公开(公告)号：AT450084T

公开(公告)日：2009-12-15

申请号：AT98956104

申请日：1998-10-09

Applicant: QUALCOMM INC

Inventor： HARMS BRIAN ,  BUTLER BRIAN ,  SKINNER GORDON DI

IPC: H04J13/12 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B7/216 ,  H04J13/00

Abstract: A technique for spreading information signals in a spread spectrum communication system to provide increased signal acquisition speed. A first PN spreading code or code set is used to spread information signals along with a second PN spreading code sequence or function. The second PN code is synchronized with the first PN spreading code, but has a larger code period so that each code chip of the second PN code extends over the entire period of the first PN code. The longer period spreading code forms an outer code which helps provide unambiguous beam identification and easily acquired frame timing in the presence of dynamically changing signal path delay, improving signal acquisition.

公开(公告)号：DE69841326D1

公开(公告)日：2010-01-07

申请号：DE69841326

申请日：1998-10-09

Applicant: QUALCOMM INC

Inventor： HARMS BRIAN ,  BUTLER BRIAN ,  SKINNER GORDON DI

IPC: H04J13/12 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B7/216 ,  H04J13/00

Abstract: A technique for spreading information signals in a spread spectrum communication system to provide increased signal acquisition speed. A first PN spreading code or code set is used to spread information signals along with a second PN spreading code sequence or function. The second PN code is synchronized with the first PN spreading code, but has a larger code period so that each code chip of the second PN code extends over the entire period of the first PN code. The longer period spreading code forms an outer code which helps provide unambiguous beam identification and easily acquired frame timing in the presence of dynamically changing signal path delay, improving signal acquisition.

公开(公告)号：AU1995799A

公开(公告)日：1999-05-31

申请号：AU1995799

申请日：1998-11-10

Applicant: QUALCOMM INC

Inventor： ZEHAVI EPHRAIM ,  SKINNER GORDON DI

IPC: H04B1/7073 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/71 ,  H04B7/185 ,  H04B7/26 ,  H04Q7/28 ,  H04B1/707 ,  H04B7/216

Abstract: A system and method for rapidly acquiring timing of an access transmission that uses an access probe that is transmitted in stages. A first stage of the access probe is spread with a short pseudonoise (PN) code pair. A second stage of the access probe is spread with both the short PN code pair and a long PN code. Transmitting the access probe in stages reduces the number of hypotheses, and hence the time, required by a receiver attempting to acquire the access probe.

公开(公告)号：AU1270299A

公开(公告)日：1999-05-03

申请号：AU1270299

申请日：1998-10-09

Applicant: QUALCOMM INC

Inventor： HARMS BRIAN ,  BUTLER BRIAN ,  SKINNER GORDON DI

IPC: H04J13/12 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B7/216 ,  H04J13/00

Abstract: A technique for spreading information signals in a spread spectrum communication system to provide increased signal acquisition speed. A first PN spreading code or code set is used to spread information signals along with a second PN spreading code sequence or function. The second PN code is synchronized with the first PN spreading code, but has a larger code period so that each code chip of the second PN code extends over the entire period of the first PN code. The longer period spreading code forms an outer code which helps provide unambiguous beam identification and easily acquired frame timing in the presence of dynamically changing signal path delay, improving signal acquisition.

公开(公告)号：WO9925079A9

公开(公告)日：1999-08-26

申请号：PCT/US9823848

申请日：1998-11-10

Applicant: QUALCOMM INC

Inventor： ZEHAVI EPHRAIM ,  SKINNER GORDON DI

IPC: H04B1/7073 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/71 ,  H04B7/185 ,  H04B7/26 ,  H04Q7/28 ,  H04B1/707 ,  H04B7/216

CPC classification number: H04B1/70751 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/71 ,  H04B7/2628 ,  H04B2201/70702

Abstract: A system and method for rapidly acquiring timing of an access transmission that uses an access probe (500) that is transmitted in stages. A first stage (560) of the access probe preamble (520) is spread with a short pseudonoise (PN) code pair. A second stage (570) of the access probe preamble (520) is spread with both the short PN code pair and a long PN code. Transmitting the access probe (500) in stages (560, 570) reduces the number of hypotheses, and hence the time, required by a receiver attempting to acquire the access probe (500).

Abstract translation: 一种系统和方法，用于快速获取使用分阶段发送的接入探针（500）的接入传输的定时。 接入探测前导码（520）的第一阶段（560）用短伪噪声（PN）码对来扩展。 接入探测前导码（520）的第二级（570）用短PN码对和长PN码扩展。 以阶段（560,570）传输接入探针（500）减少了试图获取接入探测器（500）的接收器所需的假设的数量，并且因此减少了时间。