System and method for sharing a control channel for carrier aggregation
First Claim
1. A method for processing a control channel at a user agent (UA) in a multi-carrier communication system, the method comprising:
- receiving, on a first carrier, an activation signal specifying a second carrier among a plurality of carriers;
activating the second carrier based on the activation signal, wherein a first group of control channel elements (CCEs) corresponding to the first carrier and a second group of CCEs corresponding to the second carrier are on the first carrier;
determining a starting CCE of the second group of CCEs to be offset from a starting CCE of the first group of CCEs by an offset number of CCEs; and
decoding downlink control information (DCI) for the second carrier based on the offset number of CCEs.
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0 Petitions
Accused Products
Abstract
A method for processing a control channel at a user agent (UA) to identify at least one of an uplink and a downlink resource allocated by a resource grant within a multi-carrier communication system wherein resource grants are specified by control channel element (CCE) subset candidates wherein the carriers used for data transmission and reception are configured carriers, the method comprising the steps of receiving activation signals specifying active and deactivated carriers from among the configured carriers, for active carriers (i) identifying a number of CCE subset candidates to decode and (ii) decoding up to the identified number of CCE subset candidates in an attempt to identify the resource grant; and for deactivated carriers, ignoring CCE subset candidates associated with the deactivated carriers.
15 Citations
16 Claims
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1. A method for processing a control channel at a user agent (UA) in a multi-carrier communication system, the method comprising:
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receiving, on a first carrier, an activation signal specifying a second carrier among a plurality of carriers; activating the second carrier based on the activation signal, wherein a first group of control channel elements (CCEs) corresponding to the first carrier and a second group of CCEs corresponding to the second carrier are on the first carrier; determining a starting CCE of the second group of CCEs to be offset from a starting CCE of the first group of CCEs by an offset number of CCEs; and decoding downlink control information (DCI) for the second carrier based on the offset number of CCEs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A user equipment (UE) for a wireless telecommunications system, comprising:
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a receiver configured to receive, on a first carrier, an activation signal specifying a second carrier among a plurality of carriers; and a processor configured to perform operations comprising; activating the second carrier based on the activation signal, wherein a first group of control channel elements (CCEs) corresponding to the first carrier and a second group of CCEs corresponding to the second carrier are on the first carrier; determining a starting CCE of the second group of CCEs to be offset from a starting CCE of the first group of CCEs by an offset number of CCEs; and decoding downlink control information (DCI) for the second carrier based on the offset number of CCEs. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification