EP 2845178 A4 20151223 - SYSTEM AND METHODS FOR COPING WITH DOPPLER EFFECTS IN DISTRIBUTED-INPUT DISTRIBUTED-OUTPUT WIRELESS SYSTEMS
Title (en)
SYSTEM AND METHODS FOR COPING WITH DOPPLER EFFECTS IN DISTRIBUTED-INPUT DISTRIBUTED-OUTPUT WIRELESS SYSTEMS
Title (de)
SYSTEM UND VERFAHREN ZUR BEWÄLTIGUNG VON DOPPLER-EFFEKTEN IN DRAHTLOSEN SYSTEMEN MIT VERTEILTEM EINGANG UND VERTEILTEM AUSGANG
Title (fr)
SYSTÈME ET PROCÉDÉS PERMETTANT DE SUPPORTER LES EFFETS DOPPLER DANS LES SYSTÈMES SANS FIL À ENTRÉES DISTRIBUÉES-SORTIES DISTRIBUÉES
Publication
Application
Priority
- US 201213464648 A 20120504
- US 2013039580 W 20130503
Abstract (en)
[origin: WO2013166464A1] A system and methods are described which compensate for the adverse effect of Doppler on the performance of DIDO systems. One embodiment of such a system employs different selection algorithms to adaptively adjust the active BTSs to different UEs based by tracking the changing channel conditions. Another embodiment utilizes channel prediction to estimate the future CSI or DIDO precoding weights, thereby eliminating errors due to outdated CSI.
IPC 8 full level
H04B 7/01 (2006.01); H04B 7/04 (2006.01); H04B 7/06 (2006.01)
CPC (source: CN EP IL KR RU)
G08B 13/18 (2013.01 - IL RU); H04B 1/7115 (2013.01 - IL KR); H04B 7/01 (2013.01 - CN EP IL KR); H04B 7/024 (2013.01 - IL); H04B 7/0452 (2013.01 - CN EP IL); H04B 7/0626 (2013.01 - CN EP IL); H04B 7/024 (2013.01 - CN EP); Y02D 30/70 (2020.08 - EP IL); Y10S 367/904 (2013.01 - IL KR)
Citation (search report)
No further relevant documents disclosed
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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013166464 A1 20131107; AU 2013256044 A1 20141127; AU 2013256044 B2 20170525; AU 2017210619 A1 20170824; AU 2017210619 B2 20191024; AU 2020200070 A1 20200130; BR 112014027631 A2 20190514; CA 2872502 A1 20131107; CA 2872502 C 20210518; CN 104603853 A 20150506; CN 104603853 B 20200218; CN 111262613 A 20200609; EP 2845178 A1 20150311; EP 2845178 A4 20151223; HK 1209521 A1 20160401; IL 235518 A0 20150129; IL 235518 B 20200227; IL 272481 A 20200331; IL 272481 B1 20231101; IL 272481 B2 20240301; JP 2015526917 A 20150910; JP 2017225138 A 20171221; JP 2019198082 A 20191114; JP 6178842 B2 20170809; JP 6542300 B2 20190710; KR 101875397 B1 20180802; KR 20150016299 A 20150211; MX 2014013377 A 20150603; MX 354045 B 20180209; RU 2014148791 A 20160627; RU 2018109118 A 20190226; RU 2649078 C2 20180329; SG 11201407381V A 20141230; TW 201407987 A 20140216; TW 201729553 A 20170816; TW 202015357 A 20200416; TW 202243428 A 20221101; TW I591976 B 20170711; TW I685222 B 20200211; TW I756605 B 20220301
DOCDB simple family (application)
US 2013039580 W 20130503; AU 2013256044 A 20130503; AU 2017210619 A 20170804; AU 2020200070 A 20200106; BR 112014027631 A 20130503; CA 2872502 A 20130503; CN 201380035543 A 20130503; CN 202010055466 A 20130503; EP 13784690 A 20130503; HK 15110250 A 20151019; IL 23551814 A 20141105; IL 27248120 A 20200205; JP 2015510498 A 20130503; JP 2017138170 A 20170714; JP 2019109413 A 20190612; KR 20147033764 A 20130503; MX 2014013377 A 20130503; RU 2014148791 A 20130503; RU 2018109118 A 20130503; SG 11201407381V A 20130503; TW 102116145 A 20130506; TW 106114789 A 20130506; TW 108148122 A 20130506; TW 111107021 A 20130506