Systems, apparatuses, and methods are described for wireless communications. Packet data convergence protocol (PDCP) packet duplication may be configured for a bearer of a wireless device. The bearer may use various cells to send packets. A base station central unit and/or a base station distributed unit may configure the cells for the bearer based on various types of information.

In modern networks, RRU and BBU equipment of an access point site typically handles traffic from a single sector. An RRU-BBU pair process that traffic (often limited to a single spectrum from a single sector) according to implemented capabilities and other equipment located further upstream perform functions that rely on information from multiple sectors. An integrated device (e.g., white box) can integrate the functionality of multiple RRU (or NR in 5G) and the functionality of multiple BBU (or DU/CU splits in 5G), which can reduce implementation footprint, costs, and can provide related services more efficiently without going upstream.

A baseband processing unit (BPU) and method therein for segmenting data to be transferred into data packets and transferring data packets to a radio processing unit via a communication link. The BPU selects a certain amount of data among the data to be transferred and obtain a packet loss pattern of the communication link based on the current load and user scenario. The BPU segments the data to be transferred into data packets based on the packet loss pattern of the communication link such that the selected data are distributed to data packets to be transferred in a packet region where packet loss rate is lower than a packet loss threshold and transfers the data packets to the radio processing unit.

The disclosure relates to a communication technique for convergence between an IoT technology and a 5G communication system for supporting higher data transmission rate than a 4G system, and a system thereof. The disclosure may be applied to intelligence services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) on the basis of a 5G communication technology and an IoT-related technology. According to an embodiment of the present discourse, a method of a terminal in a communication system may comprise the steps of: receiving, from a base station, at least one segmented radio resource control (RRC) message including a part of an RRC message which has a size larger than a preconfigured size; storing the at least one received segmented RRC message; identifying that a radio link failure (RLF) has occurred with respect to the base station; and discarding the stored segmented RRC message upon the occurrence of the radio link failure.

A method of establishing an asymmetric network between at least one node device and a gateway device is provided. The method may include transmitting a reduced data package from the node device, receiving the reduced data package in a data stream at the gateway device, validating bits of the data stream, and retrieving the reduced data package based on the validated bits.

Embodiments provide a transfer method for transferring data of variable length using a fixedly specified number of sub-data packets to which the data of variable length is distributed.

A method for link aggregation of a plurality of communication links, performed in a communication arrangement, the method comprising; obtaining a data segment to be transmitted, identifying a preferred communication link out of the plurality of communication links for transmission of the data segment, and, if the preferred communication link is not available for transmission of the data segment within a current time period, identifying an alternative communication link out of the plurality of communication links different from the preferred communication link, fragmenting the data segment into at least a first fragment and a second fragment, attaching a fragment header to each of the first and second fragments, each fragment header being configured to identify the respective fragment as a fragment belonging to a data segment, and transmitting the first fragment over the alternative communication link.

A wireless device may receive a radio link control (RLC) protocol data unit (PDU) from a lower layer (e.g., from a media access control (MAC) layer) when processing communications (e.g., packets) received from another wireless device. The receiving wireless device may identify that the PDU is an RLC service data unit (SDU) segment based at least in part on an indication corresponding to a sequence number associated with the RLC SDU segment. The receiving wireless device may then determine that the RLC SDU segment is received out of order based on previously received PDUs or previously received RLC SDU segments, and initiate a reassembly timer based on the out of order determination for the RLC SDUs. If the remaining RLC SDU segments (e.g., that complete the RLC SDU) are received before reassembly timer expires, the wireless device may reassemble the RLC SDU to be passed to a higher layer.

Apparatuses, systems, and methods for a wireless device to perform a method including a user equipment device (UE) receiving from a network entity, a configuration message, wherein the configuration message includes a parameter specifying out-of-order delivery of data units from lower layers to upper layers of a protocol stack implemented on the UE, configuring a radio link control (RLC) layer of a protocol stack for out-of-order delivery based on the received configuration message, and notifying the network entity of the configuration of the RLC layer.

Aspects of the disclosure relate to mechanisms for code block segmentation in a wireless communication network (e.g., a sidelink network). In some examples, a wireless communication device may reserve resources across two or more slots on a carrier for transmission of a transport block. The wireless communication device may then select code block parameters for segmenting the transport block into a plurality of encoded code blocks such that each encoded code bock is fully contained within a single slot. In some examples, the code block parameters may include a number of encoded code blocks and a respective size of each of the encoded code blocks.