WO2020063130A1 - Procédé et appareil de détermination de ressources - Google Patents

Procédé et appareil de détermination de ressources Download PDF

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Publication number
WO2020063130A1
WO2020063130A1 PCT/CN2019/099853 CN2019099853W WO2020063130A1 WO 2020063130 A1 WO2020063130 A1 WO 2020063130A1 CN 2019099853 W CN2019099853 W CN 2019099853W WO 2020063130 A1 WO2020063130 A1 WO 2020063130A1
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WO
WIPO (PCT)
Prior art keywords
bwp
resource
terminal
side link
sidelink
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Application number
PCT/CN2019/099853
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English (en)
Chinese (zh)
Inventor
王婷
唐浩
李新县
唐臻飞
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华为技术有限公司
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Publication of WO2020063130A1 publication Critical patent/WO2020063130A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of mobile communication technologies, and in particular, to a method and a device for determining resources.
  • a sidelink resource is introduced, that is, the terminal and the terminal can communicate through the sidelink resource.
  • the network side can be configured with multiple sidelink resources in advance and configured to the terminal, and the terminal selects one or more sidelink resources from the configured multiple sidelink resources to transmit sidelink data and other information.
  • This application provides a method and a device for determining a resource, so as to implement selection of a suitable sidelink resource for a terminal.
  • the present application provides a method for determining a resource, including: a terminal receiving configuration information, and the configuration information configures candidate side-link resources; the terminal determines a target side-link from the candidate side-link resources according to the characteristic information of the activated bandwidth part BWP. Link resources. Based on this solution, the terminal may determine the target side link resource from the candidate side link resources according to the characteristic information of the activated BWP.
  • the target side-link resource can be used as an activated side-link resource for terminal-to-terminal communication. Because the terminal can determine the target side link resource through the characteristic information of the activated BWP, the network side does not need to notify the terminal of the target side link resource through dedicated signaling, so the signaling overhead in the determination of the side link resource can be reduced.
  • the characteristic information of the target side link resource is the same as the characteristic information of the activated BWP, and the characteristic information includes at least one of subcarrier interval, cyclic prefix CP, waveform or frequency domain resource information.
  • the characteristic information includes frequency domain resource information, and the frequency domain resource information of the target side link resource is different from the frequency domain resource information of the activated BWP.
  • the terminal determines the target side link resource from the candidate side link resources according to the feature information of the activated BWP and the terminal's synchronization source, and the target side link resource corresponds to the synchronization source.
  • the terminal is configured with a corresponding relationship, and the corresponding relationship indicates that the target side link resource corresponds to the synchronization source.
  • the terminal determines the target side link resource from the candidate side link resources according to the feature information of the activated BWP and the terminal area identifier, and the target side link resource corresponds to the area identifier.
  • the terminal is configured with a corresponding relationship, and the corresponding relationship indicates that the target side link resource corresponds to the area identifier.
  • the activated BWP in any of the foregoing embodiments is an activated uplink BWP, an activated downlink BWP, an initially accessed uplink BWP, an initially accessed downlink BWP, a default uplink BWP, or The default downstream BWP.
  • the present application provides a method for determining a resource, which includes: an access network device sends configuration information to a terminal, and the configuration information configures a candidate side link resource; the access network device determines the candidate The target side link resource is determined from the side link resources. Based on this solution, the access network device can determine the target side link resource from the candidate side link resources according to the characteristic information of the activated BWP.
  • the target side-link resource can be used as an activated side-link resource for terminal-to-terminal communication.
  • the characteristic information of the target side link resource is the same as the characteristic information of the activated BWP, and the characteristic information includes at least one of subcarrier interval, cyclic prefix CP, waveform, or frequency domain resource information.
  • the characteristic information includes frequency domain resource information, and the frequency domain resource information of the target side link resource is different from the frequency domain resource information of the activated BWP.
  • the access network device determines the target side link resource from the candidate side link resources according to the feature information of the activated BWP and the synchronization source of the terminal, and the target side link resource corresponds to the synchronization source.
  • the access network device is configured with a corresponding relationship, and the corresponding relationship indicates that the target side link resource corresponds to the synchronization source.
  • the access network device determines the target side link resource from the candidate side link resources according to the feature information of the activated BWP and the terminal area identifier, and the target side link resource corresponds to the area identifier.
  • the access network device is configured with a corresponding relationship, and the corresponding relationship indicates that the target side link resource corresponds to the area identifier.
  • the activated BWP in any of the foregoing embodiments is an activated uplink BWP, an activated downlink BWP, an initially accessed uplink BWP, an initially accessed downlink BWP, a default uplink BWP, or The default downstream BWP.
  • the present application provides a communication device having the functions of implementing a terminal or an access network device in the foregoing method embodiments.
  • This function can be realized by hardware, and can also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes: a processor, a memory, a bus, and a communication interface; the memory stores computer-executable instructions, the processor is connected to the memory through the bus, and when the communication device is running, the communication device The processor executes the computer execution instructions stored in the memory, so that the communication device executes the resource determining method in any one of the first aspect to the second aspect, or any implementation manner of the first aspect to the second aspect.
  • the communication device may be a terminal, an access network device, or the like.
  • the communication device includes a processor, and the processor is coupled to a memory, where the memory is used to store a program, and when the program is executed by the processor, to cause the communication device to execute The resource determination method in any one of the first aspect to the second aspect, or any implementation manner of the first aspect to the second aspect.
  • the communication device may also be a chip, such as a chip of a terminal, or a chip in an access network device.
  • the chip includes a processing unit, and optionally, a storage unit.
  • the chip may be used for The resource determination method in any one of the first aspect to the second aspect, or any implementation manner of the first aspect to the second aspect is performed.
  • the present application provides a storage medium on which a computer program or instructions are stored, and when the computer program or instructions are executed, the computer executes the first aspect to the second aspect, or the first aspect to the second aspect when executed.
  • the present application provides a computer program product.
  • the computer program product includes computer software instructions that can be loaded by a processor to implement a process in a resource determination method in any one of the above aspects.
  • the present application provides a system including the terminal in the first aspect or any implementation manner of the first aspect, and the access in the second aspect or any implementation manner of the second aspect. Network equipment.
  • FIG. 1 is a schematic diagram of a possible network architecture provided by this application.
  • FIG. 2 is a schematic flowchart of a resource determination method provided by the present application.
  • FIG. 3 is a schematic diagram of a device provided by this application.
  • FIG. 5 is a schematic diagram of an access network device provided by the present application.
  • a schematic diagram of a possible network architecture applicable to this application includes at least one terminal 10 that communicates with an access network device 20 through a wireless interface. For clarity, only one Access network equipment and a terminal.
  • the terminal is a device with wireless transceiver function.
  • the terminal can be deployed on land, including indoor or outdoor, handheld or vehicle; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and Satellite first class).
  • the terminal may be a mobile phone, a tablet, a computer with a wireless transmitting and receiving function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, or an industrial control.
  • UE user equipment
  • the terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function.
  • Terminals can also be referred to as terminal equipment, user equipment (UE), access terminal equipment, vehicle terminals, industrial control terminals, UE units, UE stations, mobile stations, mobile stations, remote stations, remote terminal equipment, mobile Equipment, UE terminal equipment, terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • the terminal can also be fixed or mobile. This embodiment of the present application is not limited to this.
  • An access network device which can also be called a radio access network (RAN) device, is a device that provides wireless communication functions for terminals.
  • the access network equipment includes, for example, but is not limited to, a next-generation base station (gNB) in 5G, an evolved node B (eNB), a radio network controller (RNC), and a node B ( node (B, NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home nodeB, or home nodeB, HNB), baseband unit (baseBand unit) , BBU), transmission point (transmitting and receiving point (TRP), transmission point (transmitting point, TP), mobile switching center, etc.
  • gNB next-generation base station
  • eNB evolved node B
  • RNC radio network controller
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home nodeB, or home nodeB, HNB
  • baseband unit base
  • the access network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the
  • the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network.
  • the terminal can communicate with multiple access network devices of different technologies. For example, the terminal can communicate with access network devices that support long-term evolution (LTE) networks, and can also communicate with access network devices that support 5G networks. It can also support dual connection with access network equipment of LTE network and access network equipment of 5G network.
  • LTE long-term evolution
  • This application is applicable to scenarios of homogeneous networks and heterogeneous networks, and there are no restrictions on transmission points. It can be macro base stations and macro base stations, micro base stations and micro base stations, and multi-point coordinated transmission between macro base stations and micro base stations. .
  • the application is applicable to both low-frequency scenes (sub 6G) and high-frequency scenes (above 6G).
  • Air interface resources may include time domain resources and frequency domain resources, and time domain resources and frequency domain resources may also be referred to as time frequency resources.
  • the frequency domain resources may be located in a frequency range.
  • the frequency range may also be referred to as a band or a frequency band, and the width of the frequency domain resources may be referred to as the bandwidth (BW) of the frequency domain resources.
  • the numerology includes a subcarrier interval and / or a cyclic prefix (CP). That is, the subcarrier interval is different for different numerology, or the CP is different, or the subcarrier interval and CP are different.
  • CP cyclic prefix
  • the subcarrier interval may include 15kHZ (kilohertz), 30kHZ, 60kHZ, 120kHZ, and the like, and CP includes Normal CP and Extended CP and the like.
  • the frame structure parameter may also be simply referred to as a parameter.
  • the time-frequency resource may be a resource grid, including the time domain and the frequency domain.
  • the unit of the time domain resource may be a symbol
  • the unit of the frequency domain resource may be a subcarrier.
  • the smallest resource unit in the resource grid can be called a resource element (RE).
  • a subcarrier and a symbol determine an RE.
  • a resource block (RB) may include one or more subcarriers in the frequency domain, for example, it may be 12 subcarriers.
  • a time slot may include one or more symbols in the time domain.
  • a time slot in a new radio (NR) may include 14 symbols (under a common CP) or 12 symbols (under an extended cyclic prefix).
  • a resource grid can be defined for a frame structure parameter.
  • resource grids include Subcarriers and OFDM symbols. among them, It refers to the size of the resource grid. For example, it may refer to the number of RBs included, where ⁇ is a subcarrier interval configuration, and the subscript x is downlink or uplink.
  • a resource grid can include X2 RBs, where X2 is a positive integer.
  • the X2 RBs can be sequentially numbered from 0 to X2-1 based on the direction of frequency increase to obtain the numbering value of each RB.
  • the term “numbered value” may also be referred to as “identification” or “index”.
  • the subscript x is downlink or uplink.
  • one subframe may include several slots. By way of example, It refers to the number of slots included in one subframe under the subcarrier interval configuration ⁇ . It refers to the number of symbols contained in a slot, for example, it can be 14.
  • a resource grid can be defined in the carrier, where the starting position of the resource grid in the carrier is It can also be described as the starting position of the first subcarrier in the resource grid in the carrier is The This can be indicated by higher layer signaling.
  • the access network device can allocate data channels (such as Physical Downlink Shared Channel (PDSCH)) and physical uplink shared channel (Physical Downlink shared channel) from the resource grid to the terminal through control information.
  • data channels such as Physical Downlink Shared Channel (PDSCH)
  • Physical Uplink shared channel Physical Downlink shared channel
  • Uplink Shared CHANnel, PUSCH
  • the control information may indicate a symbol and / or an RB to which the data channel is mapped, and the access network device and the terminal perform data transmission through the data channel at the allocated time-frequency resource.
  • the above data transmission may include downlink data transmission and uplink data transmission.
  • the transmission of downlink data (such as data carried by PDSCH) may refer to the access network equipment sending data to the terminal, and the transmission of uplink data (such as data carried by PUSCH) may refer to the terminal Send data to the access network device.
  • Data can be generalized data, such as user data, system information, broadcast information, or other information. Exemplarily, the data is data carried on the PDSCH.
  • bandwidth part bandwidth parth, BWP
  • BWP is a continuous frequency domain resource.
  • the bandwidth portion may also be referred to as the carrier bandwidth portion (Carrier BWP).
  • the configuration of the carrier BWP includes a frequency starting RB, a bandwidth (BW) and a corresponding numerology of a bandwidth part of the carrier.
  • the bandwidth may refer to the number of RBs included in the carrier bandwidth portion.
  • the terminal sends and receives data on the activated BWP.
  • the BWP parameter configuration is introduced as follows: For one uplink BWP or downlink BWP, the terminal will be configured with one or more of the following parameters:
  • the high-level parameters (such as locationAndBandwidth) indicate the first RB (starting RB) and the number of consecutive RBs in the BWP. According to the starting position and the number of RBs, the frequency domain position of the BWP in the carrier can be determined.
  • the common configuration parameters refer to the parameters used by all BWPs, that is, the common configuration parameters of all BWPs are the same.
  • the dedicated configuration parameter may be a parameter configured for one BWP, and the dedicated configuration parameters of different BWPs may be different or the same, which is not limited in this application.
  • the common configuration parameters may be broadcasted through a system message, each terminal may be the same, and the dedicated configuration parameters may be indicated by RRC signaling, and each terminal may be different.
  • the BWP resources may include BWP resources of sidelink BWP resources and Uu air interfaces (Uu air interfaces can be understood as universal UE network interfaces).
  • the sidelink BWP resource is used for communication between the terminal and the Uu air interface BWP resource is used for communication between the terminal and the access network device.
  • the BWP of the Uu air interface here may also be referred to as Uu BWP for short.
  • Sidelink is used for communication between a terminal and a terminal, and may include a physical side link shared channel (PSSCH) and a physical side link control channel (PSCCH).
  • PSSCH physical side link shared channel
  • PSCCH physical side link control channel
  • SA scheduling assignment
  • the sidelink communication may further include a physical sidelink uplink control channel (PSUCCH).
  • PSDCH physical sidelink uplink control channel
  • the physical side-link uplink control channel may also be simply referred to as a side-link uplink control channel.
  • the uplink uplink control channel is used to transmit at least one piece of information such as channel state information (CSI), hybrid automatic repeat request (HARQ) information, and the like.
  • CSI channel state information
  • HARQ hybrid automatic repeat request
  • the HARQ information may include acknowledgement information (acknowledgement, ACK) or negative acknowledgement (negtive acknowledgement, NACK).
  • the sidelink resource may include a sidelink BWP resource, or a sidelink resource pool, or a sidelink BWP resource and a sidelink resource pool.
  • the terminal determines the resource pool (resource pool) transmitted by the sidelink, which specifically includes: a transmission resource pool (reception resource pool) and a receiving resource pool (receiving resource pool).
  • the resource pool may include two parts of resources, one is a scheduling assignment (SA) resource, which is used to transmit scheduling information, and the other is a data resource, which is used to transmit data . Therefore, the sending resource pool may include scheduling and allocating resources and data resources, and the receiving resource pool may also include scheduling and allocating resources and data resources.
  • SA scheduling assignment
  • the sidelink resource corresponds to the area identifier.
  • a geographic area may be divided into multiple sub-geographical areas, each sub-geographical area is identified by a zone ID (ZoneID), and a sidelink resource may correspond to one or more zone IDs.
  • the meaning of the area identifier corresponding to the sidelink resource can be understood as that the terminal located in the area corresponding to the area identifier can use the sidelink resource, or it can be understood that the sidelink resource is for the area identifier, or can be understood as the The sidelink resource can be used by the terminal in the area corresponding to the area identifier.
  • the area identifier may be included in the configuration information of the sidelink resource, and the corresponding relationship between the area identifier and the sidelink resource may be determined according to the configuration information.
  • the identifier of the area corresponding to the sidelink resource 1 is: ZoneID1.
  • the identifier of the area corresponding to the sidelink resource 2 is: ZoneID2.
  • the identifiers of the areas corresponding to the sidelink resource 3 are: ZoneID3 and ZoneID4.
  • the sidelink resource corresponds to the synchronization source.
  • the meaning of the synchronization source corresponding to the sidelink resource can be understood as that when the terminal uses the synchronization source for synchronization, the terminal can use the sidelink resource, or it can be understood that the sidelink resource is for the terminal under the synchronization source, or it can be It is understood that the sidelink resource can be used by a terminal that uses the synchronization source for synchronization.
  • the configuration information of the sidelink resource may include the information of the synchronization source, and then the corresponding relationship between the synchronization source and the sidelink resource may be determined according to the configuration information.
  • synchronization sources there are three types of synchronization sources, such as a satellite, a base station, and a terminal, respectively.
  • a synchronization source there is a corresponding synchronization method.
  • the synchronization method is satellite synchronization
  • the synchronization method is base station synchronization
  • the synchronization method is terminal.
  • a sidelink resource can correspond to one or more synchronization sources.
  • the terminal when the synchronization source of the terminal is a satellite, the terminal performs time-frequency synchronization according to a signal sent by the satellite.
  • the terminal when the synchronization source of the terminal is a base station, the terminal performs time-frequency synchronization according to a signal sent by the base station.
  • the terminal when the synchronization source of a terminal is a terminal, the terminal performs time-frequency synchronization according to a signal sent by another terminal.
  • the synchronization source corresponding to the sidelink resource 1 is: a satellite.
  • the synchronization source corresponding to the sidelink resource 2 is: a base station.
  • the synchronization source corresponding to the sidelink resource 3 is: a terminal.
  • the sidelink resource corresponds to the area identifier and the synchronization source.
  • the identifier of the area corresponding to the sidelink resource 1 is: ZoneID1, ZoneID2, ZoneID3, and the corresponding synchronization source is: base station, terminal.
  • the identifiers of the areas corresponding to the sidelink resource 2 are: ZoneID4, ZoneID5, and the corresponding synchronization sources are: satellite, base station, and terminal.
  • the identifier of the area corresponding to sidelink resource 3 is: ZoneID6, and the corresponding synchronization source is: base station.
  • the access network device side can configure multiple sidelink resources for the terminal, but there is no corresponding solution on how the terminal selects a sidelink resource from the configured multiple sidelink resources for sidelink transmission.
  • this application provides a method for determining resources. As shown in FIG. 2, this embodiment provides a method for determining resources, which allows a terminal to select a sidelink resource from a plurality of configured sidelink resources for sidelink transmission.
  • the method includes the following steps:
  • Step 201 The access network device sends configuration information to the terminal. Accordingly, the terminal can receive the configuration information.
  • This configuration information configures the candidate sidelink resource.
  • the access network device configures candidate sidelink resources for the terminal through the configuration information, and the candidate sidelink resources include multiple sidelink resources.
  • the configured sidelink resources may include sidelink BWP resources, and / or, sidelink resource pools.
  • the candidate sidelink resource configured by the configuration information may be a sending sidelink resource or a receiving sidelink resource. That is, the method of this application can be used to configure both the sending sidelink resource and the receiving sidelink resource.
  • sending a sidelink resource may refer to a downlink sidelink resource
  • receiving a sidelink resource may refer to an uplink sidelink resource
  • sending a sidelink resource may refer to an uplink sidelink resource
  • receiving a sidelink resource may refer to a downlink sidelink resource
  • the access network device may configure candidate sidelink resources for the terminal through system information (such as a system information block SIB21) or broadcast information.
  • system information such as a system information block SIB21
  • broadcast information such as a system information block SIB21
  • the access network device may also configure candidate sidelink resources through radio resource control (RRC) signaling (such as public RRC signaling, or dedicated RRC signaling, etc.).
  • RRC radio resource control
  • the terminal may be pre-configured with candidate sidelink resources.
  • the pre-configuration in this application can be understood as pre-configuration, pre-defined, pre-defined, stored, pre-stored, pre-negotiated, cured, or pre-fired.
  • Step 202 The terminal determines a target sidelink resource from the candidate sidelink resources according to the feature information of the activated BWP.
  • the activated BWP refers to the activated BWP of the Uu port communication, that is, the BWP used for communication between the terminal and the access network device.
  • the activated BWP can be understood as the BWP currently used by the terminal to communicate with the access network device.
  • activation can be achieved, for example, by switching the radio frequency or adjusting the filter tap coefficient.
  • activating BWP is to enable the radio frequency of the corresponding BWP, or activating BWP is to adjust the filter tap coefficient of the corresponding BWP.
  • the activated BWP is an activated uplink BWP, or an activated downlink BWP, or an initially accessed uplink BWP, or an initially accessed downlink BWP, or a default uplink BWP, or Is the default downstream BWP.
  • the terminal can receive downlink reference signals (including downlink demodulation reference signals (DMRS)), channel state information reference signals (CSI-RS), and physical downlink control channels (physical) on the activated BWP.
  • downlink control channel including downlink demodulation reference signals (DMRS)), channel state information reference signals (CSI-RS), and physical downlink control channels (physical) on the activated BWP.
  • downlink control channel including downlink demodulation reference signals (DMRS)), channel state information reference signals (CSI-RS), and physical downlink control channels (physical) on the activated BWP.
  • downlink control channel including downlink demodulation reference signals (DMRS)
  • CSI-RS channel state information reference signals
  • Physical downlink control channels physical downlink control channels
  • PDCCH downlink control channel
  • PDSCH physical downlink data channel
  • PSSCH physical side link shared channel
  • PSCCH physical side link control channel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the terminal may also send uplink reference signals (including uplink DMRS), physical uplink control channel (PUCCH), physical uplink data channel (physical uplink link channel, PUSCH), and physical side link sharing on the activated bandwidth part Channel (Physical Sidelink Shared Channel (PSSCH)), Physical Sidelink Control Channel (PSCCH), Physical Sidelink Discovery Channel (PSDCH), Physical Sidelink Broadcast Channel (Physical Sidelink Link Broadcast Channel) Channel, PSBCH).
  • uplink DMRS uplink reference signals
  • PUCCH physical uplink control channel
  • PUSCH physical uplink data channel
  • PSSCH Physical Sidelink Shared Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH Physical Sidelink Control Channel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the terminal After the terminal determines the target sidelink resource, the terminal can activate the target sidelink resource, or it is understood that the terminal performs data transmission on the target sidelink resource. Or it is understood that the terminal switches to the target sidelink resource for data transmission.
  • the terminal may receive at least one of a downlink reference signal (including a downlink DMRS), a CSI-RS, a PSSCH, a PSCCH, a PSDCH, a PSBCH, a PSUCCH, and the active sidelink resource.
  • the terminal may also send at least one of an uplink reference signal (including uplink DMRS), PSUCCH, PSSCH, PSCCH, PSDCH, and PSBCH on the sidelink resource.
  • the characteristic information of the activated BWP may include, for example, at least one of subcarrier interval, CP, waveform, or frequency domain resource information.
  • the frequency domain resource information herein is used to indicate a continuous or discrete frequency resource.
  • the frequency resource indicated by the frequency domain resource information may be a frequency band, or a frequency band, or a frequency.
  • the terminal may determine the target sidelink resource from the candidate sidelink resources according to the feature information of the activated BWP.
  • the target sidelink resource can be used as an activated sidelink resource for terminal-to-terminal communication. Because the terminal can determine the target side link resource through the characteristic information of the activated BWP, the network side does not need to notify the terminal of the target side link resource through dedicated signaling, so the signaling overhead in the determination of the side link resource can be reduced.
  • Step 203 The access network device determines a target side link resource from the candidate side link resources according to the characteristic information of the activated BWP.
  • the method for the access network device to determine the target side link resource may be the same as the method for the terminal to determine the target side link resource, so the target side link resource determined by the access network device is the same as the target side link resource determined by the terminal.
  • the terminal or the access network device may also determine a resource for transmission from the target sidelink resource. If the target sidelink resource determined in the above steps is a sending sidelink resource, the sending sidelink resource can be used for the terminal to send information. If the target sidelink resource determined in the above steps is a receiving sidelink resource, the receiving sidelink resource can be used for the terminal to receive information.
  • step 202 The following describes the specific implementation manner of step 202 above in combination with different situations.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information includes at least one of subcarrier interval, CP, waveform, or frequency domain resource information.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is the subcarrier interval.
  • the terminal selects a sidelink resource with the same subcarrier interval as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the terminal is configured with 4 UuBWP, UuBWP1 subcarrier spacing is 15kHz, UuBWP2 subcarrier spacing is 30kHz, UuBWP3 subcarrier spacing is 60kHz, UuBWP4 subcarrier spacing is 120kHz .
  • the terminal is configured with 4 candidate sidelink resources, the subcarrier interval of sidelink resource 1 is 15 kHz, the subcarrier interval of sidelink resource 2 is 30 kHz, the subcarrier interval of sidelink resource 3 is 60 kHz, and the subcarrier interval of sidelink resource 4 is 120 kHz. If the activated BWP of the Uu air interface is Uu BWP1, that is, the subcarrier interval of the Uu air interface is 15 kHz, the terminal determines that the sidelink resource 1 is the target sidelink resource. If the activated BWP of the Uu air interface is Uu BWP2, that is, the subcarrier interval of the Uu air interface is 30 kHz, the terminal determines that the sidelink resource 2 is the target sidelink resource. Based on this method, the processing complexity of the terminal can be reduced, and the terminal only needs to send or receive signals on resources of one subcarrier interval at a time.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is a waveform.
  • the terminal selects a sidelink resource with the same waveform as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the terminal is configured with 4 Uu air interface BWPs.
  • the UuBWP1 waveform is a single carrier
  • the UuBWP2 waveform is a single carrier
  • the UuBWP3 waveform is a multicarrier
  • the UuBWP4 waveform is a multicarrier.
  • the terminal is configured with 4 candidate sidelink resources.
  • the waveform of sidelink resource 1 is a single carrier
  • the waveform of sidelink resource 2 is a single carrier
  • the waveform of sidelink resource 3 is a multi-carrier
  • the waveform of sidelink resource 4 is a multi-carrier. If the activated BWP of the Uu air interface is Uu BWP1, that is, the waveform of the Uu air interface is a single carrier, the terminal determines that the sidelink resource 1 and / or the sidelink resource 2 are the target sidelink resources. If the activated BWP of the Uu air interface is Uu BWP3, that is, the waveform of the Uu air interface is multi-carrier, the terminal determines that the sidelink resource 3 and / or the sidelink resource 4 are the target sidelink resources. Based on this method, the terminal can reduce the processing complexity of the terminal, and the terminal only needs to send or receive a signal of one waveform at a time.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is frequency domain resource information.
  • the terminal selects a sidelink resource with the same frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the terminal is configured with four Uu air interface BWPs, UuBWP1's band is band1, UuBWP2's band is band2, UuBWP3's band is band3, and UuBWP4's band is band4.
  • the terminal is configured with 4 candidate sidelink resources, the frequency band of sidelink resource 1 is band1, the frequency band of sidelink resource 2 is band2, the frequency band of sidelink resource 3 is band3, and the frequency band of sidelink resource 4 is band4. If the activated BWP of the Uu air interface is Uu BWP1, that is, the frequency band of the Uu air interface is band1, the terminal determines that the sidelink resource 1 is the target sidelink resource. If the activated BWP of the Uu air interface is Uu BWP2, that is, the frequency band of the Uu air interface is band2, the terminal determines that the sidelink resource 2 is the target sidelink resource. Based on this method, the terminal can reduce the switching time of the center frequency of the terminal, and reduce the processing complexity and processing delay. For a single transmission link (TX chain) terminal, the complexity can be reduced.
  • TX chain transmission link
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is CP.
  • the terminal selects a sidelink resource with the same CP as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the characteristic information of the target sidelink resource is the same as the characteristic information of the activated BWP, where the characteristic information is the subcarrier interval and the CP.
  • the terminal selects a sidelink resource with the same subcarrier interval and CP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is CP and waveform.
  • the terminal selects a sidelink resource with the same CP and waveform as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is a subcarrier interval and a waveform.
  • the terminal selects a sidelink resource with the same subcarrier interval and waveform as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is subcarrier interval and frequency domain resource information.
  • the terminal selects a sidelink resource with the same subcarrier interval and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is CP and frequency domain resource information.
  • the terminal selects a sidelink resource with the same CP and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is waveform and frequency domain resource information.
  • the terminal selects a sidelink resource with the same waveform and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is subcarrier, CP, and frequency domain resource information.
  • the terminal selects a sidelink resource with the same subcarrier, CP, and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is subcarrier, waveform, and frequency domain resource information.
  • the terminal selects a sidelink resource having the same subcarrier, waveform, and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is the subcarrier interval, CP, and waveform.
  • the terminal selects a sidelink resource with the same subcarrier interval, CP, and waveform from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is CP, waveform, and frequency domain resource information.
  • the terminal selects a sidelink resource with the same CP, waveform, and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the feature information of the target sidelink resource is the same as the feature information of the activated BWP, where the feature information is subcarrier, CP, waveform, and frequency domain resource information.
  • the terminal selects a sidelink resource with the same subcarrier, CP, waveform, and frequency domain resource information as the activated BWP from the candidate sidelink resources as the target sidelink resource.
  • the target sidelink resource determined by the terminal is one or more of the candidate sidelink resources, and the determined target sidelink resource has the same characteristic information as the activated BWP.
  • the characteristic information here may be the subcarrier interval. , CP, waveform, or frequency domain resource information.
  • Implementation method two The frequency domain resource information of the target sidelink resource is different from the frequency domain resource information of the activated BWP.
  • the terminal selects a sidelink resource with different frequency domain resource information from the activated BWP from the candidate sidelink resources as the target sidelink resource. Take the frequency domain resource information as a band.
  • the terminal is configured with 4 Uu air interface BWPs, UuBWP1 is a band1, UuBWP2 is a band2, UuBWP3 is a band3, and UuBWP4 is a band4.
  • the terminal is configured with 4 candidate sidelink resources, the frequency band of sidelink resource 1 is band1, the frequency band of sidelink resource 2 is band2, the frequency band of sidelink resource 3 is band3, and the frequency band of sidelink resource 4 is band4.
  • the terminal determines one or more of the sidelink resource 2, sidelink resource 3, and sidelink resource 4 as the target sidelink resource. For example, determine sidelink resource 2 as the target sidelink resource, or determine sidelink resource 3 as the target sidelink resource, or determine sidelink resource 4 as the target sidelink resource, or determine sidelink resource 2 and sidelink resource 3 as the target sidelink resource, or determine sidelink resource 2 and sidelink resource. 4 as the target sidelink resource, or determine the sidelink resource 3sidelink resource 4 as the target sidelink resource.
  • the terminal determines one or more of the sidelink resource 1, sidelink resource 3, and sidelink resource 4 as the target sidelink resource. For example, determine sidelink resource 1 as the target sidelink resource, or determine sidelink resource 3 as the target sidelink resource, or determine sidelink resource 4 as the target sidelink resource, or determine sidelink resource 1 and sidelink resource 3 as the target sidelink resource, or determine sidelink resource 1 and sidelink resource. 4 as the target sidelink resource, or determine the sidelink resource 3sidelink resource 4 as the target sidelink resource.
  • the target sidelink resource determined by the terminal is different from the frequency band of the BWP of the Uu air interface, and concurrent uplink and sidelink can be achieved to avoid resource conflicts.
  • the throughput of data can be improved, and multiple types of data can be received or sent at the same time.
  • the frequency domain resource information of the target sidelink resource and the frequency domain resource information of the activated BWP are different.
  • the relationship between the target sidelink resource and other characteristic information of the activated BWP there is no limitation.
  • one or more of the same subcarrier interval, CP, and waveform between the target sidelink resource and the activated BWP may be limited, such as limiting
  • the subcarrier spacing between the target sidelink resource and the activated BWP is the same, or the waveform between the target sidelink resource and the activated BWP is the same, or the CP between the target sidelink resource and the activated BWP is the same, or the target sidelink is limited
  • the subcarrier spacing and waveforms between the resource and the activated BWP are the same, and so on.
  • step 202 may also be replaced by the following implementation method.
  • Implementation method three The terminal determines the target sidelink resource from the candidate sidelink resources according to the correspondence between the sidelink resources and the Uu BWP.
  • the corresponding relationship may be configured in the terminal in advance, or configured by the access network device through physical layer information, or may also be configured by the access network device through configuration information in step 201.
  • the sidelink resources may correspond to Uu and BWP in a one-to-one manner according to the increasing order of identification (ID).
  • sidelink resource 1 corresponds to UuBWP1
  • sidelink resource 2 corresponds to UuBWP2
  • sidelink resource 3 corresponds to UuBWP3, and so on.
  • multiple sidelink resources correspond to the same UuBWP.
  • N sidelink resources M Uu BWP, N is an integer greater than 1, M is a positive integer, and N is greater than or equal to M.
  • N sidelink resources can be divided into M groups, corresponding to M Uu and BWP respectively.
  • the N sidelink resources are 0- (N-1), and the corresponding relationship can be established as follows:
  • the first set of sidelink resources Corresponds to Uu BWP 1;
  • the second set of sidelink resources Corresponds to Uu BWP 2;
  • Group M sidelink resources Corresponds to Uu BWP M.
  • the first set of sidelink resources Corresponds to Uu BWP 1;
  • the second set of sidelink resources Corresponds to Uu BWP 2;
  • Group M sidelink resources Corresponds to Uu BWP M.
  • the first set of sidelink resources Corresponds to Uu BWP 1;
  • the second set of sidelink resources Corresponds to Uu BWP 2;
  • Group M sidelink resources Corresponds to Uu BWP M.
  • rounding up can also be understood as rounding down +1, and rounding down can also be understood as rounding up -1. It can be understood that if the value to be rounded is an integer, it may not be rounded.
  • N Uu BWPs can be selected from M Uu BWPs, and then one sidelink resource corresponds to one Uu BWP.
  • P Uu BWPs from M Uu BWPs, where P is a positive integer less than N, and then divide the N sidelink resources into P groups according to the above method, respectively corresponding to the P Uu BWPs.
  • the terminal obtains the corresponding relationship, according to the activated BWP and the corresponding relationship, it is determined that one or more sidelink resources corresponding to the activated BWP are the target sidelink resources.
  • step 202 may also be replaced by the following implementation method.
  • Implementation method four The terminal determines the target sidelink resource from the candidate sidelink resources according to the synchronization source of the terminal and the correspondence between the sidelink resources and the synchronization source.
  • the synchronization source is a satellite
  • the corresponding synchronization method is satellite synchronization.
  • the satellite synchronization may be Global Navigation Satellite System (GNSS) synchronization.
  • GNSS Global Navigation Satellite System
  • the synchronization source is a base station
  • the corresponding synchronization method is Base station synchronization.
  • the base station synchronization can be gNB synchronization or eNB synchronization.
  • the synchronization source is a terminal
  • the corresponding synchronization mode is terminal synchronization.
  • the terminal synchronization can be new radio (NR) terminal synchronization or long term evolution. evolution, LTE) terminal synchronization.
  • NR new radio
  • the correspondence relationship may be configured in the terminal in advance, or may be configured by the access network device through physical layer information, or may also be configured by the access network device through configuration information in step 201.
  • one-to-one correspondence with the satellite, the base station, and the terminal may be performed according to the increasing order of the identification (ID) of the sidelink resource.
  • ID the identification
  • sidelink resource 1 corresponds to a satellite
  • sidelink resource 2 corresponds to a base station
  • sidelink resource 3 corresponds to a terminal
  • sidelink resource 4 corresponds to a satellite
  • sidelink resource 5 corresponds to a base station
  • sidelink resource 6 corresponds to a terminal, and so on.
  • multiple sidelink resources correspond to the same synchronization source.
  • N sidelink resources there are N sidelink resources, M synchronization sources, N is an integer greater than 1, M is a positive integer, and N is greater than or equal to M.
  • the N sidelink resources can be divided into M groups, corresponding to M synchronization sources, respectively.
  • the N sidelink resources are 0- (N-1), and the corresponding relationship can be established as follows:
  • the first set of sidelink resources Corresponds to synchronization source 1;
  • the second set of sidelink resources Corresponds to synchronization source 2;
  • Group M sidelink resources Corresponds to the synchronization source M.
  • the first set of sidelink resources Corresponds to synchronization source 1;
  • the second set of sidelink resources Corresponds to synchronization source 2;
  • Group M sidelink resources Corresponds to the synchronization source M.
  • the first set of sidelink resources Corresponds to synchronization source 1;
  • the second set of sidelink resources Corresponds to synchronization source 2;
  • Group M sidelink resources Corresponds to the synchronization source.
  • rounding up can also be understood as rounding down +1, and rounding down can also be understood as rounding up -1. It can be understood that if the value to be rounded is an integer, it may not be rounded.
  • N synchronization sources may be selected from M synchronization sources, and then one sidelink resource corresponds to one synchronization source.
  • P synchronization sources may be selected from M synchronization sources, where P is a positive integer less than N, and then divide the N sidelink resources into P groups according to the above method, respectively corresponding to the P synchronization sources.
  • the value of M is 3, which includes three synchronization sources, and synchronization source 1 is a satellite, synchronization source 2 is a base station, and synchronization source 3 is a terminal.
  • sidelink resource 1 corresponds to a satellite
  • sidelink resource 2 corresponds to a base station
  • sidelink resource 3 corresponds to a terminal. If the synchronization source where the terminal is located is a satellite, the terminal determines that the sidelink resource 1 is the target sidelink resource, so the terminal can transmit or receive the sidelink signal in the sidelink resource 1.
  • the terminal determines that the sidelink resource 2 is the target sidelink resource, so the terminal can transmit or receive the sidelink signal in the sidelink resource 2. If the synchronization source where the terminal is located is the terminal, the terminal determines that the sidelink resource 3 is the target sidelink resource, so the terminal can transmit or receive the sidelink signal in the sidelink resource 3.
  • different sidelink resources are configured for different synchronization sources, which helps to avoid the probability and interference of resource conflicts between users of different synchronization sources.
  • the sidelink resource is determined in an implicit manner.
  • step 202 may also be replaced by the following implementation method.
  • Implementation method five The terminal determines the target sidelink resource from the candidate sidelink resources according to the correspondence between the sidelink resources and the zone ID.
  • the correspondence relationship may be configured in the terminal in advance, or may be configured by the access network device through physical layer information, or may also be configured by the access network device through configuration information in step 201.
  • the sidelink resources may correspond to the area identifiers in a one-to-one manner according to the increasing order of the identifiers (IDs). For example, sidelink resource 1 corresponds to area identifier 1, sidelink resource 2 corresponds to area identifier 2, sidelink resource 3 corresponds to area identifier 3, and so on.
  • multiple sidelink resources correspond to the same area identifier.
  • N sidelink resources there are N sidelink resources, M area identifiers, N is an integer greater than 1, M is a positive integer, and N is greater than or equal to M.
  • the N sidelink resources can be divided into M groups, which respectively correspond to M area identifiers.
  • the N sidelink resources are 0- (N-1), and the corresponding relationship can be established as follows:
  • the first set of sidelink resources Corresponding area identification 1;
  • the second set of sidelink resources Corresponding area identifier 2;
  • Group M sidelink resources The corresponding area identifier M.
  • the first set of sidelink resources Corresponding area identification 1;
  • the second set of sidelink resources Corresponding area identifier 2;
  • Group M sidelink resources The corresponding area identifier M.
  • the first set of sidelink resources Corresponding area identification 1;
  • the second set of sidelink resources Corresponding area identifier 2;
  • Group M sidelink resources The corresponding area identifier M.
  • rounding up can also be understood as rounding down +1, and rounding down can also be understood as rounding up -1. It can be understood that if the value to be rounded is an integer, it may not be rounded.
  • N area identifiers may be selected from the M area identifiers, and then one sidelink resource corresponds to one area identifier.
  • P area identifiers may be selected from M synchronization sources, where P is a positive integer less than N, and then divide the N sidelink resources into P groups according to the above method, respectively corresponding to the P area identifiers.
  • one or more sidelink resources corresponding to the terminal area identifier are determined as the target sidelink resources.
  • the probability of resource conflicts of the terminal can be reduced, and the overhead can be reduced at the same time.
  • Configuring different sidelink resources for different area identifiers can also avoid the probability and interference of resource conflicts between users with different area identifiers.
  • By determining the sidelink resource according to the terminal area identifier it is helpful to avoid the signaling of activation or deactivation of the sidelink resource, that is, the sidelink resource is determined in an implicit manner.
  • Implementation method 6 the above implementation methods 1, implementation method 2, implementation method 3, implementation method 4, implementation method 5, any two or more implementation methods are combined, and any combination does not include implementation at the same time Method one and implementation method two.
  • implementation method 1 and implementation method are combined in three phases, you can first use implementation method 1 to determine one or more sidelink resources from candidate sidelink resources. If the determined sidelink resource is one, the sidelink resource is the target sidelink resource. There are multiple sidelink resources, and then the implementation method 3 is used to further determine the target sidelink resources from the determined sidelink resources. Alternatively, you can also use implementation method three to determine one or more sidelink resources from the candidate sidelink resources. If the determined sidelink resource is one, the sidelink resource is the target sidelink resource. If the determined sidelink resource is multiple, then use it again. Implementation method one further determines the target sidelink resource from the determined sidelink resources.
  • implementation method 4 and implementation method 5 you can first use implementation method 4 to determine one or more sidelink resources from the candidate sidelink resources. If the determined sidelink resource is one, the sidelink resource is the target sidelink resource. There are multiple sidelink resources, and then use implementation method 5 to further determine the target sidelink resources from the determined sidelink resources. Alternatively, you can also use implementation method five to determine one or more sidelink resources from the candidate sidelink resources. If the determined sidelink resource is one, the sidelink resource is the target sidelink resource. If the determined sidelink resource is multiple, then use it again. Implementation method four further determines the target sidelink resource from the determined sidelink resources.
  • the target sidelink resource that simultaneously meets multiple requirements, such as simultaneously satisfying waveform requirements, subcarrier spacing requirements, synchronization source requirements, and so on.
  • step 203 reference may be made to the implementation method on the terminal side, and no repeated description will be made.
  • the method for the access network device to determine the target sidelink resource can be consistent with the method for the terminal side to determine the sidelink resource.
  • Sidelink transmission mode can have two modes, for example, one is assisted scheduling mode, for example, it can be access network equipment assisted scheduling mode or control terminal assisted scheduling mode; one is terminal autonomous selection mode. It can be understood that the above two modes may also have other names, which are not limited in the embodiments of the present application.
  • the access network device or the control terminal may send downlink control information to the sending terminal, and the sending terminal performs sidelink transmission in the first resource among the target sidelink resources indicated in the downlink control information.
  • the terminal will sense the target sidelink resource and determine the first resource transmitted by the sidelink among the target sidelink resources. Perform sidelink transmission in the first resource of the target sidelink resource.
  • the terminal receives a signal on a sidelink resource among target sidelink resources and detects the signal energy of the signal.
  • the signal energy may refer to a reference signal received power (reference signal received power (RSRP)) and / or a received signal strength indicator (received signal strength indicator (RSSI).
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • the sidelink resource is considered to be a sidelink resource (that is, the first resource described above) that can be used to transmit the sidelink signal; if the perceived sidelink resource is The signal energy on the link is greater than or equal to (or greater than) the sensing threshold, then the Sidelink resource is considered to be a sidelink resource that cannot be used to transmit a sidelink signal.
  • the terminal may determine the first resource transmitted by the sidelink among the target sidelink resources by sensing the target sidelink resources.
  • the terminal and the access network device may further perform: the access network device or the control finger sends downlink control information to the sending terminal, so
  • the downlink control information is used to indicate that the sending terminal is a first resource that can be used for sidelink transmission among the target sidelink resources, and the sending terminal is the sender of the sidelink data.
  • the sending terminal receives downlink control information.
  • the sending terminal performs sidelink transmission in the first resource.
  • the sending terminal may also send side link control information to the receiving terminal.
  • the terminal may further perform the following:
  • the sending terminal sends side link control information, where the side link control information is used to indicate the first sidelink resource that can be used for sidelink transmission.
  • a resource the sending terminal is a sender of the sidelink data.
  • the sending terminal sends sidelink data in the first resource.
  • the receiving terminal receives side link control information, and the receiving terminal is a receiver of the sidelink data.
  • the receiving terminal receives sidelink data in the first resource.
  • FIG. 3 shows a possible exemplary block diagram of a device involved in the embodiment of the present invention.
  • the device 300 may exist in the form of software, hardware, or It exists in the form of software and hardware, which is not limited in the embodiments of the present application.
  • the apparatus 300 may include a processing unit 302 and a communication unit 303.
  • the communication unit 303 may include a receiving unit and / or a sending unit.
  • the processing unit 302 is configured to control and manage the device 300.
  • the communication unit 303 is configured to support communication between the device 300 and other network entities.
  • the device 300 may further include a storage unit 301 for storing program code and data of the device 300.
  • the processing unit 302 may be a processor or a controller.
  • the processing unit 302 may be a general-purpose central processing unit (CPU), a general-purpose processor, digital signal processing (DSP), or an application-specific integrated circuit. circuits, ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in connection with the disclosure of the embodiments of the present invention.
  • the processor may also be a combination that realizes a computing function, for example, includes a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 303 may be a communication interface, a transceiver, or a transceiver circuit.
  • the communication interface is collectively referred to. In a specific implementation, the communication interface may include multiple interfaces.
  • the storage unit 301 may be a memory.
  • the apparatus 300 may be an access network device in any of the foregoing embodiments, or may be a chip in the access network device.
  • the processing unit 302 may be, for example, a processor
  • the communication unit may be, for example, a transceiver
  • the transceiver includes a radio frequency circuit.
  • the storage unit may be, for example, a memory.
  • the processing unit 302 may be, for example, a processor
  • the communication unit may be, for example, an input / output interface, a pin, or a circuit.
  • the processing unit 302 may execute computer-executing instructions stored in a storage unit.
  • the storage unit is a storage unit in the chip, such as a register, a cache, and the like.
  • the storage unit may also be an access network device located in the access network device.
  • Storage units external to the chip such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
  • the communication unit 303 includes a sending unit and a receiving unit: the sending unit is configured to send configuration information to the terminal, the configuration information configures candidate side-link resources; and the processing unit 302 is configured according to the activated bandwidth part of the BWP. Feature information to determine a target side link resource from the candidate side link resources.
  • the characteristic information of the target side link resource is the same as the characteristic information of the activated BWP, and the characteristic information includes subcarrier interval, cyclic prefix CP, waveform, or frequency domain resource information. At least one.
  • the characteristic information includes frequency domain resource information, and the frequency domain resource information of the target side link resource is different from the frequency domain resource information of the activated BWP.
  • the processing unit 302 is specifically configured to determine the target side link from the candidate side link resources according to the feature information of the activated BWP and the synchronization source of the terminal. Resources, the target side-link resources correspond to the synchronization source.
  • the terminal is configured with a correspondence relationship, which indicates that the target side link resource corresponds to the synchronization source.
  • the processing unit 302 is specifically configured to determine the target side link from the candidate side link resources according to the feature information of the activated BWP and the area identifier of the terminal. Resources, and the target side-link resource corresponds to the area identifier.
  • the terminal is configured with a correspondence relationship, which indicates that the target side link resource corresponds to the area identifier.
  • the activated BWP is an activated uplink BWP, an activated downlink BWP, an initial access uplink BWP, an initial access downlink BWP, a default uplink BWP, or a default downlink BWP.
  • the device 300 may be a terminal in any of the above embodiments, or may be a chip in the terminal.
  • the processing unit 302 may be, for example, a processor
  • the communication unit may be, for example, a transceiver
  • the transceiver includes a radio frequency circuit.
  • the storage unit may be, for example, a memory.
  • the processing unit 302 may be a processor, for example, and the communication unit may be an input / output interface, a pin, or a circuit.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit located outside the chip in the terminal, such as a ROM or other device that can store static information and instructions. Type of static storage device, RAM, etc.
  • the communication unit 303 includes a sending unit and a receiving unit: the receiving unit is configured to receive configuration information configured to configure candidate side link resources; and the processing unit 302 is configured to perform feature information of the BWP based on the activated bandwidth. , Determining a target side link resource from the candidate side link resources.
  • the characteristic information of the target side link resource is the same as the characteristic information of the activated BWP, and the characteristic information includes at least one of subcarrier interval, CP, waveform, or frequency domain resource information.
  • the characteristic information includes at least one of subcarrier interval, CP, waveform, or frequency domain resource information.
  • the characteristic information includes frequency domain resource information, and the frequency domain resource information of the target side link resource is different from the frequency domain resource information of the activated BWP.
  • the processing unit 302 is specifically configured to determine the target side link from the candidate side link resources according to the feature information of the activated BWP and the synchronization source of the terminal. Resources, the target side-link resources correspond to the synchronization source.
  • the terminal is configured with a correspondence relationship, which indicates that the target side link resource corresponds to the synchronization source.
  • the processing unit 302 is specifically configured to determine the target side link from the candidate side link resources according to the feature information of the activated BWP and the area identifier of the terminal. Resources, and the target side-link resource corresponds to the area identifier.
  • the terminal is configured with a correspondence relationship, which indicates that the target side link resource corresponds to the area identifier.
  • the activated BWP is an activated uplink BWP, an activated downlink BWP, an initial access uplink BWP, an initial access downlink BWP, a default uplink BWP, or a default downlink BWP.
  • the device shown in FIG. 3 is a terminal or an access network device
  • the specific beneficial effects of the resource determination method used for execution may be referred to the related description in the foregoing method embodiments, and details are not described herein again.
  • FIG. 4 shows a simplified schematic diagram of a possible design structure of a terminal involved in an embodiment of the present invention.
  • the terminal 400 includes a transmitter 401, a receiver 402, and a processor 403.
  • the processor 403 may also be a controller, which is shown as "controller / processor 403" in FIG. 4.
  • the terminal 400 may further include a modem processor 405, where the modem processor 405 may include an encoder 406, a modulator 407, a decoder 408, and a demodulator 409.
  • the transmitter 401 adjusts (eg, analog conversion, filtering, amplification, upconversion, etc.) the output samples and generates an uplink signal, which is transmitted to the access described in the above embodiment via an antenna Network equipment.
  • the antenna receives the downlink signal transmitted by the access network device in the above embodiment.
  • the receiver 402 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 406 receives service data and signaling messages to be transmitted on the uplink, and processes (e.g., formats, encodes, and interleaves) the service data and signaling messages.
  • the modulator 407 further processes (e.g., symbol maps and modulates) the encoded service data and signaling messages and provides output samples.
  • a demodulator 409 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 408 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages sent to the terminal 400.
  • the encoder 406, the modulator 407, the demodulator 409, and the decoder 408 may be implemented by a synthesized modem processor 405. These units process according to the radio access technology used by the radio access network. It should be noted that when the terminal 400 does not include the modem processor 405, the above functions of the modem processor 405 may also be performed by the processor 403.
  • the processor 403 controls and manages the terminal 400 and is configured to execute the processing procedure performed by the terminal in the foregoing embodiment of the present invention.
  • the processor 403 is configured to execute a processing process involving a terminal and / or other processes of the technical solution described in this application in the resource determination method of any embodiment of the present application.
  • the terminal 400 may further include a memory 404, and the memory 404 is configured to store program code and data for the terminal 400.
  • FIG. 5 shows a possible structural diagram of an access network device according to an embodiment of the present invention.
  • the access network device 500 includes a processor 502 and a communication interface 504.
  • the processor 502 may also be a controller, which is shown as “controller / processor 502” in FIG. 5.
  • the communication interface 504 is configured to support communication between an access network device and a terminal.
  • the access network device 500 may further include a transmitter / receiver 501.
  • the transmitter / receiver 501 is configured to support radio communication between an access network device and a terminal in the foregoing embodiment.
  • the processor 502 may perform various functions for communicating with a terminal.
  • the uplink signal from the terminal is received via the antenna, demodulated by the receiver 501 (for example, demodulating high-frequency signals into baseband signals), and further processed by the processor 502 to restore the services sent by the terminal Data and signaling information.
  • service data and signaling messages are processed by the processor 502 and modulated by the transmitter 501 (for example, modulating a baseband signal into a high-frequency signal) to generate a downlink signal and transmitted to the terminal via an antenna .
  • the above-mentioned demodulation or modulation function may also be completed by the processor 502.
  • the processor 502 is further configured to execute a processing process involving an access network device and / or other processes of the technical solution described in this application in any of the resource determination methods in the embodiments of the present application.
  • the access network device 500 may further include a memory 503, and the memory 503 is configured to store program codes and data of the access network device 500.
  • FIG. 5 only shows a simplified design of the access network device 500.
  • the access network device 500 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all access network devices that can implement the embodiments of the present invention are in the present invention. Within the scope of protection of the embodiments.
  • At least one (a, b) of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, or c can be a single or a Multiple.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like including one or more available medium integration.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (Solid State Disk)).
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a DVD
  • a semiconductor medium for example, a solid state disk (Solid State Disk)
  • Various illustrative logic units and circuits described in the embodiments of the present application may be implemented by a general-purpose processor, a digital signal processor, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices. Discrete gate or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor. Alternatively, the general-purpose processor may also be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • a software unit may be stored in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium in the art.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium may be integral to the processor.
  • the processor and the storage medium may be provided in an ASIC, and the ASIC may be provided in a terminal. Alternatively, the processor and the storage medium may also be provided in different components in the terminal.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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

Abstract

La présente invention concerne un procédé et un appareil de détermination de ressources. Le procédé comprend les étapes suivantes : un terminal reçoit des informations de configuration dans lesquelles des ressources de liaison latérale candidates sont configurées ; et le terminal détermine une ressource de liaison latérale cible parmi les ressources de liaison latérale candidates, d'après des informations caractéristiques d'une partie de largeur de bande (BWP) activée. La solution décrite dans l'invention permet à un terminal de déterminer une ressource de liaison latérale cible parmi des ressources de liaison latérale candidates, d'après des informations caractéristiques d'une BWP activée. La ressource de liaison latérale cible peut être utilisée comme une ressource de liaison latérale activée, pour une communication entre des terminaux.
PCT/CN2019/099853 2018-09-28 2019-08-08 Procédé et appareil de détermination de ressources WO2020063130A1 (fr)

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