-
公开(公告)号：US20170317722A1
公开(公告)日：2017-11-02
申请号：US15521575
申请日：2015-11-06
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
CPC classification number: H04B7/022 , H04B7/024 , H04B7/0417 , H04B7/0456 , H04B7/0619 , H04W52/42 , H04W72/0453
Abstract: The present disclosure describes devices, systems, and methods for allocating bandwidth among communication links in a telecommunication system. Some aspects can involve identifying multiple transmission modes used to transmit downlink signals via remote units of a telecommunications system to groups of terminal devices. Each group of terminal devices may receive downlink signals using a respective transmission mode. Respective weights can be assigned to the groups of terminal devices based on the transmission modes. The downlink signals, which are provided to each remote unit associate with each group of terminal devices, can be configured using a respective signal power that is associated with a respective weight for the group of terminal devices associated with the respective remote unit.
-
公开(公告)号：US09768855B2
公开(公告)日：2017-09-19
申请号：US15114624
申请日：2015-01-21
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
CPC classification number: H04B7/15585 , H04B1/525 , H04L25/03012 , H04L25/03082 , H04L2025/03496 , H04W88/085
Abstract: Certain features relate to a remote antenna unit having a multi-stage isolation sub-system for isolating uplink and downlink signal paths. A multi-stage isolation sub-system in the remote antenna unit can include a first stage device that is configured to generate a cancellation signal for canceling unwanted downlink signals received at the uplink antenna. The isolation sub-system can also include a second stage device configured to generate a cancellation signal that attenuates residual noise and intermodulation products generated in the downlink path and received in the uplink path. The multi-stage isolation sub-system can combine the cancellation signals with signals received on the uplink path in order to cancel or attenuate downlink leakage signals and residual noise present on the uplink path.
-
公开(公告)号：US20170026104A1
公开(公告)日：2017-01-26
申请号：US15183574
申请日：2016-06-15
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
CPC classification number: H04B7/14 , H03F3/24 , H04B1/04 , H04B1/525 , H04B7/155 , H04B2001/0408 , H04W72/0453
Abstract: A radio frequency transmitter device, constituted for transmitting a radio frequency signal in a frequency band comprising at least one transmit subband and at least one receive subband, comprises: a transmit chain for processing a transmit signal associated with the at least one transmit subband; a power amplifier for amplifying the transmit signal; an output port for transmitting the amplified transmit signal; a processing unit for calculating, from the transmit signal associated with the at least one transmit subband, a correction signal in the at least one receive subband making use of a power amplifier model modelling the behavior of the power amplifier; and a coupler for adding the correction signal to the amplified transmit signal for cancelling intermodulation products in the amplified transmit signal produced by the power amplifier.
Abstract translation: 一种用于在包括至少一个发射子带和至少一个接收子带的频带中发送射频信号的射频发射机装置，包括：用于处理与所述至少一个发射子带相关联的发射信号的发射链; 用于放大发射信号的功率放大器; 用于发送放大的发送信号的输出端口; 处理单元，用于根据与所述至少一个发射子带相关联的发射信号，利用对所述功率放大器的行为建模的功率放大器模型来计算所述至少一个接收子带中的校正信号; 以及耦合器，用于将校正信号添加到放大的发射信号，以消除由功率放大器产生的放大的发射信号中的互调产物。
-
公开(公告)号：US11283530B2
公开(公告)日：2022-03-22
申请号：US16011333
申请日：2018-06-18
Applicant: CommScope Technologies LLC
Inventor： Christopher Goodman Ranson , Thomas Kummetz , Van E. Hanson , Keld Knut Lange
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.
-
15.发明授权公开(公告)号：US10375696B2
公开(公告)日：2019-08-06
申请号：US15958897
申请日：2018-04-20
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
Abstract: Systems and methods are provided for optimizing power allocation in distributed antenna systems and other signal distribution systems using variable and static gains. A power optimization sub-system can receive downlink signals from one or more base stations. The power optimization sub-system can group the downlink signals into a first set of downlink signals for which a static gain is to be applied and a second set of downlink signals for which a variable gain is to be applied. The power optimization sub-system can determine a gain for at least some of the signals to which a variable gain is to be applied. The determined gain can be sufficient to achieve a target metric. The power optimization sub-system can apply the static gain to the first set of signals and apply the determined gain to the second set of signals.
-
Patent Agency Ranking
16.发明申请公开(公告)号：US20190110296A1
公开(公告)日：2019-04-11
申请号：US15958897
申请日：2018-04-20
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
CPC classification number: H04W72/0473 , H04B7/026 , H04B17/13 , H04W52/241 , H04W52/245 , H04W52/46 , H04W88/085
Abstract: Systems and methods are provided for optimizing power allocation in distributed antenna systems and other signal distribution systems using variable and static gains. A power optimization sub-system can receive downlink signals from one or more base stations. The power optimization sub-system can group the downlink signals into a first set of downlink signals for which a static gain is to be applied and a second set of downlink signals for which a variable gain is to be applied. The power optimization sub-system can determine a gain for at least some of the signals to which a variable gain is to be applied. The determined gain can be sufficient to achieve a target metric. The power optimization sub-system can apply the static gain to the first set of signals and apply the determined gain to the second set of signals.
-
17.发明授权公开(公告)号：US09980269B2
公开(公告)日：2018-05-22
申请号：US14441389
申请日：2015-01-21
Applicant: COMMSCOPE TECHNOLOGIES LLC
Inventor： Keld Knut Lange
CPC classification number: H04W72/0473 , H04B7/026 , H04B17/13 , H04W52/241 , H04W52/245 , H04W52/46 , H04W88/085
Abstract: Systems and methods are provided for optimizing power allocation in distributed antenna systems and other signal distribution systems using variable and static gains. A power optimization sub-system can receive downlink signals from one or more base stations. The power optimization sub-system can group the downlink signals into a first set of downlink signals for which a static gain is to be applied and a second set of downlink signals for which a variable gain is to be applied. The power optimization sub-system can determine a gain for at least some of the signals to which a variable gain is to be applied. The determined gain can be sufficient to achieve a target metric. The power optimization sub-system can apply the static gain to the first set of signals and apply the determined gain to the second set of signals.
-
公开(公告)号：US20170317738A1
公开(公告)日：2017-11-02
申请号：US15520792
申请日：2015-05-27
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
Abstract: Certain features relate to a digital multichannel interface between a base station and a repeater in a telecommunications system, such as a distributed antenna system. The digital multichannel interface can provide streams of I/Q samples that carry information from multiple carriers of a wideband communications signal as well as semi-static control information for the telecommunications system. The digital multichannel interface can also transport frame timing information between the base station and the repeater. The frame timing information can maintain synchronization between the uplink transmit frames carrying uplink I/Q samples and the downlink transmit frames carrying downlink I/Q samples.
-
公开(公告)号：US20170279517A1
公开(公告)日：2017-09-28
申请号：US15620307
申请日：2017-06-12
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
IPC: H04B7/155
CPC classification number: H04B7/15507 , H04B7/155
Abstract: A circuit for use within a distributed antenna system includes: demodulators configured to generate respective frequency-shifted downlink signals from a carrier of a plurality of carriers included within a broadband downlink signal received at the circuit, each of the frequency-shifted downlink signals having a respective frequency shift from a frequency of the carrier, wherein the respective frequency shift is based on a bandwidth of a narrowband channel associated with the carrier, and filters communicatively coupled to the demodulators and configured to output a set of narrowband downlink signals, wherein each of the filters has a passband corresponding to the bandwidth of the carrier and is configured to generate a respective narrowband downlink signal of the set of narrowband downlink signals by filtering a respective one of the frequency-shifted downlink signals.
-
20.发明申请公开(公告)号：US20170222698A1
公开(公告)日：2017-08-03
申请号：US15118581
申请日：2015-01-30
Applicant: CommScope Technologies LLC
Inventor： Keld Knut Lange
IPC: H04B7/0456 , H04W88/08 , H04B7/024
CPC classification number: H04B7/0456 , H04B7/022 , H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0639 , H04W88/085
Abstract: Certain aspects involve a spatial separation sub-system for a distributed antenna system (“DAS”). The spatial separation sub-system can include input ports that are communicatively connectable to a base station, output ports that are communicatively connectable to remote antenna units of the DAS, and RF circuitry that communicatively connects the input ports and the output ports. The spatial separation sub-system can receive at least two downlink signals via at least two of the input ports. A phase difference between the downlink signals can correspond to a codebook index used to encode the downlink signals for multiple-input/multiple-output (“MIMO”) transmission. The RF circuitry can provide a combined signal power from the downlink signals to one of the output ports based on the phase difference between the downlink signals.
-
-
-
-
-
-
-
-
-
Search Results
44
records
(took 0.022 seconds)
