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US 12,119,970 B2Granted
Technique for transmitting information on midamble in wireless communication system
AssigneeLG Elelctronics Inc.
InventorsDongguk Lim, Jinsoo Choi, Eunsung Park, Insun Jang
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Abstract
One embodiment according to the present specification relates to a technique for transmitting information on a midamble in a wireless LAN (WLAN) system. A transmitting STA may generate a NGV PPDU. The NGV PPDU may include a preamble, a data field and a midamble. The preamble may include information on the midamble. For example, the information on the midamble may include information on the configuration and period of the midamble.
Claims9
A method in a Wireless Local Area Network (WLAN) system, the method performed by a transmitting station (STA) and comprising:
- generating a Next Generation V2X Physical Protocol Data Unit (NGV PPDU),
- wherein a bandwidth of the NGV PPDU is 10 MHz, and a subcarrier spacing of the NGV PPDU is 156.25 kHz,
- wherein the NGV PPDU includes a preamble, a data field contiguous to the preamble, and a midamble contiguous to the data field,
- wherein the preamble includes a legacy long training field (LTF), a legacy signal field, a repeated legacy signal field in which the legacy signal field is repeated, an NGV signal field including control information for the NGV PPDU, a repeated NGV signal field in which the NGV signal field is repeated, and an NGV LTF for channel estimation of the NGV PPDU,
- wherein each of the legacy LTF, the legacy signal field, the repeated legacy signal field, the NGV signal field, and the repeated NGV signal field is contiguous with one another,
- wherein the legacy signal field is configured to be 24 bits, and the NGV signal field is configured to be 24 bits,
- wherein the NGV signal field includes 1-bit information related to a format of the midamble and 2-bit information related to a transmission periodicity of the midamble,
- wherein the 1-bit information is set as one of a first format related to a first LTF sequence or a second format related to a second LTF sequence,
- wherein the first LTF sequence is defined as {1, 0, 1, 0, −1, 0, 1, 0, −1, 0, −1, 0, 1, 0, 1, 0, 1, 0, −1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, −1, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, 1, 0, 1, 0, −1},
- wherein the second LTF sequence is defined as {1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 0, 1, −1, −1, 1, 1, −1, 1, −1, 1, −1, −1, −1, −1, −1, 1, 1, −1, −1, 1, −1, 1, −1, 1, 1, 1, 1, −1, −1},
- wherein a format of the midamble is determined as a same format of the NGV LTF,
- wherein the transmission periodicity of the midamble is determined in a unit of symbols of the data field;
- and
- transmitting the NGV PPDU.
11 more elements
A method in a Wireless Local Area Network (WLAN) system, the method performed by a receiving station (STA) and comprising:
- receiving a Next Generation V2X Physical Protocol Data Unit (NGV PPDU),
- wherein a bandwidth of the NGV PPDU is 10 MHZ, and a subcarrier spacing of the NGV PPDU is 156.25 kHz,
- wherein the NGV PPDU includes a preamble, a data field contiguous to the preamble, and a midamble contiguous to the data field,
- wherein the preamble includes a legacy long training field (LTF), a legacy signal field, a repeated legacy signal field in which the legacy signal field is repeated, an NGV signal field including control information for the NGV PPDU, a repeated NGV signal field in which the NGV signal field is repeated, and an NGV LTF for channel estimation of the NGV PPDU,
- wherein each of the legacy LTF, the legacy signal field, the repeated legacy signal field, the NGV signal field, and the repeated NGV signal field is contiguous with one another,
- wherein the legacy signal field is configured to be 24 bits, and the NGV signal field is configured to be 24 bits,
- wherein the NGV signal field includes 1-bit information related to a format of the midamble and 2-bit information related to a transmission periodicity of the midamble,
- wherein the 1-bit information is set as one of a first format related to a first LTF sequence or a second format related to a second LTF sequence,
- wherein the first LTF sequence is defined as {1, 0, 1, 0, −1, 0, 1, 0, −1, 0, −1, 0, 1, 0, 1, 0, 1, 0, −1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, −1, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, 1, 0, 1, 0, −1},
- wherein the second LTF sequence is defined as {1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 0, 1, −1, −1, 1, 1, −1, 1, −1, 1, −1, −1, −1, −1, −1, 1, 1, −1, −1, 1, −1, 1, −1, 1, 1, 1, 1, −1, −1},
- wherein a format of the midamble is determined as a same format of the NGV LTF,
- wherein the transmission periodicity of the midamble is determined in a unit of symbols of the data field;
- and
- decoding the NGV PPDU based on the 1-bit information related to the format of the midamble and the 2-bit information related to the transmission periodicity of the midamble.
11 more elements
A transmitting station (STA) in a Wireless Local Area Network (WLAN) system, the transmitting STA comprising:
- a transceiver configured to transmit and/or receive a wireless signal;
- and
- a processor coupled to the transceiver,
- wherein the processor is configured to:
- generate a Next Generation V2X Physical Protocol Data Unit (NGV PPDU),
- wherein a bandwidth of the NGV PPDU is 10 MHZ, and a subcarrier spacing of the NGV PPDU is 156.25 kHz,
- wherein the NGV PPDU includes a preamble, a data field contiguous to the preamble, and a midamble contiguous to the data field,
- wherein the preamble includes a legacy long training field (LTF), a legacy signal field, a repeated legacy signal field in which the legacy signal field is repeated, an NGV signal field including control information for the NGV PPDU, a repeated NGV signal field in which the NGV signal field is repeated, and an NGV LTF for channel estimation of the NGV PPDU,
- wherein each of the legacy LTF, the legacy signal field, the repeated legacy signal field, the NGV signal field, and the repeated NGV signal field is contiguous with one another,
- wherein the legacy signal field is configured to be 24 bits, and the NGV signal field is configured to be 24 bits,
- wherein the NGV signal field includes 1-bit information related to a format of the midamble and 2-bit information related to a transmission periodicity of the midamble,
- wherein the 1-bit information is set as one of a first format related to a first LTF sequence or a second format related to a second LTF sequence,
- wherein the first LTF sequence is defined as {1, 0, 1, 0, −1, 0, 1, 0, −1, 0, −1, 0, 1, 0, 1, 0, 1, 0, −1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, −1, 0, −1, 0, 1, 0, −1, 0, −1, 0, −1, 0, 1, 0, 1, 0, −1},
- wherein the second LTF sequence is defined as {1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 1, 1, −1, −1, 1, 1, −1, 1, −1, 1, 1, 1, 1, 0, 1, −1, −1, 1, 1, −1, 1, −1, 1, −1, −1, −1, −1, −1, 1, 1, −1, −1, 1, −1, 1, −1, 1, 1, 1, 1, −1, −1},
- wherein a format of the midamble is determined as a same format of the NGV LTF,
- wherein the transmission periodicity of the midamble is determined in a unit of symbols of the data field;
- and
- transmit the NGV PPDU.
15 more elements
Dependencies are inferred from the claim text.