私のオペレーティングシステムはArchlinuxで、オンボードWi-FiチップMediaTek MT7921はWi-Fi-6チップです。 ~によるとイウィキMT7921は、Linux上で80MHzのホットスポット生成をサポートしています。
nmcli device wifi hotspot ssid TestWifi password TestPassword ifname wlp6s0 band a channel 165ホットスポットを生成するコマンドを使用します。しかし、AndroidでWi-Fiスキャナアプリを使用してスキャンすると、わずか20MHzであり、関係者によると、これは許容できないほど遅いです。この回答。
それでは、NetworkManager設定に40MHz / 80MHzの帯域幅を適用する方法は？構成オプションが見つかりません。公式文書。
しかし、NetworkManagerがこれを行うことができない場合、Linuxで指定された帯域幅でホットスポットを生成するための別の簡単なツールはありますか？
このコマンドはiw phy phy0 infoチップの詳細を表示します。
Wiphy phy0
wiphy index: 0
max # scan SSIDs: 4
max scan IEs length: 482 bytes
max # sched scan SSIDs: 10
max # match sets: 16
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports AP-side u-APSD.
Device supports T-DLS.
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP-128 (00-0f-ac:4)
* CCMP-256 (00-0f-ac:10)
* GCMP-128 (00-0f-ac:8)
* GCMP-256 (00-0f-ac:9)
* CMAC (00-0f-ac:6)
* CMAC-256 (00-0f-ac:13)
* GMAC-128 (00-0f-ac:11)
* GMAC-256 (00-0f-ac:12)
Available Antennas: TX 0x3 RX 0x3
Configured Antennas: TX 0x3 RX 0x3
Supported interface modes:
* managed
* AP
* AP/VLAN
* monitor
* P2P-client
* P2P-GO
Band 1:
Capabilities: 0x9ff
RX LDPC
HT20/HT40
SM Power Save disabled
RX Greenfield
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
HE Iftypes: managed
HE MAC Capabilities (0x08011a000040):
+HTC HE Supported
Trigger Frame MAC Padding Duration: 2
OM Control
Maximum A-MPDU Length Exponent: 3
A-MSDU in A-MPDU
HE PHY Capabilities: (0x2270ce120dc0b306423f00):
HE40/2.4GHz
242 tone RUs/2.4GHz
Device Class: 1
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
SU Beamformee
Beamformee STS <= 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
Triggered CQI Feedback
Partial Bandwidth Extended Range
PPE Threshold Present
Power Boost Factor ar
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
20MHz in 40MHz HE PPDU 2.4GHz
DCM Max BW: 1
Longer Than 16HE SIG-B OFDM Symbols
Non-Triggered CQI Feedback
TX 1024-QAM
RX 1024-QAM
RX Full BW SU Using HE MU PPDU with Compression SIGB
RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: managed
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE Iftypes: AP
HE MAC Capabilities (0x00011a081044):
+HTC HE Supported
BSR
OM Control
Maximum A-MPDU Length Exponent: 3
BQR
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x0220ce120000a000000c00):
HE40/2.4GHz
LDPC Coding in Payload
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
Partial Bandwidth Extended Range
PPE Threshold Present
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: AP
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
Bitrates (non-HT):
* 1.0 Mbps (short preamble supported)
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (20.0 dBm) (no IR)
* 2472 MHz [13] (20.0 dBm) (no IR)
* 2484 MHz [14] (20.0 dBm) (no IR)
Band 2:
Capabilities: 0x9ff
RX LDPC
HT20/HT40
SM Power Save disabled
RX Greenfield
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
VHT Capabilities (0x339071b2):
Max MPDU length: 11454
Supported Channel Width: neither 160 nor 80+80
RX LDPC
short GI (80 MHz)
TX STBC
SU Beamformee
MU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
VHT extended NSS: supported
HE Iftypes: managed
HE MAC Capabilities (0x08011a000040):
+HTC HE Supported
Trigger Frame MAC Padding Duration: 2
OM Control
Maximum A-MPDU Length Exponent: 3
A-MSDU in A-MPDU
HE PHY Capabilities: (0x4470ce120dc0b306423f00):
HE40/HE80/5GHz
242 tone RUs/5GHz
Device Class: 1
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
SU Beamformee
Beamformee STS <= 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
Triggered CQI Feedback
Partial Bandwidth Extended Range
PPE Threshold Present
Power Boost Factor ar
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
20MHz in 40MHz HE PPDU 2.4GHz
DCM Max BW: 1
Longer Than 16HE SIG-B OFDM Symbols
Non-Triggered CQI Feedback
TX 1024-QAM
RX 1024-QAM
RX Full BW SU Using HE MU PPDU with Compression SIGB
RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: managed
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE Iftypes: AP
HE MAC Capabilities (0x00011a081044):
+HTC HE Supported
BSR
OM Control
Maximum A-MPDU Length Exponent: 3
BQR
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x0420ce120000a000000c00):
HE40/HE80/5GHz
LDPC Coding in Payload
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
Partial Bandwidth Extended Range
PPE Threshold Present
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: AP
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
Bitrates (non-HT):
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 5180 MHz [36] (20.0 dBm)
* 5200 MHz [40] (20.0 dBm) (no IR)
* 5220 MHz [44] (20.0 dBm) (no IR)
* 5240 MHz [48] (20.0 dBm) (no IR)
* 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
* 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
* 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
* 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
* 5500 MHz [100] (20.0 dBm) (no IR, radar detection)
* 5520 MHz [104] (20.0 dBm) (no IR, radar detection)
* 5540 MHz [108] (20.0 dBm) (no IR, radar detection)
* 5560 MHz [112] (20.0 dBm) (no IR, radar detection)
* 5580 MHz [116] (20.0 dBm) (no IR, radar detection)
* 5600 MHz [120] (20.0 dBm) (no IR, radar detection)
* 5620 MHz [124] (20.0 dBm) (no IR, radar detection)
* 5640 MHz [128] (20.0 dBm) (no IR, radar detection)
* 5660 MHz [132] (20.0 dBm) (no IR, radar detection)
* 5680 MHz [136] (20.0 dBm) (no IR, radar detection)
* 5700 MHz [140] (20.0 dBm) (no IR, radar detection)
* 5720 MHz [144] (20.0 dBm) (no IR, radar detection)
* 5745 MHz [149] (20.0 dBm) (no IR)
* 5765 MHz [153] (20.0 dBm) (no IR)
* 5785 MHz [157] (20.0 dBm)
* 5805 MHz [161] (20.0 dBm) (no IR)
* 5825 MHz [165] (20.0 dBm)
* 5845 MHz [169] (disabled)
* 5865 MHz [173] (disabled)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* new_mpath
* set_mesh_config
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* remain_on_channel
* set_tx_bitrate_mask
* frame
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* tdls_mgmt
* tdls_oper
* start_sched_scan
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* connect
* disconnect
* channel_switch
* set_qos_map
* set_multicast_to_unicast
* set_sar_specs
WoWLAN support:
* wake up on disconnect
* wake up on magic packet
* wake up on pattern match, up to 1 patterns of 1-128 bytes,
maximum packet offset 0 bytes
* can do GTK rekeying
* wake up on network detection, up to 10 match sets
software interface modes (can always be added):
* AP/VLAN
* monitor
valid interface combinations:
* #{ managed, P2P-client } <= 2, #{ AP, P2P-GO } <= 1,
total <= 2, #channels <= 2
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports scan flush.
Device supports per-vif TX power setting
Driver supports full state transitions for AP/GO clients
Driver supports a userspace MPM
Device supports active monitor (which will ACK incoming frames)
Driver/device bandwidth changes during BSS lifetime (AP/GO mode)
Device supports configuring vdev MAC-addr on create.
Device supports randomizing MAC-addr in scans.
Device supports randomizing MAC-addr in sched scans.
max # scan plans: 1
max scan plan interval: 65535
max scan plan iterations: 0
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xb0 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
Supported extended features:
* [ RRM ]: RRM
* [ SET_SCAN_DWELL ]: scan dwell setting
* [ BEACON_RATE_LEGACY ]: legacy beacon rate setting
* [ BEACON_RATE_HT ]: HT beacon rate setting
* [ BEACON_RATE_VHT ]: VHT beacon rate setting
* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
* [ CAN_REPLACE_PTK0 ]: can safely replace PTK 0 when rekeying
* [ AIRTIME_FAIRNESS ]: airtime fairness scheduling
* [ AQL ]: Airtime Queue Limits (AQL)
* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
* [ BEACON_RATE_HE ]: HE beacon rate support (AP/mesh)
ベストアンサー1
予想通り進んでいるようです。チャネル165は、次のように20MHzチャネルです。 https://en.wikipedia.org/wiki/List_of_WLAN_channels#5_GHz_(802.11a/h/n/ac/ax)。 あなたが探しているチャンネルはWikipediaの40MHzと80MHzの列の下にリストされています。
あなたのヘルプにはiw出力が含まれているので、情報があります。周波数の下でBand2をチェックしてください。 [角括弧内]チャンネルはすべて20MHzチャンネルです。実際、オプションはほとんどありません。 :-(
つまり、ハードウェアは20MHz以上をサポートしません。