Methods and arrangements in a telecommunication system
First Claim
1. A User Equipment, UE, connectable over multiple carriers to a network node of a wireless communication system wherein the UE is capable of discontinuous reception (DRX), the UE comprising:
- a processor configured to enter a first DRX state on a non-anchor carrier of the multiple carriers where the UE does not monitor system signaling on the non-anchor carrier over multiple DRX cycles when in the first DRX state; and
a receiver configured to receive control information on an anchor carrier controlling transition between the first DRX state of the non-anchor carrier and a second DRX state of the non-anchor carrier where the UE is required to periodically monitor system signaling on the non-anchor carrier in the second DRX state;
wherein the anchor carrier is used for control signaling and system information, andwherein the non-anchor carrier is only used to carry data.
1 Assignment
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Accused Products
Abstract
The present invention relates to methods and arrangements in a multi-carrier system. It also assumes independent DRX (Discontinuous reception) functionality on respective component carriers and the possibility for one carrier, e.g. the anchor carrier to initiate a change of DRX state for another component carrier. The basic concept of the present invention is to introduce a new “dormant” state in the DRX logic, whereby the dormant state can be used for non-anchor carrier components. The dormant DRX state implies that a carrier of a UE having this state is not required to monitor system signaling. In embodiments of the present invention this new state is introduced for a particular component carrier (e.g. non-anchor component carrier) for a UE operating in a multi-carrier system, and how to perform the transitions to and from the dormant DRX state implicitly, e.g. based on configured timer(s) for the component carrier or explicit signaling in a different (e.g. anchor) component carriers.
7 Citations
12 Claims
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1. A User Equipment, UE, connectable over multiple carriers to a network node of a wireless communication system wherein the UE is capable of discontinuous reception (DRX), the UE comprising:
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a processor configured to enter a first DRX state on a non-anchor carrier of the multiple carriers where the UE does not monitor system signaling on the non-anchor carrier over multiple DRX cycles when in the first DRX state; and a receiver configured to receive control information on an anchor carrier controlling transition between the first DRX state of the non-anchor carrier and a second DRX state of the non-anchor carrier where the UE is required to periodically monitor system signaling on the non-anchor carrier in the second DRX state; wherein the anchor carrier is used for control signaling and system information, and wherein the non-anchor carrier is only used to carry data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method in a User Equipment, UE, connectable over multiple carriers to a network node of a wireless communication system and capable of discontinuous reception (DRX), the method comprising:
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entering a first DRX state on a non-anchor carrier of the multiple carriers where the UE does not monitor system signaling on the non-anchor carrier over multiple DRX cycles in the first DRX state; and receiving control information on an anchor carrier controlling transition between the first DRX state and a second DRX state of the non-anchor carrier where the UE is required to periodically monitor system signaling on the non-anchor carrier in the second DRX state; wherein the anchor carrier is used for control signaling and system information, and wherein the non-anchor carrier is only used to carry data. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification