IP Library › Granted Patent US 11,159,269
Granted Patent B2
US 11,159,269 · App. 16/610,818 · Granted Oct 26, 2021

Method of acquiring channel state information (CSI), user equipment (UE), and transmission and reception point (TRP)

Inventors: Yuichi Kakishima (Tokyo, JP); Chongning Na (Tokyo, JP); Satoshi Nagata (Tokyo, JP)
Assignee: NTT DOCOMO, INC.
H04L1/0026H04L5/0051H04L5/0098H04W72/042H04W72/0493H04W80/02
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Quick Facts
Patent No.
US 11,159,269
App. No.
16/610,818
Granted
Oct 26, 2021
Kind
B2
Abstract

A method of acquiring Channel State Information (CSI) includes transmitting, from a Transmission and Reception Point (TRP) to a User Equipment (UE), information indicating that both of a Resource setting and a CSI reporting setting are commonly set to activation or deactivation. The Resource setting being set to the activation causes the UE to assume that CSI-Reference Signals (RSs) are to be transmitted from the TRP. The CSI reporting setting being set to the activation triggers the UE to perform CSI reporting. The method further includes receiving, with the UE, the CSI-RSs transmitted in accordance with a predetermined type of time domain behavior when the Resource setting is set to the activation. The method further includes performing, with the UE, the CSI reporting in accordance with the predetermined type of time domain behavior when the CSI reporting setting is set to activation.

Claims (18)

1. A terminal comprising:

a receiver that receives a resource setting and a plurality of reporting settings corresponding to a channel state information-reference signal (CSI-RS); and

a transmitter that, when an information is set to on, transmits a report corresponding to the CSI-RS based on any of the reporting settings using the information, the information relating to the resource setting and the any of the reporting settings among the plurality of reporting settings,

wherein each of the resource setting and the plurality of reporting settings comprises on/off switching information.

2. A radio communication method for a terminal, comprising:

receiving a resource setting and a plurality of reporting settings corresponding to a channel state information-reference signal (CSI-RS); and

when an information is set to on, transmitting a report corresponding to the CSI-RS based on any of the reporting settings using the information, the information relating to the resource setting and the any of the reporting settings among the plurality of reporting settings,

wherein each of the resource setting and the plurality of reporting settings comprises on/off switching information.

3. A base station comprising:

a transmitter that transmits a resource setting and a plurality of reporting settings corresponding to a channel state information-reference signal (CSI-RS); and

a receiver that, when an information is set to on, receives a report corresponding to the CSI-RS transmitted based on any of the reporting settings using the information, the information relating to the resource setting and the any of the reporting settings among the plurality of reporting settings,

wherein each of the resource setting and the plurality of reporting settings comprises on/off switching information.

4. A system comprising a base station and a terminal, wherein the base station comprises:

a first transmitter that transmits a resource setting and a plurality of reporting settings corresponding to a channel state information-reference signal (CSIRS); and

the terminal comprises:

a receiver that receives the resource setting and the plurality of reporting settings corresponding to the CSI-RS; and

a second transmitter that, when an information is set to on, transmits a report corresponding to the CSI-RS based on any of the reporting settings using the information, the information relating to the resource setting and the any of the reporting settings among the plurality of reporting settings,

wherein each of the resource setting and the plurality of reporting settings comprises on/off switching information.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2019
From: DOCOMO INNOVATIONS, INC.
To: NTT DOCOMO, INC.
Reel/Frame 051162/0111 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2019
From: KAKISHIMA, YUICHI; NA, CHONGNING; NAGATA, SATOSHI
To: DOCOMO INNOVATIONS, INC.
Reel/Frame 051162/0252 →
Continuity (2)
Provisional Application 62501312 · May 4, 2017
Related Publication 20200067631A1 · Feb 27, 2020