-
公开(公告)号:US20180227824A1
公开(公告)日:2018-08-09
申请号:US15949474
申请日:2018-04-10
Applicant: MEDIATEK INC.
Inventor: Yih-Shen Chen , Chia-Chun Hsu , Per Johan Mikael Johansson
CPC classification number: H04W36/32 , H04W36/0083 , H04W36/0094 , H04W36/04 , H04W36/245
Abstract: Methods for enhanced heterogeneous network mobility are proposed. In a first novel aspect, the cell size of a target cell is considered when determining the TTT value. In one embodiment, pico-specific Time-to-Trigger (TTT) value is configured. When the target cell to be measured is a picocell, pico-specific TTT value is applied. In a second novel aspect, precise mobility state estimation (MSE) is achieved by considering the effect of cell size. In one embodiment, when counting cell changes, a cell change to/from a small cell would be counted to lesser extent than a cell change between large cells. UE uses effective parameters for measurement evaluation, by applying better speed state estimation with speed scaling and by applying parameter differentiation that can be dependent on cell size.
-
公开(公告)号:US10045254B2
公开(公告)日:2018-08-07
申请号:US14989101
申请日:2016-01-06
Applicant: MediaTek Inc.
Inventor: Yu-Ping Yu , Chia-Chun Hsu
IPC: H04W28/06
Abstract: A wireless communication method and device are provided. The wireless communication method includes the steps of determining whether the length of an RLC SDU or RLC SDU segment is greater than a threshold; determining the type of length indicator which is allocated by a network when the length of the RLC SDU or RLC SDU segment is greater than the threshold; and determining whether to force to map the RLC SDU or RLC SDU segment to the end of an RLC PDU according to the type of the length indicator.
-
公开(公告)号:US10034202B2
公开(公告)日:2018-07-24
申请号:US15154041
申请日:2016-05-13
Applicant: MEDIATEK INC.
Inventor: Chia-Chun Hsu , Pavan Santhana Krishna Nuggehalli , Chie-Ming Chou
IPC: H04W28/18 , H04W28/24 , H04W24/10 , H04W88/02 , H04W8/24 , H04W28/12 , H04W28/02 , H04W8/18 , H04W8/20 , H04W48/14 , H04W36/22 , H04W88/06
Abstract: Apparatus and methods are provided for finer control for WLAN association. In one novel aspect, an enhanced NCWIK capability negotiation, an UE assistance information exchange, and an enhanced steering command are performed. In one embodiment, the enhanced NCIWK capacity negotiation includes additional UE information for fine selection. In another embodiment, the UE assistance information is sent to the eNB in addition to the measurement report. The UE assistance information is configured by the eNB. In yet another embodiment, the enhanced traffic steering command includes information of a target AP and one or more target channels. In one embodiment, the enhanced traffic steering command further includes channel direction information. In another novel aspect, the UE selects different UL and DL channels based on the received enhanced traffic steering command. In one embodiment, the UL and DL channels for the UE are different channels from the same AP or from different RATs.
-
公开(公告)号:US10028109B2
公开(公告)日:2018-07-17
申请号:US15172258
申请日:2016-06-03
Applicant: MEDIATEK INC.
Inventor: Chia-Hao Yu , Chia-Chun Hsu , Yih-Shen Chen , Chien-Chun Huang-Fu , Yu-Syuan Jheng , Chia-Hung Tsai
IPC: H04B7/00 , H04W4/08 , H04W4/10 , H04W76/40 , H04W36/32 , H04W4/06 , H04W72/00 , H04W36/08 , H04W76/00 , H04W74/00 , H04L5/00 , H04L12/18 , H04W24/08 , H04W36/00 , H04W36/30 , H04W72/12
CPC classification number: H04W4/08 , H04L5/0037 , H04L12/185 , H04L12/1886 , H04W4/06 , H04W4/10 , H04W24/08 , H04W36/0007 , H04W36/0083 , H04W36/08 , H04W36/30 , H04W36/32 , H04W72/00 , H04W72/005 , H04W72/121 , H04W74/006 , H04W76/40
Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. In one embodiment, the access information comprises mapping information between the TMGI and the communication group ID.
-
公开(公告)号:US20180132263A1
公开(公告)日:2018-05-10
申请号:US15801475
申请日:2017-11-02
Applicant: MediaTek Inc.
Inventor: Pavan Santhana Krishna Nuggehalli , Chia-Chun Hsu , Ming-Yuan Cheng
CPC classification number: H04W72/1242 , H04L1/1664 , H04L1/1854 , H04L1/1864 , H04W72/10 , H04W72/1247 , H04W76/27
Abstract: Various solutions for data transmission enhancements with respect to user equipment (UE) and network apparatus in mobile communications are described. As a transmitter, a UE may determine whether specific information is comprised in a protocol data unit (PDU). The UE may mark the PDU in an event that the specific information is comprised in the PDU. The UE may further prioritize the marked PDU and deliver the marked PDU to a next protocol layer. As a receiver, a UE may receive a marked PDU comprising the specific information. The UE may deliver the marked PDU to a higher protocol layer out-of-order.
-
公开(公告)号:US20180097918A1
公开(公告)日:2018-04-05
申请号:US15719551
申请日:2017-09-29
Applicant: MEDIATEK INC.
Inventor: Pavan Santhana Krishna Nuggehalli , Chia-Chun Hsu , Ming-Yuan Cheng
IPC: H04L29/08 , H04W28/06 , H04L5/00 , H04L29/06 , H04L12/835
CPC classification number: H04L69/324 , H04L5/0046 , H04L5/0091 , H04L47/30 , H04L69/16 , H04L69/166 , H04L69/22 , H04L69/32 , H04W28/065
Abstract: Methods of segmentation and concatenation for new radio user plane are proposed. For high speed data traffic, all PDCP PDUs are segmented into fixed-length segments at RLC layer. The MAC layer can then concatenate these segments based on real time uplink grants. Under this mechanism, segmentation related header fields can be pre-computed since they are not dependent on the uplink grant process. For low data rate with small packet size traffic, a solution of PDCP layer concatenation is proposed to reduce protocol overhead. Multiple PDCP SDUs are concatenated into a single PDCP PDU. The level of PDCP concatenation is configured by the base station or implemented by the UE.
-
公开(公告)号:US20180049081A1
公开(公告)日:2018-02-15
申请号:US15656366
申请日:2017-07-21
Applicant: MEDIATEK INC.
Inventor: Li-Chuang TSENG , Chia-Chun Hsu , Per Johan Mikael Johansson
IPC: H04W36/00
CPC classification number: H04W36/0088 , H04W36/0058 , H04W36/0094
Abstract: Aspects of the disclosure provide a method that includes receiving a measurement configuration message indicating a predetermined number. A measurement event is defined based on the predetermined number of signal beams from a serving base station and the predetermined number of signal beams from a neighboring base station. The method also includes identifying a first number of best signal beams from the serving base station and a second number of best signal beams from the neighboring base station, where the first number and the second number are equal to or less than the predetermined number. The method further includes determining whether the measurement event occurs based on the first number of best signal beams from the serving base station and the second number of best signal beams from the neighboring base station, and sending a measurement report when the measurement event occurs.
-
公开(公告)号:US20180049022A1
公开(公告)日:2018-02-15
申请号:US15674519
申请日:2017-08-11
Applicant: MEDIATEK INC.
Inventor: Per Johan Mikael Johansson , Chia-Chun Hsu , Guan-Yu Lin
Abstract: A method of system information (SI) acquisition with reduced signaling overhead is proposed. To reduce SI broadcast overhead, the quantity of periodic SI broadcast and the frequency of on-demand SI acquisition need to be reduced. To reduce the frequency of on-demand SI acquisition, rather than always re-acquire SI when serving cell changes, UE is enabled to reuse stored SI information elements across different cells. More specifically, a novel concept of SI ID is introduced to be associated with an area that applies the same SI configuration. UE can reuse stored SI information elements if the stored SI information elements are valid based on the SI ID and validity check.
-
公开(公告)号:US09854496B2
公开(公告)日:2017-12-26
申请号:US15240083
申请日:2016-08-18
Applicant: MEDIATEK INC.
Inventor: Per Johan Mikael Johansson , Li-Chuan Tseng , Chia-Chun Hsu
Abstract: A novel and efficient connected mode cell reselection procedure is proposed to improve the mobility performance for user equipments (UEs) configured with extended connected mode Discontinuous Reception (DRX) cycle in LTE systems. A UE-centric mobility mechanism with which a UE performs cell reselection in RRC connected mode is proposed. The UE is allowed to select a target cell without handover signaling in the source cell and when needed to initiate signaling with the target cell, for which signal quality is much better. In this way, handover failures due to failed signaling in the source cell can be avoided. More specifically, the proposed mobility mechanism reduces signaling overhead and is inherently robust towards different DRX cycle settings, i.e., longer DRX cycles do not cause more failures, or more overhead, or more battery consumption.
-
公开(公告)号:US09781652B2
公开(公告)日:2017-10-03
申请号:US15015396
申请日:2016-02-04
Applicant: MEDIATEK INC.
Inventor: Chia-Chun Hsu , Pavan Santhana Krishna Nuggehalli , Chie-Ming Chou
IPC: H04W4/00 , H04W40/02 , H04L12/46 , H04L12/741 , H04L12/721 , H04W76/02
CPC classification number: H04W40/02 , H04L12/4633 , H04L12/4641 , H04L45/66 , H04L45/74 , H04W76/12 , H04W76/16
Abstract: Apparatus and methods are provided for LWA PDU routing. In one novel aspect, LTE PDU packets are routed through a WLAN AP to a UE by encapsulation of the data packets. An adaption layer encapsulate the whole packet as an Ethernet frame by appending the Ethernet MAC header to the payload. In other embodiments, the adaption layer encapsulates LTE PDU as GRE packet, configures VLAN for WLAN AP. In another novel aspect, the LTE PDU is identified by at least one of methods comprising the EtherType value, the source address, the GRE header, and the GTP header. In another embodiment, the default path is always used for LWA routing. In yet another novel aspect, the LTE PDU is forwarded by the MAC address, by the GRE tunnel configuration, or by the GTP tunnel configuration.
-
-
-
-
-
-
-
-
-