Presented are systems and methods for dynamically changing multicast service delivery between multicast and unicast with service continuity. A wireless communication device may receive multicast radio resource configuration information from a network. The wireless communication device may configure, according to the multicast radio resource configuration information, an air interface protocol stack of the wireless communication device. The wireless communication device may receive data of a multicast service according to the multicast radio resource configuration information.

The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT∼-related technology. The present invention discloses a method and device for setting and applying a plurality of Discontinuous receptions (DRXs).

Disclosed are a communication technique which merges, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. Disclosed are a method and apparatus for driving a PDCP layer apparatus during data decompression failure in a next-generation mobile communication system.

A method and apparatus for hybrid automatic repeat request (HARQ) transmissions for configured grants (CGs) in a wireless communication system is provided. A first wireless device receives a retransmission resource for a HARQ process identifier (ID) for a CG. When a number of transmissions of a media access control (MAC) protocol data unit (PDU) does not reach to a maximum number of transmissions, the first wireless device performs retransmission of the MAC PDU to a second wireless device by using the retransmission resource. When the number of transmissions of the MAC PDU reaches to the maximum number of transmissions, the first wireless device flushes a HARQ buffer in a sidelink process.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, radio resource control signaling configuring an uplink transmission configuration indication (TCI) state pool that includes multiple candidate uplink TCI states associated with an uplink resource. The base station may transmit, and the UE may receive, downlink signaling that identifies, among the multiple candidate uplink TCI states included in the uplink TCI state pool, an uplink TCI state to be used to transmit an uplink communication on the uplink resource. Accordingly, the UE may transmit, to the base station, the uplink communication on the uplink resource using an uplink transmit beam based at least in part on the uplink TCI state identified in the downlink signaling. Numerous other aspects are provided.

Embodiments of this application provide a communication method, apparatus, and system, and a storage medium. The method includes: sending first indication information, where the first indication information is used to configure a candidate spatial parameter information set of a first uplink channel; and sending second indication information, where the second indication information indicates at least one piece of first spatial parameter information in the candidate spatial parameter information set, the at least one piece of first spatial parameter information is used to transmit a second uplink channel and/or an uplink signal, and the first uplink channel and the second uplink channel are of different types.

A data transmission method applied to an access network and a device, the method including receiving, by a radio access network (RAN) device of an access network, a first data packet from a first terminal device, wherein the first data packet comprises a logical channel identifier (LCH ID), determining, by the RAN device, whether the LCH ID meets a first preset rule, and sending, by the RAN device, in response to determining that the LCH ID meets the first preset rule, the first data packet through a common radio link control (RLC) entity.

A method and apparatus for transmitting data and a communication system. The apparatus for transmitting data includes a first processing unit, which is configured to transmit a second physical uplink shared channel (PUSCH) by the terminal equipment in a case where a first physical uplink shared channel (PUSCH) and the second physical uplink shared channel (PUSCH) have identical physical layer priorities and transmission of the first physical uplink shared channel (PUSCH) and transmission of the second physical uplink shared channel (PUSCH) at least partially overlap in the time domain.

Some aspects include an apparatus, method, and computer program product for facilitating control messaging for multi-beam communications in 5G wireless communication systems. Nodes of a 5G network may be generate Medium Access Control Control Elements (MAC CEs) to update User Equipment (UE) with different Component Carrier (CC) settings. The MAC CEs may update a list of CCs to reduce messaging overhead and latency. For example, a MAC CE may indicate an update for a Transmission Configuration Indication (TCI) state for a list of CCs. Similarly, a MAC CE may be used to update a spatial relation for a Sounding Reference Signal (SRS) resource set and/or a SRS resource corresponding to a list of CCs. A MAC CE may also be used to update multiple TCI codepoints having one or two TCI states in a multi-Transmission Reception Point (multi-TRP) scenario.

An information processing method, an apparatus, and a communication device are provided. The information processing method includes: triggering a pre-emptive BSR; and canceling the pre-emptive BSR according to a first status in a process from triggering of the pre-emptive BSR to generation of the pre-emptive BSR, where the first status includes at least one of the following: a reception status of uplink data; and a triggering status of a target BSR, where the target BSR is at least one of a regular BSR and a periodic BSR.