Title:
RANDOM ACCESS PROCEDURE FOR NR BASED SATELLITE COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2020/146506
Kind Code:
A3
Abstract:
Methods and apparatus are described for carrying out timing adjustments in a wireless communications network. The approach includes a user equipment (UE) that includes processor circuitry and a radio front end circuitry. The processor circuitry is configured to obtain a timing advance value for the wireless communication with a satellite base station, and to determine a transmission time for transmission of a random access channel (RACH) preamble based on the timing advance value. The radio front end circuitry transmits the random access preamble at the transmission time. Finally, the processor circuitry is further configured to receive a response to the transmitted random access preamble.
Inventors:
NARASIMHA MURALI (US)
HEO YOUN HYOUNG (US)
ZHANG YUJIAN (US)
HEO YOUN HYOUNG (US)
ZHANG YUJIAN (US)
Application Number:
PCT/US2020/012748
Publication Date:
September 03, 2020
Filing Date:
January 08, 2020
Export Citation:
Assignee:
APPLE INC (US)
International Classes:
H04B7/185; H04W56/00
Foreign References:
| US20150181544A1 | 2015-06-25 |
Other References:
ZTE ET AL: "Discussion on the NR impacts on random access for NTN", vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 15 April 2018 (2018-04-15), XP051426524, Retrieved from the Internet
HUAWEI ET AL: "Discussion on Timing Advance for NTN", vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 11 November 2018 (2018-11-11), XP051555731, Retrieved from the Internet [retrieved on 20181111]
HUAWEI ET AL: "Discussion on Timing Advance for NTN", vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 11 November 2018 (2018-11-11), XP051555731, Retrieved from the Internet
Attorney, Agent or Firm:
HELVEY, Jeffrey T. et al. (US)
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