Granted Patent B2

US 12,245,079 · App. 17/644,236 · Granted Mar 4, 2025

Inventors: Sen Xu (Beijing, CN); Hongliang Bian (Beijing, CN); Le Zhang (Beijing, CN); Zhenqiang Sun (Beijing, CN)

Assignee: CHINA TELECOM CORPORATION LIMITED

H04W28/0861H04B17/309H04W28/12H04W48/08H04W92/16

Abstract

Claims (49)

1. A method for transmitting an inter-system measurement information, comprising:

determining, by a first base station, whether an interface for direct communication exists between the first base station and a second base station according to a pre-configuration information;

determining, by the first base station, a corresponding core network and an interface between the first base station and the corresponding core network according to its own configuration and a type of the second base station under a condition that the interface for the direct communication does not exist between the first base station and the second base station;

sending, by the first base station, a first measurement configuration information to a control plane entity of a first core network through an interface between the first base station and the first core network under a condition that the corresponding core network is the first core network corresponding to the first base station;

sending, by the control plane entity of the first core network, the first measurement configuration information to a control plane entity of a second core network through a first inter core network interaction information by using an interface between the first core network and the second core network corresponding to the second base station, wherein the second base station is registered in the control plane entity of the second core network but not registered in the control plane entity of the first core network;

sending, by the control plane entity of the second core network, the first measurement configuration information to the second base station by using an interface between the second base station and the second core network;

determining, by the second base station, an inter-system measurement configuration information of a terminal in a coverage of the second base station for the first base station according to the first measurement configuration information;

generating, by the second base station, a second measurement configuration information by using interactive request information sent by the first base station;

sending, by the second base station, the second measurement configuration information to the control plane entity of the second core network by using the interface between the second base station and the second core network;

determining, by the control plane entity of the second core network, whether the first base station is registered in the control plane entity of the second core network;

sending, by the control plane entity of the second core network, the second measurement configuration information to the first base station through an interface between the first base station and the second core network under a condition that the first base station is registered in the control plane entity of the second core network; and

determining, by the first base station, an inter-system measurement configuration information of a terminal in the coverage of the first base station for the second base station according to the second measurement configuration information.

2. The method according to claim 1 , further comprising:

sending, by the first base station, the first measurement configuration information to the control plane entity of the second core network through an interface between the first base station and the second core network under a condition that the corresponding core network is the second core network; and

sending, by the control plane entity of the second core network, the first measurement configuration information to the second base station by using the interface between the second base station and the second core network.

3. The method according to claim 2 , wherein the determining, by the first base station, whether the direct communication interface exists between the first base station and the second base station according to the pre-configuration information further comprises:

determining, by the first base station, that the interface for the direct communication does not exist between the first base station and the second base station under a condition that the first base station and the second base station are not set to prohibit from using a predetermined interface, a wireless type of the second base station is a new radio (NR) and the second base station adopts an standalone (SA) mode, a wireless type of the first base station is long term evolution (LTE) and the first base station is only connected to an evolved core network (EPC); and

determining, by the first base station, that the interface for the direct communication does not exist between the first base station and the second base station under a condition that the first base station and the second base station are not set to prohibit from using the predetermined interface, the wireless type of the second base station is the LTE, a tracking area code (TAC) of the second base station has a preset format, the wireless type of the first base station is the NR and the first base station adopts the SA mode.

4. The method according to claim 1 , wherein the determining, by the first base station, the corresponding core network and the interface between the first base station and the corresponding core network according to its own configuration comprises:

taking, by the first base station, the first core network as the corresponding core network and taking an S1 interface as the interface between the first base station and the first core network under a condition that a wireless type of the first base station is LTE and the first base station is only connected to the first core network, wherein the first core network is an evolved core network (EPC);

taking, by the first base station, the second core network as the corresponding core network and taking an NG interface as the interface between the first base station and the second core network under a condition that the wireless type of the first base station is LTE and the first base station is connected to the first core network and the second core network respectively, wherein the first core network is the EPC and the second core network is a 5GC network;

taking, by the first base station, the second core network as the corresponding core network and taking the NG interface as the interface between the first base station and the second core network under a condition that the wireless type of the first base station is LTE and the first base station is connected to the first core network and the second core network respectively, wherein the first core network is the EPC and the second core network is the 5GC network; and

taking, by the first base station, the first core network as the corresponding core network, wherein the first core network is the 5GC network, and taking an NG interface as an interface between the first base station and the first core network under a condition that the wireless type of the first base station is NR.

5. The method according to claim 1 , further comprising:

sending, by the control plane entity of the second core network, the second measurement configuration information to the control plane entity of the first core network through a second core network interaction information by using the interface between the first core network and the second core network under a condition that the first base station is not registered in the control plane entity of the second core network, wherein the first base station is registered in the control plane entity of the first core network; and

sending, by the control plane entity of the first core network, the second measurement configuration information to the first base station by using the interface between the first base station and the first core network.

6. The method according to claim 1 , wherein the determining, by the first base station, whether the interface for direct communication exists between the first base station and the second base station according to the pre-configuration information comprises:

determining, by the first base station, whether the first base station and the second base station belong to different wireless types according to the pre-configuration information;

determining, by the first base station, whether the first base station and the second base station are both set to prohibit from using a predetermined interface under a condition that the first base station and the second base station belong to different wireless types; and

determining, by the first base station, the interface for direct communication does not exist between the first base station and the second base station under a condition that the first base station and the second base station are both set to prohibit from using the predetermined interface.

7. A system for transmitting an inter-system measurement information, comprising:

a first base station, configured to determine whether an interface for direct communication exists between the first base station and a second base station according to a pre-configuration information, determine a corresponding core network and an interface between the first base station and the corresponding core network according to its own configuration and a type of the second base station under a condition that the interface for direct communication does not exist between the first base station and the second base station, and send a first measurement configuration information to a control plane entity of a first core network through an interface between the first base station and the first core network under a condition that the corresponding core network is the first core network corresponding to the first base station, and determine an inter-system measurement configuration information of a terminal in a coverage of the first base station for the second base station according to a second measurement configuration information generated by the second base station,

a control plane entity of the first core network, configured to send the first measurement configuration information to a control plane entity of a second core network through a first inter core network interaction information by using an interface between the first core network and the second core network corresponding to the second base station, wherein the second base station is registered in the control plane entity of the second core network but not registered in the control plane entity of the first core network;

the control plane entity of the second core network, configured to send the first measurement configuration information to the second base station by using an interface between the second base station and the second core network, determine whether the first base station is registered in the control plane entity of the second core network under a condition that the second measurement configuration information is received, and send the second measurement configuration information to the first base station through an interface between the first base station and the second core network under a condition that the first base station is registered in the control plane entity of the second core network; and

the second base station, configured to determine an inter-system measurement configuration information of a terminal in a coverage of the second base station for the first base station according to the first measurement configuration information, generate the second measurement configuration information by using interactive request information sent by the first base station, and send the second measurement configuration information to the control plane entity of the second core network by using the interface between the second base station and the second core network.

8. The system according to claim 7 , wherein:

the first base station is further configured to send the first measurement configuration information to the control plane entity of the second core network through an interface between the first base station and the second core network under a condition that the corresponding core network is the second core network; and

the control plane entity of the second core network is further configured to send the first measurement configuration information to the second base station by using the interface between the second base station and the second core network.

9. The system according to claim 8 , wherein

the first base station is further configured to determine the interface for the direct communication does not exist between the first base station and the second base station under a condition that the first base station and the second base station are not set to prohibit from using a predetermined interface, a wireless type of the second base station is a new radio (NR) and the second base station adopts an standalone (SA) mode, a wireless type of the first base station is long term evolution (LTE) and the first base station is only connected to an evolved core network (EPC), and determine the interface for direct communication does not exist between the first base station and the second base station under a condition that the first base station and the second base station are not set to prohibit from using the predetermined interface, the wireless type of the second base station is the LTE, a tracking area code (TAC) of the second base station has a preset format, the wireless type of the first base station is the NR and the first base station adopts the SA mode.

10. The system of claim 7 , wherein:

the first base station is configured to take the first core network as the corresponding core network and taking an S1 interface as the interface between the first base station and the first core network under a condition that a wireless type of the first base station is LTE and the first base station is only connected to the first core network, wherein the first core network is an evolved core network (EPC);

the first base station is further configured to take the second core network as the corresponding core network and taking an NG interface as an interface between the first base station and the second core network under a condition that the wireless type of the first base station is LTE and the first base station is only connected with the second core network, wherein the second core network is a 5GC network;

the first base station is further configured to take the second core network as the corresponding core network and taking the NG interface as the interface between the first base station and the second core network under a condition that the wireless type of the first base station is LTE and the first base station is connected to the first core network and the second core network respectively, wherein the first core network is the EPC and the second core network is the 5GC network; and

the first base station is configured to take the first core network as the corresponding core network, wherein the first core network is the 5GC network, and taking the NG interface as the interface between the first base station and the first core network under a condition that the wireless type of the first base station is NR.

11. The system according to claim 7 , wherein:

the control plane entity of the second core network is configured to send the second measurement configuration information to the control plane entity of the first core network through a second core network interaction information by using the interface between the first core network and the second core network under a condition that the first base station is not registered in the control plane entity of the second core network, wherein the first base station is registered in the control plane entity of the first core network; and

a control plane entity of the first core network is configured to send the second measurement configuration information to the first base station by using the interface between the first base station and the first core network.

12. The system according to claim 7 , wherein the first base station is configured to determine whether the first base station and the second base station belong to different wireless types according to the pre-configuration information, determine whether the first base station and the second base station are both set to prohibit from using a predetermined interface under a condition that the first base station and the second base station belong to different wireless types, and determine the interface for direct communication does not exist between the first base station and the second base station under a condition that the first base station and the second base station are both set to prohibit from using the predetermined interface.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (38)