Multiplexing of channel state information and hybrid automatic repeat request—acknowledgement information

1. An apparatus comprising:

a hybrid automatic repeat request-acknowledgement (HARQ-ACK) module to generate a HARQ-ACK bit stream to indicate whether downlink data was successfully received on a physical downlink shared channel (PDSCH);

a channel state indicator module (CSI) to generate a CSI bit stream that relates to a channel state; and

a transmit module having an encoder section to generate a plurality of output streams based on the CSI bit stream and the HARQ-ACK bit stream and a rate matcher coupled with the encoding section to receive the plurality of output streams and to generate a rate-matched output bit sequence based on the plurality of output streams, wherein the rate matcher includes:

a plurality of sub-block interleaver modules to respectively receive the plurality of output streams from the encoder section and to provide a respective plurality of interleaved streams;

a bit collection module coupled with the plurality of sub-block interleaver modules to receive the plurality of interleaved streams and to output a bit-collection bit stream; and

a bit selection and pruning module coupled with the bit collection module to receive the bit-collection bit stream and provide the rate-matched output bit sequence;

the transmit module coupled with the HARQ-ACK module to receive the HARQ-ACK bit stream and further coupled with the CSI module to receive the CSI bit stream, the transmit module to:

jointly code the HARQ-ACK bit stream and the CSI bit stream on a physical uplink control channel (PUCCH) transmission if the number of uplink control information (UCI) bits, which include bits of the HARQ-ACK bit stream and the CSI bit stream, to be transmitted is not greater than a payload capacity of the PUCCH transmission; and

discard at least some bits of the CSI bit stream or bundle at least some of the bits of the HARQ-ACK bit stream if the number of UCI bits is greater than the payload capacity.

2. The apparatus of claim 1 , wherein if the number of the UCI bits is less than or equal to the payload capacity, the transmit module is to jointly code the bits of the HARQ-ACK bit stream and the CSI bit stream with a Reed-Muller (RM) code.

3. The apparatus of claim 2 , wherein the RM code is a dual RM code.

4. The apparatus of claim 3 , wherein the transmit module further comprises:

a first RM encoder module to code a first segment of a UCI bit stream; and

a second RM encoder module to code a second segment of the UCI bit stream.

5. The apparatus of claim 4 , wherein the first segment is bits of the CSI bit stream and the second segment is bits of the HARQ-ACK bit stream.

6. The apparatus of claim 1 , wherein the number of the UCI bits is less than or equal to the payload capacity and the transmit module is to jointly code the bits of the HARQ-ACK bit stream and the CSI bit stream with a tailbiting convolutional code (TBCC).

7. The apparatus of claim 1 , wherein the PUCCH transmission is a PUCCH Format 2 transmission.

8. The apparatus of claim 1 , wherein the UCI bits includes a scheduling request (SR) bit that indicates a positive SR, the number of UCI bits is greater than the payload capacity, and the transmit module is further to:

transmit bits of the HARQ-ACK bit stream on an SR PUCCH and drop the bits of the CSI bit stream.

9. An apparatus comprising:

a hybrid automatic repeat request-acknowledgement (HARQ-ACK) module to generate a HARQ-ACK bit stream to indicate whether downlink data was successfully received on a physical downlink shared channel (PDSCH);

a channel state indicator module (CSI) to generate a CSI bit stream that relates to a channel state; and

a transmit module having an encoder section to generate a plurality of output streams based on the CSI bit stream and the HARQ-ACK bit stream and a rate matcher coupled with the encoding section to receive the plurality of output streams and to generate a rate-matched output bit sequence based on the plurality of output streams, wherein the rate matcher includes:

a plurality of sub-block interleaver modules to respectively receive the plurality of output streams from the encoder section and to provide a respective plurality of interleaved streams;

a bit collection module coupled with the plurality of sub-block interleaver modules to receive the plurality of interleaved streams and to output a bit-collection bit stream; and

a bit selection and pruning module coupled with the bit collection module to receive the bit-collection bit stream and provide the rate-matched output bit sequence;

the transmit module coupled with the HARQ-ACK module to receive the HARQ-ACK bit stream and further coupled with the CSI module to receive the CSI bit stream, the transmit module to:

detect a potential scheduling conflict between a hybrid automatic repeat request-acknowledgement (HARQ-ACK) transmission using channel selection and a channel state information (CSI) transmission; and

jointly code, based on detection of a potential scheduling conflict CSI bits of the CSI transmission and ACK/NACK bits of the HARQ-ACK transmission, on a physical uplink control channel (PUCCH) of a subframe with a tailbiting convolutional code (TBCC).

10. The apparatus of claim 9 , wherein the PUCCH transmission is a PUCCH Format 2 transmission.

11. The apparatus of claim 9 , wherein the encoding section comprises:

a plurality of delay elements serially coupled with one another; and

a plurality of adder elements coupled with the plurality of delay elements.

12. The apparatus of claim 9 , wherein the bit-collection bit stream is output from a virtual circular buffer of the bit collection module.

13. The apparatus of claim 9 , wherein the TBCC has a constraint length of seven and a mother coding rate of 1/3.

14. A method comprising:

recognizing a potential collision between transmitting periodic channel state information (CSI) and transmitting hybrid automatic repeat request-acknowledgement (HARQ-ACK) in a subframe;

determining a number of uplink control information (UCI) bits, which includes CSI bits of the CSI transmission and ACK/NACK bits of the HARQ-ACK transmission, to be transmitted in the subframe using a physical uplink control channel (PUCCH);

if a normal cyclic prefix is used, spatially bundling the ACK/NACK bits by having a most significant bit represent spatially-bundled HARQ-ACK for a primary cell and a least significant bit represent spatially-bundled HARQ-ACK for a secondary cell, and modulating the spatially-bundled ACK/NACK bits on a second reference signal (RS) symbol of the subframe and modulating, after channel coding, encoded CSI bits on non-RS symbols; and

if an extended cyclic prefix is used, jointly coding the CSI bits and the ACK/NACK bits and modulating the jointly encoded CSI bits and ACK/NACK bits on non-RS symbols of the subframe.

15. The method of claim 14 , wherein a transmit module utilized for the coding of the CIS bits and the ACK/NACK bits is configured for frequency division duplexing.

16. The method of claim 15 , wherein the spatial bundling is based on a logical AND operation.

17. The method of claim 14 , wherein a transmit module utilized for the coding of the CIS bits and the ACK/NACK bits is configured for time division duplexing and the spatially-bundling of the ACK/NACK bits comprises:

using a number of an ACK counter that tracks a number of ACKs among multiple HARQ-ACK responses to generate the spatially bundled ACK/NACK bits.

18. A system comprising:

user interfaces that include a display, a speaker, and a microphone; and

a communication device coupled with the user interfaces to transmit and receive data over a wireless network, the communication device including:

a hybrid automatic repeat request-acknowledgement (HARQ-ACK) module to generate a HARQ-ACK bit stream to indicate whether downlink data was successfully received on a physical downlink shared channel (PDSCH);

a channel state indicator module (CSI) to generate a CSI bit stream that relates to a channel state; and

a transmit module having an encoder section to generate a plurality of output streams based on the CSI bit stream and the HARQ-ACK bit stream and a rate matcher coupled with the encoding section to receive the plurality of output streams and to generate a rate-matched output bit sequence based on the plurality of output streams, wherein the rate matcher includes:

a plurality of sub-block interleaver modules to respectively receive the plurality of output streams from the encoder section and to provide a respective plurality of interleaved streams;

a bit collection module coupled with the plurality of sub-block interleaver modules to receive the plurality of interleaved streams and to output a bit-collection bit stream; and

a bit selection and pruning module coupled with the bit collection module to receive the bit-collection bit stream and provide the rate-matched output bit sequence;

the transmit module coupled with the HARQ-ACK module to receive the HARQ-ACK bit stream and further coupled with the CSI module to receive the CSI bit stream, the transmit module to:

if an extended cyclic prefix is used, jointly code bits of the HARQ-ACK bit stream and bits of the CSI bit stream; and

if a normal cyclic prefix is used, jointly code a first set of bits of the HARQ-ACK bit stream with bits of the CSI bit stream and separately code a second set of bits of the HARQ-ACK bit stream.

19. The system of claim 18 , wherein, if a normal cyclic prefix is used, the transmit module is further to:

modulate jointly encoded first set of bits of the HARQ-ACK bit stream and bits of the CSI bit stream on a non-reference signal (non RS) symbol of a subframe; and

modulate the seperately coded second set of bits of the HARQ-ACK bit stream on a reference signal (RS) symbol of the subframe.

20. The system of claim 19 , wherein the RS symbol is in a second slot of the subframe.

21. The system of claim 18 , wherein the transmit module is to jointly code the bits of the HARQ-ACK bit stream and bits of the CSI bit stream with a dual RM code.

22. The system of claim 18 , wherein the transmit module is to jointly code the bits of the HARQ-ACK bit stream and the bits of the CSI bit stream with a tailbiting convolutional code (TBCC).

23. The system of claim 18 , wherein transmit module is to transmit the HARQ-ACK bit stream and the CSI bit stream on a physical uplink control channel (PUCCH) Format 2 transmission.

24. The apparatus of claim 1 , wherein the bit-collection bit stream is output from a virtual circular buffer of the bit collection module.

25. The system of claim 18 , wherein the bit-collection bit stream is output from a virtual circular buffer of the bit collection module.