WO2013170420A1 - 信道状态信息上报方法及终端、基站 - Google Patents

信道状态信息上报方法及终端、基站 Download PDF

Info

Publication number
WO2013170420A1
WO2013170420A1 PCT/CN2012/075453 CN2012075453W WO2013170420A1 WO 2013170420 A1 WO2013170420 A1 WO 2013170420A1 CN 2012075453 W CN2012075453 W CN 2012075453W WO 2013170420 A1 WO2013170420 A1 WO 2013170420A1
Authority
WO
WIPO (PCT)
Prior art keywords
reported
frequency band
needs
pmi
information
Prior art date
Application number
PCT/CN2012/075453
Other languages
English (en)
French (fr)
Inventor
李元杰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/075453 priority Critical patent/WO2013170420A1/zh
Priority to CN201280000972.XA priority patent/CN103534972A/zh
Publication of WO2013170420A1 publication Critical patent/WO2013170420A1/zh

Links

Classifications

    • 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
    • H04L1/0028Formatting

Definitions

  • the present invention relates to communication technologies, and in particular, to a channel state information (CSI) reporting method, a terminal, and a base station.
  • CSI channel state information
  • a terminal may report channel state information to an Evolved NodeB (eNB) ( Channel State Information (CSI), so that the eNB can perform scheduling processing on the Physical Downlink Shared Channel (PDSCH) according to the CSI transmission.
  • eNB Evolved NodeB
  • CSI Channel State Information
  • Enhanced physical downlink control channel (Enhanced Physical Downlink) is introduced due to the introduction of multiple input multiple output (MIMO) and Coordinated Multiple Points (CoMP) technologies.
  • Control Channel, ePDCCH Control Channel
  • the ePDCCH is transmitted in an area in which a sub-frame transmits a downlink data channel, and is frequency-divided with the PDSCH.
  • the CSI of >3 ⁇ 4 on the terminal is designed for the transmission of the PDSCH, and the resources of the PDSCH are allocated on the system bandwidth, in some cases, there may be some transport channels such as ePDCCH, and the resource distribution is specific.
  • the frequency band such that the CSI reporting for the PDSCH causes a large number of invalid reports, or the reported CSI does not target the frequency band in which the transport channels are located, causing the eN B to fail to utilize the CSI information of >3 ⁇ 4, resulting in a decrease in system transmission performance.
  • the embodiment of the invention provides a CSI reporting method, a terminal, and a base station, which are used to reduce invalid reporting and improve system transmission performance.
  • a CSI reporting method including:
  • the bandwidth of the frequency band to be reported is smaller than the system bandwidth; and reporting, in the frequency band that needs to be reported, to the base station according to the information of the frequency band that needs to be reported CSI.
  • a CSI reporting method including: sending, to a terminal, information of a frequency band that needs to be reported, where a bandwidth of the frequency band to be reported is smaller than a system bandwidth;
  • a terminal including:
  • an obtaining unit configured to obtain information about a frequency band that needs to be reported, where a bandwidth of the frequency band to be reported is smaller than a system bandwidth;
  • a sending unit configured to report, to the base station, the CSI in the frequency band that needs to be reported according to the information about the frequency band that needs to be reported obtained by the obtaining unit.
  • a base station including: a sending unit, configured to send, to the terminal, information about a frequency band that needs to be reported, where a bandwidth of the frequency band to be reported is smaller than a system bandwidth;
  • a receiving unit configured to receive, by the terminal, the CSI in the frequency band that needs to be reported according to the information about the frequency band that needs to be reported.
  • the CSI of the frequency band, the sub-band or the resource block in the frequency band that needs to be reported can be reported only by determining the frequency band that needs to be reported, and the CSI can be implemented for certain channels, for example: ePDCCH.
  • the above problem solves the problem of a large number of invalid reporting caused by the fact that the CSI on the terminal cannot correspond to certain channels in the prior art, thereby improving the system transmission performance.
  • FIG. 1 is a schematic flowchart of a CSI reporting method according to an embodiment of the present invention
  • 2 is a schematic diagram showing a distribution of frequency bands that need to be reported in the embodiment corresponding to FIG. 1
  • FIG. 3 is a schematic diagram showing a distribution of frequency bands that need to be reported in the embodiment corresponding to FIG.
  • FIG. 4 is a schematic flowchart of a CSI reporting method according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the technical solution of the present invention can be applied to a wireless communication system such as an LTE system or an LTE-A system.
  • the terminal may be an LTE system or a user equipment (UE) in the LTE-A system;
  • the base station may be an LTE system or an eNB in the LTE-A system.
  • UE user equipment
  • FIG. 1 is a schematic flowchart of a CSI reporting method according to an embodiment of the present invention, as shown in FIG. 1.
  • the frequency band that needs to be reported may be a continuous frequency band within the system bandwidth, as shown in FIG. 2, or may be a plurality of discontinuous frequency bands in the system bandwidth, as shown in FIG. The embodiment defines this.
  • the CSI is composed of at least one of a Precoding Matrix Indicator (PMI) and a Channel Quality Indicator (CQI).
  • PMI Precoding Matrix Indicator
  • CQI Channel Quality Indicator
  • the execution bodies of the above 101 and 102 are terminals.
  • the terminal specifically obtains information about the pre-configured frequency band that needs to be reported, for example: a protocol convention.
  • the terminal may be specifically Receiving information about the frequency band that needs to be reported sent by the base station. Specifically, the terminal may specifically receive information about the frequency band to be reported that is sent by the base station by using signaling.
  • the signaling may be a radio resource control (RRC) message, which may be carried by an information element (IE) in an RRC message.
  • RRC radio resource control
  • IE information element
  • the information about the frequency band that needs to be reported, the RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, etc., which is not limited in this embodiment.
  • the IE of the RRC message is extended to carry the information of the frequency band that needs to be reported, or the RRC message may also be an RRC message different from the existing ones in the prior art.
  • the signaling may also be a Media Access Control (MAC) Control Element (CE) message, which is carried by adding a new MAC CE.
  • MAC Media Access Control
  • CE Control Element
  • the base station may determine the frequency band to be reported according to the channel condition, and the specific determining manner may be as follows. Taking the ePDCCH in the LTE system as an example, the frequency band that needs to be reported may be the frequency band in which the physical resource block mapped by the ePDCCH is located.
  • the eNB can determine the CSI that needs to be reported according to the channel condition of the ePDCCH. Therefore, the eNB can obtain the CSI for the ePDCCH reported by the UE, so that the coding and modulation mode and the pre-modulation of the ePDCCH can be better configured according to the CSI.
  • the coding matrix and the like can effectively improve the transmission performance of the ePDCCH.
  • the frequency band that needs to be reported may be determined according to the information about the frequency band that needs to be reported.
  • the information about the frequency band that needs to be reported may include:
  • the set of subbands of the frequency band that needs to be reported is the set of subbands of the frequency band that needs to be reported.
  • the system bandwidth includes 16 physical resource blocks (Physical Resource Block, PRB), i.e. PRB0 ⁇ PRB15, ⁇ 1 below the frequency band is needed only Gen PRB4 ⁇ PRB1 1 as an example, the frequency band of the information to be reported to be Detailed description.
  • PRB Physical Resource Block
  • bitmap of the frequency band that needs to be reported is 000011 11 11 110000, where "1" Indicates that you need to report; "0" means you do not need to report. vice versa.
  • the starting point of the frequency band to be reported is PRB4 and the ending position is PRB1 1.
  • the starting point of the frequency band to be reported is PRB4 and the bandwidth information is 8.
  • a subband includes 4 PRBs, that is, subbands within the system bandwidth are subband 0 ⁇ subband 3, then the subbands of the bands to be reported are subband 1 and subband 2.
  • the terminal may specifically report, to the base station, a PMI of the frequency band that needs to be reported, and a CQI corresponding to the PMI, where the PMI is To choose from a subset of codebooks.
  • the PMI of the frequency band to be reported on the terminal can be understood as the PMI of the entire frequency band in the frequency band to be reported, which is a PMI.
  • the terminal may specifically report, to the base station, a PMI of the frequency band that needs to be reported, where the PMI is selected from a codebook subset. It can be understood that the PMI of the frequency band to be reported reported by the terminal can be understood as the PMI of the entire frequency band in the frequency band to be reported, which is a PMI.
  • the terminal may specifically report, to the base station, a CQI of the frequency band that needs to be reported.
  • the CQI of the frequency band to be reported reported by the terminal can be understood as the CQI of the entire frequency band in the frequency band to be reported, which is a CQL.
  • the terminal may specifically report, to the base station, a PMI of each subband in the frequency band that needs to be reported, and a CQI corresponding to the PMI.
  • the PMI is selected from a subset of codebooks.
  • the terminal may specifically report, to the base station, a PMI of each subband in the frequency band that needs to be reported, where the PMI is a slave codebook. Focus on choice.
  • the terminal may specifically report, to the base station, a CQI of each subband in the frequency band that needs to be reported.
  • the terminal may specifically report, to the base station, a PMI of each resource block in the frequency band that needs to be reported, and a PMI corresponding to the PMI.
  • the PMI is selected from a subset of codebooks.
  • the terminal specifically The PMI of each resource block in the frequency band that needs to be reported may be reported to the base station, where the PMI is selected from a codebook subset.
  • the terminal may specifically report, to the base station, a CQI of each resource block in the frequency band that needs to be reported.
  • the terminal may specifically report, to the base station, a PMI of the M subbands in the frequency band that needs to be reported, and a CQI corresponding to the PMI.
  • the M subbands are selected from the frequency band that needs to be reported, and the PMI is selected from a codebook subset.
  • the PMI of the M subbands in the frequency band to be reported reported by the terminal can be understood as the PMI of the entire M subbands in the frequency band to be reported, which is a PMI.
  • the M represents one or more, and details are not described herein below.
  • the terminal may specifically report, to the base station, a PMI of the M subbands in the frequency band that needs to be reported, where the M subbands are slaves.
  • the intra-band selection needs to be reported, and the PMI is selected from a codebook subset. It can be understood that the PMI of the M subbands in the frequency band to be reported reported by the terminal can be understood as the PMI of the entire M subbands in the frequency band to be reported, which is a PMI.
  • the terminal may specifically report, to the base station, a CQI of the M subbands in the frequency band that needs to be reported, where the M subbands are slaves.
  • the intra-band selection that needs to be reported can be understood that: the CQI of the M subbands in the frequency band to be reported reported by the terminal can be understood as the CQI of the entire M subbands in the frequency band to be reported, which is a CQI.
  • the codebook subset used by the terminal to select the PMI is sent by the base station to the terminal by using the signaling.
  • the codebook subset used by the terminal to select the PMI is sent by the base station to the terminal by using the signaling.
  • the base station may perform the scheduling process according to the CSI reported by the terminal.
  • the CSI of the embodiment of the present invention includes, but is not limited to: indicating a CQI, where the PMI is selected from a codebook subset; or
  • a PMI of the frequency band to be reported the PMI being selected from a codebook subset; or a CQI of the frequency band to be reported; or
  • a PMI of each subband in the frequency band to be reported and a CQI corresponding to the PMI Said PMI is selected from a subset of codebooks;
  • a PMI of each subband within the frequency band to be reported the PMI being selected from a subset of codebooks
  • a PMI of each resource block in the frequency band to be reported the PMI being selected from a codebook subset
  • the one or more sub-bands are selected from the frequency band to be reported, and the PMI is selected from the codebook subset;
  • a PMI of one or more sub-bands in the frequency band to be reported the one or more sub-bands being selected from the frequency band to be reported, and the PMI is selected from a codebook subset;
  • the CQI of one or more sub-bands in the frequency band to be reported the one or more sub-bands being selected from the frequency band to be reported.
  • the CSI of the frequency band, the sub-band or the resource block in the frequency band that needs to be reported can be reported, and the CSI reporting for some channels, for example, ePDCCH, can be implemented.
  • ePDCCH some channels
  • FIG. 4 is a schematic flowchart of a CSI reporting method according to another embodiment of the present invention, as shown in FIG. 4 .
  • the frequency band that needs to be reported may be a continuous frequency band within the system bandwidth, as shown in FIG. 2, or may be a plurality of discontinuous frequency bands in the system bandwidth, as shown in FIG. The embodiment defines this.
  • the base station may determine the frequency band to be reported according to the channel condition, and the specific determining manner may be as follows.
  • the LTE system ePDCCH is taken as an example.
  • the frequency band that needs to be reported may be a frequency band in which the physical resource block mapped by the ePDCCH is located.
  • the eNB can determine the CSI that needs to be reported according to the channel condition of the ePDCCH. Therefore, the eNB can obtain the CSI for the ePDCCH reported by the UE, so that the coding and modulation mode and the pre-modulation of the ePDCCH can be better configured according to the CSI.
  • the coding matrix and the like can effectively improve the transmission performance of the ePDCCH.
  • step 401 is an optional step, and does not limit the embodiment of the present invention.
  • the CSI is composed of at least one of a Precoding Matrix Indicator (PMI) and a Channel Quality Indicator (CQI).
  • PMI Precoding Matrix Indicator
  • CQI Channel Quality Indicator
  • the execution entities of the above 401 to 104 are base stations.
  • the frequency band that needs to be reported may be determined according to the information about the frequency band that needs to be reported.
  • the information about the frequency band that needs to be reported may include:
  • the set of subbands of the frequency band that needs to be reported is the set of subbands of the frequency band that needs to be reported.
  • the base station may specifically send, by using signaling, information about the frequency band that needs to be reported to the terminal.
  • the signaling may be a radio resource control (RRC) message, which may be carried by an information element (IE) in an RRC message.
  • RRC radio resource control
  • IE information element
  • the information about the frequency band that needs to be reported, the RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, etc., which is not limited in this embodiment.
  • the IE of the RRC message is extended to carry the information of the frequency band that needs to be reported, or the RRC message may also be an RRC message different from the existing ones in the prior art.
  • the signaling may also be a Media Access Control (MAC) Control Element (CE) message, which is carried by adding a new MAC CE.
  • MAC Media Access Control
  • CE Control Element
  • the base station may receive, by the terminal, a PMI of the frequency band to be reported and a CQI corresponding to the PMI, where the The PMI is selected from a subset of codebooks. It can be understood that the PMI of the frequency band to be reported on the terminal can be understood as the PMI of the entire frequency band in the frequency band that needs to be reported, which is a PMI.
  • the base station may specifically receive a PMI of the frequency band to be reported reported by the terminal, where the PMI is selected from a codebook subset. It can be understood that the PMI of the frequency band to be reported reported by the terminal can be understood as the PMI of the entire frequency band in the frequency band to be reported, which is a PMI.
  • the base station may receive the CQI of the frequency band that needs to be reported reported by the terminal.
  • the CQI of the frequency band to be reported reported by the terminal can be understood as the CQI of the entire frequency band in the frequency band to be reported, which is a CQI.
  • the base station may receive, by the terminal, a PMI of each subband in the frequency band that needs to be reported, and a PMI corresponding to the PMI.
  • the PMI is selected from a subset of codebooks.
  • the base station may receive, by the terminal, a PMI of each subband in the frequency band that needs to be reported, and the PMI is a slave code. This subset is selected.
  • the base station may specifically receive a CQI of each subband in the frequency band that needs to be reported by the terminal.
  • the base station may receive, by the base station, a PMI of each resource block in the frequency band that needs to be reported, and corresponding to the PMI.
  • CQI the PMI is selected from a subset of codebooks.
  • the base station may receive, by the terminal, a PMI of each resource block in the frequency band that needs to be reported, and the PMI is a slave The codebook subset is selected.
  • the eNB may receive, by using the CQL, the CQL of each resource block in the frequency band that needs to be reported by the terminal.
  • the base station may receive, by the terminal, a PMI and a location of the M subbands in the frequency band that need to be reported by the terminal.
  • the CQI corresponding to the PMI is selected from the frequency band to be reported, and the PMI is selected from the codebook subset. It can be understood that: the PMI of the M subbands in the frequency band to be reported reported by the terminal can be understood as the PMI of the entire M subbands in the frequency band to be reported, which is a PMI.
  • the eNB may receive, by the eNB, a PMI of the M subbands in the frequency band that needs to be reported by the terminal, where The M subbands are selected from the frequency band to be reported, and the PMI is selected from the codebook subset. It can be understood that the PMI of the M subbands in the frequency band to be reported reported by the terminal can be understood as the PMI of the entire M subbands in the frequency band to be reported, which is a PMI.
  • the eNB may receive, by the eNB, a CQI of the M subbands in the frequency band that needs to be reported by the terminal, where The M subbands are selected from the frequency bands that need to be reported. It can be understood that: the CQI of the M subbands in the frequency band to be reported reported by the terminal can be understood as the CQI of the entire M subbands in the frequency band to be reported, which is a CQI.
  • the codebook subset used by the terminal to select the PMI is sent by the base station to the terminal by using the signaling.
  • the codebook subset used by the terminal to select the PMI is sent by the base station to the terminal by using the signaling.
  • the base station may perform scheduling processing according to the CSI reported by the terminal.
  • the CSI of the frequency band, the sub-band or the resource block in the frequency band that needs to be reported can be reported, and the CSI reporting for some channels, for example, ePDCCH, can be implemented.
  • ePDCCH some channels
  • FIG. 5 is a schematic structural diagram of a terminal according to another embodiment of the present invention.
  • the terminal in this embodiment may include an obtaining unit 51 and a sending unit 52.
  • the obtaining unit 51 is configured to obtain the information of the frequency band that needs to be reported, and the bandwidth of the frequency band that needs to be reported is smaller than the system bandwidth.
  • the sending unit 52 is configured to report the information to the base station according to the information about the frequency band that needs to be reported obtained by the obtaining unit 51. CSI in the frequency band that needs to be reported.
  • the terminal provided in this embodiment may further include an obtaining subunit 61 or a receiving unit 62.
  • the obtaining sub-unit 61 is configured to obtain information of the pre-configured frequency band that needs to be reported
  • the receiving unit 62 is configured to receive information about the frequency band that needs to be reported sent by the base station.
  • the receiving unit 62 may specifically receive information about the frequency band to be reported that is sent by the base station by using signaling.
  • the signaling may be a radio resource control (RRC) message, which may be carried by an information element (IE) in an RRC message.
  • RRC radio resource control
  • IE information element
  • the information about the frequency band that needs to be reported, the RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, etc., which is not limited in this embodiment.
  • the IE of the RRC message is extended to carry the information of the frequency band that needs to be reported, or the RRC message may also be an RRC message different from the existing ones in the prior art.
  • the signaling may also be a Media Access Control (MAC) Control Element (CE) message, which is carried by adding a new MAC CE.
  • MAC Media Access Control
  • CE Control Element
  • the base station may determine the frequency band to be reported according to the channel condition, and the specific determining manner may be as follows. Taking the LTE system ePDCCH as an example, the frequency band that needs to be reported may be the frequency band in which the physical resource block mapped by the ePDCCH is located.
  • the eNB can determine the CSI that needs to be reported according to the channel condition of the ePDCCH. Therefore, the eNB can obtain the CSI for the ePDCCH reported by the UE, so that the coding and modulation mode and the pre-modulation of the ePDCCH can be better configured according to the CSI.
  • the coding matrix and the like can effectively improve the transmission performance of the ePDCCH.
  • the terminal may specifically determine the frequency band that needs to be reported according to the information about the frequency band that needs to be reported.
  • the frequency that needs to be reported The information with the belt can include:
  • the set of subbands of the frequency band that needs to be reported is the set of subbands of the frequency band that needs to be reported.
  • the sending unit 52 may specifically report, to the base station, a PMI of the frequency band that needs to be reported, and a CQI corresponding to the PMI, where the PMI is a slave codebook. Focus on choice.
  • the sending unit 52 may specifically report, to the base station, a PMI of the frequency band that needs to be reported, where the PMI is selected from a codebook subset.
  • the sending unit 52 may specifically report, to the base station, a CQI of the frequency band that needs to be reported.
  • the sending unit 52 may specifically report, to the base station, a PMI of each subband in the frequency band that needs to be reported, and a CQI corresponding to the PMI, where the PMI is To choose from a subset of codebooks.
  • the sending unit 52 may specifically report, to the base station, a PMI of each subband in the frequency band that needs to be reported, where the PMI is selected from a codebook subset.
  • the sending unit 52 may specifically report, to the base station, a CQI of each subband in the frequency band that needs to be reported.
  • the sending unit 52 may specifically
  • the PMI is selected from a subset of codebooks.
  • the sending unit 52 may specifically report, to the base station, a PMI of each resource block in the frequency band that needs to be reported, where the PMI is selected from a codebook subset.
  • the sending unit 52 may specifically report, to the base station, a CQI of each resource block in the frequency band that needs to be reported.
  • the sending unit 52 may specifically report, to the base station, a PMI of the M subbands in the frequency band that needs to be reported, and a PMI corresponding to the PMI.
  • CQI the M subbands are selected from the frequency band to be reported, and the PMI is selected from a codebook subset.
  • the sending unit 52 may specifically report, to the base station, a PMI of the M subbands in the frequency band that needs to be reported, where the M subbands are reported from the need In-band selection, the PMI is selected from a subset of codebooks;
  • the sending unit 52 may specifically report, to the base station, a CQI of the M subbands in the frequency band that needs to be reported, where the M subbands are reported from the need In-band selection.
  • the determining, by the determining unit, the frequency band that needs to be reported so that the sending unit can report only the CSI of the frequency band, the sub-band or the resource block in the frequency band that needs to be reported, and can implement for certain channels, for example: ePDCCH.
  • the CSI report solves the problem of a large number of invalid reports caused by the fact that the CSI reported by the terminal cannot correspond to the ePDCCH in the prior art, thereby improving the system transmission performance.
  • FIG. 7 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • the base station in this embodiment may include a determining unit 71, a sending unit 72, and a receiving unit 73.
  • the determining unit 71 is an optional unit, and does not limit the present invention, and is used to determine the information of the frequency band that needs to be reported.
  • the bandwidth of the frequency band that needs to be reported is smaller than the system bandwidth.
  • the sending unit 72 is configured to send the foregoing report to the terminal.
  • the receiving unit 73 is configured to receive the CSI in the frequency band to be reported reported by the terminal according to the information of the frequency band that needs to be reported.
  • the determining unit 71 may determine the frequency band to be reported according to the channel condition, and the specific determining manner may be referred to as follows. Taking the LTE system ePDCCH as an example, the frequency band that needs to be reported may be the frequency band in which the physical resource block mapped by the ePDCCH is located.
  • the determining unit 71 determines the frequency band that needs to be reported according to the channel condition of the ePDCCH. Therefore, the receiving unit 73 can obtain the CSI reported by the UE for the ePDCCH, so that the ePDCCH can be configured according to the CSI.
  • the coding modulation method, the precoding matrix, and the like can effectively improve the transmission performance of the ePDCCH.
  • the determining unit 71 may specifically determine the frequency band that needs to be reported according to the information about the frequency band that needs to be reported.
  • the information about the frequency band that needs to be reported may include:
  • the set of subbands of the frequency band that needs to be reported is the set of subbands of the frequency band that needs to be reported.
  • the sending unit 72 may specifically send the information about the frequency band that needs to be reported to the terminal by using signaling.
  • the signaling may be a radio resource control (RRC) message, which may be carried by an information element (IE) in an RRC message.
  • RRC radio resource control
  • IE information element
  • the information about the frequency band that needs to be reported, the RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, etc., which is not limited in this embodiment.
  • the IE of the RRC message is extended to carry the information of the frequency band that needs to be reported, or the RRC message may also be an RRC message different from the existing ones in the prior art.
  • the signaling may also be a Media Access Control (MAC) Control Element (CE) message, which is carried by adding a new MAC CE.
  • MAC Media Access Control
  • CE Control Element
  • the receiving unit 73 may receive, by the terminal, a PMI that is received by the terminal and that is to be reported by the terminal, and a CQI that is corresponding to the PMI.
  • the PMI is selected from a subset of codebooks.
  • the receiving unit 73 may specifically receive a PMI of the frequency band that needs to be reported reported by the terminal, where the PMI is selected from a codebook subset.
  • the receiving unit 73 may specifically receive the CQI of the frequency band that needs to be reported reported by the terminal.
  • the receiving unit 73 may specifically receive, by the terminal, a PMI of each subband in the frequency band that needs to be reported, and a CQI corresponding to the PMI, where The PMI is selected from a subset of codebooks.
  • the receiving unit 73 may specifically receive, by the terminal, a PMI of each subband in the frequency band that needs to be reported, and the PMI is selected from a codebook subset.
  • the receiving unit 73 may specifically receive the CQI of each subband in the frequency band that needs to be reported by the terminal.
  • the receiving unit 73 may specifically receive, by the terminal, a PMI of each resource block in the frequency band that needs to be reported, and a CQI corresponding to the PMI.
  • the PMI is selected from a subset of codebooks.
  • the receiving unit 73 may specifically receive, by the terminal, a PMI of each resource block in the frequency band that needs to be reported, where the PMI is selected from a codebook subset. .
  • the receiving unit 73 may specifically receive the CQI of each resource block in the frequency band that needs to be reported by the terminal.
  • the receiving unit 73 may specifically receive, by the terminal, a PMI of the M subbands in the frequency band that needs to be reported by the terminal, and a CQI corresponding to the PMI, where The M subbands are selected from the frequency band to be reported, and the PMI is selected from the codebook subset.
  • the receiving unit 73 may specifically receive, by the terminal, a PMI of the M subbands in the frequency band that needs to be reported, where the M subbands are from the requirement.
  • the intra-band is selected, and the PMI is selected from the codebook subset.
  • the receiving unit 73 may specifically receive the CQI of the M subbands in the frequency band that needs to be reported by the terminal, where the M subbands are from the requirement. Selected within the frequency band of the report.
  • the determining, by the determining unit, the frequency band that needs to be reported so that the terminal can report only the CSI of the frequency band, the sub-band or the resource block in the frequency band that needs to be reported, and can implement CSI for certain channels, for example: ePDCCH.
  • ePDCCH CSI for certain channels
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional units are stored in a storage medium and include a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

Landscapes

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

Abstract

本发明实施例提供CSI上报方法及终端、基站,终端通过获得需要上报的频带的信息,所述需要上报的频带的带宽小于系统带宽,继而根据所述需要上报的频带的信息,向基站上报所述需要上报的频带内的CSI。

Description

信道状态信息上报方法及终端、 基站
技术领域
本发明涉及通信技术, 尤其涉及信道状态信息 ( Channel State Information, CSI )上报方法及终端、 基站。 背景技术
在无线通信系统如长期演进(Long Term Evolution , LTE ) 系统和先进 的长期演进 ( Long Term Evolution Advanced, LTE-A ) 系统中, 终端可以 向演进型基站( Evolved NodeB, eNB )上报信道状态信息 ( Channel State Information, CSI ) , 以使得 eNB能够根据该 CSI传输在物理下行共享信道 ( Physical Downlink Shared Channel, PDSCH )调度处理。 由于多用户多 输入多输出( Multiple Input Multiple Output, MIMO )和协作多点( Coordinated Multiple Points, CoMP )等技术的引入, 使得控制信道容量受限, 因此引入 增强的物理下行控制信道 ( Enhanced Physical Downlink Control Channel, ePDCCH )。 ePDCCH在一个子帧传输下行数据信道的区域进行传输, 且与 PDSCH是频分的。
然而, 由于终端上 >¾的 CSI是针对 PDSCH的传输设计, 而 PDSCH的资源 是在系统带宽上进行分配, 但某些情况下, 可能存在一些传输信道例如 ePDCCH , 其资源分布是在某些特定的频带, 这样针对 PDSCH的 CSI上报会造 成大量的无效上报, 或者上报的 CSI 不针对这些传输信道所在的频带, 造成 eN B无法利用上 >¾的 CSI信息, 从而导致了系统传输性能的降低。 发明内容
本发明实施例提供 CSI上报方法及终端、 基站, 用以降低无效上报, 提 高系统传输性能。
一方面, 提供一种 CSI上报方法, 包括:
获得需要上报的频带的信息 ,所述需要上报的频带的带宽小于系统带宽; 根据所述需要上报的频带的信息, 向基站上报所述需要上报的频带内的 CSI。
另一方面, 提供一种 CSI上报方法, 包括: 向终端发送需要上报的频带的信息, 所述需要上报的频带的带宽小于系 统带宽;
接收所述终端根据所述需要上报的频带的信息上报的所述需要上报的频 带内的 CSI。
另一方面, 提供一种终端, 包括:
获得单元, 用于获得需要上报的频带的信息, 所述需要上报的频带的带 宽小于系统带宽;
发送单元, 用于根据所述获得单元获得的需要上报的频带的信息, 向基 站上报所述需要上报的频带内的 CSI。
另一方面, 提供一种基站, 包括: 发送单元, 用于向终端发送需要上报的频带的信息, 所述需要上报的频 带的带宽小于系统带宽;
接收单元, 用于接收所述终端根据所述需要上报的频带的信息, 上报的 所述需要上报的频带内的 CSI。
由上述技术方案可知, 本发明实施例通过确定需要上报的频带, 可以只 对这些需要上报的频带内的频带、 子带或资源块的 CSI进行上报, 能够实现 针对某些信道例如: ePDCCH的 CSI上 4艮, 解决了现有技术中由于终端上才艮 的 CSI不能对应某些信道而导致的大量的无效上报的问题, 从而提高了系统 传输性能。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明一实施例提供的 CSI上报方法的流程示意图; 图 2为图 1对应的实施例中需要上报的频带的分布示意图; 图 3为图 1对应的实施例中需要上报的频带的分布示意图;
图 4为本发明另一实施例提供的 CSI上报方法的流程示意图;
图 5为本发明另一实施例提供的终端的结构示意图;
图 6为本发明另一实施例提供的终端的结构示意图;
图 7为本发明另一实施例提供的基站的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
本发明的技术方案, 可以应用于 LTE系统或 LTE-A系统等无线通信 系统。 其中的终端可以为 LTE 系统或 LTE-A 系统中的用户设备( User Equipment, UE ); 其中的基站可以为 LTE系统或 LTE-A系统中的 eNB。
图 1为本发明一实施例提供的 CSI上报方法的流程示意图,如图 1所示。
101、获得需要上报的频带的信息,所述需要上报的频带的带宽小于系统 带宽。
需要说明的是, 所述需要上报的频带可以为系统带宽内的某个连续的频 带, 如图 2所示, 或者还可以为系统带宽内若干个不连续的频带, 如图 3所 示, 本实施例对此进行限定。
102、根据所述需要上报的频带的信息, 向基站上报所述需要上报的频带 内的 CSI。
其中, 所述 CSI由预编码矩阵指示(Precoding Matrix Indicator, PMI ) 和信道质量指示( Channel Quality Indicator, CQI ) 中的至少一个组成。
其中, 上述 101和 102的执行主体为终端。
可选地, 在本实施例的一个可选实施方式中, 在 101 中, 终端具体可以 获得预先配置的所述需要上报的频带的信息, 例如: 协议约定。
可选地, 在本实施例的一个可选实施方式中, 在 101 中, 终端具体可以 接收所述基站发送的所述需要上报的频带的信息。 具体地, 终端具体可以接 收所述基站通过信令发送的所述需要上报的频带的信息。
可选地, 在本实施例的一个可选实施方式中, 所述信令可以是无线资源 控制( Radio Resource Control, RRC )消息, 具体可以通过 RRC消息中的 信息元素 ( Information Element, IE )携带所述需要上报的频带的信息, 所 述 RRC消息可以为现有技术中的 RRC消息,例如: RRC连接重配置( RRC CONNECTION RECONFIGURATION )消息等, 本实施例对此不进行限定, 通过对已有的 RRC消息的 IE进行扩展携带所述需要上报的频带的信息, 或 者所述 RRC消息也可以为不同于现有技术中已有的 RRC消息。
可选地, 在本实施例的一个可选实施方式中, 所述信令还可以是媒体访 问控制 ( Media Access Control, MAC )控制元素 ( Control Element, CE ) 消息, 通过增加新的 MAC CE携带所述需要上报的频带的信息。
其中, 基站可以根据信道情况, 确定所述需要上报的频带, 具体确定方 式可以参见下述。 以 LTE系统中的 ePDCCH为例, 优选地, 所述需要上报 的频带可以为 ePDCCH映射的物理资源块所在的频带。
由于 eNB根据 ePDCCH的信道情况, 确定了所述需要上报的频带, 因 此, eNB可以获得 UE上报的针对所述 ePDCCH的 CSI ,从而能够更好地根 据所述 CSI , 配置 ePDCCH的编码调制方式和预编码矩阵等, 能够有效提高 ePDCCH的传输性能。
可选地, 在本实施例的一个可选实施方式中, 具体可以根据所述需要上 报的频带的信息, 可以确定需要上报的频带。 其中, 所述需要上报的频带的 信息可以包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
假如系统带宽包括 16 个物理资源块 (Physical Resource Block, PRB ) , 即 PRB0~PRB15, 下面^ 1以需要上才艮的频带为 PRB4~PRB1 1为 例, 对所述需要上报的频带的信息进行详细说明。
例如: 需要上报的频带的比特图为 000011 11 11 110000, 其中, "1 " 表示需要上报; "0" 表示不需要上报。 反之亦然。
例如: 需要上报的频带的起点位置为 PRB4, 终点位置为 PRB1 1。
例如: 需要上报的频带的起点位置为 PRB4, 带宽信息为 8。
例如: 假如一个子带包括 4个 PRB, 即系统带宽内的子带为子带 0~子 带 3, 那么需要上报的频带的子带集合为子带 1和子带 2。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带的 PMI 以及与所述 PMI 对应的 CQI , 所述 PMI为从码本子集中选择。 可以理解的是: 所述终端上 的所述 需要上报的频带的 PMI可以理解为需要上报的频带内整个频带的 PMI, 为一 个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带的 PMI , 所述 PMI为从码本子集中 选择。 可以理解的是: 所述终端上报的所述需要上报的频带的 PMI可以理解 为需要上报的频带内整个频带的 PMI , 为一个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带的 CQI。 所述终端上报的所述需要 上报的频带的 CQI 可以理解为需要上报的频带内整个频带的 CQI , 为一个 CQL
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内每个子带的 PMI以及与所述 PMI 对应的 CQI , 所述 PMI为从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内每个子带的 PMI , 所述 PMI为从 码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内每个子带的 CQI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内每个资源块的 PMI 以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内每个资源块的 PMI, 所述 PMI为 从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内每个资源块的 CQI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内 M个子带的 PMI以及与所述 PMI 对应的 CQI, 所述 M个子带为从所述需要上报的频带内选择, 所述 PMI为从 码本子集中选择。 可以理解的是: 所述终端上报的所述需要上报的频带内 M 个子带的 PMI可以理解为需要上报的频带内整个 M个子带的 PMI, 为一个 PMI。 本发明实施例中, 所述 M表示一个或多个, 下文不再赘述。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内 M个子带的 PMI,所述 M个子带 为从所述需要上报的频带内选择, 所述 PMI为从码本子集中选择。 可以理解 的是:所述终端上报的所述需要上报的频带内 M个子带的 PMI可以理解为需 要上报的频带内整个 M个子带的 PMI, 为一个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 所述终端具体 可以向所述基站上报所述需要上报的频带内 M个子带的 CQI,所述 M个子带 为从所述需要上报的频带内选择。 可以理解的是: 所述终端上报的所述需要 上报的频带内 M个子带的 CQI可以理解为需要上报的频带内整个 M个子带 的 CQI, 为一个 CQI。
需要说明的是: 所述终端选择 PMI所用的码本子集为, 基站通过信令发 送给所述终端的, 具体描述可以参见现有技术中的相关内容, 此处不再赘述。
基站获取上述 CSI之后,基站则可以根据所述终端上报的 CSI进行调 度处理。
需要说明的是, 本发明实施例的 CSI包括但不限于: 指示 CQI, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带的 PMI, 所述 PMI为从码本子集中选择; 或者 所述需要上报的频带的 CQI; 或者
所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应的 CQI,所 述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 PMI ,所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 CQI; 或者
所述需要上报的频带内每个资源块的 PMI以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个资源块的 PMI , 所述 PMI为从码本子集中选 择; 或者
所述需要上报的频带内每个资源块的 CQI; 或者
所述需要上报的频带内一个或多个个子带的 PMI以及与所述 PMI对应的
CQI , 所述一个或多个子带为从所述需要上报的频带内选择, 所述 PMI为从 码本子集中选择; 或者
所述需要上报的频带内一个或多个个子带的 PMI , 所述一个或多个子带 为从所述需要上报的频带内选择, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内一个或多个个子带的 CQI , 所述一个或多个子带 为从所述需要上报的频带内选择。
本实施例中, 通过确定需要上报的频带, 可以只对这些需要上报的频 带内的频带、 子带或资源块的 CSI进行上报, 能够实现针对某些信道例如: ePDCCH 的 CSI 上报, 解决了现有技术中由于终端上报的 CSI 不能对应 ePDCCH而导致的大量的无效上报的问题, 从而提高了系统传输性能。
图 4为本发明另一实施例提供的 CSI上报方法的流程示意图, 如图 4所 示。
401、确定需要上报的频带的信息,所述需要上报的频带的带宽小于系统 带宽。
需要说明的是, 所述需要上报的频带可以为系统带宽内的某个连续的频 带, 如图 2所示, 或者还可以为系统带宽内若干个不连续的频带, 如图 3所 示, 本实施例对此进行限定。
其中, 基站可以根据信道情况, 确定所述需要上报的频带, 具体确定方 式可以参见下述。 以 LTE系统 ePDCCH为例, 优选地, 所述需要上报的频 带可以为 ePDCCH映射的物理资源块所在的频带。 由于 eNB根据 ePDCCH的信道情况, 确定了所述需要上报的频带, 因 此, eNB可以获得 UE上报的针对所述 ePDCCH的 CSI ,从而能够更好地根 据所述 CSI , 配置 ePDCCH的编码调制方式和预编码矩阵等, 能够有效提高 ePDCCH的传输性能。
需要说明的是, 步骤 401为可选步骤, 不对本发明实施例构成限制。
402、 向终端发送所述需要上报的频带的信息。
403、接收所述终端根据所述需要上报的频带的信息,上报的所述需要上 报的频带内的 CSI。
其中, 所述 CSI由预编码矩阵指示(Precoding Matrix Indicator, PMI ) 和信道质量指示( Channel Quality Indicator, CQI ) 中的至少一个组成。
其中, 上述 401 ~104的执行主体为基站。
可选地, 在本实施例的一个可选实施方式中, 在 401 中, 具体可以根据 所述需要上报的频带的信息, 可以确定需要上报的频带。 其中, 所述需要上 报的频带的信息可以包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
可选地, 在本实施例的一个可选实施方式中, 在 402中, 基站具体可以 通过信令向所述终端发送所述需要上报的频带的信息。
可选地, 在本实施例的一个可选实施方式中, 所述信令可以是无线资源 控制( Radio Resource Control, RRC )消息, 具体可以通过 RRC消息中的 信息元素 ( Information Element, IE )携带所述需要上报的频带的信息, 所 述 RRC消息可以为现有技术中的 RRC消息,例如: RRC连接重配置( RRC CONNECTION RECONFIGURATION )消息等, 本实施例对此不进行限定, 通过对已有的 RRC消息的 IE进行扩展携带所述需要上报的频带的信息, 或 者所述 RRC消息也可以为不同于现有技术中已有的 RRC消息。
可选地, 在本实施例的一个可选实施方式中, 所述信令还可以是媒体访 问控制 ( Media Access Control, MAC )控制元素 ( Control Element, CE ) 消息, 通过增加新的 MAC CE携带所述需要上报的频带的信息。 可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带的 PMI以及与所述 PMI对应的 CQI, 所述 PMI为从码本子集中选择。 可以理解的是: 所述终端上 的所述 需要上报的频带的 PMI可以理解为需要上报的频带内整个频带的 PMI, 为一 个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带的 PMI, 所述 PMI为从码本子 集中选择。 可以理解的是: 所述终端上报的所述需要上报的频带的 PMI可以 理解为需要上报的频带内整个频带的 PMI, 为一个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带的 CQI。 所述终端上报的所述 需要上报的频带的 CQI可以理解为需要上报的频带内整个频带的 CQI, 为一 个 CQI。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应的 CQI, 所述 PMI为从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带内每个子带的 PMI, 所述 PMI 为从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带内每个子带的 CQI。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带内每个资源块的 PMI以及与所 述 PMI对应的 CQI, 所述 PMI为从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 403中, 所述基站具体 可以接收所述终端上报的所述需要上报的频带内每个资源块的 PMI , 所述 PMI为从码本子集中选择。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 在 403中, 所 述基站具体可以接收所述终端上报的所述需要上报的频带内每个资源块的 CQL 可选地, 在本实施例的一个可选实施方式中, 在 102中, 在 403中, 所 述基站具体可以接收所述终端上报的所述需要上报的频带内 M个子带的 PMI 以及与所述 PMI对应的 CQI ,所述 M个子带为从所述需要上报的频带内选择, 所述 PMI为从码本子集中选择。 可以理解的是: 所述终端上报的所述需要上 报的频带内 M个子带的 PMI可以理解为需要上报的频带内整个 M个子带的 PMI , 为一个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 在 403中, 所 述基站具体可以接收所述终端上报的所述需要上报的频带内 M 个子带的 PMI , 所述 M个子带为从所述需要上报的频带内选择, 所述 PMI为从码本子 集中选择。 可以理解的是: 所述终端上报的所述需要上报的频带内 M个子带 的 PMI可以理解为需要上报的频带内整个 M个子带的 PMI , 为一个 PMI。
可选地, 在本实施例的一个可选实施方式中, 在 102中, 在 403中, 所 述基站具体可以接收所述终端上报的所述需要上报的频带内 M 个子带的 CQI , 所述 M个子带为从所述需要上报的频带内选择。 可以理解的是: 所述 终端上报的所述需要上报的频带内 M个子带的 CQI可以理解为需要上报的频 带内整个 M个子带的 CQI , 为一个 CQI。
需要说明的是: 所述终端选择 PMI所用的码本子集为, 基站通过信令发 送给所述终端的, 具体描述可以参见现有技术中的相关内容, 此处不再赘述。
基站获取 CSI之后,基站则可以根据所述终端上报的 CSI进行调度处 理。
本实施例中, 通过确定需要上报的频带, 可以只对这些需要上报的频 带内的频带、 子带或资源块的 CSI进行上报, 能够实现针对某些信道例如: ePDCCH 的 CSI 上报, 解决了现有技术中由于终端上报的 CSI 不能对应 ePDCCH而导致的大量的无效上报的问题, 从而提高了系统传输性能。
需要说明的是, 对于前述的各方法实施例, 为了简单描述, 故将其都表 述为一系列的动作组合, 但是本领域技术人员应该知悉, 本发明并不受所描 述的动作顺序的限制, 因为依据本发明, 某些步骤可以采用其他顺序或者同 时进行。 其次, 本领域技术人员也应该知悉, 说明书中所描述的实施例均属 于优选实施例, 所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中没有 详述的部分, 可以参见其他实施例的相关描述。
图 5为本发明另一实施例提供的终端的结构示意图, 如图 5所示, 本实 施例的终端可以包括获得单元 51和发送单元 52。其中, 获得单元 51用于获 得需要上报的频带的信息, 所述需要上报的频带的带宽小于系统带宽; 发送 单元 52用于根据获得单元 51获得的需要上报的频带的信息, 向基站上报所 述需要上报的频带内的 CSI。
可选地, 在本实施例的一个可选实施方式中, 如图 6所示, 本实施例提 供的终端还可以进一步包括获得子单元 61或接收单元 62。 其中, 获得子单 元 61用于获得预先配置的所述需要上报的频带的信息; 接收单元 62用于接 收所述基站发送的所述需要上报的频带的信息。具体地,接收单元 62具体可 以接收所述基站通过信令发送的所述需要上报的频带的信息。
可选地, 在本实施例的一个可选实施方式中, 所述信令可以是无线资源 控制( Radio Resource Control, RRC )消息, 具体可以通过 RRC消息中的 信息元素 ( Information Element, IE )携带所述需要上报的频带的信息, 所 述 RRC消息可以为现有技术中的 RRC消息,例如: RRC连接重配置(RRC CONNECTION RECONFIGURATION )消息等, 本实施例对此不进行限定, 通过对已有的 RRC消息的 IE进行扩展携带所述需要上报的频带的信息, 或 者所述 RRC消息也可以为不同于现有技术中已有的 RRC消息。
可选地, 在本实施例的一个可选实施方式中, 所述信令还可以是媒体访 问控制 (Media Access Control, MAC )控制元素 ( Control Element, CE ) 消息, 通过增加新的 MAC CE携带所述需要上报的频带的信息。
其中, 基站可以根据信道情况, 确定所述需要上报的频带, 具体确定方 式可以参见下述。 以 LTE系统 ePDCCH为例, 优选地, 所述需要上报的频 带可以为 ePDCCH映射的物理资源块所在的频带。
由于 eNB根据 ePDCCH的信道情况, 确定了所述需要上报的频带, 因 此, eNB可以获得 UE上报的针对所述 ePDCCH的 CSI ,从而能够更好地根 据所述 CSI , 配置 ePDCCH的编码调制方式和预编码矩阵等, 能够有效提高 ePDCCH的传输性能。
可选地, 在本实施例的一个可选实施方式中, 终端具体可以根据所述需 要上报的频带的信息, 可以确定需要上报的频带。 其中, 所述需要上报的频 带的信息可以包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带的 PMI 以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带的 PMI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带的 CQI。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内每个子带的 PMI 以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内每个子带的 PMI , 所述 PMI为从码本子集 中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内每个子带的 CQI。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所
CQI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内每个资源块的 PMI , 所述 PMI为从码本子 集中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内每个资源块的 CQI。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内 M个子带的 PMI以及与所述 PMI对应的 CQI , 所述 M个子带为从所述需要上报的频带内选择, 所述 PMI为从码本子 集中选择。
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内 M个子带的 PMI ,所述 M个子带为从所述 需要上报的频带内选择, 所述 PMI为从码本子集中选择;
可选地,在本实施例的一个可选实施方式中,发送单元 52具体可以向所 述基站上报所述需要上报的频带内 M个子带的 CQI ,所述 M个子带为从所述 需要上报的频带内选择。
本实施例中, 终端通过确定单元确定需要上报的频带, 使得发送单元 可以只对这些需要上报的频带内的频带、 子带或资源块的 CSI进行上报, 能 够实现针对某些信道例如: ePDCCH的 CSI上报, 解决了现有技术中由于终 端上报的 CSI不能对应 ePDCCH而导致的大量的无效上报的问题, 从而提 高了系统传输性能。
图 7为本发明另一实施例提供的基站的结构示意图, 如图 7所示, 本实 施例的基站可以包括确定单元 71、 发送单元 72和接收单元 73。 其中, 确定 单元 71 , 为可选单元, 不对本发明构成限制, 用于确定需要上报的频带的信 息, 所述需要上报的频带的带宽小于系统带宽;发送单元 72用于向终端发送 上述需要上报的频带的信息;接收单元 73用于接收所述终端根据所述需要上 报的频带的信息, 上报的所述需要上报的频带内的 CSI。
其中, 确定单元 71可以根据信道情况, 确定所述需要上报的频带, 具体 确定方式可以参见下述。 以 LTE系统 ePDCCH为例, 优选地, 所述需要上 报的频带可以为 ePDCCH映射的物理资源块所在的频带。
由于确定单元 71根据 ePDCCH的信道情况, 确定了所述需要上报的频 带, 因此, 接收单元 73则可以获得 UE上报的针对所述 ePDCCH的 CSI , 从而能够更好地根据所述 CSI ,配置 ePDCCH的编码调制方式和预编码矩阵 等, 能够有效提高 ePDCCH的传输性能。
可选地,在本实施例的一个可选实施方式中,确定单元 71具体可以根据 所述需要上报的频带的信息, 可以确定需要上报的频带。 其中, 所述需要上 报的频带的信息可以包括:
所述需要上报的频带的比特图; 或者 所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
可选地,在本实施例的一个可选实施方式中,发送单元 72具体可以通过 信令向所述终端发送所述需要上报的频带的信息。
可选地, 在本实施例的一个可选实施方式中, 所述信令可以是无线资源 控制( Radio Resource Control, RRC )消息, 具体可以通过 RRC消息中的 信息元素 ( Information Element, IE )携带所述需要上报的频带的信息, 所 述 RRC消息可以为现有技术中的 RRC消息,例如: RRC连接重配置( RRC CONNECTION RECONFIGURATION )消息等, 本实施例对此不进行限定, 通过对已有的 RRC消息的 IE进行扩展携带所述需要上报的频带的信息, 或 者所述 RRC消息也可以为不同于现有技术中已有的 RRC消息。
可选地, 在本实施例的一个可选实施方式中, 所述信令还可以是媒体访 问控制 ( Media Access Control, MAC )控制元素 ( Control Element, CE ) 消息, 通过增加新的 MAC CE携带所述需要上报的频带的信息。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的接收所述终端上报的所述需要上报的频带的 PMI以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带的 PMI ,所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带的 CQI。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应 的 CQI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内每个子带的 PMI , 所述 PMI为从码本 子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内每个子带的 CQI。 可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内每个资源块的 PMI 以及与所述 PMI 对应的 CQI , 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内每个资源块的 PMI , 所述 PMI为从码 本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内每个资源块的 CQI。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内 M个子带的 PMI以及与所述 PMI对 应的 CQI , 所述 M个子带为从所述需要上报的频带内选择, 所述 PMI为从码 本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内 M个子带的 PMI ,所述 M个子带为从 所述需要上报的频带内选择, 所述 PMI为从码本子集中选择。
可选地,在本实施例的一个可选实施方式中,接收单元 73具体可以接收 所述终端上报的所述需要上报的频带内 M个子带的 CQI ,所述 M个子带为从 所述需要上报的频带内选择。
本实施例中, 基站通过确定单元确定需要上报的频带, 使得终端可以 只对这些需要上报的频带内的频带、 子带或资源块的 CSI进行上报, 能够实 现针对某些信道例如: ePDCCH的 CSI上 4艮, 解决了现有技术中由于终端上 报的 CSI不能对应 ePDCCH而导致的大量的无效上报的问题, 从而提高了 系统传输性能。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述描 述的系统, 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合 或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外 ,在本发明各个实施例中的各功能单元可以集成在一个处理单元中 , 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一个单 元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用硬件加软件 功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元, 可以存储在一个计算机 可读取存储介质中。 上述软件功能单元存储在一个存储介质中, 包括若干指 令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等) 执行本发明各个实施例所述方法的部分步骤。 而前述的存储介质包括: U盘、 移动硬盘、 只读存储器 (Read-Only Memory, ROM ) 、 随机存取存储器 ( Random Access Memory, RAM ) 、 磁碟或者光盘等各种可以存储程序代 码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其 限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术 人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或 者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要求 书
1、 一种信道状态信息 CSI上报方法, 其特征在于, 包括:
获得需要上报的频带的信息 ,所述需要上报的频带的带宽小于系统带宽; 根据所述需要上报的频带的信息, 向基站上报所述需要上报的频带内的 CSL
2、 根据权利要求 1所述的方法, 其特征在于, 所述获得需要上报的频带 的信息, 包括:
获得预先配置的所述需要上报的频带的信息; 或者
接收所述基站发送的所述需要上报的频带的信息。
3、 根据权利要求 2所述的方法, 其特征在于, 所述接收所述基站发送的 所述需要上报的频带的信息, 包括:
接收所述基站通过信令发送的所述需要上报的频带的信息。
4、 根据权利要求 1~3任一权利要求所述的方法, 其特征在于, 所述需 要上报的频带的信息, 包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
5、 根据权利要求 1~4任一权利要求所述的方法, 其特征在于, 所述需 要上报的频带为增强的物理下行控制信道 ePDCCH 映射的物理资源块所在 的频带。
6、 根据权利要求 1~5任一权利要求所述的方法, 所述 CSI包括: 所述需要上报的频带的预编码矩阵指示 PMI以及与所述 PMI对应的信道 质量指示 CQI , 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带的 PMI , 所述 PMI为从码本子集中选择; 或者 所述需要上报的频带的 CQI; 或者
所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应的 CQI ,所 述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 PMI ,所述 PMI为从码本子集中选择; 或者 所述需要上报的频带内每个子带的 CQI; 或者
所述需要上报的频带内每个资源块的 PMI以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个资源块的 PMI , 所述 PMI为从码本子集中选 择; 或者
所述需要上报的频带内每个资源块的 CQI; 或者
所述需要上报的频带内一个或多个子带的 PMI 以及与所述 PMI对应的 CQI , 所述一个或多个个子带为从所述需要上报的频带内选择, 所述 PMI为 从码本子集中选择; 或者
所述需要上报的频带内一个或多个子带的 PMI , 所述一个或多个子带为 从所述需要上报的频带内选择, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内一个或多个子带的 CQI , 所述一个或多个子带为 从所述需要上报的频带内选择。
7、 一种信道状态信息 CSI上报方法, 其特征在于, 包括: 向终端发送所述需要上报的频带的信息, 所述需要上报的频带的带宽小 于系统带宽;
接收所述终端根据所述需要上报的频带的信息, 上报的所述需要上报的 频带内的信道状态信息 CSI。
8、 根据权利要求 7所述的方法, 其特征在于, 所述向终端发送所述需要 上报的频带的信息, 包括:
通过信令向所述终端发送所述需要上报的频带的信息。
9、根据权利要求 7或 8所述的方法, 其特征在于, 所述需要上报的频带 的信息, 包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
10、 根据权利要求 7~9任一权利要求所述的方法, 其特征在于, 所述需 要上报的频带为增强的物理下行控制信道 ePDCCH 映射的物理资源块所在 的频带。
11、 根据权利要求 7~10任一权利要求所述的方法, 其特征在于, 所述
CSI, 包括: 指示 CQI, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带的 PMI, 所述 PMI为从码本子集中选择; 或者 所述需要上报的频带的 CQI; 或者
所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应的 CQI,所 述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 PMI,所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 CQI; 或者
所述需要上报的频带内每个资源块的 PMI以及与所述 PMI对应的 CQI, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个资源块的 PMI, 所述 PMI为从码本子集中选 择; 或者
所述需要上报的频带内每个资源块的 CQI; 或者
所述需要上报的频带内一个或多个个子带的 PMI以及与所述 PMI对应的 CQI, 所述一个或多个个子带为从所述需要上报的频带内选择, 所述 PMI为 从码本子集中选择; 或者
接收所述终端上报的所述需要上报的频带内一个或多个子带的 PMI, 所 述一个或多个子带为从所述需要上报的频带内选择, 所述 PMI为从码本子集 中选择; 或者
所述需要上报的频带内一个或多个个子带的 CQI, 所述一个或多个子带 为从所述需要上报的频带内选择。
12、 一种终端, 其特征在于, 包括:
获得单元, 用于获得需要上报的频带的信息, 所述需要上报的频带的带 宽小于系统带宽;
发送单元, 用于根据所述获得单元获得的需要上报的频带的信息, 向基 站上报所述需要上报的频带内的信道状态信息 CSI。
13、 根据权利要求 12所述的终端, 其特征在于, 所述获得单元包括: 获得子单元, 用于获得预先配置的所述需要上报的频带的信息; 或者 接收单元, 用于接收所述基站发送的所述需要上报的频带的信息。
14、 根据权利要求 13 所述的终端, 其特征在于, 所述接收单元具体用 于
接收所述基站通过信令发送的所述需要上报的频带的信息。
15、 根据权利要求 12~14任一权利要求所述的终端, 其特征在于, 所述 需要上报的频带的信息, 包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
16、 根据权利要求 12~15任一权利要求所述的终端, 其特征在于, 所述 需要上报的频带为增强的物理下行控制信道 ePDCCH 映射的物理资源块所 在的频带。
17、 根据权利要求 12~16任一权利要求所述的终端, 其特征在于, 所述 CSI包括: 指示 CQI , 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带的 PMI , 所述 PMI为从码本子集中选择; 或者 所述需要上报的频带的 CQI; 或者
所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应的 CQI ,所 述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 PMI ,所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 CQI; 或者
所述需要上报的频带内每个资源块的 PMI以及与所述 PMI对应的 CQI , 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个资源块的 PMI , 所述 PMI为从码本子集中选 择; 或者 所述需要上报的频带内每个资源块的 CQI; 或者
所述需要上报的频带内一个或多个子带的 PMI 以及与所述 PMI对应的 CQI , 所述一个或多个子带为从所述需要上报的频带内选择, 所述 PMI为从 码本子集中选择; 或者
所述需要上报的频带内一个或多个子带的 PMI , 所述一个或多个子带为 从所述需要上报的频带内选择, 所述 PMI为从码本子集中选择; 或者
向所述基站上报所述需要上报的频带内一个或多个子带的 CQI , 所述一 个或多个子带为从所述需要上报的频带内选择。
18、 一种基站, 其特征在于, 包括: 发送单元, 用于向终端发送需要上报的频带的信息, 所述需要上报的频 带的带宽小于系统带宽;
接收单元, 用于接收所述终端根据所述需要上报的频带的信息, 上报的 所述需要上报的频带内的信道状态信息 CSI。
19、 根据权利要求 18 所述的基站, 其特征在于, 所述发送单元具体用 于
通过信令向所述终端发送所述需要上报的频带的信息。
20、 根据权利要求 18或 19所述的基站, 其特征在于, 所述需要上报的 频带的信息, 包括:
所述需要上报的频带的比特图; 或者
所述需要上报的频带的起点位置和终点位置; 或者
所述需要上报的频带的起点位置和带宽信息; 或者
所述需要上报的频带的子带集合。
21、 根据权利要求 18~20任一权利要求所述的基站, 其特征在于, 所述 需要上报的频带为增强的物理下行控制信道 ePDCCH 映射的物理资源块所 在的频带。
22、 根据权利要求 18~21任一权利要求所述的基站, 其特征在于, 所述 CSI包括: 指示 CQI , 所述 PMI为从码本子集中选择; 或者 所述需要上报的频带的 PMI, 所述 PMI为从码本子集中选择; 或者 所述需要上报的频带的 CQI; 或者
所述需要上报的频带内每个子带的 PMI以及与所述 PMI对应的 CQI,所 述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 PMI,所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个子带的 CQI; 或者
所述需要上报的频带内每个资源块的 PMI以及与所述 PMI对应的 CQI, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内每个资源块的 PMI, 所述 PMI为从码本子集中选 择; 或者
所述需要上报的频带内每个资源块的 CQI; 或者
所述需要上报的频带内一个或多个个子带的 PMI以及与所述 PMI对应的 CQI, 所述一个或多个子带为从所述需要上报的频带内选择, 所述 PMI为从 码本子集中选择; 或者
所述需要上报的频带内一个或多个个子带的 PMI, 所述一个或多个子带 为从所述需要上报的频带内选择, 所述 PMI为从码本子集中选择; 或者
所述需要上报的频带内一个或多个个子带的 CQI, 所述一个或多个子带 为从所述需要上报的频带内选择。
PCT/CN2012/075453 2012-05-14 2012-05-14 信道状态信息上报方法及终端、基站 WO2013170420A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/075453 WO2013170420A1 (zh) 2012-05-14 2012-05-14 信道状态信息上报方法及终端、基站
CN201280000972.XA CN103534972A (zh) 2012-05-14 2012-05-14 信道状态信息上报方法及终端、基站

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/075453 WO2013170420A1 (zh) 2012-05-14 2012-05-14 信道状态信息上报方法及终端、基站

Publications (1)

Publication Number Publication Date
WO2013170420A1 true WO2013170420A1 (zh) 2013-11-21

Family

ID=49582968

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/075453 WO2013170420A1 (zh) 2012-05-14 2012-05-14 信道状态信息上报方法及终端、基站

Country Status (2)

Country Link
CN (1) CN103534972A (zh)
WO (1) WO2013170420A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10511411B2 (en) 2018-01-12 2019-12-17 Huawei Technologies Co., Ltd. Method for configuring channel state information reporting band and communications apparatus
US11239950B2 (en) 2018-01-12 2022-02-01 Huawei Technologies Co., Ltd. Method for configuring channel state information reporting band and communications apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057566A1 (ja) * 2007-10-30 2009-05-07 Ntt Docomo, Inc. 移動通信システム、基地局装置、ユーザ装置及び方法
CN101877627A (zh) * 2010-06-21 2010-11-03 中兴通讯股份有限公司 信道状态信息的反馈方法及终端
CN102237958A (zh) * 2010-05-07 2011-11-09 电信科学技术研究院 一种基于pucch上报csi的方法及装置
CN102237984A (zh) * 2010-05-07 2011-11-09 电信科学技术研究院 一种基于pusch上报csi的方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057566A1 (ja) * 2007-10-30 2009-05-07 Ntt Docomo, Inc. 移動通信システム、基地局装置、ユーザ装置及び方法
CN102237958A (zh) * 2010-05-07 2011-11-09 电信科学技术研究院 一种基于pucch上报csi的方法及装置
CN102237984A (zh) * 2010-05-07 2011-11-09 电信科学技术研究院 一种基于pusch上报csi的方法及装置
CN101877627A (zh) * 2010-06-21 2010-11-03 中兴通讯股份有限公司 信道状态信息的反馈方法及终端

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10511411B2 (en) 2018-01-12 2019-12-17 Huawei Technologies Co., Ltd. Method for configuring channel state information reporting band and communications apparatus
US11239950B2 (en) 2018-01-12 2022-02-01 Huawei Technologies Co., Ltd. Method for configuring channel state information reporting band and communications apparatus

Also Published As

Publication number Publication date
CN103534972A (zh) 2014-01-22

Similar Documents

Publication Publication Date Title
US11139936B2 (en) Data transmission method, terminal device, and network device
WO2016107244A1 (zh) 资源池配置方法及设备、计算机存储介质
US20230076139A1 (en) PUCCH RELIABILITY ENHANCEMENTS WITH MULTIPLE TRPs
WO2018126913A1 (zh) 上行参考信号信息的指示方法及装置和存储介质
WO2014005386A1 (zh) 虚拟载波聚合的方法、基站和用户设备
RU2017103925A (ru) Абонентский терминал и способы выделения и сигнализации о ресурсах времени для межмашинной (d2d) связи
WO2014000214A1 (zh) 下行数据的反馈信息的传输方法及终端、基站
WO2013086954A1 (zh) 信道状态信息的获取方法及装置
WO2012065579A2 (zh) 一种信道状态信息的反馈方法、装置及系统
CN112534743B (zh) 基于波束组合的信道状态信息(csi)反馈
WO2014110807A1 (zh) 秩指示ri比特数的确定方法、基站和终端
WO2014019517A1 (zh) 传输参考信号的方法、用户设备和网络侧设备
WO2014005446A1 (zh) 数据传输方法及窄带终端、基站
CN111740804B (zh) 发送csi的方法及装置
WO2014000206A1 (zh) 信道状态信息处理方法及终端
EP3371911A1 (en) Csi report for mtc operation
JP2023126773A (ja) 通信方法及び通信装置
WO2014111021A1 (zh) 信息上报的方法、用户设备、基站及系统
WO2016037586A1 (zh) CoMP JT通信方法以及基站
CN115702554A (zh) 用于信道状态信息参考信号(csi-rs)资源的端口分组
WO2013189201A1 (zh) 位置处理方法及基站、终端
WO2019153853A1 (zh) 资源指示方法、用户设备及网络侧设备
WO2013166676A1 (zh) 数据传输的方法和装置
WO2014019178A1 (zh) 上行控制信息上报方法及终端、基站
WO2013159613A1 (zh) 一种上行控制信道确定方法及装置

Legal Events

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

Ref document number: 12876992

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12876992

Country of ref document: EP

Kind code of ref document: A1