WO2016066031A1 - Procédé de détermination de schéma de modulation et de codage pour un terminal, terminal et station de base - Google Patents

Procédé de détermination de schéma de modulation et de codage pour un terminal, terminal et station de base Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
channel quality
modulation
coding mode
noise ratio
signal
Prior art date
Application number
PCT/CN2015/092427
Other languages
English (en)
Chinese (zh)
Inventor
王飞
童辉
王启星
侯雪颖
金婧
Original Assignee
中国移动通信集团公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国移动通信集团公司 filed Critical 中国移动通信集团公司
Publication of WO2016066031A1 publication Critical patent/WO2016066031A1/fr

Links

Images

Classifications

    • 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.

Landscapes

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

Abstract

La présente invention concerne un procédé permettant de déterminer un schéma de modulation et de codage (MCS) pour un terminal, un terminal et une station de base. Le procédé comprend les étapes suivantes : un terminal estime une première qualité de canal d'un bloc de données reçu transmis pour la première fois et une deuxième qualité de canal correspondant à un MCS du bloc de données, et calcule une valeur de compensation de qualité de canal entre la première qualité de canal et la deuxième qualité de canal ; et communique la valeur de compensation de qualité de canal à une station de base, de sorte que la station de base détermine, selon la valeur de compensation de qualité de canal, un MCS utilisé par le terminal.
PCT/CN2015/092427 2014-10-29 2015-10-21 Procédé de détermination de schéma de modulation et de codage pour un terminal, terminal et station de base WO2016066031A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410593893.5A CN105634656A (zh) 2014-10-29 2014-10-29 一种确定终端调制编码方式 mcs 的方法、终端和基站
CN201410593893.5 2014-10-29

Publications (1)

Publication Number Publication Date
WO2016066031A1 true WO2016066031A1 (fr) 2016-05-06

Family

ID=55856588

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/092427 WO2016066031A1 (fr) 2014-10-29 2015-10-21 Procédé de détermination de schéma de modulation et de codage pour un terminal, terminal et station de base

Country Status (2)

Country Link
CN (1) CN105634656A (fr)
WO (1) WO2016066031A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347266B (zh) * 2017-01-24 2020-12-25 瑞昱半导体股份有限公司 基于信道容量决定调制编码方式的接收装置及接收方法
CN108234076A (zh) * 2017-12-26 2018-06-29 广东欧珀移动通信有限公司 参数调整方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754347A (zh) * 2008-12-19 2010-06-23 大唐移动通信设备有限公司 多流波束赋形传输时cqi估计方法、系统及设备
CN102546099A (zh) * 2011-12-21 2012-07-04 华为技术有限公司 数据传输方法及装置
GB2500254A (en) * 2012-03-16 2013-09-18 Renesas Mobile Corp Channel Quality Information (CQI) reporting

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1976535A (zh) * 2006-12-12 2007-06-06 华为技术有限公司 信道自适应装置与信道自适应方法
JP5141771B2 (ja) * 2008-10-24 2013-02-13 富士通株式会社 適応ハイブリッド自動再送要求方式による送信装置、受信装置、通信システム、及び通信方法
CN101635608B (zh) * 2009-09-02 2014-07-09 北京邮电大学 一种mcs选择方法、装置和无线通信系统
US20120276896A1 (en) * 2009-09-15 2012-11-01 Rockstar Bidco, LP Adaptive modulation and coding scheme adjustment in wireless networks
CN102299773B (zh) * 2011-09-21 2013-10-16 慈溪市供电局 一种tdma系统调制编码自适应方法与移动终端
CN103475450B (zh) * 2013-08-29 2016-11-23 上海华为技术有限公司 一种下行自适应调制编码的方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754347A (zh) * 2008-12-19 2010-06-23 大唐移动通信设备有限公司 多流波束赋形传输时cqi估计方法、系统及设备
CN102546099A (zh) * 2011-12-21 2012-07-04 华为技术有限公司 数据传输方法及装置
GB2500254A (en) * 2012-03-16 2013-09-18 Renesas Mobile Corp Channel Quality Information (CQI) reporting

Also Published As

Publication number Publication date
CN105634656A (zh) 2016-06-01

Similar Documents

Publication Publication Date Title
CN102687551B (zh) 用于无线通信的可扩展信道反馈
KR101578133B1 (ko) 하향 링크 송신을 위한 셀간 간섭 회피
JP5512819B2 (ja) Ｍｉｍｏ送信に対するチャネル状態情報のスケーラブルな量子化のための方法および装置
US8593989B2 (en) Method and device for determining CQI value in coordinated multi-point transmission/reception
US20170070334A1 (en) Methods and Arrangements for CSI Reporting
US9179332B2 (en) Artificial interference injection for channel state information reporting
US20120188888A1 (en) Method and device for controlling the downlink transmission in the coordinated multi-point transmission system
US9258039B2 (en) Devices for sending and receiving quantization quality feedback
WO2016161936A1 (fr) Procédé de rétroaction d'informations d'état de canal, appareil, terminal, et station de base
JP6604378B2 (ja) 適応変調コーディングの方法および装置
KR102405408B1 (ko) 전차원 다중 입출력 시스템에서 채널 상태 정보를 송수신하는 방법 및 장치
JP5667697B2 (ja) 変調および符号化方式の選択方法並びに装置
KR20090100777A (ko) 다중안테나 시스템에서 간섭제거를 위한 장치 및 방법
US10340986B2 (en) Frequency resource allocation in MU-MIMO systems
WO2013139036A1 (fr) Procédé et appareil pour la programmation d'un équipement d'utilisateur
CN102035619B (zh) 信道质量信息反馈的方法、系统和设备
US20240007164A1 (en) Methods for reducing overhead of nr type ii channel state information feedback using angle and delay reciprocity
WO2022009151A1 (fr) Csi-rs partagé pour retour de csi basé sur une réciprocité partielle
WO2016066031A1 (fr) Procédé de détermination de schéma de modulation et de codage pour un terminal, terminal et station de base
EP2523360A1 (fr) Procédé pour la réduction de l'interférence dans un système de communication radio, premier nýud de réseau d'accès radio, deuxième nýud de réseau d'accès radio et station mobile correspondante
US9203589B1 (en) Estimation of channel state information (CSI) feedback using interpolation
CN111741474B (zh) 一种信道状态信息的测量方法、装置及网络侧设备
KR20140114759A (ko) 무선 통신 시스템에서 간섭 제어를 위한 장치 및 방법
US11870516B2 (en) Apparatus and methods for better estimation of radiation power utilizing PAPC compensation
KR20110137232A (ko) 이동통신 시스템 및 그에 대한 상향 링크 전력제어 방법 및 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15855305

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15855305

Country of ref document: EP

Kind code of ref document: A1