Invention Grant
- Patent Title: Semi-persistent scheduling grants in heterogeneous networks
- Patent Title (中): 异构网络中的半持续调度授权
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Application No.: US13974954Application Date: 2013-08-23
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Publication No.: US09288004B2Publication Date: 2016-03-15
- Inventor: Alan Barbieri , Hao Xu , Madhavan Srinivasan Vajapeyam , Aleksandar Damnjanovic
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Nerrie M. Zohn
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04J3/16 ; H04W72/04 ; H04W16/14 ; H04W84/04 ; H04L1/00

Abstract:
Time division multiplexing (TDM) partitioning is one of the inter-cell interference coordination (ICIC) mechanisms considered for a heterogeneous network (HetNet) ICIC in a co-channel deployment. For example, in subframes that are pre-allocated to an evolved Node B (eNB), neighbor eNBs may not transmit, hence interference experienced by served user equipments (UEs) may be reduced. Semi-persistent scheduling (SPS) grants may have various available periodicities, which may not be compatible with TDM partitioning. Therefore, a UE may miss an SPS opportunity that was scheduled for a subframe that was not usable by the UE. Hence, using SPS grants with small periodicities in a heterogeneous network with TDM partitioning may require changes which may include adjusting the periodicities of the SPS grants, rescheduling of uplink SPS messages based on resource partitioning information (RPI), and/or determining RPI based on current SPS grants.
Public/Granted literature
- US20130343355A1 SEMI-PERSISTENT SCHEDULING GRANTS IN HETEROGENEOUS NETWORKS Public/Granted day:2013-12-26
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