Handling band combinations with reduced performance in carrier aggregation

摘要

Techniques are disclosed for identifying carrier-aggregation band combinations that may be supported by a mobile terminal with limited performance. According to one example method, a mobile terminal sends (710) a band capability information element to the network (e.g., to a 3GPP eNB). The band capability information element contains data indicating which band combinations the mobile terminal supports for carrier aggregation. In addition, the mobile terminal sends (720) additional information (e.g., one or more new parameters) associated with at least one specific band combination. In some cases, this new information indicates that a specific band combination has limited support. In these or in other embodiments, the new information contains information about an amount or type of limitation. This latter information may be present on its own, or in combination with the information that more generally indicates that the mobile terminal is capable of only limited support for a specific band combination.

主权项

1. A method, in a mobile terminal, for signaling capability information in a wireless communication network, the method comprising:
sending a band capability information element to a network node in the wireless communication network, the band capability information element indicating one or more frequency band combinations supported by the mobile terminal for carrier aggregation; and sending additional information corresponding to at least one of the frequency band combinations, the additional information indicating limited support for the at least one frequency band combination, relative to a predetermined level of support, wherein the additional information is provided as one or more optional fields in the band capability information element.