Control information feedback over the long-term evolution physical uplink shared channel
View Patent ↗A network component comprising a plurality of encoders, a plurality of rate-matching modules coupled to the encoders, and a channel interleaver coupled to the rate-matching modules, wherein the rate-matching modules calculate the number of bits for rate matching a plurality of feedback control information based on a total number of bits allocated to a channel traffic without a traffic data. Included is a network component comprising at least one processor configured to encode a plurality of feedback control information, calculate the number of bits for rate-matching the feedback control information based on a total number of bits allocated to a channel traffic without a traffic data. Included is a method comprising receiving a downlink traffic, detecting a request to transmit uplink data in the downlink traffic, and transmitting feedback control information with or without data based on the request.
1. A network component comprising:
a plurality of encoders;
a plurality of rate-matching modules coupled to the encoders;
a channel interleaver coupled to the rate-matching modules,
wherein the rate-matching modules calculate the number of bits for rate matching a plurality of feedback control information based on a total number of bits allocated to a channel traffic without a traffic data, and wherein the feedback control information comprises a channel quality information (CQI), a rank indication (RI), a hybrid automatic repeat request acknowledgement (HARQ-ACK), or combinations thereof;
a virtual data generator; and
a multiplexer coupled to the virtual data generator module and a rate-matching module associated with the CQI.
2. The network component of claim 1 , wherein the multiplexer concatenates the virtual data and CQI, and wherein the channel interleaver combines the virtual data, CQI, and RI and punctures the HARQ-ACK into the virtual data, CQI, and RI.
3. The network component of claim 2 , wherein the virtual data is assigned at least one special value or resource elements associated with the virtual data are padded.
4. The network component of claim 1 , wherein the virtual data is modulated with a power level of about zero and is not encoded.
5. The network component of claim 1 , wherein a size of the virtual data is equal to about a size of an allocated transport block size in an uplink grant.
6. A network component comprising:
a plurality of decoders;
a plurality of rate-dematching modules coupled to the decoders,
wherein the rate-dematching modules calculate the number of bits for rate dematching a plurality of feedback control information based on a total number of bits allocated to a channel traffic without a transport data, and wherein the feedback control information comprises a channel quality information (CQI), a rank indication (RI), a hybrid automatic repeat request acknowledgement (HARQ-ACK), or combinations thereof;
a virtual data module; and
a demultiplexer coupled to the virtual data module and rate-dematching module associated with the CQI,
wherein the virtual data module calculates the number of bits occupied by virtual data.
7. The network component of claim 6 , wherein a deinterleaver extracts the HARQ-ACK from the virtual data, CQI, and RI, and then separates the RI from the concatenated virtual data and CQI, and then the demultiplexer separates the virtual data and CQI.
8. The network component of claim 7 , wherein the virtual data is distinguished from transport data by detecting at least one special value assigned to the virtual data or a plurality of padded resource elements.
9. The network component of claim 6 , wherein the virtual data is distinguished from transport data by detecting an average power level of about zero of a received signal corresponding to resource elements associated with the virtual data.