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Method and apparatus for selecting control channel elements for physical downlink control channel

A technology for controlling channel elements and physical downlinks, which is applied in the field of telecommunication and can solve problems such as reducing PDCCH capacity and low system capacity

Inactive Publication Date: 2014-12-03
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact of uneven power distribution between different PDCCH OFDM symbols may be further increased by introducing power control functionality such as reference signal (RS) or PCFICH power boosting
This may reduce the already limited PDCCH capacity, resulting in an even lower system capacity

Method used

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  • Method and apparatus for selecting control channel elements for physical downlink control channel
  • Method and apparatus for selecting control channel elements for physical downlink control channel
  • Method and apparatus for selecting control channel elements for physical downlink control channel

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Embodiment Construction

[0041] In the following description, for purposes of illustration and not limitation, specific details such as specific architectures, interfaces, techniques, etc. are set forth in the following description in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments that depart from these specific details. That is, those skilled in the art will be able to devise various arrangements which, although not explicitly described or shown herein, embody the principles of the invention and are included within its spirit and scope. In some instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail. All statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof, are intended to encompass bot...

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PUM

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Abstract

A selector (40) and selection method performed at a base station (28) is configured to determine which control channel element(s) (CCE(s)) to use for a physical downlink control channel (PDCCH) comprising a subframe according to criteria that improves performance of a telecommunications system (20).

Description

technical field [0001] The present invention relates to telecommunications, and in particular to methods and devices for the formation of control channels in subframes for information communicated over a radio interface using multiple subcarriers. Background technique [0002] In a typical cellular radio system, wireless terminals, also known as mobile stations and / or user equipment units (UEs), communicate via a radio access network (RAN) with one or more core networks. Wireless terminals may be mobile stations or user equipment units (UE), such as mobile telephones ("cellular" telephones) and laptop computers with wireless capabilities, such as mobile termination, and thus may be, for example, portable, pocket, hand-held, computer built-in Or mobile devices on board, which communicate with the radio access network for voice and / or data. [0003] The geographical area covered by the radio access network (RAN) is divided into cell areas, where each cell area is defined by a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W48/12H04W72/54
CPCH04W72/04H04L5/0053
Inventor L·赫德伦A·约翰逊
Owner TELEFON AB LM ERICSSON (PUBL)