Indicating method, system and device for enhancing downlink control channel resources

Abstract

The invention provides an indicating method, a system and a device for enhancing downlink control channel resources. The indicating method for enhancing the downlink control channel resources includes that a network side sets an indicating enhanced-physical downlink control channel (E-PDCCH), a high layer signaling which carries configuration information of the indicating E-PDCCH is sent to user equipment (UE) which requires configuration of E-PDCCH resources, the network side configures corresponding E-PDCCH resources for the UE and sends the configuration information of the E-PDCCH resources which are configured for the UE through the indicating E-PDCCH, and the UE is informed of the configuration information of the E-PDCCH resources which correspond to the UE through the indicating E-PDCCH. By means of the indicating method, the system and the device for enhancing the downlink control channel resources, dynamic configuration of the E-PDCCH resources can be achieved under the condition that PDCCH resources are not occupied.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, system and equipment for indicating enhanced downlink control channel resources. Background technique [0002] The control channel configured for the UE defined in 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 for the UE is also proposed. It is 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 physical control format indication channel (PCFICH) channel indication or high-layer signaling. [0003] With the increase of the number of mobile users and the change of network deployment structure (such as heterogeneous network structure), the capacity of PDCCH 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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