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1. 发明授权

US08428156B2 Rate control for multi-channel communication systems 有权
标题翻译：多通道通讯系统的速率控制
公开(公告)号：US08428156B2
公开(公告)日：2013-04-23
申请号：US11688235
申请日：2007-03-19
申请人： Hao Xu , Byoung-Hoon Kim , Durga Prasad Malladi
发明人： Hao Xu , Byoung-Hoon Kim , Durga Prasad Malladi
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/006 , H04L5/023 , H04L25/0206 , H04L27/2608
摘要： Various methods and systems for determining reverse-link data rates in a multi-user communication system are disclosed. For example, an apparatus for controlling a data rate of at least a first UE in a multi-user communication system is disclosed. The apparatus may include a channel estimation device configured to determine channel estimates for a plurality of different reverse-link signals to produce a plurality of channel estimates, a demodulation device configured to determine a first signal-to-noise (SNR) ratio for the first UE using the plurality of different channels estimates, and a data rate determining device configured to determine a first reverse-link data rate for the first UE using the first SNR.
摘要翻译：公开了用于在多用户通信系统中确定反向链路数据速率的各种方法和系统。例如，公开了一种用于在多用户通信系统中控制至少第一UE的数据速率的装置。该装置可以包括：信道估计装置，被配置为确定多个不同反向链路信号的信道估计以产生多个信道估计;解调装置，被配置为确定第一信道估计的第一信噪比 UE使用多个不同信道估计，以及数据速率确定装置，被配置为使用第一SNR确定第一UE的第一反向链路数据速率。

2. 发明授权

US09130791B2 Uplink channel estimation using a signaling channel 有权
标题翻译：使用信令信道的上行链路信道估计
公开(公告)号：US09130791B2
公开(公告)日：2015-09-08
申请号：US11687645
申请日：2007-03-17
申请人： Byoung-Hoon Kim , Durga Prasad Malladi , Hao Xu
发明人： Byoung-Hoon Kim , Durga Prasad Malladi , Hao Xu
IPC分类号： H04B17/00 , H04L25/02 , H04L27/26 , H04L1/00 , H04L1/02 , H04L1/06 , H04L5/02
CPC分类号： H04L5/0057 , H04B7/0413 , H04B7/0632 , H04B2201/70701 , H04L1/0002 , H04L1/02 , H04L1/06 , H04L5/023 , H04L25/0224 , H04L25/023 , H04L27/261 , H04W52/325 , H04W72/042
摘要： Techniques for efficiently deriving uplink channel estimates without consuming much additional uplink resources are described. A user equipment (UE) may send a request for uplink resources on a request channel (REQCH) whenever the UE desires to transmit data on the uplink. The UE may send the REQCH on a set of subcarriers and from multiple antennas, e.g., send REQCH data on data subcarriers and pilot on pilot subcarriers. A node B may receive the request, estimate the complex channel gains for the pilot subcarriers based on received pilot symbols, and coherently demodulate received data symbols based on the channel gain estimates. The Node B may estimate the complex channel gains for the data subcarriers based on demodulated data symbols and derive a channel estimate for each UE antenna based on the channel gain estimates for the pilot and data subcarriers. The Node B may use the channel estimates for MIMO scheduling, subband scheduling, and rate selection.
摘要翻译：描述了在不消耗大量附加上行链路资源的情况下有效地导出上行链路信道估计的技术。每当UE希望在上行链路上发送数据时，用户设备（UE）可以在请求信道（REQCH）上发送上行链路资源的请求。 UE可以在一组子载波上从多个天线发送REQCH，例如在数据子载波上发送REQCH数据，并在导频子载波上导频。节点B可以接收该请求，基于接收到的导频符号估计导频子载波的复信道增益，并且基于信道增益估计来相干地解调所接收的数据符号。节点B可以基于解调的数据符号估计数据子载波的复信道增益，并且基于导频和数据子载波的信道增益估计导出每个UE天线的信道估计。节点B可以使用用于MIMO调度，子带调度和速率选择的信道估计。

3. 发明授权

US08081698B2 Method and apparatus for selection mechanism between OFDM-MIMO and LFDM-SIMO 有权
标题翻译： OFDM-MIMO与LFDM-SIMO之间的选择机制的方法和装置
公开(公告)号：US08081698B2
公开(公告)日：2011-12-20
申请号：US11770600
申请日：2007-06-28
申请人： Hao Xu , Byoung-Hoon Kim , Durga Prasad Malladi
发明人： Hao Xu , Byoung-Hoon Kim , Durga Prasad Malladi
IPC分类号： H04B7/02
CPC分类号： H04L1/0025 , H04B7/0689 , H04L1/0002 , H04L1/0021 , H04L27/2601 , H04L27/2614 , H04W52/245 , H04W52/367 , H04W52/42
摘要： Systems and methodologies are described that facilitate switching between various combinations of MIMO, SIMO, SISO and OFDM, LFDM and IFDM. According to various aspects, a method for a wireless communication network is provided that includes: receiving a first set of data information, wherein the first set of information comprising a first value, determining if the first value is above a threshold and transmitting an indication to switch to using a first transmission technique if determined that the first value is above the threshold.
摘要翻译：描述了促进MIMO，SIMO，SISO和OFDM，LFDM和IFDM的各种组合之间的切换的系统和方法。根据各方面，提供了一种用于无线通信网络的方法，包括：接收第一组数据信息，其中所述第一组信息包括第一值，确定所述第一值是否高于阈值，并将指示发送到如果确定第一值高于阈值，则切换到使用第一传输技术。

4. 发明授权

US09337962B2 Continuous mode operation for wireless communications systems 有权
标题翻译：无线通信系统的连续模式操作
公开(公告)号：US09337962B2
公开(公告)日：2016-05-10
申请号：US13029072
申请日：2011-02-16
申请人： Hao Xu , Madhavan S. Vajapeyam , Naga Bhushan , Wanshi Chen , Durga Prasad Malladi
发明人： Hao Xu , Madhavan S. Vajapeyam , Naga Bhushan , Wanshi Chen , Durga Prasad Malladi
IPC分类号： H04L1/16 , H04L1/18
CPC分类号： H04L1/1657 , H04L1/1854 , H04L1/1887
摘要： Certain aspects of the present disclosure propose techniques for a continuous communications mode in a wireless communications system. The technique may involve processing bundles of transmission time interval (TTI) transmissions having transmission times that are mapped to voice-over-internet-protocol (VOIP) arrival times, wherein the bundled TTI transmissions are processed without acknowledgements to indicate the bundled TTI transmissions have been successfully received.
摘要翻译：本公开的某些方面提出了用于无线通信系统中的连续通信模式的技术。该技术可以涉及处理具有映射到互联网协议（VOIP）到达时间的传输时间的传输时间间隔（TTI）传输束，其中，经过捆绑的TTI传输被处理而没有确认以指示捆绑的TTI传输具有已成功收到。

5. 发明授权

US08929230B2 Coordinated silent period with sounding reference signal (SRS) configuration 有权
标题翻译：具有探测参考信号（SRS）配置的协调静音期
公开(公告)号：US08929230B2
公开(公告)日：2015-01-06
申请号：US13084169
申请日：2011-04-11
申请人： Renqiu Wang , Durga Prasad Malladi , Hao Xu , Naga Bhushan , Yongbin Wei
发明人： Renqiu Wang , Durga Prasad Malladi , Hao Xu , Naga Bhushan , Yongbin Wei
IPC分类号： H04W52/24
CPC分类号： H04J11/005 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0073 , H04L27/2613
摘要： A method of wireless communication includes configuring a virtual SRS (sounding reference signal) transmission to prompt a user equipment (UE) to use a shortened uplink transmission format to create a silent period at an end of a subframe. Reports are received from the UE indicating interference observed during the silent period.
摘要翻译：一种无线通信方法包括配置虚拟SRS（探测参考信号）传输，以提示用户设备（UE）使用缩短的上行链路传输格式在子帧结束时创建无声时段。从UE接收到指示在静默期间观察到的干扰的报告。

6. 发明授权

US08750917B2 Multiplexing and power control of uplink control channels in a wireless communication system 有权
标题翻译：无线通信系统中上行控制信道的多路复用和功率控制
公开(公告)号：US08750917B2
公开(公告)日：2014-06-10
申请号：US12117457
申请日：2008-05-08
申请人： Hao Xu , Durga Prasad Malladi , Rachel Wang
发明人： Hao Xu , Durga Prasad Malladi , Rachel Wang
IPC分类号： H04W52/00
CPC分类号： H04L5/0051 , H04L5/0007 , H04L5/0016 , H04L5/0039 , H04L5/0053 , H04L5/0055 , H04L27/2613 , H04W52/16 , H04W52/241 , H04W52/325 , H04W52/48
摘要： Techniques for transmitting control information in a wireless communication system are described. The system may support acknowledgement (ACK) channels and channel quality indicator (CQI) channels, which may have different target signal-to-noise ratios (SNRs). The ACK and CQI channels from different user equipments (UEs) may be multiplexed on the same resource block. In one design, the transmit power of a CQI channel may be set to achieve a nominal target SNR for CQI when not multiplexed with the ACK channels and may be reduced to achieve a lower target SNR when multiplexed with the ACK channels. In another design, the transmit power of an ACK channel may be set to achieve a nominal target SNR for ACK when not multiplexed with the CQI channels and may be boosted to achieve a higher target SNR when multiplexed with the CQI channels. The CQI channel may randomly hop to mitigate performance degradation.
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。该系统可以支持可能具有不同的目标信噪比（SNR）的确认（ACK）信道和信道质量指示符（CQI）信道。来自不同用户设备（UE）的ACK和CQI信道可以被复用在相同的资源块上。在一种设计中，可以设置CQI信道的发射功率，以便在不与ACK信道进行多路复用时实现CQI的标称目标SNR，并且当与ACK信道多路复用时，可以减小目标SNR。在另一种设计中，可以将ACK信道的发射功率设置为在不与CQI信道进行多路复用时实现用于ACK的标称目标SNR，并且当与CQI信道进行多路复用时可以升高以实现更高的目标SNR。 CQI信道可以随机地跳过以减轻性能下降。

7. 发明申请

US20110195684A1 METHODS AND APPARATUS FOR INTERFERENCE DECREASE/CANCELLATION ON DOWNLINK ACQUISITION SIGNALS 有权
标题翻译：下行收购信号干扰降低/取消的方法和装置
公开(公告)号：US20110195684A1
公开(公告)日：2011-08-11
申请号：US12857195
申请日：2010-08-16
申请人： Xiaoxia Zhang , Durga Prasad Malladi , Yongbin Wei , Tao Luo , Hao Xu , Aleksandar Damnjanovic
发明人： Xiaoxia Zhang , Durga Prasad Malladi , Yongbin Wei , Tao Luo , Hao Xu , Aleksandar Damnjanovic
IPC分类号： H04B17/00
CPC分类号： H04L25/0202 , H04B1/7107 , H04J11/004 , H04J11/0069 , H04J11/0093 , H04L5/0023 , H04L25/0224
摘要： A method, an apparatus, and a computer program product for receiving a signal including components from a plurality of cells, estimating a channel from the received signal using one or more channel estimation schemes, removing a component signal using the estimated channel from the received signal to generate a processed signal and detecting a residual signal in the processed signal.
摘要翻译：一种用于从多个小区接收包括分量的信号的方法，装置和计算机程序产品，使用一个或多个信道估计方案从接收到的信号估计信道，使用来自接收信号的估计信道去除分量信号以产生经处理的信号并检测处理信号中的残留信号。

8. 发明申请

US20110170504A1 CONTINUOUS CDM/FDM STRUCTURE FOR LTE UPLINK DATA 有权
标题翻译：用于LTE上网数据的连续CDM / FDM结构
公开(公告)号：US20110170504A1
公开(公告)日：2011-07-14
申请号：US13004738
申请日：2011-01-11
申请人： Hao Xu , Durga Prasad Malladi , Yongbin Wei
发明人： Hao Xu , Durga Prasad Malladi , Yongbin Wei
IPC分类号： H04J1/00 , H04W72/04
CPC分类号： H04L5/00 , H04L5/0007 , H04L5/0044 , H04L5/0053 , H04L5/0064
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which information regarding use of a CDM and FDM structure for multiplexing data on a data channel for uplink for at least one subframe is determined. In addition, the data is multiplexed using the CDM/FDM structure for the at least one subframe based on the determined information.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品，其中确定了关于在至少一个子帧的上行链路的数据信道上复用数据的CDM和FDM结构的使用的信息。此外，基于所确定的信息，使用用于至少一个子帧的CDM / FDM结构来复用数据。

9. 发明申请

US20110141971A1 MECHANISMS FOR INFORMATION EXCHANGE ACROSS CELLS TO FACILITATE RECEPTION IN A HETEROGENEOUS NETWORK 审中-公开
标题翻译：信息交换的机制可促进异构网络中的接收
公开(公告)号：US20110141971A1
公开(公告)日：2011-06-16
申请号：US12816263
申请日：2010-06-15
申请人： Xiaoxia Zhang , Durga Prasad Malladi , Yongbin Wei , Tao Luo , Hao Xu
发明人： Xiaoxia Zhang , Durga Prasad Malladi , Yongbin Wei , Tao Luo , Hao Xu
IPC分类号： H04W4/00
CPC分类号： H04J11/004 , H04W84/045 , H04W92/20
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which a signal including a signal from a UE is received. System information of a neighboring eNodeB is obtained. The received signal is processed based on the system information in order to enhance the received signal with respect to the signal from the UE.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品，其中接收到包括来自UE的信号的信号。获得相邻eNodeB的系统信息。基于系统信息处理接收的信号，以便相对于来自UE的信号增强接收信号。

10. 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。

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