摘要:
The invention may allow an in-vehicle unit of a vehicle located in a shadow portion of a large-sized vehicle and an in-vehicle unit of a vehicle at a location separated from an intersection (193) to receive traffic information. A UHF beacon unit (112) is disposed at the intersection (193), thereby distributing the traffic information using a UHF beacon signal having a diffraction characteristic. This arrangement can allow the in-vehicle unit of the vehicle located in the shadow portion of the large-sized vehicle as well to receive the traffic information. Further, since the UHF signal propagates far, this arrangement can allow the in-vehicle unit of the vehicle at the location separated from the intersection (193) as well to receive the traffic information. The UHF beacon unit (112) transmits the UHF beacon signals with the different traffic information set therein by time division and frequency division. In this case, the UHF beacon unit (112) transmits the UHF beacon signals with the different traffic information set therein with different transmission output powers. With this arrangement, the different traffic information can be respectively distributed to a near-distance zone (291), an intermediate-distance zone (292), and a far-distance zone (293).
摘要:
The invention relates to a node (11) for a cellular network (1) with a linear cell topology, wherein the node (11) is configured to communicate data (3) in at least a first and a second channel resource (CR i ) of a communication channel (CH) and to employ different power levels (P 1 , P 2 ) for different channel resources (CR i ), wherein the node (11) comprises a first and a second directional antenna (12, 13), each directed in a different direction, and wherein the node (11) is further configured to independently communicate different data (3) over the first and the second antenna (12, 13) in the same channel resource (CR i ). The invention further relates to a cellular network (1) comprising a plurality of nodes (11) and a method for communicating between a user terminal (4) and a node (11).
摘要:
A network component to partition an Internet Protocol (IP) Radio Access Network (RAN) network. The network component may be configured to find one or more rings and one or more chains. The rings and/or the chains may be used to find one or more ring clusters. The network component may be configured to divide one or more of the ring clusters if they exceed a network node threshold number of network nodes. The network node may form a plurality of interior gateway protocol (IGP) areas using the ring clusters. The plurality of IGP areas may be refined based on a network node threshold and an aggregate site gateway (ASG) node threshold.
摘要:
In the present invention, a wireless transmission system includes a plurality of mobile stations in a cell area, and a base station. The base station divides each of an uplink frame and a downlink frame into a plurality of blocks, assigns a specific one of the plurality of blocks to each of the plurality of the mobile stations, assigns a specific frequency channel to the mobile station, and notifies the specific block and the specific frequency channel to the mobile station. The length of each of the plurality of blocks is optional, and a sum of the lengths of the plurality of blocks is equal to the length of the frame.
摘要:
The present invention is designed to make effective use of radio resources in VSEC to output a plurality of beams of varying tilt angles for sectorization in vertical directions. A radio communication method for a radio base station that outputs a plurality of beams of varying tilt angles and forms a plurality of cells that are sectorized vertically, and a user terminal that establishes wireless connection with the radio base station, provides the steps in which the radio base station acquires information about the communication capacity of each of the plurality of cells, and controls the vertical plane beam width and/or transmission power of each cell and sets the coverage area of each cell so that differences in communication capacity between the plurality of cells are reduced.
摘要:
A communication device, base station, terminal, and method for a multi-cell network include a scheduler configured to generate outer cell scheduling information by scheduling outer cell frequency resources for outer terminals in outer cells of a plurality of cells, and a scheduling information provider configured to provide the outer cell scheduling information to the plurality of cells.
摘要:
Even when a same C-RNTI is allocated to multiple mobile stations in a phantom cell, a collision between the mobile stations UE to which the same C-RNTI is allocated is avoided. A radio base station PhNB#10 according to the present invention is configured to manage a cell #10 (phantom cell) which is formed by linking multiple small cells and includes an allocation unit 11 configured to allocate a same C-RNTI ph to multiple mobile stations UE#1/UE#3 which are separated by at least a predetermined distance in the cell #10.
摘要:
A method and a device for optimizing the assignation of network activity of a cellular communications network to land areas in a simple and accurate way. This technique allows representing the activity of a cellular network on a set of tiles in a grid covering a certain land area, instead of representing it associated to antenna cells that might or might not overlap. The activity dispersed and assigned to nonoverlapping grid tiles is much simpler and clearer to understand and allows visualizing how the network activity is distributed over the space and how it varies along time allowing therefore an efficient network design and management optimization.
摘要:
Systems and methods for managing and/or improving interference in cells may be provided. For example, in embodiments, a partial-band Almost Blank Subframe (PB-ABS) subframe and/or a spatial Almost Blank Subframe (SABS) may be provided and/or used for coordinating communication with in networks with smaller and larger cells (e.g. pico or macro cells). For example, a PB-ABS may provide a dimension (e.g. frequency) that may be used to define a region and/or particular resources (e.g. resource blocks) reserved for pico cell operations or transmissions and a region or other resources (e.g. not those reserved for pico cell operations) available for macro cell operations or transmissions. Additionally, based on beam parameters (e.g. associated with cell partitioning), SABS may offer an additional dimension (e.g. spatial) that may be used to prevent transmission in a particular spatial direction.