WO2016119652A1 - Ue上报csi及触发ue上报csi的方法和装置 - Google Patents

Ue上报csi及触发ue上报csi的方法和装置 Download PDF

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Publication number
WO2016119652A1
WO2016119652A1 PCT/CN2016/071976 CN2016071976W WO2016119652A1 WO 2016119652 A1 WO2016119652 A1 WO 2016119652A1 CN 2016071976 W CN2016071976 W CN 2016071976W WO 2016119652 A1 WO2016119652 A1 WO 2016119652A1
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Prior art keywords
subframe
csi
narrowband
reference resource
csi reference
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PCT/CN2016/071976
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English (en)
French (fr)
Inventor
张雯
夏树强
戴博
石靖
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中兴通讯股份有限公司
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Priority to US15/547,581 priority Critical patent/US20180019855A1/en
Publication of WO2016119652A1 publication Critical patent/WO2016119652A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0636Feedback format
    • H04B7/0645Variable feedback
    • H04B7/0647Variable feedback rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027Scheduling of signalling, e.g. occurrence thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present application relates to, but is not limited to, the field of wireless communications, and in particular, to a User Equipment (UE) for reporting Channel State Information (CSI) and a method and apparatus for triggering a UE to report CSI.
  • UE User Equipment
  • CSI Channel State Information
  • MTC Machine Type Communication
  • UE User Equipment
  • M2M Machine to Machine
  • LTE Long-Term Evolution
  • LTE-Advance Long-Term Evolution Advance
  • MTC multi-class data services based on LTE/LTE-A will also be more attractive.
  • MTC devices are usually low-cost devices with features such as low RF (Radio Frequency) bandwidth and single receive antenna.
  • the RF transmit and receive bandwidth is typically 1.4 MHz.
  • the MTC UE can receive only six signals in a continuous PRB (Physical Resource Block) in one subframe.
  • PRB Physical Resource Block
  • the average CSI of the full bandwidth or the CSI of the UE selected/high-level configured sub-band on one subframe is reported on the reporting subframe, and the CSI includes at least one of the following: CQI (Channel Quality Indicator (Channel Quality Indicator), PMI (Precoding Matrix Indicator), PTI (Precoding Type Indicator), RI (Rank Indication).
  • CQI Channel Quality Indicator
  • PMI Precoding Matrix Indicator
  • PTI Precoding Type Indicator
  • RI Rank Indication
  • An embodiment of the present invention provides a method and an apparatus for reporting CSI by a UE, where the UE can report CSI of a narrowband resource.
  • An embodiment of the present invention provides a method for a UE to report CSI, including:
  • the UE determines the CSI reference resource, and reports the CSI on the CSI reference resource, where the CSI reference resource is one or more subframes in the time domain and one or more narrowbands in the frequency domain.
  • An embodiment of the present invention further provides an apparatus for reporting CSI, where the apparatus is located in a UE, where the apparatus includes a CSI reference resource determining module and a reporting module, where:
  • the CSI reference resource determining module is configured to determine a CSI reference resource, where the CSI reference resource is one or more subframes in the time domain and one or more narrowbands in the frequency domain;
  • the reporting module is configured to report CSI on the CSI reference resource.
  • the embodiment of the invention further provides a method and a device for triggering a UE to report CSI, which enables the UE to report the CSI of the narrowband resource.
  • the embodiment of the invention provides a method for triggering a UE to report CSI, including:
  • the network side sends the following content to the UE: the reference signal, the related resource information reported periodically, and/or the related resource information that triggers the reporting.
  • the embodiment of the invention further provides an apparatus for triggering a UE to report CSI, including:
  • the first sending module is configured to send a reference signal to the UE
  • the second sending module is configured to send the following content to the UE: related resource information reported periodically and/or related resource information triggered by the reporting.
  • an embodiment of the present invention further provides a UE, including: a processor and a communication unit, where the processor is configured to determine a CSI reference resource, where the CSI reference resource is one or more subframes in a time domain, One or more narrowbands in the frequency domain; the communication unit is configured to report CSI on the CSI reference resource.
  • an embodiment of the present invention further provides a computer readable storage medium, where a computer can be stored. Executing an instruction, when the computer executable instruction is executed, implementing a method for the UE to report CSI.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, and when the computer executable instructions are executed, implementing the method for triggering a CSI to be reported by a UE.
  • the UE can report the narrowband CSI, and is particularly suitable for the user equipment with limited receiving capability.
  • Embodiment 1 is a flow chart of Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural diagram of a device according to Embodiment 3 of the present invention.
  • FIG. 3 is a schematic structural diagram of a device according to Embodiment 4 of the present invention.
  • FIG. 5 is an example diagram in Application Example 2
  • FIG. 8 is another example diagram in Application Example 10.
  • the UE includes a UE that cannot receive a signal on a full bandwidth, and the bandwidth of the UE receiving the downlink signal is a narrow band as described herein.
  • the inability to receive full bandwidth includes, but is not limited to, the ability to receive full bandwidth but limited capacity to receive and not to receive full bandwidth.
  • This embodiment describes a method for reporting CSI by a UE.
  • the UE reports the CSI according to a preset period, and the period for reporting the CSI by the UE may also be configured by the network side. As shown in FIG. The following steps:
  • Step 110 The UE determines a CSI reference resource, where the CSI reference resource is one or more subframes in the time domain and one or more narrowbands in the frequency domain.
  • the CSI reference resource may be one of the following:
  • the CSI reference resource is a downlink subframe in the time domain, the downlink subframe is a subframe before the preset subframe, and the CSI reference resource is a narrowband corresponding to the downlink subframe in the frequency domain. ;
  • the CSI reference resource is a pre-designated narrowband in the frequency domain, and is one or more downlink subframes corresponding to the pre-designated narrowband in the time domain, where the downlink subframe is before the preset subframe. Subframe
  • the CSI reference resource is a narrowband in the frequency domain that is different from the narrowband corresponding to the CSI reported in the previous K times, where K is a positive integer, and K ⁇ N, N is the total number of narrowbands to be measured, in the time domain.
  • K is a positive integer
  • K ⁇ N is the total number of narrowbands to be measured, in the time domain.
  • the CSI reference resource is one or more downlink subframes in a time window in the time domain, and is a narrowband corresponding to the downlink subframe in the frequency domain.
  • the subframe before the preset subframe described herein includes the preset subframe itself.
  • the narrowband of the downlink signal received by the UE on one subframe is referred to as the narrowband corresponding to the subframe
  • the narrowband of the downlink signal received by the UE on the time domain CSI reference resource is referred to as a narrowband corresponding to the CSI reference resource.
  • the UE reports the CSI on the CSI reference resource, and the CSI reference resource may also be referred to as the reported CSI. Corresponding CSI reference resources.
  • the narrowband corresponding to the downlink subframe may be a preset narrowband or a configured narrowband, that is, the narrowband for each measurement is a predetermined, fixed narrowband. For example, if the network side configures a narrowband, the UE receives the downlink signal on the narrowband; if the network side configures multiple narrowbands, the UE may select a narrowband from which to receive the downlink signal.
  • the time window may be selected before the preset subframe.
  • the narrowband corresponding to part or all of the downlink subframes in the time window is a preset or configured narrowband, and the UE receives the downlink signal on a narrowband corresponding to part or all of the downlink subframes in the time window.
  • the preset is pre-set, and the configuration is delivered by the network side.
  • the CSI reference resource receives a subframe of control information and/or downlink data for the UE in the time domain, and the narrowband corresponding to the subframe of the received control information and/or the downlink data traverses all within a period of time Available narrowband.
  • the narrowband traversal of all available narrowbands is implemented by the network side configuration. That is, the network side configures the narrowband of each downlink signal to be sent differently until the available narrowband is configured to transmit the downlink signal.
  • the available narrowband may be a narrowband that pre-divides the system bandwidth, or may be a narrowband configured by an eNB (evolved Node B), such as an SIB (System Information Block) or an RRC (Radio Resource Control). Control) Narrowband of notifications in signaling.
  • eNB evolved Node B
  • SIB System Information Block
  • RRC Radio Resource Control
  • the CSI reference resource may also be a subframe in the measurement subframe set in the time domain, where the CSI reference resource is preset in the frequency domain or a first narrowband notified by the eNB, where the UE is in the Receiving a downlink signal on the first narrowband on the subframe in the measurement subframe set.
  • the UE abandons receiving the control signal and/or the data signal, only A downlink signal is received on the first narrowband on the subframe in the measurement subframe set.
  • the subframe in the time domain of the CSI reference resource is a valid downlink subframe, and the valid downlink subframe satisfies at least one of the following conditions:
  • the subframe is a downlink subframe
  • the subframe is not a multicast broadcast single frequency network except in transmission mode 9 or transmission mode 10.
  • MMSFN Multicast Broadcast Single Frequency Network
  • DwPTS Downlink Pilot Time Slot
  • the subframe is not within the configured measurement interval
  • the subframe should be a subframe in the CSI subframe set.
  • the time domain CSI reference resource is one or more downlink subframes that are closest to the reported subframe in the subframe before the preset subframe.
  • the downlink subframe is a valid downlink subframe as described above.
  • the CSI-Reference Signal (CSI-Reference Signal) of the CSI reference resource in one of the one or more subframes in the time domain does not exceed the bandwidth corresponding to the subframe in the frequency domain.
  • Step 120 The UE reports the CSI on the CSI reference resource.
  • the CSI content reported by the UE may include at least one of the following information: a precoding matrix indication (PMI) on the CSI reference resource, a precoding type indication (PTI) on the CSI reference resource, and a CQI.
  • the CQI in the CSI reported by the UE may be an absolute value and/or a relative value, and specifically includes one of the following:
  • CQI channel quality indicator
  • the narrowband CQI corresponding to the narrowband index includes at least one of: a CQI on a first bandwidth, a CQI of each narrowband corresponding to the narrowband index;
  • the first bandwidth is composed of all narrowbands corresponding to the narrowband index;
  • the narrowband CQI corresponding to the subframe index includes at least one of: a CQI on a second bandwidth, and each of the subframe indexes a narrowband CQI; wherein the second bandwidth is composed of all narrowbands corresponding to the subframe index;
  • the CSI is reported by the UE through a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • This embodiment describes a method for a CSI to be reported by a UE.
  • the UE reports the CSI after receiving the information that triggers the CSI report.
  • the information reported by the trigger CSI may be included in Downlink Control Information (DCI) or Random Access Response (RAR).
  • DCI is a DCI for scheduling a Physical Uplink Shared Channel (PUSCH) or a DCI or a dedicated DCI for scheduling a Physical Downlink Shared Channel (PDSCH).
  • the RAR is an RAR when non-competitive access or a RAR when competing for access.
  • Step 210 The UE determines a CSI reference resource, where the CSI reference resource is one or more subframes in the time domain and one or more narrowbands in the frequency domain.
  • the CSI reference resource may be one of the following resources:
  • the CSI reference resource is a downlink subframe that receives the DCI in the time domain, and is a narrowband corresponding to the downlink subframe in the frequency domain;
  • the CSI reference resource is a downlink subframe in which the PDSCH scheduled by the DCI is located in the time domain, and is a narrowband corresponding to the downlink subframe in the frequency domain;
  • the CSI reference resource is one or more downlink subframes in a time window in a time domain, and is a narrowband corresponding to the downlink subframe in a frequency domain;
  • the CSI reference resource includes the resource indicated in the DCI or RAR.
  • the narrowband corresponding to the downlink subframe may be a preset narrowband or a configured narrowband.
  • the narrowband corresponding to part or all of the downlink subframes in the time window is a preset or configured narrowband, and the UE receives the downlink signal on a narrowband corresponding to part or all of the downlink subframes in the time window.
  • Step 220 The UE reports the CSI on the CSI reference resource.
  • the subframe in which the UE reports the CSI is one of the following:
  • the first DCI is a DCI including the information that triggers the CSI reporting, and the UE reports the CSI according to the information reported by the triggering CSI;
  • the second DCI scheduled to send the PUSCH subframe, the last DCI of the second DCI is the DCI including the information that triggers the CSI reporting, the UE reports the CSI according to the information reported by the triggering CSI;
  • n is a subframe in which the DCI or RAR of the information reported by the triggering CSI is located, and k is a positive integer greater than 0 and not less than a preset value.
  • This embodiment describes an apparatus for reporting CSI, where the apparatus is located in a UE, as shown in FIG. 2, the apparatus includes a CSI reference resource determining module and a reporting module, where:
  • the CSI reference resource determining module is configured to determine a CSI reference resource, where the CSI reference resource is one or more subframes in the time domain and one or more narrowbands in the frequency domain;
  • the reporting module is configured to report CSI on the CSI reference resource.
  • the reporting module is configured to: periodically report the CSI on the CSI reference resource; or report the CSI on the CSI reference resource after receiving the information that triggers the CSI reporting.
  • the information reported by the triggering CSI is included in the DCI or in the RAR.
  • the DCI is: a DCI that schedules a physical uplink shared channel (PUSCH) or a DCI that schedules a physical downlink shared channel (PDSCH) or a dedicated DCI.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • the reporting module when the reporting module is configured to periodically report the CSI on the CSI reference resource, the CSI reference resource determined by the CSI reference resource determining module is used in Embodiment 1.
  • the reporting module when the reporting module is configured to receive a trigger CSI report
  • the CSI reference resource is reported in the downlink control information (DCI) or the random access response (RAR), and the CSI reference resource determining module determines the CSI reference resource, when the CSI is used to report the CSI on the CSI reference resource. And in which subframes the reporting module reports the CSI on the CSI reference resource, see Embodiment 2.
  • DCI downlink control information
  • RAR random access response
  • the CSI reference resource determining module is further configured to determine that the CSI reference resource receives subframes for controlling information and/or downlink data for the UE in the time domain, or is a sub-frame of the measurement subframe set. frame. For details, refer to the description in the first embodiment.
  • the CSI reference resource determined by the CSI reference resource determining module is a valid downlink subframe in a time domain, and the condition that the valid downlink subframe is satisfied is as described in Embodiment 1. Said.
  • the time domain CSI reference resource determined by the CSI reference resource determining module is one or more downlink subframes that are closest to the reported subframe in the subframe before the preset subframe.
  • the CSI reference resource determined by the CSI reference resource determining module is a CSI reference signal (CSI-RS) in one subframe of one or more subframes in the time domain in the frequency domain. The bandwidth corresponding to the subframe is not exceeded.
  • CSI-RS CSI reference signal
  • the device in this embodiment is a device for implementing the foregoing method of Embodiment 1 and Embodiment 2, and other implementation details refer to the descriptions in Embodiment 1 and Embodiment 2 above.
  • the network side triggers the UE to report CSI in the following manner:
  • the network side sends the following content to the UE: the reference signal, the related resource information reported periodically, and/or the related resource information that triggers the reporting.
  • the reference signal is used for channel measurement, including CRS (Cell Reference Signal) and/or CSI-RS (CSI reference signal).
  • CRS Cell Reference Signal
  • CSI-RS CSI reference signal
  • the bandwidth of the CSI-RS does not exceed the bandwidth of the narrowband that is sent to the downlink signal of the UE in the frequency domain.
  • the related resource information reported in the above period includes at least one of the following information:
  • reporting period and/or a subframe offset may also be preset;
  • the resource used by the CSI is reported; for example, the UE reports the CSI through the PUCCH, and the reported resource sent by the network side is the PUCCH resource. If the UE reports the CSI through the PUSCH, the reported resource is the PUSCH resource.
  • Time window information the time window information may also be preset
  • Measuring a subframe set measuring, on a subframe in the subframe set, transmitting a downlink signal in a fixed narrowband
  • the frequency domain CSI reference resource the narrowband corresponding to the downlink subframe in the a1 or a4 in the first embodiment, and the narrowband corresponding to the downlink subframe in the c3 in the second embodiment;
  • a narrow band is available.
  • the related resource information reported by the triggering includes at least one of the following information:
  • Reporting resources used by the CSI for example, a PUCCH resource or a PUSCH resource;
  • the related resource information that is triggered to be reported is included in downlink control information (DCI) or random access response (RAR).
  • DCI is: scheduling DCI of the PUSCH or scheduling DCI of the PDSCH or dedicated DCI.
  • the PUSCH resource is preset.
  • the RAR may be an RAR when non-competitive access or an RAR when competing for access.
  • the apparatus for triggering the CSI to report the CSI by implementing the foregoing method includes a first sending module and a second sending module:
  • the first sending module is configured to send a reference signal to the UE
  • the second sending module is configured to send the following content to the UE: related resource information reported periodically and/or related resource information triggered by the reporting.
  • the reference signal comprises a CRS and/or a CSI reference signal CSI-RS.
  • the bandwidth of the CSI-RS does not exceed the bandwidth of the narrowband that is sent to the downlink signal of the UE in the frequency domain.
  • the second sending module is configured to: send the related resource information reported by the trigger to be sent in a DCI or RAR.
  • the CSI reference resource is a subframe in the time domain, and is determined by the reporting mode configured by the eNB in the frequency domain, for example, reporting CQI on the full bandwidth, or reporting one or more sub-bands or all of the selected sub-bands.
  • the CQI of the band, the sub-band is a sub-band divided by the eNB, and the size of the sub-band is related to the system bandwidth.
  • the number of reports is also determined by the system bandwidth. of.
  • the receiving capability is limited, and the wideband CQI is not available in one subframe.
  • the UE cannot measure multiple subbands and select one or more best subbands, for 20 MHz.
  • the system bandwidth, the subband size is 8 PRBs, and the MTC UE cannot receive even one subband.
  • the UE solves the problem that the MTC UE cannot report the CSI by measuring the narrowband in one or more subframes, and has better effects for supporting the MTC UE with smaller RF bandwidth.
  • the method of the embodiment of the present invention is not limited to the application of the MTC UE, and other UEs may also report the CSI by referring to the method of the embodiment of the present invention.
  • the examples 1 to 4 are examples in which the UE reports the CSI according to the preset period, and the difference is that the CSI reference resources are different.
  • Examples 5 to 9 are examples in which the UE reports the CSI according to the trigger information, and the difference is that the CSI reference resource and the reporting manner are different;
  • Ten is the content contained in the CSI reported by the UE.
  • the above examples may be combined with each other, for example, the example ten may be combined with other examples.
  • the features in the above examples can also be combined with each other.
  • the definition of "the time domain CSI reference resource is a valid downlink subframe" and the effective subframe in the first example is also applicable to other examples.
  • the reported content includes, in addition to the CQI on the CSI reference resource, optionally at least one of the following: PMI, RI, PTI on the CSI reference resource, and is applicable to other examples.
  • the measurement subframe set can be configured in each of the above examples.
  • the UE periodically reports CSI.
  • the transmission period and the subframe offset of the CSI may be preset, or may be notified by an eNB (Evolved NodeB).
  • the CSI reference resources include time domain resources (or time domain CSI reference resources) and frequency domain resources (or frequency domain CSI reference resources).
  • the CSI reference resource is a downlink subframe in the time domain
  • the downlink subframe is a subframe before the preset subframe
  • the frequency domain is a narrowband corresponding to the time domain CSI reference resource.
  • the previous subframes include: n-4, n-5, n-6.
  • the narrowband corresponding to the time domain CSI reference resource is a narrowband in which the UE receives the downlink signal on the preset downlink subframe.
  • the time domain CSI reference resource may be a subframe that receives downlink control information and/or downlink data information, where the frequency domain CSI reference resource is downlink control information and/or downlink data.
  • the narrowband may be preset.
  • the narrowband may also be obtained according to a preset rule.
  • the UE only receives the PDSCH on the PRBs #5 and #7, and presets the frequency domain CSI of the UE.
  • the reference resource is a narrow band formed by M PRBs starting from the initial PRB, that is, PRB #5 to #10, and is not limited to such a mode in practical applications, as long as it is a narrow band including the PRB where the PDSCH is located.
  • the frequency domain CSI reference resource (ie, the narrowband corresponding to the downlink subframe in the foregoing time domain) may be a preset or configured narrowband, and the UE receives the downlink signal on the preset or configured narrowband.
  • the CQI reported by the UE in the CQI reporting subframe is the preset narrowband CQI in FIG.
  • the preset narrowband is frequency hopped at full bandwidth.
  • the narrowband in which the control information and/or data information is received traverses all available narrowbands over a period of time. Traversing all available narrowbands means using the available narrowband each time a downstream signal is received for a period of time until all available narrowbands are used up.
  • the available narrowband may be a narrowband that pre-divides the system bandwidth, or may be a narrowband configured by the eNB, such as in SIB or RRC. Narrowband of notifications in signaling.
  • the time domain CSI reference resource is one or more downlink subframes that are closest to the reported subframe in the subframe before the preset subframe. For example, if the reporting subframe is n, and the subframe before the preset subframe includes n-4, n-5, and n-6, then the time domain CSI reference resource is subframe #n-4.
  • the time domain CSI reference resource is a valid downlink subframe
  • the valid downlink subframe refers to a subframe that satisfies at least one of the following conditions:
  • the subframe is a downlink subframe
  • the subframe is not an MBSFN (Multicast Broadcast Single Frequency Network) subframe except in transmission mode 9 or 10;
  • MBSFN Multicast Broadcast Single Frequency Network
  • the subframe is not within the configured measurement gap
  • the subframe should be a subframe in the CSI subframe set.
  • the time domain is The CSI reference resource.
  • the CSI reference resource corresponding to the CSI reported by the UE is a subframe (measurement subframe) in the measurement subframe set in the time domain.
  • the measurement subframe set is predefined or notified by the eNB, and the subframes in the measurement subframe set may be continuous or discontinuous.
  • the UE is in the preset pattern.
  • the downlink signal (including control information and/or data information) is received on a narrowband preset or eNB-notified.
  • the narrowband can traverse the entire system bandwidth or the narrow band of the configuration over time.
  • the UE may further select, as a time domain CSI reference resource, a downlink subframe that is closest to the reported subframe from the measurement subframe set before the preset subframe.
  • the preset narrowband on the measurement subframe is a narrowband pre-divided for each system bandwidth, or a narrowband configured for the eNB, such as a narrowband notified in the SIB or in RRC signaling.
  • the eNB notifies the four narrowbands available to the UE in the SIB, which are narrowbands #0, #1, #2, and #3, respectively.
  • the measurement subframe set notified by the eNB to different UEs and the reception narrowband on the measurement subframe set may be different.
  • subframe #1 is a measurement subframe
  • the preset narrowband on the measurement subframe is narrowband #5
  • the eNB schedules the UE to receive the PDSCH on narrowband #1 on subframe #1, then In subframe #1, the UE receives the downlink signal of narrowband #5 and abandons the reception of the PDSCH on narrowband #1.
  • the CSI reference resource corresponding to the CSI reported by the UE is a pre-specified narrowband in the frequency domain
  • the specified narrowband is a narrowband in a narrowband set, for example, for each system bandwidth pre- Defining a narrowband set, or the eNB configures a narrowband set for the UE, and the UE reports a narrowband CSI in the narrowband set in each reported subframe, and the specified narrowband corresponding to the CSI reported in each reported subframe is preset.
  • the specified narrowband corresponding to the CSI reported by the reporting subframe is arranged in a preset order.
  • the narrowband set has four narrowbands, and the narrowband indexes are 0, 1, 2, and 3, respectively, and the UE performs CSI reporting on the narrowband in the order of 0, 1, 2, and 3.
  • the CSI reference resource corresponding to the CSI reported by the UE is one or more subframes corresponding to the frequency domain CSI reference resource in the time domain, and the one or more subframes are preset subframes.
  • the UE receives the downlink signal on the frequency domain CSI reference resource on the time domain CSI reference resource, ie, the one or more subframes.
  • the frequency domain CSI reference resource is not exactly the narrowband that the UE receives the downlink signal, that is, the narrowband of the downlink signal received by the UE in multiple subframes covers the pre-defined narrowband
  • the frequency domain CSI reference resource is For the multiple subframes.
  • the subframe #2 is a subframe for reporting CSI
  • the preset subframe is an n-4 subframe, that is, subframe #8, and the grid region in FIG. 5 is a frequency domain CSI reference resource.
  • the narrowband of the downlink signal received by the UE is shown as a diagonal line, where subframe #5, #7, #8 The narrowband of the downlink signal received by the UE covers the grid area.
  • the time domain CSI reference resources are subframes #5, #7, and #8.
  • the CQI reported by the UE may be the average CQI of all the narrowbands in the subframes, or may be the average CQI of the PRBs belonging to the preset narrowband in the narrowband on the subframes. Example ten.
  • the CSI reference resource corresponding to the CSI reported by the UE may be a subframe in the measurement subframe set in the time domain, and the narrowband corresponding to the subframe is the pre-specified narrowband.
  • the measurement subframe set refer to the example 1. This example can be combined with various application methods related to the measurement subframe set in Example 1.
  • the CSI reference resource corresponding to the CSI reported by the UE is a narrowband that is different from the narrowband that corresponds to the CSI reported in the previous K times in the frequency domain, and the narrowband corresponding to the CSI refers to the CSI reference resource corresponding to the CSI.
  • the UE when reporting the CSI on the CSI reference resource, the UE should also report the narrowband index corresponding to the narrowband, so that the eNB obtains the narrowband information corresponding to the reported CSI.
  • the CSI reference resource corresponding to the CSI reported by the UE may be a subframe that receives downlink control information and/or downlink data information in the time domain, or may also be a subframe in the measurement subframe set.
  • the measurement subframe set is predefined or notified by the eNB. On the subframe in the measurement subframe set, the UE receives on a preset or notified narrowband.
  • the base station may also configure a measurement subframe set. For various applications of the measurement subframe set, see Example 1, this example may be combined with various application manners related to the measurement subframe set in Example 1.
  • the time domain CSI reference resource is a subframe that receives downlink control information and/or downlink data information
  • the subframe that receives the downlink signal closest to the reported subframe is a time domain CSI reference resource.
  • the time domain CSI reference resource is one or more downlink subframes in a time window
  • the frequency domain CSI reference resource is a subframe corresponding to the time domain CSI reference resource.
  • the upper UE receives the narrowband of the downlink signal, and the narrowband corresponding to the downlink subframe of the real-time domain CSI reference resource.
  • the size of the time window is preset or notified by the eNB, such as 5 ms or 10 ms notified by the eNB.
  • the start or the end position of the time window may also be preset.
  • the time window is a plurality of subframes before the preset subframe (the definition of the preset subframe is the same as the first example), for example, five subframes. As shown in FIG. 6, the time window is subframes #4 to #8.
  • the narrowband corresponding to the downlink subframe of the time domain CSI reference resource may be preset or may be configured on the network side.
  • the narrowband corresponding to part or all of the downlink subframes in the time window is a preset or configured narrowband, and the UE receives the downlink signal on a narrowband corresponding to part or all downlink subframes in the time window.
  • the UE receives the downlink signal in a fixed narrow band within the time window.
  • the base station may also configure a measurement subframe set.
  • a measurement subframe set For various applications of the measurement subframe set, see Example 1, this example may be combined with various application manners related to the measurement subframe set in Example 1.
  • the UE reports the CSI on the CSI reference resource after receiving the information that triggers the CSI report.
  • the UE receives the CSI report request information sent by the eNB, where the CSI report request information is included in the DCI or the RAR, and the UE performs the CSI report in the specified subframe.
  • the RAR may be a non-contention access RAR or a contention access RAR.
  • the CSI reporting mode of the UE includes:
  • the UE receives the DCI that triggers the CSI reporting in the n subframe.
  • the DCI is the DCI of the scheduling PUSCH.
  • the UE reports the CQI on the scheduled PUSCH in the n+k subframe.
  • the subframe that reports the CSI is a reportable subframe that is closest to the subframe where the DCI is located.
  • k 4.
  • the time domain CSI reference resource is subframe #n
  • the frequency domain reference resource is a narrowband corresponding to subframe #n.
  • the UE receives the DCI that triggers the CSI reporting in the n subframe, and the DCI is the DCI that schedules the first PUSCH. After receiving the DCI, the UE does not report the CQI in the subframe in which the first PUSCH is sent. After receiving the DCI of the next scheduled second PUSCH, the CQI is reported in the subframe in which the second PUSCH is transmitted, and the next DCI may also be the DCI including the triggering CSI reporting information.
  • the CSI reference resource of the CSI reported by the UE is all or part of a subframe in a time window in the time domain, for example, the time window is a subframe between the subframes where the two DCIs are located, and the time domain CSI
  • the reference resource is one or more subframes or all subframes in the time window, and the frequency domain CSI reference resource is a narrowband corresponding to the time domain CSI reference resource.
  • the time window can be preset or configured on the network side.
  • the narrowband corresponding to part or all of the downlink subframes in the time window is a preset or configured narrowband, and the UE receives the downlink signal on a narrowband corresponding to part or all downlink subframes in the time window.
  • the UE receives the downlink signal in a preset narrowband within the time window.
  • the measurement subframe set may also be configured in this example, and the measurement subframe set concept and related features are described in the first example.
  • the DCI may also include CSI reference resource information, that is, narrowband information and/or subframe information.
  • the DCI includes a narrowband index and a subframe index; or the DCI includes a narrowband index and an offset of the subframe, and the UE determines the received and measured subframe according to the subframe offset, where the subframe is The narrowband is received and measured; or the DCI may also include a plurality of narrowband indices to indicate that the UE receives and measures on the few narrowbands in subsequent subframes; or the DCI may also include several subframe indices.
  • the subframe indicated in the DCI is a subframe within the time window.
  • CSI reference resource information may also be included in the RAR.
  • the application mode in which the CSI reference resource information is included in the DCI or the RAR can be combined with the features of other application examples.
  • the UE receives the DCI or RAR that triggers the CSI reporting in the n subframe, which is: DCI for scheduling PDSCH reception or PUSCH transmission, or a proprietary DCI.
  • the RAR may be a non-contention access RAR or a contention access RAR.
  • UE The CSI is reported in a preset subframe, and the subframe and the subframe in which the CSI is reported may be in a fixed relationship. For example, if the subframe that triggers the CSI report is n, the reported subframe is n+k. k is a number not less than a preset value.
  • the CSI reference resource is a subframe in a time window in the time domain, and the number of subframes included in the time window is not less than 1.
  • the time window triggers the DCI reported by the CSI or the subframe where the RAR is located to the reported subframe. All subframes or partial subframes or one subframe in the time window are time domain CSI reference resources, and the frequency domain reference resources are narrowbands corresponding to the time domain reference resources.
  • the time window is [m, n-k], where m is a subframe that triggers CSI reporting, n is a reporting subframe, and k is a preset value, and is an integer not less than 4.
  • the narrowband corresponding to part or all of the downlink subframes in the time window is a preset or configured narrowband, and the UE receives the downlink signal on a narrowband corresponding to part or all downlink subframes in the time window.
  • the time domain CSI reference resource may be a subframe that receives downlink control information and/or downlink data information, or a subframe that measures a subframe set.
  • the measurement subframe set may be defined as a K subframe that triggers a DCI reported by the CSI or a subframe after the RAR is located (including a subframe in which the DCI or the RAR is located), and in the subframe corresponding to the measurement subframe set, the UE is preset or Receive on the narrow band of notifications.
  • this example 1 can be combined with various application modes related to the measurement subframe set in Example 1.
  • the time domain CSI reference resource is a valid downlink subframe in the time window, and the definition of the valid downlink subframe is as described in example 1.
  • the channel for reporting the CSI by the UE may be a PUCCH.
  • the PUSCH may be used, or the CSI may be specified on the PUSCH. If the CSI is transmitted using the PUSCH, the PUSCH resource may be preset or notified.
  • the CSI reference resource is an n+k subframe in the time domain and a narrowband in the frequency domain to receive the PDSCH.
  • the CSI is reported in a preset subframe, and the reported subframe and the triggered CSI are reported. There may be a fixed relationship between the subframes, for example, the subframe that triggers the CSI report is n, the reported subframe is n+m, and m is a number that is not less than a preset value.
  • the channel for reporting the CSI by the UE may be a PUCCH.
  • the PUSCH may be used, or the CSI may be specified on the PUSCH. If the CSI is transmitted using the PUSCH, the PUSCH resource may be preset or notified.
  • the base station may also configure a measurement subframe set.
  • a measurement subframe set For various applications of the measurement subframe set, see Example 1, this example may be combined with various application manners related to the measurement subframe set in Example 1.
  • the UE receives the RAR that triggers the CSI reporting in the n subframe, and the RAR includes an uplink scheduling grant, and the scheduling UE sends the message 3 in the n+k subframe, and the CSI reported by the UE is included in the message 3.
  • the time domain CSI reference resource is a preset subframe, such as subframe #n+k-4, and the frequency domain reference resource is a preset narrowband.
  • the RAR can also contain CSI reference resources.
  • the time domain CSI reference resource may be a subframe that receives downlink control information and/or downlink data information, or a subframe that measures a subframe set.
  • the measurement subframe set may be defined as a subframe in which the DCI or the RAR reported by the CSI is triggered and the subsequent subframes.
  • the UE receives the narrowband on the preset or the notification.
  • this example can be combined with various application modes related to the measurement subframe set in Example 1.
  • the channel reported by the UE is a PUCCH.
  • the reported subframe may also be sent together with the PUSCH or still transmitted on the PUCCH.
  • This example describes that the CSI reported by the UE includes one of the following contents:
  • the CQI may be an average CQI, for example, the frequency domain CSI reference resource is 4 narrowbands, and then calculating an average CQI on the four narrowbands;
  • the narrowband CQI corresponding to the narrowband index includes one of: CQI on the first bandwidth, and the narrowband index corresponding to Each narrowband CQI; wherein the first bandwidth is comprised of all narrowbands corresponding to the narrowband index;
  • the number of reported narrowbands m may be a preset or a fixed value notified by the eNB, or 1 ⁇ m ⁇ M, where M is preset or notified by the eNB.
  • the narrowband and index in the system bandwidth can be predefined or preset. For example, each system bandwidth is pre-divided into several narrowbands, which are numbered 0, 1, 2, ... from the lowest frequency to the highest zero.
  • the narrowband in the system bandwidth is configured by the eNB, for example, in the SIB or in the RRC signaling, and the narrowband of the notification is numbered 0, 1, 2, ... in a certain order.
  • the narrowband index may be composed of an index of each narrowband reported, for example, a system bandwidth of 20 MHz is pre-divided into 16 narrowbands, represented by a binary number of 4 bits, and a narrowband reported by the UE is narrowbands #5 and #6, then The narrowband index is "0101" and "0110"; or the narrowband index may also be composed of all reported narrowband joint indexes, such as narrowband #5 and #6 represented by a unique number r; or the narrowband index may also be a bitmap (bitmap), the number of bits of the bitmap may be the same as the total number of narrow bands.
  • bitmap bitmap
  • the narrowband CQI corresponding to the narrowband index may be a CQI on a narrowband corresponding to one subframe, or may be a narrowband CQI corresponding to multiple subframes, and the UE receives a downlink signal in each of the multiple subframes.
  • the narrow bands all contain a portion of the narrow band corresponding to the narrow band index. Two examples are shown in Figure 7 and Figure 8.
  • the system bandwidth is 10MHz, which is divided into 8 narrowbands.
  • the last two RBs (Resource Blocks) are not divided into narrowbands.
  • the CSI time domain reference resources are subframes #4 to #8, and the narrowband of the frequency domain CSI reference resource and the system bandwidth partition are aligned, and five narrowband CQIs need to be reported.
  • the CSI time domain reference resources in FIG. 8 are also subframes #4 to #8, and the narrowband division is the same as that in FIG. 7, but the narrowband of the frequency domain CSI reference resource and system bandwidth division is not aligned, corresponding to three narrowbands in the system bandwidth.
  • the three narrow-band CQIs need to be reported.
  • a CQI of the narrowband corresponding to the subframe index includes one of the following: a CQI on the second bandwidth, and a corresponding one of the subframe indexes. a CQI of each narrowband; wherein the second bandwidth is composed of all narrowbands corresponding to the subframe index;
  • the number k of reported subframes may be preset or a fixed value notified by the eNB, or 1 ⁇ k ⁇ K, where K is preset or notified by the eNB.
  • the index of the k subframes may be composed of an index of each subframe that is reported, or may be a joint index corresponding to a decimal number, or may be a bitmap. If the CSI time domain reference resource is a time window, the Bitmap The number of bits can be the same as the length of the time window.
  • the CQI may be an average CQI on a narrow band corresponding to k subframes, or may be composed of a narrowband CQI corresponding to each subframe.
  • the CQI may be composed of all narrowband CQIs, such as narrowbands in the system bandwidth and the index may be predefined or preset. For example, each system bandwidth is pre-divided into a number of narrowbands, from the lowest frequency to the highest frequency. The zero number is 0, 1, 2, ..., or configured for the eNB, for example, in the SIB or RRC signaling, the narrowband of the notification is numbered 0, 1, 2, ... in a certain order. If the UE has an unmeasured narrowband, when the CQI is reported in the frequency domain narrowband order, a preset value is used to represent the CQI of the unmeasured narrowband, for example, the CQI index is 0, for example, the subframes in the time window are common.
  • the UE Corresponding to five narrowbands, but the UE has only two frequency domain CSI reference resources, that is, the UE only measures two narrowband CQIs.
  • the reported content may be, for example, CQI1, CQI20000, 0000, 0000, where 3 0000 represent 3 narrow bands not measured in the time window.
  • the narrowband CQI may be a CQI on a narrowband corresponding to one subframe, or may be a narrowband CQI corresponding to multiple subframes, and in each of the multiple subframes, the UE receives the downlink.
  • the narrow band of the signal contains a portion of the narrow band corresponding to the narrow band index.
  • the CQI is composed only of the narrow-band CQI corresponding to the frequency domain CSI reference resource, and the CQI sequence in the CQI is preset, for example, in the order from the lowest frequency to the highest. For example, if only three narrowbands are used in the CSI reference resource, only the three narrowband CQIs are reported.
  • the narrowband CQIs are arranged in a preset order; optionally, the preset order may be, for example, an order of increasing or decreasing in time.
  • the narrowbands on all the time domain CSI reference resources may have no overlap or overlap.
  • the CQI is composed of CQIs of subframes #4 to #8, wherein the narrowband of subframe 6 and subframe 7 is There are overlaps.
  • a CQI of a bandwidth (which may be a narrowband or an aggregated narrowband as described in the example ae, such as a first bandwidth or a second bandwidth, etc.) may be a CQI value, such as a CQI reflecting the channel quality of the first codeword. It can also be multiple CQI values, such as channel quality that reflects two codewords, respectively.
  • the CQI value may be an absolute value or a relative value, such as an offset value relative to a wideband CQI, and the wideband CQI may be an average value of CQIs in a period of time.
  • the broadband CQI is reported before this report.
  • the CQI value may also be composed of an absolute value and a relative value, such as an absolute value of a wideband CQI and a relative value of a plurality of narrowband CQIs relative to a wideband CQI, where the wideband CQI may be for a period of time.
  • the relative value is the absolute value of the channel quality relative to the first codeword.
  • the channel quality of the above two codewords is taken as an example.
  • the first method the case where the CQI value is an absolute value, for example, includes two absolute CQI values reflecting the channel quality of two codewords (CQI with a CQI value of 4 bits) Index value);
  • mode 2 the case where the CQI value is an absolute value and a relative value, for example, including an absolute CQI value reflecting the channel quality of the first codeword, and a relative CQI value reflecting the channel quality of the second codeword.
  • the relative CQI value is an offset that reflects an absolute CQI value of a channel quality of the first codeword.
  • the third mode the case where the CQI value is a relative value, for example, including a channel quality that reflects the first codeword.
  • the CSI-RS may be an existing CSI-RS or a CSI-RS that is truncated within a narrow band, the bandwidth of the truncated CSI-RS not exceeding a narrow band.
  • the channel for reporting the CSI may be a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel).
  • the PUSCH resource may be scheduled by an eNB or may be preset.
  • an embodiment of the present invention further provides a terminal, including: a processor and a communication unit, where the processor is configured to determine a CSI reference resource, where the CSI reference resource is one or more subframes in a time domain, One or more narrowbands in the frequency domain; the communication unit is configured to report CSI on the CSI reference resource.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement a method for reporting CSI by the UE.
  • an embodiment of the present invention further provides a computer readable storage medium, where a computer can be stored. Executing an instruction, when the computer executable instruction is executed, implementing the method for triggering a UE to report CSI.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • the invention is not limited to any specific form of combination of hardware and software.
  • the embodiments of the present invention provide a method and a device for reporting a CSI by a UE and triggering a CSI to be reported by the UE.
  • the UE may report the CSI of the narrowband, and is particularly applicable to the user equipment with limited receiving capability.
  • the UE solves the problem that the MTC UE cannot report the CSI by measuring the narrowband in one or more subframes, and has a good effect on supporting the MTC UE with a small RF bandwidth.

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Abstract

一种UE上报CSI的方法,包括:UE确定CSI参考资源,上报所述CSI参考资源上的CSI,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带。一种触发UE上报CSI的方法,包括:网络侧向UE发送以下内容:参考信号、周期上报的相关资源信息和/或触发上报的相关资源信息。通过上述方法,UE可以上报窄带的CSI,特别适用于接收能力有限的UE。

Description

UE上报CSI及触发UE上报CSI的方法和装置 技术领域
本申请涉及但不限于无线通信领域,尤其涉及一种用户设备(User Equipment,简称UE)上报信道状态信息(Channel State Information,简称CSI)以及触发UE上报CSI的方法和装置。
背景技术
机器类型通信(Machine Type Communication,简称为MTC)用户设备(或称为终端)(User Equipment,简称UE),又称,机器到机器(Machine to Machine,简称M2M)用户通信设备,是目前物联网的主要应用形式。
近年来,由于长期演进(Long-Term Evolution,简称为LTE)/高级长期演进系统(Long-Term Evolution Advance,简称为LTE-Advance或LTE-A)的频谱效率高,越来越多的移动运营商选择LTE/LTE-A作为宽带无线通信系统的演进方向。基于LTE/LTE-A的MTC多种类数据业务也将更具吸引力。
MTC设备通常是低成本的设备,具有支持的RF(Radio Frequency,射频)带宽比较小、单接收天线等特征,其RF发送和接收带宽一般为1.4MHz。MTC UE在一个子帧最多只能接收6个连续PRB(Physical Resource Block,物理资源块)内的信号。
在现有的CSI上报方式中,需要在上报子帧上上报一个子帧上的全带宽的平均CSI或者UE选择的/高层配置的子带的CSI,所述CSI包括以下至少一个:CQI(Channel Quality Indicator,信道质量指示符)、PMI(Precoding Matrix Indicator,预编码矩阵指示)、PTI(Precoding Type Indicator,预编码类型指示)、RI(Rank Indication,秩指示)。由于MTC UE的接收能力受限,在一个子帧内不能得到超过连续6个PRB的CSI,因此,现有技术中的CSI上报的方式对于MTC UE来说已经不再适用,需要为MTC UE定义新的CSI上报的方式。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种UE上报CSI的方法和装置,UE能够上报窄带资源的CSI。
本发明实施例提供了一种UE上报CSI的方法,包括:
UE确定CSI参考资源,上报所述CSI参考资源上的CSI,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带。
本发明实施例还提供了一种上报CSI的装置,所述装置位于UE,所述装置包括CSI参考资源确定模块和上报模块,其中:
所述CSI参考资源确定模块设置为确定CSI参考资源,其中,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;
所述上报模块设置为上报所述CSI参考资源上的CSI。
本发明实施例还提供了一种触发UE上报CSI的方法和装置,能够使UE上报窄带资源的CSI。
本发明实施例提供了一种触发UE上报CSI的方法,包括:
网络侧向UE发送以下内容:参考信号、周期上报的相关资源信息和/或触发上报的相关资源信息。
本发明实施例还提供了一种触发UE上报CSI的装置,包括:
第一发送模块设置为向UE发送参考信号;
第二发送模块设置为向UE发送以下内容:周期上报的相关资源信息和/或触发上报的相关资源信息。
此外,本发明实施例还提供一种UE,包括:处理器以及通信单元,所述处理器设置为确定CSI参考资源,其中,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;所述通信单元设置为上报所述CSI参考资源上的CSI。
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可 执行指令,所述计算机可执行指令被执行时实现所述UE上报CSI的方法。
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现所述触发UE上报CSI的方法。
采用本发明实施例的方法,UE可以上报窄带的CSI,特别适用于接收能力有限的用户设备。
本申请的其它特征和优点将在随后的说明书中阐述,并且,部分地从说明书中变得显而易见,或者通过实施本申请而了解。本申请的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
附图用来提供对本申请技术方案的进一步理解,并且构成说明书的一部分,与本申请的实施例一起用于解释本申请的技术方案,并不构成对本申请技术方案的限制。
图1为本发明实施例一的流程图;
图2为本发明实施例三的装置结构示意图;
图3为本发明实施例四的装置结构示意图;
图4为应用示例一中的示例图;
图5为应用示例二中的示例图;
图6为应用示例四中的示例图;
图7为应用示例十中的一个示例图;
图8为应用示例十中的另一个示例图。
本发明的实施方式
下文中将结合附图对本发明实施例进行详细说明。需要说明的是,本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。
在本文中,UE包括不能接收全带宽上的信号的UE,该UE接收下行信号的带宽为本文中所述窄带。所述不能接收全带宽包括但不限于以下情况:具有接收全带宽的能力但能力受限不能接收、不具有接收全带宽的能力。
实施例一
本实施例描述了一种UE上报CSI的方法,在本实施例中,UE按照预设的周期上报CSI,UE上报CSI的周期也可以是网络侧配置的,如图1所示,上述方法包括以下步骤:
步骤110:UE确定CSI参考资源,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;
所述CSI参考资源可以是以下之一:
a1、所述CSI参考资源在时域上为一个下行子帧,所述下行子帧为预设子帧之前的子帧,所述CSI参考资源在频域上为所述下行子帧对应的窄带;
a2、所述CSI参考资源在频域上为一个预先指定的窄带,在时域上为所述预先指定的窄带对应的一个或多个下行子帧,所述下行子帧为预设子帧之前的子帧;
a3、所述CSI参考资源在频域上为与前K次上报的CSI对应的窄带不同的窄带,其中,K为正整数,且K<N,N为需要测量的窄带总数目,在时域上为所述窄带对应的一个或多个下行子帧,所述下行子帧为预设子帧之前的子帧;
a4、所述CSI参考资源在时域上为一个时间窗内的一个或多个下行子帧,在频域上为所述下行子帧对应的窄带。
本文所述预设子帧之前的子帧包含预设子帧本身。
本文中,将一个子帧上UE接收下行信号的窄带称为该子帧对应的窄带,将时域CSI参考资源上UE接收下行信号的窄带称为该CSI参考资源对应的窄带。UE上报CSI参考资源上的CSI,该CSI参考资源也可称为上报的CSI 对应的CSI参考资源。
在上述a1和a4中,下行子帧对应的窄带可以是预设的窄带也可以是配置的窄带,也就是说,每次进行测量的窄带是预先确定的、固定的窄带。例如,如果网络侧配置一个窄带,则UE在该窄带上接收下行信号;如果网络侧配置了多个窄带,则UE可以从中选择一个窄带,在该窄带上接收下行信号。
上述a4中,时间窗可选在预设子帧之前。在一个可选实施例中,时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带,UE在时间窗内部分或所有下行子帧对应的窄带上接收下行信号。所述预设是指预先设置好的,所述配置是指由网络侧下发的。
*可选地,所述CSI参考资源在时域上为UE接收控制信息和/或下行数据的子帧,所述接收控制信息和/或下行数据的子帧对应的窄带在一段时间内遍历所有的可用窄带。下行信号所在的窄带遍历所有可用窄带通过网络侧配置实现,即在一段时间内,网络侧配置每次下发下行信号的窄带不同,直到所有可用窄带都被配置过发送下行信号。所述可用窄带可以是将系统带宽预先划分的窄带,也可以是eNB(evolved Node B,基站)配置的窄带,比如在SIB(System Information Block,系统信息块)或者RRC(Radio Resource Control,无线资源控制)信令中通知的窄带。
*可选地,所述CSI参考资源在时域上还可以为测量子帧集中的子帧,所述CSI参考资源在频域上为预设的或者eNB通知的第一窄带,所述UE在所述测量子帧集中的子帧上、在所述第一窄带上接收下行信号。在一个可选实施例中,如果在测量子帧集中的子帧上接收控制信号和/或下行数据的窄带与所述第一窄带不重合,则UE放弃接收控制信号和/或数据信号,只在测量子帧集中的子帧上、在第一窄带上接收下行信号。
*可选地,所述CSI参考资源在时域上的子帧为有效下行子帧,所述有效下行子帧满足以下条件至少之一:
所述子帧为一个下行子帧;
除了在传输模式9或传输模式10下,所述子帧不是一个多播广播单频网 (MBSFN,Multicast Broadcast Single Frequency Network)子帧;
所述子帧不包含长度小于或等于7680·Ts的下行导频时隙(DwPTS,Downlink Pilot Time Slot)域;其中,Ts为时间单位,如,Ts=1/(15000×2048)秒;
所述子帧不在配置的测量间隔之内;
如果UE被配置了CSI子帧集,所述子帧应为所述CSI子帧集中的子帧。
*在一个可选实施例中,所述时域CSI参考资源为预设子帧之前的子帧中离上报子帧最近的一个或者多个下行子帧。可选地,该下行子帧为如前所述的有效下行子帧。
*所述CSI参考资源在时域上的一个或者多个子帧中的一个子帧上的CSI-RS(CSI-Reference Signal,CSI参考信号)在频域上不超过所述子帧对应的带宽。
步骤120:UE上报所述CSI参考资源上的CSI。
*UE上报的CSI内容除了CQI还可以包括以下信息中的至少一种:所述CSI参考资源上的预编码矩阵指示(PMI)、所述CSI参考资源上的预编码类型指示(PTI)、所述CSI参考资源上的秩指示(RI)。UE上报的CSI中的CQI可以为绝对值和/或相对值,具体包括以下之一:
b1、上报所述CSI参考资源上的信道质量指示(CQI);
b2、上报窄带索引和所述窄带索引对应的窄带的CQI,所述窄带索引对应的窄带的CQI包括以下至少之一:第一带宽上的CQI、所述窄带索引对应的每个窄带的CQI;其中,所述第一带宽由所述窄带索引对应的所有窄带组成;
b3、上报子帧索引和所述子帧索引对应的窄带的CQI,所述子帧索引对应的窄带的CQI包括以下至少之一:第二带宽上的CQI、所述子帧索引对应的每个窄带的CQI;其中,所述第二带宽由所述子帧索引对应的所有窄带组成;
b4、上报频域上按照预设的顺序排列的窄带的CQI;
b5、上报所述CSI参考资源包含的每个子帧对应的窄带的CQI,所述窄带的CQI按照预设的顺序排列。
*可选地,UE通过PUCCH(Physical Uplink Control Channel,物理上行控制信道)或者PUSCH(Physical Uplink Shared Channel,物理上行共享信道)上报所述CSI。上述PUSCH资源是预设的。
实施例二
本实施例描述了一种UE上报CSI的方法,在本实施例中,UE在接收到触发CSI上报的信息之后上报CSI。所述触发CSI上报的信息可以包含在下行控制信息(DCI,Downlink Control Information)中或者随机接入响应(RAR,Random Access Response)中。所述DCI为调度物理上行共享信道(PUSCH)的DCI或者调度物理下行共享信道(PDSCH,Physical Downlink Shared Channel)的DCI或者专用DCI。所述RAR为非竞争接入时的RAR或者竞争接入时的RAR。
本实施例提供的UE上报CSI的方法,包括以下步骤:
步骤210:UE确定CSI参考资源,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;
所述CSI参考资源可以是以下资源之一:
c1、所述CSI参考资源在时域上为接收所述DCI的下行子帧,在频域上为所述下行子帧对应的窄带;
c2、所述CSI参考资源在时域上为所述DCI调度的PDSCH所在的下行子帧,在频域上为所述下行子帧对应的窄带;
c3、所述CSI参考资源在时域上为一个时间窗内的一个或者多个下行子帧,在频域上为所述下行子帧对应的窄带;
c4、所述CSI参考资源包括所述DCI或者RAR中指示的资源。
在c3中,下行子帧对应的窄带可以是预设的窄带也可以是配置的窄带。在一个可选实施例中,时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带,UE在时间窗内部分或所有下行子帧对应的窄带上接收下行信号。
步骤220:UE上报所述CSI参考资源上的CSI。
UE上报所述CSI的子帧为以下之一:
d1、第一DCI或RAR调度的发送PUSCH的子帧,所述第一DCI为包含触发CSI上报的信息的DCI,所述UE根据所述触发CSI上报的信息上报所述CSI;
d2、第二DCI调度的发送PUSCH的子帧,所述第二DCI的上一个DCI为包含触发CSI上报的信息的DCI,所述UE根据所述触发CSI上报的信息上报所述CSI;
d3、第n+k子帧,其中,n为包含所述触发CSI上报的信息的DCI或RAR所在的子帧,k为一个大于0且不小于预设值的正整数。
实施例一中“*”标识的特征也适用于实施例二。
实施例三
本实施例描述一种上报CSI的装置,所述装置位于UE,如图2所示,所述装置包括CSI参考资源确定模块和上报模块,其中:
所述CSI参考资源确定模块设置为确定CSI参考资源,其中,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;
所述上报模块设置为上报所述CSI参考资源上的CSI。
在一个可选实施例中,所述上报模块是设置为:周期上报所述CSI参考资源上的CSI;或者,在接收到触发CSI上报的信息之后上报所述CSI参考资源上的CSI。
在一个可选实施例中,所述触发CSI上报的信息包含在DCI中或者RAR中。可选地,所述DCI为:调度物理上行共享信道(PUSCH)的DCI或者调度物理下行共享信道(PDSCH)的DCI或者专用DCI。
在一个可选实施例中,当所述上报模块是设置为周期上报所述CSI参考资源上的CSI时,所述CSI参考资源确定模块确定的CSI参考资源参见实施例一。
在一个可选实施例中,当所述上报模块是设置为在接收到触发CSI上报 的信息之后上报所述CSI参考资源上的CSI时,所述触发CSI上报的信息包含在下行控制信息(DCI)或者随机接入响应(RAR)中,所述CSI参考资源确定模块确定CSI参考资源,以及此时上报模块在哪些子帧上上报该CSI参考资源上的CSI参见实施例二。
上报模块上报的内容参见实施例一中描述。
在一个可选实施例中,所述CSI参考资源确定模块还设置为确定所述CSI参考资源在时域上为UE接收控制信息和/或下行数据的子帧,或者为测量子帧集中的子帧。具体参见实施例一中描述。
在一个可选实施例中,所述CSI参考资源确定模块确定的所述CSI参考资源在时域上的子帧为有效下行子帧,所述有效下行子帧满足的条件参见实施例一中所述。
在一个可选实施例中,所述CSI参考资源确定模块确定的所述时域CSI参考资源为预设子帧之前的子帧中离上报子帧最近的一个或者多个下行子帧。
在一个可选实施例中,所述CSI参考资源确定模块确定的所述CSI参考资源在时域上的一个或者多个子帧中的一个子帧上的CSI参考信号(CSI-RS)在频域上不超过所述子帧对应的带宽。
本实施例装置为实现上述实施例一方法和实施例二方法的装置,其它实现细节参照上文实施例一和实施例二中的描述。
实施例四
于本实施例中,网络侧采用以下方式触发UE上报CSI:
网络侧向UE发送以下内容:参考信号、周期上报的相关资源信息和/或触发上报的相关资源信息。
所述参考信号用于进行信道测量,包括CRS(Cell Reference Signal,小区参考信号)和/或CSI-RS(CSI参考信号)。可选地,所述CSI-RS的带宽在频域上不超过发送给UE下行信号所在的窄带的带宽。
上述周期上报的相关资源信息包括以下信息至少之一:
上报周期和/或子帧偏移;该上述周期和/或子帧偏移也可以是预设的;
上报CSI使用的资源;例如UE通过PUCCH上报CSI,则网络侧发送的上报资源为PUCCH资源,如果UE通过PUSCH上报CSI,则上报的资源即为PUSCH资源;
时间窗信息;该时间窗信息也可能是预设的;
测量子帧集;测量子帧集中的子帧上网络侧在固定的窄带发送下行信号;
频域CSI参考资源;如实施例一中a1或a4中下行子帧对应的窄带,实施例二中c3中下行子帧对应的窄带;
可用窄带。
上述触发上报的相关资源信息包括以下信息至少之一:
触发CSI上报的信息;
上报CSI使用的资源;例如为PUCCH资源或者PUSCH资源;
时间窗信息;
测量子帧集;
时域CSI参考资源;
频域CSI参考资源。
可选地,所述触发上报的相关资源信息包含在下行控制信息(DCI)或者随机接入响应(RAR)中。所述DCI为:调度PUSCH的DCI或者调度PDSCH的DCI或者专用DCI。可选地,所述PUSCH资源是预设的。所述RAR可以为非竞争接入时的RAR或者为竞争接入时的RAR。
实现上述方法的触发UE上报CSI的装置如图3所示,包括第一发送模块和第二发送模块:
第一发送模块设置为向UE发送参考信号;
第二发送模块设置为向UE发送以下内容:周期上报的相关资源信息和/或触发上报的相关资源信息。
可选地,所述参考信号包括CRS和/或CSI参考信号CSI-RS。可选地,该CSI-RS的带宽在频域上不超过发送给UE下行信号所在的窄带的带宽。
可选地,第二发送模块是设置为:将所述触发上报的相关资源信息包含在DCI或者RAR中发送。
其它实现细节参照上文中的描述。
在现有的方式中,CSI参考资源在时域上是一个子帧,频域上由eNB配置的上报模式确定,比如上报全带宽上的CQI,或者上报选择的一个或者多个子带或者全部子带的CQI,所述子带为eNB划分好的子带,子带的大小与系统带宽有关,对于上报多个但非上报全部子带上的CQI的情况,上报的个数也是由系统带宽确定的。对于MTC UE来说,其接收能力有限,宽带CQI在一个子帧上是无法获得的,对于子带的CQI,UE无法测量多个子带并选出一个或者多个最好的子带,对于20MHz的系统带宽,子带大小为8个PRB,MTC UE连一个子带都无法接收。采用本发明实施例的方法,UE通过在一个或多个子帧上对窄带进行测量,解决了MTC UE无法上报CSI的问题,对于支持RF带宽较小的MTC UE具有较好的效果。但本发明实施例方法并不限于MTC UE适用,其他UE也可以参照本发明实施例方法上报CSI。
下面通过若干应用示例对上述实施例方法进行具体说明。以下示例中,示例一至四为UE按照预设周期上报CSI的示例,区别在于CSI参考资源不同;示例五至九为UE根据触发信息上报CSI的示例,区别在于CSI参考资源以及上报方式不同;示例十为UE上报的CSI所包含的内容。上述示例可以互相组合,例如,示例十可以与其他示例组合。上述示例中的特征也可以互相组合。例如,示例一中的“时域CSI参考资源为有效下行子帧”以及有效子帧的定义对于其他示例也适用。再例如,上报内容除了包括所述CSI参考资源上的CQI,可选地还可以包括以下内容至少之一:CSI参考资源上的PMI、RI、PTI,对于其他示例也适用。再例如,上述示例中均可以配置测量子帧集。还有其他组合的情况,此处不再一一说明,本领域技术人员根据本申请思想以及现有技术中的内容,应当可以知晓。
应用示例一
在本示例中,UE周期上报CSI。CSI的发送周期和子帧偏移可以是预设的,也可以是eNB(Evolved NodeB,演进节点B)通知的。
UE确定CSI参考资源,在CSI参考资源上进行CSI测量,按照上述发送周期和子帧偏移确定在子帧n上上报所述CSI参考资源上的CSI(包括CQI,可选地还可以包括以下至少之一:PMI、PTI、RI)。
CSI参考资源包括时域资源(或称为时域CSI参考资源)和频域资源(或称为频域CSI参考资源)。在本例中,CSI参考资源在时域上为一个下行子帧,该下行子帧为预设子帧之前的子帧,频域上为所述时域CSI参考资源对应的窄带。上述预设子帧为n-k子帧,其中,n为UE进行CSI上报的子帧,k是一个预设值,比如为不小于4的整数,可选地,k=4,那么预设子帧之前的子帧包括:n-4、n-5、n-6……。所述时域CSI参考资源对应的窄带为UE在所述预设下行子帧上接收下行信号的窄带。
在一个可选示例中,上述时域CSI参考资源可以是接收下行控制信息和/或下行数据信息的子帧,在所述子帧上,频域CSI参考资源为下行控制信息和/或下行数据信息所在的窄带。所述窄带可以是预设的,例如,预设UE接收下行控制信息的窄带为连续M个PRB形成的窄带,其中,M为UE支持的连续PRB的最大数目,可选M=6。所述窄带还可以是按照预设的规则得到的,例如,在时域CSI参考资源对应的子帧上,UE只接收PRB#5、#7上的PDSCH,此时预设UE的频域CSI参考资源为从起始PRB开始的M个PRB形成的窄带,即PRB#5~#10,在实际应用中不限于这样的方式,只要为包含PDSCH所在PRB的窄带即可。
本示例中,频域CSI参考资源(即上述时域上的下行子帧对应的窄带)可以为预设的或配置的窄带,UE在该预设的或配置的窄带上接收下行信号。在图4中,UE在CQI上报子帧上报的CQI为图4中预设窄带的CQI。如图4所示,预设窄带在全带宽跳频。
在一个可选示例中,所述接收控制信息和/或数据信息所在的窄带在一段时间内遍历所有可用窄带。遍历所有可用窄带是指:在一段时间内每次接收下行信号时使用可用窄带,直到所有可用窄带用完。所述可用窄带可以是将系统带宽预先划分的窄带,也可以是eNB配置的窄带,比如在SIB或者RRC 信令中通知的窄带。
在一个可选示例中,所述时域CSI参考资源为预设子帧之前的子帧中离上报子帧最近的一个或多个下行子帧。比如:上报子帧为n,预设子帧之前的子帧包括n-4、n-5、n-6,那么所述时域CSI参考资源为子帧#n-4。
在一个可选示例中,所述时域CSI参考资源为有效下行子帧,所述有效下行子帧是指至少满足下述条件之一的子帧:
1)所述子帧为一个下行子帧;
2)除了在传输模式9或者10下,所述子帧不是一个MBSFN(多播广播单频网)子帧;
3)所述子帧不包含长度小于或等于7680·Ts的DwPTS(下行导频时隙)域;其中,Ts为时间单位,如,Ts=1/(15000×2048)秒;
4)所述子帧不在配置的测量间隔(measurement gap)之内;
5)如果UE被配置了CSI子帧集(由高层配置),所述子帧应为该CSI子帧集中的子帧。
例如,假设上报子帧为n,预设子帧之前的子帧包括n-4、n-5、n-6,离上报子帧最近的有效下行子帧为n-6,那么所述时域CSI参考资源为子帧#n-6。
在一个可选示例中,UE上报的CSI对应的CSI参考资源在时域上是测量子帧集中的子帧(测量子帧)。所述测量子帧集是预定义的或者eNB通知的,测量子帧集中的子帧可以是连续的也可以是不连续的,在测量子帧集中的子帧上,UE按照预设的图样在预设或者eNB通知的窄带上接收下行信号(包括控制信息和/或数据信息)。所述窄带可以在时间上遍历整个系统带宽或者配置的窄带。
可选地,UE还可以从预设子帧之前的测量子帧集中选择离上报子帧最近的一个下行子帧作为时域CSI参考资源。
在一个可选示例中,测量子帧上的预设窄带为每种系统带宽预先划分的窄带,或者为eNB配置的窄带,比如在SIB中或者RRC信令中通知的窄带。例如,eNB在SIB中通知UE可用的4个窄带,分别为窄带#0、#1、#2、#3。可选地,测量子帧集中的子帧可以是某些固定子帧,如eNB通知UE测量子 帧集为每个帧上的子帧#0,测量的窄带索引为nframe mod N,其中,“mod”表示取模运算,nframe为帧号,N为总的窄带数,比如对于20MHz的系统,N=17。eNB通知给不同UE的测量子帧集以及测量子帧集上的接收窄带可以是不同的。
在一个可选示例中,在测量子帧集中的子帧上,如果UE接收控制信号和/或数据信号的窄带与预设或者通知的窄带不重合,则放弃接收控制信号和/或数据信号。比如,子帧#1是测量子帧,测量子帧上的预设窄带为窄带#5,而在子帧#1之前,eNB调度UE在子帧#1上接收窄带#1上的PDSCH,那么在子帧#1,UE接收窄带#5的下行信号,而放弃接收窄带#1上的PDSCH。
应用示例二
本示例与示例一的区别在于,UE上报的CSI对应的CSI参考资源在频域上为一个预先指定的窄带,所述指定的窄带为一个窄带集合中的窄带,例如,对于每种系统带宽预定义一个窄带集合,或者eNB为UE配置了一个窄带集合,UE在每个上报子帧上报所述窄带集合中的一个窄带的CSI,每个上报子帧上报的CSI对应的指定窄带是预设的,或者说上报子帧上报的CSI对应的指定窄带是按照预设顺序排列的。比如,所述窄带集合中有4个窄带,窄带的索引分别为0、1、2、3,UE按照0、1、2、3的顺序进行窄带上的CSI上报。
本示例与示例一的区别还在于,UE上报的CSI对应的CSI参考资源在时域上为所述频域CSI参考资源对应的一个或多个子帧,该一个或多个子帧为预设子帧之前的子帧,例如,预设子帧为n-k子帧,其中,k是一个预设值,比如为不小于4的整数,可选地,k=4。在时域CSI参考资源即所述一个或多个子帧上,UE在频域CSI参考资源上接收下行信号。
当频域CSI参考资源即预先指定的窄带,并不是刚好是UE接收下行信号的窄带,即UE在多个子帧上接收下行信号的窄带共同覆盖该预先制定的窄带,则频域CSI参考资源即为该多个子帧。如图5所示,其中,子帧#2为上报CSI的子帧,预设子帧为n-4子帧,即子帧#8,图5中格子区域所示为频域CSI参考资源,UE接收下行信号的窄带如斜线部分所示,其中子帧#5、 #7、#8上UE接收下行信号的窄带覆盖了该格子区域,因此,时域CSI参考资源为子帧#5、#7、#8。此时,UE上报的CQI可以为这几个子帧上的所有窄带的平均CQI,也可以仅为这几个子帧上的窄带中的属于预设窄带的那些PRB上的平均CQI,具体上报内容参见示例十。
UE上报的CSI对应的CSI参考资源在时域上还可以是测量子帧集中的子帧,所述子帧对应的窄带为上述预先指定的窄带,关于测量子帧集的各种应用参见示例一,本示例可以与示例一中与测量子帧集有关的各种应用方式组合。
应用示例三
本示例与示例二的区别在于,UE上报的CSI对应的CSI参考资源在频域上为与前K次上报的CSI对应的窄带不同的窄带,CSI对应的窄带是指CSI对应的CSI参考资源中的窄带,其中,K为正整数,且K<N,N为上述窄带集合中的总窄带数目,可选地,取K=N-1。这种情况下,UE在上报CSI参考资源上的CSI时,还应上报所述窄带对应的窄带索引,以使eNB获取上报的CSI对应的窄带信息。
UE上报的CSI对应的CSI参考资源在时域上可以是接收下行控制信息和/或下行数据信息的子帧,或者也可以是测量子帧集中的子帧。所述测量子帧集是预定义的或者eNB通知的,在测量子帧集中的子帧上,UE在预设的或者通知的窄带上进行接收。在本示例中,基站也可以配置测量子帧集,关于测量子帧集的各种应用参见示例一,本示例可以与示例一中与测量子帧集有关的各种应用方式组合。
如果时域CSI参考资源为接收下行控制信息和/或下行数据信息的子帧,可选地,设置离上报子帧最近的接收下行信号的子帧为时域CSI参考资源。
应用示例四
本示例与示例一的区别在于,时域CSI参考资源为一个时间窗内的一个或者多个下行子帧,频域CSI参考资源为所述时域CSI参考资源对应的子帧 上的UE接收下行信号的窄带,即时域CSI参考资源的下行子帧所对应的窄带。
所述时间窗的大小是预设的或者是eNB通知的,比如为eNB通知的5ms或10ms。时间窗的起始或者截至位置也可以是预设的,可选地,所述时间窗为预设子帧之前的若干个子帧(预设子帧的定义同示例一),比如5个子帧,如图6所示,时间窗为子帧#4到#8。
可选地,该时域CSI参考资源的下行子帧所对应的窄带可以是预设的也可以是网络侧配置的。
可选地,时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带,UE在时间窗内部分或所有下行子帧对应的窄带上接收下行信号。
可选地,UE在所述时间窗内在固定的窄带接收下行信号。
在本示例中,基站也可以配置测量子帧集,关于测量子帧集的各种应用参见示例一,本示例可以与示例一中与测量子帧集有关的各种应用方式组合。
应用示例五
本示例中,UE在接收到触发CSI上报的信息之后上报所述CSI参考资源上的CSI。UE接收eNB发送的CSI上报请求信息,所述CSI上报请求信息包含在DCI或者RAR中,UE在指定子帧进行CSI上报。
上述RAR可以是非竞争接入的RAR,也可以是竞争接入的RAR。
UE的CSI上报方式包括:
UE在n子帧接收触发CSI上报的DCI,在本示例中,所述DCI为调度PUSCH的DCI,UE接收到所述DCI后,在n+k子帧在调度的PUSCH上报CQI。可选地,上报CSI的子帧为与DCI所在子帧最近的一个能够上报的子帧。在LTE FDD(Frequency Division Dual,频分双工)系统中,k=4。时域CSI参考资源为子帧#n,频域参考资源为子帧#n对应的窄带。
应用示例六
在本示例中,UE在n子帧接收触发CSI上报的DCI,所述DCI为调度第一PUSCH的DCI,UE接收到所述DCI后,在发送所述第一PUSCH的子帧并不上报CQI,而是在收到下一个调度第二PUSCH的DCI后,在发送所述第二PUSCH的子帧上报CQI,下一个DCI也可以是包含触发CSI上报信息的DCI。
在本示例中,UE上报CSI的CSI参考资源在时域上为一个时间窗内的全部或者部分子帧,比如所述时间窗为上述两个DCI所在子帧之间的子帧,时域CSI参考资源为时间窗内的一个或者多个子帧或者所有子帧,频域CSI参考资源为所述时域CSI参考资源对应的窄带。时间窗可以为预设的或者是网络侧配置的。
可选地,时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带,UE在时间窗内部分或所有下行子帧对应的窄带上接收下行信号。
可选地,UE在所述时间窗内在预设的窄带接收下行信号。
可选地,本示例中也可以配置测量子帧集,测量子帧集概念及相关特征参见示例一中描述。
在一个可选示例中,所述DCI中还可以包含CSI参考资源信息,即窄带信息和/或子帧信息。例如,所述DCI中包含一个窄带索引和一个子帧索引;或者DCI中包含一个窄带索引和子帧的偏移,UE根据该子帧偏移确定接收和测量的子帧,在该子帧上在所述窄带上接收和测量;或者DCI也可以包含多个窄带索引,以指示UE在之后的几个子帧分别在所述几个窄带上接收和测量;或者DCI也可以包含几个子帧索引。DCI中指示的子帧为时间窗内的子帧。在其他示例中,RAR中也可以包含CSI参考资源信息。DCI或者RAR中包含CSI参考资源信息的应用方式可以与其他应用示例的特征组合。
应用示例七
在本示例中,UE在n子帧接收触发CSI上报的DCI或者RAR,所述DCI为:调度PDSCH接收或者PUSCH发送的DCI,或者为一个专有的DCI。所述RAR可以是非竞争接入的RAR,也可以是竞争接入的RAR。然后,UE 在一个预设的子帧进行CSI的上报,上报子帧和触发CSI上报的子帧之间可以有一个固定的关系,比如触发CSI上报的子帧为n,则上报子帧为n+k,k是不小于一个预设值的数。
CSI参考资源在时域上为一个时间窗内的子帧,该时间窗包含的子帧数不小于1,比如时间窗在触发CSI上报的DCI或者RAR所在子帧到上报子帧这个区间内,该时间窗内的全部子帧或者部分子帧或者一个子帧为时域CSI参考资源,频域参考资源为所述时域参考资源对应的窄带。可选地,所述时间窗为[m,n-k],其中,m为触发CSI上报的子帧,n为上报子帧,k是一个预设值,为不小于4的整数。可选地,时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带,UE在时间窗内部分或所有下行子帧对应的窄带上接收下行信号。
可选地,所述时域CSI参考资源可以是接收下行控制信息和/或下行数据信息的子帧,或者是测量子帧集中的子帧。所述测量子帧集可以定义为触发CSI上报的DCI或者RAR所在子帧之后(包括DCI或RAR所在子帧)的K个子帧,在测量子帧集对应的子帧上,UE在预设或者通知的窄带上进行接收。关于测量子帧集的各种应用参见示例一,本示例可以与示例一中与测量子帧集有关的各种应用方式组合。
所述时域CSI参考资源为所述时间窗内的有效下行子帧,所述有效下行子帧的定义如示例一所述。
UE上报CSI的信道可以是PUCCH,当在上报子帧恰好有PUSCH需要发送时,也可以是PUSCH,或者也可以规定在PUSCH传输CSI。如果使用PUSCH传输CSI,该PUSCH资源可以是预设的或者是通知的。
应用示例八
UE在n子帧接收触发CSI上报的DCI,所述DCI为调度UE在n+k子帧接收PDSCH的DCI,其中,k为不小于1的数,可选地,k=1。在本示例中,CSI参考资源在时域上为n+k子帧,频域上为接收PDSCH的窄带。UE经过测量之后,在一个预设的子帧进行CSI的上报,上报子帧和触发CSI上报的 子帧之间可以有一个固定的关系,比如触发CSI上报的子帧为n,上报子帧为n+m,m是不小于一个预设值的数。
UE上报CSI的信道可以是PUCCH,当在上报子帧恰好有PUSCH需要发送时,也可以是PUSCH,或者也可以规定在PUSCH传输CSI。如果使用PUSCH传输CSI,该PUSCH资源可以是预设的或者是通知的。
在本示例中,基站也可以配置测量子帧集,关于测量子帧集的各种应用参见示例一,本示例可以与示例一中与测量子帧集有关的各种应用方式组合。
应用示例九
UE在n子帧接收触发CSI上报的RAR,所述RAR中包含一个上行调度授权,调度UE在n+k子帧发送消息3,UE上报的CSI包含在消息3中。所述k为一个预设值,比如k=6。时域CSI参考资源为一个预设子帧,比如子帧#n+k-4,频域参考资源为一个预设的窄带。RAR还可以包含CSI参考资源。
可选地,所述时域CSI参考资源可以是接收下行控制信息和/或下行数据信息的子帧,或者是测量子帧集中的子帧。所述测量子帧集可以定义为触发CSI上报的DCI或者RAR所在子帧以及之后的K个子帧,在测量子帧集对应的子帧上,UE在预设或者通知的窄带上进行接收。关于测量子帧集的各种应用参见示例一,本示例可以与示例一中与测量子帧集有关的各种应用方式组合。
UE上报的信道为PUCCH,当上报子帧恰好有PUSCH发送,则也可以和PUSCH一起发送,或者仍在PUCCH上发送。
应用示例十
本示例描述UE上报的CSI包括以下内容之一:
a)上报所有CSI参考资源上的CQI,可选地,该CQI可以为平均CQI,例如,频域CSI参考资源是4个窄带,则在这四个窄带上计算一个平均的CQI;
b)上报窄带索引和所述窄带索引对应的窄带的CQI,可选地,该窄带索引对应的窄带的CQI包括以下之一:第一带宽上的CQI、所述窄带索引对应 的每个窄带的CQI;其中所述第一带宽由所述窄带索引对应的所有窄带组成;
上报的窄带的数目m可以是预设的或者eNB通知的一个定值,或者1≤m≤M,其中,M是预设的或者是eNB通知的。
系统带宽中的窄带以及索引可以是预定义的或者预设的,比如每种系统带宽都预先划分成若干个窄带,按照从频率最低到最高从零编号为0,1,2,……;或者系统带宽中的窄带是eNB配置的,比如在SIB中或者RRC信令中通知,通知的窄带按照一定的顺序编号为0,1,2,……。所述窄带索引可以由上报的每个窄带的索引组成,比如20MHz的系统带宽一共预先划分了16个窄带,用4个bit的二进制数表示,UE上报的窄带为窄带#5和#6,那么窄带索引为“0101”和“0110”;或者窄带索引也可以由所有上报的窄带的联合索引组成,比如窄带#5和#6用一个唯一的数r表示;或者窄带索引也可以是一个位图(bitmap),所述bitmap的bit数可以和总的窄带数相同。
所述窄带索引对应的窄带的CQI可以是一个子帧对应的窄带上的CQI,也可以是多个子帧对应的窄带的CQI,在所述多个子帧中的每个子帧上,UE接收下行信号的窄带都包含所述窄带索引对应的窄带的一部分。图7和图8中给出了两个例子,系统带宽为10MHz,被划分为8个窄带,最后两个RB(Resource Block,资源块)未被划分到窄带之中。图7中CSI时域参考资源为子帧#4~#8,频域CSI参考资源和系统带宽划分的窄带都是对齐的,需要上报5个窄带的CQI。图8中CSI时域参考资源也为子帧#4~#8,窄带划分和图7相同,但是频域CSI参考资源和系统带宽划分的窄带是不对齐的,对应系统带宽中的3个窄带,需要上报这3个窄带的CQI。
c)上报子帧索引和所述子帧索引对应的窄带的CQI,可选地,该子帧索引对应的窄带的CQI包括以下之一:第二带宽上的CQI、所述子帧索引对应的每个窄带的CQI;其中,所述第二带宽由所述子帧索引对应的所有窄带组成;
上报的子帧的数目k可以是预设的或者eNB通知的一个定值,或者1≤k≤K,其中,K是预设的或者是eNB通知的。所述k个子帧的索引可以由上报的每个子帧的索引组成,也可以是一个与一个十进制数对应的联合索引,也可以是一个bitmap,如果CSI时域参考资源为一个时间窗,则所述bitmap 的bit数可以和时间窗的长度相同。所述CQI可以是k个子帧对应的窄带上的平均CQI,也可以由每个子帧对应的窄带CQI组成。
d)上报频域上按照预设的顺序排列的窄带的CQI,
所述的CQI可以由所有窄带的CQI组成,比如系统带宽中的窄带以及索引可以是预定义的或者预设的,比如每种系统带宽都预先划分成若干个窄带,按照从频率最低到最高从零编号为0、1、2、……,或者为eNB配置的,比如在SIB中或者RRC信令中通知,通知的窄带按照一定的顺序编号为0、1、2、……。如果UE有未测量的窄带,则在按照频域窄带顺序上报CQI时,采用一个预设的值来代表未测量的窄带的CQI,例如采用CQI索引为0来表示,例如,时间窗内子帧共对应5个窄带,但UE的频域CSI参考资源只有2个,即UE只测量了2个窄带的CQI,则在按照顺序上报窄带CQI时,上报的内容例如可以是,CQI1、CQI2,0000、0000、0000,其中3个0000表示时间窗内未测量的3个窄带。与(b)中类似,窄带的CQI可以是一个子帧对应的窄带上的CQI,也可以是多个子帧对应的窄带的CQI,在所述多个子帧中的每个子帧上,UE接收下行信号的窄带都包含所述窄带索引对应的窄带的一部分。
或者,所述的CQI仅由频域CSI参考资源对应的窄带的CQI组成,CQI中的CQI的排列顺序是预设的,比如按照从频率最低到最高的顺序。比如CSI参考资源中只对应3个窄带,那么就只上报这3个窄带的CQI。
e)上报所述CSI参考资源包含的每个子帧对应的窄带的CQI,所述窄带的CQI按照预设的顺序排列;可选地,预设的顺序例如可以是时间上递增或者递减的顺序。
所述所有时域CSI参考资源上的窄带之间可以没有重叠,也可以有重叠,如图8所示,CQI由子帧#4~#8的CQI组成,其中子帧6和子帧7的窄带是有重叠的。
一个带宽(可以是本示例a-e中所述的一个窄带或者是聚合的窄带如第一带宽或第二带宽等)的CQI可以是一个CQI值,比如是反映第一个码字的信道质量的CQI,也可以是多个CQI值,比如分别反映两个码字的信道质量。
在上述的上报方式中,所述的CQI值可以是绝对值,也可以是相对值,比如为相对于一个宽带CQI的偏移值,所述宽带CQI可以为一段时间内的CQI的平均值,这种情况下,所述宽带CQI在此次上报之前进行了上报。所述的CQI值也可以是由绝对值和相对值组成,比如由一个宽带CQI的绝对值和若干个相对于宽带CQI的窄带CQI的相对值组成,这里所述宽带CQI可以为一段时间内的CQI的平均值,或者为上述上报的窄带的CQI的平均值,或者也可以是一个反映第一个码字的信道质量的绝对值和一个反映第二个码字的信道质量的相对值,该相对值是相对第一个码字的信道质量的绝对值的。
以上报两个码字的信道质量为例,方式一:所述CQI值为绝对值的情况,例如包括反映两个码字的信道质量的两个绝对CQI值(CQI值为4个bit的CQI索引值);方式二:所述CQI值为绝对值和相对值的情况,例如包括反映第一个码字的信道质量的绝对CQI值,和反映第二个码字的信道质量的相对CQI值,所述相对CQI值是相对反映第一个码字的信道质量的绝对CQI值的偏移;方式三:所述CQI值为相对值的情况,例如包括反映第一个码字的信道质量的相对CQI值CQI1,和反映第二个码字的信道质量的相对CQI值CQI2,其中,CQI1和CQI2都是相对于一个宽带的信道质量的绝对CQI值的偏移值。
对于基于CSI-RS的测量的情况,所述CSI-RS可以是现有的CSI-RS,或者是在窄带内截短的CSI-RS,所述截短的CSI-RS的带宽不超过窄带。
上报所述CSI的信道可以是PUCCH(物理上行控制信道),也可以是PUSCH(物理上行共享信道)。可选地,所述PUSCH资源可以是eNB调度的也可以是预设的。
此外,本发明实施例还提供一种终端,包括:处理器以及通信单元,所述处理器设置为确定CSI参考资源,其中,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;所述通信单元设置为上报所述CSI参考资源上的CSI。
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现所述UE上报CSI的方法。
此外,本发明实施例还提供一种计算机可读存储介质,存储有计算机可 执行指令,所述计算机可执行指令被执行时实现所述触发UE上报CSI的方法。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成,所述程序可以存储于计算机可读存储介质中,如只读存储器、磁盘或光盘等。可选地,上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地,上述实施例中的各模块/单元可以采用硬件的形式实现,例如通过集成电路来实现其相应功能,也可以采用软件功能模块的形式实现,例如通过处理器执行存储于存储器中的程序/指令来实现其相应功能。本发明不限制于任何特定形式的硬件和软件的结合。
虽然本发明所揭露的实施方式如上,但所述的内容仅为便于理解本申请而采用的实施方式,并非用以限定本申请。任何本申请所属领域内的技术人员,在不脱离本申请所揭露的精神和范围的前提下,可以在实施的形式及细节上进行任何的修改与变化,但本申请的专利保护范围,仍须以所附的权利要求书所界定的范围为准。
工业实用性
本发明实施例提供一种UE上报CSI及触发UE上报CSI的方法和装置,UE可以上报窄带的CSI,特别适用于接收能力有限的用户设备。UE通过在一个或多个子帧上对窄带进行测量,解决了MTC UE无法上报CSI的问题,对于支持RF带宽较小的MTC UE具有较好的效果。

Claims (84)

  1. 一种用户设备UE上报信道状态信息CSI的方法,包括:
    UE确定CSI参考资源,上报所述CSI参考资源上的CSI,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带。
  2. 根据权利要求1所述的方法,其中,所述上报所述CSI参考资源上的CSI,包括:
    所述UE周期上报所述CSI参考资源上的CSI;或者,
    所述UE在接收到触发CSI上报的信息之后上报所述CSI参考资源上的CSI。
  3. 根据权利要求2所述的方法,其中,所述触发CSI上报的信息包含在下行控制信息DCI中或者随机接入响应RAR中。
  4. 根据权利要求3所述的方法,其中,所述DCI为调度物理上行共享信道PUSCH的DCI或者调度物理下行共享信道PDSCH的DCI或者专用DCI。
  5. 根据权利要求2所述的方法,其中,当所述UE按照预设的周期上报所述CSI参考资源上的CSI时,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带,是指:
    a、所述CSI参考资源在时域上为一个下行子帧,所述下行子帧为预设子帧之前的子帧,所述CSI参考资源在频域上为所述下行子帧对应的窄带;或者,
    b、所述CSI参考资源在频域上为一个预先指定的窄带,在时域上为所述预先指定的窄带对应的一个或多个下行子帧,所述下行子帧为预设子帧之前的子帧;或者,
    c、所述CSI参考资源在频域上为与前K次上报的CSI对应的窄带不同的窄带,其中,K为正整数,且K<N,N为需要测量的窄带总数目,在时域上为所述窄带对应的一个或多个下行子帧,所述下行子帧为预设子帧之前的子帧;或者,
    d、所述CSI参考资源在时域上为一个时间窗内的一个或多个下行子帧, 在频域上为所述下行子帧对应的窄带。
  6. 根据权利要求5所述的方法,其中,所述下行子帧对应的窄带为预设的或配置的窄带。
  7. 根据权利要求2所述的方法,其中,当所述UE在接收到触发CSI上报的信息之后上报所述CSI参考资源上的CSI,所述触发CSI上报的信息包含在下行控制信息DCI或者随机接入响应RAR中;所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带,是指:
    a、所述CSI参考资源在时域上为接收所述DCI的下行子帧,在频域上为所述下行子帧对应的窄带;或者,
    b、所述CSI参考资源在时域上为所述DCI调度的物理下行共享信道PDSCH所在的下行子帧,在频域上为所述下行子帧对应的窄带;或者,
    c、所述CSI参考资源在时域上为一个时间窗内的一个或者多个下行子帧,在频域上为所述下行子帧对应的窄带;或者,
    d、所述CSI参考资源包括所述DCI或者RAR中指示的资源。
  8. 根据权利要求7所述的方法,其中,所述c中,所述下行子帧对应的窄带为预设的或配置的窄带。
  9. 根据权利要求5或7所述的方法,其中,所述时间窗为配置的或预设的。
  10. 根据权利要求5或7所述的方法,其中,所述时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带。
  11. 根据权利要求3或4或7或8所述的方法,其中,
    上报所述CSI的子帧为以下之一:
    第一DCI或RAR调度的发送PUSCH的子帧,所述第一DCI为包含触发CSI上报的信息的DCI,所述UE根据所述触发CSI上报的信息上报所述CSI;
    第二DCI调度的发送PUSCH的子帧,所述第二DCI的上一个DCI为包含触发CSI上报的信息的DCI,所述UE根据所述触发CSI上报的信息上报所述CSI;
    第n+k子帧,其中,n为包含所述触发CSI上报的信息的DCI或RAR所在的子帧,k为一个大于0且不小于预设值的正整数。
  12. 根据权利要求3或4或7或8所述的方法,其中,所述DCI或者RAR还包含所述UE的CSI参考资源信息。
  13. 根据权利要求3所述的方法,其中,所述RAR为非竞争接入时的RAR或者竞争接入时的RAR。
  14. 根据权利要求1-8中任一项所述的方法,其中,所述上报所述CSI参考资源上的CSI,包括:
    上报所述CSI参考资源上的信道质量指示CQI;或者,
    上报窄带索引和所述窄带索引对应的窄带的CQI;或者,
    上报子帧索引和所述子帧索引对应的窄带的CQI;或者,
    上报频域上按照预设的顺序排列的窄带的CQI;或者,
    上报所述CSI参考资源包含的每个子帧对应的窄带的CQI,所述窄带的CQI按照预设的顺序排列。
  15. 根据权利要求14所述的方法,其中,所述窄带索引对应的窄带的CQI,包括以下至少之一:
    第一带宽上的CQI,所述第一带宽由所述窄带索引对应的所有窄带组成;
    所述窄带索引对应的每个窄带的CQI。
  16. 根据权利要求14所述的方法,其中,所述子帧索引对应的窄带的CQI,包括以下至少之一:
    第二带宽上的CQI,所述第二带宽由所述子帧索引对应的所有窄带组成;
    所述子帧索引对应的每个窄带的CQI。
  17. 根据权利要求14所述的方法,其中,所述CQI为绝对值和/或相对值。
  18. 根据权利要求14所述的方法,其中,所述CSI还包括以下信息中的至少一种:
    所述CSI参考资源上的预编码矩阵指示PMI、所述CSI参考资源上的预 编码类型指示PTI、所述CSI参考资源上的秩指示RI。
  19. 根据权利要求1-8中任一项所述的方法,其中,所述CSI参考资源在时域上为一个或者多个子帧,包括:
    所述CSI参考资源在时域上为UE接收控制信息和/或下行数据的子帧,或者为测量子帧集中的子帧。
  20. 根据权利要求19所述的方法,其中,所述CSI参考资源为测量子帧集中的子帧时,所述CSI参考资源在频域上为一个或者多个窄带,包括:
    所述CSI参考资源在频域上为预设的或者基站eNB通知的第一窄带,所述UE在所述测量子帧集中的子帧上、在所述第一窄带上接收下行信号。
  21. 根据权利要求20所述的方法,其中,在测量子帧集中的子帧上如果接收控制信号和/或下行数据的窄带与所述第一窄带不重合,则放弃接收控制信号和/或数据信号。
  22. 根据权利要求19所述的方法,其中,所述CSI参考资源在时域上为UE接收控制信息和/或下行数据的子帧时,所述CSI参考资源在频域上为一个或者多个窄带,包括:
    所述接收控制信息和/或下行数据的子帧对应的窄带在一段时间内遍历所有的可用窄带。
  23. 根据权利要求1-8中任一项所述的方法,其中,所述CSI参考资源在时域上的子帧为有效下行子帧,所述有效下行子帧满足以下条件至少之一:
    所述子帧为一个下行子帧;
    除了在传输模式9或传输模式10下,所述子帧不是一个多播广播单频网MBSFN子帧;
    所述子帧不包含长度小于或等于7680·Ts的下行导频时隙DwPTS域,其中,Ts为时间单位;
    所述子帧不在配置的测量间隔之内;
    如果UE被配置了CSI子帧集,所述子帧应为所述CSI子帧集中的子帧。
  24. 根据权利要求23所述的方法,其中,所述CSI参考资源在时域上为 一个或者多个子帧,包括:
    所述时域CSI参考资源为预设子帧之前的子帧中离上报子帧最近的一个或者多个下行子帧。
  25. 根据权利要求1-8中任一项所述的方法,其中,所述CSI参考资源在时域上为一个或者多个子帧,包括:
    所述时域CSI参考资源为预设子帧之前的子帧中离上报子帧最近的一个或者多个下行子帧。
  26. 根据权利要求1-8中任一项所述的方法,其中,所述CSI参考资源在时域上的一个或者多个子帧中的一个子帧上的CSI参考信号CSI-RS在频域上不超过所述子帧对应的带宽。
  27. 根据权利要求1-8中任一项所述的方法,其中,所述上报所述CSI参考资源上的CSI,还包括:
    通过物理上行控制信道PUCCH或者物理上行共享信道PUSCH上报所述CSI。
  28. 根据权利要求27所述的方法,其中,所述PUSCH资源是预设的。
  29. 根据权利要求19所述的方法,其中,所述测量子帧集是预定义的或者基站eNB通知的。
  30. 根据权利要求19所述的方法,所述方法还包括:
    在测量子帧集中的子帧上,UE在预设或者基站eNB通知的窄带上接收下行信号。
  31. 根据权利要求29所述的方法,所述方法还包括:
    在测量子帧集中的子帧上,UE在预设或者eNB通知的窄带上接收下行信号。
  32. 根据权利要求30或31所述的方法,所述方法还包括:
    在所述测量子帧集中的子帧上,如果UE接收控制信号和/或数据信号的窄带与预设或者eNB通知的窄带不重合,则放弃在所述接收控制信号和/或数据信号的窄带接收所述控制信号和/或数据信号。
  33. 一种触发用户设备UE上报信道状态信息CSI的方法,包括:
    网络侧向UE发送以下内容:参考信号、周期上报的相关资源信息和/或触发上报的相关资源信息。
  34. 根据权利要求33所述的方法,其中,所述参考信号包括小区参考信号CRS和/或CSI参考信号CSI-RS。
  35. 根据权利要求34所述的方法,其中,所述CSI-RS的带宽在频域上不超过发送给UE下行信号所在的窄带的带宽。
  36. 根据权利要求33所述的方法,其中,所述周期上报的相关资源信息包括以下信息至少之一:
    上报周期和/或子帧偏移、上报CSI使用的资源、时间窗信息、测量子帧集、频域CSI参考资源、可用窄带。
  37. 根据权利要求33所述的方法,其中,所述触发上报的相关资源信息包括以下信息至少之一:
    触发CSI上报的信息、上报CSI使用的资源、时间窗信息、测量子帧集、时域CSI参考资源、频域CSI参考资源。
  38. 根据权利要求33所述的方法,其中,所述触发上报的相关资源信息包含在下行控制信息DCI或者随机接入响应RAR中。
  39. 根据权利要求38所述的方法,其中,所述DCI为调度物理上行共享信道PUSCH的DCI或者调度物理下行共享信道PDSCH的DCI或者专用DCI。
  40. 根据权利要求38所述的方法,其中,所述RAR为非竞争接入时的RAR或者竞争接入时的RAR。
  41. 根据权利要求39所述的方法,其中,所述PUSCH的资源是预设的。
  42. 根据权利要求36或37所述的方法,其中,所述测量子帧集是预定义的或者基站eNB通知的。
  43. 一种上报信道状态信息CSI的装置,所述装置位于用户设备UE,所述装置包括CSI参考资源确定模块和上报模块,其中:
    所述CSI参考资源确定模块设置为确定CSI参考资源,其中,所述CSI参考资源在时域上为一个或者多个子帧,在频域上为一个或者多个窄带;
    所述上报模块设置为上报所述CSI参考资源上的CSI。
  44. 根据权利要求43所述的装置,其中,所述上报模块是设置为:
    周期上报所述CSI参考资源上的CSI;或者,
    在接收到触发CSI上报的信息之后上报所述CSI参考资源上的CSI。
  45. 根据权利要求44所述的装置,其中,所述触发CSI上报的信息包含在下行控制信息DCI中或者随机接入响应RAR中。
  46. 根据权利要求45所述的装置,其中,所述DCI为调度物理上行共享信道PUSCH的DCI或者调度物理下行共享信道PDSCH的DCI或者专用DCI。
  47. 根据权利要求44所述的装置,其中,当所述上报模块是设置为周期上报所述CSI参考资源上的CSI时,所述CSI参考资源确定模块是设置为确定CSI参考资源为:
    a、所述CSI参考资源在时域上为一个下行子帧,所述下行子帧为预设子帧之前的子帧,所述CSI参考资源在频域上为所述下行子帧对应的窄带;或者,
    b、所述CSI参考资源在频域上为一个预先指定的窄带,在时域上为所述预先指定的窄带对应的一个或多个下行子帧,所述下行子帧为预设子帧之前的子帧;或者,
    c、所述CSI参考资源在频域上为与前K次上报的CSI对应的窄带不同的窄带,其中,K为正整数,且K<N,N为需要测量的窄带总数目,在时域上为所述窄带对应的一个或多个下行子帧,所述下行子帧为预设子帧之前的子帧;或者,
    d、所述CSI参考资源在时域上为一个时间窗内的一个或多个下行子帧,在频域上为所述下行子帧对应的窄带。
  48. 根据权利要求47所述的装置,其中,所述下行子帧对应的窄带为预设的或配置的窄带。
  49. 根据权利要求44所述的装置,其中,当所述上报模块是设置为在接收到触发CSI上报的信息之后上报所述CSI参考资源上的CSI时,所述触发CSI上报的信息包含在下行控制信息DCI或者随机接入响应RAR中,所述CSI参考资源确定模块是设置为确定CSI参考资源为:
    a、所述CSI参考资源在时域上为接收所述DCI的下行子帧,在频域上为所述下行子帧对应的窄带;或者,
    b、所述CSI参考资源在时域上为所述DCI调度的物理下行共享信道PDSCH所在的下行子帧,在频域上为所述下行子帧对应的窄带;或者,
    c、所述CSI参考资源在时域上为一个时间窗内的一个或者多个下行子帧,在频域上为所述下行子帧对应的窄带;或者,
    d、所述CSI参考资源包括所述DCI或者RAR中指示的资源。
  50. 根据权利要求49所述的装置,其中,所述c中,所述下行子帧对应的窄带为预设的或配置的窄带。
  51. 根据权利要求47或49所述的装置,其中,所述时间窗为配置的或预设的。
  52. 根据权利要求47或49所述的装置,其中,所述时间窗内的部分或所有下行子帧对应的窄带为预设或配置的窄带。
  53. 根据权利要求45或46或49或50所述的装置,其中,所述上报模块是设置为在以下子帧之一上报所述CSI的子帧:
    第一DCI或RAR调度的发送PUSCH的子帧,所述第一DCI为包含触发CSI上报的信息的DCI,所述UE根据所述触发CSI上报的信息上报所述CSI;
    第二DCI调度的发送PUSCH的子帧,所述第二DCI的上一个DCI为包含触发CSI上报的信息的DCI,所述UE根据所述触发CSI上报的信息上报所述CSI;
    第n+k子帧,其中,n为包含所述触发CSI上报的信息的DCI或RAR所在的子帧,k为一个大于0且不小于预设值的正整数。
  54. 根据权利要求45或46或49或50所述的装置,其中,所述DCI或者RAR还包含所述UE的CSI参考资源信息。
  55. 根据权利要求45所述的装置,其中,所述RAR为非竞争接入时的RAR或者竞争接入时的RAR。
  56. 根据权利要求43-50中任一项所述的装置,其中,所述上报模块是设置为上报以下内容:
    上报所述CSI参考资源上的信道质量指示CQI;或者,
    上报窄带索引和所述窄带索引对应的窄带的CQI;或者,
    上报子帧索引和所述子帧索引对应的窄带的CQI;或者,
    上报频域上按照预设的顺序排列的窄带的CQI;或者,
    上报所述CSI参考资源包含的每个子帧对应的窄带的CQI,所述窄带的CQI按照预设的顺序排列。
  57. 根据权利要求56所述的装置,其中,所述窄带索引对应的窄带的CQI包括以下至少之一:
    第一带宽上的CQI,所述第一带宽由所述窄带索引对应的所有窄带组成;
    所述窄带索引对应的每个窄带的CQI。
  58. 根据权利要求56所述的装置,其中,所述子帧索引对应的窄带的CQI包括以下至少之一:
    第二带宽上的CQI,所述第二带宽由所述子帧索引对应的所有窄带组成;
    所述子帧索引对应的每个窄带的CQI。
  59. 根据权利要求56所述的装置,其中,所述CQI为绝对值和/或相对值。
  60. 根据权利要求56所述的装置,其中,所述上报模块是设置为:还上报以下内容:
    所述CSI参考资源上的预编码矩阵指示PMI、所述CSI参考资源上的预编码类型指示PTI、所述CSI参考资源上的秩指示RI。
  61. 根据权利要求43-50中任一项所述的装置,其中,所述CSI参考资源确定模块是设置为确定所述CSI参考资源为:
    所述CSI参考资源在时域上为UE接收控制信息和/或下行数据的子帧, 或者为测量子帧集中的子帧。
  62. 根据权利要求61所述的装置,其中,所述CSI参考资源确定模块是设置为确定所述CSI参考资源在时域上为测量子帧集中的子帧时,所述CSI参考资源确定模块确定的所述CSI参考资源还包括:
    所述CSI参考资源在频域上为预设的或者基站eNB通知的第一窄带、所述UE在所述测量子帧集中的子帧上、在所述第一窄带上接收下行信号。
  63. 根据权利要求62所述的装置,所述装置还包括判断模块,设置为:在判断测量子帧集中的子帧上如果接收控制信号和/或下行数据的窄带与所述第一窄带不重合,则放弃接收控制信号和/或数据信号。
  64. 根据权利要求61所述的装置,其中,所述CSI参考资源确定模块确定的所述CSI参考资源在时域上为UE接收控制信息和/或下行数据的子帧时,所述接收控制信息和/或下行数据的子帧对应的窄带在一段时间内遍历所有的可用窄带。
  65. 根据权利要求43-50中任一项所述的装置,其中,所述CSI参考资源确定模块是设置为:确定所述CSI参考资源在时域上的子帧为有效下行子帧,所述有效下行子帧满足以下条件至少之一:
    所述子帧为一个下行子帧;
    除了在传输模式9或传输模式10下,所述子帧不是一个多播广播单频网MBSFN子帧;
    所述子帧不包含长度小于或等于7680·Ts的下行导频时隙DwPTS域,其中,Ts为时间单位;
    所述子帧不在配置的测量间隔之内;
    如果UE被配置了CSI子帧集,所述子帧应为所述CSI子帧集中的子帧。
  66. 根据权利要求65所述的装置,其中,所述CSI参考资源确定模块确定的所述时域CSI参考资源为预设子帧之前的子帧中离上报子帧最近的一个或者多个下行子帧。
  67. 根据权利要求43-50中任一项所述的装置,其中,所述CSI参考资源确定模块确定的所述时域CSI参考资源为预设子帧之前的子帧中离上报子 帧最近的一个或者多个下行子帧。
  68. 根据权利要求43-50中任一项所述的装置,其中,所述CSI参考资源确定模块确定的所述CSI参考资源在时域上的一个或者多个子帧中的一个子帧上的CSI参考信号CSI-RS在频域上不超过所述子帧对应的带宽。
  69. 根据权利要求43-50中任一项所述的装置,其中,所述上报模块是设置为:采用以下方式上报所述CSI参考资源上的CSI:
    通过物理上行控制信道PUCCH或者物理上行共享信道PUSCH上报所述CSI。
  70. 根据权利要求69所述的装置,其中,所述PUSCH资源是预设的。
  71. 根据权利要求61所述的装置,其中,所述测量子帧集是预定义的或者基站eNB通知的。
  72. 根据权利要求61所述的装置,所述装置还包括:
    接收模块,设置为:在测量子帧集中的子帧上、在预设或者基站eNB通知的窄带上接收下行信号。
  73. 根据权利要求71所述的装置,所述装置还包括:
    接收模块,设置为:在测量子帧集中的子帧上、在预设或者基站eNB通知的窄带上接收下行信号。
  74. 根据权利要求72或73所述的装置,所述装置还包括:
    判断模块,设置为:判断在所述测量子帧集中的子帧上,如果UE接收控制信号和/或数据信号的窄带与预设或者eNB通知的窄带不重合,则放弃在所述接收控制信号和/或数据信号的窄带接收所述控制信号和/或数据信号。
  75. 一种触发用户设备UE上报信道状态信息CSI的装置,包括:
    第一发送模块设置为向UE发送参考信号;
    第二发送模块设置为向UE发送以下内容:周期上报的相关资源信息和/或触发上报的相关资源信息。
  76. 根据权利要求75所述的装置,其中,所述参考信号包括小区参考信号CRS和/或CSI参考信号CSI-RS。
  77. 根据权利要求76所述的装置,其中,所述CSI-RS的带宽在频域上不超过发送给UE下行信号所在的窄带的带宽。
  78. 根据权利要求75所述的装置,其中,所述周期上报的相关资源信息包括以下信息至少之一:
    上报周期和/或子帧偏移、上报CSI使用的资源、时间窗信息、测量子帧集、频域CSI参考资源、可用窄带。
  79. 根据权利要求75所述的装置,其中,所述触发上报的相关资源信息包括以下信息至少之一:
    触发CSI上报的信息、上报CSI使用的资源、时间窗信息、测量子帧集,时域CSI参考资源、频域CSI参考资源。
  80. 根据权利要求75所述的装置,其中,第二发送模块是设置为:将所述触发上报的相关资源信息包含在下行控制信息DCI或者随机接入响应RAR中发送。
  81. 根据权利要求80所述的装置,其中,所述DCI为调度物理上行共享信道PUSCH的DCI或者调度物理下行共享信道PDSCH的DCI或者专用DCI。
  82. 根据权利要求80所述的装置,其中,所述RAR为非竞争接入时的RAR或者竞争接入时的RAR。
  83. 根据权利要求81所述的装置,其中,所述PUSCH的资源是预设的。
  84. 根据权利要求78或79所述的装置,其中,所述测量子帧集是预定义的或者基站eNB通知的。
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018052258A1 (ko) * 2016-09-19 2018-03-22 삼성전자 주식회사 이동 통신 시스템에서의 기준 신호, 제어 신호 및 데이터 송신 방법 및 장치
EP3496487A4 (en) * 2016-08-10 2019-08-14 Ntt Docomo, Inc. USER DEVICE AND RADIO COMMUNICATION PROCEDURE
WO2021072691A1 (en) * 2019-10-17 2021-04-22 Qualcomm Incorporated Configuration of csi reference resource and csi target resource for predictive estimation of channel state information
US11412548B2 (en) 2017-06-22 2022-08-09 Huawei Technologies Co., Ltd. Communication method and device

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10681676B2 (en) * 2015-02-25 2020-06-09 Qualcomm Incorporated Narrowband management for machine type communications
CN107431888B (zh) * 2015-04-10 2021-02-26 Lg电子株式会社 在无线接入系统中控制探测参考信号发送的方法和装置
DE102015009779B4 (de) * 2015-07-27 2021-08-12 Apple Inc. Leistungsoptimierung für Kanalzustandsmeldungen in einem drahtlosen Kommunikationsnetz
WO2017043876A1 (ko) * 2015-09-10 2017-03-16 엘지전자 주식회사 협대역을 이용한 통신 방법 및 mtc 기기
US10178668B2 (en) * 2016-08-08 2019-01-08 Qualcomm Incorporated Periodic and aperiodic CSI reporting procedures for enhanced licensed assisted access
US11063717B2 (en) * 2016-08-08 2021-07-13 Lg Electronics Inc. Channel state information transmitting method and user equipment, and channel state information receiving method and base station
CN108260133B (zh) 2016-12-28 2020-05-12 维沃移动通信有限公司 一种波束测量上报的方法、网络侧设备及移动终端
WO2018126456A1 (zh) * 2017-01-06 2018-07-12 广东欧珀移动通信有限公司 一种测量方法、基站及终端
MX2019010130A (es) 2017-02-28 2019-10-15 Guangdong Oppo Mobile Telecommunications Corp Ltd Metodo de comunicacion inalambrica, dispositivo terminal y dispositivo de red.
CN108809484B (zh) * 2017-04-28 2020-04-21 华为技术有限公司 一种信道状态的指示方法、装置及网络设备
US10601483B2 (en) * 2017-09-29 2020-03-24 Apple Inc. Channel state information (CSI) reporting for bandwidth parts
CN109600783A (zh) * 2017-09-30 2019-04-09 中国移动通信有限公司研究院 小区测量值上报方法、小区测量值接收方法和设备
CN109802783A (zh) * 2017-11-17 2019-05-24 电信科学技术研究院 非周期信道状态信息的传输方法、终端设备及网路设备
US11153060B2 (en) * 2017-12-29 2021-10-19 Comcast Cable Communications, Llc Selection of grant and CSI
EP4040863A1 (en) 2018-01-10 2022-08-10 Comcast Cable Communications LLC Power control for channel state information
CN110740024B (zh) * 2018-07-20 2021-09-28 维沃移动通信有限公司 一种csi上报方法、终端及网络设备
DE112019003991T5 (de) * 2018-08-09 2021-04-22 Lg Electronics Inc. Verfahren zum verbessern der messleistungsfähigkeit eines endgeräts in einem drahtloskommunikationssystem und einrichtung dafür
CN110535510B (zh) * 2018-08-10 2022-10-18 中兴通讯股份有限公司 一种信道状态信息的上报/处理方法、设备及存储介质
CN112753179B (zh) * 2018-09-28 2022-06-14 华为技术有限公司 随机接入方法以及随机接入装置
CN113938261B (zh) * 2019-01-11 2023-03-10 华为技术有限公司 通信方法和装置
WO2020191705A1 (en) * 2019-03-28 2020-10-01 Qualcomm Incorporated Configuring channel state information (csi) reporting for a set of narrowbands
CN111601347B (zh) * 2019-06-19 2021-10-01 维沃移动通信有限公司 上报方法、配置方法、终端及网络侧设备
CN111601348B (zh) * 2019-06-19 2022-01-28 维沃移动通信有限公司 信息上报、获取方法、终端及网络侧设备
CN110662307A (zh) * 2019-09-27 2020-01-07 中兴通讯股份有限公司 信息上报、接收方法、装置、终端、服务节点及存储介质
WO2021203308A1 (en) * 2020-04-08 2021-10-14 Apple Inc. Redundancy gap indication for improved data transmission
WO2022036497A1 (en) * 2020-08-17 2022-02-24 Qualcomm Incorporated Multi-slot channel quality information (cqi) reporting
CN114765483A (zh) * 2021-01-15 2022-07-19 维沃移动通信有限公司 信道状态信息的上报方法、装置及终端
CN115118359A (zh) * 2021-03-19 2022-09-27 华为技术有限公司 一种通信方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102170334A (zh) * 2011-05-03 2011-08-31 中兴通讯股份有限公司 信道质量指示信息的获取方法和装置
WO2012095015A1 (zh) * 2011-01-12 2012-07-19 中兴通讯股份有限公司 一种确定信道质量指示信息的方法和装置
WO2012155511A1 (zh) * 2011-08-15 2012-11-22 中兴通讯股份有限公司 一种计算信道质量指示信息的终端及方法
WO2014050492A1 (ja) * 2012-09-27 2014-04-03 シャープ株式会社 端末装置、基地局装置、通信システム、上りリンク送信制御方法および集積回路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8526384B2 (en) * 2009-05-06 2013-09-03 Lg Electronics Inc. Method of transmitting and receiving channel state information feedback in a wireless communication system
CN102201897B (zh) * 2011-04-29 2017-09-15 中兴通讯股份有限公司 信道状态信息处理方法、装置及系统
CN102255689B (zh) * 2011-07-08 2018-05-04 中兴通讯股份有限公司 一种信道状态信息的处理方法、装置及系统
CN103780358B (zh) * 2012-10-24 2018-08-21 中兴通讯股份有限公司 一种确定信道状态信息的方法及终端
CN104105129B (zh) * 2013-04-12 2019-02-05 北京三星通信技术研究有限公司 Lte系统中的非周期csi报告方法和用户设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012095015A1 (zh) * 2011-01-12 2012-07-19 中兴通讯股份有限公司 一种确定信道质量指示信息的方法和装置
CN102170334A (zh) * 2011-05-03 2011-08-31 中兴通讯股份有限公司 信道质量指示信息的获取方法和装置
WO2012155511A1 (zh) * 2011-08-15 2012-11-22 中兴通讯股份有限公司 一种计算信道质量指示信息的终端及方法
WO2014050492A1 (ja) * 2012-09-27 2014-04-03 シャープ株式会社 端末装置、基地局装置、通信システム、上りリンク送信制御方法および集積回路

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3496487A4 (en) * 2016-08-10 2019-08-14 Ntt Docomo, Inc. USER DEVICE AND RADIO COMMUNICATION PROCEDURE
US10827478B2 (en) 2016-08-10 2020-11-03 Ntt Docomo, Inc. User terminal and radio communication method
AU2017310731B2 (en) * 2016-08-10 2021-10-07 Ntt Docomo, Inc. User equipment and radio communication method
WO2018052258A1 (ko) * 2016-09-19 2018-03-22 삼성전자 주식회사 이동 통신 시스템에서의 기준 신호, 제어 신호 및 데이터 송신 방법 및 장치
US11805433B2 (en) 2016-09-19 2023-10-31 Samsung Electronics Co., Ltd Method and device for transmitting reference signal, control signal, and data in mobile communication system
US11412548B2 (en) 2017-06-22 2022-08-09 Huawei Technologies Co., Ltd. Communication method and device
US11778668B2 (en) 2017-06-22 2023-10-03 Huawei Technologies Co., Ltd. Communication method and device
WO2021072691A1 (en) * 2019-10-17 2021-04-22 Qualcomm Incorporated Configuration of csi reference resource and csi target resource for predictive estimation of channel state information

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