Systems and methods to reduce control data traffic between a hub radio device (e.g., a master white space device) and spoke radio devices (e.g., slave white space devices). Reduced are the number of control messages and/or the amount of data transmitted in control data messages. The hub radio device stores data regarding the spoke radio devices that register for white space access (e.g., specific spectrum access credentials) with a spectrum management server via the hub radio device. As long as conditions regarding a spoke radio device remain relatively unchanged, the stored data for the spoke radio device may be used to maintain the white space access through periodic renewal of the corresponding channel authorization with the spectrum management server.

A technique is provided for localizing a plurality of wireless transmitters. The technique includes retrieving Received Signal Strength Indicator (RSSI) values measured by one or more sensors, corresponding to the plurality of wireless transmitters distributed in a region in which the sensors are located. The technique further comprises generating, a plurality of clusters based on the retrieved RSSI values. The technique further comprises generating a binary image based on the generated clusters. The binary image comprises one or more white regions and one or more black regions. The technique further comprises localizing position of each of the plurality of wireless transmitters, based on a determination of contours of the one or more white regions present in the binary image.

A technique is provided for localizing a plurality of wireless transmitters. The technique includes retrieving Received Signal Strength Indicator (RSSI) values measured by one or more sensors, corresponding to the plurality of wireless transmitters distributed in a region in which the sensors are located. The technique further comprises generating, a plurality of clusters based on the retrieved RSSI values. The technique further comprises generating a binary image based on the generated clusters. The binary image comprises one or more white regions and one or more black regions. The technique further comprises localizing position of each of the plurality of wireless transmitters, based on a determination of contours of the one or more white regions present in the binary image.

A process receives performance parameter measurements associated with multiple cell sectors of a group of multiple Remote Radio Units (RRUs) and determines a first set of cell sectors of the multiple cell sectors to include in a first cell sector cluster based on the measured performance parameters. The process configures connections, between the first set of cell sectors included in the first cell sector cluster and a first Baseband Unit (BBU) of multiple BBUs of a Centralized Radio Access Network (CRAN) hub, such that the first BBU processes traffic to and from the first set of cell sectors included in the first cell sector cluster.

A process receives performance parameter measurements associated with multiple cell sectors of a group of multiple Remote Radio Units (RRUs) and determines a first set of cell sectors of the multiple cell sectors to include in a first cell sector cluster based on the measured performance parameters. The process configures connections, between the first set of cell sectors included in the first cell sector cluster and a first Baseband Unit (BBU) of multiple BBUs of a Centralized Radio Access Network (CRAN) hub, such that the first BBU processes traffic to and from the first set of cell sectors included in the first cell sector cluster.

A wireless device receives a radio resource control (RRC) reconfiguration message triggering a first active bandwidth part (BWP) switching of a first cell. Based on the triggering the first active BWP switching during a second active BWP switching of a second cell, the first active BWP switching is delayed until the second active BWP switching is completed.

This application provides a communications method, apparatus, and system, and a storage medium. In consideration that a synchronization signal and PBCH block (SSB) is introduced into a new radio (NR) system, the first physical cell identifier (PCI) corresponds to a first SSB, and the second PCI corresponds to a second SSB, the first access network device determines, based on the first PCI of the first cell and the second PCI of the second cell, that the first PCI conflicts with the second PCI. In this way, a PCI conflict corresponding to the SSB in the NR system can be detected. This helps eliminate or reduce PCI conflicts in an NR network, improve a success rate of terminal handover, and further reduce a call drop rate.

A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.

A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.

In one aspect, network node operates in a wireless communications network that includes two or more beam-based transmission points (30), where each of the two or more beam-based transmission points transmits synchronization signals corresponding to beams transmitted by the respective transmission point. The network node configures the two or more beam-based transmission points to use non-conflicting radio resources for their respective transmissions of synchronization signals.