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1. 发明授权

US09723496B2 Method and apparatus for interference cancellation by a user equipment using blind detection 有权
公开(公告)号：US09723496B2
公开(公告)日：2017-08-01
申请号：US14105086
申请日：2013-12-12
申请人： QUALCOMM Incorporated
发明人： Taesang Yoo , Hendrik Schoeneich , Tao Luo , Yongbin Wei , Myriam Rajih , Durga Prasad Malladi
IPC分类号： H04W24/02 , H04L5/00 , H04B7/06 , H04B7/08 , H04J11/00
CPC分类号： H04W24/02 , H04B7/0678 , H04B7/068 , H04B7/0842 , H04J11/005 , H04L5/0058
摘要： In order to cancel any interference due to the second signal (e.g., from a non-serving cell) from a signal received at a UE, without receiving additional control information, the UE blindly estimates parameters associated with decoding the second signal. This may include determining a metric based on sets of symbols associated with the signals in order to determine parameters for the second signal, e.g., the transmission mode, modulation format, and/or spatial scheme of the second signal. The parameters for the signal may be determined based on a comparison of the metric with a threshold. When a spatial scheme and a modulation format is unknown, the blind estimation may include determining a plurality of constellations of possible transmitted modulated symbols associated with a potential spatial scheme and modulation format combination. Interference cancellation can be performed using the constellations and a corresponding probability weight.

2. 发明授权

US09100231B2 Hybrid approach for physical downlink shared channel (PDSCH) interference cancellation 有权
标题翻译：物理下行链路共享信道（PDSCH）干扰消除的混合方法
公开(公告)号：US09100231B2
公开(公告)日：2015-08-04
申请号：US13666325
申请日：2012-11-01
申请人： QUALCOMM Incorporated
发明人： Taesang Yoo , Tao Luo , Hendrik Schoeneich , Myriam Rajih , Lu Zhao
IPC分类号： H04B15/00 , H04L25/03 , H04J11/00 , H04L1/00
CPC分类号： H04L25/0328 , H04J11/0056 , H04L1/0048 , H04L25/03305
摘要： Certain aspects of the present disclosure relate to a hybrid approach for Physical Downlink Shared Channel (PDSCH) Interference Cancellation (IC). In certain aspects, if the PDSCH information is known for a serving cell but not be known for interfering cell(s), a hybrid approach that involves using Codeword-level IC (CWIC) for the serving cell and using Symbol-level IC (SLIC) for the interfering cells may be used for better IC performance. The hybrid IC approach may start with a UE attempting to decode the serving cell PDSCH. If the decode is unsuccessful, the UE may perform CWIC for the serving cell followed by SLIC using the results of the CWIC stage. After the SLIC stage, the UE may attempt to decode the serving cell PDSCH again. The UE may perform multiple operations of this method until the serving cell PDSCH is successfully decoded or a maximum number of iterations is reached.
摘要翻译：本公开的某些方面涉及物理下行链路共享信道（PDSCH）干扰消除（IC）的混合方法。在某些方面，如果PDSCH信息对于服务小区而言是已知的，但对于干扰小区而言是不知道的，则涉及使用码流级IC（CWIC）用于服务小区并使用符号级IC（SLIC ）可用于更好的IC性能。混合IC方法可以从尝试对服务小区PDSCH进行解码的UE开始。如果解码不成功，则UE可以使用CWIC级的结果为服务小区后跟SLIC执行CWIC。在SLIC阶段之后，UE可以尝试再次对服务小区PDSCH进行解码。 UE可以执行该方法的多个操作，直到服务小区PDSCH成功解码或达到最大次数。

3. 发明申请

US20130107805A1 Reducing Complexity for Implementing Interference Cancellation Applied to Physical Channels of a Wireless Network 有权
标题翻译：降低应用于无线网络物理信道干扰消除的复杂度
公开(公告)号：US20130107805A1
公开(公告)日：2013-05-02
申请号：US13665302
申请日：2012-10-31
申请人： QUALCOMM Incorporated
发明人： Tao Luo , Yongbin Wei , Durga Prasad Malladi , Taesang Yoo , Lu Zhao , Myriam Rajih , Hendrik Schoeneich
IPC分类号： H04W4/00
CPC分类号： H04L25/03891 , H04J11/0023 , H04L25/03993
摘要： A system for wireless communication reduces implementation complexity for symbol level interference cancellation as applied to physical control and data channels, such as the physical downlink shared channel (PDSCH) and physical downlink control channel (PDCCH). A user equipment (UE) categorizes tones of a signal into tone groups. A different noise whitening matrix is applied to each tone group for demodulation and decoding of the signal.
摘要翻译：用于无线通信的系统降低了应用于诸如物理下行链路共享信道（PDSCH）和物理下行链路控制信道（PDCCH）的物理控制和数据信道的符号级干扰消除的实现复杂度。用户设备（UE）将信号的音调分类为音调组。将不同的噪声白化矩阵应用于每个音调组以进行信号的解调和解码。

4. 发明授权

US08885567B2 Reducing complexity for implementing interference cancellation applied to physical channels of a wireless network 有权
标题翻译：降低应用于无线网络物理信道的干扰消除的复杂度
公开(公告)号：US08885567B2
公开(公告)日：2014-11-11
申请号：US13665302
申请日：2012-10-31
申请人： QUALCOMM Incorporated
发明人： Tao Luo , Yongbin Wei , Durga Prasad Malladi , Taesang Yoo , Lu Zhao , Myriam Rajih , Hendrik Schoeneich
IPC分类号： H04L12/28 , H04L25/03 , H04J11/00
CPC分类号： H04L25/03891 , H04J11/0023 , H04L25/03993
摘要： A system for wireless communication reduces implementation complexity for symbol level interference cancellation as applied to physical control and data channels, such as the physical downlink shared channel (PDSCH) and physical downlink control channel (PDCCH). A user equipment (UE) categorizes tones of a signal into tone groups. A different noise whitening matrix is applied to each tone group for demodulation and decoding of the signal.
摘要翻译：用于无线通信的系统降低了应用于诸如物理下行链路共享信道（PDSCH）和物理下行链路控制信道（PDCCH）的物理控制和数据信道的符号级干扰消除的实现复杂度。用户设备（UE）将信号的音调分类为音调组。将不同的噪声白化矩阵应用于每个音调组以进行信号的解调和解码。

5. 发明申请

US20130115987A1 Hybrid Approach for Physical Downlink Shared Channel (PDSCH) Interference Cancellation 有权
标题翻译：物理下行链路共享信道（PDSCH）干扰消除的混合方法
公开(公告)号：US20130115987A1
公开(公告)日：2013-05-09
申请号：US13666325
申请日：2012-11-01
申请人： QUALCOMM Incorporated
发明人： Taesang Yoo , Tao Luo , Hendrik Schoeneich , Myriam Rajih , Lu Zhao
IPC分类号： H04B15/00 , H04W4/00
CPC分类号： H04L25/0328 , H04J11/0056 , H04L1/0048 , H04L25/03305
摘要： Certain aspects of the present disclosure relate to a hybrid approach for Physical Downlink Shared Channel (PDSCH) Interference Cancellation (IC). In certain aspects, if the PDSCH information is known for a serving cell but not be known for interfering cell(s), a hybrid approach that involves using Codeword-level IC (CWIC) for the serving cell and using Symbol-level IC (SLIC) for the interfering cells may be used for better IC performance. The hybrid IC approach may start with a UE attempting to decode the serving cell PDSCH. If the decode is unsuccessful, the UE may perform CWIC for the serving cell followed by SLIC using the results of the CWIC stage. After the SLIC stage, the UE may attempt to decode the serving cell PDSCH again. The UE may perform multiple operations of this method until the serving cell PDSCH is successfully decoded or a maximum number of iterations is reached.
摘要翻译：本公开的某些方面涉及物理下行链路共享信道（PDSCH）干扰消除（IC）的混合方法。在某些方面，如果PDSCH信息对于服务小区而言是已知的，但对于干扰小区而言是不知道的，则涉及使用码流级IC（CWIC）用于服务小区并使用符号级IC（SLIC ）可以用于更好的IC性能。混合IC方法可以从尝试对服务小区PDSCH进行解码的UE开始。如果解码不成功，则UE可以使用CWIC级的结果为服务小区后跟SLIC执行CWIC。在SLIC阶段之后，UE可以尝试再次对服务小区PDSCH进行解码。 UE可以执行该方法的多个操作，直到服务小区PDSCH成功解码或达到最大次数。

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