Abstract: A Network Node and a method therein for controlling uplink power control are provided. The method comprises collecting (210) measurement reports from UEs. The method comprises creating (220) 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 (230) 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 (240) 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 (250) 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.

Abstract: 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 (230, 240), and high power nodes, HPN (210, 220). The LPNs and the HPNs are arranged to transmit signals wirelessly to UEs (251-254). The method comprises identifying (302) cell range expansion, CRE, areas of a group of LPNs, which CRE areas experience interference from a group of HPNs.

Abstract: 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.

Abstract: It is disclosed a method and a network node (502, 70, 90) for selecting a candidate cell (14, 44, 06) to be combined with a target cell (12, 42, 502) having a radio equipment (76) connected to a radio equipment controller (74). The method comprises identifying (612, 82) 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 (614, 84) the one (44) having the highest connection activity with the target cell; and combining (616, 86) the selected candidate cell (14, 44) and said target cell (12, 42) 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.

Abstract: 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.

Abstract: 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.

Abstract: A Network Node and a method therein for controlling uplink power control are provided. The method comprises collecting (210) measurement reports from UEs. The method comprises creating (220) 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 (230) 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 (240) 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 (250) 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.

Abstract: The present invention relates to a method of a wireless communication terminal (101). The method comprises detecting whether the terminal is in range of a wireless local network. The method also comprises measuring, while the terminal is in range of said local network, signal quality of a cell (103) of a first cellular radio access network (105). The cell uses a first radio access technology (RAT). The method also comprises sending information about the measured signal quality to a server(104). The information is sent via a second radio access technology (RAT) which is different from the first RAT.

Abstract: 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.

Abstract: The invention relates to a method and entity that allow for saving of uplink bandwidth in connection with peer-to-peer sharing in a wireless communication system. A caching entity, called a reverse cache, intercepts a point-to-point connection between a mobile network user plane gateway and a wireless user equipment running a peer-to-peer application. The reverse cache caches content loaded to the peer-to-peer application and stores information indicative of the wireless user equipment to which the cached content is loaded. A request on the point-to-point connection for delivery of a first content from the wireless user equipment is intercepted by the reverse cache. When the requested first content is cached in the reverse cache along with information indicating that the requested first content has been loaded to the wireless user equipment, the reverse cache responds by delivering the requested first content, without involving the wireless user equipment.

Abstract: 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 neighbouring 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 neighbouring 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.

Abstract: In a method and a device for frequency planning of a multi carrier cellular radio system, a cost function that reflects a multi carrier function is used. Using the method and the device the frequency optimization can be made to take into account systems employing multi carrier techniques whereby the planning complexity and time for operators is reduced.

Abstract: The invention relates to a method and entity that allow for saving of uplink bandwidth in connection with peer-to-peer sharing in a wireless communication system. A caching entity, called a reverse cache, intercepts a point-to-point connection between a mobile network user plane gateway and a wireless user equipment running a peer-to-peer application. The reverse cache caches content loaded to the peer-to-peer application and stores information indicative of the wireless user equipment to which the cached content is loaded. A request on the point-to-point connection for delivery of a first content from the wireless user equipment is intercepted by the reverse cache. When the requested first content is cached in the reverse cache along with information indicating that the requested first content has been loaded to the wireless user equipment, the reverse cache responds by delivering the requested first content, without involving the wireless user equipment.

Abstract: A network node (28) of a radio access network (20) comprises a scheduler (40) configured to provide an allocation of an uplink resource to an indoor wireless terminal (30) in communication over an air interface with the radio access network. The allocation of the network node is made in coordinated manner with resource allocation of another network node whereby any interference by reason of allocation of same uplink resource must be with another indoor wireless terminal served by the another network node. Preferably the another network node is a network node which serves a neighboring or adjacent cell.

Abstract: 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.

Abstract: In a method and a device for frequency planning of a multi carrier cellular radio system, a cost function that reflects a multi carrier function is used. Using the method and the device the frequency optimization can be made to take into account systems employing multi carrier techniques whereby the planning complexity and time for operators is reduced.

Abstract: In a method and a device for frequency planning of a cellular radio system with IRC. a cost function is provided that takes the IRC capabilities of the cellular system into account. Using the method and the device the frequency optimization can be made to take into account systems employing multi carrier techniques whereby the planning complexity and time for operators is reduced.

Abstract: A network node (28) of a radio access network (20) comprises a scheduler (40) configured to provide an allocation of an uplink resource to an indoor wireless terminal (30) in communication over an air interface with the radio access network. The allocation of the network node is made in coordinated manner with resource allocation of another network node whereby any interference by reason of allocation of same uplink resource must be with another indoor wireless terminal served by the another network node. Preferably the another network node is a network node which serves a neighboring or adjacent cell.

Abstract: A cellular telecommunications method and system for fractional reuse of resources through channel allocation tiering, thereby increasing the spectral efficiency of the telecommunications system. A number of available channels in a cell are divided into logical groups, each of which share the same radio resources. The system reduces or eliminates interference using a number of techniques, such as interference diversity, interference suppression and/or interference avoidance. This utilization of resources in the system will create a spectrally efficient network or cell and enable a reuse less than one.

Abstract: A cellular telecommunications method and system for fractional reuse of resources through channel allocation tiering, thereby increasing the spectral efficiency of the telecommunications system. A number of available channels in a cell are divided into logical groups, each of which share the same radio resources. The system reduces or eliminates interference using a number of techniques, such as interference diversity, interference suppression and/or interference avoidance. This utilization of resources in the system will create a spectrally efficient network or cell and enable a reuse less than one.