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    Method for iterative estimation of global parameters
    2.
    发明授权
    Method for iterative estimation of global parameters 有权
    全局参数的迭代估计方法

    公开(公告)号：US09099776B2

    公开(公告)日：2015-08-04

    申请号：US13403532

    申请日：2012-02-23

    申请人： Yash Vasavada ,  Xiaoling Huang ,  Ambarish Purohit ,  Channasandra Ravishankar ,  John E. Corrigan, III

    发明人： Yash Vasavada ,  Xiaoling Huang ,  Ambarish Purohit ,  Channasandra Ravishankar ,  John E. Corrigan, III

    IPC分类号： H04B1/00 ,  H04B15/00 ,  H01Q3/26

    CPC分类号： H01Q3/267

    摘要： A method for iterative estimation of a set of unknown channel parameters in a beamforming network including determining a first order estimate of offsets at measurement nodes and an estimate of the confidence in the initial estimate of the measurement nodes' offsets, and iterating, until a desired estimation accuracy is obtained, determining an improved estimate of a parameter set, and the confidence in the estimates, using the prior estimate of the offsets at the measurement nodes and determining an improved estimate of the offsets at the measurement nodes and the associated confidence values using the prior estimate of the parameter set and the corresponding confidence values.

    摘要翻译： 一种用于迭代估计波束形成网络中的一组未知信道参数的方法，包括确定测量节点处的偏移量的一阶估计，以及对测量节点偏移的初始估计中的置信度的估计，并且迭代，直到所需的 使用在测量节点处的偏移的先前估计来确定参数集合的改进的估计和估计的置信度并且使用以下方法确定测量节点处的偏移的改进的估计和相关联的置信度值： 参数集的先前估计和相应的置信度值。

    Inter-layer communications in wireless networks including a high latency connection
    7.
    发明授权
    Inter-layer communications in wireless networks including a high latency connection 有权

    公开(公告)号：US10455475B1

    公开(公告)日：2019-10-22

    申请号：US16228662

    申请日：2018-12-20

    申请人： Sandeep Ahluwalia ,  Channasandra Ravishankar ,  Charles Barnett

    发明人： Sandeep Ahluwalia ,  Channasandra Ravishankar ,  Charles Barnett

    IPC分类号： H04W4/00 ,  H04W36/32 ,  H04W36/08 ,  H04W36/00 ,  H04W84/06

    摘要： A system and method for interfacing a User Equipment (UE) to a Core Network (CN) is disclosed. The method including: providing a high latency connection; providing a satellite network portal (SNP) to connect to the UE via a satellite link, wherein the SNP includes a Media Access Control (MAC) layer for managing the satellite link and a Radio Layer Control (RLC) layer of the UE; interfacing the UE to the CN with a Point of Presence (POP) including a Radio Resource Control (RRC) layer of the UE and a Packet Data Convergence Protocol (PDCP) layer of the UE; and establishing a session between the CN and the UE via the RRC layer, the PDCP layer and the RLC layer. In the method, network traffic, between the SNP and the POP, over the high latency connection has a latency greater than 10 milliseconds (ms), the session does not timeout due to the latency of the high latency connection, and the MAC layer schedules bandwidth for the establishing over the satellite link.

    Method and system of providing second generation (2G) voice services over Internet protocol
    9.
    发明授权
    Method and system of providing second generation (2G) voice services over Internet protocol 有权

    公开(公告)号：US11223666B2

    公开(公告)日：2022-01-11

    申请号：US16694106

    申请日：2019-11-25

    申请人： Channasandra Ravishankar ,  Gaguk Zakaria

    发明人： Channasandra Ravishankar ,  Gaguk Zakaria

    IPC分类号： H04L29/06 ,  H04W84/06 ,  H04W88/16 ,  H04W92/14 ,  H04W92/06 ,  H04W92/02 ,  H04L12/66

    摘要： A system to provide second generation (2G) voice services over internet protocol, the system including: a voice gateway (VGW) including a 2G stack to communicate control plane information and user plane information with a 2G user terminal (UT) via a circuit-switched network without modifications to the 2G-UT, an Iu-CS IP stack, and a relay to map the control plane information between the 2G stack and the Iu-CS IP stack, and vice-versa; a mobile switching center (MSC), connected to the VGW via the Iu-CS IP stack, to manage and establish the voice services between the 2G-UT and a public switched telephone network (PSTN) based on the mapped control plane information; and a media gateway (MGW) connected to the VGW via the Iu-CS IP stack, where the MGW communicates the user plane information between the 2G-UT and the PSTN after the MSC 2-G UT vocoder, e.g. AMBE, has established voice services.