IN2012DN01129A - - Google Patents
Info
- Publication number
- IN2012DN01129A IN2012DN01129A IN1129DEN2012A IN2012DN01129A IN 2012DN01129 A IN2012DN01129 A IN 2012DN01129A IN 1129DEN2012 A IN1129DEN2012 A IN 1129DEN2012A IN 2012DN01129 A IN2012DN01129 A IN 2012DN01129A
- Authority
- IN
- India
- Prior art keywords
- inputs
- outputs
- precoder
- output
- input
- Prior art date
Links
Classifications
-
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/10—Polarisation diversity; Directional diversity
Abstract
The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method for precoding data in a Multiple-Input Multiple-Output (MIMO) system. Embodiments of the invention disclose a secondary precoder 24 in series with a multiple-input multiple-output precoder 22. The secondary precoder 24 has a plurality of inputs 34, 36 and a plurality of outputs 38, 40. The second plurality of inputs being in communication with each plurality of outputs 38, 40 such that one or more signals input to a respective one or more of the second plurality of inputs 34, 36 provides a substantially equal power of signals at the second plurality of outputs 38,40.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23397209P | 2009-08-14 | 2009-08-14 | |
PCT/SE2009/051426 WO2011019310A1 (en) | 2009-08-14 | 2009-12-15 | Antenna device |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2012DN01129A true IN2012DN01129A (en) | 2015-04-10 |
Family
ID=43586311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1129DEN2012 IN2012DN01129A (en) | 2009-08-14 | 2009-12-15 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8665994B2 (en) |
EP (2) | EP3197066A1 (en) |
DK (1) | DK2465208T3 (en) |
ES (1) | ES2632398T3 (en) |
HU (1) | HUE035293T2 (en) |
IN (1) | IN2012DN01129A (en) |
PL (1) | PL2465208T3 (en) |
PT (1) | PT2465208T (en) |
WO (1) | WO2011019310A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9136932B2 (en) * | 2009-11-09 | 2015-09-15 | Telefonaktiebolaget L M Ecrisson (publ) | Method and arrangement for tuning polarizations for orthogonally polarized antennas |
US8891676B2 (en) | 2010-09-23 | 2014-11-18 | Optis Cellular Technology, Llc | Antenna device and method in a MIMO system |
EP2469731B1 (en) * | 2010-10-04 | 2017-12-27 | Vodafone España, S.A.U. | Method and system for enhanced transmission in mobile communication networks |
US9270359B2 (en) * | 2010-10-05 | 2016-02-23 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for polarization control in a communication system |
US9219534B2 (en) * | 2010-10-12 | 2015-12-22 | Lg Electronics Inc. | Method and device for signal transmission in a multi-node system |
US8873678B2 (en) * | 2010-11-04 | 2014-10-28 | Intel Mobile Communications GmbH | Method for processing data |
WO2012115583A1 (en) * | 2011-02-25 | 2012-08-30 | Telefonaktiebolaget L M Ericsson (Publ) | Receiver adaptation based on acquired precoder knowledge |
US8675762B2 (en) * | 2011-05-02 | 2014-03-18 | Alcatel Lucent | Method of transforming pre-coded signals for multiple-in-multiple-out wireless communication |
EP2715868B1 (en) | 2011-06-01 | 2018-12-26 | Telefonaktiebolaget LM Ericsson (publ) | A signal combiner, method and computer program product |
US8929473B2 (en) * | 2011-07-28 | 2015-01-06 | Samsung Electronics Co., Ltd. | Combining baseband processing and radio frequency beam steering in wireless communication systems |
CN102439870B (en) | 2011-10-17 | 2014-07-09 | 华为技术有限公司 | Method, device and system for realizing microwave multiple input and multiple output |
US20150078472A1 (en) * | 2012-03-30 | 2015-03-19 | Nokia Solutions And Networks Oy | Feedback Methodology for Per-User Elevation MIMO |
US8619894B1 (en) * | 2012-08-15 | 2013-12-31 | Nokia Siemens Networks Oy | Methods and apparatus for beamforming |
EP2891251B1 (en) | 2012-08-31 | 2021-08-04 | Nokia Solutions and Networks Oy | Methods and apparatus for beamforming |
US9628219B2 (en) * | 2015-07-31 | 2017-04-18 | Huawei Technologies Co., Ltd. | Apparatus and method for transmitting and receiving polarized signals |
US9813269B1 (en) * | 2016-10-13 | 2017-11-07 | Movandi Corporation | Wireless transceiver having a phased array antenna panel for transmitting circularly-polarized signals with modulated angular speed |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070041457A1 (en) * | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US8032080B2 (en) * | 2005-12-08 | 2011-10-04 | Telefonaktiebolaget L M Ericsson (Publ) | Wireless communication MIMO system with repeaters |
US7697626B2 (en) | 2006-01-13 | 2010-04-13 | Interdigital Technology Corporation | Method and apparatus for selecting a beam combination in a MIMO wireless communication system |
US8503402B2 (en) * | 2006-09-14 | 2013-08-06 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangements for load balancing of power amplifiers |
US8107544B2 (en) * | 2007-05-16 | 2012-01-31 | Motorola Mobility, Inc. | Method and apparatus for feedback in closed loop transmitting |
EP2198533B1 (en) * | 2007-10-08 | 2013-12-11 | Telefonaktiebolaget LM Ericsson (publ) | Method and arrangements for signaling control information in a communication system |
US8340235B2 (en) * | 2008-09-25 | 2012-12-25 | Research In Motion Limited | X-MIMO systems with multi-transmitters and multi-receivers |
EP2356789A1 (en) * | 2008-11-12 | 2011-08-17 | Telefonaktiebolaget L M Ericsson (publ) | A method and a transmitter in a wireless communication network |
US8750205B2 (en) * | 2009-08-07 | 2014-06-10 | Texas Instruments Incorporated | Multiple rank CQI feedback for cellular networks |
KR101621376B1 (en) * | 2009-10-06 | 2016-05-31 | 주식회사 팬택자산관리 | Precoding and feedback channel information in wireless communication system |
US8112049B2 (en) * | 2009-12-17 | 2012-02-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel quality handling for precoder override |
US8472547B2 (en) * | 2010-04-07 | 2013-06-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Parameterized codebook with subset restrictions for use with precoding MIMO transmissions |
WO2011127358A1 (en) * | 2010-04-09 | 2011-10-13 | Interdigital Patent Holdings Inc. | Method and apparatus for power control for closed loop transmit diversity and mimo in uplink |
US9106289B2 (en) * | 2010-10-19 | 2015-08-11 | Telefonaktiebolaget L M Ericsson (Publ) | Antenna device and method for precoding data in a multiple-input multiple-output system |
US9007888B2 (en) * | 2010-11-08 | 2015-04-14 | Qualcomm Incorporated | System and method for uplink multiple input multiple output transmission |
-
2009
- 2009-12-15 PL PL09848316T patent/PL2465208T3/en unknown
- 2009-12-15 DK DK09848316.7T patent/DK2465208T3/en active
- 2009-12-15 IN IN1129DEN2012 patent/IN2012DN01129A/en unknown
- 2009-12-15 EP EP17160523.1A patent/EP3197066A1/en not_active Withdrawn
- 2009-12-15 EP EP09848316.7A patent/EP2465208B1/en active Active
- 2009-12-15 US US13/389,480 patent/US8665994B2/en active Active
- 2009-12-15 ES ES09848316.7T patent/ES2632398T3/en active Active
- 2009-12-15 PT PT98483167T patent/PT2465208T/en unknown
- 2009-12-15 HU HUE09848316A patent/HUE035293T2/en unknown
- 2009-12-15 WO PCT/SE2009/051426 patent/WO2011019310A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
HUE035293T2 (en) | 2018-05-02 |
EP2465208A4 (en) | 2015-05-13 |
WO2011019310A1 (en) | 2011-02-17 |
PT2465208T (en) | 2017-07-24 |
DK2465208T3 (en) | 2017-07-17 |
EP3197066A1 (en) | 2017-07-26 |
ES2632398T3 (en) | 2017-09-12 |
US20120140801A1 (en) | 2012-06-07 |
PL2465208T3 (en) | 2017-10-31 |
US8665994B2 (en) | 2014-03-04 |
EP2465208B1 (en) | 2017-04-19 |
EP2465208A1 (en) | 2012-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IN2012DN01129A (en) | ||
WO2013169666A3 (en) | Rank-specific feedback for improved mimo support | |
WO2012027060A3 (en) | Communication station and method for efficiently providing channel feedback for mimo communications | |
WO2011099794A3 (en) | Channel status information feedback apparatus and method for same, base station, and transmission method of said base station | |
WO2010087666A3 (en) | Method of allocating resources for transmitting uplink signal in mimo wireless communication system and apparatus thereof | |
IN2014KN01729A (en) | ||
EP2396938A4 (en) | Precoding codebook and feedback representation | |
WO2012005476A3 (en) | Transmitting device and a method of communicating therewith, and receiving device and a method of communicating therewith | |
JP2012157001A5 (en) | Communication apparatus and communication method | |
WO2011046317A3 (en) | Method and apparatus for mode switching between a multi-cell coordinated communication mode and a single-cell mimo communication mode | |
WO2011126243A3 (en) | Channel state information feedback device, method thereof, and base station | |
EP2183893A4 (en) | System and method for distributed input distributed output wireless communications | |
WO2013068915A3 (en) | Precoding feedback for cross-polarized antennas with magnitude information | |
WO2011041492A3 (en) | Method and apparatus for multi-antenna transmission in uplink | |
EP2430769A4 (en) | Transmission using common and dedicated pilots | |
WO2010067184A3 (en) | Precoding with reduced feedback for coordinated multipoint transmission on the downlink | |
WO2012149178A3 (en) | Open loop spatial processing | |
MX2009001250A (en) | Method, apparatus and system for implementing multi-user virtual multiple-input multiple-output. | |
WO2009047739A3 (en) | Method and system for managing precoding in a multi-user wireless communications system | |
IN2012DN02349A (en) | ||
WO2010093179A3 (en) | Uplink precoding method in 4-tx system | |
WO2010120106A3 (en) | Multi-user mimo transmissions in wireless communication systems | |
WO2010101374A3 (en) | UPLINK PRECODING METHOD IN 4-Tx SYSTEM | |
WO2010126317A3 (en) | Method for setting precoder in open loop mimo system | |
ATE535063T1 (en) | METHOD AND DEVICE FOR PRE-CODING TRANSMITTED DATA SIGNALS IN A WIRELESS MIMO COMMUNICATIONS SYSTEM |