Abstract:
The invention relates to methods and devices for supporting configuration of a measurement gap pattern for a user equipment requiring measurement gaps for performing an inter-frequency measurement. A radio network node receives an indication from the user equipment that the user equipment is going to perform an inter-frequency measurement for positioning, which inter-frequency measurement requires measurement gaps. The radio network node may determine a measurement gap pattern for performing the inter-frequency measurement and may signal, to the user equipment, information to initiate use of the determined measurement gap pattern in the user equipment. Alternatively the user equipment configures the measurement gap pattern itself based on a set of pre-defined rules.
Abstract:
The present invention relates to a method and a device for supporting positioning with a minimum of assistance data signalling. The method in the radio device that shall perform the positioning measurements comprises determining (440) a positioning reference signal pattern, based on a cell identity and a pre-defined mapping between the cell identity and the positioning reference signal pattern, and performing (450) positioning measurements based on the determined positioning reference signal pattern.
Abstract:
A method of operating a communications network (20) comprising a wireless terminal (30) which communicates with a network node (22) comprises using the wireless terminal (30) to perform measurements relative to plural cells of the network, and then using the wireless terminal (30) or the network node (22) to make a determination regarding an extent of connection of the wireless terminal to a best cell of the network. The method also comprises using the wireless terminal (30) or the network node (22) to select a mobility related parameter for the wireless terminal (30) in accordance with the determination.
Abstract:
The present invention relates to a method and a device for supporting positioning with a minimum of assistance data signalling The method in the radio device that shall perform the positioning measurements comprises determining (440) a positioning reference signal pattern, based on a cell identity and a pre-defined mapping between the cell identity and the positioning reference signal pattern, and performing (450) positioning measurements based on the determined positioning reference signal pattern.
Abstract:
The invention provides a method and a network node for controlling configuration of measurements to be performed by a user equipment (150a, 150b) operating in a wireless communication system (101). A configured measurement corresponds to at least one reporting criteria and the user equipment (150a, 150b) is able to support a limited number of parallel reporting criteria. Measurements to be performed by the user equipment in parallel may be requested by different network nodes such as a positioning server (140) and an eNodeB (110a, 110b). By letting a network node, such as the positioning server (140) or the (eNodeB 110a, 110b), obtain information on measurements requested by another network node the network node is able to configure the user equipment with a set of measurements that does not exceed at least one predetermined threshold for parallel reporting criteria
Abstract:
The present invention relates to methods and devices for mobility management UE in a cellular communications system. A user equipment maintains (21) at least two sets of mobility trigger parameters. Each set of mobility trigger parameters corresponds to a predetermined user equipment speed range. The user equipment determines (22) a speed range that the speed of the user equipment falls into and selects (23), based on the determined speed range, at least one set of mobility trigger parameters to be used for performing mobility-based decisions. If the user equipment is in connected mode a network base station may select a set of mobility trigger parameters to be used for performing handover decisions based on a determined speed range of the user equipment. Advantages are that ping-pong mobility decisions may be avoided and it is sufficient to determine a range for the UE speed, which is less complicated than determining an accurate speed of the UE particularly in idle mode.
Abstract:
A user equipment performs downlink measurement on neighbour cells, but the measurement performance on a target cell (in terms of measurement period/sampling/accuracy etc) is dependent on the relative performance difference between the target cell and a reference cell. The reference cell may be the serving cell, or may be the strongest cell. The network is thus able to keep track of the required number of target cells without degrading the measurement performance of important cells. The UE on the other hand is still able to save its battery as much as possible while making full use of DRX.
Abstract:
The present invention relates to a method and arrangement in a cellular communication system, in particular to methods and arrangements in a user equipment and a network node for reporting cell measurement results. The present invention provides improved methods and arrangements for reporting cell measurements without significantly increasing the complexity in the cell measurement procedure. The user equipment reports the number of transmit antenna ports used for performing cell measurements on each of the neighbouring cell in its measurement report to the network node. The network node receives the number of transmit antenna ports which enables the network to be aware of the actual number of antenna ports that are used for cell measurements.
Abstract:
The present application discloses systems and methods for automatically adding a unique identifier associated with a cell to a neighbor cell list associated with another cell. In some embodiments, the method includes: selecting a particular mobile terminal from a set of mobile terminals; instructing the particular mobile terminal to obtain and report the unique identifier; receiving from the particular mobile terminal the unique identifier; and adding the unique identifier to the neighbor cell list, wherein the step of selecting the particular mobile terminal from the set of mobile terminals comprises determining which of the mobile terminals in the set appears to have a relatively high probability of obtaining the unique identifier within a certain window of time and selecting that mobile terminal.
Abstract:
The embodiments of the present invention relate to a method in UE (400) and a UE (400) configured to adapt at least one higher layer filtering parameter used for radio link failure detection between the UE (400) and a base station (600) in a telecommunications system (200). The embodiments of the present invention further relate to a base station (600) and a method in the base station (200). According to an embodiment of the present invention, the UE (400) is configured to operate in a discontinuous reception (DRX) mode having at least one DRX cycle; and is further configured to adapt at least one parameter as a function of a current DRX cycle the UE is using. The UE (400) is further configured to evaluate radio link failure detection based on the parameters. After evaluation, the UE (400) is further configured to evaluate radio link failure detection based on the one or several adapted parameters. After evaluation, the UE (400) is arranged to inform the base station (600) on radio link conditions.