公开(公告)号：US20150223205A1

公开(公告)日：2015-08-06

申请号：US14685055

申请日：2015-04-13

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Dae Won LEE ,  Byeong Woo KANG ,  Bong Hoe KIM ,  Yong Ho SEOK

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04B7/0413 ,  H04L5/001 ,  H04L5/0033 ,  H04L5/0044 ,  H04L5/0094 ,  H04L61/6022 ,  H04L69/22 ,  H04L69/323 ,  H04L69/324 ,  H04W28/065 ,  H04W72/04 ,  H04W72/042 ,  H04W72/085 ,  H04W84/12 ,  H04W88/08

Abstract: According to one embodiment, a method for a wireless local area includes: generating a medium access control (MAC) protocol data unit (MPDU) to be transmitted to a target station; generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by attaching a PLCP preamble to the MPDU; selecting a transmission channel; and transmitting the PPDU to the target station over the transmission channel. Selecting the transmission channel includes: performing clear channel assessment (CCA) on a first channel to determine whether the first channel is idle; and only after it is determined that the first channel is idle, selecting the first channel and at least one idle second channel as the transmission channel. The PLCP preamble includes channel allocation information indicating a bandwidth of the transmission channel.

Abstract translation: 根据一个实施例，一种用于无线局域的方法包括：产生要发送到目标站的介质访问控制（MAC）协议数据单元（MPDU）; 通过将PLCP前导码附加到MPDU来生成物理层融合过程（PLCP）协议数据单元（PPDU）; 选择传输信道; 并通过传输信道将PPDU发送到目标站。 选择传输信道包括：在第一信道上执行清除信道评估（CCA）以确定第一信道是否空闲; 并且仅在确定第一信道空闲之后，选择第一信道和至少一个空闲第二信道作为传输信道。 PLCP前导码包括指示传输信道的带宽的信道分配信息。

公开(公告)号：US20150188735A1

公开(公告)日：2015-07-02

申请号：US14645834

申请日：2015-03-12

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Dong Wook ROH ,  Byeong Woo KANG ,  Bong Hoe KIM ,  Dae Won LEE

IPC: H04L25/03 ,  H04W72/06 ,  H04B7/04

CPC classification number: H04B7/0473 ,  H04B7/0404 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03343 ,  H04L25/03923 ,  H04L25/03929 ,  H04L27/2601 ,  H04L27/2615 ,  H04L27/2636 ,  H04L2025/03426 ,  H04W72/06

Abstract: A method for transmitting and receiving uplink signals using an optimized rank 3 codebook is disclosed. The optimized rank 3 codebook includes 6 precoding matrix groups, each of which has 1 variable having an amplitude of 1. Preferably, the optimized 4Tx rank 3 codebook has 12 precoding matrix, two precoding matrixes are selected from each the above 6 precoding matrix groups considering chordal distance and the number of precoding matrix.

Abstract translation: 公开了一种使用优化的3级码本发送和接收上行链路信号的方法。 优化的等级3码本包括6个预编码矩阵组，每个预编码矩阵组具有1个具有幅度为1的变量。优选地，优化的4Tx等级3码本具有12个预编码矩阵，考虑到上述6个预编码矩阵组中的每一个选择两个预编码矩阵 弦距离和预编码矩阵的数量。

公开(公告)号：US20150146708A1

公开(公告)日：2015-05-28

申请号：US14560971

申请日：2014-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Dong Wook ROH ,  Byeong Woo KANG ,  Yong Ho SEOK ,  Yu Jin NOH ,  Bong Hoe KIM

IPC: H04L27/22

CPC classification number: H04L27/261 ,  H03M5/12 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0061 ,  H04L25/4904 ,  H04L27/14 ,  H04L27/144 ,  H04L27/148 ,  H04L27/1563 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/2331 ,  H04L27/2332 ,  H04L27/2613 ,  H04L27/2647 ,  H04L2027/0028 ,  H04N5/4401 ,  H04Q1/46 ,  H04W28/06 ,  H04W84/12

Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.

Abstract translation: 一种在非常高吞吐量（VHT）无线局域网（WLAN）系统中发送物理层汇聚程序（PLCP）帧的方法包括生成要发送到目的站（STA）的MAC协议数据单元（MPDU） 通过将包含包含用于传统STA的控制信息的L-SIG字段和包含用于VHT STA的控制信息的VHT-SIG字段的L-SIG字段的PLCP头添加到MPDU来生成PLCP协议数据单元（PPDU），以及发送PPDU 到目的地STA。 通过旋转施加到L-SIG字段的OFDM符号的星座来获得应用于VHT-SIG字段的一些正交频分复用（OFDM）符号的星座。

公开(公告)号：US20150110047A1

公开(公告)日：2015-04-23

申请号：US14514111

申请日：2014-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Seung Hee HAN ,  Ki Jun KIM ,  Joon Kui AHN

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04J13/0048 ,  H04J13/18 ,  H04L5/0007

Abstract: A base station apparatus for transmitting a reference signal in a wireless communication system is provided in which a processor generates the same sequence for resource elements (REs) allocated to each layer for reference signal transmission and spreads or covers Walsh codes for a user equipment-specific reference signal sequence such that sequences generated for the REs can be orthogonal to each other on a time axis. The Walsh code spreading or covering by the processor is applied on a frequency axis based on a plurality of resource blocks (RBs) or based on a pair of RBs such that mutually different sequences having mutually different sequence values can be mapped between RBs or between pairs of RBs. A transmission module transmits the reference signal, to which the generated reference signal sequence is applied to user equipment via each layer.

Abstract translation: 提供了一种用于在无线通信系统中发送参考信号的基站装置，其中处理器为分配给每个层的资源元素（RE）生成相同的序列用于参考信号传输，并扩展或覆盖针对用户设备特定的Walsh码 参考信号序列，使得为RE产生的序列可以在时间轴上彼此正交。 由处理器扩展或覆盖的沃尔什码基于多个资源块（RB）或基于一对RB来施加在频率轴上，使得具有相互不同的序列值的相互不同的序列可以在RB之间或对之间映射 的RB。 传输模块经由每个层发送所生成的参考信号序列被应用于用户设备的参考信号。

公开(公告)号：US20150016388A1

公开(公告)日：2015-01-15

申请号：US14449931

申请日：2014-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Hak Seong KIM ,  Bong Hoe KIM ,  Young Woo YUN ,  Ki Jun KIM ,  Dong Wook ROH ,  Dae Won LEE ,  Suk Hyon YOON ,  Joon Kui AHN ,  Dong Youn SEO

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04B1/69 ,  H04J13/18 ,  H04L1/0033 ,  H04L1/0068 ,  H04L1/0072 ,  H04L1/1692 ,  H04L5/0007 ,  H04L5/0053 ,  H04W72/0413

Abstract: A method of transmitting a sounding reference signal includes generating a physical uplink control channel (PUCCH) carrying uplink control information on a subframe, the subframe comprising a plurality of SC-FDMA (single carrier-frequency division multiple access) symbols, wherein the uplink control information is punctured on one SC-FDMA symbol in the subframe, and transmitting simultaneously the uplink control information on the PUCCH and a sounding reference signal on the punctured SC-FDMA symbol. The uplink control information and the sounding reference signal can be simultaneously transmitted without affecting a single carrier characteristic.

Abstract translation: 发送探测参考信号的方法包括生成携带子帧上行控制信息的物理上行控制信道（PUCCH），子帧包括多个SC-FDMA（单载波 - 频分多址）符号，其中上行链路控制 信息在子帧中的一个SC-FDMA符号上被打孔，并且同时发送关于PUCCH的上行链路控制信息和在穿孔的SC-FDMA符号上的探测参考信号。 可以同时发送上行链路控制信息和探测参考信号，而不影响单载波特性。

公开(公告)号：US20150009979A1

公开(公告)日：2015-01-08

申请号：US14492975

申请日：2014-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Dae Won LEE ,  Yong Ho SEOK

IPC: H04W28/06

CPC classification number: H04W28/065 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0085 ,  H04L27/2602 ,  H04W84/12

Abstract: A method and device for receiving a data block in a wireless communication system, the method performed by a receiver. The method includes: receiving a physical layer protocol data unit (PPDU) from a transmitter over an operating channel, the PPDU including a signal field, a Very High Throughput-Signal-A (VHT-SIG-A) field, a Very High Throughput-Signal-B (VHT-SIG-B) field and a padded data block, generating a first data block by removing zero or more physical padding bits from the padded data block in a physical layer; and generating a second data block by removing zero or more Medium Access Control (MAC) padding bits from the first data block in a MAC layer.

公开(公告)号：US20140362845A1

公开(公告)日：2014-12-11

申请号：US14466203

申请日：2014-08-22

Applicant: LG Electronics Inc.

Inventor： Dae Won LEE ,  Byeong Woo KANG ,  Yu Jin NOH ,  Bong Hoe KIM ,  Yong Ho SEOK

IPC: H04L27/26

CPC classification number: H04L27/2602 ,  H04B7/0413 ,  H04L1/1812 ,  H04L5/0023 ,  H04L5/0091 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0241 ,  H04W72/0413 ,  H04W72/042 ,  H04W80/02 ,  H04W84/12 ,  H04W88/08 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method and apparatus are described for transmitting data. The method includes generating, by an access point (AP), a Physical Layer Protocol Data Unit (PPDU) including a signal field and a data field, and transmitting, by the AP, the PPDU to a station. The signal field includes a reception target indicator and an identifier field. The reception target indicator indicates whether a target of the PPDU is the AP or the station. The identifier field includes a local AP identifier identifying the AP when the reception target indicator indicates that the target of the PPDU is the station.

Abstract translation: 描述了用于发送数据的方法和装置。 该方法包括由接入点（AP）生成包括信号字段和数据字段的物理层协议数据单元（PPDU），并且由AP将PPDU发送到站。 信号字段包括接收目标指示符和标识符字段。 接收目标指示符指示PPDU的目标是AP还是站。 当接收目标指示符指示PPDU的目标是站时，标识符字段包括标识AP的本地AP标识符。

公开(公告)号：US20140349703A1

公开(公告)日：2014-11-27

申请号：US14452394

申请日：2014-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Dong Youn SEO ,  Ki Jun KIM ,  Joon Kui AHN ,  Min Gyu KIM ,  Jung Hoon LEE ,  Dae Won LEE ,  Suck Chel YANG

IPC: H04W52/14

CPC classification number: H04W52/146 ,  H04L5/0048 ,  H04W52/30 ,  H04W52/34 ,  H04W52/346 ,  H04W52/367 ,  H04W88/10 ,  Y02D70/00

Abstract: A method of transmitting signals including determining, per each of the component carriers, transmission power of at least one channel for simultaneous transmission, in such a way that a total transmission power of the at least one channel does not exceed a maximum transmission power configured for a corresponding component carrier; and checking whether a total transmission power of channels over the multiple component carriers for the simultaneous transmission exceeds a total maximum transmission power configured for the communication apparatus or not. If the total transmission power of the channels exceeds the total maximum transmission power configured for the communication apparatus, transmission power of at least one PUSCH among the channels is adjusted in such a way that an adjusted total transmission power over the multiple component carriers does not exceed the total maximum transmission power.

Abstract translation: 一种传输信号的方法，包括以每个分量载波确定用于同时传输的至少一个信道的传输功率，使得至少一个信道的总发射功率不超过为 相应的分量载体; 并且检查用于同时传输的多个分量载波上的信道的总传输功率是否超过为通信装置配置的总的最大传输功率。 如果通道的总发送功率超过为通信装置配置的总的最大发送功率，则调整通道中的至少一个PUSCH的发送功率，使得多个分量载波上调整的总发送功率不超过 总最大发射功率。

公开(公告)号：US20140293916A1

公开(公告)日：2014-10-02

申请号：US14297483

申请日：2014-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Ill Soo SOHN ,  Yong Ho SEOK ,  Kyoung Young SONG ,  Dae Won LEE ,  Byeong Woo KANG

IPC: H04W72/04 ,  H04W24/10

CPC classification number: H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04W24/10 ,  H04W72/04

Abstract: A method and device for link adaptation in a wireless local area network system, are discussed. The method may include receiving, by a responding station, from a requesting station, a requesting Physical layer Protocol Data Unit (PPDU) for requesting a modulation and coding scheme (MCS) feedback via a plurality of spatial streams, the requesting PPDU including an MCS request (MRQ) field that is set to one to request the responding station to provide the MCS feedback; and transmitting, by the responding station, to the requesting station, the MCS feedback including a recommended MCS field and a recommended stream field. The recommended MCS field indicates a recommended MCS, the recommended stream field indicates a number of at least one recommended spatial stream, and the number of the at least one recommended spatial stream is less than a number of the plurality of spatial streams used for the requesting PPDU.

Abstract translation: 讨论了一种在无线局域网系统中进行链路自适应的方法和装置。 所述方法可以包括由响应站从请求站接收用于经由多个空间流请求调制和编码方案（MCS）反馈的请求物理层协议数据单元（PPDU），所述请求PPDU包括MCS 请求（MRQ）字段设置为1以请求响应站提供MCS反馈; 并且由响应站向请求站发送MCS反馈，其包括推荐的MCS字段和推荐流字段。 推荐的MCS字段指示推荐的MCS，推荐的流字段指示至少一个推荐的空间流的数量，并且至少一个推荐的空间流的数量小于用于请求的多个空间流的数量 PPDU。

公开(公告)号：US20140286327A1

公开(公告)日：2014-09-25

申请号：US14227993

申请日：2014-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Yu Jin NOH ,  Byeong Woo KANG ,  Yong Ho SEOK

IPC: H04L27/26

CPC classification number: H04L69/323 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/28 ,  H04W84/12

Abstract: Methods and devices for transmitting or receiving data in a wireless local area network are provided. The method in one embodiment includes transmitting, by a transmitter, a first long training field (LTF) to a receiver; transmitting, by the transmitter, a very high throughput (VHT)-SIG-A field to the receiver; transmitting, by a transmitter, a second LTF for multiple input multiple output (MIMO) channel estimation to the receiver; transmitting, by the transmitter, a VHT-SIG-B field to the receiver; and transmitting, by the transmitter, a data field to the receiver, wherein the first LTF, the VHT-SIG-A field, the second LTF, the VHT-SIG-B field and the data field are sequentially transmitted, and wherein the second LTF and the data field are mapped to at least one spatial stream based on a mapping matrix but the first LTF and the VHT SIG-A field are not mapped to the at least one spatial stream.

Abstract translation: 提供了用于在无线局域网中发送或接收数据的方法和设备。 一个实施例中的方法包括由发射机向接收机发送第一长训练场（LTF）; 由发射机向接收机发射非常高的吞吐量（VHT）-SIG-A场; 由发射机向所述接收机发送用于多输入多输出（MIMO）信道估计的第二LTF; 由发射机向接收机发送VHT-SIG-B字段; 并且由所述发射机将数据字段发送到所述接收机，其中所述第一LTF，所述VHT-SIG-A字段，所述第二LTF，所述VHT-SIG-B字段和所述数据字段被顺序地发送，并且其中所述第二 基于映射矩阵将LTF和数据字段映射到至少一个空间流，但是第一LTF和VHT SIG-A字段未映射到至少一个空间流。