公开(公告)号：US20230388997A1

公开(公告)日：2023-11-30

申请号：US18232208

申请日：2023-08-09

申请人： Bishwarup Mondal ,  Avik Sengupta ,  Dong Han

发明人： Bishwarup Mondal ,  Avik Sengupta ,  Dong Han

IPC分类号： H04W72/12 ,  H04W72/232 ,  H04W72/21

CPC分类号： H04W72/12 ,  H04W72/232 ,  H04W72/21

摘要： A computer-readable storage medium stores instructions for execution by one or more processors of a UE to configure the UE for UL STxMP. Multiple CSI-RS transmissions originating from a base station are decoded. The multiple CSI-RS transmissions include a first CSI-RS received at a first UE antenna panel from a first TRP of the base station and a second CSI-RS received at a second UE antenna panel from a second TRP of the base station. A first RSRP measurement corresponding to the first CSI-RS and a second RSRP measurement corresponding to the second CSI-RS are determined. A CSI report including the first RSRP measurement with a panel ID of the first UE antenna panel and the second RSRP measurement with a panel ID of the second UE antenna panel is encoded for transmission to the base station.

公开(公告)号：US20210022096A1

公开(公告)日：2021-01-21

申请号：US17063874

申请日：2020-10-06

申请人： Prerana Rane ,  Yongjun Kwak ,  Bishwarup Mondal

发明人： Prerana Rane ,  Yongjun Kwak ,  Bishwarup Mondal

IPC分类号： H04W56/00 ,  H04W76/27 ,  H04L1/16 ,  H04W72/00 ,  H04L5/10 ,  H04W16/28 ,  H04W48/16 ,  H04L5/00 ,  H04W74/00

摘要： An apparatus for use in a UE includes processing circuitry coupled to a memory. To configure the UE for SSB processing in a 5G-NR network, the processing circuitry is to decode a MIB and a SIB received from a gNB. An RRC IE within the SIB is obtained. The RRC IE includes a bitmap associated with an SSB transmission pattern, where a length of the bitmap indicates a number of beams used within a cell of the gNB. SSB indices corresponding to candidate SSB positions within a discovery reference signal (DRS) transmission duration are determined based on the number of beams. Synchronization with the cell of the to gNB is performed using SSBs received within the DRS transmission duration, the SSBs selected based on the determined SSB indices.

公开(公告)号：US08351544B2

公开(公告)日：2013-01-08

申请号：US12334917

申请日：2008-12-15

申请人： Bishwarup Mondal ,  Amitabha Ghosh ,  Fan Wang

发明人： Bishwarup Mondal ,  Amitabha Ghosh ,  Fan Wang

IPC分类号： H04L27/00

CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/0639 ,  H04L5/0007 ,  H04L25/03343

摘要： A method and apparatus are provided for feedback for closed-loop transmitting with multiple transmit antenna elements and multiple receive antenna elements. A base station includes a codebook containing sets of weightings for the multiple transmit antenna elements, with each set of weightings identified by an index and the codebook known to the base station and a served mobile station (MS). The base station pre-codes pilot signals using a precoding matrix, preferably a unitary matrix, to produce pre-coded pilot signals, which precoding matrix may or may not be known to the MS and which precoding matrix may or may not be included in the codebook. The base station then transmits the pre-coded pilot signals to the MS via the multiple transmit antenna elements and, in response, receives an index to a set of weightings in the codebook for use in a subsequent transmission of a data stream.

摘要翻译： 提供了一种用于具有多个发射天线元件和多个接收天线元件的闭环发射的反馈的方法和装置。 基站包括码本，其包含多个发射天线单元的加权集合，每一组加权由索引和基站已知的码本和被服务的移动台（MS）标识。 基站使用预编码矩阵，优选地是酉矩阵来预编码导频信号，以产生预编码的导频信号，预编码矩阵可以是MS也可以不是已知的，并且哪个预编码矩阵可以或可以不包括在 码本。 然后，基站经由多个发送天线元件向MS发送预先编码的导频信号，作为响应，接收到码本中的一组加权的索引，用于数据流的后续发送。

公开(公告)号：US20100046643A1

公开(公告)日：2010-02-25

申请号：US12193820

申请日：2008-08-19

申请人： Bishwarup Mondal ,  Amitabha Ghosh ,  Fan Wang

发明人： Bishwarup Mondal ,  Amitabha Ghosh ,  Fan Wang

IPC分类号： H04L27/28

CPC分类号： H04L25/03343 ,  H04L5/0023 ,  H04L5/0048 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03808

摘要： An apparatus and method to feedforward non-quantized precoding weights in an OFDM communication system includes a first step (300) of sending feedback information from a subscriber station (SS) to a base station (BS). A next step (302) includes deriving non-quantized weight information from the feedback information. A next step (304) includes transmitting symbols carrying the non-quantized weight information and non-precoded pilot symbols by the BS. A next step (305) includes receiving the information and symbols by the SS. A next step (306) includes estimating the non-quantized weights from the symbols carrying the non-quantized weight information and the non-precoded pilot symbols by the SS. A next step (308) includes decoding data from the BS by the SS using the estimated non-quantized weight information.

摘要翻译： 一种用于在OFDM通信系统中前馈非量化预编码权重的装置和方法包括从用户站（SS）向基站（BS）发送反馈信息的第一步骤（300）。 下一步骤（302）包括从反馈信息中导出非量化的权重信息。 下一步骤（304）包括由BS发送携带非量化权重信息和非预编码导频符号的符号。 下一步骤（305）包括由SS接收信息和符号。 下一步骤（306）包括通过SS从携带非量化权重信息和非预编码导频符号的符号估计非量化权重。 下一步骤（308）包括使用估计的非量化权重信息从SS对来自BS的数据进行解码。

公开(公告)号：US20230179269A1

公开(公告)日：2023-06-08

申请号：US17545688

申请日：2021-12-08

申请人： Alexei Davydov ,  Bishwarup Mondal ,  Artyom Putilin ,  Victor Sergeev

发明人： Alexei Davydov ,  Bishwarup Mondal ,  Artyom Putilin ,  Victor Sergeev

IPC分类号： H04B7/0452 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00

CPC分类号： H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0456 ,  H04L5/0048

摘要： An apparatus for a base station configured for operation in a C-RAN includes processing circuitry coupled to a memory. To configure the base station for multi-user multiple input multiple output (MU-MIMO) signal processing, the processing circuitry is to decode a plurality of sounding reference signals received from a corresponding plurality of UEs via a corresponding plurality of channels. The plurality of channels are estimated based on the plurality of sounding reference signals. A beamforming matrix is determined based on a channel matrix corresponding to the plurality of channels. Beamforming is performed on a plurality of uplink (UL) data streams received from the plurality of UEs, to generate a plurality of beamformed streams. The beamforming is based on the beamforming matrix. Interference suppression is performed on the plurality of beamformed streams to generate a plurality of output data streams. The interference suppression is based on non-orthogonal DMRSs received from the UEs.

公开(公告)号：US20190281587A1

公开(公告)日：2019-09-12

申请号：US16406594

申请日：2019-05-08

申请人： Yushu Zhang ,  Guotong Wang ,  Gang Xiong ,  Bishwarup Mondal ,  Alexei Davydov

发明人： Yushu Zhang ,  Guotong Wang ,  Gang Xiong ,  Bishwarup Mondal ,  Alexei Davydov

IPC分类号： H04W72/04 ,  H04W72/10

摘要： Systems, apparatuses, methods, and computer-readable media are provided for selecting a TCI-State for receiving downlink transmissions. In one example a processor/UE is configured to determine one or more candidate TCIs for a downlink slot; determine a scheduling offset between a physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH); prioritize the candidate TCIs based on the scheduling offset; identify a highest priority candidate TCI; and select the highest priority candidate TCI for receiving the PDSCH.

公开(公告)号：US08665806B2

公开(公告)日：2014-03-04

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： H04W4/00 ,  H04B7/14

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。

公开(公告)号：US20130242748A1

公开(公告)日：2013-09-19

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： H04L12/26

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： 本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），以及在诸如LTE无线网络的无线网络中结合小区间干扰协调（ICIC）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）进行管理。 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。

公开(公告)号：US20120069925A1

公开(公告)日：2012-03-22

申请号：US13301953

申请日：2011-11-22

申请人： Bishwarup Mondal ,  Robert M. Harrison ,  Timothy A. Thomas

发明人： Bishwarup Mondal ,  Robert M. Harrison ,  Timothy A. Thomas

IPC分类号： H04B7/02

CPC分类号： H04B7/0417 ,  H04B7/0465 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/066

摘要： A method an apparatus is described for providing feedback for closed-loop transmitting with multiple transmit and receive antennas. The method includes a first step 900 of providing a codebook containing sets of weightings for each data stream of the multiple transmit antennas with each set identified by an index known to a transmitter and a receiver. The same codebook is utilized for any number of data streams up to the number of transmit antennas. A next step 902 includes measuring a composite channel between the transmitter and receiver. A next step 904 includes determining at least one performance metric for each set of weightings in the codebook. A next step 906 includes selecting preferred weightings for each data stream in response to the performance metrics. A next step 908 includes feeding back an index of the preferred weightings to the transmitter for use in subsequent transmissions.

摘要翻译： 描述了一种用于提供用于具有多个发射和接收天线的闭环发射的反馈的装置的方法。 该方法包括第一步骤900，其提供包含多个发射天线的每个数据流的权重集的码本，每个集合由发射机和接收机已知的索引识别。 相同的码本被用于直到发射天线数量的任何数量的数据流。 下一步骤902包括测量发射机和接收机之间的复合信道。 下一步骤904包括确定码本中每一组加权的至少一个性能度量。 下一步骤906包括响应于性能度量为每个数据流选择优选权重。 接下来的步骤908包括将优先权重的索引反馈到发射机以用于随后的传输。

公开(公告)号：US08107544B2

公开(公告)日：2012-01-31

申请号：US12060301

申请日：2008-04-01

申请人： Bishwarup Mondal ,  Robert M. Harrison ,  Timothy A. Thomas

发明人： Bishwarup Mondal ,  Robert M. Harrison ,  Timothy A. Thomas

IPC分类号： H04K1/10

CPC分类号： H04B7/0417 ,  H04B7/0465 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/066

摘要： A method an apparatus is described for providing feedback for closed-loop transmitting with multiple transmit and receive antennas. The method includes a first step 900 of providing a codebook containing sets of weightings for each data stream of the multiple transmit antennas with each set identified by an index known to a transmitter and a receiver. The same codebook is utilized for any number of data streams up to the number of transmit antennas. A next step 902 includes measuring a composite channel between the transmitter and receiver. A next step 904 includes determining at least one performance metric for each set of weightings in the codebook. A next step 906 includes selecting preferred weightings for each data stream in response to the performance metrics. A next step 908 includes feeding back an index of the preferred weightings to the transmitter for use in subsequent transmissions.

摘要翻译： 描述了一种用于提供用于具有多个发射和接收天线的闭环发射的反馈的装置的方法。 该方法包括第一步骤900，其提供包含多个发射天线的每个数据流的权重集的码本，每个集合由发射机和接收机已知的索引识别。 相同的码本被用于直到发射天线数量的任何数量的数据流。 下一步骤902包括测量发射机和接收机之间的复合信道。 下一步骤904包括确定码本中每一组加权的至少一个性能度量。 下一步骤906包括响应于性能度量为每个数据流选择优选权重。 接下来的步骤908包括将优先权重的索引反馈到发射机以用于随后的传输。