Information sending method and system

Abstract

The invention discloses an information sending method which comprises the following steps: mapping W of ACK / NACK as M bits when W of the ACK / NACK and H of channel state information CSI bits need to be simultaneously transmitted on a same subframe, wherein, W, H and M are positive integers; encoding the M of ACK / NACK bits and the H of the CSI bits after mapping; and mapping the ACK / NACK bits and the CSI bits after encoding onto a PUCCH for sending. The invention further correspondingly discloses an information sending system. The adoption of the method and the system can simultaneously transmit the ACK / NACK and the CSI, lead the number of ACK / NACK feedback bits to be greater than two bits, further ensure the maximum throughput of the system and reduce the down channel information feedback time delay.

Description

technical field

[0001] The present invention relates to wireless communication technology, in particular to an information sending method and system. Background technique

[0002] A radio frame (radio frame) in a Long Term Evolution (LTE, Long Term Evolution) system includes frame structures in a Frequency Division Duplex (FDD, Frequency Division Duplex) mode and a Time Division Duplex (TDD, Time Division Duplex) mode. figure 1 It is a schematic diagram of the frame structure in the prior art FDD system, such as figure 1 As shown, a wireless frame of 10 milliseconds (ms) consists of twenty slots (slots) with a length of 0.5ms and numbers 0 to 19, and slots 2i and 2i+1 form a subframe (subframe) with a length of 1ms i. figure 2 It is a schematic diagram of the frame structure in the prior art TDD system, such as figure 2 As shown, a 10ms radio frame consists of two half frames with a length of 5ms. A half frame includes five subframes with a length of 1ms. Subframe i is ...

Examples

Embodiment 1

[0135] When ACK / NACK is transmitted using single RM coded PUCCH Format 3, and W ACK / NACKs and H CSIs are simultaneously transmitted in one subframe, W ACKs / NACKs are mapped to M bits, and M ACKs / NACKs The bits and the H CSI bits are divided into two groups, each group is coded separately, the coded bits are combined and mapped to PUCCH Format 3, and the PUCCH is sent, where W, H, and M are positive integers.

[0136] In this embodiment, the manner in which W ACK / NACKs are mapped to M bits may be:

[0137] Mapping method 1: M is equal to W, one-to-one mapping, direct transmission.

[0138] Mapping mode 2: spatial AND operation (that is, mapping the ACK / NACK corresponding to the PDSCH into one ACK / NACK through a logical AND operation).

[0139]M is the maximum number of configured PDSCHs, where the mapping method is to perform an AND operation on multiple ACK / NACK bits corresponding to each PDSCH, and feed back M ACK / NACK information after the AND operation; that is, when a PDS...

example 1

[0143] Example 1: The M ACK / NACKs and the H CSI bits are sequentially connected in series and divided into two groups. Assuming that there are N bits in total, the first Bits are a group, and the remaining bits are a group;

example 2

[0144] Example 2: The H CSI bits and the M ACK / NACKs are sequentially connected in series and divided into two groups. Assuming that there are N bits in total, the first Bits are a group, and the remaining bits are a group;

technical field

[0001] The present invention relates to wireless communication technology, in particular to an information sending method and system. Background technique

[0002] A radio frame (radio frame) in a Long Term Evolution (LTE, Long Term Evolution) system includes frame structures in a Frequency Division Duplex (FDD, Frequency Division Duplex) mode and a Time Division Duplex (TDD, Time Division Duplex) mode. figure 1 It is a schematic diagram of the frame structure in the prior art FDD system, such as figure 1 As shown, a wireless frame of 10 milliseconds (ms) consists of twenty slots (slots) with a length of 0.5ms and numbers 0 to 19, and slots 2i and 2i+1 form a subframe (subframe) with a length of 1ms i. figure 2 It is a schematic diagram of the frame structure in the prior art TDD system, such as figure 2 As shown, a 10ms radio frame consists of two half frames with a length of 5ms. A half frame includes five subframes with a length of 1ms. Subframe i is ...

Examples

Embodiment 1

[0135] When ACK / NACK is transmitted using single RM coded PUCCH Format 3, and W ACK / NACKs and H CSIs are simultaneously transmitted in one subframe, W ACKs / NACKs are mapped to M bits, and M ACKs / NACKs The bits and the H CSI bits are divided into two groups, each group is coded separately, the coded bits are combined and mapped to PUCCH Format 3, and the PUCCH is sent, where W, H, and M are positive integers.

[0136] In this embodiment, the manner in which W ACK / NACKs are mapped to M bits may be:

[0137] Mapping method 1: M is equal to W, one-to-one mapping, direct transmission.

[0138] Mapping mode 2: spatial AND operation (that is, mapping the ACK / NACK corresponding to the PDSCH into one ACK / NACK through a logical AND operation).

[0139]M is the maximum number of configured PDSCHs, where the mapping method is to perform an AND operation on multiple ACK / NACK bits corresponding to each PDSCH, and feed back M ACK / NACK information after the AND operation; that is, when a PDS...

example 1

[0143] Example 1: The M ACK / NACKs and the H CSI bits are sequentially connected in series and divided into two groups. Assuming that there are N bits in total, the first Bits are a group, and the remaining bits are a group;

example 2

[0144] Example 2: The H CSI bits and the M ACK / NACKs are sequentially connected in series and divided into two groups. Assuming that there are N bits in total, the first Bits are a group, and the remaining bits are a group;

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