Methods and systems for CSI-RS resource allocation in LTE-advance systems

摘要

Systems and methods for the configuration of channel state information reference signals (CSI-RS) are disclosed. The systems and methods include providing user equipment with the locations of CSI-RS reuse information. Several encoding patterns and exemplary methodology for both the identification of the CSI-RS resource element locations are provided in exemplary embodiments. In addition, exemplary embodiments provide muting methods and systems for a physical downlink shared channel resource elements.

主权项

1. A method for transmitting a channel state information reference signal (CSI-RS) comprising:
identifying a location of one or more subframes where one or more CSI-RS reuse patterns are transmitted; identifying a location of one or more resource elements (REs) used to transmit a CSI-RS within a CSI-RS subframe wherein the REs that comprise a CSI-RS reuse pattern are specified by the number of CSI-RS ports and the location of a first resource element (RE #0) in the reuse pattern; providing a location of the one or more subframes and one or more REs where the one or more CSI-RS reuse patterns are transmitted to one or more pieces of user equipment (UE); and generating one or more CSI-RS modulation symbols in one or more CSI-RS REs, respectively, where each symbol contains a CSI-RS sequence element as a multiplication component.