T-Mobile USA, Inc.

Grzegorz Wosik

Alan Denis MacDonald

Jeff Ahmet

Michael A Bishop

Taha Najeeb

Keith Wood

Waqas Gull

Aditya Mehta

Muhammad Shakil

Boris Maisuradze

Jay Eritsland

Tomas Soderberg

Aaron Sorrell

Techniques for proxy based network access are discussed herein. In some examples, the techniques can be implemented in a network proxy device for Citizens Broadband Radio Service (CBRS). A base station or a domain proxy device may manage or otherwise use CBRS resources by exchanging signaling messages with a Spectrum Access System (SAS). The base station or domain proxy device may transmit signaling messages in a first private network to a network device bridging the first private network and a second private network with limited access to a public network. The network device send proxy message(s) in response to the signaling messages to the SAS and can establish an encrypted session layer or application layer tunnel between the base station and/or domain proxy device. The proxy based network access preserves secure networks while still allowing limited messaging with other public or private networks.

Proxy based network access

Systems, methods, and network topology for network address translation (NAT) are disclosed. In some embodiments, a cluster of NAT devices shares at least one backup NAT device configured to back up all or some of the NAT devices in the cluster. Each NAT device, including the backup NAT device, advertises its status at a regular interval to a router. If the router determines that an active NAT device is no longer advertising its status, the router can send data to the backup NAT. In some embodiments, the router routes traffic to active and backup devices based on networking protocols such as Border Gateway Protocol (BGP) and/or Open Shortest Path First (OSPF). The router can also route data to NAT devices using a round-robin algorithm.

Network address translation in networks using multiple NAT devices

Growing community of inventors

Bellevue, WA, United States of America

Grzegorz Wosik