Connection establishment of a terminal over a relay node in a wireless communication system
A method carried out in a terminal ( 100 ) for setting up a connection with a wireless communication network including a network node ( 10 ), comprising transmitting terminal preference data ( 51 ) to the radio network, said terminal preference data indicating terminal preference to receive one of direct or indirect downlink transmission when the terminal ( 100 ) operates over a relay in the uplink; transmitting a service request ( 54 ) to the network node ( 10 ) over a relay ( 200 ); receiving information ( 57 ) from the network node ( 10 ) indicating direct or indirect downlink data transmission; receiving resource data ( 58 ) for a connection configured according to said information.
1. A method carried out in a terminal for setting up a connection with a radio network including a network node, the method comprising:
transmitting terminal preference data to the radio network in an uplink transmission, said terminal preference data indicating a preference of the terminal to receive one of direct or indirect downlink transmission when the terminal operates or intends to operate over a relay of the radio network;
transmitting a service request to the network node over the relay, wherein the service request is associated with a data connection with the radio network;
receiving information from the network node indicating a selection of a one of the direct or indirect downlink data transmission of the data connection; and
receiving resource data for a connection with the radio network configured according to said received information.
2. The method of claim 1 , wherein said terminal preference data indicates preference of direct or indirect downlink transmission associated with one or more of system information, paging, and downlink data.
3. The method of claim 1 , wherein transmission of the service request is triggered by the terminal preparing to send data.
4. The method of claim 1 , wherein transmission of the service request is triggered by receiving downlink paging from the network.
5. The method of claim 1 , wherein said terminal preference data is transmitted in a Non Access Stratum procedure.
6. The method of claim 1 , wherein said terminal preference data is transmitted in radio control signaling.
7. The method of claim 1 , comprising
transmitting an in-coverage indicator to the network, indicating whether the terminal is in or out of downlink coverage dependent on signal quality detected from said network node.
8. A method carried out in a radio network including a network node for setting up a connection with a terminal, the method comprising:
receiving terminal preference data in an uplink from the terminal, said terminal preference data indicating a preference of the terminal to receive one of direct or indirect downlink transmission when the terminal operates or intends to operate over a relay;
receiving a service request from the terminal over the relay;
transmitting information to the terminal, the transmitted information indicating a selection of a one of the direct or indirect downlink data transmission of the data connection; and
transmitting resource data for a connection with the radio network configured according to said transmitted information.
9. The method of claim 8 , wherein said terminal preference data indicates preference of direct or indirect downlink transmission associated with one or more of system information, paging, and downlink data.
10. The method of claim 8 , wherein said service request is triggered by the terminal preparing to send data.
11. The method of claim 8 , comprising
transmitting a paging message to the terminal from the network node responsive to receiving a paging request from a core network, wherein said service request is triggered by said paging message.
12. The method of claim 11 , comprising
transmitting said paging message in accordance with said terminal preference data.
13. The method of claim 8 , wherein said terminal preference data is received in a Non Access stratum procedure by the terminal.
14. The method of claim 8 , wherein said terminal preference data is received from the terminal in radio control signaling.
15. The method of claim 8 , wherein said information is determined based on at least radio traffic data detected in the network node, with said terminal preference data as preference.
16. The method of claim 8 , comprising
receiving an in-coverage indicator from the terminal, associated with signal quality detected from said network node by the terminal.
17. The method of claim 16 , wherein said in-coverage indicator is received in a terminal-initiated service request procedure.
18. The method of claim 16 , wherein said information indicates indirect downlink data transmission responsive to said in-coverage indicator indicating that the terminal is out of coverage from the network node.
19. A method for bearer modification for a terminal in connected mode communication with a network node of a wireless communication network, wherein the terminal is configured with an indirect uplink connection via a relay and a direct downlink connection from the network node, the method comprising:
measuring signal quality of downlink data from the network node in the terminal;
transmitting a signal quality measurement to the network node;
transmitting an in-coverage indicator, indicating out of coverage, based on the detected signal quality; and
receiving bearer modification data of an indirect downlink connection from the network node, responsive to transmitting said in-coverage indicator.