WO2021253300A1 - 通信方法及设备、电子设备以及计算机可读存储介质 - Google Patents

通信方法及设备、电子设备以及计算机可读存储介质 Download PDF

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Publication number
WO2021253300A1
WO2021253300A1 PCT/CN2020/096656 CN2020096656W WO2021253300A1 WO 2021253300 A1 WO2021253300 A1 WO 2021253300A1 CN 2020096656 W CN2020096656 W CN 2020096656W WO 2021253300 A1 WO2021253300 A1 WO 2021253300A1
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Prior art keywords
bandwidth
type
indicating
position identifier
subfield
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PCT/CN2020/096656
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English (en)
French (fr)
Inventor
董贤东
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北京小米移动软件有限公司
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Priority to CN202080001206.XA priority Critical patent/CN114158288A/zh
Priority to PCT/CN2020/096656 priority patent/WO2021253300A1/zh
Priority to US18/000,790 priority patent/US20230216631A1/en
Priority to EP20941027.3A priority patent/EP4170950A4/en
Publication of WO2021253300A1 publication Critical patent/WO2021253300A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457Variable allocation of band or rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present disclosure relates to the field of communication. Specifically, the present disclosure relates to a communication method and device, an electronic device, and a computer-readable storage medium.
  • the IEEE Institute of Electrical and Electronic Engineers
  • IEEE802.11be to study the next generation (IEEE802.11a/b/g/n/ac) Wi-Fi Fi technology
  • the research scope is: 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared with the existing IEEE802.11ax standard.
  • Its main application scenarios are Video transmission, AR (Augmented Reality), VR (Virtual Reality, virtual reality), etc.
  • the aggregation and coordination of multiple frequency bands means that devices communicate in the 2.4GHz, 5.8GHz and 6-7GHz frequency bands at the same time.
  • a new MAC Media Access Control
  • Control Control mechanism for management.
  • it is also expected to support low-latency transmission in IEEE802.11be.
  • the maximum bandwidth that will be supported is 320MHz (160MHz+160MHz), and it will also support 240MHz (160MHz+80MHz) and the bandwidth supported in the IEEE802.11ax standard. Since the IEEE802.11be standard will additionally support 320MHz (160+160MHz) and 240MHz (160+80MHz), the existing IEEE802.11ax standard can only support null data packets with a maximum bandwidth of 160MHz.
  • An aspect of the present disclosure provides a communication method, the communication method may include: determining a first message frame, wherein the first message frame includes at least a subfield for indicating bandwidth information, wherein the The bandwidth information subfield is used to identify the configuration information of the resource unit RU under the first channel bandwidth; the first message frame is sent.
  • the subfield for indicating bandwidth information at least includes: a start position identifier for indicating a start position of a bandwidth range of the first channel bandwidth and an end position identifier for an end position.
  • the first channel bandwidth corresponds to the first type of bandwidth
  • the subfield for indicating bandwidth information includes the start position of the resource unit RU for indicating the bandwidth range corresponding to the first type of bandwidth Identification and end position identification.
  • the first channel bandwidth corresponds to a first type of bandwidth
  • the subfield for indicating bandwidth information includes: a low frequency band resource unit RU for indicating a bandwidth range corresponding to the first type of bandwidth
  • the start position identifier and the end position identifier, or the start position identifier and the end position identifier of the high frequency band resource unit RU used to indicate the bandwidth range corresponding to the first type of bandwidth.
  • the first channel bandwidth corresponds to the second type of bandwidth
  • the subfield for indicating bandwidth information includes the start position of the resource unit RU for indicating the bandwidth range corresponding to the second type of bandwidth Identification and end position identification.
  • the first channel bandwidth corresponds to a second type of bandwidth
  • the sub-domain for indicating bandwidth information includes: a low frequency band resource unit RU for indicating a bandwidth range corresponding to the second type of bandwidth The start position identifier and the end position identifier, or the start position identifier and the end position identifier of the high frequency band resource unit RU of the bandwidth range corresponding to the second type of bandwidth.
  • the first channel bandwidth corresponds to a second type of bandwidth
  • the subfield for indicating bandwidth information includes: a first frequency band resource unit RU for indicating a bandwidth range corresponding to the second type of bandwidth
  • the start position identifier and the end position identifier of the second type bandwidth are used to indicate the start position identifier and the end position identifier of the second frequency band resource unit RU corresponding to the bandwidth range of the second type bandwidth, or are used to indicate the second type bandwidth
  • the first message frame at least further includes a type identifier for indicating the type of the first message frame.
  • the first channel bandwidth corresponds to the first type bandwidth or the second type bandwidth, wherein the first type bandwidth is 320MHz or 160MHz+160MHz, and the second type bandwidth is 240MHz or 160MHz+80MHz.
  • An aspect of the present disclosure provides a communication method, the communication method may include: receiving a first message frame, wherein the first message frame includes at least a subfield for indicating bandwidth information, wherein the The bandwidth information subfield is used to identify the configuration information of the resource unit RU under the first channel bandwidth; according to the configuration information of the resource unit RU identified by the subfield used to indicate the bandwidth information, it is determined to be used for sending the second message frame The resource unit RU.
  • An aspect of the present disclosure provides a communication device, the communication device may include: a processing module configured to: determine a first message frame, wherein the first message frame includes at least a subfield for indicating bandwidth information, Wherein, the subfield used to indicate bandwidth information is used to identify configuration information of the resource unit RU under the first channel bandwidth; the communication module is configured to send the first message frame.
  • a processing module configured to: determine a first message frame, wherein the first message frame includes at least a subfield for indicating bandwidth information, Wherein, the subfield used to indicate bandwidth information is used to identify configuration information of the resource unit RU under the first channel bandwidth; the communication module is configured to send the first message frame.
  • An aspect of the present disclosure provides a communication device, the communication device includes a receiving module configured to receive a first message frame, wherein the first message frame includes at least a subfield for indicating bandwidth information, wherein , The subfield used to indicate bandwidth information is used to identify the configuration information of the resource unit RU under the first channel bandwidth; the processing module is configured to: according to the resource unit identified by the subfield used to indicate bandwidth information The configuration information of the RU determines the resource unit RU used to send the second message frame.
  • An aspect of the present disclosure provides an electronic device including a memory and a processor; the memory stores a computer program; the processor is configured to execute the above method when the computer program is running.
  • An aspect of the present disclosure provides a computer-readable storage medium in which a computer program is stored, and the computer program is used to execute the foregoing method when run by a processor.
  • the above technical solutions provided by the embodiments of the present disclosure can enable the NDP announcement frame to be applied in a larger communication bandwidth and improve the throughput.
  • FIG. 1 is a diagram showing an example of wireless local area network (WLAN) deployment
  • Figure 2 shows the format of the HE NDP announcement frame
  • Fig. 3 is a flowchart showing a communication method according to an embodiment of the present disclosure
  • Fig. 4 is a flowchart showing a communication method according to an embodiment of the present disclosure
  • FIG. 5 is a diagram showing a communication device according to an embodiment of the present disclosure.
  • FIG. 6 is a diagram showing a communication device according to an embodiment of the present disclosure.
  • FIG. 1 is a diagram showing an example of wireless local area network (WLAN) deployment.
  • WLAN wireless local area network
  • a WLAN may include one or more access points (AP: Access Point) and one or more stations (STA: Station) that communicate with the corresponding AP, although only one AP is shown in FIG. There are three stations (STA1 to STA3). However, this is only exemplary, and the embodiment of the present disclosure is not limited thereto.
  • a communication system may include multiple APs and multiple stations associated with each AP.
  • the AP may include software applications and/or circuits, so that other types of nodes in the wireless network can communicate with the outside and inside of the wireless network through the AP.
  • the AP may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity, wireless fidelity) chip.
  • a site STA may include, but is not limited to: cellular phones, smart phones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIM), personal navigation devices ( PND), global positioning system, multimedia equipment, Internet of Things (IoT) equipment, etc.
  • the AP can perform uplink and downlink transmissions with stations on different time-frequency resources.
  • the AP can send frames or packets to the corresponding STA and receive frames or packets from the corresponding STA to transfer data and/or control information.
  • the AP can be the initiator of beamforming, and the STA can be the receiver of beamforming.
  • One or more APs can send NDP announcement frames to the associated STA, and can continue to send NDP frames, and then the STA determines the channel allocated to the resource unit RU (resource unit) based on receiving the NDP announcement frame and the NDP frame Information, and feedback the channel information to the corresponding AP.
  • the format of an exemplary HE (High Efficiency) NDP declaration frame is defined as shown in FIG. 2.
  • the format of the STA information subdomain (i.e., STA Info 11 subdomain) is illustrated by taking the 11th station from the site information 1 subdomain to the site information n subdomain as an example.
  • the Partial BW Info (partial bandwidth information) subfield defines the range of RUs that the initiator of beamforming requests feedback from the receiver of beamforming identified by AID (Association Identifier) 11.
  • the RU Start Index and RU End Index included in the Partial BW Info subfield respectively define the RU start index and RU end index of the range.
  • the RU Start Index and RU End Index are specified as follows:
  • the RU Start Index subfield in the Partial BW Info subfield can indicate the first 26-tone RU for which the initiator of HE beamforming is requesting feedback.
  • the RU End Index subfield in the Partial BW Info subfield can indicate the last 26-tone that is requesting feedback.
  • the value of the RU Start Index subfield is less than or equal to the value of the RU End Index subfield.
  • the RU Start Index subfield and the RU End Index subfield depend on the bandwidth of the HE NDP announcement frame.
  • the HE PPDU, VHT PPDU, or HT PPDU carries the NDP announcement frame, it is indicated by TXVECTOR parameter CH_BANDWIDTH; if it is in non-HT duplicate
  • the NDP announcement frame is carried in the PPDU, which is indicated by the TXVECTOR parameter CH_BANDWIDTH_IN_NON_HT; if the NDP announcement frame is carried in the non-HT PPDU, it is 20MHz.
  • Both the RU Start Index subfield and the RU End Index subfield can be selected through the following content:
  • RU Start Index and RU End Index both have values in the range of 0 to 8, where 0 means 26-tone RU 1, and 8 means 26-tone RU9. Values 9-127 are reserved.
  • RU Start Index and RU End Index both have values in the range of 0 to 17, where 0 means 26-tone RU 1, and 17 means 26-tone RU 18. Values 18-127 are reserved.
  • RU Start Index and RU End Index both have values in the range of 0 to 36, where 0 means 26-tone RU 1, 36 means 26-tone RU 37. Values 37-127 are reserved.
  • RU Start Index and RU End Index both have values in the range of 0 to 73, where 0 means 26-tone RU 1, 73 means 26-tone RU 74.
  • 36 means 26-tone RU 37
  • 37 means 26-tone RU 1
  • 73 means 26-tone RU 74.
  • Values 74-127 are reserved. For 80+80MHz, it is not required to feedback the gap between 80MHz segments.
  • the format and parameter configuration of the NDP declaration frame with a maximum bandwidth of 160MHz are supported, and the reserved bits under the bandwidth of 20MHz, 40MHz, 80MHz, 160/80+80MHz cannot be used to define 802.11
  • the bandwidths in the be standard are 240MHz, 160MHz+80MHz, 320MHz, and 160+160MHz. Therefore, it is necessary to redefine the format and parameters of the NDP declaration frame for 240MHz, 160MHz+80MHz, 320MHz and 160+160MHz in the 802.11be standard.
  • the embodiments of the present disclosure can be used in the following bandwidth ranges: 20MHz, 40MHz, 80MHz, 160/80+80MHz, 240/160+80MHz, 320/160+160MHz.
  • the above candidate bandwidth value is used as an example for description.
  • the specific values of these candidate bandwidth values are only examples, and are not intended to limit the scope of the embodiments of the present disclosure.
  • Fig. 3 shows a communication method according to an embodiment of the present disclosure.
  • the communication method of Fig. 3 may be executed by a control-end device; in an embodiment of the present disclosure, the control-end device includes, but is not limited to, the initiator of beamforming, Such as AP or any type of controller.
  • the initiator of beamforming Such as AP or any type of controller.
  • the AP is used as an example of the initiator of beamforming for description.
  • the first message frame is determined.
  • the first message frame includes at least a subfield for indicating bandwidth information, and the subfield for indicating bandwidth information is used to identify configuration information of a resource unit RU under the first channel bandwidth; in step 320 , Send the first message frame.
  • the AP may generate the first message frame according to at least one of the following conditions: network conditions, load conditions, hardware capabilities of the control terminal device, The hardware capabilities, service types, and relevant protocol provisions of the receiving end device; this embodiment of the present disclosure does not specifically limit this.
  • the AP may also obtain the first message frame from the external device, which is not specifically limited in the embodiment of the present disclosure.
  • the configuration information described in step 310 indicates that the initiator of beamforming (e.g., AP) requests the receiver of beamforming (e.g., the associated station STA) to feed back channel state information for each resource unit RU (CSI, channel state information).
  • the first channel bandwidth can correspond to any one or more of the following bandwidths, for example: 20MHz, 40MHz, 80MHz, 160MHz/80+80MHz, 240MHz/160+80MHz (hereinafter also referred to as the second type bandwidth), 320MHz/ 160+160MHz (hereinafter also referred to as the first type bandwidth).
  • the start position and the end position can be absolute values or relative values.
  • the absolute value means that the starting position is the index value of the RU
  • the relative value means that the starting position is the offset value of the RU relative to a reference point.
  • the bandwidth of the first type may be 320MHz, and the bandwidth of the first type may be divided into a high frequency band and a low frequency band in some examples.
  • the low frequency band corresponds to 0-73RU
  • the high frequency band corresponds to 74-147RU
  • the starting position can be an absolute value or a relative value
  • the ending position can also be an absolute value or a relative value, which will not be repeated hereafter.
  • this is only exemplary, and the embodiments of the present disclosure are not limited thereto.
  • the start position identifier may indicate the start position of the RU (absolute value or relative value), and the end position identifier may indicate the number of RUs.
  • this is only exemplary, and the embodiments of the present disclosure are not limited thereto.
  • the first message frame may include a single frame or multiple frames.
  • the first message frame may include an NDP announcement frame, and may also include an NDP frame that needs to be sent subsequently.
  • the NDP announcement frame is mainly described in this application, but it should be understood that the embodiments of the present disclosure are not limited thereto.
  • the format of the first message frame can be determined similarly to the NDP declaration frame format described in FIG. area.
  • the first message frame at least further includes a type identifier for indicating the type of the first message frame.
  • the type identifier included in the first message frame may identify the type of the first message frame as an IEEE802.11be standard frame.
  • the format of the HE NDP declaration frame shown in FIG. 2 can be redefined.
  • a type identifier for indicating the type of the first message frame can be defined in the subfield of the Sounding Dialog Token, as shown in Table 1 below:
  • the sounding dialog token Number subfield includes a value selected by the initiator of beamforming to identify the NDP announcement frame, which is similar to the IEEE802.11ax standard. For the sake of brevity, here No longer.
  • the Reserved subfield in the Sounding Dialog Token subfield includes 2 bits, and the existing HE NDP announcement frame does not exist indicating the first The type identifier of the message frame type.
  • 1 bit in the Reserved subfield may be used to define a type identifier indicating the type of the first message frame (for example, the HE subfield in Table 1). That is to say, set 1 bit in the Reserved subfield as the HE subfield, and define the type of the first message frame in the HE subfield.
  • the first message frame type may be an IEEE802.11be standard frame or other related standards. In the frame.
  • the type identifier included in the first message frame may be located in the frame control (Frame Control) subfield shown in FIG. 2 (for example, one or more reserved bits in the Frame Control subfield), for example, in the first
  • the type of the first message frame may be identified as the IEEE802.11be standard frame in the frame control (Frame Control) subfield.
  • the physical frame header part of the first message frame may also include a type identifier for indicating the type of the first message frame. At this time, the type identifier indicates bandwidth type information, for example, using bandwidth Bandwidth (BW ) Subfield to indicate bandwidth type information.
  • BW bandwidth Bandwidth
  • the subfield included in the first message frame for indicating bandwidth information may be the Partial BW Info subfield in FIG. 2.
  • the format of the subfield used to indicate bandwidth information may be based on the first message The format of the frame changes differently.
  • the subfield for indicating bandwidth information includes at least: a start position identifier for indicating the start position of the first channel bandwidth and an end position identifier for the end position of the first channel bandwidth. That is to say, in the subfield used to indicate bandwidth information, a start position identifier can be defined to indicate the RU start position of the bandwidth range of the first channel bandwidth, and an end position identifier can be defined to indicate the bandwidth of the first channel bandwidth. The RU end position of the range.
  • the example of the start position identifier may be the RU Start Index subfield shown in FIG. 2
  • the example of the end position identifier may be the RU End Index shown in FIG. 2.
  • the first channel bandwidth may correspond to the first type of bandwidth.
  • the subfield for indicating bandwidth information included in the first message frame may include The start position identifier and the end position identifier of the resource unit RU indicating the bandwidth range corresponding to the first type of bandwidth.
  • the bandwidth of the first type may be 320MHz
  • the index of the resource unit RU in the bandwidth range corresponding to the bandwidth of the first type may include 0-147, that is, in the case of the bandwidth of the first type (320MHz), it may represent a total of 148 26 -tone RU.
  • the start position identifier and the end position identifier can take values in the range of 0-147.
  • the start position identifier may be 125, and the end position identifier may be 130, which means that the initiator of beamforming requests the receiver of beamforming through the first message frame for each of 26-tone RU 125 to 26-tone RU 130.
  • the start position identifier may be an index value indicating the start position of the RU, and the end position identifier may indicate the number of RUs.
  • the first channel bandwidth corresponds to the first type of bandwidth (for example, 160+160MHz).
  • the subfield used to indicate bandwidth information includes: the bandwidth corresponding to the first type of bandwidth The start position identifier and the end position identifier of the low frequency band resource unit RU of the range, or the start position identifier and the end position identifier of the high frequency band resource unit RU used to indicate the bandwidth range corresponding to the first type of bandwidth.
  • the low frequency band may indicate the lower 160MHz frequency band in the first type of bandwidth (for example, 160+160MHz).
  • the index of the RU in the low frequency band of the bandwidth range corresponding to the first type of bandwidth may be Including 0-73, which means that the number of low-frequency band 160MHz bandwidth 26-tone RU is 74. That is to say, in the low frequency band 160MHz, the start position identifier and the end position identifier can take values in the range of 0-73.
  • the high frequency band may indicate the higher 160MHz frequency band in the first type of bandwidth (for example, 160+160MHz).
  • the index of the RU in the high frequency band of the bandwidth range corresponding to the first type of bandwidth may be Including 74-147, which means that the number of 26-tone RUs in the high frequency band 160MHz bandwidth is 74.
  • the start position identifier and the end position identifier can take values in the range of 74-147.
  • the above-mentioned example regarding "the starting position identifier may be an index value indicating the starting position of an RU, and the ending position identifier may indicate the number of RUs" is also It can be applied to the low frequency band 160 MHz and the high frequency band 160 MHz respectively. For brevity, repeated descriptions are omitted here.
  • the first channel bandwidth may correspond to the second type of bandwidth.
  • the subfield for indicating bandwidth information included in the first message frame may include The start position identifier and the end position identifier of the resource unit RU of the bandwidth range corresponding to the second type of bandwidth.
  • the second type of bandwidth may be 240MHz
  • the index of the resource unit RU in the bandwidth range corresponding to the first type of bandwidth may include 0 to 110, that is, in the case of the second type of bandwidth (240MHz), it may represent a total of 111 26 -tone RU.
  • the start position identifier and the end position identifier can take values in the range of 0-110.
  • the start location identifier can be 70, and the end location identifier can be 80.
  • the initiator of beamforming requests the receiver of beamforming through the first message frame for each of 26-tone RU 70 to 26-tone RU 80.
  • One RU feeds back channel state information.
  • the above-mentioned example regarding "the starting position identifier may be an index value indicating the starting position of an RU, and the ending position identifier may indicate the number of RUs" is also It can be applied to the second type bandwidth 240MHz respectively. For the sake of brevity, the repeated description is omitted here.
  • the first channel bandwidth corresponds to the second type of bandwidth (for example, 160+80MHz).
  • the subfield used to indicate bandwidth information includes: a bandwidth used to indicate the second type of bandwidth The start position identifier and the end position identifier of the low-band resource unit RU of the range, or the start position identifier and the end position identifier of the high-band resource unit RU in the bandwidth range corresponding to the second type of bandwidth.
  • the low frequency band may indicate the lower 160MHz frequency band of the second type bandwidth (160+80MHz).
  • the index of the RU in the low frequency band of the bandwidth range corresponding to the second type bandwidth may include 0- 73, which means that the number of 26-tone RUs in the low frequency band 160MHz bandwidth is 74. That is to say, in the low frequency band 160MHz, the start position identifier and the end position identifier can take values in the range of 0-73.
  • the high frequency band may indicate the higher 80 MHz frequency band in the second type of bandwidth (160+80 MHz).
  • the index of the RU in the high frequency band of the bandwidth range corresponding to the second type of bandwidth may include 74 -110, which means that the number of 26-tone RUs in the high frequency band with 80MHz bandwidth is 37.
  • the start position identifier and the end position identifier can take values in the range of 74-110.
  • the above-mentioned example regarding "the starting position identifier may be an index value indicating the starting position of an RU, and the ending position identifier may indicate the number of RUs" is also It can be applied to the low frequency band 160 MHz and the high frequency band 80 MHz respectively. For brevity, repeated descriptions are omitted here.
  • the first channel bandwidth corresponds to the second type of bandwidth (for example, 240MHz or 160+80MHz).
  • the subfield for indicating bandwidth information may include: for indicating the second type of bandwidth The start position identifier and the end position identifier of the first frequency band resource unit RU of the corresponding bandwidth range, or the start position identifier and the end position identifier of the second frequency band resource unit RU used to indicate the bandwidth range corresponding to the second type of bandwidth, Or the start position identifier and the end position identifier of the third frequency band resource unit RU used to indicate the bandwidth range corresponding to the second type of bandwidth.
  • the first frequency band may indicate the low frequency band 80MHz of the second type of bandwidth (for example, 240MHz or 160+80MHz).
  • the index of the RU in the first frequency band of the bandwidth range corresponding to the second type of bandwidth It can include 0-36, which means that the number of 26-tone RUs in the low frequency band 80MHz bandwidth is 37. That is to say, in the low frequency band of 80 MHz, the start position identifier and the end position identifier may be values selected from the first range of 0-36.
  • the second frequency band may indicate the middle frequency band 80MHz of the second type of bandwidth.
  • the index of the RU in the second frequency band of the bandwidth range corresponding to the second type of bandwidth may include 37-73, which means middle The number of RUs in the frequency band 80MHz bandwidth 26-tone is 37. That is to say, in the mid-band 80MHz, the start position identifier and the end position identifier may be values selected from the second range 37-73.
  • the third frequency band may indicate the high frequency band 80MHz in the second type bandwidth.
  • the index of the RU in the third frequency band of the bandwidth range corresponding to the second type bandwidth may include 74-110, which means The number of high frequency band 80MHz bandwidth 26-tone RU is 37.
  • the start position identifier and the end position identifier may be values selected from the third range 74-110.
  • the first frequency band, the second frequency band, and the second frequency band may be divided in other ways than "low frequency band 80MHz, mid frequency band 80MHz, and high frequency band 80MHz".
  • the above example of "the starting position identifier can be an index value indicating the starting position of the RU, and the ending position identifier can indicate the number of RUs” can also be applied to the first frequency band, the second frequency band, and the third frequency band, respectively. For conciseness, repeated descriptions are omitted here.
  • the embodiments of the present disclosure can be applied not only to the above-mentioned first type bandwidth and second type bandwidth, but also to bandwidths in existing standards (for example, 20MHz, 40MHz, 80MHz, 160MHz in the IEEE802.11ax standard) .
  • existing standards for example, 20MHz, 40MHz, 80MHz, 160MHz in the IEEE802.11ax standard
  • the setting of the start position identifier and the end position identifier is similar to the manner described with reference to FIG. 2. For brevity, repeated descriptions are omitted here.
  • the communication method defines a new NDP announcement frame format and its RU Start Index subfield and RU End Index subfield, so that the new NDP announcement frame can be applied in a larger communication bandwidth and improve throughput.
  • Fig. 4 is a flowchart showing a communication method according to an embodiment of the present disclosure.
  • the method in FIG. 4 may be a method performed on a receiving end device (ie, a receiver of beamforming).
  • the receiving end device may be a station.
  • a first message frame is received.
  • the first message frame includes at least a subfield for indicating bandwidth information, where the subfield for indicating bandwidth information is used to identify configuration information of a resource unit RU under the first channel bandwidth.
  • the first message frame and the subfield used to indicate bandwidth information are similar to those described above with reference to FIG. 3, and repeated descriptions are omitted here for brevity.
  • the resource unit RU used to send the second message frame is determined according to the configuration information of the resource unit RU used to indicate the subdomain identifier of the bandwidth information.
  • the second message frame may indicate the channel state information CSI allocated to each RU of the associated station by the first message frame.
  • the second message frame in step 420 may also be a feedback frame in other forms.
  • FIG. 5 is a diagram showing a communication device 500 according to an embodiment of the present disclosure.
  • the communication device 500 may include a processing module 510 and a communication module 530. It will be understood that the configuration of the communication device 500 shown in FIG. 5 is only exemplary, and the communication device according to an embodiment of the present disclosure may include more or fewer modules.
  • the processing module 510 may be configured to: determine a first message frame, where the first message frame includes at least a subfield for indicating bandwidth information, and the subfield for indicating bandwidth information is used to identify that it is under the first channel bandwidth.
  • the communication module 530 may be configured to send the first message frame.
  • the first message frame and the subfield used to indicate bandwidth information are similar to those described above with reference to FIG. 3, and repeated descriptions are omitted here for brevity.
  • the communication device 500 described with reference to FIG. 5 can perform operations corresponding to the communication method of FIG. 3. For brevity, repeated descriptions are omitted here.
  • FIG. 6 is a diagram showing a communication device 600 according to an embodiment of the present disclosure.
  • the communication device 600 may include a receiving module 610 and a processing module 630. It will be understood that the configuration of the communication device 600 shown in FIG. 6 is only exemplary, and the communication device according to an embodiment of the present disclosure may include more or fewer modules.
  • the receiving module 610 may be configured to: receive a first message frame, where the first message frame includes at least a subfield for indicating bandwidth information, and the subfield for indicating bandwidth information is used to identify that it is under the first channel bandwidth.
  • the first message frame and the subfield used to indicate bandwidth information are similar to those described above with reference to FIG. 3, and repeated descriptions are omitted here for brevity.
  • the processing module 630 may be configured to determine the resource unit RU used to send the second message frame according to the configuration information of the resource unit RU used to indicate the subdomain identifier of the bandwidth information.
  • the second message frame may represent the channel state information of each resource unit RU allocated to the communication device 600 by the first message frame.
  • the processing module 630 of the communication device 600 may also be used to process the first message frame received through the receiving module 610 to determine the corresponding feedback frame.
  • the communication device defines a new NDP announcement frame format and its RU Start Index subfield and RU End Index subfield, so that the new NDP announcement frame can be applied in a larger communication bandwidth and improve throughput
  • module in FIG. 5 and FIG. 6 may be implemented by a combination of software and/or hardware, which is not specifically limited in the embodiment of the present disclosure.
  • the embodiment of the present disclosure also provides an electronic device including a processor and a memory; wherein the memory stores machine-readable instructions (or (Referred to as "computer program”); a processor for executing machine-readable instructions to implement any of the methods shown in FIGS. 3 and 4.
  • the electronic device may be used as a part of the device for identifying bandwidth, but the embodiment of the present disclosure is not limited to this.
  • the electronic device may be used as another node separate from the device for identifying bandwidth.
  • the embodiment of the present disclosure also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, any one of the methods shown in FIGS. 3 and 4 is implemented.
  • the processor may be used to implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the present disclosure, for example, a CPU (Central Processing Unit, central processing unit), general processing DSP (Digital Signal Processor), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the memory may be, for example, ROM (Read Only Memory), RAM (Random Access Memory, random access memory), EEPROM (Electrically Erasable Programmable Read Only Memory, electrically erasable and programmable memory).
  • ROM Read Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • optical disc storage including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.
  • magnetic disk storage media or other magnetic discs A storage device, or any other medium that can be used to carry or store program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.

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Abstract

提供了通信方法及设备、电子设备以及计算机可读存储介质。所述通信方法包括:确定第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;发送所述第一消息帧。本公开实施例的技术方案能够在无线通信中应用更大的通信带宽,提高吞吐量。

Description

通信方法及设备、电子设备以及计算机可读存储介质 技术领域
本公开涉及通信领域,具体而言,本公开涉及一种通信方法及设备、电子设备以及计算机可读存储介质。
背景技术
在2018年5月份,IEEE(Institute of Electrical and Electronic Engineers,电气与电子工程师协会)成立了SG(study group)IEEE802.11be来研究下一代(IEEE802.11a/b/g/n/ac)Wi-Fi技术,所研究的范围为:320MHz的带宽传输、多个频段的聚合及协同等,期望能够相对于现有的IEEE802.11ax标准提高至少四倍的速率以及吞吐量,其主要的应用场景为视频传输、AR(Augmented Reality,增强现实)、VR(Virtual Reality,虚拟现实)等。
多个频段的聚合及协同是指设备间同时在2.4GHz、5.8GHz及6-7GHz的频段下进行通信,对于设备间同时在多个频段下通信需要定义新的MAC(Media Access Control,介质访问控制)机制来进行管理。此外,在IEEE802.11be中还期望能够支持低时延传输。
在IEEE802.11be标准中,将支持的最大带宽为320MHz(160MHz+160MHz),此外还将支持240MHz(160MHz+80MHz)及IEEE802.11ax标准中所支持的带宽。由于在IEEE802.11be标准中还将额外地支持320MHz(160+160MHz)及240MHz(160+80MHz),但现有的IEEE802.11ax标准中,只能够支持最大160MHz带宽的空数据包(null data packet announcement,NDP)声明(announcement)帧的格式及其参数的配置,因此现有的NDP声明帧不适用于IEEE802.11be标准,需进行增强。
发明内容
本公开的各方面将至少解决上述问题和/或缺点。本公开的各种实施例提供以下技术方案:
本公开的一方面提供一种通信方法,所述通信方法可以包括:确定第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;发送所述第一消息帧。
根据实施例,所述用于指示带宽信息的子域至少包括:用于指示第一信道带宽的带宽范围的起始位置的起始位置标识和结束位置的结束位置标识。
根据实施例,所述第一信道带宽对应于第一类型带宽,且所述用于指示带宽信息的子域包括用于指示所述第一类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。
根据实施例,所述第一信道带宽对应于第一类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第一类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者用于指示所述第一类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。
根据实施例,所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括用于指示所述第二类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。
根据实施例,所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第二类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者所述第二类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。
根据实施例,所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第二类型带宽对应的带宽范围的第一频段资源单元RU的起始位置标识和结束位置标识,用于指示所述第二类型带宽对应的带宽范围的第二频段资源单元RU的起始位置标识和结束位置标识,或者用于指示所述第二类型带宽对应的带宽范围的第三频段资 源单元RU的起始位置标识和结束位置标识。
根据实施例,所述第一消息帧至少还包括用于指示所述第一消息帧类型的类型标识。
根据实施例,所述第一信道带宽对应于所述第一类型带宽或者所述第二类型带宽,其中,所述第一类型带宽为320MHz或160MHz+160MHz,所述第二类型带宽为240MHz或160MHz+80MHz。
本公开的一方面提供一种通信方法,所述通信方法可以包括:接收第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;根据所述用于指示带宽信息的子域标识的资源单元RU的配置信息,确定用于发送第二消息帧的资源单元RU。
本公开的一方面提供一种通信设备,所述通信设备可以包括:处理模块,被配置为:确定第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;通信模块,被配置为:发送第一消息帧。
本公开的一方面提供一种通信设备,所述通信设备包括:接收模块,被配置为:接收第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;处理模块,被配置为:根据所述用于指示带宽信息的子域标识的资源单元RU的配置信息,确定用于发送第二消息帧的资源单元RU。
本公开的一方面提供一种电子设备,所述电子设备包括存储器和处理器;所述存储器中存储有计算机程序;所述处理器用于在运行所述计算机程序时执行上述方法。
本公开的一方面提供一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序在被处理器运行时用于执行上述方法。
根据本公开的实施例提供的以上技术方案能够使得NDP声明帧在更大的通信带宽中得到应用,提高吞吐量。
附图说明
通过参照附图详细描述本公开的示例性实施例,本公开实施例的上述以及其他特征将更加明显,其中:
图1是示出无线局域网(WLAN)部署的示例的示图;
图2是示出HE NDP声明帧的格式;
图3是示出根据本公开的实施例的一种通信方法的流程图;
图4是示出根据本公开的实施例的一种通信方法的流程图;
图5是示出根据本公开的实施例的通信设备的示图;
图6是示出根据本公开的实施例的通信设备的示图。
贯穿附图,相似的参考标记用于描绘相同或相似的元件、特征和结构
具体实施方式
提供以下参照附图的描述,以帮助全面理解由所附权利要求及其等同物限定的本公开的各种实施例。本公开的各种实施例包括各种具体细节,但是这些具体细节仅被认为是示例性的。此外,为了清楚和简洁,可以省略对公知功能和构造的描述。
在本公开中使用的术语和词语不限于书面含义,而是仅被发明人所使用,以能够清楚和一致的理解本公开。因此,对于本领域技术人员而言,提供本公开的各种实施例的描述仅是为了说明的目的,而不是为了限制的目的。
应当理解,除非上下文另外清楚地指出,否则这里使用的单数形式“一”、“一个”、“所述”和“该”也可以包括复数形式。应该进一步理解的是,本公开中使用的措辞“包括”是指存在所描述的特征、整数、步骤、操作、元件和/或组件,但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。
将理解的是,尽管术语“第一”、“第二”等在本文中可以用于描述各种元素,但是这些元素不应受这些术语的限制。这些术语仅用于将一个元素与另一个元素区分开。因此,在不脱离示例实施例的教导的情况下,下面讨论的第一元素可以被称为第二元素。
应该理解,当元件被称为“连接”或“耦接”到另一元件时,它可以直接连接或耦接到其他元件,或者也可以存在中间元件。此外,这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的术语“和/或”或者表述“……中的至少一个/至少一者”包括一个或多个相关列出的项目的任何和所有组合。
为使本公开的实施例的目的、特征和优点更加清楚,下面将结合附图详细描述本公开的实施方式。
图1是示出无线局域网(WLAN)部署的示例的示图。
WLAN可以包括一个或多个接入点(AP:Access Point)以及与相应AP通信的一个或多个站点(STA:Station),虽然在图1中仅示出了一个AP以及分别与AP通信的三个站点(STA1至STA3),然而这仅是示例性的,本公开实施例不限于此,例如,在通信系统中可以包括多个AP和与每个AP相关联的多个站点。
AP可以包括软件应用和/或电路,以使无线网络中的其他类型节点可以通过AP与无线网络外部及内部进行通信。在一些示例中,作为示例,AP可以是配备有Wi-Fi(Wireless Fidelity,无线保真)芯片的终端设备或网络设备。作为示例,站点STA可以包括但不限于:蜂窝电话、智能电话、可穿戴设备、计算机、个人数字助理(PDA)、个人通信系统(PCS)设备、个人信息管理器(PIM)、个人导航设备(PND)、全球定位系统、多媒体设备、物联网(IoT)设备等。
AP可以在不同的时频资源上与站点进行上下行传输,AP可以将帧或分组发送到相应STA并从相应STA接收帧或分组以传递数据和/或控制信息。例如,在信道探测过程中,AP可以作为波束成形的发起方,STA可以作为波束成形的接收方。一个或多个AP可以向相关联的STA发送NDP声明帧,并且可以继续发送NDP帧,然后STA基于接收到NDP声明帧和NDP帧后,确定分配给其的资源单元RU(resource unit)的信道信息,并且将信道信息反馈给相应的AP。在IEEE802.11ax标准中,作为示例性的HE(高效,High Efficiency)NDP声明帧的格式被定义为如图2所示。
在图2中,以站点信息1子域至站点信息n子域中的第11个站点为例示 出了STA信息子域(即,STA Info 11子域)的格式。在STA信息子域中,Partial BW Info(部分带宽信息)子域定义波束成形的发起方请求由AID(Association Identifier)11标识的波束成形的接收方反馈的RU的范围。在Partial BW Info子域中包括的RU Start Index和RU End Index分别定义了该范围的RU起始索引和RU结束索引。
在IEEE802.11ax标准中,对RU Start Index和RU End Index的规定如下:
Partial BW Info子域中的RU Start Index子域可以指示HE波束成形的发起方正在请求反馈的首个26-tone RU。Partial BW Info子域中的RU End Index子域可以指示正在请求反馈的最后一个26-tone。RU Start Index子域的值小于或等于RU End Index子域的值。RU Start Index子域和RU End Index子域依赖于HE NDP声明帧的带宽,如果在HE PPDU、VHT PPDU或者HT PPDU携带NDP声明帧,则其由TXVECTOR parameter CH_BANDWIDTH来指示;如果在non-HT duplicate PPDU中携带NDP声明帧,则其由TXVECTOR parameter CH_BANDWIDTH_IN_NON_HT来指示;如果在non-HT PPDU中携带NDP声明帧,则其是20MHz。RU Start Index子域和RU End Index子域均可以通过以下内容来选择:
-如果HE NDP声明帧的带宽为20MHz,则RU Start Index和RU End Index均在0到8的范围内取值,其中,0表示26-tone RU 1,8表示26-tone RU9。值9-127保留。
-如果HE NDP声明帧的带宽为40MHz,则RU Start Index和RU End Index均在0到17的范围内取值,其中,0表示26-tone RU 1,17表示26-tone RU 18。值18-127保留。
-如果HE NDP声明帧的带宽为80MHz,则RU Start Index和RU End Index均在0到36的范围内取值,其中,0表示26-tone RU 1,36表示26-tone RU 37。值37-127保留。
-如果HE NDP声明帧的带宽为160MHz,则RU Start Index和RU End Index均在0到73的范围内取值,其中,0表示26-tone RU 1,73表示26-tone RU 74。在80+80MHz的情况下,在较低的80MHz频率段中,0表示26-tone RU 1,36表示26-tone RU 37;在较高的80MHz频率段中,37表示26-tone  RU 1,73表示26-tone RU 74。值74-127保留。对于80+80MHz,不要求对80MHz段之间的间隙进行反馈。
根据上述的内容可知,在相关技术中支持最大160MHz带宽的NDP声明帧的格式及其参数的配置,并且20MHz、40MHz、80MHz、160/80+80MHz带宽下的保留位也不能够用于定义802.11be标准中的带宽240MHz、160MHz+80MHz、320MHz及160+160MHz,因此针对802.11be标准中的240MHz、160MHz+80MHz、320MHz及160+160MHz需要重新定义NDP声明帧的格式及参数。
需要指出的是:本公开的实施例能够用于以下带宽范围:20MHz、40MHz、80MHz、160/80+80MHz、240/160+80MHz、320/160+160MHz。在本公开的所有实施例中,都使用以上的候选带宽值为例进行说明。但是需要声明,这些候选带宽值的具体数值都只是举例说明,而并非对本公开实施例的范围的限定。本公开实施例中对于不同的标准所支持的候选带宽值,不做任何限定;任何数值的候选带宽值,都在本公开实施例的保护范围中。
图3是示出根据本公开的实施例的一种通信方法,图3的通信方法可以是由控制端设备执行;在本公开实施例中,控制端设备包括但不限于波束成形的发起方,诸如,AP或任何类型的控制器。为了方便起见,以AP作为波束成形的发起方的示例来进行描述。
参照图3,在步骤310中,确定第一消息帧。根据示例实施例,第一消息帧至少包括用于指示带宽信息的子域,并且用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;在步骤320中,发送第一消息帧。在本公开实施例中,确定第一消息帧的方式可以有很多种,例如:AP可以根据以下的至少一种情况来生成第一消息帧:网络情况、负载情况、控制端设备的硬件能力、接收端设备的硬件能力、业务类型、相关协议规定;对此本公开实施例不作具体限制。在本公开实施例中,AP还可以从外部设备获取该第一消息帧,对此本公开实施例不作具体限制。
作为非限制性示例,步骤310中描述的配置信息表示波束成形的发起方(例如,AP)请求波束成形的接收方(例如,相关联的站点STA)对于每一个资源单元RU反馈信道状态信息(CSI,channel state information)。第一信道带宽可以对应于以下的任意一种或多种带宽,例如:20MHz、40MHz、80MHz、160MHz/80+80MHz、240MHz/160+80MHz(在下文也称为第二类型带宽)、320MHz/160+160MHz(在下文也称为第一类型带宽)。
在本公开的所有实施例中,该起始位置和结束位置都可以为绝对值或相对值。以起始位置为例,绝对值是指该起始位置是RU的索引值,相对值是指该起始位置是RU相对一个参考点的偏移值。例如,第一类型带宽可以是320MHz,则该第一类型带宽在一些示例中可以被分为高频段和低频段,低频段对应0-73RU,高频段对应74-147RU;该起始位置可以为相当于高频段的起始点的偏移值;例如当RU的起始位置的绝对值为100时,其相对于参考点(索引值为74的高频段的起始点)的偏移值可以为26(100-74=26)。在本公开的所有实施例中,起始位置都可以为绝对值或相对值,且结束位置也可以为绝对值或相对值,以后不再赘述。然而,这仅是示例性的,本公开的实施例不限于此。
在本公开的所有实施例中,起始位置标识可以是指示RU起始位置(绝对值或相对值),而结束位置标识可以表示RU个数。例如,起始位置标识可以为125,结束位置标识可以是5,这样可以表示波束成形的发起方通过第一消息帧请求波束成形的接收方针对26-tone RU 125至26-tone RU 130(130=125+5)中的每一个RU来反馈信道状态信息。然而,这仅是示例性的,本公开的实施例不限于此。
根据实施例,第一消息帧可以包括单个帧,也可以包括多个帧。例如,第一消息帧可以包括NDP声明帧,并且还可以包括随后需要发送的NDP帧,在本申请中主要描述NDP声明帧,但是应该理解,本公开的实施例不限于此。在步骤310中,作为一个示例,可以类似于图2中所述的NDP声明帧格式来确定第一消息帧的格式,并且稍后将详细描述第一消息帧包括的用于指示带宽信息的子域。
根据本公开的实施例,第一消息帧至少还包括用于指示第一消息帧类型的类型标识。在第一消息帧应用于IEEE802.11be标准中的情况下,第一消息帧包括的类型标识可以将第一消息帧的类型标识为IEEE802.11be标准帧。
根据本公开的实施例,可以重新定义图2所示的HE NDP声明帧的格式。例如,可以在探测对话令牌(Sounding Dialog Token)子域中定义用于指示第一消息帧类型的类型标识,如下面的表格1所示:
表格1
Figure PCTCN2020096656-appb-000001
在表格1中,探测对话令牌个数(sounding dialog token Number)子域包括由波束成形的发起方选择的值,用于标识NDP声明帧,这与IEEE802.11ax标准相似,为了简明,在此不再赘述。
参照表格1,在现有的HE NDP声明帧中,探测对话令牌(Sounding Dialog Token)子域中的保留(Reserved)子域包括2比特,并且现有的HE NDP声明帧不存在指示第一消息帧类型的类型标识。根据本公开的实施例,可以利用Reserved子域中的1比特来定义指示第一消息帧类型的类型标识(例如,表格1中的HE子域)。也就是说,将Reserved子域中的1比特设置为HE子域,并且在HE子域中定义第一消息帧的类型,例如,第一消息帧类型可以为IEEE802.11be标准帧或其他相关标准中的帧。然而,这仅是示例性的,本公开的实施例不限于此。例如,第一消息帧包括的类型标识可以位于图2中所示的帧控制(Frame Control)的子域中(例如,Frame Control子域中的一个或多个保留位),例如,在第一消息帧应用于IEEE802.11be标准中的情况下,可以在帧控制(Frame Control)的子域中将第一消息帧的类型标识为IEEE802.11be标准帧。此外,作为另一示例,还可以在第一消息帧的物理帧头部分中包括用于指示第一消息帧类型的类型标识,此时,类型标识指示带宽类型信息,例如,利用带宽Bandwidth(BW)子域来指 示带宽类型信息。
现在详细描述第一消息帧包括的用于指示带宽信息的子域。作为非限制性实施例,用于指示带宽信息的子域可以是图2中的Partial BW Info子域,然而这仅是示例性的,用于指示带宽信息的子域的格式可以根据第一消息帧的格式来不同地改变。
根据本公开的实施例,在第一消息帧中,用于指示带宽信息的子域至少包括:用于指示第一信道带宽的起始位置的起始位置标识和结束位置的结束位置标识。也就是说,在用于指示带宽信息的子域中,可以定义起始位置标识来指示第一信道带宽的带宽范围的RU起始位置,并且可以定义结束位置标识来指示第一信道带宽的带宽范围的RU结束位置。作为非限制性实施例,起始位置标识的示例可以是图2中所示的RU Start Index子域,结束位置标识的示例可以是图2中所示的RU End Index。下面将详细描述根据本公开的实施例的起始位置标识和结束位置标识。
根据本公开的实施例,在第一消息帧中,第一信道带宽可以对应于第一类型带宽,在此情况下,第一消息帧中包括的用于指示带宽信息的子域可以包括用于指示第一类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。例如,第一类型带宽可以是320MHz,第一类型带宽对应的带宽范围的资源单元RU的索引可以包括0-147,即,在第一类型带宽(320MHz)的情况下,可以表示一共148个26-tone RU。也就是说,起始位置标识和结束位置标识可以在0-147范围内取值。例如,起始位置标识可以为125,结束位置标识可以为130,这表示波束成形的发起方通过第一消息帧请求波束成形的接收方针对26-tone RU 125至26-tone RU 130中的每一个RU来反馈信道状态信息。在另一示例中,起始位置标识可以是指示RU起始位置的索引值,而结束位置标识可以表示RU个数。例如,起始位置标识可以为125,结束位置标识可以是5,这样也可以表示波束成形的发起方通过第一消息帧请求波束成形的接收方针对26-tone RU 125至26-tone RU 130(130=125+5)中的每一个RU来反馈信道状态信息。然而,这仅是示例性的,本公开的实施例不限于此。
根据本公开的实施例,第一信道带宽对应于第一类型带宽(例如, 160+160MHz),在此情况下,用于指示带宽信息的子域包括:用于指示第一类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者用于指示第一类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。在一个示例中,低频段可以指示第一类型带宽(例如,160+160MHz)中的较低的160MHz频段,在此情况下,第一类型带宽对应的带宽范围的低频段中的RU的索引可以包括0-73,其表示低频段160MHz带宽26-tone RU的个数为74。也就是说,在低频段160MHz中,起始位置标识和结束位置标识可以在0-73范围内取值。在一个示例中,高频段可以指示第一类型带宽(例如,160+160MHz)中的较高的160MHz频段,在此情况下,第一类型带宽对应的带宽范围的高频段中的RU的索引可以包括74-147,其表示高频段160MHz带宽26-tone RU的个数为74。也就是说,在高频段160MHz中,起始位置标识和结束位置标识可以在74-147范围内取值。然而,这仅是示例性的,本公开实施例不限于此,例如,上述关于“起始位置标识可以是指示RU起始位置的索引值,而结束位置标识可以表示RU个数”的示例也可以分别应用于低频段160MHz和高频段160MHz,为了简明,在此省略重复的描述。
根据本公开的实施,在第一消息帧中,第一信道带宽可以对应于第二类型带宽,在此情况下,第一消息帧中包括的用于指示带宽信息的子域可以包括用于指示第二类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。例如,第二类型带宽可以是240MHz,第一类型带宽对应的带宽范围的资源单元RU的索引可以包括0-110,即,在第二类型带宽(240MHz)的情况下,可以表示一共111个26-tone RU。也就是说,起始位置标识和结束位置标识可以在0-110范围内取值。例如,起始位置标识可以为70,结束位置标识可以为80,这表示波束成形的发起方通过第一消息帧请求波束成形的接收方针对26-tone RU 70至26-tone RU 80中的每一个RU来反馈信道状态信息。然而,这仅是示例性的,本公开实施例不限于此,例如,上述关于“起始位置标识可以是指示RU起始位置的索引值,而结束位置标识可以表示RU个数”的示例也可以分别应用于第二类型带宽240MHz,为了简明,在此省略重复的描述。
根据本公开的实施例,第一信道带宽对应于第二类型带宽(例如,160+80MHz),在此情况下,用于指示带宽信息的子域包括:用于指示第二类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者第二类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。在一个示例中,低频段可以指示第二类型带宽(160+80MHz)的较低的160MHz频段,在此情况下,第二类型带宽对应的带宽范围的低频段中的RU的索引可以包括0-73,其表示低频段160MHz带宽26-tone RU的个数为74。也就是说,在低频段160MHz中,起始位置标识和结束位置标识可以在0-73范围内取值。在一个示例中,高频段可以指示第二类型带宽(160+80MHz)中的较高的80MHz频段,在此情况下,第二类型带宽对应的带宽范围的高频段中的RU的索引可以包括74-110,其表示高频段80MHz带宽26-tone RU的个数为37。也就是说,在高频段80MHz中,起始位置标识和结束位置标识可以在74-110范围内取值。然而,这仅是示例性的,本公开实施例不限于此,例如,上述关于“起始位置标识可以是指示RU起始位置的索引值,而结束位置标识可以表示RU个数”的示例也可以分别应用于低频段160MHz和高频段80MHz,为了简明,在此省略重复的描述。
根据本公开的实施例,第一信道带宽对应于第二类型带宽(例如,240MHz或者160+80MHz),在此情况下,用于指示带宽信息的子域可以包括:用于指示第二类型带宽对应的带宽范围的第一频段资源单元RU的起始位置标识和结束位置标识,或者用于指示第二类型带宽对应的带宽范围的第二频段资源单元RU的起始位置标识和结束位置标识,或者用于指示第二类型带宽对应的带宽范围的第三频段资源单元RU的起始位置标识和结束位置标识。在一个示例中,第一频段可以指示第二类型带宽(例如,240MHz或者160+80MHz)的低频段80MHz,在此情况下,第二类型带宽对应的带宽范围的第一频段中的RU的索引可以包括0-36,其表示低频段80MHz带宽26-tone RU的个数为37。也就是说,在低频段80MHz中,起始位置标识和结束位置标识可以是选自第一范围0-36中的值。在一个示例中,第二频段可以指示第二类型带宽的中频段80MHz,在此情况下,第二类型 带宽对应的带宽范围的第二频段中的RU的索引可以包括37-73,其表示中频段80MHz带宽26-tone RU的个数为37。也就是说,在中频段80MHz中,起始位置标识和结束位置标识可以是选自第二范围37-73中的值。在一个示例中,第三频段可以指示第二类型带宽中的高频段80MHz,在此情况下,第二类型带宽对应的带宽范围的第三频段中的RU的索引可以包括74-110,其表示高频段80MHz带宽26-tone RU的个数为37。也就是说,在高频段80MHz中,起始位置标识和结束位置标识可以是选自第三范围74-110中的值。然而,这仅是示例性的,本公开实施例不限于此,例如,可以利用不同于“低频段80MHz、中频段80MHz、高频段80MHz”的其他方式来划分第一频段、第二频段和第三频段。此外,上述关于“起始位置标识可以是指示RU起始位置的索引值,而结束位置标识可以表示RU个数”的示例也可以分别应用于第一频段、第二频段和第三频段,为了简明,在此省略重复的描述。
此外,本公开的实施例不仅可以应用于上述的第一类型带宽和第二类型带宽,也可以应用于现有标准中的带宽(例如,IEEE802.11ax标准中的20MHz、40MHz、80MHz、160MHz)。例如,可以在物理帧中指明第一消息帧是现有标准中的帧,或者在NDP声明帧的帧控制子域或探测对话令牌子域指明第一消息帧是现有标准中的帧。在这种情况下,起始位置标识和结束位置标识的设置类似于参照图2所描述的方式,为了简明,在此省略重复的描述。
根据本公开实施例的通信方法定义了一种新NDP声明帧格式及其RU Start Index子域及RU End Index子域,使得新NDP声明帧在更大的通信带宽中得到应用,提高吞吐量。
图4是示出根据本公开的实施例的一种通信方法的流程图。图4的方法可以是在接收端设备(即,波束成形的接收方)执行的方法。在一些实施例中,该接收端设备可以为站点。
参照图4,在步骤410中,接收第一消息帧。第一消息帧至少包括用于指示带宽信息的子域,其中,用于指示带宽信息的子域用于标识在第一 信道带宽下的资源单元RU的配置信息。第一消息帧和用于指示带宽信息的子域与上述参照图3描述的类似,为了简明在此省略重复的描述。
在步骤420中,根据用于指示带宽信息的子域标识的资源单元RU的配置信息,确定用于发送第二消息帧的资源单元RU。作为示例,第二消息帧可以表示第一消息帧分配给相关联站点的每一个RU的信道状态信息CSI。然而,这仅是示例性的,本发明构思不限于此,步骤420中的第二消息帧也可以是其他形式的反馈帧。
图5是示出根据本公开的实施例的通信设备500的示图。
参照图5,通信设备500可以包括处理模块510和通信模块530。将理解,图5所示的通信设备500的配置仅是示例性的,根据本公开的实施例的通信设备可以包括更多或更少的模块。
处理模块510可以被配置为:确定第一消息帧,其中,第一消息帧至少包括用于指示带宽信息的子域,其中,用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息。通信模块530可以被配置为:发送第一消息帧。第一消息帧和用于指示带宽信息的子域与上述参照图3描述的类似,为了简明在此省略重复的描述。
参照图5描述的通信设备500可以执行与图3的通信方法相对应的操作,为了简明,在此省略重复的描述。
图6是示出根据本公开的实施例的通信设备600的示图。
参照图5,通信设备600可以包括接收模块610和处理模块630。。将理解,图6所示的通信设备600的配置仅是示例性的,根据本公开的实施例的用于通信设备可以包括更多或更少的模块。
接收模块610可以被配置为:接收第一消息帧,其中,第一消息帧至少包括用于指示带宽信息的子域,其中,用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息。第一消息帧和用于指示带宽信息的子域与上述参照图3描述的类似,为了简明在此省略重复的描述。
处理模块630可以被配置为:根据所述用于指示带宽信息的子域标识的资源单元RU的配置信息,确定用于发送第二消息帧的资源单元RU。 作为示例,第二消息帧可以表示第一消息帧分配给通信设备600的每一个资源单元RU的信道状态信息。然而,这仅是示例性的,本发明构思不限于此,第二消息帧可以是其他形式的反馈帧。此外,通信设备600的处理模块630还可以用于对通过接收模块610接收到的第一消息帧进行处理,以确定相应的反馈帧。
根据本公开实施例的通信设备定义了一种新NDP声明帧格式及其RU Start Index子域及RU End Index子域,使得新NDP声明帧在更大的通信带宽中得到应用,提高吞吐量
此外,图5和图6中的“模块”可以通过软件和/或硬件的结合来实现,对此本公开实施例不进行具体限制。
基于与本公开的实施例所提供的方法相同的原理,本公开的实施例还提供了一种电子设备,该电子设备包括处理器和存储器;其中,存储器中存储有机器可读指令(也可以称为“计算机程序”);处理器,用于执行机器可读指令以实现图3和图4中所示的任一方法。作为示例,该电子设备可以作为用于标识带宽的设备的部分,然而本公开实施例不限于此,例如,该电子设备可以作为与用于标识带宽的设备分离的其他节点。
本公开的实施例还提供了一种计算机可读存储介质,该计算机可读存储介质上存储有计算机程序,计算机程序被处理器执行时实现图3和图4中所示的任一方法。
在示例实施例中,处理器可以是用于实现或执行结合本公开内容所描述的各种示例性的逻辑方框、模块和电路,例如,CPU(Central Processing Unit,中央处理器)、通用处理器、DSP(Digital Signal Processor,数据信号处理器)、ASIC(Application Specific Integrated Circuit,专用集成电路)、FPGA(Field Programmable Gate Array,现场可编程门阵列)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合、DSP和微处理器的组合等。
在示例实施例中,存储器可以是,例如,ROM(Read Only Memory,只读存储器)、RAM(Random Access Memory,随机存取存储器)、EEPROM (Electrically Erasable Programmable Read Only Memory,电可擦可编程只读存储器)、CD-ROM(Compact Disc Read Only Memory,只读光盘)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的程序代码并能够由计算机存取的任何其他介质,但不限于此。
应该理解的是,虽然附图的流程图中的各个步骤按照箭头的指示依次显示,但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明,这些步骤的执行并没有严格的顺序限制,其可以以其他的顺序执行。此外,附图的流程图中的至少一部分步骤可以包括多个子步骤或者多个阶段,这些子步骤或者阶段并不必然是在同一时刻执行完成,而是可以在不同的时刻执行,其执行顺序也不必然是依次进行,而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
虽然已经参照本公开的某些实施例示出和描述了本公开,但是本领域技术人员将理解,在不脱离本公开的范围的情况下,可以在形式和细节上进行各种改变。因此,本公开的范围不应被限定为受限于实施例,而是应由所附权利要求及其等同物限定。

Claims (22)

  1. 一种通信方法,所述通信方法包括:
    确定第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;
    发送所述第一消息帧。
  2. 根据权利要求1所述的通信方法,其中,
    所述用于指示带宽信息的子域至少包括:用于指示第一信道带宽的带宽范围的起始位置的起始位置标识和结束位置的结束位置标识。
  3. 根据权利要求2所述的通信方法,其中,
    所述第一信道带宽对应于第一类型带宽,且所述用于指示带宽信息的子域包括用于指示所述第一类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。
  4. 根据权利要求2所述的通信方法,其中,
    所述第一信道带宽对应于第一类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第一类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者用于指示所述第一类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。
  5. 根据权利要求2所述的通信方法,其中,
    所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括用于指示所述第二类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。
  6. 根据权利要求2所述的通信方法,其中,
    所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第二类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者所述第二类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。
  7. 根据权利要求2所述的通信方法,其中,
    所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第二类型带宽对应的带宽范围的第一频段资源单元RU的起始位置标识和结束位置标识,用于指示所述第二类型带宽对应的带宽范围的第二频段资源单元RU的起始位置标识和结束位置标识,或者用于指示所述第二类型带宽对应的带宽范围的第三频段资源单元RU的起始位置标识和结束位置标识。
  8. 根据权利要求1至7中的任一项所述的通信方法,其中,
    所述第一消息帧至少还包括用于指示所述第一消息帧类型的类型标识。
  9. 根据权利要求3至7中的任一项所述的通信方法,其中,
    所述第一信道带宽对应于所述第一类型带宽或者所述第二类型带宽,
    其中,所述第一类型带宽为320MHz或160MHz+160MHz,所述第二类型带宽为240MHz或160MHz+80MHz。
  10. 一种通信方法,所述通信方法包括:
    接收第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;
    根据所述用于指示带宽信息的子域标识的资源单元RU的配置信息,确定用于发送第二消息帧的资源单元RU。
  11. 根据权利要求9所述的通信方法,其中,
    所述用于指示带宽信息的子域至少包括:用于指示第一信道带宽的带宽范围的起始位置的起始位置标识和结束位置的结束位置标识。
  12. 根据权利要求11所述的通信方法,其中,
    所述第一信道带宽对应于第一类型带宽,且所述用于指示带宽信息的子域包括用于指示所述第一类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。
  13. 根据权利要求11所述的通信方法,其中,
    所述第一信道带宽对应于第一类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第一类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者用于指示所述第一类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。
  14. 根据权利要求11所述的通信方法,其中,
    所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括用于指示所述第二类型带宽对应的带宽范围的资源单元RU的起始位置标识和结束位置标识。
  15. 根据权利要求11所述的通信方法,其中,
    所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第二类型带宽对应的带宽范围的低频段资源单元RU的起始位置标识和结束位置标识,或者所述第二类型带宽对应的带宽范围的高频段资源单元RU的起始位置标识和结束位置标识。
  16. 根据权利要求11所述的通信方法,其中,
    所述第一信道带宽对应于第二类型带宽,且所述用于指示带宽信息的子域包括:用于指示所述第二类型带宽对应的带宽范围的第一频段资源单 元RU的起始位置标识和结束位置标识,用于指示所述第二类型带宽对应的带宽范围的第二频段资源单元RU的起始位置标识和结束位置标识,或者用于指示所述第二类型带宽对应的带宽范围的第三频段资源单元RU的起始位置标识和结束位置标识。
  17. 根据权利要求10至16中的任一项所述的通信方法,其中,
    所述第一消息帧至少还包括用于指示所述第一消息帧类型的类型标识。
  18. 根据权利要求12至16中的任一项所述的通信方法,其中,
    所述第一信道带宽对应于所述第一类型带宽或者所述第二类型带宽,
    其中,所述第一类型带宽为320MHz或160MHz+160MHz,所述第二类型带宽为240MHz或160MHz+80MHz。
  19. 一种通信设备,所述通信设备包括:
    处理模块,被配置为:确定第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;
    通信模块,被配置为:发送第一消息帧。
  20. 一种通信设备,所述通信设备包括:
    接收模块,被配置为:接收第一消息帧,其中,所述第一消息帧至少包括用于指示带宽信息的子域,其中,所述用于指示带宽信息的子域用于标识在第一信道带宽下的资源单元RU的配置信息;
    处理模块,被配置为:根据所述用于指示带宽信息的子域标识的资源单元RU的配置信息,确定用于发送第二消息帧的资源单元RU。
  21. 一种电子设备,所述电子设备包括存储器和处理器;
    所述存储器中存储有计算机程序;
    所述处理器用于在运行所述计算机程序时执行权利要求1至9中任一项、或者权利要求10至18中任一项所述的方法。
  22. 一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序在被处理器运行时用于执行权利要求1至9中任一项、或者权利要求9至18中任一项所述的方法。
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