Handover method and system based on cognitive technology

Patent metadata

Field	Value
Publication number	US-9503938-B2
Application number	US-201013698134-A
Country	US
Kind code	B2
Filing date	Oct 22, 2010
Priority date	May 17, 2010
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

The disclosure discloses a handover method based on a cognitive technology. At least two working areas such as a Primary Working Area (PWA) and a Secondary Working Area (SWA), a RRM and a HOC are configured both in User Equipment (UE) and in a Base Station (BS); after receiving a handover request, according to the current radio environments, the PWA of the BS makes a handover negotiation with the neighboring BSs or with the neighboring BSs and the UE requesting handover, determines the communication parameters satisfying the handover request, and sends the determined communication parameters to the SWA of the BS and the SWA of the UE; the SWA of the BS and the SWA of the UE configure said communication parameters and notify the RRM of the BS after the configuration is finished; the RRM of the BS instructs the HOC of the BS and the HOC of the UE to activate the respective SWAs, and to perform the handover according to the communication parameters configured by the SWA. The disclosure also discloses a handover system based on the cognitive technology. The disclosure improves the resource utilization ratio and the quality of service in the current communication system.

First claim

What is claimed is:

1. A handover method based on a cognitive technology, wherein at least two working areas including a primary working area and a secondary working area, a Radio Resource Management (RRM) and a Handover Controller (HOC) are both configured in a user equipment and in a base station, and the method comprises:
after receiving a handover request, according to radio environments, the primary working area of the base station making a handover negotiation with a neighboring base station or with a neighboring base station and the user equipment requesting handover, determining a Radio Access Technology (RAT) and communication parameters satisfying the handover request according to sensed and unused spectrum resource, and
sending the determined communication parameters and communication software corresponding to the RAT to the secondary working area of the base station and the secondary working area of the user equipment;
the secondary working area of the base station and the secondary working area of the user equipment installing the communication software corresponding to the RAT and configuring the communication parameters, and notifying the RRM of the BS after the configuration is finished; and
instructing the HOC of the base station and the HOC of the user equipment by the RRM of the base station to activate the respective secondary working areas, and to perform a handover according to the communication parameters configured by the secondary working area.

2. The method according to claim 1 , wherein a resource database is further configured in the base station, the resource database is configured to store unused spectrum resource obtained by statistic, and radio communication technology (RAT) parameters corresponding to the unused spectrum resource; the base station obtains the unused spectrum resource from a neighboring base station and itself; there is at least one of the following data further maintained in the resource database: use equipment information, unused spectrum strategy, load situations of respective carriers, quality of service and fee standard.

3. The method according to claim 2 , further comprising:
making a handover negotiation by the primary working area of the base station based on quality of service of requested service, current load situation, interference on other carrier frequencies caused by a carrier frequency allocated for performing the handover for the user equipment, fee, supported RAT and carrier frequency requirement of the user equipment; and
the primary working area of the base station determining carrier frequency information allocated for the user equipment and determining corresponding RAT and configured parameters for the user equipment.

4. The method according to claim 3 , wherein, after performing the handover according to the communication parameter configured by the secondary working area, the method further comprises:
stopping use of the primary working area of the user equipment;
or, maintaining a usage state of the primary working area of the user equipment.

5. The method according to claim 4 , wherein, when detecting that the user equipment is required to perform a handover, the RRM of the base station sends a handover request to the primary working area of the base station;
or, when the RRM of the user equipment detects that the user equipment is required to perform a handover, the RRM of the user equipment sends a handover request to the primary working area of the base station through the RRM of the base station.

6. The method according to claim 3 , wherein the method further comprises:
prestoring each RAT communication software by the user equipment;
when determining that the user equipment supports the RAT obtained after the handover, sending identification information of the RAT to the secondary working area of the user equipment by the primary working area of the base station; calling and installing a communication software corresponding to the RAT by the secondary working area of the user equipment according to the identification information of the RAT.

7. The method according to claim 6 , wherein, when detecting that the user equipment is required to perform a handover, the RRM of the base station sends a handover request to the primary working area of the base station;
or, when the RRM of the user equipment detects that the user equipment is required to perform a handover, the RRM of the user equipment sends a handover request to the primary working area of the base station through the RRM of the base station.

8. The method according to claim 3 , wherein, when detecting that the user equipment is required to perform a handover, the RRM of the base station sends a handover request to the primary working area of the base station;
or, when the RRM of the user equipment detects that the user equipment is required to perform a handover, the RRM of the user equipment sends a handover request to the primary working area of the base station through the RRM of the base station.

9. The method according to claim 2 , wherein, when detecting that the user equipment is required to perform a handover, the RRM of the base station sends a handover request to the primary working area of the base station;
or, when the RRM of the user equipment detects that the user equipment is required to perform a handover, the RRM of the user equipment sends a handover request to the primary working area of the base station through the RRM of the base station.

10. The method according to claim 1 , wherein, when detecting that the user equipment is required to perform a handover, the RRM of the base station sends a handover request to the primary working area of the base station;
or, when the RRM of the user equipment detects that the user equipment is required to perform a handover, the RRM of the user equipment sends a handover request to the primary working area of the base station through the RRM of the base station.

11. A handover system based on a cognitive technology, comprising:
a user equipment and a base station, wherein at least two working areas including a primary working area and a secondary working area, a Radio Resource Management (RRM) and Handover Controller (HOC) are configured both in the user equipment and in the base station, wherein;
the primary working area of the base station is configured, after receiving a handover request, to make a handover negotiation with a neighboring base station or with a neighboring base station and a user equipment requesting a handover according to current radio environments, to determine a Radio Access Technology (RAT) and communication parameters satisfying the handover request according to currently sensed and unused spectrum resource, and to send the determined communication parameters and communication software corresponding to the RAT, to the secondary working area of the base station and the secondary working area of the user equipment;
the secondary working area of the base station is configured to install the communication software corresponding to the RAT and configure the communication parameters, and notify the RRM of the base station after the configuration is finished;
the secondary working area of the user equipment is configured to configure the communication parameters and notify the RRM of the base station through the RRM of the user equipment after the configuration is finished;
the RRM of the base station is configured to instruct the HOC of the base station and the HOC of the user equipment to activate the respective secondary working areas, and perform the handover according to the communication parameters configured by the secondary working area.

12.

Assignees

• Wei Min
• Li Feng
• Zhao Nan
• Tian Kaibo
• Peng Aihua
• Guo Senbao
• Zte Corp

Inventors

• Wei Min
• Li Feng
• Zhao Nan
• Tian Kaibo
• Peng Aihua
• Guo Senbao

Classifications

• H04W36/0077

  of access information of target access point · CPC title

• H04W36/26

  by agreed or negotiated communication parameters · CPC title

• H04W36/0055 Primary

  Transmission or use of information for re-establishing the radio link · CPC title