Increasing reliable data throughput in a wireless network

Patent metadata

Field	Value
Publication number	US-9794758-B2
Application number	US-201514979018-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Nov 5, 2004
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

Systems and methods for improving data transmission rates in communication networks are disclosed. In an 802.11 wireless communication network, where a source node of the wireless network transmits TCP data to a destination node of the wireless network, the destination node does not transmit TCP acknowledgments (ACKs) for the TCP data if 802.11 ACKs indicate that the destination node received the TCP data. If a source outside the wireless network transmits TCP data to the destination node within the wireless network through an intermediate device, such as an access point, the destination node suppresses transmitting TCP ACKs. The intermediate device transmits TCP ACKs as proxy for the destination node to the source. The intermediate device also suppresses TCP ACKs where a source node within the wireless network sends the TCP data to a destination node outside of the wireless network.

First claim

What is claimed is:

1. An access point device in a wireless local area network comprising:
a transmitter for transmitting a first data packet, according to a higher layer protocol, received from a source network node^ to a destination network node in the wireless local area network; and
a receiver for receiving a first acknowledgment, according to a lower layer protocol, transmitted from the destination network node after receipt of the first data packet by the destination network node, wherein
the transmitter determines that the destination network has received the first data packet without error based on the first acknowledgment received by the receiver, wherein the transmitter does not wait for a subsequent acknowledgment from the destination network related to the receipt of the first data packet before transmitting a second acknowledgment, according to the higher layer protocol, to the source network node based on the first acknowledgment received by the receiver.

2. The access point device of claim 1 , further comprising an antenna apparatus and a RF communication apparatus.

3. The access point device of claim 2 , wherein the RF communication apparatus operates utilizing the 802.11g protocol.

4. The access point device of claim 1 , wherein the device is further configured to broadcast a beacon advertising a capability to generate transmission control protocol (TCP) acknowledgments based on 802.11 acknowledgments.

5. A wireless local area network device comprising:
a receiver for receiving data in a wireless link, according to a higher layer protocol, from a source network node in a wireless local area network;
a transmitter for transmitting a first acknowledgement to the source network node in said wireless link, according to a lower layer protocol, when said data is received by the receiver; and
a processor for preventing a higher layer protocol acknowledgment from being transmitted to the source network node in response to receiving the data and increasing a bandwidth of said wireless link for receiving more data from the source network by the receiver, wherein the receiver receives a second data from the source network node according to the higher layer protocol upon receipt of said first acknowledgement by the source network node, and wherein the wireless local area network device is a destination network node for receiving data packets from the source network node.

6. The wireless local area network device of claim 5 , wherein the source network node is an access point.

7. The wireless local area network device of claim 5 , wherein the data includes transmission control protocol (TCP) data.

8. The wireless local area network device of claim 5 , wherein the lower layer protocol includes an 802.11 protocol.

Assignees

• Ruckus Wireless Inc

Inventors

• Kish William S
• Chanak John

Classifications

• H04W88/04

  adapted for relaying to or from another terminal or user · CPC title

• H04L69/16

  Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04L69/163

  In-band adaptation of TCP data exchange; In-band control procedures · CPC title