[특허]Measurement support for a smart antenna in a wireless communication system

[미국특허] Measurement support for a smart antenna in a wireless communication system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-001/38 H04B-007/06 H04B-007/0408 H04B-007/08 H04B-017/24 H04B-017/318 H04B-017/10 H04L-005/14 H04W-024/08 H04B-017/336 H04W-084/12
출원번호	US-0352805 (2016-11-16)
등록번호	US-9967016 (2018-05-08)
발명자 / 주소	Pinheiro, Ana Lucia A. Chandra, Arty Cha, Inhyok Marinier, Paul Roy, Vincent
출원인 / 주소	InterDigital Technology Corporation
대리인 / 주소	Condo Roccia Koptiw LLP
인용정보	피인용 횟수 : 0 인용 특허 : 21

초록 ▼

A method for taking measurements with a smart antenna in a wireless communication system having a plurality of STAs begins by sending a measurement request from a first STA to a second STA. At least two measurement packets are transmitted consecutively from the second STA to the first STA. Each measurement packet is received at the first STA using a different antenna beam. The first STA performs measurements on each measurement packet and selects an antenna beam direction based on the measurement results.

대표청구항 ▼

1. A first station (STA), comprising: a processor configured to:send, to a second STA, an indication of a requested number of measurement packets;receive, at the first STA, the requested number of measurement packets from the second station consecutively, wherein the measurement packets are separated by a short interframe space (SIFS), and wherein the first STA uses a different receive beam for each measurement packet;measure each of the received measurement packets; andselect a beam based on the measurement of each of the received measurement packets. 2. The first STA of claim 1, wherein the indication of the requested number of measurement packets is provided in a measurement request packet sent by the first STA to the second STA. 3. The first STA of claim 2, wherein the indication provided in the measurement request packet is indicated via a field of the measurement request packet. 4. The first STA of claim 1, wherein each measurement packet includes sequence information. 5. The first STA of claim 1, wherein the processor being configured to select a beam based on the measurement of each of the received measurement packets comprises being configured to use the received signal strength of each packet. 6. The first STA of claim 1, wherein the processor is further configured to receive an ACK from the second STA, wherein the ACK is associated with the measurement request packet, and wherein the ACK is received after a short interframe space (SIFS). 7. A method for use in a first station (STA), the method comprising: sending, to a second STA, an indication of a requested number of measurement packets;receiving an ACK from the second STA;receiving, at the first STA, the requested number of measurement packets from the second station consecutively, wherein the measurement packets are separated by a short interframe space (SIFS), and wherein the first STA uses a different receive beam for each measurement packet;measuring each of the received measurement packets; andselecting a beam based on the measurement of each of the received measurement packets. 8. The method of claim 7, wherein the indication of the requested number of measurement packets is provided in a measurement request packet sent by the first STA to the second STA. 9. The method of claim 8, wherein the indication provided in the measurement request packet is indicated via a field of the measurement request packet. 10. The method of claim 7, wherein each measurement packet includes sequence information. 11. The method of claim 7, wherein selecting a beam based on the measurement of each of the received measurement packets comprises using the received signal strength of each packet. 12. The method of claim 7, wherein the ACK is associated with the measurement request packet, and wherein the ACK is received after a short interframe space (SIFS).

이 특허에 인용된 특허 (21) 인용/피인용 타임라인 분석

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Bantz David F. (Chappaqua NY) Bauchot Frederic J. (LaTourraque Saint-Jeannet FRX) Huang Chia-Chi (Hsinchu TWX) Moulton Nicholas J. A. (Sawston GB2), Diversity transmission strategy in mobile/indoor cellula radio communications.
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Hashem, Bassam M.; Steer, David G.; Periyalwar, Shalini S., Dynamic sub-carrier assignment in OFDM systems.
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Lindskog, Erik D.; Trott, Mitchell D.; Trigui, Hafedh; de la Barbosa, Serge, Estimation of downlink transmission parameters in a radio communications system with an adaptive antenna array.
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Rodrigo Garces ; Padmasheela Rayala ; Hojat Khelghati, Method and apparatus for selecting a directional antenna in a wireless communication system.
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Urban, Jeffrey; Barhorst, Jeffrey; Solomon, Christopher C.; Edwards, Herbert; Oltrogge, Chris; Albert, Adam, Method and apparatus for transportation of data over a managed wireless network using unique communication protocol.
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Per Hans .ANG.ke Willars SE; Karl Anders Nasman SE, Methods and arrangements in a radio communications system.
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Kasapi, Athanasios A., Mode switching in adaptive array communications systems.
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Sun, Qinfang; Choi, Won Joon; Gilbert, Jeffrey M.; Tehrani, Ardavan Maleki, Multiple-input multiple output system and method.
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Nguyen,Hung, Selecting a set of antennas for use in a wireless communication system.
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Hood, III, Charles D., System for reducing multipath fade of RF signals in a wireless data application.
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Drynan David S. (Ottawa CAX) Baker David M. (Ottawa CAX), Transmitting sequence numbers of information in a packet data transmission system.
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Mishra, Partho P.; Goel, Sandesh, Wireless MAC layer throughput improvements.
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Sumeet Sandhu ; Arogyaswami Paulraj, Wireless communication system with adaptive beam selection.
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Messenger Steven (Scarborough CAX), Wireless local area network.
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Watanabe, Yoshinori; Kobayashi, Hirokazu; Doi, Hiroshi, Wireless network system and communication method employing both contention mode and contention-free mode.
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[미국특허] Measurement support for a smart antenna in a wireless communication system 원문보기