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.
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Specification Information
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Technologies
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Technologies
Resource configuration Random access Synchronization
Product
Base Station (eNB/gNB)User Equipment (UE/Terminal)
Use Cases
Wireless communication
Services
Transmitting/receiving data in uplink
Claim
1. A method of operating a mobile terminal in a random access procedure performed over a radio interface, the method comprising the following steps in a mobile terminal:
transmitting a synchronization request for synchronization information;
receiving synchronization information in response to the synchronization request;
transmitting a resource request for data transmission resources based on at least one transmission parameter adjusted in accordance with the synchronization information;
transmitting data using resources scheduled in response to the resource request so long as the terminal remains in synchronization or until expiry of a synchronization timer; and
starting the synchronization timer in response to reception of synchronization information, wherein after expiry of the synchronization timer a resynchronization is required prior to any data transmission following the expiry of the synchronization timer.', 'transmitting a synchronization request for synchronization information;', 'receiving synchronization information in response to the synchronization request;', 'transmitting a resource request for data transmission resources based on at least one transmission parameter adjusted in accordance with the synchronization information;', 'transmitting data using resources scheduled in response to the resource request so long as the terminal remains in synchronization or until expiry of a synchronization timer; and', 'starting the synchronization timer in response to reception of synchronization information, wherein after expiry of the synchronization timer a resynchronization is required prior to any data transmission following the expiry of the synchronization timer.
2. The method according to claim 1, further comprising:
receiving resource information in response to the resource request; and
transmitting data using resources in accordance with the resource information.', 'receiving resource information in response to the resource request; and', 'transmitting data using resources in accordance with the resource information.
3. The method according to claim 2, further comprising transmitting, in case further data is to be transmitted, at least one further resource request.
4. The method according to claim 1, wherein the synchronization timer is set according to a predicted validity of the synchronization information.
5. The method according to claim 1, wherein the synchronization timer is set according to a measured velocity of the mobile terminal.
6. The method according to claim 1, wherein a further synchronization request is transmitted on expiry of the synchronization timer.
7. The method according to claim 1, further comprising transmitting at least one ping signal for maintaining synchronization.
8. The method according to claim 7, wherein the ping signal comprises signalling data.
9. The method according to claim 7, wherein the ping signal is transmitted in response to a polling request received over the radio interface
10. The method according to claim 7, further comprising transmitting at least one ping signal for maintaining synchronization is for providing a basis for measurement of uplink synchronization
11. The method according to claim 1, further comprising transmitting the data using the resources scheduled in response to the resource request without transmitting a further synchronization request so long as the terminal remains in synchronization or until expiry of the synchronization timer
12. A method of operating a radio base station in a random access procedure performed over a radio interface, the method comprising:
receiving a synchronization request for synchronization information from a mobile terminal;
transmitting, based on the synchronization request, the synchronization information to the mobile terminal;
receiving, based on at least one transmission parameter adjusted according to the synchronization information, a resource request for data transmission resources from the mobile terminal;
scheduling data transmission resources in response to the resource request and receiving data over the scheduled data resources so long as the terminal remains in synchronization or until expiry of a synchronization timer; and
receiving a further synchronization request from the mobile terminal after expiry of a synchronization timer in the mobile terminal, wherein the synchronization timer is started in response to reception of the synchronization information in the mobile terminal.', 'receiving a synchronization request for synchronization information from a mobile terminal;', 'transmitting, based on the synchronization request, the synchronization information to the mobile terminal;', 'receiving, based on at least one transmission parameter adjusted according to the synchronization information, a resource request for data transmission resources from the mobile terminal;', 'scheduling data transmission resources in response to the resource request and receiving data over the scheduled data resources so long as the terminal remains in synchronization or until expiry of a synchronization timer; and', 'receiving a further synchronization request from the mobile terminal after expiry of a synchronization timer in the mobile terminal, wherein the synchronization timer is started in response to reception of the synchronization information in the mobile terminal
13. The method according to claim 12, further comprising:
transmitting resource information in response to the resource request; and
scheduling resources according to the resource information.', 'transmitting resource information in response to the resource request; and', 'scheduling resources according to the resource information
14. The method according to claim 12, further comprising receiving at least one further resource request
15. The method according to claim 12, further comprising starting a synchronization timer in response to at least one of the reception of the synchronization request, the reception of the resource request and the reception of data
16. The method according to claim 15, further comprising transmitting, on expiry of the synchronization timer, a request for a ping signal
17. The method according to claim 16, further comprising transmitting at least one ping signal for maintaining synchronization is for providing a basis for measurement of uplink synchronization
18. The method according to claim 12, further comprising scheduling the data transmission resources in response to the resource request and receiving the data over the scheduled data resources without receiving a further synchronization request so long as the terminal remains in synchronization or until expiry of the synchronization timer
19. A computer program product comprising program code portions stored on a non-transitory computer readable recording medium which, when executed on one or more computing devices, performing acts of:
transmitting a synchronization request for synchronization information;
receiving synchronization information in response to the synchronization request;
transmitting a resource request for data transmission resources based on at least one transmission parameter adjusted in accordance with the synchronization information;
transmitting data using resources scheduled in response to the resource request so long as the terminal remains in synchronization or until expiry of a synchronization timer; and
starting a synchronization timer in response to reception of synchronization information, wherein after expiry of the synchronization timer a resynchronization is required prior to any data transmission following the expiry of the synchronization timer.', 'transmitting a synchronization request for synchronization information;', 'receiving synchronization information in response to the synchronization request;', 'transmitting a resource request for data transmission resources based on at least one transmission parameter adjusted in accordance with the synchronization information;', 'transmitting data using resources scheduled in response to the resource request so long as the terminal remains in synchronization or until expiry of a synchronization timer; and', 'starting a synchronization timer in response to reception of synchronization information, wherein after expiry of the synchronization timer a resynchronization is required prior to any data transmission following the expiry of the synchronization timer.
20. The computer program product of claim 19, wherein the program code portions performing the acts of transmitting the data using the resources scheduled in response to the resource request without transmitting a further synchronization request so long as the terminal remains in synchronization or until expiry of a synchronization timer.
21. 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;
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;
the transmission control component being further adapted to transmit data using resources scheduled in response to the resource request so long as the terminal remains in synchronization or until expiry of a synchronization timer; and
a component adapted for starting a synchronization timer in response to reception of synchronization information, wherein after expiry of the synchronization timer a resynchronization is required prior to any data transmission following the expiry of the synchronization timer.', '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;', '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;', 'the transmission control component being further adapted to transmit data using resources scheduled in response to the resource request so long as the terminal remains in synchronization or until expiry of a synchronization timer; and', 'a component adapted for starting a synchronization timer in response to reception of synchronization information, wherein after expiry of the synchronization timer a resynchronization is required prior to any data transmission following the expiry of the synchronization timer.
22. The mobile terminal of claim 19, wherein the transmission control component is further adapted to transmit the data using the resources scheduled in response to the resource request without transmitting a further synchronization request so long as the terminal remains in synchronization or until expiry of the synchronization timer.
23. A radio base station adapted for performing a random access procedure over a radio interface, the radio base station comprising:
a sync-request component adapted for receiving a synchronization request for synchronization information from a mobile terminal;
a sync-response component adapted for transmitting, based on the synchronization request, the synchronization information to the mobile terminal;
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 from the mobile terminal;
the resource scheduling component being further adapted in response to the resource request to receive data over scheduled data resources so long as the terminal remains in synchronization or until expiry of a synchronization timer; and
a component adapted for receiving a further synchronization request from the mobile terminal after expiry of a synchronization timer in the mobile terminal, wherein the synchronization timer is started in response to reception of the synchronization information in the mobile terminal.', 'a sync-request component adapted for receiving a synchronization request for synchronization information from a mobile terminal;', 'a sync-response component adapted for transmitting, based on the synchronization request, the synchronization information to the mobile terminal;', '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 from the mobile terminal;', 'the resource scheduling component being further adapted in response to the resource request to receive data over scheduled data resources so long as the terminal remains in synchronization or until expiry of a synchronization timer; and', 'a component adapted for receiving a further synchronization request from the mobile terminal after expiry of a synchronization timer in the mobile terminal, wherein the synchronization timer is started in response to reception of the synchronization information in the mobile terminal.
24. The radio base station of claim 23, wherein the resource scheduling component is further adapted in response to the resource request to receive the data over the scheduled data resources without receiving a further synchronization request so long as the terminal remains in synchronization or until expiry of the synchronization timer.']
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.