WO2016066031A1 - 一种确定终端调制编码方式mcs的方法、终端和基站 - Google Patents

一种确定终端调制编码方式mcs的方法、终端和基站 Download PDF

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Publication number
WO2016066031A1
WO2016066031A1 PCT/CN2015/092427 CN2015092427W WO2016066031A1 WO 2016066031 A1 WO2016066031 A1 WO 2016066031A1 CN 2015092427 W CN2015092427 W CN 2015092427W WO 2016066031 A1 WO2016066031 A1 WO 2016066031A1
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channel quality
modulation
coding mode
noise ratio
signal
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PCT/CN2015/092427
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English (en)
French (fr)
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王飞
童辉
王启星
侯雪颖
金婧
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***通信集团公司
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Publication of WO2016066031A1 publication Critical patent/WO2016066031A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a method, a terminal, and a base station for determining a terminal modulation and coding mode MCS.
  • the UE User Equipment
  • the CQI Channel quality indicator according to the transmission diversity method
  • the channel quality indicator is reported to the base station eNB.
  • the eNB calculates the beamforming matrix of the UE according to the uplink SRS (Sounding Reference Signal) and the uplink and downlink channel reciprocity, and uses the CQI to estimate the SINR that the UE can support.
  • the appropriate MCS Modulation and Coding Scheme
  • the eNB Since the actual data transmission between the eNB and the UE is beamforming gain, and the CQI reported by the UE is based on the transmit diversity, the beamforming gain is not considered, and the channel quality of the two is not uniform, so the eNB cannot directly base the data.
  • the CQI reported by the UE allocates the MCS to the UE, and needs to be adjusted according to the channel and the beamforming matrix of the UE to determine the MCS.
  • the mismatch between the channel quality of the TxD (transmit diversity) CQI and the actual beamforming transmission results in an inaccurate MCS allocated by the eNB for the UE, which increases the complexity of determining the MCS by the eNB.
  • the currently used solution is the outer loop link adaptation technology OLLA, which is used to compensate for the performance difference between TxD CQI and beamforming transmission, by letting the transmission block error rate of the first transmission reach a certain index (such as 10%) for link adaptation.
  • OLLA outer loop link adaptation technology
  • the link adaptation method is a slow-adjustment method.
  • the convergence speed is slow.
  • the performance is sufficient when the Fullbuffer service is fully buffered.
  • the role of OLLA is small.
  • An object of the present disclosure is to provide a method, a terminal, and a base station for determining a modulation and coding mode MCS of a terminal, which have a fast convergence speed, and adjust the modulation and coding mode of the next transmission according to the channel quality reported by the terminal and the channel quality actually transmitted, which is better. Applicability.
  • an embodiment of the present disclosure provides a method for determining a terminal modulation and coding mode MCS, including:
  • the terminal estimates the first channel quality of the data block received by the first transmission and the second channel quality corresponding to the modulation and coding mode MCS of the data block, and calculates the first channel quality and the second channel quality.
  • Channel quality compensation value
  • the channel quality compensation value is reported to the base station, so that the base station determines the modulation and coding mode MCS used by the terminal according to the channel quality compensation value.
  • the terminal estimates the first channel quality of the first transmitted data block and the second channel quality corresponding to the modulation and coding mode MCS of the data block, and calculates the first channel quality and the first
  • the steps of the channel quality compensation value between the two channel qualities include:
  • the difference is used as the channel quality compensation value.
  • the first channel quality and the second channel quality corresponding to the modulation and coding mode of the data block are estimated according to the detection capability of the first time, and the first channel quality is obtained.
  • the step of the difference of the second channel quality includes:
  • Estimating the first signal to noise of multiple layers of the first transmitted data block according to its own detection capability Determining, according to a first modulation coding mode used by multiple layers of the data block, and determining a second signal to noise ratio corresponding to the first modulation and coding mode by using a preset modulation and coding mode-signal-to-noise ratio conversion table, Obtaining a plurality of differences between the first signal to noise ratio and the second signal to noise ratio, and using the plurality of differences as a difference between the first channel quality and the second channel quality ;or
  • the first channel quality indicator corresponding to the first signal to noise ratio, the second channel quality indicator corresponding to the first modulation and coding mode is determined by using a preset channel quality indicator-modulation coding mode conversion table, and the And a difference between the first channel quality indicator and the second channel quality indicator, where the difference is used as a difference between the first channel quality and the second channel quality.
  • an embodiment of the present disclosure further provides a method for determining a terminal modulation and coding mode MCS, including:
  • the step of determining the modulation and coding mode MCS used by the terminal according to the channel quality compensation value includes:
  • the base station When the base station allocates a modulation and coding mode to the terminal, the base station determines the modulation and coding mode used by the terminal according to the channel quality compensation value reported by the terminal for a period of time.
  • the step of determining, according to the channel quality compensation value reported by the terminal for a period of time before the terminal, the modulation and coding mode used by the terminal includes:
  • Estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value.
  • the optimized channel quality compensation value is a signal to noise ratio
  • the third signal to noise ratio is adjusted according to the optimized channel quality compensation value to obtain a fourth signal to noise ratio
  • the preset modulation and coding mode-signal to noise ratio is adopted. Converting a table to determine a modulation and coding mode corresponding to the fourth signal to noise ratio; or
  • Estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value.
  • the optimized channel quality compensation value is a modulation and coding mode
  • a third modulation coding mode corresponding to the third signal to noise ratio is determined according to a preset modulation and coding mode-signal-to-noise ratio conversion table, according to the optimized channel.
  • the quality compensation value adjusts the third modulation and coding mode to obtain a fourth modulation and coding mode; or
  • the mode-signal-to-noise ratio conversion table determines a third modulation and coding scheme corresponding to the third signal-to-noise ratio, and adjusts the third modulation and coding scheme according to the channel quality compensation value to obtain a fourth modulation and coding scheme.
  • an embodiment of the present disclosure further provides a terminal, including:
  • a processing module configured to: estimate, by the terminal, a first channel quality of the data block that receives the first transmission, and a second channel quality that is corresponding to a modulation and coding mode MCS of the data block, and calculate the first channel quality and the a channel quality compensation value between the second channel qualities;
  • a reporting module configured to report the channel quality compensation value to the base station, so that the base station according to the The channel quality compensation value determines the modulation coding mode MCS used by the terminal.
  • the processing module includes:
  • a processing sub-module configured to: obtain a first channel quality, a second channel quality corresponding to a modulation and coding mode of the data block, and obtain the first channel according to a detection capability of the first time a difference between the quality and the quality of the second channel;
  • the first submodule is configured to use the difference as the channel quality compensation value.
  • an embodiment of the present disclosure further provides a base station, including:
  • Obtaining a module configured to obtain a channel quality compensation value between a first channel quality of a first transmitted data block and a second channel quality corresponding to a modulation and coding mode of the data block;
  • a determining module configured to determine, according to the channel quality compensation value, a modulation and coding mode MCS used by the terminal.
  • the determining module is specifically configured to determine, by the base station, a modulation and coding mode used by the terminal according to a channel quality compensation value reported by the terminal for a period of time when the modulation coding mode is allocated to the terminal.
  • the first channel quality is based on the transmit diversity, and the beamforming gain is not considered.
  • the terminal obtains the first channel quality of the data block transmitted for the first time
  • the terminal obtains the same.
  • Encoding The channel quality compensation value is used to adjust the next transmission to determine the modulation coding mode that is more suitable for the current data transmission. Compared with the existing fixed adjustment scheme, it has higher applicability, and is not only suitable for continuous Fullbuffer. Business, but also for non-continuous FTP services.
  • FIG. 1 is a flow chart 1 showing the steps of a method for determining a modulation coding mode MCS of a terminal according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram showing an application flow of a method for determining a modulation and coding mode MCS of a terminal according to an embodiment of the present disclosure
  • FIG. 3 is a flow chart showing the steps of a method for determining a modulation coding mode MCS of a terminal according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • the present disclosure is directed to the existing method for adapting the slow-adjustment of the outer loop link.
  • the channel quality of the terminal is matched with the channel quality actually transmitted, and the convergence rate is slow. Although it can be used for the Fullbuffer service, it cannot be applied to
  • the problem of continuous FTP service provides a method for determining the MCS of the terminal modulation and coding mode, which has a fast convergence speed and better applicability.
  • a method for determining a modulation and coding mode MCS of a terminal includes:
  • Step 11 The terminal estimates the first channel quality of the data block received by the first transmission and the second channel quality corresponding to the modulation and coding mode MCS of the data block, and calculates the first channel quality and the second Channel quality compensation value between channel qualities;
  • step 12 the channel quality compensation value is reported to the base station, so that the base station determines the modulation and coding mode MCS used by the terminal according to the channel quality compensation value.
  • the first channel quality is based on the transmit diversity, and the beamforming gain is not considered.
  • the terminal obtains the first channel quality of the data block transmitted for the first time
  • the modulation coding mode corresponding to the data block is obtained at the same time.
  • the channel quality compensation value is used to adjust the next transmission to determine the modulation coding mode that is more suitable for the current data transmission. Compared with the existing fixed adjustment scheme, it has higher applicability, and is not only suitable for continuous Fullbuffer. Business, but also for non-continuous FTP services.
  • step 11 includes:
  • Step 111 When obtaining the data block that is transmitted for the first time, estimate the first channel quality and the second channel quality corresponding to the modulation and coding mode of the data block according to the detection capability of the first time, and acquire the Determining a difference between the first channel quality and the second channel quality;
  • step 112 the difference is used as the channel quality compensation value.
  • the terminal When the terminal receives the data block transmitted for the first time, it can estimate the first channel quality according to its own detection capability.
  • the first channel quality includes relevant parameters of channel quality, such as channel quality indication, signal to noise ratio, and the like. Taking the signal-to-noise ratio as an example, all the signals of the data block received by the terminal can analyze the useful signal and the interference signal, and the analysis methods of different terminals are different, but the signal-to-noise ratio can be obtained by obtaining both of them.
  • the second channel quality is corresponding to the modulation and coding mode of the data block, and is also a related parameter of the channel quality, and may be a modulation and coding mode, a channel quality indicator, or a signal to noise ratio. The difference between the first channel quality and the second channel quality is obtained, and the difference is reported to the base station as the channel quality compensation value, so that the base station determines the modulation and coding mode MCS used by the terminal according to the channel quality compensation value.
  • step 111 includes:
  • Step 1111a according to its own detection capability, obtain a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopt a preset modulation and coding mode-signal to noise ratio conversion table. Determining a second signal to noise ratio corresponding to the first modulation and coding mode, acquiring a difference between the first signal to noise ratio and the second signal to noise ratio, and using the difference as the first channel quality a difference from the quality of the second channel; or
  • Step 1111b estimating, according to its own detection capability, a first signal to noise ratio of multiple layers of the first transmitted data block and a first modulation and coding mode used by multiple layers of the data block, and adopting preset modulation a coding mode-signal-to-noise ratio conversion table, determining a second signal-to-noise ratio corresponding to the first modulation and coding mode, and acquiring a plurality of differences between the first signal-to-noise ratio and the second signal-to-noise ratio a value, the difference is used as a difference between the first channel quality and the second channel quality; or
  • Step 1111c Estimate, according to its own detection capability, a first signal to noise ratio of multiple layers of the first transmitted data block and a first modulation and coding mode used by multiple layers of the data block, and adopt preset modulation a coding mode-signal-to-noise ratio conversion table, determining a second signal-to-noise ratio corresponding to the first modulation and coding mode, and acquiring a plurality of differences between the first signal-to-noise ratio and the second signal-to-noise ratio Value, will An average of the plurality of differences as a difference between the first channel quality and the second channel quality; or
  • Step 1111d estimating, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopting a preset modulation and coding mode-signal to noise ratio conversion table. And determining a second modulation and coding mode corresponding to the first signal to noise ratio, acquiring a difference between the second modulation and coding mode and the first modulation and coding mode, and using the difference as the first channel quality a difference from the quality of the second channel;
  • Step 1111e Estimate, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopt a preset channel quality indicator-signal to noise ratio conversion table. Determining a first channel quality indicator corresponding to the first signal to noise ratio, and determining, by using a preset channel quality indicator-modulation coding mode conversion table, a second channel quality indicator corresponding to the first modulation and coding mode, Obtaining a difference between the first tone channel quality indicator and the second channel quality indicator, where the difference is used as a difference between the first channel quality and the second channel quality.
  • step 1111a when the terminal receives the data block transmitted for the first time, the first signal-to-noise ratio SINR_Rx of the data block is first estimated by its own detection capability, and the first use of the data block is also obtained by detecting.
  • the modulation coding mode MCS_Tx is mapped to the corresponding second signal-to-noise ratio SINR_Tx through the MCS_Tx, that is, the SINR_Tx corresponding to the MCS_Tx is determined by a preset modulation coding mode-signal-to-noise ratio conversion table, and the SINR_Tx is the actual transmission process.
  • the noise ratio is different from the estimated SINR_Rx of the terminal, and the difference between the SINR_Rx and the SINR_Tx is obtained as the difference between the first channel quality and the second channel quality, that is, the channel quality compensation value, and the channel quality compensation value is In the form of signal-to-noise ratio (SINR_OFFSET), the SINR_OFFSET can be reported to the base station after being quantized.
  • SINR_OFFSET signal-to-noise ratio
  • the data block may correspond to multiple layer layers.
  • the terminal receives the data block transmitted for the first time, the terminal first estimates the first signal to noise ratio (SINR_Rx) of multiple layers during the transmission by its own detection capability.
  • the first modulation coding mode MCS_Tx used by the multiple layers of the data block can also be obtained by the detection, and then mapped to the corresponding second signal-to-noise ratio SINR_Tx through the MCS_Tx, that is, through a preset modulation and coding mode-signal-to-noise ratio conversion.
  • the table determines the SINR_Tx corresponding to the MCS_Tx, and obtains the SINR_Tx of each layer, which is the signal-to-noise ratio in the actual transmission process, and is different from the estimated SINR_Rx of the terminal. Then, get the SINR_Rx and the one-to-one correspondence of each layer.
  • the difference between the SINR_Tx and the difference between the first channel quality and the second channel quality, that is, the channel quality compensation value, the channel quality compensation value is also in the form of a signal to noise ratio SINR_OFFSET, and the SINR_OFFSET is quantized. Then, it can be reported to the base station, and the base station can take multiple SINR_OFFSET averages to complete the subsequent processing in the subsequent processing.
  • step 1111c the processing of step 1111b is substantially the same, except that after obtaining a plurality of difference values which can be used as the first channel quality and the second channel quality, that is, the channel quality compensation value SINR_OFFSET in the form of signal to noise ratio, A plurality of SINR_OFFSETs are pre-processed to obtain a better SINR_OFFSET quantization and then reported to the base station.
  • step 1111d similar to step 1111a, when the terminal receives the data block transmitted for the first time, firstly, the first signal to noise ratio SINR_Rx of the data block is estimated by its own detection capability, and the data block is also obtained by detecting.
  • the first modulation coding mode MCS_Tx used is then different from the step 1111a, and is mapped to the corresponding second modulation coding mode MCS_Rx by SINR_Rx, that is, the MCS_Rx corresponding to the SINR_Rx is determined by a preset modulation coding mode-signal-to-noise ratio conversion table.
  • the MCS_Rx is the modulation coding mode estimated according to the data block, and is different from the MCS_Tx actually transmitted by the terminal, and the difference between the MCS_Rx and the MCS_Tx is obtained, which can be used as the difference between the first channel quality and the second channel quality, that is, the channel.
  • the quality compensation value at this time, the channel quality compensation value is in the form of modulation coding mode MCS_OFFSET, and the MCS_OFFSET can be reported to the base station.
  • step 1111e when the terminal receives the data block transmitted for the first time, the first signal-to-noise ratio SINR_Rx of the data block is first estimated by its own detection capability, and the data block is also obtained by detecting.
  • a modulation coding mode MCS_Tx is then mapped to the corresponding first channel quality indicator CQI_Rx by SINR_Rx, that is, the CQI_Rx corresponding to SINR_Rx is determined by a preset channel quality indication-signal-to-noise ratio conversion table, and the channel quality indicator is preset.
  • a modulation coding mode conversion table which determines a second channel quality indicator CQI_Tx corresponding to the MCS_Tx, wherein the CQI_Rx is a channel quality indicator estimated according to the data block, and is different from the CQI_Tx actually transmitted by the terminal, and obtains a difference between CQI_Rx and CQI_Tx, It can be used as the difference between the first channel quality and the second channel quality, that is, the channel quality compensation value.
  • the channel quality compensation value is in the form of channel quality indication CQI_OFFSET, and the CQI_OFFSET can be reported to the base station.
  • each layer may also be processed in the manner of step 1111d or step 1111e, and due to channel quality indication, signal to noise ratio, and modulation and coding mode.
  • channel quality indication signal to noise ratio
  • modulation and coding mode there is a mutual corresponding relationship.
  • other manners that can obtain the difference between the first channel quality and the second channel quality in the embodiment of the present disclosure, and the channel quality compensation value should also be regarded as the protection scope of the present disclosure. I will not list them here.
  • the base station when the base station allocates a modulation and coding mode to the terminal, the base station determines the modulation and coding mode used by the terminal according to the channel quality compensation value reported by the terminal for a period of time.
  • Step 21 Determine, according to the channel quality compensation value reported by the terminal for a period of time, a modulation and coding mode used by the terminal, including:
  • Step 211a Estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal, and acquiring a channel quality compensation value that is newly reported by the terminal in a preset time, when the channel quality compensation value is a signal-to-noise ratio, according to the Adjusting, by the channel quality compensation value, the third signal to noise ratio to obtain a fourth signal to noise ratio, and determining, by using a preset modulation and coding mode-signal to noise ratio conversion table, a modulation and coding mode corresponding to the fourth signal to noise ratio; or
  • Step 211b Estimating a third signal to noise ratio according to the first channel quality reported by the terminal, acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value.
  • the optimized channel quality compensation value is a signal to noise ratio
  • adjusting the third signal to noise ratio according to the optimized channel quality compensation value to obtain a fourth signal to noise ratio by using a preset modulation and coding manner - a signal to noise ratio conversion table that determines a modulation and coding mode corresponding to the fourth signal to noise ratio; or
  • Step 211c Estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal, acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value. And determining, by the preset modulation and coding mode-signal-to-noise ratio conversion table, a third modulation and coding mode corresponding to the third signal-to-noise ratio according to the method, when the optimized channel quality compensation value is a modulation and coding mode, according to the Optimizing the channel quality compensation value to adjust the third modulation and coding mode to obtain a fourth modulation and coding mode; or
  • Step 211d Estimate the third signal-to-noise ratio according to the first channel quality reported by the terminal, and obtain the channel quality compensation value that is newly reported by the terminal in the preset time.
  • the channel quality compensation value is the modulation and coding mode
  • the preset is adopted.
  • a modulation coding mode-signal-to-noise ratio conversion table determining a third modulation coding mode corresponding to the third signal-to-noise ratio, and adjusting the third modulation coding mode according to the channel quality compensation value to obtain a fourth modulation coding the way.
  • the channel quality compensation value can be a signal to noise ratio or a modulation coding mode or a channel quality indicator.
  • the base station estimates a third signal to noise ratio SINR_Old according to the first channel quality reported by the terminal, where the first channel quality includes a CQI based on the transmission diversity TxD, and the base station side information is included in the estimation, including beamforming. Matrix and / or channel, etc.
  • the channel quality compensation value newly reported by the terminal in the preset time is obtained.
  • the channel quality compensation value is a form of signal to noise ratio SINR_OFFSET
  • the noise ratio conversion table determines a modulation and coding scheme corresponding to SINR_New, and allocates the modulation and coding scheme to the terminal, and uses a new modulation and coding scheme to improve data transmission quality in the new transmission.
  • step 211b similar to step 211a, the base station estimates a third signal to noise ratio SINR_Old according to the first channel quality reported by the terminal, where the first channel quality includes a CQI based on the transmission diversity TxD, and the base station side information is used in the estimation. Includes beamforming matrices and/or channels, and the like. The difference is that all channel quality compensation values reported by the terminal in the preset time are obtained, and the channel quality compensation values are smoothed to obtain an optimized channel quality compensation value.
  • a signal to noise ratio conversion table that determines a modulation and coding scheme corresponding to SINR_New, assigns the modulation and coding scheme to the terminal, and uses a new modulation and coding scheme to improve data transmission quality in the new transmission.
  • step 211c the same base station estimates a third signal to noise ratio SINR_Old according to the first channel quality reported by the terminal, where the first channel quality includes a CQI based on the transmission diversity TxD, and the base station side information including the beam is used in the estimation. Forming matrices and/or channels, etc. Then, all channel quality compensation values reported by the terminal in the preset time are obtained, and the channel quality compensation values are smoothed to obtain an optimized channel quality compensation value.
  • the optimized channel quality compensation value is the form of the modulation and coding mode Ave_MCS_OFFSET, and the SINR_Old is first mapped to the modulation and coding mode, that is, the third corresponding to the SINR_Old is determined by the preset modulation and coding mode-signal-to-noise ratio conversion table.
  • Modulating the coding mode MCS_Old, and then adjusting the MCS_Old according to the Ave_MCS_OFFSET to obtain the adjusted fourth modulation coding mode MCS_New, such as MCS_New MCS_Old+ Ave_MCS_OFFSET, after which the modulation and coding mode of the MCS_New is allocated to the terminal, and in the new transmission, the new modulation and coding scheme is used to improve the data transmission quality.
  • the base station estimates the third signal to noise ratio SINR_Old according to the first channel quality reported by the terminal, where the first channel quality includes the CQI based on the transmission diversity TxD, and the base station side information is used in the estimation. Beamforming matrix and/or channel, etc.
  • the channel quality compensation value is the format MCS_OFFSET of the modulation and coding mode
  • the SINR_Old is first mapped to the modulation and coding mode, that is, the third modulation code corresponding to the SINR_Old is determined by using a preset modulation and coding mode-signal-to-noise ratio conversion table.
  • the channel quality compensation value may be in the form of channel quality indication in the above steps. According to the same manner as the above steps, the corresponding processing is performed, and the modulation and demodulation mode allocated to the terminal is also determined as the protection scope of the present disclosure, which is not enumerated here.
  • the terminal performs S201, and when receiving the data block transmitted for the first time, estimates the first channel quality and the second channel corresponding to the modulation and coding mode of the data block according to its own detection capability.
  • the first channel quality includes relevant parameters of channel quality, such as channel quality indication, signal to noise ratio, and the like.
  • the second channel quality includes the same correlation parameter as the quality of the first channel, and the difference between the first channel quality and the second channel quality is obtained, and the difference is used as the channel quality compensation value, and the channel quality compensation value is reported to the S202.
  • Base station In this way, the base station can determine the modulation and coding mode MCS used by the terminal according to the channel quality compensation value and assign it to the terminal as in S203.
  • the channel quality compensation value may be implemented by a channel quality indicator, a signal to noise ratio, or a modulation and demodulation method. In this way, the channel quality compensation value is used to implement the appropriate adjustment for the next transmission, and the modulation coding method more suitable for the current data transmission is determined, which has higher applicability than the existing fixed adjustment scheme, and is not only applicable to continuity. Fullbuffer business, but also for non-continuity The FTP business improves throughput.
  • an embodiment of the present disclosure further provides a method for determining a terminal modulation and coding mode MCS, including:
  • Step 31 Obtain a channel quality compensation value between a first channel quality of a data block transmitted by the terminal and a second channel quality corresponding to a modulation and coding mode of the data block.
  • Step 32 Determine, according to the channel quality compensation value, a modulation and coding mode MCS used by the terminal.
  • the channel quality compensation value is obtained by estimating, by the terminal, the first channel quality and the second channel quality corresponding to the modulation and coding mode of the data block according to the detection capability of the terminal, and obtaining the a difference between the first channel quality and the second channel quality, and the difference is used as the channel quality compensation value.
  • the terminal obtains the data block that is transmitted for the first time
  • the first channel quality and the second channel quality corresponding to the modulation and coding mode of the data block are obtained according to the detection capability of the terminal, and the first channel quality and the The steps of the difference in the quality of the second channel include:
  • Step 411a estimating, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopting a preset modulation and coding mode-signal to noise ratio conversion table. Determining a second signal to noise ratio corresponding to the first modulation and coding mode, acquiring a difference between the first signal to noise ratio and the second signal to noise ratio, and using the difference as the first channel quality a difference from the quality of the second channel; or
  • Step 411b Estimate, according to its own detection capability, a first signal to noise ratio of multiple layers of the first transmitted data block and a first modulation and coding mode used by multiple layers of the data block, and adopt preset modulation a coding mode-signal-to-noise ratio conversion table, determining a second signal-to-noise ratio corresponding to the first modulation and coding mode, and acquiring a plurality of differences between the first signal-to-noise ratio and the second signal-to-noise ratio a value, the difference is used as a difference between the first channel quality and the second channel quality; or
  • Step 411c according to the detection capability of the self, the first signal to noise ratio of the plurality of layers of the data block and the first modulation and coding mode used by the multiple layers of the data block are obtained, and the preset modulation is adopted.
  • a coding mode-signal-to-noise ratio conversion table determining a second signal-to-noise ratio corresponding to the first modulation and coding mode, and acquiring a plurality of differences between the first signal-to-noise ratio and the second signal-to-noise ratio a value, the average of the plurality of differences is used as a difference between the first channel quality and the second channel quality; or
  • Step 411d according to its own detection capability, obtain a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopt a preset modulation and coding mode-signal to noise ratio conversion table. And determining a second modulation and coding mode corresponding to the first signal to noise ratio, acquiring a difference between the second modulation and coding mode and the first modulation and coding mode, and using the difference as the first channel quality a difference from the quality of the second channel;
  • Step 411e Estimating, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopting a preset channel quality indicator-signal to noise ratio conversion table. Determining a first channel quality indicator corresponding to the first signal to noise ratio, and determining, by using a preset channel quality indicator-modulation coding mode conversion table, a second channel quality indicator corresponding to the first modulation and coding mode, Obtaining a difference between the first tone channel quality indicator and the second channel quality indicator, where the difference is used as a difference between the first channel quality and the second channel quality.
  • step 32 includes:
  • step 32' when the base station allocates a modulation and coding mode to the terminal, the base station determines the modulation and coding mode used by the terminal according to the channel quality compensation value reported by the terminal for a period of time.
  • step 32' includes:
  • Step 32'1a estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal, and acquiring a channel quality compensation value that is newly reported by the terminal in a preset time, when the channel quality compensation value is a signal-to-noise ratio, according to The channel quality compensation value adjusts the third signal to noise ratio to obtain a fourth signal to noise ratio, and determines a modulation code corresponding to the fourth signal to noise ratio by using a preset modulation and coding mode-signal to noise ratio conversion table. Way; or
  • Step 32 '1b estimating a third signal to noise ratio according to the first channel quality reported by the terminal, acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality.
  • a compensation value when the optimized channel quality compensation value is a signal to noise ratio, adjusting the third signal to noise ratio according to the optimized channel quality compensation value to obtain a fourth signal to noise ratio, by using a preset modulation code a mode-signal-to-noise ratio conversion table that determines a modulation and coding mode corresponding to the fourth signal-to-noise ratio; or
  • step 32'1c the third signal to noise ratio is estimated according to the first channel quality reported by the terminal, and the channel quality compensation value reported by the terminal in the preset time period is obtained, and the channel quality compensation value is smoothed to obtain an optimized channel quality.
  • a compensation value at which the optimized channel quality compensation value is a modulation coding side And determining, by a preset modulation and coding mode-signal-to-noise ratio conversion table, a third modulation coding mode corresponding to the third signal-to-noise ratio, and encoding the third modulation code according to the optimized channel quality compensation value Mode adjustment to obtain a fourth modulation coding mode; or
  • Step 32'1d estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal, and acquiring a channel quality compensation value that is newly reported by the terminal in a preset time, when the channel quality compensation value is a modulation and coding mode, a preset modulation and coding mode-signal-to-noise ratio conversion table, determining a third modulation and coding mode corresponding to the third signal-to-noise ratio, and adjusting the third modulation and coding mode according to the channel quality compensation value to obtain a fourth Modulation coding method.
  • the base station obtains the first channel quality of the data block transmitted by the terminal and the second channel corresponding to the modulation and coding mode of the data block.
  • the modulation coding mode MCS used by the terminal is determined according to the channel quality compensation value.
  • the channel quality compensation value is used to adjust the next transmission to determine the modulation coding mode that is more suitable for the current data transmission. Compared with the existing fixed adjustment scheme, it has higher applicability, and is not only suitable for continuous Fullbuffer. Business, but also for non-continuous FTP services, improving throughput.
  • the method is a method for achieving the expected effect by the method for determining the terminal modulation and coding mode MCS, and the implementation method for determining the terminal modulation and coding mode MCS is applicable to the method, and the same technical effect can be achieved.
  • an embodiment of the present disclosure further provides a terminal, including:
  • the processing module 10 is configured to: the terminal estimates the first channel quality of the data block received by the first transmission, and the second channel quality corresponding to the modulation and coding mode MCS of the data block, and calculates the quality and location of the first channel a channel quality compensation value between the second channel qualities;
  • the reporting module 20 is configured to report the channel quality compensation value to the base station, so that the base station determines the modulation and coding mode MCS used by the terminal according to the channel quality compensation value.
  • the processing module includes:
  • a processing sub-module configured to: obtain a first channel quality, a second channel quality corresponding to a modulation and coding mode of the data block, and obtain the first channel according to a detection capability of the first time a difference between the quality and the quality of the second channel;
  • the first submodule is configured to use the difference as the channel quality compensation value.
  • the processing submodule includes:
  • a first processing unit configured to obtain, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopt a preset modulation and coding manner- a noise ratio conversion table, determining a second signal to noise ratio corresponding to the first modulation and coding mode, acquiring a difference between the first signal to noise ratio and the second signal to noise ratio, and using the difference as the a difference between the quality of the first channel and the quality of the second channel;
  • a second processing unit configured to estimate, according to its own detection capability, a first signal to noise ratio of the plurality of layers of the first transmitted data block and a first modulation and coding mode used by the multiple layers of the data block, and pass the a preset modulation and coding mode-signal-to-noise ratio conversion table, determining a second signal-to-noise ratio corresponding to the first modulation and coding mode, and obtaining the first signal-to-noise ratio and the second signal-to-noise ratio corresponding to each other a plurality of differences, the difference being used as a difference between the first channel quality and the second channel quality;
  • a third processing unit configured to estimate, according to its own detection capability, a first signal to noise ratio of the plurality of layers of the first transmitted data block and a first modulation and coding mode used by the multiple layers of the data block, and pass the a preset modulation and coding mode-signal-to-noise ratio conversion table, determining a second signal-to-noise ratio corresponding to the first modulation and coding mode, and obtaining the first signal-to-noise ratio and the second signal-to-noise ratio corresponding to each other a plurality of differences, the average of the plurality of differences being used as a difference between the first channel quality and the second channel quality;
  • a fourth processing unit configured to estimate, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopt a preset modulation and coding manner- a noise ratio conversion table, determining a second modulation and coding mode corresponding to the first signal to noise ratio, acquiring a difference between the second modulation and coding mode and the first modulation and coding mode, and using the difference as the a difference between the quality of the first channel and the quality of the second channel;
  • a fifth processing unit configured to obtain, according to its own detection capability, a first signal to noise ratio of the first transmitted data block and a first modulation and coding mode used by the data block, and adopt a preset channel quality indicator-letter a noise ratio conversion table, determining a first tone channel quality indicator corresponding to the first signal to noise ratio, and determining, by using a preset channel quality indicator-modulation coding mode conversion table, a second corresponding to the first modulation and coding mode And determining, by the channel quality indicator, a difference between the first channel quality indicator and the second channel quality indicator, where the difference is used as a difference between the first channel quality and the second channel quality.
  • the base station determines the modulation and coding mode used by the terminal according to the channel quality compensation value reported by the terminal for a period of time when the modulation coding mode is allocated to the terminal.
  • the step of determining, according to the channel quality compensation value reported by the terminal for a period of time before the terminal, the modulation and coding mode used by the terminal includes:
  • Estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value.
  • the optimized channel quality compensation value is a signal to noise ratio
  • the third signal to noise ratio is adjusted according to the optimized channel quality compensation value to obtain a fourth signal to noise ratio
  • the preset modulation and coding mode-signal to noise ratio is adopted. Converting a table to determine a modulation and coding mode corresponding to the fourth signal to noise ratio; or
  • Estimating a third signal-to-noise ratio according to the first channel quality reported by the terminal acquiring a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value.
  • the optimized channel quality compensation value is a modulation and coding mode
  • a third modulation coding mode corresponding to the third signal to noise ratio is determined according to a preset modulation and coding mode-signal-to-noise ratio conversion table, according to the optimized channel.
  • the quality compensation value adjusts the third modulation and coding mode to obtain a fourth modulation and coding mode; or
  • the mode-signal-to-noise ratio conversion table determines a third modulation and coding scheme corresponding to the third signal-to-noise ratio, and adjusts the third modulation and coding scheme according to the channel quality compensation value to obtain a fourth modulation and coding scheme.
  • the terminal of the embodiment of the present disclosure estimates the first channel quality according to its own detection capability.
  • the first channel quality includes relevant parameters of channel quality, such as channel quality indication, signal to noise ratio, and the like.
  • the modulation coding method corresponding to the data block is obtained.
  • the second channel quality, the second channel quality includes the same correlation parameter as the first channel quality, and the difference between the first channel quality and the second channel quality is obtained, and the difference is reported to the base station as the channel quality compensation value.
  • the base station can be configured to determine the modulation and coding mode MCS used by the terminal according to the channel quality compensation value.
  • the channel quality compensation value may be implemented by a channel quality indicator, a signal to noise ratio, or a modulation and demodulation method.
  • the terminal reports the channel quality compensation value, and the channel quality compensation value is used to implement the appropriate adjustment for the next transmission, and the modulation coding mode more suitable for the current data transmission is determined, which is higher than the existing fixed adjustment scheme. Applicability not only applies to continuous Fullbuffer services, but also to non-continuous FTP services, improving throughput.
  • the terminal is a terminal to which the method for determining the terminal modulation and coding scheme MCS is applied, and the implementation manner of the method for determining the modulation and coding scheme MCS of the terminal is applicable to the terminal, and the same technical effect can be achieved.
  • an embodiment of the present disclosure further provides a base station, including:
  • the obtaining module 30 is configured to obtain a channel quality compensation value between a first channel quality of the first transmitted data block and a second channel quality corresponding to the modulation and coding mode of the data block.
  • the determining module 40 is configured to determine, according to the channel quality compensation value, a modulation and coding mode MCS used by the terminal.
  • the channel quality compensation value is obtained by estimating, by the terminal, the first channel quality and the second channel quality corresponding to the modulation and coding mode of the data block according to the detection capability of the terminal, and obtaining the a difference between the first channel quality and the second channel quality, and the difference is used as the channel quality compensation value.
  • the terminal obtains the data block that is transmitted for the first time
  • the first channel quality and the second channel quality corresponding to the modulation and coding mode of the data block are obtained according to the detection capability of the terminal, and the first channel quality is obtained.
  • the step of the difference of the second channel quality includes:
  • Estimating the first signal to noise of multiple layers of the first transmitted data block according to its own detection capability Determining, according to a first modulation coding mode used by multiple layers of the data block, and determining a second signal to noise ratio corresponding to the first modulation and coding mode by using a preset modulation and coding mode-signal-to-noise ratio conversion table, Obtaining a plurality of differences between the first signal to noise ratio and the second signal to noise ratio, and using the plurality of differences as a difference between the first channel quality and the second channel quality ;or
  • the first channel quality indicator corresponding to the first signal to noise ratio, the second channel quality indicator corresponding to the first modulation and coding mode is determined by using a preset channel quality indicator-modulation coding mode conversion table, and the And a difference between the first channel quality indicator and the second channel quality indicator, where the difference is used as a difference between the first channel quality and the second channel quality.
  • the determining module is specifically configured to determine, by the base station, a modulation and coding mode used by the terminal according to a channel quality compensation value reported by the terminal for a period of time when the modulation coding mode is allocated to the terminal.
  • the determining module includes:
  • a first determining submodule configured to estimate a third signal to noise ratio according to the first channel quality reported by the terminal, and obtain a channel quality compensation value that is newly reported by the terminal in a preset time, where the channel quality compensation value is a signal to noise ratio And adjusting, according to the channel quality compensation value, the third signal to noise ratio to obtain a fourth signal to noise ratio, and determining, by using a preset modulation and coding mode-signal to noise ratio conversion table, corresponding to the fourth signal to noise ratio.
  • a second determining submodule configured to estimate a third signal to noise ratio according to the first channel quality reported by the terminal, Obtaining a channel quality compensation value reported by the terminal in the preset time period, and smoothing the channel quality compensation value to obtain an optimized channel quality compensation value, where the optimized channel quality compensation value is a signal to noise ratio, according to the The optimized channel quality compensation value adjusts the third signal to noise ratio to obtain a fourth signal to noise ratio, and determines a modulation corresponding to the fourth signal to noise ratio by using a preset modulation and coding mode-signal to noise ratio conversion table.
  • a third determining submodule configured to estimate a third signal to noise ratio according to the first channel quality reported by the terminal, obtain a channel quality compensation value reported by the terminal in the preset time period, and perform smoothing processing on the channel quality compensation value to obtain an optimization a channel quality compensation value, when the optimized channel quality compensation value is a modulation coding mode, determining a third modulation code corresponding to the third signal to noise ratio by using a preset modulation and coding mode-signal-to-noise ratio conversion table And adjusting the third modulation and coding mode according to the optimized channel quality compensation value to obtain a fourth modulation and coding mode;
  • a fourth determining submodule configured to estimate a third signal to noise ratio according to the first channel quality reported by the terminal, and obtain a channel quality compensation value that is newly reported by the terminal in a preset time, where the channel quality compensation value is a modulation and coding mode. And determining, by using a preset modulation and coding mode-signal-to-noise ratio conversion table, a third modulation and coding mode corresponding to the third signal-to-noise ratio, and adjusting the third modulation and coding mode according to the channel quality compensation value. A fourth modulation coding mode is obtained.
  • the base station of the embodiment of the present disclosure obtains the channel quality compensation value between the first channel quality of the first transmitted data block and the second channel quality corresponding to the modulation and coding mode of the data block. And determining, according to the channel quality compensation value, the modulation and coding mode MCS used by the terminal.
  • the channel quality compensation value is used to adjust the next transmission to determine the modulation coding mode that is more suitable for the current data transmission. Compared with the existing fixed adjustment scheme, it has higher applicability, and is not only suitable for continuous Fullbuffer. Business, but also for non-continuous FTP services, improving throughput.
  • the base station is a base station to which the method for determining the terminal modulation and coding scheme MCS is applied, and the implementation method of the method for determining the modulation and coding scheme MCS of the terminal is applicable to the base station, and the same technical effect can be achieved.
  • the disclosed apparatus/device and method may be implemented in other manners.
  • the device/device embodiments described above are merely illustrative.
  • the division of the modules and units is only a logical function division.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or modules, and may be electrical, mechanical or other forms. of.
  • the modules and units described above as separate components may or may not be physically separated.
  • the components displayed as units may or may not be physical units; they may be located in one place or distributed to multiple network modules. Above; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module/unit in each embodiment of the present disclosure may be integrated into one processing module/unit, or each module/unit may be separately used as one module/unit, or two or more modules.
  • the unit/unit is integrated in a module/unit; the above-mentioned integrated module/unit can be implemented in the form of hardware or in the form of hardware plus software function modules.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk.
  • the above-described integrated modules/units of the present disclosure may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as separate products.
  • the technical solution of the embodiments of the present disclosure may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本公开提供一种确定终端调制编码方式MCS的方法、终端及基站。该方法包括：终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；将所述信道质量补偿值上报给基站，以使基站根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。

Description

一种确定终端调制编码方式MCS的方法、终端和基站
相关申请的交叉引用
本申请主张在2014年10月29日在中国提交的中国专利申请号No.201410593893.5的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及无线通信技术领域，特别是指一种确定终端调制编码方式MCS的方法、终端及基站。
背景技术
在现有标准中，TD-LTE(Time Division Long Term Evolution，时分长期演进)***中使用波束赋形传输时，UE(User Equipment，用户设备)按照传输分集transmit diversity方式计算CQI(Channel quality indicator，信道质量指示)并上报给基站eNB，eNB根据上行SRS(Sounding Reference Signal，信道探测参考信号)和上下行信道互易性计算UE的波束赋形矩阵，并结合CQI估计UE可以支持的SINR(Signal to Interference plus Noise Ratio，信噪比)，为UE分配合适的MCS(Modulation and Coding Scheme，调制与编码策略)。由于eNB与UE之间的实际数据传输是有波束赋形增益的，而UE上报的CQI是基于transmit diversity的，没有考虑波束赋形增益，这两者的信道质量并不一致，因此eNB无法直接根据UE上报的CQI为UE分配MCS，还需要根据UE的信道和波束赋形矩阵等进行调整后确定MCS。这种TxD(transmit diversity，传输分集)CQI和实际波束赋形传输的信道质量不匹配导致eNB为UE分配的MCS不准确，增加了eNB确定MCS的复杂度。
目前常用的解决方案是外环链路自适应技术OLLA，OLLA用于补偿TxD CQI和波束赋形传输之间的性能差异，通过让第一次传输的传输块误码率达到某一指标(如10％)来进行链路自适应。
这种链路自适应方法属于一种慢速调整方法，收敛速度慢，用于满缓存Fullbuffer业务时性能还可以，用于文件传输FTP业务时由于业务的不连续性， OLLA的作用很小。
发明内容
本公开的目的是提供一种确定终端调制编码方式MCS的方法、终端和基站，收敛速度快，根据终端上报信道质量和实际传输的信道质量对下次传输的调制编码方式进行调整，具有更好的适用性。
为达到上述目的，本公开的实施例提供一种确定终端调制编码方式MCS的方法，包括：
终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；
将所述信道质量补偿值上报给基站，以使基站根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值的步骤包括：
获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值；
将所述差值作为所述信道质量补偿值。
其中，所述获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值的步骤包括：
根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取所述第一信噪比和所述第二信噪比的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；或者
根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪 比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值作为所述第一信道质量与所述第二信道质量的差值；或者
根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值的平均值作为所述第一信道质量与所述第二信道质量的差值；或者
根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一信噪比对应的第二调制编码方式，获取所述第二调制编码方式和所述第一调制编码方式的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的信道质量指示-信噪比转换表，确定与所述第一信噪比对应的第一调信道质量指示，通过预设的信道质量指示-调制编码方式转换表，确定与所述第一调制编码方式对应的第二信道质量指示，获取所述第一调信道质量指示和所述第二信道质量指示的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值。
为达到上述目的，本公开的实施例还提供了一种确定终端调制编码方式MCS的方法，包括：
获得终端上报的第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值；
根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述根据所述信道质量补偿值，确定终端使用的调制编码方式MCS的步骤包括：
基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
其中，所述根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式的步骤包括：
根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为信噪比时，根据所述信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为信噪比时，根据所述优化的信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述优化的信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式；或者
根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式。
为达到上述目的，本公开的实施例还提供了一种终端，包括：
处理模块，用于终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；
上报模块，用于将所述信道质量补偿值上报给基站，以使基站根据所述 信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述处理模块包括：
处理子模块，用于获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值；
第一子模块，用于将所述差值作为所述信道质量补偿值。
为达到上述目的，本公开的实施例还提供了一种基站，包括：
获得模块，用于获得终端上报的第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值；
确定模块，用于根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述确定模块具体用于基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
本公开的上述技术方案的有益效果如下：
本公开实施例的确定终端调制编码方式MCS的方法，第一信道质量是基于transmit diversity的，没有考虑波束赋形增益，终端获得第一次传输的数据块的第一信道质量时，同时获得该数据块的调制编码方式对应的第二信道质量，并计算第一信道质量和第二信道质量之间的信道质量补偿值，然后上报给基站，以使基站能够根据该补偿值确定终端使用的调制编码方式。通过信道质量补偿值实现了对下次传输的适当调整，确定更适合当前数据传输的调制编码方式，相较于现有进行固定调整的方案，具有更高的适用性，不仅适用连续性的Fullbuffer业务，而且也适用非连续性的FTP业务。
附图说明
图1表示本公开实施例的确定终端调制编码方式MCS的方法的步骤流程示意图一；
图2表示本公开实施例的确定终端调制编码方式MCS的方法的应用流程示意图；
图3表示本公开实施例的确定终端调制编码方式MCS的方法的步骤流程 示意图二；
图4表示本公开实施例的终端的结构示意图；
图5表示本公开实施例的基站的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本公开针对现有的慢速调整的方法外环链路自适应技术，通过将终端上报的信道质量和实际传输的信道质量匹配，收敛速率慢，虽然能用于Fullbuffer业务，但是不能适用于不连续性FTP业务等问题，提供一种确定终端调制编码方式MCS的方法，收敛速度快，具有更好的适用性。
如图1所示，本公开实施例的一种确定终端调制编码方式MCS的方法，包括：
步骤11，终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；；
步骤12，将所述信道质量补偿值上报给基站，以使基站根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
在本公开实施例中，第一信道质量是基于transmit diversity的，没有考虑波束赋形增益，终端获得第一次传输的数据块的第一信道质量时，同时获得该数据块的调制编码方式对应的第二信道质量，并计算第一信道质量和第二信道质量之间的信道质量补偿值，然后上报给基站，以使基站能够根据该补偿值确定终端使用的调制编码方式。通过信道质量补偿值实现了对下次传输的适当调整，确定更适合当前数据传输的调制编码方式，相较于现有进行固定调整的方案，具有更高的适用性，不仅适用连续性的Fullbuffer业务，而且也适用非连续性的FTP业务。
其中，步骤11包括：
步骤111，获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所 述第一信道质量和所述第二信道质量的差值；
步骤112，将所述差值作为所述信道质量补偿值。
终端接收到第一次传输的数据块时，能够根据自身的检测能力估算得到第一信道质量。第一信道质量包含了信道质量的相关参数，如信道质量指示、信噪比等。以信噪比为例，终端接收到的数据块的所有信号，其中能够分析出有用信号和干扰信号，不同终端的分析方式不同，但只要获取其中两者就可得到信噪比。第二信道质量是与该数据块的调制编码方式对应，也是信道质量的相关参数，可以是调制编码方式、信道质量指示或信噪比等。获取到第一信道质量与第二信道质量的差值，再将该差值作为信道质量补偿值上报给基站，就可使基站根据该信道质量补偿值，确定终端使用的调制编码方式MCS。
应该了解的是，信道质量的相关参数信道质量指示、信噪比以及调制编码方式之间是存在相互对应的关系的，如在已知信噪比时，可以通过信噪比映射到对应的调制编码方式和信道质量指示，因此，在本公开上述实施例的基础上，步骤111包括：
步骤1111a，根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取所述第一信噪比和所述第二信噪比的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；或者
步骤1111b，根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值作为所述第一信道质量与所述第二信道质量的差值；或者
步骤1111c，根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将 所述多个差值的平均值作为所述第一信道质量与所述第二信道质量的差值；或者
步骤1111d，根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一信噪比对应的第二调制编码方式，获取所述第二调制编码方式和所述第一调制编码方式的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
步骤1111e，根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的信道质量指示-信噪比转换表，确定与所述第一信噪比对应的第一调信道质量指示，通过预设的信道质量指示-调制编码方式转换表，确定与所述第一调制编码方式对应的第二信道质量指示，获取所述第一调信道质量指示和所述第二信道质量指示的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值。
在步骤1111a中，当终端接收到第一次传输的数据块时，首先通过自身的检测能力估算出该数据块的第一信噪比SINR_Rx，同时通过检测也可得到该数据块使用的第一调制编码方式MCS_Tx，再通过MCS_Tx映射到对应的第二信噪比SINR_Tx，即通过预设的调制编码方式-信噪比转换表，确定与MCS_Tx对应的SINR_Tx，该SINR_Tx就是实际传输过程中的信噪比，与终端估算的SINR_Rx是存在差异的，获取SINR_Rx和SINR_Tx的差值，可作为第一信道质量与第二信道质量的差值，也就是信道质量补偿值，此时信道质量补偿值是以信噪比的形式SINR_OFFSET，该SINR_OFFSET做量化处理后就可上报给基站。
在步骤1111b中，数据块可能对应多个层layer，当终端接收到第一次传输的数据块时，首先通过自身的检测能力估算出此次传输时的多个layer的第一信噪比SINR_Rx，同时通过检测也可得到该数据块的多个layer使用的第一调制编码方式MCS_Tx，再通过MCS_Tx映射到对应的第二信噪比SINR_Tx，即通过预设的调制编码方式-信噪比转换表，确定与MCS_Tx对应的SINR_Tx，得到每个layer的SINR_Tx，该SINR_Tx就是实际传输过程中的信噪比，与终端估算的SINR_Rx是存在差异。然后，获取每层一一对应的SINR_Rx和 SINR_Tx的差值，得到多个可作为第一信道质量与第二信道质量的差值，也就是信道质量补偿值，此时信道质量补偿值也是以信噪比的形式SINR_OFFSET，该SINR_OFFSET做量化处理后就可上报给基站，基站在后续处理时可取多个SINR_OFFSET平均值完成后续处理。
在步骤1111c中，与步骤1111b的处理大致相同，只是在得到多个可作为第一信道质量与第二信道质量的差值，也就是以信噪比的形式的信道质量补偿值SINR_OFFSET后，将多个SINR_OFFSET进行预处理取平均值得到一个较佳的SINR_OFFSET量化后上报到基站。
在步骤1111d中，类似步骤1111a，当终端接收到第一次传输的数据块时，首先通过自身的检测能力估算出该数据块的第一信噪比SINR_Rx，同时通过检测也可得到该数据块使用的第一调制编码方式MCS_Tx，然后不同于步骤1111a，是通过SINR_Rx映射到对应的第二调制编码方式MCS_Rx，即通过预设的调制编码方式-信噪比转换表，确定与SINR_Rx对应的MCS_Rx，该MCS_Rx就是根据数据块估算的调制编码方式，与终端实际传输的MCS_Tx是存在差异的，获取MCS_Rx和MCS_Tx的差值，可作为第一信道质量与第二信道质量的差值，也就是信道质量补偿值，此时信道质量补偿值是以调制编码方式的形式MCS_OFFSET，该MCS_OFFSET就可上报给基站。
而在步骤1111e中，当终端接收到第一次传输的数据块时，首先通过自身的检测能力估算出该数据块的第一信噪比SINR_Rx，同时通过检测也可得到该数据块使用的第一调制编码方式MCS_Tx，然后通过SINR_Rx映射到对应的第一信道质量指示CQI_Rx，即通过预设的信道质量指示-信噪比转换表，确定与SINR_Rx对应的CQI_Rx，而且通过预设的信道质量指示-调制编码方式转换表，确定与MCS_Tx对应的第二信道质量指示CQI_Tx，其中CQI_Rx就是根据数据块估算的信道质量指示，与终端实际传输的CQI_Tx是存在差异的，获取CQI_Rx和CQI_Tx的差值，可作为第一信道质量与第二信道质量的差值，也就是信道质量补偿值，此时信道质量补偿值是以信道质量指示的形式CQI_OFFSET，该CQI_OFFSET就可上报给基站。
当然，当数据块对应多个layer时，也可采用步骤1111d或步骤1111e的方式对每个layer处理，而且由于信道质量指示、信噪比以及调制编码方式之 间存在相互对应的关系，除上述的方式外，其他能够实现得到本公开实施例中第一信道质量与第二信道质量的差值，信道质量补偿值的方式也应视为本公开的保护范围，在此不一一列举。
在本公开的实施例中，基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
其中，步骤21，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式，包括：
步骤211a，根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为信噪比时，根据所述信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
步骤211b，根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为信噪比时，根据所述优化的信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
步骤211c，根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述优化的信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式；或者
步骤211d，根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式。
通过上述内容可知，信道质量补偿值可以是信噪比或调制编码方式或信道质量指示。在步骤211a中，基站会根据终端上报的第一信道质量估算第三信噪比SINR_Old，其中，第一信道质量包括基于传输分集TxD的CQI，在估算中会用到基站侧信息包括波束赋形矩阵和/或信道等。同时，获取终端在之前预设时间内最新上报的信道质量补偿值。此时，信道质量补偿值是信噪比的形式SINR_OFFSET，根据该SINR_OFFSET对SINR_Old进行调整得到调整后的第四信噪比SINR_New，如SINR_New＝SINR_Old+SINR_OFFSET，之后通过预设的调制编码方式-信噪比转换表，确定与SINR_New对应的调制编码方式，将该调制编码方式分配给终端，在新的传输中，使用新的调制编码方式提高数据传输质量。
在步骤211b中，类似步骤211a，基站会根据终端上报的第一信道质量估算第三信噪比SINR_Old，其中，第一信道质量包括基于传输分集TxD的CQI，在估算中会用到基站侧信息包括波束赋形矩阵和/或信道等。不同的是，会获取终端在之前预设时间内上报的所有信道质量补偿值，对这些信道质量补偿值进行平滑处理得到优化的信道质量补偿值。此时，优化的信道质量补偿值是信噪比的形式Ave_SINR_OFFSET，根据该Ave_SINR_OFFSET对SINR_Old进行调整得到调整后的第四信噪比SINR_New，如SINR_New＝SINR_Old+Ave_SINR_OFFSET，之后通过预设的调制编码方式-信噪比转换表，确定与SINR_New对应的调制编码方式，将该调制编码方式分配给终端，在新的传输中，使用新的调制编码方式提高数据传输质量。
在步骤211c中，同样的基站会根据终端上报的第一信道质量估算第三信噪比SINR_Old，其中，第一信道质量包括基于传输分集TxD的CQI，在估算中会用到基站侧信息包括波束赋形矩阵和/或信道等。然后会获取终端在之前预设时间内上报的所有信道质量补偿值，对这些信道质量补偿值进行平滑处理得到优化的信道质量补偿值。此时，优化的信道质量补偿值是调制编码方式的形式Ave_MCS_OFFSET，就需要先将SINR_Old映射为调制编码方式，即通过预设的调制编码方式-信噪比转换表，确定与SINR_Old对应的第三调制编码方式MCS_Old，然后根据该Ave_MCS_OFFSET对MCS_Old进行调整得到调整后的第四调制编码方式MCS_New，如MCS_New＝MCS_Old+ Ave_MCS_OFFSET，之后将该MCS_New的调制编码方式分配给终端，在新的传输中，使用新的调制编码方式提高数据传输质量。
在步骤211d中，同样的，基站会根据终端上报的第一信道质量估算第三信噪比SINR_Old，其中，第一信道质量包括基于传输分集TxD的CQI，在估算中会用到基站侧信息包括波束赋形矩阵和/或信道等。同时，获取终端在之前预设时间内最新上报的信道质量补偿值。此时，信道质量补偿值是调制编码方式的形式MCS_OFFSET，就需要先将SINR_Old映射为调制编码方式，即通过预设的调制编码方式-信噪比转换表，确定与SINR_Old对应的第三调制编码方式MCS_Old，根据该MCS_OFFSET对MCS_Old进行调整得到调整后的第四调制编码方式MCS_New，如MCS_New＝MCS_Old+MCS_OFFSET，之后通过预设的调制编码方式-信噪比转换表，确定该MCS_New的调制编码方式，并分配给终端，在新的传输中，使用新的调制编码方式提高数据传输质量。
由于信道质量指示、信噪比以及调制编码方式之间存在相互对应的关系，上述步骤中信道质量补偿值可以是信道质量指示的形式，通过对应的转换，映射得到信噪比或调制编码方式再根据上述步骤的原理相同的其他方式进行相应处理，确定分配给终端的调制解调方式也应视为本公开的保护范围，在此不一一列举。
综上所述，如图2所示，终端执行S201，接收到第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及该数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值。第一信道质量包含了信道质量的相关参数，如信道质量指示、信噪比等。第二信道质量包含与第一信道质量相同的相关参数，获取到第一信道质量与第二信道质量的差值，再将该差值作为信道质量补偿值，S202，将信道质量补偿值上报给基站。这样，基站能够如S203，根据信道质量补偿值，确定终端使用的调制编码方式MCS并分配给终端。其中，信道质量补偿值可以通过信道质量指示、信噪比或调制解调方式实现。这样，通过信道质量补偿值实现了对下次传输的适当调整，确定更适合当前数据传输的调制编码方式，相较于现有进行固定调整的方案，具有更高的适用性，不仅适用连续性的Fullbuffer业务，而且也适用非连续性 的FTP业务，提高了吞吐量。
如图3所示，本公开的实施例还提供了一种确定终端调制编码方式MCS的方法，包括：
步骤31，获得终端上报的第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值；
步骤32，根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述信道质量补偿值是终端获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，获取所述第一信道质量和所述第二信道质量的差值，并将所述差值作为所述信道质量补偿值。
其中，终端获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，获取所述第一信道质量和所述第二信道质量的差值的步骤包括：
步骤411a，根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取所述第一信噪比和所述第二信噪比的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；或者
步骤411b，根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值作为所述第一信道质量与所述第二信道质量的差值；或者
步骤411c，根据自身的检测能力估算获得第一次传输是数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值的平均值作为所述第一信道质量与所述第二信道质量的差值；或者
步骤411d，根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一信噪比对应的第二调制编码方式，获取所述第二调制编码方式和所述第一调制编码方式的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
步骤411e，根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的信道质量指示-信噪比转换表，确定与所述第一信噪比对应的第一调信道质量指示，通过预设的信道质量指示-调制编码方式转换表，确定与所述第一调制编码方式对应的第二信道质量指示，获取所述第一调信道质量指示和所述第二信道质量指示的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值。
其中，步骤32包括：
步骤32’，基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
其中，步骤32’，包括：
步骤32’1a，根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为信噪比时，根据所述信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
步骤32’1b，根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为信噪比时，根据所述优化的信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
步骤32’1c，根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为调制编码方 式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述优化的信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式；或者
步骤32’1d，根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式。
综上所述，本公开的实施例的确定终端调制编码方式MCS的方法，基站获得终端上报的第一次传输的数据块的第一信道质量以及该数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值后，根据信道质量补偿值，确定终端使用的调制编码方式MCS。通过信道质量补偿值实现了对下次传输的适当调整，确定更适合当前数据传输的调制编码方式，相较于现有进行固定调整的方案，具有更高的适用性，不仅适用连续性的Fullbuffer业务，而且也适用非连续性的FTP业务，提高了吞吐量。
需要说明的是，该方法是配合上述确定终端调制编码方式MCS的方法达到预期效果的方法，上述确定终端调制编码方式MCS的方法的实现方式适用于该方法，也能达到相同的技术效果。
如图4所示，本公开的实施例还提供了一种终端，包括：
处理模块10，用于终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；
上报模块20，用于将所述信道质量补偿值上报给基站，以使基站根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述处理模块包括：
处理子模块，用于获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值；
第一子模块，用于将所述差值作为所述信道质量补偿值。
其中，所述处理子模块包括：
第一处理单元，用于根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取所述第一信噪比和所述第二信噪比的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
第二处理单元，用于根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值作为所述第一信道质量与所述第二信道质量的差值；
第三处理单元，用于根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值的平均值作为所述第一信道质量与所述第二信道质量的差值；
第四处理单元，用于根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一信噪比对应的第二调制编码方式，获取所述第二调制编码方式和所述第一调制编码方式的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
第五处理单元，用于根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的信道质量指示-信噪比转换表，确定与所述第一信噪比对应的第一调信道质量指示，通过预设的信道质量指示-调制编码方式转换表，确定与所述第一调制编码方式对应的第二信道质量指示，获取所述第一调信道质量指示和所述第二信道质量指示的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值。
其中，基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
其中，所述根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式的步骤包括：
根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为信噪比时，根据所述信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为信噪比时，根据所述优化的信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述优化的信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式；或者
根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式。
综上所述，本公开实施例的终端接收到第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量。第一信道质量包含了信道质量的相关参数，如信道质量指示、信噪比等。同时获得该数据块的调制编码方式对应 的第二信道质量，第二信道质量包含与第一信道质量相同的相关参数，获取到第一信道质量与第二信道质量的差值，再将该差值作为信道质量补偿值上报给基站，就可使基站根据该信道质量补偿值，确定终端使用的调制编码方式MCS。其中，信道质量补偿值可以通过信道质量指示、信噪比或调制解调方式实现。这样，终端上报信道质量补偿值，通过该信道质量补偿值实现了对下次传输的适当调整，确定更适合当前数据传输的调制编码方式，相较于现有进行固定调整的方案，具有更高的适用性，不仅适用连续性的Fullbuffer业务，而且也适用非连续性的FTP业务，提高了吞吐量。
需要说明的是，该终端是应用了上述确定终端调制编码方式MCS的方法的终端，上述确定终端调制编码方式MCS的方法的实现方式适用于该终端，也能达到相同的技术效果。
如图5所示，本公开的实施例还提供了一种基站，包括：
获得模块30，用于获得终端上报的第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值；
确定模块40，用于根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
其中，所述信道质量补偿值是终端获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，获取所述第一信道质量和所述第二信道质量的差值，并将所述差值作为所述信道质量补偿值。
其中，所述终端获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，获取所述第一信道质量和所述第二信道质量的差值的步骤包括：
根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取所述第一信噪比和所述第二信噪比的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；或者
根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪 比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值作为所述第一信道质量与所述第二信道质量的差值；或者
根据自身的检测能力估算获得第一次传输时数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值的平均值作为所述第一信道质量与所述第二信道质量的差值；或者
根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一信噪比对应的第二调制编码方式，获取所述第二调制编码方式和所述第一调制编码方式的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的信道质量指示-信噪比转换表，确定与所述第一信噪比对应的第一调信道质量指示，通过预设的信道质量指示-调制编码方式转换表，确定与所述第一调制编码方式对应的第二信道质量指示，获取所述第一调信道质量指示和所述第二信道质量指示的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值。
其中，所述确定模块具体用于基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
其中，所述确定模块包括：
第一确定子模块，用于根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为信噪比时，根据所述信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；
第二确定子模块，用于根据终端上报的第一信道质量估算第三信噪比， 获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为信噪比时，根据所述优化的信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；
第三确定子模块，用于根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述优化的信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式；
第四确定子模块，用于根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式。
综上所述，本公开的实施例的基站获得终端上报的第一次传输的数据块的第一信道质量以及该数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值后，根据信道质量补偿值，确定终端使用的调制编码方式MCS。通过信道质量补偿值实现了对下次传输的适当调整，确定更适合当前数据传输的调制编码方式，相较于现有进行固定调整的方案，具有更高的适用性，不仅适用连续性的Fullbuffer业务，而且也适用非连续性的FTP业务，提高了吞吐量。
需要说明的是，该基站是应用了上述确定终端调制编码方式MCS的方法的基站，上述确定终端调制编码方式MCS的方法的实现方式适用于该基站，也能达到相同的技术效果。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置/设备和方法，可以通过其它的方式实现。以上所描述的装置/设备实施例仅仅是示意性的，例如，所述模块、单元的划分，仅仅为一种逻辑功能划分，实际实现时 可以有另外的划分方式，如：多个模块、单元或组件可以结合，或可以集成到另一个***，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，装置或模块的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的模块、单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元；既可以位于一个地方，也可以分布到多个网络模块上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本公开各实施例中的各功能模块/单元可以全部集成在一个处理模块/单元中，也可以是各模块/单元分别单独作为一个模块/单元，也可以两个或两个以上模块/单元集成在一个模块/单元中；上述集成的模块/单元既可以采用硬件的形式实现，也可以采用硬件加软件功能模块的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本公开上述集成的模块/单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本公开各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (10)

  1. 一种确定终端调制编码方式MCS的方法，包括：
    终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；
    将所述信道质量补偿值上报给基站，以使基站根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
  2. 根据权利要求1所述的确定终端调制编码方式MCS的方法，其中，所述终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值的步骤包括：
    获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值；
    将所述差值作为所述信道质量补偿值。
  3. 根据权利要求1所述的确定终端调制编码方式MCS的方法，其中，所述获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值的步骤包括：
    根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取所述第一信噪比和所述第二信噪比的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；或者
    根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差 值作为所述第一信道质量与所述第二信道质量的差值；或者
    根据自身的检测能力估算获得第一次传输的数据块的多个层的第一信噪比以及所述数据块的多个层使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一调制编码方式对应的第二信噪比，获取一一对应的所述第一信噪比和所述第二信噪比的多个差值，将所述多个差值的平均值作为所述第一信道质量与所述第二信道质量的差值；或者
    根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的调制编码方式-信噪比转换表，确定与所述第一信噪比对应的第二调制编码方式，获取所述第二调制编码方式和所述第一调制编码方式的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值；
    根据自身的检测能力估算获得第一次传输的数据块的第一信噪比以及所述数据块使用的第一调制编码方式，并通过预设的信道质量指示-信噪比转换表，确定与所述第一信噪比对应的第一调信道质量指示，通过预设的信道质量指示-调制编码方式转换表，确定与所述第一调制编码方式对应的第二信道质量指示，获取所述第一调信道质量指示和所述第二信道质量指示的差值，将所述差值作为所述第一信道质量与所述第二信道质量的差值。
  4. 一种确定终端调制编码方式MCS的方法，包括：
    获得终端上报的第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值；
    根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
  5. 根据权利要求4所述的确定终端调制编码方式MCS的方法，其中，所述根据所述信道质量补偿值，确定终端使用的调制编码方式MCS的步骤包括：
    基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
  6. 根据权利要求5所述的确定终端调制编码方式MCS的方法，其中，所述根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式的步骤包括：
    根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为信噪比时，根据所述信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
    根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为信噪比时，根据所述优化的信道质量补偿值对所述第三信噪比进行调整得到第四信噪比，通过预设的调制编码方式-信噪比转换表，确定与所述第四信噪比对应的调制编码方式；或者
    根据终端上报的第一信道质量估算第三信噪比，获取预设时间段内的终端上报的信道质量补偿值，对所述信道质量补偿值进行平滑处理得到优化的信道质量补偿值，在所述优化的信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述优化的信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式；或者
    根据终端上报的第一信道质量估算第三信噪比，获取终端在之前预设时间内最新上报的信道质量补偿值，在所述信道质量补偿值为调制编码方式时，通过预设的调制编码方式-信噪比转换表，确定与所述第三信噪比对应的第三调制编码方式，根据所述信道质量补偿值对所述第三调制编码方式进行调整得到第四调制编码方式。
  7. 一种终端，包括：
    处理模块，用于终端估算接收到第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式MCS对应的第二信道质量，并计算出所述第一信道质量和所述第二信道质量之间的信道质量补偿值；
    上报模块，用于将所述信道质量补偿值上报给基站，以使基站根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
  8. 根据权利要求7所述的终端，其中，所述处理模块包括：
    处理子模块，用于获得第一次传输的数据块时，根据自身的检测能力估算得到第一信道质量以及所述数据块的调制编码方式对应的第二信道质量，并获取所述第一信道质量和所述第二信道质量的差值；
    第一子模块，用于将所述差值作为所述信道质量补偿值。
  9. 一种基站，包括：
    获得模块，用于获得终端上报的第一次传输的数据块的第一信道质量以及所述数据块的调制编码方式对应的第二信道质量之间的信道质量补偿值；
    确定模块，用于根据所述信道质量补偿值，确定终端使用的调制编码方式MCS。
  10. 根据权利要求9所述的基站，其中，所述确定模块具体用于基站在为终端分配调制编码方式时，根据终端之前一段时间上报的信道质量补偿值确定终端使用的调制编码方式。
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