Bearer split ratios for dual connectivity systems

摘要

Technology for communicating data to a user equipment (UE) is disclosed. Effective data rates may be identified, at a master evolved node B (MeNB), for the UE with respect to the MeNB and a secondary evolved node B (SeNB). A downlink split ratio for bearers of the MeNB and the SeNB to the UE may be determined based in part on the effective data rates for the UE. A first portion of data may be sent from the MeNB to the UE according to the downlink split ratio. A remaining portion of data may be sent from the MeNB to the UE via the SeNB according to the downlink split ratio, wherein the UE supports dual connectivity with the MeNB and the SeNB.

主权项

1. A master evolved node B (MeNB) operable to communicate data to a user equipment (UE), the MeNB comprising:
one or more processors; and a memory device including instructions that, when executed by the one or more processors, cause the one or more processors to; identify effective data rates for the UE, the effective data rates including an effective data rate for an MeNB link between the UE and the MeNB and an effective data rate for a secondary evolved node B (SeNB) link between the UE and the SeNB; determine a downlink split ratio for bearers of the MeNB and the SeNB to the UE based in part on the effective data rates for the UE; send a first portion of data from the MeNB to the UE according to the downlink split ratio; send a remaining portion of data from the MeNB to the UE via the SeNB according to the downlink split ratio, wherein the UE supports dual connectivity with the MeNB and the SeNB; determine that the effective data rate for the MeNB link (Rm) plus one of the effective data rate for the SeNB link (Rs) or a data capacity of an X2 link between the MeNB and the SeNB (Rx) is less than an internet protocol (IP) data rate to the packet data convergence protocol (PDCP) layer in the MeNB (Ri); and determine the downlink split ratio to include the effective data rate for the MeNB link (Rm), wherein data is transmitted from the MeNB to the UE over the MeNB link according to the downlink split ratio.