Method and apparatus of selecting operating frequency for user equipment in a wireless communications system
AssigneeInnovative Sonic Limited
InventorRichard Lee-Chee Kuo
Life of this patent
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Abstract
In order to prevent from being incapable of receiving Multimedia Broadcast Multicast Service, called MBMS hereinafter, service when a user equipment (UE) has a connection for signaling only, the present invention provides a method of selecting an MBMS operating frequency for the UE in a wireless communications system. The method includes determining a radio bearer state of the UE, and switching a current operating frequency of the UE to a preferred frequency corresponding to an MBMS service prioritized by upper layers when the radio bearer state of the UE is in signaling transmission state.
Claims18
A method for a user equipment of a wireless communications system for selecting an operating frequency corresponding to a multimedia broadcast multicast service, called MBMS service hereinafter, comprising:
- determining by the user equipment a radio bearer state of the user equipment according to an information element “RAB information” of a variable “ESTABLISHED_RABS” stored in the user equipment;
- and
- switching by the user equipment a current operating frequency of the user equipment to a congested preferred frequency corresponding to an MBMS service prioritized by upper layers if the radio bearer state of the user equipment is in a signaling transmission state.
A communications device for selecting an operating frequency corresponding to a multimedia broadcast multicast service, called MBMS service hereinafter, in a wireless communications system, the communications device comprising:
- a control circuit for realizing functions of the communications device;
- a processor installed in the control circuit, for executing a program code to command the control circuit;
- and
- a memory installed in the control circuit and coupled to the processor for storing the program code;
- wherein the program code comprises:
- determining a radio bearer state of the user equipment according to an information element “RAB information” of a variable “ESTABLISHED_RABS” stored in the user equipment;
- and
- switching a current operating frequency to a congested preferred frequency corresponding to an MBMS service prioritized by upper layers if the radio bearer state is in signaling transmission state.
Dependencies are inferred from the claim text.