Method and system for determining presence of broadcast/multicast cache frame at access point

An access point and multicast frame technology, applied in the field of communication, to achieve the effect of avoiding wake-up

Active Publication Date: 2011-10-05
HUAWEI TECH CO LTD
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the AP is required to be able to configure multiple SSIDs. Different SSIDs correspond to different user groups or services. Although the AP can distinguish user groups or services based on the SSID, it cannot make the STA associated with the SSID determine which STAs are on the AP. Whether there are own broadcast / multicast frames cached in

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for determining presence of broadcast/multicast cache frame at access point
  • Method and system for determining presence of broadcast/multicast cache frame at access point
  • Method and system for determining presence of broadcast/multicast cache frame at access point

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

[0042] The embodiment of the invention discloses a method for determining that there is a broadcast / multicast buffer frame in an access point. According to an embodiment of the present invention, the AP assigns an index value to each SSID and multicast group respectively, and the index value corresponds to the broadcast / multicast indicator bit of the Partial Virtual Bitmap of the beacon frame one by one (the index value is the broadcast / multicast indicator bit). The position information of the multicast indicator bit), and notify the index value to the STA, and the STA can query the corresponding broadcast / multicast indicator bit in the beacon frame according to the index value to know whether there is a broadcast / multicast buffer on the AP. frame. In order to det...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The embodiment of the invention discloses a method and system for determining the presence of a broadcast/multicast cache frame at an access point, which are used for solving the problem of unnecessary wakeup of terminal equipment. The method comprises the following steps of: when the access point receives a broadcast/multicast frame transmitted by a service network and/or multicast group, setting a broadcast/multicast indicating bit corresponding to the service network and/or multicast group in an effective state and transmitting a frame with the broadcast/multicast indicating bit to the terminal equipment; and determining the presence of a broadcast/multicast cache frame belonging to the terminal equipment at the access point according to the service network and/or multicast group related to the terminal equipment and the received broadcast/multicast indicating bit. The embodiment of the invention further discloses an access point and terminal equipment. According to the embodiment of the invention, the presence of the broadcast/multicast cache frame belonging to the terminal equipment at the access point can be recognized by the terminal equipment.

Description

technical field [0001] The present invention relates to a communication technology, in particular to a method and a system for determining that an access point has a broadcast / multicast buffer frame. Background technique [0002] A wireless local area network (wireless LAN, WLAN) technology is popular in the market because of its advantages in wireless, high-speed access comparable to wired connections, and low price. At present, it has begun to replace wired and widely used in homes, campuses, hotels, corporate offices, etc., and has begun to be widely deployed in public hotspots as a wireless broadband access technology to provide public wireless broadband data access services. The following uses the WLAN system defined by IEEE 802.11 as an example to illustrate the WLAN system. [0003] The basic structure of WLAN system is as follows: figure 1 As shown, the system includes: a terminal device (Station, STA), which includes a wireless local area network interface; an acc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W28/14H04W84/12
Inventor 张慧敏莫良耀
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap