Information transmission method, radio equipment controller, radio equipment, and base station

Patent metadata

Field	Value
Publication number	US-10419081-B2
Application number	US-201715606369-A
Country	US
Kind code	B2
Filing date	May 26, 2017
Priority date	Nov 28, 2014
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

Embodiments of the present invention provide an information transmission method, a radio equipment controller, a radio equipment, and a base station. The method includes determining, by an REC, that a main line used for communication with a first radio equipment RE is faulty and determining, by the REC, a standby line used for communication with the first RE. The method also includes communicating with the first RE by using the standby line.

First claim

What is claimed is:

1. A radio equipment controller (REC), comprising:
a processor; and
a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
send, through a power cable port or through a common public radio interface (CPRI) port, an addressing request message specific to a first radio equipment (RE);
receive at least one addressing response message from the first RE;
determine that a main line used by the REC to communicate with the first RE is faulty according to a path of an addressing response message sent by the first RE;
determine a standby line used by the REC to communicate with the first RE according to the path of the at least one addressing response message; and
communicate with the first RE using the standby line;

wherein the main line is a common public radio interface (CPRI) communications line, and wherein the standby line is a power cable line or a power cable plus CPRI communications line.

2. The REC according to claim 1 , wherein the instructions further comprise instructions to:
send, through a CPRI port or through a power cable port and a CPRI port, an addressing request message specific to controlled REs;
receive an addressing response message from at least one RE, wherein the at least one RE comprises the first RE;
determine that the main line used for communication with the first RE is faulty, in response to a path of at least one addressing response message from the first RE not comprising the main line; and
determine, according to the path of the at least one addressing response message, the standby line used for communication with the first RE, in response to the path of the at least one addressing response message from the first RE not comprising the main line.

3. The REC according to claim 2 , wherein the instructions further comprise instructions to:
send, through the CPRI port and the power cable port, the addressing request message specific to the controlled REs, in response to an RE that belongs to a same power cable network as the REC exists in the controlled REs; and
send, through the CPRI port or through the CPRI port and the power cable port, the addressing request message specific to the controlled REs, in response to an RE that belongs to a same power cable network as the REC does not exist in the controlled REs.

4. The REC according to claim 2 , wherein the instructions further comprise instructions to:
determine that a path of an addressing response message received from the first RE is the standby line used for communication with the first RE.

5. The REC according to claim 1 , wherein the instructions further comprise instructions to:
send, through the power cable port or through the CPRI port and the power cable port, the addressing request message specific to the first RE, in response to the REC and the first RE belonging to a same power cable network; and
send, through the CPRI port or through the CPRI port and the power cable port, the addressing request message specific to the first RE, in response to the REC and the first RE not belonging to a same power cable network.

6. A radio equipment (RE), comprising:
a processor; and
a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
receive, through a first port, an addressing request message sent by a radio equipment controller (REC), wherein the first port is an uplink common public radio interface (CPRI) port or a power cable port;
determine, according to the addressing request message, that an object that the addressing request message is specific to comprises the RE;
send a first addressing response message to the REC through the first port and with a path indicating whether a main line of the RE is faulty; and
determine, according to the addressing request message, that the object that the addressing request message is specific to further comprises another RE; and
forward, through a downlink CPRI port and a power cable port, the addressing request message, in response to the first port being the CPRI port and further in response to determining, according to the addressing request message, that the object to which the addressing request message is specific further comprises another RE.

7. The RE according to claim 6 , wherein the instructions further comprise instructions to:
add information about a forwarding path at the RE to the addressing request message before forwarding the addressing request message;
receive, through the downlink CPRI port or through the power cable port, a second addressing response message, after forwarding the addressing request message, wherein the second addressing response message carries a message of the forwarding path at the RE; and
forward the second addressing response message according to the information about the forwarding path at the RE.

8. The RE according to claim 6 , wherein the instructions further comprise instructions to:
receive, through the downlink CPRI port or the power cable port, a second addressing response message; and
forward, through an uplink CPRI port, the second addressing response message.

9. The RE according to claim 6 , wherein the addressing request message carries information about a forwarding path from the REC to the RE, and wherein the instructions further comprise instructions to:
add, to the first addressing response message, the information about the forwarding path from the REC to the RE, so the first addressing response message is returned to the REC according to a reverse path of the addressing request message, before sending the first addressing response message to the REC.

10. A method, comprising:
sending, through a power cable port or through a common public radio interface (CPRI) port, an addressing request message specific to a first radio equipment (RE);
receive at least one addressing response message from the first RE;
determining, by a radio equipment controller (REC), that a main line used for communication with the first RE is faulty according to a path of an addressing response message sent by the first RE;
determining, by the REC, a standby line used for communication with the first RE according to the path of the at least one addressing response message; and
communicating, by the REC with the first RE, using the standby line; and
wherein the main line is a common public radio interface (CPRI) communications line, and wherein the standby line is a power cable line or a power cable plus CPRI communications line.

11. The method according to claim 10 , wherein determining that the main line used for communication with the first RE is faulty comprises:
sending, by the REC, an addressing request message specific to controlled REs through a CPRI port or through a power cable port and a CPRI port;
receiving, by the REC, an addressing response message from at least one RE, wherein the at least one RE comprises the first RE; and
determining, by the REC, that the main line used for communication with the first RE is faulty, in response to a path of at least one addressing response message from the first RE not comprising the main line; and
wherein determining that the standby line used for communication with the first RE comprises determining, by the REC according to the path of the at least one addressing response message, the standby line used for communication with the first RE, in response to the path of the at least one addressing response message from the first RE not comprising the main line.

12. The method according to claim 11 , wherein sending the addressing request messag

Assignees

• Huawei Tech Co Ltd

Inventors

• Dong Ping

Classifications

• H04W88/085

  Access point devices with remote components · CPC title

• H04W92/12

  between access points and access point controllers · CPC title

• H04W24/04 Primary

  Arrangements for maintaining operational condition · CPC title

• H04Q3/0075

  Fault management techniques · CPC title

• H04W88/08

  Access point devices · CPC title