公开(公告)号：EP2397003A1

公开(公告)日：2011-12-21

申请号：EP10711278.1

申请日：2010-02-12

Applicant: QUALCOMM Incorporated

Inventor： JOU, Yu-Cheun ,  ATTAR, Rashid ,  WALLACE, Mark ,  WU, Qiang ,  MA, Jun

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0235 ,  H04W52/44 ,  H04W52/54 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/25

Abstract: An apparatus and method for transmit power savings comprising determining a rate of a previous frame; determining if a current frame is an ALWAYS-ON frame, wherein the current frame temporally succeeds the previous frame; and either ignoring every other reverse link power control (RLPC) bits received on a forward power control subchannel (F-PCSCH) or applying every RLPC bits received on the F-PCSCH. In one aspect, the apparatus and method for transmit power savings comprising using a rate determination algorithm (RDA) to determine a rate of a previous frame; detecting a pilot gating pattern at the end of the previous frame; comparing the rate of the previous frame to a threshold; determining if a current frame is an ALWAYS-ON frame; and declaring the current frame to be a 0 bps frame and puncturing the F-PCSCH to a predetermined frequency.

公开(公告)号：EP1415412B1

公开(公告)日：2010-12-01

申请号：EP02757072.0

申请日：2002-08-08

Applicant: QUALCOMM INCORPORATED

Inventor： JOU, Yu-Cheun

IPC: H04W52/26 ,  H04W52/28

CPC classification number: H04W52/267 ,  H04L1/0002 ,  H04W52/24 ,  H04W52/282

Abstract: In a code division multiple access communication system (100), a method and an accompanying apparatus provide for an efficient control of a gain level of a communication channel at various mobility levels. A rate of change of a carrier to interference ratio (C/I) of a communication channel received at a receiver (400) is determined. The gain level of the communication channel may be based on the rate of change of the C/I of the communication channel. A mobility level of the communication channel may be compared to a low mobility threshold corresponding to a low mobility level. If the mobility level meets the low mobility threshold, the gain level of the communication channel may be based on the rate of change of the C/I of the communication channel.

公开(公告)号：EP1254578B1

公开(公告)日：2010-01-13

申请号：EP01907185.1

申请日：2001-02-08

Applicant: QUALCOMM INCORPORATED

Inventor： JOU, Yu-Cheun ,  WANG, Jun ,  REZAIIFAR, Ramin ,  ACHOUR, Baaziz ,  CHEN, Tao

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W36/18

公开(公告)号：EP0974237B1

公开(公告)日：2006-08-02

申请号：EP98919748.8

申请日：1998-04-07

Applicant: QUALCOMM INCORPORATED

Inventor： TIEDEMANN, Edward, G., Jr. ,  CHEN, Tao ,  JOU, Yu-Cheun ,  LIN, Yu-Chuan

IPC: H04Q7/22 ,  H04Q7/38 ,  H04B7/26

CPC classification number: H04W72/1278 ,  H04L47/10 ,  H04L47/14 ,  H04L47/2433 ,  H04L47/30 ,  H04W28/22 ,  H04W36/02 ,  H04W36/18 ,  H04W52/12 ,  H04W52/367 ,  H04W72/1247 ,  H04W72/1252 ,  H04W72/1268

Abstract: A method of and apparatus for scheduling data transmissions in a communication network comprising at least one cell (2a to 2g) and at least one scheduled user (6a to 6e) improves utilization of the reverse link and decreases the transmission delay in data communication. The apparatus comprises a controller (92) for collecting status information for said communication network and for scheduling data transmissions from said at least one cell (2a to 2g) to said at least one scheduled user (6a to 6e). A memory (94) is connected to said controller for storing said status information, and a timer (96) is connected to provide timing signals to said controller (92). The timing signals enable said controller to perform scheduling of data transmission. Each remote station is assigned a maximum unscheduled transmission rate for the duration of the communication with a cell. A maximum scheduled transmission rate can be assigned by a channel scheduler (12) for scheduled transmission of data traffic at high rates. The maximum scheduled transmission rate is assigned in accordance with a set of system goals, a list of system constraints, and collected information on the status of the communication network. Data is partitioned in data frames and transmitted over the reverse link at or below the maximum scheduled transmission rate which have been assigned to the scheduled user.

公开(公告)号：EP1282993B1

公开(公告)日：2006-07-19

申请号：EP00936058.7

申请日：2000-05-17

Applicant: QUALCOMM INCORPORATED

Inventor： TIEDEMANN, Edward, G., Jr. ,  JOU, Yu-Cheun ,  LIN, Yu-Chuan

IPC: H04Q7/38

CPC classification number: H04W28/18 ,  H04L2012/5632 ,  H04W28/22 ,  H04W48/16

Abstract: Access to a variable rate multiple access system is controlled based upon a current loading. The current loading level is used to determine a transmission rate set point. The transmission rate set point may include a maximum transmission rate and a transmission probability. The transmission rate set point is passed to the remote unit (100) which may access the system. A remote unit (100) with data to send determines a desired transmission data rate (106). If the desire transmission data rate is equal to or greater than the maximum transmission data rate, the remote unit (100) transmits at the maximum transmission data rate with a probability equal to the transmission probability.

公开(公告)号：EP1016303B1

公开(公告)日：2005-12-14

申请号：EP98948285.6

申请日：1998-09-16

Applicant: QUALCOMM INCORPORATED

Inventor： REZAIIFAR, Ramin ,  JOU, Yu-Cheun ,  TIEDEMANN, Edward, G., Jr.

IPC: H04Q7/38 ,  H04B7/26

CPC classification number: H04B7/2656 ,  H04B7/18584 ,  H04B7/264 ,  H04W36/18 ,  H04W48/12 ,  H04W52/0216 ,  H04W52/0245 ,  H04W72/0406 ,  H04W72/1278 ,  H04W76/27 ,  Y02D70/1222 ,  Y02D70/446 ,  Y02D70/449

Abstract: In a channel structure for use in communication systems, two sets of physical channels, one for the forward link (50) and another for the reverse link (52), are utilized to facilitate communication of a variety of logical channels. The physical channels comprise data and control channels. In the exemplary embodiment, the data channels comprise fundamental channels which are used to transmit voice traffic, data traffic, high speed data, and other overhead information and supplemental channels which are used to transmit high speed data. The fundamental channels can be released when the remote stations are idle to more fully utilize the available capacity. The control channels are used to transmit paging and control messages and scheduling information.

公开(公告)号：EP1428401B1

公开(公告)日：2005-11-09

申请号：EP02763586.1

申请日：2002-08-30

Applicant: QUALCOMM INCORPORATED

Inventor： JOU, Yu-Cheun

IPC: H04Q7/38

CPC classification number: H04L1/1867 ,  H04L1/1692 ,  H04L69/16 ,  H04L69/165 ,  H04L2001/0092 ,  H04W92/20

Abstract: In a communication system (100), a method and an accompanying apparatus provide for acknowledging reception of a packet of data. A receiver (400) at a serving base station (101) receives a message on an acknowledgement channel (340) for indicating the reception of the packet of data at a mobile station (102), and may determine an erasure of the message. A non-serving base station (160) may also receive the message on the acknowledgement channel (340) from the mobile station (102), determines a value of the message, and communicates the value of the message to the serving base station (101). The serving base station (101) changes the erasure to the value of the message, and terminates a transmission of a remainder of data units of the packet of data to the mobile station (102) when the value of the message is a positive acknowledgment from the non-serving base station (160).

公开(公告)号：EP1016234B1

公开(公告)日：2005-08-17

申请号：EP98949354.9

申请日：1998-09-16

Applicant: QUALCOMM INCORPORATED

Inventor： JOU, Yu-Cheun

IPC: H04J11/00 ,  H04J13/02 ,  H04L27/26 ,  H04L5/02 ,  H04L25/03

CPC classification number: H04L5/0017 ,  H04B1/707 ,  H04J13/0048 ,  H04L1/0059 ,  H04L1/0071 ,  H04L5/0021 ,  H04L5/0046 ,  H04L5/0064 ,  H04L25/03866

公开(公告)号：EP1430621A1

公开(公告)日：2004-06-23

申请号：EP02761825.5

申请日：2002-09-24

Applicant: Qualcomm, Incorporated

Inventor： JOU, Yu-Cheun

IPC: H04B7/26 ,  H04L12/56

CPC classification number: H04W28/22 ,  H04W24/00

Abstract: In a communication system, a method and an apparatus provide for efficient communications of data rate control information. A mobile station communicates a request on a data channel for reception of a data file on a traffic channel. In response to the request, a transmitter in mobile station starts communication of data rate control information on a data rate control channel. After concluding the delivery of a requested data file by a receiver in mobile station, transmitter ceases communication of data rate control information on data rate control channel from mobile station.

公开(公告)号：EP1295407A2

公开(公告)日：2003-03-26

申请号：EP01948536.6

申请日：2001-06-19

Applicant: QUALCOMM INCORPORATED

Inventor： SARKAR, Sandip ,  JOU, Yu-Cheun

IPC: H04B7/005

CPC classification number: H04W52/282 ,  G01S11/02 ,  G01S11/06 ,  G01S11/10 ,  H04W52/08

Abstract: A method and apparatus for adaptively controlling the power level of transmissions from a remote station by determining the velocity of the remote station. A general classification of the velocity of the remote station can be used to selectively implement a closed loop power control scheme. Power level parameters[k1] are used to determine velocity[k2]. In accordance with a classification of stationary, low speed, or high speed[k3], the closed loop power control is selectively operated. Velocity can be determined by either the base station or the remote station through various methods. One method is the use of power control bits and/or average power to determine level crossings and excursion times[k4].