Telefonaktiebolaget Lm Ericsson (Publ)

Paul Mihkel Teder

Tomas Nylander

Lars-Magnus Ewerbring

Jari Tapio Vikberg

Arne Simonsson

Peter Ökvist

Henrik Asplund

Mats Fredrik Sågfors

Oscar Zee

Jonas B Karlsson

Jonas Medbo

Magnus Thurfjell

Ann-Christine Eriksson

Tarmo Kuningas

Rutger Andersson

Mathias Riback

Lars G Larsson

Tomas Sandin

Lars Gustav Brismark

Torbj&ouml;rn Karlsson

Hangkan Anders Persson

Hangkan Persson

Jan Vikberg

A wireless device, a network node, a core node and methods for handling radio communication of data between the wireless device and the network node in a wireless network. The network node transmits system information related to availability of a potential data bearer dedicated for data tolerating a certain delivery delay, which is received by the wireless device in idle or inactive mode. The wireless device determines whether the potential data bearer is available, based on the system information. When available, the wireless device initiates a transition from idle/inactive mode to connected mode and communicates the data over the potential data bearer. When the potential data bearer is unavailable, the wireless device stays in the idle/inactive mode. When the data is downlink data, the core node sends a paging message indicating a potential data class.

Wireless device, network node, core node and methods for handling radio communication of data

Systems and methods of sharing channel information between co-located radio nodes are provided. In one exemplary embodiment, a method performed by a second radio node () of sharing channel information between a first radio node () and the second radio node that are co-located () may include obtaining (), by the second radio node, first channel information characterizing a communication channel (-) between a third radio node () and the first radio node in a first frequency band. Further, the method may include using (), by the second radio node, the first channel information for communication with the third radio node or a fourth radio node () in a second frequency band.

Systems and methods of sharing channel information between co-located radio nodes

A method of controlling the volume of user-plane traffic on the Iub or Iub/Iur interface between a Radio Network Controller and a Node B of a UMTS Radio Access Network during periods of overload. The method comprises, for individual uplink or downlink connections established over the Iub or Iub/Iur interface, monitoring at the Radio Network Controller the late arrival of frames at the Radio Network Controller or at the Node B transmitted over the Iub or Iub/Iur interface, and based on the results of said monitoring, causing a reduction in the Iub or Iub/Iur load for a connection when appropriate.

Congestion control within a radio access network

Methods and apparatus enable a femto radio base station (), initially connected to a first or default radio network controller node (), to be redirected/reconnected to a second or correct radio network controller node () for use as an active radio network controller node for the femto radio base station (). The redirection/reconnection is accomplished by using location-indicative information obtained from a user equipment unit () which is in radio communication with the femto radio base station (). The technique of redirection is particularly valuable when the femto radio base station () does not have its own receiver for ascertaining the radio access network (RAN) environment.

Redirection of IP-connected radio base station to correct control node

Methods and apparatus enable a femto radio base station () to be connected to an appropriate radio network controller node () of a radio access network () for use as an active radio network controller node for the femto radio base station. The connection is accomplished the femto radio base station () preparing a node address inquiry and for using the node address inquiry for obtaining an internet protocol (IP) address of an appropriate radio network controller node. The femto radio base station () further uses the internet protocol (IP) address of an appropriate radio network controller node for connecting to the appropriate radio network controller node as its active radio network controller node.

Radio network controller selection for IP-connected radio base station

A base transceiver station for a mobile communications system is disclosed, which is divided into a plurality of functional units that enables the signal processing resources to be flexibly allocated and cost-effectively implemented in hardware. A flexible communications interface is created between the base transceiver station units which allows the signal processing resources within the units to be used more efficiently. Essentially, the base transceiver station hardware is dimensioned to statistically distribute the signal processing resources among the different radio transmission services available. Consequently, the allocated base transceiver station hardware can be used more efficiently, which minimizes the overall size and weight of the base station.

Base station architecture for a mobile communications system

A receiver device (703) downspreads signals from a band spreading signal, which generates downspread symbol sequences (803). A vector generator (704) generate symbol vectors (805) which include a symbol from each downspread symbol sequence (803). An auxiliary receiver (705) detects symbol vectors (805) in a first window (809) with the length of one symbol time. The auxiliary receiver (705) generates provisional estimates of the symbol vectors (805) with the help of a device with a first window algorithm (811). A delaying module (706) delays the symbol vectors (805) from the vector generator (704) by one symbol time before they reach a main receiver (707). The main receiver (707) detects in a second window (806) the symbol vectors (805) with the length of one symbol time. The main receiver (707) uses a device with a second window algorithm (808) in order to estimate the received symbol vectors (805) with reference taken to the previously estimated symbol vectors in the main receiver (705) and the provisional estimates of the symbol vectors (805) from the auxiliary receiver (705). A component generator (710) divides up the estimated symbol vectors (807) from the main receiver into separate components (815).

Apparatus and a method for telecommunication system

Apparatus and associated method for improving the radio link performance of a radio communication system, such as a cellular communication system. Multi-stage encoding and interleaving of the data bits of a digital information signal is performed at a single logical device, such as a radio base station. By performing two stages of interleaving over the same number of information frames of the data bits, only a single buffering stage is required to perform such multi-stage interleaving.

Apparatus, and associated method, for transmitting and receiving a

A mobile station can be connected to more than one base station in a procedure known as macro-diversity. In order to synchronize the signals for a specific cellular call connection, the time difference between the connected base station's signal and a macro-diversity candidate base station's signal is measured by a mobile station. This measurement is then transmitted to the network. The measurements can be used to achieve synchronization via frame staggering.

Time alignment of transmission in a down-link of CDMA system

A system and method for coherently demodulating an uplink signal in a multirate, CDMA system. By first demodulating information in a control channel which relates to the data rate of a data field in a frame of the data channel of the received signal, phase information can be derived so as to generate a reference for coherent demodulation.

Growing community of inventors

Täby, Sweden

Paul Mihkel Teder