Apparatus and methods for relay-assisted uplink communication
First Claim
1. A terminal device arranged to communication with a base station via a relay device in a wireless communication system, the terminal device comprising:
- a transmitter arranged to transmit an access request message wherein the access request message comprises one from a set of access preambles that indicate relay device uplink assistance is requested;
a receiver arranged to receive an access request grant response from the base station; and
a control processor operably coupled to the transmitter and receiver and arranged to;
process the access request grant response and determine from a timing advance part thereof transmit power control (TPC) information for transmitting to the base station via the relay device.
4 Assignments
0 Petitions
Accused Products
Abstract
A terminal device is arranged to communicate with a base station via a relay device in a wireless communications system. The terminal device comprises: a transmitter arranged to transmit an access request message to the base station, wherein the access request message comprises one from a set of access preambles that indicate relay device uplink assistance is required; a receiver arranged to receive an access request grant response from the base station; and a control processor operably coupled to the transmitter and receiver and arranged to: process the access request grant response and determine from a timing advance part thereof transmit power control (TPC) information for transmitting to the base station via the relay device.
15 Citations
20 Claims
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1. A terminal device arranged to communication with a base station via a relay device in a wireless communication system, the terminal device comprising:
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a transmitter arranged to transmit an access request message wherein the access request message comprises one from a set of access preambles that indicate relay device uplink assistance is requested; a receiver arranged to receive an access request grant response from the base station; and a control processor operably coupled to the transmitter and receiver and arranged to; process the access request grant response and determine from a timing advance part thereof transmit power control (TPC) information for transmitting to the base station via the relay device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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, wherein the access request message comprises one from a set of access preambles that indicate relay device uplink assistance is required; receive an access request grant response from the base station; process the access request grant response and determine from a timing advance part thereof transmit power control (TPC) information for transmitting to the base station via the relay device.
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11. 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, wherein the access request message comprises one from a set of access preambles that indicate relay device uplink assistance is required; receiving an access request grant response from the base station; processing the access request grant response and determine from a timing advance part thereof transmit power control (TPC) information for transmitting to the base station via the relay device. - View Dependent Claims (12)
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13. 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, wherein the at least one terminal device comprises; a transmitter arranged to transmit an access request message, wherein the access request message comprises one from a set of access preambles that indicate relay device uplink assistance is required; a receiver arranged to receive an access request grant response from the base station; and a control processor operably coupled to the transmitter and receiver and arranged to; process the access request grant response and determine from a timing advance part thereof transmit power control (TPC) information for transmitting to the base station via the relay device.
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14. A base station arranged to communicate with a terminal device on an uplink channel via a relay device in a wireless communications system, the base station comprising:
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a receiver arranged to receive an access request message from the terminal device; and a control processor operably coupled to the receiver and arranged to; process the access request message; extract a relayed control element that indicates relay device uplink assistance was used wherein the relayed control element comprises a power delta from the relay device; and construct an access request grant response message wherein the access request grant response comprises a larger field for power control and a comparable smaller field for timing advance information for use in relayed communications as compared to corresponding size of fields for use in non-relayed communications; and transmit the access request grant response to the terminal device. - View Dependent Claims (15, 16, 17)
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18. An integrated circuit for a base station arranged to communicate with a terminal device on an uplink channel via a relay device in a wireless communications system, the integrated circuit comprising:
a control processor arranged to; receive an access request message from the terminal device; process the access request message and extract a relayed control element that indicates relay device uplink assistance was used wherein the relayed control element comprises a power delta from the relay device; construct an access request grant response message wherein the access request grant response comprises a larger field for power control and a comparable smaller field for timing advance information for use in relayed communications as compared to corresponding size of fields for use in non-relayed communications; and transmit the access request grant response to the terminal device.
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19. A method for a base station arranged to communicate with a terminal device on an uplink channel via a relay device in a wireless communications system, the method comprising:
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receiving an access request message from the terminal device; processing the access request message and extract a relayed control element that indicates relay device uplink assistance was used wherein the relayed control element comprises a power delta from the relay device; constructing an access request grant response message wherein the access request grant response comprises a larger field for power control and a comparable smaller field for timing advance information for use in relayed communications as compared to corresponding size of fields for use in non-relayed communications; and transmitting the access request grant response to the terminal device. - View Dependent Claims (20)
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Specification