US 10,594,467 B2Granted

System and method for sharing a control channel for carrier aggregation

AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.

InventorsSean McBeath, Mo-han Fong, Zhijun Cai, Mark Earnshaw, Youn Hyoung Heo

Life of this patent

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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, the method comprising the steps of identifying the number of configured carriers used to communicate with the access device, based on the number of configured carriers used to communicate with the access device, identifying a number of CCE subset candidates to decode and decoding up to the identified number of CCE subset candidates in an attempt to identify the resource grant.

Claims18

Dependent claims

A method for user equipment (UE) in a wireless communication system, the method comprising:

receiving a signal indicating a first carrier index associated with a first carrier and a second carrier index associated with a second carrier;
monitoring a first search space including a first group of physical downlink control channel (PDCCH) candidates, and a second search space including a second group of PDCCH candidates, the first search space and the second search space being on the first carrier, wherein the first group of PDCCH candidates is used to transmit resource grants for the first carrier, and the second group of PDCCH candidates is used to transmit resource grants for the second carrier;
receiving a resource grant via at least one PDCCH candidate of the first or second group of PDCCH candidates, the resource grant including a field identifying the first carrier index or the second carrier index;
and
determining that the at least one PDCCH candidate is used to transmit resource grants for the first carrier or the second carrier based on priorities of the first carrier and the second carrier, wherein the at least one PDCCH candidate includes an overlapping PDCCH candidate of the first and second groups of PDCCH candidates.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/007,866Filed 13 Jun 2018 · continuation
Priority: 15 Jun 2009
Published: US 2018/0331811 A115 Nov 2018
Granted: 17 Mar 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 5/0091
Arrangements affording multiple use of the transmission path: signalling for the administration of the divided path, e.g. signalling of…
H04L 5/001
The frequencies being orthogonal, e.g. OFDM or DMT: the frequencies being arranged in component carriers
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04L 5/0007
Time-frequency: the frequencies being orthogonal, e.g. OFDM or DMT

Family

Application61/187,070Us provisional application · filed 15 Jun 2009
Application61/258,525Us provisional application · filed 5 Nov 2009
Application61/330,157Us provisional application · filed 30 Apr 2010
Application12/816,104Parent of this continuation · filed 15 Jun 2010
US 2018/0331811 A1Pre-grant publication · published 15 Nov 2018
US 10,027,460 B2Parent of this continuation
US 2010/0316146 A1Published application
US 10,594,467 B2This patent

From the US filing history. Foreign family members aren’t listed.