Wednesday, May 17, 2023

NTT demos 1.4Tbps wireless in the sub-THz band

Marking a major step toward 6G, NTT achieved the world’s first “orbital angular momentum (OAM) multiplexing high-capacity wireless transmission—at 1.44 Tbps—using an ultra-wide bandwidth of 32 GHz.  This is the equivalent of approximately 35,000 ultra-high-definition 4K videos (at about 40 Mbps).

The demonstration used the sub-THz band within the range from 135 GHz to 170 GHz.

NTT said its approach used an analog circuit called a “Butler matrix” to increase the spatial multiplexing order by multiplexing multiple OAM waves. This approach reduces the enormous amount of digital signal processing required to eliminate interference between multiplexed data streams in high-capacity communications exceeding one terabit.

NTT succeeded in developing an antenna-integrated Butler matrix that operates with a wide bandwidth and low loss. The antenna-integrated Butler matrix is designed to simultaneously generate and separate eight different OAM waves over a very wide bandwidth, i.e., 135 to 170 GHz, which can be used to multiplex and transmit eight data signals. Moreover, by performing OAM multiplexing transmission with two different polarizations, it is possible to multiplex and transmit twice as many data signals simultaneously without them interfering. 

This technology is expected to enable (i) broadband and high-speed wireless transmission comparable to optical transmission systems and (ii) seamless connection between wireless and optical transmission systems without the need for a complex digital signal-processing system for spatial multiplexing, since the analog circuit (i.e., the Butler matrix) handles the multiplexing of OAM waves. The next step in this development is to conduct demonstrations over longer distances (exceeding 100 m) while envisioning various applications of this technology in the real world, including wireless backhaul/fronthaul between base stations and relay transmission.

CableLabs issues 100G Coherent PON specification

Earlier this month, CableLabs issued an Architecture Specification for Coherent Passive Optical Networks (CPON) 100 Gbps (100G) Single Wavelength PON. 

Promising increased capacity per wavelength, extended reach and higher port density, the new spec brings coherent detect to PON access networks. Existing PON standards rely on Intensity-Modulation Direct-Detect (IM-DD) technology, which is approaching limits in terms of capacity and network reach.

With coherent detection, 100G CPON extends the reach of PON over fiber networks up to 80 kilometers. Current PON implementations typically are 25 km or less.

In addition, CPON offers a split ratio up to 512:1, providing 100 Gbps to support up to 512 end users on a single OLT port while maintaining a typical reach of 25 kilometers.

Cisco’s revenues rise 14% on strong quarter

Cisco reported third quarter revenue for the period ended April 29, 2023 of $14.6 billion, up 14% year-over-year. Net income (GAAP) was $3.2 billion or $0.78 per share, and non-GAAP net income of $4.1 billion or $1.00 per share, up 15% year-over-year.

"We once again delivered a strong quarter in a dynamic environment," said Chuck Robbins, chair and CEO of Cisco. "In Q3, we delivered record revenue and double-digit growth in both software and subscription revenue. As key technologies like cloud, AI and security continue to scale, Cisco's long-established leadership in networking, and the breadth of our portfolio position us well for the future."

"Our operational discipline and focused execution resulted in strong top and bottom-line growth, margin expansion and record operating cash flow," said Scott Herren, CFO of Cisco. "Our healthy backlog, recurring revenue streams and RPO, as well as the improving availability of supply, underpin our confidence to increase full year guidance."

Some highlights:

  • Total revenue was up 14% at $14.6 billion, with product revenue up 17% and service revenue was up 3%. 
  • Revenue by geographic segment was: Americas up 13%, EMEA up 16%, and APJC was up 11%. 
  • Product revenue performance was led by growth in Secure, Agile Networks up 29%, Internet for the Future up 5%, End-to-End Security up 2%, and Optimized Application Experiences up 12%. Collaboration was down 13%.
  • On a non-GAAP basis, total gross margin, product gross margin, and service gross margin were 65.2%, 64.5%, and 67.3%, respectively, as compared with 65.3%, 64.1%, and 68.9%, respectively, in the third quarter of fiscal 2022.
  • Total gross margins by geographic segment were: 64.2% for the Americas, 66.6% for EMEA and 66.4% for APJC.

Medusa cable to connect 11 countries across Mediterranean

Orange Tunisia and Medusa Submarine Cable System signed an agreement to deploy a submarine cable stretching from Lisbon to the Egyptian city of Port Said, passing various Mediterranean countries en route. It will have 16 landing points in different countries including Portugal, Morocco, Spain, Algeria, France, Tunisia, Italy, Greece, Cyprus and Egypt.

At more than 8,000 km in length, the system is believed to be the longest in the Mediterranean. Implementation is scheduled for the end of 2025.

Juniper integrates ChatGPT into Marvis AI

Juniper Networks is integrating ChatGPT with Marvis, its virtual network assistant (VNA) driven by Mist AI. This enables Juniper customers and partners to access public-facing knowledgebase information using Large Language Models (LLM). In addition, new Marvis integrations with Zoom enable superior video conferencing experiences while significantly reducing troubleshooting costs. 

Juniper says ChatGPT brings more human-like conversational capabilities, particularly with respect to documentation and support issues. Specifically, Marvis now leverages a LLM API to respond to user queries for technical documentation and other publicly available historical knowledge base information. For example, customers can ask Marvis “What do the Access Point LED lights mean?” or “List steps to configure Juniper campus fabric” and receive an accurate and direct response in the typical ChatGPT style in addition to a list of relevant documents. 

“AI is the next step in automating tasks that typically require a human IT domain expert, improving how IT teams operate the network with AI-driven tools like Marvis and its conversational interface,” said Bob Friday, Chief AI Officer at Juniper Networks. “Juniper Mist has always been a pioneer in utilizing proven AIOps to deliver assured user experiences from client to cloud, and with these latest LLM enhancements, Marvis will provide even more actionable knowledge and be an even more valuable member of the IT team.” 

In addition, Juniper introduced a new AP24 Access Point. This 2.4 GHz/5 GHz/6 GHz tri-band capable device (dual band concurrent) supports up to 3.6Gbps throughput. It also features the standard Juniper Mist dedicated scanning radio for data collection and intelligent Radio Resource Management (RRM) capabilities to intelligently choose the best band to use. 

The AP24 complements other Wi-Fi 6E access points recently announced by Juniper, which include the AP45 (2.4 GHz/5 GHz/6 GHz quad-radio, 4x4:4SS, vBLE array) and AP34 (2.4 GHz/5 GHz/6 GHz quad-radio, 2x2:2SS, omni BLE).

ServiceNow commits $1 billion in software ventures

ServiceNow will deploy $1 billion in investment capital by 2026 to ServiceNow Ventures, its global strategic investment arm.

The company aims to grow and scale the next generation of enterprise technology companies in combination with its ServiceNow Platform. Core investment areas include AI, ML, hyper automation, distributed cloud, total experience, and data intelligence. In addition to investing capital, ServiceNow Ventures advises companies at all stages of growth, from validating product strategy to helping scale go‑to‑market programs.

“Net‑new innovation is the only way forward. With our multi‑faceted investment strategy, ServiceNow Ventures is seeking out visionary founders and their game‑changing ideas to bring greater value to the ServiceNow Platform, our broader ecosystem, and the industry as a whole,” said Philip Kirk, senior vice president of corporate business development at ServiceNow. “With a steadfast commitment to transform the future of work, we are excited to deepen our investments, collaboration, and mentorship with companies that share in our purpose and mission to revolutionize the way work gets done.”

"There is a significant opportunity to accelerate growth with both new and emerging go‑to‑market partners in targeted regions across the world,” said David Parsons, senior vice president of ecosystem ventures at ServiceNow. “The goal of our Ecosystem Ventures initiative is to make strategic investments that can close specific go‑to‑market capability, competency, and capacity gaps.”