EP 2591562 A1 20130515 - RANGING CHANNEL STRUCTURES AND METHODS
Title (en)
RANGING CHANNEL STRUCTURES AND METHODS
Title (de)
KANALSTRUKTUREN FÜR ENTFERNUNGSMESSUNG UND VERFAHREN
Title (fr)
PROCÉDÉS ET STRUCTURES DE CANAL DE TÉLÉMÉTRIE
Publication
Application
Priority
- CA 2010001034 W 20100706
- US 22310809 P 20090706
Abstract (en)
[origin: WO2011003183A1] To facilitate ranging between mobile terminals and a base station in a wireless communication network employing orthogonal frequency division multiplexing (OFDM) for uplink data communications, a periodic ranging channel for use by a mobile terminal is defined. The channel specifies a plurality N of blocks of sub-carrier frequencies of an OFDM frequency band which are non-contiguous within the OFDM frequency band. The channel also specifies a time slot within an OFDM subframe which spans one or more OFDM symbol periods. A ranging transmission is periodically sent as a spread signal across the specified N blocks of sub-carrier frequencies within the specified time slot. The duration of the ranging transmission may be less than a duration of the OFDM subframe. A notional grid of tiles representing time and frequency resources associated with the subframe may facilitate channel definition. A similar approach may be used to define an initial access channel for initial access transmissions.
IPC 8 full level
H04B 7/208 (2006.01); H04B 7/01 (2006.01); H04W 72/04 (2009.01)
CPC (source: EP KR)
H04B 7/04 (2013.01 - KR); H04L 5/0007 (2013.01 - KR); H04L 5/0048 (2013.01 - EP KR); H04L 27/2602 (2013.01 - KR); H04W 72/044 (2013.01 - EP); H04W 72/0446 (2013.01 - KR); H04W 72/0453 (2013.01 - KR); H04B 7/04 (2013.01 - EP)
Citation (search report)
See references of WO 2011003183A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011003183 A1 20110113; CN 103190091 A 20130703; CN 103190091 B 20151125; EP 2591562 A1 20130515; IN 519CHN2013 A 20150703; JP 2013529876 A 20130722; JP 5674932 B2 20150225; KR 101460920 B1 20141113; KR 20130036314 A 20130411
DOCDB simple family (application)
CA 2010001034 W 20100706; CN 201080068454 A 20100706; EP 10796615 A 20100706; IN 519CHN2013 A 20130122; JP 2013516919 A 20100706; KR 20137003054 A 20100706