专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20210368436A1 APPARATUS AND METHOD FOR A MOBILE ACCESS POINT STATION 有权
公开(公告)号：US20210368436A1
公开(公告)日：2021-11-25
申请号：US17340980
申请日：2021-06-07
申请人： Apple Inc.
发明人： Guoqing LI , Dagbegnon H. BAHINI , Rajneesh KUMAR
IPC分类号： H04W52/02 , H04W76/28 , H04W72/12 , H04W88/08
摘要： Some embodiments include an apparatus and method for a mobile access point (AP) station that operates in an always-on soft AP mode where a station is associated with the mobile AP station, and switch back to operate as a station in an infrastructure mode with an AP. For example, in an always-on soft AP mode, the mobile AP station may implement a target wake time (TWT) responder power save mode feature. The mobile AP station may maintain a wake window after a beacon to enable unassociated devices to associate; establish a broadcast TWT schedule for unassociated TWT-capable devices to associate; schedule TWT for associated devices; go to sleep outside of the scheduled TWT of the associated devices; and switch back to infrastructure mode to perform as a station and maintain a connection with an AP.

2. 发明申请

US20200008210A1 APPARATUS AND METHOD FOR SCHEDULED UPLINK MULTI-USER ACCESS WITH CONCURRENT PEER-TO-PEER COMMUNICATIONS 审中-公开
公开(公告)号：US20200008210A1
公开(公告)日：2020-01-02
申请号：US16262402
申请日：2019-01-30
申请人： Apple Inc.
发明人： Guoqing LI , Lawrie KURIAN , Yong LIU , Tashbeeb HAQUE , Anand RAJAGOPALAN , Dagbegnon H. BAHINI , Rajneesh KUMAR
IPC分类号： H04W72/12 , H04W72/04
摘要： Some embodiments include an apparatus and method for enabling concurrent peer-to-peer (P2P) communications via a scheduled resource unit (RU) allocated by an access point (AP). For example, the AP may use a trigger frame to schedule uplink (UL) multi-user (MU) access for a first station of a plurality of stations by allocating an RU to the first station. Instead of using the allocated RU for UL infrastructure communications with the AP, the first station may utilize the allocated RU for a P2P communications with a second station. In some embodiments the AP facilitates RU utilization for P2P communications between stations. In some embodiments, the first station uses the allocated RU and the AP may be unaware of the P2P communications.

3. 发明申请

US20170331605A1 WIRELESS LOCAL AREA NETWORK SOUNDING PROTOCOL 审中-公开
公开(公告)号：US20170331605A1
公开(公告)日：2017-11-16
申请号：US15590960
申请日：2017-05-09
申请人： Apple Inc.
发明人： Oren SHANI , Guoqing LI , Joonsuk KIM , Ashok RANGANATH
IPC分类号： H04L5/00 , H04W72/04 , H04W84/12
摘要： An access point (AP) in a wireless local area network (WLAN) uses a protocol to determine frequency/time resource allocations of resource units (RUs) in parallel with data transfer to and from WLAN stations (STAs). The AP generates a sounding table associating STAs with RUs for uplink (UL) and downlink (DL). The AP processes the sounding table to create a channel map table and then the AP allocates particular RUs to particular STAs. The STAs then receive and transmit data from and to the AP over the allocated RUs. This approach achieves good throughput while reducing the use of signaling and pilot overhead associated with channel sounding. To avoid interruption of ongoing transmissions, a newly arriving STA is grouped and sounded with other STAs. The protocol includes a joint sounding and data epoch followed by a determination of the channel map table.

4. 发明申请

US20170311166A1 CONTROLLED SPATIAL REUSE IN A WLAN 审中-公开
公开(公告)号：US20170311166A1
公开(公告)日：2017-10-26
申请号：US15498358
申请日：2017-04-26
申请人： Apple Inc.
发明人： Guoqing LI , Christiaan A. HARTMAN , Jarkko KNECKT , Yong LIU , Su Khiong YONG , Joonsuk KIM , Oren SHANI
IPC分类号： H04W16/02 , H04W52/26 , H04W72/04 , H04B17/24 , H04W88/08 , H04L12/931 , H04W84/12
CPC分类号： H04W16/02 , H04L49/201 , H04W52/367 , H04W74/006 , H04W84/12 , H04W88/08
摘要： An interface circuit in an electronic device may receive, from an access point associated with the electronic device, a frame with management information that enables the electronic device to use a spatial-reuse technique, where the electronic device, through the spatial-reuse technique, adjusts a transmit power and a channel-availability sensing threshold. Moreover, the management information may specify parameters for the spatial-reuse technique. Then, the electronic device may transmit, using the spatial-reuse technique, one or more frames to the access point based on the parameters. Furthermore, the electronic device may transmit, to the access point, feedback information that indicates communication performance during the communication between the electronic device and the access point. For example, the feedback information may include a retry rate and, more generally, communication-performance information. This feedback information may be used by the access point to modify the parameters.

5. 发明申请

US20170163446A1 OPPORTUNISTIC MEASUREMENT AND FEEDBACK IN A WIRELESS LOCAL AREA NETWORK 审中-公开
公开(公告)号：US20170163446A1
公开(公告)日：2017-06-08
申请号：US15371049
申请日：2016-12-06
申请人： Apple Inc.
发明人： Guoqing LI , Joonsuk KIM
IPC分类号： H04L25/02 , H04B17/336 , H04W72/08 , H04B17/318
CPC分类号： H04L25/0202 , H04B17/318 , H04B17/336 , H04L1/1685 , H04L1/20 , H04L25/0224 , H04W72/085 , H04W84/12 , H04W88/02 , H04W88/08
摘要： Uplink resource assignment in a wireless local area network (WLAN) by an access point (AP) to wireless stations (STAs) is herein provided using opportunistic feedback from the STAs. The AP sends a message to a first STA; the message is also observed by a second STA. Each STA can determine if it wishes to opportunistically send information concerning the message to the AP. The second STA can perform power measurements on the message and send subcarrier signal to noise ratio (SNR) or ranking information to the AP. Thus, the AP can receive, possibly without expectation, encoded or compressed information describing radio channels of the first STA and/or the second STA. Based on the received channel information the AP improves operation of a dynamic resource allocation algorithm which determines uplink grants of resource units (RUs) to the STAs.

6. 发明申请

US20160330718A1 User Assignment of Resource Blocks in a Preamble 审中-公开
标题翻译：序言中资源块的用户分配
公开(公告)号：US20160330718A1
公开(公告)日：2016-11-10
申请号：US15146087
申请日：2016-05-04
申请人： Apple Inc.
发明人： Joonsuk KIM , Guoqing LI , Syed Aon Mujtaba
IPC分类号： H04W72/04 , H04L5/00
摘要： Disclosed herein are system, method, and computer program product embodiments for providing an efficient way to assign resource blocks to user receiver devices in a wireless communications protocol. For example, the method can receive a frame for a wireless communications protocol. The method can also extract a unique value from a tone mapping field in a preamble of the frame. The method can also look up a resource block allocation for a portion of the tone space in a lookup table using the unique value. Further, the method can extract an assignment field from the preamble based on the determined resource block allocation. The method can also determine an assigned resource block number based on the assignment field. The method can also assign a resource block corresponding to the assigned resource block number to a user receiver device.
摘要翻译：这里公开的是用于提供在无线通信协议中向用户接收机设备分配资源块的有效方式的系统，方法和计算机程序产品实施例。例如，该方法可以接收无线通信协议的帧。该方法还可以从帧的前导码中的色调映射字段中提取唯一值。该方法还可以使用唯一值查找查找表中的音调空间的一部分的资源块分配。此外，该方法可以基于所确定的资源块分配从前导码提取分配字段。该方法还可以基于分配字段确定分配的资源块号。该方法还可以将与分配的资源块号相对应的资源块分配给用户接收机设备。

7. 发明申请

US20210329551A1 LAST SEQUENCE NUMBER INDICATION 有权
公开(公告)号：US20210329551A1
公开(公告)日：2021-10-21
申请号：US17233372
申请日：2021-04-16
申请人： Apple Inc.
发明人： Yoel BOGER , Guoqing LI
IPC分类号： H04W52/02 , H04L29/06
摘要： The subject technology provides a receiving device with an indication of a last packet being transmitted in a group of packets. In this manner, the receiving device can enter a low power mode after determining that the last packet in the group of packets has been received (e.g., in addition to all prior packets in the group). For example, in the subject system a transmitting device may provide an indication of the sequence number of a last packet in the group, such as by inserting the indication into a header of one or more packets in the group of packets. In one or more implementations, each packet may include a sequence number, thus the sequence number of the last packet in the group may be the highest sequence number across the group.

8. 发明申请

US20180227917A1 BASIC BANDWIDTH DEVICE ON SECONDARY CHANNEL 审中-公开
公开(公告)号：US20180227917A1
公开(公告)日：2018-08-09
申请号：US15783784
申请日：2017-10-13
申请人： Apple Inc.
发明人： Guoqing LI , Jarkko L. KNECKT , Christiaan A. HARTMAN , Yong LIU , Su Khiong YONG
IPC分类号： H04W72/04
CPC分类号： H04W72/0453 , H04W52/0216 , H04W72/0413 , H04W72/042 , H04W84/12 , Y02D70/00 , Y02D70/10 , Y02D70/1262 , Y02D70/1264 , Y02D70/14 , Y02D70/142 , Y02D70/144 , Y02D70/166 , Y02D70/20 , Y02D70/22 , Y02D70/26
摘要： A basic bandwidth wireless local area network (WLAN) device or station (STA) is assigned to a secondary channel. The basic bandwidth STA may be a 20 MHz STA. On the secondary channel, the basic bandwidth STA operates in a wideband mode recovering received data transmitted from an access point (AP) as part of a high bandwidth physical layer protocol data unit (PPDU). The STA and the AP can be members of a basic service set (BSS). The high bandwidth PPDU may be, for example, a 40 MHz, 60 MHz, or 80 MHz PPDU. Once on the secondary channel, the STA relies on the AP to perform channel sensing and scheduling activities, thus reducing power consumption at the STA and increasing the efficiency of the BSS. Several signaling formats are provided for indicating the secondary channel that the STA is assigned to or requests to move to.

9. 发明申请

US20180014165A1 TRIGGERED WIRELESS ACCESS PROTOCOL WITH GROUPED MULTI-USER TRANSMISSIONS 审中-公开
公开(公告)号：US20180014165A1
公开(公告)日：2018-01-11
申请号：US15644481
申请日：2017-07-07
申请人： Apple Inc.
发明人： Guoqing LI , Oren SHANI , Christiaan A. HARTMAN , Jarkko L. KNECKT , Syed A. MUJTABA , Matthew L. SEMERSKY , Yaniv DVORY , Hay LEV , Yoel BOGER
IPC分类号： H04W4/08 , H04L5/00 , H04W84/12 , H04W88/08 , H04W88/02
摘要： An access point transmits a trigger frame to a set of electronic devices in a wireless local area network (WLAN). In response to one or more requests to send data, the access point transmits the trigger frame, which includes information specifying an ordered list of electronic devices in the set of electronic devices that are allowed to transmit, and that groups the electronic devices in the ordered list of electronic devices into a first subset of the electronic devices and a second subset of the electronic devices. Subsequently, the access point sequentially receives one or more frames from the ordered list of electronic devices, where a first group of the frames received from at least some of the first subset of the electronic devices use single-user transmission and a second group of frames received from at least some of the second subset of the electronic devices use multi-user transmission.

10. 发明申请

US20170353921A1 SOFTWARE-ENABLED ACCESS POINT WITH POWER SAVING 审中-公开
公开(公告)号：US20170353921A1
公开(公告)日：2017-12-07
申请号：US15615218
申请日：2017-06-06
申请人： Apple Inc.
发明人： Guoqing LI , Oren SHANI , Yong LIU , Christiaan A. HARTMAN , Jarkko L. KNECKT , Joonsuk KIM , Su Khiong YONG
IPC分类号： H04W52/02
摘要： An access point establishes target wakeup times (TWTs) with one or more associated electronic devices in a WLAN. The access point transitions to a power-saving mode outside of the one or more TWTs. The access point maintains synchronization with the one or more electronic devices, during at least a first TWT in the one or more TWTs, by transmitting, to the one or more electronic devices, a TWT beacon that includes, or in conjunction with, synchronization information. Alternatively or additionally, during at least the first TWT, the access point transmits a multi-user trigger frame that includes the synchronization information to the one or more electronic devices. In response to the multi-user trigger frame, the access point receives data frames from the one or more electronic devices, transmits one or more acknowledgments, and transitions into the power-saving mode during a remainder of at least the first TWT.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式