CN102647796B - Method and device for upstream resource allocation - Google Patents

Method and device for upstream resource allocation Download PDF

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Publication number
CN102647796B
CN102647796B CN201110042018.4A CN201110042018A CN102647796B CN 102647796 B CN102647796 B CN 102647796B CN 201110042018 A CN201110042018 A CN 201110042018A CN 102647796 B CN102647796 B CN 102647796B
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sinr
terminal
base station
power
configuration
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CN102647796A (en
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吴继文
刘巧艳
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2011/074727 priority patent/WO2012113183A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365—Power headroom reporting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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

Abstract

The invention provides a method and a device for upstream resource allocation. The method comprises the following steps of: determining a terminal is in a power limited state by a base station, wherein the power limited state means that an expected transmitting power of the terminal is beyond a maximum transmitting power of the terminal, and the condition of a scheduled BLER (Block Error Ratio) is met by the expected transmitting power; determining a SingleRB_SINR (Single Resource Block_Signal Interference Noise Ratio) by the base station by using an SINR and a PHR (Power Headroom Report) reported by the terminal; and determining the upstream resource allocation by the base station by using the SingleRB_SINR. According to the method and the device for the upstream resource allocation, provided by the invention, the utilization rate of an upstream resource is increased.

Description

Ascending resource collocation method and device
Technical field
The present invention relates to the communications field, in particular to a kind of ascending resource collocation method and device.
Background technology
Along with the development of wireless communication technology, OFDM (Orthogonal Frequency Division Multiplexing, referred to as OFDM) etc. New technical use at wireless broadband access system (as micro-wave access to global intercommunication (Worldwide Interoperability for Microwave Access, referred to as WiMAX) in, the access speed of radio communication is risen to 100Mbit/s magnitude, and these wireless broadband access systems strengthen the support to terminal mobility, align the legacy cellular mobile communication system being in 3G period of expansion and define challenge.
Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) as Wideband Code Division Multiple Access (WCDMA) access (Wideband Code Division Multiple Access, referred to as WCDMA) and Time division multiple access (Time Division-Synchronous Code Division Multiple Access, referred to as TD-SCDMA) these two systems carry out the Main Tissues of International standardization work, for accessing (Code Division Multiple Access based on code division multiple access, referred to as CDMA) development of the G mobile communication of technology played important effect, in November, 2004, 3GPP have passed about 3G Long Term Evolution (Long Term Evolution, LTE) project verification work.The target of 3G LTE is: the power system capacity of higher data rate, lower time delay, improvement and coverage, and lower cost.
In LTE system resource, Radio Resource comprises subcarrier and transmitted power, due in modulation technique, Multiple Access scheme and the network architecture LTE system be all different from before cell mobile communication systems, therefore, its Resourse Distribute has the feature different from conventional wireless Resourse Distribute, and thereby produces a series of problem needing to solve.LTE system allocation of radio resources has following characteristics: need to consider presence of intercell interference, the distributed network architecture that dynamic subchannel distributes and simplifies.
In LTE system, allocation of radio resources mechanism has the feature different from traditional approach, wherein focuses on Dynamic Resource Allocation for Multimedia, controls two parts comprising scheduling and power.
Ascending wireless resource distribution method mechanism in correlation technique, based on the type of service of terminal, and channel quality is dispatched, cause owing to expecting that transmitting power exceeds actual maximum transmission power and limits the error rate BLER rising and throughput degradation that cause, resource utilization is lower.
Cause code check to raise and throughput degradation for ascending wireless resource distribution method in correlation technique, the problem that resource utilization is lower, not yet proposes effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of ascending resource collocation method and device, causes the error rate (BLER) to raise and throughput degradation, the lower problem of resource utilization so that solve ascending wireless resource distribution method in above-mentioned correlation technique.
According to an aspect of the present invention, provide a kind of ascending resource collocation method, comprise: base station determines that terminal is in power limited conditions, wherein, power limited conditions refers to that terminal ensures the maximum transmission power of expectation transmitting power beyond terminal of BLER performance; Base station uses the power headroom (Power Headroom Report, referred to as PHR) of SINR and terminal to report to determine the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block; Base station uses the configuration of the business demand determination ascending resource of SingleRB_SINR and terminal.
Further, base station determines that terminal is in power limited conditions and comprises: base station uses the number determination terminal of Resource Block RB corresponding to power headroom PHR and PHR of Signal to Interference plus Noise Ratio SINR, the preallocated number of resource blocks of terminal bearer service, terminal to report to be in power limited conditions.
Further, base station uses the PHR of SINR and terminal to report to determine that the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block comprises: base station uses following formula to determine the Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ of single Resource Block 1, wherein, SINR is the value measuring the Signal to Interference plus Noise Ratio obtained, and comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is the influence amount measuring SINR Time Bandwidth, δ 1for the PHR that SINR is corresponding, and p maxfor the maximum transmission power that terminal allows, and P p_PUSCHfor the expectation transmitting power of terminal, P p_PUSCH(i)=10log 10(M0)+P o_Pusch+ α PL+ Δ tFi ()+f (i), M0 are the current RB number needing to send of terminal, P o_Puschfor the power parameter of base station sets, accept power spectral density for the terminal identifying expectation, Δ tFi () is closed-loop power control parameter, be 0, f (i) be closed-loop power control parameter in open loop power control duration, at i-th frame of open loop power control duration to be 0, i be Physical Uplink Shared Channel PUSCH.
Further, base station uses SingleRB_SINR to determine that the configuration of ascending resource comprises: base station uses the business demand of SingleRB_SINR and terminal to determine the first configuration of up configuration by pre-defined algorithm; Whether the number of the Resource Block RB that base station judges needed for the first configuration is greater than the maximum RB number of system assignment; If judged result is yes, the maximum RB number of system assignment is used to determine that the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration; If judged result is no, the number of Resource Block RB in the first configuration is used to determine that the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration.
Further, pre-defined algorithm comprises one of following: the throughput of the base station using the business demand of the PHR of SINR measured value, terminal to report, demodulation ability grade and terminal to determine reaches maximum; The availability of frequency spectrum of the terminal using the business demand of SingleRB_SINR and terminal to determine reaches maximum.
According to a further aspect in the invention, provide a kind of ascending resource inking device, comprise: the first determination module, for determining that terminal is in power limited conditions, wherein, power limited conditions refers to the maximum transmission power of expectation transmitting power beyond terminal of terminal, expects that transmitting power meets the condition of predetermined error rate BLER; Second determination module, for the Signal to Interference plus Noise Ratio SingleRB_SINR using the PHR of SINR and terminal to report to determine single Resource Block; 3rd determination module, for the configuration using SingleRB_SINR to determine ascending resource.
Further, the first determination module, for using the Signal to Interference plus Noise Ratio SINR of terminal to report and the preallocated number of resource blocks of terminal bearer service, the number determination terminal of Resource Block RB corresponding to power headroom PHR and PHR of terminal to report is in power limited conditions.
Further, the second determination module, for the Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ using following formula to determine single Resource Block 1, wherein, SINR is the value measuring the Signal to Interference plus Noise Ratio obtained, and comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is the influence amount measuring SINR Time Bandwidth, δ 1for the PHR that SINR is corresponding, and p maxfor the maximum transmission power that terminal allows, and P p_PUSCHfor the expectation transmitting power of terminal, P p_PUSCH(i)=10log 10(M0)+P o_Pusch+ α PL+ Δ tFi ()+f (i), M0 are the current RB number needing to send of terminal, P o_Puschfor the power parameter of base station sets, accept power spectral density for the terminal identifying expectation, Δ tFi () is closed-loop power control parameter, be 0, f (i) be closed-loop power control parameter in open loop power control duration, and at i-th frame of open loop power control duration to be 0, i be PUSCH.
Further, the 3rd determination module comprises: the 4th determination module, determines the first configuration of up configuration for using the business demand of SingleRB_SINR and terminal by pre-defined algorithm; For base station, judge module, judges whether the number of Resource Block RB needed for the first configuration is greater than the maximum RB number of system assignment; First processing module, during for judged result for being, uses the maximum RB number of system assignment to determine that the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration; Second processing module, when being no for judged result, uses the number of Resource Block RB in the first configuration to determine that the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration.
Further, pre-defined algorithm comprises one of following: the throughput of the base station using the business demand of the PHR of SINR measured value, terminal to report, demodulation ability grade and terminal to determine reaches maximum; The availability of frequency spectrum of the terminal using the business demand of SingleRB_SINR and terminal to determine reaches maximum.
By the present invention, adopt base station to determine that terminal is in power limited conditions, wherein, power limited conditions refers to the maximum transmission power of expectation transmitting power beyond terminal of terminal, expects that transmitting power meets the condition of predetermined error rate BLER; Base station uses the PHR of SINR and terminal to report to determine single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR; Base station uses SingleRB_SINR to determine the configuration of ascending resource, solves ascending wireless resource distribution method in correlation technique and causes code check to raise and throughput degradation, the problem that resource utilization is lower, and then reach the effect improving resource utilization.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the ascending resource collocation method according to the embodiment of the present invention;
Fig. 2 is the flow chart of the uplink resource allocating method in conjunction with power information according to the embodiment of the present invention;
Fig. 3 is the structured flowchart of the ascending resource inking device according to the embodiment of the present invention; And
Fig. 4 is the preferred structured flowchart of the ascending resource inking device according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Present embodiments provide a kind of ascending resource collocation method, Fig. 1 is the flow chart of the uplink resource allocating method according to the embodiment of the present invention, and as shown in Figure 1, the method comprises:
Step S102: base station determines that terminal is in power limited conditions, wherein, power limited conditions refers to the maximum transmission power of expectation transmitting power beyond terminal of terminal, expects that transmitting power meets the condition of BLER;
Step S104: base station uses the power headroom (PHR) of SINR and terminal to report to determine the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block;
Step S106: base station uses SingleRB_SINR to determine the configuration of ascending resource.
Preferably, below a preferred implementation of step S102 is described.Base station uses the Signal to Interference plus Noise Ratio SINR of terminal to report and the preallocated number of resource blocks of described terminal bearer service, the power headroom PHR value of terminal to report, the number of RB that PHR is corresponding, determines that terminal is in power limited conditions.
Preferably, below a preferred implementation of step S104 is described.Base station uses following formula to determine single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ 1, wherein, SINR is the value measuring the Signal to Interference plus Noise Ratio obtained, and comprising the adjustment amount of adaptive modulation and coding (AMC), Δ SINR is the influence amount measuring SINR Time Bandwidth, δ 1for the PHR that SINR is corresponding, and p maxfor the maximum transmission power that terminal allows, and P p_PUSCHfor the expectation transmitting power of terminal, P p_PUSCH(i)=10log 10(M0)+P o_Pusch+ α PL+ Δ tFi ()+f (i), M0 are the current RB number needing to send of terminal, P o_Puschfor the power parameter of base station sets, accept power spectral density for the terminal identifying expectation, Δ tFi () is closed-loop power control parameter, be 0, f (i) be closed-loop power control parameter in open loop power control duration, at i-th frame of open loop power control duration to be 0, i be Physical Uplink Shared Channel PUSCH.
Preferably, below a preferred implementation of step S106 is described.Base station uses the business demand of SingleRB_SINR and terminal to determine the first configuration of up configuration by pre-defined algorithm; Whether the number of the Resource Block RB that base station judges needed for the first configuration is greater than the maximum RB number of system assignment; If judged result is yes, the maximum RB number of system assignment is used to determine that the Modulation and Coding Scheme (MCS) of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration; If judged result is no, the number of Resource Block (RB) in the first configuration is used to determine that the Modulation and Coding Scheme (Modulation and Coding Scheme, referred to as MCS) of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration.
Preferably, pre-defined algorithm comprises one of following: the throughput of the base station using the business demand of the PHR of SINR measured value, terminal to report, demodulation ability grade and terminal to determine reaches maximum; The availability of frequency spectrum of the terminal using the business demand of SingleRB_SINR and terminal to determine reaches maximum.
For the terminal of the LTE ability rating five of 20M, in the scope of 16Kbit/S ~ 75Mbit/S, select peak transfer rate, the up configuration determined.
In LTE system, when choosing the availability of frequency spectrum reaching maximum between MCS0 to MCS28, the up configuration determined.
It should be noted that, above-mentioned pre-defined algorithm can according to terminal present position, namely the near point far away of community is arranged in, distinguishing terminal, spectrum efficiency optiaml ciriterion is used for nearly middle point terminal, namely the RB number that user distributes is no more than the RB number of the terminal power upper limit, ensure that the MCS that each RB uses is the operable maximum MCS of this terminal, RB number now receives the transmitting power impact of this terminal, spectrum efficiency optiaml ciriterion is for single terminal, throughput does not reach maximum, but due to the PSD on each RB be optimum, so cell throughout is optimum; Throughput maximal criterion is used to far point user, so-called throughput maximal criterion, namely base station its possible resource that provides most meets the business demand of terminal, the business demand amount of the channel quality of the optimized parameter under this criterion residing for terminal (i.e. SINR measured value) and user determines jointly, ensure that under terminal use current state, it can reach the RB number of maximum throughput and the configuration of MCS, fully ensures the business demand of this terminal; Strategy also can be the satisfaction according to terminal specific transactions, and choice for use throughput maximal criterion or spectrum efficiency optiaml ciriterion, the content of criterion is the same.
Embodiment one
Present embodiments provide a kind of ascending resource collocation method, the present embodiment combines above-described embodiment and preferred implementation wherein, and the method comprises:
Whether step 1: according to the Signal to Interference plus Noise Ratio SINR of terminal to report and the preallocated number of resource blocks of terminal bearer service and the up-to-date PHR value reported and corresponding RB number, judge whether to exist resource-constrained, limited, subsequent processes method is different
Step 2: calculate current whether power limited according to getting RB resource, power is not limited, according to preallocated configuration, processes.Limited UE is processed especially.
Step 3: by the SINR reported, considers the impact of Adaptive Modulation and Coding (Adaptive Modulation and Coding, referred to as AMC) and maximum transmission power, carries out single RB and converts process, obtain SingleRB_SINR.
Step 4: by the business demand of SingleRB_SINR and terminal, obtains best RB number and the MCS of correspondence according to corresponding criterion, i.e. the best configuration of this UE.
Step 5: according to current available resource, best configuration is adjusted, obtain the best configuration that can distribute.
By this preferred embodiment, overcome the method for current uplink assignment RB (Resource Block), mostly only consider from the business demand of UE and the angle of SINR that reports, these methods do not consider the restriction at UE maximum transmission power, when can cause the good community near point of UE channel quality like this, throughput does not reach peak value, wastes bandwidth resources; And when the community far point that channel quality is poor, throughput fluctuations is larger, not only the average of throughput does not reach theoretical peak, also there will be UE and thoroughly there is no flow, so that need the problem again accessed, the uplink scheduling method in conjunction with PHR information that the present embodiment proposes, PHR information is utilized to make up Resourse Distribute consider the restriction of maximum transmission power, effectively solve owing to not considering that the channel quality good community near point throughput that maximum transmission power causes does not reach peak value, waste bandwidth resources; And comparatively large in the community far point throughput fluctuations that channel quality is poor, occur that UE does not thoroughly have the problem of flow, and improve the reliability of system.
Embodiment two
Present embodiments provide a kind of ascending resource collocation method, the present embodiment combines above-described embodiment and wherein preferred embodiment, Fig. 2 is the flow chart of the uplink scheduling method in conjunction with power information according to the embodiment of the present invention, as shown in Figure 2, in this enforcement, be assigned as example (flow process and the broadband of filial generation scheduling are similar) the method with broadband RB and comprise:
Step S202: the assignment bit map according to RB number M1 and RB distributed before distributes RB from lowest number, if there be M1 continuous RB to distribute to this UE, then forward step S206 to, otherwise jumps to step S218, the TBsize that M1 is corresponding, be designated as TBsize_in.
Step S204: according to the RB number M1 estimated, calculate corresponding PHR, if the power of this UE is restricted, namely PHR is less than 0, then forward step S206 to, otherwise jumps to step S220.
Step S206: for the UE of power limited, calculates this UE and converts SINR at the single RB in up-to-date SI reporting NR moment, single RB convert bandwidth be report the moment RB number M0, and δ 1be calculated as follows shown in formula, utilizing single RB to convert, the mono-RB of broadband SINR measured converts by bandwidth is SingleRB_SINR.
δ 1 = P max - P P _ PUSCH P max > P P _ PUSCH 0 else
Wherein P p_PUSCH=10log 10(M0)+P o_Pusch+ α PL+ Δ tF(i)+f (i); If do not have PHR to report, be then 0.
The computing formula that single RB converts signal to noise ratio SingleRB_SINR is:
SingleRB_SINR＝SINR+ΔSINR+δ 1；
After SingleRB_SINR being considered to the impact of AMC, enter step S208;
Step S208: the TBsize_in of the Signal to Interference plus Noise Ratio SingleRB_SINR utilizing single RB to convert and the service needed of carrying obtains corresponding best configuration, the method of best configuration is a lot, the throughput principle of optimality can be considered, also the principle that the availability of frequency spectrum is the highest can be considered, according to different application scenarioss, determine different criterions, in corresponding criterion, the various restrictions of this UE considered, (demodulation ability level limits, business demand restriction etc.) obtain final best configuration, the present invention obtains the curve of throughput theoretical value under the Signal to Interference plus Noise Ratio SingleRB_SINR and maximum power transmission power that single RB converts by a large amount of emulation, utilize throughput and RB number and MCS relation one to one, and terminal traffic demand TBsize_in, best RB number can be obtained and be designated as M2, MCS is designated as MCS2, enter step S210.
Step S210: more best RB number and the relation of the maximum RB number (being designated as M3) that can distribute, if M2 is greater than M3, forward step S212 to, otherwise jump to step S224.
Step S212: according to finding maximum continuous assignable RB number M3, obtain and the RB number that M3 mates most and corresponding MCS, using this group RB and MCS configuration as best configuration, jumps to step S224.
Step S214: when can not find M1 continuous RB in bitmap, maximum continuous assignable RB number is designated as M4, continuous N 4 RB is distributed to this UE, enters step S216.
Step S216: judge whether PHR is less than 0 according to M4, if NO, then forward step S218 to, otherwise jump to step S220.
Step S218: for the UE not having power limited, keeps unit RB transmitting power constant, directly jumps to step 12.
Step S220: it is M4 that the single RB for the UE of power limited, this UE converts bandwidth, utilizing single RB to convert bandwidth by the mono-RB conversion of broadband SINR of measuring is SingleRB_SINR.δ 1definition and the computing formula of M consistent with step S206, same consider the impact of AMC after, enter step S220.
Step S222: the TBsize_in being converted the service needed of Signal to Interference plus Noise Ratio SingleRB_SINR and carrying by the single RB obtained obtains corresponding best configuration, the method of best configuration is a lot, when considering the throughput principle of optimality, first judge whether TBsize_in is greater than TBsize_max corresponding to SingleRB_SINR.If TBsize_in is greater than TBsize_max, then combine as best configuration with RB and the MCS that TBsize_max is corresponding; If TBsize_in is less than TBsize_max, then search the RB number mated most with M4, and the MCS of correspondence is as best configuration.Wherein best RB number is designated as M5, enters step S224.
Step S224: due to LTE up-link, the RB number of terminal distribution must meet 2,3,5 principles, and namely RB number must be the product of the exponential of 2 or 3 or 5, namely
RB num＝2 x*3 y*5 z
Wherein x, y, z is the integer of non-negative, adjusts the RB number distributed, and make it meet 2,3,5 principles, after utilizing adjustment, RB obtains final RB, and MCS obtains TBsize of equal value, enters step S226.
Step S226: according to the result of step S228, determines the final RB quantity of this UE, position and MCS value, according to entering step S228.
Step S228: broadband scheduling flow terminates.
Present embodiments provide a kind of ascending resource inking device, be applied to base station, Fig. 3 is the structured flowchart of the ascending resource inking device according to the embodiment of the present invention, as shown in Figure 3, this device comprises: the first determination module 32, second determination module 34, the 3rd determination module 36, be described in detail to said apparatus below.
First determination module 32, for determining that terminal is in power limited conditions, wherein, power limited conditions refers to the maximum transmission power of expectation transmitting power beyond terminal of terminal, expects that transmitting power meets the condition of predetermined error rate BLER; Second determination module 34, is connected to the first determination module 32, determines that dry the making an uproar of the letter of single Resource Block compares SingleRB_SINR for using the power headroom PHR of Signal to Interference plus Noise Ratio SINR and terminal to report; 3rd determination module 36, is connected to the second determination module 34, and the SingleRB_SINR for using the second determination module 34 to determine determines the configuration of ascending resource.
Preferably, the first determination module 32, is in power limited conditions for using the number determination terminal of Resource Block RB corresponding to power headroom PHR and PHR of the Signal to Interference plus Noise Ratio SINR of terminal to report, the preallocated number of resource blocks of terminal bearer service, terminal to report.
Second determination module 34, determines single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ for using following formula 1, wherein, SINR is the value measuring the Signal to Interference plus Noise Ratio obtained, and comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is the influence amount measuring SINR Time Bandwidth, δ 1for the PHR that SINR is corresponding, and p maxfor the maximum transmission power that terminal allows, and P p_PUSCHfor the expectation transmitting power of terminal, P p_PUSCH(i)=10log 10(M0)+P o_Pusch+ α PL+ Δ tFi ()+f (i), M0 are the current RB number needing to send of terminal, P o_Puschfor the power parameter of base station sets, accept power spectral density for the terminal identifying expectation, Δ tFi () is closed-loop power control parameter, be 0, f (i) be closed-loop power control parameter in open loop power control duration, at i-th frame of open loop power control duration to be 0, i be PUSCH.
Fig. 4 is the preferred structured flowchart of the ascending resource distributor according to the embodiment of the present invention, as shown in Figure 4,3rd determination module comprises: the 4th determination module 362, judge module 364, first processing module 364, second processing module 366, be described in detail said structure below:
4th determination module 362, determines the first configuration of up configuration for using the business demand of SingleRB_SINR and terminal by pre-defined algorithm;
For base station, judge module 364, judges whether the number of Resource Block RB in the first configuration is greater than the maximum RB number of system assignment; First processing module 364, be connected to judge module 364, during for judge module 364 judged result for being, the maximum RB number of system assignment is used to determine that the Modulation and Coding Scheme (MCS) of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration; Second processing module 366, be connected to judge module 364, when being no for judge module 364 judged result, the number of Resource Block RB in the first configuration is used to determine that the Modulation and Coding Scheme (MCS) of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration.
Preferably, pre-defined algorithm comprises: the availability of frequency spectrum of the terminal that the throughput of the base station using the business demand of SINR measured value and terminal to determine reaches maximum or uses the business demand of SingleRB_SINR and terminal to determine reaches maximum.
It should be noted that, throughput maximal criterion, namely base station its possible resource that provides most meets the business demand of terminal, the business demand amount of the channel quality of the optimized parameter under this criterion residing for terminal (i.e. SINR measured value) and user determines jointly, ensure that under terminal use current state, it can reach the RB number of maximum throughput and the configuration of MCS, fully ensures the business demand of this terminal; Spectrum efficiency optiaml ciriterion, namely the RB number that user distributes is no more than the RB number of the terminal power upper limit, RB number is now subject to the transmitting power impact of this terminal, ensure that the MCS that each RB uses is the operable maximum MCS of this terminal, spectrum efficiency optiaml ciriterion is for single terminal, throughput does not reach maximum, but due to the PSD on each RB be optimum, so cell throughout is optimum.
By above-described embodiment, provide a kind of ascending resource collocation method and device, determine that terminal is in power limited conditions by base station, wherein, power limited conditions refers to that terminal can not meet the condition of the maximum transmission power of Operation system setting; Base station uses SINR and maximum transmission power to determine single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR; Base station uses SingleRB_SINR to determine the configuration of ascending resource, solves ascending wireless resource distribution method in correlation technique and causes code check to raise and throughput degradation, the problem that resource utilization is lower, and then reach the effect improving resource utilization.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus they storages can be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. an ascending resource collocation method, is characterized in that, comprising:
Base station determines that terminal is in power limited conditions, and wherein, described power limited conditions refers to the maximum transmission power of expectation transmitting power beyond described terminal of described terminal, and described expectation transmitting power meets the condition of predetermined error rate BLER;
Described base station uses the power headroom PHR of Signal to Interference plus Noise Ratio SINR and described terminal to report to determine the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block;
Described base station uses described SingleRB_SINR to determine the configuration of ascending resource;
Described base station uses the PHR of described SINR and described terminal to report to determine, and the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block comprises:
Described base station uses following formula to determine the Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ △ SINR+ δ of described single Resource Block 1, wherein, SINR is the value measuring the Signal to Interference plus Noise Ratio obtained, and comprising the adjustment amount of adaptive modulation and coding AMC, △ SINR is the influence amount measuring SINR Time Bandwidth, δ 1for the PHR that SINR is corresponding, and p maxfor the maximum transmission power that terminal allows, and P p_PUSCHfor the expectation transmitting power of terminal, P p_PUSCH(i)=10log 10(M0)+P o_Pusch+ α PL+ △ tFi ()+f (i), M0 are the current RB number needing to send of described terminal, P o_Puschfor the power parameter of described base station sets, accept power spectral density for the terminal identifying expectation, △ tFi () is closed-loop power control parameter, be 0, f (i) be closed-loop power control parameter in open loop power control duration, at i-th frame of open loop power control duration to be 0, i be Physical Uplink Shared Channel PUSCH;
Described base station uses described SingleRB_SINR to determine, and the configuration of ascending resource comprises:
Described base station uses the business demand of described SingleRB_SINR and described terminal to determine the first configuration of up configuration by pre-defined algorithm;
Whether the number of the Resource Block RB that described base station judges needed for described first configuration is greater than the maximum RB number of system assignment;
If judged result is yes, the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration to use the maximum RB number of described system assignment to determine;
If judged result is no, the number of Resource Block RB in described first configuration is used to determine that the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration.
2. method according to claim 1, is characterized in that, described base station determines that terminal is in power limited conditions and comprises:
Described base station uses the number of Resource Block RB corresponding to the power headroom PHR of described Signal to Interference plus Noise Ratio SINR, the preallocated number of resource blocks of described terminal bearer service, described terminal to report and described PHR to determine that described terminal is in power limited conditions.
3. method according to claim 1, it is characterized in that, described pre-defined algorithm comprises one of following: the throughput of the described base station using the business demand of the PHR of described SINR measured value, described terminal to report, demodulation ability grade and described terminal to determine reaches maximum; The availability of frequency spectrum of the described terminal using the business demand of described SingleRB_SINR and described terminal to determine reaches maximum.
4. an ascending resource inking device, is applied to base station, it is characterized in that, comprising:
First determination module, for determining that terminal is in power limited conditions, wherein, described power limited conditions refers to the maximum transmission power of expectation transmitting power beyond described terminal of described terminal, and described expectation transmitting power meets the condition of predetermined error rate BLER;
Second determination module, determines that for using the power headroom PHR of Signal to Interference plus Noise Ratio SINR and described terminal to report dry the making an uproar of the letter of single Resource Block compares SingleRB_SINR;
3rd determination module, for the configuration using described SingleRB_SINR to determine ascending resource;
Second determination module, for the Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ △ SINR+ δ using following formula to determine single Resource Block 1, wherein, SINR is the value measuring the Signal to Interference plus Noise Ratio obtained, and comprising the adjustment amount of adaptive modulation and coding AMC, △ SINR is the influence amount measuring SINR Time Bandwidth, δ 1for the PHR that SINR is corresponding, and p maxfor the maximum transmission power that terminal allows, and P p_PUSCHfor the expectation transmitting power of terminal, P p_PUSCH(i)=10log 10(M0)+P o_Pusch+ α PL+ △ tFi ()+f (i), M0 are the current RB number needing to send of described terminal, P o_Puschfor the power parameter of described base station sets, accept power spectral density for the terminal identifying expectation, △ tFi () is closed-loop power control parameter, be 0, f (i) be closed-loop power control parameter in open loop power control duration, and at i-th frame of open loop power control duration to be 0, i be PUSCH;
3rd determination module comprises:
4th determination module, determines the first configuration of up configuration for using the business demand of described SingleRB_SINR and described terminal by pre-defined algorithm;
For described base station, judge module, judges whether the number of Resource Block RB needed for described first configuration is greater than the maximum RB number of system assignment;
First processing module, during for judged result for being, the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration to use the maximum RB number of described system assignment to determine;
Second processing module, when being no for judged result, uses the number of Resource Block RB in described first configuration to determine that the Modulation and Coding Scheme MCS of maximum continuous assignable RB data and correspondence thereof carries out ascending resource configuration.
5. device according to claim 4, is characterized in that,
First determination module, the number determination terminal of the Resource Block RB that power headroom PHR and described PHR for using the Signal to Interference plus Noise Ratio SINR of terminal to report, the preallocated number of resource blocks of described terminal bearer service, described terminal to report are corresponding is in power limited conditions.
6. device according to claim 4, it is characterized in that, described pre-defined algorithm comprises one of following: the throughput of the described base station using the business demand of the PHR of described SINR measured value, described terminal to report, demodulation ability grade and described terminal to determine reaches maximum; The availability of frequency spectrum of the described terminal using the business demand of described SingleRB_SINR and described terminal to determine reaches maximum.
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