Method and apparatus for timing advance
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorZhipeng Lin
Life of this patent
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Abstract
Embodiments of the present disclosure provide methods, apparatus, and computer program products for timing advance. A method in a wireless device, comprises: determining if a timing advance command received in a media access control (MAC) control element is an absolute timing advance command; and when it is determined that the timing advance command is an absolute timing advance command, determining a timing advance based on all bits of the timing advance command.
Claims14
A method in a wireless communication device, comprising:
- determining if a timing advance command received in a media access control (MAC) control element is an absolute timing advance command;
- and
- determining, when it is determined that the timing advance command is an absolute timing advance command, a timing advance based on all bits of the timing advance command;
- wherein a size of the timing advance command is 12 bits;
- wherein determining a timing advance based on all bits of the timing advance command comprises:
- determining a first timing advance from 7 most significant bits in 12 bits of the timing advance command;
- determining a second timing advance from 5 least significant bits in the 12 bits of the timing advance command;
- and
- determining the timing advance in a same way as a normal timing advance command, by taking the first timing advance as an old timing advance and taking the second timing advance as an adjustment of timing advance.
An apparatus configured to operate as a wireless communication device, the apparatus comprising:
- one or more processors;
- and
- one or more memories comprising computer program codes,
- the one or more memories and the computer program codes configured to, with the one or more processors, cause the apparatus to:
- determine if a timing advance command received in a media access control (MAC) control element is an absolute timing advance command;
- and
- determine, when it is determined that the timing advance command is an absolute timing advance command, a timing advance based on all bits of the timing advance command;
- wherein a size of the timing advance command is 12 bits;
- wherein determining a timing advance based on all bits of the timing advance command comprises the one or more memories and the computer program codes configured to, with the one or more processors, cause the apparatus to:
- determine a first timing advance from 7 most significant bits in 12 bits of the timing advance command;
- determine a second timing advance from 5 least significant bits in the 12 bits of the timing advance command;
- and
- determine the timing advance in a same way as a normal timing advance command, by taking the first timing advance as an old timing advance and taking the second timing advance as an adjustment of timing advance.
A non-transitory computer-readable medium having computer program codes embodied thereon which, when executed on a computer, cause the computer to:
- determine if a timing advance command received in a media access control (MAC) control element is an absolute timing advance command;
- and
- determine, when it is determined that the timing advance command is an absolute timing advance command, a timing advance based on all bits of the timing advance command;
- wherein a size of the timing advance command is 12 bits;
- wherein determining a timing advance based on all bits of the timing advance command comprises the program codes to further cause the computer to:
- determine a first timing advance from 7 most significant bits in 12 bits of the timing advance command;
- determine a second timing advance from 5 least significant bits in the 12 bits of the timing advance command;
- and
- determine the timing advance in a same way as a normal timing advance command, by taking the first timing advance as an old timing advance and taking the second timing advance as an adjustment of timing advance.
Dependencies are inferred from the claim text.