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METHOD AND APPARATUS FOR IMPROVING UPLINK PERFORMANCE AT A USER EQUIPMENT

  • US 20150063313A1
  • Filed: 05/23/2014
  • Published: 03/05/2015
  • Est. Priority Date: 08/30/2013
  • Status: Active Grant
First Claim
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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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