802.11ay Training | Next-generation 60 GHz Communication for 100 Gbps Wi-Fi

802.11ay Training, IEEE 802.11ay: Next-generation 60 GHz Communication for 100 Gbps Wi-Fi

802.11ay Training covers the design elements of 802.11ay standard, Wi-Fi communications in unlicensed mm-Wave bands, providing 100 Gb/s to support  new applications such as VR/AR (virtual reality/augmented reality), and wireless backhauling.

The 802.11ay PHY and MAC are built upon IEEE 802.11ad with main design elements of IEEE 802.11ay include MIMO, channel bonding, improved channel access, and enhanced beamforming training. 802.11ay is the next-generation Wi-Fi standard for the 60 GHz band.

IEEE 802.11ad supports transmission rates of up to 8 Gbps using single-input-single-output (SISO) wireless transmissions over a single 2.16 GHz channel, while IEEE 802.11ay, increases the peak data rate to 100 Gbps by supporting multiple independent data streams and higher channel bandwidth, backward compatibility and coexistence with Directional Multi-Gigabit (DMG) stations (STAs). DMG refers to IEEE 802.11ad and Enhanced DMG (EDMG) refers to devices that can support features of and IEEE 802.11ay standards.

Learning Objectives

Participants will learn about the main design elements of IEEE 802.11ay, including

• Challenges in meeting the demand for 100 Gbps services such as AR/VR
• Next-generation 60 GHz Communication for 100 Gbps Wi-Fi
• Basic features of 802.11ay Next Generation 60 GHz (NG60)
• IEEE 802.11ay Design Elements
• mm-Wave Radio Propagation Characteristics
• PHY and MAC enhancements being defined by the IEEE 802.11ay
• Key similarities and differences between IEEE 802.11ay vs. 802.11ad
• 802.11ay Physical Layer (PHY) Overview
• Enhanced directional multi-gigabit (EDMG) PHY
• EDMG Packet
• Single Carrier (SC) and OFDM Modulations
• DMG vs. EDMG PHYs
• Channel Bonding and Aggregation
• MIMO Transmissions
• MIMO(SU-MIMO and MU-MIMO)
• Channel Bonding
• Improved Channel Access
• Enhanced Beamforming Training

Who Should Attend

• Software Engineers
• Hardware Engineers
• Design Engineers
• Verification and Validation Engineers
• Test Engineers
• Project Managers

Course Topics

Overview of IEEE 802.11ay

• 802.11ay for Multi-gigabit Wi-Fi
• 802.11ay Next Generation 60 GHz (NG60)
• IEEE 802.11ay vs. 802.11ad
• Extending 802.11ad capabilities
• Channel bonding and aggregation Enhanced Directional Multi-Gigabit (EDMG)
• Beacons and channel access
• Implementing DL MU-MIMO and Downlink multi-user MIMO (DL MU-MIMO).
• Overview of IEEE 802.11ad amendment to the 802.11 standard
• Unlicensed spectrum at the millimeter wave (mm-Wave) band
• Throughput and reliability requirements of new applications
• Reality (AR)/virtual reality (VR) and wireless backhauling
• New physical (PHY) and medium access control (MAC) specifications for 100 Gbps communications
• 802.11ay technical advancements

802.11ay Use Cases

• Throughput and reliability with lower latencies
• AR/VR applications
• Mobile offloading
• High-bandwidth connectivity to multiple TV and monitor displays,
• Indoor and outdoor wireless backhaul

Main Design Elements of IEEE 802.11ay

• Multiple-input-multiple-output (MIMO)
• Channel bonding
• Improved channel access
• Enhanced beamforming training
• mm-Wave radio propagation characteristics
• Enabling mechanisms defined in IEEE 802.11ay
• PHY and MAC amendments to the 802.11 standard
• Wi-Fi devices with 100 Gbps using the unlicensed mm-Wave (60 GHz) band
• 60 GHz transmissions

Channel Bonding and Aggregation

• 60 GHz
• 14 GHz of bandwidth
• channels of 2.16, 4.32, 6.48, and 8.64 GHz bandwidth
• The channel center frequencies for the 2.16 GHz channels
• 32, 60.48, 62.64, 64.80, 66.96, and 69.12 GHz for channel numbers 1 through 6, respectively
• 802.11ay and mechanisms for channel bonding and aggregation
• 802.11ay requirement for y enhanced directional multi-gigabit (EDMG) STAs

Directional MIMO Communication

• A typical DMG implementations
• Multiple antenna elements used by DMG STAs
• Beamforming gain vs. multiplexing gain
• To achieve both beamforming and multiplexing gain in 802.11ay
• New mechanisms to enable MIMO operation
• Single-User MIMO (SU-MIMO) and downlink Multi-User MIMO (MU-MIMO)
• Digital pre-coding at baseband to compliment analog beamforming

SU-MIMO and MU-MIMO

• MIMO Channel Access
• SUMIMO or a MU-MIMO
• Beamforming (BF) training
• Sector Level Sweep (SLS)
• SU-MIMO Beamforming
• SISO Phase
• The SISO phase of SU-MIMO beamforming
• MIMO Phase
• MU-MIMO Beamforming

EDMG PHY Packet Format

• IEEE 802.11ay packet structure
• A single packet format for the three EDMG PHY modes: SC, OFDM, and control
• Packet used for single channel or channel bonding operation,
• Packet used for SISO or MIMO transmission
• Packet used for beamforming training/tracking
• Non-EDMG portion recognizable by DMG stations.
• The L-STF (legacy-short training field)
• L-CEF (legacy-channel estimation field)
• Compatible with the preamble defined in IEEE 802.11ad, and
• Non-EDMG portion EDMG portion
• Pre-EDMG modulated fields EDMG modulated fields
• EDMG-Header-A field
• Information to require interpreting EDMG packets, including bandwidth, Modulation and Coding Scheme (MCS), and number of spatial streams
• The EDMG-STF and EDMG-CEF fields
• Estimate various signal parameters
• EDMG-Header-B and MU-MIMO packet.
• Non-EDMG portion

Data Field Format

• The data field
• Payload data and possible padding
• Scrambled, encoded, and modulated according to an EDMG MCS
• Golay sequence
• The SC block size
• 512 × NCB symbols for both SISO and MIMO transmissions
• MCSs defined in IEEE 802.11ay for the SC mode
• BPSK, QPSK, 16 QAM, and 64 QAM modulations
• LDPC codes with rates of 1/2, 5/8, 3/4, 13/16, and 7/8

Training (TRN) Field Format

• The TRN field enables
• Transmit and receive beamforming training
• Beam refinement protocol (BRPEDMG TRN field structure for EDMG BRP-RX packets,
• EDMG BRP-TX packets
• EDMG BRP-RX/TX packets
• The “basic unit” of the TRN field
• TRN subfield,
• 6 Golay complementary sequences
• IEEE 802.11ay beacon interval structure

Multiple Channel Access

• EDMG transmissions
• EDMG stations and secondary 2.16 GHz, 4.32 GHz or 6.48 GHz channels
• Adjacent or non-adjacent to the primary channel
• EDMG STAs and physical and virtual carrier sensing
• Coexistence of DMG and EDMG STAs
• Network announcement and management
• Multiple Channel Access Through Scheduling
• The AP/PCP
• EDMG Extended Schedule Element (ESE)
• Example of IEEE 802.11ay multiple channel access via scheduling.
• Multiple Channel Access Through TXOP

IEEE 802.11ay Medium Access Control Layer

• Main changes made to the IEEE 802.11ad MAC layer
• MAC support for MIMO transmission and multi-channel operation
• Beacon Interval
• IEEE 802.11ay and access to the medium in beacon intervals (BIs)
• Beacon header interval(BHI)
• Data transmission interval (DTI)
• Beacon transmission interval (BTI)
• Association beamforming training (ABFT)
• Announcement transmission interval (ATI)
• Slots for transmitting sector sweep (SSW) or short SSW frames
• Multiple Channel Access
• Primary channel size
• Channel aggregation support
• Secondary channels
• physical and virtual carrier sensing (i.e., network allocation vector or NAV)
• Multiple Channel Access Through Scheduling
• EDMG extended
• schedule element (ESE)
• MIMO Channel Access

IEEE 802.11ay Beamforming Protocol

• SU-MIMO Beamforming
• MU-MIMO Beamforming
• The SISO phase of SU-MIMO beamforming
• The MIMO phase of SU-MIMO beamforming
• SU-MIMO BF protocol
• Beamforming in BTI
• Beamforming in A-BFT
• Inter-AP cooperation
• High frequency and low frequency cooperation
• Dual connectivity
• Power management
• Uplink multi-user MIMO
• Cloud-RAN based WLANs
• Analog Beam Tracking (ABT)
• Association Beamforming Training (A-BFT)
• Contention-Based Access Period (CBAP)

IEEE 802.11ay Best Practices

• 802.11ay PHY and MAC Design Verification
• 802.11ay PHY and MAC Operation Validation
• 802.11ay PHY and MAC Test Cases
• Tools and Procedures