Abstract
A radio communication method in a radio communication system in which data signals for a first and second user are respectively transmitted using first and second subcarrier groups and pilot signals for the first and second users are multiplexed using time-division multiplexing with the data signals for those users including arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user and mapping subcarrier components of the pilot signals so that one of subcarrier components of higher frequencies corresponds to one of subcarrier components of lower frequencies wherein the pilot signals are generated using a Zadoff-Chu sequence.
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Signal Processing Resource configuration
Product
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Use Cases
Wireless communication
Services
Not Available
Claim
1. A radio communication method in a radio communication system in which data signals for a first and second user are respectively transmitted using first and second subcarrier groups, and pilot signals for the first and second users are multiplexed using time-division multiplexing with the data signals for those users, comprising:
arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user; and
copying one of the lower frequency components of the pilot signal and mapping the copied components as one of higher frequency components of the pilot signal, wherein the pilot signals are generated using a Zadoff-Chu sequence.', 'arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user; and', 'copying one of the lower frequency components of the pilot signal and mapping the copied components as one of higher frequency components of the pilot signal, wherein the pilot signals are generated using a Zadoff-Chu sequence.
2. The radio communication method according to claim 1, wherein the mapping subcarrier components includes:
copying one of the lower frequency components of the pilot signal for the first user and mapping the copied components as one of the higher frequency components of the pilot signal for the first user; and
copying one of the higher frequency components of the pilot signal for the second user and mapping the copied components as one of the lower frequency components of the pilot signal for the second user.', 'copying one of the lower frequency components of the pilot signal for the first user and mapping the copied components as one of the higher frequency components of the pilot signal for the first user; and', 'copying one of the higher frequency components of the pilot signal for the second user and mapping the copied components as one of the lower frequency components of the pilot signal for the second user.
3. A radio communication method in a radio communication system in which data signals for a first and second user are respectively transmitted using first and second subcarrier groups, and pilot signals for the first and second users are multiplexed using time-division multiplexing with the data signals for those users, comprising:
arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user; and
mapping subcarrier components of the pilot signals so that one of subcarrier components of higher frequencies corresponds to one of subcarrier components of lower frequencies, wherein the pilot signals are generated using a Zadoff-Chu sequence, wherein the mapping subcarrier components includes:
copying one of the subcarrier components of lower frequencies of the first user and mapping the copied components as one of the subcarrier components of higher frequencies of the first user; and
copying one of the subcarrier components of higher frequencies of the second user and mapping the copied components as one of the subcarrier components of lower frequencies of the second user.', 'arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user; and', 'mapping subcarrier components of the pilot signals so that one of subcarrier components of higher frequencies corresponds to one of subcarrier components of lower frequencies, wherein the pilot signals are generated using a Zadoff-Chu sequence, wherein the mapping subcarrier components includes:', 'copying one of the subcarrier components of lower frequencies of the first user and mapping the copied components as one of the subcarrier components of higher frequencies of the first user; and', 'copying one of the subcarrier components of higher frequencies of the second user and mapping the copied components as one of the subcarrier components of lower frequencies of the second user.
4. A radio communication method in a radio communication system in which data signals for a first and second user are respectively transmitted using first and second subcarrier groups, and pilot signals for the first and second users are multiplexed using time-division multiplexing with the data signals for those users, comprising:
arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user; and
mapping one of higher frequency components of the pilot signals to one of lower frequency components, wherein the pilot signals are generated using a Zadoff-Chu sequence, said mapping including:
copying one of the lower frequency components of the pilot signal for the first user and mapping the copied components as one of the higher frequency components of the pilot signal for the first user; and
copying one of the higher frequency components of the pilot signal for the second user and mapping the copied components as one of the lower frequency components of the pilot signal for the second user.', 'arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user; and', 'mapping one of higher frequency components of the pilot signals to one of lower frequency components, wherein the pilot signals are generated using a Zadoff-Chu sequence, said mapping including:', 'copying one of the lower frequency components of the pilot signal for the first user and mapping the copied components as one of the higher frequency components of the pilot signal for the first user; and', 'copying one of the higher frequency components of the pilot signal for the second user and mapping the copied components as one of the lower frequency components of the pilot signal for the second user.']
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