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 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 and deriving local uplink transmission data associated with the received uplink transmission; sending a request to a first neighboring access node for first neighboring uplink transmission data associated with the uplink transmission as received by the first neighboring access node; receiving, from the first neighboring access node, the first neighboring uplink transmission data; conducting interference resolution of the uplink transmission based on the local uplink transmission data and the first neighboring uplink transmission data to obtain resolved uplink transmission data; and decoding the resolved uplink transmission data to obtain the decoded uplink data.