SYNCHRONIZATION TECHNIQUES USING FREQUENCY HOPPING IN UNLICENSED RADIO FREQUENCY SPECTRUM
First Claim
1. A method for wireless communication, comprising:
- receiving, on a first hop frequency of a plurality of available hop frequencies in an unlicensed radio frequency spectrum band, two or more synchronization signals from a first base station;
identifying a first synchronization signal of the first base station based at least in part on the received two or more synchronization signals; and
receiving, on the first hop frequency, a second synchronization signal of the first base station based at least in part on a periodicity of synchronization signal transmissions on one or more hop frequencies of the plurality of available hop frequencies.
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Accused Products
Abstract
Described techniques provide for transmission of synchronization signals using frequency hopping across a number of hopping frequencies in unlicensed or shared radio frequency spectrum. A base station may identify a set of hop frequencies for transmitting synchronization signals, and transmit synchronization signals using a hopping pattern over the hop frequencies. A user equipment (UE) seeking to identify the base station may monitor one or more of the hop frequencies to identify one or more synchronization signals on the hop frequency. A system timing may be identified in some cases, and one or more base station IDs may be identified. In some cases, a hop frequency may be monitored for a duration that may span the transmission of two or more synchronization signals of a particular base station, based on a periodicity of synchronization signal transmissions on each hop frequency.
34 Citations
30 Claims
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1. A method for wireless communication, comprising:
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receiving, on a first hop frequency of a plurality of available hop frequencies in an unlicensed radio frequency spectrum band, two or more synchronization signals from a first base station; identifying a first synchronization signal of the first base station based at least in part on the received two or more synchronization signals; and receiving, on the first hop frequency, a second synchronization signal of the first base station based at least in part on a periodicity of synchronization signal transmissions on one or more hop frequencies of the plurality of available hop frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18)
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12. A method for wireless communication, comprising:
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identifying a set of hop frequencies in an unlicensed radio frequency spectrum band for transmitting synchronization signals; identifying a hopping pattern for transmitting synchronization signals on each hop frequency of the set of hop frequencies; and transmitting the synchronization signals on each hop frequency of the set of hop frequencies according to the hopping pattern.
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19. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to; receive, on a first hop frequency of a plurality of available hop frequencies in an unlicensed radio frequency spectrum band, two or more synchronization signals from a first base station; identify a first synchronization signal of the first base station based at least in part on the received two or more synchronization signals; and receive, on the first hop frequency, a second synchronization signal of the first base station based at least in part on a periodicity of synchronization signal transmissions on one or more hop frequencies of the plurality of available hop frequencies. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to; identify a set of hop frequencies in an unlicensed radio frequency spectrum band for transmitting synchronization signals; identify a hopping pattern for transmitting synchronization signals on each hop frequency of the set of hop frequencies; and transmit the synchronization signals on each hop frequency of the set of hop frequencies according to the hopping pattern. - View Dependent Claims (30)
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Specification