公开(公告)号：US10219147B2

公开(公告)日：2019-02-26

申请号：US15481448

申请日：2017-04-06

Applicant: MEDIATEK INC.

Inventor： Johan Johansson ,  Chia-Chun Hsu ,  Chien-Chun Huang-Fu

IPC: H04W8/22 ,  G10L19/002 ,  G10L19/24 ,  H04W72/04 ,  H04W88/02

Abstract: Apparatus and methods are provided for enhanced codec control. In one novel aspect, a method includes receiving a codec control command by a user equipment (UE) in a wireless network, determining if the recommended codec characteristic will be applied to a codec executing on the UE, and adjusting a characteristic of the codec executing on the UE based on the recommended codec characteristic. The UE is connected with a radio access network (RAN) and the codec control command includes a recommended codec characteristic. In another novel aspect, the recommended codec characteristic is a maximum bitrate. In another embodiment, the recommended codec characteristic is a type of codec. In yet another novel aspect, the recommended codec characteristic is a radio resource allocation command. In another novel aspect, the UE determines all available codec bitrates that can be performed by the UE and communicates the bitrates before receiving the codec control command.

公开(公告)号：US10004099B2

公开(公告)日：2018-06-19

申请号：US15155082

申请日：2016-05-16

Applicant: MEDIATEK INC.

Inventor： Johan Johansson ,  Chia-Chun Hsu ,  Li-Chuan Tseng

IPC: G08C17/00 ,  H04W76/04 ,  H04W52/02

CPC classification number: H04W76/28 ,  H04W52/0225 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/164 ,  Y02D70/24

Abstract: A method of extended DRX paging includes a base station that transmits extended DRX configuration information and a User Equipment (UE) receives the extended DRX configuration from the base station. The UE determines a first number of frames that are included in a hyper-frame based at least in part on the extended DRX configuration information and selects a hyper-frame number. The hyper-frame number is based at least in part on the extended DRX configuration information. The UE maintains a hyper-frame count and the hyper-frame count is incremented after each hyper-frame. The UE then goes into sleep mode and the UE determines a wake up time before a standard DRX cycle that occurs during the selected hyper-frame. The UE may also determine a first wake up time and a second wake up time based on the selected hyper-frame number and synchronization error between a first cell and a second cell.

公开(公告)号：US20170303114A1

公开(公告)日：2017-10-19

申请号：US15481448

申请日：2017-04-06

Applicant: MEDIATEK INC.

Inventor： Johan Johansson ,  Chia-Chun Hsu ,  Chien-Chun Huang-Fu

IPC: H04W8/22 ,  G10L19/24 ,  H04W72/04 ,  G10L19/002 ,  H04W88/02

CPC classification number: H04W8/22 ,  G10L19/002 ,  G10L19/24 ,  H04W72/04 ,  H04W88/02

Abstract: Apparatus and methods are provided for enhanced codec control. In one novel aspect, a method includes receiving a codec control command by a user equipment (UE) in a wireless network, determining if the recommended codec characteristic will be applied to a codec executing on the UE, and adjusting a characteristic of the codec executing on the UE based on the recommended codec characteristic. The UE is connected with a radio access network (RAN) and the codec control command includes a recommended codec characteristic. In another novel aspect, the recommended codec characteristic is a maximum bitrate. In another embodiment, the recommended codec characteristic is a type of codec. In yet another novel aspect, the recommended codec characteristic is a radio resource allocation command. In another novel aspect, the UE determines all available codec bitrates that can be performed by the UE and communicates the bitrates before receiving the codec control command.

公开(公告)号：US20180279384A1

公开(公告)日：2018-09-27

申请号：US15928091

申请日：2018-03-22

Applicant: MEDIATEK INC.

Inventor： Chia-Chun Hsu ,  Johan Johansson

IPC: H04W74/08 ,  H04W74/00 ,  H04W52/36

CPC classification number: H04W74/0841 ,  H04W52/146 ,  H04W52/367 ,  H04W52/50 ,  H04W74/006 ,  H04W74/008 ,  H04W74/0833

Abstract: A two-phase backoff mechanism for LTE access procedure is proposed where backoff handling is applied differently in two separate phases. During the first phase, network-controlled reattempts involves adaptation to radio conditions. Reattempts due to collisions, ramping of power and other robustness parameters needed to compensate for unpredictable conditions can be handled in the first phase. During the second phase, UE-controlled reattempts continues for other conditions. UE can reattempt at a lesser rate to alleviate the worsening of the load and interference situation. As a result, backoff handling is optimized towards LTE access procedures.