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11.发明授权
公开(公告)号：EP2606667B1
公开(公告)日：2018-05-16
申请号：EP12762742.0
申请日：2012-03-31
申请人： MediaTek Inc.
摘要： A method of implicit signaling to support In-Device coexistence interference avoidance is provided. A UE sends an IDC interference indication to an eNB. The indication indicates that a serving frequency becomes unusable due to a coexistence interference problem. The indication does not explicitly indicate a frequency index or a frequency location of the unusable serving frequency. The eNB determines the serving frequency as unusable in an implicit manner. The eNB also determines an implied unusable frequency region based on the received IDC indication. The implied unusable frequency region is between the serving frequency and the ISM band. In one advantageous aspect, the eNB configures a condition for the UE, such that the UE is refrained from sending IDC interference indications unless the condition is satisfied.
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12.发明公开ENHANCEMENT PROCEDURE OF SUSPENDING AND RESUMING UE DATA IN MOBILE COMMUNICATION NETWORKS 审中-公开中断的移动通信网络优化方法用户设备的数据恢复买卖
公开(公告)号：EP2724502A1
公开(公告)日：2014-04-30
申请号：EP13810650.5
申请日：2013-06-26
申请人： MediaTek, Inc
发明人： JHENG, Yu-Syuan , ZHANG, Yuanyuan , FU, I-Kang
摘要： A method for UE to indicate its upcoming transceiver operation status to network and help network to avoid inefficient radio resource schedule for better network efficiency is proposed. The proposed method also helps network to manage the connections for user applications to prevent unnecessary disruption due to short-term radio link disconnection. In one embodiment, the UE is a dual SIM dual standby (DSDS) UE. The UE first establishes an RRC connection and starts data transmission. Upon detecting a suspension event, the UE sends a signaling connection release indication (SCRI) with a new cause for “UE requested PS data suspension”. The SCRI may further include a suspension reason and a suspension period. When the network receives the SCRI, it will interpret that the UE may not be able to receive its downlink signal during the upcoming period and may prevent schedule radio resource for the UE.
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公开(公告)号：EP2596676A1
公开(公告)日：2013-05-29
申请号：EP11809283.2
申请日：2011-07-20
申请人： MediaTek, Inc
发明人： KO, Li-Chun , HSU, Hong-Kai , FU, I-Kang , LEE, Chi-Chen
IPC分类号： H04W88/06
CPC分类号： H04W72/1215 , H04W88/06
摘要： 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.
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14.发明公开METHOD OF MULTI-RADIO INTERWORKING IN HETEROGENEOUS WIRELESS COMMUNICATION NETWORKS 审中-公开过程在异构无线通信网络的多个无线合作
公开(公告)号：EP2545662A1
公开(公告)日：2013-01-16
申请号：EP11752851.3
申请日：2011-03-14
申请人： MediaTek Inc.
发明人： FU, I-Kang , CHOU, Chao-Chin
IPC分类号： H04B7/26
CPC分类号： H04W36/22 , H04W12/04 , H04W12/06 , H04W48/08 , H04W48/10 , H04W48/16 , H04W52/0274 , H04W84/12 , H04W88/06 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164
摘要： A method of multi-radio interworking to provide integrated cellular and WLAN access for a multi-radio device is provided. A serving base station in a cellular network first obtains wireless local area network (WLAN) information and then forward the WLAN information to a serving device such that the serving device is capable to connect with both the cellular network and a WLAN. The WLAN information may comprise scanning information, WLAN QoS information, WLAN layer-3 information, or additional WLAN access point information. The WLAN information is forwarded based on triggering events associated with the serving base station information, WLAN coverage information, or the serving device information. Based on the received WLAN information, when entering WLAN coverage, the serving device activates its WLAN access to forward traffic from the cellular access network to the WLAN access network. When leaving WLAN coverage, the serving device deactivates its WLAN access to save power consumption.
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15.发明公开
公开(公告)号：EP2499758A1
公开(公告)日：2012-09-19
申请号：EP11833858.1
申请日：2011-10-20
申请人： MediaTek Inc.
发明人： FU, I-Kang , LIU, Chieh-Chao
IPC分类号： H04B7/26
CPC分类号： H04B1/406 , H04B1/525 , H04B15/00 , H04B2215/068 , H04W36/20 , H04W52/244 , H04W52/365 , H04W72/1215 , H04W88/06
摘要： A hybrid FDM/TDM solution for in-device coexistence interference avoidance is proposed. A user equipment (UE) comprises a first radio transceiver and a second co-located radio transceiver. The UE detects coexistence interference between the two radios based on radio signal measurement. The UE sends an IDC interference indicator to its serving base station (eNB). The UE also reports IDC information including recommendation for FDM and TDM configurations to the eNB. The eNB receives the IDC interference indicator and evaluates whether to trigger FDM-based solution to mitigate the coexistence interference. The eNB also evaluates whether to trigger TDM-based solution to mitigate coexistence interference. The evaluation is based on the recommended FDM and TDM configurations. The eNB may trigger FDM-based solution, TDM-based solution, or FDM and TDM solution based on the evaluation results of the feasibility and effectiveness of each solution.
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16.发明公开MEASUREMENT AND CARRIER GROUP BASED OPTIMIZATION IN WIRELESS OFDM MULTI-CARRIER COMMUNICATION SYSTEMS 审中-公开对测量的和支持团体基于代价的优化在无线OFDM更多交通通信系统
公开(公告)号：EP2491693A1
公开(公告)日：2012-08-29
申请号：EP10840598.6
申请日：2010-12-30
申请人： MediaTek Inc.
发明人： CHOU, Chao-Chin , FU, I-Kang
IPC分类号： H04L27/26
CPC分类号： H04L27/2601 , H04B17/318 , H04B17/336 , H04B17/373 , H04B17/382 , H04W72/085
摘要： In a wireless OFDM multi-carrier communication system, a mobile station obtains measurement result of a first received signal strength indication (RSSI) of a first preamble signal transmitted from a base station over a first radio frequency (RF) carrier. The mobile station also obtains signal offset information between the first RF carrier and a second RF carrier of the base station. In response to the measurement result and the signal offset information, the mobile station estimates a second RSSI of a second preamble signal transmitted by the base station over the second RF carrier without performing scanning over the second RF carrier. In one novel aspect, the mobile station identifies a carrier group containing multiple carriers that belong to the same base station. Measurement optimization, initial cell selection and cell reselection optimization, report reduction, and other carrier group based optimization can be achieved in the multi-carrier system based on identified carrier group.
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17.发明公开METHOD AND APPARATUS OF DATA TRANSMISSION OVER GUARD SUB-CARRIERS IN MULTI-CARRIER OFDM SYSTEMS 审中-公开方法和设备上的数据传输保护下，承运人多个载波的OFDM系统
公开(公告)号：EP2308206A1
公开(公告)日：2011-04-13
申请号：EP09793848.4
申请日：2009-07-07
申请人： Mediatek Inc.
发明人： FU, I-Kang , CHENG, Po-Yuen , LIAO, Pei-Kai
CPC分类号： H04W72/0453 , H04J11/00 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/0039 , H04L5/0044 , H04L5/0048 , H04L5/0053 , H04L25/03343 , H04L25/03821 , H04L27/2626 , H04L27/2646 , H04L27/2666 , H04W72/02
摘要： A method of data transmission over guard sub-carriers is provided in a multi-carrier OFDM system. Adjacent radio frequency (RF) carriers are used to carry radio signals transmitted through adjacent frequency channels. A plurality of guard sub-carriers between adjacent frequency channels are aligned and identified for data transmission in a pre-defined physical resource unit. The identified guard sub-carriers do not overlap with normal data sub-carriers of the radio signals transmitted through the adjacent frequency channels. At least one of the identified guard sub-carriers is reserved as NULL sub-carrier. A flexible multi-carrier transceiver architecture is also provided in a multi-carrier OFDM system. Different multi-carrier and/or MIMO/SISO data transmission schemes are implemented by adaptively reconfigure same hardware modules including common MAC layer module, physical layer entities, and RF entities. Furthermore, the flexible multi-carrier transceiver architecture can be used to support data transmission over guard sub-carriers.
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公开(公告)号：EP3001769B1
公开(公告)日：2020-01-01
申请号：EP15188792.4
申请日：2009-09-03
申请人： MediaTek Inc.
发明人： LEE, Chi-Chen , FU, I-Kang , KO, Li-Chun , HSU, Hong-Kai , YEH, Chih-Hao , SU, Jiun-Jang
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19.发明公开
公开(公告)号：EP3407557A1
公开(公告)日：2018-11-28
申请号：EP18178352.3
申请日：2010-12-30
申请人： MediaTek Inc.
发明人： CHOU, Chao-Chin , FU, I-Kang
IPC分类号： H04L27/26 , H04B17/318 , H04W72/08
CPC分类号： H04L27/2601 , H04B17/318 , H04B17/336 , H04B17/373 , H04B17/382 , H04W72/085
摘要： In a wireless OFDM multi-carrier communication system, a mobile station obtains measurement result of a first received signal strength indication (RSSI) of a first preamble signal transmitted from a base station over a first radio frequency (RF) carrier. The mobile station also obtains signal offset information between the first RF carrier and a second RF carrier of the base station. In response to the measurement result and the signal offset information, the mobile station estimates a second RSSI of a second preamble signal transmitted by the base station over the second RF carrier without performing scanning over the second RF carrier. In one novel aspect, the mobile station identifies a carrier group containing multiple carriers that belong to the same base station. Measurement optimization, initial cell selection and cell reselection optimization, report reduction, and other carrier group based optimization can be achieved in the multi-carrier system based on identified carrier group.
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20.发明授权
公开(公告)号：EP2481237B1
公开(公告)日：2018-10-03
申请号：EP11816119.9
申请日：2011-08-12
申请人： MediaTek Inc.
发明人： FU, I-Kang , PLUMB, William
CPC分类号： H04B15/00 , H04B1/1027 , H04B1/406 , H04B1/48 , H04B1/525 , H04B2001/485 , H04W4/80 , H04W52/244 , H04W72/0473 , H04W76/28 , H04W88/06
摘要： A coexistence interference mitigation method is provided. In a wireless network, a wireless device is equipped with multiple radios in the same device platform. The wireless device also has a control entity that communicates with the multiple co-located radio modules. A first radio module receives a notification from the control entity. The notification informs a critical signaling status of a second radio module co-located with the first radio module. Upon receiving the notification, the first radio module stops uplink transmission due to coexistence interference and transmits a coexistence indicator to its serving eNB. After a certain period, the first radio module receives a second notification that informs a completion status of the critical signaling of the second radio module. Upon receiving the second notification, the first radio module resumes uplink transmission and transmits a coexistence resume indicator to the eNB.
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