[go: up one dir, main page]

Pinho et al., 2001 - Google Patents

Link Level Evaluation Platform with Space-time Processing for UMTS TDD

Pinho et al., 2001

View PDF
Document ID
9534869047338873287
Author
Pinho P
Morgado A
Gonçalves L
Fernandes J
Gameiro A
Publication year
Publication venue
Proc. of Conftele

External Links

Snippet

This communication describes the architecture and development of link level evaluation platform intended to evaluate advanced signal processing schemes for the Universal Mobile Telecommunications System (UMTS), Time Division Duplex (TDD), Up Link (UL) mode. It …
Continue reading at www.academia.edu (PDF) (other versions)

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7115Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • H04B1/7107Subtractive interference cancellation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure
    • H04B1/7093Matched filter type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0604Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching with predefined switching scheme
    • H04B7/0606Random or pseudo-random switching scheme
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS

Similar Documents

Publication Publication Date Title
US20030189972A1 (en) Method and device for interference cancellation in a CDMA wireless communication system
US7623602B2 (en) Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity
CA2258376C (en) Cdma multiuser receiver featuring a combination of array antenna and multiuser cancelers
US8121176B2 (en) Iterative interference canceler for wireless multiple-access systems with multiple receive antennas
US20040028121A1 (en) Receiver processing systems
EP2162994B1 (en) Efficient method for forming and sharing impairment covariance matrix
EP1371146B1 (en) Interference rejection in a receiver
AU2778100A (en) Methods and apparatus for downlink diversity in CDMA using Walsh codes
JP2002535913A (en) Apparatus and method for interference cancellation in spread spectrum communications
US8369384B2 (en) Method and system for processing signals utilizing a programmable interference suppression module
JP2004509534A (en) Smart antenna without phase calibration for CDMA reverse link
CN101375517B (en) Apparatus and method for controlling dynamic range of weight vectors according to combining methods in a mobile station equipped with multiple antennas in high rate packet data system using code division multiple access scheme
US8503588B2 (en) Method and system for compensation of interference cancellation delay
EP1069707A1 (en) Transmit diversity transmitter and receiver for radio communications systems
US20050276314A1 (en) Interference eliminating apparatus and method
US6831956B1 (en) Wireless communications system with combining of multiple paths selected from sub-windows in response to the primary synchronization channel
US20030176169A1 (en) Interference cancellation method in radio system
JP2000315966A (en) Space time transmission diversity for tdd/wcdma
US8855172B2 (en) Non-redundant equalization
Pinho et al. Link Level Evaluation Platform with Space-time Processing for UMTS TDD
Potman et al. Tradeoffs between spreading factor, symbol constellation size and rake fingers in UMTS
Lenardi Advanced mobile receivers and downlink channel estimation for 3G UMTS-FDD WCDMA systems
US7756191B2 (en) Deconvolution searcher for wireless communication system
Baykas et al. Generalized decorrelating discrete-time rake receiver
Vidal et al. Enhanced MDIR receiver for space-time dispersive channels