Abstract: A method, system and apparatus are disclosed for downlink out-of-band interference mitigation. In one embodiment, a network node is configured to perform out-of-band (OOB) null steering and in-band null steering toward at least one direction; and use a constant amplitude precoder to align at least one radiation pattern associated with the OOB and in-band null steering. In one embodiment, a method implemented in a network node includes performing out-of-band, OOB, null steering and in-band null steering toward at least one direction; and using a constant amplitude precoder to align at least one radiation pattern associated with the OOB and in-band null steering.

Abstract: A network node is configured to receive and/or estimate respective precoder information for a plurality of wireless devices. A respective orthogonal projection matrix is determined for each of the plurality of WDs based at least in part on the precoder information of all other WDs of the plurality of WDs. A respective modified precoder matrix is determined for each of the plurality of WDs based at least in part on the respective orthogonal matrix and precoder information for each WD of the plurality of WDs. A composite precoder matrix is determined based at least in part on the modified precoder matrices for each of the plurality of WDs. A transmission beam shape is then determined for use in transmission to at least one of the plurality of WDs based on the composite precoder matrix.

Abstract: A method of operating a distributed unit, DU, of a radio network node in a wireless communication system is provided. The method includes obtaining a value of an antenna subarray gain for a radio unit, RU, connected to the DU, estimating a transmission gain associated with a first downlink channel of the RU based on the antenna subarray gain, and calculating an effective isotropically radiated power, EIRP, level for the first downlink channel based on the estimated transmission gain of the first channel. The method further includes adaptively limiting EIRP of downlink signals transmitted by the RU on the first downlink channel based on the estimated transmission gain.

Abstract: A method and a system of maintaining data connectivity between a mobile device during traversal of a pedestrian facility and a server computing device via a set of intermediary communication devices.

Abstract: Embodiments of a method and network node for managing wireless devices (WDs) in a network are disclosed. In some embodiments, the method comprises grouping the plurality of WDs into clusters based at least in part on correlations between channels of the WDs. The method also includes determining beam forming weights for each cluster, the grouping into clusters and the determining of beam forming weights being performed to minimize a total transmit power to the plurality of WDs.

Abstract: A method of operating a radio network node in a wireless communication system includes adaptively limiting effective isotropically radiated power, EIRP, of downlink signals transmitted by the radio network node on different physical channels. Radio network nodes that adaptively limit EIRP of downlink signals transmitted by the radio network node on different physical channels are also described.

Abstract: A network node is configured to receive and/or estimate respective precoder information for a plurality of wireless devices. A respective orthogonal projection matrix is determined for each of the plurality of WDs based at least in part on the precoder information of all other WDs of the plurality of WDs. A respective modified precoder matrix is determined for each of the plurality of WDs based at least in part on the respective orthogonal matrix and precoder information for each WD of the plurality of WDs. A composite precoder matrix is determined based at least in part on the modified precoder matrices for each of the plurality of WDs. A transmission beam shape is then determined for use in transmission to at least one of the plurality of WDs based on the composite precoder matrix.

Abstract: A method and a system of maintaining data connectivity between a mobile device during traversal of a pedestrian facility and a server computing device via a set of intermediary communication devices.

Abstract: A method and system for facilitating an access request. The method may be executed in the processor of a server computing device and comprises receiving, at a memory of the server computing device, the request for access, the request for access performed using a security device at an access point device communicatively coupled to the server computing device, localizing a mobile computing device having a preestablished association with the security device, and enabling the request for access when a position of the mobile computing device as determined from the localizing is within a predetermined threshold distance from a location of the access point device.

Abstract: A method and a system of maintaining data connectivity between a mobile device during traversal of a pedestrian facility and a server computing device via a set of intermediary communication devices.

Abstract: A method and a system of maintaining data connectivity between a mobile device during traversal of a pedestrian facility and a server computing device via a set of intermediary communication devices.

Abstract: A method and system for facilitating an access request. The method may be executed in the processor of a server computing device and comprises receiving, at a memory of the server computing device, the request for access, the request for access performed using a security device at an access point device communicatively coupled to the server computing device, localizing a mobile computing device having a preestablished association with the security device, and enabling the request for access when a position of the mobile computing device as determined from the localizing is within a predetermined threshold distance from a location of the access point device.

Abstract: Methods and systems of broadcasting crowd-sourced localization data from a mobile device are described. The method, executed in the processor of the mobile device, comprises localizing the mobile device by determining an estimated position of the mobile device based on fingerprint data; broadcasting, at a first broadcast power level, a localization data packet that includes the estimated position to one or more peer mobile devices; and continuing the broadcasting at one of a lower broadcast power level than the first broadcast power level and a higher broadcast power level than the first broadcast power level based on a degree of accuracy of the estimated position.

Abstract: A method and system for detecting a transition in positioning state of a mobile device relative to an indoor facility. The method, executed in a processor of the mobile device, comprises monitoring, based at least in part on global positioning system (GPS) data, for a positioning state of the mobile device as one of an indoor and an outside location relative to an indoor facility, determining a set of probabilistic weightings for respective ones of ambient data and the GPS data, the ambient data including one or more of received signal strength data, signal connectivity data, magnetic data, ambient lighting data and barometric data, and detecting a transition in positioning state of the mobile device from one of the indoor and the outside locations to another of the indoor and the outside locations when a weighted sum value based at least in part on the set of probabilistic weightings is one of above and below a predetermined state transition value.

Abstract: A method and system localizing a mobile device along a pedestrian route traversed in an indoor area, the mobile device including a processor and a memory.

Abstract: A method and system for facilitating an access request. The method may be executed in the processor of a server computing device and comprises receiving, at a memory of the server computing device, the request for access, the request for access performed using a security device at an access point device communicatively coupled to the server computing device, localizing a mobile computing device having a preestablished association with the security device, and enabling the request for access when a position of the mobile computing device as determined from the localizing is within a predetermined threshold distance from a location of the access point device.

Abstract: A method and system of adjusting a radio frequency (RF) broadcast signal power level in a crowd-sourced mobile device localization system in a pedestrian area.

Abstract: Methods and Systems of adjusting a radio frequency (RF) broadcast signal power level in a crowd-sourced mobile device localization system in a pedestrian area are described. In an example, a first mobile device and a second mobile device may be localized to establish a first estimated position a second estimated position, respectively. The localizing may be based on fingerprint data of the pedestrian area, wherein a localization data packet including the first estimated position broadcasted by the first mobile device at a first broadcast power level and another localization data packet including the second estimated position broadcasted by the second broadcast device at a second broadcast power level may be received.

Abstract: A method and system localizing a mobile device along a pedestrian route traversed in an indoor area, the mobile device including a processor and a memory.

Abstract: A method and system of broadcasting crowd-sourced localization data from a mobile device within a pedestrian area. The method, executed in the processor of the mobile device, comprises localizing the mobile device by determining an estimated position of the mobile device within the pedestrian area based on accessing fingerprint data of the pedestrian area, broadcasting, at a first broadcast power level, a localization data packet that includes data of the estimated position to one or more peer mobile devices within the pedestrian area, determining a confidence level indicative of a degree of accuracy for the estimated position, and continuing the broadcasting at one of a lower and a higher broadcast power level than the first broadcast power level when it is determined that the confidence level is one of above and below a threshold confidence level.