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Reference signals equivalent to -specific reference sign (PSS), main synchronization signal (PSS) / secondary synchronization signal (SSS), ItagPro and control channels comparable to physical downlink management channel (PDCCH) and physical broadcast channel (PBCH) are defined. One of these carrier is called an extension service or iTagPro smart tracker a new service type (NCT). An object of the present invention is to offer a channel measuring methodology and a machine using the same in a wireless communication system. Another object of the current invention is to supply a way for preventing a collision of a reference sign and an apparatus using the identical. RF (radio freqeuncy) unit for itagpro locator transmitting and receiving a radio signal and a processor linked to the RF unit. RRC layer of the first cell. FIG. 2 reveals an instance of a useful resource grid for one downlink slot. Three shows a structure of a downlink subframe. FIG. Four is an exemplary diagram illustrating monitoring of a physical downlink management channel (PDCCH). FIG. 5 reveals an instance through which a reference signal and a management channel are arranged in a downlink subframe of 3GPP LTE.

FIG. 7 reveals an example of a bodily resource block (PRB) pair. FIG. 10 exhibits an example of a subframe structure of a single provider system and a provider aggregation system. FIG. 11 shows an example of a subframe structure of a 3GPP LTE-A (superior) system that is cross-service scheduled by a service indicator iTagPro smart tracker field. FIG. 13 illustrates a channel measuring methodology in a wireless communication system in response to an embodiment of the current invention. FIG. 14 is a block diagram illustrating a wireless communication system through which an embodiment of the present invention is applied. CDMA may be carried out by a radio expertise similar to universal terrestrial radio entry (UTRA) or CDMA2000. TDMA could also be carried out with wireless applied sciences resembling world system for mobile communications (GSM) / general packet radio service (GPRS) / enhanced information rates for GSM evolution (EDGE). OFDMA could also be applied by wireless technologies resembling Institute of Electrical and ItagPro Electronics Engineers (IEEE) 802.Eleven (Wi-Fi), IEEE 802.Sixteen (WiMAX), IEEE 802-20, advanced UTRA (E-UTRA), and the like.

UTRA is part of a common cell telecommunications system (UMTS). 3rd generation partnership challenge (3GPP) long run evolution (LTE) is a part of evolved UMTS (E-UMTS) using advanced-UMTS terrestrial radio entry (E-UTRA), iTagPro locator which employs OFDMA in downlink and SC in uplink -FDMA is adopted. LTE-A (superior) is the evolution of 3GPP LTE. It may be known as different terms comparable to digital assistant, wireless modem, handheld gadget. NodeB (eNB), a base transceiver system (BTS), an entry level (AP), and the like. LTE consists of LTE and / or iTagPro locator LTE-A. 1 exhibits a radio body structure in 3GPP LTE. One subframe contains two consecutive slots. TTI could also be referred to as a scheduling unit for information transmission. One slot features a plurality of orthogonal frequency division multiplexing (OFDM) symbols in the time domain and a plurality of subcarriers within the frequency area. OFDM symbol is used to signify one image interval since 3GPP LTE uses OFDMA in downlink, itagpro locator and may be referred to as a distinct identify in line with a multiple entry scheme.

SC-FDMA when SC-FDMA is used as an uplink multiple entry scheme, the OFDM symbol could also be known as an SC-FDMA symbol. FIG. 1 is merely an example. Accordingly, iTagPro locator the variety of subframes included in the radio body, the number of slots included in the subframe, or iTagPro online the variety of OFDM symbols included in the slot may be variously modified. 3GPP LTE defines that one slot consists of 7 OFDM symbols in a standard cyclic prefix (CP), and iTagPro locator one slot includes 6 OFDM symbols in an prolonged CP. FIG. 2 reveals an instance of a useful resource grid for one downlink slot. OFDM symbols in the time area and includes N RB RBs in the frequency area. N RB of useful resource blocks included within the downlink slot relies on a downlink transmission bandwidth set in a cell. One RB features a plurality of subcarriers within the frequency domain. Each component on the resource grid known as a resource factor (RE).