The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). Embodiments of the disclosure provide a method, device and apparatus for initial access, wherein a method for initial access includes: receiving a first configuration message; and establishing a connection between a relay node and an anchor node, based on the first configuration message. The method provided in this disclosure establishes a connection between the relay node and a central unit of the anchor node through the information interaction between base stations and the information interaction between base station and relay node. The present disclosure provides a scheduling method and a first node. The method includes: receiving second scheduling related information reported by at least one second node and first scheduling related information reported by at least one UE that is connected to the at least one second node; generating scheduling information used by the at least one second node for scheduling the connected UE; and transmitting the generated scheduling information to the at least one second node and/or the connected UE. A corresponding second node, third node, and computer readable medium are also provided.

A satellite communication earth station includes a detection unit that detects a longitude, a latitude, an altitude, an azimuth, and an inclination of the antenna, a drive unit that drives the antenna to adjust the azimuth angle, the elevation angle, and the polarization angle of the antenna to the communication satellite, a determination unit that determines whether the longitude, the latitude, the altitude, the azimuth, or the inclination detected by the detection unit or the azimuth angle, the elevation angle, or the polarization angle driven by the drive unit makes a change from an initial setting value to a predetermined threshold value or more, and a minimum control calculation unit that calculates control to minimize a drive amount driven by the drive unit to adjust the current azimuth angle, the elevation angle, and the polarization angle of the antenna to the communication satellite.

In an example embodiment, a system comprises a chain of serially coupled nodes, including a central processing node (CPN) and one or more radio communications nodes (RCNs). The CPN couples to a first RCN in the chain via a dielectric waveguide (DWG) link and any further RCNs in the chain are successively connected in serial fashion from the first RCN via further (DWG) links. The CPN generates outbound radio carrier signals that are waveguide-propagated in a downstream direction of the chain, for over-the-air (OTA) by targeted ones of the RCNs, while radio carrier signals received via OTA reception by respective ones of the RCNs are waveguide propagated as inbound radio signals in an upstream direction of the chain, for processing by the CPN. Advantages from he contemplated system include greatly simplified implementation of the RCNs, with lower cost and power consumption. Further, strategic placement of failover CPNs and DWG links provide for continued operation in the face of CPN or DWG link failures.

In an example embodiment, a system comprises a chain of serially coupled nodes, including a central processing node (CPN) and one or more radio communications nodes (RCNs). The CPN couples to a first RCN in the chain via a dielectric waveguide (DWG) link and any further RCNs in the chain are successively connected in serial fashion from the first RCN via further (DWG) links. The CPN generates outbound radio carrier signals that are waveguide-propagated in a downstream direction of the chain, for over-the-air (OTA) by targeted ones of the RCNs, while radio carrier signals received via OTA reception by respective ones of the RCNs are waveguide propagated as inbound radio signals in an upstream direction of the chain, for processing by the CPN. Advantages from he contemplated system include greatly simplified implementation of the RCNs, with lower cost and power consumption. Further, strategic placement of failover CPNs and DWG links provide for continued operation in the face of CPN or DWG link failures.

A satellite communication earth station includes a detection unit that detects a longitude, a latitude, an altitude, an azimuth, and an inclination of the antenna, a drive unit that drives the antenna to adjust the azimuth angle, the elevation angle, and the polarization angle of the antenna to the communication satellite, a determination unit that determines whether the longitude, the latitude, the altitude, the azimuth, or the inclination detected by the detection unit or the azimuth angle, the elevation angle, or the polarization angle driven by the drive unit makes a change from an initial setting value to a predetermined threshold value or more, and a stop processing unit that stops transmission of the radio wave from the antenna when the determination unit determines that the change from the initial setting value to the predetermined threshold value or more is made.

The present application provides a relay session establishing method and apparatus, a device, and a storage medium. This solution provides a method for discovering a relay device by means of a relay service code and establishing a relay session. A remote device determines, according to description information of traffic, a relay service code that is used for indicating a traffic attribute of the traffic, and discovers an appropriate relay device according to the relay service code, and then establishes a relay session with the relay device, so as to transmit data of the traffic. In this solution, the privacy of traffic attribute can be ensured during the process of discovering the relay device.

The present application provides a relay session establishing method and apparatus, a device, and a storage medium. This solution provides a method for discovering a relay device by means of a relay service code and establishing a relay session. A remote device determines, according to description information of traffic, a relay service code that is used for indicating a traffic attribute of the traffic, and discovers an appropriate relay device according to the relay service code, and then establishes a relay session with the relay device, so as to transmit data of the traffic. In this solution, the privacy of traffic attribute can be ensured during the process of discovering the relay device.

Determination information necessary to determine accuracy of detection of a longitude, a latitude, and an altitude of an antenna is acquired, whether the accuracy of detection of the longitude, the latitude, and the altitude is in a necessary and sufficient level is determined in accordance with the acquired determination information, the longitude, the latitude, the altitude, the azimuth, and the inclination of the antenna are detected also after elapse of a predetermined time after the transmission of the radio wave from the antenna is stopped, and the antenna is driven to adjust the azimuth angle, the elevation angle, and the polarization angle of the antenna to the communication satellite in accordance with the longitude, the latitude, the altitude, the azimuth, and the inclination of the antenna detected after elapse of the predetermined time after the transmission of the radio wave from the antenna is stopped.

A wireless communication system includes a first communication device and a second communication device. The first communication device obtains a plurality of radio frequency (RF) signals corresponding to different communication protocols from a plurality of communication systems. A frequency of each of the plurality of RF signals is upconverted to a different frequency, and a phase noise is introduced in the plurality of RF signals. The plurality of RF signals corresponding to different communication protocols are multiplexed into a mmWave RF signal of a specified frequency and a defined pilot tone along with the mmWave RF signal is transmitted. The second communication device captures the mmWave RF signal having the defined pilot tone over-the-air. At least one RF signal is down converted to a source frequency and the phase noise is estimated in the one extracted RF signal based on the defined pilot tone which is reduced concurrently.

A radio base station and a radio terminal perform radio communication based on a TDD scheme. A slot configuration includes allocation of a downlink period and an uplink period to the radio terminal. The relay reflects a signal transmitted from the radio base station or the radio terminal or receives and reradiates the signal to form a transmission path between the radio base station and the radio terminal. A relay characteristic includes a parameter determining a coverage area in which the transmission path is formed. A downlink relay characteristic during the downlink period and an uplink relay characteristic during the uplink period are not common but determined separately. Then, the relay characteristic during the downlink period is set to the downlink relay characteristic, and the relay characteristic during the uplink period is set to the uplink relay characteristic. In other words, the relay characteristic is switched between downlink communication and uplink communication.