Title:
MOBILE COMMUNICATION SYSTEM AND BASE STATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/053653
Kind Code:
A1
Abstract:
[PROBLEMS] To prevent a collision occurring during random access when a mobile station
device performs the random access according to the instruction from a base station
to respond to handover or paging. [MEANS FOR SOLVING PROBLEMS] In a mobile communication
system that a mobile station device (200) uses any signature of a predetermined
signature group with a base station device (100) during random access, the signature
group is composed of the signature group managed by the base station device (100)
and the signature group managed by the mobile station device (200). The signature
group managed by the base station device (100) is associated with a specific reason
for the random access and includes the signature selected by the base station
device (100).
Inventors:
KATO YASUYUKI
YAMADA SHOHEI
OH WAHOH
YAMADA SHOHEI
OH WAHOH
Application Number:
PCT/JP2007/068964
Publication Date:
May 08, 2008
Filing Date:
September 28, 2007
Export Citation:
Assignee:
SHARP KK (JP)
KATO YASUYUKI
YAMADA SHOHEI
OH WAHOH
KATO YASUYUKI
YAMADA SHOHEI
OH WAHOH
International Classes:
H04J1/00; H04J11/00; H04W74/08
Foreign References:
| JP2005210640A | 2005-08-04 |
Other References:
TEXAS INSTRUMENTS INC.: "Content of initial Unsynchronized RACH access and contention resolution", 3GPP TSG RAN WG2 #54, vol. R2-062107, 1 September 2006 (2006-09-01), pages 1 - 6, XP050131727
LG ELECTRONICS: "Initial access for LTE", 3GPP TSG-RAN WORKING GROUP #49, vol. R2-052769, 11 November 2005 (2005-11-11), pages 1 - 2, XP008115382
ERICSSON: "3GPP DRAFT; R1-060998, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", vol. RAN WGI, 21 March 2006, MOBILE COMPETENCE CENTRE, article "E-UTRA Random Access Preamble Design"
ERICSSON: "3GPP DRAFT; R1-060584, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", 9 February 2006, MOBILE COMPETENCE CENTRE, article "E-UTRA Random Access"
See also references of EP 2083580A4
LG ELECTRONICS: "Initial access for LTE", 3GPP TSG-RAN WORKING GROUP #49, vol. R2-052769, 11 November 2005 (2005-11-11), pages 1 - 2, XP008115382
ERICSSON: "3GPP DRAFT; R1-060998, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", vol. RAN WGI, 21 March 2006, MOBILE COMPETENCE CENTRE, article "E-UTRA Random Access Preamble Design"
ERICSSON: "3GPP DRAFT; R1-060584, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", 9 February 2006, MOBILE COMPETENCE CENTRE, article "E-UTRA Random Access"
See also references of EP 2083580A4
Attorney, Agent or Firm:
FUKUCHI, Takeo (Shibuya-ku Tokyo, 31, JP)
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