US 10,764,876 B2Granted

System and method for transmitting and receiving control channels

AssigneeFuturewei Technologies, Inc.

InventorsPhilippe Sartori, Bingyu Qu, Weimin Xiao, Brian Classon, Vipul Desai

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Abstract

A method for transmitting resource allocation information to a wireless node in a communications system includes selecting a search space from one of a first search space and a second search space, the first search space associated with a first set of control channel parameters and the second search space associated with a second set of control channel parameters. The method also includes modulating the first control information, and mapping the modulated first control information onto the selected search space in a first subframe, where at least one of modulating the first control information and mapping the modulated first control information is according to a selected set of control channel parameters associated with the selected search space. The method further includes transmitting the first subframe to the wireless node, and transmitting a first parameter indicator identifying the selected set of control channel parameters to the wireless node.

Claims34

Dependent claims

A method comprising:

transmitting, by a communications controller to a wireless node using higher layer signaling, a first parameter indicator identifying a first set of control channel parameters associated with a wireless node-specific search space locatable in any symbol of a time slot of a subframe, the first set of control channel parameters comprising an aggregation level and indicating a time and frequency resource used for the wireless node-specific search space;
modulating, by the communications controller, control information, the control information pertaining to configuration of a data channel;
mapping, by the communications controller, the modulated control information onto the time and frequency resource for the wireless node-specific search space in the time slot of the subframe;
the time slot including a common search space in addition to the wireless node-specific search space, a second set of control channel parameters being associated with the common search space;
at least one of the modulating the control information and the mapping the modulated control information being performed according to the first set of control channel parameters associated with the wireless node-specific search space;
and
a location of the modulated control information being designated by search space rules for the wireless node-specific search space;
and
transmitting, by the communications controller, the time slot to the wireless node.

6 more elements

A method comprising:

receiving, by a wireless node via higher layer signaling, a first parameter indicator identifying a first set of control channel parameters associated with a wireless node-specific search space locatable in any symbol of a time slot of a subframe, the first set of control channel parameters comprising an aggregation level and indicating a time and frequency resource used for the wireless node-specific search space;
receiving, by the wireless node, the time slot of the subframe from a communications controller, the time slot comprising modulated control information mapped to the time and frequency resource for the wireless node-specific search space in the time slot of the subframe, and the modulated control information pertaining to configuration of a data channel;
the time slot including a common search space in addition to the wireless node-specific search space, a second set of control channel parameters being associated with the common search space;
and
a location of the modulated control information being designated by search space rules for the wireless node-specific search space;
searching, by the wireless node, for the modulated control information in the wireless node-specific search space;
and
demodulating, by the wireless node, the modulated control information, at least one of the searching for the modulated control information and the demodulating the modulated control information being performed according to the first set of control channel parameters.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/149,689Filed 9 May 2016 · continuation
Priority: 1 Apr 2011
Published: US 2016/0255612 A11 Sep 2016
Granted: 1 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04W 24/10
Supervisory, monitoring or testing arrangements: scheduling measurement reports ; Arrangements for measurement reports
H04W 48/12
Access restriction or access information delivery, e.g. discovery data delivery: using downlink control channel
H04W 72/20
Local resource management: control channels or signalling for resource management

Family

Application61/471,055Us provisional application · filed 1 Apr 2011
Application61/470,940Us provisional application · filed 1 Apr 2011
Application61/471,049Us provisional application · filed 1 Apr 2011
Application61/471,061Us provisional application · filed 1 Apr 2011
Application13/436,590Parent of this continuation · filed 30 Mar 2012
US 2016/0255612 A1Pre-grant publication · published 1 Sep 2016
US 9,338,730 B2Parent of this continuation
US 2012/0252447 A1Published application
US 10,764,876 B2This patent

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