公开(公告)号：WO1996004716A1

公开(公告)日：1996-02-15

申请号：PCT/US1995008659

申请日：1995-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  SUTTON, Todd, R.

IPC: H04B01/707

CPC classification number: H04B1/70754 ,  H04B1/70755 ,  H04B1/7077 ,  H04B2201/70701

Abstract: A novel and improved method of acquisition in a spread spectrum communication system is presented. In the present invention, a large window of PN chip offset hypotheses are searched which are generated by a PN sequence generator (20) under the control of a searcher controller (18). The energy of the despread sequence which is despread by a despreader (6) is found that might indicate the presence of the pilot signal in a threshold comparer (16) having one of the chip offsets of the large search window, then a search of a subset of offset hypotheses, or small window, is searched under the control of searcher controller (18).

Abstract translation: 提出了一种在扩频通信系统中采集的新颖且改进的采集方法。 在本发明中，在搜索器控制器（18）的控制下，搜索由PN序列发生器（20）产生的PN码片偏移假设的大窗口。 发现由解扩器（6）去扩展的解扩序列的能量可以在具有大搜索窗口的码片偏移之一的阈值比较器（16）中指示导频信号的存在，然后搜索 在搜索器控制器（18）的控制下搜索偏移假设的子集或小窗口。

公开(公告)号：WO1997041698A3

公开(公告)日：1997-11-06

申请号：PCT/US1997007412

申请日：1997-05-01

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  LEE, Kuo-Chun ,  KARMI, Gadi ,  MOHANTY, Bibhu ,  SUTTON, Todd, R. ,  ZIV, Noam, A.

IPC: H04Q07/22

公开(公告)号：EP0896778A2

公开(公告)日：1999-02-17

申请号：EP97922608.0

申请日：1997-05-01

Applicant: QUALCOMM INCORPORATED

Inventor： LEE, Kuo-Chun ,  KARMI, Gadi ,  MOHANTY, Bibhu ,  SUTTON, Todd, R. ,  ZIV, Noam, A.

IPC: H04J13 ,  H04W36

CPC classification number: H04W36/0066 ,  H04W36/18 ,  H04W36/22

Abstract: A novel and improved method and apparatus for performing an inter-system soft handoff is described. In accordance with the present invention, when a subscriber unit crosses from a first cellular system to a second cellular system, a base station controller (20) determines if sufficient network resources are available to conduct an inter-system soft handoff. If so, the base station controller (20) generates a set of signaling messages that cause a call processing resource to be allocated, and for the call to be processed at the second cellular system. The base station controller (20) then perform data-selection and data-broadcast for the call by transmitting data to the subscriber unit (28) by way of the second cellular system as well as via one or more base stations to which the base station controller (20) is directly coupled. The determination as to whether sufficient network resources are available to conduct the inter-system soft handoff is based on the type of connection that exists between the first cellular system and the second cellular system, the number of inter-system calls being conducted, and the frame offset of the call currently being processed.

公开(公告)号：WO2013158923A9

公开(公告)日：2013-10-24

申请号：PCT/US2013/037239

申请日：2013-04-18

Applicant: QUALCOMM INCORPORATED

Inventor： SUTTON, Todd, R.

IPC: G06F11/00

公开(公告)号：EP0721703A1

公开(公告)日：1996-07-17

申请号：EP95926654.0

申请日：1995-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： SUTTON, Todd, R.

IPC: H04B1 ,  H04J13

CPC classification number: H04B1/70754 ,  H04B1/70755 ,  H04B1/7077 ,  H04B2201/70701

Abstract: A novel and improved method of acquisition in a spread spectrum communication system is presented. In the present invention, a large window of PN chip offset hypotheses are searched which are generated by a PN sequence generator (20) under the control of a searcher controller (18). The energy of the despread sequence which is despread by a despreader (6) is found that might indicate the presence of the pilot signal in a threshold comparer (16) having one of the chip offsets of the large search window, then a search of a subset of offset hypotheses, or small window, is searched under the control of searcher controller (18).

公开(公告)号：EP0721703B1

公开(公告)日：2004-09-22

申请号：EP95926654.5

申请日：1995-07-10

Applicant: QUALCOMM Incorporated

Inventor： SUTTON, Todd, R.

IPC: H04B1/707

CPC classification number: H04B1/70754 ,  H04B1/70755 ,  H04B1/7077 ,  H04B2201/70701

公开(公告)号：EP0896778B1

公开(公告)日：2007-06-20

申请号：EP97922608.1

申请日：1997-05-01

Applicant: QUALCOMM INCORPORATED

Inventor： LEE, Kuo-Chun ,  KARMI, Gadi ,  MOHANTY, Bibhu ,  SUTTON, Todd, R. ,  ZIV, Noam, A.

IPC: H04Q7/22 ,  H04Q7/38 ,  H04Q7/30

CPC classification number: H04W36/0066 ,  H04W36/18 ,  H04W36/22

Abstract: A novel and improved method and apparatus for performing an inter-system soft handoff is described. In accordance with the present invention, when a subscriber unit crosses from a first cellular system to a second cellular system, a base station controller (20) determines if sufficient network resources are available to conduct an inter-system soft handoff. If so, the base station controller (20) generates a set of signaling messages that cause a call processing resource to be allocated, and for the call to be processed at the second cellular system. The base station controller (20) then perform data-selection and data-broadcast for the call by transmitting data to the subscriber unit (28) by way of the second cellular system as well as via one or more base stations to which the base station controller (20) is directly coupled. The determination as to whether sufficient network resources are available to conduct the inter-system soft handoff is based on the type of connection that exists between the first cellular system and the second cellular system, the number of inter-system calls being conducted, and the frame offset of the call currently being processed.

公开(公告)号：EP0916207A1

公开(公告)日：1999-05-19

申请号：EP98913380.0

申请日：1998-03-31

Applicant: QUALCOMM INCORPORATED

Inventor： SUTTON, Todd, R.

IPC: H04J3 ,  H04L1 ,  H04L7

CPC classification number: H04J3/062 ,  H04L1/22

Abstract: First and second data sources (106A, 106B) transmit a data signal (TXD) on a data connection and a transmit clock signal (TXC) on a clock connection. The data signal is clocked into a FIFO (226) resident in network interface equipment (110) in response to the transmit clock signal, and out of the FIFO to the network in response to a reference clock signal. The FIFO (226) generates a status signal indicating how full it is and a local clock generator (228) generates the transmit clock signal in response to this status signal. The first and a second data sources (106A, 106B) hold the data signal and transmit clock signal high for longer than a single period of the reference clock signal when switching between them. The local clock generator (228) alters an average rate of the transmit clock signal in response to the status indication signal from the FIFO in order to keep it half-full.