates time-frequency resources for the broadcast transmission cell.
  • the interference avoidance device may also send a fourth session indication to the base station of the non-MBSFN area, where the fourth session indication is used to indicate the base station of the non-MBSFN area: the unicast service is not performed on the time-frequency resource occupied by the broadcast transmission cell.
  • the interference avoidance device acquires the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area; according to the cell list, the cell neighbor relationship, and the inter-cell
  • the interference information is determined by combining the preset cell with the affiliation information of the MBSFN area to determine the reserved cell, that is, the automatic identification of the reserved cell is implemented; after receiving the eMBMS session request sent by the MME, the first session indication is sent to the base station of the reserved cell, A session indicator is used to indicate the base station of the reserved cell: for the reserved cell, the eMBMS service is not performed on the time-frequency resource occupied by the broadcast transmission cell, or the unicast service is performed using the power less than the preset power, that is, the interference is reduced, and the MBSFN is guaranteed.
  • the eMBMS service in the area and the unicast service in the non-MBSFN area can be performed normally.
  • another embodiment of the interference avoiding method of the present invention includes:
  • all the base stations report the neighboring cell and cell neighbor relationship information to the interference avoiding device.
  • the interference avoidance device acquires the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area through the preset interface.
  • some resources referring to resources in time
  • another part of resources can be unicast.
  • all resources can only be used for unicast.
  • the interference information of the small interval may refer to: the number of times of switching between each cell and other cells within a preset time.
  • the terminal accessing the cell will switch to other cells, so the more the number of handovers between the two cells, the greater the interference between the two cells.
  • the interference avoiding device can determine the between the two cells according to the number of times of switching between each cell and other cells. The degree of disturbance.
  • the interference avoiding device may obtain a neighbor map of the cell neighbor relationship according to the cell list reported by each base station and the neighbor relationship information of the cell, and combine the information of the preset cell and the MBSFN area (ie, which cells belong to the MBSFN area) and the interference between the cells.
  • the information can determine the boundary neighboring area of the MBSFN area, and the border neighboring area refers to a cell located in the non-MBSFN area, and the interference between the cell adjacent to the MBSFN area and the neighboring cell in the MBSFN area is greater than the preset interference threshold.
  • the determined boundary neighboring cell may be as shown in FIG. 4b, and other cells in the non-MBSFN area except the border neighboring cell are unicast transmission cells.
  • the unicast service is not performed on the broadcast time-frequency resource occupied by the cell in the MBSFN area. Or use a power less than the preset power for unicast service.
  • the interference avoiding device may send a notification message to the base station of the border neighboring area through the preset interface, where the notification message is used to notify the base station of the border neighboring area: the base station of the border neighboring area Which cells in the coverage area belong to the border neighborhood.
  • the interference avoidance device may further send a fifth session indication time-frequency resource allocation information to the base station in the MBSFN area, where the fifth session indicates that the time-frequency resource allocation information is used to indicate the base station in the MBSFN area: the time-frequency resource is indicated according to the fifth session.
  • the allocation information allocates time-frequency resources to cells in the MBSFN area.
  • the interference avoidance device may further send a sixth session indication by the base station in the unicast transmission cell, where the sixth session indication is used to indicate that the base station in the unicast transmission cell does not perform unicast on the broadcast time-frequency resource occupied by the cell in the MBSFN area. business.
  • the interference avoidance device acquires the cell list, the cell neighbor relationship, and the inter-cell interference information reported by the base station in the MBSFN area and the base station in the non-MBSFN area; according to the cell list, the cell neighbor relationship, and the inter-cell The interference information is used to determine the border neighboring area of the MBSFN area in combination with the affiliation information of the preset cell and the MBSFN area, that is, the automatic identification of the border neighboring area is realized; after receiving the eMBMS session request sent by the MME, sending to the base station of the border neighboring area Second session indication, second The session indication is used to indicate the base station of the border neighboring area: for the border neighboring area, the unicast service is not performed on the broadcast time-frequency resource occupied by the cell in the MBSFN area, or the unicast service is performed using the power less than the preset power, that is, the unicast service is reduced.
  • the interference ensures that the eMBMS service in the MBSFN area and the unicast service in the non-
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be Physical units can be located in one place or distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the connection relationship between the modules indicates that there is a communication connection between them, and specifically, one or more communication buses or signal lines can be realized.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, dedicated hardware, dedicated CPU, dedicated memory, dedicated memory, Special components and so on.
  • functions performed by computer programs can be easily implemented with the corresponding hardware, and the specific hardware structure used to implement the same function can be various, such as analog circuits, digital circuits, or dedicated circuits. Circuits, etc.
  • software program implementation is a better implementation in more cases.
  • the technical solution of the present invention which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • U disk mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., including a number of instructions to make a computer device (may be A personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.
  • a computer device may be A personal computer, server, or network device, etc.

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Abstract

本发明实施例公开了一种干扰规避方法及装置，干扰规避方法包括：获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域内的保留小区，MBSFN区域内除保留小区以外的其他小区为广播传输小区；接收MME发送的eMBMS会话请求；向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。本发明实施例能够自动识别保留小区，降低干扰。

Description

一种干扰规避方法及装置
本申请要求于2015年3月31日提交中国专利局、申请号为201510149183.8、发明名称为“一种干扰规避方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体涉及一种干扰规避方法及装置。
背景技术
传统技术中，无线接入网提供点对点的单播承载服务，支持文件下载、流传输等上层用户业务，而单播承载服务无法共享接入网的无线和传输资源。随着智能手机用户的快速发展，移动视频业务、应用商店下载产生的流量在快速递增，即使是长期演进(Long Term Evolution，LTE)网络也不可避免地产生拥塞的风险，一方面使得用户的业务体验出现了下降，另一方面运营商面临着增量不增收的窘境。基于这个原因，在移动网络上引入了多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)，通过共享无线和传输资源，以点对多点的方式传输一些兴趣度集中的用户业务，例如：重大赛事视频的直播、热点新闻的推送等，在降低网络负载的同时，提高用户的业务体验；另一方面，为运营商减少设备投资、发掘新的商业模式、增加收入提供了机会。
经过长期的发展，MBMS已无法满足日益增长的业务需求，于是出现了增强型MBMS(enhanced MBMS，eMBMS)。eMBMS的前身是MBMS，eMBMS作为MBMS在LTE网络上的演进，取消了面向用户的组播功能，基于单频网(Single Frequency Network，SFN)技术在空口进行广播。eMBMS中有如下几个基本概念：
eMBMS会话(eMBMS Session)：是在一段时间内持续的广播业务，与实际的广播业务一一对应。
多播/组播单频网络(Multimedia Broadcast multicast service Single Frequency Network，MBSFN)同步区域：是指有能力进行MBSFN传输的区域，该区域内的所有eNodeB能够被同步并进行MBSFN传输；
MBSFN区域：是MBSFN同步区域中的一组小区。这组小区通过协调实现了MBSFN传输，使用相同的空口资源分配和传输相同的MBMS业务/会话。
在MBSFN区域，从终端接收看来，来自多个小区的MBSFN小区信号好像来自一个小区，多小区信号合并可获得较大的MBSFN增益。而对于非MBSFN区域内与MBSFN区域相接壤的单播小区，由于相邻的MBSFN区在MBSFN时频资源上持续进行下行发射，因此该单播小区会比其他常规的单播邻区受到的干扰更大，所以需要设置MBSFN区保留小区(MBSFN Area Reserved Cell)，用于时频资源的空间隔离，在MBSFN区域内设置的保留小区如图1所示。
第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)协议中对MBSFN区保留小区的定义：在MBSFN区域中不进行eMBMS业务的小区，或者在用于MBSFN传输的时频资源上使用受限功率进行单播业务的小区。保留小区主要用于控制广播小区对单播邻区的干扰。目前技术中，需要人工识别保留小区，人工识别保留小区需要知道邻区关系，提前做复杂的网络规划且很可能存在漏识别的情况，且当有多个MBSFN区时，保留小区的人工识别更加复杂。
发明内容
有鉴于此，本发明提供了一种干扰规避方法及装置，能够自动识别保留小区，降低干扰。
第一方面，本发明实施例提供的干扰规避装置，包括：
第一获取单元，用于获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
第一确定单元，用于根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域内的保留小区，所述MBSFN区域内除所述保留小区以外的其他小区为广播传输小区；
第一接收单元，用于接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
第一发送单元，用于向所述保留小区的基站发送第一会话指示，所述第一 会话指示用于指示所述保留小区的基站：针对所述保留小区，在所述广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
结合第一方面，在第一方面的第一种实施方式中，所述第一发送单元还用于，在向所述保留小区的基站发送第一会话指示之前，通过预设接口向所述保留小区的基站发送通知消息，所述通知消息用于通知所述保留小区的基站：所述保留小区的基站的覆盖范围内哪些小区属于保留小区；
所述预设接口包括标准接口和/或私有接口。
结合第一方面的第一种实施方式，在第一方面的第二种实施方式中，所述第一获取单元具体用于，通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
结合第一方面，或第一方面的第一种实施方式，或第一方面的第二种实施方式，在第一方面的第三种实施方式中，所述保留小区指的是：位于所述MBSFN区域内，与所述非MBSFN区域相邻且与所述非MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
第二方面，本发明实施例提供的干扰规避装置，包括：
第二获取单元，用于获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
第二确定单元，用于根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域的边界邻区；
第二接收单元，用于接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
第二发送单元，用于向所述边界邻区的基站发送第二会话指示，所述第二会话指示用于指示所述边界邻区的基站：针对所述边界邻区，在所述MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
结合第二方面，在第二方面的第一种实施方式中，所述第二发送单元还用 于，在向所述边界邻区的基站发送第二会话指示之前，通过预设接口向所述边界邻区的基站发送通知消息，所述通知消息用于通知所述边界邻区的基站：所述边界邻区的基站的覆盖范围内哪些小区属于边界邻区；
所述预设接口包括标准接口和/或私有接口。
结合第二方面的第一种实施方式，在第二方面的第二种实施方式中，所述第二获取单元具体用于，通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
结合第二方面，或第二方面的第一种实施方式，或第二方面的第二种实施方式，在第二方面的第三种实施方式中，所述边界邻区指的是：位于所述非MBSFN区域内，与所述MBSFN区域相邻且与所述MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
第三方面，本发明实施例提供的干扰规避方法，包括：
获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域内的保留小区，所述MBSFN区域内除所述保留小区以外的其他小区为广播传输小区；
接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
向所述保留小区的基站发送第一会话指示，所述第一会话指示用于指示所述保留小区的基站：针对所述保留小区，在所述广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
结合第三方面，在第三方面的第一种实施方式中，在向所述保留小区的基站发送第一会话指示之前，还包括，
通过预设接口向所述保留小区的基站发送通知消息，所述通知消息用于通知所述保留小区的基站：所述保留小区的基站的覆盖范围内哪些小区属于保留小区；
所述预设接口包括标准接口和/或私有接口。
结合第三方面的第一种实施方式，在第三方面的第二种实施方式中，所述获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表及小区邻区关系信息包括：
通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
结合第三方面，或第三方面的第一种实施方式，或第三方面的第二种实施方式，在第三方面的第三种实施方式中，所述保留小区指的是：位于所述MBSFN区域内，与所述非MBSFN区域相邻且与所述非MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
第四方面，本发明实施例提供的干扰规避方法，包括：
获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域的边界邻区；
接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
向所述边界邻区的基站发送第二会话指示，所述第二会话指示用于指示所述边界邻区的基站：针对所述边界邻区，在所述MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
结合第四方面，在第四方面的第一种实施方式中，在向所述边界邻区的基站发送第二会话指示之前，还包括：
通过预设接口向所述边界邻区的基站发送通知消息，所述通知消息用于通知所述边界邻区的基站：所述边界邻区的基站的覆盖范围内哪些小区属于边界邻区；
所述预设接口包括标准接口和/或私有接口。
结合第四方面的第一种实施方式，在第四方面的第二种实施方式中，所述获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表及小区邻区关系信息包括：
通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域 内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
结合第四方面，或第四方面的第一种实施方式，或第四方面的第二种实施方式，在第四方面的第三种实施方式中，所述边界邻区指的是：位于所述非MBSFN区域内，与所述MBSFN区域相邻且与所述MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
本发明实施例中，会获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定保留小区，即实现了自动识别保留小区；当接收到MME发送的eMBMS会话请求后，向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务，即降低了干扰，保证了MBSFN区域的eMBMS业务以及非MBSFN区域的单播业务都能够正常进行。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，还可以如这些附图获得其他的附图。
图1是现有技术中保留小区一个实施例示意图；
图2是本发明干扰规避装置一个实施例示意图；
图3是本发明干扰规避装置另一实施例示意图；
图4a是本发明干扰规避装置另一实施例示意图；
图4b是本发明边界邻区一个实施例示意图；
图5是本发明干扰规避装置另一实施例示意图；
图6是本发明干扰规避方法一个实施例示意图；
图7是本发明干扰规避方法另一实施例示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员所获得的所有其他实施例，都属于本发明保护的范围。
本发明提供了一种干扰规避方法及装置，能够自动识别保留小区，降低干扰。本发明实施例提供的干扰规避装置可以是具备多小区/多播协调实体(Multi-cell/multicast Coordination Entity，MCE)功能的功能实体，MCE具有eMBMS会话的准入控制、基站的MBSFN时频资源预留等控制面功能。
请参阅图2，本发明干扰规避装置一个实施例包括：
第一获取单元201，用于获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
第一确定单元202，用于根据第一获取单元201获取的小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域内的保留小区，MBSFN区域内除保留小区以外的其他小区为广播传输小区；
第一接收单元203，用于接收MME发送的eMBMS会话请求；
第一发送单元204，用于向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
具体实现中，即所有的基站均向干扰规避装置上报各自覆盖下的小区、小区邻区关系及小区间的干扰信息。第一获取单元201通过预设接口获取MBSFN区域内的基站及非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。预设接口包括标准接口和/或私有接口，标准接口可以是现有通信协议中已规定的接口，私有接口可以是一些新增的用于从基站获取各类信息的接口。在MBSFN区域内，一部分资源(指时间上的资源)可以进行广播，另一部分资源可以进行单播。在非MBSFN区域内，所有资源只可以用于单播。
小区间的干扰信息可以指：在预置时间内各个小区与其他小区之间的切换次数信息。当某个小区的信号不好时，接入该小区的终端就会切换到其他小区， 因而两个小区之间的切换次数越多，说明两个小区之间的干扰越大。基站向干扰规避装置上报各个小区与其他小区之间的切换次数信息后，第一确定单元202即可根据各个小区与其他小区之间的切换次数信息确定任意两个小区之间的干扰程度。
第一确定单元202根据第一获取单元201获取的小区列表、小区邻区关系信息可得到小区邻区关系拓扑图，结合预置的小区与MBSFN区域的归属关系(即哪些小区属于MBSFN区域)信息及小区间的干扰信息即可确定MBSFN区域内的保留小区，所确定的保留小区可如图1所示。保留小区指的是：位于MBSFN区域内，与非MBSFN区域相邻且与非MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
当需要进行eMBMS会话时，第一接收单元203可接收MME发送的eMBMS会话请求。对于MBSFN区域，由于一个基站的覆盖范围内，可能既有保留小区，又有广播传输小区。因此，第一发送单元204可通过预设接口向保留小区的基站发送通知消息，通知消息用于通知保留小区的基站：保留小区的基站的覆盖范围内哪些小区属于保留小区。然后，第一发送单元204向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
另外，第一发送单元204还可以向广播传输小区的基站发送第三会话指示及时频资源分配信息，第三会话指示及时频资源分配信息用于指示广播传输小区的基站：根据第三会话指示及时频资源分配信息为广播传输小区分配时频资源。
第一发送单元204还可以向非MBSFN区域的基站发送第四会话指示，第四会话指示用于指示非MBSFN区域的基站：在广播传输小区占用的时频资源上不进行单播业务。
本实施例中，第一获取单元会获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；第一确定单元根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定保留小区，即实现了自动识别保留小区；当第一接收 单元接收到MME发送的eMBMS会话请求后，第一发送单元向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务，即降低了干扰，保证了MBSFN区域的eMBMS业务以及非MBSFN区域的单播业务都能够正常进行。
请参阅图3，本发明干扰规避装置另一个实施例包括第一存储器301、第一处理器302及第一收发器303。第一存储器301用于存储一组程序指令，第一处理器302用于调用第一存储器301存储的程序指令以执行如下操作：
通过第一收发器303获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域内的保留小区，MBSFN区域内除保留小区以外的其他小区为广播传输小区；
通过第一收发器303接收MME发送的eMBMS会话请求，并通过第一收发器303向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
另外，本实施例提供的干扰规避装置300，还可以用于实现上述装置实施例中的其它功能，在此不再赘述。
下面请参阅图4，本发明干扰规避装置另一个实施例包括：
第二获取单元401，用于获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
第二确定单元402，用于根据第二获取单元401获取的小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域的边界邻区；
第二接收单元403，用于接收MME发送的eMBMS会话请求；
第二发送单元404，用于向边界邻区的基站发送第二会话指示，第二会话指示用于指示边界邻区的基站：针对边界邻区，在MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
具体实现中，第二获取单元401可通过预设接口获取MBSFN区域内的基站及非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。预设接口包括标准接口和/或私有接口，标准接口可以是现有通信协议中已规定的接口，私有接口可以是一些新增的用于从基站获取各类信息的接口。
小区间的干扰信息可以指：在预置时间内各个小区与其他小区之间的切换次数信息。当某个小区的信号不好时，接入该小区的终端就会切换到其他小区，因而两个小区之间的切换次数越多，说明两个小区之间的干扰越大。基站向干扰规避装置上报各个小区与其他小区之间的切换次数信息后，第二确定单元402即可根据各个小区与其他小区之间的切换次数信息确定任意两个小区之间的干扰程度。
第二确定单元402根据第二获取单元401获取的小区列表、小区邻区关系及小区间的干扰信息可得到小区邻区关系拓扑图，结合预置的小区与MBSFN区域的归属关系(即哪些小区属于MBSFN区域)信息及小区间的干扰信息即可确定MBSFN区域的边界邻区，边界邻区指的是：位于非MBSFN区域内，与MBSFN区域相邻且与MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区，所确定的边界邻区可如图4b所示，非MBSFN区域内除边界邻区以外的其他小区为单播传输小区。
当需要进行eMBMS会话时，第二接收单元403可接收MME发送的eMBMS会话请求。对于非MBSFN区域，由于一个基站的覆盖范围内，可能既有边界邻区，又有单播传输小区。因此，第二发送单元404可先通过预设接口向边界邻区的基站发送通知消息，通知消息用于通知边界邻区的基站：边界邻区的基站的覆盖范围内哪些小区属于边界邻区。然后，第二发送单元404向边界邻区的基站发送第二会话指示，第二会话指示用于指示边界邻区的基站：针对边界邻区，在MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
另外，第二发送单元404还可以向MBSFN区域内的基站发送第五会话指示及时频资源分配信息，第五会话指示及时频资源分配信息用于指示MBSFN区域内的基站：根据第五会话指示及时频资源分配信息为MBSFN区域内的小区分配时频资源。
第二发送单元404还可以单播传输小区内的基站发送第六会话指示，第六会话指示用于指示单播传输小区内的基站：在MBSFN区域内的小区占用的广播时频资源上不进行单播业务。
本实施例中，第二获取单元会获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；第二确定单元根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域的边界邻区，即实现了自动识别边界邻区；当第二接收单元接收到MME发送的eMBMS会话请求后，第二发送单元向边界邻区的基站发送第二会话指示，第二会话指示用于指示边界邻区的基站：针对边界邻区，在MBSFN区域内的小区占用的广播时频资源上不进行单播务或使用小于预设功率的功率进行单播业务，即降低了干扰，保证了MBSFN区域的eMBMS业务以及非MBSFN区域的单播业务都能够正常进行。
请参阅图5，本发明干扰规避装置另一个实施例包括第二存储器501、第二处理器502及第二收发器503。第二存储器501用于存储一组程序指令，第二处理器502用于调用第二存储器501存储的程序指令以执行如下操作：
通过第二收发器503获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域的边界邻区，边界邻区指的是位于非MBSFN区域内且与MBSFN区域相邻的小区；
通过第二收发器503接收MME发送的eMBMS会话请求，并通过第二收发器503向边界邻区的基站发送第二会话指示，第二会话指示用于指示边界邻区的基站：针对边界邻区，在MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
另外，本实施例提供的干扰规避装置500，还可以用于实现上述装置实施例中的其它功能，在此不再赘述。
下面介绍本发明实施例提供的干扰规避方法，请参阅图6，本实施例的方法包括：
601、获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列 表、小区邻区关系及小区间的干扰信息；
具体实现中，即所有的基站均向干扰规避装置上报各自覆盖下的小区、小区邻区关系及小区间的干扰信息。干扰规避装置通预设接口获取MBSFN区域内的基站及非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。在MBSFN区域内，一部分资源(指时间上的资源)可以进行广播，另一部分资源可以进行单播。在非MBSFN区域内，所有资源只可以用于单播。
小区间的干扰信息可以指：在预置时间内各个小区与其他小区之间的切换次数信息。当某个小区的信号不好时，接入该小区的终端就会切换到其他小区，因而两个小区之间的切换次数越多，说明两个小区之间的干扰越大。基站向干扰规避装置上报各个小区与其他小区之间的切换次数信息后，干扰规避装置即可根据各个小区与其他小区之间的切换次数信息确定任意两个小区之间的干扰程度。
602、根据所获取的小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域内的保留小区，MBSFN区域内除保留小区以外的其他小区为广播传输小区；
干扰规避装置根据各个基站上报的小区列表及小区邻区关系信息可得到小区邻区关系拓扑图，结合预置的小区与MBSFN区域的归属关系(即哪些小区属于MBSFN区域)信息及小区间的干扰信息即可确定MBSFN区域内的保留小区，所确定的保留小区可如图1所示。保留小区指的是：位于MBSFN区域内，与非MBSFN区域相邻且与非MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
603、接收MME发送的eMBMS会话请求；
604、向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
对于MBSFN区域，由于一个基站的覆盖范围内，可能既有保留小区，又有广播传输小区。因此，在向保留小区的基站发送第一会话指示之前，干扰规避装置可通过预设接口向保留小区的基站发送通知消息，通知消息用于通知保 留小区的基站：保留小区的基站的覆盖范围内哪些小区属于保留小区。
另外，干扰规避装置还可以向广播传输小区的基站发送第三会话指示及时频资源分配信息，第三会话指示及时频资源分配信息用于指示广播传输小区的基站：根据第三会话指示及时频资源分配信息为广播传输小区分配时频资源。
干扰规避装置还可以向非MBSFN区域的基站发送第四会话指示，第四会话指示用于指示非MBSFN区域的基站：在广播传输小区占用的时频资源上不进行单播业务。
本实施例中，干扰规避装置会获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定保留小区，即实现了自动识别保留小区；当接收到MME发送的eMBMS会话请求后，向保留小区的基站发送第一会话指示，第一会话指示用于指示保留小区的基站：针对保留小区，在广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务，即降低了干扰，保证了MBSFN区域的eMBMS业务以及非MBSFN区域的单播业务都能够正常进行。
请参阅图7，本发明干扰规避方法另一实施例包括：
701、获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
具体实现中，即所有的基站均向干扰规避装置上报各自覆盖下的小区及小区邻区关系信息。干扰规避装置通过预设接口获取MBSFN区域内的基站及非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。在MBSFN区域内，一部分资源(指时间上的资源)可以进行广播，另一部分资源可以进行单播。在非MBSFN区域内，所有资源只可以用于单播。
小区间的干扰信息可以指：在预置时间内各个小区与其他小区之间的切换次数信息。当某个小区的信号不好时，接入该小区的终端就会切换到其他小区，因而两个小区之间的切换次数越多，说明两个小区之间的干扰越大。基站向干扰规避装置上报各个小区与其他小区之间的切换次数信息后，干扰规避装置即可根据各个小区与其他小区之间的切换次数信息确定任意两个小区之间的干 扰程度。
702、根据所获取的小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域的边界邻区；
干扰规避装置根据各个基站上报的小区列表及小区邻区关系信息可得到小区邻区关系拓扑图，结合预置的小区与MBSFN区域的归属关系(即哪些小区属于MBSFN区域)信息及小区间的干扰信息即可确定MBSFN区域的边界邻区，边界邻区指的是：位于非MBSFN区域内，与MBSFN区域相邻且与MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区，所确定的边界邻区可如图4b所示，非MBSFN区域内除边界邻区以外的其他小区为单播传输小区。
703、接收MME发送的eMBMS会话请求；
704、向边界邻区的基站发送第二会话指示，第二会话指示用于指示边界邻区的基站：针对边界邻区，在MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
对于非MBSFN区域，由于一个基站的覆盖范围内，可能既有边界邻区，又有单播传输小区。因此，在向边界邻区的基站发送第二会话指示之前，干扰规避装置可通过预设接口向边界邻区的基站发送通知消息，通知消息用于通知边界邻区的基站：边界邻区的基站的覆盖范围内哪些小区属于边界邻区。
另外，干扰规避装置还可以向MBSFN区域内的基站发送第五会话指示及时频资源分配信息，第五会话指示及时频资源分配信息用于指示MBSFN区域内的基站：根据第五会话指示及时频资源分配信息为MBSFN区域内的小区分配时频资源。
干扰规避装置还可以单播传输小区内的基站发送第六会话指示，第六会话指示用于指示单播传输小区内的基站：在MBSFN区域内的小区占用的广播时频资源上不进行单播业务。
本实施例中，干扰规避装置会获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；根据小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与MBSFN区域的归属关系信息确定MBSFN区域的边界邻区，即实现了自动识别边界邻区；当接收到MME发送的eMBMS会话请求后，向边界邻区的基站发送第二会话指示，第二 会话指示用于指示边界邻区的基站：针对边界邻区，在MBSFN区域内的小区占用的广播时频资源上不进行单播务或使用小于预设功率的功率进行单播业务，即降低了干扰，保证了MBSFN区域的eMBMS业务以及非MBSFN区域的单播业务都能够正常进行。
另外需说明的是，以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外，本发明提供的装置实施例附图中，模块之间的连接关系表示它们之间具有通信连接，具体可以实现为一条或多条通信总线或信号线。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件的方式来实现，当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现。一般情况下，凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现，而且，用来实现同一功能的具体硬件结构也可以是多种多样的，例如模拟电路、数字电路或专用电路等。但是，对本发明而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘，U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
以上对本发明实施例所提供的一种干扰规避方法及装置进行了详细介绍，对于本领域的一般技术人员，依据本发明实施例的思想，在具体实施方式及应用范围上均会有改变之处，因此，本说明书内容不应理解为对本发明的限制。

Claims (16)

  1. 一种干扰规避装置，其特征在于，包括：
    第一获取单元，用于获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
    第一确定单元，用于根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域内的保留小区，所述MBSFN区域内除所述保留小区以外的其他小区为广播传输小区；
    第一接收单元，用于接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
    第一发送单元，用于向所述保留小区的基站发送第一会话指示，所述第一会话指示用于指示所述保留小区的基站：针对所述保留小区，在所述广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
  2. 如权利要求1所述的装置，其特征在于，所述第一发送单元还用于，
    在向所述保留小区的基站发送第一会话指示之前，通过预设接口向所述保留小区的基站发送通知消息，所述通知消息用于通知所述保留小区的基站：所述保留小区的基站的覆盖范围内哪些小区属于保留小区；
    所述预设接口包括标准接口和/或私有接口。
  3. 如权利要求2所述的装置，其特征在于，所述第一获取单元具体用于，
    通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
  4. 如权利要求1至3任意一项所述的装置，其特征在于，所述保留小区指的是：位于所述MBSFN区域内，与所述非MBSFN区域相邻且与所述非MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
  5. 一种干扰规避装置，其特征在于，包括：
    第二获取单元，用于获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
    第二确定单元，用于根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域的边界邻区；
    第二接收单元，用于接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
    第二发送单元，用于向所述边界邻区的基站发送第二会话指示，所述第二会话指示用于指示所述边界邻区的基站：针对所述边界邻区，在所述MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
  6. 如权利要求5所述的装置，其特征在于，所述第二发送单元还用于，
    在向所述边界邻区的基站发送第二会话指示之前，通过预设接口向所述边界邻区的基站发送通知消息，所述通知消息用于通知所述边界邻区的基站：所述边界邻区的基站的覆盖范围内哪些小区属于边界邻区；
    所述预设接口包括标准接口和/或私有接口。
  7. 如权利要求6所述的装置，其特征在于，所述第二获取单元具体用于，
    通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
  8. 如权利要求5至7任意一项所述的装置，其特征在于，所述边界邻区指的是：位于所述非MBSFN区域内，与所述MBSFN区域相邻且与所述MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
  9. 一种干扰规避方法，其特征在于，包括：
    获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
    根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域内的保留小区，所述MBSFN区域内除所述保留小区以外的其他小区为广播传输小区；
    接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
    向所述保留小区的基站发送第一会话指示，所述第一会话指示用于指示所 述保留小区的基站：针对所述保留小区，在所述广播传输小区占用的时频资源上不进行eMBMS业务或使用小于预设功率的功率进行单播业务。
  10. 如权利要求9所述的方法，其特征在于，在向所述保留小区的基站发送第一会话指示之前，还包括，
    通过预设接口向所述保留小区的基站发送通知消息，所述通知消息用于通知所述保留小区的基站：所述保留小区的基站的覆盖范围内哪些小区属于保留小区；
    所述预设接口包括标准接口和/或私有接口。
  11. 如权利要求10所述的方法，其特征在于，所述获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表及小区邻区关系信息包括：
    通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
  12. 如权利要求9至11任意一项所述的方法，其特征在于，所述保留小区指的是：位于所述MBSFN区域内，与所述非MBSFN区域相邻且与所述非MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
  13. 一种干扰规避方法，其特征在于，包括：
    获取多播/组播单频网络MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息；
    根据所述小区列表、小区邻区关系及小区间的干扰信息，结合预置的小区与所述MBSFN区域的归属关系信息确定所述MBSFN区域的边界邻区；
    接收移动管理实体MME发送的增强型多媒体广播多播业务eMBMS会话请求；
    向所述边界邻区的基站发送第二会话指示，所述第二会话指示用于指示所述边界邻区的基站：针对所述边界邻区，在所述MBSFN区域内的小区占用的广播时频资源上不进行单播业务或使用小于预设功率的功率进行单播业务。
  14. 如权利要求13所述的方法，其特征在于，在向所述边界邻区的基站发送第二会话指示之前，还包括：
    通过预设接口向所述边界邻区的基站发送通知消息，所述通知消息用于通知所述边界邻区的基站：所述边界邻区的基站的覆盖范围内哪些小区属于边界 邻区；
    所述预设接口包括标准接口和/或私有接口。
  15. 如权利要求14所述的方法，其特征在于，所述获取MBSFN区域内的基站与非MBSFN区域内的基站上报的小区列表及小区邻区关系信息包括：
    通过所述预设接口获取所述MBSFN区域内的基站及所述非MBSFN区域内的基站上报的小区列表、小区邻区关系及小区间的干扰信息。
  16. 如权利要求13至15任意一项所述的方法，其特征在于，所述边界邻区指的是：位于所述非MBSFN区域内，与所述MBSFN区域相邻且与所述MBSFN区域内相邻的小区之间的干扰大于预设干扰阈值的小区。
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