Abstract: An information transmission method and apparatus are provided. The method includes receiving, by a distributed unit (DU), a first System Information (SI) request for target SI from a terminal and forwarding the first SI request to a centralized unit (CU). Upon reception of the first SI request, the CU transmits a first indication of whether to deliver the requested target SI to the terminal. The DU generates a first SI request response based on the first indication, and transmits the first SI request response to the terminal.

Abstract: An aspect of the disclosure provides a user equipment (UE) that includes processing circuitry. The processing circuitry of the UE determines whether to transmit service data associated with a service to a receiving device through a primary link or a sidelink. When the service data is determined to be transmitted through the sidelink, the processing circuitry selects a radio access technology (RAT) for implementing the sidelink from a plurality of available RATs according to a set of configuration parameters received from a network, determines communication parameters for the selected RAT based on quality of service (QoS) or service requirement related parameters included in the set of configuration parameters, and transmits the service data through the sidelink implemented by the selected RAT according to the communication parameters. When the service data is determined to be transmitted through the primary link, the processing circuitry transmits the service data through the primary link.

Abstract: Aspects of the disclosure provide methods, apparatuses and systems for wireless communication. In some embodiments, a wireless communication system includes processing circuitry. The processing circuitry of the wireless communication system operates based on a first radio access technology. The processing circuitry receives a sidelink control request from a first user equipment that accesses the wireless communication system using the first radio access technology. The sidelink control request requests sidelink control information for a second radio access technology. The processing circuitry then obtains the sidelink control information for the second radio access technology, and provides, via the first radio access technology, the sidelink control information for the second radio access technology, to the first user equipment. The sidelink control information is used to configure a sidelink between the first user equipment and a second user equipment using the second radio access technology.

Abstract: An uplink control plane signaling processing method and device for V2X services and a terminal are provided. When a base station indicates an uplink signaling reduction mechanism in first RRC signaling or second RRC signaling, a UE enables the uplink signaling reduction mechanism. The UE selects, based on macro cell uplink resources, to camp on a macro cell or to access a small cell controlled by a plurality of RSUs. The UE reports current location information through an X2 interface between the RSUs and an X2 interface between the RSU and the base station. The first RRC signaling is used for sending system information in system information broadcast.

Abstract: A method and system for processing control plane signaling in a Vehicle to Vehicle (V2V) transmission mechanism are provided. A base station configures a trigger condition for a user equipment (UE) based on resource situations. The UE receives the trigger condition, and reports current location information to the base station based on the trigger condition when the trigger condition is satisfied. The base station appropriately reduces control plane signaling overheads and the power consumption of the UE on the premise of ensuring the location accuracy of the UE by controlling the number of reports and reporting frequency of the UE based on the trigger condition, thereby achieving the objective of improving the overall utilization of radio resources and reducing the power consumption of the UE.

Abstract: A device-to-device (D2D) multi-carrier aggregation-based carrier set selection method and a related device are provided. A base station receives reporting information from a terminal, the reporting information comprising multiple carriers measured as meeting a reporting condition by the terminal; the base station selects, according to resource status of the multiple carriers, a carrier set for CA used for D2D communication of the terminal. The implementations of the disclosure also disclose a related device.

Abstract: Various communication systems may benefit from techniques and systems for resource allocation. For example, communication systems of the third generation partnership project may benefit from device to device discovery resource allocation methods and systems. A method can include determining that downlink data transmission may cause conflict between uplink control channel transmission and device to device discovery signal transmissions or that uplink shared channel transmissions may conflict with device to device discovery signal transmissions; and requesting a user equipment to report device to device discovery needs based on the determining.

Abstract: A method for resource scheduling and related products are provided according to implementations of the present disclosure. The method includes the following. A base station receives a scheduling request from a first terminal through higher layer signaling, where the scheduling request is sent by a second terminal to the first terminal, the first terminal is within coverage of the base station, and the second terminal is outside the coverage of the base station. The base station sends a scheduled resource through the higher layer signaling to the first terminal according to the scheduling request, where the scheduled resource is forwarded by the first terminal to the second terminal. By adopting the implementations of the present disclosure, an objective can be achieved that the base station directly schedules wireless resources configuration for the terminal outside the coverage of the base station in the relay scenario.

Abstract: The present disclosure provides a resource allocation method and system used for direct terminal-to-terminal communication, a device having base station functionality, and a terminal. The resource allocation method includes: obtaining time-frequency resource usage of the device having the base station functionality and/or state information of each D2D terminal within a coverage area of the device having the base station functionality; determining an allocation mode of allocating time-frequency resource to the each D2D terminal, according to the time-frequency resource usage of the device having the base station functionality and/or the state information of the each D2D terminal; and allocating time-frequency resource used for the direct terminal-to-terminal communication to the each D2D terminal according to the allocation mode, so as to enable the each D2D terminal to use the allocated time-frequency resource to perform the direct terminal-to-terminal communication.

Abstract: In one aspect of the disclosure, a channel detection method applied when an LTE system works in an unlicensed frequency band comprises determining a current sub-frame and a channel detection time when a data traffic arrives, wherein the channel detection time is set in at least one of the current sub-frame and a next adjacent sub-frame to perform channel state detection, and judging whether the terminal or base station that performs the channel state detection and other terminals or base stations belong to a same telecommunication operator in order to perform the channel state detection in a corresponding way; and performing data traffic transmission when it is detected that the channel is in an idle state. Other aspects of the disclosure relates to a terminal and a base station using the channel detection method.

Abstract: A method and apparatus can be configured to determine a redundancy rate. The method can also include mirroring an amount of data from a first node to a second node based upon the determined redundancy rate. The method can also include transmitting a last-data-unit index or a next-data-unit index.

Abstract: Provided is a channel detection notification method when a LTE system works at an unauthorized frequency band, a system and a base station. The channel detection notification method includes the follows. A primary cell base station receives RRM measuring results of multiple base stations at the unauthorized frequency band reported by a terminal; according to the RRM measuring results of the multiple base stations, a secondary cell base station is selected for the terminal; if it is determined that downlink traffic reaches a set first traffic threshold value, the secondary cell base station is informed to conduct downlink channel detection at the unauthorized frequency band; and if it is determined that uplink traffic reaches a set second traffic threshold value, the secondary cell base station and/or the terminal is informed to conduct uplink channel detection at the unauthorized frequency band.

Abstract: A fast-accessing method may comprise: establishing a first security connection between a first network node and a user equipment; obtaining first information from a second network node, wherein the first information comprises at least one of system information of the second network node and an identifier of a security algorithm selected by the second network node for the user equipment; providing second information to the second network node, in response to an indication of the second network node from the user equipment, wherein the second information comprises security information related to the user equipment; and sending the first information to the user equipment for establishing a second security connection between the user equipment and the second network node.

Abstract: A method and system for processing control plane signaling in a Vehicle to Vehicle (V2V) transmission mechanism are provided. A base station configures a trigger condition for a user equipment (UE) based on resource situations. The UE receives the trigger condition, and reports current location information to the base station based on the trigger condition when the trigger condition is satisfied. The base station appropriately reduces control plane signaling overheads and the power consumption of the UE on the premise of ensuring the location accuracy of the UE by controlling the number of reports and reporting frequency of the UE based on the trigger condition, thereby achieving the objective of improving the overall utilization of radio resources and reducing the power consumption of the UE.

Abstract: An uplink control plane signaling processing method and device for V2X services and a terminal are provided. When a base station indicates an uplink signaling reduction mechanism in first RRC signaling or second RRC signaling, a UE enables the uplink signaling reduction mechanism. The UE selects, based on macro cell uplink resources, to camp on a macro cell or to access a small cell controlled by a plurality of RSUs. The UE reports current location information through an X2 interface between the RSUs and an X2 interface between the RSU and the base station. The first RRC signaling is used for sending system information in system information broadcast.

Abstract: A radio resource management method, a radio resource management device, an equipment having base station functionality, a radio resource monitoring method, a radio resource monitoring device, and a terminal are provided. The method includes a first radio resource of the serving cell in which a terminal is located, and a second radio resource of any one of the neighboring cells in neighboring cells of the serving cell, are obtained; the first radio resource and the second radio resource are differentiated to obtain a target radio resource, and the target radio resource is transmitted to the terminal.

Abstract: Systems, methods, apparatuses, and computer program products for handling user equipment (UE) context for dual connectivity in, for example, enhanced small cell networks are provided. One method includes associating small cell identifiers that are assigned by an anchor evolved node B (eNB) with a unique cell identifier related to the anchor eNB, and reporting user equipment (UE) history information in dual connectivity mode to a target evolved node B (eNB). The UE history information comprises at least the unique cell identifier of the anchor eNB.

Abstract: Methods, corresponding apparatuses, and computer program products for ProSe communication are provided. A method comprises sending, from a first base station, a first configuration message to at least one of two user equipments which are performing ProSe communication over a first locally routed path via the first base station such that the two user equipments perform the ProSe communication over a second locally routed path via a second base station. The method also comprises sending, from the first base station, a second configuration message to the second base station such that the second base station is configured to support the two user equipments to perform the ProSe communication over the second locally routed path via the second base station.

Abstract: Systems and techniques for synchronization between in-coverage and out-of coverage user devices. A base station configures in-coverage and out-of coverage synchronization signals and configures user devices to recognize synchronization signals as in-coverage or out-of-coverage. An in-coverage device furnishes an in-coverage synchronization signal upon detection of an out-of coverage signal, and may continue to furnish the signal upon continued detection of an out-of-coverage signal that is not synchronized to the network. An out-of-coverage device may receive and synchronize to an in-coverage signal if available, or an out-of-coverage signal if available, or may generate and transmit its own out-of-coverage signal if no in-coverage or out-of-coverage signal is available.

Abstract: First and second level discovery messages for device-to-device discovery are determined to be going to be transmitted, resource(s) are requested for transmission of at least the second level discovery message, and allocated resource(s) of a second type are received. The first level discovery message is transmitted on either a selected resource of the first type or a selected one of the allocated resource(s). The second level discovery message is transmitted on a selected one of the more allocated resource(s) of the second type, A first level discovery message is received on a resource of either a first type or a second type. It is determined whether the received message is of interest or not and if the message is of interest, then it is determined whether a second level discovery message is available and if so, the second level discovery message is received on a resource of the second type.