A transmission mode selection method and a device are provided. The method includes: determining first indication information, where the first indication information is used to indicate a changed transmission mode and/or indicate to change a transmission mode; and sending the first indication information to a terminal device. There may be a plurality of transmission modes for transmitting a data packet duplicated at a PDCP layer, in other words, there may be a plurality of modes for PDCP duplication. A transmission mode can be selected by using the first indication information. For example, when reliability of a mode for PDCP duplication is not high, another transmission mode can be selected by using the first indication information. In this way, a reliability requirement of a service is met as much as possible, thereby improving transmission quality of the service.

A method for a user equipment (UE) configured with coverage enhancement configuration is provided. The method receives first data associated with ultra-reliable and low-latency communications (URLLC) traffic to be transmitted to a serving cell. The method then determines whether the UE is within a URLLC coverage area. Upon determining that the UE is within the URLLC coverage area, the method deactivates the coverage enhancement configuration before transmitting the first data to the serving cell.

Aspects of the embodiments are directed to systems, methods, and devices that can activate forward error correction (FEC) based on the channel loss of a channel. The channel's loss can be characterized as a high loss channel if the channel loss exceeds a predetermined threshold value. For channels with high loss and for those that operate at high data rates (e.g., data rates commensurate with PCIe Gen 4 or Gen 5), FEC can be activated so that the channels can achieve higher data rates.

Embodiments of this application provide data transmission methods and apparatuses. One method includes: receiving, by a communications apparatus, indication information from a network device, wherein the indication information indicates a data distribution selected from a first data distribution and a second data distribution; performing, by the communications apparatus, data transmission with the network device based on the data distribution; wherein the data distribution indicates a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, and wherein the one or more OFDM symbols are consecutive in time-domain.

The disclosure is related to adaptive transcoding of video streams from a camera. A camera system includes a camera and a base station connected to each other in a first communication network, which can be a wireless network. When a user requests to view a video from the camera, the base station obtains a video stream from the camera, transcodes the video stream, based on one or more input parameters, to generate a transcoded video stream, and transmits the transcoded video stream to a user device. The base station can transcode the video stream locally, e.g., within the base station, or in a cloud network based on transcoding location factors. Further, the camera system can also determine whether to stream the video to the user directly from the base station or from the cloud network based on streaming location factors.

The present invention relates to a method by which a vehicle-to-everything (V2X) terminal performs V2X communication in a wireless communication system, and a device. Particularly, the method comprises the steps of: receiving information on a resource pool for V2X communication; and transmitting a message for at least one of a plurality of communication services having different coverages, on the basis of the resource pool.

Embodiments of the present disclosure relate to methods, apparatuses and computer program products for network optimization in a wireless network. A method includes determining a plurality of communication performance metrics associated with a plurality of access points; determining, based on the plurality of communication performance metrics, a plurality of communication performance problems to be solved for the plurality of access points; determining, from a predetermined set of optimization strategies, an optimization strategy for an access point of the plurality of access points based on the plurality of communication performance problems; and causing the access point to apply the determined optimization strategy.

The present disclosure provides a method for performing link adaptation at a network node in a wireless communication network, which may include identifying first traffic and second traffic included in transmission between the network node and a user equipment, wherein the first traffic is related to first service having a first quality of service (QoS) requirement, and the second traffic is related to second service having a second QoS requirement; and applying a first link adaptation loop catering for the first QoS requirement to the first traffic, and applying a second link adaptation loop catering for the second QoS requirement to the second traffic. In one example, the second link adaptation loop is independent from the first link adaptation loop. In another example, the second link adaptation loop is dependent on the first link adaptation loop.

In order to transmit a large amount of data in series at a time with a MIMO communication scheme while avoiding deterioration of decoding characteristics due to change over time by a channel matrix, a wireless communication system uses an open-loop type and a closed-loop type of MIMO communication modes in combination and switches to the open-loop MIMO communication mode in response to the information that the amount of data to be transmitted at a time has exceeded a predetermined amount of bits or a predetermined transmission time during data transmission under the closed-loop MIMO communication mode. By discontinuing useless closed-loop MIMO communication and switching to the open-loop MIMO communication mode that is better than Zero-forcing, the decoding characteristics are prevented from simply becoming deteriorated.

An apparatus for a wireless communication system is configured to be connected to at least one UE via a sidelink for a sidelink communication with the one or more UEs. The apparatus is configured to obtain distance information representing a certain communication range or a certain distance around the apparatus, perform a communication with one or more UEs at or within the certain communication range or the certain distance at a first priority to meet a predefined QoS, and perform a communication with one or more UEs outside the certain communication range or the certain distance at a second priority, the first priority being higher than the second priority to meet a predefined QoS.