US 2017/0324521 A1Published application

Method and apparatus for determining number of harq processes in wireless communication system

AssigneeLG Electronics Inc.

InventorsDongyoun SEO, Joonkui AHN, Suckchel YANG, Yunjung YI, Daesung HWANG

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Abstract

Provided are a method for determining the number of hybrid automatic repeat request (HARQ) processes in a carrier aggregated system configured with a plurality of serving cells, and an apparatus using such a method. The method receives data from a downlink subframe of a second serving cell, and transmits an ACK/NACK signal for the data from an uplink subframe of a first serving cell, wherein the first serving cell uses a first-type frame, the second serving cell uses a second-type frame, and the number of HARQ processes in the second serving cell are determined with respect to each subframe comprised in the second-type frame and on the basis of the number of downlink subframes comprised in each section comprising a set number of subframes.

Claims12

Dependent claims

A method for determining a number of hybrid automatic repeat request (HARQ) processes in a carrier aggregation system in which a plurality of serving cells are configured, the method performed by a user equipment and comprising:

receiving data in a downlink subframe of a second serving cell;
and
transmitting a positive acknowledgement/negative-acknowledgement (ACK/NACK) signal in response to the data in an uplink subframe of a first serving cell,
wherein the first serving cell uses a frequency division duplex (FDD) frame and the second serving cell uses either a time division duplex (TDD) frame or a FDD frame,
wherein when the second serving cell uses the TDD frame, the TDD frame is configured with any one of uplink-downlink configurations according to a table as follows:
Uplink-downlink
Subframe number
configuration
0
1
2
3
4
5
6
7
8
9
0
D
S
U
U
U
D
S
U
U
U
1
D
S
U
U
D
D
S
U
U
D
2
D
S
U
D
D
D
S
U
D
D
3
D
S
U
U
U
D
D
D
D
D
4
D
S
U
U
D
D
D
D
D
D
5
D
S
U
D
D
D
D
D
D
D
6
D
S
U
U
U
D
S
U
U
D
wherein D denotes a downlink subframe, S denotes a special subframe and U denotes an uplink subframe, and,
wherein a maximum number of HARQ processes of the second serving cell is determined as a maximum number of HARQ processes of the first serving cell regardless of whether the second serving cell uses the TDD frame or the FDD frame.

94 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/654,620Filed 19 Jul 2017
Priority: 18 Dec 2012
Published: 9 Nov 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

H04L 1/1822
Automatic repetition systems, e.g. Van Duuren systems: involving configuration of automatic repeat request [ARQ] with parallel processes
H04B 7/15557
Ground-based stations: selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
H04L 1/1854
Arrangements specially adapted for the receiver end: scheduling and prioritising arrangements
H04L 5/0055
Allocation of signalling, i.e. of overhead other than pilot signals: physical resource allocation for ACK/NACK

Family

Application61/738,394Us provisional application · filed 18 Dec 2012
Application61/882,004Us provisional application · filed 25 Sep 2013
Application61/896,015Us provisional application · filed 25 Oct 2013
Application14/649,490Continuation · filed 3 Jun 2015
Application15/654,620Continuation
US 10,193,663 B2Related patent
US 2015/0304074 A1Published application
US 9,749,093 B2Related patent
US 2017/0324521 A1This patent

From the US filing history. Foreign family members aren’t listed.