Beam sweep based random access msg 1 and msg 2
AssigneeQUALCOMM Incorporated
InventorsQian Zhang, Yan Zhou, Tao Luo, Mostafa Khoshnevisan, Junyi Li, Tianyang Bai, Kiran Venugopal
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Abstract
A method, a computer-readable medium, and an apparatus are provided for wireless communication including random access between a base station and a user equipment (UE). The UE transmits at least two first random access messages (Msg 1) to multiple transmission reception points (TRPs) of at least one cell using different resources for the multiple TRPs. The UE monitors for at least two second random access messages (Msg 2) from the multiple TRPs of the at least one cell using different resources for the multiple TRPs.
Claims30
A method of wireless communication at a user equipment (UE), comprising:
- transmitting at least two first random access messages (Msg 1) directed to different transmission reception points (TRPs) of multiple TRPs for at least one cell using different resources for the multiple TRPs, the different resources including one or more of different time resources or different frequency resources for the multiple TRPs;
- and
- monitoring, after transmitting the at least two first random access messages, for at least two second random access messages (Msg 2) from the multiple TRPs of the at least one cell based on the different time resources or the different frequency resources for the multiple TRPs.
An apparatus for wireless communication at a user equipment (UE), comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- transmit at least two first random access messages (Msg 1) directed to different transmission reception points (TRPs) of multiple TRPs for at least one cell using different resources for the multiple TRPs, the different resources including one or more of different time resources or different frequency resources for the multiple TRPs;
- and
- monitor, after transmission of the at least two first random access messages, for at least two second random access messages (Msg 2) from the multiple TRPs of the at least one cell based on the different time resources or the different frequency resources for the multiple TRPs.
A method of wireless communication at a base station, comprising:
- receiving, from a user equipment (UE), at least two first random access messages (Msg 1) directed to different transmission reception points (TRPs) of multiple TRPs for at least one cell based on different resources for the multiple TRPs, the different resources including one or more of different time resources or different frequency resources for the multiple TRPs;
- and
- transmitting, to the UE and after receiving the at least two first random access messages, at least two second random access messages (Msg 2) from the multiple TRPs of the at least one cell based on the different time resources or the different frequency resources for the multiple TRPs.
An apparatus for wireless communication at a base station, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive, from a user equipment (UE), at least two first random access messages (Msg 1) directed to different transmission reception points (TRPs) of multiple TRPs for of at least one cell based on different resources for the multiple TRPs, the different resources including one or more of different time resources or different frequency resources for the multiple TRPs;
- and
- transmit, to the UE and after reception of the at least two first random access messages, at least two second random access messages (Msg 2) from the multiple TRPs of the at least one cell based on the different time resources or the different frequency resources for the multiple TRPs.
Dependencies are inferred from the claim text.