Mavenir Systems, Inc.

Mavenir Networks, Inc.

Wessam Afifi Ahmed

Sridhar Rajagopal

Young-Han Nam

Neil Philip Piercy

Charles Santhosam Lourdu Raja

Atanu Guchhait

Hersh Vardhan Shukla

Tarak Taranekar

Ajay Nigam

Rasiklal Kachhla

Ajit Ashok Joshi

John Melvin John William

Brijesh Unnikrishnan

Radhakrishna Arvapally

Somashekar Mudaraddi

Rajarajan Sivaraj

Peter McCANN

Ana Lucia Pinheiro

Rangsan Leelahakriengkrai

Prateek Bidwalkar

Sung Joon Maeng

A method of generating and applying combining weights to Physical Uplink Shared Channel (PUSCH) symbols for Open Radio Access Network (O-RAN) fronthaul interface between O-RAN radio unit (O-RU) and O-RAN distributed unit (O-DU) includes: calculating, by the O-DU, a codebook; sending, by the O-DU, the codebook to O-RU; generating, by the O-RU, an RU combiner matrix, using the codebook; applying, by the O-RU, the RU combiner matrix to In-phase and Quadrature (IQ) data to generate compressed IQ data; sending, by the O-RU, the compressed IQ data to O-DU; calculating, by the O-DU, a DU combiner matrix from compressed demodulation reference signal (DMRS); and applying, by the O-DU, the DU combiner matrix to data.

Method for enabling efficient MIMO processing for O-RAN fronthaul interface in cloud RAN systems

There is provided, an open radio access network distributed unit (O-DU) having an electronic module that performs an FS-8 Radio Access Technology (RAT) functionality.

System and method to configure O-RAN fronthaul to support 2nd-generation (2G), 3rd-generation (3G) and NB-IOT

A wireless communications system includes radio components (O-RU, O-DU, O-CU), an ORAN Non-Real-Time RAN Intelligent Controller (Non-RT RIC) framework, an O-RU Controller and a CBSD Controller interfacing with a Spectrum Access System (SAS) using the Wireless Innovation Forum (WINNF) CBSD-SAS Interface. An example of CBSD Controller is a Domain Proxy (DP) defined by WINNF. The CBSD Controller is disclosed as an application belonging to the Non-RT RIC. This application could be an rApp. The Non RT MC Framework operates as a broker to route information between the O-RU Controller and the CBSD Controller. Data types are defined to be exchanged over the R1 interface.

Supporting CBRS operation using non-real time ran intelligent controller (NON-RT RIC) applications

There is provided a method of operating an Open Radio Access Network (O-RAN) having an O-RAN radio unit (O-RU) and an O-RU controller. The method includes sending, from the O-RU to the O-RU controller, (i) a message informing that the O-RU supports a feature such as (a) a plurality of delay management profiles, and/or (b) a plurality of transmission window sizes, and (ii) a report of capabilities of the O-RU, where the report includes a parameter such as (a) a quantity of supported delay management profiles, (b) supported window sizes for each of the plurality of delay management profiles, and/or (c) a supported window offset for each of the plurality of delay management profiles. The O-RU controller configures the O-RU based on the feature and the parameter.

Traffic timing control for an open radio access network in a cloud radio access network system

There is provided an Open Radio Access Network (O-RAN) that includes a fronthaul interface over which an O-RAN Distributed Unit (O-DU) and an O-RAN Radio Unit (O-RU) communicate with one another and exchange O-RAN standard defined user-plane (U-plane) packets and control-place (C-Plane) packets. The fronthaul interface carries control and management information via management-plane (M-Plane) message exchange, and timing synchronization is achieved in accordance with synchronization-plane (S-Plane) procedures, and the O-RAN accommodates communications via 2G and 3G based mobile networks.

Enabling 2G and 3G cellular radio communications over a packet-based open radio access network fronthaul interface

There is provided a system, method, and interfaces for Radio Access Networks and Cloud Radio Access Networks.

Method and apparatus for long term evolution operation in unlicensed and shared spectrum for cloud radio access networks

A cloud radio access network (CRAN) system includes a baseband unit (BBU) and a radio unit (RU) remote from the BBU. The fronthaul interface between the RU and the BBU includes a radio frequency interface (RF) functionality implemented in the RU, and implementation of asymmetrical physical layer (PHY) functionality split between the BBU and RU. The asymmetrical physical layer (PHY) functionality split includes: downlink (DL) antenna port mapping and DL precoding implemented in the RU; and the split of the PHY functionality for uplink (UL) at the antenna port mapping in the BBU. For the DL, precoding and resource element (RE) mapping to frequency resources is implemented in BBU, and RE mapping for antenna ports is implemented in the RU|[WA1]. The split also provides support for license-assisted access (LAA) in the CRAN system.

Method and apparatus for flexible fronthaul physical layer split for cloud radio access networks

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McKinney, TX, United States of America

Wessam Afifi Ahmed