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Overview

The RivieraWaves Wi-Fi IP family offers a comprehensive suite of IPs and platforms for embedding Wi-Fi connectivity into SoCs/ASSPs addressing a broad range of applications.

This RW-AX 802.11ax (Wi-Fi 6) IP is part of the RivieraWaves Wi-Fi Low Power category, targeted at IoT peripherals, including wearables, medical devices, wireless audio and other use cases where power and cost are critical factors. This is the industry s smallest footprint and lowest power Wi-Fi IP compliant with 802.11ax (Wi-Fi 6) 1x1 20MHz STA.

The CEVA RW-AX Low Power IP consists of 802.11ax (Wi-Fi 6) MAC and modem cores, restricted to 1x1 SISO with 20MHz bandwidth configuration, supporting STA and Soft AP modes. The MAC is controlled by a LMAC+UMAC (aka FullMAC) software protocol stack. The IP is provided with an integration-ready processor and operating-system- agnostic platform, simplifying deployment in SoC/ASSP designs. The Wi-Fi software protocol stack can be executed on any processor such as ARM, ARC, Andes, Cortus, RISC-V and others.

The RW-AX platform can be used in a standalone single processor chip or integrated into a bigger microcontroller with an application processor.

For more comprehensive solution, the RW-AX IP is well complemented with CEVA-DSP such as the CEVA TeakLite 4 or CEVA-X2, to execute audio processing or other always on sensor hub.

Silicon independent, the RW-AX Low Power IP supports several radio IPs from various partners such as Catena. Other RF can be easily supported on customer demand.

Benefits

  • low MIPS requirement
  • high performance
  • scalable

Applications

  • Power sensitive IoT applications such as wearable, smartwatch, digital camera, smart home & industrial wireless sensors, entry market smart phones and tablets.

Tech Specs

Maturity In Production

Features

  • 802.11ax (Wi-Fi 6) MAC:
    • The RW-AX Low Power MAC core implements the Wi-Fi 6 (802.11a/b/g/n/ax) standard supporting data rates of up to 114Mbps. It also supports the 802.11e standard (QoS) and the 802.11i standard (Security) extensions.
    • RivieraWaves profound expertise in wireless communications resulted in the highly optimized MAC core with special focus on low memory and MIPS requirements while maintaining a small gate count. The MAC core interfaces to the ARM standard AMBA bus.
  • 802.11ax (Wi-Fi 6) Modem:
  • The RW-AX Low Power hardwired modem core is optimized for use with the RW-AX MAC IP to form a low power and cost effective 802.11ax (Wi-Fi 6) 20MHz STA solution. The supported features are:
    • Modulation Coding Schemes (MCS) from 0 to 9
    • 20MHz bandwidth
  • Full implementation of OFDM & OFDMA processing up to the radio interface:
    • Scrambling
    • FEC coding, Viterbi & LDPC encoding/decoding
    • Interleaving
    • FFT
    • Timing, phase and frequency synchronization
    • Channel estimation & compensation
    • Reference digital front end with filtering, radio controller and software defined AGC/CCA state machine for highest flexibility

Deliverables

  • hardware: verilog RTL, testbench, compilation, simulation and synthesis scripts
  • software: C
  • documents
  • test tool running on Windows

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