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Multi-user uplink communication using EDCA with polling

A link and polling message technology, applied in the field of communication systems, can solve problems such as impact

Inactive Publication Date: 2012-11-21
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in certain configurations, uplink scheduling requires the AT to compete with the AP for channel access
In other words, the AP will act as another AT trying to gain access to the transport medium, thereby affecting all ATs trying to gain access

Method used

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  • Multi-user uplink communication using EDCA with polling
  • Multi-user uplink communication using EDCA with polling
  • Multi-user uplink communication using EDCA with polling

Examples

Experimental program
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Embodiment Construction

[0030] Various aspects of the novel systems, devices and methods are described more fully hereinafter with reference to the accompanying drawings. However, the teachings of this disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Based on the teachings herein, a person skilled in the art should realize that the protection scope of the present disclosure is intended to cover any aspect of the systems, devices and methods disclosed herein, regardless of whether they are independent of or combined with the present disclosure. in any other way. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects presented herein. Additionally, the scope of the present disclosure is intended to cover apparatus or methods that employ structures other than or different from the aspects of the disclosure presented herein , function or...

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Abstract

Simultaneous, multi-user uplink communication is scheduled in a wireless network (100) by transmitting a poll message (411) to a plurality of access terminals (403-406) in response to receiving a first request to transmit data (410) via uplink. The poll message (411) includes a solicitation for requests to transmit data from each of the plurality of access terminals (403-406). The poll message (411) also includes a medium reservation and schedule for transmission of the requests from the access terminals. Based on the requests received from the access terminals, a number of the access terminals (403, 404) are selected for simultaneous transmission of data (418, 419) via uplink. A transmit start message (416) is sent to each of the selected access terminals (403, 404) indicating when and for how long the selected access terminals (403, 404) may transmit data via uplink. After the data (418, 419) is received, a block ACK message (422, 423) is sent to each of the selected access terminals (418, 419) indicating successful simultaneous communication.

Description

[0001] Cross References to Related Applications [0002] Claiming Priority Based on 35 U.S.C. §119 [0003] This patent application claims provisional application No. 61 / 312,116, filed March 9, 2010, entitled "Multi-User Uplink Communication Using EDCA Augmented With Polling," which is assigned to the assignee of this application, and are expressly incorporated herein by reference in their entirety. technical field [0004] In general, the following description relates to communication systems and, in particular, to multi-user uplink communication in wireless networks. Background technique [0005] In order to cope with the increasing bandwidth requirements of wireless communication systems, different schemes are being developed to allow multiple access terminals to communicate with a single access point by sharing channel resources while simultaneously achieving high data throughput. Multiple-input or multiple-output (MIMO) technology represents one such approach, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/06H04W74/08
CPCH04W74/06H04W72/1268H04W72/12
Inventor S·P·亚伯拉罕H·桑帕斯S·梅林M·M·文廷克
Owner QUALCOMM INC