Method and apparatus for generating csi report

Patent metadata

Field	Value
Publication number	US-2016134408-A1
Application number	US-201514935321-A
Country	US
Kind code	A1
Filing date	Nov 6, 2015
Priority date	Nov 7, 2014
Publication date	May 12, 2016
Grant date	—

Abstract

Provided are a method for generating a CSI report and a terminal thereof. The method for generating a CSI report includes: receiving a CSI-RS from a serving cell of a base station through at least one CSI-RS resource included in a CSI-RS occasion; and generating the CSI report based on the CSI-RS received through the at least one CSI-RS resource.

First claim

What is claimed is:

1 . A method for generating a channel state information (CSI) report of a terminal, comprising:
receiving a CSI-RS from a serving cell of a base station through at least one CSI-RS resource included in a channel state information-reference signal (CSI-RS) occasion; and generating the CSI report based on the CSI-RS received through the at least one CSI-RS resource.

2 . The method of claim 1 , wherein:
the CSI-RS occasion includes at least one subframe.

3 . The method of claim 1 , further comprising:
prior to the receiving, receiving configuration information on the CSI-RS occasion from the base station.

4 . The method of claim 3 , wherein:
the receiving of the configuration information on the CSI-RS occasion from the base station includes receiving configuration information on the CSI-RS occasion from the base station through radio resource control (RRC) signaling.

5 . The method of claim 3 , wherein:
the configuration information on the CSI-RS occasion includes at least one of period information of the CSI-RS occasion, subframe offset information of the CSI-RS occasion, or identification list information of the CSI-RS resource.

6 . The method of claim 5 , wherein:
identification list information of the CSI-RS resources includes at least one of information on the number of antenna ports for each CSI-RS resource included in the at least one CSI-RS resource, information on configuration of the at least one CSI-RS resource, information on a relative subframe offset of the at least one CSI-RS resource, or association information of the at least one CSI-RS resource.

7 . The method of claim 1 , wherein:
the generating includes: generating a plurality of CSI reports for the CSI-RS occasion.

8 . The method of claim 7 , wherein:
the generating includes: generating the CSI report based on association information of the CSI-RS resources defined for the CSI-RS occasion.

9 . The method of claim 1 , further comprising:
prior to the receiving, receiving configuration information of ZP (Zero Power) CSI-RS occasion on ZP CSI-RS resource included in the CSI-RS occasion from the base station, wherein the configuration information of the ZP CSI-RS occasion includes at least one of period information of the ZP CSI-RS occasion, subframe offset information of the ZP CSI-RS occasion, duration information of the ZP CSI-RS occasion, or identification list information of the ZP CSI-RS resource.

10 . The method of claim 1 , further comprising:
prior to the receiving, receiving configuration information of CSI-IM (channel state information-interference measurement) occasion on CSI-IM resource included in the CSI-RS occasion from the base station, wherein the configuration information of the CSI-IM occasion includes at least one of period information of the CSI-IM occasion, subframe offset information, duration information of the CSI-IM occasion, or identification list information of the CSI-IM occasion.

11 . A terminal, comprising:
at least one processor; a memory; and a radio frequency unit wherein the at least one processor executes at least one program stored in the memory to perform receiving a CSI-RS from a serving cell of a base station through at least one CSI-RS resource included in a channel state information-reference signal (CSI-RS) occasion; and generating the CSI report based on the CSI-RS received through the at least one CSI-RS resource.

12 . The terminal of claim 11 , wherein:
the CSI-RS occasion includes at least one subframe.

13 . The terminal of claim 11 , wherein:
the at least one processor further executes receiving configuration information on the CSI-RS occasion from the base station, prior to the receiving of the CSI-RS by executing the at least one program.

14 . The terminal of claim 13 , wherein:
the at least one processor executes the receiving of the configuration information on the CSI-RS occasion from the base station through radio resource control (RRC) signaling when executing the receiving of the configuration information on the CSI-RS occasion from the base station by executing the at least one program.

15 . The terminal of claim 13 , wherein:
the configuration information on the CSI-RS occasion includes at least one of period information of the CSI-RS occasion, subframe offset information of the CSI-RS occasion, or identification list information of the CSI-RS resource.

16 . The terminal of claim 15 , wherein:
identification list information of the CSI-RS resources includes at least one of information on the number of antenna ports for each CSI-RS resource included in the at least one CSI-RS resource, information on configuration of the at least one CSI-RS resource, information on a relative subframe offset of the at least one CSI-RS resource, or association information of the at least one CSI-RS resource.

17 . The terminal of claim 11 , wherein:
when executing the generating of the CSI report by executing the at least one program, the at least one processor executes the generating of the plurality of CSI reports for the CSI-RS occasion.

18 . The terminal of claim 17 , wherein:
when executing the generating of the CSI report by executing the at least one program, the at least one processor executes the generating of the CSI report based on association information of the CSI-RS resources defined for the CSI-RS occasion.

19 . The terminal of claim 11 , wherein:
the at least one processor further executes receiving configuration information of ZP (Zero Power) CSI-RS occasion on ZP CSI-RS resource included in the CSI-RS occasion from the base station, prior to the receiving of the CSI-RS by executing the at least one program, wherein the configuration information of the ZP CSI-RS occasion includes at least one of period information of the ZP CSI-RS occasion, subframe offset information of the ZP CSI-RS occasion, duration information of the ZP CSI-RS occasion, or identification list information of the ZP CSI-RS resource.

20 . The terminal of claim 11 , wherein:
the at least one processor further executes receiving configuration information of CSI-IM (channel state information-interference measurement) occasion on CSI-IM resource included in the CSI-RS occasion from the base station, prior to the receiving of the CSI-RS by executing the at least one program, wherein the configuration information of the CSI-IM occasion includes at least one of period information of the CSI-IM occasion, subframe offset information of the CSI-IM occasion, duration information of the CSI-IM occasion, or identification list information of the CSI-IM resource.

Assignees

• Korea Electronics Telecomm

Inventors

• Kim Cheulsoon
• Shin Wooram
• Moon Sung-Hyun

Classifications

• H04L5/0057 Primary

  Physical resource allocation for CQI · CPC title

• H04B7/0626 Primary

  Channel coefficients, e.g. channel state information [CSI] · CPC title

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04B7/0632

  Channel quality parameters, e.g. channel quality indicator [CQI] · CPC title

• H04B7/063

  Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection · CPC title