Enhanced block acknowledgement

A technology of block confirmation and block confirmation request, which is applied in the direction of instruments, diversity/multi-antenna systems, digital transmission systems, etc., and can solve the problems that the system cannot work efficiently and reduce system capacity, etc.

Active Publication Date: 2007-11-14
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Without resource management, the capacity of the sys...

Method used

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  • Enhanced block acknowledgement
  • Enhanced block acknowledgement
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Examples

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Embodiment Construction

[0043] The exemplary embodiments disclosed herein, as well as other exemplary embodiments, support efficient operation in conjunction with a very high bit rate physical layer of a wireless LAN (or similar applications using emerging transport technologies). The exemplary WLAN supports bit rates in excess of 100 Mbps (megabits per second) within a 20 MHz bandwidth. Various alternative WLANs are also supported.

[0044] Various exemplary embodiments preserve the simplicity and robustness of distributed cooperative operation of legacy WLAN systems, eg, they are 802.11(a-e). The advantages of various embodiments can be achieved while maintaining backward compatibility with these legacy systems. (It should be noted that in the following description, the 802.11 system is described as an exemplary legacy system. Those skilled in the art will find that these modifications are also compatible with other systems and standards.)

[0045] An exemplary WLAN may include a subnetwork proto...

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Abstract

Embodiments disclosed herein address the need in the art for enhanced block acknowledgement. In one embodiment, a receiver indicates a decoding delay for a maximum size aggregate frame in Block Ack negotiation, which may be used by a transmitter to determine to which Block Ack Request a Block Acknowledgement is responsive. In another embodiment, a Transmission Sequence Number (TSN) may be included in a Block Ack Request. The receiver includes the TSN in the corresponding Block Ack response. This allows the transmitter to determine which frames are ''in transit.'' The TSN may be used to identify blocks. In another embodiment, a TSN may be associated with one or more transmitted frames. While, the TSN is not transmitted with the Block Ack Request, the transmitter may determine which TSN corresponds with a Block Ack response in accordance with acknowledgements contained therein. Combinations of these techniques may be deployed. Various other aspects are also presented.

Description

[0001] Priority claims under 35 U.S.C. §119 [0001] This patent application claims priority to Provisional Application No. 60 / 616,335, filed October 5, 2004, entitled "Method and Apparatus for Control Messaging in Wireless Networks" right, Provisional Application No. 60 / 616,335 has been assigned to the assignee of the present invention, and is hereby expressly incorporated by reference into this application. field of invention [0002] The present invention relates generally to wireless communications and, more particularly, to enhanced block acknowledgment. Background technique [0003] In order to provide various communications such as voice and data, wireless communication systems are widely deployed. A typical wireless data system or network provides multiple users with access to one or more shared resources. A system may use multiple access technologies, such as Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM), Code Division Multiplexing (CDM),...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/18H04W28/04H04W84/12
CPCH04L1/1887H04L1/1835H04L1/1848H04B7/02H04L1/1854H04L1/1685H04L1/1621H04B7/0417H04L1/1664H04L1/1614H04B7/066H04L1/16G08C25/02H04L1/18
Inventor S·南达
Owner QUALCOMM INC
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