公开(公告)号：EP1597649A4

公开(公告)日：2011-05-11

申请号：EP04712392

申请日：2004-02-18

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  RICHARDSON TOM ,  LI JUNYI

IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04L1/0057 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1819 ,  H04L2001/125

公开(公告)号：EP1609280A4

公开(公告)日：2011-01-05

申请号：EP04713434

申请日：2004-02-20

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  FAN JOHN L ,  LI JUNYI

IPC: H04B7/005 ,  H04B17/00 ,  H04W16/24 ,  H04W52/24 ,  H04W52/32 ,  H04Q7/00 ,  H04B1/00 ,  H04B7/185 ,  H04B7/204

CPC classification number: H04W52/24 ,  H04B7/0491 ,  H04B17/24 ,  H04B17/309 ,  H04W16/24 ,  H04W52/32 ,  H04W52/325

Abstract: Pilot signal transmission sequences and methods are described for use in a multi-sector cell. Pilots in different sectors are transmitted at different known power levels. In adjacent sectors a pilot is transmitted while no pilot is transmitted in the adjoining sector. This represents transmission of a NULL pilot signal. A cell NULL is also supported in which NULL pilots are transmitted in each sector of a cell at the same time. Multiple pilot signal measurements are made. At least two channel quality indicator values are generated from measurements corresponding to at least two pilot signals of different power levels. The two values are transmitted back to the base station which uses both values to determine the transmit power required to achieve a desired SNR at the wireless terminal. The wireless terminal also reports information indicating its location to a sector boundary.

公开(公告)号：EP1597852A4

公开(公告)日：2011-01-05

申请号：EP04713438

申请日：2004-02-20

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  FAN JOHN L ,  LI JUNYI

IPC: H04B7/005 ,  H04B17/00 ,  H04W16/24 ,  H04W52/24 ,  H04W52/32

CPC classification number: H04W52/24 ,  H04B7/0491 ,  H04B17/24 ,  H04B17/309 ,  H04W16/24 ,  H04W52/32 ,  H04W52/325

Abstract: Pilot signal transmission sequences and methods are described for use in a multi-sector cell. Pilots in different sectors are transmitted at different known power levels. In adjacent sectors a pilot is transmitted while no pilot is transmitted in the adjoining sector. This represents transmission of a NULL pilot signal. A cell NULL is also supported in which NULL pilots are transmitted in each sector of a cell at the same time. Multiple pilot signal measurements are made. At least two channel quality indicator values are generated from measurements corresponding to at least two pilot signals of different power levels. The two values are transmitted back to the base station which uses both values to determine the transmit power required to achieve a desired SNR at the wireless terminal. The wireless terminal also reports information indicating its location to a sector boundary.

公开(公告)号：EP1576838A4

公开(公告)日：2010-10-06

申请号：EP02794132

申请日：2002-12-05

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  UPPALA SATHYADEV VENKATA

IPC: H04W72/04

CPC classification number: H04W72/042

公开(公告)号：EP1602184A4

公开(公告)日：2009-06-10

申请号：EP04712817

申请日：2004-02-19

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  SRINIVASAN MURARI ,  LI JUNYI

IPC: H04L5/04 ,  H04B7/005 ,  H04B14/02 ,  H04L5/00 ,  H04L25/49 ,  H04L27/26 ,  H04L27/34 ,  H04W52/24 ,  H04W52/28

CPC classification number: H04W52/283 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/04 ,  H04L27/2604 ,  H04L27/3488 ,  H04W52/24

Abstract: First and second sets of information are transmitted using a relatively large transmission block including a plurality of minimum transmission units (MTUs), each MTU corresponds to a unique combination of resources. A first set of said MTUs is used in conveying said first set of information, said first set including at least a majority of said MTUs in the transmission block. A second set of said MTUs is defined, e.g., selected, for use in conveying said second set of information, said second set of MTUs including less MTUs than first set and at least some MTUs included in the first set. The first and second sets of information are communicated by transmitting at least some MTUs included in said first and second sets of MTUs with the corresponding information modulated thereon. The communicating of the information may be through superposition of the first and second information on shared MTUs.

公开(公告)号：EP1810417A4

公开(公告)日：2013-02-20

申请号：EP04795368

申请日：2004-10-15

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LANE FRANK A ,  LI JUNYI

IPC: H04B7/00 ,  H04B7/212 ,  H04J1/00 ,  H04J11/00 ,  H04L5/00

CPC classification number: H04L5/0044 ,  H04L5/0048 ,  H04L5/0053

公开(公告)号：EP1673684A4

公开(公告)日：2012-07-18

申请号：EP04795100

申请日：2004-10-15

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  STANSKI CHARLES ,  LI JUNYI

IPC: H04B1/38 ,  G06F20060101 ,  H04L27/26 ,  H04M11/00 ,  H04W48/10 ,  H04W48/16

CPC classification number: H04W48/10 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2655 ,  H04W48/16

公开(公告)号：EP1810529A4

公开(公告)日：2012-02-01

申请号：EP05808764

申请日：2005-10-13

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI

IPC: F01D25/00 ,  F01D9/02 ,  F02C7/00 ,  G01S5/02 ,  G01S19/25 ,  H04B7/02 ,  H04B7/12 ,  H04B17/00 ,  H04W24/00 ,  H04W48/08 ,  H04W48/16 ,  H04W52/16 ,  H04W64/00

CPC classification number: H04W64/00 ,  F01D9/023 ,  G01S5/0226 ,  G01S5/0252 ,  G06Q10/00 ,  H04B7/022 ,  H04B7/12 ,  H04B17/27 ,  H04B17/327 ,  H04W24/00 ,  H04W48/08 ,  H04W48/16 ,  H04W52/16

Abstract: Wireless terminals, e.g., mobile nodes, receive, identify, and measure broadcast signals from a plurality of cells. They determine relative transmission power relationships corresponding to the received measured signals and determine at least two channel gain ratios. A geographic area is determined corresponding to the obtained at least two channel gain ratios and information indicating the geographic region in which such gain ratios may be detected. Each cell's base station transmits broadcast signals, e.g., beacon signals, pilot signals, and/or assignment signals for one more carriers. Some base stations use multiple carriers at different power levels. Some adjacent cells use different power levels for the same carrier. This carrier diversity approach tends to reduce overall interference in the system, yet provides mobiles with a variety of different strength signals which may be monitored and which vary as a function of distance from the source transmitter.

公开(公告)号：EP1735930A4

公开(公告)日：2011-04-27

申请号：EP04795314

申请日：2004-10-15

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  LANE FRANK A

IPC: H04B17/02 ,  H04B1/00 ,  H04B1/10 ,  H04B1/40 ,  H04B15/00 ,  H04B17/00

CPC classification number: H04B1/005 ,  H04B1/1027 ,  H04B1/406 ,  H04B17/327 ,  H04B17/382

公开(公告)号：EP1754387A4

公开(公告)日：2011-02-09

申请号：EP05758002

申请日：2005-06-09

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  RANGAN SUNDEEP ,  HANDE PRASHANTH

IPC: H04W68/00 ,  H04W68/02

CPC classification number: H04W68/025

Abstract: Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.