WO2017219214A1 - 一种数据报文的发送方法、通信系统的识别方法及装置 - Google Patents

一种数据报文的发送方法、通信系统的识别方法及装置 Download PDF

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Publication number
WO2017219214A1
WO2017219214A1 PCT/CN2016/086450 CN2016086450W WO2017219214A1 WO 2017219214 A1 WO2017219214 A1 WO 2017219214A1 CN 2016086450 W CN2016086450 W CN 2016086450W WO 2017219214 A1 WO2017219214 A1 WO 2017219214A1
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communication system
data packet
network element
element device
specific data
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PCT/CN2016/086450
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English (en)
French (fr)
Inventor
李振宇
唐文芳
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华为技术有限公司
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Priority to PCT/CN2016/086450 priority Critical patent/WO2017219214A1/zh
Priority to CN201680078106.0A priority patent/CN108476437A/zh
Publication of WO2017219214A1 publication Critical patent/WO2017219214A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for transmitting a data message, a method and a device for identifying a communication system.
  • Wi-Fi Wireless Fidelity
  • QoS Quality of Service
  • LTE Long-term Evolution
  • One method is through carrier aggregation (Carrier Aggregation, CA), the licensed spectrum and the unlicensed spectrum are aggregated together, that is, the equipment of the LTE communication system can use the licensed spectrum as the primary component carrier (PCC) or the primary cell (Primary).
  • PCC primary component carrier
  • PCell primary cell
  • SCC secondary component carrier
  • SCell secondary cell
  • the network element device of the LAA communication system sends a data packet, so that other network element devices that receive the data packet can be effectively identified, thereby determining the current networking mode, so as to facilitate adoption.
  • the correct threshold to determine if the channel is idle is a problem that needs to be solved.
  • the present application provides a method for transmitting a data message, a method and a device for identifying a communication system to be tested, and the device and the network element device for receiving the data message can be valid after the network element device of the LAA communication system transmits the data message.
  • the identification determines the current networking mode so that the correct threshold is used to determine if the channel is idle.
  • An embodiment of the present invention provides a method for sending a data packet, where the method includes:
  • the first network element device of the first communication system determines whether a specific data packet needs to be sent when the channel of the unlicensed frequency band is used, and the packet format of the specific data packet is a packet format supported by the second communication system;
  • the specific data packet is sent on the channel of the unlicensed frequency band; the specific data packet includes identifier information, and the identifier information is used to enable The second network element device of the first communication system identifies that the specific data packet to which the identifier information is added is sent by the network element device of the first communication system.
  • the second network element device of the first communication system can identify the added identification information, because the specific data packet includes the identification information, so that the specific data packet is different from the data packet sent by the network element device of the second communication system.
  • the specific data message is sent by the network element device of the first communication system.
  • the first communication system is a licensed auxiliary access LAA communication system
  • the second communication system is a wireless fidelity Wi-Fi communication system
  • the identification information is any one of the first preset sequence to the third preset sequence or any combination thereof;
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data message;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the identification information may be in the above multiple situations, so that the manner of adding the identification information is more flexible, and the manner of adding the identification information may be determined according to the actual situation, which is convenient for processing; and, according to the above content, the first preset sequence to the first The positions in which the three preset sequences are filled are obtained by rationally utilizing the regions in the specific data packet. Therefore, the addition of the identifier information does not need to change the original specific data packet, and the applicability is strong.
  • the partial region of the preamble is a partial region in the short training sequence t i region and/or a partial region in the guard interval GI region.
  • An embodiment of the present invention provides a method for identifying a communication system, where the method includes:
  • the second network element device of the first communication system determines that the channel of the unlicensed band needs to be used, the data message transmitted on the channel of the unlicensed band is intercepted;
  • the identifier information is used to enable the second network element device of the first communication system to identify that the data packet is sent by the network element device of the first communication system.
  • the network element device of the first communication system can accurately identify the same system network or the different system networking by determining whether the data message includes the identification information, thereby effectively preventing the network element device of the first communication system from being sent.
  • the data packet is mistaken for the problem transmitted by the network element device of the second communication system, resulting in the incorrect use of the corresponding threshold value in the hybrid networking mode.
  • the first communication system is a LAA communication system
  • the second communication system is a Wi-Fi communication system
  • the second network element device determines whether the data packet includes the identifier information, including:
  • the second network element device determines that at least one of the first preset sequence to the third preset sequence exists in the data packet, determining that the data packet includes the identifier information
  • the first preset sequence is content that is filled in at least one reserved bit of the PLCP header of the specific data message
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • determining whether the data packet contains the identification information by determining at least one of the first preset sequence to the third preset sequence in the data packet, so that the identifier information can be determined by using multiple situations.
  • the method for judging the identification information is more flexible, and the judgment result is more accurate.
  • the positions where the first preset sequence to the third preset sequence are filled are obtained by reasonably utilizing the area in the data packet. Therefore, the addition of the identification information does not need to change the original data message, and the applicability is strong.
  • the at least one region is a partial region in the t i region and/or a partial region in the GI region.
  • the method further includes: the second network element device determining, received on a channel of the unlicensed frequency band After the energy value is less than the first threshold, determining that the channel of the unlicensed band is in an idle state; or
  • the method further includes: determining, by the first network element device, that the energy value received on the channel of the unlicensed frequency band is smaller than After the second threshold, it is determined that the channel of the unlicensed band is in an idle state.
  • the thresholds of the unlicensed band are determined to be idle according to the thresholds corresponding to the system networking and the different system networking respectively.
  • the heterogeneous system networking is accurately identified by judging the identification information. Therefore, it is possible to accurately determine whether the channel has an idle state according to the corresponding threshold value, thereby effectively performing backoff or occupying the channel.
  • a network element device where the network element device includes:
  • a processing module configured to determine whether a specific data packet needs to be sent when the channel of the unlicensed frequency band is used in the first communication system, where the packet format of the specific data packet is a packet format supported by the second communication system;
  • a sending module configured to send a specific data packet on a channel of the unlicensed frequency band after the processing module determines that the specific data packet needs to be sent; the specific data packet includes identifier information, and the identifier information And the specific data packet used by the second network element device of the first communication system to identify the added identification information is sent by the network element device of the first communication system.
  • the first communication system is a licensed auxiliary access LAA communication system
  • the second communication system is a wireless fidelity Wi-Fi communication system
  • the identification information is any one of the first preset sequence to the third preset sequence or any combination thereof;
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data message;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the at least one region is a partial region in the t i region and/or a partial region in the GI region.
  • a receiving module configured to: after the channel of the unlicensed band is used in the first communication system, listen to the data packet transmitted on the channel of the unlicensed band;
  • a processing module configured to determine, after the packet format of the data packet is a packet format supported by the second communication system, determining whether the data packet includes the identifier information, and if yes, determining that the data packet is And sending, by the network element device of the first communication system, the data message is sent by the network element device of the second communication system;
  • the identification information is used to enable the second network element device of the first communication system to identify the data
  • the message is sent by the network element device of the first communication system.
  • the first communication system is a LAA communication system
  • the second communication system is a Wi-Fi communication system
  • the processing module is specifically configured to:
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data packet;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • the processing module is further configured to:
  • the communication system to be tested After determining that the communication system to be tested is the first communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a first threshold, determining that the channel of the unlicensed frequency band is in an idle state; or,
  • the communication system to be tested is the second communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a second threshold, determining that the channel of the unlicensed frequency band is in an idle state .
  • a processor configured to determine whether a specific data packet needs to be sent when the channel of the unlicensed frequency band is used in the first communication system, where the packet format of the specific data packet is a packet format supported by the second communication system;
  • a transceiver configured to send, after the processor determines that the specific data packet needs to be sent, a specific data packet on a channel of the unlicensed frequency band; the specific data packet includes identifier information, where the identifier information
  • the second network element device of the first communication system is configured to identify the added identification information.
  • the specific data message is sent by the network element device of the first communication system.
  • the first communication system is a licensed auxiliary access LAA communication system
  • the second communication system is a wireless fidelity Wi-Fi communication system
  • the identification information is any one of the first preset sequence to the third preset sequence or any combination thereof;
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data message;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • a transceiver configured to detect a data message transmitted on a channel of the unlicensed frequency band after the channel of the unlicensed frequency band needs to be used in the first communication system
  • the processor is configured to determine whether the packet format of the data packet is a packet format supported by the second communication system, and determine whether the data packet includes the identifier information, and if yes, determine that the data packet is And sending, by the network element device of the first communication system, the data message is sent by the network element device of the second communication system;
  • the identifier information is used to enable the second network element device of the first communication system to identify that the data packet is sent by the network element device of the first communication system.
  • the first communication system is a LAA communication system
  • the second communication system is a Wi-Fi communication system
  • the processor is specifically configured to:
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data packet;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • the processor is further configured to:
  • the communication system to be tested After determining that the communication system to be tested is the first communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a first threshold, determining that the channel of the unlicensed frequency band is in an idle state; or,
  • the communication system to be tested is the second communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a second threshold, determining that the channel of the unlicensed frequency band is in an idle state .
  • the first network element device of the first communication system uses the channel of the unlicensed frequency band, it is determined whether a specific data packet needs to be sent, and the data format of the specific data packet is the data format corresponding to the second communication system. After the first network element device determines that the specific data packet needs to be sent, the specific data packet is sent on the channel of the unlicensed frequency band.
  • the specific data packet includes the identification information, so that the specific data packet is different from the data packet sent by the network element device of the second communication system, and the second network element device of the first communication system can identify the data packet.
  • the specific data message to which the identification information is added is sent by the network element device of the first communication system.
  • the second network element device of the first communication system determines that the channel of the unlicensed band needs to be used, and then listens to the data packet transmitted on the channel of the unlicensed band; the second network element device determines the data packet.
  • the packet format is the packet format supported by the second communication system, it is determined whether the data packet includes the identifier information, and if yes, the data packet is determined to be sent by the network element device of the first communication system, and the same system is Networking, otherwise, it is determined that the data packet is sent by the network element device of the second communication system, and the system is a different system networking.
  • the network element device of the first communication system can accurately identify the same system networking or different system networking by determining whether the data packet includes the identification information, so as to facilitate subsequent networking and different systems according to the same system.
  • the characteristics of the system networking and the corresponding operations are performed.
  • FIG. 1 is a schematic flowchart of a method for sending a data packet according to Embodiment 1 of the present invention
  • FIG. 2a is a schematic diagram of a reserved bit position distribution of a specific data packet according to an embodiment of the present invention.
  • 2b is a schematic diagram of padding of reserved bits in an embodiment of the present invention.
  • 2c is a schematic diagram of a PLCP Preamble of a specific data packet according to an embodiment of the present invention
  • 2d is a schematic diagram of filling of m t i regions in an embodiment of the present invention.
  • 2e is a schematic diagram of filling of a GI area according to an embodiment of the present invention.
  • 2f is a schematic diagram of a PSDU of a specific data packet according to an embodiment of the present invention.
  • 2g is a schematic diagram of a PSDU after adding an SDU according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for identifying a communication system according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a network element device according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of a network element device according to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic structural diagram of a network element device according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic structural diagram of a network element device according to Embodiment 6 of the present invention.
  • the unlicensed spectrum has no constraints on the use of the wireless communication system and the operator, that is, multiple operators having multiple communication systems want to occupy the same spectrum, in order to realize the use of the spectrum by different wireless communication systems on the unlicensed spectrum.
  • Fairness, in some areas, wireless communication devices need to follow specific regulatory rules when used on unlicensed spectrum, such as the Listen Before Talk (LBT) rule.
  • LBT Listen Before Talk
  • the network element device of the wireless communication needs to use the LBT rule when occupying the unlicensed spectrum communication, that is, the network element device first monitors whether the channel is idle or available before using the channel, and can use the unlicensed spectrum resource if the channel is available. Used for data transmission.
  • the network element device of the Wi-Fi communication system has different threshold values according to the networking modes of Wi-Fi and Wi-Fi networking, Wi-Fi and LAA hybrid networking, and thus The problem of unfair channel preemption and mutual interference between the two; therefore, in order to avoid this problem, a Wi-Fi signal can be added to the existing LAA transmission signal (for example, a Wi-Fi preamble Preamble is added)
  • the signal, etc. makes a reservation for the channel, so that the network element device of the Wi-Fi communication system generates a backoff after receiving the reservation information.
  • the network element device of the LAA communication system is different in the networking mode of the LAA and LAA networking, LAA and Wi-Fi hybrid networking, and is added in the LAA sending signal.
  • the same reservation signal as in the Wi-Fi transmission signal the LAA communication system receiving network element device will determine the signal to be sent by the Wi-Fi device, thereby erroneously using the mixed networking mode of LAA and Wi-Fi. Corresponding threshold.
  • an embodiment of the present invention provides a method for sending a data packet, which can enable LAA to pass. After the network element device of the signaling system sends the data packet with the added Wi-Fi signal, the network element device of the LAA communication system that receives the data packet can identify that the data packet is sent by the network element device of the LAA communication system.
  • the data packet sending method in the embodiment of the present invention can be used in various wireless communication systems, especially for an LTE communication system that permits spectrum assisted access, that is, a LAA-LTE communication system.
  • the LTE communication system that grants spectrum-assisted access refers to an LTE communication system that aggregates the licensed spectrum and the unlicensed spectrum through CA or non-CA.
  • the current mainstream deployment scenario is a scenario in which the licensed spectrum and the unlicensed spectrum are aggregated by the CA, that is, the carrier included in the licensed spectrum or the licensed spectrum or the cell working on the licensed spectrum is used as the primary serving cell, and the license-free spectrum will be used.
  • the carrier included in the unlicensed spectrum or the cell working on the unlicensed spectrum serves as the secondary serving cell; the primary serving cell and the secondary serving cell may be deployed in a common station or non-co-located, and there is an ideal or non-communication between the two serving cells.
  • Other deployment scenarios include a scenario where the license-free spectrum is used independently (Standalone), that is, the scenario where the license-free operation is performed as an independent carrier.
  • the serving cell on the unlicensed spectrum can directly provide independent access functions, and does not need to work through the license. Auxiliary of the cell on the spectrum.
  • FIG. 1 is a schematic flowchart of a method for sending a data packet according to Embodiment 1 of the present invention. As shown in FIG. 1 , the method includes:
  • Step 101 The first network element device of the first communication system determines whether a specific data packet needs to be sent when the channel of the unlicensed frequency band is used, and the packet format of the specific data packet is a packet supported by the second communication system. format;
  • Step 102 After determining that the specific data packet needs to be sent, the first network element device sends a specific data packet on the channel of the unlicensed frequency band; the specific data packet includes identifier information, and the identifier information And the specific data packet used by the second network element device of the first communication system to identify the added identification information is sent by the network element device of the first communication system.
  • the specific data packet is distinguished from the data packet sent by the network element device of the second communication system by adding the identification information to the specific data packet without changing the packet format of the specific data packet. , thereby enabling the second network element device of the first communication system to recognize that A network element device of a communication system sends.
  • the network element device of the Wi-Fi communication system does not need to transmit a specific data message when using the channel of the unlicensed band. If the first communication system is a LAA communication system, the network element device of the LAA communication system needs to send a specific data packet when the channel of the unlicensed band is used, so that the network element device of the Wi-Fi communication system is listening to the After the data message, a backoff occurs. Therefore, when the first network element device of the first communication system uses the channel of the unlicensed frequency band, it is determined whether the specific data message needs to be sent according to the type of the current communication system. For the case where the first communication system is the LAA communication system and the second communication system is the Wi-Fi communication system, the message format of the specific data message is the message format supported by the Wi-Fi communication system.
  • the identifier information may be added to the specific data packet by the first network element device from the physical layer of the specific data packet. Selecting at least one bit from a plurality of reserved bits of a Physical Layer Convergence Procedure (PLCP) header, and filling a first preset sequence in the selected at least one bit; and/or, the first network element device Selecting a partial area from the preamble of the specific data packet, and filling a second preset sequence in the selected partial area; and/or, the first network element device adds a new field to the specific data packet.
  • the domain is filled with a third preset sequence in the newly added field, and the newly added field is located in a Presentation Service Data Unit (PSDU) of the data area of the specific data packet.
  • PSDU Presentation Service Data Unit
  • the partial area selected by the first network element device from the preamble of the specific data packet may be a continuous or discontinuous multiple area segment selected from the preamble, and specifically, may be a short training sequence t i area. Part of the area and/or part of the Guard Interval (GI) area.
  • GI Guard Interval
  • the identification information in the embodiment of the present invention may be any one of the first preset sequence to the third preset sequence, or any combination thereof; wherein the first preset sequence is filled in the specific data packet Content in at least one reserved bit of the PLCP header; the second preset sequence is content filled in a partial region of the preamble of the specific data message; the third preset sequence is filled in the specific The content of the new field field of the PSDU of the data area of the data message.
  • the manner in which the first network element device adds the identifier information to the specific data packet may be any one or any combination of the foregoing multiple manners.
  • the part in the t i area may be filled
  • the area is regarded as a method
  • the partial area in the GI area is regarded as a mode, and the two methods are followed by the manner of filling the reserved bits and the manner of adding the field field in the PSDU. Make any combination.
  • FIG. 2a is a schematic diagram of a reserved bit position distribution of a specific data packet according to an embodiment of the present invention.
  • the PLCP header of the specific data message includes six regions, namely, a rate identifier RATE region (4 bits), a reserved Reserved region region (1 bit), and a length identifier LENGTH region (2).
  • the bit number the parity flag Parity area (1 bit), the tail field Tail (6 bits) for the convolutional code, and the service SERVICE area (16 bits).
  • 10 bits of the PLCP header of the data packet of the current Wi-Fi communication system are in a reserved state, specifically including 1 bit included in the Reserved is the first bit of 10 reserved bits, in the SERVICE
  • the included bits 7 to 15 are respectively the second to tenth of the 10 reserved bits.
  • 10 reserved bits are utilized, and a target bit combination is selected from 10 reserved bits, the target bit combination includes at least one bit, and the target bit is filled with the first preset sequence. combination.
  • all 10 reserved bits can be selected as the target bit combination, and 10 reserved bits are filled according to the bit sequence format from low to high.
  • FIG. 2b is a schematic diagram of the padding of the reserved bits. As shown in FIG. 2b, the 10 reserved bits are respectively filled into the sequence “1101101111”, that is, 1 bit included in the Reserved is filled with “1”, and the SERVICE includes Bits 7 through 15 are filled with "101101111", respectively.
  • n reserved bits (1 ⁇ n ⁇ 10) may be arbitrarily extracted from the 10 reserved bits, and the n reserved bits may be Even Continued, it can also be discontinuous.
  • the data packet sent by the network element device of the LAA communication system can be identified, and the network element device of the Wi-Fi communication system can detect the specific data packet filled in the first preset sequence. Retrieving other information in a specific data message (for example, Preamble, Clear to Send (CTS), etc.) to generate a backoff.
  • CTS Clear to Send
  • T1 area total duration is 3.2us
  • T2 area total duration is 3.2us
  • t 1 to t 10 are 10 repeated sequences, that is, the contents of the t 1 to t 10 regions are exactly the same, so that other networks of the Wi-Fi communication system
  • the meta-device listens to the specific data packet, it can parse the specific data packet and determine that it is sent by the network element device of the Wi-Fi communication system.
  • other network element devices of the Wi-Fi communication system once successfully parsed into the Preamble, determine that the specific data message is sent by the network element device of the Wi-Fi communication system. In this case, repeated transmissions of t 1 to t 10 are not required at all.
  • m ( 1 ⁇ m ⁇ 10) regions can be extracted from the t 1 to t 10 regions on the basis that the network element device that does not affect the Wi-Fi communication system can correctly receive the corresponding Preamble. And replacing the content with a preset sequence, so that the network element device of the LAA communication system can recognize that the specific data message is sent by the network element device of the LAA communication system after receiving the preset sequence.
  • m regions are selected in the region of t i (1 ⁇ i ⁇ 10), and the specific value of m is not limited in the embodiment of the present invention. When m > 1, m regions may be continuous regions or discontinuous regions.
  • the content filled in the selected m t i regions may be m repetitions of the same sequence, that is, the same sequence may be filled in m t i regions, or may be filled in m t i regions.
  • Different sequences, that is, the contents of m t i regions are cascaded and combined into one long sequence.
  • the PLCP Preamble of the specific data packet includes a GI area, and the GI area is an interval between different data blocks to ensure that the receiving device can correctly parse each data block.
  • the PLCP Preamble includes a 1.6us GI area.
  • the embodiment of the present invention can occupy a part of the GI region and fill it into a pre-preparation based on the guaranteed short GI region.
  • the sequence is set such that after receiving the preset sequence, the network element device of the LAA communication system can identify that the specific data message is sent by the network element device of the LAA communication system.
  • FIG. 2e is a schematic diagram of filling of a GI area in an embodiment of the present invention.
  • the 1.6us GI area is divided into three areas GI_1 (400 ns), GI_2 (800 ns) and GI_3 (400 ns), and the GI_2 therein is filled with the sequence "1101111011".
  • the above division and filling manner is only an exemplary description.
  • the starting time and the duration of the GI region that fills the preset sequence are preferably integer multiples of 400 ns, and at least 400 ns of the GI area is reserved.
  • the second preset sequence may be a long sequence of a predetermined sequence of partial regions filled in the t i region and a predetermined sequence of partial regions in the GI region; if the first network element The partial area selected by the device from the preamble of the specific data packet is a partial area in the t i area, and the second preset sequence may refer to a preset sequence of the partial area filled in the t i area; The partial area selected by the first network element device from the preamble of the specific data packet is a partial area in the GI area, and the second preset sequence may be a preset sequence of the partial area filled in the GI area. .
  • FIG. 2f is a schematic diagram of the PSDU of a particular data message.
  • the PSDU area of the specific data message is located behind the PLCP header, and the PSDU is the data part. Therefore, in the embodiment of the present invention, a third preset sequence is filled in the forefront of the PSDU area, thereby After receiving the third preset sequence, the network element device of the LAA communication system can identify that the specific data packet is sent by the network element device of the LAA communication system.
  • FIG. 2g is a schematic diagram of a PSDU after adding an SDU.
  • a Service Data Unit (SDU) filled with the sequence "100110011001...1001" (which may be referred to as a LAA SDU) may be placed at the forefront of the PSDU area.
  • SDU Service Data Unit
  • LAA SDU Service Data Unit
  • the length and placement position of the LAA SDU are not specifically limited, that is, the LAA SDU may also be placed in the middle portion or the tail end of the PSDU region.
  • the specific placement position may be set by a person skilled in the art according to actual conditions, or may be determined by negotiation between the network element devices on both sides of the transceiver.
  • the identification information may be added by using any combination of the foregoing four methods.
  • four methods can be utilized, that is, the identification information is added by filling the first to third preset sequences, and a specific example is:
  • the t 2 and t 6 regions in the Preamble of the specific data message are filled with the sequence "10101010" and the sequence "1111000011110000", respectively, and the second 400 ns in the GI region is filled according to the sequence "1001100110011001". And, the nine reserved bits in the SERVICE area are filled according to the sequence "001111010"; and the LAA SDU is filled with one OFDM symbol in the sequence "0010110100101101" and placed at the forefront of the PSDU.
  • Combination of the second (2) mode and the (1) mode at least one reserved bit in the portion t i (1 ⁇ i ⁇ 10) region + PLCP Preamble region in the PLCP Preamble region;
  • Combination of the third (3) mode and the (1) mode at least one reserved bit in the partial GI area + PLCP Preamble area in the PLCP Preamble area;
  • Combination of the third (3) mode and the (4) mode a new field field of the partial GI area + PSDU in the PLCP Preamble area;
  • Combination of the first (1) mode and the (4) mode at least one reserved bit in the PLCP Preamble area + a new field field of the PSDU;
  • Combination of the second (2) mode, the (3) mode, and the (4) mode at least one reserved bit + PSDU in the partial GI area + PLCP Preamble area in the PLCP Preamble area Field field.
  • the first network element device sends a specific data packet on the channel of the unlicensed frequency band. Specifically, the first network element device sends the specific data packet only in a preset subframe. For example, the first network element device sends a specific data packet only in the first subframe of each frame. At this time, the first network element device can normally send the datagram supported by the first communication system on other subframes. Text. Alternatively, the first network element device sends a specific data message on two or more preset subframes set in advance; or the first network element is configured to send a data message in other preset situations. In the embodiment of the present invention, when the channel of the unlicensed frequency band is used by the first network element device, the timing of sending the specific data packet is not specifically limited.
  • the first network element device of the first communication system uses the channel of the unlicensed frequency band, it is determined whether a specific data packet needs to be sent, and the data format of the specific data packet is the data format corresponding to the second communication system. After the first network element device determines that the specific data packet needs to be sent, the specific data packet is sent on the channel of the unlicensed frequency band.
  • the specific data packet includes the identification information, so that the specific data packet is different from the data packet sent by the network element device of the second communication system, and the second network element device of the first communication system can identify the data packet.
  • the specific data message to which the identification information is added is sent by the network element device of the first communication system.
  • the embodiment of the present invention further provides a method for identifying a communication system, where the network element device listens for data packets transmitted on a channel of an unlicensed frequency band, and determines whether the data packet is adopted. The method for transmitting the above data message is sent, thereby identifying the communication system.
  • the second network element device that receives the data message in the method of transmitting the data message is still used as the execution method in the identification method of the communication system. main body.
  • other network element devices may be used as the execution subject, and the embodiments of the present invention are not specifically limited.
  • FIG. 3 is a schematic flowchart of a method for identifying a communication system according to Embodiment 2 of the present invention. As shown in FIG. 3, the method includes:
  • Step 301 After the second network element device of the first communication system determines that the channel of the unlicensed frequency band is to be used, the second network element device that is in the unlicensed frequency band is configured to listen to the data packet transmitted on the channel of the unlicensed frequency band.
  • Step 302 After determining, by the second network element device, that the packet format of the data packet is a packet format supported by the second communication system, determine whether the data packet includes the identifier information, and if yes, determine the The data packet is sent by the network element device of the first communication system; otherwise, the data packet is determined to be sent by the network element device of the second communication system;
  • the identifier information is used to enable the second network element device of the first communication system to identify that the data packet is sent by the network element device of the first communication system.
  • the first communication system is a LAA communication system
  • the second communication system is a Wi-Fi communication system.
  • the second network element device determines whether the data message includes identification information, including:
  • the second network element device determines that at least one of the first preset sequence to the third preset sequence exists in the data packet, determining that the data packet includes the identifier information; wherein, the first preset The sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data message; the second preset sequence is filled in a partial region of the preamble of the specific data message Content; the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region in the t i region and/or a partial region in the GI region.
  • the second network element device of the first communication system determines that the data packet is sent by the network element device of the first communication system, it may be determined to be the same system networking, and the first threshold is adopted. Determining, as a threshold of the energy value, whether the channel of the unlicensed band is in an idle state; if the second network element device of the first communication system determines that the data message is sent by the network element device of the second communication system, It is determined that the system is a different system, and the second threshold is used as a threshold of the energy value to determine whether the channel of the unlicensed band is in an idle state.
  • the first threshold and the second threshold generally refer to the spatial channel evaluation value, and the sizes of the first threshold and the second threshold may be obtained according to the prior art, and are not specifically described herein.
  • the network element device of the LAA may use the existing SDL technology or related technologies such as LTE interference coordination (such as cell interference coordination, frequency selective scheduling, multi-point coordinated transmission, etc.) for spectrum utilization and The system capacity is improved. If it is determined to be a different system networking, the network element device of the LAA can adopt LBT, cell switch Cell On-Off and other technologies to ensure or improve the performance of the system while avoiding interference to different systems.
  • LTE interference coordination such as cell interference coordination, frequency selective scheduling, multi-point coordinated transmission, etc.
  • the first network element device of the first communication system that is, the LAA communication system
  • the second network element of the first communication system After receiving the device, the device identifies that the specific data packet contains the identifier information, and then determines that it is the same system networking. If the network element device of the second communication system (that is, the Wi-Fi communication system) receives the data packet, the specific data packet can still be parsed, and the specific data packet is misidentified to be sent by the network element device of the Wi-Fi communication system.
  • the determined network in the same system is pseudo-same system networking, and the network element device of the subsequent Wi-Fi communication system uses the threshold corresponding to the system networking to determine whether the channel of the unlicensed band is idle.
  • the network element device of the Wi-Fi communication system performs channel interception in an unlicensed frequency band, whether it is a data packet sent by another network element device of the Wi-Fi communication system, or a network element of the LAA communication system.
  • the data packet sent by the device, the network element device of the Wi-Fi communication system determines that it is the same system networking, and uses the threshold corresponding to the system networking to determine whether the channel of the unlicensed band is in an idle state.
  • the threshold value (generally referred to as the spatial channel evaluation value) corresponding to the same system networking of the Wi-Fi communication system is -82 dBm, and the threshold value corresponding to the different system networking is - 62dBm, therefore, whether it is the same system networking or pseudo-system networking, the network element equipment of the Wi-Fi communication system uses -82dBm as the threshold value, which can effectively generate backoff.
  • the second network element device of the first communication system determines that the channel of the unlicensed band needs to be used, and then listens to the data packet transmitted on the channel of the unlicensed band; the second network element device determines the data packet.
  • the packet format is the packet format supported by the second communication system, it is determined whether the data packet includes the identifier information, and if yes, the data packet is determined to be sent by the network element device of the first communication system, and the same system is Networking, otherwise, it is determined that the data packet is sent by the network element device of the second communication system, and the system is a different system networking.
  • the network element device of the first communication system can accurately identify the same system networking or different system networking by determining whether the data packet includes the identification information.
  • FIG. 4 is a schematic structural diagram of a network element device according to Embodiment 3 of the present invention, which is used to perform the foregoing method for sending a data packet.
  • the network element device 400 includes:
  • the processing module 401 is configured to determine whether a specific data packet needs to be sent when the channel of the unlicensed frequency band is used in the first communication system, and the packet format of the specific data packet is a packet format supported by the second communication system;
  • the sending module 402 is configured to: after the processing module determines that the specific data packet needs to be sent, send a specific data packet on a channel of the unlicensed frequency band; the specific data packet includes identifier information, where the identifier The information is used to enable the second network element device of the first communication system to identify that the specific data packet to which the identification information is added is sent by the network element device of the first communication system.
  • the first communication system is a licensed auxiliary access LAA communication system
  • the second communication system is a wireless fidelity Wi-Fi communication system
  • the identification information is any one of the first preset sequence to the third preset sequence or any combination thereof;
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data message;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • the first network element device of the first communication system uses the channel of the unlicensed frequency band, it is determined whether a specific data packet needs to be sent, and the data format of the specific data packet is the data format corresponding to the second communication system. After the first network element device determines that the specific data packet needs to be sent, the specific data packet is sent on the channel of the unlicensed frequency band.
  • the specific data packet includes the identification information, so that the specific data packet is different from the data packet sent by the network element device of the second communication system, and the second network element device of the first communication system can identify the data packet.
  • the specific data message to which the identification information is added is sent by the network element device of the first communication system.
  • FIG. 5 is a schematic structural diagram of a network element device according to Embodiment 4 of the present invention, which is used to perform the process of identifying the foregoing communication system.
  • the network element device 500 includes:
  • the receiving module 501 is configured to determine, after the channel of the unlicensed frequency band is used in the first communication system, to listen to the data packet transmitted on the channel of the unlicensed frequency band;
  • the processing module 502 is configured to determine, after the packet format of the data packet is a packet format supported by the second communication system, whether the data packet includes the identifier information, and if yes, determine that the data packet is The network element device of the first communication system sends, otherwise, determines that the data packet is sent by the network element device of the second communication system;
  • the identifier information is used to enable the second network element device of the first communication system to identify that the data packet is sent by the network element device of the first communication system.
  • the first communication system is a LAA communication system
  • the second communication system is a Wi-Fi communication system
  • the processing module 502 is specifically configured to:
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data packet;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • processing module 502 is further configured to:
  • the communication system to be tested After determining that the communication system to be tested is the first communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a first threshold, determining that the channel of the unlicensed frequency band is in an idle state; or,
  • the communication system to be tested is the second communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a second threshold, determining that the channel of the unlicensed frequency band is in an idle state .
  • the second network element device of the first communication system determines that the channel of the unlicensed band needs to be used, and then listens to the data packet transmitted on the channel of the unlicensed band; the second network element device determines the data packet.
  • the packet format is the packet format supported by the second communication system, it is determined whether the data packet includes the identifier information, and if yes, the data packet is determined to be sent by the network element device of the first communication system, and the same system is Networking, otherwise, it is determined that the data packet is sent by the network element device of the second communication system, and the system is a different system networking.
  • the network element device of the first communication system can accurately identify the same system networking or different system networking by determining whether the data packet includes the identification information, so as to facilitate subsequent networking and different systems according to the same system. The characteristics of the networking and the corresponding operations are performed.
  • FIG. 6 is a schematic structural diagram of a network element device according to Embodiment 5 of the present invention, which is used to execute a method for sending the foregoing data packet.
  • the network element device 600 includes: a processor. 601, transceiver 602, memory 603;
  • the processor 601 is configured to determine whether a specific data packet needs to be sent when the channel of the unlicensed frequency band is used in the first communication system, and the packet format of the specific data packet is a packet supported by the second communication system. format;
  • the transceiver 602 is configured to: after the processor determines that the specific data packet needs to be sent, send a specific data packet on a channel of the unlicensed frequency band; the specific data packet includes identifier information, where The identification information is used to enable the second network element device of the first communication system to identify that the specific data packet to which the identification information is added is sent by the network element device of the first communication system;
  • the memory 603 can store data used by the processor when performing operations.
  • the memory 603 may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviation: RAM); the memory 603 may also include a non-volatile memory (English: non- Volatile memory), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid -state drive, abbreviated: SSD); the memory 603 may also include a combination of the above types of memories.
  • a volatile memory such as a random access memory (English: random-access memory, abbreviation: RAM)
  • the memory 603 may also include a non-volatile memory (English: non- Volatile memory), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English:
  • the first communication system is a licensed auxiliary access LAA communication system
  • the second communication system is a wireless fidelity Wi-Fi communication system
  • the identification information is any one of the first preset sequence to the third preset sequence or any combination thereof;
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data message;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the processor is responsible for managing the bus architecture and the usual processing.
  • FIG. 7 is a schematic structural diagram of a network element device according to Embodiment 6 of the present invention, which is used to perform a process for identifying the foregoing communication system.
  • the network element device 700 includes: a processor 701. , transceiver 702, memory 703;
  • the transceiver 702 is configured to determine, after the channel of the unlicensed frequency band is used in the first communication system, to listen to the data packet transmitted on the channel of the unlicensed frequency band;
  • the processor 701 is configured to determine, after the packet format of the data packet is a packet format supported by the second communication system, whether the data packet includes the identifier information, and if yes, determine the datagram.
  • the data is sent by the network element device of the first communication system, and the data message is determined to be sent by the network element device of the second communication system; the identifier information is used to make the first communication system
  • the second network element device identifies that the data packet is sent by the network element device of the first communication system;
  • the memory 703 can store data used by the processor when performing operations.
  • the memory 703 may include a volatile memory (English: volatile memory), such as random-access memory (abbreviation: RAM); the memory 703 may also include non- Volatile memory (English: non-volatile memory), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, abbreviated: SSD); the memory 703 may also include a combination of the above types of memory.
  • the first communication system is a LAA communication system
  • the second communication system is a Wi-Fi communication system
  • the processor 701 is specifically configured to:
  • the first preset sequence is content that is filled in at least one reserved bit of the physical layer convergence protocol PLCP header of the specific data packet;
  • the second preset sequence is content that is filled in a partial area of the preamble of the specific data message
  • the third preset sequence is content populated in a new field field of the layer service data unit PSDU of the data area of the specific data message.
  • the partial region is a partial region t i region and / or a partial region GI area.
  • the processor 701 is further configured to:
  • the communication system to be tested After determining that the communication system to be tested is the first communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a first threshold, determining that the channel of the unlicensed frequency band is in an idle state; or,
  • the communication system to be tested is the second communication system, if it is determined that the energy value received on the channel of the unlicensed frequency band is less than a second threshold, determining that the channel of the unlicensed frequency band is in an idle state .
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore will not be further described herein. Said.
  • the bus interface provides an interface.
  • the processor is responsible for managing the bus architecture and the usual processing.
  • the first network element device of the first communication system uses the channel of the unlicensed frequency band, it is determined whether a specific data packet needs to be sent, and the data format of the specific data packet is the second communication.
  • the data format corresponding to the system.
  • the first network element device After determining that the specific data packet needs to be sent, the first network element device sends a specific data packet on the channel of the unlicensed frequency band.
  • the specific data packet includes the identification information, so that the specific data packet is different from the data packet sent by the network element device of the second communication system, and the second network element device of the first communication system can identify the data packet.
  • the specific data message to which the identification information is added is sent by the network element device of the first communication system.
  • the second network element device of the first communication system determines that the channel of the unlicensed band needs to be used, and then listens to the data packet transmitted on the channel of the unlicensed band; the second network element device determines the data packet.
  • the packet format is the packet format supported by the second communication system, it is determined whether the data packet includes the identifier information, and if yes, the data packet is determined to be sent by the network element device of the first communication system, and the same system is Networking, otherwise, it is determined that the data packet is sent by the network element device of the second communication system, and the system is a different system networking.
  • the network element device of the first communication system can accurately identify the same system networking or different system networking by determining whether the data packet includes the identification information, so as to facilitate subsequent networking and different systems according to the same system.
  • the characteristics of the system networking and the corresponding operations are performed.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer usable memory channels (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • the computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine instruction for generating instructions executed by a processor of a computer or other programmable data processing device Used to implement A means of function specified in a flow or a flow and/or a block diagram of a block or blocks.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种数据报文的发送方法、通信系统的识别方法及装置，包括：第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，特定数据报文的数据格式为第二通信系统对应的数据格式；第一网元设备确定需要发送特定数据报文后，在特定数据报文中添加标识信息，并在非授权频段的信道上发送添加标识信息的特定数据报文。本发明实施例中，标识信息被包含在特定数据报文中，从而使得该特定数据报文区别于第二通信系统的网元设备发送的数据报文，以便使第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是由第一通信系统的网元设备所发送。

Description

一种数据报文的发送方法、通信系统的识别方法及装置 技术领域
本发明涉及通信技术领域，尤其涉及一种数据报文的发送方法、通信系统的识别方法及装置。
背景技术
随着移动智能设备的飞速发展，当前的无线用户数量以及不同种类业务对整个无线网络的速率要求越来越高，一方面，可通过技术来提升移动网络性能，另一方面，寻求更多的频谱资源也是提升移动通信性能的另一条通路。因此，利用资源相对丰富的免授权频段来分流无线业务，从而应对高数据量的挑战成为了当前的重要思路。
目前，免许可频谱上使用的主要技术是无线保真(Wireless Fidelity，Wi-Fi)，但是，Wi-Fi通信系统在移动性、安全性、服务质量(Quality of Service，QoS)、以及同时处理多用户调度方面存在缺陷，因此，将长期演进(Long-term Evolution，LTE)通信系统的网元设备应用在免许可频谱成为了主流趋势。
为了使LTE通信系统的网元设备即使工作在免许可频谱上，也能保持在移动性、安全性、服务质量以及同时处理多用户调度方面的优势，一种方法是通过载波聚合(Carrier Aggregation，CA)的方式，使许可频谱和免许可频谱聚合在一起，也就是说，LTE通信系统的设备可以通过CA的方式，将许可频谱作为主成员载波(Primary Component Carrier，PCC)或主小区(Primary Cell，PCell)载波，将免许可频谱作为辅成员载波(Secondary Component Carrier，SCC)或辅小区(Secondary Cell，SCell)载波，此种方式被称作为许可辅助接入(Licensed-Assisted Access，LAA)。
综上，在未来的移动通信场景中，免许可频谱上局部区域会存在多种组网模式，例如同系统组网(Wi-Fi与Wi-Fi组网，LAA与LAA组网)以及异系统组网(LAA与Wi-Fi的混合组网)等。由于在不同的组网模式下，网元设备监 听信道是否空闲或是否可用所依据的门限值是存在差异的。因此，针对于LAA通信系统来说，LAA通信系统的网元设备如何发送数据报文，以使得接收数据报文的其它网元设备能够进行有效识别，进而确定出当前组网模式，以便于采用正确的门限值确定信道是否空闲是目前亟待解决的问题。
发明内容
本申请提供一种数据报文的发送方法、识别待测通信系统的方法及装置，用于实现LAA通信系统的网元设备发送数据报文后，接收数据报文的其它网元设备能够进行有效识别，进而确定出当前组网模式，以便于采用正确的门限值确定信道是否空闲。
本发明实施例提供一种数据报文的发送方法，该方法包括：
第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
所述第一网元设备确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包括标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的。
如此，由于特定数据报文包括标识信息，从而使得该特定数据报文区别于第二通信系统的网元设备发送的数据报文，第一通信系统的第二网元设备能够识别出添加标识信息的特定数据报文是由第一通信系统的网元设备所发送的。
较佳地，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
如此，标识信息可以为以上多种情形，从而使得添加标识信息的方式比较灵活，可根据实际情况来确定添加标识信息的方式，便于处理；且，根据上述内容可知，第一预设序列至第三预设序列被填充的位置均是通过合理利用特定数据报文中的区域而得到的，因此，添加标识信息也无需对原特定数据报文进行改变，适用性较强。
较佳地，所述前导码的部分区域为短培训序列ti区域中的部分区域和/或保护间隔GI区域中的部分区域。
本发明实施例提供一种通信系统的识别方法，该方法包括：
第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
所述第二网元设备确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；
所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的。
如此，第一通信系统的网元设备通过判断数据报文中是否包含标识信息，从而能够准确地识别出同系统组网或异系统组网，有效避免了将第一通信系统的网元设备发送的数据报文误认为第二通信系统的网元设备发送的，而导致错误地使用混合组网模式下对应的门限值的问题。
较佳地，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
所述第二网元设备判断所述数据报文中是否包含标识信息，包括：
所述第二网元设备确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
其中，第一预设序列为填充于所述特定数据报文的PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
如此，通过判断数据报文中是否存在第一预设序列至第三预设序列中的至少一种，确定该数据报文是否为包含标识信息，从而使得标识信息可以通过多种情形判断出来，使得标识信息的判断方式较为灵活，且判断结果较为准确；且，根据上述内容可知，第一预设序列至第三预设序列被填充的位置均是通过合理利用数据报文中的区域而得到的，因此，添加标识信息也无需对原数据报文进行改变，适用性较强。
较佳地，所述至少一个区域为ti区域中的部分区域和/或GI区域中的部分区域。
较佳地，所述第二网元设备确定所述待测通信系统为所述第一通信系统后，还包括：所述第二网元设备确定在所述非授权频段的信道上接收到的能量值小于第一阈值后，确定所述非授权频段的信道处于空闲状态；或，
所述第二网元设备确定所述待测通信系统为所述第二通信系统后，还包括：所述第一网元设备确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，确定所述非授权频段的信道处于空闲状态。
如此，识别出同系统组网和异系统组网后，可以分别根据同系统组网和异系统组网分别对应的门限值，确定非授权频段的信道是否处于空闲状态，由于同系统组网和异系统组网是通过判断标识信息的方式准确识别出来的，因此，后续能够准确地根据相应的门限值来确定信道是否具有空闲状态，从而能够有效地进行退避或占用信道。
本发明实施例提供的一种网元设备，该网元设备包括：
处理模块，用于在第一通信系统下使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
发送模块，用于在所述处理模块确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包含标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的。
较佳地，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述至少一个区域为ti区域中的部分区域和/或GI区域中的部分区域。
本发明实施例提供的另一种网元设备，该网元设备包括：
接收模块，用于确定需要在第一通信系统下使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
处理模块，用于确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；
所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据 报文是所述第一通信系统的网元设备发送的。
较佳地，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
所述处理模块具体用于：
确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
较佳地，所述处理模块还用于：
确定所述待测通信系统为所述第一通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第一阈值，则确定所述非授权频段的信道处于空闲状态；或，
确定所述待测通信系统为所述第二通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，则确定所述非授权频段的信道处于空闲状态。
本发明实施例提供的另一种网元设备，包括：
处理器，用于在第一通信系统下使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
收发器，用于在所述处理器确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包含标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息 的特定数据报文是所述第一通信系统的网元设备发送的。
较佳地，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
本发明实施例提供的另一种网元设备，该网元设备包括：
收发器，用于确定需要在第一通信系统下使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
处理器，用于确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；
所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的。
较佳地，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
所述处理器具体用于：
确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
较佳地，所述处理器还用于：
确定所述待测通信系统为所述第一通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第一阈值，则确定所述非授权频段的信道处于空闲状态；或，
确定所述待测通信系统为所述第二通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，则确定所述非授权频段的信道处于空闲状态。
本发明实施例中，第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，特定数据报文的数据格式为第二通信系统对应的数据格式；第一网元设备确定需要发送特定数据报文后，在所述非授权频段的信道上发送特定数据报文。本发明实施例中，特定数据报文包括标识信息，从而使得该特定数据报文区别于第二通信系统的网元设备发送的数据报文，第一通信系统的第二网元设备能够识别出添加标识信息的特定数据报文是由第一通信系统的网元设备所发送的。
本发明实施例中，第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听非授权频段的信道上传输的数据报文；第二网元设备确定数据报文的报文格式为第二通信系统支持的报文格式后，判断数据报文中是否包含标识信息，若是，则确定数据报文为第一通信系统的网元设备发送的，此时即为同系统组网，否则，确定数据报文为第二通信系统的网元设备发送的，此时即为异系统组网。本发明实施例中，第一通信系统的网元设备通过判断数据报文中是否包含标识信息，从而能够准确地识别出同系统组网或异系统组网，便于后续根据同系统组网和异系统组网的特性，执行相应的操作。
附图说明
为了更清楚地说明本发明实施例技术方案，下面将对实施例和现有技术描述中所需要使用的附图作简单地介绍。
图1为本发明实施例一提供的一种数据报文的发送方法所对应的流程示意图；
图2a为本发明实施例中特定数据报文的预留比特位分布示意图。
图2b为本发明实施例中的预留比特位的填充示意图；
图2c为本发明实施例中特定数据报文的PLCP Preamble示意图；
图2d为本发明实施例中的m个ti区域的填充示意图；
图2e为本发明实施例中的GI区域的填充示意图；
图2f为本发明实施例中的特定数据报文的PSDU示意图；
图2g为本发明实施例中的添加SDU后的PSDU示意图；
图3为本发明实施例二提供的一种通信系统的识别方法所对应的流程示意图；
图4为本发明实施例三提供的一种网元设备的结构示意图；
图5为本发明实施例四提供的一种网元设备的结构示意图；
图6为本发明实施例五提供的一种网元设备的结构示意图；
图7为本发明实施例六提供的一种网元设备的结构示意图。
具体实施方式
下面结合说明书附图对本发明实施例做详细描述。
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，下面所描述的实施例仅仅是本发明的一部分实施例，而非全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用 于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包括。例如包括了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在未来的移动通信场景中，免许可频谱上局部区域会存在多种组网模式，例如现有的同系统组网(Wi-Fi与Wi-Fi组网，LAA与LAA组网)以及异系统组网(LAA与Wi-Fi的混合组网)等。由于免许可频谱上对无线通信系统和运营商使用没有约束，即存在多种通信系统的多个运营商都想要占用相同频谱的情况，为了实现免许可频谱上不同无线通信系统对该频谱使用的公平性，在某些地区，无线通信设备在免许可频谱上使用时需要遵循特定的法规规则，例如先听后说(Listen Before Talk，LBT)规则。具体为，无线通信的网元设备在占用免许可频谱通信时需使用LBT规则，即网元设备在使用信道之前，首先监听信道是否空闲或是否可用，如果信道可用则可以使用该免许可频谱资源用于数据传输。
在不同的组网模式下，网元设备监听信道是否空闲或是否可用所依据的门限值是存在差异的。也就是说，Wi-Fi通信系统的网元设备在Wi-Fi与Wi-Fi组网、Wi-Fi与LAA的混合组网两种组网模式下，所依据的门限值不同，从而会导致信道抢占的不公平、以及两者间的相互干扰等问题；因此为了避免该问题的产生，可在现有的LAA发送信号中添加Wi-Fi信号(例如，添加Wi-Fi的前导码Preamble信号等)对信道进行预约，从而使得Wi-Fi通信系统的网元设备在收到该预约信息后产生退避。同理，LAA通信系统的网元设备在LAA与LAA组网、LAA与Wi-Fi的混合组网两种组网模式下，所依据的门限值也不同，而一旦在LAA发送信号中添加了与Wi-Fi发送信号中一样的预约信号，LAA通信系统接收网元设备将会将该信号确定为Wi-Fi设备所发送的，从而错误地使用LAA与Wi-Fi的混合组网模式下对应的门限值。
基于此，本发明实施例提供一种数据报文的发送方法，能够使得LAA通 信系统的网元设备发送添加Wi-Fi信号的数据报文后，接收数据报文的LAA通信系统的网元设备能够识别出该数据报文为LAA通信系统的网元设备发送的。
本发明实施例中的数据报文发送方法可用于多种无线通信系统，尤其用于许可频谱辅助接入的LTE通信系统，即LAA-LTE通信系统。本发明实施例中，许可频谱辅助接入的LTE通信系统是指将许可频谱和免许可频谱通过CA或者非CA的方式聚合在一起使用的LTE通信系统。其中，目前的主流部署场景是将许可频谱和免许可频谱通过CA聚合在一起使用的场景，即许可频谱或许可频谱包括的载波或工作在许可频谱上的小区作为主服务小区，将免许可频谱或免许可频谱包括的载波或工作在免许可频谱上的小区作为辅服务小区；主服务小区和辅服务小区可以共站部署，也可以是非共站部署，两个服务小区之间有理想或者非理想的回传路径。其它的部署场景还包括免许可频谱独立使用(Standalone)的场景，即免许可作为独立的载波工作的场景，在免许可频谱上的服务小区直接可以提供独立接入功能，不需要通过工作在许可频谱上小区的辅助。
图1为本发明实施例一提供的一种数据报文的发送方法所对应的流程示意图，如图1所示，该方法包括：
步骤101，第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
步骤102，所述第一网元设备确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包括标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的。
本发明实施例在不改变特定数据报文的报文格式的情况下，通过在特定数据报文中添加标识信息，使得特定数据报文区别于第二通信系统的网元设备发送的数据报文，进而使得第一通信系统的第二网元设备能够识别出是第 一通信系统的网元设备发送的。
在步骤101中，若第一通信系统为Wi-Fi通信系统，则Wi-Fi通信系统的网元设备在使用非授权频段的信道时，不需要发送特定数据报文。若第一通信系统为LAA通信系统，则LAA通信系统的网元设备在使用非授权频段的信道时，需要发送特定数据报文，以使Wi-Fi通信系统的网元设备在侦听到该数据报文后，产生退避。因此，第一通信系统的第一网元设备在使用非授权频段的信道时，需要根据当前所在的通信系统的类型，来确定是否需要发送特定数据报文。针对于第一通信系统为LAA通信系统、第二通信系统为Wi-Fi通信系统的情形，特定数据报文的报文格式即为Wi-Fi通信系统支持的报文格式。
在步骤102中，第一网元设备确定需要发送所述特定数据报文后，可通过如下方式在特定数据报文中添加标识信息：第一网元设备从所述特定数据报文的物理层会聚协议(Physical Layer Convergence Procedure，PLCP)头的多个预留比特位中选取至少一个比特位，并在选取的至少一个比特位中填充第一预设序列；和/或，第一网元设备从所述特定数据报文的前导码中选取部分区域，并在选取的部分区域中填充第二预设序列；和/或，第一网元设备在所述特定数据报文中新增一个字段域，并在新增的字段域中填充第三预设序列，所述新增的字段域位于所述特定数据报文的数据区域的层服务数据单元(presentation Service Data Unit，PSDU)中。
其中，第一网元设备从特定数据报文的前导码中选取的部分区域可以为从前导码中选取的连续或不连续的多个区域段，具体来说，可以为短培训序列ti区域中的部分区域和/或保护间隔(Guard Interval，GI)区域中的部分区域。
也就是说，本发明实施例中的标识信息可以为第一预设序列至第三预设序列中的任一种或任意组合；其中，第一预设序列为填充于所述特定数据报文的PLCP头的至少一个预留比特位中的内容；第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；第三预设序列为填充于所述特定 数据报文的数据区域的PSDU的新增字段域中的内容。
也就是说，第一网元设备在特定数据报文中添加标识信息的方式可以为上述多种方式中的任意一种或任意组合。
由于第一网元设备从所述特定数据报文的前导码中选取的部分区域为ti区域中的部分区域和/或GI区域中的部分区域，因此，可将填充ti区域中的部分区域看作一种方式，将填充GI区域中的部分区域看作一种方式，后续再将该两种方式与填充预留比特位的方式、在PSDU中新增字段域的方式等四种方式进行任意组合。
下面分别针对四种方式进行具体介绍。
针对于第(1)种方式
图2a为本发明实施例中特定数据报文的预留比特位分布示意图。如图2a所示，特定数据报文的PLCP头中包括6个区域，分别为速率标识RATE区域(4个比特位)、预留Reserved区域区域(1个比特位)、长度标识LENGTH区域(2个比特位)、奇偶标识Parity区域(1个比特位)、卷积码用的尾域Tail(6个比特位)、业务SERVICE区域(16个比特位)。当前Wi-Fi通信系统的数据报文的PLCP头中有10个比特位处于预留状态，具体包括Reserved中包括的1个比特位为10个预留比特位中的第一比特位，SERVICE中包括的比特位7至比特位15分别为10个预留比特位中的第二至第十比特位。
本发明实施例中对10个预留比特位加以利用，从10个预留比特位中选取目标比特位组合，目标比特位组合包括至少一个比特位，并采用第一预设序列填充目标比特位组合。举例来说，可以将10个预留比特位全部选取，作为目标比特位组合，并将10个预留比特位按照由低位到高位的bitmap格式进行相应序列值的填充。图2b为预留比特位的填充示意图，如图2b所示，将该10个预留比特位分别填充成序列“1101101111”，即Reserved中包括的1个比特位填充“1”，SERVICE中包括的比特位7至比特位15分别填充“101101111”。
需要说明的是，实际在选取目标比特位组合时，可以从10个预留比特位中任意抽取n个预留比特位(1≤n≤10)加以组合，且n个预留比特位可以是连 续的，也可以是不连续的。
通过对LAA通信系统的第一网元设备发送的特定数据报文中的预留比特位进行上述填充，从而使得LAA通信系统的第二网元设备侦听到上述填充第一预设序列的特定数据报文后，能够识别出其为LAA通信系统的网元设备发送的数据报文，也使得Wi-Fi通信系统的网元设备侦听到上述填充第一预设序列的特定数据报文后，识别出特定数据报文中的其它信息(例如，Preamble、发送前先清除(Clear to Send，CTS)等信息)从而产生退避。
针对于第(2)种方式
图2c为本发明实施例中特定数据报文的PLCP Preamble示意图。如图2c所示，特定数据报文的PLCP Preamble中包括短培训序列ti区域(具体为t1至t10等10个区域，总时长为10*0.8＝8us)、GI区域(总时长为2*0.8＝1.6us)、T1区域(总时长为3.2us)、T2区域(总时长为3.2us)。Wi-Fi通信系统的网元设备发送特定数据报文时，t1至t10为10个重复的序列，即t1至t10区域的内容完全一样，以使得Wi-Fi通信系统的其它网元设备侦听到该特定数据报文后，能够解析出该特定数据报文，并确定其为Wi-Fi通信系统的网元设备发送的。而实际上，在某些室内或固定站址的部署场景，Wi-Fi通信系统的其它网元设备一旦成功解析到Preamble，则确定特定数据报文为Wi-Fi通信系统的网元设备发送的，此种情况下，完全不需要t1至t10如此多次的重复发送。因此，本发明实施例中，可以在不影响Wi-Fi通信系统的网元设备能够正确接收到对应Preamble的基础上，从t1至t10区域中抽取m(1≤m<10)个区域，将其中的内容替换成一段预设序列，从而使得LAA通信系统的网元设备接收到该预设序列后，能够识别出该特定数据报文为LAA通信系统的网元设备发送的。
图2d为m个ti区域的填充示意图。如图2d所示，选取m＝4，对应区域分别为t3、t4、t7、t9，将其内容分别采用序列“111011101110…1110”加以填充，即每个区域中都填充“111011101110…1110”。
需要说明的是，对于PLCP Preamble中ti(1≤i≤10)区域中选取m个区域，本发明实施例中对m的具体值不做限制。当m>1时，m个区域可以是连续的区 域，也可以是不连续的区域。
本发明实施例中，在选取的m个ti区域中填充的内容，可以为同一序列的m次重复，即在m个ti区域均填充同一序列，也可以在m个ti区域均填充不同的序列，即将m个ti区域的内容进行级联，组合成一个长的序列。
针对于第(3)种方式
如图2c所示，特定数据报文的PLCP Preamble中包括GI区域，GI区域为不同数据块之间的间隔，用以保证接收设备能够正确的解析出各个数据块。通常情况下，PLCP Preamble中包括1.6us的GI区域。针对于多径效应不明显的场景，特定数据报文完全不需要如此长的保护间隔，因此，本发明实施例可以在保证短GI区域的基础上，占用部分GI区域，将其填充为一段预设序列，从而使得LAA通信系统的网元设备接收到该预设序列后，能够识别出该特定数据报文为LAA通信系统的网元设备发送的。
图2e为本发明实施例中的GI区域的填充示意图。如图2e所示，将1.6us的GI区域划分为三个区域GI_1(400ns)，GI_2(800ns)和GI_3(400ns)，将其中的GI_2使用序列“1101111011…”加以填充。
需要说明的是，上述划分和填充方式仅为一种示例性说明。本发明实施例中，对于选取填充预设序列的GI区域的起始时刻以及持续时长不做具体限制。考虑到Wi-Fi通信系统的GI配置及其作用，本发明实施例中优选起始时刻和持续时长为400ns的整数倍，且至少预留出400ns的GI区域。
针对于第二预设序列，需要说明的是，若第一网元设备从所述特定数据报文的前导码中选取的部分区域为ti区域中的部分区域和GI区域中的部分区域，则第二预设序列可以是指填充在ti区域中的部分区域的一段预设序列和GI区域中的部分区域的一段预设序列级联而成的一长串序列；若第一网元设备从所述特定数据报文的前导码中选取的部分区域为ti区域中的部分区域，则第二预设序列可以是指填充在ti区域中的部分区域的一段预设序列；若第一网元设备从所述特定数据报文的前导码中选取的部分区域为GI区域中的部分区域，则第二预设序列可以是指填充在GI区域中的部分区域的一段预设序列。
针对于第(4)种方式
图2f为特定数据报文的PSDU示意图。如图2e所示，特定数据报文的PSDU区域位于PLCP头之后，PSDU为数据部分，因此，本发明实施例中可将一个填充了第三预设序列的放置于PSDU区域的最前端，从而使得LAA通信系统的网元设备接收到第三预设序列后，能够识别出该特定数据报文为LAA通信系统的网元设备发送的。
图2g为添加SDU后的PSDU示意图。举例来说，可以将一个填充了序列“100110011001…1001”的业务数据单元(Service Data Unit，SDU)(可称其为LAA SDU)放置于PSDU区域的最前端。需要说明的是，本发明实施例中，对于LAA SDU的长度和放置位置不做具体限制，即LAA SDU也可以放置于PSDU区域的中间部分或者尾端。具体放置位置可由本领域技术人员根据实际情况进行设置，或者由收发两侧的网元设备协商确定。
本发明实施例中，还可以采用上述四种方式的任意组合来添加标识信息。例如，可以将四种方式均加以利用，即通过填充第一至第三预设序列来添加标识信息，一个具体示例为：
将特定数据报文的Preamble中的t2和t6区域分别采用序列“1010101010…”以及序列“1111000011110000…”进行填充；且，将GI区域中的第二个400ns按照序列“1001100110011001…”进行填充；且，将SERVICE区域中的9个预留比特位按照序列“001111010”填充；且，将LAA SDU以序列“0010110100101101…”填充满一个OFDM符号后放至PSDU的最前端。
上述示例中将4个可能的区域加以组合利用，实际过程中，也可以是任意的两种或者三种的组合，具体来说可能包括如下几种情形：
任意两种的组合如下：
第(2)种方式和第(3)种方式的组合：PLCP Preamble区域中的部分ti(1≤i≤10)区域+PLCP Preamble区域中的部分GI区域；
第(2)种方式和第(1)种方式的组合：PLCP Preamble区域中的部分ti(1≤i≤10)区域+PLCP Preamble区域中的至少一个预留比特位；
第(2)种方式和第(4)种方式的组合：PLCP Preamble区域中的部分ti(1≤i≤10)区域+PSDU的新增字段域；
第(3)种方式和第(1)种方式的组合：PLCP Preamble区域中的部分GI区域+PLCP Preamble区域中的至少一个预留比特位；
第(3)种方式和第(4)种方式的组合：PLCP Preamble区域中的部分GI区域+PSDU的新增字段域；
第(1)种方式和第(4)种方式的组合：PLCP Preamble区域中的至少一个预留比特位+PSDU的新增字段域；
任意三种的组合如下：
第(2)种方式、第(3)种方式的组合和第(1)种方式的组合：PLCP Preamble区域中的部分ti(1≤i≤10)区域+PLCP Preamble区域中的部分GI区域+PLCP Preamble区域中的至少一个预留比特位；
第(2)种方式、第(3)种方式的组合和第(4)种方式的组合：PLCP Preamble区域中的部分ti(1≤i≤10)区域+PLCP Preamble区域中的部分GI区域+PSDU的新增字段域；
第(2)种方式、第(1)种方式的组合和第(4)种方式的组合：PLCP Preamble域中的部分ti(1≤i≤10)区域+PLCP Preamble区域中的至少一个预留比特位+PSDU的新增字段域；
第(2)种方式、第(3)种方式的组合和第(4)种方式的组合：PLCP Preamble区域中的部分GI区域+PLCP Preamble区域中的至少一个预留比特位+PSDU的新增字段域。
进一步地，在步骤102中，第一网元设备在非授权频段的信道上发送特定数据报文，具体可以为，第一网元设备仅在预先设置的某一子帧上发送特定数据报文，例如，第一网元设备仅在每帧的第一个子帧上发送特定数据报文，此时，第一网元设备可在其它子帧上正常发送第一通信系统所支持的数据报文。或者，第一网元设备在预先设置的两个或两个以上的子帧上发送特定数据报文；又或者，第一网元设置在其它预先设置的情形下发送数据报文。 本发明实施例中，对第一网元设备使用非授权频段的信道时，发送特定数据报文的时机不做具体限定。
本发明实施例中，第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，特定数据报文的数据格式为第二通信系统对应的数据格式；第一网元设备确定需要发送特定数据报文后，在所述非授权频段的信道上发送特定数据报文。本发明实施例中，特定数据报文包括标识信息，从而使得该特定数据报文区别于第二通信系统的网元设备发送的数据报文，第一通信系统的第二网元设备能够识别出添加标识信息的特定数据报文是由第一通信系统的网元设备所发送的。
基于上述数据报文的发送方法，本发明实施例还提供一种通信系统的识别方法，具体为网元设备侦听非授权频段的信道上传输的数据报文，判断数据报文是否是通过采用上述数据报文的发送方法发送的，进而识别出通信系统。
为与上文中数据报文的发送方法相呼应，此处介绍通信系统的识别时，仍以数据报文的发送方法中接收数据报文的第二网元设备作为通信系统的识别方法中的执行主体。但实际上，也可以由其他的网元设备作为执行主体，本发明实施例对比不做具体限定。
图3为本发明实施例二提供的一种通信系统的识别方法所对应的流程示意图，如图3所示，该方法包括：
步骤301，第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
步骤302，所述第二网元设备确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；
所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的。
具体地，第一通信系统为LAA通信系统，第二通信系统为Wi-Fi通信系统；第二网元设备判断所述数据报文中是否包含标识信息，包括：
所述第二网元设备确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
具体地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
本发明实施例中，若第一通信系统的第二网元设备确定所述数据报文为第一通信系统的网元设备发送的，则此时可判断为同系统组网，采用第一阈值作为能量值的门限来确定非授权频段的信道是否处于空闲状态；若第一通信系统的第二网元设备确定所述数据报文为第二通信系统的网元设备发送的，则此时可判断为异系统组网，采用第二阈值作为能量值的门限来确定非授权频段的信道是否处于空闲状态。其中，第一阈值和第二阈值一般是指空间信道评估值，第一阈值和第二阈值的大小可根据现有技术得到，此处不做具体介绍。
进一步地，通过上述方式识别出同系统组网和异系统组网后，还可以分别根据同系统组网和异系统组网的网络特性，采取相应的措施来提升网络性能。例如，若确定为同系统组网，则LAA的网元设备可以采用现有SDL技术或者LTE干扰协调等相关技术(例如小区干扰协调、频选调度、多点协作传输等)进行频谱利用率和系统容量的提升；若确定为异系统组网，则LAA的网元设备可以采用LBT、小区开关Cell On-Off等技术在避免对异系统的干扰的同时确保或提升自身系统性能。
因此，采用上述方法，使得LAA通信系统和其他系统(例如Wi-Fi通信系统)在使用非授权频段时，不仅能够保证系统间的友好共存，而且能够保证LAA同系统共存时，更好地提高频谱使用效率和系统容量。
需要说明的是，第一通信系统(即为LAA通信系统)的第一网元设备采用上述数据报文的发送方法发送添加标识信息的特定数据报文后，第一通信系统的第二网元设备接收到后，识别出特定数据报文中包含标识信息，则可确定为同系统组网。若第二通信系统(即为Wi-Fi通信系统)的网元设备接收到后，仍可解析出特定数据报文，并误判该特定数据报文为Wi-Fi通信系统的网元设备发送的，进而使得确定出的同系统组网为伪同系统组网，后续Wi-Fi通信系统的网元设备会采用同系统组网所对应的门限值来确定非授权频段的信道是否处于空闲状态，也就是说，Wi-Fi通信系统的网元设备进行非授权频段的信道侦听时，不管是Wi-Fi通信系统的其它网元设备发送的数据报文，还是LAA通信系统的网元设备发送的数据报文，该Wi-Fi通信系统的网元设备均会判断为同系统组网，并采用同系统组网所对应的门限值来确定非授权频段的信道是否处于空闲状态。根据现有技术中的内容可知，Wi-Fi通信系统针对同系统组网所对应的门限值(一般是指空间信道评估值)为-82dBm，针对异系统组网所对应的门限值-62dBm，因此，不管是同系统组网，还是伪同系统组网，Wi-Fi通信系统的网元设备都以-82dBm作为门限值，均能够有效地产生退避。
本发明实施例中，第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听非授权频段的信道上传输的数据报文；第二网元设备确定数据报文的报文格式为第二通信系统支持的报文格式后，判断数据报文中是否包含标识信息，若是，则确定数据报文为第一通信系统的网元设备发送的，此时即为同系统组网，否则，确定数据报文为第二通信系统的网元设备发送的，此时即为异系统组网。本发明实施例中，第一通信系统的网元设备通过判断数据报文中是否包含标识信息，从而能够准确地识别出同系统组网或异系统组网。
基于相同构思，图4为本发明实施例三提供的一种网元设备的结构示意图，用于执行以上数据报文的发送方法流程，如图4所示，该网元设备400包括：
处理模块401，用于在第一通信系统下使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
发送模块402，用于在所述处理模块确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包含标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的。
较佳地，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
本发明实施例中，第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，特定数据报文的数据格式为第二通信系统对应的数据格式；第一网元设备确定需要发送特定数据报文后，在所述非授权频段的信道上发送特定数据报文。本发明实施例中，特定数据报文包括标识信息，从而使得该特定数据报文区别于第二通信系统的网元设备发送的数据报文，第一通信系统的第二网元设备能够识别出添加标识信息的特定数据报文是由第一通信系统的网元设备所发送的。
基于相同构思，图5为本发明实施例四提供的一种网元设备的结构示意图，用于执行以上通信系统的识别方法流程，如图5所示，该网元设备500包括：
接收模块501，用于确定需要在第一通信系统下使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
处理模块502，用于确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；
所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的。
较佳地，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
所述处理模块502具体用于：
确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
较佳地，所述处理模块502还用于：
确定所述待测通信系统为所述第一通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第一阈值，则确定所述非授权频段的信道处于空闲状态；或，
确定所述待测通信系统为所述第二通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，则确定所述非授权频段的信道处于空闲状态。
本发明实施例中，第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听非授权频段的信道上传输的数据报文；第二网元设备确定数据报文的报文格式为第二通信系统支持的报文格式后，判断数据报文中是否包含标识信息，若是，则确定数据报文为第一通信系统的网元设备发送的，此时即为同系统组网，否则，确定数据报文为第二通信系统的网元设备发送的，此时即为异系统组网。本发明实施例中，第一通信系统的网元设备通过判断数据报文中是否包含标识信息，从而能够准确识别出同系统组网或异系统组网，便于后续根据同系统组网和异系统组网的特性，执行相应的操作。
基于相同构思，图6为本发明实施例五提供的一种网元设备的结构示意图，用于执行以上数据报文的发送方法流程，如图6所示，该网元设备600包括：处理器601、收发器602、存储器603；
所述处理器601，用于在第一通信系统下使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
所述收发器602，用于在所述处理器确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包含标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的；
所述存储器603可以存储处理器在执行操作时所使用的数据。所述存储器603可以包括易失性存储器(英文：volatile memory)，例如随机存取存储器(英文：random-access memory，缩写：RAM)；存储器603也可以包括非易失性存储器(英文：non-volatile memory)，例如只读存储器(英文：read-only memory，缩写：ROM)，快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文：solid-state drive，缩写：SSD)；存储器603还可以包括上述种类的存储器的组合。
较佳地，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
其中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器负责管理总线架构和通常的处理。
基于相同构思，图7为本发明实施例六提供的一种网元设备的结构示意图，用于执行以上通信系统的识别方法流程，如图7所示，该网元设备700包括：处理器701、收发器702、存储器703；
所述收发器702，用于确定需要在第一通信系统下使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
所述处理器701，用于确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的；
所述存储器703可以存储处理器在执行操作时所使用的数据。所述存储器703可以包括易失性存储器(英文：volatile memory)，例如随机存取存储器(英文：random-access memory，缩写：RAM)；存储器703也可以包括非 易失性存储器(英文：non-volatile memory)，例如只读存储器(英文：read-only memory，缩写：ROM)，快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文：solid-state drive，缩写：SSD)；存储器703还可以包括上述种类的存储器的组合。
较佳地，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
所述处理器701具体用于：
确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
较佳地，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
较佳地，所述处理器701还用于：
确定所述待测通信系统为所述第一通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第一阈值，则确定所述非授权频段的信道处于空闲状态；或，
确定所述待测通信系统为所述第二通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，则确定所述非授权频段的信道处于空闲状态。
其中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描 述。总线接口提供接口。处理器负责管理总线架构和通常的处理。
从上述内容可知：本发明实施例中，第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，特定数据报文的数据格式为第二通信系统对应的数据格式；第一网元设备确定需要发送特定数据报文后，在所述非授权频段的信道上发送特定数据报文。本发明实施例中，特定数据报文包括标识信息，从而使得该特定数据报文区别于第二通信系统的网元设备发送的数据报文，第一通信系统的第二网元设备能够识别出添加标识信息的特定数据报文是由第一通信系统的网元设备所发送的。
本发明实施例中，第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听非授权频段的信道上传输的数据报文；第二网元设备确定数据报文的报文格式为第二通信系统支持的报文格式后，判断数据报文中是否包含标识信息，若是，则确定数据报文为第一通信系统的网元设备发送的，此时即为同系统组网，否则，确定数据报文为第二通信系统的网元设备发送的，此时即为异系统组网。本发明实施例中，第一通信系统的网元设备通过判断数据报文中是否包含标识信息，从而能够准确地识别出同系统组网或异系统组网，便于后续根据同系统组网和异系统组网的特性，执行相应的操作。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储信道(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器指令，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现 在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明范围。这样，倘若本发明的这些修改和变型属于本发明权利要求的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (14)

  1. 一种数据报文的发送方法，其特征在于，该方法包括：
    第一通信系统的第一网元设备在使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
    所述第一网元设备确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包括标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的。
  2. 如权利要求1所述的方法，其特征在于，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
    所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
    第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
    第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
    第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
  3. 如权利要求2所述的方法，其特征在于，所述前导码的部分区域为短培训序列ti区域中的部分区域和/或保护间隔GI区域中的部分区域。
  4. 一种通信系统的识别方法，其特征在于，该方法包括：
    第一通信系统的第二网元设备确定需要使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
    所述第二网元设备确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为 第二通信系统的网元设备发送的；
    所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的。
  5. 如权利要求4所述的方法，其特征在于，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
    所述第二网元设备判断所述数据报文中是否包含标识信息，包括：
    所述第二网元设备确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
    其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
    第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
    第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
  6. 如权利要求5所述的方法，其特征在于，所述前导码的部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
  7. 如权利要求4-6中任一项所述的方法，其特征在于，所述第二网元设备确定所述待测通信系统为所述第一通信系统后，还包括：所述第二网元设备确定在所述非授权频段的信道上接收到的能量值小于第一阈值后，确定所述非授权频段的信道处于空闲状态；或，
    所述第二网元设备确定所述待测通信系统为所述第二通信系统后，还包括：所述第一网元设备确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，确定所述非授权频段的信道处于空闲状态。
  8. 一种网元设备，其特征在于，该网元设备包括：
    处理模块，用于在第一通信系统下使用非授权频段的信道时，确定是否需要发送特定数据报文，所述特定数据报文的报文格式为第二通信系统支持的报文格式；
    发送模块，用于在所述处理模块确定需要发送所述特定数据报文后，在所述非授权频段的信道上发送特定数据报文；所述特定数据报文包含标识信息，所述标识信息用于使所述第一通信系统的第二网元设备识别出添加标识信息的特定数据报文是所述第一通信系统的网元设备发送的。
  9. 如权利要求8所述的网元设备，其特征在于，所述第一通信系统为许可辅助接入LAA通信系统，所述第二通信系统为无线保真Wi-Fi通信系统；
    所述标识信息为第一预设序列至第三预设序列中的任一种或任意组合；
    第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
    第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
    第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
  10. 如权利要求9所述的网元设备，其特征在于，所述至少一个区域为ti区域中的部分区域和/或GI区域中的部分区域。
  11. 一种网元设备，其特征在于，该网元设备包括：
    接收模块，用于确定需要在第一通信系统下使用非授权频段的信道后，侦听所述非授权频段的信道上传输的数据报文；
    处理模块，用于确定所述数据报文的报文格式为第二通信系统支持的报文格式后，判断所述数据报文中是否包含标识信息，若是，则确定所述数据报文为所述第一通信系统的网元设备发送的，否则，确定所述数据报文为第二通信系统的网元设备发送的；
    所述标识信息用于使所述第一通信系统的第二网元设备识别出所述数据报文是所述第一通信系统的网元设备发送的。
  12. 如权利要求11所述的网元设备，其特征在于，所述第一通信系统为LAA通信系统，所述第二通信系统为Wi-Fi通信系统；
    所述处理模块具体用于：
    确定所述数据报文中存在第一预设序列至第三预设序列中的至少一种后，确定所述数据报文中包含标识信息；
    其中，第一预设序列为填充于所述特定数据报文的物理层会聚协议PLCP头的至少一个预留比特位中的内容；
    第二预设序列为填充于所述特定数据报文的前导码的部分区域中的内容；
    第三预设序列为填充于所述特定数据报文的数据区域的层服务数据单元PSDU的新增字段域中的内容。
  13. 如权利要求12所述的网元设备，其特征在于，所述部分区域为ti区域中的部分区域和/或GI区域中的部分区域。
  14. 如权利要求11-13中任一项所述的网元设备，其特征在于，所述处理模块还用于：
    确定所述待测通信系统为所述第一通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第一阈值，则确定所述非授权频段的信道处于空闲状态；或，
    确定所述待测通信系统为所述第二通信系统后，若确定在所述非授权频段的信道上接收到的能量值小于第二阈值后，则确定所述非授权频段的信道处于空闲状态。
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