Feedback method and device for channel state information and positive confirmation/negative confirmation information

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: 2013-05-08
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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  • Feedback method and device for channel state information and positive confirmation/negative confirmation information
  • Feedback method and device for channel state information and positive confirmation/negative confirmation information

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Embodiment 1

[0099] Figure 4 It is a schematic diagram of the configuration of a newly added carrier type according to an embodiment of the present invention, such as figure 2 As shown, the UE is configured and activated to use 3 downlink backward compatible carriers, namely CC1, CC2, and CC3, where CC1 is PCell, CC2 and CC3 are SCell, CC1's ServCellIndex is 0, and CC2 and CC3's ServCellIndex are respectively The numbers 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. Each downlink carrier in the figure performs periodic CSI feedback. And the CSI feedback period of ACC1 and ACC2 is exactly the same as that of CC1. In a given subframe, the PUCCH report types of the serving cells have the same priority, and the priority of the numbered ServCellIndex and the numbered AddCellIndex are also the same. If in a given subframe, CC1, CC2, and CC3 have periodic CS...

Embodiment 2

[0101] Such as Figure 4 As shown, the UE is configured and activated to use 3 downlink backward compatible carriers, namely CC1, CC2, and CC3, where CC1 is PCell, CC2 and CC3 are SCell, CC1's ServCellIndex is 0, and CC2 and CC3's ServCellIndex are respectively The numbers 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. Each downlink carrier in the figure performs periodic CSI feedback. , And the CSI feedback period of ACC1 and ACC2 is exactly the same as that of CC1. In a given subframe, the PUCCH report types of the serving cells have the same priority, and the priority of the numbered ServCellIndex is high. If in a given subframe, CC1, CC2, and CC3 have periodic CSI feedback conflicts, the smallest one of the ServCellIndex of each downlink backward compatible carrier is fed back at this time, that is, the ServCellIndex of CC1. At the same ...

Embodiment 3

[0103] Such as Figure 4 As shown, the UE is configured and activated to use 3 downlink backward compatible carriers, namely CC1, CC2, and CC3, where CC1 is PCell, CC2 and CC3 are SCell, CC1's ServCellIndex is 0, and CC2 and CC3's ServCellIndex are respectively The numbers are 3 and 4, and CC1 is configured with new carriers ACC1 and ACC2, and is activated for use. At this time, the numbers of CC1, ACC1, and ACC2 are 1, 3, and 5 respectively. The downlink carriers in the figure all perform periodic CSI feedback , And the CSI feedback period of ACC1 and ACC2 is exactly the same as that of CC1. In a given subframe, the PUCCH report types of the serving cells have the same priority, and the priority of the number AddCellIndex is high. If a periodic CSI feedback conflict occurs in CC1, CC2, and CC3 in a given subframe, the smallest one of the ServCellIndex of each downlink backward compatible carrier is fed back, that is, the ServCellIndex of CC1. At the same time, it can be known f...

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Abstract

The invention discloses a feedback method and a device for channel state information and positive confirmation / negative confirmation information. The method comprises that under the condition that backward compatible carrier and non-backward compatible carrier of a newly added carrier type conduct carrier aggregation, a Serv Cell Index code used for identifying the backward compatible carrier is used by a user device and codes used for identifying the newly added carrier type and the backward compatible carrier matched with the newly added carrier type are added; and a customer satisfaction index (CSI) of the carrier is selected between the backward compatible carrier and the non-backward compatible carrier and fed back according the Serv Cell Index code and the newly added code. According to the feedback method and the device for the channel state information and the positive confirmation / negative confirmation information, a periodical CSI feedback principle of a plurality of the backward compatible carrier with the same physical uplink control channel (PUCCH) is still applicable after the newly added carrier is imported and CSI feedback of the backward compatible carrier is not influenced.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a method and device for feedback of channel state information and positive confirmation / negative confirmation information. 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 (Quality of Service, referred to as QoS) of mobile communication. Before large-scale commercial use, the research and development of the next-generation mobile communication system has already begun. A typical example is the Long-Term Evolution initiated by the 3rd Generation Partnership Project (3GPP). Term Evolution, referred to as LTE for short) project, the highest spectrum bandwidth that the LTE system can provide is 20MHz (megahertz). With the further evolution of the network, Long-Term Evolution Advance (LTE-A), as the evolution sy...

Claims

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Application Information

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Patent Type & Authority Applications(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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