Random access in dynamic and shared spectrums
First Claim
1. A method for a wireless transmit/receive unit (WTRU) to perform a random access procedure, the method comprising:
- determining a transmission power associated with a first random access channel (RACH) attempt at sending a RACH preamble comprising a cyclic prefix (CP) and a sequence;
determining a number of RACH repetitions per preamble attempt; and
sending, as part of the first RACH attempt, the RACH preamble for the determined number of RACH repetitions using the determined transmission power associated with the first RACH attempt.
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Accused Products
Abstract
Systems and methods for using a communication system in a spectrum are provided. For example, a random access or RACH procedure may be performed where the random access or RACH procedure may be configured to reduce secondary interference and/or to be used in a pixel-based environment. The random access or RACH procedure may include selecting a RACH preamble; sending a RACH preamble and/or format information; determining a transmission power of the RACH preamble and/or the format information; determining a random access radio network temporary identifier (RA-RNTI) and preamble ID associated with the RACH preamble; and/or selecting a physical RACH (PRACH).
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Citations
18 Claims
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1. A method for a wireless transmit/receive unit (WTRU) to perform a random access procedure, the method comprising:
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determining a transmission power associated with a first random access channel (RACH) attempt at sending a RACH preamble comprising a cyclic prefix (CP) and a sequence; determining a number of RACH repetitions per preamble attempt; and sending, as part of the first RACH attempt, the RACH preamble for the determined number of RACH repetitions using the determined transmission power associated with the first RACH attempt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless transmit/receive unit (WTRU) configured to perform a random access procedure, comprising:
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a processor; and a memory in communication with the processor and storing instructions that, when executed by the processor, cause the WTRU to; determine a transmission power associated with a first random access channel (RACH) attempt at sending a RACH preamble comprising a cyclic prefix (CP) and a sequence; determine a number of RACH repetitions per preamble attempt; and send, as part of the first RACH attempt, the RACH preamble for the determined number of RACH repetitions using the determined transmission power associated with the first RACH attempt. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification