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    • 92. 发明申请
    • METHODS AND SYSTEMS FOR PDCCH BLIND DECODING IN MOBILE COMMUNICATIONS
    • 用于移动通信中的PDCCH盲解码的方法和系统
    • US20090168922A1
    • 2009-07-02
    • US12259798
    • 2008-10-28
    • Durga Prasad MalladiJuan MontojoSandip Sarkar
    • Durga Prasad MalladiJuan MontojoSandip Sarkar
    • H04L27/00
    • H04L1/0038H04W72/042
    • Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.
    • 描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。 对可能的CCE组合的几种形式进行了调查和调查。 基于PDCCH大小估计/信息,可以得出最有可能(有限集合)的CCE级联。 还设计了基于树的级联,使用最大的CCE排序来将较小的CCE大小对准到类似的边界。 通过这样的排序,所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。 也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。 还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。
    • 93. 发明申请
    • EFFICIENT SYSTEM IDENTIFICATION SCHEMES FOR COMMUNICATION SYSTEMS
    • 高效的通信系统识别方案
    • US20090129298A1
    • 2009-05-21
    • US12248303
    • 2008-10-09
    • Tao LuoDurga Prasad MalladiJuan MontojoPeter GaalSandip Sarkar
    • Tao LuoDurga Prasad MalladiJuan MontojoPeter GaalSandip Sarkar
    • H04J3/02H04L5/14
    • H04W48/12H04J11/0069H04L27/2602H04W56/001
    • Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
    • 描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。 例如,无线电帧中的PSC和SSC的相对位置可以是参数的函数。 此外,可以基于参数来选择用于生成PSC的PSC序列。 此外,从无线电帧中包含或排除PSC可以是参数的函数。 另外或替代地,伪随机序列映射(例如,到小区ID,音调位置)可以是参数的函数。 示例性参数可以是基站是TDD或FDD系统的一部分,无线电帧是使用FS1还是FS2,基站是与宏还是毫微微小区相关联,还是基站是否与 单播或多播系统。
    • 94. 发明申请
    • ARRANGEMENT AND METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEMS
    • 无线通信系统中发送控制信息的安排和方法
    • US20090110038A1
    • 2009-04-30
    • US12258782
    • 2008-10-27
    • Juan MontojoDurga Prasad Malladi
    • Juan MontojoDurga Prasad Malladi
    • H04B3/36
    • H04L5/0053H04L1/0026H04L1/003H04L1/1671H04L1/1858H04L5/0007H04L5/0064H04L5/0091
    • Systems and methodologies are described that facilitate arrangement and transmission of control information in a wireless communication system. As described herein, a scheduled transmission of acknowledgement (ACK) signaling and channel quality information (CQI) signaling in a common subframe can be adapted for network implementations with limited link budget wherein ACK signaling is configured for repetition over multiple subframes to ensure a desired error rate level for the ACK signaling. To these ends, various aspects described herein facilitate modification of a coding rate applied to ACK signaling to be transmitted with data based on a repetition factor of the ACK signaling. Additionally and/or alternatively, various aspects described herein facilitate dropping of CQI signaling and transmission of only ACK signaling on subframes where CQI and ACK signaling are to be transmitted substantially simultaneously and ACK transmission is configured for repetition over multiple subframes.
    • 描述了有助于无线通信系统中的控制信息的布置和传输的系统和方法。 如本文所描述的,在公共子帧中的确认(ACK)信令和信道质量信息(CQI)信令的调度传输可以适用于具有有限链路预算的网络实现,其中ACK信令被配置为在多个子帧上重复以确保期望的误差 ACK信令的速率级别。 为此,本文描述的各个方面有助于修改应用于基于ACK信令的重复因素的数据传送的ACK信令的编码率。 附加地和/或替代地,本文描述的各个方面有助于丢弃CQI信令,并且仅在基本上同时发送CQI和ACK信令的子帧上发送ACK信令,并且将ACK传输配置为在多个子帧上进行重复。
    • 95. 发明申请
    • UPLINK POWER CONTROL FOR LTE
    • LTE上网功率控制
    • US20080280638A1
    • 2008-11-13
    • US12030787
    • 2008-02-13
    • Durga Prasad MalladiJuan Montojo
    • Durga Prasad MalladiJuan Montojo
    • H04Q7/20H04B1/38H04B17/00
    • H04W52/08H04W52/146H04W52/362H04W52/54
    • Systems and methodologies are described that facilitate employing aperiodic closed loop power control corrections in a Long Term Evolution (LTE) based wireless communication environment. An aperiodic power control command can be sent over a downlink to control and/or correct an uplink power level employed by an access terminal. Transmission of the aperiodic power control can be triggered by a measurement (e.g., received power being outside a set margin, . . . ). The aperiodic power control command can include a single-bit and/or a multi-bit correction. Further, the access terminal can alter the uplink power level employed for subsequent uplink transmissions based upon the aperiodic power control command when received. Additionally, regardless whether the aperiodic power control command is received at a given time over the downlink, the access terminal can employ periodic power control commands and an open loop power control mechanism to adjust the uplink power level.
    • 描述了有助于在基于长期演进(LTE)的无线通信环境中采用非周期闭环功率控制校正的系统和方法。 可以通过下行链路发送非周期功率控制命令,以控制和/或校正接入终端采用的上行链路功率电平。 非周期性功率控制的传输可以通过测量(例如,接收功率在设定余量之外,...)来触发。 非周期功率控制命令可以包括单位和/或多位校正。 此外,接入终端可以基于接收到的非周期功率控制命令来改变用于后续上行链路传输的上行链路功率电平。 此外,无论在下行链路上的给定时间是否接收到非周期性功率控制命令,接入终端可以采用周期性功率控制命令和开环功率控制机制来调整上行链路功率电平。
    • 96. 发明申请
    • PREAMBLE BASED UPLINK POWER CONTROL FOR LTE
    • 用于LTE的基于前置的UPLINK功率控制
    • US20080207150A1
    • 2008-08-28
    • US12030333
    • 2008-02-13
    • Durga Prasad MalladiJuan Montojo
    • Durga Prasad MalladiJuan Montojo
    • H04B1/02
    • H04W52/10H04L5/0048H04W52/08H04W52/44H04W72/14H04W88/08
    • Systems and methodologies are described that facilitate utilizing power control preambles with closed loop power control techniques in a wireless communication environment. An uplink grant can be transferred over a downlink (e.g., a first uplink grant after uplink inactivity), and a power control preamble can be sent over an uplink in response to the uplink grant. According to an example, transmission of the power control preamble can be explicitly scheduled and/or implicitly scheduled. The power control preamble can be transmitted at a power level determined by an access terminal utilizing an open loop power control mechanism. A base station can analyze the power control preamble and generate a power control command based thereupon to correct the power level employed by the access terminal. The access terminal can thereafter utilize the power control command to adjust the power level for uplink data transmission.
    • 描述了在无线通信环境中便利利用具有闭环功率控制技术的功率控制前导码的系统和方法。 可以通过下行链路(例如,上行链路不活动之后的第一上行链路许可)来传送上行链路许可,并且响应于上行链路许可,可以通过上行链路发送功率控制前导码。 根据一个示例,可以明确地调度和/或隐式调度功率控制前导码的传输。 功率控制前置码可以利用开环功率控制机制由接入终端确定的功率电平进行传输。 基站可以分析功率控制前同步码,并基于此来生成功率控制命令,以便校正接入终端所采用的功率电平。 接入终端此后可利用功率控制命令来调整上行数据传输的功率电平。
    • 99. 发明授权
    • Method and apparatus for control and data multiplexing in a MIMO communication system
    • 用于MIMO通信系统中的控制和数据复用的方法和装置
    • US09236985B2
    • 2016-01-12
    • US12764871
    • 2010-04-21
    • Wanshi ChenXiaoxia ZhangJuan MontojoDurga Prasad Malladi
    • Wanshi ChenXiaoxia ZhangJuan MontojoDurga Prasad Malladi
    • H04W4/00H04L5/00H04L1/06H04B7/04H04B7/06H04L1/00H04L1/18
    • H04L5/0044H04B7/0404H04B7/0689H04L1/007H04L1/06H04L1/1812H04L5/0053
    • Systems and methodologies are described herein that facilitate control and data multiplexing for uplink (UL) multiple-input-multiple-output (MIMO) communication within a wireless communication system. As described herein, a device conducting uplink MIMO communication in a wireless communication system can multiplex control signaling and data across one or more of a plurality of layers (e.g., corresponding to spatial layers, codewords, etc.) associated with an uplink transmission. Techniques are described herein for selecting layers of a transmission on which to schedule control signaling and selecting offsets to apply to the control signaling scheduled on selected layers. Further, techniques are described herein for leveraging a multi-layer transmission to increase the efficiency of acknowledgement communication. In addition, techniques are described for selecting a modulation and coding scheme (MCS) to apply to control signaling that is combined with data in an uplink multi-layer transmission.
    • 本文描述了便于无线通信系统内的上行链路(UL)多输入多输出(MIMO)通信的控制和数据多路复用的系统和方法。 如本文所述,在无线通信系统中进行上行链路MIMO通信的设备可以跨越与上行链路传输相关联的多个层(例如,对应于空间层,码字等)中的一个或多个层来复用控制信令和数据。 这里描述了用于选择传输的层的技术,其中调度控制信令和选择偏移以应用于在所选择的层上调度的控制信令。 此外,本文描述了用于利用多层传输来提高确认通信的效率的技术。 此外,描述了用于选择适用于与上行链路多层传输中的数据组合的控制信令的调制和编码方案(MCS)的技术。
    • 100. 发明授权
    • Efficient system identification schemes for communication systems
    • 通信系统的高效系统识别方案
    • US09119132B2
    • 2015-08-25
    • US12248303
    • 2008-10-09
    • Tao LuoDurga Prasad MalladiJuan MontojoPeter GaalSandip Sarkar
    • Tao LuoDurga Prasad MalladiJuan MontojoPeter GaalSandip Sarkar
    • H04J3/06H04W48/12H04J11/00H04L27/26
    • H04W48/12H04J11/0069H04L27/2602H04W56/001
    • Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
    • 描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。 例如,无线电帧中的PSC和SSC的相对位置可以是参数的函数。 此外,可以基于参数来选择用于生成PSC的PSC序列。 此外,从无线电帧中包含或排除PSC可以是参数的函数。 另外或替代地,伪随机序列映射(例如,到小区ID,音调位置)可以是参数的函数。 示例性参数可以是基站是TDD或FDD系统的一部分,无线电帧是使用FS1还是FS2,基站是与宏还是毫微微小区相关联,还是基站是否与 单播或多播系统。