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Uplink control information UCI transmitting and receiving method and device

A technology for controlling information and transmission methods, applied in transmission systems, digital transmission systems, sub-channel allocation of transmission paths, etc., can solve problems such as simultaneous transmission, and achieve the effects of improving accuracy, ensuring transmission reliability, and avoiding feedback information discarding

Active Publication Date: 2012-03-14
XIAOMI INC
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0039] However, when UE is configured to transmit PUCCH and PUSCH at the same time, there is no clear solution on how to transmit different types of UCI information on PUCCH and PUSCH at the same time

Method used

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  • Uplink control information UCI transmitting and receiving method and device
  • Uplink control information UCI transmitting and receiving method and device
  • Uplink control information UCI transmitting and receiving method and device

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Embodiment Construction

[0073] The user terminal UE and its method for transmitting uplink control information UCI provided by the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0074] In the LTE-A system, UE supports simultaneous transmission of UCI on PUCCH and PUSCH in one uplink subframe, but no clear solution is given for how to transmit UCI at the same time. The present invention provides a scheme for simultaneous transmission of UCI on PUCCH and PUSCH. Such as Figure 4 As shown, the uplink control information UCI transmission method provided by the present invention includes steps:

[0075] Step S401, the user terminal UE determines the uplink carrier where the physical uplink control channel PUCCH for transmitting UCI is located, and the uplink carrier where the physical uplink shared channel PUSCH for transmitting UCI is located;

[0076] In an LTE-A system, a UE can perform signaling scheduling and service transmiss...

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Abstract

The invention relates to the technical field of wireless communication, and discloses a UCI transmitting and receiving method and device. The method comprises the steps that: a piece of UE (User Equipment) determines an uplink carrier wave of a PUCCH (Physical Unlink Control Channel) for transmitting the UCI and an uplink carrier wave of a PUSCH (Physical Unlink Share Channel) for transmitting the UCI; the UE transmits ACK(acknowledgement) / NACK (negative acknowledgement) information at the uplink carrier wave of the PUCCH for transmitting the UCI by the PUCCH; and the UE transmits channel state information at the uplink carrier wave of the PUSCH for transmitting the UCI by the PUSCH. In the invention, the scheme, which is suitably applied to a LTE-A (Long Term Evolution-Access) system and is compatible with a LTE system and supports the synchronous transmission of the UCI on the PUCCH and the PUSCH, is provided; and the scheduling accuracy is provided while the transmission reliability is ensured.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for transmitting and receiving uplink control information UCI. Background technique [0002] In a long term evolution (Long Term Evolution, LTE) system, a UE feeds back uplink control information (Uplink Control Information, UCI) of a downlink carrier in an uplink subframe. [0003] UCI mainly includes three types of information: periodic and aperiodic channel state information, channel state information specifically includes any of the following three parameters: CQI (Channel Quality Indicator, channel quality indicator) / PMI (Precoding Matrix Indicator, precoding matrix Index) / RI (Rank Indication, rank indication); positive acknowledgment ACK (Acknowledgment) / negative acknowledgment NACK (Negative Acknowledgment) information; SR (Scheduling Request, scheduling request) information. [0004] The UCI transmission mechanism in the LTE R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04W72/12H04L1/00
CPCH04L1/1861H04L5/0055H04L5/0057
Inventor 高雪娟沈祖康林亚男潘学明
Owner XIAOMI INC
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