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公开(公告)号：AU2008265717A1
公开(公告)日：2008-12-24
申请号：AU2008265717
申请日：2008-06-18
Applicant: QUALCOMM INC
Inventor： MEYLAN ARNAUD
Abstract: Systems and methodologies are described that facilitate management of data delivery and processing in a wireless communication system and, more particularly, that support Packet Data Convergence Protocol (PDCP) reordering of packets during a handoff operation. Various aspects described herein can mitigate processing delays associated with PDCP reordering of packets at handoff by determining, communicating, and/or otherwise identifying one or more indicators during handoff that facilitate lossless communication of packets to a terminal with minimal delay. These indicators can include sequence number information for a source Node B, information regarding a step or jump size applied to a sequence number by a target Node B, a reset command, and/or other suitable indicators.
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公开(公告)号：CA2683533A1
公开(公告)日：2008-11-13
申请号：CA2683533
申请日：2008-05-01
Applicant: QUALCOMM INC
Inventor： MEYLAN ARNAUD , CHAPONNIERE ETIENNE F
Abstract: A data packet communication system employs data encryption in a packet da ta convergence protocol (PDCP) and radio link control (RLC) in Layer 2 of tr ansmission between a transmitter (TX) and a receiver (RX). A single sequence number is used for both the PDCP and RLC to reduce overhead by signaling a TX PDCP first ciphering sequence number to the RX prior to encrypted data pa cket communication. A sequence number accompanies each RLC PDU, which can en compass concatenated or segmented service data units (SDUs) from the higher layer PDCP. This sequence number is sufficient for the RLC to perform re-ord ering, gap detection, retransmission, etc., while also allowing the RX upper layer PDCP to reconstruct a sequenced value used to encrypt content.
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公开(公告)号：AU2008247661A1
公开(公告)日：2008-11-13
申请号：AU2008247661
申请日：2008-05-01
Applicant: QUALCOMM INC
Inventor： CHAPONNIERE ETIENNE F , MEYLAN ARNAUD
Abstract: A data packet communication system employs data encryption in a packet data convergence protocol (PDCP) and radio link control (RLC) in Layer 2 of transmission between a transmitter (TX) and a receiver (RX). A single sequence number is used for both the PDCP and RLC to reduce overhead by signaling a TX PDCP first ciphering sequence number to the RX prior to encrypted data packet communication. A sequence number accompanies each RLC PDU, which can encompass concatenated or segmented service data units (SDUs) from the higher layer PDCP. This sequence number is sufficient for the RLC to perform re-ordering, gap detection, retransmission, etc., while also allowing the RX upper layer PDCP to reconstruct a sequenced value used to encrypt content.
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公开(公告)号：CA2833883A1
公开(公告)日：2008-09-25
申请号：CA2833883
申请日：2007-10-16
Applicant: QUALCOMM INC
Inventor： SURINENI SHRAVAN K , MEYLAN ARNAUD , DASSU AJAY
Abstract: Techniques for improving power saving by stations in wireless networks are described. In an aspect, a source station sends a frame with a buffer status for a recipient station during an awake time for both stations and sends one or more data frames to the recipient station as indicated by the buffer status. The recipient station knows how many data frames to expect based on the buffer status and can go to sleep after receiving the expected number of data frames. In another aspect, a source station receives a frame with information on transmission opportunity (TXOP) bursting receive capability of a recipient station operating in a power save mode. The source station performs channel access at the start of a TXOP and sends multiple data frames in the TXOP to the recipient station based on the TXOP bursting receive capability of the recipient station.
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公开(公告)号：CA2679319A1
公开(公告)日：2008-09-25
申请号：CA2679319
申请日：2008-03-17
Applicant: QUALCOMM INC
Inventor： HO SAI YIU DUNCAN , CHAPONNIERE ETIENNE F , MEYLAN ARNAUD
Abstract: A data packet communication system employs radio link control (RLC) trans mission between a transmitter and a receiver with an Automatic Repeat Reques t (ARQ) arrangement whereby polling of the receiver is accomplished with red uced amount of redundantly transmitted data, such as between an access node and terminal. Upon a polling event, such as emptying of a transmission buffe r of the transmitter, expiration of a polling timer, or reaching a radio lin k control (RLC) protocol data units (PDUs) count threshold, the transmitter sends a polling command to the receiver. This polling command is smaller tha n any of the RLC PDUs, which are conventionally resent with a polling bit se t to evoke a STATUS PDU from the receiver. With evolving communication stand ards tending toward larger PDUs, such as in excess of a kilobyte for HSPA+ ( High-Speed Packet Access Evolution) and 3GPP LTE (Long Term Evolution), this inefficiency can be of increasing impact.
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Patent Agency Ranking
公开(公告)号：CA2662389A1
公开(公告)日：2008-04-03
申请号：CA2662389
申请日：2007-09-28
Applicant: QUALCOMM INC
Inventor： JAYARAM RANJITH , NANDA SANJIV , DESHPANDE MANOJ M , AGGARWAL ALOK , KO NORMAN , KRISHNA SENDIL , MEYLAN ARNAUD , SRIDHARA VINAY
Abstract: Methods and apparatus for determining the quality of service of a network are disclosed. A disclosed methodology for determining quality of service f or a network includes determining at least two metrics reflective of network parameters in at least two different protocol layers of the communication n etwork. The metrics are then compared with respective threshold values, and quality of service for the network is determined based on the comparison of the metrics with the respective threshold values.. Corresponding apparatus e xecuting the methodology are also disclosed.
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公开(公告)号：CA2756567A1
公开(公告)日：2007-03-22
申请号：CA2756567
申请日：2006-09-12
Applicant: QUALCOMM INC
Inventor： MEYLAN ARNAUD , NANDA SANJIV
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公开(公告)号：CA2567039A1
公开(公告)日：2006-01-05
申请号：CA2567039
申请日：2005-05-05
Applicant: QUALCOMM INC
Inventor： MEYLAN ARNAUD , ABRAHAM SANTOSH , WALTON JAY RODNEY
Abstract: A method of selecting a transmission mode for data transmission in a wireless communication system is described. The method comprising determining the age of channel information available for use to transmit data via a wireless channel, comparing the age of the channel information against a threshold, and selecting a steered mode when the age of the channel information is less than or equal to the threshold and selecting an unsteered mode when the age of the channel information is greater than the threshold, and processing data in accordance with the selected transmission mode wherein the channel information is used for processing when the steered mode is selected and the channel information is not used for processing when the unsteered mode is selected. Further, a corresponding apparatus is described.
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公开(公告)号：AU2003295608A1
公开(公告)日：2004-06-15
申请号：AU2003295608
申请日：2003-11-17
Applicant: QUALCOMM INC
Inventor： MEYLAN ARNAUD , HO SAI YIU DUNCAN , WEI YONGBIN
Abstract: A group of data frames from a plurality of communication channels is received. At least one idle frame including a sequence number of a last frame in the group of data frames is then received. A delay period of time is allowed to elapse after receiving the idle frame before sending a negative acknowledgement message, if at least one data frame is missing.
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公开(公告)号：CA2506857A1
公开(公告)日：2004-06-03
申请号：CA2506857
申请日：2003-11-17
Applicant: QUALCOMM INC
Inventor： WEI YONGBIN , HO SAI YIU DUNCAN , MEYLAN ARNAUD
Abstract: A group of data frames from a plurality of communication channels is receive d. At least one idle frame including a sequence number of a last frame in the group of data frames is then received. A delay period of time is allowed to elapse after receiving the idle frame before sending a negative acknowledgement message, if at least one data frame is missing.
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