Invention Grant
US08976698B2 Methods and apparatus for radio link monitoring in new carrier type (NCT) in a long term evolution (LTE) system
有权
在长期演进(LTE)系统中的新载波类型(NCT)中的无线电链路监测的方法和装置
- Patent Title: Methods and apparatus for radio link monitoring in new carrier type (NCT) in a long term evolution (LTE) system
- Patent Title (中): 在长期演进(LTE)系统中的新载波类型(NCT)中的无线电链路监测的方法和装置
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Application No.: US13761807Application Date: 2013-02-07
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Publication No.: US08976698B2Publication Date: 2015-03-10
- Inventor: Wanshi Chen , Tao Luo , Hao Xu , Peter Gaal
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson & Sheridan, L.L.P.
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W24/00 ; H04J3/14 ; H04L1/00 ; H04L5/00

Abstract:
Certain aspects provide methods and apparatus for performing radio link monitoring (RLM) based on channel state information reference signals (CSI-RSs). Such RLM may be performed for certain carriers, such as New Carrier Type (NCT) in a Long Term Evolution (LTE) system, for example, in which reference signals conventionally used for RLM (e.g., common reference signals (CRSs) in LTE Rel-8/9/10) are not available in every subframe. Radio link failure (RLF) may be declared based on the RLM. One example method generally includes determining at least one of a first set of CSI-RS resources for use in channel estimation to perform RLM measurements or a second set of CSI-RS resources for use in interference estimation to perform the RLM measurements and performing the RLM measurements based on the one or more determined sets of CSI-RS resources. Certain aspects provide methods and apparatus for performing radio resource management (RRM) based on CSI-RSs.
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