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US 2016/0113035 A1Published application
Method and apparatus for a smart random access procedure in a telecommunication network
AssigneeQUALCOMM Incorporated
InventorsArvindhan Kumar, Luna Sapna D'Souza, Chetan Gopalakrishnan Chakravarthy, Guruvayurappan Vasudevan, Vaishakh Rao
Life of this patent
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Abstract
Aspects of the present disclosure provide for a method and an apparatus for wireless communications using an intelligent Random Access Channel (RACH) procedure that may increase the probability of obtaining an available E-DCH resource quickly in a Universal Mobile Telecommunication System.
Claims21
A method of operating an apparatus in a wireless communications network, comprising:
- creating a database comprising a plurality of resource indexes and corresponding preamble signature sequences and probabilities of being usable, the resource indexes initially marked as usable and corresponding to a plurality of uplink transport channel resources;
- selecting a first index of the resource indexes;
- selecting a first preamble signature sequence of the preamble signature sequences corresponding to the first index;
- initiating a random access channel (RACH) procedure by transmitting a preamble utilizing the first preamble signature sequence;
- marking the first index with a lower probability of being usable for a subsequent RACH procedure in connection with receiving a negative acknowledgement for the preamble;
- selecting a second index of the resource indexes having a probability higher than that of the first index;
- selecting a second preamble signature sequence of the preamble signature sequences corresponding to the second index;
- and
- transmitting a preamble utilizing the second preamble signature sequence.
6 more elements
An apparatus for a wireless communications network, comprising:
- at least one processor;
- a communication interface coupled to the at least one processor;
- and
- a memory coupled to the at least one processor,
- wherein the at least one processor is configured to:
- create a database comprising a plurality of resource indexes and corresponding preamble signature sequences and probabilities of being usable, the resource indexes initially marked as usable and corresponding to a plurality of uplink transport channel resources;
- select a first index of the resource indexes;
- select a first preamble signature sequence of the preamble signature sequences corresponding to the first index;
- initiate a random access channel (RACH) procedure by transmitting a preamble utilizing the first preamble signature sequence;
- mark the first index with a lower probability of being usable for a subsequent RACH procedure in connection with receiving a negative acknowledgement for the preamble;
- select a second index of the resource indexes having a probability higher than that of the first index. index;
- select a second preamble signature sequence of the preamble signature sequences corresponding to the second index;
- and
- transmit a preamble utilizing the second preamble signature sequence.
11 more elements
A non-transitory computer-readable storage medium comprising:
- code for causing a user equipment (UE) to:
- create a database comprising a plurality of resource indexes and corresponding preamble signature sequences and probabilities of being usable, the resource indexes initially marked as usable and corresponding to a plurality of uplink transport channel resources;
- select a first index of the resource indexes;
- select a first preamble signature sequence of the preamble signature sequences corresponding to the first index;
- initiate a random access channel (RACH) procedure by transmitting a preamble utilizing the first preamble signature sequence;
- mark the first index with a lower probability of being usable for a subsequent RACH procedure in connection with receiving a negative acknowledgement for the preamble;
- select a second index of the resource indexes having a probability higher than that of the first index;
- select a second preamble signature sequence of the preamble signature sequences corresponding to the second index;
- and
- transmit a preamble utilizing the second preamble signature sequence.
7 more elements
Dependencies are inferred from the claim text.