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Methods and apparatuses for scheduling uplink request spatial division multiple access (rsdma) messages in an sdma capable wireless lan

A technology of space division multiplexing and equipment, which is applied in the field of communication systems and can solve problems such as low efficiency

Inactive Publication Date: 2012-01-25
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frequent scheduling of uplink SDMA can lead to inefficiency in the operation of the AP if only a few STAs participate in each uplink transmission

Method used

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  • Methods and apparatuses for scheduling uplink request spatial division multiple access (rsdma) messages in an sdma capable wireless lan
  • Methods and apparatuses for scheduling uplink request spatial division multiple access (rsdma) messages in an sdma capable wireless lan
  • Methods and apparatuses for scheduling uplink request spatial division multiple access (rsdma) messages in an sdma capable wireless lan

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Embodiment Construction

[0035]Various aspects of the uplink SDMA transmission process are described more fully below with reference to the accompanying drawings. The various aspects may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be as thorough and complete as possible. Based on the teachings herein, those skilled in the art should appreciate that the scope of a scheduler is intended to encompass any aspect of the invention described herein, whether implemented independently of or in conjunction with any other aspect of the invention. Any other aspects are implemented in combination. For example, any number of the aspects set forth herein can be used to implement an apparatus and / or practice a method. Additionally, the scope of the invention is intended to encompass those practiced using other structure, functionality, o...

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Abstract

An apparatus for scheduling uplink request spatial division multiple access (RSDMA) messages in an SDMA capable wireless LAN (304), including a processing system configured to receive requests for a spatial division multiplexed transmission from a plurality of nodes over a multiple access medium (312-1, 312-2, 312-3); and initiate the spatial division multiplexed transmission based on a metric related to one or more of the nodes (308), is disclosed. Another apparatus for wireless communications, including a processing system configured to generate data belonging to an access class having contention parameters; and precode at least a portion of the data for transmission over a spatial stream and enter into post backoff following the spatial stream transmission, is also disclosed. Methods for using the apparatuses are also disclosed.

Description

[0001] Claim of priority under 35 U.S.C. §119 [0002] This patent application claims that the title applied for on February 27, 2009 is "Method and Apparatus for Scheduling Uplink RSDMA Messages in a SDMA Capable Wireless Local Area Network (WLAN) for Scheduling Uplink RSDMA Messages in a SDMA Capable Wireless LAN), which is assigned to the present assignee and is hereby expressly incorporated herein by reference. technical field [0003] The following description relates generally to communication systems, and more particularly to methods and methods for scheduling uplink request space division multiple access (RSDMA) messages in a space division multiple access (SDMA) capable wireless local area network (LAN). equipment. Background technique [0004] In order to address the increased bandwidth requirements required by wireless communication systems, different schemes are being developed to allow multiple user terminals to communicate with a single access point by sharin...

Claims

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Application Information

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IPC IPC(8): H04W74/04H04W16/28H04W84/12
CPCH04W72/1205H04W72/046H04W74/0808H04W84/12H04W74/06H04B7/0697H04B7/0626H04W52/08H04L25/0224
Inventor 桑托什·P·亚伯拉罕维纳伊·斯里达拉
Owner QUALCOMM INC
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