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    Spectrum Efficiency for Uplink Wireless Communications
    2.
    发明申请
    Spectrum Efficiency for Uplink Wireless Communications 审中-公开

    公开(公告)号：US20170265191A1

    公开(公告)日：2017-09-14

    申请号：US15067380

    申请日：2016-03-11

    Applicant: Nokia Technologies Oy

    Inventor： Wessam Afifi Ahmed ,  Enrico-Henrik Rantala ,  Eric Torkildson ,  Sayantan Choudhury ,  Esa Juhani Tuomaala

    IPC: H04W72/04 ,  H04W74/08

    CPC classification number: H04W72/0453 ,  H04W72/10 ,  H04W74/0808 ,  H04W74/0875

    Abstract: A wireless network having one or more access points and one or more stations may improve spectrum efficiency for uplink transmissions by assigning a plurality of stations to a channel (or subchannel), each with a different priority. A channel may be assigned to a first station with the first priority, a second station with a second priority, and so on (e.g., instead of assigning the channel to just one station). An access point may transmit information indicative of the channel assignments, priorities, and other information used by stations to perform uplink transmissions. If a station with the highest priority receives the data from the access point, it may start transmission. A station with a lower priority may listen, during a listening period, to the same channel and determine whether the higher priority station started transmission during the listening period. If the higher priority station did not start transmission during the listening period, the lower priority station may transmit uplink data to the access point.

    Efficient Uplink Data Indication Techniques for MIMO-OFDMA Transmission in WLAN
    3.
    发明申请
    Efficient Uplink Data Indication Techniques for MIMO-OFDMA Transmission in WLAN 有权
    WLAN中MIMO-OFDMA传输的高效上行数据指示技术

    公开(公告)号：US20160338040A1

    公开(公告)日：2016-11-17

    申请号：US15155407

    申请日：2016-05-16

    Applicant: Nokia Technologies Oy

    Inventor： Namyoon Lee ,  Sarabjot Singh ,  Esa Tuomaala ,  Sayantan Choudhury

    IPC: H04W72/04 ,  H04B7/04 ,  H04L5/00

    CPC classification number: H04W72/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04L5/0007 ,  H04W8/26

    Abstract: Uplink data indication transmission(s) are received over a subband and over OFDM symbol(s) from STA(s) in a wireless communication system. The received uplink data indication transmission(s) are decoded to determine a unique codeword for each of the STA(s). From the determined unique codewords and using a mapping between station IDs and codewords in a codebook, a unique station ID is determined for each of the STA(s). For STA(s) determined to have sent the uplink data indication, other operations are performed to prepare for subsequent reception of uplink data from the STA(s) determined to have sent the uplink data indication.

    Abstract translation: 上行链路数据指示传输在无线通信系统中通过子带和来自STA的一些或多个OFDM符号被接收。 所接收的上行链路数据指示传输被解码以确定每个STA的唯一码字。 从所确定的唯一码字并使用码本中的站ID和码字之间的映射，确定每个STA的唯一站ID。 对于确定已发送上行链路数据指示的STA，执行其他操作以准备随后从被确定已经发送上行链路数据指示的STA接收到上行链路数据。

    Solving exposed terminal problems in wireless networks
    4.
    发明授权
    Solving exposed terminal problems in wireless networks 有权
    解决无线网络中暴露的终端问题

    公开(公告)号：US09445362B2

    公开(公告)日：2016-09-13

    申请号：US14104337

    申请日：2013-12-12

    Applicant: Nokia Technologies Oy

    Inventor： Chittabrata Ghosh ,  Sayantan Choudhury

    IPC: G08C17/00 ,  H04W48/20 ,  H04W52/02

    CPC classification number: H04W48/20 ,  H04W4/08 ,  H04W48/10 ,  H04W52/02 ,  H04W72/005 ,  H04W72/0446 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

    Abstract: Methods, apparatus and program products are disclosed for allowing wireless devices in two wireless access networks whose coverage areas overlap to communicate with their respective access nodes. Groups may be assigned to wireless devices in the access networks and the groups may be used by wireless devices in the access networks to determine whether to access a communication medium or not. Received powers may also be used by wireless devices in the access networks to determine whether or not to access a communication medium. A wireless device in a first access network can determine whether to access (e.g., compete for access to) the communication medium by comparing a measured power of transmission from a second access node with an indication of a minimum received power above which wireless devices in a second access network formed by a second access node are allowed to contend for access to the communication medium.

    Abstract translation: 公开了方法，装置和程序产品，用于允许覆盖区域重叠的两个无线接入网络中的无线设备与其各自的接入节点进行通信。 组可以被分配给接入网络中的无线设备，并且组可以被接入网络中的无线设备使用以确定是否访问通信介质。 接入网络中的无线设备也可以使用接收功率来确定是否访问通信介质。 第一接入网络中的无线设备可以通过将来自第二接入节点的测量的传输功率与最小接收功率的指示进行比较来确定是否接入（例如，竞争获取）通信介质， 允许由第二接入节点形成的第二接入网络用于访问通信介质。

    Spectrum efficiency for uplink wireless communications
    5.
    发明授权
    Spectrum efficiency for uplink wireless communications 有权

    公开(公告)号：US11019621B2

    公开(公告)日：2021-05-25

    申请号：US15067380

    申请日：2016-03-11

    Applicant: Nokia Technologies Oy

    Inventor： Wessam Afifi Ahmed ,  Enrico-Henrik Rantala ,  Eric Torkildson ,  Sayantan Choudhury ,  Esa Juhani Tuomaala

    IPC: H04W72/04 ,  H04W72/10 ,  H04W74/08

    Abstract: A wireless network having one or more access points and one or more stations may improve spectrum efficiency for uplink transmissions by assigning a plurality of stations to a channel (or subchannel), each with a different priority. A channel may be assigned to a first station with the first priority, a second station with a second priority, and so on (e.g., instead of assigning the channel to just one station). An access point may transmit information indicative of the channel assignments, priorities, and other information used by stations to perform uplink transmissions. If a station with the highest priority receives the data from the access point, it may start transmission. A station with a lower priority may listen, during a listening period, to the same channel and determine whether the higher priority station started transmission during the listening period. If the higher priority station did not start transmission during the listening period, the lower priority station may transmit uplink data to the access point.

    SENSITIVITY TUNING IN WIRELESS NETWORKS
    6.
    发明申请
    SENSITIVITY TUNING IN WIRELESS NETWORKS 审中-公开
    无线网络灵敏度调谐

    公开(公告)号：US20170006616A1

    公开(公告)日：2017-01-05

    申请号：US14791295

    申请日：2015-07-03

    Applicant: Nokia Technologies Oy

    Inventor： Sarabjot Singh ,  Sayantan Choudhury ,  Enrico-Henrik Rantala ,  Namyoon Lee ,  Esa Juhani Tuomaala

    IPC: H04W72/08 ,  H04W74/08

    CPC classification number: H04W72/085 ,  H04W74/0808

    Abstract: An access point in a random access wireless network is presented, which performs medium access control for transmissions from a plurality of stations to the access point using a carrier sense multiple access protocol. The CSMA protocol is based on the access point having a variable sensitivity level to detecting other transmissions on a wireless channel in order to avoid data collisions. In a dense network environment, the sensitivity level can be reduced to avoid detecting transmissions to other access points, and thus improve area efficiency.

    Abstract translation: 呈现随机接入无线网络中的接入点，其使用载波侦听多址协议对从多个站到接入点的传输执行媒体访问控制。 CSMA协议基于具有可变灵敏度级别的接入点来检测无线信道上的其他传输，以避免数据冲突。 在密集的网络环境中，可以降低灵敏度级别，以避免检测到其他接入点的传输，从而提高区域效率。

    Procedure for setting threshold for accessing channel
    10.
    发明授权
    Procedure for setting threshold for accessing channel 有权

    公开(公告)号：US09609667B2

    公开(公告)日：2017-03-28

    申请号：US14640120

    申请日：2015-03-06

    Applicant: Nokia Technologies Oy

    Inventor： Sarabjot Singh ,  Sayantan Choudhury ,  Esa Tuomaala

    IPC: H04W74/08 ,  H04W72/08

    CPC classification number: H04W74/0808 ,  H04W72/085

    Abstract: This document discloses a solution for determining a channel assessment threshold in an apparatus. A method according to this solution includes: determining, by the apparatus, a channel assessment threshold based on a factor representative of a signal-to-interference ratio at another apparatus with which said apparatus has established a link; determining, by the apparatus on the basis of the channel assessment threshold, whether or not a channel is free for transmission over the link; and upon determining the channel to be free, causing transmission of a frame.

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