US Patent:
20230058265, Feb 23, 2023
Inventors:
- Cupertino CA, US
Chunxuan Ye - Beijing, CN
Dawei Zhang - Cupertino CA, US
Fangli Xu - Cupertino CA, US
Haijing Hu - Cupertino CA, US
Haitong Sun - Cupertino, US
Hong He - Cupertino CA, US
Jie Cui - Cupertino CA, US
Oghenekome Oteri - Cupertino CA, US
Shu Guo - Cupertino CA, US
Wei Zeng - Cupertino CA, US
Yang Weidong - Cupertino CA, US
Yang Tang - Cupertino CA, US
Yuchul Kim - Cupertino CA, US
Yuqin Chen - Cupertino CA, US
Yushu Zhang - Beijing, CN
International Classification:
H04L 5/00
H04W 72/04
Abstract:
Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A serving base station may configure a coverage-limited UE with parameters for the UE to operate in a coverage enhancement mode through RRC signaling, DCI, or RAR grant. The UE may use the configuration parameters to determine whether to enter into the coverage enhancement mode when connecting and communicating with the serving base station. The configuration parameters may configure the UE to exploit both time diversity and frequency diversity to extend and enhance coverage when receiving the PDSCH and PDCCH channels, when transmitting the PUSCH and PUCCH channel, and when transmitting PUSCH Msg3 during random access. Advantageously, the base station may flexibly and dynamically configure the UE with coverage enhancement parameters to extend the coverage of the UE using time diversity and frequency diversity gains as the UE moves around.
