US 10,374,851 B2Granted

Communication system, communication device and communication method that can improve frequency use efficiency

AssigneeSharp Kabushiki Kaisha

InventorsShimpei To, Minoru Kubota, Yasuhiro Hamaguchi, Hideo Namba, Kazunari Yokomakura

Life of this patent

Estimating the term…

Loading patent…

Abstract

A communication device receives a reception signal including at least a first reception signal and a second reception signal, where the first reception signal is a signal to be transmitted using a first set of subcarriers and the second reception signal is a signal to be transmitted using a second set of subcarriers which overlaps with at least one end of the first set of subcarriers in a time frame. The communication device also demodulates information indicating data included in the first reception signal after reducing the second reception signal transmitted by using one or more overlapping subcarriers of the second set of subcarriers from the reception signal.

Claims8

Dependent claims

A communication device comprising:

reception circuitry configured to and/or programmed to receive a reception signal including at least a first reception signal and a second reception signal, and
demodulation circuitry configured to and/or programmed to demodulate information included in the first reception signal, wherein
the first reception signal is a signal received on a first set of subcarriers and the second reception signal is a signal received on a second set of subcarriers a part of which overlaps with at least one end of the first set of subcarriers in a time frame, and
the reception signal includes a third reception signal on a third set of subcarriers a part of which overlaps with at least the other end of the first set of subcarriers in the time frame, and the third set of subcarriers does not overlap with the second set of subcarriers.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 15/617,742Filed 8 Jun 2017 · continuation
Priority: JP 2008-0551335 Mar 2008
Published: US 2017/0272289 A121 Sep 2017
Granted: 6 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 27/156
Demodulator circuits; Receiver circuits: with demodulation using temporal properties of the received signal, e.g. detecting pulse width
H04J 11/004
At the receiver: using regenerative subtractive interference cancellation
H04L 5/0037
Arrangements for allocating sub-channels of the transmission path: inter-user or inter-terminal allocation
H04L 5/0044
Arrangements for allocating sub-channels of the transmission path: allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH

Family

PCT/JP2009/054166Parent of this division · filed 5 Mar 2009
Application14/298,706Parent of this continuation · filed 6 Jun 2014
US 8,780,825 B2Parent of this division · filed 15 Jul 2014
US 2017/0272289 A1Pre-grant publication · published 21 Sep 2017
US 9,680,676 B2Parent of this continuation
Application12/921,082Parent of this division
Application14/298,706Parent of this division
US 2011/0007701 A1Published application
US 2014/0286461 A1Published application
US 10,374,851 B2This patent

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

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key