Technique for Performing a Random Access Procedure Over a Radio Interface
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRobert Baldemair, Maria Edvardsson, Erik Dahlman, Jacobus Cornelis Haartsen, Stefan Parkvall
Life of this patent
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Abstract
Systems and methods are provided for performing a random access procedure over a radio interface such as, for example, between a mobile terminal and a radio base station of a mobile network. For example, a method includes the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources.
Claims20
A method of performing a random access procedure over a radio interface, the method comprising the following steps:
- transmitting a synchronization request for synchronization information;
- receiving synchronization information in response to the synchronization request;
- and
- transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources, and,
- using a timer mechanism providing an indication related to the validity of the at least one transmission parameter used by the mobile terminal to keep the mobile terminal in synchronization.
A method of performing a random access procedure over a radio interface, the method comprising the following steps in a radio base station:
- receiving a synchronization request for synchronization information;
- transmitting, based on the synchronization request, the synchronization information;
- and
- receiving, based on at least one transmission parameter adjusted according to the synchronization information, a resource request for data transmission resources;
- and,
- using a timer mechanism providing an indication related to the validity of the at least one transmission parameter used by the mobile terminal to keep the mobile terminal in synchronization.
A mobile terminal adapted for performing a random access procedure over a radio interface, the mobile terminal comprising:
- a sync-request component adapted for transmitting a synchronization request for synchronization information;
- a sync-response component adapted for receiving synchronization information in response to the synchronization request;
- and a transmission control component adapted for transmitting, based on at least one transmission parameter adjusted according to the synchronization information, a resource request for data transmission resources, and,
- a timer component adapted to provide an indication related to the validity of the at least one transmission parameter used by the mobile terminal to keep the mobile terminal in synchronization.
A radio base station adapted for performing a random access procedure over a radio interface, the base station comprising:
- a sync-request component adapted for receiving a synchronization request for synchronization information;
- a sync-response component adapted for transmitting, based on the synchronization request, the synchronization information;
- and a resource scheduling component adapted for receiving, based on at least one transmission parameter adjusted according to the synchronization information, a resource request for data transmission resources, and
- a timer component adapted to provide an indication related to the validity of the at least one transmission parameter used by the mobile terminal to keep the mobile terminal in synchronization.
Dependencies are inferred from the claim text.