WO2016155480A1 - 一种非授权资源的传输方法和装置 - Google Patents

一种非授权资源的传输方法和装置 Download PDF

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Publication number
WO2016155480A1
WO2016155480A1 PCT/CN2016/076167 CN2016076167W WO2016155480A1 WO 2016155480 A1 WO2016155480 A1 WO 2016155480A1 CN 2016076167 W CN2016076167 W CN 2016076167W WO 2016155480 A1 WO2016155480 A1 WO 2016155480A1
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WIPO (PCT)
Prior art keywords
resource
unlicensed carrier
indication information
transmission node
base station
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PCT/CN2016/076167
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English (en)
French (fr)
Inventor
杨玲
苟伟
戴博
夏树强
彭佛才
毕峰
李新彩
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中兴通讯股份有限公司
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Publication of WO2016155480A1 publication Critical patent/WO2016155480A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This document relates to, but is not limited to, wireless communication technologies, and in particular, to a method and apparatus for transmitting unlicensed resources.
  • the available bandwidth is large (5GHz, 2.4GHz unlicensed frequency band can be used);
  • M2M Machine-to-Machine
  • V2V Vehicle-to-Vehicle
  • LTE Long Term Evolution
  • LTE Rel-13 Long Term Evolution Rel-13
  • This technology will enable LTE systems to use existing unlicensed carriers, greatly increasing the potential spectrum resources of LTE systems, enabling LTE systems to achieve lower spectrum costs.
  • LTE faces many problems in the use of unlicensed carriers for data transmission.
  • One of the problems is that the user equipment (User Equipment) side participates in the competition of unlicensed carrier resources and how to successfully occupy the unlicensed carrier resources after the competition is successful. Quickly notify you and how to efficiently perform upstream data transmission. In response to this problem, there is currently no specific plan.
  • User Equipment User Equipment
  • the embodiments of the present invention provide a method and an apparatus for transmitting an unlicensed resource.
  • the transmitting node that participates in the unlicensed carrier resource competition and competes successfully can quickly notify the other transmitting node of the information occupying the unlicensed carrier resource.
  • a method for transmitting an unlicensed resource comprising:
  • a method for transmitting unauthorized resources including:
  • the first transmitting node performs idle channel assessment CCA detection on the designated unlicensed carrier resource
  • the first transmitting node When detecting that the unlicensed carrier resource is idle, the first transmitting node sends the indication information on the common resource or the designated resource, or sends the indication information and performs a data transmission.
  • the indication information is used to notify that the unlicensed carrier resource is occupied.
  • the common resource is located on the unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is one complete orthogonal frequency division multiplexing OFDM symbol.
  • the public resource includes any of the following resources in the time domain:
  • the common resource includes any of the following resources in the frequency domain:
  • a frequency domain resource composed of a plurality of subcarriers.
  • the specified resource is located on the unlicensed carrier resource, after performing CCA successfully.
  • the first OFDM symbol starts from the end of the current subframe, or the first subframe after the subframe in which the CCA is located.
  • the designated resource is a physical uplink shared channel PUSCH resource.
  • the indication information is further used by the second transmitting node to determine whether the second transmission node can use the unlicensed carrier resource;
  • the first transmission node includes a first terminal
  • the second transmission node includes one or more of the following: a first base station to which the first terminal belongs, and a neighboring base station of the first base station, performed on the designated unlicensed carrier resource Other terminals that the CCA detects but does not compete for the unlicensed carrier resources;
  • the indication information includes any of the following information: a channel sounding reference signal SRS, a primary and secondary synchronization sequence PSS/SSS, and a preamble sequence Preamble.
  • the indication information includes one or more of the following identifiers: a cell identifier, an operator identifier, and an intra-frequency reuse indication identifier.
  • the indication information is obtained by a base sequence obtained by the following method:
  • u denotes the sequence group number, u ⁇ ⁇ 0, 1, ..., N-1 ⁇ , N is the number of packets, v is the base sequence number in the group, and the sequence group number u in the slot n s is given by get:
  • u (f gh (n s )+f ss ) modN, where f gh (n s ) is a group jump pattern and f ss is a sequence shift pattern;
  • the f gh (n s ) is obtained by:
  • c is a pseudo-random sequence
  • the initialization value of the pseudo-random sequence is obtained by: among them For the cell identification; Round down;
  • the f ss is obtained by the following method:
  • ⁇ ss is the operator identifier
  • ⁇ ss ⁇ 0,1,...,m ⁇
  • m is the number of operators
  • the first transmitting node sends the indication information on the device D2D resource on the device on the authorized carrier.
  • the location where the CCA is performed includes any of the following locations: a start position of the subframe, an end position of the subframe, and a configured location.
  • a transmission device for an unlicensed resource which is disposed at the first transmission node, and includes:
  • a first detecting module configured to perform a clear channel assessment CCA detection on the designated unlicensed carrier resource
  • the sending module is configured to: when the first detecting module detects that the unlicensed carrier resource is idle, send the indication information on the common resource or the designated resource, or send the indication information and perform a data transmission.
  • the indication information is used to notify that the unlicensed carrier resource is occupied.
  • the common resource is located on the unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is one complete orthogonal frequency division multiplexing OFDM symbol;
  • the specified resource is located on the unlicensed carrier resource, starting from the first OFDM symbol after the success of the CCA to the end of the current subframe, or the first subframe after the subframe where the CCA is located.
  • the indication information is further used by the second transmitting node to determine whether the second transmission node can use the unlicensed carrier resource;
  • the first transmission node includes a first terminal
  • the second transmission node includes one or more of the following: a first base station to which the first terminal belongs, and a neighboring base station of the first base station, performed on the designated unlicensed carrier resource
  • the CCA detects but does not compete with other terminals of the unlicensed carrier resource;
  • the indication information includes any of the following information: a channel sounding reference signal SRS, a primary and secondary synchronization sequence PSS/SSS, and a preamble sequence Preamble.
  • the indication information includes one or more of the following identifiers: a cell identifier, an operator identifier, and an intra-frequency reuse indication identifier.
  • the device further includes:
  • the indication information calculation module is configured to obtain the indication information by using a base sequence, and the indication information calculation module calculates the base sequence by using the following manner
  • u denotes the sequence group number, u ⁇ ⁇ 0, 1, ..., N-1 ⁇
  • N is the number of packets
  • v is the base sequence number in the group
  • the sequence group number u in the slot n s is given by get:
  • u (f gh (n s )+f ss ) modN, where f gh (n s ) is a group jump pattern and f ss is a sequence shift pattern;
  • the f gh (n s ) is obtained by:
  • c is a pseudo-random sequence
  • the initialization value of the pseudo-random sequence is obtained by: among them For the cell identification; Round down;
  • the f ss is obtained by the following method:
  • ⁇ ss is the operator identifier
  • ⁇ ss ⁇ 0,1,...,m ⁇
  • m is the number of operators
  • the sending module is further configured to send the indication information on the device D2D resource by the device on the authorized carrier.
  • the location where the first detection module performs CCA includes any of the following locations: a start position of the subframe, an end position of the subframe, and a configured location.
  • the embodiment of the invention further provides a method and a device for transmitting an unlicensed resource, which can multiplex the unlicensed carrier resources that are contending for data transmission according to the information sent by the successfully transmitted transmission node.
  • a method for transmitting unauthorized resources including:
  • the second transit node performs detection on a common resource or a designated resource
  • the second transmission node When detecting the indication information sent by the first transmission node, the second transmission node determines, according to the content of the indication information, whether the second transmission node can compete with the first transmission node. Unlicensed carrier resources for data transmission.
  • the common resource is located on the unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is one complete orthogonal frequency division multiplexing OFDM symbol;
  • the designated resource is a physical uplink shared channel PUSCH resource located on the unlicensed carrier resource.
  • the first transit node includes a first terminal
  • the second transmission node includes a first base station to which the first terminal belongs;
  • Determining, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission including:
  • the first base station receives the indication information, determines that the first transmission node competes for the unlicensed carrier resource successfully, and can use the unlicensed carrier resource to perform data transmission;
  • the first base station Receiving, by the first base station, the indication information, where the indication information includes an intra-frequency reuse indication identifier, where the first base station determines that the unlicensed carrier resource that the first transmission node contends can use to perform data. And transmitting, the first base station broadcasts a notification to the neighboring base station of the operator to use the unlicensed carrier resource, and after the resource negotiation, the first base station and the terminal under the neighboring base station of the same operator are in the Data transmission is performed by multiplexing on the unlicensed carrier resources.
  • the first transit node includes a first terminal
  • the second transmission node includes a neighboring base station of the first base station to which the first terminal belongs;
  • Determining, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission including:
  • the neighboring base station receives the indication information, determines that the operator identifier in the indication information is the same as itself, and the indication information includes an intra-frequency reuse indication identifier, and determines that the first transmission node can be used. Competing unlicensed carrier resources for data transmission; the neighboring base station performs resource negotiation with other base stations under the same carrier, and after performing resource negotiation, with other base stations under the same operator on the unlicensed carrier resources Data transmission by multiplexing.
  • the first transit node includes a first terminal
  • the second transmission node includes a second terminal that performs CCA detection on the unlicensed carrier resource but does not compete for unlicensed carrier resources;
  • Determining, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission including:
  • the second terminal determines that the cell identifier in the indication information is the same as its own cell identifier, it is determined that the unlicensed carrier resource that the first transmission node contends can be multiplexed, and the unlicensed carrier resource is passed on the unlicensed carrier resource. Multiplexing for data transmission; or,
  • the second terminal determines that the cell identifier in the indication information is different from its own cell identifier, but the operator identifier is the same as its own operator identifier, and the indication information includes the same frequency reuse indication identifier, And multiplexing the unlicensed carrier resources that the first transmission node contends, and performing data transmission on the unlicensed carrier resources by using a multiplexing manner.
  • the method further includes: when the second transmission node cannot correctly parse the indication information, discarding the blind detection on the common resource or the designated resource, only the channel occupation period of the unlicensed carrier Perform CCA detection in real time; or discard CCA detection during the channel occupation period of the unlicensed carrier.
  • the second terminal performs data transmission by using a multiplexing manner on the unlicensed carrier resource, including:
  • the second terminal performs data transmission according to pre-scheduling information in the first complete OFDM symbol or the first subframe position after the common resource or the designated resource.
  • the performing data transmission by using the multiplexing manner on the unlicensed carrier resource includes: according to the resource location indicated in the pre-scheduling information, or the resource location negotiated by the terminal according to the data transmission through the multiplexing manner. And performing data transmission by multiplexing on the unlicensed carrier resource.
  • a transmission device for an unlicensed resource, configured in the second transmission node, includes:
  • a second detecting module configured to perform detection on a common resource or a specified resource
  • a transmission module configured to determine, according to the content of the indication information, whether the second transmission node can compete with the first transmission node, when the second detection module detects the indication information sent by the first transmission node Unlicensed carrier resources for data transmission.
  • the common resource is located on the unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is one complete orthogonal frequency division multiplexing OFDM symbol;
  • the designated resource is a physical uplink shared channel PUSCH resource located on the unlicensed carrier resource.
  • the first transit node includes a first terminal
  • the second transmission node includes a first base station to which the first terminal belongs;
  • the transmitting module determines, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission, including:
  • the transmitting module determines that the second detecting module receives the indication information, determines that the first transmitting node competes for the unlicensed carrier resource successfully, and can use the unlicensed carrier resource to perform data transmission; or
  • the transmitting module determines that the second detection module receives the indication information and resolves that the indication information includes an intra-frequency reuse indication identifier, and determines that the unlicensed carrier resource that can be used by the first transmission node is used.
  • the transmission module broadcasts a notification to the neighboring base station of the same carrier to use the unlicensed carrier resource, and after performing resource negotiation, the terminal under the neighboring base station of the same operator is in the unlicensed carrier Data is transmitted by multiplexing.
  • the first transit node includes a first terminal
  • the second transmission node includes a neighboring base station of the first base station to which the first terminal belongs;
  • the transmitting module determines, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission, including:
  • the transmission module determines that the operator identifier in the indication information received by the second detection module is the same as itself, and the indication information includes an intra-frequency reuse indication identifier, and determines that the first transmission node can be used to compete.
  • the unlicensed carrier resources are forwarded to the data transmission; the transmission module performs resource negotiation with other base stations under the same carrier, and after the resource negotiation, the same carrier and the same carrier
  • the base station performs data transmission by multiplexing on the unlicensed carrier resources.
  • the first transit node includes a first terminal
  • the second transmission node includes other terminals that perform CCA detection on the unlicensed carrier resource but do not contend to the unlicensed carrier resource;
  • the detecting, by the second detecting module, on the common resource or the specified resource includes: the second detecting module performs blind detection on the common resource or the designated resource, and receives the indication information, and receives the indication information Analyze;
  • the transmitting module determines, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission, including:
  • the transmission module determines that the cell identifier in the indication information is different from its own cell identifier, but the operator identifier is the same as its own operator identifier, and the indication information includes the same frequency reuse indication identifier, And using the unlicensed carrier resources that the first transmission node contends, and performing data transmission on the unlicensed carrier resources by using a multiplexing manner.
  • the second detecting module is further configured to discard the blind detection on the common resource or the designated resource when the indication information cannot be correctly parsed, and perform CCA only in real time during the channel occupation period of the unlicensed carrier. Detecting; or discarding CCA detection during the channel occupation period of the unlicensed carrier.
  • the transmitting module performs data transmission by using a multiplexing manner on the unlicensed carrier resource, including:
  • the transmitting module performs data transmission according to pre-scheduling information in a first complete OFDM symbol or a first subframe position after a common resource or a specified resource.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the above method.
  • the embodiment of the invention provides a transmission method and device on an unlicensed resource, where the UE is not authorized.
  • the spectrum assists the base station to preempt the unlicensed carrier, it promptly and promptly informs the neighboring base station and/or the neighboring base station and whether the unlicensed carrier resources of the UE that is competing but not competing successfully are available.
  • the same cell and/or the UE under the same carrier can be frequency-division multiplexed, which greatly improves the utilization of the unlicensed carrier resources.
  • the base station may be helped to obtain a more accurate channel condition and improve the quality of the communication.
  • the base station can perform detection on the designated resources, further reducing the power consumption of the base station and reducing the time for blind detection, and greatly improving the working efficiency of the base station.
  • Embodiment 1 is a flow chart of Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural diagram of a device according to Embodiment 2 of the present invention.
  • Embodiment 3 is a flowchart of Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a device according to Embodiment 4 of the present invention.
  • 5 is an overall flowchart of a UE assisting a base station to compete for an unlicensed carrier and data transmission in Application Example 1;
  • 6a-b are schematic diagrams showing a time-frequency division structure of a common resource in Application Example 2;
  • 7a-b are schematic diagrams showing the structure of a resource specified in Application Example 3;
  • FIG. 8 is a schematic diagram of a specific process of transmitting a SRS signal on a common resource by a UE that successfully competes in Application Example 4;
  • FIG. 9 is a schematic diagram of implementing the UE to notify other nodes by using the D2D mechanism in Application Example 5.
  • This embodiment describes a process performed by a first transmission node in a method for transmitting an unlicensed resource. As shown in FIG. 1, the method includes steps S110-S120:
  • Step S110 The first transit node performs Clear Channel Assessment (CSA) detection on the designated unlicensed carrier resource.
  • CSA Clear Channel Assessment
  • the first transmission node includes a first terminal.
  • Step S120 When detecting that the unlicensed carrier resource is idle, the first transmitting node sends the indication information on the common resource or the designated resource, or sends the indication information and performs a data transmission.
  • the indication information is used to notify that the unlicensed carrier resource is occupied.
  • the unlicensed carrier resource is occupied, meaning that the first transit node has contend or has acquired the unlicensed carrier resource.
  • the indication information may carry other content, such as an indication identifier that can be multiplexed, and, for example, an identifier of a cell to which the first transmission node belongs, and/or an operator identifier.
  • the indication information may also be an empty message that does not carry content.
  • the behavior of transmitting the indication information on the public resource or the designated resource itself may be used to notify the first transmitting node to compete for or have acquired the unlicensed carrier resource.
  • the common resource is located on the unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is a complete OFDM (Orthogonal Frequency Division Multiplexing) symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the common resource includes any one of the following resources in the time domain: performing a first complete OFDM symbol after the CCA is successfully performed; starting from the first complete OFDM symbol to performing the CCA after the CCA is successfully executed The OFDM symbol in the frame boundary; the OFDM symbol from the first complete OFDM symbol to the next subframe boundary after the CCA success is performed.
  • the common resource includes any one of the following resources in the frequency domain: an entire frequency domain resource; A resource occupying a predetermined bandwidth in a frequency domain; a frequency domain resource composed of a plurality of subcarriers.
  • the specified resource is located on the unlicensed carrier resource, starting from the first OFDM symbol after the success of the CCA to the end of the current subframe, or the first subframe after the subframe where the CCA is located.
  • the designated resource is a physical uplink shared channel PUSCH resource.
  • the location where the CCA is performed includes any of the following locations: a start position of the subframe, an end position of the subframe, and a configured location.
  • the location of the configuration may be configured by the base station, or specified by the protocol; the location where the CCA is performed may also be the location agreed by the base station and the terminal.
  • the indication information is further used by the second transmission node to determine whether the second transmission node can use the unlicensed carrier resource, including any of the following information: SRS (Sounding Reference Signal) Sounding reference signal), primary and secondary synchronization sequence PSS/SSS (Primary Synchronization Signal, Secondary Synchronization Signal), Preamble (preamble sequence);
  • SRS Sounding Reference Signal
  • PSS/SSS Primary Synchronization Signal, Secondary Synchronization Signal
  • Preamble preamble sequence
  • the second transmission node includes one or more of the following: a first base station to which the first terminal belongs, and a neighboring base station of the first base station, performed on the designated unlicensed carrier resource Other terminals that the CCA detects but does not compete for unlicensed carrier resources.
  • the indication information may include the following identifier: a cell identifier.
  • the indication information further includes the following identifier: an operator identifier and/or an intra-frequency reuse indication identifier.
  • the above SRS, PSS/SSS or Preamble may be based on the base sequence Obtained, where u denotes the sequence group number, u ⁇ 0,1,...,N-1 ⁇ , N is the number of packets, v is the base sequence number in the group, and the sequence group number u in the slot n s is The following formula gets:
  • u (f gh (n s )+f ss ) modN, where f gh (n s ) is a group jump pattern and f ss is a sequence shift pattern;
  • the f gh (n s ) is obtained by:
  • c is a pseudo-random sequence
  • the initialization value of the pseudo-random sequence is obtained by: among them For the cell identification; Round down;
  • the f ss is obtained by the following method:
  • ⁇ ss is the operator identifier
  • ⁇ ss ⁇ 0,1,...,m ⁇
  • m is the number of operators
  • the first transmitting node may further send the indication information on a D2D (Device-to-Device) resource on the authorized carrier.
  • D2D Device-to-Device
  • a transmission device for the unlicensed resource is disposed at the first transmission node, as shown in FIG. 2, and includes a first detection module 21 and a transmission module 22, where:
  • the first detecting module 21 is configured to perform idle channel assessment CCA detection on the specified unlicensed carrier resource
  • the sending module 22 is configured to: when the first detecting module detects that the unlicensed carrier resource is idle, send the indication information on the common resource or the designated resource, or send the indication information and perform a data transmission.
  • the indication information is used to notify that the unlicensed carrier resource is occupied.
  • the first transmission node includes a first terminal.
  • the common resource is located on the unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is one complete orthogonal frequency division multiplexing OFDM symbol;
  • the specified resource is located on the unlicensed carrier resource, starting from a first OFDM symbol after performing CCA success to ending at a current subframe, or performing a first subframe after a subframe in which the CCA is located;
  • the location where the first detection module performs the CCA includes any of the following locations: a start position of the subframe, an end position of the subframe, and a location configured by the base station.
  • the indication information is further used by the second transmitting node to determine that the second transit node is Can use the unlicensed carrier resources that are competing, including any of the following information: SRS, PSS/SSS, Preamble;
  • the second transmission node includes one or more of the following nodes: the first base station to which the first terminal belongs, and the neighboring base station of the first base station performs CCA on the designated unlicensed carrier resource. Other terminals that detect but do not compete for unlicensed carrier resources.
  • the indication information includes one or more of the following identifiers: a cell identifier, an operator identifier, and an intra-frequency reuse indication identifier.
  • the device further includes:
  • the indication information calculation module is configured to obtain the indication information by using a base sequence, and the indication information calculation module calculates the base sequence by using a manner of an embodiment.
  • the sending module is further configured to send the indication information on a D2D resource on the authorized carrier.
  • the device provided in this embodiment can implement the method in the foregoing Embodiment 1, and other detailed operations may be referred to the corresponding content in Embodiment 1, and details are not described herein again.
  • This embodiment describes a process performed by a second transmission node in a method for transmitting an unlicensed resource. As shown in FIG. 3, the method includes steps S310-S320:
  • Step S310 the second transmission node performs detection on a common resource or a designated resource
  • Step S320 when the indication information sent by the first transmission node is detected by the second transmission node, determining, according to the content of the indication information, whether the second transmission node can compete with the first transmission node. Unlicensed carrier resources for data transmission.
  • the first transmission node includes a first terminal
  • the second transmission node includes one or more of the following: a first base station to which the first terminal belongs, and a neighboring base station of the first base station, Other terminals on the unlicensed carrier resource that perform idle channel estimation CCA detection but do not compete for unlicensed carrier resources.
  • the first The base station determines whether the data transmission can be performed by using the unlicensed carrier resources that the first transmission node contends in the following manner:
  • the first base station Receiving, by the first base station, the indication information, where the indication information includes an intra-frequency reuse indication identifier, where the first base station determines that the unlicensed carrier resource that the first transmission node contends can use to perform data. And transmitting, the first base station broadcasts a notification to the neighboring base station of the operator to use the unlicensed carrier resource, and after the resource negotiation, the first base station and the terminal under the neighboring base station of the same operator are in the Data transmission is performed by multiplexing on the unlicensed carrier resources.
  • the neighboring base station determines whether the unlicensed carrier that the first transmission node contends can be used in the following manner Resources for data transfer:
  • the neighboring base station receives the indication information, determines that the operator identifier in the indication information is the same as itself, and the indication information includes an intra-frequency reuse indication identifier, and determines that the first transmission node can be used. Competing unlicensed carrier resources for data transmission; the neighboring base station performs resource negotiation with other base stations under the same carrier, and after performing resource negotiation, with other base stations under the same operator on the unlicensed carrier resources Data transmission by multiplexing.
  • the second transmission node when the second transmission node includes a second terminal that performs CCA detection on the unlicensed carrier resource but does not compete for an unlicensed carrier resource, the second transmission node is on a common resource or a designated resource.
  • Conduct testing including:
  • the second terminal performs blind detection on the common resource or the designated resource, and receives the indication information, and parses the received indication information;
  • Determining, by the second terminal, whether the non-authorized carrier resources that the first transmission node contends can use for data transmission includes:
  • the second terminal determines that the cell identifier in the indication information is the same as its own cell identifier, it is determined that the unlicensed carrier resource that the first transmission node contends can be multiplexed, and the unlicensed carrier resource is passed on the unlicensed carrier resource. Multiplexing for data transmission; or,
  • the second terminal determines that the cell identifier in the indication information is not related to its own cell identifier The same, but the carrier identifier is the same as the carrier identifier of the carrier, and the indication information includes the same-frequency multiplex indication indicator, and then it is determined that the unlicensed carrier resource that the first transmission node contends can be multiplexed. Data transmission is performed by multiplexing on the authorized carrier resources.
  • the method further includes: if the terminal cannot correctly parse the indication information, discarding the blind detection on the common resource or the designated resource, and performing CCA only in real time during the channel occupation period of the unlicensed carrier. Detecting; or discarding CCA detection during the channel occupation period of the unlicensed carrier.
  • the foregoing second terminal performs data transmission by using a multiplexing manner on the unlicensed carrier resource, where the second terminal is the first complete OFDM symbol or the first sub-subsequent to the common resource or the designated resource.
  • the frame position is transmitted in accordance with pre-scheduled information.
  • the performing data transmission by using the multiplexing manner on the unlicensed carrier resource includes: according to the resource location indicated in the pre-scheduling information, or the resource location negotiated by the terminal according to the data transmission through the multiplexing manner. And performing data transmission by multiplexing on the unlicensed carrier resource.
  • a transmission device for an unlicensed resource is disposed at the second transmission node. As shown in FIG. 4, the second detection module 41 and the transmission module 42 are included, where:
  • the second detecting module 41 is configured to perform detection on a common resource or a designated resource
  • the transmitting module 42 is configured to determine, according to the content of the indication information, whether the second transmission node can use the first transmission node, when the second detection module detects the indication information sent by the first transmission node.
  • the unlicensed carrier resources that are competing for data transmission.
  • the first transit node includes a first terminal
  • the second transmission node includes one or more of the following nodes: the first base station to which the first terminal belongs, and the neighboring base station of the first base station performs idle channel estimation on the unlicensed carrier resource. Other terminals that the CCA detects but does not compete for unlicensed carrier resources.
  • the common resource is located on an unlicensed carrier resource, and the maximum range is two subframes, and the minimum range is one complete orthogonal frequency division multiplexing OFDM symbol;
  • the designated resource is a physical uplink shared channel PUSCH resource located on an unlicensed carrier resource.
  • the second transmission node includes a first base station to which the first terminal belongs;
  • the transmitting module determines, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission, including:
  • the transmitting module determines that the second detecting module receives the indication information, determines that the first transmitting node competes for the unlicensed carrier resource successfully, and can use the unlicensed carrier resource to perform data transmission; or
  • the transmitting module determines that the second detection module receives the indication information and resolves that the indication information includes an intra-frequency reuse indication identifier, and determines that the unlicensed carrier resource that can be used by the first transmission node is used.
  • the transmission module broadcasts a notification to the neighboring base station of the same carrier to use the unlicensed carrier resource, and after performing resource negotiation, the terminal under the neighboring base station of the same operator is in the unlicensed carrier Data is transmitted by multiplexing.
  • the second transmission node includes a neighboring base station of the first base station to which the first terminal belongs;
  • the transmitting module determines, according to the content of the indication information, whether the second transmission node can use the unlicensed carrier resources that the first transmission node contends for data transmission, including:
  • the transmission module determines that the operator identifier in the indication information received by the second detection module is the same as itself, and the indication information includes an intra-frequency reuse indication identifier, and determines that the first transmission node can be used to compete.
  • the unlicensed carrier resources are forwarded to the data transmission; the transmission module performs resource negotiation with other base stations under the same carrier, and after the resource negotiation, the other base stations under the same carrier pass the unlicensed carrier resources. Data transmission in a way.
  • the second transmission node includes another terminal that performs CCA detection on the unlicensed carrier resource but does not compete for unlicensed carrier resources;
  • the detecting, by the second detecting module, on the common resource or the specified resource includes: the second detecting module performs blind detection on the common resource or the designated resource, and receives the indication information, and receives the indication information Analyze;
  • the transmitting module determines, according to the content of the indication information, whether the second transmission node can And performing data transmission by using the unlicensed carrier resources that the first transmission node contends, including:
  • the transmission module determines that the cell identifier in the indication information is different from its own cell identifier, but the operator identifier is the same as its own operator identifier, and the indication information includes the same frequency reuse indication identifier, And using the unlicensed carrier resources that the first transmission node contends, and performing data transmission on the unlicensed carrier resources by using a multiplexing manner.
  • the second detecting module is further configured to discard the blind detection on the common resource or the designated resource when the indication information cannot be correctly parsed, and perform CCA only in real time during the channel occupation period of the unlicensed carrier. Detecting; or discarding CCA detection during the channel occupation period of the unlicensed carrier.
  • the transmitting module performs data transmission by using a multiplexing manner on the unlicensed carrier resource, including:
  • the transmitting module performs data transmission according to pre-scheduling information in a first complete OFDM symbol or a first subframe position after a common resource or a specified resource.
  • the overall process of the UE assisting the base station to compete for the unlicensed carrier and data transmission is as shown in FIG. 5.
  • the process includes the UE assisting the subordinate base station to perform preemption of the unlicensed carrier resources, and then, after successfully competing for the resources, notifying the surrounding base stations and other UEs, and performing uplink transmission.
  • the following steps 101 to 105 are included:
  • Step 101 The base station sends an uplink scheduling grant (UL grant) to the UE, and notifies the UE of the following contention information: the unlicensed carrier number, the subframe number, the starting time position of performing the CCA, and the competition on the unlicensed carrier. Resources, pre-scheduling information;
  • UL grant uplink scheduling grant
  • the contention information may also carry an operator identifier and/or an intra-frequency reuse indication identifier. So that the UE performs uplink frequency division multiplexing transmission.
  • Step 102 The UE that receives the contention information sent by the base station performs CCA at the specified location.
  • Step 103 When the CCA detects that the channel is idle, the UE immediately sends an indication information or sends indication information and data on a common resource or a designated resource that is agreed with the base station in advance.
  • Step 104 The base station to which the UE that successfully contends (ie, the UE that has preempted the unlicensed carrier) belongs to and the neighboring base station and other UEs that are not competing successfully perform detection and reception on the common resource or the designated resource.
  • the purpose of the detection is: for other UEs that are not competing successfully, in order to know whether the unlicensed carrier that is competing can be multiplexed with the UE that has preempted the unlicensed carrier.
  • For the base station to which the UE that successfully competes or the neighboring base station it is determined whether the subordinate UE preempts the unlicensed carrier resource or whether the unlicensed carrier resource can be used. That is, for the base station to which the UE that successfully competes, the purpose of the detection is to know whether the subordinate UE successfully preempts the specified unlicensed carrier resource; for the neighboring carrier base station, the purpose of the detection is to know whether the same frequency is complex.
  • the data transmission is performed by using the unlicensed carrier resources that are contending with the frequency division multiplexing; for other UEs, the purpose of the detection is to detect whether the UEs in the same cell preempt the resources, or the same frequency complex
  • the UE in the same carrier cell is enabled to preempt the resources, so as to determine whether the node can use the pre-emptied unlicensed carrier resources, that is, whether the multi-user multiplexing uplink transmission can be performed.
  • Step 105 The base station to which the UE that the UE is successfully contending receives the indication information on the common resource or the designated resource, and further parses the content of the indication information. If the indication information sent by the subordinate UE is detected, the subordinate UE detects the detection. Unauthorized carrier resource preemption is successful and available. If the indication information sent by the subordinate UE is parsed and the intra-frequency multiplexing identifier is enabled, the subordinate base station needs to broadcast the unlicensed carrier available information to the adjacent same carrier base station through the X2 interface, and perform resource negotiation, the base station and the phase.
  • Other UEs with data transmission in the base station of the neighboring carrier perform uplink data transmission according to the negotiated resource in the subframe after the common resource or the designated resource, and the base station and the base station of the same carrier need to be in the unlicensed carrier.
  • the uplink data is detected and received in real time within the occupied duration.
  • the indication information is an SRS signal
  • the base station needs to perform uplink channel measurement according to the SRS signal when the channel is available, and the measurement result can be used for the current data transmission or for the next data transmission.
  • the UE that successfully competes sends an indication on the public resource or the specified resource
  • the affiliated base station receives the uplink data after receiving the indication information and knowing that the channel is available.
  • the UEs For the UE side, if the unsuccessful UE detects that the indication information is sent by the same cell UE and considers that the channel is available, according to the pre-scheduling information, the UEs use the frequency division multiplexing manner for data transmission on the unlicensed carrier. If the unsuccessful UE detects that the indication information is sent by the UE under the operator and the intra-frequency indication is enabled, the UEs may perform data transmission on the previously negotiated resource location. And the starting position of the data transmission is: starting with the first complete OFDM symbol after the common resource or the designated resource or the first subframe position.
  • the time-frequency division structure of the common resources is shown in FIG. 6a and FIG. b, and the common resource is an LBT (Frame Based Equipment) based on FBE (List Based Equipment). Domain location.
  • LBT Framework Based Equipment
  • FBE List Based Equipment
  • the maximum range is the first complete symbol after the successful execution of the CCA to the end of the next subframe boundary, that is, the maximum range of the public resource cannot exceed two subframes, and the minimum range is after the successful execution of the CCA.
  • a complete OFDM symbol is the first complete symbol after the successful execution of the CCA to the end of the next subframe boundary, that is, the maximum range of the public resource cannot exceed two subframes.
  • the common resource in the time domain is composed of one or more OFDM symbols, that is, the minimum unit in the time domain of the common resource is a complete OFDM symbol. And according to different CCA locations, the location of the common resources also changes, and the location of further execution of the CCA is determined by the base station.
  • the leftmost subframe in the fixed frame in Figure 6a and b (represented by the dot-filled area) is an LBT subframe, including CCA and common resources (represented by a slash-filled area), and the remaining nine subframes in the fixed frame, D represents In the downlink subframe, S represents a special subframe, and U represents an uplink subframe.
  • the UE starts performing CCA contention at the start position of one subframe
  • the UE if the UE performs CCA to compete for the unlicensed carrier resource less than one complete OFDM symbol boundary, the UE needs to be in the OFDM symbol.
  • An occupied signal is sent on the remaining time domain resources, such as indication information, to prevent other UEs of the system or different systems (such as Wi-Fi system) nodes (STA) from preempting the unlicensed carrier. If the UE performs CCA to compete for unlicensed carrier resources, it happens to be The boundary of a complete OFDM symbol.
  • the starting position of the common resource starts from the first complete OFDM symbol start position after the UE performs the CCA competition to the resource, and the content is sent according to the UE (instruction information or The size of the indication information and the data is determined to occupy one or more OFDM symbols.
  • common resources can also be divided according to the frequency domain.
  • the common resource is a resource that occupies a predetermined bandwidth in the frequency domain after the CCA is successfully competed to the unlicensed carrier resource or a frequency domain resource composed of multiple subcarriers (such as but not limited to one or more PRBs (Physical Resouce Blocks).
  • the resource block)) can be continuously occupied in the time domain until the end of the next subframe in which the CCA subframe is executed.
  • the common resource is mainly used for sending the notification signal, so that the base station and the uncompetitive UE detect and receive the notification signal on the common resource, so as to obtain the occupation of the unlicensed carrier, and reduce the loss caused by the real-time blind detection of the base station.
  • the designated resource for transmitting the indication information to notify the base station and other UEs is determined according to the location where the UE performs CCA, and the designated resource is always the first one after successfully executing the CCA.
  • the OFDM symbol starts to the boundary of this subframe.
  • a designated resource (such as PUSCH) is as shown in FIG. 7a. If the location at which the CCA is performed is at the end of one subframe, the designated resource is the PUSCH resource in the next subframe, as shown in FIG. 7b. That is to say, the UE that successfully contends to the unlicensed carrier resource sends an indication information or indication information and data on the designated resource, for notifying the base station and other UEs of which unlicensed carrier has been preempted. Optionally, the base station that is notified is notified of uplink data reception. Similarly, the base station and other UEs also detect the indication information on the designated resource. The role of the designated resource is the same as that of the public resource, and is used as a transmission carrier for transmitting indication information.
  • This example mainly describes the process of generating the indication information sent by the UE performing CCA successfully.
  • two types of indication information generation methods are mainly introduced: the first one is to generate required indication information by modifying a base sequence commonly used in the LTE physical layer protocol. The second is to define the indication sequence sent by the UE.
  • the first process for obtaining the required indication information by modifying the base sequence is as follows:
  • the indication information that is sent may include: SRS (probe reference signal), PSS/SSS (primary synchronization sequence/secondary synchronization sequence), and Preamble (preamble), etc., and these signals are all based on the base sequence. Obtained after a certain amount of processing. Therefore, the basic sequence that satisfies the identifiers of the cell ID (cell identity), the carrier identifier, and the intra-frequency reuse indicator identifier in the transmitted sequence is mainly described. The build process.
  • the original sequence of indication information is sent to the UE side, where there are N packets, u represents the group number u ⁇ ⁇ 0, 1, ..., N-1 ⁇ , and v is the base sequence number in the group.
  • the sequence group number u is determined by the following formula:
  • the new generation mode of (n s ) and f ss if the sequence needs to carry the Cell ID, the original group jump switch is turned on.
  • the cell identifier indication is turned on, as described in the following formula:
  • the initialization value of the pseudo-random sequence c is generated by the Cell ID value, that is, among them For the community identity, Rounded down.
  • the carrier needs to carry an additional carrier identifier in the sequence, it can be obtained according to the following formula:
  • f ss can be obtained by using Cell ID and N mode, namely: among them For the cell identification.
  • the sequence can carry the Cell ID and the carrier identifier, so f ss can be obtained by:
  • ⁇ ss is the operator identifier
  • m is the number of operators
  • the operator identifier can be known by the base station.
  • the parameters can be flexibly configured and configured differently, and the information carried in the indication sequence is different. Enter In one step, if the transmitted indication sequence needs to carry the same frequency indication flag (0 or 1), the generated sequence can be scrambled with a new sequence.
  • the above N can be selected as 30, so that the value can be used in the standard, but is not limited to this value.
  • m is 3 according to the three major operators in China.
  • the first method is to replace the original formula structure without changing the original formula, so the standardization workload is minimal.
  • Method 2 Define an indicator sequence. The specific process is as follows:
  • the number of UE ID sets is q, that is, ⁇ a 0 ,...,a q-1 ⁇
  • the number in the set of Cell IDs is r, that is, ⁇ b 0 ,...,b r-1 ⁇
  • the number in the operator set It is p, that is, ⁇ c 0 , c 1 , ... c p ⁇ .
  • the same frequency reuse identifier set includes 0 and 1.
  • the length of the custom sequence depends on the bandwidth.
  • q, r, and p are not limited, and the optional p can be 2.
  • the above two methods may be modified as appropriate according to the content that needs to be carried in the specific indication information.
  • the information carried in the above is only an example, and in other embodiments, the information carried by the above may not be used.
  • This example mainly describes the process of informing the base station and other UEs by using the indication information described in the foregoing example after the UE contends to the unlicensed carrier resource, including steps 501-503:
  • Step 501 For the UE side, the base station triggers or the designated UE performs a CCA detection operation on the unlicensed carrier.
  • the UE that triggers the contention on the unlicensed carrier by the base station includes the UE that participates in the unlicensed carrier competition in the predefined period, the UE that receives the UL grant, or the UE that is triggered by the Paging message.
  • These UEs will detect at the CCA location notified by the base station, and the location and number of CCAs performed will be different for different frame structures.
  • the location at which CCA is performed can be at the beginning of a subframe or at the end of a subframe.
  • LBE Land Based Equipment, load-based equipment
  • the position of the location where the CCA is performed within the subframe is uncertain, and the number of CCAs is not fixed. These can all be configured by the base station side.
  • the location where the UE performs the CCA is the same, so that the UEs may compete for the unlicensed carrier resources specified by the base station at the same time.
  • the random backoff value generated by each UE is different, only one UE will eventually compete to the designated unlicensed carrier at a time.
  • Step 502 The UE that successfully contends in step 501 sends an indication message to the base station and other UEs on the common resource or the designated resource, or sends the indication information and the uplink data of the UE itself.
  • the common resource or designated resource described here is the resource described in Example 2 and Example 3, and the repeated description is not repeated here.
  • the indication information sent by the UE may be an SRS, a Preamble, a PSS/SSS, or an indication identifier.
  • SRS SRS
  • Preamble Preamble
  • PSS/SSS PSS/SSS
  • indication identifier For optional SRS signal transmission, refer to Example 4 for the corresponding sequence generation method.
  • a UE that successfully competes sends indication information or indication information and data on a defined common resource or a designated resource.
  • multiple UEs may compete for unlicensed carriers at the same time.
  • the UEs pass time division, frequency division or code on the defined common resources or designated resources.
  • the indication information or the transmission of the indication information and the data is performed.
  • LBE only one UE can successfully compete for resources each time the CCA is executed.
  • the UE can send an indication message or indication information and its own data on the public resource or the designated resource.
  • Step 503 The first base station (the base station to which the UE that successfully contends the UE) and the neighboring base station and the unsuccessful UE both detect and receive the indication information on the common resource or the designated resource, and the base station further receives the uplink data.
  • the first base station receives the indication information (which may be indication information for notification or measurement) or indication information and data on the common resource or the designated resource, and the first base station decodes the sending by the UE during the parsing process. If the data fails, the first base station can only know the unlicensed carrier that the subordinate UE has successfully contend with by receiving the indication information. At this time, the first base station has two processing methods: the first one is to perform scheduling information transmission of the subordinate UE. In order to enable the UE with data transmission in the cell to perform frequency division multiplexing transmission data on the unlicensed carrier resources that are contending, the UE side needs to receive the scheduling information sent by the base station before performing uplink transmission on the corresponding resource.
  • the indication information which may be indication information for notification or measurement
  • the first base station decodes the sending by the UE during the parsing process. If the data fails, the first base station can only know the unlicensed carrier that the subordinate UE has successfully contend with by receiving the indication information.
  • the first base station has two
  • the second is that the uplink scheduling information has been sent in the jth subframe before the UE performs the CCA, and the time when the UE competes for the resource is at j+k.
  • the first base station Before the (k ⁇ 4) subframe, the first base station starts receiving data transmitted from the UE side on the j+k subframe. As long as the UE that receives the unlicensed carrier resources on the common resource or the designated resource is available, the uplink data transmission is started in the j+k subframe by means of time division, frequency division or code division.
  • the first base station needs to broadcast the non-authorized carrier resources available to other cells in the neighboring carrier through the X2 port broadcast, and perform the Negotiation implements data transmission of UEs in different cells. If the intra-frequency multiplexing function is not enabled, only the UE in the cell can transmit data through multiplexing, and the first base station receives the uplink data sent by the subordinate UE within the occupied channel duration.
  • the neighboring different carrier base stations receive the indication information, that is, the unlicensed carrier is considered to be occupied, and the detection is stopped.
  • the indication information is detected on the common resource or the designated resource, and the Cell ID is determined to determine whether it is the same cell or whether the indication information carries the operator identifier and the intra-frequency reuse indication identifier. If the UE does not compose the successful indication that the indication information carries the same Cell ID as itself, the UE considers that the specific unlicensed carrier is available, and the common subframe or the first subframe after the designated resource or the CCA detected channel is performed. After the idle UE sends its own data, the UEs that can correctly resolve the available channels can perform uplink data transmission by means of frequency division multiplexing.
  • the UEs can consider that the resources on the specific unlicensed carrier are available, and according to the agreement After the public resource or the first subframe after the specified resource or after the CCA detects that the channel idle UE has transmitted its own data, the UEs that can correctly resolve the available channels can perform uplink data transmission by means of frequency division multiplexing. . If the UE that has not successfully competed cannot parse the Cell ID, the operator identifier, and the intra-frequency reuse indication identifier in the indication information, the UEs consider that the channel is unavailable.
  • the first method abandoning the detection on the common resource or the designated resource, but performing channel detection in real time during the channel occupation period. It is mainly for the UE that performs data transmission on the unlicensed carrier that is competing, and the data is transmitted in advance, which can further improve the channel resource utilization efficiency.
  • the channel occupancy period is calculated from the UE transmitting the occupation signal by the CCA that successfully performed.
  • the UE may perform a data transmission on a common resource or a designated resource during the channel occupation period, during the channel occupation period. Unlicensed carrier resources afterwards can also perform data transmission.
  • the second method abandon channel busy detection directly during the unlicensed carrier occupation period. Doing so may result in a large waste of channel resources.
  • FIG. 8 is a schematic diagram of a specific process for a UE that successfully competes to transmit an SRS signal on a common resource
  • the occupation signal (such as indication information) sent by the UE performing CCA success is used to notify the base station that the specific unlicensed carrier has been successfully preempted, and the other aspect is used for the base station to perform uplink channel measurement.
  • a UE having an unlicensed carrier competition at the beginning of one subframe performs CCA detection, and if the competing UE performs CCA success, but the CCA success time is less than one complete OFDM symbol boundary, then optional Send an occupation signal.
  • the SRS signal may be transmitted by frequency division or code division on the common resource after the CCA. It should be emphasized that the SRS signal sent here not only informs the base station of the channel, but also tells the base station to perform uplink channel quality measurement of the UE, that is, how much bandwidth, period, subframe, etc. the base station measures.
  • the base station receives the SRS signal for notifying the occupancy from the contention of the UE, and further measures the channel condition between each UE and the base station, and better allocates appropriate resources and MCS (Modulation and Coding Scheme) to each UE. With coding strategy).
  • MCS Modulation and Coding Scheme
  • UE1 competes for resources, and is the first in public resources.
  • An indication signal is transmitted on the OFDM symbols 81.
  • UE2 and UE3 that are not competing successfully receive and detect the occupation signal sent by UE1 on the common resource or the specified resource. For example, in FIG. 8, UE2 and UE3 receive the indication information sent by UE1 on the ninth symbol 82 on the common resource. It is known that the carrier is occupied.
  • the UE2 If the UE 2 receives and detects that the Cell ID carried in the signal sent by the UE1 is the same as itself, the UE2 transmits its own SRS signal on the common resource, that is, notifies the base station to measure the channel condition between it and the base station.
  • the Cell ID detected by UE3 is different from itself, but it is checked. It is detected that the occupant signal carries the same-frequency multiplex indication indicator and the same-frequency multiplex is enabled. That is, UE1 and UE3 are UEs of different cells under the same operator, and UE3 also sends its own SRS signal on the common resource.
  • UE2 and UE3 either abandon the reception and consider that the carrier is unavailable and stop detecting.
  • the idle state of the detected channel is always performed during the unlicensed carrier occupation period.
  • the base station that has been received and detected on the common resource at this time can know the channel status of other UEs, and can conveniently deliver the appropriate MCS level according to the reported channel measurement information, thereby improving the transmission quality.
  • the contending UE may repeatedly send the occupation signal.
  • FIG. 9 is a schematic diagram of implementing a UE to notify other nodes by using a D2D mechanism.
  • the D2D mechanism is adopted. It is assumed that the base station side specifies the corresponding resources on the unlicensed carrier for all the UEs in advance. The first base station and the neighboring base station have better X2 interfaces and the synchronization is better. The UEs that have not competed successfully detect the carrier. When it is busy, it starts to detect on the D2D PSSCH (shared channel).
  • UE1 successfully contends to the unlicensed carrier at time t in all the participating UEs on the unlicensed carrier.
  • UE1 will immediately send the previously agreed indication information on the corresponding resource of the PSSCH on the authorized carrier.
  • other UEs such as UE2, UE3
  • the base station and the neighboring base station also detect the agreed indication information on the PSSCH resource.
  • the UE1 notifies the other base stations and the UE of the message that the unlicensed carrier resource has been successfully preempted.
  • the UE1 that successfully competes needs to send an indication message indicating that the channel is occupied on the unlicensed carrier, so as to prevent other nodes from preempting.
  • PSSCH resources in the D2D can be flexibly configured in each subframe and each time slot.
  • Embodiment 5 A computer readable storage medium storing computer executable instructions for performing the methods of Embodiment 1 and Embodiment 3 above.
  • the embodiment of the present invention provides a transmission method and device on an unlicensed resource. After the UE assists the base station to preempt the unlicensed carrier on the unlicensed spectrum, the UE promptly and promptly informs the base station and/or the neighboring base station and participates in the competition but does not compete successfully. Whether a certain unlicensed carrier resource of the UE is available.

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Abstract

一种非授权资源的传输方法和装置，所述方法包括：第一传输节点在指定的非授权载波资源上进行CCA检测，当检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息或者发送指示信息和进行一次数据传输。

Description

一种非授权资源的传输方法和装置 技术领域
本文涉及但不限于无线通信技术，尤其涉及一种非授权资源的传输方法和装置。
背景技术
非授权载波具有下面的特征：
1、免费/低费用(不需要购买非授权频谱，频谱资源为零成本)；
2、准入要求低，成本低(个人、企业都可以参与部署，设备商的设备可以任意部署)；
3、可用带宽大(5GHz、2.4GHz的非授权频段都可以使用)；
4、共享资源(多个不同***都运营其中时或者同一***的不同运营商运营其中时，可以考虑一些共享资源的方式，提高频谱效率)；
5、无线接入技术多(跨不同的通信标准，协作难，网络拓扑多样)；
6、无线接入站点多(用户数量大，协作难度大，集中式管理开销大)；
7、应用多(多业务被提及可以在其中运营，例如M2M(Machine-to-Machine，机器到机器)、V2V(Vehicle-to-Vehicle，车辆到车辆))。
在LTE(Long Term Evolution，长期演进)的演进过程中，LTE Rel-13版本于2014年9月份开始立项研究，其中一个重要内容就是LTE***使用非授权载波工作。这项技术将使得LTE***能够使用目前存在的非授权载波，大大提升LTE***的潜在频谱资源，使得LTE***能够获得更低的频谱成本。
但是LTE利用非授权载波进行数据传输方面面临诸多问题，其中问题之一就是UE(User Equipment，用户设备)侧参与非授权载波资源的竞争且竞争成功后，如何将成功占用非授权载波资源的信息快速通知出去，以及如何高效的进行上行数据传输。针对此问题，目前尚未有具体的方案。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供一种非授权资源的传输方法和装置，参与非授权载波资源竞争并竞争成功的传输节点能够快速将占用非授权载波资源的信息通知给其他传输节点。
本发明实施例提供如下技术方案。
一种非授权资源的传输方法，所述方法包括：
一种非授权资源的传输方法，包括：
第一传输节点在指定的非授权载波资源上执行空闲信道评估CCA检测；
所述第一传输节点当检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息，或者发送指示信息和进行一次数据传输。
可选地，所述指示信息用于通知所述非授权载波资源已占用。
可选地，所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号。
可选地，所述公共资源在时域上包括以下任一资源：
执行CCA成功后的第一个完整的OFDM符号；
执行CCA成功后的从第一个完整的OFDM符号开始到执行CCA的子帧边界中的OFDM符号；
执行CCA成功后的从第一个完整的OFDM符号开始到下一个子帧边界中的OFDM符号；所述公共资源在频域上包括以下任一资源：
整个频域资源；
整个频域上占用预定带宽的资源；
由多个子载波构成的频域资源。
可选地，所述指定资源位于所述非授权载波资源上，为执行CCA成功后 的第一个OFDM符号开始到当前子帧结束，或者执行CCA所在子帧后的第一个子帧。
可选地，所述指定资源为物理上行共享信道PUSCH资源。
可选地，所述指示信息还用于供第二传输节点判断所述第二传输节点是否能使用所述非授权载波资源；
所述第一传输节点包括第一终端；
所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属的第一基站，所述第一基站的相邻基站，在所述指定的非授权载波资源上进行了CCA检测但未竞争到所述非授权载波资源的其它终端；
所述指示信息包括以下任一信息：信道探测参考信号SRS、主辅同步序列PSS/SSS、前导序列Preamble。
可选地，所述指示信息包含以下标识中的一种或多种：小区标识、运营商标识、同频复用指示标识。
可选地，所述指示信息由基序列得到，所述基序列采用以下方法得到：
基序列
Figure PCTCN2016076167-appb-000001
其中u表示序列组序号，u∈{0,1,...,N-1}，N为分组数，v是组内的基序列号，时隙ns内的序列组序号u由下式得到：
u＝(fgh(ns)+fss)modN，其中fgh(ns)为组跳转样式，fss为序列移位样式；
所述fgh(ns)采用下式得到：
Figure PCTCN2016076167-appb-000002
其中c为伪随机序列，所述伪随机序列的初始化值采用下式得到：
Figure PCTCN2016076167-appb-000003
其中
Figure PCTCN2016076167-appb-000004
为小区标识；
Figure PCTCN2016076167-appb-000005
为向下取整；
所述fss采用以下方法得到：
对于物理上行控制信道PUCCH，
Figure PCTCN2016076167-appb-000006
对于物理上行共享信道PUSCH，
Figure PCTCN2016076167-appb-000007
其中Δss为运营商标识，Δss∈{0,1,...,m}，m为运营商个数；
对于信道探测参考信号SRS，
Figure PCTCN2016076167-appb-000008
可选地，所述第一传输节点在授权载波上的设备对设备D2D资源上发送所述指示信息。
可选地，执行CCA的位置包括以下任一位置：子帧的开始位置、子帧的结束位置、配置的位置。
一种非授权资源的传输装置，设置于第一传输节点，包括：
第一检测模块，设置成在指定的非授权载波资源上执行空闲信道评估CCA检测；
发送模块，设置成在所述第一检测模块检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息，或者发送指示信息和进行一次数据传输。
可选地，所述指示信息用于通知所述非授权载波资源已占用。
可选地，所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
所述指定资源位于所述非授权载波资源上，为执行CCA成功后的第一个OFDM符号开始到当前子帧结束，或者执行CCA所在子帧后的第一个子帧。
可选地，所述指示信息还用于供第二传输节点判断所述第二传输节点是否能使用所述非授权载波资源；
所述第一传输节点包括第一终端；
所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属的第一基站，所述第一基站的相邻基站，在所述指定的非授权载波资源上进行了CCA检测但未竞争到所述非授权载波资源的其它终端；所述指示信息包括以下任一信息：信道探测参考信号SRS、主辅同步序列PSS/SSS、前导序列Preamble。
可选地，所述指示信息包含以下标识中的一种或多种：小区标识、运营商标识、同频复用指示标识。
可选地，所述的装置还包括：
指示信息计算模块，设置成采用基序列得到所述指示信息，所述指示信息计算模块采用以下方式计算得到所述基序列
Figure PCTCN2016076167-appb-000009
其中u表示序列组序号，u∈{0,1,...,N-1}，N为分组数，v是组内的基序列号，时隙ns内的序列组序号u由下式得到：
u＝(fgh(ns)+fss)modN，其中fgh(ns)为组跳转样式，fss为序列移位样式；
所述fgh(ns)采用下式得到：
Figure PCTCN2016076167-appb-000010
其中c为伪随机序列，所述伪随机序列的初始化值采用下式得到：
Figure PCTCN2016076167-appb-000011
其中
Figure PCTCN2016076167-appb-000012
为小区标识；
Figure PCTCN2016076167-appb-000013
为向下取整；
所述fss采用以下方法得到：
对于物理上行控制信道PUCCH，
Figure PCTCN2016076167-appb-000014
对于物理上行共享信道PUSCH，
Figure PCTCN2016076167-appb-000015
其中Δss为运营商标识，Δss∈{0,1,...,m}，m为运营商个数；
对于信道探测参考信号SRS，
Figure PCTCN2016076167-appb-000016
可选地，所述发送模块还设置成在授权载波上的设备对设备D2D资源上发送所述指示信息。
可选地，所述第一检测模块执行CCA的位置包括以下任一位置：子帧的开始位置、子帧的结束位置、配置的位置。
本发明实施例还提供一种非授权资源的传输方法和装置，能够根据竞争成功的传输节点发送的信息，复用所竞争到的非授权载波资源进行数据传输。
本发明实施例提供如下技术方案。
一种非授权资源的传输方法，包括：
第二传输节点在公共资源或者指定资源上进行检测；
所述第二传输节点当检测到第一传输节点发送的指示信息时，根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到 的非授权载波资源进行数据传输。
可选地，所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
所述指定资源为位于所述非授权载波资源上的物理上行共享信道PUSCH资源。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括所述第一终端所属的第一基站；
所述根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述第一基站接收到所述指示信息，确定所述第一传输节点竞争非授权载波资源成功，能够使用所述非授权载波资源进行数据传输；
或者，
所述第一基站接收到所述指示信息，且所述指示信息中包含同频复用指示标识，则所述第一基站确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输，所述第一基站广播通知同运营商的相邻基站使用所述非授权载波资源，在进行资源协商后，所述第一基站与所述同运营商的相邻基站下的终端在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括所述第一终端所属的第一基站的相邻基站；
所述根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述相邻基站接收到所述指示信息，判断所述指示信息中的运营商标识与自身相同，且所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输；所述相邻基站与同运营商下其他基站进行资源协商，在进行资源协商后，与所述同运营商下其他基站在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括在所述非授权载波资源上进行了CCA检测但未竞争到非授权载波资源的第二终端；
所述第二传输节点在公共资源或者指定资源上进行检测，包括：所述第二终端在所述公共资源或指定资源上进行盲检和接收所述指示信息，并对接收到的指示信息进行解析；
所述根据所述指示信息内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述第二终端如果判断所述指示信息中的小区标识与自身的小区标识相同，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输；或者，
所述第二终端如果判断所述指示信息中的小区标识与自身的小区标识不同，但运营商标识与自身的运营商标识相同且所述指示信息中包含同频复用指示标识，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述的方法还包括：当所述第二传输节点不能正确解析指示信息，则放弃在所述公共资源或者指定资源上进行盲检，只在所述非授权载波的信道占用期内实时进行CCA检测；或者放弃在所述非授权载波的信道占用期内进行CCA检测。
可选地，所述第二终端在所述非授权载波资源上通过复用方式进行数据传输，包括：
所述第二终端在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置按照预调度信息进行数据传输。
可选地，所述在非授权载波资源上通过复用方式进行数据传输包括：根据预调度信息中指示的资源位置，或者，根据通过复用方式进行数据传输的终端间自主协商好的资源位置，在所述非授权载波资源上通过复用方式进行数据传输。
一种非授权资源的传输装置，设置于第二传输节点，包括：
第二检测模块，设置成在公共资源或者指定资源上进行检测；
传输模块，设置成在所述第二检测模块检测到第一传输节点发送的指示信息时，根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输。
可选地，所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
所述指定资源为位于所述非授权载波资源上的物理上行共享信道PUSCH资源。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括所述第一终端所属的第一基站；
所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述传输模块判断所述第二检测模块接收到所述指示信息，确定所述第一传输节点竞争非授权载波资源成功，能够使用所述非授权载波资源进行数据传输；或者，
所述传输模块判断所述第二检测模块接收到所述指示信息且解析到所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输，所述传输模块广播通知同运营商的相邻基站使用所述非授权载波资源，在进行资源协商后，与所述同运营商的相邻基站下的终端在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括所述第一终端所属的第一基站的相邻基站；
所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述传输模块判断所述第二检测模块接收到的指示信息中的运营商标识与自身相同，且所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输；所述传输模块与同运营商下其他基站进行资源协商，在进行资源协商后，与所述同运营商下其 他基站在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括在所述非授权载波资源上进行了CCA检测但未竞争到所述非授权载波资源的其它终端；
所述第二检测模块在公共资源或者指定资源上进行检测，包括：所述第二检测模块在所述公共资源或指定资源上进行盲检和接收所述指示信息，并对接收到的指示信息进行解析；
所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述传输模块如果判断所述指示信息中的小区标识与自身的小区标识相同，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输；或者，
所述传输模块如果判断所述指示信息中的小区标识与自身的小区标识不同，但运营商标识与自身的运营商标识相同且所述指示信息中包含同频复用指示标识，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第二检测模块还设置成在不能正确解析指示信息时，放弃在所述公共资源或者指定资源上进行盲检，只在所述非授权载波的信道占用期内实时进行CCA检测；或者放弃在所述非授权载波的信道占用期内进行CCA检测。
可选地，所述传输模块在所述非授权载波资源上通过复用方式进行数据传输，包括：
所述传输模块在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置按照预调度信息进行数据传输。
本发明实施例还提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述方法。
本发明实施例提供了一种非授权资源上的传输方法和装置，UE在非授权 频谱上协助基站抢占非授权载波后，及时快速的通知所属基站和/或邻近基站以及参与竞争却未竞争成功的UE某非授权载波资源是否可用的情况。根据这个通知消息可以使同小区和/或同运营商下的UE进行频分复用，大大提高了非授权载波资源的利用率。可选方案中，通过发送的指示序列，可能帮助基站获取更准确的信道状况，提高通信的质量。而且能够使基站在指定资源上进行检测，进一步降低了基站的能耗和减少盲检的时间，大大提高了基站工作效率。
在阅读并理解了附图和详细描述后，可以明白其它方面。
附图概述
图1为本发明实施例一的流程图；
图2为本发明实施例二的装置结构示意图；
图3为本发明实施例三的流程图；
图4为本发明实施例四的装置结构示意图；
图5为应用示例1中UE协助基站竞争非授权载波及数据传输的整体流程图；
图6a-b为应用示例2中公共资源的时频划分结构示意图；
图7a-b为应用示例3中指定资源结构示意图；
图8为应用示例4中竞争成功的UE在公共资源上发送SRS信号的具体过程示意图；
图9为应用示例5中采用D2D机制实现UE通知其他节点的示意图。
本发明的实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机***中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下， 可以以不同于此处的顺序执行所示出或描述的步骤。
实施例一
本实施例描述一种非授权资源的传输方法中第一传输节点执行的处理，如图1所示，包括步骤S110～S120：
步骤S110，第一传输节点在指定的非授权载波资源上执行空闲信道评估CCA(Clear Channel Assessment，空闲信道评估)检测；
可选地，所述第一传输节点包括第一终端。
步骤S120，所述第一传输节点当检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息，或者发送指示信息和进行一次数据传输。
可选地，所述指示信息用于通知所述非授权载波资源已占用。
本可选方案中，所述非授权载波资源已占用意味着所述第一传输节点已经竞争到或者已获取所述非授权载波资源。
在其它可选方案中，所述指示信息可以携带其它内容，比如可以携带能否复用的指示标识，再比如可以携带第一传输节点的所属小区的标识、和/或运营商标识等。所述指示信息还可以是一个不携带内容的空消息。
无论所述指示信息携带何种内容、或为空消息，如果所述公共资源或者指定资源位于所述非授权载波资源上，则在所述公共资源或者指定资源上发送该指示信息的行为本身就可以用于通知所述第一传输节点竞争到或者已获取所述非授权载波资源。
可选地，所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)符号。
可选地，所述公共资源在时域上包括以下任一资源：执行CCA成功后的第一个完整的OFDM符号；执行CCA成功后的从第一个完整的OFDM符号开始到执行CCA的子帧边界中的OFDM符号；执行CCA成功后的从第一个完整的OFDM符号开始到下一个子帧边界中的OFDM符号。
可选地，所述公共资源在频域上包括以下任一资源：整个频域资源；整 个频域上占用预定带宽的资源；由多个子载波构成的频域资源。
可选地，所述指定资源位于非授权载波资源上，为执行CCA成功后的第一个OFDM符号开始到当前子帧结束，或者执行CCA所在子帧后的第一个子帧。
可选地，所述指定资源为物理上行共享信道PUSCH资源。
可选地，执行CCA的位置包括以下任一位置：子帧的开始位置、子帧的结束位置、配置的位置。
其中，配置的位置可以由基站配置，或者协议规定；执行CCA的位置也可以是基站和终端约定的位置。
在一个可选实施例中，所述指示信息还用于供第二传输节点判断所述第二传输节点是否能使用所述非授权载波资源，包括以下任一信息：SRS(Sounding Reference Signal，信道探测参考信号)、主辅同步序列PSS/SSS(Primary Synchronization Signal，主同步信号/Secondary Synchronization Signal，辅同步信号)、Preamble(前导序列)；
所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属的第一基站，所述第一基站的相邻基站，在所述指定的非授权载波资源上进行了CCA检测但未竞争到非授权载波资源的其它终端。
为了供第二传输节点进行判断，所述指示信息中可以包含以下标识：小区标识。可选地，所述指示信息还包含以下标识：运营商标识和/或同频复用指示标识。
可选地，上述SRS，PSS/SSS或Preamble均可由基序列
Figure PCTCN2016076167-appb-000017
得到，其中u表示序列组序号，u∈{0,1,...,N-1}，N为分组数，v是组内的基序列号，时隙ns内的序列组序号u由下式得到：
u＝(fgh(ns)+fss)modN，其中fgh(ns)为组跳转样式，fss为序列移位样式；
所述fgh(ns)采用下式得到：
Figure PCTCN2016076167-appb-000018
其中c为伪随机序列，所述伪随机序列的 初始化值采用下式得到：
Figure PCTCN2016076167-appb-000019
其中
Figure PCTCN2016076167-appb-000020
为小区标识；
Figure PCTCN2016076167-appb-000021
为向下取整；
所述fss采用以下方法得到：
对于物理上行控制信道PUCCH，
Figure PCTCN2016076167-appb-000022
对于物理上行共享信道PUSCH，
Figure PCTCN2016076167-appb-000023
其中Δss为运营商标识，Δss∈{0,1,...,m}，m为运营商个数；
对于信道探测参考信号SRS，
Figure PCTCN2016076167-appb-000024
在一个可选实施例中，所述第一传输节点还可以在授权载波上的D2D(Device-to-Device，设备对设备)资源上发送所述指示信息。
实施例二
一种非授权资源的传输装置，设置于第一传输节点，如图2所示，包括第一检测模块21和发送模块22，其中：
所述第一检测模块21，设置成在指定的非授权载波资源上执行空闲信道评估CCA检测；
所述发送模块22，设置成在所述第一检测模块检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息，或者发送指示信息和进行一次数据传输。
可选地，所述指示信息用于通知所述非授权载波资源已占用。
可选地，所述第一传输节点包括第一终端。
可选地，所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
所述指定资源位于所述非授权载波资源上，为执行CCA成功后的第一个OFDM符号开始到当前子帧结束，或者执行CCA所在子帧后的第一个子帧；
可选地，所述第一检测模块执行CCA的位置包括以下任一位置：子帧的开始位置、子帧的结束位置、基站配置的位置。
可选地，所述指示信息还用于供第二传输节点判断所述第二传输节点是 否能使用竞争到的非授权载波资源，包括以下任一信息：SRS、PSS/SSS、Preamble；
所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属第一基站，所述第一基站的相邻基站，在所述指定的非授权载波资源上进行了CCA检测但未竞争到非授权载波资源的其它终端。可选地，所述指示信息包含以下标识中的一种或多种：小区标识、运营商标识、同频复用指示标识。
可选地，所述的装置还包括：
指示信息计算模块，设置成采用基序列得到所述指示信息，所述指示信息计算模块采用实施例一种的方式计算得到所述基序列
Figure PCTCN2016076167-appb-000025
可选地，所述发送模块还设置成在授权载波上的D2D资源上发送所述指示信息。
要说明的是，由于本实施例提供的设备可以实现上述实施例一的方法，故其他详细操作可以参见实施例一的相应内容，在此不再赘述。
实施例三
本实施例描述一种非授权资源的传输方法中第二传输节点执行的处理，如图3所示，所述方法包括步骤S310～S320：
步骤S310，第二传输节点在公共资源或者指定资源上进行检测；
所述公共资源和指定资源的位置参见实施例一中描述。
步骤S320，所述第二传输节点发送的当检测到第一传输节点发送的指示信息时，根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输。
可选地，第一传输节点包括第一终端；第二传输节点包括以下节点中的一种或多种：所述第一终端所属的第一基站，所述第一基站的相邻基站，在所述非授权载波资源上进行了空闲信道评估CCA检测但未竞争到非授权载波资源的其它终端。
可选地当所述第二传输节点包括所述第一终端所属的第一基站，该第一 基站采用以下方式判断是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输：
所述第一基站接收到所述指示信息，确定所述第一传输节点竞争非授权载波资源成功，能够使用所述非授权载波资源进行数据传输；或者
所述第一基站接收到所述指示信息，且所述指示信息中包含同频复用指示标识，则所述第一基站确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输，所述第一基站广播通知同运营商的相邻基站使用所述非授权载波资源，在进行资源协商后，所述第一基站与所述同运营商的相邻基站下的终端在所述非授权载波资源上通过复用方式进行数据传输。
可选地，当所述第二传输节点包括所述第一终端所属的第一基站的相邻基站，该相邻基站采用以下方式判断是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输：
所述相邻基站接收到所述指示信息，判断所述指示信息中的运营商标识与自身相同，且所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输；所述相邻基站与同运营商下其他基站进行资源协商，在进行资源协商后，与所述同运营商下其他基站在所述非授权载波资源上通过复用方式进行数据传输。
可选地，当所述第二传输节点包括在所述非授权载波资源上进行了CCA检测但未竞争到非授权载波资源的第二终端，所述第二传输节点在公共资源或者指定资源上进行检测，包括：
所述第二终端在所述公共资源或指定资源上进行盲检和接收所述指示信息，并对接收到的指示信息进行解析；
所述第二终端采用以下方式判断是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输包括：
所述第二终端如果判断所述指示信息中的小区标识与自身的小区标识相同，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输；或者，
所述第二终端如果判断所述指示信息中的小区标识与自身的小区标识不 同，但运营商标识与自身的运营商标识相同且所述指示信息中包含同频复用指示标识，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述方法还包括：如果所述终端不能正确解析指示信息，则放弃在所述公共资源或者指定资源上进行盲检，只在所述非授权载波的信道占用期内实时进行CCA检测；或者放弃在所述非授权载波的信道占用期内进行CCA检测。
可选地，上述第二终端在非授权载波资源上通过复用方式进行数据传输是指：所述第二终端在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置按照预调度信息进行数据传输。
可选地，所述在非授权载波资源上通过复用方式进行数据传输包括：根据预调度信息中指示的资源位置，或者，根据通过复用方式进行数据传输的终端间自主协商好的资源位置，在所述非授权载波资源上通过复用方式进行数据传输。
实施例四
一种非授权资源的传输装置，设置于第二传输节点，如图4所示，包括第二检测模块41和传输模块42，其中：
所述第二检测模块41，设置成在公共资源或者指定资源上进行检测；
所述传输模块42，设置成在所述第二检测模块检测到第一传输节点发送的指示信息时，根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输。
可选地，所述第一传输节点包括第一终端；
所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属第一基站，所述第一基站的相邻基站，在所述非授权载波资源上进行了空闲信道评估CCA检测但未竞争到非授权载波资源的其它终端。
可选地，所述公共资源位于非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
所述指定资源为位于非授权载波资源上的物理上行共享信道PUSCH资源。
可选地，所述第二传输节点包括所述第一终端所属的第一基站；
所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述传输模块判断所述第二检测模块接收到所述指示信息，确定所述第一传输节点竞争非授权载波资源成功，能够使用所述非授权载波资源进行数据传输；或者，
所述传输模块判断所述第二检测模块接收到所述指示信息且解析到所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输，所述传输模块广播通知同运营商的相邻基站使用所述非授权载波资源，在进行资源协商后，与所述同运营商的相邻基站下的终端在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第二传输节点包括所述第一终端所属的第一基站的相邻基站；
所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述传输模块判断所述第二检测模块接收到的指示信息中的运营商标识与自身相同，且所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输；所述传输模块与同运营商下其他基站进行资源协商，在进行资源协商后，与所述同运营商下其他基站在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第二传输节点包括在所述非授权载波资源上进行了CCA检测但未竞争到非授权载波资源的其它终端；
所述第二检测模块在公共资源或者指定资源上进行检测，包括：所述第二检测模块在所述公共资源或指定资源上进行盲检和接收所述指示信息，并对接收到的指示信息进行解析；
所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使 用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
所述传输模块如果判断所述指示信息中的小区标识与自身的小区标识相同，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输；或者，
所述传输模块如果判断所述指示信息中的小区标识与自身的小区标识不同，但运营商标识与自身的运营商标识相同且所述指示信息中包含同频复用指示标识，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输。
可选地，所述第二检测模块还设置成在不能正确解析指示信息时，放弃在所述公共资源或者指定资源上进行盲检，只在所述非授权载波的信道占用期内实时进行CCA检测；或者放弃在所述非授权载波的信道占用期内进行CCA检测。
可选地，所述传输模块在所述非授权载波资源上通过复用方式进行数据传输，包括：
所述传输模块在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置按照预调度信息进行数据传输。
要说明的是，由于本实施例提供的设备可以实现上述实施例三的方法，故其他详细操作可以参见实施例三的相应内容，在此不再赘述。
下面通过7个应用示例对上述实施例进行举例说明。
应用示例1
UE协助基站竞争非授权载波及数据传输的整体流程如图5所示。包括UE协助所属基站进行非授权载波资源的抢占，进而在成功竞争到资源后，通知周围基站和其它UE，以及进行上行传输的过程。包括以下步骤101～105：
步骤101，基站向UE发送上行调度授权(UL grant)，通知UE以下竞争信息：需要协助竞争的非授权载波号、子帧号、执行CCA的起始时刻位置、竞争非授权载波上的哪块资源、预调度信息；
可选地，该竞争信息中还可携带运营商标识和/或同频复用指示标识等， 以便UE进行上行频分复用传输。
步骤102，接收到基站发送的竞争信息的UE，在指定的位置执行CCA。
步骤103，当所述UE进行CCA检测到信道空闲时，立刻在事先与基站约定好的公共资源或指定资源上发送一个指示信息或是发送指示信息和数据。
步骤104，竞争成功的UE(即：已抢占到非授权载波的UE)所属的基站以及相邻的基站和未竞争成功的其它UE在公共资源或指定资源上进行检测和接收；
检测的目的是：对于未竞争成功的其它UE来说，为了获知是否可以和已抢占到非授权载波的UE一起复用竞争到的非授权载波。对于所述竞争成功的UE所属的基站或是相邻的基站来说，为了判断是否是下属UE抢占到非授权载波资源或是否可以使用非授权载波资源。也就是说，对于竞争成功的UE所属基站来说，检测的目的是为了获知下属UE是否成功抢占到指定的非授权载波资源；对于邻近同运营商基站，检测的目的是为了获知是否同频复用使能，从而通过频分复用一起使用竞争到的非授权载波资源进行数据传输；对于其它UE来说，检测的目的是为了检测是否是同小区的UE抢占到资源，或是同频复用使能下的同运营商小区中的UE抢占到资源，从而判断本节点是否能使用抢占到的非授权载波资源，即是否能进行多用户复用上行传输。
步骤105、对于竞争成功的UE所属的基站，在公共资源或指定资源上接收到所述指示信息，进一步解析指示信息的内容，如果检测出是下属UE发送的指示信息，则认为下属UE检测的非授权载波资源抢占成功并可用。如果解析出是下属UE发送的指示信息且同频复用标识使能，则所属基站需要通过X2口广播非授权载波可用信息给相邻的同运营商基站，并进行资源协商，本基站和相邻同运营商下基站中有数据发送的其它UE，在公共资源或指定资源后的子帧上按照协商好的资源进行上行数据传输，而所属基站和同运营商下基站则需要在非授权载波的占用时长内实时检测并接收上行数据。如果指示信息是SRS信号，则基站在获知信道可用的情况下，还需要根据SRS信号进行上行信道的测量，测量的结果可以用于本次数据传输或是为下一次数据传输做准备。如果竞争成功的UE在公共资源或指定资源上发送了指示 信息和一次上行数据，则所属基站在接收指示信息后，获知信道可用情况下，还要进行上行数据的接收。
对于UE侧，如果未竞争成功的UE检测到指示信息是同小区UE发送的则认为信道可用，根据预调度信息，在非授权载波上这些UE采用频分复用的方式进行数据传输。如果未竞争成功的UE检测到指示信息是同运营商下的UE发送的且同频指示使能，则这些UE可在之前协商好的资源位置上进行数据传输。且进行数据传输的起始位置为：在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置开始。
应用示例2
公共资源的时频划分结构如图6a、b所示，公共资源是以FBE(Frame Based Equipment，基于帧结构的设备)的LBT(Listen Before Talk，先听后说)为例示意其可能的时域位置。根据上述对公共资源的定义，其最大范围为执行CCA成功后的第一个完整符号到下一个子帧边界结束，即公共资源最大的范围不可超过两个子帧，最小范围为执行CCA成功后的一个完整的OFDM符号。
从图6a、b中的公共资源示意部分可以看出，在时域上公共资源是由一个或多个OFDM符号组成的，即公共资源时域上的最小单位为一个完整的OFDM符号。并且根据不同的CCA位置，公共资源的位置也随之改变，进一步执行CCA的位置是由基站确定的。
图6a和b中固定帧中最左边的子帧(用点填充区域表示)为LBT子帧，包括CCA和公共资源(用斜杠填充区域表示)，固定帧中其余9个子帧中，D表示下行子帧，S表示特殊子帧，U表示上行子帧。
如图6a所示，对于UE在一个子帧的起始位置开始执行CCA竞争的情况，如果UE执行CCA竞争到非授权载波资源的时刻不足一个完整的OFDM符号边界，则UE需要在该OFDM符号的剩余时域资源上发送一个占用信号，如指示信息，避免本***的其他UE或是异***(如Wi-Fi***)节点(STA)抢占该非授权载波。如果UE执行CCA竞争到非授权载波资源的时刻恰好是 一个完整OFDM符号的边界，对于上述两种情况，公共资源的起始位置都是从UE执行CCA竞争到资源后的第一个完整的OFDM符号起始位置开始，根据UE发送内容(指示信息或指示信息和数据)的大小而确定占用一个还是多个OFDM符号。
如图6b所示，公共资源也可以按照频域划分。其公共资源为成功执行CCA竞争到非授权载波资源后频域上占用预定带宽的资源或是由多个子载波构成的频域资源(比如但不限于为一个或多个PRB(Physical Resouce Block，物理资源块))，时域上最多可以连续占用到执行CCA子帧的下一个子帧结束。
公共资源主要是用于发送通知信号，从而使基站和未竞争成功的UE来公共资源上检测和接收该通知信号，以便获取非授权载波的占用情况，降低基站实时盲检带来的损耗。
应用示例3
图7为指定资源示意图，如图7所示，用于传输指示信息通知基站和其它UE的指定资源是根据UE执行CCA的位置而定的，指定资源总是在成功执行CCA后的第一个OFDM符号开始到本子帧边界。
对于UE执行CCA的位置在一个子帧的开始的情况，指定资源(如PUSCH)如图7a所示。如果执行CCA的位置在一个子帧的末尾，则指定资源为下一个子帧中的PUSCH资源，如图7b所示。也就是说，成功竞争到非授权载波资源的UE会在指定资源上发送一个指示信息或是指示信息和数据，用于通知基站和其它UE，哪个非授权载波已经被抢占。可选的，通知所属基站进行上行数据接收。同样，基站和其它UE也会在指定资源上去检测该指示信息。指定资源作用和公共资源的作用一样的，都是作为一个发送指示信息的传输载体。
应用示例4
本示例主要详细介绍执行CCA成功的UE发送的指示信息的生成过程。 这里主要介绍两种指示信息生成方式：第一种是通过修改LTE物理层协议中常用的基序列来生成所需的指示信息。第二种是定义UE发送的指示序列。
第一种通过修改基序列获得所需指示信息的过程如下：
对于UE侧竞争到非授权载波后，发送的指示信息可以包括：SRS(探测参考信号)、PSS/SSS(主同步序列/辅同步序列)和Preamble(前导)等，这些信号都是由基序列
Figure PCTCN2016076167-appb-000026
经过一定的处理而得到的。因此主要详述满足发送的序列中携带Cell ID(小区标识)、运营商标识和同频复用指示标识等标识的基序列
Figure PCTCN2016076167-appb-000027
生成过程。
基序列
Figure PCTCN2016076167-appb-000028
为UE侧发送指示信息的原始序列，其中有N个分组，u表示组号u∈{0,1,...,N-1}，v是组内的基序列号。序列组号u由下式来确定：
时隙ns内的序列组序号u由组跳转样式fgh(ns)和序列移位样式fss得到，即u＝(fgh(ns)+fss)modN，这里赋予fgh(ns)和fss新的生成方式，假如序列中需要携带Cell ID则原有的组跳转开关开启，在本例中表示小区标识指示开启，如下式所述：
Figure PCTCN2016076167-appb-000029
其中，伪随机序列c的初始化值是以Cell ID值来生成的，即为：
Figure PCTCN2016076167-appb-000030
其中
Figure PCTCN2016076167-appb-000031
为小区标识，
Figure PCTCN2016076167-appb-000032
为向下取整。
而进一步的，序列中需要额外携带运营商标识则可以按照下述公式来获得：
对于PUCCH，fss可以用Cell ID与N模得到，即为：
Figure PCTCN2016076167-appb-000033
其中
Figure PCTCN2016076167-appb-000034
为小区标识。
对于PUSCH，序列中可以携带Cell ID和运营商标识，所以fss可以由下式得到：
Figure PCTCN2016076167-appb-000035
其中Δss为运营商标识，Δss∈{0,1,...,m}，m为运营商个数，运营商标识可由基站获知。
对于SRS，
Figure PCTCN2016076167-appb-000036
其中
Figure PCTCN2016076167-appb-000037
为小区标识。
所述参数可以灵活配置，配置不同，指示序列中携带的信息则不同。进 一步的，如果发送的指示序列中需要携带同频指示标志(0或1)，可以用这个标识对生成的序列进行加扰而一个新的序列。
具体到本应用示例中，上述中N可选取30，这样可以沿用标准中取值，但不局限于此值。m按照国内常见的三大运营商而取值为3。方法一是在不改变原公式架构的基础上进行了替换，因此标准化工作量最小。
方法二：定义一个指示序列。具体过程如下：
假定UE ID集合中数目为q个，即{a0,…,aq-1}，Cell ID集合中数目为r个，即{b0,…,br-1}，运营商集合中数目为p个，即{c0,c1，…cp}。可选的，假定同频复用标识集合中包括0、1。根据这三或四个集合中的元素的不同排列组合，可得到q*r*p或q*r*p*2个序列。其中每个序列代表一种排列组合方式。例如：序列0标识UE ID＝a0，Cell ID＝b0，operator ID＝c0，同频复用标识0，依次类推。自定义序列的长度根据带宽大小而定。
q、r、p的取值不限，可选的p可取值为2。
上述两种方法，根据具体的指示信息中需要携带的内容不同而可以适当的进行修改。上述携带的信息仅为举例，在其他实施例中可以不拘泥于上述携带的信息。
应用示例5
本示例主要详述UE竞争到非授权载波资源后，发送一个上例中所述的指示信息通知基站和其他UE的过程，包括步骤501～503：
步骤501，对于UE侧，基站触发或是指定的UE在非授权载波上执行CCA检测操作；
这里，基站触发在非授权载波上参与竞争的UE包括在预定义的周期中参与非授权载波竞争的UE、收到UL grant的UE或是通过Paging(寻呼)消息触发的UE等。这些UE会在基站通知的CCA位置上进行检测，且对于不同的帧结构，执行CCA的位置和数目都不相同。对于FBE，执行CCA的位置可以在一个子帧的开始或是子帧结束位置。对于LBE(Load Based  Equipment，基于负载的设备)，执行CCA的位置在子帧内的位置是不确定的，并且CCA的数目也不定。这些都可以由基站侧来配置。
这里对于FBE来说，上述UE执行CCA的位置相同，所以会出现这些UE同时竞争上基站指定的非授权载波资源情况。而对于LBE，由于每个UE生成的随机回退值不同，每次只会出现一个UE最终成功竞争到指定的非授权载波。
步骤502，步骤501中竞争成功的UE，在公共资源或是指定资源上发送指示信息通知基站和其他UE，或是发送指示信息和UE自身的上行数据。
这里所述的公共资源或指定资源为示例2和示例3中介绍的资源，此处不再进行重复叙述。UE发送的指示信息可以是SRS，Preamble，PSS/SSS或指示标识等。可选的发送SRS信号，相应的序列生成方式参阅示例4。
举例说明竞争成功的UE在定义的公共资源或是指定资源上发送指示信息或是指示信息和数据。对于FBE结构，根据步骤501中的描述，可能会出现多个UE同时竞争到非授权载波的情况，针对此情况，这些UE在定义的公共资源或是指定资源上通过时分、频分或是码分的方式进行指示信息或是指示信息和数据的发送。对于LBE，每次执行CCA只会有一个UE成功竞争到资源，该UE可以在公共资源或指定资源上发送一个指示信息或是指示信息和自身的数据。
步骤503，第一基站(竞争成功的UE所属的基站)和邻近的基站以及未竞争成功的UE都在公共资源或是指定资源上检测和接收指示信息，本基站还要进行上行数据的接收。
第一基站在公共资源或是指定资源上收到该指示信息(可以是用于通知或是测量的指示信息)或是指示信息和数据，在进行解析的过程中，第一基站解码UE发送的数据失败，则第一基站只能通过接收到的指示信息可知下属UE已经成功竞争到的非授权载波。此时，第一基站有两种处理办法：第一种是进行下属UE的调度信息发送。为了让本小区内有数据发送的UE在竞争到的非授权载波资源上进行频分复用传输数据，UE侧需要在接收到基站发送的调度信息后，才能在相应的资源上进行上行传输。第二种是在UE执行CCA之前的第j个子帧已经下发了上行调度信息，UE竞争到资源的时刻在j+k (k≤4)子帧之前，第一基站在第j+k子帧上开始接收来自UE侧发送的数据。只要在公共资源或是指定资源上接收到非授权载波资源可用的UE都在j+k子帧上开始通过时分、频分或是码分的方式进行上行数据传输。
如果指示信息中携带的同频复用功能开启，即携带了同频复用指示标识，则第一基站需要通过X2口广播通知邻近同运营商下的其他小区可用的非授权载波资源，以及进行协商实现不同小区下UE的数据传输。如果同频复用功能不使能，只有本小区内UE可以通过复用方式进行数据的发送，进而第一基站则在占用信道时长内接收下属UE发送的上行数据。
此外，邻近的不同运营商基站收到该指示信息，即认为该非授权载波已经被占用，停止进行检测。
对于未竞争成功的UE，在公共资源或是指定资源上检测指示信息，解析其Cell ID判断是否是同一小区或是解析是否指示信息中携带了运营商标识和同频复用指示标识。如果未竞争成功UE解析出指示信息携带有与自身相同的Cell ID，则该UE认为特定的非授权载波可用，在公共资源或是指定资源后第一个子帧上或者在执行CCA检测到信道空闲的UE发送完自身数据后，那些能正确解析出信道可用的UE可以通过频分复用的方式进行上行数据传输。如果未竞争成功的UE解析出指示信息中携带的Cell ID与自身不同，但运营商标识一样且同频复用使能，则这些UE可以认为特定的非授权载波上资源可用，且按照约定在公共资源或是指定资源后第一个子帧上或者在执行CCA检测到信道空闲的UE发送完自身数据后，那些能正确解析出信道可用的UE可以通过频分复用的方式进行上行数据传输。如果未竞争成功的UE不能解析出指示信息中的Cell ID、运营商标识和同频复用指示标识，则这些UE认为信道不可用。
对于解析指示信息不正确的UE，可以按照下述方法处理：
第一种方法：放弃在公共资源或是指定资源上进行检测，但在信道占用期内实时进行信道检测。主要针对于在竞争到的非授权载波上进行数据传输的UE，数据提前传输完毕的情况，可以进一步提高信道资源利用效率。
信道占用期从执行CCA成功的UE发送占用信号开始计算。该UE在信道占用期内的公共资源或指定资源上可以进行一次数据传输，在信道占用期 内之后的非授权载波资源还可以进行数据传输。
第二种方法：直接在非授权载波占用期内放弃信道忙闲检测。这样做可能会造成很大的信道资源浪费。
应用示例6
图8为本示例竞争成功的UE在公共资源上发送SRS信号的具体过程示意图；
本示例中，执行CCA成功的UE发送的占用信号(如指示信息)一方面用于通知基站已成功抢占到特定的非授权载波，另一个方面用于基站进行上行信道的测量。
正如图8所示，在一个子帧开始的时刻具有非授权载波竞争资格的UE执行CCA检测，如果参与竞争的UE执行CCA成功，但CCA成功的时刻不足一个完整的OFDM符号边界，则可选地发送一个占用信号。如果竞争到的时刻恰好是一个完整的OFDM符号的边界，则可选的在CCA后的公共资源上通过频分或是码分的方式发送SRS信号。需要强调的是，这里发送的SRS信号不仅是起到通知基站占道情况，还用于告诉基站进行这些UE的上行信道质量测量，即告知基站测量的带宽多大、周期、哪个子帧等等，这样基站就会接收到来自竞争成功UE发送的用于通知占用的SRS信号，进一步测量每个UE到基站间信道状况，更好的给每个UE分配适当资源和MCS(Modulation and Coding Scheme，调制与编码策略)。
如果每个UE执行CCA的位置不同，假设有3个UE执行CCA，其中只有UE1执行CCA成功，并发送了对应的SRS信息；如图8所示，UE1竞争到资源，在公共资源的第一个OFDM符号81上发送指示信号。未竞争成功的UE2和UE3在公共资源或指定资源上接收并检测UE1发送的占用信号，比如图8中，UE2和UE3在公共资源上的第9个符号82上收到UE1发送的指示信息，获知载波被占用。如果UE2接收并检测到UE1发送的信号中携带的Cell ID和自身相同，则UE2在公共资源上发送自身SRS信号，即通知基站测量它与基站间的信道状况。而UE3检测到的Cell ID和自身不同，但检 测到占用信号中携带了同频复用指示标识且同频复用使能，即UE1和UE3是同运营商下的不同小区的UE，则UE3同样在公共资源上也发送自身的SRS信号。反之，如果UE2和UE3不能正确解析占用信号，则UE2和UE3要么放弃接收，认为该载波不可用，停止检测。要么在非授权载波占用期内一直进行检测信道的空闲状况。
此时一直在公共资源上接收并检测的基站就可以知道其它UE的信道状况，便于根据上报的信道测量信息，下发适当的MCS等级，提高传输质量。
为了避免异***的站点在基站和其他UE检测接收指示信息的时间内进行资源抢占，竞争到的UE可以一直重复发送占用信号。
应用示例7
图9为本示例采用D2D机制实现UE通知其他节点的示意图。
采用D2D机制，假定基站侧事先会给所有UE在非授权载波上指定对应的资源，第一基站和邻近基站之间有较好的X2接口且同步较好，未竞争成功的UE在检测到载波忙时就立刻开始在D2D PSSCH(共享信道)上进行检测。
如图9所示，在非授权载波上所有参与竞争的UE中UE1在t时刻成功竞争到非授权载波，此时，UE1将立刻在授权载波上PSSCH的对应的资源上发送事先约定的指示信息，这样，其它UE(如UE2、UE3)就能在PSSCH上收到该序列，从而停止对此载波进行CCA检测。与此同时，本基站和邻基站也会在PSSCH资源上检测约定的指示信息。这样以来，UE1就将已成功抢占到该非授权载波资源的消息通知给其他基站和UE。与此同时，竞争成功的UE1还需要在非授权载波上发送一个用于表示信道被占用的指示信息，避免其他节点进行抢占。
需要说明的是，D2D中的PSSCH资源在每个子帧以及每个时隙都是可以灵活配置的。
这样做，也可以解决多个UE同时抢占到同一个非授权载波的情况。因为在PSSCH每个UE都会有自己独立的资源，因此不会产生冲突，大大增加 了基站的正确解码效率，从而使基站获取可用的非授权载波信息。
实施例五、一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述实施例一和实施例三的方法。
工业实用性
本发明实施例提供了一种非授权资源上的传输方法和装置，UE在非授权频谱上协助基站抢占非授权载波后，及时快速的通知所属基站和/或邻近基站以及参与竞争却未竞争成功的UE某非授权载波资源是否可用的情况。

Claims (34)

  1. 一种非授权资源的传输方法，包括：
    第一传输节点在指定的非授权载波资源上执行空闲信道评估CCA检测；
    所述第一传输节点当检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息，或者发送指示信息和进行一次数据传输。
  2. 根据权利要求1所述的方法，其中，
    所述指示信息用于通知所述非授权载波资源已占用。
  3. 根据权利要求1所述的方法，其中，
    所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号。
  4. 根据权利要求3所述的方法，其中，
    所述公共资源在时域上包括以下任一资源：
    执行CCA成功后的第一个完整的OFDM符号；
    执行CCA成功后的从第一个完整的OFDM符号开始到执行CCA的子帧边界中的OFDM符号；
    执行CCA成功后的从第一个完整的OFDM符号开始到下一个子帧边界中的OFDM符号；所述公共资源在频域上包括以下任一资源：
    整个频域资源；
    整个频域上占用预定带宽的资源；
    由多个子载波构成的频域资源。
  5. 根据权利要求1所述的方法，其中，
    所述指定资源位于所述非授权载波资源上，为执行CCA成功后的第一个OFDM符号开始到当前子帧结束，或者执行CCA所在子帧后的第一个子帧。
  6. 根据权利要求5所述的方法，其中，
    所述指定资源为物理上行共享信道PUSCH资源。
  7. 根据权利要求2所述的方法，其中，
    所述指示信息还用于供第二传输节点判断所述第二传输节点是否能使用所述非授权载波资源；
    所述第一传输节点包括第一终端；
    所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属的第一基站，所述第一基站的相邻基站，在所述指定的非授权载波资源上进行了CCA检测但未竞争到所述非授权载波资源的其它终端；
    所述指示信息包括以下任一信息：信道探测参考信号SRS、主辅同步序列PSS/SSS、前导序列Preamble。
  8. 根据权利要求7所述的方法，其中，
    所述指示信息包含以下标识中的一种或多种：小区标识、运营商标识、同频复用指示标识。
  9. 根据权利要求8所述的方法，其中，
    所述指示信息由基序列得到，所述基序列采用以下方法得到：
    基序列
    Figure PCTCN2016076167-appb-100001
    其中u表示序列组序号，u∈{0,1,...,N-1}，N为分组数，v是组内的基序列号，时隙ns内的序列组序号u由下式得到：
    u＝(fgh(ns)+fss)modN，其中fgh(ns)为组跳转样式，fss为序列移位样式；
    所述fgh(ns)采用下式得到：
    Figure PCTCN2016076167-appb-100002
    其中c为伪随机序列，所述伪随机序列的初始化值采用下式得到：
    Figure PCTCN2016076167-appb-100003
    其中
    Figure PCTCN2016076167-appb-100004
    为小区标识；
    Figure PCTCN2016076167-appb-100005
    为向下取整；
    所述fss采用以下方法得到：
    对于物理上行控制信道PUCCH，
    Figure PCTCN2016076167-appb-100006
    对于物理上行共享信道PUSCH，
    Figure PCTCN2016076167-appb-100007
    其中Δss为运营商标识，Δss∈{0,1,...,m}，m为运营商个数；
    对于信道探测参考信号SRS，
    Figure PCTCN2016076167-appb-100008
  10. 根据权利要求1所述的方法，还包括：
    所述第一传输节点在授权载波上的设备对设备D2D资源上发送所述指示信息。
  11. 根据权利要求1所述的方法，其中：
    执行CCA的位置包括以下任一位置：子帧的开始位置、子帧的结束位置、配置的位置。
  12. 一种非授权资源的传输方法，包括：
    第二传输节点在公共资源或者指定资源上进行检测；
    所述第二传输节点当检测到第一传输节点发送的指示信息时，根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输。
  13. 根据权利要求12所述的方法，其中，
    所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
    所述指定资源为位于所述非授权载波资源上的物理上行共享信道PUSCH资源。
  14. 根据权利要求12或13所述的方法，其中，
    所述第一传输节点包括第一终端；
    所述第二传输节点包括所述第一终端所属的第一基站；
    所述根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
    所述第一基站接收到所述指示信息，确定所述第一传输节点竞争非授权载波资源成功，能够使用所述非授权载波资源进行数据传输；
    或者，
    所述第一基站接收到所述指示信息，且所述指示信息中包含同频复用指示标识，则所述第一基站确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输，所述第一基站广播通知同运营商的相邻基站使用所述非授权载波资源，在进行资源协商后，所述第一基站与所述同运营商的相邻 基站下的终端在所述非授权载波资源上通过复用方式进行数据传输。
  15. 根据权利要求12或13所述的方法，其中，
    所述第一传输节点包括第一终端；
    所述第二传输节点包括所述第一终端所属的第一基站的相邻基站；
    所述根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
    所述相邻基站接收到所述指示信息，判断所述指示信息中的运营商标识与自身相同，且所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输；所述相邻基站与同运营商下其他基站进行资源协商，在进行资源协商后，与所述同运营商下其他基站在所述非授权载波资源上通过复用方式进行数据传输。
  16. 根据权利要求12或13所述的方法，其中，
    所述第一传输节点包括第一终端；
    所述第二传输节点包括在所述非授权载波资源上进行了CCA检测但未竞争到非授权载波资源的第二终端；
    所述第二传输节点在公共资源或者指定资源上进行检测，包括：所述第二终端在所述公共资源或指定资源上进行盲检和接收所述指示信息，并对接收到的指示信息进行解析；
    所述根据所述指示信息内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
    所述第二终端如果判断所述指示信息中的小区标识与自身的小区标识相同，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输；或者，
    所述第二终端如果判断所述指示信息中的小区标识与自身的小区标识不同，但运营商标识与自身的运营商标识相同且所述指示信息中包含同频复用指示标识，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输。
  17. 根据权利要求16所述的方法，还包括：当所述第二传输节点不能正确解析指示信息，则放弃在所述公共资源或者指定资源上进行盲检，只在所述非授权载波的信道占用期内实时进行CCA检测；或者放弃在所述非授权载波的信道占用期内进行CCA检测。
  18. 根据权利要求16所述的方法，其中，
    所述第二终端在所述非授权载波资源上通过复用方式进行数据传输，包括：
    所述第二终端在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置按照预调度信息进行数据传输。
  19. 根据权利要求16所述的方法，其中，
    所述在非授权载波资源上通过复用方式进行数据传输包括：根据预调度信息中指示的资源位置，或者，根据通过复用方式进行数据传输的终端间自主协商好的资源位置，在所述非授权载波资源上通过复用方式进行数据传输。
  20. 一种非授权资源的传输装置，设置于第一传输节点，包括：
    第一检测模块，设置成在指定的非授权载波资源上执行空闲信道评估CCA检测；
    发送模块，设置成在所述第一检测模块检测到所述非授权载波资源空闲时，在公共资源或者指定资源上发送指示信息，或者发送指示信息和进行一次数据传输。
  21. 根据权利要求20所述的装置，其中，
    所述指示信息用于通知所述非授权载波资源已占用。
  22. 根据权利要求20所述的装置，其中，
    所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
    所述指定资源位于所述非授权载波资源上，为执行CCA成功后的第一个OFDM符号开始到当前子帧结束，或者执行CCA所在子帧后的第一个子帧。
  23. 根据权利要求21所述的装置，其中，
    所述指示信息还用于供第二传输节点判断所述第二传输节点是否能使用所述非授权载波资源；
    所述第一传输节点包括第一终端；
    所述第二传输节点包括以下节点中的一种或多种：所述第一终端所属的第一基站，所述第一基站的相邻基站，在所述指定的非授权载波资源上进行了CCA检测但未竞争到所述非授权载波资源的其它终端；所述指示信息包括以下任一信息：信道探测参考信号SRS、主辅同步序列PSS/SSS、前导序列Preamble。
  24. 根据权利要求23所述的装置，其中，
    所述指示信息包含以下标识中的一种或多种：小区标识、运营商标识、同频复用指示标识。
  25. 根据权利要求23所述的装置，其中，还包括：
    指示信息计算模块，设置成采用基序列得到所述指示信息，所述指示信息计算模块采用以下方式计算得到所述基序列
    Figure PCTCN2016076167-appb-100009
    其中u表示序列组序号，u∈{0,1,...,N-1}，N为分组数，v是组内的基序列号，时隙ns内的序列组序号u由下式得到：
    u＝(fgh(ns)+fss)modN，其中fgh(ns)为组跳转样式，fss为序列移位样式；
    所述fgh(ns)采用下式得到：
    Figure PCTCN2016076167-appb-100010
    其中c为伪随机序列，所述伪随机序列的初始化值采用下式得到：
    Figure PCTCN2016076167-appb-100011
    其中
    Figure PCTCN2016076167-appb-100012
    为小区标识；
    Figure PCTCN2016076167-appb-100013
    为向下取整；
    所述fss采用以下方法得到：
    对于物理上行控制信道PUCCH，
    Figure PCTCN2016076167-appb-100014
    对于物理上行共享信道PUSCH，
    Figure PCTCN2016076167-appb-100015
    其中Δss为运营商标识，Δss∈{0,1,...,m}，m为运营商个数；
    对于信道探测参考信号SRS，
    Figure PCTCN2016076167-appb-100016
  26. 根据权利要求20所述的装置，其中，
    所述发送模块还设置成在授权载波上的设备对设备D2D资源上发送所述指示信息。
  27. 根据权利要求20所述的装置，其中，
    所述第一检测模块执行CCA的位置包括以下任一位置：子帧的开始位置、子帧的结束位置、配置的位置。
  28. 一种非授权资源的传输装置，设置于第二传输节点，包括：
    第二检测模块，设置成在公共资源或者指定资源上进行检测；
    传输模块，设置成在所述第二检测模块检测到第一传输节点发送的指示信息时，根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输。
  29. 根据权利要求28所述的装置，其中，
    所述公共资源位于所述非授权载波资源上，最大范围为两个子帧，最小范围为一个完整的正交频分复用OFDM符号；
    所述指定资源为位于所述非授权载波资源上的物理上行共享信道PUSCH资源。
  30. 根据权利要求28或29所述的装置，其中，
    所述第一传输节点包括第一终端；
    所述第二传输节点包括所述第一终端所属的第一基站；
    所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
    所述传输模块判断所述第二检测模块接收到所述指示信息，确定所述第一传输节点竞争非授权载波资源成功，能够使用所述非授权载波资源进行数据传输；或者，
    所述传输模块判断所述第二检测模块接收到所述指示信息且解析到所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输，所述传输模块广播通知同运营商的相邻 基站使用所述非授权载波资源，在进行资源协商后，与所述同运营商的相邻基站下的终端在所述非授权载波资源上通过复用方式进行数据传输。
  31. 根据权利要求28或29所述的装置，其中，
    所述第一传输节点包括第一终端；
    所述第二传输节点包括所述第一终端所属的第一基站的相邻基站；
    所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
    所述传输模块判断所述第二检测模块接收到的指示信息中的运营商标识与自身相同，且所述指示信息中包含同频复用指示标识，则确定能够使用所述第一传输节点竞争到的非授权载波资源进行数据传输；所述传输模块与同运营商下其他基站进行资源协商，在进行资源协商后，与所述同运营商下其他基站在所述非授权载波资源上通过复用方式进行数据传输。
  32. 根据权利要求28或29所述的装置，其中，
    所述第一传输节点包括第一终端；
    所述第二传输节点包括在所述非授权载波资源上进行了CCA检测但未竞争到所述非授权载波资源的其它终端；
    所述第二检测模块在公共资源或者指定资源上进行检测，包括：所述第二检测模块在所述公共资源或指定资源上进行盲检和接收所述指示信息，并对接收到的指示信息进行解析；
    所述传输模块根据所述指示信息的内容判断所述第二传输节点是否能使用所述第一传输节点竞争到的非授权载波资源进行数据传输，包括：
    所述传输模块如果判断所述指示信息中的小区标识与自身的小区标识相同，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输；或者，
    所述传输模块如果判断所述指示信息中的小区标识与自身的小区标识不同，但运营商标识与自身的运营商标识相同且所述指示信息中包含同频复用指示标识，则确定能够复用所述第一传输节点竞争到的非授权载波资源，在所述非授权载波资源上通过复用方式进行数据传输。
  33. 根据权利要求32所述的装置，其中
    所述第二检测模块还设置成在不能正确解析指示信息时，放弃在所述公共资源或者指定资源上进行盲检，只在所述非授权载波的信道占用期内实时进行CCA检测；或者放弃在所述非授权载波的信道占用期内进行CCA检测。
  34. 根据权利要求32所述的装置，其中，
    所述传输模块在所述非授权载波资源上通过复用方式进行数据传输，包括：
    所述传输模块在公共资源或指定资源后的第一个完整的OFDM符号或是第一个子帧位置按照预调度信息进行数据传输。
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