CN102006557A - Method and base station for avoiding disturbance to enhanced multicast broadcasting services (E-MBS) - Google Patents
Method and base station for avoiding disturbance to enhanced multicast broadcasting services (E-MBS) Download PDFInfo
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Abstract
The invention discloses a method and a base station for avoiding disturbance to enhanced multicast broadcasting services. The method comprises the following steps of: obtaining time-frequency resources used for sending the E-MBS of a macro cell base station by the base station when the E-M B S of the base station overlapped with the coverage area of the macro cell base station are closed; and not sending signaling and/or data on the time-frequency resources; or obtaining the time-frequency resources used for sending the E-MBS of the macro cell base station by the base station overlapped with the coverage area of the macro cell base station, selecting a modulation coding manner by the base station on the time-frequency resources according to a disturbance measurement result, and sending the singlecasting service signaling and/or data by adopting the selected modulation coding manner.
Description
Technical field
The present invention relates to wireless communication field, relate more specifically to a kind of avoiding Multimedia Broadcast Multicast Service is produced the method and the base station of disturbing.
Background technology
Cordless communication network is except there being the macrocell (Macrocell) that service can be provided for the public, for being remedies the not enough and lower weakness of throughput of the indoor covering of macro base station (Macro BS), the picocell (Femtocell) of service has also appearred providing for personal user or group user, so that the user who moves for the especially indoor low speed of mobile subscriber and the user of hot zones provide the more high efficiency wireless access of high-quality.The user can oneself buy or picocell base station (Femto BS) is installed, and is easy-to-use.
MBS (Multicast Broadcast Service, Multimedia Broadcast Multicast Service) is a kind of technology that transmits data from a data source to a plurality of targets, can realize sharing of network (comprising core net and Access Network) resource, improve the utilance of Internet resources (especially air interface resource).Along with popularizing and Development of Multimedia Technology of the Internet, the application of multimedia shared service is more and more wider, and data volume is also increasing simultaneously, carries out multicast and broadcast traffic transmissions efficiently and also becomes unprecedentedly important for next generation mobile communication system.
It has been the service that industry is generally acknowledged and can be implemented that Multimedia Broadcast Multicast Service is provided in the macrocell of wireless communication system at present, in order to improve the coverage of Multimedia Broadcast Multicast Service, a plurality of synchronous macrocells can constitute cell multicast broadcasting service more than (multi-BS MBS) coverage (MBS Zone), obtain many sub-districts macro diversity by on same running time-frequency resource, sending identical data, the user who makes at cell edge also can obtain better service, simultaneously since this moment adjacent sub-district disturb with (co-channel) frequently and do not exist, therefore the base station can be passed through to increase transmitting power, thereby the multicast and broadcast service of higher rate is provided.For not obtaining fine synchronous base station with many cell multicasts broadcasting service coverage, can provide the frame level synchronous many cell multicasts broadcasting service service (frame-level multi-BS MBS), be that different districts sends identical Multimedia Broadcast Multicast Service in identical radio frames, although can not obtain macro diversity, can guarantee the continuity of Multimedia Broadcast Multicast Service.
May have a large amount of Home eNodeB in the overlay area of a macro base station, all types sub-district all can join in many cell multicasts broadcast service zone, by the E-MBS service controller or the unified resource of dispatching Multimedia Broadcast Multicast Service of other network element of network side.
But how the multicast and broadcast service is provided in emerging picocell is the current problem that needs discussion and solve.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and base station of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced.
For solving the problems of the technologies described above, the invention provides a kind of method of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced, comprising:
With the enhanced multicast broadcasting (E-MBS) of the base station of macro cell base station covering area overlapping when business is closed, described base station obtains the running time-frequency resource that described macro cell base station is used to send E-MBS, does not send signaling and/or data on described running time-frequency resource.
Further, described macro cell base station adopts the grand diversity transmission mode in many sub-districts to send the E-MBS business, and described running time-frequency resource is the running time-frequency resource that sends the E-MBS business with many sub-districts macro diversity mode.
Further, described base station one or both in the following ways obtain described running time-frequency resource: the broadcast of the macro cell base station of overlapping covering is with it monitored in described base station, obtains the running time-frequency resource position that this macro cell base station sends the E-MBS business; Described base station obtains the running time-frequency resource position that described macro cell base station sends E-MBS by network side.
Further, described base station informs the subframe position that oneself does not send signaling and/or data to terminal described terminal does not receive signaling and/or data on these subframe position.
Further, the terminal in E-MBS business and current area are supported in described base station is not asked to receive all terminals in E-MBS business or the current area and has all been finished to receive E-MBS when professional, and the E-MBS business is closed in described base station.
Further, the terminal in described macrocell is initiated handoff request, and described terminal is indicated when needing to keep receiving Multimedia Broadcast Multicast Service the E-MBS capability state of described macro cell base station and this base station of described base station negotiate in handoff request message; After negotiation finishes, in the switching command message of terminal response, carry the E-MBS capability state of all candidate target cells, described terminal is selected a Target cell according to the E-MBS capability state of candidate target cells at least from candidate target cells, send to described macro cell base station and switch indication.
Further, described E-MBS capability state comprises: support E-MBS business and E-MBS business to activate; Support E-MBS business and E-MBS business to close; Do not support the E-MBS business.
Further, described macro cell base station judges that the E-MBS capability state of the affiliated base station, sub-district that described terminal is selected is to support E-MBS business and E-MBS business to close, and then indicates described base station activation E-MBS business.
Further, described terminal enters enable mode from idle pulley, selecting administration sub-district, described base station to carry out network re-accesses, described base station knows that by network side terminal will receive the E-MBS business, if the E-MBS capability state of described base station is for closing the E-MBS business, then described base station activation E-MBS business.
Further, described base station is the picocell base station or second macro cell base station.
For solving the problems of the technologies described above, the invention provides a kind of method of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced, comprising:
Obtain the running time-frequency resource that described macro cell base station is used to send enhanced multicast broadcasting (E-MBS) business with the base station of macro cell base station covering area overlapping, modulation coding mode is selected according to interference measurement results in described base station on described running time-frequency resource, adopt the signaling and/or the data of the modulation coding mode unicast traffic of selecting.
Further, described macro cell base station adopts the grand diversity transmission mode in many sub-districts to send the E-MBS business, and described running time-frequency resource is the running time-frequency resource that sends the E-MBS business with many sub-districts macro diversity mode.
Further, described base station one or both in the following ways obtain described running time-frequency resource: the broadcast of the macro cell base station of overlapping covering is with it monitored in described base station, obtains the running time-frequency resource position that this macro cell base station sends the E-MBS business; Described base station obtains the running time-frequency resource position that sends E-MBS by network side.
Further, the terminal in described macrocell is initiated handoff request, and described terminal is indicated when needing to keep receiving Multimedia Broadcast Multicast Service the E-MBS capability state of described macro cell base station and this base station of described base station negotiate in handoff request message; After negotiation finishes, in the switching command message of terminal response, carry the E-MBS capability state of all candidate target cells, described terminal is selected a Target cell according to the E-MBS capability state of candidate target cells at least from candidate target cells, send to described macro cell base station and switch indication.
Further, described E-MBS capability state comprises: support E-MBS business and E-MBS business to activate; Support E-MBS business and E-MBS business to close; Do not support the E-MBS business.
Further, described macro cell base station judges that the E-MBS capability state of the affiliated base station, sub-district that described terminal is selected is to support E-MBS business and E-MBS business to close, and then indicates described base station activation E-MBS business.
Further, described terminal enters enable mode from idle pulley, selecting administration sub-district, described base station to carry out network re-accesses, described base station knows that by network side terminal will receive the E-MBS business, if the E-MBS capability state of described base station is for closing the E-MBS business, then described base station activation E-MBS business.
Further, described base station is the picocell base station or second macro cell base station.
For solving the problems of the technologies described above, the invention provides a kind of base station of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced, comprise judge module, resource acquisition module and sending module, wherein:
Described judge module is used for judging further whether the overlay area of this base station and macro cell base station overlay area be overlapping when enhanced multicast broadcasting (E-MBS) business of judging this base station is closed condition, if then call described resource acquisition module;
Described resource acquisition module is used to obtain the running time-frequency resource that described macro cell base station is used to send E-MBS, and the running time-frequency resource that obtains is sent to sending module;
Described sending module is used for stopping to send signaling and/or data on described running time-frequency resource.
For solving the problems of the technologies described above, the invention provides a kind of base station of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced, comprise judge module and sending module, wherein:
Described judge module is used for calling described resource acquisition module when the covering area overlapping of the overlay area of judging this base station and macro cell base station;
Described resource acquisition module is used to obtain the running time-frequency resource that described macro cell base station is used to send enhanced multicast broadcasting (E-MBS), and the running time-frequency resource that obtains is sent to sending module;
Described sending module is used for selecting modulation coding mode according to interference measurement results on described running time-frequency resource, adopts the signaling and/or the data of the modulation coding mode unicast traffic of selecting.
By the present invention, can effectively reduce the interference of picocell base station in the overlay area of multicast and broadcast transmission synchronously, promptly reduce the interference of picocell to the macrocell Multimedia Broadcast Multicast Service, whether needs reception E-MBS business is come opening and closing E-MBS service to the terminal of picocell base station basis oneself service simultaneously, both can make the picocell power saving, saved the bandwidth resources that picocell is connected with network side simultaneously, can improve the service quality of system better for privately owned user provides service.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the picocell base station does not send signaling and/or data message on the resource of macrocell transmission Multimedia Broadcast Multicast Service a frame schematic diagram;
Fig. 2 is the handling process schematic diagram of the embodiment of the invention one picocell base station to mutual broadcasting service resources;
Fig. 3 is the picocell base station sends signaling and/or data message with lower-wattage on the resource of macrocell transmission Multimedia Broadcast Multicast Service a frame schematic diagram;
Fig. 4 is the handling process schematic diagrames of the embodiment of the invention three picocell base stations to mutual broadcasting service resources;
Fig. 5 is the frame schematic diagram that sends identical Multimedia Broadcast Multicast Service on the different subframes of picocell base station in the radio frames of macrocell transmission Multimedia Broadcast Multicast Service;
Fig. 6 a and 6b are the grand diversity and the Fei Hong diversity transmission pattern sub-frame configuration schematic diagrames of many cell multicasts broadcasting service;
Fig. 7 is the frame schematic diagram of picocell base station single cell multicast broadcasting service of dynamic dispatching on the position different with the running time-frequency resource of macrocell transmission Multimedia Broadcast Multicast Service.
Embodiment
A kind of implementation is: with the enhanced multicast broadcasting (E-MBS) of the base station of macro cell base station covering area overlapping when business is closed, described base station obtains described macro cell base station and is used to send the E-MBS running time-frequency resource, does not send signaling and/or data on described running time-frequency resource.
Another kind of implementation is: obtain the running time-frequency resource that described macro cell base station is used to send enhanced multicast broadcasting (E-MBS) business with the base station of macro cell base station covering area overlapping, modulation coding mode is selected according to interference measurement results in described base station on described running time-frequency resource, adopt the signaling and/or the data of the modulation coding mode unicast traffic of selecting.
Above-mentioned base station is picocell base station or macro cell base station.
By above scheme, can reduce the professional interference that produces of E-MBS that the picocell base station sends macro cell base station to greatest extent.In addition, employing scheme one has also been saved the bandwidth resources (Radio Resource) that picocell is connected with network side.And second scheme makes full use of Radio Resource, has saved cable resource.
Covering area overlapping as herein described or overlapping covering comprise following situation, the overlay area of picocell in the overlay area of macrocell, the overlay area of picocell and the covering area overlapping of macrocell.
Above-mentioned macro cell base station adopts the grand diversity transmission mode in many sub-districts to send the E-MBS business, and described running time-frequency resource is the running time-frequency resource that sends the E-MBS business with many sub-districts macro diversity mode.Need to prove that because macro cell base station adopts the grand diversity transmission mode in many sub-districts, it must be positioned at an E-MBS Zone, also can not belong to this E-MBS Zone but picocell can belong to this E-MBS Zone.
Preferably, described picocell base station one or both in the following ways obtain described running time-frequency resource: the broadcast of the macro cell base station of overlapping covering (for example resource allocation broadcast) is with it monitored in described picocell base station, obtains the running time-frequency resource position that this macro cell base station sends the E-MBS business; Described picocell base station obtains the running time-frequency resource position that described macro cell base station sends E-MBS by network side (for example by E-MBS service controller or E-MBS gateway).The picocell base station can adopt above-mentioned dual mode to obtain simultaneously, for example the resource allocation information of the E-MBS that sends by network side.
Terminal in described macrocell is initiated handoff request, and described terminal is indicated in handoff request message when needing to keep receiving Multimedia Broadcast Multicast Service, the E-MBS capability state (for example holding consultation by handoff request and handoff response) of described macro cell base station and this picocell base station of described picocell base station negotiate; After negotiation finishes, in the switching command message of terminal response, carry the E-MBS capability state (for example form) of all candidate target cells by tabulating, described terminal is selected a Target cell according to the E-MBS ability of candidate target cells at least from candidate target cells, send to described macro cell base station and switch indication.
Above-mentioned E-MBS capability state comprises: support E-MBS business and E-MBS business to activate; Support E-MBS business and E-MBS business to close; Do not support the E-MBS business.Described macro cell base station judges that the Target cell that described terminal is selected is a picocell, and the E-MBS capability state of picocell base station is closed for supporting E-MBS business and E-MBS business under the described picocell, and then described macro cell base station is indicated described picocell base station activation E-MBS business.
When described terminal enters into enable mode from idle pulley, select described picocell to carry out network when re-accessing, the picocell base station can obtain the phase related control information and/or the data of terminal by other unit (for example E-MB gateway or E-MBS service controller) of paging controller or network, wherein comprise the information relevant at least with E-MBS, make the picocell base station can judge according to this information whether this terminal will receive the E-MBS business, if terminal is receiving the E-MBS business, then described picocell base station need transfer unlatching (activation) state to from (to be activated) state of closing, or keeps state of activation.After the described picocell base station activation E-MBS business, by the E-MBS gateway of network side or the control and/or the data message of E-MBS service controller acquisition Multimedia Broadcast Multicast Service.Can be with single cell multicast broadcast mode, perhaps many cell multicasts broadcast mode (comprising grand diversity and non-macro diversity mode) provides the Multimedia Broadcast Multicast Service service.
Especially, at first kind of scheme:
Described picocell base station informs the subframe position that oneself does not send signaling and/or data to terminal described terminal does not receive signaling and/or data on these subframe position.Further, described picocell base station can make terminal know that it does not send the subframe position of signaling and/or data by making an appointment or message informing (express or hint).For example, terminal can be notified expressly by broadcast (referring to table 1) in the picocell base station, comprise in the following information one or more in the described broadcast: superframe, radio frames, wireless sub-frame can not indicated by the mode of making an appointment by the content that broadcast is carried.The indication of described superframe level or radio frames level or sub-frame level one of can be in the following manner: bit map (Bit Map), drawing indexing (Bit Map Pattern Index), lookup table mode are represented;
The form of table 1 system broadcast message
Terminal in the professional and current picocell of E-MBS is supported in described picocell base station is not asked to receive all terminals in the professional or current picocell of E-MBS and has all been finished to receive E-MBS when professional, base station selected its E-MBS business of closing of described picocell.
At second kind of scheme:
The modulation coding mode of described selection should guarantee the signal quality of the unicast user under this picocell base station covering at least.
The base station of realizing such scheme one comprises judge module, resource acquisition module and sending module, wherein:
Described judge module is used for judging further whether the overlay area of this base station and macro cell base station overlay area be overlapping when enhanced multicast broadcasting (E-MBS) business of judging this base station is closed condition, if then call described resource acquisition module;
Described resource acquisition module is used to obtain the running time-frequency resource that described macro cell base station is used to send E-MBS, and the running time-frequency resource that obtains is sent to sending module;
Described sending module is used for stopping to send signaling and/or data on described running time-frequency resource.
The base station of realizing such scheme two comprises judge module and sending module, wherein:
Described judge module is used for calling described resource acquisition module when the covering area overlapping of the overlay area of judging this base station and macro cell base station;
Described resource acquisition module is used to obtain the running time-frequency resource that described macro cell base station is used to send enhanced multicast broadcasting (E-MBS), and the running time-frequency resource that obtains is sent to sending module;
Described sending module is used for selecting modulation coding mode according to interference measurement results on described running time-frequency resource, adopts the signaling and/or the data of the modulation coding mode unicast traffic of selecting.
With the picocell be below example the present invention is further described, identical therewith to the processing method of macrocell.
Can there be macrocell and picocell in the zone of multiple sectors at same step transmission Multimedia Broadcast Multicast Service, the unified scheduling of the E-MBS business service controller of network side or scheduler mutual broadcasting service resources, and control information and data are sent in each base station in many cell multicasts broadcast area.When the current institute of picocell service-user does not have the Multimedia Broadcast Multicast Service demand, picocell can not send Multimedia Broadcast Multicast Service, when terminal activates Multimedia Broadcast Multicast Service or network side activation Multimedia Broadcast Multicast Service, picocell can send Multimedia Broadcast Multicast Service with different sending modes according to scene, described sending mode comprises: the grand diversity transmission mode in many sub-districts, the non-grand diversity transmission mode in many sub-districts, single sub-district send mode; Can not send Multimedia Broadcast Multicast Service when the situation of the Multimedia Broadcast Multicast Service that does not have to activate is next.
Embodiment 1
When the capability state of the Multimedia Broadcast Multicast Service of picocell base station is closed condition, and this picocell base station is in the overlay area of a macro cell base station, and this macro cell base station and picocell base station belong to a multiple sectors at same step and send in the multicast broadcasting service area territory.When all terminals that with the picocell base station are serving BS did not receive the demand of Multimedia Broadcast Multicast Service, the picocell base station can not send any multicast broadcast service data.
Fig. 1 has provided the frame schematic diagram that does not send signaling and/or data message on the picocell base station sends Multimedia Broadcast Multicast Service at macrocell the resource.Fig. 2 has provided the handling process schematic diagram of picocell base station to mutual broadcasting service resources, may further comprise the steps:
That is to say that the picocell base station only sends signaling and/or data on the running time-frequency resource except that those running time-frequency resources, in other words, the picocell base station stops to send signaling and/or data on those running time-frequency resources.
By on these running time-frequency resources, not sending signaling and/or data, thus avoid with macrocell under Multimedia Broadcast Multicast Service mutual interference mutually, influence the quality that macro cell base station user around the picocell base station receives Multimedia Broadcast Multicast Service.
Step 130, picocell base station are by broadcast, and as the system configuration descriptor, the notice terminal does not send the indication information of the subframe position of any signaling and/or data.
Whether step 140, macro cell base station are judged has terminal to prepare to switch to picocell in the macrocell of its administration, and this terminal need keep receiving the multicast and broadcast service, if, execution in step 150, otherwise finish;
If macro cell base station receives the handoff request information (MSHO-REQ) that terminal sends, and comprise the E-MBS service request in this information, perhaps macro cell base station knows that by alternate manner terminal is receiving the E-MBS business, thinks that then above-mentioned condition sets up execution in step 150.
Step 150, macro cell base station comprises the picocell base station by the target BS of network side to the candidate, sends handoff request message (HO-REQ), comprises the E-MBS service request in this message;
The aforementioned capabilities state can only comprise supports and does not support the E-MBS business, and the terminal screening supports the sub-district of E-MBS business to insert.Perhaps also can not carry this ability, and directly screen the Target cell of supporting the E-MBS business, it is added in the candidate target cells tabulation by macro cell base station.
In other embodiments, if macro cell base station is not carried the E-MBS capability state of candidate target cells in the Target cell tabulation, if then the target picocell of terminal selection is not supported the EMBS business, the EMBS business of terminal will stop.
Embodiment 2
When Multimedia Broadcast Multicast Service is not supported in the picocell base station, and this picocell base station is in the overlay area of a macro cell base station, and this macro cell base station and picocell base station belong to a multiple sectors at same step and send in the multicast broadcasting service area territory.
When all terminals that with the picocell base station are serving BS do not receive the demand of Multimedia Broadcast Multicast Service, the picocell base station can be on the running time-frequency resource of the Multimedia Broadcast Multicast Service that network side distributes the signaling and/or the data of unicast traffic, but transmitted power is limited, the modulation coding mode that unicast traffic adopted on this resource can be decided according to the interference of measuring on the resource that macro cell base station sends the EMBS business in the picocell base station, so that reduce the picocell base station macro cell base station terminal is received the interference to the unicast data of the terminal under the picocell base station of the interference of EMBS data and macro cell base station EMBS data.
Fig. 3 has provided the frame schematic diagram that sends signaling and/or data message on the picocell base station sends Multimedia Broadcast Multicast Service at macrocell the resource with lower-wattage.Fig. 4 has provided the handling process schematic diagram of picocell base station to mutual broadcasting service resources, may further comprise the steps:
Step 210, the picocell base station can be by monitoring the broadcast of the macro cell base station of overlapping covering with it, obtain the resource location information of Multimedia Broadcast Multicast Service, perhaps, when the picocell base station also belongs to multiple sectors at same step when sending base station in the multicast broadcasting service area territory, can obtain the resource location information of Multimedia Broadcast Multicast Service by network side;
When having terminal to prepare to switch to picocell in the macrocell, and this terminal need keep receiving Multimedia Broadcast Multicast Service, whether supports Multimedia Broadcast Multicast Service according to the picocell base station, carries out different processing, referring to embodiment 1.
Embodiment 3
The picocell base station is in the overlay area of a macro cell base station, and this macro cell base station and picocell base station belong in the multiple sectors at same step transmission multicast broadcasting service area territory, when Multimedia Broadcast Multicast Service by all or part of sub-carrier resources of network side isochronous schedules at some wireless sub-frame on the time, picocell base station and macro cell base station can provide Multimedia Broadcast Multicast Service with the send mode of grand diversity or non-grand diversity.The picocell base station obtains resource location, control information and/or the data message of Multimedia Broadcast Multicast Service by network side.Under the grand diversity transmission mode, picocell and macrocell synchronized transmission Multimedia Broadcast Multicast Service, promptly picocell sends identical Multimedia Broadcast Multicast Service sending on the same sub in the radio frames of Multimedia Broadcast Multicast Service with macrocell.Under the non-grand diversity transmission mode, picocell with subframe different in macrocell sends the radio frames of Multimedia Broadcast Multicast Service on send identical Multimedia Broadcast Multicast Service content.Fig. 5 has provided the frame schematic diagram that sends identical Multimedia Broadcast Multicast Service on the different subframes of picocell base station in the radio frames of macrocell transmission Multimedia Broadcast Multicast Service.
The multiple sectors at same step of grand diversity sends Multimedia Broadcast Multicast Service, it is grand diversity transmission mode, be to send identical multicast broadcast service data at identical running time-frequency resource in a synchronous manner by a plurality of macrocells, thereby the acquisition macro diversity covers to improve, and increases the Multimedia Broadcast Multicast Service throughput of Cell Edge User, simultaneously because the data that many sub-districts send on this resource are identical, therefore there is not interference, thereby can launches, further improve power system capacity with higher power.
Do not support many sub-districts of grand diversity to send Multimedia Broadcast Multicast Service, it is non-grand diversity transmission mode, be to send identical multicast broadcast service data by a plurality of macrocells an inter-sync mode of radio frames, each macrocell does not need strict sign synchronization, and each macrocell can send identical multicast and broadcast content on the different subframes in same radio frames, terminal can be by receiving a plurality of multicast broadcast service data bags with identical content, merge gain thereby obtain selectivity, to improve the Multimedia Broadcast Multicast Service reception reliability of Cell Edge User.
Fig. 6 a and Fig. 6 b have provided the sub-frame configuration mode of many cell multicasts broadcasting service of supporting grand diversity respectively and have not supported the sub-frame configuration mode of many cell multicasts broadcasting service of grand diversity.As shown in the figure, for many cell multicasts broadcasting service send mode of supporting grand diversity, the identical multicast and broadcast subframe of each macro cell base station configuration, and for many cell multicasts broadcasting service send mode of not supporting grand diversity, each macro cell base station but can dispose different multicast and broadcast subframes in identical radio frames.
Under the non-grand diversity transmission mode, be the Multimedia Broadcast Multicast Service service that the user of Serving cell can obtain this sub-district with the picocell, by receive the identical Multimedia Broadcast Multicast Service content that macrocell sends on other subframe, optionally merge simultaneously.While is the Multimedia Broadcast Multicast Service service that the user of Serving cell can obtain this sub-district with the macrocell, and the identical Multimedia Broadcast Multicast Service content that sends on other subframe by near picocell receiving optionally merges simultaneously.Thereby improve the service quality of Multimedia Broadcast Multicast Service.
When picocell entered low energy consumption mode of operation (low-duty mode), Multimedia Broadcast Multicast Service still continued to send.Parameters such as the resource allocation cycle of Multimedia Broadcast Multicast Service do not influence available (available) and the parameter configuration in unavailable (unavailable) cycle under the low energy consumption mode of operation.Picocell also can be adjusted with the parameter configuration in unavailable (unavailable) cycle available (available) under the low energy consumption mode of operation according to the resource allocation cycle of Multimedia Broadcast Multicast Service.
Embodiment 4
Suppose picocell base station and the different carrier frequency of macro cell base station use, perhaps the picocell base station terminal of serving only has minority to receive Multimedia Broadcast Multicast Service, and the picocell base station can provide Multimedia Broadcast Multicast Service for its service-user in the mode that single sub-district sends.The picocell base station obtains the data message of Multimedia Broadcast Multicast Service by network side, sends these multicast broadcast service datas by the dynamic dispatching of picocell base station.Fig. 7 has provided the frame schematic diagram of picocell base station single cell multicast broadcasting service of dynamic dispatching on the position different with the running time-frequency resource of macrocell transmission Multimedia Broadcast Multicast Service.
It is to send Multimedia Broadcast Multicast Service by the flexible dynamic dispatching resource in base station that single sub-district sends Multimedia Broadcast Multicast Service, there are not grand diversity in many sub-districts and selectivity to merge gain, but the base station need not and other base station coordinated scheduling resource, therefore can the flexible dispatching resource, be applicable to more some can't with the scene of fine synchronous scene in other base station and pilot frequency point work under.
As mentioned above, by means of provided by the invention in picocell the sending method of Multimedia Broadcast Multicast Service, terminal can receive Multimedia Broadcast Multicast Service reliably efficiently.Solved the interference coordination problem that Multimedia Broadcast Multicast Service is provided between the picocell and macrocell in the system,, can improve the multicast and broadcast service performance of system by the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. a method of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced is characterized in that,
With the enhanced multicast broadcasting (E-MBS) of the base station of macro cell base station covering area overlapping when business is closed, described base station obtains the running time-frequency resource that described macro cell base station is used to send E-MBS, does not send signaling and/or data on described running time-frequency resource.
2. the method for claim 1 is characterized in that,
Described macro cell base station adopts the grand diversity transmission mode in many sub-districts to send the E-MBS business, and described running time-frequency resource is the running time-frequency resource that sends the E-MBS business with many sub-districts macro diversity mode.
3. the method for claim 1 is characterized in that,
Described base station one or both in the following ways obtain described running time-frequency resource:
The broadcast of the macro cell base station of overlapping covering is with it monitored in described base station, obtains the running time-frequency resource position that this macro cell base station sends the E-MBS business;
Described base station obtains the running time-frequency resource position that described macro cell base station sends E-MBS by network side.
4. the method for claim 1 is characterized in that,
Described base station informs the subframe position that oneself does not send signaling and/or data to terminal described terminal does not receive signaling and/or data on these subframe position.
5. the method for claim 1 is characterized in that,
Terminal in E-MBS business and current area are supported in described base station is not asked to receive all terminals in E-MBS business or the current area and has all been finished to receive E-MBS when professional, and the E-MBS business is closed in described base station.
6. the method for claim 1 is characterized in that,
Terminal in described macrocell is initiated handoff request, and described terminal is indicated when needing to keep receiving Multimedia Broadcast Multicast Service the E-MBS capability state of described macro cell base station and this base station of described base station negotiate in handoff request message; After negotiation finishes, in the switching command message of terminal response, carry the E-MBS capability state of all candidate target cells, described terminal is selected a Target cell according to the E-MBS capability state of candidate target cells at least from candidate target cells, send to described macro cell base station and switch indication.
7. method as claimed in claim 6 is characterized in that,
Described E-MBS capability state comprises: support E-MBS business and E-MBS business to activate; Support E-MBS business and E-MBS business to close; Do not support the E-MBS business.
8. method as claimed in claim 7 is characterized in that,
Described macro cell base station judges that the E-MBS capability state of the affiliated base station, sub-district that described terminal is selected is to support E-MBS business and E-MBS business to close, and then indicates described base station activation E-MBS business.
9. the method for claim 1 is characterized in that,
Described terminal enters enable mode from idle pulley, selecting administration sub-district, described base station to carry out network re-accesses, described base station knows that by network side terminal will receive the E-MBS business, if the E-MBS capability state of described base station is for closing the E-MBS business, then described base station activation E-MBS business.
10. as the described method of arbitrary claim among the claim 1-9, it is characterized in that,
Described base station is the picocell base station or second macro cell base station.
11. a method of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced is characterized in that,
Obtain the running time-frequency resource that described macro cell base station is used to send enhanced multicast broadcasting (E-MBS) business with the base station of macro cell base station covering area overlapping, modulation coding mode is selected according to interference measurement results in described base station on described running time-frequency resource, adopt the signaling and/or the data of the modulation coding mode unicast traffic of selecting.
12. method as claimed in claim 11 is characterized in that,
Described macro cell base station adopts the grand diversity transmission mode in many sub-districts to send the E-MBS business, and described running time-frequency resource is the running time-frequency resource that sends the E-MBS business with many sub-districts macro diversity mode.
13. method as claimed in claim 11 is characterized in that,
Described base station one or both in the following ways obtain described running time-frequency resource:
The broadcast of the macro cell base station of overlapping covering is with it monitored in described base station, obtains the running time-frequency resource position that this macro cell base station sends the E-MBS business;
Described base station obtains the running time-frequency resource position that sends E-MBS by network side.
14. method as claimed in claim 11 is characterized in that,
Terminal in described macrocell is initiated handoff request, and described terminal is indicated in handoff request message when needing to keep receiving Multimedia Broadcast Multicast Service:
The E-MBS capability state of described macro cell base station and this base station of described base station negotiate; After negotiation finishes, in the switching command message of terminal response, carry the E-MBS capability state of all candidate target cells, described terminal is selected a Target cell according to the E-MBS capability state of candidate target cells at least from candidate target cells, send to described macro cell base station and switch indication.
15. method as claimed in claim 11 is characterized in that,
Described E-MBS capability state comprises: support E-MBS business and E-MBS business to activate; Support E-MBS business and E-MBS business to close; Do not support the E-MBS business.
16. method as claimed in claim 15 is characterized in that,
Described macro cell base station judges that the E-MBS capability state of the affiliated base station, sub-district that described terminal is selected is to support E-MBS business and E-MBS business to close, and then indicates described base station activation E-MBS business.
17. method as claimed in claim 11 is characterized in that,
Described terminal enters enable mode from idle pulley, selecting administration sub-district, described base station to carry out network re-accesses, described base station knows that by network side terminal will receive the E-MBS business, if the E-MBS capability state of described base station is for closing the E-MBS business, then described base station activation E-MBS business.
18. as the described method of the arbitrary claim of claim 11-16, it is characterized in that,
Described base station is the picocell base station or second macro cell base station.
19. a base station of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced is characterized in that, comprises judge module, resource acquisition module and sending module, wherein:
Described judge module is used for judging further whether the overlay area of this base station and macro cell base station overlay area be overlapping when enhanced multicast broadcasting (E-MBS) business of judging this base station is closed condition, if then call described resource acquisition module;
Described resource acquisition module is used to obtain the running time-frequency resource that described macro cell base station is used to send E-MBS, and the running time-frequency resource that obtains is sent to sending module;
Described sending module is used for stopping to send signaling and/or data on described running time-frequency resource.
20. a base station of avoiding interference that the Multimedia Broadcast Multicast Service that strengthens is produced is characterized in that, comprises judge module and sending module, wherein:
Described judge module is used for calling described resource acquisition module when the covering area overlapping of the overlay area of judging this base station and macro cell base station;
Described resource acquisition module is used to obtain the running time-frequency resource that described macro cell base station is used to send enhanced multicast broadcasting (E-MBS), and the running time-frequency resource that obtains is sent to sending module;
Described sending module is used for selecting modulation coding mode according to interference measurement results on described running time-frequency resource, adopts the signaling and/or the data of the modulation coding mode unicast traffic of selecting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172871.0A CN102006557B (en) | 2009-08-31 | 2009-08-31 | Method and base station for avoiding disturbance to enhanced multicast broadcasting services (E-MBS) |
| PCT/CN2010/073829 WO2011023019A1 (en) | 2009-08-31 | 2010-06-11 | Mehod and base station for providing enhanced multicast broadcast service(e-mbs) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910172871.0A CN102006557B (en) | 2009-08-31 | 2009-08-31 | Method and base station for avoiding disturbance to enhanced multicast broadcasting services (E-MBS) |
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| CN102006557A true CN102006557A (en) | 2011-04-06 |
| CN102006557B CN102006557B (en) | 2015-05-13 |
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| WO (1) | WO2011023019A1 (en) |
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| CN102932836A (en) * | 2011-08-12 | 2013-02-13 | 中兴通讯股份有限公司 | Switching processing method and system |
| WO2014008771A1 (en) * | 2012-07-09 | 2014-01-16 | 华为技术有限公司 | Transmission signal sending and receiving method, terminal and base station |
| CN103781024A (en) * | 2012-10-22 | 2014-05-07 | 宏碁股份有限公司 | Method of transmitting multicast signal and unicast signal and related communication device |
| CN104541485A (en) * | 2012-05-02 | 2015-04-22 | Lg电子株式会社 | Method for estimating channel in wireless access system and apparatus for same |
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| CN110582110B (en) * | 2018-06-07 | 2021-08-17 | 中国移动通信集团山东有限公司 | Optimal cell selection method for NB-IoT network overlapping coverage area |
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Also Published As
| Publication number | Publication date |
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| WO2011023019A1 (en) | 2011-03-03 |
| CN102006557B (en) | 2015-05-13 |
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