Embodiments described herein relate generally to a communication between a user equipment (“UE”) and a plurality of evolved Node Bs (“eNBs”). A UE may be adapted to operate in a dual connected mode on respective wireless cells provided by first and second eNBs. The UE may be adapted to estimate respective power headroom (“PHR”) values associated with simultaneous operation on the first and second wireless cells. The UE may cause the first and second PHR estimates to be transmitted to both the first and second eNBs. The first and second eNBs may use these estimates to compute respective uplink transmission powers for the UE. Other embodiments may be described and/or claimed.

Embodiments described herein relate generally to a communication between a user equipment (“UE”) and a plurality of evolved Node Bs (“eNBs”). A UE may be adapted to operate in a dual connected mode on respective wireless cells provided by first and second eNBs. The UE may be adapted to estimate respective power headroom (“PHR”) values associated with simultaneous operation on the first and second wireless cells. The UE may cause the first and second PHR estimates to be transmitted to both the first and second eNBs. The first and second eNBs may use these estimates to compute respective uplink transmission powers for the UE. Other embodiments may be described and/or claimed.

Embodiments of a User Equipment (UE) to support dual-connectivity with a Master Evolved Node-B (MeNB) and a Secondary eNB (SeNB) are disclosed herein. The UE may receive downlink traffic packets from the MeNB and from the SeNB as part of a split data radio bearer (DRB). At least a portion of control functionality for the split DRB may be performed at each of the MeNB and the SeNB. The UE may receive an uplink eNB indicator for an uplink eNB to which the UE is to transmit uplink traffic packets as part of the split DRB. Based at least partly on the uplink eNB indicator, the UE may transmit uplink traffic packets to the uplink eNB as part of the split DRB. The uplink eNB may be selected from a group that includes the MeNB and the SeNB.

Modulating and optimizing operation parameters such as power usage of wireless networks include determining a baseline reference level for a network demand at a base station in a network during a first time interval. The transmission power of the base station corresponding to the baseline reference level is determined, and the network demand at the base station in the network is forecasted during a second time interval. A difference between the projected network demand and the baseline reference level at the second time is determined. The transmission power of the base station is adjusted by a predetermined increment during the second time interval based at least on the difference.

Embodiments of the present invention provide a method for transmission control and a device. The method includes: sending first information, where the first information is used to notify a master node and/or secondary node of a terminal of a power control parameter used by the terminal in an uplink power sharing mechanism for dual connectivity.

Embodiments of the present invention provide a method for transmission control and a device. The method includes: sending first information, where the first information is used to notify a master node and/or secondary node of a terminal of a power control parameter used by the terminal in an uplink power sharing mechanism for dual connectivity.

Certain aspects of the present disclosure relate to techniques for controlling transmission power and prioritizing transmission carriers. A method of power distribution for different physical layer channels over one or more carriers in case of power limited user equipment (UE) is proposed. Operation modes of the UE with single and multiple power amplifiers/antennas can be supported.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). The present application discloses a power headroom report (PHR) method and apparatus. A user equipment (UE) determines a PHR reporting manner according to the structure of an uplink subframe in an active serving cell, calculates PHR according to the reporting manner, and sends the PHR to a base station. According to the present disclosure, a UE proactively determines the PHR reporting manner, calculates PHR and report the PHR, thus implements PHR reporting process at the UE.

Apparatuses, methods, and systems are disclosed for reporting power headroom (“PH”) information. One apparatus is configured with a first serving cell for PUSCH transmissions having a first SCS and a second serving cell for PUSCH transmissions having a second SCS larger than the first SCS. The apparatus has an uplink resource allocation for a first slot on the first serving cell, where the first slot overlaps in time with multiple second slots on the second serving cell, and has an uplink resource allocation for at least one of the multiple second slots that are overlapped by the first slot. A processor calculates PH information for the second serving cell for a first PUSCH scheduled on a first one of the multiple second slots and a transceiver transmits the PH information in an uplink transmission on the first slot.

Apparatuses, methods, and systems are disclosed for reporting power headroom (“PH”) information. One apparatus is configured with a first serving cell for PUSCH transmissions having a first SCS and a second serving cell for PUSCH transmissions having a second SCS larger than the first SCS. The apparatus has an uplink resource allocation for a first slot on the first serving cell, where the first slot overlaps in time with multiple second slots on the second serving cell, and has an uplink resource allocation for at least one of the multiple second slots that are overlapped by the first slot. A processor calculates PH information for the second serving cell for a first PUSCH scheduled on a first one of the multiple second slots and a transceiver transmits the PH information in an uplink transmission on the first slot.