CN101431721A

CN101431721A - Wireless resource scheduling method for multi-base station MBS

Info

Publication number: CN101431721A
Application number: CNA2008101093953A
Authority: CN
Inventors: 宋建全; 褚丽; 许玲; 曲红云
Original assignee: ZTE Corp
Current assignee: Wudi Xinyue Chemical Group Co ltd
Priority date: 2007-11-06
Filing date: 2008-06-06
Publication date: 2009-05-13
Anticipated expiration: 2028-06-06
Also published as: CN101431721B

Abstract

The invention discloses a wireless resource scheduling method for multi-base station broadcast multicast service MBS, comprising the steps that: a unified configuration is carried out to wireless resources of downlink sub-frames of all the base station in one MBS zone to become two parts, any part of the wireless resources is scheduled for local services by a local service scheduler on the base station, the local services include unicast or single-base station MBS services; other part of the wireless resources is scheduled for the multi-base station MBS by a multi-base station MBS resource scheduler within the MBS zone. By means of the technical proposal of the invention, it is possible that each MBS zone to which the base stations belong individually schedules the configured multi-base station MBS wireless resources, so as to achieve share of the local service sand the multi-base station MBS wireless resources and to advance delivery efficiency of multi-base station MBS resource scheduling information.

Description

The scheduling method for wireless resource of multi-base station MBS

Technical field

The present invention relates to micro-wave access global inter communication (Word Interoperability forMicrowave Access abbreviates WiMAX as) network field, be specifically related to a kind of scheduling method for wireless resource of multi-base station MBS.

Background technology

At (the Service Provider Work Group of demand working group, abbreviate SPWG as) the middle definition to multicast broadcast service (Multicast and Broadcast Service, abbreviate MCBCS as) demand, what MCBCS defined is type of service, promptly, this business can be received by a plurality of users, and should business aloft during interface bearing, can adopt man-to-man mode of unicast to realize allowing a plurality of users receive respectively with a plurality of reception users; Perhaps adopt the multicast and broadcast mode of one-to-many to realize allowing a plurality of users receive, still, after employing, can save the on-air radio resource during a kind of mode with a plurality of reception users. In the IEEE802.16e-2005 standard, support two kinds of multicast broadcast service (Multicast and Broadcast Service abbreviates MBS as) business, what MBS defined is the air interface bearing mode, that is, adopt same Radio Resource to send aloft, can be received by a plurality of users.The MBS business is divided into single base station MBS and multi-base station MBS, that is the MBS business of the MBS business of single base station (Base Station abbreviates BS as) access, many BS access,, single base station MBS has only a base station to carry out the multicast and broadcast transmission exactly, and multi-base station MBS is exactly that the multicast and broadcast transmission is carried out in a plurality of base stations.

MBS business for the many BS that support grand diversity insert need have a concentrated MBS wireless resource scheduling device at least in MBS zone (Zone), wherein, be exactly that terminal receives same business from a plurality of base stations.To the MBS business of many base stations, need to support grand diversity, MBS Zone is the set of one group of base station, and they transmit identical multicast broadcast service, and these base stations have identical multicast connection identifier and security association.In the prior art, network work group (NWG) agreement does not also relate to how to realize the MBS wireless resource scheduling, does not relate to Radio Resource yet and how to distribute and describe.Take describing mode though defined the multicast broadcast service Radio Resource in the IEEE802.16e-2005 standard at present, but this describing mode is not optimum mode, and network side can adopt new distribution and describing mode to improve MBS resource scheduling information transmission efficiency.

Summary of the invention

The technical issues that need to address of the present invention are how a kind of scheduling method for wireless resource of supporting grand diversity multi-base station MBS is provided, when supporting that grand diversity multi-base station MBS is professional, by scheduling to the Radio Resource of descending sub frame, clean culture and MBS scheduling conflict not only can be avoided, further system's finite wireless resources can be made full use of.

In order to solve the problems of the technologies described above, the invention provides the scheduling method for wireless resource of a kind of many base station broadcasts multicast service MBS, comprising: the Radio Resource unification of the descending sub frame of all base stations in the MBS zone is configured to two parts; Arbitrary part on the base station in the local service scheduler schedules Radio Resource is used for local service, and local service comprises clean culture or single base station MBS business; Another part in the multi-base station MBS Resource Scheduler scheduling Radio Resource in the MBS zone is used for multi-base station MBS.

Preferably, when configuration multi-base station MBS Radio Resource, configuration multi-base station MBS Radio Resource on the frame of any frame number.

Preferably, when in frame, disposing the multi-base station MBS Radio Resource, arbitrary region in the frame is configured to the multi-base station MBS Radio Resource.

Preferably, when in frame, disposing the multi-base station MBS Radio Resource, the zone that is made of partial continuous symbol and corresponding all subchannels thereof in the OFDM OFDMA descending sub frame is used for the multi-base station MBS scheduling, perhaps the zone that is made of parton channel number and corresponding all symbols thereof in the OFDMA descending sub frame is used for the multi-base station MBS scheduling.

Wherein, in scheduling process, the multi-base station MBS Resource Scheduler in the MBS zone is notified multi-base station MBS Resource Scheduler in other MBS zone or the local scheduler in the MBS zone with the multi-base station MBS occupation condition.

In addition, the local scheduler in the MBS zone is notified terminal with the multi-base station MBS occupation condition by air interface.

Preferably, the Radio Resource that is configured to the multi-base station MBS business can be described with two characteristic parameters, wherein, characteristic parameter is: the frame number sign of multi-base station MBS Radio Resource place frame, multi-base station MBS Radio Resource positional information in frame, and the multi-base station MBS Radio Resource comprises: the actual multi-base station MBS Radio Resource that takies in the multi-base station MBS Radio Resource of configuration, the scheduling process.

Further, the frame number mark is used to identify the pairing frame number mark of multi-base station MBS resource place descending sub frame; Further have under the periodic situation in the frame number feature, the periodic characteristic parameter is described, the periodic feature parameter is represented with the length in multi-base station MBS Radio Resource place frame period and the frame number in the frame period, the 1st, 2 frames in for example per 4 frames, here 4 is exactly Cycle Length, disposes in 1, No. 2 frame of 1,2 expressions to be used for multi-base station MBS service wireless resource zone.

Further, position in this frame or zone are for being used for multi-base station MBS Radio Resource position occupied or zone in this frame.Wherein, position in the frame adopts the IEEE802.16 agreement to be described, and is described one of at least below perhaps adopting: resource units, resource index, number of resources; Zone in the frame can be this frame arbitrary region, and the zone can be represented with symbol offset, subchannel offset, number of symbols, subchannel number in the frame.Zone in the frame also can be that the zone that will be in the OFDM OFDMA descending sub frame be made of partial continuous symbol and corresponding all subchannels thereof is used for the multi-base station MBS scheduling, and the zone in this time frame can the symbolization skew, symbolic number is represented.Zone in the frame also can be that the zone that will be in the OFDMA descending sub frame be made of parton channel number and corresponding all symbols thereof is used for the multi-base station MBS scheduling, and subchannel offset, subchannel number can be used in the zone in this time frame.Zone in the frame also can adopt resource units, resource index and number of resources to represent, operational least resource unit when Resource Unit is configuration here, resource index is meant the starting point of resource units, and number of resources is meant the resource units number that is configured in the frame in the multi-base station MBS service wireless resource zone.

Further, the zone has under the situation of periodic feature in frame, can describe with cyclic parameter, and the same area in for example every frame, said here every frame is meant the frame at configuration multi-base station MBS Radio Resource place.

Further, zone in frame number mark and frame has under the periodic situation, can describe with cyclic parameter, wherein, cyclic parameter is at least one of following: frame number in the frame period of the frame period length of multi-base station MBS Radio Resource place frame, multi-base station MBS Radio Resource place frame, multi-base station MBS Radio Resource be the positional information in the corresponding frame number place frame, the position in first frame period in the frame period.For example, be used for band of position A that the multi-base station MBS Radio Resource is per 4 frames the 1st frame and the 2nd frame position area B and first cycle from frame number vertical shift 100.

Further, belong in the base station under the situation in a plurality of MBS zone, for reserving a multi-base station MBS Radio Resource in each MBS zone that this base station belongs to; The multi-base station MBS Radio Resource that each MBS zone is reserved can be described with the zone in frame number mark and the frame; Under the nonoverlapping situation of multi-base station MBS Radio Resource that is each MBS area configurations, the Radio Resource that the MBS Resource Scheduler in each MBS zone is scheduling to this MBS area configurations is used for the multi-base station MBS in this MBS zone.When overlapping, the MBS Resource Scheduler in each MBS zone needs to coordinate when the scheduling multi-base station MBS, and perhaps a MBS Resource Scheduler is shared in these different MBS zones.Wherein, be not meant for the multi-base station MBS Radio Resource of each MBS area configurations is overlapping: the zone that the multi-base station MBS Radio Resource of each MBS area configurations occupies in descending sub frame is different, and it is not overlapping perhaps to occupy sub-frame frame sequence number marker characteristic.

Further, divide a frequency/frequency range separately and be used for the multi-base station MBS business.

Further, the multi-base station MBS Radio Resource that is used for the configuration of multi-base station MBS scheduling can dynamically be adjusted.

Further, dynamically adjust by network manager according to historical statistical data or local scheduling business/many group of base stations multicast broadcasting service is estimated or the combination of the two is carried out, and notify multi-base station MBS Resource Scheduler in the same MBS zone and the local service scheduler on the base station.

Further, the multi-base station MBS resource is shared in the local service scheduling, and concrete way is: local service scheduler (3) uses the multi-base station MBS resource of unappropriated reservation to be used for the local service scheduling according to multi-base station MBS Resource Scheduler (2) the Real-Time Scheduling result who obtains on the base station; Under the situation that local service scheduling No Assets can be used, the urgency traffic of local scheduling takies the multi-base station MBS service resources of reservation.

Further, the local service scheduler obtains to be meant according to obtaining the Real-Time Scheduling result on the base station:

When the MBS scheduling of resource, be synchronized to local service scheduler on the base station during initiatively in real time MBS scheduling of resource fructufy by the multi-base station MBS Resource Scheduler.

Inform current MBS occupation condition by local service scheduler (3) active or timing cycle request multi-base station MBS Resource Scheduler (2) on the base station.

The scheduling method for wireless resource of a kind of multi-base station MBS provided by the invention has following advantage than prior art:

1. adopt the method for dividing the multi-base station MBS Radio Resource separately can realize that local scheduling (being used for base station clean culture and single base station MBS business) Radio Resource is independently dispatched separately on the multi-base station MBS Radio Resource and base station in MBSZone the zone in;

When a base station belongs to a plurality of MBS Zone,, can realize that each MBSZone that this base station belongs to carries out independent scheduling to the multi-base station MBS Radio Resource of reserving if each MBS Zone disposes independently MBS wireless resource information; If each MBSZone shares the multi-base station MBS Radio Resource of configuration, then be the multi-base station MBS Radio Resource of reserving to be dispatched or shared multi-base station MBS Resource Scheduler by the coordination of each MBS Zone is next.

2. the local service scheduler on the base station can be dispatched in the present frame the not multi-base station MBS resource of the configuration of usefulness, the urgency traffic of the local scheduling on the base station can take configuration MBS resource area, and the multi-base station MBS Resource Scheduler on the realization base station in local scheduling and the MBS Zone zone is shared configuration multi-base station MBS Radio Resource;

3. new allocation unit is adopted in the multi-base station MBS resource allocation, help improving resource mark efficient;

4. adopt new Radio Resource occupied information describing method to having periodic characteristic MBS scheduling of resource result, can improve multi-base station MBS scheduling of resource result's transmission efficiency.If the describing method of this Radio Resource occupied information is used for air interface, helps terminal and adopt the battery saving mode receiving multicast and broadcast service.

Description of drawings

Fig. 1 is that the present invention is used for MBS service wireless resource dividing mode () schematic diagram;

Fig. 2 is first kind of synchronous schematic diagram of MBS resource allocation information of the present invention;

Fig. 3 is the synchronous schematic diagram of second kind of MBS scheduling of resource of the present invention result;

Fig. 4 is the synchronous schematic diagram of the present invention the third MBS scheduling of resource result;

Fig. 5 is MBS resource allocation unit of the present invention and distributes schematic diagram;

Fig. 6 is that the present invention is used for MBS service wireless resource dividing mode (two) schematic diagram.

Embodiment

Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.

At first, inventive concept is described:

When supporting that grand diversity multi-base station MBS is professional, two types scheduler is set, a kind of is the multi-base station MBS Resource Scheduler, one is the local service scheduler; There is the MBS of group of base stations multicast broadcasting service more than Resource Scheduler in each MBSZone, is used for multi-base station MBS service dispatching in the MBS zone; On each base station in the MBS Zone local service scheduler is arranged, the local service scheduler is responsible for unicast service scheduling and single base station MBS service dispatching on this base station.

Because local service scheduler and multi-base station MBS Resource Scheduler all are that this Radio Resource of descending sub frame is dispatched, must will avoid them to distribute the same section of identical descending sub frame earlier, otherwise multi-base station MBS Resource Scheduler and local service scheduler in the MBS Zone will produce conflict to scheduling of resource.Therefore this Radio Resource of descending sub frame need be configured, arbitrary part is used for local service scheduling (local service comprises clean culture or single base station MBS business), and another part is used for the multi-base station MBS business; Be equivalent to all reserve Radio Resource, produce when so avoiding this MBS zone in scheduling of resource fully and conflict to local service and multi-base station MBS.The method of dividing has two kinds at least, will elaborate below.

Configure the multi-base station MBS resource in certain MBS zone at network manager after, need directly or indirectly the local scheduler on multi-base station MBS source synchronous that will the configuration base station in multi-base station MBS Resource Scheduler and the MBS zone; All need after the each scheduling of MBS Resource Scheduler multi-base station MBS Radio Resource occupied information is synchronized on the local service scheduler on each base station; Multi-base station MBS Radio Resource occupied information is meant MBS business actual part that takies in the MBS resource of many base stations of configuration in scheduling process.

Can but be not limited to be undertaken the configuration of Radio Resource by network manager, and after configuration, configuration information is sent to the local service scheduler of each base station and the multi-base station MBS Resource Scheduler in the MBS Zone by network manager.

In scheduling, the multi-base station MBS Resource Scheduler can send to all local service schedulers in the MBS Zone of place to scheduling result, and the local service scheduler sends multi-base station MBS service dispatching result and the local scheduling result combinations received together by air interface.

If a base station belongs to a plurality of MBS Zone; The MBS Resource Scheduler might clash when the Radio Resource of multi-base station MBS is given in the scheduling configuration in these a plurality of MBS Zone.In this case, can dispose a multi-base station MBS Radio Resource for each MBS Zone that this base station belongs to; Pei Zhi multi-base station MBS Radio Resource then can be described with two independent variables equally in this case, promptly, the frame number mark at the multi-base station MBS Radio Resource place of this configuration, and the multi-base station MBS Radio Resource that disposes in the frame of this sequence number is in zone that descending sub frame occupies.In this case, can carry out independent scheduling to the MBS resource of reserving if guarantee each MBS Zone, can not be overlapping between the multi-base station MBS Radio Resource that then needs to reserve for a plurality of MBS Zone.If the zone that the multi-base station MBS Radio Resource of reserving for each MBS Zone occupies in descending sub frame is different, it is not overlapping (for example perhaps to occupy subframe sequence number sign, a BS belongs to two MBSZone, a MBS Zone can only occupy odd-numbered frame so, another one only occupies even frame), the multi-base station MBS Radio Resource of reserving between each MBS Zone that then can guarantee in this case to belong to for this base station is not overlapping, and the MBS Resource Scheduler in each MBS zone is scheduling to the multi-base station MBS that this MBS zone reserved radio resource is used for this MBS zone; If it is overlapping that the MBS resource that a plurality of MBS Zone that belong to for this base station reserve has, the MBS Resource Scheduler between then a plurality of MBS Zone need coordinate when the scheduling multi-base station MBS or they share a MBS Resource Scheduler.

The scheduling that the present invention proposes to the Radio Resource of descending sub frame, not only can avoid the local and interior multi-base station MBS service dispatching conflict of MBS Zone on the base station, can also avoid but base station when belonging to a plurality of MBS Zone the scheduling conflict between different MBS Zone; Further can make full use of system's finite wireless resources.

In second step, key of the present invention is described:

1. two kinds of collocation methods that are used for multi-base station MBS Radio Resource zone in the descending sub frame of OFDMA have been invented; When helping realizing that the MBS that many base stations of the SFN of grand diversity inserts is professional, the many group of base stations multicast broadcasting service on the base station in the professional and MBS Zone of local scheduling is independently dispatched separately; The multi-base station MBS Radio Resource that every kind of collocation method marks off can be dynamic change, thereby can improve the utilization ratio of whole Radio Resource;

2. configuring the MBS Radio Resource can share with the local scheduling business realizing, thereby improves the utilization ratio of whole Radio Resource;

And if a base station belongs to a plurality of MBS Zone; Can be for each MBS Zone reserve a multi-base station MBS Radio Resource, as long as the multi-base station MBS Radio Resource that each MBSZone that belongs to for this base station reserves does not have overlapping relation, then the MBS Resource Scheduler of each MBS Zone can carry out independent scheduling.Otherwise, come the multi-base station MBS Radio Resource of reserving is dispatched or shared MBS Resource Scheduler by the coordination of each MBS Zone.

3. the new smallest allocation unit of definition MBS Radio Resource helps improving resource mark efficient;

4. define the new describing mode of MBS Radio Resource occupied information, improved description efficient; Have the periodic feature business for scheduling result, more can improve scheduling of resource transmission efficiency as a result;

5. define the new describing mode of new smallest allocation unit and occupied information and not only can be used for the transmission of network side, also can be used for air interface transmission the multi-base station MBS Radio Resource.When particularly scheduling result has periodically, help terminal works under battery saving mode.

In the 3rd step, describe the concrete technical measures of the present invention in detail at two kinds of division methods in MBS resource occupation zone in the frame:

(1) vertically divides

For the downlink frame structure of OFDMA, can therefrom mark off certain Radio Resource in proportion and be used as multi-base station MBS; Because grand diversity has only the SFN network just can provide, though among the SFN, different Segment (section) can be adopted in different sectors, but for multicast broadcast service, grand diversity can be crossed over a plurality of sectors, therefore to the SFN network, the Radio Resource of the multicast and broadcast that marks off is to occupy all subchannels.The zone that is used for the multi-base station MBS business in the descending sub frame that marks off in this manner is whole subchannels, the zone that the partial continuous symbol constitutes; The symbol starting point can begin to calculate from either side, recommends from the right side; From the left side of descending sub frame or to count be M symbol on the right side, the symbol terminal point then needs to transmit the value of M and N for from the left side or N symbol counting of right side in the time of synchronous; If M gets default value, only need transmit the value of N when then synchronous.

As shown in Figure 1, M the symbol that begins from the right side (M is 0 figure) of the whole descending sub frame of many base stations multicast broadcast radio resource occupation, to N sign-off, wherein N is greater than M, and the difference between N and the M is K (the N value equals the K value among the figure).The initial value of M, N or M, K can be given the local service scheduler of each base station and the many base stations multicast broadcast resource scheduler in the MBS Zone by configuration concurrency on network manager, as shown in Figure 2.For each MBS Zone, the K value can be according to historical statistical data, the local scheduling business/many group of base stations multicast broadcasting service is estimated or the combination of the two is dynamically adjusted, in case the K value changes, need notify each local service scheduler and many base stations multicast broadcast resource scheduler in this MBS Zone scope.In addition, if any one changes in M, N or M, the K value, all need to notify local service scheduler and many base stations multicast broadcast resource scheduler in this MBS Zone scope.Adopt this mode, the local service scheduler is then independent separately on multi-base station MBS Resource Scheduler in the MBS Zone scope and the base station dispatches local scheduling resource on many base stations multicast broadcast resource and the base station.

The dynamic adjustment of K value can bring following benefit, if estimate certain period many group of base stations multicast broadcasting service demand big and on the base station local scheduling traffic carrying capacity little, the K value can be obtained bigger; If it is little and the local scheduling traffic carrying capacity is big to estimate certain period many group of base stations multicast broadcasting service demand, the K value can be obtained less.Thereby for the user brings maximum return with the operation commercial city.

Aforesaid way just is divided into many group of base stations multicast broadcasting service district and local scheduling district with the Radio Resource of the descending sub frame of OFDMA, and independent separately scheduling if current do not have many group of base stations multicast broadcasting service, then can cause the waste of many base stations multicast broadcast resource; For improving the level of resources utilization, need many base stations of realization multicast broadcast resource to be shared by local scheduling, the promptly current many base stations multicast broadcast resource that does not use can be shared by local scheduling.This needs the multi-base station MBS Resource Scheduler of MBS Zone local service scheduler on the synchronising base station need be with multi-base station MBS scheduling of resource fructufy the time, as shown in Figure 3.When in the MBS Zone the multi-base station MBS Resource Scheduler multi-base station MBS scheduling of resource result notification MBS Zone in during the local service scheduler of base station, it can be used for the local service scheduling to the professional unappropriated multi-base station MBS resource of current multi-base station MBS, thereby realize local scheduling, the multicast broadcast radio resource-sharing of many base stations, improve the Radio Resource service efficiency.

Be synchronized in the time of can be initiatively in real time multi-base station MBS scheduling of resource fructufy when the multi-base station MBS Resource Scheduler of MBS Zone carries out the multi-base station MBS scheduling of resource at every turn on the base station the local service scheduler, the multi-base station MBS Resource Scheduler also can be initiated active synchronization in the cycle; Local service scheduler in the MBS Zone (Fig. 4) with the following methods obtains current multi-base station MBS occupation condition:

(1) active request; Local service scheduler active request multi-base station MBS Resource Scheduler is current multi-base station MBS occupation condition notice local service scheduler;

(2) timing cycle request; Local service scheduler timing periodic request multi-base station MBS Resource Scheduler is informed current multi-base station MBS occupation condition.

No matter adopt which kind of mode, all contain current multi-base station MBS occupation condition in the scheduling of resource object information, come mark with the multi-base station MBS resource that takies in the scheduling process.It is the same with configuration multi-base station MBS resource representation method to take the multi-base station MBS resource representation method, positional information in the frame number mark of as much base station MBS resource and the frame; Can adopt the existing describing mode of IEEE802.16e-2005 air interface equally, also can adopt the new describing mode among the present invention.

When realizing that local scheduling resource and multi-base station MBS scheduling resource are shared, when untapped multi-base station MBS resource is used for the local scheduling business, be preferably used in BE (Best Effort, do one's best) the local scheduling business of type is that multi-base station MBS is professional preferential because reserve the multi-base station MBS resource-area in the descending sub frame.

Do not have under the available situation in the local scheduling resource, the urgency traffic of local service scheduler can take the multi-base station MBS resource of reservation.

It is not high that the description efficient to MBS Radio Resource occupied information is mentioned in the IEEE802.16e-2005 agreement in the front, can adopt the new method of salary distribution to improve description efficient.Current I EEE802.16e air interface describing mode is: the wireless resource information that the multicast broadcast service scheduling that MBS_DATA_IE (or Extended_MBS_DATA_IE) describes takies is vertical shift, subchannel offset/symbol offset, 5 field groups of subchannel number/number of symbols amount to 29bits and represent, the wireless resource information that multicast broadcast service scheduling next time takies is adopted in the same way at next MBS_DATA_IE (or Extended_MBS_DATA_IE) and is described, current MBS_DATA_IE (or Extended_MBS_DATA_IE) does not directly point to next MBS_DATA_IE (or Extended_MBS_DATA_IE) position, finds next MBS_DATA_IE (or Extended_MBS_DATA_IE) but fetch between the position by indication MBS_MAP message.And scheduling is to be unit with the time slot.

Consider that multicast broadcast service need not to consider frequency selection effect, therefore the smallest allocation unit's " time slot " to many group of base stations multicast broadcasting service can define separately, be that the Radio Resource smallest allocation unit of many group of base stations multicast broadcasting service can occupy the multicast and broadcast resource on subchannel whole subchannels or parton channel (for example is whole number of subchannels purposes 1/2,1/4,1/8, or 1/16 etc.), on symbol, occupy symbolic number and can be one or more.The issuable resource fragmentation size of allocation unit size decision, big if desired resource allocation unit increases the subchannel number of allocation unit rather than number of symbols as far as possible.Fig. 5 is exactly a schematic diagram of multi-base station MBS resource allocation result after the new resource allocation unit of employing, and as can be seen, three programs in the multi-base station MBS occupy K symbol altogether on symbol, all occupy whole subchannels on subchannel.

When resource allocation, can begin from any side that division is used for the multi-base station MBS Radio Resource to distribute; If resource units does not occupy whole subchannels, the principle of Fen Peiing is to take subchannel earlier as far as possible so, accounts for new symbolic number then.Like this, can represent with the combination of vertical shift, direction, resource units, index, 5 fields of resource units number for the Radio Resource that takies in multi-base station MBS Radio Resource district, here concordance list is shown in multi-base station MBS Radio Resource zone and begins to distribute from certain side, whole multi-base station MBS Radio Resource zone is numbered the starting point numbering that takies in the multi-base station MBS wireless resource block in certain multi-base station MBS traffic assignments piece with resource units.If determine in advance from that side of multi-base station MBS Radio Resource, then can save this field of direction, if resource units is also determined in advance, so also can save this field of resource units, only need vertical shift, index, 3 field combination of number to represent at last, omit two fields than original method for expressing, if the resource units of acquiescence is suitable, index, two fields of number also need less position just can represent.

For business real-time, fixed-bandwidth, its scheduling result has periodically so, the multi-base station MBS Resource Scheduler only needs once the periodic scheduling feature to be passed to multi-base station MBS framing function point and local service scheduler, and need not all transmit, can improve the transmission efficiency of schedule information so greatly. at every turnThe multi-base station MBS Resource Scheduler can adopt cyclic parameter to be described when transmitting scheduling result information like this.Wherein the frame number mark can adopt Cycle Length and in the cycle frame number represent that and expressions such as index, number can be adopted in the band of position in the frame, may also need the positional information in first cycle simultaneously.

Like this in the MBS Zone multi-base station MBS Resource Scheduler during the local service scheduler of base station in the multi-base station MBS scheduling of resource result notification MBS Zone or other functive, just can use a few resources schedule information.In like manner, this sample loading mode also can be used for the scheduling result that air interface is used for base station notice terminal multi-base station MBS.After terminal is received scheduling result, can adopt Idle pattern or Sleep pattern to receive the multi-base station MBS business according to actual conditions, thereby reach purpose of power saving.

Three kinds of synchronously concrete modes below in conjunction with Fig. 2, Fig. 3, Fig. 4 are further described.

First kind of multi-base station MBS resource that is meant 1 pair of configuration of network manager implemented the method for synchronization, as shown in Figure 2, specifically comprises following steps:

201) 1 configuration of network manager multi-base station MBS resource division result is synchronized to the multi-base station MBS Resource Scheduler 2 in the MBS Zone, the multi-base station MBS resource allocation information can be used the value of M and N, the perhaps value of M (when N gets default value), perhaps the value of K (when N gets default value) expression gets final product.

202) 1 configuration of network manager multi-base station MBS resource division result is synchronized to the local service scheduler 3 in the MBS Zone, the multi-base station MBS resource allocation information can be used the value of M and N, the perhaps value of M (when N gets default value), perhaps the value of K (when N gets default value) expression gets final product.

Second kind of multi-base station MBS Resource Scheduler that is meant MBS Zone initiated synchronously real-time multi-base station MBS scheduling of resource result, as shown in Figure 3, specifically comprises following steps:

Multi-base station MBS Resource Scheduler 2 sends multi-base station MBS resource scheduling information response message to the local service scheduler 3 in the MBS Zone, the resource scheduling information response message comprises current multi-base station MBS scheduling of resource result, multi-base station MBS scheduling of resource result both can adopt describing mode among the 802.16e-2005, also can adopt the area information that occupies in frame number mark and the frame to represent.

The third is meant the initiatively current multi-base station MBS resource of the multi-base station MBS Resource Scheduler request Real-Time Scheduling situation in MBS Zone of base station, as shown in Figure 4, specifically comprises following steps:

401) the local service scheduler on the base station 3 sends multi-base station MBS resource scheduling information request message to multi-base station MBS Resource Scheduler 2;

402) multi-base station MBS Resource Scheduler 2 sends multi-base station MBS resource scheduling information response message to the local service scheduler 3 in the MBS Zone, the resource scheduling information response message comprises current multi-base station MBS scheduling of resource result, the multi-base station MBS resource scheduling information promptly can adopt describing mode among the 802.16e-2005, also can adopt the area information that occupies in frame number mark and the frame to represent.

(2) laterally divide

The resource division mode of mentioning in () vertically divides is in SFN, marks off a part of Radio Resource specially as the multi-base station MBS business, and this part Radio Resource takies whole subchannels, takies the partial continuous symbol (taking number of symbols is K).Also have a kind of horizontal dividing mode, can divide a frequency/frequency range separately and be used for the multi-base station MBS business; For example at the SFN network, the Radio Resource that is used for the multi-base station MBS business in the descending sub frame takies the zone of whole symbols (will remove the symbol that descending sub frame is taken by prefix and FCH/DL_MAP), parton channel (the parton channel can comprise the numbering of one or more groups of subchannels) expression exactly, as shown in Figure 6.Under this dividing mode, the groups of subchannels number that the multi-base station MBS business takies also can be according to historical statistical data, the local scheduling business/many group of base stations multicast broadcasting service is estimated or the combination of the two is dynamically adjusted, to improve the utilization ratio of whole Radio Resource.

This programme in resource division mode and (one) vertically divide different, all the other technical issues that need to address and solution all are similarly, below brief description.

During Radio Resource that certain MBS Zone initial setting up multi-base station MBS business takies, or the multi-base station MBS business of dividing is when taking Radio Resource and changing (when groups of subchannels number that takies or numbering change), local service scheduler on multi-base station MBS service dispatcher in the groups of subchannels numbering notice MBS Zone that network manager all needs the multi-base station MBS business is taken and the base station, similar with Fig. 2.

For realizing local service (comprising clean culture and single base station MBS business) and the multicast broadcast radio resource-sharing of many base stations, in the MBS Zone the multi-base station MBS Resource Scheduler the multi-base station MBS scheduling of resource local service scheduler of base station in the real-time informing MBS Zone as a result, local service scheduler on the base station can be according to the professional unappropriated multi-base station MBS resource of current multi-base station MBS is used for own local service scheduling, thereby realize the many base stations multicast broadcast radio resource-sharing in base station local scheduling business, the MBS Zone, improve the Radio Resource service efficiency.When adopting this mode to realize local scheduling business, the multicast broadcast radio resource-sharing of many base stations, which Segment that the groups of subchannels of the in advance definite many base stations of needs multicast broadcast radio resource can be used to local scheduling shares.

Multi-base station MBS Resource Scheduler active or regularly synchronous in real time to the interior base station local service scheduler of MBS Zone multi-base station MBS resource occupation information, similar with Fig. 3.

The local service scheduler of the base station in the MBS Zone also can be regularly or active request multi-base station MBS Resource Scheduler give the MBSZone local service scheduler of interior base station current multi-base station MBS occupation condition synchronously, similar with Fig. 4.

When realizing local service scheduling resource and the resource-sharing of multi-base station MBS service dispatching, when untapped multi-base station MBS resource is used for the local scheduling business, be preferably used in BE (Best Effort, do one's best) the local scheduling business of type, professional preferential because the multi-base station MBS resource of reserving in the descending sub frame is MBS.

For this multi-base station MBS Radio Resource dividing mode, similar method during method and the transmission as a result as a result of the least unit of multi-base station MBS allocation of radio resources and multi-base station MBS wireless resource scheduling can be adopted fully and vertically divide with ().The resource smallest allocation unit that is the multi-base station MBS business can occupy one or more symbols at the whole subchannels or the parton channel that can occupy on the subchannel under this dividing mode on symbol.

For business real-time, fixed-bandwidth, its schedule information has periodically so, the multi-base station MBS Resource Scheduler only needs once the periodic scheduling feature to be passed to local service scheduler or other functive of base station, and need not all transmit, can improve the transmission efficiency of schedule information so greatly. at every turnThe multi-base station MBS Resource Scheduler also only needs to transmit the multi-base station MBS resource place frame number sign that takies when transmitting schedule information like this, and in frame positional information, and can adopt cyclic parameter; Wherein frame number sign can adopt Cycle Length and the frame number in the cycle, and positional information can adopt index, number to wait to represent, may also need the positional information in first cycle simultaneously in the frame.

Like this in the MBS Zone multi-base station MBS Resource Scheduler during the local service scheduler of base station in the MBS scheduling of resource result notification MBS Zone or other functive, just can save more resource.In like manner, this sample loading mode also can be used for the schedule information that air interface is used for base station notice terminal multi-base station MBS.After terminal is received schedule information, can adopt Idle pattern or Sleep pattern to receive the multi-base station MBS business according to actual conditions, thereby reach purpose of power saving.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Industrial applicibility

The present invention can realize multi-base station MBS Radio Resource and basis in the MBS Zone zone The ground resource is independently scheduling separately; For the base station that belongs to a plurality of MBS Zone zone; When one When individual base station belongs to a plurality of MBS Zone, can realize each MBS that this base station belongs to Zone carries out independent scheduling to the multi-base station MBS Radio Resource of configuration, or by each The coordination of MBS Zone comes the multi-base station MBS Radio Resource of reserving is dispatched or is total to Enjoy a multi-base station MBS Resource Scheduler. And the local service scheduling can be used current The multi-base station MBS resource of usefulness not in the frame realizes local service and the wireless money of multi-base station MBS Share in the source; The multi-base station MBS resource is distributed the new allocation unit of employing, be conducive to improve Resource mark efficient; Adopt newly having periodic characteristic multi-base station MBS scheduling of resource result The scheduling describing method, can improve the transmission efficiency of multi-base station MBS resource scheduling information. If the describing method of this schedule information is used for air interface, is conducive to terminal and adopts power saving The pattern receiving multicast and broadcast service.

Claims

1. the scheduling method for wireless resource of the MBS of base station broadcast multicast service more than a kind is characterized in that, comprising:

The Radio Resource unification of the descending sub frame of all base stations in the MBS zone is configured to two parts;

Arbitrary part on the base station in the local service scheduler schedules Radio Resource is used for local service, and local service comprises clean culture or single base station MBS business, and the another part in the multi-base station MBS Resource Scheduler scheduling Radio Resource in the MBS zone is used for multi-base station MBS.

2. dispatching method according to claim 1 is characterized in that:

When configuration multi-base station MBS Radio Resource, the described multi-base station MBS Radio Resource of configuration on the frame of any frame number.

3. dispatching method according to claim 1 is characterized in that:

In frame, during the described multi-base station MBS Radio Resource of configuration, arbitrary region in the frame is configured to described multi-base station MBS Radio Resource.

4. dispatching method according to claim 1 is characterized in that:

In frame during the described multi-base station MBS Radio Resource of configuration, the zone that is made of partial continuous symbol and corresponding all subchannels thereof in the OFDM OFDMA descending sub frame is used for the multi-base station MBS scheduling, perhaps the zone that is made of parton channel number and corresponding all symbols thereof in the OFDMA descending sub frame is used for described multi-base station MBS scheduling.

5. dispatching method according to claim 1 is characterized in that:

In described scheduling process, the multi-base station MBS Resource Scheduler in the MBS zone is notified multi-base station MBS Resource Scheduler in other MBS zone or the local scheduler in the MBS zone with described multi-base station MBS occupation condition.

6. dispatching method according to claim 5 is characterized in that:

Local scheduler in the described MBS zone is notified terminal with described multi-base station MBS occupation condition by air interface.

7. according to the described dispatching method of claim 1-6, it is characterized in that:

Described multi-base station MBS Radio Resource uses two characteristic parameters to be described, wherein, described characteristic parameter is: the frame number sign of described multi-base station MBS Radio Resource place frame, described multi-base station MBS Radio Resource positional information in frame, and described multi-base station MBS Radio Resource comprises: the actual multi-base station MBS Radio Resource that takies in the multi-base station MBS Radio Resource of configuration, the scheduling process.

8. dispatching method according to claim 7 is characterized in that:

Described frame number sign is used for the frame number of the described multi-base station MBS Radio Resource of mark place descending sub frame correspondence;

Have under the periodic situation in described frame number feature, the periodic characteristic parameter is described, and wherein, described periodic feature parameter is represented with the length and the frame number in the described frame period in described multi-base station MBS Radio Resource place frame period.

9. dispatching method according to claim 7 is characterized in that:

The positional information that positional information in the described frame occupies for multi-base station MBS Radio Resource described in this frame, wherein, position in the described frame adopts the IEEE802.16 agreement to be described, and is described one of at least below perhaps adopting: resource units, resource index, number of resources.

10. dispatching method according to claim 9 is characterized in that:

The zone has under the situation of periodic feature in frame, and the periodic parameter is described, and wherein, described cyclic parameter is used for illustrating that the positional information in the described frame at described multi-base station MBS Radio Resource place is identical.

11. dispatching method according to claim 7 is characterized in that:

Zone in described frame number mark and described frame has under the periodic situation, describe with cyclic parameter, wherein, described cyclic parameter is at least one of following: frame number in the frame period of the frame period length of described multi-base station MBS Radio Resource place frame, described multi-base station MBS Radio Resource place frame, described multi-base station MBS Radio Resource be the positional information in the corresponding frame number place frame, the position in first frame period in the frame period.

12. dispatching method according to claim 1 is characterized in that:

Belong in the base station under the situation in a plurality of MBS zone, be the multi-base station MBS Radio Resource of each MBS area configurations under the described base station;

Under the nonoverlapping situation of described multi-base station MBS Radio Resource that is each MBS area configurations, described multi-base station MBS Resource Scheduler in each MBS zone is dispatched the Radio Resource of this MBS area configurations, and be used for the multi-base station MBS in this MBS zone, wherein, not overlapping being meant of described multi-base station MBS Radio Resource for each MBS area configurations: the position difference that the described multi-base station MBS Radio Resource of each MBS area configurations occupies in descending sub frame, the frame number feature that perhaps occupies subframe is not overlapping;

Under the overlapping situation of the described multi-base station MBS Radio Resource that is each MBS area configurations, the described multi-base station MBS Resource Scheduler in each MBS zone needs to coordinate when the scheduling multi-base station MBS, perhaps shares a multi-base station MBS Resource Scheduler.

13., it is characterized in that according to right 1 described dispatching method:

Divide a frequency/frequency range separately and be used for the multi-base station MBS business.

14., it is characterized in that according to claim 4 or 13 described dispatching methods:

The described zone that is used for the multi-base station MBS scheduling can dynamically be adjusted.

15. dispatching method according to claim 14 is characterized in that:

Described dynamic adjustment according to historical statistical data or local scheduling business/many group of base stations multicast broadcasting service is estimated or the combination of the two is carried out, and is notified described multi-base station MBS Resource Scheduler in the same MBS zone and the described local service scheduler on the base station by network manager.

16. dispatching method according to claim 1 is characterized in that:

Described multi-base station MBS resource is shared in the local service scheduling, and concrete way is: the local service scheduler uses the multi-base station MBS resource of unappropriated configuration to be used for the local service scheduling according to the multi-base station MBS Resource Scheduler Real-Time Scheduling result who obtains on the described base station; Or under the situation that local service scheduling No Assets can be used, the urgency traffic of local scheduling takies the multi-base station MBS service resources of configuration.

17. dispatching method according to claim 16 is characterized in that, the local service scheduler obtains to be meant according to obtaining the Real-Time Scheduling result on the described base station:

When the MBS scheduling of resource, be synchronized to local service scheduler on the described base station during initiatively in real time MBS scheduling of resource fructufy by described multi-base station MBS Resource Scheduler.

18. dispatching method according to claim 16 is characterized in that, the local service scheduler obtains to be meant according to obtaining the Real-Time Scheduling result on the described base station:

Inform current MBS occupation condition by active of local service scheduler or the described multi-base station MBS Resource Scheduler of timing cycle request on the described base station.

19. dispatching method according to claim 1 is characterized in that:

Described MBS Resource Scheduler in the described MBS zone is also referred to as centralized scheduler, and each MBS zone has each base station in a centralized scheduler, the described MBS zone that a local scheduler is arranged.