Method and equipment for determining number of channel control blocks

A technology for determining modules and control channel blocks, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problem of small information redundancy coding gain, unreasonable number of CCEs, and inability to take into account cell capacity and PDCCH demodulation performance And other issues

Active Publication Date: 2010-12-22
DATANG MOBILE COMM EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

If too many CCEs are selected, the coding gain brought by information redundancy will be large, but the capacity of the entire cell will be reduced; if the number of CCEs selected is too small, although the capacity of the cell will increase, the coding gain brought by information redundancy will Gain

Method used

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  • Method and equipment for determining number of channel control blocks
  • Method and equipment for determining number of channel control blocks
  • Method and equipment for determining number of channel control blocks

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Embodiment Construction

[0022] In the embodiment of the present invention, according to CQI (Channel Quality Indicator, Channel Quality Indicator) information, determine the maximum number of bits that each optional PDCCH can carry in a radio frame, and according to the determined maximum number of bits that each PDCCH can carry, and Determine the quality parameter of each PDCCH according to the amount of control signaling data that needs to be transmitted currently; select from all optional PDCCHs in a radio frame according to the comparison result of the largest quality parameter among the determined quality parameters of all PDCCHs and the threshold A PDCCH, and determine the number of control channel blocks corresponding to the selected PDCCH. When determining the number of CCEs, the capacity of the cell and the demodulation performance of the PDCCH are considered, so that the number of CCEs selected is reasonable, thereby reducing the impact on the capacity of the cell and the transmission qualit...

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Abstract

The invention relates to a wireless communication technology, particularly to a method and equipment for determining the number of CCE (Channel Control Equipment), which not only can be used for determining the number of the CCE, but also has cell capacity and PDCCH demodulation performance, so that the selected number of the CCE is relatively reasonable, thereby reducing the influence on the capacity of cells and the transmission quality of the PDCCH. The method of the embodiment of the invention comprises the following steps of: determining the maximum number of bits carried by each selectable PDCCH in a wireless frame according to CQI information; determining the quality parameter of each PDCCH according to the determined maximum number of bits carried by each PDCCH and the data size of the control signaling needing to be transmitted currently; and comparing the maximum quality parameter in the determined quality parameters of all PDCCHs with the threshold value, selecting a PDCCH from all selectable PDCCHs in the wireless frame according to the comparative result, and determining the number of control channel blocks corresponding to the selected PDCCH.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method and equipment for determining the number of CCE (Control ChannelElement, channel control block). Background technique [0002] In an LTE (Long Term Evolution, long-term evolution) system, a base station transmits uplink scheduling signaling, downlink scheduling signaling, and power control signaling through a PDCCH (physical downlink control channel, physical downlink control channel). System throughput is very important, and the required bit error rate is much lower than that of PDSCH (Physical Downlink Shared Channel) channel. [0003] When a terminal (UE) receives signaling through the PDCCH, it cannot know the actual physical resource location of the PDCCH in advance, and only through blind detection, it can receive signaling through the PDCCH after detecting the PDCCH. [0004] This blind detection method increases the complexity of the UE and affects th...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04W28/16
Inventor 崔潇扬李远军张龙
Owner DATANG MOBILE COMM EQUIP CO LTD
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