RADIO ACCESS NETWORKS
    32.
    发明申请

    公开(公告)号:US20230078813A1

    公开(公告)日:2023-03-16

    申请号:US18048736

    申请日:2022-10-21

    Abstract: A communication system includes a remote unit that exchanges radio frequency signals with mobile devices, at least some of the radio frequency signals comprising information destined for, or originating from, a mobile device, the remote unit being configured to perform first physical layer processing. A controller is separated from the remote unit by a switched Ethernet network, wherein data corresponding to the information is transmitted in frames between the controller and the remote unit. At least some of the data comprises baseband data that is transmitted in frequency domain. The controller and the remote unit are configured to transmit time stamp messages on the switched Ethernet network to synchronize a controller clock and a remote unit clock. The controller is configured to advance downlink subframe timing relative to the remote unit, when transmitting on the switched Ethernet network, based on a measured transport delay across the switched Ethernet network.

    RADIO ACCESS NETWORKS
    33.
    发明申请

    公开(公告)号:US20210345137A1

    公开(公告)日:2021-11-04

    申请号:US17374666

    申请日:2021-07-13

    Abstract: Among other things, a communication system comprising at least one remote unit and controller is described. The at least one remote unit wirelessly exchanges radio frequency (RF) signals with mobile devices. Each RF signal comprises information destined for, or originating from, at least one of the mobile devices. The at least two remote units and the controller communicate baseband data corresponding to the information across an intermediate network. The at least two remote units each implement at least some physical layer processing for an air interface used to wirelessly communicate with the subscriber devices. The controller is configured to perform at least some receive signal processing using combined data resulting from combining at least some of the baseband data communicated from more than one of the at least two remote units.

    RADIO ACCESS NETWORKS
    34.
    发明申请

    公开(公告)号:US20210314975A1

    公开(公告)日:2021-10-07

    申请号:US17345219

    申请日:2021-06-11

    Abstract: An example communication system includes remote units to exchange radio frequency (RF) signals with mobile devices, RF signals comprising information destined for, or originating from, a mobile device, the remote units performing at least some physical layer processing for an air interface used by the remote units to communicate with the mobile device. The communication system also includes two or more controllers comprising real-time schedulers for assigning airlink resources to the mobile device for the information. The communication system also includes a coordination function coupled to the two or more controllers to coordinate assignments made by the real-time schedulers in the two or more controllers.

    LTE-WiFi aggregation (LWA) support in a cloud-RAN system

    公开(公告)号:US10645745B2

    公开(公告)日:2020-05-05

    申请号:US15839669

    申请日:2017-12-12

    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.

    Radio access networks
    37.
    发明授权

    公开(公告)号:US10292175B2

    公开(公告)日:2019-05-14

    申请号:US15231384

    申请日:2016-08-08

    Abstract: Among other things, a communication system comprising remote units and a controller is described. Each of the remote units comprises one or more radio frequency (RF) units to exchange RF signals with mobile devices. At least some of the RF signals comprise information destined for, or originating from, a mobile device. The controller comprises one or more modems and is connected to an external network. At least one of the modems is a baseband modem and is configured to pass first data corresponding to the information. The at least one of the modems is configured to perform real-time scheduling of the first data corresponding to the information. The controller is separated from the remote units by an intermediate network. The intermediate network comprises a switched Ethernet network over which second data corresponding to the information is carried in frames between the controller and the remote units.

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