METHODS AND APPARATUS FOR SECURE VOICE COMMUNICATIONS

    公开(公告)号:US20230209334A1

    公开(公告)日:2023-06-29

    申请号:US18111885

    申请日:2023-02-20

    CPC classification number: H04W12/033 H04B1/7143 H04W8/183 H04W16/14 H04W76/15

    Abstract: A first dual SIM user equipment (UE) has a first wireless connection to first Citizens Broadband radio Services Devices (CBSD) of a first network and a second wireless connection to a second CBSD of a second network. Different encryption and different frequency hopping patterns are used with regard to communicating the same voice packet information over the first and second wireless connections. The same voice information is attempted to be redundantly communicated over the two connections, e.g. concurrently or with a slight delay with regard to the two connections. The CBRS communications are typically less reliable than cellular licensed spectrum communications, and a particular encrypted voice packet may, and sometimes is lost; however, the redundancy is used to compensate for expected losses. Successfully recovered encrypted voice packets are sent from the CBSDs to a packet synchronizer which performs decryption and combines the recovered packets into a single packet stream.

    MULTI-MODE WIRELESS APPARATUS AND METHODS OF OPERATION

    公开(公告)号:US20230052684A1

    公开(公告)日:2023-02-16

    申请号:US17962818

    申请日:2022-10-10

    Abstract: Apparatus and methods for multi-mode operation of a wireless-enabled device, including for extending the range of the wireless signal in a wireless network. In one embodiment, a multi-mode Consumer Premises Equipment (CPE) is provided utilizing “quasi-licensed” CBRS (Citizen Broadband Radio Service) wireless spectrum. In one variant, the apparatus and methods provide a solution to use a CPE in a Wi-Fi extender mode to extend Wi-Fi signal from a router. In another variant, a solution is provided to use a CPE in an LTE repeater mode to extend the LTE signal from an LTE eNB/gNB. In another embodiment, a CPE is used as a base station for a wireless network utilizing “quasi-licensed” CBRS (Citizen Broadband Radio Service) wireless spectrum.

    Methods and apparatus for utilizing dual radio access technologies in wireless systems

    公开(公告)号:US11570833B2

    公开(公告)日:2023-01-31

    申请号:US17111425

    申请日:2020-12-03

    Abstract: Methods and apparatus for operation of a dual-connectivity enabled premises device in a wireless communication network. In one embodiment, the methods and apparatus utilize so-called “quasi-licensed” CBRS (Citizens Broadband Radio Service) wireless spectrum in conjunction with a cellular wireless communication network (e.g. having 4G/4.5G LTE and 5G NR base stations) for the provision of services to a number of installed enhanced fixed wireless apparatus (FWAe) at user or subscriber premises. The FWAe has dual-connectivity functionality, and can connect to two different access technologies simultaneously. The FWAe (and base stations) also support a “split” mode of operation wherein each air interface is selectively used for only certain types of traffic (e.g., UL or DL only).

    METHODS AND APPARATUS FOR PROVIDING ACCESS TO WIRELESS NETWORKS

    公开(公告)号:US20220353925A1

    公开(公告)日:2022-11-03

    申请号:US17861172

    申请日:2022-07-09

    Abstract: The present invention relates to methods and apparatus for providing devices access to wireless base stations. An exemplary method embodiment includes the steps of: receiving over the air at a wireless base station a plurality of random access preamble signals from a plurality of devices; and determining, by the wireless base station, the order in which to respond to the received random access preamble signals based on an access priority list. The access priority list being determined based on customer premises equipment devices characteristics, attributes and/or properties.

    Dynamic data rate selection
    126.
    发明授权

    公开(公告)号:US11388675B2

    公开(公告)日:2022-07-12

    申请号:US17113172

    申请日:2020-12-07

    Abstract: Dynamic data rate selection in wireless networks is described. The includes sending, by a wireless controller to a base station, an access point power-data rate table. The base station updates a base station power-data rate table with the access point power-data rate table based on checking defined thresholds, confirms the validity of the updated base station power-data rate table by receiving measurements from a user device responsive to communications using the updated base station power-data rate table, reverts to a previous base station power-data rate table if the measurements indicate that the updated base station power-data rate table is not correct, and sends to the wireless controller one of the updated base station power-data rate table or the previous base station power-data rate table. The wireless controller updates the access point power-data rate table and sends the updated access point power-data rate table to an access point.

    Methods and apparatus for transmission power management in wireless networks

    公开(公告)号:US11317360B2

    公开(公告)日:2022-04-26

    申请号:US16937356

    申请日:2020-07-23

    Abstract: Methods and apparatus for managing the power transmit level of Citizens Broadband Radio Service Devices (CBSDs) in a Citizens Broadband Radio Service Network. In an exemplary method embodiment a CBSD is operated to: (i) receive from a Spectrum Access System one or more of: (a) a power headroom threshold value used to identify cell edge user equipment devices (UEs) or (b) a channel quality indicator threshold value used to identify cell edge user equipment devices; receive a power down command from the SAS; (ii) identify based on one or more of the received power headroom threshold value and the received channel quality indicator threshold value cell edge UEs being serviced by the CBSD; and (iii) decrease transmit power of the CBSD by an estimated amount of transmit power required to support the identified cell edge UEs.

    TIME INTERLEAVED COVERAGE ZONES IN WIRELESS NETWORKS

    公开(公告)号:US20220060971A1

    公开(公告)日:2022-02-24

    申请号:US16999606

    申请日:2020-08-21

    Abstract: Various embodiments comprise systems, methods, architectures, mechanisms and apparatus for creating coverage zones (CZs) at a Citizens Broadband Radio Service Device (CBSD) nodes where each CZ is defined by a respective Physical layer Cell Identity (PCI), and each CZ is allocated a respective time slot having a duration selected in accordance with a type of wireless device (WD) to be supported by the CZ, and each CZ communicates during its respective time slot via some or all of the antennas or antenna sections (e.g., coverage areas or sections S1-S3) of the node such that the node communicates with different types of WD in a time-interleaved manner via some or all of the coverage areas associated with the node.

    METHODS AND APPARATUS FOR MANAGING DOWNLINK CHANNELS AND/OR BANDWIDTH IN WIRELESS SYSTEMS

    公开(公告)号:US20220030594A1

    公开(公告)日:2022-01-27

    申请号:US16938960

    申请日:2020-07-25

    Abstract: The present invention is directed to methods and apparatus for managing downlink channels and/or bandwidth in wireless systems. An exemplary method wireless communications method embodiments includes the steps of: monitoring, by a wireless base station, a downlink channel utilization rate of data transmissions from the wireless base station to a first customer premises equipment (CPE) device on a downlink shared channel to detect a first condition; and upon detecting, by the wireless base station, that the first condition exists, switching from operating in a first wireless base station mode of operation to operating in a second wireless base station mode of operation, said switching from operating in a first mode of operation to operating in a second mode of operation including switching from using a downlink control channel for transmitting downlink control information to the first CPE device to using the downlink control channel for transmitting user data.

    Methods and apparatus for monitoring contested spectrum and/or responding to the detection of an incumbent user

    公开(公告)号:US11190949B2

    公开(公告)日:2021-11-30

    申请号:US16693221

    申请日:2019-11-22

    Abstract: A base station, e.g., a CBSD, selects or more user equipment (UE) devices, e.g., cell phones, to operate in monitoring mode. In monitoring mode the UE device, in addition to its normal communications with the base station, performs received power measurements in a frequency band, e.g., a CBRS band. The UE reports to the base station information indicating a UE determined measured power level attributed to incumbent user or measurement information used to derive a power level attributed to incumbent user. One or more base stations report received power measurement values attributed to incumbent user to a system management device, e.g., a SAS. The system management device processes the received information, e.g. combining information, and comparing a result to a threshold level. If the result exceeds the threshold the system management device sends a command to one or more base station to shut down DL traffic in the CBRS band.

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