There is provided mechanisms for triggering uplink PDU duplication from a user equipment. A method is performed by a network node. The method comprises configuring the user equipment with an RLC URLLC mode. According to the RLC URLLC mode the user equipment is configured with an RLC trigger for the user equipment to perform uplink PDU duplication for an URLLC service.

A terminal includes: a receiver configured to receive a signal from a first terminal and a second terminal in a resource pool; a controller configured to detect overlap between a first reserved resource based on a signal received from the first terminal and a second reserved resource based on a signal received from the second terminal; and a transmitter configured to transmit information relating to resource selection to the first terminal via a collision notification channel, in response to the controller detecting the overlap, wherein when the first reserved resource includes a plurality of resources, the controller determines which collision notification channel associated with a resource of the plurality of resources to use for transmitting information relating to the resource selection.

A terminal includes: a receiver configured to receive a signal from a first terminal and a second terminal in a resource pool; a controller configured to detect overlap between a first reserved resource based on a signal received from the first terminal and a second reserved resource based on a signal received from the second terminal; and a transmitter configured to transmit information relating to resource selection to the first terminal via a collision notification channel, in response to the controller detecting the overlap, wherein when the first reserved resource includes a plurality of resources, the controller determines which collision notification channel associated with a resource of the plurality of resources to use for transmitting information relating to the resource selection.

Disclosed are a resource indication method and a terminal device. The method comprises: receiving first indication information, wherein the first indication information is used for indicating the time domain resource and/or the frequency domain resource of preemption transmission, the minimum granularity of the time domain resource is a symbol, and the minimum granularity of the frequency domain resource is a subcarrier or a physical resource block; and based on the first indication information, determining the available resource of a first type of service to be transmitted, wherein the available resource of the first type of service is at least part of the time domain resources excluding the time domain resource of the preemption transmission, and/or at least part of the frequency domain resources excluding the frequency domain resource of the preemption transmission.

Various embodiments herein provide techniques to avoid inter-symbol interference during transmission configuration indicator (TCI) state switching in high-speed train (HST) deployments. For example, a gap may be added between the validity of a first TCI state and a second TCI state when switching from the first TCI state to the second TCI state in a high speed scenario (e.g., power class 6). The techniques may be used for communication in New Radio (NR) frequency range 2 (FR2).

One example discloses a method for low-latency (LL) traffic frame communication between WLAN (wireless local area network) devices, including: sending a trigger frame from an access point (AP) configured to allocate a random access resource unit (RA-RU) to a non-access point station (non-AP STA); wherein the RA-RU enables the non-AP STA to transmit its low latency (LL) traffic information; and receiving, from the non-AP STA, an uplink LL traffic frame using the RA-RU that was allocated.

One example discloses a method for low-latency (LL) traffic frame communication between WLAN (wireless local area network) devices, including: sending a trigger frame from an access point (AP) configured to allocate a random access resource unit (RA-RU) to a non-access point station (non-AP STA); wherein the RA-RU enables the non-AP STA to transmit its low latency (LL) traffic information; and receiving, from the non-AP STA, an uplink LL traffic frame using the RA-RU that was allocated.

A method for an access point to schedule obtaining frames from stations connected thereto is provided. Real-time applications provide frames and frame due dates to the stations. The frames and their due dates are stored in respective buffers of the stations. Each station identifies the earliest due date of all its buffered frames and provides the earliest due date to the access point. The access point orders the due dates and schedules the stations according to the order of the due dates. The access point then communicates with the stations according to the schedule and obtains the frames. A WLAN system implementing the method is also provided.

A resource assignment can be received. A first set of time-frequency resources in a subframe can be determined from the resource assignment. A second set of time-frequency resources in the subframe can be determined. The second set of time-frequency resources can be used for a second latency data transmission. The second set of time-frequency resources can overlap with at least a portion of the first set of time-frequency resources. A first latency data transmission in the subframe can be decoded based on the determined first and second set of time-frequency resources. The first latency transmission can have a longer latency than the second latency transmission.

Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a wireless transceiver configured to communicate within a transmit opportunity (TXOP), where the wireless transceiver is further configured to receive a frame indicating a preemption allowance for low latency indication frame transmission from a second wireless device, and a controller configured to control the wireless transceiver to pause or resume data transmission within the TXOP in response to the frame indicating the preemption allowance for low latency indication frame transmission from the second wireless device.