OFDM COMMUNICATION METHOD RESISTANT TO THE INFLUENCE OF INTERFERENCE

Title:

OFDM COMMUNICATION METHOD RESISTANT TO THE INFLUENCE OF INTERFERENCE

Document Type and Number:

WIPO Patent Application WO/2017/006979

Kind Code:

A1

Abstract:

In cellular mobile communication in which an OFDM system (including a MIMO-OFDM system) is used, respectively different regular matrices are allocated to base stations. In order to prevent an increase in the detection error rate of information due to the interference of subcarriers having the same or close frequencies in a case in which signals reach a user from a plurality of base stations, coordinate axis rotation is performed using a regular matrix with respect to an input signal to a base station transmission-side IDFT in the OFDM system, whereby the information is dispersed over the entire OFDM signal, rather than being unevenly distributed for a single subcarrier. In this way, an increase in the information detection error rate due to deterioration of the radio wave propagation characteristics of a specific subcarrier is prevented.

More Like This:

JP4745334	Devices and methods for switching between AMC mode and diversity mode in a broadband wireless communication system.
JP5980845	A method and a device for bundling resource Brock in wireless communications
JP4398752	Wireless relay system, wireless relay device and wireless relay method

Inventors:

SUEHIRO NAOKI (JP)

Application Number:

PCT/JP2016/070091

Publication Date:

January 12, 2017

Filing Date:

July 07, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SIGNALDESIGN CO LTD (JP)

International Classes:

H04J11/00; H04W72/04; H04W88/08

Foreign References:

JP2009516942A	2009-04-23
JP2011188139A	2011-09-22

Other References:

MINORU OKADA ET AL.: "A study on Broadband Satellite Communication Systems with CI-OFDM (Carrier Interferometry Orthogonal Frequency Division Multiplex", IEICE TECHNICAL REPORT, SAT, EISEI TSUSHIN, 10 February 2006 (2006-02-10), pages 13 - 17
PARK MYONGHEE ET AL.: "PAPR reduction in OFDM transmission using Hadamard transform", COMMUNICATIONS, 2000 . ICC 2000. 2000 IEEE INTERNATIONAL CONFERENCE, 18 June 2000 (2000-06-18), pages 430 - 433, XP001042984

Attorney, Agent or Firm:

TAKAYA, Satoshi et al. (JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: LIQUID FLAVOR ENHANCER, METHOD FOR COOKING BY HEATING, AND COOKED FOOD PRODUCT

Next Patent: NEGATIVE ELECTRODE FOR LEAD ACID STORAGE BATTERIES, AND LEAD ACID STORAGE BATTERY