公开(公告)号：DE602005015301D1

公开(公告)日：2009-08-20

申请号：DE602005015301

申请日：2005-03-07

Applicant: QUALCOMM INC

Inventor： NAGUIB AYMAN FAWZY ,  AGRAWAL AVNEESH

IPC: H04L27/26 ,  G11C5/00 ,  H04B7/005 ,  H04J99/00

Abstract: Systems and methods for controlling transmission power are provided. The systems and methods vary the power of a signal provided to a power amplifier based upon the location of a frequency or frequencies of signals to be transmitted within the transmission frequency band, the location of a hop region within the transmission frequency band, the bandwidth of signals to be transmitted, or combinations of these approaches.

公开(公告)号：CA2815567A1

公开(公告)日：2009-08-13

申请号：CA2815567

申请日：2009-01-27

Applicant: QUALCOMM INC

Inventor： JI TINGFANG ,  AGRAWAL AVNEESH ,  GOROKHOV ALEXEI Y

IPC: H04W24/04

Abstract: Techniques for mitigating pilot pollution in a wireless network are described. In an aspect, pilot pollution may be mitigated by reducing density and/or transmit power of common pilots whenever possible. A cell may send a common pilot at a first density and a first transmit power level during a first time period and may send the common pilot at a second density and a second transmit power level during a second time period. The second density may be lower than the first density and/or the second transmit power level may be lower than the first transmit power level. Lower density may be achieved by sending the common pilot less frequently, on fewer subcarriers, and/or from fewer antennas. The cell may determine whether to reduce the density and/or transmit power of the common pilot based on network loading, SINRs of terminals, etc. In another aspect, pilot pollution may be mitigated by performing pilot cancellation at a terminal.

公开(公告)号：CA2713862A1

公开(公告)日：2009-08-13

申请号：CA2713862

申请日：2008-11-11

Applicant: QUALCOMM INC

Inventor： BORRAN MOHAMMAD J ,  KHANDEKAR AAMOD ,  BHUSHAN NAGA ,  SAMPATH ASHWIN ,  GOROKHOV ALEXEI ,  AGRAWAL AVNEESH ,  PALANKI RAVI ,  HORN GAVIN B

IPC: H04W52/24 ,  H04W52/34

Abstract: Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal.

公开(公告)号：CA2712633A1

公开(公告)日：2009-08-13

申请号：CA2712633

申请日：2009-01-27

Applicant: QUALCOMM INC

Inventor： AGRAWAL AVNEESH ,  KHANDEKAR AAMOD D ,  BHUSHAN NAGA ,  GOROKHOV ALEXEI Y ,  PALANKI RAVI

IPC: H04W72/08

Abstract: Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.

公开(公告)号：AU2009210529A1

公开(公告)日：2009-08-13

申请号：AU2009210529

申请日：2009-01-27

Applicant: QUALCOMM INC

Inventor： AGRAWAL AVNEESH ,  BHUSHAN NAGA ,  KHANDEKAR AAMOD D ,  PALANKI RAVI

IPC: H04W16/10

公开(公告)号：AU2009210527A1

公开(公告)日：2009-08-13

申请号：AU2009210527

申请日：2009-01-27

Applicant: QUALCOMM INC

Inventor： PALANKI RAVI ,  GOROKHOV ALEXEI Y ,  BHUSHAN NAGA ,  AGRAWAL AVNEESH ,  KHANDEKAR AAMOD D

IPC: H04W72/08

公开(公告)号：AU2009209060A1

公开(公告)日：2009-08-06

申请号：AU2009209060

申请日：2009-01-30

Applicant: QUALCOMM INC

Inventor： GOROKHOV ALEXEI ,  JI TINGFANG ,  AGRAWAL AVNEESH ,  KHANDEKAR AAMOD

IPC: H04W36/30 ,  H04W36/20 ,  H04W36/22 ,  H04W36/36

公开(公告)号：AU2008349497A1

公开(公告)日：2009-08-06

申请号：AU2008349497

申请日：2008-09-04

Applicant: QUALCOMM INC

Inventor： PRAKASH RAJAT ,  ULUPINAR FATIH ,  KHANDEKAR AAMOD ,  BHUSHAN NAGA ,  GUPTA RAJARSHI ,  HORN GAVIN B ,  SAMPATH ASHWIN ,  AGRAWAL AVNEESH ,  AGASHE PARAG A ,  GOROKHOV ALEXEI ,  PALANKI RAVI

IPC: H04W68/12

公开(公告)号：NZ552071A

公开(公告)日：2009-07-31

申请号：NZ55207105

申请日：2005-06-07

Applicant: QUALCOMM INC

Inventor： AGRAWAL AVNEESH ,  JULIAN DAVID JONATHAN ,  SUTIVONG ARAK

IPC: H04B7/005 ,  H04L1/00 ,  H04L1/20

Abstract: An apparatus for performing power control in a communication system comprises: means for receiving a codeword via a first wireless link; means for computing an indication of confidence that the received codeword is correct where the indication is based on a determination of the Euclidean distance between the received codeword and each of a set of possible valid codeword; means for generating a message to adjust a power of the communication system based on whether the computed indication of confidence was within an erasure threshold; and means for transmitting said message on second wireless link.

公开(公告)号：AT436140T

公开(公告)日：2009-07-15

申请号：AT05725049

申请日：2005-03-07

Applicant: QUALCOMM INC

Inventor： NAGUIB AYMAN ,  AGRAWAL AVNEESH

IPC: H04L27/26 ,  G11C5/00 ,  H04B7/005 ,  H04J99/00

Abstract: Systems and methods for controlling transmission power are provided. The systems and methods vary the power of a signal provided to a power amplifier based upon the location of a frequency or frequencies of signals to be transmitted within the transmission frequency band, the location of a hop region within the transmission frequency band, the bandwidth of signals to be transmitted, or combinations of these approaches.