Channel quality in wireless communications
    1.
    发明授权
    Channel quality in wireless communications 失效
    无线通信中的信道质量

    公开(公告)号:US06292664B1

    公开(公告)日:2001-09-18

    申请号:US09019897

    申请日:1998-02-06

    IPC分类号: H04Q720

    摘要: A system and method in a wireless communications environment maximizes voice quality in low capacity situations. A Mobile services Switching Centre (MSC) that is associated with a base station of a cell is capable of assigning speech calls of mobile terminals to either a full-rate (FR) or a half-rate (HR) channel. The FR channels provide better transmitted voice quality but consume twice the bandwidth (two time slots versus only one for HR channels). When occupied cell capacity is low, an MSC assigns connections to FR channels. After occupied cell capacity reaches a predetermined threshold value, the MSC assigns connections to HR channels whenever possible. Also, handover procedures can reclaim available capacity by switching a connection from a FR to a HR channel. The superior voice quality of the FR channels are therefore provided to mobile terminal users more often.

    摘要翻译: 无线通信环境中的系统和方法在低容量情况下最大化语音质量。 与小区的基站相关联的移动业务交换中心(MSC)能够将移动终端的语音呼叫分配给全速率(FR)或半速率(HR)信道。 FR频道提供更好的传输语音质量,但消耗两倍带宽(两个时隙,而仅一个用于人力资源通道)。 当占用小区容量低时,MSC分配到FR信道的连接。 在占用小区容量达到预定阈值之后,MSC尽可能地向HR信道分配连接。 此外,切换过程可以通过将来自FR的连接切换到HR信道来回收可用容量。 因此,更频繁地向移动终端用户提供FR信道的优越语音质量。