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Channel reservation method and system

A channel reservation and channel technology, which is applied in the field of communication, can solve the problems of data transmission interference and channel occupation of the sending site, and achieve the effect of avoiding interference

Inactive Publication Date: 2012-03-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, in the process of using multiple channels for data transmission between the sending station and the receiving station, the channels used by it may be occupied by other sending stations, thereby causing interference to the data transmission of the sending station and the receiving station

Method used

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Examples

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Embodiment 1

[0047] In the preferred embodiment 1, the implementation of wireless channel detection through the channel reservation request message / channel reservation confirmation message mainly includes the following steps.

[0048] The AP and the STA inform each other of their supported channel bandwidth, for example, the AP supports 160 / 80 / 40 / 20MHz, and the STA supports 80 / 40 / 20MHz. Before sending data to the STA, the AP negotiates with the STA that the channel bandwidth used for current transmission is four times the basic channel bandwidth, that is, 80 MHz. The information that the AP needs to notify the STA includes at least one of the following: primary channel identification information, secondary channel identification information, and third and fourth channel identification information of the AP.

[0049] Before sending data, the AP needs to send a channel reservation request message to the STA for channel reservation. The AP detects through channel scanning whether the main ch...

Embodiment 2

[0054] The implementation of wireless channel detection in the second preferred embodiment mainly includes the following steps.

[0055] The AP and the STA inform each other of their supported channel bandwidth, for example, the AP supports 160 / 80 / 40 / 20MHz, and the STA supports 80 / 40 / 20MHz. Before sending data to the STA, the AP negotiates with the STA that the current transmission uses 80MHz. The information that the AP needs to notify the STA includes at least one of the following: primary channel identification information, secondary channel identification information, and third and fourth channel identification information of the AP.

[0056] In this embodiment, the AP uses the same method as that in the preferred embodiment 1 to send a channel reservation request message to make a channel reservation with the STA. The AP detects through channel scanning that the main channel of other BSSs around it occupies its own auxiliary channel, then the AP sends a channel reservati...

Embodiment 3

[0061] The implementation of wireless channel detection in the third preferred embodiment mainly includes the following steps.

[0062] The AP and the STA inform each other of their supported channel bandwidth, for example, the AP supports 160 / 80 / 40 / 20MHz, and the STA supports 80 / 40 / 20MHz. Before sending data to the STA, the AP negotiates with the STA that the current transmission uses 80MHz. The information that the AP needs to notify the STA includes at least one of the following: primary channel identification information, secondary channel identification information, and third and fourth channel identification information of the AP.

[0063] Before sending data, the AP sends a channel reservation request message to the STA for channel reservation. The AP scans the channel to detect whether the main channel of other BSSs around it occupies the channel used by itself for data transmission, and sends a channel reservation on the main channel, the occupied channel, and anothe...

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Abstract

The invention discloses a channel reservation method and system. The method comprises the following steps of: sending channel reservation request information to a receiving station by a sending station on a first number of base channels, wherein the first number is an integer larger than or equal to 1, and the base channels are minimum-bandwidth channels defined in a system in which the sending station and the receiving station are located; sending channel reservation acknowledgement information to the sending station by the receiving station on a second number of base channels, wherein the second number is an integer larger than or equal to 1; and receiving the channel reservation acknowledgement information by the sending station and then completing the channel reservation with the receiving station. According to the method and system, the inference caused by other sending stations is avoided.

Description

technical field [0001] The present invention relates to the communication field, in particular to a channel reservation method and system. Background technique [0002] At present, in the wireless network field, a wireless local area network (Wireless Local Area Network, WLAN for short) develops rapidly, and a demand for WLAN coverage is increasing day by day. The Institute of Electrical and Electronics Engineers industry standard IEEE802.11 group has defined a series of standard WLAN technologies such as IEEE802.11a, IEEE802.11b, and IEEE802.11g, and then other task groups have emerged one after another, dedicated to the development of related The existing IEEE802.11 technology improvement specifications, for example, the IEEE802.11n task group puts forward the requirement of high throughput (High throughput, referred to as HT), which supports a data rate up to 600Mbps, and the IEEE802.11ac task group further proposes the VHT (Very High throughput ) concept, 11ac devices w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/18
CPCH04W74/08H04W28/26H04W74/0816
Inventor 李楠孙波吕开颖李峰姜静
Owner ZTE CORP
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