Abstract: An apparatus and method for initialization and mapping of reference signals in a communication system. In one embodiment, the apparatus includes a processor and memory including computer program code. The memory and the computer program code are configured to, with the processor, cause the apparatus to generate a reference signal employable with a plurality of physical resource blocks corresponding to a bandwidth of a communication system, and allocate resource elements of an assigned physical resource block from the plurality of physical resource blocks to a user equipment. The memory and the computer program code are further configured to, with the processor, cause the apparatus to generate a dedicated reference signal for the user equipment by allocating elements of the reference signal in accordance with allocated resource elements of the assigned physical resource block.

Abstract: A scrambling sequence is initialized using at least a cell identifier and an offset, and a physical downlink control information DCI is sent to a user equipment which indicates the offset. In more particular embodiments a user equipment-specific reference signal UE-RS is scrambled using the initialized scrambling sequence, and the scrambled UE-RS is sent to the UE for demodulating a downlink shared channel (PDSCH). In another exemplary embodiment the generated UE-RS is sent in a pilot part of a subframe transmission associated with the PDSCH and is for demodulating at least a data part of that subframe transmission. In a specific embodiment from the UE side, the UE receives the UE-RS and the DCI which indicates the offset, descrambles the UE-RS using a scrambling sequence that is initialized using a cell identifier and the indicated offset; and demodulates the PDSCH using the de-scrambled UE-RS.

Abstract: In accordance with the exemplary embodiments of the invention there is at least a method, apparatus, and computer program configured to compose signaling to include a component carrier indicator in a content of a downlink control information only when a size of an original part of a downlink control information on a scheduling component carrier is larger than or equal to an individual size of any corresponding downlink control information on at least one cross-scheduled component carrier, and to transmit the composed signaling to at least one user equipment.

Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by masking, such as cyclic redundancy check masking, to provide information regarding the antenna configuration and/or the transmission diversity scheme. In this regard, a set of masks can be determined based upon hamming distances between the masks and bit diversities between the masks and where each of the masks within the set is associated with an antenna configuration and a transmission diversity scheme.

Abstract: Method for transmitting system information from a base station BS, eNB to a user equipment UE, the method includes transmitting a system information SI within a period p, which system information comprises a first part of information MIB, wherein the first part of information comprises an identifier ID, which identifier identifies a modification status of the first part of information MIB, and adapting a boundary b upon which the period p terminates, and upon which a modified system information SI is valid, wherein adapting a boundary b is carried out based on the modification status of the first part of information MIB.

Abstract: An approach is provided for efficient signaling of redundancy version information. A redundancy version signaling module detects the start of a system information radio transmission window and assigns a redundancy version sequence at the start of the transmission window.

Abstract: A method for maintaining synchronization of a user terminal (UE) in a radio communication system is proposed, wherein resources reserved for transmissions of random access signals are divided into at least one first portion for contention-based communication, and at least one second portion of said resources for contention-free communication, and wherein a user terminal (UE) is assigned at least one resource of the portion assigned to the contention-free communication, for transmitting signals for maintaining synchronization.

Abstract: A method controls a time-based transmission of signals of a subscriber terminal for synchronous reception at a base station of a radio communication system. Upon detection that a determined time offset of received signals is equal to or greater than a predetermined threshold value, a change from one-step control commands to multi-step control commands for controlling the time-based transmission of the subscriber terminal is performed by the base station, or a synchronization procedure is initiated by means of a randomly chosen access channel by the subscriber terminal.

Abstract: In one exemplary embodiment, a method includes: inserting an indication of a cyclic prefix length into a transmission; and sending the transmission. In another exemplary embodiment, a method includes: receiving a transmission; and processing the received transmission to obtain an indication of a cyclic prefix length.

Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by appropriately mapping a physical broadcast channel within a sub-frame so as to include reference signals indicative of different antenna configurations or transmission diversity schemes. Alternatively, masking, such as cyclic redundancy check masking, can be used to provide information regarding the antenna configuration and/or the transmission diversity scheme.

Abstract: A method, user equipment, network device, and software product employ indicators from a plurality of respective cells to indicate a difference, if any, regarding allocation in the respective cell as compared to neighbor cells. Mobility measurements are then performed according to the indicators, and also on the basis of configuration of a cell where the measurements are performed.

Abstract: A method for data transmission in a radio communication system, in which data of a plurality of subscribers is combined with the aid of a multiplexing method to form frames, and is transmitted by means of sub-carriers. At least two frame structures are provided for transmission of the frames, with the frame structures differing in the respectively associated number of pilot signals and/or in the distribution or grouping of associated pilot signals. Each subscriber determines an individual progress speed, and each subscriber is allocated to one of at least two speed ranges, depending on the progress speed. A frame structure which is individually associated with the speed range, on the one hand, and an individually associated number of sub-carriers, on the other hand, are used in order to transmit the data from subscribers who are allocated to an identical speed range on the basis of their progress speed.