Abstract: This application provides a method and apparatus for feeding back channel information for an unlicensed band and a communication system, wherein, a method includes: UE determines a subframe for feeding back channel information by UE according to configuration of an eNB; the UE detects whether there exists a predefined reference signal in the subframe for measuring channel quality; and when there exists the predefined reference signal in the subframe for measuring channel quality, the UE reports a channel quality measurement result of the subframe for measuring channel quality at the subframe for feeding back channel information. With the embodiments of this disclosure, errors of CQI measurement and report in using the LTE technology at an unlicensed band may be avoided.

Abstract: The present invention relates to a method for preparing graphene oxide by cutting an end face of a 3-dimensional carbon-based material by electrochemical oxidation and the graphene oxide prepared by the method.

Abstract: A terminal, includes a buffer status report table; at least another table for extended buffer status report; a receiver looks for an indication in a signaling received from a base station wherein the indication corresponds to a type of buffer status report table and selects a table from among the buffer status report table and the at least another table for extended buffer status report based on the indication corresponding to the type of buffer status report table, wherein the indication corresponding to the type of buffer status report table can be determined according to a type of the terminal; and an index sender sends the index to a base station an index obtained from the selected table according to an amount of data in a buffer of the terminal.

Abstract: A method and apparatus for generating a buffer status report and a communication system. The apparatus is applicable to user equipment and includes: a first determining unit configured to determine the transmission time interval for transmitting a buffer status report of a sidelink; a judging unit configured to judge whether there exists remaining configured sidelink grant; a second determining unit configured to determine the sidelink destination and its buffer size needing to be contained in the buffer status report according to a judgment result of the judging unit; a generating unit configured to generate the buffer status report according to the sidelink destination and its buffer size needing to be contained in the buffer status report determined by the second determining unit. Accordingly, a problem that a buffer status of a sidelink cannot be correctly reflected in a ProSe BSR by UE in reporting the ProSe BSR may be solved.

Abstract: An MAC control element (CE) uplink configuration method and device, and communications system, the method includes: when an MAC CE is activated, determining, by user equipment (UE), whether an uplink grant of a serving cell in an authorization frequency band exists; and when the uplink grant of the serving cell in the authorization frequency band exists and can accommodate the MAC CE, allocating, by the UE and for the MAC CE, the uplink grant of the serving cell in the authorization frequency band. An embodiment of the present disclosure improves reliability for transmitting the MAC CE, in an LAA system, and reduces unnecessary latency or failure.

Abstract: A method for triggering an aperiodic sounding reference symbol, includes: receiving a Downlink Control Information (DCI) indicating a transmission of an aperiodic Sounding Reference Symbol (SRS) from a base station which configures a resource used for transmission of the aperiodic SRS; maintaining the resource for transmitting the aperiodic SRS when there is at least one of a loss of uplink synchronization when a timer relating to the uplink synchronization expires and a failure in transmission of a scheduling request transmitted more than a predetermined number of times; and executing a random access procedure.

Abstract: Described is a method and system for displaying an unread message. The method for displaying an unread message includes: pulling an unread message in a lock screen state; and displaying a corresponding unread message application icon on a first active hotspot on a lock screen when an unread message exists, and otherwise, hiding the unread message application icon. The method for previewing an unread message includes: receiving information for activating an unread message application icon in a lock screen state, and displaying a detail entry containing a predetermined number of unread messages on a second active hotspot; dragging the unread message application icon to a third active hotspot to enter into a corresponding application main window, or dragging the unread message application icon to the detail entry to enter into a message window corresponding to the detail entry.

Abstract: A cell reselection method and apparatus, and a communication system. The cell reselection method includes: determining, by user equipment, a cell of signal strength greater than or equal to a predefined threshold value and supporting the ProSe; and reselecting the cell by the user equipment. By means of the embodiments of this disclosure, even though a cell with the greatest signal strength does not support ProSe, the user equipment can also reselect a new cell to perform ProSe.

Abstract: A method and apparatus for configuring discontinuous reception, and a communication system. The method includes: a base station respectively configures DRX parameters for a first part of resources and a second part of resources; or, a user equipment is configured with a set of DRX parameters, and the priority of a proximity based service and a cellular service is configured in the user equipment. By means of the embodiments of the present disclosure, even when the user equipment has only one receiving device, the problem of a time conflict in simultaneous reception of such as PDCCH and ProSe data can be solved.

Abstract: The present invention provides a reporting method of terminal Buffer State Report (BSR), obtaining method for obtaining the BSR from a base station, and corresponding terminal, base station, communication system. The terminal includes: buffer state index table; at least one extended buffer state index table; index table selector, selecting one of the index table from the said buffer state index table and the said at least one extended buffer state index table; index determination device, determining the index which is corresponding to the data quantity in the said index table according to the data quantity in the terminal buffer; index sender, sending the said index to the base station.

Abstract: A method and apparatus for acquiring hybrid automatic repeat feedback and a communications system. The method includes: transmitting uplink data in a certain uplink subframe and in a secondary serving cell at an unlicensed band; setting a variable for recording a feedback status of transmission of the uplink data as ACK in transmitting the uplink data; determining a downlink subframe corresponding to the uplink subframe; and decoding a PDCCH in the downlink subframe corresponding to the uplink subframe in the secondary serving cell at the unlicensed band, and not decoding a PHICH. After the user equipment transmits the uplink data in the serving cell at the unlicensed band, the user equipment may be guaranteed in correctly performing uplink transmission even though the subframe needed by the base station for transmitting the PHICH is occupied by another system.

Abstract: A method and apparatus for triggering a buffer status report and a communications system. The method includes: in a case where one or more radio access bearer(s) of user equipment based on an infrastructure mode is(are) converted into radio bears based on a device to device (D2D) communications mode and there exist available data to be transmitted in the PDCP entity or the RLC entity to which the at least one radio bearer based on the D2D communications mode corresponds, triggering a buffer status report for the D2D communications. Hence, the buffer status report for the D2D communications may be triggered or may be timely triggered, thereby avoiding a problem that the base station side is unable to obtain or unable to timely obtain data amounts of the D2D communications.

Abstract: A method for file block placement in a distributed file system network that includes a plurality of data storage nodes, the method comprising the steps of generating a plurality of file block placement options for a file block, each block placement option being associated with at least one of the data storage nodes, the file block placement options being based on a set of network parameters associated with the distributed file system, determining a cost valuation parameter associated with each of the plurality of file block placement options, and selecting one of the plurality of file block placement options based at least in part on the cost valuation parameter associated with each file block placement option.

Abstract: Systems and methods provide communications between applications in terminal nodes and applications agents in access nodes. The APP-agent cooperative communications can be used to improve quality of experience for users or the terminal nodes. An access node may, for example, have a parameterized scheduling system that incorporates information from the APP-agent cooperative communications in determining scheduling parameters. An application at a terminal node may, for example, modify requests for communication based on information about communication capabilities received from an access node. For APP-agent cooperative communications for multiple applications, an access node may include a master application agent to facilitate and coordinate communications to specific application agents that address APP-agent cooperative communications for specific applications.

Abstract: Embodiments of the present application provide a method of handover in device to device communication, a base station and a communication system. The method of handover includes: transmitting, by a source base station, a handover request for handing over UE, the handover request comprising information indicating the UE to perform D2D communication with paired UE; receiving a response of the handover request transmitted by one or more base stations, and selecting one of the base stations as a target base station; and handing over the UE to the target base station according to the response of the handover request transmitted the target base station. With the embodiments of the present application, the UE and the paired UE may be made to proceed with performing D2D communication in the target base station, thereby further saving signaling overhead, and reducing waste of resources.

Abstract: Embodiments of the present application provide a method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration. Wherein, the method includes: reconfiguring a TAG belonging to a secondary serving cell by terminal; and terminating, by the terminal, transmission of a periodic channel sounding reference signal Type-0 SRS in the secondary serving cell, and/or terminating, by the terminal, uplink non-adaptive retransmission in the secondary serving cell, after the terminal completes the reconfiguration of the TAG of the secondary serving cell and if a current TAG is a new one. With the embodiments of the present application, a problem of mutual interference with other terminal resulted from transmission of an uplink signal by the terminal in the secondary serving cell according to a wrong TA value may be avoided.

Abstract: The invention relates to an oxygen and nitrogen co-doped polyacrylonitrile-based carbon fiber and a preparation method thereof. The oxygen and nitrogen co-doped polyacrylonitrile-based carbon fiber is prepared by electrochemical modification of a raw-material polyacrylonitrile-based carbon fiber, such that the surface thereof has an active layer formed by oxygen-containing active functional groups and nitrogen-containing active functional groups, wherein the nitrogen-containing active functional groups are obtained by activation of the doped nitrogen inherently contained in the raw-material polyacrylonitrile-based carbon fiber by means of electrochemical modification.

Abstract: A base station configured for carrier aggregation, includes: a receiver; and processing circuitry coupled to the receiver and configured to: allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and obtain, responsive to the allocated uplink resources, a configured maximum output power for an activated serving cell configured with an uplink carrier, where the activated serving cell has non-adaptive retransmission of uplink data, or the activated serving cell where the base station schedules channel state information but no allocated uplink grant for transmitting data of an uplink shared channel.

Abstract: Systems and methods provide communications between applications in terminal nodes and applications agents in access nodes. The APP-agent cooperative communications can be used to improve quality of experience for users or the terminal nodes. An access node may, for example, have a parameterized scheduling system that incorporates information from the APP-agent cooperative communications in determining scheduling parameters. An application at a terminal node may, for example, modify requests for communication based on information about communication capabilities received from an access node. For APP-agent cooperative communications for multiple applications, an access node may include a master application agent to facilitate and coordinate communications to specific application agents that address APP-agent cooperative communications for specific applications. Similarly, a terminal node may use a master application and specific applications for APP-agent cooperative communications.

Abstract: Embodiments of the present disclosure provide a method and apparatus for allocating D2D resource in a handover procedure and a communication system. The method for allocating D2D resource in a handover procedure includes: a handover request containing handover preparation information is transmitted by a source base station to a target base station; the handover preparation information comprises auxiliary information for assisting the target base station in D2D resource configuration. Through the embodiments of the present disclosure, in a scenario where the user equipment performs D2D discovery or D2D communication, the target base station may accurately allocate suitable D2D resources even though a handover occurs.