Reference alerts comparable to -particular reference sign (PSS), main synchronization sign (PSS) / secondary synchronization sign (SSS), ItagPro and control channels akin to bodily downlink management channel (PDCCH) and bodily broadcast channel (PBCH) are defined. Such a carrier known as an extension service or a brand new carrier sort (NCT). An object of the current invention is to offer a channel measuring method and a system utilizing the same in a wireless communication system. Another object of the present invention is to provide a technique for preventing a collision of a reference sign and an apparatus using 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 first cell. FIG. 2 reveals an instance of a useful resource grid for one downlink slot. Three exhibits a structure of a downlink subframe. FIG. Four is an exemplary diagram illustrating monitoring of a physical downlink control channel (PDCCH). FIG. 5 exhibits an instance by which a reference sign and a management channel are organized in a downlink subframe of 3GPP LTE.

FIG. 7 exhibits an instance of a bodily useful resource block (PRB) pair. FIG. 10 reveals an example of a subframe construction of a single provider system and a service aggregation system. FIG. 11 reveals an example of a subframe structure of a 3GPP LTE-A (advanced) system that is cross-carrier scheduled by means of a carrier indicator ItagPro discipline. FIG. Thirteen illustrates a channel measuring technique 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 by which an embodiment of the current invention is carried out. CDMA could also be implemented by a radio expertise corresponding to common terrestrial radio access (UTRA) or CDMA2000. TDMA may be applied with wireless technologies corresponding to world system for cell communications (GSM) / general packet radio service (GPRS) / enhanced knowledge charges for GSM evolution (EDGE). OFDMA may be carried out by wireless applied sciences reminiscent of Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.Sixteen (WiMAX), IEEE 802-20, developed UTRA (E-UTRA), and ItagPro the like.

UTRA is part of a common mobile telecommunications system (UMTS). Third technology partnership mission (3GPP) long term evolution (LTE) is part of advanced UMTS (E-UMTS) utilizing developed-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 could also be known as other terms reminiscent of digital assistant, wireless modem, handheld machine. NodeB (eNB), a base transceiver system (BTS), an access level (AP), and the like. LTE consists of LTE and / or LTE-A. 1 exhibits a radio frame structure in 3GPP LTE. One subframe consists of two consecutive slots. TTI may be known as a scheduling unit for information transmission. One slot includes a plurality of orthogonal frequency division multiplexing (OFDM) symbols in the time area and a plurality of subcarriers in the frequency area. OFDM symbol is used to characterize one symbol period since 3GPP LTE makes use of OFDMA in downlink, ItagPro and may be referred to as a distinct title according to a a number of entry scheme.

SC-FDMA when SC-FDMA is used as an uplink a number of access scheme, the OFDM symbol could also be referred to as an SC-FDMA symbol. FIG. 1 is merely an example. Accordingly, ItagPro the variety of subframes included in the radio frame, the number of slots included within the subframe, or the variety of OFDM symbols included within the slot may be variously modified. 3GPP LTE defines that one slot contains 7 OFDM symbols in a normal cyclic prefix (CP), and one slot contains 6 OFDM symbols in an prolonged CP. FIG. 2 exhibits an example of a resource grid for one downlink slot. OFDM symbols within the time domain and includes N RB RBs in the frequency domain. N RB of useful resource blocks included in the downlink slot will depend on a downlink transmission bandwidth set in a cell. One RB includes a plurality of subcarriers within the frequency domain. Each ingredient on the resource grid is called a resource element (RE).

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Pub: 11 Sep 2025 04:17 UTC

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