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1. 发明授权

US08854945B2 Enhanced adaptive gain control in heterogeneous networks 有权
标题翻译：异构网络中增强的自适应增益控制
公开(公告)号：US08854945B2
公开(公告)日：2014-10-07
申请号：US13292985
申请日：2011-11-09
申请人： Peter Gaal , Zhifei Fan , Yongbin Wei , Hao Xu
发明人： Peter Gaal , Zhifei Fan , Yongbin Wei , Hao Xu
IPC分类号： H04L12/28 , H04W52/16 , H03G3/30 , H04J1/16 , H04W52/24
CPC分类号： H03G3/3078 , H04W52/16 , H04W52/244
摘要： In wireless communications, adaptive gain control may be performed by scaling of signals before and after a transform. A received signal power may be non-causally scaled to a first level within a desired range before transforming the received signal. The scaled signal is transformed between a time domain to a frequency domain and then its power is again non-causally scaled based on the first level. A feed forward circuit may be used in the power scaling. Different portions of the signal may be power adjusted independently of other portions. The different portions may be separated on a per-channel basis. Power scaling may be done on a symbol-by-symbol basis.
摘要翻译：在无线通信中，可以通过缩放变换之前和之后的信号来执行自适应增益控制。在变换接收到的信号之前，接收到的信号功率可以在期望范围内被非因果地缩放到第一电平。缩放的信号在时域到频域之间变换，然后基于第一级再次非因果地缩放它的功率。可以在功率缩放中使用前馈电路。信号的不同部分可以独立于其它部分进行功率调节。可以在每个通道的基础上分离不同的部分。功率缩放可以在逐个符号的基础上进行。

2. 发明申请

US20130114519A1 ENHANCED ADAPTIVE GAIN CONTROL IN HETEROGENEOUS NETWORKS 有权
标题翻译：增强异构网络中的自适应增益控制
公开(公告)号：US20130114519A1
公开(公告)日：2013-05-09
申请号：US13292985
申请日：2011-11-09
申请人： Peter Gaal , Zhifei Fan , Yongbin Wei , Hao Xu
发明人： Peter Gaal , Zhifei Fan , Yongbin Wei , Hao Xu
IPC分类号： H04W52/52 , H04W72/04
CPC分类号： H03G3/3078 , H04W52/16 , H04W52/244
摘要： In wireless communications, adaptive gain control may be performed by scaling of signals before and after a transform. A received signal power may be non-causally scaled to a first level within a desired range before transforming the received signal. The scaled signal is transformed between a time domain to a frequency domain and then its power is again non-causally scaled based on the first level. A feed forward circuit may be used in the power scaling. Different portions of the signal may be power adjusted independently of other portions. The different portions may be separated on a per-channel basis. Power scaling may be done on a symbol-by-symbol basis.
摘要翻译：在无线通信中，可以通过缩放变换之前和之后的信号来执行自适应增益控制。在变换接收到的信号之前，接收到的信号功率可以在期望范围内被非因果地缩放到第一电平。缩放的信号在时域到频域之间变换，然后基于第一级再次非因果地缩放它的功率。可以在功率缩放中使用前馈电路。信号的不同部分可以独立于其它部分进行功率调节。可以在每个通道的基础上分离不同的部分。功率缩放可以在逐个符号的基础上进行。

3. 发明申请

US20110292917A1 SYSTEM AND METHOD FOR TIMING ADJUSTMENT TO PROTECT CQI 审中-公开
标题翻译：用于定时调整以保护CQI的系统和方法
公开(公告)号：US20110292917A1
公开(公告)日：2011-12-01
申请号：US13116314
申请日：2011-05-26
申请人： Zhifei Fan , Hao Xu , Yongbin Wei , Onur Senel , Zhengwei Liu , Vikas Jain
发明人： Zhifei Fan , Hao Xu , Yongbin Wei , Onur Senel , Zhengwei Liu , Vikas Jain
IPC分类号： H04W72/12
CPC分类号： H04W56/0045 , H04L5/0023 , H04L5/0039 , H04L27/2636 , H04L27/2655 , H04W72/1268
摘要： Certain aspects of the present disclosure propose methods for protecting channel quality indicator (CQI) modulation symbols in a subframe (e.g., a localized frequency division multiplexing (LFDM) subframe). For some aspects, a timing adjustment method may be utilized to adjust time of a UE with respect to an eNodeB. The timing adjustment method may introduce a positive time offset to be used for reducing time mismatch between the UE and the eNodeB. In another aspect, a buffer may be used at the eNodeB to store symbols received by the eNodeB before removing the cyclic prefix information from the subframe. The eNodeB may use the stored symbols and an artificial time delay to ensure that the CQI information is protected. For some aspects, the CQI modulation symbols may not be located at the beginning of an LFDM symbol.
摘要翻译：本公开的某些方面提出了在子帧（例如，局部频分复用（LFDM）子帧）中保护信道质量指示符（CQI）调制符号的方法。对于一些方面，可以利用定时调整方法来调整UE相对于eNodeB的时间。定时调整方法可以引入正时间偏移，以用于减少UE与eNodeB之间的时间失配。在另一方面，可以在eNodeB处使用缓冲器来存储由eNodeB接收的符号，然后从子帧中删除循环前缀信息。 eNodeB可以使用存储的符号和人造时间延迟来确保CQI信息被保护。对于一些方面，CQI调制符号可能不位于LFDM符号的开头。

4. 发明授权

US08345794B2 Encoded control channel information interleaving 有权
标题翻译：编码控制信道信息交织
公开(公告)号：US08345794B2
公开(公告)日：2013-01-01
申请号：US12431410
申请日：2009-04-28
申请人： Hao Xu , Durga Prasad Malladi , Peter Gaal , Zhifei Fan
发明人： Hao Xu , Durga Prasad Malladi , Peter Gaal , Zhifei Fan
IPC分类号： H04K1/02 , H03M13/00
CPC分类号： H04L1/0026 , H03M13/136 , H03M13/271 , H03M13/275 , H03M13/6362 , H03M13/6525 , H03M13/6544 , H04L1/001 , H04L1/0057 , H04L1/0071 , H04L1/0072
摘要： Systems and methodologies are described that facilitate interleaving encoded control channel information for transmission over an uplink channel. The encoded control channel information, for example, can include encoded Channel Quality Indicator (CQI) information, encoded Precoding Matrix Indicator (PMI) information, and/or Rank Indicator (RI) information. CQI information, PMI information, and/or RI information can be encoded at an access terminal, for instance, by applying a punctured Reed Muller block code to generate a sequence of encoded bits. The encoded bits can be interleaved to reorder the sequence utilizing one or more interleaving approaches. Examples of interleaving approaches that can be leveraged include prime number based interleaving, generalized bit reversal interleaving, column-row interleaving with column bit reversal, and/or M-sequence based interleaving. Further, the reordered sequence of encoded bits can be transmitted to a base station over an uplink channel.
摘要翻译：描述了促进交织编码的控制信道信息以在上行链路信道上传输的系统和方法。编码的控制信道信息例如可以包括编码信道质量指示符（CQI）信息，经编码的预编码矩阵指示符（PMI）信息和/或秩指示符（RI）信息。 CQI信息，PMI信息和/或RI信息可以在接入终端进行编码，例如通过应用穿孔的Reed Muller块码来生成编码比特序列。编码比特可以被交织，以便利用一个或多个交织方法对序列重排序。可以利用的交织方法的示例包括基于素数的交织，广义比特反转交织，具有列比特反转的列行交织和/或基于M序列的交织。此外，编码比特的重新排序的序列可以通过上行链路信道发送到基站。

5. 发明申请

US20090296850A1 ENCODED CONTROL CHANNEL INFORMATION INTERLEAVING 有权
标题翻译：编码控制信道信息交互
公开(公告)号：US20090296850A1
公开(公告)日：2009-12-03
申请号：US12431410
申请日：2009-04-28
申请人： Hao Xu , Durga Prasad Malladi , Peter Gaal , Zhifei Fan
发明人： Hao Xu , Durga Prasad Malladi , Peter Gaal , Zhifei Fan
IPC分类号： H04L27/00
CPC分类号： H04L1/0026 , H03M13/136 , H03M13/271 , H03M13/275 , H03M13/6362 , H03M13/6525 , H03M13/6544 , H04L1/001 , H04L1/0057 , H04L1/0071 , H04L1/0072
摘要： Systems and methodologies are described that facilitate interleaving encoded control channel information for transmission over an uplink channel. The encoded control channel information, for example, can include encoded Channel Quality Indicator (CQI) information, encoded Precoding Matrix Indicator (PMI) information, and/or Rank Indicator (RI) information. CQI information, PMI information, and/or RI information can be encoded at an access terminal, for instance, by applying a punctured Reed Muller block code to generate a sequence of encoded bits. The encoded bits can be interleaved to reorder the sequence utilizing one or more interleaving approaches. Examples of interleaving approaches that can be leveraged include prime number based interleaving, generalized bit reversal interleaving, column-row interleaving with column bit reversal, and/or M-sequence based interleaving. Further, the reordered sequence of encoded bits can be transmitted to a base station over an uplink channel.
摘要翻译：描述了促进交织编码的控制信道信息以在上行链路信道上传输的系统和方法。编码的控制信道信息例如可以包括编码信道质量指示符（CQI）信息，经编码的预编码矩阵指示符（PMI）信息和/或秩指示符（RI）信息。 CQI信息，PMI信息和/或RI信息可以在接入终端进行编码，例如通过应用穿孔的Reed Muller块码来生成编码比特序列。编码比特可以被交织，以便利用一个或多个交织方法对序列重排序。可以利用的交织方法的示例包括基于素数的交织，广义比特反转交织，具有列比特反转的列行交织和/或基于M序列的交织。此外，编码比特的重新排序的序列可以通过上行链路信道发送到基站。

6. 发明申请

US20120008516A1 TTL OPERATIONS FOR SMALL RB ASSIGNMENTS 有权
标题翻译：小型RB分配的TTL操作
公开(公告)号：US20120008516A1
公开(公告)日：2012-01-12
申请号：US13179416
申请日：2011-07-08
申请人： Ke Liu , Zhifei Fan , Hao Xu , Xiaoxia Zhang
发明人： Ke Liu , Zhifei Fan , Hao Xu , Xiaoxia Zhang
IPC分类号： H04W24/00
CPC分类号： H04W56/0045 , H04W56/005 , H04W72/04
摘要： Certain aspects of the present disclosure provide techniques for wireless communications, wherein more accurate timing offset calculations may be achieved for uplink transmissions with a relatively small number of assigned resources.
摘要翻译：本公开的某些方面提供了用于无线通信的技术，其中可以对具有相对较少数量的分配资源的上行链路传输实现更精确的定时偏移计算。

7. 发明申请

US20090245284A1 ENCODING AND DECODING OF CONTROL INFORMATION FOR WIRELESS COMMUNICATION 有权
标题翻译：无线通信控制信息的编码和解码
公开(公告)号：US20090245284A1
公开(公告)日：2009-10-01
申请号：US12407161
申请日：2009-03-19
申请人： Hao Xu , Zhifei Fan
发明人： Hao Xu , Zhifei Fan
IPC分类号： H04J3/24
CPC分类号： H04L1/0028 , H04L1/0026 , H04L1/0057 , H04L1/0073 , H04L1/1671
摘要： Techniques for sending control information in a wireless communication system are described. In one design, a user equipment (UE) may map first information (e.g., CQI information) to M most significant bits (MSBs) of a message and may map second information (e.g., ACK information) to N least significant bits (LSBs) of the message if the second information is sent, where M≧1 and N≧1. The UE may encode the message with a block code, e.g., encode the M MSBs with the first M basis sequences of the block code and encode the N LSBs with the next N basis sequences of the block code. The second information may include N ACK bits. The UE may set each ACK bit to a first value for an ACK or to a second value for a NACK. The second value may also be used for discontinuous transmission (DTX) of ACK information.
摘要翻译：描述用于在无线通信系统中发送控制信息的技术。在一种设计中，用户设备（UE）可将第一信息（例如，CQI信息）映射到消息的M个最高有效位（MSB），并将第二信息（例如，ACK信息）映射到N个最低有效位（LSB）的消息，如果第二个信息被发送，其中M> = 1和N> = 1。 UE可以用块码对消息进行编码，例如用块码的第一M个基本序列对M个MSB进行编码，并用块码的下一个N个基本序列对N个LSB进行编码。第二信息可以包括N个ACK位。 UE可以将每个ACK位设置为ACK的第一值或针对NACK的第二值。第二个值也可用于ACK信息的不连续传输（DTX）。

8. 发明申请

US20090196247A1 SIMULTANEOUS TRANSMISSION OF ACKNOWLEDGEMENT, CHANNEL QUALITY INDICATOR AND SCHEDULING REQUEST 有权
标题翻译：同时传送确认信息，信道质量指示符和调度请求
公开(公告)号：US20090196247A1
公开(公告)日：2009-08-06
申请号：US12364405
申请日：2009-02-02
申请人： Zhifei Fan , Hao Xu , Xiaoxia Zhang
发明人： Zhifei Fan , Hao Xu , Xiaoxia Zhang
IPC分类号： H04W72/12
CPC分类号： H04W72/0413 , H04L5/0053 , H04L5/0055 , H04L5/0057 , H04W72/1268
摘要： Systems and methodologies are described that facilitate simultaneous transmission of control information in a single sub-frame. For instance, simultaneous transmission can maintain single carrier waveforms for a control channel even when a plurality of information types is scheduled in concurrently. Channel quality indicators, scheduling requests and acknowledgement messages can be jointly coded. In addition, reference symbols in a sub-frame can be modulated to indicate values associated with a scheduling request or an acknowledgement message. Moreover, in situations where channel quality indicators, scheduling requests and or acknowledgement messages are simultaneously scheduled, one or more can be dropped. Further, a single carrier constraint can be relaxed to enable simultaneous transmission of information in the sub-frame at different frequencies.
摘要翻译：描述了便于在单个子帧中同时传输控制信息的系统和方法。例如，即使当并行调度多个信息类型时，同时传输也可以保持用于控制信道的单载波波形。信道质量指示符，调度请求和确认消息可以被联合编码。此外，子帧中的参考符号可以被调制以指示与调度请求或确认消息相关联的值。此外，在同时调度信道质量指示符，调度请求和确认消息的情况下，可以丢弃一个或多个。此外，可以放宽单载波约束以使得能够以不同频率在子帧中同时传输信息。

9. 发明授权

US09820273B2 Uplink coordinated multipoint communications in a wireless network 有权
公开(公告)号：US09820273B2
公开(公告)日：2017-11-14
申请号：US13037213
申请日：2011-02-28
申请人： Xiaoxia Zhang , Hao Xu , Renqiu Wang , Zhifei Fan
发明人： Xiaoxia Zhang , Hao Xu , Renqiu Wang , Zhifei Fan
IPC分类号： H04W72/04
CPC分类号： H04W72/0426 , H04W72/04
摘要： Devices, systems, methods and/or computer program products are provided to facilitate coordinated multipoint transmission and reception of communications in a wireless network. In some scenarios, different set of resources are allocated for uplink transmissions of multiple user equipment. In other scenarios collision avoidance and/or multiplexing techniques are used to enable reception and decoding of multiple uplink transmissions on the same or overlapping resources at the same time. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

10. 发明申请

US20120057535A1 UPLINK COORDINATED MULTIPOINT COMMUNICATIONS IN A WIRELESS NETWORK 有权
标题翻译：无线网络中的UPLINK协调多点通信
公开(公告)号：US20120057535A1
公开(公告)日：2012-03-08
申请号：US13037213
申请日：2011-02-28
申请人： Xiaoxia Zhang , Hao Xu , Renqiu Wang , Zhifei Fan
发明人： Xiaoxia Zhang , Hao Xu , Renqiu Wang , Zhifei Fan
IPC分类号： H04W72/04
CPC分类号： H04W72/0426 , H04W72/04
摘要： Devices, systems, methods and/or computer program products are provided to facilitate coordinated multipoint transmission and reception of communications in a wireless network. In some scenarios, different set of resources are allocated for uplink transmissions of multiple user equipment. In other scenarios collision avoidance and/or multiplexing techniques are used to enable reception and decoding of multiple uplink transmissions on the same or overlapping resources at the same time. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译：提供设备，系统，方法和/或计算机程序产品以便于无线网络中的通信的协调多点发送和接收。在一些情况下，为多个用户设备的上行链路传输分配不同的资源集合。在其他情况下，使用冲突避免和/或复用技术来实现在相同或重叠的资源上同时接收和解码多个上行链路传输。本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。

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