WO2012113183A1 - Procédé et appareil de configuration de ressources de liaison montante - Google Patents

Procédé et appareil de configuration de ressources de liaison montante Download PDF

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Publication number
WO2012113183A1
WO2012113183A1 PCT/CN2011/074727 CN2011074727W WO2012113183A1 WO 2012113183 A1 WO2012113183 A1 WO 2012113183A1 CN 2011074727 W CN2011074727 W CN 2011074727W WO 2012113183 A1 WO2012113183 A1 WO 2012113183A1
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Prior art keywords
terminal
sinr
base station
power
configuration
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PCT/CN2011/074727
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English (en)
Chinese (zh)
Inventor
吴继文
刘巧艳
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中兴通讯股份有限公司
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Publication of WO2012113183A1 publication Critical patent/WO2012113183A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to the field of communications, and in particular to an uplink resource configuration method and apparatus.
  • 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).
  • 3GPP 3rd Generation Partnership Project
  • WCDMA Wideband Code Division Multiple Access
  • Time Division-Synchronous Code Division Multiple Access Time Division-Synchronous Code Division Multiple Access
  • TD-SCDMA Time Division Multiple Access
  • LTE Long Term Evolution
  • the goals of 3G LTE are: higher data rate, longer delay, improved system capacity and coverage, and lower cost.
  • 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.
  • 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.
  • BLER bit error rate
  • an uplink resource configuration method 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.
  • SINR signal-to-noise ratio
  • PHR power headroom
  • 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.
  • SINR is the value of the measured signal-to-noise ratio
  • AMC adaptive modulation and coding
  • 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.
  • ⁇ ⁇ ) 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.
  • MCS modulation and coding scheme
  • the maximum continuously assignable RB data and its corresponding modulation and coding scheme 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.
  • an uplink resource configuration apparatus 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.
  • 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
  • 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.
  • SINR is a value of the measured signal-to-noise ratio, including adaptive modulation and coding AMC
  • 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
  • ⁇ ⁇ ) is the closed-loop power control parameter.
  • 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).
  • MCS modulation and coding scheme
  • 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.
  • 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.
  • 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
  • FIG. 4 is a block diagram showing a preferred structure of an uplink resource configuration apparatus according to an embodiment of the present invention.
  • 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.
  • 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.
  • 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.
  • 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.
  • SINR signal-to-noise ratio
  • step S104 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
  • SINR is the measured value of the signal-to-noise ratio, including the adaptive modulation and coding (AMC) adjustment, ASINR
  • AMC adaptive modulation and coding
  • ⁇ ⁇ ⁇ [ ⁇ ( ) 101 ⁇ & . ( ⁇ 0) + ⁇ . p 3 ⁇ 4 + "PJ + A rF ( ) + /( )
  • ⁇ 0 is the number of RBs currently required to be transmitted by the terminal
  • Pi ⁇ is the power parameter set by the base station, used to identify the desired terminal acceptance power spectral density
  • ⁇ ) is the closed-loop power control parameter, when the open-loop power control is 0, ( )
  • the value is 0 in the open loop power control
  • i is the ith frame of the physical uplink shared channel PUSCH.
  • 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.
  • MCS modulation and coding scheme
  • the maximum contiguous RB data and its corresponding Modulation and Coding Scheme (MCS) are configured for uplink resources.
  • 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.
  • 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.
  • 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.
  • the 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.
  • Embodiment 1 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.
  • 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.
  • 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.
  • 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 ⁇ 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.
  • Single RB conversion signal to noise ratio SingleRB _ SIN is calculated as:
  • SingleRB_SLM SINR + ASINR + ⁇ ⁇ .
  • Step S208 Obtain the signal-to-noise ratio (Single RB_SINR) of the single RB and the TBsizejn required by the bearer service
  • 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.
  • 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.
  • 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, ⁇ :?
  • 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.
  • 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.
  • the first determining module 32 is configured to use the signal-to-noise ratio SINR reported by the terminal, and the terminal
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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
  • 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.
  • 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.

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Abstract

La présente invention porte sur un procédé et un appareil de configuration de ressources de liaison montante. Le procédé comprend les étapes suivantes : une station de base détermine qu'un terminal est dans un état de limitation de puissance, l'état de limitation de puissance indiquant que la puissance d'émission attendue du terminal est supérieure à la puissance d'émission maximale du terminal, et la puissance d'émission attendue satisfaisant une condition du taux d'erreur sur les blocs (BLER) convenus d'avance ; la station de base détermine un rapport signal sur brouillage plus bruit de blocs de ressource individuels (SingleRB_SINR) par utilisation d'un SINR et d'un rapport de marge de puissance (PHR) rapportés par le terminal ; et la station de base détermine la configuration de ressources de liaison montante par utilisation du SingleRB_SINR. Le taux d'utilisation des ressources de liaison montante est amélioré par la présente invention.
PCT/CN2011/074727 2011-02-21 2011-05-26 Procédé et appareil de configuration de ressources de liaison montante WO2012113183A1 (fr)

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