WO2020088366A1 - 发送功率的确定方法和装置 - Google Patents

发送功率的确定方法和装置 Download PDF

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Publication number
WO2020088366A1
WO2020088366A1 PCT/CN2019/113287 CN2019113287W WO2020088366A1 WO 2020088366 A1 WO2020088366 A1 WO 2020088366A1 CN 2019113287 W CN2019113287 W CN 2019113287W WO 2020088366 A1 WO2020088366 A1 WO 2020088366A1
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WIPO (PCT)
Prior art keywords
path loss
terminal device
side link
transmission power
determining
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PCT/CN2019/113287
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English (en)
French (fr)
Inventor
张兴炜
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华为技术有限公司
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Publication of WO2020088366A1 publication Critical patent/WO2020088366A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the present application relates to the field of communication technology, and in particular, to a method and device for determining transmission power.
  • D2D Device to device
  • SA Sidelink
  • the path loss from the terminal device to the Long Term Evolution (LTE) base station (Evolved Node B, eNB) is used as the path loss of the terminal device on the side link to determine the transmission power of the side link .
  • LTE Long Term Evolution
  • eNB evolved Node B
  • 5G terminal equipment supports dual connectivity, that is, one terminal equipment is connected to two base stations, and the base station can be eNB or 5G New Radio Access Technology (New Radio Access Technology, NR) base station (gNodeB, gNB).
  • the carrier group of one base station is a master cell group (MCG)
  • the carrier group of another base station is a secondary cell group (Secondary Cell Group, SCG).
  • the present application provides a method and device for determining transmission power to improve the rationality of the determined transmission power.
  • the present application provides a method for determining transmission power.
  • the path loss of the side link is determined according to the path loss from the terminal device to at least one device, and the side link is determined according to the path loss of the side link.
  • the transmission power thereby, makes the determined transmission power more reasonable, so as to reduce the interference to the base station or other devices.
  • the at least one device includes at least one of a 5G New Radio (NR) base station gNB, a group head, a receiving end device, and a synchronization source of the terminal device.
  • NR 5G New Radio
  • determining the transmission power of the side link includes:
  • At least one device includes at least two devices; the path loss from the terminal device to each of the at least two devices can be obtained; the minimum path among the at least two path losses can be determined
  • the loss is the path loss of the side link. Therefore, the loss of the determined side link is more reasonable, and the transmission power of the side link determined according to the path loss of the side link is also more reasonable. Therefore, interference to other base stations or other devices can be reduced.
  • the terminal device is connected to at least two network devices, the at least two network devices include a first network device, and the first network device is a main base station of the terminal device;
  • the determining the path loss of the side link according to the path loss from the terminal device to at least one device includes:
  • the path loss from the terminal device to the first network device is a path loss of a side link.
  • the terminal device is a long-term evolution-new wireless access technology-dual connection EN-DC mode, and the path loss of the side link is the path loss from the terminal device to the evolved base station eNB; or,
  • the terminal device is a new wireless access technology-long-term evolution-dual connection NE-DC mode, and the path loss of the side link is the path loss from the terminal device to the gNB; or,
  • the terminal device is a new wireless access technology-new wireless access technology-dual connection NN-DC mode or multiple connection mode, and the path loss of the side link is the path from the terminal device to the gNB corresponding to the primary cell group MCG loss.
  • the interference to the main base station can be reduced.
  • the at least one device includes: a group head or a synchronization source of the terminal device; determining that the path loss from the terminal device to the synchronization source or the group head is a side link path loss. Therefore, the interference to the synchronization source or the group head can be reduced.
  • the path loss from the terminal device to the gNB is the path loss of the NR side link.
  • interference with gNB can be reduced.
  • the side link when the side link works on a carrier shared with the uplink, it is determined that the path loss from the terminal device to the eNB is the path loss of the side link; thus, it is reduced Interference to eNB. Or, in the case where the side link works on a dedicated carrier, it is determined that the path loss from the terminal device to the gNB is the path loss of the side link, thereby reducing interference to gNB.
  • the method further includes:
  • the configuration signaling is at least one of the following signalings: broadcast message; system message; radio resource control RRC signaling; media access control layer signaling; downlink control information.
  • the way to determine the path loss is configured by the base station, which is easy to modify, more flexible, and reduces the interference to the base station.
  • the present application provides a device for determining transmission power, including:
  • the processing module is used to determine the path loss of the side link according to the path loss from the terminal device to at least one device, the at least one device includes a 5G base station gNB, a group head, a receiving end device and a synchronization source of the terminal device At least one of
  • the processing module is further configured to determine the transmission power of the side link according to the path loss of the side link.
  • the at least one device includes at least two devices
  • the processing module is specifically configured to obtain the path loss from the terminal device to each of the at least two devices; determine the smallest path loss among the at least two path losses to be the path loss of the side link.
  • the terminal device is connected to at least two network devices, the at least two network devices include a first network device, and the first network device is a main base station of the terminal device;
  • the processing module is specifically configured to determine that the path loss from the terminal device to the first network device is a path loss of a side link.
  • the terminal device is a long-term evolution-new radio access technology-dual connection EN-DC mode
  • the path loss of the side link is the path loss from the terminal device to the evolved base station eNB ;
  • the terminal device is a new wireless access technology-long-term evolution-dual connection NE-DC mode, and the path loss of the side link is the path loss from the terminal device to the gNB; or,
  • the terminal device is a new wireless access technology-new wireless access technology-dual connection NN-DC mode or multiple connection mode, and the path loss of the side link is the path from the terminal device to the gNB corresponding to the primary cell group MCG loss.
  • the at least one device includes: a group head or a synchronization source of the terminal device;
  • the processing module is specifically configured to determine that the path loss from the terminal device to the synchronization source or the group head is the path loss of the side link.
  • the processing module is specifically configured to determine that the path loss from the terminal device to the gNB is the path loss of the NR side link.
  • the processing module is specifically used to determine that the path loss from the terminal device to the eNB is the side link when the side link works on a carrier shared with the uplink Path loss; or, in the case where the side link is working on a dedicated carrier, the path loss from the terminal device to the gNB is determined to be the path loss of the side link.
  • the method further includes: a receiving module, configured to receive configuration signaling sent by the network device; wherein, the configuration signaling indicates a path loss from the terminal device to one of the at least one device Is the path loss of the side link; the processing module is specifically configured to determine that the path loss indicated by the configuration signaling from the terminal device to one of the at least one device is the path loss of the side link.
  • the configuration signaling is at least one of the following signalings: broadcast message; system message; radio resource control RRC signaling; media access control MAC layer signaling; downlink control information.
  • the processing module is specifically configured to determine the transmission power of the side channel data channel of the terminal device; or, determine the transmission of the side channel control channel of the terminal device Power; or, determine the transmission power of the side channel broadcast channel of the terminal device; or, determine the transmission power of the reference signal of the side device's side link; or, determine the side device of the terminal device The transmission power of the link's synchronization signal.
  • the present application provides an apparatus for determining transmission power, including a memory and a processor, where the processor executes program instructions in the memory for implementing the control information transmission method described in the first aspect.
  • the present application provides a storage medium that is used to store a computer program, and the computer program is used to implement the transmission power determination method described in the first aspect.
  • Figure 1 is a schematic diagram of an EN-DC scenario provided by this application.
  • Figure 2 is a schematic diagram of the NE-DC scenario provided by this application.
  • Figure 3 is a schematic diagram of the NN-DC scenario provided by this application.
  • FIG. 4 is a schematic diagram of a dual connection scenario provided by this application.
  • FIG. 5 is a schematic flowchart of a method for determining transmission power provided by the present application.
  • FIG. 6 is a schematic flowchart of another method for determining a transmission power provided by this application.
  • FIG. 7 is a schematic flowchart of another method for determining transmission power provided by the present application.
  • FIG. 8 is a schematic flowchart of another method for determining a transmission power provided by this application.
  • FIG. 9 is a schematic flowchart of another method for determining a transmission power provided by this application.
  • FIG. 10 is a schematic flowchart of another method for determining transmission power provided by the present application.
  • FIG. 11 is a schematic structural diagram of a device for determining transmission power according to the present invention.
  • FIG. 12 is a schematic diagram of a hardware structure of a device for determining transmission power provided by the present application.
  • the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the technical solution shown in this application can be applied to a 5G communication system, for example, a vehicle network (V2X) system, a D2D system, and a machine type communication (MTC) system in the 5G communication system. It can also be applied to LTE communication systems, such as V2X system, D2D system, MTC system in LTE communication system, etc., and can also be applied to Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UMTS Terrestrial Radio) Access (Network, UTRAN) system, or Global System for Mobile (GSM) / Enhanced Data Rate GSM Evolution (Enhanced Data Rate for GSM Evolution, EDGE) system wireless access network (GSM EDGE Radio Radio Access Network , GERAN) architecture.
  • V2X vehicle network
  • MTC machine type communication
  • the technical solution shown in this application can also be applied to other communication systems, such as: Public Land Mobile Network (PLMN) system, 6G system, and subsequent communication systems, as long as the communication system involves determining the side chain
  • PLMN Public Land Mobile Network
  • 6G 6G
  • subsequent communication systems as long as the communication system involves determining the side chain
  • the path loss of the road can be applied to the technical solution of this application, which is not limited in this application.
  • the terminal device may be a device in a V2X system, a device in a D2D system, a device in an MTC system, or the like.
  • terminal equipment can refer to industrial robots, industrial automation equipment, user equipment (User Equipment), access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, Terminal, wireless terminal equipment, user agent or user device.
  • the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant (PDA), a wireless Communication-enabled handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or networks after 5G, or terminal devices in future evolved PLMN networks. This is not limited.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the present application also relates to network equipment, which may be equipment for communicating with terminal equipment.
  • the network device may be a gNB in a 5G system, an eNB in an LTE system, or a base station (NodeB, NB) in a WCDMA system, a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system
  • the network device may also be a relay station, an access point, an in-vehicle device, a wearable device, a network-side device in a network after 5G or a network device in a future-evolving PLMN network, a roadside site unit (RSU), etc. Therefore, this application is not limited.
  • the technical solutions provided by the present application can be applied to the scenario of dual connection or multi-connection, and some of the technical solutions can also be applied to the scenario of single connection.
  • the number of base stations connected to the terminal device is one, which may be connected to the eNB, or to gNB, or a base station in a new wireless communication system in the future.
  • the number of base stations connected to the terminal device in the dual connection scenario is 2, and the number of base stations connected to the terminal device in the multi-connection scenario exceeds 2.
  • the dual connectivity scenarios include but are not limited to the scenarios shown in Figures 1-3, where Figure 1 is a schematic diagram of the EN-DC scenario provided by this application, Figure 2 is a schematic diagram of the NE-DC scenario provided by this application, and Figure 3 is Schematic diagram of the NN-DC scenario provided by this application.
  • the terminal device is connected to two base stations, namely an LTE base station eNB and a 5G NR base station gNB, and the eNB is the main terminal device
  • the carrier group of the eNB is the master cell group (MCG)
  • the carrier group of the gNB is the secondary cell group (Secondary Cell Group, SCG).
  • the terminal device is connected to two base stations, respectively 5G NR base station gNB and LTE base station eNB, gNB is the main connection When entering a cell, the carrier group of gNB is MCG, and the carrier group of eNB is SCG.
  • EN-DC and NE-DC are special cases in the dual connectivity of multiple wireless access technologies (Multiple Radio Access Technology Dual Connectivity, MR-DC).
  • the two base stations connected by the terminal equipment are 5G NR base stations gNB, which are gNB1 and gNB2, respectively, where gNB1 is the terminal equipment
  • the primary access cell, the gNB1 carrier group of the primary access cell is MCG, and the gNB2 carrier group is SCG.
  • This application determines the path loss of the side link based on the path loss from the terminal device to at least one device, and determines the transmission power of the side link according to the path loss of the side link, thereby making the determined transmission power more reasonable, To reduce the interference to the base station or other equipment.
  • the at least one device includes at least one of a 5G base station gNB, a group head, a receiving end device, and a synchronization source of the terminal device.
  • FIG. 4 is a schematic diagram of a dual connection scenario provided by this application, terminal device A Connected to base station 1 on carrier 1, and connected to base station 2 on carrier 2.
  • base station 1 may also support carrier 2, but carrier 2 is not configured for terminal device A to use.
  • Base station 2 may also support carrier 1, but carrier 1 is not configured for terminal device A to use. Therefore, in a dual connection scenario, if terminal equipment A is closer to base station 1 and farther from base station 2, if terminal equipment A uses carrier 2 ’s path loss on carrier 2 to calculate the transmission power of the side link, the The transmission power may interfere with base station 1.
  • FIG. 5 is a schematic flowchart of a method for determining transmission power provided by the present application. As shown in FIG. 5, this embodiment is executed by a terminal device, and the method in this embodiment is as follows:
  • S501 Obtain the path loss from the terminal device to each of the at least two devices.
  • the terminal device is a side terminal sender terminal device.
  • the equipment includes, but is not limited to, various types of base stations, group heads, synchronization equipment of receiving end equipment or terminal equipment, and the like.
  • the base station is, for example, a base station gNB of NR and a base station eNB of LTE.
  • the synchronization source of the terminal device is, for example, a satellite, a base station, or another terminal device that provides a synchronization signal.
  • the group head that is, the group head of the communication group of the terminal equipment, is a role of managing the joining or leaving of a group member in a group of communication terminals, and sometimes also has the function of resource allocation.
  • the terminal device group is the group where the terminal device is located.
  • the first car in the front of the team head car
  • the last car in the rear of the team tail car
  • a car located anywhere in the team preferably in the middle of the team.
  • the receiver device is a receiver terminal device on the side link.
  • Each application scenario may include multiple devices, where acquiring the path loss from the terminal device to each of the at least two devices refers to acquiring the path loss from the terminal device to all or some of the multiple devices.
  • the devices are gNB and eNB, respectively, and the path loss of the terminal device to gNB and eNB, respectively, can be obtained.
  • the device further includes: a synchronization source, which can obtain the path loss of the terminal device to gNB, eNB, and the synchronization source; it can also obtain the path loss of the terminal device to gNB and the synchronization source; Path loss to eNB and synchronization source.
  • a synchronization source which can obtain the path loss of the terminal device to gNB, eNB, and the synchronization source; it can also obtain the path loss of the terminal device to gNB and the synchronization source; Path loss to eNB and synchronization source.
  • the device further includes: a group head, which can obtain the path loss of the terminal device to gNB, eNB, and group head respectively; it can also obtain the path loss of the terminal device to gNB and the group head separately; and can also obtain the terminal device separately. Path loss to eNB and group head.
  • the receiving end device which can obtain the path loss of the terminal device to the gNB and the receiving end device respectively; it can also obtain the path loss of the terminal device to the eNB and the receiving end device; The path loss to the eNB, gNB, and the receiving device respectively.
  • Figure 1 it also includes: synchronization source and group head, you can get the path loss of the terminal device to eNB, gNB, synchronization source and group head respectively; you can also get the terminal device to eNB, gNB, synchronization source and group respectively Path loss of at least two devices in the header.
  • S502 Determine the smallest path loss among the at least two path losses as the path loss of the side link.
  • the devices in FIG. 1 are gNB and eNB, respectively. Assuming that the path loss from the terminal device to the eNB is smaller than the path loss from the terminal device to the gNB, the path from the terminal device to the eNB is determined. The loss is the path loss of the side link.
  • the devices are gNB and eNB, respectively. Assuming that the path loss from the terminal device to the gNB is smaller than the path loss from the terminal device to the eNB, it is determined that the path loss from the terminal device to the gNB is the path loss of the side link.
  • the devices are gNB1 and gNB2. Assuming that the path loss from the terminal device to gNB1 is smaller than the path loss from the terminal device to gNB2, it is determined that the path loss from the terminal device to gNB1 is the path loss of the side link.
  • the terminal device to the synchronization source determines the terminal device to the synchronization source
  • the path loss of the device is the path loss of the side link.
  • the path loss from the terminal device to the group head is determined to be the path loss of the side link.
  • S503 Determine the transmission power of the side link according to the path loss of the side link.
  • ways to determine the transmission power of the terminal device include but are not limited to the following ways:
  • P is the transmission power of the side link
  • PL is the path loss of the side link
  • the path loss of the side link is determined according to the path loss from the terminal device to at least two devices, so that the determined side link loss is more reasonable, and then determined according to the path loss of the side link
  • the transmission power of the side link is also more reasonable, therefore, the interference to other base stations or other devices can be reduced.
  • FIG. 6 is a schematic flowchart of another method for determining transmission power provided by the present application.
  • the terminal device is connected to at least two network devices, as shown in FIGS. 1 to 3, where at least two networks
  • the device includes a first network device.
  • the first network device is the main base station of the terminal device.
  • eNB is the first network device.
  • gNB is the first network device.
  • gNB1 is the first network device.
  • the method of this embodiment is shown in Figure 6:
  • S601 Determine the path loss of the side link according to the path loss from the terminal device to the first network device.
  • the terminal device is in the EN-DC mode, and the path loss of the side link is the path loss from the terminal device to the eNB.
  • the terminal device is in NE-DC mode, and the path loss of the side link is the path loss from the terminal device to gNB.
  • the terminal device is in the NN-DC mode, and the path loss of the side link is the path loss from the terminal device to gNB1 (gNB corresponding to MCG).
  • the path loss of the side link is the path loss from the terminal device to the gNB corresponding to the MCG.
  • S602 Determine the transmission power of the side link according to the path loss of the side link.
  • This step is similar to S503.
  • S503 For a detailed description, please refer to S503, which will not be repeated here.
  • the side link transmission power determined according to the path loss of the side link is more reasonable, thereby reducing the Base station interference.
  • FIGS. 7 to 10 can be applied to a single-connected scenario, a dual-connected scenario, or a multi-connected scenario.
  • the technical solutions in each scenario are similar, and details are not described in this application.
  • FIG. 7 is a schematic flowchart of another method for determining a transmission power provided by this application, as shown in FIG. 7:
  • S701 Determine the path loss of the side link according to the path loss from the terminal device to the synchronization source or group head.
  • the synchronization source includes but is not limited to a satellite, a base station (eNB or gNB), or a terminal device that provides a synchronization signal.
  • the head of the group can be the first car in the front of the team (the first car), or the last car in the team (the last car), or it can be located anywhere in the team, preferably in the middle of the team.
  • S702 Determine the transmission power of the side link according to the path loss of the side link.
  • This step is similar to S503.
  • S503 For a detailed description, please refer to S503, which will not be repeated here.
  • the side link transmission power determined according to the path loss of the side link is more reasonable, thereby reducing To interfere with the synchronization source or group head.
  • FIG. 8 is a schematic flowchart of another method for determining a transmission power provided by this application.
  • the terminal device has both an LTE side link module and an NR side link module, as shown in FIG. 8:
  • S801 Determine the path loss of the side link according to the side link working on the terminal device.
  • One possible implementation manner is: if the terminal device works on the LTE side link, determine that the path loss from the terminal device to the eNB is the path loss of the LTE side link.
  • Another possible implementation manner is: if the terminal device works on the NR side link, determine that the path loss from the terminal device to the gNB is the path loss of the NR side link.
  • S802 Determine the transmission power of the side link according to the path loss of the side link.
  • This step is similar to S503.
  • S503 For a detailed description, please refer to S503, which will not be repeated here.
  • the transmission power of the side link determined according to the path loss of the side link is more reasonable, thereby reducing the gNB Interference.
  • FIG. 9 is a schematic flowchart of another method for determining a transmission power provided by this application, as shown in FIG. 9:
  • S901 Determine whether the side link works on a dedicated carrier.
  • S902 is performed, and if the side link is operating on a dedicated carrier, S903 is performed.
  • S902 Determine that the path loss from the terminal device to the gNB is the path loss of the side link.
  • S903 Determine that the path loss from the terminal device to the eNB is the path loss of the side link.
  • S904 Determine the transmission power of the side link according to the path loss of the side link.
  • This step is similar to S503.
  • S503 For a detailed description, please refer to S503, which will not be repeated here.
  • the path loss from the terminal device to the eNB is determined to be the path loss of the side link, so that the side determined according to the path loss of the side link The transmission power of the downlink is more reasonable, thereby reducing the interference to the eNB.
  • the path loss from the terminal device to the gNB is determined to be the path loss of the side link, making the side link transmission power determined based on the path loss of the side link more reasonable, thereby , To reduce interference to gNB.
  • FIG. 10 is a schematic flowchart of another method for determining a transmission power provided by this application, as shown in FIG. 10:
  • S1001 Receive configuration signaling sent by a network device.
  • Network equipment includes but is not limited to eNB or gNB.
  • the configuration signaling includes indicating that the path loss from the terminal device to one of the at least one device is the path loss of the side link.
  • the path loss from the terminal device to the group head may be indicated in the configuration signaling as the path loss of the side link; or the path loss of the synchronization source from the terminal device to the terminal device may be indicated in the configuration signaling as the side The path loss of the downlink; or the configuration signaling indicates the path loss from the terminal device to the eNB as the path loss of the side link; or the configuration signaling indicates the path loss from the terminal device to the gNB as the side link Path loss; or in the fleet scenario, the configuration signaling indicates that the path loss of the terminal device to the head car or tail car or any car in the fleet is used as the path loss of the side link.
  • S1002 Determine the path loss of the side link according to the configuration signaling.
  • the terminal device obtains the path loss from the terminal device to one of the at least one device indicated in the configuration signal according to the configuration signaling, and uses the path loss from the terminal device to one of the at least one device as the side link Path loss.
  • S1003 Determine the transmission power of the side link according to the path loss of the side link.
  • This step is similar to S503.
  • S503 For a detailed description, please refer to S503, which will not be repeated here.
  • the configuration signaling may be a broadcast message, such as: Master Information Block (Master Information Block, MIB), system messages, such as: System Information Block (System Information Block, SIB), Radio Resource Control (Radio Resource Control, RRC) Signaling, media access control (Media Access Control, MAC) layer signaling or downlink control information (Downlink Control Information, DCI).
  • Master Information Block MIB
  • system messages such as: System Information Block (System Information Block, SIB), Radio Resource Control (Radio Resource Control, RRC) Signaling, media access control (Media Access Control, MAC) layer signaling or downlink control information (Downlink Control Information, DCI).
  • the network device sends configuration signaling to the terminal device to instruct the terminal device to determine the path loss from the terminal device to a certain device as the path loss of the side link, so that the terminal device determines the path loss according to the side link path loss
  • the transmission power of the terminal device and the way to determine the path loss are configured by the base station, which is easy to modify, more flexible, and reduces interference to the base station.
  • FIG. 11 is a schematic structural diagram of an apparatus for determining transmission power according to the present invention.
  • the apparatus for determining transmission power 11 in this embodiment includes: a processing module 1101, configured to determine a sidewalk based on a path loss from a terminal device to at least one device Path loss of the link, the at least one device includes at least one of a 5G base station gNB, a group head, a receiving end device, and a synchronization source of the terminal device; the processing module 1101 is further configured to Path loss, determine the transmit power of the side link.
  • the at least one device includes at least two devices
  • the processing module 1101 is specifically configured to obtain the path loss from the terminal device to each of the at least two devices; determine the minimum path loss among the at least two path losses to be the path loss of the side link.
  • the terminal device is connected to at least two network devices, the at least two network devices include a first network device, and the first network device is a main base station of the terminal device;
  • the processing module 1101 is specifically configured to determine that the path loss from the terminal device to the first network device is a path loss of a side link.
  • the terminal device is a long-term evolution-new radio access technology-dual connection EN-DC mode
  • the path loss of the side link is the path loss from the terminal device to the evolved base station eNB;
  • the terminal device is a new wireless access technology-long-term evolution-dual connection NE-DC mode, and the path loss of the side link is the path loss from the terminal device to the gNB; or,
  • the terminal device is a new wireless access technology-new wireless access technology-dual connection NN-DC mode or multiple connection mode, and the path loss of the side link is the path from the terminal device to the gNB corresponding to the primary cell group MCG loss.
  • the at least one device includes: a group head or a synchronization source of the terminal device;
  • the processing module 1101 is specifically configured to determine that the path loss from the terminal device to the synchronization source or the group head is the path loss of the side link.
  • the processing module 1101 is specifically configured to determine that the path loss from the terminal device to the gNB is the path loss of the NR side link.
  • the processing module 1101 is specifically configured to determine that the path loss from the terminal device to the eNB is the path loss of the side link when the side link works on a carrier shared with the uplink; or In the case where the side link works on a dedicated carrier, it is determined that the path loss from the terminal device to the gNB is the path loss of the side link.
  • it also includes:
  • the receiving module 1102 is configured to receive configuration signaling sent by a network device; wherein the configuration signaling indicates that the path loss from the terminal device to one of the at least one device is the path loss of the side link;
  • the processing module 1101 is specifically configured to determine that the path loss indicated by the configuration signaling from the terminal device to one of the at least one device is the path loss of the side link.
  • the configuration signaling is at least one of the following signaling:
  • the processing module 1101 is specifically configured to determine the transmission power of the side channel data channel of the terminal device; or, determine the transmission power of the side channel control channel of the terminal device; or, Determining the transmission power of the broadcast channel of the side link of the terminal device; or, determining the transmission power of the reference signal of the side link of the terminal device; or, determining the synchronization of the side link of the terminal device The transmit power of the signal.
  • the apparatus of the embodiment shown in FIG. 11 can be correspondingly used to execute the technical solutions of the method embodiments shown in FIG. 5 to FIG. 10.
  • the implementation principles and technical effects are similar, and are not described here again.
  • the transmission power determining device 12 includes: a memory 121, a processor 122, and a communication interface 123, where the memory 121, the processor 122, and the communication interface 123 can communicate; for example, the memory 121, the processor 122 It can communicate with the communication interface 123 through a communication bus 124.
  • the memory 121 is used to store a computer program.
  • the processor 122 executes the computer program to implement the method shown in the embodiments shown in FIGS. 5-10.
  • the communication interface 123 may also include a transmitter and / or a receiver.
  • the processor may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC )Wait.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in this application may be directly implemented and completed by a hardware processor, or may be implemented and completed by a combination of hardware and software modules in the processor.
  • the present application provides a storage medium, which is used to store a computer program, and the computer program is used to implement the method for determining the transmission power described in the method embodiments in FIGS. 5 to 10 described above.
  • the present application provides a chip for supporting a device for determining transmission power to implement the functions shown in the embodiments of the present application (for example, determining the path loss of a side link according to the path loss from a terminal device to at least one device, so
  • the at least one device includes at least one of a 5G base station gNB, a group head, a receiving end device, and a synchronization source of the terminal device; according to the path loss of the side link, determining the transmission power of the side link, etc.
  • the chip is specifically used in a chip system.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the chip includes a processing unit.
  • the chip may further include a communication unit.
  • the processing unit may be, for example, a processor.
  • the communication unit For example, it can be an input / output interface, a pin or a circuit.
  • the processing unit performs all or part of the actions performed by each processing module in the embodiments of the present application, and the communication unit may perform corresponding receiving or sending actions, for example, receiving configuration signaling sent by the network device.
  • the processing module of the receiving device in this application may be a processing unit of the chip, and the receiving module or the sending module of the control device is a communication unit of the chip.
  • These computer program instructions can be provided to the processing unit of a general-purpose computer, special-purpose computer, embedded processing machine, or other programmable data processing device to produce a machine that enables the generation of instructions executed by the processing unit of the computer or other programmable data processing device
  • These computer program instructions may also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, the instructions The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to produce computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

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Abstract

本申请提供一种发送功率的确定方法和装置，通过根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，根据侧行链路的路径损耗，确定侧行链路的发送功率，从而，使得确定的发送功率更加合理，以减小对基站或者其他设备的干扰，可以应用于车联网，例如V2X、LTE-V、V2V等，或可以用于D2D，智能驾驶，智能网联车等领域。

Description

发送功率的确定方法和装置
本申请要求于2018年11月02日提交中国专利局、申请号为201811301946.6、申请名称为“发送功率的确定方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种发送功率的确定方法和装置。
背景技术
设备到设备(Device to Device，D2D)通信链路也称为侧行链路(Sidelink，SL)，通过复用现有移动通信网络的频谱资源，提高频谱利用率及最大限度的利用终端设备的射频功能。
现有技术中，采用终端设备到长期演进(Long Term Evolution，LTE)基站(Evolved Node B，eNB)的路径损耗作为终端设备在侧行链路上的路径损耗，确定侧行链路的发送功率。
在第5代(5th Generation，5G)移动通信技术中，5G终端设备支持双连接，即支持一个终端设备连接到两个基站，基站可以是eNB或者5G新无线接入技术(New Radio Access Technology，NR)基站(g Node B，gNB)。其中，一个基站的载波组为主小区组(Master Cell Group，MCG)，另一个基站的载波组为辅小区组(Secondary Cell Group，SCG)。
发明内容
本申请提供一种发送功率的确定方法和装置，提高确定的发送功率的合理性。
第一方面，本申请提供一种发送功率的确定方法，根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，根据侧行链路的路径损耗，确定侧行链路的发送功率，从而，使得确定的发送功率更加合理，以减小对基站或者其他设备的干扰。其中，所述至少一个设备包括5G新空口(New Radio，NR)基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个。
其中，确定侧行链路的发送功率，包括：
确定所述终端设备的侧行链路的数据信道的发送功率；或者，
确定所述终端设备的侧行链路的控制信道的发送功率；或者，
确定所述终端设备的侧行链路的广播信道的发送功率；或者，
确定所述终端设备的侧行链路的参考信号的发送功率；或者，
确定所述终端设备的侧行链路的同步信号的发送功率。
在一种可能的实现方式中，至少一个设备包括至少两个设备；可以通过获取所述终端设备到所述至少两个设备中每个设备的路径损耗；确定至少两个路径损耗中最小 的路径损耗为侧行链路的路径损耗。从而，使得确定的侧行链路的损耗更加合理，进而根据侧行链路的路径损耗确定的侧行链路发送功率也更加合理，因此，可以减小对其他基站或者其他设备的干扰。
在一种可能的实现方式中，所述终端设备连接到至少两个网络设备，所述至少两个网络设备包括第一网络设备，所述第一网络设备为所述终端设备的主基站；
所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
确定所述终端设备到所述第一网络设备的路径损耗为侧行链路的路径损耗。
其中几种可能的情况如下：
所述终端设备为长期演进-新无线接入技术-双连接EN-DC模式，所述侧行链路的路径损耗为终端设备到演进型基站eNB的路径损耗；或者，
所述终端设备为新无线接入技术-长期演进-双连接NE-DC模式，所述侧行链路的路径损耗为终端设备到gNB的路径损耗；或者，
所述终端设备为新无线接入技术-新无线接入技术-双连接NN-DC模式或多连接模式，所述侧行链路的路径损耗为终端设备到主小区组MCG对应的gNB的路径损耗。
从而，通过确定终端设备到主基站的路径损耗，确定侧行链路的路径损耗，再根据侧行链路的路径损耗，确定侧行链路的发送功率，可以减小对主基站的干扰。
在一种可能的实现方式中，所述至少一个设备包括：组头或者所述终端设备的同步源；确定终端设备到所述同步源或所述组头的路径损耗为侧行链路的路径损耗。从而，可以减小对同步源或者组头的干扰。
在一种可能的实现方式中，确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗。从而，可以减小对gNB的干扰。
在一种可能的实现方式中，在侧行链路工作在与上行链路共享的载波上的情况下，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗；从而，减小对eNB的干扰。或者，在侧行链路工作在专用载波上的情况下，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗，从而，减小对gNB的干扰。
在一种可能的实现方式中，所述方法还包括：
接收网络设备发送的配置信令；其中，所述配置信令指示终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗；确定配置信令指示的终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗。其中，所述配置信令为下述信令中的至少一种：广播消息；系统消息；无线资源控制RRC信令；媒体接入控制层信令；下行控制信息。确定路径损耗的方式由基站进行配置，修改容易，比较灵活，并减小对基站的干扰。
第二方面，本申请提供一种发送功率的确定装置，包括：
处理模块，用于根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，所述至少一个设备包括5G基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个；
所述处理模块，还用于根据所述侧行链路的路径损耗，确定侧行链路的发送功率。
在一种可能的实现方式中，所述至少一个设备包括至少两个设备；
所述处理模块具体用于获取所述终端设备到所述至少两个设备中每个设备的路径 损耗；确定至少两个路径损耗中最小的路径损耗为侧行链路的路径损耗。
在一种可能的实现方式中，所述终端设备连接到至少两个网络设备，所述至少两个网络设备包括第一网络设备，所述第一网络设备为所述终端设备的主基站；
所述处理模块具体用于确定所述终端设备到所述第一网络设备的路径损耗为侧行链路的路径损耗。
在一种可能的实现方式中，所述终端设备为长期演进-新无线接入技术-双连接EN-DC模式，所述侧行链路的路径损耗为终端设备到演进型基站eNB的路径损耗；或者，
所述终端设备为新无线接入技术-长期演进-双连接NE-DC模式，所述侧行链路的路径损耗为终端设备到gNB的路径损耗；或者，
所述终端设备为新无线接入技术-新无线接入技术-双连接NN-DC模式或多连接模式，所述侧行链路的路径损耗为终端设备到主小区组MCG对应的gNB的路径损耗。
在一种可能的实现方式中，所述至少一个设备包括：组头或者所述终端设备的同步源；
所述处理模块具体用于确定终端设备到所述同步源或所述组头的路径损耗为侧行链路的路径损耗。
在一种可能的实现方式中，所述处理模块具体用于确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗。
在一种可能的实现方式中，所述处理模块具体用于在侧行链路工作在与上行链路共享的载波上的情况下，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗；或者，在侧行链路工作在专用载波上的情况下，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗。
在一种可能的实现方式中，还包括：接收模块，用于接收网络设备发送的配置信令；其中，所述配置信令指示终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗；所述处理模块具体用于确定配置信令指示的终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗。
其中，所述配置信令为下述信令中的至少一种：广播消息；系统消息；无线资源控制RRC信令；媒体接入控制MAC层信令；下行控制信息。
在一种可能的实现方式中，所述处理模块具体用于确定所述终端设备的侧行链路的数据信道的发送功率；或者，确定所述终端设备的侧行链路的控制信道的发送功率；或者，确定所述终端设备的侧行链路的广播信道的发送功率；或者，确定所述终端设备的侧行链路的参考信号的发送功率；或者，确定所述终端设备的侧行链路的同步信号的发送功率。
第三方面，本申请提供一种发送功率的确定装置，包括存储器和处理器，所述处理器执行所述存储器中的程序指令，用于实现第一方面所述的控制信息传输方法。
第四方面，本申请提供一种存储介质，所述存储介质用于存储计算机程序，所述计算机程序用于实现第一方面所述的发送功率的确定方法。
附图说明
图1为本申请提供的EN-DC场景示意图；
图2为本申请提供的NE-DC场景示意图；
图3为本申请提供的NN-DC场景示意图；
图4为本申请提供的一种双连接的场景示意图；
图5为本申请提供的一种发送功率的确定方法的流程示意图；
图6为本申请提供的另一种发送功率的确定方法的流程示意图；
图7为本申请提供的再一种发送功率的确定方法的流程示意图；
图8为本申请提供的又一种发送功率的确定方法的流程示意图；
图9为本申请提供的又一种发送功率的确定方法的流程示意图；
图10为本申请提供的又一种发送功率的确定方法的流程示意图；
图11为本发明提供的一种发送功率的确定装置的结构示意图；
图12为本申请提供的一种发送功率的确定装置的硬件结构示意图。
具体实施方式
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请所示的技术方案可以应用于5G通信系统，例如，5G通信系统中的车辆网(vehicle to everything，V2X)系统、D2D系统，机器通信(Machine Type Communication，MTC)系统等。也可以应用于LTE通信系统，例如，LTE通信系统中的V2X系统、D2D系统、MTC系统等，还可以应用于通用移动通信系统(Universal Mobile Telecommunications System，UMTS)陆地无线接入网(UMTS Terrestrial Radio Access Network，UTRAN)系统，或者全球移动通信系统(Global System for Mobile Communication，GSM)/增强型数据速率GSM演进(Enhanced Data Rate for GSM Evolution，EDGE)系统的无线接入网(GSM EDGE Radio Access Network，GERAN)架构。本申请所示的技术方案还可以应用于其它通信系统，例如：例如公共陆地移动网络(Public Land Mobile Network，PLMN)系统、6G系统以及之后的通信系统等，只要通信系统中涉及确定侧行链路的路径损耗均可应用本申请的技术方案，本申请对此不作限定。
本申请涉及终端设备可以为包含无线收发功能、且可以为用户提供通讯服务的设备。具体地，终端设备可以为V2X系统中的设备、D2D系统中的设备、MTC系统中的设备等。例如，终端设备可以指工业机器人、工业自动化设备、用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线终端设备、用户代理或用户装置。例如，终端设备可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络或5G之后的网络中的终端设备 或未来演进的PLMN网络中的终端设备，本申请对此不作限定。
本申请还涉及网络设备，网络设备可以为用于与终端设备进行通信的设备。例如，网络设备可以为5G系统中gNB，还可以是LTE系统中的eNB，也可以是WCDMA系统中的基站(NodeB，NB)，GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，网络设备还可以为中继站、接入点、车载设备、可穿戴设备以及5G之后的网络中的网络侧设备或未来演进的PLMN网络中的网络设备、路边站点单元(Road Site Unit，RSU)等，对此，本申请不作限制。
本申请提供的技术方案均可以应用于双连接或多连接的场景，其中，部分技术方案还可以应用于单连接的场景中。
单连接的场景中终端设备连接的基站数量为1个，可以是连接到eNB，或者是连接到gNB，或者未来新的无线通信系统中的基站。
双连接场景中终端设备连接的基站数量为2个，多连接场景中终端设备连接的基站数量超过2个。
双连接的场景包括但不限于如图1-图3所示的场景，其中，图1为本申请提供的EN-DC场景示意图，图2为本申请提供的NE-DC场景示意图，图3为本申请提供的NN-DC场景示意图。
在图1所示的LTE-NR双连接(E-UTRA NR Dual Connectivity，EN-DC)场景中，终端设备连接到两个基站分别为LTE基站eNB和5G NR基站gNB，eNB为终端设备的主接入小区，eNB的载波组为主小区组(Master Cell Group，MCG)，gNB的载波组为辅小区组(Secondary Cell Group，SCG)。
在图2所示的NR-LTE双连接(NR E-UTRA Dual Connectivity，NE-DC)场景中终端设备连接到两个基站分别为5G NR基站gNB和LTE基站eNB，gNB为终端设备的主接入小区，gNB的载波组为MCG，eNB的载波组为SCG。
EN-DC和NE-DC都属于多无线接入技术的双连接(Multiple Radio Access Technology Dual Connectivity，MR-DC)中的特例。
在图3所示的NR-NR双连接(NR NR Dual Connectivity，NN-DC)场景中终端设备连接的两个基站都是5G NR基站gNB，分别为gNB1和gNB2，其中，gNB1为终端设备的主接入小区，主接入小区的gNB1的载波组为MCG，gNB2的载波组为SCG。
本申请根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，根据侧行链路的路径损耗，确定侧行链路的发送功率，从而，使得确定的发送功率更加合理，以减小对基站或者其他设备的干扰。其中，所述至少一个设备包括5G基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个。
下面以几个实施例为例对本申请的技术方案进行描述，对于相同或相似的概念或过程可能在某些实施例不再赘述。
如果终端设备同时连接到两个基站，从终端设备的角度，连接到两个基站的载波可能不同，如图4所示，图4为本申请提供的一种双连接的场景示意图，终端设备A在载波1上与基站1连接，在载波2上与基站2连接。但基站1也可能支持载波2，只是没有将载波2配置给终端设备A使用。基站2也可能支持载波1，只是没有将载波1配置给终端设备A使用。所以在双连接场景下，如果终端设备A离基站1较近， 离基站2较远，如果终端设备A在载波2上使用终端设备到基站2的路径损耗计算侧行链路的发送功率，该发送功率就可能干扰到基站1。
图5为本申请提供的一种发送功率的确定方法的流程示意图，如图5所示，本实施例由终端设备执行，本实施例的方法如下：
S501：获取终端设备到至少两个设备中的每个设备的路径损耗。
其中，终端设备为侧行链路的发送方终端设备。
其中，设备包括但不限于各类基站、组头、接收端设备或者终端设备的同步源等。
基站例如：NR的基站gNB，LTE的基站eNB。
终端设备的同步源例如：卫星、基站或者提供同步信号的另一个终端设备。
组头，即终端设备通信组的组头，为一组通信终端中管理组员加入或离开的角色，有时也兼有资源分配的功能。所述终端设备组为该终端设备所在的组。
例如：车队最前面的第一辆车(头车)，或者是车队最后面的一辆车(尾车)，或者是位于车队的任何位置的一辆车，优选车队的中间位置。
接收端设备为侧行链路的接收方终端设备。
在各应用场景中可能包含多个设备，其中，获取终端设备到至少两个设备中的每个设备的路径损耗，是指获取终端设备到多个设备中全部设备或者部分设备的路径损耗。
以图1所示场景为例：
在图1中设备分别为gNB和eNB，可以获取终端设备分别到gNB和eNB的路径损耗。
若在图1中，设备还包括：同步源，可以获取终端设备分别到gNB、eNB以及同步源的路径损耗；也可以获取终端设备分别到gNB和同步源的路径损耗；也可以获取终端设备分别到eNB和同步源的路径损耗。
若在图1中，设备还包括：组头，可以获取终端设备分别到gNB、eNB以及组头的路径损耗；也可以获取终端设备分别到gNB和组头的路径损耗；也可以获取终端设备分别到eNB和组头的路径损耗。
若在图1中，还同时包括：接收端设备，可以获取终端设备分别到gNB和接收端设备的路径损耗；也可以获取终端设备分别到eNB和接收端设备的路径损耗；也可以获取终端设备分别到eNB、gNB以及接收端设备的路径损耗。
若在图1中，还同时包括：同步源和组头，可以获取终端设备分别到eNB、gNB、同步源以及组头的路径损耗；也可以获取终端设备分别到eNB、gNB、同步源以及组头中的至少两个设备的路径损耗。
S502：确定至少两个路径损耗中最小的路径损耗为侧行链路的路径损耗。
例如：结合图1-图3所示的场景示意图，在图1中设备分别为gNB和eNB，假设终端设备到eNB的路径损耗小于终端设备到gNB的路径损耗，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗。
在图2中，设备分别为gNB和eNB，假设终端设备到gNB的路径损耗小于终端设备到eNB的路径损耗，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗。
在图3中，设备为gNB1和gNB2，假设终端设备到gNB1的路径损耗小于终端设备 到gNB2的路径损耗，则确定终端设备到gNB1的路径损耗为侧行链路的路径损耗。
在图1-图3所示场景中，如果还包括同步源和/或组头，假设终端设备到同步源的路径损耗小于终端设备到任何一个其他设备的路径损耗，则确定终端设备到同步源设备的路径损耗为侧行链路的路径损耗。假设终端设备到组头的路径损耗小于终端设备到任何一个其他设备的路径损耗，则确定终端设备到组头的路径损耗为侧行链路的路径损耗。
S503：根据侧行链路的路径损耗，确定侧行链路的发送功率。
根据侧行链路的路径损耗，确定终端设备的发送功率的方式包括但不限于如下方式：
根据P＝f 1(PL)确定侧行链路的控制信道的发送功率。
根据P＝f 2(PL)确定侧行链路的数据信道的发送功率。
根据P＝f 3(PL)确定侧行链路的广播信道的发送功率。
根据P＝f 4(PL)确定侧行链路的参考信号的发送功率。
根据P＝f 5(PL)确定侧行链路的同步信号的发送功率。
其中，P为侧行链路的发送功率，PL为侧行链路的路损。
本实施例，通过根据终端设备到至少两个设备的路径损耗，确定侧行链路的路径损耗，从而，使得确定的侧行链路的损耗更加合理，进而根据侧行链路的路径损耗确定的侧行链路发送功率也更加合理，因此，可以减小对其他基站或者其他设备的干扰。
图6为本申请提供的另一种发送功率的确定方法的流程示意图，本实施例中，终端设备连接到至少两个网络设备，如图1-如图3所示，其中，至少两个网络设备包括第一网络设备，第一网络设备为终端设备的主基站，如在1所示场景中，eNB为第一网络设备，在图2所示场景中，gNB为第一网络设备，在图3所示场景中，gNB1为第一网络设备。本实施例的方法如图6所示：
S601：根据终端设备到第一网络设备的路径损耗，确定侧行链路的路径损耗。
例如：在如下几种场景中的方式为：
在图1所示场景中，终端设备为EN-DC模式，侧行链路的路径损耗为终端设备到eNB的路径损耗。
在图2所示场景中，终端设备为NE-DC模式，侧行链路的路径损耗为终端设备到gNB的路径损耗。
在图3所示场景中，终端设备为NN-DC模式，侧行链路的路径损耗为终端设备到gNB1(MCG对应的gNB)的路径损耗。
或者，在终端设备为多连接模式，侧行链路的路径损耗为终端设备到MCG对应的gNB的路径损耗。
S602：根据侧行链路的路径损耗，确定侧行链路的发送功率。
该步骤与S503类似，详细描述参见S503，此处不再赘述。
本实施例，通过根据终端设备到主基站的路径损耗，确定侧行链路的路径损耗，使得根据侧行链路的路径损耗确定的侧行链路发送功率更加合理，从而，减小对主基站的干扰。
下述图7-图10任一所述实施例，均可应用于单连接的场景、双连接的场景或多 连接的场景，在各场景中的技术方案类似，本申请不一一赘述。
图7为本申请提供的再一种发送功率的确定方法的流程示意图，如图7所示：
S701：根据终端设备到同步源或者组头的路径损耗，确定侧行链路的路径损耗。
其中，同步源包括但不限于卫星、基站(eNB或gNB)或者是提供同步信号的终端设备。
组头，可以是车队最前面的第一辆车(头车)，或者是车队最后面的一辆车(尾车)，也可以位于车队的任何位置，优选车队的中间位置。
S702：根据侧行链路的路径损耗，确定侧行链路的发送功率。
该步骤与S503类似，详细描述参见S503，此处不再赘述。
本实施例，通过确定终端设备到同步源或者组头的路径损耗为侧行链路的路径损耗，使得根据侧行链路的路径损耗确定的侧行链路发送功率更加合理，从而，减小了对同步源或者组头的干扰。
图8为本申请提供的又一种发送功率的确定方法的流程示意图，本实施例中，终端设备同时具有LTE的侧行链路模块和NR的侧行链路模块，如图8所示：
S801：根据终端设备工作的侧行链路，确定侧行链路的路径损耗。
其中，
一种可能的实现方式为：若终端设备工作在LTE侧行链路，则确定终端设备到eNB的路径损耗为LTE侧行链路的路径损耗。
另一种可能的实现方式为：若终端设备工作在NR侧行链路，则确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗。
S802：根据侧行链路的路径损耗，确定侧行链路的发送功率。
该步骤与S503类似，详细描述参见S503，此处不再赘述。
本实施例，通过确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗，使得根据侧行链路的路径损耗确定的侧行链路发送功率更加合理，从而，减小了对gNB的干扰。
图9为本申请提供的又一种发送功率的确定方法的流程示意图，如图9所示：
S901：确定侧行链路是否工作在专用载波上。
若侧行链路工作在与上行链路共享的载波上，则执行S902，若侧行链路工作在专用载波上，则执行S903。
S902：确定终端设备到gNB的路径损耗为侧行链路的路径损耗。
S903：确定终端设备到eNB的路径损耗为侧行链路的路径损耗。
S904：根据侧行链路的路径损耗，确定侧行链路的发送功率。
该步骤与S503类似，详细描述参见S503，此处不再赘述。
本实施例，若侧行链路工作在与上行链路共享的载波上，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗，使得根据侧行链路的路径损耗确定的侧行链路发送功率更加合理，从而，减小对eNB的干扰。若侧行链路工作在专用载波上，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗，使得根据侧行链路的路径损耗确定的侧行链路发送功率更加合理，从而，减小对gNB的干扰。
图10为本申请提供的又一种发送功率的确定方法的流程示意图，如图10所示：
S1001：接收网络设备发送的配置信令。
其中，
网络设备包括但不限于eNB或者gNB。
配置信令中包含指示终端设备到至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗。
可选地，可以在配置信令中指示将终端设备到组头的路径损耗作为侧行链路的路径损耗；或者配置信令中指示将终端设备到者终端设备的同步源的路径损耗作为侧行链路的路径损耗；或者配置信令中指示将终端设备到eNB的路径损耗作为侧行链路的路径损耗；或者配置信令中指示将终端设备到gNB的路径损耗作为侧行链路的路径损耗；或者在车队场景下，配置信令中指示将终端设备到头车或尾车或车队中的任一辆车的路径损耗作为侧行链路的路径损耗。
S1002：根据配置信令，确定侧行链路的路径损耗。
终端设备根据配置信令，获取配置信令中指示的终端设备到至少一个设备中的其中一个设备的路径损耗，将终端设备到至少一个设备中的其中一个设备的路径损耗作为侧行链路的路径损耗。
S1003:根据侧行链路的路径损耗，确定侧行链路的发送功率。
该步骤与S503类似，详细描述参见S503，此处不再赘述。
所述配置信令可以是广播消息，例如：主信息块(Master Informat ion Block，MIB)、系统消息，例如：系统信息块(System Information Block，SIB)、无线资源控制(Radio Resource Control，RRC)信令、媒体接入控制(Media Access Control，MAC)层信令或下行控制信息(Downlink Control Information，DCI)。
本实施例，通过网络设备向终端设备发送配置信令，指示终端设备确定终端设备到某一个设备的路径损耗为侧行链路的路径损耗，使终端设备根据侧行链路的路径损耗，确定终端设备的发送功率，确定路径损耗的方式由基站进行配置，修改容易，比较灵活，并减小对基站的干扰。
图11为本发明提供的一种发送功率的确定装置的结构示意图，本实施例的发送功率的确定装置11包括：处理模块1101，用于根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，所述至少一个设备包括5G基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个；所述处理模块1101还用于根据所述侧行链路的路径损耗，确定侧行链路的发送功率。
可选地，所述至少一个设备包括至少两个设备；
所述处理模块1101具体用于获取所述终端设备到所述至少两个设备中每个设备的路径损耗；确定至少两个路径损耗中最小的路径损耗为侧行链路的路径损耗。
可选地，所述终端设备连接到至少两个网络设备，所述至少两个网络设备包括第一网络设备，所述第一网络设备为所述终端设备的主基站；
所述处理模块1101具体用于确定所述终端设备到所述第一网络设备的路径损耗为侧行链路的路径损耗。
可选地，所述终端设备为长期演进-新无线接入技术-双连接EN-DC模式，所述侧行链路的路径损耗为终端设备到演进型基站eNB的路径损耗；或者，
所述终端设备为新无线接入技术-长期演进-双连接NE-DC模式，所述侧行链路的路径损耗为终端设备到gNB的路径损耗；或者，
所述终端设备为新无线接入技术-新无线接入技术-双连接NN-DC模式或多连接模式，所述侧行链路的路径损耗为终端设备到主小区组MCG对应的gNB的路径损耗。
可选地，所述至少一个设备包括：组头或者所述终端设备的同步源；
所述处理模块1101具体用于确定终端设备到所述同步源或所述组头的路径损耗为侧行链路的路径损耗。
可选地，所述处理模块1101具体用于确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗。
可选地，所述处理模块1101具体用于在侧行链路工作在与上行链路共享的载波上的情况下，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗；或者，在侧行链路工作在专用载波上的情况下，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗。
可选地，还包括：
接收模块1102用于接收网络设备发送的配置信令；其中，所述配置信令指示终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗；
所述处理模块1101具体用于确定配置信令指示的终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗。
可选地，所述配置信令为下述信令中的至少一种：
广播消息；
系统消息；
无线资源控制RRC信令；
媒体接入控制MAC层信令；
下行控制信息。
可选地，所述处理模块1101具体用于确定所述终端设备的侧行链路的数据信道的发送功率；或者，确定所述终端设备的侧行链路的控制信道的发送功率；或者，确定所述终端设备的侧行链路的广播信道的发送功率；或者，确定所述终端设备的侧行链路的参考信号的发送功率；或者，确定所述终端设备的侧行链路的同步信号的发送功率。
图11所示实施例的装置，对应地可用于执行上述图5-图10所示方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图12为本申请提供的一种发送功率的确定装置的硬件结构示意图。请参见图12，该发送功率的确定装置12包括：存储器121、处理器122和通信接口123，其中，存储器121、处理器122和通信接口123可以通信；示例性的，存储器121、处理器122和通信接口123可以通过通信总线124通信，所述存储器121用于存储计算机程序，所述处理器122执行所述计算机程序实现上述图5-图10所示实施例所示的方法。
可选的，通信接口123还可以包括发送器和/或接收器。
可选的，上述处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成 电路(Application Specific Integrated Circuit，ASIC)等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
本申请提供一种存储介质，所述存储介质用于存储计算机程序，所述计算机程序用于实现上述图5-图10方法实施例所述的发送功率的确定方法。
本申请提供一种芯片，该芯片用于支持发送功率的确定装置实现本申请实施例所示的功能(例如，根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，所述至少一个设备包括5G基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个；根据所述侧行链路的路径损耗，确定侧行链路的发送功率等)，该芯片具体用于芯片系统，该芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。当实现上述方法的为第一设备内的芯片时，芯片包括处理单元，进一步的，芯片还可以包括通信单元，所述处理单元例如可以是处理器，当芯片包括通信单元时，所述通信单元例如可以是输入/输出接口、管脚或电路等。处理单元执行本申请实施例中各个处理模块所执行的全部或部分动作，通信单元可执行相应的接收或发送动作，例如，接收网络设备发送的配置信令等。在另一具体的实施例中，本申请中的接收设备的处理模块可以是芯片的处理单元，控制设备的接收模块或发送模块是芯片的通信单元。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理单元以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理单元执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。

Claims (22)

  1. 一种发送功率的确定方法，其特征在于，包括：
    根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，所述至少一个设备包括新空口NR基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个；
    根据所述侧行链路的路径损耗，确定侧行链路的发送功率。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个设备包括至少两个设备；
    所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
    获取所述终端设备到所述至少两个设备中每个设备的路径损耗；
    确定至少两个路径损耗中最小的路径损耗为侧行链路的路径损耗。
  3. 根据权利要求1所述的方法，其特征在于，所述终端设备连接到至少两个网络设备，所述至少两个网络设备包括第一网络设备，所述第一网络设备为所述终端设备的主基站；
    所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
    确定所述终端设备到所述第一网络设备的路径损耗为侧行链路的路径损耗。
  4. 根据权利要求3所述的方法，其特征在于，
    所述终端设备为长期演进-新无线接入技术-双连接EN-DC模式，所述侧行链路的路径损耗为终端设备到演进型基站eNB的路径损耗；或者，
    所述终端设备为新无线接入技术-长期演进-双连接NE-DC模式，所述侧行链路的路径损耗为终端设备到gNB的路径损耗；或者，
    所述终端设备为新无线接入技术-新无线接入技术-双连接NN-DC模式或多连接模式，所述侧行链路的路径损耗为终端设备到主小区组MCG对应的gNB的路径损耗。
  5. 根据权利要求1所述的方法，其特征在于，所述至少一个设备包括：组头或者所述终端设备的同步源；
    所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
    确定终端设备到所述同步源或所述组头的路径损耗为侧行链路的路径损耗。
  6. 根据权利要求1所述的方法，其特征在于，所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
    确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗。
  7. 根据权利要求1所述的方法，其特征在于，所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
    在侧行链路工作在与上行链路共享的载波上的情况下，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗；或者，
    在侧行链路工作在专用载波上的情况下，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗。
  8. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收网络设备发送的配置信令；其中，所述配置信令指示终端设备到所述至少一 个设备中的其中一个设备的路径损耗为侧行链路的路径损耗；
    所述根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，包括：
    确定配置信令指示的终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗。
  9. 根据权利要求8所述的方法，其特征在于，所述配置信令为下述信令中的至少一种：
    广播消息；
    系统消息；
    无线资源控制RRC信令；
    媒体接入控制MAC层信令；
    下行控制信息。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述确定侧行链路的发送功率，包括：
    确定所述终端设备的侧行链路的数据信道的发送功率；或者，
    确定所述终端设备的侧行链路的控制信道的发送功率；或者，
    确定所述终端设备的侧行链路的广播信道的发送功率；或者，
    确定所述终端设备的侧行链路的参考信号的发送功率；或者，
    确定所述终端设备的侧行链路的同步信号的发送功率。
  11. 一种发送功率的确定装置，其特征在于，包括：
    处理模块，用于根据终端设备到至少一个设备的路径损耗，确定侧行链路的路径损耗，所述至少一个设备包括新空口NR基站gNB、组头、接收端设备以及所述终端设备的同步源中的至少一个；
    所述处理模块，还用于根据所述侧行链路的路径损耗，确定侧行链路的发送功率。
  12. 根据权利要求11所述的装置，其特征在于，所述至少一个设备包括至少两个设备；
    所述处理模块具体用于获取所述终端设备到所述至少两个设备中每个设备的路径损耗；确定至少两个路径损耗中最小的路径损耗为侧行链路的路径损耗。
  13. 根据权利要求11所述的装置，其特征在于，所述终端设备连接到至少两个网络设备，所述至少两个网络设备包括第一网络设备，所述第一网络设备为所述终端设备的主基站；
    所述处理模块具体用于确定所述终端设备到所述第一网络设备的路径损耗为侧行链路的路径损耗。
  14. 根据权利要求13所述的装置，其特征在于，
    所述终端设备为长期演进-新无线接入技术-双连接EN-DC模式，所述侧行链路的路径损耗为终端设备到演进型基站eNB的路径损耗；或者，
    所述终端设备为新无线接入技术-长期演进-双连接NE-DC模式，所述侧行链路的路径损耗为终端设备到gNB的路径损耗；或者，
    所述终端设备为新无线接入技术-新无线接入技术-双连接NN-DC模式或多连接模式，所述侧行链路的路径损耗为终端设备到主小区组MCG对应的gNB的路径损耗。
  15. 根据权利要求11所述的装置，其特征在于，所述至少一个设备包括：组头或者所述终端设备的同步源；
    所述处理模块具体用于确定终端设备到所述同步源或所述组头的路径损耗为侧行链路的路径损耗。
  16. 根据权利要求11所述的装置，其特征在于，所述处理模块具体用于确定终端设备到gNB的路径损耗为NR侧行链路的路径损耗。
  17. 根据权利要求11所述的装置，其特征在于，所述处理模块具体用于在侧行链路工作在与上行链路共享的载波上的情况下，则确定终端设备到eNB的路径损耗为侧行链路的路径损耗；或者，在侧行链路工作在专用载波上的情况下，则确定终端设备到gNB的路径损耗为侧行链路的路径损耗。
  18. 根据权利要求11所述的装置，其特征在于，还包括：
    接收模块，用于接收网络设备发送的配置信令；其中，所述配置信令指示终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗；
    所述处理模块具体用于确定配置信令指示的终端设备到所述至少一个设备中的其中一个设备的路径损耗为侧行链路的路径损耗。
  19. 根据权利要求18所述的装置，其特征在于，所述配置信令为下述信令中的至少一种：
    广播消息；
    系统消息；
    无线资源控制RRC信令；
    媒体接入控制MAC层信令；
    下行控制信息。
  20. 根据权利要求11-19任一项所述的装置，其特征在于，所述处理模块具体用于确定所述终端设备的侧行链路的数据信道的发送功率；或者，确定所述终端设备的侧行链路的控制信道的发送功率；或者，确定所述终端设备的侧行链路的广播信道的发送功率；或者，确定所述终端设备的侧行链路的参考信号的发送功率；或者，确定所述终端设备的侧行链路的同步信号的发送功率。
  21. 一种发送功率的确定装置，其特征在于，包括存储器和处理器，所述处理器执行所述存储器中的程序指令，用于实现权利要求1-10任一项所述的发送功率的确定方法。
  22. 一种存储介质，其特征在于，所述存储介质用于存储计算机程序，所述计算机程序用于实现权利要求1-10任一项所述的发送功率的确定方法。
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