Apparatus and Methods for Relay-Assisted Uplink Communication
First Claim
1. A terminal device arranged to communicate with a base station via a relay device in a wireless communications system, the terminal device comprising:
- a transmitter arranged to transmit an access request message to the base station;
a receiver arranged to receive an access request grant response from the base station; and
a control processor operably coupled to the receiver and arranged to;
process the access request grant response;
extract transmit power control information therefrom for transmissions to the relay device;
generate and transmit a message-3 transmission at a first power level based on the transmit power control information;
transmit subsequently a message to the relay device at a power level based on the first power level of the message-3 transmission on at least one physical uplink channel message.
4 Assignments
0 Petitions
Accused Products
Abstract
A relay device for supporting communications between a terminal device and a base station in a wireless communications system is described. The relay device comprises a transceiver arranged to at least receive an access request message from the terminal device; and a control processor operably coupled to the transceiver and arranged to process the access request message, extract information and determine therefrom a power delta value that is not based on a determination of pathloss between the relay device and the terminal device, generate a control element comprising the power delta value; and for relaying at least the control element to the base station. The control processor is further arranged to receive subsequently at least one physical uplink channel message from the terminal device wherein a transmit power level of the at least one physical uplink channel message is based at least on the power delta value.
14 Citations
18 Claims
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1. A terminal device arranged to communicate with a base station via a relay device in a wireless communications system, the terminal device comprising:
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a transmitter arranged to transmit an access request message to the base station; a receiver arranged to receive an access request grant response from the base station; and a control processor operably coupled to the receiver and arranged to; process the access request grant response; extract transmit power control information therefrom for transmissions to the relay device; generate and transmit a message-3 transmission at a first power level based on the transmit power control information; transmit subsequently a message to the relay device at a power level based on the first power level of the message-3 transmission on at least one physical uplink channel message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An integrated circuit for a terminal device arranged to communicate with a base station via a relay device in a wireless communications system, the integrated circuit comprising:
a control processor arranged to; transmit an access request message to the base station; receive an access request grant response from the base station; process the access request grant response and extract therefrom transmit power control information for transmissions to the relay device; generate and transmit a message-3 transmission at a first power level based on the transmit power control information; transmit subsequently a message to the relay device at a power level based on the first power level of the message-3 transmission on at least one physical uplink channel message.
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12. A method for a terminal device arranged to communicate with a base station via a relay device in a wireless communications system, the method comprising:
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transmitting an access request message to the base station; receiving an access request grant response from the base station; processing the access request grant response and extract therefrom transmit power control information for transmissions to the relay device; generating and transmit a message-3 transmission at a first power level based on the transmit power control information; and transmitting subsequently a message to the relay device at a power level based on the first power level of the message-3 transmission on at least one physical uplink channel message.
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13. A non-transitory computer program product comprising executable program code to wirelessly communicate data from a terminal device to a base station via a relay device, the executable program code operable for, when executed at the terminal device, performing the method of claim 13.
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14. A wireless communication system comprising:
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at least one terminal device; at least one base station; and at least one relay device for supporting communications between the at least one terminal device and the at least one base station, the at least one terminal device comprising; a transmitter arranged to transmit an access request message to the base station; a receiver arranged to receive an access request grant response from the base station; and a control processor operably coupled to the receiver and arranged to; process the access request grant response; extract transmit power control information therefrom for transmissions to the relay device; generate and transmit a message-3 transmission at a first power level based on the transmit power control information; and transmit subsequently a message to the relay device at a power level based on the first power level of the message-3 transmission on at least one physical uplink channel message.
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15. A relay device for supporting communications between a terminal device and a base station in a wireless communications system, the relay device comprising:
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a transceiver; and a control processor operably coupled to the transceiver and arranged to; process a received access request message from the terminal device; extract information and determine therefrom a power delta value that is not based on a determination of pathloss between the relay device and the terminal device; generate a control element comprising the power delta value; and relay at least the control element to the base station; receive subsequently a message-3 transmission from the terminal device at a received power level based on the relayed control element; receive subsequently a message from the terminal device on at least one physical uplink channel message from the terminal device wherein a transmit power level of the at least one physical uplink channel is at substantially the same power as the received message-3 transmission.
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16. An integrated circuit for a relay device supporting communications between a terminal device and a base station in a wireless communications system, the integrated circuit:
a control processor arranged to; process a received access request message from the terminal device; extract information and determine therefrom a power delta value that is not based on a determination of pathloss between the relay device and the terminal device; generate a control element comprising the power delta value; and relay at least the control element to the base station; receive subsequently a message-3 transmission from the terminal device at a received power level based on the relayed control element; receive subsequently a message from the terminal device on at least one physical uplink channel message from the terminal device wherein a transmit power level of the at least one physical uplink channel is at substantially the same power as the received message-3 transmission.
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17. A method of wirelessly communicating data from a terminal device to a base station via a relay device, the method comprising, at the relay device:
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receiving an access request message from the terminal device; processing a received access request message from the terminal device; extracting information and determine therefrom a power delta value that is not based on a determination of pathloss between the relay device and the terminal device; generating a control element comprising the power delta value; and relaying at least the control element to the base station; receiving subsequently a message-3 transmission from the terminal device at a received power level based on the relayed control element; receiving subsequently a message from the terminal device on at least one physical uplink channel message from the terminal device wherein a transmit power level of the at least one physical uplink channel is at substantially the same power as the received message-3 transmission. - View Dependent Claims (18)
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Specification