公开(公告)号：WO9929051A9

公开(公告)日：1999-09-10

申请号：PCT/US9825491

申请日：1998-12-01

Applicant: QUALCOMM INC ,  BAKER KENNETH R

Inventor： BAKER KENNETH R

IPC: H04B7/10

CPC classification number: H04B7/1555 ,  H04B7/10 ,  Y02D70/00 ,  Y02D70/442 ,  Y02D70/446

Abstract: The invention includes methods and systems to improve the signal diversity between a repeater (105) and a base station (110) in a wireless communication system. A communications device (180) transmits a wireless signal (102). The repeater receives two versions of the wireless signal (102) using a first receiver system (312) and a second receiver (314) system. The repeater (105) transmits two versions of the wireless signal (102) that correspond to the two received versions. The repeater transmits the two versions with different signal polarizations so they can be isolated from one another at the base station (110). The base station receives the two versions from the repeater and isolates each version based on the difference in polarization. The base station (110) processes the two diverse versions (102) to produce a high-quality signal. The use of different polarizations to provide diverse signals between the repeater (105) and the base station (110) lowers signal power requirements and increases the capacity of CDMA systems.

Abstract translation: 本发明包括用于改善无线通信系统中的中继器（105）和基站（110）之间的信号分集的方法和系统。 通信设备（180）发送无线信号（102）。 中继器使用第一接收器系统（312）和第二接收器（314）系统接收无线信号（102）的两个版本。 中继器（105）发送对应于两个接收版本的两个版本的无线信号（102）。 中继器发射具有不同信号极化的两个版本，使得它们可以在基站（110）处彼此隔离。 基站接收来自中继器的两个版本，并基于极化的差异隔离每个版本。 基站（110）处理两个不同版本（102）以产生高质量信号。 在中继器（105）和基站（110）之间使用不同的极化来提供不同的信号降低了信号功率要求并增加了CDMA系统的容量。

公开(公告)号：WO2004102859A3

公开(公告)日：2006-05-26

申请号：PCT/US2004015130

申请日：2004-05-12

Applicant: QUALCOMM INC ,  BAKER KENNETH R

Inventor： BAKER KENNETH R

IPC: H04B10/12 ,  H04B17/40 ,  H04W88/08 ,  H04Q7/22

CPC classification number: H04W88/085 ,  H04B10/25753 ,  H04B10/25758 ,  H04B10/25759

Abstract: Apparatus and methods are disclosed for determining a tolerable propagation delay between a repeater and a base station in a communication system. In one embodiment, a tolerable length of fiber optic cable between a repeater and a base station is determined. More particularly, a desired search window size in time is determined. A maximum fiber optic cable delay value is determined based on the desired search window size. Also, a ratio value of fiber optic cable delay value to fiber optic cable length is then determined. The tolerable length of the fiber optic cable is then determined based on the maximum fiber optic cable delay value and the ratio value.

Abstract translation: 公开了用于确定通信系统中的中继器和基站之间的可容忍的传播延迟的装置和方法。 在一个实施例中，确定在中继器和基站之间的可容忍长度的光纤电缆。 更具体地，确定期望的搜索窗口大小的时间。 基于期望的搜索窗口尺寸确定最大光纤电缆延迟值。 此外，确定光纤电缆延迟值与光纤电缆长度的比值。 然后基于最大光纤电缆延迟值和比值确定光纤电缆的可容忍长度。

公开(公告)号：US3018132A

公开(公告)日：1962-01-23

申请号：US2857860

申请日：1960-05-12

Applicant: BAKER KENNETH R ,  RAHAIM EDWARD J

Inventor： BAKER KENNETH R ,  RAHAIM EDWARD J

IPC: A47C9/10

CPC classification number: A47C1/146

公开(公告)号：CA2508458A1

公开(公告)日：2004-06-24

申请号：CA2508458

申请日：2003-12-04

Applicant: QUALCOMM INC

Inventor： WHEATLEY CHARLES E III ,  BAKER KENNETH R

IPC: H04B7/005 ,  H04B7/155 ,  H04B7/26 ,  H04W52/46 ,  H04B7/185 ,  H04B7/15

Abstract: A method and apparatus are disclosed for setting total reverse link gain between a repeater and a base station (104). The method and apparatus generally comprise setting total reverse link gain (800) between a repeater and a base station comprises determining an operating point for the repeater ; establishing a reverse communication link between the base station and a transceiver device within a coverage area of the repeater; determining if an increase in a reverse link gain is substantially equal to an increase in a noise figure of the base station, using a transmit power of the transceiver device; and adjusting the reverse link gain by an amount based on the operating point and based on a difference in reverse link gain values, if th e increase in the reverse link gain is substantially equal to the increase in the noise figure of the base station, to set the total reverse link gain.

公开(公告)号：HK1029876A1

公开(公告)日：2001-04-12

申请号：HK01100418

申请日：2001-01-16

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/10 ,  H04B7/24 ,  H04B

Abstract: The present invention is a novel and improved method and apparatus for transmitting and receiving code division multiple access (CDMA) signals. In a described embodiment of the invention, the radio frequency (RF) signals are received through a first polarization RF unit and a second polarization RF unit generating right slant samples and left slant samples. The right slant samples and the left slant samples are each searched and multipath processed independently and the resulting sets of soft decision data combined and decoded. In a preferred embodiment of the invention, right slant and left slant instances of the signal are generated and transmitted to increase the likelihood of differently polarized instances of the signal being available at the receive system.

公开(公告)号：NO20002671L

公开(公告)日：2000-07-18

申请号：NO20002671

申请日：2000-05-25

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/26 ,  H04W16/26 ,  H04W36/14 ,  H04Q7/38 ,  H04Q7/36

Abstract: A method and apparatus for providing handoff between two communication systems. The systems can be CDMA systems operating at different frequencies or systems employing different technologies. In the first system, a base station (4) is configured to provide communications to two or more sectors, with at least one sector assigned to a corresponding repeater (8) which provides coverage overlapping that of both systems. As the remote station (6) moves into the coverage area of the repeater (8), the pilot signal of the repeater (8) is identified, measured and sent to the first system. If the measured pilot signal is above a predetermined add threshold, the repeater (8) is added to the active set of the remote station. The first system can handoff the remote station (6) to the second system: (1) upon initiation of a soft handoff by the base station of the first system; (2) if the pilot signal strength of the repeater (8), as measured by the remote station (6), exceeds a predetermined handoff threshold; (3) if the base station (4) of the first system is dropped from the active set of the remote station (6); (4) if the repeater of the first system is dropped from the active set of the remote station (6); or (5) if the base station (4) and repeater (8) of the first system are dropped from the active set of the remote station (6).

公开(公告)号：FI20001211A

公开(公告)日：2000-07-18

申请号：FI20001211

申请日：2000-05-19

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/26 ,  H04W16/26 ,  H04W36/14 ,  H04Q

Abstract: A method and apparatus for providing handoff between two communication systems. The systems can be CDMA systems operating at different frequencies or systems employing different technologies. In the first system, a base station (4) is configured to provide communications to two or more sectors, with at least one sector assigned to a corresponding repeater (8) which provides coverage overlapping that of both systems. As the remote station (6) moves into the coverage area of the repeater (8), the pilot signal of the repeater (8) is identified, measured and sent to the first system. If the measured pilot signal is above a predetermined add threshold, the repeater (8) is added to the active set of the remote station. The first system can handoff the remote station (6) to the second system: (1) upon initiation of a soft handoff by the base station of the first system; (2) if the pilot signal strength of the repeater (8), as measured by the remote station (6), exceeds a predetermined handoff threshold; (3) if the base station (4) of the first system is dropped from the active set of the remote station (6); (4) if the repeater of the first system is dropped from the active set of the remote station (6); or (5) if the base station (4) and repeater (8) of the first system are dropped from the active set of the remote station (6).

公开(公告)号：BR9709337A

公开(公告)日：1999-08-10

申请号：BR9709337

申请日：1997-05-22

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSEY A JR ,  ZIV NOAM A ,  HOLCMAN TONI L ,  MUNSINGER DAVID B ,  BAKER KENNETH R

IPC: H04W24/02 ,  H04W36/12 ,  H04W36/14 ,  H04Q7/22 ,  H04Q7/38

Abstract: In a communications network, a network user communicates using a remote unit with another user via at least one base station. The network is comprised of first and second mobile switching control stations respectively controlling communications through a first set of base stations including a first base station and through a second set of base stations including a second base station. To direct communications between the remote unit and the first and second base stations the first base station measures a round trip delay of an active communication signal between the first base station and the remote unit. The remote unit measures a first phase offset of a pilot signal received from a first candidate base station and reports it to the first mobile switching center via the first base station. The first mobile switching center calculates a candidate round trip delay between the remote unit and the first candidate base station based on the first phase offset and the round trip delay of the active communication signal. A active communication control unit accesses a measurement directed hard handoff table to determine a location of the remote unit based on the round trip delay corresponding to the first active communication signal and the candidate round trip delay.

公开(公告)号：AU1707399A

公开(公告)日：1999-06-16

申请号：AU1707399

申请日：1998-12-01

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/10

公开(公告)号：NO327951B1

公开(公告)日：2009-10-26

申请号：NO20002671

申请日：2000-05-25

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/26 ,  H04W16/26 ,  H04W36/14

Abstract: A method and apparatus for providing handoff between two communication systems. The systems can be CDMA systems operating at different frequencies or systems employing different technologies. In the first system, a base station (4) is configured to provide communications to two or more sectors, with at least one sector assigned to a corresponding repeater (8) which provides coverage overlapping that of both systems. As the remote station (6) moves into the coverage area of the repeater (8), the pilot signal of the repeater (8) is identified, measured and sent to the first system. If the measured pilot signal is above a predetermined add threshold, the repeater (8) is added to the active set of the remote station. The first system can handoff the remote station (6) to the second system: (1) upon initiation of a soft handoff by the base station of the first system; (2) if the pilot signal strength of the repeater (8), as measured by the remote station (6), exceeds a predetermined handoff threshold; (3) if the base station (4) of the first system is dropped from the active set of the remote station (6); (4) if the repeater of the first system is dropped from the active set of the remote station (6); or (5) if the base station (4) and repeater (8) of the first system are dropped from the active set of the remote station (6).