Methods and network nodes for improving OLPC functionality for HSUPA MIMO

摘要

A control node is configured to control a SIR-target for use by the radio network node when operating an Inner Loop Power Control. The radio network node receives a primary stream and a secondary stream while employing HSUPA MIMO. The radio network node detects a first indication of number of HARQ re-transmissions. The first indication is related to the primary stream. The radio network node detects a second indication of number of HARQ re-transmissions. The second indication is related to the secondary stream. The radio network node configures an Iub frame based on one or more of the first and second indication. The control node is configured to perform OLPC. Subsequently, the control node receives the Iub frame from the radio network node and extracts the first and/or second indication/s from the Iub frame. Next, the control node determines the SIR-target based on the first indication.

主权项

1. A method, performed by a control node, for performing Outer-Loop Power Control “OLPC”, wherein the control node is configured to control an Signal-to-Interference Ratio-target, “SIR-target”, for use by a radio network node when operating an Inner Loop Power Control “ILPC”, wherein the radio network node handles a primary stream and a secondary stream while employing High-Speed Uplink Packet Access Multiple-Input-Multiple-Output “HSUPA MIMO”, wherein the method comprises:
receiving a Iub frame from the radio network node; wherein the method further comprises:
extracting, from the Iub frame, a first indication of number of Hybrid Automatic Repeat reQuest “HARQ” re-transmissions, wherein the first indication is related to the primary stream; andextracting, from the Iub frame, a second indication of number of Hybrid Automatic Repeat reQuest “HARQ” re-transmissions, wherein the second indication is related to the secondary stream; and wherein the method further comprises:
determining the SIR-target based on the first indication.