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

Patent metadata

Field	Value
Publication number	US-9294230-B2
Application number	US-201313934095-A
Country	US
Kind code	B2
Filing date	Jul 2, 2013
Priority date	Jul 2, 2012
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

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.

First claim

What is claimed is:

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 dev

Assignees

• Intel Corp

Inventors

• Han Seunghee
• He Hong
• Fwu Jong-Kae
• Bashar Shafi
• Chatterjee Debdeep
• Heo Youn Hyoung

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04L5/0057

  Physical resource allocation for CQI · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title