Some aspects described herein relate to configuring user equipment (UE) for transmitting sidelink communications. A sidelink grant for transmitting sidelink communications over multiple contiguous subchannels across multiple resource block (RB) sets in a slot can be received. A listen-before-talk (LBT) procedure can be performed over the multiple RB sets in the slot. Sidelink communications can be transmitted to one or more other UEs in the multiple contiguous subchannels across at least a subset of the multiple RB sets in the slot for which the LBT procedure succeeds

A communication apparatus of a wireless LAN complying with the IEEE802.11 standard series determines, by executing CCA, whether a signal can be transmitted in a frequency channel to be used, transmits RTS in response to determination that the signal can be transmitted in the frequency channel, transmits data to a partner apparatus in a case where CTS is received from the partner apparatus in response to the RTS, and controls to use, in a case where the RTS is transmitted during a predetermined period after the communication apparatus shifts from a first state in which a signal cannot be received to a second state in which a signal can be received in the frequency channel, second transmission power lower than first transmission power used in a case where the RTS is transmitted during a period different from the predetermined period.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may belong to a group of UEs and may identify a channel sensing schedule for the group of UEs. The channel sensing schedule may include sensing windows and resource reservation windows corresponding to each UE of the group of UEs. The channel sensing schedule may establish a pattern for the sensing windows and resource reservation windows such that the UEs may take turns performing sensing and resource selection. During a sensing window associated with the UE, the UE may sense a set of resources of a sidelink communication link to identify candidate resources. The UE may transmit, to the other UEs of the group, a message indicating results of the sensing, such as an indication of resource reservations, candidate resources, or the like. The other UEs may identify and select candidate resources based on the message.

Support of coexistence of wireless transmission equipment in shared wireless medium environments is disclosed, which is applicable to various types of wireless transmission equipment. For instance, a wireless power transmission system (WPTS) delivers power to wireless power receiver clients via transmission of wireless power signals using one or more frequencies and/or channels within shared wireless medium environments in which other wireless equipment is operating, such as access points and stations in wireless local area networks (WLANs). The WPTS is configured to co-exist with the operations of the other wireless equipment within the shared wireless medium environment by adapting its transmission operations to utilize frequencies or channels that do not interfere with other equipment and/or implementing co-channel and shared channels operations under which access to channels is implemented using standardized WLAN protocols such as PHY and MAC protocols used for 802.11 (Wi-Fi™) networks.

In a 802.11be multi-AP collaboration, collaborated BSSs obtaining shared resource from a collaborator AP. Co-channel interferences arise from misalignment of PHY preambles between the various collaborated and collaborator BSSs. This misalignment results from the independency of each BSSs during the shared TXOP. To overcome this deficient situation, a synchronization frame is sent by the collaborator AP at a predefined sync time over the shared frequency bands, even if the collaborator AP does not belong to the BSSs operating on these bands. The predefined sync time may derive from the UL Length field specified in the initial trigger frame. Consequently, all the stations are ready to receive the synchronization frame and therefore to start again their MU or P2P transmission a SIFS after the synchronization frame. PHY preambles in adjacent channels are therefore fully aligned.

A communication system, including: a plurality of communication devices communicating with each other by use of RF resources; a resource controller configured to control the RF resources; and an interference detector configured to detect an interferer and to provide information describing the interferer to the resource controller, wherein the resource controller controls the RF resources of the plurality of communication devices taking into account the information describing the interferer.

Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) to determine a rate-matching scheme or a feedback scheme for overlapping downlink transmission resources. A collision handling scheme may enable the UE to de-rate match a second, higher priority downlink shared channel independent of another rate-matching pattern or indicator for other shared channels, such as a first, overlapping downlink shared channel. The UE may determine to de-rate match the second channel around resources indicated within control signaling or higher-layer signaling associated with the second channel. The collision scheme may provide for the UE to generate an acknowledgement bit for feedback for one or more portions of the first channel that are preempted by the second channel and generate other feedback for non-preempted portions. A base station may keep track of preempted resources and may retransmit preempted portions of the first channel.

In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.

According to an example aspect of the present invention, there is provided a method, comprising: occupying a first channel for data transmission between a first multi-link device (MLD) and a second MLD for a first channel occupation period (COP), transmitting a measurement request to a subset of MLDs to perform channel measurements on at least two channels during the first COP, transmitting at least one data message to the second MLD during the first COP, receiving, after transmission of the at least one data message, at least one channel status report comprising channel status information from at least one MLD of the subset of MLDs during the first COP, and selecting a channel, among the at least two channels, for data transmission between the first MLD and an MLD for a second COP, wherein the selection is based at least partly on the channel status report.

Some demonstrative embodiments include apparatuses, systems and/or methods of communicating a Single-User (SU) Multiple-Input-Multiple-Output (MIMO) transmission. For example, a first wireless communication station may be configured to transmit a Request to Send (RTS) to a second wireless communication station via a plurality of SU MIMO Transmit (Tx) sectors of the first wireless communication station, the RTS to establish a Transmit Opportunity (TXOP) to transmit an SU-MIMO transmission to the second wireless communication station, a control trailer of the RTS including an indication of an intent to transmit the SU-MIMO transmission to the second wireless communication station; and to transmit the SU-MIMO transmission to the second wireless communication station, upon receipt of a Clear to Send (CTS) from the second wireless communication station indicating that the second wireless communication station is ready to receive the SU-MIMO transmission.