HS-DPCCH Power Control in Multi-Flow Soft Handover

The patent applies local quality by configuring different HS-DPCCH power offsets for different cell groups based on their specific uplink path loss characteristics. Each cell group receives a customized power offset configuration rather than a uniform setting, allowing the system to adapt to local channel conditions and thereby improve HS-DPCCH receiving performance while maintaining operational simplicity through automated configuration.

The patent implements self-service by enabling the UE to autonomously determine and adjust its HS-DPCCH power offset based on pre-configured parameters and measured uplink path loss. The UE automatically selects the appropriate power offset from a set of configured values without requiring complex network-side optimization or manual configuration, thereby improving receiving performance while minimizing the increase in device and network complexity.

The patent applies parameter changes by dynamically adjusting the HS-DPCCH power offset parameter based on the specific uplink path loss conditions of each cell group. Rather than using a fixed high power offset for all cells, the system modifies the power parameter adaptively - increasing it only for cell groups experiencing greater path loss and maintaining lower levels for others. This selective parameter adjustment improves decoding performance where needed while minimizing overall power consumption and inter-cell interference.