US 2013/0294547 A1 · Control Channel Demodulating and Decoding Method and Communication Apparatus Using the Same

Abstract

Techniques are provided for a demodulation and decoding method and apparatus for a given user equipment device to receive a one or more Orthogonal Frequency Division Multiplex (OFDM) symbols over a control channel, where the OFDM symbols comprise a plurality of resource element groups distributed in time and frequency that are combined to form control channel elements. Those resource element groups that form specific control channel elements for the user equipment device and those resource element groups that form common control channel elements for one or more user equipment devices including the given user equipment device are identified. The resource element groups that form the specific control channel elements and the resource element groups that form the common control channel elements are demodulated to generate encoded control messages comprising one or more control channel elements.

Claims20

Dependent claims

A demodulation method for encoded control messages, comprising:

at a given user equipment device, receiving one or more Orthogonal Frequency Division Multiplex (OFDM) symbols over a control channel, wherein the OFDM symbols comprise a plurality of resource element groups distributed in time and frequency that are combined to form a plurality of control channel elements;
identifying a first subset of resource element groups and a second subset of resource element groups from among the plurality of resource element groups, wherein the first subset is used to form specific control channel elements for the given user equipment device and the second subset is used to form common control channel elements for one or more user equipment devices including the given user equipment device;
and
demodulating the first and second subsets of resource element groups in order to generate the encoded control messages comprising one or more control channel elements.

1 more element

A communication apparatus comprising a receiver and a processor, the apparatus configured to:

receive one or more Orthogonal Frequency Division Multiplex (OFDM) symbols over a control channel, wherein the OFDM symbols comprise a plurality of resource element groups distributed in time and frequency that are combined to form a plurality of control channel elements;
identify a first subset of resource element groups and a second subset of resource element groups from among the plurality of resource element groups, wherein the first subset is used to form specific control channel elements for the apparatus and the second subset is used to form common control channel elements for the apparatus and for one or more other apparatus adapted to receive the OFDM symbols over the control channel;
and
demodulate the first and second subsets of resource element groups in order to generate the encoded control messages comprising one or more control channel elements.

1 more element

Dependencies are inferred from the claim text.

Control Channel Demodulating and Decoding Method and Communication Apparatus Using the Same

Life of this patent

Control Channel Demodulating and Decoding Method and Communication Apparatus Using the Same

Life of this patent

Abstract

Claims20