Frequency band selection in a wireless communication system

摘要

In systems and method of frequency band selection, a mobility and an application requirement of an application running on a wireless device are determined for a wireless device in communication with an access node over a first frequency band using a first radio access technology. When it is detecting that a signal level of the first frequency band meets a handover criteria, a message is sent to the wireless device comprising information of a second frequency band and a third frequency band, wherein the second and third frequency bands use a second radio access technology. The wireless device is instructed to communicate with the access node using one of the second and third frequency bands based on the determined mobility and application requirement.

主权项

1. A method of frequency band selection using one or more network nodes in a wireless communication system, comprising:
at the one or more network nodes: determining a mobility of a wireless device based on a change to an assigned modulation and coding scheme over a period of time, wherein the wireless device is-in communication with an access node over a first frequency band using a first radio access technology; determining a traffic class indicator associated with an application running on the wireless device; detecting that a signal level of the first frequency band meets a handover criteria; sending, to the wireless device, a message that includes information about a second and a third frequency bands and a connection release message, wherein the second and third frequency bands use a second radio access technology; based on the determined mobility and traffic class indicator, instructing the wireless device to communicate with the access node using the second frequency band of the second radio access technology; determining that the second frequency band of the second radio access technology is unavailable for communication by the wireless device; and, establishing communication between the access node and the wireless device to change to using the third frequency band based on the message.