A wireless device receives control messages comprising configuration parameters of a plurality of carriers comprising at least one backward compatible carrier and at least one non-backward compatible carrier. The control messages comprise information indicating a carrier type and information associating at least one of said at least one non-backward compatible carrier with one of said at least one backward compatible carrier. The wireless device transmits channel state information of one of said at least one non-backward compatible carrier on an uplink carrier of one of said at least one backward compatible carrier.

In a mobile communication system, an RRM measurement set is set as a collection of cells to become targets on which a UE performs a process of detecting whether or not radio communication is allowed. Among the cells in the RRM measurement set, a CoMP measurement set is set as a collection of cells to become candidates on which the UE performs a process of detecting whether or not coordinated communication (CoMP communication) is allowed. Among the cells of the CoMP measurement set, a CoMP active set is set as a collection of cells to become targets on which the UE performs the process of detecting whether or not CoMP communication is allowed.

There is provided a method comprising receiving first information at a user equipment, said first information indicative of whether a first cell supports the user equipment and starting a connection procedure to the first cell if the first information indicates that the first cell supports the user equipment, after receiving the first information.

A wireless device 108 and a method therein for assisting in precoder selection for wireless communication with a Radio Node (RN) 106, and a RN 106 for performing precoder selection for wireless communication with a wireless device 108. The wireless device is configured with a set of precoders. The wireless device determines a subset of precoders out of the set of precoders; and transmits, to the RN, at least one Sounding Reference Signal (SRS) precoded with a respective at least one precoder comprised in the subset. The RN receives, from the wireless device, at least one SRS precoded with a respective at least one precoder comprised in a subset of precoders; and transmits, to the wireless device, a signal indicative of a selected precoder to be used for a transmission to the RN, wherein the selected precoder is indirectly selected based on the received at least one SRS.

This invention provides a method, system and apparatus for controlling mobility on a wireless network, which includes retrieving a network mobility preference, the network mobility preference indicating a level of mobility service for the mobile station, the level of mobility service indicating the extent to which the mobile station can handoff among base stations of the wireless network, and establishing a level of mobility service for the mobile station based on the retrieved network mobility preference. The method and apparatus may further include determining the level of mobility service for the mobile station to be fully or partially restricted based on the mobility preference.

A method for multiple association includes associating with a first access point (AP) in a primary basic service set (BSS), associating with a second AP in a secondary BSS, informing the first and second APs of an inter-BSS relaying capability of a doubly-associated station, and relaying data between the first AP and the second AP.

Systems and methods for providing broadband internet access to mobile platforms such as vehicles, aircraft, and portable devices, using a network of one or more entities such as drones/unmanned aerial vehicles (UAVs). In one embodiment, the drone communication system comprises an antenna sub-system, a radio sub-system and a data switching sub-system. The mobile platforms comprise antenna and radio sub-systems to communicate with the drones, detect changes in the mobile platforms azimuth and elevation changes, and adjust the mobile platform's antenna beam to compensate for the orientation changes to optimally point toward the drones. The exemplary mobile platform further comprises methods to detect the need for handoff to a different drone and to carry out the handoff. A mechanism to improve coverage to mobile platforms that may see obstruction on their path to the drone network is also disclosed, as are apparatus and methods for cost efficiently providing reliable internet access to portable devices.

The embodiments of the invention, as described below, introduce a new full configuration flag to distinguish full configurations of low complexity category UEs from other categories. The new full configuration flag will also be referred to herein as an enhanced full configuration flag. A network node, such as a source eNB, can see the enhanced full configuration flag from the RRC configuration message that is prepared by another network node, for example a target eNB. If the target eNB sends a RRC configuration that contains a legacy version of the full configuration flag for a low complexity category UE, the source eNB knows that the target eNB does not comprehend Rel-12 and the low complexity category. Accordingly the source eNB can refrain from performing the handover. In addition, the UE can infer from the flag version if the target eNB has comprehended the UE category and accordingly it knows whether the configuration is valid or not. The embodiments of the invention described herein have the advantage that un-necessary signaling caused by failed handovers and unsuccessful RRC connection re-establishments are avoided. Consequently, network resources are used in a more efficient manner and UE battery lifetime is prolonged.

A method for improved communication between network nodes of a mobile communication network includes: establishing a communication interface between first and second base station entities by generating a first instance of the communication interface at the first base station entity and generating a second instance of the communication interface at the second base station; transmitting, from a removal initiating base station entity, a first removal message to a removal responding base station entity, wherein the removal initiating base station entity is one of the first and second base station entities and the removal responding base station entity is the other of the first and second base station entities; receiving, at the removal initiating base station entity, a second removal message from the removal responding base station entity; and disabling the communication interface, wherein disabling the communication interface comprises removing the first and second instances of the communication interface.

The present invention provides a method, base station, and dual connectivity system for providing service to handover of a user equipment. Through releasing and adding operations of the secondary base station and solving the data transmission issue in the process, the present invention provides a solution for handover of the user equipment between cells or base stations in a plurality of cases in a dual connectivity system.