US2017134075A1PendingUtilityA1

Uplink channel information

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Assignee: QUALCOMM INCPriority: Nov 10, 2015Filed: Sep 9, 2016Published: May 11, 2017
Est. expiryNov 10, 2035(~9.3 yrs left)· nominal 20-yr term from priority
Inventors:Chin-Hung ChenNing ZhangYouhan Kim
H04W 72/23H04W 72/21H04L 27/2601H04B 7/0452H04W 84/12H04B 7/0626H04B 7/0619H04B 7/0617H04W 72/1263H04B 7/0413H04L 25/0202H04W 72/0413H04W 72/042
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Claims

Abstract

A method for determining uplink channel information includes sending a trigger frame from an access point of a wireless network to a plurality of stations in the wireless network. The method also includes receiving an uplink transmission from at least one station of the plurality of stations in response to sending the trigger frame. The method further includes determining uplink channel data based on the uplink transmission. The method also includes sending the uplink channel data to the at least one station. The uplink channel data is usable by the at least one station to send data to the access point.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of determining uplink channel information, the method comprising:
 sending a trigger frame from an access point of a wireless network to a plurality of stations in the wireless network;   receiving, at the access point, an uplink transmission from at least one station of the plurality of stations in response to sending the trigger frame;   determining, at the access point, uplink channel data based on the uplink transmission; and   sending the uplink channel data from the access point to the at least one station, the uplink channel data usable by the at least one station to send data to the access point.   
     
     
         2 . The method of  claim 1 , wherein the wireless network operates in accordance with an Institute of Electrical and Electronics Engineers 802.11ax protocol. 
     
     
         3 . The method of  claim 1 , wherein the uplink transmission comprises an uplink multiple user packet. 
     
     
         4 . The method of  claim 3 , wherein the uplink multiple user packet comprises a high-efficiency null data packet from each station of the plurality of stations. 
     
     
         5 . The method of  claim 3 , wherein the trigger frame comprises one or more null data packets, and wherein the uplink multiple user packet comprises a high-efficiency sounding signal and coordinated beamforming information. 
     
     
         6 . The method of  claim 5 , wherein the uplink channel data comprises coordinated beamforming information that is sent according to a multiple-user multiple-input-multiple-output transmission scheme. 
     
     
         7 . The method of  claim 3 , wherein the uplink multiple user packet is transmitted according to a multiple-user multiple-input-multiple-output transmission scheme, an orthogonal frequency division multiple access transmission scheme, or a combination thereof. 
     
     
         8 . The method of  claim 1 , wherein the uplink channel data comprises coordinated beamforming information. 
     
     
         9 . The method of  claim 8 , wherein the coordinated beamforming information is sent according to an orthogonal frequency division multiple access transmission scheme or a single-user transmission scheme. 
     
     
         10 . An apparatus comprising:
 a processor; and   a memory storing instructions executable by the processor to perform operations comprising:
 sending a trigger frame from an access point of a wireless network to a plurality of stations in the wireless network; 
 receiving, at the access point, an uplink transmission from at least one station of the plurality of stations in response to sending the trigger frame; 
 determining, at the access point, uplink channel data based on the uplink transmission; and 
 sending the uplink channel data from the access point to the at least one station, the uplink channel data usable by the at least one station to send data to the access point. 
   
     
     
         11 . The apparatus of  claim 10 , wherein the wireless network operates in accordance with an Institute of Electrical and Electronics Engineers 802.11ax protocol. 
     
     
         12 . The apparatus of  claim 10 , wherein the uplink transmission comprises an uplink multiple user packet. 
     
     
         13 . The apparatus of  claim 12 , wherein the uplink multiple user packet comprises a high-efficiency null data packet from each station of the plurality of stations. 
     
     
         14 . The apparatus of  claim 12 , wherein the trigger frame comprises one or more null data packets, and wherein the uplink multiple user packet comprises a high-efficiency sounding signal and coordinated beamforming information. 
     
     
         15 . The apparatus of  claim 14 , wherein the uplink channel data comprises coordinated beamforming information that is sent according to a multiple-user multiple-input-multiple-output transmission scheme. 
     
     
         16 . The apparatus of  claim 12 , wherein the uplink multiple user packet is transmitted according to a multiple-user multiple-input-multiple-output transmission scheme, an orthogonal frequency division multiple access transmission scheme, or a combination thereof. 
     
     
         17 . The apparatus of  claim 10 , wherein the uplink channel data comprises coordinated beamforming information. 
     
     
         18 . The apparatus of  claim 17 , wherein the coordinated beamforming information is sent according to an orthogonal frequency division multiple access transmission scheme or a single-user transmission scheme. 
     
     
         19 . A non-transitory computer-readable medium comprising instructions for determining uplink channel information, the instructions, when executed by a processor, cause the processor to perform operations comprising:
 sending a trigger frame from an access point of a wireless network to a plurality of stations in the wireless network;   receiving, at the access point, an uplink transmission from at least one station of the plurality of stations in response to sending the trigger frame;   determining, at the access point, uplink channel data based on the uplink transmission; and   sending the uplink channel data from the access point to the at least one station, the uplink channel data usable by the at least one station to send data to the access point.   
     
     
         20 . The non-transitory computer-readable medium of  claim 19 , wherein the wireless network operates in accordance with an Institute of Electrical and Electronics Engineers 802.11ax protocol. 
     
     
         21 . The non-transitory computer-readable medium of  claim 19 , wherein the uplink transmission comprises an uplink multiple user packet. 
     
     
         22 . The non-transitory computer-readable medium of  claim 21 , wherein the uplink multiple user packet comprises a high-efficiency null data packet from each station of the plurality of stations. 
     
     
         23 . The non-transitory computer-readable medium of  claim 21 , wherein the trigger frame comprises one or more null data packets, and wherein the uplink multiple user packet comprises a high-efficiency sounding signal and coordinated beamforming information. 
     
     
         24 . The non-transitory computer-readable medium of  claim 23 , wherein the uplink channel data comprises coordinated beamforming information that is sent according to a multiple-user multiple-input-multiple-output transmission scheme. 
     
     
         25 . The non-transitory computer-readable medium of  claim 21 , wherein the uplink multiple user packet is transmitted according to a multiple-user multiple-input-multiple-output transmission scheme, an orthogonal frequency division multiple access transmission scheme, or a combination thereof. 
     
     
         26 . The non-transitory computer-readable medium of  claim 19 , wherein the uplink channel data comprises coordinated beamforming information. 
     
     
         27 . The non-transitory computer-readable medium of  claim 26 , wherein the coordinated beamforming information is sent according to an orthogonal frequency division multiple access transmission scheme or a single-user transmission scheme. 
     
     
         28 . An apparatus comprising:
 means for sending a trigger frame from an access point of a wireless network to a plurality of stations in the wireless network;   means for receiving, at the access point, an uplink transmission from at least one station of the plurality of stations in response to sending the trigger frame;   means for determining, at the access point, uplink channel data based on the uplink transmission; and   means for sending the uplink channel data from the access point to the at least one station, the uplink channel data usable by the at least one station to send data to the access point.   
     
     
         29 . The apparatus of  claim 28 , wherein the wireless network operates in accordance with an Institute of Electrical and Electronics Engineers 802.11ax protocol. 
     
     
         30 . The apparatus of  claim 28 , wherein the uplink transmission comprises an uplink multiple user packet.

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