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Transmission method and device and receiving method and device of uplink control information

A sending method and technology for controlling information, applied in the field of uplink control information (UCI) sending method and device, and receiving method and device, capable of solving problems such as waste of resources, achieving the effects of avoiding signaling overhead and improving transmission efficiency

Active Publication Date: 2015-05-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In view of the problem in the related art that PUSCH cannot be reasonably selected to transmit UCI in the TDD-FDD Joint Operation scenario, the present invention proposes a method and device for sending uplink control information, as well as a receiving method and device, which can be used in the TDD-FDD Joint Operation scenario Make UE send ACK / NACK feedback information reasonably, and avoid waste of resources

Method used

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  • Transmission method and device and receiving method and device of uplink control information
  • Transmission method and device and receiving method and device of uplink control information
  • Transmission method and device and receiving method and device of uplink control information

Examples

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example 1

[0115] Such as Figure 4 As shown, the UE is configured with one FDD carrier and one TDD carrier, and there is one PUSCH transmission on each of the FDD and TDD carriers in the current subframe.

[0116] In this example, since there is a PUSCH on the TDD carrier, the UE will select the PUSCH on the TDD carrier to transmit the UCI of the FDD carrier and the TDD carrier;

[0117] Specifically, the UCI generation method is as follows:

[0118] If the selected PUSCH has a corresponding PDCCH / EPDCCH, and the PDCCH / EPDCCH contains a DAI field, then determine the ACK / NACK information in the UCI transmitted by the UE on the PUSCH according to the indication information of the DAI field:

[0119] (Method 1): DAI indicates the scheduling situation of FDD carrier and TDD carrier or the ACK / NACK feedback situation. Taking 1-bit DAI as an example, the specific indication method can be shown in Table 2, but not limited to the corresponding relationship in Table 2. At this time , the DAI f...

example 2

[0143] Such as Figure 5 As shown, the UE is configured with 2 FDD carriers and 2 TDD carriers; there is one PUSCH transmission on each carrier in the current subframe. It is assumed that a predetermined strategy for determining the PUSCH is to determine the PUSCH of the TDD carrier with the smallest carrier number as the PUSCH for transmitting UCI.

[0144] At this time, since there are PUSCHs on multiple TDD carriers, according to the carrier number, select the PUSCH on the TDD carrier with the smallest carrier number, that is, the UE selects the PUSCH on TDD carrier 1 (the TDD carrier number is the smallest) to transmit FDD carrier and TDD carrier The UCI. The specific method for generating UCI is the same as Example 1, and will not be repeated here;

example 3

[0146] Such as Figure 6 As shown, the UE is configured with one FDD carrier and two TDD carriers and TDD carriers; in the current subframe, there is a PUSCH transmission on each of the FDD and TDD carriers, and the uplink and downlink configuration of TDD carrier 1 or the reference uplink and downlink configuration are configured 0, the uplink and downlink configuration of TDD carrier 2 or the reference uplink and downlink configuration is one of configurations 1, 2, 3, 4, 5, and 6.

[0147] At this time, since there is a PUSCH on the TDD carrier, and the uplink and downlink configuration of TDD carrier 2 or the reference uplink and downlink configuration is one of configurations 1, 2, 3, 4, 5, and 6 (that is, when there is a corresponding PUSCH on the carrier For PDCCH / EPDCCH, there is a DAI domain in PDCCH / EPDCCH), so the UE will select the PUSCH on TDD carrier 2 to transmit the UCI of the FDD carrier and TDD carrier;

[0148] Since the uplink and downlink configuration of...

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Abstract

The invention discloses a transmission method and device and a receiving method and device of uplink control information. The transmission method comprises the following steps: determining one PUSCH (Physical Uplink Shared Channel) on a TDD (Time Division Duplex) carrier for transmitting UCI (Uplink Control Information) under the condition that the PUSCH transmission exists on the TDD carrier; generating the UCI and transmitting the UCI through the determined PUSCH transmission. The UCI is transmitted by using the PUSCH transmitted on the TDD carrier, DAI (Downlink Assignment Index) domain indication information for dispatching the PDCCH / EPDCCH (Physical Downlink Control Channel / Enhanced Physical Downlink Control Channel) of the PUSCH in the TDD system can be more effectively utilized, the UCI bit number of FDD (Frequency Division Duplex) and / or the TDD carrier is rationally and effectively controlled, the transmission efficiency is improved, and the problem of occupation of a large amount of signaling overhead by the UCI and adverse effects caused thereby are avoided.

Description

technical field [0001] The present invention relates to the communication field, and in particular, to a method and device for sending uplink control information (UCI), and a method and device for receiving it. Background technique [0002] (1) Duplex mode [0003] The Long Term Evolution-Advance (hereinafter referred to as LTE-A) system supports three duplex modes: full frequency division duplex (Frequency Division Duplex, hereinafter referred to as FDD), half frequency division duplex (Half-duplex FDD, hereinafter referred to as H-FDD) and Time Division Duplex (TimeDivision Duplex, hereinafter referred to as TDD). The main differences between these three duplex methods are as follows: figure 1 shown. Among them, FDD means that the uplink and downlink transmissions are carried out on different carrier frequency bands, and both the base station and the terminal are allowed to receive and send signals at the same time. Therefore, FDD equipment requires two sets of transcei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L5/00
CPCH04L1/1607H04L5/0023H04L5/003
Inventor 高雪娟林亚男沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD