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公开(公告)号：ES2291931T3
公开(公告)日：2008-03-01
申请号：ES04768049
申请日：2004-08-12
Applicant: IPWIRELESS INC
Inventor： TEMPLE-BROWN ADRIAN RICHARD ES
Abstract: Soporte (100) para un módulo electrónico para la conexión a una placa de circuito impreso en un equipo electrónico, estando dispuesto el soporte para alojar el módulo electrónico y presentando una parte dotada de al menos un orificio (120) a través del mismo, en el que el soporte se caracteriza porque: está dispuesto al menos un orificio (120) para proporcionar acceso a través del soporte (100) a la placa (140) de circuito impreso para la verificación; y el soporte (100) está dotado además de una capa de máscara de metalizado sobre una superficie para situar adyacente la placa (140) de circuito impreso.
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公开(公告)号：DE60223181T2
公开(公告)日：2008-02-28
申请号：DE60223181
申请日：2002-11-22
Applicant: IPWIRELESS INC
Inventor： ANDERSON NICHOLAS
IPC: H04B17/00
Abstract: A method, arrangement ( 512 ) and communication receiver ( 500 ) for SNIR estimation of a received signal, by: deriving ( 512 A) an estimation Z of SNIR of the received signal in accordance with the relation Z ^ = [ E { r ( t ) } ] 2 E { r 2 ( t ) } - [ E { r ( t ) } ] 2 , where E represents mean value and r(t) represents the level of the received signal; and correcting ( 512 B, 512 C) the estimation Z to produce a corrected estimation Z based on the relation Z=alpha(Z)xZ, where alpha(Z) represents a correction factor. The estimation may be corrected by calculating the correction factor, retrieving the correction factor from a predetermined table ( 512 B) or retrieving the corrected estimation from a predetermined table. The correction may be effected by adding to a logarithmic estimation a logarithmic correction factor. This provides the advantage of improved performance under conditions of low signal to noise ratio.
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公开(公告)号：AT382210T
公开(公告)日：2008-01-15
申请号：AT02788078
申请日：2002-12-05
Applicant: IPWIRELESS INC
Inventor： ANDERSON NICHOLAS WILLIAM
Abstract: A method for selecting a transport format to transmit messages in a wireless communication system is provided. The method comprises: obtaining status information from a wireless subscriber unit; and modifying a communication channel format in response to said status information.
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公开(公告)号：DE60317780D1
公开(公告)日：2008-01-10
申请号：DE60317780
申请日：2003-04-08
Applicant: IPWIRELESS INC
Inventor： BEALE MARTIN
Abstract: An arrangement and method for channel mapping in a UTRA TDD HSDPA wireless communication system by applying interleaving functions in first (530) and second (540) interleaving means to a bit sequence to produce symbols for mapping to physical channels, the first and second interleaving means being arranged to map symbols from respectively systematic and parity bits in a predetermined scheme, e.g., mapping symbols in a forward direction when a channel has an even index number, and in a reverse direction when a channel has an odd index number. The symbols may comprise bit-pairs, each of a systematic bit and parity bit. Systematic bits are preferably mapped to high reliability bit positions in TDD HSDPA, achieving a performance gain of between 0.2 dB and 0.5 dB. The forwards/reverse mapping allows a degree of interleaving that improves system performance in fading channels or channels disturbed by short time period noise or interference.
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公开(公告)号：DE60223181D1
公开(公告)日：2007-12-06
申请号：DE60223181
申请日：2002-11-22
Applicant: IPWIRELESS INC
Inventor： ANDERSON NICHOLAS
IPC: H04B17/00
Abstract: A method, arrangement ( 512 ) and communication receiver ( 500 ) for SNIR estimation of a received signal, by: deriving ( 512 A) an estimation Z of SNIR of the received signal in accordance with the relation Z ^ = [ E { r ( t ) } ] 2 E { r 2 ( t ) } - [ E { r ( t ) } ] 2 , where E represents mean value and r(t) represents the level of the received signal; and correcting ( 512 B, 512 C) the estimation Z to produce a corrected estimation Z based on the relation Z=alpha(Z)xZ, where alpha(Z) represents a correction factor. The estimation may be corrected by calculating the correction factor, retrieving the correction factor from a predetermined table ( 512 B) or retrieving the corrected estimation from a predetermined table. The correction may be effected by adding to a logarithmic estimation a logarithmic correction factor. This provides the advantage of improved performance under conditions of low signal to noise ratio.
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Patent Agency Ranking
公开(公告)号：GB2432484A
公开(公告)日：2007-05-23
申请号：GB0523710
申请日：2005-11-22
Applicant: IPWIRELESS INC
Inventor： PONNAMPALAM VISHAKAN , DARWOOD PETER BRUCE
Abstract: A cellular communication system, pref 3G TDD or UTRA TDD, comprises a management function having a broadcast mode function; a plurality of wireless serving communication units operably coupled to the management function; and a plurality of wireless subscriber communication units receiving signals from respective wireless serving communication units in an uni-cast mode of operation on a frequency channel comprising a plurality of downlink transmission resources. The broadcast mode function applies a common cell identifier associated with broadcast transmissions from the plurality of wireless serving communication units thereby signalling to the plurality of wireless subscriber communication units that part or all of the transmission resource is to be configured or re-configured for broadcast mode of operation, such as Mobile Broadcast and Multicast Service (MBMS).
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公开(公告)号：GB2405249B
公开(公告)日：2007-03-07
申请号：GB0319769
申请日：2003-08-22
Applicant: IPWIRELESS INC
Inventor： TEMPLE-BROWN ADRIAN RICHARD ES
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公开(公告)号：GB2425917A
公开(公告)日：2006-11-08
申请号：GB0508801
申请日：2005-05-03
Applicant: IPWIRELESS INC
Inventor： ANDERSON NICHOLAS WILLIAM , BEALE MARTIN WARWICK , LEGG PETER JONATHON
Abstract: A User Equipment, UE, (101) of a cellular communication system (100) transmits scheduling assistance data to a base station (105) comprising a scheduler (209) for packet data. The scheduling assistance data relating to packet data communication from the UE (101) is generated by a scheduling assistance data generator (223) coupled to a packet data transmit buffer (221). A first transport channel controller (217) allocates user data to a first transport channel and a retransmission controller (219) operates a retransmission scheme for this transport channel. A second transport channel controller (225) allocates the scheduling assistance data to a signalling transport channel without a retransmission scheme. A transport channel multiplexer (227) combines the two transport channels as multiplexed channels on a single physical resource. The transmission reliabilities for the retransmission and non-retransmission transport channels may be individually optimised.
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公开(公告)号：GB0616241D0
公开(公告)日：2006-09-27
申请号：GB0616241
申请日：2006-08-16
Applicant: IPWIRELESS INC
Abstract: Allocating uplink resources based on downlink traffic in a wireless network is provided. The number of sent segments of transport communication protocol (TCP) data may be counted. In response to the count exceeding a value, a message is sent allocating uplink resources to receive an uplink segment and a message acknowledging sent segments of the TCP data.
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公开(公告)号：GB2418806A
公开(公告)日：2006-04-05
申请号：GB0517128
申请日：2005-08-19
Applicant: IPWIRELESS INC
Inventor： BEALE MARTIN , JONES ALAN E
Abstract: A cellular communication system comprises a base station with functionality for broadcasting a base station duplex capability message to user equipments. The base station duplex capability message defines whether half duplex or full duplex (TDD or FDD) modes are supported in the base station. The message uses a transmission format which is common to a plurality of duplex modes. A user equipment receives the base station duplex capability message and uses a RACH characteristics processor to determine at least one transmit characteristic for an access message in response to the base station duplex capability message. Thus the user equipment can select a base station and a suitable duplexing scheme without having to separately monitor all the duplexing schemes.
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