CN111148205B - Method and device for determining transmission power - Google Patents

Method and device for determining transmission power Download PDF

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Publication number
CN111148205B
CN111148205B CN201811301946.6A CN201811301946A CN111148205B CN 111148205 B CN111148205 B CN 111148205B CN 201811301946 A CN201811301946 A CN 201811301946A CN 111148205 B CN111148205 B CN 111148205B
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path loss
determining
sidelink
terminal device
terminal equipment
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CN111148205A (en
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张兴炜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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

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

Abstract

The application provides a method and a device for determining transmission power, wherein the path loss of a sidelink is determined according to the path loss from a terminal device to at least one device, and the transmission power of the sidelink is determined according to the path loss of the sidelink, so that the determined transmission power is more reasonable, and the interference to a base station or other devices is reduced.

Description

Method and device for determining transmission power
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for determining transmit power.
Background
The Device to Device (D2D) communication link is also called a Sidelink (SL), and by multiplexing spectrum resources of the existing mobile communication network, the spectrum utilization rate is improved and the radio frequency function of the terminal Device is utilized to the maximum extent.
In the prior art, 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 sidelink, and the transmit power of the sidelink is determined.
In 5th Generation (5G) mobile communication Technology, a 5G terminal device supports dual connectivity, that is, one terminal device is connected to two base stations, and a base station may be an eNB or a 5G New Radio Access Technology (NR) base station (G Node B, gNB). The carrier Group of one base station is a Master Cell Group (MCG), and the carrier Group of another base station is a Secondary Cell Group (SCG).
Disclosure of Invention
The application provides a method and a device for determining transmission power, which improve the reasonability of the determined transmission power.
In a first aspect, the present application provides a method for determining transmit power, where a path loss of a sidelink is determined according to a path loss from a terminal device to at least one device, and a transmit power of the sidelink is determined according to the path loss of the sidelink, so that the determined transmit power is more reasonable to reduce interference to a base station or other devices. The at least one device includes at least one of a New Radio (NR) base station gbb of 5G, a group head, a receiving end device, and a synchronization source of the terminal device.
Wherein, the determining the transmission power of the side link comprises:
determining the transmission power of a data channel of a side link of the terminal equipment; alternatively, the first and second electrodes may be,
determining the transmission power of a control channel of a side link of the terminal equipment; alternatively, the first and second electrodes may be,
determining the transmission power of a broadcast channel of a sidelink of the terminal equipment; alternatively, the first and second electrodes may be,
determining the transmission power of a reference signal of a side link of the terminal equipment; alternatively, the first and second electrodes may be,
and determining the transmission power of the synchronization signal of the side link of the terminal equipment.
In one possible implementation, the at least one device includes at least two devices; the path loss from the terminal device to each of the at least two devices may be obtained; and determining the path loss with the minimum path loss of the at least two path losses as the path loss of the side link. Therefore, the determined loss of the sidelink is more reasonable, and the determined transmission power of the sidelink according to the path loss of the sidelink is more reasonable, so that the interference to other base stations or other equipment can be reduced.
In a possible implementation manner, the terminal device is connected to at least two network devices, where the at least two network devices include a first network device, and the first network device is a master base station of the terminal device;
the determining the path loss of the sidelink according to the path loss from the terminal device to at least one device includes:
and determining the path loss from the terminal equipment to the first network equipment as the path loss of a side link.
Several of these possibilities are as follows:
the terminal equipment is in 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 equipment to an evolved node B (eNB); alternatively, the first and second electrodes may be,
the terminal equipment is in a new radio 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 equipment to the gNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new wireless access technology-double-connection NN-DC mode or multi-connection mode, and the path loss of the side link is the path loss from the terminal equipment to the gNB corresponding to the master cell group MCG.
Therefore, the path loss from the terminal equipment to the main base station is determined, the path loss of the side link is determined, and the transmission power of the side link is determined according to the path loss of the side link, so that the interference to the main base station can be reduced.
In one possible implementation, the at least one device includes: a group header or a synchronization source of the terminal device; and determining the path loss of the terminal equipment to the synchronization source or the group head as the path loss of the side link. Thus, interference with the synchronization source or the cluster head can be reduced.
In one possible implementation, the pathloss from the terminal device to the gNB is determined to be the pathloss of the NR-side downlink. Thus, interference to the gNB may be reduced.
In one possible implementation, in a case that the sidelink operates on a carrier shared with the uplink, determining that a path loss from the terminal device to the eNB is a path loss of the sidelink; thus, interference to the eNB is reduced. Or, in the case that the side uplink operates on the dedicated carrier, determining that the path loss from the terminal device to the gNB is the path loss of the side uplink, thereby reducing the interference to the gNB.
In one possible implementation, the method further includes:
receiving a configuration signaling sent by network equipment; 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 sidelink; and determining the path loss of the terminal equipment indicated by the configuration signaling to one of the at least one equipment as the path loss of the side link. Wherein the configuration signaling is at least one of the following signaling: broadcasting the message; a system message; radio resource control, RRC, signaling; media access control layer signaling; and downlink control information. The method for determining the path loss is configured by the base station, so that the modification is easy, the modification is more flexible, and the interference to the base station is reduced.
In a second aspect, the present application provides an apparatus for determining transmit power, including:
a processing module, configured to determine a path loss of a sidelink according to a path loss from a terminal device to at least one device, where the at least one device includes at least one of a 5G base station gNB, a group header, a receiving end device, and a synchronization source of the terminal device;
the processing module is further configured to determine the transmit power of the sidelink according to the path loss of the sidelink.
In one possible implementation, the at least one device includes at least two devices;
the processing module is specifically configured to obtain a path loss from the terminal device to each of the at least two devices; and determining the path loss with the minimum path loss of the at least two path losses as the path loss of the side link.
In a possible implementation manner, the terminal device is connected to at least two network devices, where the at least two network devices include a first network device, and the first network device is a master base station of the terminal device;
the processing module is specifically configured to determine that a path loss from the terminal device to the first network device is a path loss of a sidelink.
In a possible implementation manner, the terminal device is in a long term evolution-new radio access technology-dual connectivity EN-DC mode, and the path loss of the sidelink is the path loss from the terminal device to the eNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new radio 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 equipment to the gNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new wireless access technology-double-connection NN-DC mode or multi-connection mode, and the path loss of the side link is the path loss from the terminal equipment to the gNB corresponding to the master cell group MCG.
In one possible implementation, the at least one device includes: a group header or a synchronization source of the terminal device;
the processing module is specifically configured to determine that a path loss from the terminal device to the synchronization source or the group head is a path loss of the sidelink.
In a possible implementation manner, the processing module is specifically configured to determine that a path loss from the terminal device to the gNB is a path loss of the NR-side downlink.
In a possible implementation manner, the processing module is specifically configured to determine that a path loss from the terminal device to the eNB is a path loss of the sidelink when the sidelink operates on a carrier shared with the uplink; or, in the case that the sidelink operates on the dedicated carrier, determining that the path loss from the terminal device to the gNB is the path loss of the sidelink.
In one possible implementation manner, the method further includes: the receiving module is used for receiving a configuration signaling sent by the network equipment; 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 sidelink; the processing module is specifically configured to determine that a path loss from the terminal device indicated by the configuration signaling to one of the at least one device is a path loss of the sidelink.
Wherein the configuration signaling is at least one of the following signaling: broadcasting the message; a system message; radio resource control, RRC, signaling; media Access Control (MAC) layer signaling; and downlink control information.
In a possible implementation manner, the processing module is specifically configured to determine a transmission power of a data channel of a sidelink of the terminal device; or, determining the transmission power of the control channel of the side link of the terminal equipment; or, determining the transmission power of the broadcast channel of the sidelink of the terminal equipment; or, determining the transmission power of the reference signal of the side link of the terminal equipment; or determining the transmission power of the synchronization signal of the side link of the terminal equipment.
In a third aspect, the present application provides a device for determining transmit power, including a memory and a processor, where the processor executes program instructions in the memory, so as to implement the method for transmitting control information according to the first aspect.
In a fourth aspect, the present application provides a storage medium for storing a computer program for implementing the method for determining transmission power of the first aspect.
Drawings
FIG. 1 is a schematic diagram of an EN-DC scenario provided herein;
FIG. 2 is a schematic diagram of a NE-DC scenario provided herein;
FIG. 3 is a schematic diagram of an NN-DC scenario provided herein;
fig. 4 is a schematic view of a dual connection scenario provided in the present application;
fig. 5 is a flowchart illustrating a method for determining transmit power according to the present application;
fig. 6 is a schematic flow chart of another method for determining transmission power provided in the present application;
fig. 7 is a flowchart illustrating a method for determining transmit power according to another embodiment of the present disclosure;
fig. 8 is a flowchart illustrating another method for determining transmit power provided herein;
fig. 9 is a flowchart illustrating another method for determining transmit power provided herein;
fig. 10 is a flowchart illustrating another method for determining transmit power provided herein;
fig. 11 is a schematic structural diagram of a device for determining transmit power according to the present invention;
fig. 12 is a schematic hardware structure diagram of a transmission power determination apparatus according to the present application.
Detailed Description
The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
The technical solution shown in the present application may be applied to a 5G Communication system, for example, a vehicle to electrical (V2X) system, a D2D system, a Machine Type Communication (MTC) system, and the like in the 5G Communication system. The present invention can also be applied to an LTE Communication System, for example, a V2X System, a D2D System, an MTC System, etc. in the LTE Communication System, and can also be applied to a Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) System, or a Radio Access Network (GSM EDGE Radio Access Network, GERAN) architecture of a Global System for Mobile Communication (GSM)/Enhanced Data Rate GSM Evolution (Enhanced Data Rate for GSM Evolution, EDGE) System. The technical solution shown in the present application can also be applied to other communication systems, for example: for example, a Public Land Mobile Network (PLMN) system, a 6G system, a subsequent communication system, and the like, as long as the communication system is involved in determining the path loss of the sidelink, the technical solution of the present application can be applied, and the present application is not limited thereto.
The application relates to a terminal device which can be a device containing a wireless transceiving function and can provide communication service for a user. Specifically, 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. For example, a terminal device may refer to an industrial robot, an industrial automation device, a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless terminal device, a User agent, or a User Equipment. For example, the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a network after 5G or a terminal device in a PLMN network evolved in the future, which is not limited by the present application.
The application also relates to a network device, which may be a device for communicating with a terminal device. For example, the network device may be a gNB in a 5G system, an eNB in an LTE system, a Base Station (NodeB, NB) in a WCDMA system, a Base Station (BTS) in a GSM system or a CDMA system, a relay Station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a network after 5G, a network device in a PLMN network for future evolution, a Roadside Site Unit (RSU), or the like, which is not limited in this application.
The technical scheme provided by the application can be applied to double-connection or multi-connection scenes, wherein part of the technical scheme can also be applied to single-connection scenes.
In the single connection scenario, the number of base stations connected by the terminal device is 1, and the base station may be connected to the eNB, or connected to the gNB, or a base station in a new wireless communication system in the future.
The number of base stations connected by the terminal equipment in the double connection scene is 2, and the number of base stations connected by the terminal equipment in the multi-connection scene exceeds 2.
The scenarios of dual connectivity include, but are not limited to, scenarios shown in fig. 1 to 3, where fig. 1 is an EN-DC scenario schematic diagram provided by the present application, fig. 2 is an NE-DC scenario schematic diagram provided by the present application, and fig. 3 is an NN-DC scenario schematic diagram provided by the present application.
In an LTE-NR Dual Connectivity (EN-DC) scenario shown in fig. 1, a terminal device is connected to two base stations, which are an LTE base station eNB and a 5G NR base station gNB, respectively, where the eNB is a main access Cell of the terminal device, a carrier Group of the eNB is a Master Cell Group (MCG), and a carrier Group of the gNB is a Secondary Cell Group (SCG).
In the NR-LTE Dual Connectivity (NE-DC) scenario shown in fig. 2, a terminal device is connected to two base stations, namely a 5G NR base station gNB and an LTE base station eNB, where the gNB is a main access cell of the terminal device, a carrier group of the gNB is an MCG, and a carrier group of the eNB is an SCG.
Both EN-DC and NE-DC belong to a special case in multi Radio Access Technology Dual Connectivity (MR-DC).
In the NR-NR Dual Connectivity (NN-DC) scenario shown in fig. 3, two base stations connected to the terminal device are 5G NR base stations gNB, which are gNB1 and gNB2, respectively, where gNB1 is a main access cell of the terminal device, a carrier group of the gNB1 of the main access cell is MCG, and a carrier group of the gNB2 is SCG.
The method and the device determine the path loss of the sidelink according to the path loss from the terminal device to at least one device, and determine the transmitting power of the sidelink according to the path loss of the sidelink, so that the determined transmitting power is more reasonable, and the interference to a base station or other devices is reduced. Wherein 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 technical solutions of the present application are described below with several embodiments as examples, and the same or similar concepts or processes may not be described in detail in some embodiments.
If the terminal device is connected to two base stations at the same time, from the perspective of the terminal device, the carriers connected to the two base stations may be different, as shown in fig. 4, fig. 4 is a schematic view of a dual connection scenario provided in the present application, where the terminal device a is connected to the base station 1 on the carrier 1 and connected to the base station 2 on the carrier 2. However, base station 1 may also support carrier 2, but carrier 2 is not configured for use by terminal a. Base station 2 may also support carrier 1, except that carrier 1 is not configured for use by terminal device a. Therefore, in a dual connectivity scenario, if terminal device a is closer to base station 1 and farther from base station 2, if terminal device a calculates the transmit power of the sidelink on carrier 2 using the path loss from terminal device to base station 2, the transmit power may interfere with base station 1.
Fig. 5 is a schematic flowchart of a method for determining transmission power provided in the present application, as shown in fig. 5, the method of the present embodiment is executed by a terminal device, and the method of the present embodiment is as follows:
s501: the path loss from the terminal device to each of the at least two devices is obtained.
The terminal equipment is the sender terminal equipment of the sidelink.
The device includes, but is not limited to, various base stations, a group header, a synchronization source of a receiving end device or a terminal device, and the like.
The base station includes, for example: NR base station gNB, LTE base station eNB.
Synchronization sources of terminal devices are for example: a satellite, a base station, or another terminal device that provides a synchronization signal.
The group head, i.e. the group head of the communication group of the terminal device, is the role of managing the joining or leaving of the group member in a group of communication terminals, and sometimes has the function of resource allocation. The terminal equipment group is the group where the terminal equipment is located.
For example: the first vehicle in the front of the platoon (the head vehicle), or the last vehicle in the platoon (the tail vehicle), or a vehicle located anywhere in the platoon, preferably in the middle of the platoon.
The receiving terminal equipment is the receiving terminal equipment of the side link.
Each application scenario may include a plurality of devices, where obtaining the path loss from the terminal device to each of the at least two devices means obtaining the path loss from the terminal device to all or part of the plurality of devices.
Taking the scenario shown in fig. 1 as an example:
in fig. 1, the devices are a gNB and an eNB, respectively, and the path loss of the terminal device to the gNB and the eNB, respectively, can be obtained.
If in fig. 1, the apparatus further comprises: the synchronization source can acquire path loss from the terminal equipment to the gNB, the eNB and the synchronization source respectively; the path loss from the terminal device to the gNB and the synchronization source respectively can also be obtained; the path loss from the terminal device to the eNB and the synchronization source, respectively, may also be obtained.
If in fig. 1, the apparatus further comprises: a group head, which can obtain the path loss from the terminal device to the gNB, the eNB and the group head respectively; the path loss from the terminal device to the gNB and the head of the group respectively can also be obtained; the path loss from the terminal device to the eNB and the group head, respectively, may also be obtained.
If in fig. 1, the method also includes: the receiving terminal equipment can acquire the path loss from the terminal equipment to the gNB and the receiving terminal equipment respectively; the path loss from the terminal equipment to the eNB and the path loss from the terminal equipment to the receiving terminal equipment can be obtained; the path loss from the terminal device to the eNB, the gNB, and the receiving end device, respectively, may also be obtained.
If in fig. 1, the method also includes: the synchronization source and the group head can acquire path loss from the terminal equipment to the eNB, the gNB, the synchronization source and the group head respectively; the path loss from the terminal device to at least two devices in the eNB, the gNB, the synchronization source, and the group head may also be obtained.
S502: and determining the path loss with the minimum path loss of the at least two path losses as the path loss of the side link.
For example: with reference to the scene diagrams shown in fig. 1 to fig. 3, in fig. 1, the devices are a gNB and an eNB, respectively, and 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, it is determined that the path loss from the terminal device to the eNB is the path loss of the sidelink.
In fig. 2, the devices are a gNB and an eNB, respectively, and 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 sidelink.
In fig. 3, the devices are gNB1 and gNB2, and assuming that the path loss from the terminal device to gNB1 is less than the path loss from the terminal device to gNB2, the path loss from the terminal device to gNB1 is determined to be the path loss of the sidelink.
In the scenarios shown in fig. 1-3, if a synchronization source and/or a group header are also included, assuming that the path loss from the terminal device to the synchronization source is smaller than the path loss from the terminal device to any other device, the path loss from the terminal device to the synchronization source device is determined to be the path loss of the sidelink. And determining the path loss from the terminal device to the group head as the path loss of the side link, assuming that the path loss from the terminal device to the group head is smaller than the path loss from the terminal device to any other device.
S503: and determining the transmission power of the sidelink according to the path loss of the sidelink.
The method for determining the transmission power of the terminal device according to the path loss of the sidelink includes, but is not limited to, the following methods:
according to P ═ f1(PL) determines the transmission power of the control channel of the sidelink.
According to P ═ f2(PL) determines the transmission power of the data channel of the sidelink.
According to P ═ f3(PL) determines the transmission power of the broadcast channel of the sidelink.
According to P ═ f4(PL) determining a transmission power of a reference signal of the sidelink.
According to P ═ f5(PL) determines the transmission power of the synchronization signal of the sidelink.
Where P is the transmission power of the sidelink and PL is the path loss of the sidelink.
In this embodiment, the path loss of the sidelink is determined according to the path losses from the terminal device to the at least two devices, so that the determined path loss of the sidelink is more reasonable, and the determined transmission power of the sidelink according to the path loss of the sidelink is more reasonable, thereby reducing interference to other base stations or other devices.
Fig. 6 is a flowchart illustrating another method for determining transmission power according to the present application, in this embodiment, a terminal device is connected to at least two network devices, as shown in fig. 1-fig. 3, where the at least two network devices include a first network device, the first network device is a primary base station of the terminal device, and in a scenario shown in fig. 1, an eNB is the first network device, in a scenario shown in fig. 2, a gNB is the first network device, and in a scenario shown in fig. 3, a gNB1 is the first network device. The method of this embodiment is shown in fig. 6:
s601: and determining the path loss of the side link according to the path loss from the terminal equipment to the first network equipment.
For example: the mode in the following several scenes is as follows:
in the scenario shown in fig. 1, the terminal device is in EN-DC mode, and the path loss of the sidelink is the path loss from the terminal device to the eNB.
In the scenario shown in fig. 2, the terminal device is in NE-DC mode, and the path loss of the sidelink is the path loss of the terminal device to the gNB.
In the scenario shown in fig. 3, the terminal device is in NN-DC mode, and the path loss of the sidelink is the path loss from the terminal device to the gNB1 (gNB corresponding to MCG).
Or, when the terminal device is in the multi-connection mode, the path loss of the sidelink is the path loss from the terminal device to the gNB corresponding to the MCG.
S602: and determining the transmission power of the sidelink according to the path loss of the sidelink.
This step is similar to S503, and the detailed description is referred to S503, which is not repeated herein.
In this embodiment, the path loss of the sidelink is determined according to the path loss from the terminal device to the main base station, so that the sidelink transmission power determined according to the path loss of the sidelink is more reasonable, thereby reducing the interference to the main base station.
Any of the embodiments described in fig. 7 to fig. 10 below can be applied to a single-connection scenario, a dual-connection scenario, or a multi-connection scenario, and the technical solutions in the scenarios are similar, which is not repeated in this application.
Fig. 7 is a schematic flowchart of another method for determining transmit power according to the present application, as shown in fig. 7:
s701: and determining the path loss of the side link according to the path loss from the terminal equipment to the synchronous source or the group head.
The synchronization source includes, but is not limited to, a satellite, a base station (eNB or gNB), or a terminal device providing a synchronization signal.
The cluster head may be the first vehicle in the front of the fleet (head vehicle) or the last vehicle in the fleet (tail vehicle), or may be located anywhere in the fleet, preferably in the middle of the fleet.
S702: and determining the transmission power of the sidelink according to the path loss of the sidelink.
This step is similar to S503, and the detailed description is referred to S503, which is not repeated herein.
In this embodiment, the path loss from the terminal device to the synchronization source or the group head is determined to be the path loss of the sidelink, so that the sidelink transmission power determined according to the path loss of the sidelink is more reasonable, and thus, the interference to the synchronization source or the group head is reduced.
Fig. 8 is a flowchart illustrating a method for determining transmit power according to another embodiment of the present disclosure, in this embodiment, a terminal device has a sidelink module of LTE and a sidelink module of NR at the same time, as shown in fig. 8:
s801: and determining the path loss of the side link according to the side link in which the terminal equipment works.
Wherein the content of the first and second substances,
one possible implementation is: and if the terminal equipment works in the LTE side uplink, determining that the path loss from the terminal equipment to the eNB is the path loss of the LTE side uplink.
Another possible implementation is: and if the terminal equipment works in the NR side uplink, determining that the path loss from the terminal equipment to the gNB is the path loss of the NR side uplink.
S802: and determining the transmission power of the sidelink according to the path loss of the sidelink.
This step is similar to S503, and the detailed description is referred to S503, which is not repeated herein.
In this embodiment, the path loss from the terminal device to the gNB is determined to be the path loss of the NR side uplink, so that the side uplink transmission power determined according to the path loss of the side link is more reasonable, and thus, the interference to the gNB is reduced.
Fig. 9 is a schematic flowchart of another method for determining transmit power according to the present application, as shown in fig. 9:
s901: it is determined whether the sidelink is operating on a dedicated carrier.
If the sidelink operates on the carrier shared with the uplink, S902 is performed, and if the sidelink operates on the dedicated carrier, S903 is performed.
S902: and determining the path loss of the terminal equipment to the gNB as the path loss of the side link.
S903: and determining the path loss from the terminal equipment to the eNB as the path loss of the side link.
S904: and determining the transmission power of the sidelink according to the path loss of the sidelink.
This step is similar to S503, and the detailed description is referred to S503, which is not repeated herein.
In this embodiment, if the sidelink operates on the carrier shared with the uplink, the path loss from the terminal device to the eNB is determined to be the path loss of the sidelink, so that the sidelink transmission power determined according to the path loss of the sidelink is more reasonable, thereby reducing interference to the eNB. If the side link works on the special carrier, determining that the path loss from the terminal equipment to the gNB is the path loss of the side link, so that the side link transmitting power determined according to the path loss of the side link is more reasonable, and the interference to the gNB is reduced.
Fig. 10 is a schematic flowchart of another method for determining transmit power according to the present application, as shown in fig. 10:
s1001: and receiving configuration signaling sent by the network equipment.
Wherein the content of the first and second substances,
network devices include, but are not limited to, enbs or gnbs.
The configuration signaling includes a path loss indicating that the path loss from the terminal device to one of the at least one device is the path loss of the sidelink.
Optionally, the path loss from the terminal device to the group head may be indicated in the configuration signaling as the path loss of the sidelink; or indicating the path loss from the terminal equipment to the synchronous source of the terminal equipment as the path loss of the side link in the configuration signaling; or indicating the path loss from the terminal equipment to the eNB as the path loss of the side link in the configuration signaling; or indicating the path loss from the terminal equipment to the gNB to be used as the path loss of the side link in the configuration signaling; or in a fleet scenario, the path loss of the terminal device to any one of the head vehicle, the tail vehicle or the fleet is indicated in the configuration signaling as the path loss of the sidelink.
S1002: and determining the path loss of the side link according to the configuration signaling.
And the terminal equipment acquires the path loss from the terminal equipment to one of the at least one equipment indicated in the configuration signaling according to the configuration signaling, and takes the path loss from the terminal equipment to one of the at least one equipment as the path loss of the sidelink.
S1003, determining the transmission power of the side link according to the path loss of the side link.
This step is similar to S503, and the detailed description is referred to S503, which is not repeated herein.
The configuration signaling may be a broadcast message, such as: master Information Block (MIB), system messages, such as: system Information Block (SIB), Radio Resource Control (RRC) signaling, Media Access Control (MAC) layer signaling, or Downlink Control Information (DCI).
In this embodiment, a configuration signaling is sent to a terminal device by a network device, and the network device instructs the terminal device to determine that a path loss from the terminal device to a certain device is a path loss of a sidelink, so that the terminal device determines a transmission power of the terminal device according to the path loss of the sidelink, and the manner of determining the path loss is configured by a base station, which is easy to modify and flexible and reduces interference to the base station.
Fig. 11 is a schematic structural diagram of a transmission power determining apparatus provided in the present invention, where the transmission power determining apparatus 11 of this embodiment includes: a processing module 1101, configured to determine a path loss of a sidelink according to a path loss from a terminal device to at least one device, where the at least one device includes at least one of a 5G base station gNB, a group header, a receiving end device, and a synchronization source of the terminal device; the processing module 1101 is further configured to determine the transmit power of the sidelink according to the path loss of the sidelink.
Optionally, the at least one device comprises at least two devices;
the processing module 1101 is specifically configured to obtain a path loss from the terminal device to each device of the at least two devices; and determining the path loss with the minimum path loss of the at least two path losses as the path loss of the side link.
Optionally, the terminal device is connected to at least two network devices, where the at least two network devices include a first network device, and the first network device is a master base station of the terminal device;
the processing module 1101 is specifically configured to determine that a path loss from the terminal device to the first network device is a path loss of a sidelink.
Optionally, the terminal device is in a long term evolution-new radio access technology-dual connectivity EN-DC mode, and the path loss of the sidelink is a path loss from the terminal device to an evolved node b eNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new radio 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 equipment to the gNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new wireless access technology-double-connection NN-DC mode or multi-connection mode, and the path loss of the side link is the path loss from the terminal equipment to the gNB corresponding to the master cell group MCG.
Optionally, the at least one device comprises: a group header or a synchronization source of the terminal device;
the processing module 1101 is specifically configured to determine that a path loss from the terminal device to the synchronization source or the group head is a path loss of a sidelink.
Optionally, the processing module 1101 is specifically configured to determine that a path loss from the terminal device to the gNB is a path loss of the NR-side downlink.
Optionally, the processing module 1101 is specifically configured to determine that a path loss from the terminal device to the eNB is a path loss of the sidelink when the sidelink operates on a carrier shared with the uplink; or, in the case that the sidelink operates on the dedicated carrier, determining that the path loss from the terminal device to the gNB is the path loss of the sidelink.
Optionally, the method further comprises:
the receiving module 1102 is configured to receive a 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 sidelink;
the processing module 1101 is specifically configured to determine that a path loss from the terminal device indicated by the configuration signaling to one of the at least one device is a path loss of a sidelink.
Optionally, the configuration signaling is at least one of the following signaling:
broadcasting the message;
a system message;
radio resource control, RRC, signaling;
media Access Control (MAC) layer signaling;
and downlink control information.
Optionally, the processing module 1101 is specifically configured to determine a transmission power of a data channel of a sidelink of the terminal device; or, determining the transmission power of the control channel of the side link of the terminal equipment; or, determining the transmission power of the broadcast channel of the sidelink of the terminal equipment; or, determining the transmission power of the reference signal of the side link of the terminal equipment; or determining the transmission power of the synchronization signal of the side link of the terminal equipment.
The apparatus in the embodiment shown in fig. 11 may be correspondingly used to implement the technical solutions in the method embodiments shown in fig. 5 to 10, which have similar implementation principles and technical effects and are not described herein again.
Fig. 12 is a schematic hardware structure diagram of a transmission power determination apparatus according to the present application. Referring to fig. 12, the transmission power determining device 12 includes: memory 121, processor 122, and communication interface 123, where memory 121, processor 122, and communication interface 123 may communicate; illustratively, the memory 121, the processor 122 and the communication interface 123 may communicate via the communication bus 124, the memory 121 being configured to store a computer program, the processor 122 executing the computer program to implement the method of the embodiment shown in fig. 5-10.
Optionally, the communication interface 123 may also include a transmitter and/or a receiver.
Optionally, the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.
The present application provides a storage medium for storing a computer program for implementing the method for determining transmit power as described above in the method embodiments of fig. 5-10.
The application provides a chip, where the chip is configured to support a determining device of transmission power to implement the functions shown in the embodiments of the present application (for example, determining a path loss of a sidelink according to a path loss from a terminal device to at least one device, where the at least one device includes at least one of a 5G base station gNB, a group header, a receiving end device, and a synchronization source of the terminal device; and determining the transmission power of the sidelink according to the path loss of the sidelink). When the chip in the first device implements the method described above, the chip includes a processing unit, and further, the chip may further include a communication unit, and the processing unit may be, for example, a processor, and when the chip includes a communication unit, the communication unit may be, for example, an input/output interface, a pin, a circuit, or the like. The processing unit executes all or part of the actions executed by each processing module in the embodiments of the present application, and the communication unit may execute corresponding receiving or sending actions, for example, receiving a configuration signaling sent by a network device, and the like. In another specific embodiment, the processing module of the receiving device in the present application may be a processing unit of a chip, and the receiving module or the transmitting module of the control device is a communication unit of the chip.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims (16)

1. A method for determining transmit power, comprising:
determining the path loss of a sidelink according to the path loss from a terminal device to at least one device, wherein the at least one device comprises at least one of a new air interface NR base station gNB, a group head and a synchronization source of the terminal device;
determining the transmission power of the side link according to the path loss of the side link;
the method further comprises the following steps:
if receiving a configuration signaling sent by a network device, wherein the configuration signaling indicates that the path loss from a terminal device to one of the at least one device is the path loss of a sidelink;
the determining the path loss of the sidelink according to the path loss from the terminal device to at least one device includes:
and determining that the path loss from the terminal equipment indicated by the configuration signaling to the gNB or the synchronization source or the group head is the path loss of the side link.
2. The method of claim 1, wherein the at least one device comprises at least two devices;
the determining the path loss of the sidelink according to the path loss from the terminal device to at least one device includes:
acquiring the path loss from the terminal equipment to each of the at least two pieces of equipment;
and determining the path loss with the minimum path loss of the at least two path losses as the path loss of the side link.
3. The method of claim 1, wherein the terminal device is connected to at least two network devices, wherein the at least two network devices comprise a first network device, and wherein the first network device is a primary base station of the terminal device;
the determining the path loss of the sidelink according to the path loss from the terminal device to at least one device includes:
and determining the path loss from the terminal equipment to the first network equipment as the path loss of a side link.
4. The method of claim 3,
the terminal equipment is in 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 equipment to an evolved node B (eNB); alternatively, the first and second electrodes may be,
the terminal equipment is in a new radio 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 equipment to the gNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new wireless access technology-double-connection NN-DC mode or multi-connection mode, and the path loss of the side link is the path loss from the terminal equipment to the gNB corresponding to the master cell group MCG.
5. The method of claim 1, wherein determining the path loss of the sidelink based on the path loss from the terminal device to the at least one device further comprises:
determining the path loss from the terminal equipment to the eNB as the path loss of the side uplink under the condition that the side uplink works on the carrier shared with the uplink; alternatively, the first and second electrodes may be,
and in the case that the side link works on the special carrier, determining the path loss from the terminal equipment to the gNB as the path loss of the side link.
6. The method of claim 1, wherein the configuration signaling is at least one of the following:
broadcasting the message;
a system message;
radio resource control, RRC, signaling;
media Access Control (MAC) layer signaling;
and downlink control information.
7. The method of any of claims 1-6, wherein the determining the transmit power of the sidelink comprises:
determining the transmission power of a data channel of a side link of the terminal equipment; alternatively, the first and second electrodes may be,
determining the transmission power of a control channel of a side link of the terminal equipment; alternatively, the first and second electrodes may be,
determining the transmission power of a broadcast channel of a sidelink of the terminal equipment; alternatively, the first and second electrodes may be,
determining the transmission power of a reference signal of a side link of the terminal equipment; alternatively, the first and second electrodes may be,
and determining the transmission power of the synchronization signal of the side link of the terminal equipment.
8. An apparatus for determining a transmission power, comprising:
a processing module, configured to determine a path loss of a sidelink according to a path loss from a terminal device to at least one device, where the at least one device includes at least one of a new air interface NR base station gNB, a group head, and a synchronization source of the terminal device;
the processing module is further configured to determine the transmit power of the sidelink according to the path loss of the sidelink;
the device further comprises:
the receiving module is used for receiving a configuration signaling sent by the network equipment; 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 sidelink;
the processing module is specifically configured to determine that a path loss from the terminal device indicated by the configuration signaling to the gNB or the synchronization source or the group head is a path loss of a sidelink.
9. The apparatus of claim 8, wherein the at least one device comprises at least two devices;
the processing module is specifically configured to obtain a path loss from the terminal device to each of the at least two devices; and determining the path loss with the minimum path loss of the at least two path losses as the path loss of the side link.
10. The apparatus of claim 8, wherein the terminal device is connected to at least two network devices, and wherein the at least two network devices comprise a first network device, and wherein the first network device is a master base station of the terminal device;
the processing module is specifically configured to determine that a path loss from the terminal device to the first network device is a path loss of a sidelink.
11. The apparatus of claim 10,
the terminal equipment is in 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 equipment to an evolved node B (eNB); alternatively, the first and second electrodes may be,
the terminal equipment is in a new radio 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 equipment to the gNB; alternatively, the first and second electrodes may be,
the terminal equipment is in a new wireless access technology-double-connection NN-DC mode or multi-connection mode, and the path loss of the side link is the path loss from the terminal equipment to the gNB corresponding to the master cell group MCG.
12. The apparatus of claim 8, wherein the processing module is specifically configured to determine a path loss from the terminal device to the eNB as a path loss of the sidelink if the sidelink operates on a carrier shared with the uplink; or, in the case that the sidelink operates on the dedicated carrier, determining that the path loss from the terminal device to the gNB is the path loss of the sidelink.
13. The apparatus of claim 8, wherein the configuration signaling is at least one of:
broadcasting the message;
a system message;
radio resource control, RRC, signaling;
media Access Control (MAC) layer signaling;
and downlink control information.
14. The apparatus according to any of claims 8-13, wherein the processing module is specifically configured to determine a transmit power of a data channel of a sidelink of the terminal device; or, determining the transmission power of the control channel of the side link of the terminal equipment; or, determining the transmission power of the broadcast channel of the sidelink of the terminal equipment; or, determining the transmission power of the reference signal of the side link of the terminal equipment; or determining the transmission power of the synchronization signal of the side link of the terminal equipment.
15. A transmission power determination apparatus comprising a memory and a processor, wherein the processor executes program instructions in the memory for implementing the transmission power determination method according to any one of claims 1 to 7.
16. A storage medium for storing a computer program for implementing the method for determining transmission power according to any one of claims 1 to 7.
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113677021A (en) * 2020-05-15 2021-11-19 华为技术有限公司 Data transmission method and related product
CN113950030A (en) * 2020-07-17 2022-01-18 华为技术有限公司 Information sending method and device
WO2023151366A1 (en) * 2022-02-09 2023-08-17 华为技术有限公司 Power determination method and equipment
CN117641549A (en) * 2022-08-12 2024-03-01 大唐移动通信设备有限公司 Power control method, terminal, network side equipment, device and storage medium of SL-PRS

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474826A (en) * 2009-07-22 2012-05-23 高通股份有限公司 Mitigation of interference due to peer-to-peer communication
CN104349437A (en) * 2013-08-09 2015-02-11 上海贝尔股份有限公司 Interference inhabiting method and user equipment
CN105307256A (en) * 2014-08-01 2016-02-03 电信科学技术研究院 D2D (Device-to-Device) transmitting power control method and device
CN106375930A (en) * 2015-07-22 2017-02-01 中兴通讯股份有限公司 Device-to-device (D2D) communication method and apparatus
CN106465284A (en) * 2014-05-08 2017-02-22 华为技术有限公司 System and method for power control command for device-to-device transmissions
CN107018564A (en) * 2017-06-01 2017-08-04 重庆邮电大学 A kind of D2D terminal transmitted power control methods in loss covering scene
CN107736074A (en) * 2015-06-26 2018-02-23 Lg 电子株式会社 Method and apparatus of the transceiver to the signal of apparatus of communication terminal in wireless communication system
WO2018123127A1 (en) * 2016-12-27 2018-07-05 日本電気株式会社 Device and method for wireless communication, and non-transitory computer-readable medium containing program

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7372898B2 (en) * 2002-12-11 2008-05-13 Interdigital Technology Corporation Path loss measurements in wireless communications
CN101632238A (en) * 2007-03-13 2010-01-20 高通股份有限公司 Power control method and apparatus
US9807709B2 (en) * 2012-05-31 2017-10-31 Interdigital Patent Holdings, Inc. Device to-device (D2D) cross link power control
EP3399808B1 (en) * 2013-02-15 2021-04-07 Samsung Electronics Co., Ltd. Method and apparatus for power control and multiplexing for device to device communication in wireless cellular communication system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474826A (en) * 2009-07-22 2012-05-23 高通股份有限公司 Mitigation of interference due to peer-to-peer communication
CN104349437A (en) * 2013-08-09 2015-02-11 上海贝尔股份有限公司 Interference inhabiting method and user equipment
CN106465284A (en) * 2014-05-08 2017-02-22 华为技术有限公司 System and method for power control command for device-to-device transmissions
CN105307256A (en) * 2014-08-01 2016-02-03 电信科学技术研究院 D2D (Device-to-Device) transmitting power control method and device
CN107736074A (en) * 2015-06-26 2018-02-23 Lg 电子株式会社 Method and apparatus of the transceiver to the signal of apparatus of communication terminal in wireless communication system
CN106375930A (en) * 2015-07-22 2017-02-01 中兴通讯股份有限公司 Device-to-device (D2D) communication method and apparatus
WO2018123127A1 (en) * 2016-12-27 2018-07-05 日本電気株式会社 Device and method for wireless communication, and non-transitory computer-readable medium containing program
CN107018564A (en) * 2017-06-01 2017-08-04 重庆邮电大学 A kind of D2D terminal transmitted power control methods in loss covering scene

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"3GPP TSG RAN WG1 Meeting #78bis R1-143744"，Remaining issues of D2D power control;CATT;《3GPP》;20141010;第1-4页 *
"3GPP TSG RAN WG1 Meeting#90 R1-1712520"，Sidelink Power Control for Wearable and IoT Use Cases;Intel Corporation;《3GPP》;20170825;第1-8页 *
"3GPP TSG RAN1 Meeting #90 R1-1712128"，Discussion on power control for feD2D;Huawei等;《3GPP》;20170825;第1-4页 *

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