Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit downlink control information (DCI) to a user equipment (UE) indicating a joint field for at least a first component carrier (CC) and a second CC of a carrier aggregation configuration. For example, the joint field may include a rate matching (RM) indication for the first CC and the second CC, a zero power channel state information reference signal (ZP-CSI-RS) indication for the first CC and the second CC, or both. In some cases, the RM indication may include a common RM resource (RMR) configuration applicable for both the first CC and the second CC or per-CC RMR configurations that indicate separate RMRs for each of the CCs. Additionally, the ZP-CSI-RS indication may include a set identifier that indicates a resource set for ZP-CSI-RS resources for both the first CC and the second CC.

Abstract: Aspects relate to wireless communications utilizing cross carrier scheduling Methods and apparatus include generating at least one slot in a control channel from a scheduling cell, the at least one slot including a plurality of control channel segments such as PDCCH segments, which are arranged at respective times within the at least one slot. Each of the control channel segments includes control information such as DCIs corresponding to respective slots for a scheduled cell. Distributing the control channel information in segments or spans over time affords improved decoding timing in a UE in the scheduled cell.

Abstract: A high-speed quantum random number generator includes a laser light source, an unequal proportion optical splitter configured split a laser signal emitted by the laser light source into n first light beams and n second light beams, n differential detectors, n amplifiers, n analog-to-digital converters, and a programmable logic device. Input ends of each of the differential detectors is coupled to the unequal proportion optical splitter and configured to receive one of the first light beams and one of the second light beams. An input end of each of the amplifiers is coupled to an output end of a corresponding one of the differential detectors. An input end of each of the analog-to-digital converters is coupled to an output end of a corresponding one of the amplifiers. An output end of each of the analog-to-digital converters is connected to an input end of the programmable logic device.

Abstract: Embodiments of the present application provide an object transfer system for transferring an object from a source address to a destination address through nodes across one or more geographical areas, the system comprising an intelligent object distribution platform and a plurality of nodes each located in a respective geographical area. The platform, the nodes and users can communicate with each other in a wired manner or in a wireless manner. The platform is configured to associate nodes located in each geographical area to form a number of tree structures with respective roots of said trees being connected with each other; and said roots in each geographical area are all connected to one of other nodes which are not part of any tree structure and which in turn are connected to each other.

Abstract: A logistics system for providing logistics service across one or more areas is provided. The system comprises: a plurality of nodes each located in a respective area configured for providing logistics delivery; and an intelligent logistics distribution platform configured to communicate with each node and select a route consisted of said nodes for the logistics service; wherein the nodes located in each area are arranged to form a number of tree structures with respective roots of said trees being connected with each other such that the intelligent logistics distribution platform is capable of deriving a unique shortest route for the logistics service.