Abstract: Methods and apparatus for allocating scrambling codes to cells of a wireless network. In an example method, current scrambling code allocation information for a plurality of cells and network configuration information for a radio access network are received. A reallocation of scrambling codes to the plurality of cells is computed, based on the current scrambling code allocation information and the network configuration information, using a metaheuristic algorithm. A change in scrambling code for at least one of the plurality of cells is then triggered, based on the computed reallocation. In some embodiments, the metaheuristic algorithm is based on an objective function that comprises a summation of interference metrics for each of the plurality of cells, wherein the interference metrics depend on scrambling code allocations to the plurality of cells. In some embodiments, a simulated annealing metaheuristic is used.

Abstract: A system and method for improving a network topology to minimize load imbalance and latency between network nodes is provided. A network performance and configuration tool receives performance data from payload handling nodes, including radio stations, transport nodes and payload gateways to calculate a current network condition related to the current network topology. A revised network topology is determined by selecting a radio station to re-home from its parent transport node and payload gateway to a newly selected transport node and payload gateway. The revised network condition is calculated and compared to current network condition to determine if the re-homing should be accepted. The process can be repeated for a number of iterations until an optimized network topology is found. Configuration instructions are then transmitted to any radio stations that have been re-homed in the final network topology.

Abstract: A network node in a communication network provides Automated Neighboring Relation (ANR) data to User Equipments (UEs). The network node collects information of ongoing end-to-end traffic sessions from other network nodes in the communication network, and determines service characteristics of Radio Base Stations (RBSs) based on the collected information. For each RBS, the network node creates an ANR record indicating the determined service characteristics of neighboring RBSs. The network node then transmits the ANR record to each RBS to cause the RBS to propagate the ANR record to attached UEs.

Abstract: According to an aspect, an existing end-to-end bearer data path of communication between a wireless device and an endpoint in a core network is modified. The wireless device receives parametric information identifying respective service capabilities of network nodes in the core network that are available for forming alternate end-to-end bearer data paths of communication between the wireless device and the endpoint. The parametric information is used to determine that a more favorable end-to-end bearer data path of communication between the wireless device and the endpoint is available. The more favorable end-to-end bearer data path has a more favorable service capability in the core network as compared to the existing end-to-end bearer data path. The wireless device requests a path modification from the existing end-to-end bearer data path to the more favorable end-to-end bearer data path.

Abstract: Methods and apparatus for allocating scrambling codes to cells of a wireless network. In an example method, current scrambling code allocation information for a plurality of cells and network configuration information for a radio access network are received. A reallocation of scrambling codes to the plurality of cells is computed, based on the current scrambling code allocation information and the network configuration information, using a metaheuristic algorithm. A change in scrambling code for at least one of the plurality of cells is then triggered, based on the computed reallocation. In some embodiments, the metaheuristic algorithm is based on an objective function that comprises a summation of interference metrics for each of the plurality of cells, wherein the interference metrics depend on scrambling code allocations to the plurality of cells. In some embodiments, a simulated annealing metaheuristic is used.

Abstract: Methods and apparatus for allocating scrambling codes to cells of a wireless network. In an example method, current scrambling code allocation information for a plurality of cells and network configuration information for a radio access network are received (310). A reallocation of scrambling codes to the plurality of cells is computed (320), based on the current scrambling code allocation information and the network configuration information, using a metaheuristic algorithm. A change in scrambling code for at least one of the plurality of cells is then triggered (330), based on the computed reallocation. In some embodiments, the metaheuristic algorithm is based on an objective function that comprises a summation of interference metrics for each of the plurality of cells, wherein the interference metrics depend on scrambling code allocations to the plurality of cells. In some embodiments, a simulated annealing metaheuristic is used.

Abstract: A network node in a communication network provides Automated Neighboring Relation (ANR) data to User Equipments (UEs). The network node collects information of ongoing end-to-end traffic sessions from other network nodes in the communication network, and determines service characteristics of Radio Base Stations (RBSs) based on the collected information. For each RBS, the network node creates an ANR record indicating the determined service characteristics of neighboring RBSs. The network node then transmits the ANR record to each RBS to cause the RBS to propagate the ANR record to attached UEs.

Abstract: Techniques and apparatus disclosed herein include methods for allocating data sessions among two radio access networks (RANs), as might be carried out in a network management node operatively connected to one or more network nodes in each of a first RAN and a second RAN, where the first and second RANs have overlapping coverage areas. An example method includes receiving (401) current data session information and network performance information for each of the first and second RANs, from the one or more network nodes, and computing (402) a reallocation of data sessions among the first and second RANs, based on the performance information and configuration data for the first and second RANs, using a metaheuristic algorithm. The method further includes triggering (403, 404) a transfer of one or more current data sessions between the first and second RANs, based on the computed reallocation.

Abstract: According to an aspect, an existing end-to-end bearer data path of communication between a wireless device and an endpoint in a core network is modified. The wireless device receives parametric information identifying respective service capabilities of network nodes in the core network that are available for forming alternate end-to-end bearer data paths of communication between the wireless device and the endpoint. The parametric information is used to determine that a more favorable end-to-end bearer data path of communication between the wireless device and the endpoint is available. The more favorable end-to-end bearer data path has a more favorable service capability in the core network as compared to the existing end-to-end bearer data path. The wireless device requests a path modification from the existing end-to-end bearer data path to the more favorable end-to-end bearer data path.

Abstract: A system and method for improving a network topology to minimize load imbalance and latency between network nodes is provided. A network performance and configuration tool receives performance data from payload handling nodes, including radio stations, transport nodes and payload gateways to calculate a current network condition related to the current network topology. A revised network topology is determined by selecting a radio station to re-home from its parent transport node and payload gateway to a newly selected transport node and payload gateway. The revised network condition is calculated and compared to current network condition to determine if the re-homing should be accepted. The process can be repeated for a number of iterations until an optimized network topology is found. Configuration instructions are then transmitted to any radio stations that have been re-homed in the final network topology.

Abstract: Methods and apparatus for allocating scrambling codes to cells of a wireless network. In an example method, current scrambling code allocation information for a plurality of cells and network configuration information for a radio access network are received (310). A reallocation of scrambling codes to the plurality of cells is computed (320), based on the current scrambling code allocation information and the network configuration information, using a metaheuristic algorithm. A change in scrambling code for at least one of the plurality of cells is then triggered (330), based on the computed reallocation. In some embodiments, the metaheuristic algorithm is based on an objective function that comprises a summation of interference metrics for each of the plurality of cells, wherein the interference metrics depend on scrambling code allocations to the plurality of cells. In some embodiments, a simulated annealing metaheuristic is used.

Abstract: The number of active antenna ports used for uplink and/or downlink MIMO transmissions to a given user are dynamically adjusted, based on user data traffic payload size per period of time, and based on RF conditions. An example method, in a radio transceiver that supports two or more MIMO transmission and reception modes, begins with evaluating channel conditions between the radio transceiver and a remote wireless device and comparing a throughput demand for the remote wireless device to a forward link capacity and/or reverse link capacity. A forward link transmission mode or a reverse link transmission mode is changed, based on the channel conditions and the throughput demand. The transmission mode is changed from a first multi-stream mode to a second multi-stream mode having fewer streams than the first multi-stream mode, despite that channel conditions for the corresponding link support the first multi-stream mode.

Abstract: Techniques and apparatus disclosed herein include methods for allocating data sessions among two radio access networks (RANs), as might be carried out in a network management node operatively connected to one or more network nodes in each of a first RAN and a second RAN, where the first and second RANs have overlapping coverage areas. An example method includes receiving (401) current data session information and network performance information for each of the first and second RANs, from the one or more network nodes, and computing (402) a reallocation of data sessions among the first and second RANs, based on the performance information and configuration data for the first and second RANs, using a metaheuristic algorithm. The method further includes triggering (403, 404) a transfer of one or more current data sessions between the first and second RANs, based on the computed reallocation.

Abstract: A network node in a mobile network monitors vehicle speed based on the registered User Equipments (UEs)/Vehicles. The network node receives information of the moving UE/Vehicle from other network nodes in the mobile network, and determines the corresponding UE/Vehicle moving speed information based on the collected information. For each UE/Vehicle, the network node creates a speed information record indicating the UE/Vehicle moving speed information. The network node then transmits the speed information record to other messaging nodes in order to (i) send warning message to the moving UE/Vehicle when the speed is about to exceed or has exceeded the speed limit, and (ii) to deliver the speed information record to the responsible/ticketing authorities/entities when the moving UE/Vehicle has violated the speed limitation in a certain area.

Abstract: The number of active antenna ports used for uplink and/or downlink MIMO transmissions to a given user are dynamically adjusted, based on user data traffic payload size per period of time, and based on RF conditions. An example method, in a radio transceiver that supports two or more MIMO transmission and reception modes, begins with evaluating channel conditions between the radio transceiver and a remote wireless device and comparing a throughput demand for the remote wireless device to a forward link capacity and/or reverse link capacity. A forward link transmission mode or a reverse link transmission mode is changed, based on the channel conditions and the throughput demand. The transmission mode is changed from a first multi-stream mode to a second multi-stream mode having fewer streams than the first multi-stream mode, despite that channel conditions for the corresponding link support the first multi-stream mode.

Abstract: A network node in a mobile network monitors vehicle speed based on the registered User Equipments (UEs)/Vehicles. The network node receives information of the moving UE/Vehicle from other network nodes in the mobile network, and determines the corresponding UE/Vehicle moving speed information based on the collected information. For each UE/Vehicle, the network node creates a speed information record indicating the UE/Vehicle moving speed information. The network node then transmits the speed information record to other messaging nodes in order to (i) send warning message to the moving UE/Vehicle when the speed is about to exceed or has exceeded the speed limit, and (ii) to deliver the speed information record to the responsible/ticketing authorities/entities when the moving UE/Vehicle has violated the speed limitation in a certain area.

Abstract: The number of active antenna ports used for uplink and/or downlink MIMO transmissions to a given user are dynamically adjusted, based on user data traffic payload size per period of time, and based on RF conditions. An example method, in a radio transceiver that supports two or more MIMO transmission and reception modes, begins with evaluating channel conditions between the radio transceiver and a remote wireless device and comparing a throughput demand for the remote wireless device to a forward link capacity and/or reverse link capacity. A forward link transmission mode or a reverse link transmission mode is changed, based on the channel conditions and the throughput demand. The transmission mode is changed from a first multi-stream mode to a second multi-stream mode having fewer streams than the first multi-stream mode, despite that channel conditions for the corresponding link support the first multi-stream mode.

Abstract: The number of active antenna ports used for uplink and/or downlink MIMO transmissions to a given user are dynamically adjusted, based on user data traffic payload size per period of time, and based on RF conditions. An example method, in a radio transceiver that supports two or more MIMO transmission and reception modes, begins with evaluating channel conditions between the radio transceiver and a remote wireless device and comparing a throughput demand for the remote wireless device to a forward link capacity and/or reverse link capacity. A forward link transmission mode or a reverse link transmission mode is changed, based on the channel conditions and the throughput demand. The transmission mode is changed from a first multi-stream mode to a second multi-stream mode having fewer streams than the first multi-stream mode, despite that channel conditions for the corresponding link support the first multi-stream mode.

Abstract: A system and method for improving a network topology to minimize load imbalance and latency between network nodes is provided. A network performance and configuration tool receives performance data from payload handling nodes, including radio stations, transport nodes and payload gateways to calculate a current network condition related to the current network topology. A revised network topology is determined by selecting a radio station to re-home from its parent transport node and payload gateway to a newly selected transport node and payload gateway. The revised network condition is calculated and compared to current network condition to determine if the re-homing should be accepted. The process can be repeated for a number of iterations until an optimized network topology is found. Configuration instructions are then transmitted to any radio stations that have been re-homed in the final network topology.

Abstract: A method of iteratively determining an optimal configuration for rehoming a plurality of base stations among a plurality of RNCs is disclosed. In a first iteration, a proposed rehoming configuration and an associated performance metric indicative are determined. The performance metric is indicative of a load imbalance of the proposed rehoming configuration, a quantity of inter-RNC handovers that would be exhibited by the proposed rehoming configuration, or both. A plurality of additional rehoming configurations are iteratively determined by: selecting one of a simulated annealing algorithm, an intensification algorithm, or a diversification algorithm responsive to a type of algorithm used in the preceding iteration, the performance metric of one or more preceding iterations, or both; and performing the selected algorithm to identify an additional rehoming configuration. Responsive to a completion event, a determined rehoming solution having a performance metric exhibiting a greatest improvement is outputted.