SELECTIVELY COMBINING UPLINK SIGNALS IN DISTRIBUTED ANTENNA SYSTEMS

    公开(公告)号:US20170163316A1

    公开(公告)日:2017-06-08

    申请号:US15437032

    申请日:2017-02-20

    Abstract: Certain aspects involve selectively combining uplink transmissions in a distributed antenna system (“DAS”). For example, a unit of the DAS can receive baseband uplink transmissions from remote units of the DAS via a first channel and a second channel. The unit can generate a first combined uplink signal by combining baseband uplink transmissions received from a first subset of the remote units via the first channel that include data for transmission to a base station. The unit can generate a second combined uplink signal that includes baseband uplink transmissions received from a second subset of the remote units via the second channel and excludes or attenuates baseband uplink transmissions that are received from the first subset of the remote units via the second channel and that lack data for transmission to the base station are excluded or attenuated. The unit can transmit the combined uplink signals to the base station.

    EXTRACTING SUB-BANDS FROM SIGNALS IN A FREQUENCY DOMAIN
    14.
    发明申请
    EXTRACTING SUB-BANDS FROM SIGNALS IN A FREQUENCY DOMAIN 有权
    从频域中的信号提取子带

    公开(公告)号:US20160373285A1

    公开(公告)日:2016-12-22

    申请号:US15255592

    申请日:2016-09-02

    CPC classification number: H04L27/2627 H04B7/026 H04L5/0005 H04W72/0426

    Abstract: Embodiments are disclosed for extracting sub-bands of interest from signals in a frequency domain for transmission via a distributed antenna system. In one aspect, a transformed downlink signal is generated by performing a frequency transform on a downlink signal. The transformed downlink signal represents the downlink signal in a frequency domain. At least one sub-band of the transformed downlink signal is identified as including data to be transmitted via the distributed antenna system. The sub-band is extracted from the transformed downlink signal for transmission via the distributed antenna system.

    Abstract translation: 公开了用于从频域中的信号中提取感兴趣的子带以便经由分布式天线系统传输的实施例。 一方面,通过对下行链路信号进行频率变换来生成变换后的下行链路信号。 变换的下行链路信号表示频域中的下行链路信号。 经变换的下行链路信号的至少一个子带被识别为包括要经由分布式天线系统传输的数据。 从经变换的下行链路信号提取子带,以经由分布式天线系统传输。

    Extracting sub-bands from signals in a frequency domain
    15.
    发明授权
    Extracting sub-bands from signals in a frequency domain 有权
    从频域的信号中提取子带

    公开(公告)号:US09438318B2

    公开(公告)日:2016-09-06

    申请号:US14255739

    申请日:2014-04-17

    CPC classification number: H04L27/2627 H04B7/026 H04L5/0005 H04W72/0426

    Abstract: Embodiments are disclosed for extracting sub-bands of interest from signals in a frequency domain for transmission via a distributed antenna system. In one aspect, a transformed downlink signal is generated by performing a frequency transform on a downlink signal. The transformed downlink signal represents the downlink signal in a frequency domain. At least one sub-band of the transformed downlink signal is identified as including data to be transmitted via the distributed antenna system. The sub-band is extracted from the transformed downlink signal for transmission via the distributed antenna system.

    Abstract translation: 公开了用于从频域中的信号中提取感兴趣的子带以便经由分布式天线系统传输的实施例。 一方面,通过对下行链路信号进行频率变换来生成变换后的下行链路信号。 变换的下行链路信号表示频域中的下行链路信号。 经变换的下行链路信号的至少一个子带被识别为包括要经由分布式天线系统传输的数据。 从经变换的下行链路信号提取子带,以经由分布式天线系统传输。

    Isolation in power-over-ethernet powered devices

    公开(公告)号:US11582047B2

    公开(公告)日:2023-02-14

    申请号:US15569370

    申请日:2016-04-28

    Inventor: Van E. Hanson

    Abstract: One embodiment is directed a powered device that comprises a connector to connect a multi-conductor cable to the powered device and device circuits partitioned into a first partition and a second partition. The powered device is configured to receive power from a first cable circuit and a second cable circuit provided over the multi-conductor cable. The powered device is configured to separately power the first partition using power received from the first cable circuit and power the second partition using power received from the second cable circuit and to power isolate the first cable circuit from the second cable circuit. The powered device further comprises at least one isolation device coupled to the first partition and the second partition and configured to enable information to be communicated between the first partition and the second partition. Other embodiments are disclosed.

    Wideband remote unit for distributed antenna system

    公开(公告)号:US11283530B2

    公开(公告)日:2022-03-22

    申请号:US16011333

    申请日:2018-06-18

    Abstract: Certain aspects involve a wideband remote unit. The wideband remote unit can include one or more antennas and an analog-to-digital converter (“ADC”). The antenna can receive wideband signals. The wideband signals can include an uplink RF signal and a leaked downlink RF signal. The uplink RF signal can have an uplink signal power at or near a noise level. The leaked downlink RF signal can have a downlink signal power greater than the uplink signal power. The ADC can convert the received wideband signals to digital RF signals representing the uplink signal and the downlink signal. The wideband remote unit can transmit the digital RF signals to a unit of a DAS that is in communication with a base station.

    Systems and methods for transporting digital RF signals

    公开(公告)号:US10389557B2

    公开(公告)日:2019-08-20

    申请号:US16167315

    申请日:2018-10-22

    Abstract: A communication device for use within a communication system, the device comprising: re-sampling circuitry configured to output re-sampled digital downlink signals by re-sampling digital downlink signals at resample rates based on at least one factor, the re-sampled digital downlink signals having a smaller bandwidth than the digital downlink signals; and framing circuitry configured to multiplex the re-sampled digital downlink signals and to generate a first frame that includes the re-sampled digital downlink signals as framed data for transport to one or more remotely located communication devices of the communication system, wherein the one or more remotely located communication devices of the communication system are configured to transmit radio frequency signals using at least one antenna, wherein the transmitted radio frequency signals are derived from the framed data of the first frame received from the communication device.

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