188 results about "Virtual base station" patented technology

In a wireless multi-hop relay network arranged in a tree topology, the base station and one or more relay stations are associated as a virtual base station (VBS). The base station and each relay station have a unique virtual base station identifier (VBS-ID) associated with the path defined by the base station and the one or more relay stations. a relay station in the branch uses its VBS-ID for communicating with an attached subscriber station (e.g. a mobile station) such that communications between the base station and subscriber station occur via the VBS. Subscriber station data communications are relayed between the base station and the one or more relay stations over the VBS via a tunnel connection. The VBS is autoconfigurable. Mobility for subscriber stations and relay stations is provided through reconfiguration of VBS's.

A method, apparatus and a system to share a wireless spectrum by mobile devices of different operators. The sharing of the wireless spectrum is done by providing a first virtual base station to communicate with mobile devices of a first operator and providing a second virtual base station to communicate with mobile devices of a second operator.

A method, a system and a device for network handover are provided, which are applied to the field of communications technologies. The method includes the following steps that: a terminal first obtains information of a handover manner of handover from a virtual base station to a target base station, and then sends a corresponding message to the virtual base station according to the information of the handover manner, so as to perform network handover, so that in a procedure that the terminal is handed over from a non-WiMAX network to a WiMAX network, the terminal may be directly handed over according to the handover manner supported by the virtual base station. Compared with the conventional art in which handover manners require handover attempts, the adoption of the method for network handover reduces handover time and increases network handover efficiency.

The invention relates to a novel radio network architecture, called G-RAN (green-radio access network) which realizes energy conservation and consumption reduction by re-designing the traditional network architecture in the further mobile communication network. Aiming at reducing the number of machine rooms of a base station, reducing energy consumption and improving spectrum efficiency, on the basis of the key technologies such as centralized base-band processing, virtual base station, base station coordination, dynamic network architecture and the like, and combining with resource sharing and network dynamic scheduling, the G-RAN is proposed to realize low-cost, high-bandwidth and high-flexibility operation. The radio network architecture introduces a series of new technologies and processes such as distributed base station, base station virtualization, centralized processing and the like, and promotes the improvement of energy utilization efficiency of the industry.

A wireless communication system including a gateway device that connects a core network and a wireless access network. The wireless access network includes a virtual base station that includes a representative base station connected to the gateway device and a plurality of unrepresentative base stations, which are subordinate to the representative base station. The presence of the unrepresentative base stations is hidden from the gateway device and an adjacent base station.

The embodiment of the invention discloses a system and device for base station management and a base station management method. The system comprises a node used for providing a computing resource and a network resource of a base station and virtualizing the computing resource and the network resource into a logic resource; an exchanging device used for performing data exchange among nodes; a node management device used for forming a resource pool based on the information of the logic resource and scheduling the resource in the resource pool to a cloud virtual base station based on the data exchange of the exchanging device; a cloud virtual base station management device used for managing the resource of the cloud virtual base station based on the resource pool information provided by the node management device; a cloud virtual base station used for respectively obtaining the logic resources provided by the nodes based on the management of the cloud virtual base station management device and the scheduling of the node management device, and providing a base station service based on the logic resource. According to the invention, sharing of multi-node resource in the base station system can be realized.

In a cellular communications network (10), additional control signals comprising virtual base station identification data are distributed in the radio system from well defined locations by e.g. transmitters (7A-G). Since there is a connection between each virtual base station identification data and the location from where it is transmitted, a mobile terminal (6) can use the information for improving its position estimation according to conventional procedures. No modifications of the mobile terminals (6) are therefore necessary. The mobile terminal (6) is not able to connect to the communications system (10) using the virtual base station identification data, since this data only is intended for position estimating purposes. In such a way, the devices for providing the additional information necessary for the improved position estimation can be made very simple and inexpensive.

The invention discloses a network virtualization frame in a long term evolution system and a resource blocks allocation method under the frame. According to the network virtualization frame, a network resource manager is introduced to virtualize a physical base station into a plurality of virtual base stations, and each virtual base station has an independent virtual network controller; network resource management falls into resource block management and user information management, and a resource block manager cannot visit user information; a utility function comprising adjustable parameters is introduced, and the offer and earning of an operator are defined according to the utility function; all the resource blocks are allocated one by one; when each of the resource blocks is allocated, the operator offers, and the operator with the highest offer acquires the resource block, allocates the resource block for a user and considers the speed requirement of the user and the minimum resource block guarantee of the operator in allocation. Through adoption of the network virtualization frame and the resource blocks allocation method, the operator can offer faithfully, the dispatch of interior of the virtual network is customized by the operator which the virtual network belongs to, and virtual networks can be isolated.

The invention provides a topological interference alignment method of an MIMO interference broadcast channel for solving the technical problem that the topological interference alignment of generalized MIMO cannot be realized in the prior art. The method comprises the following steps: setting the system; constructing a partial connection model of MIMO IBC, and then converting the same into the partial connection model of MIMO IC through virtual base station expansion; solving a precoding matrix and a decoding matrix of an MIMO IC system satisfying a topological interference condition; designing an MIMO IBC precoding matrix and a decoding matrix, and eliminating inter-cell interference through proper signal processing technology; and designing a precoding matrix of a base station to eliminate intra-cell interference. By adoption of the topological interference alignment method provided by the invention, the topological interference alignment of generalized MIMO IBC can be realized, and a lower limit of a degree of freedom that can be reached by the MIMO IBC system with given topological information can be analyzed.

The invention discloses an Ad-Hoc network mode-based RTK (Real-Time Kinematic) Beidou positioning system, comprising at least three Beidou positioning base stations, at least one Beidou positioning movement station and a plurality of wireless communication modules. Each Beidou positioning base station is connected and communicated with one wireless communication module. The Beidou positioning movement station is connected and communicated with one wireless communication module. The plurality of wireless communication modules form an Ad-Hoc network. Each Beidou positioning base station generates base station positioning data and sends the base station positioning data to other wireless communication modules in the Ad-Hoc network through the corresponding wireless communication module. The Beidou positioning movement station generates movement station positioning data, receives base station positioning data, and timely solves virtual base station positioning data of a virtual base station according to the base station positioning data and the movement station positioning data. The Beidou positioning movement station performs real-time solution to obtain high-precision Beidou positioning RTK coordinates. The invention also discloses an Ad-Hoc network mode-based RTK Beidou positioning method.

The embodiment of the invention discloses a wireless communication system, a cloud virtual base station and a resource scheduling method. The wireless communication system comprises a cloud virtual base station platform used for virtualizing a base station physical resource of a node on a physical layer into a logic resource on a resource layer and scheduling the logic resource provided by the resource layer to the cloud virtual base station on a resource scheduling layer, wherein the base station physical resource includes a node computing resource and a node network resource, and the cloud virtual base station is a cloud virtual base station with different systems; a cloud virtual base station used for providing a base station service of the preset system based on the logic resource scheduled by the cloud virtual base station platform; and a cloud virtual base station management device used for managing the cloud virtual base station. By adopting the wireless communication system, a multi-system base station can be provided.

The present invention provides an access network side tile managing and controlling system and a method, wherein the system includes: a module configured to formulate an access network side tile strategy based on network requirements; a module configured to send an indication message to a virtual base station managing and controlling module to complete the association relationship between the tile and the virtual base station based on the tile strategy; and a module for configuring the virtual base station associated with the tile according to the indication message. According to the present invention, the system can effectively control and control the access network side tile, establishes the mapping relationship between the tile and the base station based on the network requirements, and flexibly performs the dynamic adjustment.

This invention is about a method to reduce the near-far effect in the physical and media access control (MAC) layer for focusing on CDMA radio technologies in ad-hoc network systems. The radio resource is first organized and separated into small pieces, divided in both frequency domain (FDMA) and in time domain (TDMA). Each radio resource is considered as a physical radio channel (PRC). Any node in the network can dynamically allocate it. The near-far effect will be mitigated in each PRC, which is used for supporting a set of CDMA based sub-channels. The selection of the TX and RX PRC depends on which small geographical area (SGA) the node is located. As the nodes in the same SGA share the same PRC as the preferred and designated receiving PRC, power control is possible in a neighborhood of multiple SGA. Each SGA is viewed as a virtual base station regarding a designated PRC as the uplink channel. And each PRC provides a multiple sub-channels via the CDMA method. Adopting this Listening Frequency and Resource Planning (LFRP) can substantially increase the ad-hoc network capacity, by limiting the near-far effect in CDMA channels.

The invention aims at providing a method, a device and a system for achieving dynamic migration of virtual base stations in a BBU pool. A second virtual base station for accepting migration of a first virtual base station is determined by utilizing a migration management device according to a migration request of the first virtual base station; the first virtual base station sends a corresponding migration relevant parameter to the second virtual base station; the second virtual base station configures a corresponding communication tunnel according to the migration relevant parameter; the first virtual base station switches a corresponding data path and an interface to the second virtual base station according to the communication tunnel. Compared with the prior art, the method, the device and the system achieve non-destructive virtual base station migration, millisecond-magnitude-order service interruption time and packet loss freeing, ensure the service quality and enable users not to feel the migration process.

The invention discloses a shifting method for the seamless area, comprising: dividing the distributed antenna unit into odd type and even type at intervals; selecting the first antenna unit and the second antenna unit to form the virtual base station according to the upward signal intensity; the first antenna unit and the second antenna unit transmit the signal signs with different codes to the user device; while processing the area-crossing shift, updating the virtual base station according to the upward signal intensity; transmitting the to-be transmitted data to the antenna unit needing the shift to a same type antenna unit. The invention also discloses a shifting system for the seamless area. The complex of the invention is low, which can improve the system performance of the area-crossing shift by using the simple cooperation of the distributed antenna; the specific representation is that: the statistic average value of the communication noise radio at the subdistrict boundary is significantly enhanced and the distribution of the communication noise radio at the subdistrict boundary is significantly improved, in the other words, the communication interruption performance is significantly enhanced.

The invention discloses a cloud+ terminal positioning service method and system. The method comprises: a terminal sending observation data to the cloud server; the cloud server obtaining at least twokinds of position information through calculation according to the observation data and precision data collected by the cloud server, and selects optimal position information from the position information; the cloud server returning optimal position information to the terminal and calculates time information corresponding to observation data adopted by the optimal position information; and the terminal establishing virtual base station data according to the position information and the observation data, and performs real-time positioning by using the virtual base station data.

A virtual base station apparatus (virtual AP) formed by a plurality of base station apparatuses (APs) requests a terminal apparatus (STA) to start beamforming training. The terminal apparatus transmits a plurality of first training frames to the virtual base station apparatus. The virtual base station apparatus receives the plurality of first training frames by using the plurality of base station apparatuses, and transmits a plurality of second training frames including information on a training frame received under the best conditions from a first base station apparatus that has received the training frame received under the best conditions to the terminal apparatus. The terminal apparatus receives the plurality of second training frames, and transmits to the virtual base station apparatus a second frame including information on a frame received under the best conditions among the plurality of second received training frames,

The invention provides a method and device for locating indoor target user equipment in an indoor base station, wherein the method comprises the following steps of: A, determining a first remote wireless unit from a plurality of remote wireless units; B, constructing an alternative base station set; C, determining whether at least two auxiliary base stations exist in the alternative base station set or not; C1, when the at least two auxiliary base stations exist, locating the target user equipment through the at least two auxiliary base stations exist and the first remote wireless unit; C2, when the at least two auxiliary base stations do not exist, setting one auxiliary user equipment located by the at least two auxiliary base stations in the alternative base station set and one remote wireless unit in the plurality of remote wireless units as a virtual base station, adding the virtual base station as an alternative base station into the alternative base station set, and implementing the step C. By means of the method, the indoor user equipment is precisely located in the event that adjacent base stations do not exist.