There is provided a Bluetooth system including multiple slave devices. When a first slave device among the multiple slave devices changes its connection to a different master device, the first slave device actively informs other slave devices among the multiple slave devices to connect to said different master device to realize the Bluetooth connection synchronization between the multiple slave devices.

A communications method includes: A control node determines first configuration information, where the first configuration information belongs to a configuration information set, the configuration information set includes at least one piece of configuration information, and the first configuration information is used to indicate whether a first slave node performs, in some or all of time units included in a preset time period, an operation corresponding to the first configuration information. This is applicable to coordination and management of communication between slave nodes in a transmission system having a plurality of service requirements, and implements flexible configuration of each slave node in the transmission system by the control node.

A method for managing a controller function of investigator equipment belonging to a backhaul network, the backhaul network comprising a plurality of items of equipment managing a unified wireless network. Each item of equipment the controller function of which is active fulfils a role of controller. The investigator equipment can activate and deactivate the controller function without requiring rebooting. The method comprises: recording age of investigator equipment corresponding to a time since which the equipment has been fulfilling the role of controller, broadcasting discovery request, determining that responding equipment is fulfilling role of controller according to information representing role of controller present in response from the responding equipment, when the controller function of the investigator equipment is active, obtaining the age of the responding equipment, and deactivating the controller function of the investigator equipment if the age of the investigator equipment is less than the age of the responding equipment.

A wireless audio service automatic resetting method and a wireless audio system are proposed. In the wireless audio service automatic resetting method and the wireless audio system thereof that are for a slave device, the slave device requests and receives latest audio service group information from a master device by connecting to a wireless network, and performs a corresponding operation by determining whether to recover to an in-service state on the basis of the latest audio service group information. Accordingly, the slave device may be conveniently recovered to the in-service state again without user's input, thereby receiving provision of a desired audio service.

According to certain embodiments, a method by a master network node is provided for resource coordination with a secondary network node for dual connectivity. The method includes transmitting, to the secondary network node, resource coordination information for use by the secondary network node in coordinating resource utilization between the master network node and the secondary network node for a wireless device.

Reception or transmission of physical downlink control channels (PDCCH) associated with a master node (MN) or with a secondary node (SN) involve an indication for a first number of cells N.sub.cells,MCG.sup.cap and for a second number of cells N.sub.cells,SCG.sup.cap. A first total number of PDCCH candidates is determined on N.sub.cells,MCG.sup.DL,μ cells of the MN over a time period according to N.sub.cells,MCG.sup.cap and a second total number of PDCCH candidates is determined on N.sub.cells,SCG.sup.DL,μ cells of the SN over the time period according to N.sub.cells,SCG.sup.cap. μ is a subcarrier spacing (SCS) configuration for an active bandwidth part (BWP) on each of the N.sub.cells,MCG.sup.DL,μ cells or N.sub.cells,SCG.sup.DL,μ cells.

Reception or transmission of physical downlink control channels (PDCCH) associated with a master node (MN) or with a secondary node (SN) involve an indication for a first number of cells N.sub.cells,MCG.sup.cap and for a second number of cells N.sub.cells,SCG.sup.cap. A first total number of PDCCH candidates is determined on N.sub.cells,MCG.sup.DL,μ cells of the MN over a time period according to N.sub.cells,MCG.sup.cap and a second total number of PDCCH candidates is determined on N.sub.cells,SCG.sup.DL,μ cells of the SN over the time period according to N.sub.cells,SCG.sup.cap. μ is a subcarrier spacing (SCS) configuration for an active bandwidth part (BWP) on each of the N.sub.cells,MCG.sup.DL,μ cells or N.sub.cells,SCG.sup.DL,μ cells.

Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing dynamic power control with minimal complexity in a dual connectivity mode. In particular, a user equipment (UE) may determine the reserved power (or maximum available power) for uplink transmissions on one or more cells in one cell group to a base station based on the total power available to the UE and the minimum reserved power for uplink transmissions on one or more cells in another cell group. Once the UE determines the reserved power for conflicting uplink transmissions on one or more cells in a cell group, the UE may allocate the reserved power to each uplink transmission on the one or more cells in the cell group (e.g., based on a priority of each of the uplink transmissions).

Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing dynamic power control with minimal complexity in a dual connectivity mode. In particular, a user equipment (UE) may determine the reserved power (or maximum available power) for uplink transmissions on one or more cells in one cell group to a base station based on the total power available to the UE and the minimum reserved power for uplink transmissions on one or more cells in another cell group. Once the UE determines the reserved power for conflicting uplink transmissions on one or more cells in a cell group, the UE may allocate the reserved power to each uplink transmission on the one or more cells in the cell group (e.g., based on a priority of each of the uplink transmissions).

A method for hub for interfacing between a wireless mission critical communication link (MCCL) and a wired MCCL. The hub includes a wired interface a providing a physical layer connectivity to the wired MCCL; a plurality of ports coupled to the wired interface; a wireless interface providing a physical layer connectivity to the wireless MCCL; and a processor; and a memory containing instructions that, when executed by the processing circuitry, configure the hub to: receive a signal from a primary device through the wireless MCCL; determine a wireless communication cycle of the primary device; determine a wired communication cycle of a secondary device, wherein the secondary device is connected via the wired MCCL; synchronize a start time of the wired communication cycle to a start of the wireless communication cycle; and send the received signal to the secondary device at the synchronized start time of the wired communication cycle.