A user terminal according to the present invention includes: a reception section that receives each of information indicating a code rate for a first uplink control channel, and information indicating a code rate for a second uplink control channel having a longer duration than that of the first uplink control channel; and a control section that controls transmission of Uplink Control Information (UCI) based on a code rate indicated by the information matching an uplink control channel used for the transmission of the uplink control information.

Efficient downlink transmission is implemented. A terminal apparatus includes: a receiver configured to receive a sequence of bits in a physical downlink control channel, wherein the sequence of bits is scrambled with a scrambling sequence initialized by c.sub.init, the c.sub.init is given based at least on N.sub.ID and N.sub.RNTI, the N.sub.ID is given based at least on a higher layer parameter Control-scrambling-Identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the N.sub.RNTI is given based at least on a Cell-Radio Network Temporary Identifier (C-RNTI), and the N.sub.ID is given based at least on a physical layer cell identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the N.sub.RNTI is not given based on the C-RNTI.

Efficient downlink transmission is implemented. A terminal apparatus includes: a receiver configured to receive a sequence of bits in a physical downlink control channel, wherein the sequence of bits is scrambled with a scrambling sequence initialized by c.sub.init, the c.sub.init is given based at least on N.sub.ID and N.sub.RNTI, the N.sub.ID is given based at least on a higher layer parameter Control-scrambling-Identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the N.sub.RNTI is given based at least on a Cell-Radio Network Temporary Identifier (C-RNTI), and the N.sub.ID is given based at least on a physical layer cell identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the N.sub.RNTI is not given based on the C-RNTI.

This disclosure provides systems, methods and apparatus, and computer programs encoded on computer storage media, for managing cross-carrier scheduling by a processor of a wireless device. In one aspect, a wireless device may determine that a scheduled cell is configured to be scheduled by a scheduling cell. The wireless device may receive downlink control information (DCI) from a scheduling cell. The wireless device may determine an association of the DCI and an index based on the received DCI. The wireless device may perform cross-carrier scheduling of communications with a first transmit-receive point (TRP) or a second TRP based on the DCI and the associated index.

This disclosure provides systems, methods and apparatus, and computer programs encoded on computer storage media, for managing cross-carrier scheduling by a processor of a wireless device. In one aspect, a wireless device may determine that a scheduled cell is configured to be scheduled by a scheduling cell. The wireless device may receive downlink control information (DCI) from a scheduling cell. The wireless device may determine an association of the DCI and an index based on the received DCI. The wireless device may perform cross-carrier scheduling of communications with a first transmit-receive point (TRP) or a second TRP based on the DCI and the associated index.

The disclosure provides a transmission method and device. The transmission method includes: receiving, by a user equipment, configuration information for indicating whether transmission of uplink control information on a first physical uplink shared channel is supported; and transmitting, by the user equipment, the first physical uplink shared channel and/or the uplink control information based on the configuration information.

The disclosure provides a transmission method and device. The transmission method includes: receiving, by a user equipment, configuration information for indicating whether transmission of uplink control information on a first physical uplink shared channel is supported; and transmitting, by the user equipment, the first physical uplink shared channel and/or the uplink control information based on the configuration information.

Various embodiments of the present invention disclose a method and device for an electronic device to provide a multimedia service in an IMS network environment. According to various embodiments of the present invention, an electronic device includes: a wireless communication module; a processor operatively connected with the wireless communication module; and a memory operatively connected with the processor, wherein the memory may store instructions which, when executed, cause the processor to: establish a session for a media service with a counterpart electronic device by using the communication module; transmit a packet including a first message related to the use of a quality service to the counterpart electronic device after the session is established; determine whether the counterpart electronic device can use the quality service on the basis of a second message in a packet received from the counterpart electronic device; enable at least one quality improvement function on the basis of the second message if the counterpart electronic device can use the quality service; and while the media service is being performed, transmit to the counterpart electronic device, a packet having improved quality on the basis of the quality improvement function. Various other embodiments are also possible.

An apparatus and a method for reducing power consumption of an Application Processor (AP) in an electronic device are provided. The electronic device includes a first processor for supporting a first Internet Protocol (IP) Multimedia Subsystem (IMS) protocol stack, and a second processor for supporting a second IMS protocol stack. The first processor includes an AP for processing a multimedia service, and the second processor includes at least one of a Communication Processor (CP), a Modem Processor (MP), and a Baseband Processor (BP) for processing a communication service.

An apparatus and a method for reducing power consumption of an Application Processor (AP) in an electronic device are provided. The electronic device includes a first processor for supporting a first Internet Protocol (IP) Multimedia Subsystem (IMS) protocol stack, and a second processor for supporting a second IMS protocol stack. The first processor includes an AP for processing a multimedia service, and the second processor includes at least one of a Communication Processor (CP), a Modem Processor (MP), and a Baseband Processor (BP) for processing a communication service.