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Methods and apparatus for enabling further L1 enhancements in LTE heterogeneous networks

  • US 10,455,612 B2
  • Filed: 03/13/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 09/28/2012
  • Status: Active Grant
First Claim
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1. A network element in a first cell in a wireless telecommunication network, the network element comprising:

  • at least one storage device; and

    a processor configured to execute instructions stored on the at least one storage device such that when executed, the network element;

    provides uplink and downlink grants in the first cell, wherein the first cell is a low-power cell within the coverage area of a second cell that is a high-power cell, and wherein the first cell acts as a secondary cell and the second cell acts as a primary cell in a carrier aggregation (CA) mode;

    schedules the uplink and downlink grants based on information received from the second cell via an X2 interface between the first and second cells, wherein at least one uplink control signal is received by one of only the first cell or both the first cell and the second cell; and

    assigns a first cell radio network temporary identifier (C-RNTI) to a user equipment (UE), wherein the first C-RNTI is different from a second C-RNTI that the second cell assigns to the UE, and wherein the network element indicates to the UE to use a higher modulation order in the first cell than in the second cell.

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