Abstract: The solution presented herein manages the feedback from multiple transmission points by reducing the amount of feedback provided by one or more slave nodes to a controlling master node. To that end, methods and apparatus are provided that determine whether there is a need for the slave node to provide feedback to the master node. Responsive to this determination, the methods and/or apparatus operate the master and/or slave node in a reduced feedback mode that manages the feedback provided by the slave node to the master node such that an amount of feedback provided by the slave node when operating in the reduced feedback mode is less than an amount of feedback provided by the slave node when operating in a full feedback mode.

Abstract: The present embodiments disclose a network node (400); a method thereof; a user equipment (700) and a method thereof. The method performed by the network node (400) comprises: selecting (301) a cell-specific RS process; selecting (302) a beam scan pattern; selecting (303) 5 a UE (799); transmitting (304) a cell specific RS associated to the cell-specific RS process, to the selected UE (700); configuring (305) the UE with the selected cell-specific RS process and receiving (306) a beam report from the UE (700).

Abstract: Recovery control is provided for recovering data packet flow control between a network node and a radio base station over a radio network interface. The base station communicates with at least one user equipment, UE, over a radio interface and measures information relating to a data transmission rate over the radio interface and an amount of a downlink packet queue in the base station associated with the UE communication. In one embodiment, the base station sends at least some of the measurement information to the network node. A process controller in the network node processes the measurement information to determine a desired amount to be stored in the downlink packet queue. The process controller determines a commanded bit rate to transmit data from the network node to the downlink packet queue based on the determined desired amount and transmits data to the radio base station in accordance with the commanded bit rate.

Abstract: Embodiments herein relate to a method performed by a first communication node (110; 121) for determining the position of a second communication node (122) in a wireless communications network (100). The first communication node (110; 121) transmits a timing measurement message to the second communication node (122) as a beamformed transmission based on channel sounding feedback information received from the second communication node (122). The first communication node (110; 121) also receives an acknowledgement message from the second communication node (122) for the timing measurement message in the beamformed transmission. Furthermore, the first communication node (110; 121) determines the position of the second communication node (122) at least partly based on a transmission time of the timing measurement message and a reception time of the acknowledgement message. Embodiments of the first communication node (110; 121) are also described.

Abstract: A method for multi-path packet scheduling in a wireless communication system comprises collecting of measurements of queue state information about buffers of a plurality of transmit nodes. A rate budget is calculated based on the collected measurements of queue state information. The rate budget comprises commanded bit rates and/or data volumes for each transmit node for a subsequent sampling period. Data representative for the rate budget is provided from the packet-flow controller node over a packet scheduling interface to a packet scheduler node. Packets to be sent to each of the plurality of transmit nodes in a subsequent sampling period are scheduled depending on the received rate budget. Nodes for multi-path packet scheduling in a wireless communication system are also disclosed.

Abstract: A method (300) for indoor positioning or navigation comprises obtaining (310) a set of features which describe characteristics of a place in an indoor space. This obtained set of features may describe characteristics of a place at which a wireless device is located, a place targeted by a wireless device as a destination, or a place targeted by a wireless device to avoid. Regardless, the method (300) further comprises comparing (320) the obtained set of features to addresses of respective indoor blocks into which the indoor space is spatially divided. Each indoor block in this regard is identified as being located at an address formed from a set of features which describe characteristics of the indoor block. The method (300) also comprises determining (330), based on the comparing, which of the indoor blocks corresponds to the place in the indoor space.

Abstract: A method for radio communication between a transmitting node and receiving nodes comprises obtaining (S1) of directions from the transmitting node to the receiving nodes and antenna gains needed for each direction. A beam forming solution having a high gain in the directions of a set of receiving nodes and with antenna gains adapted to the need of the link is obtained (S2). User data to be transmitted to the receiving nodes is obtained (S3). The user data is overlay-coded (S4) by a code-domain overlaid code and/or a frequency-domain overlaid code, separately for each respective receiving node. The overlaid-coded user data is combined (S5) into at least one combined signal stream. Analogue beamforming, hybrid beamforming or constrained beamforming is performed (S6) on the combined signal stream(s) according to the beam forming solution. The beamformed data is transmitted (S7) from the transmitting node to the receiving nodes.

Abstract: A wireless device and a method performed therefore are provided for reporting and logging an event, the wireless device being operable in a wireless communication network. The method comprises determining (110) that an event is to be logged and/or reported; and determining (120) if the location of the wireless device is a known location or is the same location as the last time the event was logged and/or reported. The method further comprises, when the location of the wireless device is a known location or the same location as the last time the event was logged and/or reported: logging (130) and reporting to a network node, according to an enhanced reporting and logging functionality.

Abstract: Mobile broadband traffic has been exploding in wireless networks (300) resulting in an increase of interferences and reduced operator control. Networks (300) are also becoming more heterogeneous putting additional demand in interference management. There is currently no support for signalling of neighbor cell interference gleaned from soft and softer handover powers. Thus, there are no algorithms that accounts for and/or estimates interference impact factors between neighboring cells based on neighbor cell interference estimates gleaned from soft and softer handover power. To address these and other issues, techniques to accurately predict/estimate neighbor cell interferences that accurately accounts for own cell powers, soft handovers, softer handovers, neighbor cell interferences, and remaining neighbor cell interferences are presented. The described techniques estimate coupling effects of scheduling decisions in one cell to surrounding cells. In this way, interferences in the network (300) can be managed.

Abstract: A multi-point transmission system comprising a plurality of slave nodes (300) for transmitting data to a wireless receiver is described herein. An outer feedback loop and a plurality of inner feedback loops (100) connecting the plurality of slave nodes (300) to a master node (200) controls the timing skew of each slave node (300) using measurements provided by the slave nodes (300) to substantially synchronize the receipt of the transmitted data at the wireless receiver. In so doing, the solution presented herein provides improved multi-point control for any number of transmission points, which improves capacity, and solves the potential flow control problems associated with ultra-lean transmissions.

Abstract: A method performed by radio network node for enabling channel handling of a channel between a wireless device and the radio network node in a wireless communication network. The channel is defined in continuous time and a sampling rate of the channel is non-uniform. The radio network node predicts a channel gain using a first sampling descriptor indicating a first momentary sampling frequency and a second sampling descriptor indicating a second momentary sampling frequency, wherein the first sampling descriptor operates on a different segment of continuous time than the second sampling descriptor. The predicted channel gain enables channel handling such as channel estimation and link adaptation.

Abstract: Methods, nodes, a wireless communication device and computer programs to be usable in association with controlling transmission of at least one data unit via a first link between a first access node and a wireless communication device and via a second link between the first access node and the wireless communication device via the second access node are described. In one embodiment, the method may be performed by the first access node and may comprise receiving first transmission delay information indicative of a transmission delay of the first link and/or second transmission delay information indicative of the second link, and controlling the transmission of said data unit based on the first and/or second transmission delay information.

Abstract: It is disclosed a base station of a cell having at least a first and a second antenna sector, where the base station is distributed in terms of location and a method performed in said base station for determining an uplink power control target for a UE that is connected to the first antenna sector. The method comprises estimating (42, 504), in the at least the first and the second antenna sectors, a thermal noise floor; and determining (44, 516) the uplink power control target based on a maximum of the estimated thermal noise floors in all of the at least the first and the second antenna sectors. The method improves uplink performance of cells with antenna sectors having different receiver sensitivity, and provides enhanced observability of UEs for cells extending over multiple base stations.

Abstract: A scheduling function node (SF) uses the beams available for each WCD to avoid scheduling a transmission that would imply that interference between WCDs is created. In the simplest form such a scheme could be described as follows: (1) avoid scheduling transmission in directions that coincide between WCDs (here, a direction would typically be represented by both azimuth and elevation angles) and (2) when the available beam directions do not allow interference avoidance, accounting for this fact and exploiting other types of orthogonality in the scheduling of time-frequency resources.

Abstract: Methods, devices and computer programs for determining new transmit directions to use for beamformed transmissions in case the link quality of an existing direction falters. A transmitting communication device and a receiving communication device cooperate via a beam tracking procedure to determine a new suitable transmit direction to use for upcoming beamformed transmissions. Information relating to the beam tracking procedure is communicated over an existing link that enables communication between the transmitting and receiving communication devices. The receiving communication device provides the transmitting communication device with information about a beam scan performed in order to detect tracking beams transmitted by the transmitting communication device. This information allows the transmitting communication device to determine suitable transmit directions to use.

Abstract: At least one of location-specific downlink properties and location-specific uplink properties of a radio link are determined and fused to obtain a location-specific fingerprint of the radio link associated with a location of a mobile device.

Abstract: A network node (200) a wireless device (202) and methods therein, for configuring a wireless link (204) to be used for controlling a process at a wireless device (202) involving communication of control signals and feedback signals over the wireless link (204). The network node (200) sends a request message (2:2) to the wireless device (202) comprising a request for performance requirements of the wireless link (204) needed for the communication of control signals and feedback signals. The wireless device (202) determines (2:3) the performance requirements based on at least one of: 1) characteristics of the process, and 2) requirements for how the process is controlled. The wireless device (202) then sends (2:4) a response message comprising the performance requirements to the network node (200) which configures (2:5) the wireless link (204) so that the performance requirements of the wireless link are fulfilled.

Abstract: Embodiments herein relate to a method performed by a first access point (12) out of at least two access points for handling communication of a wireless device (10) served by the first access point (12) in a wireless communication network (1). The first access point (12) coordinates communication with a second access point (13) out of the at least two access points in the wireless communication network (1), which coordination is performed over a backhaul connection between the first access point (12) and the second access point (13). The first access point determines a delay of the backhaul connection to the second access point (13). The first access point (12) schedules a transmission to or from the wireless device (10) based on the determined delay, wherein the transmission from or to the wireless device (10) is delayed.

Abstract: A technique for sending data packets in a radio access network (304) including a master base station (308) and a secondary base station (310) for providing multi-connectivity to a user equipment (306) is described. As to a method aspect of the technique, at least one first data packet to be transmitted through the secondary base station (310) to the user equipment (306) is sent via a first link (314). A feedback including an acknowledgment for at least one second data packet transmitted through the secondary base station (310) to the user equipment (306) is received via a second link (316). An indicator for the at least one first data packet is delayed by a delay time depending on the first link (314) and the second link (316). At least one further data packet to be transmitted through the secondary base station (310) to the user equipment (306) is sent via the first link (314).

Abstract: A localization approach based on cable length detection. In one aspect, a method performed by a positioning system for determining the location of a mobile communication device (MCD) is provided. In some embodiments, the method includes the positioning system determining a cable length value representative of the length of the cable connecting a base station to a radio head serving the MCD. The positioning system then determines a location of the MCD based on the determined cable length.