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 of performing a random access procedure over a radio interface (106) in a mobile terminal (102). A method embodiment or the random access procedure as performed in the mobile terminal comprises the steps of selecting an access time slot for transmission of an access burst (112) over the radio interface; and setting an access bandwidth for transmission of the access burst, wherein the access bandwidth is set smaller than an available transmission bandwidth associated with the radio interface.
Claims19
A method in a mobile terminal of performing a random access procedure over a radio interface, the method comprising:
- selecting an access time slot for transmission of an access burst over the radio interface;
- and
- setting one of a first access bandwidth or a second access bandwidth for a transmission channel for transmission of the access burst,
- wherein the set access bandwidth of the transmission channel is set smaller than an available system transmission bandwidth for uplink channels associated with the radio interface, and
- wherein the set access bandwidth corresponds to an access bandwidth for an access filter applied in a base station during the access time slot to receive the access burst.
A method in a base station of providing a random access channel for a radio interface, the method comprising:
- defining access time slots for the random access channel;
- setting a first access bandwidth for a first access request channel or a second access bandwidth for a second access request channel;
- and
- selecting the first access request channel or the second access request channel for reception of an access burst,
- wherein the access bandwidth of the selected access request channel is set smaller than an available system transmission bandwidth for uplink transmission channels associated with the radio interface, and
- applying an access filter, having an access bandwidth of the selected access request channel, during the access time slot to receive the access burst.
A mobile terminal for performing a random access procedure over a radio interface, the terminal comprising:
- a time slot component configured to select an access time slot for transmission of an access burst over the radio interface;
- and
- a bandwidth component configured to set one of a first access bandwidth or a second access bandwidth for a transmission channel for transmission of the access burst,
- wherein the set bandwidth component is configured to set the access bandwidth of the transmission channel smaller than an available system transmission bandwidth for uplink channel transmissions associated with the radio interface, and
- wherein the set access bandwidth corresponds to an access bandwidth for an access filter applied in a base station during the access time slot to receive the access burst.
A radio base station for providing a random access channel for a radio interface, the radio base station comprising:
- a time slot component configured to define an access time slot for the random access channel;
- a bandwidth component configured to set a first access bandwidth for a first access request channel or a second access bandwidth for a second access request channel;
- and
- an access filter configured to filter an access burst received during the access time slot, the access filter having a bandwidth corresponding to the first access bandwidth or the second access bandwidth,
- wherein the access filter bandwidth is smaller than an available system transmission bandwidth for uplink channel transmissions associated with the radio interface.
Dependencies are inferred from the claim text.