Method for controlling transmission, network device, and terminal

Patent metadata

Field	Value
Publication number	US-9838914-B2
Application number	US-201414562515-A
Country	US
Kind code	B2
Filing date	Dec 5, 2014
Priority date	Jun 8, 2012
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

Embodiments of this application relate to a method for controlling transmission, a network device, and a terminal. The method includes: determining, by a first radio access network device according to a service transmission condition of a terminal in a first single-mode wireless communications system, that a multimode wireless communications system comprises at least two wireless communications systems transmits a service for the terminal; and sending, by the first radio access network device, first control information to the terminal, where the first control information includes link information of the at least two wireless communications systems, so that the terminal switches a service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system according to the link information of the at least two wireless communications systems. In this way, resource utilization of a wireless communications network is improved.

First claim

What is claimed is:

1. A method for controlling transmission, the method comprising:
determining, by a first radio access network device according to a service transmission condition of a terminal in a first single-mode wireless communications system, that a multimode wireless communications system comprising at least two wireless communications systems transmits a service for the terminal; and
sending, by the first radio access network device, first control information to the terminal, wherein the first control information comprises link information of the at least two wireless communications systems, so that the terminal switches a service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system according to the link information of the at least two wireless communications systems;
wherein a determination as to which wireless communications systems are the at least two wireless communications systems is determined by the first radio access network device according to a data volume of the service of the terminal, a link quality of each wireless communications system, a type of a service that can be carried by each wireless communications system, a capability of each wireless communications system carrying a service, and a cache idle rate of each wireless communications system.

2. The method according to claim 1 , wherein the service transmission condition of the terminal in the first single-mode wireless communications system comprises one or more of the following: a data volume of a service of the terminal transmitted in the first single-mode wireless communications system, link quality of the first single-mode wireless communications system, and a cache idle rate of the first single-mode wireless communications system.

3. The method according to claim 1 , wherein sending, by the first radio access network device, the first control information to the terminal comprises:
sending, by the first radio access network device, the first control information to the terminal over a first basic link, wherein the first basic link is a link established in the first single-mode wireless communications system by the terminal.

4. The method according to claim 1 , further comprising:
determining, by a second radio access network device according to a service transmission condition of the terminal in the multimode wireless communications system, that a second single-mode wireless communications system transmits a service for the terminal; and
sending, by the second radio access network device, second control information to the terminal, wherein the second control information comprises link information of the second single-mode wireless communications system, so that the terminal switches a service, which is transmitted in the multimode wireless communications system, to the second single-mode wireless communications system according to the link information of the second single-mode wireless communications system.

5. The method according to claim 4 , wherein the service transmission condition of the terminal in the multimode wireless communications system comprises one or more of the following: link quality of the at least two wireless communications systems comprised in the multimode wireless communications system, cache idle rates of the at least two wireless communications systems comprised in the multimode wireless communications system, and offloading thresholds of the at least two wireless communications systems comprised in the multimode wireless communications system, wherein the offloading threshold is set according to an attribute of the wireless communications system.

6. The method according to claim 4 , before determining that the second single-mode wireless communications system transmits the service for the terminal, the method further comprises:
receiving, by the second radio access network device, the link quality, reported by the terminal, of the at least two wireless communications systems comprised in the multimode wireless communications system.

7. The method according to claim 4 , wherein sending, by the second radio access network device, the second control information to the terminal comprises:
sending, by the second radio access network device, the second control information to the terminal over a second basic link, wherein the second basic link is a link established in any wireless communications system in the multimode wireless communications system by the terminal.

8. A method for controlling transmission, the method comprising:
receiving, by a terminal, first control information delivered by a first radio access network device, wherein the first control information comprises link information of at least two wireless communications systems; and
switching, by the terminal according to the link information of the at least two wireless communications systems, a service, which is transmitted in a first single-mode wireless communications system, to a multimode wireless communications system comprising the at least two wireless communications systems;
wherein a determination as to which wireless communications systems are the at least two wireless communications systems is determined by the first radio access network device according to a data volume of the service of the terminal, a link quality of each wireless communications system, a type of a service that can be carried by each wireless communications system, a capability of each wireless communications system carrying a service, and a cache idle rate of each wireless communications system.

9. The method according to claim 8 , wherein:
before receiving, by the terminal, the first control information delivered by the first radio access network device, the method further comprises:
establishing, by the terminal, a first basic link in the first single-mode wireless communications system; and

receiving, by the terminal, the first control information delivered by the first radio access network device comprises:
receiving, by the terminal over the first basic link, the first control information delivered by the first radio access network device.

10. The method according to claim 8 , wherein after switching the service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system comprising the at least two wireless communications systems, the method further comprises:
receiving, by the terminal, second control information delivered by a second radio access network device, wherein the second control information comprises link information of a second single-mode wireless communications system; and
switching, by the terminal, a service, which is transmitted in the multimode wireless communications system, to the second single-mode wireless communications system according to the link information of the second single-mode wireless communications system.

11. The method according to claim 8 , wherein after switching the service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system comprising the at least two wireless communications systems, the method further comprises:
measuring, by the terminal, link quality of the at least two wireless communications systems; and
reporting, by the terminal, the link quality of the at least two wireless communications systems to the second radio access network device.

12. The method according to claim 10 , wherein:
after switching the service, which is transmitted in the first single-mode wireless communications system, to the multimode wireless communications system comprisi

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Hantao
• Huang Min
• Chen Qin

Classifications

• H04W36/14

  Reselecting a network or an air interface · CPC title

• H04W36/0022 Primary

  for transferring data sessions between adjacent core network technologies · CPC title

• H04W36/22

  for handling the traffic · CPC title

• H04W88/06 Primary

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04W36/30

  by measured or perceived connection quality data · CPC title