WO2017050077A1 - Procédé de sélection de sous-ensemble de ressources pilotes de mesure d'informations de canal, terminal et station de base - Google Patents

Procédé de sélection de sous-ensemble de ressources pilotes de mesure d'informations de canal, terminal et station de base Download PDF

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Publication number
WO2017050077A1
WO2017050077A1 PCT/CN2016/096238 CN2016096238W WO2017050077A1 WO 2017050077 A1 WO2017050077 A1 WO 2017050077A1 CN 2016096238 W CN2016096238 W CN 2016096238W WO 2017050077 A1 WO2017050077 A1 WO 2017050077A1
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WIPO (PCT)
Prior art keywords
feedback
csi
base station
signaling
subset
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PCT/CN2016/096238
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English (en)
Chinese (zh)
Inventor
陈艺戬
李儒岳
肖华华
鲁照华
蔡剑兴
李永
吴昊
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中兴通讯股份有限公司
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Publication of WO2017050077A1 publication Critical patent/WO2017050077A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]

Definitions

  • This document relates to, but is not limited to, the field of mobile communications, and in particular, to a method, a terminal and a base station for selecting a subset of channel information measurement pilot resources.
  • the data transmission performance of a multi-antenna system depends mainly on the measurement and feedback of channel information. Therefore, the measurement and feedback of channel information is the core content of multi-antenna technology; how to ensure the accuracy, cost and robustness of channel measurement and channel information feedback has become an important issue.
  • LTE Long Term Evolution
  • Rel-8 the terminal usually used Common Reference Signal (CRS) for channel estimation and measurement.
  • CRS Common Reference Signal
  • the signal RS is a non-precoded RS, and the RS is generally transmitted by using a base station antenna and an antenna port to be mapped one by one.
  • a new RS is introduced in order to enable the terminal to estimate and feed back a larger bandwidth of Channel State Information (CSI) for a large number of antenna ports.
  • the newly introduced CSI-RS is a reference signal transmitted by the base station and used for channel measurement.
  • the terminal performs channel based on the pilot symbols transmitted by the base station. It is estimated that the information of the channel matrix H of different transceiver antennas at different time-frequency resource locations is obtained, and then CSI quantization and feedback can be performed based on the channel matrix H.
  • CQI channel quality indication
  • PMI Precoding Matrix Indicator
  • RI Rank Indicator
  • CQI is an indicator to measure the quality of downlink channels.
  • CQI is represented by an integer value of 0 to 15, which respectively represent different CQI levels, and different CQIs correspond to respective modulation modes and coding rate (MCS).
  • MCS modulation modes and coding rate
  • the RI is used to describe the number of spatially independent channels, corresponding to the rank of the channel response matrix.
  • the UE needs to feed back RI information, and other modes do not need to feed back RI information.
  • the rank of the channel matrix corresponds to the number of layers.
  • PMI feedback is the best precoding information, based on the index Feedback indicating the codeword of the agreed codebook that best matches the characteristics of the current channel.
  • CSI quantization and feedback can be performed based on the channel matrix H.
  • the payload of each feedback type (Report Type) of the PUCCH is small, it is close to saturation, and is configured in the CSI process.
  • the number of CSI-RS pilots is large.
  • the increase of the beam index Beam Index selection information will have a significant impact on the uplink performance of various different types of report types.
  • the CSI feedback accuracy is guaranteed, it cannot be guaranteed.
  • the low error rate requirement corresponding to the report type (Report Type) ultimately leads to sufficient CSI accuracy but the base station often fails to decode correctly. Therefore, a better method is needed to compromise the CSI accuracy and the error rate performance of the Report Type.
  • the method for selecting a subset of channel information measurement pilot resources, the terminal, and the base station can achieve a compromise between CSI accuracy and feedback type error rate performance, so that the CSI accuracy and the feedback type error rate performance are balanced. .
  • a method for selecting a subset of channel information measurement pilot resources comprising:
  • the terminal measures the resource subset selection signaling and/or the rank indicator according to the feedback mode of the channel information feedback on the physical uplink control channel and/or the feedback type of the channel information on the physical uplink control channel and/or the channel state information reference signal CSI-RS.
  • the value of the RI is determined by the base station to determine a CSI-RS resource subset in the CSI-RS for the CSI process configuration;
  • the terminal performs measurement and channel information quantization based on the CSI-RS resource subset and performs feedback on the physical uplink control channel by using the feedback type included in the feedback mode.
  • the subset of CSI-RS resources is a Yc set in an Xc set CSI-RS configuration; and/or,
  • the CSI-RS resource subset is Yr resource sets in Xr CSI-RS resource set configurations; and/or,
  • the CSI-RS resource subset is Yp CSI-RS port groups in Xp CSI-RS port groups;
  • Xc, Yc, Xr, Yr, Xp and Yp are all positive integers.
  • the terminal determines the value of the Yc and/or the value of Yr and/or the value of Yp according to the feedback mode and/or the feedback type.
  • the terminal determines an index of a Yc-set CSI-RS configuration according to the feedback mode and/or a feedback type, and/or a Set index included in a Yr CSI-RS resource group Resource Set, and/or Yr CSI- Group index included in the RS port group port group.
  • the measurement resource subset selection signaling is bitmap bitmap signaling, and each bit indicates selection information of one or more configurations and/or resource groups and/or port groups.
  • the base station separately configures CSI-RS measurement resource subset selection signaling for different feedback modes and/or feedback types.
  • the method further includes: the terminal determining a subset selection method of the pilot resources according to the feedback category configuration signaling.
  • the method further includes: determining, by the terminal, a subset selection method of the pilot resource according to whether the PMI feedback enables configuration signaling.
  • the method further includes: determining, by the terminal, a subset selection method of pilot resources according to a dimension of feedback of the PMI.
  • a method for configuring a subset of channel information measurement pilot resources including:
  • the base station sends pilot resource subset selection signaling to the terminal for periodic CSI feedback, where the pilot resource subset selection signaling is used by the terminal to determine a pilot resource subset when CSI measurement and feedback.
  • the method further includes determining, by the base station, the subset size of the pilot resource subset selection signaling allowed configuration according to the feedback mode.
  • the method further includes determining, by the base station, the subset size of the pilot resource subset selection signaling allowed configuration according to the feedback type.
  • the method further includes: determining, by the base station, the pilot resource subset selection signaling permission according to a feedback category The configured subset size.
  • the method further includes the base station determining, according to the precoding matrix indicator PMI feedback enabled configuration signaling, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the method further includes determining, by the base station, the subset size of the pilot resource subset selection signaling allowed configuration according to a dimension of the feedback of the PMI.
  • the method further includes determining, by the base station, a subset size of the pilot resource subset selection signaling allowed configuration according to the RI value.
  • the method further includes: configuring, by the base station, pilot resource subset selection signaling for periodic CSI feedback for the P process processes, where P is an integer greater than 1.
  • the method further includes: configuring, by the base station, a pilot resource subset selection signaling when a periodic CSI feedback is configured for the P set of CSI-RSs, where P is an integer greater than 1.
  • the base station further includes a pilot resource subset selection signaling when periodic CSI feedback is configured for the feedback classes Class A and Class B, respectively.
  • the method further includes: the base station configuring, for the R RI values, a pilot resource subset selection signaling when the periodic CSI feedback is respectively configured, where R is an integer greater than 1.
  • the method further includes: configuring, by the base station, pilot resource subset selection signaling when periodic CSI feedback is respectively configured for PMI enable and disable.
  • the method further includes: configuring, by the base station, pilot resource subset selection signaling when periodic CSI feedback is respectively configured for RI enable and disable.
  • the method further includes: configuring, by the base station, a pilot resource subset selection signaling during periodic CSI feedback for the feedback of the Q PMIs, where Q is an integer greater than 1.
  • a terminal comprising:
  • the first determining module is configured to: according to a feedback mode of channel information feedback on the physical uplink control channel and/or a feedback type of channel information on the physical uplink control channel and/or a channel state information reference signal CSI-RS measurement resource subset selection signaling And/or the value of the rank indicator RI, the base station determines a CSI-RS resource subset in the CSI-RS configuration for the CSI process;
  • a processing module configured to perform measurement and channel information based on the subset of CSI-RS resources Chemical
  • the feedback module is configured to perform feedback on the physical uplink control channel by using the feedback type included in the feedback mode.
  • the CSI-RS resource subset is a Yc set in an Xc set CSI-RS configuration
  • the CSI-RS resource subset is Yr resource sets in Xr CSI-RS resource set configurations; and/or,
  • the CSI-RS resource subset is Yp CSI-RS port groups in Xp CSI-RS port groups;
  • Xc, Yc, Xr, Yr, Xp and Yp are all positive integers.
  • the first determining module is configured to determine a value of the Yc and/or a value of Yr and/or a value of Yp according to the feedback mode and/or the feedback type.
  • the first determining module is configured to determine an index of a Yc-set CSI-RS configuration according to the feedback mode and/or a feedback type, and/or a Set index included in a Yr CSI-RS resource group Resource Set, and / or Yr group index included in the CSI-RS port group port group.
  • the measurement resource subset selection signaling is bitmap bitmap signaling, and each bit indicates selection information of one or more configurations and/or resource groups and/or port groups.
  • the base station separately configures CSI-RS measurement resource subset selection signaling for different feedback modes and/or feedback types.
  • the first determining module is further configured to determine a subset selection method of the pilot resources according to the feedback category configuration signaling.
  • the first determining module is further configured to determine a subset selection method of the pilot resources according to whether the PMI feedback enables configuration signaling.
  • the first determining module is further configured to determine a subset selection method of the pilot resources according to the dimension of the feedback of the PMI.
  • a base station comprising:
  • a sending module configured to send pilot resource subset selection signaling to the terminal for periodic CSI feedback, where the pilot resource subset selection signaling is used by the terminal to determine CSI measurement and feedback A subset of pilot resources.
  • the base station further includes:
  • a second determining module configured to determine, according to the feedback mode, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, by the base station, the subset size of the pilot resource subset selection signaling allowed configuration according to the feedback type.
  • the base station further includes:
  • a second determining module configured to determine, according to the feedback category, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, according to the precoding matrix indicator PMI feedback enabled configuration signaling, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, according to a dimension of the feedback of the PMI, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • the second determining module is configured to determine, according to the RI value, the subset size of the pilot resource subset selection signaling allowed to be configured according to the RI value.
  • the base station further includes:
  • the configuration module is configured to separately configure pilot resource subset selection signaling when the periodic CSI feedback is configured for the P process processes, where P is an integer greater than 1.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when the periodic CSI feedback is configured for the P-set CSI-RS, where P is an integer greater than 1.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when periodic CSI feedback is configured for the feedback classes Class A and Class B, respectively.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when the periodic CSI feedback is respectively configured for the R RI values, where R is an integer greater than 1.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when periodic CSI feedback is respectively configured for PMI enable and disable.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when periodic CSI feedback is configured for the RI enabled and disabled states, respectively.
  • the base station further includes:
  • the configuration module is configured to separately configure pilot resource subset selection signaling when the periodic CSI feedback is used for the feedback of the Q PMIs, where Q is an integer greater than 1.
  • a method for determining a subset of channel information measurement pilot resources comprising:
  • the terminal selects a subset of resources from the channel information measured by the base station, and the terminal feeds back the resource subset by using the first type of physical uplink control signaling;
  • the terminal notifies the base station that the CSI feedback in the agreed time range is measured by the resource subset of the feedback channel information measurement pilot by using the second type of physical uplink control channel signaling.
  • the agreed time range size is a feedback period of the feedback type in which the feedback signaling is located.
  • the notification signaling and the rank feedback information of the channel are fed back in the same feedback type.
  • the notification signaling and the selection of the subset of resources indicate that the signaling is fed back in the same feedback type.
  • a terminal comprising:
  • a processing module configured to: select a subset of resources from the channel information measurement pilot resources configured by the base station; feed back the resource subset by using the first type of physical uplink control signaling; and pass the second type of physical uplink
  • the control channel signaling informs the base station that the CSI feedback within the agreed time range is measured using the resource subset of the feedback channel information measurement pilot.
  • the agreed time range size is a feedback period of the feedback type in which the feedback signaling is located.
  • the notification signaling and the rank feedback information of the channel are fed back in the same feedback type.
  • the notification signaling and the selection of the subset of resources indicate that the signaling is fed back in the same feedback type.
  • the embodiment provided by the present invention according to the feedback mode of the channel information feedback on the physical uplink control channel and/or the feedback type of the channel information on the physical uplink control channel and/or the channel state information reference signal CSI-RS measurement resource subset selection signaling And/or the value of the rank indicator RI, determining, by the base station, a CSI-RS resource subset in the CSI-RS configuration CSI-RS, performing measurement and channel information quantization based on the CSI-RS resource subset, and passing the feedback
  • the feedback type included in the mode is fed back on the physical uplink control channel, and the error rate performance of the CSI precision and the feedback type is compromised, so that the CSI precision and the feedback type bit error rate performance are balanced.
  • FIG. 1 is a flowchart of a method for selecting a subset of channel information measurement pilot resources according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a method for a terminal to select a CSI-RS resource subset according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a correspondence between a process and a feedback mode according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a method for configuring a subset of channel information measurement pilot resources according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a corresponding relationship between a measurement pilot subset and a periodic CSI feedback mode according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a correspondence between a feedback type configuration and a measurement pilot resource selection subset according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a correspondence between a RI and a selected subset of measurement pilot resources according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a correspondence between a feedback category and a selected subset of measurement pilot resources according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a correspondence between a CSI Process and a measurement pilot subset according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of whether a PMI is enabled to determine a measurement pilot subset selection signaling according to an embodiment of the present invention
  • FIG. 11 is a schematic diagram of determining signaling of a subset of measurement pilots according to whether a PMI is enabled according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram of whether an RI enables determining a measurement pilot subset selection signaling according to an embodiment of the present invention
  • FIG. 13 is a schematic diagram of determining signaling of a subset of measurement pilots according to whether RI is enabled according to an RI according to an embodiment of the present invention
  • FIG. 14 is a schematic diagram of a correspondence between a feedback dimension size and a selected subset of measurement pilot resources according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of a base station transmitting a pilot resource subset selection signaling to a terminal according to an embodiment of the present disclosure
  • FIG. 16 is a schematic diagram of a correspondence between a periodic CSI feedback mode and a subset of a configurable pilot resource according to an embodiment of the present disclosure
  • FIG. 17 is a schematic diagram of a correspondence between a feedback category and a subset of a configurable pilot resource according to an embodiment of the present invention.
  • FIG. 18 is a schematic diagram of a correspondence between PMI feedback enable and a subset of configurable pilot resources according to an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of correspondence between RI feedback enable and the size of a subset of configurable pilot resources according to an embodiment of the present disclosure
  • FIG. 20 is a schematic diagram of a feedback of a PMI and a subset of the available pilot resources according to an embodiment of the present invention. a schematic diagram of a small correspondence;
  • FIG. 21 is a schematic diagram of a correspondence between a value of a RI and a subset of a configurable pilot resource according to an embodiment of the present invention.
  • FIG. 22 is a schematic diagram of a pilot resource subset selection signaling when a base station configures periodic CSI feedback for N processes according to an embodiment of the present disclosure
  • FIG. 23 is a schematic diagram of a pilot resource subset selection signaling when a base station configures periodic CSI feedback for a non-Europe feedback class according to an embodiment of the present disclosure
  • FIG. 24 is a schematic diagram of a pilot resource subset selection signaling when a base station configures periodic CSI feedback for N RI values according to an embodiment of the present disclosure
  • FIG. 25 is a schematic diagram of pilot resource subset selection signaling when a base station is configured with a CSI feedback for a PMI enabled and disabled state according to an embodiment of the present disclosure
  • FIG. 26 is a schematic diagram of pilot resource subset selection signaling when a base station is configured with periodic CSI feedback for an RI enabled and disabled state according to an embodiment of the present disclosure
  • FIG. 27 is a schematic diagram of a pilot resource subset selection signaling when a base station performs periodic CSI feedback for each of the five PMI feedback dimensions according to an embodiment of the present disclosure
  • FIG. 28 is a schematic diagram of a pilot resource subset selection signaling when a base station configures periodic CSI feedback for N feedback modes according to an embodiment of the present disclosure
  • FIG. 29 is a schematic diagram of a pilot resource subset selection signaling when a base station configures periodic CSI feedback for N feedback types according to an embodiment of the present disclosure
  • FIG. 30 is a schematic diagram of a channel measurement performed by a terminal using a feedback resource subset according to an embodiment of the present disclosure
  • FIG. 31 is another schematic diagram of a channel measurement performed by a terminal using a feedback resource subset according to an embodiment of the present disclosure
  • FIG. 32 is a structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 33 is a schematic diagram of a method for determining a subset of channel information measurement pilot resources according to an embodiment of the present disclosure
  • FIG. 34 is a structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 35 is a structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for selecting a subset of channel information measurement pilot resources according to an embodiment of the present invention. The method shown in Figure 1 includes:
  • Step 101 The terminal measures the resource subset selection signaling and/or according to the feedback mode of the channel information feedback on the physical uplink control channel and/or the feedback type of the channel information on the physical uplink control channel and/or the channel state information reference signal CSI-RS.
  • the value of the rank indicator RI is determined by the base station to determine a CSI-RS resource subset in the CSI-RS configuration for the CSI process;
  • Step 102 The terminal performs measurement and channel information quantization based on the CSI-RS resource subset, and performs feedback on the physical uplink control channel by using the feedback type included in the feedback mode.
  • the embodiment provided by the present invention according to the feedback mode of the channel information feedback on the physical uplink control channel and/or the feedback type of the channel information on the physical uplink control channel and/or the channel state information reference signal CSI-RS measurement resource subset selection signaling And/or the value of the rank indicator RI, determining, by the base station, a CSI-RS resource subset in the CSI-RS configuration CSI-RS, performing measurement and channel information quantization based on the CSI-RS resource subset, and passing the feedback
  • the feedback type included in the mode is fed back on the physical uplink control channel, and the error rate performance of the CSI precision and the feedback type is compromised, so that the CSI precision and the feedback type bit error rate performance are balanced.
  • FIG. 2 is a schematic diagram of a method for a terminal to select a CSI-RS resource subset according to an embodiment of the present invention. described as follows:
  • the CSI-RS resource subset may be a Yc set in an Xc set CSI-RS configuration
  • the CSI-RS resource subset may be Yr resource sets in Xr CSI-RS Resource Set configurations, and/or the resource subset may be Yp in Xp CSI-RS port port groups CSI-RS port group;
  • the terminal determines, according to the feedback mode and/or the feedback type, a value of Yc and/or a value of Yr, and/or a value of Yp.
  • the terminal determines an index of the Yc-set CSI-RS configuration according to the feedback mode and/or the feedback type, and/or a Set index included in the Yr CSI-RS Resource Sets, and/or Yr CSI-RS ports.
  • the group index contained in the group port group is the group index contained in the group port group,
  • the measurement resource subset selection signaling is bitmap signaling, and each bit indicates selection information of one or more configurations and/or resource set and/or port group group;
  • the base station separately configures CSI-RS measurement resource subset selection signaling for different feedback modes and/or feedback types.
  • the terminal further determines a subset selection method of the pilot resources according to the feedback class (Class) configuration signaling;
  • the terminal further determines a subset selection method of the pilot resource according to whether the PMI feedback enables the configuration signaling;
  • the terminal further determines a subset selection method of the pilot resource according to the dimension of the feedback of the PMI;
  • the advantage of the above manner is that the CSI-RS measurement resource subset selection can be performed through pre-agreed or signaling configuration, and the selection can be adapted to different feedback modes, feedback types, and feedback categories to adapt to these feedback modes and feedback types, and feedback categories. Resource subset selection for features and application scenarios.
  • the embodiment of the present invention further provides a method for configuring a subset of channel information measurement pilot resources, as shown in FIG. 4, including:
  • the base station sends pilot resource subset selection signaling to the terminal for periodic CSI feedback; wherein the terminal determines the pilot resource subset when CSI measurement and feedback based on the pilot resource subset selection signaling.
  • the base station determines, according to the feedback mode, the subset size of the pilot resource subset selection signaling allowed to be configured;
  • the base station determines, according to a feedback type, a subset size of the pilot resource subset selection signaling allowed to be configured;
  • the base station determines, according to a feedback class, a subset size of the pilot resource subset selection signaling allowed configuration
  • the base station determines, according to the PMI feedback enabled configuration signaling, the subset size of the pilot resource subset selection signaling allowed to be configured;
  • the base station determines, according to a dimension of the feedback of the PMI, the subset size of the pilot resource subset selection signaling allowed to be configured;
  • the base station determines, according to the RI value, a subset size of the pilot resource subset selection signaling allowed to be configured;
  • the base station configures, for the P process processes, the pilot resource subset selection signaling when the periodic CSI feedback is respectively configured;
  • the base station configures pilot resource subset selection signaling for periodic CSI feedback for the P set of CSI-RSs
  • the base station configures pilot resource subset selection signaling when periodic CSI feedback is respectively configured for the feedback classes Class A and Class B;
  • the base station configures pilot resource subset selection signaling when periodic CSI feedback is configured for each of the R RI values
  • the base station configures pilot resource subset selection signaling when periodic CSI feedback is respectively configured for PMI enable and disable.
  • the base station configures pilot resource subset selection signaling when periodic CSI feedback is respectively configured for RI enable and disable.
  • the base station separately configures pilot resource subset selection signaling during periodic CSI feedback for the feedback dimensions of the Q PMIs.
  • a base station sends a pilot resource subset selection signaling to a terminal for periodic CSI feedback, where the terminal determines a pilot resource when CSI measurement and feedback based on the pilot resource subset selection signaling.
  • Set compromise CIT accuracy and feedback type of bit error rate performance, so that the CSI accuracy and feedback type of bit error rate performance is balanced.
  • Embodiment 1 The terminal determines the selection of the subset according to the feedback mode
  • the feedback mode includes multiple feedback modes. Different feedback modes define different feedback content and feedback accuracy.
  • the base station can configure the feedback mode for the terminal. Table 1 shows the CQI and PMI feedback types in the PUCCH feedback mode. details as follows:
  • the periodic CSI feedback Mode 1-1 can be further divided into sub-mode 1 and sub-mode 2;
  • the base station may configure a plurality of process processes for the terminal, and each process corresponds to a feedback mode.
  • FIG. 3 is a schematic diagram of a correspondence between a process and a feedback mode according to an embodiment of the present invention. As shown in Figure 3:
  • the CSI Process n medium cycle CSI feedback mode n, the aperiodic CSI feedback mode n.
  • the feedback mode can be selected in the optional feedback mode table according to the current transmission mode. For the specific correspondence, refer to Table 2:
  • the base station and the terminal appoint a subset of measurement pilot resources corresponding to different feedback modes, or the base station configures a corresponding subset of measurement pilot resources for each feedback mode; the size of the measurement pilot resource selection subset may be different, and the included
  • the CSI-RS measurement resources may be different, and the CSI-RS measurement resources may be different if the size is the same.
  • FIG. 5 is a measurement pilot subset and a periodic CSI feedback mode according to an embodiment of the present invention.
  • the correspondence between the measurement subset and the CSI-RS can be:
  • the terminal determines the selection of the subset according to a feedback mode corresponding to the Process or the CSI-RS;
  • Embodiment 2 The terminal determines the selection of the subset according to the feedback Type
  • -Type 1report supports CQI feedback for the UE selected sub-bands
  • Type 2b supports wideband CQI and PMI feedback
  • bit overhead is shown in the following table:
  • the base station and the terminal appoint a subset of measurement pilot resources corresponding to different feedback types, or the base station configures a corresponding subset of measurement pilot resources for each feedback type.
  • Figure 6 is a diagram of an embodiment of the present invention Schematic diagram of the correspondence between the feedback type configuration and the measurement pilot resource selection subset.
  • the terminal determines the selection of the subset according to the feedback Type that is currently reported;
  • the base station and the terminal appoint a subset of the measurement pilot resources corresponding to the values of the different RIs, or the base station configures a subset of the measurement pilot resources for each RI.
  • FIG. 7 Schematic diagram of the correspondence between the RI and the selected subset of measurement pilot resources.
  • the terminal determines the selection of the subset according to the current RI value to be reported, including size selection and index selection; for example, there are 16 sets of CSI-RSs, and the measurement pilot subsets are selected respectively.
  • the base station and the terminal appoint a subset of the measurement pilot resources corresponding to the different feedback class categories, or the base station configures a corresponding subset of the measurement pilot resources for each feedback class Class.
  • FIG. 8 A schematic diagram of the correspondence between the provided feedback categories and the selected subset of measurement pilot resources.
  • the terminal determines the selection of the subset according to the current Class category, including size selection and index selection.
  • Embodiment 5 The terminal determines the selection of the subset according to the configuration signaling
  • the base station may configure the measurement pilot subset selection signaling for the PUCCH feedback of each process Process.
  • FIG. 9 is a schematic diagram of the correspondence between the CSI Process and the measurement pilot subset provided by the embodiment of the present invention, where the terminal The size and content of the measurement pilot resource subset for each Process is determined based on the configuration signaling.
  • Embodiment 6 The terminal determines the selection of the subset according to the PMI enabling signaling
  • the base station and the terminal appoint a subset of measurement pilot resources corresponding to different PMI enabled states, or the base station selects a subset of measurement pilot resources corresponding to different PMI enabled states.
  • FIG. 10 is a schematic diagram of whether a PMI is enabled to determine a measurement pilot subset selection signaling according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of determining signaling subset selection signaling according to whether a PMI is enabled according to an embodiment of the present invention.
  • Embodiment 7 The terminal determines the selection of the subset according to the RI enable signaling
  • the base station and the terminal appoint a subset of measurement pilot resources corresponding to different RI enabled states, or the base station selects a subset of measurement pilot resources corresponding to different RI enabled states.
  • FIG. 12 is a schematic diagram of whether an RI enables determining a measurement pilot subset selection signaling according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of determining signaling pilot subset selection signaling according to whether RI is enabled for different CSI processes according to an embodiment of the present invention.
  • the base station and the terminal appoint a subset of measurement pilot resources corresponding to different feedback dimension sizes, or the base station configures a subset of measurement pilot resources corresponding to different feedback dimension sizes;
  • FIG. 14 is a feedback dimension size and A schematic diagram of measuring the correspondence of pilot resource selection subsets.
  • the terminal may determine the measurement pilot subset selection signaling according to the feedback dimension size; or jointly determine based on the pilot port number and the feedback dimension.
  • FIG. 15 is a schematic diagram of a base station transmitting pilot resource subset selection signaling to a terminal according to an embodiment of the present invention.
  • the base station sends pilot resource subset selection signaling for periodic CSI feedback to the terminal; and the terminal determines pilot resource subsets for CSI measurement and feedback according to the pilot resource subset selection signaling; The terminal performs CSI measurement and reports CSI according to the subset of pilot resources.
  • the optional base station may determine, according to the feedback mode, the subset size of the pilot resource subset selection signaling allowed configuration;
  • FIG. 16 is a correspondence between the periodic CSI feedback mode and the subset of the configurable pilot resource provided by the embodiment of the present invention. Schematic diagram of the relationship.
  • the optional base station may determine, according to a feedback type, a subset size of the pilot resource subset selection signaling allowed to be configured.
  • the optional base station may determine, according to a feedback class, a subset size of the pilot resource subset selection signaling allowed configuration;
  • FIG. 17 is a feedback class and a subset of the pilotable resource subsets provided by the embodiment of the present invention. A schematic diagram of the correspondence.
  • the optional base station may determine the subset size of the pilot resource subset selection signaling allowed to be configured according to the PMI feedback enabled configuration signaling.
  • FIG. 18 is a PMI feedback enable and a configurable pilot according to an embodiment of the present invention. Schematic diagram of the correspondence of resource subset sizes.
  • the optional base station may determine, according to the RI feedback-enabled configuration signaling, the subset size of the pilot resource subset selection signaling allowed configuration;
  • FIG. 19 is the RI feedback enable and the configurable pilot provided by the embodiment of the present invention. Schematic diagram of the correspondence of resource subset sizes.
  • the optional base station may determine the subset size of the pilot resource subset selection signaling allowed to be configured according to the dimension of the feedback of the PMI;
  • FIG. 20 is a feedback dimension and a configurable pilot resource of the PMI according to the embodiment of the present invention. A schematic diagram of the correspondence of set sizes.
  • the optional base station may determine the subset size of the pilot resource subset selection signaling allowed to be configured according to the RI value;
  • FIG. 21 is the correspondence between the RI value and the subset of the configurable pilot resource provided by the embodiment of the present invention. Schematic diagram of the relationship.
  • the base station configures pilot resource subset selection signaling for periodic CSI feedback for each of the N processes.
  • FIG. 22 is a schematic diagram of pilot resource subset selection when the base station configures periodic CSI feedback for each of the N processes according to the embodiment of the present invention. Schematic diagram of signaling.
  • the base station configures pilot resource subset selection signaling for periodic CSI feedback for the feedback classes Class A and Class B, respectively.
  • FIG. 23 is a pilot station configured to configure periodic CSI feedback for different feedback classes according to an embodiment of the present invention. Schematic diagram of resource subset selection signaling.
  • the base station configures pilot resource subset selection signaling for periodic CSI feedback for each of the N RI values;
  • FIG. 24 is a pilot station configured to configure periodic CSI feedback for each of the N RI values according to the embodiment of the present invention. Schematic diagram of resource subset selection signaling.
  • the base station configures pilot resource subset selection signaling for periodic CSI feedback in the case of PMI enable and disable, respectively.
  • FIG. 25 is a case where the base station is enabled and disabled by the PMI according to the embodiment of the present invention.
  • a schematic diagram of pilot resource subset selection signaling when periodic CSI feedback is separately configured.
  • the base station configures pilot resource subset selection signaling for periodic CSI feedback for RI enable and disable conditions respectively.
  • FIG. 26 is a case where the base station is enabled and disabled for the RI according to the embodiment of the present invention.
  • a schematic diagram of pilot resource subset selection signaling when periodic CSI feedback is separately configured.
  • the base station configures the pilot resource subset selection signaling for the periodic CSI feedback for the dimensions of the feedback of the five types of PMIs.
  • FIG. 27 is configured to configure the periodic CSI for the dimensions of the feedback of the five PMIs by the base station according to the embodiment of the present invention. Schematic diagram of pilot resource selection control signaling at the time of feedback.
  • the base station configures the pilot resource subset selection signaling for the periodic CSI feedback for the N feedback modes, and the base station provides the pilot resource for the CSI feedback for the N feedback modes.
  • the base station configures a pilot resource subset selection signaling for periodic CSI feedback for each of the N feedback types.
  • FIG. 29 is a flowchart, where the base station provides a periodic CSI feedback pilot resource for each of the N feedback types. Schematic diagram of set selection signaling.
  • the embodiments of the present invention may actually be used for non-precoded pilots, such as the total number of non-precoded pilot ports is 16, and some feedback modes of PUSCH aperiodic CSI feedback are in 16 dimensions.
  • the CSI performs feedback, and finds an index corresponding to the quantized precoding codeword from a 16-dimensional codebook and feeds back to the base station;
  • the feedback mode for all PUCCHs is as follows:
  • the reporting CSI is quantized according to 16 ports, and when the feedback type includes the PMI, the reporting is based on 8-port quantization;
  • the PUCCH may also be determined according to the CSI-RS measurement resource subset selection signaling configured by the base station. A subset of measurement resource ports corresponding to each Report Type report.
  • One way is to determine the subset of pilots selected during the subsequent measurement period based on the content reported in the Report Type; for example:
  • the base station configures eight sets of CSI-RS resources or configurations for the terminal, and the terminal selects a subset from the terminal, for example, the subset may be two sets of CSI-RS resources or configurations;
  • this subset may be one set of CSI-RS resource or configuration
  • the terminal informs the base station of the selected subset information, which can be implemented by feedback of the physical uplink control channel, for example, a 3-bit BEA Index information can complete an indication of a set of CSI-RS resource or configuration;
  • FIG. 30 is a schematic diagram of a channel measurement performed by a terminal using a fed back resource subset according to an embodiment of the present invention.
  • the resource subset selection indication signaling may be fed back in the same Report Type as the measurement resource restriction signaling; and may be fed back together with the RI, as shown in the following figure, FIG. 31 is a terminal provided by an embodiment of the present invention. Another schematic of channel measurement using a subset of the feedback resources.
  • the measurement resource restriction signaling is not fed back, and the base station and the terminal agree to trigger the measurement resource limitation by default when receiving the resource subset selection indication signaling, in a feedback period of the signaling.
  • the indicated subset of measurement resources is used for channel measurement.
  • FIG. 32 is a structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal shown in Figure 32 includes:
  • the first determining module 201 is configured to: according to the feedback mode of the channel information feedback on the physical uplink control channel and/or the feedback type and/or channel state information of the channel information on the physical uplink control channel.
  • the CSI-RS measurement resource subset selection signaling and/or the rank indicator RI value is determined, and the base station determines a CSI-RS resource subset in the CSI-configuration CSI-RS.
  • the processing module 202 is configured to perform measurement and channel information quantization based on the CSI-RS resource subset
  • the feedback module 203 is configured to perform feedback on the physical uplink control channel by using the feedback type included in the feedback mode.
  • the CSI-RS resource subset is a Yc set in an Xc set CSI-RS configuration
  • the CSI-RS resource subset is Yr resource sets in Xr CSI-RS resource set configurations; and/or,
  • the resource subset is Yp CSI-RS port groups in Xp CSI-RS port groups;
  • Xc, Yc, Xr, Yr, Xp and Yp are all positive integers.
  • the first determining module 201 is configured to determine the value of the Yc and/or the value of Yr and/or the value of Yp according to the feedback mode and/or the feedback type.
  • the first determining module 201 is configured to determine an index of a Yc-set CSI-RS configuration according to the feedback mode and/or a feedback type, and/or a Set index included in a Yr CSI-RS resource group Resource Set, And/or group index included in the Yr CSI-RS port group port group.
  • the measurement resource subset selection signaling is bitmap bitmap signaling, and each bit indicates selection information of one or more configurations and/or resource groups and/or port groups.
  • the base station separately configures CSI-RS measurement resource subset selection signaling for different feedback modes and/or feedback types.
  • the first determining module 201 is further configured to determine a subset selection method of the pilot resources according to the feedback category configuration signaling.
  • the first determining module 201 is further configured to determine a subset selection method of the pilot resources according to whether the PMI feedback enables configuration signaling.
  • the first determining module 201 is further configured to determine a subset selection method of the pilot resources according to the dimension of the feedback of the PMI.
  • the embodiment provided by the present invention according to the feedback mode of the channel information feedback on the physical uplink control channel and/or the feedback type of the channel information on the physical uplink control channel and/or the channel state information reference signal CSI-RS measurement resource subset selection signaling And/or the value of the rank indicator RI, determining, by the base station, a CSI-RS resource subset in the CSI-RS configuration CSI-RS, performing measurement and channel information quantization based on the CSI-RS resource subset, and passing the feedback
  • the feedback type included in the mode is fed back on the physical uplink control channel, and the error rate performance of the CSI precision and the feedback type is compromised, so that the balanced CSI precision and the feedback type bit error rate performance are balanced.
  • the embodiment of the present invention further provides a method for determining a subset of channel information measurement pilot resources, as shown in FIG. 33, including:
  • the terminal selects a subset of resources from the channel information measurement pilot resources configured by the base station;
  • the terminal feeds back the resource subset by using a first type of physical uplink control signaling
  • the terminal notifies the base station that the channel state information CSI feedback in the agreed time range is measured by the resource subset of the feedback channel information measurement pilot by using the second type of physical uplink control channel signaling.
  • the agreed time range size is a feedback period of the feedback type in which the feedback signaling is located.
  • the notification signaling and the rank feedback information of the channel are fed back in the same feedback type.
  • the notification signaling and the selection of the resource subset indicate that the signaling is fed back in the same feedback type.
  • the embodiment of the present invention further provides a terminal, as shown in FIG. 34, including:
  • a processing module configured to: select a resource subset from the channel information measurement pilot resources configured by the base station; feed back the resource subset by using the first type of physical uplink control signaling; and notify the base station by using the second type physical uplink control channel signaling
  • the CSI feedback within the agreed time range is measured using a subset of the channel information measurement pilots of the feedback.
  • the agreed time range size is a feedback period of the feedback type in which the feedback signaling is located.
  • the notification signaling and the rank feedback information of the channel are fed back in the same feedback type.
  • the notification signaling and the selection of the subset of resources indicate signaling in the same feedback type. Give feedback.
  • the base station determines a CSI-RS resource subset in the CSI-RS configuration for the CSI process, and compromises the CSI accuracy and the error rate performance of the feedback type, so that the CSI precision and the feedback type are balanced.
  • the BER performance is balanced.
  • an embodiment of the present invention provides a base station, as shown in FIG. 35, including:
  • a sending module configured to send pilot resource subset selection signaling to the terminal for periodic CSI feedback, where the pilot resource subset selection signaling is used by the terminal to determine a pilot resource subset when CSI measurement and feedback.
  • the base station further includes:
  • a second determining module configured to determine, according to the feedback mode, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, by the base station, the subset size of the pilot resource subset selection signaling allowed configuration according to the feedback type.
  • the base station further includes:
  • a second determining module configured to determine, according to the feedback category, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, according to the precoding matrix indicator PMI feedback enabled configuration signaling, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, according to a dimension of the feedback of the PMI, the subset size of the pilot resource subset selection signaling allowed configuration.
  • the base station further includes:
  • a second determining module configured to determine, by the base station, the pilot resource subset selection according to the RI value Signaling allows the configured subset size.
  • the base station further includes:
  • the configuration module is configured to separately configure pilot resource subset selection signaling when the periodic CSI feedback is configured for the P process processes, where P is an integer greater than 1.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when the periodic CSI feedback is configured for the P-set CSI-RS, where P is an integer greater than 1.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when periodic CSI feedback is configured for the feedback classes Class A and Class B, respectively.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when the periodic CSI feedback is respectively configured for the R RI values, where R is an integer greater than 1.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when periodic CSI feedback is respectively configured for PMI enable and disable.
  • the base station further includes:
  • the configuration module is configured to configure pilot resource subset selection signaling when periodic CSI feedback is configured for the RI enabled and disabled states, respectively.
  • the base station further includes:
  • the configuration module is configured to separately configure pilot resource subset selection signaling when the periodic CSI feedback is used for the feedback of the Q PMIs, where Q is an integer greater than 1.
  • a base station sends a pilot resource subset selection signaling to a terminal for periodic CSI feedback, where the terminal determines a pilot resource when CSI measurement and feedback based on the pilot resource subset selection signaling.
  • Set compromise CIT accuracy and feedback type of bit error rate performance, so that balanced CSI accuracy and feedback type of bit error rate performance is balanced.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the above technical solution compromises the bit error rate performance of the CSI precision and the feedback type, so that the CSI precision and the feedback type bit error rate performance are balanced.

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Abstract

L'invention concerne un procédé de sélection de sous-ensemble de ressources pilotes de mesure d'informations de canal, un terminal et une station de base. Le procédé comprend les opérations suivantes : selon un mode de rétroaction d'une rétroaction d'informations de canal sur un canal de commande de liaison montante physique et/ou un type de rétroaction d'informations de canal sur le canal de commande de liaison montante physique et/ou une signalisation de sélection de sous-ensemble de ressources de mesure de signal de référence d'informations d'état de canal (CSI-RS) et/ou une valeur d'indicateur de classement (RI), un terminal détermine un sous-ensemble de ressources de CSI-RS à partir d'un CSI-RS configuré par une station de base pour un traitement de CSI ; sur la base du sous-ensemble de ressources de CSI-RS, le terminal effectue une mesure et une quantification d'informations de canal, et effectue une rétroaction sur le canal de commande de liaison montante physique par l'intermédiaire du type de rétroaction compris dans le mode de rétroaction.
PCT/CN2016/096238 2015-09-25 2016-08-22 Procédé de sélection de sous-ensemble de ressources pilotes de mesure d'informations de canal, terminal et station de base WO2017050077A1 (fr)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109428686B (zh) * 2017-06-22 2021-06-18 中国电信股份有限公司 数据传输方法、系统、终端、基站及计算机可读存储介质
CN110035450B (zh) * 2018-01-12 2020-06-23 维沃移动通信有限公司 测量上报的方法、终端设备和网络设备
CN110831196B (zh) 2018-08-14 2022-01-04 维沃移动通信有限公司 Csi报告配置方法、终端设备和网络设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255694A (zh) * 2011-07-19 2011-11-23 电信科学技术研究院 信道状态信息传输方法和设备
WO2013044886A1 (fr) * 2011-09-30 2013-04-04 华为技术有限公司 Procédé d'indication de mesure de brouillage, procédé de mesure de brouillage, dispositif correspondant et système de communication
CN104584450A (zh) * 2012-06-04 2015-04-29 交互数字专利控股公司 传递多个传输点的信道状态信息(csi)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8908617B2 (en) * 2009-12-31 2014-12-09 Samsung Electronics Co., Ltd. Uplink demodulation reference signal design for MIMO transmission
CN107104777B (zh) * 2011-02-09 2020-05-01 瑞典爱立信有限公司 分层的异构小区部署中的参考符号资源的有效率的使用
JP6026082B2 (ja) * 2011-04-05 2016-11-16 シャープ株式会社 端末、基地局、通信方法および集積回路
US8953699B2 (en) * 2011-11-07 2015-02-10 Google Technology Holdings LLC Method and apparatus for CSI feedback for joint processing schemes in an orthogonal frequency division multiplexing communication system with coordinated multi-point transmission
US20130301447A1 (en) * 2012-05-08 2013-11-14 Marvell World Trade Ltd. Method and System for Reporting Feedback in Cooperative Multipoint Transmission
US11546787B2 (en) * 2012-05-09 2023-01-03 Samsung Electronics Co., Ltd. CSI definitions and feedback modes for coordinated multi-point transmission
WO2013166714A1 (fr) * 2012-05-11 2013-11-14 Nokia Corporation Retour d'informations restreint selon la complexité pour une opération multipoint coopérative
EP2858402B1 (fr) * 2012-06-04 2019-08-07 Huawei Technologies Co., Ltd. Procédé de mesure de puissance reçue de signal, terminal, station de base et système
WO2015060680A2 (fr) * 2013-10-24 2015-04-30 엘지전자 주식회사 Procédé pour rapporter des informations d'état de canal dans un système de communication sans fil, et appareil correspondant
WO2015115706A1 (fr) * 2014-01-28 2015-08-06 Lg Electronics Inc. Procédé de transmission de signal de référence d'après une mise à l'échelle d'antenne adaptative dans un système de communications sans fil, et appareil correspondant
US9571251B2 (en) * 2014-01-30 2017-02-14 Intel Corporation Periodic channel status information (CSI) reporting for enhanced interference management and traffic adaptation (EIMTA) systems with CSI subframe sets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255694A (zh) * 2011-07-19 2011-11-23 电信科学技术研究院 信道状态信息传输方法和设备
WO2013044886A1 (fr) * 2011-09-30 2013-04-04 华为技术有限公司 Procédé d'indication de mesure de brouillage, procédé de mesure de brouillage, dispositif correspondant et système de communication
CN104584450A (zh) * 2012-06-04 2015-04-29 交互数字专利控股公司 传递多个传输点的信道状态信息(csi)

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