CN101860912A - Resource allocation method, device and system - Google Patents

Abstract

The invention discloses a resource allocation method, a resource allocation device and a resource allocation system, which are used in a system comprising a base station scheduler and at least two base station coordinators, wherein the at least two base station coordinators are used for generating cell load information of corresponding cells respectively. The method comprises the following steps that: a base station coordinator of a local cell exchanges cell load information with a corresponding base station coordinator of a neighboring cell; the corresponding base station coordinator of the local cell determines the resource allocation priority of users of the local cell according to the exchanged cell load information; the corresponding base station coordinator of the local cell outputs the resource allocation priority of the users of the local cell to the base station scheduler; and the base station scheduler allocates resources according to the resource allocation priority of the users of the local cell. In the embodiment of the invention, the resource allocation priority of the users is determined according to the cell load information, so the performance of the edge users of the cell is improved and the aim of inter-cell interference coordination is fulfilled.

Description

A kind of resource allocation methods, device and system

Technical field

The present invention relates to the mobile communication technology field, particularly relate to a kind of resource allocation methods, device and system.

Background technology

In LTE (Long Term Evolution, Long Term Evolution) system, allocation of radio resources mechanism is different with traditional approach, and base station dispatcher is dynamically controlled time-frequency resource allocating, gives some users with some frequency resource allocation in Preset Time.The LTE system is based on all-IP (Internet Protocol, Internet protocol) packet switching network, system bandwidth at 1.25MHz between the 20MHz, correlation bandwidth greater than the typical scene channel, utilize the wireless channel fading characteristic to carry out the time-frequency two-dimensional scheduling, when guaranteeing user QoS (Quality of Service, service quality), maximized system capacity.In the scheduling of resource process, whole frequency is divided into equal-sized Resource Block, and in the beginning of each subframe, base station dispatcher is given different users according to specific dispatching algorithm with above-mentioned resource block assignments.For the throughput of taking into account system and user's qos requirement, need provide external information for base station dispatcher, as queue length of subscriber channel situation, data etc.Base station dispatcher need be taken all factors into consideration various factors, when making full use of channel condition information and user service information, reduces the expense of signaling and other each side as far as possible, improves the performance of system to greatest extent.

In scheduling process, Resource Block and corresponding transformat that down link is got by using descending control signaling notice UE (User Equipment, subscriber equipment).Up link can be based on the access of scheduling, also can be based on the access of competition, when up link be based on the scheduling access the time, UE dynamically gets certain frequency resource in a period of time, carry out upstream data and send, descending control signaling notice UE divide Resource Block and corresponding transformat.

The LTE system adopts OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology, high-speed data is divided into parallel low speed data transmits on the subcarrier of one group of quadrature.Add guard time in each OFDM symbol, need only guard time greater than multidiameter delay, then the multipath component of an OFDM symbol just can not disturb adjacent OFDM symbol, can eliminate ISI (Inter-Symbol Interference, intersymbol interference).In order to guarantee the orthogonality between the subcarrier, the OFDM symbol can send CP (Cyclic Prefix, Cyclic Prefix) in guard time.CP moves head with the signal of OFDM symbol afterbody to constitute, and can guarantee the integrality and the orthogonality of each subcarrier, can not cause the interference between subcarrier.Because the factors such as skew of sub-carrier frequencies and phase place can cause the interference between subchannel, can adopt advanced signal processing technology to drop to minimum in the LTE system in physical layer.Therefore, interference can be ignored in the sub-district, and the interference that influences the LTE systematic function is mainly ICI (Inter-Cell Interference, presence of intercell interference).Particularly in frequency duplex factor as one is 1 LTE system, all sub-districts all use identical frequency resource to provide service for user in this sub-district in the whole LTE system, resource allocation meeting in sub-district has influence on the power system capacity of other sub-districts and the performance of Cell Edge User, therefore need to introduce Inter-Cell Interference Coordination mechanism, to reduce ICI.

Inter-Cell Interference Coordination mechanism is primarily aimed at the different resource between the different districts, comprises running time-frequency resource and power resource, carries out the mutual coordination of minizone and control mutually.In the prior art, Inter-Cell Interference Coordination mechanism is provided with the operating position of edge customer to frequency resource, and this operating position is exported to base station dispatcher.Base station dispatcher according to Cell Edge User to relevant informations such as the operating position of frequency resource and channel quality informations, to user resource allocation.

The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:

Coordinating district interference mechanism is fixed the setting of the operating position of Cell Edge User frequency of utilization resource, Cell Edge User can dynamically not adjusted because of the variation of minizone load information the operating position of frequency resource, is unfavorable for the lifting of community marginal user performance.

Summary of the invention

The embodiment of the invention provides a kind of resource allocation methods, device and system, has improved the performance of Cell Edge User.

The embodiment of the invention proposes a kind of resource allocation methods, be applied to comprise in the system of base station dispatcher and at least two base station telegons, described at least two base station telegons are respectively applied for the cell load information that generates respective cell, said method comprising the steps of:

The base station telegon that the base station telegon of this sub-district correspondence is corresponding with neighbor cell carries out the mutual of described cell load information;

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of this community user according to described mutual cell load information;

The base station telegon of described this sub-district correspondence is exported to described base station dispatcher with the priority of resource allocation of described community user;

Described base station dispatcher carries out resource allocation according to the priority of resource allocation of described community user.

Preferably, the base station telegon that the base station telegon of described this sub-district correspondence is corresponding with described neighbor cell carries out comprising alternately of cell load information:

The base station telegon of described this sub-district correspondence receives the cell load information from the described neighbor cell of the base station telegon of described neighbor cell correspondence; And/or

The base station telegon of described this sub-district correspondence sends the cell load information of described this sub-district to the base station of described neighbor cell correspondence telegon.

Preferably, described cell load information comprises uplink load information and/or down load information, and described priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority,

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of this community user according to described mutual cell load information, comprising:

The base station telegon of described this sub-district correspondence determines that according to described uplink load information the ascending resource of described community user distributes priority; And/or

The base station telegon of described this sub-district correspondence determines that according to described down load information the downlink resource of described community user distributes priority.

Preferably, described community user comprises this Cell Edge User, and described uplink load information comprises high interference indication HII parameter and/or overload indication OI parameter,

The base station telegon of described this sub-district correspondence comprises to the cell load information of described this sub-district of the base station of described neighbor cell correspondence telegon transmission:

The base station telegon of described this sub-district correspondence sends the message that comprises described HII parameter to the base station of described neighbor cell correspondence telegon, and described HII parameter is used for distributing in setting-up time to described this sub-district of the base station of described neighbor cell correspondence telegon indication the Resource Unit RU of described Cell Edge User; And/or

The base station telegon of described this sub-district correspondence sends the message that comprises described OI parameter to the base station of described neighbor cell correspondence telegon, and described OI parameter is used for the level of interference to the base station of described neighbor cell correspondence telegon indication RU.

Preferably, described HII parameter is provided with the distribution indication bit at each RU, and described distribution indication bit is used to indicate whether described RU is distributed to described Cell Edge User; And/or

Described OI parameter is provided with the interference indication bit at each RU, and described interference indication bit is used to indicate the level of interference of described RU.

Preferably, the base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, comprising:

RU at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the uplink load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the uplink load information of the described described neighbor cell that receives the ascending resource of described Cell Edge User distributes priority;

The ascending resource of described Cell Edge User distributes the weights of priority by formula

$p_{\mathrm{scheduling}}=a_1*n_{\mathrm{HII}}+a_2*\underset{k=0}{\overset{2}{\mathrm{\Σ}}}(k*n_k)+a_3*{\mathrm{HII}}_s+a_4*k_s$ Obtain,

Wherein, described p _SchedulingThe weights that distribute priority for the ascending resource of described Cell Edge User;

Described n _HIINumber for the neighbor cell of the edge customer of described RU being distributed to self by the indication of described HII parameter;

The value of described k is 0,1 or 2, in the message that comprises the OI parameter from the base station telegon of described neighbor cell correspondence that the base station telegon of corresponding respectively described this sub-district correspondence receives, the interference indication bit value of described RU correspondence is 00,01 or 10 situation;

Described n _kFor indicate the level of interference of described RU and the number of the corresponding neighbor cell of described k by described OI parameter;

Described HII _sValue be 1 or 0, the base station telegon of corresponding respectively this sub-district correspondence in the message that comprises the HII parameter that the base station of described neighbor cell correspondence telegon sends, the distribution indication bit value of described RU correspondence;

Described k _sValue be 0,1 or 2, the base station telegon of corresponding respectively this sub-district correspondence is in the message that comprises the OI parameter that the base station of described neighbor cell correspondence telegon sends, the interference indication bit value of described RU correspondence is 00,01 or 10 situation;

Described a ₁, described a ₂, described a ₃With described a ₄Value be arbitrary value, described a ₁, described a ₂, described a ₃With described a ₄Different values to tackling the different disposal strategy of described uplink load information.

Preferably, described community user also comprises this Cell Center User,

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, also comprises:

RU at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the uplink load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the uplink load information of the described described neighbor cell that receives the ascending resource of described Cell Center User distributes priority;

The ascending resource of described Cell Center User distributes the weights of priority by formula

$p_{\mathrm{scheduling}}^{\′}=a_1^{\′}*n_{\mathrm{HII}}+a_2^{\′}*\underset{k=0}{\overset{2}{\mathrm{\Σ}}}(k*n_k)+a_3^{\′}*{\mathrm{HII}}_s+a_4^{\′}*k_s$ Obtain,

Wherein, described p ' _SchedulingThe weights that distribute priority for the ascending resource of described Cell Center User;

Described n _HIINumber for the neighbor cell of the edge customer of described RU being distributed to self by the indication of described HII parameter;

The value of described k is 0,1 or 2, in the message that comprises the OI parameter from the base station telegon of described neighbor cell correspondence that the base station telegon of corresponding respectively described this sub-district correspondence receives, the interference indication bit value of described RU correspondence is 00,01 or 10 situation;

Described n _kFor indicate the level of interference of described RU and the number of the corresponding neighbor cell of described k by described OI parameter;

Described HII _sValue be 1 or 0, the base station telegon of corresponding respectively described this sub-district correspondence in the message that comprises the HII parameter that the base station of described neighbor cell correspondence telegon sends, the distribution indication bit value of described RU correspondence;

Described k _sValue be 0,1 or 2, the base station telegon of corresponding respectively described this sub-district correspondence is in the message that comprises the OI parameter that the base station of described neighbor cell correspondence telegon sends, and the interference indication bit value of the level of interference correspondence of described RU is 00,01 or 10 situation;

Described a ' ₁, described a ' ₂, described a ' ₃With described a ' ₄Value be arbitrary value, described a ' ₁, described a ' ₂, described a ' ₃With described a ' ₄Different values to tackling the different disposal strategy of described uplink load information.

Preferably, described down load information comprises relevant narrow emission power indication RNTP parameter.

Preferably, described community user comprises this Cell Edge User,

The base station telegon of described this sub-district correspondence comprises to the cell load information of described this sub-district of the base station of described neighbor cell correspondence telegon transmission:

The base station telegon of described this sub-district correspondence sends the message that comprises described RNTP parameter to the base station of described neighbor cell correspondence telegon, and described RNTP parameter is used for to the base station of described neighbor cell correspondence telegon described this sub-district of indication down transmitting power grade on the Physical Resource Block PRB in setting-up time.

Preferably, described RNTP parameter is provided with the power indication bit at each PRB, and described power indication bit is used to indicate the down transmitting power grade of this sub-district on described PRB.

Preferably, the base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, comprising:

PRB at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the down load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the down load information of the described described neighbor cell that receives the downlink resource of described Cell Edge User distributes priority;

The downlink resource of described Cell Edge User distributes the weights of priority by formula

q _Scheduling=b ₁* n _RNTP+ b ₂* RNTP _sObtain,

Wherein, described q _SchedulingThe weights that distribute priority for the downlink resource of described Cell Edge User;

Described n _RNTPFor indicating the down transmitting power grade on described PRB by the RNTP parameter is the number of the neighbor cell of high power level;

Described RNTP _sValue be 1 or 0, the base station telegon of corresponding respectively described this sub-district correspondence is in the message that comprises the RNTP parameter that the base station of described neighbor cell correspondence telegon sends, the power indication bit value of described PRB correspondence is 1 or 0 situation;

Described b ₁With described b ₂Value be arbitrary value, described b ₁With described b ₂Different values to tackling the different disposal strategy of described down load information.

Preferably, described community user also comprises this Cell Center User,

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, also comprises:

PRB at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the down load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the down load information of the described described neighbor cell that receives the downlink resource of described Cell Center User distributes priority;

The downlink resource of described Cell Center User distributes the weights of priority by formula

Q ' _Scheduling=b ' ₁* n _RNTP+ b ' ₂* RNTP _sObtain,

Wherein, described q ' _SchedulingThe weights that distribute priority for the downlink resource of this Cell Center User;

Described n _RNTPFor indicating the down transmitting power grade on described PRB by the RNTP parameter is the number of the neighbor cell of high power level;

Described RNTP _sValue be 1 or 0, the base station telegon of corresponding respectively described this sub-district correspondence is in the message that comprises the RNTP parameter that the base station of described neighbor cell correspondence telegon sends, the power indication bit value of described PRB correspondence is 1 or 0 situation;

Described b ' ₁With described b ' ₂Value be arbitrary value, described b ' ₁With described b ' ₂Different values to tackling the different disposal strategy of described down load information.

The embodiment of the invention also proposes a kind of base station telegon, is applied to comprise in the system of base station dispatcher and at least two base station telegons, and described at least two base station telegons are respectively applied for the cell load information that generates respective cell, and described base station telegon comprises:

Interactive module is used for the base station telegon corresponding with neighbor cell and carries out the mutual of cell load information;

Acquisition module electrically connects with described interactive module, is used for determining the priority of resource allocation of this community user according to the mutual cell load information of described interactive module;

Output module electrically connects with described acquisition module, and the priority of resource allocation that is used for this community user that described acquisition module is definite is exported to base station dispatcher.

Preferably, described interactive module comprises:

Receive submodule, be used to receive the cell load information of the described neighbor cell that the base station telegon of described neighbor cell correspondence sends; And/or

Send submodule, be used for sending the cell load information of described this sub-district to the base station of described neighbor cell correspondence telegon.

Preferably, described cell load information comprises uplink load information and/or down load information, and described priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority,

Described acquisition module comprises:

Up acquisition module is used for according to described uplink load information, determines that the ascending resource of described community user distributes priority; And/or

Descending acquisition module is used for according to described down load information, determines that the downlink resource of described community user distributes priority.

Preferably, described community user comprises this Cell Edge User, and described uplink load information comprises high interference indication HII parameter and/or overload indication OI parameter,

Described transmission submodule, also be used for sending the message that comprises described HII parameter to the base station of described neighbor cell correspondence telegon, described HII parameter is used for distributing in setting-up time to described this sub-district of the base station of described neighbor cell correspondence telegon indication the Resource Unit RU of described Cell Edge User; And/or

Send the message that comprises described OI parameter to the base station of described neighbor cell correspondence telegon, described OI parameter is used for the level of interference to the base station of described neighbor cell correspondence telegon indication RU.

Preferably, described down load information comprises relevant narrow emission power indication RNTP parameter,

Described transmission submodule, also be used for sending the message that comprises described RNTP parameter to the base station of described neighbor cell correspondence telegon, described RNTP parameter is used for to the base station of described neighbor cell correspondence telegon described this sub-district of indication down transmitting power grade on the Physical Resource Block PRB in setting-up time.

The embodiment of the invention also proposes a kind of resource allocation system, comprises base station dispatcher and at least two base station telegons, and described at least two base station telegons are respectively applied for the cell load information that generates respective cell,

Described base station telegon, be used for the base station telegon corresponding and carry out the mutual of described cell load information with neighbor cell, according to described mutual cell load information, determine the priority of resource allocation of this community user, the priority of resource allocation of described community user is exported to described base station dispatcher;

Described base station dispatcher is used for the priority of resource allocation according to described community user of described base station telegon output, carries out resource allocation.

The technical scheme of the embodiment of the invention has the following advantages, because determine user's priority of resource allocation according to cell load information, and this priority of resource allocation exported to base station dispatcher, for base station dispatcher is user resource allocation, thereby, improve the performance of Cell Edge User, realized the purpose of Inter-Cell Interference Coordination.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment 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.

Fig. 1 is a kind of resource allocation methods flow chart in the embodiment of the invention one;

Fig. 2 is a kind of resource allocation methods flow chart in the embodiment of the invention two;

Fig. 3 is a kind of resource allocation methods flow chart in the embodiment of the invention three;

Fig. 4 is a kind of base station telegon structural representation in the embodiment of the invention four;

Fig. 5 is a kind of resource allocation system structural representation in the embodiment of the invention five.

Embodiment

Inter-Cell Interference Coordination mechanism in the embodiment of the invention is according to cell load information mutual between neighbor cell, determine the priority of resource allocation of edge customer and central user respectively, and each user's priority of resource allocation exported to base station dispatcher, for base station dispatcher to each user resource allocation.Corresponding different load information and processing policy, user's priority of resource allocation also changes accordingly, and further influence the resource allocation of base station dispatcher to the user, with of the use of restricted cell edge customer to running time-frequency resource, comprise and determine the available running time-frequency resource and the running time-frequency resource of limit transmit power, make Cell Edge User preferentially utilize neighbor cell not have the resource of using, realize the purpose of Inter-Cell Interference Coordination.

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, 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.

As shown in Figure 1, be a kind of resource allocation methods flow chart in the embodiment of the invention one, be applied to comprise in the system of base station dispatcher and at least two base station telegons, described at least two base station telegons are respectively applied for the cell load information that generates respective cell, said method comprising the steps of:

Step 101, the base station telegon that the base station telegon of this sub-district correspondence is corresponding with neighbor cell are carried out the mutual of cell load information.

The embodiment of the invention is applied to comprise that base station dispatcher and at least two are used for generating the system of the base station telegon of cell load information.In order to realize the interference coordination of minizone, the base station telegon of this sub-district correspondence can be periodically or Event triggered ground in the minizone mutual cell load information.The base station telegon that the base station telegon of this sub-district correspondence is corresponding with neighbor cell carries out can comprising alternately of cell load information: receive the cell load information from the neighbor cell of the corresponding base station telegon of neighbor cell; And/or send the cell load information of this sub-district to the base station of neighbor cell correspondence telegon.

In the LTE system, cell load information comprises uplink load information and/or down load information, and wherein, uplink load information comprises HII (High Interference Indicator, the high interference indication) parameter and/or OI (Overload Indicator, overload indication) parameter.The HII parameter is used for indicating this sub-district to distribute to the RU of this Cell Edge User (Resource Unit, Resource Unit) in setting-up time to the base station of neighbor cell correspondence telegon.After the base station telegon of neighbor cell correspondence receives the message that comprises the HII parameter, when the edge customer of scheduling self, avoid using this HII parameter indication to distribute to the RU of edge customer as far as possible.RU is the smallest allocation unit of ascending resource, and size is 12 subcarriers, i.e. 180kHz.

The OI parameter is used for the level of interference to the base station of neighbor cell correspondence telegon indication RU, after the base station telegon of neighbor cell correspondence receives the message that comprises the OI parameter, can disturb in this OI parameter indication and reduce the power transmission on the excessive RU, perhaps not use the excessive RU of this interference.

Down load information comprises RNTP (Relative Narrowband TX Power indicator, relevant narrow emission power indication) parameter, this RNTP parameter is used for indicating this sub-district down transmitting power grade on the PRB (Physical Resource Block, Physical Resource Block) in setting-up time to the base station of neighbor cell correspondence telegon.After the base station telegon of neighbor cell correspondence receives the message that comprises the RNTP parameter, can when the scheduling edge customer, avoid using this RNTP parameter to be designated as the PRB of high power level.PRB is the smallest allocation unit of downlink resource, and size is 12 subcarriers, i.e. 180kHz.

Step 102, the base station telegon of this sub-district correspondence is determined the priority of resource allocation of this community user according to mutual cell load information.

The cell load information of the cell load information of the neighbor cell that the base station telegon basis of this sub-district correspondence receives and/or this sub-district of transmission, can determine the priority of resource allocation of this Cell Edge User and central user by the calculating of priority of resource allocation weights.Priority of resource allocation comprises whether resource is available at each user, and resource allocation is at each user's priority orders.

Priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority, up link in the corresponding LTE system can use HII parameter in the uplink load information that receives and/or send and/or OI calculation of parameter user's ascending resource to distribute the weights of priority.

The embodiment of the invention can be distributed the size of the weights of priority according to the user's who calculates ascending resource, determines whether each RU of this cell allocation is available to the user; Also can determine whether each RU is available to the user according to the level of interference of each RU in the OI parameter that sends to the base station of neighbor cell correspondence telegon.

Down link in the correspondence LTE system can use the downlink resource of the RNTP calculation of parameter user in the down load information that receives and/or send to distribute the weights of priority.

The embodiment of the invention can be distributed the size of the weights of priority according to the user's who calculates downlink resource, determines whether each PRB of this cell allocation is available to the user.

Step 103, the base station telegon of this sub-district correspondence is exported to base station dispatcher with the priority of resource allocation of this community user.

After the base station telegon of this sub-district correspondence is determined user's priority of resource allocation, can send this priority of resource allocation to base station dispatcher.

Step 104, base station dispatcher carries out resource allocation according to the priority of resource allocation of this community user.

Base station dispatcher can carry out resource allocation according to the user's who receives priority of resource allocation, also can be in conjunction with user's priority of resource allocation and CQI (Channel Quality Indicator, channel quality indication) etc. relevant information is carried out resource allocation, to the UE of each user's correspondence Resources allocation.

The technical scheme of the embodiment of the invention has the following advantages, because determine user's priority of resource allocation according to cell load information, and use user's priority of resource allocation to carry out resource allocation, realized the interference coordination of minizone, improve the performance and the experience of Cell Edge User, reached the effect that guarantees edges cover speed.

As shown in Figure 2, a kind of resource allocation methods flow chart in the embodiment of the invention two may further comprise the steps:

Step 201, the base station telegon of this sub-district correspondence receives the uplink load information from the neighbor cell of the base station telegon of neighbor cell correspondence.

The corresponding different sub-district of telegon, different base stations, can be between each base station telegon in the minizone periodically or the mutual cell load information in Event triggered ground.Up link in the correspondence LTE system, the base station telegon of this sub-district correspondence can receive the uplink load information from the neighbor cell of the base station telegon of neighbor cell correspondence, and this uplink load information comprises HII parameter and/or OI parameter.Wherein, the HII parameter, is used to indicate whether this RU is distributed to this Cell Edge User as distributing indication bit at the information that each RU is provided with a bit.For example, distributing the indication bit value is 1 o'clock, and expression is distributed to this Cell Edge User with the RU of this bit correspondence; Distributing the indication bit value is 0 o'clock, and expression is not distributed to this Cell Edge User with the RU of this bit correspondence.

The OI parameter is provided with the information of two bits at each RU, as disturbing indication bit, the level of interference that is used to indicate this RU.For example, disturbing the indication bit value is 10 o'clock, and the level of interference of representing the RU of this bit correspondence is the high interference grade; Disturbing the indication bit value is 01 o'clock, and the level of interference of representing the RU of this bit correspondence is middle level of interference; Disturbing the indication bit value is 00 o'clock, represents that the level of interference of the RU of this bit correspondence is low level of interference.

Step 202, the base station telegon of this sub-district correspondence send the uplink load information of this sub-district to the base station of neighbor cell correspondence telegon.

The uplink load information of this sub-district also comprises HII parameter and/or OI parameter, and the effect of this HII parameter and OI parameter is similar with the effect of HII parameter in the uplink load information of neighbor cell and OI parameter, repeats no more herein.

Need to prove there is not the branch of sequencing between this step and the step 201, promptly this step can be before step 201, carry out afterwards or simultaneously.

Step 203, the base station telegon of this sub-district correspondence determines that according to the uplink load information of the neighbor cell that receives with to the uplink load information of this sub-district that the base station of neighbor cell correspondence telegon sends the ascending resource of this community user distributes priority.

According to the uplink load information of the neighbor cell that receives with to the uplink load information of this sub-district that the base station of neighbor cell correspondence coordination area sends, the base station telegon of this sub-district correspondence can determine that the ascending resource of this Cell Edge User and central user distributes priority by the calculating of priority of resource allocation weights.Ascending resource distributes priority to comprise whether ascending resource is available at each user, and the ascending resource dispense needles is to each user's priority orders.

The ascending resource of this Cell Edge User distributes the computing formula of the weights of priority to be:

$p_{\mathrm{scheduling}}=a_1*n_{\mathrm{HII}}+a_2*\underset{k=0}{\overset{2}{\mathrm{\Σ}}}(k*n_k)+a_3*{\mathrm{HII}}_s+a_4*k_s$

The ascending resource of this Cell Center User distributes the computing formula of the weights of priority to be:

$p_{\mathrm{scheduling}}^{\′}=a_1^{\′}*n_{\mathrm{HII}}+a_2^{\′}*\underset{k=0}{\overset{2}{\mathrm{\Σ}}}(k*n_k)+a_3^{\′}*{\mathrm{HII}}_s+a_4^{\′}*k_s$

Above-mentioned ascending resource distributes the computing formula of the weights of priority, is directed to each RU of this cell allocation.

Wherein, p _SchedulingThe weights that distribute priority for the ascending resource of this Cell Edge User; P ' _SchedulingThe weights that distribute priority for the ascending resource of this Cell Center User.

n _HIINumber for the neighbor cell of the edge customer of this RU being distributed to self by HII parameter indication, be in the message that comprises the HII parameter from the base station telegon of neighbor cell correspondence that receives of the base station telegon of this sub-district correspondence, the distribution indication bit value of this RU correspondence is the number of 1 HII parameter.For example, the base station telegon of this sub-district correspondence receives the message that comprises the HII parameter from the base station telegon of 6 neighbor cell correspondences altogether, wherein, and in the message that comprises the HII parameter that the base station telegon of 4 neighbor cell correspondences sends, the distribution indication bit value of this RU correspondence is 1, then n _HIIBe 4.

The value of k is 0,1 or 2, in the message that comprises the OI parameter that the base station telegon of corresponding respectively this sub-district correspondence receives from the base station telegon of neighbor cell correspondence, the interference indication bit value of this RU correspondence is 00,01 or 10, and promptly the level of interference of this RU is the situation of low level of interference, middle level of interference or high interference grade; n _kFor indicate the level of interference of this RU and the number of the corresponding neighbor cell of k by the OI parameter, be in the message that comprises the OI parameter that receives of the base station telegon of this sub-district correspondence from the base station telegon of neighbor cell correspondence, the number of the interference indication bit value of this RU correspondence and the corresponding OI parameter of k.For example, the base station telegon of this sub-district correspondence receives the message that comprises the OI parameter from the base station telegon of 4 neighbor cell correspondences altogether, wherein, in the message that comprises the OI parameter that the base station telegon of 2 neighbor cell correspondences sends, the interference indication bit value of this RU correspondence is 00, then the value of k is 0 o'clock, corresponding n _kBe 2.

HII _sValue be 1 or 0, the base station telegon of corresponding respectively this sub-district correspondence in the message that comprises the HII parameter that the base station of neighbor cell correspondence telegon sends, the distribution indication bit value of this RU correspondence.If the base station telegon of this sub-district correspondence is in the message that comprises the HII parameter that the base station of neighbor cell correspondence telegon sends, the distribution indication bit value of this RU correspondence is 1, then HII _sValue be 1; If the base station telegon of this sub-district correspondence is in the message that comprises the HII parameter that the base station of neighbor cell correspondence telegon sends, the distribution indication bit value of this RU correspondence is 0, then HII _sValue be 0.

k _sValue be 0,1 or 2, the base station telegon of corresponding this sub-district correspondence is in the message that comprises the OI parameter that the base station of neighbor cell correspondence telegon sends respectively, the interference indication bit value of this RU correspondence is 00,01 or 10, and promptly the level of interference of this RU is the situation of low level of interference, middle level of interference or high interference grade.

a ₁, a ₂, a ₃, a ₄, a ' ₁, a ' ₂, a ' ₃And a ' ₄Value be arbitrary value, a ₁, a ₂, a ₃, a ₄, a ' ₁, a ' ₂, a ' ₃And a ' ₄Different values to the reply uplink load information the different disposal strategy.By the processing policy of configuration, can dispose a to uplink load information ₁, a ₂, a ₃, a ₄, a ' ₁, a ' ₂, a ' ₃And a ' ₄Value.a ₁, a ₂, a ₃, a ₄, a ' ₁, a ' ₂, a ' ₃And a ' ₄There is one group of fixing value in corresponding every kind of processing policy, and the value of every kind of processing policy correspondence can be determined by emulation.

In different disposal strategy to uplink load information,

HII _sAnd k _sWeight also inequality.Pass through a ₁, a ₂, a ₃, a ₄, a ' ₁, a ' ₂, a ' ₃And a ' ₄Value, can be when the ascending resource that calculates each user distributes the weights of priority, distinguish from the HII parameter base station telegon of neighbor cell correspondence and that send to the base station of neighbor cell correspondence telegon and the importance of OI parameter.For example, work as a ₁, a ₂, a ' ₁And a ' ₂Value when being zero, then when the ascending resource that calculates each user distributes the weights of priority, do not consider HII parameter and OI parameter from the base station telegon of neighbor cell correspondence; Work as a ₃, a ₄, a ' ₃And a ' ₄Value when being zero, then when the ascending resource that calculates each user distributes the weights of priority, do not consider the HII parameter and the OI parameter that send to the base station of neighbor cell correspondence telegon.

The size that the user's that the embodiment of the invention can obtain according to aforementioned calculation ascending resource distributes the weights of priority determines whether each RU of this cell allocation is available to the user; Also can determine whether each RU is available to the user according to the level of interference of each RU in the OI parameter that sends to the base station of neighbor cell correspondence telegon.For example, when the base station of this sub-district correspondence telegon in the OI parameter that the base station of neighbor cell correspondence telegon sends, the interference indication bit value of the level of interference correspondence of RU is 10, and when promptly the level of interference of this RU was the high interference grade, it is unavailable to the user that this RU can be set.

Step 204, the base station telegon of this sub-district correspondence distributes priority with the ascending resource of this community user, sends to base station dispatcher.

After determining each user's of this sub-district ascending resource distribution priority, the base station telegon of this sub-district correspondence can be exported the ascending resource distribution priority of this Cell Edge User and central user to base station dispatcher.

Step 205, base station dispatcher distributes priority according to user's ascending resource, distributes ascending resource to the user.

After the user's that base station dispatcher reception base station telegon sends ascending resource distributes priority, can distribute priority to carry out the distribution of ascending resource according to each user's ascending resource, also can distribute relevant informations such as priority and CQI to carry out the distribution of ascending resource in conjunction with user's ascending resource, distribute ascending resource to the UE of each user's correspondence.

Need to prove that the inventive method can be adjusted each sequence of steps according to actual needs.

The technical scheme of the embodiment of the invention has the following advantages, because determine that according to the uplink load information of this sub-district and the uplink load information of neighbor cell user's ascending resource distributes priority, and the ascending resource that uses the user distributes priority to carry out the ascending resource distribution, realized the uplink interference coordination of minizone, improve the performance and the experience of Cell Edge User, reached the effect that guarantees edges cover speed.

As shown in Figure 3, a kind of resource allocation methods flow chart in the embodiment of the invention three may further comprise the steps:

Step 301, the base station telegon of this sub-district correspondence receives the down load information from the neighbor cell of the base station telegon of neighbor cell correspondence.

Down link in the correspondence LTE system, the base station telegon of this sub-district correspondence can receive the down load information from the neighbor cell of the base station telegon of neighbor cell correspondence.Down load information comprises the RNTP parameter, and this RNTP parameter is provided with the information of a bit at each PRB, as power indication bit RNTP (n _PRB), be used to indicate the down transmitting power grade of this sub-district on this PRB.

For example, RNTP (n _PRB) value be 1 o'clock, represent that this sub-district is at this RNTP (n _PRB) down transmitting power grade on the corresponding PRB is high power level, promptly this sub-district is at this RNTP (n _PRB) down transmitting power on the corresponding PRB Threshold value power RNTP greater than RNTP _ThresholdRNTP (n _PRB) value be 0 o'clock, represent that this sub-district is at this RNTP (n _PRB) down transmitting power grade on the corresponding PRB is low power level, promptly this sub-district is at this RNTP (n _PRB) down transmitting power on the corresponding PRB Smaller or equal to RNTP _ThresholdAfter the base station telegon of neighbor cell correspondence receives the message that comprises the RNTP parameter, can when the scheduling edge customer, avoid using this RNTP parameter to be designated as the PRB of high power level.

RNTP (n _PRB) value determine by following formula:

$\mathrm{RNTP}\left(n_{\mathrm{PRB}}\right)=\left\{\begin{array}{cc}0,& \frac{E_A\left(n_{\mathrm{PRB}}\right)}{E_{\max \_\mathrm{nom}}^{\left(p\right)}}\≤{\mathrm{RNTP}}_{\mathrm{threshold}}\\ 1,& \frac{E_A\left(n_{\mathrm{PRB}}\right)}{E_{\max \_\mathrm{nom}}^{\left(p\right)}}>{\mathrm{RNTP}}_{\mathrm{threshold}}\end{array}\right.$

Wherein, E _A(n _PRB) be in the setting-up time, on antenna port P, the maximum EPRE (Energy Per Resource Element, every resource element energy) of type A PDSCH (Physical Downlink Shared Channel, physical down link sharing channel).Type A PDSCH only comprises PDSCH RE (Resource Element, resource element), does not comprise other RE such as pilot tone.

$n_{\mathrm{PRB}}=0,...,N_{\mathrm{RB}}^{\mathrm{DL}}-1,$ Numbering for PRB.

RNTP _Threshold∈ { ∞ ,-11 ,-10 ,-9 ,-8 ,-7 ,-6,-5 ,-4 ,-3 ,-2 ,-1,0, + 1 ,+2 ,+3}[dB], can determine, and send to the base station telegon of neighbor cell correspondence that different RNTP can be set in different sub-districts according to default algorithm by the base station telegon of this sub-district correspondence _Threshold

Determine by following formula:

$E_{\max ,\mathrm{nom}}^{\left(p\right)}=\frac{P_{\max }^{\left(p\right)}\·\frac{1}{\mathrm{\Δf}}}{N_{\mathrm{RB}}^{\mathrm{DL}}{N}_{\mathrm{sc}}^{\mathrm{RB}}}$

Wherein,

Be the peak power output of base station on each antenna port P; Δ f is a subcarrier bandwidth;

Be descending PRB number;

Sub-carrier number for each PRB.

Step 302, the base station telegon of this sub-district correspondence send the down load information of this sub-district to the base station of neighbor cell correspondence telegon.

The down load information of this sub-district also comprises the RNTP parameter, and the effect of this RNTP parameter is similar with the effect of RNTP parameter in the down load information of neighbor cell, repeats no more herein.

Need to prove there is not the branch of sequencing between this step and the step 301, promptly this step can be before step 301, carry out afterwards or simultaneously.

Step 303, the base station telegon of this sub-district correspondence determines that according to the down load information of the neighbor cell that receives with to the down load information of this sub-district that the base station of neighbor cell correspondence telegon sends the downlink resource of this community user distributes priority.

According to the down load information of the neighbor cell that receives with to the down load information of this sub-district that the base station of neighbor cell correspondence coordination area sends, the base station telegon of this sub-district correspondence can distribute the calculating of the weights of priority by downlink resource, determines that the downlink resource of this Cell Edge User and central user distributes priority.Downlink resource distributes priority to comprise whether downlink resource is available at each user, and the downlink resource dispense needles is to each user's priority orders.

The downlink resource of this Cell Edge User distributes the computing formula of the weights of priority to be:

q _scheduling＝b ₁*n _RNTP+b ₂*RNTP _s

The downlink resource of this Cell Center User distributes the computing formula of the weights of priority to be:

q′ _scheduling＝b′ ₁*n _RNTP+b′ ₂*RNTP _s

Above-mentioned downlink resource distributes the computing formula of the weights of priority, is directed to each PRB of this cell allocation.

Wherein, q _SchedulingThe weights that distribute priority for the downlink resource of this Cell Edge User; Q ' _SchedulingThe weights that distribute priority for the downlink resource of this Cell Center User.

n _RNTPFor indicate the down transmitting power grade on this PRB by the RNTP parameter is the number of the neighbor cell of high power level, be in the message that comprises the RNTP parameter that receives of the base station telegon of this sub-district correspondence from the base station telegon of neighbor cell correspondence, the RNTP (n of this PRB correspondence _PRB) be the number of 1 RNTP parameter.For example, the base station telegon of this sub-district correspondence receives the message that comprises the RNTP parameter from the base station telegon of 3 neighbor cell correspondences altogether, wherein RNTP (the n of this PRB correspondence in the RNTP parameter in the message of the base station telegon transmission of 2 neighbor cell correspondences _PRB) be 1, n then _RNTPBe 2.

RNTP _sValue be 1 or 0, the RNTP (n of the base station telegon of corresponding this sub-district correspondence this PRB correspondence in the RNTP parameter that the base station of neighbor cell correspondence telegon sends respectively _PRB) value.If the base station telegon of this sub-district correspondence in the RNTP parameter that the base station of neighbor cell correspondence telegon sends, the RNTP (n of this PRB correspondence _PRB) value be 1, RNTP then _sValue be 1; If the base station telegon of this sub-district correspondence in the RNTP parameter that the base station of neighbor cell correspondence telegon sends, the RNTP (n of this PRB correspondence _PRB) value be 0, RNTP then _sValue be 0.

b ₁, b ₂, b ' ₁And b ' ₂Value be arbitrary value, b ₁, b ₂, b ' ₁And b ' ₂Different values to the different disposal strategy of reply down load information, can dispose b by configuration to down load information processing strategy ₁, b ₂, b ' ₁And b ' ₂Value.b ₁, b ₂, b ' ₁And b ' ₂There is one group of fixing value in corresponding every kind of processing policy, and the value of every kind of processing policy correspondence can be determined by emulation.

In different disposal strategy to down load information, n _RNTPAnd RNTP _sWeight also inequality.Pass through b ₁, b ₂, b ' ₁And b ' ₂Value, can be when the downlink resource that calculates each user distributes the weights of priority, distinguish importance from the RNTP parameter base station telegon of neighbor cell correspondence and that send to the base station of neighbor cell correspondence telegon.For example, work as b ₁And b ' ₁Value when being zero, then when the downlink resource that calculates each user distributes the weights of priority, do not consider RNTP parameter from the base station telegon of neighbor cell correspondence; Work as b ₂And b ' ₂Value when being zero, then when the downlink resource that calculates each user distributes the weights of priority, do not consider the RNTP parameter that sends to the base station of neighbor cell correspondence telegon.

The size that the user's that the embodiment of the invention can obtain according to aforementioned calculation downlink resource distributes the weights of priority determines whether each PRB of this cell allocation is available to the user.

Step 304, the base station telegon of this sub-district correspondence distributes priority with the downlink resource of this community user, sends to base station dispatcher.

After determining each user's of this sub-district downlink resource distribution priority, the base station telegon of this sub-district correspondence can be exported the downlink resource distribution priority of this Cell Edge User and central user to base station dispatcher.

Step 305, base station dispatcher distributes priority according to user's downlink resource, to user's allocation of downlink resource.

After the user's that base station dispatcher reception base station telegon sends downlink resource distributes priority, downlink resource according to each user distributes priority to carry out the distribution of downlink resource, also can distribute relevant informations such as priority and CQI to carry out the distribution of downlink resource in conjunction with user's downlink resource, to the UE of each user's correspondence allocation of downlink resource.

Need to prove that the inventive method can be adjusted each sequence of steps according to actual needs.

The technical scheme of the embodiment of the invention has the following advantages, because determine that according to the down load information of this sub-district and the down load information of neighbor cell user's downlink resource distributes priority, and the downlink resource that uses the user distributes priority to carry out the downlink resource distribution, realized the downlink interference collaboration of minizone, improve the performance and the experience of Cell Edge User, reached the effect that guarantees edges cover speed.

As shown in Figure 4, be a kind of base station telegon structural representation in the embodiment of the invention four, be applied to comprise in the system of base station dispatcher and at least two base station telegons that these at least two base station telegons are respectively applied for the cell load information that generates respective cell, this base station telegon comprises:

Interactive module 410 is used for the base station telegon corresponding with neighbor cell and carries out the mutual of cell load information.

In order to realize the interference coordination of minizone, interactive module 410 can be periodically or Event triggered ground in the minizone mutual cell load information.The interactive module 410 base station telegon corresponding with neighbor cell carries out can comprising alternately of cell load information: the cell load information of the neighbor cell that the base station telegon that interactive module 410 reception of neighboring cell are corresponding sends; And/or interactive module 410 sends the cell load information of this sub-district to the base station of neighbor cell correspondence telegon.

In the LTE system, cell load information comprises uplink load information and/or down load information, wherein, uplink load information comprises HII parameter and/or OI parameter, and the HII parameter is used for indicating this sub-district to distribute to the RU of this Cell Edge User in setting-up time to the base station of neighbor cell correspondence telegon.After the base station telegon of neighbor cell correspondence receives the message that comprises the HII parameter, when the edge customer of scheduling self, avoid using this HII parameter indication to distribute to the RU of edge customer as far as possible.

The OI parameter is used for the level of interference to the base station of neighbor cell correspondence telegon indication RU, after the base station telegon of neighbor cell correspondence receives the message that comprises the OI parameter, can disturb in this OI parameter indication and reduce the power transmission on the excessive RU, perhaps not use the excessive RU of this interference.

Down load information comprises the RNTP parameter, and this RNTP parameter is used for indicating this sub-district down transmitting power grade on the PRB in setting-up time to the base station of neighbor cell correspondence telegon.After the base station telegon of neighbor cell correspondence receives the message that comprises the RNTP parameter, can when the scheduling edge customer, avoid using this RNTP parameter to be designated as the PRB of high power level.

Above-mentioned interactive module 410 is to be responsible for the mutual part that the base station telegon corresponding with neighbor cell carries out cell load information in the above base station telegon, can be software, hardware or both combinations.

Acquisition module 420 electrically connects with interactive module 410, is used for determining the priority of resource allocation of this community user according to the mutual cell load information of interactive module 410.

According to the cell load information of this sub-district of the cell load information of the neighbor cell that receives and/or transmission, acquisition module 420 can be determined the priority of resource allocation of this Cell Edge User and central user by the calculating of priority of resource allocation weights.Priority of resource allocation comprises whether resource is available at each user, and resource allocation is at each user's priority orders.

Priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority, up link in the corresponding LTE system, acquisition module 420 can use HII parameter in the uplink load information that receives and/or send and/or OI calculation of parameter user's ascending resource to distribute the priority weights.

Acquisition module 420 in the embodiment of the invention can distribute the size of the weights of priority according to the user's who calculates ascending resource, determines whether each RU of this cell allocation is available to the user; Also can determine whether each RU is available to the user according to the level of interference of each RU in the OI parameter that sends to the base station of neighbor cell correspondence telegon.

Down link in the correspondence LTE system, acquisition module 420 can also use the downlink resource of the RNTP calculation of parameter user in the down load information that receives and/or send to distribute the priority weights.Acquisition module 420 in the embodiment of the invention can distribute the size of the weights of priority according to the user's who calculates downlink resource, determines whether each PRB of this cell allocation is available to the user.

Above-mentioned acquisition module 420 is to be responsible in the above base station telegon determining the part of the priority of resource allocation of this community user according to the mutual cell load information of interactive module 410, can be software, hardware or both combinations.

Output module 430 electrically connects with acquisition module 420, and the priority of resource allocation that is used for this community user that acquisition module 420 is determined is exported to base station dispatcher.

Output module 430 can send the user's that acquisition module 420 determines priority of resource allocation to base station dispatcher, base station dispatcher can carry out resource allocation according to the user's who receives priority of resource allocation, also can carry out resource allocation, to the UE of each user's correspondence Resources allocation in conjunction with relevant informations such as user's priority of resource allocation and CQI.

Above-mentioned output module 430 is parts that the priority of resource allocation of being responsible for this community user that acquisition module 420 is determined in the above base station telegon is exported to base station dispatcher, can be software, hardware or both combinations.

Above-mentioned interactive module 410 comprises:

Receive submodule 411, be used for the cell load information of the neighbor cell that the base station telegon of reception of neighboring cell correspondence sends; And/or

Send submodule 412, be used for sending the cell load information of this sub-district to the base station of neighbor cell correspondence telegon.

Above-mentioned reception submodule 411 is parts of being responsible for the cell load information of the neighbor cell that the base station telegon of reception of neighboring cell correspondence sends in the above base station telegon, can be software, hardware or both combinations.

Above-mentioned transmission submodule 412 is parts of being responsible for sending to the base station of neighbor cell correspondence telegon the cell load information of this sub-district in the above base station telegon, can be software, hardware or both combinations.

Above-mentioned transmission submodule 412 also is used for sending the message that comprises the HII parameter to the base station of neighbor cell correspondence telegon, and this HII parameter is used for indicating this sub-district to distribute to the RU of this Cell Edge User in setting-up time to the base station of neighbor cell correspondence telegon; And/or

Send the message that comprises the OI parameter to the base station of neighbor cell correspondence telegon, this OI parameter is used for the level of interference to the base station of neighbor cell correspondence telegon indication RU.

Above-mentioned transmission submodule 412 also is used for sending the message that comprises the RNTP parameter to the base station of neighbor cell correspondence telegon.

Above-mentioned acquisition module 420 comprises:

Up acquisition module 421 is used for according to uplink load information, determines that the ascending resource of this community user distributes priority; And/or

Descending acquisition module 422 is used for according to down load information, determines that the downlink resource of this community user distributes priority.

Particularly, up acquisition module 421 can according to interactive module 410 receive from the uplink load information of the base station telegon of neighbor cell correspondence and/or the uplink load information that sends to the base station of neighbor cell correspondence telegon, the ascending resource that calculates this community user distributes the priority weights, thereby the ascending resource of determining this community user distributes priority.

Descending acquisition module 422 can according to interactive module 410 receive from the down load information of the base station telegon of neighbor cell correspondence and/or the down load information that sends to the base station of neighbor cell correspondence telegon, the downlink resource that calculates this community user distributes the priority weights, thereby the downlink resource of determining this community user distributes priority.

Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.

The technical scheme of the embodiment of the invention has the following advantages, because determine user's priority of resource allocation according to the uplink load information of the uplink load information of this sub-district and neighbor cell, and use user's priority of resource allocation to carry out resource allocation, realized the interference coordination of minizone, improve the performance and the experience of Cell Edge User, reached the effect that guarantees edges cover speed.

As shown in Figure 5, be a kind of resource allocation system structural representation in the embodiment of the invention five, the base station telegon 510 that comprises base station dispatcher 520 and at least two cell load informations, these at least two base station telegons 510 are respectively applied for the cell load information that generates respective cell.

Base station telegon 510, be used for the base station telegon corresponding and carry out the mutual of cell load information with neighbor cell, according to mutual cell load information, determine the priority of resource allocation of this community user, the priority of resource allocation of this community user is exported to base station dispatcher 520.

The corresponding different sub-district of telegon, different base stations, can be between each base station telegon in the minizone periodically or the mutual cell load information in Event triggered ground.The base station telegon that base station telegon 510 is corresponding with neighbor cell carries out can comprising alternately of cell load information: the cell load information of the neighbor cell that the base station telegon that telegon 510 reception of neighboring cell in base station are corresponding sends; And/or base station telegon 510 sends the cell load information of this sub-district to the base station of neighbor cell correspondence telegon.

In the LTE system, cell load information comprises uplink load information and/or down load information, and wherein, uplink load information comprises HII parameter and/or OI parameter.The HII parameter is used for indicating this sub-district to distribute to the RU of this Cell Edge User in setting-up time to the base station of neighbor cell correspondence telegon, after the base station telegon of neighbor cell correspondence receives the message that comprises the HII parameter, when the edge customer of scheduling self, avoid using this HII parameter indication to distribute to the RU of edge customer as far as possible.

The OI parameter is used for the level of interference to the base station of neighbor cell correspondence telegon indication RU, after the base station telegon of neighbor cell correspondence receives the message that comprises the OI parameter, can disturb in this OI parameter indication and reduce the power transmission on the excessive RU, perhaps not use the excessive RU of this interference.

Down load information comprises the RNTP parameter, and this RNTP parameter is used for indicating this sub-district down transmitting power grade on the PRB in setting-up time to the base station of neighbor cell correspondence telegon.After the base station telegon of neighbor cell correspondence receives the message that comprises the RNTP parameter, can when the scheduling edge customer, avoid using this RNTP parameter to be designated as the PRB of high power level.

The cell load information of the cell load information of the neighbor cell that telegon 510 bases in base station receive and/or this sub-district of transmission can be determined the priority of resource allocation of this Cell Edge User and central user by the calculating of priority of resource allocation weights.Priority of resource allocation comprises whether resource is available at each user, and resource allocation is at each user's priority orders.

Priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority, up link in the corresponding LTE system, base station telegon 510 can use HII parameter in the cell load information that receives and/or send and/or OI calculation of parameter user's ascending resource to distribute the weights of priority.

Base station telegon 510 in the embodiment of the invention can distribute the size of the weights of priority according to the user's who calculates ascending resource, determines whether each RU of this cell allocation is available to the user; Also can determine whether each RU is available to the user according to the level of interference of each RU in the OI parameter that sends to the base station of neighbor cell correspondence telegon.

Down link in the correspondence LTE system, base station telegon 510 can also use the downlink resource of the RNTP calculation of parameter user in the down load information that receives and/or send to distribute the priority weights.Base station telegon 510 in the embodiment of the invention can distribute the size of the weights of priority according to the user's who calculates downlink resource, determines whether each PRB of this cell allocation is available to the user.

Base station dispatcher 520 is used for the priority of resource allocation according to this community user of base station telegon 510 outputs, carries out resource allocation.

After base station telegon 510 is determined user's priority of resource allocation, can send this priority of resource allocation to base station dispatcher 520.Base station dispatcher 520 can carry out resource allocation according to the user's who receives priority of resource allocation, also can carry out resource allocation in conjunction with relevant informations such as user's priority of resource allocation and CQI, to the UE of each user's correspondence Resources allocation.

The technical scheme of the embodiment of the invention has the following advantages, because determine user's priority of resource allocation according to cell load information, and use user's priority of resource allocation to carry out resource allocation, realized the interference coordination of minizone, improve the performance and the experience of edge customer, reached the effect that guarantees edges cover speed.

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.

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 embodiment 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 (18)

1. a resource allocation methods is applied to comprise in the system of base station dispatcher and at least two base station telegons, and described at least two base station telegons are respectively applied for the cell load information that generates respective cell, it is characterized in that, said method comprising the steps of:

The base station telegon that the base station telegon of this sub-district correspondence is corresponding with neighbor cell carries out the mutual of cell load information;

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of this community user according to described mutual cell load information;

The base station telegon of described this sub-district correspondence is exported to described base station dispatcher with the priority of resource allocation of described community user;

Described base station dispatcher carries out resource allocation according to the priority of resource allocation of described community user.

2. the method for claim 1 is characterized in that, the base station telegon that the base station telegon of described this sub-district correspondence is corresponding with described neighbor cell carries out comprising alternately of cell load information:

The base station telegon of described this sub-district correspondence receives the cell load information from the described neighbor cell of the base station telegon of described neighbor cell correspondence; And/or

The base station telegon of described this sub-district correspondence sends the cell load information of described this sub-district to the base station of described neighbor cell correspondence telegon.

3. method as claimed in claim 1 or 2 is characterized in that, described cell load information comprises uplink load information and/or down load information, and described priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority,

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of this community user according to described mutual cell load information, comprising:

The base station telegon of described this sub-district correspondence determines that according to described uplink load information the ascending resource of described community user distributes priority; And/or

The base station telegon of described this sub-district correspondence determines that according to described down load information the downlink resource of described community user distributes priority.

4. method as claimed in claim 3 is characterized in that, described community user comprises this Cell Edge User, and described uplink load information comprises high interference indication HII parameter and/or overload indication OI parameter,

The base station telegon of described this sub-district correspondence comprises to the cell load information of described this sub-district of the base station of described neighbor cell correspondence telegon transmission:

The base station telegon of described this sub-district correspondence sends the message that comprises described HII parameter to the base station of described neighbor cell correspondence telegon, and described HII parameter is used for distributing in setting-up time to described this sub-district of the base station of described neighbor cell correspondence telegon indication the Resource Unit RU of described Cell Edge User; And/or

The base station telegon of described this sub-district correspondence sends the message that comprises described OI parameter to the base station of described neighbor cell correspondence telegon, and described OI parameter is used for the level of interference to the base station of described neighbor cell correspondence telegon indication RU.

5. method as claimed in claim 4 is characterized in that,

Described HII parameter is provided with the distribution indication bit at each RU, and described distribution indication bit is used to indicate whether described RU is distributed to described Cell Edge User; And/or

Described OI parameter is provided with the interference indication bit at each RU, and described interference indication bit is used to indicate the level of interference of described RU.

6. method as claimed in claim 5 is characterized in that, the base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, comprising:

RU at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the uplink load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the uplink load information of the described described neighbor cell that receives the ascending resource of described Cell Edge User distributes priority;

The ascending resource of described Cell Edge User distributes the weights of priority by formula

$p_{\mathrm{scheduling}}=a_1*n_{\mathrm{HII}}+a_2*\underset{k=0}{\overset{2}{\mathrm{\Σ}}}(k*n_k)+a_3*{\mathrm{HII}}_s+a_4*k_s$ Obtain,

Wherein, described p _SchedulingThe weights that distribute priority for the ascending resource of described Cell Edge User;

Described n _HIINumber for the neighbor cell of the edge customer of described RU being distributed to self by the indication of described HII parameter;

The value of described k is 0,1 or 2, in the message that comprises the OI parameter from the base station telegon of described neighbor cell correspondence that the base station telegon of corresponding respectively described this sub-district correspondence receives, the interference indication bit value of described RU correspondence is 00,01 or 10 situation;

Described n _kFor indicate the level of interference of described RU and the number of the corresponding neighbor cell of described k by described OI parameter;

Described HII _sValue be 1 or 0, the base station telegon of corresponding respectively this sub-district correspondence in the message that comprises the HII parameter that the base station of described neighbor cell correspondence telegon sends, the distribution indication bit value of described RU correspondence;

Described k _sValue be 0,1 or 2, the base station telegon of corresponding respectively this sub-district correspondence is in the message that comprises the OI parameter that the base station of described neighbor cell correspondence telegon sends, the interference indication bit value of described RU correspondence is 00,01 or 10 situation;

Described a ₁, described a ₂, described a ₃With described a ₄Value be arbitrary value, described a ₁, described a ₂, described a ₃With described a ₄Different values to tackling the different disposal strategy of described uplink load information.

7. method as claimed in claim 5 is characterized in that, described community user also comprises this Cell Center User,

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, also comprises:

RU at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the uplink load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the uplink load information of the described described neighbor cell that receives the ascending resource of described Cell Center User distributes priority;

The ascending resource of described Cell Center User distributes the weights of priority by formula

$p_{\mathrm{scheduling}}^{\′}=a_1^{\′}*n_{\mathrm{HII}}+a_2^{\′}*\underset{k=0}{\overset{2}{\mathrm{\Σ}}}(k*n_k)+a_3^{\′}*{\mathrm{HII}}_s+a_4^{\′}*k_s$ Obtain,

Wherein, described p ' _SchedulingThe weights that distribute priority for the ascending resource of described Cell Center User;

Described n _HIINumber for the neighbor cell of the edge customer of described RU being distributed to self by the indication of described HII parameter;

The value of described k is 0,1 or 2, in the message that comprises the OI parameter from the base station telegon of described neighbor cell correspondence that the base station telegon of corresponding respectively described this sub-district correspondence receives, the interference indication bit value of described RU correspondence is 00,01 or 10 situation;

Described n _kFor indicate the level of interference of described RU and the number of the corresponding neighbor cell of described k by described OI parameter;

Described HII _sValue be 1 or 0, the base station telegon of corresponding respectively described this sub-district correspondence in the message that comprises the HII parameter that the base station of described neighbor cell correspondence telegon sends, the distribution indication bit value of described RU correspondence;

Described k _sValue be 0,1 or 2, the base station telegon of corresponding respectively described this sub-district correspondence is in the message that comprises the OI parameter that the base station of described neighbor cell correspondence telegon sends, and the interference indication bit value of the level of interference correspondence of described RU is 00,01 or 10 situation;

Described a ' ₁Described a ' ₂, described a ' ₃With described a ' ₄Value be arbitrary value, described a ' ₁, described a ' ₂, described a ' ₃With described a ' ₄Different values to tackling the different disposal strategy of described uplink load information.

8. method as claimed in claim 3 is characterized in that, described down load information comprises relevant narrow emission power indication RNTP parameter.

9. method as claimed in claim 8 is characterized in that, described community user comprises this Cell Edge User,

The base station telegon of described this sub-district correspondence comprises to the cell load information of described this sub-district of the base station of described neighbor cell correspondence telegon transmission:

The base station telegon of described this sub-district correspondence sends the message that comprises described RNTP parameter to the base station of described neighbor cell correspondence telegon, and described RNTP parameter is used for to the base station of described neighbor cell correspondence telegon described this sub-district of indication down transmitting power grade on the Physical Resource Block PRB in setting-up time.

10. method as claimed in claim 9 is characterized in that,

Described RNTP parameter is provided with the power indication bit at each PRB, and described power indication bit is used to indicate the down transmitting power grade of this sub-district on described PRB.

11. method as claimed in claim 10 is characterized in that, the base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, comprising:

PRB at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the down load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the down load information of the described described neighbor cell that receives the downlink resource of described Cell Edge User distributes priority;

The downlink resource of described Cell Edge User distributes the weights of priority by formula

q _Scheduling=b ₁* n _RNTP+ b ₂* RNTP _sObtain,

Wherein, described q _SchedulingThe weights that distribute priority for the downlink resource of described Cell Edge User;

Described n _RNTPFor indicating the down transmitting power grade on described PRB by the RNTP parameter is the number of the neighbor cell of high power level;

Described RNTP _sValue be 1 or 0, the base station telegon of corresponding respectively described this sub-district correspondence is in the message that comprises the RNTP parameter that the base station of described neighbor cell correspondence telegon sends, the power indication bit value of described PRB correspondence is 1 or 0 situation;

Described b ₁With described b ₂Value be arbitrary value, described b ₁With described b ₂Different values to tackling the different disposal strategy of described down load information.

12. method as claimed in claim 10 is characterized in that, described community user also comprises this Cell Center User,

The base station telegon of described this sub-district correspondence is determined the priority of resource allocation of described community user according to described mutual cell load information, also comprises:

PRB at this cell allocation, the base station telegon of described this sub-district correspondence determines that according to the down load information of described this sub-district that sends to the base station of described neighbor cell correspondence telegon and the down load information of the described described neighbor cell that receives the downlink resource of described Cell Center User distributes priority;

The downlink resource of described Cell Center User distributes the weights of priority by formula

Q ' _Scheduling=b ' ₁* n _RNTP+ b ' ₂* RNTP _sObtain,

Wherein, described q ' _SchedulingThe weights that distribute priority for the downlink resource of this Cell Center User;

Described n _RNTPFor indicating the down transmitting power grade on described PRB by the RNTP parameter is the number of the neighbor cell of high power level;

Described RNTP _sValue be 1 or 0, the base station telegon of corresponding respectively described this sub-district correspondence is in the message that comprises the RNTP parameter that the base station of described neighbor cell correspondence telegon sends, the power indication bit value of described PRB correspondence is 1 or 0 situation;

Described b ' ₁With described b ' ₂Value be arbitrary value, described b ' ₁With described b ' ₂Different values to tackling the different disposal strategy of described down load information.

13. a base station telegon is applied to comprise in the system of base station dispatcher and at least two base station telegons, described at least two base station telegons are respectively applied for the cell load information that generates respective cell, it is characterized in that described base station telegon comprises:

Interactive module is used for the base station telegon corresponding with neighbor cell and carries out the mutual of cell load information;

Acquisition module electrically connects with described interactive module, is used for determining the priority of resource allocation of this community user according to the mutual cell load information of described interactive module;

Output module electrically connects with described acquisition module, and the priority of resource allocation that is used for this community user that described acquisition module is definite is exported to base station dispatcher.

14. base station as claimed in claim 13 telegon is characterized in that, described interactive module comprises:

Receive submodule, be used to receive the cell load information of the described neighbor cell that the base station telegon of described neighbor cell correspondence sends; And/or

Send submodule, be used for sending the cell load information of described this sub-district to the base station of described neighbor cell correspondence telegon.

15. as claim 13 or 14 described base station telegons, it is characterized in that, described cell load information comprises uplink load information and/or down load information, and described priority of resource allocation comprises that ascending resource distributes priority and/or downlink resource to distribute priority

Described acquisition module comprises:

Up acquisition module is used for according to described uplink load information, determines that the ascending resource of described community user distributes priority; And/or

Descending acquisition module is used for according to described down load information, determines that the downlink resource of described community user distributes priority.

16. base station as claimed in claim 15 telegon is characterized in that, described community user comprises this Cell Edge User, and described uplink load information comprises high interference indication HII parameter and/or overload indication OI parameter,

Described transmission submodule, also be used for sending the message that comprises described HII parameter to the base station of described neighbor cell correspondence telegon, described HII parameter is used for distributing in setting-up time to described this sub-district of the base station of described neighbor cell correspondence telegon indication the Resource Unit RU of described Cell Edge User; And/or

Send the message that comprises described OI parameter to the base station of described neighbor cell correspondence telegon, described OI parameter is used for the level of interference to the base station of described neighbor cell correspondence telegon indication RU.

17. base station as claimed in claim 15 telegon is characterized in that, described down load information comprises relevant narrow emission power indication RNTP parameter,

Described transmission submodule, also be used for sending the message that comprises described RNTP parameter to the base station of described neighbor cell correspondence telegon, described RNTP parameter is used for to the base station of described neighbor cell correspondence telegon described this sub-district of indication down transmitting power grade on the Physical Resource Block PRB in setting-up time.

18. a resource allocation system comprises base station dispatcher and at least two base station telegons, described at least two base station telegons are respectively applied for the cell load information that generates respective cell, it is characterized in that,

Described base station telegon, be used for the base station telegon corresponding and carry out the mutual of cell load information with neighbor cell, according to described mutual cell load information, determine the priority of resource allocation of this community user, the priority of resource allocation of described community user is exported to described base station dispatcher;

Described base station dispatcher is used for the priority of resource allocation according to described community user of described base station telegon output, carries out resource allocation.

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