Abstract: After determining a paging message is required for a selected user equipment (UE) device, an apparatus evaluates neighbor list data of a neighbor list generated by a reporting user equipment (UE) device to determine the selected UE device is a neighbor device of the reporting UE device. Based on information from the neighbor list, the apparatus determines that the selected UE device is located within a geographical area within a paging area where the geographical area includes a subset of the base stations within the paging area. The apparatus invokes transmission of the paging message only from the base stations in the geographical area without transmission of the paging message from other base stations within the paging area.

Abstract: A relay user equipment (UE) device transmits selected system information in a sidelink discovery message where the selected system information is a subset of system information received from a cell at the relay UE device. A remote UE device receiving the sidelink discovery message with the selected system information obtains at least system information for accessing the cell where such system information may not be available directly from the cell. The remote UE receiving select system information from each of a plurality of candidate relay UE devices manages relay selection/reselection at least partially based on the selected system information.

Abstract: A communication control method is used in a mobile communication system for providing a multicast broadcast service (MBS) from a base station to user equipment, and includes receiving, by the base station from a core network or another base station, a specific Packet Data Convergence Protocol (PDCP) sequence number specified to be applied to an MBS packet; associating, by the base station, the MBS packet with the specific PDCP sequence number; and transmitting, by the base station to the user equipment, the MBS packet associated with the specific PDCP sequence number.

Abstract: The devices, systems, and methods described herein are directed to scenarios in which a candidate relay UE device may have previous knowledge of a source UE device's interest in connecting to a specific target UE device, based on a previous request from the source UE device. If the candidate relay UE device determines that a sidelink connection between the candidate relay UE device and the target UE device meet the criteria for establishing a U2U relay connection between the source UE device and the target UE device, the candidate relay UE device should inform the source UE device without waiting for a next scheduled Model A transmission period.

Abstract: A communication method performed by a user equipment in a mobile communication system for providing a multicast/broadcast service (MBS) includes: receiving a paging message including a first list and a second list in a radio resource control (RRC) inactive state from a base station, the first list being a list of user equipment identifiers, and the second list being a list of MBS session identifiers; based on a user equipment identifier of the user equipment being comprised in the first list, initiating an RRC connection resume to transition from the RRC inactive state to an RRC connected state; and based on an MBS session identifier of a multicast session which the user equipment has already joined being included in the second list, recognizing activation of the multicast session already joined and maintaining the RRC inactive state.

Abstract: A communication method performed by user equipment in a mobile communication system that provides a multicast/broadcast service (MBS) includes: receiving, from a network node, a radio resource control (RRC) release message including configuration information of a multicast inactive multicast radio bearer (MRB) used for reception of a multicast session in an RRC inactive state, the RRC release message causing the user equipment to transition to the RRC inactive state; confirming whether the RRC release message includes state information regarding whether the multicast session has been activated; and starting a multicast reception process using the multicast inactive MRB based on the configuration information when the RRC release message does not include the state information.

Abstract: A communication control method according to an embodiment is a communication control method used in a mobile communication system providing a multicast broadcast service (MBS) from a base station to a user equipment. The communication control method includes, by the user equipment, specifying a broadcast session among MBS sessions in which the user equipment is interested, the broadcast session being an MBS session transmitted in a broadcast manner, and, by the user equipment, transmitting, to the base station, an MBS interest notification including identification information identifying the broadcast session specified.

Abstract: In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes transmitting, by a donor base station with a first relay node and a second relay node as lower nodes of the donor base station, a trigger type for a pre-emptive buffer status report (pre-emptive BSR) to the second relay node being a parent node of the first relay node. The communication control method includes triggering, by the first relay node, the pre-emptive buffer status report to the second relay node in accordance with the trigger type.

Abstract: A communication control method according to an embodiment is a communication control method used in a mobile communication system for providing a multicast broadcast service (MBS) from a base station to a user equipment, the communication control method including transmitting, by the base station through broadcast signaling, an MBS configuration including at least information used for reception of a broadcast session; and transmitting, by the base station to the user equipment in a Radio Resource Control (RRC) connected state, at least a part of the MBS configuration through dedicated signaling.

Abstract: Methods, apparatuses and systems for user equipment channel estimation, in accordance with some embodiments, includes: accessing a database storing a first plurality of locations, a first plurality of channels associated with respective ones of the first plurality of locations, and a first plurality of channel estimates associated with respective ones of the first plurality of channels; obtaining a second location of a first wireless communication device; determining a closest location from among the first plurality locations that has a closest distance to the second location; selecting a channel estimate from among the first plurality of channel estimates that corresponds to the closest location; determining a second channel estimate for the first wireless communication device based on the selected channel estimate; and adjusting at least one parameter of a signal transmitted between the first wireless communication node and the first wireless communication device based on the second channel estimate.

Abstract: The devices, systems, and methods discussed herein facilitate the transition of a remote UE device and a relay UE device from either the RRCJDLE state or the RRCJNACTIVE state to the RRC_CONNECTED state in order to relay data. In some examples, in response to receiving a first Radio Resource Control (RRC) message from the remote UE device requesting connection to a base station, the relay UE device transmits an RRC connection request message to the base station. If the relay UE device receives a favorable RRC response message from the base station, the relay UE device transitions to the RRC_CONNECTED state with the base station and forwards the first RRC message to the base station. In some examples, the relay UE device transmits, to the remote UE device, a status update message to inform the remote UE device of the RRC response message received from the base station.

Abstract: A communication control method using a wireless relay apparatus connected to an upper apparatus via a backhaul link includes, in a case that a backhaul link of the wireless relay apparatus fails to be recovered, by the wireless relay apparatus, executing a first process for re-establishing a backhaul link of a lower wireless relay apparatus connected to the wireless relay apparatus by using a first message of a BAP layer of the wireless relay apparatus; and executing a second process for re-establishing or releasing an access link of a user equipment connected to the wireless relay apparatus by using a second message of a layer different from the BAP layer.

Abstract: In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes transmitting, by a first relay node subordinate to a first donor base station, a first packet to a second donor base station different from the first donor base station. The communication control method includes forwarding, by the second donor base station, the first packet to the first donor base station by using a path for data forwarding, and transmitting, by the first donor base station, the first packet to a network.

Abstract: The methods and systems discussed herein describe a first wireless communication device receiving reservation signals from two other wireless communication devices, each reservation signal identifying one or more time-slots reserved for data transmissions and a data priority level associated with the data transmissions. When the first wireless communication device determines that the reservation signals have at least one common identified time-slot, the first wireless communication device transmits a forwarded reservation signal, which identifies the time-slots reserved by the wireless communication device with the higher data priority level, to the wireless communication device with a lower data priority level. The wireless communication device that receives the forwarded reservation signal determines whether to transmit data during the time-slots identified in the forwarded reservation signal.

Abstract: In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes receiving, by a relay node involved between a parent node and a child node, a flow control feedback message from the parent node or the child node. The communication control method includes executing, by the relay node, local rerouting to transfer a data packet to an alternative path, which is different from a path to the parent node or the child node transmitting the flow control feedback message, in response to a certain period elapsing after receiving the flow control feedback message.

Abstract: A communication control method is a method for selecting a candidate cell in which a relay node exists in a cellular communication system. The communication control method includes transmitting, by a node configured to manage a cell, a first information element indicating whether selection of the cell is barred, and a second information element regarding whether selection of another cell belonging to a frequency identical to a frequency of the cell is allowed when the selection of the cell is barred. The first information element is applied to both the relay node and a user equipment. The transmitting includes transmitting the second information element for the relay node as an information element different from the second information element for the user equipment.

Abstract: A communication control method is a method using a relay node that includes a first functional unit connecting wirelessly to a lower node and a second functional unit connecting wirelessly to the upper node and relays data from the lower node to the upper node. The communication control method includes detecting, by the second functional unit, that a predetermined event related to resource allocation to the lower node is occurred in the first functional unit, and transmitting, by the second functional unit, to the upper node, in a case of detecting occurrence of the predetermined event, a first buffer state report including size information indicating an amount of data having yet to be transmitted to the upper node. The detecting includes detecting the occurrence of the predetermined event by monitoring an event occurring in the first functional unit, or by receiving, from the first functional unit, a notification indicating that the predetermined event is occurred.

Abstract: A mobile wireless communication device (mobile device) receives a Minimization of Drive Test (MDT) configuration comprising criteria for performing event-based logging. The mobile device determines if the criteria have been met and, in response to a determination that the criteria have been met, performs an MDT in accordance with the MDT configuration. The MDT results are logged in the memory as an MDT log. The mobile device transmits, to a base station, a log availability indicator indicating the availability of the event-based MDT log.

Abstract: A user equipment (UE) device communicating with a peer UE device over an original sidelink communication path receives a sidelink path-switch criteria message from the peer UE device where the sidelink path-switch criteria message comprises sidelink path-switch criteria for establishing an alternate sidelink communication path between the UE device and the peer UE device. The alternate sidelink communication path may be a direct PCS link or a relay communication link through one or more alternate relay UE devices.

Abstract: A relay user equipment (UE) device transmits selected system information in a sidelink discovery message where the selected system information is a subset of system information received from a cell at the relay UE device. A remote UE device receiving the sidelink discovery message with the selected system information obtains at least system information for accessing the cell where such system information may not be available directly from the cell. The remote UE receiving select system information from each of a plurality of candidate relay UE devices manages relay selection/reselection at least partially based on the selected system information.