Abstract: A method and apparatus for transmitting and receiving uplink control information. The method includes: determining a channel access type of an uplink control channel used for transmitting uplink control information by a terminal equipment; and detecting a channel according to the channel access type and transmitting the uplink control information to a network device after the channel is detected as being idle, or not detecting a channel according to the channel access type and transmitting the uplink control information to the network device. Hence, in some scenarios, uplink control information may be transmitted without detecting a channel, which may lower latency and improve transmission efficiency; and in some other scenarios, uplink control information may be transmitted after the channel is detected as being idle, which may avoid or lower interference and improve reliability of transmission.

Abstract: A signal transmission method, signal detection method and apparatuses thereof and communication system. The signal transmission apparatus includes a transmitting unit configured to transmit a synchronization signal (SS) block to a user equipment within a time window of a predetermined position in an SS block transmission period. Hence, UE cell search and measurement time is reduced, complexity at the UE is lowered, power consumption of the UE is lowered, cell handover is sped up, communication interruption is avoided, and currently at least one of existing problems is solved.

Abstract: Data transmitting/receiving apparatuses and methods and a communication system. The data transmitting method includes: in an inactive state, determining whether to maintain in the inactive state or enter an active state according to indication information of a network device or one or more parameters configured by the network device; and in the inactive state, transmitting data and/or a request message for entering the active state to the network device. Hence, data transmission may be performed in an appropriate state, without needing to restart connection at each time of data transmission; saved resources may be used for the data transmission, and time needed in performing identical data transmission may be reduced.

Abstract: A downlink data transmission method and apparatus and a communication system. The method includes: an anchor eNB determines a non-anchor eNB which is required to schedule downlink data of an UE according to a paging area information of the UE when the downlink data of the UE arrives; and the anchor eNB transmits a paging message to the non-anchor eNB, the paging message including a context of the UE and a data packet of the downlink data, so that the non-anchor eNB schedules the downlink data of UE according to the context of the UE. With the embodiments of this disclosure, a time for state transition from an idle state to a connected state for the UE is shortened, and control plane delay is reduced.

Abstract: An apparatus for transmitting and receiving signals, applicable to a first integrated access and backhaul node donor central unit (IAB-donor-CU) includes a first controller configured to: transmit a traffic offload request to a second TAB-donor-CU; and receive a reply of agreement of traffic offload or a reply of rejection of traffic offload transmitted by the second TAB-donor-CU.

Abstract: A message transmission apparatus, applicable to a first integrated access and backhaul node (IAB-node) includes: a receiver configured to: receive a second radio resource control (RRC) reconfiguration message for path migration of a second IAB-node while the first IAB-node is still connected with source parent node, the second radio resource control (RRC) reconfiguration message being transmitted by a donor central unit (donor-CU), the second IAB-node is a downstream child node of the first IAB-node; and receive a first RRC reconfiguration message for path migration of the first IAB-node, the first RRC reconfiguration message being transmitted by the donor-CU; and a transmitter configured to forward, to the second IAB-node, the second RRC reconfiguration message which is withhold until random access of the first IAB-node is successful.

Abstract: A method and apparatus for determining power, in which whether to increase target received power is determined according to a change of either of a selected SSB and a selected CSI-RS. Hence, the selected CSI-RS is taken into account, and power is increased as necessary and useless retransmission is avoided, thereby increasing the success rate of random access and reducing power consumption of the UE.

Abstract: A configuration and/or activation method for duplication transmission, method for duplication transmission and apparatuses thereof. A UE configured with operations of carrier aggregation and/or at least two pieces of connectivity is configured with a message for duplication transmission and/or activation/deactivation signaling for duplication transmission, hence, duplication transmission having three or more transmission legs may be supported. Certain embodiments provide a UE configured as multi-connectivity or carrier aggregation of multi-leg, a leg of relatively good quality may be used for duplication transmission of data, which may provide gains of the duplication transmission to reliability of data transmission.

Abstract: A measurement apparatus includes a receiver configured to receive configuration information for cell reselection or measurement in connected state transmitted by a network device, the configuration information comprising first indication information indicating one or more synchronization signal blocks to be measured, wherein one or more bits of the first indication information is/are set according to second indication information indicating a frequency-specific quasi-co-location relationship between synchronization signal blocks, and a processor configured to perform measurement according to the synchronization signal blocks to be measured indicated by the first indication information.

Abstract: An apparatus for conditional reconfiguration, applicable to at least one of a first IAB-node, a child IAB-node of the first IAB-node and a terminal equipment served by the first IAB-node or the child IAB-node, includes a memory, and a processor coupled to the memory and configured to select one of first cell(s) fulfilling conditional reconfiguration condition(s) from conditional reconfiguration candidate cells as a second cell, and initiate conditional reconfiguration execution on the second cell.

Abstract: An apparatus for transmitting and receiving signals, applicable to an integrated access and backhaul node (IAB-node), includes a processor configured to, when a destination BAP address of a first path of the IAB-node is unreachable, change routes of first path data, and a transmitter configured to, based on the changed routes, transmit the first path data.

Abstract: An apparatus for transmitting and receiving signals, the apparatus being applicable to a process of migrating an IAB-node under control of a first donor central unit (donor-CU) from a first distribution unit (DU) to a second DU, and being arranged in the first donor-CU, wherein the apparatus includes a memory, and a processor coupled to the memory and configured to transmit one or more first path migration configurations for an integrated access and backhaul node (IAB-node), and transmit one or more second path migration configurations for a child node, wherein the first path migration configurations correspond to a parent node to which a first candidate cell of the IAB-node belongs, and the second path migration configurations correspond to a parent node to which the second candidate cell of the IAB-node belongs.

Abstract: An information transceiving apparatus, applicable to a first IAB-donor-node, includes a transmitter configured to transmit a first message to a second IAB-donor-node, the first message comprising a BAP address of a first node in topology of the first IAB-donor-node, and a receiver configured to receive a second message transmitted by the second IAB donor node, the second message comprising a BAP Routing ID in topology of the second IAB donor node, and a processor configured to configure BAP routing entries for nodes in its topology according to the second message.

Abstract: An apparatus for processing a radio link failure, applicable to a terminal equipment includes a detector configured to detect or trigger a radio link failure, and first selecting processor circuitry configured to perform cell selection, wherein the first selecting processor circuitry prioritizes a conditional reconfiguration candidate cell to select, or second selecting processor circuitry configured to perform cell selection; and first reselecting processor circuitry configured to perform cell reselection when a selected cell is not a conditional reconfiguration candidate cell, or first executing processor circuitry configured to attempt conditional reconfiguration execution.

Abstract: An apparatus for triggering a scheduling request to which a sidelink discontinuous reception command corresponds, configured in a first terminal equipment, the first terminal equipment performing sidelink transmission to a second terminal equipment, the second terminal equipment using sidelink discontinuous reception (SL DRX), wherein the apparatus includes first triggering processor circuitry configured to trigger a first scheduling request to which a sidelink discontinuous reception command (SL DRX Command) corresponds after the first terminal equipment triggers the sidelink discontinuous reception command.

Abstract: A method and apparatus for configuring and determining paging opportunities and a system, in which by increasing transmission opportunities of paging, such as increasing total paging opportunities or increasing paging opportunities for paging a specific terminal, a network device may be ensured to find terminal equipment or punctually notify the terminal equipment of update of system information and transfer of public warning system (PWS) information.

Abstract: A migration apparatus for an (integrated access and backhaul) IAB-node, applicable to a first terminal equipment, the first terminal equipment comprising a terminal equipment served by a first IAB-node and/or a terminal equipment served by a descendant IAB-node of the first IAB-node includes a first memory configured to store first configuration information, the first configuration information comprising security configuration configured by a target IAB donor node, and first applying processor circuitry configured to apply the security configuration in a stored first configuration information when first indication information is obtained or the security configuration in the stored first configuration information comprises security configuration corresponding to a selected or reselected cell.

Abstract: An apparatus for generating beam failure information, includes a memory and processor circuitry, the memory storing instructions, and the processor circuitry being configured to execute the instructions to implement the following detecting that beam failure recovery (BFR) of a transmission reception point (TRP) is triggered, and generating a BFR medium access control (MAC) control element (CE) in case where at least one beam failure recovery has been triggered and not cancelled for the TRP and evaluation of candidate beams has been completed, wherein the BFR MAC CE indicates information for the TRP in which beam failure recovery is triggered.

Abstract: A method and an apparatus for detecting beam failure. The method comprises: receiving a beam failure instance indication by a medium access control (MAC) entity of a terminal equipment, incrementing a transmission reception point (TRP)-specific beam failure indication count by 1, and in a case where the TRP-specific beam failure indication count is greater than or equal to a TRP-specific beam failure instance maximum count, determining that a beam failure occurs in a transmission reception point or beam failure recovery (BFR) of the transmission reception point is triggered or a beam failure indication of the transmission reception point is triggered.

Abstract: An integrated access and backhaul (IAB) communication method includes detecting, by an IAB node, that on a backhaul link between the IAB node and a parent node, a radio link failure (RLF) occurs or a radio link failure (RLF) recovery is successful, or a radio link failure (RLF) recovery is failure, and transmitting, by the IAB node, RLF indication information to an IAB child node or a terminal equipment by using a Backhaul Adaptation Protocol (BAP) control Protocol Data Unit (PDU), the RLF indication information being used for indicating one of at least two backhaul radio link failure (BH RLF) types.