Abstract: A system method, apparatus, and computer program product are provided for coordinating communications between network nodes. A method may include transmitting an information message related to a first network node implementing broadcasting-and-extracting mode to a neighboring network node implementing collecting-and-broadcasting mode during a first time interval. The method may further include receiving a collective information message package from the neighboring network node during a second time interval. The collective information message package may include one or more information messages received by the neighboring network node during the first time interval and an information message related to the neighboring network node. Corresponding systems, computer program products, and apparatuses are also provided.

Abstract: First almost-blank subframe, ABS, information regarding multiple subframes, SFs, is received at an underlying access point, AP, from an overlaying AP, wherein the first ABS information includes an identification of mandatory ABS(s) in the multiple SFs. Second ABS information regarding the multiple SFs is received at the underlying AP from the overlaying AP. The second information includes an identification of optional ABS(s) in the multiple SFs. The optional ABS(s) are to be used as one of normal SFs or mandatory ABSs. The multiple SFs for the underlying cell are scheduled based on whether the optional ABS(s) is to be used as an ABS. Mandatory and optional ABSs in multiple subframes are scheduled at an overlaying AP. First ABS information, including an identification of mandatory ABS(s), is sent to an underlying AP. Second ABS information, including identification of optional ABS(s) in the subframes, is sent to the underlying AP.

Abstract: The present invention provides methods, apparatuses and computer program product relating to guaranteed periods of inactivity for network listening modes. The present invention includes configuring a measurement configuration message, the measurement configuration message including measurement gap information, and transmitting the measurement configuration message to at least two user equipments connected to the base station, wherein the measurement gap information included in the measurement configuration message is the same for each of the at least two user equipments.

Abstract: In an LTE-A mobile communications system, provision of additional random access resources, called “shadow” PRACH, that are available to User Equipments, UEs, for a contention-free access procedure during handover. eNBs provide information on PRACH resources, broadcasting a first set of resources available for contention-based and contention-free random access and indicating via the X2 interface to neighbouring eNBs such additional PRACH resources, together with corresponding preambles, which are in turn indicated via dedicated signalling to UEs during a handover procedure.

Abstract: It is checked if a first CRE from a first cell is larger than 0 and if a second CRE from a second cell is larger than 0. If both the first and the second CRE are larger than 0, a first modified CRE is set based on the first CRE and a second modified CRE is set based on the second CRE. If the first CRE and/or the second CRE is equal to 0, the first modified CRE is set the first CRE and the second modified CRE is set to the second CRE. One of the first and second cell is selected for cell selection and/or handover based on a comparison of a sum of a signal strength indicator from the first cell and the first modified CRE and a sum of a signal strength indicator from the second cell and the second modified CRE.

Abstract: An apparatus and a method are described, in which a plurality of signals is received via plurality of receiver units of a receiver, signal quality and/or power related measurements are performed, and a signal quality and/or power related measurement result is generated based on a combination of signals received by the receiver units.

Abstract: An apparatus at least one processor, and at least one memory for storing instructions to be executed by the processor, wherein the at least one memory and the instructions are configured to, with the at least one processor, cause the apparatus at least: to create at least one pool of communication resources for a fast handover procedure, wherein at least one set of communication resources is allocated to a pool of communication resources, and to cause a transmission of information indicating the content of the at least one pool of communication resources to a neighboring cell for allocating the pool of communication resources to the neighboring cell.

Abstract: A method, including making one or more measurements at a mobile device of path loss for a transmission between said mobile device and a base station in a first frequency band of a plurality of frequency bands in which the mobile device is configured to make transmissions to said base station; receiving at said mobile device path loss estimate information specifying an estimate of the relationship between said path loss for a transmission between said mobile device and said base station in said first frequency band, and path loss for a transmission between said mobile device and said base station in a second frequency band of said plurality of frequency bands; and determining a transmission power for at least one transmission to said base station in said second frequency band on the basis of at least said one or more measurements and said path loss estimate information.

Abstract: Avoiding secondary cell configuration for high speed user equipment The present invention provides methods, apparatuses and computer program product relating to avoiding Scell configuration for high speed user equipment. The present invention includes determining, at a user equipment located in a coverage area of a first base station and a second base station, a mobility state of the user equipment, if it is determined that the user equipment is in a high mobility state, enabling configuring only a primary serving cell at the first base station.

Abstract: It is described a method for managing a radio transmission between a base station and a user equipment, wherein a communication channel is used for the radio transmission, wherein the communication channel includes a plurality of channel resources and is based on a MIMO transmission scheme. The method includes dividing the plurality of channel resources into a set of channel resource regions, assigning a MIMO rank to each channel resource region, wherein the MIMO rank is indicative for a number of channel resources to be used for a radio transmission within a corresponding channel resource region, selecting a channel resource region for the radio transmission between the base station and the user equipment, and managing the radio transmission between the base station and the user equipment based on the selected channel resource region and the corresponding assigned MIMO rank.

Abstract: A method of sending information from a first base station to other base stations including sending information to a first plurality of the base stations at a first time; and sending said information to a different plurality of the base stations at a later time according to a predetermined sending pattern for timing sending of said information to different pluralities of the base stations at different times.

Abstract: There is provided a mechanism for controlling an autonomous mobility procedure of a user equipment. A list of candidate communication cells usable as target cells for the autonomous mobility procedure conducted by the UE is transmitted by the network to the UE. Furthermore, when the list is sent to the communication element, preparation information is sent to the candidate communication cells contained in the list sent to the user equipment for preparing the candidate communication cells for a potential autonomous mobility procedure conducted by the user equipment. When a cell is detected, the user equipment uses the list to determine whether the detected cell is a candidate cell for the autonomous mobility procedure. When the cell receives an access request, it uses the preparation information for determining that the requesting UE is conducting an autonomous mobility procedure, and obtains configuration date for immediately providing service to the user equipment.

Abstract: There is proposed a mechanism by means of which information can be generated and used for estimating and identifying at each base transceiver station of a communication network the set of other base transceiver stations generating interference on certain monitored component carriers used by the base transceiver station, i.e. information for the generation of the incoming uplink background interference matrix. For this purpose, a specific communication information set, referred to as uplink radio load map, is determined which informs about an average (time/frequency) and aggregated (over all or group of served UEs) uplink load measure per component carrier. Based on the uplink radio load map received via suitable signaling from other base transceiver stations, each base transceiver station can determine the incoming uplink background interference matrix and initiate, if necessary, suitable measures for reducing interference per component carrier.

Abstract: A rule specifies a timing relation between a measurement configuration which indicates at least one subframe to measure and a reporting configuration which indicates at least one subframe in which to report. This rule is used by both user equipment UE and network to map between a downlink subframe in which channel state information is measured and an uplink subframe in which the channel state information is reported. The network may configure the UE with the measurement and reporting configurations via dedicated signaling or broadcast. If the measurement configuration is periodic and indicates multiple downlink subframes to measure the rule results in a one to one mapping of downlink to uplink subframe where less than all of the multiple downlink subframes map to an uplink subframe; if aperiodic the rule indicates a single downlink subframe to measure.

Abstract: An apparatus and a method are described by which a request for providing aperiodic channel information with respect to a selected downlink component carrier of a plurality of component carriers is received, the selected downlink component carrier is determined, channel information with respect to the selected downlink component carrier is established, and the channel information with respect to the selected downlink component carrier is sent.

Abstract: A technique including: detecting at a communication device via a primary cell an identification of a plurality of cells operated at respective sites on the same radio resources as potential secondary cells for the communication device; subsequently detecting at the communication device via the primary cell an indication to perform one or more operations for one of the plurality of cells; and in response to the indication, automatically determining not to also perform the one or more operations for all other cells of the plurality of cells; wherein the one or more operations relate to the use of the one cell as a secondary cell for the communication device.

Abstract: A rule specifies a timing relation between a measurement configuration which indicates at least one subframe to measure and a reporting configuration which indicates at least one subframe in which to report. This rule is used by both user equipment UE and network to map between a downlink subframe in which channel state information is measured and an uplink subframe in which the channel state information is reported. The network may configure the UE with the measurement and reporting configurations via dedicated signaling or broadcast. If the measurement configuration is periodic and indicates multiple downlink subframes to measure the rule results in a one to one mapping of downlink to uplink subframe where less than all of the multiple downlink subframes map to an uplink subframe; if aperiodic the rule indicates a single downlink subframe to measure.

Abstract: The exemplary embodiments of the invention provide at least a method and an apparatus to perform operations including in response to an indication of a handover by a mobile device to another network cell, adjusting network measurement parameters from a first configuration to a second configuration based at least on a cell type of the another network cell, and performing measurements in the another network cell using the adjusted measurement parameters. In addition, the exemplary embodiments of the invention provide at least a method and apparatus to perform operations including determining, by a network node, an optimal measurement configuration to be used in another network cell based at least on a cell type of the another network cell, and sending information including an indication of the measurement configuration towards a mobile device.

Abstract: An apparatus and a method are described by which a request for providing aperiodic channel information with respect to a selected downlink component carrier of a plurality of component carriers is received, the selected downlink component carrier is determined, channel information with respect to the selected downlink component carrier is established, and the channel information with respect to the selected downlink component carrier is sent.

Abstract: When it is determined that a first estimate of the total level of interference towards transmissions associated with a first access node from transmissions associated with other access nodes exceeds a predetermined target maximum value; then in dependence on the extent to which said first estimate exceeds said target maximum value, selecting one or more of said other access nodes to which to make a request to reduce the transmission power of interfering transmissions, and/or selecting an amount by which to request any one or more of said other access nodes to reduce the transmission power of interfering transmissions.