Abstract: The invention relates to a method for radio-link monitoring in a user equipment (4) of a communication network (1). The user equipment (4) receives and/or sends on a first carrier using a primary radio access technology system (2) and on a second carrier using a secondary radio access technology system (3). The method comprises: receiving (100), from a network node (5), information about the primary radio access technology system (2) and the secondary radio access technology system (3), and determining (110), in dependence on information related to the primary radio access technology system (2) and the secondary radio access technology system (3), whether to monitor radio link criteria on: the first carrier on the primary radio access technology system (2), or both the first carrier on the radio access technology system (2) and the second carrier on the secondary radio access technology system (3). The invention also relates to a user equipment implementing the method.

Abstract: A method in a wireless communication system for reporting buffer information includes selecting a format for a buffer report based on a number of radio bearer groups, k, for which data is available for transmission by a user equipment. The buffer report indicates a respective buffer fill level for one or more radio bearer groups associated with the user equipment. The method also include encoding a buffer fill level for one or more radio bearer groups in a buffer report in accordance with the selected format and transmitting the buffer report.

Abstract: The present invention relates to a method and an arrangement for obtaining efficient radio resource utilization over a radio interface in a communication network comprising a transmitting entity (18) transmitting data over said radio interface to a receiving entity (15), said transmitting entity (18) comprising at least an upper layer utilizing an automatic repeat request (ARQ) protocol on top of a lower layer utilizing a hybrid automatic repeat request (HARQ) protocol, whereby a timer in said upper layer is arranged to supervise operation of said upper layer. Said timer is set based on an indication of receipt status of the transmitted data in said receiving entity (15) according to said lower layer hybrid automatic repeat request protocol.

Abstract: When a user equipment (UE) is in a CONNECTED state with a base station of a wireless network and is also in a discontinuous reception (DRX) mode, a DRX parameter such as DRX period for the UE is compared with a threshold. If the DRX parameter is at or below the threshold, the UE applies a network controlled mobility mode with UE assist where the network controls handover of the UE to another cell. If the DRX parameter is above the threshold, the UE applies a UE controlled mobility mode in which the UE is free to select a best cell. In this way, DRX benefit of reduced power consumption is maintained while the time period in which the UE is unreachable is minimized.

Abstract: Congestion in a radio access network (RAN) associated with transporting uplink information originating from one or more mobile terminals is detected. That detected RAN congestion is reduced using any suitable technique (several examples are described) and may be implemented in one or more nodes in the RAN. One advantageous (but non-limiting) application is to a RAN that supports high speed uplink packet access (HSUPA) and/or one or more enhanced uplink dedicated channels (E-DCHs).

Abstract: The present invention relates to method and arrangements for using an identifier of a predefined type, e.g. an RNTI identifying one configuration on an out-band control channel for activating the configuration identifiable by that identifier. The identifier is sent from the network to the UE, when a configuration corresponding to that identifier is to be activated. This implies that both the UE and the radio base station comprise a mapping between each configuration and the corresponding identity of each configuration.

Abstract: Disclosed is, among other things, a method of physical Random Access Channel (PRACH) selection in a User Equipment, (UE) where the UE selects PRACH non-randomly from a list of candidate PRACHs.

Abstract: An object of the present invention is to provide a mechanism for improving coverage in a wireless communications system. The object is achieved by a method in a sending node (210) for transmitting a data unit to a receiving node (220). The data unit comprises a number of bits. The sending node (210) and the receiving node (220) are both comprised in a wireless communications system (200). According to the method, the sending node (210) obtains (606, 810) a value n associated with the data unit. Then, the sending node (210) selects (608, 814) a transmission time instance depending on n, such that a function exists that uniquely associates the selected transmission time instance with n. Finally, the sending node (210) transmits (612, 818) the data unit to the receiving node (220) in the selected transmission time instance, without the value n.

Abstract: The invention relates to a method in a user equipment 4 for determination of timing of a Hybrid Automatic Repeat re-Request, HARQ, response. The user equipment 4 operates in a communication network 1 comprising a primary radio access technology system 2 and a secondary radio access technology system 3. The user equipment 4 receives on at least one downlink carrier on the first radio access technology system 2 and on at least one downlink carrier on the second radio access technology system 3.

Abstract: The invention relates to methods, a user equipment and a communication network entity for optimizing the radio resource utilization in a communication network system comprising a network side and a user equipment side between which data is transmitted on uplink (17) and downlink (16) channels with a transmit power and said user equipment (18) is arranged to adjust said transmit power on said uplink channels (17) according to gain factors received from said network side, wherein said user equipment (18) is located in a location area of said communication network system. The gain factors are transmitted to the user equipment (18) solely when the user equipment (18) accesses the network system instead of transmitting gain factors during every session setup as long as the user equipment (18) is in said location area.

Abstract: The invention relates to a method implemented in a user equipment 4 of a communication network 1 for reporting inter-radio access technologies measurements. The communication network 1 comprises a first radio access technology system 2 and a second radio access technology system 3. The user equipment 4 is connected to a primary serving cell of the first radio access technology system 2 and a secondary serving cell of the second radio access technology system 3. The method comprises: performing 110 signal strength measurements in the first radio access technology system 2; performing 120 signal strength measurements in the second radio access technology system 3; determining 130, 145, 230, 240, based on the signal strength measurements, whether a criterion for a measurement event relating to the second radio access technology system 3 is fulfilled, and transmitting 150, for a fulfilled criterion, a corresponding measurement report to the communication network 1.

Abstract: Methods and devices are disclosed for forwarding data packets during handover in a packet-switched wireless communications system, such as a 3GPP Long-Term Evolution/System Architecture Evolution system. In an exemplary method, a source base station node determines that handover of at least one radio bearer for a served user terminal to a target base station node is imminent. The source base station node classifies a plurality of data packets into two or more data flow classifications according to a transmission status for each data packet, a service requirement for each data packet, or both and selectively forwards one or more of the data packets to the target base station node based on the data flow classification for each data packet. For example, data packets associated with a reliable delivery service requirement may be forwarded while data packets associated with a maximum delay service requirement are not.

Abstract: According to the present invention, a receiving node of a telecommunications network (20) (e.g. a radio base station (22) in uplink, or a mobile terminal (24) in downlink) transmits a single acknowledgement message to a transmitting node (e.g. a mobile terminal (24) in uplink, or a radio base station (22) in downlink) in respect of signals received over a plurality of frequency-aggregated carriers (component carriers) (10) between the transmitting and receiving nodes. If all signals are decoded correctly in the receiving node, a positive acknowledgement message (ACK) is sent to the transmitting node; if not all signals are decoded correctly, a negative acknowledgement message (NACK) is sent, or no acknowledgement message is sent. In this way, a single acknowledgement message can be sent for signals received over multiple carriers.

Abstract: The present invention relates to an improved procedure for synchronization of re-configuration of RRC procedures between the radio base station and the UE. This is achieved by associating a new configuration to be used by a UE with an additional UE identity. The UE is normally identified by a first UE identity, but is informed in a re-configuration message that the UE also has the additional UE identity. The UE is identified by the additional UE identity when the new configuration is to be activated. Hence, when the radio base station detects that the UE responds to requests, which included the additional UE identity, the radio base station can conclude that the UE has activated the new configuration.

Abstract: The teachings presented herein enable a user terminal to perform a fast recovery from a radio link failure. In one aspect, the improvement in recovery time is achieved by commanding or otherwise causing the user terminal to perform radio link failure (RLF) recovery at a cell that is known to possess the user context, while considering that this cell should yield good radio conditions (if not the best) to the user terminal. A cell may be predefined for use by the user terminal in recovering its radio connection. Based on providing signal strength thresholds to the user terminal, for use in determining whether to use a predefined cell for reconnecting to the network, the user terminal attempts RLF recovery first in the predefined cell. By providing user context to the predefined cell in advance of a recovery attempt by the user terminal, the time for recovery is lessened. Note that the user terminal also may infer which cells are preferred.

Abstract: A transmitter transmits a transport format indication to a receiver. Each value of the transport format indication identifies at least two transport block sizes to enable flexible use of different transport block sizes.

Abstract: The present invention relates to a method and to a transceiver (100) of a telecommunications system capable in exchanging protocol data units (PDUs) with another transceiver(s). Each PDU being identified using a sequence number. The transceiver, according to the present invention, is arranged to receive from the other transceiver a status report indicating positively acknowledged PDUs and negatively acknowledged PDUs. The transceiver (100) is further configured to compare sequence numbers in the report with previously acquired sequence numbers from previous reports and to prevent retransmissions of one or several PDUs based on the comparison.

Abstract: A user equipment connection supervision method in a user equipment, of a network node initiated random access procedure to force a declaration of connection failure is provided. The user equipment is connected to a wireless communication network via a wireless connection to the network node. After receiving (401) one or more commands from the network node, to perform random access procedure, the user equipment performs one or more attempts to initiate random access procedure by sending (402) one or more access request messages to the network node as a response to the received command. When no response to the sent access request message is received from the network node within a predetermined threshold value, the user equipment declares (406) failure of the wireless connection.

Abstract: A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant.

Abstract: Method in a user equipment (120), a user equipment (120), a method in a base station (110) and a base station (110) for setting values of system parameters used within a wireless communication system (100). A first set of parameter values and an associated first tag is sent from the base station (110) to be received and stored by the user equipment (120). Further, a second set of parameter values and an associated second tag is sent from the base station (110) to be received and stored by the user equipment (120). When the base station (110) determine to change system information parameters, a command tag is sent, to be received by the user equipment (120), which apply the set of parameter values associated with the tag corresponding to the received command tag.