CN102340824B - Multi-carrier high-speed data business scheduling method and device - Google Patents

Abstract

The invention discloses a multi-carrier high-speed data business scheduling method and a device; the scheduling priority of users in a multi-carrier high-speed uplink packet access (HSUPA) community is calculated together according to the historical information and the request information on a resident carrier, then when the load is distributed to each user according to the scheduling priority, loads are distributed multi-carrier users based on the usable loads of all carrier communities in which the multi-carrier users are located and the requests of the users according to the carrier priority determined through a method in which load balancing is in priority or the user transmission efficiency is in priority. The technical scheme of the invention can improve the uplink throughput of the HSUPA community and the users, i.e. improve the spectrum utilization rate, and simultaneously ensure the fairness of data transmission of multi-carrier users. Consequently, the transmission needs of the users are best met while all the carrier loads are balanced.

Description

A kind of method and apparatus of Multi-carrier high-speed data business scheduling

Technical field

The present invention relates to WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) wireless communication system technologies field, particularly relate to a kind of method and apparatus of Multi-carrier high-speed data business scheduling.

Background technology

In WCDMA wireless communication system, along with user is more and more higher to uplink and downlink message transmission rate experience requirements, introduce HSUPA (high speed uplink packet access, high speed uplink packet access (HSUPA) business), its key technology is the loading condition that base station needs to be grasped community, and the uplink load of UE mobile in community (UserEquipment, user terminal) is dispatched.The size of cell load can use RTWP (Received Total Wideband Power receives broadband gross power) to weigh, and RTWP lifting is larger, and load is higher.According to 3GPP (The 3rd Generation Partnership Project, third generation partner program) agreement, RNC (the Radio Network Controller of network side, radio network controller) system can arrange the reference value (Reference Received Total Wide Band Power) of a RTWP and the desired value (Maximum Target Received Total Wide Band Power) of RTWP, can count RTWP respectively _referenceand RTWP _target.Wherein RTWP _referencebe equivalent to without any system acceptance noise during UE or be called to make an uproar in the end, if for base station measurement during zero load report RNC system RTWP current base station measure RTWP be RTWP _current, then community present load can be calculated by following formula:

${\mathrm{Cell}\_\mathrm{load}}_{\mathrm{current}}=\frac{{\mathrm{RTWP}}_{\mathrm{current}}-{\mathrm{RTWP}}_{\mathrm{reference}}}{{\mathrm{RTWP}}_{\mathrm{current}}}---\left(1\right)$

From above formula, work as RTWP _current2 times that are lifted to that the end makes an uproar when being 3dB, community load of eating dishes without rice or wine is 0.5 that is 50%.RTWP _targetthen correspond to the load that permission system uses, such as RTWP _targetfor RTWP _reference4 times namely 6dB time, community eats dishes without rice or wine to allow the load used to be 0.75.

The process that the uplink load of base station to UE is dispatched is normally for the UE in community on a carrier frequency and community.First within measuring period, measure cell load, the available remaining load of calculation plot, more in a certain order, successively cell load is distributed to each UE and use.The load L of UE utilizes the SIR of each UE (Signal to Interference Ratio, signal interference ratio) estimated result to calculate, and i represents i-th UE:

$L_i=\frac{{\mathrm{SIR}}_{i,c}(1+{\mathrm{PO}}_{i,d}+{\mathrm{PO}}_{i,\mathrm{ec}}+{\mathrm{PO}}_{i,\mathrm{ed}})}{1+{\mathrm{SIR}}_{i,c}(1+{\mathrm{PO}}_{i,d}+{\mathrm{PO}}_{i,\mathrm{ec}}+{\mathrm{PO}}_{i,\mathrm{ed}})}---\left(2\right)$

In R9/R10 agreement, in order to improve user uplink data service rate further, propose DC-HSUPA (Dual-Cell HSUPA), namely user is allowed to send HSUPA business datum on two up-link carriers, so those skilled in the art face a technical barrier, namely how UE is distributed in the load on multiple carrier wave, could accomplish that the equilibrium of carrier load and UE transmission demand obtain maximum satisfied simultaneously.

Summary of the invention

The technical problem to be solved in the present invention is, provides a kind of method and apparatus of Multi-carrier high-speed data business scheduling, meets the demand of user's transmission while realizing the equilibrium of each carrier load to greatest extent.

The technical solution used in the present invention is, the method for described Multi-carrier high-speed data business scheduling, comprising:

According to service priority indication information, true request speed, the historical speed of user, and the current service buffer state of user determines the dispatching priority of user;

Then when distributing load according to dispatching priority to each user, for multi-carrier user, according to the carrier wave priority that mode that is preferential by load balancing or user emission power efficiency comes first is determined, the community disposable load situation of each carrier wave at foundation multi-carrier user place and the request of user are that it distributes load.

Further, the process obtaining the true request speed of described user is as follows:

The service buffer state computation current according to user goes out the limited request rate of user cache data in user's limit priority buffer memory having been passed correspondence in a TTI (Transmission TimeInterval, Transmission Time Interval);

Take family each carrier wave as the maximum in the maximum rate transmitted during main carrier as the limited request rate of user power;

Using smaller in limited for user cache request rate and the limited request rate of user power as the true request speed of user.

Further, the process obtaining the historical speed of described user is as follows:

Transmission block in timing statistics on cumulative each carrier wave, then obtain transmission rate on each carrier wave divided by timing statistics;

Then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining user.

Further, if the true request speed of user is RateReq, the historical speed of user is RateHis, and the dispatching priority Pri of described user is obtained by formula below:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right)$

Wgt represents the weights of parameter in formula, and SPI is the service priority indication information of user, and HLBS is the ratio of data to be transferred total amount and user cache service condition in highest priority logical channel, and TEBS is user cache data volume.

Further, for multi-carrier user, described basis is comprised by the process of the preferential mode determination carrier wave priority of load balancing:

According to the height of the size setting carrier wave priority of the community disposable load on each carrier wave that user is resident.

Further, for multi-carrier user, described basis is comprised by the process of the mode determination carrier wave priority of user emission power efficiency comes first:

Relatively under user's maximum transmission power restrictive condition, each carrier wave, respectively as the maximum rate transmitted during main carrier, sets the height of carrier wave priority according to the size of the maximum rate of transmission.

Further, the described community disposable load situation of each carrier wave according to multi-carrier user place and the request of user are that the process that it distributes load comprises:

Step one, for limit priority carrier wave, get the community disposable load of limit priority carrier wave, load that the limited request rate of user cache is corresponding, and the minimum value in this three of load corresponding to the limited request rate of user power is as load limit priority carrier wave being distributed to user, upgrade the community disposable load of limit priority carrier wave;

Step 2, based on speed corresponding to the load carrier wave of limit priority being distributed to user, upgrade user cache state information; The carrier wave being deducted limit priority by the maximum transmission power of user is distributed to the transmitting power that the load of user is corresponding, obtain user's transmission power;

Step 3, for the second priority carrier wave, get the community disposable load of the second priority carrier wave, upgrade after load corresponding to the limited request rate of user cache and minimum value in this three of load corresponding to request rate after the restriction of user's transmission power as the load the second priority carrier wave being distributed to user, upgrade the community disposable load of the second priority carrier wave; The rest may be inferred, until all carrier dispatchings are complete.

Further, the process obtaining the community disposable load of each carrier wave is as follows:

Present load Cell_load in community on carrier wave is calculated according to reception broadband gross power RTWP _current, according to the intended recipient broadband gross power RTWP of system configuration _targetcalculate community maximum permission working load Cell_load _uplimit;

The present load sum of user is calculated according to the signal interference ratio information of user on each carrier wave and power excursion thus calculate described carrier wave as community disposable load during main carrier n is community user number.

Further, when having multi-carrier user and single carrier user in the cell and deposit, the method comprises further:

For single carrier user determines the dispatching priority of user, and for it distributes load on its resident carrier wave.

The present invention also provides a kind of device of Multi-carrier high-speed data business scheduling, comprising:

Dispatching priority of users determination module, for the service priority indication information according to user, true request speed, historical speed, and the current service buffer state of user determines the dispatching priority of user;

Load dispatch module, for distributing load according to dispatching priority to each user.

Further, described dispatching priority of users determination module comprises further:

True request rate calculation module, go out data in user's limit priority buffer memory to have been passed in a TTI the limited request rate of user cache of correspondence for the service buffer state computation current according to user, take family each carrier wave as the maximum in the maximum rate transmitted during main carrier as the limited request rate of user power, using smaller in limited for user cache request rate and the limited request rate of user power as the true request speed of user;

Historical speed computing module, the transmission block on each carrier wave cumulative in timing statistics, then obtain transmission rate on each carrier wave divided by timing statistics, then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining user;

Dispatching priority of users computing module, for basis formulae discovery dispatching priority of users Pri below:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right)$

In formula, RateReq is the true request speed of user, RateHis is the historical speed of user, Wgt represents the weights of parameter in formula, SPI is the service priority indication information of user, HLBS is the ratio of data to be transferred total amount and user cache service condition in highest priority logical channel, and TEBS is user cache data volume.

Further, described load dispatch module comprises further:

Carrier wave Priority Determination module, for for multi-carrier user, according to mode determination carrier wave priority that is preferential by load balancing or user emission power efficiency comes first;

Multi-carrier user load distribution module for according to described carrier wave priority, is that multi-carrier user distributes load according to the community disposable load situation of each carrier wave at user place and the request of user.

Adopt technique scheme, the present invention at least has following advantages:

The method and apparatus of Multi-carrier high-speed data business scheduling of the present invention, to user and the single carrier user of multi-carrier HSUPA, can according to the historical information on its resident carrier wave and solicited message, the dispatching priority of unified calculation user, when then distributing load according to dispatching priority to each user, for multi-carrier user, according to the carrier wave priority that mode that is preferential by load balancing or user emission power efficiency comes first is determined, the community disposable load situation of each carrier wave at foundation multi-carrier user place and the request of user are that it distributes load.Adopt technical solution of the present invention, multi-carrier HSUPA community and user uplink throughput can be improved, namely improve the availability of frequency spectrum, ensure the fairness of the transfer of data of multi-carrier user simultaneously.Therefore, while the equilibrium realizing each carrier load, meet the demand of user's transmission to greatest extent.

Accompanying drawing explanation

Fig. 1 is the method flow diagram of Multi-carrier high-speed data business scheduling described in first embodiment of the invention;

Fig. 2 is the calculation flow chart of the true request speed RateReq of UE of the present invention;

Fig. 3 is the flow chart that the present invention is directed to each multicarrier UE distribution load;

The device composition schematic diagram that Fig. 4 is Multi-carrier high-speed data business scheduling described in third embodiment of the invention.

Embodiment

For further setting forth the present invention for the technological means reaching predetermined object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to the method and apparatus of the described Multi-carrier high-speed data business scheduling that the present invention proposes, be described in detail as follows.

When multi-carrier HSUPA is arranged net, up same sector has multiple carrier wave to may be used for UE transfer of data, and these UE share ascending load resource at the multiple carrier wave in same sector, are called multicarrier UE.When multicarrier UE access network, SPI (ServicePriority Indication, the service priority indicates) information of the reflection data traffic types of this UE of network side RNC informing base station.The RTWP of each carrier wave is obtained in total wireless signal that base station receives from eat dishes without rice or wine.UE sends wireless energy signal by eating dishes without rice or wine to base station, base station is carried out demodulation to the wireless energy signal that UE sends and is obtained I/Q data stream, TB (Transmit Block) block, SI (Scheduling Information) information is obtained after row decoding process and FP process are flow to I/Q data, SI information comprises: the service buffer state that the UPH (ue power headroom, dump power) on each carrier wave that UE reports and UE is current.The current service buffer state of UE comprises the current HLBS of UE (Highestpriority Logical channel Buffer Status, the ratio of data to be transferred total amount and UE buffer memory service condition in highest priority logical channel) and TEBS (Total E-DCH Buffer Status, the situation of UE buffer data size).

Scheduler, uplink demodulation decoding module, FP (Frame Protocol) processing module and measurement module is comprised in base station.

First embodiment of the invention, in a multicarrier HUSPA community, comprise K carrier wave and n user, suppose that n user is multi-carrier user, as shown in Figure 1, in the present embodiment, the method for Multi-carrier high-speed data business scheduling is as follows:

Step S1: base station obtains measurement, decoding information.Scheduler in base station obtains the SIR information of user on each carrier wave and other decoding information from uplink demodulation decoding module, obtains the up-to-date SI information of each user, obtain the reception broadband gross power RTWP of each carrier wave from measurement module from FP processing module.

Step S2: the community disposable load calculating initial carrier wave.With reference to the formula (1) in background technology, receive broadband gross power RTWP1 according to first and calculate present load Cell_load1 in community on first carrier C1 _current, according to the intended recipient broadband gross power RTWP of system configuration _targetthe community maximum permission working load Cell_load1 on first carrier C1 can be calculated _uplimit.With reference to the formula (2) in background technology, calculate the present load sum of all users on first carrier C1 according to the SIR information of all n users in community on first carrier C1 and power excursion thus calculate first carrier C1 as community disposable load during main carrier

In like manner, the second carrier wave C2 is as community disposable load during main carrier ..., K carrier wave CK is as community disposable load during main carrier

Step S3, calculates the dispatching priority of UE.The relation of service buffer state, the true request speed of UE and the historical speed of UE that data traffic types SPI, UE of dispatching priority Pri and the UE of UE are current as shown in the formula:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right)---\left(3\right)$

Wgt represents the weights of parameter in formula.

The dispatching priority Pri of UE sorts from big to small according to the result that formula (3) calculates and obtains the dispatching sequence of UE, is the sequencing that UE distributes load.

In formula (3), base station to the computational process of the true request speed RateReq of UE as shown in Figure 2, comprises the steps:

Step S101, the UE request rate and the limited request rate RateReqBuf of UE buffer memory that are determined by the buffer status of UE is calculated according to the SI information of UE, RateReqBuf=HLBS × TEBS/TTI, the physical significance of this speed is, in a TTI, data in UE limit priority buffer memory have been passed the speed of correspondence.

Step S102, according to the dump power UPH on each carrier wave that UE reports, describe with reference to 3GPP agreement 25.213Table 1B.0 ~ 1B.3 and 25.2145.1.2.5B chapters and sections, calculate under UE maximum transmission power, different carrier is as the maximum rate RateReqPwrLmtC1 ~ RateReqPwrLmtCk that can transmit during main carrier.UE maximum transmission power is the parameter determined by UE equipment.

Step S103, gets the maximum in RateReqPwrLmtC1 ~ RateReqPwrLmtCk, can as UE power limited request rate RateReqPwr.

Step S104, finally gets the true request speed as UE less in UE power limited request rate RateReqPwr and UE buffer memory limited request rate RateReqBuf.

In formula (3), the historical speed RateHis of UE calculates and needs the statistical conditions considering its transmission rate on each carrier wave, and last combined calculation goes out the historical speed of a UE.Concrete, in certain timing statistics, be generally 40ms, cumulative TB (Transmit block) block on each carrier wave, obtain transmission rate on each carrier wave divided by timing statistics again, then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining UE.Preferably, be that the weight coefficient of transmission rate allocation of two carrier waves is preferably 0.5.

Step S4, combined dispatching.The sequencing of the distribution load of all UE that the scheduler of base station calculates according to step S3, obtain the UE priority query of combined dispatching, take out UE to be scheduled successively from UE priority query, ask situation, allocation schedule mandate according to the loading condition of the resident carrier wave of UE, UE.

For each multicarrier UE, the process of distributing load can as shown in Figure 3, and for the sake of simplicity, this sentences two carrier subscriber is that example specifically describes and is:

Step S201, takes out a UE to be scheduled from UE priority query;

Step S202, judges whether current algorithm is that load balancing is preferential, if load balancing is preferential, then performs step S203, preferential if not load balancing, be then that UE transmit power efficiency is preferential, perform step S204.

Step S203, compare community disposable load C1_Load and C2_Load of two carrier waves in current UE place, the carrier wave that disposable load is larger is main carrier, priority scheduling, and the carrier wave that disposable load is less is auxiliary carrier wave, jump procedure S205; Community disposable load C1_Load and C2_Load of two initial carrier waves is calculated by step S2, can be upgraded in step S206 and step S209 later.

Step S204, relatively under UE maximum transmission power restrictive condition, two carrier waves are respectively as the corresponding maximum possible transmission rate RateReqPwrLmtC1 and RateReqPwrLmtC2 of main carrier, the larger carrier wave of corresponding transmission rate is as main carrier, priority scheduling, the less carrier wave of corresponding transmission rate is as auxiliary carrier wave;

Step S205, for main carrier, get maximum rate that load Load_RateReqBuffPriC and UE corresponding to the community limited request rate of disposable load PriC_load, UE buffer memory of main carrier can transmit on main carrier and load Load_RateReqPwrLmtPriC corresponding to UE power limited request rate, the minimum value of getting wherein can distribute load Load_Alloc_on_PriC as UE on main carrier.

Step S206, main carrier presses authorized appropriation corresponding to load Load_Alloc_on_PriC to UE, and upgrades the community disposable load PriC_load of main carrier.

Step S207, the speed that computational load Load_Alloc_on_PriC is corresponding and the transmitting power that UE uses, the speed corresponding based on this load Load_Alloc_on_PriC upgrades UE buffer status information, obtains the load Load_RateReqBuffSecC that the limited request rate of UE buffer memory after upgrading is corresponding.Meanwhile, the maximum transmission power of user deducts the transmitting power that on main carrier, UE uses, and obtains user's transmission power on auxiliary carrier wave, and then obtains load Load_RateReqPwrRemain corresponding to the request rate after the restriction of UE transmission power.

Step S208, for auxiliary carrier wave, get the load Load_RateReqPwrRemain that the request rate after load Load_RateReqBuffSecC corresponding to the limited request rate of UE buffer memory after the community disposable load SecC_Load of auxiliary carrier wave, renewal and the restriction of UE transmission power is corresponding, the minimum value of getting wherein can distribute load Load_Alloc_on_SecC as UE on auxiliary carrier wave.

Step S209, auxiliary carrier wave presses authorized appropriation corresponding to load Load_Alloc_on_SecC to UE, and upgrades the community disposable load SecC_load of auxiliary carrier wave.

Step S210, gets next UE from UE priority query, performs step S201 ~ S209, is all disposed until institute needs to dispatch UE.

Second embodiment of the invention, in a multicarrier HUSPA community, comprise K carrier wave and n user, suppose that in n user, existing multi-carrier user has again single carrier user, the method of the Multi-carrier high-speed data business scheduling of the present embodiment is on the basis of the first embodiment technical scheme, also need to increase some special processings to single carrier user, concrete:

Base station, to the computational process of the true request speed RateReq of UE in formula (3), comprises the steps:

Step S301, the UE request rate and the limited request rate RateReqBuf of UE buffer memory that are determined by the buffer status of UE is calculated according to the SI information of UE, RateReqBuf=HLBS × TEBS/TTI, the physical significance of this speed is, in a TTI (Transmission Time Interval, Transmission Time Interval), data in UE limit priority buffer memory have been passed the speed of correspondence.

Step S302, for multicarrier UE, according to the dump power UPH on each carrier wave that UE reports, describe with reference to 3GPP agreement 25.213Table 1B.0 ~ 1B.3 and 25.2145.1.2.5B chapters and sections, calculate under UE maximum transmission power, different carrier is as the maximum rate RateReqPwrLmtC1 ~ RateReqPwrLmtCk that can transmit during main carrier.UE maximum transmission power is the parameter determined by UE equipment.

Step S303, gets maximum in RateReqPwrLmtC1 ~ RateReqPwrLmtCk as UE power limited request rate RateReqPwr.

Step S304, for single carrier UE, according to the dump power UPH on its resident carrier wave Cx that this UE reports, describe with reference to 3GPP agreement 25.213Table 1B.0 ~ 1B.3 and 25.2145.1.2.5B chapters and sections, calculate under UE maximum transmission power, the maximum rate RateReqPwrLmtCx that carrier wave Cx can transmit, i.e. UE power limited request rate RateReqPwr.

Step S305, finally gets the true request speed as UE less in UE power limited request rate RateReqPwr and UE buffer memory limited request rate RateReqBuf.

In formula (3), the historical speed RateHis for multicarrier UE, UE calculates and needs the statistical conditions considering its transmission rate on each carrier wave, and last combined calculation goes out the historical speed of a UE.Concrete, in certain timing statistics, be generally 40ms, cumulative TB (Transmit block) block on each carrier wave, obtain transmission rate on each carrier wave divided by timing statistics again, then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining UE.Preferably, be the weight coefficient of transmission rate allocation of two carrier waves be 0.5.

Historical speed RateHis computational methods for single carrier UE, UE, in certain timing statistics, are generally 40ms, cumulative TB block on carrier wave, then obtain transmission rate on carrier wave divided by timing statistics, i.e. the historical speed of UE.

For each single carrier UE to be scheduled, the process of distributing load specifically comprises:

For the carrier wave that single carrier UE is resident, first judge whether the community disposable load on carrier wave is greater than the requirement of the corresponding load of UE power limited request rate, if, just UE is distributed in corresponding for UE power limited request rate load, and the community disposable load upgraded on this carrier wave, otherwise distribute to UE by carrier wave all remaining community disposable load, and the community disposable load state of this carrier wave is set to without remaining load.

3rd embodiment, a kind of device of Multi-carrier high-speed data business scheduling, as shown in Figure 4, comprises following concrete part:

1) dispatching priority of users determination module, for the service priority indication information according to user, true request speed, historical speed, and the current service buffer state of user determines the dispatching priority of user; Described UE dispatching priority determination module comprises further:

True request rate calculation module, go out data in user's limit priority buffer memory to have been passed in a TTI the limited request rate of user cache of correspondence for the service buffer state computation current according to user, take family each carrier wave as the maximum in the maximum rate transmitted during main carrier as the limited request rate of user power, using smaller in limited for user cache request rate and the limited request rate of user power as the true request speed of user.

Historical speed computing module, the transmission block on each carrier wave cumulative in timing statistics, then obtain transmission rate on each carrier wave divided by timing statistics, then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining user.

Dispatching priority of users computing module, for basis formulae discovery dispatching priority of users Pri below:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right)$

In formula, RateReq is the true request speed of user, and RateHis is the historical speed of user, and Wgt represents the weights of parameter in formula.

The effect of above-mentioned three modules is described for multi-carrier user, but can utilize above-mentioned three module determination dispatching priorities equally for single carrier user.

2) load dispatch module, for distributing load according to dispatching priority to each user.Described load distribution module comprises further:

Carrier wave Priority Determination module, for for multi-carrier user, according to mode determination carrier wave priority that is preferential by load balancing or user emission power efficiency comes first;

Multi-carrier user load distribution module for according to described carrier wave priority, is that multi-carrier user distributes load according to the community disposable load situation of each carrier wave at user place and the request of user.

Optionally, single carrier user load distribution module, the community disposable load situation of carrier wave and the request of user that are same as foundation user place are that multi-carrier user distributes load, concrete, first judge whether the community disposable load on carrier wave is greater than the requirement of the corresponding load of UE power limited request rate, if, just UE is distributed in corresponding for UE power limited request rate load, and the community disposable load upgraded on this carrier wave, otherwise distribute to UE by carrier wave all remaining community disposable load, and the community disposable load state of this carrier wave is set to without remaining load.The method of distributing load due to single carrier user is well known in the art, does not describe in detail herein.

The method and apparatus of Multi-carrier high-speed data business scheduling of the present invention, to user and the single carrier user of multi-carrier HSUPA, can according to the historical information on its resident carrier wave and solicited message, the dispatching priority of unified calculation UE, when then distributing load according to dispatching priority to each user, be multi-carrier user if current, loading condition then in conjunction with carrier wave determines each carrier wave priority, for multi-carrier user distributes load, accomplish intercarrier load balancing, thus make the availability of frequency spectrum reach maximization.Adopt technical solution of the present invention, multi-carrier HSUPA community and the up throughput of UE can be improved, namely improve the availability of frequency spectrum, ensure the fairness of the transfer of data of multi-carrier user simultaneously.Therefore, while the equilibrium realizing each carrier load, meet the demand of UE transmission to greatest extent.

By the explanation of embodiment, should to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, but appended diagram be only to provide with reference to and the use of explanation, be not used for being limited the present invention.

Claims (6)

1. a method for Multi-carrier high-speed data business scheduling, is characterized in that, according to service priority indication information, true request speed, the historical speed of user, and the current service buffer state of user determines the dispatching priority of user;

If the true request speed of user is RateReq, the historical speed of user is RateHis, and the dispatching priority Pri of described user is obtained by formula below:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right)$

Wgt represents the weights of parameter in formula, and SPI is the service priority indication information of user, and HLBS is the ratio of data to be transferred total amount and user cache service condition in highest priority logical channel, and TEBS is user cache data volume;

Then when distributing load according to dispatching priority to each user, for multi-carrier user, according to the carrier wave priority that mode that is preferential by load balancing or user emission power efficiency comes first is determined, the community disposable load situation of each carrier wave at foundation multi-carrier user place and the request of user are that it distributes load;

The process obtaining the true request speed of described user is as follows:

The service buffer state computation current according to user goes out the limited request rate of user cache data in user's limit priority buffer memory having been passed correspondence in a Transmission Time Interval TTI;

Take family each carrier wave as the maximum in the maximum rate transmitted during main carrier as the limited request rate of user power;

Using smaller in limited for user cache request rate and the limited request rate of user power as the true request speed of user;

The process obtaining the historical speed of described user is as follows:

Transmission block in timing statistics on cumulative each carrier wave, then obtain transmission rate on each carrier wave divided by timing statistics;

Then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining user;

The described community disposable load situation of each carrier wave according to multi-carrier user place and the request of user are that the process that it distributes load comprises:

Step one, for limit priority carrier wave, get the community disposable load of limit priority carrier wave, load that the limited request rate of user cache is corresponding, and the minimum value in this three of load corresponding to the limited request rate of user power is as load limit priority carrier wave being distributed to user, upgrade the community disposable load of limit priority carrier wave;

Step 2, based on speed corresponding to the load carrier wave of limit priority being distributed to user, upgrade user cache state information; The carrier wave being deducted limit priority by the maximum transmission power of user is distributed to the transmitting power that the load of user is corresponding, obtain user's transmission power;

Step 3, for the second priority carrier wave, get the community disposable load of the second priority carrier wave, upgrade after load corresponding to the limited request rate of user cache and minimum value in this three of load corresponding to request rate after the restriction of user's transmission power as the load the second priority carrier wave being distributed to user, upgrade the community disposable load of the second priority carrier wave; The rest may be inferred, until all carrier dispatchings are complete.

2. the method for Multi-carrier high-speed data business scheduling according to claim 1, is characterized in that, for multi-carrier user, described basis is comprised by the process of the preferential mode determination carrier wave priority of load balancing:

According to the height of the size setting carrier wave priority of the community disposable load on each carrier wave that user is resident.

3. the method for Multi-carrier high-speed data business scheduling according to claim 1, it is characterized in that, for multi-carrier user, described basis is comprised by the process of the mode determination carrier wave priority of user emission power efficiency comes first:

Relatively under user's maximum transmission power restrictive condition, each carrier wave, respectively as the maximum rate transmitted during main carrier, sets the height of carrier wave priority according to the size of the maximum rate of transmission.

4. the method for Multi-carrier high-speed data business scheduling according to claim 1, it is characterized in that, the process obtaining the community disposable load of each carrier wave is as follows:

Present load Cell_load in community on carrier wave is calculated according to reception broadband gross power RTWP _current, calculate community maximum permission working load Cell_load according to the intended recipient broadband gross power RTWPtarget of system configuration _uplimit;

The present load sum of user is calculated according to the signal interference ratio information of user on each carrier wave and power excursion thus calculate described carrier wave as community disposable load during main carrier $\mathrm{Cell}\_{\mathrm{load}}_{\mathrm{av}}=\mathrm{Cell}\_{\mathrm{load}}_{\mathrm{up\; lim\; it}}-\mathrm{Cell}\_{\mathrm{load}}_{\mathrm{current}}+\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{L}_i,$ N is community user number.

5. the method for Multi-carrier high-speed data business scheduling according to claim 1, is characterized in that, when having multi-carrier user and single carrier user in the cell and deposit, the method comprises further:

For single carrier user determines the dispatching priority of user, and for it distributes load on its resident carrier wave.

6. a device for Multi-carrier high-speed data business scheduling, is characterized in that, comprising:

Dispatching priority of users determination module, for the service priority indication information according to user, true request speed, historical speed, and the current service buffer state of user determines the dispatching priority of user;

Concrete, if the true request speed of user is RateReq, the historical speed of user is RateHis, and the dispatching priority Pri of described user is obtained by formula below:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right)$

Wgt represents the weights of parameter in formula, and SPI is the service priority indication information of user, and HLBS is the ratio of data to be transferred total amount and user cache service condition in highest priority logical channel, and TEBS is user cache data volume;

Load dispatch module, for distributing load according to dispatching priority to each user;

Described dispatching priority of users determination module comprises further:

True request rate calculation module, go out data in user's limit priority buffer memory to have been passed in a TTI the limited request rate of user cache of correspondence for the service buffer state computation current according to user, take family each carrier wave as the maximum in the maximum rate transmitted during main carrier as the limited request rate of user power, using smaller in limited for user cache request rate and the limited request rate of user power as the true request speed of user;

Historical speed computing module, the transmission block on each carrier wave cumulative in timing statistics, then obtain transmission rate on each carrier wave divided by timing statistics, then the transmission rate on each carrier wave is weighted to the historical speed on average obtaining user;

Dispatching priority of users computing module, for basis formulae discovery dispatching priority of users Pri below:

$\mathrm{Pri}=\mathrm{Wgt}\left(\mathrm{SPI}\right)\×\frac{\mathrm{RateReq}}{1+\mathrm{RateHis}}\×\mathrm{Wgt}\left(\log \left(\mathrm{HLBS}\right)\right)+\log \left(\mathrm{TEBS}\right);$

Described load dispatch module comprises further:

Carrier wave Priority Determination module, for for multi-carrier user, according to mode determination carrier wave priority that is preferential by load balancing or user emission power efficiency comes first;

Multi-carrier user load distribution module for according to described carrier wave priority, is that multi-carrier user distributes load according to the community disposable load situation of each carrier wave at user place and the request of user;

Described according to described carrier wave priority, the community disposable load situation of each carrier wave at foundation user place and the request of user are that the process of multi-carrier user distribution load comprises:

Step one, for limit priority carrier wave, get the community disposable load of limit priority carrier wave, load that the limited request rate of user cache is corresponding, and the minimum value in this three of load corresponding to the limited request rate of user power is as load limit priority carrier wave being distributed to user, upgrade the community disposable load of limit priority carrier wave;

Step 2, based on speed corresponding to the load carrier wave of limit priority being distributed to user, upgrade user cache state information; The carrier wave being deducted limit priority by the maximum transmission power of user is distributed to the transmitting power that the load of user is corresponding, obtain user's transmission power;

Step 3, for the second priority carrier wave, get the community disposable load of the second priority carrier wave, upgrade after load corresponding to the limited request rate of user cache and minimum value in this three of load corresponding to request rate after the restriction of user's transmission power as the load the second priority carrier wave being distributed to user, upgrade the community disposable load of the second priority carrier wave; The rest may be inferred, until all carrier dispatchings are complete.