发明名称 |
Device and Method for Adaptive Channel Estimation |
摘要 |
A method to be performed at a station configured to connect to a Long Term Evolution radio access network (LTE-RAN) to utilize enhanced Multimedia Broadcast Multicast Services using a Multicast-Broadcast Single-Frequency Network (MBSFN). The method including receiving a MBSFN subframe having a MBSFN subframe structure including a plurality of Orthogonal Frequency-Division Multiplexing (OFDM) symbols, a first one of the OFDM symbols having a first reference symbol inserted therein, a second one of the OFDM symbols having a second reference symbol inserted therein, determining a rate of change of channel conditions being experienced by the station and performing a non-destaggered channel estimation when the rate of change of channel conditions is greater than a predetermined threshold, the non-destaggered channel estimation using a first Channel Impulse Response (CIR) at the first OFDM symbol and a second CIR at the second OFDM symbol. |
申请公布号 |
US2015349979(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
US201414290433 |
申请日期 |
2014.05.29 |
申请人 |
APPLE INC. |
发明人 |
JI Zhu;Sebeni Johnson O.;Damji Navid |
分类号 |
H04L25/02;H04L27/26;H04W4/06 |
主分类号 |
H04L25/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
at a station configured to connect to a Long Term Evolution radio access network (LTE-RAN) to utilize enhanced Multimedia Broadcast Multicast Services (e-MBMS) using a Multicast-Broadcast Single-Frequency Network (MBSFN),
receiving a MBSFN subframe from an evolved NodeB (eNB) of the LTE-RAN, the MBSFN subframe having a MBSFN subframe structure including a plurality of Orthogonal Frequency-Division Multiplexing (OFDM) symbols, a first one of the OFDM symbols having a first reference symbol inserted therein, a second one of the OFDM symbols having a second reference symbol inserted therein;determining a rate of change of channel conditions being experienced by the station on a channel that the station is receiving a signal including the MBSFN subframe from the eNB; andperforming a non-destaggered channel estimation when the rate of change of channel conditions is greater than a predetermined threshold, the non-destaggered channel estimation using a first Channel Impulse Response (CIR) at the first OFDM symbol and a second CIR at the second OFDM symbol. |
地址 |
Cupertino CA US |