CN101801091A

CN101801091A - Method and device for allocating resources in OFDM/MIMO system

Info

Publication number: CN101801091A
Application number: CN201010102666A
Authority: CN
Inventors: 彭木根; 李莉; 杨常青; 王文博
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Comba Network Systems Co Ltd
Priority date: 2010-01-28
Filing date: 2010-01-28
Publication date: 2010-08-11
Anticipated expiration: 2030-01-28
Also published as: CN101801091B

Abstract

The invention discloses a method and a device for scheduling resources in an OFDM/MIMO system. In the method and the device, cell users are divided into cell edge users or cell center users and the resources are allocated to the cell edge users and the cell center users. The method comprises the following steps of: dividing time-frequency resources into a first resource group and a second resource group and dividing the first resource group and the second resource group into a plurality of resource blocks; configuring master resources and auxiliary resources in the first resource group for the cells and configuring the master resources and the auxiliary resources in the second resource group for the cells according to the plurality of resource blocks; and allocating the master resources in the first resource group and the second resource group to the cell edge users and allocating the auxiliary resources in the first resource group and the second resource group to the cell center users. Through the method and the device, interference among the cells is avoided, simultaneously the service requirements of the users on delay requirement, bandwidth and the like are met and the communication quality of the cell edge users is improved.

Description

The method and apparatus of resource allocation in a kind of OFDM/MIMO system

Technical field

The present invention relates to communication technical field, the method and apparatus of resource allocation in the particularly a kind of OFDM/MIMO system.

Background technology

OFDM (Orthogonal Frequency Division Multiplex, OFDM) technology has advantages such as the spectrum efficiency of raising, the decline of contrary frequency selectivity or narrow band interference, becomes one of transmission technology of next generation wireless communication system.

MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) technology based on many antennas not only can improve power system capacity, can also be used to improve simultaneously the reliability of channel, reduces BLER (Block Error Rate, bLock error rate).By sustainable development and research in recent years, the MIMO technology that reaches its maturity has become one of key technology of wireless communication field, and will be applied to B3G/4G (Beyond 3 Generation/4Generation, super 3 g mobile communication system/four third-generation mobile communication systems) and other wireless communication system.

Under the situation of OFDM/MIMO communication system identical networking, the nonorthogonality of neighbor cell running time-frequency resource will cause presence of intercell interference inevitably, and the user's communications quality that presence of intercell interference may cause being in cell edge region is seriously influenced.

In the prior art, running time-frequency resource is limited and divides the interference of evading the minizone by soft-frequency reuse and/or soft time-multiplexed technology.

The soft-frequency reuse technology be with system can with frequency range be divided into some part, different neighbor cells to select different sub-carrier set cooperations be the primary band of this sub-district, the auxilliary frequency range of remaining this sub-district of conduct.The boss's carrier wave on the primary band is used in the cell edge terminal communication, and the auxilliary subcarrier on the auxilliary frequency range is used in the center of housing estate terminal communication.Adjust the power on boss's carrier wave and the auxiliary son carrier waves simultaneously, make that the transmitting power on boss's carrier wave is bigger, the transmitting power of auxiliary son carrier waves is less.The cardinal principle and the soft-frequency reuse of soft time-multiplexed technology are similar, difference be soft time-multiplexed be to use the method for mutually disjoint time period to reduce interference by the neighbor cell edge termination.

From the above analysis, one of soft frequency/time-multiplexed most crucial steps is to limit the scope of resource of neighbor cell fringe region use by the method for divide resource.Soft frequency/time-multiplexed resource division operation has the advantage that realizes simply and can effectively evade presence of intercell interference.

But also there is following problem in soft frequency/time-multiplexed resource division:

On the one hand, because soft frequency/time-multiplexed the employing respectively on single frequency domain and single time-domain carry out resource division, make the available bandwidth of fringe region or up duration section be subjected to restriction to a great extent, cause the flexibility of resource allocation to reduce greatly; On the other hand, if exist part in the system, then might cause QoS (Quality ofService, service quality) to be met to bandwidth or the relatively harsher user of delay requirement.

In addition, in wireless communication system, the communication quality of Cell Edge User not only is subjected to the influence of presence of intercell interference, also can exist because translational speed is too fast, building blocks, the long-time Block Error Rate, the packet loss that cause with communication environment factors such as the distance of base station are excessive are too high, or problem such as number of retransmissions is too much.And if the problems referred to above of Cell Edge User only utilize the optimization of running time-frequency resource and restriction possibly can't solve, the communication quality of Cell Edge User has much room for improvement.

Summary of the invention

In view of this, the invention provides the method and apparatus of resource allocation in a kind of OFDM/MIMO system, when evading presence of intercell interference, satisfied the service needed of user, improved the communication quality of Cell Edge User at aspects such as delay requirement and bandwidth.

In order to achieve the above object, the invention provides the method for resource allocation in a kind of OFDM/MIMO system, community user is divided into Cell Edge User or Cell Center User, is described Cell Edge User and described Cell Center User Resources allocation, said method comprising the steps of:

Running time-frequency resource is divided into the first resource group and the second resource group, and described first resource group and the described second resource group are divided into a plurality of Resource Block;

According to described a plurality of Resource Block is primary resource and the auxilliary resource of cell configuration in the described first resource group, is primary resource and the auxilliary resource of cell configuration in the described second resource group;

Described primary resource in described first resource group and the described second resource group is distributed to described Cell Edge User, give described Cell Center User the described auxilliary resource allocation in described first resource group and the described second resource group.

Preferably,

Described running time-frequency resource is divided into the first resource group and the second resource group, and described first resource group and the described second resource group be divided into a plurality of Resource Block, specifically comprise: dividing running time-frequency resource is described first resource group and the described second resource group, described first resource group and the described second resource group overlap on time domain, take different frequency domain resource on frequency domain; Divide the described first resource group respectively and the described second resource group is a n Resource Block, n is the number of described sub-district, and continuously, n resource is continuous on time domain in the described second resource group on frequency domain for n Resource Block in the described first resource group;

Described is primary resource and the auxilliary resource of cell configuration in the described first resource group, be primary resource and the auxilliary resource of cell configuration in the described second resource group, specifically comprise: for a Resource Block in the described cell allocation first resource group as the primary resource of described sub-district in the described first resource group, the primary resource of distributing in each sub-district first resource group does not overlap mutually, and the individual Resource Block of residue (n-1) in the described first resource group is as the auxilliary resource of described sub-district; For a Resource Block in the described cell allocation second resource group as the primary resource of described sub-district in the described second resource group, the primary resource of distributing in each sub-district second resource group does not overlap mutually, and the individual Resource Block of residue (n-1) in the described second resource group is as the auxilliary resource of described sub-district.

Preferably, the reference signal receiving intensity RSRP that measurement reports according to community user is divided into described Cell Edge User and described Cell Center User with described community user; Obtain the translational speed of described community user and the type of service of support, the frequency bandwidth that takies according to described community user type of service requires described Cell Edge User is divided into arrowband Cell Edge User and broadband cell edge customer, and described Cell Center User is divided into arrowband Cell Center User and broadband cell user;

Described described primary resource in the described first resource group and the described second resource group is distributed to described Cell Edge User, specifically comprises:

When described Cell Edge User is the arrowband Cell Edge User, according to QoS of customer QoS priority described arrowband Cell Edge User is sorted, with the height of described QoS priority be followed successively by in proper order described arrowband Cell Edge User distribute in the described second resource group primary resource piece along time shaft by near to resource far away, and travel through described arrowband Cell Edge User; If when having the arrowband Cell Edge User of unallocated resource, the arrowband Cell Edge User of described unallocated resource is blocked processing;

When described Cell Edge User is the broadband cell edge customer, according to user moving speed described broadband cell edge customer is sorted, height with described user moving speed is followed successively by the resource that described broadband cell edge customer distributes primary resource piece in the described first resource group in proper order, and travels through described broadband cell edge customer; If when having the broadband cell edge customer of unallocated resource, the broadband cell edge customer of described unallocated resource is blocked processing.

Preferably, give described Cell Center User, specifically comprise the described auxilliary resource allocation in described first resource group and the described second resource group:

When described Cell Center User is the arrowband Cell Center User:

According to described QoS priority described arrowband Cell Center User is sorted, with the height of described QoS priority be followed successively by in proper order described arrowband Cell Center User distribute in the described second resource group auxilliary Resource Block along time shaft by near to resource far away; Travel through described arrowband Cell Center User,, judge whether primary resource in the described second resource group that residue is not assigned with if when having the described arrowband Cell Center User of unallocated resource,

When judged result for not the time, the arrowband Cell Center User of described unallocated resource is blocked processing; When judged result when being, for the arrowband Cell Center User of described unallocated resource distribute in the described second resource group that described residue is not assigned with the primary resource piece along time shaft by near to resource far away, travel through the arrowband Cell Center User of described unallocated resource, primary resource assigns in the described second resource group that described residue is not assigned with, and when having the arrowband Cell Center User of described unallocated resource, the arrowband Cell Center User of described unallocated resource is blocked processing;

When described Cell Center User is the broadband cell central user:

According to user moving speed described broadband cell central user is sorted, be followed successively by the resource that described arrowband Cell Center User distributes auxilliary Resource Block in the described first resource group in proper order with the height of user moving speed; Travel through described broadband cell central user,, judge whether primary resource in the described first resource group that residue is not assigned with if when having the described broadband cell central user of unallocated resource,

When judged result for not the time, the broadband cell central user of described unallocated resource is blocked processing; When judged result when being, for the broadband cell central user of described unallocated resource is distributed primary resource in the described first resource group that described residue is not assigned with, travel through the broadband cell central user of described unallocated resource, and primary resource assigns in the described first resource group that described residue is not assigned with, and when having the broadband cell central user of described unallocated resource, the broadband cell central user of described unallocated resource is blocked processing.

Preferably, be described Cell Edge User and described Cell Center User Resources allocation, also comprise afterwards:

Set in advance the priority list of the defeated rule of multi-antenna transmitting, and the corresponding target door limit value that triggers the defeated rule of described multi-antenna transmitting; Add up described Cell Edge User in the communication quality average behavior of scheduling of resource in the cycle; When described user's communications quality average behavior reached preset threshold value less than the number of times of described corresponding target door limit value, described Cell Edge User was selected the defeated rule of the described multi-antenna transmitting of described target door limit value correspondence.

The present invention also provides the device of resource allocation in a kind of OFDM/MIMO system, and community user is divided into Cell Edge User or Cell Center User, is described Cell Edge User and described Cell Center User Resources allocation, and described device comprises:

Divide module, be used for running time-frequency resource is divided into the first resource group and the second resource group, and described first resource group and the described second resource group are divided into a plurality of Resource Block;

Configuration module is used for described a plurality of Resource Block that described division Module Division obtains, and is primary resource and the auxilliary resource of cell configuration in the described first resource group, is primary resource and the auxilliary resource of cell configuration in the described second resource group;

Resource distribution module is used for the described primary resource in described first resource group and the described second resource group is distributed to described Cell Edge User, gives described Cell Center User with the described auxilliary resource allocation in described first resource group and the described second resource group.

Preferably,

Described division module specifically is used for, and dividing running time-frequency resource is described first resource group and the described second resource group, and wherein, described first resource group and the described second resource group overlap on time domain, take different frequency domain resource on frequency domain; Divide the described first resource group respectively and the described second resource group is a n Resource Block, n is the number of described sub-district, and continuously, n resource is continuous on time domain in the described second resource group on frequency domain for n Resource Block in the described first resource group;

Described configuration module specifically is used for, for a Resource Block in the described cell allocation first resource group as the primary resource of described sub-district in the described first resource group, the primary resource of distributing in each sub-district first resource group does not overlap mutually, and the individual Resource Block of residue (n-1) in the described first resource group is as the auxilliary resource of described sub-district; For a Resource Block in the described cell allocation second resource group as the primary resource of described sub-district in the described second resource group, the primary resource of distributing in each sub-district second resource group does not overlap mutually, and the individual Resource Block of residue (n-1) in the described second resource group is as the auxilliary resource of described sub-district.

Preferably, described division module also is used for, and the reference signal receiving intensity RSRP that measurement reports according to community user is divided into described Cell Edge User and described Cell Center User with described community user; Obtain the translational speed of described community user and the type of service of support, the frequency bandwidth that takies according to described community user type of service requires described Cell Edge User is divided into arrowband Cell Edge User and broadband cell edge customer, and described Cell Center User is divided into arrowband Cell Center User and broadband cell user;

Described resource distribution module specifically comprises distribution sub module, judges submodule and processing sub;

When described Cell Edge User is the arrowband Cell Edge User, according to QoS of customer QoS priority described arrowband Cell Edge User is sorted, described distribution sub module according to the height of described QoS priority be followed successively by in proper order described arrowband Cell Edge User distribute in the described second resource group primary resource piece along time shaft by near to resource far away; After traveling through described arrowband Cell Edge User, described judgement submodule judges whether to exist the arrowband Cell Edge User of unallocated resource, when judged result when being, described processing sub is blocked processing to the arrowband Cell Edge User of described unallocated resource;

When described Cell Edge User is the broadband cell edge customer, according to user moving speed described broadband cell edge customer is sorted, described distribution sub module is followed successively by the resource that described broadband cell edge customer distributes primary resource piece in the described first resource group in proper order according to the height of described user moving speed; After traveling through described broadband cell edge customer, described judgement submodule judges whether to exist the broadband cell edge customer of unallocated resource, when judged result when being, described processing sub is blocked processing to the broadband cell edge customer of described unallocated resource.

Preferably, described resource distribution module specifically comprises distribution sub module, judges submodule and processing sub;

When described Cell Center User is the arrowband Cell Center User:

According to described QoS priority described arrowband Cell Center User is sorted, described distribution sub module according to the height of described QoS priority be followed successively by in proper order described arrowband Cell Center User distribute in the described second resource group auxilliary Resource Block along time shaft by near to resource far away; Travel through described arrowband Cell Center User, if when having the described arrowband Cell Center User of unallocated resource, described judgement submodule judges whether to exist the primary resource of the described second resource group that residue is not assigned with,

When judged result for not the time, described processing sub is blocked processing to the arrowband Cell Center User of described unallocated resource; When judged result when being, described distribution sub module be the arrowband Cell Center User of described unallocated resource distribute the second resource group that described residue is not assigned with the primary resource piece along time shaft by near to resource far away; Travel through the arrowband Cell Center User of described unallocated resource, primary resource assigns in the second resource group that described residue is not assigned with, and when having the arrowband Cell Center User of described unallocated resource, described processing sub is blocked processing to the arrowband Cell Center User of described unallocated resource;

When described Cell Center User is the broadband cell central user:

According to user moving speed described broadband cell central user is sorted, described distribution sub module is followed successively by the resource that described arrowband Cell Center User distributes auxilliary Resource Block in the described first resource group in proper order according to the height of user moving speed; Travel through described broadband cell central user, if when having the described broadband cell central user of unallocated resource, described judgement submodule judges whether to have primary resource in the described first resource group that residue is not assigned with,

When judged result for not the time, described processing sub is blocked processing to the broadband cell central user of described unallocated resource; When judged result when being, described distribution sub module is the primary resource that the broadband cell central user of described unallocated resource is distributed the described first resource group that described residue is not assigned with; Travel through the broadband cell central user of described unallocated resource, primary resource assigns in the first resource group that described residue is not assigned with, and when having the broadband cell central user of described unallocated resource, described processing sub is blocked processing to the broadband cell central user of described unallocated resource.

Preferably, described device comprises that also many antenna rules are selected module, is used to described Cell Edge User to select the defeated rule of suitable multi-antenna transmitting, specifically comprises:

Submodule is set, is used to set in advance the priority list of the defeated rule of multi-antenna transmitting, and the corresponding target door limit value that triggers the defeated rule of described multi-antenna transmitting; The statistics submodule is used to add up described Cell Edge User in the communication quality average behavior of scheduling of resource in the cycle; The chooser module is used for when described user's communications quality average behavior reaches preset threshold value less than the number of times of described corresponding target door limit value, selects the defeated rule of described multi-antenna transmitting of described target door limit value correspondence.

Be compared with the prior art, technical scheme provided by the invention has the following advantages:

For Cell Edge User distributes described primary resource, for Cell Center User distributes described auxilliary resource, when evading presence of intercell interference, satisfied the service needed of user at aspects such as delay requirement and bandwidth, solved the problem that existing soft frequency and soft time-multiplexed technology exist when resource division and resource allocation, and, further improved the communication quality of Cell Edge User according to the average behavior selection multi-antenna transmitting transmission scheme of Cell Edge User in dispatching cycle.

Description of drawings

In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do simple the introduction to the accompanying drawing of required use in the present invention or the description of the Prior Art 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.

The schematic flow sheet of the method for a kind of resource allocation that Fig. 1 provides for the embodiment of the invention one;

The schematic flow sheet of the method for a kind of resource allocation that Fig. 2 provides for the embodiment of the invention two;

Fig. 3 is that a kind of running time-frequency resource in the embodiment of the invention is divided the pattern schematic diagram;

Fig. 4 is that the major-minor running time-frequency resource in each sub-district is divided the pattern schematic diagram in the embodiment of the invention;

The schematic flow sheet of the method for a kind of resource allocation that Fig. 5 provides for the embodiment of the invention three;

The structural representation of the device of a kind of resource allocation that Fig. 6 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 carried out clear, complete description, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.

The embodiment of the invention one provides the method for resource allocation in a kind of OFDM/MIMO system, community user is divided into Cell Edge User or Cell Center User, be described Cell Edge User and described Cell Center User Resources allocation, as shown in Figure 1, may further comprise the steps:

Step s101 is divided into the first resource group and the second resource group with running time-frequency resource, and described first resource group and the described second resource group are divided into a plurality of Resource Block;

Step s102 is primary resource and the auxilliary resource of cell configuration in the described first resource group according to described a plurality of Resource Block, is primary resource and the auxilliary resource of cell configuration in the described second resource group;

Step s103 distributes to described Cell Edge User with the described primary resource in described first resource group and the described second resource group, gives described Cell Center User with the described auxilliary resource allocation in described first resource group and the described second resource group.

The method of resource allocation in the OFDM/MIMO system that the application of the invention embodiment proposes, running time-frequency resource is divided, be cell configuration primary resource and auxilliary resource, and distribute described primary resource for Cell Edge User, for Cell Center User distributes described auxilliary resource, when evading presence of intercell interference, satisfied the service needed of user at aspects such as delay requirement and bandwidth, improved the communication quality of Cell Edge User.

The embodiment of the invention two provides the method for resource allocation in a kind of OFDM/MIMO system, is applied in the OFDM/MIMO system, and certainly, in actual applications, this method can also be applied in other communication systems, gives unnecessary details no longer one by one.

As shown in Figure 2, this method may further comprise the steps:

Step s201 divides running time-frequency resource.

In embodiments of the present invention, network equipment is divided running time-frequency resource, and network equipment can or can be realized other network equipments that running time-frequency resource is divided for the base station.Running time-frequency resource is the two-dimentional running time-frequency resource that a scheduling of resource cycle and system available bandwidth are formed, and the two-dimentional running time-frequency resource in the scheduling period T is divided, and the time shaft origin of coordinates that two-dimentional running time-frequency resource is set is the starting point of dispatching cycle.

Concrete, in a cell group, according to the customer service type requirement of bandwidth is divided into narrow-band user and broadband user with the user, and the type of service that narrow-band user is set requires the narrower bandwidth of CU, the bandwidth that broadband user's type of service requires the user to occupy broad.When carrying out the running time-frequency resource division, add up interior narrow-band user of cell group and broadband user's quantity respectively, be designated as M1 and M2 respectively, according to narrow-band user and the required frequency bandwidth ratio that takies of broadband user in narrow-band user and broadband user's the quantity estimation cell group.For example, narrow-band user can be set take identical bandwidth BW 1, the identical BW2 of the bandwidth that the broadband user need take, estimate then in the cell group that narrow-band user and the required frequency bandwidth ratio that takies of broadband user are (M1 * BW1): (M2 * BW2), and running time-frequency resource is divided into the first resource group and the second resource group according to this frequency bandwidth ratio; Wherein, the first resource group and the second resource group overlap on time domain, take different frequency domain resource on frequency domain.

Further, the quantity of broadband user and narrow-band user in interior each sub-district of statistics cell group, according to the narrow-band user of each sub-district in the cell group and broadband user's quantity, estimate the bandwidth demand of each sub-district to Resource Block in the first resource group and the second resource group, the first resource group is divided into n Resource Block, the second resource group is divided into n Resource Block, and wherein, n is the number of sub-district in the cell group.Wherein, n Resource Block is continuous on frequency domain in the first resource group, only takies a wherein time interval on time domain; N resource is continuous on time domain in the second resource group, only takies a certain bin width interval on frequency domain.Wherein, estimate the bandwidth demand of each sub-district according to the quantity of narrow-band user and broadband user in each sub-district to Resource Block in the first resource group and the second resource group, can adopt narrow-band user and the required same method of frequency bandwidth ratio that takies of broadband user in the above-mentioned estimation cell group, give unnecessary details no longer one by one at this.

Be understandable that according to the division of said method to running time-frequency resource, running time-frequency resource is divided into 2 resource groups, altogether 2n Resource Block.For example, when the number n=3 of sub-district in the cell group, the division pattern of the two-dimentional running time-frequency resource that scheduling of resource cycle and system's available bandwidth are formed can be referring to shown in Figure 3.

By narrow-band user in the cell group and the required frequency bandwidth ratio that takies of broadband user running time-frequency resource is divided into the first resource group and the second resource group, and each sub-district respectively is divided into n Resource Block to the bandwidth demand of Resource Block in the first resource group and the second resource group with the first resource group and the second resource group, guaranteed reasonably to community user carries out resource allocation, reduced community user and divide the improper too high problem of user's blocking rate that causes because of running time-frequency resource.

What need further specify is, in embodiments of the present invention, the first resource group and the shared frequency bandwidth ratio of the second resource group in the cell group, and each sub-district is to estimate according to the quantity of narrow-band user and broadband user in this dispatching cell grouping to the bandwidth demand of Resource Block in the first resource group and the second resource group.Certainly, can also adopt other method that running time-frequency resource is divided, for example, can be according to the correlated performance parameter of community user in the last dispatching cycle, blocking rate as the user, parameters such as the resource ratio that is not assigned with are provided with in this dispatching cycle the bandwidth demand of Resource Block in the first resource group that the shared frequency bandwidth ratio of the first resource group and the second resource group in the cell group and each sub-district take and the second resource group.Other methods that can reasonably carry out the running time-frequency resource division are protection scope of the present invention equally.

Step s202 is the major-minor running time-frequency resource of each cell configuration in the cell group, and the transmitting power of major-minor running time-frequency resource is set.

From the first resource group and the second resource group, respectively select a primary resource that satisfies the Resource Block of this bandwidth of cell demand as this sub-district, the primary resource that distributes for different districts in the cell group does not overlap mutually, and other (2n-2) individual Resource Block are as the auxilliary resource of this sub-district.

In cellular mobile system, when the big or small n of cell group got representative value 3, the major-minor running time-frequency resource in each sub-district was divided pattern as shown in Figure 4, wherein, the main running time-frequency resource of the grid respective cell of shading sign (slanted bar, netted and point-like), the auxilliary running time-frequency resource of white background grid respective cell.As can be seen from Figure 4, under the two-dimentional running time-frequency resource pattern that above-mentioned running time-frequency resource is divided and time-frequency resource allocating obtains, the employed main running time-frequency resource in any three adjacent sub-districts does not overlap mutually, thereby has reduced the annoyance level of minizone.

Be the major-minor running time-frequency resource of each cell allocation in cell group, and the transmitting power of major-minor running time-frequency resource is set.Concrete, the transmitting power of the major-minor running time-frequency resource in sub-district can be set according to user's channel situation, for example, the transmitting power that the good sub-district of channel condition can be set is lower than the transmitting power of the sub-district of bad channel conditions, and the higher transmitting power of main running time-frequency resource use is set, auxilliary running time-frequency resource uses lower transmitting power.

Step s203 obtains in the sub-district customer service type to the requirement of bandwidth, user's translational speed and RSRP (Reference Signal Received Power, Reference Signal Received Power) information.

The translational speed of obtaining the user is specially the user moving speed information that base station measurement obtains that receives;

Obtain RSRP and be specially this sub-district RSRP information that reception user measurement reports, and according to user's RSRP information the user is divided into Cell Center User and Cell Edge User, concrete division details does not repeat them here;

In addition, obtain the requirement of user business type to bandwidth, and be narrow-band user and broadband user further to the demand of bandwidth with user ID according to the customer service type, and the type of service that narrow-band user is set requires the narrower bandwidth of CU, the bandwidth that broadband user's type of service requires the user to occupy broad.

Step s204 carries out resource allocation to Cell Edge User.

Cell Edge User is divided into arrowband Cell Edge User and broadband cell edge customer according to type of service to the demand of bandwidth, respectively to arrowband Cell Edge User and broadband cell edge customer Resources allocation.

(1) is arrowband Cell Edge User Resources allocation.

Concrete, according to service delay requirement order from high to low, Cell Edge User to the arrowband sorts, and is followed successively by Cell Edge User according to delay requirement sequencing from high to low and distributes the second resource group to support in the piece of main source along time shaft by near to resource far away.Wherein, the time shaft origin of coordinates of two dimension running time-frequency resource is the starting point of dispatching cycle, the resource that the arrowband Cell Edge User that delay requirement is the highest distributes is the nearest resource of the second resource group primary resource piece middle distance time shaft, the resource that the inferior high arrowband Cell Edge User of delay requirement distributes is the nearest resource of the unappropriated second resource group primary resource piece middle distance time shaft, all arrowband Cell Edge User in the traversal sub-district.

Concrete, as to distribute the second resource group primary resource piece for the arrowband Cell Edge User according to delay requirement resource, and all arrowband Cell Edge User in the traversal sub-district have following two kinds of possible situations:

When a, the arrowband Cell Edge User in the sub-district all are assigned with the resource of the second resource group primary resource piece, finish resource allocation process to the Cell Edge User of arrowband.At this moment, the resource of the second resource group primary resource piece all is assigned to the arrowband Cell Edge User, perhaps has the resource of the remaining second resource group primary resource piece not to be assigned with.

B, resource at the second resource group primary resource piece all is assigned to the arrowband Cell Edge User, and when still having the arrowband Cell Edge User of unallocated primary resource in the sub-district, this arrowband Cell Edge User is blocked, in this dispatching cycle, no longer be arrowband Cell Edge User Resources allocation, finish resource allocation process the Cell Edge User of arrowband;

(2) be broadband cell edge customer Resources allocation.

Concrete, translational speed order from high to low according to the user, Cell Edge User to the broadband sorts, and be followed successively by Cell Edge User according to user's translational speed sequencing from high to low and distribute resource in the first resource group primary resource piece, all broadband cell edge customers in the traversal sub-district.

The resource of distributing the first resource group primary resource piece for the broadband cell edge customer according to user's translational speed, and all broadband cell edge customers in the traversal sub-district have following two kinds of possible situations:

A, the broadband cell edge customer in the sub-district have all distributed the resource of the first resource group primary resource piece, finish the resource allocation process to the Cell Edge User in broadband.At this moment, the resource of the first resource group primary resource piece all is assigned to the broadband cell edge customer, perhaps has the resource of the remaining first resource group primary resource piece not to be assigned with.

B, be assigned with in the resource of the first resource group primary resource piece and finish, and when still having the broadband cell edge customer of unallocated primary resource in the sub-district, this broadband cell edge customer is blocked, no longer be this broadband cell edge customer Resources allocation in this dispatching cycle, finish resource allocation process the Cell Edge User in broadband.

Step s205 carries out resource allocation to Cell Center User.

Same, Cell Center User can be divided the demand of bandwidth according to type of service, and Cell Center User is divided into arrowband Cell Center User and broadband cell central user, and respectively to arrowband Cell Center User and broadband cell central user Resources allocation.

(1) is arrowband Cell Center User Resources allocation.

Concrete, according to service delay requirement order from high to low, Cell Center User to the arrowband sorts, and be followed successively by Cell Center User according to delay requirement sequencing from high to low and distribute in the piece of the auxilliary source of second resource group money, this sub-district along time shaft by near to resource far away all arrowband Cell Center User in the traversal sub-district.

When the arrowband Cell Center User in the sub-district has all distributed the resource of the auxilliary Resource Block of the second resource group, finish resource allocation process to the arrowband Cell Center User.At this moment, the resource of the auxilliary Resource Block of the second resource group is all distributed to the arrowband Cell Center User, and the second resource group that perhaps has residue not to be assigned with is assisted the resource of Resource Block.

Resource at the auxilliary Resource Block of the second resource group is all distributed to the arrowband Cell Center User, and when still having the arrowband Cell Center User of unallocated resource in the sub-district, execution in step s206.

(2) be broadband cell central user Resources allocation.

Concrete, translational speed order from high to low according to the user, the broadband cell central user is sorted, and be followed successively by the broadband cell central user according to translational speed sequencing from high to low and distribute resource in the piece of the auxilliary source of first resource group money, this sub-district, all broadband cell central user in the traversal sub-district.

When the broadband cell central user in the sub-district has all been distributed the resource of the auxilliary Resource Block of the first resource group, finish resource allocation process to the Cell Edge User in broadband.At this moment, the resource of the auxilliary Resource Block of the first resource group is all distributed to the broadband cell central user, and the first resource group that perhaps has residue not to be assigned with is assisted the resource of Resource Block.

Resource at the auxilliary Resource Block of the first resource group is all distributed to the broadband cell central user, and when still having the broadband cell central user of unallocated resource in the sub-district, execution in step s206.

Step s206 judges whether the resource of the primary resource piece that residue is not assigned with, when judged result when being, execution in step s207; Otherwise flow process finishes.

Judge whether the resource of the second resource group primary resource piece that residue is not assigned with, when judged result when being, give the arrowband Cell Center User with the resource allocation of the second resource group primary resource piece that is not assigned with; Or judge whether the resource of the first resource group primary resource piece that residue is not assigned with, when judged result when being, give the broadband cell central user with the resource allocation of the first resource group primary resource piece that is not assigned with.

When judging the resource that does not remain the second resource group primary resource piece that is not assigned with, the Cell Center User that is not assigned with resource among the step s205 is blocked processing, no longer the Cell Center User Resources allocation that is not assigned with resource in this dispatching cycle.

Step s207 gives Cell Center User with the primary resource piece resource allocation that residue is not assigned with.

Concrete, discuss in two kinds of situation:

(1) for the arrowband Cell Center User of unallocated resource.

When judgement has the resource of the second resource group primary resource piece that residue is not assigned with, be followed successively by Cell Center User according to delay requirement sequencing from high to low and distribute in the unappropriated second resource group primary resource piece of residue along time shaft by near to resource far away the arrowband Cell Center User of all unallocated resources in the traversal sub-district.

When the arrowband of all unallocated resources Cell Center User all is assigned with the resource of the residue second resource group primary resource piece, finish resource allocation process to the Cell Center User of arrowband.

When being assigned with, the resource that remains the second resource group primary resource piece finishes, and when still having the arrowband Cell Center User of resource to be allocated in the sub-district, this arrowband Cell Center User is blocked, and no longer is this arrowband Cell Edge User Resources allocation in this dispatching cycle.

(2) for the broadband cell central user of unallocated resource.

When judgement has the resource of the first resource group primary resource piece that residue is not assigned with, be followed successively by Cell Center User according to translational speed sequencing from high to low and distribute the resource that remains in the unappropriated first resource group primary resource piece, all are not assigned with the broadband cell central user of resource in the traversal sub-district.

When the broadband cell central user of all unallocated resources has all been distributed the resource that remains the first resource group primary resource piece, finish resource allocation process to the Cell Center User in broadband.

When being assigned with, the resource that remains the first resource group primary resource piece finishes, and when still having the broadband cell central user of resource to be allocated in the sub-district, treating the broadband cell central user of Resources allocation and block, no longer is this broadband cell edge customer Resources allocation in this dispatching cycle.

Above-mentionedly distribute two kinds of situations of remaining primary resource piece resource not need to take place simultaneously for the arrowband Cell Center User of unallocated resource and broadband cell central user, when if the arrowband Cell Center User all has been assigned with the resource of the auxilliary Resource Block of the second resource group in step s205, need not to distribute for the arrowband Cell Center User again the resource of remaining primary resource.

In addition, need to prove, in embodiments of the present invention, the preferential resource of using the second resource group primary resource piece of Cell Edge User, Cell Center User uses the resource of the auxilliary Resource Block of the second resource group and the primary resource that is not assigned with, in the interference of evading the minizone, satisfy the delay requirement and the bandwidth requirement that bandwidth occupancy are required low user, improved the quality of communication.

Among the above-mentioned steps s204-s207, can also add up the ratio of the blocking rate of user in the sub-district and the resource that is not assigned with, in next dispatching cycle, other parameters such as ratio of the resource that can utilize the blocking rate of user in this dispatching cycle and not be assigned with are divided two-dimentional running time-frequency resource, thereby rationally the user carries out resource allocation in the sub-district, status, improves user's communications quality in the sub-district.

Finish Cell Edge User and Cell Center User distributed primary resource and auxilliary resource respectively after, the average behavior of statistics Cell Edge User in dispatching cycle, user's average behavior can be user BLER, and be standard with user's statistical average performance, for the user selects suitable many antenna scheme, further body improves the communication quality of Cell Edge User.

The method of resource allocation in the OFDM/MIMO system that the application of the invention embodiment proposes, for Cell Edge User distributes primary resource, for Cell Center User distributes auxilliary resource, when evading presence of intercell interference, satisfied the service needed of user, improved the communication quality of Cell Edge User at aspects such as delay requirement and bandwidth.

In the above-described embodiments, be delay requirement and the bandwidth demand that Cell Edge User distribution running time-frequency resource has satisfied the user according to the customer service type to the requirement of bandwidth and user's translational speed, improved the communication performance of Cell Edge User.In the OFDM/MIMO system, the method for stating in the use is after Cell Edge User distributes running time-frequency resource, can also select suitable many antenna scheme to improve the communication quality of Cell Edge User for the user according to the statistical average performance of Cell Edge User.

The embodiment of the invention three also provides the method for resource allocation in a kind of OFDM/MIMO system, be applied in the OFDM/MIMO communication system to improve the communication quality of Cell Edge User, wherein, adjust many antenna scheme to improve the communication quality of Cell Edge User according to the statistical average performance of Cell Edge User.

As shown in Figure 5, this method may further comprise the steps:

Step s501 sets in advance the priority list of multi-antenna transmitting transmission scheme, and the target door limit value is set.

Set in advance the priority list of multiple alternative multi-antenna transmitting transmission scheme, be used for the multi-antenna transmitting transmission scheme of selecting certain priority when pre-conditioned satisfying; The target door limit value is set, by the size of the statistical average performance of Cell Edge User in dispatching cycle relatively, as the trigger condition of the many antenna scheme of selection with the target door limit value of setting.

When the statistical average performance of Cell Edge User in dispatching cycle during less than the target door limit value that is provided with, timer adds up to the number of times that satisfies this trigger condition, timer compares the number of times that adds up and the hop threshold of setting, the number of times that adds up when timer is selected the multi-antenna transmitting transmission scheme of current correspondence during greater than hop threshold.Wherein, the value of target door limit value and hop threshold can be set according to the channel conditions of reality.

For example, the priority list that the multi-antenna transmitting transmission scheme is set is as shown in table 1, and the many antenna scheme that have three kinds of priority to successively decrease in the table 1 combine reliability and to two factors of interference effect of peripheral cell when the prioritization of many antenna scheme.

The priority list of table 1 multi-antenna transmitting transmission scheme

Priority	The multi-antenna transmitting transmission scheme	Reliability	Interference effect to peripheral cell
Priority	The multi-antenna transmitting transmission scheme	Reliability	Interference effect to peripheral cell	??1	Multiplexing entirely	Low	Identical with single antenna
??2	SFBC or STBC	In	Identical with single antenna	??1	Multiplexing entirely	Low	Identical with single antenna
??2	SFBC or STBC	In	Identical with single antenna	??3	Beam shaping	High	Stronger

In embodiments of the present invention, as the performance standard of selecting the multi-antenna transmitting transmission scheme, respective cell inward flange user's average behavior BLER is provided with target door limit value 0＜BLER by the average behavior BLER of statistics sub-district inward flange user in this dispatching cycle _Th1＜BLER _Th2, by target door limit value BLER _ThCompare with the average behavior BLER of user in dispatching cycle, as the trigger condition of multi-antenna transmitting transmission scheme.

Timer Counter_1～Counter_3 is set to be used for satisfying certain trigger condition continuously (as BLER＜BLER _Th1) number of times add up, and the number of times and the hop threshold N1～N3 of Counter_1～Counter_3 accumulative total compared, to select suitable multi-antenna transmitting transmission scheme.

Certainly, the size of target door limit value and hop threshold can be looked actual channel condition and be selected, when channel condition is better, and target door limit value BLER _Th1And BLER _Th2Value can suitably reduce, when channel variation is slow, can suitably reduce the value of hop threshold N1～N3.

Need to prove,, only need corresponding target door limit value, counter and the isoparametric number of hop threshold of increasing when alternative multi-antenna transmitting transmission scheme quantity is 4,5 or more for a long time.For example, when having 5 multi-antenna transmitting transmission schemes, target door limit value 0＜BLER is set _Th1＜BLER _Th2＜BLER _Th3＜BLER _Th4, and 5 timers and 5 hop threshold are set, the multi-antenna transmitting transmission scheme is selected.

Step s502, initiation parameter.

Initialization Index=1, Counter_1=0, Counter_2=0, Counter_3=0, wherein, Index is selectable multi-antenna transmitting transmission scheme corresponding sequence number.

By counter is set the number of times that satisfies trigger condition is added up, and when the number of times of Counter_1 accumulation greater than the number of times of hop threshold N1, Counter_2 accumulation greater than the number of times of hop threshold N2, Counter_3 accumulation during greater than hop threshold N3, Index is upgraded, avoided the frequent saltus step that causes because of the environment acute variation.

Need to prove, initialization procedure to Index and Counter_1～Counter_3 was only carried out when first dispatching cycle, T began, the multi-antenna transmitting transmission scheme of Cell Edge User is selected in finishing first dispatching cycle of T, entered when next dispatching cycle, T carried out the selection of multi-antenna transmitting transmission scheme, need not each parameter is carried out initialization, the value of parameter I ndex and Counter_1～Counter_3 is to finish the value of T after dispatching cycle for the first time, circulates in next dispatching cycle according to the method described above.

Step s503, the average BLER of statistics Cell Edge User i in dispatching cycle T _i

Step s504 judges BLER _iWhether less than BLER _Th1, be execution in step s505 then, otherwise execution in step s508.

Whether step s505 judges Counter_1 greater than N1, is execution in step s506 then, otherwise execution in step s507.

Step s506 is provided with Index=1, empties counter Counter_2 and Counter_3.

When judging Counter_1 greater than N1, Index=1 is set, the Counter_1 value remains unchanged, empty counter Counter_2=0, Counter_3=0, and select the multi-antenna transmitting transmission scheme of Index=1 item correspondence in the tabulation of many antennas, execution in step s515 enters next dispatching cycle.

Step s507, the Counter_1 counter adds 1.

When judging that Counter_1 is not more than N1, the Counter_1 counter is set to be added 1 time, the Index value remains unchanged, the value of Counter_2 and Counte_3 remains unchanged, and and select the multi-antenna transmitting transmission scheme of Index item correspondence in the tabulation of many antennas, execution in step s515 enters next dispatching cycle.

Step 508 is judged BLER _iWhether less than BLER _Th2, be execution in step 509 then, otherwise jump to step 512.

Owing to set in advance target door limit value 0＜BLER _Th1＜BLER _Th2, judging BLER _iBe not less than BLER _Th1The time, judge BLER again _iWhether less than BLER _Th2, execution in step s508.

Whether step 509 judges Counter_2 greater than N2, is execution in step 510 then, otherwise jumps to step 511.

Step 510 is provided with Index=2, empties counter Counter_1 and Counter_3.

When judging Counter_2 greater than N2, Index=2 is set, the Counter_2 value remains unchanged, empty counter Counter_1=0, Counter_3=0, and select the multi-antenna transmitting transmission scheme of Index=2 item correspondence in the tabulation of many antennas, execution in step s515 enters next dispatching cycle.

Step 511, the Counter_2 counter adds 1.

When judging that Counter_2 is not more than N1, the Counter_2 counter is set to be added 1 time, the Index value remains unchanged, the value of Counter_1 and Counter_3 remains unchanged, and select the multi-antenna transmitting transmission scheme of Index item correspondence in the tabulation of many antennas, execution in step s515 enters next dispatching cycle.

Whether step 512 judges Counter_3 greater than N3, is execution in step 513 then, otherwise jumps to step 514.

Step 513 is provided with Index=3, empties counter Counter_1 and Counter_2.

When judging Counter_3 greater than N3, Index=3 is set, the Counter_3 value remains unchanged, empty counter Counter_1=0, Counter_2=0, and select the multi-antenna transmitting transmission scheme of Index=3 item correspondence in the tabulation of many antennas, execution in step s515 enters next dispatching cycle.

Step 514, the Counter_3 counter adds 1.

When judging that Counter_3 is not more than N1, the Counter_3 counter is set to be added 1 time, the Index value remains unchanged, the value of Counter_1 and Counter_2 remains unchanged, and select the multi-antenna transmitting transmission scheme of Index item correspondence in the tabulation of many antennas, execution in step s515 enters next dispatching cycle.

Step 515 is provided with edge customer i and uses the multi-antenna transmitting transmission scheme of many antenna scheme list priority as Index item correspondence, and jumps to following one-period and carry out the step that video resource is divided.

In following one-period, the user is carried out the multi-antenna transmitting transmission scheme when selecting, step s501 and step s502 need not to carry out, in following one-period, finish to after the Cell Edge User Resources allocation, direct execution in step s503, (value of Index and Counter_1～Counter_3) is all got the parameter value after finishing in this dispatching cycle to each relevant parameter, and circulates between adjacent two dispatching cycles.

The method of scheduling of resource in the OFDM/MIMO system that the application of the invention embodiment proposes, the major-minor resource of each cell configuration, and distribute described primary resource for Cell Edge User, for Cell Center User distributes described auxilliary resource, when evading presence of intercell interference, satisfied the service needed of user, and selected the multi-antenna transmitting transmission scheme, further improved the communication quality of Cell Edge User according to the average behavior of Cell Edge User in dispatching cycle at aspects such as delay requirement and bandwidth.

The embodiment of the invention also provides the device of resource allocation in a kind of OFDM/MIMO system, and community user is divided into Cell Edge User or Cell Center User, is Cell Edge User and Cell Center User Resources allocation, and as shown in Figure 6, this device comprises:

Divide module 10, be used for running time-frequency resource is divided into the first resource group and the second resource group, and the first resource group and the second resource group are divided into a plurality of Resource Block;

Configuration module 20 is used to divide module 10 and divides a plurality of Resource Block that obtain, and is primary resource and the auxilliary resource of cell configuration in the first resource group, is primary resource and the auxilliary resource of cell configuration in the second resource group;

Resource distribution module 30, be used for configuration module 20 for being primary resource and the auxilliary resource of cell configuration in the first resource group, be primary resource and the auxilliary resource of cell configuration in the second resource group, primary resource in the first resource group and the second resource group is distributed to Cell Edge User, give Cell Center User the auxilliary resource allocation in the first resource group and the second resource group.

Wherein,

Divide module 10 and specifically be used for, dividing running time-frequency resource is the first resource group and the second resource group, and wherein, the first resource group and the second resource group overlap on time domain, take different frequency domain resource on frequency domain; Dividing the first resource group and the second resource group respectively is n Resource Block, and n is the number of sub-district, and n Resource Block is continuous on frequency domain in the first resource group, and n resource is continuous on time domain in the second resource group;

Configuration module 20 specifically is used for, for a Resource Block in the cell allocation first resource group as the primary resource of sub-district in the first resource group, the primary resource of distributing in each sub-district first resource group does not overlap mutually, and the individual Resource Block of residue (n-1) in the first resource group is as the auxilliary resource of sub-district; For a Resource Block in the cell allocation second resource group as the primary resource of sub-district in the second resource group, the primary resource of distributing in each sub-district second resource group does not overlap mutually, the individual Resource Block of residue (n-1) in the second resource group is as the auxilliary resource of sub-district.

Wherein, divide module 10 and also be used for, the reference signal receiving intensity RSRP that measurement reports according to community user is divided into Cell Edge User and Cell Center User with community user; Obtain the translational speed of community user and the type of service of support, the frequency bandwidth that takies according to the community user type of service requires Cell Edge User is divided into arrowband Cell Edge User and broadband cell edge customer, and Cell Center User is divided into arrowband Cell Center User and broadband cell user;

Resource distribution module 30 specifically comprises distribution sub module 31, judges submodule 32 and processing sub 33;

When Cell Edge User is the arrowband Cell Edge User, according to QoS of customer QoS priority the arrowband Cell Edge User is sorted, distribution sub module 31 according to the height of QoS priority be followed successively by in proper order the arrowband Cell Edge User distribute in the second resource group primary resource piece along time shaft by near to resource far away; Behind the traversal arrowband Cell Edge User, judge that submodule 32 judges whether to exist the arrowband Cell Edge User of unallocated resource, when judged result when being, the arrowband Cell Edge User of 33 pairs of unallocated resources of processing sub blocks processing;

When Cell Edge User is the broadband cell edge customer, according to user moving speed the broadband cell edge customer is sorted, distribution sub module 31 is followed successively by the resource that the broadband cell edge customer distributes primary resource piece in the first resource group in proper order according to the height of user moving speed; Behind the traversal broadband cell edge customer, judge that submodule 32 judges whether to exist the broadband cell edge customer of unallocated resource, when judged result when being, the broadband cell edge customer of 33 pairs of unallocated resources of processing sub blocks processing.

Wherein, resource distribution module 30 specifically comprises distribution sub module 31, judges submodule 32 and processing sub 33;

When Cell Center User is the arrowband Cell Center User:

According to QoS priority the arrowband Cell Center User is sorted, distribution sub module 31 according to the height of QoS priority be followed successively by in proper order the arrowband Cell Center User distribute in the second resource group auxilliary Resource Block along time shaft by near to resource far away; If traversal arrowband Cell Center User when having the arrowband Cell Center User of unallocated resource, judges that submodule 32 judges whether to exist the primary resource of the second resource group that residue is not assigned with,

When judged result for not the time, the arrowband Cell Center User of 33 pairs of unallocated resources of processing sub blocks processing; When judged result when being, the primary resource piece that distribution sub module 31 is distributed the second resource group that residue is not assigned with for the arrowband Cell Center User of unallocated resource along time shaft by near to resource far away; Travel through the arrowband Cell Center User of unallocated resource, primary resource assigns in the second resource group that residue is not assigned with, and when having the arrowband Cell Center User of unallocated resource, the arrowband Cell Center User of 33 pairs of unallocated resources of processing sub blocks processing;

When Cell Center User is the broadband cell central user:

According to user moving speed the broadband cell central user is sorted, distribution sub module 31 is followed successively by the resource that the arrowband Cell Center User distributes auxilliary Resource Block in the first resource group in proper order according to the height of user moving speed; If traversal broadband cell central user when having the broadband cell central user of unallocated resource, judges that submodule 32 judges whether to have primary resource in the first resource group that residue is not assigned with,

When judged result for not the time, the broadband cell central user of 33 pairs of unallocated resources of processing sub is blocked processing; When judged result when being, distribution sub module 31 is distributed the primary resource of the first resource group that residue is not assigned with for the broadband cell central user of unallocated resource; Travel through the broadband cell central user of unallocated resource, primary resource assigns in the first resource group that residue is not assigned with, and when having the broadband cell central user of unallocated resource, the broadband cell central user of 33 pairs of unallocated resources of processing sub is blocked processing.

Preferably, device comprises that also many antenna rules are selected module 40, is used to Cell Edge User to select the defeated rule of suitable multi-antenna transmitting, specifically comprises:

Submodule 41 is set, is used to set in advance the priority list of the defeated rule of multi-antenna transmitting, and the corresponding target door limit value that triggers the defeated rule of multi-antenna transmitting; Statistics submodule 42 is used to add up Cell Edge User in the communication quality average behavior of scheduling of resource in the cycle; Chooser module 43 is used for when user's communications quality average behavior reaches preset threshold value less than the number of times of corresponding target door limit value, the defeated rule of the multi-antenna transmitting of select target threshold value correspondence.

The device of resource allocation in the OFDM/MIMO system that the application of the invention embodiment proposes, the major-minor resource of each cell configuration, and be that Cell Edge User distributes primary resource, for Cell Center User distributes described auxilliary resource, when evading presence of intercell interference, satisfied the service needed of user, and selected the multi-antenna transmitting transmission scheme, further improved the communication quality of Cell Edge User according to the average behavior of Cell Edge User in dispatching cycle at aspects such as delay requirement and bandwidth.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.

Claims

1. the method for resource allocation in the OFDM/MIMO system is characterized in that, community user is divided into Cell Edge User or Cell Center User, is described Cell Edge User and described Cell Center User Resources allocation, said method comprising the steps of:

2. the method for claim 1 is characterized in that,

3. method as claimed in claim 2 is characterized in that, the reference signal receiving intensity RSRP that measurement reports according to community user is divided into described Cell Edge User and described Cell Center User with described community user; Obtain the translational speed of described community user and the type of service of support, the frequency bandwidth that takies according to described community user type of service requires described Cell Edge User is divided into arrowband Cell Edge User and broadband cell edge customer, and described Cell Center User is divided into arrowband Cell Center User and broadband cell user;

4. method as claimed in claim 3 is characterized in that, gives described Cell Center User with the described auxilliary resource allocation in described first resource group and the described second resource group, specifically comprises:

When described Cell Center User is the arrowband Cell Center User:

When described Cell Center User is the broadband cell central user:

5. the method for claim 1 is characterized in that, is described Cell Edge User and described Cell Center User Resources allocation, also comprises afterwards:

6. the device of resource allocation in the OFDM/MIMO system is characterized in that, community user is divided into Cell Edge User or Cell Center User, is described Cell Edge User and described Cell Center User Resources allocation, and described device comprises:

7. device as claimed in claim 6 is characterized in that,

8. device as claimed in claim 7 is characterized in that, described division module also is used for, and the reference signal receiving intensity RSRP that measurement reports according to community user is divided into described Cell Edge User and described Cell Center User with described community user; Obtain the translational speed of described community user and the type of service of support, the frequency bandwidth that takies according to described community user type of service requires described Cell Edge User is divided into arrowband Cell Edge User and broadband cell edge customer, and described Cell Center User is divided into arrowband Cell Center User and broadband cell user;

9. device as claimed in claim 7 is characterized in that, described resource distribution module specifically comprises distribution sub module, judges submodule and processing sub;

When described Cell Center User is the arrowband Cell Center User:

When described Cell Center User is the broadband cell central user:

10. device as claimed in claim 6 is characterized in that, described device comprises that also many antenna rules are selected module, is used to described Cell Edge User to select the defeated rule of suitable multi-antenna transmitting, specifically comprises: