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Enhanced node B, user equipment and methods for discontinuous reception in inter-eNB carrier aggregation

  • US 10,405,371 B2
  • Filed: 05/05/2017
  • Issued: 09/03/2019
  • Est. Priority Date: 08/03/2012
  • Status: Active Grant
First Claim
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1. An apparatus of user equipment (UE) configurable for connectivity with multiple cell groups entities, the apparatus comprising:

  • memory; and

    processing circuitry, configured to;

    decode radio-resource control (RRC) signaling from a first cell group associated with a first enhanced node B (eNB), the RRC signaling to configure the UE with a second cell group, the second cell group associated with a secondary eNB, the UE configured to utilize scheduled radio resources of both the first and second cell groups;

    decode a first medium-access control (MAC) configuration element received for the first cell group and a second MAC configuration element for the second cell group, the MAC configuration elements to configure the UE for independent discontinuous reception (DRX) operations and independent buffer status reporting operations for each cell group, wherein the first MAC configuration element includes DRX configuration information and buffer status report (BSR) configuration information for the first cell group, and wherein the second MAC configuration element includes DRX configuration information and BSR configuration information for the second cell group;

    perform buffer status reporting and DRX operations for the second cell group independently of buffer status reporting and DRX operations for the first cell group, wherein an independent retxBSR-Timer and periodicBSR-Timer are maintained for each of cell group;

    configure first uplink data for transmission to the first eNB in accordance with scheduling information received for the first cell group; and

    configure second uplink data for transmission to the second eNB in accordance with scheduling information received for the second cell group.

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