Node and method for uplink detection with an assigned uplink physical layer identity

摘要

Example embodiments presented herein are directed towards the elimination of physical layer identity ambiguities for uplink detection in a wireless network. Some of the example embodiments are directed towards a source network node, and corresponding methods therein, for assigning an unique uplink physical layer identity for a user equipment uplink transmission of a first user equipment being served by the source network node. The unique uplink physical layer identity is provided to ensure that at least one second user equipment, which may be in proximity to a non-serving cell associated with the uplink transmission, does not have a physical layer identity ambiguity with the first user equipment. Some of the example embodiments are also directed towards a target network node, and corresponding methods therein, for performing uplink detection of the first user equipment using the unique physical layer identity described above.

主权项

1. A method, in a source network node, for assigning an uplink physical layer identity for a user equipment uplink transmission of a first user equipment being served by the source network node, the method comprising:
identifying that an uplink physical layer identity for the first user equipment is equal to an uplink physical layer identity for at least one second user equipment, wherein the first user equipment is in proximity to a non-serving cell and the at least one second user equipment is in proximity to or being served by the one non-serving cell; assigning a unique uplink physical layer identity to the first user equipment such that the unique uplink physical layer identity of the first user equipment does not equal the uplink physical layer identity of the at least one second user equipment; and initiating uplink detection for the first user equipment, using the unique uplink physical layer identity, wherein the uplink physical layer identity is a Primary Scrambling Code, PSC, or a Physical Cell Identity, PCI.