公开(公告)号：AT455446T

公开(公告)日：2010-01-15

申请号：AT01907185

申请日：2001-02-08

Applicant: QUALCOMM INC

Inventor： JOU YU-CHEUN ,  WANG JUN ,  REZAIIFAR RAMIN ,  ACHOUR BAAZIZ ,  CHEN TAO

IPC: H04B7/26 ,  H04W36/30 ,  H04B7/005 ,  H04W36/18

Abstract: A method and apparatus for generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station traveling in a multi-carrier wireless communication system. In a multi-carrier system, the mobile station receives the pilot channel of a base station on multiple carrier frequencies simultaneously. Fading may vary from carrier frequency to carrier frequency. New pilot strength definitions are used by the mobile station in a set of rules transmitted by the base station. The set of rules determines autonomous generation and transmission of PSMMs by the mobile station upon detection of pilots.

公开(公告)号：CA2409065C

公开(公告)日：2009-11-24

申请号：CA2409065

申请日：2001-06-28

Applicant: QUALCOMM INC

Inventor： LIN YU-CHUAN ,  GLAZKO SERGUEI ,  ACHOUR BAAZIZ

IPC: H04J3/17 ,  H04B7/26 ,  H04J3/14 ,  H04L1/20 ,  H04Q7/38

Abstract: A system and method for dectecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a pluralitz of frames (62); classifzing each of the frames (63); analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame (66). In the illustrative embodiment, the step of classifzing includes the step of error checking the frames using a cyclic redundancz check (CRC) error checking protocol. The received frames are classified as good frames (G), erasureframes (E), or discontinuous frames (D). A numerical value is assigned toe ach of the frame s based on the classification thereof. Next, the frames are filtered tp provic e an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output fo r a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate t he detection of discontinuous frames. That is, a detection of a discontinuous transmisson frame is indicated when a frame is classified as an 'erasure' an d the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames of a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.

公开(公告)号：CA2398717C

公开(公告)日：2009-09-22

申请号：CA2398717

申请日：2001-02-08

Applicant: QUALCOMM INC

Inventor： REZAIIFAR RAMIN ,  ACHOUR BAAZIZ ,  JOU YU-CHEUN ,  CHEN TAO ,  WANG JUN

IPC: H04B7/26 ,  H04W24/00 ,  H04B7/005 ,  H04W36/18 ,  H04W36/30

Abstract: A method and apparatus for generating an autonomous Pilot Strength Measureme nt Message (PSMM) by a mobile station traveling in a multi-carrier wireless communication system. In a multi-carrier system, the mobile station receives the pilot channel of a base station on multiple carrier frequencies simultaneously. Fading may vary from carrier frequency to carrier frequency. New pilot strength definitions are used by the mobile station in a set of rules transmitted by the base station. The set of rules determines autonomous generation and transmission of PSMMs by the mobile station upon detection of pilots.

公开(公告)号：AT401750T

公开(公告)日：2008-08-15

申请号：AT03785125

申请日：2003-08-07

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ ,  CASACCIA LORENZO ,  SINNARAJAH RAGULAN

IPC: H04H20/00 ,  H04B1/06 ,  H04B1/16 ,  H04B7/26 ,  H04W4/06

Abstract: Systems and techniques are disclosed relating to communications. The systems and techniques include an input device, generating a time period in response to a broadcast channel selection from the input device, generating a request to register the broadcast channel if the time period ends before receiving a second broadcast channel selection, and transmitting the request to an access network. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

公开(公告)号：AT387818T

公开(公告)日：2008-03-15

申请号：AT02705893

申请日：2002-01-17

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ

IPC: H04W16/06 ,  H04W28/08 ,  H04W28/26 ,  H04W36/22

Abstract: A system for improving the efficiency of a wireless communications network that employs a plurality of frequencies per cell. The system includes a first mechanism that monitors the network load associated with each of the plurality of frequencies and provides corresponding status values in response thereto. A second mechanism compares the status values to predetermined loading criteria and provides an indication in response thereto when one or more of the status values meet the criteria. A third mechanism redistributes the network load in accordance with the indication. In a specific embodiment, the criteria include one or more predetermined thresholds such that when one or more of the predetermined thresholds is surpassed by the one or more of the status values, the criteria are met. The status values are representative of loading conditions for communications system resources associated with each of the frequencies. The loading conditions are representative of currently available resources allocated for each of the plurality of frequencies. Each status value includes a hardware resource component, an air link resource component, and a handling resource component. Each component is indicative of respective remaining resources. The hardware resource component incorporates the number of currently available channel elements for an associated frequency. The air link resource component incorporates transmit power available for a particular frequency. The handling resource component incorporates the number of available Walsh codes for a particular frequency.

公开(公告)号：DE60213772T2

公开(公告)日：2007-09-13

申请号：DE60213772

申请日：2002-02-21

Applicant: QUALCOMM INC

Inventor： JOSHI ABHAY ,  ACHOUR BAAZIZ ,  GLAZKO SERGUEI

IPC: H04L25/02 ,  H04B7/26 ,  H04L12/56 ,  H04L29/08 ,  H04W28/22 ,  H04W72/04

Abstract: The present invention provides a method and apparatus for maximizing throughput of a data call in a wireless communication system in which data is transmitted from a wireless station, such as a mobile station, on multiple assigned channels in accordance with a known transmission standard, such as IS-95B. The multiple assigned channels include a fundamental channel and at least one supplemental channel. Data is formatted into variable rate data frames and transmitted on the fundamental channel and the supplemental channel. A wireless receiver, such as a base station, receives the multiple assigned channels. The wireless receiver demodulates and decodes data frames associated with each of the multiple assigned channels. The wireless receiver determines a likely initial data rate for each demodulated and decode data frame. The wireless receiver correlates all of the likely data rates, by comparison to one another and to a relevant transmission protocol standard, to determine a maximum likelihood combination of data rates. The maximum likelihood combination of data rates includes a maximum likelihood data rate corresponding to each likely data rate. Decoded data frames are invalidated and erased when the likely data frame rates do not match corresponding maximum likelihood data rates.

公开(公告)号：HK1097146A1

公开(公告)日：2007-06-15

申请号：HK07101664

申请日：2007-02-12

Applicant: QUALCOMM INC

Inventor： CHEN TAO ,  ACHOUR BAAZIZ ,  BUTLER BRIAN K ,  TIEDEMANN EDWARD G JR ,  CHANG HAITAO ,  SAINTS KEITH W ,  BLESSENT LUCA ,  WEI YONGBIN

IPC: H04W72/14 ,  H04B7/005 ,  H04L12/18 ,  H04W4/06 ,  H04W52/08 ,  H04W52/32 ,  H04W52/54

Abstract: A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.

公开(公告)号：BRPI0412468A

公开(公告)日：2006-09-19

申请号：BRPI0412468

申请日：2004-07-12

Applicant: QUALCOMM INC

Inventor： CHEN TAO ,  ACHOUR BAAZIZ ,  BUTLER BRIAN K ,  CHANG HAITAO ,  SAINTS KEITH W ,  BLESSENT LUCA ,  WEI YONGBIN ,  TIEDEMANN EDWARD G JR

IPC: H04W72/14 ,  H04B7/005 ,  H04L12/18 ,  H04W4/06 ,  H04W52/08 ,  H04W52/32 ,  H04W52/54 ,  H04Q7/38

Abstract: A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.

公开(公告)号：AT336129T

公开(公告)日：2006-09-15

申请号：AT02707849

申请日：2002-02-21

Applicant: QUALCOMM INC

Inventor： JOSHI ABHAY ,  ACHOUR BAAZIZ ,  GLAZKO SERGUEI

IPC: H04B7/26 ,  H04L12/56 ,  H04L29/08 ,  H04W28/22 ,  H04W72/04 ,  H04L25/02

Abstract: The present invention provides a method and apparatus for maximizing throughput of a data call in a wireless communication system in which data is transmitted from a wireless station, such as a mobile station, on multiple assigned channels in accordance with a known transmission standard, such as IS-95B. The multiple assigned channels include a fundamental channel and at least one supplemental channel. Data is formatted into variable rate data frames and transmitted on the fundamental channel and the supplemental channel. A wireless receiver, such as a base station, receives the multiple assigned channels. The wireless receiver demodulates and decodes data frames associated with each of the multiple assigned channels. The wireless receiver determines a likely initial data rate for each demodulated and decode data frame. The wireless receiver correlates all of the likely data rates, by comparison to one another and to a relevant transmission protocol standard, to determine a maximum likelihood combination of data rates. The maximum likelihood combination of data rates includes a maximum likelihood data rate corresponding to each likely data rate. Decoded data frames are invalidated and erased when the likely data frame rates do not match corresponding maximum likelihood data rates.

公开(公告)号：MXPA06000572A

公开(公告)日：2006-03-30

申请号：MXPA06000572

申请日：2004-07-15

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ

IPC: H04B7/00 ,  H04W4/16 ,  H04L20060101 ,  H04W68/00 ,  H04Q7/20 ,  H04L00/00

Abstract: Un metodo y aparato para proporcionar informacion de busqueda de ciclo de ranura corto desde un dispositivo de comunicacion (CD) hasta una estacion base (BS) incluye recibir mensajes del parametro de sistema desde la BS, determinando si la BS es capaz de realizar una busqueda de ciclo de ranura corto, e indicar que el CD tambien es capaz de realizar una busqueda de ciclo de ranura corto si la BS se determina que es capaz de realizar una busqueda de ranura corta. Un metodo en una BS para proporcionar una busqueda de ciclo de ranura corto incluye indicar a un CD que la BS es capaz de realizar una busqueda de ciclo de ranura corto, que recibe informacion desde el CD, indicando que el CD tambien es capaz de realizar una busqueda de ciclo de ranura corto, y realizar una busqueda del CD con base en la informacion recibida.