Uplink interference resolution

摘要

An access node in a wireless communication network conducts interference resolution to resolve decoding ambiguities in a received uplink transmission. The access node is assisted by receiving uplink transmission data from another, assisting access node. The received uplink transmission data may include, for example, frequency domain data elements as received by the assisting access node and received and expected reference signals. The access node uses the received uplink transmission data and related local uplink transmission data to estimate channel transfer functions which are then used to estimate and decode the received data. The access node may also improve estimated channel transfer functions by cross-correlation nulling.

主权项

1. A method for assisting interference resolution of an uplink transmission by an access node in a wireless communication system, the method comprising:
receiving, at the access node, an uplink transmission from a terminal node and deriving local uplink transmission data associated with the received uplink transmission, the local uplink transmission data including resource demapper output data associated with the uplink transmission; receiving a request from a second access node for the local uplink transmission data; and sending the local uplink transmission data to the second access node.