Method for uplink transmission in OFDM(A) system
AssigneeLG Electronics Inc.
InventorsMin Seok Noh, Yeong Hyeon Kwon, Sung Ho Moon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee, Jin Soo Choi
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Abstract
A method for uplink transmission in an OFDMA system is provided. The subcarrier transmission method includes arranging 4 pilot REs at different positions of a frequency axis in a basic unit when the basic unit includes 4 subcarriers on the frequency axis and 6 OFDM(A) symbols in a time axis, arranging data REs at remaining positions of the basic unit, and transmitting the basic unit to a receiving end.
Claims13
A method of transmitting a basic unit in uplink by a mobile station (MS) in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising:
- forming the basic unit which size is 4 subcarriers by 6 OFDMA symbols, the basic unit containing a plurality of pilot and data resource elements (REs);
- configuring the pilot REs for multiple antennas in the basic unit at intervals of 3 subcarriers in a frequency axis and at intervals of 5 OFDMA symbols in a time axis;
- and
- transmitting the basic unit in uplink,
- wherein the RE is a time-frequency resource defined by one OFDMA symbol and one subcarrier,
- wherein the pilot and data REs are configured in the basic unit as in Pattern Table 2 expressed as follows:
- PATTERN TABLE 2
- s = 0
- s = 1
- s = 2
- s = 3
- s = 4
- s = 5
- SC = 0
- P0
- —
- —
- —
- —
- P1
- SC = 1
- —
- —
- —
- —
- —
- —
- SC = 2
- —
- —
- —
- —
- —
- —
- SC = 3
- P1
- —
- —
- —
- —
- P0
- where
- “P0” and “P1” indicate respective pilot REs for antenna ports 0 and 1,
- “—” indicates the data RE,
- “s” indicates an OFDMA symbol index, and
- “SC” indicates a subcarrier index.
Dependencies are inferred from the claim text.