针对广播和多播服务的信令信息的传输

Transmission of signaling information for broadcast and multicast services

Abstract

Techniques for transmitting signaling information for broadcast and multicast services are described. A base station transmits signaling information for each service in accordance with a schedule thatincludes a repetition period and a modification period. The signaling information is sent in each repetition period to allow wireless devices to quickly obtain this information. Changes to the critical signaling information are permitted at the start of each modification period, which is an integer multiple of the repetition period. Whenever the critical signaling information for a given serviceis changed in a given modification period, a notification indicator for the service is set in an entire preceding modification period to inform the wireless devices of the impending change. The wireless devices can detect the notification indicator being set in the preceding modification period and can retrieve the updated critical signaling information in the following modification period.
描述了用于发送针对广播和多播服务的信令信息的技术。基站根据包括重复周期和修改周期的调度表发送针对每个服务的信令信息。在每个重复周期内发送信令信息,以使得无线设备能够快速获得该信息。在每个修改周期的起始处允许对于关键信令信息的改变,所述修改周期是重复周期的整数倍。无论何时在给定的修改周期内改变了针对给定服务的关键信令信息,就在之前的整个修改周期内对针对该服务的通知指示进行设置,以告知无线设备即将发生的改变。无线设备可以对在之前的修改周期内被设置的通知指示进行检测,并且可以在随后的修改周期内取回已更新的关键信令信息。

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