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Multi-frame transmission method and multi-frame transmission system

A frame transmission and frame exchange technology, applied in electrical components, wireless communication, etc., can solve problems such as affecting the throughput of OBSS stations, reducing transmission opportunities, and long NAV setting time, so as to improve system throughput, ensure efficient performance, reduce The effect of small channel appointment time

Active Publication Date: 2012-07-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the main purpose of the present invention is to provide a multi-frame transmission method and system to solve the problem that the NAV setting time of the observer station is long during the multi-frame transmission process, which reduces the transmission opportunity and affects the throughput of the OBSS station

Method used

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  • Multi-frame transmission method and multi-frame transmission system
  • Multi-frame transmission method and multi-frame transmission system

Examples

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Embodiment 1

[0056] The multi-frame transmission process of this embodiment is as follows Figure 5 As shown, in this embodiment, there are multiple data to be sent in one access queue of the AP, and the receiving addresses are two stations: receiving station 1 (STA_1) and receiving station 2 (STA_2), and the TXOP of the access queue limit is not zero, therefore, the AP can obtain a transmission opportunity for the access queue and perform multi-frame transmission. AP competes for transmission opportunities for the access queue according to the competition principle of obtaining transmission opportunities in EDCA mode, and sends multiple data to be sent in the access queue to STA_1 and STA_2. The specific process is as follows:

[0057] Step A: First, according to the quantity and / or length of the data to be sent to STA_1 in the current AC, the AP determines the time it needs to occupy the channel for frame exchange between itself and STA_1 under the limit of the TXOP limit, and communicat...

Embodiment 2

[0077] The scenario of this embodiment is the same as that of Embodiment 1, but the specific implementation process of multi-frame transmission is different, refer to Figure 6 As shown, the specific process of this embodiment is as follows:

[0078] Step A: It is basically the same as Step A in Embodiment 1, the difference is that after the AP determines the time required to occupy the channel for frame exchange with STA_1, it directly sends a data frame to STA_1, and the transmitted data frame Duration is carried in , after receiving the confirmation frame returned by STA_1, the channel is successfully reserved;

[0079]Specifically, the AP sends a data frame 1 to STA_1, and the data frame 1 carries a Duration. The Duration is specifically the time between the end of the AP sending the data frame 1 to STA_1 and the end of the last confirmation frame sent by STA_1; STA_1 receives After the data frame 1 sent by the AP is successfully decoded, it sends an acknowledgment frame ...

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Abstract

The invention discloses a multi-frame transmission method. The method comprises the following steps that: based on amount and / or length of data to be sent to the current receiving station in the current access queue, a sending station determines the time for occupying a channel to perform frame exchange with the current receiving station; the sending station generates channel reservation time information according to the determined time for occupying the channel to perform frame exchange with the current receiving station; and the sending base station performs frame exchange with the current receiving station according to the generated channel reservation time information. The invention further discloses a multi-frame transmission system. With the method and the system, the channel reservation time of the stations in an OBSS (Object Based Storage System) is reduced, thus, an auditing station can set shorter NAV (Network Allocation Vector) settings, the system throughput of the OBSS is improved, and the high efficiency of each station in the OBSS under the condition of large-bandwidth is ensured.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a multi-frame transmission method and system. Background technique [0002] At present, with the rapid development of wireless local area networks (WLAN, Wireless Local Area Networks), the demand for WLAN coverage is increasing day by day, and the requirement for throughput is also getting higher and higher. In the IEEE802.11 group of the Institute of Electrical and Electronics Engineers industry specification, a series of standards such as 802.11a, 802.11b, 802.11g, etc. have been defined successively. Specifications for technical improvement, for example, the 802.11n task group puts forward the requirement of high throughput (HT, High throughput), supporting data rates up to 600Mbps, and the 802.11ac task group further proposes the concept of very high throughput (VHT, Very High throughput) , by introducing a larger channel bandwidth to increase the data rate to 1...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04W74/08
Inventor 吕开颖孙波李楠
Owner ZTE CORP
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