Abstract: A truck-mounted flipped automated operation equipment for a well workover, which includes a derrick and an operation platform. A guide rail is arranged on the front and back sides of the center of the operation platform, respectively, and a hydraulic clamp mechanism is arranged on the guide rail. An inner clamp frame support is arranged under the derrick, and a lifting cylinder is fixed on the left side of the derrick. The piston part of the lifting cylinder is provided with a fixed plate configured to rise and fall with the lifting cylinder, and the right side of the operation platform is hinged on the fixing plate. The fixed plate is further provided with a flipped cylinder. The cylinder barrel of the flipped cylinder is hinged on the fixed plate, and the piston part of the flipped cylinder is connected to the lower part of the operation platform.

Abstract: Protocols for OFDM/OFDMA/SC-FDMA based wireless networks provide adaptive inter-cell interference management without explicit spectrum or frequency planning. Base stations and mobile stations acquire information about subcarrier allocation from a handoff protocol. The mobile stations can also acquire this information using cognitive sensing. Cognitive sensing can be rewarded by the base station. Using this information, subcarriers can be allocated randomly, with blind optimization, or by joint optimization. The stations can use game theory to select among the different optimization strategies.

Abstract: Protocols for OFDM/OFDMA/SC-FDMA based wireless networks provide adaptive inter-cell interference management without explicit spectrum or frequency planning. Base stations and mobile stations acquire information about subcarrier allocation from a handoff protocol. The mobile stations can also acquire this information using cognitive sensing. Cognitive sensing can be rewarded by the base station. Using this information, subcarriers can be allocated randomly, with blind optimization, or by joint optimization. The stations can use game theory to select among the different optimization strategies.