公开(公告)号：DE60225245T2

公开(公告)日：2009-05-07

申请号：DE60225245

申请日：2002-01-17

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ

IPC: H04R5/02 ,  H04S1/00 ,  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：DE60322238D1

公开(公告)日：2008-08-28

申请号：DE60322238

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：ES2277943T3

公开(公告)日：2007-08-01

申请号：ES01973609

申请日：2001-09-27

Applicant: QUALCOMM INC

Inventor： CHEN QINGXIN ,  ACHOUR BAAZIZ

IPC: H04W36/08

Abstract: Un procedimiento para programar una búsqueda de frecuencias candidatas en un dispositivo de estación móvil, EM (10), de comunicación inalámbrica, que opera en una frecuencia de envío, FS, y que se comunica con una estación base, EB (12), comprendiendo el procedimiento: (a) seleccionar un Máx_Tiempo_Desconectada según el tiempo máximo que la EM puede operar desconectada de la FS, manteniendo a la vez una calidad de voz aceptable; (b) calcular (800) el tiempo para buscar señales piloto, Tsw, donde Tsw = Máx_Tiempo_Desconectada - (2 * Thw), y donde Thw se define como el tiempo requerido por la EM para sintonizar una nueva frecuencia; (c) calcular (800) el número de visitas, Nv, a frecuencias candidatas durante un intervalo de validez proporcionado desde la EB a la EM, según la ecuación Nv = Nm * Tamaño_de_Búsqueda * Tm / Tsw, donde Tamaño_de_Búsqueda se define como un número que representa los canales piloto a buscar durante una búsqueda de frecuencias candidatas, Tm se define como el tiempo requerido para hacer una medición de piloto, y Tsw se define como el tiempo requerido por la estación móvil para medir la potencia de pilotos en una frecuencia candidata durante una visita a la frecuencia candidata, (d) calcular (802) la calidad de voz, CV, según la ecuación CV = Nv * Máx_Tiempo_Desconectada / (el intervalo de validez); (e) determinar (804) si CV

公开(公告)号：ES2267989T3

公开(公告)日：2007-03-16

申请号：ES02707849

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: Procedimiento (300) para aumentar al máximo el rendimiento de las llamadas de datos en un sistema de comunicación inalámbrica (100), en el que los datos se transmiten en múltiples canales asignados desde una estación inalámbrica, que comprende las etapas siguientes: a. recibir (310) los múltiples canales asignados; b. demodular y decodificar (315) cada uno de los múltiples canales asignados; c. determinar (320) una velocidad de transmisión de datos probable de cada uno de los múltiples canales asignados; y d. correlacionar (325) todas las velocidades de transmisión de datos probables para determinar una combinación de velocidades de transmisión de datos de máxima probabilidad (ML).

公开(公告)号：HK1083288A1

公开(公告)日：2006-06-30

申请号：HK06103242

申请日：2006-03-14

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：AU2003220461A1

公开(公告)日：2003-10-08

申请号：AU2003220461

申请日：2003-03-19

Applicant: QUALCOMM INC

Inventor： KHUSHU SANJEEV ,  ACHOUR BAAZIZ ,  PATRICK CHRISTOPHER ,  YETTER CAROL

IPC: H04W4/02 ,  H04W64/00 ,  H04W76/02 ,  H04Q7/32 ,  H04Q7/38

Abstract: A visit to an overhead channel to obtain base station identifiers is made if it is necessary to do so. Base station identifiers are indicative of an approximate location of a terminal. The determination to update the base station identifiers may be made by monitoring one or more base stations in the terminal's active set. In another aspect, the terminal can originate a new data call immediately after the necessary base station identifiers have been obtained from the overhead channel, without having to wait for the expiration of a timer (e.g., the dormant timer). Moreover, by maintaining the data session when terminating the data call for the overhead visit, data communication may be more quickly resumed, for a new data call originated after the overhead visit, using the same configured protocols.

公开(公告)号：AU765871B2

公开(公告)日：2003-10-02

申请号：AU6206900

申请日：2000-07-06

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ ,  HUGHES ROBBIN ,  USMANI FARRUKH ,  AHSAN SYED N

IPC: H04W36/14 ,  H04W48/18 ,  H04W88/06 ,  H04Q7/38

Abstract: A method to enhance performance of a dual-mode or dual-band mobile phone includes, after the phone has initially connected to a CDMA wireless network, monitoring a level of total power received by the phone. This power level is compared to a preset threshold level. If the power level remains below the threshold level for over two seconds, the dual-mode or dual-band phone switches to an AMPS or other network retrieved from the preferred roaming list that is stored in the phone. If the power level is above the threshold, the phone moves into the idle state. Once in the idle state, both the pilot strength and Received Signal Strength Indication are monitored. If both of these levels are below respective thresholds for over eight seconds, the phone switches to another network stored in the preferred roaming list. If the mobile phone is not a dual-mode or dual-band phone, the mobile phone can perform similar measurements and switch between service provider systems compatible with the mobile phone.

公开(公告)号：NO20023776D0

公开(公告)日：2002-08-09

申请号：NO20023776

申请日：2002-08-09

Applicant: QUALCOMM INC

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

IPC: H04B7/005 ,  H04B7/26 ,  H04W36/18 ,  H04W36/30 ,  H04Q

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：CA2423692A1

公开(公告)日：2002-04-04

申请号：CA2423692

申请日：2001-09-27

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ ,  CHEN QINGXIN

IPC: H04W36/08 ,  H04Q7/38

Abstract: A method and apparatus for decreasing the probability of dropping a call during a hard handoff procedure in a wireless communication system (FIG. 1). The two primary functions of the candidature frequency (CF) search method an d apparatus of the present invention are to detect the strong pilots (908-916) on a candidate frequency in the area of the mobile station and to maintain adequate service quality during the CF search (FIG. 8).

公开(公告)号：CA2409065A1

公开(公告)日：2002-01-10

申请号：CA2409065

申请日：2001-06-28

Applicant: QUALCOMM INC

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

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

Abstract: A system and method for detecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a plurality of frames; classifying each of the frames; 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. In the illustrative embodiment, the step of classifying includes the step of error checking the frames using a cyclic redundancy check (CRC) error checking protocol. The received frames are classified as good frames (G), erasure frames (E), or discontinuous frames (D). A numerical value is assigned to each of the frames based on the classification thereof. Next, the frames are filtered to provide an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for 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 the detection of discontinuous frames. That is, a detection of a discontinuous transmission frame is indicated when a frame is classified as an 'erasure' and 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 or a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.