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US 10,568,007 B2Granted
Handover random access
AssigneeComcast Cable Communications, LLC
InventorsKyungmin Park, Esmael Hejazi Dinan, Hyoungsuk Jeon
Life of this patent
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Abstract
Systems, apparatuses, and methods are described for wireless communications. Random access procedures may include various types of procedures, such as 4-step or 2-step random access procedures. One or more indicators may be included in one or more messages for a handover to indicate a type of a random access procedure.
Claims20
A method comprising:
- transmitting, by a wireless device and to a first base station associated with a first cell, a first message comprising a measurement report based on one or more second cells;
- receiving, by the wireless device and from the first base station, a second message comprising a command for a handover from the first cell to a second cell of the one or more second cells, wherein the second message comprises one or more parameters indicating a type of a random access procedure for the handover, and wherein the type of the random access procedure comprises a two-step random access procedure or a four-step random access procedure;
- and
- transmitting, by the wireless device and to a second base station associated with the second cell, a random access preamble employing the type of the random access procedure indicated in the second message.
1 more element
A method comprising:
- receiving, by a first base station associated with a first cell and from a wireless device, a first message comprising a measurement report based on one or more second cells;
- determining, based on the measurement report, to handover the wireless device from the first cell to a second cell of the one or more second cells;
- transmitting, by the first base station and to a third device, a second message comprising an indication for the handover;
- receiving, by the first base station and from the third device, a third message indicating a type of a random access procedure for the handover, wherein the type of the random access procedure comprises a two-step random access procedure or a four-step random access procedure;
- and
- transmitting, by the first base station and to the wireless device, a fourth message comprising:
- one or more parameters indicating the type of the random access procedure for the handover;
- and
- a command to proceed with the handover.
6 more elements
A method comprising:
- receiving, by a network device and from a first base station associated with a first cell, a first message comprising an indication for a handover of a wireless device from the first cell to a second cell of one or more second cells;
- determining, by the network device and based on the first message, to proceed with the handover;
- and
- transmitting, by the network device and to the first base station, a second message comprising:
- an acknowledgement for the handover;
- and
- one or more parameters indicating a type of a random access procedure for the handover, wherein the type of the random access procedure comprises a two-step random access procedure or a four-step random access procedure.
4 more elements
Dependencies are inferred from the claim text.