US Patent No. 10,251,165

METHOD AND APPARATUS FOR RESOURCE MAPPING FOR PHYSICAL CHANNEL IN MULTIPLE CELL SYSTEM


Patent No. 10,251,165
Issue Date April 02, 2019
Title Method And Apparatus For Resource Mapping For Physical Channel In Multiple Cell System
Inventorship Hanbyul Seo, Anyang-si (KR)
Inkwon Seo, Anyang-si (KR)
Kijun Kim, Anyang-si (KR)
Assignee LG ELECTRONICS INC., Seoul (KR)

Claim of US Patent No. 10,251,165

1. A method for receiving a downlink channel from at least one transmit (Tx) point among a plurality of Tx points by a user equipment (UE), the method comprising:receiving, from a first Tx point, information related to a resource mapping position of a downlink data channel, and an indicator which indicates a second Tx point;
receiving downlink data through cooperative transmission of the first Tx point and the second Tx point,
wherein the first Tx point is a serving cell and the second Tx point is a neighbor cell; and
demodulating the downlink data channel, based on whether a downlink subframe of the first Tx point is a Multicast Broadcast Single Frequency Network (MBSFN) subframe or a non-MBSFN subframe,
wherein, when the downlink subframe is the MBSFN subframe of the first Tx point, the downlink data channel is demodulated based on a UE-specific reference signal of the first Tx point; and
wherein, when the downlink subframe is the non-MBSFN subframe of the first Tx point, the downlink data channel is demodulated based on a cell-specific reference signal (CRS) of the first Tx point and on an assumption that the downlink channel is not mapped to a resource element (RE) position of a CRS of the second Tx point according to the information related to the resource mapping position of the downlink data channel.