Method and device for allocating resources by limiting ru and mru for sta operating only in 20mhz band in wlan system
US-2024236966-A1 · Jul 11, 2024 · US
Methods and apparatus for selecting and using communications resources in a communication system
US8995539B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995539-B2 |
| Application number | US-83526410-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 13, 2010 |
| Priority date | Jul 13, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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Methods and apparatus for determining, e.g., selecting, communications resources, e.g., tones, to use in a communications system are described. The methods are well suited for use in Orthogonal Frequency Division Multiplexing (OFDM) systems. Devices seeking to transmit information select tones in pairs for use in transmitting the information. Each tone pair includes a tone and the corresponding image tone. By restricting a communications device to select communications frequencies in pairs, the problem of interference and reduced dynamic range at a receiver due to IQ imbalance is reduced, as compared to the case where devices may use a tone independent of the corresponding image tone for transmission purposes, since the path loss from the transmitter to the receiver is likely to be the same for both tones and the transmission power level is controlled by an individual device using both of the tones.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of operating a wireless terminal, the method comprising: selecting, at the wireless terminal and for use with a communications peer in a peer to peer communications session, a first set of frequency pairs in a first OFDM symbol to use simultaneously for transmission purposes, each individual frequency pair in said first set of frequency pairs including a pair of tones with one of the tones in the individual frequency pair being at the image frequenc…
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Electricity · mapped topic
- H04L5/003Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8995539B2 cover?
- Methods and apparatus for determining, e.g., selecting, communications resources, e.g., tones, to use in a communications system are described. The methods are well suited for use in Orthogonal Frequency Division Multiplexing (OFDM) systems. Devices seeking to transmit information select tones in pairs for use in transmitting the information. Each tone pair includes a tone and the corresponding…
- Who is the assignee on this patent?
- Wu Xinzhou, Li Junyi, Subramanian Sundar, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04L5/003. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).