CN104869544A - Interference avoidance method and apparatus - Google Patents
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- CN104869544A CN104869544A CN201510149183.8A CN201510149183A CN104869544A CN 104869544 A CN104869544 A CN 104869544A CN 201510149183 A CN201510149183 A CN 201510149183A CN 104869544 A CN104869544 A CN 104869544A
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- 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
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Abstract
The embodiments of the invention disclose an interference avoidance method and apparatus. The interference avoidance method comprises: cell lists, relations between cells and neighboring cells, and interference information between cells that are reported by a base station in a multimedia broadcast multicast service single frequency network (MBSFN) area and a base station in a non-MBSFN area are obtained; according to the cell lists, relations between cells and neighboring cells, and interference information between cells, a reserved cell in the MBSFN area is determined by combining preset information of an ownership relation between cells and the MBSFN area, wherein other cells, except the reserved cell in the MBSFN area are broadcast transmission cells; an enhanced multimedia broadcast multicast server (eMBMS) session request sent by an MME is received; a first session instruction is sent to a base station of the reserved cell, wherein the first session instruction is used for indicating the base station of the reserved cell; and for the reserved cell, no eMBMS service is carried out at time-frequency resources occupied by the broadcast transmission cells or single-cast services are carried out by using a power less than a preset power. According to the embodiments of the invention, a reserved cell can be identified automatically, thereby reducing interference.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of interference bypassing method and device.
Background technology
In conventional art, wireless access network provides point-to-point unicast bearer service, upper-layer user's business such as supporting document download, flow transmission, and unicast bearer service cannot the wireless and transfer resource of share of access network.Along with the fast development of smart phone user, mobile video business, application shop are downloaded the flow produced and are being increased progressively fast, even Long Term Evolution (Long Term Evolution, LTE) network also inevitably produces congested risk, make the business experience of user occur decline on the one hand, operator is faced with the awkward situation of non-profit with the increased production on the other hand.Based on this reason, introduce multimedia broadcast multi-broadcasting business (Multimedia Broadcast Multicast Service over the mobile network, MBMS), by sharing wireless and transfer resource, the concentrated customer service of some interest-degrees is transmitted in the mode of point-to-multipoint, such as: the propelling movement etc. of live, the hot news of important sports events video, while reduction offered load, the business experience of user is improved; On the other hand, for operator reduce equipment investment, excavate new business model, increasing income provides chance.
Through long-term development, MBMS cannot meet growing business demand, so there is enhancement mode MBMS (enhanced MBMS, eMBMS).The predecessor of eMBMS be MBMS, eMBMS as MBMS evolution on an LTE network, eliminate user oriented multicast functionality, eating dishes without rice or wine to broadcast based on single frequency network (Single Frequency Network, SFN) technology.Following several basic conception is had in eMBMS:
EMBMS session (eMBMS Session): be the broadcasting service continued within a period of time, with the broadcasting service one_to_one corresponding of reality.
Multicast/multicast single-frequency network network (Multimedia Broadcast multicast service SingleFrequency Network, MBSFN) retaining zone: refer to the region of having the ability to carry out MBSFN transmission, all eNodeB in this region can by synchronous and carry out MBSFN transmission;
MBSFN region: be one group of community in MBSFN retaining zone.This group community achieves MBSFN transmission by coordination, uses identical interface-free resources distribute and transmit identical MBMS/session.
In MBSFN region, receive it seems from terminal, the MBSFN cell signal from multiple community seems from a community, and multi-cell signals merges can obtain larger MBSFN gain.And for the unicast cells be bordered with MBSFN region in non-MBSFN region, because adjacent MBSFN district continues to carry out downlink on MBSFN running time-frequency resource, therefore the interference that can be subject to than the clean culture adjacent area of other routines of this unicast cells is larger, so need to arrange MBSFN block reservation community (MBSFN Area Reserved Cell), space for running time-frequency resource isolates, and the reservation community arranged in MBSFN region as shown in Figure 1.
Third generation partner program (3rd Generation Partnership Project, 3GPP) in agreement to the definition of MBSFN block reservation community: the community of not carrying out eMBMS business in MBSFN region, or use limited power to carry out the community of unicast service on the running time-frequency resource transmitted for MBSFN.Retain community to be mainly used in controlling broadcast cell to the interference of clean culture adjacent area.In current technology, need manual identified to retain community, manual identified retains community and needs to know neighboring BS relationship, does the complicated network planning in advance and probably there is the situation of leaking and identifying, and when there being multiple MBSFN district, the manual identified retaining community is more complicated.
Summary of the invention
In view of this, the invention provides a kind of interference bypassing method and device, automatically can identify and retain community, reduce interference.
First aspect, the interference circumvention device that the embodiment of the present invention provides, comprising:
First acquiring unit, for obtaining the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
First determining unit, for the interfere information according to described cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and described MBSFN region determines the reservation community in described MBSFN region, and other communities in described MBSFN region except described reservation community are broadcasting transmitting community;
First receiving element, for receiving the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
First transmitting element, for sending the first session instruction to the base station of described reservation community, described first session instruction is used to indicate the base station of described reservation community: for described reservation community, the running time-frequency resource that described broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
In conjunction with first aspect, in the first execution mode of first aspect, described first transmitting element also for, before send the first session instruction to the base station of described reservation community, sent a notification message by the base station of preset interface to described reservation community, described notification message is for notifying the base station of described reservation community: in the coverage of the base station of described reservation community, which community belongs to and retains community;
Described preset interface comprises standard interface and/or privately owned interface.
In conjunction with the first execution mode of first aspect, in the second execution mode of first aspect, described first acquiring unit specifically for, obtained the interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone by described preset interface.
In conjunction with first aspect, or the first execution mode of first aspect, or the second execution mode of first aspect, in the third execution mode of first aspect, described reservation community refers to: be positioned at described MBSFN region, adjacent with described non-MBSFN region and and interference between community adjacent in described non-MBSFN region be greater than the community of default interference threshold.
Second aspect, the interference circumvention device that the embodiment of the present invention provides, comprising:
Second acquisition unit, for obtaining the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
Second determining unit, for the interfere information according to described cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and described MBSFN region determines the adjacent area, border in described MBSFN region;
Second receiving element, for receiving the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
Second transmitting element, for sending the second session instruction to the base station of adjacent area, described border, described second session instruction is used to indicate the base station of adjacent area, described border: for adjacent area, described border, the broadcast running time-frequency resource that the community in described MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
In conjunction with second aspect, in the first execution mode of second aspect, described second transmitting element also for, before send the second session instruction to the base station of adjacent area, described border, sent a notification message by the base station of preset interface to adjacent area, described border, described notification message is for notifying the base station of adjacent area, described border: in the coverage of the base station of adjacent area, described border, which community belongs to adjacent area, border;
Described preset interface comprises standard interface and/or privately owned interface.
In conjunction with the first execution mode of second aspect, in the second execution mode of second aspect, described second acquisition unit specifically for, obtained the interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone by described preset interface.
In conjunction with second aspect, or the first execution mode of second aspect, or the second execution mode of second aspect, in the third execution mode of second aspect, adjacent area, described border refers to: be positioned at described non-MBSFN region, adjacent with described MBSFN region and and interference between community adjacent in described MBSFN region be greater than the community of default interference threshold.
The third aspect, the interference bypassing method that the embodiment of the present invention provides, comprising:
Obtain the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
According to the interfere information of described cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and described MBSFN region determines the reservation community in described MBSFN region, and other communities in described MBSFN region except described reservation community are broadcasting transmitting community;
Receive the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
Base station to described reservation community sends the first session instruction, described first session instruction is used to indicate the base station of described reservation community: for described reservation community, the running time-frequency resource that described broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
In conjunction with the third aspect, in the first execution mode of the third aspect, before send the first session instruction to the base station of described reservation community, also comprise,
Sent a notification message by the base station of preset interface to described reservation community, described notification message is for notifying the base station of described reservation community: in the coverage of the base station of described reservation community, which community belongs to and retains community;
Described preset interface comprises standard interface and/or privately owned interface.
In conjunction with the first execution mode of the third aspect, in the second execution mode of the third aspect, the cell list that the base station in described acquisition MBSFN region and the base station in non-MBSFN region report and community adjacent cell relation information comprise:
The interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone is obtained by described preset interface.
In conjunction with the third aspect, or the first execution mode of the third aspect, or the second execution mode of the third aspect, in the third execution mode of the third aspect, described reservation community refers to: be positioned at described MBSFN region, adjacent with described non-MBSFN region and and interference between community adjacent in described non-MBSFN region be greater than the community of default interference threshold.
Fourth aspect, the interference bypassing method that the embodiment of the present invention provides, comprising:
Obtain the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
According to the interfere information of described cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and described MBSFN region determines the adjacent area, border in described MBSFN region;
Receive the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
Base station to adjacent area, described border sends the second session instruction, described second session instruction is used to indicate the base station of adjacent area, described border: for adjacent area, described border, the broadcast running time-frequency resource that the community in described MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
In conjunction with fourth aspect, in the first execution mode of fourth aspect, before send the second session instruction to the base station of adjacent area, described border, also comprise:
Sent a notification message by the base station of preset interface to adjacent area, described border, described notification message is for notifying the base station of adjacent area, described border: in the coverage of the base station of adjacent area, described border, which community belongs to adjacent area, border;
Described preset interface comprises standard interface and/or privately owned interface.
In conjunction with the first execution mode of fourth aspect, in the second execution mode of fourth aspect, the cell list that the base station in described acquisition MBSFN region and the base station in non-MBSFN region report and community adjacent cell relation information comprise:
The interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone is obtained by described preset interface.
In conjunction with fourth aspect, or the first execution mode of fourth aspect, or the second execution mode of fourth aspect, in the third execution mode of fourth aspect, adjacent area, described border refers to: be positioned at described non-MBSFN region, adjacent with described MBSFN region and and interference between community adjacent in described MBSFN region be greater than the community of default interference threshold.
In the embodiment of the present invention, the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone can be obtained; According to the interfere information of cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and MBSFN region is determined to retain community, namely achieves automatically to identify and retain community; When after the eMBMS session request receiving MME transmission, the first session instruction is sent to the base station retaining community, first session instruction is used to indicate the base station retaining community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service, namely reduce interference, ensure that the eMBMS business in MBSFN region and the unicast service in non-MBSFN region can both normally carry out.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing the embodiment of the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, other accompanying drawing can also be obtained as these accompanying drawings.
Fig. 1 retains one, community embodiment schematic diagram in prior art;
Fig. 2 is that the present invention disturbs circumvention device embodiment schematic diagram;
Fig. 3 is that the present invention disturbs another embodiment schematic diagram of circumvention device;
Fig. 4 a is that the present invention disturbs another embodiment schematic diagram of circumvention device;
Fig. 4 b is one, adjacent area, border of the present invention embodiment schematic diagram;
Fig. 5 is that the present invention disturbs another embodiment schematic diagram of circumvention device;
Fig. 6 is that the present invention disturbs bypassing method embodiment schematic diagram;
Fig. 7 is that the present invention disturbs another embodiment schematic diagram of bypassing method.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtain, all belongs to the scope of protection of the invention.
The invention provides a kind of interference bypassing method and device, automatically can identify and retain community, reduce interference.The interference circumvention device that the embodiment of the present invention provides can be possess multiple cell/multicast coordination entity (Multi-cell/multicast Coordination Entity, MCE) functional entity of function, the chain of command functions such as MCE has the access control of eMBMS session, the MBSFN running time-frequency resource of base station is reserved.
Refer to Fig. 2, the present invention disturbs circumvention device embodiment to comprise:
First acquiring unit 201, for obtaining the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
First determining unit 202, for obtain according to the first acquiring unit 201 cell list, community neighboring BS relationship and minizone interfere information, attaching relation information in conjunction with preset community and MBSFN region determines the reservation community in MBSFN region, and other communities in MBSFN region except retaining community are broadcasting transmitting community;
First receiving element 203, for receiving the eMBMS session request that MME sends;
First transmitting element 204, for sending the first session instruction to the base station retaining community, first session instruction is used to indicate and retains the base station of community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
In specific implementation, namely all base stations all report the interfere information of the community under covering separately, community neighboring BS relationship and minizone to interference circumvention device.First acquiring unit 201 obtains the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone by preset interface.Preset interface comprises standard interface and/or privately owned interface, and standard interface can be the interface specified in existing communication agreement, and privately owned interface can be some newly-increased interfaces for obtaining various information from base station.In MBSFN region, a part of resource (referring to temporal resource) can be broadcasted, and another part resource can carry out clean culture.In non-MBSFN region, all resources are only for clean culture.
The interfere information of minizone can refer to: the switching times information in preset time between each community and other communities.When the poor signal of certain community, the terminal accessing this community will be switched to other communities, and the switching times thus between Liang Ge community is more, illustrates that the interference between Liang Ge community is larger.After base station reports the switching times information between each community and other communities to interference circumvention device, the first determining unit 202 can determine the annoyance level between any Liang Ge community according to the switching times information between each community and other communities.
The cell list that first determining unit 202 obtains according to the first acquiring unit 201, community adjacent cell relation information can obtain community neighboring BS relationship topological diagram, can determine the reservation community in MBSFN region in conjunction with preset community and attaching relation (namely which community the belongs to MBSFN region) information in MBSFN region and the interfere information of minizone, determined reservation community can be as shown in Figure 1.Retain community to refer to: be positioned at MBSFN region, adjacent with non-MBSFN region and and interference between community adjacent in non-MBSFN region be greater than the community of default interference threshold.
When needs carry out eMBMS session, the first receiving element 203 can receive the eMBMS session request that MME sends.For MBSFN region, in the coverage due to a base station, there is again broadcasting transmitting community community of may both withing a hook at the end.Therefore, the first transmitting element 204 sends a notification message to the base station retaining community by preset interface, and notification message is for notifying the base station retaining community: coverage which community interior retaining the base station of community belongs to retains community.Then, first transmitting element 204 sends the first session instruction to the base station retaining community, first session instruction is used to indicate and retains the base station of community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
In addition, first transmitting element 204 can also send the 3rd session instruction and time-frequency resource allocation information to the base station of broadcasting transmitting community, and the 3rd session instruction and time-frequency resource allocation information are used to indicate the base station of broadcasting transmitting community: be broadcasting transmitting cell allocation running time-frequency resource according to the 3rd session instruction and time-frequency resource allocation information.
First transmitting element 204 can also send the 4th session instruction to the base station in non-MBSFN region, the 4th session instruction is used to indicate the base station in non-MBSFN region: on the running time-frequency resource that broadcasting transmitting community takies, do not carry out unicast service.
In the present embodiment, the first acquiring unit can obtain the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone; First determining unit is according to the interfere information of cell list, community neighboring BS relationship and minizone, and the attaching relation information in conjunction with preset community and MBSFN region is determined to retain community, namely achieves automatically to identify and retain community; After the first receiving element receives the eMBMS session request of MME transmission, first transmitting element sends the first session instruction to the base station retaining community, first session instruction is used to indicate the base station retaining community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service, namely reduce interference, ensure that the eMBMS business in MBSFN region and the unicast service in non-MBSFN region can both normally carry out.
Refer to Fig. 3, the present invention disturbs another embodiment of circumvention device to comprise first memory 301, first processor 302 and first transceiver 303.First memory 301 is for storing batch processing instruction, and first processor 302 is for calling the program command of first memory 301 storage to perform following operation:
The interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone is obtained by first transceiver 303;
According to the interfere information of cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and MBSFN region determines the reservation community in MBSFN region, and other communities in MBSFN region except retaining community are broadcasting transmitting community;
The eMBMS session request of MME transmission is received by first transceiver 303, and send the first session instruction by first transceiver 303 to the base station retaining community, first session instruction is used to indicate and retains the base station of community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
In addition, the interference circumvention device 300 that the present embodiment provides, can also be used for other function realized in said apparatus embodiment, not repeat them here.
Refer to Fig. 4 below, the present invention disturbs another embodiment of circumvention device to comprise:
Second acquisition unit 401, for obtaining the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
Second determining unit 402, for obtain according to second acquisition unit 401 cell list, community neighboring BS relationship and minizone interfere information, the attaching relation information in conjunction with preset community and MBSFN region determines the adjacent area, border in MBSFN region;
Second receiving element 403, for receiving the eMBMS session request that MME sends;
Second transmitting element 404, for sending the second session instruction to the base station of adjacent area, border, second session instruction is used to indicate the base station of adjacent area, border: for adjacent area, border, the broadcast running time-frequency resource that the community in MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
In specific implementation, second acquisition unit 401 obtains the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone by preset interface.Preset interface comprises standard interface and/or privately owned interface, and standard interface can be the interface specified in existing communication agreement, and privately owned interface can be some newly-increased interfaces for obtaining various information from base station.
The interfere information of minizone can refer to: the switching times information in preset time between each community and other communities.When the poor signal of certain community, the terminal accessing this community will be switched to other communities, and the switching times thus between Liang Ge community is more, illustrates that the interference between Liang Ge community is larger.After base station reports the switching times information between each community and other communities to interference circumvention device, the second determining unit 402 can determine the annoyance level between any Liang Ge community according to the switching times information between each community and other communities.
The cell list that second determining unit 402 obtains according to second acquisition unit 401, the interfere information of community neighboring BS relationship and minizone can obtain community neighboring BS relationship topological diagram, the adjacent area, border in MBSFN region can be determined in conjunction with preset community and attaching relation (namely which community the belongs to MBSFN region) information in MBSFN region and the interfere information of minizone, adjacent area, border refers to: be positioned at non-MBSFN region, adjacent with MBSFN region and and interference between community adjacent in MBSFN region be greater than the community of default interference threshold, adjacent area, determined border can be as shown in Figure 4 b, other communities in non-MBSFN region except adjacent area, border are unicast transmission community.
When needs carry out eMBMS session, the second receiving element 403 can receive the eMBMS session request that MME sends.For non-MBSFN region, in the coverage due to a base station, there is again unicast transmission community possibility adjacent area, existing border.Therefore, the second transmitting element 404 can first be sent a notification message by the base station of preset interface to adjacent area, border, and notification message is for notifying the base station of adjacent area, border: in the coverage of the base station of adjacent area, border, which community belongs to adjacent area, border.Then, second transmitting element 404 sends the second session instruction to the base station of adjacent area, border, second session instruction is used to indicate the base station of adjacent area, border: for adjacent area, border, the broadcast running time-frequency resource that the community in MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
In addition, second transmitting element 404 can also send the 5th session instruction and time-frequency resource allocation information to the base station in MBSFN region, and the 5th session instruction and time-frequency resource allocation information are used to indicate the base station in MBSFN region: be the cell allocation running time-frequency resource in MBSFN region according to the 5th session instruction and time-frequency resource allocation information.
Base station in the second all right unicast transmission community of transmitting element 404 sends the 6th session instruction, and the 6th session indicates the base station be used to indicate in unicast transmission community: the broadcast running time-frequency resource that the community in MBSFN region takies does not carry out unicast service.
In the present embodiment, second acquisition unit can obtain the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone; Second determining unit is according to the interfere information of cell list, community neighboring BS relationship and minizone, and the attaching relation information in conjunction with preset community and MBSFN region determines the adjacent area, border in MBSFN region, namely achieves and automatically identifies adjacent area, border; After the second receiving element receives the eMBMS session request of MME transmission, second transmitting element sends the second session instruction to the base station of adjacent area, border, second session instruction is used to indicate the base station of adjacent area, border: for adjacent area, border, the broadcast running time-frequency resource that community in MBSFN region takies does not carry out the power that clean culture business or use be less than predetermined power and carry out unicast service, namely reduce interference, ensure that the eMBMS business in MBSFN region and the unicast service in non-MBSFN region can both normally carry out.
Refer to Fig. 5, the present invention disturbs another embodiment of circumvention device to comprise second memory 501, second processor 502 and second transceiver 503.Second memory 501 is for storing batch processing instruction, and the second processor 502 is for calling the program command of second memory 501 storage to perform following operation:
The interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone is obtained by second transceiver 503;
According to the interfere information of cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and MBSFN region determines the adjacent area, border in MBSFN region, and adjacent area, border refers to and is positioned at non-MBSFN region and the community adjacent with MBSFN region;
The eMBMS session request of MME transmission is received by second transceiver 503, and send the second session instruction by second transceiver 503 to the base station of adjacent area, border, second session instruction is used to indicate the base station of adjacent area, border: for adjacent area, border, the broadcast running time-frequency resource that the community in MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
In addition, the interference circumvention device 500 that the present embodiment provides, can also be used for other function realized in said apparatus embodiment, not repeat them here.
Introduce the interference bypassing method that the embodiment of the present invention provides below, refer to Fig. 6, the method for the present embodiment comprises:
601, the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone is obtained;
In specific implementation, namely all base stations all report the interfere information of the community under covering separately, community neighboring BS relationship and minizone to interference circumvention device.Interference circumvention device leads to the interfere information that preset interface obtains cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone.In MBSFN region, a part of resource (referring to temporal resource) can be broadcasted, and another part resource can carry out clean culture.In non-MBSFN region, all resources are only for clean culture.
The interfere information of minizone can refer to: the switching times information in preset time between each community and other communities.When the poor signal of certain community, the terminal accessing this community will be switched to other communities, and the switching times thus between Liang Ge community is more, illustrates that the interference between Liang Ge community is larger.After base station reports the switching times information between each community and other communities to interference circumvention device, interference circumvention device can determine the annoyance level between any Liang Ge community according to the switching times information between each community and other communities.
602, according to the interfere information of obtained cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and MBSFN region determines the reservation community in MBSFN region, and other communities in MBSFN region except retaining community are broadcasting transmitting community;
The cell list that interference circumvention device reports according to each base station and community adjacent cell relation information can obtain community neighboring BS relationship topological diagram, can determine the reservation community in MBSFN region in conjunction with preset community and attaching relation (namely which community the belongs to MBSFN region) information in MBSFN region and the interfere information of minizone, determined reservation community can be as shown in Figure 1.Retain community to refer to: be positioned at MBSFN region, adjacent with non-MBSFN region and and interference between community adjacent in non-MBSFN region be greater than the community of default interference threshold.
603, the eMBMS session request that MME sends is received;
604, the first session instruction is sent to the base station retaining community, first session instruction is used to indicate and retains the base station of community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
For MBSFN region, in the coverage due to a base station, there is again broadcasting transmitting community community of may both withing a hook at the end.Therefore, before send the first session instruction to the base station retaining community, interference circumvention device sends a notification message to the base station retaining community by preset interface, and notification message is for notifying the base station retaining community: coverage which community interior retaining the base station of community belongs to retains community.
In addition, interference circumvention device can also send the 3rd session instruction and time-frequency resource allocation information to the base station of broadcasting transmitting community, and the 3rd session instruction and time-frequency resource allocation information are used to indicate the base station of broadcasting transmitting community: be broadcasting transmitting cell allocation running time-frequency resource according to the 3rd session instruction and time-frequency resource allocation information.
Interference circumvention device can also send the 4th session instruction to the base station in non-MBSFN region, the 4th session instruction is used to indicate the base station in non-MBSFN region: on the running time-frequency resource that broadcasting transmitting community takies, do not carry out unicast service.
In the present embodiment, interference circumvention device can obtain the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone; According to the interfere information of cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and MBSFN region is determined to retain community, namely achieves automatically to identify and retain community; When after the eMBMS session request receiving MME transmission, the first session instruction is sent to the base station retaining community, first session instruction is used to indicate the base station retaining community: for reservation community, the running time-frequency resource that broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service, namely reduce interference, ensure that the eMBMS business in MBSFN region and the unicast service in non-MBSFN region can both normally carry out.
Refer to Fig. 7, the present invention disturbs another embodiment of bypassing method to comprise:
701, the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone is obtained;
In specific implementation, namely all base stations all report the community under covering separately and community adjacent cell relation information to interference circumvention device.Interference circumvention device obtains the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone by preset interface.In MBSFN region, a part of resource (referring to temporal resource) can be broadcasted, and another part resource can carry out clean culture.In non-MBSFN region, all resources are only for clean culture.
The interfere information of minizone can refer to: the switching times information in preset time between each community and other communities.When the poor signal of certain community, the terminal accessing this community will be switched to other communities, and the switching times thus between Liang Ge community is more, illustrates that the interference between Liang Ge community is larger.After base station reports the switching times information between each community and other communities to interference circumvention device, interference circumvention device can determine the annoyance level between any Liang Ge community according to the switching times information between each community and other communities.
702, according to the interfere information of obtained cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and MBSFN region determines the adjacent area, border in MBSFN region;
The cell list that interference circumvention device reports according to each base station and community adjacent cell relation information can obtain community neighboring BS relationship topological diagram, the adjacent area, border in MBSFN region can be determined in conjunction with preset community and attaching relation (namely which community the belongs to MBSFN region) information in MBSFN region and the interfere information of minizone, adjacent area, border refers to: be positioned at non-MBSFN region, adjacent with MBSFN region and and interference between community adjacent in MBSFN region be greater than the community of default interference threshold, adjacent area, determined border can be as shown in Figure 4 b, other communities in non-MBSFN region except adjacent area, border are unicast transmission community.
703, the eMBMS session request that MME sends is received;
704, the base station to adjacent area, border sends the second session instruction, second session instruction is used to indicate the base station of adjacent area, border: for adjacent area, border, the broadcast running time-frequency resource that the community in MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
For non-MBSFN region, in the coverage due to a base station, there is again unicast transmission community possibility adjacent area, existing border.Therefore, before send the second session instruction to the base station of adjacent area, border, interference circumvention device sends a notification message by the base station of preset interface to adjacent area, border, and notification message is for notifying the base station of adjacent area, border: in the coverage of the base station of adjacent area, border, which community belongs to adjacent area, border.
In addition, interference circumvention device can also send the 5th session instruction and time-frequency resource allocation information to the base station in MBSFN region, and the 5th session instruction and time-frequency resource allocation information are used to indicate the base station in MBSFN region: be the cell allocation running time-frequency resource in MBSFN region according to the 5th session instruction and time-frequency resource allocation information.
Base station in all right unicast transmission community of interference circumvention device sends the 6th session instruction, and the 6th session indicates the base station be used to indicate in unicast transmission community: the broadcast running time-frequency resource that the community in MBSFN region takies does not carry out unicast service.
In the present embodiment, interference circumvention device can obtain the interfere information of cell list that the base station in MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone; According to the interfere information of cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and MBSFN region determines the adjacent area, border in MBSFN region, namely achieves and automatically identifies adjacent area, border; When after the eMBMS session request receiving MME transmission, base station to adjacent area, border sends the second session instruction, second session instruction is used to indicate the base station of adjacent area, border: for adjacent area, border, the broadcast running time-frequency resource that community in MBSFN region takies does not carry out the power that clean culture business or use be less than predetermined power and carry out unicast service, namely reduce interference, ensure that the eMBMS business in MBSFN region and the unicast service in non-MBSFN region can both normally carry out.
It should be noted that in addition, device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.In addition, in device embodiment accompanying drawing provided by the invention, the annexation between module represents to have communication connection between them, specifically can be implemented as one or more communication bus or holding wire.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly comprise application-specific integrated circuit (ASIC), dedicated cpu, private memory, special components and parts etc. realize by specialized hardware.Generally, all functions completed by computer program can realize with corresponding hardware easily, and the particular hardware structure being used for realizing same function also can be diversified, such as analog circuit, digital circuit or special circuit etc.But under more susceptible for the purpose of the present invention condition, software program realizes is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in the present invention each embodiment.
The one provided the embodiment of the present invention above disturbs bypassing method and device to be described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, therefore, this description should not be construed as limitation of the present invention.
Claims (16)
1. disturb a circumvention device, it is characterized in that, comprising:
First acquiring unit, for obtaining the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
First determining unit, for the interfere information according to described cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and described MBSFN region determines the reservation community in described MBSFN region, and other communities in described MBSFN region except described reservation community are broadcasting transmitting community;
First receiving element, for receiving the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
First transmitting element, for sending the first session instruction to the base station of described reservation community, described first session instruction is used to indicate the base station of described reservation community: for described reservation community, the running time-frequency resource that described broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
2. device as claimed in claim 1, is characterized in that, described first transmitting element also for,
Before send the first session instruction to the base station of described reservation community, sent a notification message by the base station of preset interface to described reservation community, described notification message is for notifying the base station of described reservation community: in the coverage of the base station of described reservation community, which community belongs to and retains community;
Described preset interface comprises standard interface and/or privately owned interface.
3. device as claimed in claim 2, is characterized in that, described first acquiring unit specifically for,
The interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone is obtained by described preset interface.
4. the device as described in claims 1 to 3 any one, it is characterized in that, described reservation community refers to: be positioned at described MBSFN region, adjacent with described non-MBSFN region and and interference between community adjacent in described non-MBSFN region be greater than the community of default interference threshold.
5. disturb a circumvention device, it is characterized in that, comprising:
Second acquisition unit, for obtaining the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
Second determining unit, for the interfere information according to described cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and described MBSFN region determines the adjacent area, border in described MBSFN region;
Second receiving element, for receiving the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
Second transmitting element, for sending the second session instruction to the base station of adjacent area, described border, described second session instruction is used to indicate the base station of adjacent area, described border: for adjacent area, described border, the broadcast running time-frequency resource that the community in described MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
6. device as claimed in claim 5, is characterized in that, described second transmitting element also for,
Before send the second session instruction to the base station of adjacent area, described border, sent a notification message by the base station of preset interface to adjacent area, described border, described notification message is for notifying the base station of adjacent area, described border: in the coverage of the base station of adjacent area, described border, which community belongs to adjacent area, border;
Described preset interface comprises standard interface and/or privately owned interface.
7. device as claimed in claim 6, is characterized in that, described second acquisition unit specifically for,
The interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone is obtained by described preset interface.
8. the device as described in claim 5 to 7 any one, it is characterized in that, adjacent area, described border refers to: be positioned at described non-MBSFN region, adjacent with described MBSFN region and and interference between community adjacent in described MBSFN region be greater than the community of default interference threshold.
9. disturb a bypassing method, it is characterized in that, comprising:
Obtain the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
According to the interfere information of described cell list, community neighboring BS relationship and minizone, attaching relation information in conjunction with preset community and described MBSFN region determines the reservation community in described MBSFN region, and other communities in described MBSFN region except described reservation community are broadcasting transmitting community;
Receive the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
Base station to described reservation community sends the first session instruction, described first session instruction is used to indicate the base station of described reservation community: for described reservation community, the running time-frequency resource that described broadcasting transmitting community takies does not carry out the power that eMBMS business or use be less than predetermined power and carries out unicast service.
10. method as claimed in claim 9, is characterized in that, before send the first session instruction to the base station of described reservation community, also comprises,
Sent a notification message by the base station of preset interface to described reservation community, described notification message is for notifying the base station of described reservation community: in the coverage of the base station of described reservation community, which community belongs to and retains community;
Described preset interface comprises standard interface and/or privately owned interface.
11. methods as claimed in claim 10, is characterized in that, the cell list that the base station in described acquisition MBSFN region and the base station in non-MBSFN region report and community adjacent cell relation information comprise:
The interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone is obtained by described preset interface.
12. methods as described in claim 9 to 11 any one, it is characterized in that, described reservation community refers to: be positioned at described MBSFN region, adjacent with described non-MBSFN region and and interference between community adjacent in described non-MBSFN region be greater than the community of default interference threshold.
13. 1 kinds of interference bypassing methods, is characterized in that, comprising:
Obtain the interfere information of cell list that the base station in multicast/multicast single-frequency network network MBSFN region and the base station in non-MBSFN region report, community neighboring BS relationship and minizone;
According to the interfere information of described cell list, community neighboring BS relationship and minizone, the attaching relation information in conjunction with preset community and described MBSFN region determines the adjacent area, border in described MBSFN region;
Receive the enhanced multimedia broadcast multicast service eMBMS session request that mobile management entity MME sends;
Base station to adjacent area, described border sends the second session instruction, described second session instruction is used to indicate the base station of adjacent area, described border: for adjacent area, described border, the broadcast running time-frequency resource that the community in described MBSFN region takies does not carry out the power that unicast service or use be less than predetermined power and carries out unicast service.
14. methods as claimed in claim 13, is characterized in that, before send the second session instruction to the base station of adjacent area, described border, also comprise:
Sent a notification message by the base station of preset interface to adjacent area, described border, described notification message is for notifying the base station of adjacent area, described border: in the coverage of the base station of adjacent area, described border, which community belongs to adjacent area, border;
Described preset interface comprises standard interface and/or privately owned interface.
15. methods as claimed in claim 14, is characterized in that, the cell list that the base station in described acquisition MBSFN region and the base station in non-MBSFN region report and community adjacent cell relation information comprise:
The interfere information of cell list that the base station in described MBSFN region and the base station in described non-MBSFN region report, community neighboring BS relationship and minizone is obtained by described preset interface.
16. methods as described in claim 13 to 15 any one, it is characterized in that, adjacent area, described border refers to: be positioned at described non-MBSFN region, adjacent with described MBSFN region and and interference between community adjacent in described MBSFN region be greater than the community of default interference threshold.
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| CN201510149183.8A CN104869544B (en) | 2015-03-31 | 2015-03-31 | A kind of interference bypassing method and device |
| PCT/CN2016/070634 WO2016155404A1 (en) | 2015-03-31 | 2016-01-12 | Interference avoidance method and device |
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| WO2016155404A1 (en) * | 2015-03-31 | 2016-10-06 | 华为技术有限公司 | Interference avoidance method and device |
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| WO2016155404A1 (en) | 2016-10-06 |
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