US 2016/0255635 A1Published application

Terminal communication apparatus and communication method

AssigneeSun Patent Trust

InventorsYoshihiko OGAWA, Seigo NAKAO, Daichi IMAMURA, Akihiko NISHIO, Masayuki HOSHINO, Katsuhiko HIRAMATSU, Kenichi MIYOSHI, Yasuaki YUDA, Sadaki FUTAGI, Takashi IWAI

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Abstract

Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.

Claims6

Dependent claims

A communication apparatus comprising:

circuitry, which, in operation, allocates a plurality of frequency resources to a terminal, the plurality of frequency resources being inconsecutive in a frequency domain, each of the plurality of frequency resources being comprised of a number of consecutive resource block(s), and the plurality of frequency resources being used for transmission of an uplink signal by the terminal;
and
a transmitter, which, in operation, transmits, to the terminal, allocation information indicating the plurality of frequency resources that are allocated to the terminal, wherein:
the number of consecutive resource blocks included in each of the plurality of frequency resources is equal to or greater than a first minimum number of resource block(s) in case of a first bandwidth, and
the number of consecutive resource blocks included in each of the plurality of frequency resources is equal to or greater than a second minimum number of resource block(s) in case of a second bandwidth, the second minimum number being greater than the first minimum number, and the second bandwidth being greater than the first bandwidth.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/149,601Filed 9 May 2016
Priority: JP 2008-26998220 Oct 2008
Published: 1 Sep 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 27/2602
Multicarrier modulation systems: signal structure
H04L 1/0042
Arrangements at the transmitter end: encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit…
H04L 5/0039
Inter-user or inter-terminal allocation: frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the…
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver

Family

Application13/124,811Continuation · filed 9 Aug 2011
Application14/457,783Continuation · filed 12 Aug 2014
Application15/149,601Continuation
US 10,075,957 B2Related patent
US 2012/0026948 A1Published application
US 2014/0348119 A1Published application
US 8,848,632 B2Related patent
US 9,370,007 B2Related patent
US 2016/0255635 A1This patent

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

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