CN102647796A - Method and device for upstream resource allocation - Google Patents

Method and device for upstream resource allocation Download PDF

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Publication number
CN102647796A
CN102647796A CN2011100420184A CN201110042018A CN102647796A CN 102647796 A CN102647796 A CN 102647796A CN 2011100420184 A CN2011100420184 A CN 2011100420184A CN 201110042018 A CN201110042018 A CN 201110042018A CN 102647796 A CN102647796 A CN 102647796A
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terminal
sinr
power
base station
confirm
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CN102647796B (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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    • 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

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 development of wireless communication devices; OFDM (Orthogonal Frequency Division Multiplexing; Abbreviate OFDM as) etc. new technology be applied in wireless broadband access system (like micro-wave access to global intercommunication (Worldwide Interoperability for Microwave Access; Abbreviate WiMAX as) in; The access speed of radio communication is risen to the 100Mbit/s magnitude, and these wireless broadband access systems have strengthened the support to terminal mobility, aligned the legacy cellular GSM that is in the 3G period of expansion and formed challenge.
Third generation partner program (3rd Generation Partnership Project; Abbreviate 3GPP as) insert (Wideband Code Division Multiple Access as WCDMA; Abbreviate WCDMA as) and TD SDMA access (Time Division-Synchronous Code Division Multiple Access; Abbreviating TD-SCDMA as) these two systems carry out the main tissue of International standardization work; For the technological development of 3G (Third Generation) Moblie that inserts (Code Division Multiple Access abbreviates CDMA as) technology based on code division multiple access has been brought into play important effect, in November, 2004; 3GPP has passed through about 3G Long Term Evolution (Long Term Evolution, project verification work LTE).The target of 3G LTE is: higher data rate, lower time delay, improved power system capacity and coverage, and lower cost.
In LTE system resource; Radio Resource comprises subcarrier and transmitted power; Because the cell mobile communication systems before the LTE system all is different from modulation technique, multiple access scheme and the network architecture; Therefore, its resource allocation has and conventional wireless resource allocation different features, and has produced a series of problems that need solution thus.The resource allocation of LTE system wireless has following characteristics: need to consider presence of intercell interference, dynamically the subchannel distributed network architecture that distributes and simplified.
In the LTE system there being and the traditional approach different features allocation of radio resources mechanism, wherein focuses on Dynamic Resource Allocation for Multimedia, comprising scheduling and power control two parts.
Ascending wireless resource distribution method mechanism in the correlation technique; Type of service based on the terminal; And channel quality dispatches, and causes that error rate BLER that actual maximum transmit power limit causes raises and throughput descends because the expectation transmitting power exceeds, and resource utilization is lower.
Cause code check to raise and throughput decline to ascending wireless resource distribution method in the correlation technique, the problem that resource utilization is lower does not propose effective solution at present as yet.
Summary of the invention
Main purpose of the present invention is to provide a kind of ascending resource collocation method and device, and the ascending wireless resource distribution method causes the error rate (BLER) to raise and throughput decline in the above-mentioned correlation technique so that solve, the relatively lower problem of resource utilization.
According to an aspect of the present invention; A kind of ascending resource collocation method is provided; Comprise: the base station confirms that the terminal is in the power limited state, and wherein, the power limited state is meant that the terminal guarantees that the expectation transmitting power of BLER performance has exceeded the maximum transmission power at terminal; The base station uses the power headroom (Power Headroom Report abbreviates PHR as) of SINR and terminal to report to confirm the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block; The base station uses the business demand at SingleRB_SINR and terminal to confirm the configuration of ascending resource.
Further, the base station confirms that the terminal is in the power limited state and comprises: the number of the Resource Block RB that the power headroom PHR of base station use Signal to Interference plus Noise Ratio SINR, the preallocated number of resource blocks of terminal bearer service, terminal to report and PHR are corresponding confirms that the terminal is in the power limited state.
Further, the base station uses the PHR of SINR and terminal to report to confirm that the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block comprises: the base station uses following formula to confirm the Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ of single Resource Block 1, wherein, SINR is the value of the Signal to Interference plus Noise Ratio that measures, comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is for measuring the amount of influence of SINR Time Bandwidth, δ 1Be the corresponding PHR of SINR, and P MaxBe the maximum transmission power of terminal permission, and P P_PUSCHBe the expectation transmitting power at terminal, P P_PUSCH(i)=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+and f (i), M0 is the current RB number that needs transmission in terminal, P O_PuschBe the power parameter of base station sets, power spectral density is accepted, Δ in the terminal that is used to identify expectation TF(i) being the closed-loop power control parameter, is 0 in the open loop power control duration, and f (i) is the closed-loop power control parameter, is 0 in the open loop power control duration, and i is the i frame of Physical Uplink Shared Channel PUSCH.
Further, the base station uses SingleRB_SINR to confirm that the configuration of ascending resource comprises: the base station uses the business demand at SingleRB_SINR and terminal to confirm first configuration of up configuration through pre-defined algorithm; Whether the number of the Resource Block RB that base station judges first configuration is required is greater than the maximum RB number of system assignment; If judged result is for being, the maximum RB number that using system distributes confirms that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration; If judged result uses the number of Resource Block RB in first configuration to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration for not.
Further, pre-defined algorithm comprises one of following: use the throughput of the base station that the business demand at PHR, demodulation ability grade and the terminal of SINR measured value, terminal to report confirms to reach maximum; The availability of frequency spectrum at the terminal that the business demand at use SingleRB_SINR and terminal is confirmed reaches maximum.
According to a further aspect in the invention; A kind of ascending resource inking device is provided; Comprise: first determination module is used for confirming that the terminal is in the power limited state, wherein; The power limited state is meant that the expectation transmitting power at terminal has exceeded the maximum transmission power at terminal, and the expectation transmitting power satisfies the condition of predetermined error rate BLER; Second determination module is used to use the PHR of SINR and terminal to report to confirm the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block; The 3rd determination module is used to use SingleRB_SINR to confirm the configuration of ascending resource.
Further, first determination module is used to use the number of the corresponding Resource Block RB of power headroom PHR and the PHR of Signal to Interference plus Noise Ratio SINR and the preallocated number of resource blocks of terminal bearer service, terminal to report of terminal to report to confirm that the terminal is in the power limited state.
Further, second determination module is used to use following formula to confirm the Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ of single Resource Block 1, wherein, SINR is the value of the Signal to Interference plus Noise Ratio that measures, comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is for measuring the amount of influence of SINR Time Bandwidth, δ 1Be the corresponding PHR of SINR, and P MaxBe the maximum transmission power of terminal permission, and P P_PUSCHBe the expectation transmitting power at terminal, P P_PUSCH(i)=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+and f (i), M0 is the current RB number that needs transmission in terminal, P O_PuschBe the power parameter of base station sets, power spectral density is accepted, Δ in the terminal that is used to identify expectation TF(i) being the closed-loop power control parameter, is 0 in the open loop power control duration, and f (i) is the closed-loop power control parameter, and is 0 in the open loop power control duration, and i is the i frame of PUSCH.
Further, the 3rd determination module comprises: the 4th determination module is used to use the business demand at SingleRB_SINR and terminal to confirm first configuration of up configuration through pre-defined algorithm; Whether judge module, the number that is used for the required Resource Block RB of base station judges first configuration be greater than the maximum RB number of system assignment; First processing module is used for judged result when being, the maximum RB number that using system distributes confirms that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration; Second processing module is used for judged result for not the time, uses the number of Resource Block RB in first configuration to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration.
Further, pre-defined algorithm comprises one of following: use the throughput of the base station that the business demand at PHR, demodulation ability grade and the terminal of SINR measured value, terminal to report confirms to reach maximum; The availability of frequency spectrum at the terminal that the business demand at use SingleRB_SINR and terminal is confirmed reaches maximum.
Through the present invention, adopt the base station to confirm that the terminal is in the power limited state, wherein, the power limited state is meant that the expectation transmitting power at terminal has exceeded the maximum transmission power at terminal, the expectation transmitting power satisfies the condition of predetermined error rate BLER; The base station uses the PHR of SINR and terminal to report to confirm single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR; The base station uses SingleRB_SINR to confirm the configuration of ascending resource, and solve in the correlation technique ascending wireless resource distribution method and caused code check to raise and throughput descends, the problem that resource utilization is lower, and then reached the effect that improves resource utilization.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the ascending resource collocation method of the embodiment of the invention;
Fig. 2 is the flow chart according to the uplink resource allocating method of the combination power information of the embodiment of the invention;
Fig. 3 is the structured flowchart according to the ascending resource inking device of the embodiment of the invention; And
Fig. 4 is the preferred construction block diagram according to the ascending resource inking device of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Present embodiment provides a kind of ascending resource collocation method, and Fig. 1 is the flow chart according to the uplink resource allocating method of the embodiment of the invention, and is as shown in Figure 1, and this method comprises:
Step S102: the base station confirms that the terminal is in the power limited state, and wherein, the power limited state is meant that the expectation transmitting power at terminal has exceeded the maximum transmission power at terminal, and the expectation transmitting power satisfies the condition of BLER;
Step S104: the base station uses the power headroom (PHR) of SINR and terminal to report to confirm the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block;
Step S106: the base station uses SingleRB_SINR to confirm the configuration of ascending resource.
Preferably, a preferred implementation in the face of step S102 under describes.The number of the power headroom PHR value of the Signal to Interference plus Noise Ratio SINR of base station use terminal to report and the preallocated number of resource blocks of said terminal bearer service, terminal to report, the RB that PHR is corresponding confirms that the terminal is in the power limited state.
Preferably, a preferred implementation in the face of step S104 under describes.The base station uses following formula to confirm single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ 1, wherein, SINR is the value of the Signal to Interference plus Noise Ratio that measures, comprising the adjustment amount of adaptive modulation and coding (AMC), Δ SINR is for measuring the amount of influence of SINR Time Bandwidth, δ 1Be the corresponding PHR of SINR, and
Figure BDA0000047406030000041
P MaxBe the maximum transmission power of terminal permission, and P P_PUSCHBe the expectation transmitting power at terminal, P P_PUSCH(i)=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+and f (i), M0 is the current RB number that needs transmission in terminal, P O_PuschBe the power parameter of base station sets, power spectral density is accepted, Δ in the terminal that is used to identify expectation TF(i) being the closed-loop power control parameter, is 0 in the open loop power control duration, and f (i) is the closed-loop power control parameter, is 0 in the open loop power control duration, and i is the i frame of Physical Uplink Shared Channel PUSCH.
Preferably, a preferred implementation in the face of step S106 under describes.The base station uses the business demand at SingleRB_SINR and terminal to confirm first configuration of up configuration through pre-defined algorithm; Whether the number of the Resource Block RB that base station judges first configuration is required is greater than the maximum RB number of system assignment; If judged result is for being, the maximum RB number that using system distributes confirms that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme (MCS) thereof carry out the ascending resource configuration; If judged result uses the number of Resource Block (RB) in first configuration to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme (Modulation and Coding Scheme abbreviates MCS as) thereof carry out the ascending resource configuration for not.
Preferably, pre-defined algorithm comprises one of following: use the throughput of the base station that the business demand at PHR, demodulation ability grade and the terminal of SINR measured value, terminal to report confirms to reach maximum; The availability of frequency spectrum at the terminal that the business demand at use SingleRB_SINR and terminal is confirmed reaches maximum.
Terminal with the LTE ability rating five of 20M is an example, in the scope of 16Kbit/S～75Mbit/S, selects peak transfer rate, definite up configuration.
In the LTE system, between MCS28, choose when reaching the peaked availability of frequency spectrum definite up configuration at MCS0.
Need to prove that above-mentioned pre-defined algorithm can promptly be arranged in the near point far away of sub-district according to the present position, terminal; Distinguishing terminal uses the spectrum efficiency optiaml ciriterion for point terminal near, i.e. the RB number of user's distribution is no more than the RB number of the terminal power upper limit; Guarantee that the MCS that each RB uses is the operable maximum MCS in this terminal; The RB number of this moment is received the transmitting power influence at this terminal, and the spectrum efficiency optiaml ciriterion is for single terminal, and throughput does not reach maximum; But because the PSD on each RB is optimum, so cell throughout is optimum; The far point user is used the throughput maximal criterion; So-called throughput maximal criterion; Be that most its possible resource that provides in base station satisfies the business demand at terminal; Optimized parameter under this criterion is determined by residing channel quality in terminal (being the SINR measured value) and user's business demand amount jointly, guarantees that it can reach the RB number of maximum throughput and the configuration of MCS under the terminal use current state, fully guarantees the business demand at this terminal; Strategy also can be the satisfaction according to the terminal specific transactions, selects to use throughput maximal criterion or spectrum efficiency optiaml ciriterion, and the content of criterion is the same.
Embodiment one
Present embodiment provides a kind of ascending resource collocation method, and present embodiment has combined the foregoing description and preferred implementation wherein, and this 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 up-to-date PHR value that reports and corresponding RB number, judge whether to exist resource-constrained, limited, the subsequent processes method is different
Step 2: calculate current whether power limited according to getting the RB resource, power is not limited, according to preallocated configuration, handles.UE to limited handles especially.
Step 3: with the SINR that reports, consider the influence of Adaptive Modulation and Coding (Adaptive Modulation and Coding abbreviates AMC as) and maximum transmission power, carry out single RB conversion and handle, obtain SingleRB_SINR.
Step 4:, obtain best RB number and corresponding MCS, the i.e. best configuration of this UE according to corresponding criterion by the business demand at SingleRB_SINR and terminal.
Step 5: according to current available resource best configuration is adjusted, obtained the best configuration that to distribute.
Through this preferred embodiment; Overcome the method for present uplink assignment RB (Resource Block); Mostly only consider that from the angle of the business demand of UE and the SINR that reports these methods are not considered the restriction at the UE maximum transmission power, in the time of can causing UE channel quality better cell near point like this; Throughput does not reach peak value, has wasted bandwidth resources; And when the relatively poor sub-district far point of channel quality; Throughput fluctuations is bigger; Not only the average of throughput does not reach theoretical peak, and UE also can occur does not thoroughly have flow, so that need the problem of access again; The uplink scheduling method of the combination PHR information that present embodiment proposes; Utilize PHR information to make up resource allocation consider the restriction of maximum transmission power, effectively solved owing to do not consider that the channel quality better cell near point throughput that maximum transmission power causes does not reach peak value, has wasted bandwidth resources; And bigger in the relatively poor sub-district far point throughput fluctuations of channel quality, the problem that UE does not thoroughly have flow occurs, and improve the reliability of system.
Embodiment two
Present embodiment provides a kind of ascending resource collocation method; Present embodiment has combined the foregoing description to reach wherein preferred embodiment; Fig. 2 is the flow chart according to the uplink scheduling method of the combination power information of the embodiment of the invention; As shown in Figure 2, in this enforcement, be assigned as this method of example (flow process and the broadband of filial generation scheduling are similar) with broadband RB and comprise:
Step S202: the assignment bit map of counting M1 and RB according to the RB that distributes before begins to distribute 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, and the TBsize that M1 is corresponding is designated as TBsize_in.
Step S204: the RB according to estimating counts M1, calculates corresponding PHR, if the power of this UE is restricted, promptly PHR then forwards step S206 to less than 0, otherwise jumps to step S220.
Step S206: for the UE of power limited, calculate this UE at up-to-date SI reporting NR single RB conversion SINR constantly, single RB conversion bandwidth be report constantly RB count M0, and δ 1Calculating be shown below, utilize single RB conversion bandwidth that the single RB conversion of the broadband SINR that measures is SingleRB_SINR.
δ 1 = P max - P P _ PUSCH P max > P P _ PUSCH 0 else
P wherein P_PUSCH=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+f (i); If there is not PHR to report, then be 0.
The computing formula of single RB conversion signal to noise ratio SingleRB_SINR is:
SingleRB_SINR＝SINR+ΔSINR+δ 1；
After SingleRB_SINR being considered the influence of AMC, get into step S208;
Step S208: utilize the Signal to Interference plus Noise Ratio SingleRB_SINR of single RB conversion and the TBsize_in of loaded service needs to obtain corresponding best configuration, the method for best configuration is a lot, can consider the throughput principle of optimality; Also can consider the principle that the availability of frequency spectrum is the highest,, confirm different criterions according to different application scenes; In corresponding criterion; The various restrictions of this UE that considers, (restriction of demodulation ability level, business demand restriction or the like) obtains final best configuration; The present invention has obtained the Signal to Interference plus Noise Ratio SingleRB_SINR of single RB conversion and the curve of the throughput theoretical value under the maximum power transmission power through lots of emulation; Utilize throughput and RB number and MCS to concern one to one, and terminal traffic demand TBsize_in, can obtain best RB number and be designated as M2; MCS is designated as MCS2, gets into step S210.
Step S210: the relation of more best RB number and the maximum RB number (being designated as M3) that can distribute if M2, forwards step S212 to greater than M3, otherwise jumps to step S224.
Step S212: according to finding the assignable RB number of maximum continuous M3, RB number that obtains mating most with M3 and corresponding MCS as best configuration, jump to step S224 with this group RB and MCS configuration.
Step S214: in bitmap, can not find M1 continuously during RB, the assignable RB number of maximum continuous is designated as M4, and 4 RB distribute to this UE with continuous N, get into step S216.
Step S216: whether judge PHR less than 0 according to M4, if not, then forward step S218 to, otherwise jump to step S220.
Step S218: for the UE that does not have power limited, keep the RB of unit transmitting power constant, directly jump to step 12.
Step S220: for the UE of power limited, single RB conversion bandwidth of this UE is M4, utilizes single RB conversion bandwidth that the single RB conversion of the broadband SINR that measures is SingleRB_SINR.δ 1The computing formula of definition and M consistent with step S206, consider the influence of AMC equally after, get into step S220.
Step S222: the TBsize_in that is needed by single RB conversion Signal to Interference plus Noise Ratio SingleRB_SINR that obtains and loaded service obtains corresponding best configuration; The method of best configuration is a lot; When considering the throughput principle of optimality, judge that at first whether TBsize_in is greater than the corresponding TBsize_max of SingleRB_SINR.If TBsize_in greater than TBsize_max, then makes up as best configuration with TBsize_max corresponding RB and MCS; If TBsize_in less than TBsize_max, then searches the RB number that matees most with M4, and corresponding MCS is as best configuration.Wherein best RB number is designated as M5, gets into step S224.
Step S224: because the LTE up-link, the RB number of terminal distribution must satisfy 2,3,5 principles, and promptly the RB number must be the product of 2 or 3 or 5 exponential, promptly
RB num＝2 x*3 y*5 z
Wherein x, y, z are non-negative integer, and the RB number that adjustment has distributed makes it satisfy 2,3,5 principles, and RB obtains final RB after the utilization adjustment, and MCS obtains TBsize of equal value, gets into step S226.
Step S226: according to the result of step S228, confirm the final RB quantity of this UE, position and MCS value, according to getting into step S228.
Step S228: the broadband scheduling flow finishes.
Present embodiment provides a kind of ascending resource inking device; Be applied to the base station; Fig. 3 is the structured flowchart according to the ascending resource inking device of the embodiment of the invention; As shown in Figure 3, this device comprises: first determination module 32, second determination module 34, the 3rd determination module 36 are elaborated in the face of said apparatus down.
First determination module 32 is used for confirming that the terminal is in the power limited state, and wherein, the power limited state is meant that the expectation transmitting power at terminal has exceeded the maximum transmission power at terminal, and the expectation transmitting power satisfies the condition of predetermined error rate BLER; Second determination module 34 is connected to first determination module 32, is used to use the power headroom PHR of Signal to Interference plus Noise Ratio SINR and terminal to report to confirm that dried the making an uproar of letter of single Resource Block compare SingleRB_SINR; The 3rd determination module 36 is connected to second determination module 34, is used to use second determination module, 34 definite SingleRB_SINR to confirm the configuration of ascending resource.
Preferably, first determination module 32 is used to use the number of the corresponding Resource Block RB of power headroom PHR and the PHR of Signal to Interference plus Noise Ratio SINR, the preallocated number of resource blocks of terminal bearer service, terminal to report of terminal to report to confirm that the terminal is in the power limited state.
Second determination module 34 is used to use following formula to confirm single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR=SINR+ Δ SINR+ δ 1, wherein, SINR is the value of the Signal to Interference plus Noise Ratio that measures, comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is for measuring the amount of influence of SINR Time Bandwidth, δ 1Be the corresponding PHR of SINR, and
Figure BDA0000047406030000081
P MaxBe the maximum transmission power of terminal permission, and P P_PUSCHBe the expectation transmitting power at terminal, P P_PUSCH(i)=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+and f (i), M0 is the current RB number that needs transmission in terminal, P O_PuschBe the power parameter of base station sets, power spectral density is accepted, Δ in the terminal that is used to identify expectation TF(i) being the closed-loop power control parameter, is 0 in the open loop power control duration, and f (i) is the closed-loop power control parameter, is 0 in the open loop power control duration, and i is the i frame of PUSCH.
Fig. 4 is the preferred construction block diagram according to the ascending resource distributor of the embodiment of the invention; As shown in Figure 4; The 3rd determination module comprises: the 4th determination module 362, judge module 364, first processing module 364, second processing module 366 are described in detail in the face of said structure down:
The 4th determination module 362 is used to use the business demand at SingleRB_SINR and terminal to confirm first configuration of up configuration through pre-defined algorithm;
Whether judge module 364, the number that is used for base station judges first configuration Resource Block RB be greater than the maximum RB number of system assignment; First processing module 364 is connected to judge module 364, is used for judge module 364 judged results when being, the maximum RB number that using system distributes confirms that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme (MCS) thereof carry out the ascending resource configuration; Second processing module 366; Be connected to judge module 364; Be used for judge module 364 judged results for not the time, use the number of Resource Block RB in first configuration to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme (MCS) thereof carry out the ascending resource configuration.
Preferably, pre-defined algorithm comprises: use the throughput of the base station that the business demand at SINR measured value and terminal confirms to reach maximum or use the availability of frequency spectrum at the definite terminal of the business demand at SingleRB_SINR and terminal to reach maximum.
Need to prove; The throughput maximal criterion; Be that most its possible resource that provides in base station satisfies the business demand at terminal; Optimized parameter under this criterion is determined by residing channel quality in terminal (being the SINR measured value) and user's business demand amount jointly, guarantees that it can reach the RB number of maximum throughput and the configuration of MCS under the terminal use current state, fully guarantees the business demand at this terminal; The spectrum efficiency optiaml ciriterion; Be the RB number that RB number that the user distributes is no more than the terminal power upper limit, the RB number of this moment receives the transmitting power influence at this terminal, guarantees that the MCS that each RB uses is the operable maximum MCS in this terminal; The spectrum efficiency optiaml ciriterion is for single terminal; Throughput does not reach maximum, but because the PSD on each RB is optimum, so cell throughout is optimum.
Through the foregoing description, a kind of ascending resource collocation method and device are provided, confirm that through the base station terminal is in the power limited state, wherein, the power limited state is meant that the terminal can not satisfy the condition of the maximum transmission power that system is provided with; The base station uses SINR and maximum transmission power to confirm single Resource Block Signal to Interference plus Noise Ratio SingleRB_SINR; The base station uses SingleRB_SINR to confirm the configuration of ascending resource, and solve in the correlation technique ascending wireless resource distribution method and caused code check to raise and throughput descends, the problem that resource utilization is lower, and then reached the effect that improves resource utilization.
Obviously; It is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize that they can concentrate on the single calculation element with the general calculation device; Perhaps be distributed on the network that a plurality of calculation element forms; Alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby can they be stored in the storage device; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an ascending resource collocation method is characterized in that, comprising:
The base station confirms that the terminal is in the power limited state, and wherein, said power limited state is meant that the expectation transmitting power at said terminal has exceeded the maximum transmission power at said terminal, and said expectation transmitting power satisfies the condition of predetermined error rate BLER;
Said base station uses the power headroom PHR of Signal to Interference plus Noise Ratio SINR and said terminal to report to confirm the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block;
Said base station uses said SingleRB_SINR to confirm the configuration of ascending resource.
2. method according to claim 1 is characterized in that, said base station confirms that the terminal is in the power limited state and comprises:
Said base station uses the number of the corresponding Resource Block RB of power headroom PHR and the said PHR of said Signal to Interference plus Noise Ratio SINR, the preallocated number of resource blocks of said terminal bearer service, said terminal to report to confirm that said terminal is in the power limited state.
3. method according to claim 1 is characterized in that, said base station uses the PHR of said SINR and said terminal to report to confirm that the Signal to Interference plus Noise Ratio SingleRB_SINR of single Resource Block comprises:
Said base station uses following formula to confirm the Signal to Interference plus Noise Ratio of said single Resource Block
SingleRB_SINR=SINR+ Δ SINR+ δ 1, wherein, SINR is the value of the Signal to Interference plus Noise Ratio that measures, comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is for measuring the amount of influence of SINR Time Bandwidth, δ 1Be the corresponding PHR of SINR, and
Figure FDA0000047406020000011
P MaxBe the maximum transmission power of terminal permission, and P P_PUSCHBe the expectation transmitting power at terminal, P P_PUSCH(i)=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+and f (i), M0 is the current RB number that needs transmission in said terminal, P O_PuschBe the power parameter of said base station sets, power spectral density is accepted, Δ in the terminal that is used to identify expectation TF(i) being the closed-loop power control parameter, is 0 in the open loop power control duration, and f (i) is the closed-loop power control parameter, is 0 in the open loop power control duration, and i is the i frame of Physical Uplink Shared Channel PUSCH.
4. method according to claim 1 is characterized in that, said base station uses said SingleRB_SINR to confirm that the configuration of ascending resource comprises:
Said base station uses the business demand at said SingleRB_SINR and said terminal to confirm first configuration of up configuration through pre-defined algorithm;
Whether the number of the required Resource Block RB of said first configuration of said base station judges is greater than the maximum RB number of system assignment;
If judged result for being, uses the maximum RB number of said system assignment to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration;
If judged result uses the number of Resource Block RB in said first configuration to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration for not.
5. method according to claim 4; It is characterized in that it is one of following that said pre-defined algorithm comprises: use the throughput of the said base station that the business demand at PHR, demodulation ability grade and the said terminal of said SINR measured value, said terminal to report confirms to reach maximum; Use the availability of frequency spectrum at the said terminal that the business demand at said SingleRB_SINR and said terminal confirms to reach maximum.
6. an ascending resource inking device is applied to the base station, it is characterized in that, comprising:
First determination module; Be used for confirming that the terminal is in the power limited state; Wherein, said power limited state is meant that the expectation transmitting power at said terminal has exceeded the maximum transmission power at said terminal, and said expectation transmitting power satisfies the condition of predetermined error rate BLER;
Second determination module is used to use the power headroom PHR of Signal to Interference plus Noise Ratio SINR and said terminal to report to confirm that dried the making an uproar of letter of single Resource Block compare SingleRB_SINR;
The 3rd determination module is used to use said SingleRB_SINR to confirm the configuration of ascending resource.
7. device according to claim 6 is characterized in that,
First determination module is used to use the number of the corresponding Resource Block RB of power headroom PHR and the said PHR of the Signal to Interference plus Noise Ratio SINR of terminal to report, the preallocated number of resource blocks of said terminal bearer service, said terminal to report to confirm that the terminal is in the power limited state.
8. device according to claim 6 is characterized in that,
Second determination module is used to use following formula to confirm the Signal to Interference plus Noise Ratio of single Resource Block
SingleRB_SINR=SINR+ Δ SINR+ δ 1, wherein, SINR is the value of the Signal to Interference plus Noise Ratio that measures, comprising the adjustment amount of adaptive modulation and coding AMC, Δ SINR is for measuring the amount of influence of SINR Time Bandwidth, δ 1Be the corresponding PHR of SINR, and
Figure FDA0000047406020000021
P MaxBe the maximum transmission power of terminal permission, and P P_PUSCHBe the expectation transmitting power at terminal, P P_PUSCH(i)=10log 10(M0)+P O_Pusch+ α PL+ Δ TF(i)+and f (i), M0 is the current RB number that needs transmission in said terminal, P O_PuschBe the power parameter of said base station sets, power spectral density is accepted, Δ in the terminal that is used to identify expectation TF(i) being the closed-loop power control parameter, is 0 in the open loop power control duration, and f (i) is the closed-loop power control parameter, and is 0 in the open loop power control duration, and i is the i frame of PUSCH.
9. device according to claim 6 is characterized in that, the 3rd determination module comprises:
The 4th determination module is used to use the business demand at said SingleRB_SINR and said terminal to confirm first configuration of up configuration through pre-defined algorithm;
Whether judge module, the number that is used for the required Resource Block RB of said first configuration of said base station judges be greater than the maximum RB number of system assignment;
First processing module is used for judged result when being, uses the maximum RB number of said system assignment to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration;
Second processing module is used for judged result for not the time, uses the number of Resource Block RB in said first configuration to confirm that assignable RB data of maximum continuous and corresponding Modulation and Coding Scheme MCS thereof carry out the ascending resource configuration.
10. device according to claim 9; It is characterized in that it is one of following that said pre-defined algorithm comprises: use the throughput of the said base station that the business demand at PHR, demodulation ability grade and the said terminal of said SINR measured value, said terminal to report confirms to reach maximum; Use the availability of frequency spectrum at the said terminal that the business demand at said SingleRB_SINR and said terminal confirms to reach maximum.
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