INDEXING ELEMENTS EXPANDED CONTROL CHANNEL FOR PHYSICAL DOWNLINK CONTROL CHANNEL SEARCH SPACE Russian patent published in 2016 - IPC H04W8/00 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to communication engineering and can be used in cellular communication systems. Method includes steps of indexed localized eCCE and distributed eCCE independently on the basis of aggregation level for transmission of expanded physical downlink control channel (ePDCCH). For example, physical localized eCCE can be indexed in order to increase frequency, while the indexing is an aggregation level mapped to physical indices. For distributed eCCE logical indexing can also take into account coordinate area of intercellular interference (ICIC). Indices eCCE belonging to the search space for the given level of aggregation (AGGL) may be distributed over different coordinate regions ENHANCEMENT. Besides, global logic indexing considering AGGL can be applied to localized eCCE and distributed eCCE, the logical indices localised eCCE and distributed eCCE alternate with each other. Area ICIC can also be taken into account in global indexing. Indexing eCCE considering AGGL can be used for the purpose of the ePDCCH and blind decoding and/or resource allocation for the ePDCCH. Physical indices eCCE can be used for producing implicit index for physical uplink control channel (PUCCH).

EFFECT: high reliability of transmitting information.

20 cl, 14 dwg