Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a sidelink bandwidth part configuration for a plurality of sidelink carriers, wherein the sidelink bandwidth part configuration configures one or more sidelink bandwidth parts for each sidelink carrier of the plurality of sidelink carriers. The UE may identify at least one selected sidelink carrier selected from the plurality of sidelink carriers and an active sidelink bandwidth part for each of the at least one selected sidelink carrier from the one or more sidelink bandwidth parts configured for the at least one selected sidelink carrier. The UE may communicate with another UE in the active sidelink bandwidth part on each of the at least one selected sidelink carrier. Numerous other aspects are described.

Methods, systems, and devices for wireless communications are described. The method includes receiving, from a base station and at the UE of a group of UEs, control signaling indicating a link between a first search space set and a second search space set used for a multicast broadcast service, where a first downlink control channel for the group of UEs is transmitted in the first search space set and a second downlink control channel is transmitted in the second search space set, monitoring the first search space set for a first instance of control information in the first downlink control channel and the second search space set for a second instance of the control information in the second downlink control channel, and decoding the first instance or the second instance of the control information, or both, based on the monitoring.

An apparatus for wireless communication includes a transmitter configured to communicate with a base station based on a first uplink bandwidth part (BWP) that includes a first frequency subset and that further includes a second frequency subset. The apparatus further includes a receiver configured to receive, from the base station, one or more messages including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled. The transmitter is further configured to transmit, to the base station, an uplink control channel transmission using both the first frequency subset and the second frequency subset based on the frequency hopping indicator specifying that the frequency hopping mode is enabled or using one of the first frequency subset or the second frequency subset based on the frequency hopping indicator specifying that the frequency hopping mode is disabled.

The disclosure relates to a communication technique for combining a 5G communication system with an IoT technology to support a higher data transmission rate than a 4G system, and a system thereof. The disclosure may be applied to intelligent services (for example, services related to smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security and safety, etc.) based on a 5G communication technology and an IoT-related technology. In an embodiment of the disclosure, a method performed by a terminal in a wireless communication system is provided. The method comprises: receiving, from a base station, a radio resource control (RRC) message including information on an identifier to indicate a secondary cell (Scell), information on at least one bandwidth part (BWP) of the Scell, and information including first information on a first BWP to be used as dormant BWP among the at least one BWP and second information on a second BWP to be activated as non-dormant BWP from dormant BWP; receiving, from the base station, downlink control information (DCI) including a bitmap associated with a BWP activation of the Scell; and activating a BWP identified based on the identifier, the bitmap, and at least one of the first information or the second information. According to the disclosure, via a method by which a new dormant (or hibernation) mode may be operated in units of bandwidth parts (bandwidth part-level), a carrier aggregation technology can be rapidly activated, and a battery of a terminal can be saved.

The 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 disclosure pertains to selection of resources in a wireless communication system. A method of operating a User Equipment (UE) is provided. The method includes acquiring configuration information of a plurality of sidelink resource pools and transmitting a sidelink signal to another UE using one resource pool among the plurality of sidelink resource pools. The plurality of sidelink resource pools may be configured within an equal Bandwidth Part (BWP).

This application provides a data transmission method and a communications apparatus. The method includes: receiving uplink resource configuration information including information about at least two uplink reference points, and one uplink reference point corresponds to one uplink carrier; and determining, based on the uplink resource configuration information, an uplink carrier on which an uplink transmission resource is located.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) scheduling transmission of a first one or more physical uplink control channel (PUCCH) communications on a first component carrier and a second one or more PUCCH communications on a second component carrier, wherein the DCI includes information identifying a first transmit power configuration for the first one or more PUCCH communications and a second transmit power configuration for the second one or more PUCCH communications. The UE may transmit the first one or more PUCCH communications in accordance with the first transmit power configuration and the second one or more PUCCH communications in accordance with the second transmit power configuration. Numerous other aspects are described.

Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).

Methods, systems, and devices for wireless communication are described. A base station may determine a configuration including a set of signature waveforms for a micro-sleep mode of operation in shared spectrum, and may transmit the configuration to at least one user equipment (UE) served by the base station. Additionally, a UE may receive a configuration including a set of signature waveforms for a micro-sleep mode of operation in shared spectrum. The UE may detect at least one signature waveform of the set of signature waveforms, and in response to detecting the at least one signature waveform, operate in the micro-sleep mode for a period of time.

A method and apparatus for handling a control channel for carrier aggregation in wireless communications. The method includes determining which component carrier to listen to, detecting the downlink control channel, processing mapping information related to downlink and uplink transmissions and operating discontinuous reception with respect to carrier aggregation. The method also includes detecting a component carrier, determining the component carrier type and locating the anchor component carrier, if necessary, where the anchor component carrier carries the carrier aggregation information.