Parallel Wireless, Inc.

Genband US LLC

Ribbon Communications Operating Company, Inc.

Zeev V Lubenski

Kaitki Agarwal

Yang Cao

Jitender Arora

Rajesh Kumar Mishra

Prashanth Rao

Rahul Atri

Steven Paul Papa

Sridhar Donepudi

Murali Talluri

Sumit Garg

Michael Yasuhiro Saji

Michael Saji

A system, method, and computer program are disclosed to provide an ad-hoc network of network nodes of caching content at the network nodes. A coordination server performing as a manager or controller determines the network node to cache content for a group of user equipments (UEs) attached to a first base station. The coordination server reassigns the network node that cache the content for the group of UEs when a user equipment (UE) moves from the first base station to a second base station.

Role assignment for caching content at network nodes

A method for Xx/Xn interface communication is disclosed, comprising: at an Xx/Xn gateway for communicating with, and coupled to, a first and a second radio access network (RAN), receiving messages from the first RAN according to a first Xx/Xn protocol and mapping the received messages to a second Xx/Xn protocol for transmission to the second RAN; maintaining state of one of the first RAN or the second RAN at the Xx/Xn gateway; executing executable code received at an interpreter at the Xx/Xn gateway as part of the received messages; altering the maintained state based on the executed executable code; and receiving and decoding an initial Xx/Xn message from the first RAN; identifying specific strings in the initial Xx/Xn message; matching the identified specific strings in a database of stored scripts; and performing a transformation on the initial Xx/Xn message, the transformation being retrieved from the database for stored scripts, the stored scripts being transformations.

Xx/Xn protocol programmability

Systems and methods are disclosed for a 3G gateway. In one embodiment, a system is disclosed, comprising a gateway situated between a 3G radio access network (RAN) and a core network, the gateway providing resource management for a nodeB, and providing routing and node management for another base station, wherein the base station may be configured to provide, as a virtual RNC, radio resource control, power control, ciphering, and multiplexing of multiple users onto a transmission path for a first mobile device attached to the nodeB; the gateway may be configured to relay traffic for a second mobile device attached to the base station; and the gateway may be configured to relay traffic to the core network from both the nodeB and the base station via an IuCS interface and an IuPS interface.

IuGW architecture

A method is disclosed for providing IP access across packet data network gateways (PGWs), comprising: receiving, from a UE, at a coordinating node, an attach request; sending a request to create a first new session to a first PGW; sending a request to create a second new session to a second PGW; receiving, from the first PGW and at the coordinating node, a first request for policies for the UE; receiving, from the second PGW and at the coordinating node, a second request for policies for the UE; opening a first data tunnel from the coordinating node to the first PGW; opening a second data tunnel from the coordinating node to the second PGW without closing the first data tunnel; and opening a data tunnel between the UE and the coordinating node for providing IP access to both the first PGW and the second PGW.

Inter-PGW handover architecture

A system for an enhanced X2 interface in a mobile operator core network is disclosed, comprising: a Long Term Evolution (LTE) core network packet data network gateway (PGW); an evolved NodeB (eNodeB) connected to the LTE PGW; a Wi-Fi access point (AP) connected to the LTE PGW via a wireless local area network (WLAN) gateway; and a coordinating node positioned as a gateway between the LTE PGW and the eNodeB, and positioned as a gateway between the LTE PGW and the Wi-Fi AP, the coordinating node further comprising: a network address translation (NAT) module; and a protocol module for communicating to the eNodeB and the Wi-Fi AP to request inter-radio technology (inter-RAT) handovers of a user equipment (UE) from the eNodeB to the Wi-Fi AP and to forward packets intended for the UE from the eNodeB to the Wi-Fi AP.

Enhanced X2 protocol

Systems and methods for cell ID disambiguation are described. In one embodiment, a method may be disclosed for constructing a neighbor table, comprising: receiving, at a mobile base station, a physical cell identifier (PCI) of a detected neighbor base station from a user equipment (UE); receiving a global positioning system (GPS) position of the mobile base station; and associating the GPS position of the mobile base station with the PCI of the detected neighbor base station in a neighbor table.

Cell ID disambiguation

A system is disclosed for providing configurable flow management, comprising: a first base station coupled to a user device and with an established control connection with the user device; and a coordinating node coupled to the first base station and coupled to a core network, thereby providing a gateway for the first base station and the user device to the core network, the core network further comprising a policy and charging rules function (PCRF) node with a database of policy rules, wherein the coordinating node is configured to retrieve policy rules from the PCRF node, to enable enforcement of retrieved policy rules on flows from the user device passing through the coordinating node, and to transmit policy rules to the first base station for enforcement at the first base station.

Intelligent RAN flow management and distributed policy enforcement

Embodiments of methods and systems for mobility in enterprise networks are presented. The methods and systems described herein provide a mobile wireless device with access to both an enterprise network and an external network by establishing a proxy connection between a gateway component of the enterprise network and a gateway component of the external network. Such embodiments may maintain the security of the enterprise network. Additionally, such embodiments may not require modification of the User Equipment (UE) or of components of the external network. Indeed, the methods and systems may operate transparently to both the UE and to components of the external network.

Mobility in enterprise networks

Role assignment for caching

A method for topology hiding is disclosed, comprising: receiving, at a gateway, the gateway positioned between a core network and a radio access network, a configuration information request from a base station; analyzing, at the gateway, a topology of the radio access network, the radio access network including the base station; grouping, at the gateway, the base station into a first group based on the topology; sending, from the gateway to the base station, a grouping message to indicate that the base station be placed in the first group; and terminating connections from the core network to one or more base stations in the first group at the gateway as a back-to-back proxy, thereby hiding the topology of the radio access network from the core network.

Base station grouping for topology hiding

Systems and methods for performing handover coordination between base stations are disclosed. In a first embodiment, a method is disclosed, comprising: receiving, at a base station, a first serving cell signal measurement and a first neighbor cell signal measurement from a particular user equipment (UE); sending an adjustment message, from the base station to the UE, containing a cell-specific offset of the serving cell and a cell-specific offset of the neighbor cell in a reporting threshold based on at least one handover adjustment factor received from a coordinating node; receiving, at the base station and subsequent to adjusting the cell-specific offsets, a second serving cell signal measurement and a second neighbor cell signal measurement; and deciding whether to trigger a handover event based on the first and the second serving cell signal measurement and the first and the second neighbor cell signal measurement and the cell-specific offsets.

Hand-in with topology hiding

A method is disclosed for avoiding unnecessary keepalive data transfers, comprising: receiving, at an upstream TCP connection endpoint in a radio access network (RAN) from an operator core network, an Internet Protocol (IP) packet; performing, at the upstream TCP connection endpoint, shallow packet inspection on the IP packet; and forwarding the IP packet to the downstream TCP connection endpoint in the RAN if the IP packet is not a keepalive packet, based on the performed shallow packet inspection. The upstream TCP connection endpoint in the RAN may be one of a nodeB, an eNodeB, a base transceiver station (BTS), a coordinating server, and a mobile edge computing (MEC) gateway. The downstream TCP connection endpoint in the RAN may be one of the nodeB, the eNodeB, or the base transceiver station (BTS).

Growing community of inventors

North Andover, MA, United States of America

Zeev V Lubenski