WO2014114247A1 - Dispositif de communication de données et procédé permettant d'identifier la bande passante d'un canal - Google Patents

Dispositif de communication de données et procédé permettant d'identifier la bande passante d'un canal Download PDF

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Publication number
WO2014114247A1
WO2014114247A1 PCT/CN2014/071195 CN2014071195W WO2014114247A1 WO 2014114247 A1 WO2014114247 A1 WO 2014114247A1 CN 2014071195 W CN2014071195 W CN 2014071195W WO 2014114247 A1 WO2014114247 A1 WO 2014114247A1
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Prior art keywords
frame
channel bandwidth
header
message
message frame
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PCT/CN2014/071195
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English (en)
Chinese (zh)
Inventor
董贤东
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东莞宇龙通信科技有限公司
宇龙计算机通信科技(深圳)有限公司
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Publication of WO2014114247A1 publication Critical patent/WO2014114247A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data communication apparatus and a method for identifying a channel bandwidth. Background technique
  • IEEE (American Institute of Electrical and Electronics Engineers) 802.1 lad technology is mainly used in home entertainment, featuring: large data volume transmission, high data rate, but its coverage is small, about 10 meters or less.
  • 802.1 1ad technology uses 60 GHz frequency, but in China due to the frequency management regulations, 60 GHz frequency allocation to 802.1 l ad resources is very small, so no commission has allocated 40 GHz-50 GHz frequency for l Lad, called CMMW (China Millimeter Wave, China Millimeter Wave) in China, called 802.1 1aj in IEEE
  • OBSS overlapping Basis Service Set, overlapping basic service set
  • BSS basic service set
  • PBSS personal basis service set
  • the 802.1 1aj device can realize dynamic channel allocation, and at least 60 BSS/PBSS can be established under the 60 GHz frequency.
  • the invention is based on the above problems, and proposes a new technical solution, so that in the 60 GHz frequency, the 802. l laj device can realize dynamic channel allocation, and at least three BSS/PBSS can be established under the 60 GHz frequency. Demand.
  • the present invention provides a data communication apparatus, including: a data processing module, generating a message frame, where the message frame includes a channel bandwidth information identifier bit, and when the value of the channel bandwidth information identifier bit is a first value , indicating that the data communication device operates at a frequency of 540 MHz in a frequency of 60 GHz, and when the value of the channel bandwidth information flag is a second value, indicating that the data communication device operates at a frequency of 1.0 GHz in a frequency of 60 GHz , the channel bandwidth information
  • the value of the flag bit is a third value, indicating that the data communication device operates at a frequency of 2.16 GHz in a frequency of 60 GHz; and/or, the channel bandwidth information flag included in the message frame received by the parsing data interaction module
  • the value of the channel bandwidth information identifier bit is 540 MHz channel bandwidth in the 60 GHz frequency
  • the value of the channel bandwidth information identifier bit is In the case of a binary value, the sender of the message
  • the data communication device may be a STA, such as a mobile phone or a tablet, or an access point, such as a wireless router or a personal network control device (PNC), and the data processing module may be data in the data communication device.
  • the processed chip module, and the data interaction module is equivalent to a signal transceiver device and an antenna.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is occupied by the 60 GHz frequency.
  • Channel bandwidth specifically, for example, the channel bandwidth information identifier bit occupies 2 bits, and when the value is "01", it indicates that the sender of the message frame operates at a frequency of 540 MHz in the 60 GHz frequency, when the value is "10" indicates that the sender of the message frame operates at a frequency of 1.08 GHz in the 60 GHz frequency. When the value is "1 1”, it indicates that the sender of the message frame operates at 2.16 GHz channel in the 60 GHz frequency. Bandwidth, of course, more bits can be used to identify the channel bandwidth information identifier, which will not be described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more bits in the physical header of the message can be used.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is one or more bits of a Header subfield of the single subcarrier (SC) physical frame header;
  • the physical frame header is a low power SC physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header subfield of the low power SC physical frame header.
  • the Header subfield is included in the four formats of the physical frame header (the control physical frame header is specifically Header Block subfield), therefore, the reserved bits in the Header subfield can be used as the channel bandwidth identifier to indicate the channel bandwidth at which the STA or PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information identifier. Bit, when the value is "01”, it identifies the 540MHz channel bandwidth at 60GHz, and when the value is "10", it identifies the 1.08GHz channel bandwidth in the 60GHz frequency. When the value is "1 1" Identifies the 2.16 GHz channel bandwidth in the 60 GHz frequency. Of course, more bits can be used to represent the channel bandwidth information bits.
  • the identification method is the same as the identification method using 2 bits, and will not be described here.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information identifier bit is used to determine the channel bandwidth of the sender of the MAC frame, and the dynamic allocation of the channel in the 60 GHz frequency is realized.
  • the message frame is a beacon frame or a probe request frame
  • the MAC may be used.
  • One or more bits of the header portion represent the channel bandwidth information identification bits, where the beacon frame may be a general communication frame or a directional multi-giga (DMG) beacon frame.
  • DMG directional multi-giga
  • the channel bandwidth information identifier bit is one or more bits of a frame body portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • the message frame is a beacon frame or a probe request frame
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • a method for identifying a channel bandwidth including: generating a message frame, where the message frame includes a channel bandwidth information identifier bit, and the value of the channel bandwidth information identifier bit is a first value.
  • the sender of the message frame operates at a frequency of 540 MHz in a frequency of 60 GHz
  • the value of the channel bandwidth information flag is a second value
  • the 1.08 GHz channel bandwidth when the value of the channel bandwidth information flag is a third value, indicates that the sender of the message frame operates at a frequency of 2.16 GHz in the 60 GHz frequency; the message frame is transmitted.
  • the data communication device may be a STA, such as a mobile phone or a tablet, or an access point, such as a wireless router or a personal network control device (PNC), and the data processing module may be data in the data communication device.
  • the processed chip module, and the data interaction module is equivalent to a signal transceiver device and an antenna.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is occupied by the 60 GHz frequency.
  • Channel bandwidth specifically, for example, the channel bandwidth information identifier bit occupies 2 bits, and when the value is "01", it indicates that the sender of the message frame operates at a frequency of 540 MHz in the 60 GHz frequency, when the value is "10" indicates that the sender of the message frame operates at a frequency of 1.08 GHz in the 60 GHz frequency. When the value is "1 1”, it indicates that the sender of the message frame operates at 2.16 GHz channel in the 60 GHz frequency. Bandwidth, of course, more bits can be used to identify the channel bandwidth information identifier. Bit, no longer repeat here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more bits in the physical header of the message can be used.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is one or more bits of a Header subfield of the single subcarrier (SC) physical frame header;
  • the physical frame header is a low power SC physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header subfield of the low power SC physical frame header.
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • the flag indicates the channel bandwidth at which the STA or the PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information flag.
  • the value is "01”
  • the 540MHz channel is identified at 60 GHz.
  • Bandwidth when the value is "10”, identifies the 1.08GHz channel bandwidth in the 60GHz frequency.
  • the value is "1 1”, it identifies the 2.16GHz channel bandwidth in the 60GHz frequency.
  • the bit is used to indicate the channel bandwidth information bit, and the identification method is the same as the identification method using 2 bits, and details are not described herein again.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information identifier bit is used to determine the channel bandwidth of the sender of the MAC frame, and the dynamic allocation of the channel in the 60 GHz frequency is realized. Specifically, if the message frame is a beacon frame or a probe request frame, the MAC may be used.
  • the channel bandwidth information identifier bit is one or more bits of a frame body part of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame. Obtaining the channel bandwidth information identifier bit to determine the channel bandwidth of the sender of the MAC frame, and realizing dynamic allocation of the channel in the 60 GHz frequency.
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • a method for identifying a channel bandwidth including: receiving a message frame, where the message frame includes a channel bandwidth information identifier bit; and parsing a value of the channel bandwidth information identifier bit, where When the value of the channel bandwidth information identifier bit is a first value, the sender of the message frame operates at a frequency of 540 MHz in a frequency of 60 GHz, and when the value of the channel bandwidth information flag is a second value, The sender of the message frame operates at a frequency of 1.08 GHz in a frequency of 60 GHz. When the value of the channel bandwidth information flag is a third value, it indicates that the sender of the message frame operates at 2.16 in the 60 GHz frequency. GHz channel bandwidth.
  • the data communication device may be a STA, such as a mobile phone or a tablet, or an access point, such as a wireless router or a personal network control device (PNC), and the data processing module may be data in the data communication device.
  • the processed chip module, and the data interaction module is equivalent to a signal transceiver device and an antenna.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is occupied by the 60 GHz frequency.
  • Channel bandwidth specifically, for example, the channel bandwidth information identifier bit occupies 2 bits, and when the value is "01", it indicates that the sender of the message frame operates at a frequency of 540 MHz in the 60 GHz frequency, when the value is "10" indicates that the sender of the message frame operates at a frequency of 1.08 GHz in the 60 GHz frequency. When the value is "1 1”, it indicates that the sender of the message frame operates at 2.16 GHz channel in the 60 GHz frequency. Bandwidth, of course, more bits can be used to identify the channel bandwidth information identifier, which will not be described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more of the physical headers of the message may be used. Bits represent the channel bandwidth information flag.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is One or more bits of the Header Block subfield of the control physical frame header; or the physical frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is Orthogonal Frequency Division Format (OFDM Frame Format) One or more bits of the Header subfield of the physical frame header; or the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is One or more bits of the Header subfield of the single subcarrier (SC) physical frame header; or the physical frame header is a low power SC (low power SC) physical frame header, and the channel bandwidth information identifier bit is Low power SC One or more bits of the Header subfield of the physical frame header.
  • OFDM Frame Format Orthogonal Frequency Division Format
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • the flag indicates the channel bandwidth at which the STA or the PCP/AP operates. For example: Two bits are used to identify the channel bandwidth information flag. When the value is "01”, the 540MHz channel is identified at 60 GHz. Bandwidth, when the value is "10”, identifies the 1.08GHz channel bandwidth in the 60GHz frequency. When the value is "1 1", it identifies the 2.16GHz channel bandwidth in the 60GHz frequency. Of course, you can use more.
  • the bit is used to indicate the channel bandwidth information bit, and the identification method is the same as the identification method using 2 bits, and details are not described herein again.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information identifier bit is used to determine the channel bandwidth of the sender of the MAC frame, and the dynamic allocation of the channel in the 60 GHz frequency is realized.
  • the message frame is a beacon frame or a probe request frame
  • the MAC may be used.
  • One or more bits of the header portion represent the channel bandwidth information identification bits, where the beacon frame may be a general communication frame or a directional multi-giga (DMG) beacon frame.
  • DMG directional multi-giga
  • the channel bandwidth information identifier bit is one or more bits of a frame body portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • the message frame is a beacon frame or a probe request frame
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • the present invention also provides a method for identifying a channel bandwidth, including: generating a message frame, where the message frame includes a channel bandwidth information identifier bit, and when the value of the channel bandwidth information identifier bit is a first value, indicating the message
  • the sender of the frame operates at a channel bandwidth of 2.16 GHz in the frequency of 60 GHz.
  • the value of the channel bandwidth information flag is a second value, it indicates that the sender of the message frame operates at a frequency of 1.08 GHz in a frequency of 60 GHz. And send the message frame.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is
  • the message is represented.
  • the sender of the frame operates at a 540 MHz channel bandwidth at 60 GHz.
  • the channel bandwidth of 2.16 GHz in the 60 GHz frequency can also use more bits to identify the channel bandwidth information identifier, which will not be described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more bits in the physical header of the message can be used.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is one or more bits of a Header subfield of the single subcarrier (SC) physical frame header;
  • the physical frame header is a low power SC physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header subfield of the low power SC physical frame header.
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • a flag indicating the channel bandwidth at which the STA or the PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information flag. When the value is "01”, the flag is 1.08 GHz at 60 GHz.
  • Channel bandwidth when the value is "00”, it identifies the 2.16GHz channel bandwidth in the 60GHz frequency.
  • more bits can be used to represent the channel bandwidth information bits.
  • the identification method and the identifier with 2 bits are used. The method is the same, and will not be described here.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information flag bit to determine the channel bandwidth of the sender of the MAC frame In this case, the dynamic allocation of the channel in the 60 GHz frequency is implemented.
  • the message frame is a beacon frame or a probe request frame
  • one or more bits of the MAC header portion may be used to represent the channel bandwidth information identifier.
  • the beacon frame here may be a general communication frame or a directional Multi-giga (DMG) beacon frame.
  • the channel bandwidth information identifier bit is one or more bits of a frame body portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • the message frame is a beacon frame or a probe request frame
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • the present invention also provides a method for identifying a channel bandwidth, including: receiving a message frame, the message frame includes a channel bandwidth information identifier bit, and parsing a value of the channel bandwidth information identifier bit, wherein the channel bandwidth information identifier
  • the value of the bit is the first value, it indicates that the sender of the message frame works at a channel bandwidth of 2.16 GHz in the frequency of 60 GHz, and when the value of the channel bandwidth information flag is a second value, it indicates that the message frame is The sender operates at a 1.08 GHz channel bandwidth in the 60 GHz frequency.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is
  • the value of the channel bandwidth information identifier bit is a third value, it indicates that the sender of the message frame operates at a frequency of 540 MHz under a frequency of 60 GHz.
  • the channel bandwidth of 2.16 GHz in the 60 GHz frequency can also use more bits to identify the channel bandwidth information identifier, which will not be described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more of the physical headers of the message may be used.
  • Bits represent the channel bandwidth information flag.
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is one or more bits of a Header subfield of the single subcarrier (SC) physical frame header;
  • the physical frame header is a low power SC physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header subfield of the low power SC physical frame header.
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • a flag indicating the channel bandwidth at which the STA or the PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information flag. When the value is "01”, the flag is 1.08 GHz at 60 GHz.
  • Channel bandwidth when the value is "00”, it identifies the 2.16GHz channel bandwidth in the 60GHz frequency.
  • more bits can be used to represent the channel bandwidth information bits.
  • the identification method and the identifier with 2 bits are used. The method is the same, and will not be described here.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information identifier bit is used to determine the channel bandwidth of the sender of the MAC frame, and the dynamic allocation of the channel in the 60 GHz frequency is realized.
  • the message frame is a beacon frame or a probe request frame
  • the MAC may be used.
  • One or more bits of the header portion represent the channel bandwidth information identification bits, where the beacon frame may be a general communication frame or a directional multi-giga (DMG) beacon frame.
  • DMG directional multi-giga
  • the channel bandwidth information identifier bit is one or more bits of a frame body portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • the message frame is a beacon frame or a probe request frame
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • the 802.1 1aj device can achieve dynamic channel allocation in the 60 GHz frequency, and at least three BSS/PBSS requirements can be established under the 60 GHz frequency.
  • FIG. 1 shows a block diagram of a data communication device in accordance with an embodiment of the present invention
  • FIG. 2 is a flow chart showing a method of identifying a channel bandwidth according to an embodiment of the present invention
  • FIG. 3 is a flow chart showing a method of identifying a channel bandwidth according to another embodiment of the present invention.
  • FIG. 4 is a block diagram showing a structure of a frame for controlling a physical frame header according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram showing a frame structure of a physical frame header of an OFDM frame format according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram showing a frame structure of a single-subcarrier (SC) physical frame header or a low-power single-subcarrier (low power SO physical frame header) according to an embodiment of the present invention.
  • SC single-subcarrier
  • SO physical frame header low-power single-subcarrier
  • FIG. 1 shows a block diagram of a data communication device in accordance with an embodiment of the present invention.
  • a data communication apparatus 100 includes: a data processing module 102, which generates a message frame, where the message frame includes a channel bandwidth information identifier bit, and the value of the channel bandwidth information identifier bit
  • the value is the first value, it indicates that the data communication device 100 operates at a frequency of 540 MHz in the frequency of 60 GHz, and when the value of the channel bandwidth information flag is a second value, it indicates that the data communication device 100 operates at 60 GHz.
  • the value of the channel bandwidth information flag is a third value, indicating that the data communication device 100 operates at a frequency of 2.16 GHz in a 60 GHz frequency; and/or, an analytical data interaction module
  • the value of the channel bandwidth information identifier bit included in the message frame received by the message 104 wherein when the value of the channel bandwidth information identifier bit is the first value, it indicates that the sender of the message frame works under the 60 GHz frequency 540MHz channel bandwidth, when the value of the channel bandwidth information identifier bit is a second value, indicating that the sender of the message frame works at 60 GHz frequency a channel bandwidth of 1.08 GHz, where the value of the channel bandwidth information flag is a third value, indicating that the sender of the message frame operates at a frequency of 2.16 GHz in a frequency of 60 GHz; the data interaction module 104, sends and / or receive the message frame.
  • the data communication device 100 may be a STA, such as a mobile phone or a tablet, or an access point, such as a wireless router or a personal network control device (PNC), and the data processing module 102 may be a data communication device.
  • the chip module for data processing, and the data interaction module 104 is equivalent to a signal transmitting device and an antenna.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is occupied by the 60 GHz frequency.
  • the channel bandwidth specifically, for example, the channel bandwidth information identifier bit occupies 2 bits, and when the value is "01", it indicates that the sender of the message frame operates at a frequency of 540 MHz in the 60 GHz frequency, when the value is "10" indicates that the sender of the message frame works at the 1.08 GHz channel bandwidth in the 60 GHz frequency. When the value is "1 1 ", it indicates that the sender of the message frame operates at 2.16 GHz channel in the 60 GHz frequency. Bandwidth, of course, more bits can be used to identify the channel bandwidth information identifier, which will not be described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame for data interaction between the two parties.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can be other management message frames, and will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more bits in the physical header of the message can be used.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is one or more bits of a Header subfield of the single subcarrier (SC) physical frame header;
  • the physical frame header is a low power SC physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header subfield of the low power SC physical frame header.
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • the flag indicates the channel bandwidth at which the STA or the PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information flag.
  • the value is "01”
  • the 540MHz channel is identified at 60 GHz.
  • Bandwidth when the value is "10”, identifies the 1.08GHz channel bandwidth in the 60GHz frequency.
  • the value is "1 1”, it identifies the 2.16GHz channel bandwidth in the 60GHz frequency.
  • the bit is used to indicate the channel bandwidth information bit, and the identification method is the same as the identification method using 2 bits, and details are not described herein again.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information identifier bit is used to determine the channel bandwidth of the sender of the MAC frame, and the dynamic allocation of the channel in the 60 GHz frequency is realized.
  • the message frame is a beacon frame or a probe request frame
  • the MAC may be used.
  • One or more bits of the header portion represent the channel bandwidth information identification bits, where the beacon frame may be a general communication frame or a directional multi-giga (DMG) beacon frame.
  • DMG directional multi-giga
  • the channel bandwidth information identifier bit is one or more bits of a frame body part of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information flag, and the frame body part channel
  • the bandwidth information identifier may be in the form of an information element (IE, information elements), where the beacon frame may be a normal communication frame or a directional multi-giga (DMG) beacon frame.
  • IE information elements
  • FIG. 2 shows a flow chart of a method of identifying a channel bandwidth in accordance with one embodiment of the present invention.
  • the method for identifying a channel bandwidth includes: Step 202: Generate a message frame, where the message frame includes a channel bandwidth information identifier bit, and the value of the channel bandwidth information identifier bit And determining, by the sender of the message frame, which channel bandwidth is used in the 60 GHz frequency, where the value of the channel bandwidth information identifier bit is a first value, indicating that the sender of the message frame works at 60 GHz frequency
  • the sender of the message frame operates at a frequency of 1.08 GHz in the 60 GHz frequency, and the value of the channel bandwidth information flag
  • it is the third value it indicates that the sender of the message frame works at the 2.16 GHz channel bandwidth in the 60 GHz frequency
  • Step 204 the message frame is sent.
  • the data communication device may be a STA, such as a mobile phone or a tablet, or an access point, such as a wireless router or a personal network control device (PNC), and the data processing module may be data in the data communication device.
  • the processed chip module, and the data interaction module is equivalent to a signal transceiver device and an antenna.
  • the corresponding channel bandwidth information identifier is set in the message frame, so that the receiver of the message frame can determine the specific value of the channel bandwidth information identifier bit, thereby determining that the sender of the message frame is occupied by the 60 GHz frequency.
  • Channel bandwidth specifically, for example, the channel bandwidth information identifier bit occupies 2 bits, and when the value is "01", it indicates that the sender of the message frame operates at a frequency of 540 MHz in the 60 GHz frequency, when the value is "10" indicates that the sender of the message frame operates at a frequency of 1.08 GHz in the 60 GHz frequency. When the value is "1 1”, it indicates that the sender of the message frame operates at 2.16 GHz channel in the 60 GHz frequency. Bandwidth, of course, more bits can be used to identify the channel bandwidth information identifier, which will not be described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more bits in the physical header of the message can be used.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header
  • the channel bandwidth information identifier bit is a Header subfield of the single subcarrier (SC) physical frame header One or more bits
  • the physical frame header is a low power SC physical frame header
  • the channel bandwidth information flag is the Header of the low power SC physical frame header One or more bits of a subdomain.
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • the flag indicates the channel bandwidth at which the STA or the PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information flag.
  • the value is "01”
  • the 540MHz channel is identified at 60 GHz.
  • Bandwidth when the value is "10”, identifies the 1.08GHz channel bandwidth in the 60GHz frequency.
  • the value is "1 1”, it identifies the 2.16GHz channel bandwidth in the 60GHz frequency.
  • the bit is used to indicate the channel bandwidth information bit, and the identification method is the same as the identification method using 2 bits, and details are not described herein again.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may be set in a frame header portion of the MAC frame, so that the receiver of the MAC frame can obtain the specified location of the frame header portion of the received MAC frame according to a preset rule.
  • the channel bandwidth information identifier bit is used to determine the channel bandwidth of the sender of the MAC frame, and the dynamic allocation of the channel in the 60 GHz frequency is realized.
  • the message frame is a beacon frame or a probe request frame
  • the MAC may be used.
  • One or more bits of the header portion represent the channel bandwidth information identification bits, where the beacon frame may be a general communication frame or a directional multi-giga (DMG) beacon frame.
  • DMG directional multi-giga
  • the channel bandwidth information identifier bit is one or more bits of a frame body portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • the message frame is a beacon frame or a probe request frame
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • FIG. 3 shows a flow chart of a method of identifying a channel bandwidth in accordance with another embodiment of the present invention.
  • a method for identifying a channel bandwidth includes: Step 302: Receive a message frame, where the message frame includes a channel bandwidth information identifier bit; Step 304, parse the channel bandwidth a value of the information identifier bit, where the value of the channel bandwidth information identifier bit identifies a channel bandwidth of the sender of the message frame operating in the frequency of 60 GHz, wherein when the value of the channel bandwidth information identifier bit is the first value, Indicates that the sender of the message frame operates at a frequency of 540 MHz in the frequency of 60 GHz, and when the value of the channel bandwidth information flag is a second value, it indicates that the sender of the message frame operates at 1.08 in the 60 GHz frequency.
  • the GHz channel bandwidth when the value of the channel bandwidth information flag is a third value, indicates that the sender of the message frame operates at a 2.16 GHz channel bandwidth in the 60 GHz frequency.
  • the data communication device may be a STA, such as a mobile phone or a tablet, or an access point, such as a wireless router or a personal network control device (PNC), and the data processing module may be data in the data communication device.
  • the processed chip module, and the data interaction module is equivalent to a signal transceiver device and an antenna.
  • the sender of the frame works at the 540MHz channel bandwidth in the 60GHz frequency.
  • the value is "10” it indicates that the sender of the message frame works at the 1.08GHz channel bandwidth in the 60GHz frequency.
  • the value is "1 1” , indicating that the sender of the message frame works at the 2.16 GHz channel bandwidth in the 60 GHz frequency.
  • more bits can be used to identify the channel bandwidth information identifier, which is not described here.
  • the message frame is a broadcast message frame, a multicast message frame or a unicast message frame.
  • the message frame may be sent in different manners such as broadcast, multicast, unicast, etc.
  • the message frame may be a frame such as a beacon frame or a probe request frame. It can also be a data frame of a broadcast message; if the message frame is a unicast message frame, it can be a frame such as a probe response frame or a unicast data message.
  • the message frame is a data frame, a management message frame, or an action message frame.
  • the message frame may be sent in the form of a data frame, a management message frame or an action message frame.
  • the message frame may be a unicast data frame in which the two parties communicate data. It may be a multicast or broadcast data frame in which the AP interacts with multiple STAs.
  • the message frame is a management message frame, it may be a unicast probe response message frame, a broadcast beacon frame, or a broadcast probe request frame. It can also be other management message frames, which will not be described here.
  • this message frame can also be sent in the form of other frame types.
  • the channel bandwidth identifier bit includes one or more bits in a physical frame header of the message frame.
  • the message frame is composed of a physical frame header portion and a physical layer convergence procedures service data unit (PSDU), and one or more bits in the physical header of the message can be used.
  • PSDU physical layer convergence procedures service data unit
  • the physical frame header is a control physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header Block subfield of the control physical frame header; or the physical The frame header is an OFDM Frame Format physical frame header, and the channel bandwidth information identifier bit is one or more of a Header subfield of the OFDM Frame Format physical frame header.
  • the physical frame header is a single subcarrier (SC) physical frame header, and the channel bandwidth information identifier bit is one or more bits of a Header subfield of the single subcarrier (SC) physical frame header;
  • the physical frame header is a low power SC physical frame header, and the channel bandwidth information identifier bit is one or more bits of the Header subfield of the low power SC physical frame header.
  • the Header subfield is included in the four formats of the physical frame header (the specific header of the physical frame header is specifically the Header Block subfield), and therefore, the reserved bits in the Header subfield can be used as the channel bandwidth.
  • the flag indicates the channel bandwidth at which the STA or the PCP/AP operates.
  • Two bits are used to identify the channel bandwidth information flag.
  • the value is "01”
  • the 540MHz channel is identified at 60 GHz.
  • Bandwidth when the value is "10”, identifies the 1.08GHz channel bandwidth in the 60GHz frequency.
  • the value is "1 1”, it identifies the 2.16GHz channel bandwidth in the 60GHz frequency.
  • the bit is used to indicate the channel bandwidth information bit, and the identification method is the same as the identification method using 2 bits, and details are not described herein again.
  • the channel bandwidth identifier bit includes one or more bits in a medium access control frame of the message frame.
  • the channel bandwidth flag can also be set in the MAC frame (Media Access Control Frame).
  • the channel bandwidth information identifier bit includes one or more bits of a header portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit can be set in the MAC frame. a frame header portion, such that the receiver of the MAC frame can acquire the channel bandwidth information flag bit according to a preset rule, thereby receiving the specified location of the frame header portion of the MAC frame, to determine the channel of the sender of the MAC frame.
  • Bandwidth condition realizing dynamic allocation of channels in the 60 GHz frequency.
  • the message frame is a beacon frame or a probe request frame
  • one or more bits of the MAC header portion may be used to represent the channel bandwidth information flag.
  • the beacon frame here may be a general communication frame or a directional multi-giga (DMG) beacon frame.
  • the channel bandwidth information identifier bit is one or more bits of a frame body portion of the medium access control frame in the message frame.
  • the channel bandwidth information identifier bit may also be set in the frame body part of the MAC frame, so that the receiver of the MAC frame can follow the preset rule, thereby receiving the specified position of the frame body part of the MAC frame.
  • the message frame is a beacon frame or a probe request frame
  • the message frame may be used.
  • One or more bits of the MAC frame body portion represent the channel bandwidth information identification bit.
  • the channel bandwidth information identification bit may appear in the form of an information element (IE, information elements), where the beacon frame may be Communication frame or direction multi-gigabit (DMG, directional Multi-giga) beacon frame.
  • IE information elements
  • the channel bandwidth of the STA or PCP/AP at 60 GHz includes 540 MHz, 1.08 GHz, and 2.16 GHz. Therefore, two reserved bits in the sent message frame can be utilized as the channel bandwidth information identifier. Bit, to identify the above three cases, such as "01” for 540MHz, "10” for 1.08GHz, "1 1" for 2.16GHz.
  • the channel bandwidth information identifier bit herein may be set in a physical frame header or a medium access control frame of the message frame.
  • Embodiment 1 A channel bandwidth information flag is set in a physical frame header of a message frame.
  • the physical frame header includes four formats: DMG Control PHY (control physical frame header), DMG OFDM PHY (orthogonal frequency division frame format physical frame header), DMG SC PHY (single subcarrier physical frame) Head) and DMG low power SC PHY (low power single subcarrier physical frame header).
  • DMG Control PHY control physical frame header
  • DMG OFDM PHY orthogonal frequency division frame format physical frame header
  • DMG SC PHY single subcarrier physical frame
  • DMG low power SC PHY low power single subcarrier physical frame header
  • FIG. 4 is a schematic diagram showing a frame structure of a physical frame header according to an embodiment of the present invention
  • FIG. 5 is a diagram showing a frame structure of a physical frame header of an OFDM Frame Format according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram showing a frame structure of a single subcarrier (SC) physical frame header or a low power single subcarrier (low power SC) physical frame header (single subcarrier (SC) physical frame header and low according to an embodiment of the present invention
  • the power frame of the low power SC is the same as the frame structure of the physical frame header.
  • the frame structure of the four formats of the physical frame header includes a Header subfield (which is specifically a Header Block subfield in the control physical frame header). Therefore, the STA or the reserved bit in the Header subfield can be used to represent the STA or Is the channel bandwidth at which the PCP/AP operates.
  • Embodiment 2 A channel bandwidth information flag is set in a medium access control frame of a message frame.
  • the channel bandwidth information flag may be set in the frame header portion of the MAC frame (Media Access Control Frame) or in the frame body portion of the MAC frame.
  • the channel bandwidth information flag in the physical frame header or the MAC frame of the message frame is transmitted in the basic MCS.
  • the mode and the maximum power are sent, and the MAC frame adopts the appropriate MCS mode and the appropriate power mode according to the communication strategy.
  • the advantage of the frame header is that it allows all STAs or PCPs/APs to know the channel bandwidth it works on. If MAC frames are used, it does not necessarily enable all STAs to correctly parse the MAC frames.
  • the present invention provides a data communication device and a channel bandwidth identification method, so that in the 60 GHz frequency, the 802.1 1aj device can implement dynamic channel allocation, and at least three BSS/ can be established under the 60 GHz frequency.
  • PBSS needs.

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Abstract

L'invention concerne un dispositif de communication de données comprenant : un module de traitement de données qui génère une trame de message, la trame de message contenant un champ d'identification d'informations sur la bande passante du canal, la valeur dans le champ d'identification d'informations sur la bande passante du canal identifiant la bande passante du canal correspondante, et/ou qui analyse la valeur du champ d'identification d'informations sur la bande passante du canal contenue dans la trame de message reçue par un module d'échange de données, la valeur dans le champ d'identification d'informations sur la bande passante du canal identifiant la bande passante du canal correspondante. L'invention concerne également un procédé permettant d'identifier des bandes passantes de canal. La solution technique de l'invention permet à un équipement 802.11aj de mettre en œuvre une allocation dynamique de canal dans le spectre de fréquence de 60 GHz, répondant ainsi au moins aux exigences d'établissement d'au moins 3 BSS/PBSS dans le spectre de fréquence de 60 GHz.
PCT/CN2014/071195 2013-01-24 2014-01-23 Dispositif de communication de données et procédé permettant d'identifier la bande passante d'un canal WO2014114247A1 (fr)

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