摘要:
The present invention relates to, in a wireless network in which wireless stations transmit frames, a method of managing the access of the medium to a wireless station once a frame or a sequence of frames has been transmitted by the wireless station, the method comprising: (a) generating a time value resulting from a function of the duration of the frame or the sequence of frames to be transmitted, —(b) transmitting the frame or the sequence of frames; and (c) after step (b), the wireless station refraining from access to the medium by counting down a refraining time, the value of the refraining time being determined by taking account of the said time value.
摘要:
The present invention relates to, in a wireless network in which wireless stations transmit frames, a method of managing the access of the medium to a wireless station once a frame or a sequence of frames has been transmitted by the wireless station, the method comprising: (a) generating a time value resulting from a function of the duration of the frame or the sequence of frames to be transmitted, (b) transmitting the frame or the sequence of frames; and (c) after step (b), the wireless station refraining from access to the medium by counting down a refraining time, the value of the refraining time being determined by taking account of the said time value.
摘要:
In wireless meshes, mesh points announce reservation of the wireless medium in beacon frame. Each mesh point determines scheduled reservation of the medium for transmission of the future beacon frames and scheduled reservations of the medium for data communication with the station The station further aggregates the reservations into a single element: an medium occupation element and integrates this element into the beacon frame for future transmission to nearby mesh points.
摘要:
In wireless meshes, mesh points announce reservation of the wireless medium in beacon frame. Each mesh point determines scheduled reservation of the medium for transmission of the future beacon frames and scheduled reservations of the medium for data communication with the station The station further aggregates the reservations into a single element: an medium occupation element and integrates this element into the beacon frame for future transmission to nearby mesh points.
摘要:
In a cellular wide-area radio communications system, comprising a plurality of base stations; a plurality of relay stations; and a plurality of mobile stations; wherein each of the relay stations is associated with at least one of the base stations, each of the mobile stations is associated with at least one of the base stations or one of the relay stations, wireless data transmissions between mobile stations and base stations take place either as single-hop data transmissions between the mobile stations and their associated base stations, or as multi-hop data transmissions between the mobile stations and their associated relay stations and a data transmission between the relay stations and base stations associated with the relay stations, and wherein an average number of multi-hop data transmissions in the radio communications system equals at least an average number of single-hop data transmissions.
摘要:
In a cellular wide-area radio communications system, comprising a plurality of base stations; a plurality of relay stations; and a plurality of mobile stations; wherein each of the relay stations is associated with at least one of the base stations, each of the mobile stations is associated with at least one of the base stations or one of the relay stations, wireless data transmissions between mobile stations and base stations take place either as single-hop data transmissions between the mobile stations and their associated base stations, or as multi-hop data transmissions between the mobile stations and their associated relay stations and a data transmission between the relay stations and base stations associated with the relay stations, and wherein an average number of multi-hop data transmissions in the radio communications system equals at least an average number of single-hop data transmissions.
摘要:
A method and a device are provided for selecting a network node for handover of a mobile terminal is provided, wherein said selection is based on a profile information of said mobile terminal including at least two networks that are coupled with different levels of integration. Furthermore, a communication system comprising such device is suggested.
摘要:
A wireless network (1) comprises basic service sets (6, 7) and a distribution system (8). Each of the basic service sets (6, 7) comprises stations (2, 3) and stations (4, 5), respectively. Thereby, data is moved between their basic service sets (6, 7) and said distribution system (8) via access points (10, 11), which are also stations (3, 4). A medium access control architecture incorporating a distributed coordination function as an access method is provided. Thereby, a normal mode and a mesh mode are provided. Thereby, normal mode is used to transmit data between stations (2, 3; 4, 5) within each of the basic service sets (6; 7). In mesh mode, data is transmitted between the access points (10, 11). To priorize transmission within the distribution system (8) the stations (2, 5), which are not mesh devices, are silence during mesh mode. Therefor, one of the access points (10, 11) sends a request to send in which the address of the access point (10, 11) is used as both the transmitter address and the receiver address of this request to send.
摘要:
The present invention relates to a method for transmitting frames from a transmitting mesh device to a receiving mesh device in a mesh network, comprising: storing frames received in the transmitting mesh device from a source mesh device and intended for a destination mesh device in a relay queue, the source mesh device and the destination mesh device being different from the transmitting device, storing frames generated by the transmitting mesh device in a local queue, different from the relay queue, selecting a frame from the relay queue or local queue based on a predetermined scheduling strategy, -transmitting the selected frame to the receiving mesh device.
摘要:
The invention relates to an interface-control protocol method for a radio system, which has at least one frequency band provided for the two-way alternate utilization of a first and a second radio interface standard. The radio system comprises a number of stations, which each function in accordance with a first radio interface standard and/or in accordance with a second radio interface standard, in which a control station is provided that controls the two-way alternate utilization of the frequency band.