Edgar Shane

https://lnkd.in/eKMeePJa D2X Multicast Broadcast Disaggregation System Architecture supports an SFN underlay RU Category (A) and SFN Wide Area RU Category (B), From perspective RU on a symbol-by-symbol basis under control D2X scheduler via eCPRI protocol messages D2X virtual frame (1000ms) is constructed. First VFS Bootstrap + L1 Signaling (1 + 2) time domain I/Q is sent to I/Q DAC, upconverted RF, PA. Then emitted antenna air interface aligned GPS 1PPS to begin D2X virtual frame. The D2X virtual frame (1000ms) shows highlighted (red) the virtual sub-frames with a mixture of D2X services for SFN underlay and the SFN wide area topologies. The remaining virtual sub-frames have only SFN wide area D2X services. The D2X scheduler eCPRI protocol messages for RU Type (A) sub-frames. The virtual sub-frame SS (3 + 4) is sent from cloud to RU D2X sites (1, 2, 3). Then all PRB for a symbol with D2X services (5) for wide area SFN are sent. Then RU generates three duplicate symbols for each sector (A, B, C) of SFN. Then for all VBP the PRB for D2X services (5) geo-targeted for SFN underlay is sent with eCPRI signaling to direct to a specific Site RU and sector. These are inserted by RU shown in the correct sector as signaled to complete a symbol. This process repeats for each symbol of a virtual frame with SFN underlay D2X services. If virtual sub-frame has only SFN wide area D2X services, then the SFN sectors are generated and the next step for insertion SFN underlay is skipped by D2X scheduler for each symbol of the virtual sub-frame. This is only an example the D2X scheduler, and algorithms are not specified in D2X standard. Only L1 signaling syntax and semantics for receivers (UE) and eCPRI messages to enable innovation using D2X harmonized 5G NR and aligned using O-RAN principles. #D2X #ORAN

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Below is D2X which uses ATSC 3.0 A/322 Standard as a Baseline. https://lnkd.in/epdHu4C “The purpose of the ATSC 3.0 physical layer is to offer a wide range of tools for broadcasters to choose the operating mode(s) that best fits their needs and targeted devices. This toolbox of technology is expected to grow over time and the ability to upgrade or swap out new technology is enabled with the extensive and extensible signaling in the Preamble. Broadcasters will have the ability to try new technologies out without breaking an existing service. The bootstrap, as described in A/321, allows emitted Frames to be different, including non-ATSC related signals. The time of the next similar frame is signaled so that the existing service can continue.” The D2X physical layer protocol shown below is intended for battery powered receivers (UE) including reduced capability IoT and wearables. D2X is harmonized for future interworking 5G NR (MBS) RAN layer 2 Cloud (datacenter) with 5G PDCP (Packet Data Convergence Protocol). D2X is built on foundation of OFDMA with (24) sub-carriers defined as (1) physical resource block (PRB) in frequency and (N) PRB determines bandwidth of physical layer resources. The use LDPC with Non-uniform constellations with LDPC FEC frame length 16200 bits and 12 code rates. D2X supports SFN topologies with (5, 10, 15, 20, 25) km Inter-Site Distance (ISD). Channel estimation using 10 scattered pilot patterns along with continual pilot patterns. Three IFFT sizes (2K, 4K and 8K) supports various bandwidths (5, 6, 7, 8, 10, 12, 14, 15, 16, 18, 20, 21, 24) MHz RF carriers. The D2X receivers (UE) adapt and use (512, 1024, 2K, 4K, 8K) FFT depending on bandwidth (number of PRB) and for battery savings. The Doppler support selected from 300 km/h to 600 km/h using 1000 MHz RF carrier frequency as reference. https://lnkd.in/e8Q8zcU4 #D2X #ATSC3 #ORAN #5GNR #Interwork

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Handle Both Photo and Video with Canon's RF 35mm f/1.4 L VCM Hybrid Lens https://ift.tt/LftKoNu If you were a fan of the Canon EF 35mm f/1.4L II USM lens then, well, we have very good news for you. Canon is doubling down on one of its more popular lens options and has announced an RF version with the new RF 35mm f/1.4L VCM. Which, as Canon seems to be aiming it, is very much positioned to be a popular hybrid lens for both photo and video pros alike. Let’s take a look at this new 35mm lens and how its new (and lighter) design should pair well with its solid specs and useability features to be a potential go-to lens for a variety of your shooting needs. Introducing the Canon RF 35mm f/1.4 L VCM While we say hybrid lens here quite a bit, make no mistake, this new RF lens from Canon has truly been designed with high-end cinema video needs in mind. The Canon RF 35mm f/1.4L VCM Lens is a wide-angle L-series hybrid prime featuring an ultra-fast f/1.4 maximum aperture to suit working in a variety of challenging and difficult lighting conditions. This upgraded version of its EF counterpart also features a Voice Coil Motor (VCM) for fast floating rear focus and a Nano USM for quick and quiet floating autofocus performance. Its optical design incorporates specially developed elements as well that help to nearly eliminate chromatic aberrations and color fringing for notable clarity and color accuracy. The lens still features two ultra-low dispersion elements and two aspherical elements are also featured to further control various aberrations and distortion for great sharpness and resolution. Price and Availability Overall, this new RF 35mm f/1.4 L VCM should be reliable and versatile with its durable physical construction is dust—and moisture-sealed with ASC (Air Sphere Coating), SSC (Super Spectra Coating), and Fluorine coatings for use in any environment and to prevent ghosting and flares. Here are the full specs and pre-order options: Full-Frame Format | f/1.4 to f/16 Extremely Fast Design, Advanced Optics Voice Coil Motor (VCM) for Rear Focus Nano USM for Fast Floating Autofocus Manual Iris/Full-Time Focus Rings Air Sphere (ASC) Coating Two Aspherical Elements, Two UD Elements Rounded 11-Blade Diaphragm Weather-Sealed Design Attachable Rear Gel Filter Holder Canon RF 35mm f/1.4 L VCM Lens (Canon RF) Designed with high-end cinema video in mind, the Canon RF 35mm f/1.4L VCM Lens is a wide-angle L-series hybrid prime featuring an ultra-fast f/1.4 maximum aperture to suit working in difficult lighting conditions. via No Film School https://ift.tt/lxS21AN June 06, 2024 at 02:38PM

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What is D2X? Introduced NAB 2024 this week Las Vegas. https://lnkd.in/eKMeePJa D2X standards recognize the essential role software plays in defining the Network, disaggregated RAN, UE, and service applications (APPs). Figure 6-1 shows the D2X service reception model, which facilitates market driven APP development and innovation using D2X standards. The horizontal dashed line shows the division of model between what is defined in the D2X standard and what is defined in the market. Figure 6-1 is shown from receiver UE perspective. 1)     The D2X Receiver / UE 2)     UE RF and Baseband Signal Processing Hardware (SDR) D2X (L1-L2) 3)     D2X (DLP) Interface Between HW (SDR) /Software on UE 4)     UE Software (L2-L7) processing for a Service Category (APP_ID) 5)     DST Specific Signaling and D2X Header Extension Signaling for (APP_ID) The L1/L2 layers shown are processed by Hardware/ SDR (2) on UE to acquire D2X signal and demodulate, FEC decode, time de-interleave, etc. and pass DLP L2 streams over DLP Interface (3) from hardware/SDR to software (4) on UE. The APP_ID for a specific Service Category uses extended (5) DST and D2X Header Extension for specific L2 signaling to support APP functionality. Example (10) Use Cases mapped to Service Categories and APPs Developed: ·        Emergency Alerts ·        Entertainment ·        Education ·        Mobile Television ·        Radio, Podcasts ·        File Delivery, Firmware Updates ·        Automotive ·        Smart City ·        5G Convergence ·        5G Convergence First Responders Each use case envisioned in market and developed is virtually mapped to a Service Category and can have a maximum 256 APPs developed and registered D2X network (APP_ID). These use cases are for D2X Multicast Broadcast that may be combined with 5G NR for QoS. The last service category 5G Convergence First Responders is seen as synergistic. Since, D2X and 5G NR (MBS) standards are diverse and optimized with different strengths and topologies. They can be used together synergistically for innovative use of the spectrum in times of emergency. The 5G convergence first responder use case is excellent for 5G NR (MBS) based on unicast framework with low latency and a single cell topology (strength) for first responders group communications. When complemented by D2X with a larger service area topology (strength). That multicast common data video in wider service area for first responders either at or in route to emergency scene. This D2X and 5G NR convergence is synergistic and can help save lives.  Note: for private APP development by government agencies, public safety service, homeland security, etc. These services are usually encrypted in addition virtual sub-frame carrying private service category is not discoverable by public.

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Example D2X OFDMA Multicast Broadcast D2X Virtual Frame 1000ms. Each Virtual Frame Consists of (N) Virtual Sub-Frames. Each Virtual Sub-Frame consists of (N) Virtual Spectrum Slices. A OFDMA Resource Unit (RU) Size = (24) Sub-Carriers. D2X Virtual Slices are (N) x RU. This is used to schedule OFDM resources (8) Virtual slices shown. With D2X Multicast Broadcast (One-to-Many) this OFDMA approach is new and very Flexible. https://lnkd.in/epjUJKRJ

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DVB+IPTV dual platform encoder modulator satellite gateway transfer protocol iptv live streaming

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#ZapperBox v2.6 is set to launch the day after Memorial Day! This demo showcases the "Record Only New" and "Skip Duplicates" features. It also shows how we plan to enable viewers to edit series recordings. Stay tuned for more v2.6 features. #nextgentv #atsc3 #dvr

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Here is the most convenient live streaming solution with multi-function. Can you imagine? Just network cables connection you can acheive: 1. camera controlling 2. Youtube live streaming 3. Video recording 4. Images from 8 NDI cameras switching easily So why not it? #NDIswitcherKD30N #NDI #POE #NDIJoystickController #4Kcamera #wirelessTallyLights #WiFi #RTMP #RTSP #SRT

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Better sound. Less cabling. Less power consumption. Lossless audio transmission. The Loxone Master/Client Technology is here and is supported with a host of new products. Read more: https://bit.ly/3UMNXYe #Loxone #Audio #AudioRevolution #MasterClient #LoxoneProductConference #LPC24 #BuildingAutomation

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Audio For Broadcast: Cloud Based Audio. With several industry leading audio vendors demonstrating milestone product releases based on new technology at the 2024 NAB Show, the evolution of cloud-based audio took a significant step forward. In light of these developments the article below replaces previously published content on the topic. https://buff.ly/3OVt23f

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In the dynamic broadcast and media landscape, TSL’s audio monitoring solutions stand out for their ability to simplify complex workflows and improve operational efficiency. Our products, including multichannel audio level metre displays, loudness measurement, and audio metadata monitoring, are foundational to our offerings. As we continue to innovate, we remain closely aligned with our customers' evolving needs, developing solutions that not only meet technical challenges but also enhance workflows. Discover how our audio monitoring solutions can transform your operations by visiting our website: https://bit.ly/4b8ZQhP #TSL #AudioMonitoring #BroadcastingSolutions #OperationalEfficiency #InnovativeTech #StreamlineWorkflows #RemoteOperation #QualityControl #ContentQuality #TechnicalExcellence

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Upper Table shows D2X Multicast Broadcast RAN Numerology and Supported Bandwidths as a function Resource Blocks (RB) with sub-carrier spacing ΔF = 3000 Hz is constant. https://lnkd.in/eNK5Q7xb A D2X UE is capable 24 MHz and 328 (RB) and the (Fs) and FFT size used for reception is a function of number resource blocks (RB) bandwidth to be received. An D2X 24 MHz UE for reception uses (512, 1024, 2048, 4096, 8192) FFT size depending on bandwidth. More significant D2X 24 MHz UE can be used globally with all bandwidths Table which brings economy of scale. Lower Table shows LTE RAN Numerology and Supported Bandwidths as a function Resource Blocks (RB) with sub-carrier spacing ΔF = 15000 Hz is constant. The 3GPP LTE UE is capable 20 MHz and 100 (RB) and the (Fs) and FFT size used for reception is a function of number resource blocks (RB) bandwidth to be received. An LTE 20 MHz UE for reception uses (128, 256, 512, 1024, 1536, 2048) FFT size depending on bandwidth. More significant LTE 20 MHz UE has been deployed by MNO globally (5, 10, 15, 20) bandwidths Table shown for economy of scale. The thought is emerging D2X New Disaggregated RAN Architecture for Multicast Broadcast aligned O-RAN Principles using broadcast spectrum. The Terrestrial Broadcast System Architecture Has Not Changed in 75 Years until emergence O-RAN and D2X is harmonized 5G NR (MBS). #D2X #Spectrum #Multicast #Broadcast #Interwork #5G

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How To Troubleshoot Invisible Signal Problems in a Live IP Production Workflow https://lnkd.in/ggPMhicV

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https://lnkd.in/eKMeePJa Direct 2 Everything (D2X) was Introduced in Paper delivered at NAB 2024 Las Vegas. D2X envisions a Future Wireless Network Architecture (Non-3GPP) Multicast Broadcast Harmonized with 5G NR (MBS). When Sofware plays important role to Define the Network, Disaggregated RAN, UE and APPs using Cloud-Native Principles for future Interworking. D2X OFDMA improves spectrum efficiency using larger Bandwidths such as 24 MHz shown. This technology can be used in the Broadcast and IMT bands. The one-to-many nature of D2X results in much less system complexity than 5G NR and is designed to interwork as Non-3GPP Broadcast RAT at RAN layer 2. https://lnkd.in/eKMeePJa D2X Resource Block (RB) = 24 Sub-carriers x 3000 Hz SCS = 72000Hz

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