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US 11,641,674 B2Granted
Random access method and device, user equipment and computer-readable storage medium
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorXiaowei Jiang
Life of this patent
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Abstract
A random access method includes: determining whether a currently selected beam for transmitting a preamble is identical to one of at least one recorded beam, clearing all previously recorded beams, recording the currently selected beam, and transmitting the preamble at a boosted pilot transmission power when it is determined that a value of a pilot power boost counter does not reach a maximum value.
Claims18
A random access method, comprising:
- initiating, by user equipment (UE), the random access;
- wherein initiating the random access is due to one of:
- initial access, uplink synchronization loss, or reconstruction;
- selecting, by the UE, a beam to transmit a preamble;
- determining, by the UE, whether a currently selected beam for transmitting the preamble is identical to multiple recorded beams previously selected for transmitting the preamble;
- determining, by the UE, that the currently selected beam is identical to one of the multiple recorded beams;
- clearing all the multiple recorded beams, and recording the currently selected beam;
- determining, by the UE, a value of a pilot power boost counter not to reach a maximum value;
- transmitting, by the UE, the preamble at a boosted pilot transmit power;
- and
- selecting, by the UE, another beam to transmit the preamble in response to failure of receiving feedback for the preamble sent by a base station, or failure of contention resolution.
8 more elements
User equipment, comprising:
- a processor;
- and
- memory for storing instructions executable by the processor;
- wherein the processor is configured to:
- initiate the random access;
- wherein initiating the random access is due to one of:
- initial access, uplink synchronization loss, or reconstruction;
- select a beam to transmit a preamble;
- determine whether a currently selected beam for transmitting the preamble is identical to multiple recorded beams previously selected for transmitting the preamble;
- determine that the currently selected beam is identical to one of the multiple recorded beams;
- clear all the multiple recorded beams, and record the currently selected beam;
- determine a value of a pilot power boost counter not to reach a maximum value;
- transmit the preamble at a boosted pilot transmit power;
- and
- select another beam to transmit the preamble in response to failure of receiving feedback for the preamble sent by a base station, or failure of contention resolution.
12 more elements
A non-transitory computer-readable storage medium, which stores a computer program;
- wherein the computer program, when being executed by a processor, causes the processor to:
- initiate the random access;
- wherein initiating the random access is due to one of:
- initial access, uplink synchronization loss, or reconstruction;
- select a beam to transmit a preamble;
- determine whether a currently selected beam for transmitting the preamble is identical to multiple recorded beams previously selected for transmitting the preamble;
- determine that the currently selected beam is identical to one of the multiple recorded beams;
- clear all the multiple recorded beams, and record the currently selected beam;
- determine a value of a pilot power boost counter not to reach a maximum value;
- transmit the preamble at a boosted pilot transmit power;
- and
- select another beam to transmit the preamble in response to failure of receiving feedback for the preamble sent by a base station, or failure of contention resolution.
9 more elements
Dependencies are inferred from the claim text.