公开(公告)号：CA2254401A1

公开(公告)日：1999-06-15

申请号：CA2254401

申请日：1998-11-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KUO WEN-YI ,  MEYERS MARTIN HOWARD ,  BI QI ,  WEAVER CARL FRANCIS ,  SANDERS CHARLES ALBERT

IPC: H04W16/00 ,  H04W16/24 ,  H04W36/18 ,  H04Q7/36 ,  H04Q7/38

Abstract: A method for reducing multiple dominant pilots in a CDMA transmission system comprises linking a transceiver element with a nearby base station for transporting signals between the transceiver element and the nearby base station. Transmitting from the transceiver element forward link signals of a nearby sector associated with the nearby base station. An apparatus is also described.

公开(公告)号：DE69836887D1

公开(公告)日：2007-03-08

申请号：DE69836887

申请日：1998-10-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KUO WEN-YI

IPC: H04B1/69 ,  H04B7/26 ,  H04L1/00 ,  H04L5/02 ,  H04Q7/36 ,  H04Q7/38

Abstract: A method for allocating utilization of multiple carriers in a wideband CDMA transmission system first determines the carrier utilization/interference levels for each of the multiple carriers. Based on the carrier utilization/interference level, carrier assignments are allocated on an unequal basis. The allocation of the carrier assignment biases the selection of the carriers away from higher utilized/interfered carriers. An apparatus for implementing the method is also described.

公开(公告)号：DE60024373T2

公开(公告)日：2006-07-13

申请号：DE60024373

申请日：2000-08-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KAMEL RAAFAT EDWARD ,  KUO WEN-YI ,  WEAVER CARL FRANCIS ,  WU XIAO CHENG ,  MEYERS MARTIN HOWARD

IPC: H04B7/26 ,  H04L1/00 ,  H04B7/005 ,  H04L1/08 ,  H04L1/20

Abstract: A base station assembles a frame including information bits at a vocoding rate for downlink transmission over a traffic channel as channel bits at a channel rate. The base station places at least one rate-indicating bit at a beginning of the frame for indicating the vocoding rate. The mobile station evaluates the downlink transmission with consideration of the vocoding rate indicated by the at least one rate-indicating bit. The mobile station can determine the vocoding rate by decoding the beginning of the frame to permit power control in less than one frame duration from initial receipt of the frame at the mobile station.

公开(公告)号：DE60024373D1

公开(公告)日：2006-01-05

申请号：DE60024373

申请日：2000-08-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KAMEL RAAFAT EDWARD ,  KUO WEN-YI ,  WEAVER CARL FRANCIS ,  WU XIAO CHENG ,  MEYERS MARTIN HOWARD

IPC: H04B7/26 ,  H04B7/005 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20

Abstract: A base station assembles a frame including information bits at a vocoding rate for downlink transmission over a traffic channel as channel bits at a channel rate. The base station places at least one rate-indicating bit at a beginning of the frame for indicating the vocoding rate. The mobile station evaluates the downlink transmission with consideration of the vocoding rate indicated by the at least one rate-indicating bit. The mobile station can determine the vocoding rate by decoding the beginning of the frame to permit power control in less than one frame duration from initial receipt of the frame at the mobile station.

公开(公告)号：CA2318722C

公开(公告)日：2004-03-02

申请号：CA2318722

申请日：2000-09-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MEYERS MARTIN HOWARD ,  KUO WEN-YI

IPC: H04B7/26 ,  H04B7/005 ,  H04Q7/36

Abstract: In order to effectively terminate a burst transmission in a wireless system, a method and apparatus determines whether or not a burst transmission from a wireless unit to a base station should be terminated by evaluating at least one criterion related to the operation of the wireless system. Once it is determined that a burst transmission should be terminated, the transmission is terminated by lowering a target signal -to-noise ratio (SIR) by a predetermined amount. By lowering this target SIR, power control bits transmitted from the base stati on to the wireless unit instruct an extreme decrease in power of the burst transmissio n and. quickly act to terminate the burst transmission.

公开(公告)号：DE69805250D1

公开(公告)日：2002-06-13

申请号：DE69805250

申请日：1998-08-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KUMAR SARATH ,  REGE KIRAN M ,  KUO WEN-YI

IPC: H04W36/18 ,  H04Q7/38

Abstract: The present invention increases the success rate of soft handoffs by enhancing the ability of a mobile-telephone to receive a handoff direction message that identifies the traffic channel being assigned to enable a candidate base station to communicate with the mobile-telephone. Specifically, the aforementioned ability of the mobile-telephone is enhanced by using the candidate base station to transmit the handoff direction message on a communication channel belonging to the candidate base station and being listened to by the mobile-telephone. In situations where signals transmitted from active set base stations have a low signal-to-noise ratio at the mobile-telephone, signals transmitted from the candidate base station may have a higher signal-to-noise ratio at the mobile-telephone. In these situations, the transmission of the HD messages from the candidate base station increases the likelihood that a copy of the handoff direction message will be successfully received by the mobile-telephone, thereby enhancing the success rate of soft handoffs.

公开(公告)号：BR0007122A

公开(公告)日：2001-07-24

申请号：BR0007122

申请日：2000-03-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KUO WEN-YI ,  CLOUTIER JOSEPH E ,  PATEL TEJASKUMAR R

IPC: H04L12/28 ,  H04L12/56 ,  H04L29/08 ,  H04W28/04 ,  H04W28/14 ,  H04W28/22 ,  H04W72/04 ,  H04W76/02 ,  H04Q7/22

公开(公告)号：AU2420200A

公开(公告)日：2000-10-12

申请号：AU2420200

申请日：2000-03-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CLOUTIER JOSEPH E ,  KUO WEN-YI ,  RAMAKRISHNA SUDHIR

IPC: H04L12/56 ,  H04L29/08 ,  H04M11/00 ,  H04W12/10 ,  H04W24/00 ,  H04W76/06 ,  H04Q7/30

公开(公告)号：CA2303453A1

公开(公告)日：2000-10-08

申请号：CA2303453

申请日：2000-03-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LU MING ,  KUO WEN-YI

IPC: H04B7/26 ,  H04W36/18 ,  H04W36/30 ,  H04Q7/36 ,  H04B15/00

Abstract: The invention provides a power control methodology that increases the performance and the throughput of wireless communication systems. In particular, the invention provides a reverse jamming prevention process that efficiently utilizes power resources in a communication system such as CDMA. The invention advantageously prevents reverse jamming due to link imbalance that results from differences in forward and reverse link coverage. According to the invention, an evaluation set (eset), which is a super set of the active set of base transceiver stations serving specific users, is determined to prevent the negative effects of reverse jamming. Excessive interference problems in the reverse link, particularly in high-speed wireless systems, are thus avoided.

公开(公告)号：CA2302082A1

公开(公告)日：2000-10-08

申请号：CA2302082

申请日：2000-03-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KUO WEN-YI ,  CHEN TSAO-TSEN

IPC: H04W72/08 ,  H04Q7/34

Abstract: The invention provides a novel burst duration assignment process that increases the performance and improves the throughput of communication systems. In particular, the invention provides an optimal burst duration assignment methodology such that resources are efficiently utilized and maximized in a communication system such as a code division multiple access (CDMA) system. According to the invention, burst duration is assigned based on channel fading fluctuation and user mobility in the communication system. In general, shorter burst duration is assigned to users with higher fading fluctuation and high mobility. Longer burst duration is assigned to users with lower fading fluctuation and low mobility. In a particular embodiment of the invention, the burst assignment is based on a function of duration versus fluctuation.