A communication apparatus includes a circuitry and a transmitter. In operation, the circuitry generates a Demodulation Reference Signal (DMRS) and generates downlink control information indicating a mapping pattern of the DMRS from a plurality of mapping patterns, and the transmitter transmits the DMRS and the downlink control information. The plurality of mapping patterns include a first mapping pattern and a second mapping pattern. Resource elements used for the DMRS of the second mapping pattern are same as a part of resource elements used for the DMRS of the first mapping pattern. A number of the resource elements used for the DMRS of the first mapping pattern is larger than a number of the resource elements used for the DMRS of the second mapping pattern.

Asynchronous multi-point transmission techniques for MIMO networks are provided. An example method comprises receiving, by a device comprising a processor, a first data signal from a first TP device of a wireless communication network, wherein the first data signal comprises first code-word information generated based on a data. The method further comprises receiving, by the device, a second data signal from a second TP device of the wireless communication network, wherein the second data signal comprises second code-word generated based on the data, wherein the first code-word information and the second-code word information are different, and wherein the first TP device and the second TP device are geographically separated by a threshold distance. The device can further process the first data signal and the second data signal to generate a unified data signal representative of the data.

A device may include a transceiver configured to access a communication network including a primary cell and a secondary cell, and a device controller configured to receive, on the secondary cell, scheduling information for the primary cell, and monitor a common search space for the primary cell. The device controller may he configured to selectively monitor the common search space for broadcast information. The device controller may be configured to selectively monitor the common search space based on a type of the common search space on the primary cell. A method may include scheduling, by a first scheduling mechanism, a primary cell, wherein the first scheduling mechanism comprises scheduling the primary cell by a secondary cell, scheduling, by a second scheduling mechanism, the primary cell, and deactivating the secondary cell based on switching from the first scheduling mechanism to the second scheduling mechanism. The second scheduling mechanism may include self-scheduling.

Provided are a method by which a first device performs wireless communication, and an apparatus supporting same. The method may comprise the steps of: receiving, from a base station, first downlink control information (DCI) for activating a configured sidelink (SL) grant, wherein the first DCI includes information related to a physical uplink control channel (PUCCH) resource for reporting SL hybrid automatic repeat request (HARD) feedback to the base station; transmitting a medium access control protocol data unit (MAC PDU) to a second device through a physical sidelink shared channel (PSSCH) on the basis of the configured SL grant; receiving, from the base station, second DCI for deactivating the configured SL grant; transmitting, to the base station, an SL confirmation medium access control (MAC) control element (CE) in response to the second DCI; and determining whether the PUCCH resource related to at least one SL resource allocated by the configured SL grant is valid on the basis of the time at which the SL confirmation MAC CE was transmitted.

The present application discloses a vehicle positioning method and device, a positioning vehicle, a vehicle to be positioned, and a storage medium. The method includes: determining configuration information of a positioning reference signal of a positioning vehicle; and transmitting, according to the configuration information, the positioning reference signal to a vehicle to be positioned, and the vehicle to be positioned determines a positioning measurement quantity based on the positioning reference signal. The configuration information of the positioning reference signal is determined by the positioning vehicle and the transmission of the positioning reference signal is started to the vehicle to be positioned according to the configuration information, and the vehicle to be positioned can determine the positioning measurement quantity according to the positioning reference signal, and improving the positioning performance and avoiding configuration conflicts between positioning reference signals.

Embodiments of this application disclose a method for reporting CSI of a multi-hop path and a related apparatus. The method includes: The multi-hop path includes a first device, a second device, and a third device, where the first device is a source device, and the second device is a target device. The first device obtains a first CSI report of a target transmission path. The first CSI report indicates the target transmission path. According to embodiments of this application, so that a comprehensive channel state of the multi-hop path can be obtained from a data sending device, namely, the source device, by reporting first CSI.

Apparatus and method for counter measures for attacking messages are provided. Solution comprises communicating (500) with another apparatus utilising sidelink transmissions, monitoring (502) for an attacking sidelink message based on the content or timing of received messages and entering (504) a defensive mode to mitigate the attack when one or more received messages has been detected as attacking sidelink messages.

Disclosed are methods for base stations to indicate the start and end of a downlink message, by prepending and appending demarcations to the message in 5G or 6G. A user device can then readily locate the message by detecting the demarcations, greatly reducing the amount of computation required of the receiver processor. There may be no need for a DCI message alerting the user device of the comming message. Each demarcation may be a brief predetermined bit sequence such as a demodulation reference or an identification code of the intended recipient. The start and end demarcations may be different, and may include a gap of zero or low transmission, to further assist the receiver. The user device may transmit a request message to the base station, requesting that demarcations be applied to the user's downlink messages, and declining the redundant DCI alert messages, thereby saving further energy and network overhead.

A method and a terminal device for resource configuration in D2D communications includes performing, by a terminal device, resource sensing on at least one carrier based on a first parameter set to obtain an available resource set on the at least one carrier. A resource in an available resource set on each carrier can be used to transmit a target service. The method also includes reporting, by the terminal device, information about the available resource set on the at least one carrier to a network device. The information about the available resource set is used for the network device to determine a target resource for transmitting the target service. Therefore, the terminal device performs resource sensing and reports the obtained available resource set, so that the network device can allocate an appropriate transmission resource to the terminal device based on the information about the available resource set, thereby reducing interference.

Methods, systems, and devices for wireless communications are described. In some systems, a first user equipment (UE) may operate in accordance with a multi-user (MU) multiple input-multiple output (MIMO) communication mode and may communicate with multiple other UEs over a same physical sidelink shared channel (PSSCH) resource. In some implementations, the first UE may transmit an indication of an MU-unicast mode for multiple sidelink transmissions to the multiple other UEs and may transmit the multiple sidelink transmissions to the multiple other UEs over the same PSSCH resource. In such implementations, the multiple other UEs may select physical sidelink feedback channel (PSFCH) resources to transmit feedback associated with the multiple sidelink transmissions in accordance with a PSFCH resource selection procedure associated with the MU-unicast mode. In accordance with the PSFCH resource selection procedure, the multiple other UEs may each select different PSFCH resources for their respective feedback transmissions.