Abstract: For each target cell determined by a handover decision process, a first message is transmitted from a source base station (20S) to a target base station (20T) servicing that target cell. The first message includes an identifier of a wireless device (10) having a communication link with the source base station and information for obtaining authentication data for this wireless device. The authentication data depends on a secret key available to the wireless device and the source base station and on an identity of the target cell. Upon failure of the communication link, a cell is selected at the wireless device, which transmits to that cell a reestablishment request message including its identifier and authentication data depending on the secret key and on an identity of the selected cell.

Abstract: The method provides buffer status reporting for the transmission of uplink data from a wireless device (10) to a base station (20). User packets (50), each including a respective header, are stored in a first buffer (56) of the wireless device. The user packets taken out of the first buffer are converted into data units (60) written to a second buffer (81). The conversion includes header compression applied to the headers of the user packets depending on feedback information received from the base station. The wireless device transmits to the base station data units read from the second buffer and a buffer status report containing information on an amount of data to be transmitted from the wireless device. This information takes into account an amount of data stored in the first buffer.

Abstract: Transmitting information using a preamble of a Random Access Channel (RACH) in an Evolved Universal mobile Telecommunications System (E-UMTS) is provided. A preamble transmission is used to inform a base station of specific information when a terminal uses a RACH and the base station efficiently allocates radio resources for data transmission to the terminal according to the specific information. Delay time before the terminal transmits data is reduced and unnecessary consumption of radio resources is minimized.

Abstract: The present invention relates to communicating between a network and a mobile terminal in a wireless communication system. The invention includes receiving a first message from the network for processing a first procedure, and receiving a second message from the network for processing a second procedure, wherein execution of the second procedure is dependent on an outcome of the first procedure.

Abstract: A method for transmitting and receiving a Multimedia Broadcast/Multicast Service in a mobile communication system. The mobile communication system transmits the same service in different streams by having first bearer information and a second bearer information for the same service. The mobile terminal effectively receives the MBMS service by receiving second bearer information based on the first bearer information received through a downlink control channel.

Abstract: The present invention relates to maintaining an order of received data units during a handover procedure in a wireless communication system. The present invention includes receiving a plurality of data units from a source station according to a sequence prior to handover to a target base station, wherein each data unit includes a sequence number, receiving at least one data unit having a sequence number after handover from a target base station, and delivering to a higher layer all data units received from the source base station prior to handover and having sequence numbers smaller than a sequence number of the at least one data unit received from the target base station after handover.

Abstract: The present invention relates to communicating between a network and a mobile terminal in a wireless communication system. The invention includes receiving a message from the network for announcing a service. The message includes an attribute for identifying whether the service is to be received according to a specific mode. The specific mode is a mode wherein information is communicated on a frequency having no associated uplink service. The attribute is included in the message according to a session description protocol describing the service.

Abstract: A method of receiving control information by a terminal in a mobile communications system having a single control channel and a plurality of common channels and having a network that periodically transmits the control information via the control channel, the method comprising: periodically receiving the control channel; detecting, at a particular time, an identifier from the received control channel; and receiving data via a particular common channel that is indicated by control information that includes the detected identifier.

Abstract: In a wireless mobile communications system, a method for processing control information allows the operations of a mobile terminal to be simplified and permits efficient use of resources for the mobile terminal. The network instructs in advance, the transmission of control information, such as system information and the like, via a single indicator channel. The mobile terminal receives this single indicator channel and uses the indicator information that was transmitted via the indicator channel in order to receive the control information.

Abstract: A method of determining random access resources performed by a mobile terminal, the method comprising: receiving information on available random access resources from a network; deciding how to derive the random access resources to be allowed based on default values or information received from the network; measuring received signal quality of at least one of a cell to be accessed and a neighboring cell; and deriving the allowed random access resources based on the deciding and the measuring.

Abstract: A method of coordinating resources for repetition of random access bursts performed by a mobile terminal, the method comprising: determining groups of access slots based on parameters from a network, wherein each access slot is defined by any combination of frequency, time and code, and the access slots are organized according to a frequency pattern; transmitting an access burst on an access slot from a chosen group of access slots; and re-transmitting the access burst on the next access slot from the chosen group of access slots.

Abstract: Optimizing call setup procedures by determining whether a trigger for a random access procedure is independent for a restricted number of terminals, and performing a preamble transmission with or without a delay based upon the determining.

Abstract: The present invention relates to communicating between a network and a mobile terminal in a wireless communication system. The invention includes receiving a channel during a transmission time interval, and determining not to receive a transmission from the network for a predetermined amount of transmission time intervals related to the channel after receiving the channel.

Abstract: An improved admission control procedure for an admission control entity (e.g., Radio Network Controller (RNC), Node B, etc.) in a network that admits a terminal (mobile station, user equipment, etc.) having a certain receiver performance. Without improperly assuming one receiver performance or referring to a reference minimum receiver performance to calculate the resources that will be used, more accurate radio resources that should be used by the terminal when admitted to the cell can be determined by using appropriate information about the receiver performance of the terminal to be admitted.

Abstract: The present invention relates to communicating between a network and user equipment in a wireless communication system. The invention includes receiving an indicator on a first transmission frequency having no associated uplink service. The indicator indicates at least one transmission frequency different from the first transmission frequency and having no associated uplink service. Moreover, the indicator indicates whether the availability of a service on the at least one transmission frequency is provided on the first transmission frequency.

Abstract: The present invention related to communicating between a network and user equipment in a wireless communication system. The invention includes receiving communications on a first frequency, receiving information on the first frequency, wherein the information indicates at least one transmission frequency having no associated uplink service, and determining not to search for any transmission frequency having no associated uplink service different from the at least one transmission frequency.

Abstract: A method of changing a radio access configuration between a terminal and a network. The network performs the steps of: initiating a new configuration that is related to an old configuration for the same terminal; informing the terminal to apply the second configuration; and determining when the terminal uses the second configuration based on the reception of a radio signal from the terminal. The terminal performs the steps of: receiving information to apply a new configuration; transmitting, to the network, a radio signal indicating a change in configuration; and changing from an old configuration to the new configuration at a predetermined time after transmitting the radio signal.

Abstract: A method and apparatus for using dedicated signatures for an initial access procedure is provided for different cases in order to prevent contention due to several users sending the same signature. The present invention is applicable to a RACH initial access procedure performed when synchronizing uplink timing either periodically or upon reception of downlink data or when performing handover.

Abstract: Protection of access information in wireless communications is achieved by transmitting access information related to configuration to a terminal, receiving a result of a countermeasure procedure performed by the terminal, deciding whether the configuration is correct or not based on the received result, and if not correct, allowing the terminal to receive access information, or if correct, performing the configuration.

Abstract: A procedure for RACH initial access in a mobile terminal is provided such that necessary information is conveyed the for the initial access procedure with less overhead. The method allow an accurate choice of the uplink transport format by allowing the mobile terminal to determine by itself whether a certain transport format may be used for the transmission of a message prior to the first preamble transmission and prior to the power ramping.