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US 8,913,532 B1Granted
Configurable guard time for wireless networks
AssigneeZTE (USA) Inc.
InventorsYonggang Fang, Wenfeng Zhang, Yu Xin
Life of this patent
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Abstract
Techniques, apparatuses, and systems for wireless communications comprising can include operating a wireless communication system that provides multiple guard time values for different deployment configurations, mapping the guard time values to cyclic prefix (CP) values to reduce an acquisition complexity and reduce an initial synchronization time of a mobile station, and communicating a selected guard time value to a mobile station by transmitting a signal using a cyclic prefix value corresponding to the selected guard time value.
Claims22
A method for wireless communications comprising:
- operating a wireless communication system that provides multiple guard time options for different deployment configurations, wherein the multiple guard time options have different guard time values from one another for a corresponding transition from a forward link (FL) to a reverse link (RL);
- mapping the guard time values to cyclic prefix (CP) values to obtain information on relationship between guard time values and cyclic prefix values and reduce an acquisition complexity and reduce an initial synchronization time of a mobile station;
- providing the information on relationship between guard time values and cyclic prefix values to a mobile station;
- generating a cyclic prefix whose length is indicative of a selected guard time, wherein the cyclic prefix is based on communication data;
- and
- communicating the cyclic prefix and the communication data to the mobile station to operate the mobile station to determine the selected guard time based on the length of the cyclic prefix.
3 more elements
A method comprising:
- receiving a signal from a base station over a time division duplex communication channel in a time division duplex system that provides multiple guard time options for different deployment configurations, wherein the multiple guard time options have different guard time values from one another for a respective transition from a forward link (FL) to a reverse link (RL), and wherein the signal comprises communication data and a cyclic prefix which is based on at least a portion of the communication data;
- decoding the received signal and determining a length of the cyclic prefix;
- determining a unique guard time value based on the determined length of the cyclic prefix;
- after receiving the signal, transmitting a signal to the base station in accordance with the guard time value;
- determining a superframe duration based on the length of the cyclic prefix;
- and
- communicating with the base station in accordance with the superframe duration.
4 more elements
An apparatus comprising:
- transceiver circuitry to communicate with a base station over a time division duplex communication channel in a time division duplex system providing multiple guard time options for different deployment configurations, wherein the multiple guard time options have different guard time values from one another for a transition from a forward link (FL) to a reverse link (RL);
- and
- processing circuitry, in communication with the transceiver circuitry, configured to perform operations comprising:
- processing a signal from the base station, the signal comprising a cyclic prefix and communication data, wherein the cyclic prefix is based on at least a portion of the communication data;
- determining a unique guard time value based on a length of the cyclic prefix;
- transmitting a signal to the base station in accordance with the guard time value;
- decoding at least a portion of the signal to determine the length of the cyclic prefix;
- and
- using the unique guard time for a forward-link (FL) to reverse-link (RL) transition.
6 more elements
A system comprising:
- transceiver circuitry to communicate with a mobile station configured to communicate over a time division duplex communication channel in a time division duplex system providing multiple guard time options for different deployment configurations, wherein the multiple guard time options have different guard time values from one another for a transition from a forward link (FL) to a reverse link (RL);
- and
- processing circuitry in communication with the transceiver circuitry configured to perform operations comprising:
- accessing a guard time value selected from a plurality of guard time values corresponding to multiple forward-link to reverse link-transitions;
- generating a cyclic prefix whose length is indicative of the selected guard time, wherein the cyclic prefix is based on communication data;
- and
- transmitting a signal indicative of the cyclic prefix and the communication data to the mobile station to operate the mobile station to determine the selected guard time based on the length of the cyclic prefix.
4 more elements
Dependencies are inferred from the claim text.