公开(公告)号：US10004035B2

公开(公告)日：2018-06-19

申请号：US14512479

申请日：2014-10-13

Applicant: MEDIATEK INC.

Inventor： Chia-Hsiang Hsu ,  Ching-Hwa Yu ,  Li-Chun Ko

IPC: G01R31/08 ,  H04L5/14 ,  H04B7/00 ,  H04J3/00 ,  H04W52/02 ,  H04L5/00 ,  H04W16/14 ,  H04W72/12 ,  H04W74/08

CPC classification number: H04W52/0209 ,  H04L5/0078 ,  H04W16/14 ,  H04W72/12 ,  H04W74/0816 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

Abstract: A method of managing data transmission for a receiving terminal of a first wireless system wherein the first wireless system coexists with at least one second wireless system includes receiving a transmission schedule of each of the at least one second wireless system; determining a usable time period for the first wireless system according to the transmission schedule of each of the at least one second wireless system; and sending a clear to send (CTS) to self signal or a power saving signal to indicate an interruption of the usable time period according to a length of the usable time period.

公开(公告)号：US09894708B2

公开(公告)日：2018-02-13

申请号：US15133355

申请日：2016-04-20

Applicant: MEDIATEK INC.

Inventor： Li-Chun Ko ,  Chia-Hsiang Hsu ,  Ho-Chun Chiang ,  Kun-Hsing Chou ,  Shu-Hsun Wu ,  Kai-Hsiang Hsieh

IPC: H04W80/04 ,  H04W84/12 ,  H04W76/04 ,  H04W52/02 ,  H04W72/12 ,  H04W76/02

CPC classification number: H04W76/28 ,  H04W52/0216 ,  H04W72/1215 ,  H04W76/16 ,  H04W76/20 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/25

Abstract: For LTE cellular data and Wi-Fi P2P technology coexistence scenario, a user equipment can generate in-device coexistence (IDC) indication message to the base station for DRX-based IDC solution. LTE data scheduling is described by a set of DRX parameters, while Wi-Fi P2P data scheduling is described by Opportunistic Power Saving (OppoPS) and Notification of Absence (NoA) parameters. When generating the IDC indication message for Wi-Fi P2P group client (GC), the DRX parameters must be selected carefully to maximize efficiency. Even though Wi-Fi shares less time, with proper time alignment, its coexistence performance could be better. For Wi-Fi P2P group owner (GO) with IDC TDM scheduling constraints, OppoPS and NoA should be aligned with DRX parameters to achieve best performance.

公开(公告)号：US09565516B2

公开(公告)日：2017-02-07

申请号：US14848108

申请日：2015-09-08

Applicant: MEDIATEK INC.

Inventor： James June-Ming Wang ,  Kai-Chun Chou ,  Li-Chun Ko ,  Ching-Hwa Yu ,  YungPing Hsu ,  Chih-Shi Yee

IPC: H04W4/00 ,  H04W28/22 ,  H04W28/02 ,  H04L12/825

CPC classification number: H04W4/008 ,  H04L47/26 ,  H04W4/80 ,  H04W28/0236 ,  H04W28/22

Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A novel rate indication (RI) field is incorporated in a data packet to enable auto detection of rate adaptation at the receiver side. The data packet comprises a preamble, a first packet portion including the RI field, and a second packet portion including the PDU. The first packet portion is encoded with a first rate while the second packet portion is encoded with a second rate indicated by the RI field. The transmitting device raise/lower the encoding rate when the link quality is good/poor. The receiving device can provide recommended rate or link quality feedback information via an LMP message to help the transmitting device making rate adaptation decision. The transmitter can unilaterally decide the data rate for the second packet portion without receiver recommendation.

Abstract translation: 提供了一种用于蓝牙远程无线网络的快速链路适配方法。 新的速率指示（RI）字段被并入数据分组中，以便能够在接收机侧自动检测速率自适应。 数据分组包括前导码，包括RI字段的第一分组部分和包括该PDU的第二分组部分。 第一分组部分以第一速率编码，而第二分组部分由RI字段指示的第二速率编码。 当链路质量好/差时，发送设备提高/降低编码率。 接收设备可以通过LMP消息提供推荐的速率或链路质量反馈信息，以帮助发送设备进行速率适配决策。 发射机可以在没有接收机推荐的情况下单方面地决定第二分组部分的数据速率。

公开(公告)号：US09538531B2

公开(公告)日：2017-01-03

申请号：US14567233

申请日：2014-12-11

Applicant: MediaTek Inc

Inventor： Li-Chun Ko ,  Hong-Kai Hsu ,  I-Kang Fu ,  Chi-Chen Lee

IPC: H04W72/04 ,  H04W72/12 ,  H04W76/02 ,  H04W88/06

CPC classification number: H04W72/0446 ,  H04W72/1215 ,  H04W76/14 ,  H04W88/06

Abstract: A wireless communication device is provided with a first radio module and a second radio module inside. The first radio module performs wireless transceiving according to a plurality of first traffic patterns which each indicates allocations of a plurality of first slots for a plurality of forthcoming transmitting or receiving operations, respectively. The second radio module determines an indicator indicating at least one of a plurality of second traffic patterns which each indicates allocations of a plurality of second slots for a plurality of forthcoming transmitting or receiving operations, respectively. Particularly, one or more allocations of the second slots are selectively determined according to the first traffic patterns. Also, the second radio module transmits the indicator to a peer communication device, so that the peer communication device performs transmitting or receiving operations according to the indicator.

Abstract translation: 无线通信装置具有第一无线电模块和第二无线电模块。 第一无线电模块根据多个第一业务模式执行无线收发，每个第一业务模式分别指示用于多个即将发送或接收操作的多个第一时隙的分配。 第二无线电模块确定指示多个第二业务模式中的至少一个的指示符，其分别表示多个即将发送或接收操作的多个第二时隙的分配。 特别地，根据第一业务模式选择性地确定第二时隙的一个或多个分配。 此外，第二无线电模块将指示符发送到对等通信设备，使得对等通信设备根据指示符执行​​发送或接收操作。

公开(公告)号：US09232443B2

公开(公告)日：2016-01-05

申请号：US14200398

申请日：2014-03-07

Applicant: MEDIATEK INC.

Inventor： I-Kang Fu ,  Li-Chun Ko ,  Chi-Chen Lee ,  Huanchun Ye ,  Hong-Kai Hsu ,  William Plumb

IPC: H04B1/00 ,  H04W36/00 ,  H04B1/403

CPC classification number: H04W36/0005 ,  H04B1/406 ,  H04B2215/068

Abstract: A wireless device having a central control entity that coordinates multiple radio transceivers co-located within the same device platform to mitigate coexistence interference. The wireless device comprises an LTE transceiver, a WiFi transceiver, a BT transceiver, or a GNSS receiver. In one embodiment, the central control entity receives radio signal information from the transceivers and determines control information. The control information is used to trigger FDM solution such that the transceivers operate in designated frequency channels to mitigate co-existence interference. In another embodiment, the central control entity receives traffic and scheduling information from the transceivers and determines control information. The control information is used to trigger TDM solution such that the transceivers are scheduled for transmitting or receiving radio signals over specific time duration to mitigate co-existence interference. In yet another embodiment, power control solution is used to mitigate coexistence interference.

Abstract translation: 一种具有中央控制实体的无线设备，其协调位于同一设备平台内的多个无线电收发器，以减轻共存干扰。 无线设备包括LTE收发器，WiFi收发器，BT收发器或GNSS接收器。 在一个实施例中，中央控制实体从收发器接收无线电信号信息并确定控制信息。 控制信息用于触发FDM解决方案，使得收发器在指定的频道中工作，以减轻共存干扰。 在另一个实施例中，中央控制实体从收发器接收业务和调度信息并确定控制信息。 控制信息用于触发TDM解决方案，使得收发器被调度用于在特定持续时间内发射或接收无线电信号以减轻共存干扰。 在另一个实施例中，功率控制解决方案用于减轻共存干扰。

公开(公告)号：US20140064212A1

公开(公告)日：2014-03-06

申请号：US14017546

申请日：2013-09-04

Applicant: MEDIATEK, INC.

Inventor： Li-Chun Ko ,  Huanchun Ye ,  Shuo-Jen Hsu ,  I-Kang Fu

IPC: H04W72/12

CPC classification number: H04W72/1215 ,  H04L1/0083 ,  H04W4/80 ,  H04W28/06 ,  H04W84/18 ,  H04W88/06

Abstract: Methods for preventing coexistence interference between a Bluetooth Low Energy (BLE) radio and a collocated LTE radio are provided. In a first solution, the BLE radio adds padding bytes to BLE packets such that the total packet length falls in a specific range to prevent coexistence interference. In a second solution, the BLE radio limits the total BLE packet length to a predefined length to prevent coexistence interference. In a third solution, the data rate for transmitting the BLE packets is higher than a predefined rate to prevent coexistence interference. In a fourth solution, the BLE radio dynamically adjusts the time inter-frame-spacing (T_IFS) value to prevent coexistence interference with the collocated LTE radio.

Abstract translation: 提供了用于防止蓝牙低功耗（BLE）无线电与并置的LTE无线电之间共存干扰的方法。 在第一种解决方案中，BLE无线电将BLE分组的填充字节添加到总数据包长度落在一个特定的范围内以防止共存干扰。 在第二个解决方案中，BLE无线电将总BLE数据包长度限制为预定长度，以防止共存干扰。 在第三种解决方案中，用于发送BLE分组的数据速率高于预定速率以防止共存干扰。 在第四种解决方案中，BLE无线电动态地调整时间间隔间隔（T_IFS）值，以防止与并置的LTE无线电共存干扰。

公开(公告)号：US11108431B2

公开(公告)日：2021-08-31

申请号：US16735714

申请日：2020-01-07

Applicant: MEDIATEK INC.

Inventor： Yu-Hsien Chang ,  Ching-Chia Cheng ,  Shuo-Jen Hsu ,  Ying-Che Hung ,  Li-Chun Ko

IPC: H04B1/713 ,  H04B7/06 ,  H04L5/14 ,  H04W84/20

Abstract: A wireless communication apparatus includes a channel estimation circuit, a beamforming control circuit, and a transmit (TX) circuit. The channel estimation circuit estimates a channel between the wireless communication apparatus and another wireless communication apparatus during at least one first time slot. The beamforming control circuit determines beamforming coefficients according to the estimated channel. The TX circuit applies the beamforming coefficients to transmission of an output data during at least one second time slot later than the at least one first time slot. During the at least one second time slot, the output data is transmitted to another wireless communication apparatus via multiple antennae. The wireless communication apparatus performs communications according to a normal frequency hopping sequence in compliance with a communication specification.

公开(公告)号：US20190246300A1

公开(公告)日：2019-08-08

申请号：US16261451

申请日：2019-01-29

Applicant: MEDIATEK INC.

Inventor： Li-Chun Ko

IPC: H04W24/08 ,  H04B17/318

CPC classification number: H04W24/08 ,  H04B17/318

Abstract: A communication link checking method, applied to check a communication link of a first electronic device, which comprises: (a) receiving a report message, wherein the report message comprises received strength information indicating a received signal strength of a request message received by a second electronic device and comprises wanted strength information provided by the second electronic device; and (b) determining a quality of the communication link according to the received strength information and the wanted strength information.

公开(公告)号：US10091793B2

公开(公告)日：2018-10-02

申请号：US15016431

申请日：2016-02-05

Applicant: MEDIATEK INC.

Inventor： Li-Chun Ko ,  Yih-Shen Chen ,  Yu-Ting Chen ,  Chung-Wei Wang ,  Yi-Chien Wang

IPC: H04W72/08 ,  H04W76/28 ,  H04L5/00 ,  H04L5/22 ,  H04W76/04 ,  H04W16/14 ,  H04W72/04 ,  H04W88/06

Abstract: A UE controls in-device coexistence (IDC) indication message generation to mitigate potential throughput impact on UE to maintain UE performance as much as possible. Under the proposed method, FDM-based solution is always preferred by the UE. Based on the IDC indication message generated by the UE, a network applies an IDC interference mitigation solution that prioritizes FDM-based solution. Specifically, the UE first sends an IDC message requesting FDM-based solution. In case the serving eNB does not respond, the UE sends a new IDC message by alternating IDC option. Even if a TDM-based solution has been received, the UE may continue requesting FDM-based solution to gain UE performance.

公开(公告)号：US09967897B2

公开(公告)日：2018-05-08

申请号：US14255120

申请日：2014-04-17

Applicant: MediaTek Inc.

Inventor： Li-Chun Ko ,  Hong-Kai Hsu ,  I-Lin Hsieh ,  Jwo-An Lin ,  I-Kang Fu ,  Huanchun Ye

IPC: H04Q7/10 ,  H04W72/12 ,  H04W84/12 ,  H04W88/06 ,  H04W28/04 ,  H04M1/60 ,  H04W74/00 ,  H04W84/18 ,  H04W88/04

CPC classification number: H04W72/1215 ,  H04M1/6066 ,  H04W28/04 ,  H04W74/004 ,  H04W74/006 ,  H04W74/085 ,  H04W84/12 ,  H04W84/18 ,  H04W88/04 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/23

Abstract: The invention provides a mobile communication device having a first wireless communication module with a strong driving circuit, and a second wireless communication module with a weak driving circuit. The first wireless communication module is coupled to the second wireless communication module via only one wire. The first wireless communication module sends a first traffic pattern of a first wireless transceiving to the second wireless communication module via the wire, and receives a second traffic of a second wireless transceiving from the second wireless communication module via the wire. The second traffic pattern indicates whether the second wireless communication module decides to use a remaining period of time, in which the first wireless communication module is not required to perform wireless transceiving, for the second wireless transceiving.