Patents by Inventor Telefonaktiebolaget L M Ericsson (PUBL)

Telefonaktiebolaget L M Ericsson (PUBL) has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140078896
    Abstract: In a multi-access system, an access selection principle is achieved by selecting a signal strength threshold level (130-133) based on a determined load level (ULOCAL) in a first access network. A new user in an area commonly covered by more than one access network attempts to allocate to the first access network if an experienced signal strength exceeds the signal strength threshold level (130-133). Communication utility can preferably be maximised or at least be taken into account by using suitable load level dependencies. By increasing the threshold when the load level approaches the capacity limit, a completely filled first access network is avoided. This gives an opportunity to let particularly well-suited users still have access to the first access network. At the same time, since the preferred access is decided before the actual access attempt, control signalling can be significantly reduced, even at very high traffic loads.
    Type: Application
    Filed: February 27, 2013
    Publication date: March 20, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Telefonaktiebolaget L M Ericsson (publ)
  • Publication number: 20140036716
    Abstract: In scenarios where the quality of service is negotiated through a signalling layer whereas the services are actually carried through a bearer layer, application functions at the signalling layer are not always aware of how quality of service is individually accomplished at the bearer layer on a service basis. The invention provides a method and devices whereby events are detected on a service data flow basis at a detection device in the bearer layer and notified towards an application device in the signalling layer via a control device between the signalling and the bearer layer. The list of events to be notified is obtainable at the control device from the application device and is included in Quality of Service related rules, along with service data flow filters. This Quality of Service related rules are provided to the detection device for inspecting individual service data flows in order to detect and notify the indicated events.
    Type: Application
    Filed: May 13, 2013
    Publication date: February 6, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20140038606
    Abstract: A node of a secondary RAT that is in communication with a primary node of a primary RAT and UEs that, are able to communicate by way of the primary and secondary RATs. The node concludes a network interface unit of the node which receives a message from the primary node that indicates that the primary RAT is in an overload condition. The node includes a processing unit of the node which forms f IE messages for the UEs not to try to communicate with the primary RAT, the network interface unit of the node sending the messages to the UEs. A method of a node of a secondary RAT that is in communication with a primary node of a primary RAT and UEs that are able to communicate by way of the primary and secondary RATs.
    Type: Application
    Filed: December 20, 2012
    Publication date: February 6, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20140031069
    Abstract: Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 30, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130336210
    Abstract: A solution enabling subscribers of an enterprise, which itself is not a client of a Mobile Network Operator, MNO, but is a client of a Mobile Virtual Network Enabler, MVNE, to utilize a high speed data access at a guaranteed Quality of Service, or to access APIs, through a mobile network of the MNO. The MVNE includes a plurality of IP Multimedia Subsystem, IMS, core elements to facilitate delivery of high speed data associated with IMS services to the subscribers of the enterprise via the MNO mobile network. The MVNE is modeled as a roaming partner to the MNO allowing the MNO to leverage its existing roaming agreement with the MVNE. Allocation and utilization of an MNO's Subscriber Identification Module, SIM, cards by the MVNE minimizes the barrier to entry for the enterprises served by the MVNE. The MNO can provide monetizeable services to MVNE's subscribers as well.
    Type: Application
    Filed: March 18, 2013
    Publication date: December 19, 2013
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130322403
    Abstract: One embodiment is directed to a method implemented by a mobile station for establishing a downlink temporary block flow (TBF) from a base station subsystem (BSS). Cell re-selection is performed while a READY timer of the mobile station has not expired. A cell update message that includes a radio link control (RLC) data block containing a remaining ready timer value indicating a remaining time of the READY timer, which has not expired, is sent to the BSS for use in determining when a mobile station supports the assignment of a TOI, sending an assigned TOI to that mobile station and establishing subsequent downlink TBFs using the assigned TOI instead of a legacy mobile station identity. Another related embodiment is directed to a method implemented by a BSS for establishing downlink TBFs to a plurality of mobile stations.
    Type: Application
    Filed: April 22, 2013
    Publication date: December 5, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130318218
    Abstract: An access network sends allocation information to an external service provider network (SPN), responsive to a wireless device establishing a data session with the access network for communicating with the SPN. The allocation information indicates the Internet Protocol (IP) address assigned to the wireless device by the access network for the data session and an external identifier to be used by the SPN in identifying the wireless device to the access network. Subsequently, the SPN receives a service provider network identifier and point of contact information in signaling sent from the wireless device, and binds the service provider network identifier to the external identifier that is associated with the IP address indicated in the point of contact information. This binding enables the SPN to trigger communications targeting the service provider network identifier of the wireless device, by sending triggering signaling to the access network that includes the bound external identifier.
    Type: Application
    Filed: March 7, 2013
    Publication date: November 28, 2013
    Inventor: Telefonaktiebolaget L M Ericsson (publ)
  • Publication number: 20130301521
    Abstract: IMS nodes and a satellite radio access node (RAN) are described herein which are operative to establish certain calls (e.g., voice calls) with reduced latency and selectively using a High Penetration Alert (HPA) page to reach a terminating satellite user equipment (UE).
    Type: Application
    Filed: May 6, 2013
    Publication date: November 14, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130287295
    Abstract: In an image-encoding scheme, an input image is decomposed into several image blocks comprising multiple image elements. The image blocks are encoded into encoded block representations. In this encoding, color weights are assigned to the image elements in the block based on their relative positions in the block. At least two color codeword are determined, at least partly based on the color weights. These codewords are representations of at least two color values. The original colors of the image elements are represented by color representations derivable from combinations of the at least two color values weighted by the assigned color weights.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 31, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130279482
    Abstract: A method of operating a mobile station in a packet transfer mode includes receiving a distribution timing advance message on a control channel from a base station. The distribution timing advance message contains a plurality of mobile station identifiers and associated timing advance values. One of the mobile station identifiers is identified as corresponding to the mobile station. The timing advance value associated with the identified one of the mobile station identifiers is determined. The timing of an uplink transmission to the base station is then adjusted responsive to the timing advance value. Related mobile stations, methods of operating a base station subsystem to communicate timing advance values to a plurality of mobile stations, base station subsystems, and methods of operating a serving GPRS support node to control communication of timing advance values by a base station subsystem are also disclosed.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 24, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130236017
    Abstract: A method for encrypting radio resource control (RRC) messages exchanged between a wireless communication device and a node in a wireless communication system includes separating sequence number rollover events from mobility events while encrypting radio resource control (RRC) messages for exchange within a wireless communication system. According to the method, the sequence number rollover events and mobility events are separated by utilizing a state transition counter, a handover counter, and an overflow counter such that, when the state counter is incremented due to occurrences of a first group of events, the handover counter and the overflow counter are re-set to zero and, when the handover counter is incremented due to occurrences of a second group of events the overflow counter is re-set to zero.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 12, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130231116
    Abstract: Methods and apparatus for processing mobile station transaction information at a serving control node in a wireless communication system are disclosed. The serving control node may be a base station, such as an eNodeB in an LTE/SAE wireless communication system. The transaction information, which may include, for example, mobility-related transaction information and traffic-related transaction information for a given mobile station, may be passed between controlling control nodes as the corresponding mobile station is handed over, so that a controlling control node has access to information characterizing the past activities of the mobile station. This information may be used in some embodiments for selecting a target control node for handover or for allocating link resources.
    Type: Application
    Filed: May 2, 2013
    Publication date: September 5, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130223379
    Abstract: A method and a radio base station for interleaving control channel data to be transmitted in a telecommunications system are described. The method comprises grouping the control channel elements CCE1-CCEn into a first order of control channel symbol groups, adding symbol groups comprising dummy values or zeros to the first order of control channel symbol groups based on a number of available symbol group positions, interleaving the first order of the control channel symbol groups resulting in an a second order, and mapping the second order of control channel symbol groups to the control channel transmission resources.
    Type: Application
    Filed: April 4, 2013
    Publication date: August 29, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Telefonaktiebolaget L M Ericsson (publ)
  • Publication number: 20130223333
    Abstract: Call placement to or from satellite UEs is optimized by reducing IMS message exchanges, the originating party has control over QoS parameters, a HPA subscription service is made available, and calls to a terminating satellite UE that is shielded from satellite coverage are completed by selectively employing HPA pages. For a call request without preconditions, an IMS node associated with an originating UE uses the NRSCPA on Offer instead of using the standard terminating node initiated NRSCPA on Answer. An IMS node associated with a terminating UE checks for HPA subscription by the user. If subscribed, the terminating INVITE request is for a “Conversational” or “Interactive” service, and the terminating UE is in PMM_IDLE state, the satellite RAN pages the terminating UE using HPA.
    Type: Application
    Filed: May 7, 2013
    Publication date: August 29, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130215843
    Abstract: A method of operating a mobile station requesting uplink access from a base station subsystem includes transmitting a first access request to a base station subsystem, and looking for an assignment message matching the first access request from the base station subsystem during a response interval after transmitting the first access request. When an assignment message is not received during, the response interval, a second access request is transmitted to the base station subsystem after expiration of a retransmission interval after transmitting the first access request, with the retransmission interval being longer than the response interval.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 22, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130218577
    Abstract: A method for perceptual spectral decoding comprises decoding of spectral coefficients recovered from a binary flux into decoded spectral coefficients of an initial set of spectral coefficients. The initial set of spectral coefficients are spectrum filled. The spectrum filling comprises noise filling of spectral holes by setting spectral coefficients in the initial set of spectral coefficients not being decoded from the binary flux equal to elements derived from the decoded spectral coefficients. The set of reconstructed spectral coefficients of a frequency domain formed by the spectrum filling is converted into an audio signal of a time domain. A perceptual spectral decoder comprises a noise filler, operating according to the method for perceptual spectral decoding.
    Type: Application
    Filed: January 31, 2013
    Publication date: August 22, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Telefonaktiebolaget L M Ericsson (publ)
  • Publication number: 20130215939
    Abstract: Transmitting and receiving arrangements and methods in a Digital Subscriber Line (DSL) system having a plurality of modems and vectored transmission capability. A first part of an available frequency band is reserved for vectored DSL transmission and reception using modems operating in the first part of the frequency band. The remaining, second, part of the available frequency band is reserved for both vectored and non-vectored transmission using modems operating in the second part of the frequency band.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 22, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130214965
    Abstract: Embodiments herein include a method for obtaining a calibration parameter for an antenna array. The antenna array comprises a first and a second radio module with respective associated antennas, wherein both radio modules comprise a main transmitter and a connected calibration receiver or both radio modules comprise a main receiver and a connected calibration transmitter. The method comprises: injecting a first calibration signal in the first radio module and measuring a first response to the first calibration in the first radio module. This injecting and measuring is repeated for all combinations of the first and second radio modules. Finally, a numerical value is calculated using the responses; a calibration parameter is calculated based on the calculated numerical value. Embodiments herein also include a corresponding antenna array, computer program and computer program product.
    Type: Application
    Filed: March 7, 2013
    Publication date: August 22, 2013
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
  • Publication number: 20130215907
    Abstract: Communication efficiency may be enhanced by using compressed headers. In an example embodiment, a method is performed by a transmitting device to reduce header size. A mapping is created between a logical channel identifier and a compressed logical channel identifier. The compressed logical channel identifier occupies fewer bits than the logical channel identifier. The mapping is transmitted to a receiving device. A compressed header that includes the compressed logical channel identifier is formulated. A communication that includes the compressed header is transmitted to the receiving device. In another example embodiment, a method is performed by a receiving device to decode a header having a reduced size. A mapping and a communication including a compressed header are received. A compressed logical channel identifier is extracted from the compressed header. A logical channel identifier is recovered from the compressed logical channel identifier using the mapping.
    Type: Application
    Filed: April 30, 2013
    Publication date: August 22, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventor: Telefonaktiebolaget L M Ericsson (PUBL)
  • Publication number: 20130207843
    Abstract: Determination of an impairment compensation matrix for compensation of impairments in an antenna array is disclosed. A plurality of different combinations of multi-signal transmissions which form at least one null at a respective location of a plurality of locations is determined. Each combination includes a multi-signal transmission that comprises at least two concurrent signal transmissions from at least two antenna subarrays of N antenna subarrays and the respective location. Based on signal characteristics associated with the plurality of different combinations of multi-signal transmissions and an expected signal reception at the plurality of locations, an impairment matrix that identifies an effect of impairments among the N antenna subarrays is determined. The impairment compensation matrix is determined based on the impairment matrix.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 15, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Telefonaktiebolaget L M Ericsson (publ)