Abstract: The present disclosure provides a method and an apparatus for determining a Listen Before Talk (LBT) mode, as well as a method for LBT mode switching. The method includes: determining (100) an LBT mechanism and/or an LBT mechanism parameter set based on related indication information and/or priority information and/or measurement information; and performing (101), by a transmitting device, contention-based channel access based on the determined LBT mechanism and/or LBT mechanism parameter set. With the present disclosure, an LBT mode can be determined. With the selection of the LBT mode, it is possible to avoid waste of channel resources and indication information due to an improper LBT mode, thereby improving an efficiency of contention-based channel access.

Abstract: The present disclosure provides a clear channel assessment detection method and apparatus. The method includes: acquiring a clear channel assessment (CCA) detection pattern or a Muting pattern; and performing a CCA detection to an unlicensed carrier channel on resources corresponding to one of the CCA detection pattern or the Muting pattern.

Abstract: An unlicensed carrier processing method and apparatus are provided. In the method, a site implements a Clear Channel Assessment (CCA) and/or evolved CCA (eCCA); and the site occupies an unlicensed carrier based on a predetermined granularity, and/or occupies an unlicensed carrier based on a declared time length.

Abstract: Embodiments provide a contention-based access method and device, which include that: a transmission node acquires predefined information; and the transmission node performs contention-based access according to the predefined information, wherein the predefined information includes at least one of: a frame structure, a data transmission subframe location, a data type, dedicated indication signaling, a frame scheduling manner and data transmission. Listen Before Talk (LBT) different from Downlink (DL) is adopted, and a flow is simplified when Uplink (UL) LBT is executed, so that the problems of poor UL performance and low spectrum efficiency caused by adoption of DL LBT for UL in the related solution may be solved.

Abstract: A spectrum resource allocation method and apparatus are provided. The method includes: determining a resource allocation pattern of nodes according to a preset parameter, wherein the preset parameter comprises at least one of: a starting position of a frequency domain or an offset of the frequency domain, an ending position of the frequency domain, a length of consecutively allocated resources or a size of consecutively allocated clusters, a number of clusters or a number of resource sets, a period T, a number of multiplexing nodes in frequency domain resources, or a number of allocatable resources in a system; and obtaining a corresponding resource allocation indicator value r by the resource allocation pattern determined by at least one of the preset parameters in a preset encoding mode. The resource allocation indicator value r is used for indicating resource position information allocated to a terminal UE.

Abstract: An unlicensed carrier contention method and apparatus are provided. The method comprises that: a Licensed Assisted Access (LAA) device implements a Clear Channel Assessment (CCA) or an Evolution Clear Channel Assessment (eCCA) on a channel; if the result of the assessment is ‘idle’, the LAA device decrement N and determines whether or not the decremented N is greater than 0, wherein N is a natural number; and if the result of the determination indicates that the decremented N is not greater than 0, the LAA device uses an unlicensed carrier for data transmission. The disclosure addresses the problem that no contention withdrawal mechanism or procedure suitable for an LAA system is provided in the conventional art.

Abstract: Provided are a data transmission method and device, a base station, and a User Equipment (UE). The method includes: sending a pre-scheduling signaling to a UE before competing for an unlicensed carrier, the pre-scheduling signaling for instructing the UE to transmit data on an unlicensed resource obtained by competition; and transmitting the data with the UE according to the pre-scheduling signaling.

Abstract: Some embodiments provide a data transmission method and a data transmission site. In the method, a sub-frame occupation strategy is determined after a data transmission site successfully preempts an unlicensed carrier by executing Clear Channel Assessment or Extended Clear Channel Assessment (CCA/eCCA); and data transmission is performed according to the sub-frame occupation strategy.

Abstract: The present disclosure provides a method and an apparatus for acquiring a resource. Herein, the method includes the following steps: acquiring a resource request index and a contention opportunity set (100); acquiring a number of maximum contention times (101); determining a contention opportunity that UE participates in contention according to the acquired resource request index, the contention opportunity set and the number of the maximum contention times; and acquiring a resource for sending data by using the contention opportunity (102). By means of the present disclosure, since UE can participate in contention for the contention opportunity set only after acquiring information about the number of the maximum contention times, the problem of collision, i.e., contention conflict caused by a reason that a plurality of UEs contend for the same contention opportunity can be easily reduced.

Abstract: A method and apparatus for sending information are provided, herein the method for sending information includes: the sending end using a physical control channel (PDCCH) or an enhanced physical control channel (ePDCCH) or downlink control information (DCI) transmitted in the agreed resources to describe the information about time that the unlicensed carriers are occupied; the sending end sending the DCI information through licensed carriers or the unlicensed carriers; herein, the information about time includes: a starting subframe occupying an unlicensed carrier and the number of subframes that are continuously occupied starting from the starting subframe. Through the present disclosure, how to enable base stations to mutually inform about an occupation situation of the unlicensed carrier in the related art is achieved, the coordination and utilization of the unlicensed carriers in a wireless communication system are simplified the utilization rate of the unlicensed carriers is improved.

Abstract: A method and apparatus for transmitting and receiving a data transport block are described. The method includes: determining (S102) cells of a first type supporting transmission of scheduling allocation signaling and cells of a second type supporting only data transmission; transmitting (S104) scheduling allocation signaling of a first type and one or more scheduling allocation signaling of a second type on the cells of the first type; and transmitting the data transport block on the cells of the second type according to the scheduling allocation signaling of the first type, and transmitting the data transport block on the cells of the first type and/or the cells of the second type according to the scheduling allocation signaling of the second type.

Abstract: Disclosed are a method for sending information, a method for receiving information, an apparatus and a system, herein the method for sending information includes the following steps: a sending end using Downlink Control Information (DCI)/Uplink Control Information (UCI) to describe information about time that an unlicensed carrier is occupied; and the sending end sending the DCI/UCI information through an licensed carrier or the unlicensed carrier.

Abstract: A resource obtaining method includes: obtaining a right to use an unlicensed carrier resource through a fallback operation in a contention time window; when the fallback operation in the contention time window succeeds, performing monitoring for a time length of T1; when it is found that the unlicensed carrier resource is idle through monitoring, determining that the obtaining of the right to use the unlicensed carrier resource succeeds. Also described are a station and a computer storage medium.

Abstract: The present document discloses a hybrid automatic repeat request process indication method, apparatus and system. Herein the method includes: a base station configuring a plurality of carriers for a user equipment, herein the a plurality of carriers include one or more unlicensed carriers; and for each unlicensed carrier, the base station indicating to the user equipment a carrier for transmitting an HARQ process of the unlicensed carrier.

Abstract: Disclosed is a configuration method for implementing air interface synchronization including that: a network side determines the number of layers to which cells are divided in an Operation, Administration and Maintenance (OAM) manner or by a specified node, configures a monitoring subframe position for air interface synchronization to the cells of each determined layer, and sends or configures the number of layers and information of the monitoring subframe position configured for the cells of each layer; or, the network side determines a source cell configurable to be monitored by a local cell for air interface synchronization in the OAM manner, configures cell information corresponding to the source cell and configures the cell information to be the local cell; or, the specified node determines a source cell configurable to be monitored by a local cell for air interface synchronization, configures cell information corresponding to the source cell, and sends the cell information as the local cell.

Abstract: A method and apparatus for allocating resources to carrier response information feedback are disclosed. Wherein, when Transmit Power Control (TPC) command in Downlink Control Information (DCI) for each secondary component carrier in carrier aggregation is different, Physical Uplink Control Channel (PUCCH) resources allocated to the response information feedback of the secondary component carriers are high-layer configuration PUCCH resources designated by TPC command in the DCI which triggers data services in the secondary component carriers. The present solution can not only effectively feedback response information, but also can effectively suppress occurrence of unnecessary downlink retransmission.

Abstract: Provided are methods and devices for determining or acquiring radio resources. The method for determining radio resources includes that: predefined information is acquired, wherein the predefined information includes indication information of a dedicated node, and/or, measured values of Component Carriers (CCs) on a multisystem shared spectrum, wherein the indication information includes: information of the maximum number of CCs, which are available to a system, on the multisystem shared spectrum, and the measured values are acquired according to preset signals on the CCs; and the maximum number of CCs, which are available to a system, on the multisystem shared spectrum is determined according to the predefined information. By the technical solution, the problem of interference between systems may be solved, and spectrum utilization efficiency is improved.

Abstract: A method, device, and computer storage medium for air interface synchronization signaling processing are described in embodiments of the present invention. A cell obtains a location of a subframe used for air interface synchronization monitoring, and sends the air interfaces synchronization signaling of the cell at the location of the subframe, wherein the subframe used for air interface synchronization monitoring is a subframe of the cell. Other cells receive a reference signal used for air interface synchronization from the cell at the subframe.

Abstract: A method and system for wireless communication system provide for transmitting a scheduling grant to a User Equipment (UE) and configuring the UE with a configurable time offset. The method and system also provide for transmitting a scheduling grant to a node and configuring the node with a configurable time offset. The UE transmits or receives a communication scheduled by said scheduling grant, and this transmitting or receiving a communication is delayed from said transmitting a scheduling grant by the configurable time offset. The configurable time offset may be an integer of multiple orthogonal frequency division multiplexing (OFDM) symbols in some embodiments and postpones or adjusts the UE transmitting or receiving a communication, with respect to a regular start time based on the scheduling grant. The method and system find application in cross-carrier and cross-node systems.

Abstract: A method and system for PDSCH transmission and a network side device are provided. The method includes: a network side device determines a transmission parameter of a PDSCH according to information related to scheduled UE, the transmission parameter of the PDSCH including at least one of: a transmission manner of the PDSCH and a power ratio of a reference signal corresponding to the PDSCH to data corresponding to the reference signal (101), and the information related to the scheduled UE including at least one of: CSI reported by the UE, a TM of the UE, version and support capability information of the UE, type information of a serving cell where the PDSCH is located and type information of a subframe where the PDSCH is located; and the network side device performs resource mapping and sending according to the determined transmission parameter of the PDSCH (102).