US 2010/0246455 A1 · PHICH Resource Signaling in a Wireless Communication System

Abstract

A wireless communication terminal and method for determining a number of Physical Hybrid ARQ Indicator Channel (PHICH) groups (N) in the downlink subframe based on a first parameter, a second parameter and a determined cyclic prefix (CP) duration, wherein the first parameter indicates a downlink system bandwidth in terms of a number of resource blocks and the second parameter indicates a scaling factor. The terminal receives downlink control signaling in a set of resource elements in the subframe, wherein the set of resource elements is determined based partly on the number of PHICH groups (N).

Claims19

Dependent claims

A method in a wireless communication terminal, the method comprising:

determining a number of Physical Hybrid ARQ Indicator Channel (PHICH) groups (N) in the downlink subframe based on a first parameter, a second parameter and a determined cyclic prefix (CP) duration,
the first parameter indicating a downlink system bandwidth in terms of a number of resource blocks, the second parameter indicating a scaling factor;
and
receiving downlink control signaling in a set of resource elements in the subframe, wherein the set of resource elements is determined based partly on the number of PHICH groups (N).

1 more element

A wireless communication terminal comprising:

a transceiver;
a controller coupled to the transceiver,
the wireless communication terminal configured to determine a number of Physical Hybrid ARQ Indicator Channel (PHICH) groups (N) in the downlink subframe based on a first parameter, a second parameter and a determined cyclic prefix (CP) duration,
the first parameter indicating a downlink system bandwidth in terms of a number of resource blocks, the second parameter indicating a scaling factor;
and
the transceiver configured to receive downlink control signaling in a set of resource elements in the subframe, wherein the set of resource elements is determined based partly on the number of PHICH groups (N).

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/410,449Filed 24 Mar 2009

Published

30 Sep 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04L 1/1822
Automatic repetition systems, e.g. Van Duuren systems: involving configuration of automatic repeat request [ARQ] with parallel processes
H04L 1/1896
Arrangements specially adapted for the transmitter end: aRQ related signaling
H04L 5/0007
Time-frequency: the frequencies being orthogonal, e.g. OFDM or DMT

PHICH Resource Signaling in a Wireless Communication System

Life of this patent

PHICH Resource Signaling in a Wireless Communication System

Life of this patent

Abstract

Claims19