Power savings with preamble in;systems
First Claim
1. An electronic device, comprising:
- an antenna;
a receive circuit, coupled to the antenna, configured to receive packets from another electronic device using a wireless local area network (WLAN), wherein the receive circuit is configured to analyze fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet, wherein the fields are included in a preamble of the given packet, wherein the information replaces length information in a high-throughput signal field in the preamble of the given packet; and
control logic coupled to the receive circuit, wherein, in response to determining the destination not being the electronic device, the control logic is configured to dump the given packet and to change a power state of the electronic device.
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Accused Products
Abstract
In order to reduce power consumption of an electronic device during communication with another electronic device in a wireless local area network (WLAN), the electronic device analyzes fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet. For example, the information may include: a full associated identification (AID) of the destination, a partial media-access-control (MAC) address of the destination; and/or a compressed (MAC) address of the destination. The information may be included in the preamble of the given packet. In particular, the information may replace length information in a high-throughput signal field in the given packet. Moreover, if the destination is other than the electronic device, the electronic device dumps the given packet and changes a power state of the electronic device, thereby reducing the power consumption.
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Citations
19 Claims
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1. An electronic device, comprising:
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an antenna; a receive circuit, coupled to the antenna, configured to receive packets from another electronic device using a wireless local area network (WLAN), wherein the receive circuit is configured to analyze fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet, wherein the fields are included in a preamble of the given packet, wherein the information replaces length information in a high-throughput signal field in the preamble of the given packet; and control logic coupled to the receive circuit, wherein, in response to determining the destination not being the electronic device, the control logic is configured to dump the given packet and to change a power state of the electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electronic device, comprising:
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an antenna; a transmit circuit, coupled to the antenna, configured to transmit packets to another electronic device using a wireless local area network (WLAN), and wherein the transmit circuit is configured to assemble a given packet with information that specifies the another electronic device, wherein the information is in a preamble of the given packet prior to a payload of the given packet; wherein the information includes;
a full associated identification (AID) of a destination, a partial media access control address of the destination, or a compressed media access control address of the destination; andwherein the information replaces length information in a high-throughput signal field in the preamble of the given packet. - View Dependent Claims (10, 11, 12)
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13. A method for changing a power state of an electronic device, wherein the method comprises:
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receiving packets from another electronic device using a wireless local area network (WLAN); for a given packet, analyzing, for the given packet, fields prior to a payload of the given packet to look for information that specifies a destination of the given packet, wherein the information replaces length information in a high-throughput signal field in a preamble of the given packet; and in response to the destination not being the electronic device, dumping the given packet and changing the power state of the electronic device. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification