Dali Wireless has filed a lawsuit against CommScope Technologies, alleging infringement of U.S. Patents and asking for an injunction to stop manufacturing, sale and distribution of CommScope OneCell and ION-E products.
Dali’s patents disclose and claim software defined radio systems that are building blocks for 4G/5G era in-building wireless networks. In its complaint, Dali alleges that CommScope incorporated Dali’s patents into its OneCell and ION-E products. Dali has petitioned the court for monetary damages and an injunction preventing CommScope from making, using, or selling its OneCell and ION-E products.
This lawsuit against CommScope is in addition to Dali’s lawsuit, where it claimed infringement of patents for power amplifier systems and methods of operation and software-configurable DAS and efficient baseband predistortion linearization systems. The case was dismissed after Texas Instruments took a license to the patent.
A CommScope spokesperson emailed this response to the story, “CommScope does not comment on pending litigation, and in that regard, I should note that CommScope has a pending patent infringement action against Dali in the Northern District of Texas (case no. 3:16-cv-477).”
CommScope is collaborating with Nokia to develop passive-active antenna solutions which enable operators around the world to optimize tower space usage, increase cell site capacity and lay the groundwork for a 5G ready future.
As operators seek ways to keep up with intense subscriber demand for mobile broadband, they must add capacity to existing radio technology layers. In many cases, as 5G roll-out momentum builds, 5G massive MIMO antennas capable of 3.5 GHz frequency bands may also need to be deployed at the same cell site.
To address this requirement, CommScope and Nokia are developing new passive-active antenna solutions to significantly boost site capacity, while easing deployment considerations. The streamlined design of the passive-active antenna combines the capacity and beamforming benefits of massive MIMO adaptive antenna technology for 5G, as well as high performance antennas for existing radio technologies all within the available, often limited, cell site space.
“The passive-active antenna solutions give operators a strong business case for 5G ready networks, while also increasing the capacity and performance of existing technologies,” said Farid Firouzbakht, senior vice president of RF Solutions, CommScope. “We will continue to build on the momentum with Nokia, developing innovative solutions for operators.”
The passive-active antenna solutions will be released for commercial deployment in 2019. More information can be found at the CommScope stand at Mobile World Congress 2019 in Hall 2, stand 2J30.
When new frequency bands (e.g. 700, 800, 1400MHz) become available, operators need to review the smartest ways to upgrade their wireless network, especially when it comes to deploying new spectrum across base station antennas.
And while the radio frequency (RF) domain is changing quickly, it’s better to plan this network modernization carefully to maximize benefits while minimizing costs in the long term.
I’ve outlined five steps that mobile network providers can take when selecting new antennas:
It’s critical to understand the current and future frequency bands that the operator is planning to use (at least for the next five years) and when these bands will be available. This information serves as a guide for BSA selection.
Next, we need to link technologies to the listed frequency bands, taking into consideration the technology generation, MIMO order, used features (e.g. beam steering) and radio module types (single RAN, separated radio, dual radio band, etc.).
Combiners are mainly used to reduce the number of running cables/jumpers and share two, three or four frequency bands/technologies on the same antenna ports. Using combiners will drive the operator to share the same e-tilt setting with all combined branches.
Next go back to the frequency matrix and add your combiners. By completing this step, the total number of needed RF ports is identified.
Check your network inventory, warehouse and installed antennas. Do your antennas support all mentioned frequency bands or only some of them? How many antennas are needed to cover all these bands and ports?
Try to have two or three options. For example:
Option1: new 22ports (6xLB + 8xHB + 8xBeamSteering).
Option2: Using 2 existing antennas: 14ports (6xLB + 8xHB) and 8ports (8xBeamSteering)
Option3: New 6ports antenna (2xLB + 4xHB) with using existing 8ports (4xLB+4xHB) and 8ports (8xBeamSteering).
Step 5: Categorize with tower structures:
Based on your tower structures and their load capability, you will categorize your sites and select the best antenna solution from them.
New sites: will use new 22ports antenna.
Medium structure sites: 2 existing antennas will be used: 14ports with 8ports antennas.
Heavy duty structures sites: new 6ports with existing 8ports and 8ports (beam steering) antennas will be used.
This should provide a blueprint for deployment. If you have questions or would like support from CommScope, please get in touch.
Elie Kanakri is CommScope’s technical marketing manager for EMEA and APAC regions. He joined CommScope in 2016, responsible for supporting mobile operators and OEMs to develop and modernize their networks. He has been in the wireless communications domain for more than 14 years. Prior to his current position, Kanakri held various positions in the radio planning and optimization department at Syriatel Mobile Telecom. He has a Bachelor’s degree in Electronics Engineering from Damascus University.
Earlier this month, companies and vendors from across the wireless industry came together at Verizon’s facility in Irving, Texas to test 4G LTE technology over the CBRS (Citizen Band Radio Spectrum) spectrum. After the successful initial trials last year, Corning, Ericsson, Federated Wireless, Google, Nokia and Qualcomm Technologies are all collaborating in end-to-end system testing.
The CBRS band is made up of 150 MHz of 3.5 GHz shared spectrum, which until now has been primarily used by the federal government for radar systems. The FCC authorized shared use of the spectrum with wireless small cells in 2016. By using LTE Advanced technology, carrier aggregation and the spectrum access system (SAS), Verizon will be able to use this shared spectrum to add capacity to its network.
The end-to-end system tests are designed to accomplish several goals on the path to widespread commercial deployment:
Corning provided a SpiderCloud Enterprise RAN composed of a Services Node and SCRN-330 Radio Nodes. Ericsson’s Radio System solution is comprised of 4×4 MIMO, 4x20MHz Carrier Aggregation, including CBRS spectrum delivered over infrastructure aggregating Ericsson’s outdoor micro base station (Radio 2208 units) with the indoor B48 Radio Dot System in the same baseband (5216 units). Nokia provided FlexiZone Multiband Indoor BTS, FlexiZone Multiband Outdoor BTS and FlexiZone Controller.
In addition, participants in this ecosystem have set up private LTE sites which are using CBRS spectrum. Private LTE networks are being engineered to meet the needs of enterprise customers who want greater control over their LTE solutions including private on-site servers, control over access to their designated LTE network, as well as increased throughput and reduced latency through dedicated backhaul.
The end-to-end system testing, which began in February and will continue over the next several weeks, has provided actionable insights and have significantly advanced CBRS spectrum deployment feasibility.
“The promise of the CBRS band and enabling the use of wider swaths of spectrum will make a big impact on carrying wireless data in the future. These trials are critical to stress test the full system,” said Bill Stone, VP technology development and planning for Verizon. “There are many players in the CBRS ecosystem and these successful trials ensure all the various parts perform together as an end-to-end system for our customers’ benefit. We want to ensure devices efficiently use CBRS spectrum and that the new components effectively interact with the rest of the network.”
At the conclusion of this testing, equipment will be submitted for certification through the FCC. Following that deployment can then begin. Both commercial deployment of LTE on CBRS spectrum and devices that can access the CBRS spectrum are expected to begin in 2018.
CommScope, Ericsson Complete SAS Interoperability Testing for CBRS
To help ensure their readiness for commercial deployment in the CBRS wireless spectrum, CommScope and Ericsson have successfully completed interoperability testing of their equipment. The testing is one of the first successful interoperability tests using the Wireless Innovation Forum’s release 1.2 specifications.
“CommScope’s team of architects, developers and engineers have been building an industry-leading SAS for nearly two years,” said Tom Gravely, vice president of research and development, Network Solutions, CommScope. “Completion of interoperability testing with a major radio equipment provider such as Ericsson validates our SAS design and readies us for commercial deployment.”
The interoperability test confirmed that CommScope’s Spectrum Access System (SAS) and Ericsson’s radio infrastructure with CBRS spectrum support will work together as part of a CBRS network. The rigorous SAS–Citizens Broadband Radio Service Device (CBSD) interoperability testing used a battery of scenarios to verify that both products meet governmental requirements and industry protocols, as well as CommScope’s and Ericsson’s respective quality standards.
“Ericsson offers a comprehensive portfolio of CBRS network solutions that will help operators of all sizes deploy in this spectrum quickly and successfully,” said Paul Challoner, vice president of Network Product Solutions, Ericsson. “Additional milestones need to be reached for CBRS to become a reality, but we are pleased to complete interoperability testing with CommScope as part of the developmental process.”
In a CBRS network, a SAS and CBSD work together to ensure that the appropriate wireless signals are transmitted and received between the core network and end-user devices, while managing interference. An Environmental Sensing Capability (ESC) works with the SAS to identify the wireless signals of incumbent users to avoid interference from CBSDs. CommScope is one of four ESC operators conditionally approved by the FCC to provide SAS and ESC services.
CommScope has reached an agreement co-owned CCI and CCAI (collectively, CCI) that resolves all litigation between the parties in India and the United States, according to a press release. The litigation relates to advanced base station antenna technologies that enable better performance in wireless networks.
Under the terms of the agreement, CommScope has taken a worldwide license to CCI’s patents concerning asymmetrical twin beam antenna techniques. CCI and its co-owned affiliates have taken worldwide licenses to specific CommScope patents relating to systems for enabling electrical tilt in base station antennas. Both parties recognize the validity, scope and applicability of their relevant patents and fully acknowledge the fundamental principles and techniques underpinning the relevant patents.
CommScope and CCI have made substantial investments in research and development in these areas, and each recognizes the need to protect the patentee’s rights while allowing for appropriate licensing agreements that allow customers to have access to the most up to date technologies at fairly competing sources. This agreement provides freedom of design for their technical teams and should accelerate further research and development while improving their ability to compete in global markets. Further details of the agreement will not be disclosed.
CCI is a network infrastructure innovation company providing mobile operators around the world with cost effective, revenue increasing RF solutions that are rapidly deployable, fit-for-purpose and maximize the use of valuable spectrum and existing network investments.