IP Library › Granted Patent US 10,623,987
Granted Patent B2
US 10,623,987 · App. 15/505,339 · Granted Apr 14, 2020

User apparatus and base station

Inventors: Tooru Uchino (Tokyo, JP); Wuri Andarmawanti Hapsari (Tokyo, JP); Hideaki Takahashi (Tokyo, JP); Anil Umesh (Tokyo, JP); Sadayuki Abeta (Tokyo, JP)
Assignee: NTT DOCOMO, INC.
H04W28/04H04L1/1671H04L1/188H04L1/1835H04L1/1848H04L1/1887H04W24/10H04L1/1822H04W88/02H04W88/085
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Quick Facts
Patent No.
US 10,623,987
App. No.
15/505,339
Granted
Apr 14, 2020
Kind
B2
Abstract

A user apparatus is provided. The user apparatus is included in a mobile communication system including a first base station, a second base station communicating with the first base station, and the user apparatus communicating with the first base station. The user apparatus includes an obtaining unit configured to obtain from the second base station instruction information indicating an error correction processing operation performed between the first base station and the user apparatus; and a communication unit configured to communicate with the first base station by performing the error correction processing based on the instruction information.

Claims (7)

1. A user apparatus in a mobile communication system including a first base station, a second base station communicating with the first base station, and the user apparatus communicating with the first base station, the user apparatus comprising:

an obtaining unit configured to obtain a Radio Resource Control (RRC) signal from the second base station, the RRC signal comprising indication information which indicates an error correction processing operation performed between the first base station and the user apparatus; and

a communication unit configured to communicate with the first base station by performing the error correction processing based on the indication information,

wherein the indication information is HARQ process information for a Physical Downlink Shared Channel (PDSCH).

2. The user apparatus according to claim 1 , wherein the indication information includes a number of processes used for the error correction processing.

3. The user apparatus according to claim 2 , wherein the communication unit clears a buffer used for the error correction processing in the case where the indication information is obtained from the second base station.

4. The user apparatus according to claim 1 , wherein the communication unit clears a buffer used for the error correction processing in the case where the indication information is obtained from the second base station.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2017
From: UCHINO, TOORU; HAPSARI, WURI ANDARMAWANTI; TAKAHASHI, HIDEAKI; UMESH, ANIL; ABETA, SADAYUKI
To: NTT DOCOMO, INC.
Reel/Frame 041354/0432 →
Priority Claims (1)
JP 2015-104998 · May 22, 2015 · national
Continuity (1)
Related Publication 20170272975A1 · Sep 21, 2017