Global Patent Index - EP 2057773 A1

EP 2057773 A1 20090513 - INDICATING RETRANSMISSION PROCESSES IN MULTI-BEAM SYSTEMS

Title (en)

INDICATING RETRANSMISSION PROCESSES IN MULTI-BEAM SYSTEMS

Title (de)

ANZEIGE VON RÜCKÜBERTRAGUNGSPROZESSEN IN MEHRSTRAHL-SYSTEMEN

Title (fr)

INDICATION DE PROCÉDÉS DE RETRANSMISSION DANS DES SYSTÈMES MULTIFAISCEAUX

Publication

EP 2057773 A1 20090513 (EN)

Application

EP 07826237 A 20070903

Priority

  • IB 2007053536 W 20070903
  • EP 06119263 A 20060821
  • EP 07826237 A 20070903

Abstract (en)

[origin: WO2008125923A1] The invention provides an efficient signaling mechanism with a predetermined mapping relationship between retransmission processes and transmission beams for indicating the identities of retransmission processes being transmitted on each beam. Another aspect of the invention provides a mode of transmission with improved performance for frames in which only a single retransmission process has data available for transmission in a multi-beam transmission system, by making a suitable selection of the available beams, or using a decorrelated diversity mode (such as a space-time or space-frequency block code).

IPC 8 full level

H04L 1/18 (2006.01)

CPC (source: EP)

H04B 7/0608 (2013.01); H04B 7/0617 (2013.01); H04B 7/0671 (2013.01); H04B 7/0689 (2013.01); H04L 1/1887 (2013.01); H04L 1/1893 (2013.01); H04L 1/0625 (2013.01)

Citation (search report)

See references of WO 2008125923A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

WO 2008125923 A1 20081023; EP 2057773 A1 20090513; RU 2009110149 A 20100927

DOCDB simple family (application)

IB 2007053536 W 20070903; EP 07826237 A 20070903; RU 2009110149 A 20070903