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公开(公告)号：US06763009B1
公开(公告)日：2004-07-13
申请号：US09454039
申请日：1999-12-03
IPC分类号： H04Q720
CPC分类号： H04J13/00 , H04J13/16 , H04W72/0446 , Y02D70/00
摘要： A base station of a code division, multiple access (CDMA) telecommunications system employs scheduling of data transmission signals to corresponding user transceivers in down-link channels of a data network. One or more user transceivers may be in communication with a base station within a cell, and each user may have a minimum data rate requirement. In accordance with the present invention, the scheduling of user data transmission follows the constraints that 1) each base station transmits to user transceivers one at a time, and 2) the base station uses full available power for the down-link channel when transmitting (for data networks only). Given a data network of users, the method of scheduling and data rates may be modeled in accordance with a linear programming problem optimized according to a predefined criterion. In addition, the present method may be employed in a hybrid CDMA/time-share system to reduce power of data channels in communication with user transceivers near the base station. A continuum of rates may be achieved based on the system signal to interference ratio (S/I). The error rate requirement of a user's down-link channel may be met provided the S/I of the channel is greater than a predetermined threshold value.
摘要翻译： 码分多址（CDMA）电信系统的基站采用将数据传输信号调度到数据网络的下行链路信道中的相应用户收发信机。 一个或多个用户收发器可以与小区内的基站通信，并且每个用户可以具有最小数据速率要求。 根据本发明，用户数据传输的调度遵循以下约束：1）每个基站一次一个地发送给用户收发机，以及2）当发送时基站使用下行链路信道的全部可用功率（ 仅用于数据网络）。 给定用户的数据网络，调度和数据速率的方法可以根据根据预定标准优化的线性规划问题来建模。 此外，本方法可以用在混合CDMA /时分共享系统中以减少与基站附近的用户收发机通信的数据信道的功率。 基于系统信号与干扰比（S / I）可以实现连续的速率。 只要信道的S / I大于预定阈值，就可以满足用户下行链路信道的错误率要求。
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公开(公告)号：US06603753B1
公开(公告)日：2003-08-05
申请号：US09454040
申请日：1999-12-03
IPC分类号： H04B7216
CPC分类号： H04J13/00 , H04J13/16 , H04W72/0446 , H04W72/082 , Y02D70/00
摘要： A base station of a code division, multiple access (CDMA) telecommunications system employs scheduling of data transmission signals to corresponding user transceivers in down-link channels of a data network. One or more user transceivers may be in communication with a base station within a cell, and each user may have a minimum data rate requirement. In accordance with the present invention, the scheduling of user data transmission follows the constraints that 1) each base station transmits to user transceivers one at a time, and 2) the base station uses full available power for the down-link channel when transmitting (for data networks only). Given a data network of users, the method of scheduling and data rates may be modeled in accordance with a linear programming problem optimized according to a predefined criterion. In addition, the present method may be employed in a hybrid CDMA/time-share system to reduce power of data channels in communication with user transceivers near the base station. A continuum of rates may be achieved based on the system signal to interference ratio (S/I). The error rate requirement of a user's down-link channel may be met provided the S/I of the channel is greater than a predetermined threshold value.
摘要翻译： 码分多址（CDMA）电信系统的基站采用将数据传输信号调度到数据网络的下行链路信道中的相应用户收发信机。 一个或多个用户收发器可以与小区内的基站通信，并且每个用户可以具有最小数据速率要求。 根据本发明，用户数据传输的调度遵循以下约束：1）每个基站一次一个地发送给用户收发机，以及2）当发送时基站使用下行链路信道的全部可用功率（ 仅用于数据网络）。 给定用户的数据网络，调度和数据速率的方法可以根据根据预定标准优化的线性规划问题来建模。 此外，本方法可以用在混合CDMA /时分共享系统中以减少与基站附近的用户收发机通信的数据信道的功率。 基于系统信号与干扰比（S / I）可以实现连续的速率。 只要信道的S / I大于预定阈值，就可以满足用户下行链路信道的错误率要求。
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