EP2566089A3
Adaptive pilot structure to assist channel estimation in spread spectrum systems
Abstract
The present Invention relates generally to methods for generating a dynamic pilot symbol structure in spread spectrum communication systems, and in particular to the use of pilot symbols by user equipment in channel estimation. In one form, the method includes, allocating basic pilot symbols (402) at the beginning of each data chunk (404, 406) and spread over the plurality of sub-carrier frequencies; and selectively replacing data symbols (408) in each data chunk (400) with adaptive pilot symbols (410) according to the speed of the user equipment.
Term
Term ended
Projected expiry passed 25 August 2026, 0.1 years ago.
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- Filed
- Published
- Projected expiry
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1 sheet
Sheet 1
Every citation, both waysCites: the store holds 1 of 2
| Document | Relation | Office | Cited during |
|---|---|---|---|
| WO2004056022A2 | Cites | World Intellectual Property Organization (WIPO) | Search report |
26 members in 6 offices
Priority claims14
| Document | Office | Kind | Date |
|---|---|---|---|
| 2005904681 | Australia | A | |
| 2005904681 | Australia | A | |
| 2005904681 | Australia | – | |
| 06783151 | European Patent Office (EPO) | A | |
| 06783151 | European Patent Office (EPO) | A | |
| 2006203697 | Australia | A | |
| 2006203697 | Australia | A | |
| 2006203697 | Australia | – | |
| 06783151 | – | – | – |
| 2005904681 | – | – | – |
| 2006203697 | – | – | – |
| AU20050904681 | – | – | – |
| AU20060203697 | – | – | – |
| EP20060783151 | – | – | – |
Members26
| Document | Office | Kind | |
|---|---|---|---|
| WO2007024027A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2006203697A1 | Australia | A1 | |
| EP1917748A1 | European Patent Office (EPO) | A1 | |
| CN101248607A | China | A | |
| JP2009506583A | Japan | A | |
| US2009279589A1 | United States of America | A1 | |
| US8094737B2 | United States of America | B2 | |
| US2012106596A1 | United States of America | A1 | |
| JP2012199935A | Japan | A | |
| JP5099004B2 | Japan | B2 | |
| JP2013009382A | Japan | A | |
| US2013028294A1 | United States of America | A1 | |
| EP2566089A2 | European Patent Office (EPO) | A2 | |
| EP2566090A2 | European Patent Office (EPO) | A2 | |
| US2013070678A1 | United States of America | A1 | |
| EP2566089A3This record | European Patent Office (EPO) | A3 | |
| EP2566090A3 | European Patent Office (EPO) | A3 | |
| EP1917748A4 | European Patent Office (EPO) | A4 | |
| CN103078724A | China | A | |
| CN103078725A | China | A | |
| CN101248607B | China | B | |
| US8576935B2 | United States of America | B2 | |
| JP5333628B2 | Japan | B2 | |
| US8588271B2 | United States of America | B2 | |
| EP2566090B1 | European Patent Office (EPO) | B1 | |
| EP1917748B1 | European Patent Office (EPO) | B1 |
11 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Request for examination filed17P | 17P | |
| Designated contracting states (corrected)RBV | RBV | |
| Designated contracting statesAK | AK | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Divisional application: reference to earlier applicationAC | AC | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL |
Numbers
- Publication
- 2566089
- Publication, DOCDB
- 2566089
- Publication, EPODOC
- EP2566089
- Application
- 12193779
- Application, DOCDB
- 12193779
- Application, EPODOC
- EP20120193779
Titles3
- German
- Adaptive Pilotstruktur zur Hilfe bei der Kanalschätzung in Spreizspektrumsystemen
- English
- Adaptive pilot structure to assist channel estimation in spread spectrum systems
- French
- Structure pilote adaptative visant à assister une estimation de voie dans des systèmes à etalement du spectre
Classification
- CPC, 13
- H04L5/0085
- H04J11/0023
- H04L5/0023
- H04L5/006
- H04L5/005
- H04L5/0064
- H04L5/0051
- H04L5/0087
- H04L25/0204
- H04L25/0216
- H04L25/0226
- H04L25/0228
- H04L1/0006
- IPC, 3
- H04L5 00
- H04B1 713
- H04L25 02
Designated states4
- Contracting states, 4
- Germany
- France
- United Kingdom
- Italy