公开(公告)号：AT468683T

公开(公告)日：2010-06-15

申请号：AT06801680

申请日：2006-08-16

Applicant: QUALCOMM INC

Inventor： ATTAR RASHID ,  BHUSHAN NAGA ,  BLACK PETER ,  PANKAJ RAJESH ,  ZHANG DANLU ,  WU QIANG ,  YAVUZ MEHMET ,  VANICHPUN SARUT ,  TOKGOZ YELIZ ,  GROB MATTHEW

IPC: H04L12/28 ,  H04W28/04 ,  H04W36/18 ,  H04W36/30 ,  H04W36/38 ,  H04W72/00 ,  H04W72/06 ,  H04W99/00

Abstract: Embodiments disclosed herein relate to methods and systems for providing adaptive server selection in wireless communications. In an embodiment, an access terminal is configured to determine a forward link quality metric associated with each of a plurality of sectors serviced by a plurality of access points; assign credits to each sector in relation to the forward link quality metric; and change a data source control (DSC) value if the credits accumulated for a non-serving sector at a DSC change boundary is greater than a predetermined threshold, where the non-serving sector and the serving sector for the AT belong to different cells. The access terminal is further configured to change a data rate control (DRC) cover in accordance with the DSC change. The use of DSC provides an early indication of handoff, thereby allowing the service outage associated with server switching to be substantially reduced. A method for handoff is further disclosed using DSC as early indication of handoff, which also trigger multitasking forward traffic for the access terminal to all access points.

公开(公告)号：MX2010001207A

公开(公告)日：2010-03-04

申请号：MX2010001207

申请日：2008-08-08

Applicant: QUALCOMM INC

Inventor： BLACK PETER J ,  NANDA SANJIV ,  YAVUZ MEHMET

IPC: H04W52/24

Abstract: La potencia de transmisión (por ejemplo, potencia de transmisión máxima) se puede definir con base en la intensidad de señal recibida máxima permitida por un receptor y una pérdida de acoplamiento mínima desde un nodo de transmisión a un receptor; la potencia de transmisión se puede definir para un nodo de acceso (por ejemplo, un nodo femto) de manera que una interrupción de servicio correspondiente creada en una célula (por ejemplo, una célula macro) queda limitada mientras se sigue proporcionando un nivel aceptable de cobertura para las terminales de acceso asociadas con el nodo de acceso; un nodo de acceso puede ajustar de manera autónoma su potencia de transmisión con base en la medición del canal y un agujero de cobertura definido para mitigar la interferencia; la potencia de transmisión se puede definir con base en la calidad del canal; la potencia de transmisión se puede definir con base en una relación señal-a-ruido en una terminal de acceso; la potencia de transmisión de nodos de acceso vecinos también puede ser controlada por señalización de nodo de inter-acceso.

公开(公告)号：AU2009271026A1

公开(公告)日：2010-01-21

申请号：AU2009271026

申请日：2009-07-14

Applicant: QUALCOMM INC

Inventor： YAVUZ MEHMET ,  NANDA SANJIV ,  TINNAKORNSRISUPHAP PEERAPOL ,  DESHPANDE MANOJ M

IPC: H04W36/04 ,  H04W8/26 ,  H04W48/12 ,  H04W84/04

公开(公告)号：AU2009271025A1

公开(公告)日：2010-01-21

申请号：AU2009271025

申请日：2009-07-14

Applicant: QUALCOMM INC

Inventor： DESHPANDE MANOJ M ,  TINNAKORNSRISUPHAP PEERAPOL ,  NANDA SANJIV ,  YAVUZ MEHMET

IPC: H04W8/26 ,  H04W16/16 ,  H04W24/02 ,  H04W48/12

公开(公告)号：AU2009271023A1

公开(公告)日：2010-01-21

申请号：AU2009271023

申请日：2009-07-14

Applicant: QUALCOMM INC

Inventor： NANDA SANJIV ,  YAVUZ MEHMET ,  MAKH VANSH PAL SINGH

IPC: H04W72/08 ,  H04W84/04

Abstract: Systems and methods for avoiding interference signals sent by a femto node in a wireless communication system are described herein. In one embodiment, the method comprises establishing a communication link between a first transceiver and a base station. The base station is configured to provide wireless communication coverage within a first area. The method further comprises detecting by the first transceiver a femto signal generated by the femto node. The femto node is configured to provide wireless communication coverage within a second area to at least a second transceiver. The second transceiver is different from the first transceiver. The second area is smaller than the first area. The method further comprises identifying information indicative of a signal strength of the femto signal. The method further comprises transmitting a first message in response to detecting the femto signal, the first message comprising information identifying the femto node and the information indicative of the signal strength of the femto signal to the base station over a first frequency carrier. The method further comprises receiving a second message from the base station. The second message comprises information indicative of an instruction to communicate over a second carrier frequency. The method further comprises communicating with the base station over a second frequency carrier in response to the second message.

公开(公告)号：CA2727241A1

公开(公告)日：2009-12-17

申请号：CA2727241

申请日：2009-05-15

Applicant: QUALCOMM INC

Inventor： GROB MATTHEW S ,  YAVUZ MEHMET ,  NANDA SANJIV

IPC: H04W88/04 ,  H04W36/32

Abstract: Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a backhaul, and local broadcast of media though utilization of femto enabled devices.

公开(公告)号：CA2928923A1

公开(公告)日：2009-11-19

申请号：CA2928923

申请日：2009-05-12

Applicant: QUALCOMM INC

Inventor： YAVUZ MEHMET ,  MESHKATI FARHAD ,  EL-KHAMY MOSTAFA S ,  NANDA SANJIV

IPC: H04W52/08 ,  H04B17/318 ,  H04W24/10

Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process.

公开(公告)号：CA2722439A1

公开(公告)日：2009-11-19

申请号：CA2722439

申请日：2009-05-12

Applicant: QUALCOMM INC

Inventor： YAVUZ MEHMET ,  NANDA SANJIV

IPC: H04W72/04

Abstract: Downlink codes may be chosen autonomously for femtocells in a wireless communication environment. Downlink transmissions are received from Home NodeBs that are neighbors of the femtocell and macrocell base stations near the femtocell. The downlink transmissions are evaluated to recognize a first set of detected downlink codes that each have a pilot energy above a predetermined detection threshold. An optimal downlink code is selected for use in connection with serving user equipment of the femtocell. The optimal downlink code is based upon the first set of detected downlink codes and selected as a downlink code from a set of downlink codes reserved for the femtocell. The optimal downlink code may be an available downlink code with a smallest amount of detected energy or a randomly selected downlink code from the available downlink codes.

公开(公告)号：CA2723797A1

公开(公告)日：2009-11-12

申请号：CA2723797

申请日：2009-05-07

Applicant: QUALCOMM INC

Inventor： YAVUZ MEHMET ,  TINNAKORNSRISUPHAP PEERAPOL ,  REZAIIFAR RAMIN ,  GUPTA VIKRAM

IPC: H04W28/10

Abstract: Techniques for enhanced backhaul flow control are provided. In an exemplary embodiment, a backhaul control system is described that comprises a base station controller (BSC), a backhaul network, and a base transceiver station (BTS). Each is responsive to data and messaging transmitted and received. In one aspect, the BTS includes a queue and a controller. The amount of data in a queue is adjusted by a controller based upon calculating a target queue size value. The controller non-uniformly adjusts the amount of data in a queue based upon a target queue size value which is based upon communication system parameters. The target queue size and amount of data in a queue is adjusted so as to reduce buffer underrun, decrease system latency, and increase communication system throughput.

公开(公告)号：CA2717355A1

公开(公告)日：2009-11-12

申请号：CA2717355

申请日：2009-03-25

Applicant: QUALCOMM INC

Inventor： GHOLMIEH AZIZ ,  ZHANG DANLU ,  SAMBHWANI SHARAD DEEPAK ,  YAVUZ MEHMET ,  MOHANTY BIBHU

IPC: H04L5/00

Abstract: Methods and apparatuses for facilitating managing cells in a multi-carrier system from an access terminal and base station are provided. The base station and access terminal communicate via an anchor carrier and a supplementary carrier. A triggering algorithm generated by the base station is transmitted to the access terminal. The triggering algorithm includes instructions for the access terminal to report downlink measurements as a function of trigger events detected over the anchor carrier and/or the supplementary carrier. Downlink measurements taken by the access terminal are provided to the base station. Cell management instructions based in part on the downlink measurements are then provided to the access terminal by the base station.