Dynamic carrier assignment of carrier aggregation in an LTE-advanced system

摘要

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.

主权项

1. A method, comprising:
determining whether any secondary component carrier is available for utilization by a first communication device which utilizes a first component carrier as a primary component carrier; determining a first value representative of an amount of resources required for the first communication device; determining a second value representative of an amount of resources of the first component carrier that is available for utilization by the first communication device; determining a ratio between the first value and the second value; and activating carrier aggregation of the first component carrier and a second component carrier such that a transmission need of the first communication device is satisfied by the first communication device utilizing the first component carrier as the primary component carrier and the second component carrier as a secondary component carrier, the activating being in response to an activation condition related to the ratio between the first value and the second value being satisfied.