# US 2014/0153669 A1 · Communication apparatus and communication method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153669 A1 - Document ID: US20140153669A1 - Status: Published application - Kind: A1 - Application number: 14/174,391 - Filed: 2014-02-06 - Published: 2014-06-05 - Earliest claimed: 2005-07-29 - Assignees: Panasonic Corporation - Applicants: Panasonic Corporation - Inventors: Daichi IMAMURA; Akihiko Nishio; Kenichi Kuri; Kenichi Miyoshi - Web page: https://patentgrep.com/patent/US20140153669A1 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 25/0202: {Channel estimation} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part in such a manner that realizes the placement decided by the pilot signal insertion control part. ## Claims ### Claim 1 An integrated circuit for controlling a process comprising: mapping a pilot signal for control information or a pilot signal for data to a symbol; and transmitting the pilot signal that is mapped, wherein the pilot signal is mapped such that a number of symbols to which the pilot signal for the control information is mapped are greater than a number of symbols to which the pilot signal for the data is mapped. ### Claim 2 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is mapped such that a number of symbols, to which the pilot signal for the control information is mapped, per a predefined time, are greater than a number of symbols, to which the pilot signal for the data is mapped, per the predefined time. ### Claim 3 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is mapped such that the pilot signal for the control information is denser than the pilot signal for the data. ### Claim 4 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal for the control information is mapped to all subcarriers. ### Claim 5 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal for the control information is mapped to a part of all subcarriers. ### Claim 6 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal for the control information is mapped close to a symbol, to which the control information is mapped. ### Claim 7 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal for the control information is mapped just after a symbol, to which the control information is mapped. ### Claim 8 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal for the control information is mapped just before a symbol, to which the control information is mapped. ### Claim 9 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal for the control information is mapped between symbols, to which the control information is mapped. ### Claim 10 (depends on 1) The integrated circuit according to claim 1, wherein the control information is an ACK/NACK or a channel quality indicator. ### Claim 11 (depends on 1) The integrated circuit according to claim 1, wherein the control information is scheduling information. ### Claim 12 (depends on 1) The integrated circuit according to claim 1, wherein the control information allows little delay. ### Claim 13 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is used for demodulation of the control information or the data. ### Claim 14 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is used for channel estimation. ### Claim 15 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is transmitted by multiplexing with the control information or the data. ### Claim 16 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is transmitted in a single carrier. ### Claim 17 (depends on 1) The integrated circuit according to claim 1, wherein the pilot signal is transmitted by amplifying transmission power thereof. ### Claim 18 An integrated circuit for controlling a process comprising: receiving at least one of a pilot signal for control information and a pilot signal for data to a symbol; and demodulating at least one of the control information and the data using the pilot signal, wherein the pilot signal is mapped such that a number of symbols to which the pilot signal for the control information is mapped are greater than a number of symbols to which the pilot signal for the data is mapped. ### Claim 19 (depends on 18) The integrated circuit according to claim 18, the process further comprises performing a channel estimation using the pilot signal, wherein at least of the control information and the data is demodulated based on the channel estimation. ### Claim 20 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal is mapped such that a number of symbols, to which the pilot signal for the control information is mapped, per a predefined time, are greater than a number of symbols, to which the pilot signal for the data is mapped, per the predefined time. ### Claim 21 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal is mapped such that the pilot signal for the control information is denser than the pilot signal for the data. ### Claim 22 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal for the control information is mapped to all subcarriers. ### Claim 23 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal for the control information is mapped to a part of all subcarriers. ### Claim 24 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal for the control information is mapped close to a symbol, to which the control information is mapped. ### Claim 25 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal for the control information is mapped just after a symbol, to which the control information is mapped. ### Claim 26 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal for the control information is mapped just before a symbol, to which the control information is mapped. ### Claim 27 (depends on 18) The integrated circuit according to claim 18, wherein the pilot signal for the control information is mapped between symbols, to which the control information is mapped. ### Claim 28 (depends on 18) The integrated circuit according to claim 18, wherein the control information is an ACK/NACK or a channel quality indicator. ### Claim 29 (depends on 18) The integrated circuit according to claim 18, wherein the control information is scheduling information. ### Claim 30 (depends on 18) The integrated circuit according to claim 18, wherein the control information allows little delay.