Controlling random-access channel (RACH) retransmissions for wireless communication
AssigneeQUALCOMM Incorporated
InventorsMuhammad Nazmul Islam, Tao Luo, Junyi Li
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Abstract
Various aspects of the disclosure provide for methods of communication. One method, at a base station, involves determining a maximum number of consecutive MSG1 retransmissions that a user equipment (UE) is permitted to perform, and transmitting the maximum number of consecutive MSG1 retransmissions to the UE. Another method involves receiving a maximum number of consecutive MSG1 retransmissions to be performed, and transmitting consecutive MSG1 retransmission signals for the maximum number of times.
Claims22
A method of communication at a base station, comprising:
- determining a maximum number of consecutive MSG1 retransmissions that a user equipment (UE) is permitted to perform;
- transmitting information indicating the maximum number of consecutive MSG1 retransmissions to the UE;
- receiving, before a random access response (RAR) window, a consecutive MSG1 retransmission from the UE;
- and
- repeating the receiving, after the RAR window, one or more subsequent consecutive MSG1 retransmissions from the UE until the maximum number of consecutive MSG1 retransmissions has been received, wherein each subsequent consecutive MSG1 retransmission is received after a corresponding RAR window.
A method of communication at a user equipment (UE), comprising:
- receiving information indicating a maximum number of consecutive MSG1 retransmissions to be performed;
- and
- transmitting consecutive MSG1 retransmission signals for the maximum number of times,
- wherein the transmitting consecutive MSG1 retransmission signals comprises:
- transmitting, before a random access response (RAR) window, a consecutive MSG1 retransmission, and
- repeating the transmitting, after the RAR window, one or more subsequent consecutive MSG1 retransmissions until the maximum number of consecutive MSG1 retransmissions has been transmitted, wherein each subsequent consecutive MSG1 retransmission is transmitted after a corresponding RAR window.
An apparatus for communication, comprising:
- a memory device;
- and
- a processing circuit coupled to the memory device and configured to:
- determine a maximum number of consecutive MSG1 retransmissions that a user equipment (UE) is permitted to perform,
- transmit information indicating the maximum number of consecutive MSG1 retransmissions to the UE,
- receive, before a random access response (RAR) window, a consecutive MSG1 retransmission from the UE, and
- repeatedly receive, after the RAR window, one or more subsequent consecutive MSG1 retransmissions from the UE until the maximum number of consecutive MSG1 retransmissions has been received, wherein each subsequent consecutive MSG1 retransmission is received after a corresponding RAR window.
An apparatus for communication, comprising:
- a memory device;
- and
- a processing circuit coupled to the memory device and configured to:
- receive information indicating a maximum number of consecutive MSG1 retransmissions to be performed,
- transmit consecutive MSG1 retransmission signals for the maximum number of times, wherein the processing circuit configured to transmit is further configured to:
- transmit, before a random access response (RAR) window, a consecutive MSG1 retransmission, and
- repeatedly transmit, after the RAR window, one or more subsequent consecutive MSG1 retransmissions until the maximum number of consecutive MSG1 retransmissions has been transmitted, wherein each subsequent consecutive MSG1 retransmission is transmitted after a corresponding RAR window.
Dependencies are inferred from the claim text.