Superframe protocol packet data unit format having multirate packet aggregation for wireless systems

A technology of grouping data units and protocol data units, applied in the direction of transmission system, data exchange through path configuration, electrical components, etc.

Inactive Publication Date: 2007-04-25
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this need must be addressed with proper consideration of Quality of Service (QoS) parameters, which include not only bandwidth (throughput) but also latency, latency jitter, and packet loss rates

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  • Superframe protocol packet data unit format having multirate packet aggregation for wireless systems
  • Superframe protocol packet data unit format having multirate packet aggregation for wireless systems
  • Superframe protocol packet data unit format having multirate packet aggregation for wireless systems

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Embodiment Construction

[0023] Those skilled in the art should understand that the following description is provided for purposes of illustration and not limitation. A skilled artisan understands that there are many variations within the spirit of the invention and scope of the appended claims. The current description omits unnecessary detail of known functions and operations in order not to obscure the subtleties of the present invention.

[0024] FIG. 1 shows a typical example of a system for transmitting multi-rate aggregated packets according to the present invention. Again, it is emphasized that a typical system will be much more complex than what is shown and may include many different devices communicating in wired or wireless fashion. The system shown in FIG. 1 includes a plurality of nodes 112 , 113 , 114 and a station 115 . At least one of said plurality of nodes is adapted to receive a superframe 125 comprising a packet aggregation according to the invention.

[0025] Also, one node 114...

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Abstract

A superframe, method and system for transmission of an aggregation of packets at multiple rates includes a header (300) comprising a preamble (305) and a PHY layer convergence protocol (310), a plurality of MAC management protocol data units (205), a beacon; and a super protocol service data unit header (315). A plurality of multi-rate aggregated packets (327) is grouped together in the superframe to provide power savings for the receiving nodes that can receive the packets in a reduced number of transmissions. Grouping the packets according to the MAC destinations also provides for shortening reception times by the nodes, resulting in power savings. The superframe permits the MAC service data units to be delivered to each of the nodes, resulting in power savings. The superframe permits the MAC service data units to be delivered to each of the nodes at different PHY rates to maximize efficiency.

Description

technical field [0001] The present invention relates to apparatus and methods designed to use a form of data transmission with a superframe of multiple packets. More particularly, the present invention relates to improvements and power savings for Multi-Receiver Aggregation (MRA) data rate transmissions. Background technique [0002] The physical layer of current wireless systems, such as LANs operating under access protocols such as IEEE 802.11, has several different modulation and coding schemes. The choice of these schemes usually depends on the maximum data rate, assuming that the packet error rate is less than a given threshold. [0003] For example, Task Group N of the current IEEE 802.11 specification is developing new physical (PHY) and medium access control (MAC) specifications for high data rate WLANs. Several industry groups are currently preparing the Task Group N proposal, among them the industry association TGn Sync. The current specification of TGn Sync doe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L29/06
CPCY02B60/33Y02B60/31Y02D30/70
Inventor P·C·李P·加格M·高希
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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