Wireless Configuration¶

RansNet SD-WAN branch routers (UA, HSA, and XE series) include built-in dual-band Wi-Fi 6 (802.11ax) capability, supporting both 2.4 GHz and 5 GHz radios simultaneously. Refer to the Product Overview for hardware specifications by model.

Each router can operate in one of three wireless modes:

Mode	Description
AP Mode	Router serves as a wireless access point for client devices. SSIDs are configured directly on the device or pushed via a template. Includes adaptive radio optimization (power, channel, bandwidth management) and comprehensive enterprise roaming features (802.11k neighbor reports, optional 802.11r fast roaming) for dense deployments.
STA (Station) Mode	Router connects as a wireless client to an upstream AP, using the Wi-Fi link as a WAN backhaul. See Wi-Fi as WAN.
EzMesh (Multi-AP)	One router acts as an EzMesh controller and propagates SSID configuration to agent routers automatically over a mesh backhaul.

Standalone AP¶

In standalone AP mode, each router manages its own SSID configuration independently. This is suitable for single-site deployments or when per-device customization is required.

GUI Configuration¶

Navigate to Device Settings → Network → Wi-Fi.

The page is divided into two sections: Radio Settings and SSID Settings.

Radio Settings¶

Each router has two radios. Configure the operating parameters for each:

Field	Description
Radio	Radio identifier — `Radio0` operates at 2.4 GHz, `Radio1` at 5 GHz
Country	Regulatory domain — determines permitted channels and maximum transmit power for the deployment region
Channel	Operating channel. Select a specific channel or leave on Auto to let the radio choose the least congested channel at startup
Width	Channel bandwidth. 2.4 GHz supports 20/40 MHz; 5 GHz supports 20/40/80/160 MHz. Wider channels increase throughput but are more susceptible to interference
Power	Transmit power level. Reduce this in dense deployments to limit co-channel interference between adjacent APs
Enable	Enables or disables the radio entirely

SSID Settings¶

Multiple SSIDs can be configured on a single device. Each SSID can be assigned to one or both radios, with independent security and network segmentation settings:

Field	Description
SSID Name	The wireless network name broadcast to client devices
Operating Mode	AP Mode — serves wireless clients; STA Mode — connects as a client to an upstream AP (Wi-Fi as WAN)
Security	Encryption method: Open, WPA2-PSK, WPA/WPA2-PSK (mixed-mode for legacy client compatibility), WPA2 Enterprise (802.1X RADIUS), WPA3 SAE, WPA3 Enterprise
Radio 2.4 GHz	Broadcast this SSID on the 2.4 GHz radio
Radio 5 GHz	Broadcast this SSID on the 5 GHz radio
Broadcast	Controls whether the SSID is visible in wireless scans. Disable for hidden networks
VLAN	Tags client traffic with a VLAN ID for network segmentation — e.g. separate guest traffic from corporate traffic
Bridge	Bridge group to attach this SSID to — determines which LAN segment client traffic enters
Client Isolation	Prevents wireless clients on the same SSID from communicating directly with each other. Recommended for guest networks
Fast Roaming	Enables 802.11r Fast BSS Transition — reduces handoff latency when clients roam between APs on the same ESS
Enable	Enables or disables this SSID

Tip

Ensure the VLAN interfaces and bridge groups referenced by each SSID are already configured under Interfaces before saving. A misconfigured bridge or VLAN reference will prevent the SSID from passing traffic.

CLI Configuration¶

interface wifi 0
 ssid corpnet
  encryption WPA2-PSK key pskpassword
  vlan access 10
  enable

interface wifi 1
 ssid corpnet
  encryption WPA2-PSK key pskpassword
  vlan access 10
  enable

In this example, wifi 0 (2.4 GHz) and wifi 1 (5 GHz) both broadcast the same SSID. Clients connect to whichever band their device supports and prefers.

Verification¶

Verify the SSID is broadcasting and clients can connect:

show interface wifi

This displays active SSIDs, operating channels, transmit power, and current client count. Verify: - SSID name matches configuration - Both 2.4 GHz and 5 GHz radios are enabled (if configured on both bands) - Channel and width are as expected - Client count shows connected devices

View connected clients and their signal quality:

show interface wifi clients

Each client entry shows IP address, connection band, signal strength (RSSI), and data rates. Verify clients are connected to the correct VLAN and SSID.

Comprehensive Enterprise Wireless Features¶

For large-scale wireless deployments in dense RF environments (malls, office complexes, stadiums, conference centers), RansNet provides three complementary features that work together to ensure optimal client experience, minimal interference, and seamless roaming:

Adaptive Radio Optimization + 802.11k + 802.11r = Enterprise-Grade Wireless

Overview: How the Three Components Work Together¶

Feature	What It Does	Benefit
Adaptive Radio Optimization	Minimizes co-channel interference, adjusts power, reduces bandwidth in congestion	Improves RF quality on each AP, reduces frame retransmissions, extends coverage
802.11k (Neighbor Reports)	Enabled by default — Provides APs a list of nearby APs so clients can make informed roaming decisions	Clients discover better APs before signal degrades, reduces unnecessary roaming attempts, faster AP discovery
802.11r (Fast Roaming)	Enables fast BSS transition (FT) — clients can roam between APs with minimal latency	Seamless handoff for voice/video calls, no dropped packets during movement

How They Work Together:

802.11k (enabled by default) — When a client's signal weakens on AP-A, the AP provides a list of nearby stronger APs (AP-B, AP-C) via neighbor reports. The client can pre-authenticate with these APs without breaking its current connection.
Adaptive Optimization — Meanwhile, the APs are independently optimizing their RF environment (reducing interference, adjusting power) to provide the best coverage and handoff candidates.
802.11r (optional, recommended) — When the client decides to roam to AP-B, 802.11r enables a fast transition (typically <50 ms) so voice/video calls remain uninterrupted.

Combined Effect: A client moving through a dense office or mall experiences:

Better RF at each AP — Adaptive optimization ensures optimal RSSI and minimal interference at every location
Smart roaming decisions — 802.11k helps the client find the best next AP before current signal degrades
Fast handoff between APs — 802.11r enables seamless transition (<50 ms vs. 200+ ms without FT)
No dropped calls — Voice and video applications remain uninterrupted during movement

IEEE 802.11k Details (Enabled by Default)¶

802.11k (Neighbor Reports / RRM) is automatically enabled on all APs to provide roaming assistance. It allows:

APs to advertise themselves to clients in range
Clients to request a list of nearby APs sorted by signal strength
Clients to pre-authenticate with candidate APs before roaming
Better roaming decisions based on actual neighbor data, not just signal strength

No additional configuration is required — 802.11k is active by default and works transparently.

Enabling Fast Roaming (802.11r)¶

To enable Fast Roaming (802.11r, optional but recommended for enterprise), configure it on all SSIDs:

interface wifi 0
 power adaptive
 channel adaptive
 bandwidth adaptive
 ssid corpnet
  encryption WPA2-PSK key pskpassword
  fast-roaming enable        # Enable 802.11r Fast BSS Transition
  enable

interface wifi 1
 power adaptive
 channel adaptive
 bandwidth adaptive
 ssid corpnet
  encryption WPA2-PSK key pskpassword
  fast-roaming enable        # Enable on 5 GHz as well
  enable

For deployments with 10+ APs in close proximity, this combination is essential for professional-grade wireless.

Enterprise Use Cases¶

Large Office Complexes

Multiple APs deployed across multiple floors in close proximity
Co-channel interference causes poor handoff performance and client frustration
Manual channel planning requires frequent adjustments as tenants change
Solution: Adaptive optimization continuously monitors neighbor density and adjusts channels, ensuring optimal client experience as RF conditions change

Shopping Malls & Retail

High client density with multiple guest Wi-Fi networks
Channel congestion varies by time of day (peak hours vs. off-hours)
Adjacent retailers may deploy uncoordinated Wi-Fi with overlapping channels
Solution: Each AP autonomously optimizes its RF footprint, reducing interference from neighbors while maintaining coverage for legitimate clients

Conference Centers & Stadiums

Large crowds with thousands of clients per event
Temporary events create RF congestion not present during normal operation
No time for manual reconfiguration between events
Solution: Optimization runs nightly and on-demand, adapting to changing client density and neighbor presence

Multi-Tenant Environments

Independent tenants manage their own Wi-Fi networks
No central coordination between neighboring APs
Co-channel interference inevitable without per-AP optimization
Solution: Each tenant's AP optimizes independently; passive neighbor detection avoids coordination overhead

Adaptive Radio Optimization¶

Adaptive Radio Optimization is the intelligent RF engine that continuously optimizes transmit power, channel selection, and channel bandwidth on each AP. Combined with 802.11k neighbor awareness and 802.11r fast roaming (covered in Comprehensive Enterprise Wireless Features above), it provides a complete enterprise wireless solution for dense deployments.

Prerequisites¶

To use Adaptive Radio Optimization, your deployment must meet the following requirements:

Requirement	Details
Firmware Version	Branch series routers running firmware 20260724-2100 or later
Template	Routers must be provisioned with or updated to Template_Branch
Configuration	At least one radio must have adaptive optimization enabled (`power adaptive`, `channel adaptive`, or `bandwidth adaptive`)
Management	Access to device CLI or mfusion orchestrator for configuration and on-demand optimization

Note

If your router is running an older firmware version, upgrade via Device Settings → System → Firmware. Edit host provisioning to use Template_Branch.

Warning

Impact on Connected Devices: Optimization causes WiFi to restart after changes are applied. Connected clients will briefly disconnect (typically 5-10 seconds) and reconnect. This is normal behavior.

Recommendation: Schedule on-demand optimization (test wifi) during maintenance windows when client impact is minimal. The automatic nightly optimization (3 AM by default) is designed to run during off-hours to minimize disruption.

Benefits¶

Benefit	Details
Reduced Co-Channel Interference	Automatically detects neighboring APs on the current channel and switches to less congested alternatives, improving RSSI and reducing frame retransmissions
Optimal Transmit Power	Adjusts power based on worst-case client signal strength — reduces power when coverage is good (energy efficient) and increases when clients are distant (extends range)
Adaptive Channel Width	Narrows channel bandwidth in congested environments (HT80 → HT40 → HT20) to improve link reliability and reduce vulnerability to interference
Zero Central Coordination	Each AP optimizes independently using passive RF scanning — no controller required, no mesh signaling overhead, works with standalone and distributed deployments
Minimal Operational Overhead	Runs automatically at 3 AM or on-demand — no manual per-AP tuning required

How It Works¶

Measurement and Decision:

Each AP passively scans the RF environment to detect neighboring APs and their signal strength
Client RSSI is extracted from monitoring reports to assess coverage quality
Decisions are made locally based on three criteria:

Optimization	Trigger	Action
Power	Client RSSI < -75 dBm	Increase to 23 dBm (extend range)
Power	Client RSSI > -65 dBm	Reduce to 17 dBm (energy efficient)
Channel	≥3 neighbors on current channel	Switch to channel with fewer neighbors (if improvement ≥1 neighbor)
Bandwidth	≥5 neighbors on current channel (5G)	Reduce to HT20 (improved reliability)
Bandwidth	≥3 neighbors on current channel (5G)	Reduce to HT40 (medium congestion)
Bandwidth	<2 neighbors on current channel (5G)	Use HT80 (maximum throughput)

All three optimizations run sequentially in a single pass, with WiFi restarting only once at the end to maintain RF stability.

Execution Methods:

Method	Frequency	Use Case
Automatic (Nightly)	3 AM daily	Default behavior; runs during off-hours to avoid client disruption
On-Demand (CLI or mfusion)	Manual execution	Individual AP troubleshooting; verify optimization before/after
mfusion Mass Update	Staggered (2 min between APs)	Push optimization across all APs without RF scanning collision

GUI Configuration¶

Adaptive optimization is enabled per radio, from either of two places depending on your deployment setup:

Wireless template (fleet-wide) — navigate to ORCHESTRATOR → Configuration → Templates → Wireless tab and edit the template's Global Wireless settings; the configuration applies to all hosts linked to the template.
Individual host — navigate to Device Settings → Network → Wi-Fi on the device to configure a single AP.

In the Wi-Fi Radio Settings table, select Adaptive from the dropdown for each option you want the AP to manage automatically:

Field	Example Value	Description
Radio	`Radio0 2.4Ghz`, `Radio1 5Ghz`	Each physical radio is configured independently
Country	`Singapore`	Regulatory domain — determines the permitted channels and power limits
Channel	`Adaptive`	Select Adaptive for automatic channel selection, or a fixed channel number
Bandwidth	`Adaptive`	Select Adaptive for automatic channel-width adjustment, or a fixed width (e.g., HT40)
Power	`Adaptive`	Select Adaptive for automatic transmit-power tuning, or a fixed dBm value
Enable	✓	Enable or disable the radio

Note

The three options are independent — you can mix adaptive and fixed values (e.g., Adaptive channel with fixed power). Setting all three to Adaptive enables the full optimization described above.

CLI Configuration¶

Enable adaptive optimization for individual radios:

interface wifi 0
 power adaptive
 channel adaptive
 bandwidth adaptive
 ssid testwifi
  enable

interface wifi 1
 power adaptive
 channel adaptive
 bandwidth adaptive
 ssid testwifi
  enable

Parameter Descriptions:

Parameter	Description
`power adaptive`	Automatically adjust transmit power based on worst-case client RSSI: 17 dBm (good coverage) to 23 dBm (extend range)
`channel adaptive`	Monitor neighboring APs on current channel; switch if ≥3 neighbors detected and alternative channel has ≥1 fewer neighbor
`bandwidth adaptive`	Reduce channel width in congested RF (5G: HT80 → HT40 → HT20; 2.4G: HT40 fixed) based on neighbor density

To disable adaptive optimization and return to static configuration:

interface wifi 0
 power 20
 channel 6
 bandwidth HT40

On-Demand Optimization¶

Run optimization immediately from the CLI during a maintenance window when client impact is acceptable:

test wifi

Or execute from mfusion device control panel.

Tip

Schedule during maintenance windows — Connected clients will briefly disconnect (5-10 seconds) while WiFi restarts with optimized settings. Avoid running on-demand optimization during peak business hours.

This executes power, channel, and bandwidth optimization on all configured radios and displays a summary of changes:

[info] running adaptive radio optimization for wifi0...
[info] executing sequential optimization (power → channel → bandwidth)...
[info] adaptive radio optimization completed
[info] 2026-01-15 03:30:45 UTC: ath0 - optimization applied, restarting wifi

mfusion Mass WiFi Optimization¶

To optimize multiple APs across a deployment:

In the mfusion orchestrator, navigate to Configuration → Branch Devices
Select multiple APs using checkboxes
Click Mass Update and select WiFi Optimization
The orchestrator will push the optimization to each AP sequentially (2 minutes apart) to prevent simultaneous RF scanning

Verification¶

Verify radio settings:

show interface wifi

Verify:

Power level is appropriate (17, 20, or 23 dBm)
Channel reflects optimization (may differ from original config if adaptive enabled)
Bandwidth adjusted based on congestion (2.4G stays HT40; 5G may be HT20/40/80 based on neighbors)
Both 2.4 GHz and 5 GHz radios enabled

Check syslog for optimization details:

show logging system filter wifi_adaptive

This shows detailed logs of each optimization decision, neighbor counts, and state changes.

After running on-demand optimization, you can check the optimization result from mfusion push log (operation log)

Best Practices¶

Deployment Configuration:

Enable all three optimizations (power, channel, bandwidth) for maximum benefit in dense RF environments
Verify 802.11k (Neighbor Reports) is enabled — this is the default and requires no configuration
Enable Fast Roaming (802.11r) on all APs to complement adaptive optimization — provides seamless handoff during roaming
Leave nightly optimization enabled (3 AM default) for continuous RF adaptation during off-hours with minimal client impact
Schedule on-demand test wifi during maintenance windows — not during peak business hours (clients will briefly disconnect)
For mass deployments, use orchestrator mass update to ensure staggered, non-overlapping optimization runs (built-in 2 min spacing between APs)

Enterprise Wireless Checklist (for optimal client experience):

✅ Adaptive Radio Optimization — Reduces interference and optimizes power/bandwidth
✅ 802.11k (Neighbor Reports) — Enabled by default; helps clients discover better APs
✅ 802.11r (Fast Roaming) — Enable on all SSIDs for fast handoff (<50 ms)

With all three features enabled, clients experience seamless roaming with zero dropped calls in dense deployments.

Tuning & Troubleshooting:

If clients still experience poor roaming, verify: (1) adaptive optimization enabled, (2) 802.11k enabled (default), (3) fast roaming (802.11r) enabled
If channel keeps switching, verify neighbor AP SSIDs are broadcasting (not hidden); passive scanning detects only active beacons; 802.11k helps with neighbor discovery
Check client RSSI on monitoring reports — if worst-case RSSI is poor, power adjustment may not be sufficient (consider AP placement)
Use test wifi to run optimization on-demand and verify it completes without errors

Limitations & Considerations¶

2.4 GHz bandwidth stays at HT40 — 802.11n standard does not support HT80 on 2.4 GHz; HT40 is maximum effective bandwidth
Passive neighbor detection — Optimization detects only neighboring APs that actively broadcast their SSIDs; hidden SSIDs are not detected
No central coordination — Each AP optimizes independently; no mesh signaling or controller communication; suitable for standalone and distributed deployments only

Wireless Templates¶

For multi-site and multi-AP deployments, wireless templates allow a single SSID configuration to be defined once and pushed to a group of devices — eliminating repetitive per-device configuration. Templates are essential for enterprise deployments, especially when combined with Comprehensive Enterprise Wireless Features (adaptive optimization, 802.11k, and 802.11r).

Use Cases¶

Single-Site, Multi-AP Deployments - 10+ APs in a single office building or campus - All APs should broadcast identical SSIDs with the same security and roaming settings - Templates ensure consistency: define once, apply to all APs simultaneously

Multi-Site Deployments - Multiple locations (branches, stores, offices) with similar wireless requirements - Different sites may need different templates (e.g., retail vs. corporate) - Templates reduce configuration time and minimize human error

Enterprise Wireless with Adaptive Optimization - Deploying Comprehensive Enterprise Wireless Features across many APs - Templates configure adaptive optimization settings (power adaptive, channel adaptive, bandwidth adaptive) and fast roaming (802.11r) uniformly across all linked APs - See Deploying Enterprise Wireless Across Multiple APs below for guidance

GUI Configuration¶

Navigate to ORCHESTRATOR → Configuration → Templates, then select the Wireless tab. Click New WiFi and enter a template name.

The SSID settings within a template are identical to the per-device options described in Standalone AP.

Tip

Define multiple templates to serve different groups of devices — for example, a retail template with a guest SSID and fast roaming enabled, or a corporate template with 802.1X authentication and adaptive optimization.

Once the template is saved, open it and go to the Linked Hosts tab. Click Add Linked Host to select the target devices.

Select the devices to apply the template to, then click Select and save. The orchestrator will push the wireless configuration to all linked devices on the next sync.

Deploying Enterprise Wireless Across Multiple APs¶

For large deployments (10+ APs) in dense RF environments, use templates to deploy Comprehensive Enterprise Wireless Features uniformly:

Template Configuration Example:

Create a template with all three enterprise wireless features enabled:

interface wifi 0
 power adaptive
 channel adaptive
 bandwidth adaptive
 ssid corpnet
  encryption WPA2-PSK key pskpassword
  fast-roaming enable
  enable

interface wifi 1
 power adaptive
 channel adaptive
 bandwidth adaptive
 ssid corpnet
  encryption WPA2-PSK key pskpassword
  fast-roaming enable
  enable

Deployment Workflow:

Create template with adaptive optimization and fast roaming enabled (as shown above)
Link template to all APs in the deployment (via Linked Hosts tab)
Verify deployment — After sync, all APs will have:
Adaptive power, channel, and bandwidth optimization enabled
802.11k enabled (default, automatic)
802.11r fast roaming enabled
Nightly optimization scheduled at 3 AM
Monitor results — Track optimization across all APs:
Use mfusion Mass Update to run on-demand optimization across APs (staggered 2 minutes apart)
Check operation log on each AP to verify optimization is running

Verification¶

Once the template is linked and devices sync with the orchestrator, verify the wireless configuration was applied:

Navigate to Device Settings → Network → Wi-Fi on a linked device
Confirm the SSID configuration matches the template (SSID name, security settings, VLAN assignment, adaptive settings, fast roaming enabled)
Use the CLI to verify:

show interface wifi

EzMesh (Wi-Fi Multi-AP)¶

Overview¶

RansNet EzMesh implements the Wi-Fi Alliance Multi-AP (MAP) specification, built on top of the IEEE 1905.1 abstraction layer. This is the same standard behind Wi-Fi EasyMesh — a vendor-interoperable protocol for coordinated multi-AP wireless networks.

In an EzMesh deployment:

Controller — one router manages the entire mesh network. It holds the SSID configuration (fronthaul and backhaul) and distributes it automatically to all agents using the MAP M1/M2 credential exchange (WPS-based provisioning).
Agent — each additional router connects to the controller over a backhaul link (wireless or wired) and serves client devices over fronthaul SSIDs received from the controller.
Backhaul — the inter-AP wireless link used for mesh communication and configuration exchange. Not visible to end users.
Fronthaul — the SSIDs broadcast to end-user client devices. Agents inherit these from the controller automatically — no manual per-agent SSID configuration is needed.

This architecture supports multiple fronthaul SSIDs, each mapped to a different VLAN, enabling traffic segmentation across the mesh (e.g. corporate, guest, IoT on separate networks).

GUI Configuration¶

Navigate to Device Settings → Network → Wi-Fi, then scroll to the Wi-Fi EzMesh Settings section.

Configure the backhaul and fronthaul SSIDs on the controller device:

Field	Description
SSID Name	Wireless network name — one backhaul SSID and one or more fronthaul SSIDs
Pre-shared Key	WPA2-PSK passphrase for the SSID
Network	VLAN interface this SSID bridges into (e.g. `vlan1` for backhaul, `vlan11`/`vlan12` for fronthaul segments)
Remark	Role label — Backhaul for the inter-AP link, Fronthaul for client-facing SSIDs

Click + Add Fronthaul SSID to add additional client-facing networks. Each fronthaul SSID can be mapped to a different VLAN for traffic isolation.

Agent Provisioning¶

Configuration only needs to be applied on the controller. Agents pull their entire SSID configuration from the controller automatically during the onboarding process:

Apply and save the EzMesh configuration on the controller router.
On the agent router, navigate to Device Settings and click EzMesh Agent to put it into agent mode.
Within 2 minutes, on the controller router, click EzMesh Controller to trigger the WPS push-button exchange. The controller and agent must be within 10 metres of each other during this step to ensure a reliable wireless handshake.
The agent will automatically discover the controller, complete the MAP M1/M2 credential exchange, and apply the fronthaul SSID configuration. This process typically completes within 2 minutes.

Note

The 10-metre proximity requirement and 2-minute window apply to the initial WPS-based onboarding only. Once an agent is provisioned, it can operate at normal deployment distances over the mesh backhaul.

CLI Configuration¶

interface wifi mesh
 backhaul backhaulssid key pskpassword net vlan1
 ssid mbox-1
  vlan access 11
  encryption WPA2-PSK key pskpassword
 ssid mbox-2
  vlan access 12
  encryption WPA2-PSK key pskpassword
 enable

Key points:

backhaul — defines the inter-AP backhaul SSID and maps it to a network interface (vlan1). This link is used for both mesh traffic and controller-to-agent configuration distribution.
ssid entries under interface wifi mesh are fronthaul SSIDs pushed to agents automatically. Each can be mapped to a different VLAN for traffic separation.
wifi 0 and wifi 1 (the individual 2.4/5 GHz radios) are managed by the mesh engine in controller mode and do not require separate SSID configuration.

Verification¶

Verify the mesh topology and confirm agents are connected to the controller:

show interface wifi mesh

This displays the backhaul status, controller/agent role, and agent discovery state. Verify agents have completed provisioning and are connected to the controller.

Verify backhaul and fronthaul SSIDs are broadcasting on both radios:

show interface wifi

The output shows all active SSIDs (backhaul and fronthaul) on both 2.4 GHz and 5 GHz radios. Verify: - Backhaul SSID is operational (typically on a dedicated VLAN like vlan1) - All fronthaul SSIDs are broadcasting (one per VLAN for traffic segmentation) - Both radios are enabled with the correct channels and bandwidth - Transmit power is appropriate for your deployment

View connected clients across all fronthaul SSIDs:

show interface wifi clients

This lists all connected wireless clients showing their IP address, VLAN, SSID, band, signal strength (RSSI/SNR), data rates, and connection duration. Verify: - Clients are distributed across both 2.4 GHz and 5 GHz bands - Clients on guest networks are tagged with the correct guest VLAN - Signal strength (RSSI) is acceptable (typically -30 to -80 dBm for good coverage) - Data rates reflect the expected standard (11NG for 2.4G, 11AC/11AXA for 5G)