Telefonaktiebolaget Lm Ericsson (publ)

Unwired Planet, LLC

Fredric Carl Kronestedt

Magnus Lundevall

Jari Tapio Vikberg

Mats Buchmayer

G&ouml;ran Malmgren

Junying Liu

Jacob Österling

Emma Wittenmark

Lars Klockar

Tsao-Tsen Chen

Mattias Frenne

Konstantinos Dimou

Kumar Balachandran

Bo Hagerman

Lars Westberg

Gary Boudreau

Jonas B Karlsson

Per Johan Beming

Jawad Manssour

Kimmo Juhani Hiltunen

Magnus C Frodigh

Stephen G Craig

Virgil Cimpu

Peter De Bruin

Sven Harald Ekemark

Mathias Sintorn

Carl Magnus Frodigh

Jonas Lennart Wiorek

Sara Mazur

Gunther Auer

Peter Björkén

Chris Williams

Fredrik Bengt Ovesj&ouml;

Hangkan Gunnar Olofsson

Yngve Kenneth Wallstedt

Henrik Revsbech Dam

Lars Näslund

Anette Borg

John Tomas Dannelind

Lennart Nilsson

Peter BJÖRKÉN

Sven Ekemark

There is provided a method in a first network node (e.g. CBSD) for negotiating AAS antenna pattern and for radio planning. The method comprises: determining () one or more cell shaping parameters; sending () the determined cell shaping parameters to a second network node (e.g. SAS or CxM); receiving () an allocation of resources based on the determined cell shaping parameters. Another method is disclosed as well and may comprise: receiving () an envelope of radio frequency power for maximizing a coverage area, from a second network node (e.g. SAS); determining () a beam pattern based on the received envelope; sending () the determined beam pattern to the second node.

Methods and nodes for negotiating citizens broadband radio service devices active antenna system antenna pattern and radio planning for citizen's broadband radio service band

Embodiments include methods for channel reconfiguration by a network node in a communications network. Such methods include obtaining received signal strength indicator (RSSI) measurements from wireless devices served by the network node at a current channel in a current frequency interval within a current frequency band. the RSSI measurements trigger perform channel reconfiguration to select a new channel for serving the wireless device. the new channel is the current frequency interval in the current frequency band, a new frequency interval in the current frequency band, or a new frequency interval in a new frequency band. The new channel is selected based on RSSI measurements are performed by the network node on one or more of the following: the current channel in the current frequency interval, a different channel in the current frequency interval, or a different channel in the new frequency interval.

Channel reconfiguration in a communications network

Mechanisms are provided for channel reconfiguration in a communications network where shared spectrum from a primary incumbent is used. A method is performed by a network node, which comprises obtaining RSSI measurements on the current channel from wireless devices. The wireless devices are served by the network node at a current channel in a current frequency interval within a frequency band. When the RSSI measurements trigger a need for the network node to perform channel reconfiguration, the network node selects a new channel based on RSSI measurements that it itself performs. The method comprises selecting a new channel in a new or the same frequency interval, in a new or the same frequency band, for serving the wireless devices based on RSSI measurements performed by the network node, and channel reconfiguration for the wireless devices is performed.

Channel reconfiguration in a communications network based on measurements by wireless devices and network node

The present disclosure relates a method performed in a first Radio network node, serving a first service area, of notifying a Core Network node, CN, of a change of service area for a User Equipment, UE. The method comprises detecting that the UE has changed location between the first service area and a second service area served by at least a second Radio network node, wherein the first and second service areas are being associated with a respective service charge, and providing a notification to the Core Network Node informing about the change of service area for the UE, the indication enabling a CN function to change the service charge for the UE.

Method for enabling differentiated charging support

There is provided mechanisms for determining frequency location of a primary cell (PCell) for a wireless device in a carrier aggregation supported communications network having access to a group of low frequency bands and a group of high frequency bands. A method is performed by a network node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a pathloss level between a wireless device served by the communications network and the network node. The method comprises selecting, from the acquired uplink load level and pathloss level, which one of the group of low frequency bands and the group of high frequency bands to place the frequency location of the PCell for the wireless device.

Frequency location of a PCell

There is provided mechanisms for assigning control plane connectivity for a wireless device in a dual connectivity supported communications network. The communications network comprises a first network node supporting a group of low frequency bands and a second network node supporting a group of high frequency bands. A method is performed by a control node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a first pathloss level between the wireless device and the first network node and a second pathloss level between the wireless device and the second network node. The method comprises selecting, from the acquired uplink load level, the first pathloss level, and the second pathloss level, which one of the first network node and the second network node to provide control plane connectivity for the wireless device.

Control plane connectivity for wireless devices

A low power network node (LPN) and a method performed thereby for providing a primary serving cell to a wireless device associated with the low power network node. The wireless communication network also comprises a neighboring network node, wherein the low power network node and the neighboring network node are configured with a first set of frequency bands B' and the low power network node is configured with a second set of frequency bands B&#x2033;. Since the neighboring network node does not use the second set of frequency bands B&#x2033;, the neighboring network node may not cause interference on carriers of the second set of frequency bands B&#x2033;.

Low power node which preferably allocates PCell on carrier in frequency band shared with macro node

The application relates to the selection of cells to form a cell coordination group for which interference management techniques such as COMP are to be applied. The cells to be selected to improve the performance of a UE in terms of throughput or delay are not necessarily the ones which are geographically the closest because in city environments shadowing effects of buildings exist. Thus, choosing the closest cells for coordinated interference management will not be a good solution in many cases. Hence, there is a need to develop another method and mechanism for more accurately generating a cell coordination group for interference management activities. This problem is solved by the application in that either the downlink interference toward the UE from the neighboring cells is estimated or the neighbor cells listen for the UE and then predict the downlink interference. Furthermore, the algorithm starts with an initial list of cells comprising the most likely handover candidates. Furthermore, cells are eliminated if the interconnection link to the serving base station is not fast enough for the interference reducing algorithms.

Defining cell coordination group to which interference management techniques such as comp can be applied

It is presented a method for controlling remote radio head contribution by a plurality of remote radio heads in at least one combiner. The method is comprises: obtaining a number of available baseband processor devices for uplink processing; connecting uplink signals from a set of remote radio heads in each one of the combiners; determining a respective radio channel measurement for uplink radio communication from a first wireless device; repeating the connecting and determining until radio channel measurements have been determined for all of the plurality of remote radio heads; selecting a first subset of at least one remote radio head from the plurality of remote radio heads for receiving radio communication from the first wireless device; and reducing an uplink contribution from at least one remote radio head, of the plurality of remote radio heads, which is not part of the first subset.

Combining uplink radio signals

It is disclosed a method and a network node () for selecting a candidate cell () to be combined with a target cell () having a radio equipment () connected to a radio equipment controller (). The method comprises identifying () at least two candidate cells where a time delay in communication between any two of: said at least two candidate cells and the target cell, is below a pre-determined time threshold, selecting () the one () having the highest connection activity with the target cell; and combining () the selected candidate cell () and said target cell () into a logical cell. Embodiments of the present invention have the advantage that the logical cells being defined provides have a high overall mobile network connectivity improvement.

Defining logical cells

A Network Node and a method therein for controlling uplink power control are provided. The method comprises collecting () measurement reports from UEs. The method comprises creating () clusters of low power RBS(s) and macro RBS(s), wherein each cluster comprises one low power RBS and at least one macro RBS; and identifying () the macro RBS with the lowest pathloss for those UEs connected to the low power RBS and the level of the pathloss. The method comprises determining () an interference level in the low power RBS caused by UEs connected to the macro RBS for those UEs connected to the macro RBS. Further, the method comprises selecting () uplink power control setting for the low power RBS based on the size of the pathloss associated with the identified macro RBS and the interference level in the low power RBS caused by UEs being connected to the macro RBS.

Network node and a method therein for controlling uplink power control

A method is described performed by a network node for supporting cell selection of user equipments, UEs, in a wireless communication network. The wireless communication network comprises low power nodes, LPN (), and high power nodes, HPN (). The LPNs and the HPNs are arranged to transmit signals wirelessly to UEs (-). The method comprises identifying () cell range expansion, CRE, areas of a group of LPNs, which CRE areas experience interference from a group of HPNs. The method further comprises counting () the number of HPNs in the group of HPNs and the number of LPNs in the group of LPNs, and when the numerical relation between the number of LPNs and the number of HPNs fulfills a predefined criterion, triggering () connection of a UE situated in any of the identified CRE areas to the LPN of the identified CRE area in which the UE is situated, and when the numerical relation between the number of LPNs and the number of HPNs does not fulfill the predefined criterion, triggering () connection of a UE situated in any of the identified CRE areas to one of the HPNs of the group of HPNs.

Method performed by a network node, network node and computer program for supporting cell selection of user equipments in a wireless communication network

A method and network node of a first cellular network, for enabling mitigation of interference in the first cellular network caused by radio communication in a second cellular network. The network node obtains a total interference in a first cell of the first cellular network, and estimates a first interference contribution in the first cell caused by radio communication in the first cellular network. The network node then determines a second interference contribution in the first cell caused by radio communication in the second cellular network based on the estimated first interference contribution and the obtained total interference. The network node also utilizes the determined second interference contribution to counteract the interference in the first cell caused by the radio communication in the second cellular network. Thereby, it is possible to counteract the interference in the first cell when the second interference contribution fulfills a threshold condition such that actions and measures for counteracting the inter-system interference can be initiated only when needed or when it is deemed effective for improving performance in the cell.

Method and network node for mitigation of interference

A method and apparatus in a base station serving a first cell in a cellular network, for supporting radio resource management, RRM, in the cellular network. The base station obtains measurements (M) of signals transmitted in the first cell and of signals transmitted in at least one neighboring cell and determines a cell isolation factor of the first cell, based on the obtained measurements, the cell isolation factor indicating insusceptibility to interference from signals transmitted in the neighboring cell(s). The determined cell isolation factor is then used to support RRM for terminals in the network, e.g. as a basis for determining whether to employ an RRM scheme or not. Thereby, it is possible to decide to employ the RRM scheme for cells where it is effective and helpful and not in other cells.

Method and arrangement for supporting radio resource management

The present invention relates to a wireless communication system. The wireless communication system comprises an antenna unit comprising a plurality of antenna elements, selecting means arranged to select at least one of the antenna elements as serving antenna for communication with user equipment, means for code allocation arranged to allocate a code for channel estimation support for the communication between the serving antenna and the user equipment, and a control unit arranged to control the communication based on the selected serving antenna and the allocated code. The means for code allocation are arranged to assign the code to said user equipment. The control unit is arranged to control the serving antenna so as to transmit the code assigned to the user equipment.

Growing community of inventors

Stockholm, Sweden

Fredric Carl Kronestedt