公开(公告)号：US20170289025A1

公开(公告)日：2017-10-05

申请号：US15473887

申请日：2017-03-30

Applicant: MEDIATEK INC.

Inventor： Ming-Yuan Cheng ,  Chia-Chun Hsu ,  Pavan Santhana Krishna Nuggehalli ,  Per Johan Mikael Johansson

IPC: H04L12/725 ,  H04L29/12 ,  H04L29/06 ,  H04L1/00

CPC classification number: H04L45/302 ,  H04L1/0018 ,  H04L47/2408 ,  H04L47/2416 ,  H04L47/2441 ,  H04L47/31 ,  H04L47/34 ,  H04L61/2007 ,  H04L69/22 ,  H04L69/324 ,  H04W28/0263 ,  H04W28/0268 ,  H04W28/0273 ,  H04W84/042

Abstract: A tagging mechanism supporting different QoS categories for IP/Port services in a cellular radio network is proposed. Tags are used to differentiate different types of services and corresponding QoS requirements. At the sender side, the sender of the IP packets is able to distinguish different types of services by tagging one or multiple bits for finer QoS control. For downlink IP traffic, the tagging function can be done at the base station. For uplink IP traffic, the tagging function can be done at the UE. At the receiver side, the receiver delivers the IP packets using out-of-sequence delivery for delay sensitive packets. With tagging and out-of-sequence delivery, the delay sensitive packets can reduce CN latency and transmission latency.

公开(公告)号：US20170238334A1

公开(公告)日：2017-08-17

申请号：US15432022

申请日：2017-02-14

Applicant: MEDIATEK INC.

Inventor： Weidong Yang ,  Bo-Si Chen ,  Chien-Chang Li ,  Yih-Shen Chen ,  Pavan Santhana Krishna Nuggehalli

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W74/0816 ,  H04W74/006 ,  H04W74/0808

Abstract: A method of dynamic spectrum sharing mechanism called listen-before-talk (LBT) is proposed for uplink transmission in Licensed Assisted Access (LAA). A maximum channel occupancy time (MCOT) including downlink (DL) transmission from one eNB and uplink (UL) transmission to the same eNB is introduced. A transmission sequence is defined as a number of subframes including possible partial subframes for DL and/or UL within a MCOT. The transmission in the first subframe among the transmission sequence is conducted after a Category 4 LBT. The transmission sequence within the MCOT can be initiated by either a DL transmission or an UL transmission. After the first subframe in a transmission sequence, LBT for another transmission is a fast DL LBT and/or fast UL LBT. Further, a Category 4 LBT can be converted to a short LBT (e.g., one shot CCA) for more efficient channel access.

公开(公告)号：US09713046B2

公开(公告)日：2017-07-18

申请号：US15008166

申请日：2016-01-27

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Yu-Syuan Jheng ,  Pavan Santhana Krishna Nuggehalli

IPC: H04W36/00 ,  H04W76/02 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/08 ,  H04W36/16 ,  H04W28/12 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/085 ,  H04W28/12 ,  H04W36/00 ,  H04W36/14 ,  H04W36/165 ,  H04W36/22 ,  H04W76/16 ,  H04W84/12 ,  H04W88/06

Abstract: Methods for LTE-WLAN interworking control and management are proposed. In one novel aspect, a mobile termination (MT) can use an AT command to report radio access network (RAN) assistance parameters of the current serving cell. A terminal equipment (TE) can use the AT command to query the specific RAN assistance parameters and the threshold value provided by the network for making LTE-WLAN interworking decisions. If reporting is enabled by TE, then an unsolicited result code (URC) is sent from MT to TE whenever changes in the current RAN assistance parameters occur.