Patent ID: 8675492
Filing Date: 2014-03-18
Classification: H04L,H04W

Abstract:
1. A method in a base station for load balancing within Semi-Persistent Scheduling (SPS) comprising: activating downlink or uplink SPS transmission for a User Equipment (UE), for a subframe; obtaining information about SPS transmission load on a Physical Shared Channel or transmission load related to SPS transmissions on a Physical Shared Channel, on a Physical Control Channel; determining for which subsequent subframe within a duration of T subframes, the SPS transmission load on the Physical Shared Channel or the transmission load related to Physical Shared Channel SPS transmissions, on the Physical Control Channel, is the lowest among the subframes within the duration of T subframes; and scheduling SPS transmission on a Physical Shared Channel to be valid in the determined subframe having the lowest SPS transmission load in the case the SPS transmission load on the Physical Shared Channel is the lowest among the subframes within the duration of T subframes, or scheduling SPS transmission on a Physical Shared Channel to be valid in a subframe determined such that a Hybrid Automatic Repeat reQuest (HARQ) ACK/NACK response to SPS transmission on the Physical Shared Channel is transmitted on the Physical Control Channel in the determined subframe, within the duration of T subframes.