Wireless communication method and device for wireless communication

Abstract

The invention provides a wireless communication method and equipment for wireless communication. An enhanced long-distance ELR communication scheme based on distributed tone resource units (DRUs) in a wireless local area network (WLAN). An apparatus includes an access point (AP) or a non-AP station (STA) that generates a DRU-based PPDU. The device transmits the PPDU in the ELR communication.

Description

Technical Field

[0001] The present application generally relates to the field of wireless communications, and more specifically, to an enhanced long range (ELR) communication scheme based on a distributed-tone resource unit (DRU) in a wireless local area network (WLAN). Background Art

[0002] Unless otherwise indicated herein, the approaches described in this section are not prior art to the claims listed below and are not admitted to be prior art by inclusion in this section.

[0003] In wireless communications (such as Wi-Fi or WiFi) and WLAN systems that comply with one or more Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards, wireless applications such as wireless video surveillance, wireless video doorbells, and Internet-of-Things (IoT) devices require the use of enhanced long-range (ELR) communication schemes in WLANs. Generally speaking, an access point (AP) can transmit at a higher power than a station (STA), so there is often an imbalance in the downlink (DL) and uplink (UL) ranges. In this regard, the ELR communication scheme can compensate for the imbalance in the DL and UL ranges. In the European Union (EU), Japan, China, and South Korea, the regulated transmit power spectral density is lower than that in the United States, so an ELR communication scheme is also needed to extend the range in these regions / countries with lower transmit power spectral density. In addition, an ELR communication scheme that is superior to the scheme based on IEEE 802.11b is needed for at least the following reasons. First, in WLANs based on the IEEE 802.11 series of standards, the common long-distance solution is based on IEEE 802.11b technology. However, IEEE 802.11b is a single-carrier, complementary code keying (CCK) modulation communication solution invented in 1999. Therefore, long-distance communications based on IEEE 802.11b often suffer from low spectrum efficiency and poor network management. There is a need for methods to provide higher spectrum efficiency, better network management, and longer coverage / higher data rates. Therefore, a solution for a DRU-based ELR communication solution in WLAN is needed. Summary of the invention

[0004] A simplified summary of one or more aspects is presented below to provide a basic understanding of these aspects. This summary is not a comprehensive overview of all intended aspects, and is neither intended to identify key or important elements of all aspects, nor to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that is presented later.

[0005] One objective of the present disclosure is to provide solutions, concepts, designs, techniques, methods and devices related to DRU-based ELR communication solutions in WLAN. It is believed that the embodiments of the various solutions proposed herein can solve or alleviate the above problems.

[0006] According to one embodiment, a method is provided that may involve generating a DRU-based PPDU. The method may also involve transmitting the PPDU in an ELR communication.

[0007] According to another embodiment, a device is provided that may include a transceiver configured for wireless communication and a processor coupled to the transceiver. The processor may generate a DRU-based PPDU. The processor may also transmit the PPDU in an ELR communication.

[0008] It is worth noting that although the description provided in this document may be made in the context of certain wireless access technologies, networks, and network topologies (such as Wi-Fi), the proposed concepts, schemes, and any variants / derivatives thereof may be implemented in other types of wireless access technologies, networks, and network topologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A diagram of an example network environment according to the present disclosure is shown in which various solutions and schemes according to the present disclosure can be implemented.

[0010] Figure 2 A diagram showing an example design according to the teachings of the present invention is shown.

[0011] Figure 3 A diagram showing an example design according to the teachings of the present invention is shown.

[0012] Figure 4 A diagram showing an example design according to the teachings of the present invention is shown.

[0013] Figure 5 A diagram showing an example design according to the teachings of the present invention is shown.

[0014] Figure 6 A diagram showing an example design according to the teachings of the present invention is shown.

[0015] Figure 7 A diagram showing an example design according to the teachings of the present invention is shown.

[0016] Figure 8 A diagram showing an example design according to the teachings of the present invention is shown.

[0017] Fig. 9 A diagram showing an example design according to the teachings of the present invention is shown.

[0018] Fig.10 A diagram showing an example design according to the teachings of the present invention is shown.

[0019] Fig.11 A diagram showing an example design according to the teachings of the present invention is shown.

[0020] Fig.12 A diagram showing an example design according to the teachings of the present invention is shown.

[0021] Fig.13 A block diagram of an example communication system according to the teachings of the present invention is shown.

[0022] Fig.14 A flow chart of an example process according to the present disclosure is shown. DETAILED DESCRIPTION

[0023] Detailed embodiments and implementations of the claimed subject matter are disclosed herein. However, it should be understood that the disclosed embodiments and implementations are merely illustrative embodiments of the claimed subject matter and may be embodied in various forms. The present invention may be embodied in many different forms and should not be construed as being limited to the exemplary embodiments and implementations listed herein. On the contrary, these exemplary embodiments and implementations are intended to make the description of the present invention detailed and complete and to fully convey the scope of the present invention to those skilled in the art. In the following description, details of well-known features and technologies may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.

[0024] Overview

[0025] Implementations according to the present invention relate to various technologies, methods, schemes and / or solutions related to DRU-based ELR communication schemes in WLAN. According to the present invention, many possible solutions can be implemented individually or in combination. That is, although these possible solutions may be described separately below, two or more of these possible solutions can be implemented in one or another combination.

[0026] It is noteworthy that in the present invention, a regular RU (RRU or RU) refers to an RU with continuous tones (e.g., adjacent to each other) and not staggered, interlaced, or otherwise distributed. In addition, a 13-tone regular RU can be interchangeably represented as RU26 (or RRU26), a 52-tone regular RU can be interchangeably represented as RU52 (or RRU52), a 106-tone regular RU can be interchangeably represented as RU106 (or RRU106), a 242-tone regular RU can be interchangeably represented as RU242 (or RRU242), and so on. In addition, an aggregate (26+52) tone regular multi-RU (MRU) can be interchangeably represented as MRU78 (or RMRU78), an aggregate (26+106) tone regular MRU can be interchangeably represented as MRU132 (or RMRU132), and so on. In addition, a distributed tone RU (DRU) refers to an RU having non-contiguous tones (e.g., not immediately adjacent to each other) and staggered, interleaved, or otherwise distributed. Thus, a 13-tone distributed tone RU may be interchangeably represented as DRU26, a 52-tone distributed tone RU may be interchangeably represented as DRU52, a 106-tone distributed tone RU may be interchangeably represented as DRU106, a 242-tone distributed tone RU may be interchangeably represented as DRU242, a 484-tone distributed tone RU may be interchangeably represented as DRU484, a 996-tone distributed tone RU may be interchangeably represented as DRU996, a 2x996-tone distributed tone RU may be interchangeably represented as DRU2x996, and so on.

[0027] It is also worth noting that in the present invention, a bandwidth of 20 MHz may be interchangeably represented as BW20 or BW20M, a bandwidth of 40 MHz may be interchangeably represented as BW40 or BW40M, a bandwidth of 80 MHz may be interchangeably represented as BW80 or BW80M, a bandwidth of 160 MHz may be interchangeably represented as BW160 or BW160M, a bandwidth of 240 MHz may be interchangeably represented as BW240 or BW240M, a bandwidth of 320 MHz may be interchangeably represented as BW240 or BW240M, A bandwidth of 480 MHz may be interchangeably represented as BW320 or BW320M, a bandwidth of 500 MHz may be interchangeably represented as BW500 or BW500M, a bandwidth of 520 MHz may be interchangeably represented as BW520 or BW520M, a bandwidth of 540 MHz may be interchangeably represented as BW540 or BW540M, and a bandwidth of 640 MHz may be interchangeably represented as BW640 or BW640M.

[0028] Figure 1 An example network environment 100 is shown in which various solutions and schemes according to the present invention may be implemented. Figures 2 to 14Examples of various proposed solutions implemented in the network environment 100 according to the present invention are shown. The following description of various proposed solutions is based on reference Figures 1 to 14 Provided.

[0029] refer to Figure 1 , the network environment 100 may involve at least one workstation STA 110 communicating wirelessly with STA 120. Either of STA 110 and STA 120 may be an access point (AP) STA, or either of STA 110 and STA 120 may operate as a non-AP STA. In some cases, STA 110 and STA 120 may be associated with a basic service set (BSS) according to one or more IEEE 802.11 standards (e.g., IEEE 802.11be and future standards). Each STA 110 and STA 120 may be configured to communicate with each other according to the various proposed schemes described below using a DRU-based ELR communication scheme in a WLAN. It is worth noting that although various proposed schemes may be described separately below, some or all of the proposed schemes may be used in conjunction or otherwise implemented in conjunction in an actual implementation. Of course, each proposed scheme may also be used or implemented separately or separately.

[0030] In different regions, regulations impose different power spectral density (PSD) limits on the 2.4 GHz, 5 GHz, and 6 GHz bands. The PSD limits are defined per MHz and per STA. In order to overcome the PSD limitations and increase the transmit power, according to various proposed schemes of the present invention, the tones of small-sized resource units (RUs) can be distributed over a wide bandwidth. Therefore, the tones of each STA may become discontinuous, so each tone can be transmitted at a higher power. For a STA (e.g., STA 110) to transmit a DRU, it can transmit at a higher power than transmitting a conventional RU (involving transmission on a set of continuous tones).

[0031] Figure 2 An example design 200 according to the present invention is shown. The design 200 may involve a DRU in a 20 MHz bandwidth. Under the proposed scheme, DRUs may be defined at different bandwidths. Figure 2 The table in shows designs for 13-tone, 52-tone, and 106-tone DRU types over a 20 MHz bandwidth. Another design may involve simply distributing the tones evenly over a 20 MHz channel. For example, when distributing the tones of a DRU, a STA (e.g., STA 110) may select only one tone to transmit among N consecutive tones, where N = 2, 4, 6, ...

[0032] Figure 3 An example design 300 proposed according to the present invention is shown. Design 300 may involve a distributed tone long training field (LTF) for a 20 MHz bandwidth. Under the proposed scheme, in order to reduce the peak-to-average power ratio (PAPR), a new DRU-LTF sequence may be defined, such as Figure 3 Each STA may only transmit the tones in the DRU-LTF sequence that are mapped to the tones occupied by the DRU used by the STA. Figure 3 The example shown might be a DRU-LTF design for 20 MHz bandwidth transmission.

[0033] Figure 4 An example design 400 proposed in accordance with the present invention is shown. Design 400 may involve an ELR single user (SU) physical layer protocol data unit (PPDU) design. Under the proposed scheme, the ELR PPDU may use orthogonal frequency division multiplexing (OFDM) modulation in the preamble signal field and its data portion. Figure 4 ,Each ELR PPDU may consist of multiple functional blocks, including: spoofing preamble, ELR preamble and ELR data.

[0034] Figure 5An example design 500 proposed in accordance with the present invention is shown. Design 500 may relate to a first ELR SUPPDU design. In design 500, the ELR short training field (ELR-STF) and the ELR long training field (ELR-LTF) may be down-converted versions of the legacy short training field (L-STF) and the legacy long training field (L-LTF) from IEEE 802.11a / n / ac, respectively. The ELR-STF may be down-converted by 4 times, 8 times, or 10 times from the 20MHz L-STF sequence. The ELR-LTF may be down-converted by 4 times, 8 times, or 10 times from the 20MHz L-LTF sequence. The ELR-STF and ELR-LTF may be replicated 4 times, 8 times, or 10 times in the frequency domain to enhance the transmission range. In design 500, the ELR signal (ELR-SIG) may be replicated in the frequency domain to carry information required for ELR data, such as modulation and coding scheme (MCS), coding, etc. EHT-STF may be used for ELR preamble. DRU-LTF may be used for channel estimation of DRU. ELR data may be transmitted via a DRU with a fixed size and tone plan, for example, it may be a 13-tone DRU, a 52-tone DRU, or other size DRU.

[0035] Figure 6 An example design 600 proposed in accordance with the present invention is shown. Design 600 may relate to a second ELR SUPPDU design. In design 600, the ELR-STF may be a Golay sequence or other 20 MHz down-converted frequency domain replication sequence for packet detection and time synchronization. The DRU-LTF may be used for channel estimation of distributed tone RUs. The DRU-SIG may use a fixed DRU with fixed modulation, and the DRU-SIG may be used to carry information required for ELR data, such as MCS, coding, etc. The ELR data may be transmitted via a DRU with a fixed size and tone plan, for example, it may be a 13-tone DRU, a 52-tone DRU, or a DRU of other sizes.

[0036] Figure 7An example design 700 proposed in accordance with the present invention is shown. Design 700 may relate to a variation of the second ELR SUPPDU design. In design 700, the universal signal (U-SIG) field may be replaced by an ELR signature symbol for ELR format detection. The ELR signature symbol may be similar to the U-SIG but have a predetermined sequence. The DRU-SIG may use a fixed DRU with fixed modulation. The DRU-SIG may be used to carry information required for ELR data, such as MCS, encoding, etc. The ELR data may be transmitted via a DRU with a fixed size and tone plan, for example, it may be a 13-tone DRU, a 52-tone DRU, or a DRU of other sizes.

[0037] Figure 8 An example design 800 is shown in accordance with the present invention. Design 800 may relate to a third ELR SU PPDU design. In design 800, if the ELR SU uses only one fixed DRU and one fixed modulation, the ELR-SIG may be removed. The ELR-STF may be a Golay sequence or other 20 MHz sequence for packet detection and time synchronization. The DRU-LTF may be used for channel estimation of distributed tone RUs. ELR data may be transmitted through the DRUs. If the ELR SU uses only a few fixed DRUs and modulations, the ELR-SIG may be removed and the DRU and modulation indications may be carried by multiple ELR-STFs. For example, ELR-STF-A may indicate a fixed 13-tone RU with a first MCS (e.g., MCS0), and ELR-STF-B may indicate a fixed 13-tone RU with a second MCS (e.g., MCS1).

[0038] Fig. 9 An example design 900 is shown in accordance with the present invention. Design 900 may relate to a variation of the third ELR SUPPDU design. In design 900, the U-SIG may be replaced by an ELR signature symbol for ELR format detection, and the ELR signature symbol may be similar to the U-SIG but with a predetermined sequence. The ELR SU may use only one fixed DRU, and the ELR SIGNAL field may be transmitted using the lowest MCS of the ELR. ELR data may be transmitted after the ELR SIGNAL field. Fixed DRU (including ELR signal and data).

[0039] Fig.10An example design 1000 is shown in accordance with the present invention. Design 1000 may involve DRU-LTF repetition to enhance channel estimation. In general, channel estimation for ELR PPDUs is challenging. For example, for ELR, the received signal-to-noise ratio (SNR) is often very low, and obtaining accurate channel estimation at low SNRs is challenging. In addition, for distributed tone LTFs, applying smoothing techniques to enhance channel estimation is often more difficult. In design 1000, the DRU-LTF may be repeated multiple times in the time domain, such as Fig.10 As shown, to help enhance channel estimation.

[0040] According to the proposed scheme of the present invention, a trigger-based (TB) physical layer protocol data unit (PPDU) can be modified to include a distributed tone resource unit (DRU) to enhance the transmission range. For example, an access point (AP, such as STA 120) can send a trigger signal to an enhanced long range (ELR) STA to trigger the ELR TB PPDU. Each ELR STA can use the DRU allocated in the received trigger signal to send the ELR TB PPDU. The AP can also send an uplink orthogonal frequency division multiple access (OFDMA)-based random access (UORA) trigger signal to trigger the ELR TB PPDU. Each ELR STA can use a randomly selected DRU to send the ELR TB PPDU.

[0041] Fig.11 An example design 1100 according to the present invention is shown. Design 1100 may relate to a first ELR TB PPDU design. In design 1100, the ELR TB PPDU may include an ELR TB preamble, which may include L-STF, L-LTF, L-SIG, repeated legacy signal (RL-SIG), U-SIG, ultra-high reliability long training field (UHR-LTF), and DRU-LTF. The UHR-LTF may be the same as the EHT-LTF designed in IEEE 802.11be. The DRU-LTF may be a time domain repeated version of the DRU-LTF.

[0042] Fig.12 Another example design 1200 according to the present invention is shown. Design 1200 may relate to a second ELR TB PPDU design. In design 1200, the ELR TB PPDU may include an ELR TB preamble, which may include L-STF, L-LTF, L-SIG, UHR-LTF, and DRU-LTF. The UHR-LTF may be the same as the EHT-LTF designed in IEEE 802.11be. The DRU-LTF may be a time domain repeated version of the DRU-LTF.

[0043] Example Implementation

[0044] Fig.13 An example system 1300 is shown, which includes at least one example device 1310 and one example device 1320. Each of the devices 1310 and 1320 can perform various functions to implement the schemes, techniques, processes and methods described herein related to the DRU-based ELR communication scheme, including the various proposed designs, concepts, schemes, systems and methods described above and the processes described below. For example, the device 1310 can be implemented in the STA 110, and the device 1320 can be implemented in the STA 120, and vice versa.

[0045] Each of device 1310 and device 1320 may be part of an electronic device, which may be a STA or an AP, such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. When implemented in a STA, each of device 1310 and device 1320 may be implemented in a smart phone, a smart watch, a personal digital assistant, a digital camera, or a computing device such as a tablet or a laptop. Each of device 1310 and device 1320 may also be part of a machine-type device, which may be an Internet of Things (IoT) device, such as a fixed or stationary device, a home device, a wired communication device, or a computing device. For example, each of device 1310 and device 1320 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. When implemented in or as a network device, device 1310 and / or device 1320 may be implemented in a network node, such as an AP in a WLAN.

[0046] In some embodiments, each of the devices 1310 and 1320 may be implemented in the form of one or more integrated circuit (IC) chips, such as but not limited to one or more single-core processors, one or more multi-core processors, one or more reduced instruction set computing (RISC) processors, or one or more complex instruction set computing (CISC) processors. In the above various schemes, each of the devices 1310 and 1320 may be implemented in or as a STA or an AP. Each of the devices 1310 and 1320 may include Fig.13 1310 and 1320. Each of the devices 1310 and 1320 may also include one or more other components not related to the proposed solution of the present disclosure (e.g., an internal power supply, a display device, and / or a user interface device), and therefore, for the sake of brevity and simplicity, these components are not shown in the figure. Fig.13 , nor described below.

[0047] In one aspect, each of processor 1312 and processor 1322 can be implemented in the form of one or more single-core processors, one or more multi-core processors, one or more RISC processors, or one or more CISC processors. That is, although the singular term "processor" is used here to refer to processor 1312 and processor 1322, in some implementations, each of processor 1312 and processor 1322 can include multiple processors, and in other implementations can include a single processor, consistent with the content of the present disclosure. In another aspect, each of processor 1312 and processor 1322 can be implemented in the form of hardware (and optional firmware), including, for example, but not limited to, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and / or one or more varactors, and these electronic components are configured and arranged to achieve the specific purposes of the present disclosure. In other words, in at least some implementations, each of processor 1312 and processor 1322 is a dedicated machine specially designed, arranged and configured to perform specific tasks, including those tasks related to the DRU-based ELR communication scheme in WLAN, consistent with various implementations of the present disclosure.

[0048] In some implementations, the device 1310 may also include a transceiver 1316 coupled to the processor 1312. The transceiver 1316 may include a transmitter capable of wireless transmission and a receiver capable of wirelessly receiving data. In some implementations, the device 1320 may also include a transceiver 1326 coupled to the processor 1322. The transceiver 1326 may include a transmitter capable of wireless transmission and a receiver capable of wirelessly receiving data. It is worth noting that although the transceiver 1316 and the transceiver 1326 are shown as external and independent of the processor 1312 and the processor 1322, respectively, in some implementations, the transceiver 1316 may be an integral part of the processor 1312 as a system on a chip (SoC), and the transceiver 1326 may be an integral part of the processor 1322 as a SoC.

[0049] In some implementations, the device 1310 may further include a memory 1314 coupled to the processor 1312 and accessible by the processor 1312 and storing data. In some implementations, the device 1320 may further include a memory 1324 coupled to the processor 1322 and accessible by the processor 1322 and storing data. Each of the memory 1314 and the memory 1324 may include a random access memory (RAM), such as a dynamic RAM (DRAM), a static RAM (SRAM), a thyristor RAM (T-RAM) and / or a zero-capacitance RAM (Z-RAM). Alternatively, each of the memory 1314 and the memory 1324 may include a read-only memory (ROM), such as a mask ROM, a programmable ROM (PROM), an erasable programmable ROM (EPROM) and / or an electrically erasable programmable ROM (EEPROM). Alternatively, each of memory 1314 and memory 1324 may include a non-volatile random access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM), magnetoresistive RAM (MRAM), and / or phase change memory.

[0050] Each of the devices 1310 and 1320 may be a communication entity capable of communicating with each other using various proposed schemes of the present disclosure. For illustrative purposes and without limitation, a description of the capabilities of the device 1310 as STA 110 and the device 1320 as STA 120 is provided below in the context of process 1400. It is worth noting that although a detailed description of the capabilities, functions and / or technical features of the device 1310 is provided below, the same description may also be applied to the device 1320, although a detailed description thereof is not provided for the sake of brevity. It is also worth noting that although the example implementation described below is provided in the context of a WLAN, the same implementation may also be implemented in other types of networks.

[0051] Example Process

[0052] Fig.14 An example process 1400 according to an implementation of the present invention is shown. Process 1400 may represent one aspect of implementing the various proposed designs, concepts, schemes, systems and methods described above. More specifically, process 1400 may represent one aspect of the proposed concepts and schemes of the present disclosure regarding DRU-based ELR communication schemes in WLANs. Process 1400 may include one or more operations, actions or functions as shown in blocks 1410 and 1420. Although shown as discrete blocks, the various blocks of process 1400 may be divided into more blocks, combined into fewer blocks or eliminated, depending on the desired implementation. In addition, the blocks / sub-blocks of process 1400 may be arranged in Fig.141300. The process 1400 may be performed in the order shown in, or in a different order. In addition, one or more blocks / sub-blocks of process 1400 may be performed repeatedly or iteratively. Process 1400 may be implemented by or in device 1310 and device 1320 and any variants thereof. For illustrative purposes only and without limiting the scope, process 1400 is described below in the context of a wireless network (e.g., a WLAN in network environment 100) in which device 1310 is implemented as or as STA 110 and device 1320 is implemented as or as STA 120, in compliance with one or more IEEE 802.11 standards. It is noteworthy that although the description of process 1400 is provided below in the context of device 1310 (implemented as or as a non-AP STA) performing various operations, the same description also applies to device 1320 (implemented as or as an AP STA). Process 1400 may begin at block 1410.

[0053] At 1410, process 1400 may involve processor 1312 of device 1310 (eg, STA 110) generating a DRU-based PPDU. Process 1400 may proceed from 1410 to 1420.

[0054] At 1420, process 1400 may involve processor 1312 transmitting the PPDU in ELR communication with device 1320 via transceiver 1316.

[0055] In some implementations, the PPDU may include multiple functional blocks, such as a spoofed preamble, an ELR preamble, and ELR data.

[0056] In certain implementations, when transmitting a PPDU, process 1400 may involve processor 1312 transmitting ELR data via a DRU having a fixed size and tone schedule.

[0057] In certain implementations, the DRU may include a 26-tone DRU, a 52-tone DRU, or a 106-tone DRU.

[0058] In certain implementations, the ELR preamble may include a DRU-LTF sequence.

[0059] In certain implementations, process 1400 may involve processor 1312 replicating the DRU-LTF multiple times in the time domain while transmitting the PPDU.

[0060] In certain implementations, the ELR preamble may further include an ELR-STF, an ELR-LTF, and an ELR-SIG.

[0061] In certain implementations, each of the ELR-STF, ELR-LTF, and ELR-SIG may be replicated in the frequency domain.

[0062] In certain implementations, the ELR preamble may further include using a DRU with fixed modulation and carrying a DRU-SIG that carries information related to the ELR data.

[0063] In certain implementations, the spoofed preamble may include a series of ELR signature symbols indicating that the PPDU is an ELR PPDU.

[0064] In some implementations, the PPDU may include a TB PPDU including an ELR TB PPDU preamble and an ELR data. In some implementations, when transmitting the PPDU, the process 1400 may involve the processor 1312 transmitting the ELR TB PPDU using an assigned DRU or a randomly selected DRU.

[0065] Additional Notes

[0066] The subject matter described herein sometimes shows different components contained in different components or connected to different other components. It should be understood that these depicted architectures are only examples, and many other architectures can actually be implemented to achieve the same function. Conceptually, any arrangement of components to achieve the same function can be effectively "associated" to achieve the desired function. Therefore, any two components combined to achieve a specific function herein can be considered to be "associated" together to achieve the desired function, regardless of the architecture or intermediate components. Similarly, any two components so associated can also be considered to be "operably connected" or "operably coupled" together to achieve the desired function, and any two components that can be so associated can also be considered to be "operably coupled" together to achieve the desired function. Specific examples of operable coupling include, but are not limited to, physically compatible and / or physically interacting components and / or wirelessly interacting components and / or logically interacting components.

[0067] Furthermore, with respect to almost any plural and / or singular terms used herein, one having technical skills can translate from the plural to the singular and / or from the singular to the plural, depending on the context and / or application. For clarity, various singular / plural permutations may be explicitly listed herein.

[0068] Furthermore, those skilled in the art will understand that, in general, the terms used herein, particularly in the appended claims, such as the bodies of the appended claims, are generally intended to be "open" terms, e.g., the term "comprising" should be interpreted as "including but not limited to", the term "having" should be interpreted as "having at least", the term "includes" should be interpreted as "including but not limited to", etc. Those skilled in the art will further understand that if a specific number is intended to be specified in an introduced claim recitation, such intent will be explicitly stated in the claim, and in the absence of such a statement, such intent is absent. For example, to aid understanding, the following appended claims may contain the use of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of these phrases should not be interpreted as implying that a claim recitation introduced by the indefinite article "a" or "an" limits any particular claim containing such introduced claim recitation to only contain one such recitation, even if the same claim contains the introductory phrases "one or more" or "at least one" and an indefinite article such as "a" or "an", e.g., "a" and / or "an" should be interpreted as "at least one" or "one or more"; the same applies to the case where a claim recitation is introduced using a definite article. Furthermore, even if a specific number of an introduced claim recitation is explicitly stated, one skilled in the art will recognize that such a statement should be interpreted as at least the stated number, e.g., the mere statement "two recitations," without other modifiers, means at least two recitations, or two or more recitations. Furthermore, where a convention similar to "at least one of A, B, and C, etc." is used, such a construction is generally intended to be a convention understood by one skilled in the art, e.g., "a system having at least one of A, B, and C" would include, but is not limited to, a system having only A, a system having only B, a system having only C, a system having A and B together, a system having A and C together, a system having B and C together, and / or a system having A, B, and C together, etc. Where a convention similar to "at least one of A, B, or C, etc." is used, such a construction is generally intended to be a convention understood by one skilled in the art, e.g., "a system having at least one of A, B, or C" would include, but is not limited to, a system having only A, a system having only B, a system having only C, a system having A and B together, a system having A and C together, a system having B and C together, and / or a system having A, B, and C together, etc. Those skilled in the art will further appreciate that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to include one, either, or both of the terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."

[0069] It can be seen from the above that various embodiments of the present disclosure have been described here for illustrative purposes, and various modifications can be made without departing from the scope and spirit of the present disclosure. Therefore, the various embodiments disclosed herein are not intended to be limiting, and the true scope and spirit are indicated by the claims.

Claims

1. A wireless communication method for a user equipment UE, characterized in that: include: A processor of the device generates a physical layer protocol data unit PPDU based on a distributed tone resource unit DRU; as well as The PPDU is transmitted by the processor in enhanced long range ELR communication.

2. The method according to claim 1, characterized in that The PPDU includes multiple functional blocks, and the functional blocks include a spoofed preamble, an ELR preamble and ELR data.

3. The method according to claim 2, characterized in that The transmission of the PPDU includes transmitting the ELR data via a DRU having a fixed size and tone plan.

4. The method according to claim 3, characterized in that The DRU includes a 26-tone DRU, a 52-tone DRU, or a 106-tone DRU.

5. The method according to claim 2, characterized in that The ELR preamble code includes a DRU long training field DRU-LTF sequence.

6. The method according to claim 5, characterized in that The transmission of the PPDU includes multiple replications of the DRU-LTF in the time domain.

7. The method according to claim 5, characterized in that The ELR preamble code further includes an ELR short training field ELR-STF, an ELR long training field ELR-LTF and an ELR signal field ELR-SIG.

8. The method according to claim 7, characterized in that Each of the ELR-STF, the ELR-LTF and the ELR-SIG is replicated in the frequency domain.

9. The method according to claim 5, characterized in that The ELR preamble further includes a DRU signal field DRU-SIG that uses a DRU with fixed modulation and carries information related to the ELR data.

10. The method according to claim 5, characterized in that The spoofed preamble includes a series of ELR signature symbols indicating that the PPDU is an ELRPPDU.

11. The method according to claim 1, characterized in that The PPDU includes a TBPPDU triggered based on ELR, and the TB PPDU includes an ELR TB PPDU preamble and ELR data.

12. The method according to claim 11, characterized in that The transmission of the PPDU includes using an assigned DRU or a randomly selected DRU to transmit the ELR TB PPDU.

13. A user equipment, characterized in that: include: a transceiver configured for wireless communication; as well as A processor coupled to the transceiver, the processor configured to perform operations including: Generate a physical layer protocol data unit PPDU based on a distributed tone resource unit DRU; as well as The PPDU is transmitted by the transceiver in an enhanced long range ELR communication.

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