摘要:
A method and apparatus is provided for the overlaid operation of two or more wireless communication systems where one of the two systems is a small-scale or indoor system and the other is a large-scale or outdoor system. The indoor system monitors the operation of the outdoor system and detects which part of the available radio resources are temporarily not in use or interference-free in the outdoor system. The indoor system dynamically selects an unused outdoor channel for indoor operation. The indoor radio traffic is divided into TDD time slots with the slots being used for monitoring the existing radio communication on other outdoor channels so that fast changes according to changing traffic and interference conditions are possible. Synchronization, timing and phase control may be added to assist in the maintenance of an error-free communication network.
摘要:
In the overlayed operation of two cellular radio systems one of the two systems is a small-scale or indoor system and the other is a large-scale or outdoor system. The indoor system monitors the operation of the outdoor system and detects, which part of the available radio resources are temporarily not in use in the outdoor system. The indoor system dynamically selects an unused outdoor channel for indoor operation. The indoor radio traffic is divided into cyclically occurring time slots and some of the slots are used for monitoring the existing radio communication on other outdoor channels so that fast changes according to changing traffic and interference conditions are possible.
摘要:
For improving data transmission over the radio path between a mobile station and a base station in a mobile telecommunications system, a divider splits a data signal whose speed is higher than the maximum data transfer rate in one frame, into at least two signals of lower speed before transmission over the radio path. The mobile station is allocated at least two traffic channels for the high-speed data transmission so that each of the signals of lower speed is transmitted over the radio path in its respective traffic channel. A combiner combines the signals of lower speed received over the radio path, to reconstitute the original signal at the receiving end.
摘要:
A data transmission in a digital mobile communication system employing a so-called multi-channel access technique, in which one or more traffic channels may be allocated to a mobile station for data transmission in accordance with the data transfer rate required by the application using the mobile station. Upon establishing a data call, the mobile station indicates to the mobile communication network the maximum and optionally the minimum requirements for the user data transfer rate. The mobile communication network assigns the mobile station for a data call a channel configuration consisting of one or more traffic channels in connection with call set-up or handover, the channel configuration depending on the resources currently available in the mobile communication network and enabling performance of the data channel, which is not lower than the minimum requirement and not higher than the maximum requirement.
摘要:
A method and arrangement for high-speed data transmission in a TDMA mobile telecommunications system. A high-speed data signal is split into at least two signals of lower speed prior to transmission over a radio path. At least two time slots for each frame are allocated for a mobile station. The time slots from each frame correspond to a number of the signals of lower speed. Modulation and burst building operations are carried out separately for each of the signals of lower speed. Data is transmitted over the radio path between the mobile station and a base station as bursts in a time slot allocated to the mobile station by successive frames, so that each of the signals of lower speed is transmitted in a different one of the time slots.
摘要:
The invention relates to a data transmission in a digital mobile communication system. In a mobile communication system employing a so-called multi-channel access technique, one or more traffic channels may be allocated to a mobile station (MS) for data transfer, in accordance with the data transfer rate required by the application using the mobile station. In the invention, a data call is determined minimum and maximum requirements for the data transfer rate of the user data. The mobile communication network (BSS, MSC) dynamically adjusts (Handover CMD/Additional Assignment) the channel configuration assigned to the mobile station (MS) for the data call and consisting of one or more traffic channels, within the limits of said minimum and maximum requirements of the data channel, depending on the changing allocation state of the resources of the mobile communication network.
摘要:
For data transmission in a digital mobile communication system, in a mobile communication system employing a so-called multi-channel access technique, one or more traffic channels may be allocated to a mobile station for data transfer, in accordance with the data transfer rate required by the application using the mobile station. Minimum and maximum requirements are determined for the data transfer rate of the user data. The mobile communication network dynamically adjusts the channel configuration assignment to the mobile station for the data call, so as to consist of one or more traffic channels, within the limits of the minimum and maximum requirements of the data transfer rate, depending on the changing allocation state of the resources of the mobile communication network.
摘要:
A method and an arrangement for controlling transmitting power of a mobile station and carrying out a handover in a mobile telecommunications system in which data is transmitted over the radio path between a mobile station and a base station as bursts in time slots of successive frames. A mobile station can be allocated at least two time slots in each frame for high-speed data transmission. The mobile station is arranged to measure the characteristics of the received signal, such as the signal level and/or quality, in each time slot allocated to the mobile station, and the fixed radio network is arranged to control the transmitting power of the mobile station and/or make the decision on a handover on the basis of a combination of measurement results of two or more time slots, or on the basis of the measurement result of the poorest time slot.
摘要:
For high-speed data transmission in a digital mobile system, the mobile network allocates n parallel rate-adapted traffic channels to a high-speed user data signal which requires a data transfer rate R.sub.user within a range (n-1)*R.sub.ch
摘要:
The invention relates to controlling transmission power and carrying out a handover during a data transmission over the radio path between a mobile station and a base station (BTS) in a mobile telecommunications system. A mobile station can be allocated at least two traffic channels for a high-speed data transmission. The mobile station is arranged to measure the characteristics of the received signal, such as the signal level and/or quality, in each of the allocated traffic channels. The radio network is arranged to control the transmitting power of the mobile and base stations and make the decision on a handover on the basis of a combination of measurement results of two or more traffic channels, or on the basis of the measurement result of the poorest traffic channel.