求翻译：在UWB技术领域，有着广泛的研究内容，除了UWB波形、发射机、检测器、天线、 信道特点、UWB系统的多址等物理层实现技术外，空中接口的灵活性，开放的网络还要求重新定义高层而不仅限于物理层。这方面包括UWB资源和移动管理、安全性、在保证QoS下UWB与固定网的互通、UWB与其它无线技术的兼容性等问题。为充分利用移动通信的潜力，还需要研究在UWB通信中移动接入技术的可行性、要求和性能以及相应的资源管理技术。是什么意思？

Uwb technology has a wide range of research, In addition to the the uwb waveform, transmitter, detector, antenna, channel characteristics, uwb system, multiple access physical layer technology, the flexibility of the air interface, the open network also requires re- The definition of high-level and

In UWB technology field, there are a wide range of research, in addition, transmitter, UWB wave detector, antenna, the channel characteristics, UWB system, such as multi-site physical layer technology, air interface, the flexibility of network is also open to define high-level requirements and are n

UWB technology, have a wide range of research, in addition to UWB waveforms, transmitters, detectors, antenna, channel characteristics, UWB systems with multiple physical layer technologies, such as outside, air interface