Method and apparatus for transmitting information about available power of terminal
A technology for transmitting power and terminal equipment, which is used in power management, link quality-based transmission modification, wireless communication, etc.
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no. 1 example
[0062] refer to image 3 , in step 305, the terminal identifies condition 1 and condition 2 as conditions for generating power headroom information. As described above, condition 1 is satisfied when the change in path loss is greater than or equal to a predetermined threshold, when the change in power headroom is greater than or equal to a predetermined area-specific threshold, or when the change in CQI is greater than or equal to a predetermined threshold.
[0063] In step 310, the terminal starts an uplink data transmission process according to a predetermined procedure. In step 315, the terminal measures its power headroom while performing uplink data transmission. That is, while transmitting uplink data according to the received scheduling information, the terminal receives the uplink scheduling information through the downlink control channel at intervals of a predetermined cycle, and measures its path loss, power headroom, or downlink road channel quality. The uplink ...
no. 2 example
[0068] In the second embodiment of the present invention, the terminal checks the satisfaction / non-satisfaction of Condition 1 and Condition 2 just before sending the uplink, instead of constantly checking the satisfaction / non-satisfaction, so that although the power headroom information is generated, The terminal may also send the power headroom information together with the uplink transmission data without requesting allocation of separate transmission resources. The use of the second embodiment of the present invention can ensure a more efficient use of transmission resources, since the terminal does not need to request a separate transmission resource for the transmission of power headroom information.
[0069] refer to Figure 4 , in step 405, the terminal identifies condition 1 and condition 2 as conditions for generating power headroom information. As described above, condition 1 is satisfied when the change in path loss is greater than or equal to a predetermined thre...
no. 3 example
[0074] In a second embodiment of the invention, condition 2 is checked before generating the power headroom information. The reason why condition 2 is checked in the embodiment of the present invention is to determine that the amount of data remaining in the terminal after data with power headroom information is transmitted is greater than or equal to a predetermined threshold. Therefore, more accurate results can be obtained by checking condition 2 in generating data with power headroom information.
[0075] Therefore, the third embodiment of the present invention provides a method in which if the uplink transmission resource is allocated and condition 1 is satisfied, the terminal generates data with power headroom information, and then compares its remaining data amount with the data amount The threshold Y is compared to actually transmit data with power headroom information, or to transmit new data in which the power headroom information is replaced by user data.
[0076] ...
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