Timing advance enhancements for cellular communications
First Claim
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1. A method to communicate over a cellular network by a device, comprising:
- retrieving a stored timing advance value;
determining if the stored timing advance value is valid based at least on whether the device is operating in a stationary mode in which the device transmits using a previously stored timing advance value without failing; and
when the stored timing advance is valid, transmitting a contention-based transmission to a network using the stored timing advance value in order to compensate for propagation delay.
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Abstract
Example methods and apparatus to implement timing advance enhancements for cellular communications are disclosed. A disclosed example method to communicate over a cellular network by a device involves retrieving a stored timing advance value and determining if the stored timing advance value is valid based at least on whether the device is operating in a stationary mode. When the stored timing advance is valid, a contention-based transmission is transmitted to a network using the stored timing advance value in order to compensate for propagation delay.
87 Citations
21 Claims
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1. A method to communicate over a cellular network by a device, comprising:
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retrieving a stored timing advance value; determining if the stored timing advance value is valid based at least on whether the device is operating in a stationary mode in which the device transmits using a previously stored timing advance value without failing; and when the stored timing advance is valid, transmitting a contention-based transmission to a network using the stored timing advance value in order to compensate for propagation delay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mobile station (MS) for communicating over a cellular network, comprising:
a processor configured to; retrieve a stored timing advance value; determine if the stored timing advance value is valid based at least on whether the mobile station is operating in a stationary mode in which the mobile station transmits using a previously stored timing advance value without failing; and when the stored timing advance is valid, transmitting a contention-based transmission to a network using the stored timing advance value in order to compensate for propagation delay. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
Specification