发明名称 |
Uplink Synchronization Maintenance Principles in Wireless Networks |
摘要 |
A cell within cellular network includes user equipments (UEs) that transmit data to a base station (eNB). Over a period of time, not all of the UEs will have data to transmit. The UEs are tracked as a scheduled portion and an unscheduled portion, wherein a UE is included in the scheduled portion in response to receiving a scheduling request from the UE. Synchronization is maintained between the eNB and each UE in the scheduled portion by sending a timing adjustment (TA) command if needed. Synchronization is maintained between the eNB and each UE in the unscheduled portion by allocating a periodic reference signal (sync-RS) to each UE in the unscheduled portion and by sending a respective timing adjustment (TA) command if needed to each respective UE in the unscheduled portion in response to a respective sync-RS received from each UE in the unscheduled portion.
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申请公布号 |
US2013242973(A1) |
申请公布日期 |
2013.09.19 |
申请号 |
US201213531006 |
申请日期 |
2012.06.22 |
申请人 |
BERTRAND PIERRE;MUHAREMOVIC TARIK;SHEN ZUKANG;TEXAS INSTRUMENTS INCORPORATED |
发明人 |
BERTRAND PIERRE;MUHAREMOVIC TARIK;SHEN ZUKANG |
分类号 |
H04J3/06 |
主分类号 |
H04J3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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