公开(公告)号：EP0818084B1

公开(公告)日：2004-07-28

申请号：EP96910643.4

申请日：1996-03-29

Applicant: QUALCOMM Incorporated

Inventor： TIEDEMANN, Edward, G., Jr. ,  ODENWALDER, Joseph, P. ,  WHEATLEY, Charles, E., III ,  PADOVANI, Roberto

IPC: H04B7/005

CPC classification number: H04W52/362 ,  H04W52/08 ,  H04W52/20 ,  H04W52/228 ,  H04W52/247 ,  H04W52/28 ,  H04W52/282 ,  H04W52/283 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: A method and apparatus for controlling transmission power in a mobile communication system is disclosed. The method disclosed provides for a closed-loop power control method. A mobile station (30) provides information on the quality of the signal received from the base station (50), and the base station (50) responds by adjusting the power allocated to that user in a shared base station signal. The transmission power is adjusted initially by a large increment and then ramped down at an increasingly decreasing rate. The mobile station (30) also provides information to the base station (50) as to its relative velocity and the base station (50) adjusts its transmission power in accordance with this velocity information.

公开(公告)号：EP0680675B1

公开(公告)日：2004-02-04

申请号：EP95902697.2

申请日：1994-11-22

Applicant: QUALCOMM Incorporated

Inventor： WHEATLEY, Charles, E., III ,  PADOVANI, Roberto ,  ZEHAVI, Ephraim

IPC: H04B7/005 ,  H04L1/00

CPC classification number: H04L1/0059 ,  H03M13/23 ,  H04L1/0015 ,  H04L1/0019 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/08 ,  H04W52/20 ,  H04W52/267

公开(公告)号：EP1378133A2

公开(公告)日：2004-01-07

申请号：EP02721521.9

申请日：2002-03-22

Applicant: QUALCOMM INCORPORATED

Inventor： BENDER, Paul ,  JALALI, Ahmad ,  JUDSON, Bruce ,  PADOVANI, Roberto ,  WHEATLEY, Charles, E., III

IPC: H04Q7/00

CPC classification number: H04W16/12 ,  H04B7/2618 ,  H04W16/02

Abstract: A 'time multiplexed' transmission scheme capable of reducing the amount of interference from other cells operated at the same frequency band. Each cell of a system transmits in designated time intervals (e.g., time slots) during which other interfering cells may be prevented from transmitting. By temporarily 'blanking' transmissions from interfering cells during the designated time slots, the amount of interference from these cells is reduced. The improved signal quality may support transmission at a desired or higher data rate, which may not be possible without cell blanking. In one variant, transmissions from the cells are staggered over different time slots. A set of one or more cells may be designated to transmit in each of a number of slot phases. The cells transmit in a staggered manner on theses phases to reduce interference. The transmission scheme may be used for a various channel types (e.g., a control channel) and applications.

公开(公告)号：EP0720808B1

公开(公告)日：2003-10-01

申请号：EP95927333.5

申请日：1995-07-21

Applicant: QUALCOMM Incorporated

Inventor： PADOVANI, Roberto ,  WEAVER, Lindsay, A., Jr. ,  BENDER, Paul, E.

IPC: H04Q7/38

CPC classification number: H04W52/143 ,  H04W36/06 ,  H04W52/04 ,  H04W52/245 ,  H04W52/246 ,  H04W52/40

公开(公告)号：EP0500689B2

公开(公告)日：2003-03-05

申请号：EP90916945.0

申请日：1990-11-05

Applicant: QUALCOMM Incorporated

Inventor： GILHOUSEN, Klein, S. ,  PADOVANI, Roberto ,  WHEATLEY, Charles, E., III

IPC: H04B7/005

CPC classification number: H04W52/0245 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  H04W52/52 ,  Y02D70/21

Abstract: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so as to arrive at the cell-site at a desired power level.

公开(公告)号：EP0717891B9

公开(公告)日：2002-10-09

申请号：EP94927369.2

申请日：1994-09-08

Applicant: QUALCOMM INCORPORATED

Inventor： GARDNER, William, R. ,  JACOBS, Paul, E. ,  PADOVANI, Roberto ,  ZIV, Noam, A. ,  LAM, S., Katherine ,  DeJACO, Andrew, P.

IPC: H04B7/26 ,  H04L1/12 ,  H04Q7/38

CPC classification number: H04W28/22 ,  G10L19/22 ,  G10L19/24 ,  H04B7/2659 ,  H04L1/0014 ,  H04L1/0022 ,  H04L1/0025 ,  H04L47/10 ,  H04L47/14 ,  H04L47/263 ,  H04L47/33 ,  H04L47/38 ,  H04W24/00

Abstract: A method and apparatus for controlling the data rates for communications to and from a base station (2) and a plurality of remote users (4). The usage of the communications resource whether the forward link resource, from base station (2) to remote users (4), or reverse link resource, from remote users (4) to base station (2), is measured. The measured usage value is compared against at least one predetermined threshold value and the data rates of communications or a subset of communications on said communications resource is modified in accordance with said comparisons.

公开(公告)号：EP1216523A1

公开(公告)日：2002-06-26

申请号：EP00966999.5

申请日：2000-09-27

Applicant: QUALCOMM INCORPORATED

Inventor： PADOVANI, Roberto ,  JUDSON, Bruce, A.

IPC: H04B7/005

CPC classification number: H04W52/343 ,  H04W52/08 ,  H04W52/221 ,  H04W52/283 ,  H04W52/36

Abstract: To determine a level of loading, the system enters a period of silence during which a designated remote unit continues to transmit but other transmissions are interrupted. The base station and designated remote unit perform closed loop power control on a reverse link signal. A first series of power control commands and a first corresponding transmit gain adjustment value is stored. Normal operation is resumed. A second series of commands and a second corresponding transmit gain adjustment value is stored. A level of loading is determined based upon the first and second transmit gain adjustment values. In another embodiment in the period of silence all the remote stations cease transmission, and the base station measures a power of RF test signal injected into base station receiver. In yet another embodiment in the period of silence all the remote stations cease transmission. And the base station measures a value reflecting gain of an AGC circuit of the base station's receiver. Second measured values.

公开(公告)号：EP0956732A2

公开(公告)日：1999-11-17

申请号：EP98903590.0

申请日：1998-01-27

Applicant: QUALCOMM INCORPORATED

Inventor： PADOVANI, Roberto ,  QUICK, Roy, F.

IPC: H04J13 ,  H04B7 ,  H04W36 ,  H04W48

CPC classification number: H04W36/18 ,  H04W48/20

Abstract: A method and apparatus for providing soft hand-off in a mobile communication system. In current systems, members of an active set of base stations (4, 4A, 4B, 4C) are determined by comparing measured pilot energy with fixed thresholds. The value of providing a redundant communication link to a mobile station (2) primarily depends on the energy of other signals being provided to the mobile station (2). In the present invention, the signal strength of each signal transmitted by other base stations (4, 4A, 4B, 4C) in communication with a mobile station (2) is considered when determining whether to add a base station to the set of base stations (4, 4A, 4B, 4C) in communication with the remote station. A base station is added only if the signal received from that base station provides sufficient added value to justify the impact on system capacity.

公开(公告)号：EP0917809A2

公开(公告)日：1999-05-26

申请号：EP97938147.0

申请日：1997-08-06

Applicant: QUALCOMM INCORPORATED

Inventor： PADOVANI, Roberto

IPC: H04W36

CPC classification number: H04W36/30 ,  H04W36/0066 ,  H04W36/18

Abstract: In a communications network, a network user communicates through a remote unit (155) via at least one base station (150). The communications network includes a first mobile switching center (100) for controlling communications through a first set of base stations (102) and a second mobile switching center (112) for controlling communications through a second set of base stations (108). The network also includes a service providing base station (102D) controlled by the first mobile switching center (100) and providing service to a first transition coverage area using a first pseudorandom noise code. The first transition coverage area defines a boundary between a first system (102) controlled by the first mobile switching center (100) and a second system (108) controlled by the second mobile switching center (112). The network further includes a passage providing base station controlled (108D) by the second mobile switching center (112) for providing service to the first transition area using a second pseudorandom noise code offset in time by a first amount from the first pseudorandom noise code. The passage providing base station provides service to a remote unit (155) only if the remote unit (155) is entering the first transition coverage area while exiting the second system or is about to exit the first transition coverage area while entering the second system.

公开(公告)号：EP0680675A1

公开(公告)日：1995-11-08

申请号：EP95902697.0

申请日：1994-11-22

Applicant: QUALCOMM INCORPORATED

Inventor： WHEATLEY, Charles, E., III ,  PADOVANI, Roberto ,  ZEHAVI, Ephraim

IPC: H04B ,  H04J13 ,  H03M13 ,  H04B7 ,  H04L1

CPC classification number: H04L1/0059 ,  H03M13/23 ,  H04L1/0015 ,  H04L1/0019 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/08 ,  H04W52/20 ,  H04W52/267

Abstract: The process of the present invention enables a communication link to have a higher data rate input signal while maintaining a constant data rate output signal. The method first convolutionally encodes the input data signal to produce a plurality of convolutionally encoded signals. Each of the convolutionally encoded signals are comprised of a plurality of data symbols. Each data symbol is repeated a predetermined number of times to produce a code repetition data sequence at a predetermined and fixed rate. The data sequence is then punctured such that symbols in predetermined locations of the data sequence are deleted thus generating a data sequence at a predetermined and fixed rate which is lower than that of the original data sequence. The encoded signals with the repeated data symbols are multiplexed to produce a data sequence.

Abstract translation: 本发明的功率控制过程使得移动无线电话机能够在所需的功率输出上持续更新基站。 基站以特定速率向移动台发送帧。 如果移动台正确接收并解码帧，则在下一帧中设置要发送到基站的功率控制位。 基于接收功率控制比特的错误率，基站确定是增加还是降低发射功率。