WCDMA的软搬迁软割接

Soft Site Moving and Cutover in WCDMA Network

传统的无线网络站点搬迁,需要中断现网服务,而且只能串行逐片割接,组织工作复杂,资源投入巨大,因此亟需探讨一种低风险、快速建网的搬迁割接方案。中兴通讯股份有限公司的ZTE BBU+RRU基站由于采用分布式结构,结合宽带码分多址(WCDMA)同频组网特性,可以方便地实现软搬迁软割接。该方案采用叠加建网然后一次性割接的方法,不影响现网运行,并可以及时回退,能极大地简化搬迁割接工作,降低网络风险。

Traditionally, when a radio network site is moved, it is necessary to interrupt existing services and perform a step-by-step serial cutover, which involves complex arrangements and huge resource investments. Therefore, there is an urgent need to discuss a low-risk and fast solution to site＇ moving and cutover. ZTE Base Band Unit and Remote Radio Unit （BBU＋RRU） Base Station adopts distributed structure and combines full frequency reuse of the WCDMA system to implement soft site moving and cutover conveniently. The solution is to build an overlay network and make a one-time cutover without any impact on the running of the existing network. Moreover, it supports timely fallback, and can considerably simplify the site moving and cutover operation and lower the network risk.