METHOD, APPARATUS, AND TERMINAL FOR WIRELESS NETWORK CONNECTION

• US 20130116001A1
• Filed: 12/28/2012
• Published: 05/09/2013
• Est. Priority Date: 08/25/2010
• Status: Active Grant

• Current Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wang, Yanling
• Granted Patent: US 9,179,417 B2
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04W 52/228 using past power values or information
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 72/0473 the resource being transmission power

Abstract

The present invention relate to a method, an apparatus, and a terminal for wireless network connection. The method includes: acquiring lowest transmit power of a communication terminal that establishes connection with a wireless network access point, where the lowest transmit power is minimum transmit power that can ensure connection and communication between the communication terminal and the wireless network access point; and adjusting and determining transmit power of the communication terminal according to the lowest transmit power. With the implementation of the embodiments of the present invention, the communication terminal automatically reduces transmit power without affecting normal network connection, so that manual setting by users is avoided, electrical energy is saved, radiation is reduced, and convenient network access by users is ensured.

Claims

1. A method for wireless network connection, comprising:

acquiring a lowest transmit power of a communication terminal that establishes connection with a wireless network access point, wherein the lowest transmit power is minimum transmit power that ensures communication between the communication terminal and the wireless network access point; and

adjusting and determining transmit power of the communication terminal according to the lowest transmit power.

2. The method according to claim 1, wherein acquiring the lowest transmit power of the communication terminal that establishes the connection with the wireless network access point comprises one of the following:

after establishing the connection with the wireless network access point, acquiring actual received signal strength, a wireless network service type, and a modulation manner of the communication terminal, determining a threshold value of received signal strength of the communication terminal according to the wireless network service type and modulation manner, and determining the lowest transmit power of the communication terminal according to current transmit power of the communication terminal, the actual received signal strength of the communication terminal, and the threshold value of the received signal strength of the communication terminal;

and

after establishing the connection with the wireless network access point, acquiring a wireless network service type and a modulation manner, determining a threshold value of received signal strength of the wireless network access point according to the wireless network service type and modulation manner, and determining the lowest transmit power of the communication terminal according to current transmit power of the communication terminal, an air interface path transmission loss value, and the threshold value of the received signal strength of the wireless network access point.

3. The method according to claim 2, wherein acquiring the air interface path transmission loss value comprises one of the following:

acquiring the air interface path transmission loss value through a real-time measurement manner;

acquiring a preset air interface path transmission loss value;

and

acquiring communication environment information between the wireless network access point and the communication terminal, and determining a corresponding air interface path transmission loss value according to the communication environment information and preset air interface path transmission loss information corresponding to different communication environment information.

4. The method according to claim 1, wherein adjusting and determining the transmit power of the communication terminal according to the lowest transmit power comprises:

when the lowest transmit power is lower than the current transmit power of the communication terminal, reducing transmit power of the communication terminal according to a preset step length until the transmit power of the communication terminal is equal to the lowest transmit power or quality of a current data transmission service meets a preset requirement.

5. An apparatus for wireless network connection, comprising:

a lowest transmit power acquiring unit, configured to acquire a lowest transmit power of a communication terminal that establishes connection with a wireless network access point, wherein the lowest transmit power is minimum transmit power that ensures connection and communication between the communication terminal and the wireless network access point; and

a transmit power adjusting unit, configured to adjust and determine transmit power of the communication terminal according to the lowest transmit power.

6. The apparatus according to claim 5, wherein the lowest transmit power acquiring unit comprises one of the following:

a first lowest transmit power acquiring unit, configured to;

after the connection with the wireless network access point is established, acquire actual received signal strength, a wireless network service type, and a modulation manner of the communication terminal, determine a threshold value of received signal strength of the communication terminal according to the wireless network service type and modulation manner, and determine the lowest transmit power of the communication terminal according to current transmit power of the communication terminal, the actual received signal strength of the communication terminal, and the threshold value of the received signal strength of the communication terminal;

and

a second lowest transmit power acquiring unit, configured to;

after the connection with the wireless network access point is established, acquire a wireless network service type and a modulation manner, determine a threshold value of received signal strength of the wireless network access point according to the wireless network service type and modulation manner, and determine the lowest transmit power of the communication terminal according to current transmit power of the communication terminal, an air interface path transmission loss value, and the threshold value of the received signal strength of the wireless network access point.

7. The apparatus according to claim 6, wherein the second lowest transmit power acquiring unit comprises one of the following:

a first loss value acquiring unit, configured to acquire the air interface path transmission loss value through a real-time measurement manner;

a second loss value acquiring unit, configured to acquire a preset air interface path transmission loss value;

and

a third loss value acquiring unit, configured to acquire communication environment information between the wireless network access point and the communication terminal, and determine a corresponding air interface path transmission loss value according to the communication environment information and preset air interface path transmission loss information corresponding to different communication environment information.

8. The apparatus according to claim 5, wherein the transmit power adjusting unit comprises:

a transmit power determining unit, configured to compare the lowest transmit power acquired by the lowest transmit power acquiring unit with the current transmit power of the communication terminal; and

a transmit power reducing unit, configured to;

when a determination result of the transmit power determining unit is that the lowest transmit power is lower than the current transmit power of the communication terminal, reduce transmit power of the communication terminal according to a preset step length until the transmit power of the communication terminal is equal to the lowest transmit power acquired by lowest transmit power acquiring unit or quality of a current data transmission service meets a preset requirement.

9. A communication terminal, comprising an apparatus for wireless network connection that comprises:

a lowest transmit power acquiring unit, configured to acquire a lowest transmit power of a communication terminal that establishes connection with a wireless network access point, wherein the lowest transmit power is minimum transmit power that ensures connection and communication between the communication terminal and the wireless network access point; and

a transmit power adjusting unit, configured to adjust and determine transmit power of the communication terminal according to the lowest transmit power.

10. (canceled)