Type II relay node initialization procedures
View Patent ↗A relay node including one or more components configured to encode a message to be transmitted to an access node, the message used to identify the relay node as a relay node during initialization of the relay node.
1. A relay node comprising:
one or more components configured to:
generate a Radio Resource Control (RRC) Connection Setup Complete message during initialization, the RRC Connection Setup Complete message implicitly identifying the relay node as a user equipment acting as a relay node based on a lack of content in the RRC Connection Setup Complete message; and
transmit the RRC Connection Setup Complete message to an access node.
2. The relay node of claim 1 , wherein the initialization is the Radio Resource Control (RRC) connection establishment phase of the relay node, wherein the lack of content in the RRC Connection Setup Complete message implicitly identifies the relay node to the access node.
3. The relay node of claim 1 , wherein the one or more components are further configured to allocate a preamble in a random access channel (RACH) message to be transmitted to the access node.
4. The relay node of claim 3 , wherein the allocated preamble is taken from a pool of predetermined preambles indicated by the access node.
5. The relay node of claim 1 , wherein the one or more components are further configured to omit setting a field in the RRC Connection Setup Complete message, wherein the unset field identifies the relay node as a user equipment.
6. A method implemented in a relay node, the method comprising:
generating a Radio Resource Control (RRC) Connection Setup Complete message upon initialization, the RRC Connection Setup Complete message implicitly identifying the relay node as a user equipment acting as a relay node based on a lack of content in the RRC Connection Setup Complete message; and
transmitting the RRC Connection Setup Complete message to an access node.
7. The method of claim 6 , wherein the initialization is the Radio Resource Control (RRC) connection establishment phase of the relay node, wherein the lack of content in the RRC Connection Setup Complete message implicitly identifies the relay node to the access node.
8. The method of claim 6 , further comprising transmitting a random access channel (RACH) message to the access node, and wherein a preamble is allocated in the RACH message in order to identify the relay node to the access node.
9. The method of claim 8 , wherein the allocated preamble is taken from a pool of predetermined preambles indicated by the access node.
10. The method of claim 6 , wherein generating the RRC Connection Setup Complete message comprises excluding information elements (lEs) from the RRC Connection Setup Complete message, wherein the excluded IEs identify the relay node as a user equipment.
11. A computer readable storage device storing a program which, when executed by a processor, implements a method implemented in a relay node, the method comprising:
generating an RRCConnectionSetupComplete message upon initialization, the RRCConnectionSetupComplete message implicitly identifying the relay node as a user equipment acting as a relay node based on a lack of content in the RRCConnectionSetupComplete message; and
transmitting the RRCConnectionSetupComplete message to an access node.
12. The computer readable storage device of claim 11 , wherein generating the RRCConnectionSetupComplete message further comprises excluding information elements (lEs) from the RRCConnectionSetupComplete message, wherein the excluded IEs identify the relay node as a user equipment.
13. The computer readable storage device of claim 11 , the method further comprising encoding a random access channel (RACH) message to be transmitted to the access node, and wherein a preamble is allocated in the RACH message in order to identify the relay node to the access node.
14. The computer readable storage device of claim 13 , wherein the allocated preamble is taken from a pool of predetermined preambles.
15. The computer readable storage device of claim 11 , wherein the initialization is the Radio Resource Control (RRC) connection establishment phase of the relay node, wherein the lack of content in the RRCConnectionSetupComplete message implicitly identifies the relay node to the access node.
16. An access device comprising:
one or more components configured to:
receive a Radio Resource Control (RRC) Connection Setup Complete message from a relay node during an initialization phase; and
identify the relay node as a user equipment acting as a relay node based on a lack of content in the RRC Connection Setup Complete message.
17. The access device of claim 16 , wherein the one or more components are further configured to determine that the relay node is the source of the RRC Connection Setup Complete message based on a lack of information elements (IEs) in the RRC Connection Setup Complete message.
18. The access device of claim 16 , wherein the initialization phase is the RRC connection establishment phase of the relay node.
19. The access device of claim 16 , wherein the access node is configured to receive a random access channel (RACH) message, and wherein the one or more components identify the relay node by decoding a preamble in the RACH message.
20. The access device of claim 19 , wherein the preamble is taken from a pool of predetermined preambles indicated by the access device.