RADWIN SOLUTIONS ENTRPRISE Broadband Wireless Access Video Surveillance Remote area BB Connectivity Small Cell Backhaul
Multipath/LOS/nLOS/NLOS 7/22/2015 2 Confidential Information
Small Cell Deployment - Macro Site - Small Cell Pico Site
Small Cell Site - Confidential -
Use NLOS Backhaul Where wireline BH is not available or cost prohibitive Not all locations have line of sight (LOS) to the aggregation point The street topography requires addressing diffraction, reflection and obstruction of direct signal paths LOS MW is optimized for tower-to-tower connectivity, not for Street level deployments Most desired outdoor small cell locations are in dead zones no LOS to the Macro-site. The more street-level small cells, more the need for NLOS Backhaul 7/22/2015 Confidential Information 5
Small Cell Deployment
RADWIN SCB Beam Forming Solution
Small Call Site
Typical BWA RADWIN 5000 PtMP Installation Interference is mainly in Uplink as the HBS Built in backhaul from HBS site to the Service has sectorial wide beam antenna (60,90,120 Provider premises deg) to cover a wide sector while HSU has Assumption that the provider premise is located within the served sector narrow beam antenna as it need to link only to one point (HBS) Service provider Premises RADWIN 5000 PtMP Service provider Network
Interference Interference is mainly in Uplink as the HBS In this scenario the interference is mainly in UL has sectorial wide beam antenna (60,90,120 as the HBS has wide sector antenna (90 or 120 deg) while deg) to HSU cover has a wide narrow sector antenna while HSU has narrow beam antenna as it need to link only to one point (HBS) Service provider Premises Other RADIO Link Interference Other RADIO Link Interference RADWIN 5000 PtMP Service provider Network
HBS With Sector Antenna
HBS With Sector Antenna and Interference
HBS With Beam Forming Antenna and Interference
Auto Beam Steering -30 0 RADWIN JET beam pattern Step 1 Clear LOS but HSU sync to HBS in the wrong Azimuth before complete antenna alignment. HBS beam is -30deg, RSS is not optimal Step 2 User realign the HSU toward the HBS. HBS perform online tracking and auto beam steering toward the azimuth of the HSU (0deg), RSS is optimal CONFIDENTIAL 14
RADWIN s Beamforming Antenna Spec The beamforming antenna transmits in two modes:» With narrow beam-width over a sector of 90» With wide beam-width of 90 (for HSUs acquisition or upon message broadcasting) Antenna Gain:» 20dBi @ 5.x GHz (vs. ~14dBi standard sector antenna)» 17dBi @ 3.x GHz Antenna beam-width:» Azimuth: 8 @ 5.x and 15 @ 3.x GHz» Elevation: 15 @ 3.x GHz and 30 @ 3.x GHz Tx Power (across all modulations):» 25dBm @ 5.x GHz (vs.18dbm in high modulations in RADWIN 5000)» 23dBm @ 3.x GHz Beamforming resolution <1
RADWIN 5000 JET Main content: Part of RADWIN 5000 family Same look and feel like RADWIN 5000 Support Nomadic application Continuous HBS antenna alignment 5MHz Channel BW by JET-HBS @ 3.x GHz Dynamic CBW for 3.x & 5.x GHz HBS/HSU (20/40Mhz) 16
Modulation - Quadrature Amplitude Modulation (QAM)
Antenna Modes - MIMO 2x2 MIMO for maximum capacity: Dual pole antenna on each site (Embedded/Integrated/External) Stream a Stream b HSU HBS
Antenna Modes - Diversity Diversity Optimizing received signal A single ODU with 2 receiving antennas Signal Combining is applied at the receiving site(s) Optimized signal with improved SNR is produced Better performance in multipath environments nlos conditions Increases system gain up to 3dB Single Pol. Antenna Single Pol. Antennas HBS HSU
Smart Dynamic Channel Bandwidth (DCB) The ODU selects the appropriate: CBW, Modulation, MIMO/Diversity & Guard that provides the highest throughput The Dynamic CBW is independent on the HBS and HSU. For example: HBS (UL) work in 80Mhz while HSU work in 20Mhz Dynamically CBW operates on 20/40/80 MHz CBW Spectrum allocation of Dynamic CBW in case of interference F2 Dynamic CBW step 3-20Mhz F1 20Mhz F2 Dynamic CBW step 2-40Mhz 40Mhz F1 F2 F3 F4 Dynamic CBW step 1-80Mhz 80Mhz
Dynamic Channel Bandwidth Selection (D-CBS) Operates independently per HSU and per UL/DL direction Supported CBW by the system 10/20/40/80Mhz (80Mhz supported by D+) Dynamically (D-CBS) operates on 20/40/80 MHz channel BW Support asymmetric D-CBS in UL & DL CBW = 20Mhz Modulation = 2x64 QAM 3/4 CBW = 40Mhz Modulation = 2xQPSK 3/4
RADWIN 5000 JET Main content: Part of RADWIN 5000 family Same look and feel like RADWIN 5000 Support Nomadic application Continuous HBS antenna alignment 5MHz Channel BW by JET-HBS @ 3.x GHz Dynamic CBW for 3.x & 5.x GHz HBS/HSU (20/40Mhz) 7/22/2015 22
Thank You! Any Questions?