WO2012113183A1

WO2012113183A1 - Uplink resource configuration method and apparatus

Info

Publication number: WO2012113183A1
Application number: PCT/CN2011/074727
Authority: WO
Inventors: 吴继文; 刘巧艳
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-02-21
Filing date: 2011-05-26
Publication date: 2012-08-30
Also published as: CN102647796B; CN102647796A

Abstract

The present invention provides an uplink resource configuration method and apparatus. The method includes the following steps: a base station determines that a terminal is in power limitation state, wherein, the power limitation state indicates the expecting transmission power of the terminal is larger than the maximum transmission power of the terminal, and the expecting transmission power satisfies a condition of the preconcerted Block Error Rate (BLER); the base station determines a Single Resource Block Signal to Interference plus Noise Ratio (SingleRB_SINR) by using SINR and Power Headroom Report (PHR) reported by the terminal; and the base station determines the configuration of uplink resource by using the SingleRB_SINR. The utilization ratio of uplink resource is improved by the present invention.

Description

The present invention relates to the field of communications, and in particular to an uplink resource configuration method and apparatus. BACKGROUND OF THE INVENTION With the development of wireless communication technologies, Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division)

New technologies such as Multiplexing (OFDM) are used in wireless broadband access systems (such as Worldwide Interoperability for Microwave Access (WiMAX)) to increase the access speed of wireless communications to 100 Mbit/s. Level, and these wireless broadband access systems have enhanced support for terminal mobility, posing a challenge to traditional cellular mobile communication systems that are in the development of third-generation mobile communications (3G). The 3rd Generation Partnership Project (3GPP) is called Wideband Code Division Multiple Access (WCDMA) and Time Division-Synchronous Code Division Multiple Access (Time Division-Synchronous Code Division Multiple Access). Referred to as TD-SCDMA), the two organizations are the main organizations for international standardization work, and have played an important role in the development of third-generation mobile communication technologies based on Code Division Multiple Access (CDMA) technology. Role, November 2004, 3GPP adopted 3G Long Term Evolution (Long Term E The volution, referred to as LTE) project. The goals of 3G LTE are: higher data rate, longer delay, improved system capacity and coverage, and lower cost. In LTE system resources, wireless resources Including the subcarrier and the transmission power, since the LTE system is different from the previous cellular mobile communication system in the modulation technology, the multiple access scheme and the network architecture, the resource allocation has different characteristics from the traditional radio resource allocation, and thus A series of problems need to be solved. The radio resource allocation of LTE system has the following characteristics: Inter-cell interference, dynamic subchannel allocation and simplified distributed network architecture need to be considered. The radio resource allocation mechanism in LTE system is different from the traditional way. The characteristics are focused on dynamic resource allocation, while dynamic resource allocation includes scheduling and power control. The uplink radio resource allocation method mechanism in the related art is scheduled based on the service type of the terminal and the channel quality, and the bit error rate BLER caused by the expected transmit power exceeding the actual maximum transmit power limit is increased and the throughput is decreased, and the resource utilization is utilized. The rate is relatively low. Aiming at the problem that the uplink radio resource allocation method in the related art leads to an increase in the code rate and a decrease in throughput and a relatively low resource utilization rate, an effective solution has not been proposed yet. SUMMARY OF THE INVENTION A primary object of the present invention is to provide an uplink resource allocation method and apparatus, so as to solve the problem that the uplink radio resource allocation method in the related art causes an increase in bit error rate (BLER) and a decrease in throughput, and a low resource utilization rate. . According to an aspect of the present invention, an uplink resource configuration method is provided, including: the base station determines that the terminal is in a power limited state, where the power limited state refers to that the terminal ensures that the expected transmit power of the BLER performance exceeds the maximum transmit power of the terminal. The base station uses the SINR and the Power Headroom Report (PHR) reported by the terminal to determine the signal-to-noise ratio (Single RB SINR) of the single resource block; the base station determines the configuration of the uplink resource by using the SingleRB_SINR and the service requirements of the terminal. The determining, by the base station, that the terminal is in the power-restricted state includes: the base station uses a signal-to-noise ratio (SINR), the number of resource blocks pre-allocated by the terminal 7 service, the power headroom (PHR) of the terminal, and the resource block corresponding to the PHR (RB) The number of ) determines that the terminal is in a power limited state. Determining the signal-to-noise ratio (Single RB_SINR) of a single resource block using the Signal to Interference plus Niose Ratio (SINR) and the PHR reported by the terminal includes: The base station determines the signal-to-noise ratio SingleRB of the single resource block using the following formula— SINE^ SINR + ASINR + , where SINR is the value of the measured signal-to-noise ratio, including the adaptive modulation and coding (AMC) leg, which is the influence of the bandwidth when measuring the SINR. Is the PHR corresponding to the SINR, and is allowed by the terminal.

Maximum transmit power, and P _P H is the expected transmit power of the terminal, P _{P PUSCH} (i) = l0 \og _w (M0) + P _{o Pusch} + aPL + A _TF (i) + f(i) , MO is the terminal The number of RBs that need to be sent currently, _Pi ^ is the power parameter set by the base station, and is used to identify the desired terminal to accept the power spectral density. Δ^ ·) is the closed-loop power control parameter. When the open-loop power control is 0, /() is the closed-loop power control parameter. When the open-loop power control is 0, the value is the physical uplink shared channel (PUSCH). i frame. The determining, by the base station, the configuration of the uplink resource by using the SingleRB_SINR includes: the base station determines the first configuration of the uplink configuration by using a predetermined algorithm by using the SingleRB_SINR and the service requirement of the terminal; and determining, by the base station, the resource block (Resrouce Block, RB for short) required for the first configuration. Whether the number of the RBs is greater than the maximum number of RBs allocated by the system; if the judgment result is yes, the maximum RB data allocated by the system is used to determine the maximum continuously assignable RB data and its corresponding modulation and coding scheme (MCS) for uplink resource allocation; The result is no. The maximum continuously assignable RB data and its corresponding modulation and coding scheme (MCS) are determined using the number of resource blocks (RBs) in the first configuration for uplink resource configuration. The predetermined algorithm includes one of the following: the throughput of the base station determined by using the SINR measurement value, the PHR reported by the terminal, the demodulation capability level, and the service demand of the terminal reaches a maximum value; the spectrum of the terminal determined by using the SingleRB_SINR and the service requirement of the terminal The utilization rate reaches the maximum. According to another aspect of the present invention, an uplink resource configuration apparatus is provided, including: a first determining module, configured to determine that the terminal is in a power limited state, where the power limited state means that the expected transmit power of the terminal exceeds the terminal The maximum transmit power, the expected transmit power meets the condition of the predetermined bit error rate BLER; the second determining module is configured to determine the signal-to-noise ratio (Single RB SINR) of the single resource block using the SINR and the PHR reported by the terminal; the third determining module, Used to determine the configuration of uplink resources using the SingleRB SINR. The first determining module is configured to determine the terminal by using a signal-to-noise ratio (SINR) reported by the terminal, a resource block number pre-allocated by the terminal bearer service, a power headroom (PHR) reported by the terminal, and a number of resource blocks RB corresponding to the PHR. In a power limited state. a second determining module, configured to determine a signal-to-noise ratio SingleRB_SINR=SINR+ASINR+ _{? of the} single resource block using the following formula, wherein the _SINR is a value of the measured signal-to-noise ratio, including adaptive modulation and coding AMC The amount of adjustment, AS/NR is the amount of influence of the bandwidth when measuring siNR, which is the negative part of the PHR corresponding to the SINR, JL 5,

The dish is the maximum transmit power allowed by the terminal, and p _p H is the desired transmit power of the terminal.

P _{P PUSCH} (i) = l0 \og _w (M0) + P _{o Pusch} + aPL + A _TF (i) + f(i) , MO is the number of RBs that the terminal needs to transmit, _Pi ^ is the power set by the base station a parameter that identifies the desired terminal acceptance power spectral density, Δ^ ·) is the closed-loop power control parameter. When the open-loop power control is 0, /() is the closed-loop power control parameter, and the value is 0 when the open-loop power control is performed, and i is the ith frame of the PUSCH. The third determining module includes: a fourth determining module, configured to determine, by using a SingleRB_SINR and a service requirement of the terminal, a first configuration of the uplink configuration by using a predetermined algorithm; and a determining module, configured by the base station to determine a resource block (RB) required by the first configuration Whether the number is greater than the maximum number of RBs allocated by the system; the first processing module is configured to determine, by using the maximum number of RBs allocated by the system, the maximum continuously assignable RB data and its corresponding modulation and coding scheme (MCS). The first processing module is configured to determine, by using the number of resource blocks (RBs) in the first configuration, a maximum continuously assignable RB data and a corresponding modulation and coding scheme (MCS) for performing uplink resources. Configuration. The predetermined algorithm includes one of the following: the throughput of the base station determined by using the SINR measurement value, the PHR reported by the terminal, the demodulation capability level, and the service demand of the terminal reaches a maximum value; the spectrum utilization of the terminal determined by using the SingleRB_SINR and the service requirement of the terminal The rate reaches the maximum. With the present invention, the base station determines that the terminal is in a power-restricted state, where the power-restricted state refers to a condition that the expected transmit power of the terminal exceeds the maximum transmit power of the terminal, and the expected transmit power meets the predetermined error rate BLER; The SINR and the PHR reported by the terminal determine the single resource block signal-to-noise ratio SingleRB SINR; the base station uses the SingleRB SINR to determine the configuration of the uplink resource, and solves the related art, the uplink radio resource allocation method causes the code rate to increase and the throughput decreases, and the resource utilization rate The lower the problem, the better the effect of improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a flowchart of an uplink resource configuration method according to an embodiment of the present invention; FIG. 2 is a flowchart of an uplink resource allocation method combining power information according to an embodiment of the present invention; A block diagram of a configuration of an uplink resource configuration apparatus; and FIG. 4 is a block diagram showing a preferred structure of an uplink resource configuration apparatus according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. This embodiment provides a method for configuring an uplink resource. FIG. 1 is a flowchart of an uplink resource allocation method according to an embodiment of the present invention. As shown in FIG. 1, the method includes: Step S102: The base station determines that the terminal is in a power limited manner. a state in which the power-restricted state is that the expected transmit power of the terminal exceeds the maximum transmit power of the terminal, and the expected transmit power satisfies the condition of the BLER; Step S104: The base station uses the SINR and the power headroom (PHR) reported by the terminal to determine the status The signal-to-noise ratio (Single RB_SINR) of the resource block; Step S106: The base station determines the configuration of the uplink resource using the SingleRB SINR. Through the above steps, the base station first determines that the terminal is in a power-restricted state, and then uses SINR and PHR to determine the signal-to-sink ratio of the single resource block, and then performs uplink resource configuration, which overcomes the uplink radio resource allocation method in the related art. The mechanism is based on the service type of the terminal and the channel quality, and the problem that the expected transmission power exceeds the actual maximum transmission power limit, and the error rate BLER is increased, the throughput is decreased, and the resource utilization rate is relatively low, thereby achieving the problem. Improve system throughput and resource utilization. Preferably, a preferred embodiment of step 4 S 102 is described below. The base station uses the signal-to-noise ratio (SINR) of the terminal and the number of resource blocks pre-allocated by the terminal, the power headroom PHR value of the terminal, and the number of RBs corresponding to the PHR, to determine that the terminal is in a power-limited state. . Preferably, a preferred embodiment of step S104 is described below. The base station determines the single resource block signal-to-noise ratio SingleRB_SINE^SINR + ASINR + using the following formula, where SINR is the measured value of the signal-to-noise ratio, including the adaptive modulation and coding (AMC) adjustment, ASINR The amount of influence of the bandwidth for measuring the SINR is the negative part of the PHR corresponding to the SINR, and = ( ^Pmax " ^Pp - ^{PUSCH ?max < Pp} - ^PUSCH , P _max is the maximum transmit power allowed by the terminal, and P _{P PUSCH} I 0 else

For the desired transmit power of the terminal, Ρ _{ρ Ρ [} ^( ) = 101ο _& . (Μ0) + Ρ. _{p 3⁄4} + "PJ + A _rF ( ) + /( ) , Μ0 is the number of RBs currently required to be transmitted by the terminal, P. _Pi ^ is the power parameter set by the base station, used to identify the desired terminal acceptance power spectral density, Δ^ ) is the closed-loop power control parameter, when the open-loop power control is 0, ( ) For the closed loop power control parameter, the value is 0 in the open loop power control, and i is the ith frame of the physical uplink shared channel PUSCH. Preferably, a preferred embodiment of step 4 S S 106 is described below. The base station uses the SingleRB_SINR and the service requirement of the terminal to determine the first configuration of the uplink configuration by using a predetermined algorithm; the base station determines whether the number of resource blocks (RBs) required for the first configuration is greater than the maximum number of RBs allocated by the system; Using the maximum number of RBs allocated by the system to determine the maximum continuously assignable RB data and its corresponding modulation and coding scheme (MCS) for uplink resource configuration; if the determination result is no, the number of resource blocks (RBs) in the first configuration is determined. The maximum contiguous RB data and its corresponding Modulation and Coding Scheme (MCS) are configured for uplink resources. Preferably, the predetermined algorithm comprises one of: using a SINR measurement value, a PHR reported by the terminal, a demodulation capability level, and a service demand of the terminal to determine a throughput of the base station to reach a maximum value; using the SingleRB_SINR and the service requirement of the terminal. The spectrum utilization of the terminal reaches a maximum. Taking the terminal of the LTE capability level 5 of 20M as an example, the maximum transmission rate and the determined uplink configuration are selected in the range of 16 Kbit/S to 75 Mbit/s. In the LTE system, when the spectrum utilization of the maximum value is selected between MCS0 and MCS28, the uplink configuration is determined. It should be noted that, the foregoing predetermined algorithm may distinguish the terminal according to the location of the terminal, that is, the far-infra near point of the cell, and use the spectrum efficiency optimal criterion for the near-middle terminal, that is, the number of RBs allocated by the user does not exceed the terminal power limit. The number of RBs ensures that the MCS used by each RB is the maximum MCS that can be used by the terminal. The number of RBs at this time is affected by the transmit power of the terminal. The optimal spectrum efficiency criterion cannot be achieved for a single terminal. Maximum value, but since the PSD on each RB is optimal, the cell throughput is optimal; for the far-end users, the maximum throughput criterion is used, the so-called maximum throughput criterion, that is, the base station provides the resources possible to meet the requirements. The service requirements of the terminal, the optimal parameters under the criterion are determined by the channel quality (ie, the SINR measurement value) of the terminal and the service demand of the user, ensuring that the terminal uses the number of RBs that can reach the maximum throughput in the current state. The configuration of the MCS fully guarantees the service requirements of the terminal; the policy can also be selected according to the satisfaction degree of the specific service of the terminal. The maximum amount of spit criteria or guidelines for the optimal spectrum efficiency, content guidelines above. Embodiment 1 This embodiment provides an uplink resource configuration method. The embodiment combines the foregoing embodiment and a preferred implementation manner thereof. The method includes: Step 1: According to the signal-to-noise ratio SINR and terminal on the terminal The number of resource blocks pre-allocated by the bearer service and the newly reported PHR value and the corresponding number of RBs determine whether there is resource limitation and whether it is restricted. The subsequent processing method is different. Step 2: Calculate whether the current power is limited according to the RB resources that can be allocated. , power is not limited, according to the pre-allocated configuration, processing. Special handling is performed on restricted UEs. Step 3: Consider the SINR of the report, consider the effects of Adaptive Modulation and Coding (AMC) and the maximum transmit power, and perform a single RB conversion process to obtain the SingleRB SINR. Step 4: Service requirements by the SingleRB SINR and the terminal According to the corresponding criteria, the best RB number and the corresponding MCS are obtained, that is, the optimal configuration of the UE. Step 5: Adjust the best configuration based on the currently available resources to get the best configuration that can be assigned. With the preferred embodiment, the current method for allocating RB (Resource Block) is mostly considered from the perspective of the service requirements of the UE and the reported SINR. These methods do not take into account the limitation of the maximum transmit power of the UE. In this case, when the cell with good channel quality of the UE is close to the peak, the throughput does not reach the peak value, and the bandwidth resource is wasted; and when the cell with poor channel quality is far away, the throughput fluctuates greatly, and the mean of the throughput is not only reached. If there is no theoretical peak, there will be a problem that the UE has no traffic at all and needs to be re-accessed. The uplink resource scheduling method combined with the PHR information proposed in this embodiment uses the PHR information to make the uplink resource allocation take into account the limitation of the maximum transmission power. Effectively solves the problem that the near-point throughput of the cell with good channel quality is not peak due to the failure to consider the maximum transmit power, and the bandwidth resource is wasted; and the throughput of the cell with poor channel quality fluctuates greatly. The UE has no traffic problems at all and improves the reliability of the system. Embodiment 2 This embodiment provides an uplink resource configuration method. This embodiment combines the foregoing embodiments and preferred embodiments thereof. FIG. 2 is an uplink resource adjustment combined with power information according to an embodiment of the present invention. A flow chart of the method, as shown in FIG. 2, in the present embodiment, taking the broadband RB allocation as an example (the flow of the child scheduling is similar to the broadband). The method includes: Step S202: The number of RBs previously allocated according to the number of RBs And the allocation bitmap of the RB allocates the RB from the smallest number. If there are M1 consecutive RBs allocated to the UE, go to step S206, otherwise, jump to step 4 to gather S218, and TBsize corresponding to M1 is recorded as TBsize_in. Step S204: Calculate the corresponding PHR according to the estimated RB number M 1 . If the power of the UE is limited, that is, PHR is less than 0, then go to step S206, otherwise, go to step S220. Step S206: For the UE with limited power, calculate a single RB converted SINR of the UE at the latest last 4 艮 SINR time, and the single RB conversion bandwidth is the RB number M0 of the reporting time, and the calculation is as follows: The discounted bandwidth converts the measured wideband SINR single RB into a SingleRB SINR.

= 101og ₁₀ ( 0) + _o + aPL + A _TF (i) + f (i) .

; 0 if there is no 4 on PHR. Single RB conversion signal to noise ratio SingleRB _ SIN is calculated as:

SingleRB_SLM = SINR + ASINR + δ _χ . After considering the effect of _AMC on SingleRB-SINR, go to step S208; Step S208: Obtain the signal-to-noise ratio (Single RB_SINR) of the single RB and the TBsizejn required by the bearer service Corresponding optimal configuration, optimal configuration method is more than 4, can consider the best throughput principle, can also consider the principle of the highest spectrum utilization, according to different application scenarios, determine different criteria, in the corresponding criteria, Considering the various limitations of the UE, (demodulation capability level limitation, service demand limitation, etc.), the final optimal configuration is obtained. The present invention obtains a single RB converted single-signal-to-noise ratio (Single-RBIR) by a large number of simulations. The theoretical value of the throughput under the maximum power transmission power, using the throughput and the number of RBs and the MCS-corresponding relationship, and the terminal service demand TBsizejn, the best RB number can be obtained as M2, MCS is recorded as MCS2, enter Step S210. Step S210: Compare the relationship between the optimal number of RBs and the maximum number of RBs that can be allocated (denoted as M3). If M2 is greater than M3, go to step S212, otherwise, go to step S224. Step S212: According to finding the maximum consecutively assignable number of RBs M3, the number of RBs that best match M3 and the corresponding MCS are obtained, and the set of RBs and MCS are configured as an optimal configuration, and the process proceeds to step S224. Step S214: When M1 consecutive RBs are not found in the bitmap, the maximum number of consecutively assignable RBs is denoted as M4, and consecutive M4 RBs are allocated to the UE, and the process proceeds to step S216. Step S216: It is judged according to M4 whether the PHR is less than 0, and if not, the process goes to step S218, otherwise the process goes to step S220. Step S218: For the UE without power limitation, keep the unit RB transmission power unchanged, and directly jump to step S224. Step S220: For a power-limited UE, the single RB conversion bandwidth of the UE is M4, and the measured broadband SINR single RB is converted into SingleRB_SINR by using a single RB conversion bandwidth. The definition of M and the calculation formula of M are the same as step S206. After considering the influence of AMC, the process proceeds to step S220. Step S222: The corresponding optimal configuration is obtained from the obtained single RB conversion signal single-noise ratio (Single RB SINR) and the TBsizejn required for the carried service, and the optimal configuration method is more than four. When considering the best throughput principle, the first judgment is made. Whether TBsizejn is greater than TBsize_max corresponding to SingleRB_SINR. If TBsize in is greater than TBsize max, BBsize max corresponds to RB and MCS as the best configuration; if TBsize_in is less than TBsize_max, then find the number of RBs that best match M4, and the corresponding MCS as the best configuration. The optimal number of RBs is Μ5, and the process proceeds to step S224. Step S224: Due to the LTE uplink system, the number of RBs allocated by the terminal must satisfy the principle of 2, 3, and 5, that is, the number of RBs must be a product of powers of 2 or 3 or 5, that is, ^ :? ^?^ ² , where x, y, and z are non-negative integers, and the number of allocated RBs is adjusted to satisfy the 2, 3, and 5 principles. After the adjustment, the RB obtains the final RB, and the MCS obtains the equivalent TBsize. Go to step S226. Step S226: Determine the final number of RBs, the location, and the MCS value of the UE according to the result of step S228, and proceed to step S228. Step S228: The broadband scheduling process ends. The embodiment provides an uplink resource configuration apparatus, which is applied to a base station, and FIG. 3 is a structural block diagram of an uplink resource configuration apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: a first determining module 32, The second determining module 34 and the third determining module 36 are described in detail below. The first determining module 32 is configured to determine that the terminal is in a power limited state, where the power limited state refers to a condition that the expected transmit power of the terminal exceeds the maximum transmit power of the terminal, and the expected transmit power meets the predetermined error rate BLER; The second determining module 34 is connected to the first determining module 32, and configured to determine a signal-to-noise ratio (Single RB_SINR) of the single resource block by using a signal-to-noise ratio SINR and a power headroom (PHR) reported by the terminal; the third determining module 36, Connected to the second determining module 34, it is arranged to determine the configuration of the uplink resource using the SingleRB_SINR determined by the second determining module 34. Preferably, the first determining module 32 is configured to use the signal-to-noise ratio SINR reported by the terminal, and the terminal

7 The number of resource blocks pre-allocated by the service, the power headroom (PHR) on the terminal, and the number of resource blocks (RBs) corresponding to the PHR determine that the terminal is in a power limited state. The second determining module 34 is configured to determine a single resource block signal-to-noise ratio SingleRB_SINR=SINR+ASINR+ δ _λ using the following formula, where the SINR is a value of the measured signal-to-noise ratio, including adaptive modulation and The amount of adjustment of the coded AMC, AS/NR is the influence of the bandwidth when measuring the SINR, which is the negative part of the PHR corresponding to the SINR, and = i ^Pmax " ^Pp - ^{PUSCH Pmax < Pp} - ^PUSCH , θ else

The maximum transmit power allowed for the terminal, and P _p H is the expected transmit power of the terminal,

P _{P PUSCH} (i) = lO\og _w (MO) + P _{0 Pusch} + aPL + A _TF (i) + f(i) , MO is the number of RBs that the terminal needs to transmit, _Pi ^ is the power set by the base station The parameter is used to identify the desired terminal acceptance power spectral density, Δ^ ·) is the closed-loop power control parameter. When the open-loop power control is 0, /() is the closed-loop power control parameter, and the open-loop power control value is 0, i is the ith frame of the PUSCH. FIG. 4 is a block diagram of a preferred structure of an uplink resource allocation apparatus according to an embodiment of the present invention. As shown in FIG. 4, the third determining module includes: a fourth determining module 362, a determining module 364, a first processing module 364, and a second processing. The module 366 is described in detail below. The fourth determining module 362 is configured to determine the first configuration of the uplink configuration by using a predetermined algorithm by using the SingleRB_SINR and the service requirement of the terminal. The determining module 364 is configured to determine that the base station is the first Whether the number of resource blocks RBs in the configuration is greater than the maximum number of RBs allocated by the system; the first processing module 364 is connected to the determining module 364, and when the determining module 364 determines that the result is YES, the maximum number of RBs allocated by the system is used to determine the maximum continuous number. Distribution The RB data and its corresponding modulation and coding scheme (MCS) perform uplink resource configuration; the second processing module 366 is connected to the determining module 364, and when the determining module 364 determines that the result is no, the resource block RB in the first configuration is used. The number determines the maximum continuously assignable RB data and its corresponding modulation and coding scheme (MCS) for uplink resource configuration. Preferably, the predetermined algorithm comprises: using a SINR measurement value and a service demand determined by the terminal, the throughput of the base station reaches a maximum value or the spectrum utilization of the terminal determined by using the SingleRB SINR and the service requirement of the terminal reaches a maximum value. It should be noted that the maximum throughput criterion is that the base station provides resources to meet the service requirements of the terminal as much as possible. The optimal parameters under the criterion are the channel quality (ie, the SINR measurement value) of the terminal and the service demand of the user. The joint decision is made to ensure that the terminal uses the RB number and the MCS configuration that can achieve the maximum throughput in the current state, and fully guarantees the service requirement of the terminal; the spectrum efficiency optimal criterion, that is, the RB whose number of RBs allocated by the user does not exceed the terminal power limit. The number of RBs at this time is affected by the transmit power of the terminal, ensuring that the MCS used by each RB is the maximum MCS that the terminal can use, and the spectrum efficiency optimal criterion does not reach the maximum value for a single terminal. However, since the PSD on each RB is optimal, the cell throughput is optimal. The foregoing embodiment provides an uplink resource configuration method and device, where the base station determines that the terminal is in a power limited state, where the power limited state refers to a condition that the terminal cannot meet the maximum transmit power set by the system; the base station uses the SINR and The maximum transmit power determines the single resource block signal-to-noise ratio (Single RB SINR); the base station uses the SingleRB SINR to determine the configuration of the uplink resource, and solves the related art, the uplink radio resource allocation method leads to an increase in the code rate and a decrease in the throughput, and the resource utilization ratio is compared. The low problem, in turn, achieves the effect of improving resource utilization. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claims An uplink resource allocation method, including:

The base station determines that the terminal is in a power-restricted state, where the power-restricted state refers to a condition that the expected transmit power of the terminal exceeds the maximum transmit power of the terminal, and the expected transmit power meets a predetermined error rate BLER;

The base station determines a signal-to-noise ratio SingleRB SINR of a single resource block using a signal-to-noise ratio SINR and a power headroom PHR of the terminal; the base station determines the configuration of the uplink resource by using the SingleRB SINR. The method according to claim 1, wherein the determining, by the base station, that the terminal is in a power limited state comprises:

Determining, by the base station, that the terminal is in the SINR, the number of resource blocks pre-allocated by the terminal, the power headroom PHR reported by the terminal, and the number of resource blocks RB corresponding to the PHR. Power limited state. The method according to claim 1, wherein the determining, by the base station, the SingleRB SINR by using the SINR and the PHR of the terminal on the terminal comprises: determining, by the base station, a signal of the single resource block by using the following formula Than

SingleRB _ SINR = SINR + ASINR + δ _λ , where SINR is the measured value of the signal-to-noise ratio, including the adjustment amount of adaptive modulation and coding AMC, and AS/NR is the influence of the bandwidth when measuring SINR. SINR corresponds to the negative part of PHR, and

|P _maX - Pp_P _US CH P _maX < P _P — PUSCH , p is the maximum transmit power allowed by the terminal, and [ 0 otherwise

P _{P PUSCH} is the expected transmit power of the terminal, P _P _PUSCH (0 = 10 log ₁₀ ( 0) + P _{o Pusch} + aPL + A _TF (i) + / (/), and MO is the RB currently required to be sent by the terminal. The number, P. _Pi ^ is the power parameter set by the base station, used to identify the desired terminal acceptance power spectral density, Δ^) is the closed loop power control parameter, and the value is 0 in the open loop power control, /() is The closed-loop power control parameter is 0 when the open-loop power control is performed, and i is the ith frame of the physical uplink shared channel PUSCH.

The method according to claim 1, wherein the determining, by the base station, the configuration of the uplink resource by using the Single RB_SINR includes:

Determining, by the base station, the first configuration of the uplink configuration by using a predetermined algorithm by using the SingleRB SINR and a service requirement of the terminal;

Determining, by the base station, whether the number of resource blocks RB required by the first configuration is greater than a maximum number of RBs allocated by the system;

If the determination result is yes, the maximum RB data allocated by the system is used to determine the maximum continuously assignable RB data and the corresponding modulation and coding scheme MCS to perform uplink resource configuration; if the determination result is no, the resources in the first configuration are used. The number of block RBs determines the maximum continuously assignable RB data and its corresponding modulation and coding scheme MCS for uplink resource configuration.

5. The method according to claim 4, wherein the predetermined algorithm comprises one of: determining, using the SINR measurement value, a PHR on the terminal, a demodulation capability level, and a service requirement of the terminal. The throughput of the base station reaches a maximum value; the spectrum utilization rate of the terminal determined by using the SingleRB SINR and the service requirement of the terminal reaches a maximum value.

6. An uplink resource configuration apparatus, applied to a base station, comprising:

a first determining module, configured to determine that the terminal is in a power-restricted state, where the power-restricted state is that the expected transmit power of the terminal exceeds a maximum transmit power of the terminal, and the expected transmit power meets a predetermined error The condition of the code rate BLER;

a second determining module, configured to determine a signal-to-noise ratio SingleRB SINR of the single resource block by using a signal-to-noise ratio SINR and a power headroom PHR reported by the terminal; and a third determining module, configured to determine an uplink by using the SingleRB_SINR The configuration of the resource.

7. The apparatus according to claim 6, wherein

a first determining module, configured to use a signal-to-noise ratio SINR reported by the terminal, a number of resource blocks pre-allocated by the terminal bearer service, a power headroom PHR on the terminal, and a resource block RB corresponding to the PHR The number determines that the terminal is in a power limited state.

8. The apparatus according to claim 6, wherein

A second determination module, a single set of resource blocks is determined using the following formula one thousand channel noise ratio SingleRB _ SINR = SINR + ASINR + δ λ, wherein, the SINR value measured channel noise ratio of one thousand, including adaptive modulation and The amount of adjustment of the coded AMC, AS/NR is the influence of measuring the SINR bandwidth, which is the PHR corresponding to the SINR, and is the maximum transmit power allowed by the terminal.

P _P — H is the expected transmit power of the terminal,

P _P _PUSCH (0 = 10 log ₁₀ ( 0) + P _{o Pusch} + aPL + A _TF (i) + / (/) , MO is the number of RBs currently required to be transmitted by the terminal, and P _Pi ^ is the base station The fixed power parameter is used to identify the desired terminal acceptance power spectral density, Δ^) is the closed-loop power control parameter, and the value is 0 in the open-loop power control, /() is the closed-loop power control parameter, and the open-loop power control parameter The time value is 0, and i is the ith frame of the PUSCH.

9. The apparatus according to claim 6, wherein the third determining module comprises:

a fourth determining module, configured to determine, by using a predetermined algorithm, a first configuration of an uplink configuration by using the SingleRB SINR and a service requirement of the terminal;

a determining module, configured to determine, by the base station, whether the number of resource blocks RB required by the first configuration is greater than a maximum number of RBs allocated by the system;

And the first processing module is configured to determine, by using the maximum number of RBs allocated by the system, the maximum continuously assignable RB data and the corresponding modulation and coding scheme MCS to perform uplink resource configuration;

And the second processing module is configured to determine, by using the number of the resource blocks RB in the first configuration, the maximum continuously assignable RB data and the corresponding modulation and coding scheme MCS to perform uplink resource configuration.

10. The apparatus according to claim 9, wherein the predetermined algorithm comprises one of: determining, using the SINR measurement value, a PHR on the terminal, a demodulation capability level, and a service requirement of the terminal. The throughput of the base station reaches a maximum value; the spectrum utilization rate of the terminal determined by using the SingleRB SINR and the service requirement of the terminal reaches a maximum value.