Invention Application
- Patent Title: JOINT TRANSMISSION OF PRECODED AND UNPRECODED SOUNDING REFERENCE SIGNALS IN UPLINK
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Application No.: US15689476Application Date: 2017-08-29
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Publication No.: US20180097595A1Publication Date: 2018-04-05
- Inventor: Yi HUANG , Wei ZENG , Wanshi CHEN , Hao XU , Tingfang JI
- Applicant: QUALCOMM Incorporated
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04L1/00

Abstract:
Both precoded sounding reference signals (SRS) and unprecoded SRS are transmitted from a UE to an eNB. The UE may transmit both in the same subframe using either TDM or FDM. Or the UE may transmit each in different subframes from each other. The eNB uses some combination of the precoded SRS and the unprecoded SRS in scheduling resources for the UE. The eNB may also provide instruction to the UE for PUSCH precoding for data transmission. The eNB may signal the UE to use the same precoding as for the precoded SRS. The eNB may instead signal the UE to use different precoding by including the precoding information or delta information between the precoding used for the precoded SRS and the selected precoding for the PUSCH data.
Public/Granted literature
- US10469224B2 Joint transmission of precoded and unprecoded sounding reference signals in uplink Public/Granted day:2019-11-05
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