公开(公告)号：US20150208285A1

公开(公告)日：2015-07-23

申请号：US14597452

申请日：2015-01-15

Applicant: MediaTek Inc.

Inventor： Shih-Chieh LIAO ,  Chih-Kuang WU ,  Chi-Chen LEE

IPC: H04W36/00

CPC classification number: H04W36/0022 ,  H04W36/0079

Abstract: The method and apparatus for CSFB are provided. The method for processing a Circuit Switched Fallback (CSFB) procedure in a user equipment (UE) includes the steps of receiving the switching command when the CSFB procedure is triggered to establish a CS call, and searching for a 2G/3G cell, when the UE fails to fall back to a target cell indicated by the switching command. In addition, the method for CSFB further includes the step of initiating a timer when the UE fails to fall back to the target cell indicated by the switching command, and searching for the 2G/3G cell until the timer is expired.

Abstract translation: 提供了CSFB的方法和装置。 在用户设备（UE）中处理电路交换回退（CSFB）过程的方法包括以下步骤：当CSFB过程被触发以建立CS呼叫时接收切换命令，并且当搜索2G / 3G小区时 UE不能倒退到由切换命令指示的目标小区。 此外，CSFB的方法进一步包括当UE不能倒退到由切换命令指示的目标小区时启动定时器的步骤，并且搜索2G / 3G小区直到定时器到期为止。

公开(公告)号：US20160212782A1

公开(公告)日：2016-07-21

申请号：US14991339

申请日：2016-01-08

Applicant: MediaTek Inc.

Inventor： Cheng-Hsiao KO ,  Ming-Wan HSU ,  Chih-Kuang WU

IPC: H04W76/02 ,  H04W76/06 ,  H04W68/00

CPC classification number: H04W68/005 ,  H04W60/04 ,  H04W76/10 ,  H04W76/38

Abstract: A method for efficient wireless communications includes transmitting a tracking area update (TAU) request message by a communications apparatus to a peer device to initiate a TAU procedure; receiving a paging message by the communications apparatus from the peer device after transmitting the TAU request message; and in response to receipt of the paging message, retransmitting the TAU request message by the communications apparatus to the peer device to reinitiate the TAU procedure immediately or transmitting a request message by the communications apparatus to the peer device immediately, without waiting a predetermined time period.

Abstract translation: 一种用于有效无线通信的方法包括：通过通信装置向对等设备发送跟踪区域更新（TAU）请求消息以发起TAU过程; 在发送所述TAU请求消息之后，从所述对方设备接收所述通信装置的寻呼消息; 并且响应于接收到寻呼消息，由通信装置向对等设备发送TAU请求消息，以立即重新启动TAU过程或者由通信装置向对等设备发送请求消息，而不等待预定时间段 。