Abstract:
In a wireless communication system, a base station application hosted on a base station may be configured to change, or switch, a wireless communication device located in the range of a respective cell between an idle state and a connected state.
Abstract:
In an example embodiment, a transmitter of a wireless communication device may incrementally increase a level of transmit power by a predefined amount, based on a channel quality indicator, up to a limited maximum level of transmit power to control the peak transmit power and further may control the Peak-to-Average Power Ratio (PAPR).
Abstract:
Various embodiments of a scheme of dynamic activation and release of carrier aggregation in an LTE-Advanced system are provided. When transmission need of an LTE-Advanced user is large and the user is within coverage of at least one secondary component carrier, carrier aggregation is activated while a certain amount of resource of each component carrier is preserved to support carrier aggregation. This avoids unnecessary activation and waste due to signaling cost. When the primary component carrier of an LTE-Advanced user has sufficient resource to satisfy transmission need of the user or when the user is not within coverage of at least one secondary component carrier, carrier aggregation is released. This minimizes complex measurement and cost of controlling signals due to multi-carrier scheduling.
Abstract:
In an example embodiment, one or more scheduler of base stations may be configured to schedule resource blocks on a frequency band of two adjacent cells to eliminate crossed timeslots interference by selecting different starting points on the frequency band.
Abstract:
In an example embodiment, a transmitter of a wireless communication device may incrementally increase a level of transmit power by a predefined amount, based on a channel quality indicator, up to a limited maximum level of transmit power to control the peak transmit power and further may control the Peak-to-Average Power Ratio (PAPR).
Abstract:
In a wireless communication system, a base station may adopt AMC and HARQ mechanisms to improve the system stability and may further be configured to combine the feedback features of AMC and HARQ to save computing resources.
Abstract:
In an LTE system, to maintain synchronization between different user equipment, a base station may consider one or more factors including the delay in transferring a timing advance command, an amount of time for the user equipment to process the timing advance command, and a period of time for repeated retransmissions of the timing advance command.
Abstract:
In a wireless communication system, a base station may adopt AMC and HARQ mechanisms to improve the system stability and may further be configured to combine the feedback features of AMC and HARQ to save computing resources.
Abstract:
In an example embodiment, one or more scheduler of base stations may be configured to schedule physical resource blocks in considering the respective wireless communication channel quality and neighboring co-channel interferences.
Abstract:
In an LTE system, to configure TDD mode for different cells adjacent to a given cell, an EPC may apply different timeslot proportion configurations to the cells based on the uplink and downlink traffic of each cell.