Abstract: The disclosure provides a method for assisting a UE to implement a UL channel access in a base station of an eLAA-based communication system. The method comprises determining a listen-before-talk (LBT) priority for the UE; and transmitting a first signaling indicating the determined LBT priority to the UE. An enhanced UL channel access mechanism is proposed by the dis-closure. In this mechanism, the eNB call provide some assistance to facilitate UL access. Chances of multiple user multiplexing and spectrum efficiency in LAA UL can be improved by this solution.

Abstract: Embodiments of the present disclosure relate to resource scheduling between network nodes. In example embodiments, a method comprises allocating, at a first network node, a first set of resources from a first resource pool for backhaul communication with a second network node in a network via a first link, the first resource pool comprising uplink and downlink resources shared with a first terminal device served by the first network node; transmitting a first indication of the first set of resources to the second network node; and receiving a second indication of a second set of resources from a second resource pool for the backhaul communication with the second network node via a second link, the second resource pool comprising uplink and downlink resources shared with a second terminal device served by the second network node. In this way, it is possible to achieve flexible resource scheduling among the network nodes.

Abstract: Embodiments of the present disclosure disclose a method and apparatus for determining a channel sensing threshold in uplink channel detection of licensed-assisted access. The method comprises determining one or more parameters associated with the user equipment; and determining a channel sensing threshold for the user equipment based on at least one of the one or more parameters. The threshold determination method may realize suitable threshold determination, flexible channel access, and balance of channel access opportunity among a plurality of radio access points.

Abstract: Embodiments of the present application provide a method and an apparatus for transmitting and receiving a sounding reference signal, the transmitting method including: receiving, by a terminal equipment, configuration information of one or more sounding reference signals used for antenna switching transmitted by a network device; and transmitting, by the terminal equipment, transmit a sounding reference signal to the network device according to the configuration information by using one or more sounding reference signal resources, wherein a guard period is configured between adjacent sounding reference signal resources when transmitting the sounding reference signal for antennas of the terminal equipment.

Abstract: Embodiments of the present disclosure relate to a method, a device and a computer-readable medium for guaranteeing communication service. According to embodiments of the present disclosure, a source network device that currently serves the terminal device transmits, to a target network device which will serve the terminal device, information about the amount of resources of network slices utilized by the terminal device. The target network device configures the amount of resources based on the information. In this way, successful handover of the terminal device from the source network device to the target network device is guaranteed, so as to ensure continuity of communication services of the terminal device. In addition, embodiments of the present disclosure creates a network slice in the target network device, which avoids possible interruptions of communication service caused by mapping from the terminal device to the slices supported by the target network device.

Abstract: Methods and apparatuses for transmitting and receiving uplink signals. The method for transmitting includes: receiving by a terminal equipment a first signal transmitted by a network device, the first signal being at least used for the terminal equipment to determine whether to perform channel detection and/or how to perform channel detection before transmitting a second signal; and transmitting the second signal by the terminal equipment to the network device by using an uplink resource.

Abstract: Embodiments of the present disclosure provide a method, device and computer readable storage medium implemented at a relay device. According to embodiments of the present disclosure, the relay device determines whether a terminal device served by a network slice has to be handed over. In a case of determining that the terminal device has to be handed over, the relay device sends a request for local information to at least one candidate relay device, and the local information includes at least one of information associated with a backhaul link from a candidate relay device to a network device and slice configuration information of the candidate relay device. Based on the received local information, the relay device determines a candidate relay device for handover of the terminal device.

Abstract: Embodiments of the present disclosure relate to resource scheduling between network nodes. In example embodiments, a method comprises allocating, at a first network node, a first set of resources from a first resource pool for backhaul communication with a second network node in a network via a first link, the first resource pool comprising uplink and downlink resources shared with a first terminal device served by the first network node; transmitting a first indication of the first set of resources to the second network node; and receiving a second indication of a second set of resources from a second resource pool for the backhaul communication with the second network node via a second link, the second resource pool comprising uplink and downlink resources shared with a second terminal device served by the second network node. In this way, it is possible to achieve flexible resource scheduling among the network nodes.

Abstract: Embodiments of the present disclosure provide a method and apparatus for transmitting uplink grant, the method comprising: transmitting the uplink grant by selecting a downlink subframe from a plurality of candidate downlink subframes each of the plurality of downlink subframes enabling scheduling of at least one user equipment to start transmitting burst data in a uplink subframe.

Abstract: Embodiments of the present disclosure relate to a method, a device and a computer-readable medium for guaranteeing communication service. According to embodiments of the present disclosure, a source network device that currently serves the terminal device transmits, to a target network device which will serve the terminal device, information about the amount of resources of network slices utilized by the terminal device. The target network device configures the amount of resources based on the information. In this way, successful handover of the terminal device from the source network device to the target network device is guaranteed, so as to ensure continuity of communication services of the terminal device. In addition, embodiments of the present disclosure creates a network slice in the target network device, which avoids possible interruptions of communication service caused by mapping from the terminal device to the slices supported by the target network device.

Abstract: Embodiments of the present disclosure provide a method and apparatus of obtaining feedback of HARQ acknowledgment information. The method comprises allocating to UE an uplink control channel resource for report of HARQ acknowledgment information related to downlink data transmission on an unlicensed carrier. The method also comprises obtaining feedback of the HARQ acknowledgment information from the UE within a predefined deferral window. The predefined deferral window specifies a minimum delay and a maximum delay for report of the HARQ acknowledgment information. The embodiments of the present disclosure may increase the reliability and reduce the latency of HARQ acknowledgment information feedback. In addition, the embodiments of the present disclosure may not only be for LAA scenarios, but also may be extended to standalone LAA access scenarios on unlicensed carriers.

Abstract: The present invention relates to a method and an apparatus for occupying an unlicensed band channel, thereby avoiding misjudgment of an occupied unlicensed band state. A method for occupying an unlicensed band channel includes: a user equipment receiving a power increase rate of a reference signal transmission unit of an unlicensed band channel determined by a secondary cell (Scell) base station; the user equipment receiving, in the unlicensed band channel, a sub-frame of reference signal transmission unit level power distribution sent by the Scell base station; the user equipment decoding the power increase rate; and the user equipment using the power increase rate to process the sub-frame.

Abstract: Embodiments of the present disclosure provide a method, device and computer readable storage medium implemented at a relay device. According to embodiments of the present disclosure, the relay device determines whether a terminal device served by a network slice has to be handed over. In a case of determining that the terminal device has to be handed over, the relay device sends a request for local information to at least one candidate relay device, and the local information includes at least one of information associated with a backhaul link from a candidate relay device to a network device and slice configuration information of the candidate relay device. Based on the received local information, the relay device determines a candidate relay device for handover of the terminal device.

Abstract: Embodiments of the present disclosure relate to a method and device for backhaul transmission. In example embodiments, the first network device transmits uplink (UL) data to a second network device in a first UL backhaul link, the first UL backhaul link being scheduled by the first network device. The second network device is located in upstream of the first network device. The first network device receives downlink (DL) data from the second network device in a first DL backhaul link. The first DL backhaul link is scheduled by the second network device. In this way, the transmission latency may be reduced, and the transmission efficiency may be improved.

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: The disclosure provides a method for assisting a UE to implement a UL channel access in a base station of an eLAA-based communication system. The method comprises determining a listen-before-talk (LBT) priority for the UE; and transmitting a first signaling indicating the determined LBT priority to the UE. An enhanced UL channel access mechanism is proposed by the disclosure. In this mechanism, the eNB can provide some assistance to facilitate UL access. Chances of multiple user multiplexing and spectrum efficiency in LAA UL can be improved by this solution.

Abstract: Embodiments of the present disclosure provide a method and apparatus of obtaining feedback of HARQ acknowledgment information. The method comprises allocating to UE an uplink control channel resource for report of HARQ acknowledgment information related to downlink data transmission on an unlicensed carrier. The method also comprises obtaining feedback of the HARQ acknowledgment information from the UE within a predefined deferral window. The predefined deferral window specifies a minimum delay and a maximum delay for report of the HARQ acknowledgment information. The embodiments of the present disclosure may increase the reliability and reduce the latency of HARQ acknowledgment information feedback. In addition, the embodiments of the present disclosure may not only be for LAA scenarios, but also may be extended to standalone LAA access scenarios on unlicensed carriers.

Abstract: Embodiments of the present disclosure disclose a method and apparatus for determining a channel sensing threshold in uplink channel detection of licensed-assisted access. The method comprises determining one or more parameters associated with the user equipment; and determining a channel sensing threshold for the user equipment based on at least one of the one or more parameters. The threshold determination method may realize suitable threshold determination, flexible channel access, and balance of channel access opportunity among a plurality of radio access points.

Abstract: Embodiments of the present disclosure provide a method and apparatus for transmitting uplink grant, the method comprising: transmitting the uplink grant by selecting a downlink subframe from a plurality of candidate downlink subframes each of the plurality of downlink subframes enabling scheduling of at least one user equipment to start transmitting burst data in a uplink subframe.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for listening before talk (LBT). A method of LBT is provided. The method comprises: determining an access priority class based on a plurality of types of traffic to be transmitted on a plurality of carriers; determining a LBT parameter based on the determined access priority class; and performing the LBT using the LBT parameter.