公开(公告)号：US10965349B2

公开(公告)日：2021-03-30

申请号：US16559356

申请日：2019-09-03

Applicant: Cisco Technology, Inc.

Inventor： Matthew Aaron Silverman ,  Fred J. Anderson ,  Ardalan Alizadeh ,  Huaiyi Wang

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00

Abstract: In one embodiment, a method includes identifying a number of configured proactive repetitions in downlink transmissions from the base station, selecting k antenna states for receiving repetitive downlink transmissions among the number of antenna states, where k equals the number of configured proactive repetitions, and where each of the k antenna states corresponds to each of the repetitive downlink transmissions, transmitting a CSI report for each of the k antenna states to the base station, where a CSI report for an antenna state is used by the base station to adjust configurations for the corresponding downlink transmission, receiving signals for each of the k repetitive downlink transmissions from the base station using each of the k antenna states, and decoding the downlink transmission based on k sets of received signals, each of the k sets being received using each of the k selected antenna states.

公开(公告)号：US20210075534A1

公开(公告)日：2021-03-11

申请号：US16562598

申请日：2019-09-06

Applicant: Cisco Technology Inc.

Inventor： Huaiyi Wang ,  Matthew Aaron Silverman ,  Zhigang Gao ,  Evgeny Yankevich

IPC: H04J11/00 ,  H04L5/00 ,  H04L25/03

Abstract: A wireless node in a wireless communication network. The wireless node includes one or more interfaces configured to receive wireless transmissions, a memory comprising instructions, and a hardware processor. The wireless node samples a received wireless transmission into a plurality of time-based subdivisions. for each subdivision of the wireless transmission the wireless node determines a cross-correlation between the subdivision and a local syncword. The local syncword is constructed to correlate to any primary synchronization signal, PSS, of a plurality of PSSs defined for synchronization in the wireless network. The wireless node, based on the cross-correlation, determines whether one PSS of the plurality of PSSs is present in the subdivision of the wireless transmission.