WiFi測試小知識之十二：長GI與短GI有什麽區别和影響

The valid range is between 1 millisecond to 1000 milliseconds. Step 6. Configure the guard interval for the network by entering this command: config 802.11a | ...

IEEE 802.11b-1999, known as 802.11b, allowed for up to 11 Mb/s in ... Includes a guard interval of 400ns. Table 2.9. Parameters Affecting 802.11n Data Rate.

GI的作用Short GI(Guard Interval)是802.11n针对802.11a/g所做的改进。

2021年11月9日 — The 802.11n draft specifies two guard intervals: 400ns (short) and 800ns (long). Support of the 400ns GI is optional for transmit and ...

^ Jump up to: The default guard interval is 0.8 microseconds. However, 802.11ax extended the maximum available guard interval to 3.2 microseconds, in ...

2021年5月25日 — 802.11ac had two Guard Interval (GI) options – long GI (0.8µs) and short GI (0.4µs). 802.11ax has three types of GI – the normal GI (0.8 µs) ...

2015年6月2日 — This program generates OFDM (Orthogonal Frequency Division Multiplexing) signal and its spectrum. Also the guard interval (GI) is inserted. WiFi ...

2021年2月8日 — The guard-interval-mode command configures the guard interval (GI) mode. ... The GI for 802.11a/b/g is fixed at 800 ns. The GI for 802.11n and ...

NOTE: 802.11 a/b/g requires guard interval (GI) to be 800 ns. From 802.11n and the next 802.11ac, short guard interval (400 ns) is introduced while the default value of GI is still set as 800 ns.