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Method and system for dynamically raising upper limit of PDCCH capacity and mobile terminal

A capacity-capped, dynamic technology, applied in the field of LTE (Long Term Evolution), can solve the problems of reducing the efficiency and occupation of time-frequency resource scheduling

Active Publication Date: 2014-11-12
CHINA TELECOM CORP LTD
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Problems solved by technology

However, the problem with this method is that increasing the AL of the CCE can improve the reliability of DCI information transmission for a specific UE, but it occupies more PDCCH resources and reduces the number of UEs that can transmit DCI information at the same time, that is, to reduce the system The price of capacity is exchanged for the improvement of transmission reliability of DCI information
However, this method cannot realize the dynamic scheduling of time-frequency resources according to business requirements, thus significantly reducing the scheduling efficiency of time-frequency resources.

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  • Method and system for dynamically raising upper limit of PDCCH capacity and mobile terminal

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[0059] The present disclosure will be described below with reference to the accompanying drawings. It is to be noted that the following description is merely explanatory and exemplary in nature, and in no way serves as any limitation of the present disclosure, its application or uses. Relative arrangements of components and steps and numerical expressions and numerical values ​​set forth in the embodiments do not limit the scope of the present disclosure unless otherwise specifically stated. Additionally, techniques, methods and devices known to those skilled in the art may not be discussed in detail but are intended to be part of the description where appropriate.

[0060] To solve the above problems, the following embodiments of the present disclosure provide a solution for dynamically increasing the upper limit of available time-frequency resources of the PDCCH channel. Under the premise of ensuring the backward compatibility of the LTE system, the technical solution incre...

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Abstract

The invention relates to a method and system for dynamically raising the upper limit of the PDCCH capacity and a mobile terminal. The method comprises a high-level indication number sent by a receiving network side through RRC signaling is received, wherein the high-level indication number is determined on the basis of channel quality fed back by uplink data and / or the number of current users in the active state in a cell; according to predefined assignment of a PCFICH, CFI information carried in the PCFICH is recognized; time-frequency resources occupied by a PDCCH are determined according to the received high-level indication number, the recognized CFI information and a user terminal version. According to the method and system for dynamically raising the upper limit of the PDCCH capacity and the mobile terminal, on the premise that backward compatibility is guaranteed, dynamic configuration can be achieved, and the PDCCH capacity can be recognized.

Description

technical field [0001] The present disclosure relates to an LTE (Long Term Evolution, Long Term Evolution) mobile communication system, in particular, to a method, system and mobile terminal for dynamically increasing the upper limit of a PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) capacity. Background technique [0002] The 3GPP LTE system is a long-term evolution version of 3G (3rd Generation, third-generation mobile communication system). LTE system and existing GSM (Global System for Mobile communications, Global System for Mobile Communications), WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access), CDMA2000 (Code Division Multiple Access2000, Code Division Multiple Access 2000) and other mobile Compared with communication systems, it provides higher user peak rate, larger coverage and better cell user QoS (Quality of Service, quality of service), etc. The LTE-A (LTE-Advanced) system is its enhanced ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L27/26
Inventor 李欣陈鹏蒋铮
Owner CHINA TELECOM CORP LTD
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