The present invention discloses a heat dissipating structure of a light source utility that includes a rear-located heat dissipating element, a light source generating element, a thermally conductive mounting element and a front-located heat dissipating element. The method includes: receiving one or more PDCCH signals and one or more PDSCH signals corresponding to the PDCCH signals in downlink subframe N; generating ACKNACK information on the basis of the result of the acknowledgement of receipt of at least the one or more PDSCH signals; and transmitting the ACKNACK information through a PUCCH. Retaining tabs extend from the frame and support resilient retaining portions which snap into engagement with the support panel. The arithmetic decoding unit decodes the coded data based on a context label, then derives a decision and supplies the decision to an inverse quantization unit. The handpiece has at least one light conducting fiber which is connected to the device for producing laser radiation and which is in contact with the body of the patient during the acupuncture and applies the laser radiation thereto. By means of the anti-tilt mechanism, possible kinetic tilt caused by movements of the driven object upon when the driven object is driven to move along the Z axis can then be eliminated.