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Device and method for dynamically confirming CFI (Control Format Indication)

A technology of control format indication and dynamic determination, applied in the field of communication, can solve problems such as unreasonable utilization of downlink physical resources, and achieve the effect of improving utilization rate

Inactive Publication Date: 2010-12-29
GLOBAL INNOVATION AGGREGATORS LLC
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  • Description
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  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a device and method for dynamically determining the control format indication, so as to solve the problem of unreasonable utilization of downlink physical resources caused by the method of using fixed CFI values ​​in the prior art

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  • Device and method for dynamically confirming CFI (Control Format Indication)
  • Device and method for dynamically confirming CFI (Control Format Indication)
  • Device and method for dynamically confirming CFI (Control Format Indication)

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Embodiment Construction

[0060] The invention proposes an improved method and device, so that control domain resources and data domain resources in downlink physical resources can be allocated reasonably and flexibly, and the utilization rate of PDCCH and PDSCH resources is improved.

[0061] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention. For the sake of clarity and simplicity, detailed descriptions of known functions and constructions in the devices described herein will be omitted when it may obscure the subject matter of the present invention.

[0062] first combined with figure 1 The device of the present invention is described in detail.

[0063] Such as figure 1 as shown, figure 1 It is a schematic structural diagram of th...

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Abstract

The invention discloses a device and a method for dynamically confirming a CFI (Control Format Indication). The device comprises a cell parameter configuration unit, a PHICH (Physical Hybrid Indication Channel) calculation unit, a scheduling calculation unit, a CFI calculation unit and a CFI mapping unit. The method comprises the following steps of: acquiring cell configuration parameters; calculating a PHICH parameter of the cell according to the cell configuration parameters; calculating and acquiring a total CCE (Command Control Equipment) resource bit needed by the empty subframe according to the numbers of information to be scheduled and UE (User Equipment) to be scheduled in the empty subframe when the number of the information to be scheduled is changed in an empty subframe of the cell; and calculating a total REG (Registered) number needed by the empty subframe and calculating the CFI value of the empty subframe of the cell according to the total REG number needed by the emptysubframe. The invention dynamically confirms the CFI value and improves the resource utilization ratios of downlink PDCCH (Physical Downlink Control Channel) and PDSCH (Physical Downlink Shared Channel) resources.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a device and method for dynamically determining a control format indication. Background technique [0002] The CFI (Control Format Indicator, control format indication) information in the LTE (Long Term Evolution, long-term evolution) system indicates the OFDM (orthogonal frequency division multiplexing, orthogonal frequency division multiplexing) used to transmit the PDCCH (Physical Downlink Control Channel, physical downlink control channel). multiplexing) number of symbols. The value of CFI determines the control domain (including packet-specific control channel PDCCH, physical hybrid retransmission indicator channel PHICH and physical format indicator channel PCFICH) and data domain (ie PDSCH, Physical Downlink Shared Channel, Physical Downlink Shared Channel) in a subframe ) occupies the proportion of OFDM symbols. [0003] The document 3GPP TS36.211.8.5.0 s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04W72/04H04L1/18H04L12/24
CPCH04W72/04
Inventor 谭源春彭佛才
Owner GLOBAL INNOVATION AGGREGATORS LLC
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