The present specification proposes a discontinuous reception operation method characterized by: in a wireless communication system, a terminal in which a plurality of cells are configured performing a physical downlink control channel (PDCCH) monitoring on-duration; receiving bandwidth part (BWP) setting information, wherein the BWP setting information informs a specific BWP; receiving a PDCCH on the basis of the PDCCH monitoring, wherein the PDCCH includes dormant indication information for a specific cell from among the plurality of cells of the terminal; and activating the specific BWP on the basis of the dormant indication information indicating non-dormancy.

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond a 4G communication system such as LTE. To this end, a base station using a large-scale antenna transmits, to a terminal, reference signal resource configuration information including multiple pieces of reference signal configuration information and reference signal port information, for transmission of a reference signal, and transmits the reference signal to the terminal using some or all of channel measurement resources indicated by the multiple pieces of reference signal configuration information and the reference signal port information included in the reference signal resource configuration information. In this case, the channel measurement resources may correspond to antenna ports, the number of which is indicated by a combination of the multiple pieces of reference signal configuration information and the reference signal port information.

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond a 4G communication system such as LTE. To this end, a base station using a large-scale antenna transmits, to a terminal, reference signal resource configuration information including multiple pieces of reference signal configuration information and reference signal port information, for transmission of a reference signal, and transmits the reference signal to the terminal using some or all of channel measurement resources indicated by the multiple pieces of reference signal configuration information and the reference signal port information included in the reference signal resource configuration information. In this case, the channel measurement resources may correspond to antenna ports, the number of which is indicated by a combination of the multiple pieces of reference signal configuration information and the reference signal port information.

Embodiments include methods for a user equipment (UE) to perform quality of experience (QoE) measurements configured by a wireless network. Such methods include receiving, from a radio access network node (RNN) in the wireless network, a QoE measurement configuration for one or more services provided by the UE application layer. Such methods include performing application-layer QoE measurements for the one or more services according to the QoE measurement configuration and sending, to or via the RNN in accordance with QoE measurement configuration, one or more messages comprising: one or more QoE measurement reports comprising results of the QoE measurements; and network assistance information (NAI) related to one or more paths that carry data associated with the one or more services. Other embodiments include complementary methods for RNNs and measurement functions, as well as UEs, RNNs, and measurement functions configured to perform such methods.

Embodiments include methods for a user equipment (UE) to perform quality of experience (QoE) measurements configured by a wireless network. Such methods include receiving, from a radio access network node (RNN) in the wireless network, a QoE measurement configuration for one or more services provided by the UE application layer. Such methods include performing application-layer QoE measurements for the one or more services according to the QoE measurement configuration and sending, to or via the RNN in accordance with QoE measurement configuration, one or more messages comprising: one or more QoE measurement reports comprising results of the QoE measurements; and network assistance information (NAI) related to one or more paths that carry data associated with the one or more services. Other embodiments include complementary methods for RNNs and measurement functions, as well as UEs, RNNs, and measurement functions configured to perform such methods.

Embodiments include methods for a UE to perform measurements in a wireless network based on conditions related to data traffic. Such methods include receiving, from a network node of the wireless network, one or more conditional measurement configurations, each including: a measurement configuration associated with one or more cells, and one or more measurement conditions that need to be fulfilled to apply the measurement configuration, including at least one first execution condition related to UE data traffic and/or one or more UE applications. Such methods include monitoring for the measurement conditions included in the respective conditional measurement configurations and, based on detecting fulfillment of one or more measurement conditions included in a particular conditional measurement configuration, applying the measurement configuration included in the particular conditional measurement configuration towards measurements of the associated cells. Other embodiments include complementary methods for a network node, as well as UEs and network nodes.

Embodiments include methods for a UE to perform measurements in a wireless network based on conditions related to data traffic. Such methods include receiving, from a network node of the wireless network, one or more conditional measurement configurations, each including: a measurement configuration associated with one or more cells, and one or more measurement conditions that need to be fulfilled to apply the measurement configuration, including at least one first execution condition related to UE data traffic and/or one or more UE applications. Such methods include monitoring for the measurement conditions included in the respective conditional measurement configurations and, based on detecting fulfillment of one or more measurement conditions included in a particular conditional measurement configuration, applying the measurement configuration included in the particular conditional measurement configuration towards measurements of the associated cells. Other embodiments include complementary methods for a network node, as well as UEs and network nodes.

Embodiments include methods for a UE to perform mobility operations in a wireless network based on conditions related to data traffic. Such methods include receiving, from a network node, one or more conditional reconfigurations. Each includes a reconfiguration message associated with a candidate target cell and one or more execution conditions that need to be fulfilled to apply the reconfiguration message when performing a mobility operation, including at least one first execution condition related to UE data traffic and/or to one or more UE applications. Such methods include monitoring for the execution conditions in the conditional reconfigurations and based on detecting fulfillment of one or more execution conditions in a particular conditional measurement configuration, performing a mobility operation towards the candidate target cell associated with the reconfiguration message in the particular conditional measurement configuration. Other embodiments include complementary methods by a network node, as well as UEs and network nodes

Embodiments include methods for a UE to perform mobility operations in a wireless network based on conditions related to data traffic. Such methods include receiving, from a network node, one or more conditional reconfigurations. Each includes a reconfiguration message associated with a candidate target cell and one or more execution conditions that need to be fulfilled to apply the reconfiguration message when performing a mobility operation, including at least one first execution condition related to UE data traffic and/or to one or more UE applications. Such methods include monitoring for the execution conditions in the conditional reconfigurations and based on detecting fulfillment of one or more execution conditions in a particular conditional measurement configuration, performing a mobility operation towards the candidate target cell associated with the reconfiguration message in the particular conditional measurement configuration. Other embodiments include complementary methods by a network node, as well as UEs and network nodes

The present disclosure relates to a method and apparatus for transmitting and receiving data in a wireless communication system. An operating method of a terminal that is able to communicate with a master node and a secondary node in a wireless communication system includes detecting a master cell group (MCG) failure related to the master node, in response to the detecting of the MCG failure, changing a primary path of a split signaling radio bearer 1 (SRB1) from a radio link control (RLC) bearer of an MCG related to the master node to one RLC bearer from among a plurality of RLC bearers of a secondary cell group (SCG) related to the secondary node, based on a pre-determined criterion, and transmitting a message related to the MCG failure to the master node, by using the RLC bearer of the SCG changed as the primary path.