Efficient TCP ACK prioritization in wireless networks

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9049017
APP PUB NO 20080080464A1
SERIAL NO

11542514

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An improved acknowledgement (ACK) prioritization scheme is disclosed that provides ACKs with a lower block error rate (BLER) (as opposed to data) over an air interface, provides a separate radio bearer for ACKs, and successively increases the priority of ACKs for each retransmission required. A lower BLER target for ACKs may be achieved by an increase in transmit (Tx) power, additional coding for the radio bearer, or the use of diversity or hybrid automatic repeat request (ARQ) schemes. After packets are identified as either data or an ACK, they are sent to separate Tx buffers over separate radio bearers. Because the ACKs are transmitted over separate bearers and Tx buffers as compared to the data, ACKs are never queued behind the data, and are effectively prioritized as compared to the data. When retransmissions are required for an ACK packet, the scheduling prioritization is increased successively for each ACK retransmission required.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SONY CORPORATIONTOKYO, JP25795

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Speight, Timothy J Bristol, GB 16 50

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TELECOMMUNICATIONS RESEARCH LABORATORIES (1)
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SEIKO EPSON CORPORATION (1)
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SONY CORPORATION (2)
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HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (1)
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CISCO TECHNOLOGY, INC. (1)
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ALCATEL-LUCENT USA INC. (1)
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BLACKBERRY LIMITED (1)
* 7177371 Methods and apparatus for transmitting and receiving data over a communications network in the presence of interference 16 2002
 
SAMSUNG ELECTRONICS CO., LTD. (2)
* 2004/0037,224 Apparatus and method for retransmitting data in a mobile communication system 87 2003
* 2005/0201,319 Method for transmission of ACK/NACK for uplink enhancement in a TDD mobile communication system 45 2005
 
NOKIA TECHNOLOGIES OY (1)
* 2003/0021,243 Method for determining whether to perform link adaptation in WCDMA communications 35 2001
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (1)
* 2004/0003,105 Optimised receiver-initiated sending rate increment 21 2003
 
InterDigital Technology Corporation (1)
* 2006/0007,880 Method and apparatus for dynamically allocating H-ARQ processes 7 2005
 
RPX CLEARINGHOUSE LLC (1)
6894974 Method, apparatus, media, and signals for controlling packet transmission rate from a packet source 77 2000
 
ALACRITECH, INC. (1)
* 2002/0095,519 TCP/IP offload device with fast-path TCP ACK generating and transmitting mechanism 116 2002
 
TEXAS INSTRUMENTS INCORPORATED (1)
2003/0074,465 ADSL downloading with priority transmit queue 27 2002
 
GOOGLE TECHNOLOGY HOLDINGS LLC (1)
2004/0223,507 ACK/NACK determination reliability for a communication device 60 2003
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
* 2003/0031,203 Mobile communication system and radio communication method 13 2002
* Cited By Examiner

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