METHOD AND APPARATUS FOR DATA TRANSMISSION IN WIRELESS LOCAL ACCESS NETWORK AND SYSTEM THEREFOR
First Claim
1. A method for data transmission and reception in a portable terminal connected to an Access Point (AP) in a Wireless Local Access Network (WLAN), the method comprising:
- transmitting, if transmission standby data exist in the AP in a state where a Central Processing Unit (CPU) is in a standby state, a standby state entrance frame notifying of entrance to the standby state to the AP;
switching the state of the CPU to an active state;
transmitting a frame notifying of standby state release to the AP; and
receiving the transmission standby data from the AP.
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Accused Products
Abstract
An Apparatus, method, and system for transmitting data in a Wireless Local Access Network (WLAN) in a power management state are provided. The method includes registering a standby state entrance to an Access Point (AP), switching to an active state at a period, determining whether transmission standby data exists in the AP, transmitting, if the transmission standby data exist in the AP, a standby state entrance frame notifying the entrance to the standby state to the AP, transmitting an active request signal requesting a switching to an active state to the CPU, transmitting a signal notifying standby state release to the AP if a signal notifying switch completion to an active state is received from the CPU after the active request signal is transmitted, and receiving transmission standby data from the AP.
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Citations
21 Claims
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1. A method for data transmission and reception in a portable terminal connected to an Access Point (AP) in a Wireless Local Access Network (WLAN), the method comprising:
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transmitting, if transmission standby data exist in the AP in a state where a Central Processing Unit (CPU) is in a standby state, a standby state entrance frame notifying of entrance to the standby state to the AP; switching the state of the CPU to an active state; transmitting a frame notifying of standby state release to the AP; and receiving the transmission standby data from the AP. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for data transmission and reception in a portable terminal connected to an Access Point (AP) in a Wireless Local Access Network (WLAN), the apparatus comprising:
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a WLAN module for transmitting, if transmission standby data exist in the AP in a state where a Central Processing Unit (CPU) is in a standby state, a frame notifying of entrance to the standby state to the AP and for transmitting a signal requesting a switch to an active state to the CPU; and the CPU for processing data in an active state, for switching to one of a standby state and an active state according to whether there are data to be processed for a period of time, and for transmitting a signal notifying a state switch to the wireless LAN module. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for transmitting data in a Wireless Local Access Network (WLAN), comprising:
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an Access Point (AP); and a plurality of portable terminals, wherein the AP transmits data to the plurality of portable terminals in the WLAN, stores data for a portable terminal in a standby state, and transmits data to the portable terminal when the portable terminal releases its standby state and the portable terminal is connected to the AP, determines whether transmission standby data exist in the AP while it is in a standby state, and transmits a frame notifying of entrance to a standby state to the AP if the data exist. - View Dependent Claims (21)
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Specification