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公开(公告)号：CA2626794C
公开(公告)日：2013-04-02
申请号：CA2626794
申请日：2006-10-20
Applicant: QUALCOMM INC
Inventor： LEE YEN-CHI , LOTT CHRISTOPHER GERARD , TINNAKORNSRISUPHAP PEERAPOL , GUPTA VIKRAM
IPC: H04N19/89 , H04N19/895 , H04W28/04
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.
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公开(公告)号：BRPI0617711A2
公开(公告)日：2011-08-02
申请号：BRPI0617711
申请日：2006-10-20
Applicant: QUALCOMM INC
Inventor： LEE YEN-CHI , LOTT CHRISTOPHER GERARD , TINNAKORNSRISUPHAP PEERAPOL , 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.
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公开(公告)号：RU2414091C2
公开(公告)日：2011-03-10
申请号：RU2008152806
申请日：2007-05-30
Applicant: QUALCOMM INC
Inventor： LI JEN-CHI , LOTT KRISTOFER DZHERARD , TINNAKORNSRISUPKHAP PIRAPOL , GUPTA VIKRAM
Abstract: Изобретениеотноситсяк кодированиювидеои, болееконкретно, кспособамадаптациискоростикодированиявидеок состояниямобратнойлиниисвязи. Техническимрезультатомявляетсяуменьшениезадержкивидеос помощьюрегулированияскоростикодированиявидео, чтообеспечиваетизящноеснижениекачестваи улучшениевпечатленийпользователя, особеннокогдасостоянияканалаухудшаются. Техническийрезультатдостигаетсятем, чтооцениваютпропускнуюспособностьвидеонаоснованииразмераочередипотокавидеопротоколарадиоканала (RLP) втерминаледоступаи кодируютвидеоданныес использованиемоцененнойпропускнойспособностивидео. 7 н. и 26 з.п. ф-лы, 7 ил.
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公开(公告)号：AU2009244257A1
公开(公告)日：2009-11-12
申请号：AU2009244257
申请日：2009-05-07
Applicant: QUALCOMM INC
Inventor： ZHANG DANLU , TINNAKORNSRISUPHAP PEERAPOL , GUPTA VIKRAM , REZAIIFAR RAMIN , YAVUZ MEHMET
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.
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公开(公告)号：CA2651513A1
公开(公告)日：2007-12-06
申请号：CA2651513
申请日：2007-05-30
Applicant: QUALCOMM INC
Inventor： GUPTA VIKRAM , LEE YEN-CHI , LOTT CHRISTOPHER GERARD , TINNAKORNSRISUPHAP PEERAPOL
Abstract: The disclosure relates to video rate adaptation techniques that may use i nformation from a medium access control (MAC) layer and radio link protocol (RLP) layer. The techniques may greatly reduce video delay by adjusting vide o encoding rate. For real-time video telephony (VT) applications, these tech niques may provide graceful quality degradation and improve user experience, especially when the channel conditions degrade.
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Patent Agency Ranking
公开(公告)号：ES2743806T3
公开(公告)日：2020-02-20
申请号：ES14167754
申请日：2009-09-18
Applicant: QUALCOMM INC
Inventor： PALANKI RAVI , AGASHE PARAG A , GUPTA VIKRAM , GUPTA RAJARSHI , BHUSHAN NAGA
IPC: H04W56/00
Abstract: Un procedimiento para sincronizar un sistema de comunicación inalámbrica, que comprende: determinar un nivel de estrato (246) de una estación base síncrona (102, 104), con el nivel de estrato correspondiente al número más pequeño de estaciones base, incluido un nodo de origen de la temporización global y cero o más estaciones base intermedias entre la estación base síncrona y el nodo de origen de la temporización global; y supervisar las señales de al menos una de una estación base vecina o el nodo de origen de la temporización global durante una duración del silencio (248) determinada a partir del nivel de estrato; recibir un tiempo global en toda la red (450) desde al menos una estación base vecina o el nodo de origen de la temporización global durante la duración del silencio.
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公开(公告)号：RU2478262C2
公开(公告)日：2013-03-27
申请号：RU2011115200
申请日：2009-09-18
Applicant: QUALCOMM INC
Inventor： PALANKI RAVI , AGASHE PARAG A , GUPTA VIKRAM , GUPTA RADZHARSHI , BKHUSHAN NAGA
IPC: H04W56/00
Abstract: Изобретениеотноситсяк системамсвязи. Раскрываетсяспособсинхронизациисистемыбеспроводнойсвязи. Длительностьпаузыдлябазовойстанцииопределяетсянаосновевремени, требуемогодляполученияилиподдержаниясинхронизациисоседнейбазовойстанцией. Всепередачиизбазовойстанцииприостанавливаютсянапротяжениидлительностипаузы. Уровеньмногочисленныхбазовыхстанцийможетприостанавливатьпередачив однои тожевремя, темсамымподавляяпомехи, чтоявляетсятехническимрезультатом. 4 н. и 72 з.п. ф-лы. 13 ил.
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公开(公告)号：ZA201102420B
公开(公告)日：2011-12-28
申请号：ZA201102420
申请日：2011-03-31
Applicant: QUALCOMM INC
Inventor： PALANKI RAVI , GUPTA VIKRAM , BHUSHAN NAGA , AGASHE PARAG A , GUPTA RAJARSHI
IPC: H04W20090101
Abstract: A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference.
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公开(公告)号：CA2736101A1
公开(公告)日：2010-03-25
申请号：CA2736101
申请日：2009-09-18
Applicant: QUALCOMM INC
Inventor： PALANKI RAVI , AGASHE PARAG A , GUPTA VIKRAM , GUPTA RAJARSHI , BHUSHAN NAGA
IPC: H04W56/00
Abstract: A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference.
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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.
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