The present specification relates to a method for receiving dormant bandwidth part (BWP) configuration information, performed by a terminal in a wireless communication system, the method comprising: receiving the dormant BWP configuration information from a base station, wherein the dormant BWP configuration information is information about a downlink BWP used as the dormant BWP among at least one downlink BWP set to the terminal; receiving, from the base station, downlink control information (DCI) notifying activation of the dormant BWP; and stopping monitoring of a physical downlink control channel (PDCCH) on the dormant BWP, wherein a BWP inactivity timer is not used on the basis of the activation of the dormant BWP, and the BWP inactivity timer is a timer for a transition to a default BWP.

The present specification relates to a method for receiving dormant bandwidth part (BWP) configuration information, performed by a terminal in a wireless communication system, the method comprising: receiving the dormant BWP configuration information from a base station, wherein the dormant BWP configuration information is information about a downlink BWP used as the dormant BWP among at least one downlink BWP set to the terminal; receiving, from the base station, downlink control information (DCI) notifying activation of the dormant BWP; and stopping monitoring of a physical downlink control channel (PDCCH) on the dormant BWP, wherein a BWP inactivity timer is not used on the basis of the activation of the dormant BWP, and the BWP inactivity timer is a timer for a transition to a default BWP.

Various solutions for physical downlink control channel (PDCCH) monitoring enhancement for carrier aggregation (CA) with respect to user equipment and network apparatus in mobile communications are described. An apparatus may transmit a capability report to indicate a supported PDCCH monitoring capability to a network node. The apparatus may receive a PDCCH monitoring configuration compliant with the supported PDCCH monitoring capability from the network node. The apparatus may determine a monitoring budget based on the PDCCH monitoring configuration and the supported PDCCH monitoring capability. The apparatus may perform a PDCCH monitoring according to the monitoring budget.

Systems and methods related to UL communications in a wireless network are provided. A UE receives an indication of a plurality of TXOPs for a RACH procedure from a BS. In an embodiment, the UE starts a timer after either successfully transmitting a random access message to the BS or failing to succeed in any of the TXOPs. In another embodiment, the UE starts the timer at a pre-agreed time after one of the TXOPs, regardless of whether the random access message has been successfully transmitted yet or not. In another embodiment, the UE receives as part of a RACH response an indication of whether the RACH response is split into multiple parts. If the UE does not locate an identifier corresponding to the UE in the RACH response, the UE checks for the indication and, if present, listen for the next RACH response identified from the indication.

Systems and methods related to UL communications in a wireless network are provided. A UE receives an indication of a plurality of TXOPs for a RACH procedure from a BS. In an embodiment, the UE starts a timer after either successfully transmitting a random access message to the BS or failing to succeed in any of the TXOPs. In another embodiment, the UE starts the timer at a pre-agreed time after one of the TXOPs, regardless of whether the random access message has been successfully transmitted yet or not. In another embodiment, the UE receives as part of a RACH response an indication of whether the RACH response is split into multiple parts. If the UE does not locate an identifier corresponding to the UE in the RACH response, the UE checks for the indication and, if present, listen for the next RACH response identified from the indication.

Certain embodiments provide a method of updating a security. The method can include monitoring a bearer that includes first and second radio accesses according to different radio technologies between user equipment and a communications network. One or more properties of the monitored bearer can be determined. An update of a security key utilized for securing communications over at least one of the radio accesses can be triggered in response to determining that the determined properties meet at least one triggering condition capable of indicating a need for the update.

Certain embodiments provide a method of updating a security. The method can include monitoring a bearer that includes first and second radio accesses according to different radio technologies between user equipment and a communications network. One or more properties of the monitored bearer can be determined. An update of a security key utilized for securing communications over at least one of the radio accesses can be triggered in response to determining that the determined properties meet at least one triggering condition capable of indicating a need for the update.

An information processing apparatus connectable to one or more devices via a network. The apparatus includes a measuring unit measuring an inclination of the apparatus; a determining unit determining whether the inclination of the apparatus relative to a given surface of one of the one or more devices is within a predetermined inclination range; a receiving unit that receives radio waves; an obtaining unit obtaining identification information from the radio waves; a radio wave strength measuring unit measuring strength of the radio waves; a selection unit determining whether to select a given one of the one or more devices based on the strength of the radio waves; and a connection unit connecting the information processing apparatus to one of the one or more devices selected by the selection unit and for which the inclination of the apparatus is within the predetermined inclination range.

An information processing apparatus connectable to one or more devices via a network. The apparatus includes a measuring unit measuring an inclination of the apparatus; a determining unit determining whether the inclination of the apparatus relative to a given surface of one of the one or more devices is within a predetermined inclination range; a receiving unit that receives radio waves; an obtaining unit obtaining identification information from the radio waves; a radio wave strength measuring unit measuring strength of the radio waves; a selection unit determining whether to select a given one of the one or more devices based on the strength of the radio waves; and a connection unit connecting the information processing apparatus to one of the one or more devices selected by the selection unit and for which the inclination of the apparatus is within the predetermined inclination range.

A system includes a method for detecting a signal interference in a communication signal of a wireless communication system. An identified source of the signal interference is determined according to an interference profile of a plurality of interference profiles associated with an interference profile library having information that approximates characteristics of the signal interference. The signal interference of the communication signal is mitigated according to an interference parameter associated with the identified source by filtering the communication signal according to the interference parameter.