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
The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises 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 in a mobile terminal comprising:
- transmitting, by the mobile terminal, a synchronization request for synchronization information;
- receiving, at the mobile terminal, synchronization information in response to the synchronization request;
- transmitting, by the mobile terminal 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 utilized 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 in a radio base station comprising:
- receiving, at the radio base station, a synchronization request for synchronization information;
- transmitting, by the radio base station based on the synchronization request, the synchronization information;
- receiving, at the radio base station, a resource request for data transmission resources, the resource request for data transmission resources based on at least one transmission parameter adjusted according to the synchronization information;
- and
- using a timer mechanism providing an indication related to the validity of the at least one transmission parameter utilized by a 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 one or more processors, the one or more processors configured to:
- transmit, from the mobile terminal, a synchronization request for synchronization information;
- receive, at the mobile terminal, synchronization information in response to the synchronization request;
- transmit, from the mobile terminal based on at least one transmission parameter adjusted according to the synchronization information, a resource request for data transmission resources;
- and
- 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 radio base station comprising one or more processors, the one or more processors configured to:
- receive, at the radio base station, a synchronization request for synchronization information;
- transmit, from the radio base station based on the synchronization request, the synchronization information;
- receive, at the radio base station, a resource request for data transmission resources, the resource request for data transmission resources based on at least one transmission parameter adjusted according to the synchronization information;
- and
- 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.