Qualcomm Incorporated

Vinesh Kisan Kaviskar

Muhammad Nazmul Islam

Parthasarathy Krishnamoorthy

Venkata Siva Prasad Rao Gude

Ambarish Tripathi

Daniel Alejandro Olmos

Aspects relate to random access channel procedures. In some examples, if a user equipment (UE) has not successfully received a random access channel (RACH) downlink message prior to the end of a random access window for a first RACH attempt, the UE may elect to proceed with a second RACH attempt. For example, the UE may determine whether there are any remaining downlink symbols available during the random access window to receive the RACH downlink message. If not, the UE may retransmit a physical RACH (PRACH) preamble.

Random access channel procedures

Certain aspects of the present disclosure relate to methods and apparatus for reducing resource contention between two or more RATs supported by a User Equipment (UE). The UE may determine a first level of contention between Radio Frequency (RF) resources to be used by two or more Radio Access Technologies (RATs) supported by the UE over a given period of time for performing at least one type of receive activity, based at least on assigned Discontinuous Reception (DRX) cycles for the RATs. The UE may decide to initiate an update of a DRX cycle for at least one of the RATs to reduce the contention, at least if the determined first level is greater than a given threshold level of the contention over the given period of time.

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San Diego, CA, United States of America

Vinesh Kisan Kaviskar