Increasing reliable data throughput in a wireless network

• US 9,794,758 B2
• Filed: 12/22/2015
• Issued: 10/17/2017
• Est. Priority Date: 11/05/2004
• Status: Active Grant

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: Ruckus Wireless, Inc. (CommScope Holding Company, Inc.)
• Inventors: Kish, William S., Chanak, John
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): KAO, WEI PO ERIC
• Application Number:
  US14/979,018
• Publication Number:
  US 20160127876A1
• Time in Patent Office: 665 Days
• Field of Search: 370229, 370235, 370236, 370315, 370328, 370338, 370400, 370401, 370428, 370492, 370501
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 80/06 Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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.

Claims

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.