WO2016177093A1 - 上行载波选择方法、网络侧网元及用户设备、存储介质 - Google Patents

上行载波选择方法、网络侧网元及用户设备、存储介质 Download PDF

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Publication number
WO2016177093A1
WO2016177093A1 PCT/CN2016/076015 CN2016076015W WO2016177093A1 WO 2016177093 A1 WO2016177093 A1 WO 2016177093A1 CN 2016076015 W CN2016076015 W CN 2016076015W WO 2016177093 A1 WO2016177093 A1 WO 2016177093A1
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Prior art keywords
uplink
carriers
carrier
scheduled
unlicensed
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PCT/CN2016/076015
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English (en)
French (fr)
Inventor
徐汉青
赵亚军
莫林梅
Original Assignee
中兴通讯股份有限公司
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.)
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Priority to JP2018505007A priority Critical patent/JP6579559B2/ja
Priority to EP16789087.0A priority patent/EP3331295A4/en
Publication of WO2016177093A1 publication Critical patent/WO2016177093A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers

Definitions

  • the present invention relates to a carrier allocation technology, and in particular, to an uplink carrier selection method, a network side network element, a user equipment, and a storage medium.
  • LTE Long Term Evolution – Unlicensed
  • LTE-U Long Term Evolution – Unlicensed
  • Wired Fidelity wireless Fidelity
  • radar radar
  • LTE-U system Does not affect and retain LTE technology features.
  • the LTE-U system may also be referred to as an LTE Licensed Assisted Access (LAA) system.
  • LAA LTE Licensed Assisted Access
  • the LAA utilizes the unlicensed spectrum, including the Carrier Aggregation Supplemental Downlink (CA SDL), the Carrier Aggregation Time Division Duplex (CA TDD), and the Standalone.
  • CA SDL Carrier Aggregation Supplemental Downlink
  • CA TDD Carrier Aggregation Time Division Duplex
  • Standalone the Carrier Aggregation Time Division Duplex
  • the 5G spectrum has a wealth of unlicensed carrier resources and can use up to 24 unlicensed carriers of 20 MHz bandwidth (the specific unlicensed carrier frequency bands or quantities that can be used also depend on the rules of different countries/regions). Therefore, for multiple unlicensed carrier scenarios, the LAA access point or UE may scan and listen to multiple unlicensed carriers before using the unlicensed carrier, preferentially selecting one or more loads that are relatively light or clean. Unlicensed carriers are used for their own purposes, ensuring the principle of friendly coexistence and the efficiency of spectrum usage.
  • a CA-capable UE can aggregate 5 component carriers simultaneously and receive physical A downlink shared channel (PDSCH, Physical Downlink Shared Channel), and the number of carriers or aggregation capability of the uplink aggregation simultaneously transmitting the PUSCH is less than or equal to the downlink, that is, the UE UL CA capability is generally less than or equal to 5 component carriers.
  • PDSCH Physical A downlink shared channel
  • UE UL CA capability is generally less than or equal to 5 component carriers.
  • 3GPP is currently researching carrier aggregation enhancement of more than 5 component carriers (up to 31 component carriers), multi-member carrier aggregation may lead to increased complexity of baseband, especially radio frequency, which may cause excessive design complexity of the UE. At the same time, it will also lead to increased costs.
  • the UE When the UE has an uplink transmission request, the UE performs an operation of the LBT/CCA (Listen before Talk/Clear Channel Assessment) operation on the scheduled carrier according to the uplink scheduling permission sent by the base station.
  • LBT/CCA Listen before Talk/Clear Channel Assessment
  • One or more unlicensed carriers transmit data, and if the LBT carrier is busy, it cannot be sent temporarily.
  • the uplink scheduling grant is limited to the uplink CA capability of the UE.
  • the uplink CA capability of the UE is 2, that is, the maximum number of component carriers can be aggregated and the PUSCH is simultaneously transmitted.
  • the base station or the LAA access point simultaneously schedules at most 2 unlicensed carriers. LBT or CCA is performed on these two unlicensed carriers. This will greatly reduce the chances of sending. Therefore, it is necessary to provide a method to improve the uplink transmission opportunity of the UE to improve system performance and use efficiency of the unlicensed spectrum.
  • the embodiment of the present invention provides an uplink carrier selection method, a network side network element, a user equipment, and a storage medium.
  • the ability of the network side to schedule the number of unlicensed uplink carriers for the user equipment UE is greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, or the capability of the network side to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the uplink of the UE.
  • the network side schedules one or more unlicensed uplink carriers for the UE by using one control signaling.
  • the network side when the network side has the number of unlicensed uplink carriers scheduled by the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, the network side also notifies the UE A set of candidate uplink carriers that can be used for uplink data transmission.
  • the network side also notifies the UE of the scheduling parameter of the carrier in the candidate uplink carrier set; or the network side also uses the same as the unlicensed uplink carrier scheduled for the UE. Notifying the UE of the correspondence between the carrier in the candidate uplink carrier set and the unlicensed uplink carrier scheduled for the UE;
  • the UE causing the UE to preferentially use the carrier that can be used for uplink data transmission from the scheduled unlicensed uplink carrier, and if the selected upper and lower carriers are smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, A carrier that can be used for uplink data transmission is selected in the uplink carrier set.
  • the scheduling parameter of the carrier in the candidate uplink carrier set is the same as the scheduling parameter of the scheduled unlicensed uplink carrier, or the scheduling parameter and scheduling of one or more carriers in the candidate uplink carrier set.
  • the scheduling parameters of one or more unlicensed uplink carriers are the same.
  • the network side has the capability of scheduling the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the number of available carriers in the scheduled unlicensed uplink carriers.
  • the uplink carrier aggregation capability of the UE is smaller than the uplink carrier aggregation capability of the UE, receiving, by the UE, scheduling parameters of the non-scheduled other idle carriers that are monitored by the UE, and instructing the UE to select, from the idle carriers, uplink data. Carrier transmitted.
  • the scheduling parameter includes at least one of the following parameters:
  • the time-frequency resource allocation parameter, the frequency hopping, modulation and coding scheme, the redundancy version, and the transmit power of the physical uplink shared channel PUSCH control the TPC command.
  • the user equipment UE receives the scheduling parameter of the unlicensed uplink carrier scheduled by the network side for the UE, and the UE selects a payload that can be used for uplink data transmission from the notified unlicensed uplink carrier.
  • the capability of the number of unlicensed uplink carriers scheduled by the UE on the network side is greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, or the capability of the network side to schedule the number of unlicensed uplink carriers scheduled by the UE is less than It is equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the network side schedules one or more unlicensed uplink carriers for the UE by using one control signaling.
  • the UE when the network side schedules the number of the unlicensed uplink carriers to be scheduled by the UE to be less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, the UE also receives the energy sent by the network side. A set of candidate uplink carriers for uplink data transmission.
  • the UE preferentially selects a carrier that can be used for uplink data transmission from the scheduled unlicensed uplink carrier, and when the selected upper and lower carriers are smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, And selecting a carrier that can be used for uplink data transmission from the candidate uplink carrier set.
  • the scheduling parameter of the carrier in the candidate uplink carrier set is the same as the scheduling parameter of the scheduled unlicensed uplink carrier, or the scheduling parameter and scheduling of one or more carriers in the candidate uplink carrier set.
  • the scheduling parameters of one or more unlicensed uplink carriers are the same.
  • the capability of the network side to schedule the number of unlicensed uplink carriers scheduled by the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the number of available carriers in the scheduled unlicensed uplink carriers is less than
  • the UE listens to other unscheduled idle carriers, and sends the information of the idle carrier that is detected and the scheduling parameters of the idle carrier to the network side.
  • the method before the UE detects the idle carrier to the UE, using the idle carrier for uplink data transmission, the method further includes:
  • the reserved signal or the reserved channel includes at least one of the following information: an uplink reference signal, an uplink control channel, control information, and broadcast information.
  • the UE sends the information of the idle carrier, the information of the scheduling parameter of the idle carrier, and the reserved signal or reserved channel to the network side by using an authorized carrier or a primary serving cell.
  • the network side network element provided by the embodiment of the present invention includes: a scheduling unit and a notification unit, where:
  • a scheduling unit configured to be an unlicensed uplink carrier scheduled for the user equipment UE, where the network side network element has a capacity of the number of unlicensed uplink carriers scheduled by the UE, and is greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, or The capability of the network side network element to schedule the number of unlicensed uplink carriers scheduled by the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE;
  • the notifying unit is configured to notify the UE of the scheduling parameter of the scheduled unlicensed uplink carrier, so that the UE selects a carrier that can be used for uplink data transmission from the notified unlicensed uplink carriers.
  • the notification unit is further configured to The UE notifies the set of candidate uplink carriers that can be used for uplink data transmission.
  • the notification unit is further configured to notify the UE of a scheduling parameter of a carrier in the candidate uplink carrier set; or use the same scheduling as an unlicensed uplink carrier scheduled for the UE. Notifying the UE of a correspondence between a carrier in the candidate uplink carrier set of the parameter and the unlicensed uplink carrier scheduled by the UE;
  • the UE causing the UE to preferentially use the carrier that can be used for uplink data transmission from the scheduled unlicensed uplink carrier, and if the selected upper and lower carriers are smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, A carrier that can be used for uplink data transmission is selected in the uplink carrier set.
  • the network side network element schedules, for the UE, scheduling parameters of multiple or all carriers in the unlicensed uplink carrier to be the same;
  • the scheduling parameter of the carrier in the candidate uplink carrier set is the same as the scheduling parameter of the scheduled unlicensed uplink carrier, or the scheduling parameter of one or more carriers in the candidate uplink carrier set is one or more scheduled ones
  • the scheduling parameters of the authorized uplink carrier are the same.
  • the network element further includes: a receiving unit and an indicating unit, where:
  • the receiving unit is configured to: the network side network element schedules the number of the unlicensed uplink carriers scheduled by the UE to be less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the available carriers in the scheduled unlicensed uplink carriers When the number is smaller than the uplink carrier aggregation capability of the UE, receiving scheduling parameters of the non-scheduled other idle carriers that the UE reports on the UE;
  • an indication unit configured to instruct the UE to select a carrier that can be used for uplink data transmission from the idle carriers.
  • the user equipment provided by the embodiment of the present invention includes: a receiving unit and a selecting unit, where:
  • a receiving unit configured to receive a scheduling parameter of an unlicensed uplink carrier scheduled by the network side for the user equipment
  • a selecting unit configured to select a carrier that can be used for uplink data transmission from the notified unlicensed uplink carrier; wherein, the capability of the number of unlicensed uplink carriers scheduled by the UE on the network side is greater than that supported by the uplink carrier aggregation capability of the UE.
  • the number of carriers, or the ability of the network side to schedule the number of unlicensed uplink carriers scheduled by the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the receiving unit is further configured to receive the network. a set of candidate uplink carriers that can be used for uplink data transmission and a scheduling parameter of carriers in the candidate uplink carrier set;
  • the selecting unit is further configured to preferentially from the scheduled unlicensed uplink carriers.
  • the carrier that can be used for uplink data transmission when the selected upper and lower carriers are smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, select a carrier that can be used for uplink data transmission from the candidate uplink carrier set.
  • the scheduling parameter of the carrier in the candidate uplink carrier set is the same as the scheduling parameter of the scheduled unlicensed uplink carrier, or the scheduling parameter and scheduling of one or more carriers in the candidate uplink carrier set.
  • the scheduling parameters of one or more unlicensed uplink carriers are the same.
  • the user equipment further includes: a listening unit and a sending unit, where:
  • the intercepting unit is configured to schedule the number of unlicensed uplink carriers scheduled by the UE for the UE to be less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the number of available carriers in the scheduled unlicensed uplink carriers.
  • the uplink carrier aggregation capability of the UE is smaller than that, the other idle carriers that are not scheduled are intercepted;
  • the sending unit is configured to send the information of the idle carrier that is detected and the scheduling parameter of the idle carrier to the network side.
  • the sending unit before the listening unit detects the idle carrier to the user equipment, using the idle carrier for uplink data transmission, the sending unit is further configured to: The network side sends a reserved signal or a reserved channel; the reserved signal or the reserved channel includes at least one of the following information: an uplink reference signal, an uplink control channel, control information, and broadcast information.
  • the sending unit sends the information of the idle carrier, the information of the scheduling parameter of the idle carrier, and the reserved signal or reservation to the network side by using an authorized carrier or a primary serving cell. channel.
  • a storage medium provided by an embodiment of the present invention, wherein the storage medium stores a computer program, and the computer program is configured to perform the uplink carrier selection method.
  • the network side is configured to allocate the number of unlicensed uplink carriers for the user equipment UE to be greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, or the network side schedules the number of unlicensed uplink carriers for the UE.
  • the capability is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE; and the UE is selected from the scheduled unlicensed uplink carriers to be used for uplink data transmission.
  • the UE When the capability of the UE to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, the UE cannot select the uplink from the scheduled unlicensed uplink carriers.
  • the carrier of the data transmission When the carrier of the data transmission is used, the UE selects a carrier for uplink data transmission from the set of candidate carriers notified by the network side, or selects a carrier for uplink data transmission from the currently-available idle carrier to improve the uplink of the UE. Data transmission efficiency, so that the UE selects as many uplink carriers as possible for uplink data transmission.
  • FIG. 1 is a schematic flowchart of an uplink carrier selection method according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic flowchart of an uplink carrier selection method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of a network side network element according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of an uplink carrier selection method according to Embodiment 1 of the present invention. As shown in FIG. 1 , an uplink carrier selection method according to an embodiment of the present invention includes the following steps:
  • Step 101 The network side schedules an unlicensed uplink carrier for the UE.
  • the capability of the network side to schedule the number of unlicensed uplink carriers for the user equipment UE is greater than the foregoing.
  • the number of carriers supported by the uplink carrier aggregation capability of the UE, or the capability of the network side to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the UE in order to make the uplink data transmission efficiency of the UE higher, the UE is configured to schedule as many uplink carriers as possible, so that the UE selects the corresponding uplink carrier for the carrier set, and enables the UE to use the largest carrier aggregation capability for uplink. data transmission.
  • the UE when the capability of the user equipment to schedule the number of unlicensed uplink carriers is greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, the UE selects from the notified unlicensed uplink carriers.
  • the number of carriers used for uplink data transmission is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the number of unlicensed uplink carriers scheduled for the UE is preferably greater than the maximum number of carriers supported by the uplink carrier aggregation capability of the UE, so that the UE can select the carrier aggregation capability equal to the carrier.
  • the carrier with the largest number of carriers supported performs uplink carrier aggregation to maximize the number of carriers for uplink data transmission to improve the efficiency of uplink data transmission.
  • the network side when the number of unlicensed uplink carriers scheduled by the network side for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, the network side also notifies the UE a set of candidate uplink carriers for uplink data transmission;
  • the network side also notifies the UE of the scheduling parameter of the carrier in the candidate uplink carrier set, or the network side further uses the same scheduling parameter as the unlicensed uplink carrier scheduled for the UE. Notifying the UE of a correspondence between a carrier in the candidate uplink carrier set and the unlicensed uplink carrier scheduled by the UE; and causing the UE to preferentially select from the scheduled unlicensed uplink carriers for uplink data transmission.
  • a carrier where the selected uplink carrier is smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, and selecting a carrier that can be used for uplink data transmission from the candidate uplink carrier set;
  • the number of carriers in the candidate uplink carrier set is greater than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the number of unlicensed uplink carriers selected by the UE for uplink data transmission may be smaller than the uplink carrier aggregation of the uplink when the number of unsupported uplink carriers is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the maximum number of carriers supported Therefore, in the embodiment of the present invention, the network side also sends a candidate uplink carrier set that can be used for uplink data transmission to the UE, so that the candidate uplink carrier is selected when the uplink aggregated carrier selected by the UE does not reach the maximum value.
  • the uplink carrier selection is performed in the set.
  • the network side schedules one or more unlicensed uplink carriers for the UE by using one control signaling or control signaling.
  • the scheduling parameter of the carrier in the candidate uplink carrier set is the same as the scheduling parameter of the scheduled unlicensed uplink carrier, or the scheduling parameter of one or more carriers in the candidate uplink carrier set is one or more scheduled ones
  • the scheduling parameters of the authorized uplink carrier are the same.
  • the scheduling parameters of the carriers in the candidate uplink carrier set may be the same as the scheduling parameters of the scheduled unlicensed uplink carriers, so that the network side When the scheduling parameter of the scheduled unlicensed uplink carrier is notified to the UE, the scheduling parameter corresponding to the carrier in the candidate uplink carrier set is also notified to the UE, and the scheduling parameter notification is not necessary for the carrier in the candidate uplink carrier set.
  • the capability of the network side to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the UE cannot select from the scheduled unlicensed uplink carriers.
  • the scheduling parameter of the non-scheduled other idle carrier that the UE reports on the UE is received, and the UE is selected from the idle carrier to be used for uplink data transmission. Carrier.
  • the network side when the network side schedules an unlicensed uplink carrier for the UE, the currently scheduled unlicensed uplink carrier cannot be used by the UE for uplink data transmission, and the network side also fails to The UE notifies the candidate uplink carrier set, so that the UE needs to listen to other idle carriers, and notifies the network side of the interception result of the idle carrier, so as to use the idle carriers for uplink data transmission, so as to improve the uplink data transmission efficiency of the UE. Improved, no situation where no carrier resources are available.
  • Step 102 Notify the UE of scheduling parameters of the scheduled unlicensed uplink carriers.
  • the purpose of notifying the scheduling parameters of the scheduled unlicensed uplink carriers to the UE is to enable the UE to select a carrier that can be used for uplink data transmission from the notified unlicensed uplink carriers.
  • the scheduling parameter includes at least one of the following parameters:
  • a time-frequency resource allocation parameter a frequency hopping, a modulation and coding scheme, a redundancy version, and a Physical Uplink Shared Channel (TPSCH) Transmit Power Control (TPC) command.
  • TPSCH Physical Uplink Shared Channel
  • the network side needs to notify the UE of the scheduling parameters of the unlicensed uplink carrier scheduled for the UE, so that the UE can accurately listen to the unlicensed uplink carrier, and use the available uplink carrier that is detected to perform uplink.
  • the carrier is aggregated and uplink data is transmitted.
  • the uplink carrier selection method of this example is applicable to a network side device.
  • the uplink carrier selection method in this example includes the following steps:
  • Step 201 The UE receives scheduling parameters of the unlicensed uplink carrier scheduled by the network side for the UE.
  • the capability of the network side to schedule the number of unlicensed uplink carriers for the user equipment UE is greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, or the capability of the network side to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the UE.
  • the number of carriers supported by the upstream carrier aggregation capability is greater than the number of carriers supported by the upstream carrier aggregation capability.
  • the network side schedules an unlicensed uplink carrier for the UE, and notifies the UE of the scheduling parameter of the scheduled unlicensed uplink carrier, so that the UE selects a payload that can be used for uplink data transmission.
  • Step 202 The UE selects a carrier that can be used for uplink data transmission from the notified unlicensed uplink carriers.
  • the UE when the capability of the user equipment to schedule the number of unlicensed uplink carriers is greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, the UE selects from the notified unlicensed uplink carriers.
  • the number of carriers used for uplink data transmission is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the UE selects a carrier that can be used for uplink data transmission from the notified unlicensed uplink carrier.
  • the notified number of scheduled unlicensed uplink carriers is greater than the uplink carrier aggregation capability of the UE.
  • the UE when the network side is configured to schedule the number of unlicensed uplink carriers for the UE to be less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, the UE also receives the uplink that can be used for uplink a set of candidate uplink carriers for data transmission, and scheduling parameters of carriers in the candidate uplink carrier set;
  • the UE preferentially selects a carrier that can be used for uplink data transmission from the scheduled unlicensed uplink carrier according to the scheduling parameter, and when the selected upper and lower carriers are smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, Selecting a carrier that can be used for uplink data transmission in the candidate uplink carrier set;
  • the number of carriers in the candidate uplink carrier set is greater than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the network side may send the uplink data transmission to the UE.
  • Candidate uplink carrier set for UE candidate The carrier is selected in the uplink carrier set for uplink data transmission.
  • the network side uses one control signaling or scheduling signaling to schedule one or more unlicensed uplink carriers for the UE; the scheduling parameters of the carriers in the candidate uplink carrier set and the scheduled non-authorization
  • the scheduling parameters of the uplink carrier are the same, or the scheduling parameters of one or more carriers in the candidate uplink carrier set are the same as the scheduling parameters of the scheduled one or more unlicensed uplink carriers.
  • the UE when the capability of the network side to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, the UE is configured from the scheduled unlicensed uplink carriers according to the scheduling parameter.
  • the UE listens to other unscheduled idle carriers, and the information of the idle carrier that is detected and the scheduling parameters of the idle carrier are sent to the network side. send.
  • the UE when the network side notifies the UE of the number of unlicensed uplink carriers, but does not notify the UE of the candidate uplink carrier set, the UE will listen to other idle carriers to detect whether there is available uplink data. Carrier transmitted.
  • the method before the UE detects the idle carrier, and the UE uses the idle carrier to perform uplink data transmission, the method further includes:
  • the UE sends a reserved signal or a reserved channel to the network side on the idle carrier; the reserved signal or the reserved channel includes at least one of the following information: an uplink reference signal, an uplink control channel, and control information. , broadcast information.
  • the UE sends the information of the idle carrier, the information of the scheduling parameter of the idle carrier, and the reserved signal or pre-send to the network side by using an authorized carrier or a primary serving cell. Leave the channel.
  • the scheduling parameter includes at least one of the following parameters:
  • Time-frequency resource allocation parameters frequency hopping, modulation and coding scheme, redundancy version, physical uplink shared channel (PUSCH, Physical Uplink Shared Channel), transmit power control (TPC, Transmit Power Control) command.
  • PUSCH Physical Uplink shared channel
  • TPC transmit power control
  • the uplink carrier selection method of this example is applicable to user equipment.
  • the number of uplink carriers scheduled by the base station may be greater than the carrier aggregation (CA) capability of the UE, that is, the maximum number of carriers that the UE can aggregate and transmit the PUSCH at the same time.
  • CA carrier aggregation
  • the number of uplink carriers scheduled by the base station may also be less than or equal to the uplink CA capability of the UE.
  • the number of scheduled uplink carriers is greater than or at least equal to the UE uplink CA capability.
  • the scheduling permission parameters of the scheduled uplink carriers may be restricted.
  • the uplink scheduling grant parameters may include time-frequency resource allocation, and/or frequency hopping, and/or modulation and coding schemes, and/or redundancy versions, TPC commands for scheduling PUSCH, and the like.
  • TPC commands for scheduling PUSCH and the like.
  • the uplink carrier number method of this example includes the following steps:
  • Step 1 The base station selects one or more unlicensed carriers as uplink transmission candidate carriers according to long-term energy detection or carrier sensing selection.
  • the maximum number of unlicensed carriers available to the base station is N1.
  • the set of N1 unlicensed carriers is SetA.
  • the carrier frequency bands and quantities in SetA are determined by national or regional rules, or operator allocation, or device support capabilities.
  • the base station selects one or more unlicensed carriers in the set SetA as the uplink (or downlink) transmission candidate carrier set SetB according to the long-term energy detection and carrier sensing.
  • SetB includes N2 unlicensed carriers.
  • the base station may be directly configured according to the current carrier condition without long-term detection and sensing, and configure some unlicensed carriers in SetA as uplink transmission candidate carriers. That is, N2 ⁇ N1.
  • step 1 and step 2 below may be combined into one step.
  • the base station may also directly schedule the carrier in the carrier set generated in step 1 as an uplink carrier, that is, the uplink transmission candidate carrier set SetB is the uplink carrier in step 2. Scheduling collections.
  • Step 2 When there is an uplink transmission request or a UE uplink scheduling request is received, the base station sends a scheduling grant to the UE.
  • the number of uplink carriers to be scheduled may be greater than the uplink CA aggregation capability of the UE, or may be less than or equal to the uplink CA aggregation capability of the UE.
  • the downlink CA capability of the UE is C DL and the uplink CA capability is C UL .
  • the base station may also directly schedule the carriers in the carrier set generated in step 1 as the uplink carrier, that is, step one and step two may be combined into one step. This has two meanings: one base station directly schedules all or part of the carriers in SetA as uplink transmission carriers according to the current carrier condition.
  • the second base station obtains a candidate carrier set SetB through long-term energy detection or carrier sensing selection, and the carrier set is the uplink carrier scheduling set SetC.
  • the base station may perform carrier screening in the set SetB according to the current status of each carrier load or interference, and select one or more carriers as the scheduling carrier.
  • the number N3 of scheduled uplink carriers may be greater than or equal to C UL or less than C UL .
  • N3 will be less than C UL unless the number of unlicensed carriers initially available to the base station is relatively small, or most of the carrier load or interference is heavy.
  • the scheduling permission parameters of the scheduled uplink carriers may be restricted.
  • the uplink scheduling grant parameters may include time-frequency resource allocation, and/or frequency hopping, and/or modulation and coding schemes, and/or redundancy versions, TPC commands for scheduling PUSCH, and the like.
  • some or all of the unlicensed carriers in the uplink carrier scheduling set may be restricted to use the same scheduling parameter, and the network side schedules one or more unlicensed uplink carriers for the UE by using one scheduling signaling or control signaling.
  • all unlicensed carriers in the scheduling set use the same scheduling parameters, such as time-frequency resource allocation, modulation and coding schemes, and so on. In this way, when the base station is scheduled, only the scheduled carrier sequence number and a set of shared scheduling parameters need to be sent to the UE.
  • the scheduling set For another example, several unlicensed carriers in the scheduling set use the same scheduling parameter, and other unlicensed carriers in the set use the same same scheduling parameter, so that when the base station schedules, only the scheduled carrier sequence number and corresponding The shared scheduling parameters are sent to the UE.
  • the base station limits the carrier scheduling parameters in the scheduling set, it should give priority to the use of the same scheduling parameters for carriers with similar load conditions or similar interference conditions or similar scheduling conditions. In this way, the downlink signaling overhead is greatly saved.
  • Step 3 After receiving the scheduling permission of the base station, the UE listens to the unlicensed carrier in the uplink carrier scheduling set, and selects one or more carriers as the uplink transmitting carrier.
  • the number of uplink transmission carriers selected needs to be less than or equal to the uplink CA aggregation capability of the UE.
  • the UE After receiving the scheduling permission of the base station, the UE listens to each carrier in the uplink carrier scheduling set SetC, and finds that N4 unlicensed carriers are idle.
  • the UE may continue to perform LBT or CCA until an available idle carrier is found. Alternatively, the UE may continue to perform the LBT or the CCA. When the preset timer T timer is exceeded, the idle carrier is still not detected, and the UE may re-initiate the uplink scheduling request or re-initiate the RACH procedure.
  • the UE may simultaneously transmit the PUSCH or other signals/channels according to the uplink scheduling grant parameters sent by the base station on the N4 carriers.
  • the UE may randomly select C UL carriers (or less than C UL carriers) as its own uplink transmission carrier. Alternatively, the UE selects one or more (requires less than or equal to C UL ) unlicensed carrier as the uplink transmit carrier according to current or previous RRM measurement results, or CSI measurement results, such as RSSI measurement results.
  • the uplink transmission of the UE needs to follow the uplink and downlink timing relationship, there is a delay in the uplink data transmission after the UE detects that there is an idle carrier. During this period, the UE needs to send a reservation signal on the selected idle carrier to reserve the channel.
  • the reserved signal can be a reference signal, a control channel, or control/broadcast information.
  • the number of uplink carriers scheduled by the base station is less than or equal to the uplink CA aggregation capability of the UE, that is, less than or equal to the maximum number of carriers that the UE can aggregate and transmit the PUSCH.
  • the base station instructs the UE to listen to a set of candidate uplink carriers that may be used for uplink transmission.
  • the candidate uplink carrier set may be greater than the uplink CA aggregation capability of the UE, that is, may be greater than the number of scheduled uplink carriers.
  • the base station Since the base station only sends the scheduling parameters corresponding to the carriers in the scheduling set, if the UE detects that the scheduling carriers are unavailable, the UE detects carriers other than the scheduling carriers in the candidate uplink carrier set, but it is not clear on these candidate carriers. How to transmit time-frequency resources, or modulation coding. Therefore, the base station and the UE need to limit the scheduling parameters of the carriers in the candidate uplink carrier set, including information exchange between the base station and the UE to achieve a handshake, or rigidly stipulate.
  • the carrier in the candidate uplink carrier set may be used to use the same scheduling parameter as the carrier in the uplink carrier scheduling set, or one or more carriers and uplink in the candidate uplink carrier set.
  • the scheduling parameters used by one or more carriers in the carrier scheduling set are the same.
  • the UE After receiving the base station scheduling grant and/or the candidate uplink carrier set, the UE listens to the unlicensed carrier in the scheduling set or the candidate uplink carrier set, and selects one or more carriers as the uplink sending carrier to simultaneously transmit. Transmitting the selected number of the uplink carrier aggregation capability required is less than the uplink C UL CA is equal to the UE, C UL is the maximum number of carriers polymerizable UE transmits PUSCH.
  • the UE preferably performs uplink transmission by using a carrier in the scheduling set.
  • the UE when the number of idle carriers in the scheduling set is equal to the uplink CA capability is C UL , even if there are additional idle carriers in the candidate carrier set, the UE only uses the C UL idle carriers in the scheduling set to simultaneously transmit the PUSCH.
  • the uplink carrier number method of this example includes the following steps:
  • Step 1 The base station selects according to long-term energy detection or carrier sensing, or directly configures the base station, and one or more unlicensed carriers serve as uplink transmission candidate carriers.
  • the maximum number of unlicensed carriers available to the base station is N1.
  • the set of N1 unlicensed carriers is SetA.
  • the carrier frequency bands and quantities in SetA are determined by national or regional rules, or operator allocation, or device support capabilities.
  • the base station selects one or more unlicensed carriers as the uplink (or downlink) transmission candidate carrier set SetB according to long-term energy detection and carrier sensing.
  • SetB includes N2 unlicensed carriers.
  • the base station may be directly configured according to the current carrier condition without long-term detection and sensing, and configure some unlicensed carriers in SetA as uplink transmission candidate carriers. That is, N2 ⁇ N1.
  • Step 2 When there is an uplink transmission request or a UE uplink scheduling request is received, the base station sends a scheduling grant to the UE.
  • the number of uplink carriers to be scheduled needs to be less than or equal to the uplink CA aggregation capability of the UE.
  • the base station instructs the UE to listen for a set of candidate carriers that may be used for uplink transmission.
  • the candidate uplink carrier set may be greater than the uplink CA aggregation capability of the UE, that is, may be greater than the scheduled uplink carrier number. the amount.
  • the downlink CA capability of the UE is C DL and the uplink CA capability is C UL .
  • the set of candidate uplink carriers that the base station sends to indicate that the UE is listening for possible uplink transmission is SetD, and SetD may be equal to SetB. That is to say, the set of carriers generated in step 1 is the set of candidate uplink carriers sent to the UE here as SetD.
  • the base station may perform carrier screening in the set SetB according to the current status of each carrier load or interference, and select one or more carriers as the candidate uplink carrier set SetD.
  • the candidate uplink carrier set SetD may include carriers in the uplink carrier scheduling set SetC.
  • the candidate uplink carrier set SetD may not include the carrier in the uplink carrier scheduling set SetC, and only includes carriers other than the SetC set.
  • the candidate uplink carrier set SetD may include a carrier in the uplink carrier scheduling set SetC. At this time, the number of carriers in the SetD set is generally greater than or equal to the number of carriers in the SetC set.
  • the base station can simultaneously transmit an uplink scheduling grant and a candidate uplink carrier set. There may also be a certain delay in the transmission of the two, and the uplink scheduling grant may be sent before the latter or after the latter.
  • the base station Since the base station only sends the scheduling parameters corresponding to the carriers in the scheduling set SetC, if the UE detects that none of the carriers in SetC is available or the number of available carriers is less than the UL CA capability, the UE detects carriers other than SetC in SetD, but It is clear how time-frequency resource transmission, or modulation coding, is performed on these candidate carriers. Therefore, the base station and the UE need to limit the scheduling parameters of the carriers in the candidate uplink carrier set, including information exchange between the base station and the UE to achieve a handshake, or hard. Sexual provisions to agree.
  • the carrier in the candidate uplink carrier set SetD may be used to use the same scheduling parameter as the carrier in the uplink carrier scheduling set SetC, and another one or more of the candidate uplink carrier set SetD and one or more carriers in the uplink carrier scheduling set SetC.
  • the scheduling parameters used by the carrier are the same. Thus, it is necessary to clarify the correspondence between one or more carriers in the two sets that use the same scheduling parameters. If the UE selects the carrier in SetD for uplink transmission, whether the carrier is in the scheduling set SetC, the same scheduling parameters as the carrier in SetC are selected for uplink transmission.
  • the uplink scheduling parameters may include time-frequency resource allocation, and/or frequency hopping, and/or modulation and coding schemes, and/or redundancy versions, and/or TPC commands for scheduling PUSCH, and the like.
  • the base station limits the carrier scheduling parameters in the two sets, it should give priority to the use of the same scheduling parameters for carriers with similar load conditions or similar interference conditions or similar scheduling conditions. In this way, the downlink signaling overhead is greatly saved. If all the carriers in the scheduling set use the same scheduling parameters, the base station may not send the carrier mapping relationship using the same scheduling parameter to the UE. If there are different scheduling parameters between the carriers in the scheduling set, the base station needs to send the carrier mapping relationship using the same scheduling parameter to the UE.
  • CC1 and CC2 are the carrier carriers scheduled by the base station
  • CC3 and CC4 are the candidate carriers of CC1
  • CC5 is the candidate carrier of CC2, and adopts the same scheduling parameters as CC2.
  • the resource sequence numbers and corresponding resource locations in the two UE scheduling parameters may be different.
  • the scheduling CC1 is the uplink transmission carrier of UE1 and UE2, and the time-frequency resources of UE1 and UE2 on CC1 do not overlap.
  • the base station separately allocates CC1 and CC2 as the uplink transmission carriers of UE1 and UE2, since CC1 and CC2 are different carriers, UE1 and UE2 may use resource blocks of the same or partially overlapping positions in different carriers, that is, in the scheduling parameters. Resource block parameter values may overlap.
  • the idle carrier CC3 is the candidate carrier of the two scheduling carriers. If both UE1 and UE2 use CC3 as the uplink transmission carrier, UE1 uses the scheduling parameter of CC1, and UE2 uses the scheduling parameter of CC2.
  • the first method is to use a fallback window when two UEs contend, that is, two UEs do not transmit at the same time, and the UE that transmits later delays transmission if it finds that the resource is occupied.
  • the second method is to prevent the same candidate carrier from using the scheduling parameters of the different scheduling carriers when the scheduling parameters of different scheduling carriers, especially the time-frequency resource parameters, are the same and overlap.
  • Step 3 After receiving the base station scheduling grant and/or the candidate uplink carrier set, the UE listens to the unlicensed carrier in the scheduling set or the candidate uplink carrier set, and selects one or more carriers as the uplink sending carrier.
  • the number of uplink transmission carriers selected needs to be less than or equal to the uplink CA aggregation capability of the UE.
  • the UE After receiving the base station scheduling grant and/or the candidate uplink carrier set, the UE listens to each carrier in the uplink carrier scheduling set SetC and the candidate uplink carrier set SetD, and finds that N4 unlicensed carriers are idle.
  • the UE may continue to perform LBT or CCA until an available idle carrier is found. Alternatively, the UE may continue to perform LBT or CCA. When the preset timer T timer is exceeded, the idle carrier is still not detected, and the UE may re-initiate the uplink scheduling request or re-initiate the RACH procedure.
  • the number of idle carriers in SetC is equal to the uplink CA capability is C UL
  • the UE only uses the C UL idle carriers in SetC to simultaneously transmit the PUSCH.
  • the polymerization can also be an additional SetD idle carrier is transmitted using the PUSCH only SetC the idle carrier.
  • the number of carriers transmitting PUSCH simultaneously in the two sets needs to be less than or equal to C UL .
  • the UE may use the idle carrier in SetD to simultaneously transmit the PUSCH.
  • the number of carriers transmitting PUSCH simultaneously in SetD needs to be less than or equal to C UL .
  • N4>C UL that is, the number of idle carriers in SetD is greater than the uplink aggregation capability of the UE, the UE may randomly select C UL carriers (or less than C UL carriers) as its own uplink transmission carrier. Alternatively, the UE selects one or more (requires less than or equal to C UL ) unlicensed carrier as the uplink transmit carrier according to current or previous RRM measurement results, or CSI measurement results, such as RSSI measurement results.
  • the UE uses the carrier in the non-SetC set for uplink transmission, it needs to use the same scheduling parameters as one, or multiple, or all carriers in the SetC set, including time-frequency resource allocation, and/or frequency hopping, and/or modulation and. Encoding scheme, and/or redundancy version, TPC command to schedule PUSCH, and the like.
  • the correspondence between carriers of one, multiple or all of the two sets using the same scheduling parameters shall be definitive by the base station, or defined between the base station and the UE, or selected by the UE.
  • the base station side explicitly specifies the correspondence between the parameters and the carrier, the base station needs to send the correspondence between the carriers in the two sets using the same scheduling parameter to the UE; if it is between the base station and the UE (for example, by the standard) For example, if the same scheduling parameter is used for all the carriers in the two sets, the base station does not need to send the correspondence indication to the UE; if the UE selects, for example, the UE selects the D1 carrier in the candidate uplink carrier set SetD for uplink transmission, D1 Use with C1 carrier in SetC The same scheduling parameter, the UE needs to send the correspondence between D1 and C1 to the base station.
  • the uplink transmission of the UE needs to follow the uplink and downlink timing relationship, there is a delay in the uplink data transmission after the UE detects that there is an idle carrier. During this period, the UE needs to send a reservation signal on the selected idle carrier to reserve the channel.
  • the reserved signal may be an uplink reference signal, an uplink control channel, or control/broadcast information.
  • the number of uplink carriers scheduled by the base station is less than or equal to the uplink CA capability of the UE, that is, less than or equal to the maximum number of carriers that the UE can aggregate and transmit the PUSCH.
  • the UE After receiving the scheduling permission sent by the base station, the UE listens to each uplink carrier scheduled by the base station. If the number of available carriers in the scheduling set is smaller than the uplink CA capability of the UE, the UE will listen to other non-scheduled carriers. If the idle carrier is detected, the UE sends the interception result and the scheduling carrier parameters used by the idle carrier to the UE. Base station.
  • the UE Since the uplink transmission of the UE needs to follow the uplink and downlink timing relationship, there is a delay in the uplink data transmission after the UE detects that there is an idle carrier. During this period, the UE needs to send a reserved signal/channel on the selected idle carrier to reserve the channel.
  • the reserved signal/channel may be an uplink reference signal, or an uplink control channel, or control/broadcast information.
  • the interception result of the UE for the non-scheduled aggregate carrier and the used scheduling carrier parameter may be sent to the base station through the reserved signal during this period, for example, the information may be controlled to feed back the above information.
  • the UE may also feed back the above information through an authorized carrier or a PCell.
  • the UE selects n carriers to transmit according to the result of the interception or carrier selection.
  • n ⁇ C UL
  • C UL is the maximum number of carriers that the UE can aggregate and transmit PUSCH.
  • FIG. 3 is a schematic structural diagram of a network side network element according to an embodiment of the present invention.
  • the network side network element in the embodiment of the present invention includes: a scheduling unit 30 and a notification unit 31, where:
  • the scheduling unit 30 is configured to be an unlicensed uplink carrier scheduled for the user equipment UE, where the network side network element has the capability for the user equipment UE to schedule the number of unlicensed uplink carriers is greater than that of the UE.
  • the number of carriers supported by the uplink carrier aggregation capability, or the capability of the network side network element to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE;
  • the notifying unit 31 is configured to notify the UE of scheduling parameters of the scheduled unlicensed uplink carriers.
  • the notification unit 31 is further configured to Notifying the UE of the candidate uplink carrier set that can be used for uplink data transmission; notifying the UE of the scheduling parameter of the carrier in the candidate uplink carrier set, or using the same scheduling as the unlicensed uplink carrier scheduled for the UE Notifying the UE of the correspondence between the carrier in the candidate uplink carrier set and the unlicensed uplink carrier scheduled by the UE; enabling the UE to preferentially use the uplink from the scheduled unlicensed uplink carrier a carrier for data transmission, where the selected upper and lower carriers are smaller than the number of carriers supported by the uplink carrier aggregation capability of the UE, and then selecting a carrier that can be used for uplink data transmission from
  • the number of carriers in the candidate uplink carrier set is greater than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the network side uses one control signaling or scheduling signaling to schedule one or more unlicensed uplink carriers for the UE; the scheduling parameters of the carriers in the candidate uplink carrier set and the scheduled non-authorization
  • the scheduling parameters of the uplink carrier are the same, or the scheduling parameters of one or more carriers in the candidate uplink carrier set are the same as the scheduling parameters of the scheduled one or more unlicensed uplink carriers.
  • the network side network element of the embodiment of the present invention further includes: a receiving unit (not shown) and an indicating unit (not shown), wherein:
  • the receiving unit is configured to: the network side network element is configured to schedule the number of unlicensed uplink carriers for the UE to be less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the scheduled non-granting And receiving, when the number of available carriers in the uplink carrier is smaller than the uplink carrier aggregation capability of the UE, receiving, by the UE, scheduling parameters of other non-scheduled idle carriers that are monitored by the UE;
  • an indication unit configured to instruct the UE to select a carrier that can be used for uplink data transmission from the idle carriers.
  • the scheduling parameter includes at least one of the following parameters:
  • the time-frequency resource allocation parameter, the frequency hopping, modulation and coding scheme, the redundancy version, and the transmit power of the physical uplink shared channel PUSCH control the TPC command.
  • the network side network element includes a network side device such as a base station, a base station controller, and a mobility management unit (MME, Mobility Management Entity).
  • a network side device such as a base station, a base station controller, and a mobility management unit (MME, Mobility Management Entity).
  • MME Mobility Management Entity
  • each unit in the network side network element shown in FIG. 3 can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment in the embodiment of the present invention includes: a receiving unit 40 and a selecting unit 41, where:
  • the receiving unit 40 is configured to receive a scheduling parameter of the unlicensed uplink carrier scheduled by the network side for the user equipment;
  • the selecting unit 41 is configured to select, from the notified unlicensed uplink carrier, a carrier that can be used for uplink data transmission, where the capability of the network side to schedule the number of unlicensed uplink carriers for the user equipment UE is greater than the uplink carrier aggregation capability of the UE.
  • the number of supported carriers, or the ability of the network side to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the selecting unit 41 when the network side is configured to schedule the number of unlicensed uplink carriers for the user equipment UE to be greater than the number of carriers supported by the uplink carrier aggregation capability of the UE, the selecting unit 41 is configured from the notified unlicensed uplink carriers. Select the number of carriers that can be used for uplink data transmission is less than The number of carriers supported by the uplink carrier aggregation capability of the user equipment.
  • the receiving unit 40 is configured to receive the network side to send, when the network side is configured to receive the number of unlicensed uplink carriers, and the number of carriers supported by the uplink carrier aggregation capability of the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE. a set of candidate uplink carriers that can be used for uplink data transmission, and scheduling parameters of carriers in the candidate uplink carrier set;
  • the selecting unit 41 is further configured to preferentially use the carrier that can be used for uplink data transmission from the scheduled unlicensed uplink carrier according to the scheduling parameter, where the selected upper and lower carriers are smaller than the uplink carrier aggregation capability of the UE.
  • a carrier that can be used for uplink data transmission is selected from the set of candidate uplink carriers;
  • the number of carriers in the candidate uplink carrier set is greater than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE.
  • the network side uses one control signaling or scheduling signaling to schedule one or more unlicensed uplink carriers for the UE; the scheduling parameters of the carriers in the candidate uplink carrier set and the scheduled non-authorization
  • the scheduling parameters of the uplink carrier are the same, or the scheduling parameters of one or more carriers in the candidate uplink carrier set are the same as the scheduling parameters of the scheduled one or more unlicensed uplink carriers.
  • the user equipment of the embodiment of the present invention further includes: a listening unit (not shown) and a sending unit (not shown), wherein:
  • the intercepting unit is configured to: the capability of scheduling the number of unlicensed uplink carriers for the UE on the network side is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, and the number of available carriers in the scheduled unlicensed uplink carriers is less than the number of carriers.
  • the uplink carrier aggregation capability of the UE is used, the other idle carriers that are not scheduled are intercepted;
  • the sending unit is configured to send the information of the idle carrier that is detected and the scheduling parameter of the idle carrier to the network side.
  • the listening unit detects the idle carrier to the user setting Before using the idle carrier for uplink data transmission, the sending unit is further configured to send a reserved signal or a reserved channel to the network side on the idle carrier; the reserved signal or reserved channel includes the following information At least one of: an uplink reference signal, an uplink control channel, control information, and broadcast information.
  • the sending unit sends the information of the idle carrier, the information of the scheduling parameter of the idle carrier, and the reserved signal or reservation to the network side by using an authorized carrier or a primary serving cell. channel.
  • the scheduling parameter includes at least one of the following parameters:
  • the time-frequency resource allocation parameter, the frequency hopping, modulation and coding scheme, the redundancy version, and the transmit power of the physical uplink shared channel PUSCH control the TPC command.
  • the user equipment includes a device such as a mobile phone.
  • the embodiment of the invention further describes a storage medium in which a computer program is stored, the computer program being configured to perform the uplink carrier selection method of the foregoing embodiments.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be aggregated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be through some interfaces.
  • the indirect coupling or communication connection of the unit or unit may be electrical, mechanical or other form.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be collectively grouped into one second processing unit, or each unit may be separately used as one unit, or two or more units may be combined into one unit.
  • the above-mentioned unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the UE when the capability of the UE to schedule the number of unlicensed uplink carriers for the UE is less than or equal to the number of carriers supported by the uplink carrier aggregation capability of the UE, when the UE cannot select from the scheduled unlicensed uplink carriers,
  • the carrier can be used for uplink data transmission, the UE selects a carrier for uplink data transmission from a set of candidate carriers notified by the network side, or selects a carrier for uplink data transmission from the currently-available idle carrier,
  • the uplink data transmission efficiency of the UE is improved, so that the UE selects as many uplink carriers as possible for uplink data transmission.

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Abstract

本发明公开了一种上行载波选择方法、网络侧网元及用户设备、存储介质，所述方法包括：UE接收网络侧为所述UE调度的非授权上行载波的调度参数，所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载波；其中，所调度的非授权上行载波数量大于所述UE的上行载波聚合能力所支持的载波数量，或者，所调度的非授权上行载波数量小于等于所述UE的上行载波聚合能力所支持的载波数量。

Description

上行载波选择方法、网络侧网元及用户设备、存储介质 技术领域
本发明涉及载波分配技术，尤其涉及一种上行载波选择方法、网络侧网元及用户设备、存储介质。
背景技术
长期演进(LTE，Long Term Evolution)系统使用非授权载波(LTE-U，Long Term Evolution–Unlicensed)是指在非授权的载波中部署LTE，用来满足LTE系统日益增长的容量需求和提高非授权频谱的使用效率，是LTE以及未来无线通信可能的一个重要演进方向。在设计LTE-U时，需要考虑如何与无线保真(WiFi，Wireless Fidelity)、雷达等异系统以及LTE-U同系统之间公平友好的竞争非授权载波来进行数据传输，同时需要尽可能地不影响和保留LTE技术特性。根据3GPP标准会议的表述，LTE-U系统也可称为LTE授权载波辅助接入(LAA，LTE Licensed Assisted Access)系统。
目前对于LAA利用非授权频谱的方式有频谱聚合补充下行链路(CA SDL，Carrier Aggregation Supplemental Downlink)、频谱聚合时分双工(CA TDD，Carrier Aggregation Time Division Duplex)、独立部署(Standalone)。
5G频谱具有丰富的非授权载波资源，可以使用多达24个20MHz带宽的非授权载波(具体可使用的非授权载波频段或数量还取决于不同国家/区域的规则要求)。因此，针对多个非授权载波场景，LAA接入点或UE可以在使用非授权载波之前，对多个非授权载波进行扫描和侦听，优先选择一个或多个负载相对较轻或最干净的非授权载波来为自身所用，保证了友好共存的原则，也提供了频谱使用的效率。
目前具有CA能力的UE，下行可以聚合5个成员载波同时接收物理下 行共享信道(PDSCH，Physical Downlink Shared Channel)，而上行聚合同时发送PUSCH的载波数或聚合能力要小于等于下行，也即UE UL CA能力一般小于等于5个成员载波。虽然目前3GPP正在研究超过5个成员载波(多达31个成员载波)的载波聚合增强，但是多成员载波聚合会导致基带尤其是射频的复杂性加大，从而会造成UE的设计复杂性过高，同时也会导致成本增加。
当UE有上行发送要求时，UE会根据基站发送的上行调度许可，对被调度的载波执行先听后说/空闲信道评估(LBT/CCA，Listen before Talk/Clear Channel Assessment)操作，来选择其中的一个或多个非授权载波进行数据发送，如果进行LBT的载波全忙，则暂时不能发送。上行调度授权会受限于UE上行CA能力，例如UE上行CA能力为2，即最多能聚合2个成员载波同时发送PUSCH，那么基站或LAA接入点最多同时调度2个非授权载波，UE相应地在这两个非授权载波上进行LBT或CCA。这样发送机会就会大大减小。因此需要提供一种方法来提高UE上行发送机会，以提高系统性能和非授权频谱的使用效率。
发明内容
为解决上述技术问题，本发明实施例提供了一种上行载波选择方法、网络侧网元及用户设备、存储介质。
本发明实施例提供的上行载波选择方法包括：
网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量；
将所调度的非授权上行载波的调度参数通知所述UE。
作为一种实现方式，所述网络侧使用一个控制信令为所述UE调度一个或多个非授权上行载波。
作为一种实现方式，所述网络侧为所述UE调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述网络侧还向所述UE通知能用于上行数据传输的候选上行载波集合。
作为一种实现方式，所述网络侧还将所述候选上行载波集合中的载波的调度参数通知所述UE；或者，所述网络侧还将与为所述UE调度的非授权上行载波使用相同的调度参数的所述候选上行载波集合中载波与该为所述UE调度的非授权上行载波之间的对应关系通知所述UE；
使所述UE优先从所调度的非授权上行载波中能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波。
作为一种实现方式，所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
作为一种实现方式，所述网络侧为所述UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，接收所述UE上报的所述UE侦听的非调度的其他空闲载波的调度参数，并指示所述UE从所述空闲载波中选择能用于上行数据传输的载波。
作为一种实现方式，所述调度参数包括以下参数的至少一种：
时频资源分配参数、跳频、调制和编码方案、冗余版本、物理上行共享信道PUSCH的发射功率控制TPC命令。
本发明实施例提供的上行载波选择方法，包括：
用户设备UE接收网络侧为所述UE调度的非授权上行载波的调度参数，所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载 波；其中，网络侧为UE调度的非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
作为一种实现方式，所述网络侧使用一个控制信令为所述UE调度一个或多个非授权上行载波。
作为一种实现方式，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述UE还接收所述网络侧发送的能用于上行数据传输的候选上行载波集合。
作为一种实现方式，所述UE优先从所调度的非授权上行载波中能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波。
作为一种实现方式，所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
作为一种实现方式，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，所述UE对非调度的其他空闲载波进行侦听，并将侦听到的空闲载波的信息、所述空闲载波的调度参数向所述网络侧发送。
作为一种实现方式，在所述UE侦听到所述空闲载波至所述UE使用空闲载波进行上行数据传输之前，所述方法还包括：
所述UE在所述空闲载波上向所述网络侧发送预留信号或预留信道；所 述预留信号或预留信道包括以下信息的至少之一：上行参考信号、上行控制信道、控制信息、广播信息。
作为一种实现方式，所述UE通过授权载波或主服务小区向所述网络侧发送所述空闲载波的信息、所述空闲载波的调度参数的信息、以及所述预留信号或预留信道。
本发明实施例提供的网络侧网元，包括：调度单元和通知单元，其中：
调度单元，配置为为用户设备UE调度的非授权上行载波，其中，网络侧网元为UE调度的非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧网元为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量；
通知单元，配置为将所调度的非授权上行载波的调度参数通知所述UE，以使所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载波。
作为一种实现方式，网络侧网元为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述通知单元还配置为，向所述UE通知能用于上行数据传输的候选上行载波集合。
作为一种实现方式，所述通知单元还配置为，将所述候选上行载波集合中的载波的调度参数通知所述UE；或者，将与为所述UE调度的非授权上行载波使用相同的调度参数的所述候选上行载波集合中载波与该为所述UE调度的非授权上行载波之间的对应关系通知所述UE；
使所述UE优先从所调度的非授权上行载波中能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波。
作为一种实现方式，所述网络侧网元为所述UE调度非授权上行载波中的多个或全部载波的调度参数相同；
所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
作为一种实现方式，所述网元还包括：接收单元和指示单元，其中：
接收单元，配置为在网络侧网元为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，接收所述UE上报的所述UE侦听的非调度的其他空闲载波的调度参数；
指示单元，配置为指示所述UE从所述空闲载波中选择能用于上行数据传输的载波。
本发明实施例提供的用户设备，包括：接收单元和选择单元，其中：
接收单元，配置为接收网络侧为所述用户设备调度的非授权上行载波的调度参数；
选择单元，配置为从所通知的非授权上行载波中选择能用于上行数据传输的载波；其中，网络侧为UE调度的非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
作为一种实现方式，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述接收单元，还配置为接收所述网络侧发送的能用于上行数据传输的候选上行载波集合，以及所述候选上行载波集合中的载波的调度参数；
对应地，所述选择单元，还配置为优先从所调度的非授权上行载波中 能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波。
作为一种实现方式，所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
作为一种实现方式，所述用户设备还包括：侦听单元和发送单元，其中：
侦听单元，配置为在网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，对非调度的其他空闲载波进行侦听；
发送单元，配置为将侦听到的空闲载波的信息、所述空闲载波的调度参数向所述网络侧发送。
作为一种实现方式，在所述侦听单元侦听到所述空闲载波至所述用户设备使用空闲载波进行上行数据传输之前，所述发送单元，还配置为在所述空闲载波上向所述网络侧发送预留信号或预留信道；所述预留信号或预留信道包括以下信息的至少之一：上行参考信号、上行控制信道、控制信息、广播信息。
作为一种实现方式，所述发送单元，通过授权载波或主服务小区向所述网络侧发送所述空闲载波的信息、所述空闲载波的调度参数的信息、以及所述预留信号或预留信道。
本发明实施例提供的存储介质，所述存储介质中存储有计算机程序，所述计算机程序配置为执行所述的上行载波选择方法。
本发明实施例的技术方案中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量；使所述UE从所调度的非授权上行载波中选择能用于上行数据传输的载波。在网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量的情况下，当UE不能从所调度的非授权上行载波中选择出能用于上行数据传输的载波时，UE将从网络侧通知的候选载波集合中选择用于上行数据传输的载波，或者，从当前侦听的空闲载波中选择用于上行数据传输的载波，以提升UE的上行数据发送效率，以使UE选择尽可能多的上行载波进行上行数据传输。
附图说明
图1为本发明实施例一的上行载波选择方法的流程示意图；
图2为本发明实施例二的上行载波选择方法的流程示意图；
图3为本发明实施例的网络侧网元的组成结构示意图；
图4为本发明实施例的用户设备的组成结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
图1为本发明实施例一的上行载波选择方法的流程示意图，如图1所示，本发明实施例的上行载波选择方法包括以下步骤：
步骤101：网络侧为UE调度非授权上行载波；
其中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述 UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
本发明实施例中，为使UE的上行数据传输效率更高，为UE调度尽可能多的上行载波，以使UE选择相应的上行载波进行载波集合，并使UE使用最大的载波集合能力进行上行数据传输。
本发明实施例中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量时，所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载波数量小于等于所述UE的上行载波聚合能力所支持的载波数量。
为使UE以最大载波聚合能力进行上行载波聚合，为UE调度的非授权上行载波数量最好大于UE的上行载波聚合能力所支持的最大载波数量，这样，可以供UE选择出等于自身载波聚合能力所支持的最大载波数量的载波进行上行载波聚合，使上行数据传输的载波数量达到最大，以提升上行数据传输的效率。
本发明实施例中，当所述网络侧为所述UE调度的非授权上行载波数量小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述网络侧还向所述UE通知能用于上行数据传输的候选上行载波集合；
所述网络侧还将所述候选上行载波集合中的载波的调度参数通知所述UE，或者，所述网络侧还将与为所述UE调度的非授权上行载波使用相同的调度参数的所述候选上行载波集合中载波与该为所述UE调度的非授权上行载波之间的对应关系通知所述UE；使所述UE优先从所调度的非授权上行载波中选择能用于上行数据传输的载波，所选择的上行载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波；
其中，所述候选上行载波集合中的载波数量大于或者小于等于所述UE的上行载波聚合能力所支持的载波数量。
当网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，UE进行上行数据传输所选择的非授权上行载波数量可能小于自身的上行载波聚合所支持的最大载波数量，因此，本发明实施例中网络侧还向UE发送能用于上行数据传输的候选上行载波集合，以便在UE选择的上行聚合载波没达到最大值时，从候选上行载波集合中进行上行载波选择。
本发明实施例中，所述网络侧使用一个控制信令或控制信令为所述UE调度一个或多个非授权上行载波。
所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
为使网络侧与UE之间的交互信令尽可能的少，可以采用使候选上行载波集合中载波的调度参数与尽可能多的所调度的非授权上行载波的调度参数相同，这样，网络侧在将所调度的非授权上行载波的调度参数通知给UE时，相当于也将候选上行载波集合中载波的调度参数通知给了UE，不必再专门针对候选上行载波集合中载波进行调度参数通知。
本发明实施例中，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所述UE从所调度的非授权上行载波中选择不出能用于上行数据传输的载波时，接收所述UE上报的所述UE侦听的非调度的其他空闲载波的调度参数，并指示所述UE从所述空闲载波中选择能用于上行数据传输的载波。
本发明实施例中，当网络侧为所述UE调度了非授权上行载波，而当前所调度的非授权上行载波并不能被UE用于上行数据传输，而网络侧也未向 UE通知候选上行载波集合，这样，UE需要对其他的空闲载波进行侦听，并将空闲载波的侦听结果通知网络侧，以便使用这些空闲载波进行上行数据传输，以使UE的上行数据传输效率得到提升，不会出现无载波资源可用的情形。
步骤102：将所调度的非授权上行载波的调度参数通知所述UE。
将所调度的非授权上行载波的调度参数通知所述UE的目的，是使所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载波。
本发明实施例中，所述调度参数包括以下参数的至少一种：
时频资源分配参数、跳频、调制和编码方案、冗余版本、物理上行共享信道(PUSCH，Physical Uplink Shared Channel)的发射功率控制(TPC，Transmit Power Control)命令。
本发明实施例中，网络侧需要将为UE调度的非授权上行载波的调度参数通知给该UE，才能保证UE准确侦听该非授权上行载波，并利用所侦听到的可用上行载波进行上行载波集合，并进行上行数据传输。
本示例的上行载波选择方法适用于网络侧设备中。
图2为本发明实施例二的上行载波选择方法的流程示意图，如图2所示，本示例的上行载波选择方法包括以下步骤：
步骤201：UE接收网络侧为所述UE调度的非授权上行载波的调度参数。
其中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
本发明实施例中，网络侧为UE调度非授权上行载波，并将所调度的非授权上行载波的调度参数通知UE，以使UE选择能用于上行数据传输的载 波，以进行上行载波聚合。
步骤202：UE从所通知的非授权上行载波中选择能用于上行数据传输的载波。
本发明实施例中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量时，所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载波数量小于等于所述UE的上行载波聚合能力所支持的载波数量。
当网络侧仅向UE通知了非授权上行载波，UE从所通知的非授权上行载波中选择能用于上行数据传输的载波，当然所通知的调度非授权上行载波数量大于UE的上行载波聚合能力所支持的最大载波数量，但UE仅能选择小于等于所述UE的上行载波聚合能力所支持的载波数量的非授权上行载波。
本发明实施例中，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述UE还接收所述网络侧发送的能用于上行数据传输的候选上行载波集合，以及所述候选上行载波集合中的载波的调度参数；
所述UE根据调度参数优先从所调度的非授权上行载波中能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波；
其中，所述候选上行载波集合中的载波数量大于或者小于等于所述UE的上行载波聚合能力所支持的载波数量。
为保证UE上行数据传输效率，当网络侧为UE所调度的非授权上行载波数量小于等于UE的上行载波聚合能力所支持的最大载波数量时，网络侧可以向UE发送能用于上行数据传输的候选上行载波集合，以便UE从候选 上行载波集合中选择载波进行上行数据传输。
本发明实施例中，所述网络侧使用一个控制信令或调度信令为所述UE调度一个或多个非授权上行载波；所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
本发明实施例中，当网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，所述UE根据调度参数从所调度的非授权上行载波中选择不出能用于上行数据传输的载波时，所述UE对非调度的其他空闲载波进行侦听，并将侦听到的空闲载波的信息、所述空闲载波的调度参数向所述网络侧发送。
本发明实施例中，当网络侧通知给UE的非授权上行载波数量较少，而又未向UE通知候选上行载波集合时，UE将侦听其他的空闲载波，以便检测是否存在可用于上行数据传输的载波。
本发明实施例中，在所述UE侦听到所述空闲载波至所述UE使用空闲载波进行上行数据传输之前，所述方法还包括：
所述UE在所述空闲载波上向所述网络侧发送预留信号或预留信道；所述预留信号或预留信道包括以下信息的至少之一：上行参考信号、上行控制信道、控制信息、广播信息。
本发明实施例中，具体地，所述UE通过授权载波或主服务小区向所述网络侧发送所述空闲载波的信息、所述空闲载波的调度参数的信息、以及所述预留信号或预留信道。
本发明实施例中，所述调度参数包括以下参数的至少一种：
时频资源分配参数、跳频、调制和编码方案、冗余版本、物理上行共享信道(PUSCH，Physical Uplink Shared Channel)的发射功率控制(TPC， Transmit Power Control)命令。
本示例的上行载波选择方法适用于用户设备中。
以下通过具体示例，进一步阐明本发明实施例的技术方案的实质。
示例一
基站调度的上行载波数可以大于UE上行载波聚合(CA，Carrier Aggregation)能力，也即大于UE能聚合同时发送PUSCH的最大载波数。当然，基站调度的上行载波数也可以小于等于UE上行CA能力。但是一般情况下，为增加非授权频谱中UE上行发送机会和提高系统性能，优选调度上行载波的数量大于或至少等于UE上行CA能力。
UE接收到基站发送的调度许可后，对基站调度的各个上行载波进行侦听，根据侦听或载波选择结果，选择其中的n个载波来发送。n<＝CUL，CUL为UE能聚合发送PUSCH的最大载波数。
为了降低发送上行调度许可的下行信令开销，可以对被调度的各个上行载波的调度许可参数作出限制。上行调度许可参数可以包括时频资源分配、和/或跳频、和/或调制和编码方案、和/或冗余版本、调度PUSCH的TPC命令等。例如，可以限制上行载波调度集合中的几个或全部非授权载波使用相同的调度参数，这样基站只需要发送几套或一套调度参数。
本示例的上行载波数方法包括以下步骤：
步骤一，基站根据长期的能量检测或载波感知选择，或基站直接配置一个或多个非授权载波作为上行发送候选载波。
例如，基站可利用的非授权载波最大数量为N1。这N1个非授权载波集合为SetA。SetA中各载波频段及数量由国家或地区规则、或运营商分配、或设备支持能力等因素决定。基站根据长期的能量检测、载波感知在集合SetA中选择一个或多个非授权载波作为上行(或下行)发送候选载波集合SetB。SetB中包括N2个非授权载波。选择的因素可以包括SetA中各个载 波的负载情况、干扰情况以及占用情况等。其中，N2<＝N1。
或者，基站可以不经过长期检测和感知，可以直接配置，将SetA中N1个非授权载波全部配置为上行发送候选载波。即N2＝N1。或者，基站可以不经过长期检测和感知，而根据当前的载波状况直接配置，将SetA中部分非授权载波配置为上行发送候选载波。即N2<N1。
或者，步骤一和以下的步骤二可以合为一个步骤，基站也可以将步骤一产生的载波集合中的载波直接调度为上行载波，也就是上行发送候选载波集合SetB即为步骤二中的上行载波调度集合。
步骤二，当有上行传输要求或接收到UE上行调度请求，基站发送调度许可给UE。调度的上行载波数量可以大于UE的上行CA聚合能力，也可以小于等于UE的上行CA聚合能力。
假设UE下行CA能力为CDL，上行CA能力为CUL。并设基站发送的上行载波调度集合为SetC(基站不一定需要直接发送调度集合SetC，基站发送的可以是上行调度许可，上行调度许可中这些被调度的载波可以组成SetC)，SetC包含N3个非授权载波。其中，N3<＝N2。
基站也可以将步骤一产生的载波集合中的载波直接调度为上行载波，也即步骤一和步骤二可以合为一个步骤。这有两个含义：其一基站根据当前载波状况直接将SetA中全部或部分载波调度为上行发送载波。其二基站经过长期的能量检测或载波感知选择，得到一个候选载波集合SetB，这个载波集合即为上行载波调度集合为SetC。
或者，基站也可以根据当前的各个载波负载或干扰等状况，在集合SetB中再进行载波筛选，选择其中的一个或多个载波作为调度载波。设基站发送的上行载波调度集合为SetC，SetC包含N3个非授权载波。其中，N3<＝N2。
调度上行载波的数量N3可以大于等于CUL，也可以小于CUL。一般情况下，为增加UE上行发送机会和提高系统性能，优选调度上行载波的数量 N3大于等于UE上行CA能力。除非基站初始可用的非授权载波数量就比较少、或大部分载波负载或干扰较重，N3才会小于CUL。
为了降低发送上行调度许可的下行信令开销，可以对被调度的各个上行载波的调度许可参数作出限制。上行调度许可参数可以包括时频资源分配、和/或跳频、和/或调制和编码方案、和/或冗余版本、调度PUSCH的TPC命令等。
例如，可以限制上行载波调度集合中的几个或全部非授权载波使用相同的调度参数，网络侧使用一个调度信令或控制信令为所述UE调度一个或多个非授权上行载波。例如，调度集合中所有非授权载波使用相同的调度参数，如时频资源分配、调制和编码方案等。这样基站调度时，只需要把被调度的载波序号、以及一套共用的调度参数发送给UE。又如，调度集合中几个非授权载波使用相同的调度参数，集合中另外几个非授权载波使用另外的相同调度参数，这样，基站调度时，只需要把被调度的载波序号、和相应的共用的调度参数发送给UE。这种情况下调度参数一共只有两套。基站在对调度集合中载波调度参数作出限制时，应该优先考虑限制负载状况类似、或干扰状况类似、或调度情况类似的载波使用相同的调度参数。这种方法下行信令开销就会大大节省。
步骤三，UE接收到基站调度许可后，对上行载波调度集合中的非授权载波进行侦听，选择一个或多个载波作为上行发送载波。选择的上行发送载波数量需要小于等于UE的上行CA聚合能力。
UE接收到基站调度许可后，对上行载波调度集合SetC中的各个载波进行侦听，发现有N4个非授权载波空闲。
如果N4＝0，即当前无空闲载波可用，UE可以继续执行LBT或CCA，直到发现可用空闲载波。或者，UE可以继续执行LBT或CCA，当超过预设的定时Ttimer，仍然没有侦听到空闲载波，UE可以重新发起上行调度请求， 或重新发起RACH流程。
如果0<N4<＝CUL，即空闲载波数量在UE上行聚合能力范围内，UE可以在这N4个载波上，按照基站发送的上行调度许可参数，同时发送PUSCH或其他信号/信道。
如果N4>CUL，即空闲载波数量大于UE上行聚合能力，UE可以随机的选择其中CUL个载波(或小于CUL个载波)作为自己的上行发送载波。或者，UE根据当前或之前的RRM测量结果、或CSI测量结果，如RSSI测量结果，来选择其中一个或几个(需要小于等于CUL)非授权载波作为上行发送载波。
另外，由于UE上行发送需要遵循上下行定时关系，在UE侦听到存在空闲载波后到上行数据发送存在延时，这段时间UE需要在上述选择的空闲载波上发送预留信号来保留信道。预留信号可以为参考信号、控制信道、或控制/广播信息。
示例二
基站调度的上行载波数小于等于UE上行CA聚合能力，也即小于等于UE能聚合发送PUSCH的最大载波数。另外，基站指示UE进行侦听可能用于上行发送的候选上行载波集合。候选上行载波集合可以大于UE上行CA聚合能力，也即可以大于调度的上行载波数量。
由于基站仅会发送调度集合中载波相应的调度参数，如果UE检测到调度载波都不可用，UE就会检测候选上行载波集合中除调度载波之外的载波，但是并不清楚在这些候选载波上如何进行时频资源发送、或调制编码。因此，基站和UE之间需要对候选上行载波集合中载波的调度参数作出限制，包括基站与UE之间信息交互来达成握手、或硬性规定来约定。
例如，可以限制候选上行载波集合中载波与上行载波调度集合中载波使用相同的调度参数，或者，候选上行载波集合中一个或多个载波与上行 载波调度集合中一个或多个载波使用的调度参数相同。
UE接收到基站调度许可、和/或候选上行载波集合后，对调度集合或候选上行载波集合中的非授权载波进行侦听，选择一个或多个载波作为上行发送载波来同时发送。选择的上行发送载波数量需要小于等于UE的上行CA聚合能力CUL，CUL为UE能聚合发送PUSCH的最大载波数。其中，UE优选利用调度集合中的载波进行上行发送。特别的，当调度集合中空闲载波数等于上行CA能力为CUL，即使候选载波集合中另外有空闲载波，UE也仅利用调度集合中这CUL个空闲载波同时发送PUSCH。
本示例的上行载波数方法包括以下步骤：
步骤一，基站根据长期的能量检测或载波感知选择，或基站直接配置，一个或多个非授权载波作为上行发送候选载波。
例如，基站可利用的非授权载波最大数量为N1。这N1个非授权载波集合为SetA。SetA中各载波频段及数量由国家或地区规则、或运营商分配、或设备支持能力等因素决定。基站根据长期的能量检测、载波感知选择一个或多个非授权载波作为上行(或下行)发送候选载波集合SetB。SetB中包括N2个非授权载波。选择的因素可以包括SetA中各个载波的负载情况、干扰情况以及占用情况等。其中，N2<＝N1。
或者，基站可以不经过长期检测和感知，可以直接配置，将SetA中N1个非授权载波全部配置为上行发送候选载波。即N2＝N1。或者，基站可以不经过长期检测和感知，而根据当前的载波状况直接配置，将SetA中部分非授权载波配置为上行发送候选载波。即N2<N1。
步骤二，当有上行传输要求或接收到UE上行调度请求，基站发送调度许可给UE。调度的上行载波数量需要小于等于UE的上行CA聚合能力。另外，基站指示UE进行侦听可能用于上行发送的候选载波集合。候选上行载波集合可以大于UE上行CA聚合能力，也即可以大于调度的上行载波数 量。
假设UE下行CA能力为CDL，上行CA能力为CUL。并设基站发送的上行载波调度集合为SetC(基站不会直接发送调度集合SetC，基站发送的是上行调度许可，上行调度许可中这些被调度的载波可以组成SetC)，SetC包含N3个非授权载波。其中，N3<＝CUL。这N3个载波可以在SetB中N2载波中选择。
假设基站发送的用于指示UE进行侦听可能用于上行发送的候选上行载波集合为SetD，SetD可以等于SetB。也就是说，步骤一产生的载波集合SetB即为这里发送给UE的候选上行载波集合为SetD。
或者，基站也可以根据当前的各个载波负载或干扰等状况，在集合SetB中再进行载波筛选，选择其中的一个或多个载波作为候选上行载波集合SetD。
候选上行载波集合SetD可以包含上行载波调度集合SetC中的载波。或者，为了节省信令开销，候选上行载波集合SetD可以不包括上行载波调度集合SetC中的载波，仅包括除SetC集合之外的载波。优选的，候选上行载波集合SetD可以包括上行载波调度集合SetC中的载波。此时，SetD集合中的载波数量一般要大于等于SetC集合中的载波数量。
基站可以同时发送上行调度许可和候选上行载波集合。两者发送也可存在一定延时，上行调度许可可以在后者之前发送，也可以在后者之后发送。
由于基站仅会发送调度集合SetC中载波相应的调度参数，如果UE检测到SetC中载波都不可用或可用载波数小于UL CA能力，UE就会检测SetD中除SetC之外的载波，但是并不清楚在这些候选载波上如何进行时频资源发送、或调制编码。因此，基站和UE之间需要对候选上行载波集合中载波的调度参数作出限制，包括基站与UE之间信息交互来达成握手、或硬 性规定来约定。
例如，可以限制候选上行载波集合SetD中载波与上行载波调度集合SetC中载波使用相同的调度参数，又如，候选上行载波集合SetD中一个或多个载波与上行载波调度集合SetC中一个或多个载波使用的调度参数相同。这样，需要明确两个集合中一个或多个使用相同调度参数的载波之间的对应关系。如果UE选择SetD中的载波进行上行发送，无论该载波是否在调度集合SetC中，都选择和SetC中载波同样的调度参数进行上行发送。上行调度参数可以包括时频资源分配、和/或跳频、和/或调制和编码方案、和/或冗余版本、和/或调度PUSCH的TPC命令等。
基站在对两个集合中载波调度参数作出限制时，应该优先考虑限制负载状况类似、或干扰状况类似、或调度情况类似的载波使用相同的调度参数。这种方法下行信令开销就会大大节省。如果调度集合中所有载波都使用相同的调度参数，则基站可以不用把使用相同调度参数的载波映射关系发送给UE。如果调度集合中载波之间存在不同的调度参数，则基站需要把使用相同调度参数的载波映射关系发送给UE。
例如，UE上行CA能力为CUL＝2，上行载波调度集合SetC＝{CC1，CC2}，候选上行载波集合SetD＝{CC1，CC2，CC3，CC4，CC5}。如果UE检测到SetC中2个载波都不可用，UE就会检测SetD中除SetC之外的载波CC3、CC4、CC5，但是并不清楚在这些候选载波上如何进行时频资源发送、或调制编码。如果限制SetC中各个载波使用相同的调度参数，则SetD中各个载波也使用与SetC中载波相同的调度参数；如果SetC中各个载波使用不同的调度参数，则基站需要把使用相同调度参数的载波映射关系发送给UE，例如采用如下的发送方式来发送候选上行载波集合SetD＝{CC1:CC3,CC4；CC2:CC5}。括弧里表示CC1和CC2为被基站调度载波，CC3和CC4为CC1的候选载波，采用与CC1相同的调度参数。CC5为CC2的候选载波， 采用与CC2相同的调度参数。
此外，基站利用同一载波调度两个或两个以上UE同时进行上行发送时，两个UE调度参数中的资源序号及对应资源位置会不同。例如，调度CC1为UE1和UE2的上行发送载波，UE1和UE2在CC1上的时频资源不会重叠。但是基站分别调度CC1、CC2作为UE1和UE2的上行发送载波时，由于CC1和CC2是不同的载波，UE1和UE2可以使用不同载波中的相同或部分重叠位置的资源块，也就是调度参数中的资源块参数值有可能重叠。当CC1和CC2都不可用，空闲载波CC3为这两个调度载波的候选载波，如果UE1和UE2都使用CC3作为上行发送载波，UE1会使用CC1的调度参数，UE2会使用CC2的调度参数，这两个调度参数同时映射到CC3上就会导致资源重叠，两个UE在CC3上发送时就可能发送碰撞。这个问题有两个解决方法：第一个方法是两个UE竞争时使用回退窗，也就是两个UE不会同时发送，后发送的UE如果发现资源被占用就延迟发送。第二个办法是，当不同调度载波的调度参数尤其是时频资源参数相同和重叠时，避免同一候选载波使用这几个不同调度载波的调度参数。
步骤三，UE接收到基站调度许可、和/或候选上行载波集合后，对调度集合或候选上行载波集合中的非授权载波进行侦听，选择一个或多个载波作为上行发送载波。选择的上行发送载波数量需要小于等于UE的上行CA聚合能力。
UE接收到基站调度许可、和/或候选上行载波集合后，对上行载波调度集合SetC中和候选上行载波集合SetD中的各个载波进行侦听，发现有N4个非授权载波空闲。
如果N4＝0，即两个集合中当前都无空闲载波可用，UE可以继续执行LBT或CCA，直到发现可用空闲载波。或者，UE可以继续执行LBT或CCA，当超过预设的定时Ttimer，仍然没有侦听到空闲载波，UE可以重新发起上行 调度请求，或重新发起RACH流程。
如果N4>0，且上行载波调度集合SetC中有空闲载波可用，则优选利用SetC中的载波进行上行发送。特别的，当SetC中空闲载波数等于上行CA能力为CUL，即使SetD中有空闲载波，UE也仅利用SetC中这CUL个空闲载波同时发送PUSCH。特别的，当SetC中空闲载波数小于上行CA能力为CUL，UE可以仅利用SetC中空闲载波同时发送PUSCH，也可以另外再聚合SetD中的空闲载波来同时发送PUSCH。但是两个集合中同时发送PUSCH的载波数需要小于等于CUL。
如果N4>0，且上行载波调度集合SetC中无空闲载波可用，UE可以利用SetD中的空闲载波来同时发送PUSCH。SetD中同时发送PUSCH的载波数需要小于等于CUL。如果N4>CUL，即SetD中空闲载波数量大于UE上行聚合能力，UE可以随机的选择其中CUL个载波(或小于CUL个载波)作为自己的上行发送载波。或者，UE根据当前或之前的RRM测量结果、或CSI测量结果，如RSSI测量结果，来选择其中一个或几个(需要小于等于CUL)非授权载波作为上行发送载波。
UE如果使用非SetC集合中的载波进行上行发送，需要使用和SetC集合中一个、或多个、或全部载波相同的调度参数，包括时频资源分配、和/或跳频、和/或调制和编码方案、和/或冗余版本、调度PUSCH的TPC命令等。两个集合中一个、多个或全部使用相同调度参数的载波之间的对应关系应由基站明确、或基站和UE之间限定、或UE选择。如果是由基站侧明确调度参数与载波之间的对应关系，基站需要将两个集合中使用相同调度参数的载波之间的对应关系发送给UE；如果是基站和UE之间限定(例如由标准限定)，例如限定两个集合中所有载波都会使用相同的调度参数，则基站不需要发送对应关系指示给UE；如果是UE选择，例如UE选择候选上行载波集合SetD中D1载波进行上行发送，D1与SetC中C1载波使用相 同的调度参数，UE需要将D1与C1的对应关系发送给基站。
另外，由于UE上行发送需要遵循上下行定时关系，在UE侦听到存在空闲载波后到上行数据发送存在延时，这段时间UE需要在上述选择的空闲载波上发送预留信号来保留信道。预留信号可以为上行参考信号、上行控制信道、或控制/广播信息。
示例三
基站调度的上行载波数小于等于UE上行CA能力，也即小于等于UE能聚合发送PUSCH的最大载波数。
UE接收到基站发送的调度许可后，对基站调度的各个上行载波进行侦听。如果调度集合中可用的载波数小于UE的上行CA能力，UE会对其他非调度载波进行侦听，如果侦听到空闲载波，UE把侦听结果、空闲载波所使用调度载波参数的情况发送给基站。
由于UE上行发送需要遵循上下行定时关系，在UE侦听到存在空闲载波后到上行数据发送存在延时，这段时间UE需要在上述选择的空闲载波上发送预留信号/信道来保留信道。预留信号/信道可以为上行参考信号、或上行控制信道、或控制/广播信息。UE对非调度集合载波的侦听结果及所使用调度载波参数的情况可以通过这段时间的预留信号发送给基站，例如可以控制信息来反馈上述信息。UE也可以通过授权载波或PCell来反馈上述信息。
UE根据侦听或载波选择结果，选择其中的n个载波来发送。n<＝CUL，CUL为UE能聚合发送PUSCH的最大载波数。
图3为本发明实施例的网络侧网元的组成结构示意图，如图3所示，本发明实施例的网络侧网元包括：调度单元30和通知单元31，其中：
调度单元30，配置为为用户设备UE调度的非授权上行载波，其中，网络侧网元为用户设备UE调度非授权上行载波数量的能力大于所述UE的 上行载波聚合能力所支持的载波数量，或者，网络侧网元为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量；
通知单元31，配置为将所调度的非授权上行载波的调度参数通知所述UE。
本发明实施例中，当网络侧网元为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述通知单元31还配置为，向所述UE通知能用于上行数据传输的候选上行载波集合；将所述候选上行载波集合中的载波的调度参数通知所述UE，或者，将与为所述UE调度的非授权上行载波使用相同的调度参数的所述候选上行载波集合中载波与该为所述UE调度的非授权上行载波之间的对应关系通知所述UE；使所述UE优先从所调度的非授权上行载波中能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波；
其中，所述候选上行载波集合中的载波数量大于或者小于等于所述UE的上行载波聚合能力所支持的载波数量。
本发明实施例中，所述网络侧使用一个控制信令或调度信令为所述UE调度一个或多个非授权上行载波；所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
在图3所示的网络侧网元的基础上，本发明实施例的网络侧网元还包括：接收单元(图中未示出)和指示单元(图中未示出)，其中：
接收单元，配置为在网络侧网元为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授 权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，接收所述UE上报的所述UE侦听的非调度的其他空闲载波的调度参数；
指示单元，配置为指示所述UE从所述空闲载波中选择能用于上行数据传输的载波。
本发明实施例中，所述调度参数包括以下参数的至少一种：
时频资源分配参数、跳频、调制和编码方案、冗余版本、物理上行共享信道PUSCH的发射功率控制TPC命令。
本发明实施例中，网络侧网元包括基站、基站控制器、移动管理单元(MME，Mobility Management Entity)等网络侧设备。
本领域技术人员应当理解，图3所示的网络侧网元中的各处理单元的实现功能可参照前述上行载波选择方法的各实施例的相关描述而理解。图3所示的网络侧网元中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
图4为本发明实施例的用户设备的组成结构示意图，如图4所示，本发明实施例的用户设备包括：接收单元40和选择单元41，其中：
接收单元40，配置为接收网络侧为所述用户设备调度的非授权上行载波的调度参数；
选择单元41，配置为从所通知的非授权上行载波中选择能用于上行数据传输的载波；其中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
本发明实施例中，网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量时，所述选择单元41从所通知的非授权上行载波中选择能用于上行数据传输的载波数量小于 等于所述用户设备的上行载波聚合能力所支持的载波数量。
本发明实施例中，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述接收单元40，还配置为接收所述网络侧发送的能用于上行数据传输的候选上行载波集合，以及所述候选上行载波集合中的载波的调度参数；
对应地，所述选择单元41，还配置为根据调度参数优先从所调度的非授权上行载波中能用于上行数据传输的载波，所选择的上下载波小于所述UE的上行载波聚合能力所支持的载波数量时，再从所述候选上行载波集合中选择能用于上行数据传输的载波；
其中，所述候选上行载波集合中的载波数量大于或者小于等于所述UE的上行载波聚合能力所支持的载波数量。
本发明实施例中，所述网络侧使用一个控制信令或调度信令为所述UE调度一个或多个非授权上行载波；所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
在图4所示的用户设备的基础上，本发明实施例的用户设备还包括：侦听单元(图中未示出)和发送单元(图中未示出)，其中：
侦听单元，配置为在网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，对非调度的其他空闲载波进行侦听；
发送单元，配置为将侦听到的空闲载波的信息、所述空闲载波的调度参数向所述网络侧发送。
本发明实施例中，在所述侦听单元侦听到所述空闲载波至所述用户设 备使用空闲载波进行上行数据传输之前，所述发送单元，还配置为在所述空闲载波上向所述网络侧发送预留信号或预留信道；所述预留信号或预留信道包括以下信息的至少之一：上行参考信号、上行控制信道、控制信息、广播信息。
本发明实施例中，所述发送单元，通过授权载波或主服务小区向所述网络侧发送所述空闲载波的信息、所述空闲载波的调度参数的信息、以及所述预留信号或预留信道。
本发明实施例中，所述调度参数包括以下参数的至少一种：
时频资源分配参数、跳频、调制和编码方案、冗余版本、物理上行共享信道PUSCH的发射功率控制TPC命令。
本发明实施例中，用户设备包括手机等设备。
本领域技术人员应当理解，图4所示的用户设备中的各处理单元的实现功能可参照前述上行载波选择方法的各实施例的相关描述而理解。图4所示的用户设备中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
本发明实施例还记载了一种存储介质，所述存储介质中存储有计算机程序，所述计算机程序配置为执行前述各实施例的上行载波选择方法。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集合成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设 备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集合成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集合成在一个单元中；上述集合成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。
工业实用性
本发明中，在网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量的情况下，当UE不能从所调度的非授权上行载波中选择出能用于上行数据传输的载波时，UE将从网络侧通知的候选载波集合中选择用于上行数据传输的载波，或者，从当前侦听的空闲载波中选择用于上行数据传输的载波，以提升UE的上行数据发送效率，以使UE选择尽可能多的上行载波进行上行数据传输。

Claims (28)

  1. 一种上行载波选择方法，所述方法包括：
    网络侧为用户设备UE调度非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量；
    将所调度的非授权上行载波的调度参数通知所述UE。
  2. 根据权利要求1所述的上行载波选择方法，其中，所述网络侧使用一个控制信令为所述UE调度一个或多个非授权上行载波。
  3. 根据权利要求1所述的上行载波选择方法，其中，所述网络侧为所述UE调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述网络侧还向所述UE通知能用于上行数据传输的候选上行载波集合。
  4. 根据权利要求3所述的上行载波选择方法，其中，所述网络侧还将所述候选上行载波集合中的载波的调度参数通知所述UE；
    或者，所述网络侧还将与为所述UE调度的非授权上行载波使用相同的调度参数的所述候选上行载波集合中载波与该为所述UE调度的非授权上行载波之间的对应关系通知所述UE。
  5. 根据权利要求4所述的上行载波选择方法，其中，所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
  6. 根据权利要求1所述的上行载波选择方法，其中，所述网络侧为所述UE调度非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所 述UE的上行载波聚合能力时，接收所述UE上报的所述UE侦听的非调度的其他空闲载波的侦听结果、和/或所使用载波的参数情况。
  7. 根据权利要求1至6任一项所述的上行载波选择方法，其中，所述调度参数包括以下参数的至少一种：
    时频资源分配参数、跳频、调制和编码方案、冗余版本、物理上行共享信道PUSCH的发射功率控制TPC命令。
  8. 一种上行载波选择方法，所述方法包括：
    用户设备UE接收网络侧为所述UE调度的非授权上行载波的调度参数，所述UE从所通知的非授权上行载波中选择能用于上行数据传输的载波；其中，网络侧为UE调度的非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
  9. 根据权利要求8所述的上行载波选择方法，其中，所述网络侧使用一个控制信令为所述UE调度一个或多个非授权上行载波。
  10. 根据权利要求8所述的上行载波选择方法，其中，网络侧为UE调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述UE还接收所述网络侧发送的能用于上行数据传输的候选上行载波集合。
  11. 根据权利要求10所述的上行载波选择方法，其中，
    所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
  12. 根据权利要求8所述的上行载波选择方法，其中，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚 合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，所述UE对非调度的其他空闲载波进行侦听，并将侦听到的空闲载波的信息、所述空闲载波的调度参数向所述网络侧发送。
  13. 根据权利要求12所述的上行载波选择方法，其中，在所述UE侦听到所述空闲载波至所述UE使用空闲载波进行上行数据传输之前，所述方法还包括：
    所述UE在所述空闲载波上向所述网络侧发送预留信号或预留信道；所述预留信号或预留信道包括以下信息的至少之一：上行参考信号、上行控制信道、控制信息、广播信息。
  14. 根据权利要求12所述的上行载波选择方法，其中，所述UE通过授权载波或主服务小区向所述网络侧发送所述空闲载波的信息、所述空闲载波的调度参数的信息、以及所述预留信号或预留信道。
  15. 一种网络侧网元，所述网元包括：调度单元和通知单元，其中：
    调度单元，配置为为用户设备UE调度的非授权上行载波，其中，网络侧网元为UE调度的非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧网元为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量；
    通知单元，配置为将所调度的非授权上行载波的调度参数通知所述UE。
  16. 根据权利要求15所述的网元，其中，所述调度单元使用一个控制信令为所述UE调度一个或多个非授权上行载波。
  17. 根据权利要求15所述的网元，其中，所述网络侧网元为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能 力所支持的载波数量时，所述通知单元还配置为，向所述UE通知能用于上行数据传输的候选上行载波集合。
  18. 根据权利要求17所述的网元，其中，所述通知单元还配置为，将所述候选上行载波集合中的载波的调度参数通知所述UE；
    或者，还将与为所述UE调度的非授权上行载波使用相同的调度参数的所述候选上行载波集合中载波与该为所述UE调度的非授权上行载波之间的对应关系通知所述UE。
  19. 根据权利要求18所述的网元，其中，所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
  20. 根据权利要求15所述的网元，其中，所述网元还包括：接收单元和指示单元，其中：
    接收单元，配置为在网络侧网元为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，接收所述UE上报的所述UE侦听的非调度的其他空闲载波的调度参数；
    指示单元，配置为指示所述UE从所述空闲载波中选择能用于上行数据传输的载波。
  21. 一种用户设备，所述用户设备包括：接收单元和选择单元，其中：
    接收单元，配置为接收网络侧为所述用户设备调度的非授权上行载波的调度参数；
    选择单元，配置为从所通知的非授权上行载波中选择能用于上行数据传输的载波；其中，网络侧为用户设备UE调度的非授权上行载波数量的能力大于所述UE的上行载波聚合能力所支持的载波数量，或者，网络侧为 UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量。
  22. 根据权利要求21所述的用户设备，其中，所述网络侧使用一个控制信令为所述UE调度一个或多个非授权上行载波。
  23. 根据权利要求21所述的用户设备，其中，网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量时，所述接收单元，还配置为接收所述网络侧发送的能用于上行数据传输的候选上行载波集合。
  24. 根据权利要求23所述的用户设备，其中，所述候选上行载波集合中载波的调度参数与所调度的非授权上行载波的调度参数相同，或者，所述候选上行载波集合中一个或多个载波的调度参数与所调度的一个或多个非授权上行载波的调度参数相同。
  25. 根据权利要求21所述的用户设备，其中，所述用户设备还包括：侦听单元和发送单元，其中：
    侦听单元，配置为在网络侧为UE调度所调度的非授权上行载波数量的能力小于等于所述UE的上行载波聚合能力所支持的载波数量，且所调度的非授权上行载波中可用载波数量小于所述UE的上行载波聚合能力时，，对非调度的其他空闲载波进行侦听；
    发送单元，配置为将侦听到的空闲载波的信息、所述空闲载波的调度参数向所述网络侧发送。
  26. 根据权利要求25所述的用户设备，其中，在所述侦听单元侦听到所述空闲载波至所述用户设备使用空闲载波进行上行数据传输之前，所述发送单元，还配置为在所述空闲载波上向所述网络侧发送预留信号或预留信道；所述预留信号或预留信道包括以下信息的至少之一：上行参考信号、上行控制信道、控制信息、广播信息。
  27. 根据权利要求26所述的用户设备，其中，所述发送单元，通过授权载波或主服务小区向所述网络侧发送所述空闲载波的信息、所述空闲载波的调度参数的信息、以及所述预留信号或预留信道。
  28. 一种存储介质，所述存储介质中存储有计算机程序，所述计算机程序配置为执行权利要求1至14任一项所述的上行载波选择方法。
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