RANDOM ACCESS CHANNEL (RACH) TIMING ADJUSTMENT
First Claim
1. A method for wireless communication, comprising:
- transmitting a first message comprising a random access channel (RACH) preamble;
receiving a second message comprising random access response (RAR) in response to the RACH preamble;
transmitting a third message in response to the RAR;
receiving a fourth message in response to the third message, wherein the fourth message comprises at least one timing advance (TA) parameter; and
communicating one or more messages based on the TA parameter.
1 Assignment
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Accused Products
Abstract
Certain aspects of the present disclosure provide techniques for random access channel (RACH) communication. For example, certain aspects provide a method for wireless communication by a user-equipment (UE). The method generally includes transmitting a first message comprising a RACH preamble, receiving a second message comprising random access response (RAR) in response to the RACH preamble, transmitting a third message in response to the RAR, receiving a fourth message (MSG4) comprising a contention resolution message in response to the third message. In certain aspects, the fourth message may include a timing advance (TA) parameter which may be used to communicate one or more messages.
51 Citations
30 Claims
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1. A method for wireless communication, comprising:
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transmitting a first message comprising a random access channel (RACH) preamble; receiving a second message comprising random access response (RAR) in response to the RACH preamble; transmitting a third message in response to the RAR; receiving a fourth message in response to the third message, wherein the fourth message comprises at least one timing advance (TA) parameter; and communicating one or more messages based on the TA parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for wireless communication, comprising:
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receiving a first message comprising a random access channel (RACH) preamble; transmitting a second message comprising random access response (RAR) in response to the RACH preamble; receiving a third message in response to the RAR; transmitting a fourth message in response to the third message, wherein the fourth message comprises at least one timing advance (TA) parameter; and communicating one or more messages based on the TA parameter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for wireless communication, comprising:
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transmitting a first message comprising a random access channel (RACH) preamble; receiving a second message comprising random access response (RAR) in response to the RACH preamble; transmitting a third message in response to the RAR; receiving a fourth message in response to the third message, wherein the fourth message comprises an index associated with a beam; and communicating one or more messages based on the index. - View Dependent Claims (24, 25, 26)
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27. A method for wireless communication, comprising:
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receiving a first message comprising a random access channel (RACH) preamble; transmitting a second message comprising random access response (RAR) in response to the RACH preamble; receiving a third message in response to the RAR; transmitting a fourth message in response to the third message, wherein the fourth message comprises an index associated with a beam; and communicating one or more messages based on the index. - View Dependent Claims (28, 29, 30)
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Specification