Abstract: Systems, methods, apparatuses, and computer program products for configuring a user equipment to operate in carrier aggregation in a serving cell with a primary cell and one or more secondary cell are provided. For example, a method can include receiving, from a primary cell, a carrier aggregation configuration of a secondary cell with uplink. The configuration indicates that downlink is deactivated for the secondary cell. The carrier aggregation configuration is applicable to carrier aggregation of the primary cell and the secondary cell. The method also includes communicating with the secondary cell based on the configuration of the secondary cell.

Abstract: Systems, methods, apparatuses, and computer program products for uplink (UL) sounding reference signal (SRS) resource configuration may be provided. UL SRS resource configuration and related transmission procedures for intra-slot and inter-slot time bundling of one or more resources may be provided. In this regard, transmission bandwidth and/or repetition factors may be adapted for SRS occasions. The adaptation may be performed across an SRS bandwidth, and on an intra-slot or inter-slot basis.

Abstract: A radio access network element includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code configured to, with the at least one processor, cause the radio access network element to: generate a carrier aggregation configuration for a user equipment based on capability information from the user equipment, the capability information including at least supported maximum channel bandwidth information and supported minimum channel bandwidth information for each band within a band combination; and send the carrier aggregation configuration to the user equipment to configure the user equipment for communication with the radio access network element.

Abstract: Various techniques are provided for a method including receiving, at a network device from a user equipment (UE), an indication of a UE capability to support a per-band maximum power for a radio band combination (BC) used by the UE, determining whether the UE supports per-band maximum power for the radio BC based on the indication of the UE capability, and in response to determining the UE supports per-band maximum power for the radio BC, determining a total UE transmission power based on a sum of a maximum power of each band in the radio BC.

Abstract: A terminal includes a transmission unit configured to transmit, to a base station, information indicating whether or not transmission diversity is supported, a reception unit configured to receive, from the base station, information indicating a transmission diversity scheme in a case where transmission diversity is supported, and a control unit configured to switch to a transmission diversity scheme based on the information indicating the transmission diversity scheme, wherein the transmission unit is configured to perform transmission by applying the transmission diversity scheme to which the switch was made.

Abstract: Systems, methods, apparatuses, and computer program products for reporting of achievable power per component carrier with multiple power sources and configuration based on such reporting are provided. For example, a method can include receiving a request to report user equipment band combination capabilities. The method can also include reporting a capability of a user equipment to a network. The capability can include indication of one or more component carrier groups per band combination or per band. The one or more component carrier groups can contain indication of one or more power sources for the component carrier group.

Abstract: A terminal includes a receiving unit configured to receive, from a base station, information for indicating one or a plurality of values indicating requirements related to spectrum emission in a frequency band and information for requesting a report of a terminal capability, a control unit configured to support all values indicating the requirements related to the spectrum emission, in a case where the report does not include information indicating whether an operation of changed MPR (Maximum Power Reduction) in the frequency band is supported, and a transmitting unit configured to transmit the report to the base station.

Abstract: A terminal is disclosed that includes a processor that includes, in capability information, a separation class indicating a frequency separation between a lower edge of a component carrier with a lowest frequency for supported intra-band non-contiguous carrier aggregation and an upper edge of a component carrier with a highest frequency for the supported intra-band non-contiguous carrier aggregation. The terminal further includes a transmitter that transmits the capability information to a base station, where the separation class is indicated by an index to identify a class of the frequency separation. In other aspects, a transmission method and a radio communication system are also disclosed.

Abstract: Provided is a power control technique for a user equipment that supports high transmission power. An aspect of the invention relates to user equipment that supports a first power class in a certain frequency band, the user equipment including a transceiver that transmits radio signals to and receives radio signals from a base station; and a transmission power controller that controls transmission power to the base station, wherein, upon accessing the base station in the frequency band provided with, as a default power class, a second power class that is lower than the first power class, the transmission power controller controls the transmission power in accordance with a regulation of the default power class, and the transmission power controller controls the transmission power so that the transmission power becomes less than or equal to maximum output power of the default power class.

Abstract: A terminal includes a transmission unit configured to transmit, to a base station, information indicating whether or not transmission diversity is supported, a reception unit configured to receive, from the base station, information indicating a transmission diversity scheme in a case where transmission diversity is supported, and a control unit configured to switch to a transmission diversity scheme based on the information indicating the transmission diversity scheme, wherein the transmission unit is configured to perform transmission by applying the transmission diversity scheme to which the switch was made.

Abstract: A terminal including a transmission unit configured to transmit capability information to a base station apparatus, wherein the transmission unit transmits, as the capability information, each power class supported for each transmission technology in a plurality of transmission technologies to the base station apparatus.

Abstract: A terminal includes a transmitter that transmits, to a base station apparatus, UE capability including information indicating a supported frequency band and a power class at least defining spherical coverage in the frequency band; and a receiver that receives, from the base station apparatus, information on power control; wherein the transmitter further transmits, to the base station apparatus, an uplink transmission signal to which transmit power control based on at least one of the information on power control or the power class is applied.

Abstract: A terminal including: a control unit configured to compare a power reduction total value that is reduced from a maximum transmission power value determined based on a power class and that does not include a power reduction value for adjusting the power class with a predetermined value, and to calculate a lower limit value of a maximum transmission power by setting the power reduction value for adjusting the power class as 0 dB when the power reduction total value is greater than the predetermined value; and a transmission unit configured to perform uplink transmission using a maximum transmission power value equal to or greater than the lower limit value.

Abstract: A terminal includes a control unit that measures, for a first component carrier and a second component carrier forming a carrier aggregation in a case where the carrier aggregation is to be executed, a difference between a timing at which a radio frame is received on the first component carrier and a timing at which a radio frame is received on the second component carrier; and a transmission unit that transmits information indicating the difference measured by the control unit.

Abstract: A terminal includes a control unit using, in DC using first and second RATs, a first power class (PC) if a duty cycle is not greater than a threshold, the duty cycle obtained by adding a value obtained by multiplying: a first RAT duty cycle; a value obtained by dividing a maximum transmit power allowed for a network of the first RAT by a maximum transmit power for the DC corresponding to the first PC; and a ratio indicating a degree of influence of the first RAT over the second RAT, to a value obtained by multiplying: a second RAT duty cycle; and a value obtained by dividing a maximum transmit power allowed for a network of the second RAT by a maximum transmit power for the DC corresponding to the first PC, and a transmission unit performing uplink transmission to which the first PC is applied.

Abstract: Disclosed is a second base station device communicating with a first base station device. The second base station device includes a receiver configured to receive, from the first base station device, information for limiting radio resource allocation; a controller configured to allocate a radio resource based on the received information for limiting radio resource allocation; and a transmitter configured to transmit information for limiting radio resource allocation to the first base station device. The information for limiting radio resource allocation includes information indicating at least one of a frequency domain and a time domain indicating a location of a radio resource.

Abstract: A user equipment in a radio communication system including the user equipment and a base station, the user equipment including: a transmission unit that transmits a first maximum bandwidth, which is a maximum bandwidth available to the user equipment for communication, to the base station; and a reception unit that receives, from the base station, a center frequency or frequencies on both ends of a band having a bandwidth, which is equal to or less than the first maximum bandwidth, within a band having a second maximum bandwidth that is a maximum bandwidth available to the base station for communication.

Abstract: A terminal is provided. The terminal includes a reception unit configured to receive band information of a first radio access technology (RAT) and a second RAT band from a base station apparatus; a control unit configured to determine a first parameter indicating a supported bandwidth combination set for a first RAT component of a band combination of a dual connectivity of the first RAT and the second RAT (EN-DC), a second parameter indicating a supported bandwidth combination set for a second RAT component of the EN-DC band combination, and a third parameter indicating a supported bandwidth combination set for an intra-band component of the first RAT and the second RAT, of the EN-DC band combination; and a transmission unit configured to transmit terminal capability information including the determined first, second, and third parameters to the base station apparatus.

Abstract: A user equipment includes a receiving unit receiving band information of a RAT1 and a RAT2 from a base station, a control unit determining a parameter1 indicating a supported bandwidth combination (BWC) for the RAT1's part for inter-band EN-DC of the RAT1 and the RAT2 and a parameter2 indicating a BWC supported for all bands of the inter-band EN-DC and the intra-band EN-DC of the RAT1 and the RAT2 for dual connectivity of the RAT1 and the RAT2, the dual connectivity being composed of the inter-band EN-DC and the intra-band EN-DC of the RAT1 and the RAT2, for the band combination of the inter-band EN-DC, any combination of the RAT2's part of the BWC indicated by the parameter1 and the RAT1's part of the BWC indicated by the parameter1 is supported, and a transmitting unit transmitting terminal capability information including the determined parameter1 and parameter2 to the base station.

Abstract: A terminal includes: a control section that generates Capability information including UE Capability for a Power Class; and a transmission section that transmits the Capability information. The Power Class is specified by four items of Max Total Radiated Power (TRP), Max peak Equivalent Isotropic Radiated Power (EIRP), Min peak EIRP, and Spherical coverage EIRP, and an Inter-band-Carrier-Aggregation (CA) specified value of at least one of the Max peak EIRP and the Min peak EIRP for Inter-band CA in which a plurality of bands are used is defined by a method different from a method for a non-Inter-band-CA specified value.