Method, apparatus and system for transmitting gateway address

• US 9,609,578 B2
• Filed: 12/31/2012
• Issued: 03/28/2017
• Est. Priority Date: 03/08/2012
• Status: Active Grant

• Current Assignee: Datang Mobile Communications Equipment Company Limited (China Information Communication Technology Group Co. Ltd.)
• Original Assignee: China Academy of Telecom Technology (China Information Communication Technology Group Co. Ltd.)
• Inventors: Yang, Yi
• Primary Examiner(s): Lee, Andrew
• Application Number:
  US14/383,641
• Publication Number:
  US 20150049747A1
• Time in Patent Office: 1,548 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

This application relates to wireless communication technologies, and more particularly, to a method, a apparatus and a system for transmitting a gateway address, which are used to solve the problem in the prior art that a DeNB is incapable of assisting an MME in selecting an SGW/PGW for a mobile relay node (RN). The method for transmitting a gateway address in an embodiment of this application comprises: a base station determining, when determining an access device to be a mobile RN, a gateway IP address of a mobility anchor serving as a gateway of the mobile RN; and sending the determined gateway IP address to a mobility management entity (MME) corresponding to the mobile RN. In the embodiment of this application, the DeNB is capable of assisting the MME in selecting a suitable mobility anchor for the mobile RN as the SGW/PGW, thereby guaranteeing normal work of the mobile RN.

Claims

1. A method for transmitting a gateway address, wherein the method comprises:

determining, by an eNB, a gateway IP address of a mobility anchor which serves as a gateway of a mobile Relay Node, RN, upon determining an accessing device to be the mobile RN; and

transmitting, by the eNB, the determined gateway IP address to a Mobility Management Entity, MME, serving for the mobile RN,

wherein before determining the gateway IP address of the mobility anchor, the method further comprises;

transmitting, by the eNB, an Interface Setup Request messages comprising identification information indicating that the eNB is a donor eNB.

2. The method according to claim 1, wherein if there are more than one mobility anchors, then before the eNB determines the gateway IP address of the mobility anchor, the method further comprises:

selecting, by the eNB, one of the mobility anchors as the gateway of the mobile RN according to a requirement of load balancing;

or

selecting one of the mobility anchors as the gateway of the mobile RN dependent upon capacity of each mobility anchor;

or

selecting randomly one of the mobility anchors as the gateway of the mobile RN.

3. The method according to claim 1, wherein the gateway IP address determined by the eNB is one of:

an IP address of an S1 interface of the mobility anchor; and

an IP address of an X2 interface of the mobility anchor.

4. The method according to claim 3, wherein if the S1 interface is set up between the eNB and the mobility anchor, then before the S1 interface is set up, the method further comprises:

the eNB indicating that the eNB is a donor eNB in all of transmitted S1 Interface Setup Request messages, or the eNB indicating that the eNB is a donor eNB in an S1 Interface Setup Request message transmitted to the mobility anchor;

or

if the X2 interface is set up between the eNB and the mobility anchor, then before the X2 interface is set up, the method further comprises;

the eNB indicating that the eNB is a donor eNB in all of transmitted X2 Interface Setup Request messages, or the eNB indicating that the eNB is a donor eNB in an X2 Interface Setup Request message transmitted to the mobility anchor.

5. The method according to claim 1, wherein the eNB determines the accessing device to be a stationary RN or a mobile RN in a way that:

the eNB determines the accessing device to be a stationary RN or a mobile RN according to indication information received from the accessing device.

6. The method according to claim 5, wherein after the eNB receives the indication information from the accessing device, the method further comprises:

transmitting, by the eNB, the indication information to the MME serving for the mobile RN to indicate to the MME that the accessing device is a mobile RN.

7. The method according to claim 5, wherein the eNB receives the indication information from a Radio Resource Control, RRC, message.

8. The method according to claim 2, wherein the eNB determines the accessing device to be a stationary RN or a mobile RN in a way that:

the eNB determines the accessing device to be a stationary RN or a mobile RN according to indication information received from the accessing device.

9. The method according to claim 3, wherein the eNB determines the accessing device to be a stationary RN or a mobile RN in a way that:

the eNB determines the accessing device to be a stationary RN or a mobile RN according to indication information received from the accessing device.

10. The method according to claim 4, wherein the eNB determines the accessing device to be a stationary RN or a mobile RN in a way that:

the eNB determines the accessing device to be a stationary RN or a mobile RN according to indication information received from the accessing device.

11. A method for transmitting an own gateway address, wherein the method comprises:

receiving, by a mobility anchor, an Interface Setup Request message from an eNB; and

transmitting, by the mobility anchor, its gateway IP address to the eNB,

wherein before the mobility anchor transmits its gateway IP address to the eNB, the method further comprises;

determining, by the mobility anchor, that the Interface Setup Request message comprises identification information indicating that the eNB is a donor eNB.