METHOD AND APPARATUS FOR IMPROVING UPLINK PERFORMANCE AT A USER EQUIPMENT
First Claim
1. A method for improving uplink (UL) performance at a user equipment (UE), comprising:
- identifying a random access channel (RACH) preamble failure when the UE is communicating with a current serving cell of the UE;
increasing transmission power of successive RACH preambles based at least on the identifying;
comparing signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE; and
determining that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures.
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Abstract
The present disclosure presents a method and apparatus for improving uplink (UL) performance at a user equipment (UE). For example, the method may include identifying a random access channel (RACH) preamble failure when the UE is communicating with a current serving cell of the UE, increasing transmission power of successive RACH preambles based at least on the identifying, comparing signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE, and determining that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures. As such, improved performance uplink (UL) performance at a UE may be achieved.
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Citations
30 Claims
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1. A method for improving uplink (UL) performance at a user equipment (UE), comprising:
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identifying a random access channel (RACH) preamble failure when the UE is communicating with a current serving cell of the UE; increasing transmission power of successive RACH preambles based at least on the identifying; comparing signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE; and determining that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for improving uplink (UL) performance at a user equipment (UE), comprising:
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means for identifying a random access channel (RACH) preamble failure when the UE is communicating with a current serving cell of the UE; means for increasing transmission power of successive RACH preambles based at least on the identifying; means for comparing signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE; and means for determining that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A computer program product for improving uplink (UL) performance at a user equipment (UE), comprising:
a non-transitory computer-readable medium comprising code for; identifying a random access channel (RACH) preamble failure when the UE is communicating with a current serving cell of the UE; increasing transmission power of successive RACH preambles based at least on the identifying; comparing signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE; and determining that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An apparatus for improving uplink (UL) performance at a user equipment (UE), comprising:
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a random access channel (RACH) failure identifying component to identify a RACH preamble failure when the UE is communicating with a current serving cell of the UE; a transmission power component to increase transmission power of successive RACH preambles based at least on the identifying; a downlink signal comparing component to compare signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE; and a RACH preamble failure determining component to determine that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification