RESPONSE ENHANCEMENTS FOR MULTIPLE RANDOM ACCESS PROCEDURES

Abstract: methods, systems, and devices for wireless communications are described. a wireless communications system may support techniques for random access response (rar) enhancements for multiple random access channel (rach) procedures. in some cases, a user equipment (ue) may receive multiple physical downlink control channel (pdcch) orders triggering respective rach procedures, each pdcch order indicating a preamble identifier associated with the respective rach procedure. in some cases, the preamble identifiers may be the same or different. the ue may transmit a random access preamble corresponding to a preamble identifier indicated in a pdcch order and may receive a random access response associated with a respective rach procedure based at least in part on an indication included in the random access response. in some cases, the indication may be associated with a preamble identifier indication. in some other cases, the indication may be associated with a timing advance group.

Inventor(s): Shaozhen Guo, Mostafa Khoshnevisan, Peter Gaal, Jing Sun, Xiaoxia Zhang, Tao Luo, Yan Zhou, Fang Yuan

CPC Classification: H04W74/0833 (Random access procedures, e.g. with 4-step access)

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