Abstract:
A mobile base station is disclosed, comprising: a vehicle bus notification module; an access interface for communicating with a mobile device; a backhaul interface for communicating with an operator core network; and a processor, in communication with the vehicle bus notification module, the access interface, and the backhaul interface, further comprising instructions that, when executed by the processor, perform steps comprising: receiving a vehicle bus low power alert at the vehicle bus notification module; and sending a message via the backhaul interface to the operator core network to request a notification to be sent to the mobile device regarding power off of the mobile base station.
Abstract:
Systems and methods relating to full duplex mesh networks are disclosed. In one embodiment, a mesh network comprising a plurality of transceiver nodes using a single frequency band may be disclosed, each transceiver node comprising: a first transceiver for transmitting and receiving to and from a backhaul node on the single frequency band; and a second transceiver for transmitting and receiving to and from an access node on the single frequency band, each transceiver of each transceiver node performing self-interference cancellation to send and receive full duplex data on the single frequency band at substantially the same time, thereby enabling the creation of a mesh network with at least one transceiver node having both access and backhaul using only the single frequency band.
Abstract:
Systems and methods are disclosed for supporting multi-point transmission. In one embodiment, a system for downlink multi-point transmission are disclosed, comprising: a first base station in radio frequency proximity to a user device and with a established control connection with the user device; a second base station also in radio frequency proximity to the user device; and a coordinating node coupled to the first and the second base station for coordinating transmissions to the first and the second base station to the user device, the coordinating node configured to: select the second base station based on selection criteria, the selection criteria including latency of each base station and perceived signal strength of each base station at the user device; and send scheduling instructions to each of the first and the second base stations to transmit data to the user device.
Abstract:
An approach is disclosed for synchronization of frequency and/or phase in a full duplex network. The method may comprise sending a timing beacon over a single full duplex radio channel from a timing master to a timing slave; receiving the timing beacon over the single full duplex radio channel at the timing slave; sending a retransmitted beacon over the single full duplex radio channel from the timing slave to the timing master; and sending a delta of the timing beacon and the retransmitted beacon from the timing master to the timing slave. The beacon may contain a timestamp. The retransmitted beacon may include a delay calculation. A hybrid analog/digital self-interference cancellation system may be used at the timing master or the timing slave. The method may also include simultaneously sending and receiving the synchronization information over the single full duplex radio channel.
Abstract:
Systems and methods are disclosed for a local evolved packet core (EPC) that interoperates with an eNodeB and a remote EPC. if it is determined that it is possible or likely that the eNodeBs may lose the connection to the remote EPC, or if a connection has been lost, the local EPC may serve as a transparent proxy between the eNodeBs and the remote EPC, identify active sessions and transparently proxy those sessions, destroy or de-allocate unneeded sessions or bearers, and download and synchronize application data and authentication credentials, such as HSS or AAA data, to provide authentication to mobile devices once offline. The use of the local EPC and/or the remote EPC may be toggled, or switched, preemptively or reactively, based on various network conditions. The remote EPC may be disconnected proactively when the local EPC determines that there is no connectivity.
Abstract:
A system is disclosed for providing multicast services to mobile devices, comprising a first network node providing a radio access network to a mobile device; a second network node coupled to the first network node and providing backhaul routing for the first network node; a controller node, coupled to both the first and the second network node and to a multicast packet gateway, wherein the controller node provides a virtualized interface of a single network node to the multicast packet gateway, thereby virtualizing the first and second network nodes to the multicast packet gateway such that the multicast packet gateway may be enabled to send a multicast data stream to the first and the second network nodes via the controller node.
Abstract:
In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network.
Abstract:
In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network.
Abstract:
In this invention, we disclose methods directed toward integrating an ad hoc cellular network into a fixed cellular network. The methods disclosed herein automate the creation and integration of these networks. In additional embodiments, we disclose methods for establishing a stand-alone, ad hoc cellular network. In either of these implementations, we integrate or establish an ad hoc cellular network using mobile ad hoc cellular base stations configured to transmit and receive over a variety of frequencies, protocols, and duplexing schemes. The methods flexibly and dynamically choose an access or backhaul configuration and radio characteristics to optimize network performance. Additional embodiments provide for enhancing an existing network's coverage as needed, establishing a local network in the event of a loss of backhaul coverage to the core network, and providing local wireless access service within the ad hoc cellular network.
Abstract:
In a first embodiment, a method is disclosed for providing uplink scheduling in a cellular radio base station, comprising: an uplink (UL) scheduler running 6 TTI in advance to thereby provide a list of all Radio Network Temporary Identifiers (RNTIs) to be scheduled on a given UL slot; allocating, at a PDCCH resource allocator, control channel elements (CCEs) for all downlink (DL) RNTIs first; allocating, at the PDCCH resource allocator, CCEs for at least one UL RNTI for a first DL slot; placing RNTIs not allocated in the first DL slot in a pending queue.