Method and device for simultaneous transmission of ACK/NACK feedback information and periodic CQI/PMI/RI feedback bits

Patent metadata

Field	Value
Publication number	US-9628240-B2
Application number	US-201114002105-A
Country	US
Kind code	B2
Filing date	Nov 9, 2011
Priority date	Nov 9, 2010
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

Disclosed are a method and device for simultaneous transmission of ACK/NACK feedback information and periodic CQI/PMI/RI feedback bits. By way of using the technical solution of the embodiments of the present invention, the periodic CQI/PMI/RI feedback bits and ACK/NACK feedback information can be simultaneously transmitted in the same uplink sub-frame using PUCCH format 3 in an LTE-A system, thus avoiding the situation that the transmission of the periodic CQI/PMI/RI information needs to be abandoned when the ACK/NACK feedback information and the periodic CQI/PMI/RI information are transmitted simultaneously in the same uplink sub-frame, improving the feedback efficiency of the uplink control information.

First claim

The invention claimed is:

1. A method for simultaneous transmission of ACK/NACK feedback information and periodic CQI (Channel Quality Indication)/PMI (Precoding Matrix Indicator)/RI (Rank Indication) feedback bits, comprising:
receiving downlink data by a terminal equipment;
generating K bits ACK/NACK feedback bits for the data in M downlink sub-frames on N configured downlink carriers by the terminal equipment, wherein, N≧1, M≧1, and the ACK/NACK feedback information of the data in the M downlink sub-frames is transmitted in one uplink sub-frame;
generating S bits periodic CQI/PMI/RI feedback bits by the terminal equipment; and
sending S bits periodic CQI/PMI/RI feedback bits and K bits ACK/NACK feedback bits simultaneously in the uplink sub-frame using PUCCH (Physical Uplink Control Channel) format 3 by the terminal equipment;
wherein, the PUCCH format 3 channel resource(s) used by the terminal equipment are the PUCCH format 3 channel resource(s) used by the terminal equipment to transmit ACK/NACK feedback bits.

2. The method of claim 1 , wherein, the PUCCH format 3 channel resource(s) comprising:
one channel resource among those at least one channel resource(s) configured by higher layer signalling indicated by ACK/NACK resource indication bits in a PDCCH (Physical Downlink Control Channel), wherein, the PDCCH is used to transmit the downlink grant of a PDSCH (Physical Downlink Shared Channel) on the downlink secondary carrier and/or on the downlink primary carrier, and with the DAI value in the PDCCH larger than 1; and
if the terminal equipment receives at least two said PDCCHs, ACK/NACK resource indication bits in those PDCCHs indicate the same channel resource.

3. The method of claim 1 , wherein, the terminal equipment generating K bits ACK/NACK feedback bits for the data in M downlink sub-frames on N configured downlink carriers, further comprising:
generating L bits ACK/NACK feedback bits for the data in M downlink sub-frames on the N configured downlink carriers by the terminal equipment, and generating T bits of assistant information by the terminal equipment, wherein, K is the sum of L and T; or,
generating 1 bit of ACK/NACK feedback information for each data packet received in each downlink sub-frame of the M downlink sub-frames on the N configured downlink carriers by the terminal equipment, and generating 1 bit of NACK feedback information for each data packet detected to be missed by the terminal equipment, generating M bits ACK/NACK feedback bits by performing bundling across the ACK/NACK feedback information for each downlink sub-frame of the M downlink sub-frames by the terminal equipment, on the N configured downlink carriers, wherein, K=M; or,
generating K bits ACK/NACK feedback bits according to the number of data packets correctly received in the N configured downlink carriers and the M downlink sub-frames by the terminal equipment.

4. The method of claim 3 , wherein, the terminal equipment generating L bits ACK/NACK feedback bits for the data in M downlink sub-frames on the N configured downlink carriers, further comprising:
generating 1 bit of ACK/NACK feedback information for each data packet received in the M downlink sub-frames on the N configured downlink carriers by the terminal equipment, and generating 1 bit of NACK feedback information for each data packet detected to be missed by the terminal equipment;
generating L bits ACK/NACK feedback bits by performing bundling across the ACK/NACK feedback information corresponding to the M downlink sub-frames on each downlink carrier of the N configured downlink carriers by the terminal equipment, wherein, L≧N; or,
generating 1 bit of ACK/NACK feedback information for each data packet received in the M downlink sub-frames on the N configured downlink carriers by the terminal equipment, and generating 1 bit of NACK feedback information for each data packet detected to be missed by the terminal equipment;
generating 1 bit ACK/NACK feedback bit by performing bundling across all the ACK/NACK feedback information corresponding to the M downlink sub-frames on all of the configured downlink carriers by the terminal equipment; and/or,
generating T bits of assistant information for the data in M downlink sub-frames on the N configured downlink carriers by the terminal equipment, comprising:
the assistant information comprising at least M states, wherein, M states are used to indicate the number, S (S≧1), of downlink sub-frames with PDCCH transmission received by the terminal equipment in the M downlink sub-frames, and the PDCCH is used to transmit the downlink grant of PDSCH and/or is a PDCCH indicating the activation/release of semi-persistant PDSCH; or,
the assistant information comprising at least M states, wherein, M states indicate the number, S (S≧1), of downlink sub-frames with PDCCH transmission received by the terminal equipment in the M downlink sub-frames, one of the M states of the assistant information is used by multiplexing to indicate that terminal equipment does not receive any downlink sub-frames with PDCCH transmission, and the PDCCH is used to transmit the downlink grant of PDSCH and/or is a PDCCH indicating the activation/release of semi-persistant PDSCH; or,
the assistant information comprising at least M+2 states, wherein, M states indicate the number, S (S≧1), of downlink sub-frames with PDCCH transmission received by the terminal equipment in the M downlink sub-frames, an independent state different from the M states of the assistant information is used to indicate that the terminal equipment only receives downlink sub-frames without corresponding PDCCH transmission, an independent state different from the M+1 states is used to indicate that the terminal equipment does not receive any downlink sub-frames, and the PDCCH is used to transmit the downlink grant of PDSCH and/or is a PDCCH indicating the activation/release of semi-persistant PDSCHs; or,
the assistant information comprising at least M+1 states, wherein, M states indicate the number, S (S≧1), of downlink sub-frames with PDCCH transmission received by the terminal equipment in the M downlink sub-frames, an independent state different from the M states of the assistant information is used to indicate that the terminal equipment does not receive any downlink sub-frames with PDCCH transmission, and the PDCCH is used to transmit the downlink grant of PDSCH and/or is a PDCCH indicating the activation/release of semi-persistant PDSCH.

5. A terminal equipment, comprising:
a receiving module configured to receive downlink data;
a first generation module configured to generate K bits ACK/NACK feedback bits for the data in M downlink sub-frames on N configured downlink carriers, wherein, N≧1, M≧1, and the ACK/NACK feedback information of the data in the M downlink sub-frames is transmitted in one uplink sub-frame;
a second generation module configured to generate S bits periodic CQI/PMI/RI feedback bits;
a sending module configured to send S bits periodic CQI (Channel Quality Indication)/PMI PMI (Precoding Matrix Indicator)/RI (Rank Indication) feedback bits generated by the second generation module and K bits ACK/NACK feedback bits generated by the first generation module simultaneously in the uplink sub-frame using PUCCH (Physical Uplink Control Channel) format 3;
wherein, the PUCCH format 3 channel resource(s) used by the terminal equipment are the PUCCH format 3 channel resource(s) used by the terminal equipment to transmit ACK/NACK feedback bits.

6. The terminal equipment of claim 5 , wherein:
when the PUCCH format 3 channel resource(s) used by the sending module is the one for the terminal equipment to transmit periodic CQI/PMI/RI feedback bits, such channel resource is the one configured by higher layer signalling in advance;
when the

Assignees

• Gao Xuejuan
• Shen Zukang
• Lin Yanan
• Datang mobile communications equipment co ltd

Inventors

• Gao Xuejuan
• Shen Zukang
• Lin Yanan

Classifications

• H04L1/1621

  Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers · CPC title

• H04B7/0632

  Channel quality parameters, e.g. channel quality indicator [CQI] · CPC title

• H04L5/0055 Primary

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

• H04B7/0639

  Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection · CPC title

• H04L1/0031 Primary

  Multiple signaling transmission (H04L1/1664, F15 take precedence) · CPC title