公开(公告)号：US11362701B2

公开(公告)日：2022-06-14

申请号：US17320846

申请日：2021-05-14

Applicant: Landis+Gyr Innovations, Inc.

Inventor： James Patrick Hanley ,  Christopher Scott Hett

IPC: H04B1/7143 ,  H04L27/26 ,  H04B1/7075 ,  H04W84/20

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

公开(公告)号：US20210376879A1

公开(公告)日：2021-12-02

申请号：US17320846

申请日：2021-05-14

Applicant: Landis+Gyr Innovations, Inc.

Inventor： James Patrick Hanley ,  Christopher Scott Hett

IPC: H04B1/7143 ,  H04W84/20 ,  H04L27/26 ,  H04B1/7075

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

公开(公告)号：US20210203377A1

公开(公告)日：2021-07-01

申请号：US17198837

申请日：2021-03-11

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Xiao Feng WANG ,  Makesh Pravin JOHN WILSON

IPC: H04B1/7075 ,  H04B7/212 ,  H04B7/208 ,  H04B7/26 ,  H04W52/32 ,  H04W52/16 ,  H04W52/42 ,  H04L5/00 ,  H04W52/14 ,  H04W52/24

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for data transmission in synchronization slots. A method for use by a base station for data transmission in synchronization slots includes transmitting a synchronization signal (SS) burst, wherein different SS blocks of the burst are transmitted using different transmit beams and performing frequency division multiplexing (FDM) or time division multiplexing (TDM) to include one or more other types of signals that need to be multicast and are also transmitted using the different transmit beams

公开(公告)号：US11038550B1

公开(公告)日：2021-06-15

申请号：US16887695

申请日：2020-05-29

Applicant: Landis+Gyr Innovations, Inc.

Inventor： James Patrick Hanley ,  Christopher Scott Hett

IPC: H04B1/71 ,  H04B1/7143 ,  H04L27/26 ,  H04B1/7075 ,  H04W84/20

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

公开(公告)号：US10833909B2

公开(公告)日：2020-11-10

申请号：US16750081

申请日：2020-01-23

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Alexander-Universitaet Erlangen-Nuernberg

Inventor： Gerd Kilian ,  Josef Bernhard ,  Jörg Robert ,  Jakob Kneißl

IPC: H04L27/26 ,  H04L5/00 ,  H04B1/7075 ,  H04L7/04 ,  H04L7/10

Abstract: Embodiments provide a receiver having a receiving unit and a synchronization unit. The receiving unit is configured to receive a data packet having a pilot sequence. The synchronization unit is configured to separately correlate the pilot sequence with at least two partial reference sequences corresponding to a reference sequence for the pilot sequence of the data packet, in order to obtain a partial correlation result for each of the at least two partial reference sequences, wherein the synchronization unit is configured to non-coherently add the partial correlation results in order to obtain a coarse correlation result for the data packet.

公开(公告)号：US10816673B2

公开(公告)日：2020-10-27

申请号：US14919710

申请日：2015-10-21

Applicant: Texas Instruments Incorporated

Inventor： Jasbir Singh Nayyar ,  Sreenath Narayanan Potty ,  Sunil Chomal

IPC: G01S19/30 ,  H04B1/7075

Abstract: A personal navigation device includes a correlator for processing GNSS signals from a constellation of satellites A signal is received from a navigation beacon containing a repeating code word, in which the code word includes a number N of samples corresponding to N phases, and in which reception of each code word occurs within a defined time period T. The sequence of N code samples is correlated with a known code word to determine a maximum value of correlation for a particular phase of the received signal. The correlation is performed using a correlator of size M, in which M is less than N, such that N/M=P complete correlations for a partial code phase are performed such that each correlation of a partial code phase is performed within a time period of approximately T/P. All P correlations of partial code phases are completed within time T.

公开(公告)号：US10645745B2

公开(公告)日：2020-05-05

申请号：US15839669

申请日：2017-12-12

Applicant: CommScope Technologies LLC

Inventor： Sohil Thakkar ,  Michael McFarland ,  Vedat Eyuboglu ,  Balaji B Raghothaman

IPC: H04W76/16 ,  H04W84/12 ,  H04W16/24 ,  H04W16/14 ,  H04W48/16 ,  H04B1/7075 ,  H04W74/00

Abstract: One embodiment is directed to a system to provide wireless service to user equipment using licensed radio frequency spectrum and unlicensed RF spectrum. The system comprises a controller and a plurality of radio points to transmit and receive radio frequency signals to and from the user equipment using the licensed RF spectrum. The system further comprises a wireless termination to transmit and receive radio frequency signals to and from the user equipment using unlicensed RF spectrum. The controller is configured to use a mobility group for providing the wireless service to the user equipment using the unlicensed RF spectrum and a plurality of WLAN access points. The controller is configured to establish an interface with the wireless termination for the mobility group to communicate control plane data to the wireless termination associated with providing the wireless service to the user equipment using the unlicensed RF spectrum. Other embodiments are disclosed.

公开(公告)号：US20190268036A1

公开(公告)日：2019-08-29

申请号：US16318423

申请日：2017-07-27

Applicant: QINETIQ LIMITED

Inventor： Malcolm David MACLEOD

IPC: H04B1/7075 ,  G01S19/29 ,  G01S19/30 ,  H04B1/7136

Abstract: A method for the reception of a frequency hopped direct sequence spread spectrum signal includes acquiring the signal by splitting the received signal into a plurality of processing sub-channels, each corresponding to one or more hop frequencies; and within each sub-channel: i) subtracting any sub-carrier frequency from the received signal; ii) filtering the signal from (i) using a chip-matched filter; iii) selecting a sub-set of samples from the filtered signal; iv) correlating the sampled signal from step (iii) with a known reference signal to produce at least one correlator output. The output(s) from each sub-channel are provided to an input of a corresponding one or more common discrete time Fourier transforms (DTFT), and an output therefrom having a peak above a predetermined threshold is selected for further processing in the receiver. The method is a less expensive way of tracking the signal and can demodulate appropriately modulated signals.

公开(公告)号：US20190222340A1

公开(公告)日：2019-07-18

申请号：US16245456

申请日：2019-01-11

Applicant: Nokia Technologies Oy

Inventor： Jorma KAIKKONEN ,  Sami-Jukka Hakola

IPC: H04J11/00 ,  H04B1/7083 ,  H04B1/7073 ,  H04B1/7075 ,  H04W56/00

CPC classification number: H04J11/0086 ,  H04B1/70735 ,  H04B1/70754 ,  H04B1/70758 ,  H04B1/7083 ,  H04J11/0073 ,  H04J11/0076 ,  H04J11/0079 ,  H04W56/00

Abstract: A search is performed by a UE for cells in a wireless communication system, comprising: searching, in a frequency band, for a block that comprises a SS; determining, in response to finding the SS within the block, whether there is an indication in the block of a frequency range in which no remaining system information will be found; and continuing, in response to the indication being in the block, to search for cells in frequencies after the particular frequency. A network element determines that no remaining system information is to be transmitted in a block and in subsequent block(s) to be transmitted over a frequency band, and transmits the block with a SS used for UEs to search for cells, and with indication of a frequency range, from a current frequency corresponding to the transmitted block and in the frequency band, over which no remaining system information will be found.

公开(公告)号：US20190089404A1

公开(公告)日：2019-03-21

申请号：US16082461

申请日：2017-03-23

Applicant: Mitsubishi Electric Corporation

Inventor： Makoto YAMAZAKI ,  Tomohiro OGINO ,  Akinori FUJIMURA

IPC: H04B1/7075 ,  H04B1/7087 ,  H04B1/7143 ,  H04B1/715 ,  H04L9/06 ,  H04B7/185 ,  H04L1/00

CPC classification number: H04B1/7075 ,  H04B1/7073 ,  H04B1/7077 ,  H04B1/7087 ,  H04B1/7143 ,  H04B1/715 ,  H04B7/18508 ,  H04J13/16 ,  H04L1/0003 ,  H04L1/0009 ,  H04L9/0631

Abstract: A receiver includes a reception antenna, a reception unit, and a demodulation unit. The reception unit sequentially receives modulated signals resulting from spread spectrum via the reception antenna. The demodulation unit demodulate a first signal received by the reception unit by performing despreading using a short-period spreading code, the first signal including information for identifying a long-period spreading code. The demodulation unit identifies the long-period spreading code on the basis of the information obtained from the first signal. The demodulation unit then demodulates a second signal received by the reception unit after the first signal by performing despreading using the long-period spreading code.