Data transmission method and system, and cell base station

Abstract

The invention discloses a data transmission method and system, and a cell base station, and relates to the field of mobile communication. The method comprises the following steps: a first mobile terminal located in a heavy load area establishes a mobile ad hoc network with a second mobile terminal located in a light load area; and the second mobile terminal provides a relay service for the first mobile terminal by using the wireless resources of the second mobile terminal. Therefore, the utilization rate of wireless resources is improved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a data transmission method, system and cell base station. Background technique [0002] Among the 3GPP standards, the anti-interference effect of cooperative scheduling is the most significant. When the radio resource is sufficient, the cell base station may not allocate the PRB marked as the high interference indicator HII to the edge user, so as to ensure that no cell interference occurs. [0003] However, a large amount of resource configuration information needs to be exchanged between cell base stations using cooperative scheduling, and the reconfiguration period is millisecond level, which is difficult to be practically applied. Static coordination, semi-static coordination and dynamic coordination are during the two reconfiguration intervals. If the load on the edge of the cell suddenly increases in a certain period, the wireless resources at the edge of the ...

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Problems solved by technology

[0003] However, a large amount of resource configuration information needs to be exchanged between cell base stations using cooperative scheduling, and the reconfiguration period is millisecond level, which is difficult to be practically applied

Static coordination, semi-static coordination and dynamic coordination are during the two reconfiguration intervals. If the load on the edge of the cell suddenly increases in a certain period, the wireless resources at the edge of the cell that have been configured with wireless resources are not enough, and the wireless resources at the center of the cell are limited. Surplus, because the wireless resource configuration has been completed, and the time to reconfigure the wireless resources has not yet arrived, at this time the users at the edge of the cell may be in a situation where no resources are available, while the wireless resources at the center of the cell are idle, resulting in waste of resources and reduced frequency utilization

On the contrary, if the load at the center of the cell is too heavy and the wireless resources are insufficient, while the load at the edge of the cell is small and the wireless resources are abundant, the frequency reuse rate will also decrease at this time.

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