A method, system and device for indicating enhanced downlink control channel resources

Abstract

The present invention provides an indication method, system and equipment for enhanced downlink control channel resources. The method for indicating the enhanced downlink control channel resources includes: the network side sets an indicated E-PDCCH, and sends high-layer signaling carrying the configuration information of the indicated E-PDCCH to the UE that needs to configure the E-PDCCH resource; the network side is The UE configures corresponding E-PDCCH resources, and sends the configuration information of the E-PDCCH resources configured for the UE through the indicated E-PDCCH; the UE learns the corresponding E-PDCCH resources through the indicated E-PDCCH Configuration information of E-PDCCH resources. The application of the present invention can realize dynamic allocation of E-PDCCH resources without occupying PDCCH resources.

Description

Technical field [0001] The present invention relates to the field of mobile communication technology, and in particular to an indication method, system and equipment for enhancing downlink control channel resources. Background technique [0002] The control channel configured to the UE defined in the 3GPP LTE specification version 8, 9 and 10 is the physical downlink control channel (PDCCH), and in the 3GPP LTE specification version 11, an enhanced PDCCH configured to the UE is also proposed, called E-PDCCH. The E-PDCCH generally occupies the first 1 to 3 symbols of each subframe, and the specific number of symbols can be notified to the UE through a physical control format indicator channel (PCFICH) channel indicator or high-level signaling. [0003] With the increase in the number of mobile users and changes in network deployment structures (such as heterogeneous network structures), the current PDCCH capacity can no longer meet the scheduling requirements of user data transmiss...

AI Technical Summary

Problems solved by technology

[0019] In this method, although DCI can be sent to each UE through the PDCCH, so as to realize dynamic configuration such as dynamic E-PDCCH resource allocation, AMC, precoding, etc., the terminal still needs to perform initial access through the PDCCH first, and it also needs to occupy a lot of resources. PDCCH resources to transmit / receive DCI

In addition, since the inherent problems in PDCCH still exist, for example, the coverage of PDCCH is small, the information sent through PDCCH has a fixed format, so it is difficult to be fully compatible with the configuration information of E-PDCCH sent, etc., so in practical applications It is also difficult to meet the actual needs

[0020] In summary, since the above-mentioned problems still exist in the E-PDCCH transmission method in the prior art, it is difficult to effectively realize the dynamic allocation of E-PDCCH resources, which cannot meet the needs of practical applications

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