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Controlling Validity Time of Uplink Grant in Target Cell during RACH-Less Handover
Controlling Validity Time of Uplink Grant in Target Cell during RACH-Less Handover
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机译:RACH减少切换期间控制目标小区中上行链路授权的有效时间
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摘要
Methods for handover of a wireless device from a source cell served by a source base station to a target cell served by a target base station. An example method, implemented in the source base station, comprises obtaining a command for transmission to the wireless device, the command comprising configuration information that comprises an indication of at least one uplink grant time for uplink resources in the target cell, specified in terms of at least one system frame number (SFN) value. The method further comprises transmitting the command to the wireless device. The configuration information in the command comprises information sufficient to enable the wireless device to determine a time or times for accessing uplink resources in the target cell without obtaining SFN values from the target cell. The command may be a handover command for a random access channel-less (RACH-less) handover of the wireless device to the target cell.
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