Abstract: Systems and methods for adapting a timer(s) for a satellite-based radio access network are disclosed. Embodiments of a method performed by a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method performed by a wireless device comprises obtaining a value to be used to offset, extend, and/or scale one or more timers related to the satellite-based radio access network relative to values for non-satellite-based radio access networks. The method further comprises utilizing the value to offset a start of one or more timers, extend one or more timers, and/or scale one or more timers and performing one or more actions based on the one or more offset timers, the one or more extended timers, and/or the one or more scaled timers. Embodiments of a method performed by a base station and corresponding embodiments of a base station are also disclosed.

Abstract: A wireless communication device is operated to transmit information on a random access channel of a network node. Operation involves determining a first transmit power level for a transmission of the information, and selecting a first transmission time for the transmission of the information, wherein the selected first transmission time is determined by a number drawn from a first contention window, and wherein the selected first transmission time corresponds to a first amount of time delay that must elapse before transmission of the information occurs. The information is transmitted at the selected first transmission time, at the first transmit power level. When the transmitted information was not successfully received by the network node, a size of a second contention window is determined based on a size of the first contention window and on the first transmit power level.

Abstract: A network node of a wireless communication network provides information to a User Equipment (UE) that allows the UE to adapt it radio measurements with respect to the network, to account for “link changes.” Link changes are service-link and/or feeder-link changes arising from motion by the satellite(s) included in the Radio Access Network (RAN) portion of the network. The UE uses the provided information to adapt its radio measurements in conjunction with the link changes. Among the several advantages of accounting for satellite link changes in the manner contemplated are any one or more of reduced signaling going between the UE and the network, reduced battery consumption at the UE, mitigation of the effects of the link changes on the radio measurements, avoidance of spurious measurements, and an effective “automation” of the timed changeover by the UE to new measurement configurations, coincident with the occurrence of link changes.

Abstract: A wireless communication device (11) maintains, on a first channel, a radio link to a further wireless communication device (10). The wireless communication device (11) sends, to the further wireless communication device (11), an indication that the wireless communication device supports multi-link operation. Further, the wireless communication device (11) receives a request from the further wireless communication device (10). In response to the request, the wireless communication device (11) utilizes the multi-link operation to perform at least one measurement on a second channel while maintaining the radio link to the further wireless communication device (10). Further, the wireless communication device (11) sends, to the further wireless communication device, one or more measurement reports representing the at least one measurement.

Abstract: A wireless device, UE, in a communication network receives satellite positioning information and a list of a plurality of different types of measurements to perform to find a public land mobile network, PLMN, to select. The UE performs the plurality of different types of measurements on a frequency associated with a found PLMN to generate a plurality of measurement results. The UE determines, based on the plurality of measurements results, whether a high-quality indication should be provided to a non-access stratum, NAS. Responsive to determining that the high-quality indication should be provided, the UE provides the high quality indication and an identification of the found PLMN to the NAS.

Abstract: Embodiments of a method performed by wireless device are disclosed. In one embodiment, a method performed by a wireless device comprises receiving, from a wireless access point, information that indicates transmission times of one or more upcoming trigger frames (TFs). The method further comprises performing one or more actions based on the information that indicates the transmission times of the one or more upcoming TFs. In this manner, by knowing the transmission times of the one or more upcoming TFs, the wireless device is able to decide not to contend for the medium when it knows that it can fulfil traffic latency requirements (e.g., transmit uplink data within the required latency limit) by waiting for the upcoming TF(s). Corresponding embodiments of a wireless device are also disclosed. Embodiments of a wireless access point and methods of operation thereof are also disclosed.

Abstract: A method (1000) performed by a wireless device (110) includes obtaining (1002) location information associated with the wireless device and/or ephemeris data for one or more satellite cells. The wireless device receives (1004) a measurement configuration to measure reference signals from the one or more satellite cells. The measurement configuration includes at least one measurement window. The wireless device determines (1006) whether to select a measurement window for the one or more satellite cells based on the location information associated with the wireless device and/or ephemeris data of the one or more satellite cells.

Abstract: The present disclosure provides a method (1300) in a network device. The method (1300) includes: determining (s1310) a RACH configuration according to at least one random access procedure, wherein the RACH configuration comprises a preamble mapping indication indicating mapping of RACH preambles to SSBs and a SSB mapping indication indicating mapping of SSBs to ROs; transmitting (s1320) the RACH configuration; and receiving (s1330) a RACH preamble which is transmitted according to the RACH configuration from a terminal device.

Abstract: A method performed by a first network node (101) for enabling a second feeder link (132) to be established between a second network node (102) and an airborne or orbital communication node (110) in non-terrestrial communications network (100) to handle wireless devices (121) being served by the airborne or orbital communication node (110) is provided. The first network node (101) is handling the wireless devices (121) served by the airborne or orbital communication node (110) over a first feeder link (131) between the first network node (101) and the airborne or orbital communication node (110). The method comprises determining (701) that the wireless devices served by the airborne or orbital communication node (110) are to be handled by the second network node (102) over the second feeder link (132). Also, the method comprises initiating (702) the second feeder link (132) to be established between the second network node (102) and the airborne or orbital communication node (110).

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for random access resource mapping in a non-terrestrial network (NTN). According to an embodiment, the method implemented at a network node in the NTN includes determining at least a first synchronization signal (SS)/physical broadcast channel (PBCH) block, SSB, group having one or more SSBs and a second SSB group having one or more SSBs; mapping a respective number of random access resources to the one or more SSBs in the first SSB group and the one or more SSBs in the second SSB group separately; and transmitting configuration information indicating the mapping of the respective number of random access resources to the one or more SSBs in the first SSB group and the one or more SSBs in the second SSB group.

Abstract: According to some embodiments, a method performed by a wireless device for cell selection or reselection in a non-terrestrial network (NTN) comprises determining whether to perform one or more cell selection or reselection measurements based on a cell selection or reselection criteria. The cell selection or reselection criteria is based on a signal quality of a serving cell and a relationship between the wireless device and a satellite or spot beam of the NTN. Upon determining that the cell selection or reselection criteria for performing measurements is satisfied, performing the one or more cell selection or reselection measurements.

Abstract: A first wireless device (WD) configured to communicate with a second WD is provided. The first WD is configured to, and/or includes a radio interface and/or includes processing circuitry configured to receive a request for a communication measurement, perform the communication measurement based at least on the received request, and transmit a measurement report. The measurement report includes at least the performed communication measurement. Methods and other apparatuses are also disclosed.

Abstract: An access point (10) of a wireless communication system contends for access to a medium. In response to gaining access to the medium, the access point (10) reserves a transmission opportunity, TXOP, on the medium. The access point (10) cooperates with one or more further access points (10) of the wireless communication system by sharing the TXOP based on spatial reuse of at least some radio resources of the TXOP for transmission of multiple physical protocol data units, PPDUs, by each of the access points (10). Further, the access point (10) coordinates transmissions of acknowledgment information for each of the multiple PPDUs within the TXOP.

Abstract: A method performed by a network node (160) includes serving a cell area by a first physical network node for a first time duration. The first physical network node uses an identifier of a logical network node. For a second time duration, the cell area is served by a second physical network node. The second physical network node uses the identifier of the logical network node. The first physical network node serves the cell area with a first frequency band and the second physical network node serves the cell area with a second frequency band.

Abstract: Systems and methods of the present disclosure are directed to a method performed by a wireless device for Cross-Link Interference (CLI) reporting. The method includes storing a CLI measurement. The method includes receiving a request to report the CLI measurement from a network node involved in a handover procedure for the wireless device. The method includes transmitting a CLI measurement report to the network node based on the CLI measurement.

Abstract: A method, system and apparatus are disclosed. According to one or more embodiments, a network node configured to communicate with a wireless device (WD) is provided. The network node is configured to, and/or includes a radio interface and/or includes processing circuitry configured to transmit a measurement request for the wireless device to perform a measurement on a non-operating channel where the measurement request includes an indication that the network node is configured to prioritize data traffic for the wireless device. The processing circuitry and/or radio interface is further configured to optionally receive a message associated with the measurement request where the message indicates whether the measurement associated with the measurement request was performed.

Abstract: According to some embodiments, a method performed by a wireless device capable of operating in dual connectivity with a first network node in a first cell group and a second network node in a second cell group comprises: receiving a measurement configuration message that includes an indication to perform cross-link interference (CLI) measurements; detecting radio link failure (RLF) with the first cell group; determining that CLI measurements are available; including CLI measurement information in a first cell group failure report; and transmitting the first cell group failure report to the second network node.

Abstract: A wireless device (AP1) contends for access to a medium. In response to gaining access to the medium, the wireless device (AP1) reserves a TXOP on the medium. Further, the wireless device (AP1) configures a set of resources (501, 502, 503) in the reserved TXOP to be available to at least one other wireless device (AP2, STA31) for one or more transmissions of data (D) arriving after beginning of the TXOP.

Abstract: A system includes a device configured to be connected to a first node and a second node. The first and second nodes are located in different entities in a wireless network, a controller configured to cause initiation and establishment of a multi-link connection. The multi-link has at least two links connecting the device with the first and/or the second node. Each link is configured to communicate with the first node and/or the second node. The first node is configured to transmit a request for establishing the connection to the second node. The second node is configured to cause and transmit a confirmation for establishing the connection to the first node and/or the device at reception of the request. The first node and second nodes, at establishment of the connection, are configured to function as a node entity associated with the device and to cause communication with the device over the connection.

Abstract: Systems and methods are disclosed for random access in a wireless communication system such as, e.g., a wireless communication system having a non-terrestrial (e.g., satellite-based) radio access network. Embodiments of a method performed by a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method performed by a wireless device for random access comprises performing an open-loop timing advance estimation procedure to thereby determine an open-loop timing advance estimate for an uplink between the wireless device and a base station. The method further comprises transmitting a random access preamble using the open-loop timing advance estimate. In this manner, random access can be performed even in the presence of a long propagation delay such as that present in a satellite-based radio access network. Embodiments of a method performed by a base station and corresponding embodiments of a base station are also disclosed.