Uplink information transmission method and device after gap measurement

Abstract

The embodiments of the present invention provide an uplink information transmission method and device after measuring a Gap. The method comprises: a terminal receiving Gap post-transmission mode information sent by a communication station, which is used for indicating whether the terminal can send uplink information on a first uplink subframe after measuring a Gap; if the Gap post-transmission mode information indicates that the terminal can send the uplink information on the first uplink subframe after measuring the Gap, and when the terminal determines that the uplink information is required to be sent, the terminal sending the uplink information to the communication station on the first uplink subframe after measuring the Gap. The embodiments of the present invention improve the uplink resource utilization rate and service continuity of a terminal user.

Description

technical field [0001] The invention relates to communication technology, in particular to a method and device for transmitting uplink information after Gap is measured. Background technique [0002] With the continuous development of cellular technology, the use of low-power nodes and small cells will become more and more popular, thereby increasing system capacity and providing users with higher service rates and greater service bandwidth. In the Long Term Evolution (LTE for short) system, when the communication station wants the terminal to measure a cell on a frequency other than the frequency of its serving cell, the communication station needs to configure a measurement gap (measurement gap) for the terminal, including downlink measurement Gap and upstream measurement Gap. The existing measurement gap is usually multiple consecutive periods of 6 ms in duration and a period of 40 or 80 ms. During the measurement gap, the terminal will not transmit any data, and will n...

AI Technical Summary

Problems solved by technology

Therefore, in the scenario where TA is 0, the UE does not transmit information in the first uplink subframe after the Gap, resulting in waste of uplink resources

[0004] For example, for terminals within a radius of 78m within the service range of a communication site, the TA can be 0. As a very popular subject of LTE Rel-12, small cells have low transmission power and small coverage. For some small cells, or most areas covered by small cells, the TA of the terminal is 0

However, in the scenario where TA is 0, the UE does not transmit information in the first uplink subframe after the gap, so in the small cell scenario, uplink resources will be wasted

For another example, under the FDD system, it takes 480ms to measure a frequency, so 12 measurementGaps need to be configured, which means that 12 uplink subframes are wasted during this period

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