[ath9k-devel] Is two different AP's RTS/CTS affect each other's sta?

There are two APs: (R1, R2)
And there are four STAs:(S11, S12, S21, S22)
S11 and S12 are in the network of R1,
S21 and S22 are in the network of R2,


i know that if S11 send a RTS packet, then S12 will wait a period.
but will S21 and S22 wait for a period too?
please help me to figure it out, thanks!


------------------ ???? ------------------
???: "???";<[email protected]>;
????: 2016?12?6?(???) ??8:32
???: "ath9k-devel at lists.ath9k.org"<[email protected]>; 

??: [ath9k-devel] some quesitons about ath9k tx rates



I'm a newbies in 802.11n, please excuse me to ask some unprofessional questions:


I found the array ath9k_legacy_rates below in file common-init.c in ath9k driver. what are these rates means?
There are 12 rates in the array, but there are only 4 ath9k_11n_rate_series in ath_tx_info.rates[], why?


static struct ieee80211_rate ath9k_legacy_rates[] = {
	RATE(10, 0x1b, 0),
	RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE),
	RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE),
	RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE),
	RATE(60, 0x0b, (IEEE80211_RATE_SUPPORTS_5MHZ |
			IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(90, 0x0f, (IEEE80211_RATE_SUPPORTS_5MHZ |
			IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(120, 0x0a, (IEEE80211_RATE_SUPPORTS_5MHZ |
			 IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(180, 0x0e, (IEEE80211_RATE_SUPPORTS_5MHZ |
			 IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(240, 0x09, (IEEE80211_RATE_SUPPORTS_5MHZ |
			 IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(360, 0x0d, (IEEE80211_RATE_SUPPORTS_5MHZ |
			 IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(480, 0x08, (IEEE80211_RATE_SUPPORTS_5MHZ |
			 IEEE80211_RATE_SUPPORTS_10MHZ)),
	RATE(540, 0x0c, (IEEE80211_RATE_SUPPORTS_5MHZ |
			 IEEE80211_RATE_SUPPORTS_10MHZ)),
};



struct ath_tx_info {
	u8 qcu;


	bool is_first;
	bool is_last;


	enum aggr_type aggr;
	u8 ndelim;
	u16 aggr_len;


	dma_addr_t link;
	int pkt_len;
	u32 flags;


	dma_addr_t buf_addr[4];
	int buf_len[4];


	struct ath9k_11n_rate_series rates[4];
	u8 rtscts_rate;
	bool dur_update;


	enum ath9k_pkt_type type;
	enum ath9k_key_type keytype;
	u8 keyix;
	u8 txpower[4];
};







------------------ ???? ------------------
???: "Kamran Nishat";<[email protected]>;
????: 2016?12?5?(???) ??1:06
???: "???"<[email protected]>; 

??: Re: [ath9k-devel] Why are there only 4 ieee80211_tx_rate in Mac80211and ath9k



look into Minstrel_ht

On Mon, Dec 5, 2016 at 8:11 AM, ??? <[email protected]> wrote:
Can anyone give me a clue, please?

????iPhone

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