Random access method and communications device
AssigneeVivo Mobile Communication Co., Ltd.
InventorLi Chen
Life of this patent
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Abstract
This disclosure provides a random access method and a communications device. The method includes: transmitting a message in a random access process by using a target beam in selectable beams, where the message in the random access process is an Msg1, an Msg2, an Msg3, or an Msg4.
Claims20
A random access method, comprising:
- transmitting a message in a random access process by using a target beam in selectable beams, wherein
- the message in the random access process is an Msg1, an Msg2, an Msg3, or an Msg4;
- wherein when the message is the Msg2, the selectable beams comprise at least one of a third beam, a fourth beam, a fifth beam, and a sixth beam;
- the third beam is a downlink beam that has an associative relationship with an uplink beam sending the Msg1;
- the fourth beam is a downlink beam that has a quasi co-location QCL relationship with a downlink beam whose quality of a received downlink reference signal is better than a first threshold;
- the fifth beam is a downlink beam that is the same as the downlink beam whose quality of the received downlink reference signal is better than the first threshold;
- and
- the sixth beam is a downlink beam configured in a dedicated radio resource control RRC message.
A communications device, comprising a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the processor is configured to execute the computer program to:
- transmit a message in a random access process by using a target beam in selectable beams, wherein
- the message in the random access process is an Msg1, an Msg2, an Msg3, or an Msg4;
- wherein when the message is the Msg2, the selectable beams comprise at least one of a third beam, a fourth beam, a fifth beam, and a sixth beam;
- the third beam is a downlink beam that has an associative relationship with an uplink beam sending the Msg1;
- the fourth beam is a downlink beam that has a quasi co-location QCL relationship with a downlink beam whose quality of a received downlink reference signal is better than a first threshold;
- the fifth beam is a downlink beam that is the same as the downlink beam whose quality of the received downlink reference signal is better than the first threshold;
- and
- the sixth beam is a downlink beam configured in a dedicated radio resource control RRC message.
A non-transitory computer-readable storage medium, storing a computer program, wherein when the computer program is executed by a processor, the following steps are implemented:
- transmitting a message in a random access process by using a target beam in selectable beams, wherein
- the message in the random access process is an Msg1, an Msg2, an Msg3, or an Msg4;
- wherein when the message is the Msg2, the selectable beams comprise at least one of a third beam, a fourth beam, a fifth beam, and a sixth beam;
- the third beam is a downlink beam that has an associative relationship with an uplink beam sending the Msg1;
- the fourth beam is a downlink beam that has a quasi co-location QCL relationship with a downlink beam whose quality of a received downlink reference signal is better than a first threshold;
- the fifth beam is a downlink beam that is the same as the downlink beam whose quality of the received downlink reference signal is better than the first threshold;
- and
- the sixth beam is a downlink beam configured in a dedicated radio resource control RRC message.
Dependencies are inferred from the claim text.