Method and apparatus for sending physics uplink control signal in TDD system
A time-division duplex system and control signal technology, applied in the field of communication, can solve the problem of high PAR, achieve the effect of solving high PAR, meeting performance requirements and coverage requirements
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[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0027] Figure 2 is used to send the format 2 of the PUCCH (that is, the channel quality indicator CQI (Channel Quality Indicator)). In the schematic diagram, a 1 ms PUCCH includes two 0.5 ms time slots, and the two time slots are respectively located in the upper and lower frequency bands of the system bandwidth in the frequency domain. When the PUCCH uses a conventional cyclic prefix, 7 symbols are included in the 0.5ms time slot, numbered #0-#6, and each symbol includes 12 subcarriers in the frequency domain. Among them, 7 symbols numbered #1 and #5 are used to send reference signals, and 5 symbols #0, #2 to #4 and #6 are used to send CQI information to be carried. The PUCCH reference signal structure 2 shown in Figure 2 is used to carry CQI information, assuming that the CQI bit information to be sent is M, and the sending proces...
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