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Efficient uplink sdma operation

A technology of space division multiple access and wireless equipment, which is applied in the field of communication management and can solve the problems of inefficient polling process and so on.

Active Publication Date: 2014-07-30
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing systems use a TDMA MAC based polling process, resulting in an inefficient polling process

Method used

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  • Efficient uplink sdma operation
  • Efficient uplink sdma operation
  • Efficient uplink sdma operation

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] definition

[0019] Access Point (AP): Any entity that has station (STA) functionality and provides associated STAs access to distribution services via a WM.

[0020] Mobile Station (MS): A type of STA that communicates using a network while moving.

[0021] Station (STA): Any device containing an IEEE 802.11 compliant Medium Access Control (MAC) and Physical Layer (PHY) interface to and from a Wireless Medium (WM).

[0022] Frame: The basic unit of data transmission between stations. "Frame" and "packet" are used interchangeably.

[0023] Wireless Medium (WM): The medium used to enable the transfer of protocol data units (PDUs) between peer physical layer (PHY) entities of a wireless local area network (LAN).

[0024] Interframe Space (IFS): A predetermined time interval between frames as defined in the IEEE 802.11-2007 specification, where five different IFSs are defined in IEEE 802.11 to provide priority levels for accessing the wireless medium.

[0025] Uplink S...

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PUM

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Abstract

According to various embodiments, a computer-implemented method is disclosed that allows an AP to efficiently poll various information from STAs belonging to an SDMA group. Each STA may utilize an uplink SDMA mechanism to transmit uplink frames.

Description

technical field [0001] The present disclosure relates generally to the field of wireless communications and, in particular, to management of communications in networks using uplink Spatial Division Multiple Access (SDMA). Background technique [0002] Uplink SDMA (UL SDMA) is an advanced signaling technique used in wireless communication systems that allow multiple mobile stations (STAs) to communicate with an access point (AP), which shares the same Multiple antenna elements for transmission time and frequency. The AP is configured to receive a combined signal simultaneously transmitted from multiple STAs via multiple spatially separated antenna elements, and to separate the received signal into an independent signal from each STA through appropriate signal processing. Also, the AP may transmit directional radio signals to intended STAs via multiple spatially separated antenna elements in order to suppress interference and increase signal-to-noise ratio. [0003] One of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B7/08
CPCH04L1/1685H04L1/1671H04B7/0697H04W74/06H04B7/0452H04L1/1664H04L1/1854H04L5/0053H04L1/1621H04L5/0023H04L5/0055H04W72/21H04W72/0446H04W72/0453
Inventor 宫效红R·J·斯泰西
Owner INTEL CORP