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Wireless information channel access method and system

A wireless channel and access method technology, applied in the field of wireless channel access methods and systems, can solve problems such as collision, huge signaling overhead, and increased access delay, so as to reduce system overhead, prolong battery life, and reduce The effect of power consumption

Active Publication Date: 2013-05-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application scenarios of 802.11ah, such as smart meter reading systems, environmental monitoring sites, smart home systems, etc., are characterized by a large number of sites. This method is suitable for 802.11ah systems where the number of sites is dozens of times that of traditional APs. , the signaling overhead will be huge
Moreover, an AP may be associated with more than 6,000 stations at the same time, so many stations accessing the channel at the same time will cause a large number of collisions, resulting in an increase in access delay

Method used

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  • Wireless information channel access method and system
  • Wireless information channel access method and system
  • Wireless information channel access method and system

Examples

Experimental program
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Embodiment 1

[0059] In the first embodiment, the wireless frame sent by the AP is a wireless frame including access parameters of a group of stations.

[0060] Step 11, the AP broadcasts a wireless frame to allocate downlink transmission time and uplink transmission time for a group of stations;

[0061] Wherein, the access parameters carried by the wireless frame include at least one of the following: group identification information and / or station identification information of the station, downlink transmission start time, downlink transmission duration, uplink transmission start time, and uplink transmission duration.

[0062] Specifically, the parameters contained in the above wireless frame can refer to figure 2 , the wireless frame specifically includes: message type identifier, group identifier information, downlink start offset, downlink transmission duration, uplink start offset, and uplink transmission duration. Among them, the function of the message type identification is to ...

Embodiment 2

[0070] In the second embodiment, the wireless frame sent by the AP is a wireless frame including access parameters of a group of stations. The difference between the second embodiment and the first embodiment is that, regarding the parameters of the downlink transmission time, the The radio frame is a radio frame in which respective downlink transmission time is assigned to one or more stations in a group of stations.

[0071] Step 21, the AP broadcasts a wireless frame to allocate downlink transmission time and uplink transmission time for a group of stations;

[0072] Wherein, the downlink transmission time is to allocate respective downlink transmission time for one or more stations in a group of stations. The access parameters carried in the wireless frame include at least one of the following: group identification information and / or station identification information of the station, downlink transmission start time, downlink transmission duration, uplink transmission star...

Embodiment 3

[0081] In the third embodiment, the wireless frame sent by the AP is a wireless frame including access parameters of multiple groups of stations.

[0082] Step 31, the AP broadcasts a wireless frame to allocate downlink transmission time and uplink transmission time for multiple groups of stations;

[0083] Wherein, the parameters carried by the wireless frame include at least one of the following: group identification information and / or station identification information of the station, downlink transmission start time, downlink transmission duration, uplink transmission start time, and uplink transmission duration.

[0084] Specifically, the parameters contained in the above wireless frame can refer to Figure 6 , the wireless frame specifically includes: message type identification, group number, group identification information list, group 1 downlink start offset, group 1 downlink duration...group n downlink start offset, group n downlink duration, group 1 Upstream Start ...

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Abstract

The invention provides a wireless information channel access method and a system. The method includes that an access station sends a radio frame comprising access parameters of at least one group of stations; and a station receives the radio frame, the station is contained in the at least one group of stations, when the stations contain to-be-sent data, and according to the access parameters of the stations of the group, data sending is conducted by utilizing a competitive mode during uplink transmission time of the access parameters. The access station of the method sends the radio frame comprises the access parameters of the at least one group of stations, the stations are accessed into the information channels through a competitive mode during uplink transmission time of scheduling time for the stations, data transmission is conducted, lower energy consumption of the stations can be guaranteed, system overhead of the sending of the uplink transmission time parameters by each station is reduced, and the purposes of electricity saving and battery using time prolonging are achieved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and system for accessing a wireless channel. Background technique [0002] Currently, in the wireless network field, the wireless local area network (WLAN) develops rapidly, and the demand for global WLAN coverage is increasing day by day. The IEEE802.11 working group of the Institute of Electrical and Electronics Engineers defined a series of WLAN technical standards such as 802.11a, 802.11b, and 802.11g, and then other task groups emerged one after another to develop specifications involving the improvement of existing 802.11 technologies. For example, the 802.11ah task group mainly uses the resources of the license-free frequency band below the 1GHz frequency band to support new network applications such as smart grids, sensor networks, and cellular network load sharing. [0003] In 802.11, a station (Station, STA) is divided into an access station (Acce...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W74/08
CPCH04W52/02H04W52/0209Y02B60/50H04W52/0225Y02D30/70H04W74/0816
Inventor 李楠吕开颖姜静田开波孙波
Owner ZTE CORP
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