Saturday, November 24, 2018

Mitsubishi and DOCOMO hit 25 Gbps at 100m with 16x16 MIMO

Mitsubishi Electric Corporation and NTT DOCOMO achieved two 5G throughput records: 27 Gbps at 10m and 25 Gbps at 100m.

The outdoor wireless transmission test was performed using a 28GHz-band massive-element antenna systems and 16-beam spatial-multiplexing technology with 500MHz bandwidth. The trial took place in Kamakura, Kanagawa Prefecture Japan from September 10 to 28, 2018.

Base-station antennas installed on the wall of a building directed beams to mobile-terminal antennas installed on the rooftop of a vehicle. The achieved peak data rates correspond to spectral efficiency of 67bps/Hz5, believed to be the world's best performance for 28GHz-band mobile telecommunication.

Anritsu releases 400GbE PAM4 BER Test

Anritsu announced the commercial release of its 64-Gbaud PAM4 Pulse Pattern Generator (PPG) and 32-Gbaud PAM4 Error Detector (ED) for use in 400GbE testing.

The new PAM4 BERT modules can be installed in the Anritsu Signal Quality Analyzer-R MP1900A series to implement a bit-error-rate test solution using either the 26.5625 Gbaud PAM4 x 8 lanes or 53.125- Gbaud PAM4 x 4 lanes methods. When using the PAM4 method to encode data as four amplitude levels, the gap between signal levels is one-third compared to the NRZ method, which reduces the unit time per symbol at higher baud rates, emphasizing the importance of signal quality in achieving high-speed transmissions.

Hong Kong’s HKT builds all-fiber shared infrastructure on MTR line

Hong Kong's HKT is deploying an all-fiber mobile network architecture on a Mass Transit Railway (MTR) line to enable multiple operators sharing the network to provide ubiquitous high-quality mobile broadband to their

The DIS is deployed on the Shatin to Central Link (SCL) which is a new metro line of Mass Transit Railway under construction. The Central station is an important hub in the Golden Bay Area of Victoria Harbour. Connecting Hong Kong Island and the New Territories, this 17-kilometer line has a total of 10 train stations.

Huawei is supplying the innovative Digital Indoor System (DIS), which has the capability to evolve into future-oriented 5G networks without the need for additional cabling. Specifically, the shared indoor network is based on Huawei's LampSite Sharing solution, which allows multiple operators to share a common indoor network where radio headends of high, medium, and small power specifications can be co-deployed.

The indoor network for the SCL is constructed by HKT as the lead operator and will be shared by all mobile operators in Hong Kong.

Dr. Henry Wong, Head of Strategic Wireless Technology and Core Networks of HKT Engineering, said, "We are committed to providing users with high speed MMB service and wide network coverage for the best possible user experience. Large public venues and locations such as metro stations and lines, shopping malls, airport, etc. demand a large capacity to meet the diversified service requirements, creating the need for onward evolution into 5G for technological and economic reasons. Huawei's digital network sharing solution perfectly meets such requirements in many ways."

Mr. Ritchie Peng, President of Huawei Small Cell Product Line, said, "We are happy to open a new chapter of all-fiber architecture with HKT. Indoor places vary a lot and have diverse requirements, requiring differentiated solutions. The rapid MBB development also requires operators to focus on 5G in their network construction. Huawei is always a good advocate and exerciser of indoor digitalization. We are dedicated to offering more competitive indoor digital solutions to help our partners maximize the value of their networks."

Cisco to acquire Ensoft

Cisco announced plans to acquire Ensoft, a privately-held company headquartered in Harpenden, England, that provides software solutions for service provider networks. Financial terms were not disclosed.

In a blog posting, Cisco's Rob Salvagno said the deal advances its strategy in unified transport and service layers with Segment Routing (SR) and Ethernet Virtual Private Networks (EVPN.

Ensoft was established in 1997 and now has approximately 70 engineers and an annual turnover of 10 million pounds. Its areas of expertise include routing and switching (BGP, all the IGPs, MPLS, multicast etc), Carrier Ethernet (IEEE technologies, pseudowires and VPLS, E-OAM etc), and residential subscriber management (eg PPP/IP sessions, scalable wholesale access).