DE112017008322T5 - IMPROVED TRANSMISSION REPEAT FOR WIRELESS COMMUNICATION - Google Patents

Abstract

This disclosure describes systems, methods, and devices related to signal detection. A device can determine a first Physical Layer Protocol Data Unit (PPDU). The device can store one or more segments of the first Wi-Fi PPDU. The device can send the first Wi-Fi PPDU. The device can identify an acknowledgment frame. The device can send a second Wi-Fi PPDU.

Description

TECHNICAL AREA

This disclosure relates generally to wireless communication systems and methods, and more particularly relates to signal retransmission.

BACKGROUND

Wireless devices are becoming more widespread and demanding access to wireless channels. The growing density of wireless applications requires increased availability of networks and frequency spectra. Wireless devices can communicate over a Next Generation 60 GHz (NG60) network, an Enhanced Directional Multi-Gigabit (EDMG) network, and / or any other network.

Figure list

• 1 FIG. 12 is a network diagram illustrating an example network in accordance with one or more example embodiments of the present disclosure.
• 2A Figure 12 shows an illustrative downlink transmission process.
• 2 B Figure 12 shows an illustrative uplink transmission process.
• 3A 13 shows an illustrative hybrid automatic transmission request (HARQ) transmission process in accordance with one or more exemplary embodiments of the present disclosure.
• 4A FIG. 12 shows an illustrative downlink HARQ transmission process in accordance with one or more exemplary embodiments of the present disclosure.
• 4B FIG. 12 shows an illustrative uplink HARQ transmission process in accordance with one or more exemplary embodiments of the present disclosure.
• 5A Figure 13 illustrates an illustrative portion of a preamble field of a frame indicating a HARQ type, according to one or more exemplary embodiments of the present disclosure.
• 5B Figure 13 illustrates an illustrative portion of a HARQ acknowledgment frame for uplink transmissions in accordance with one or more exemplary embodiments of the present disclosure.
• 6A FIG. 11 illustrates a diagram showing a bit error rate for retransmission operations in accordance with one or more exemplary embodiments of the present disclosure.
• 6B FIG. 11 illustrates a diagram depicting a packet error rate for retransmission operations in accordance with one or more exemplary embodiments of the present disclosure.
• 6C FIG. 10 illustrates a diagram showing throughput for retransmission operations in accordance with one or more exemplary embodiments of the present disclosure.
• 7th FIG. 12 shows illustrative HARQ segmentation in accordance with one or more exemplary embodiments of the present disclosure.
• 8th FIG. 10 shows an illustrative process for an improved HARQ in accordance with one or more exemplary embodiments of the present disclosure.
• 9 FIG. 10 shows a next generation portion of a HARQ frame in accordance with one or more embodiments of the present disclosure.
• 10A Figure 13 illustrates a flow diagram of an illustrative process for enhanced retransmission in accordance with one or more exemplary embodiments of the present disclosure.
• 10B Figure 13 illustrates a flow diagram of an illustrative process for enhanced retransmission in accordance with one or more exemplary embodiments of the present disclosure.
• 10C Figure 13 illustrates a flow diagram of an illustrative process for enhanced retransmission in accordance with one or more exemplary embodiments of the present disclosure.
• 10D Figure 13 illustrates a flow diagram of an illustrative process for enhanced retransmission in accordance with one or more exemplary embodiments of the present disclosure.
• 11 FIG. 11 illustrates a functional diagram of an exemplary communication station that may be suitable for use as a user device, in accordance with one or more exemplary embodiments of the present disclosure.
• 12 FIG. 3 is a block diagram of an exemplary machine on which one or more Techniques (e.g., methods) can be performed in accordance with one or more exemplary embodiments of the present disclosure.

DETAILED DESCRIPTION

The exemplary embodiments described herein provide certain systems, methods, and apparatus for improved retransmission. The following description and drawings sufficiently illustrate specific embodiments to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. Portions and features of some embodiments may be included in portions and features of other embodiments or may be replaced with portions and features of other embodiments. Embodiments set forth in the claims include all available equivalents of such claims.

Devices can communicate over a Next Generation 60 GHz (NG60) network, an Enhanced Directional Multi-Gigabit (EDMG) network, and / or any other network. Devices that operate in EDMG can be referred to in the present text as EDMG devices. This may include user devices and / or APs or other devices capable of communicating according to a communication standard.

The IEEE 802.11 family of standards defines methods of signal retransmission, such as an automatic transmission request (ARQ). An ARQ can be used as an error control mechanism for handling transmission errors. Hybrid ARQ (HARQ) is a cellular concept that is currently not available in Wi-Fi. HARQ combines error correction code and ARQ error control. With ARQ, for example, bits can be added to data packets and can be retransmitted with the aid of an error detection code, such as a cyclic redundancy check (CRC). Devices that receive a data packet with a CRC can determine that the data packet was corrupted or otherwise improperly received and request a retransmission. With HARQ, the original data can be encoded with a Forward Error Correction (FEC) code (e.g. parity bits), which can be sent with a data packet or transmitted on request if a receiving device detects a transmission error (e.g. when a CRC check fails).

The ability to have direct access to Wi-Fi made HARQ difficult to implement. There are also differences between Wi-Fi and cellular that have made Wi-Fi difficult to implement. For example, trigger frames may not be used in cellular networks so that cellular devices can send acknowledgment frames (Ack) with each transmission instead of having to wait for a new transmission opportunity (TXOP). A key to implementing HARQ in Wi-Fi can be a Physical Layer (PHY) CRC and Ack / Nack (Negative Acknowledgment) frames.

Another challenge when implementing HARQ for Wi-Fi can be the conservation of storage space or resources. In order to save memory or resources, it can be useful to save samples of a data packet (for example segments) instead of whole bits. For example, information sent or received can be buffered by a device so that if some or all of this information is not properly received or processed, that information can be requested or re-sent. If a transmission fails during a TXOP, it is possible that a device is unaware of a next available time to retransmit, so more information is buffered for a longer time before retransmission can be attempted. The MAC layer (Medium Access Control) can separate MAC packets from the PHY layer and can carry out CRC checks. However, the PHY may need to buffer data in the event that retransmission is required. Therefore, it may be desirable to reduce the number of information buffered and the duration of the buffering, if one or more retransmissions may be appropriate.

Other reasons have so far prevented HARQ from being implemented in Wi-Fi. One reason is the lack of Wi-Fi support for centralized scheduling of transmissions and retransmissions. In addition, a long TXOP may be supported for some Wi-Fi traffic classes (for example, if the TXOP limit = 0), but in such cases no more than a single frame must be sent, so the retransmission delay is unlimited can. Also, Wi-Fi has focused on receiving MAC Layer Ack frames as an indication of a successful transmission instead of for Example based on PHY ack / nack transmissions in the event of a failed packet decoding.

Wi-Fi has used MAC layer ack / nack (for example, nack in the case of block ack transmissions) to indicate successful or unsuccessful transmission of MAC data packets. After receiving a nack or requesting to receive an ack for transmission, Wi-Fi systems have used MAC layer retransmissions to retransmit packets. In addition, adaptive modulation and coding (e.g. link adaptation) are supported by Wi-Fi in order to adjust modulation and coding rates reactively and thus overcome connection errors.

If the initial code rate in Wi-Fi is not ideal (e.g. too high) for packet transmission, a significant number of retransmissions can occur, increasing packet transmission latency and adversely affecting throughput. In addition, link adaptation can be a reactive approach so errors occur. Modulation and coding can be adjusted after connection failures so that lower packet error rates occur in future retransmissions. It can also happen that retransmission and link adaptation do not work efficiently if connection errors are "bursty". Therefore, it may be useful to define an improved signal retransmission regime in Wi-Fi using HARQ.

Because a PHY-CRC can be appended to a MAC Protocol Data Unit (MPDU) before scrambling and encoding can be performed in the PHY to enable HARQ, retransmissions can contain entire PHY packets. This can lead to latency errors and inefficiencies. In addition, it can be advantageous to use HARQ in Wi-Fi both in single-user environments (SU) and in multi-user environments (multiuser, MU).

Exemplary embodiments of the present disclosure relate to systems, methods, and apparatus for enhanced signal retransmission for wireless communication.

The IEEE 802.1 1ax standard can allow features that are favorable for the use of HARQ. For example, an access point (AP) may have tighter control over the downlink and uplink data scheduling of SU and MU transmissions. In addition, long channel reservations for TXOPs may be available and a station (STA) device may maintain access to a channel (e.g., up to a maximum duration of 8.448 milliseconds) over multiple PPDU transmissions or retransmissions. A limit on the maximum time for storing soft bits in a receive buffer can be provided. In one or more embodiments, depending on the HARQ technique used, increases in the signal-to-noise ratio (SNR) and / or the coding can be implemented while at the same time the number of MAC layer retransmissions is reduced.

In one or more embodiments, Wi-Fi can be customized to support HARQ. For example, a method for decoding and detecting packet errors can be defined on the PHY for Wi-Fi. A PHY ack and nack can be defined for Wi-Fi HARQ to indicate the success or failure of the transmission. PHY addressing can be implemented to minimize the effects on a neighboring Basic Service Set (BSS) or an overlapping BSS (Overlapping BSS, OBSS) and associated STAs. A method of indicating the type of HARQ retransmission to be used can also be defined. In addition, soft bits can be combined in a receiver device to enable Wi-Fi HARQ.

By adding support for Wi-Fi HARQ, any Wi-Fi AP and client (e.g., high-end client devices) can benefit from improved connection reliability and throughput. This can improve the quality of the experience for end users. In addition, through the synergistic use of the stronger computing and storage resources available to an AP compared to an STA, Uplink-HARQ can also be used.

In one or more embodiments, a data originator (e.g., a sender) may combine PHY Service Data Units (PSDUs) with CRC bits (e.g., within an SU / MU-PPDU) and thereby enable the decoding of PHY packets in a target device (e.g. a receiver). The PSDU and CRC bits can be encoded by the transmitter at an initial coding rate and sent to the receiver. If the receiver cannot decode the received soft bits, the soft bits can be stored in a HARQ buffer in the receiver. The receiver can send a PHY-Nack to indicate a packet error to the sender.

In one or more embodiments, a HARQ state machine in the transmitter may track the original transmission while buffering the transmitted PSDUs or the punctured bits of the PSDUs. Depending on the HARQ regime or mode used, retransmission may include retransmitting the original PSDU or retransmitting the punctured bits to meet the recipient's code rate. The retransmission can continue until the receiver can decode the PSDUs, after which the receiver can send a PHY-Ack. Soft combining approaches can be used depending on the recipient buffer capabilities.

In one or more embodiments, a downlink (DL) HARQ method can be defined. Once an AP and a STA have reserved a channel for a TXOP, the AP can send a DL-PPDU frame after adding CRC bits to the PSDU. The AP may contain an indication of the HARQ type or mode used for the transmission, and the indication may be included in one or more preamble fields of the PPDU. For example, a high efficiency Signal A (HE-SIG-A) field of a PPDU preamble may contain two sections or fields, HE-SIG-A1 and HE-SIG-A2, which can identify the HARQ type or mode. The HARQ type or mode can be indicated by bits in the HE-SIG-A1 and HE-SIG-A2 fields, and the type or mode can include a chase combination, incremental redundancy, or some other type or mode. A receiving STA can receive and decode the packet and check for CRC errors. If the CRC fails, the STA can buffer the encoded bits in a HARQ buffer. The STA can prepare a PHY ack / nack frame. If the CRC is successful, the PHY ack / nack frame can have the value = Ack. If the CRC fails, the PHY Ack / Nack frame can have the value = Nack. The ack / nack indication can be given, for example, by bit B14 in a HE-SIG-A1 field of the PHY ack / nack frame of a null data packet. STAs can also be addressed using a PHY header. For example, an AP may contain a PHY address as a combination of a BSS color concatenated with an STA ID to uniquely identify the PHY frame for an intended STA. Similarly, STAs can include a PHY address (e.g., BSS color and address identifier) in a PHY header to identify the PHY ack / nack frames of a particular STA.

In one or more embodiments, an uplink (UL) HARQ method can be defined. An AP can initiate an STA transmission using a trigger frame. After an interval (for example a short interframe space, arbitration interframe space, distributed interframe space, expanded interframe space, point interframe space, reduced interframe space) a STA can send a UL-PPDU (for example including a PSDU and CRC bits encoded using an initial code rate) and the PHY-CRC can be checked by the AP. If the CRC fails, the AP can store the received soft bits in a buffer and send an Ack / Nack PPDU to the STA to inform the STA of the transmission error. The Ack / Nack PPDU from the AP can be both a PPDU contained in a trigger frame and an Ack / Nack control frame. If a trigger frame is used, a trigger type can indicate the type or mode of the HARQ (for example chase combination, incremental redundancy) in a common information field of the trigger frame. In order to keep track of the HARQ transmissions, the STA can operate a state machine which can display a transmission number and the required PSDU bits that must be buffered in the STA to enable different HARQ types. HARQ can be executed until a transfer is successful or until a maximum number of HARQ transfers is reached.

In one or more embodiments, HARQ can use segmented transfers of data packets. A PHY transmission can be divided into segments, and coding by a transmission device can be performed on each segment. Ack / Nack bitmaps can be sent in response to correct or incorrect receipt of segments in the PHY data. A transmitter can selectively retransmit segments that have been incorrectly received or decoded, while new segments can be transmitted with the retransmitted segments. The segmentation can be done in such a way that each segment can contain an integer number of MAC packets (e.g. MPDUs). This can allow for fast MAC-level decoding of data when a segment is received successfully without waiting for the next segments to be properly decoded. Segmented HARQ transmissions can be used in SU and MU environments.

In one or more embodiments, MAC packets can be clustered into segments. Each segment can be given a PHY-CRC appendix, then scrambled and encoded separately. Coded segments can be aggregated to a HARQ-PPDU. This can allow HARQ to operate in different fragments of a PPDU, which can lead to a reduction in processing latencies. A HARQ Ack / Nack protocol can enable PPDU segments with minimal control signal management data overhead.

In one or more embodiments, segmented HARQs can be implemented on top of the MAC or PHY layers. Aggregate MPDUs (A-MPDUs) can be divided into segments, and each segment can contain an integer number of MPDUs. Individual segments can be scrambled and filled with stuffing bits so that an integer number of LDPC code words can be obtained. A CRC field can be added to each segment to enable ack / nack mechanisms at the PHY level. Each segment can be coded and aggregated to form a HARQ PPDU. Signaling fields in the PHY preamble of the HARQ-PPDU can be added to identify boundaries (e.g. length) of each transmitted segment. The type of HARQ used can be specified by the HARQ-PPDU.

In one or more embodiments, a receiver can be configured for HARQ transmissions. A receiving device can use signaling fields in a received PHY preamble of a PPDU to identify HARQ segments and can add each segment to a separate HARQ buffer. The number of HARQ buffers in the receiving device can be set to a maximum number of simultaneous segments that can be transmitted. For example, after the recipient has identified each segment, the segments can be queued sequentially in separate buffers. Each segment can be decoded and the CRC of each respective segment can be checked. Successfully received or decoded segments can be forwarded to the MAC for further processing, and the segments can be deleted, removed or removed from the buffer. The next non-empty buffer can be promoted to the next position in the buffer queue. Segments with failed CRC checks can remain in the buffer or buffers for further processing and for subsequent HARQ transmissions. Each segment can contain an integer number of MPDUs which can be processed individually and confirmed at the MAC layer.

The above descriptions are for illustrative purposes and should not be construed as limiting. Numerous other examples, configurations, processes, etc., may exist, some of which are detailed below. Exemplary embodiments will now be described with reference to the accompanying figures.

1 FIG. 13 is a network diagram illustrating an example network environment in accordance with one or more example embodiments of the present disclosure. The wireless network 100 can be one or more user devices 120 and one or more access points (APs) 102 that can communicate according to the IEEE 802.11 communication standards, such as the IEEE 802.11ad and / or IEEE 802.11ay specifications. The one or more user devices 120 can be referred to as stations (STAs). The one or more user devices 120 can be mobile devices that are non-stationary and have no fixed locations. Although the AP 102 it is shown as having multiple antennas with the user devices 120 communicated, it is to be understood that this is for illustrative purposes only and that any other user device as well 120 using multiple antennas with other user devices 120 and / or APs 102 can communicate.

In some embodiments, the one or more user devices may 120 and the AP 102 contain one or more computer systems that are related to the computer system from the functional diagram of 11 and / or the exemplary machine or system of FIG 12 are similar.

One or more illustrative user devices 120 and / or APs 102 can be used by one or more users 110 operate. The one or more user devices 120 (for example 124, 126 or 128) and / or the AP 102 may include any suitable processor controlled device including, for example, a mobile device or a non-mobile, e.g., static, device. For example, the one or more user devices 120 and / or the AP 102 contain: user equipment (UE), a station (STA), an access point (AP), a personal computer (PC), a wireless device that can be worn on the body (e.g. bracelet, wrist watch, glasses, ring, etc.), a desktop Computer, a mobile computer, a laptop computer, an Ultrabook ™ computer, a notebook computer, a tablet computer, a server computer, a hand-held computer, a hand-held device, an Internet of Things (IoT) device , a sensor device, a PDA device, a handheld PDA device, an on-board device, an off-board device, a hybrid device (e.g. a combination of mobile phone functionalities with PDA device functionalities), a consumer electronic device, a vehicle device , a non-vehicle device, a mobile or portable device, a non-mobile or non-portable Device, a cellular phone, a cellular phone, a PCS device, a PDA device that includes a wireless communication device, a mobile or portable GPS device, a DVB device, a relatively small computing device, a non-desktop computer, a " Carry Small Live Large (CSLL) device, an Ultra Mobile Device (UMD), an Ultra Mobile PC (UMPC), a Mobile Internet Device (MID), an "Origami" device or computing device, a device that is Dynamically Composable Computing (DCC) supports, a context aware device, a video device, an audio device, an A / V device, a set-top box (STB), a BluRay disc (BD) player, a BD recorder, a Digital Video Disc (DVD) player, a High Definition (HD) DVD player, a DVD recorder, an HD DVD recorder, a Personal Video Recorder (PVR), an HD broadcast receiver, a video source, an audio source, a video sink, an audio sink, a stereo tune r, a radio receiver, a flat screen, a personal media player (PMP), a digital video camera (DVC), a digital audio player, a loudspeaker, an audio receiver, an audio amplifier, a game device, a data source, a data sink, a digital photo camera (DSC ), a media player, a smartphone, a television, a music player, or the like. It should be understood that the above is a list of devices. However, other devices, including smart devices, Internet of Things (IoT) such as lights, air conditioning, auto components, household components, household appliances, etc., may be included in this list.

Any of the one or more user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can be configured to communicate with each other over one or more communication networks 130 and or 135 communicate wirelessly or wired. Any of the communication networks 130 and or 135 For example, it may include any of a combination of different types of suitable communication networks, such as broadcast networks, cable networks, public networks (e.g. the Internet), private networks, wireless networks, cellular networks, or other suitable private and / or public networks. In addition, any of the communication networks can 130 and or 135 any suitable communication range and may include, for example, global networks (e.g., the Internet), metropolitan area networks (MANs), wide area networks (WANs), local area networks (LANs), or personal area networks (PANs). In addition, any of the communication networks 130 and or 135 Contain any type of medium over which network traffic can be carried including, for example, coaxial cable, twisted pair, optical fiber, a hybrid fiber coaxial medium (HFC), terrestrial microwave transceivers, radio frequency communication media, white space communication media, ultra high frequency Communication media, satellite communication media, or any combination thereof.

Any of the one or more user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can contain one or more communication antennas. The one or more communication antennas may be any suitable type of antenna that conforms to the communication protocols used by the one or more user devices 120 (for example, user devices 124 , 126 and 128 ) and the AP 102 be used. Some non-limiting examples of suitable communication antennas are Wi-Fi antennas, antennas compatible with the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards, directional antennas, omnidirectional antennas, dipole antennas, folded dipole antennas, patch antennas, multiple-input multiple Output (MIMO) antennas or the like. The one or more communication antennas can be communicatively coupled to a radio component to send and / or receive signals, such as communication signals to and / or from the user devices 120 and / or the AP 102 .

Any of the user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can contain multiple antennas, which can contain one or more directional antennas. The one or more directional antennas can be directed in several beam directions. For example, at least one antenna of a user device 120 (or an AP 102 ) can be directed in several beam directions. A user device 120 (or an AP 102 ) can, for example, be a directed transmission to another user device 120 (or another AP 102 ) transfer.

Any of the one or more user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can be configured to perform directional transmission and / or reception in conjunction with wireless communication in a wireless network. Any of the one or more user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can be configured to perform such directional transmission and / or reception using a set of multiple antenna arrays (e.g., DMG antenna arrays or the like). Each of the multiple antenna arrays can be used for transmission and / or reception in a specific respective direction or a specific range of directions can be used. Any of the one or more user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can be configured to carry out any given directional transmission in the direction of one or more defined transmit sectors. Any of the one or more user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 can be configured to carry out any given directional reception from one or more defined reception sectors.

MIMO beamforming in a wireless network can be done using RF beamforming and / or digital beamforming. In some embodiments, when performing a given MIMO transmission, user devices 120 and / or the AP 102 configured to use all or a subset of their one or more communication antennas to perform MIMO beamforming.

Any of the user devices 120 (for example, user devices 124 , 126 , 128 ) and the AP 102 may include any suitable radio device and / or transceiver for transmitting and / or receiving radio frequency (RF) signals in the bandwidth and / or channels that conform to the communication protocols used by any of the one or more user devices 120 and the AP 102 used to communicate with each other. The radio components can contain hardware and / or software for modulating and / or demodulating communication signals in accordance with the specified transmission protocols. The radio components can further contain hardware and / or software instructions for communicating via one or more Wi-Fi and / or Wi-Fi direct protocols standardized by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards are. In certain exemplary embodiments, the radio component in cooperation with the communication antennas can be configured to operate over 2.4 GHz channels (e.g. 802.1 1b, 802.11g, 802.11n, 802.1 1ax), 5 GHz channels (e.g. 802.11n , 802.11ac, 802.11ax) or 60 GHZ channels (e.g. 802.11ad, 802.11ay). In some embodiments, non-Wi-Fi protocols can be used for communication between devices, such as Bluetooth, Dedicated Short-Range Communication (DSRC), Ultra High Frequency (UHF) (e.g. IEEE 802.11af, IEEE 802.22), White band frequency ( e.g. white rooms) or other packetized radio communication. The radio component can contain any known receiver and any known baseband that is suitable for communication via the communication protocols. The radio component can furthermore contain a low-noise amplifier (LNA), additional signal amplifiers, an analog-to-digital converter (A / D converter), one or more buffers and a digital baseband.

Some illustrative aspects can be used in connection with a wireless communication network communicating over a frequency band of 60 GHz. However, other embodiments can also be implemented using other suitable wireless communication frequency bands, for example an Extremely High Frequency (EHF) band (the millimeter wave (mmWave) frequency band), a frequency band within the frequency band between 20 GHz and 300 GHz, a WLAN frequency band , a WPAN frequency band, a frequency band according to the WGA specification, and the like.

The terms “directional multi-gigabit (DMG)” and “directional band” (DBand) can refer to a frequency band in which the channel start frequency is above 45 GHz. In one example, the DMG communication may include one or more directional links to communicate at a rate of several gigabits per second, for example at least 1 gigabit per second, 7 gigabits per second, or any other rate.

In some illustrative embodiments, the one or more user devices may 120 and / or the AP 102 Be configured to operate according to one or more specifications, including one or more IEEE 802.11 specifications (for example, an IEEE 802.11ad specification, an IEEE 802.11ay specification, and / or another specification and / or another protocol) . For example, a change in DMG operation in the 60 GHz band according to an IEEE 802.11ad standard can be defined, for example, by an IEEE 802.11ay project.

It goes without saying that a basic service set (BSS) provides the basic building block of an 802.11 wireless LAN. For example, in infrastructure mode, a single access point (AP) along with all associated stations (STAs) is referred to as a BSS.

In one or more embodiments, the AP 102 and / or the user devices 120 one or more frames (for example Frame 140 ) send to each other. The frames can be sent as part of a HARQ regime with enhanced signal retransmission.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

2A Figure 12 shows an illustrative downlink transmission process 200 .

As in 2A can see the downlink transmission process 200 be defined by the IEEE 802.11ax standard and can do downlink transmissions during a TXOP 202 define. One AP 204 can do downlink transmissions to the STA 206 send. For example, an AP 204 Send downlink data PPDUs (in SU or MU mode). The downlink data PPDUs can carry data 208 , Data 210 and data 212 contain. In response to each downlink data PPDU, the STA 206 Reply with an ack frame. After receiving data 208 can the STA 206 for example an ack 214 send. After receiving data 210 can the STA 206 an ack 216 send. After receiving data 212 can the STA 206 an ack 216 send. Also, prior to sending downlink data, PPDUs can be used by the AP 202 one or more additional frames (for example frame 218 ) to enable the downlink data PPDUs. Frame 218 can be a trigger frame, a beacon frame, or another control frame.

2 B Figure 12 shows an illustrative uplink transmission process 250 .

As in 2 B can see the uplink transfer process 250 be defined by the IEEE 802.11ax standard and can support uplink transmissions during a TXOP 252 define. One AP 254 can with the STA 256 communicate and can during a TXOP 252 a trigger frame 258 , a trigger frame 260 and a trigger frame 262 to the STA 256 send. The STA 256 may send uplink data frames, such as data, in response to the receipt of trigger frames 264 , Data 266 and data 268 . After receiving uplink data frames, the AP can 254 Send Ack frames, such as Ack 270 , Ack 272 and Ack 274 .

3A Figure 12 shows an illustrative HARQ transmitter-side transmission process 300 in accordance with one or more exemplary embodiments of the present disclosure.

As in 3A shown can be the HARQ transmission process 300 a PPDU 302 contain. The PPDU 302 can contain one or more fields, such as service 304 , PSDU data 306 , Pre-FEC stuffing bit 308 and end 310 . The PSDU data 306 can use an A-MPDU 312 which can consist of one or more MPDUs. Each MPDU can have an MPDU limiter (e.g. MPDU limiter 316 , MPDU limiter 322 ), MDPU data (for example MPDU data 318 , MDPU data 324 ) and a stuff bit (for example stuff bit 320 , Stuffing bit 326 ) contain. Any MPDU data can be an MPDU 328 Contain that from a MAC header (for example MAC header 330 ), MSDU data (for example MSDU data 332 ) and a frame check sequence (FCS) (for example, FCS 334 ) can exist. PPDU 302 can through a scrambler 336 are scrambled, resulting in scrambled uncoded bits 338 leads, and CRC bits (for example CRC 340 ) can be sent to the scrambled uncoded bits 338 be appended. A HARQ state machine 342 can use the scrambled uncoded bits 338 and CRC 340 track for HARQ retransmissions. The scrambled uncoded bits 338 and CRC 340 can for coding to a coding device 344 what to be sent encoded symbols 346 leads. The coded symbols 346 can through the sending device 348 be sent.

In one or more embodiments, the data originator (e.g., the sending device 348 ) PSDUs (for example PSDU data 306 ) with the CRC 340 (for example, within an SU / MU-PPDU), which may enable the decoding of the PHY packets in the destination or recipient device (as further below in relation to FIG 3B is discussed). The PSDU + CRC bits (for example the scrambled uncoded bits 338 and CRC 340 ) can be encoded at the initial encoding rate and sent to a receiver. The retransmission of failed bits can be continued until successful transmission (for example until successful reception and decoding by a receiver).

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

3B Figure 12 shows an illustrative HARQ receiver-side transmission process 350 in accordance with one or more exemplary embodiments of the present disclosure.

As in 3B shown, the receiver-side HARQ transmission process 350 coded symbols 352 contain (for example, coded symbols 346 from 3A by the sending device 348 from 3A sent). The coded symbols 352 can through the receiving device 354 and to a decoding device 356 the receiving device 354 be sent. The decoding device 356 can use the coded symbols 352 decode what to scrambled uncoded bits 358 and CRC 360 leads. The scrambled uncoded bits 358 and CRC 360 can through the descrambler 362 be descrambled to a PPDU 364 that can contain one or more fields, such as service 366 , PSDU data 368 , Pre-FEC stuffing bit 370 and end 372 . The PSDU data 368 can use an A-MPDU 374 that can contain aggregated MDPUs. Each MPDU of the A-MPDU 374 can use an MPDU limiter (e.g. MPDU limiter 378 , MPDU limiter 386 ), MPDU data (for example MPDU data 380 , MPDU data 386 ) and stuffing bits (for example stuffing bit 382 , Stuffing bit 388 ) contain. Any MPDU data 380 can an MPDU 390 included that from a MAC header 392 , MSDU data 394 and the FCS 396 can exist. A buffer 398 (which may contain one or more HARQ buffers) of the receiving device 354 can store received bits to enable HARQ retransmissions.

In one or more embodiments, after the failure of decoding the received soft bits (e.g. CRC 360 ) - the soft bits in the buffer 398 get saved. The receiving device 354 can send a PHY-NACK (not shown) to a transmitter (e.g. the transmitter device 348 from 3A) send to indicate a package error. Depending on the HARQ regime, a retransmission can mean that the original PSDU is sent again or that the punctured bits are sent (e.g. bits that can be removed after the coding by the coding device 344 from 3A is done) to a possible or desired coding rate in the receiving device 354 to meet. The retransmissions can be continued until the receiving device 354 any PSDU can decode, whereupon the receiving device 354 send a PHY-ACK (not shown). Depending on the buffering capabilities of the receiving device 354 various soft combining approaches can be used.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

4A Figure 12 shows an illustrative downlink HARQ transmission process 400 in accordance with one or more exemplary embodiments of the present disclosure.

As in 4A shown can be the downlink HARQ transmission process 400 during a TXOP 402 occur. One AP 404 can during a TXOP 402 with a STA 406 communicate. The STA 406 can have one or more HARQ buffers (e.g. buffer 408 ) have to get those from the AP 404 to store sent bits if HARQ retransmission is used. The AP 404 can during the TXOP 402 one or more downlink data PPDUs, such as PPDU 410 , PPDU 412 , PPDU 414 and PPDU 416 , to the STA 406 send. In response to each downlink data PPDU, the STA 406 store incorrectly received or decoded bits and can save Ack / Nack frames (e.g. Ack / Nack 418 , Ack / Nack 420 , Ack / Nack 422 , Ack / Nack 424 ) to the AP 404 send back. The ack / nack frames can be sent after an interval (for example a short interframe space, arbitration interframe space, distributed interframe space, extended interframe space, point interframe space or reduced interframe space). For example, the STA 406 after receiving the PPDU 410 an interval 426 wait before they Ack / Nack 418 sends. After receiving the ack / nack 418 can the AP 404 the PPDU 412 send.

In one or more embodiments, the sender-end HARQ transmission process 400 be a HARQ retransmission and combining scheme and can overcome packet error rates. The HARQ transmission process on the transmitter side 400 can also increase the system throughput within a TXOP 402 improve. As soon as the AP 404 and the STA 406 a channel for the TXOP 402 have reserved the AP 404 the PPDU 410 which can contain a PSDU and CRC bits (for example PSDU data 306 and CRC 340 from 3A) . The PPDU 410 may also contain a reference to a HARQ type, and the reference may be in a preamble of the PPDU 410 be included as in terms of 5A will be discussed in more detail.

When the STA 406 the PPDU 410 receives, the STA decodes 406 in one or more embodiments, the PPDU 410 and checks for CRC errors. If a CRC check fails, the STA 406 the coded bits of the PPDU 410 in the buffer 408 buffer.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

4B Figure 12 shows an illustrative uplink HARQ transmission process 450 in accordance with one or more exemplary embodiments of the present disclosure.

As in 4B shown can be the uplink HARQ transmission process 450 during a TXOP 452 occur. One AP 454 can during a TXOP 452 with a STA 456 communicate. The AP 454 can have one or more HARQ buffers (e.g. buffer 458 ) have to get through the STA 456 store sent bits, if HARQ retransmission is used. The AP 454 can uplink communications from the STA 456 trigger by sending one or more trigger frames. For example, the AP 454 a trigger frame (TF) 460 to the STA 456 which can respond by saying that it has an uplink data PPDU (for example the PPDU 464 ) sends. The AP 454 can add another trigger frame (for example TF 466 ) to the STA 456 send. The TF 466 can serve as or contain an ack / nack frame to indicate whether the PPDU 464 has been properly received or decoded (e.g. partially or fully). The TF 466 can also serve as a trigger frame, indicating that the STA 456 another uplink data PPDU (for example the PPDU 468 ) can send. In response to receiving the PPDU 468 can the AP 452 with another trigger frame (for example TF 470 ) reply indicating the receiving status of the PPDU 468 and a subsequent data PPDU transmission from the STA 456 triggers. The STA 456 can be another uplink data PPDU (for example the PPDU 472 ) send, and the AP 452 can be used with another trigger frame (for example TF 474 ) reply. The AP 452 and the STA 456 can wait for a time interval between transmissions (for example a short interframe space, arbitration interframe space, distributed interframe space, extended interframe space, point interframe space or reduced interframe space). For example, the STA 456 after receiving the TF 460 the interval 476 wait before using the PPDU 464 sends. After receiving the PPDU 464 can the AP 452 on interval 478 wait before it the TF 466 sends.

In one or more embodiments, the STA 456 a HARQ state machine (for example HARQ state machine 342 from 3A) to keep track of the HARQ transmissions. A HARQ state machine can display a transmission number and the required PSDU bits that must be buffered to enable different HARQ types or modes. The uplink HARQ transmission process 450 can continue until a transmission is successful (for example, until an uplink PPDU from the STA 456 properly received or decoded), or until a maximum number of HARQ transmissions is reached. For both uplink and downlink transmissions, a retransmission count may need to be specified in a packet.

In one or more embodiments, a similar approach to PHY addressing may combine BSS color and STA ID to create the STA (e.g., the STA 456 ) that have an uplink PPDU (for example the PPDU 464 ) sends to uniquely identify and a corresponding block acknowledgment from the AP 454 to identify.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

5A Figure 10 illustrates an illustrative section 500 a preamble field of a frame indicating a HARQ type according to one or more exemplary embodiments of the present disclosure.

As in 5A can see the section 500 of a preamble field Part of a downlink PPDU (for example the PPDU 410 from 4A) and can contain one or more fields or subfields. For example, the section 500 a Legacy Short Training Field (L-STF 502 ), a Legacy Long Training Field (L-LTF 504 ), a legacy signal field (L-SIG 506 ), a repeated L-SIG field (RL-SIG 508 ), a High Efficiency Signal A field (HE-SIG-A 510 ), a HE STF field (HE-STF 512 ), a HE LTF field (HE-LTF 514 ) and a packet extension field (PE 516 ) contain. The HE-SIG-A 510 can contain two fields, HE-SIG-A1 518 and HE-SIG-A2 520 that is a bit (for example bit B14 ) to identify a HARQ mode or type.

In one or more embodiments, the HARQ type or mode can be identified using one or more bits of HE-SIG-A1 518 and HE-SIG-A2 520 can be specified. For example, a (0,0) value for B14 from HE-SIG-A1 518 and HE-SIG-A2 520 correspond to a chase combining HARQ mode or type. With the chase combination, the same information and parity bits can be sent for each HARQ transmission. The chase combination can be used to increase the signal-to-noise ratio (SNR), such as Eb / No, in the receiving device using maximum ratio combining techniques, which also creates a packet error ratio (packet error Ratio, PER) can be reduced. A (0.1) value for B14 by HE-SIG-A1 518 and HE-SIG-A2 520 may correspond to a HARQ mode or type with incremental redundancy. With incremental redundancy, different sets of parity and information bits can be sent with each HARQ transmission. The technique of incremental redundancy can increase the SNR (e.g. Eb / No) when the transmission of a bit is repeated and can also allow coding gains in PER performance. A (1,0) or (1,1) value for B14 from HE-SIG-A1 518 and HE-SIG-A2 520 can be reserved for another HARQ type.

As in 5A shown, the section 500 of a preamble field Part of an uplink Ack / Nack frame (for example Ack / Nack 418 from 4A) which can have a value (for example value = NACK, if a CRC check in the STA fails). If a CRC check in the STA is successful (for example, if the receive status of a received PPDU is successful), the STA can generate and send an ack / nack frame with a value (for example value = ACK) to indicate that the reception status was successful. The ack / nack information can be expressed using a bit (for example, bit B14 ) in HE-SIG-A1 of the PHY-Ack / Nack frame, which can be a null data packet type.

In one or more embodiments, STA addressing can be performed using a PHY header. An AP may contain a PHY address as a combination of a BSS color concatenated with an STA identifier to uniquely identify a PHY frame as being addressed to a particular STA. An STA may include a PHY address (e.g., BSS color plus linkage identifier) in a PHY header so that APs and / or other nodes or devices can recognize that a PHY ack / nack frame is being sent by a particular STA has been.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

5B Figure 10 illustrates an illustrative section 550 a HARQ acknowledgment frame for uplink transmissions in accordance with one or more exemplary embodiments of the present disclosure.

As in 5B shown, a HARQ ack / nack frame (e.g. TF 466 from 4B) a section 500 with one or more fields or subfields included. For example, the HARQ ack / nack frame can be a frame control field (frame control 552 ), a permanent field (for example duration 554 ), a recipient address field (for example RA 556 ), a sender address field (for example TA 558 ), a general information field (for example general information 560 ), one or more user information fields (e.g. user information 562 , User information 564 ), a stuffing bit field (stuffing bits 566 ) and a Frame Check Sequence field (FCS 568 ) contain. The general information 560 may contain information for each receiving device (e.g. there may be multiple receiving devices in a MU environment), and each user information field can be specific to each receiving device. For example, the user information 562 refer to a first receiving device, and the user information 564 can refer to a second receiving device. Each user information field (for example, user information 564 ) an Access Identifier field (AID 570 ), a Resource Unit Allocation field (RU assignment 572 ), an encoding type field 574 , a Modulation and Coding Scheme field (MCS 576 ), a dual carrier modulation field (DCM 578 ), a station service allocation (SS allocation 580 ), a target Receive Signal Strength Indicator field (target RSSI 582 ), an Ack / Nack field (ACK / NACK 584 ) and a trigger-dependent general information field (trigger-independent general information 586 ) contain.

The fields of the section 500 can contain a number of octets. For example, the frame control 552 have two octets, the duration 554 can have two octets, the RA 556 can have six octets, the TA 558 can have six octets, the general information 560 can have eight or more octets representing user information 562 and the user information 564 can each have five or more octets, the stuffing bits 566 can have a variable number of octets, and the FCS 568 can have four octets. The fields of each user information field can have a number of bits. For example, AID 570 have twelve bits, the RU assignment 572 can be eight bits, the coding type 574 may have a bit that mcs 576 can have four bits, the DCM 578 can have one bit, the SS assignment 580 can have six bits representing the destination RSSI 582 can have seven bits, the ACK / NACK 584 can have one bit, and the trigger-dependent general information 586 can have a variable number of bits.

In one or more embodiments, in an uplink HARQ operation, an AP (e.g., AP 454 from 4B) the transmission with the help of a trigger frame (for example TF 460 from 4B) trigger. After an interval (for example, interval 476 from 4B) can an STA (for example the STA 456 from 4B) an uplink PPDU (for example the PPDU 464 from 4B) which can contain PSDU and CRC bits encoded using an initial coding rate and the AP can perform a PHY CRC check. If the CRC check fails, the AP can store the received soft bits in a buffer (e.g. buffer 458 from 4B) and the AP can save an Ack / Nack PPDU (for example TF 466 ) to the STA to indicate the status of a failed reception. The Ack / Nack PPDU can take the form or structure of a trigger frame that includes the section 500 contains, use. For example, the ack / nack frame can be used both as a PPDU, which is a trigger frame (for example section 500 ) as well as serve as an ack / nack control frame. The ack / nack frame can be used as a Trigger frame and the trigger-dependent general information 586 can indicate a HARQ mode or type (e.g. chase combination, incremental redundancy). A trigger type field value can indicate the trigger type. For example, a trigger type field value of 0 can indicate a base trigger, a trigger type field value of 1 can indicate a beamforming report query, a trigger type field value of 7 can indicate a null packet feedback report query, a trigger type field value of 8 can indicate a HARQ chase - Indicate combination triggers, and a trigger type field value of 9 can indicate a HARQ incremental redundancy trigger. To ACK / NACK 584 can display a bit (for example bit B39 ) in a user information field (e.g. user information 564 ) be used.

In one or more embodiments, in order to keep track of HARQ transmissions, a STA may operate a state machine (e.g., the HARQ state machine 342 from 3A) which can indicate a transmission number and a required number of PSDU bits that must be buffered in the buffer to enable different HARQ types or modes. A HARQ operation can continue until a transmission is successful or until a maximum number of HARQ transmissions is reached.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

6A illustrates a diagram 600 FIG. 12 depicting a bit error rate for retransmission operations in accordance with one or more exemplary embodiments of the present disclosure.

As in 6A to see shows the diagram 600 a bit error rate over an SNR (in dB) for several retransmission techniques, including ARQ 602 (e.g. for up to three retransmissions), ARQ 604 (e.g. for up to two retransmissions), HARQ incremental redundancy 606 (for example for up to three transmission repetitions), HARQ incremental redundancy 608 (e.g. for up to two retransmissions), HARQ-Chase combination 610 (e.g. for up to one retransmission), HARQ incremental redundancy 612 (e.g. for up to one retransmission), HARQ chase combination 614 (e.g. for up to three retransmissions), HARQ chase combination 616 (e.g. for up to two retransmissions), HARQ-Chase combination 618 (e.g. for up to one retransmission) and no retransmissions 620 .

6B illustrates a diagram 630 FIG. 12 depicting a packet error rate for retransmission operations in accordance with one or more exemplary embodiments of the present disclosure.

As in 6B to see shows the diagram 630 a PER over an SNR (in dB) for several retransmission techniques, HARQ-Chase combination 632 (e.g. for up to three retransmissions), HARQ chase combination 634 (e.g. for up to two retransmissions), HARQ incremental redundancy 636 (for example for up to three transmission repetitions), HARQ incremental redundancy 638 (e.g. for up to two retransmissions), HARQ-Chase combination 640 (e.g. for up to one retransmission), HARQ incremental redundancy 642 (e.g. for up to one retransmission), HARQ chase combination 644 (e.g. for up to three retransmissions), HARQ chase combination 646 (e.g. for up to two retransmissions), HARQ-Chase combination 648 (for example, for up to one retransmission), and no retransmissions 650 .

6C illustrates a diagram 660 FIG. 12 depicting throughput for retransmission operations in accordance with one or more exemplary embodiments of the present disclosure.

As in 6C to see shows the diagram 660 the throughput over an SNR (in dB) for several retransmission techniques, including HARQ chase combination 662 (e.g. for up to three retransmissions), HARQ chase combination 664 (e.g. for up to two retransmissions), HARQ incremental redundancy 666 (for example for up to three transmission repetitions), HARQ incremental redundancy 668 (e.g. for up to two retransmissions), HARQ-Chase combination 670 (e.g. for up to one retransmission), HARQ incremental redundancy 672 (for example, for up to one retransmission), and other retransmission techniques 674 (for example, ARQ for up to three retransmissions, ARQ for up to two retransmissions, and ARQ for up to one retransmission).

As in the 6A , 6B and 6C performance ratings of HARQ and ARQ types are shown, including HARQ modes with Chase combination and incremental redundancy, and the HARQ modes are compared to the ARQ modes (e.g., ARQ modes used in a Wi-Fi binary convolutional code encoder with a mother rate = ½, with different punctured codes - rates used including 5/6, 3/4 and 2/3). For example, Binary Phase Shift Keying (BPSK) modulation with channel modulation can be used as additive white Gaussian noise. A maximum number of PPDU retransmissions of four can be considered. Different package sizes can be evaluated. In a simulation, in the event of a decoding error (e.g. receive failed status) in a receiving device, a transmitter can use the highest coding rate (e.g. 5/6), and a nack can be sent in response to the error. With Chase Combining HARQ, a transmitter can retransmit with the same code rate until a maximum number of retransmissions has been reached or until a successful transmission takes place. With HARQ with incremental redundancy, a sender can retransmit punctured bits the first time a nack is received in order to achieve an effective rate of 3/4, and can send additional parity bits during subsequent nack reception, for example to increase the code rate incrementally Reduce 2/3 and then 1/2. Bit error rate, PER and throughput can be compared for the HARQ modes with those of the ARQ modes. Under ARQ, a packet is simply retransmitted when a nack notice is given. Throughput can be calculated as a total number of successfully received new data bits per unit of time, which unit of time may represent the time it takes to retransmit a packet of a given length. A packet size of 1500 bytes can be used. The results of the simulation can be summarized as follows. With the chase combining HARQ, the decoding gain and the throughput gain can be the lowest. However, at a lower initial coding rate, the chase combining HARQ gains may be closer to other types. Chase Combining HARQ can have the lowest cost complexity and memory requirements compared to other modes. With HARQ with incremental redundancy, the decoding gain and the throughput gain can be highest. Hence, the HARQ with incremental redundancy may be better for higher MCS and may be better for lower initial MCS. HARQ with incremental redundancy may require the largest amount of memory (e.g. for soft combining) and may require additional signaling to indicate a retransmission number.

7th shows an illustrative HARQ segmentation 700 in accordance with one or more exemplary embodiments of the present disclosure.

As in 7th shown, the HARQ segmentation 700 dividing an A-MPDU 702 into one or more segments (for example MPDU segment 704 , MPDU segment 706 ) contain. Each segment can contain one or more MPDUs. For example, the MPDU segment 704 MPDU 708 and MPDU 710 and the MPDU segment 706 can MPDU 712 and MPDU 714 contain. Each segment can go through the scrambler 716 being scrambled, resulting in one or more scrambled segments (for example, the scrambled segment 718 with stuffing bit 720 and CRC 722 , and the scrambled segment 724 with stuffing bit 726 and CRC 728 ). The scrambled segments can with the coding device 730 encoded resulting in an encoded PPDU 732 leads. The PPDU 732 can be a preamble 734 and one or more code words (for example CW 736 , CW 738 , CW 740 , CW 742 and CW 744 ) contain. For example, corresponds to the MPDU segment 704 CW 736 , CW 738 and CW 740 while the MPDU segment 706 CW 742 and CW 744 can correspond.

In one or more embodiments, each MPDU segment (e.g., MPDU segment 704 ) an integer number of MPDUs (for example MPDU 708 , MPDU 710 ) contain. CRC fields (for example CRC 722 , CRC 728 ) can be added to enable an ack / nack at the PHY level for HARQ. Signaling fields in a PHY preamble (for example, preamble 734 ) can be added to identify the boundaries of each segment.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

8th shows an illustrative process 800 for an improved HARQ in accordance with one or more exemplary embodiments of the present disclosure.

As in 8th can see the process 800 a transmitter device 802 and a receiving device 804 contain. The transmitter device 802 can have one or more segments (for example, segments A, B, and C) in a PPDU 806 send. The receiving device 804 can the PPDU 806 receive. Using the buffer 808 can the receiving device 804 the segments of the PPDU 806 to save. When the PPDU 806 For example, if it has segments A, B and C, so can the buffers 808 save the segments A, B and C. If the segments A, B and C have been correctly received and decoded (for example a status “reception successful”), the Receiver device 804 a PHY-ACK / NACK bitmap 810 send the receiving status of the PPDU 806 indicates. For example, a 1-bit can be in the bitmap 810 indicate that a segment was received correctly and a 0 bit in the bitmap 810 can indicate that a segment was not received properly (for example, a status of "reception failed"). If the segments A, B and C of the PPDU 806 by the receiving device 804 are properly received, the bitmap 810 Display a 1 for segment A, a 1 for segment B, and a 1 for segment C. When the buffers 808 have an additional buffer (for example the fourth buffer of the buffers 808 ) and not a segment of the PPDU 806 is stored in this additional buffer so the bitmap 810 a 0 for the fourth buffer of the buffers 808 Show. Because the bitmap 810 the transmitter device 802 indicates that all segments of the PPDU 806 properly received, the sending device 802 Send additional segments without segments of the PPDU 806 to have to send again. For example, the transmitter device 802 Segments D, E, F and G in the PPDU 812 send. Because the segments A, B and C of the PPDU 806 possibly a CRC check in the receiving device 804 have passed (for example the status "reception successful"), the buffers 808 emptied, freed or cleared, leaving the buffers 808 can be empty. When the PPDU 812 by the receiving device 804 is received, the receiving device 804 another CRC check of segments D, E, F and G of the PPDU 810 To run. For example, if segments D and F fail the CRC check, segments D and F can be in the buffers 808 can be stored, and segments E and G can be retrieved from the buffers 808 and a PHY-ACK / NACK bitmap 814 can to the transmitter device 802 sent to display a 0-bit for segment D (for example status "reception failed"), to display a 1-bit for segment E (for example status "reception successful"), to display a 0 bit for segment F ( for example status "reception failed"), and to display a 1-bit for segment G (for example status "reception successful"). The buffers 808 can add the failed segments D and F to the front end of the buffer 808 (for example a buffer queue). The transmitter device 802 can be based on the bitmap 812 determine that segments D and F of the PPDU 812 by the receiving device 804 was not received or decoded properly. Therefore, the transmitter device 802 segments D and F of the PPDU 816 Send again together with segment H. The receiving device 804 can put the segments D, F and H in the buffers 808 to save. Because segments D and F are already in the buffers 808 can be stored, so there can be two segments D and two segments F in the buffers 808 and a segment H in the buffers 808 give. If all segments D, F and H of the PPDU 816 If a CRC check passes, a PHY-ACK / NACK bitmap 818 by the receiving device 804 to the transmitter device 802 sent to a reception success of each segment of the PPDU 816 (for example a 1-bit for segment D, a 1-bit for segment F and a 1-bit for segment H).

In one or more embodiments, the receiving device can 804 to process segments of the PPDUs, signaling fields in a PHY preamble (for example PHY preamble 734 from 7th ) use each HARQ segment (for example, segments A, B, C and D of the PPDU 806 ) to identify. Each identified segment can be stored in a separate HARQ buffer (e.g. the buffers 808 ) get saved. The number of buffers in the buffers 808 can be set to a maximum number of segments M _Max that can be provided in one transmission. After the receiving device 804 Each segment a PPDU has identified, the segments can be stored sequentially in the buffers 808 (for example, segment A can be stored in a first buffer, segment B can be stored in a second buffer, etc.). Each segment can be accessed by the receiving device 804 can be decoded, which can then perform a CRC check on each segment. Successfully received segments can then be sent to the MAC layer for further processing and can be removed from the buffers 808 to be deleted. The next non-empty buffer of the buffers 808 can be promoted to the next position in a buffer queue. Because the segments can contain a number of MPDUs (for example MPDU 708 , MPDU 710 from 7th ), the MPDUs of a segment can be processed individually and through a MAC layer of the receiving device 804 beeing confirmed. Segments that do not pass a CRC check can be retransmitted in the buffers for further processing in accordance with HARQ 808 remain.

In one or more embodiments, a data source (e.g., the sending device 802 ) a HARQ transmission (for example the PPDU 806 ) initiate. The receiving device 804 can be segments, for example segments A, B, C, from the PPDU 806 extract and can perform CRC checks on each segment. The receiving device 804 can be a PHY-ACK / NACK bitmap (for example the bitmap 810 ) generate and send to the sending device 802 indicate which segments were received or decoded correctly or incorrectly. The bitmap (for example the bitmap 810 ) can be of size M _Max , where M _Max based on a maximum number of Segments that can be transmitted at the same time can be set. The fields of a bitmap can be filled in in an order that corresponds to the segments received (for example, if segments A, B and C are received, the bitmap can 810 Fields in an order of A, B and C to indicate the reception status of each segment). By using the sequence of the segments in the bitmap, it can be avoided, for example, that each segment number has to be specified in a PHY-ACK / NACK transmission, which reduces the administrative data overhead. M _Max can also show how many buffers are in the buffers 808 and can be a system parameter and designed based on the maximum PSDU length and minimum codeword size used by a system.

In one or more embodiments, a PHY-ACK / NACK bitmap (e.g., the bitmap 810 ) by the receiving device 804 be sent. Upon receipt of the bitmap, the sending device 802 determine whether or not a HARQ segment was received properly using the indicators in the bitmap. If an indicator shows that a segment has been properly received or decoded, this segment can be retrieved from a transmit buffer (e.g. HARQ state machine 342 from 3A) removed. If a segment is not received properly, the segment is inserted into a next PSDU / PPDU in the same order as it was transmitted in a previous PSDU / PPDU (for example, if segment D and segment F of the PPDU 810 fail, segment D and segment F can be retransmitted in this order before all subsequent segments, such as segment H, for example). If the receive status of a segment is "failed", the bitmap can use a 0 bit to indicate a NACK (for example, the 0 bit can be specified in an ACK / NACK CONF field of a PHY preamble of the bitmap), so that the receiving device 804 the buffers 808 empty and avoid buffer damage. When the receiving device 804 a signal field (e.g., a next generation signal field) in a PHY preamble (e.g. the PHY preamble 734 from 7th ) is not processed, no ACK can be sent to the sending device 802 and an entire HARQ-PPDU can be transmitted (for example to restore the MAC level), and an ACK / NACK CONF field of a bitmap can be set to 0 to indicate a reception status "failed".

In one or more embodiments, the receiving device can 804 in a downlink operation ACK / NACK frames (for example PHY-ACK / NACK bitmap 810 ) in an uplink direction in response to an MU downlink PPDU (for example the PPDU 806 ) transfer. Uplink ACK / NACK frames can use a MU-PPDU frame format. For example, uplink ACK / NACK frames can have the bitmap with a number of bits M _Max per user, and ACK / NACK information can be contained in a PHY header or in PHY payload.

In one or more embodiments, in an uplink operation, ACK / NACK frames can be sent in a downlink direction by the sender device 802 (for example, a reverse process of what is in 8th in response to a MU uplink PPDU transmission from the recipient device 804 be transmitted. ACK / NACK frames can be sent by the sending device 802 as part of either a trigger frame (e.g. TF 260 from 2 B) or a multi-STA block ACK frame (for example ACK 270 from 2 B) be sent. The ACK / NACK frames can contain ACK / NACK bitmaps with a number of bits per user M _Max . ACK / NACK information can be contained in a PHY header or in PHY payload data.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

9 shows a section 900 the next generation HARQ frame in accordance with one or more embodiments of the present disclosure.

As in 9 shown, the section 900 the HARQ frames contain one or more fields that can be used to indicate segment boundaries and successful ACK / NACK reception. For example, the section 900 a resource unit allocation field (for example RU allocation 902 ) and one or more user fields (e.g. user field 904 , User field 908 , User field 910 and user field 912 ) contain. Each user field can contain one or more fields, such as an ACK / NACK field (e.g. ACK / NACK 914 ), a segment number field (for example M_NUM_SEG 916 ) and one or more segment length fields (for example LEN_SEG_1 918 , LEN_SEG_2 920 and LEN_SEG_M 922 ).

In one or more embodiments, fields of the section 900 Display segment boundaries in a received HARQ-PPDU (for example segment A, segment B and segment C of the PPDU 806 from 8th ). M_NUM_SEG 916 can indicate a total number of segments in a PPDU transmission. For each segment in a PPDU, a LEN_SEG field can specify the length of the segment Show. For example, LEN_SEG_1 918 display the length of the first segment, LEN_SEG_2920 can display the length of a second segment, and LEN_SEG_M 922 can display the length of the M-th segment of a PPDU. ACK / NACK 914 may be a single bit ACK / NACK CONF field to indicate to a receiving device whether a PHY-ACK / NACK was properly received for a previous data transfer. When ACK / NACK 914 is set to 1, a receiver can maintain a HARQ buffer in the form updated by the last transmission. When ACK / NACK 914 is set to 0, a receiver may flush its HARQ buffer assuming that a sender device did not properly receive a previous ACK / NACK transmission. Using the M_NUM_SEG field 916 and each LEN_SEG field can have a receiver device identify each segment in a PPDU without the PPDU having to contain each segment number.

In one or more embodiments, the RU mapping 902 a general field 914 be, and the user fields (e.g. user field 904 , User field 908 , User field 910 and user field 912 ) can be part of a user-specific field 916 be. The general field 914 and the user-specific field 916 may form a next generation HE-SIG-B field that can be used to indicate signaling information per user to help a device identify HARQ segments and their respective sizes. Bits can be used in the custom field of any MU-STA that is compatible with the custom field 916 is linked. For example, ACK / NACK 914 use a single bit, M_NUM_SEG 916 can use a number of bits corresponding to the function log2 Mmax (where Mmax can indicate the maximum number of segments, for example) and each LEN_SEG field can use a variable number of bits based on the length of the segment.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

10A Figure 10 illustrates a flow diagram of an illustrative process 1000 for improved retransmission in accordance with one or more exemplary embodiments of the present disclosure.

At block 1002 one or more processors of a device (e.g. AP 102 from 1 ) determine a first Wi-Fi PPDU. The first Wi-Fi PPDU may contain an indication of a HARQ retransmission request and one or more segments. The HARQ retransmission request may indicate a chase combining mode or an incremental redundancy mode, and the indication may be in a HE-SIG-A field (e.g. HE-SIG-A 510 from 5A) the first Wi-Fi PPDU to be given.

At block 1004 one or more processors of the device may cause the device to store the one or more segments in one or more buffers. The segments can be stored in separate buffers and deleted from a respective buffer when the apparatus determines that the respective segment has been properly received or decoded.

At block 1006 one or more processors of the device may cause the device to send the first Wi-Fi PPDU to a station device during a TXOP. The Wi-Fi PPDU can contain one or more segments. The station device may be one of a plurality of station devices that can receive the first Wi-Fi PPDU. The first Wi-Fi PPDU can display the number of segments in the Wi-Fi PPDU and the length of each segment.

At block 1008 one or more processors of the device may identify an acknowledgment frame received from the station device. The confirmation frame can indicate a reception status of the first Wi-Fi PPDU (for example, using a bitmap). The reception status can indicate a success of reception of a first segment of the one or more segments, and the device can remove the first segment from the one or more buffers. The reception status can indicate a reception error of the first segment; in this case the device can still store the first segment in the one or more buffers and can retransmit the first segment in a subsequent PPDU. If the reception status indicates that the first segment was successfully received or decoded and that there is a reception error in a second segment of the one or more segments, the second segment can remain in the buffer and can be sent again in a subsequent PPDU.

At block 1010 one or more processors of the device can cause the device to send a second Wi-Fi PPDU during TXOP. The second Wi-Fi PPDU may include at least one of the segments from the first Wi-Fi PPDU (for example, a segment associated with a reception failure). The second Wi-Fi PPDU may also contain an indication of Acknowledgment Received Status, which can indicate whether the Acknowledgment frame was properly received or decoded.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

10B Figure 10 illustrates a flow diagram of an illustrative process 1030 for improved retransmission in accordance with one or more exemplary embodiments of the present disclosure.

At block 1032 can be one or more processors of a device (e.g., one or more user devices 120 from 1 ) Identify a first Wi-Fi PPDU used by a first device (e.g. AP 102 from 1 ) was sent during a TXOP. The first Wi-Fi PPDU can contain an indication of a HARQ request and one or more segments. The indication of a HARQ request can include an indication of a chase combining mode or an incremental redundancy mode, and the indication can be in a HE-SIG-A field (e.g. HE-SIG-A 510 from 5 ) the first Wi-Fi PPDU.

At block 1034 one or more processors of the device may cause the device to store the one or more segments in one or more buffers. Each segment can be stored in a respective buffer and cleared from the respective buffer when the device determines that the segment was properly received or decoded.

At block 1036 one or more processors of the device may determine the one or more segments of the first Wi-Fi PPDU. The determination of the one or more segments can relate to the execution of a cyclical redundancy check. If a segment passes a cyclic redundancy check, the segment can be deleted from the buffers, but if a segment does not pass a cyclic redundancy check, the segment can remain in the buffers.

At block 1038 one or more processors of the device can cause the device to send an acknowledgment frame to the first device. The confirmation frame can indicate a reception status of the first Wi-Fi PPDU and can be in the form of a bitmap. The acknowledgment frame can indicate a bit for each segment in the first Wi-Fi PPDU, with each bit indicating a reception success or failure associated with this segment, depending on whether this segment passed the cyclic redundancy check or not.

At block 1040 one or more processors of the device may identify a second Wi-Fi PPDU received from the first device during the TXOP. The second Wi-Fi PPDU can include at least one segment of the one or more segments of the first PPDU. For example, a segment whose reception status was “failed” can be retransmitted in the second Wi-Fi PPDU.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

10C Figure 10 illustrates a flow diagram of an illustrative process 1050 for improved retransmission in accordance with one or more exemplary embodiments of the present disclosure.

At block 1052 one or more processors of a device (e.g. the AP 102 from 1 ) cause the device to send a trigger frame during a TXOP. The trigger frame can be a first trigger frame and the device can send subsequent trigger frames.

At block 1054 For example, one or more processors of the device may identify a first Wi-Fi PPDU received from a station device. The first Wi-Fi PPDU can be an uplink transmission and can contain a first indication of a HARQ request and one or more segments. The first Wi-Fi PPDU can contain a field that indicates how many segments are in the first Wi-Fi PPDU and one or more fields that indicate the length of each field. The reference to a HARQ request can relate to a chase combining mode or an incremental redundancy mode and can be represented by a HE-SIG-A field (for example HE-SIG-A 510 in 5 ) must be specified.

At block 1056 one or more processors of the device may cause the device to store one or more segments of the first Wi-Fi PPDU in one or more buffers. Each segment can be stored in a separate buffer until the device determines that a respective segment has been successfully received or decoded, at which point the device can remove the respective segment from its respective buffer.

At block 1058 one or more processors of the device can do one or the other determine several segments. Determining the one or more segments may relate to performing a cyclical redundancy check on each segment. If a cyclic redundancy check runs successfully on a segment, the segment can be deleted from the buffers, and if a cyclic redundancy check fails on a segment, the failed segment can remain in the buffers. The reception success or failure of each segment can be displayed with a bitmap that contains an entry for each segment in the order in which the segments were received.

At block 1060 For example, the one or more processors of the device may cause the device to send an acknowledgment frame to the station device. The acknowledgment frame can contain a bitmap indicating the reception status of the segments of the Wi-Fi PPDU. The acknowledgment frame can be another trigger frame or can be a separate frame and another trigger frame can follow the separate acknowledgment frame to trigger another uplink transmission. If the confirmation frame is another trigger frame, the trigger frame may contain a custom field indicating a number of segments and a length of each segment.

At block 1062 For example, the one or more processors of the device may identify a second Wi-Fi PPDU that was received by the station device. If a segment of the first Wi-Fi PPDU was displayed as incorrectly received or decoded, the faulty segment can be included in the second Wi-Fi PPDU.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

10D Figure 10 illustrates a flow diagram of an illustrative process 1070 for improved retransmission in accordance with one or more exemplary embodiments of the present disclosure.

At block 1072 may be one or more processors of a device (e.g., the one or more user devices 120 from 1 Identify a trigger frame received by an AP during a TXOP. The trigger frame can trigger an uplink transmission.

At block 1074 one or more processors of the device can cause the device to send a first Wi-Fi PPDU to the AP. The first Wi-Fi PPDU may contain an indication of a HARQ retransmission request and one or more segments. The first Wi-Fi PPDU can contain an indication of the number of segments in the PPDU and the length of each segment.

At block 1076 one or more processors of the device can identify an acknowledgment frame received from the AP. The acknowledgment frame can indicate a reception status of the first Wi-Fi PPDU and can be another trigger frame or a separate frame, and another trigger frame can follow the acknowledgment frame to trigger another uplink transmission. The receive status can be in the form of a bitmap indicating whether each segment of the PPDU was properly received or decoded.

At block 1078 one or more processors of the device can cause the device to send a second Wi-Fi PPDU to the access point during the TXOP. The second Wi-Fi PPDU may contain a segment from the first Wi-Fi PPDU that may not have been received or decoded properly.

It is to be understood that the above descriptions are intended to be illustrative and non-restrictive.

11 Figure 12 shows a functional diagram of an exemplary communication station 1100 according to some embodiments. Illustrated in one embodiment 11 a functional block diagram of a communication station acting as an AP 102 ( 1 ) or as a user device 120 ( 1 ) may be suitable, according to some embodiments. The communication station 1100 Can also be used as a handheld device, a mobile device, a cell phone, a smartphone, a tablet, a netbook, a wireless terminal, a laptop computer, a wearable computing device, a femtocell, a high data rate subscriber station (HDR), an access point, access terminal or other personal communication system (PCS) device may be suitable.

The communication station 1100 can be a communication circuit 1102 and a transceiver 1110 for sending and receiving signals to and from other communication stations using one or more antennas 1101 contain. The communication circuit 1102 may contain a circuit that controls the communication in the bit transmission layer (Physical Layer, PHY) and / or the communication of the media access control (Medium Access Control, MAC) to control access to the wireless medium and / or other communication layers for sending and receiving signals. The communication station 1100 can also be a processing circuit 1106 and memory 1108 designed to perform the operations described herein. In some embodiments, the communication circuit 1102 and the processing circuit 1106 be configured to use the 2A , 2 B , 3A , 3B , 4A , 4B , 5A , 5B 6A, 6B, 6C, 7th , 8th , 9 , 10A , 10B , 10C and 10D perform the operations described.

According to some embodiments, the communication circuit 1102 be designed to compete on a wireless medium and configure frames or packets for transmission over the wireless medium. The communication circuit 1102 can be designed to send and receive signals. The communication circuit 1102 may also include circuitry for modulating or demodulating, upconverting or downconverting, filtering, amplifying, etc. In some embodiments, the processing circuit 1106 the communication station 1100 contain one or more processors. In other embodiments, two or more antennas 1101 with the communication circuit 1102 be coupled, which is designed to send and receive signals. The memory 1108 can store information to the processing circuit 1106 to configure, to perform operations to configure and send message frames, and to perform the various operations described herein. The memory 1108 may contain any type of memory, including non-volatile memory, to store information in a form readable by a machine (e.g., a computer). For example, the memory 1108 a computer readable storage device, read-only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash storage devices, and other storage devices and media.

In some embodiments, the communication station 1100 Be part of a portable wireless communication device, such as a personal digital assistant (PDA), a laptop or portable computer with wireless communication capability, a web tablet, a wireless phone, a smartphone, a wireless headset, a pager, an instant messaging device , digital camera, access point, television, medical device (e.g., heart rate monitor, blood pressure monitor, etc.), wearable computing device, or any other device that can wirelessly receive and / or send information.

In some embodiments, the communication station 1100 one or more antennas 1101 contain. The antennas 1101 may include one or more directional or omnidirectional antennas, including, for example, dipole antennas, monopole antennas, patch antennas, loop antennas, microstrip antennas, or other types of antennas suitable for transmitting RF signals. In some embodiments, a single multi-aperture antenna may be used instead of two or more antennas. In these embodiments, each aperture can be viewed as a separate antenna. In some multiple-input-multiple-output (MIMO) embodiments, the antennas can be effectively separated because of the spatial diversity and different channel characteristics that may result between each of the antennas and the antennas of a broadcast station.

In some embodiments, the communication station 1100 contain one or more of a keyboard, display, non-volatile memory port, multiple antennas, graphics processor, application processor, speakers, and other mobile device elements. The display can be an LCD screen including a touch screen.

Although the communication station 1100 illustrated with multiple separate functional elements, two or more of the functional elements can be combined and implemented by combinations of software configured elements such as processing elements including digital signal processors (DSPs) and / or other hardware elements. Some elements may include, for example, one or more microprocessors, DSPs, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), radio frequency integrated circuits (RFICs), and combinations of various hardware and logic circuits to perform at least the functions described herein. In some embodiments, the functional elements of the communication station 1100 refer to one or more processes running in one or more processing elements.

Certain embodiments can be implemented in any one or a combination of hardware, firmware, and software. Other embodiments can also be implemented as instructions based on a computer readable storage devices are stored which can be read and executed by at least one processor to carry out the operations described herein. A computer readable storage device may include any non-transitory storage mechanism for storing information in a machine (e.g., computer) readable form. For example, a computer readable storage device may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash memory devices, and other storage devices and media. In some embodiments, the communication station 700 contain one or more processors and can be configured with instructions stored on a computer readable storage device.

12 Figure 10 illustrates a block diagram of an example of a machine 1200 or a system on which one or more of the techniques (e.g., methodologies) discussed herein can be carried out. In other embodiments, the machine 1200 work as a standalone device or can be connected (e.g. networked) to other machines. In a networked application, the machine can 1200 operate in the capacity of a server machine, a client machine, or both in server-client network environments. In one example, the machine can 1200 operate as a peer machine in peer-to-peer (P2P) network environments (or other distributed network environments). The machine 1200 can be a personal computer (PC), a tablet PC, a set-top box (STB), a personal digital assistant (PDA), a mobile phone, a wearable computing device, a web device, a network router, a switch or be a bridge or any machine capable of executing instructions (sequential or otherwise) specifying actions to be performed by that machine, such as a base station. Furthermore, while only a single machine is illustrated, the term “machine” is to be understood to include any collection of machines that individually or collectively execute a set (or sets) of instructions to perform one or more of the Execute the methodologies discussed in this text, such as cloud computing, software as a service (SaaS) or other computer cluster configurations.

Examples as described herein may include or operate on the basis of logic or a series of components, modules, or mechanisms. Modules are tangible entities (e.g. hardware) that are capable of performing certain operations when they are in use. One module contains hardware. In one example, the hardware can be specially configured to perform a specific operation (e.g., hardwired). In another example, the hardware may include configurable execution units (e.g., transistors, circuitry, etc.) and a computer readable medium containing instructions, the instructions configuring the execution units to perform a particular operation when they are operational. The configuration can take place under the guidance of the execution units or a loading mechanism. Accordingly, the execution units are communicatively coupled to the computer-readable medium when the device is in operation. In this example, the execution units can be a member of more than a single module. For example, the execution units can be configured during operation by a first set of instructions to implement a first module at a first point in time and can be reconfigured using a second set of instructions to implement a second module at a second point in time.

The machine (e.g., a computer system) 1200 may be a hardware processor 1202 (for example, a central processing unit (CPU), a graphics processing unit (GPU), a hardware processor core, or any combination thereof), a main memory 1204 and a static memory 1206 some or all of which can communicate with one another via an intermediate link (e.g., bus) 1208. The machine 1200 can also include a power management device 1232 , a graphics display device 1210 , an alphanumeric input device 1212 (e.g. a keyboard) and a user interface (UI) navigation device 1214 (for example a mouse) included. In one example, the graphics display device 1210 , the alphanumeric input device 1212 and the UI navigation device 1214 be a touch screen display. The machine 1200 In addition, a memory device (that is to say a control unit) 1216, a signal generation device 1218 (e.g. a loudspeaker), an improved retransmission device 1219 , a network interface device, or a transceiver 1220 who have one or more antennas 1230 is coupled, and one or more sensors 1228 , such as a Global Positioning System (GPS) sensor, compass, accelerometer, or other sensor. The machine 1200 can be an output controller 1234 such as a serial (e.g. Universal Serial Bus (USB)), parallel or other wired or wireless (e.g. infrared (IR), near field communication (NFC) etc.) Connection for communicating with, or controlling, one or more peripheral devices (e.g. a printer, a card reader, etc.).

The storage device 1216 can be a machine-readable medium 1222 contain on which one or more sets of data structures or instructions 1224 (for example software) that embodies or is used by one or more of the techniques or functions described in this text. The instructions 1224 can get through the machine while they are running 1200 also completely or at least partially within the main memory 1204 , within static memory 1206 or within the hardware processor 1202 are located. In one example, one or any combination of hardware processor can be used 1202 , Main memory 1204 , static storage 1206 or storage device 1216 represent machine-readable media.

The improved retransmission device 1219 can use any of the operations and processes described and shown above (for example process 1000 from 10A , Process 1030 from 10B , Process 1050 from 10C and process 1070 from 10D ) perform or execute.

In one or more embodiments, the improved retransmission device 1119 determine a first Wi-Fi PPDU that contains a HARQ retransmission request and one or more segments.

In one or more embodiments, the improved retransmission device 1119 cause one or more segments to be stored in one or more buffers.

In one or more embodiments, the improved retransmission device 1119 cause the first Wi-Fi PPDU to be sent to an STA during a TXOP.

In one or more embodiments, the improved retransmission device 1119 identify an acknowledgment frame received from the STA and indicate a reception status of the first Wi-Fi PPDU.

In one or more embodiments, the improved retransmission device 1119 cause a second Wi-Fi PPDU to be sent during TXOP, the second Wi-Fi PPDU containing at least one segment.

In one or more embodiments, the improved retransmission device 1119 identify a first Wi-Fi PPDU sent by a first device during a TXOP and containing a first HARQ retransmission request and one or more segments.

In one or more embodiments, the improved retransmission device 1119 determine one or more segments (for example with a CRC).

In one or more embodiments, the improved retransmission device 1119 cause an acknowledgment frame to be sent indicating the reception status of the first Wi-Fi PPDU.

In one or more embodiments, the improved retransmission device 1119 identify a second Wi-Fi PPDU from the first device that includes at least a segment of the first Wi-Fi PPDU during the TXOP.

In one or more embodiments, the improved retransmission device 1119 cause a trigger frame to be sent during a TXOP.

In one or more embodiments, the improved retransmission device 1119 identify a trigger frame during a TXOP.

It will be understood that what has been set forth above is only a subset of how the improved retransmission device operates 1119 and that other functions included in this disclosure can also be configured by the improved retransmission device 1119 can be executed.

Although the machine-readable medium 1122 As illustrated as a single medium, the term “machine readable medium” may include a single medium or multiple media (e.g., a centralized or decentralized database, and / or linked caches and servers) configured to use the one or more media several instructions 1124 save.

Various embodiments can be implemented in whole or in part in software and / or firmware. Such software and / or firmware may take the form of instructions contained in or on a non-transitory computer readable storage medium. These instructions can then be followed by one or more Processors are read and executed to enable the operations described herein to be performed. The instructions can be in any suitable form, including, for example, source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. Such computer readable medium may include any tangible, non-transitory medium for storing information in a form readable by one or more computers, such as read-only memory (ROM); a random access memory (RAM); Magnetic disk storage media; optical storage media; a flash memory, etc.

The term "machine-readable medium" can include any medium that is capable of carrying instructions for execution by the machine 1100 to save, encode or execute, and that the machine 1100 causes any one or more of the techniques of the present disclosure to be performed, or capable of storing, encoding, or executing data structures used by or associated with such instructions. Non-limiting examples of machine-readable media can include solid-state storage and optical and magnetic media. In one example, a massed machine-readable medium includes a machine-readable medium with multiple particles that have rest mass. Specific examples of mass machine readable media may include: non-volatile memory such as semiconductor memory devices (e.g., Electrically Programmable Read Only Memory (EPROM) or Electrically Erasable Programmable Read Only Memory (EEPROM)) and flash memory devices; magnetic disks such as internal hard drives and removable disks; magneto-optical disks; and CD-ROM and DVD-ROM discs.

The instructions 1124 can also use a communication network 1126 using a transmission medium via the network interface device or the transceiver 1120 sent or received using one of a number of transmission protocols (e.g., Frame Relay, Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Hypertext Transfer Protocol (HTTP), etc.). Exemplary communications networks may include: a local area network (LAN), a wide area network (WAN), a packet data network (e.g., the Internet), cellular phone networks (e.g., cellular networks), plain old telephone (POTS) networks, wireless data networks (e.g., the Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards known as Wi-Fi ^® , the IEEE 802.16 family of standards known as WiMax ^® , the IEEE 802.15.4 family of standards, and peer-to-peer Peer (P2P) networks). In one example, the network interface device or the transceiver 1120 one or more physical jacks (for example, ethernet, coaxial, or telephone jacks) or one or more antennas to connect to the communications network 1126 contain. In one example, the network interface device or the transceiver 1120 contain a plurality of antennas to communicate wirelessly using at least one of single-input multiple-output (SIMO) techniques, multiple-input multiple-output (MIMO) techniques, or multiple-input single-output (MISO) techniques. The term “transmission medium” is to be understood to include any intangible medium that is capable of carrying instructions for execution by the machine 1100 to store, encode or execute, and contains digital or analog communication signals or other intangible media for enabling such software to communicate. The operations and processes described and shown above can be performed or performed in any suitable order as desired in various implementations. Additionally, in certain implementations, at least a portion of the operations can be performed in parallel. Additionally, in certain implementations, fewer or more than the operations described may be performed.

The word “exemplary” in the sense of the present text means “serving as an example, an exemplary case or as an illustration”. Each embodiment described in the present text as “exemplary” is not necessarily to be interpreted as preferred or advantageous over other embodiments. The terms “computing device”, “user device”, “communication station”, “station”, “handheld device”, “mobile device”, “wireless device” and “user equipment” (UE) refer to a wireless communication device as used herein such as a mobile phone, a smartphone, a tablet, a netbook, a wireless terminal, a laptop computer, a femtocell, a high data rate subscriber station (HDR), an access point, a printer, a point of sale device, an access terminal or other Personal Communication System (PCS) device. The device can be either mobile or stationary.

For the purposes of this document, the term “communicate” is intended to include sending or receiving, or both sending and receiving. This can be particularly useful in claims when organizing Describes data that is sent by one device and received by another device, but only the functionality of one of those devices is required to infringe the claim. Similarly, bidirectional data exchange between two devices (both devices sending and receiving during the exchange) can be described as “communicating” when only one of those devices is required to function. The term “communicate” in the context of the present text with reference to a wireless communication signal includes the transmission of the wireless communication signal and / or the reception of the wireless communication signal. For example, a wireless communication unit capable of transmitting a wireless communication signal may include a wireless transmitter for transmitting the wireless communication signal to at least one other wireless communication unit and / or a wireless communication receiver for receiving the wireless communication signal from at least one other wireless communication unit.

For the purposes of the present text, and unless otherwise stated, the use of the adjectives “first”, “second”, “third” etc. to describe a common object only means that different instances of the same objects are meant. It is not intended to imply that the objects described in this way must be present in any particular order, be it in terms of time, space, rank, or in any other way.

The term “access point” (AP) can be a stationary station in the sense of this text. An access point can also be referred to as an access node, a base station, an evolved Node B (eNodeB) or some other similar terminology known to a person skilled in the art. An access terminal may also be referred to as a mobile station, user equipment (UE), wireless communication device, or other similar terminology known to those skilled in the art. The embodiments disclosed herein relate generally to wireless networks. Some embodiments may relate to wireless networks that operate in accordance with any of the IEEE 802.11 standards.

Some embodiments can be used in conjunction with various devices and systems, such as a personal computer (PC), a desktop computer, a mobile computer, a laptop computer, a notebook computer, a tablet computer, a server computer, a handheld computer, a handheld device, a personal digital assistant (PDA) device, a handheld PDA device, an on-board device, an off-board device, a hybrid device, a vehicle device, a non-vehicle device, a mobile or portable device, consumer device, non-mobile or non-portable device, wireless communication station, wireless communication device, wireless access point (AP), wired or wireless router, wired or wireless modem, video device, an audio device, an audio-video (A / V) - Device, a wired or wireless network, a wireless area network, a wireless video area network (WVAN), a local area network (LAN), a wireless LAN (WLAN), a personal area network (PAN), a wireless PAN (WPAN ), and the same.

Some embodiments may be used in conjunction with one-way and / or two-way radio communication systems, cellular radiotelephone communication systems, a cellular phone, a cellular phone, a wireless phone, a personal communication system (PCS) device, a PDA device that includes a wireless communication device, a cellular phone, or a cellular phone Portable Global Positioning System (GPS) device, a device that contains a GPS receiver or transceiver or chip, a device that contains an RFID element or chip, a Multiple Input Multiple Output (MIMO) - Transceiver or device, a single input multiple output (SIMO) transceiver or device, a multiple input single output (MISO) transceiver or device, a single input single output (SISO) transceiver or device, a device, that has one or more internal antennas and / or external antennas, digital video broadcast (DVB) devices or systems, multi-standard Radio devices or systems, a wired or wireless hand-held device, for example a smartphone, a Wireless Application Protocol (WAP) device, or the like.

Some embodiments may be used in conjunction with one or more types of wireless communication signals and / or systems that follow one or more wireless communication protocols, for example radio frequency (RF), infrared (IR), frequency-division multiplexing (FDM), orthogonal FDM ( OFDM), Time-Division Multiplexing (TDM), Time-Division Multiple Access (TDMA), Extended TDMA (E-TDMA), General Packet Radio Service (GPRS), extended GPRS, Code-Division Multiple Access (CDMA), Wideband CDMA (WCDMA), CDMA 2000, single-carrier CDMA, multi-carrier CDMA, multi-carrier modulation (MDM), Discrete Multi-Tone (DMT), Bluetooth ^® , Global Positioning System (GPS), Wi-Fi, Wi-Max, ZigBee, Ultra-Wideband (UWB), Global System for Mobile communications (GSM), 2G, 2.5G, 3G , 3.5G, 4G, Fifth Generation (5G) cellular networks, 3GPP, Long Term Evolution (LTE), LTE advanced, Enhanced Data rates for GSM Evolution (EDGE) or the like can be used. Other embodiments may be used in various other devices, systems, and / or networks.

Example 1, the apparatus including storage and processing circuitry configured to: determine a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) that includes a first indication of a Hybrid Automatic Retransmission Request, and further a or comprises multiple segments; Causing the one or more segments to be stored in one or more buffers associated with memory; Causing the first Wi-Fi PPDU to be sent to a station device during a Transmission Opportunity (TXOP); Identifying an acknowledgment frame received from the station device indicating a reception status of the first Wi-Fi PPDU; and causing a second Wi-Fi PPDU to be sent during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 2 may contain the device of Example 1 and / or another example described herein, wherein the receiving status indicates a successful receipt of a first segment of the one or more segments, and wherein the storage and processing circuitry is further configured to do the remove the first segment from the one or more buffers.

Example 3 may contain the device of Example 1 and / or another example described herein, wherein the reception status indicates a reception error of a first segment of the one or more segments, and wherein the at least one segment comprises the first segment.

Example 4 may contain the device of Example 1 and / or another example described herein, wherein the receiving status comprises a first receiving status and a second receiving status, the first receiving status indicating a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 5 can contain the device of Example 1 and / or another example described in the present text, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 6 may include the apparatus of Example 1 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 7 may include the apparatus of Example 1 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 8 may include the apparatus of Example 1 and / or any other example described herein, further comprising a transceiver configured to transmit and receive wireless signals.

Example 9 may include the device of Example 8 and / or any other example described herein further comprising one or more antennas coupled to the transceiver.

Example 10 may include a non-transitory computer readable medium that stores computer executable instructions that, when executed by one or more processors, result in the execution of operations including: Identifying a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) sent by a first device during a broadcast opportunity, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further comprising one or more segments; Causing the one or more segments to be stored in one or more buffers; Determining the one or more segments; Causing an acknowledgment frame to be sent to the first device, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and identifying a second Wi-Fi PPDU received by the first device during the broadcast opportunity, the second Wi-Fi PPDU comprises at least one segment of the one or more segments.

Example 11 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments is a cyclic redundancy check consists.

Example 12 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments is a cyclic redundancy check does not exist.

Example 13 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein the receive status indicates a successful receipt of a first segment of the one or more segments, and the operations further include removing the first Contain segments from the one or more buffers.

Example 14 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein the receive status indicates a receive failure of a first segment of the one or more segments, and wherein the at least one segment includes the first segment .

Example 15 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status a success of a first segment of the one or more received Indicates segments, wherein the second reception status indicates a reception error of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 16 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein the one or more segments are indicated by a segment number field of the first Wi-Fi PPDU and where a length of a first segment of the one or more segments is indicated by a user-specific field of the first Wi-Fi PPDU.

Example 17 may include the non-transitory computer-readable medium of Example 10 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, wherein the second indication is provided in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU.

Example 18 may include the non-transitory computer readable medium of Example 10 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a second indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 19 may include a method including: causing a trigger frame to be sent by one or more processors of a device during a transmission opportunity (TXOP); Identifying, by the one or more processors, a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) received from a station device, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further comprises one or more segments; Causing the one or more processors to store the one or more segments in one or more buffers; Determining, by the one or more processors, the one or more segments; Causing the one or more processors to send an acknowledgment frame indicating a reception status of the first Wi-Fi PPDU to the station device; and identifying, by the one or more processors, a second Wi-Fi PPDU received from the station device during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 20 may include the method of Example 19 and / or any other example described herein, wherein the Determining the one or more segments comprises determining that a first segment of the one or more segments passes a cyclic redundancy check.

Example 21 may include the method of Example 19 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments fails a cyclic redundancy check.

Example 22 may include the method of Example 19 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments fails a cyclic redundancy check.

Example 23 may contain the method of Example 19 and / or another example described herein, wherein the reception status indicates a successful receipt of a first segment of the one or more segments, the method further comprising removing the first segment from the one or more segments includes the plurality of buffers.

Example 24 may include the method of Example 19 and / or another example described herein, wherein the receive status comprises a first receive status and a second receive status, the first receive status indicating a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 25 may include the method of Example 19 and / or any other example described herein, where the trigger frame is a first trigger frame and where the acknowledgment frame is a second trigger frame.

Example 26 may include the method of Example 19 and / or any other example described herein, wherein the trigger frame is a first trigger frame, the method further comprising causing a second trigger frame to be sent during TXOP wherein the second trigger frame comprises a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 27, the apparatus including storage and processing circuitry configured to: identify a trigger frame received by an access point during a transmission opportunity (TXOP); Causing a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) to be sent to the access point, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further comprising one or more segments; Identifying an acknowledgment frame received from the access point, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and causing a second Wi-Fi PPDU comprising at least one segment of the one or more segments to be sent to the access point during the TXOP.

Example 28 may include the method of Example 27 and / or any other example described herein, wherein the trigger frame is a first trigger frame, and wherein the acknowledgment frame is part of a second trigger frame.

Example 29 may include the method of Example 27 and / or any other example described herein, wherein the trigger frame is a first trigger frame, and wherein the storage and processing circuitry is further configured to generate a second trigger frame identify received by the access point during the TXOP, the second trigger frame including a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 30 may include the method of Example 27 and / or any other example described herein, wherein the storage and processing circuitry is further configured to cause the one or more segments to be stored in one or more buffers, wherein the reception status indicates a successful reception of a first segment of the one or more segments, and wherein the storage and processing circuitry is further configured to remove the first segment from the one or more buffers.

Example 31 may include the method of Example 27 and / or any other example described herein, wherein the storage and processing circuitry is further configured to cause the one or more segments to be stored in one or more buffers, wherein the reception status a reception error of a first Indicates segments of the one or more segments, and wherein the at least one segment comprises the first segment.

Example 32 may include the method of Example 27 and / or another example described herein, wherein the receive status comprises a first receive status and a second receive status, wherein the first receive status indicates a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 33 may include the method of Example 27 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 34 may include the method of Example 27 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 35 may include the method of Example 27 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 36 may include the method of Example 27 and / or any other example described herein, further comprising a transceiver configured to transmit and receive wireless signals.

Example 37 may include the method of Example 36 and / or any other example described herein, further comprising one or more antennas coupled to the transceiver.

Example 38 may include a non-transitory computer-readable medium that stores computer-executable instructions that, when executed by one or more processors, result in the execution of operations including: determining a first Wi-Fi Physical Layer Protocol Data Unit (PPDU), which comprises a first indication of a Hybrid Automatic Retransmission Request, and further comprises one or more segments; Causing the one or more segments to be stored in one or more buffers associated with memory; Causing the first Wi-Fi PPDU to be sent to a station device during a Transmission Opportunity (TXOP); Identifying an acknowledgment frame received from the station device indicating a reception status of the first Wi-Fi PPDU; and causing a second Wi-Fi PPDU to be sent during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 39 may include the method of example 38 and / or another example described herein, wherein the receive status indicates a successful receipt of a first segment of the one or more segments, and the operations further include removing the first segment from the one or the plurality of buffers.

Example 40 may include the method of Example 38 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 41 may include the method of example 38 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 42 may include the method of Example 38 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 43 may include the method of Example 38 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 44 may include the method of Example 38 and / or any other example described herein, with the second Wi-Fi PPDU having a fifth indication of a Includes Acknowledgment Receipt Status associated with the Acknowledgment Frame.

Example 45 may include a method including: determining, by one or more processors of a device, a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) that includes a first indication of a Hybrid Automatic Retransmission Request, and further a or comprises multiple segments; Causing the one or more processors to store the one or more segments in one or more buffers associated with memory; Causing the one or more processors to send the first Wi-Fi PPDU to a station device during a transmission opportunity (TXOP); Identifying, by the one or more processors, an acknowledgment frame received from the station device indicating a reception status of the first Wi-Fi PPDU; and causing the one or more processors to send a second Wi-Fi PPDU during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 46 may include the method of example 45 and / or another example described herein, wherein the reception status indicates a successful receipt of a first segment of the one or more segments, the method further comprising removing the first segment from the one or more segments includes the plurality of buffers.

Example 47 may include the method of Example 45 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 48 may include the method of Example 45 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 49 may include the method of example 45 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 50 may include the method of Example 45 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 51 may include the method of Example 45 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 52, wherein the apparatus includes storage and processing circuitry configured to: identify a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) sent by a first apparatus during a broadcast opportunity, the first Wi-Fi Fi-PPDU comprises a first indication of a Hybrid Automatic Retransmission Request, and further comprises one or more segments; Causing the one or more segments to be stored in one or more buffers; Determining the one or more segments; Causing an acknowledgment frame to be sent to the first device, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and identifying a second Wi-Fi PPDU received by the first device during the broadcast opportunity, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 53 may include the method of Example 52 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments passes a cyclic redundancy check.

Example 54 may include the method of Example 52 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments fails a cyclic redundancy check.

Example 55 may include the method of Example 52 and / or any other example described herein, wherein the receive status indicates a successful receipt of a first segment of the one or more segments, and wherein the storage and processing circuitry is further configured to do the remove the first segment from the one or more buffers

Example 56 may include the method of Example 52 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 57 may include the method of example 52 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 58 may include the method of Example 52 and / or any other example described herein, wherein the one or more segments are indicated by a segment number field of the first Wi-Fi PPDU, and where a length of a first segment of the one or more segments is indicated by a user-specific field of the first Wi-Fi PPDU.

Example 59 may include the method of Example 52 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 60 may include the method of Example 52 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a second indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 61 may include a method that includes: identifying, by one or more processors of a device, a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) sent by a first device during a broadcast opportunity, the first Wi-Fi Fi-PPDU comprises a first indication of a Hybrid Automatic Retransmission Request, and further comprises one or more segments; Causing the one or more processors to store the one or more segments in one or more buffers; Determining, by the one or more processors, the one or more segments; Causing the one or more processors to send an acknowledgment frame to the first device, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and identifying, by the one or more processors, a second Wi-Fi PPDU received by the first device during the broadcast opportunity, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 62 may include the method of Example 61 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments passes a cyclic redundancy check.

Example 63 may include the method of Example 61 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments fails a cyclic redundancy check.

Example 64 may include the method of example 61 and / or another example described herein, wherein the reception status indicates a successful receipt of a first segment of the one or more segments, the method further comprising removing the first segment from the one or more segments includes the plurality of buffers.

Example 65 may include the method of Example 61 and / or any other example described herein, wherein the receive status is a receive error of a first Indicates segments of the one or more segments, and wherein the at least one segment comprises the first segment.

Example 66 may include the method of example 61 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 67 may include the method of Example 61 and / or any other example described herein, wherein the one or more segments are indicated by a segment number field of the first Wi-Fi PPDU, and where a length of a first segment of the one or more segments is indicated by a user-specific field of the first Wi-Fi PPDU.

Example 68 may include the method of Example 61 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 69 may include the method of Example 61 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a second indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 70, wherein the apparatus includes storage and processing circuitry configured to: cause a trigger frame to be sent during a transmission opportunity (TXOP); Identifying a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) received from a station device, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request and further comprising one or more segments; Causing the one or more segments to be stored in one or more buffers; Determining the one or more segments; Causing the station device to send an acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and identifying a second Wi-Fi PPDU received by the station device during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 71 may include the method of Example 70 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments passes a cyclic redundancy check.

Example 72 may include the method of Example 70 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments fails a cyclic redundancy check.

Example 73 may include the method of example 70 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 74 may include the method of example 70 and / or another example described herein, wherein the receive status indicates a successful receipt of a first segment of the one or more segments, the method further including removing the first segment from the one or more segments includes the plurality of buffers.

Example 75 may include the method of example 70 and / or another example described herein, wherein the receive status comprises a first receive status and a second receive status, the first receive status indicating a success of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 76 may include the method of Example 70 and / or any other example described herein, where the trigger frame is a first trigger frame and where the acknowledgment frame is a second trigger frame.

Example 77 may include the method of Example 70 and / or any other example described herein, where the trigger frame is a first trigger frame, and the storage and processing circuitry is further configured to send a second trigger frame. Frame during TXOP, the second trigger frame comprising a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 78 may include a non-transitory computer readable medium that stores computer-executable instructions that, when executed by one or more processors, result in the execution of operations including: causing a trigger frame to be sent during a transmission opportunity (TXOP); Identifying a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) received from a station device, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request and further comprising one or more segments; Causing the one or more segments to be stored in one or more buffers; Determining the one or more segments; Causing the station device to send an acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and identifying a second Wi-Fi PPDU received from the station device during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 79 may include the method of Example 78 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments passes a cyclic redundancy check.

Example 80 may include the method of Example 78 and / or any other example described herein, wherein determining the one or more segments includes determining that a first segment of the one or more segments fails a cyclic redundancy check.

Example 81 may include the method of Example 78 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 82 may include the method of example 78 and / or another example described herein, wherein the receive status indicates a successful receipt of a first segment of the one or more segments, the method further including removing the first segment from the one or more segments includes the plurality of buffers.

Example 83 may include the method of example 78 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 84 may include the method of Example 78 and / or any other example described herein, where the trigger frame is a first trigger frame and where the acknowledgment frame is a second trigger frame.

Example 85 may include the method of Example 78 and / or any other example described herein, wherein the trigger frame is a first trigger frame, the operations further comprising sending a second trigger frame during TXOP the second trigger frame including a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 86 may include a non-transitory computer readable medium that stores computer executable instructions that, when executed by one or more processors, result in the execution of operations including: identifying a transmission opportunity (TXOP) trigger frames received from an access point; Causing a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) to be sent to the access point, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further comprising one or more segments; Identifying an acknowledgment frame received from the access point, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and causing a second Wi-Fi PPDU comprising at least one segment of the one or more segments to be sent to the access point during the TXOP.

Example 87 may include the method of Example 86 and / or any other example described herein, where the trigger frame is a first trigger frame, and where the acknowledgment frame is part of a second trigger frame.

Example 88 may include the method of Example 86 and / or any other example described herein, wherein the trigger frame is a first trigger frame, and wherein the operations further include identifying a second trigger frame that while receiving the TXOP from the access point, the second trigger frame including a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 89 may include the method of Example 86 and / or any other example described herein, wherein the operations further include causing the one or more segments to be stored in one or more buffers, with the receive status indicating a successful first segment reception indicates the one or more segments, and wherein the operations further include removing the first segment from the one or more buffers.

Example 90 may include the method of Example 86 and / or any other example described herein, the operations further including causing the one or more segments to be stored in one or more buffers, the receive status being a receive error of a first segment the one or more segments, and wherein the at least one segment comprises the first segment.

Example 91 may include the method of example 86 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 92 may include the method of example 86 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 93 may include the method of Example 86 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 94 may include the method of Example 86 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 95 may include a method comprising: identifying, by one or more processors of a device, a trigger frame received from an access point during a transmission opportunity (TXOP); Causing the one or more processors to send a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) to the access point, the first Wi-Fi PPDU including a first indication of a Hybrid Automatic Retransmission Request, and des Further comprises one or more segments; Identifying, by the one or more processors, an acknowledgment frame received from the access point, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and causing, by the one or more processors, a second Wi-Fi PPDU comprising at least one segment of the one or more segments to be sent to the access point during the TXOP.

Example 96 may include the method of Example 95 and / or any other example described herein, where the trigger frame is a first trigger frame, and where the acknowledgment frame is part of a second trigger frame.

Example 97 may include the method of Example 95 and / or any other example described herein, wherein the trigger frame is a first trigger frame, and wherein the operations further include identifying a second trigger frame that occurs during the TXOP is received from the access point, the second trigger frame including a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 98 may include the method of Example 95 and / or any other example described herein, the method further comprising causing the one or more segments to be stored in one or more buffers, the reception status being a reception success of a first Indicates segments of the one or more segments, and wherein the operations further include removing the first segment from the one or more buffers.

Example 99 may include the method of Example 95 and / or any other example described herein, the method further comprising causing the one or more segments to be stored in one or more buffers, the receiving status being a receiving error of a first Indicates segments of the one or more segments, and wherein the at least one segment comprises the first segment.

Example 100 may include the method of Example 95 and / or another example described herein, wherein the receive status comprises a first receive status and a second receive status, the first receive status indicating a success of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 101 may include the method of Example 95 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 102 may include the method of Example 95 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 103 may include the method of Example 95 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 104 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 1-9.

Example 105 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 10-18.

Example 106 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 19-26.

Example 107 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 27-37.

Example 108 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 38-44.

Example 109 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 45-51.

Example 110 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 52-60.

Example 111 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 61-69.

Example 112 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 70-77.

Example 113 may include an apparatus comprising means for performing a method claimed in accordance with any of Examples 78-85.

Example 114 may include an apparatus including means for performing a method claimed in accordance with any of Examples 86-95.

Example 115 may include apparatus comprising means for performing a method claimed in accordance with any of Examples 95-103.

Example 116 may include a system that includes at least one storage device having programmed instructions shown in In response to its execution, cause at least one processor to execute the method of any of Examples 1-9.

Example 117 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 10-18.

Example 118 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 19-26.

Example 119 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 27-37.

Example 120 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 38-44.

Example 121 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 45-51.

Example 122 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 52-60.

Example 123 may include a system that includes at least one storage device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 61-69.

Example 124 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 70-77.

Example 125 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 78-85.

Example 126 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 86-94.

Example 127 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 95-103.

Example 128 may include machine-readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 1-9.

Example 129 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 10-18.

Example 130 may include a system that includes at least one memory device having programmed instructions that, in response to their execution, cause at least one processor to perform the method of any of Examples 19-26.

Example 131 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 27-37.

Example 132 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 38-44.

Example 133 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 45-51.

Example 134 may include machine readable medium containing code that, when executed, causes a machine to perform the method of any of Examples 52-60.

Example 135 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 61-69.

Example 136 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 70-77.

Example 137 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 78-85.

Example 138 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 86-94.

Example 139 may include machine readable medium that contains code that, when executed, causes a machine to perform the method of any of Examples 95-103.

Example 140 may include an apparatus comprising: means for determining a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) that includes a first indication of a Hybrid Automatic Retransmission Request and further includes one or more segments; means for causing the one or more segments to be stored in one or more buffers associated with the memory; means for causing the first Wi-Fi PPDU to be sent to a station device during a Transmission Opportunity (TXOP); means for identifying an acknowledgment frame received from the station device and indicating a reception status of the first Wi-Fi PPDU; and means for causing a second Wi-Fi PPDU to be sent during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 141 may include the device of example 140 and / or another example described herein, wherein the receiving status indicates a successful receipt of a first segment of the one or more segments, and wherein the device further comprises a means for removing the first segment comprises the one or more buffers.

Example 142 may include the apparatus of example 140 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 143 may include the device of example 140 and / or another example described herein, wherein the receive status comprises a first receive status and a second receive status, the first receive status indicating a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 144 may include the method of example 140 and / or another example described herein, wherein the first reference to the Hybrid Automatic Retransmission Request includes a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 145 may include the method of Example 140 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 146 may include the method of Example 140 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 147 may include a device comprising: means for identifying a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) sent by a first device during a broadcast opportunity, the first Wi-Fi PPDU providing a first indication on a Hybrid Automatic Retransmission Request, and further comprises one or more segments; means for causing the one or more segments to be stored in one or more buffers; means for determining the one or more segments; means for causing an acknowledgment frame to be sent to the first device, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and means for identifying a second Wi-Fi PPDU received by the first device during the broadcast opportunity, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 148 may include the apparatus of Example 147 and / or any other example described herein, wherein the means for determining the one or more segments includes means for determining that a first segment of the one or more segments a cyclic redundancy check passes in several segments.

Example 149 may include the apparatus of Example 147 and / or any other example described herein, wherein the means for determining the one or more segments comprises means for determining that a first segment of the one or more segments is a cyclic redundancy check does not exist.

Example 150 may include the device of example 147 and / or another example described herein, wherein the receiving status indicates a successful receipt of a first segment of the one or more segments, and wherein the device further comprises means for removing the first segment comprises the one or more buffers.

Example 151 may include the apparatus of example 147 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 152 may include the device of example 147 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a success of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 153 may include the apparatus of Example 147 and / or any other example described herein, wherein the one or more segments are indicated by a segment number field of the first Wi-Fi PPDU, and where a length of a first segment of the one or more segments is indicated by a user-specific field of the first Wi-Fi PPDU.

Example 154 may include the apparatus of Example 147 and / or another example described herein, wherein the first indication of the Hybrid Automatic Retransmission Request includes a second indication of a chase combining mode or an incremental redundancy mode, the second indication in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU is provided.

Example 155 may include the apparatus of Example 147 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a second indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 156 may include apparatus comprising: means for causing a trigger frame to be sent during a Transmission Opportunity (TXOP); means for identifying a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) received from a station device, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request and further one or more Segments includes; means for causing the one or more segments to be stored in one or more buffers; means for determining the one or more segments; means for causing the station device to send an acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and means for identifying a second Wi-Fi PPDU received from the station device during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments.

Example 157 may include the apparatus of Example 156 and / or any other example described herein, wherein the means for determining the one or more segments comprises means for determining that a first segment of the one or more segments requires a cyclic redundancy check consists.

Example 158 may include the apparatus of Example 156 and / or any other example described herein, wherein the means for determining the one or more segments includes means for determining that a first segment of the one or more segments requires a cyclic redundancy check does not exist.

Example 159 may include the apparatus of example 156 and / or another example described herein, wherein the receive status indicates a receive error of a first segment of the one or more segments, and wherein the at least one segment includes the first segment.

Example 160 may include the device of example 156 and / or any other example described herein, the receiving status indicating a successful receipt of a first segment of the one or more segments, the device further comprising means for removing the first segment from the comprises one or more buffers.

Example 161 may include the device of example 156 and / or another example described herein, wherein the receive status comprises a first receive status and a second receive status, the first receive status indicating a success of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 162 may include the apparatus of Example 156 and / or any other example described herein, where the trigger frame is a first trigger frame, and the acknowledgment frame is a second trigger frame.

Example 163 may include the apparatus of Example 156 and / or any other example described herein, wherein the trigger frame is a first trigger frame, the method further comprising causing a second trigger frame to be sent during TXOP wherein the second trigger frame comprises a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 164 may include apparatus comprising: means for identifying a trigger frame received from an access point during a transmission opportunity (TXOP); means for causing a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) to be sent to the access point, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and one or more Segments includes; means for identifying an acknowledgment frame received from the access point, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and means for causing a second Wi-Fi PPDU comprising at least one segment of the one or more segments to be sent to the access point during the TXOP.

Example 165 may include the apparatus of Example 164 and / or any other example described herein, where the trigger frame is a first trigger frame, and where the confirmation frame is part of a second trigger frame.

Example 166 may include the apparatus of Example 164 and / or any other example described herein, wherein the trigger frame is a first trigger frame, and wherein the apparatus further comprises means for identifying a second trigger frame that is while receiving the TXOP from the access point, the second trigger frame including a custom field indicating a number of segments and a length of a first segment of the number of segments.

Example 167 may include the apparatus of example 164 and / or any other example described herein, the apparatus further comprising means for causing the one or more segments to be stored in one or more buffers, the Receive status indicates a successful receipt of a first segment of the one or more segments, and wherein the storage and processing circuitry is further configured to remove the first segment from the one or more buffers.

Example 168 may include the apparatus of Example 164 and / or any other example described herein, the apparatus further comprising means for causing the one or more segments to be stored in one or more buffers, the Receive status indicates a receive failure of a first segment of the one or more segments, and wherein the at least one segment comprises the first segment.

Example 169 may include the apparatus of example 164 and / or another example described herein, wherein the receive status includes a first receive status and a second receive status, the first receive status indicating a successful receipt of a first segment of the one or more segments, wherein the second reception status indicates a reception failure of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment.

Example 170 may include the device of Example 164 and / or any other example described herein, the first reference to the Hybrid Automatic Retransmission Request includes a second indication of a chase combining mode or an incremental redundancy mode, the second indication being provided in a High-Efficiency Signal A (HE-SIG-A) field of the first Wi-Fi PPDU.

Example 171 may include the apparatus of Example 164 and / or any other example described herein, wherein the first Wi-Fi PPDU further includes a third indication of a number of segments that the first Wi-Fi PPDU includes, and further comprises a fourth indication of a length of a first segment of the number of segments.

Example 172 may include the apparatus of Example 164 and / or any other example described herein, wherein the second Wi-Fi PPDU includes a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame.

Example 173 may include a method of communicating on a wireless network as shown and described herein.

Example 174 may include a system for providing wireless communication as shown and described herein.

Example 175 may include an apparatus for providing wireless communication as shown and described herein.

Embodiments according to the disclosure are disclosed in particular in the appended claims, which relate to a method, a storage medium, an apparatus and a computer program product, each feature mentioned in a single claim category, for example method, also being claimed in another claim category, for example system can be. The dependencies or back references in the appended claims were chosen for reasons of form only. However, any subject matter resulting from a deliberate reference back to earlier claims (in particular multiple dependencies) can also be claimed, so that any combination of claims and their features is disclosed and can be claimed independently of the dependencies selected in the appended claims. The subject matter that can be claimed includes not only the combinations of features as set out in the appended claims, but also any other combination of features in the claims, each feature mentioned in the claims being combined with any other feature or combination other features in the claims can be combined. In addition, any of the embodiments and features described or shown herein may be claimed in a separate claim and / or in any combination with any embodiment or features described or shown herein or with any of the features of the appended claims.

The above description of one or more implementations is presented for the purposes of illustration and description, but is not intended to be exhaustive or to limit the scope of the embodiments to the precise form disclosed. Modifications and variations are possible in light of the above teachings or can be learned from practice of various embodiments.

Above, certain aspects of the disclosure have been described with reference to block and flow diagrams of systems, methods, devices, and / or computer program products according to various implementations. It should be understood that one or more blocks of the block and flow diagrams and combinations of blocks in the block and flow diagrams, respectively, can be implemented by computer-executable program instructions. Likewise, some blocks of the block and flow diagrams do not necessarily need to be executed in the order shown, or, according to some implementations, may not need to be executed at all.

These computer-executable program instructions can be loaded onto a special purpose computer or other special machine, processor or other programmable data processing device to form a special machine such that the instructions that are executed in the computer, the processor or the other programmable data processing device , provide a means for implementing one or more functions specified in the one or more blocks of the flowcharts. These computer program instructions can also be stored in a computer-readable storage medium or memory and can instruct a computer or other programmable data processing device to function in a specific manner, such that the instructions stored in the computer-readable storage medium form a product that contains instructional means that include a or implement the multiple functions specified in the one or more blocks of the flowcharts. As an example, certain implementations may provide a computer program product that includes a computer readable storage medium having implemented thereon computer readable program code or program instructions, the computer readable program code being configured to be executed to implement one or more functions that are included in the one or the multiple blocks of the flowcharts are specified. The computer program instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational elements or steps to be performed on the computer or other programmable device in order to generate a computer-implemented process in which the instructions referring to being performed on the computer or other programmable data processing device, provide elements or steps for implementing the functions specified in the one or more blocks of the flowcharts.

Accordingly, blocks of the block and flow diagrams support combinations of means for performing the specified functions, combinations of elements or steps for performing the specified functions, and program instruction means for performing the specified functions. It is further understood that each block of the block diagrams and flow diagrams and combinations of blocks in the block diagrams and flow diagrams can be implemented by special purpose hardware-based computer systems that perform the specified functions, elements or steps, or combinations of special-purpose hardware and computer instructions.

Conditional expressions such as “may”, “could”, “possibly” or “possibly”, unless expressly stated otherwise or understood differently within the context used, are intended generally to convey that certain implementations have certain features, elements and / or operations might contain, while other implementations may not contain certain features, elements, and / or operations. That is, such conditional formulations are not generally intended to imply that features, elements and / or operations are required in any way for one or more implementations, or that one or more implementations necessarily contain logic to decide, with or without user input or prompting, whether those features, elements, and / or operations are included or intended to be performed in a particular implementation.

Many modifications and other implementations of the disclosure set forth herein will come to mind to one skilled in the art, given the teachings presented in the above descriptions and associated drawings. It is therefore to be understood that the disclosure is not to be limited to the specifically disclosed implementations, and that modifications and other implementations are intended to fall within the scope of the appended claims. Although specific terms are used throughout this text, they are used in a generic and descriptive sense only and not for the purpose of limitation.

Claims (30)

Apparatus, the apparatus comprising storage and processing circuitry configured to: Determining a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) that includes a first indication of a Hybrid Automatic Retransmission Request and further includes one or more segments; Causing the one or more segments to be stored in one or more buffers associated with memory; Causing the first Wi-Fi PPDU to be sent to a station device during a Transmission Opportunity (TXOP); Identifying an acknowledgment frame received from the station device indicating a reception status of the first Wi-Fi PPDU; and Causing a second Wi-Fi PPDU to be sent during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments. Device according to Claim 1 wherein the receive status indicates a successful receipt of a first segment of the one or more segments, and wherein the storage and processing circuitry is further configured to remove the first segment from the one or more buffers. Device according to Claim 1 wherein the receive status indicates a receive failure of a first segment of the one or more segments, and wherein the at least one segment comprises the first segment. Device according to Claim 1 , wherein the reception status comprises a first reception status and a second reception status, wherein the first reception status indicates a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception error of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment. Device according to Claim 1 , wherein the first reference to the Hybrid Automatic Retransmission Request comprises a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a high-efficiency signal A (HE-SIG-A) field of the first Wi -Fi-PPDU is provided. Device according to Claim 1 wherein the first Wi-Fi PPDU further comprises a third indication of a number of segments that the first Wi-Fi PPDU comprises, and further comprises a fourth indication of a length of a first segment of the number of segments. Device according to Claim 1 wherein the second Wi-Fi PPDU comprises a fifth indication of an acknowledgment receipt status associated with the acknowledgment frame. Device according to Claim 1 further comprising a transceiver configured to transmit and receive wireless signals. Device according to Claim 8 further comprising one or more antennas coupled to the transceiver. Non-transitory computer-readable medium that stores computer-executable instructions that, when executed by one or more processors, result in the execution of operations including: Identifying a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) sent by a first device during a broadcast opportunity, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further an or comprises multiple segments; Causing the one or more segments to be stored in one or more buffers; Determining the one or more segments; Causing an acknowledgment frame to be sent to the first device, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and Identifying a second Wi-Fi PPDU received by the first device during the broadcast opportunity, the second Wi-Fi PPDU comprising at least one segment of the one or more segments. Non-transitory computer readable medium according to Claim 10 wherein determining the one or more segments comprises determining that a first segment of the one or more segments passes a cyclic redundancy check. Non-transitory computer readable medium according to Claim 10 wherein determining the one or more segments comprises determining that a first segment of the one or more segments fails a cyclic redundancy check. Non-transitory computer readable medium according to Claim 10 wherein the receive status indicates a successful receipt of a first segment of the one or more segments, and wherein the operations further include removing the first segment from the one or more buffers. Non-transitory computer readable medium according to Claim 10 wherein the receive status indicates a receive failure of a first segment of the one or more segments, and wherein the at least one segment comprises the first segment. Non-transitory computer readable medium according to Claim 10 , wherein the reception status comprises a first reception status and a second reception status, wherein the first reception status indicates a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception error of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment. Non-transitory computer readable medium according to Claim 10 wherein the one or more segments are indicated by a segment number field of the first Wi-Fi PPDU, and wherein a length of a first segment of the one or more segments is indicated by a user-specific field of the first Wi-Fi PPDU. Non-transitory computer readable medium according to Claim 10 , wherein the first reference to the Hybrid Automatic Retransmission Request comprises a second reference to a chase combining mode or an incremental redundancy mode, the second reference in a high-efficiency signal A (HE-SIG-A) field of the first Wi -Fi-PPDU is provided. Non-transitory computer readable medium according to Claim 10 wherein the second Wi-Fi PPDU comprises a second indication of an acknowledgment receipt status associated with the acknowledgment frame. A method comprising: causing one or more processors of a device to issue a trigger frame during a Transmission Opportunity (TXOP) is sent; Identifying, by the one or more processors, a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) received from a station device, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further comprises one or more segments; Causing the one or more processors to store the one or more segments in one or more buffers; Determining, by the one or more processors, the one or more segments; Causing the one or more processors to send an acknowledgment frame indicating a reception status of the first Wi-Fi PPDU to the station device; and identifying, by the one or more processors, a second Wi-Fi PPDU received from the station device during the TXOP, the second Wi-Fi PPDU comprising at least one segment of the one or more segments. Procedure according to Claim 19 wherein determining the one or more segments comprises determining that a first segment of the one or more segments passes a cyclic redundancy check. Procedure according to Claim 19 wherein determining the one or more segments comprises determining that a first segment of the one or more segments fails a cyclic redundancy check. Procedure according to Claim 19 wherein the receive status indicates a receive failure of a first segment of the one or more segments, and wherein the at least one segment comprises the first segment. Procedure according to Claim 19 , wherein the reception status comprises a first reception status and a second reception status, wherein the first reception status indicates a successful reception of a first segment of the one or more segments, wherein the second reception status indicates a reception error of a second segment of the one or more segments, and wherein the at least one segment comprises the second segment. Procedure according to Claim 19 wherein the trigger frame is a first trigger frame, and wherein the acknowledgment frame is a second trigger frame. Procedure according to Claim 19 wherein the trigger frame is a first trigger frame, the method further comprising causing a second trigger frame to be sent during the TXOP, the second trigger frame comprising a custom field having a number of segments and a Length of a first segment indicating the number of segments. Apparatus, the apparatus comprising storage and processing circuitry configured to: Identifying a trigger frame received by an access point during a transmission opportunity (TXOP); Causing a first Wi-Fi Physical Layer Protocol Data Unit (PPDU) to be sent to the access point, the first Wi-Fi PPDU comprising a first indication of a Hybrid Automatic Retransmission Request, and further comprising one or more segments; Identifying an acknowledgment frame received from the access point, the acknowledgment frame indicating a reception status of the first Wi-Fi PPDU; and Causing a second Wi-Fi PPDU to be sent to the access point during TXOP that includes at least one segment of the one or more segments. Device according to Claim 26 wherein the trigger frame is a first trigger frame, and wherein the acknowledgment frame is part of a second trigger frame. Device according to Claim 26 wherein the trigger frame is a first trigger frame, and wherein the storage and processing circuitry is further configured to identify a second trigger frame received from the access point during TXOP, the second trigger frame comprises a custom field indicating a number of segments and a length of a first segment of the number of segments. Device according to Claim 26 , wherein the storage and processing circuitry is further configured to cause the one or the to store a plurality of segments in one or more buffers, wherein the reception status indicates a successful receipt of a first segment of the one or more segments, and wherein the storage and processing circuitry is further configured to deliver the first segment from the one or more buffers remove. Device according to Claim 26 wherein the storage and processing circuitry is further configured to cause the one or more segments to be stored in one or more buffers, the reception status indicating a reception failure of a first segment of the one or more segments, and the at least one Segment includes the first segment.

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