[go: up one dir, main page]

WO2016119454A1 - 非授权载波资源的使用方法及装置 - Google Patents

非授权载波资源的使用方法及装置 Download PDF

Info

Publication number
WO2016119454A1
WO2016119454A1 PCT/CN2015/088178 CN2015088178W WO2016119454A1 WO 2016119454 A1 WO2016119454 A1 WO 2016119454A1 CN 2015088178 W CN2015088178 W CN 2015088178W WO 2016119454 A1 WO2016119454 A1 WO 2016119454A1
Authority
WO
WIPO (PCT)
Prior art keywords
enb
indication information
information
unlicensed carrier
resource
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/088178
Other languages
English (en)
French (fr)
Inventor
杨立
苟伟
赵亚军
左志松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to US15/546,902 priority Critical patent/US10425839B2/en
Publication of WO2016119454A1 publication Critical patent/WO2016119454A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and an apparatus for using an unlicensed carrier resource.
  • FIG. 1 is a schematic diagram of the system architecture of the Long Term Evolution (LTE) system in the 3rd Generation Partnership Project (3GPP) cellular mobile family standard, including: mobile management on the core network side.
  • An entity Mobility Management Entity, MME for short
  • SGW Serving GateWay
  • UE user equipment
  • eNode B referred to as eNB
  • S1 interface is an interface between the base station and the packet core network
  • S1 control plane interface S1 for the control plane, S1 for short
  • the S1 user plane interface (S1-U interface) between the eNB and the SGW, the S11 interface between the MME and the SGW, the X2 interface is an interconnection interface between the base stations, and the X2 user plane interface between the eNBs ( X2-User plane, referred to as X2-U) and X2-Control plane (X2-Control plane, referred to as X2-C).
  • FIG. 2 to FIG. 5 are schematic diagrams showing a protocol stack structure of a control plane and a user plane between a UE and an eNB, a core network (MME and SGW) in an LTE system, and a protocol stack structure of a control plane and a user plane between an eNB and an eNB, where
  • the S1 interface is an interface between the base station and the packet core network
  • the X2 interface is an interconnection interface between the base stations.
  • the Media Access Control (MAC) layer mainly provides data transmission for the upper logical channel and is responsible for the allocation of uplink and downlink radio resources, and completes Hybrid Automatic Repeat Request (HARQ) and scheduling. Scheduling), priority processing, and multiplexing (Multiplexing, MUX for short).
  • HARQ Hybrid Automatic Repeat Request
  • the physical layer (Physical Layer, PHY for short) is mainly the data packet MAC protocol data unit (Protocol Data Unit). Provide physical layer related signal processing, transmission means and air interface signal conversion for PDU).
  • the Protocol Radio Link Control (RLC) layer on the upper layer of the Uu air interface is mainly used to provide segmentation and retransmission services for user and control data; Packet Data Convergence Protocol (PDCP) It is mainly used for radio resource control (Radio Resource Control, RRC for short) or user plane to complete user data transmission;
  • RRC layer is mainly used for broadcasting (Broadcast), paging (Paging), radio resource control connection management, Radio bearer control, mobility function, terminal measurement report and control, etc., the above content can be queried in the 3GPP public website, wherein STCP in FIG. 2 is an abbreviation of Scalable TCP, and GTP is general. Abbreviation for the General Packet Radio Service Tunneling Protocol.
  • the terminal and the base station Before the Rel-10 version of the LTE system, the terminal and the base station can only perform uplink and downlink communication in a cell configured on a licensed carrier to implement data transmission and reception on a single authorized carrier. At this time, the base station only configures one terminal for the terminal. Service area. Starting from the Rel-10 version of the LTE system, in order to improve the peak rate of the terminal and dynamically coordinate and utilize the radio resources between the multiple licensed carrier cells, the terminal and the base station can perform uplink and downlink communication in the cells configured on the multiple authorized carriers. Data transmission and reception on multiple authorized carriers.
  • the base station configures multiple serving cells for the terminal: one of the primary serving cells (Primary Cell, abbreviated as Pcell) (the only serving cell that bears the PUCCH channel feedback) + multiple secondary serving cells (Secondary Cell, Scell for short) (at least the serving cell of PDSCH/PUSCH channel data transmission).
  • Primary Cell abbreviated as Pcell
  • secondary Cell Secondary Cell, Scell for short
  • Carrier Aggregation, CA Carrier Aggregation
  • the terminal supports the aggregation of five authorized carriers.
  • the licensed carrier resources in the licensed band of the LTE system are relatively scarce (requires various operators to bid for purchase), and the macro-cell homogeneous configuration of the macro-base station (Macro eNB) cannot meet the increasing traffic of LTE users.
  • Demand, therefore, LTE operators hope to develop and utilize unlicensed carrier resources in unlicensed frequency bands (no need for each operator to bid for purchases, multiple operators can freely compete for preemption and use), and adopt micro A micro-area heterogeneous deployment network under the base station (Micro eNB) or a low-power base station (LPN) for coverage of service hotspots, such as a densely populated area.
  • FIG. 6 is a schematic diagram of two uplink and downlink radio coverages being substantially the same, and the macro cells on two adjacent different licensed carriers in the same licensed band are configured to operate in CA, and the UE can simultaneously and two authorized within the effective coverage.
  • the macro cell on the carrier performs uplink and downlink communication to implement data transmission and reception on the dual authorized carrier.
  • Figure 2 adds two LPN microcells, which are respectively on two different unlicensed carriers in the unlicensed band, and cooperate through the ground fiber and the two macros in Figure 6.
  • the cell maintains the synchronization of the timing relationship; the macro cell on the two authorized carriers + the micro cell on the two unlicensed carriers can theoretically be configured together to operate as a CA, and the UE can simultaneously and two in its effective coverage.
  • the macro cell on the authorized carrier and the micro cell on the two unlicensed carriers perform uplink and downlink communication to implement data transmission and reception on multiple carriers.
  • N parallel HARQ entities are configured in a MAC protocol entity, and are generated under a specific Transmission Time Interval (TTI).
  • TTI Transmission Time Interval
  • N HARQ data packets (or MAC PDUs) through a series of related processing of the physical layer PHY entity (eg, channel coding, modulation, resource block adaptation mapping, etc.), and finally converted into LTE specific physical waveform signals, Transmitted on N authorized carriers; the UE or eNB as the receiving end performs the reverse processing through the MAC/PHY entity.
  • the only primary serving cell Pcell and N-1 secondary serving cells Scell are configured on the authorized carrier.
  • correlation processing eg, channel coding, modulation, resource block adaptation mapping, etc.
  • each eNB needs to Listening to the busy channel of the detection channel is first monitored by means of Listening Before Listening (LBT), and then attempting to preempt the channel resources on the unlicensed carrier.
  • LBT Listening Before Listening
  • eNB1 of operator A configures CA:Pcell1+U-Scell for its own user UE1
  • eNB2 of operator B configures CA:Pcell2+U-Scell for its own user UE2
  • Pcell1 and Pcell2 is located on the respective authorized carriers of the carrier A/B, and there is no problem of interference collision and channel resource sharing between them; but the U-Scell is on the same unlicensed carrier, and each time the operator A/B
  • the eNB wants to send data on the U-Scell, and must first monitor and detect whether the unlicensed carrier is occupied by other nodes eNB/WIFI AP/UE.
  • the eNB1 when the eNB1 performs a channel state assessment (CCA) at a certain time, the received energy on the full bandwidth of the unlicensed carrier is greater than a certain threshold, indicating that it is already occupied at this time, and the eNB1 cannot be used again at this moment. To preempt the channel resources on the unlicensed carrier, otherwise it will cause strong interference to other nodes. Then, eNB1 usually backs up for a period of time, waits for the next specific moment, and then performs the next round of CCA detection, and then attempts to preempt the resources on the unlicensed carrier.
  • CCA channel state assessment
  • the eNB1 When the received energy on the full bandwidth of the unlicensed carrier detected by the eNB1 is less than a certain threshold, it indicates that it is idle at this time, and the eNB1 can separately occupy a channel Occupancy Time (COT) for similar authorization.
  • the physical downlink control channel Physical Downlink Control Channel, hereinafter referred to as PDCCH
  • uplink and downlink scheduling and physical downlink shared channel Physical Downlink Shared Channel, PDSCH
  • Physical Uplink shared channel Physical Uplink Shared Channel, short for physical channel
  • the eNB can perform downlink data block scheduling even if it can successfully preempt its local unlicensed carrier channel resources.
  • the UE must be able to receive reliably; because there may be some hidden nodes around the receiving UE, these hidden nodes may not be able to perceive some reserved occupancy signal of the transmitting eNB (they are also idle for the CCA detection of the local surrounding environment).
  • the various types of transmit signals of the hidden node cannot be strongly perceived on the sender eNB side, but it will generate strong reception collision interference to the receiver UE, and the UE can hardly correctly demodulate the data block from the serving eNB; It is shown that after the eNB successfully preempts the unlicensed carrier channel resource and sends the PDCCH downlink scheduling and the PDSCH data block, the UE side cannot receive the demodulation correctly due to strong interference of the hidden node (the portion shown by the ellipse in FIG. 10). The PDSCH data block then receives a demodulation failure NACK through the PUCCH channel feedback on the licensed carrier after a specific timing relationship.
  • the eNB may send a certain collision detection command (DL collision Probe) or other similar pre-preparation before the formal downlink scheduling data block.
  • DL collision Probe a certain collision detection command
  • the UE After the UE receives the detection command, the UE starts to perform CCA detection on the local radio environment, until the CCA detects that the UE's local unlicensed carrier channel resource is idle, and then the UE can send feedback to the eNB to notify that the UE side has completed The preparation for reliable reception of downlink data blocks.
  • normal downlink scheduling and data block transmission are started.
  • the foregoing coordination mode requires that the eNB/UE needs to perform one or more early collision detection and feedback loopback before each formal data packet transmission, and the sender eNB needs to reserve a local non-authorization for a long period of time during the collision detection loopback.
  • Carrier channel resources in order to prevent the unsolicited channel resources of the sender eNB from being stolen by other competing nodes, the control signaling and resource overhead associated with this method are relatively wasteful. Packet scheduling delays are large.
  • the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB needs to reserve the local unlicensed carrier channel resources for a long period of time during the collision detection loopback, resulting in wasted resources and packet delay.
  • the problem has not yet come up with an effective solution.
  • the present invention provides a method and apparatus for using an unlicensed carrier resource.
  • a method for using an unlicensed carrier resource including: receiving, by an eNB, indication information reported by a UE, where the indication information is used to indicate that a secondary serving cell that is local to the UE is idle; The eNB detects whether the secondary serving cell of the eNB is idle, and the eNB determines whether to use the unlicensed carrier resource that the UE has already occupied according to the detection result.
  • the eNB receives the indication information reported by the UE, where the eNB receives the specified PUCCH resource information reported by the UE, where the specified PUCCH resource information carries the indication information; and/or the eNB receives the channel state information reported by the UE ( Channel State Information (CSI), where the CSI is a preset value, the preset value is used as the indication information; and/or the eNB receives the UE that is reported by the UE.
  • CSI Channel State Information
  • the eNB receives the specified PUCCH resource information reported by the UE, where the eNB receives the uplink control information (Uplink Control Information, UCI for short) reported by the UE, where the UCI includes a control domain word dedicated to carrying the indication information. Section.
  • UCI Uplink Control Information
  • the eNB determines whether to use the unlicensed carrier resource that the UE has already occupied according to the detection result, and includes: determining, when the detection result indicates that the secondary serving cell of the eNB is idle, determining that the UE continues to occupy the unauthorized a carrier resource; when the detection result indicates that the secondary serving cell local to the eNB is not idle, determining that the UE releases the unlicensed carrier resource previously occupied.
  • the eNB further includes: sending, by the eNB, downlink control information (Downlink Control Information, DCI for short) carrying the dedicated control domain byte to the a UE, wherein the UE releases the previously occupied unlicensed carrier resource under the indication of the DCI carrying the dedicated control domain byte.
  • DCI Downlink Control Information
  • a method for using an unlicensed carrier resource including: when the secondary serving cell local to the user equipment UE is idle, the UE idles the secondary serving cell local to the UE
  • the indication information is sent to the evolved base station eNB; after the eNB determines whether to use the unlicensed carrier resource occupied by the UE according to the indication information, the UE receives the control information delivered by the eNB, where the The control information is used to control whether the UE uses an unlicensed carrier resource that the UE has already occupied.
  • the sending, by the UE, the indication information to the evolved base station eNB the: the UE sends the specified physical uplink control channel PUCCH resource information to the eNB, where the specified PUCCH resource information carries the Instructing information; and/or the UE transmitting channel state information CSI to the eNB, wherein the preset value is used as the indication information when the CSI is a preset value; and/or The UE sends a pseudo acknowledgment character ACK sequence of the secondary serving cell downlink dummy data block of the UE to the eNB, where the pseudo ACK sequence carries the indication information.
  • the sending, by the UE, the specified PUCCH resource information to the eNB includes: sending, by the UE, a UCI to the eNB, where the UCI includes a control domain byte dedicated to carrying the indication information.
  • the method further includes: the UE simultaneously sending a reserved occupancy signal, where the reserved occupation The signal indicates that the UE is currently occupying the unlicensed carrier resource.
  • the method further includes: the UE transmitting, in the secondary serving cell of the UE, a PUSCH data block controlled by the eNB without uplink scheduling information, where the eNB demodulates the PUSCH data block.
  • the information is fed back to the eNB through the physical uplink control channel PUCCH of the licensed carrier.
  • a device for using an unlicensed carrier resource is further provided, which is applied to an evolved base station eNB, and includes: a receiving module, configured to receive indication information reported by a user equipment UE, where The indication information is used to indicate that the secondary serving cell of the UE is idle; the detecting module is configured to detect, according to the indication information, whether the secondary serving cell of the eNB is idle; the determining module is configured to determine according to the detection result Whether to use the unlicensed carrier resources that the UE has already occupied.
  • the receiving module is further configured to receive the specified physical uplink control channel PUCCH resource information that is reported by the UE, where the specified PUCCH resource information carries the indication information; and/or receives the channel state information CSI reported by the UE.
  • the CSI is a preset value
  • the preset value is used as the indication information; and/or the pseudo confirmation of the secondary serving cell downlink dummy data block of the UE reported by the UE is received.
  • a character ACK sequence wherein the pseudo ACK sequence carries the indication information.
  • the receiving module is further configured to receive a UCI reported by the UE, where the UCI includes a control domain byte dedicated to carrying the indication information.
  • the determining module includes: a first determining unit, configured to: when the detection result indicates that the secondary serving cell local to the eNB is idle, determining that the UE continues to occupy the unlicensed carrier resource; And determining, when the detection result indicates that the secondary serving cell local to the eNB is not idle, determining that the UE releases the occupied unlicensed carrier resource.
  • the second determining unit comprises: a sending subunit, configured to send a DCI carrying a dedicated control domain byte to the UE, wherein the UE carries the dedicated control domain byte The unlicensed carrier resource occupied before is released under the indication of the DCI.
  • a device for using an unlicensed carrier resource is further provided, which is applied to a user equipment UE, and includes: a sending module, configured to: when the secondary serving cell of the UE is idle, the UE is used And the indication information that the local secondary serving cell is idle is sent to the evolved base station eNB, and the receiving module is configured to: after the eNB determines, according to the indication information, whether to use the unlicensed carrier resource that is occupied by the UE, Control information The control information is used to control whether the UE uses an unlicensed carrier resource that the UE has already occupied.
  • the sending module is configured to send, to the eNB, physical uplink control channel PUCCH resource information, where the specified PUCCH resource information carries the indication information; and/or send CSI to the eNB, where And when the CSI is a preset value, the preset value is used as the indication information; and/or a pseudo confirmation character of a secondary serving cell downlink dummy data block of the UE is sent to the eNB.
  • An ACK sequence wherein the pseudo ACK sequence carries the indication information.
  • the sending module is further configured to send a UCI to the eNB, where the UCI includes a control domain byte dedicated to carrying the indication information.
  • the eNB when the eNB actively reports that the secondary serving cell of the UE is idle, the eNB determines whether the local secondary serving cell is idle, and then determines whether to use the technical solution of the unlicensed carrier resource occupied by the UE, and solves the related problem.
  • the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB needs to compare the wasted resources and the packet delay caused by the local unlicensed carrier channel resources during the collision detection loopback.
  • the big problem avoids unnecessary resource overhead, reduces the packet scheduling delay, and at the same time circumvents the strong interference damage of hidden nodes on the UE side.
  • FIG. 1 is a schematic diagram of a system architecture of LTE in the related art
  • FIG. 2 is a schematic diagram of a control plane structure of an LTE Uu/S1 interface in the related art
  • FIG. 3 is a schematic diagram of a user plane architecture of an LTE Uu/S1 interface in the related art
  • FIG. 4 is a schematic diagram of a control plane structure of an LTE X2 interface in the related art
  • FIG. 5 is a schematic diagram of a user plane architecture of an LTE X2 interface in the related art
  • FIG. 6 is a schematic diagram of a TE authorized carrier aggregation in the related art
  • FIG. 8 is a schematic diagram of a working architecture of LTE purely licensed carrier aggregation in the related art
  • FIG. 9 is a schematic diagram of a working architecture of LTE having unlicensed carrier aggregation in the related art.
  • FIG. 10 is a schematic diagram of downlink scheduling and transmission success, reception conflict failure in the related art.
  • 11 is a schematic diagram of downlink resource scheduling and transmission, and receiver resource protection in the related art
  • FIG. 13 is a structural block diagram of an apparatus for using an unlicensed carrier resource according to an embodiment of the present invention.
  • FIG. 14 is a block diagram showing still another structure of an apparatus for using an unlicensed carrier resource according to an embodiment of the present invention.
  • 15 is another flow chart of a method for using an unlicensed carrier resource according to an embodiment of the present invention.
  • 16 is a schematic diagram of an eNB CCA success according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of an eNB CCA failure according to an embodiment of the present invention.
  • FIG. 18 is another structural block diagram of an apparatus for using an unlicensed carrier resource according to an embodiment of the present invention.
  • 19 is a schematic diagram of a system for using an unlicensed carrier resource according to a preferred embodiment 1 of the present invention.
  • 20 is a schematic diagram of a system for using an unlicensed carrier resource according to a preferred embodiment 2 of the present invention.
  • FIG. 12 is a flowchart of a method for using an unlicensed carrier resource according to an embodiment of the present invention, as shown in FIG. The following steps:
  • step S1202 the eNB receives the indication information reported by the UE, where the indication information is used to indicate that the secondary serving cell of the UE is idle;
  • Step S1204 The eNB detects whether the secondary serving cell local to the eNB is idle, triggered by the indication information.
  • Step S1206 The eNB determines, according to the detection result, whether to use the unlicensed carrier resource occupied by the UE.
  • the eNB determines whether the secondary serving cell of the eNB is idle, and then determines whether to use the technical solution of the unlicensed carrier resource occupied by the UE, that is, the eNB does not take the initiative.
  • the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB needs to reserve for a long time during the conflict detection loopback.
  • the technical solution is to determine whether the secondary serving cell of the eNB is idle.
  • the problem of wasted resources and packet delay caused by occupying local unlicensed carrier channel resources is relatively large. It avoids unnecessary resource overhead and reduces packet scheduling delay.
  • step S1206 may be based on other internal information of the eNB, such as a scheduling policy, a data buffer to be sent, and the like, according to the detection result, whether to use the UE. Unlicensed carrier resources.
  • the eNB may receive the specified PUCCH resource information reported by the UE, where the eNB receives the specified PUCCH resource information reported by the UE, where And (2) the eNB receives the channel state information CSI reported by the UE, where the CSI is a preset value, and the preset value is used as the indication information; (3) The eNB receives the pseudo ACK sequence of the secondary serving cell downlink dummy data block of the UE reported by the UE, where the pseudo ACK sequence carries the indication information, and the technical solutions of the above (1)-(3) can be used separately. It can be used in combination according to the actual situation, which is not limited by the embodiment of the present invention.
  • the foregoing scenario (1) can be implemented by: the eNB receiving the UCI reported by the UE, where the designated control domain byte of the UCI carries the foregoing indication information. .
  • step S1206 may be implemented by: determining, when the foregoing detection result indicates that the secondary serving cell of the eNB is idle, determining that the UE continues to occupy the unlicensed carrier resource;
  • the detection result indicates that the secondary serving cell of the eNB is not idle, it is determined that the unlicensed carrier resource that is occupied by the UE is released, and after determining that the UE releases the occupied unlicensed carrier resource, the method further includes: the eNB is to carry the dedicated The DCI of the control domain byte is sent to the UE, where the UE releases the previously used unlicensed carrier resource under the indication of the DCI, that is, a new control domain byte can be set in the DCI (corresponding to the foregoing implementation)
  • the dedicated control field byte of the example indicates the unlicensed carrier resources occupied before the UE is released.
  • an apparatus for using an unlicensed carrier resource is further provided, which is applied to an evolved base station eNB, and is used to implement the foregoing embodiments and preferred embodiments.
  • the modules involved are explained.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 13 is a structural block diagram of an apparatus for using an unlicensed carrier resource according to an embodiment of the present invention, including:
  • the receiving module 130 is configured to receive the indication information reported by the user equipment UE, where the indication information is used to indicate that the secondary serving cell local to the UE is idle;
  • the detecting module 132 is connected to the receiving module 130, and is configured to detect, according to the triggering of the indication information, whether the secondary serving cell local to the eNB is idle;
  • the determining module 134 is connected to the detecting module 132 and configured to determine whether to use the unlicensed carrier resources occupied by the UE according to the detection result.
  • the eNB determines whether the secondary serving cell of the eNB is idle, and then determines whether to use the unlicensed carrier resource occupied by the UE, that is, the eNB, when the UE actively reports that the secondary serving cell of the UE is idle.
  • the process of determining whether the secondary serving cell of the eNB is idle is not actively performed, and such a technical method is adopted.
  • the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB needs to reserve a waste of resources and packet delay caused by the local unlicensed carrier channel resources during the collision detection loopback. Both are relatively large problems, avoiding unnecessary resource overhead and reducing packet scheduling delay.
  • the receiving module 130 is further configured to receive the specified PUCCH resource information reported by the UE, where the specified PUCCH resource information carries the indication information; and/or receives the CSI reported by the UE, where the CSI is a preset value. And the pre-set value is used as the indication information; and/or the pseudo-acknowledgment character ACK sequence of the secondary serving cell downlink dummy data block of the UE reported by the UE, where the pseudo ACK sequence carries the indication information, In an optional example of the embodiment of the present invention, the receiving module 130 is further configured to receive the UCI reported by the UE, where the UCI includes a control domain byte dedicated to carrying the indication information.
  • FIG. 14 is still another structural block diagram of an apparatus for using an unlicensed carrier resource according to an embodiment of the present invention.
  • the determining module 134 may include: a first determining unit 1340, configured to perform the foregoing detection. When the result indicates that the secondary serving cell of the eNB is idle, it is determined that the UE continues to occupy the unlicensed carrier resource; and the second determining unit 1342 is configured to determine that the UE is released when the detection result indicates that the secondary serving cell of the eNB is not idle.
  • the above unlicensed carrier resources are examples of the determining module 134.
  • the second determining unit 1342 includes: a sending subunit 13420, configured to send downlink control information DCI carrying a dedicated control domain byte to the UE, where the UE is released under the indication of the DCI The above unlicensed carrier resources are occupied.
  • FIG. 15 is another flowchart of a method for using an unlicensed carrier resource according to an embodiment of the present invention. As shown in Figure 15, the following steps are included:
  • Step S1502 when the secondary serving cell of the user equipment UE is idle, the UE sends the indication information that the local secondary serving cell is idle to the evolved base station eNB;
  • Step S1504 After the eNB determines, according to the indication information, whether to use the unlicensed carrier resource that is occupied by the UE, the UE receives the control information that is sent by the eNB, where the control information is used to control whether the UE uses the UE. Unlicensed carrier resources.
  • the eNB determines whether to use the unlicensed carrier resource occupied by the UE according to the detection result sent by the eNB.
  • the technical solution that is, the eNB does not actively perform the process of determining whether the secondary serving cell of the eNB is idle, and adopts the technical solution to solve the related art, the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB It is necessary to reserve a large amount of wasted resources and packet delay caused by occupying the local unlicensed carrier channel resources during the collision detection loopback, avoiding unnecessary resource overhead and reducing the packet scheduling delay.
  • step S1502 may be implemented in the following aspects: (1) the UE sends the specified PUCCH resource information to the eNB, where the specified PUCCH resource information carries the indication information, where In an optional example of the embodiment of the present invention, the UE sends uplink control information UCI to the eNB, where The specified control domain byte of the UCI carries the indication information; (2) the UE sends the CSI to the eNB, where the preset value is used as the indication information when the CSI is a preset value; (3) The UE transmits a pseudo acknowledgment character ACK sequence of the secondary serving cell downlink dummy data block of the UE to the eNB, where the pseudo ACK sequence carries the indication information, and the (1)-(3) are only implemented as the present invention. An optional example of the example, and the above (1)-(3) may be used alone or in combination according to actual conditions.
  • the UE when the UE sends the indication information that the UE is in the eNB, the UE sends the reserved occupancy signal, where the reserved occupancy signal indicates that the UE is currently occupying the unauthorized.
  • Carrier resources to avoid other terminals or nodes occupying the above unlicensed carrier resources.
  • the embodiment of the present invention further provides the following technical solution: the UE sends a PUSCH data block with no eNB uplink scheduling information control in the secondary serving cell of the UE, where the demodulation information used by the eNB to demodulate the PUSCH data block is authorized.
  • the PUCCH of the carrier is fed back to the above eNB.
  • Step S0 Initialization premise, which is a step that needs to be completed in both examples, that is, both the eNB and the UE have the capability of performing CA on the unlicensed carrier.
  • the eNB can provide a configuration of an LTE unlicensed carrier aggregation of a specific UE that is served by the eNB through an extensive scan and monitoring detection of the target unlicensed frequency band in the previous stage, that is, a Pcell on at least one authorized carrier (corresponding to the above embodiment) Primary service cell) and one or N unlicensed carrier cells U-Scell(i) (corresponding to the secondary serving cell of the above embodiment), where i is the index number of the unlicensed carrier, and subsequently, in order to simplify the description, it is assumed that only In the case of an unlicensed carrier cell, the index i is removed.
  • U-Scell is a purely downlink Frequency Division Duplex (FDD) frame format cell, that is, Unlicensed-Supplementary Downlink (referred to as Unlicensed-Supplementary Downlink).
  • FDD Frequency Division Duplex
  • U-SDL Unlicensed-Supplementary Downlink
  • U-SDL working mode
  • U-Scell is a time division duplex (TDD) frame format cell with uplink and downlink, that is, Unlicensed-Uplink Downlink (U) -UL/DL) Working mode situation.
  • TDD Time division duplex
  • the UE For a specific UE, even if the eNB has not performed downlink CCA detection and unlicensed channel resource preemption on the U-Scell, even if it has not been scheduled for downlink data block (for example, the PDCCH channel on the licensed carrier has not yet been related to the UE)
  • the downlink scheduling information of the U-Scell the UE also needs to periodically perform local CCA detection on the U-Scell.
  • the CCA detects that the local U-Scell is idle at a certain time, the UE reports to the eNB through the PUCCH channel on the authorized carrier, and notifies the eNB that the UE has no collision at present, and is ready to receive the downlink data block; With downlink data, it can be scheduled to send.
  • the UE also needs to send the reserved occupation signal locally to prevent the unlicensed channel resources of the receiver from being snatched by other nodes.
  • the eNB performs local CCA downlink detection on the U-Scell immediately after receiving the relevant information indication in the PUCCH channel feedback. If the CCA detects that the local U-Scell resource is idle, the eNB can immediately preempt the unlicensed channel resources on the U-Scell, and then perform the PDCCH downlink scheduling and the PDSCH data block transmission in the preempted COT time window, as shown in the figure. 16 is shown. If the CCA detects that the local U-Scell resource is not idle, the eNB cannot preempt the non-grant on the U-Scell. The right channel resource immediately informs the UE through the PDCCH control channel command on the authorized carrier: the UE immediately stops transmitting the local reserved occupied signal, and releases the unlicensed carrier channel resource, as shown in FIG.
  • the UE receives the relevant downlink scheduling on the PDCCH the PDSCH data block is normally received according to the current LTE technical mode; if the UE receives the command indication on the PDCCH that the local reservation occupation signal is stopped, the UE immediately releases the command.
  • the unreserved channel resources that are reserved for the local reservation on the U-Scell are returned to the S1, and the UE-side local collision detection and reporting of the next period is performed.
  • the eNB configures the resources of the PUCCH channel (a series of specific physical resource blocks (PRBs)) for the UE in advance, and the UE must receive the demodulated guide according to the received eNB.
  • the frequency/interference/downlink data block is used to determine the content of the filling/bearing in the PUCCH channel, and the following data block demodulates whether the ACK/NACK is correct, and the PUCCH feedback information related to the CSI and the Pcell and the U-Scell downlink data transmission respectively correspond to the PUCCH channel.
  • a part of the resource is mapped to a specific PRB resource block by a specific physical layer coding method.
  • the PUCCH feedback information related to the U-Scell downlink data transmission does not always exist. (There may be no ACK/NACK and CSI information corresponding to the U-Scell downlink), so the corresponding part of the PUCCH channel resource can be utilized to feed back some other auxiliary information on the UE side.
  • the embodiment of the present invention allows the UE to use the idle PUCCH channel resource part to feed back the UE side without conflict indication.
  • the conflict-free indication fed back to the eNB on the PUCCH channel can be expressed by introducing a new control byte field, or can be expressed by using the existing channel state information CSI of the current LTE technology, for example, a specific CSI value can be used to indicate UE reception.
  • the party has no conflicts.
  • the eNB side can start to try to perform CAA and downlink unlicensed channel resource preemption on the U-Scell. Otherwise, it does not actively preempt.
  • the existing mapping mode and sending mode of the PUCCH channel resource are not changed due to the new content of the embodiment of the present invention, but only the bearer meaning of some of the byte domains is changed.
  • the conflict-free indication that is fed back to the eNB on the PUCCH channel can also be expressed by using the existing ACK/NACK information of the current LTE technology.
  • the pseudo ACK sequence corresponding to the U-Scell can be used (the actual eNB does not have the UE on the U-Scell yet).
  • the scheduling of the downlink data packet is performed, so there should be no ACK/NACK information to indicate that the UE receiver has no collision.
  • the eNB side starts to try to perform CCA and downlink unlicensed channel resources on the U-Scell. Preempt, otherwise do not take the initiative to seize.
  • the eNB configures PDCCH control channel resources (a series of specific PRBs) for the UE in advance, and the eNB must determine the content of the PDCCH channel to be filled/beared according to its own resource scheduling information, such as DCI, PRB.
  • the resource location information, the scheduling coding policy information MCS, the Modulation Coding Scheme; and the PDCCH control information related to the Pcell and the U-Scell downlink data transmission respectively correspond to a part of the PDCCH channel resource, and are mapped to the PRB resource block by using a specific physical layer coding manner.
  • the PDCCH control information related to the U-Scell downlink data transmission does not always exist. Therefore, the corresponding part of the PDCCH channel resource can be utilized to send other control information of the eNB side.
  • PDCCH The existing mapping mode and the sending mode of the channel resources are not changed due to the new content of the embodiment of the present invention, but only the bearer meaning of some of the byte domains is changed.
  • the embodiment of the present invention allows the eNB to use the idle PDCCH channel resource part to send an indication that the UE stops sending the local reserved occupation signal.
  • the indication that the UE stops transmitting the local reserved occupation signal on the PDCCH may be expressed by introducing a new control byte field, or may be expressed by using the existing modulation coding policy information (MCS) of the current LTE technology.
  • MCS modulation coding policy information
  • a specific MCS value may be used to indicate that the eNB sender has a conflict. Based on the specific MCS value, the UE side can know that the eNB side has been in a conflict state for a short period of time, and needs to release the unlicensed channel resources occupied by the local reservation in time.
  • the sender eNB cannot actively perform CCA detection on the U-Scell and preemption of the downlink unlicensed channel resources without knowing whether the UE side of the receiver is in conflict or not; After receiving the conflict-free indication reported by the at least one UE, it is triggered to perform the CCA detection on the U-Scell and the preemption of the downlink unlicensed channel resources.
  • the CCA detection and the unlicensed channel resource preemption of the sender eNB are meaningful only if it is ensured that at least one UE receiver has no collision on the U-Scell; or alternatively, the eNB knows which The UEs as the receivers have no conflicts on the U-Scells, so that the multiple UEs can be downlinked with better selection. Otherwise, even if the eNB preempts the U-Scell downlink resources, it cannot receive the collisions on all UE sides.
  • the downlink data block transmission is performed reliably and efficiently.
  • the related new control information introduced in the content of the embodiment of the present invention utilizes a specific idle PRB resource block on the PDCCH/PUCCH channel that the eNB has configured for the UE, and does not bring too much additional resource overhead.
  • the mode of the DL is the same as the case 1 above, except that the eNB performs the downlink CCA detection and the resource preemption is restricted in the location related to the TDD DL subframe; the UL corresponding UE performs the uplink CCA detection and the resource preemption, but is limited to the TDD UL subframe related. Location, which will be described in detail below:
  • the sender UE It is also necessary to periodically perform local CCA detection on the U-Scell.
  • the CCA detects that the local U-Scell is idle at a certain time
  • the UE reports the eNB to the eNB through the PUCCH channel on the authorized carrier, and informs the eNB that the UE is ready to receive the downlink data block as the receiver, and the UE is the sender.
  • the UE also needs to send a local reserved occupation signal to prevent the local unlicensed channel resource from being snatched by other nodes; optionally, the UE may also try to send an uplink PUSCH data block controlled by the eNB-free uplink scheduling information on the U-Scell, where The uplink block-related MCS format/PRB resource block location information (for the receiver eNB side demodulation) is also fed back to the eNB through the PUCCH channel on the grant carrier.
  • the eNB Immediately after receiving the PUCCH channel feedback, the eNB performs local CCA detection on the U-Scell. If the CCA detects that the local U-Scell resource is idle, the eNB can immediately preempt the unlicensed channel resources on the U-Scell, and then perform PDCCH downlink scheduling and PDSCH data block transmission in the preempted COT time window. There may be PDCCH uplink scheduling and PUSCH data block reception. If the UE has attempted to transmit the uplink PUSCH data block without eNB uplink scheduling information control on the U-Scell, the eNB follows the relevant MCS format/PRB resource of the PUCCH channel feedback. The source block location information demodulates it.
  • the eNB If the CCA detects that the local U-Scell resource is not idle, and the eNB cannot preempt the unlicensed channel resource on the U-Scell, the eNB immediately informs the UE through the PDCCH control command on the authorized carrier: the UE immediately stops sending the local reserved occupation signal, releasing the non- Authorize carrier channel resources. If the UE has attempted to transmit an uplink PUSCH data block with no eNB uplink scheduling information control on the U-Scell, the eNB does not demodulate it for discarding (which may have been corrupted by strong local interference of the eNB).
  • the UE demodulates the PDSCH data block on the U-Scell according to the current LTE technical mode, and/or transmits the PUSCH data block; if the UE receives the PDCCH, When the command indication of the local reserved occupation signal is stopped, the unlicensed carrier channel resources occupied by the local reservation on the U-Scell are immediately released, and the uplink PUSCH data block controlled by the eNB-free uplink scheduling information is no longer attempted to be sent back to the S1. The UE side local collision detection and reporting of the next period is performed.
  • the UE allows to attempt to transmit an uplink PUSCH data block controlled by the eNB-free uplink scheduling information on the U-Scell, and the uplink data block-related MCS format/PRB resource block location information (for the receiver eNB demodulation) passes the PUCCH on the authorized carrier.
  • the channel is fed back to the eNB.
  • the transmitting UE allows the PUSCH data block to be sent first on the U-Scell before the receiving eNB performs the uplink scheduling on the receiving eNB.
  • the UE After the eNB performs the PDCCH uplink scheduling on the UE, the UE completely follows the eNB.
  • the uplink scheduling information is used to transmit a PUSCH data block.
  • the embodiment of the present invention achieves the following technical effects: the receiving eNB cannot actively perform CCA detection on the U-Scell and preemption of the uplink unlicensed channel resources without knowing whether the transmitting UE has a conflict; After the conflict-free indication reported by the at least one UE, the CCA detection on the U-Scell and the preemption of the uplink unlicensed channel resources are triggered.
  • the CCA detection and the unlicensed channel resource preemption of the receiving eNB are meaningful only if it is ensured that at least one UE sender has no collision on the U-Scell; or alternatively, the eNB knows which multiples The UEs as the sender have no collision on the U-Scell, and can perform uplink scheduling on multiple UEs more preferentially; otherwise, even if the eNB preempts the U-Scell uplink resource, since all the UEs it serves have local transmission conflicts, Efficient and efficient uplink block transmission.
  • the related new control information introduced in the content of the embodiment of the present invention utilizes a specific idle PRB resource block on the PDCCH/PUCCH channel that the eNB has configured for the UE, and does not bring too much additional resource overhead.
  • FIG. 18 is still another structural block diagram of an apparatus for using an unlicensed carrier resource according to an embodiment of the present invention, including:
  • the sending module 180 is configured to: when the secondary serving cell of the UE is idle, send the indication information that the local secondary serving cell is idle to the evolved base station eNB;
  • the receiving module 182 is connected to the sending module 180, and is configured to receive the control information sent by the eNB after the eNB determines whether to use the unlicensed carrier resource occupied by the UE according to the indication information, where the control information is used to control the foregoing. Whether the UE uses the unlicensed carrier resources occupied by the UE.
  • the UE actively reports that the local secondary serving cell is idle, and checks at the eNB. After determining whether the secondary serving cell of the eNB is idle, determining whether to use the unlicensed carrier resource occupied by the UE according to the detection result sent by the eNB, that is, the eNB does not actively perform determining whether the secondary serving cell of the eNB is idle.
  • the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB needs to reserve a local unlicensed carrier channel resource for a long time during the collision detection loopback. The waste of resources and packet delay are relatively large, avoiding unnecessary resource overhead and reducing packet scheduling delay.
  • the sending module 180 is configured to send, to the eNB, a physical uplink control channel PUCCH resource information, where the specified PUCCH resource information carries the indication information; and/or send CSI to the eNB, where the CSI is When the value is a preset value, the preset value is used as the indication information; and/or a pseudo ACK sequence of the secondary serving cell downlink dummy data block of the UE is transmitted to the eNB, where the pseudo ACK sequence carries the foregoing Instructing information, wherein the sending module 180 is further configured to send the uplink control information UCI to the eNB, where the designated control domain byte of the UCI carries the indication information.
  • the macro cell A on the carrier A of the carrier A covers a number of unlicensed carrier micro-cells U-Scell1/2/3 with the same frequency point, and there are several Wifi AP nodes with the same frequency point.
  • the deployment is as shown in the figure. 19 is shown.
  • the LPN1/3 nodes to which U-Scell 1 and 3 belong can hear each other without a hidden relationship, and the LPN 2 node to which U-Scell 2 belongs is a hidden node of the LPN 1/3 node, which will cause strong interference to UE 1.
  • the eNB determines that the U-Scell 1 in the CA configuration of the UE 1 is in the U-SDL mode by the extensive scanning and monitoring detection of the target unlicensed band 5150MHz-5350MHz.
  • the working frequency range is selected as: 10M of 5160MHz-5170MHz. bandwidth. According to the technical solution of the embodiment of the present invention, although the U-Scell 1 is configured and activated, the eNB/LPN 1 does not actively perform downlink CCA detection and unlicensed channel resource preemption on the U-Scell 1.
  • UE 1 For UE 1, even if eNB/LPN 1 has not performed downlink CCA detection and unlicensed channel resource preemption on U-Scell 1, even if it has not been scheduled for downlink data block (such as PDCCH channel on macro cell A) Without the downlink scheduling information of UE 1 regarding U-Scell 1, UE 1 also needs to periodically perform local CCA detection on U-Scell 1. When the CCA detects that the local U-Scell 1 is idle at a certain time, it reports to the eNB/LPN 1 through the PUCCH channel on the macro cell A, and notifies the eNB/LPN 1: that the UE 1 has no collision at present, and has received the downlink.
  • the CCA detects that the local U-Scell 1 is idle at a certain time, it reports to the eNB/LPN 1 through the PUCCH channel on the macro cell A, and notifies the eNB/LPN 1: that the UE 1 has no collision at present, and has received the downlink.
  • the expression bearer of the collision-free indication is two consecutive pseudo-ACK sequences corresponding to the U-Scell 1 downlink dummy block in the PUCCH.
  • the eNB/LPN 1 After receiving the relevant information indication in the PUCCH channel feedback, the eNB/LPN 1 performs local CCA downlink detection on the U-Scell 1 immediately. If the CCA detects that the local U-Scell 1 resource is idle, the LPN 1 can immediately preempt the unlicensed channel resources on the U-Scell 1, and then perform PDCCH downlink scheduling and PDSCH data block transmission in the preempted COT time window. If the CCA detects that the local U-Scell 1 resource is not idle (for example, has been preempted by the LPN 3), the LPN 1 cannot seize the unlicensed channel resource on the U-Scell 1, and immediately passes the PDCCH control channel on the authorized carrier.
  • the command informs the UE that the UE immediately stops transmitting the local reserved occupation signal and releases the unlicensed carrier channel resource.
  • the expression bearer indicated by the command is a new control byte in the PDCCH corresponding to the downlink control information DCI of the U-Scell 1.
  • the UE 1 receives the relevant downlink scheduling on the PDCCH, the PDSCH data block is normally received on the U-Scell1 according to the current LTE technical mode; if the UE 1 receives the command on the PDCCH to stop sending the local reserved occupation signal If the indication is received, the unlicensed channel resources occupied by the local reservation on the U-Scell 1 are immediately released, and the process returns to S101 to report the local collision detection of the UE 1 in the next cycle.
  • the macro cell B on the carrier B of the operator B covers a number of unlicensed carrier micro-cells U-Scell1/2/3 with the same frequency point, and several Wifi AP nodes with the same frequency point.
  • the deployment is as shown in the figure. 20 is shown.
  • the LPN1/3 nodes to which U-Scell 1 and 3 belong can hear each other without a hidden relationship, and the LPN 2 node to which U-Scell 2 belongs is a hidden node of the LPN 1/3 node, which will cause strong interference to UE 2.
  • the eNB determines that the U-Scell 3 in the CA configuration of the UE 2 is in the U-UL/DL mode by the extensive scanning and monitoring detection of the target unlicensed band 5150MHz-5350MHz.
  • the working frequency range is selected as: 5260MHz-5280MHz. 20M bandwidth. According to the content of the embodiment of the present invention, although the U-Scell 3 is configured and activated, the eNB/LPN 3 does not actively perform downlink CCA detection and unlicensed channel resource preemption on the U-Scell 3.
  • UE2 also needs to locally send a reserved occupation signal to prevent the unlicensed channel resource of the receiver from being snatched by the LPN 1 and the surrounding Wifi AP node.
  • the expression bearer of the collision-free indication is a new control byte defined in the UCI in the PUCCH.
  • the UE 2 does not attempt to transmit the uplink PUSCH data block without the eNB/LPN 3 uplink scheduling information control on the U-Scell 3, so there is no need to uplink transmit the relevant MCS format/PRB resource block location information.
  • the eNB/LPN 3 After receiving the relevant information indication in the PUCCH channel feedback, the eNB/LPN 3 immediately performs local CCA downlink detection on the U-Scell 3. If the CCA detects that the local U-Scell 3 resource is idle, the LPN 3 can immediately preempt the unlicensed channel resources on the U-Scell 3, and subsequently perform PDCCH downlink scheduling and PDSCH data block transmission in the preempted COT time window; There may also be PDCCH uplink scheduling and PUSCH data block reception.
  • the CCA detects that the local U-Scell 3 resource is not idle (for example, has been preempted by the LPN 1), the LPN 3 cannot preempt the unlicensed channel resource on the U-Scell 3, and immediately passes the PDCCH control channel command notification on the macro cell B.
  • UE 2 UE 2 immediately stops transmitting the local reserved occupation signal, and releases the unlicensed carrier channel resource.
  • the expression bearer indicated by the command is a new control byte in the PDCCH corresponding to the U-Scell 3 downlink control information DCI.
  • S203 If the UE 2 receives the downlink scheduling and/or the uplink scheduling of the PDCCH, the normal demodulation PDSCH data block is received on the U-Scell 3 according to the current LTE technical mode, and/or the PUSCH data block is sent; if the UE 2 receives On the PDCCH, the command indication for stopping the transmission of the local reserved occupation signal immediately releases the unlicensed channel resources occupied by the local reservation on the U-Scell 3, and returns to S201 to perform the UE 2 local collision detection and reporting of the next period.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • the embodiment of the present invention achieves the following technical effects: in the related art, the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB needs to reserve a local non-period during the conflict detection loopback.
  • the problem of wasted resources and packet delay caused by granting carrier channel resources is relatively large, avoiding unnecessary resource overhead and reducing packet scheduling delay.
  • the eNB determines whether the secondary serving cell of the eNB is idle, and then determines whether to use the unlicensed carrier resource occupied by the UE.
  • the technical solution that is, the eNB does not actively perform the process of determining whether the secondary serving cell of the eNB is idle, and adopts the technical solution to solve the related art, the eNB/UE needs to perform multiple collision detection and feedback loopback, and the eNB It is necessary to reserve a large amount of wasted resources and packet delay caused by occupying the local unlicensed carrier channel resources during the collision detection loopback, avoiding unnecessary resource overhead and reducing the packet scheduling delay.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明提供了一种非授权载波资源的使用方法及装置，其中，所述方法包括：基站(eNB)接收用户设备(UE)上报的指示信息，其中，所述指示信息用于指示所述UE本地的辅服务小区空闲；在所述指示信息的触发下，所述eNB检测所述eNB本地的辅服务小区是否空闲；所述eNB根据检测结果判定是否使用所述UE已经占用的非授权载波资源。采用本发明实施例提供的上述技术方案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间浪费地长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时，同时一定程度规避UE侧隐藏节点的强干扰破坏。

Description

非授权载波资源的使用方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种非授权载波资源的使用方法及装置。
背景技术
图1为第三代合作伙伴计划(3rd Generation Partnership Project，简称为3GPP)蜂窝移动家族制式中的长期演进系统(Long Term Evolution，简称为LTE)的系统架构示意图，包括：核心网侧的移动管理实体(Mobility Management Entity，简称为MME)，服务网关(Serving GateWay，简称为SGW)，无线接入网侧的用户设备或称为终端(User Equipment，简称为UE)和基站(eNode B，简称为eNB)，它们之间是Uu空中接口或称为空口，其中，S1接口是基站与分组核心网之间的接口，eNB和MME之间是S1控制平面接口(S1 for the control plane，简称为S1-MME)，eNB和SGW之间是S1用户面接口(S1-U接口)，MME和SGW之间是S11接口，X2接口是基站之间的互连接口，eNB之间是X2用户面接口(X2-User plane，简称为X2-U)和X2控制面接口(X2-Control plane，简称为X2-C)。
图2至图5为LTE系统中的UE和eNB、核心网(MME和SGW)间控制面及用户面的协议栈架构，以及eNB和eNB之间控制面和用户面的协议栈架构示意图，其中，S1接口是基站与分组核心网之间的接口，X2接口是基站之间的互连接口。媒体接入控制(Media Access Control，简称为MAC)层主要为上层逻辑信道提供数据传输和负责上下行无线资源的分配，完成混合自动重传请求(Hybrid Automatic Repeat Request,简称为HARQ)、调度(Scheduling)、优先级处理和复用解复用(Multiplexing，简称为MUX)等功能；物理层(Physical layer，简称为PHY)主要为传输信道来的数据包MAC协议数据单元(Protocol Data Unit，简称为PDU)提供物理层相关信号处理，传输手段和空口信号转换。另外Uu空口上层的协议无线链路控制(Radio Link Control，简称为RLC)层主要用于提供用户和控制数据的分段和重传服务；分组数据汇聚协议层(Packet Data Convergence Protocol，简称为PDCP)主要用于给无线资源控制(Radio Resource Control，简称为RRC)或用户面上层完成用户数据的传递；RRC层主要用于完成广播(Broadcast)、寻呼(Paging)、无线资源控制连接管理、无线承载控制、移动性功能、终端测量报告和控制等，上述内容在3GPP公开网站中均可查询到，其中，图2中的STCP为可扩展传输控制协议(Scalable TCP)的简称，GTP为通用分组无线业务隧道协议(General Packet Radio Service Tunnelling Protocol)的简称。
在LTE系统Rel-10版本之前，终端和基站只能在一个授权载波(Licensed Carrier)上配置的小区内进行上下行通讯，实现单授权载波上的数据收发，此时基站只给终端配置有一个服务小区。从LTE系统Rel-10版本开始，为了提升终端的峰值速率，动态协调和利用多个授权载波小区间的无线资源，终端和基站能在多个授权载波上配置的小区内进行上下行通讯，实现多授权载波上的数据收发，此时基站给终端配置有多个服务小区：其中一个主服务小区 (Primary Cell，简称为Pcell)(唯一承担PUCCH信道反馈的服务小区)+多个辅服务小区(Secondary Cell，简称为Scell)(至少有PDSCH/PUSCH信道数据传输的服务小区)。这就是LTE载波聚合技术(Carrier Aggregation，简称为CA)，目前暂时限于对授权载波的聚合，且终端最大支持5个授权载波的聚合，最大聚合带宽为5x 20M＝100M。
由于LTE系统授权频段内的授权载波资源相对匮乏(需要各家运营商去竞标购买)，且宏基站(Macro eNB)下宏小区同构部署组网已经不能满足日益增加的LTE用户大业务流量的需求，因此LTE运营商希望开发和利用非授权频段内的非授权载波(Unlicensed Carrier)资源(不需要各家运营商去竞标购买，多个运营商可以自由地竞争抢占和使用)，并且采用微基站(Micro eNB)或者低功率基站节点(Low Power Node，简称为LPN)下的微小区异构部署组网来进行业务热点的覆盖，比如人口流量密集的区域。图6为两个上下行无线覆盖大致相同，分别处于同授权频段内两个相邻的不同授权载波上的宏小区配置成CA操作的示意图，UE在有效覆盖范围内，能同时和两个授权载波上的宏小区进行上下行通讯，实现双授权载波上的数据收发。而图7则在图6的基础之上，又增加了两个LPN微小区，它们分别处于非授权频段内两个不同的非授权载波上，且通过地面光纤协同和图6中的两个宏小区保持时序关系的同步；两个授权载波上的宏小区+两个非授权载波上的微小区，理论上也能共同配置成CA的操作，UE在其有效覆盖范围内，能同时和两个授权载波上的宏小区+两个非授权载波上的微小区进行上下行通讯，实现多载波上的数据收发。
图8是LTE纯授权载波聚合的工作架构，在eNB或者UE作为发送端的时候，MAC协议实体中配置有N个并行的HARQ实体，在特定传输时间间隔(Transmission Time Interval，简称为TTI)下产生的N个HARQ数据包(或称为MAC PDU)，经过物理层PHY实体的一系列相关处理(例如：信道编码，调制，资源块适配映射等)，最后转化为LTE特定的物理波形信号，在N个授权载波上发送出去；作为接收端的UE或者eNB通过MAC/PHY实体进行相反的处理。这里唯一的主服务小区Pcell和N-1个辅服务小区Scell都是配置在授权载波之上的。
图9是有LTE非授权载波聚合的工作架构，在eNB或者UE作为发送端的时候，MAC协议实体中配置有N个并行的HARQ实体，但是其中某些是服务授权载波的传统HARQ实体(同图8中的HARQ实体)，而另外一些是服务非授权载波的U-HARQ实体(需要对传统HARQ实体针对非授权载波的特性进行改造和增强)；产生的N个HARQ数据包(或者MAC PDU)，经过物理层PHY实体的一系列相关处理(例如：信道编码，调制，资源块适配映射等)，最后转化为LTE特定的物理波形信号，其中某些是在授权载波上发送出去的，而另外一些是在非授权载波上发送出去的，同样这里也做了PHY和U-PHY实体的区分，以标识和传统PHY实体的不同。这里仍然有唯一的授权载波上的主服务小区Pcell和若干个授权载波上的辅服务小区Scell，而同时还有若干个非授权载波上的辅服务小区U-Scell。
由于在某个物理局部区域，非授权载波上的资源被多个同运营商/异运营商的多个基站/无线接入点(eNBs/WIFI AP)节点所随机共享，因此每个eNB都要通过通话前监听(Listen BeforeTalk，简称为LBT)的方式来先监听检测信道的忙闲，再尝试抢占非授权载波上的信道资源。 比如：在同一片服务区域，运营商A的eNB1为自己的用户UE1配置了CA：Pcell1+U-Scell；运营商B的eNB2为自己的用户UE2配置了CA：Pcell2+U-Scell；Pcell1和Pcell2分别处于运营商A/B各自的授权载波上，彼此之间没有干扰冲突和信道资源共享的问题；但是U-Scell却处于相同的非授权载波上，此时每当运营商A/B各自的eNB想在U-Scell上发送数据，必须要先监听检测该非授权载波是否被其它节点eNB/WIFI AP/UE等所占用。比如eNB1在某周期时刻执行信道状态评估(Clear Channel Assessment，简称为CCA)检测出来的该非授权载波全带宽上的接收能量大于某个门限，则表示此时它已经被占用，eNB1此刻不能再去抢占该非授权载波上的信道资源，否则会对其他节点造成强干扰。之后通常eNB1在时间上回退一段时间，等下一个特定时刻，再执行下一轮的CCA检测，再尝试抢占该非授权载波上的资源。当eNB1执行CCA检测出来的该非授权载波全带宽上的接收能量小于某个门限，则表示此时它空闲，eNB1可以单独占用一段时间信道占用时间(Channel Occupancy Time，简称为COT)进行类似授权载波上的物理下行控制信道(Physical Downlink Control Channel，简称为PDCCH)上下行调度和物理下行共享信道(Physical Downlink Shared Channel，简称为PDSCH)数据块发送或上行物理共享信道(Physical Uplink Shared Channel，简称为PUSCH)数据块接收，之后释放掉它占用的非授权载波信道资源。
在同一局部区域同/异运营商多个eNBs/WIFI APs UEs等节点复杂共存的无线环境下，eNB即使能够成功抢占到它本地的非授权载波信道资源，执行下行数据块调度，也不意味着UE一定能够可靠地接收；因为接收方UE周围可能存在一些隐藏节点，这些隐藏节点可能无法感知发送方eNB的某种预留占用信号(它们对本地周边环境做CCA检测的结果也是空闲)，这些隐藏节点的各类发射信号在发送方eNB侧也无法被强烈感知，但却会对接收方UE产生了强烈的接收冲突干扰，UE几乎无法正确解调来自服务eNB的数据块；如图10所示，eNB在成功抢占到非授权载波信道资源，发送PDCCH下行调度和PDSCH数据块之后，UE侧由于存在隐藏节点的强干扰(图10中椭圆形所示部分)，UE无法正确接收解调该PDSCH数据块，于是在特定时序关系后通过授权载波上的PUCCH信道反馈接收解调失败NACK。因此为了获得成功率较高的下行数据块传输，比较保险地做法是：发送方eNB侧成功抢占到它本地的非授权载波信道资源的同时，接收方UE也能够抢占并且占用它本地的非授权载波信道资源，形成发送接收双侧的资源保护。同理为了获得成功率较高的上行数据块传输，比较保险地做法是：发送方UE侧成功抢占到它本地的非授权载波信道资源的同时，接收方eNB也要能一直占用它本地的非授权载波信道资源(仍然通过本地发送某种预留占用信号去实现，如图11所示，)。根据现有公开技术手段，以下行传输为例，为了规避UE侧隐藏节点潜在的强干扰破坏，eNB可以在正式下行调度数据块之前先发送某种冲突检测命令(DL collision Probe)或者其它类似预调度目的辅助信号，UE接收到该检测命令之后便开始对本地无线环境进行CCA检测，直到CCA检测到UE本地的非授权载波信道资源空闲，之后UE可以上行反馈给eNB告知：UE侧已经做好了可靠接收下行数据块的准备。之后eNB确定了UE侧没有隐藏节点的强干扰破坏之后，才开始进行正常的下行调度和数据块发送。上述协调方式要求eNB/UE每次正式数据包传输之前都需要做一次或者多次提前冲突检测和反馈回环，并且发送方eNB需要在冲突检测回环期间无为浪费地长期预留占用着本地的非授权载波信道资源(为了防止发送方eNB非授权信道资源被其他竞争节点抢走)，相对而言此种方式伴随的控制信令和资源开销浪费和 数据包调度延时都较大。
针对相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，尚未提出有效的解决方案。
发明内容
为了解决上述技术问题，本发明提供了一种非授权载波资源的使用方法及装置。
根据本发明实施例的一个方面，提供了一种非授权载波资源的使用方法，包括：eNB接收UE上报的指示信息，其中，所述指示信息用于指示所述UE本地的辅服务小区空闲；在所述指示信息的触发下，所述eNB检测所述eNB本地的辅服务小区是否空闲；所述eNB根据检测结果判定是否使用所述UE已经占用的非授权载波资源。
优选地，eNB接收UE上报的指示信息，包括：eNB接收UE上报的指定PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或eNB接收UE上报的信道状态信息(Channel State Information，简称为CSI)，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或eNB接收UE上报的所述UE的辅服务小区下行伪数据块的伪ACK序列，其中，伪ACK序列携带有所述指示信息。
优选地，eNB接收UE上报的指定PUCCH资源信息，包括：eNB接收UE上报的上行控制信息(Uplink Control Information，简称为UCI)，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
优选地，所述eNB根据检测结果判定是否使用所述UE已经占用的非授权载波资源，包括：在所述检测结果指示eNB本地的辅服务小区空闲时，判定所述UE继续占用所述非授权载波资源；在所述检测结果指示eNB本地的辅服务小区不空闲时，判定所述UE释放之前占用的所述非授权载波资源。
优选地，判定所述UE释放之前占用的所述非授权载波资源之后，还包括：所述eNB将携带有专用控制域字节的下行控制信息(Downlink Control Information，简称为DCI)发送至所述UE，其中，所述UE在携带有所述专用控制域字节的DCI的指示下，释放之前占用的所述非授权载波资源。
根据本发明实施例的另一个方面，还提供了一种非授权载波资源的使用方法，包括：在用户设备UE本地的辅服务小区空闲时，所述UE将所述UE本地的辅服务小区空闲的指示信息发送至演进型基站eNB；在所述eNB根据所述指示信息判定是否使用所述UE占用的非授权载波资源后，所述UE接收所述eNB下发的控制信息，其中，所述控制信息用于控制所述UE是否使用所述UE已经占用的非授权载波资源。
优选地，所述UE将所述指示信息发送至演进型基站eNB，包括：所述UE向所述eNB发送指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述 指示信息；和/或所述UE向所述eNB发送信道状态信息CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或所述UE向所述eNB发送所述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
优选地，所述UE向所述eNB发送指定PUCCH资源信息，包括：所述UE向所述eNB发送UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
优选地，在所述UE将所述UE本地的辅服务小区空闲的指示信息发送至所述eNB时，所述方法还包括：所述UE同时发送预留占用信号，其中，所述预留占用信号表示所述UE当前正在占用所述非授权载波资源。
优选地，所述方法还包括：所述UE在所述UE本地的辅服务小区发送无eNB上行调度信息控制的PUSCH数据块，其中，用于所述eNB解调所述PUSCH数据块的解调信息通过授权载波的物理上行控制信道PUCCH反馈至所述eNB。
根据本发明实施例的另一个方面，还提供了一种非授权载波资源的使用装置，应用于演进型基站eNB，包括：接收模块，设置为接收用户设备UE上报的指示信息，其中，所述指示信息用于指示所述UE本地的辅服务小区空闲；检测模块，设置为在所述指示信息的触发下，检测所述eNB本地的辅服务小区是否空闲；判定模块，设置为根据检测结果判定是否使用所述UE已经占用的非授权载波资源。
优选地，所述接收模块，还设置为接收UE上报的指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或接收UE上报的信道状态信息CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或接收UE上报的所述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
优选地，所述接收模块还设置为接收UE上报的UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
优选地，所述判定模块，包括：第一判定单元，设置为在所述检测结果指示eNB本地的辅服务小区空闲时，判定所述UE继续占用所述非授权载波资源；第二判定单元，设置为在所述检测结果指示eNB本地的辅服务小区不空闲时，判定所述UE释放占用的所述非授权载波资源。
优选地，所述第二判定单元，包括：发送子单元，设置为将携带有专用控制域字节的DCI发送至所述UE，其中，所述UE在携带有所述专用控制域字节的DCI的指示下，释放之前占用的所述非授权载波资源。
根据本发明实施例的另一个方面，还提供了一种非授权载波资源的使用装置，应用于用户设备UE，包括：发送模块，设置为在UE本地的辅服务小区空闲时，将所述UE本地的辅服务小区空闲的指示信息发送至演进型基站eNB；接收模块，设置为在所述eNB根据所述指示信息判定是否使用所述UE占用的非授权载波资源后，接收所述eNB下发的控制信息，其 中，所述控制信息用于控制所述UE是否使用所述UE已经占用的非授权载波资源。
优选地，所述发送模块，设置为向所述eNB发送指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或向所述eNB发送CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或向所述eNB发送所述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
优选地，所述发送模块，还设置为向所述eNB发送UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
通过本发明实施例，采用eNB在UE主动上报UE本地的辅服务小区空闲时，再判断eNB本地的辅服务小区是否空闲，进而判定是否使用UE占用的非授权载波资源的技术方案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间无为浪费地长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时，同时一定程度规避UE侧隐藏节点的强干扰破坏。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是相关技术中LTE的系统架构示意图；
图2是相关技术中LTE Uu/S1接口控制面架构示意图；
图3是相关技术中LTE Uu/S1接口用户面架构示意图；
图4是相关技术中LTE X2接口控制面架构示意图；
图5是相关技术中LTE X2接口用户面架构示意图；
图6是相关技术中TE授权载波聚合示意图；
图7是相关技术中LTE非授权载波聚合示意图；
图8是相关技术中LTE纯授权载波聚合的工作架构示意图；
图9是相关技术中LTE有非授权载波聚合的工作架构示意图；
图10是相关技术中下行调度和发送成功，接收冲突失败示意图；
图11是相关技术中下行调度和发送，接收方资源保护示意图；
图12为根据本发明实施例的非授权载波资源的使用方法的流程图；
图13为根据本发明实施例的非授权载波资源的使用装置的结构框图；
图14为根据本发明实施例的非授权载波资源的使用装置的再一结构框图；
图15为根据本发明实施例的非授权载波资源的使用方法的另一流程图；
图16为根据本发明实施例的eNB CCA成功示意图；
图17为根据本发明实施例的eNB CCA失败示意图；
图18为根据本发明实施例的非授权载波资源的使用装置的另一结构框图；
图19为根据本发明优选实施例1的非授权载波资源的使用系统的示意图；
图20为根据本发明优选实施例2的非授权载波资源的使用系统的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。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组合。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
为了解决上述技术问题，在本实施例中提供了一种非授权载波资源的使用方法，图12为根据本发明实施例的非授权载波资源的使用方法的流程图，如图12所示，包括以下步骤：
步骤S1202，eNB接收UE上报的指示信息，其中，上述指示信息用于指示上述UE本地的辅服务小区空闲；
步骤S1204，在上述指示信息的触发下，上述eNB检测上述eNB本地的辅服务小区是否空闲；
步骤S1206，上述eNB根据检测结果判定是否使用上述UE占用的非授权载波资源。
通过上述各个步骤，eNB在UE主动上报UE本地的辅服务小区空闲时，再判断eNB本地的辅服务小区是否空闲，进而判定是否使用UE占用的非授权载波资源的技术方案，即eNB并不主动执行判断eNB本地的辅服务小区是否空闲的过程，而采用这样的技术方案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题， 避免了不必要的资源开销，也降低了数据包调度延时。
需要说明的是，在本发明实施例中，步骤S1206技术方案的实现，除了根据检测结果以外，还可以根据其他eNB内部信息，如调度策略，待发数据缓存量等来判定是否使用UE占用的非授权载波资源。
对于步骤S1202中eNB接收UE上报的指示信息的技术方案，可以有多种实现方式，在本发明实施例中，可以通过以下技术方案实现，(1)eNB接收UE上报的指定PUCCH资源信息，其中，上述指定PUCCH资源信息携带有上述指示信息；(2)eNB接收UE上报的信道状态信息CSI，其中，在上述CSI为预先设定的值时，将上述预先设定的值作为上述指示信息；(3)eNB接收UE上报的上述UE的辅服务小区下行伪数据块的伪ACK序列，其中，伪ACK序列携带有上述指示信息，上述(1)-(3)的技术方案可以单独使用，也可以根据实际情况结合使用，本发明实施例对此不作限定，其中，上述情况(1)可以通过以下方案实现：eNB接收UE上报的UCI，其中，UCI的指定控制域字节携带有上述指示信息。
在本发明实施例的一个可选示例中，步骤S1206的技术方案可以通过以下步骤实现：在上述检测结果指示eNB本地的辅服务小区空闲时，判定上述UE继续占用上述非授权载波资源；在上述检测结果指示eNB本地的辅服务小区不空闲时，判定上述UE释放之前占用的上述非授权载波资源，其中，判定上述UE释放占用的上述非授权载波资源之后，还包括：上述eNB将携带有专用控制域字节的DCI发送至上述UE，其中，上述UE在上述DCI的指示下，释放之前占用的上述非授权载波资源，即在DCI中可以设置一个新的控制域字节(相当于上述实施例的专用控制域字节)来指示释放UE之前占用的非授权载波资源。
在本实施例中还提供了一种非授权载波资源的使用装置，应用于演进型基站eNB，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述，下面对该装置中涉及到的模块进行说明。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。图13为根据本发明实施例的非授权载波资源的使用装置的结构框图，包括：
接收模块130，设置为接收用户设备UE上报的指示信息，其中，上述指示信息用于指示上述UE本地的辅服务小区空闲；
检测模块132，与接收模块130连接，设置为在上述指示信息的触发下，检测上述eNB本地的辅服务小区是否空闲；
判定模块134，与检测模块132连接，设置为根据检测结果判定是否使用上述UE占用的非授权载波资源。
通过上述各个模块的综合使用，eNB在UE主动上报UE本地的辅服务小区空闲时，再判断eNB本地的辅服务小区是否空闲，进而判定是否使用UE占用的非授权载波资源的技术方案，即eNB并不主动执行判断eNB本地的辅服务小区是否空闲的过程，而采用这样的技术方 案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时。
其中，接收模块130还设置为接收UE上报的指定PUCCH资源信息，其中，上述指定PUCCH资源信息携带有上述指示信息；和/或接收UE上报的CSI，其中，在上述CSI为预先设定的值时，将上述预先设定的值作为上述指示信息；和/或接收UE上报的上述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有上述指示信息，在本发明实施例的可选示例中，接收模块130还设置为接收UE上报的UCI，其中，上述UCI包括专用于携带上述指示信息的控制域字节。
可选地，图14为根据本发明实施例的非授权载波资源的使用装置的再一结构框图，如图14所示，判定模块134，可以包括：第一判定单元1340，设置为在上述检测结果指示eNB本地的辅服务小区空闲时，判定上述UE继续占用上述非授权载波资源；第二判定单元1342，设置为在上述检测结果指示eNB本地的辅服务小区不空闲时，判定上述UE释放占用的上述非授权载波资源。
需要说明的是，第二判定单元1342，包括：发送子单元13420，设置为将携带有专用控制域字节的下行控制信息DCI发送至上述UE，其中，上述UE在上述DCI的指示下，释放占用的上述非授权载波资源。
为了完善上述技术方案的实现过程，在本发明实施例中，还提供了一种非授权载波资源的使用方法，图15为根据本发明实施例的非授权载波资源的使用方法的另一流程图，如图15所示，包括以下步骤：
步骤S1502，在用户设备UE本地的辅服务小区空闲时，上述UE将上述UE本地的辅服务小区空闲的指示信息发送至演进型基站eNB；
步骤S1504，在上述eNB根据上述指示信息判定是否使用上述UE占用的非授权载波资源后，上述UE接收上述eNB下发的控制信息，其中，上述控制信息用于控制上述UE是否使用上述UE占用的非授权载波资源。
通过上述各个步骤，UE主动上报UE本地的辅服务小区空闲时，并在eNB检测eNB本地的辅服务小区是否空闲的情况后，根据eNB下发的检测结果判定是否使用UE占用的非授权载波资源的技术方案，即eNB并不主动执行判断eNB本地的辅服务小区是否空闲的过程，而采用这样的技术方案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时。
可选地，步骤S1502的技术方案，可以考虑从以下几个方面实现：(1)上述UE向上述eNB发送指定PUCCH资源信息，其中，上述指定PUCCH资源信息携带有上述指示信息，其中，在本发明实施例的一个可选示例中，上述UE向上述eNB发送上行控制信息UCI，其中， 上述UCI的指定控制域字节携带有上述指示信息；(2)上述UE向上述eNB发送CSI，其中，在上述CSI为预先设定的值时，将上述预先设定的值作为上述指示信息；(3)上述UE向上述eNB发送上述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有上述指示信息，上述(1)-(3)仅仅作为本发明实施例的可选示例，并且，上述(1)-(3)可以单独使用，也可以根据实际情况结合使用。
需要说明的是，在UE将上述UE本地的辅服务小区空闲的指示信息发送至上述eNB时，上述UE同时发送预留占用信号，其中，上述预留占用信号表示上述UE当前正在占用上述非授权载波资源，避免其他终端或节点占用上述非授权载波资源。
本发明实施例还提供了以下技术方案：UE在上述UE本地的辅服务小区发送无eNB上行调度信息控制的PUSCH数据块，其中，用于上述eNB解调上述PUSCH数据块的解调信息通过授权载波的PUCCH反馈至上述eNB。
以下结合两个示例来解释上述非授权载波资源的使用过程，但其并不用于限定本发明实施例。
步骤S0：初始化前提，该步骤是两个示例都需要完成的步骤，即eNB和UE都具备对非授权载波进行CA的能力。eNB通过前期对目标非授权频段的广泛扫描和监听检测，能给出自己服务的特定UE某种LTE有非授权载波聚合的配置，即至少有一个授权载波上的Pcell(相当于上述实施例的主服务小区)和一个或N个的非授权载波小区U-Scell(i)(相当于上述实施例的辅服务小区)，其中i为非授权载波的索引号，后续为了简化相关说明，假设只有一个非授权载波小区的情况，即去除索引i。下面将分两种基本配置解释流程，1：U-Scell是个纯下行的频分双工方式(Frequency Division Duplex，简称为FDD)帧格式小区,即未许可的下行补充(Unlicensed-Supplementary Downlink，简称为U-SDL)工作模式情况；2：U-Scell是个有上下行的时分双工(Time Division Duplex，简称为TDD)帧格式小区,即未许可的上下行(Unlicensed-Uplink Downlink，简称为U-UL/DL)工作模式情况。
其中，对于U-SDL工作模式情况：
S1：对于特定UE，即使eNB还没有在U-Scell上进行下行CCA检测和非授权信道资源抢占，即使还没有对它进行下行数据块调度(如授权载波上的PDCCH信道还没有对此UE关于U-Scell的下行调度信息)，UE也需要在U-Scell上周期性地执行本地CCA检测。当在某时刻CCA检测到本地U-Scell空闲，便通过授权载波上的PUCCH信道反馈给eNB，通知eNB：UE接收方目前无冲突，已经做好了接收下行数据块的准备；发送方eNB若有下行数据，可进行调度发送。同时UE还需要本地发送预留占用信号，防止接收方的非授权信道资源被其它节点抢走。
S2：eNB接收到PUCCH信道反馈内的相关信息指示后，立刻在U-Scell上执行本地CCA下行检测。如果CCA检测到本地U-Scell资源空闲，eNB可以立刻抢占到该U-Scell上的非授权信道资源，后续在抢占到的COT时间窗内，进行PDCCH下行调度和PDSCH数据块发送，如附图16所示。如果CCA检测到本地U-Scell资源不空闲，eNB无法抢占U-Scell上的非授 权信道资源，便立刻通过授权载波上的PDCCH控制信道命令通知UE：UE立刻停止发送本地预留占用信号，释放非授权载波信道资源，如附图17所示。
S3：如果UE接收到PDCCH上的相关下行调度，则按照当前LTE技术方式去正常接收解调PDSCH数据块；如果UE接收到PDCCH上关于停止发送本地预留占用信号的命令指示，则立刻释放掉U-Scell上本地预留占用的非授权信道资源，回到S1，进行下一周期的UE侧本地冲突检测上报。
下面进一步说明上述流程：
根据当前LTE PUCCH反馈机制，eNB提前为UE配置好PUCCH信道的资源(一系列特定的物理资源块(Physical Resource Block，简称为PRB))，而UE必须根据从发送方eNB接收解调到的导频/干扰/下行数据块来确定PUCCH信道内填写/承载的内容，如下行数据块解调正确是否ACK/NACK,CSI和Pcell和U-Scell下行数据发送相关的PUCCH反馈信息各自对应着PUCCH信道资源中的一部分，通过特定物理层编码方式映射到特定PRB资源块上。
由于U-Scell和Pcell不能总是同步地进行下行调度和数据块发送(依赖U-Scell上非授权信道资源抢占的结果)，因此和U-Scell下行数据发送相关的PUCCH反馈信息不总是存在(可能没有U-Scell下行对应的ACK/NACK和CSI信息)，因此对应的那部分PUCCH信道资源可以被利用，用来反馈UE侧其它一些辅助信息。本发明实施例允许UE利用上述闲置的PUCCH信道资源部分，反馈UE侧无冲突指示。PUCCH信道上反馈给eNB的无冲突指示可以通过引入新的控制字节域来表达，也可以借用当前LTE技术已有的信道状态信息CSI来表达，比如可以用一个特定的CSI值来表示UE接收方无冲突，基于此特定CSI值，eNB侧才能开始尝试在U-Scell上进行CAA和下行非授权信道资源抢占，否则不主动去抢占。PUCCH信道资源的现有映射方式和发送方式不因为本发明实施例新内容而改变，只是改变了其中某些字节域的承载含义。
PUCCH信道上反馈给eNB的无冲突指示也可以借用当前LTE技术已有的ACK/NACK信息来表达，比如可以用U-Scell对应的伪ACK序列(实际eNB在U-Scell上还没有对该UE进行下行数据包的调度发送，因此本来不应该有ACK/NACK信息)来表示UE接收方无冲突，基于此伪ACK序列，eNB侧才开始尝试在U-Scell上进行CCA和下行非授权信道资源抢占，否则不主动去抢占。
根据当前LTE跨载波调度机制，eNB提前为UE配置好PDCCH控制信道资源(一系列特定的PRB)，而eNB必须根据自己的资源调度信息来确定PDCCH信道内填写/承载的内容，如DCI，PRB资源位置信息，调度编码策略信息MCS,Modulation Coding Scheme；和Pcell和U-Scell下行数据发送相关的PDCCH控制信息各自对应着PDCCH信道资源中的一部分，通过特定物理层编码方式映射到PRB资源块上。
由于U-Scell和Pcell不能总是同步进行下行调度和数据块发送(依赖U-Scell上非授权信道资源抢占的结果)，因此和U-Scell下行数据发送相关的PDCCH控制信息不总是存在，因此对应的那部分PDCCH信道资源可以被利用，用来发送eNB侧其它含义的控制信息。PDCCH 信道资源的现有映射方式和发送方式不因为本发明实施例新内容而改变，只是改变了其中某些字节域的承载含义。
本发明实施例允许eNB利用上述闲置的PDCCH信道资源部分，用来发送命令UE停止发送本地预留占用信号的指示。PDCCH上关于UE停止发送本地预留占用信号的指示可以通过引入新的控制字节域来表达，也可以借用当前LTE技术已有的调度编码策略信息(Modulation Coding Scheme，简称为MCS)来表达，比如可以用一个特定的MCS值来表示eNB发送方有冲突，基于此特定MCS值，UE侧能知道eNB侧短时间内一直处于冲突状态，需要及时释放掉本地预留占用的非授权信道资源。
本发明实施例的实施达到了以下技术效果：发送方eNB在不了解接收方UE侧有无冲突的前提下，不能主动去做U-Scell上的CCA检测和下行非授权信道资源的抢占；必须在接收到至少一个UE上报的无冲突指示后，被触发着去做U-Scell上CCA检测和下行非授权信道资源的抢占。也就是说只有在保证至少有一个UE接收方在U-Scell上无冲突的情况下，发送方eNB的CCA检测和非授权信道资源抢占才有意义；或者可选地，eNB在了解到哪些多个UEs作为接收方在U-Scell上无冲突，才能更优选择地对多UEs进行下行调度；否则即使eNB抢占到U-Scell下行资源，由于它服务的所有UE侧都有接收冲突，也不能可靠有效地进行下行数据块发送。本发明实施例内容引入的相关新控制信息都是利用了eNB已经为UE配置的PDCCH/PUCCH信道上特定的闲置PRB资源块，不会带来太多额外的资源开销。
2：U-UL/DL工作模式情况。
DL的方式方法同上面情况1，只是eNB做下行CCA检测和资源抢占受限在TDD DL子帧相关的位置；UL对应UE做上行CCA检测和资源抢占，只是受限在TDD UL子帧相关的位置，下面将详细描述：
S1：对于特定UE，即使接收方eNB还没有在U-Scell上对它进行上行数据块调度(如授权载波上的PDCCH信道还没有对此UE关于U-Scell的上行调度信息)，发送方UE也需要在U-Scell上周期性地执行本地CCA检测。当在某时刻CCA检测到本地U-Scell空闲，便通过授权载波上的PUCCH信道反馈给eNB，通知eNB：UE作为接收方目前无冲突，做好了接收下行数据块的准备；UE作为发送方目前无冲突，也做好了发送上行数据块的准备。同时UE还需要发送本地预留占用信号，防止本地非授权信道资源被其它节点抢走；可选地，UE还可以在U-Scell上尝试发送无eNB上行调度信息控制的上行PUSCH数据块，该上行数据块相关的MCS格式/PRB资源块位置信息(用于接收方eNB侧解调)也通过授权载波上的PUCCH信道反馈给eNB。
S2：eNB接收到PUCCH信道反馈后，立刻在U-Scell上执行本地CCA检测。如果CCA检测到本地U-Scell资源空闲，eNB可以立刻抢占到该U-Scell上的非授权信道资源，后续在抢占到的COT时间窗内，进行PDCCH下行调度和PDSCH数据块的发送，同时还可以有PDCCH上行调度和PUSCH数据块接收。如果UE已经在U-Scell上尝试发送了无eNB上行调度信息控制的上行PUSCH数据块，eNB便按照PUCCH信道反馈的相关MCS格式/PRB资 源块位置信息对它进行解调。如果CCA检测到本地U-Scell资源不空闲，eNB无法抢占U-Scell上的非授权信道资源，便立刻通过授权载波上的PDCCH控制命令通知UE：UE立刻停止发送本地预留占用信号，释放非授权载波信道资源。如果UE已经在U-Scell上尝试发送了无eNB上行调度信息控制的上行PUSCH数据块，eNB便对它丢弃不进行解调(可能已经被eNB本地的强干扰破坏)。
S3：如果UE接收到PDCCH的下行调度和/或上行调度，则按照当前LTE技术方式在U-Scell上去正常接收解调PDSCH数据块，和/或发送PUSCH数据块；如果UE接收到PDCCH上关于停止发送本地预留占用信号的命令指示，则立刻释放掉U-Scell上本地预留占用的非授权载波信道资源，并且不再尝试发送无eNB上行调度信息控制的上行PUSCH数据块，回到S1，进行下一周期的UE侧本地冲突检测上报。
UE允许在U-Scell上尝试发送无eNB上行调度信息控制的上行PUSCH数据块，该上行数据块相关的MCS格式/PRB资源块位置信息(用于接收方eNB解调)通过授权载波上的PUCCH信道反馈给eNB。也就意味着：发送方UE在接收方eNB对它正式进行上行调度之前，允许在U-Scell上先发送一些PUSCH数据块，而当eNB对UE正式进行PDCCH上行调度之后，UE完全按照eNB的上行调度信息进行PUSCH数据块的发送。
本发明实施例达到了以下技术效果：接收方eNB在不了解发送方UE有无冲突的前提下，不能主动去做U-Scell上的CCA检测和上行非授权信道资源的抢占；必须在接收到至少一个UE上报的无冲突指示后，被触发着去做U-Scell上CCA检测和上行非授权信道资源的抢占。也就是说只有在保证至少有一个UE发送方在U-Scell上无冲突的情况下，接收方eNB的CCA检测和非授权信道资源抢占才有意义；或者可选地，eNB了解到哪些多个UEs作为发送方在U-Scell上无冲突，才能更优选择地对多UEs进行上行调度；否则即使eNB抢占到U-Scell上行资源，由于它服务的所有UE在本地都有发送冲突，也不能可靠有效地进行上行数据块发送。本发明实施例内容引入的相关新控制信息都是利用了eNB已经为UE配置的PDCCH/PUCCH信道上特定的闲置PRB资源块，不会带来太多额外的资源开销。
在本实施例中还提供了一种非授权载波资源的使用装置，应用于UE，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述，下面对该装置中涉及到的模块进行说明。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。图18为根据本发明实施例的非授权载波资源的使用装置的又一结构框图，包括：
发送模块180，设置为在UE本地的辅服务小区空闲时，将上述UE本地的辅服务小区空闲的指示信息发送至演进型基站eNB；
接收模块182，与发送模块180连接，设置为在上述eNB根据上述指示信息判定是否使用上述UE占用的非授权载波资源后，接收上述eNB下发的控制信息，其中，上述控制信息用于控制上述UE是否使用上述UE占用的非授权载波资源。
通过上述各个模块的综合作用，UE主动上报UE本地的辅服务小区空闲时，并在eNB检 测eNB本地的辅服务小区是否空闲的情况后，根据eNB下发的检测结果判定是否使用UE占用的非授权载波资源的技术方案，即eNB并不主动执行判断eNB本地的辅服务小区是否空闲的过程，而采用这样的技术方案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时。
可选地，发送模块180，设置为向上述eNB发送指定物理上行控制信道PUCCH资源信，其中，上述指定PUCCH资源信息携带有上述指示信息；和/或向上述eNB发送CSI，其中，在上述CSI为预先设定的值时，将上述预先设定的值作为上述指示信息；和/或向上述eNB发送上述UE的辅服务小区下行伪数据块的伪ACK序列，其中，伪ACK序列携带有上述指示信息，其中，发送模块180，还设置为向上述eNB发送上行控制信息UCI，其中，上述UCI的指定控制域字节携带有上述指示信息。
以下结合两个优选实施例以及附图19-20详细说明上述非授权载波的使用流程：
优选实施例1
运营商A某授权载波上的宏小区A覆盖下有若干个同频点的非授权载波微小区U-Scell1/2/3，还有若干个同频点的Wifi AP节点，其部署如附图19所示。U-Scell 1和3所属的LPN1/3节点之间可以互相听见，无隐藏关系，而U-Scell 2所属的LPN 2节点为LPN 1/3节点的隐藏节点，会对UE 1产生强干扰。eNB通过前期对目标非授权频段5150MHz-5350MHz的广泛扫描和监听检测，决定给UE 1的CA配置中U-Scell 1为U-SDL工作模式，其工作频点范围选择为：5160MHz-5170MHz的10M带宽。根据本发明实施例的技术方案，尽管U-Scell 1被配置且激活，但是eNB/LPN 1不会主动在U-Scell 1上进行下行CCA检测和非授权信道资源抢占。
S101：对于UE 1，即使eNB/LPN 1还没有在U-Scell 1上进行下行CCA检测和非授权信道资源抢占，即使还没有对它进行下行数据块调度(如宏小区A上的PDCCH信道还没有对此UE 1关于U-Scell 1的下行调度信息)，UE 1也需要在U-Scell 1上周期性地执行本地CCA检测。当在某时刻CCA检测到本地U-Scell 1空闲，便通过宏小区A上的PUCCH信道反馈给eNB/LPN 1，通知eNB/LPN 1：UE 1接收方目前无冲突，已经做好了接收下行数据块的准备；发送方eNB/LPN 1若有下行数据，可进行调度发送。同时UE 1还需要本地发送预留占用信号，防止接收方的非授权信道资源被LPN 3和周边Wifi AP节点抢走。无冲突指示的表达承载方式为PUCCH内对应于U-Scell 1下行伪数据块的2个连续的伪ACK序列。
S102：eNB/LPN 1接收到PUCCH信道反馈内的相关信息指示后，立刻在U-Scell 1上执行本地CCA下行检测。如果CCA检测到本地U-Scell 1资源空闲，LPN 1可以立刻抢占到该U-Scell 1上的非授权信道资源，后续在抢占到的COT时间窗内，进行PDCCH下行调度和PDSCH数据块发送。如果CCA检测到本地U-Scell 1资源不空闲(比如已经被LPN 3所抢占)，LPN 1无法抢占U-Scell 1上的非授权信道资源，便立刻通过授权载波上的PDCCH控制信道 命令通知UE：UE立刻停止发送本地预留占用信号，释放非授权载波信道资源，该命令指示的表达承载方式为PDCCH内对应于U-Scell 1下行控制信息DCI内的某新控制字节。
S103：如果UE 1接收到PDCCH上的相关下行调度，则按照当前LTE技术方式在U-Scell1上去正常接收解调PDSCH数据块；如果UE 1接收到PDCCH上关于停止发送本地预留占用信号的命令指示，则立刻释放掉U-Scell 1上本地预留占用的非授权信道资源，回到S101，进行下一周期的UE 1本地冲突检测上报。
优选实施例2
运营商B某授权载波上的宏小区B覆盖下有若干个同频点的非授权载波微小区U-Scell1/2/3，还有若干个同频点的Wifi AP节点，其部署如附图20所示。U-Scell 1和3所属的LPN1/3节点之间可以互相听见，无隐藏关系，而U-Scell 2所属的LPN 2节点为LPN 1/3节点的隐藏节点，会对UE 2产生强干扰。eNB通过前期对目标非授权频段5150MHz-5350MHz的广泛扫描和监听检测，决定给UE 2的CA配置中U-Scell 3为U-UL/DL工作模式，其工作频点范围选择为：5260MHz-5280MHz的20M带宽。根据本发明实施例内容，尽管U-Scell 3被配置且激活，但是eNB/LPN 3不会主动在U-Scell 3上进行下行CCA检测和非授权信道资源抢占。
S201：对于UE 2，即使eNB/LPN 3还没有在U-Scell 3上进行下行CCA检测和非授权信道资源抢占，即使还没有对它进行下行数据块调度(如宏小区B上的PDCCH信道还没有对此UE 2于U-Scell 3的下行调度信息)，UE 2也需要在U-Scell 3上周期性地执行本地CCA检测。当在某时刻CCA检测到本地U-Scell 3空闲，便通过宏小区B上的PUCCH信道反馈给eNB/LPN 3，通知eNB/LPN 3：UE 2接收方目前无冲突，已经做好了接收下行数据块的准备；发送方eNB/LPN 3若有下行数据，可进行调度发送；同时UE 2作为发送方目前无冲突，也做好了发送上行数据块的准备，请接收方eNB/LPN 3做好上行数据调度和接收的准备。同时UE2还需要本地发送预留占用信号，防止接收方的非授权信道资源被LPN 1和周边Wifi AP节点抢走。无冲突指示的表达承载方式为PUCCH内UCI,定义的某新控制字节。此优选实施例2中UE 2没有在U-Scell 3上尝试发送无eNB/LPN 3上行调度信息控制的上行PUSCH数据块，因此无需上行发送相关的MCS格式/PRB资源块位置信息。
S202：eNB/LPN 3接收到PUCCH信道反馈内的相关信息指示后，立刻在U-Scell 3上执行本地CCA下行检测。如果CCA检测到本地U-Scell 3资源空闲，LPN 3可以立刻抢占到该U-Scell 3上的非授权信道资源，后续在抢占到的COT时间窗内，进行PDCCH下行调度和PDSCH数据块发送；同时还可以有PDCCH上行调度和PUSCH数据块接收。如果CCA检测到本地U-Scell 3资源不空闲(比如已经被LPN 1所抢占)，LPN 3无法抢占U-Scell 3上的非授权信道资源，便立刻通过宏小区B上的PDCCH控制信道命令通知UE 2：UE 2立刻停止发送本地预留占用信号，释放非授权载波信道资源，该命令指示的表达承载方式为PDCCH内对应于U-Scell 3下行控制信息DCI内的某新控制字节。
S203：如果UE 2接收到PDCCH的下行调度和/或上行调度，则按照当前LTE技术方式在U-Scell 3上去正常接收解调PDSCH数据块，和/或发送PUSCH数据块；如果UE 2接收到 PDCCH上关于停止发送本地预留占用信号的命令指示，则立刻释放掉U-Scell 3上本地预留占用的非授权信道资源，回到S201，进行下一周期的UE 2本地冲突检测上报。
在另外一个实施例中，还提供了一种软件，该软件用于执行上述实施例及优选实施方式中描述的技术方案。
在另外一个实施例中，还提供了一种存储介质，该存储介质中存储有上述软件，该存储介质包括但不限于：光盘、软盘、硬盘、可擦写存储器等。
综上所述，本发明实施例达到了以下技术效果：解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时。
工业实用性：通过上述描述可知，本发明实施例通过eNB在UE主动上报UE本地的辅服务小区空闲时，再判断eNB本地的辅服务小区是否空闲，进而判定是否使用UE占用的非授权载波资源的技术方案，即eNB并不主动执行判断eNB本地的辅服务小区是否空闲的过程，而采用这样的技术方案，解决了相关技术中，eNB/UE需要做多次冲突检测和反馈回环，以及eNB需要在冲突检测回环期间长期预留占用着本地的非授权载波信道资源而导致的浪费资源和数据包延迟都比较大的问题，避免了不必要的资源开销，也降低了数据包调度延时。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (18)

  1. 一种非授权载波资源的使用方法，包括：
    演进型基站eNB接收用户设备UE上报的指示信息，其中，所述指示信息用于指示所述UE本地的辅服务小区空闲；
    在所述指示信息的触发下，所述eNB检测所述eNB本地的辅服务小区是否空闲；
    所述eNB根据检测结果判定是否使用所述UE已经占用的非授权载波资源。
  2. 根据权利要求1所述的方法，其中，eNB接收UE上报的指示信息，包括：
    eNB接收UE上报的指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或
    eNB接收UE上报的信道状态信息CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或
    eNB接收UE上报的所述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
  3. 根据权利要求2所述的方法，其中，eNB接收UE上报的指定PUCCH资源信息，包括：
    eNB接收UE上报的上行控制信息UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
  4. 根据权利要求1所述的方法，其中，所述eNB根据检测结果判定是否使用所述UE已经占用的非授权载波资源，包括：
    在所述检测结果指示eNB本地的辅服务小区空闲时，判定所述UE继续占用所述非授权载波资源；
    在所述检测结果指示eNB本地的辅服务小区不空闲时，判定所述UE释放之前占用的所述非授权载波资源。
  5. 根据权利要求4所述的方法，其中，判定所述UE释放之前占用的所述非授权载波资源之后，还包括：
    所述eNB将携带有专用控制域字节的下行控制信息DCI发送至所述UE，其中，所述UE在携带有所述专用控制域字节的DCI的指示下，释放之前占用的所述非授权载波资源。
  6. 一种非授权载波资源的使用方法，包括：
    在用户设备UE本地的辅服务小区空闲时，所述UE将所述UE本地的辅服务小区空闲的指示信息发送至演进型基站eNB；
    在所述eNB根据所述指示信息判定是否使用所述UE占用的非授权载波资源后，所 述UE接收所述eNB下发的控制信息，其中，所述控制信息用于控制所述UE是否使用所述UE已经占用的非授权载波资源。
  7. 根据权利要求6所述的方法，其中，所述UE将所述指示信息发送至eNB，包括：
    所述UE向所述eNB发送指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或
    所述UE向所述eNB发送信道状态信息CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或
    所述UE向所述eNB发送所述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
  8. 根据权利要求7所述的方法，其中，所述UE向所述eNB发送指定PUCCH资源信息，包括：
    所述UE向所述eNB发送上行控制信息UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
  9. 根据权利要求6所述的方法，其中，在所述UE将所述UE本地的辅服务小区空闲的指示信息发送至所述eNB时，所述方法还包括：
    所述UE发送预留占用信号，其中，所述预留占用信号表示所述UE当前正在占用所述非授权载波资源。
  10. 根据权利要求6所述的方法，其中，所述方法还包括：
    所述UE在所述UE本地的辅服务小区发送无eNB上行调度信息控制的上行物理共享信道PUSCH数据块，其中，用于所述eNB解调所述PUSCH数据块的解调信息通过授权载波的PUCCH反馈至所述eNB。
  11. 一种非授权载波资源的使用装置，应用于演进型基站eNB，包括：
    接收模块，设置为接收用户设备UE上报的指示信息，其中，所述指示信息用于指示所述UE本地的辅服务小区空闲；
    检测模块，设置为在所述指示信息的触发下，检测所述eNB本地的辅服务小区是否空闲；
    判定模块，设置为根据检测结果判定是否使用所述UE已经占用的非授权载波资源。
  12. 根据权利要求11所述的装置，其中，所述接收模块，还设置为接收UE上报的指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或接收UE上报的信道状态信息CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或接收UE上报的所述UE的辅服务小区下行伪数据块 的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
  13. 根据权利要求12所述的装置，其中，所述接收模块还设置为接收UE上报的上行控制信息UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
  14. 根据权利要求11所述的装置，其中，所述判定模块，包括：
    第一判定单元，设置为在所述检测结果指示eNB本地的辅服务小区空闲时，判定所述UE继续占用所述非授权载波资源；
    第二判定单元，设置为在所述检测结果指示eNB本地的辅服务小区不空闲时，判定所述UE释放占用的所述非授权载波资源。
  15. 根据权利要求14所述的装置，其中，所述第二判定单元，包括：
    发送子单元，设置为将携带有专用控制域字节的下行控制信息DCI发送至所述UE，其中，所述UE在携带有所述专用控制域字节的DCI的指示下，释放之前占用的所述非授权载波资源。
  16. 一种非授权载波资源的使用装置，应用于用户设备UE，包括：
    发送模块，设置为在UE本地的辅服务小区空闲时，将所述UE本地的辅服务小区空闲的指示信息发送至演进型基站eNB；
    接收模块，设置为在所述eNB根据所述指示信息判定是否使用所述UE占用的非授权载波资源后，接收所述eNB下发的控制信息，其中，所述控制信息用于控制所述UE是否使用所述UE已经占用的非授权载波资源。
  17. 根据权利要求16所述的装置，其中，所述发送模块，设置为向所述eNB发送指定物理上行控制信道PUCCH资源信息，其中，所述指定PUCCH资源信息携带有所述指示信息；和/或向所述eNB发送信道状态信息CSI，其中，在所述CSI为预先设定的值时，将所述预先设定的值作为所述指示信息；和/或向所述eNB发送所述UE的辅服务小区下行伪数据块的伪确认字符ACK序列，其中，伪ACK序列携带有所述指示信息。
  18. 根据权利要求17所述的装置，其中，所述发送模块，还设置为向所述eNB发送上行控制信息UCI，其中，所述UCI包括专用于携带所述指示信息的控制域字节。
PCT/CN2015/088178 2015-01-27 2015-08-26 非授权载波资源的使用方法及装置 Ceased WO2016119454A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/546,902 US10425839B2 (en) 2015-01-27 2015-08-26 Methods and devices for using unlicensed carrier resource

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510041858.7 2015-01-27
CN201510041858.7A CN105992345A (zh) 2015-01-27 2015-01-27 非授权载波资源的使用方法及装置

Publications (1)

Publication Number Publication Date
WO2016119454A1 true WO2016119454A1 (zh) 2016-08-04

Family

ID=56542320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/088178 Ceased WO2016119454A1 (zh) 2015-01-27 2015-08-26 非授权载波资源的使用方法及装置

Country Status (3)

Country Link
US (1) US10425839B2 (zh)
CN (1) CN105992345A (zh)
WO (1) WO2016119454A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028272A1 (zh) * 2016-08-10 2018-02-15 深圳市金立通信设备有限公司 一种上行资源调度方法及相关设备
WO2018045678A1 (zh) * 2016-09-09 2018-03-15 宇龙计算机通信科技(深圳)有限公司 通信方法和通信装置
WO2018045681A1 (zh) * 2016-09-09 2018-03-15 宇龙计算机通信科技(深圳)有限公司 通信方法和通信装置
WO2020087329A1 (zh) * 2018-10-31 2020-05-07 北京小米移动软件有限公司 数据传输方法、装置、基站、终端及存储介质

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106605425B (zh) * 2015-01-30 2019-02-26 华为技术有限公司 一种基站能力的指示方法及装置
US10159108B2 (en) * 2015-04-10 2018-12-18 Motorola Mobility Llc DRX handling in LTE license assisted access operation
WO2017024468A1 (zh) * 2015-08-10 2017-02-16 华为技术有限公司 一种随机接入方法及装置
WO2017026406A1 (ja) * 2015-08-11 2017-02-16 京セラ株式会社 基地局及び無線端末
CN106454901A (zh) * 2016-11-04 2017-02-22 维沃移动通信有限公司 下行控制信道的检测方法、指示方法、终端及网络侧设备
CN108289335B (zh) * 2017-01-10 2023-07-14 中兴通讯股份有限公司 数据发送方法及装置、终端
CN109699084B (zh) * 2017-10-20 2021-11-09 维沃移动通信有限公司 非授权频段下的信息传输方法、终端及网络设备
EP3735065B1 (en) * 2017-12-29 2023-08-02 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Paging methods, network device and terminal device
CN109451818B (zh) * 2018-03-30 2024-09-03 北京小米移动软件有限公司 数据发送方法及装置
CN110380832A (zh) * 2018-04-12 2019-10-25 普天信息技术有限公司 下行控制信道pdcch信息发送方法、预测方法及其装置
CN118139200A (zh) * 2018-06-19 2024-06-04 交互数字专利控股公司 用于在非授权频谱中进行系统接入的方法、装置和系统
CN119652441A (zh) 2018-06-19 2025-03-18 交互数字专利控股公司 Wtru及其执行的方法
KR20210036373A (ko) * 2018-08-16 2021-04-02 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 정보 전송 방법, 단말기 디바이스 및 네트워크 디바이스
WO2020107409A1 (zh) * 2018-11-30 2020-06-04 Oppo广东移动通信有限公司 一种通信方法、终端设备和网络设备
CN111107637B (zh) 2019-03-25 2022-04-01 维沃移动通信有限公司 共享信道占用时间的方法和设备
KR20220030996A (ko) 2019-07-12 2022-03-11 삼성전자주식회사 통신 시스템에서 업링크 신호를 송신하는 방법 및 장치
CN112218380A (zh) * 2019-07-12 2021-01-12 北京三星通信技术研究有限公司 传输harq-ack的方法及设备
CN112399583A (zh) * 2019-08-16 2021-02-23 大唐移动通信设备有限公司 一种资源传输方法、终端和网络设备
CN111835458B (zh) * 2019-08-16 2023-12-15 维沃移动通信有限公司 一种信息传输、接收方法、终端及网络侧设备
US11792848B2 (en) 2019-10-04 2023-10-17 Huawei Technologies Co., Ltd. Methods and apparatuses for cot sharing in unlicensed spectrum
US12418913B2 (en) 2020-05-28 2025-09-16 Beijing Xiaomi Mobile Software Co., Ltd. Method for transmitting downlink data on physical downlink shared channel (PDSCH) resource according to occupancy signal
EP4054282B1 (en) * 2021-03-02 2025-08-27 Nokia Solutions and Networks Oy Preventing data outage for user equipment during e-utran new radio dual connectivity procedure
CN115942515A (zh) * 2022-03-18 2023-04-07 中兴通讯股份有限公司 物理边链路信道的发送方法、装置、存储介质及电子装置
WO2024060100A1 (en) * 2022-09-21 2024-03-28 Nec Corporation Method, device and computer readable medium for communications

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102256258A (zh) * 2010-05-19 2011-11-23 中国移动通信集团公司 载频资源的分配方法及载频资源的分配装置
CN103609162A (zh) * 2011-06-09 2014-02-26 高通股份有限公司 蜂窝小区_fach（前向接入信道）和蜂窝小区_dch（专用信道）状态背景中的测量调度
US20140071931A1 (en) * 2011-05-18 2014-03-13 Lg Electronics Inc. Method and device for transmitting control information in wireless communication system
WO2014186932A1 (en) * 2013-05-20 2014-11-27 Broadcom Corporation Method and apparatus for enhanced secondary cell activation and deactivation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370250B (zh) * 2007-08-16 2012-08-22 华为技术有限公司 终端接入认知系统的方法及装置
CN101815302B (zh) * 2010-01-07 2014-12-03 北京邮电大学 一种利用认知无线电网络中空闲信道的频谱接入方法
EP2564622B1 (en) * 2010-04-29 2019-09-04 InterDigital Patent Holdings, Inc. Using personal wireless devices for network testing
WO2011139058A2 (en) * 2010-05-04 2011-11-10 Samsung Electronics Co., Ltd. Method of control indication in multi-input multi-output communication systems
US9930677B2 (en) * 2010-12-07 2018-03-27 Sharp Kabushiki Kaisha Prioritizing multiple channel state information (CSI) reporting with carrier aggregation
CN102594493B (zh) * 2011-01-17 2014-08-20 华为技术有限公司 一种应答信息的编码、处理方法和装置
US9345007B2 (en) * 2011-04-04 2016-05-17 Lg Electronics Inc. Method for transmitting uplink control information in a wireless communication system and device for same
JP5990815B2 (ja) * 2011-11-07 2016-09-14 シャープ株式会社 基地局、端末、通信システムおよび通信方法
US9774436B2 (en) * 2014-01-30 2017-09-26 Intel IP Corporation Systems, methods and devices for selective interference coordination in a cellular protocol
CN105393621B (zh) * 2014-06-30 2019-10-01 华为技术有限公司 一种子帧处理方法及设备
KR102247085B1 (ko) * 2014-09-01 2021-04-30 삼성전자주식회사 비인가 주파수 대역을 사용하는 이동통신 시스템에서의 통신 기법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102256258A (zh) * 2010-05-19 2011-11-23 中国移动通信集团公司 载频资源的分配方法及载频资源的分配装置
US20140071931A1 (en) * 2011-05-18 2014-03-13 Lg Electronics Inc. Method and device for transmitting control information in wireless communication system
CN103609162A (zh) * 2011-06-09 2014-02-26 高通股份有限公司 蜂窝小区_fach（前向接入信道）和蜂窝小区_dch（专用信道）状态背景中的测量调度
WO2014186932A1 (en) * 2013-05-20 2014-11-27 Broadcom Corporation Method and apparatus for enhanced secondary cell activation and deactivation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028272A1 (zh) * 2016-08-10 2018-02-15 深圳市金立通信设备有限公司 一种上行资源调度方法及相关设备
WO2018045678A1 (zh) * 2016-09-09 2018-03-15 宇龙计算机通信科技(深圳)有限公司 通信方法和通信装置
WO2018045681A1 (zh) * 2016-09-09 2018-03-15 宇龙计算机通信科技(深圳)有限公司 通信方法和通信装置
US10735971B2 (en) 2016-09-09 2020-08-04 Yulong Computer Telecommunications Scientific (Shenzhen) Co., Ltd. Communication method and communication device
WO2020087329A1 (zh) * 2018-10-31 2020-05-07 北京小米移动软件有限公司 数据传输方法、装置、基站、终端及存储介质
US11943069B2 (en) 2018-10-31 2024-03-26 Beijing Xiaomi Mobile Software Co., Ltd. Data transmission method and device, base station, terminal and storage medium

Also Published As

Publication number Publication date
CN105992345A (zh) 2016-10-05
US10425839B2 (en) 2019-09-24
US20180035311A1 (en) 2018-02-01

Similar Documents

Publication Publication Date Title
WO2016119454A1 (zh) 非授权载波资源的使用方法及装置
CN115589596B (zh) 侧行通信的方法及装置
KR102033597B1 (ko) 이동통신 시스템에서 랜덤 액세스 절차를 수행하는 방법 및 장치
JP7186763B2 (ja) 無線通信システムにおいて複数の搬送波上でサイドリンク送信を行うための方法及び装置
KR20230127959A (ko) 비면허 대역을 통해 데이터를 송수신하는 수신 장치 및 송신 장치
US20220394560A1 (en) Method and apparatus for pre-empting a resource
US9936393B2 (en) Method of radio resource scheduling in unlicensed spectrum and related apparatuses using the same
CN112106401B (zh) 发送和接收寻呼和系统信息的系统和方法
CN111108800B (zh) 一种通信方法和装置
CN108604962B (zh) 用于共享射频频带中的上行链路信道的描述符信道设计
JP2022000989A (ja) サービス伝送方法及び装置
US12389377B2 (en) Partial sensing method and device for device-to-device communication in wireless communication system
CN107113077B (zh) 用于未授权频带中的上行链路传输方法及使用该方法的设备
WO2014176972A1 (zh) D2d通信中的数据发送方法和设备
JP2016519554A (ja) 無線通信システムにおけるランダムアクセス手順を実行するための方法及び装置
JP6878304B2 (ja) 端末、無線通信方法及び無線通信システム
JP6101486B2 (ja) バッファ状態報告の送信制御方法、ユーザ装置、および無線通信システム
WO2021244501A1 (zh) 通信方法及装置
JPWO2016163506A1 (ja) ユーザ端末、無線基地局及び無線通信方法
WO2018000196A1 (zh) 免授权频段上的通信方法、终端设备以及网络设备
JP2024503648A (ja) リソース選択方法、装置及びシステム
CN117561690A (zh) 用于侧行链路通信的增强重传
CN106301444A (zh) 射频处理设备及处理方法
TWI774988B (zh) 隨機接取程序技術
KR102528917B1 (ko) 다운링크 제어 정보를 송신하기 위한 방법 및 장치, 다운링크 제어 정보를 수신하기 위한 방법 및 장치, 및 통신 시스템

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15879652

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15879652

Country of ref document: EP

Kind code of ref document: A1