MX2015009365A - Transmitters, receivers and methods of transmitting and receiving with scattered and continuous pilots in an ofdm system. - Google Patents
Transmitters, receivers and methods of transmitting and receiving with scattered and continuous pilots in an ofdm system.Info
- Publication number
- MX2015009365A MX2015009365A MX2015009365A MX2015009365A MX2015009365A MX 2015009365 A MX2015009365 A MX 2015009365A MX 2015009365 A MX2015009365 A MX 2015009365A MX 2015009365 A MX2015009365 A MX 2015009365A MX 2015009365 A MX2015009365 A MX 2015009365A
- Authority
- MX
- Mexico
- Prior art keywords
- symbols
- pilot
- sub
- pattern
- scattered
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A receiver recovers data from Orthogonal Frequency Division Multiplexed (OFDM) symbols, the OFDM symbols including a plurality of sub-carrier signals. Some of the sub-carrier signals carrying data symbols and some of the sub-carrier signals carrying pilot symbols, the pilot symbols comprising scattered pilots symbols and continuous pilot symbols. The continuous pilot symbols are distributed across the sub-carrier signals in accordance with a continuous pilot symbol pattern and the scattered pilot symbols are distributed across the sub-carrier signals in accordance with a scattered pilot signal pattern. The receiver comprises a demodulator configured to detect a signal representing the OFDM symbols and to generate a sampled digital version of the OFDM symbols in the time domain. A Fourier transform processor is configured to receive the time domain digital version of the OFDM symbols and to form a frequency domain version of the OFDM symbols, from which the pilot symbol bearing sub-carriers and the data symbol bearing sub-carriers can be recovered. A detector is configured to recover the data symbols from the data bearing sub-carriers of the OFDM symbols and to recover the pilot symbols from the pilot bearing sub-carriers of the OFDM symbols in accordance with the scattered pilot symbol pattern and the continuous pilot symbol pattern. The scattered pilot symbol pattern is one of a plurality of scattered pilot symbol patterns and the continuous pilot pattern is independent of the scattered pilot symbol pattern. The detector comprises a memory configured to store a master continuous pilot pattern and a processor configured to detect the number of sub-carrier signals in the plurality of sub-carrier signals and to derive the continuous pilot pattern from a master pilot pattern based on the number of sub-carrier symbols.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1304531.5A GB2511797B (en) | 2013-03-13 | 2013-03-13 | Transmitters, receivers and methods of transmitting and receiving |
| PCT/GB2014/050441 WO2014140520A1 (en) | 2013-03-13 | 2014-02-14 | Transmitters, receivers and methods of transmitting and receiving with scattered and continuous pilots in an ofdm system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2015009365A true MX2015009365A (en) | 2015-09-23 |
| MX349792B MX349792B (en) | 2017-08-11 |
Family
ID=48189852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2015009365A MX349792B (en) | 2013-03-13 | 2014-02-14 | Transmitters, receivers and methods of transmitting and receiving with scattered and continuous pilots in an ofdm system. |
Country Status (7)
| Country | Link |
|---|---|
| KR (1) | KR101790604B1 (en) |
| CN (1) | CN105075207B (en) |
| CA (1) | CA2904775C (en) |
| GB (1) | GB2511797B (en) |
| MX (1) | MX349792B (en) |
| TW (1) | TWI680650B (en) |
| WO (1) | WO2014140520A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111453B (en) * | 2016-11-24 | 2020-08-18 | 北京遥感设备研究所 | Binary differential phase shift keying signal open-loop carrier extraction method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1980214B (en) * | 1997-07-01 | 2010-07-21 | 松下电器产业株式会社 | Transmitting method, receiving method, transmitting apparatus and receiving apparatus |
| DE10210656A1 (en) * | 2002-03-11 | 2003-05-08 | Siemens Ag | Multi-carrier transmission system for wireless and/or connected communications transmits scattered pilots distributed over sub-carrier frequency spectrum, time of relevant periodic sequence |
| KR100842069B1 (en) * | 2002-09-30 | 2008-06-30 | 삼성전자주식회사 | COFDM transmission system add pilot signal in frequence domain and a method proessing OFDM signal thereof |
| GB2412552A (en) * | 2004-03-26 | 2005-09-28 | Sony Uk Ltd | Receiver |
| EP2071758A1 (en) * | 2007-12-11 | 2009-06-17 | Sony Corporation | OFDM-Transmitting apparatus and method, and OFDM-receiving apparatus and method |
| US7899140B2 (en) * | 2007-12-17 | 2011-03-01 | Newport Media, Inc. | Scattered pilot correlation in DVB-H systems |
| US8724717B2 (en) * | 2008-04-10 | 2014-05-13 | Mediatek Inc. | Pilot pattern design for high-rank MIMO OFDMA systems |
| US20100124292A1 (en) * | 2008-11-20 | 2010-05-20 | Advanced Micro Devices, Inc. | Method and System for Receiver Synchronization |
| GB2469069A (en) * | 2009-03-31 | 2010-10-06 | Sony Corp | A receiver for OFDM which idenitifies and cancels impulse noise by comparison with the long term noise. |
| US8467346B2 (en) * | 2009-06-19 | 2013-06-18 | Futurewei Technologies, Inc. | Method and apparatus for generating time-frequency patterns for reference signal in an OFDM wireless communication system |
-
2013
- 2013-03-13 GB GB1304531.5A patent/GB2511797B/en active Active
-
2014
- 2014-01-17 TW TW103101805A patent/TWI680650B/en active
- 2014-02-14 KR KR1020157022644A patent/KR101790604B1/en active IP Right Grant
- 2014-02-14 WO PCT/GB2014/050441 patent/WO2014140520A1/en active Application Filing
- 2014-02-14 CA CA2904775A patent/CA2904775C/en active Active
- 2014-02-14 CN CN201480014485.8A patent/CN105075207B/en active Active
- 2014-02-14 MX MX2015009365A patent/MX349792B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| TWI680650B (en) | 2019-12-21 |
| KR101790604B1 (en) | 2017-10-27 |
| CA2904775A1 (en) | 2014-09-18 |
| CN105075207B (en) | 2018-12-14 |
| CN105075207A (en) | 2015-11-18 |
| WO2014140520A1 (en) | 2014-09-18 |
| KR20150109449A (en) | 2015-10-01 |
| GB2511797A (en) | 2014-09-17 |
| MX349792B (en) | 2017-08-11 |
| CA2904775C (en) | 2018-05-01 |
| GB201304531D0 (en) | 2013-04-24 |
| TW201436479A (en) | 2014-09-16 |
| GB2511797B (en) | 2020-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration |