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1.发明申请公开(公告)号：US20180367196A1
公开(公告)日：2018-12-20
申请号：US15770989
申请日：2016-11-24
发明人： Sairamesh Nammi , Namir Lidian
IPC分类号： H04B7/0456 , H04L25/03 , H04B7/06
摘要： Efficient techniques to signal codebook subset restriction bit maps are provided. In some embodiments, a method of operation of a node of a cellular communications network includes determining a codebook restriction for a wireless device. The codebook restriction reduces a full codebook of the wireless device to a reduced codebook. The method also includes providing the codebook restriction to the wireless device with an indication of one or more ranks to which the codebook restriction applies. In some embodiments, this enables reduced signaling overhead from upper layers, improving the throughput of data traffic channels. This may also enable reduced RRC signaling message failures and also reduced latency.
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公开(公告)号：US11522568B2
公开(公告)日：2022-12-06
申请号：US16977087
申请日：2018-03-29
发明人： Namir Lidian , Bo Göransson , Erik Larsson
摘要： A mechanism for identifying a low performing radio branch at a radio transceiver device. A method is performed by the radio transceiver device that comprises transmitting a reference signal for at least some of the N radio branches in a respective test period. The reference signal in each test period is transmitted according to a test configuration that specifies that during each test period the reference signal is mapped to only one of the N radio branches such that in test period k, where k=1, . . . , N, the reference signal is only transmitted from radio branch k. The method comprises receiving at least one report from another radio transceiver device relating to measurements made by this so-called another radio transceiver device on the reference signal transmitted for these at least some of the N radio branches to identify which of the N radio branches is the low performing one.
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公开(公告)号：US10367559B2
公开(公告)日：2019-07-30
申请号：US15777343
申请日：2016-04-19
发明人： Namir Lidian , SaiRamesh Nammi
IPC分类号： H04B7/0456 , H04L25/03 , H04B7/06 , H04B7/26
摘要： Embodiments herein relate to a method, performed by a network node, for reducing a higher layer signaling overhead in multi antenna wireless communication systems. The network node operates in a communication network, which communication network is adapted to wirelessly serve a network device via a Radio Access, RA, node. The network node obtains information from the network device, which information comprises a category of the network device and a number of layers supported by the network device. The network node determines a length of a codebook subset restriction based on the information obtained from the network device. The network node further sends a codebook subset restriction bit map to the network device, according to the determined length of the codebook subset restriction.
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公开(公告)号：US10530431B2
公开(公告)日：2020-01-07
申请号：US16025663
申请日：2018-07-02
IPC分类号： H04B7/0417 , H04L1/18 , H04W72/06 , H04W28/04 , H04B7/0404 , H04L1/06 , H04B7/0456 , H04B7/06
摘要： There is disclosed a method performed by a User Equipment, UE, for Hybrid Automatic Repeat Request, HARQ, retransmission of data in a multi-antenna wireless communication system. The method comprises, receiving Acknowledgement/Negative Acknowledgement, ACK/NACK, feedback information relating to data transmitted on two streams, and performing, upon rank reduction where only one stream is available for transmission, retransmission of data on a cancelled stream over the remaining stream. There is furthermore disclosed a UE configured for performing the method. A transmission method together with an arrangement for a UE is also disclosed.
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公开(公告)号：US10057011B2
公开(公告)日：2018-08-21
申请号：US15329714
申请日：2014-07-30
发明人： SaiRamesh Nammi , Cagatay Konuskan , Namir Lidian
IPC分类号： H04L1/00
CPC分类号： H04L1/0054 , H04L1/0072
摘要： Method and receiver jointly detect and decode a part of an encoded, spread and modulated signal received on a channel in a wireless communication network and corrupted by channel multipath. Differences between the received signal and noiseless theoretical signals corresponding to each of the possible values of the part are calculated using hypothetical transmission matrices. The smallest difference corresponds to the actual value of the part.
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6.发明授权公开(公告)号：US09736770B2
公开(公告)日：2017-08-15
申请号：US15024077
申请日：2014-03-21
发明人： Namir Lidian , Sairamesh Nammi
CPC分类号： H04W48/20 , H04B7/0842 , H04L5/0048 , H04L5/0057 , H04W84/045
摘要： The exemplary embodiments herein relate to a controller node and a method in a controller node for selecting a network node in an heterogeneous network comprising a plurality of network nodes. The method comprises, receiving CQI values from a UE and based on those values selecting a network node for serving a UE.
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公开(公告)号：US20160360451A1
公开(公告)日：2016-12-08
申请号：US15022480
申请日：2016-01-22
发明人： Nianshan Shi , Sairamesh Nammi , Namir Lidian , Bo Göransson
CPC分类号： H04W36/0072 , H04B7/0456 , H04W36/04 , H04W36/08
摘要： A method and a radio network node for assisting in a handover of a user equipment from a first cell to a second cell as well as a method and a user equipment for handling the handover are disclosed. The radio network node sends an indication to the user equipment, wherein the indication indicates whether or not to use a same first codebook subset restriction bitmap in the second cell as in the first cell. Moreover, the user equipment receives the indication from the radio network node.
摘要翻译： 公开了一种用于帮助用户设备从第一小区切换到第二小区的方法和无线电网络节点以及用于处理切换的方法和用户设备。 无线电网络节点向用户设备发送指示，其中该指示指示是否在第二小区中使用与第一小区中相同的第一码本子集限制位图。 此外，用户设备从无线电网络节点接收指示。
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8.发明授权Systems and methods for reporting pilot signal power information in a four branch MIMO system 有权在四分支MIMO系统中报告导频信号功率信息的系统和方法公开(公告)号：US09538485B2
公开(公告)日：2017-01-03
申请号：US15188346
申请日：2016-06-21
发明人： Sairamesh Nammi , Mark Curran , Namir Lidian
IPC分类号： H04B7/02 , H04W52/32 , H04L5/00 , H04B7/04 , H04B7/06 , H04W72/12 , H04B17/336 , H04W88/08 , H04W88/02
CPC分类号： H04W52/325 , H04B7/04 , H04B7/0413 , H04B7/0617 , H04B7/0623 , H04B17/336 , H04L5/0048 , H04W52/42 , H04W72/1226 , H04W88/02 , H04W88/08
摘要： A base station, comprising a first antenna for transmitting a first pilot signal; a second antenna for transmitting a second a pilot signal; a third antenna for transmitting a third pilot signal; and a fourth antenna for transmitting a fourth pilot signal. The base station is configured to transmit pilot signal power information for indicating power values to a user equipment, UE, receiving the pilot signal power information. The pilot signal power information comprises: a first power value corresponding to the first pilot signal, a second power value corresponding to the second pilot signal, a third power value corresponding to the third pilot signal, and a fourth power value providing information regarding at least two demodulation pilot signals.
摘要翻译： 一种基站，包括用于发送第一导频信号的第一天线; 用于发送第二导频信号的第二天线; 用于发送第三导频信号的第三天线; 以及用于发送第四导频信号的第四天线。 基站被配置为向用户设备UE发送用于指示功率值的导频信号功率信息，UE接收导频信号功率信息。 导频信号功率信息包括：对应于第一导频信号的第一功率值，对应于第二导频信号的第二功率值，对应于第三导频信号的第三功率值，以及提供关于至少 两个解调导频信号。
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公开(公告)号：US20240364486A1
公开(公告)日：2024-10-31
申请号：US18688471
申请日：2021-09-03
发明人： Sairamesh Nammi , Namir Lidian
IPC分类号： H04L5/00
CPC分类号： H04L5/0085 , H04L5/0051
摘要： A network node (14) is configured for use in a wireless communication network (10). The network node (14) obtains a value of a metric (22) that indicates a speed at which a wireless communication device (12) moves. The network node (14) also determines. based on the value of the metric (22). how often the wireless communication device (12) is to send a sounding reference signal. SRS. (18), wherein the wireless communication device (12) is to send the SRS (18) more often for at least one value of the metric (22) below a threshold as compared to for at least one value above the threshold. The network node (14) transmits. to the wireless communication device (12), signaling (16) that configures or triggers the wireless communication device (12) to send the SRS (18) as often as determined.
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公开(公告)号：US20230083914A1
公开(公告)日：2023-03-16
申请号：US17799793
申请日：2021-02-12
发明人： Sairamesh Nammi , Thomas Chapman , Namir Lidian
摘要： Systems and methods are disclosed herein for transmission of multi- slot Physical Uplink Shared Channel PUSCH with repetitions in a half- duplex system such as a Time Division Duplexing TDD system. A method performed by a wireless device for transmission of multi- slot PUSCH repetitions in a half-duplex system comprises: receiving, from a network node, information related to slot-based configuration in a plurality of slots or mini-slots in the half-duplex system (400); determining multiple consecutive uplink symbols in the plurality of slots or mini-slots based on the information received from the network node (402); transmitting PUSCH repetitions to the network node in the determined multiple consecutive uplink symbols in the plurality of slots or mini- slots (404). In this manner, the uplink multi-slot operation is facilitated, the uplink transmission gain is increased and the coverage of the TDD system is improved.
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