Reference signals resembling -particular reference signal (PSS), major iTagPro device synchronization signal (PSS) / secondary synchronization sign (SSS), and iTagPro technology control channels resembling physical downlink management channel (PDCCH) and bodily broadcast channel (PBCH) are defined. This type of service is named an extension provider or a new service type (NCT). An object of the present invention is to supply a channel measuring methodology and a device using the identical in a wireless communication system. Another object of the present invention is to offer a way for stopping a collision of a reference sign and an apparatus utilizing the identical. RF (radio freqeuncy) unit for transmitting and receiving a radio signal and a processor linked to the RF unit. RRC layer of the primary cell. FIG. 2 exhibits an instance of a resource grid for one downlink slot. 3 shows a construction of a downlink subframe. FIG. 4 is an exemplary diagram illustrating monitoring of a bodily downlink management channel (PDCCH). FIG. 5 reveals an instance during which a reference signal and a control channel are arranged in a downlink subframe of 3GPP LTE.

FIG. 7 exhibits an instance of a physical resource block (PRB) pair. FIG. 10 exhibits an example of a subframe structure of a single service system and a carrier aggregation system. FIG. Eleven shows an example of a subframe construction of a 3GPP LTE-A (advanced) system that's cross-carrier scheduled through a provider indicator subject. FIG. 13 illustrates a channel measuring method in a wireless communication system in keeping with an embodiment of the present invention. FIG. 14 is a block diagram illustrating a wireless communication system during which an embodiment of the present invention is implemented. CDMA could also be implemented by a radio expertise such as common terrestrial radio access (UTRA) or CDMA2000. TDMA may be applied with wireless technologies equivalent to world system for cellular communications (GSM) / basic packet radio service (GPRS) / enhanced data charges for GSM evolution (EDGE). OFDMA may be applied by wireless applied sciences akin to Institute of Electrical and Electronics Engineers (IEEE) 802.Eleven (Wi-Fi), IEEE 802.Sixteen (WiMAX), iTagPro technology IEEE 802-20, evolved UTRA (E-UTRA), and the like.

UTRA is a part of a universal cellular telecommunications system (UMTS). Third generation partnership challenge (3GPP) long run evolution (LTE) is a part of developed UMTS (E-UMTS) using advanced-UMTS terrestrial radio access (E-UTRA), which employs OFDMA in downlink and SC in uplink -FDMA is adopted. LTE-A (advanced) is the evolution of 3GPP LTE. It may be known as other phrases reminiscent of digital assistant, wireless modem, handheld gadget. NodeB (eNB), a base transceiver system (BTS), an access level (AP), and the like. LTE consists of LTE and iTagPro technology / or ItagPro LTE-A. 1 exhibits a radio frame structure in 3GPP LTE. One subframe includes 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 in the frequency area. OFDM symbol is used to represent one image interval since 3GPP LTE makes use of OFDMA in downlink, and may be referred to as a different identify based on a a number of entry scheme.

SC-FDMA when SC-FDMA is used as an uplink a number of entry scheme, the OFDM image may be known as an SC-FDMA image. FIG. 1 is merely an example. Accordingly, the number of subframes included within the radio frame, the number of slots included within the subframe, or iTagPro website the number of OFDM symbols included in the slot could also be variously changed. 3GPP LTE defines that one slot contains 7 OFDM symbols in a standard cyclic prefix (CP), and one slot contains 6 OFDM symbols in an prolonged CP. FIG. 2 shows an example of a resource grid for one downlink slot. OFDM symbols in the time domain and consists of N RB RBs within the frequency domain. N RB of useful resource blocks included in the downlink slot is determined by a downlink transmission bandwidth set in a cell. One RB includes a plurality of subcarriers in the frequency domain. Each ingredient on the resource grid is called a resource element (RE).