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kvr漫游

option rrm_neighbor_report 1

  • 含义：开启 RRM（Radio Resource Management）中的邻居报告（Neighbor Report）功能
  • 作用：允许无线终端（STA）通过 AP 获取周边邻居 AP 的信息（如信道、BSSID、信号强度等），便于终端做更智能的漫游决策。此功能符合 802.11k 标准

option rrm_beacon_report 1

  • 含义：开启 RRM 中的信标报告（Beacon Report）功能
  • 作用：开启后，AP 可以请求终端进行信标扫描并上报扫描结果。这样 AP 能更好了解终端视角下的无线环境，辅助漫游优化。这也是 802.11k 的一部分

option bss_transition 1

  • 含义：开启 BSS Transition Management（BSS 漫游引导）功能
  • 作用：允许 AP 主动向终端推荐更优的 AP（通常是同一个 ESS 下的其他 AP），引导终端进行切换与漫游。此功能符合 802.11v 标准

scan规则

option scan_sleep1 '3'  前3次，3秒间隔
option scan_sleep2 '4'  4-6次，4秒间隔
option scan_sleep3 '5'  第7次开始，5秒间隔
option roam_freq '5180,5320,5745' 指定扫描信道

roam规则

option roam_sleep0 '5'  roam之前，5秒间隔
option roam_sleep1 '6'  roam之后，6秒间隔

shortgi规则

shortgi: 0 - GI800, 1 - GI400, 2 - GI1600, 3 - GI3200

debug

  • 0x80-0xc0是 HT rate

  • 0xc0-0xf9是VHT

  • 0x0-0x7f是legacy rate

  • A value of 0x4 indicates VHT SGI mask set for only MCS2

  • A value of 0xFF indicates VHT SGI mask set for MCS0-MCS7

  • A value of 0x3FF indicates VHT SGI mask set for MCS0-MCS9

        option roam_rssi '-55'
        option scan_sleep1 '3'
        option scan_sleep2 '4'
        option scan_sleep3 '5'
        option roam_sleep0 '3'
        option roam_sleep1 '6'
        option scan_rssi_diff '5'
        option set_max_rate 0x0
        option nhxarq '1'
        option r_r '-55'
        option s_s1 '3'
        option s_s2 '4'
        option s_s3 '5'
        option r_s0 '3'
        option r_s1 '6'
        option s_r_d '5'
        option set_max_rate 0x0
        option nhxarq '1'

多信道扫描

wpa_cli -p /var/run/wpa_supplicant-ath3 scan freq=5180 5320 5745

单信道扫描

wpa_cli -p /var/run/wpa_supplicant-ath3 scan freq=5180

停止漫游

/etc/init.d/nhxstai stop

增强roam_rssi

自动计算scan阀值：采集数据10次，去掉最低10个值，去掉最高10个值，计算平均值

Software Retry (SWR)

cfg80211tool athX ampdu <0-255>         // 0表示禁用AMPDU；1-255表示AMPDU子帧限制
cfg80211tool athX amsdu <0-7>


cfg80211tool wifi0 dyntxchain 1
cfg80211tool wifi0 get_dyntxchain

无线速率配置表

static const MCS_RATE_TABLE wlanRateTable[] =
{
    {"Not use this item",       0x00000000, 0x00000000},
    {"Best (Automatic)",        0x00000000, 0x00000000},
    {"MCS 15 - 130M [270M]",    0x8F8F8F8F, 0x04040404},
    {"MCS 14 - 117M [243M]",    0x8E8E8E8E, 0x04040404},
    {"MCS 13 - 104M [216M]",    0x8D8D8D8D, 0x04040404},
    {"MCS 12 -  78M [162M]",    0x8C8C8C8C, 0x04040404},
    {"MCS 11 -  52M [108M]",    0x8B8B8B8B, 0x04040404},
    {"MCS 10 -  39M [ 81M]",    0x8A8A8A8A, 0x04040404},
    {"MCS  9 -  26M [ 54M]",    0x89898989, 0x04040404},
    {"MCS  8 -  13M [ 29M]",    0x88888888, 0x04040404},
    {"MCS  7 -  65M [135M]",    0x87878787, 0x04040404},
    {"MCS  6 - 58.5M [121.5M]", 0x86868686, 0x04040404},
    {"MCS  5 -  52M [108M]",    0x85858585, 0x04040404},
    {"MCS  4 -  39M [ 81M]",    0x84848484, 0x04040404},
    {"MCS  3 -  26M [ 54M]",    0x83838383, 0x04040404},
    {"MCS  2 - 19.5M [40.5M]",  0x82828282, 0x04040404},
    {"MCS  1 -  13M [ 27M]",    0x81818181, 0x04040404},
    {"MCS  0 - 6.5M [13.5M]",   0x80808080, 0x04040404},
    {"54M",     0x0C0C0C0C, 0x04040404},
    {"48M",     0x08080808, 0x04040404},
    {"36M",     0x0D0D0D0D, 0x04040404},
    {"24M",     0x09090909, 0x04040404},
    {"18M",     0x0E0E0E0E, 0x04040404},
    {"12M",     0x0A0A0A0A, 0x04040404},
    {"9M",      0x0F0F0F0F, 0x04040404},
    {"6M",      0x0B0B0B0B, 0x04040404},
    {"11M",     0x18181818, 0x04040404},
    {"5.5M",    0x19191919, 0x04040404},
    {"2M",      0x1A1A1A1A, 0x04040404},
    {"1M",      0x1B1B1B1B, 0x04040404}
};

maxscantime