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公开(公告)号：US20210006944A1
公开(公告)日：2021-01-07
申请号：US16918715
申请日：2020-07-01
Applicant: CommScope Technologies LLC
Abstract: A C-RAN includes a plurality of remote units; and a central unit communicatively coupled to the remote units via a fronthaul network. The central unit is configured to determine sets of data to be sent to respective subsets of remote units across the fronthaul network. The central unit is also configured to determine a mapping of each of the sets of data to a respective one of the subsets of remote units. The central unit is also configured to, for each of the sets of data, if at least one of the multicast groups wholly contains the respective subset of remote units mapped to that set of data, transmit that set of data to the respective subset of remote units over the fronthaul network by multicasting that set of data to the multicast group that best matches the respective subset of remote units mapped to that set of data.
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公开(公告)号：US12244531B2
公开(公告)日：2025-03-04
申请号：US17938748
申请日：2022-10-07
Applicant: CommScope Technologies LLC
Inventor： Stuart D. Sandberg , Irfaan Ahamed Salahuddeen , Ehsan Daeipour
Abstract: Orthogonal DMRS ports with resource block reuse in a single cell is provided. ABS comprises: a BBE and RUs. The BS transmits user data to each of a plurality of UEs on a PDSCH using a PRB allocation for the cell. The PRB and cell are the same for all UEs. The PRB comprises DMRS symbols. The BS transmits user data to each UE on the PDSCH using a respective non-intersecting subset of the RUs. No RU transmits user data on the PDSCH using the PRB to more than one UE. The BBE: determines non-intersecting sets of DMRS ports; assigns one set to each UE; and causes the BS to transmit UE-specific DMRS to UE on the DMRS ports in the set assigned to that UE using only a respective non-intersecting subset of RUs used for transmitting user data to that UE on the PDSCH using the PRB.
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公开(公告)号：US12063519B2
公开(公告)日：2024-08-13
申请号：US18306810
申请日：2023-04-25
Applicant: CommScope Technologies LLC
Inventor： Irfaan Ahamed Salahuddeen , Arthur J. Barabell
IPC: H04W16/14 , H04W74/08 , H04W74/0808 , H04W84/04
CPC classification number: H04W16/14 , H04W74/0808 , H04W84/042
Abstract: One embodiment is directed to a system that is configured to communicate at least two different types of fronthaul data from a plurality of baseband units to a shared radio point using a single application-layer protocol that supports at least two types of elements. Each of the at least two types of elements is configured for a respective one of the at least two different types of fronthaul data. The system is configured so at least some of the elements communicated using the application-layer protocol include one or more sub-elements, where each sub-element comprises a type field, a length field, and a value portion.
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公开(公告)号：US11671840B2
公开(公告)日：2023-06-06
申请号：US15931367
申请日：2020-05-13
Applicant: CommScope Technologies LLC
Inventor： Irfaan Ahamed Salahuddeen , Arthur J. Barabell
CPC classification number: H04W16/14 , H04W74/0808 , H04W84/042
Abstract: One embodiment is directed to a centralized radio access network (C-RAN) system that is configured so that physical layer processing for the wireless interface is split so that some of the physical layer processing is performed in a controller and some of the physical layer processing is performed in a plurality of radio points. The system is configured so that scrambling of first downlink data to be communicated to a UE over the wireless interface is performed in the controller and so that scrambling of second downlink data to be communicated to said UE over the wireless interface is performed in one of the radio points. Other embodiments are disclosed.
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公开(公告)号：US11564077B2
公开(公告)日：2023-01-24
申请号：US16663257
申请日：2019-10-24
Applicant: CommScope Technologies LLC
Inventor： Arthur J. Barabell , Irfaan Ahamed Salahuddeen , Santosh Ajjannavar , Shanthakumar Ramakrishnan
Abstract: One embodiment is directed to a multi-carrier radio point for use in a centralized radio access network (C-RAN). The multi-carrier radio point is configured so that the processing and hardware resources provided by the radio point can be associated with controllers of the C-RAN in a flexible manner. A single multi-carrier radio point can be used with multiple controllers to serve multiple cells, where the processing and hardware resources used for the multiple controllers need not be configured and used in the same way.
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Patent Agency Ranking
公开(公告)号：US20220417876A1
公开(公告)日：2022-12-29
申请号：US17848784
申请日：2022-06-24
Applicant: CommScope Technologies LLC
Abstract: One embodiment is directed to an open radio access network (O-RAN) distributed antenna system (DAS) that comprises a central access node (CAN) configured to communicatively couple at least one O-RAN distributed unit (O-DU) to the O-RAN DAS, where the O-DU is configured to communicate with a single O-RAN remote unit (O-RU) entity. The O-RAN DAS also includes a plurality of O-RAN remote units (O-RUs) communicatively coupled to the CAN over a fronthaul network, where the O-DU, CAN, and O-RUs are configured to natively use an O-RAN fronthaul interface to communicate fronthaul data over the fronthaul network. The CAN is configured to appear to the O-DU as the single O-RU entity for a cell served by the O-DU even though the CAN is configured to serve the cell using multiple O-RUs that form a simulcast group for that cell. One or more CANs can be used. Other embodiments are disclosed.
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公开(公告)号：US11496943B2
公开(公告)日：2022-11-08
申请号：US16918691
申请日：2020-07-01
Applicant: CommScope Technologies LLC
Inventor： Balaji B Raghothaman , Irfaan Ahamed Salahuddeen , Arthur J. Barabell
IPC: H04W40/02 , H04W4/06 , H04W72/04 , H04W24/10 , H04W92/20 , H04W88/08 , H04L69/164 , H04L69/22 , H04L5/00 , H04L12/18
Abstract: A C-RAN includes a plurality of remote units (RUs), each being configured to exchange RF signals with at least one UE. The C-RAN also includes a central unit communicatively coupled to the plurality of RUs via a fronthaul interface. The central unit is configured to determine sets of data to be sent to a plurality of remote units across the fronthaul interface. The central unit is also configured to determine a mapping of each of the sets of data to at least one of the plurality of remote units. The central unit is also configured to add a respective indicator, based on the mapping, to each set of data, wherein each respective indicator indicates each remote unit that the respective set of data is intended for. The central unit is also configured to broadcast the sets of data, each with the respective indicator, to the plurality of remote units.
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公开(公告)号：US11405845B2
公开(公告)日：2022-08-02
申请号：US16918738
申请日：2020-07-01
Applicant: CommScope Technologies LLC
Inventor： Irfaan Ahamed Salahuddeen , Raymond Zachary Lovell
IPC: H04W40/02 , H04L69/164 , H04W4/06 , H04L69/22 , H04L5/00 , H04W72/04 , H04W24/10 , H04L12/18 , H04W92/20 , H04W88/08
Abstract: A C-RAN includes a plurality of remote units (RUs), each being configured to exchange RF signals with at least one UE. The C-RAN also includes a central unit communicatively coupled to the plurality of RUs via a fronthaul interface. The fronthaul interface includes at least one ETHERNET switch configured to perform deep packet inspection on a received packet in order to determine whether an RU identification is present in the packet. The RU identification, if present in the packet, indicates at least one RU the packet is intended for. When the RU identification is present in the packet, the at least one ETHERNET switch is also configured to communicate, for each of the at least one RU, at least a portion of the packet to the RU based on a comparison of the RU identification with at least one bit pattern for the RU.
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公开(公告)号：US20220174577A1
公开(公告)日：2022-06-02
申请号：US17674433
申请日：2022-02-17
Applicant: CommScope Technologies LLC
IPC: H04W40/02 , H04L69/164 , H04W4/06 , H04L69/22 , H04L5/00 , H04W72/04 , H04W24/10 , H04W92/20 , H04W88/08
Abstract: A C-RAN includes a plurality of remote units; a central unit communicatively coupled to the remote units via a fronthaul network; and an entity coupled to the fronthaul network configured to perform deep packet inspection. The central unit is configured to determine sets of data to be sent to respective subsets of remote units across the fronthaul network and determine a mapping of each of the sets of data to a respective one of the subsets of remote units. The central unit is also configured to add a respective indicator, based on the mapping, to packets for each set of data, wherein each respective indicator indicates each remote unit that the respective packet and set of data is intended for. The central unit is also configured to transmit the packets for the sets of data, each with the respective indicator, to the entity over the fronthaul network.
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公开(公告)号：US20220078631A1
公开(公告)日：2022-03-10
申请号：US17469527
申请日：2021-09-08
Applicant: CommScope Technologies LLC
Inventor： Irfaan Ahamed Salahuddeen , Balaji B Raghothaman , Calogero Armao
IPC: H04W16/18 , H04L12/761
Abstract: One embodiment is directed to a system comprising a distributed unit (DU) and a plurality of remote units (RUs) to wirelessly transmit and receive radio frequency signals to and from the user equipment using a wireless interface. The DU and RUs are communicatively coupled to each other over a fronthaul and are configured to communicate over the fronthaul using an O-RAN fronthaul interface. Management-plane functionality in the system is configured to define a respective transport flow for one or more processing elements using an RU interface that specifies one or more multicast addresses in order to support multicast transmission from the DU to multiple RUs. In another embodiment, each RU is configured to advertise, during a capability discovery process, capabilities related to implementing a switched network shared cell configuration.
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