Global Patent Index - EP 1704733 B9

EP 1704733 B9 20080924 - HANDOVER IN A WIRELESS LOCAL AREA NETWORK (WLAN)

Title (en)

HANDOVER IN A WIRELESS LOCAL AREA NETWORK (WLAN)

Title (de)

WEITERREICHUNG IN EINEM DRAHTLOSEN LOKALEN NETZWERK (WLAN)

Title (fr)

TRANSFERT DANS UN RESEAU LOCAL SANS FIL (WLAN)

Publication

EP 1704733 B9 20080924 (EN)

Application

EP 04813259 A 20041208

Priority

  • US 2004040917 W 20041208
  • US 53151303 P 20031219
  • US 93111204 A 20040831

Abstract (en)

[origin: US2005136928A1] In triggering a handoff by a wireless transmit/receive unit (WTRU) from a current basic service set (BSS) in a wireless local area network (WLAN), the following are performed. A highest class of traffic service and quality of service (QoS) is determined for the highest class from a basic service set (BSS) beacon. Handoff is terminated and communication is retained with a current BSS when the signal to noise ratio (SNR) or received signal strength (RSS) is greater than a high threshold of the highest class. Other criteria is evaluated to determine whether a handoff is desired when the SNR or RSS is less than the high threshold.

IPC 8 full level

H04W 36/26 (2009.01); H04W 36/30 (2009.01)

CPC (source: EP KR)

H04W 36/26 (2013.01 - EP KR); H04W 36/30 (2013.01 - KR); H04W 40/244 (2013.01 - KR); H04W 84/12 (2013.01 - KR)

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 MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

US 2005136928 A1 20050623; US 7164915 B2 20070116; AR 047336 A1 20060118; AR 060815 A2 20080716; AT 394877 T 20080515; CA 2550167 A1 20050721; CN 1998250 A 20070711; CN 1998250 B 20100428; DE 602004013638 D1 20080619; EP 1704733 A2 20060927; EP 1704733 A4 20070307; EP 1704733 B1 20080507; EP 1704733 B9 20080924; ES 2305901 T3 20081101; JP 2007518299 A 20070705; JP 4383455 B2 20091216; KR 100874938 B1 20081219; KR 20060111678 A 20061027; KR 20060114020 A 20061103; NO 20063360 L 20060913; TW 200522592 A 20050701; TW 200629923 A 20060816; TW 200950537 A 20091201; TW I282672 B 20070611; US 2007111731 A1 20070517; US 2011188477 A1 20110804; US 7925263 B2 20110412; WO 2005065125 A2 20050721; WO 2005065125 A3 20060511

DOCDB simple family (application)

US 93111204 A 20040831; AR P040104786 A 20041220; AR P070101789 A 20070425; AT 04813259 T 20041208; CA 2550167 A 20041208; CN 200480037533 A 20041208; DE 602004013638 T 20041208; EP 04813259 A 20041208; ES 04813259 T 20041208; JP 2006545722 A 20041208; KR 20067014029 A 20060712; KR 20067017129 A 20060825; NO 20063360 A 20060719; TW 93138043 A 20041208; TW 94120324 A 20041208; TW 98102131 A 20041208; US 2004040917 W 20041208; US 201113084913 A 20110412; US 65227107 A 20070111