WO2016145971A1 - 一种载波复用的方法和站点 - Google Patents

一种载波复用的方法和站点 Download PDF

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Publication number
WO2016145971A1
WO2016145971A1 PCT/CN2016/074348 CN2016074348W WO2016145971A1 WO 2016145971 A1 WO2016145971 A1 WO 2016145971A1 CN 2016074348 W CN2016074348 W CN 2016074348W WO 2016145971 A1 WO2016145971 A1 WO 2016145971A1
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Prior art keywords
dci
station
subframe
ecca
cca
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PCT/CN2016/074348
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English (en)
French (fr)
Inventor
苟伟
彭佛才
李新彩
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中兴通讯股份有限公司
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Publication of WO2016145971A1 publication Critical patent/WO2016145971A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to, but is not limited to, mobile wireless communication technologies, and more particularly to a method and a site for carrier multiplexing.
  • LTE Release 13 protocol LTE Rel-13
  • LTE Rel-13 LTE Release 13 protocol
  • the unlicensed carrier that is, the unlicensed spectrum
  • the relevant regulations (radio control) of the government department such as the National Radio Management Committee
  • the current 5 GHz band is an unlicensed carrier.
  • the use of the existing unlicensed carriers in the LTE system will greatly enhance the potential spectrum resources of the LTE system, and the spectrum cost of the LTE system can be made lower.
  • a main feature of the existing LTE system is the frequency reuse of neighboring cells, thereby improving spectrum efficiency, but the frequency reuse in the prior art is implemented in a licensed frequency band exclusive to an operator, and There is no need to consider interference with cells of other operators.
  • the LTE system When the LTE system is deployed in an unlicensed carrier, the carrier is not authorized and does not belong to an exclusive use by an operator. Instead, it is used by all operators and different systems (such as LTE system and wireless local area network (Wireless local area network). Shared between Local Area Networks (WLAN) systems).
  • WLAN Local Area Networks
  • the LTE system if it operates in an unlicensed carrier, it needs to support the Listen Before Talk (LBT) mechanism.
  • LBT Listen Before Talk
  • FBE Frame Based Equipment
  • LBE Load Based Equipment
  • the maximum channel occupancy time for the FBE mode and the LBE mode is 10 ms and 13 ms, respectively.
  • ETSI European Telecommunications Standards Institute
  • the LBT mechanism is referred to as the “listen before listening” mechanism.
  • the unlicensed carrier when a site plans to use an unlicensed carrier, it should first monitor whether other sites occupy the unlicensed carrier, and it can be used when no other site is occupied.
  • the unlicensed carrier may be a device that can use an unlicensed carrier, such as a base station (Node B), an evolved base station (eNode B), a home base station (Home Node B), a relay station (RN), and a user equipment (User Equipment, UE).
  • This mechanism is primarily intended to avoid: Sites that plan to use unlicensed carriers, once directly using unlicensed carriers, will interfere with other nearby sites that are using unlicensed carriers.
  • the unlicensed carrier can be used when the station that wants to use the unlicensed carrier monitors that the unlicensed carrier is not occupied by other stations.
  • the utilization rate of the unlicensed carrier is low.
  • the embodiments of the present invention provide a carrier multiplexing method and a site, which can implement unmultiplexed carriers occupied by a site to be multiplexed between different sites, and improve utilization of unlicensed carriers.
  • An embodiment of the present invention provides a method for carrier multiplexing, where the method includes:
  • the site acquires preset information sent by other sites, where the preset information includes at least one of the following information: multiplexing condition information of frequency resources occupied by the other sites, and frequency resources occupied by the other sites; The multiplexing mode information, the frequency resource information occupied by the other sites, the occupation time information of the frequency resources occupied by the other sites, and the operator information to which the other sites belong;
  • the station multiplexes the frequency resources occupied by the other stations according to the preset information.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all bits agreed in the format of the first DCI; or
  • the preset information is carried by the signaling, and the signaling is sent by a Physical Downlink Shared Channel (PDSCH), and the signaling is scheduled by the second DCI.
  • PDSCH Physical Downlink Shared Channel
  • the preset information sent by the site to other sites includes:
  • the station acquires preset information sent by other stations according to the received signal sent by the other station using the authorized carrier.
  • the station obtains preset information sent by other stations according to the received signal sent by the other station using the authorized carrier, including:
  • the station acquires the first DCI or the foregoing by detecting a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in the signal in the licensed carrier.
  • the second DCI is used to descramble the first DCI or the second DCI by using a preset Radio Network Temporary Identifier (RNTI), and the first DCI obtained by descrambling or the second DCI obtained by descrambling Obtaining the preset information; or,
  • RNTI Radio Network Temporary Identifier
  • the station acquires the first DCI or by detecting a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in the signal in the authorized carrier. Decoding the first DCI or the second DCI by using the preset RNTI, and acquiring the preset information according to the first DCI obtained by the descrambling or the second DCI obtained by the descrambling.
  • ePDCCH enhanced physical downlink control channel
  • the method before the acquiring the preset information sent by the other site, the method further includes:
  • the station performs a Clear Channel Assessment (CCA) or an Enhanced Clear Channel Assessment (eCCA);
  • CCA Clear Channel Assessment
  • eCCA Enhanced Clear Channel Assessment
  • the station When the station performs CCA or eCCA busy, the station receives a signal that includes the preset information sent by the other station using an unlicensed carrier;
  • the preset information sent by the site to other sites includes:
  • the station acquires the preset information according to the received signal in the unlicensed carrier.
  • the obtaining, by the station, the preset information according to the received signal in the unlicensed carrier includes:
  • the station acquires the first DCI or the second DCI by detecting a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in the signal in the unlicensed carrier, Des scrambling the first DCI or the second DCI by using a preset radio network temporary identifier (RNTI), and acquiring the preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling; or
  • PDCCH physical downlink control channel
  • RNTI radio network temporary identifier
  • the station acquires the first DCI or the second DCI by detecting a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in a signal in the unlicensed carrier.
  • ePDCCH enhanced physical downlink control channel
  • RNTI radio network temporary identifier
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the format of the first DCI or the second DCI is any one of DCI formats included in the Long Term Evolution System Release 12 Protocol (LTE Rel-12); or
  • the format of the first DCI or the second DCI is any one of the newly introduced DCI formats in the LTE system.
  • the embodiment of the invention further provides a method for carrier multiplexing, the method comprising:
  • the station performs a Clear Channel Assessment (CCA) or an Extended Clear Channel Assessment (eCCA);
  • CCA Clear Channel Assessment
  • eCCA Extended Clear Channel Assessment
  • the site After the site performs CCA or eCCA success and obtains the use right of the unlicensed carrier, the site sends preset information;
  • the preset information includes at least one of the following: the multiplexing condition information of the frequency resource occupied by the station, the multiplexing mode information of the frequency resource occupied by the station, and the frequency resource information occupied by the station, The occupation time information of the frequency resource occupied by the site, and the operator information to which the site belongs.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by signaling, and the signaling is sent through a physical downlink shared channel (PDSCH), and the signaling is scheduled by second downlink control information (DCI).
  • PDSCH physical downlink shared channel
  • DCI second downlink control information
  • the first DCI or the second DCI is carried by a subframe in which the station performs CCA or eCCA success; or
  • the first DCI or the second DCI is carried by a subframe that is preempted by the station after performing a CCA or eCCA successful subframe.
  • the sending the preset information by the station includes:
  • the station transmits the first DCI or the second DCI using a common search space or an agreed search space in an ePDCCH in a pre-empted subframe after the station performs a CCA or eCCA successful subframe.
  • the first DCI or the second DCI is carried by a subframe in an authorized carrier corresponding to a time when the station performs CCA or eCCA successful subframes; or
  • the first DCI or the second DCI is carried by a subframe in an authorized carrier corresponding to a time of a subframe that is preempted by a subframe after the station performs CCA or eCCA success.
  • the sending the preset information by the station includes:
  • ePDCCH enhanced physical downlink control channel
  • the station Sending, by the station, the first DCI by using a common search space or an agreed search space in a PDCCH in a subframe in a subframe corresponding to a time of a subframe that is preempted after the station performs CCA or eCCA success. Or the second DCI; or,
  • the first DCI or the second DCI is scrambled by the station using a preset Radio Network Temporary Identity (RNTI).
  • RNTI Radio Network Temporary Identity
  • the preset RNTI includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the format of the first DCI or the second DCI is any one of DCI formats included in the Long Term Evolution System Release 12 Protocol (LTE Rel-12); or
  • the format of the first DCI or the second DCI is any one of the newly introduced DCI formats in the LTE system.
  • An embodiment of the present invention provides a site, where the site includes:
  • an acquiring unit configured to: acquire preset information sent by another station, where the preset information includes at least one of the following information: multiplexing condition information of frequency resources occupied by the other stations, and the other The multiplexing mode information of the frequency resources occupied by the site, the other sites The occupied frequency resource information, the occupied duration information of the frequency resources occupied by the other stations, and the operator information to which the other stations belong;
  • the multiplexing unit is configured to: multiplex the frequency resources occupied by the other stations according to the preset information acquired by the acquiring unit.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by signaling, and the signaling is sent by a physical downlink shared channel (PDSCH), and the signaling is scheduled by a second DCI.
  • PDSCH physical downlink shared channel
  • the obtaining unit is configured to:
  • the obtaining unit is configured to:
  • the first DCI or the second DCI by detecting a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in the signal in the licensed carrier, using a preset Decoding the first DCI or the second DCI by using a radio network temporary identifier (RNTI), and acquiring the preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling; or
  • PDCCH physical downlink control channel
  • RNTI radio network temporary identifier
  • the preset radio network temporary identifier descrambles the first DCI or the second DCI, and acquires the preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling.
  • the site further includes:
  • An evaluation unit configured to: perform a clear channel assessment (CCA) or an extended idle channel assessment (eCCA) before the acquiring unit acquires preset information sent by other stations;
  • CCA clear channel assessment
  • eCCA extended idle channel assessment
  • a receiving unit configured to: when the evaluation unit performs CCA or eCCA busy, receive a signal that includes the preset information that is sent by the other station by using an unlicensed carrier;
  • the acquiring unit is configured to: acquire the preset information according to a signal in the unlicensed carrier received by the receiving unit.
  • the obtaining unit is configured to:
  • the radio network temporary identifier descrambles the first DCI or the second DCI, and acquires the preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling; or
  • the preset radio network temporary identifier descrambles the first DCI or the second DCI, and acquires the preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling.
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the format of the first DCI or the second DCI is any one of DCI formats included in the Long Term Evolution System Release 12 Protocol (LTE Rel-12); or
  • the format of the first DCI or the second DCI is any one of the newly introduced DCI formats in the LTE system.
  • An embodiment of the present invention provides a site, where the site includes:
  • An evaluation unit configured to: perform a clear channel assessment (CCA) or an extended idle channel assessment (eCCA);
  • a sending unit configured to: after the evaluating unit performs CCA or eCCA success, obtains the use right of the unlicensed carrier, and sends preset information;
  • the preset information includes at least one of the following information: a frequency occupied by the site
  • the multiplexing condition information of the resource the multiplexing mode information of the frequency resource occupied by the site, the frequency resource information occupied by the site, the occupation time information of the frequency resource occupied by the site, and the operator information to which the site belongs.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by signaling, and the signaling is sent by a physical downlink shared channel (PDSCH), and the signaling is scheduled by a second DCI.
  • PDSCH physical downlink shared channel
  • the first DCI or the second DCI is carried by a subframe in which the station performs CCA or eCCA success; or
  • the first DCI or the second DCI is carried by a subframe that is preempted by the station after performing a CCA or eCCA successful subframe.
  • the sending unit is configured to:
  • the first DCI or the second DCI is transmitted using a common search space or an agreed search space in an ePDCCH in a pre-empted subframe after the station performs a CCA or eCCA successful subframe.
  • the first DCI or the second DCI is carried by a subframe in an authorized carrier corresponding to a time when the station performs CCA or eCCA successful subframes; or
  • the first DCI or the second DCI is carried by a subframe in an authorized carrier corresponding to a time of a subframe that is preempted by a subframe after the station performs CCA or eCCA success.
  • the sending unit is configured to:
  • the second DCI Transmitting the first DCI or using a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in a subframe corresponding to a time at which the station performs CCA or eCCA success.
  • ePDCCH enhanced physical downlink control channel
  • the first DCI or the second DCI is scrambled by the sending unit by using a preset radio network temporary identifier (RNTI).
  • RNTI radio network temporary identifier
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the format of the first DCI or the second DCI is any one of DCI formats included in the Long Term Evolution System Release 12 Protocol (LTE Rel-12); or
  • the format of the first DCI or the second DCI is any one of the newly introduced DCI formats in the LTE system.
  • An embodiment of the present invention provides an information sending method, where the method includes:
  • the station After the station performs the Clear Channel Assessment (CCA) or the Extended Clear Channel Assessment (eCCA) successfully, and obtains the usage right of the unlicensed carrier, the station determines the non-complete orthogonality in the subframe in which the station performs CCA or eCCA success. Whether a reserved signal can be transmitted on an Orthogonal Frequency Division Multiplexing (OFDM) symbol;
  • OFDM Orthogonal Frequency Division Multiplexing
  • the station transmits a reservation signal on the non-complete OFDM symbol when the station determines to be able to transmit;
  • the station When the station determines that the station is unable to transmit, the station sends a preset for notifying other stations to adjust the automatic gain control (AGC) in the first complete OFDM symbol after the non-complete OFDM symbol. sequence.
  • AGC automatic gain control
  • the determining, by the station, whether the reserved signal can be sent on the non-complete OFDM symbol in the subframe in which the CCA or the eCCA is successful includes:
  • the station determines that the reservation signal cannot be sent;
  • the station determines that the reservation signal can be sent.
  • An embodiment of the present invention provides a data transmission method, where the method includes:
  • the station performs CCA or eCCA (CCA/eCCA) on the unlicensed carrier according to a predefined or semi-statically adjusted frame period; wherein the location where the station starts performing CCA/eCCA is located in the first subframe within the frame period From any point in time after the time point N;
  • the station transmits a reserved signal in a subframe in which a CCA/eCCA is performed or a time slot in which a CCA/eCCA is performed, or transmits data in a complete OFDM symbol in the remaining time region, Or transmitting data from the next subframe of the subframe in which the CCA/eCCA is performed or the next slot of the slot in which the CCA/eCCA is performed.
  • An embodiment of the present invention provides a method for solving a fair access unlicensed carrier, where the method includes:
  • Different operators' sites use different starting positions for performing CCA/eCCA in the frame period. And the starting positions of the stations of different operators are alternated, appearing before each other.
  • the method further comprises: setting a fixed time range for the CCA/eCCA in the frame period, in which each operator configures or sets the starting position of the site to perform the CCA/eCCA.
  • the method further includes:
  • the operator configures the starting location of the CCA/eCCA for the site through operation and maintenance management; or
  • the operator's site When setting the starting position of the CCA/eCCA, the operator's site first receives the CCA/eCCA location information configured in the sites of other neighboring operators, and then determines its own CCA/ according to the principle of alternating and appearing before each other.
  • the eCCA location wherein the location information is a series of CCA/eCCA locations describing the site in the time direction.
  • the causing the starting positions of the stations of different operators to alternate before appearing with each other means:
  • the site acquires preset information sent by other sites; wherein the preset information includes at least one of the following information: the other The multiplexing condition information of the frequency resource occupied by the site, the multiplexing mode information of the frequency resource occupied by the other site, the frequency resource information occupied by the other site, the occupation time information of the frequency resource occupied by the other site, and the other Carrier information to which the site belongs; the site reuses the frequency resources occupied by the other sites according to preset information.
  • the site reuses the frequency resources occupied by the other sites according to preset information.
  • FIG. 1 is a schematic flowchart of a method for carrier multiplexing according to an embodiment of the present invention
  • FIG. 2 is another schematic flowchart of a method for carrier multiplexing according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram 1 of a station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram 2 of a station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram 3 of a station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a data transmission method according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a specific implementation method for solving a fair access unlicensed carrier according to an embodiment of the present invention.
  • the station in the embodiment of the present invention may be a base station (Node B), an evolved base station (eNode B), a home base station (Home Node B), a relay station (Relay Node, RN), a user equipment (User Equipment, UE), etc.
  • Node B a base station
  • eNode B evolved base station
  • Home Node B home base station
  • Relay Node, RN relay station
  • User Equipment User Equipment
  • Clear Channel Assessment or extended clear channel assessment (eCCA) means that in a wireless communication system, when a station needs to transmit data on a certain carrier, it first receives on this carrier. If, after a given time, no other station is found to send data on this carrier, it starts to transmit (that is, the CCA is successfully executed, and the right to use the carrier is obtained); if other stations are found to be transmitting data, the random avoidance is performed. Retry the process again after a while. The method can effectively avoid collisions on the wireless channel, which is also called Carrier Sense Multiple Access with Conflict Avoidance (CSMA/CA).
  • CSMA/CA Carrier Sense Multiple Access with Conflict Avoidance
  • An embodiment of the present invention provides a method for carrier multiplexing, where a station is based on a receiving end, as shown in FIG. 1 , the method includes the following steps:
  • Step 101 The site acquires preset information sent by other sites.
  • the preset information includes at least one of the following information: multiplexing condition information of the frequency resource occupied by the other station, multiplexing mode information of the frequency resource occupied by the other station, and frequency resource information occupied by the other station.
  • the multiplexing condition information of the frequency resources occupied by other stations is a resource multiplexing condition set by the other stations.
  • the multiplexing condition of the frequency resources occupied by other stations may include: the other stations support neighboring site resource multiplexing of any operator under any system (for example, an LTE system or a wireless local area network WLAN system); or, the other The site supports neighboring site resource multiplexing of any operator under the same system (for example, an LTE system); or the other site supports neighboring site resource multiplexing under the same system belonging to the same operator; or, the other The site supports neighbor site resource reuse under any system belonging to the same carrier; or the other site is set to not support neighbor site resource reuse.
  • the multiplexing manner of the frequency resources occupied by the other stations may include: frequency division multiplexing; time division multiplexing; code division multiplexing.
  • the frequency resource information occupied by the other station includes: channel information occupied by the other station (for example, the station occupies one channel of the unlicensed carrier 5 GHz), and the duration information of the other station occupying the frequency resource (for example, the station is in the LBE mode) Take up one channel for 11ms).
  • the duration information of the frequency resources occupied by the other stations refers to the duration information of the frequency resources occupied by the other stations.
  • the carrier information to which the other sites belong may be applied in accordance with the country or region.
  • the description of the operator information can be divided into: regional and / or national identification (for example, the mainland China logo is +86) and the identification (such as number) in the region and / or country; can also be directly set for the operator The only logo in the world.
  • the preset information sent by a site needs to include the carrier information to which the site belongs, but in some cases. In this case, the preset information sent by the site may not include the operator information to which the site belongs. In this case, the preset information needs to include the foregoing optional other information.
  • a foreseeable scenario is: when in a certain country or through standardized methods, If the authorized carrier allows the neighboring site to use the multiplexed site and is not limited to whether the contiguous site is the same carrier, the preset information sent by the site may not include the carrier information to which the site belongs, and only the foregoing optional other Information can be. If the site that is restricted to the same carrier by the neighboring site can be reused, the preset information sent by the site needs to include at least the carrier information to which the site belongs.
  • Step 102 The station reuses frequency resources occupied by the other stations according to preset information.
  • the preset information includes: multiplexing condition information of frequency resources occupied by the other station and operator information to which the other station belongs, where the other The multiplexing condition information of the frequency resource occupied by the site is specifically: the other site supports the neighboring site resource reuse of any operator in the same system, and the site belongs to the same system site as the other site, and the site If the other sites belong to the same carrier, the site determines that the frequency resources occupied by the other sites can be reused according to the foregoing multiplexing condition information and the operator information to which the other sites belong.
  • the preset information further includes: multiplexing mode information of the frequency resources occupied by the other sites, frequency resource information occupied by the other sites, and occupation time information of the frequency resources occupied by the other sites, where
  • the foregoing multiplexing mode information is, for example, frequency division multiplexing
  • the station determines, according to the duration occupied by the other stations and the duration of use of the other stations, the remaining duration of the station, and the unlicensed carrier is used in the unlicensed carrier.
  • the frequency resources occupied by other sites are eliminated to determine the frequency resources available to the site, and then the site uses the frequency resources available to the site in a frequency division multiplexed manner for the duration of time available for the site.
  • the other sites may take a long time to preempt the unlicensed carrier.
  • the other sites can preempt the unlicensed carrier for up to 10 ms (one subframe is 1ms, 10ms, that is, 10 subframes), the other stations generally use only a few of the subframes to complete the data transmission.
  • the remaining subframes in the existing technical solution, if the other sites do not continue The remaining sub-frames can only be wasted, and cannot be multiplexed by another station (for example, the site that receives the preset information mentioned above).
  • the other sites are preempted by the technical solution provided by the embodiment of the present invention.
  • the preset message is sent to the station (for example, the preset message indicates that the remaining 8 subframes of the other station use 2 subframes support the frequency Multiplexed in a multiplexed manner, so that the station can multiplex the unlicensed carriers occupied by the other stations according to the received preset information.
  • the remaining 8 subframes are multiplexed in a frequency division multiplexing manner
  • the unlicensed carrier can be utilized to the maximum extent, and the carrier utilization efficiency is improved.
  • the preset information in the embodiment of the present invention may further include at least one of the following information: a cell identifier ID where the other station is located, a subframe number of the frequency resource occupied by the other station, and the other The location of the uplink or downlink subframe of the frequency resource occupied by the station.
  • the other station uses a base station as an example.
  • the station uses the UEs of the other stations as an example.
  • the preset information sent by the base station that successfully camps on the unlicensed carrier to the UEs of the subordinates includes the foregoing three types of information.
  • the subordinate UE can learn that the base station has obtained the unlicensed carrier usage right, and which of the subframes of the unlicensed carrier occupied by the base station are uplink and downlink subframes, so that the UE subordinate to the base station can not only multiplex the occupied by the base station.
  • Subframes may also perform measurements in downlink subframes, such as Channel Status Information (CSI) measurements or Radio Resource Management (RRM) measurements.
  • CSI Channel Status Information
  • RRM Radio Resource Management
  • the stations can also learn the downlink subframe position by using the foregoing three types of information included in the preset information. It is thus also possible to perform interference measurements in order to reduce the signal interference by the subsequent use of the interference measurement.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by the signaling, and the signaling is sent by a Physical Downlink Shared Channel (PDSCH), which is scheduled by the second DCI.
  • PDSCH Physical Downlink Shared Channel
  • the technician may re-define the meaning of the value of the part or all bits agreed in the format of the first DCI to make the bit in the format of the first DCI.
  • the value of the information is the same as the specific content of the information included in the preset information in the embodiment of the present invention, so that the preset information in the embodiment of the present invention is carried by the first DCI.
  • the meaning of the special meaning is redefined, so that the meaning of the redefined bit forms a corresponding relationship with each piece of information included in the preset information in the above embodiment, and the meaning of the bit in the format of the redefined first DCI is recognized. Agreement provisions.
  • the preset information in the embodiment of the present invention is carried by the configuration signaling, where the signaling is sent through the PDSCH, and the second DCI is used to schedule the signaling, where the PDSCH is A physical downlink channel in the existing LTE system, the DCI scheduling signaling, and the configuration signaling in the LTE system are common technical means by those skilled in the art, and will not be described in detail herein.
  • the format of the first DCI or the second DCI in the embodiment of the present invention is any one of the formats of the DCI included in the LTE Rel-12; or the format of the first DCI or the second DCI It is any one of the newly introduced DCI formats for the LTE system.
  • the format of the first DCI or the second DCI may be any one of the following existing DCI formats: DCI 0, DCI 1A, DCI 1B, DCI 1C, DCI 1D, DCI 2, DCI 2A, DCI 2 , DCI 3, DCI 3A.
  • the above 10 formats are only partial, not all, of the existing DCI formats.
  • the LTE system has been continuously evolving.
  • a new DCI format may also be specified in the subsequent evolution process.
  • the format of the first DCI or the second DCI may also be any one of the new DCI formats added in the future LTE version protocol.
  • the preset information sent by the site to the other site may be:
  • the station acquires preset information sent by the other station according to the received signal sent by the other station using the authorized carrier.
  • the other station may use the signal of the authorized carrier to send the preset information.
  • the station can also use the authorized carrier that can be used by the other station, the station can receive the signal sent by the other station using the authorized carrier, and obtain the pre-sent by the other station according to the received signal of the authorized carrier. Set information.
  • the station obtains preset information sent by the other station according to the received signal sent by the other station using the authorized carrier, including:
  • the station detects a common search space or an agreed search in a physical downlink control channel (PDCCH) in a subframe in a signal in the licensed carrier.
  • the cable space is used to obtain the first DCI or the second DCI, and the first DCI or the second DCI is descrambled by using a preset Radio Network Temporary Identifier (RNTI), and the first DCI or descrambling obtained according to the descrambling is obtained.
  • RNTI Radio Network Temporary Identifier
  • the second DCI obtains preset information; or,
  • the station acquires the first DCI or the second DCI by detecting a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in the signal in the licensed carrier, using the pre-
  • the radio network temporary identifier (RNTI) is configured to descramble the first DCI or the second DCI, and the preset information is obtained according to the first DCI obtained by the descrambling or the second DCI obtained by the descrambling.
  • the other sites may carry the first DCI or the second DCI in a common search space or an agreed-upon in the PDCCH or ePDCCH in the authorized carrier subframe according to the existing DCI.
  • the search space is transmitted, and then the station can acquire the common search space or the agreed search space in the physical downlink control channel (PDCCH) in the subframe in the signal of the licensed carrier, wherein the agreed search space can pass the standardized protocol. Provisions.
  • the method may further include:
  • the site performs CCA or eCCA
  • the station When the station performs CCA or eCCA busy, the station receives a signal containing preset information sent by the other station using an unlicensed carrier;
  • the site obtains the preset information sent by the other site as:
  • the station when the station performs the CCA or eCCA preemption of the use rights of the unlicensed carrier at the same time as other stations, the other stations first seize the right to use the unlicensed carrier, that is, the station performs CCA or When the eCCA is busy, the station may not perform random avoidance in the existing CCA or eCCA, but continue to receive preset information sent by the other station to the unlicensed carrier after preempting the use right of the unlicensed carrier. Thereby, the preset information sent by other sites can be obtained.
  • the station obtains preset information sent by the other station according to the signal in the unlicensed carrier received when the CCA or the eCCA is executed, including:
  • the station acquires the first DCI or the second DCI by detecting a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in the signal in the unlicensed carrier, using the preset wireless network temporary
  • the identifier descrambles the first DCI or the second DCI, and obtains preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling; or
  • the station acquires the first DCI or the second DCI by detecting a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in the signal in the unlicensed carrier, using the preset wireless network
  • the temporary identifier (RNTI) descrambles the first DCI or the second DCI, and acquires preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling.
  • the other sites may carry the first DCI or the second DCI in a common search space or convention in the PDCCH or ePDCCH in the unlicensed carrier subframe according to the existing agreed DCI.
  • the search space is transmitted, and then the station can be obtained in a common search space or an agreed search space in the PDCCH in the subframe in the signal of the unlicensed carrier, wherein the agreed search space can be specified by a standardized protocol.
  • acquiring the preset information sent by the other station according to the signal in the unlicensed carrier received when the CCA or the eCCA is performed may be:
  • the station uses the preset RNTI to descramble the first DCI to obtain preset information; or,
  • the station descrambles the second DCI by using the preset RNTI, and obtains the signaling according to the second DCI to parse the signaling to obtain preset information.
  • the other station may use a preset Radio Network Temporary Identifier (RNTI) to add a Cyclic Redundancy Check (CRC) bit in the first DCI or a CRC bit in the second DCI.
  • RNTI Radio Network Temporary Identifier
  • CRC Cyclic Redundancy Check
  • the station uses the preset RNTI to descramble the CRC bits in the first DCI or the CRC bits in the second DCI to obtain the first DCI or the second DCI.
  • the use of the RNTI to scramble or descramble the CRC bits in the DCI belongs to the prior art, and will not be described in detail herein.
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the preset RNTI may be that the site receives the other site and sends a broadcast through the system.
  • the preset RNTI may also be an RNTI as a dedicated DCI when the first DCI or the second DCI is scrambled by means of a standardized protocol.
  • the agreed RNTI may be recorded as an O-RNTI, so that the site is used as the sender.
  • the standardized protocol uses O-RNTI, and the same receiver also uses O-RNTI according to the standardized protocol.
  • the preset RNTI may also be a pre-agreed RNTI corresponding to the first DCI or the second DCI.
  • the RNTI scrambles the first DCI or the second DCI with the RNTI corresponding to the operator to which the site belongs
  • the preset information in the foregoing embodiment is used because the RNTI is associated with the operator. It is also possible not to include the carrier information corresponding to the site.
  • the site acquires preset information sent by another station, where the preset information includes at least one of the following information: multiplexing condition information of the frequency resource occupied by the other site, The multiplexing mode information of the frequency resources occupied by the other sites, the frequency resource information occupied by the other sites, the occupation time information of the frequency resources occupied by the other sites, and the operator information of the other sites; the site is based on The preset information reuses the frequency resources occupied by the other stations.
  • an unlicensed carrier occupied by a certain site can be multiplexed between different sites, and the utilization rate of the unlicensed carrier is improved.
  • the embodiment of the present invention further provides a method for carrier multiplexing, wherein the station is based on a sending end, as shown in FIG. 2, the method includes the following steps:
  • Step 201 The site performs CCA or eCCA.
  • Step 202 After the site performs CCA or eCCA successfully, and obtains the use right of the unlicensed carrier, the station sends preset information.
  • the preset information includes at least one of the following information: multiplexing condition information of the frequency resource occupied by the station, multiplexing mode information of the frequency resource occupied by the station, frequency resource information occupied by the station, and frequency occupied by the station. Information about the occupation time of the resource and the carrier information to which the site belongs.
  • the multiplexing condition information of the frequency resource occupied by the station is a resource multiplexing condition set by the station.
  • the multiplexing condition of the frequency resource occupied by the station may include: the station supports any operation under any system (for example, LTE system or WLAN system)
  • the neighboring site resources of the business are reused; or the site supports the neighboring site resource multiplexing of any operator under the same system (for example, the LTE system); or the site supports the phase under the same system belonging to the same operator.
  • the neighboring site resources are multiplexed; or the site supports neighboring site resource multiplexing under any system belonging to the same carrier; or the site is set to not support neighboring site resource multiplexing.
  • the multiplexing manner of the frequency resources occupied by the station may include: frequency division multiplexing; time division multiplexing; code division multiplexing.
  • the frequency resource information occupied by the station is the channel information occupied by the station (for example, the station occupies one channel of the unlicensed carrier 5 GHz) and the duration information of the station occupying the frequency resource (for example, the station occupies one channel for 11 ms in the LBE mode).
  • the duration information of the frequency resource occupied by the site refers to the duration information of the frequency resource occupied by the site plan to use.
  • the carrier information to which the site belongs can be applied in accordance with the country or region.
  • the description of the operator information can be divided into: regional and / or national identification (for example, the mainland China logo is +86) and the identification (such as number) in the region and / or country; can also be directly set for the operator The only logo in the world.
  • the preset information sent by a site needs to include the carrier information to which the site belongs, but in some cases.
  • the preset information sent by the site may not include the operator information to which the site belongs.
  • the preset information needs to include the foregoing optional other information.
  • a foreseeable scenario is: when a non-authorized carrier allows neighboring stations to reuse in a certain country or region or through a standardized method, and is not limited to whether the adjacent multiplexed sites are the same carrier, then the site sends The preset information may not include the carrier information to which the site belongs, and only needs to include other optional information mentioned above. If the site that is restricted to the same carrier by the neighboring site can be reused, the preset information sent by the site needs to include at least the carrier information to which the site belongs.
  • the site takes a long time to preempt the unlicensed carrier.
  • the site can preempt the unlicensed carrier for up to 10 ms (one subframe is 1 ms, 10 ms is 10).
  • the right to use the sub-frames the station generally only uses several of the sub-frames to complete the data transmission.
  • the station does not continue to use the remaining sub-frames, it can only be wasted.
  • the multiplex is not multiplexed by other sites.
  • the technical solution provided by the embodiment of the present invention sends a preset to the remaining sites after preempting the usage rights of the unlicensed carrier (for example, the usage rights of 10 subframes).
  • Message for example, the preset message indicates:
  • the station uses the remaining 8 subframes after the 2 subframes to support multiplexing in a frequency division multiplexing manner, so that the remaining stations can multiplex the unlicensed carriers occupied by the station according to the received preset information (for example, frequency division multiplexing)
  • the unlicensed carrier can be utilized to the maximum extent, and the carrier utilization efficiency is improved.
  • the preset information in the embodiment of the present invention may further include at least one of the following information: a cell identifier ID where the site is located, a subframe number of the frequency resource occupied by the site, and a frequency resource occupied by the site.
  • the station takes the base station as an example, and the other stations take the UEs of the station as an example.
  • the preset information that the base station that successfully acquires the unlicensed carrier successfully sends to the subordinate UE includes the foregoing three types of information, so that the subordinate UE can be made.
  • the base station has obtained the unlicensed carrier usage right, and which of the subframes of the unlicensed carrier occupied by the base station are uplink and downlink subframes, so that the UE subordinate to the base station can perform measurement in the downlink subframe, for example, the channel state.
  • Channel Status Information (CSI) measurement or Radio Resource Management (RRM) measurement for other neighboring stations, for example, the base station adjacent to the base station or the UE subordinate to the base station that does not belong to the unlicensed carrier, the downlink subframe position can be learned by using the foregoing information included in the preset information, and thus can also be performed. Interference measurements are used to reduce signal interference by subsequent use of interference measurements.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by the signaling, and the signaling is sent by a Physical Downlink Shared Channel (PDSCH), which is scheduled by the second DCI.
  • PDSCH Physical Downlink Shared Channel
  • the technician may re-define the meaning of the value of the part or all bits agreed in the format of the first DCI to make the bit in the format of the first DCI.
  • the value of the information is the same as the specific content of the information included in the preset information in the embodiment of the present invention, so that the preset information in the embodiment of the present invention is carried by the first DCI.
  • the meaning of the special meaning is redefined, so that the meaning of the redefined bit forms a corresponding relationship with each piece of information included in the preset information in the above embodiment, and the meaning of the bit in the format of the redefined first DCI is recognized. Agreement provisions.
  • the preset information in the embodiment of the present invention is carried by the configuration signaling, where the signaling is sent through the PDSCH, and the second DCI is used to schedule the signaling, where the PDSCH is A physical downlink channel in the existing LTE system, the DCI scheduling signaling, and the configuration signaling in the LTE system are common technical means by those skilled in the art, and will not be described in detail herein.
  • the format of the first DCI or the second DCI in the embodiment of the present invention is any one of the formats of the DCI included in the LTE Rel-12; or the format of the first DCI or the second DCI It is any one of the newly introduced DCI formats for the LTE system.
  • the format of the first DCI or the second DCI may be any one of the following existing DCI formats: DCI 0, DCI 1A, DCI 1B, DCI 1C, DCI 1D, DCI 2, DCI 2A, DCI 2 , DCI 3, DCI 3A.
  • the above 10 formats are only partial, not all, of the existing DCI formats.
  • the LTE system has been continuously evolving.
  • a new DCI format may also be specified in the subsequent evolution process.
  • the format of the first DCI or the second DCI may also be any one of the new DCI formats added in the future LTE version protocol.
  • the first DCI or the second DCI carried by the site to perform CCA or eCCA successful subframes; or
  • the first DCI or the second DCI is carried by the subframe that is preempted by the station after performing the CCA or eCCA successful subframe.
  • the first DCI or the second DCI is carried by using the agreed physical resource/physical channel; or the first DCI or the second DCI is carried by using a fixed physical resource relative to a known physical resource/physical channel. For example, if a site occupies an unlicensed carrier, it will occupy more subframes (for example, in FBE mode, it can take up to 10ms, and one subframe is 1ms).
  • the preset information sent by the station to other sites indicates:
  • the station may multiplex frequency resources with neighboring stations, and the multiplexing manner is frequency division multiplexing, and the station selects a subframe that uses the station to perform CCA or eCCA success (ie, The foregoing agreed physical resource) carries the first DCI or the second DCI, so that the adjacent station can receive the first DCI or the second DCI in time, and perform frequency division multiplexing in time.
  • CCA or eCCA success ie, The foregoing agreed physical resource
  • the site occupies resources, it is not eager to reuse frequency resources with other sites (for example, the load that needs to be transmitted when the site is occupied), and then send the first DCI or the second when the site load decreases after a period of transmission.
  • DCI to support multiplexing of frequency resources with neighboring
  • the station uses the subframes after the subframes in which the site performs CCA or eCCA success (that is, the above-mentioned fixed physical resources relative to a known physical resource) to carry the first A DCI or a second DCI.
  • the first DCI or the second DCI may be sent in a common search space or an agreed search space in the PDCCH or the ePDCCH of the selected subframe.
  • the station sends the first DCI or the second DCI by using a common search space or an agreed search space in a Physical Downlink Control Channel (PDCCH) in the subframe in which the CCA or eCCA is successful; or
  • PDCH Physical Downlink Control Channel
  • the station sends the first DCI or the second DCI by using a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in the subframe in which the CCA or eCCA is successful; or
  • ePDCCH enhanced physical downlink control channel
  • the station sends the first DCI or the second DCI using a common search space or an agreed search space in the PDCCH in the pre-empted subframe after the station performs the CCA or eCCA successful subframe; or
  • the station transmits the first DCI or the second DCI using the common search space or the agreed search space in the ePDCCH in the pre-empted subframe after the station performs the CCA or eCCA successful subframe.
  • the station chooses to use the common search space or the agreed search space in the PDCCH in the subframe in which the CCA or eCCA is successful, the first DCI or the second DCI is sent, in order to facilitate the use of the PDCCH, It is simply modified, where the agreed search space can be specified by a standardized protocol.
  • the position of the PDCCH in the Orthogonal Frequency Division Multiplexing (OFDM) symbol of the subframe should be fixed, and optionally, one or two OFDM symbols are fixed. .
  • OFDM Orthogonal Frequency Division Multiplexing
  • the existing PDCCH occupies the most
  • the first 4 OFDM symbols of the frame may be reselected in the selected subframe to fix one or more OFDM symbols, and then transmitted according to the existing manner of transmitting the PDCCH.
  • PCFICH Physical Control Format Indicator Channel
  • PHICH Physical Hybrid ARQ Indicator Channel
  • the station chooses to use the common search space or the agreed search space in the PDCCH in the subframe after the subframe in which the CCA or eCCA is successful to perform the first DCI or the second DCI, the specific transmission manner is implemented with reference to the above content.
  • the site needs to be used for transmitting the first DCI or the second in advance.
  • the configuration information of the ePDCCH of the DCI and the resource information (for example, a used physical resource block (PRB)) are agreed upon and transmitted. In this way, other stations (including subordinate UEs) can correctly discover and receive the first DCI or the second DCI in the ePDCCH.
  • PRB physical resource block
  • the station chooses to use the common search space of the ePDCCH in the subframe after the subframe in which the CCA or the eCCA is successful, or the agreed search space to send the first DCI or the second DCI, the specific transmission manner is implemented by referring to the foregoing content.
  • the first DCI or the second DCI is carried by a subframe in the authorized carrier corresponding to the time when the station performs the CCA or eCCA successful subframe; or
  • the first DCI or the second DCI is carried by a subframe in the authorized carrier corresponding to the time of the subframe preempted after the subframe in which the station performs CCA or eCCA success.
  • the LTE system supports Carrier Aggregation (CA).
  • CA Carrier Aggregation
  • the station can perform carrier aggregation with the authorized carrier. Therefore, the station can also use the authorized carrier to send the first DCI. Or the second DCI, however, must be guaranteed for
  • the subframes in the grant carrier transmitting the first DCI or the second DCI are temporally corresponding to the subframes in the unlicensed carrier occupied by the station that can be used to transmit the first DCI or the second DCI.
  • the first DCI or the second DCI may be sent in a common search space or an agreed search space in the PDCCH or the ePDCCH of the selected subframe.
  • the station transmits the first DCI or the second using a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in the subframe corresponding to the time when the station performs the CCA or eCCA successful subframe.
  • DCI or,
  • the station transmits the first DCI or the first search space or the agreed search space in the enhanced physical downlink control channel (ePDCCH) in the subframe in the subframe corresponding to the time when the station performs the CCA or eCCA successful subframe.
  • ePDCCH enhanced physical downlink control channel
  • the station transmits the first DCI or the second DCI using a common search space or an agreed search space in the PDCCH in the subframe in the subframe corresponding to the time of the subframe that is preempted after the station performs the CCA or eCCA successful subframe. ;or,
  • the station transmits the first DCI or the second DCI using a common search space or an agreed search space in the ePDCCH in the subframe in the subframe corresponding to the time of the subframe that is preempted after the station performs the CCA or eCCA successful subframe.
  • the manner in which the station selects the common search space of the PDCCH of the subframe in the authorized carrier or the agreed search space to send the first DCI or the second DCI to other stations may refer to the use of the unlicensed carrier in the site.
  • the manner in which the common search space of the PDCCH of the subframe or the agreed search space sends the first DCI or the second DCI to other stations is not described herein; the station selects the common search space of the ePDCCH of the subframe in the authorized carrier or
  • the manner in which the agreed search space sends the first DCI or the second DCI to other sites may refer to the common search space of the ePDCCH of the subframe in the unlicensed carrier or the agreed search space to send the first DCI to other sites. Or the way of the second DCI, I will not repeat them here.
  • the first DCI or the second DCI is scrambled by the station using a preset Radio Network Temporary Identity (RNTI).
  • RNTI Radio Network Temporary Identity
  • the station may use a preset Radio Network Temporary Identifier (RNTI) to scramble the CRC bits in the first DCI or the CRC bits in the second DCI, where the CRC bits in the DCI are scrambled by using the RNTI.
  • RNTI Radio Network Temporary Identifier
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the preset RNTI may be that the station receives the RNTI corresponding to the operator to which the station belongs when the other station sends the system broadcast through the system for scrambling the first DCI or the second DCI.
  • the preset RNTI may also be an RNTI as a dedicated DCI when the first DCI or the second DCI is scrambled by means of a standardized protocol.
  • the agreed RNTI may be recorded as an O-RNTI, so that the site is used as the sender.
  • the standardized protocol uses O-RNTI, and the same receiver also uses O-RNTI according to the standardized protocol.
  • the preset RNTI may also be a pre-agreed RNTI corresponding to the first DCI or the second DCI.
  • the RNTI scrambles the first DCI or the second DCI with the RNTI corresponding to the operator to which the site belongs
  • the preset information in the foregoing embodiment is used because the RNTI is associated with the operator. It is also possible not to include the carrier information corresponding to the site.
  • a method for carrier multiplexing is provided by the embodiment of the present invention.
  • the site performs CCA or eCCA.
  • the site sends preset information.
  • the preset information includes At least one of the following information: the multiplexing condition information of the frequency resource occupied by the site, the multiplexing mode information of the frequency resource occupied by the site, the frequency resource information occupied by the site, and the occupation time information of the frequency resource occupied by the site, Carrier information to which the site belongs.
  • the station after preempting the use right of the unlicensed carrier, the station sends the multiplexing condition information of the occupied frequency resource to other stations, so that the unlicensed carrier occupied by the site can be realized between different sites. Reuse, improve the utilization of unlicensed carriers.
  • the station performs CCA or eCCA (CCA/eCCA) for preemption of unlicensed carriers.
  • CCA/eCCA CCA/eCCA
  • the station sends DCI format information to other stations.
  • the bits in the DCI format are used to describe the carrier information to which the site belongs, the frequency resource information specifically occupied by the site, and the occupation time information of the frequency resources occupied by the site.
  • the frequency resource information is described by means of PRB resource allocation.
  • the DCI format is one of the existing DCI formats of the LTE, and the DCI format is used to describe the sending of the foregoing information. For example, an existing DCI 1C format can be agreed upon.
  • the station adds a CRC check bit to the bits in the DCI 1C format and then scrambles the CRC check bits of the bits in the DCI 1C format using a contracted (or standard specified) RNTI (notably denoted O-RNTI).
  • a contracted (or standard specified) RNTI notably denoted O-RNTI.
  • O-RNTI a contracted (or standard specified) RNTI
  • bits that are not used in the DCI 1C format are still reserved (eg, set to 0 or set to 1) such that the total number of bits of the DCI 1C remains unchanged (where the number of bits per DCI format is constant).
  • the station transmits the DCI format information in an unlicensed carrier, selects to transmit in a subframe in which the station performs CCA/eCCA success, or transmits in the next subframe of the successful subframe.
  • the other station receives the information of the DCI format sent by the station, and parses the meaning of the bits in the DCI format, and further determines whether it can use the unlicensed carrier at the same time according to the meaning of the bit, and how to use and use which part of the frequency resource. Specifically, the other station performs blind detection using the agreed O-RNTI in the agreed resource for transmitting the DCI 1C, then decodes the DCI, acquires the bit information therein, and parses the bit information. If the site allows other sites to reuse unlicensed carriers with themselves, then other sites use the remaining frequency resources and reuse them within the time taken by the site. When the time taken by the site is exceeded, other sites will stop. Reuse.
  • the station uses the agreed RNTI (for example, the station uses the RNTI corresponding to the operator to which the station belongs) to scramble the CRC bits added by the DCI 1C bit (here indicates the schematic selection of the DCI 1C format, other DCI).
  • the format is also ok, as long as it is agreed in advance, and the meaning of the bits in the DCI format here is different from the meaning of the bits in the DCI 1C format in the first embodiment), the bits obtained after scrambling are encoded, the station then Send the DCI 1C Formatted information, wherein the bits in the DCI 1C are control information configured by the signaling A (mainly implementing resource allocation and coding modulation information), and the station further performs signaling according to modulation coding mode, resource allocation, and the like in the DCI 1C.
  • A performs modulation coding to map transmission signaling A on the corresponding resource (signal A is regarded as data transmitted in the PDSCH).
  • the information included in the signaling A is the information described by the bits in the DCI 1C format used in the first embodiment.
  • the resource used by the station to send signaling A may be a subframe in which the station performs CCA/eCCA success or a next subframe.
  • the control information of the signaling A may be sent in the authorized carrier or the unlicensed carrier that is contending.
  • the authorized carrier it is required to ensure that the subframe of the authorized carrier corresponds to the subframe of the unlicensed carrier, and optionally, the PDCCH or the ePDCCH is used. (PDCCH/ePDCCH) is transmitted in the aforementioned subframe.
  • the other station functions as a receiving end, and blindly detects the PDCCH/ePDCCH in the agreed resource (used to transmit the PDCCH/ePDCCH including the DCI 1C) according to the agreed RNTI (for example, using the RNTI corresponding to the operator to which the station belongs).
  • the agreed resource used to transmit the PDCCH/ePDCCH including the DCI 1C
  • the other stations that are the receiving end first try to use the RNTI corresponding to the carrier to which they belong to try blind detection, and secondly, the frequency multiplexing can be used.
  • the operator's RNTI attempts a blind check, in which operators that allow frequency reuse are known through negotiation.
  • the DCI 1C is decoded, and the signaling A is further received from the Physical Downlink Shared Channel (PDSCH) according to the information in the DCI 1C (for example, resource information, modulation and coding information, etc.), and then the signaling A is finally decoded. Get signaling A.
  • the receiving end can then perform further processing in the manner of the first embodiment.
  • the UE sends the uplink data after the CCA or the eCCA (CCA/eCCA) is successfully executed, and the uplink data is sent to the UE by the base station side. Sended on the authorized carrier or unlicensed carrier.
  • the subframe position at which the UE performs CCA/eCCA is also notified to the UE by the base station side in advance.
  • the base station receives the uplink data sent by the UE in the corresponding subframe. If the base station correctly decodes the data, the base station may consider that the subordinate UE occupies the unlicensed carrier, and the base station obtains the use right of the unlicensed carrier, and according to the service.
  • the demand scheduling subordinate UE (including the aforementioned UE performing CCA/eCCA success, and other UEs).
  • the base station side can only use the unlicensed carrier within the remaining duration of the UE occupying the unlicensed carrier. For example, after the UE preempts successfully, the maximum occupation time is 10 ms, and the UE sends uplink data for 1 ms. The base station can only use the remaining 9ms.
  • the UE side can also report the duration of the occupation, or the duration of the occupation is a fixed value. In this way, the base station side can calculate the remaining duration.
  • the maximum duration that the base station can use is: the maximum occupation duration specified by the regulation minus the duration used by the UE.
  • the duration used by the UE may or may not include the time portion of the UE performing CCA/eCCA.
  • the base station can also perform the transmission of the operator information in the manner of the first embodiment to support the multiplexing of the neighboring sites and improve the utilization efficiency of the unlicensed carrier.
  • the station is a UE
  • the UE when the UE performs CCA/eCCA successfully, the UE is preempted to the unlicensed carrier, and the UE sends the DCI format information in the agreed resource, where the bit in the DCI format is the bit in the DCI format in the first embodiment. meaning.
  • the manner in which the UE sends the information in the DCI format may be the manner in which the station in the first embodiment, the second, or the third embodiment sends the information in the DCI format.
  • the UE may use its own Cell Radio Network Temporary Identity (C-RNTI) instead of the RNTI agreed upon in the previous embodiments.
  • C-RNTI Cell Radio Network Temporary Identity
  • the base station to which the UE belongs can receive the information of the DCI format sent by the UE, and the base station parses the information of the received DCI format, and notifies the neighboring station of the data information, for example, by using an X2 port or a system broadcast message.
  • C-RNTI Cell Radio Network Temporary Identity
  • the station sends the subframe position including the DCI format information to the subframe in which the CCA/eCCA is successfully executed, and secondly, the first occupied subframe after the CCA/eCCA success is selected to be transmitted.
  • the subframe positions of the information transmitting the DCI format are slightly different according to different scenarios. For example, in an area where CCA/eCCA is required to be executed and a maximum occupation time is short, such as Europe, Japan, etc., the information of the DCI format is more advantageous after the site preemption succeeds.
  • a successful subframe using CCA/eCCA, or the next subframe is transmitted (other subframes that are occupied later can also be transmitted, but the time for multiplexing can be shortened and the efficiency is lowered); when the single occupation time is long
  • the transmission after the successful subframe of CCA/eCCA can be used, the efficiency is also reduced, but the magnitude of the reduction is not obvious.
  • each operator's site uses each The RNTI corresponding to the operator.
  • the station performs CCA/eCCA success, obtains the right to use the unlicensed carrier, and uses the RNTI corresponding to the operator to which the station belongs to scramble the CRC bits added by the bits in the agreed DCI format, and then encodes and sends the obtained bits ( Specifically, the existing LTE coding mode can be used.
  • the station at the receiving end firstly use the RNTI corresponding to the operator to blindly check the DCI. If the blind detection succeeds, then the bits in the DCI are parsed, and according to the agreed meaning of the bit, whether to implement the multiplexing of the unlicensed carrier, and how to Reuse. For details, refer to the foregoing several embodiments, such as the multiplexing mode of the first embodiment.
  • the station at the receiving end may also select an RNTI of an operator from the corresponding RNTI of the carrier that supports the unlicensed carrier multiplexing for blind detection.
  • the multiplexed operator's contract RNTI does not use it for blind inspection.
  • the UE After the UE performs the CCA to obtain the unlicensed carrier usage right, the UE sends a reservation signal, where the reserved signal can indicate which base station the UE belongs to, and the reserved signal is sent in the unlicensed carrier, in order to prevent non-
  • the signal used by the authorized carrier to be taken away by other stations to occupy the channel may also be referred to as an occupied signal.
  • the reserved signal may be scrambled by the C-RNTI of the UE, or may be a sequence allocated by the base station for the UE, such as a certain preamble sequence.
  • the base station side receives the reserved signal, and if the reserved signal can be correctly acquired, the base station side determines that the subordinate UE successfully preempts the unlicensed carrier usage right, and the base station side obtains the use right of the unlicensed carrier. If the base station side cannot correctly decode or acquire the reserved signal, the base station cannot obtain the unauthorized carrier usage right.
  • the base station After the base station acquires the unlicensed carrier usage right, the base station can use the method in the first embodiment.
  • the base station can also perform the transmission of the operator information in the manner of the first embodiment to support the multiplexing of the neighboring stations and improve the utilization efficiency of the unlicensed carrier.
  • an embodiment of the present invention provides a site 10, as shown in FIG. 3, the site 10 includes:
  • the obtaining unit 11 is configured to: acquire preset information sent by another station; wherein the preset information includes at least one of the following information: a multiplexing condition letter of the frequency resource occupied by the other station Information, the multiplexing mode information of the frequency resources occupied by the other sites, the frequency resource information occupied by the other sites, the occupation time information of the frequency resources occupied by the other sites, and the operator information of the other sites.
  • the multiplexing unit 12 is configured to: multiplex the frequency resources occupied by the other stations according to the preset information acquired by the obtaining unit 11.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by signaling, and the signaling is sent through a Physical Downlink Shared Channel (PDSCH), which is scheduled by the second DCI.
  • PDSCH Physical Downlink Shared Channel
  • the obtaining unit 11 is configured to:
  • the obtaining unit 11 is configured to:
  • Obtaining a first DCI or a second DCI by detecting a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in a signal in the licensed carrier, using a preset radio network temporary identifier (RNTI) Dissolving the first DCI or the second DCI, and acquiring preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling; or
  • PDCCH physical downlink control channel
  • RNTI radio network temporary identifier
  • Obtaining a first DCI or a second DCI by detecting a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in a signal in the licensed carrier, using a preset radio network temporary identifier (RNTI) Dissolving the first DCI or the second DCI, and acquiring preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling.
  • ePDCCH enhanced physical downlink control channel
  • RNTI radio network temporary identifier
  • the site further includes:
  • the evaluation unit 13 is configured to: perform a clear channel assessment (CCA) or an extended idle channel assessment (eCCA) before the obtaining unit 11 acquires preset information sent by the other station;
  • CCA clear channel assessment
  • eCCA extended idle channel assessment
  • the receiving unit 14 is configured to: when the evaluation unit 13 performs CCA or eCCA busy, receive a signal that includes the preset information that is sent by the other station using the unlicensed carrier;
  • the obtaining unit 11 is set to:
  • the preset information is acquired according to a signal in an unlicensed carrier received by the receiving unit 14.
  • the obtaining unit 11 is configured to:
  • Obtaining the first DCI or the second DCI by detecting a common search space or an agreed search space in a physical downlink control channel (PDCCH) in a subframe in the signal in the unlicensed carrier, using a preset wireless network temporary identifier (RNTI) descrambles the first DCI or the second DCI, and obtains preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling; or
  • PDCCH physical downlink control channel
  • RNTI wireless network temporary identifier
  • Obtaining a first DCI or a second DCI by detecting a common search space or an agreed search space in an enhanced physical downlink control channel (ePDCCH) in a subframe in a signal in an unlicensed carrier, using a preset wireless network temporary identifier (RNTI) descrambles the first DCI or the second DCI, and acquires preset information according to the first DCI obtained by descrambling or the second DCI obtained by descrambling.
  • ePDCCH enhanced physical downlink control channel
  • RNTI wireless network temporary identifier
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the format of the first DCI or the second DCI is any one of formats of DCI included in LTE Rel-12; or
  • the format of the first DCI or the second DCI is any one of the newly introduced DCI formats of the LTE system.
  • the site acquires preset information sent by another site; wherein the preset information includes at least one of the following information: multiplexing condition information of the frequency resource occupied by the other site, and the other site.
  • the embodiment of the present invention further provides a site 20, as shown in FIG. 5, the site 20 includes:
  • the evaluation unit 21 is configured to perform a clear channel assessment (CCA) or an extended idle channel assessment (eCCA).
  • CCA clear channel assessment
  • eCCA extended idle channel assessment
  • the sending unit 22 is configured to: after the evaluation unit performs CCA or eCCA success, obtains the usage right of the unlicensed carrier, and sends preset information; wherein the preset information includes at least one of the following information: a frequency resource occupied by the station The multiplexing condition information, the multiplexing mode information of the frequency resource occupied by the site, the frequency resource information occupied by the site, the occupation time information of the frequency resource occupied by the site, and the operator information to which the site belongs.
  • the preset information is carried by the first downlink control information (DCI), and the preset information is described by part or all of the bits agreed in the format of the first DCI; or
  • the preset information is carried by signaling, and the signaling is sent through a Physical Downlink Shared Channel (PDSCH), which is scheduled by the second DCI.
  • PDSCH Physical Downlink Shared Channel
  • the first DCI or the second DCI carried by the site to perform CCA or eCCA successful subframes; or
  • the first DCI or the second DCI is carried by the subframe that is preempted by the station after performing the CCA or eCCA successful subframe.
  • the sending unit 22 is configured to:
  • the first DCI or the second DCI is transmitted using a common search space or an agreed search space in the ePDCCH in the pre-empted subframe after the station performs the CCA or eCCA successful subframe.
  • the first DCI or the second DCI is carried by a subframe in the authorized carrier corresponding to the time when the station performs the CCA or eCCA successful subframe; or
  • the first DCI or the second DCI is carried by a subframe in the authorized carrier corresponding to the time of the subframe preempted after the subframe in which the station performs CCA or eCCA success.
  • the sending unit 22 is configured to:
  • the first DCI or the second DCI is transmitted using a common search space or an agreed search space in the ePDCCH in the subframe in the subframe corresponding to the time of the pre-empted subframe after the station performs the CCA or eCCA successful subframe.
  • the first DCI or the second DCI is scrambled by the sending unit 22 using a preset Radio Network Temporary Identity (RNTI).
  • RNTI Radio Network Temporary Identity
  • the preset radio network temporary identifier includes:
  • An RNTI that is pre-agreed and corresponds to the first DCI or the second DCI.
  • the format of the first DCI or the second DCI is any of the formats of the DCI included in the LTE Rel-12 Intentional; or,
  • the format of the first DCI or the second DCI is any one of the newly introduced DCI formats of the LTE system.
  • the embodiment of the present invention further provides a station that performs a clear channel assessment (CCA) or an extended idle channel assessment (eCCA).
  • CCA clear channel assessment
  • eCCA extended idle channel assessment
  • the station sends the pre- Setting information; wherein the preset information includes at least one of the following information: multiplexing condition information of the frequency resource occupied by the station, multiplexing mode information of the frequency resource occupied by the station, frequency resource information occupied by the station, and the site The occupation time information of the occupied frequency resource and the carrier information to which the site belongs.
  • the station after preempting the use right of the unlicensed carrier, the station sends the multiplexing condition information of the occupied frequency resource to other stations, so that the unlicensed carrier occupied by the site can be realized between different sites. Reuse, improve the utilization of unlicensed carriers.
  • an embodiment of the present invention provides a method for sending information, including:
  • the station After the station performs the Clear Channel Assessment (CCA) or the Extended Clear Channel Assessment (eCCA) successfully, and obtains the usage right of the unlicensed carrier, the station determines the non-complete OFDM symbol in the subframe in which the station performs CCA or eCCA success. Whether it can send a reserved signal on it;
  • CCA Clear Channel Assessment
  • eCCA Extended Clear Channel Assessment
  • the station transmits a reservation signal on the non-complete OFDM symbol when the station determines to be able to transmit;
  • the station When the station determines that the station is unable to transmit, the station sends a preset for notifying other stations to adjust the automatic gain control (AGC) in the first complete OFDM symbol after the non-complete OFDM symbol. sequence.
  • AGC automatic gain control
  • the determining, by the station, whether the reserved signal can be sent on the non-complete OFDM symbol in the subframe in which the CCA or the eCCA is successful includes:
  • the station determines that the reservation signal cannot be sent;
  • the station determines that the reservation signal can be sent.
  • the license aggregation and unlicensed bands can be efficiently aggregated by the Assisted Access (LAA) technology to effectively increase the data transmission rate.
  • LAA Assisted Access
  • the station since the OFDM symbol duration in the LTE system is not an integer multiple of the duration of a single CCA or eCCA (CCA/eCCA), the station (for example, the station is a base station) performs CCA.
  • non-complete OFDM symbols and complete OFDM symbols are generated in the subframe in which CCA/eCCA is performed (for example, the time when the station performs CCA/eCCA success, just aligned with the OFDM symbol boundary, the length of the non-complete OFDM symbol 0, or the distance from the OFDM symbol boundary is less than the single CCA/eCCA duration).
  • the user data is generally transmitted by using the complete OFDM symbol.
  • the station needs to send the reserved signal, and the reserved signal is sent in the unlicensed carrier, in order to prevent the unlicensed carrier from being
  • the signal sent by other stations to occupy the channel can also be called the occupancy signal.
  • the receiving end (for example, the subordinate UE of the station) needs to temporarily adjust the automatic gain control (AGC) to receive the data in the unlicensed carrier next time.
  • AGC automatic gain control
  • the signal is the most efficient. Since the receiving end adjusts the AGC, it is generally required to use the known sequence sent by the transmitting end (the station). There are many specific adjustment methods for the receiving end to adjust the AGC, and reference can be made to common knowledge. Therefore, the station preempting the unlicensed carrier needs to transmit a known sequence in order to support the receiving end to adjust the AGC, and the known sequence may also be part of the reserved signal.
  • the station When the station preempts the unlicensed carrier, the station confirms the duration of the non-complete OFDM symbol generated in the unlicensed carrier by referring to the subframe of the authorized carrier that is not aggregated by the unlicensed carrier, and the OFDM symbol timing, and confirms the non-complete OFDM symbol according to the duration. Whether the reserved signal can be sent.
  • station If station The point acknowledgment can be sent, the station sends the reserved signal in the non-complete OFDM symbol, and the station does not use the resource to send the sequence for supporting the AGC adjustment in the first complete OFDM symbol after the non-complete OFDM symbol, thereby saving Part of the resource, and the first complete OFDM symbol resource can be used to transmit user data; if the acknowledgment cannot be sent, or does not need to be sent, the station uses resource transmission in the first complete OFDM symbol to support AGC adjustment. sequence.
  • the receiving end (for example, the UE subordinate to the station), if receiving the reserved signal in the non-complete OFDM symbol, uses the reserved signal setting to adjust the AGC, and confirms that the station is the first one after the non-complete OFDM symbol
  • the sequence for adjusting the AGC is no longer sent in the complete OFDM symbol, and is considered to be valid user data in the resource of the first complete OFDM symbol; if the reserved signal in the unlicensed carrier is not received, the receiving end confirms the site A sequence for adjusting the AGC is transmitted in the first complete OFDM symbol, and the receiving end receives the sequence and uses it for AGC adjustment, and determines that the resource corresponding to the sequence does not include valid user data.
  • the station When the station preempts the unlicensed carrier, the station confirms the duration of the non-complete OFDM symbol generated in the unlicensed carrier by referring to the subframe of the authorized carrier that is not aggregated by the unlicensed carrier, and the OFDM symbol timing, and confirms the non-complete OFDM symbol according to the duration. Whether the reserved signal can be sent. If the station acknowledgment can be sent, the station transmits the reserved signal in the non-complete OFDM symbol, while the station still uses the resource in the first complete OFDM symbol to send the sequence for supporting the AGC adjustment; if the acknowledgment cannot be sent, or To be sent, the station uses the resources in the first complete OFDM symbol to send a sequence for supporting AGC adjustment.
  • the receiving end (for example, the UE subordinate to the station), if receiving the reserved signal in the non-complete OFDM symbol, adjusts the AGC using the reserved signal setting in the non-complete OFDM symbol, and the first complete OFDM symbol afterwards
  • the resource used in the sequence for transmitting the adjusted AGC in the first complete OFDM symbol is removed; if the reserved signal in the unlicensed carrier is not received, the receiving end confirms that the station is the first one after A sequence for adjusting the AGC is transmitted in the complete OFDM symbol, and the receiver receives the sequence and uses it for AGC adjustment.
  • the solution of the second embodiment improves the reliability of the station transmitting the reserved signal and the receiving end receiving the reserved signal.
  • an embodiment of the present invention further provides a data transmission method, where the method includes:
  • the station performs CCA or eCCA (CCA/eCCA) on the unlicensed carrier according to a predefined or semi-statically adjusted frame period; wherein the location where the station starts performing CCA/eCCA is located in the first subframe within the frame period From any point in time after the time point N;
  • the station transmits a reservation signal in a subframe in which a CCA/eCCA is performed or a remaining time region in which a CCA/eCCA slot is performed, or transmits data in a complete OFDM symbol in the remaining time region, or Data is transmitted from the next subframe of the subframe in which the CCA/eCCA is performed or the next slot of the slot in which the CCA/eCCA is performed.
  • the location at which the site first starts CCA/eCCA may be determined according to system configuration or randomly selected by the site.
  • the subsequent location of the site to perform CCA/eCCA is adjusted according to the results of the site's previous/pre-L times (L value pre-agreed) CCA/eCCA, as follows:
  • the station When the number of consecutive CCA or eCCA failures reaches the predetermined threshold in the preset statistical time, the station will perform the CCA or eCCA position one or more unit times before executing the CCA/eCCA; or
  • the station When the station reaches the predetermined threshold for the consecutive or cumulative CCA or eCCA success times within the preset statistical time, the station delays the execution of the CCA or eCCA location by one or more unit times or reconfigures the execution of the CCA or eCCA. Position (including the default configuration to the last same location) or randomly select the location to perform CCA or eCCA, and then perform CCA/eCCA;
  • the unit time is a duration of performing one CCA or eCCA, or a duration of one OFDM symbol, or two OFDM symbol durations.
  • the time before the station performs CCA or eCCA (including the time when the station performs CCA or eCCA) is a blank area, and the station does not send any data in the blank area; N or blank
  • the area duration is a predefined value determined according to the length of the frame period and the regulations of the national or regional regulations regarding the unlicensed carrier.
  • the interval duration from the start of the frame period to the point N is not less than 5% of the length of the frame period, including a single CCA/eCCA duration.
  • the system sets the LBT position and duration in the frame period. For example, setting a frame period of 2ms, 4ms or 10ms defines an LBT slot (performed according to the LTE protocol) or a subframe in which the length of the CCA/eCCA is fixed but starts. The location is not fixed. Moreover, the frame structure before the execution of CCA or eCCA is a blank area, and the number of symbols of the blank area should meet the regulatory requirements (minimum 5% of the frame length).
  • the time of adding a CCA/eCCA to the blank area is at least 2 OFDM symbols; for a frame period of 4 ms, the time of adding a CCA/eCCA to the blank area is at least 3 OFDM symbols; for a frame period of 10 ms, Then, the time when the blank area is added to the CCA/eCCA is at least 7 OFDM symbols; the remaining OFDM symbols of the time slot or the subframe are used to transmit the occupied signal.
  • the location system definition of the LBT time slot or subframe where the CCA or eCCA is defined for the first time at each site is the same, or is randomly selected by the site.
  • the symbol position at which the site starts CCA or eCCA is adjusted according to the statistics of the number of times the site performs CCA or eCCA success and/or the duration of the occupation.
  • the site will perform the CCA/eCCA symbol or position continuously one unit time, for example, The duration of one CCA or eCCA, or the duration of one OFDM symbol, or the duration of two OFDM symbols, until the location where the station performs CCA or eCCA falls within the blank area corresponding to other stations, that is, the station performs CCA or eCCA Success till.
  • a station consecutive CCA/eCCA succeeds m (m>predefined threshold M, M is a positive integer)
  • the symbol position of the LBT slot or subframe in which the station performs CCA or eCCA next time is reset to the system.
  • the defined location, or the site is continuously delayed according to the unit time, that is, the blank area of the site is continuously enlarged, so that the CCA or eCCA of other sites enters the blank area of the site, and the access is earlier than the site.
  • the value of the predefined threshold T, M is related to the length of the frame period.
  • T When the frame period is long, T The values of and M are small; when the frame period is short, the values of T and M are large.
  • the values of T and M can be 3 and 4 respectively; when the frame period is 10 ms, the values of T and M can be 2 and 1, respectively.
  • each station As described with reference to FIG. 6, it is assumed that the frame period adopted by each station is 2 ms, and the location where each operator's site performs CCA or eCCA may be located in the first subframe or the first slot in the frame period from the second. Any symbol position after the symbol. If the site of the operator 2 performs the CCA or eCCA for the first time and the fourth symbol is not successfully detected, the second time can be changed to the second symbol to perform CCA or eCCA, due to the blank of the site falling into the operator 1. CCA/eCCA is successful in the region.
  • the station of the operator 2 preempts the unlicensed carrier successfully, the station needs to send a reservation signal in a time interval between the end position where the CCA or CCA is executed and the timing at which the data starts transmission.
  • the reserved signal is used to occupy the carrier on the one hand, and can perform some measurements on the other hand, such as RRM measurement or channel quality measurement, AGC adjustment and the like.
  • the reserved signal is a preamble sequence, a reference signal, or part of user data.
  • the reserved signal may also carry the operator information, and notify other stations of the operator 2 to perform data transmission on the unlicensed carrier, or the reserved signal may also carry the cell identifier, and notify other devices belonging to the same cell as the station.
  • the UE implements uplink multi-user multiplexing.
  • the remaining time slots of the subframe in which the LBT slot is located are used to transmit part of the data of the user, or to transmit a Primary Synchronization Signal (PSS) or a Secondary Synchronization Signal (SSS), and a cell-specific pilot ( Cell-specific Reference Signal (CRS), Channel Status Information-Reference Signal (CSI-RS) or Sounding Reference Signal (SRS) or preamble sequence.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CRS Cell-specific Reference Signal
  • CSI-RS Channel Status Information-Reference Signal
  • SRS Sounding Reference Signal
  • the method provided by the embodiment of the present invention can be used to randomize the time when different stations access the unlicensed carrier, and solve the problem that the LTE system encounters when accessing the unlicensed carrier frequency band. Collision problems and unfairness issues increase spectral efficiency.
  • the embodiment of the invention further provides a method for solving a fair access unlicensed carrier, the method comprising:
  • the stations of different operators use different starting positions of the execution CCA/eCCA in the frame period, and cause the starting positions of the stations of different operators to alternately appear before each other.
  • the operator initiates the location of the CCA/eCCA by negotiating the starting location of the CCA/eCCA and configuring the site by OAM (Operation and Maintenance Management).
  • OAM Operaation and Maintenance Management
  • the operator's site when the operator's site sets the starting location of its own CCA/eCCA, it first receives the CCA/eCCA location information already configured in the unlicensed carrier and other neighboring operators' sites, where the location information is Describe the site's range of CCA/eCCA locations in the time direction; then determine their CCA/eCCA locations in an alternating, prior to each other.
  • the station that has determined its own CCA/eCCA location information sends the information through a broadcast mode or an X2 port or an S1 port through an authorized carrier or an unlicensed carrier.
  • the location start time precedes other carriers.
  • Q when there are Q operators, setting consecutive Q frame periods as an alternate cycle period, respectively setting CCA/eCCA of the first to Qth carriers in 1 to Q frame periods respectively.
  • the location start time precedes other carriers.
  • Q when Q is 3, then 3 frame periods are an alternate cycle period.
  • the CCA/eCCA position of the first operator is set before the CCA/ of the other two carriers.
  • eCCA position set the CCA/eCCA position of the second operator before the CCA/eCCA position of the other two carriers in the second frame period of the cycle
  • in the third frame period of the cycle set The third operator's CCA/eCCA location precedes the other two carriers' CCA/eCCA locations.
  • a fixed time range is set for the CCA/eCCA in the frame structure, such as the G duration in FIG.
  • the stations of the operator 1 and the operator 2 perform CCA/eCCA within the range of the G duration, and cause the time positions in which the CCA/eCCA is performed in the frame period alternately to appear before each other alternately.
  • the operator 1 and the operator 2 negotiate and configure the respective sites in the OAM manner so that the time positions of the CCA/eCCAs are alternated with each other, appearing before each other.
  • the site of the carrier 1 precedes the carrier 2 in the first frame period, so that the carrier 1 sends a reservation after performing the CCA/eCCA (performing CCA/eCCA success).
  • operator 2 The site is still performing CCA/eCCA (unfinished). At this time, it will find that there is signal transmission in the unlicensed carrier, so that the unlicensed carrier is busy in the second half of the CCA/eCCA execution, and thus the unlicensed carrier cannot be preempted. .
  • the CCA/eCCA starting position of the operator 1 is set to be later than the carrier 2, and the station 2 of the operator 2 performs the CCA/eCCA success, and the operator 1 fails. Therefore, the operator 2 obtains the unauthorized carrier usage right in the second frame period.
  • the third frame period repeats the CCA/eCCA start position setting of the first frame period
  • the fourth frame period repeats the CCA/eCCA start position setting of the second frame period, and so on.
  • the station of the operator 1 performs the CCA/eCCA and sends the reservation signal, and the station of the operator 2 has the data transmission again.
  • the operator 2 performs CCA/eCCA, the right to use the unlicensed carrier can still be obtained.
  • the problem of waste of resources and demand mismatch caused by directly allocating resources in an alternate time division manner is avoided (for example, the first frame period usage right is allocated to the operator 1 and the second frame period usage right is allocated to the operator 2, This type of push; however, at the first frame period, the operator 1's site does not have the need to send data, while the operator 2 has the need to send data, but the operator 2 cannot use the unlicensed carrier, thereby wasting resources.
  • This solution only provides a fair access opportunity, which is a good solution to the waste problem when resources and requirements do not match.
  • the location of each frame period is determined according to the number of local operators, and the fairness is guaranteed.
  • the sites of other operators receive the relevant CCA/eCCA location information sent by the station that has used the carrier before using the unlicensed carrier, and then determine their own CCA/eCCA location according to the fairness principle and put their own CCA.
  • the /eCCA location information is sent by broadcast or X2/S1.
  • the fairness principle can be adopted in the following manner. For example, if there are Q operators, the first to the Qth operators are respectively set in 1 to Q frame periods in a continuous Q frame period as one cycle.
  • the CCA/eCCA location start time precedes other carriers.
  • the CCA/eCCA location information may also be obtained by means of air interface interaction.
  • the station of the operator 1 broadcasts the information of its own CCA location through the authorized carrier or the unlicensed carrier, and the station of the operator 2 who plans to use the unlicensed carrier needs to listen first. Detect the CCA location information of the sites of the different carriers that have been deployed nearby, and then determine the location information of the CCA to ensure the fairness of the access.
  • the division of modules is only a logical function division, and there may be another division manner in actual implementation.
  • the modules shown or discussed may be connected to each other through some interface, and may be in electrical, mechanical or other form.
  • the individual modules may or may not be physically separate, and may or may not be physical units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may be physically included separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of hardware plus software function modules.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, the method of implementing carrier multiplexing of the receiving end when the computer executable instructions are executed.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, the method for implementing carrier multiplexing of the transmitting end when the computer executable instructions are executed.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are implemented to implement the foregoing method for resolving a fair access unlicensed carrier.
  • the above-described integrated modules implemented in the form of software functional units can be stored in a computer readable storage medium.
  • the software functional modules described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), and a random access memory (Random).
  • ROM read-only memory
  • Random random access memory
  • the embodiments of the present invention provide a carrier multiplexing method and a site, which can implement multiplexing of unlicensed carriers occupied by a certain site between different sites, and improve utilization of unlicensed carriers.

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Abstract

一种载波复用的方法，包括：站点获取其他的站点发送的预设信息；其中，预设信息包括以下信息中的至少一个：该其他的站点占用的频率资源的复用条件信息、该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息、该其他的站点占用的频率资源的占用时长信息、该其他的站点所属的运营商信息；该站点根据预设信息复用该其他的站点占用的频率资源。上述方法能够实现某一站点占用的非授权载波在不同站点之间进行复用，提高非授权载波的利用率。

Description

一种载波复用的方法和站点 技术领域
本申请涉及但不限于移动无线通信技术，尤指一种载波复用的方法和站点。
背景技术
在长期演进系统(Long Term Evolution，LTE)的演进过程中，在2014年9月份，LTE第13版协议(LTE Rel-13)开始立项研究，其中，LTE Rel-13中一个重要的立项就是LTE系统使用非授权载波工作，非授权载波也即免授权频谱，是指在满足政府部门(例如国家无线电管理委员会)有关规定(无线电管制)的情况下，不需要授权就能直接使用的频谱或载波，例如目前的5GHz频段就属于非授权载波。由于非授权频谱具备准入要求低、成本低、频谱免费使用等优势，LTE系统中使用目前存在的非授权载波，将大大提升LTE系统的潜在频谱资源，能够使得LTE系统的频谱成本更低。
目前，现有的LTE系统中一个主要特征就是邻近小区的频率复用，从而提升频谱效率，但是现有技术中的频率复用都是在某一运营商独享的授权频段内实施的，并且不需要考虑对于其他运营商的小区的干扰问题。当LTE系统部署在非授权载波中时，由于该载波都是非授权的，并不属于某一运营商独享使用，而是由所有的运营商以及不同系统(例如LTE系统与无线局域网络(Wireless Local Area Networks，WLAN)系统)之间共享使用的。为了降低由于所有的运营商以及不同系统共享使用非授权载波时互相产生的干扰，在不少国家或地区存在对于非授权载波的国家管制。例如在欧洲，如果LTE系统在非授权载波中运营时，需要支持发送之前监听(Listen Before Talk，LBT)机制，管制中进一步给出了LBT机制下的两种帧结构需求以支持数据传输，分别为帧基于设备(Frame Based Equipment，FBE)方式和负载基于设备(Load Based Equipment，LBE)方式，对于FBE方式和LBE方式信道占用时间最大值分别为10ms、13ms，具体可参考欧洲电信标准协会(European Telecommunications Standards Institute，ETSI)指定的ETSI EN 301 893V1.7.1 (2012-06)的4.9节的内容。LBT机制简称“先听后说”机制，也就是说，当某一站点计划使用非授权载波时，它应该先监听是否有其他站点占用该非授权载波，当没有其他站点占用时，它才能使用该非授权载波。前述站点可以是基站(Node B)、演进型基站(eNode B)、家庭基站(Home Node B)、中继站(Relay Node，RN)、用户设备(User Equipment，UE)等可以使用非授权载波的设备。这种机制主要是为了避免：计划使用非授权载波的站点一旦直接使用非授权载波，将会对于邻近的其他正在使用非授权载波的站点带来干扰。
综上所述，现有的LTE系统使用非授权载波的技术方案中，存在以下问题：当想要使用非授权载波的站点监听到该非授权载波没有被其他站点占用时才能使用该非授权载波，该非授权载波的利用率低。
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。
本发明实施例提供了一种载波复用的方法和站点，能够实现站点占用的非授权载波在不同站点之间进行复用，提高非授权载波的利用率。
本发明实施例提供了一种载波复用的方法，该方法包括：
站点获取其他的站点发送的预设信息；其中，所述预设信息包括以下信息中的至少一个：所述其他的站点占用的频率资源的复用条件信息、所述其他的站点占用的频率资源的复用方式信息、所述其他的站点占用的频率资源信息、所述其他的站点占用的频率资源的占用时长信息、所述其他的站点所属的运营商信息；
所述站点根据所述预设信息复用所述其他的站点占用的频率资源。
可选地，
所述预设信息由第一下行控制信息(Downlink Control Information，DCI)承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
所述预设信息由信令承载，所述信令通过物理下行共享信道(Physical Downlink Shared Channel，PDSCH)发送，所述信令由第二DCI调度。
可选地，所述站点获取其他的站点发送的预设信息包括：
所述站点根据接收的所述其他的站点使用授权载波发送的信号，获取其他的站点发送的预设信息。
可选地，所述站点根据接收的所述其他的站点使用授权载波发送的信号，获取其他的站点发送的预设信息，包括：
所述站点通过检测所述授权载波中的信号中的子帧中的物理下行控制信道(Physical Downlink Control Channel，PDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识(Radio Network Temporary Identifier，RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
所述站点通过检测所述授权载波中的信号中的子帧中的增强物理下行控制信道(enhanced Physical Downlink Control Channel，ePDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
可选地，在所述站点获取其他的站点发送的预设信息之前，所述方法还包括：
所述站点执行空闲信道评估(Clear Channel Assessment，CCA)或扩展空闲信道评估(enhanced Clear Channel Assessment，eCCA)；
当所述站点执行CCA或eCCA忙时，所述站点接收所述其他的站点使用非授权载波发送的包含预设信息的信号；
相应的，所述站点获取其他的站点发送的预设信息包括：
所述站点根据接收的所述非授权载波中的信号获取所述预设信息。
可选地，所述站点根据接收的所述非授权载波中的信号获取所述预设信息包括：
所述站点通过检测所述非授权载波中的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识(RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
所述站点通过检测所述非授权载波中的信号中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识(RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
可选地，所述预设的无线网络临时标识(RNTI)包括：
预先约定，且与所述站点所属的运营商对应的RNTI；或，
预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
可选地，
所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议(LTE Rel-12)中包含的DCI的格式中的任意一种；或，
所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
本发明实施例还提供了一种载波复用的方法，该方法包括：
站点执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)；
当所述站点执行CCA或eCCA成功、获得非授权载波的使用权后，所述站点发送预设信息；
其中，所述预设信息包括以下信息中的至少一个：所述站点占用的频率资源的复用条件信息、所述站点占用的频率资源的复用方式信息、所述站点占用的频率资源信息、所述站点占用的频率资源的占用时长信息、所述站点所属的运营商信息。
可选地，
所述预设信息由第一下行控制信息(DCI)承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
所述预设信息由信令承载，所述信令通过物理下行共享信道(PDSCH)发送，所述信令由第二下行控制信息(DCI)调度。
可选地，
所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧承载；或，
所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧之后抢占的子帧承载。
可选地，所述站点发送预设信息包括：
所述站点使用所述站点执行CCA或eCCA成功的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
所述站点使用所述站点执行CCA或eCCA成功的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
所述站点使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
所述站点使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
可选地，
所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧承载；或，
所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧承载。
可选地，所述站点发送预设信息包括：
所述站点使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
所述站点使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
所述站点使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
所述站点使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
可选地，所述第一DCI或所述第二DCI是由所述站点使用预设的无线网络临时标识(RNTI)进行加扰的。
可选地，所述预设的RNTI包括：
预先约定，且与所述站点所属的运营商对应的RNTI；或，
预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
可选地，
所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议(LTE Rel-12)中包含的DCI的格式中的任意一种；或，
所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
本发明实施例提供了一种站点，该站点包括：
获取单元，设置为：获取其他的站点发送的预设信息；其中，所述预设信息包括以下信息中的至少一个：所述其他的站点占用的频率资源的复用条件信息、所述其他的站点占用的频率资源的复用方式信息、所述其他的站点 占用的频率资源信息、所述其他的站点占用的频率资源的占用时长信息、所述其他的站点所属的运营商信息；
复用单元，设置为：根据所述获取单元获取的所述预设信息复用所述其他的站点占用的频率资源。
可选地，
所述预设信息由第一下行控制信息(DCI)承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
所述预设信息由信令承载，所述信令通过物理下行共享信道(PDSCH)发送，所述信令由第二DCI调度。
可选地，所述获取单元是设置为：
根据接收的所述其他的站点使用授权载波发送的信号，获取其他的站点发送的预设信息。
可选地，所述获取单元是设置为：
通过检测所述授权载波中的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识(RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
通过检测所述授权载波中的信号中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识(RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
可选地，所述站点还包括：
评估单元，设置为：在所述获取单元获取其他的站点发送的预设信息之前，执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)；
接收单元，设置为：当所述评估单元执行CCA或eCCA忙时，接收所述其他的站点使用非授权载波发送的包含预设信息的信号；
相应的，所述获取单元是设置为：根据所述接收单元接收的所述非授权载波中的信号获取所述预设信息。
可选地，所述获取单元是设置为：
通过检测所述非授权载波中的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识(RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
通过检测所述非授权载波中的信号中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识(RNTI)解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
可选地，所述预设的无线网络临时标识(RNTI)包括：
预先约定，且与所述站点所属的运营商对应的RNTI；或，
预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
可选地，
所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议(LTE Rel-12)中包含的DCI的格式中的任意一种；或，
所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
本发明实施例提供了一种站点，该站点包括：
评估单元，设置为：执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)；
发送单元，设置为：当所述评估单元执行CCA或eCCA成功、获得非授权载波的使用权后，发送预设信息；
其中，所述预设信息包括以下信息中的至少一个：所述站点占用的频率 资源的复用条件信息、所述站点占用的频率资源的复用方式信息、所述站点占用的频率资源信息、所述站点占用的频率资源的占用时长信息、所述站点所属的运营商信息。
可选地，
所述预设信息由第一下行控制信息(DCI)承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
所述预设信息由信令承载，所述信令通过物理下行共享信道(PDSCH)发送，所述信令由第二DCI调度。
可选地，
所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧承载；或，
所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧之后抢占的子帧承载。
可选地，所述发送单元是设置为：
使用所述站点执行CCA或eCCA成功的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
使用所述站点执行CCA或eCCA成功的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
可选地，
所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧承载；或，
所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧承载。
可选地，所述发送单元是设置为：
使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
可选地，所述第一DCI或所述第二DCI是由所述发送单元使用预设的无线网络临时标识(RNTI)进行加扰的。
可选地，所述预设的无线网络临时标识(RNTI)包括：
预先约定，且与所述站点所属的运营商对应的RNTI；或，
预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
可选地，
所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议(LTE Rel-12)中包含的DCI的格式中的任意一种；或，
所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
本发明实施例提供了一种信息发送方法，该方法包括：
当站点执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)成功、获得非授权载波的使用权后，所述站点判断在所述站点执行CCA或eCCA成功的子帧中的非完整正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号上是否能够发送预留信号；
当所述站点判断能够发送时，所述站点在所述非完整OFDM符号上发送预留信号；
当所述站点判断不能够发送时，所述站点在所述非完整OFDM符号之后的第一个完整OFDM符号中发送用于通知其他的站点调整动态增益控制(Automatic Gain Control，AGC)的预设序列。
可选地，所述站点判断在所述站点执行CCA或eCCA成功的子帧中的非完整OFDM符号上是否能够发送预留信号包括：
所述站点根据与所述非授权载波聚合的授权载波的子帧以及所述授权载波的OFDM符号定时，确定所述非完整OFDM符号的时长；
当所述时长等于0或小于单次所述站点执行CCA或eCCA的时长时，则所述站点判断不能发送所述预留信号；
当所述时长大于或等于单次所述站点执行CCA或eCCA的时长时，则所述站点判断能发送所述预留信号。
本发明实施例提供了一种数据传输方法，该方法包括：
站点按预定义或半静态调整的帧周期对非授权载波进行CCA或eCCA(CCA/eCCA)；其中，所述站点开始执行CCA/eCCA的位置位于所述帧周期内的第一个子帧内从时刻点N之后的任意时刻点位置；
在所述帧周期内，所述站点在执行CCA/eCCA的子帧或执行CCA/eCCA的时隙的剩余时间区域发送预留信号或在所述剩余时间区域内的完整OFDM符号中发送数据，或者从所述执行CCA/eCCA的子帧的下一子帧或所述执行CCA/eCCA的时隙的下一个时隙开始传输数据。
本发明实施例提供了一种解决公平接入非授权载波的方法，该方法包括：
不同运营商的站点在帧周期内使用不同的执行CCA/eCCA的起始位置， 且使得不同运营商的站点的所述起始位置交替的、先于彼此出现。
可选地，所述方法还包括：在帧周期内为CCA/eCCA设置固定的时间范围，在该时间范围内每个运营商配置或设置站点执行CCA/eCCA的起始位置。
可选地，所述方法还包括：
运营商通过操作维护管理对于站点进行配置CCA/eCCA的起始位置；或者，
运营商的站点在设置CCA/eCCA的起始位置时，先接收邻近的其他运营商的站点中配置的CCA/eCCA位置信息，然后再按照交替的、先于彼此出现的原则确定自己的CCA/eCCA位置；其中，所述位置信息为描述该站点在时间方向一系列的CCA/eCCA位置。
可选地，所述使得不同运营商的站点的所述起始位置交替的、先于彼此出现，是指：
当有Q个运营商时，设置连续的Q个帧周期作为一个交替的循环周期，分别在1至Q个帧周期中分别设置第1个至第Q个运营商的CCA/eCCA位置起始时间分别先于其他运营商，其中，Q为大于1的整数。
与现有技术相比，本发明实施例提供的一种载波复用的方法和站点，站点获取其他的站点发送的预设信息；其中，预设信息包括以下信息中的至少一个：该其他的站点占用的频率资源的复用条件信息、该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息、该其他的站点占用的频率资源的占用时长信息、该其他的站点所属的运营商信息；该站点根据预设信息复用该其他的站点占用的频率资源。通过本发明实施例提供的技术方案，能够实现某一站点占用的非授权载波在不同站点之间进行复用，提高非授权载波的利用率。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
附图用来提供对本申请技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本申请的技术方案，并不构成对本申请 技术方案的限制。
图1为本发明实施例提供的一种载波复用的方法的流程示意图；
图2为本发明实施例提供的一种载波复用的方法的另一流程示意图；
图3为本发明实施例提供的一种站点的结构示意图一；
图4为本发明实施例提供的一种站点的结构示意图二；
图5为本发明实施例提供的一种站点的结构示意图三；
图6为本发明实施例提供的一种数据传输方法具体实施时的示意图。
图7为本发明实施例提供的一种解决公平接入非授权载波的方法具体实施时的示意图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。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系统中执行。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。
本发明实施例中的站点可以是基站(Node B)、演进型基站(eNode B)、家庭基站(Home Node B)、中继站(Relay Node，RN)、用户设备(User Equipment，UE)等可以使用非授权载波的设备。
空闲信道评估(Clear Channel Assessment，CCA)或扩展空闲信道评估(enhanced Clear Channel Assessment，eCCA)是指在无线通信系统中，当站点需要在某一载波上发送数据之前，首先在这个载波上进行接收，如果经过给定的时间，没有发现有其他站点在此载波上发送数据，则开始发送(也即执行CCA成功、获得该载波的使用权)；如果发现有其他站点在发送数据，则随机避让一段时间后再次重试此过程。该方法能够有效地避免无线信道上的冲突，也叫做载波侦听多点接入/避免冲撞(Carrier Sense Multiple Access with Conflict Avoidance，CSMA/CA)。
本发明实施例提供一种载波复用的方法，其中，站点基于接收端，如图1所示，该方法包括以下步骤：
步骤101、站点获取其他的站点发送的预设信息。
其中，预设信息包括以下信息中的至少一个：该其他的站点占用的频率资源的复用条件信息、该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息、该其他的站点占用的频率资源的占用时长信息、该其他的站点所属的运营商信息。
对于上述的预设信息，其中，其他的站点占用的频率资源的复用条件信息为该其他的站点设置的资源复用条件。其他的站点占用的频率资源的复用条件可以包括：该其他的站点支持任意系统(例如LTE系统或无线局域网络WLAN系统)下的任意运营商的相邻站点资源复用；或者，该其他的站点支持同一系统(例如LTE系统)下的任意运营商的相邻站点资源复用；或者，该其他的站点支持属于同一运营商的同一系统下的相邻站点资源复用；或者，该其他的站点支持属于同一运营商的任意系统下的相邻站点资源复用；或者，该其他的站点设置为不支持邻近站点资源复用。该其他的站点占用的频率资源的复用方式可以包括：频分复用；时分复用；码分复用。该其他的站点占用的频率资源信息包括：该其他的站点占用的信道信息(例如站点占用非授权载波5GHz其中的一个信道)、该其他的站点占用频率资源的时长信息(例如站点在LBE方式下占用一个信道11ms)。该其他的站点占用的频率资源的占用时长信息是指该其他的站点计划使用占用的频率资源的时长信息。该其他的站点所属的运营商信息可以按照国家或地区进行对应的申请。例如运营商信息的描述可以分为：地区和/或国家标识(例如中国大陆地区的标识为+86)和在该地区和/或国家内的标识(例如编号)；还可以直接为运营商设置全球唯一的标识。
需要特别说明的是，大部分情况下，不同的运营商之间的站点是不支持载波复用的，因此，一个站点发送的预设信息中需要包括该站点所属的运营商信息，但是在一些情况下，该站点发送的预设信息中也可以不包括该站点所属的运营商信息，此时，预设信息中需要包括前述的可选的其他信息。例如一种可以预见的场景为：当在某一国家或地区或通过标准化方式，对于非 授权载波允许邻近站点复用使用且不限于邻近复用的站点是否为同一运营商时，则站点发送的预设信息中可以不包括该站点所属的运营商信息，只需包括前述可选的其他信息即可。如果对于邻近站点复用限制为同一运营商的站点可以复用时，则站点发送的预设信息中需至少包括该站点所属的运营商信息。
步骤102、该站点根据预设信息复用该其他的站点占用的频率资源。
示例性的，以上述中的大部分情况为例，假设预设信息中包括：该其他的站点占用的频率资源的复用条件信息以及该其他的站点所属的运营商信息，其中，该其他的站点占用的频率资源的复用条件信息具体为：该其他的站点支持同一系统下的任意运营商的相邻站点资源复用且该站点与该其他的站点属于同一系统下的站点，该站点与该其他的站点同属一运营商，则该站点根据前述复用条件信息、该其他的站点所属的运营商信息判断能够复用该其他的站点占用的频率资源。可选地，假设预设信息中还包括：该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息以及该其他的站点占用的频率资源的占用时长信息，其中，前述复用方式信息例如为频分复用，则该站点根据该其他的站点占用的时长以及该其他的站点使用的时长确定剩余的该站点可用的时长，并在该非授权载波中将该其他的站点占用的频率资源剔除掉，以确定该站点可用的频率资源，然后该站点以频分复用的方式在该站点可用的时长内使用该站点可用的频率资源。
还需要说明的是，该其他的站点在抢占非授权载波时会占用较长的时间，例如该其他的站点在LBT机制下的FBE方式下，最多可以抢占到非授权载波10ms(一个子帧为1ms，10ms也即10个子帧)的使用权，该其他的站点一般只使用其中的几个子帧完成数据传输，对于剩余的子帧，在现有的技术方案中，如果该其他的站点不继续使用剩余的子帧则只能浪费掉，无法由另外的站点(例如上述接收到预设信息的该站点)进行复用，然而，通过本发明实施例提供的技术方案，该其他的站点在抢占到该非授权载波的使用权(例如10个子帧的使用权)后向该站点发送预设消息(例如该预设消息表明：该其他的站点使用2个子帧后剩余的8个子帧支持以频分复用的方式复用)，从而可以使该站点根据接收的预设信息复用该其他的站点占用的非授权载波 (例如以频分复用的方式复用剩余的8个子帧)，能使非授权载波被最大限度地利用，提高载波利用效率。
可选地，本发明实施例中的预设信息还可以包括以下信息中的至少一种：该其他的站点所在的小区标识ID、该其他的站点占用的频率资源的子帧号、该其他的站点占用的频率资源的上行子帧或下行子帧的位置。举例说明，该其他的站点以基站为例，该站点以该其他的站点下属的UE为例，抢占非授权载波成功的基站向其下属的UE发送的预设信息中包括上述的三种信息，可以使下属UE获知该基站已获得非授权载波使用权，以及该基站占用的非授权载波的子帧中哪些是上行、下行子帧，这样，该基站下属的UE不仅可以复用该基站占用的子帧，还可以在下行子帧中执行测量，例如信道状态信息(Channel Status Information，CSI)测量或无线资源管理(Radio Resource Management，RRM)测量。另外，对于该其他的站点周围临近的一些站点，例如该基站邻近的基站或不属于该基站下属的UE，这些站点也是可以利用预设信息中包括的上述的三种信息获知下行子帧位置，从而也可以执行干扰测量，以便后续使用干扰测量的结果减小信号干扰。
可选地，
上述预设信息由第一下行控制信息(Downlink Control Information，DCI)承载，该预设信息由第一DCI的格式中约定的部分比特或全部比特来描述；或，
预设信息由信令承载，该信令通过物理下行共享信道(Physical Downlink Shared Channel，PDSCH)发送，该信令由第二DCI调度。
需要说明的是，上述第一DCI与第二DCI的表述方式仅是为了描述方便而进行的区分，并不存在顺序上的限定。
对于上述的由第一DCI承载预设信息的实现方式，技术人员可以预先对第一DCI的格式中约定的部分或全部比特的取值的含义进行重新定义，使第一DCI的格式中的比特的取值与本发明实施例中的预设信息中包括的各个信息的具体内容相对应，从而实现由第一DCI来承载本发明实施例中的预设信息。举例进行说明，假设第一DCI格式固定为DCI 1A(仅是假设，具体选择哪一种DCI格式是需要通过标准协议固定的)，通过对其中的部分或全部比 特的含义进行重新定义，使得重新定义的比特的含义与上述实施例中预设信息中包括的各个信息形成对应的关系，并使重新定义后的第一DCI的格式中的比特的含义成为公认的协议规定。
对于上述的由信令承载预设信息的实现方式，通过配置信令来承载本发明实施例中的预设信息，该信令通过PDSCH发送，第二DCI来调度该信令，其中，PDSCH是现有的LTE系统中的一种物理下行信道，由DCI调度信令以及在LTE系统中配置信令是本领域技术人员的惯用技术手段，在此不做详细介绍。
可选地，本发明实施例中第一DCI或第二DCI的格式为LTE Rel-12中包含的DCI的格式中的任意一种；或，所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
示例性的，第一DCI或第二DCI的格式可以是以下现有的DCI格式中的任意一种：DCI 0、DCI 1A、DCI 1B、DCI 1C、DCI 1D、DCI 2、DCI 2A、DCI 2、DCI 3、DCI 3A。前述10种格式仅是对现有的DCI格式的部分列举，并不是全部。LTE系统一直在不断演进，在后续演进过程中还可能规定新的DCI格式，第一DCI或第二DCI的格式也可以是以后LTE版本协议中新增的DCI格式中的任意一种。
可选地，该站点获取该其他的站点发送的预设信息可以为：
该站点根据接收的该其他的站点使用授权载波发送的信号，获取该其他的站点发送的预设信息。
其中，当该其他的站点抢占到非授权载波的使用权后，该其他的站点可以利用授权载波的信号来发送预设信息。当该站点也可使用该其他的站点可以使用的授权载波时，则该站点可以接收到该其他的站点使用授权载波发送的信号，并根据接收的授权载波的信号获取该其他的站点发送的预设信息。
其中，该站点根据接收的该其他的站点使用授权载波发送的信号，获取该其他的站点发送的预设信息包括：
该站点通过检测授权载波中的信号中的子帧中的物理下行控制信道(Physical Downlink Control Channel，PDCCH)中的公共搜索空间或约定的搜 索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(Radio Network Temporary Identifier，RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息；或，
该站点通过检测授权载波中信号中的子帧中的增强物理下行控制信道(enhanced Physical Downlink Control Channel，ePDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息。
需要说明的是，该其他的站点可以按照站点之间约定的以现有发送DCI的方式将第一DCI或第二DCI承载在授权载波子帧中的PDCCH或ePDCCH中的公共搜索空间或约定的搜索空间进行发送，然后该站点就可以在授权载波的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取，其中约定的搜索空间可以通过标准化协议规定。
可选地，在该站点获取该其他的站点发送的预设信息之前，上述方法还可以包括：
该站点执行CCA或eCCA；
当该站点执行CCA或eCCA忙时，该站点接收所述其他的站点使用非授权载波发送的包含预设信息的信号；
相应的，该站点获取该其他的站点发送的预设信息为：
根据接收的所述非授权载波中的信号获取其他的站点发送的预设信息。
对于上述情况，需要特别说明的是，当该站点与其他的站点同时执行CCA或eCCA抢占非授权载波的使用权，而其他的站点先抢到非授权载波的使用权，即该站点执行CCA或eCCA忙时，该站点可以不执行现有CCA或eCCA中的随机避让，而是继续接收其他的站点抢占到该非授权载波的使用权后在该非授权载波的信号中发送的预设信息，从而可以获取其他的站点发送的预设信息。
可选地，该站点根据执行CCA或eCCA时接收的非授权载波中的信号，获取该其他的站点发送的预设信息包括：
该站点通过检测非授权载波中的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息；或，
该站点通过检测非授权载波中的信号中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息。
需要说明的是，该其他的站点可以按照站点之间约定的以现有发送DCI的方式将第一DCI或第二DCI承载在非授权载波子帧中的PDCCH或ePDCCH中的公共搜索空间或约定的搜索空间进行发送，然后该站点就可以在非授权载波的信号中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间来获取，其中约定的搜索空间可以通过标准化协议规定。
可选地，对于步骤102，根据执行CCA或eCCA时接收的非授权载波中的信号，获取该其他的站点发送的预设信息可以为：
该站点使用预设的RNTI解扰第一DCI，获取预设信息；或，
该站点使用预设的RNTI解扰第二DCI，根据第二DCI获取信令，解析该信令以获取预设信息。
其中，该其他的站点可以使用预设无线网络临时标识(Radio Network Temporary Identifier，RNTI)对第一DCI中的循环冗余校验(Cyclic Redundancy Check，CRC)比特或第二DCI中的CRC比特加扰，该站点利用该预设的RNTI对第一DCI中的CRC比特或第二DCI中的CRC比特解扰，从而获取第一DCI或第二DCI。其中，利用RNTI加扰或者解扰DCI中的CRC比特属于现有的技术手段，在此不做详细说明。
可选地，预设的无线网络临时标识(RNTI)包括：
预先约定，且与该站点所属的运营商对应的RNTI；或，
预先约定，且与第一DCI或第二DCI对应的RNTI。
示例性的，预设的RNTI可以是该站点接收该其他站点通过系统广播发 送的用于加扰第一DCI或第二DCI时的与该站点所属运营商对应的RNTI。预设的RNTI还可以是通过标准化协议的方式约定一个RNTI作为加扰第一DCI或第二DCI时专用的DCI，例如可以将约定的RNTI记为O-RNTI，这样站点在作为发送端时按照标准化协议使用O-RNTI，同样接收端也按照标准化协议使用O-RNTI。预设的RNTI还可以是预先约定的，且与第一DCI或第二DCI对应的RNTI。
需要说明的是，当该站点使用与该站点所属的运营商对应的RNTI加扰第一DCI或第二DCI时，由于该RNTI与运营商是对应的，因此，上述实施例中的预设信息也可以不包括该站点对应的运营商信息。
本发明实施例提供的载波复用的方法，站点获取其他的站点发送的预设信息；其中，预设信息包括以下信息中的至少一个：该其他的站点占用的频率资源的复用条件信息、该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息、该其他的站点占用的频率资源的占用时长信息、该其他的站点所属的运营商信息；该站点根据预设信息复用该其他的站点占用的频率资源。通过本发明实施例提供的技术方案，能够实现某一站点占用的非授权载波在不同站点之间进行复用，提高非授权载波的利用率。
本发明实施例还提供的一种载波复用的方法，其中，站点基于发送端，如图2所示，该方法包括以下步骤：
步骤201、站点执行CCA或eCCA。
步骤202、当该站点执行CCA或eCCA成功、获得非授权载波的使用权后，该站点发送预设信息。
其中，预设信息包括以下信息中的至少一个：该站点占用的频率资源的复用条件信息、该站点占用的频率资源的复用方式信息、该站点占用的频率资源信息、该站点占用的频率资源的占用时长信息、该站点所属的运营商信息。
对于上述的预设信息，其中，站点占用的频率资源的复用条件信息为该站点设置的资源复用条件。站点占用的频率资源的复用条件可以包括：该站点支持任意系统(例如LTE系统或无线局域网络WLAN系统)下的任意运 营商的相邻站点资源复用；或者，该站点支持同一系统(例如LTE系统)下的任意运营商的相邻站点资源复用；或者，该站点支持属于同一运营商的同一系统下的相邻站点资源复用；或者，该站点支持属于同一运营商的任意系统下的相邻站点资源复用；或者，该站点设置为不支持邻近站点资源复用。站点占用的频率资源的复用方式可以包括：频分复用；时分复用；码分复用。站点占用的频率资源信息为该站点占用的信道信息(例如站点占用非授权载波5GHz其中的一个信道)、站点占用频率资源的时长信息(例如站点在LBE方式下占用一个信道11ms)。站点占用的频率资源的占用时长信息是指站点计划使用占用的频率资源的时长信息。站点所属的运营商信息可以按照国家或地区进行对应的申请。例如运营商信息的描述可以分为：地区和/或国家标识(例如中国大陆地区的标识为+86)和在该地区和/或国家内的标识(例如编号)；还可以直接为运营商设置全球唯一的标识。
需要特别说明的是，大部分情况下，不同的运营商之间的站点是不支持载波复用的，因此，一个站点发送的预设信息中需要包括该站点所属的运营商信息，但是在一些情况下，该站点发送的预设信息中也可以不包括该站点所属的运营商信息，此时，预设信息中需要包括前述的可选的其他信息。例如一种可以预见的场景为：当在某一国家或地区或通过标准化方式，对于非授权载波允许邻近站点复用使用且不限于邻近复用的站点是否为同一运营商时，则站点发送的预设信息中可以不包括该站点所属的运营商信息，只需包括前述可选的其他信息即可。如果对于邻近站点复用限制为同一运营商的站点可以复用时，则站点发送的预设信息中需至少包括该站点所属的运营商信息。
还需说明的是，站点在抢占非授权载波时会占用较长的时间，例如站点在LBT机制下的FBE方式下，最多可以抢占到非授权载波10ms(一个子帧为1ms，10ms也即10个子帧)的使用权，该站点一般只使用其中的几个子帧完成数据传输，对于剩余的子帧，在现有的技术方案中，如果该站点不继续使用剩余的子帧则只能浪费掉，无法由其他的站点进行复用，然而，通过本发明实施例提供的技术方案，该站点在抢占到该非授权载波的使用权(例如10个子帧的使用权)后向其余站点发送预设消息(例如该预设消息表明： 该站点使用2个子帧后剩余的8个子帧支持以频分复用的方式复用)，从而可以使其余站点根据接收的预设信息复用该站点占用的非授权载波(例如以频分复用的方式复用剩余的8个子帧)，能使非授权载波被最大限度地利用，提高载波利用效率。
可选地，本发明实施例中的预设信息还可以包括以下信息中的至少一种：该站点所在的小区标识ID、该站点占用的频率资源的子帧号、该站点占用的频率资源的上行子帧或下行子帧的位置。举例说明，站点以基站为例，其他的站点以该站点下属的UE为例，抢占非授权载波成功的基站向其下属的UE发送的预设信息中包括上述的三种信息，可以使下属UE获知该基站已获得非授权载波使用权，以及该基站占用的非授权载波的子帧中哪些是上行、下行子帧，这样，该基站下属的UE可以在下行子帧中执行测量，例如信道状态信息(Channel Status Information，CSI)测量或无线资源管理(Radio Resource Management，RRM)测量。另外，对于邻近的其他站点，例如该基站邻近的基站或不属于上述抢占到非授权载波的基站下属的UE，也是可以利用预设信息中包括的上述信息获知下行子帧位置，从而也可以执行干扰测量，以便后续使用干扰测量的结果减小信号干扰。
可选地，
上述预设信息由第一下行控制信息(DCI)承载，该预设信息由第一DCI的格式中约定的部分比特或全部比特来描述；或，
预设信息由信令承载，该信令通过物理下行共享信道(Physical Downlink Shared Channel，PDSCH)发送，该信令由第二DCI调度。
需要说明的是，上述第一DCI与第二DCI的表述方式仅是为了描述方便而进行的区分，并不存在顺序上的限定。
对于上述的由第一DCI承载预设信息的实现方式，技术人员可以预先对第一DCI的格式中约定的部分或全部比特的取值的含义进行重新定义，使第一DCI的格式中的比特的取值与本发明实施例中的预设信息中包括的各个信息的具体内容相对应，从而实现由第一DCI来承载本发明实施例中的预设信息。举例进行说明，假设第一DCI格式固定为DCI 1A(仅是假设，具体选择哪一种DCI格式是需要通过标准协议固定的)，通过对其中的部分或全部比 特的含义进行重新定义，使得重新定义的比特的含义与上述实施例中预设信息中包括的各个信息形成对应的关系，并使重新定义后的第一DCI的格式中的比特的含义成为公认的协议规定。
对于上述的由信令承载预设信息的实现方式，通过配置信令来承载本发明实施例中的预设信息，该信令通过PDSCH发送，第二DCI来调度该信令，其中，PDSCH是现有的LTE系统中的一种物理下行信道，由DCI调度信令以及在LTE系统中配置信令是本领域技术人员的惯用技术手段，在此不做详细介绍。
可选地，本发明实施例中第一DCI或第二DCI的格式为LTE Rel-12中包含的DCI的格式中的任意一种；或，所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
示例性的，第一DCI或第二DCI的格式可以是以下现有的DCI格式中的任意一种：DCI 0、DCI 1A、DCI 1B、DCI 1C、DCI 1D、DCI 2、DCI 2A、DCI 2、DCI 3、DCI 3A。前述10种格式仅是对现有的DCI格式的部分列举，并不是全部。LTE系统一直在不断演进，在后续演进过程中还可能规定新的DCI格式，第一DCI或第二DCI的格式也可以是以后LTE版本协议中新增的DCI格式中的任意一种。
可选地，
第一DCI或第二DCI，由该站点执行CCA或eCCA成功的子帧承载；或，
第一DCI或第二DCI，由该站点执行CCA或eCCA成功的子帧之后抢占的子帧承载。
其中，使用约定的物理资源/物理信道承载第一DCI或第二DCI；或者，使用相对某一已知物理资源/物理信道的位置固定的物理资源来承载第一DCI或第二DCI。举例说明，站点一般在占用非授权载波时，都会占用较多的子帧(例如FBE方式下，最多可以占用10ms，一个子帧为1ms)，该站点向其他的站点发送的预设信息表明：该站点可以和邻近站点复用频率资源，复用的方式为频分复用，该站点选择使用该站点执行CCA或eCCA成功的子帧(即 上述约定的物理资源)来承载第一DCI或第二DCI，这样便于相邻的站点及时接收第一DCI或第二DCI，并及时执行频分复用。如果该站点占用资源后，并不急于与其他站点进行复用频率资源(例如站点占用时需要传输的负载较高)，等传输一段时间后，站点负载降低时，再发送第一DCI或第二DCI，以支持与邻近站点复用频率资源，此时站点使用该站点执行CCA或eCCA成功的子帧之后的子帧(即上述相对某一已知物理资源的位置固定的物理资源)来承载第一DCI或第二DCI。
可选地，承载第一DCI或第二DCI的子帧选择成功后，可以在选择的子帧的PDCCH或ePDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI。
其中，
该站点使用该站点执行CCA或eCCA成功的子帧中的物理下行控制信道(Physical Downlink Control Channel，PDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
该站点使用该站点执行CCA或eCCA成功的子帧中的增强物理下行控制信道(enhanced Physical Downlink Control Channel，ePDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
该站点使用该站点执行CCA或eCCA成功的子帧之后抢占的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
该站点使用该站点执行CCA或eCCA成功的子帧之后抢占的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI。
需要说明的是，如果该站点选择使用该站点执行CCA或eCCA成功的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI，为了便于使用该PDCCH，可以对其进行简单修改，其中约定的搜索空间可以通过标准化协议规定。对于该站点执行CCA或eCCA成功的子帧，应该固定PDCCH在子帧的正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号中的位置，可选地，固定1个或2个OFDM符号。当选择的子帧中不存在现有的LTE PDCCH时(现有的PDCCH占用最多为子 帧的前4个OFDM符号)，可以在该选择的子帧中重新选择一个或多个OFDM符号固定，然后按照现有的发送PDCCH的方式进行发送。另外，如果固定为2个OFDM符号时，当该子帧中剩余的OFDM符号不够2个时，仍然使用一个OFDM符号以避免跨子帧传输。另外，由于本发明实施例中可以不使用现有的PDCCH的物理控制格式指示信道(Physical Control Format Indicator Channel，PCFICH)和信道物理混合自动重传指示信道(Physical Hybrid ARQ Indicator Channel，PHICH)，因此还可以在调整PDCCH时使本发明实施例中使用的PDCCH不支持上述两个信道。
如果该站点选择使用该站点执行CCA或eCCA成功的子帧之后的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI，具体的发送方式参考上述内容实现。
如果该站点选择使用该站点执行CCA或eCCA成功的子帧中的ePDCCH的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI，该站点需要事先将用于传输第一DCI或第二DCI的ePDCCH的配置信息和资源信息(例如使用的物理资源块(Physical Resource Block，PRB))进行约定后发送。这样其他站点(包括下属UE)才能正确发现和接收ePDCCH中的第一DCI或第二DCI。
如果该站点选择使用该站点执行CCA或eCCA成功的子帧之后的子帧中的ePDCCH的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI，具体的发送方式参考上述内容实现。
可选地，
第一DCI或第二DCI，由与该站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧承载；或，
第一DCI或第二DCI，由与该站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧承载。
目前LTE系统已支持载波聚合技术(Carrier Aggregation，CA)，该站点在抢占到非授权载波的使用权后就可以与授权载波进行载波聚合，因此，该站点也可以使用授权载波来发送第一DCI或第二DCI，不过，必须保证用于 发送第一DCI或第二DCI的授权载波中的子帧与能用于发送第一DCI或第二DCI的该站点占用的非授权载波中的子帧在时间上是对应的。
可选地，承载第一DCI或第二DCI的子帧选择成功后，可以在选择的子帧的PDCCH或ePDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI。
其中，
该站点使用与该站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
该站点使用与该站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
该站点使用与该站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
该站点使用与该站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI。
需要说明的是，该站点选择授权载波中的子帧的PDCCH的公共搜索空间或约定的搜索空间向其他的站点发送第一DCI或第二DCI的方式可以参考上述该站点使用非授权载波中的子帧的PDCCH的公共搜索空间或约定的搜索空间向其他的站点发送第一DCI或第二DCI的方式，在此不做赘述；该站点选择授权载波中的子帧的ePDCCH的公共搜索空间或约定的搜索空间向其他的站点发送第一DCI或第二DCI的方式可以参考上述该站点使用非授权载波中的子帧的ePDCCH的公共搜索空间或约定的搜索空间向其他的站点发送第一DCI或第二DCI的方式，在此不做赘述。
可选地，第一DCI或第二DCI由该站点使用预设的无线网络临时标识(RNTI)进行加扰。
其中，该站点可以使用预设无线网络临时标识(Radio Network Temporary Identifier，RNTI)对第一DCI中的CRC比特或第二DCI中的CRC比特加扰，其中，利用RNTI加扰DCI中的CRC比特属于现有的技术手段，在此不做详细说明。
可选地，预设的无线网络临时标识(RNTI)包括：
预先约定，且与该站点所属的运营商对应的RNTI；或，
预先约定，且与第一DCI或第二DCI对应的RNTI。
示例性的，预设的RNTI可以是该站点接收该其他站点通过系统广播发送的用于加扰第一DCI或第二DCI时的与该站点所属运营商对应的RNTI。预设的RNTI还可以是通过标准化协议的方式约定一个RNTI作为加扰第一DCI或第二DCI时专用的DCI，例如可以将约定的RNTI记为O-RNTI，这样站点在作为发送端时按照标准化协议使用O-RNTI，同样接收端也按照标准化协议使用O-RNTI。预设的RNTI还可以是预先约定的，且与第一DCI或第二DCI对应的RNTI。
需要说明的是，当该站点使用与该站点所属的运营商对应的RNTI加扰第一DCI或第二DCI时，由于该RNTI与运营商是对应的，因此，上述实施例中的预设信息也可以不包括该站点对应的运营商信息。
本发明实施例提供的一种载波复用的方法，站点执行CCA或eCCA，当站点执行CCA或eCCA成功、获得非授权载波的使用权后，该站点发送预设信息；其中，预设信息包括以下信息中的至少一个：该站点占用的频率资源的复用条件信息、该站点占用的频率资源的复用方式信息、该站点占用的频率资源信息、该站点占用的频率资源的占用时长信息、该站点所属的运营商信息。本发明实施例提供的技术方案，站点在抢占到非授权载波的使用权后，向其他的站点发送所占用的频率资源的复用条件信息，能够实现站点占用的非授权载波在不同站点之间的复用，提高非授权载波的利用率。
为了使本领域技术人员能够更清楚地理解本申请提供的技术方案，下面通过具体的实施例，对本发明实施例提供的载波复用的方法进行详细说明。
实施例一
站点执行CCA或eCCA(CCA/eCCA)进行非授权载波的抢占，当站点执行CCA/eCCA成功、抢占到非授权载波使用权，站点向其他的站点发送DCI格式的信息。其中，使用DCI格式中的比特分别描述站点所属的运营商信息、该站点具体占用的频率资源信息、该站点具体占用的频率资源的占用时长信息。其中，频率资源信息采用PRB资源分配的方式来描述。其中，DCI格式为LTE现有的DCI格式中某一个，并约定该DCI格式用来描述上述信息的发送。例如，可以约定使用现有的DCI 1C格式。
站点对于DCI 1C格式中的比特添加CRC校验比特，然后使用约定的(或标准规定的)RNTI(不妨记为O-RNTI)对于DCI 1C格式中的比特的CRC校验比特进行加扰。然后对于得到的比特数据进行编码并发送(编码方式可以沿用现有LTE的DCI 1C的编码方式)。
另外，对于DCI 1C格式中未使用的比特位仍然保留(例如置0或置1)，使得DCI 1C的总比特数保持不变(其中，每一个DCI格式的比特数是一定的)。
站点在非授权载波中发送该DCI格式的信息，选择在站点执行CCA/eCCA成功的子帧中发送，或者在该成功的子帧的下一个子帧中发送。
其他站点，接收该站点发送的前述DCI格式的信息，并解析DCI格式中比特的含义，进一步根据比特的含义确定自己是否能够同时使用非授权载波，以及如何使用、使用哪部分频率资源等。具体而言，其他站点，在约定的发送前述DCI 1C的资源中采用约定的O-RNTI进行盲检，然后解码DCI，获取其中的比特信息，并解析比特信息。如果该站点允许其他站点与自己复用使用非授权载波，那么其他站点则使用剩余的频率资源，在该站点占用的时间内进行复用，当超过了该站点占用的时间外，其他站点将停止复用。
实施例二
站点执行CCA/eCCA成功后，站点使用约定的RNTI(例如站点使用与该站点所属运营商对应的RNTI)，来加扰DCI 1C比特添加的CRC比特(这里指示示意性选择DCI 1C格式，其他DCI格式也是可以的，只要事先约定好即可，且此处DCI格式中的比特的含义与实施例一中的DCI 1C格式中的比特的含义不同)，对于加扰后所得比特进行编码，站点然后发送该DCI 1C 格式的信息，其中，该DCI 1C中的比特为信令A配置的控制信息(主要是实现资源分配和编码调制信息)，站点再根据DCI 1C中的调制编码方式、资源分配等信息对于信令A进行调制编码、以在对应的资源上映射发送信令A(信令A被看做数据在PDSCH中发送)。其中，信令A包括的信息为实施例一中使用的DCI 1C格式中的比特描述的各个信息。
站点用来发送信令A的资源可选为站点执行CCA/eCCA成功的子帧或下一个子帧。信令A的控制信息可以在授权载波或竞争到的非授权载波中发送，使用授权载波时需保证授权载波的子帧与非授权载波的子帧时间上对应，可选地，使用PDCCH或ePDCCH(PDCCH/ePDCCH)在前述子帧中发送。
其他的站点作为接收端，根据约定的RNTI(例如使用与该站点所属运营商对应的RNTI)，在约定的资源(用来发送包含上述DCI 1C的PDCCH/ePDCCH的资源)中盲检PDCCH/ePDCCH的中的信令A对应的DCI1C，可选地，为了简化接收端的复杂度，作为接收端的其他的站点首先使用与自身所属运营商对应的RNTI进行尝试盲检，其次可以使用允许频率复用的运营商的RNTI进行尝试盲检，其中允许频率复用的运营商通过协商获知。然后解码该DCI 1C，根据该DCI 1C中的信息(例如资源信息、调制编码信息等)进一步从物理下行共享信道(Physical Downlink Shared Channel，PDSCH)中接收信令A，然后解码信令A，最终获得信令A。之后接收端可以按照实施例一的方式进行进一步处理。
实施例三
如果站点是UE，当UE执行CCA或eCCA(CCA/eCCA)成功、获得非授权载波使用权后，UE发送上行数据，其中上行数据的上行授权信息是基站侧预先发送给UE的，可以是在授权载波或非授权载波中发送。可选地，UE执行CCA/eCCA的子帧位置也是基站侧预先通知给UE的。基站在对应的子帧中接收UE发送的上行数据，如果基站正确的解码该数据，那么基站可以认为是下属的UE占用了非授权载波，同时基站获得该非授权载波的使用权，并根据业务需求调度下属UE(包括前述执行CCA/eCCA成功的UE，以及其他UE)。基站侧只能在UE占用非授权载波的剩余时长内使用该非授权载波。例如，UE抢占成功后，占用最长为10ms，UE发送上行数据使用了1ms，那 么基站只能使用剩余的9ms。UE侧也可以上报占用的时长，或者说占用的时长事先约定为固定值。这样基站侧可以计算剩余的时长。当UE侧不上报占用时长时，那么基站能够使用的最大时长为：管制规定的最大占用时长减去UE使用的时长。UE使用的时长，可以包括UE执行CCA/eCCA的时间部分，也可以不包括。
当非授权载波复用的条件中限定运营商时，基站也可以再按照实施例一中的方式进行一次运营商信息的发送，以支持邻近站点的复用，提升非授权载波利用效率。
实施例四
如果站点为UE，当UE执行CCA/eCCA成功后，抢占到非授权载波，UE在约定的资源中发送DCI格式的信息，其中DCI格式中的比特为上述的实施例一中DCI格式中的比特含义。UE发送DCI格式的信息的方式可以采用前述的实施例一、二、或三中站点发送DCI格式的信息的方式。
另外，UE可以使用自己的小区无线网络临时标识(C-RNTI)替代前述几个实施例中约定的RNTI。此时UE所属的基站能够接收UE发送的DCI格式的信息，该基站解析接收到的DCI格式的信息，并将所述数据信息通知邻近站点，例如通过X2口或系统广播消息发送。
上述几个实施例中，站点发送包含DCI格式的信息的子帧位置为优先选择CCA/eCCA执行成功的子帧，其次，可以选择CCA/eCCA成功之后的第一个占用的子帧来发送。实际上，根据不同的场景，发送DCI格式的信息的子帧位置略有差异。例如，在要求执行CCA/eCCA，且规定单次占用最大占用时长较短的地区，例如欧洲、日本等，该DCI格式的信息在站点抢占成功后，越早发送越有利。例如使用CCA/eCCA成功的子帧，或者下一个子帧发送(当然之后占用的其他子帧也可以发送，但是能够复用的时间就变短，效率降低)；在单次占用时间比较长时，可以使用CCA/eCCA成功的子帧之后的发送时，效率也会降低，但是降低的幅度不明显。
实施例五
为运营商事先约定或分配对应的RNTI，然后每个运营商的站点使用每个 运营商对应的RNTI。
站点执行CCA/eCCA成功的、获得非授权载波的使用权，使用该站点所属运营商对应的RNTI对于约定的DCI格式中的比特添加的CRC比特加扰，之后对于所得到的比特进行编码发送(具体可以沿用现有LTE的编码方式)。
对于接收端的站点，首先使用所属运营商对应的RNTI盲检DCI，如果盲检成功，那么解析该DCI中的比特，根据所述比特的约定的含义来确定是否实施复用非授权载波、以及如何复用。具体可以参考前述几个实施例，例如实施例一的复用方式。
如果不同运营商之间也支持非授权载波复用，那么接收端的站点也可以从支持非授权载波复用的运营商的对应的RNTI中选择某一运营商的RNTI进行盲检，对于不支持的复用的运营商的约定RNTI不使用其进行盲检。
实施例六
当UE执行CCA成功获得非授权载波使用权后，UE发送预留信号，该预留信号可以体现出该UE下属于哪一个基站，预留信号是指在非授权载波中发送的，为了防止非授权载波被其他站点抢走而发送的用来占住信道的信号，也可以称之为占用信号。预留信号可以采用UE的C-RNTI加扰，或者采用基站为UE分配的序列，例如某一前导(preamble)序列。
基站侧接收该预留信号，如果能够正确获取该预留信号，那么基站侧将确定为自己下属UE成功抢占到非授权载波使用权，同时基站侧获得该非授权载波的使用权。如果基站侧不能正确解码或获取该预留信号时，则基站不能获得非授权载波使用权。
基站获取非授权载波使用权后，基站可以按照实施例一中的方式使用。
当非授权载波复用的条件中限定运营商时，基站也可以再按照实施例一中的方式进行一次运营商信息的发送，以便支持邻近站点的复用，提升非授权载波利用效率。
此外，本发明实施例提供一种站点10，如图3所示，该站点10包括：
获取单元11，设置为：获取其他的站点发送的预设信息；其中，预设信息包括以下信息中的至少一个：该其他的站点占用的频率资源的复用条件信 息、该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息、该其他的站点占用的频率资源的占用时长信息、该其他的站点所属的运营商信息。
复用单元12，设置为：根据获取单元11获取的预设信息复用该其他的站点占用的频率资源。
可选地，
预设信息由第一下行控制信息(DCI)承载，该预设信息由第一DCI的格式中约定的部分比特或全部比特来描述；或，
预设信息由信令承载，该信令通过物理下行共享信道(PDSCH)发送，该信令由第二DCI调度。
可选地，获取单元11是设置为：
根据接收的该其他的站点使用授权载波发送的信号，获取该其他的站点发送的预设信息。
可选地，获取单元11是设置为：
通过检测授权载波中的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息；或，
通过检测授权载波中信号中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息。
可选地，如图4所示，所述站点还包括：
评估单元13，设置为：在获取单元11获取该其他的站点发送的预设信息之前，执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)；
接收单元14，设置为：当评估单元13执行CCA或eCCA忙时，接收该其他的站点使用非授权载波发送的包含预设信息的信号；
相应的，获取单元11是设置为：
根据接收单元14接收的非授权载波中的信号获取所述预设信息。
可选地，获取单元11是设置为：
通过检测非授权载波中的信号中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息；或，
通过检测非授权载波中的信号中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间来获取第一DCI或第二DCI，使用预设的无线网络临时标识(RNTI)解扰第一DCI或第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取预设信息。
可选地，预设的无线网络临时标识(RNTI)包括：
预先约定，且与所述站点所属的运营商对应的RNTI；或，
预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
可选地，
第一DCI或第二DCI的格式为LTE Rel-12中包含的DCI的格式中的任意一种；或，
第一DCI或第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
本实施例用于实现上述各方法实施例，本实施例中各个单元的工作流程和工作原理参见上述各方法实施例中的描述，在此不再赘述。
本发明实施例提供的站点，站点获取其他的站点发送的预设信息；其中，预设信息包括以下信息中的至少一个：该其他的站点占用的频率资源的复用条件信息、该其他的站点占用的频率资源的复用方式信息、该其他的站点占用的频率资源信息、该其他的站点占用的频率资源的占用时长信息、该其他的站点所属的运营商信息；该站点根据获取的预设信息复用该其他的站点占用的频率资源。通过本发明实施例提供的技术方案，能够实现某一站点占用的非授权载波在不同站点之间进行复用，提高非授权载波的利用率。
本发明实施例还提供一种站点20，如图5所示，该站点20包括：
评估单元21，设置为：执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)。
发送单元22，设置为：当评估单元执行CCA或eCCA成功、获得非授权载波的使用权后，发送预设信息；其中，预设信息包括以下信息中的至少一个：该站点占用的频率资源的复用条件信息、该站点占用的频率资源的复用方式信息、该站点占用的频率资源信息、该站点占用的频率资源的占用时长信息、该站点所属的运营商信息。
可选地，
预设信息由第一下行控制信息(DCI)承载，该预设信息由第一DCI的格式中约定的部分比特或全部比特来描述；或，
预设信息由信令承载，该信令通过物理下行共享信道(PDSCH)发送，该信令由第二DCI调度。
可选地，
第一DCI或第二DCI，由该站点执行CCA或eCCA成功的子帧承载；或，
第一DCI或第二DCI，由该站点执行CCA或eCCA成功的子帧之后抢占的子帧承载。
可选地，发送单元22是设置为：
使用该站点执行CCA或eCCA成功的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
使用该站点执行CCA或eCCA成功的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
使用该站点执行CCA或eCCA成功的子帧之后抢占的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
使用该站点执行CCA或eCCA成功的子帧之后抢占的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI。
可选地，
第一DCI或第二DCI，由与该站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧承载；或，
第一DCI或第二DCI，由与该站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧承载。
可选地，发送单元22是设置为：
使用与该站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的物理下行控制信道(PDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
使用与该站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的增强物理下行控制信道(ePDCCH)中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
使用与该站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI；或，
使用与该站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送第一DCI或第二DCI。
可选地，第一DCI或第二DCI是由发送单元22使用预设的无线网络临时标识(RNTI)进行加扰的。
可选地，预设的无线网络临时标识(RNTI)包括：
预先约定，且与该站点所属的运营商对应的RNTI；或，
预先约定，且与第一DCI或第二DCI对应的RNTI。
可选地，
第一DCI或第二DCI的格式为LTE Rel-12中包含的DCI的格式中的任 意一种；或，
第一DCI或第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
本实施例用于实现上述各方法实施例，本实施例中各个单元的工作流程和工作原理参见上述各方法实施例中的描述，在此不再赘述。
本发明实施例还提供的一种站点，站点执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)，当该站点执行CCA或eCCA成功、获得非授权载波的使用权后，该站点发送预设信息；其中，预设信息包括以下信息中的至少一个：该站点占用的频率资源的复用条件信息、该站点占用的频率资源的复用方式信息、该站点占用的频率资源信息、该站点占用的频率资源的占用时长信息、该站点所属的运营商信息。本发明实施例提供的技术方案，站点在抢占到非授权载波的使用权后，向其他的站点发送所占用的频率资源的复用条件信息，能够实现站点占用的非授权载波在不同站点之间的复用，提高非授权载波的利用率。
此外，本发明实施例提供一种信息发送方法，该方法包括：
当站点执行空闲信道评估(CCA)或扩展空闲信道评估(eCCA)成功、获得非授权载波的使用权后，所述站点判断在所述站点执行CCA或eCCA成功的子帧中的非完整OFDM符号上是否能够发送预留信号；
当所述站点判断能够发送时，所述站点在所述非完整OFDM符号上发送预留信号；
当所述站点判断不能够发送时，所述站点在所述非完整OFDM符号之后的第一个完整OFDM符号中发送用于通知其他的站点调整动态增益控制(Automatic Gain Control，AGC)的预设序列。
可选地，所述站点判断在所述站点执行CCA或eCCA成功的子帧中的非完整OFDM符号上是否能够发送预留信号包括：
所述站点根据与所述非授权载波聚合的授权载波的子帧以及所述授权载波的OFDM符号定时，确定所述非完整OFDM符号的时长；
当所述时长等于0或小于单次所述站点执行CCA或eCCA的时长时，则 所述站点判断不能发送所述预留信号；
当所述时长大于或等于单次所述站点执行CCA或eCCA的时长时，则所述站点判断能发送所述预留信号。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的技术方案，下面通过具体的实施例，对本发明实施例提供的信息发送方法进行详细说明。
在LTE系统中，通过授权辅助接入(License Assisted Access，LAA)技术高效聚合授权频段和非授权频段可以有效提升数据传输速率。但是，由于引入LBT机制，不管是FBE方式还是LBE方式，由于LTE系统中的OFDM符号时长不是单次CCA或eCCA(CCA/eCCA)的时长的整数倍，因此站点(例如站点为基站)执行CCA/eCCA成功后，在执行CCA/eCCA的子帧内往往会产生非完整的OFDM符号以及完整的OFDM符号(例如站点执行CCA/eCCA成功的时刻，恰好与OFDM符号边界对齐，非完整OFDM符号时长为0，或者距离OFDM符号边界时长小于单次CCA/eCCA时长)。然而，LTE系统中用户数据一般都是采用完整OFDM符号传输的，那么对于非完整OFDM符号，站点需要发送预留信号，预留信号是指在非授权载波中发送的，为了防止非授权载波被其他站点抢走而发送的用来占住信道的信号，也可以称之为占用信号。
由于站点使用非授权载波是非连续的，所以接收端(例如该站点的下属UE)在下一次接收该非授权载波中的数据时，需要临时的调整动态增益控制(Automatic Gain Control，AGC)，使得接收信号效率最高。由于接收端调整AGC时一般需要使用发送端(该站点)发送的已知序列，其中，接收端调整AGC的具体的调整方式有很多种，可以参考公知常识。因此，抢占到非授权载波的该站点为了支持接收端调整AGC需发送已知序列，该已知序列还可以是预留信号的一部分。
实施例一
当站点抢占到非授权载波时，站点参考对于该非授权载波聚合的授权载波的子帧、OFDM符号定时，确认非授权载波中产生的非完整OFDM符号时长，根据该时长确认非完整OFDM符号中的预留信号是否能被发送。如果站 点确认可以发送，则站点发送非完整OFDM符号中的预留信号，同时站点在该非完整OFDM符号之后的第一个完整OFDM符号中不再使用资源发送用于支持AGC调整的序列，从而节约部分资源，且该第一个完整OFDM符号资源可以用于发送用户数据；如果确认不能发送，或者不需要发送，则站点在之后的第一个完整OFDM符号中使用资源发送用于支持AGC调整的序列。
接收端(例如该站点下属的UE)，如果接收到非完整OFDM符号中的预留信号时，则使用该预留信号设置调整AGC，并确认该站点在该非完整OFDM符号之后的第一个完整OFDM符号中不再发送用于调整AGC的序列，认为前述第一个完整OFDM符号的资源中是有效的用户数据；如果未接收到非授权载波中的预留信号，则接收端确认该站点在第一个完整OFDM符号中发送用于调整AGC的序列，接收端接收该序列并用于AGC调整，同时确定该序列对应的资源中不包括有效的用户数据。
实施例二
当站点抢占到非授权载波时，站点参考对于该非授权载波聚合的授权载波的子帧、OFDM符号定时，确认非授权载波中产生的非完整OFDM符号时长，根据该时长确认非完整OFDM符号中的预留信号是否能被发送。如果站点确认可以发送，则站点发送非完整OFDM符号中的预留信号，同时站点在之后的第一个完整OFDM符号中仍然使用资源发送用于支持AGC调整的序列；如果确认不能发送，或者不需要发送，则站点在之后的第一个完整OFDM符号中使用资源发送用于支持AGC调整的序列。
接收端(例如该站点下属的UE)，如果接收到非完整OFDM符号中的预留信号时，则使用非完整OFDM符号中的预留信号设置调整AGC，同时在之后的第一个完整OFDM符号中接收数据时，剔除第一个完整OFDM符号中用于发送调整AGC的序列所使用的资源；如果未接收到非授权载波中的预留信号时，则接收端确认该站点在之后的第一个完整OFDM符号中发送用于调整AGC的序列，接收端接收该序列并用于AGC调整。
与实施例一中的方案相比，实施例二的方案提高了站点发送预留信号以及接收端接收预留信号的可靠性。
此外，本发明实施例还提供一种数据传输方法，该方法包括：
站点按预定义或半静态调整的帧周期对非授权载波进行CCA或eCCA(CCA/eCCA)；其中，所述站点开始执行CCA/eCCA的位置位于所述帧周期内的第一个子帧内从时刻点N之后的任意时刻点位置；
在所述帧周期内，所述站点在执行CCA/eCCA的子帧或执行CCA/eCCA时隙的剩余时间区域发送预留信号或在所述剩余时间区域内的完整OFDM符号中发送数据，或者从所述执行CCA/eCCA的子帧的下一子帧或所述执行CCA/eCCA的时隙的下一个时隙开始传输数据。
可选地，该站点初次开始CCA/eCCA的位置可以根据系统配置确定，或者由该站点随机选择。后续该站点执行CCA/eCCA的位置根据该站点前一次/前L次(L值事先约定)CCA/eCCA的结果进行调整，具体如下：
当该站点在预设统计时间内，连续或累计执行CCA或eCCA失败次数达到预定阈值时，则该站点将执行CCA或eCCA的位置提前一个或多个单位时间再执行CCA/eCCA；或者，
当该站点在该预设统计时间内，连续或者累计CCA或eCCA成功次数达到预定阈值时，则该站点将执行CCA或eCCA的位置延后一个或多个单位时间或者重新配置执行CCA或eCCA的位置(包括默认配置到上一次相同的位置)或随机选择执行CCA或eCCA的位置，再执行CCA/eCCA；
其中，上述单位时间为执行一个CCA或eCCA的时长、或者一个OFDM符号的时长、或者两个OFDM符号时长。
需要说明的是，在该帧周期内，所述站点执行CCA或eCCA以前的时间(包括所述站点执行CCA或eCCA的时刻)为空白区域，该站点在空白区域不发送任何数据；N或者空白区域时长为根据帧周期长度及国家或地区法规关于非授权载波的管制确定的预定义值。从该帧周期起始点开始至N时刻点的间隔时长不小于帧周期长度的5％，其中，包括单次CCA/eCCA时长。当所述剩余时间区域内存在完整LTE OFDM符号时，数据可以从第一个完整的OFDM符号开始发送。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的技术方案，下面通过具体的实施例，对本发明实施例提供的数据传输的方法进行详 细说明。
实施例一
本实施例对站点通过系统定义一个LBT时隙或子帧的方法执行CCA或eCCA进行非授权载波竞争接入及数据传输的具体过程进行说明。
站点用该方法进行LBT的方式为：
系统对帧周期内设置LBT位置和时长，比如设置2ms、4ms或10ms的帧周期定义一个LBT时隙(按照LTE协议执行)或子帧，该帧周期内CCA/eCCA的长度固定，但是起始位置不固定。并且，执行CCA或eCCA之前帧结构内是空白区域，且空白区域的符号数目要满足管制要求(最小为帧长的5％)。对于2ms的帧周期，则空白区域加CCA/eCCA的时间至少为2个OFDM符号；对于4ms的帧周期，则空白区域加CCA/eCCA的时间至少为3个OFDM符号；对于10ms的帧周期，则空白区域加CCA/eCCA的时间至少为7个OFDM符号；该时隙或子帧剩余的OFDM符号用于发送占用信号。
每个站点初次进行CCA或eCCA所在的定义的LBT时隙或子帧的位置系统定义相同，或者由站点随机选择。后续该站点进行CCA或eCCA开始的符号位置根据该站点执行CCA或eCCA成功次数和/或占用时长的统计进行调整。如果该站点在统计时间内连续n(n>预定义门限值T，T为正整数)次接入不成功，则该站点将执行CCA/eCCA所在的符号或位置不断提前一个单位时间，比如一个执行CCA或eCCA的时长，或者一个OFDM符号的时长，或者两个OFDM符号的时长，直到该站点执行CCA或eCCA的位置落入其它站点对应的空白区域内，也即该站点执行CCA或eCCA成功为止。
相反，如果一个站点连续CCA/eCCA成功m(m>预定义门限M，M为正整数)次，则该站点下次执行CCA或eCCA时所在LBT时隙或子帧的符号位置重置到系统定义的位置，或者该站点按照单位时间不断延后，即，使该站点的空白区域不断拉大，以便其他的站点的CCA或eCCA进入到该站点的空白区域内，接入比该站点更早。
其中，预定义门限T，M的值与帧周期的长度有关。当帧周期较长时，T 和M的值较小；当帧周期较短时，T和M的值较大。比如，当帧周期为4ms时，T和M的值可以分别为3和4；当帧周期为10ms时，T和M的值可以分别为2和1。
结合图6进行说明，假设每个站点采用的帧周期为2ms，每个运营商的站点执行CCA或eCCA的位置可以位于该帧周期中第一个子帧或第一个时隙内从第二个符号后的任意符号位置。运营商2的站点如果第一次执行CCA或eCCA的位置在第四个符号没有检测成功，则第二次可以换到第二个符号执行CCA或eCCA，由于落入运营商1的站点的空白区域内则CCA/eCCA成功。
如果运营商2的站点抢占非授权载波成功，则该站点需要在执行CCA或CCA的结束位置和数据开始传输的定时位置中间的时间内发送预留信号。所述预留信号一方面用于占用载波，另一方面可以实现一些测量，比如RRM测量或者信道质量测量，AGC调整等功能。预留信号为前导序列、参考信号或者部分用户数据。同时，预留信号还可以携带运营商信息，通知运营商2的其他站点也可以在该非授权载波上进行数据传输，或者预留信号还可以携带小区标识，通知与该站点属于同小区的其它UE实现上行多用户复用。
LBT时隙所在的子帧的剩余时隙用于传输用户的部分数据，或者用于发送主同步信号(Primary Synchronization Signal，PSS)或辅同步信号(Secondary Synchronization Signal，SSS)，小区专用导频(Cell-specific Reference Signal，CRS)，信道状态信息测量导频信号(Channel Status Information-Reference Signal，CSI-RS)或者探测参考信号(Sounding Reference Signal，SRS)或者前导序列。
通过该实施例可以看出利用上述本发明实施例提供的方法使得不同站点接入非授权载波的时刻随机化，解决了LTE系统在非授权载波频段进行操作时，不同站点接入时遇到的碰撞问题以及不公平问题，提高了频谱效率。
本发明实施例还提供一种解决公平接入非授权载波的方法，该方法包括：
不同运营商的站点在帧周期内使用不同的执行CCA/eCCA的起始位置，且使得不同运营商的站点的所述起始位置交替的、先于彼此出现。
可选地，确定帧周期内为CCA/eCCA设置固定的时间范围，在该时间范 围内每个运营商配置或设置站点执行CCA/eCCA的起始位置。
可选地，运营商之间通过协商CCA/eCCA的起始位置，并通过OAM(操作维护管理)对于站点进行配置CCA/eCCA的起始位置。
可选地，运营商的站点在设置自己的CCA/eCCA的起始位置时，先接收非授权载波中且邻近的其他运营商的站点中已经配置的CCA/eCCA位置信息，其中，位置信息为描述该站点在时间方向一系列的CCA/eCCA位置；然后再按照交替的、先于彼此出现的原则确定自己的CCA/eCCA位置。
可选地，已经确定了自己CCA/eCCA位置信息的站点，通过授权载波或非授权载波将该信息通过广播方式或X2口或S1口发送。
可选地，当有Q个运营商时，设置连续的Q个帧周期作为一个交替的循环周期，分别在1至Q个帧周期中分别设置第1个至第Q个运营商的CCA/eCCA位置起始时间分别先于其他运营商。例如Q为3时，那么3个帧周期为一个交替的循环周期，在循环周期的第一个帧周期中，设置第一个运营商的CCA/eCCA位置先于其他两个运营商的CCA/eCCA位置；在循环周期的第2个帧周期中，设置第二个运营商的CCA/eCCA位置先于其他两个运营商的CCA/eCCA位置；在循环周期的第3个帧周期中，设置第三个运营商的CCA/eCCA位置先于其他两个运营商的CCA/eCCA位置。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的技术方案，下面通过具体的实施例，对本发明实施例提供的解决公平接入非授权载波的方法进行详细说明。
实施例一
如图7，帧结构中为CCA/eCCA设置固定的时间范围，例如图7中的G时长。运营商1和运营商2的站点在该G时长的范围内执行CCA/eCCA，并使得彼此帧周期内执行CCA/eCCA的时间位置交替先于彼此出现。
运营商1和运营商2协商并通过OAM方式配置各自站点使得彼此执行CCA/eCCA的时间位置交替的，先于彼此出现。例如图7中，运营商1的站点在第一个帧周期内CCA/eCCA起始位置先于运营商2的，这样运营商1执行CCA/eCCA结束后(执行CCA/eCCA成功)发送预留信号，此时运营商2 的站点仍然在执行CCA/eCCA(未结束)，此时会发现非授权载波中有信号发送，从而发送CCA/eCCA执行的后半段时间内非授权载波为忙，从而不能抢占到非授权载波。但是第二个帧周期内，运营商1的CCA/eCCA起始位置设置为晚于运营商2的，运营商2的站点执行CCA/eCCA就会获得成功，而运营商1就会失败。从而第二个帧周期内，运营商2获得非授权载波使用权。第三个帧周期重复第一个帧周期的CCA/eCCA起始位置设置，第四个帧周期重复第二个帧周期的CCA/eCCA起始位置设置，以此类推。
又例如，如果运营商1的站点在第一个帧周期内没有负载需要发送，从而运营商1的站点就会执行CCA/eCCA和发送预留信号，此时运营商2的站点又有数据发送需求，那么运营商2执行CCA/eCCA后，仍然可以获得非授权载波的使用权。从而避免了直接按照交替的时分方式分配资源带来的资源和需求不匹配时的浪费问题(例如第一帧周期使用权分给运营商1，第二帧周期使用权分配给运营商2，以此类推；但是第一帧周期时，运营商1的站点没有发送数据的需求，而运营商2有发送数据需求，但是运营商2却不能使用非授权载波，从而使得资源浪费)。本方案仅仅提供了公平的接入机会，从而很好地解决资源和需求不匹配时的浪费问题。
也可以是，运营商站点使用非授权载波之前，先按照本地运营商的数量确定好自己在每一次帧周期中的位置，且保证公平性。其他运营商的站点在使用非授权载波之前，先接收已经使用该载波的站点发送的相关的CCA/eCCA位置信息，从而再按照公平性的原则确定自己的CCA/eCCA位置，并把自己的CCA/eCCA位置信息通过广播方式或X2口/S1口发送。公平性原则，可以采用下面的方式，例如有Q个运营商，那么在连续的Q个帧周期作为一个循环周期，分别在1至Q个帧周期中分别设置第1个至第Q个运营商的CCA/eCCA位置起始时间分别先于其他运营商。
也可以考虑空口交互的方式获得CCA/eCCA位置信息，例如，运营商1的站点广播自己CCA位置的信息通过授权载波或非授权载波，计划使用非授权载波的运营商2的站点需要先监听并检测附近已经部署的异运营商的站点的CCA位置信息，然后再确定自己的CCA位置信息，从而以保证接入的公平性。
以上所描述的装置实施例仅仅是示意性的，例如，模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另一点，所显示或讨论的模块相互之间的连接可以是通过一些接口，可以是电性，机械或其它的形式。所述各个模块可以是或者也可以不是物理上分开的，可以是或者也可以不是物理单元。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理包括，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用硬件加软件功能模块的形式实现。
此外，本发明实施例还提供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被执行时实现上述接收端的载波复用的方法。
此外，本发明实施例还提供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被执行时实现上述发送端的载波复用的方法。
此外，本发明实施例还提供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被执行时实现上述信息发送方法。
此外，本发明实施例还提供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被执行时实现上述数据传输方法。
此外，本发明实施例还提供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被执行时实现上述解决公平接入非授权载波的方法。
上述以软件功能单元的形式实现的集成的模块，可以存储在一个计算机可读取存储介质中。上述软件功能模块存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random  Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
工业实用性
本发明实施例提供一种载波复用的方法和站点，能够实现某一站点占用的非授权载波在不同站点之间进行复用，提高非授权载波的利用率。

Claims (41)

  1. 一种载波复用的方法，包括：
    站点获取其他的站点发送的预设信息；其中，所述预设信息包括以下信息中的至少一个：所述其他的站点占用的频率资源的复用条件信息、所述其他的站点占用的频率资源的复用方式信息、所述其他的站点占用的频率资源信息、所述其他的站点占用的频率资源的占用时长信息、所述其他的站点所属的运营商信息；
    所述站点根据所述预设信息复用所述其他的站点占用的频率资源。
  2. 根据权利要求1所述的方法，其中，
    所述预设信息由第一下行控制信息DCI承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
    所述预设信息由信令承载，所述信令通过物理下行共享信道PDSCH发送，所述信令由第二下行控制信息DCI调度。
  3. 根据权利要求2所述的方法，其中，所述站点获取其他的站点发送的预设信息包括：
    所述站点根据接收的所述其他的站点使用授权载波发送的信号，获取其他的站点发送的预设信息。
  4. 根据权利要求3所述的方法，其中，所述站点根据接收的所述其他的站点使用授权载波发送的信号，获取其他的站点发送的预设信息包括：
    所述站点通过检测所述授权载波中的信号中的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
    所述站点通过检测所述授权载波中信号中的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预 设信息。
  5. 根据权利要求2所述的方法，在所述站点获取其他的站点发送的预设信息之前，所述方法还包括：
    所述站点执行空闲信道评估CCA或扩展空闲信道评估eCCA；
    当所述站点执行CCA或eCCA忙时，所述站点接收所述其他的站点使用非授权载波发送的包含预设信息的信号；
    相应的，所述站点获取其他的站点发送的预设信息包括：
    所述站点根据接收的所述非授权载波中的信号获取所述预设信息。
  6. 根据权利要求5所述的方法，其中，所述站点根据接收的所述非授权载波中的信号获取所述预设信息包括：
    所述站点通过检测所述非授权载波中的信号中的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
    所述站点通过检测所述非授权载波中的信号中的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
  7. 根据权利要求4或6所述的方法，其中，所述预设的无线网络临时标识RNTI包括：
    预先约定，且与所述站点所属的运营商对应的RNTI；或，
    预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
  8. 根据权利要求2所述的方法，其中，
    所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议LTERel-12中包含的DCI的格式中的任意一种；或，
    所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
  9. 一种载波复用的方法，包括：
    站点执行空闲信道评估CCA或扩展空闲信道评估eCCA；
    当所述站点执行CCA或eCCA成功、获得非授权载波的使用权后，所述站点发送预设信息；
    其中，所述预设信息包括以下信息中的至少一个：所述站点占用的频率资源的复用条件信息、所述站点占用的频率资源的复用方式信息、所述站点占用的频率资源信息、所述站点占用的频率资源的占用时长信息、所述站点所属的运营商信息。
  10. 根据权利要求9所述的方法，其中，
    所述预设信息由第一下行控制信息DCI承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
    所述预设信息由信令承载，所述信令通过物理下行共享信道PDSCH发送，所述信令由第二下行控制信息DCI调度。
  11. 根据权利要求10所述的方法，其中，
    所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧承载；或，
    所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧之后抢占的子帧承载。
  12. 根据权利要求11所述的方法，其中，所述站点发送预设信息包括：
    所述站点使用所述站点执行CCA或eCCA成功的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    所述站点使用所述站点执行CCA或eCCA成功的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    所述站点使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    所述站点使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
  13. 根据权利要求10所述的方法，其中，
    所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧承载；或，
    所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧承载。
  14. 根据权利要求13所述的方法，其中，所述站点发送预设信息包括：
    所述站点使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    所述站点使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    所述站点使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    所述站点使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
  15. 根据权利要求10至14任意一项所述的方法，其中，所述第一DCI或所述第二DCI是由所述站点使用预设的无线网络临时标识RNTI进行加扰的。
  16. 根据权利要求15所述的方法，其中，所述预设的无线网络临时标识 RNTI包括：
    预先约定，且与所述站点所属的运营商对应的RNTI；或，
    预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
  17. 根据权利要求10所述的方法，其中，
    所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议LTERel-12中包含的DCI的格式中的任意一种；或，
    所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
  18. 一种站点，包括：
    获取单元，设置为：获取其他的站点发送的预设信息；其中，所述预设信息包括以下信息中的至少一个：所述其他的站点占用的频率资源的复用条件信息、所述其他的站点占用的频率资源的复用方式信息、所述其他的站点占用的频率资源信息、所述其他的站点占用的频率资源的占用时长信息、所述其他的站点所属的运营商信息；
    复用单元，设置为：根据所述获取单元获取的所述预设信息复用所述其他的站点占用的频率资源。
  19. 根据权利要求18所述的站点，其中，
    所述预设信息由第一下行控制信息DCI承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
    所述预设信息由信令承载，所述信令通过物理下行共享信道PDSCH发送，所述信令由第二下行控制信息DCI调度。
  20. 根据权利要求19所述的站点，其中，所述获取单元是设置为：
    根据接收的所述其他的站点使用授权载波发送的信号，获取其他的站点发送的预设信息。
  21. 根据权利要求20所述的站点，其中，所述获取单元是设置为：
    通过检测所述授权载波中的信号中的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第 二DCI，使用预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
    通过检测所述授权载波中信号中的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
  22. 根据权利要求19所述的站点，所述站点还包括：
    评估单元，设置为：在所述获取单元获取其他的站点发送的预设信息之前，执行空闲信道评估CCA或扩展空闲信道评估eCCA；
    接收单元，设置为：当所述评估单元执行CCA或eCCA忙时，接收所述其他的站点使用非授权载波发送的包含预设信息的信号；
    相应的，所述获取单元是设置为：根据所述接收单元接收的所述非授权载波中的信号获取所述预设信息。
  23. 根据权利要求22所述的站点，其中，所述获取单元是设置为：
    通过检测所述非授权载波中的信号中的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息；或，
    通过检测所述非授权载波中的信号中的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间来获取所述第一DCI或所述第二DCI，使用所述预设的无线网络临时标识RNTI解扰所述第一DCI或所述第二DCI，根据解扰得到的第一DCI或解扰得到的第二DCI获取所述预设信息。
  24. 根据权利要求21或23所述的站点，其中，所述预设的无线网络临时标识RNTI包括：
    预先约定，且与所述站点所属的运营商对应的RNTI；或，
    预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
  25. 根据权利要求19所述的站点，其中，
    所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议LTERel-12中包含的DCI的格式中的任意一种；或，
    所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
  26. 一种站点，包括：
    评估单元，设置为：执行空闲信道评估CCA或扩展空闲信道评估eCCA；
    发送单元，设置为：当所述评估单元执行CCA或eCCA成功、获得非授权载波的使用权后，发送预设信息；
    其中，所述预设信息包括以下信息中的至少一个：所述站点占用的频率资源的复用条件信息、所述站点占用的频率资源的复用方式信息、所述站点占用的频率资源信息、所述站点占用的频率资源的占用时长信息、所述站点所属的运营商信息。
  27. 根据权利要求26所述的站点，其中，
    所述预设信息由第一下行控制信息DCI承载，所述预设信息由所述第一DCI的格式中约定的部分比特或全部比特来描述；或，
    所述预设信息由信令承载，所述信令通过物理下行共享信道PDSCH发送，所述信令由第二下行控制信息DCI调度。
  28. 根据权利要求27所述的站点，其中，
    所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧承载；或，
    所述第一DCI或所述第二DCI，由所述站点执行CCA或eCCA成功的子帧之后抢占的子帧承载。
  29. 根据权利要求28所述的站点，其中，所述发送单元是设置为：
    使用所述站点执行CCA或eCCA成功的子帧中的物理下行控制信道 PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    使用所述站点执行CCA或eCCA成功的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    使用所述站点执行CCA或eCCA成功的子帧之后抢占的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI。
  30. 根据权利要求27所述的站点，其中，
    所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧承载；或，
    所述第一DCI或所述第二DCI，由与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧承载。
  31. 根据权利要求30所述的站点，其中，所述发送单元是设置为：
    使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的物理下行控制信道PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    使用与所述站点执行CCA或eCCA成功的子帧的时间对应的授权载波中的子帧中的增强物理下行控制信道ePDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的PDCCH中的公共搜索空间或约定的搜索空间发送所述第一DCI或所述第二DCI；或，
    使用与所述站点执行CCA或eCCA成功的子帧之后抢占的子帧的时间对应的授权载波中的子帧中的ePDCCH中的公共搜索空间或约定的搜索空间发 送所述第一DCI或所述第二DCI。
  32. 根据权利要求27至31任意一项所述的站点，其中，所述第一DCI或所述第二DCI是由所述发送单元使用预设的无线网络临时标识RNTI进行加扰的。
  33. 根据权利要求32所述的站点，其中，所述预设的无线网络临时标识RNTI包括：
    预先约定，且与所述站点所属的运营商对应的RNTI；或，
    预先约定，且与所述第一DCI或所述第二DCI对应的RNTI。
  34. 根据权利要求27所述的站点，其中，
    所述第一DCI或所述第二DCI的格式为长期演进系统第12版协议LTERel-12中包含的DCI的格式中的任意一种；或，
    所述第一DCI或所述第二DCI的格式为LTE系统以后新引入的DCI格式中的任意一种。
  35. 一种信息发送方法，包括：
    当站点执行空闲信道评估CCA或扩展空闲信道评估eCCA成功、获得非授权载波的使用权后，所述站点判断在所述站点执行CCA或eCCA成功的子帧中的非完整正交频分复用OFDM符号上是否能够发送预留信号；
    当所述站点判断能够发送时，所述站点在所述非完整OFDM符号上发送预留信号；
    当所述站点判断不能够发送时，所述站点在所述非完整OFDM符号之后的第一个完整OFDM符号中发送用于通知其他的站点调整动态增益控制AGC的预设序列。
  36. 根据权利要求35所述的方法，其中，所述站点判断在所述站点执行CCA或eCCA成功的子帧中的非完整OFDM符号上是否能够发送预留信号包括：
    所述站点根据与所述非授权载波聚合的授权载波的子帧以及所述授权载波的OFDM符号定时，确定所述非完整OFDM符号的时长；
    当所述时长等于0或小于单次所述站点执行CCA或eCCA的时长时，则所述站点判断不能发送所述预留信号；
    当所述时长大于或等于单次所述站点执行CCA或eCCA的时长时，则所述站点判断能发送所述预留信号。
  37. 一种数据传输方法，包括：
    站点按预定义或半静态调整的帧周期对非授权载波进行空闲信道评估CCA或扩展空闲信道评估eCCA；其中，所述站点开始执行CCA或eCCA的位置位于所述帧周期内的第一个子帧内从时刻点N之后的任意时刻点位置；
    在所述帧周期内，所述站点在执行CCA或eCCA的子帧或者执行CCA或eCCA的时隙的剩余时间区域发送预留信号或者在所述剩余时间区域内的完整正交频分复用OFDM符号中发送数据，或者从所述执行CCA或eCCA的子帧的下一子帧或者所述执行CCA或eCCA的时隙的下一个时隙开始传输数据。
  38. 一种解决公平接入非授权载波的方法，包括：
    不同运营商的站点在帧周期内使用不同的执行空闲信道评估CCA或扩展空闲信道评估eCCA的起始位置，且使得不同运营商的站点的所述起始位置交替的、先于彼此出现。
  39. 根据权利要求38所述的方法，所述方法还包括：在帧周期内为CCA或eCCA设置固定的时间范围，在该时间范围内每个运营商配置或设置站点执行CCA或eCCA的起始位置。
  40. 根据权利要求38所述的方法，所述方法还包括：
    运营商通过操作维护管理对于站点进行配置CCA或eCCA的起始位置；或者，
    运营商的站点在设置CCA或eCCA的起始位置时，先接收邻近的其他运营商的站点中配置的CCA或eCCA位置信息，然后再按照交替的、先于彼此出现的原则确定自己的CCA或eCCA位置；其中，所述位置信息为描述该站点在时间方向一系列的CCA或eCCA位置。
  41. 根据权利要求38所述的方法，其中，所述使得不同运营商的站点的 所述起始位置交替的、先于彼此出现，是指：
    当有Q个运营商时，设置连续的Q个帧周期作为一个交替的循环周期，分别在1至Q个帧周期中分别设置第1个至第Q个运营商的CCA或eCCA位置起始时间分别先于其他运营商，其中，Q为大于1的整数。
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