The Mobility management is one of the sub-layers of layer 3, which mainly fulfills the functions concerning the mobility of the subscriber.
移动性管理（MM）是层3的一个子层，它主要完成与用户的移动性相关的一些功能。
Subscriber agrees not to sub-license, rent, lease, loan, assign or transfer any rights granted by CUHK.
订户同意不会转授、出租、租赁、借出、转让或转移任何由中大授予之权利。
Subscriber agrees not to sub-license, rent, lease, loan, assign or transfer any rights granted by CUHK.
订户同意不会转授、出租、租赁、借出、转让或转移任何由中大授予之权利。
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