Multiplexing of channel state information and hybrid automatic repeat request—acknowledgement information
View Patent ↗Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for multiplexing channel state information and hybrid automatic repeat request-acknowledgement information. Other embodiments may be described and claimed.
1. 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 to generate a channel state information (CSI) bit stream that relates to a channel state; and
a transmit module coupled with the HARQ-ACK module to receive the HARQ-ACK bit stream and further coupled with the channel state indicator module to receive the CSI bit stream, the transmit module to:
recognize a potential collision between transmission of periodic CSI and transmission of hybrid automatic repeat request-acknowledgement (HARQ-ACK) in a subframe;
determine a number of uplink control information (UCI) bits, which includes CSI bits of the CSI bit stream and acknowledgement/negative acknowledgement (ACK/NACK) bits of the HARQ-ACK bit stream, to be transmitted in the subframe with utilization of a physical uplink control channel (PUCCH);
if the number is not greater than a threshold, spatially bundle 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 modulate the spatially-bundled ACK/NACK bits on a second reference signal (RS) symbol of the subframe and modulate encoded CSI bits on non-RS symbols; and
if the number is greater than the threshold, jointly code the CSI bits and the ACK/NACK bits and modulate the jointly encoded CSI bits and ACK/NACK bits on non-RS symbols of the subframe.
2. The system of claim 1 , the transmit module to:
ascertain whether a value of a parameter of radio resource control (RRC) signaling is equal to a predetermined value; and
perform detection of a potential scheduling conflict if the value of the parameter is equal to the predetermined value.
3. The system of claim 2 , wherein the parameter includes a simultaneous ACK/NACK and channel quality indicator (CQI) parameter.
4. The system of claim 2 , wherein the predetermined value is one.
5. The system of claim 2 , wherein the parameter indicates at least one of whether the CSI bit stream is to be transmitted with utilization of PUCCH 2 format or the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection.
6. The system of claim 2 , the transmit module to recognize the potential collision responsive to a result of the detection.
7. The system of claim 1 , wherein the transmit module is to:
ascertain whether the CSI bit stream is to be transmitted with utilization of PUCCH 2 format and the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection; and
recognize the potential collision responsive to an ascertainment that the CSI bit stream is to be transmitted with utilization of PUCCH 2 format and the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection.
8. The system of claim 1 , the transmit module to operate in a frequency division duplex mode to spatially bundle the ACK/NACK bits.
9. The system of claim 8 , the transmit module to spatially bundle the ACK/NACK bits based on a logical AND operation.
10. The system of claim 1 , the transmit module to channel code prior to modulation of the encoded CSI bits on the non-RS symbols.
11. One or more non-transitory computer readable media having instructions that, when executed, cause a communication device to:
recognize a potential collision between transmission of periodic channel state information (CSI) and transmission of hybrid automatic repeat request-acknowledgement (HARQ-ACK) in a subframe;
determine a number of uplink control information (UCI) bits, which includes CSI bits of a CSI bitstream and acknowledgement/negative acknowledgement (ACK/NACK) bits of a HARQ-ACK bitstream, to be transmitted in the subframe with utilization of a physical uplink control channel (PUCCH);
if the number is not greater than a threshold, spatially bundle 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 modulate the spatially-bundled ACK/NACK bits on a second reference signal (RS) symbol of the subframe and modulate encoded CSI bits on non-RS symbols; and
if the number is greater than the threshold, jointly code the CSI bits and the ACK/NACK bits and modulate the jointly encoded CSI bits and ACK/NACK bits on non-RS symbols of the subframe.
12. The one or more non-transitory computer readable media of claim 11 , wherein the instructions further cause the communication device to operate in a frequency division duplex mode to spatially bundle the ACK/NACK bits.
13. The one or more non-transitory computer readable media of claim 12 , wherein the instructions further cause the communication device to spatially bundle the ACK/NACK bits based on a logical AND operation.
14. The one or more non-transitory computer readable media of claim 11 , wherein the instructions further cause the communication device to spatially bundle the ACK/NACK bits based on a logical AND operation.
15. The one or more non-transitory computer readable media of claim 11 , wherein the instructions further cause the communication device to:
ascertain whether a value of a parameter of radio resource control (RRC) signaling is equal to a predetermined value; and
perform detection of a potential scheduling conflict if the value of the parameter is equal to the predetermined value.
16. The one or more non-transitory computer readable media of claim 15 , wherein the parameter is the simultaneous ACK/NACK and channel quality indicator (CQI) parameter.
17. The one or more non-transitory computer readable media of claim 15 , wherein the predetermined value is one.
18. The one or more non-transitory computer readable media of claim 15 , wherein the instructions further cause the communication device to recognize the potential collision responsive to a result of the detection.
19. The one or more non-transitory computer readable media of claim 15 , wherein the parameter indicates at least one of whether the CSI bit stream is to be transmitted with utilization of PUCCH 2 format or the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection.
20. The one or more non-transitory computer readable media of claim 11 , wherein the instructions further cause the communication device to:
ascertain whether the CSI bit stream is to be transmitted with utilization of PUCCH 2 format and the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection; and
recognize the potential collision responsive to an ascertainment that the CSI bit stream is to be transmitted with utilization of PUCCH 2 format and the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection.
21. An apparatus, comprising:
a hybrid automatic repeat request-acknowledgement (HARQ-ACK) circuitry 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 circuitry to generate a channel state information (CSI) bit stream that relates to a channel state; and
a transmit circuitry coupled with the HARQ-ACK circuitry to receive the HARQ-ACK bit stream and further coupled with the channel state indicator circuitry to receive the CSI bit stream, the transmit circuitry to:
recognize a potential collision between transmission of periodic CSI and transmission of hybrid automatic repeat request-acknowledgement (HARQ-ACK) in a subframe;
determine a number of uplink control information (UCI) bits, which includes CSI bits of the CSI bit stream and acknowledgement/negative acknowledgement (ACK/NACK) bits of the HARQ-ACK bit stream, to be transmitted in the subframe with utilization of a physical uplink control channel (PUCCH);
if the number is not greater than a threshold, spatially bundle 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 modulate the spatially-bundled ACK/NACK bits on a second reference signal (RS) symbol of the subframe and modulate encoded CSI bits on non-RS symbols; and
if the number is greater than the threshold, jointly code the CSI bits and the ACK/NACK bits and modulate the jointly encoded CSI bits and ACK/NACK bits on non-RS symbols of the subframe.
22. The apparatus of claim 21 , the transmit circuitry to:
ascertain whether a value of a parameter of radio resource control (RRC) signaling is equal to a predetermined value; and
perform detection of a potential scheduling conflict if the value of the parameter is equal to the predetermined value.
23. The apparatus of claim 22 , wherein the parameter includes a simultaneous ACK/NACK and channel quality indicator (CQI) parameter.
24. The apparatus of claim 22 , wherein the predetermined value is one.
25. The apparatus of claim 22 , wherein the parameter indicates at least one of whether the CSI bit stream is to be transmitted with utilization of PUCCH 2 format or the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection.
26. The apparatus of claim 22 , the transmit circuitry to recognize the potential collision responsive to a result of the detection.
27. The apparatus of claim 21 , wherein the transmit circuitry is to:
ascertain whether the CSI bit stream is to be transmitted with utilization of PUCCH 2 format and the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection; and
recognize the potential collision responsive to an ascertainment that the CSI bit stream is to be transmitted with utilization of PUCCH 2 format and the HARQ-ACK bit stream is to be transmitted with utilization of PUCCH format 1b with channel selection.
28. The apparatus of claim 21 , the transmit circuitry to operate in a frequency division duplex mode to spatially bundle the ACK/NACK bits.
29. The apparatus of claim 28 , the transmit circuitry to spatially bundle the ACK/NACK bits based on a logical AND operation.
30. The apparatus of claim 21 , the transmit circuitry to channel code prior to modulation of the encoded CSI bits on the non-RS symbols.