CN102571285B - Method for scheduling user terminal uplink data rate and apparatus thereof - Google Patents

Method for scheduling user terminal uplink data rate and apparatus thereof Download PDF

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Publication number
CN102571285B
CN102571285B CN201210020993.XA CN201210020993A CN102571285B CN 102571285 B CN102571285 B CN 102571285B CN 201210020993 A CN201210020993 A CN 201210020993A CN 102571285 B CN102571285 B CN 102571285B
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user terminal
subchannel
secondary flow
main flow
equivalence
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CN102571285A (en
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铁晓磊
吴更石
花梦
杨毅
焦淑蓉
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2013/070315 priority patent/WO2013113254A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method for scheduling user terminal uplink data rate and an apparatus thereof. The method comprises the following steps: a base station receives a double-flow signal sent by a user terminal by employing a UL MIMO emission mode, a main flow signal in the double-flow signal is transmitted in a main flow equivalence sub-channel, and an auxiliary flow signal in the double-flow signal is transmitted in an auxiliary flow equivalence sub-channel; the base station configures a main flow scheduling permission value corresponding to the main flow equivalence sub-channel and calculates an auxiliary flow scheduling permission value corresponding to the auxiliary flow equivalence sub-channel according to a value of a signal to noise ratio of the main flow equivalence sub-channel to the auxiliary flow equivalence sub-channel; the base station controls data rate of the user terminal in the main flow equivalence sub-channel through the main flow scheduling permission value and controls data rate of the user terminal in the auxiliary flow equivalence sub-channel through the auxiliary flow scheduling permission value. By utilizing a technical scheme of the invention, purposes of reducing system interference and ensuring system error code performance under the UL MIMO emission mode can be realized.

Description

A kind of method and apparatus of scheduling user terminal upstream data rate
Technical field
The present invention relates to communication technical field, be specifically related to a kind of method and apparatus of scheduling user terminal upstream data rate.
Background technology
WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) is a broadband direct sequence spread spectrum codes division multiple access system.Because WCDMA is the system of identical networking, although used scrambler and spread spectrum to carry out code division multiplexing, but because wireless channel exists multipath effect, so the uplink meeting of UE (User Equipment, subscriber equipment) causes the uplink interference to Serving cell and other neighbor cell.This interference can cause the uplink interference lifting (RoT, Rise overThermal) of Serving cell.In base station NodeB side, demodulation threshold C/I is certain, and C can not infinitely be increased by the restriction of terminal transmit power, therefore for guaranteeing the demodulation performance of base station, interference is controlled under certain thresholding, this just needs base station to regulate and limit the transmitting power of each UE, thereby RoT is controlled under certain thresholding.
At HSUPA (high speed uplink packet access, High Speed Uplink Packet access) in, different E-DPDCH (Enhanced Dedicated Physical Data Channel, enhancing Dedicated Physical Data Channel) transmitting power of DPCCH (Dedicated Physical Control Channel, Dedicated Physical Control Channel) affects the received signal to noise ratio of E-DPDCH relatively.Under different signal to noise ratio conditions, the size of the transmission block that E-DPDCH can transmit (Transport Block, TB) is also different.Because the data volume of E-DPDCH carrying may have larger variation, this just makes E-DPDCH have a greater change scope in the uplink interference of receiving terminal (NodeB), and the transmitting power that therefore limits UE mainly realizes by controlling the transmitting power of E-DPDCH.And this is mainly to realize by limiting the higher uplink bit rate of (scheduling) UE.
In HSUPA under non-MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) pattern, NodeB can control by data rate scheduling mechanism the transmitting power of UE, thereby reaches the object of controlling RoT.Concrete scheduling process can be described below:
First, NodeB controls by inner-loop power control and exterior ring power the mode combining and guarantees that DPCCH is in the stability of receiving terminal (being NodeB side) receptivity.
Secondly, NodeB arranges E-DPDCH with respect to the transmitting power biasing of DPCCH, with this, controls the uplink interference lifting of UE.Different E-DPDCH received signal to noise ratio corresponding to transmitting power biasing, the index value of transmitting power biasing is called as scheduling grant value SchG (Scheduled Grant) in NodeB side, and NodeB controls the uplink interference lifting RoT of UE just by the mode of allocation schedule License Value SchG.
Finally, NodeB is handed down to UE by scheduling grant value SchG, by UE, carry out E-TFCI (indication of E-DCH transformat combination) and select, select suitable TB block size and transformat, thereby realize the object of controlling UE transmitting power by controlling UE uplink transmission rate.
UL MIMO (UpLink MIMO, Uplink MIMO) is a research project in current UTRA R11 version.In prior art, still do not exist to solve under UL MIMO emission mode and reduce the scheme of disturbing, guaranteeing system error performance.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus of scheduling user terminal upstream data rate, to reduce system interference under UL MIMO emission mode, to guarantee system error performance.
For this reason, the embodiment of the present invention provides following technical scheme:
A method for scheduling user terminal upstream data rate, comprising:
Base station receives the double-current signal that user terminal adopts up multiple-input and multiple-output UL MIMO emission mode to send, and the main flow signal in described double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in described double-current signal is in secondary flow equivalence subchannel transmission;
Main flow scheduling grant value corresponding to base station configuration main flow equivalence subchannel, and according to secondary flow scheduling grant value corresponding to the equivalent subchannel of secondary flow described in the ratio calculation of the signal to noise ratio of described main flow equivalence subchannel and the signal to noise ratio of described secondary flow equivalence subchannel;
User terminal is controlled at the data rate of main flow equivalence subchannel by described main flow scheduling grant value in base station, by described secondary flow scheduling grant value, controls user terminal at the data rate of secondary flow equivalence subchannel.
A device for scheduling user terminal upstream data rate, comprising:
Receiving element, the double-current signal that adopts up multiple-input and multiple-output UL MIMO emission mode to send for receiving user terminal, main flow signal in described double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in described double-current signal is in secondary flow equivalence subchannel transmission;
Main flow scheduling grant value dispensing unit, for configuring main flow scheduling grant value corresponding to main flow equivalence subchannel;
Secondary flow scheduling grant value computing unit, for according to secondary flow scheduling grant value corresponding to the equivalent subchannel of secondary flow described in the ratio calculation of the signal to noise ratio of described main flow equivalence subchannel and the signal to noise ratio of described secondary flow equivalence subchannel;
Mainstream data speed control unit, for controlling user terminal at the data rate of main flow equivalence subchannel by described main flow scheduling grant value;
Secondary flow data rate control unit, for controlling user terminal at the data rate of secondary flow equivalence subchannel by described secondary flow scheduling grant value.
The method and apparatus of the scheduling user terminal upstream data rate of the embodiment of the present invention, carries out differentiated treatment to the upstream data rate of the upstream data rate of main flow equivalence subchannel and secondary flow equivalence subchannel respectively.For main flow equivalence subchannel, the data rate of the E-DPDCH of UE on main flow equivalence subchannel is directly controlled in base station by main flow scheduling grant value; For secondary flow equivalence subchannel, it is reference that main flow scheduling grant value first be take in base station, according to the ratio calculation secondary flow scheduling grant value of the signal to noise ratio between main flow equivalence subchannel and secondary flow equivalence subchannel, and then according to secondary flow scheduling grant value, control the upstream data rate of the S-E-DPDCH of UE on the equivalent subchannel of secondary flow.Thereby the error performance that makes main flow E-DPDCH and secondary flow S-E-DPDCH reaches close even par, realize under UL MIMO emission mode and controlling under the prerequisite of up-link interference, guarantee the error performance transmitting under UL MIMO emission mode.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the method for embodiment of the present invention scheduling user terminal upstream data rate;
Fig. 2 is the emitting structural schematic diagram of UL-MIMO;
Fig. 3 is that in the embodiment of the present invention, the flow chart that UE selects main flow equivalence sub-channel data rates is controlled in base station;
Fig. 4 is that in the embodiment of the present invention, the flow chart that UE selects secondary flow equivalence sub-channel data rates is controlled in base station;
Fig. 5 is the flow chart that calculates secondary flow scheduling grant value in the embodiment of the present invention;
Fig. 6 is the structural representation of the device of embodiment of the present invention scheduling user terminal upstream data rate;
Fig. 7 is the structural representation of secondary flow scheduling grant value computing unit in the embodiment of the present invention;
Fig. 8 is the structural representation of mainstream data speed control unit in the embodiment of the present invention;
Fig. 9 is the structural representation of secondary flow data rate control unit in the embodiment of the present invention.
Embodiment
In order to make those skilled in the art person understand better the present invention program, below in conjunction with drawings and embodiments, the embodiment of the present invention is described in further detail.
Method, the Apparatus and system of embodiment of the present invention scheduling user terminal upstream data rate, control user terminal in the upstream data rate of main flow equivalence subchannel by main flow scheduling grant value, guarantees transmission reliability and the error performance of main flow equivalence subchannel; For secondary flow equivalence subchannel, the main flow scheduling grant value of take is reference, according to the ratio of the signal to noise ratio between main flow equivalence subchannel and secondary flow equivalence subchannel, calculate secondary flow scheduling grant value, thereby further by secondary flow scheduling grant value, control the upstream data rate of secondary flow equivalence subchannel, so that anti-interference and the error performance of secondary flow equivalence subchannel and main flow equivalence subchannel are basic identical.
As shown in Figure 1, be the flow chart of the method for embodiment of the present invention scheduling user terminal upstream data rate, comprising:
Step 101, base station receives the double-current signal that user terminal adopts UL MIMO emission mode to send, and the main flow signal in double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in double-current signal is in secondary flow equivalence subchannel transmission.
User terminal (UE) adopts the UL-MIMO radiation pattern of pilot tone precoding to base station transmitted signal, as shown in Figure 2, is UL-MIMO emitting structural schematic diagram.Wherein, 21 is main flow emitting structural, and for launching the main flow signal of double-current signal, main flow signal is by main flow equivalence subchannel transmission; 22 is secondary flow emitting structural, and for launching the secondary flow signal of double-current signal, secondary flow signal is by secondary flow equivalence subchannel transmission.
As shown in Figure 2, main flow emitting structural mainly comprises: the feedback channel HS-DPCCH of control channel DPCCH and E-DPCCH, data channel E-DPDCH, down high-speed data channel HS-DSCH, the control channel S-E-DPCCH of the high speed data channels in secondary flow.Wherein, the effect of DPCCH is that its transmitting power is adjusted by inner-loop power control and external circule power control for carrying pilot tone and power control commands, can guarantee the mistake piece performance that receiving terminal (NodeB side) receives; The control information (as transformat, RV version (Redundancy Version, redundancy versions) etc.) of E-DPCCH for carrying E-DPDCH; E-DPDCH is used for carrying upstream data.
Secondary flow emitting structural mainly comprises: control channel S-DPCCH, data channel S-E-DPDCH.
Step 102, main flow scheduling grant value corresponding to base station configuration main flow equivalence subchannel, and the secondary flow scheduling grant value corresponding with the ratio calculation secondary flow equivalence subchannel of the signal to noise ratio of secondary flow equivalence subchannel according to the signal to noise ratio of main flow equivalence subchannel.
Base station receives after the double-current signal of UE transmission, according to the actual conditions of main flow equivalence subchannel and secondary flow equivalence subchannel, configures respectively the two corresponding scheduling grant value---main flow scheduling grant value SchG pwith secondary flow scheduling grant value SchG s, so that UE selects the data rate of two equivalent subchannels according to scheduling grant value, and then control the uplink interference lifting that main flow and secondary flow cause.Specific implementation can comprise following steps:
First, be main flow equivalence subchannel arrangements main flow scheduling grant value SchG p;
Secondly, calculate the ratio of the signal to noise ratio of main flow equivalence subchannel and the signal to noise ratio of secondary flow equivalence subchannel;
Finally, with main flow scheduling grant value SchG pfor foundation, according to the ratio of the signal to noise ratio of two equivalent subchannels, determine secondary flow scheduling grant value SchG s.
About base station, determine that the detailed method of the scheduling grant value of two equivalent subchannels refers to the description of subsequent embodiment.
Step 103, user terminal is controlled at the data rate of main flow equivalence subchannel by main flow scheduling grant value in base station, by secondary flow scheduling grant value, controls user terminal at the data rate of secondary flow equivalence subchannel.
After base station configures the scheduling grant value of two equivalent subchannels, just can control the data rate that UE selects two equivalent subchannels by described two scheduling grant values.
For main flow equivalence subchannel, as shown in Figure 3, base station is the data rate at main flow equivalence subchannel according to following steps control UE:
Step 301, obtains the main flow serving grant value ServG of the main flow equivalence subchannel that user terminal safeguards p, the scheduling grant value being configured by base station when UE last time is by base station scheduling.
Particularly, base station can obtain ServG by following two kinds of modes p: a kind of mode is directly from inside of base station, to read the scheduling grant value that be UE configuration last time, and this scheduling grant value is the main flow serving grant value ServG of the current maintenance of UE p; Another kind of mode is according to the data of the UE transmission receiving, to judge the main flow serving grant value ServG of the current maintenance of UE p.
Step 302, calculates SchG pwith ServG pbetween difference.
Step 303, judgement SchG pwith ServG pbetween difference whether exceed the first preset value allowed band, judge whether the difference of the two is greater than the first preset value, then according to judged result execution step 304 or step 305.
Step 304, if SchG pwith ServG pbetween difference be greater than the first preset value, base station in the mode of absolute indices by E-AGCH channel by SchG pbe sent to UE, so that UE is directly according to SchG pcarry out E-TFCI selection, determine the data rate of main flow equivalence subchannel.
Step 305, if SchG pwith ServG pbetween difference be not more than the first preset value, base station is sent control signaling and (is about to SchG to UE by E-RGCH channel pwith respect to ServG psituation of change be sent to UE, control UE according to a kind of adjustment main flow serving grant value ServG in UP, DOWN or tri-kinds of control signals of HOLD p), UE is according to control signal RG padjust ServG p, and approach SchG as far as possible p, and then according to the ServG after adjusting pcarry out E-TFCI selection, determine the data rate of main flow equivalence subchannel.
Because UE side safeguards that having a variable Serving_Grant (being called serving grant value ServG), its implication is the scheduling grant value of UE actual use when carrying out up E-DPDCH transmitting.Therefore, in base station, pass through main flow scheduling grant value SchG pwhile controlling the data rate of UE selection main flow equivalence subchannel, need to first obtain the main flow serving grant value ServG of the current maintenance of UE p, to judge that the mode adopting based on absolute License Value AG (Absolute Grant) controls UE, or adopt the mode based on relative grant value (RelativeGrant, RG) to control UE.
It should be noted that herein, definitely License Value AG is the absolute indices of scheduling grant value SchG, this index value is 5bits, by descending E-AGCH (E-DCH Absolute Grant Channel, E-DCH absolute grant channel, wherein, E-DCH is for strengthening the abbreviation of dedicated channel Enhanced Dedicated Channel) AG is handed down to the UE of appointment, UE can be known the scheduling grant value SchG accordingly with this absolute indices AG by the mode of searching, and upgrade UE and go up the operation License Value of safeguarding, thereby can complete according to the operation License Value after upgrading the selection of data rate.Relative grant value RG is the relative variation of scheduling grant value SchG, it represented this scheduling grant value that is handed down to UE of NodeB than UE at last corresponding HARQ instance (Hybrid Automatic Repeat Request, mixed automatic retransfer request) TTI of process (Transmission Time Interval, the situation of change of the serving grant value of using Transmission Time Interval), descending E-RGCH (E-DCH Relative Grant Channel can be passed through in base station, E-DCH relative authorization channel) UE to appointment issues UP, HOLD or DOWN control signal, UE adjusts the serving grant value ServG of current maintenance according to the control signal receiving, specifically comprise: first according to the serving grant value ServG of current maintenance and control signal, determine adjustment step-length, secondly in conjunction with control signal and according to definite adjustment step-length, serving grant value ServG is adjusted, so that serving grant value ServG approaches scheduling grant value SchG as far as possible.Like this, UE just can complete according to the serving grant value ServG after adjusting the selection of data rate.
UE need to detect NodeB and whether send AG or RG in each TTI, and upgrade serving grant value ServG according to AG or RG, then UE carries out E-TFCI restriction and E-TFCI selection according to the ServG after upgrading, determine the size (TB block size is corresponding with E-TFCI) of transmission block TB, thereby the information such as the code channel number of definite E-DPDCH, modulation system, control to complete base station the process that UE carries out upstream data rate selection.
When base station adopts AG mode to control the data rate of UE selection main flow equivalence subchannel, its specific operation process can be described below:
First, for UE distributes main flow E-RNTI (Radio Network Temporary Identifier);
Secondly, the absolute indices of main flow E-RNTI and main flow scheduling grant value is encoded according to the coded format of E-AGCH channel, and be sent to UE, so that UE selects the data rate of main flow equivalence subchannel.
When base station adopts RG mode to control the data rate of UE selection main flow equivalence subchannel, its specific operation process can be described below:
First, for UE distributes main flow signature (signature);
Secondly, main flow signature and control signal are encoded according to the coded format of E-RGCH channel, and be sent to UE, so that UE selects the data rate of main flow equivalence subchannel.
Because E-AGCH adds by UE ID (referring to E-RNTI herein) CRC the mode of covering to carry out multiplexingly, therefore, for an E-AGCH channel, in each TTI, can only carry an AG schedule information.And E-RGCH is undertaken multiplexingly by different quadrature signature, therefore, E-RGCH can issue relative scheduling grant information (RG) for a plurality of UE in a TTI simultaneously.For this reason, in the embodiment of the present invention, in order to distinguish base station for the major-minor different scheduling grant values of sending out that flow down, the UE that need to be respectively under each UL-MIMO pattern distributes two E-RNTI: main flow E-RNTI and secondary flow E-RNTI, is respectively used to issue the absolute indices (AG of main flow scheduling grant value p) and the absolute indices (AG of secondary flow scheduling grant value s).Similarly, also need to distribute the signature in two E-RGCH for each UE: main flow signature and secondary flow signature, be respectively used to issue and represent SchG pwith respect to ServG pthe control signal (RG of situation of change p) and represent SchG swith respect to ServG sthe control signal (RG of situation of change s).
For secondary flow equivalence subchannel, as shown in Figure 4, base station is the data rate at secondary flow equivalence subchannel according to following steps control UE:
Step 401, obtains the secondary flow serving grant value ServG of the secondary flow equivalence subchannel that user terminal safeguards s, the scheduling grant value of using when UE last time is by base station scheduling.
Similarly, base station also can adopt two kinds of modes mentioning in step 301 to obtain secondary flow serving grant value ServG s, repeat no more herein.
Step 402, calculates SchG swith ServG sbetween difference.
Step 403, judgement SchG swith ServG sbetween difference whether exceed the second preset range, judge whether the difference of the two is greater than the second preset value, then according to judged result execution step 404 or execution step 405.
Step 404, if SchG swith ServG sbetween difference be not more than the second preset value, base station by E-RGCH channel to the UE RG that sends control signaling s, so that UE is according to RG sadjust ServG s, and approach SchG as far as possible s, and then according to the ServG after adjusting scarry out E-TFCI selection, determine the data rate of secondary flow equivalence subchannel.
Step 405, if SchG swith ServG sbetween difference be greater than the second preset value, the judged result of obtaining step 303, the mode of user terminal selecting main flow equivalence sub-channel data rates is controlled in judgement base station, then performs step 406 or execution step 407:
If the data rate that UE selects main flow equivalence subchannel is controlled in the mode sending control signaling in base station, perform step 406, E-AGCH channel is passed through by SchG in the mode of absolute indices in base station sbe sent to UE, so that UE is directly according to SchG scarry out E-TFCI selection, determine the data rate of secondary flow equivalence subchannel.
If the data rate that UE selects main flow equivalence subchannel is controlled in the mode of absolute indices in base station, perform step 407, base station is controlled UE by following two kinds of modes and is carried out E-TFCI selection: a kind of mode is, base station by E-RGCH channel to the UE RG that sends control signaling s, so that UE is according to RG sadjust ServG s, and make ServG sapproach SchG as far as possible s, UE just can be according to the ServG after adjusting like this scarry out E-TFCI selection.Another kind of mode is that E-AGCH channel is passed through by SchG in the mode of absolute indices in base station sbe handed down to UE, it should be noted that herein, because E-AGCH adds by UE_ID (being E-RNTI) mode of covering to carry out multiplexing, therefore, in a TTI, an E-AGCH channel only can carry an AG schedule information, issues scheduling grant value can only to a UE_ID (being E-RNTI).Therefore, in main flow, need to transmit SchG p, secondary flow also needs to transmit SchG stime, need in two TTI, the index of two absolute License Values to be sent to UE respectively.First by E-AGCH by SchG pbe issued to UE, preferentially guarantee the ServG of main flow pbe adjusted to SchG p, then at next TTI again by E-AGCH by SchG sbe issued to UE and adjust ServG s.
Similarly, when base station adopts AG mode to control the data rate of UE selection secondary flow equivalence subchannel, its specific operation process also can be described below:
First, for UE distributes secondary flow E-RNTI;
Secondly, the absolute indices of secondary flow E-RNTI and secondary flow scheduling grant value is encoded according to the coded format of E-AGCH channel, and be sent to UE, so that UE selects the data rate of secondary flow equivalence subchannel.
When base station adopts RG mode to control the data rate of UE selection secondary flow equivalence subchannel, its specific operation process can be described below:
First, for UE distributes secondary flow signature;
Secondly, secondary flow signature and control signal are encoded according to the coded format of E-RGCH channel, and be sent to UE, so that UE selects the data rate of secondary flow equivalence subchannel.
Further, in order to guarantee the consistency of main flow and secondary flow criterion, can make the first preset value equal the second preset value, certainly, also can the two be set respectively according to the practical application of communication system, not make the first preset value and the second preset value not etc., this embodiment of the present invention is not limited.
Below to determining main flow scheduling grant value SchG in step 102 pwith secondary flow scheduling grant value SchG smethod be elaborated.
For main flow scheduling grant value SchG p, be mainly that the mode combining by inner-loop power control and external circule power control realizes, step is as follows:
(1) determine the transmitting power of DPCCH.
Base station receives the signal of UE transmitting, and measures up DPCCH sir value at each time slot, and SIRtar compares with goal-selling, according to comparative result, to UE, sends out TPC order.UE, according to the TPC order receiving, calculates the power control step-length adjustment amount Δ dpcch on TPC_cmd and DPCCH, then according to Δ dpcch, adjusts the transmitting power of DPCCH, so that SIR=SIRtar.By above-mentioned up inner-loop power control, just can guarantee the receptivity that DPCCH surveys at NodeB.But, because there is unsteadiness in real system, the suffered interference of each user is also in real-time variation, and the type of service that user uses is possibility real-time change also, this just causes the required target signal interference ratio SIRtar real-time change of each user, and this just need to pass through the real-time adjustment aim signal interference ratio of external circule power control SIRtar.Therefore, base station need to coordinate up inner-loop power control to adjust the transmitting power of DPCCH by uplink external ring power control.
Certainly, above-mentionedly by inner-loop power control, adjust DPCCH transmitting power should to take the Initial Trans of knowing DPCCH be prerequisite, about DPCCH Initial Trans, can by RRC, be set according to 3GPP TS25214 agreement, be not described in detail herein.
(2) the power bias upper limit-main flow scheduling grant value SchG of the relative DPCCH of configuration E-DPDCH p.
Because determined the transmission power level that guarantees DPCCH receptivity in step (1), the transmitting power of E-DPCCH and the relative DPCCH of HS-DPCCH is all substantially constant, and be configured by RRC, meanwhile, again can be according to SchG pdetermine the transmission power level of E-DPDCH, therefore, this is with regard to the power division value on clear and definite main flow equivalence subchannel.
For secondary flow scheduling grant value SchG s, mainly by adaptive mode, realize, with main flow scheduling grant value SchG pfor foundation, according to the mass discrepancy (being the ratio of signal to noise ratio) between main flow equivalence subchannel and secondary flow equivalence subchannel, calculate secondary flow scheduling grant value SchG s, step is as follows:
Step 501, the ratio of the signal to noise ratio of calculating main flow equivalence subchannel and secondary flow equivalence subchannel.
Base station is according to the guidance frequency of the dominant pilot of the upper carrying of DPCCH and the upper carrying of S-DPCCH, the respectively signal to noise ratio (SNR to the DPCCH channel at main flow place dPCCH) and the signal to noise ratio (SNR of the S-DPCCH channel at secondary flow place s-DPCCH) estimate.Can adopt following prior art to carry out signal-to-noise ratio (SNR) estimation: because the pilot frequency information in DPCCH and S-DPCCH is known array, base station can obtain actual channel according to receiving symbol like this, and then actual channel is carried out to equilibrium treatment just can obtain equivalent subchannel.Further, because S-DPCCH may have a certain bias or ratio value (being assumed to be K) with respect to the transmitting power of DPCCH, and suppose that total E-DPDCH and total S-E-DPDCH transmitting power are identical.Now, can obtain mainstream data channel E-DPDCH signal to noise ratio snr psignal to noise ratio snr with secondary flow data channel S-E-DPDCH sbetween ratio:
SNR s/SNR p＝(1/K)*(SNR S-DPCCH/SNR DPCCH)。
Step 502, the S-E-DPDCH on calculating secondary flow equivalence subchannel and the power ratio A of the DPCCH on main flow equivalence subchannel sed 2:
A sed 2=A ped 2* SNR s/ SNR p; Wherein, A ped 2for SchG pcorresponding E-DPDCH and the power ratio of DPCCH.
Step 503, the power ratio A of selection and S-E-DPDCH and DPCCH sed 2corresponding scheduling grant value is as secondary flow scheduling grant value SchG s.
So far, just completed main flow scheduling grant value SchG pwith secondary flow scheduling grant value SchG ssetting up procedure.
In order to improve the antijamming capability of system, guarantee the reliability of UE and inter base station communication, the embodiment of the present invention need to rationally be set the transmission block size of main flow equivalence subchannel and secondary flow equivalence subchannel, to guarantee that receiving terminal has acceptable error performance:
For main flow equivalence subchannel, can adjust by up inner-loop power control and uplink external ring power control the power of DPCCH, and according to SchG pthe transmitting power of distributing E-DPDCH, can also make UE according to SchG pdetermine the TB block size of E-DPDCH carrying, also just determined the upstream data rate of UE at E-DPDCH.
For secondary flow equivalence subchannel, if adopt the method identical with main flow equivalence subchannel, by power control, realize the object of data dispatching speed, the waste of UE transmitting power can be caused first, moreover extra power control signaling need to be introduced.Therefore, the embodiment of the present invention adopts rate adaptation mode by calculating secondary flow scheduling grant value SchG smode, determine the TB block size of S-E-DPDCH carrying, also just determined the upstream data rate of UE at S-E-DPDCH.With this, guarantee the antijamming capability of secondary flow equivalence subchannel, to realizing main flow, two close even identical objects of equivalent subchannel error performance of secondary flow.
It should be noted that, the UL-MIMO emission mode that UE adopts pilot tone precoding adopts the mode (E-DPDCH equates with S-E-DPDCH transmitting power) of data channel constant power during to base station transmitted signal herein.
Correspondingly, the embodiment of the present invention also provides a kind of device of scheduling user terminal upstream data rate, and as shown in Figure 6, the structural representation for device, specifically comprises:
Receiving element 601, the double-current signal that adopts UL MIMO emission mode to send for receiving user terminal, the main flow signal in double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in double-current signal is in secondary flow equivalence subchannel transmission;
Main flow scheduling grant value dispensing unit 602, for configuring main flow scheduling grant value corresponding to main flow equivalence subchannel;
Secondary flow scheduling grant value computing unit 603, for the secondary flow scheduling grant value corresponding with the ratio calculation secondary flow equivalence subchannel of the signal to noise ratio of secondary flow equivalence subchannel according to main flow equivalence subchannel;
Mainstream data speed control unit 604, for controlling user terminal at the data rate of main flow equivalence subchannel by main flow scheduling grant value;
Secondary flow data rate control unit 605, for controlling user terminal at the data rate of secondary flow equivalence subchannel by secondary flow scheduling grant value.
The embodiment of the present invention, in order to make the error performance of main flow equivalence subchannel and secondary flow equivalence subchannel reach close even identical level, is carried out differentiated treatment to the upstream rate of the upstream data rate of main flow equivalence subchannel and secondary flow equivalence subchannel respectively.For main flow equivalence subchannel, the transmitting power of adjusting DPCCH is controlled in base station by power, and according to the power bias upper limit SchG of the relative DPCCH of E-DPDCH pvalue is determined transmitting power for E-DPDCH, and controls UE according to SchG pdetermine the data rate of main flow equivalence subchannel uplink.For secondary flow equivalence subchannel, base station adopts rate adaptation mode to guarantee the antijamming capability of secondary flow equivalence subchannel, take main flow scheduling grant value as according to SchG p, according to the mass discrepancy between main flow equivalence subchannel and secondary flow equivalence subchannel, determine secondary flow scheduling grant value SchG s, and then control UE according to SchG sdetermine the data rate of main flow equivalence subchannel uplink.
As shown in Figure 7, the structural representation for the secondary flow scheduling grant value computing unit in the embodiment of the present invention, specifically comprises:
Signal to noise ratio ratio calculation unit 701, for calculating the signal to noise ratio snr of main flow equivalence subchannel psignal to noise ratio snr with secondary flow equivalence subchannel s;
Particularly, signal to noise ratio ratio calculation unit is according to following process work: the signal to noise ratio of first estimating respectively DPCCH and S-DPCCH (is designated as SNR dPCCHand SNR s-DPCCH), then according to S-DPCCH power ratio (the being called again power bias) K with respect to DPCCH, calculate the signal to noise ratio snr of the data channel E-DPDCH on main flow equivalence subchannel pwith the data channel S-E-DPDCH signal to noise ratio snr on secondary flow equivalence subchannel sbetween ratio: SNR s/ SNR p=(1/K) * (SNR s-DPCCH/ SNR dPCCH).
Power ratio computing unit 702, the S-E-DPDCH on calculating secondary flow equivalence subchannel and the power ratio A of the DPCCH on main flow equivalence subchannel sed 2: A sed 2=A ped 2* SNR s/ SNR p; Wherein, A ped 2for SchG pcorresponding E-DPDCH and the power ratio of DPCCH;
Secondary flow scheduling grant value is chosen unit 703, for selecting the power ratio A with S-E-DPDCH and DPCCH sed 2corresponding scheduling grant value is as secondary flow scheduling grant value.
As shown in Figure 8, the structural representation for the mainstream data speed control unit in the embodiment of the present invention, specifically comprises:
Main flow serving grant value acquiring unit 801, for obtaining the main flow serving grant value of the main flow equivalence subchannel of user terminal maintenance;
The first computing unit 802, for calculating the difference between main flow scheduling grant value and main flow serving grant value;
The first control unit 803, while being greater than the first preset value for the difference of calculating at the first computing unit, mode with absolute indices is sent to user terminal by main flow scheduling grant value, so that user terminal is selected the data rate of main flow equivalence subchannel according to main flow scheduling grant value;
The second control unit 804, while being not more than the first preset value for the difference of calculating at the first computing unit, to user terminal, send control signaling, so that user terminal is adjusted main flow serving grant value according to control signal, and according to the main flow serving grant value after adjusting, select the data rate of main flow equivalence subchannel.
UE side is respectively E-DPDCH and S-E-DPDCH maintenance service License Value ServG pand ServG sbefore the data rate of base station on the E-DPDCH that controls UE selection main flow, first obtain the serving grant value that UE safeguards, then according to the relation between the scheduling grant value of current serving grant value and configuration, select to adopt the mode based on absolute License Value AG, or the mode based on relative grant value RG is controlled UE.
When the difference of calculating at the first computing unit is greater than the first preset value, adopts AG mode to control UE and carry out E-TFCI selection, the first control unit specifically comprises:
Main flow E-RNTI allocation units, are used to user terminal to distribute main flow E-RNTI;
The first coding unit, for the absolute indices of main flow E-RNTI and main flow scheduling grant value is encoded according to the coded format of E-AGCH channel, and is sent to user terminal, so that the data rate of user terminal selecting main flow equivalence subchannel.
When the difference of calculating at the first computing unit is not more than the first preset value, adopts RG mode to control UE and carry out E-TFCI selection, the second control unit comprises:
Main flow signature allocation units, are used to user terminal to distribute main flow signature;
The second coding unit, for main flow signature and control signal are encoded according to the coded format of E-RGCH channel, and is sent to user terminal, so that the data rate of user terminal selecting main flow equivalence subchannel.
As shown in Figure 9, the structural representation for the secondary flow data rate control unit in the embodiment of the present invention, specifically comprises:
Secondary flow serving grant value acquiring unit 901, for obtaining the secondary flow serving grant value of the secondary flow equivalence subchannel of user terminal maintenance;
The second computing unit 902, for calculating the difference between secondary flow scheduling grant value and secondary flow serving grant value;
The 3rd control unit 903, while being not more than the second preset value for the difference of calculating at the second computing unit, to user terminal, send control signaling, so that user terminal is adjusted secondary flow serving grant value according to control signal, and according to the secondary flow serving grant value after adjusting, select the data rate of secondary flow equivalence subchannel;
The 4th control unit 904, while being greater than the second preset value for the difference of calculating at the second computing unit, judgement mainstream data speed control unit is controlled the mode of user terminal selecting main flow equivalence sub-channel data rates:
If mainstream data speed control unit is controlled the data rate of user terminal selecting main flow equivalence subchannel in the mode sending control signaling, the 4th control unit is sent to user terminal in the mode of absolute indices by secondary flow scheduling grant value, so that user terminal is selected the data rate of secondary flow equivalence subchannel according to secondary flow scheduling grant value;
If mainstream data speed control unit is controlled the data rate of user terminal selecting main flow equivalence subchannel in the mode of absolute indices, the 4th control unit sends control signaling to user terminal, so that user terminal is adjusted secondary flow serving grant value according to control signal, and according to the secondary flow serving grant value after adjusting, select the data rate of secondary flow equivalence subchannel; Or the 4th control unit mode with absolute indices in next Transmission Time Interval is sent to user terminal by secondary flow scheduling grant value, so that user terminal is selected the data rate of secondary flow equivalence subchannel according to secondary flow scheduling grant value.
Similarly, base station, before the data rate of S-E-DPDCH of controlling UE selection secondary flow, also needs to obtain the serving grant value ServG of the current maintenance of UE s, and then select to control with AG mode or RG mode the selection that UE carries out data rate.In addition it should be noted that, if there is SchG pwith ServG pdiffer greatly, and SchG swith ServG swhile differing also very large situation, need the preferential data rate that guarantees main flow E-DPDCH, can realize by following two kinds of modes: a kind of mode is, base station by E-AGCH by SchG pbe issued to and specify UE, by E-RGCH by RG sbe issued to this appointment UE; Another kind of mode is, by E-AGCH by SchG pbe issued to and specify UE, then in next TTI again by E-AGCH by SchG sbe issued to this appointment UE.
Further, when the difference of calculating at the second computing unit is greater than the second preset value, and adopt AG mode to control UE to carry out E-TFCI while selecting, the 3rd control unit specifically comprises:
Secondary flow E-RNTI allocation units, are used to user terminal to distribute secondary flow E-RNTI;
The 3rd coding unit, for the absolute indices of secondary flow E-RNTI and secondary flow scheduling grant value is encoded according to the coded format of E-AGCH channel, and is sent to user terminal, so that the data rate of user terminal selecting secondary flow equivalence subchannel.
When the difference of calculating at the second computing unit is greater than the second preset value, and adopt RG mode to control UE to carry out E-TFCI while selecting, the 4th control unit specifically comprises:
Secondary flow signature allocation units, are used to user terminal to distribute secondary flow signature;
The 4th coding unit, for secondary flow signature and control signal are encoded according to the coded format of E-RGCH channel, and is sent to user terminal, so that the data rate of user terminal selecting secondary flow equivalence subchannel.
Correspondingly, the embodiment of the present invention also provides a kind of system of scheduling user terminal upstream data rate, specifically comprises:
User terminal, for adopting UL MIMO emission mode to send double-current signal to base station, the main flow signal in double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in double-current signal is in secondary flow equivalence subchannel transmission;
Base station, for after receiving the double-current signal of user terminal transmission, main flow scheduling grant value corresponding to configuration main flow equivalence subchannel, and the secondary flow scheduling grant value corresponding with the ratio calculation secondary flow equivalence subchannel of the signal to noise ratio of secondary flow equivalence subchannel according to main flow equivalence subchannel; And then control user terminal at the data rate of main flow equivalence subchannel by main flow scheduling grant value, by secondary flow scheduling grant value, control user terminal at the data rate of secondary flow equivalence subchannel;
Described user terminal, also, for select the data rate of main flow equivalence subchannel according to main flow scheduling grant value, selects the data rate of secondary flow equivalence subchannel according to secondary flow scheduling grant value.
Base station and user terminal cooperatively interact, and the technical scheme that adopts the embodiment of the present invention to provide just can effectively guarantee the error performance of system under UL MIMO emission mode.
The present invention program can describe in the general context of the computer executable instructions of being carried out by computer, for example program unit.Usually, program unit comprises the routine carrying out particular task or realize particular abstract data type, program, object, assembly, data structure etc.Also can in distributed computing environment (DCE), put into practice the present invention program, in these distributed computing environment (DCE), by the teleprocessing equipment being connected by communication network, be executed the task.In distributed computing environment (DCE), program unit can be arranged in the local and remote computer-readable storage medium that comprises memory device.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, each embodiment stresses is the difference with other embodiment.Especially, for device and system embodiment, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.Device described above and system embodiment are only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
Above the embodiment of the present invention is described in detail, has applied embodiment herein the present invention is set forth, the explanation of above embodiment is just for helping to understand method and apparatus of the present invention; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.

Claims (12)

1. a method for scheduling user terminal upstream data rate, is characterized in that, described method comprises:
Base station receives the double-current signal that user terminal adopts up multiple-input and multiple-output UL MIMO emission mode to send, and the main flow signal in described double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in described double-current signal is in secondary flow equivalence subchannel transmission; Described main flow signal is identical with the data channel transmitting power of described secondary flow signal;
Main flow scheduling grant value corresponding to base station configuration main flow equivalence subchannel, and according to secondary flow scheduling grant value corresponding to the equivalent subchannel of secondary flow described in the ratio calculation of the signal to noise ratio of described main flow equivalence subchannel and the signal to noise ratio of described secondary flow equivalence subchannel;
User terminal is controlled at the data rate of main flow equivalence subchannel by described main flow scheduling grant value in base station, by described secondary flow scheduling grant value, controls user terminal at the data rate of secondary flow equivalence subchannel.
2. method according to claim 1, is characterized in that,
Describedly according to secondary flow scheduling grant value corresponding to the equivalent subchannel of secondary flow described in the ratio calculation of the signal to noise ratio of described main flow equivalence subchannel and the signal to noise ratio of described secondary flow equivalence subchannel, comprise:
Calculate the ratio SNR of the signal to noise ratio of main flow equivalence subchannel and the signal to noise ratio of secondary flow equivalence subchannel p/ SNR s;
Secondary flow on calculating secondary flow equivalence subchannel strengthens the power ratio A of the special used for physical control channel DPCCH on Dedicated Physical Data Channel S-E-DPDCH and main flow equivalence subchannel sed 2:
A sed 2=A ped 2* SNR s/ SNR p; Wherein, A ped 2power ratio for the DPCCH on the enhancing Dedicated Physical Data Channel E-DPDCH on main flow equivalence subchannel and main flow equivalence subchannel;
Select and described A sed 2corresponding scheduling grant value is as secondary flow scheduling grant value.
3. method according to claim 1 and 2, is characterized in that,
Described base station is controlled user terminal by main flow scheduling grant value and is comprised at the data rate of main flow equivalence subchannel:
Obtain the main flow serving grant value of the main flow equivalence subchannel of user terminal maintenance;
Calculate the difference between described main flow scheduling grant value and described main flow serving grant value; If the difference between described main flow scheduling grant value and main flow serving grant value is greater than the first preset value, the mode with absolute indices is sent to user terminal by described main flow scheduling grant value, so that described user terminal is selected the data rate of main flow equivalence subchannel according to described main flow scheduling grant value; Otherwise, to user terminal, send control signaling, so that described user terminal is adjusted described main flow serving grant value according to described control signal, and according to the data rate of the main flow serving grant value selection main flow equivalence subchannel after adjusting.
4. method according to claim 3, is characterized in that, described base station is controlled user terminal by described secondary flow scheduling grant value and comprised at the data rate of secondary flow equivalence subchannel:
Obtain the secondary flow serving grant value of the secondary flow equivalence subchannel of user terminal maintenance;
Calculate the difference between described secondary flow scheduling grant value and described secondary flow serving grant value; If the difference between described secondary flow scheduling grant value and secondary flow serving grant value is not more than the second preset value, to user terminal, send control signaling, so that described user terminal is adjusted described secondary flow serving grant value according to described control signal, and according to the data rate of the secondary flow serving grant value selection secondary flow equivalence subchannel after adjusting; Otherwise the mode of user terminal selecting main flow equivalence sub-channel data rates is controlled in judgement base station;
If the data rate of user terminal selecting main flow equivalence subchannel is controlled in base station in the mode sending control signaling, base station is sent to user terminal in the mode of absolute indices by secondary flow scheduling grant value, so that user terminal is selected the data rate of secondary flow equivalence subchannel according to described secondary flow scheduling grant value;
If the data rate of user terminal selecting main flow equivalence subchannel is controlled in base station in the mode of absolute indices, base station sends control signaling to user terminal, so that described user terminal is adjusted described secondary flow serving grant value according to described control signal, and according to the data rate of the secondary flow serving grant value selection secondary flow equivalence subchannel after adjusting; Or base station mode with absolute indices in next Transmission Time Interval is sent to user terminal by described secondary flow scheduling grant value, so that user terminal is selected the data rate of secondary flow equivalence subchannel according to described secondary flow scheduling grant value.
5. method according to claim 4, is characterized in that,
The data rate that user terminal selecting main flow equivalence subchannel is controlled in the mode of absolute indices in described base station comprises:
For described user terminal distributes main flow Radio Network Temporary Identifier E-RNTI;
The absolute indices of described main flow E-RNTI and described main flow scheduling grant value is encoded according to the coded format that strengthens dedicated channel absolute grant channel E-AGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting main flow equivalence subchannel;
The data rate that user terminal selecting secondary flow equivalence subchannel is controlled in the mode of absolute indices in described base station comprises:
For described user terminal distributes secondary flow E-RNTI;
The absolute indices of described secondary flow E-RNTI and described secondary flow scheduling grant value is encoded according to the coded format of E-AGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting secondary flow equivalence subchannel.
6. method according to claim 4, is characterized in that,
The data rate that user terminal selecting main flow equivalence subchannel is controlled in the mode sending control signaling in described base station comprises:
For described user terminal distributes main flow signature signature;
Described main flow signature and described control signal are encoded according to the coded format that strengthens dedicated channel relative authorization channel E-RGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting main flow equivalence subchannel;
The data rate that user terminal selecting secondary flow equivalence subchannel is controlled in the mode sending control signaling in described base station comprises:
For described user terminal distributes secondary flow signature;
Described secondary flow signature and described control signal are encoded according to the coded format of E-RGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting secondary flow equivalence subchannel.
7. a device for scheduling user terminal upstream data rate, is characterized in that, described device comprises:
Receiving element, the double-current signal that adopts up multiple-input and multiple-output UL MIMO emission mode to send for receiving user terminal, main flow signal in described double-current signal is in main flow equivalence subchannel transmission, and the secondary flow signal in described double-current signal is in secondary flow equivalence subchannel transmission; Described main flow signal is identical with the data channel transmitting power of described secondary flow signal;
Main flow scheduling grant value dispensing unit, for configuring main flow scheduling grant value corresponding to main flow equivalence subchannel;
Secondary flow scheduling grant value computing unit, for according to secondary flow scheduling grant value corresponding to the equivalent subchannel of secondary flow described in the ratio calculation of the signal to noise ratio of described main flow equivalence subchannel and the signal to noise ratio of described secondary flow equivalence subchannel;
Mainstream data speed control unit, for controlling user terminal at the data rate of main flow equivalence subchannel by described main flow scheduling grant value;
Secondary flow data rate control unit, for controlling user terminal at the data rate of secondary flow equivalence subchannel by described secondary flow scheduling grant value.
8. device according to claim 7, is characterized in that, described secondary flow scheduling grant value computing unit comprises:
Signal to noise ratio ratio calculation unit, for calculating the signal to noise ratio snr of main flow equivalence subchannel psignal to noise ratio snr with secondary flow equivalence subchannel s;
Power ratio computing unit, the secondary flow on calculating secondary flow equivalence subchannel strengthens the power ratio A of the special used for physical control channel DPCCH on Dedicated Physical Data Channel S-E-DPDCH and main flow equivalence subchannel sed 2: A sed 2=A ped 2* SNR s/ SNR p; Wherein, A ped 2power ratio for the DPCCH on the E-DPDCH on main flow equivalence subchannel and main flow equivalence subchannel;
Secondary flow scheduling grant value is chosen unit, for selecting and described A sed 2corresponding scheduling grant value is as secondary flow scheduling grant value.
9. according to the device described in claim 7 or 8, it is characterized in that, described mainstream data speed control unit comprises:
Main flow serving grant value acquiring unit, for obtaining the main flow serving grant value of the main flow equivalence subchannel of user terminal maintenance;
The first computing unit, for calculating the difference between described main flow scheduling grant value and described main flow serving grant value;
The first control unit, while being greater than the first preset value for the difference of calculating at described the first computing unit, mode with absolute indices is sent to user terminal by described main flow scheduling grant value, so that described user terminal is selected the data rate of main flow equivalence subchannel according to described main flow scheduling grant value;
The second control unit, while being not more than the first preset value for the difference of calculating at described the first computing unit, to user terminal, send control signaling, so that described user terminal is adjusted described main flow serving grant value according to described control signal, and according to the data rate of the main flow serving grant value selection main flow equivalence subchannel after adjusting.
10. device according to claim 9, is characterized in that,
Described the first control unit comprises:
Main flow Radio Network Temporary Identifier E-RNTI allocation units, are used to described user terminal to distribute main flow E-RNTI;
The first coding unit, for the absolute indices of described main flow E-RNTI and described main flow scheduling grant value is encoded according to the coded format that strengthens dedicated channel absolute grant channel E-AGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting main flow equivalence subchannel;
Described the second control unit comprises:
Main flow signature signature allocation units, are used to described user terminal to distribute main flow signature;
The second coding unit, for described main flow signature and described control signal are encoded according to the coded format that strengthens dedicated channel relative authorization channel E-RGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting main flow equivalence subchannel.
11. devices according to claim 9, is characterized in that, described secondary flow data rate control unit comprises:
Secondary flow serving grant value acquiring unit, for obtaining the secondary flow serving grant value of the secondary flow equivalence subchannel of user terminal maintenance;
The second computing unit, for calculating the difference between described secondary flow scheduling grant value and described secondary flow serving grant value;
The 3rd control unit, while being not more than the second preset value for the difference of calculating at described the second computing unit, to user terminal, send control signaling, so that described user terminal is adjusted described secondary flow serving grant value according to described control signal, and according to the data rate of the secondary flow serving grant value selection secondary flow equivalence subchannel after adjusting;
The 4th control unit, while being greater than the second preset value for the difference of calculating at described the second computing unit, judges the mode of described mainstream data speed control unit control user terminal selecting main flow equivalence sub-channel data rates;
If described mainstream data speed control unit is controlled the data rate of user terminal selecting main flow equivalence subchannel in the mode sending control signaling, described the 4th control unit is sent to user terminal in the mode of absolute indices by secondary flow scheduling grant value, so that user terminal is selected the data rate of secondary flow equivalence subchannel according to described secondary flow scheduling grant value;
If described mainstream data speed control unit is controlled the data rate of user terminal selecting main flow equivalence subchannel in the mode of absolute indices, described the 4th control unit sends control signaling to user terminal, so that described user terminal is adjusted described secondary flow serving grant value according to described control signal, and according to the data rate of the secondary flow serving grant value selection secondary flow equivalence subchannel after adjusting; Or described the 4th control unit mode with absolute indices in next Transmission Time Interval is sent to user terminal by described secondary flow scheduling grant value, so that user terminal is selected the data rate of secondary flow equivalence subchannel according to described secondary flow scheduling grant value.
12. according to the device described in claim 10 or 11, it is characterized in that,
Described the 3rd control unit comprises:
Secondary flow E-RNTI allocation units, are used to described user terminal to distribute secondary flow E-RNTI;
The 3rd coding unit, for the absolute indices of described secondary flow E-RNTI and described secondary flow scheduling grant value is encoded according to the coded format of E-AGCH channel, and be sent to described user terminal, so that the data rate of described user terminal selecting secondary flow equivalence subchannel;
Described the 4th control unit comprises:
Secondary flow signature allocation units, are used to described user terminal to distribute secondary flow signature;
The 4th coding unit, for described secondary flow signature and described control signal are encoded according to the coded format of E-RGCH channel, and is sent to described user terminal, so that the data rate of described user terminal selecting secondary flow equivalence subchannel.
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