Nokia Siemens Networks Gmbh & Co Kg

Siemens Aktiengesellschaft

Nokia Technologies Oy

Broadcom Corporation

Nokia Siemens Networks Oy

Siemens Aktiengellschaft

Inmarsat Limited

Nokia Solutions and Networks Oy

Nokia Solutions and Networks Gmbh & Co. Kg

David Randall

Benoist Sebire

Norbert Kroth

Jörg Schniedenharn

Haiming Wang

Jing Han

Sami-Jukka Hakola

Angelo Centonza

Wei Bai

Volker Breuer

Erlin Zeng

Sami Hakola

Nobuyuki Kawai

Thomas Malcolm Chapman

Thomas Stadler

Kristan Barraclough

Michael J McTiffin

Burghard Unteregger

Hok Shuen Wong

Toby Kier Proctor

Markus Wimmer

Agnes Revel

Nobert Kroth

Berghard Unteregger

At least one of transmissions and receptions over allocated radio resources within a first timing advance group are synchronized using a first timer; and similar for allocated radio resources within a second timing advance group that are synchronized using a second timer. In response to determining that the first timer remains synchronized while the second timer is not synchronized with a radio network which has allocated the respective radio resources, a first procedure is followed for the case in which there is a primary component carrier within the second timing advance group and a different second procedure for the case in which there is no primary component carrier within the second timing advance group. In an exemplary embodiment, a message is sent to the radio network indicating that the second timer has expired. Various distinctions between the two procedures, and how the message is sent, are detailed for different embodiments.

Multiple timing advance and carrier aggregation

A method, apparatus and computer program product are provided to facilitate the determination of the timing advances of each of a plurality of component carriers by triggering the determination of the timing advances in response to certain pre-defined events that are indicative of a need for the timing advance to be determined. A method may include determining that a pre-defined event has occurred and triggering a determination of a timing advance for a second component carrier relative to a timing advance of a first component carrier based upon occurrence of the predefined event. In this regard, both the component carriers are concurrently allocated to a mobile terminal. The method may also utilize the timing advance to synchronize communications on the second component carrier between the mobile terminal and a network. A corresponding apparatus and computer program product may also be provided.

Method, apparatus and computer program product for triggering the determination of a timing advance for one component carrier based upon another component carrier

Transmissions sent on a multicast broadcast multimedia service control channel (MCCH) to a mobile terminal are determined to be successfully received by signalling the expected number of messages within the transmission; and terminating receipt of the MCCH only when the number of messages received is equal to the number of messages signalled.

Method for determining successful receipt at a mobile terminal

An apparatus configured to receive packets associated with a service and to communicate the packets to at least one user in a system enabling communication of multiple data streams in a transmission is disclosed. The apparatus is configured to assign packets of a data stream with a service identifier.

Identification of MBMS service from a central node to UMTS LTE eNBs

A method and radio communication system for the transmit useful information as a service to several user stations with at least one radio network controller, at least one base station and at least one user station. The radio network controller is connected to an access device in a core network. The useful information is provided to several users as a service, whereby the user stations of the users are informed before the transmission of the useful information. According to the invention, the notification for the user stations of the users at least partly comprises a request for a response and the transmission of the useful information at least partly occurs after receipt of the response.

Method and radio communication system for the transmission of useful information as a service to several user stations

The present invention relates to an apparatus and a method for indicating a channel resource. The apparatus including a transmitter arranged to transmit an indicating acquisition indication channel signature wherein said indicating signature is used to indicate an enhanced dedicated channel resource (uplink resource set) to be used by a user equipment; a memory configured to store a mapping associating a random access channel signature sequence to one or more of the indicating acquisition indication channel signatures; and a data processor configured to use the stored mapping to relate a random access channel signature sequence to one or more of the indicating acquisition indication channel signatures; configured to relate each indicating acquisition indication channel signature to an uplink resource set such there is a three-way mapping between the random access channel signature sequence, the one or more indicating acquisition indication channel signatures and the uplink resource set.

Resource allocation

A method of scheduling packets in a mobile communication system includes, in each time period, assigning to each bearer of a terminal, a credit. In each time period for which resources are available, accepting data packets from a bearer in accordance with predefined constraints of priority, buffer content and credit. An accepted data packet size may exceed the available credit by an amount in a predefined range.

Packet scheduling

According to a first aspect, there is provided a method for controlling uplink access transmissions in a radio communication system, wherein a user equipment determines a delay time for transmitting a signal on an uplink access channel, wherein the delay time is randomly determined based upon a probability distribution that increases in density with increasing delay. According to a second aspect, there is provided a method for controlling uplink access transmissions in a radio communication system, wherein from a base station of the radio communication system, time variable information is signalled in downlink to user equipments located in an area covered by the base station, wherein the information is used to determine delay times for transmitting signals on an uplink access channel and wherein the information varies based upon a probability distribution which increases in density with increasing time.

Method for uplink access transmissions in a radio communication system

A method of controlling receipt of signals at a terminal () of communications system involves receiving data (D,D) on at least one control channel from a first base station (). The terminal is adapted to periodically perform measurements on signals transmitted by at least one second base station (). The terminal determines whether a period in which data signals (D) are on the at least on control channel at least partially overlaps with a period for performing measurements (M) and disables performance of measurements in favor of receipt of data on the at least one control channel.

Method of controlling receipt of signals at a terminal of a communications system

A mobile terminal selects neighbor cell(s) to use in receiving a broadcast or multicast by deriving an estimate of cell quality for each neighbor cell; comparing the estimated quality with a minimum acceptable quality; and choosing those neighbor cells having the highest quality from the acceptable neighbor cells. The estimate of cell quality is based on a parameter of the difference between a common pilot channel transmit power and a secondary common control physical channel transmit power that is transmitted to the mobile terminal on a multimedia broadcast multicast control channel.

Method of determining neighbor cell selection

Data relating to the status of usersin a mobile communications system is broadcast via satellitefrom a network registerto local registersin an HDLC format. Each of the local registersrequests retransmission of any HDLC frames which are incorrectly received. The network registerrecords the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network registerpolls the local registersfor retransmission requests and the local registersalso send unsolicited requests to the network register. The network registeronly retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period. When a new local registerenters the broadcast reception group, the network registerinforms the new local registerwhich new frame will next be transmitted. The number of bits used for frame sequence numbers is greater than that defined in the HDLC protocols.

Method and apparatus for transmitting data

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Romsey, United Kingdom

David Randall