Dynamic Cyclic Prefix Mode for Uplink Radio Resource Management
First Claim
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1. A method comprising:
- receiving, from each of a plurality of mobile devices, an uplink signal;
estimating, based on the received uplink signal, a channel characteristic of an uplink channel for each of the plurality of mobile devices; and
determining, based on comparing the estimated channel characteristic to a characteristic threshold, a cyclic prefix mode for each of the plurality of mobile devices.
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Abstract
Systems and methods can be implemented on a base station and one or more mobile devices to use dynamic cyclic prefix mode for uplink radio resource management. A base station may receive an uplink signal from each of a plurality of mobile devices. The base station can then estimate, based on the received uplink signal, a channel characteristic of the uplink channel for each of the plurality of mobile devices, and determine, based on comparing the estimated channel characteristic to a characteristic threshold, a cyclic prefix mode for each of the plurality of mobile devices.
68 Citations
34 Claims
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1. A method comprising:
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receiving, from each of a plurality of mobile devices, an uplink signal; estimating, based on the received uplink signal, a channel characteristic of an uplink channel for each of the plurality of mobile devices; and determining, based on comparing the estimated channel characteristic to a characteristic threshold, a cyclic prefix mode for each of the plurality of mobile devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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transmitting, to a base station, a first signal using a first cyclic prefix mode associated with a first cyclic prefix length; receiving, from the base station, an indicator indicating an updated cyclic prefix mode, wherein the updated cyclic prefix mode is either the first cyclic prefix mode associated with a first cyclic prefix length or the second cyclic prefix mode associated with a second cyclic prefix length; receiving, from the base station, scheduling information identifying a radio resource for an uplink signal transmission; and transmitting, to the base station, a second signal using the updated cyclic prefix mode and the radio resource identified in the received scheduling information. - View Dependent Claims (14, 15, 16, 17)
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18. A base station comprising:
at least one hardware processor operable to execute instructions to; receive, from each of a plurality of mobile devices, an uplink signal; estimate, based on the received uplink signal, a channel characteristic of an uplink channel for each of the plurality of mobile devices; and determine, based on comparing the estimated channel characteristic to a characteristic threshold, a cyclic prefix mode for each of the plurality of mobile devices. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A mobile device comprising:
at least one hardware processor operable to execute instructions to; transmit, to a base station, a first signal using a first cyclic prefix mode associated with a first cyclic prefix length; receive, from the base station, an indicator indicating an updated cyclic prefix mode, wherein the updated cyclic prefix mode is either the first cyclic prefix mode associated with a first cyclic prefix length or a second cyclic prefix mode associated with a second cyclic prefix length; receive, from the base station, scheduling information identifying a radio resource for an uplink signal transmission; and transmit, to the base station, a second signal using the updated cyclic prefix mode and the radio resource identified in the received scheduling information. - View Dependent Claims (31, 32, 33, 34)
Specification