CN101873703A

CN101873703A - Dispatching method and communication equipment of space division multiple access resources

Info

Publication number: CN101873703A
Application number: CN200910082975A
Authority: CN
Inventors: 赵孟凯; 刘阳
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-04-27
Filing date: 2009-04-27
Publication date: 2010-10-27
Anticipated expiration: 2029-04-27
Also published as: CN101873703B

Abstract

The invention discloses a dispatching method and communication equipment of space division multiple access resources. The method comprises the following steps: transferring the users requiring source distribution with the highest priority level in the resource distribution priority level array to a resource distribution array; distributing resources to the users requiring the resource distribution; deleting the users or the user groups which do not conform to the preset screening rule of the users requiring the resource distribution in the resource distribution priority level array and the resource distribution array; judging whether the isolation degree of the users in the resource distribution priority level array and the users or the user groups in the resource distribution array conform to the preset isolation degree threshold value or not; and carrying out the space division multiple access resource dispatching on the users in the resource distribution priority level array and the users or the user groups in the resource distribution array according to the judging results. Through the invention, factors such as the signal channel condition and the like can be further considered in the space division multiple access resource dispatching process except the isolation degree among users, so the system after the resource dispatching has better integral thuoughput.

Description

A kind of dispatching method of space division multiple access resources and communication equipment

Technical field

The present invention relates to communication technical field, particularly a kind of dispatching method of space division multiple access resources and communication equipment.

Background technology

Smart antenna is a kind of bilateral antenna that is installed in the scene, base station, obtains directivity by one group of fixed antenna unit that has the programmable electronic phase relation, and can obtain the directional characteristic of each link between base station and the travelling carriage simultaneously.The principle of smart antenna is the direction that wireless signal guide is concrete, produce the spatial orientation wave beam, make antenna main beam aim at subscriber signal arrival direction DOA (Direction ofArrival), secondary lobe or zero falls into aims at the interference signal arrival direction, reaches the purpose of fully efficiently utilizing mobile subscriber's signal and deletion or suppressing interference signal.Simultaneously, intelligent antenna technology utilizes the difference of signal space feature between each mobile subscriber, receive with launching a plurality of mobile subscriber's signals on same channel by the array antenna technology mutual interference does not mutually take place, make the transmission of the utilization of radio-frequency spectrum and signal more effective.Under the situation that does not increase system complexity, use smart antenna can satisfy the needs of the service quality and the network capacity extension.

Smart antenna application is extensive, it improve system communication quality, alleviate radio communication growing with the frequency spectrum resource deficiency contradiction and reduce the entire system cost and improve aspect such as system management, all have the advantage of uniqueness.

Smart antenna can wireless signal guide is concrete direction, produce the spatial orientation wave beam, make antenna main beam aim at subscriber signal arrival direction DOA, secondary lobe or zero falls into aims at the interference signal arrival direction, reaches the purpose of fully efficiently utilizing mobile subscriber's signal and deletion or suppressing interference signal.Simultaneously, utilize the difference of signal space feature between each mobile subscriber, receive with launching a plurality of mobile subscriber's signals on same channel by the array antenna technology mutual interference does not mutually take place, make the transmission of the utilization of radio-frequency spectrum and signal more effective.

Under the situation that does not increase system complexity, use smart antenna can satisfy the needs of the service quality and the network capacity extension.In fact, the application of smart antenna makes the communication resource no longer be confined to time division multiple access (the Time Division Multiple Access of time-domain, TDMA), the frequency division multiple access of frequency domain (FrequencyDivision Multiple Access, FDMA) or the sign indicating number territory code division multiple access (Code Division MultipleAccess, CDMA), but further be extended to spatial domain, belong to space division multiple access (Space DivisionMultiple Access, SDMA) system.

Space division multiple access is a kind of access mode, is a kind of technology that realizes space division multiplexing by the wave beam forming ability of smart antenna.Space division multiple access suppresses phase mutual interference between the user by different wave beam, makes a plurality of users identical interface-free resources in the using system simultaneously, thereby realizes space division multiple access.Be similar to the technological thought of realizing the multiple access access in the CDMA technology by the orthogonality of code word, the SDMA technology then is to utilize the orthogonality in space to realize that multiple access inserts.At synchronization, use a plurality of users of identical interface-free resources to be the empty user of branch matched group.

Currently usedly empty divide the user to match algorithm, generally just consider the requirement of isolation between the user, just can match as long as satisfy insulated degree requirement between the user, concrete realization flow comprises:

As shown in Figure 1, space isolation measuring and calculating step is specially:

Step S101, obtain the spatial separation parameter between portable terminal.

Spatial separation parameter wherein specifically is meant the main peak power of the ratio of characteristic value of Bo Dajiao based on the portable terminal signal, space covariance matrix and power angular spectrum and three characteristic parameters of the ratio of secondary peak power.By the spatial separation parameter, can judge a plurality of portable terminals when carrying out the resource-sharing of space division multiple access, each other the influence degree of the power of other portable terminals being exported because signal inserts.

System resource scheduling step is specially:

Step S102, judge whether the space isolation parameter between portable terminal meets the demands.

When the space isolation parameter between portable terminal meets the demands, change step S103 over to;

When the space isolation parameter between portable terminal does not meet the demands, change step S104 over to.

Step S103, satisfactory portable terminal is carried out the system resource scheduling of space division multiple access, realize that system resource is multiplexing.

Step S104, the system resource of undesirable portable terminal is distinguished, no longer carried out the resource multiplex of space division multiple access.

In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:

The existing empty user of branch matches algorithm and only carries out the empty user's of branch pairing by insulated degree requirement, do not consider correlative factors such as customer location, channel condition, though overall system performance is better than the systematic function of not using empty timesharing, be not the optimization scheme that systematic function promotes.

Summary of the invention

The invention provides a kind of dispatching method and device of space division multiple access resources, when carrying out the process of scheduling of resource in the system that uses space division multiple access to be implemented in, on the basis of considering isolation between the user, can further consider each user's factors such as channel condition, thereby make the system that carries out after the scheduling of resource have the better overall throughput.

For achieving the above object, one aspect of the present invention provides a kind of dispatching method of space division multiple access SDMA resource, comprising:

The resource user to be allocated that has limit priority in the priority of resource allocation formation is transferred in the resource allocation formation, is described resource user Resources allocation to be allocated;

Delete the user or the user's group that do not meet default resource user screening rule to be allocated in described priority of resource allocation formation and the described resource allocation formation;

Whether the isolation of judging user in the described priority of resource allocation formation and the user in the described resource allocation formation or user group meets default isolation threshold value;

According to the result of described judgement, the user in user in the described priority of resource allocation formation and the described resource allocation formation or user's group are carried out space division multiple access resource scheduling.

Wherein, described the resource user to be allocated that has limit priority in the priority of resource allocation formation is transferred in the resource allocation formation, after described resource user Resources allocation to be allocated, also comprises:

The user of described priority of resource allocation formation and the user in the described resource allocation formation or user's group are sorted according to the channel condition parameter.

Wherein, described user and the user in the described resource allocation formation or user's group with described priority of resource allocation formation sorts according to the channel condition parameter, is specially:

The recommendation transmission block size RTBS information of returning according to each user, the user of described priority of resource allocation formation and the user in the described resource allocation formation or user's group are sorted from big to small.

Wherein, whether the described isolation of judging that user in user in the resource allocation formation and the described resource allocation formation or user organize meets default isolation threshold value, is specially

According to described ordering, judge whether the isolation of user in the described resource allocation formation and the user in the described resource allocation formation or user group meets default isolation threshold value.

Wherein, described default resource user screening rule to be allocated is specially:

Allow or forbid the user in the appointed area is carried out resource allocation.

Wherein, described appointed area, specifically determine according to following standard:

The user's of described appointed area transmitting power reduces transmitting power to the influence of throughput of system and other regional users and reduces comparative result to the influence of throughput of system; Or,

The size of the user's of described appointed area throughput; Or,

The user's of described appointed area channel quality quality.

Wherein, determine also to comprise the affiliated area of determining described user before the described appointed area, be specially:

Receive the sub-district, described user place that described user periodically reports and the broadcast channel received signal code channel power P CCPCH RSCP of described user's adjacent cell;

Determine the ratio of the broadcast channel received signal code channel power of the adjacent cell that the broadcast channel received signal code channel power of sub-district, described user place and described user are the strongest;

According to the matching relationship of described ratio and default ratio threshold value, determine the zone that described user is affiliated.

Wherein, also comprise:

When described user inserted described system, radio network controller (RNC) was provided with the broadcast channel received signal code channel power that described user periodically reports sub-district, described user place and described user's adjacent cell.

Receive recommendation transmission block size RTBS and channel peak transfer rate that described user returns;

Determine described user's code check according to the described recommendation transmission block size and the ratio of described channel peak transfer rate;

According to the matching relationship of described code check and default code check threshold value, determine the zone that described user is affiliated.

Wherein, described according to the result who judges, the user in user in the described priority of resource allocation formation and the described resource allocation formation or user's group are carried out sky branch scheduling of resource, specifically comprise:

The isolation of user in judging described priority of resource allocation formation and the user in the described resource allocation formation or user's group meets when presetting the isolation threshold value, user in user in the described priority of resource allocation formation and the described resource allocation formation is formed new user's group, or the user in the described priority of resource allocation formation added user group in the described resource allocation formation, forms new user and organize;

The isolation of user in judging described priority of resource allocation formation and the user in the described resource allocation formation or user's group does not meet when presetting the isolation threshold value, and the user in the described priority of resource allocation formation is deleted.

Wherein, described user in user in the described priority of resource allocation formation and the described resource allocation formation is formed new user group, or the user in the described priority of resource allocation formation added user group in the described resource allocation formation, and forms after new user organizes, also comprise:

Judge whether number of users in the described new user group surpasses default user and organize amount threshold;

When the number of users in the result of described judgement organizes for described new user is organized amount threshold above default user, the described new user in the described resource allocation formation is organized deletion, the user in the described priority of resource allocation formation is deleted;

When the result of described judgement organizes amount threshold for the number of users in described new user's group not have to surpass the user who presets, the user in the described resource allocation formation is deleted.

Wherein, delete after the user or user's group who does not meet default resource user screening rule to be allocated in described priority of resource allocation formation and the described resource allocation formation, or, after the deletion of the user in the described resource allocation formation, also comprise:

Judge whether described priority of resource allocation formation or described resource allocation formation are empty;

When described priority of resource allocation formation or described resource allocation formation when being empty, stop described empty branch scheduling of resource.

On the other hand, the present invention also provides a kind of communication equipment, comprising:

Processing module, the resource user to be allocated that is used for the priority of resource allocation formation is had limit priority is transferred in the resource allocation formation, is described resource user Resources allocation to be allocated;

The screening module is used for deleting described priority of resource allocation formation and the described resource allocation formation user or the user group that do not meet default to be allocated resource user screening rule of described processing module after handling;

The isolation judge module is used for judging whether the user of the described priority of resource allocation formation of screening through described screening module and the isolation of the user in the described resource allocation formation or user's group meet default isolation threshold value;

Scheduler module is used for the judged result according to described isolation judge module, and the user in user in the described priority of resource allocation formation and the described resource allocation formation or user's group are carried out space division multiple access resource scheduling.

Wherein, described communication equipment also comprises:

Order module is used for that described processing module is handled the user of described priority of resource allocation formation afterwards and user or user's group of described resource allocation formation sorts according to the channel condition parameter.

Wherein, described communication equipment also comprises:

Receiver module is used to receive the sub-district, described user place that described user periodically reports and the broadcast channel received signal code channel power P CCPCH RSCP of adjacent cell, and/or described user the recommendation transmission block size RTBS and the channel peak transfer rate that return;

Identification module is used for the information that receives according to described receiver module, discerns the zone under the described user.

Wherein, described communication equipment also comprises:

The number of users judge module, whether the number of users that is used for judging new user's group that described scheduler module generates surpasses default user is organized amount threshold;

The formation judge module is used to judge whether described priority of resource allocation formation or described resource allocation formation are empty.

On the other hand, the present invention also provides a kind of dispatching method of space division multiple access SDMA resource, comprising:

The user of described priority of resource allocation formation and the user in the described resource allocation formation or user's group are sorted according to the channel condition parameter;

According to described ordering, judge whether the isolation of user in the described priority of resource allocation formation and the user in the described resource allocation formation or user group meets default isolation threshold value;

Delete the user or the user's group that do not meet default resource user screening rule to be allocated in described priority of resource allocation formation and the described resource allocation formation.

The recommendation transmission block size RTBS that returns according to each user, the user of described priority of resource allocation formation and the user in the described resource allocation formation or user's group are sorted from big to small.

Wherein, described result according to described judgement carries out space division multiple access resource scheduling to the user in user in the described resource allocation formation and the described resource allocation formation or user's group, specifically comprises:

When the result of described judgement organizes amount threshold for the number of users in described new user's group not have to surpass the user who presets, the user in the described priority of resource allocation formation is deleted.

Wherein, delete the user or the user's group that do not meet default resource user screening rule to be allocated in described priority of resource allocation formation and the described resource allocation formation, or, after the deletion of the user in the described priority of resource allocation formation, also comprise:

When described priority of resource allocation formation or described resource allocation formation when being empty, stop described space division multiple access resource scheduling.

Order module is used for that described processing module is handled the user of described priority of resource allocation formation afterwards and user or user's group of described resource allocation formation sorts according to the channel condition parameter;

The isolation judge module is used for the order of arranging according to described order module, judges whether the user in the described priority of resource allocation formation and the isolation of the user in the described resource allocation formation or user's group meet default isolation threshold value;

Wherein, described communication equipment also comprises:

The screening module is used for deleting described priority of resource allocation formation and the described resource allocation formation user or the user group that do not meet default to be allocated resource user screening rule of described processing module after handling.

Wherein, described communication equipment also comprises:

Compared with prior art, the present invention has the following advantages:

By using the present invention, can when carrying out space division multiple access resource scheduling, not only consider the isolation between the user, and can further consider user's regional characteristics and channel condition, thereby, make the system that carries out behind the space division multiple access resource scheduling have better overall throughput and systematic function.

Description of drawings

In order to be illustrated more clearly in technical scheme of the present invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the schematic flow sheet of space isolation measuring and calculating step in the prior art;

The schematic flow sheet of the dispatching method of a kind of space division multiple access resources that Fig. 2 provides for the embodiment of the invention;

Fig. 3 is the schematic diagram in user distribution zone in the embodiment of the invention;

Fig. 4 receives SIR for user in the embodiment of the invention and sends the map image schematic diagram of TB piece;

The structural representation of a kind of communication equipment that Fig. 5 provides for the embodiment of the invention;

The schematic flow sheet of the dispatching method of another space division multiple access resources that Fig. 6 provides for the embodiment of the invention;

The structural representation of another communication equipment that Fig. 7 provides for the embodiment of the invention;

The schematic flow sheet of the dispatching method of a kind of space division multiple access resources that Fig. 8 provides for the embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

In the present invention, a kind of dispatching method of space division multiple access resources has been proposed, the empty matching method that divides the user of promptly a kind of SDMA, this method is applicable to the HSPA system that uses SDMA.

At first, need to prove,, need the precondition that possesses specific as follows in the system in order to realize the dispatching method of this space division multiple access resources:

Because SDMA can introduce in the bigger sub-district and disturb and presence of intercell interference, therefore, after system applies SDMA, when user in the system is carried out scheduling of resource, still is the distribution of preferentially carrying out the time-code resource.Only under the not enough condition of time-code resource, just consider that according to space isolation SDMA's is multiplexing.So this is the mode of a kind of passive use SDMA.

Under such prerequisite, the embodiment of the invention has proposed a kind of dispatching method of space division multiple access resources, and as shown in Figure 2, the schematic flow sheet for this method specifically may further comprise the steps:

Step S201, the resource user to be allocated that has limit priority in the priority of resource allocation formation is transferred in the resource allocation formation, is resource user Resources allocation to be allocated.

At first, set up two formations in system, one is the priority of resource allocation formation, under the situation of not considering SDMA, generates the user list of resource to be allocated according to the dispatching priority of each user in the system, forms the priority of resource allocation formation; Another is the resource allocation formation, and for the user in this formation, system carries out corresponding system resources and distributes.

In step S201, if there is surplus resources in the system, then can be in this step according to the dispatching priority order, constantly satisfactory user is transferred to the resource allocation formation by the priority of resource allocation formation, thereby finish resource allocation, in system, no longer have surplus resources, so far this user, under the situation of not considering SDMA, finish distribution to system resource.

After having assigned like this, many satisfactory users have had corresponding system resources, and are still, bigger at number of users, or under the system resource condition of limited, still can exist the user who needs resource in a large number not to be assigned to corresponding system resources, at this moment, system need consider SDMA, be about to meet the scheduling that necessarily required user and the current user who has been assigned with resource carry out empty branch resource, realize the resource multiplex of SDMA, thereby, the maximum using of realization system resource.

Compared with prior art, the difference of technical scheme proposed by the invention is, prior art is when carrying out the scheduling of empty branch resource, only consider the insulated degree requirement between the user, technical scheme proposed by the invention then can further be considered situations such as user zone of living in and channel status, in the present embodiment, preferentially carry out user's screening of space division multiple access resource scheduling according to user zone of living in.

Do not meet user or user's group of default resource user screening rule to be allocated in step S202, deletion priority of resource allocation formation and the resource allocation formation.

Wherein, Yu She resource user screening rule to be allocated is specially:

System allows or forbids the user of appointed area is carried out resource allocation.

The realization that it is pointed out that this step need be with the division of user area as prerequisite, and the concrete division foundation and the process in user zone of living in are specific as follows:

According to the RTBS information that each user fed back in the system, this user position information of acquisition that can be indirect and/or channel condition.

Owing to carry out empty dividing the user of pairing need share power resource, therefore,, realize better system performance in order to guarantee the entire throughput of system, wish with transmitting power reduce drop to minimum to the influence of entire system throughput.In view of this consideration, need select the zone of carrying out dispatching space division.Concrete user area selection principle includes the following aspects:

For convenience of description, each the user's present located zone in the existing supposing the system is specially three zones shown in Fig. 3: zone 1, zone 2 and zone 3.Wherein, the trizonal user map image that receives SIR and send the TB piece as shown in Figure 4.

1, the user's of appointed area transmitting power reduces transmitting power to the influence of throughput of system and other regional users and reduces comparative result to the influence of throughput of system.

As can be seen from Figure 4, for the user in zone 1 and the zone 3, when unit reduces the TBS of its transmission, the reduction amount of the SIR that it received is less slightly than the user in zone 2, promptly compare the user in zone 2, reducing the influence of entire system throughput of the user's in zone 1 and zone 3 transmitting power is lower.Therefore, the user that system pays the utmost attention to zone 3 and zone 1 carries out the scheduling of SDMA resource, promptly carries out sky and divides pairing.

2, the size of the user's of appointed area throughput.

If the factor of CONSIDERING EDGE user throughput, can make (the i.e. zone 1) user of the less cell edge of throughput not participate in empty the branch, promptly only consider the user in zone 2 and zone 3 is carried out the sky branch, and the user who pays the utmost attention to the bigger zone 3 of throughput carries out the sky branch.

3, the user's of appointed area channel quality quality.

If consider the factor of user's covering power, can make bad (the i.e. zone 1) user of channel condition not participate in empty the branch, promptly only consider the user in zone 2 and zone 3 is carried out sky branch, and the user who pays the utmost attention to the zone 3 of channel quality optimum carries out the sky branch.

It is to be noted; in concrete enforcement scene; above-mentioned three user area selection principles listing can only consider one of them or several; be that the zone is only selected according to one of them or several users zone selection principle by system; and user under this zone carried out space division multiple access resource scheduling; promptly user under this zone is carried out sky and divide pairing, such variation is the strategy adjustment of making according to the real needs of system, does not influence protection scope of the present invention.

Further, based on above-mentioned consideration, before the user is carried out the SDMA scheduling of resource, need judge user residing zone in the sub-district, and such judgement can have two kinds of methods:

Method one, specifically may further comprise the steps:

The sub-district, user place that the reception user periodically reports and the broadcast channel received signal code channel power P CCPCH RSCP of adjacent cell; Determine the ratio of the broadcast channel received signal code channel power of the adjacent cell that the broadcast channel received signal code channel power of sub-district, user place and user are the strongest; According to the matching relationship of ratio and default ratio threshold value, determine the zone that the user is affiliated.

Promptly, when subscriber access system, radio network controller (RNC) is provided with the periodically broadcast channel received signal code channel power of sub-district, report of user place and adjacent cell of user, and the ratio of the pilot signal strength of the strongest adjacent cell that this district pilots signal strength signal intensity that system receives according to the user and this user receive and the relation of predetermined threshold judge which zone this user falls into.

Method two, specifically may further comprise the steps:

Receive recommendation transmission block size RTBS and channel peak transfer rate that the user returns; Determine user's code check according to recommending the transmission block size and the ratio of channel peak transfer rate; According to the matching relationship of code check and default code check threshold value, determine the zone that the user is affiliated.

That is, the RTBS that returns by the user and this user's of ratio calculation of channel peak transfer rate code check, and set the code check threshold value and carry out dividing region.

Need be pointed out that further that after step S201 finished, technical scheme proposed by the invention can also comprise following treatment step:

The user of priority of resource allocation formation and the user in the resource allocation formation or user's group are sorted according to the channel condition parameter.

Wherein, concrete principle of ordering is:

The recommendation transmission block size RTBS that returns according to each user, the user of priority of resource allocation formation and the user in the resource allocation formation or user's group are sorted from big to small.

Concrete; this ordered steps is both the processing operation of being carried out with step S202 after step S201 finishes; there is not inevitable precedence relationship between two steps; and; above-mentioned ordered steps also only is a kind of expansion scheme of technical scheme proposed by the invention, therefore, and the variation of concrete order between step S202 and the above-mentioned ordered steps; and in technical scheme proposed by the invention, whether carry out above-mentioned ordered steps, can't exert an influence to protection scope of the present invention.

Step S203, judge whether the isolation of user in the priority of resource allocation formation and the user in the resource allocation formation or user's group meets default isolation threshold value.

Concrete, if comprised above-mentioned ordered steps in the technical scheme proposed by the invention, then the specific implementation process of step S203 is as follows:

According to above-mentioned ordering, judge whether the isolation of user in the priority of resource allocation formation and the user in the resource allocation formation or user group meets default isolation threshold value.

Step S204, according to the result who judges, the user in the user in the priority of resource allocation formation and the resource allocation formation or user organized carry out space division multiple access resource scheduling, specifically comprise following two kinds of situations:

The isolation of situation one, the user in judging the priority of resource allocation formation and the user in the resource allocation formation or user's group meets when presetting the isolation threshold value, user in user in the priority of resource allocation formation and the resource allocation formation is formed new user's group, or the user in the priority of resource allocation formation added user group in the resource allocation formation, forms new user and organize.

Further, after above-mentioned finishing dealing with, the method that the embodiment of the invention proposed also further comprises following handling process:

Judge whether the number of users in new user's group organizes amount threshold above default user.

Because the user is carried out causing the pairing power resource of this user low excessively after sky divides the scheduling of resource of matching, generally need to limit the maximum number of user that the pairing user organizes for preventing.In real system, the maximum number of user of pairing user group generally gets 2 or 3.

Wherein, according to concrete judged result, follow-up processing comprises:

When the result who judges organizes amount threshold for the number of users in new user's group surpasses default user, the new user in the resource allocation formation is organized deletion, the user in the priority of resource allocation formation is deleted;

When the result who judges organizes amount threshold for the number of users in new user's group does not have to surpass default user, the user in the priority of resource allocation formation is deleted.

The isolation of situation two, the user in judging the priority of resource allocation formation and the user in the resource allocation formation or user's group does not meet when presetting the isolation threshold value, and the user in the priority of resource allocation formation is deleted.

Need further be pointed out that, do not meet user or user's group of default resource user screening rule to be allocated among the above-mentioned step S202 in deletion priority of resource allocation formation and the resource allocation formation, or, in two kinds of situations among the above-mentioned steps S204 user in priority of resource allocation formation and the resource allocation formation or user are organized after the deletion, further comprising the steps of:

Judge whether priority of resource allocation formation or resource allocation formation are empty.

If the priority of resource allocation formation is empty, then expression does not have satisfactory user need further carry out space division multiple access resource scheduling; If the resource allocation formation is empty, the sky branch resource that is not far more than in the then expression system can be assigned with, and such expression either way can't be carried out further space division multiple access resource scheduling, and match promptly empty the branch.Therefore, when priority of resource allocation formation or resource allocation formation when being empty, stop space division multiple access resource scheduling.

By using the present invention, can when carrying out space division multiple access resource scheduling, not only consider the isolation between the user, and can further consider user's regional characteristics, thereby, make the system that carries out behind the space division multiple access resource scheduling have better overall throughput and systematic function.

Based on above-mentioned technical scheme, the present invention has also further proposed to realize the device of said method, as shown in Figure 5, is a kind of structural representation of communication equipment, and this communication equipment specifically comprises:

Processing module 51, the resource user to be allocated that is used for the priority of resource allocation formation is had limit priority is transferred in the resource allocation formation, is resource user Resources allocation to be allocated.

Need further be pointed out that, before realizing that the user shifts, as described in last embodiment, in system, need to set up in advance two formations, one is the priority of resource allocation formation, under the situation of not considering SDMA, generate the user list of resource to be allocated according to the dispatching priority of each user in the system, form the priority of resource allocation formation; Another is the resource allocation formation, and for the user in this formation, system carries out corresponding system resources and distributes.The process of setting up of this formation can be finished in the lump by processing module 51, and such variation belongs to protection scope of the present invention equally.

Screening module 52 is used for deleting priority of resource allocation formation and the resource allocation formation user or the user group that do not meet default to be allocated resource user screening rule of processing module 51 after handling.

Wherein, Yu She resource user screening rule to be allocated can be specially:

And the realization of above-mentioned rule then is the prerequisite that is divided into user's affiliated area, in this communication equipment, is included as the functional module of discerning user's affiliated area and existing equally, specifically comprises:

Receiver module 56 is used to receive the sub-district, user place that the user periodically reports and the PCCPCH RSCP of adjacent cell, and/or the user RTBS and the channel peak transfer rate that return;

Identification module 57 is used for the information that received according to receiver module 56, the zone under the identification user, thus provide the screening foundation for screening module 52.

Certainly; the prerequisite of the existence of receiver module 56 and identification module 57 is that user's screening rule of being followed in the above-mentioned screening module 52 is formulated according to area dividing; so; if user's screening rule is not to formulate according to area dividing; then these functional modules will no longer be contained in this communication equipment; such variation does not influence protection scope of the present invention.

Need further be pointed out that, RTBS that the user that above-mentioned receiver module 56 is received returns and channel peak transfer rate can provide ordering needed channel condition parameter for order module 55 equally, therefore, receiver module 56 does not have inevitable simultaneous requirement with screening module 52 and identification module 57, under the situation that only has order module 55, can have receiver module 56 yet, but, owing to deal with relationship,, then certainly exist receiver module 56 if there is identification module 57.

Isolation judge module 53 is used for judging whether the user of the resource allocation formation of screening through screening module 52 and the isolation of the user in the resource allocation formation or user's group meet default isolation threshold value.

Scheduler module 54 is used for the judged result according to isolation judge module 53, and the user in user in the priority of resource allocation formation and the resource allocation formation or user's group are carried out space division multiple access resource scheduling.

Further, in concrete enforcement scene, this communication equipment also comprises:

Order module 55 is used for that processing module 51 is handled the user of priority of resource allocation formation afterwards and user or user's group of resource allocation formation sorts according to the channel condition parameter.

It is pointed out that if there is order module 55 in this communication equipment it is that the user who is arranged according to order module 55 calculates in proper order that the isolation of then above-mentioned isolation judge module 53 calculates; If there is not order module 55 in this communication equipment, it is to calculate according to the The selection result of screening module 52 that the isolation of then above-mentioned isolation judge module 53 calculates, and such variation all belongs to protection scope of the present invention.

Further again, in concrete enforcement scene, this communication equipment also comprises one or more with in the lower module:

Number of users judge module 58, whether the number of users that is used for judging new user's group that scheduler module 54 is generated surpasses default user is organized amount threshold.

Formation judge module 59 is used to judge whether priority of resource allocation formation or resource allocation formation are empty, and the foundation of whether carrying out space division multiple access resource scheduling is provided for scheduler module 54.

It is to be noted, above-mentioned number of users judge module 58 or formation judge module 59 all are optional function modules of this communication equipment, wherein, the effect of number of users judge module 58 is according to judged result, and the user's group that default user organizes amount threshold that exceeds in the resource allocation formation is deleted; And the effect of formation judge module 59 be when priority of resource allocation formation or resource allocation formation when empty, finish the space division multiple access resource scheduling operation.

Certainly; deletion user group and the operation of end space division multiple access resource scheduling can realize according to other rule; under such situation; above-mentioned number of users judge module 58 or formation judge module 59 will no longer be contained in this communication equipment, and such variation can't influence protection scope of the present invention.

The method and apparatus that previous embodiment proposed, all be in the screening of preferentially carrying out user's affiliated area, and on the other hand, the invention allows for the dispatching method of realizing the space division multiple access resources of space division multiple access resource scheduling on a kind of basis of preferentially carrying out channel quality ordering, be the empty user's of branch of a kind of SDMA matching method, this method is equally applicable to use the HSPA system of SDMA.

The precondition that this method had is consistent with previous embodiment, is the mode of a kind of passive use SDMA equally, does not repeat them here.

Under such prerequisite, as shown in Figure 6, the schematic flow sheet of the dispatching method of a kind of space division multiple access resources that proposes for the embodiment of the invention, this method specifically may further comprise the steps:

Step S601, the resource user to be allocated that has limit priority in the priority of resource allocation formation is transferred in the resource allocation formation, is resource user Resources allocation to be allocated.

Wherein, embodiment is described as described above to set up the foundation of priority of resource allocation formation and resource allocation formation and method in system, no longer repeat specification.

Compared with prior art, the difference of technical scheme proposed by the invention is, prior art is when carrying out the scheduling of empty branch resource, only consider the insulated degree requirement between the user, technical scheme proposed by the invention then can further be considered situations such as user zone of living in and channel status, in the present embodiment, preferentially carry out space division multiple access resource scheduling according to user's channel quality condition.

Step S602, the user of priority of resource allocation formation and the user in the resource allocation formation or user's group are sorted according to the channel condition parameter.

Wherein, concrete sort by and method are:

Do not meet user or user's group of default resource user screening rule to be allocated in deletion priority of resource allocation formation and the resource allocation formation.

Wherein, embodiment is described as described above for concrete screening rule and area dividing mode, in this no longer repeat specification.

Concrete; the ordered steps of this screening step and step S602 is both the processing operation of being carried out after step S601 finishes; there is not inevitable precedence relationship between two steps; and; above-mentioned screening step also only is a kind of expansion scheme of technical scheme proposed by the invention; therefore; the variation of concrete order between step S602 and the above-mentioned screening step; and in technical scheme proposed by the invention, whether carry out above-mentioned screening step, can't exert an influence to protection scope of the present invention.

Step S603, according to above-mentioned ordering, judge whether the isolation of user in the priority of resource allocation formation and the user in the resource allocation formation or user group meets default isolation threshold value.

Step S604, according to the result who judges, the user in the user in the priority of resource allocation formation and the resource allocation formation or user organized carry out space division multiple access resource scheduling, specifically comprise following two kinds of situations:

Wherein, according to concrete judged result, follow-up processing comprises:

Need further be pointed out that, in two kinds of situations among the above-mentioned step S206 user in priority of resource allocation formation and the resource allocation formation or user be organized after the deletion, further comprising the steps of:

By using the present invention, can when carrying out space division multiple access resource scheduling, not only consider the isolation between the user, and can further consider user's channel quality, thereby, make the system that carries out behind the space division multiple access resource scheduling have better overall throughput and systematic function.

Based on above-mentioned technical scheme, the present invention has also further proposed to realize the device of said method, as shown in Figure 7, is a kind of structural representation of communication equipment, and this communication equipment specifically comprises:

Processing module 71, the resource user to be allocated that is used for the priority of resource allocation formation is had limit priority is transferred in the resource allocation formation, is resource user Resources allocation to be allocated.

Need further be pointed out that, before realizing that the user shifts, as described in last embodiment, in system, need to set up in advance two formations, one is the priority of resource allocation formation, under the situation of not considering SDMA, generate the user list of resource to be allocated according to the dispatching priority of each user in the system, form the priority of resource allocation formation; Another is the resource allocation formation, and for the user in this formation, system carries out corresponding system resources and distributes.The process of setting up of this formation can be finished in the lump by processing module 71, and such variation belongs to protection scope of the present invention equally.

Order module 72 is used for that processing module 71 is handled the user of priority of resource allocation formation afterwards and user or user's group of resource allocation formation sorts according to the channel condition parameter.

Isolation judge module 73 is used for the order of being arranged according to order module 72, judges whether the user in the priority of resource allocation formation and the isolation of the user in the resource allocation formation or user's group meet default isolation threshold value.

Scheduler module 74 is used for the judged result according to isolation judge module 73, and the user in user in the priority of resource allocation formation and the resource allocation formation or user's group are carried out space division multiple access resource scheduling.

Screening module 75 is used for deleting priority of resource allocation formation and the resource allocation formation user or the user group that do not meet default to be allocated resource user screening rule of processing module 71 after handling.

Wherein, Yu She resource user screening rule to be allocated can be specially:

Receiver module 76 is used to receive the sub-district, user place that the user periodically reports and the PCCPCH RSCP of adjacent cell, and/or the user RTBS and the channel peak transfer rate that return.

Identification module 77 is used for the information that received according to receiver module 76, the zone under the identification user.

Need further be pointed out that, RTBS that the user that above-mentioned receiver module 76 is received returns and channel peak transfer rate can provide ordering needed channel condition parameter for order module 72 equally, therefore, receiver module 76 does not have inevitable simultaneous requirement with screening module 75 and identification module 77, under the situation that only has order module 72, can have receiver module 76 yet, but, owing to deal with relationship,, then certainly exist receiver module 76 if there is identification module 77.

Certainly; the simultaneous prerequisite of receiver module 76 and identification module 77 is that user's screening rule of being followed in the above-mentioned screening module 72 is formulated according to area dividing; so; if user's screening rule is not to formulate according to area dividing; then these functional modules will no longer be contained in this communication equipment; such variation does not influence protection scope of the present invention.

In addition, it is pointed out that it is that the user who is arranged according to order module 72 calculates in proper order that the isolation of then above-mentioned isolation judge module 73 calculates if there is not screening module 75 in this communication equipment; If there is order module 75 in this communication equipment, it is to calculate according to the The selection result of screening module 75 that the isolation of then above-mentioned isolation judge module 73 calculates, and such variation all belongs to protection scope of the present invention.

Number of users judge module 78, whether the number of users that is used for judging new user's group that scheduler module 74 is generated surpasses default user is organized amount threshold;

Formation judge module 79 is used to judge whether priority of resource allocation formation or resource allocation formation are empty, and the foundation of whether carrying out space division multiple access resource scheduling is provided for scheduler module 74.

It is to be noted, above-mentioned number of users judge module 78 or formation judge module 79 all are optional function modules of this communication equipment, wherein, the effect of number of users judge module 78 is according to judged result, and the user's group that default user organizes amount threshold that exceeds in the resource allocation formation is deleted; And the effect of formation judge module 79 be when priority of resource allocation formation or resource allocation formation when empty, finish the space division multiple access resource scheduling operation.

Certainly; deletion user group and the operation of end space division multiple access resource scheduling can realize according to other rule; under such situation; above-mentioned number of users judge module 78 or formation judge module 79 will no longer be contained in this communication equipment, and such variation can't influence protection scope of the present invention.

For further detailed explanation technical scheme proposed by the invention, in conjunction with concrete enforcement scene, under the situation of taking all factors into consideration user area distribution and channel quality, as shown in Figure 8, the dispatching method of the SDMA resource that the present invention proposes specifically may further comprise the steps:

Step S801, the user of resource to be allocated in the system generated treat the dispatching priority formation.

Wherein, treat the dispatching priority formation, it is aforesaid priority of resource allocation formation, be according to existing MAX-C/I, RR, methods such as PF are determined the dispatching priority of user in the system, the dispatched users for the treatment of of generation is tabulated, in the process of the given definite user's of this step dispatching priority, temporarily do not consider the SDMA factor.

For the convenience of follow-up explanation, in embodiments of the present invention, will treat the dispatching priority formation, promptly aforesaid priority of resource allocation formation abbreviates formation 1 as.

Step S802, the user who has limit priority in the formation 1 is taken out, put into the pre-scheduling formation, carry out resource allocation.

Wherein, the pre-scheduling formation is the resource allocation formation, for the convenience of follow-up explanation, in embodiments of the present invention, abbreviates above-mentioned pre-scheduling formation as formation 2.

Wherein, the user that priority is the highest takes out from formation 1 and carries out resource allocation, comprises on the one hand this user is put into formation 2, and be this user's distributing corresponding system resources, on the other hand, also comprises this user is deleted from formation 1.By two such steps, finished user's transfer of 2 from formation 1 to formation.

Step S803, judge in the system whether to also have surplus resources.

The basis for estimation of this step is under the prerequisite of not considering SDMA, judges whether system also exists surplus resources.

If also have surplus resources in the system, change step S802 over to, proceed resource allocation;

If there is not surplus resources in the system, change step S804 over to.

Step S804, according to user's screening rule, do not meet the user that the zone requires in deletion formation 1 and the formation 2.

Distribute according to aforesaid precondition and user area shown in Figure 2, the implementation of this step specifically comprises following three kinds of situations:

Situation 1, system pay the utmost attention to the throughput of edge customer, therefore, be positioned at the user in zone 1 in deletion formation 1 and the formation 2, make the user in the zone 1 no longer participate in follow-up scheduling of resource, be that edge customer does not participate in empty the branch, thereby ensured the speed of edge customer.

Situation 2, system pay the utmost attention to the throughput of entire system, omit this step, leap to step S805, thereby, allow edge customer to participate in empty the branch.

Situation 3, system pay the utmost attention to the throughput of entire system, only delete the user who is in zone 1 in the formation 1, and keep all users in the formation 2.

Step S805, the user in formation 1 and the formation 2 is resequenced according to channel situation.

RTBS by user feedback reorders from big to small to formation 1 and formation 2, promptly pays the utmost attention to be positioned at or the user of access areas 3 carries out sky and divides pairing.Because the user may divide and non-NULL divides between the state and switches at sky, therefore recommend to use by the RTBS after the compensation someway, also can directly use the RTBS of the last feedback of user

Step S806, judge whether formation 1 and formation 2 is empty.

If formation 1 or formation 2 are empty, the flow process of this method finishes;

If formation 1 and formation 2 all are not empty, then change step S807 over to.

Step S807, with the user in the formation 1 successively with formation 2 in user or user group carry out isolation and calculate.

Need to prove, because method that the embodiment of the invention proposed relates to circulation step, so, independent user can appear in the formation 2 and by a plurality of independent users that the user formed groups that meet insulated degree requirement.Wherein, user's group specifically is to generate by subsequent step, and after generation, owing to satisfy cycling condition, and return the execution abovementioned steps by circulation step.Therefore, when carrying out this step, need consider simultaneously that user, user's group and user and user organize the situation about existing of mixing.

At this moment, establish in the formation 1 element for Ai|i=1,2 ... m}, in the formation 2 element be Bj|j=1,2 ..., n} takes out the user Ai of formation head and the user in the formation 2 or user and organizes Bj computer memory isolation successively from formation 1

Step S808, judge in the formation 1 the user whether with formation 2 at least one user or user's group satisfy insulated degree requirement.

That is, judge whether the isolation between user in the formation 1 and at least one user in the formation 2 or the user group is within the default optimal isolation degree interval.

If the user Bk in user Ai in the formation 1 and the formation 2 is in optimal isolation degree interval, or organize with user in the formation 2 that all change step S809 over to being in optimal isolation degree interval per family among the Bj;

Otherwise, if the user Bk in user Ai in the formation 1 and the formation 2 is not in optimal isolation degree interval, or be not in optimal isolation degree interval per family with one or more usefulness that user in the formation 2 organizes among the Bj, change step S812 over to.

Step S809, satisfactory user is carried out sky divide pairing, promptly carry out space division multiple access resource scheduling.

Concrete, comprise following two kinds of situations:

When the user Ai in the formation 1 and the user Bk in the formation 2 are in the optimal isolation degree when interval, user Ai and user Bk are formed new user's group, finish the empty pairing that divides;

When the user Ai in the formation 1 and the user in the formation 2 organize among the Bj all with being in the optimal isolation degree per family when interval, with Ai with add access customer group Bj, finish the empty pairing that divides.

Step S810, judge that each user in the formation 2 organizes number of users among the Bj and whether reaches the user and match the upper limit.

If the user organizes number of users among the Bj and reaches the user and match upper limit N, then change step S811 over to;

If the user organizes number of users among the Bj and do not reach the user and match upper limit N, then change step S812 over to

Step S811, from formation 2 deletion user organize Bj.

Step S812, from formation 1 deletion user Ai.

After executing the cost step, change step S806 over to.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above sequence number is not represented the quality of embodiment just to description.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims

1. the dispatching method of a space division multiple access SDMA resource is characterized in that, comprising:

2. the method for claim 1 is characterized in that, described the resource user to be allocated that has limit priority in the priority of resource allocation formation is transferred in the resource allocation formation, after described resource user Resources allocation to be allocated, also comprises:

3. method as claimed in claim 2 is characterized in that, described user and the user in the described resource allocation formation or user's group with described priority of resource allocation formation sorts according to the channel condition parameter, is specially:

4. method as claimed in claim 1 or 2 is characterized in that, whether the described isolation of judging that user in user in the resource allocation formation and the described resource allocation formation or user organize meets default isolation threshold value, is specially

5. the method for claim 1 is characterized in that, described default resource user screening rule to be allocated is specially:

6. method as claimed in claim 5 is characterized in that, described appointed area is specifically determined according to following standard:

The size of the user's of described appointed area throughput; Or,

The user's of described appointed area channel quality quality.

7. as claim 5 or 6 described methods, it is characterized in that, determine also to comprise the affiliated area of determining described user before the described appointed area, be specially:

8. method as claimed in claim 7 is characterized in that, also comprises:

9. as claim 5 or 6 described methods, it is characterized in that, determine also to comprise the affiliated area of determining described user before the described appointed area, be specially:

10. the method for claim 1 is characterized in that, and is described according to the result who judges, the user in user in the described priority of resource allocation formation and the described resource allocation formation or user's group are carried out sky branch scheduling of resource, specifically comprises:

11. method as claimed in claim 10, it is characterized in that, described user in user in the described priority of resource allocation formation and the described resource allocation formation is formed new user group, or the user that the user in the described priority of resource allocation formation is added in the described resource allocation formation organizes, form after new user's group, also comprise:

12. as claim 1 or 11 described methods, it is characterized in that, delete after the user or user's group who does not meet default resource user screening rule to be allocated in described priority of resource allocation formation and the described resource allocation formation, or, after the deletion of the user in the described resource allocation formation, also comprise:

13. a communication equipment is characterized in that, comprising:

14. communication equipment as claimed in claim 13 is characterized in that, also comprises:

15. as claim 13 or 14 described communication equipments, it is characterized in that, also comprise:

16. communication equipment as claimed in claim 13 is characterized in that, also comprises:

17. the dispatching method of a space division multiple access SDMA resource is characterized in that, comprising:

According to the result of described judgement, the user in user in the described priority of resource allocation formation and the described resource allocation formation or user's group are carried out sky branch scheduling of resource.

18. method as claimed in claim 17 is characterized in that, described the resource user to be allocated that has limit priority in the priority of resource allocation formation is transferred in the resource allocation formation, after described resource user Resources allocation to be allocated, also comprises:

19. method as claimed in claim 17 is characterized in that, described user and the user in the described resource allocation formation or user's group with described priority of resource allocation formation sorts according to the channel condition parameter, is specially:

The RTBS information of returning according to each user, the user of described priority of resource allocation formation and the user in the described resource allocation formation or user's group are sorted from big to small.

20. method as claimed in claim 17 is characterized in that, and is described according to the result who judges, the user in user in the described priority of resource allocation formation and the described resource allocation formation or user's group are carried out sky branch scheduling of resource, specifically comprises:

21. method as claimed in claim 17, it is characterized in that, described user in user in the described priority of resource allocation formation and the described resource allocation formation is formed new user group, or the user that the user in the described priority of resource allocation formation is added in the described resource allocation formation organizes, form after new user's group, also comprise:

22. as claim 17 or 21 described methods, it is characterized in that, delete after the user or user's group who does not meet default resource user screening rule to be allocated in described priority of resource allocation formation and the described resource allocation formation, or, after the deletion of the user in the described priority of resource allocation formation, also comprise:

23. a communication equipment is characterized in that, comprising:

24. communication equipment as claimed in claim 23 is characterized in that, also comprises:

25. as claim 23 or 24 described communication equipments, it is characterized in that, also comprise:

Receiver module is used to receive the sub-district, described user place that described user periodically reports and the PCCPCH RSCP of adjacent cell, and/or described the user RTBS and the channel peak transfer rate that return;

26. communication equipment as claimed in claim 23 is characterized in that, also comprises: