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Channel state information, positive confirmation/negative confirmation information feedback method and device

A technology of channel state information and feedback devices, which is applied in the direction of using the return channel for error prevention/detection, digital transmission system, and error prevention, and can solve the problems that the feedback bit cascading rules cannot be applied or cannot be applied.

Inactive Publication Date: 2017-09-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In related technologies, after the introduction of new carrier types, the periodic CSI feedback rules of multiple backward compatible carriers with the same PUCCH report type priority cannot be applied, and the HARQ-ACK of multiple backward compatible carriers is fed back in PUCCH format3 Even the feedback bit cascading rule cannot be applied even when the time is 0. Therefore, the present invention provides a method and device for channel state information, positive confirmation / negative confirmation information feedback, to at least solve the above-mentioned problems

Method used

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  • Channel state information, positive confirmation/negative confirmation information feedback method and device
  • Channel state information, positive confirmation/negative confirmation information feedback method and device
  • Channel state information, positive confirmation/negative confirmation information feedback method and device

Examples

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Embodiment 1

[0099] Figure 4 is a schematic configuration diagram of a newly added carrier type according to an embodiment of the present invention, as shown in figure 2 As shown, there are 3 downlink backward compatible carriers configured and activated by the UE, namely CC1, CC2 and CC3, where CC1 is PCell, CC2 and CC3 are SCells, the ServCellIndex of CC1 is 0, and the ServCellIndex of CC2 and CC3 are respectively are 3 and 4, and CC1 is configured with new carriers ACC1 and ACC2, and is activated for use. At this time, the numbers AddCellIndex of CC1, ACC1, and ACC2 are 3, 5, and 1 respectively, and each downlink carrier in the figure performs periodic CSI feedback , and the CSI feedback cycle of ACC1 and ACC2 is exactly the same as that of CC1, in a given subframe, the PUCCH report types of the above serving cells have the same priority, and the priority of the numbered ServCellIndex and the numbered AddCellIndex is also the same. If a periodic CSI feedback conflict occurs between C...

Embodiment 2

[0101] like Figure 4 As shown, there are 3 downlink backward compatible carriers configured and activated by the UE, namely CC1, CC2 and CC3, where CC1 is PCell, CC2 and CC3 are SCells, the ServCellIndex of CC1 is 0, and the ServCellIndex of CC2 and CC3 are respectively are 3 and 4, and CC1 is configured with new carriers ACC1 and ACC2, and is activated for use. At this time, the numbers AddCellIndex of CC1, ACC1, and ACC2 are 3, 5, and 1 respectively, and each downlink carrier in the figure performs periodic CSI feedback , and the CSI feedback cycle of ACC1 and ACC2 is exactly the same as that of CC1, in a given subframe, the PUCCH report types of the above serving cells have the same priority, and the priority of the numbered ServCellIndex is higher. If a periodic CSI feedback conflict occurs between CC1, CC2, and CC3 in a given subframe, at this time, the smallest ServCellIndex of each downlink backward compatible carrier is fed back, that is, the ServCellIndex of CC1. At ...

Embodiment 3

[0103] like Figure 4 As shown, there are 3 downlink backward compatible carriers configured and activated by the UE, namely CC1, CC2 and CC3, where CC1 is PCell, CC2 and CC3 are SCells, the ServCellIndex of CC1 is 0, and the ServCellIndex of CC2 and CC3 are respectively are 3 and 4, and CC1 is configured with new carriers ACC1 and ACC2, and is activated. At this time, the numbers AddCellIndex of CC1, ACC1, and ACC2 are 1, 3, and 5 respectively, and each downlink carrier in the figure performs periodic CSI feedback , and the CSI feedback cycle of ACC1 and ACC2 is exactly the same as that of CC1, in a given subframe, the PUCCH report types of the above serving cells have the same priority, and the priority of the number AddCellIndex is higher. If a periodic CSI feedback conflict occurs between CC1, CC2, and CC3 in a given subframe, the smallest ServCellIndex of each downlink backward compatible carrier is fed back at this time, that is, the ServCellIndex of CC1. At the same tim...

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Abstract

The present invention discloses a channel state information, positive confirmation / negative confirmation information feedback method and device. The method includes: when a user equipment performs carrier aggregation on a backward compatible carrier and a non-backward compatible carrier of a newly added carrier type, Use the number ServCellIndex used to identify the backward compatible carrier, and increase the number used to identify the new carrier type and the backward compatible carrier paired with the new carrier type; according to the number ServCellIndex and the added number, the backward compatible carrier and Among non-backward compatible carriers, the CSI of the selected carrier is fed back. The present invention can realize that the periodic CSI feedback rule of multiple backward compatible carriers with the same PUCCH report type priority is still applicable after the new carrier is introduced, and does not affect the CSI feedback of the backward compatible carriers.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a channel state information, positive confirmation / negative confirmation information feedback method and device. Background technique [0002] With the development of the mobile communication industry and the increasing demand for mobile data services, people have higher and higher requirements for the speed and quality of service (Qos) of mobile communication. Before large-scale commercial use, the research and development of the next-generation mobile communication system has already started, and the typical one is the Long-Term Evolution (Long-Term Evolution) initiated by the 3rd Generation Partnership Project (referred to as 3GPP). Term Evolution (abbreviated as LTE) project, the highest spectrum bandwidth that the LTE system can provide is 20 MHz (megahertz). With the further evolution of the network, LTE (Long-Term Evolution Advance, referred to as LTE-A) as an evolut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16
Inventor 韩晓钢苟伟夏树强戴博左志松
Owner ZTE CORP
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