-
-
42.发明专利
公开(公告)号：IN2260CHN2014A
公开(公告)日：2015-06-19
申请号：IN2260CHN2014
申请日：2014-03-25
Applicant: QUALCOMM INC
Inventor： SORIAGA JOSEPH B , LOTT CHRISTOPHER GERARD , ATTAR RASHID AHMED AKBAR
IPC: H04W88/08
Abstract: A base station simulcast controller module apparatus (1402) is adapt ed to send a message to a base station controller (1406) to direct the base station controller (1406) to send downlink packets across each of a plurality of base stations (1404A 1404B and 1404C) for simul cast with a common sector identity ID. One or more simulcasting con trol instructions may be sent to the plurality of base stations (1404A 1404B and 1404C) to facilitate simulcasting with the sector ID from the plurality of base stations (1404A 1404B and 1404C).
-
公开(公告)号：BRPI0711790A2
公开(公告)日：2011-12-27
申请号：BRPI0711790
申请日：2007-05-30
Applicant: QUALCOMM INC
Inventor： LEE YEN-CHI , LOTT CHRISTOPHER GERARD , TINNAKORNSRISUPHAP PEERAPOL , GUPTA VIKRAM
Abstract: The disclosure relates to video rate adaptation techniques that may use information from a medium access control (MAC) layer and radio link protocol (RLP) layer. The techniques may greatly reduce video delay by adjusting video encoding rate. For real-time video telephony (VT) applications, these techniques may provide graceful quality degradation and improve user experience, especially when the channel conditions degrade.
-
公开(公告)号：AU2006304947B2
公开(公告)日：2010-08-19
申请号：AU2006304947
申请日：2006-10-20
Applicant: QUALCOMM INC
Inventor： LOTT CHRISTOPHER GERARD , TINNAKORNSRISUPHAP PEERAPOL , LEE YEN-CHI , GUPTA VIKRAM
IPC: H04N7/24 , H04N19/89 , H04N19/895
Abstract: The disclosure relates to reverse link lower layer assisted video error control. A method may encode video data, form a packet with the encoded video data, and transmit the packet across a wireless channel to an access network. A medium access control (MAC) layer may receive a negative acknowledgement (NAK) from the access network. The method may determine whether the received NAK is associated with a packet that contains video data. If the received NAK is associated with a packet that contains video data, the method may perform error control.
-
公开(公告)号：CA2733580A1
公开(公告)日：2010-03-04
申请号：CA2733580
申请日：2009-08-27
Applicant: QUALCOMM INC
Inventor： ATTAR RASHID AHMED AKBAR , GHOSH DONNA , LOTT CHRISTOPHER GERARD
Abstract: In a wireless communications system, a serving base station performs outer and closed power control for an overhead channel and a traffic channel for data, either of which can carry an acknowledgement (Ack) channel and Channel Quality Indicator (CQI) channel on an uplink from User Equipment (UE). In an exemplary aspect, data packet communication is implemented in 3GPP LTE Rel. 8 wherein the uplink has a Single Carrier Frequency Division Multiplex (SC-FDM) uplink waveform. The UE performs open loop power control by a determining transmit power spectral density value by using received energy per symbol for a reference signal.
-
Patent Agency Ranking
公开(公告)号：AU2009227851A1
公开(公告)日：2009-11-05
申请号：AU2009227851
申请日：2009-10-19
Applicant: QUALCOMM INC
Inventor： LOTT CHRISTOPHER GERARD , ATTAR RASHID AHMED
Abstract: Reverse Link (RL) data rate allocation in a High Data Rate (such as 1xEV-DO) system as a function of Forward Link (FL) channel quality. Rate shaping of a throughput profile for multiple Access Terminals (ATs) is performed by adjusting transition probabilities associated with a data rate allocation algorithm. The RL maximum data rate per AT is adjusted to reduce the loading in a designated area and result in rate shaping of the cell and/or sector. In one embodiment, the maximum data rates are adjusted as a function of the FL Signal to Interference and Noise Ratio (SINR), such as measured per serving sector or as a captured sum total of FL SINR. In still another embodiment, the maximum data rates are adjusted as a function of differences in riseover-thermal values between neighboring sectors.
-
公开(公告)号：CA2710328A1
公开(公告)日：2009-07-16
申请号：CA2710328
申请日：2009-01-09
Applicant: QUALCOMM INC
Inventor： LEUNG NIKOLAI K , LOTT CHRISTOPHER GERARD , SUNDARRAMAN CHANDRASEKHAR THERAZHANDUR , TINNAKORNSRISUPHAP PEERAPOL , SPINDOLA SERAFIN DIAZ
IPC: H04L12/56
Abstract: In a particular embodiment, a method is disclosed that includes receiving a feedback message at a transmitter, the feedback message including an indication of a magnitude of congestion and a sustainable rate of data transmission at a receiver. The method also includes determining a decongestion rate and a decongestion time based on at least one of the sustainable rate of data transmission and the magnitude of congestion when the magnitude of congestion satisfies a threshold value. The method further includes sending data at the decongestion rate from the transmitter to the receiver for the decongestion time. The method also includes adjusting a data transmission rate at the transmitter to the sustainable rate of data transmission after the decongestion time is ended.
-
公开(公告)号：NZ565231A
公开(公告)日：2009-05-31
申请号：NZ56523105
申请日：2005-02-16
Applicant: QUALCOMM INC
Inventor： AU JEAN PUT LING , LOTT CHRISTOPHER GERARD , BHUSHAN NAGA , ATTAR RASHID AHMED AKBAR
Abstract: A method of controlling reverse link interference in a sector of a base station of a CDMA communication system is provided. The method includes determining for each of a number of access terminals in communication with the base station a noise power spectral density at the base station (i) due to a thermal noise power spectral density and (ii) due to a sum of chip energy of selected channels of the access terminals that are power controlled by the sector. By this a number of determined noise power spectral densities is obtained, one for each access terminal in communication with the base station. The method also includes determining a maximum noise power spectral density among the determined noise power spectral densities and controlling reverse link power of one or more of the access terminals that are power controlled by the sector based upon the maximum noise power spectral density.
-
公开(公告)号：NO20082301A
公开(公告)日：2008-07-09
申请号：NO20082301
申请日：2008-05-20
Applicant: QUALCOMM INC
Inventor： LOTT CHRISTOPHER GERARD , TINNAKORNSRISUPHAP PEERAPOL , LEE YEN-CHI , GUPTA VIKRAM
IPC: H04N7/24 , H04N7/64 , H04N19/895
CPC classification number: H04N21/6181 , H04N19/895 , H04N21/2662 , H04N21/6131 , H04N21/6473 , H04N21/64776 , H04N21/6583
Abstract: The disclosure relates to reverse link lower layer assisted video error control. A method may encode video data, form a packet with the encoded video data, and transmit the packet across a wireless channel to an access network. A medium access control (MAC) layer may receive a negative acknowledgement (NAK) from the access network. The method may determine whether the received NAK is associated with a packet that contains video data. If the received NAK is associated with a packet that contains video data, the method may perform error control.
-
公开(公告)号：HK1102044A1
公开(公告)日：2007-11-02
申请号：HK07109811
申请日：2007-09-10
Applicant: QUALCOMM INC
Inventor： AU JEAN PUT LING JL , LOTT CHRISTOPHER GERARD , BHUSHAN NAGA , ATTAR RASHID AHMED AKBAR RA
IPC: H04B7/005 , H04L20100101 , H04L12/56 , H04W20100101 , H04W16/14 , H04W24/00 , H04W28/22 , H04W52/14
Abstract: In a wireless communication system, an apparatus and a method are provided for controlling reverse link interference among access terminals that are power controlled by a sector of a base station. In an embodiment, the maximum effective noise power spectral density is used as a parameter for controlling the level of reverse link loading, by setting a reverse activity bit (RAB) to signal the access terminals to reduce their data rates in order to minimize interference between the access terminals if the maximum effective noise power spectral density is above a predetermined threshold.
-
-
-
-
-
-
-
-
-
Search Results
108
records
(took 0.058 seconds)
