Abstract: Embodiments of the present disclosure provide methods and apparatuses for data processing in a communication system. For example, the method comprises: generating, based on an intended performance, an error detection code to be used; distributing bits of the error detection code in information bits to be coded; and perform polar encoding on the information bits together with the error detection code distributed in the information bits. The embodiments of the present disclosure also provide a communication device capable of implementing the method.

Abstract: An apparatus includes a multi-mode optical fiber having a selected plurality of optical propagating modes. The selected plurality may include only a proper subset of or may include all of the optical propagating modes of the multi-mode optical fiber. Each optical propagating mode of the selected plurality has a group velocity that varies over a corresponding range for light in, at least, one of the optical telecommunications C-band, the optical telecommunications L-band, and the optical telecommunications S-band. The ranges corresponding to different ones of the modes of the selected plurality are non-overlapping. The ranges of a group velocity-adjacent pair of the ranges are separated by a nonzero gap of less than about 10,000 meters per second.

Abstract: The present disclosure generally discloses improvements in computer performance for supporting a multipath transport throughput capability that is configured to improve throughout of a multipath transport connection of a multipath transport protocol. The multipath transport throughput capability is configured to improve the throughput of the multipath transport connection by improving delivery of acknowledgment packets acknowledging successful delivery of data packets sent from a data transmitting side to a data receiving side.

Abstract: A method is provided for determining delay between random access channel and downlink control channel in random access procedures. The method comprises receiving from a base station, by a user equipment, information related to one or more delay(s) between a random access channel and one or more repetition period(s) of a downlink control channel for the user equipment; sending to the base station, by the user equipment, the random access channel transmitted in a repetitive form; receiving, by the user equipment, the one or more repetition period(s) of the downlink control channel, wherein each of the one or more repetition period(s) of the downlink control channel is transmitted according to a corresponding one of the delay(s); and determining, by the user equipment, the one or more delay(s) based at least on the information related to the delay(s).

Abstract: The invention proposes a method of and apparatus for a pre-coded physical downlink control channel reference signal and blind decoding. In a design of the reference signal, the demodulation reference signal is used for demodulating physical downlink control channel signaling, wherein the physical downlink control channel signaling is embedded in a physical downlink shared channel, an the demodulation reference signal is included in a control channel element.

Abstract: An apparatus, such as a base station or a user equipment, includes a transceiver configured to receive a first signal that is a superposition of symbols transmitted concurrently by users in shared resources of an air interface. The apparatus also includes a processor configured to iteratively cancel, for the users, interference produced by the symbols transmitted by other users on the basis of log likelihood ratios (LLRs) that represent likelihoods that previous estimates of the symbols transmitted by the other users are correct. The processor is also configured to iteratively decode the symbols transmitted by the users after canceling the interference produced by the symbols transmitted by the other users.

Abstract: Embodiments of the present disclosure relate to a method, system and device for online charging in a cloud system. The method comprising: in response to a request for a cloud service in the cloud system from a user, transmitting to an online charging system of the cloud system a message indicating the user and the cloud service; receiving from the online charging system a quota related to the cloud service, the quota indicating a limit for the user to use the cloud service; and providing the cloud service to the user based on the quota. The embodiments of the present disclosure overcome defects of postpaid cloud service charging and billing-based scheme in traditional solutions, and can implement cloud service charging of any type.

Abstract: Embodiments of the present disclosure relates to a communication device working on unlicensed frequency band and a method for executing the same. The method comprises: determining a mapping relationship between multiple quality of service (QoS) priority classes and multiple Listen-Before-Talk (LBT) priority classes, wherein the multiple QoS priority classes are in one-to-one correspondence with multiple QoS requirements; and transmitting radio traffic based on the mapping relationship. Embodiments of the present disclosure proposes the mapping relationship between LBT priority class and various QoS priority classes associated with different radio traffic types and presents signaling design and exchange related to the mapping relationship.

Abstract: In one embodiment, the method includes inserting an access node along a subscriber loop, the access node including a bypass switch for initially connecting a terminal segment of the subscriber loop to a network segment of the subscriber loop; operating a legacy communication service over the subscriber loop; and connecting a PSE for reverse power feeding of the access node and a new subscriber device for operating the new broadband communication service to the terminal segment.

Abstract: In an embodiment, a method for restoration of MT (Mobile Terminating) CS services in case of failure of a PS Core Network CN entity, referred to as original CN entity, originally identified as to be contacted for a paging request towards a User Equipment UE for said MT CS services, in a mobile communication system, comprises: providing that an alternative CN entity is contacted instead of said original CN entity, and that said alternative CN entity is forced to accept said paging request even if said UE is unknown to said alternative CN entity.

Abstract: The present invention relates to a method and an apparatus for implementing Listen-Before-Talk. According to an embodiment of the present invention, if the channel assessment does not stop at a boundary of the first symbol, the preamble comprises at least a first part, and if the channel assessment stops at the boundary of the first symbol, the preamble comprises a second part. And the first part is transmitted on a remaining portion of the first symbol until the end of the first symbol, and the second part is transmitted on at least one symbol following the first symbol. Besides, the data is transmitted to the receiving device in at least one symbol in the subframe in which the preamble transmission ends.

Abstract: A method, device and computer program for generating wireless signals for testing a network node for transmitting Narrow Band Internet of Things signals, for compliance with predetermined criteria, the network node being configured to support multiple carriers and to support operation within at least one radio frequency bandwidth. The method comprises: controlling a wireless signal generator to generate one test signal in a frequency band towards one edge of one of the at least one radio frequency bandwidth and one further test signal in a frequency band towards the other edge of the same one of the at least one radio frequency bandwidth, the one test signal comprising a Narrowband Internet of Things test signal.

Abstract: The application is related to a forward error correction mechanism in an optical coherent communication system (CS) comprising a FEC encoder (FE) and a FEC decoder (FD) on the basis of a low density parity check, LDPC, code. The FEC encoder encodes blocks of client bits into codewords by adding parity bits calculated by applying a FEC code to the client bits. Besides, the FEC decoder decodes each codeword by applying thereto an iterative message-passing algorithm, each iteration of the message-passing algorithm comprising evaluating a parity-check matrix defining the FEC code. At the FEC encoder, the coding rate of the FEC code may be varied by varying the number of client/information bits per codeword and/or the number of parity bits per codeword. At the FEC decoder, the parity-check matrix is evaluated column by column at each iteration of the message-passing algorithm. The decoder may be a belief propagation decoder.

Abstract: There is described therein a method of roaming between 5G networks operator for selecting a network operator in a visited country when a mobile network user exits an area covered by a home network operator to enter the visited country covered by a plurality of visited network operators. This method of roaming is based on the concordance between the VNF supported by the visited country network and the network profile of the user. The network profile of the user embeds both the functions commonly chained in his home network to deploy the services corresponding to his usage and the functions required in the visited country network to perform the services desired by the user. Therefore, by matching this profile with VNF capabilities deployed by a network the invention allows a better user satisfaction in roaming situations providing them with the most suitable network.

Abstract: A control method includes obtaining from each access point of a plurality of access points at least one traffic parameter, the at least one traffic parameter being representative for a traffic load of the respective access point; identifying from the plurality of access points a target access point having a highest traffic load, based on said obtained at least one traffic parameter; defining for each access point of the plurality of access points a corresponding interference threshold; setting a transmit power of the target access point to a target transmit power and assigning to the target access point a target communication channel from among a plurality of communication channels, such that an interference at any one access point of the plurality of access points is lower than the corresponding interference threshold of the any one access point.

Abstract: The present disclosure generally discloses a network infrastructure virtualization mechanism configured to support virtualization of the network infrastructure (NI) of a communication network to provide thereby a virtualized infrastructure (VI) for the communication network. The network infrastructure virtualization mechanism may be configured to support virtualization of infrastructure resources (IRs) of the network infrastructure to provide virtualized infrastructure resources (VIRs) of the network infrastructure. The IRs of the communication network may include network resources (NRs) which may be virtualized to provide virtualized network resources (VNRs) and service resources (SRs) which may be virtualized to provide virtualized service resources (VSRs).

Abstract: The present disclosure provides methods and apparatuses for HARQ retransmission on an unlicensed carrier in an LTE-LAA system. A method in the base station includes: performing a CCA detection on the unlicensed carrier to determine energy on the unlicensed carrier and, at the same time, initiating an HARQ discarding timer for the unlicensed carrier, when the base station and a UE operate on the unlicensed carrier; comparing the determined energy with a predetermined CCA threshold; if the determined energy on the unlicensed carrier is not smaller than the CCA threshold until the HARQ discarding timer is expired, giving up the HARQ retransmission on the unlicensed carrier; and if the energy is detected to be smaller than the CCA threshold before the HARQ discarding timer is expired, continuing the HARQ retransmission on the unlicensed carrier.

Abstract: Embodiments relate to apparatuses (10; 20), methods and computer programs for determining transmission control information. The Apparatus (10) is suitable for a base band unit (110) of a base station transceiver (100) of a mobile communication system (300), the base station transceiver (100) further comprising one or more radio units (120) configured to wirelessly communicate with the base band unit (110) using one or more wireless fronthaul links. The apparatus (10) comprises at least one output (12) configured to transmit a downlink component of the one or more wireless fronthaul links to the one or more radio units (120). The apparatus (10) further comprises at least one input (14) configured to receive an uplink component of the one or more wireless fronthaul links from the one or more radio units (120). The apparatus (10) further comprises a control module (16) configured to control the at least one output (12) and the at least one input (14).

Abstract: To send a message to a communication device (17) associated with a moving object (16) a method comprising several steps is proposed. In a first step, a first location trajectory (3) of this object (16) is obtained by a first party (1). In a second step, this trajectory (3) is sent (9) from this first party (1) to a second party (2). Then, the second party (2) obtains (8) a set of second location trajectories (6) of tracked communication devices (19) and compares the first location trajectory (3) with this set. Next, the second party (2) selects a selected location trajectory (5) of a selected communication device (17) from the set if this selected location trajectory (5) is substantially the same as the first location trajectory (3). This selected communication device (5) corresponds to the communication device (5). At the end, the message is sent to the selected communication device (5) by the second party (2).

Abstract: Circuitry, method and computer program for reducing distortions in a plurality of amplified signals to be radiated by a multiple antenna system. The circuitry comprising: a plurality of inputs for receiving digital signals for a plurality of forward data paths; routing circuitry for routing the digital signals received at the plurality of inputs to pre-distortion logic for applying a pre-distortion function to each of the signals, the pre-distortion logic being operable to forward each of the signals towards a digital to radio frequency converter and subsequent amplifier for amplifying the signals prior to the signals being radiated; one or more feedback paths each comprising processing logic for comparing a feedback signal generated from one of the amplified signals with a corresponding signal received at one of the inputs to determine a function to be applied by the pre-distortion logic to the input signal; selecting logic for selecting the input signal to be provided with the feedback.