Signaling designs for new modulation and coding schemes in next-generation wireless communications
The proposed signaling designs for new MCSs in Wi-Fi 8 enhance throughput and reliability by using 5-bit indications in MCS tables, addressing the lack of defined methods in IEEE specifications and achieving improved performance in wireless communications.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-04-16
AI Technical Summary
There is a need for signaling methods to indicate new modulation and coding schemes (MCSs) in next-generation wireless communications, such as Wi-Fi 8, to improve throughput and reliability, as these methods have not been defined in IEEE specifications.
Proposed signaling designs for new MCSs using 5-bit indications in MCS tables that include combinations of QPSK, 16QAM, and 256QAM with code rates of 2/3 and 5/6, enhancing throughput by 5% to 30% with low complexity.
The proposed signaling methods improve throughput by 5% to 30% in various wireless communication scenarios with low complexity, addressing the lack of defined signaling for new MCSs in IEEE 802.11bn.
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Figure CN2025126913_16042026_PF_FP_ABST
Abstract
Description
SIGNALING DESIGNS FOR NEW MODULATION AND CODING SCHEMES IN NEXT-GENERATION WIRELESS COMMUNICATIONSCROSS REFERENCE TO RELATED PATENT APPLICATION
[0001] The present disclosure is part of a non-provisional patent application claiming the priority benefit of U.S. Provisional Patent Application No. 63 / 706,083 filed 11 October 2024, the content of which herein being incorporated by reference in its entirety.TECHNICAL FIELD
[0002] The present disclosure is generally related to wireless communications and, more particularly, to signaling designs for new modulation and coding schemes (MCSs) in next-generation wireless communications.BACKGROUND
[0003] Unless otherwise indicated herein, approaches described in this section are not prior art to the claims listed below and are not admitted as prior art by inclusion in this section.
[0004] In wireless communications, such as Wi-Fi (or WiFi) in wireless local area network (WLAN) systems in accordance with the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards, new MCSs have been proposed for next-generation Wi-Fi, such as Wi-Fi 8 in accordance with IEEE 802.11bn (also known as Ultra-High-Reliability (UHR) ) , for example, by using some of the unused possible combinations of modulations and coding rates to achieve higher throughput, better reliability, better unequal modulation (UEQM) performance, and more accurate link adaptation. However, at the time of the present disclosure, signaling methods to indicate the new MCSs to enable Wi-Fi operations using the new MCSs have yet to be defined or otherwise specified in the IEEE specification. Therefore, there is a need for a solution of signaling designs for new MCSs in next-generation wireless communications.SUMMARY
[0005] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits and advantages of the novel and non-obvious techniques described herein. Select implementations are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
[0006] An objective of the present disclosure is to provide schemes, concepts, designs, techniques, methods and apparatuses pertaining to signaling designs for new MCSs in next-generation wireless communications. It is believed that implementations of various schemes proposed herein may address or otherwise alleviate the aforementioned issues. For instance, various proposed schemes in accordance with the present disclosure may provide signaling methods for the MCS combinations of {quadrature phase-shift keying (QPSK) , 16 quadrature amplitude modulation (16QAM) , 256 quadrature amplitude modulation (256QAM) } +code rate (R) = 2 / 3 and 16QAM + R = 5 / 6, as new MCSs for IEEE 802.11bn, which may improve throughput by about 5%~ 30%for most scenarios and with low complexity in implementation.
[0007] In one aspect, a method may involve generating a signal and transmitting the signal in a wireless communication. In transmitting the signal, the method may involve transmitting the signal with an indication of a MCS used in transmitting the signal. The indication, with a total of 5 bits, may pertain to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.
[0008] In another aspect, a method may involve receiving a signal in a wireless communication and then processing the signal. In receiving the signal, the method may involve receiving the signal with an indication of a MCS used in transmitting the signal. The indication, with a total of 5 bits, may pertain to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.
[0009] In another aspect, an apparatus may include a transceiver configured to communicate wirelessly and a processor coupled to the transceiver. The processor may generate a signal and transmit the signal in a wireless communication. In transmitting the signal, the processor may transmit the signal with an indication of a MCS used in transmitting the signal. The indication, with a total of 5 bits, may pertain to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.
[0010] It is noteworthy that, although description provided herein may be in the context of certain radio access technologies, networks and network topologies such as, Wi-Fi, the proposed concepts, schemes and any variation (s) / derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies such as, for example and without limitation, Bluetooth, ZigBee, 5th Generation (5G) / New Radio (NR) , Long-Term Evolution (LTE) , LTE-Advanced, LTE-Advanced Pro, Internet-of-Things (IoT) , Industrial IoT (IIoT) and narrowband IoT (NB-IoT) . Thus, the scope of the present disclosure is not limited to the examples described herein.BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate implementations of the disclosure and, together with the description, serve to explain the principles of the disclosure. It is appreciable that the drawings are not necessarily in scale as some components may be shown to be out of proportion than the size in actual implementation to clearly illustrate the concept of the present disclosure.
[0012] FIG. 1 is a diagram of an example network environment in which various solutions and schemes in accordance with the present disclosure may be implemented.
[0013] FIG. 2 is a diagram of an example design under a proposed scheme in accordance with the present disclosure.
[0014] FIG. 3 is a diagram of an example design under a proposed scheme in accordance with the present disclosure.
[0015] FIG. 4 is a diagram of an example design under a proposed scheme in accordance with the present disclosure.
[0016] FIG. 5 is a diagram of an example design under a proposed scheme in accordance with the present disclosure.
[0017] FIG. 6 is a block diagram of an example communication system under a proposed scheme in accordance with the present disclosure.
[0018] FIG. 7 is a flowchart of an example process under a proposed scheme in accordance with the present disclosure.
[0019] FIG. 8 is a flowchart of an example process under a proposed scheme in accordance with the present disclosure. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0020] Detailed embodiments and implementations of the claimed subject matters are disclosed herein. However, it shall be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matters which may be embodied in various forms. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that description of the present disclosure is thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. In the description below, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations. Overview
[0021] Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and / or solutions pertaining to signaling designs for new MCSs in next-generation wireless communications. According to the present disclosure, a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
[0022] FIG. 1 illustrates an example network environment 100 in which various solutions and schemes in accordance with the present disclosure may be implemented. FIG. 2 ~ FIG. 8 illustrate examples of implementation of various proposed schemes in network environment 100 in accordance with the present disclosure. The following description of various proposed schemes is provided with reference to FIG. 1 ~ FIG. 8.
[0023] Referring to part (A) of FIG. 1, network environment 100 may involve at least a station (STA) 110 communicating wirelessly with a STA 120. Either of STA 110 and STA 120 may function as an access point (AP) STA or, alternatively, a non-AP STA. In some cases, STA 110 and STA 120 may be associated with a basic service set (BSS) in accordance with one or more IEEE 802.11 standards (e.g., IEEE 802.11bn and future-developed standards) . Each of STA 110 and STA 120 may be configured to communicate with each other by utilizing the signaling designs for new MCSs in next-generation wireless communications in accordance with various proposed schemes described below. It is noteworthy that, while the various proposed schemes may be individually or separately described below, in actual implementations some or all of the proposed schemes may be utilized or otherwise implemented jointly. Of course, each of the proposed schemes may be utilized or otherwise implemented individually or separately.
[0024] FIG. 2 illustrates an example design 200 under a proposed scheme in accordance with the present disclosure. Design 200 may pertain to a first option (Option-1) of an MCS table design with respect to MCS signaling / indication. Under the proposed scheme, a total of 5 bits may be utilized for MCS indication. That is, with 5 bits, the value of UHR-MCS index may range from 0 to 31 (e.g., MCS0 ~ MCS31) . FIG. 2 shows an MCS table listing various MCSs in an ascending order of the UHR-MCS index value. Under the proposed scheme, existing sixteen MCS index values, namely MCS0 ~ MCS15, may be kept the same as in IEEE 802.11be (also known as Extremely-High-Throughput (EHT) ) , with the addition of four new MCSs assigned to MCS index values of MCS16 ~ MCS19, with remaining entries in the table being reserved. Referring to the table in FIG. 2, the four new MCSs may include {QPSK, 16QAM, 256QAM} + code rate of R = 2 / 3, as well as 16QAM + code rate R = 5 / 6. In the table shown in FIG. 2, among the various modulations, other than BSPK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM and 4096QAM, there may also be BPSK-dual carrier modulation (BPSK-DCM) . For each modulation, the table also shows the corresponding number of bits per subcarrier per spatial stream (Nbpscs) .
[0025] FIG. 3 illustrates an example design 300 under a proposed scheme in accordance with the present disclosure. Design 300 may pertain to a second option (Option-2) of an MCS table design with respect to MCS signaling / indication. Under the proposed scheme, a total of 5 bits may be utilized for MCS indication. That is, with 5 bits, the value of UHR MCS index may range from 0 to 31 (e.g., MCS0 ~ MCS31) . FIG. 3 shows an MCS table listing various MCSs in an ascending order of the UHR-MCS index value. Under the proposed scheme, four new MCSs may be mingled with existing sixteen MCS index values as specified in IEEE 802.11be to result in an reordered listing of twenty MCSs, namely MCS0 ~ MCS19, with remaining entries in the table being reserved. Referring to the table in FIG. 3, the four new MCSs may be assigned to UHR-MCS index values 2, 5, 7 and 11, and may include {QPSK, 16QAM, 256QAM} + code rate of R = 2 / 3, as well as 16QAM + code rate R = 5 / 6. In the table shown in FIG. 3, among the various modulations, other than BSPK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM and 4096QAM, there may also be BPSK-DCM. For each modulation, the table also shows the corresponding Nbpscs.
[0026] FIG. 4 illustrates an example design 400 under a proposed scheme in accordance with the present disclosure. Design 400 may pertain to a third option (Option-3) of an MCS table design with respect to MCS signaling / indication. Under the proposed scheme, a total of 5 bits may be utilized for MCS indication. That is, with 5 bits, the value of UHR MCS index may range from 0 to 31 (e.g., MCS0 ~ MCS31) . FIG. 4 shows an MCS table listing various MCSs in an ascending order of the UHR-MCS index value. Under the proposed scheme, existing sixteen MCS index values, namely MCS0 ~ MCS15, may be kept the same as in IEEE 802.11be, with the addition of four new MCSs assigned to MCS index values of MCS17, MCS19, MCS20 and MCS23, with other entries in the table being reserved. Referring to the table in FIG. 4, the four new MCSs may be assigned to UHR-MCS index values 17, 19, 20 and 23, and may include {QPSK, 16QAM, 256QAM} + code rate of R = 2 / 3, as well as 16QAM + code rate R = 5 / 6. In the table shown in FIG. 4, among the various modulations, other than BSPK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM and 4096QAM, there may also be BPSK-DCM. For each modulation, the table also shows the corresponding Nbpscs.
[0027] Under the proposed scheme, since QPSK + R = 2 / 3 is right after MCS1 in terms of spectral efficiency, the four least significant bits (LSBs) , bits 3: 0 may be kept the same as MCS1, with the most significant bit (MSB) , bit 4, set to 1. Accordingly, the MCS index value for the new MCS of QPSK + R of 2 / 3 = 16 + 1 = 17. Similarly, for 16QAM + R = 2 / 3, the four LSBs, bits 3: 0, may be kept the same as MCS3, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of 16QAM + R of 2 / 3 = 16 + 3 = 19. Moreover, for 16QAM + R = 5 / 6, the four LSBs, bits 3: 0, may be kept the same as MCS4, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of 16QAM + R of 5 / 6 = 16 + 4 = 20. Furthermore, for 256QAM + R = 2 / 3, the four LSBs, bits 3: 0, may be kept the same as MCS7, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of 256QAM + R of 2 / 3 = 16 + 7 = 23.
[0028] FIG. 5 illustrates an example design 500 under a proposed scheme in accordance with the present disclosure. Design 500 may pertain to a fourth option (Option-4) of an MCS table design with respect to MCS signaling / indication. Under the proposed scheme, a total of 5 bits may be utilized for MCS indication. That is, with 5 bits, the value of UHR MCS index may range from 0 to 31 (e.g., MCS0 ~ MCS31) .
[0029] It is noteworthy that, in IEEE 802.11bn, UEQM on different spatial streams may be supported and, for the same code rate, the spatial stream may be assigned respective (and different) QAM levels. Moreover, for a given code rate, the existing MCS index in IEEE 802.11be (also known as EHT) has a desirable pattern to indicate which QAM order is used. For instance, for R = 3 / 4, the MCS index values are 2, 4, 6, 8, 10, 12, and so on, as continuous even numbers of MCS index values (with index value increasing by a step size of 2) , are used to indicate QAM order from QPSK, 16QAM, 64 quadrature amplitude modulation (64QAM) , 256QAM, 1024 quadrature amplitude modulation (1024QAM) , and 4096 quadrature amplitude modulation (4096QAM) . Similarly, for R = 5 / 6, the MCS index values are 7, 9, 11, 13, and so on, as continuous odd numbers of MCS index values (with index value increasing by a step size of 2) , are used to indicate QAM order increasing from 64QAM, 256QAM, 1024QAM to 4096QAM. For each modulation, the table in FIG. 5 also shows the corresponding value of bit 4 (or the MSB) of the MCS index value as well as the decimal value of bits 3: 0 (or the four LSBs) of the MCS index value.
[0030] Under the proposed scheme, for code rate R = 5 / 6, one new MCS may be added by combining modulation 16QAM with code rate R = 5 / 6. In order to maintain the same MCS indexing behavior, the MCS index value for 16QAM + R = 5 / 6 may be 5. However, to keep the existing MCS index with no change, index value “5” should not be assigned to the new MCS of 16QAM + R = 5 / 6. Instead, the four LSBs, bits 3: 0, in MCS index value may be kept as 5, with the MSB bit, bit 4, set to 1 to indicate the new MCS. As such, the value of the four LSBs in the MCS index value for the new MCSs may be kept the same and consistent with the indexing behavior in existing MCS indexing. For instance, continuous odd numbers of MCS index values {5, 7, 9, 11, 13} may be associated with MCS having code rate R = 5 / 6 may be associated with modulations of 16QAM, 64QAM, 256QAM, 1024QAM and 4096QAM.
[0031] Under the proposed scheme, for code rate R = 2 / 3, three new MCSs may be added by combining modulation {QPSK, 16QAM, 256QAM} with code rate R = 2 / 3. In order to maintain the same MCS indexing behavior, the MCS index value for QPSK + R = 2 / 3 may be 1, the MCS index value for 16QAM + R = 2 / 3 may be 3, and the MCS index value for 256QAM + R = 2 / 3 may be 7. However, to keep the existing MCS index with no change, index values “1” , “3” and “7” should not be assigned to the new MCSs with R = 2 / 3. Instead, the four LSBs, bits 3: 0, in MCS index value may be kept as {1, 3, 7} , with the MSB bit, bit 4, set to 1 to indicate the new MCSs with R = 2 / 3. As such, the value of the four LSBs, bits 3: 0, in the MCS index value for the new MCSs with R = 2 / 3 may be kept the same and consistent with the indexing behavior in existing MCS indexing. For instance, continuous odd numbers of MCS index values {1, 3, 5, 7} of the four LSBs, bits 3: 0, in MCS index value for new MCSs with R = 2 / 3 may be associated with modulations of QPSK, 16QAM, 64QAM and 256QAM, with the MSB, bit 4, set to 1 to indicate the newly added MCSs.
[0032] For instance, since QPSK + R = 2 / 3 is right after MCS1 in terms of spectral efficiency, the four LSBs, bits 3: 0 may be kept the same as MCS1, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of QPSK + R of 2 / 3 = 16 + 1 = 17. Similarly, for 16QAM + R = 2 / 3, the four LSBs, bits 3: 0, may be kept the same as MCS3, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of 16QAM + R of 2 / 3 = 16 + 3 = 19. Moreover, for 16QAM + R = 5 / 6, the four LSBs, bits 3: 0, may be set to 5, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of 16QAM + R of 5 / 6 = 16 + 5 = 21. Furthermore, for 256QAM + R = 2 / 3, the four LSBs, bits 3: 0, may be kept the same as MCS7, with the MSB, bit 4, set to 1. Accordingly, the MCS index value for the new MCS of 256QAM + R of 2 / 3 = 16 + 7 = 23. Illustrative Implementations
[0033] FIG. 6 illustrates an example system 600 having at least an example apparatus 610 and an example apparatus 620 in accordance with an implementation of the present disclosure. Each of apparatus 610 and apparatus 620 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to signaling designs for new MCSs in next-generation wireless communications including the various schemes described above with respect to various proposed designs, concepts, schemes, systems and methods described above as well as processes described below. For instance, apparatus 610 may be implemented in STA 110 and apparatus 620 may be implemented in STA 120, or vice versa.
[0034] Each of apparatus 610 and apparatus 620 may be a part of an electronic apparatus, which may be a non-AP STA or an AP STA, such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus. When implemented in a STA, each of apparatus 610 and apparatus 620 may be implemented in a smartphone, a smart watch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer. Each of apparatus 610 and apparatus 620 may also be a part of a machine type apparatus, which may be an IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus. For instance, each of apparatus 610 and apparatus 620 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center. When implemented in or as a network apparatus, apparatus 610 and / or apparatus 620 may be implemented in a network node, such as an AP in a WLAN.
[0035] In some implementations, each of apparatus 610 and apparatus 620 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, 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 various schemes described above, each of apparatus 610 and apparatus 620 may be implemented in or as a STA or an AP. Each of apparatus 610 and apparatus 620 may include at least some of those components shown in FIG. 6 such as a processor 612 and a processor 622, respectively, for example. Each of apparatus 610 and apparatus 620 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of apparatus 610 and apparatus 620 are neither shown in FIG. 6 nor described below in the interest of simplicity and brevity.
[0036] In one aspect, each of processor 612 and processor 622 may 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, even though a singular term “a processor” is used herein to refer to processor 612 and processor 622, each of processor 612 and processor 622 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure. In another aspect, each of processor 612 and processor 622 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, 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 that are configured and arranged to achieve specific purposes in accordance with the present disclosure. In other words, in at least some implementations, each of processor 612 and processor 622 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including those pertaining to signaling designs for new MCSs in next-generation wireless communications in accordance with various implementations of the present disclosure.
[0037] In some implementations, apparatus 610 may also include a transceiver 616 coupled to processor 612. Transceiver 616 may include a transmitter capable of wirelessly transmitting and a receiver capable of wirelessly receiving data. In some implementations, apparatus 620 may also include a transceiver 626 coupled to processor 622. Transceiver 626 may include a transmitter capable of wirelessly transmitting and a receiver capable of wirelessly receiving data. It is noteworthy that, although transceiver 616 and transceiver 626 are illustrated as being external to and separate from processor 612 and processor 622, respectively, in some implementations, transceiver 616 may be an integral part of processor 612 as a system on chip (SoC) , and transceiver 626 may be an integral part of processor 622 as a SoC.
[0038] In some implementations, apparatus 610 may further include a memory 614 coupled to processor 612 and capable of being accessed by processor 612 and storing data therein. In some implementations, apparatus 620 may further include a memory 624 coupled to processor 622 and capable of being accessed by processor 622 and storing data therein. Each of memory 614 and memory 624 may include a type of random-access memory (RAM) such as dynamic RAM (DRAM) , static RAM (SRAM) , thyristor RAM (T-RAM) and / or zero-capacitor RAM (Z-RAM) . Alternatively, or additionally, each of memory 614 and memory 624 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and / or electrically erasable programmable ROM (EEPROM) . Alternatively, or additionally, each of memory 614 and memory 624 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and / or phase-change memory.
[0039] Each of apparatus 610 and apparatus 620 may be a communication entity capable of communicating with each other using various proposed schemes in accordance with the present disclosure. For illustrative purposes and without limitation, a description of capabilities of apparatus 610, as STA 110, and apparatus 620, as STA 120, is provided below in the context of example processes 700 and 800. It is noteworthy that, although a detailed description of capabilities, functionalities and / or technical features of apparatus 620 is provided below, the same may be applied to apparatus 610 although a detailed description thereof is not provided solely in the interest of brevity. It is also noteworthy that, although the example implementations described below are provided in the context of WLAN, the same may be implemented in other types of networks. Illustrative Processes
[0040] FIG. 7 illustrates an example process 700 in accordance with an implementation of the present disclosure. Process 700 may represent an aspect of implementing various proposed designs, concepts, schemes, systems and methods described above. More specifically, process 700 may represent an aspect of the proposed concepts and schemes pertaining to signaling designs for new MCSs in next-generation wireless communications in accordance with the present disclosure. Process 700 may include one or more operations, actions, or functions as illustrated by one or more of blocks 710 and 720. Although illustrated as discrete blocks, various blocks of process 700 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks / sub-blocks of process 700 may be executed in the order shown in FIG. 7 or, alternatively, in a different order. Furthermore, one or more of the blocks / sub-blocks of process 700 may be executed repeatedly or iteratively. Process 700 may be implemented by or in apparatus 610 and apparatus 620 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 700 is described below in the context of apparatus 610 implemented in or as STA 110 functioning as a non-AP STA or an AP STA and apparatus 620 implemented in or as STA 120 functioning as an AP STA or a non-AP STA of a wireless network such as a WLAN in network environment 100 in accordance with one or more of IEEE 802.11 standards. Process 700 may begin at block 710.
[0041] At 710, process 700 may involve processor 612 of apparatus 610, as STA 110, generating a signal. Process 700 may proceed from 710 to 720.
[0042] At 720, process 700 may involve processor 612 transmitting, via transceiver 616, the signal in a wireless communication (e.g., with apparatus 620 as STA 120) .
[0043] In some implementations, in transmitting the signal, process 700 may involve processor 612 transmitting the signal with an indication of an MCS used in transmitting the signal. The indication, with a total of 5 bits, may pertain to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.
[0044] In some implementations, the plurality of existing MCSs, which are indicated by index 0 to 15 in the MCS table, may include a plurality of MCSs in accordance with the IEEE 802.11be specification, and the one or more new MCSs may include one or more MCSs in accordance with an IEEE 802.11bn specification or another IEEE 802.11 specification.
[0045] In some implementations, the one or more new MCSs may include one or more combinations of one or more of: (a) {QPSK, 16QAM, 256QAM} combined with R = 2 / 3; and (b) 16QAM combined with R = 5 / 6.
[0046] In some implementations (Option-3 described above) , one or more entries in the MCS table corresponding to the one or more new MCSs may be associated with the following: (a) an MCS index 17, indicating QPSK with R = 2 / 3; (b) an MCS index 19, indicating 16QAM with R = 2 / 3; (c) an MCS index 20, indicating 16QAM with R = 5 / 6; and (d) an MCS index 23, indicating 256QAM with R = 2 / 3.
[0047] In some implementations (Option-4 described above) , one or more entries in the MCS table corresponding to the one or more new MCSs may be associated with the following: (a) an MCS index 17, indicating QPSK with R = 2 / 3; (b) an MCS index 19, indicating 16QAM with R = 2 / 3; (c) an MCS index 21, indicating 16QAM with R = 5 / 6; and (d) an MCS index 23, indicating 256QAM with R = 2 / 3.
[0048] In some implementations, 5 bits may be used in MCS indication in the MCS table. In some implementations, each of one or more entries in the MCS table corresponding to the one or more new MCSs may have an MSB of the 5 bits used in the MCS indication having a value of 1. Moreover, four LSBs of the 5 bits used in the MCS indication for the one or more entries in the MCS table corresponding to the one or more new MCSs may have values of 1, 3, 5 and 7.
[0049] FIG. 8 illustrates an example process 800 in accordance with an implementation of the present disclosure. Process 800 may represent an aspect of implementing various proposed designs, concepts, schemes, systems and methods described above. More specifically, process 800 may represent an aspect of the proposed concepts and schemes pertaining to signaling designs for new MCSs in next-generation wireless communications in accordance with the present disclosure. Process 800 may include one or more operations, actions, or functions as illustrated by one or more of blocks 810 and 820. Although illustrated as discrete blocks, various blocks of process 800 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks / sub-blocks of process 800 may be executed in the order shown in FIG. 8 or, alternatively, in a different order. Furthermore, one or more of the blocks / sub-blocks of process 800 may be executed repeatedly or iteratively. Process 800 may be implemented by or in apparatus 610 and apparatus 620 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 800 is described below in the context of apparatus 610 implemented in or as STA 110 functioning as a non-AP STA or an AP STA and apparatus 620 implemented in or as STA 120 functioning as an AP STA or a non-AP STA of a wireless network such as a WLAN in network environment 100 in accordance with one or more of IEEE 802.11 standards. Process 800 may begin at block 810.
[0050] At 810, process 800 may involve processor 622 of apparatus 620, as STA 120, receiving, via transceiver 626, a signal in a wireless communication (e.g., with apparatus 610 as STA 110) . Process 800 may proceed from 810 to 820.
[0051] At 820, process 800 may involve processor 622 processing the signal (e.g., decoding the signal) .
[0052] In some implementations, in receiving the signal, process 800 may involve processor 622 receiving the signal with an indication of an MCS used in transmitting the signal. The indication, with a total of 5 bits, may pertain to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.
[0053] In some implementations, the plurality of existing MCSs, which are indicated by index 0 to 15 in the MCS table, may include a plurality of MCSs in accordance with the IEEE 802.11be specification, and the one or more new MCSs may include one or more MCSs in accordance with an IEEE 802.11bn specification or another IEEE 802.11 specification.
[0054] In some implementations, the one or more new MCSs may include one or more combinations of one or more of: (a) {QPSK, 16QAM, 256QAM} combined with R = 2 / 3; and (b) 16QAM combined with R = 5 / 6.
[0055] In some implementations (Option-3 described above) , one or more entries in the MCS table corresponding to the one or more new MCSs may be associated with the following: (a) an MCS index 17, indicating QPSK with R = 2 / 3; (b) an MCS index 19, indicating 16QAM with R = 2 / 3; (c) an MCS index 20, indicating 16QAM with R = 5 / 6; and (d) an MCS index 23, indicating 256QAM with R = 2 / 3.
[0056] In some implementations (Option-4 described above) , one or more entries in the MCS table corresponding to the one or more new MCSs may be associated with the following: (a) an MCS index 17, indicating QPSK with R = 2 / 3; (b) an MCS index 19, indicating 16QAM with R = 2 / 3; (c) an MCS index 21, indicating 16QAM with R = 5 / 6; and (d) an MCS index 23, indicating 256QAM with R = 2 / 3.
[0057] In some implementations, 5 bits may be used in MCS indication in the MCS table. In some implementations, each of one or more entries in the MCS table corresponding to the one or more new MCSs may have an MSB of the 5 bits used in the MCS indication having a value of 1. Moreover, four LSBs of the 5 bits used in the MCS indication for the one or more entries in the MCS table corresponding to the one or more new MCSs may have values of 1, 3, 5 and 7. Additional Notes
[0058] The herein-described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected" , or "operably coupled" , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable" , to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and / or physically interacting components and / or wirelessly interactable and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.
[0059] Further, with respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.
[0060] Moreover, it will be understood by those skilled in the art that, in general, terms used herein, and especially in the appended claims, e.g., bodies of the appended claims, are generally intended as “open” terms, e.g., the term “including” 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 “includes but is not limited to, ” etc. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to implementations containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an, " e.g., “a” and / or “an” should be interpreted to mean “at least one” or “one or more; ” the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations, " without other modifiers, means at least two recitations, or two or more recitations. Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. In those instances where a convention analogous to “at least one of A, B, or C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. It will be further understood by those within the art 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 contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B. ”
[0061] From the foregoing, it will be appreciated that various implementations of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. Accordingly, the various implementations disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
Claims
1.A method, comprising:generating, by a processor of an apparatus, a signal; andtransmitting, by the processor, the signal in a wireless communication,wherein the transmitting of the signal comprises transmitting the signal with an indication of a modulation and coding scheme (MCS) used in transmitting the signal, andwherein the indication, with a total of 5 bits, pertains to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.2.The method of Claim 1, wherein the plurality of existing MCSs, which are indicated by index 0 to 15 in the MCS table, comprise a plurality of MCSs in accordance with an Institute of Electrical and Electronics Engineers (IEEE) 802.11be specification, and wherein the one or more new MCSs comprise one or more MCSs in accordance with an IEEE 802.11bn specification or another IEEE 802.11 specification.3.The method of Claim 1, wherein the one or more new MCSs comprise one or more combinations of one or more of:quadrature phase-shift keying (QPSK) , 16 quadrature amplitude modulation (16QAM) or 256 quadrature amplitude modulation (256QAM) combined with a code rate (R) = 2 / 3; and16QAM combined with R = 5 / 6.4.The method of Claim 1, wherein one or more entries in the MCS table corresponding to the one or more new MCSs are associated with:an MCS index 17, indicating quadrature phase-shift keying (QPSK) with a code rate (R) =2 / 3;an MCS index 19, indicating 16 quadrature amplitude modulation (16QAM) with R = 2 / 3;an MCS index 20, indicating 16QAM with R = 5 / 6; andan MCS index 23, indicating 256 quadrature amplitude modulation (256QAM) with R = 2 / 3.5.The method of Claim 1, wherein one or more entries in the MCS table corresponding to the one or more new MCSs are associated with:an MCS index 17, indicating quadrature phase-shift keying (QPSK) with a code rate (R) =2 / 3;an MCS index 19, indicating 16 quadrature amplitude modulation (16QAM) with R = 2 / 3;an MCS index 21, indicating 16QAM with R = 5 / 6; andan MCS index 23, indicating 256 quadrature amplitude modulation (256QAM) with R = 2 / 3.6.The method of Claim 1, wherein 5 bits are used in MCS indication in the MCS table, and wherein each of one or more entries in the MCS table corresponding to the one or more new MCSs has a most significant bit (MSB) of the 5 bits used in the MCS indication having a value of 1.7.The method of Claim 6, wherein four least significant bits (LSBs) of the 5 bits used in the MCS indication for the one or more entries in the MCS table corresponding to the one or more new MCSs have values of 1, 3, 5 and 7.8.A method, comprising:receiving, by a processor of an apparatus, a signal in a wireless communication; andprocessing, by the processor, the signal,wherein the receiving of the signal comprises receiving the signal with an indication of a modulation and coding scheme (MCS) used in transmitting the signal, andwherein the indication, with a total of 5 bits, pertains to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.9.The method of Claim 8, wherein the plurality of existing MCSs, which are indicated by index 0 to 15 in the MCS table, comprise a plurality of MCSs in accordance with an Institute of Electrical and Electronics Engineers (IEEE) 802.11be specification, and wherein the one or more new MCSs comprise one or more MCSs in accordance with an IEEE 802.11bn specification or another IEEE 802.11 specification.10.The method of Claim 8, wherein the one or more new MCSs comprise one or more combinations of one or more of:quadrature phase-shift keying (QPSK) , 16 quadrature amplitude modulation (16QAM) or 256 quadrature amplitude modulation (256QAM) combined with a code rate (R) = 2 / 3; and16QAM combined with R = 5 / 6.11.The method of Claim 8, wherein one or more entries in the MCS table corresponding to the one or more new MCSs are associated with:an MCS index 17, indicating quadrature phase-shift keying (QPSK) with a code rate (R) =2 / 3;an MCS index 19, indicating 16 quadrature amplitude modulation (16QAM) with R = 2 / 3;an MCS index 20, indicating 16QAM with R = 5 / 6; andan MCS index 23, indicating 256 quadrature amplitude modulation (256QAM) with R = 2 / 3.12.The method of Claim 8, wherein one or more entries in the MCS table corresponding to the one or more new MCSs are associated with:an MCS index 17, indicating quadrature phase-shift keying (QPSK) with a code rate (R) =2 / 3;an MCS index 19, indicating 16 quadrature amplitude modulation (16QAM) with R = 2 / 3;an MCS index 21, indicating 16QAM with R = 5 / 6; andan MCS index 23, indicating 256 quadrature amplitude modulation (256QAM) with R = 2 / 3.13.The method of Claim 8, wherein 5 bits are used in MCS indication in the MCS table, and wherein each of one or more entries in the MCS table corresponding to the one or more new MCSs has a most significant bit (MSB) of the 5 bits used in the MCS indication having a value of 1.14.The method of Claim 13, wherein four least significant bits (LSBs) of the 5 bits used in the MCS indication for the one or more entries in the MCS table corresponding to the one or more new MCSs have values of 1, 3, 5 and 7.15.An apparatus, comprising:a transceiver configured to communicate wirelessly; anda processor coupled to the transceiver and configured to perform operations comprising:generating a signal; andtransmitting, via the transceiver, the signal in a wireless communication,wherein the transmitting of the signal comprises transmitting the signal with an indication of a modulation and coding scheme (MCS) used in transmitting the signal, andwherein the indication, with a total of 5 bits, pertains to an entry in a MCS table listing a plurality of existing MCSs and one or more new MCS.16.The apparatus of Claim 14, wherein the plurality of existing MCSs, which are indicated by index 0 to 15 in the MCS table, comprise a plurality of MCSs in accordance with an Institute of Electrical and Electronics Engineers (IEEE) 802.11be specification, and wherein the one or more new MCSs comprise one or more MCSs in accordance with an IEEE 802.11bn specification or another IEEE 802.11 specification.17.The apparatus of Claim 14, wherein the one or more new MCSs comprise one or more combinations of one or more of:quadrature phase-shift keying (QPSK) , 16 quadrature amplitude modulation (16QAM) or 256 quadrature amplitude modulation (256QAM) combined with a code rate (R) = 2 / 3; and16QAM combined with R = 5 / 6.18.The apparatus of Claim 14, wherein one or more entries in the MCS table corresponding to the one or more new MCSs are associated with:an MCS index 17, indicating quadrature phase-shift keying (QPSK) with a code rate (R) =2 / 3;an MCS index 19, indicating 16 quadrature amplitude modulation (16QAM) with R = 2 / 3;an MCS index 20, indicating 16QAM with R = 5 / 6; andan MCS index 23, indicating 256 quadrature amplitude modulation (256QAM) with R = 2 / 3.19.The apparatus of Claim 14, wherein one or more entries in the MCS table corresponding to the one or more new MCSs are associated with:an MCS index 17, indicating quadrature phase-shift keying (QPSK) with a code rate (R) =2 / 3;an MCS index 19, indicating 16 quadrature amplitude modulation (16QAM) with R = 2 / 3;an MCS index 21, indicating 16QAM with R = 5 / 6; andan MCS index 23, indicating 256 quadrature amplitude modulation (256QAM) with R = 2 / 3.20.The apparatus of Claim 14, wherein 5 bits are used in MCS indication in the MCS table, wherein each of one or more entries in the MCS table corresponding to the one or more new MCSs has a most significant bit (MSB) of the 5 bits used in the MCS indication having a value of 1, and wherein four least significant bits (LSBs) of the 5 bits used in the MCS indication for the one or more entries in the MCS table corresponding to the one or more new MCSs have values of 1, 3, 5 and 7.
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