UBIQUISYS LIMITED Patent applications |
Patent application number | Title | Published |
20150373698 | INTERFERENCE CONTROL IN A CELLULAR COMMUNICATIONS NETWORK - A method of controlling interference in a cellular communications network comprises, in a first base station of the network: determining that the first base station is suffering from uncontrolled interference from at least one other base station of the network; based on information received from at least one other base station of the network regarding estimates of interference caused at the first base station by at least one user equipment device connected to the respective other base station, selecting a proposed action to mitigate said interference; and notifying the respective other base station of the selection of the proposed action. | 12-24-2015 |
20150018028 | POWER SETTING - One example method of operation of a basestation in a mobile communications network is disclosed. The basestation may operate on a carrier channel and may be a member of a group of such basestations within the network. The method comprises establishing the presence of an adjacent basestation outside the group, which basestation operates on a carrier channel at least partially overlapping the carrier channel of the basestation and determining a degree of association between the basestation and the adjacent basestation with reference to other group members. The method further comprises setting at least one of a maximum downlink power for transmissions from the basestation and a maximum uplink power for transmissions from user equipment devices attached to the basestation, based on the degree of association between the basestation and the adjacent basestation. Also disclosed is a basestation operating in accordance with such a method. | 01-15-2015 |
20150017994 | CLASSIFICATION OF A BASESTATION - In one example embodiment, a method for classifying a basestation in a cellular communications network is provided that may include obtaining an identifier used by the basestation, comparing the identifier to a pool of identifiers reserved for a class of basestations, obtaining a frequency on which the basestation is operating, comparing the frequency to a pool of frequencies used by the class of basestations, and identifying the basestation as belonging to the class of basestations if the identifier is in the pool of identifiers and the frequency is in the pool of frequencies. Another method for classifying a basestation may comprise receiving a broadcast from the basestation including an attribute of the basestation, comparing the attribute with an attribute value range corresponding to the class of basestations, and identifying the basestation as belonging to the class of basestations if the received cell attribute falls within the attribute value range. | 01-15-2015 |
20140329534 | POWER MANAGEMENT IN A CELLULAR SYSTEM - There is provided a method for controlling a power allocation in a base station of a cell in a cellular communications network across a plurality of sub-bands. It is determined whether a long-term performance achieved by the cell exceeds a first threshold value and a total transmit power is allocated across the sub-bands according to whether the long-term performance achieved by the cell exceeds the first threshold value. A basestation configured to operate in accordance with the method is also provided. | 11-06-2014 |
20140295813 | SELECTION OF A BASESTATION PHYSICAL LAYER IDENTIFIER - In one example embodiment, a method for selecting a physical layer identifier for use in a basestation is disclosed. The basestation may be comprised within a mobile communications network, which may also comprise a plurality of other basestations. The method comprises receiving a pool of identifiers available for use by basestations within the network and assigning a temporary identifier for the basestation. The method further comprises receiving from connected UEs reports of identifiers from among the received pool that are in use by basestations detected by the connected UEs and assigning a final identifier selected from the received pool of identifiers, the final identifier being different from the temporary identifier. | 10-02-2014 |
20140243000 | LOCAL AREA CELLULAR BASESTATION - This invention relates to a cellular basestation, and in particular to a basestation for a cellular communications network, that can conveniently be used to provide a cellular service, for example within a home or office. | 08-28-2014 |
20140179333 | METHOD AND BASE STATION FOR AUTOMATIC CARRIER SELECTION - A femtocell basestation selects its carrier frequency by detecting a carrier used by at least one other basestation in its network, and selecting its own carrier frequency such that it partially overlaps with the detected carrier. The downlink power of the femtocell basestation is set based on the degree of overlap between the selected carrier and the detected carrier, so that a user equipment having a connection to the other basestation is forced to search for the selected carrier. | 06-26-2014 |
20140148149 | LOAD ESTIMATION AND LOAD MANAGEMENT IN A CELLULAR COMMUNICATIONS NETWORK - A cellular communications network | 05-29-2014 |
20140134991 | Self-Configuration of Wireless Networks - A cellular communications network includes multiple base stations. In order for the network to provide the best possible coverage for users, it is necessary for the radio configuration of each base station to take into consideration the radio configurations of nearby base stations. Operational context information for the access point is transmitted according to a publish-subscribe messaging pattern. Information is received identifying at least one other access point meeting proximity criteria. The access point subscribes to publish-subscribe messages from the or each other access point identified in said information, and sets its radio configuration information in view of the received messages from the or each other access point. | 05-15-2014 |
20140018081 | FEMTOCELL NETWORK - A femtocell base station in a telecommunications network identifies, for each user device served by the base station, which other base stations in the network that user device is authorized to access. The base station also determines a group identity for each of a plurality of possible neighbour cell base stations in the network. Based on this information, the base station identifies at least one possible handover target cell base station for each user device served by the base station, based on the identified other base stations in the network that user device is authorized to access; and based on the identified group identity for each of a plurality of possible neighbour cell base stations in the network. | 01-16-2014 |
20140004860 | SCRAMBLING CODE SELECTION | 01-02-2014 |
20130178217 | LOCAL AREA CELLULAR BASESTATION - This invention relates to a cellular basestation, and in particular to a basestation for a cellular communications network, that can conveniently be used to provide a cellular service, for example within a home or office. | 07-11-2013 |
20130178212 | CREATING NEIGHBOUR CELL LISTS - A neighbour cell list is formed, for use in a basestation of a cellular communications network. For each of a plurality of neighbour cells, a value of a first component is assigned, depending on whether or not the basestation can detect signals transmitted from said neighbour cell. A value of a second component is assigned, depending on a history of successful or unsuccessful handover attempts to said neighbour cell. The values of the first and second components are combined to form a weighting parameter, for use in determining a handover priority to be given to said neighbour cell in the neighbour cell list. | 07-11-2013 |
20130165176 | ACCESS POINT POWER CONTROL - There is described a method of controlling a basestation in a cellular wireless communications network, the method comprising, within the basestation, autonomously and dynamically adapting a maximum value for a total transmit power of the basestation, such that interference between the basestation and other access points in the vicinity is minimized. | 06-27-2013 |
20130165175 | ACCESS POINT POWER CONTROL - There is described a method of controlling a basestation in a cellular wireless communications network, the method comprising, within the basestation, autonomously and dynamically adapting a maximum value for a total transmit power of the basestation, such that interference between the basestation and other access points in the vicinity is minimized. | 06-27-2013 |
20130095789 | ACCESS POINT - Methods of operation of an access point are disclosed. These methods may involve authenticating a user equipment device in the access point. Access points configured for operating in accordance with the methods are also disclosed. Additionally, methods of operation of user equipment devices, and user equipment devices themselves configured for operating, in conjunction with the access points are disclosed. Still further, core network nodes configured to operate with the access points are disclosed. | 04-18-2013 |
20130089055 | SELF-CONFIGURING CELLULAR BASESTATION - A basestation for a cellular wireless communications network is able to configure itself for operation in the network, by selecting appropriate operating frequencies (in the case of GSM network) or scrambling codes (in the case of a UMTS network), and appropriate transmit powers. This makes it practical for a large number of such basestations to be deployed in a network, within customers' premises, without requiring network intervention in each case. | 04-11-2013 |
20130053049 | METHOD AND BASE STATION FOR AUTOMATIC CARRIER SELECTION - A femtocell basestation selects its carrier frequency by detecting a carrier used by at least one other basestation in its network, and selecting its own carrier frequency such that it partially overlaps with the detected carrier. The downlink power of the femtocell basestation is set based on the degree of overlap between the selected carrier and the detected carrier, so that a user equipment having a connection to the other basestation is forced to search for the selected carrier. | 02-28-2013 |
20120295664 | WIRELESS ACCESS POINT - A wireless access point may be in the form of a femtocell basestation in a cellular network. In order to establish a connection into the cellular network, an identity token is required for authorisation. A remote service, accessible over a Wide Area Network such as the interne, can register with the access point. When a connected user attempts to connect to the remote service, information derived from the identity token is inserted into the data traffic. Where the identity token identifies the access point, the remote service can return location-specific information. Where the identity token identifies the connected user, the remote service can return subscriber-specific information. The access point can insert information derived directly from the identity token, or it can use the identity token to access a service identity registry, and can then insert the service identity into the data traffic. | 11-22-2012 |
20120282931 | CONTROLLING MOBILITY IN CELLULAR NETWORKS - A cellular basestation can select its own mobility parameters in order to achieve desirable effects in terms of the overall network performance. When a cellular basestation forms part of a group of such basestations on a single local area network, it can receive information from the other basestations in the group, for example relating to the loading on the other basestations, and can use this information in order to set mobility parameters. Where the basestation receives loading information from other basestations in the group, it can set mobility parameters so that a user equipment device becomes less likely to select a more highly loaded cell, and more likely to select a less highly loaded cell. | 11-08-2012 |
20120270561 | LOCATION OF BASESTATION - Techniques and mechanisms relating to a basestation for a cellular communication system, and in particular to a method and a system for determining the location of the basestation, are disclosed. Methods are provided for use in a basestation of a mobile communications network, or in the network itself, for determining information about the position of the basestation itself, and/or for determining the position of mobile devices having a connection to the basestation. According to other aspects of the invention, there are provided basestations and network nodes for performing these methods. | 10-25-2012 |
20120238324 | LOCAL AREA CELLULAR BASESTATION - This invention relates to a cellular basestation, and in particular to a basestation for a cellular communications network, that can conveniently be used to provide a cellular service, for example within a home or office. | 09-20-2012 |
20120184303 | LOCATION OF BASESTATION - Techniques and mechanisms relating to a basestation for a cellular communication system, and in particular to a method and a system for determining the location of the basestation, are disclosed. Methods are provided for use in a basestation of a mobile communications network, or in the network itself, for determining information about the position of the basestation itself, and/or for determining the position of mobile devices having a connection to the basestation. According to other aspects of the invention, there are provided basestations and network nodes for performing these methods. | 07-19-2012 |
20120165003 | WIRELESS COMMUNICATIONS DEVICE - A wireless access device is operable in a mode in which its maximum transmit power is set to a value that means that the device has a range of less than 1 metre. This allows the device to operate as a basestation in a cellular communications network, even in locations in which it is not specifically licensed, because the power level is so low that it will not cause interference on the licensed frequencies. The wireless access device is designed such that a handheld portable device can be maintained in a close spatial relationship to it. | 06-28-2012 |
20120046055 | ACCESS POINT POWER CONTROL - There is described a method of controlling a basestation in a cellular wireless communications network, the method comprising, within the basestation, autonomously and dynamically adapting a maximum value for a total transmit power of the basestation, such that interference between the basestation and other access points in the vicinity is minimized. | 02-23-2012 |
20110194534 | ESTABLISHING COLOCATED SECOND CELL USING A SECOND SCRAMBLING CODE BY A FEMTO BASE STATION - In a cellular communications network, it may be desirable for a large number of basestations to share one or a small number of scrambling codes. When a basestation identifies a desired scrambling code, which is also being used by another nearby basestation, steps are taken such that a location area update is triggered whenever a mobile communications device moves from a coverage area of the nearby basestation into a coverage area of said basestation. Further, the basestation establishes a first cell, using the desired scrambling code, and also establishes a second cell also served by the basestation, using a second scrambling code. By ensuring that mobile devices are preferentially served by the second cell, the possibility of interference with the nearby basestation is reduced. | 08-11-2011 |
20110159926 | BASESTATION MEASUREMENTS - A basestation, for use in a cellular communications network, is adapted to provide a cellular communications service in at least one active cellular communications network by transmitting signals on system downlink channels of the active network and by receiving signals on system uplink channels of the active network. The basestation is also adapted to receive signals on system downlink channels of the active network. Further, the basestation is adapted to receive signals on system downlink channels of at least one additional network, although it is unable to transmit signals on system downlink channels of the additional network. The additional network may operate in accordance with a different cellular standard from the active network, and/or may be operated by a different cellular network operator from the active network. For example, where the active cellular communications network is a UMTS network, the additional network may be a GSM network, such that said basestation is adapted to receive signals on system downlink channels of the GSM network and is unable to transmit signals on system downlink channels of the GSM network. | 06-30-2011 |
20110081915 | SCRAMBLING CODE SELECTION - In a femtocell basestation of a cellular communications network, there is a potential difficulty that the basestation may be unable to select a scrambling code for its transmissions, without the risk of interference with other basestations using the same scrambling code. The femtocell basestation receives from a management system a list comprising at least one allowed scram-bling code for femtocell basestations, and also detects, in information broadcast by at least one macrocell basestation, at least one allowed scrambling code available in an area containing the basestation. If it is determined that use of each scrambling code that is allowed and is available in an area containing the basestation would cause interference with another femtocell basestation, a pa-rameter is set to ensure that a user equipment would perform a location update when moving between the coverage areas of said basestation and the other femtocell basestation. The parameter may be a MIB and/or SIB value tag. | 04-07-2011 |
20110039596 | BASESTATION POWER CONTROL - A basestation, for use in a cellular communications network, has a mechanism for reporting its transmit power. When the transmit power of the basestation is outside a reportable range, it reports an adjusted transmit power within the reportable range, and also transmits an adjustment factor, by which the adjusted transmit power differs from the transmit power. The basestation is also configured to adapt its power settings based on a reported transmit power of at least one other basestation, and is further configured to detect the reported transmit power of the at least one other basestation and to detect an adjustment factor transmitted separately by the at least one other basestation, and to adapt its power settings based on a sum of the reported transmit power and the adjustment factor. | 02-17-2011 |
20110039570 | POWER SETTING - A downlink power is set for transmissions from a basestation of a cellular communications network, the cellular communications network comprising a group of such basestations. A target value for a signal strength with which the transmissions should be received, and a target value for a pathloss, based on measured values for pathlosses between basestations of the group, are both set. The downlink power is calculated, based on the target value for the signal strength, and on the target value for the pathloss. | 02-17-2011 |
20110039564 | LOAD BALANCING IN A MOBILE COMMUNICATION NETWORK - A cellular access point, amongst a plurality of interconnected cellular access points receives from a first user equipment a connection attempt that would cause the access point to exceed a first predetermined capacity threshold. The cellular access point selects one of the previously connected user equipments and an associated one of the plurality of interconnected cellular access points. The cellular access point initiates a handover of the selected one of the previously connected user equipments to the associated one of the plurality of interconnected cellular access points and establishes a connection with the first user equipment. | 02-17-2011 |
20110039539 | SCRAMBLING CODE SELECTION - A basestation forms part of a group of basestations within a cellular communications network, and selects an identifying code for use in identifying transmissions from the basestation. The basestation receives from a management node a first list of identifying codes and a second list of identifying codes, wherein the identifying codes of the first list can appear in neighbour cell lists of basestations outside said group, and wherein the identifying codes of the second list can not appear in neighbour cell lists of basestations outside said group. The basestation determines whether there is at least one identifying code either in the first list of identifying codes or the second list of identifying codes that is not used by any other basestation in said group. If there is at least one identifying code in the first list of identifying codes and at least one identifying code in the second list of identifying codes that are not used by any other basestation in said group, an identifying code from the first list of identifying codes is selected in preference to an identifying code from the second list of identifying codes. | 02-17-2011 |
20110039520 | CREATING NEIGHBOUR CELL LISTS - A neighbour cell list is formed, for use in a basestation of a cellular communications network. For each of a plurality of neighbour cells, a value of a first component is assigned, depending on whether or not the basestation can detect signals transmitted from said neighbour cell. A value of a second component is assigned, depending on a history of successful or unsuccessful handover attempts to said neighbour cell. The values of the first and second components are combined to form a weighting parameter, for use in determining a handover priority to be given to said neighbour cell in the neighbour cell list. | 02-17-2011 |
20110009065 | INTERFERENCE MITIGATION IN A FEMTOCELL ACCESS POINT - A base station in a cellular network, such as a femtocell access point, has a first coverage area, and is located in a second coverage area associated with a second base station. The base station operates to detect a possibility of interference based on estimated first path losses, between the base station and points in the first coverage area, and a second path loss, between the base station and a user equipment that is attached to the second base station. The second path loss may be estimated in the base station, although there is no connection between the base station and the user equipment attached to the second base station, by estimating the average transmit power of the user equipment that is attached to the second base station; detecting in the base station signals transmitted by the user equipment that is attached to the second base station; and estimating the second path loss from a difference between the estimated average transmit power and the power of the detected signals transmitted by the user equipment that is attached to the second base station. | 01-13-2011 |
20100322426 | SELF-CONFIGURING CELLULAR BASESTATION - A basestation | 12-23-2010 |
20100317405 | SELF-CONFIGURING CELLULAR BASESTATION - A basestation for a cellular wireless communications network is able to configure itself for operation in the network, by selecting appropriate operating frequencies (in the case of GSM network) or scrambling codes (in the case of a UMTS network), and appropriate transmit powers. This makes it practical for a large number of such basestations to be deployed in a network, within customers' premises, without requiring network intervention in each case. | 12-16-2010 |
20100317386 | CELLULAR BASESTATION - A cellular basestation, for example a femtocell basestation, is able to configure its cel reselection parameters, in order to define a desired transition zone, in which cell reselections may take place. Specifically, the basestation detects broadcast cell reselection parameters of at least one neighbouring basestation, and adapts its own broadcast cell reselection parameters in response to the detected broadcast parameters of the neighbouring basestation. | 12-16-2010 |
20100227645 | AUTOMATIC BASE STATION CONFIGURATION - A basestation in a cellular communications network is configured such that it has a different Location Area Identification from other local basestations in the cellular network. This has the effect that a Location Area Update procedure is performed when a mobile device wishes to camp onto that basestation. The basestation is able to configure itself automatically, to ensure that its Location Area Identification differs from other local basestations. | 09-09-2010 |
20100216408 | BASESTATION FOR CELLULAR COMMUNICATION SYSTEM - A basestation in a cellular communication system corrects frequency errors in signals generated within the basestation. The frequency errors may be corrected on the basis of signals transmitted by one or more other basestations within the network. As an alternative, the basestation may request information from one or more mobile devices that are also able to detect transmissions from other basestations. | 08-26-2010 |
20100190495 | AUTOMATIC BASE STATION CONFIGURATION - A basestation in a cellular communications network is configured such that it has a different Location Area Identification from other local basestations in the cellular network. This has the effect that a Location Area Update procedure is performed when a mobile device wishes to camp onto that basestation. The basestation is able to configure itself automatically, to ensure that its Location Area Identification differs from other local basestations. | 07-29-2010 |
20100159990 | CELLULAR BASESTATION - A basestation, for a cellular communication network, is described. The basestation is adapted to store a list of user equipments that are authorized to access the network by means of the basestation. In the event that the basestation receives a location update request from an unauthorized user equipment, the basestation is adapted to send a reject message to the unauthorized user equipment. The reject message specifically identifies the basestation, such that the unauthorized user equipment does not attempt to send any further location update request to the basestation. | 06-24-2010 |
20090257416 | ACCESS POINT - An access point has a connection to a wide area network, and is configured to allow a device to connect thereto, and includes an Application Programming Interface for allowing a remote application to connect to the access point over the wide area network, and to obtain information relating to the device connected to the access point. In particular, the access point is configured to allow a device to connect thereto over a wireless interface, and to provide bearer translation such that traffic over the wireless interface can be directed over the wide area network. The Application Programming Interface may then allow the application to obtain information relating to a connection status of a wireless device associated with the access point. | 10-15-2009 |
20090163246 | OSCILLATOR CALIBRATION - A basestation for a cellular communication system has an interface, for connection to a computer network, and also includes an oscillator, for generating wireless transmit and receive frequencies. A controller receives timestamped response messages from a time server over the computer network, each response message being subject to a network propagation delay, which is a sum of a minimum network propagation delay and a jitter component. For each received response message an apparent network propagation delay is determined as a function of a difference between a first timestamp applied by the time server and a second timestamp based on a clock derived from said oscillator. A subset of the received response messages are selected, whose network propagation delays include minimal jitter components. The frequency accuracy of the oscillator is then determined based on changes over time in the apparent network propagation delays of the selected received response messages. The oscillator can then be adjusted based on this frequency accuracy. | 06-25-2009 |
20090161638 | TELECOMMUNICATIONS NETWORK - A basestation of a telecommunications network is able to acquire timing information by sending a single time request message over a computer network to a time server, with the time request message specifying a number of time response messages, said number being greater than one. Based on the received specified number of time response messages from the time server, the basestation is able to calibrate an internal oscillator. | 06-25-2009 |