Tag Archives: wireless systems

Your Death, My Life: Ericsson versus Huawei

The Trump administration’s increasingly aggressive effort to cripple China’s Huawei has presented Ericsson the opportunity to lead the rollout of 5G technology around the world.  The Swedish company is emerging as the steadiest player in the $80-billion-a-year cellular-equipment industry, telecommunications executives and analysts say, because it makes a technically advanced product that one rival, Nokia,was late to develop and that Huawei may not be able to make in the future because of recent U.S. measures.

The Trump administration last month stepped up efforts to hamper Huawei by imposing export restrictions that make it harder for the company to buy computer chips that are produced using U.S.-designed equipment —a move that could prevent it from manufacturing advanced 5G hardware. The U.S. has also sought to boost Huawei’s rivals by providing loans to wireless carriers in developing countries so they can buy equipment from non-Chinese suppliers, among other moves.

U.S. Attorney General William Barr in February suggested that the U.S. government take a financial stake in Ericsson or Nokia, or both, to “make it a more formidable competitor and eliminate concerns over its staying power.”

The White House quickly backed away from the idea….Ericsson provides equipment for all three major U.S. carriers: AT&T Inc., Verizon Communications Inc. and T-Mobile US Inc….

Ericsson struggled in the cellular-equipment industry against China’s Huawei and ZTE Corp., which sold comparable products, often at lower prices. Among Ericsson’s key innovations are cellular antennas. Ericsson’s use a new technology, called massive multiple-input multiple-output, or massive MIMO, that sends wireless signals in strong jets to different devices. Typical cellular antennas, which sit on steel towers or rooftops, send wireless signals in a wide cone, similar to the way a garden hose sprays water.

Wireless carriers want Ericsson’s concentrated wireless technology because it enables fast connections and allows them to serve more customers using existing cellular towers. Building new towers is unattractive because it is a bureaucratic process that can cost tens of thousands of dollars….Ericsson notched a victory the spring of 2020 when it joined Huawei in winning 5G contracts to supply all three major wireless carriers in China, the world’s second-biggest telecom-equipment market

The big question for wireless carriers and equipment makers is whether Huawei can continue making massive MIMO 5G equipment with the quality that wireless carriers have come to expect. The technology requires supplies from the world’s top semiconductor companies, but the Trump administration’s recent actions may mean even foreign chip suppliers must seek Washington’s approval to sell to Huawei. For now, Ericsson is assuming China has advanced its own semiconductor industry enough to continue supplying Huawei.

Excerpts from Stu Woo, Ericsson Emerges as 5G Leader After U.S. Bruises Huawei, WSJ,  June 2, 2020

Manipulation of Wireless Networks -Military

From the DARPA website and DARPA-BAA-14-44 WND Phases 2 and 3

The majority of work to develop and mature military wireless networks to date has focused on efficiency and stability in benign conditions…As the use of wireless systems expands, the likelihood of network compromise (whether maliciously or by unwitting misconfiguration) will increase. Beyond the conventional node-by-node security in use today, a set of network-based checks are needed to ensure that misinformation inserted into the control protocols does not disable the network functionality.

The Wireless Network Defense (WND) program is developing and demonstrating new technology to protect the control protocols of wireless networks from the effects of advanced attacks or other forms of compromise. The program focuses on the protocols at the network and medium access control (MAC) layers of the network stack with the goal of protecting those protocols that coordinate among the distributed devices’ management of resources such as spectrum, time, and power, and delivery of information.

The development of this technology will both improve the robustness of the class of wireless networks that are being procured and fielded in the near future, and also provide a reliable foundation on which to build the next generation of wireless systems. These new defenses will minimize the impact of attacks on network control and will force attacks to be observable and attributable in order to be effective.

Ideally…[one] should anticipate both passive listeners and active attackers; colluding attackers; dynamic attacks; and informed adversaries…[One]should assume that passive listeners and  active attackers will be able to collude. That is, the threat model is a real-world adversary.  Systems should be designed to mitigate attacks under all combinations of attackers and attacks…. [One]should further design mitigations and enhancements such that these mitigations and enhancements cannot themselves be leveraged by a knowledgeable adversary to attack the network.

See DARPA-BAA-14-44 WND Phases 2 and 3