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US 2016/0112107 A1Published application
Beamforming Enhancements for Spatial Reuse in Wireless Networks
AssigneeMediaTek Singapore Pte. Ltd.
InventorsJames June-Ming Wang, Jianhan Liu, Thomas Edward PARE, JR., Chao-Chun Wang, Chih-Shi Yee, YungPing Hsu
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Abstract
A method of enhanced beamforming procedure to achieve spatial reuse and thereby improving cell edge performance and area throughput is proposed. The enhanced beamforming method increases the likelihood of channel access under dense deployment condition, reduces interference to OBSS, reduces collision during reception, and increases the likelihood of spatial reuse in dense deployment scenario thus leading to higher network throughput.
Claims24
A method comprising:
- performing a clear channel assessment (CCA) by an initiating wireless device to gain a transmitting opportunity (TXOP), wherein the initiating device detects channel busy due to other interfering radio signals in a wireless network;
- obtaining a spatially orthogonal (SO) condition with the other interfering radio signals;
- and
- transmitting radio signals to a target device using a beamformed antenna pattern upon satisfying the SO condition.
1 more element
A wireless device, comprising:
- a clear channel assessment (CCA) module that performs a channel sensing to gain a transmitting opportunity (TXOP), wherein the wireless device detects channel busy due to other interfering radio signals in a wireless network;
- a beamforming module that obtains a spatially orthogonal (SO) condition with the other interfering radio signals;
- and
- a transmitter that transmits radio signals to a target device using a beamformed antenna pattern upon satisfying the SO condition.
1 more element
A method comprising:
- initiating a transmitting opportunity (TXOP) based beamformed frame exchange with a non-access point station (non-AP STA) by an AP in a wireless network;
- transmitting an omni-beam frame to all stations associated with the AP to setup protection duration at the beginning of the TXOP;
- and
- switching to beamformed transmission and reception with the STA for the remainder of the TXOP duration, wherein the beamformed transmission and reception is for both preamble and payload of each frame.
1 more element
Dependencies are inferred from the claim text.