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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.

The RW-AX IPs are part of the RivieraWaves Wi-Fi High Performance category, aimed at the vast array of media-sharing consumer devices including smartphones, tablets, cameras and smart home products. These are the industry s smallest footprint and lowest power but high performance Wi-Fi IPs compliant with 802.11ax (Wi-Fi 6) 1x1 & 2x2.

The CEVA RW-AX IPs consist of 802.11ax (Wi-Fi 6) MAC and modem, available in both 1x1 SISO and 2x2 MIMO configurations. They are provided with LMAC (aka thinMAC) for use with linux/Android mac80211 UMAC, and LMAC+UMAC (aka FullMAC) software protocol stacks. They are provided with an integration-ready processor and operating-system- agnostic platform, simplifying deployment in SoC/ASSP designs. The Wi-Fi software protocol stacks can be executed on any processor such as ARM, ARC, Andes, Cortus, RISC-V and others.

The RW-AX platforms can be used in a standalone single chip or integrated into a bigger System on Chip (SoC) such as application processor, baseband processor, or multistandard wireless combos.

For more comprehensive solution, the RW-AX IPs are 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 IPs support 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

  • Smart phone, tablet, laptop, portable game console, digital camera, digital TV, Set Top Box, Over The Top, mobile access point

Tech Specs

Maturity In Production

Features

  • 802.11ax (Wi-Fi 6) MAC:
    • The RW-AX MAC core implements the Wi-Fi 6 (802.11a/b/g/n/ac/ax) standard with data rates of up to 600Mbit/s for 1x1, and 1200Mbit/s for MIMO 2x2 with 2 spatial streams. 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 hardwired modem cores, available in both 1x1 SISO and 2x2 MIMO configurations are optimized for use with the RW-AX MAC IP to form high performance and cost effective 802.11ax (Wi-Fi 6) solutions. The supported features are:
    • Modulation Coding Schemes (MCS) from 0 to 11
    • 20MHz, 40MHz and 80MHz bandwidths
    • 1x1 (SISO) and 2x2 (MIMO) antenna configurations
    • 2x2 (MIMO) with 1 or 2 spatial streams
  • 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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