US 10,855,419 B2Granted

Terminal device, base station device, and method

AssigneeSharp Kabushiki Kaisha

InventorsWataru Ouchi, Naoki Kusashima, Takashi Hayashi

Life of this patent

Estimating the term…

Loading patent…

Abstract

To efficiently control a cell using an allocated frequency band, a non-allocated frequency band, or a shared frequency band. A terminal device for communicating with a base station device includes a reception unit configured to receive higher layer signaling including a DS configuration for a frequency and information indicating whether a partial subframe is configured for a cell corresponding to the frequency. The reception unit is configured to assume that the DS is not to be transmitted in the partial subframe, in a case that the DS configuration includes a CSI-RS configuration and that transmission of the DS overlaps transmission of a PDSCH and/or an EPDCCH in the partial subframe, and to measure a reference signal received power and reference signal reception quality.

Claims5

Dependent claims

A terminal device comprising:

a receiver configured to receive higher layer signaling including first information associated with a measurement of a discovery signal (DS) for a carrier frequency and second information indicating whether a partial subframe is configured or not for a serving cell corresponding to the carrier frequency;
and
a measurement controller configured to measure reference signal received power (RSRP) and reference signal received quality (RSRQ) based on channel state information reference signals (CSI-RS) included in the DS, wherein
the measurement controller is configured to assume that the DS including the CSI-RS is not transmitted in the partial subframe, if all conditions 1), 2) and 3) below are met:
1) the first information includes a configuration associated with a measurement for the CSI-RS,
2) the second information indicates that the partial subframe is configured, and
3) a transmission of the DS is overlapped with a transmission of a physical downlink shared channel (PDSCH) and/or an enhanced physical downlink control channel (EPDCCH) in the partial subframe.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/771,964Filed 4 Nov 2016
Priority: JP 2015-2172845 Nov 2015
Published: US 2018/0241525 A123 Aug 2018
Granted: 1 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/001
The frequencies being orthogonal, e.g. OFDM or DMT: the frequencies being arranged in component carriers
H04L 5/005
Allocation of pilot signals, i.e. of signals known to the receiver: of common pilots, i.e. pilots destined for multiple users or terminals
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals