Methods, systems and devices for decoupled interference randomization for uplink reference signals

摘要

Interference between reference signals from user equipments in a wireless network, the method may be reduced by using a received time shift value from a node in the wireless network. An interference randomization technique may be applied to a reference signal and a sequence may be generated based on the reference signal to which the interference randomization technique has been applied. A processed reference signal may be derived by applying a time shift based on the time shift value to the sequence. The processed reference signal may be transmitted to the node. Related systems, methods, nodes and wireless devices are also described.

主权项

1. A method of reducing interference between reference signals from user equipments in a wireless network, the method comprising:
receiving a time shift value from a node in the wireless network; applying an interference randomization technique to a reference signal; generating a sequence based on the reference signal to which the interference randomization technique has been applied; comparing a Virtual Cell Identifier (VCID) for a serving cell of the user equipment with a Physical Cell Identifier (PCID) for the serving cell of the user equipment; selectively setting a time shift associated with the reference signal to the time shift value received from the network node, in response to determining that the VCID is different from the PCID; applying the time shift to the sequence to derive a processed reference signal; and transmitting the processed reference signal to the node.