专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2012041255A1 METHOD OF TDM IN-DEVICE COEXISTENCE INTERFERENCE AVOIDANCE 审中-公开
标题翻译： TDM设备共存干扰避免的方法
公开(公告)号：WO2012041255A1
公开(公告)日：2012-04-05
申请号：PCT/CN2011/080479
申请日：2011-09-30
申请人： MEDIATEK SINGAPORE PTE. LTD. , LIN, Kuhn-Chang , FU, I-Kang , SU, York-Ted
发明人： LIN, Kuhn-Chang , FU, I-Kang , SU, York-Ted
IPC分类号： H04W16/14 , H04B7/26 , H04B1/04
CPC分类号： H04W28/044 , H04W72/0446 , H04W72/1215 , H04W74/085 , H04W76/28 , H04W88/06
摘要： A method of TDM in-device coexistence (IDC) interference avoidance is proposed. In a wireless communication device, a first radio module is co-located with a second radio module in the same device platform. The first radio module obtains traffic and scheduling information of the second radio module. The first radio module then determines a desired TDM pattern based on the traffic and scheduling information to prevent IDC interference with the second radio module. The first radio module also transmits TDM coexistence pattern information based on the desired TDM pattern to a base station. In one embodiment, the TDM coexistence pattern information comprises a recommended TDM pattern periodicity and a scheduling period to maximize IDC efficiency subject to limited level of IDC interference possibility. In one specific example, the TDM coexistence pattern information comprises a set of discontinuous reception (DRX) configuration parameters defined in long-term evolution (LTE) 3GPP standards.
摘要翻译：提出了一种TDM设备共存（IDC）干扰避免的方法。在无线通信设备中，第一无线电模块与同一设备平台中的第二无线电模块共同定位。第一无线电模块获得第二无线电模块的业务和调度信息。然后，第一无线电模块基于业务和调度信息确定期望的TDM模式，以防止IDC与第二无线电模块的干扰。第一无线电模块还将基于期望的TDM模式的TDM共存模式信息发送到基站。在一个实施例中，TDM共存模式信息包括推荐的TDM模式周期性和调度周期，以在受到IDC干扰可能性有限的情况下最大化IDC效率。在一个具体示例中，TDM共存模式信息包括在长期演进（LTE）3GPP标准中定义的一组不连续接收（DRX）配置参数。

2. 发明申请

WO2015070804A1 LARGE-SCALE FADING COEFFICIENT ESTIMATION IN WIRELESS MASSIVE MIMO SYSTEMS 审中-公开
标题翻译：无线大规模MIMO系统中的大规模衰减系数估计
公开(公告)号：WO2015070804A1
公开(公告)日：2015-05-21
申请号：PCT/CN2014/091148
申请日：2014-11-14
申请人： MEDIATEK SINGAPORE PTE. LTD. , LIU, Yen-Cheng , CHEN, Ko-Feng , SU, York-Ted
发明人： LIU, Yen-Cheng , CHEN, Ko-Feng , SU, York-Ted
IPC分类号： H04L27/32
CPC分类号： H04B7/0452 , H04L25/0204 , H04L25/022 , H04L25/0228 , H04L25/0242
摘要： Efficient algorithms for estimating LSFCs with no aid of SSFCs by taking advantage of the channel hardening effect and large spatial samples available to a massive MIMO base station (BS) are proposed. The LSFC estimates are of low computational complexity and require relatively small training overhead. In the uplink direction, mobile stations (MSs) transmit orthogonal uplink pilots for the serving BS to estimate LSFCs. In the downlink direction, the BS transmits either pilot signal or data signal intended to the MSs that have already established time and frequency synchronization. The proposed uplink and downlink LSFC estimators are unbiased and asymptotically optimal as the number of BS antennas tends to infinity.
摘要翻译：提出了通过利用通道硬化效应和大规模MIMO基站（BS）可用的大空间样本来估计LSFC的有效算法。 LSFC估计的计算复杂度低，需要较少的培训开销。在上行方向上，移动台（MS）为服务BS发送正交上行链路导频以估计LSFC。在下行链路方向上，BS发送指向已经建立时间和频率同步的MS的导频信号或数据信号。随着BS天线的数量趋于无穷大，所提出的上行链路和下行链路LSFC估计器是无偏的且渐近最优的。

3. 发明申请

WO2011082689A1 TWO-STEP UPLINK SYNCHRONIZATION FOR PICO/FEMTOCELL 审中-公开
标题翻译： PICO / FEMTOCELL的两步上行同步
公开(公告)号：WO2011082689A1
公开(公告)日：2011-07-14
申请号：PCT/CN2011/070103
申请日：2011-01-07
申请人： MEDIATEK INC. , LIAO, Pei-Kai , CHEN, Yih-Shen , LIN, Kuhn-Chang , SU, York-Ted
发明人： LIAO, Pei-Kai , CHEN, Yih-Shen , LIN, Kuhn-Chang , SU, York-Ted
IPC分类号： H04W56/00
CPC分类号： H04W56/0045 , H04W28/04 , H04W48/08 , H04W48/16 , H04W56/0015 , H04W84/045
摘要： A two-step uplink synchronization method is provided for uplink synchronization between a mobile station and a pico/femto base station that is deployed together with an overlay macro/micro base station. In a first step, the pico/femto BS encodes and broadcasts UL transmission timing advance offset information via a broadcast channel. The MS decodes the received UL transmission timing advance offset information and advances its uplink timing for uplink ranging or reference signal transmission based on the decoded offset value. In a second step, the MS and the pico/femto BS performs regular uplink synchronization and uplink access. In one example, the UL transmission timing advance offset information indicates a round-trip propagation time of radio signals between the pico/femto base station and the overlay macro/micro base station. By using the two-step uplink synchronization method, a unified synchronous ranging channel may be used for ranging and UL access in pico/femtocells with reduced interference.
摘要翻译：提供了两步上行同步方法，用于与覆盖宏/微基站一起部署的移动台和微微/毫微微基站之间的上行链路同步。在第一步中，微微/毫微微BS经由广播信道编码和广播UL传输定时提前偏移信息。 MS对所接收的UL传输定时提前偏移信息进行解码，并基于解码的偏移值推进其上行链路测距或参考信号传输的上行链路定时。在第二步中，MS和微微/毫微微BS执行常规的上行链路同步和上行链路接入。在一个示例中，UL传输定时提前偏移信息指示微微/毫微微基站和重叠宏/微基站之间的无线电信号的往返传播时间。通过使用两步上行同步方法，统一的同步测距信道可以用于具有减小的干扰的微微/毫微微小区中的测距和UL接入。

4. 发明公开

EP2494809A1 METHOD OF TDM IN-DEVICE COEXISTENCE INTERFERENCE AVOIDANCE 有权转让
标题翻译：一种用于在TDM在设备中的共存避免干扰
公开(公告)号：EP2494809A1
公开(公告)日：2012-09-05
申请号：EP11828151.8
申请日：2011-09-30
申请人： MediaTek Singapore Pte Ltd.
发明人： LIN, Kuhn-Chang , FU, I-Kang , SU, York-Ted
IPC分类号： H04W16/14 , H04B7/26 , H04B1/04
CPC分类号： H04W28/044 , H04W72/0446 , H04W72/1215 , H04W74/085 , H04W76/28 , H04W88/06
摘要： A method of TDM in-device coexistence (IDC) interference avoidance is proposed. In a wireless communication device, a first radio module is co-located with a second radio module in the same device platform. The first radio module obtains traffic and scheduling information of the second radio module. The first radio module then determines a desired TDM pattern based on the traffic and scheduling information to prevent IDC interference with the second radio module. The first radio module also transmits TDM coexistence pattern information based on the desired TDM pattern to a base station. In one embodiment, the TDM coexistence pattern information comprises a recommended TDM pattern periodicity and a scheduling period to maximize IDC efficiency subject to limited level of IDC interference possibility. In one specific example, the TDM coexistence pattern information comprises a set of discontinuous reception (DRX) configuration parameters defined in long-term evolution (LTE) 3GPP standards.

5. 发明公开

EP2997705A1 LARGE-SCALE FADING COEFFICIENT ESTIMATION IN WIRELESS MASSIVE MIMO SYSTEMS 有权
标题翻译：大面积褪色系数估计在无线MASSIVE MIMO系统
公开(公告)号：EP2997705A1
公开(公告)日：2016-03-23
申请号：EP14861915.8
申请日：2014-11-14
申请人： MediaTek Singapore Pte Ltd.
发明人： LIU, Yen-Cheng , CHEN, Ko-Feng , SU, York-Ted
IPC分类号： H04L27/32
CPC分类号： H04B7/0452 , H04L25/0204 , H04L25/022 , H04L25/0228 , H04L25/0242
摘要： Efficient algorithms for estimating LSFCs with no aid of SSFCs by taking advantage of the channel hardening effect and large spatial samples available to a massive MIMO base station (BS) are proposed. The LSFC estimates are of low computational complexity and require relatively small training overhead. In the uplink direction, mobile stations (MSs) transmit orthogonal uplink pilots for the serving BS to estimate LSFCs. In the downlink direction, the BS transmits either pilot signal or data signal intended to the MSs that have already established time and frequency synchronization. The proposed uplink and downlink LSFC estimators are unbiased and asymptotically optimal as the number of BS antennas tends to infinity.

6. 发明授权

EP2494809B1 METHOD AND SYSTEM OF TDM IN-DEVICE COEXISTENCE INTERFERENCE AVOIDANCE 有权转让
公开(公告)号：EP2494809B1
公开(公告)日：2018-06-27
申请号：EP11828151.8
申请日：2011-09-30
申请人： MediaTek Singapore Pte. Ltd.
发明人： LIN, Kuhn-Chang , FU, I-Kang , SU, York-Ted
IPC分类号： H04W72/12 , H04W88/06
CPC分类号： H04W72/0446 , H04W72/1215 , H04W74/085 , H04W76/28 , H04W88/06
摘要： A method of TDM in-device coexistence (IDC) interference avoidance is proposed. In a wireless communication device, a first radio module is co-located with a second radio module in the same device platform. The first radio module obtains traffic and scheduling information of the second radio module. The first radio module then determines a desired TDM pattern based on the traffic and scheduling information to prevent IDC interference with the second radio module. The first radio module also transmits TDM coexistence pattern information based on the desired TDM pattern to a base station. In one embodiment, the TDM coexistence pattern information comprises a recommended TDM pattern periodicity and a scheduling period to maximize IDC efficiency subject to limited level of IDC interference possibility. In one specific example, the TDM coexistence pattern information comprises a set of discontinuous reception (DRX) configuration parameters defined in long-term evolution (LTE) 3GPP standards.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式