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41. 发明申请

US20190342826A1 PBCH CONTENT FOR NR UNLICENSED 审中-公开
公开(公告)号：US20190342826A1
公开(公告)日：2019-11-07
申请号：US16515704
申请日：2019-07-18
申请人： Salvatore Talarico , Carlos Aldana , Bishwarup Mondal , Jeongho Jeon , Dae Won Lee
发明人： Salvatore Talarico , Carlos Aldana , Bishwarup Mondal , Jeongho Jeon , Dae Won Lee
IPC分类号： H04W48/16 , H04L5/00 , H04W56/00 , H04W72/00
摘要： Systems and methods of providing timing information for initial access in an unlicensed band are described. A UE monitors a new radio discovery signal (NRDS-U) window in an unlicensed band for a DRS transmission that is constrained to be transmitted within the NRDS-U window. The UE determines initial access information, including an offset that indicates when the DRS transmission occurs within the NRDS-U window, and engages in initial access dependent on the offset. The offset is from a radio frame or half radio frame boundary or the start of the NRDS-U window. The offset is indicated in three least/most significant bits an SSB index or from an s1-offset field in a MIB of the SSB. When the base station uses a DFS channel, the base station transmits a periodic signal to emulate a radar signal.

42. 发明申请

US20190273578A1 METHODS OF ADAPTIVE TRANSMISSION IN LOW LATENCY SCENARIOS IN NEW RADIO (NR) SYSTEMS 审中-公开
公开(公告)号：US20190273578A1
公开(公告)日：2019-09-05
申请号：US16418768
申请日：2019-05-21
申请人： Jeongho Jeon , Gang Xiong , Bishwarup Mondal , Carlos Aldana , Hwan-Joon Kwon , Alexei Davydov , Seau S. Lim
发明人： Jeongho Jeon , Gang Xiong , Bishwarup Mondal , Carlos Aldana , Hwan-Joon Kwon , Alexei Davydov , Seau S. Lim
IPC分类号： H04L1/00 , H04W74/08 , H04W72/08 , H04B17/327 , H04B17/10
摘要： Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The gNB may encode multiple candidate code-block groups to be available for a transmission in unlicensed spectrum, wherein one of the candidate code-block groups is to be transmitted based on a listen-before-talk (LBT) process. Each of the candidate code-block groups may be mapped to a different subset of channels in the unlicensed spectrum. The gNB may determine, based on one or more channel measurements, one or more of the channels that are available for the transmission. The gNB may select, as the candidate code-block group to be transmitted, a candidate code-block group for which the subset of the channels that is mapped to the selected candidate code-block group is included in the one or more channels that are available for the transmission.

43. 发明授权

US08537763B2 Frame allocation to support legacy wireless communication protocols on uplink transmission 有权
标题翻译：支持上行链路传输的传统无线通信协议的帧分配
公开(公告)号：US08537763B2
公开(公告)日：2013-09-17
申请号：US12487171
申请日：2009-06-18
申请人： Fan Wang , Mark C. Cudak , Amitabha Ghosh , Tzu-Chung F. Hsieh , Bishwarup Mondal
发明人： Fan Wang , Mark C. Cudak , Amitabha Ghosh , Tzu-Chung F. Hsieh , Bishwarup Mondal
IPC分类号： H04W4/00 , H04J3/16
CPC分类号： H04L5/0094 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L27/2647
摘要： A frame (200) and a method for allocating resources that is used in a wireless communication network is provided. The frame includes a first subframe (202) concatenated to a second subframe (204). A first portion (206) of the first subframe allocated for a control channel of a first protocol. A second portion (208) of the first subframe and the second subframe are allocated for a data channel for the first protocol. In an embodiment second portion of the first subframe and the second subframe are allocated for a data channel of the second protocol that are multiplexed with the data channel of the first protocol using frequency division multiplexing (FDM).
摘要翻译：提供了一种帧（200）和用于分配在无线通信网络中使用的资源的方法。帧包括级联到第二子帧（204）的第一子帧（202）。分配给第一协议的控制信道的第一子帧的第一部分（206）。第一子帧和第二子帧的第二部分（208）被分配用于第一协议的数据信道。在一个实施例中，第一子帧和第二子帧的第二部分被分配用于使用频分复用（FDM）与第一协议的数据信道复用的第二协议的数据信道。

44. 发明申请

US20130231939A1 COMPUTATIONALLY EFFICIENT AUDIO CODER 有权
公开(公告)号：US20130231939A1
公开(公告)日：2013-09-05
申请号：US13848422
申请日：2013-03-21
申请人： K. P. P. Kalyan Chakravarthy , Navaneetha K. Ruthramoorthy , Pushkar P. Patwardhan , Bishwarup Mondal
发明人： K. P. P. Kalyan Chakravarthy , Navaneetha K. Ruthramoorthy , Pushkar P. Patwardhan , Bishwarup Mondal
IPC分类号： G10L19/008
CPC分类号： G10L19/00 , G10L19/002 , G10L19/008 , G10L19/02 , G10L19/025 , H04L1/0039 , H04L25/0262
摘要： The present invention provides a computationally efficient technique for compression encoding of an audio signal, and further provides a technique to enhance the sound quality of the encoded audio signal. This is accomplished by including more accurate attack detection and a computationally efficient quantization technique. The improved audio coder converts the input audio signal to a digital audio signal. The audio coder then divides the digital audio signal into larger frames having a long-block frame length and partitions each of the frames into multiple short-blocks. The audio coder then computes short-block audio signal characteristics for each of the partitioned short-blocks based on changes in the input audio signal. The audio coder further compares the computed short-block characteristics to a set of threshold values to detect presence of an attack in each of the short-blocks and changes the long-block frame length of one or more short-blocks upon detecting the attack in the respective one or more short-blocks.

45. 发明申请

US20110243262A1 METHOD AND APPARATUS FOR CHANNEL SOUNDING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM 有权
标题翻译：正交频分复用通信系统中信道的方法与装置
公开(公告)号：US20110243262A1
公开(公告)日：2011-10-06
申请号：US12848448
申请日：2010-08-02
申请人： Rapeepat Ratasuk , Amitabha Ghosh , Bishwarup Mondal
发明人： Rapeepat Ratasuk , Amitabha Ghosh , Bishwarup Mondal
IPC分类号： H04K1/10
CPC分类号： H04L5/003 , H04L27/261
摘要： An Orthogonal Frequency Division Multiplexing communication system is provided that triggers a transmission of an uplink sounding signal by use of a Downlink Control Information (DCI) message. In various embodiments of the invention, the DCI message may be used to individually trigger an uplink sounding signal by a single user equipment or may be used to trigger an uplink sounding signal by a group of users equipment.
摘要翻译：提供了一种通过使用下行链路控制信息（DCI）消息来触发上行链路探测信号的传输的正交频分复用通信系统。在本发明的各种实施例中，DCI消息可以用于单个用户设备单独地触发上行链路探测信号，或者可以用于一组用户设备触发上行链路探测信号。

46. 发明申请

US20100142462A1 PASSIVE COORDINATION IN A CLOSED LOOP MULTIPLE INPUT MULTIPLE OUT PUT WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：封闭式多路输入多路输出无线通信系统中的被动协调
公开(公告)号：US20100142462A1
公开(公告)日：2010-06-10
申请号：US12561377
申请日：2009-09-17
申请人： Fan Wang , Amitabha Ghosh , Bishwarup Mondal
发明人： Fan Wang , Amitabha Ghosh , Bishwarup Mondal
IPC分类号： H04W72/00
CPC分类号： H04B7/0417 , H04B7/024 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04L5/0021 , H04L25/0202 , H04L25/0204 , H04L25/0228 , H04L25/0248 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03808 , H04W16/28 , H04W24/10 , H04W28/16
摘要： A system and method for passive coordination of base stations in a closed-loop multiple-input multiple-output wireless communication system, includes a first step 400 of allocating a subframe zone to be used by a serving base station and a neighboring base station to provide synchronized communications. A next step 402 includes defining at least one beam combination for the base stations, the beam combination to be used over at least one resource block of the allocated zone. A next step 406 includes reporting feedback on measured channel conditions for the zone at a first time for the at least one beam combination and associated resource block of the zone. A next step 408 includes providing synchronized communications using the feedback by the base stations over the zone at a second time by repeating the same associated at least one beam combination and associated resource block of the zone.
摘要翻译：一种用于闭环多输入多输出无线通信系统中的基站的被动协调的系统和方法，包括：分配由服务基站和相邻基站使用的子帧区域的第一步骤400，以提供同步通讯。下一步骤402包括为基站定义至少一个波束组合，该波束组合将被用于所分配区域的至少一个资源块。下一步骤406包括针对该区域的至少一个波束组合和相关联的资源块第一时间报告该区域的测量信道状况的反馈。下一步骤408包括通过重复该区域的相同的相关联的至少一个波束组合和相关联的资源块，在第二时间使用基站在该区域上的反馈来提供同步通信。

47. 发明申请

US20090274226A1 SOUNDING CHANNEL BASED FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的基于通道的反馈
公开(公告)号：US20090274226A1
公开(公告)日：2009-11-05
申请号：US12420092
申请日：2009-04-08
申请人： Bishwarup Mondal , Amitabha Ghosh , Fan Wang
发明人： Bishwarup Mondal , Amitabha Ghosh , Fan Wang
IPC分类号： H04L27/28 , H04B1/00
CPC分类号： H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L25/0228 , H04L25/03343 , H04L27/2613 , H04L2025/03808
摘要： An apparatus and method for providing sounding channel based feedback in an OFDM communication system includes a first step (400) of defining a sounding channel spread out over multiple OFDM symbols within a frame. A next step (402) includes conveying a message to a subscriber station including information about the sounding channel. A next step (404) includes requesting a sounding waveform from the subscriber station. A next step (408) includes sending the sounding waveform from the subscriber station over the multiple OFDM symbols. A next step (410) includes sending a downlink transmission weighted in response to the sounding waveform.
摘要翻译：一种用于在OFDM通信系统中提供基于探测信道的反馈的装置和方法包括：第一步骤（400），其定义在帧内的多个OFDM符号上扩展的探测信道。下一步骤（402）包括将消息传送到订户站，包括关于探测信道的信息。下一步骤（404）包括从用户站请求探测波形。下一步骤（408）包括通过多个OFDM符号从用户站发送探测波形。下一步骤（410）包括响应于探测波形发送加权的下行链路传输。

48. 发明公开

US20240154658A1 BEAMFORMING AND INTERFERENCE MITIGATION TECHNIQUES FOR MASSIVE MIMO UPLINK AND DOWNLINK IN O-RAN 7-2 COMPATIBLE BASE STATIONS 审中-公开
公开(公告)号：US20240154658A1
公开(公告)日：2024-05-09
申请号：US17979397
申请日：2022-11-02
申请人： Neelam Chandwani , Thushara Hewavithana , Peng Lu , Bishwarup Mondal , Avik Sengupta , Michael Beadle , Ranjit Cavatur
发明人： Neelam Chandwani , Thushara Hewavithana , Peng Lu , Bishwarup Mondal , Avik Sengupta , Michael Beadle , Ranjit Cavatur
IPC分类号： H04B7/06 , H04L5/00
CPC分类号： H04B7/0617 , H04L5/0051
摘要： An apparatus for use in an O-RAN base station includes processing circuitry. To configure the O-RAN base station for signal processing in an O-RAN network, the processing circuitry is to decode an SRS and a DMRS in a UL stream received from at least one UE. Channel estimation is performed based on the SRS to obtain a channel estimate matrix of channel estimates associated with reception of the UL stream. A noise covariance is generated using the DMRS. Beamforming weights are determined using the channel estimate matrix and the noise covariance. Beamforming is performed on UL data corresponding to the UL stream to generate beamformed data streams. The beamforming is based on applying the beamforming weights to the UL data.

49. 发明申请

US20210136800A1 PDSCH RATE MATCHING AROUND SSB FOR NR UNLICENSED SPECTRUM OPERATION 有权
公开(公告)号：US20210136800A1
公开(公告)日：2021-05-06
申请号：US17145639
申请日：2021-01-11
申请人： Yingyang Li , Gang Xiong , Bishwarup Mondal , Dae Won Lee
发明人： Yingyang Li , Gang Xiong , Bishwarup Mondal , Dae Won Lee
IPC分类号： H04W72/12 , H04W48/10 , H04W72/00 , H04W72/04
摘要： A generation-Node B (gNB) configured for unlicensed spectrum operation above 52.6 GHz in a fifth-generation new-radio (NR) system (5GS) may encode a parameter (e.g., ssb-PositionsInBurst) for transmission to a UE (e.g., in the SIM or UE specific RRC signalling). The parameter may indicate candidate positions of synchronization signal blocks (SSBs) within a discovery reference signal (DRS) measurement timing configuration (DMTC) transmission window within slots of a system frame (SFN). During the DMTC window, the gNB may perform a LBT procedure on an unlicensed carrier of the unlicensed spectrum to determine if the unlicensed carrier is available. When the LBT is successful (i.e., the unlicensed carrier is available), the gNB may encode a discovery reference signal (DRS) for transmission on the unlicensed carrier. The DRS may include one or more of the SSBs transmitted during the candidate positions that fall within the DRS. The gNB may perform rate matching around the SSBs for a scheduled PDSCH based on the indicated parameter and transmit the rate-matched PDSCH.

50. 发明授权

US08798021B2 Hierarchical network and interference management 有权
标题翻译：分层网络和干扰管理
公开(公告)号：US08798021B2
公开(公告)日：2014-08-05
申请号：US13422459
申请日：2012-03-16
申请人： Nitin Mangalvedhe , Amitabha Ghosh , Bishwarup Mondal , Rapeepat Ratasuk
发明人： Nitin Mangalvedhe , Amitabha Ghosh , Bishwarup Mondal , Rapeepat Ratasuk
IPC分类号： H04W4/00
CPC分类号： H04W24/02
摘要： The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for network management through a hierarchical architecture with a control functionality of a network server (e.g., C-SON) in relationship to clusters comprising eNBs (access points), and for implementing coordinated multi-point (CoMP) transmission and reception in conjunction with inter-cell interference coordination (ICIC) in wireless networks such as LTE wireless networks. In particular, embodiments of the invention describe control and coordination mechanisms among the network elements for different network architectures and use-case scenarios. Such mechanisms may be managed by a centralized self-organizing network controller such as C-SON and hierarchically via localized controllers (such as cluster coordinators) residing in macro eNBs depending on system architectural constraints and network state. A fault-tolerant mechanism then may be defined to recover from failure of controlling sub-elements so that the network remains stable at all times.
摘要翻译：说明书和附图提出了一种用于网络管理的新方法，装置和软件相关产品（例如，计算机可读存储器），其通过具有与包括eNB的集群相关联的网络服务器（例如，C-SON）的控制功能的分级架构（接入点），并且用于在诸如LTE无线网络的无线网络中结合小区间干扰协调（ICIC）来实现协调的多点（CoMP）发送和接收。特别地，本发明的实施例描述了用于不同网络架构和用例场景的网络元件之间的控制和协调机制。这样的机制可以由诸如C-SON的集中式自组织网络控制器管理，并且根据系统架构约束和网络状态分层地经由驻留在宏eNB中的集中式控制器（例如集群协调器）来管理。然后可以定义容错机制以从控制子元件的故障中恢复，使得网络始终保持稳定。

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