WO2019214544A1 - 电子装置、无线通信方法和计算机可读介质 - Google Patents

电子装置、无线通信方法和计算机可读介质 Download PDF

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Publication number
WO2019214544A1
WO2019214544A1 PCT/CN2019/085496 CN2019085496W WO2019214544A1 WO 2019214544 A1 WO2019214544 A1 WO 2019214544A1 CN 2019085496 W CN2019085496 W CN 2019085496W WO 2019214544 A1 WO2019214544 A1 WO 2019214544A1
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Prior art keywords
user equipment
resource
unlicensed band
unlicensed
electronic device
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PCT/CN2019/085496
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English (en)
French (fr)
Inventor
许晓东
孙梦颖
陈冠宇
张文博
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索尼公司
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Application filed by 索尼公司 filed Critical 索尼公司
Priority to CN201980007581.2A priority Critical patent/CN111684849B/zh
Priority to US16/962,852 priority patent/US20200351669A1/en
Priority to EP19800502.7A priority patent/EP3783980A4/en
Publication of WO2019214544A1 publication Critical patent/WO2019214544A1/zh
Priority to US17/715,951 priority patent/US11638161B2/en
Priority to US18/120,443 priority patent/US11943633B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • 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 signaling, i.e. of overhead other than pilot signals
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • 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
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present disclosure relates generally to the field of wireless communications, and more particularly to electronic devices, wireless communication methods, and computer readable media for wireless communication.
  • Proximity service in LTE is mainly divided into device-to-device (D2D) discovery and D2D communication.
  • D2D device-to-device
  • the UE-to-Network Relay is used in the LTE Rel-13, that is, the user equipment is used as a relay to provide services to the edge user equipment, thereby improving the performance of the edge user equipment.
  • the relay user equipment (relay UE) or the relayed user equipment (remote UE) is assigned by a specific radio resource control (RRC) message or obtains a licensed frequency band resource from the system information. Perform communication and discovery processes.
  • RRC radio resource control
  • an electronic device for wireless communication includes processing circuitry.
  • the processing circuit is configured to: determine whether the first user equipment satisfies a condition for performing the through link communication with the second user equipment by using the unlicensed band resource; and, if the condition is satisfied, controlling the first user equipment to utilize the unlicensed band The resource performs a through link communication with the second user equipment.
  • a method of wireless communication includes: determining whether a first user equipment satisfies a condition for performing a through link communication with a second user equipment using an unlicensed band resource; and if the condition is satisfied, controlling A user equipment utilizes unlicensed band resources for direct link communication with the second user equipment.
  • an electronic device for wireless communication includes a processing circuit.
  • the processing circuit is configured to: control the first user equipment to perform the through link communication with the second user equipment using the unlicensed band resource; and perform control to indicate the maximum channel occupation time of the unlicensed band resource occupied by the first user equipment ( The information of the MCOT is sent to the second user equipment to share the MCOT with the second user equipment.
  • a wireless communication method includes: controlling a first user equipment to perform a through link communication with a second user equipment by using an unlicensed frequency band resource; and an MCOT indicating an unlicensed frequency band resource occupied by the first user equipment The information is sent to the second user equipment to share the MCOT with the second user equipment.
  • an electronic device for wireless communication includes processing circuitry.
  • the processing circuit is configured to: control to transmit indication information to the user equipment, wherein the indication information indicates an acquisition manner of the unlicensed band resource for the through link communication of the user equipment, or the indication information indicates the unlicensed band resource.
  • a method for wireless communication includes: transmitting indication information to a user equipment, wherein the indication information indicates an acquisition manner of an unlicensed frequency band resource for a through link communication of the user equipment, or the indication information indicates an unlicensed frequency band. Resources.
  • a computer readable medium comprising executable instructions that, when executed by an information processing device, cause an information processing device to perform the method according to the above embodiments.
  • the embodiments of the present invention enable non-authorized resources to be used on a side link, and by setting conditions for the UE to use unlicensed resources, the quality of service of the user can be improved, and interference to devices of non-3GPP technology can be reduced.
  • FIG. 1 is a block diagram showing a configuration example of an electronic device for wireless communication according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing a configuration example of an electronic device for wireless communication according to another embodiment of the present invention.
  • FIG. 3 is a flowchart showing an example of a procedure of a wireless communication method according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing a configuration example of an electronic device for wireless communication according to an embodiment of the present invention.
  • FIG. 5 is a flowchart showing an example of a procedure of a wireless communication method according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing a configuration example of an electronic device for wireless communication according to an embodiment of the present invention.
  • FIG. 7 is a flowchart showing an example of a procedure of a wireless communication method according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing an exemplary structure of a computer that implements the method and apparatus of the present disclosure
  • FIG. 9 is a block diagram showing an example of a schematic configuration of a smartphone that can apply the technology of the present disclosure
  • FIG. 10 is a block diagram showing an example of a schematic configuration of a base station to which the technology of the present disclosure can be applied;
  • FIGS. 11A through 11C are schematic diagrams for explaining an example of an application scenario of an embodiment of the present disclosure.
  • Figure 12 illustrates an unauthorized resource usage flow in an example embodiment
  • FIG. 13 illustrates an unauthorized resource configuration flow in an exemplary embodiment
  • FIG. 14 illustrates an unauthorized resource configuration flow in an exemplary embodiment
  • Figure 15 illustrates an unauthorized resource usage flow in an example embodiment
  • Figure 16 illustrates an unauthorized resource usage flow in an example embodiment
  • Figure 17 illustrates an unauthorized resource usage flow in an example embodiment
  • FIG. 18 illustrates an unauthorized resource configuration flow in an exemplary embodiment
  • FIG. 19 illustrates an unauthorized resource configuration flow in an exemplary embodiment
  • Figure 20 illustrates an unauthorized resource usage flow in an example embodiment
  • Figure 21 illustrates an unauthorized resource usage flow in an example embodiment
  • FIG. 22 shows an unauthorized resource configuration flow in an exemplary embodiment
  • FIG. 23 shows an unauthorized resource configuration flow in an exemplary embodiment
  • FIG. 24 shows an unauthorized resource configuration flow in an exemplary embodiment
  • 25 is a schematic diagram for explaining area-based unauthorized resource selection
  • Figure 26 illustrates an unauthorized resource usage flow in an example embodiment
  • FIG. 27 shows an example flow of MCOT sharing in an exemplary embodiment
  • FIG. 28 shows an example flow of MCOT sharing in an exemplary embodiment
  • FIG. 29 illustrates an example flow of MCOT sharing in an example embodiment
  • FIG. 30 shows an example flow of MCOT sharing in an example embodiment.
  • an electronic device 100 for wireless communication includes a processing circuit 110.
  • the processing circuit 110 can be implemented, for example, as a specific chip, a chipset, or a central processing unit (CPU) or the like.
  • the processing circuit 110 includes a determining unit 111 and a control unit 113. It should be noted that although the determination unit 111 and the control unit 113 are shown in the form of functional blocks in the drawings, it should be understood that the functions of the units may also be implemented by the processing circuit as a whole, and not necessarily through the processing circuit. The actual components are separated and implemented. In addition, although the processing circuit is shown in a block in the figure, the electronic device may include a plurality of parallel circuits, and the functions of the respective units may be distributed into the plurality of processing circuits, thereby being executed by the plurality of processing circuits in cooperation. these functions.
  • the determining unit 111 is configured to determine whether the first user equipment satisfies a condition for performing a through link communication with the second user equipment using the unlicensed band resource.
  • the condition is related to one or more of the following aspects: a service priority of the through link communication to be performed; a current link quality between the first user equipment and the second user equipment; The number of failures of carrier sensing previously performed by a user equipment and/or the second user equipment for unlicensed band resources; the remaining power of the first user equipment and/or the second user equipment; and the base station is to be The delay in the process of generating, by the relay UE in the second user equipment, the information of the remote UE in the first user equipment and the second user equipment is sent to the relay UE in the first user equipment and the second user equipment.
  • the service priority may include a short-range service data packet priority PPPP; the link quality may include a reference signal received power RSRP; the number of failures may include a carrier sense failure within a time window of a previous predetermined length The number of subframes; the delay may include a delay caused by the base station performing carrier sense (LBT) on the unlicensed band resources used to transmit the information.
  • LBT carrier sense
  • the LBT operation needs to be performed before the UE uses the unlicensed sub-resource.
  • the execution of the LBT increases the energy consumption of the UE, and may also increase the delay due to the LBT failure.
  • the conditions for the relay UE or the remote UE to use the unlicensed resource may include:
  • the relay UE or the remote UE directly selects the authorized resource; otherwise, the UE is allowed to select the unlicensed resource.
  • the relay UE or the remote UE directly uses the authorized resource.
  • the relay UE or the remote UE directly selects the authorized resource.
  • the relay UE or the remote UE directly uses the authorized resource.
  • the eNB uses the unlicensed resource to send the sidelink-related data to the relay UE, if the delay caused by the eNB performing the LBT failure is greater than the threshold, the eNB notifies the relay UE to directly use the authorized resource, and the relay UE directly selects the authorized resource to avoid Excessive delays occur throughout the forwarding process.
  • the control unit 113 is configured to control the first user equipment to perform the through link communication with the second user equipment using the unlicensed band resource if the determining unit 111 determines that the above condition is satisfied.
  • 11A to 11C illustrate a scenario in which an unlicensed band is used in FeD2D (further enhanced D2D) as an application example of an embodiment of the present invention.
  • both the relay UE and the remote UE are in an in-coverage (IC) state, and the remote UE can use unauthorized resources in the sidelink communication and discovery process.
  • IC in-coverage
  • both the relay UE and the remote UE are in an IC state, the relay UE can use an unlicensed resource in the sidelink communication and discovery process, and the remote UE can use the non-authorization in the sidelink communication and discovery process. Resources.
  • the relay UE is in the IC state
  • the remote UE is in the out-of-coverage (OOC) state
  • the relay UE can use the unlicensed resource in the sidelink communication and discovery process
  • the remote UE can communicate in the sidelink.
  • the discovery process uses unauthorized resources.
  • the embodiment of the invention relates to configuring the relay UE and the remote UE to perform sidelink communication by using the unlicensed frequency band for different scenarios and different states in which the UE is located.
  • the allocation manner of the resource may include, for example, an eNB direct allocation mode, an eNB in-direct allocation mode, a relay UE assisted allocation mode, and a UE autonomous manner.
  • the UE autonomous allocation mode and the shared MCOT (Shared MCOT) mode are separately described with respect to the above aspects.
  • the unlicensed band resources for the through link communication described in the embodiments of the present invention may include unlicensed band resources for the through link communication, and may also include unlicensed band resources for the through link discovery. .
  • the determining unit 111 is further configured to determine, according to the indication information from the base station, an acquisition manner of the unlicensed frequency band resource, where the obtaining manner may include: specifying, by the base station, the unlicensed frequency band resource; or by the user equipment in the configured resource pool Or select an unlicensed band resource in the resource pool list.
  • the indication information may be included, for example, in radio resource control RRC signaling.
  • the configured resource pool or resource pool list may be indicated by, for example, RRC signaling or a System Information Block (SIB).
  • SIB System Information Block
  • the determining unit 111 is further configured to determine an unlicensed band resource for the through link communication based on the indication information from the base station.
  • the indication information may be sent through a physical downlink control channel PDCCH.
  • resource pool information for through link discovery can be obtained through RRC signaling and SIB.
  • the signaling configuration from the base station is, for example, RRC ⁇ sl-commconfig ⁇ commTxResources ⁇ scheduled.
  • the relay UE or the remote UE can obtain the DCI format 5 through the blind detection PDCCH, thereby obtaining the resources used for transmitting the PSCCH and the PSSCH on the sidelink.
  • the process of using unauthorized resources in this case is shown in Figure 12:
  • the relay UE or the remote UE acquires the configuration of the unlicensed resource by monitoring the PDCCH DCI 5B.
  • the relay UE or the remote UE performs LBT access to the unauthorized resource
  • the relay UE or the remote UE If the number of times the relay UE or the remote UE fails to access the assigned unlicensed resource fails to be greater than the threshold, the relay UE or the remote UE directly requests the authorized resource to perform the sidelink communication process; otherwise, the relay UE or the remote UE occupies the unlicensed band. Communication process.
  • a new field can be added in the RRC: SLUnlicensed, see Table 1.
  • the fields included in the SL-ConfigUnli IE can be, for example, as shown in Table 2 below.
  • the relay UE or the remote UE can obtain the configuration of the unlicensed resource by, for example, monitoring the PDCCH DCI format 5B.
  • the SCI format 0A field may be added in the PDCCH DCI format 5B to indicate the configuration of the unlicensed resource pool of communication data on the sidelink.
  • PSCCH SCI 0A ⁇ 2A and PDCCH DCI 5B ⁇ 5C may be added.
  • the SCI 0A is used to indicate the configuration of the unlicensed resource pool.
  • the SCI 0A is based on the SCI 0.
  • the newly added field is used to indicate the configuration of the unlicensed resource used by the PSSCH, including the carrier indication and the start and stop symbols. Symbol), as well as the channel access type and channel access priority class.
  • the SCI 2A is used to indicate the configuration of the unlicensed resource pool.
  • the field is used to indicate the configuration information of the unlicensed resource configured by the relay UE for the remote UE to transmit the PSSCH resource.
  • the newly added field of SCI2A is used to indicate the configuration of the unlicensed resources used by the PSSCH, including the carrier indication, the start and stop symbols, and the channel access type and channel access priority class.
  • the newly added PDCCH DCI 5B control signaling is sent by the eNB to the relay UE or the remote UE, indicating the transmission non-authorized resource configuration of the relay UE or the remote UE PSCCH and the PSSCH, including the SCI 0A.
  • the newly added PDCCH DCI 5C control signaling is sent by the eNB to the relay UE, including the resource that the relay UE transmits the PSCCH, and the unlicensed resource configuration used by the relay UE to indicate that the remote UE transmits the PSSCH, including the SCI 2A.
  • the eNB can configure the unlicensed resource pool in a dynamic manner or a semi-static manner.
  • the eNB dynamically performs configuration of the unlicensed resource pool for the relay UE and the remote UE through the PDCCH DCI 5B signaling.
  • the eNB informs the relay UE or the remote UE through RRC signaling that the scheduling mode of the resource is “scheduled”, and then the eNB sends the PDCCH DCI 5B (SCI 0A) to the relay UE or the remote UE.
  • the Relay UE or the remote UE performs LBT according to the configuration of the unlicensed resource, and accesses the unlicensed channel to perform the communication process.
  • the eNB performs semi-static configuration of the unlicensed resource pool to the relay UE and the remote UE through PDCCH DCI 5B signaling.
  • the eNB informs the relay UE or the remote UE through RRC signaling that the scheduling mode of the resource is “scheduled” and configures the parameters of the unlicensed semi-persistent scheduling, and then the eNB sends the PDCCH DCI 5B (SCI0A) to the relay UE or the remote UE and Activate semi-static scheduling of unauthorized resources.
  • the Relay UE or the remote UE performs LBT according to the configuration of the unlicensed resource, and accesses the unlicensed channel to perform the communication process.
  • a new field can be added in the RRC: SLUnlicensed, sl-subframeUnli, see Table 1.
  • the above describes an exemplary implementation manner in which the unlicensed resource is obtained by the base station, and an example embodiment in which the user equipment selects the unlicensed band resource in the configured resource pool or resource pool list is explained.
  • the signaling configuration from the base station is, for example, RRC ⁇ sl-commconfig ⁇ commTxResources ⁇ ue-selected ⁇ commTxPoolNormalDedicated or commTxPoolNormalDedicatedExt, in which case the relay UE or the remote UE can directly give Select the resource in the defined resource pool to perform the sidelink communication process.
  • the signaling configuration process of the unlicensed resource is shown in Figure 14.
  • the relay UE or the remote UE when the relay UE or the remote UE is configured to use the unlicensed resource resource pool in the RRC signaling, and the RRC signaling indicates "ue-selected", the relay UE or the remote UE selects the resource pool in the RRC resource pool list ( It can include authorized resources and non-authorized resources).
  • the relay UE or the remote UE performs the LBT operation according to the parameters configured by the RRC signaling.
  • the relay UE or the remote UE If the number of times the relay UE or the remote UE fails to access the assigned unlicensed resource fails to be greater than the threshold, the relay UE or the remote UE directly selects the authorized resource to perform the sidelink communication process in the resource pool list, otherwise the relay UE or the remote UE occupies the non- The licensed band performs the sidelink communication process.
  • the relay UE and the remote UE obtain the configuration of the unlicensed resource pool by listening to the RRC signaling, and at the same time, for example, the sidelink unlicensed resource and the channel access configuration information may be added in the PDCCH DCI 5, when the relay UE is from the RRC signaling resource pool list.
  • the unlicensed resource is selected, the condition of the unlicensed channel selection is increased before the unlicensed resource is selected, and the delay caused by accessing the unlicensed channel is reduced, and the quality of service of the UE is improved.
  • a new field can be added in the RRC: SLUnlicensed, SL-ConfigCommUnli, see Table 1.
  • Example implementations related to sidelink communication resources are described above, followed by example implementations related to sidelink discovery resources. Similar to the communication resource, the method for obtaining the resource for the sidelink discovery may also include: the unlicensed band resource is specified by the base station or the unlicensed band resource is selected by the user equipment in the configured resource pool or resource pool list.
  • the resource used by the UE to transmit the discovery may be acquired in the RRC signaling, when the RRC signaling indicates that the condition is scheduled.
  • the UE uses a specific resource to transmit the discovery; when the RRC signaling indicates ue-selected, the resource used by the UE to send the discovery is selected from a specific resource pool such as discTxPoolDedicated.
  • the relay UE or the remote UE If the relay UE or the remote UE is configured with an unlicensed resource in RRC signaling, the relay UE or the remote UE performs the LBT access to the unauthorized resource. If the LBT is successfully executed, the relay UE or remote UE occupies the unlicensed band. If the number of subframes in which the relay UE or the remote UE fails to perform the LBT reaches the threshold, the relay UE or the remote UE may apply for the resource pool to send a discovery signal, for example, by using the sidelink UEinformation.
  • Using unlicensed resources in the sidelink discovery process can increase system capacity.
  • the delay of the UE using unlicensed resources can be reduced.
  • a new field can be added in RRC: SLUnlicensed, SL-ConfigDiscUnli, see Table 1.
  • the UE selects the unlicensed band resource for sidelink discovery in the configured resource pool or resource pool list
  • the relay UE or the remote UE is in the RRC_CONNECTED state, and the RRC signaling is configured ue-selected
  • the UE is configured to be configured.
  • Select resources in the resource pool If the unconfigured resource is included in the configured resource pool, if the unlicensed resource is selected, the LBT is executed according to the parameter according to the channel access, if the relay UE or the remote UE still has no access unauthorized in the configured maximum number of subframes. Channel, then the relay UE or remote UE directly selects the higher priority authorized resource pool. If the LBT is successfully executed, the discovery is sent on the unlicensed channel.
  • the Relay UE or the Remote UE selects resources in the RRC signaling. If the unlicensed resource is selected, the Relay UE or the Remote UE performs LBT access to the unauthorized resource. If the LBT is successfully executed, the relay UE or the remote UE occupies the unlicensed channel. If the maximum number of subframes that the relay UE or the remote UE LBT fails is greater than the threshold, the relay UE or the remote UE selects the RRC signaling to select the authorized resource pool.
  • the UE selects the unlicensed resource pool in the RRC configured resource pool list to perform the discovery process. By increasing the condition of the non-authorized resource selection, the UE can effectively reduce the delay and power consumption caused by the unauthorized resource usage.
  • a field can be added in the RRC: SLUnlicensed, SL-ConfigDiscUnli, see Table 1.
  • the relay UE forwards one or more of the following information to the remote UE: information indicating unlicensed band resources for sidelink communication; and a resource pool indicating unlicensed band resources for sidelink communication Information.
  • the eNB configures the remote UE for unauthorized resource allocation.
  • the RRC signaling informs the relay UE to which the remote UE is connected, and the relay UE completely forwards the configuration information of the unlicensed resource pool to the remote UE.
  • the eNB informs the relay UE of the configuration information of the unlicensed resource pool of the remote UE by using the RRC signaling, and the relay UE forwards the configuration information of the unlicensed resource pool of the remote UE to the remote UE, for example, through the RRCResourceConfig signaling, and the remote UE according to the unlicensed resource.
  • the configuration information performs LBT operations.
  • a field can be added in the RRC: SLUnlicensed, SL-ConfigCommUnli, see Table 1.
  • the RRCResourceConfig field can be introduced (see Table 5).
  • RRCResourceConfig Relay UE forwards resource configuration information for remote UE
  • the RRC signaling configuration may be, for example, RRC ⁇ sl-commconfig ⁇ commTxResources ⁇ ue-selected ⁇ commTxPoolNormalDedicated Or commTxPoolNormalDedicatedExt
  • the eNB notifies the remote UE unlicensed resource configuration to the relay UE to which the remote UE is connected by using RRC signaling.
  • the relay UE completely forwards the configuration information of the unlicensed resource pool to the remote UE.
  • the resource pool list (including authorized resources and unlicensed resources) may be configured in the RRC signaling of the relay UE.
  • the eNB sends the configuration information of the unlicensed resource pool of the remote UE to the relay UE through the RRC signaling; the Relay UE forwards the configuration information of the remote UE unauthorised resource pool to the remote through the RRCResourceConfig signaling. If the remote UE selects an unlicensed resource pool according to the configuration of the resource pool, the remote UE performs the LBT to access the unlicensed resource.
  • the remote UE can obtain the resource by the relay UE, and the configuration of the unlicensed resource can be configured in the RRC signaling of the relay UE. After the relay UE obtains the resource configuration information of the remote UE, the configuration information is configured. The remote UE can be completely forwarded to the remote UE, and the remote UE can obtain the configuration of the unlicensed resource to access the unlicensed channel according to the configuration information forwarded by the relay UE.
  • a field can be added in the RRC: SLUnlicensed, SL-ConfigCommUnli, see Table 1.
  • the RRCResourceConfig field can be introduced (see Table 5).
  • 20 and 21 illustrate an unauthorized resource usage flow for a remote UE in an exemplary embodiment.
  • the LBT is performed according to the used parameter of the configured unauthorized resource. If the cumulative number of failures of the remote UE to access the assigned unlicensed resource is greater than the threshold, the remote UE directly requests the authorized resource for the sidelink communication process. Otherwise, the remote UE occupies the unlicensed band for communication.
  • the remote UE in the case that the remote UE is configured with the unlicensed resource list, when the remote UE selects the unlicensed resource in the unlicensed resource pool list, the LBT is executed according to the configured non-authorized resource usage parameter. If the cumulative number of failures of the remote UE to access the assigned unlicensed resource is greater than the threshold, the remote UE directly selects the authorized resource for the sidelink communication process. Otherwise, the remote UE occupies the unlicensed band for communication.
  • the relay UE receives information indicating an unlicensed band resource for sidelink communication from the base station, and notifies the remote UE of the indicated unlicensed band resource.
  • the relay UE may receive information indicating a resource pool of the unlicensed band resource used for sidelink communication from the base station, select an unlicensed band resource for the sidelink communication for the remote UE, and notify the remote unselected band resource to the remote UE.
  • the relay UE can make this notification through a physical pass-through link control channel (PSCCH).
  • PSCCH physical pass-through link control channel
  • the eNB may notify the relay UE to which the remote UE is connected by RRC signaling by using the remote UE unlicensed resource configuration (ue-selected or scheduled). If the RRC signaling indication is ue-selected, the relay UE may select the resource in the resource pool for the remote UE, and indicate the configuration of the unauthorized resource of the remote UE sidelink communication process through the PSCCH SCI 2A. If the RRC signaling indicates scheduled, and the scheduled resource is an unlicensed resource, the relay UE may indicate, by the PSCCH SCI 2A, for example, the configuration of the unauthorized UE sidelink communication process unauthorized resource. The Remote UE performs LBT according to the configuration information and accesses the unlicensed band. The configuration process is shown in Figure 22.
  • the relay UE acquires the configuration information of the unlicensed resource in the RRC signaling by the auxiliary remote UE, and assigns the remote UE to the remote UE through the PSCCH.
  • the remote UE directly performs the LBT, and if the PSSCH is occupied after the channel is occupied, the PSCCH does not need to be sent. Therefore, the signaling overhead and energy consumption of the remote UE can be saved.
  • the fields SLUnlicensed, SL-ConfigCommUnli (see Table 1) and SCI 2A sidelink control information (see Table 4) may be added in the RRC.
  • the relay UE may notify the remote UE of the unlicensed band resources that have been configured for the relay UE.
  • the relay UE may configure according to its own unauthorized resource pool. Unauthorized resources are configured for the remote UE.
  • the Relay UE may indicate the configuration of the unauthorized resource of the remote UE sidelink communication process by, for example, PSCCH SCI 0.
  • the Remote UE performs LBT according to the configuration information and accesses the unlicensed band. The configuration process is shown in Figure 23.
  • the relay UE shares the unauthorised resources that have been configured to the remote UE, and assigns them to the remote UE through the PSCCH.
  • the remote UE directly performs the LBT. If the PSSCH is occupied after the channel is occupied, the PSCCH does not need to be sent. Therefore, the signaling overhead and energy consumption of the remote UE can be saved, and the signaling overhead of applying for the sidelink resource to the base station is saved.
  • the field SLUnlicensed, SL-ConfigCommUnli may be added in the RRC, and the SCI 2A sidelink control information may be added (see Table 4).
  • the relay UE may perform LBT for the unlicensed band resources to be allocated to the remote UE, and notify the remote UE of the unlicensed channel that is successfully accessed.
  • the relay UE may perform the LBT for the remote UE and then access the unlicensed channel, and indicate to the remote, for example, through the PSCCH SCI 2A. UE.
  • the remote UE can perform type2LBT or not perform LBT when accessing the unlicensed channel.
  • the configuration process is shown in Figure 24.
  • the uplink data transmission and the downlink data transmission channel use the unlicensed frequency band in the form of dynamic scheduling.
  • the LBT operation is performed, and the standard specifies at least the idle channel assessment (CCA) detection. That is, energy detection, when detecting that the energy of the unlicensed band exceeds the threshold, indicates that the unlicensed channel is already occupied.
  • CCA idle channel assessment
  • LBT There are currently four types of LBT: CAT1 LBT, that is, LBT is not executed; CAT2 LBT, that is, LBT is executed, and random backoff is not performed; CAT3 LBT, that is, LBT is executed, and the size of the back-off competition window is fixed; CAT4 LBT, that is, LBT is executed, The size of the retreat window is variable.
  • the 3GPP standard specifies two types of uplink unlicensed channel access types: type1, that is, CAT4 LBT, LBT parameters are configured according to the channel access priority class; type2, that is, 25us LBT operation is performed.
  • the relay UE When the relay UE configures the unauthorized information for the reomte UE, the relay UE assists the remote UE to perform the LBT to occupy the unlicensed channel, thereby saving the signaling overhead and energy consumption of the remote UE.
  • the field SLUnlicensed, SL-ConfigCommUnli may be added in the RRC, and the SCI 2A sidelink control information may be added (see Table 4).
  • FIG. 2 illustrates a configuration example of an electronic device for wireless communication, according to one embodiment.
  • the electronic device 200 includes a processing circuit 210 including a determining unit 211, a control unit 213, and a selecting unit 215.
  • the configuration of the determination unit 211 and the control unit 213 is similar to the determination unit 111 and the control unit 113 described earlier.
  • the selection unit 215 is configured to select an unlicensed band resource for the through link communication based on the area configuration information.
  • resources for the remote UE to perform sidelink communication may be selected, for example, from the commTxPoolNormalCommon resource pool in the SIB 18.
  • the prioritylist field is configured, the resource pool is selected according to the priority of the field. If the field is not configured, for example, the first resource pool can be selected. Since the remote UE selects a resource in the SIB 18, it is easy for multiple remote UEs to select the same unlicensed resource on the same subframe, thereby causing a channel access conflict.
  • Fig. 25 shows an example of zone division.
  • unlicensed resources can be configured in the SIB 18 resource pool list, and UnlicensedEnabledZoneList and ZoneConfig are configured in SIB 18.
  • the UE When the UE selects a resource pool in the SIB 18, if the unlicensed resource pool is selected, the UE checks whether its own zone ID is in the UnlicensedEnabledZoneList list. If it is in the list, the UE is allowed to use the selected unlicensed resource.
  • the unlicensed resource is configured in the SIB 18 resource pool list. If the remote UE selects the unlicensed resource pool and the zone ID of the remote UE is included in the UnlicensedEnabledZoneList, the UE performs an LBT operation to access the unlicensed resource according to the configuration information. If the LBT is successfully executed, it occupies the unauthorized resource. If the number of subframes in which the LBT fails is greater than the maximum number of subframes, the UE may directly select an authorized resource pool, for example.
  • the unlicensed resource usage of each zone can be flexibly enabled, the unauthorized channel access conflict is effectively reduced, and the delay is reduced.
  • the fields SLUnlicensed, SL-ConfigCommUnli (see Table 1) and SCI 2Asidelink control information (see Table 4) may be added in the RRC, and zone-related configuration information may be introduced, as shown in Table 6.
  • non-authorized resource pool selection for sidelink discovery can also be performed based on the region.
  • the relay UE and the remote UE can obtain the resource of the discovery discovery from the SIB 19, for example. If the unlicensed resource pool is configured in the SIB19 for the sidelink discovery process, the access problem of the unauthorized channel is generated. . To reduce the access collision of the unlicensed resource pool, you can introduce the zone configuration, as shown in Figure 25.
  • the eNB controls the sidelink to use a non-authorized resource to send a discovery by dividing the area.
  • the unlicensed resource is configured in the SIB19, you can configure the UnlicensedEnabledZoneList field to indicate the zone list of the unlicensed resources in the available SIB19, and the ZoneConfig field to configure the zone.
  • the relay UE or the remote UE selects an unauthorized resource in the SIB 19, it checks whether its own zone ID is in the UnlicensedEnabledZoneList list. If it is in the list, the relay UE or remote UE is allowed to use. Selected unlicensed resource.
  • the flow of use of the unlicensed resources in SIB 19 is similar to that shown in FIG.
  • the field SLUnlicensed, SL-ConfigDiscUnli (see Table 1) can be added in the RRC, and the zone-related configuration information can be introduced, as shown in Table 7.
  • control unit 113, 213 may be further configured to perform control to transmit information indicating the maximum channel occupation time MCOT of the unlicensed band resource occupied by the first user equipment to the second user equipment, and the second User equipment shares MCOT.
  • the shared MCOT is used herein to share the remaining subframes of the unlicensed resources occupied by the first user equipment to the second user equipment, and the first user no longer uses the unauthorized resources during the sharing period.
  • the maximum channel occupation time MCOT of the unlicensed band resources that the first user equipment has occupied can also be used for the through link discovery.
  • the relay UE receives, from the base station, information about the maximum channel occupation time MCOT of the unlicensed band resource of the cellular link, and uses the unlicensed band resource in the MCOT to perform with the remote UE.
  • Direct link communication For the relay UE and the remote UE, according to an embodiment, the relay UE receives, from the base station, information about the maximum channel occupation time MCOT of the unlicensed band resource of the cellular link, and uses the unlicensed band resource in the MCOT to perform with the remote UE.
  • Example 1 When the Uu link uses an unlicensed resource, the relay UE uses the unlicensed resource for sidelink communication, the relay UE shares the unauthorized resource occupied by itself to the remote UE and adds the MCOTConfig field, and the remote UE performs type 2LBT or does not perform LBT. Access to an unauthorized channel.
  • the MCOTConfig field contains the remaining number of unlicensed subframes and unlicensed channel access parameters.
  • the remote UE uses the unlicensed resource in the MCOT, and the remote UE may not send the PSCCH and directly send the PSSCH in order to save the available unlicensed subframe.
  • the signaling configuration is shown in Figure 27.
  • the Relay UE activates the remote UE to use the unlicensed resource through the PSCCH SCI 2A. If the relay UE terminates the use of the unlicensed resource by the remote UE, the use of the non-authorized resource is deactivated by the PSCCH SCI 2A.
  • the relay UE configures the unlicensed channel access parameter configuration in MCOTconfig.
  • the MCOTconfig IE may contain the number of available subframes and the unlicensed channel access parameters, and the fields included are as shown in Table 8, for example.
  • Example 2 When the Uu link uses the unlicensed resource, the remote UE uses the unlicensed resource for the sidelink communication, the remote UE shares the unlicensed resource occupied by the remote UE to the relay UE and adds the MCOTConfig field, and the relay UE performs the type 2 LBT or does not execute.
  • the LBT accesses the unlicensed channel.
  • the MCOTConfig field contains the remaining number of unlicensed subframes and unlicensed channel access parameters.
  • the relay UE uses the unlicensed resource in the MCOT, and the relay UE may not send the PSCCH and directly send the PSSCH in order to save the available unlicensed subframe.
  • the signaling configuration is shown in Figure 28.
  • the relay UE and the remote UE share the unlicensed information of the MCOT, and the relay UE or the remote UE can perform a simple LBT (for example, Type 2 LBT) or perform an LBT operation to access the unlicensed channel, thereby reducing signaling overhead and energy consumption. And time delay.
  • a simple LBT for example, Type 2 LBT
  • the remote UE configures the unlicensed channel access parameter configuration in MCOTconfig, and may include, for example, NumberSubframe, PSSCH starting position, PSSCH ending symbol, Channel Access Type, and Channel Access Priority Class, see Table 8.
  • the MCOT is shared between the relay UE and the remote UE, and the Uulink may use an authorized resource or an unlicensed resource.
  • Example 3 When the Uu link uses the unlicensed resource pool to transmit the sidelink related data to the relay UE, the relay UE can share the unlicensed resource of the Uu link to perform the sidelink communication process.
  • the process is as shown in FIG. 29: the eNB transmits the sidelink data to the relay UE, and shares the remaining unlicensed subframes to the relay UE to perform sidelink communication; the eNB informs the relay UE of the parameter configuration of the unlicensed band through the MCOTConfig field; the remote UE is configured according to The configuration information performs type 2 LBT or does not perform LBT to occupy the unlicensed channel.
  • the eNB activates the relay UE to use the unlicensed resource through the PDCCH DCI 5B, and configures the access parameter of the unlicensed resource. If the eNB terminates the relay UE using the unlicensed resource, the use of the non-authorized resource is deactivated by the PDCCH DCI 5B.
  • the eNB configures the unlicensed channel access parameter configuration in MCOTconfig, see Table 8.
  • Example 4 When the relay UE or the remote UE discovers the execution discovery process using model B ("who is there" mode), the receiving UE can access the unlicensed channel within the MCOT.
  • the receiving UE may perform type 2 LBT access to the unlicensed channel to send a discovery response message, or the receiving UE may not perform LBT access to the unlicensed channel.
  • the discovery solicitation message shall contain the configuration information of the MCOT, including at least the channel access parameters, and the remaining number of available unlicensed subframes. This method can effectively reduce the access delay and energy consumption of the unlicensed resources of the receiving UE.
  • the signaling flow in this case is shown in FIG.
  • the eNB configures the unlicensed channel access parameter configuration in MCOTconfig, see Table 8.
  • the present invention provides a configuration flow of unlicensed parameters on the sidelink, so that the D2D user can acquire the unlicensed resources; the present invention proposes a process of using the unlicensed resources in the D2D communication and discovery process, including the configuration and usage of the non-resources, and the UE.
  • the present invention proposes a process of using the unlicensed resources in the D2D communication and discovery process, including the configuration and usage of the non-resources, and the UE.
  • a wireless communication method in accordance with one embodiment includes the following steps.
  • the first user equipment is controlled to perform the through link communication with the second user equipment by using the unlicensed frequency band resource.
  • FIG. 4 illustrates a configuration example of an electronic device for wireless communication according to another embodiment.
  • the electronic device 400 includes a processing circuit 410, and the processing circuit 410 includes a control unit 411 configured to control the first user equipment to perform through link communication with the second user equipment using the unlicensed band resource and to perform control to indicate that the first user equipment has
  • the MCOT information of the occupied unlicensed band resource is sent to the second user equipment to share the MCOT with the second user equipment.
  • one of the first user equipment and the second user equipment works as a relay UE
  • the other one of the first user equipment and the second user equipment works as a remote UE
  • the remote UE receives the from the base station via the relay UE.
  • Information and the relay UE receives information of the MCOT for the unlicensed band resource of the cellular link from the base station, and uses the unlicensed band resource in the MCOT to perform the through link communication with the remote UE.
  • the maximum channel occupancy time MCOT of the unlicensed band resources that the first user equipment has occupied is used for through link discovery.
  • a wireless communication method includes the following steps.
  • the first user equipment is controlled to perform the through link communication with the second user equipment by using the unlicensed band resource.
  • information indicating the MCOT of the unlicensed band resource that the first user equipment has occupied is sent to the second user equipment to share the MCOT with the second user equipment. More specifically, the second user equipment may perform LBT according to the MCOT configuration to use the unlicensed resource.
  • FIG. 6 illustrates a configuration example of an electronic device for wireless communication according to another embodiment.
  • the electronic device 600 includes a processing circuit 610, and the processing circuit 610 includes a control unit 611 configured to perform control to transmit indication information to the user equipment indicating the manner in which the unlicensed band resources for the through link communication of the user equipment are acquired. Or the indication information indicates an unlicensed band resource.
  • the obtaining manner may include: the unlicensed band resource is specified by the base station or the unlicensed band resource is selected by the user equipment in the configured resource pool or resource pool list.
  • a wireless communication method includes the following steps.
  • the indication information is sent to the user equipment, where the indication information indicates an acquisition manner of the unlicensed frequency band resource for the through link communication of the user equipment, or the indication information indicates the unlicensed frequency band resource.
  • embodiments of the present invention also include a computer readable medium including executable instructions that, when executed by an information processing apparatus, cause an information processing apparatus to perform a method according to an embodiment of the present invention.
  • the various steps of the above methods, as well as the various constituent modules and/or units of the above-described apparatus may be implemented as software, firmware, hardware or a combination thereof.
  • a program constituting software for implementing the above method may be installed from a storage medium or a network to a computer having a dedicated hardware structure (for example, the general-purpose computer 800 shown in FIG. 8), which is installed.
  • a dedicated hardware structure for example, the general-purpose computer 800 shown in FIG. 8
  • an arithmetic processing unit (i.e., CPU) 801 executes various processes in accordance with a program stored in a read only memory (ROM) 802 or a program loaded from a storage portion 808 to a random access memory (RAM) 803.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 801 executes various processes and the like is also stored as needed.
  • the CPU 801, the ROM 802, and the RAM 803 are linked to each other via a bus 804.
  • Input/output interface 805 is also linked to bus 804.
  • the following components are linked to an input/output interface 805: an input portion 806 (including a keyboard, a mouse, etc.), an output portion 807 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.)
  • the storage portion 808 (including a hard disk or the like), the communication portion 809 (including a network interface card such as a LAN card, a modem, etc.).
  • the communication section 809 performs communication processing via a network such as the Internet.
  • Driver 810 can also be linked to input/output interface 805 as needed.
  • a removable medium 811 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 810 as needed, so that a computer program read therefrom is installed into the storage portion 808 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 811.
  • such a storage medium is not limited to the removable medium 811 shown in FIG. 8 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the detachable medium 811 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered trademark) )) and semiconductor memory.
  • the storage medium may be a ROM 802, a hard disk included in the storage portion 808, or the like, in which programs are stored, and distributed to the user together with the device containing them.
  • Embodiments of the present invention also relate to a program product for storing a machine readable instruction code.
  • the instruction code is read and executed by a machine, the above-described method according to an embodiment of the present invention can be performed.
  • a storage medium for carrying a program product storing the above-described storage machine readable instruction code is also included in the disclosure of the present invention.
  • the storage medium includes, but is not limited to, a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and the like.
  • Embodiments of the present application also relate to the following electronic devices.
  • the electronic device may be implemented as any type of gNB or evolved Node B (eNB), such as a macro eNB and a small eNB.
  • the small eNB may be an eNB covering a cell smaller than the macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • the electronic device can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
  • BTS base transceiver station
  • the electronic device can include: a body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless headends (RRHs) disposed at a different location than the body.
  • a body also referred to as a base station device
  • RRHs remote wireless headends
  • various types of terminals which will be described below, can operate as a base station by performing base station functions temporarily or semi-persistently.
  • the electronic device can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/encrypted dog type mobile router, and a digital camera device) or Vehicle terminal (such as car navigation equipment).
  • the electronic device may be a wireless communication module (such as an integrated circuit module including a single or a plurality of wafers) mounted on each of the above terminals.
  • FIG. 9 is a block diagram showing an example of a schematic configuration of a smartphone 2500 to which the technology of the present disclosure can be applied.
  • the smart phone 2500 includes a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, an imaging device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, and one or more An antenna switch 2515, one or more antennas 2516, a bus 2517, a battery 2518, and an auxiliary controller 2519.
  • the processor 2501 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and the other layers of the smartphone 2500.
  • the memory 2502 includes a RAM and a ROM, and stores data and programs executed by the processor 2501.
  • the storage device 2503 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 2504 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 2500.
  • USB universal serial bus
  • the image pickup device 2506 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • Sensor 2507 can include a set of sensors, such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
  • the microphone 2508 converts the sound input to the smartphone 2500 into an audio signal.
  • the input device 2509 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 2510, and receives an operation or information input from the user.
  • the display device 2510 includes screens such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 2500.
  • the speaker 2511 converts the audio signal output from the smartphone 2500 into a sound.
  • the wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 2512 may generally include, for example, a baseband (BB) processor 2513 and radio frequency (RF) circuitry 2514.
  • the BB processor 2513 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication.
  • the RF circuit 2514 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 2516.
  • the wireless communication interface 2512 can be a chip module on which the BB processor 2513 and the RF circuit 2514 are integrated. As shown in FIG.
  • the wireless communication interface 2512 can include a plurality of BB processors 2513 and a plurality of RF circuits 2514.
  • FIG. 9 illustrates an example in which the wireless communication interface 2512 includes a plurality of BB processors 2513 and a plurality of RF circuits 2514, the wireless communication interface 2512 may also include a single BB processor 2513 or a single RF circuit 2514.
  • wireless communication interface 2512 can support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 2512 can include a BB processor 2513 and RF circuitry 2514 for each wireless communication scheme.
  • Each of the antenna switches 2515 switches the connection destination of the antenna 2516 between a plurality of circuits included in the wireless communication interface 2512, such as circuits for different wireless communication schemes.
  • Each of the antennas 2516 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 2512 to transmit and receive wireless signals.
  • smart phone 2500 can include multiple antennas 2516.
  • FIG. 9 shows an example in which the smartphone 2500 includes a plurality of antennas 2516, the smartphone 2500 may also include a single antenna 2516.
  • smart phone 2500 can include an antenna 2516 for each wireless communication scheme.
  • the antenna switch 2515 can be omitted from the configuration of the smartphone 2500.
  • the bus 2517 has a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, an imaging device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, and an auxiliary controller 2519. connection.
  • Battery 2518 provides power to various blocks of smart phone 2500 shown in FIG. 9 via a feeder, which is partially shown as a dashed line in the figure.
  • the secondary controller 2519 operates the minimum required function of the smartphone 2500, for example, in a sleep mode.
  • the transceiver of the device on the user device side may be implemented by the wireless communication interface 2512.
  • the processing circuit of the electronic device or information processing device on the user equipment side and/or at least a part of the functions of each unit according to an embodiment of the present invention may also be implemented by the processor 2501 or the auxiliary controller 2519.
  • the power consumption of the battery 2518 can be reduced by performing a portion of the functions of the processor 2501 by the auxiliary controller 2519.
  • the processor 2501 or the auxiliary controller 2519 may execute the processing circuit of the electronic device or the information processing device on the user equipment side and/or each unit of the user equipment side according to the embodiment of the present invention by executing the program stored in the memory 2502 or the storage device 2503. At least part of the function.
  • FIG. 10 is a block diagram showing an example of a schematic configuration of a base station such as an evolved base station (eNB) to which the technology of the present disclosure can be applied.
  • the eNB 2300 includes one or more antennas 2310 and base station devices 2320.
  • the base station device 2320 and each antenna 2310 may be connected to each other via a radio frequency (RF) cable.
  • RF radio frequency
  • Each of the antennas 2310 includes a single or multiple antenna elements, such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna, and is used by the base station device 2320 to transmit and receive wireless signals.
  • the eNB 2300 can include multiple antennas 2310.
  • multiple antennas 2310 can be compatible with multiple frequency bands used by eNB 2300.
  • FIG. 10 illustrates an example in which the eNB 2300 includes a plurality of antennas 2310, the eNB 2300 may also include a single antenna 2310.
  • the base station device 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.
  • the controller 2321 can be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 2320. For example, controller 2321 generates data packets based on data in signals processed by wireless communication interface 2325 and delivers the generated packets via network interface 2323. The controller 2321 can bundle data from a plurality of baseband processors to generate bundled packets and deliver the generated bundled packets. The controller 2321 may have a logical function that performs control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby eNBs or core network nodes.
  • the memory 2322 includes a RAM and a ROM, and stores programs executed by the controller 2321 and various types of control data such as a terminal list, transmission power data, and scheduling data.
  • the network interface 2323 is a communication interface for connecting the base station device 2320 to the core network 2324. Controller 2321 can communicate with a core network node or another eNB via network interface 2323. In this case, the eNB 2300 and the core network node or other eNBs may be connected to each other through a logical interface such as an S1 interface and an X2 interface.
  • the network interface 2323 can also be a wired communication interface or a wireless communication interface for wireless backhaul lines. If the network interface 2323 is a wireless communication interface, the network interface 2323 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 2325.
  • the wireless communication interface 2325 supports any cellular communication schemes, such as Long Term Evolution (LTE) and LTE-Advanced, and provides wireless connectivity to terminals located in cells of the eNB 2300 via the antenna 2310.
  • Wireless communication interface 2325 can typically include, for example, BB processor 2326 and RF circuitry 2327.
  • the BB processor 2326 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs layers (eg, L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) Various types of signal processing.
  • BB processor 2326 may have some or all of the above described logic functions.
  • the BB processor 2326 can be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program.
  • the update program can cause the functionality of the BB processor 2326 to change.
  • the module can be a card or blade that is inserted into the slot of the base station device 2320. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 2327 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 2310.
  • the wireless communication interface 2325 can include a plurality of BB processors 2326.
  • multiple BB processors 2326 can be compatible with multiple frequency bands used by eNB 2300.
  • the wireless communication interface 2325 can include a plurality of RF circuits 2327.
  • multiple RF circuits 2327 can be compatible with multiple antenna elements.
  • FIG. 10 illustrates an example in which the wireless communication interface 2325 includes a plurality of BB processors 2326 and a plurality of RF circuits 2327, the wireless communication interface 2325 may also include a single BB processor 2326 or a single RF circuit 2327.
  • the transceiver of the device on the base station side can be implemented by the wireless communication interface 2325.
  • the processing circuit of the electronic device or the information processing device on the base station side and/or at least a part of the functions of each unit according to an embodiment of the present invention may also be implemented by the controller 2321.
  • the controller 2321 can perform at least a part of the functions of the processing circuit and/or the respective units of the electronic device or the information processing device on the base station side according to the embodiment of the present invention by executing the program stored in the memory 2322.
  • the method of the present invention is not limited to being performed in the chronological order described in the specification, and may be performed in other chronological order, in parallel, or independently. Therefore, the order of execution of the methods described in the present specification does not limit the technical scope of the present invention.

Abstract

本公开涉及电子装置、无线通信方法和计算机可读介质。根据一个实施例的用于无线通信的电子装置包括处理电路，处理电路被配置为：确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件；以及在满足条件的情况下，控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信。

Description

电子装置、无线通信方法和计算机可读介质 技术领域
本公开一般涉及无线通信领域，更具体地，涉及用于无线通信的电子装置、无线通信方法以及计算机可读介质。
背景技术
LTE(长期演进)中的近距业务(Proximity service)主要分为设备至设备(D2D)发现与D2D通信。此外，LTE Rel-13中涉及了用户设备至网络中继(UE-to-Network Relay)，即将用户设备作为中继来对边缘用户设备提供服务，从而提升边缘用户设备的性能。
在UE-to-Network relay情况下，中继用户设备(relay UE)或被中继用户设备(remote UE)被特定的无线资源控制(RRC)消息指配或是从系统信息获取授权频段资源以执行通信和发现过程。
发明内容
在下文中给出了关于本发明实施例的简要概述，以便提供关于本发明的某些方面的基本理解。应当理解，以下概述并不是关于本发明的穷举性概述。它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的范围。其目的仅仅是以简化的形式给出某些概念，以此作为稍后论述的更详细描述的前序。
根据一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。处理电路被配置为：确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件；以及在满足所述条件的情况下，控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信。
根据另一个实施例，一种无线通信方法包括：确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件；以及在满足所述条件的情况下，控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信。
根据又一个实施例，提供一种用于无线通信的电子装置，其包括处理电 路。处理电路被配置为：控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信；以及进行控制以将指示第一用户设备已占据的非授权频段资源的最大信道占用时间(MCOT)的信息发送给第二用户设备，以与第二用户设备共享MCOT。
根据再一个实施例，一种无线通信方法包括：控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信；以及将指示第一用户设备已占据的非授权频段资源的MCOT的信息发送给第二用户设备，以与第二用户设备共享MCOT。
根据又一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。处理电路被配置为：进行控制以向用户设备发送指示信息，其中，指示信息指示用于用户设备的直通链路通信的非授权频段资源的获取方式，或者指示信息指示非授权频段资源。
根据再一个实施例，一种无线通信方法包括：向用户设备发送指示信息，其中，指示信息指示用于用户设备的直通链路通信的非授权频段资源的获取方式，或者指示信息指示非授权频段资源。
根据又一个实施例，提供一种计算机可读介质，其包括可执行指令，当可执行指令被信息处理设备执行时，使得信息处理设备执行根据上述实施例的方法。
本发明实施例使得能够在直通链路(sidelink)上使用非授权资源，并且通过设置UE使用非授权资源的条件，能够提高用户的服务质量，降低对非3GPP技术的设备的干扰。
附图说明
本发明可以通过参考下文中结合附图所给出的描述而得到更好的理解，其中在所有附图中使用了相同或相似的附图标记来表示相同或者相似的部件。所述附图连同下面的详细说明一起包含在本说明书中并且形成本说明书的一部分，而且用来进一步举例说明本发明的优选实施例和解释本发明的原理和优点。在附图中：
图1是示出根据本发明一个实施例的用于无线通信的电子装置的配置示例的框图；
图2是示出根据本发明另一个实施例的用于无线通信的电子装置的配置 示例的框图；
图3是示出根据本发明的一个实施例的无线通信方法的过程示例的流程图；
图4是示出根据本发明一个实施例的用于无线通信的电子装置的配置示例的框图；
图5是示出根据本发明的一个实施例的无线通信方法的过程示例的流程图；
图6是示出根据本发明一个实施例的用于无线通信的电子装置的配置示例的框图；
图7是示出根据本发明的一个实施例的无线通信方法的过程示例的流程图；
图8是示出实现本公开的方法和设备的计算机的示例性结构的框图；
图9是示出可以应用本公开内容的技术的智能电话的示意性配置的示例的框图；
图10是示出可以应用本公开内容的技术的基站的示意性配置的示例的框图；
图11A至图11C是用于说明本公开实施例的应用场景的示例的示意图；
图12示出了示例实施例中的非授权资源使用流程；
图13示出了示例实施例中的非授权资源配置流程；
图14示出了示例实施例中的非授权资源配置流程；
图15示出了示例实施例中的非授权资源使用流程；
图16示出了示例实施例中的非授权资源使用流程；
图17示出了示例实施例中的非授权资源使用流程；
图18示出了示例实施例中的非授权资源配置流程；
图19示出了示例实施例中的非授权资源配置流程；
图20示出了示例实施例中的非授权资源使用流程；
图21示出了示例实施例中的非授权资源使用流程；
图22示出了示例实施例中的非授权资源配置流程；
图23示出了示例实施例中的非授权资源配置流程；
图24示出了示例实施例中的非授权资源配置流程；
图25是用于说明基于区域的非授权资源选择的示意图；
图26示出了示例实施例中的非授权资源使用流程；
图27示出了示例实施例中的MCOT共享的示例流程；
图28示出了示例实施例中的MCOT共享的示例流程；
图29示出了示例实施例中的MCOT共享的示例流程；以及
图30示出了示例实施例中的MCOT共享的示例流程。
具体实施方式
下面将参照附图来说明本发明的实施例。在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。应当注意，为了清楚的目的，附图和说明中省略了与本发明无关的、本领域普通技术人员已知的部件和处理的表示和描述。
如图1所示，根据本实施例的用于无线通信的电子装置100包括处理电路110。处理电路110例如可以实现为特定芯片、芯片组或者中央处理单元(CPU)等。
处理电路110包括确定单元111和控制单元113。需要指出，虽然附图中以功能块的形式示出了确定单元111和控制单元113，然而应理解，各单元的功能也可以由处理电路作为一个整体来实现，而并不一定是通过处理电路中分立的实际部件来实现。另外，虽然图中以一个框示出处理电路，然而电子装置可以包括多个处并理电路，且可以将各单元的功能分布到多个处理电路中，从而由多个处理电路协同操作来执行这些功能。
确定单元111被配置为确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件。
根据一个实施例，该条件与以下方面中的一项或更多项有关：要进行的直通链路通信的服务优先级；第一用户设备与第二用户设备之间的当前链路质量；第一用户设备和/或第二用户设备先前针对非授权频段资源进行的载波监听的失败次数；第一用户设备和/或第二用户设备的剩余电量；以及在基站将待由第一用户设备和第二用户设备中的relay UE转发至第一用户设备和第 二用户设备中的remote UE的信息发送给第一用户设备和第二用户设备中的relay UE的过程产生中的延迟。
作为示例，在上述条件中：服务优先级可以包括近距业务数据分组优先级PPPP；链路质量可以包括参考信号接收功率RSRP；失败次数可以包括在先前预定长度的时间窗内的载波监听失败的子帧数；延迟可以包括由基站对用于发送信息的非授权频段资源进行载波监听(LBT)而造成的延迟。
UE使用非授权子资源之前需要执行LBT操作，执行LBT增加了UE的能量消耗，也可能因为LBT失败而增加时延。在本实施例中，为了保障UE的服务质量，在选择非授权资源之前，判断当前的链路质量、电量、数据服务优先级和累积LBT失败情况等判断是否应该选择非授权资源。
更具体地，当relay UE或remote UE在资源池里选择非授权资源的时候，relay UE或remote UE使用非授权资源的条件可以包括：
(1)如果sidelink数据服务优先级PPPP等级处于某些等级或是延迟需求小于阈值，relay UE或remote UE直接选择授权资源；否则，UE被允许选择非授权资源。
(2)若当前链路的链路质量(RSRP)低于阈值，那么relay UE或remote UE直接使用授权资源。
(3)若relay UE或remote UE统计在之前的一段时间窗内，累积执行LBT失败的子帧数大于某个阈值，那么relay UE或remote UE直接选择授权资源。
(4)若relay UE或remote UE当前的电量低于阈值，那么relay UE或remote UE直接使用授权资源。
(5)若eNB采用非授权资源发送sidelink相关的数据给relay UE，若eNB执行LBT失败所造成的延迟大于阈值，那么eNB通知relay UE直接使用授权资源，relay UE直接选择授权资源，以避免在整个转发过程中产生过多的延迟。
控制单元113被配置为在确定单元111确定满足上述条件的情况下，控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信。
图11A至图11C示出了作为本发明实施例的应用示例的FeD2D(进一步增强的D2D)中使用非授权频段的场景。
在如图11A所示的单向(unidirectional)场景下，relay UE和remote UE 都处于覆盖内(IC)状态，remote UE可以在sidelink通信和发现过程使用非授权资源。
在如图11B所示的双向(bidirectional)场景下，relay UE和remote UE都处于IC状态，relay UE可以在sidelink通信和发现过程使用非授权资源，remote UE可以在sidelink通信和发现过程使用非授权资源。
在如图11C所示的双向(bidirectional)场景下，relay UE处于IC状态，remote UE处于覆盖外(OOC)状态，relay UE可以在sidelink通信和发现过程使用非授权资源，remote UE可以在sidelink通信和发现过程使用非授权资源。
本发明实施例涉及针对UE所处的不同场景和不同状态，配置relay UE和remote UE利用非授权频段执行sidelink通信。具体地，根据资源的指配方式例如可以包括：基站直接分配(eNB direct allocation)方式、基站间接分配(eNB in-direct allocation)方式、中继UE辅助分配(relay UE assisted allocation)方式、UE自主分配(UE autonomous allocation)方式、以及共享MCOT(Shared MCOT)方式。接下来，针对上述方面分别描述示例实施例。
需要指出，在本发明实施例中描述的用于直通链路通信的非授权频段资源可以包括用于直通链路通信的非授权频段资源，也可以包括用于直通链路发现的非授权频段资源。
根据一个实施例，确定单元111还被配置为根据来自基站的指示信息确定非授权频段资源的获取方式，获取方式可以包括：由基站指定非授权频段资源；或者由用户设备在被配置的资源池或资源池列表中选择非授权频段资源。
更具体地，该指示信息例如可以被包括在无线资源控制RRC信令中。另外，被配置的资源池或资源池列表例如可以通过RRC信令或系统信息块(SIB)指示。
此外，根据一个实施例，确定单元111还被配置为根据来自基站的指示信息确定用于直通链路通信的非授权频段资源。
更具体地，该指示信息可以通过物理下行控制信道PDCCH发送。此外，用于直通链路发现的资源池信息可以通过RRC信令和SIB获取。
接下来，参照具体示例说明由基站进行非授权资源分配的示例实施例。
在UE与主小区建立的RRC连接(RRC_CONNECTED)的状态下，来 自基站的信令配置例如为：RRC→sl-commconfig→commTxResources→scheduled。在该情况下，relay UE或remote UE可以通过盲检PDCCH获取DCI format 5，进而得到sidelink上传输PSCCH和PSSCH所使用的资源。这种情况下的非授权资源的使用流程如图12所示：
首先，当relay UE或remote UE在RRC信令里被配置了非授权资源，relay UE或remote UE通过监听PDCCH DCI 5B来获取非授权资源的配置情况；
然后，根据非授权资源的配置，relay UE或remote UE执行LBT接入非授权资源；
如果relay UE或remote UE接入被指配的非授权资源失败的累积次数大于阈值，那么relay UE或remote UE直接申请授权资源进行sidelink通信过程，否则，relay UE或remote UE占据该非授权频段进行通信过程。
在这种情况下，例如可以在RRC里新增字段：SLUnlicensed，参见表1。
表1：RCC新增字段
字段 说明
SLUnlicensed 指示Sidelink上是否可以使用使用非授权资源，1bit
sl-subframeUnli 半静态调度时被调度的子帧
SL-ConfigUnli Sidelink非授权资源配置IE
SL-ConfigCommUnli Sidelink通信过程非授权资源配置IE
SL-ConfigDiscUnli Sidelink发现过程非授权资源配置IE
此外，SL-ConfigUnli IE所包含的字段例如可以如以下表2所示。
表2：SL-ConfigUnli IE所包含字段
Figure PCTCN2019085496-appb-000001
Figure PCTCN2019085496-appb-000002
此外，relay UE或remote UE例如可以通过监听PDCCH DCI format 5B得到非授权资源的配置。在PDCCH DCI format 5B里可以增加SCI format 0A字段，来指示sidelink上通信数据的非授权资源池的配置。
作为示例，可以新增PSCCH SCI 0A\2A和PDCCH DCI 5B\5C。
新增SCI 0A用于指示非授权资源池的配置的信息，SCI 0A在SCI 0的基础上，新增的字段为用来指示PSSCH所使用的非授权资源的配置，包括载波指示，起止符号(symbol)，以及信道接入类型和信道接入优先级类。
SCI 0A在SCI 0基础上新增的字段如下面的表3所示。
表3：SCI 0A字段设置
Figure PCTCN2019085496-appb-000003
Figure PCTCN2019085496-appb-000004
新增SCI 2A用于指示非授权资源池的配置的信息，该字段用于指示relay UE给remote UE配置的用于remote UE传输PSSCH资源的非授权资源的配置信息。SCI2A在SCI 0的基础上，新增的字段为用来指示PSSCH所使用的非授权资源的配置，包括载波指示，起止symbol，以及信道接入类型和信道接入优先级类。
SCI 2A在SCI 0基础上新增的字段如下面的表4所示。
表4：SCI 2A字段设置
Figure PCTCN2019085496-appb-000005
新增的PDCCH DCI 5B控制信令由eNB发送给relay UE或remote UE，指示relay UE或remote UE PSCCH以及PSSCH的传输非授权资源配置，包含SCI 0A。
在PDCCH DCI 5的基础上，新增SCI 0A配置
新增的PDCCH DCI 5C控制信令由eNB发送给relay UE，包含relay UE传输PSCCH的资源，以及relay UE指示remote UE传输PSSCH所用的非授权资源配置，包含SCI 2A。
在PDCCH DCI 5的基础上，新增SCI 2A配置
需要指出，以上描述的信令配置仅仅是示例性的而非限制行的。
此外，eNB可以通过动态方式或半静态方式配置非授权资源池。
在动态方式的情况下，eNB通过PDCCH DCI 5B信令动态地给relay UE和remote UE进行非授权资源池的配置。eNB通过RRC信令告知relay UE或remote UE，资源的调度方式是“scheduled(被调度)”，然后eNB向relay UE或remote UE发送PDCCH DCI 5B(SCI 0A)。Relay UE或remote UE根据非授权资源的配置情况，执行LBT，接入非授权信道以进行通信过程。
在半静态方式的情况下，eNB通过PDCCH DCI 5B信令半静态地给relay UE和remote UE进行非授权资源池的配置。eNB通过RRC信令告知relay UE或remote UE，资源的调度方式是“scheduled(被调度)”并且配置非授权半静态调度的参数，然后eNB向relay UE或remote UE发送PDCCH DCI 5B(SCI0A)并且激活非授权资源的半静态调度。Relay UE或remote UE根据非授权资源的配置情况，执行LBT，接入非授权信道以进行通信过程。
非授权资源池的上述示例配置过程的信令流程如图13所示。
在这种情况下，例如可以在RRC里新增字段：SLUnlicensed，sl-subframeUnli，参见表1。新增控制信令形式PDCCH DCI 5B(SCI 0A)，参见表3。
上面描述了非授权资源的获取方式为由基站指定的示例实施方式，接下来说明由用户设备在被配置的资源池或资源池列表中选择非授权频段资源的示例实施方式。
在UE自主选择非授权资源的情况下，来自基站的信令配置例如为RRC→sl-commconfig→commTxResources→ue-selected→commTxPoolNormalDedicated或commTxPoolNormalDedicatedExt，在该情况下，relay UE或是remote UE可以直接在给定的资源池里选择资源执行sidelink通信过程。非授权资源的信令配置流程如图14所示。
这种情况下的非授权资源的使用流程如图15所示：
首先，当relay UE或remote UE在RRC信令被配置使用非授权资源资源池，并且RRC信令里是指示“ue-selected”，那么relay UE或remote UE在RRC资源池列表里选择资源池(可以包括授权资源和非授权资源)。
然后，若remote UE或relay UE选择了非授权资源池，那么relay UE或remote UE执行LBT操作根据RRC信令配置的参数。
如果relay UE或remote UE接入被指配的非授权资源失败的累积次数大于阈值，那么relay UE或remote UE直接在资源池列表选择授权资源进行sidelink通信过程，否则relay UE或remote UE占据该非授权频段进行sidelink通信过程。
Relay UE和remote UE通过监听RRC信令获取非授权资源池的配置情况，同时例如可以在PDCCH DCI 5增加sidelink非授权资源以及信道接入的配置信息，当relay UE从RRC信令的资源池列表里自选非授权资源时，通过在选择非授权资源之前增加非授权信道选择的条件，降低由于接入非授权信道所带来的时延，提高UE的服务质量。
在这种情况下，例如可以在RRC里新增字段：SLUnlicensed，SL-ConfigCommUnli，参见表1。
上面描述了与sidelink通信资源有关的示例实施方式，接下来说明与sidelink发现资源有关的示例实施方式。与通信资源类似，用于sidelink发现的资源的获取方式也可以包括由基站指定非授权频段资源或者由用户设备在被配置的资源池或资源池列表中选择非授权频段资源。
对于由基站指定用于sidelink发现(discovery)的非授权频段资源的情况，当UE处于RRC_CONNECTED状态，UE传输discovery所使用的资源可以在RRC信令里获取，当RRC信令指示的是scheduled情况下，UE使用特定的资源传输discovery；当RRC信令指示的是ue-selected情况下,UE发送discovery使用的资源是从特定的资源池例如discTxPoolDedicated选择。
Scheduled情况下发送discovery的流程如图16所示：
若relay UE或remote UE在RRC信令(scheduled)被配置了非授权资源，relay UE或remote UE执行LBT接入非授权资源。若LBT执行成功，该relay UE或remote UE占据该非授权频段。若relay UE或remote UE执行LBT失败的子帧数达到阈值，那么该relay UE或remote UE例如可以通过sidelinkUEinformation申请授权资源池来发送discovery信号。
在sidelink发现过程中使用非授权资源可以提高系统容量。此外，通过配置累积最大的LBT失败子帧数可以降低UE使用非授权资源的时延。
在这种情况下，在RRC里可以新增字段：SLUnlicensed，SL-ConfigDiscUnli，参见表1。
对于UE在被配置的资源池或资源池列表中选择用于sidelink发现的非授权频段资源的情况，当relay UE或remote UE处于RRC_CONNECTED状态，并且RRC信令配置ue-selected，指示UE在被配置的资源池里选择资源。若在被配置的资源池包含非授权资源，若非授权资源被选定，那么执行LBT根据根据信道接入的参数，若relay UE或remote UE在配置的最大子帧数内仍然没有接入非授权信道，那么relay UE或remote UE直接选取优先级较高的授权资源池。若LBT执行成功，那么在该非授权信道上发送discovery。
Ue-selected情况下发送discovery的流程如图17所示：
若relay UE或remote UE在RRC信令(ue-selected)被配置了非授权资源，Relay UE或Remote UE在RRC信令里选择资源。若非授权资源被选中，Relay UE或Remote UE执行LBT接入非授权资源。若LBT执行成功，则该relay UE或remote UE占据该非授权信道。若relay UE或remote UE LBT失败的最大的子帧数大于阈值，那么该relay UE或remote UE选择RRC信令选择授权资源池。
UE在RRC配置的资源池列表里自选非授权资源池进行发现过程，通过增加非授权资源的选择的条件，能够有效地降低非授权资源使用而产生的时延和功耗。
在这种情况下，在RRC里例如可以新增字段：SLUnlicensed，SL-ConfigDiscUnli，参见表1。
接下来，说明基站间接地分配用于remote UE的非授权资源的示例实施方式。
根据一个实施例，relay UE将以下信息中的一项或更多项转发给remote UE：指示用于sidelink通信的非授权频段资源的信息；以及指示用于sidelink通信的非授权频段资源的资源池的信息。
在RRC信令指示SL通信资源是“scheduled”的情况下，当UE在主小区处于RRC_CONNECTED状态，RRC信令配置为：RRC→sl-commconfig→commTxResources→scheduled，eNB将remote UE非授权资源配置通过RRC 信令告知该remote UE所连接的relay UE，并且relay UE将非授权资源池的配置信息完全转发给remote UE。
具体的信令流程如图18所示：
eNB将remote UE的非授权资源池的配置信息通过RRC信令告知relay UE，relay UE例如通过RRCResourceConfig信令将remote UE的非授权资源池的配置信息完全转发给remote UE，remote UE根据非授权资源的配置信息执行LBT操作。
在这种情况下，在RRC里例如可以新增字段：SLUnlicensed，SL-ConfigCommUnli，参见表1。另外，可以引入RRCResourceConfig字段(参见表5)
表5：RRCResourceConfig信令
信令 说明
RRCResourceConfig Relay UE为remote UE转发资源配置信息
另外，在RRC信令指示SL通信资源是“ue-selected”的情况下，当UE在主小区处于RRC_CONNECTED状态，RRC信令配置例如可以为：RRC→sl-commconfig→commTxResources→ue-selected→commTxPoolNormalDedicated或commTxPoolNormalDedicatedExt，eNB将remote UE非授权资源配置通过RRC信令告知该remote UE所连接的relay UE。relay UE将非授权资源池的配置信息完全转发给remote UE。资源池列表(包括授权资源和非授权资源)可以被配置在relay UE的RRC信令里。
具体的流程如图19所示：eNB通过RRC信令将remote UE的非授权资源池的配置信息发送给relay UE；Relay UE通过RRCResourceConfig信令将remote UE非授权资源池的配置信息完全转发给remote UE；若remote UE根据资源池的配置情况选择了非授权资源池，那么remote UE执行LBT以接入非授权资源。
在该示例实施例中，remote UE可以通过relay UE转发的方式获取资源，因此非授权资源的配置可以配置在relay UE的RRC信令里，relay UE获取remote UE的资源配置信息后，将配置信息完全转发给remote UE，remote UE可以根据relay UE转发的配置信息获取非授权资源的配置接入非授权信道。
在这种情况下，在RRC里例如可以新增字段：SLUnlicensed， SL-ConfigCommUnli，参见表1。另外，可以引入RRCResourceConfig字段(参见表5)。
图20和图21示出了示例实施例中remote UE的非授权资源使用流程。
如图20，在remote UE被配置了非授权资源的情况下，根据被配置的非授权资源的使用参数执行LBT。如果remote UE接入被指配的非授权资源失败的累积次数大于阈值，那么remote UE直接申请授权资源进行sidelink通信过程。否则，remote UE占据该非授权频段进行通信过程。
如图21，在remote UE被配置了非授权资源列表的情况下，当remote UE在非授权资源池列表里选择了非授权资源，根据被配置的非授权资源的使用参数执行LBT。如果remote UE接入被指配的非授权资源失败的累积次数大于阈值，那么remote UE直接选择授权资源进行sidelink通信过程。否则，remote UE占据该非授权频段进行通信过程。
接下来，说明relay UE辅助资源分配的实施例。
根据一个实施例，relay UE从基站接收指示用于sidelink通信的非授权频段资源的信息，并将所指示的非授权频段资源通知给remote UE。
或者，relay UE可以从基站接收指示用于sidelink通信的非授权频段资源的资源池的信息，为remote UE选择用于sidelink通信的非授权频段资源，并将所选择的非授权频段资源通知给remote UE。
例如，relay UE可以通过物理直通链路控制信道(PSCCH)进行该通知。
更具体地，eNB可以将remote UE非授权资源配置(ue-selected或是scheduled)通过RRC信令告知该remote UE所连接的relay UE。若RRC信令指示为ue-selected，那么relay UE可以为remote UE选择资源池中的资源，并通过PSCCH SCI 2A指示给remote UE sidelink通信过程非授权资源的配置情况。若RRC信令指示scheduled，并且被调度的资源是非授权资源，那么relay UE例如可以通过PSCCH SCI 2A 指示remote UE sidelink通信过程非授权资源的配置情况。Remote UE根据配置信息执行LBT，接入非授权频段。配置流程如图22所示。
在该示例实施例中，Relay UE通过辅助remote UE在RRC信令里获取非授权资源的配置信息，通过PSCCH指配给remote UE，remote UE直接执行LBT，若占据信道之后发送PSSCH则无需发送PSCCH。因此，能够节省remote UE的信令开销和能量消耗。
在这种情况下，在RRC里例如可以新增字段SLUnlicensed，SL-ConfigCommUnli(参见表1)以及SCI 2A sidelink控制信息(参见表4)。
此外，根据一个实施例，relay UE可以将已经配置给relay UE的非授权频段资源通知给remote UE。
更具体地，在relay UE已经被配置了非授权资源通过RRC信令(ue-selected)或者被激活了半静态的非授权资源的配置的情况下，relay UE可以根据自己非授权资源池的配置来未remote UE配置非授权资源。Relay UE例如可以通过PSCCH SCI 0指示remote UE sidelink通信过程非授权资源的配置情况。Remote UE根据配置信息执行LBT，接入非授权频段。配置流程如图23所示。
Relay UE将自己已经配置好的非授权资源共享给remote UE，通过PSCCH指配给remote UE，remote UE直接执行LBT，若占据信道之后发送PSSCH无需发送PSCCH。因此，能够节省remote UE的信令开销和能量消耗，并且节省向基站申请sidelink资源的信令开销。
在这种情况下，RRC里例如可以新增字段SLUnlicensed，SL-ConfigCommUnli(参见表1)，并且可以新增SCI 2A sidelink控制信息(参见表4)。
此外，根据一个实施例，relay UE可以针对待分配给remote UE的非授权频段资源的进行LBT，并将成功接入的非授权信道通知给remote UE。
更具体地，若relay UE为remote UE选择了非授权资源，为了节省remote UE执行LBT的能量消耗，relay UE可以为remote UE执行LBT然后接入非授权信道，并且例如通过PSCCH SCI 2A指示给remote UE。在这种情况下，remote UE接入非授权信道时可以执行type2LBT或不执行LBT。配置流程如图24所示。
这里对LBT的类型进行简要说明。当前阶段蜂窝网络中上行数据传输和下行数据传输信道使用非授权频段是采用动态调度的形式，当UE或eNB接入非授权信道之前执行LBT操作，标准规定至少执行空闲信道评估(CCA)检测，即能量检测，当检测到非授权频段的能量超过阈值的时候，表明该非授权信道已被占用。目前存在四种LBT类型:CAT1 LBT,即不执行LBT；CAT2 LBT,即执行LBT，不执行随机回退；CAT3 LBT,即执行LBT，回退竞争窗大小固定；CAT4 LBT,即执行LBT，回退竞争窗大小可变。3GPP标准里规定两种上行非授权信道接入类型：type1，即采用CAT4 LBT,LBT参 数根据信道接入优先级类(channel access priority class)来配置；type2，即执行25us的LBT操作。
当relay UE给reomte UE配置非授权信息，relay UE辅助remote UE执行LBT占据非授权信道，从而能够节省remote UE的信令开销和能量消耗。
在这种情况下，在RRC里例如可以新增字段SLUnlicensed，SL-ConfigCommUnli(参见表1)，并且可以新增SCI 2A sidelink控制信息(参见表4)。
Remote UE接入非授权信道的过程可以参见前面的示例实施例中描述的remote UE非授权资源使用过程。
图2示出了根据一个实施例的用于无线通信的电子装置的配置示例。
如图2所示，电子装置200包括处理电路210，处理电路210包括确定单元211、控制单元213和选择单元215。确定单元211和控制单元213的配置与前面描述的确定单元111和控制单元113类似。
选择单元215被配置为基于区域配置信息选择用于直通链路通信的非授权频段资源。
接下来，结合示例说明基于区域(zone)的非授权资源选择。
当remote UE处于RRC_IDLE状态时，remote UE执行sidelink通信的资源例如可以从SIB18里的commTxPoolNormalCommon资源池里选择。当配置了prioritylist(优先级列表)字段时，根据该字段优先级指示的资源池选择，若没有配置该字段，例如可以选择第一条资源池。由于remote UE在SIB 18里自选资源，容易造成多个remote UE在相同的子帧上选择相同的非授权资源，从而造成信道接入冲突。因此，在使用非授权资源的时候引入zone，eNB通过基于zone从SIB18里获取非授权资源，来降低remeto UE接入非授权信道冲突。图25示出了zone划分的示例。
例如，可以将非授权资源配置在SIB 18资源池列表里，并在SIB 18里配置UnlicensedEnabledZoneList和ZoneConfig。
当UE在SIB 18里选择资源池，若选中了非授权资源池，那么该UE检查自己的zone ID是否在UnlicensedEnabledZoneList列表里，若在列表里，那么该UE被允许使用选中的非授权资源。
该配置情况下，sidelink通信使用非授权资源的流程如图26所示：
非授权资源被配置在SIB 18资源池列表里，若remote UE选择了非授权资源池并且remote UE的zone ID包含在UnlicensedEnabledZoneList中，则UE执行LBT操作接入非授权资源根据配置信息。若LBT执行成功，那么占据该非授权资源。若LBT失败的子帧数大于最大的子帧数，那么UE例如可以直接选择授权资源池。
通过上述实施例，可以灵活地使能每个zone的非授权资源使用情况，有效地降低非授权信道接入冲突，降低时延。
在这种情况下，在RRC里例如可以新增字段SLUnlicensed，SL-ConfigCommUnli(参见表1)以及SCI 2Asidelink控制信息(参见表4)，另外可以引入zone相关的配置信息，参见表6。
表6：SIB18里的新增字段
Figure PCTCN2019085496-appb-000006
此外，也可以基于区域进行用于sidelink发现的非授权资源池选择。
具体地，当UE处于RRC_IDLE状态，relay UE和remote UE例如可以分别从SIB19里获取传输discovery的资源，若在SIB19里配置非授权资源池用于sidelink discovery过程，会产生非授权信道接入冲突问题。为了减少非授权资源池的接入碰撞，可以引入zone配置，同样如图25。eNB通过划分区域来控制sidelink使用非授权资源来发送discovery。
若在SIB19里配置了非授权资源，可以配置UnlicensedEnabledZoneList字段来指示可用SIB19里非授权资源的zone列表，以及ZoneConfig字段进行zone的配置。当relay UE或是remote UE在在SIB19里选定了非授权资源的时候，那么检查自己的zone ID是否在UnlicensedEnabledZoneList列表之中，若在该列表之中，那么该relay UE或remote UE被允许使用选中的非授权资源。SIB 19里的非授权资源的使用流程与图26所示的类似。
在这种情况下，在RRC里例如可以新增字段SLUnlicensed， SL-ConfigDiscUnli(参见表1)，同时可以引入zone相关的配置信息，参见表7。
表7：SIB19里的新增字段
Figure PCTCN2019085496-appb-000007
接下来，描述共享MCOT的实施例。
根据一个实施例，控制单元113、213还可以被配置为进行控制以将指示第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT的信息发送给第二用户设备，以与第二用户设备共享MCOT。
这里所说的共享MCOT是指第一用户设备将占用的非授权资源的剩余子帧分享给第二用户设备，在分享的这段时间内第一用户不再使用该非授权资源。
此外，第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT也可以用于直通链路发现。
对于relay UE和remote UE，根据一个实施例，relay UE从基站接收用于蜂窝链路的非授权频段资源的最大信道占用时间MCOT的信息，并且在MCOT内采用该非授权频段资源进行与remote UE的直通链路通信。
接下来，结合具体示例说明共享MCOT的方式。
示例1：当Uu link使用非授权资源的情况下，relay UE采用非授权资源进行sidelink通信，relay UE分享自己占据的非授权资源给remote UE并增加MCOTConfig字段，remote UE执行type 2LBT或者不执行LBT接入非授权信道。MCOTConfig字段包含剩余的非授权子帧数以及非授权信道接入参数。Remote UE在MCOT内使用非授权资源，remote UE可以不发送PSCCH，直接发送PSSCH为了节省可用的非授权子帧。信令配置如图27所示。
Relay UE通过PSCCH SCI 2A激活remote UE使用非授权资源，若relay UE若终止remote UE使用该非授权资源，那么通过PSCCH SCI 2A失活该非 授权资源的使用。
在这种情况下，relay UE在MCOTconfig配置非授权信道接入参数配置。
MCOTconfig IE可以包含可用的子帧数和非授权信道接入参数，所包含的字段例如如表8所示。
表8：MCOTconfig IE
Figure PCTCN2019085496-appb-000008
示例2：当Uu link使用非授权资源的情况下，remote UE采用非授权资源进行sidelink通信，remote UE分享自己占据的非授权资源给relay UE并增加MCOTConfig字段，relay UE执行type 2 LBT或者不执行LBT接入非授权信道。MCOTConfig字段包含剩余的非授权子帧数以及非授权信道接入参数。Relay UE在MCOT内使用非授权资源，relay UE可以不发送PSCCH，直接发送PSSCH为了节省可用的非授权子帧。信令配置如图28所示。
通过该配置，relay UE和remote UE共享MCOT的非授权信息，relay UE或remote UE可以执行简单的LBT(例如Type 2 LBT)或无需执行LBT操作接入非授权信道，降低信令开销、能量消耗和时延。
在这种情况下，remote UE在MCOTconfig配置非授权信道接入参数配置，例如可以包括NumberSubframe、PSSCH starting position、PSSCH ending symbol、Channel Access Type和Channel Access Priority Class，参见表8。
在上述示例1和示例2中，relay UE与remote UE之间共享MCOT，Uulink可以使用授权资源也可以使用非授权资源。
示例3：当Uu link使用非授权资源池传输sidelink相关的数据给relay UE，relay UE可以共享Uu link的非授权资源执行sidelink通信过程。流程如图29所示：eNB传输sidelink数据给relay UE，并将剩余的非授权子帧共享 给relay UE执行sidelink通信；eNB通过MCOTConfig字段告知relay UE接入非授权频段的参数配置；remote UE根据配置信息执行type 2 LBT或者不执行LBT占据该非授权信道。
eNB通过PDCCH DCI 5B激活relay UE使用非授权资源，并配置非授权资源的接入参数。若eNB终止relay UE使用该非授权资源，那么通过PDCCH DCI 5B失活该非授权资源的使用。
在这种情况下，eNB在MCOTconfig配置非授权信道接入参数配置，参见表8。
示例4：当relay UE或remote UE采用model B(“who is there”模式)发现执行发现过程，收端UE可以在MCOT之内接入非授权信道。
若发端UE发送discovery solicitation message使用非授权资源，在MCOT之内，收端UE可以执行type2 LBT接入该非授权信道发送discovery response message，或是收端UE可以不执行LBT接入该非授权信道发送discovery response message。discovery solicitation message应该包含MCOT的配置信息，至少包含信道接入参数，以及剩余的可用的非授权子帧数。这种方法可以有效地降低收端UE非授权资源的接入时延和能量消耗。该情况下的信令流程如图30所示。
在这种情况下，eNB在MCOTconfig配置非授权信道接入参数配置,参见表8。
本发明给出sidelink上非授权参数的配置流程，从而D2D用户可以获取非授权资源；本发明提出在D2D通信和发现过程使用非授权资源的流程，包括非授资源的配置和使用方法，以及UE在选择资源的时候，考虑用户的数据业务优先级或是链路质量或当前设备的电量，在提高系统容量的同时，降低UE使用非授权资源带来的延迟和服务质量下降问题，同时降低低功耗设备的能量消耗。
在前面对根据本发明实施例的电子装置的描述过程中，显然也公开了一些方法和过程。接下来，在不重复前面已经描述过的细节的情况下，给出对根据本发明实施例的方法的说明。
如图3所示，根据一个实施例的无线通信方法包括以下步骤。
在S310，确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件。
在S320，在满足该条件的情况下，控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信。
图4示出了根据另一个实施例的用于无线通信的电子装置的配置示例。电子装置400包括处理电路410，处理电路410包括控制单元411，被配置为控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信以及进行控制以将指示第一用户设备已占据的非授权频段资源的MCOT的信息发送给第二用户设备，以与第二用户设备共享该MCOT。
根据一个实施例，第一用户设备和第二用户设备中的一个工作为relay UE，第一用户设备和第二用户设备中的另一个工作为remote UE，其中remote UE经由relay UE接收来自基站的信息，并且relay UE从基站接收用于蜂窝链路的非授权频段资源的MCOT的信息，并且在该MCOT内采用该非授权频段资源进行与remote UE的直通链路通信。
根据一个实施例，第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT用于直通链路发现。
如图5所示，根据一个实施例的无线通信方法包括以下步骤。
在S510，控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信。
在S520，将指示第一用户设备已占据的非授权频段资源的MCOT的信息发送给第二用户设备，以与第二用户设备共享该MCOT。更具体地，第二用户设备可以根据MCOT配置执行LBT,以使用该非授权资源。
图6示出了根据另一个实施例的用于无线通信的电子装置的配置示例。电子装置600包括处理电路610，处理电路610包括控制单元611，被配置为进行控制以向用户设备发送指示信息，该指示信息指示用于用户设备的直通链路通信的非授权频段资源的获取方式，或者该指示信息指示非授权频段资源。
获取方式可以包括由基站指定非授权频段资源或者由用户设备在被配置的资源池或资源池列表中选择非授权频段资源。
如图7所示，根据一个实施例的无线通信方法包括以下步骤。
在S710，向用户设备发送指示信息，该指示信息指示用于用户设备的直通链路通信的非授权频段资源的获取方式，或者该指示信息指示非授权频段资源。
此外，本发明实施例还包括计算机可读介质，其包括可执行指令，当可执行指令被信息处理设备执行时，使得信息处理设备执行根据本发明实施例的方法。
作为示例，上述方法的各个步骤以及上述装置的各个组成模块和/或单元可以实施为软件、固件、硬件或其组合。在通过软件或固件实现的情况下，可以从存储介质或网络向具有专用硬件结构的计算机(例如图8所示的通用计算机800)安装构成用于实施上述方法的软件的程序，该计算机在安装有各种程序时，能够执行各种功能等。
在图8中，运算处理单元(即CPU)801根据只读存储器(ROM)802中存储的程序或从存储部分808加载到随机存取存储器(RAM)803的程序执行各种处理。在RAM 803中，也根据需要存储当CPU 801执行各种处理等等时所需的数据。CPU 801、ROM 802和RAM 803经由总线804彼此链路。输入/输出接口805也链路到总线804。
下述部件链路到输入/输出接口805：输入部分806(包括键盘、鼠标等等)、输出部分807(包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等，和扬声器等)、存储部分808(包括硬盘等)、通信部分809(包括网络接口卡比如LAN卡、调制解调器等)。通信部分809经由网络比如因特网执行通信处理。根据需要，驱动器810也可链路到输入/输出接口805。可拆卸介质811比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器810上，使得从中读出的计算机程序根据需要被安装到存储部分808中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可拆卸介质811安装构成软件的程序。
本领域的技术人员应当理解，这种存储介质不局限于图8所示的其中存储有程序、与设备相分离地分发以向用户提供程序的可拆卸介质811。可拆卸介质811的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM 802、存储部分808中包含的硬盘等等，其中存有程序，并且与包含它们的设备一起被分发给用户。
本发明的实施例还涉及一种存储有机器可读取的指令代码的程序产品。所述指令代码由机器读取并执行时，可执行上述根据本发明实施例的方法。
相应地，用于承载上述存储有机器可读取的指令代码的程序产品的存储介质也包括在本发明的公开中。所述存储介质包括但不限于软盘、光盘、磁光盘、存储卡、存储棒等等。
本申请的实施例还涉及以下电子设备。在电子设备用于基站侧的情况下，电子设备可以被实现为任何类型的gNB或演进型节点B(eNB)，诸如宏eNB和小eNB。小eNB可以为覆盖比宏小区小的小区的eNB，诸如微微eNB、微eNB和家庭(毫微微)eNB。代替地，电子设备可以被实现为任何其他类型的基站，诸如NodeB和基站收发台(BTS)。电子设备可以包括：被配置为控制无线通信的主体(也称为基站设备)；以及设置在与主体不同的地方的一个或多个远程无线头端(RRH)。另外，下面将描述的各种类型的终端均可以通过暂时地或半持久性地执行基站功能而作为基站工作。
电子设备用于用户设备侧的情况下，可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。此外，电子设备可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个或多个晶片的集成电路模块)。
[关于终端设备的应用示例]
图9是示出可以应用本公开内容的技术的智能电话2500的示意性配置的示例的框图。智能电话2500包括处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512、一个或多个天线开关2515、一个或多个天线2516、总线2517、电池2518以及辅助控制器2519。
处理器2501可以为例如CPU或片上系统(SoC)，并且控制智能电话2500的应用层和另外层的功能。存储器2502包括RAM和ROM，并且存储数据和由处理器2501执行的程序。存储装置2503可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口2504为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话2500的接口。
摄像装置2506包括图像传感器(诸如电荷耦合器件(CCD)和互补金属氧化物半导体(CMOS))，并且生成捕获图像。传感器2507可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。麦克风2508将输入到智能电话2500的声音转换为音频信号。输入装置2509包括例如被配置为检测显示装置2510的屏幕上的触摸的触摸传感器、小键 盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置2510包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话2500的输出图像。扬声器2511将从智能电话2500输出的音频信号转换为声音。
无线通信接口2512支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口2512通常可以包括例如基带(BB)处理器2513和射频(RF)电路2514。BB处理器2513可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路2514可以包括例如混频器、滤波器和放大器，并且经由天线2516来传送和接收无线信号。无线通信接口2512可以为其上集成有BB处理器2513和RF电路2514的一个芯片模块。如图9所示，无线通信接口2512可以包括多个BB处理器2513和多个RF电路2514。虽然图9示出其中无线通信接口2512包括多个BB处理器2513和多个RF电路2514的示例，但是无线通信接口2512也可以包括单个BB处理器2513或单个RF电路2514。
此外，除了蜂窝通信方案之外，无线通信接口2512可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口2512可以包括针对每种无线通信方案的BB处理器2513和RF电路2514。
天线开关2515中的每一个在包括在无线通信接口2512中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线2516的连接目的地。
天线2516中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口2512传送和接收无线信号。如图9所示，智能电话2500可以包括多个天线2516。虽然图9示出其中智能电话2500包括多个天线2516的示例，但是智能电话2500也可以包括单个天线2516。
此外，智能电话2500可以包括针对每种无线通信方案的天线2516。在此情况下，天线开关2515可以从智能电话2500的配置中省略。
总线2517将处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512以及辅助控制器2519彼此连接。电池2518经由馈线向图9所示的智能电话2500的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器2519例如在睡眠模式下操作智能电话 2500的最小必需功能。
在图9所示的智能电话2500中，根据本发明实施例的用户设备侧的设备的收发装置可以由无线通信接口2512实现。根据本发明实施例的用户设备侧的电子装置或信息处理设备的处理电路和/或各单元的功能的至少一部分也可以由处理器2501或辅助控制器2519实现。例如，可以通过由辅助控制器2519执行处理器2501的部分功能而减少电池2518的电力消耗。此外，处理器2501或辅助控制器2519可以通过执行存储器2502或存储装置2503中存储的程序而执行根据本发明实施例的用户设备侧的电子装置或信息处理设备的处理电路和/或各单元的功能的至少一部分。
[关于基站的应用示例]
图10是示出可以应用本公开内容的技术的基站例如演进型基站(eNB)的示意性配置的示例的框图。eNB 2300包括一个或多个天线2310以及基站设备2320。基站设备2320和每个天线2310可以经由射频(RF)线缆彼此连接。
天线2310中的每一个均包括单个或多个天线元件(诸如包括在多输入多输出(MIMO)天线中的多个天线元件)，并且用于基站设备2320发送和接收无线信号。如图10所示，eNB 2300可以包括多个天线2310。例如，多个天线2310可以与eNB 2300使用的多个频带兼容。虽然图10示出其中eNB 2300包括多个天线2310的示例，但是eNB 2300也可以包括单个天线2310。
基站设备2320包括控制器2321、存储器2322、网络接口2323以及无线通信接口2325。
控制器2321可以为例如CPU或DSP，并且操作基站设备2320的较高层的各种功能。例如，控制器2321根据由无线通信接口2325处理的信号中的数据来生成数据分组，并经由网络接口2323来传递所生成的分组。控制器2321可以对来自多个基带处理器的数据进行捆绑以生成捆绑分组，并传递所生成的捆绑分组。控制器2321可以具有执行如下控制的逻辑功能：该控制诸如为无线资源控制、无线承载控制、移动性管理、接纳控制和调度。该控制可以结合附近的eNB或核心网节点来执行。存储器2322包括RAM和ROM，并且存储由控制器2321执行的程序和各种类型的控制数据(诸如终端列表、传输功率数据以及调度数据)。
网络接口2323为用于将基站设备2320连接至核心网2324的通信接口。控制器2321可以经由网络接口2323而与核心网节点或另外的eNB进行通信。在此情况下，eNB 2300与核心网节点或其他eNB可以通过逻辑接口(诸如S1接口和X2接口)而彼此连接。网络接口2323还可以为有线通信接口或用于无线回程线路的无线通信接口。如果网络接口2323为无线通信接口，则与由无线通信接口2325使用的频带相比，网络接口2323可以使用较高频带用于无线通信。
无线通信接口2325支持任何蜂窝通信方案(诸如长期演进(LTE)和LTE-先进)，并且经由天线2310来提供到位于eNB 2300的小区中的终端的无线连接。无线通信接口2325通常可以包括例如BB处理器2326和RF电路2327。BB处理器2326可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行层(例如L1、介质访问控制(MAC)、无线链路控制(RLC)和分组数据汇聚协议(PDCP))的各种类型的信号处理。代替控制器2321，BB处理器2326可以具有上述逻辑功能的一部分或全部。BB处理器2326可以为存储通信控制程序的存储器，或者为包括被配置为执行程序的处理器和相关电路的模块。更新程序可以使BB处理器2326的功能改变。该模块可以为插入到基站设备2320的槽中的卡或刀片。可替代地，该模块也可以为安装在卡或刀片上的芯片。同时，RF电路2327可以包括例如混频器、滤波器和放大器，并且经由天线2310来传送和接收无线信号。
如图10所示，无线通信接口2325可以包括多个BB处理器2326。例如，多个BB处理器2326可以与eNB 2300使用的多个频带兼容。如图10所示，无线通信接口2325可以包括多个RF电路2327。例如，多个RF电路2327可以与多个天线元件兼容。虽然图10示出其中无线通信接口2325包括多个BB处理器2326和多个RF电路2327的示例，但是无线通信接口2325也可以包括单个BB处理器2326或单个RF电路2327。
在图10所示的eNB 2300中，根据本发明实施例的基站侧的设备的收发装置可以由无线通信接口2325实现。根据本发明实施例的基站侧的电子装置或信息处理设备的处理电路和/或各单元的功能的至少一部分也可以由控制器2321实现。例如，控制器2321可以通过执行存储在存储器2322中的程序而执行根据本发明实施例的基站侧的电子装置或信息处理设备的处理电路和/或各单元的功能的至少一部分。
在上面对本发明具体实施例的描述中，针对一种实施方式描述和/或示出的特征可以用相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、要素、步骤或组件的存在，但并不排除一个或更多个其它特征、要素、步骤或组件的存在或附加。
在上述实施例和示例中，采用了数字组成的附图标记来表示各个步骤和/或单元。本领域的普通技术人员应理解，这些附图标记只是为了便于叙述和绘图，而并非表示其顺序或任何其他限定。
此外，本发明的方法不限于按照说明书中描述的时间顺序来执行，也可以按照其他的时间顺序地、并行地或独立地执行。因此，本说明书中描述的方法的执行顺序不对本发明的技术范围构成限制。
尽管上面已经通过对本发明的具体实施例的描述对本发明进行了披露，但是，应该理解，上述的所有实施例和示例均是示例性的，而非限制性的。本领域的技术人员可在所附权利要求的精神和范围内设计对本发明的各种修改、改进或者等同物。这些修改、改进或者等同物也应当被认为包括在本发明的保护范围内。

Claims (32)

  1. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件；以及
    在满足所述条件的情况下，控制所述第一用户设备利用非授权频段资源与所述第二用户设备进行直通链路通信。
  2. 根据权利要求1所述的电子装置，其中，所述条件与以下方面中的一项或更多项有关：
    要进行的直通链路通信的服务优先级；
    所述第一用户设备与所述第二用户设备之间的当前链路质量；
    所述第一用户设备和/或所述第二用户设备先前针对非授权频段资源进行的载波监听的失败次数；
    所述第一用户设备和/或所述第二用户设备的剩余电量；以及
    在基站将待由所述第一用户设备和所述第二用户设备中的一个转发至所述第一用户设备和所述第二用户设备中的另一个的信息发送给所述第一用户设备和所述第二用户设备中的所述一个的过程产生中的延迟。
  3. 根据权利要求2所述的电子装置，其中，所述服务优先级包括近距业务数据分组优先级PPPP。
  4. 根据权利要求2所述的电子装置，其中，所述链路质量包括参考信号接收功率RSRP。
  5. 根据权利要求2所述的电子装置，其中，所述失败次数包括在先前预定长度的时间窗内的载波监听失败的子帧数。
  6. 根据权利要求2所述的电子装置，其中，所述延迟包括由所述基站对用于发送所述信息的非授权频段资源进行载波监听而造成的延迟。
  7. 根据权利要求1所述的电子装置，其中，所述处理电路还被配置为根据来自基站的第一指示信息确定非授权频段资源的获取方式，所述获取方式包括：
    由所述基站指定所述非授权频段资源；或者
    由用户设备在被配置的资源池或资源池列表中选择所述非授权频段资源。
  8. 根据权利要求7所述的电子装置，其中，所述第一指示信息被包括在无线资源控制RRC信令中。
  9. 根据权利要求7所述的电子装置，其中，所述被配置的资源池或资源池列表通过RRC信令或系统信息块指示。
  10. 根据权利要求1所述的电子装置，其中，所述处理电路还被配置为根据来自基站的第二指示信息确定用于所述直通链路通信的非授权频段资源。
  11. 根据权利要求10所述的电子装置，其中，所述第二指示信息通过物理下行控制信道PDCCH发送。
  12. 根据权利要求7-10中任一项所述的电子装置，其中，用于所述直通链路通信的非授权频段资源包括用于直通链路发现的非授权频段资源。
  13. 根据权利要求1所述的电子装置，其中，所述第一用户设备和所述第二用户设备中的一个工作为中继用户设备，所述第一用户设备和所述第二用户设备中的另一个工作为被中继用户设备，其中所述被中继用户设 备经由所述中继用户设备接收来自基站的信息。
  14. 根据权利要求13所述的电子装置，其中，所述中继用户设备将以下信息中的一项或更多项转发给所述被中继用户设备：
    指示用于所述直通链路通信的非授权频段资源的信息；以及
    指示用于所述直通链路通信的非授权频段资源的资源池的信息。
  15. 根据权利要求13所述的电子装置，其中，所述中继用户设备从基站接收指示用于所述直通链路通信的非授权频段资源的信息，并将所指示的非授权频段资源通知给所述被中继用户设备。
  16. 根据权利要求13所述的电子装置，其中，所述中继用户设备从基站接收指示用于所述直通链路通信的非授权频段资源的资源池的信息，为所述被中继用户设备选择用于所述直通链路通信的非授权频段资源，并将所选择的非授权频段资源通知给所述被中继用户设备。
  17. 根据权利要求13所述的电子装置，其中，所述中继用户设备将已经配置给所述中继用户设备的非授权频段资源通知给所述被中继用户设备。
  18. 根据权利要求13所述的电子装置，其中，所述中继用户设备针对待分配给被中继用户设备的非授权频段资源的进行载波监听，并将成功接入的非授权信道通知给被中继用户设备。
  19. 根据权利要求15-18中任一项所述的电子装置，其中，所述中继用户设备通过物理直通链路控制信道PSCCH进行所述通知。
  20. 根据权利要求1所述的电子装置，其中，所述处理电路还被配置为基于区域配置信息选择用于所述直通链路通信的非授权频段资源。
  21. 根据权利要求1所述的电子装置，其中，所述处理电路还被配置为：进行控制以将指示所述第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT的信息发送给所述第二用户设备，以与所述第二用户设备共享所述MCOT。
  22. 根据权利要求13所述的电子装置，其中，所述中继用户设备从基站接收用于蜂窝链路的非授权频段资源的最大信道占用时间MCOT的信息，并且在所述MCOT内采用该非授权频段资源进行与所述被中继用户设备的直通链路通信。
  23. 根据权利要求21所述的电子装置，其中，所述第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT用于直通链路发现。
  24. 一种无线通信方法，包括：
    确定第一用户设备是否满足利用非授权频段资源与第二用户设备进行直通链路通信的条件；以及
    在满足所述条件的情况下，控制所述第一用户设备利用非授权频段资源与所述第二用户设备进行直通链路通信。
  25. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信；以及
    进行控制以将指示所述第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT的信息发送给所述第二用户设备，以与所述第二用户设备共享所述MCOT。
  26. 根据权利要求25所述的电子装置，其中，所述第一用户设备和所 述第二用户设备中的一个工作为中继用户设备，所述第一用户设备和所述第二用户设备中的另一个工作为被中继用户设备，其中所述被中继用户设备经由所述中继用户设备接收来自基站的信息，并且
    所述中继用户设备从基站接收用于蜂窝链路的非授权频段资源的MCOT的信息，并且在该MCOT内采用该非授权频段资源进行与所述被中继用户设备的直通链路通信。
  27. 根据权利要求25所述的电子装置，其中，所述第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT用于直通链路发现。
  28. 一种无线通信方法，包括：
    控制第一用户设备利用非授权频段资源与第二用户设备进行直通链路通信；以及
    将指示所述第一用户设备已占据的非授权频段资源的最大信道占用时间MCOT的信息发送给所述第二用户设备，以与所述第二用户设备共享所述MCOT。
  29. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    进行控制以向用户设备发送指示信息，
    其中，所述指示信息指示用于所述用户设备的直通链路通信的非授权频段资源的获取方式，或者
    所述指示信息指示所述非授权频段资源。
  30. 根据权利要求29所述的电子装置，其中，所述获取方式包括：
    由所述基站指定所述非授权频段资源；或者
    由所述用户设备在被配置的资源池或资源池列表中选择所述非授权频段资源。
  31. 一种无线通信方法，包括：
    向用户设备发送指示信息，
    其中，所述指示信息指示用于所述用户设备的直通链路通信的非授权频段资源的获取方式，或者
    所述指示信息指示所述非授权频段资源。
  32. 一种计算机可读介质，其包括可执行指令，当所述可执行指令被信息处理设备执行时，使得所述信息处理设备执行根据权利要求24、28或31所述的方法。
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