公开(公告)号：NO20014538L

公开(公告)日：2001-10-19

申请号：NO20014538

申请日：2001-09-18

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  OZLUTURK FATIH M ,  SHIN SUNG-HYUK

IPC: H04B1/04 ,  H04B7/005 ,  H04B7/216 ,  H04B7/26 ,  H04J3/00 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/18 ,  H04W52/20 ,  H04W52/22 ,  H04W52/24 ,  H04W52/50 ,  H04W52/54

Abstract: Outer loop/weighted open loop power control controls transmission power levels in a spread spectrum time division duplex communication station. A first communication station (110) transmits a communication to a second communication station including target adjustment information generated at the first station on the basis of measured error rates of communications from the second station to the first station. The second station receives the communication and measures its received power level. Based on in part the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the second station to the first station is based on in part weighting the path loss estimate in response to the estimate's quality and based on the receive target adjusted by the target adjustment information transmitted from the first station.

公开(公告)号：HK1033620A1

公开(公告)日：2001-09-07

申请号：HK01103835

申请日：2001-06-04

Applicant: INTERDIGITAL TECH CORP

Inventor： REGIS ROBERT T ,  OZLUTURK FATIH M ,  KAZAKEVICH LEONID ,  TURNER RICHARD ,  POLAN JEFFREY ,  DICK STEPHEN G

IPC: H04B7/26 ,  H04W88/08 ,  H04B ,  H04Q

Abstract: The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.

公开(公告)号：ID28838A

公开(公告)日：2001-07-05

申请号：ID20010860

申请日：1999-01-27

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH M

IPC: H04B1/10 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/707

Abstract: An apparatus for code division multiple access (CDMA) wireless communication comprising a receiver configured to receive a CDMA signal that includes a desired traffic signal and a second signal, the desired traffic signal being spread with a desired traffic spreading code and the second signal being spread with a second spreading code; means for generating a second signal cancellation component including means for generating a second signal strength by despreading the CDMA signal based on the second spreading code; means for generating a second signal cancellation factor by selectively combining the second signal spreading code and the desired traffic spreading code; and means for combining the second signal strength and the second signal cancellation factor to generate the second signal cancellation component; means for generating a despread desired traffic signal by despreading the CDMA signal based on the desired traffic spreading code; and means for combining the despread desired traffic signal and the second signal cancellation component to cancel second signal noise from the despread desired traffic signal.

公开(公告)号：HK1025690A1

公开(公告)日：2000-11-17

申请号：HK00103672

申请日：2000-06-19

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH M

IPC: H04B1/707 ,  H04L27/18 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04B

Abstract: The present invention provides a spread spectrum transmitter comprising a spread spectrum encoder for encoding digital data to produce a spread spectrum signal and means for transmitting said signal, characterized in that the spread spectrum encoder includes a code generator incorporating an apparatus for generating complex four-phase code division multiple access (CDMA) codes, the apparatus comprising: a plurality of flip flops, an accumulator having a first input for receiving an output from said plurality of flip flops and a second input for receiving a quotient of a parameter M divided by a parameter N, wherein M and N are integers and wherein M is relatively prime to N; said accumulator combines data received via said first and second inputs and outputs the combined data to said flip flops; an extractor extracting a first bit and a second bit from the flip flops; and means for converting the extracted first bit and second bit to I and Q values.

公开(公告)号：AU4174300A

公开(公告)日：2000-10-09

申请号：AU4174300

申请日：2000-03-22

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  OZLUTURK FATIH M ,  SHIN SUNG-HYUK

IPC: H04B1/04 ,  H04B7/005 ,  H04B7/216 ,  H04B7/26 ,  H04J3/00 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/18 ,  H04W52/20 ,  H04W52/22 ,  H04W52/24 ,  H04W52/50 ,  H04W52/54

Abstract: Outer loop/weighted open loop power control controls transmission power levels in a spread spectrum time division duplex communication station. A first communication station (110) transmits a communication to a second communication station including target adjustment information generated at the first station on the basis of measured error rates of communications from the second station to the first station. The second station receives the communication and measures its received power level. Based on in part the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the second station to the first station is based on in part weighting the path loss estimate in response to the estimate's quality and based on the receive target adjusted by the target adjustment information transmitted from the first station.

公开(公告)号：AU2588200A

公开(公告)日：2000-08-07

申请号：AU2588200

申请日：1999-12-07

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH M ,  DICK STEPHEN G ,  KAZAKEVICH LEONID

IPC: H03C3/02 ,  H03C5/00 ,  H04L27/00 ,  H04L27/01 ,  H04L27/18 ,  H04L27/22

Abstract: The present invention involves a system (61) for balancing a signal having I and Q components (63I, 63Q), characterized in that the system comprises: means for cross correlating (75) the I and Q components (63I, 63Q) to produce a cross correlation product (77); means for adjusting (93I, 93Q) a gain of each I and Q component (63I, 63Q) in accordance with said cross correlation product (77); and means for adding (69I, 69Q) the I component (63I) with an adjusted Q component (95I), and the Q component (63Q) with an adjusted I component (95Q) to produce a phase-balanced signal (73I, 73Q).

公开(公告)号：AU2480199A

公开(公告)日：2000-05-08

申请号：AU2480199

申请日：1999-01-27

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH M

IPC: H04B1/10 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/707

Abstract: An apparatus for code division multiple access (CDMA) wireless communication comprising a receiver configured to receive a CDMA signal that includes a desired traffic signal and a second signal, the desired traffic signal being spread with a desired traffic spreading code and the second signal being spread with a second spreading code; means for generating a second signal cancellation component including means for generating a second signal strength by despreading the CDMA signal based on the second spreading code; means for generating a second signal cancellation factor by selectively combining the second signal spreading code and the desired traffic spreading code; and means for combining the second signal strength and the second signal cancellation factor to generate the second signal cancellation component; means for generating a despread desired traffic signal by despreading the CDMA signal based on the desired traffic spreading code; and means for combining the despread desired traffic signal and the second signal cancellation component to cancel second signal noise from the despread desired traffic signal.

公开(公告)号：AU2477699A

公开(公告)日：1999-11-29

申请号：AU2477699

申请日：1999-01-27

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH M ,  MESECHER DAVID K ,  JACQUES ALEXANDER M

IPC: H04L27/02 ,  H04B1/707 ,  H04B1/7073 ,  H04B1/7075 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115

Abstract: The present invention relates to a receiver for receiving at least one of a plurality of channels in a communication system, the receiver comprising: an adaptive matched filter (79) for receiving communication signals and producing a filtered signal by using a weighting signal; a rake receiver (101) for receiving communication signals and a pseudo-noise signal (931) generated for a selected channel and producing a filter weighting signal; means for defining the filter weighting signal with a correction signal (119), said correction signal to produce the weighting signal used by said adaptive matched filter; a channel despreader (85) for said selected channel coupled to said adaptive matched filter output for despreading said filtered signal using the pseudo-noise signal generated for said selected channel to produce a despread channel signal (95) of said selected channel; a pilot channel despreader (87) for a pilot channel coupled to said adaptive matched filter output for despreading said filtered signal using a pseudo-noise signal generated for said pilot channel to produce a despread pilot signal (135) of said pilot channel; a hard decision processor (121) in association with a complex conjugate processor (123) for receiving the despread channel signal of said selected channel and producing said correction signal; and means (157) for producing a phase correction signal (183) utilizing at least said despread pilot signal, said phase correction signal being applied to produce phase-corrected channel signals.

公开(公告)号：AU3356199A

公开(公告)日：1999-10-11

申请号：AU3356199

申请日：1999-03-17

Applicant: INTERDIGITAL TECH CORP

Inventor： POLAN JEFFREY ,  DICK STEPHEN G ,  KAZAKEVICH LEONID ,  OZLUTURK FATIH M ,  REGIS ROBERT T ,  TURNER RICHARD

IPC: H04B7/26 ,  H04W88/08 ,  H04Q7/36

Abstract: The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.

公开(公告)号：CA2324083A1

公开(公告)日：1999-09-23

申请号：CA2324083

申请日：1999-03-17

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH M ,  REGIS ROBERT T ,  TURNER RICHARD ,  KAZAKEVICH LEONID ,  DICK STEPHEN G ,  POLAN JEFFREY

IPC: H04B7/26 ,  H04W88/08 ,  H04Q7/36

Abstract: The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omnidirectional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.