7 results about "Base station subsystem" patented technology

To avoid inter-BSS interference of prioritized traffic scheduled to be transmitted during corresponding R-TWT SPs, a wireless protocol enhancement is provided that enables inter-BSS stations / APs to support, negotiate, and participate in temporally overlapping cooperative R-TWT SPs scheduled on different links or different channels. The protocol utilizes new subfield elements to announce, negotiate, and support cooperative R-TWT SPs.

An access point (AR) can account for Non-Primary Channel Access (NPCA) operation during Dynamic BW Expansion (DBE) where a BW of a BSS is expanded or reduced. When BSS BW is dynamically expanded using DBE, the embodiments herein provide signaling and behaviors performed by the AP such that NPCA can operate over the expanded BW. In one embodiment, the AP updates an NPCA primary channel (NPCH) used during NPCA when changing the BW of a BSS / AP during DBE. For example, NPCA may already be enabled in the BSS in which case the AP moves the NPCH to a new channel that is within the expanded BW. In another embodiment, NPCA is not enabled in the BSS before the BW is expanded in which case the AP enables NPCA during the BDE session.

An AP may want to change the non-primary channel access (NPCA) primary channel (NPCH) when the primary channel for the BSS is unavailable, e.g., due to interference on the current NPCH or as a result of RRM. The embodiments herein describe techniques to coordinate the NPCH change and announce it in advance so that both the access point (AP) and stations (STAs) start using the new NPCH at the same time. That is, the embodiments herein describe mechanisms where both the AP and associated STAs start using the new NPCH at the same time when the NPCH changes.

The invention belongs to the technical field of wireless communication, and discloses a communication and sensing integrated self-energy-complementing and self-breathing wireless blind-complementing network system and a control method, a main base station subsystem comprises RRU equipment, a main control module and a main antenna module, the RRU equipment is connected with a far-end BBU, and the main control module receives a trigger signal and controls the RRU equipment to start and stop; the slave base station subsystem comprises a radio frequency amplification module, an integrated high-isolation antenna and a slave control module, the radio frequency amplification module receives and amplifies a signal of the master base station subsystem, the integrated high-isolation antenna integrates a master base station receiving end and a user coverage end, and the communication and inductance integrated control subsystem comprises a low-power-consumption millimeter wave human body sensor and an FPGA controller. The millimeter wave human body sensor is used for detecting a human body signal, and the FPGA controller generates a mode switching instruction; the self-energy-complementing subsystem comprises a solar power generation module, an energy storage module and a power supply controller, the solar power generation module supplies energy to the system and charges the energy storage module, and the power supply controller controls power supply logic and charging protection.

A network adopts Low Latency Reliable Service measures to ensure LLRS traffic has priority over not-LLRS traffic. LLRS capable and not-capable stations coexist and share the same wireless medium. LLRS not-capable stations complete an ongoing legacy contention free transmission TXOP regardless of any needs of station to transmit LLRS. LLRS transmissions thus wait for a long time before starting. An AP detects LLRS activity in the network and modify the EDCA TXOP limit parameter of a BSS to force the stations to reduce their TXOP while LLRS activity remains. The AP can organize a BSS for LLRS capable stations and another BSS for LLRS not-capable stations. Refusal for association to such BSSs or disassociation from such BSSs can include a code indicating to the refused / disassociated stations that a BSS more adapted to its LLRS capability is available.

An AP may want to change the non-primary channel access (NPCA) primary channel (NPCH) when the primary channel for the BSS is unavailable, e.g., due to interference on the current NPCH or as a result of RRM. The embodiments herein describe techniques to coordinate the NPCH change and announce it in advance so that both the access point (AR) and stations (STAs) start using the new NPCH at the same time. That is, the embodiments herein describe mechanisms where both the AP and associated STAs start using the new NPCH at the same time when the NPCH changes.

The invention discloses a draught fan foundation inclination detection device and method based on a differential global navigation satellite system. The device comprises a base station subsystem, a monitoring station subsystem, a data transmission unit and a data processing center. The monitoring station subsystem comprises at least three GNSS monitoring terminals which are rigidly installed on the surface of a wind turbine foundation. And the data processing center is used for receiving the differential correction data of the base station and the observation data of the monitoring station, resolving the high-precision three-dimensional coordinates of each monitoring terminal by using a carrier phase difference technology, and calculating the absolute gradient and azimuth angle of the basis based on the normal vector of a multi-point fitting plane. The geodetic survey level positioning technology is introduced, a global coordinate system is used as an absolute reference, the zero drift problem of a traditional clinometer is eliminated, all-weather and high-precision automatic monitoring of the absolute inclination posture and the absolute settlement of the fan foundation can be achieved at the same time, and the fan operation safety is effectively guaranteed.