MOBILE TERMINAL DEVICE, WIRELESS BASE STATION DEVICE, AND WIRELESS COMMUNICATION METHOD

Title:

MOBILE TERMINAL DEVICE, WIRELESS BASE STATION DEVICE, AND WIRELESS COMMUNICATION METHOD

Document Type and Number:

WIPO Patent Application WO/2011/016414

Kind Code:

A1

Abstract:

Disclosed are a wireless communication method, a wireless base station device, and a mobile terminal device, which can handle a user multiplexing method that can multiplex a greater number of users in a shared uplink channel. The wireless communication method is characterized by, in mobile terminal devices, performing diffusion processing that multiplies the data signal by a different code for each user and transmitting the diffusion processed data signal to the wireless base station via the shared uplink channel, and in the aforementioned wireless base station, the aforementioned data signal is received, and the desired user signal is separated by user to obtain a data signal for each user from the received signal, which has a plurality of intermingled users multiplied by the aforementioned different diffusion code for each user.

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Inventors:

KAWAMURA TERUO (JP)
SAWAHASHI MAMORU (JP)

Application Number:

PCT/JP2010/063012

Publication Date:

February 10, 2011

Filing Date:

August 02, 2010

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Assignee:

NTT DOCOMO INC (JP)
KAWAMURA TERUO (JP)
SAWAHASHI MAMORU (JP)

International Classes:

H04W72/04; H04W72/12

Domestic Patent References:

WO2008114663A1	2008-09-25
WO2006134946A1	2006-12-21

Foreign References:

JP2009111780A	2009-05-21
JP2002111631A	2002-04-12
JPH07303090A	1995-11-14
JP2009182808A	2009-08-13

Other References:

"Proceedings of the 2007 IEICE General Conference, Tsushin 1, 07 March 2007 (07.03.2007)", article KEN'ICHI HIGUCHI ET AL.: "Orthogonal CDMA-Based Multiplexing Method for L1/L2 Control Channels in Evolved UTRA Uplink B-5-67", pages: 481, XP003022102
See also references of EP 2464185A4
"Evolved Universal Terrestrial Radio Access (E-UTRA); LTE Physical Layer-General Description (Release 8", 3GPP, TS 36.211 (V8.3.0, March 2009 (2009-03-01)

Attorney, Agent or Firm:

AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)

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