Method for allocating subchannels in an OFDMA mobile communication system
    1.
    发明授权
    Method for allocating subchannels in an OFDMA mobile communication system 有权
    在OFDMA移动通信系统中分配子信道的方法

    公开(公告)号:US07411924B2

    公开(公告)日:2008-08-12

    申请号:US10996699

    申请日:2004-11-24

    IPC分类号: H04Q7/24

    摘要: An adaptive modulation scheme relating to an RA problem for maximizing the transmission rates of all users for maximum transmission rates in an OFDMA system including some users requiring to use services at fixed data rates. The scheme proposes introduction of an adaptive modulation using linear programming into an existing scheme for a system including a single kind of users, thereby enabling simultaneous execution of the adaptive modulation for all users in a system including two kinds of users. Further, the invention proposes another scheme of sequentially allocating subchannels to the users when the fixed transmission rate has a sufficiently small value, in order to reduce the complexity.

    摘要翻译: 一种与RA问题有关的自适应调制方案,用于在包括一些需要以固定数据速率的业务的用户的OFDMA系统中最大化所有用户的最大传输速率的传输速率。 该方案提出了使用线性规划的自适应调制引入到包括单一用户的系统的现有方案中,从而能够在包括两种用户的系统中为所有用户同时执行自适应调制。 此外,为了降低复杂度,本发明提出了当固定传输速率具有足够小的值时向用户顺序分配子信道的另一方案。