Method and apparatus for transmitting and receiving uplink control information in carrier aggregation environment
AssigneeApple Inc.
InventorSungkwon Hong
Life of this patent
Estimating the term…
Abstract
A method for transmitting uplink control information in a carrier aggregation environment, the method includes: calculating n pieces of response data, each having 1 bit or 2 bits, for n subframes received from an enhanced Node B (eNB) through n downlink component carriers and decoded by a User Equipment (UE); calculating k bits of integrated response data by applying a mapping rule reflecting a weight given to a downlink component carrier of each of the n pieces of response data; and performing a block coding of the integrated response data to produce encoded integrated response data, and transmitting the encoded integrated response data to the eNB.
Claims20
A method of receiving uplink control information in a carrier aggregation environment, the method comprising:
- transmitting, to a user equipment (UE), n respective Physical Downlink Shared Channel (PDSCH) transmissions through n respective downlink component carriers;
- receiving, from the UE, encoded integrated response data in response to the n respective PDSCH transmissions;
- determining k bits of integrated response data by performing a block decoding of the received encoded integrated response data;
- extracting n respective pieces of Hybrid Automatic Repeat Request (HARQ) response data, each piece having a size of 1 bit or 2 bits, from the determined k bits of integrated response data, wherein the n respective pieces correspond to the n respective PDSCH transmissions through the n respective downlink component carriers and are located in the integrated response data according to a preset order, wherein each of the n respective pieces of HARQ response data are either configured as 1 bit corresponding to one codeword and the 2 bits corresponding to two codewords;
- and
- determining whether to perform one or more retransmissions for the n respective PDSCH transmissions by using the n respective pieces of HARQ response data.
An apparatus to receive uplink control information in a carrier aggregation environment, the apparatus comprising:
- a transmitter to transmit, to a User Equipment, n respective Physical Downlink Shared Channel (PDSCH) transmissions in one subframe through n respective downlink component carriers;
- a receiver to receive, from the UE, encoded integrated response data responsive to the n respective PDSCH transmissions;
- a decoder to determine k bits of integrated response data by performing a block decoding of the received encoded integrated response data;
- and
- a verifier to extract n respective, pieces of Hybrid Automatic Repeat Request (HARQ) response data, each piece having a size of 1 bit or 2 bits, from the determined k bits of integrated response data, wherein the n respective pieces correspond to the n respective PDSCH transmissions through the n respective downlink component carriers and are located in the integrated response data according to a preset order, wherein each of the n respective pieces of HARQ response data are either configured as 1 bit corresponding to one codeword and the 2 bits corresponding to two codewords, and to determine whether to perform one or more retransmissions for the n respective PDSCH transmissions by using the n respective pieces of HARQ response data.
Dependencies are inferred from the claim text.