Abstract:
Systems and methods for dynamic allocation of spectrum among cross-interfering radio nodes of wireless communications systems are disclosed. Multiple radio nodes may be deployed within a geographical region, and each radio node may support wireless communication over spectrum in which access is arbitrated by an external service not under the control of the operator of the radio node. Each radio node is configured to detect radio conditions which may indicate coexistence between the radio node and a neighboring radio node. A network entity associated with the radio node obtains radio condition information and determines a coexistence status between the radio node and the neighboring radio node, such as whether coexistence with the neighboring radio node is tolerable or intolerable. The network entity reports an indication of the coexistence status to a spectrum server, and the spectrum server reallocates the spectrum among the radio nodes.
Abstract:
Systems and methods are disclosed for managing an aggregated self-organizing network (A-SON). In such, a plurality of small cells is grouped into clusters using available topology information. In one implementation, a subset of clusters is assigned to groups of a first type, such that the clusters within a group of the first type have minimal RF connectivity. For example, scanning or updating of RF parameters may then be coordinated such that adjacent clusters do not scan or update simultaneously but clusters within groups of the first type do have at least partially overlapping scans or updates. Similarly, subsets of clusters may be assigned to first and second groups of a second type, such that the clusters within a first group of the second type have sufficient coverage to provide RF connectivity to clusters within the second group, if the second group encounters a service interruption. Other benefits are also described.
Abstract:
Methods, devices, and computer program products facilitate proper allocation of network resource in a self-configuring network. The initial configuration space associated with the self-configuring network is updated based on information received from the network that describes particular adequacies or inadequacies of the initial configuration space. Based on the received information, the configuration space is updated to accommodate proper and efficient operations of the network.
Abstract:
Systems and method for hand-in of mobile users into a local RAN, such as UMTS ERAN, deployment are provided. In accordance with various embodiments, a local RAN gateway is utilized to multicast relocation request messages to multiple target ERANs pursuant to the receipt of a measurement report from a user equipment. By virtue of either a pre-configured relocation request acknowledgement or a pair of generated tokens, each of the multiple target ERANs may allocate the appropriate resources for the user equipment to be handed into one of the multiple target ERANs. In accordance with another embodiment, the local RAN gateway additionally multicasts a user equipment uplink layer configuration to each of the multiple target ERANs. In accordance with yet another embodiment, the local RAN gateway receives the timing difference between a current cell and target cell to disambiguate the target cell and corresponding ERAN.
Abstract:
A system and method for establishing a multimedia session between a wireless user terminal and a network device. Embodiments include systems and methods for receiving a request from a wireless terminal initiating a call event to the network device; generating and sending a multimedia session invitation to a multimedia call control entity requesting a multimedia session with the network device; receiving a multimedia status message from the multimedia call control entity indicating the progress of initiating the multimedia session; and triggering setup of a radio access bearer to handle the multimedia session in response to the multimedia status message.
Abstract:
Methods, apparatus and computer program products for providing an autonomously organizing network enable a cellular network to maintain stable operation despite unpredictable addition or removal of network devices. In addition, a network operator can create a scalable deployment that provides for operational efficiency and reduced cost burden of new equipment by enabling many existing processes to remain relevant. A method for providing such a network provides for collecting radio data from a first peer device, collecting topological data from the first peer device or a second peer device, creating a message from the topological and the radio data, and sending the message to a network device.
Abstract:
Apparatus and methods for reconfiguration of a communication environment based on loading requirements. Network operations are monitored and analyzed to determine loading balance across the network or a portion thereof. Where warranted, the network is reconfigured to balance the load across multiple network entities. For example, in a cellular-type of network, traffic loads and throughput requirements are analyzed for the access points and their user equipment. Where loading imbalances occur, the cell coverage areas of one or more access points can be reconfigured to alleviate bottlenecks or improve balancing.
Abstract:
Methods and apparatus are described that enable a deployment of a system of wireless nodes, e.g., femtocells, which can self-configure themselves into a balanced and optimized wireless network. In various embodiments, access points switch between a network monitoring mode in which network monitoring is performed and a communications mode in which the access point serves one or more wireless terminals and communicates traffic data to/from the wireless terminals. Traffic data transmission to wireless terminals are not supported in network monitoring mode. Based on information gathered from one or more access nodes while they operating in network monitoring mode of operation, access point configuration information is generated and one or more access points are automatically configured.
Abstract:
Systems and methods disclosed detect significant changes in the RN topology after an E-RAN system has been installed and provisioned. If a significant change is detected, the operator is notified through an alarm, and the operator can take action to correct it. For example, an RN whose location was moved may be disabled. Alternatively, the movement operation may be approved and the alarm cleared so long as the operation falls within certain approved guidelines or categories, e.g., is appropriately reported and a new location noted.
Abstract:
Discovery of a neighbor radio access system by a user mobile communications device serviced in a radio access network (RAN) for reporting to a serving system in the RAN. User mobile communications device serviced by a RAN is configured to scan one or more frequency ranges (e.g., bands) to discover other neighbor radio access systems. This is opposed to, for example, the user mobile communications device only searching for transmitted communications signals at specific center frequency (e.g., an EARFCN). There may be other radio access systems that operate neighbor cells and in other frequency bands in proximity the RAN serving the user mobile communications device. Discovered neighboring radio access systems can be reported by the user mobile communications device to its serving RAN in a measurement report, which can then be used by the serving RAN for other functionalities, such as trigger handovers of user mobile communications device for example.