技术在快速发展进步。因此，我们建立了易于使用的术语汇编，帮助您更好地了解影响您业务的术语、技术和趋势。
Physical Cell Id is the identifier of a cell in the physical layer of the LTE network, which is used for separation of different transmitters. Due to the construction of PCIs, the number of PCIs are limited to 504.
