WO2023123123A1 - 一种频域资源确定方法、装置及存储介质 - Google Patents

一种频域资源确定方法、装置及存储介质 Download PDF

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Publication number
WO2023123123A1
WO2023123123A1 PCT/CN2021/142694 CN2021142694W WO2023123123A1 WO 2023123123 A1 WO2023123123 A1 WO 2023123123A1 CN 2021142694 W CN2021142694 W CN 2021142694W WO 2023123123 A1 WO2023123123 A1 WO 2023123123A1
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Prior art keywords
frequency domain
resource
control
sets
resources
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Ceased
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PCT/CN2021/142694
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English (en)
French (fr)
Inventor
李明菊
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to US18/724,550 priority Critical patent/US20250063554A1/en
Priority to PCT/CN2021/142694 priority patent/WO2023123123A1/zh
Priority to EP21969491.6A priority patent/EP4459904A4/en
Priority to JP2024539412A priority patent/JP7692535B2/ja
Priority to CN202180004824.4A priority patent/CN114556858B/zh
Priority to KR1020247024469A priority patent/KR20240125647A/ko
Publication of WO2023123123A1 publication Critical patent/WO2023123123A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a method, device and storage medium for determining frequency domain resources.
  • New Radio for example, when the communication frequency band is in the frequency range 2 (frequency range 2, FR2), due to the fast attenuation of high-frequency channels, in order to ensure coverage, it is necessary to use beam-based transmission and take over.
  • a network device such as a base station
  • TRP Transmission Reception Point
  • multiple TRPs can be used to provide services for the terminal, including using multiple TRPs to send the terminal a physical downlink control channel (physical downlink control channel, PDCCH).
  • PDCCH Physical downlink control channel
  • two control resource sets (Control Resource Set, CORESET) can be configured, and a TCI state (state) corresponding to the CORESET can be configured.
  • Each CORESET is correspondingly configured with a TCI state, and a search space set (Search Space set, SS set) is respectively associated with two CORESETs. That is, two SS sets with a link relationship are configured, associated with different CORESETs and corresponding to different TCI states.
  • the two SS sets with a link relationship can be understood as two PDCCH candidates with the same PDCCH candidate resource index (candidate index) in the two SS sets are used to send a downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • the frequency domain resource indication information indicates the position of the frequency domain resources within a specified bandwidth, as follows use Indicates the specified bandwidth.
  • the DCI format carried by the PDCCH is DCI format 1_0
  • the bandwidth corresponding to the frequency domain resources of the scheduled PDSCH is the bandwidth of CORESET#0.
  • Multiple TRPs are currently supported for repeated transmission of the PDCCH (Multi-TRP PDCCH repetition).
  • Multi-TRP PDCCH repetition if the frequency domain resources of the two CORESETs associated with the SS sets corresponding to the two PDCCH candidates are different, Which CORESET shall prevail, ie How to determine it is a problem that needs to be solved.
  • the present disclosure provides a method, device and storage medium for determining frequency domain resources.
  • a method for determining frequency domain resources is provided, which is applied to a terminal, including:
  • the at least two PDCCH candidate resources have a one-to-one correspondence with at least two search space sets with a link relationship, and the at least two PDCCH candidate resources are used to carry downlink Control information DCI, where the DCI includes frequency-domain resource allocation information, where the frequency-domain resource allocation information is used to indicate the position of frequency-domain resources within a specified bandwidth, and the specified bandwidth includes at least one resource block occupied by a control resource set; Determine frequency domain resources used for transmitting a Physical Downlink Shared Channel (PDSCH) based on the frequency domain resource allocation information.
  • PDSCH Physical Downlink Shared Channel
  • the at least one control resource set is determined based on at least two control resource sets respectively associated with the at least two search space sets.
  • the at least one control resource set is a designated control resource set in the at least two control resource sets.
  • the specified set of control resources is one of the following:
  • the specified bandwidth in response to the fact that the specified control resource set is the at least two control resource sets, includes: all consecutive physical resource blocks from the first physical resource block to the second physical resource block, Wherein, the first physical resource block is the physical resource block occupying the lowest position in the frequency domain among all the physical resource blocks included in the at least two control resource sets, and the second physical resource block is the physical resource block of the at least two control resource sets Among all the physical resource blocks included in the set, the physical resource block occupying the highest position in the frequency domain is used.
  • the at least one control resource set is control resource set 0.
  • the format of the DCI is DCI 1_0.
  • a method for determining frequency domain resources is provided, which is applied to a network device, including:
  • the at least two PDCCH candidate resources have a one-to-one correspondence with at least two search space sets with a link relationship, and the at least two PDCCH candidate resources are used to carry the downlink Control information DCI, where the DCI includes frequency domain resource allocation information, the frequency domain resource allocation information is used to indicate the position of the frequency domain resource within a specified bandwidth, and the specified bandwidth includes at least one resource block occupied by a control resource set.
  • the at least one control resource set is determined based on at least two control resource sets respectively associated with the at least two search space sets.
  • the at least one control resource set is a designated control resource set in the at least two control resource sets.
  • the specified set of control resources is one of the following:
  • the specified bandwidth in response to the specified control resource set being the at least two control resource sets, includes: continuous physical resource blocks from the first physical resource block to the second physical resource block, wherein , the first physical resource block is the physical resource block that occupies the lowest position in the frequency domain among the physical resource blocks included in the at least two control resource sets, and the second physical resource block is the physical resource block included in the at least two control resource sets The physical resource block occupying the highest position in the frequency domain among the physical resource blocks.
  • the at least one control resource set is control resource set 0.
  • the format of the DCI is DCI 1_0.
  • an apparatus for determining frequency domain resources including:
  • a monitoring unit configured to monitor at least two physical downlink control channel PDCCH candidate resources, the at least two PDCCH candidate resources have a one-to-one correspondence with at least two search space sets having a link relationship, and the at least two PDCCH candidate resources
  • the resource is used to carry downlink control information DCI, and the DCI includes frequency-domain resource allocation information, and the frequency-domain resource allocation information is used to indicate the position of the frequency-domain resource within a specified bandwidth, and the specified bandwidth includes at least one set of control resources Occupied resource blocks;
  • a processing unit configured to determine frequency domain resources for transmitting a physical downlink shared channel PDSCH based on the frequency domain resource allocation information.
  • the at least one control resource set is determined based on at least two control resource sets respectively associated with the at least two search space sets.
  • the at least one control resource set is a designated control resource set in the at least two control resource sets.
  • the specified set of control resources is one of the following:
  • the specified bandwidth in response to the specified control resource set being the at least two control resource sets, includes: continuous physical resource blocks from the first physical resource block to the second physical resource block, wherein , the first physical resource block is the physical resource block that occupies the lowest position in the frequency domain among the physical resource blocks included in the at least two control resource sets, and the second physical resource block is the physical resource block included in the at least two control resource sets The physical resource block occupying the highest position in the frequency domain among the physical resource blocks.
  • the at least one control resource set is control resource set 0.
  • the format of the DCI is DCI 1_0.
  • an apparatus for determining frequency domain resources including:
  • a configuration unit configured to configure at least two physical downlink control channel PDCCH candidate resources, the at least two PDCCH candidate resources have a one-to-one correspondence with at least two search space sets with a link relationship, and the at least two PDCCH candidates
  • the resource is used to carry downlink control information DCI, and the DCI includes frequency-domain resource allocation information, and the frequency-domain resource allocation information is used to indicate the position of the frequency-domain resource within a specified bandwidth, and the specified bandwidth includes at least one set of control resources Occupied resource blocks.
  • the at least one control resource set is determined based on at least two control resource sets respectively associated with the at least two search space sets.
  • the at least one control resource set is a designated control resource set in the at least two control resource sets.
  • the specified set of control resources is one of the following:
  • the specified bandwidth in response to the specified control resource set being the at least two control resource sets, includes: continuous physical resource blocks from the first physical resource block to the second physical resource block, wherein , the first physical resource block is the physical resource block that occupies the lowest position in the frequency domain among the physical resource blocks included in the at least two control resource sets, and the second physical resource block is the physical resource block included in the at least two control resource sets The physical resource block occupying the highest position in the frequency domain among the physical resource blocks.
  • the at least one control resource set is control resource set 0.
  • the format of the DCI is DCI 1_0.
  • an apparatus for determining frequency domain resources including:
  • memory for storing processor-executable instructions
  • the processor is configured to: execute the first aspect or the method described in any one implementation manner of the first aspect.
  • an apparatus for determining frequency domain resources including:
  • processor ; memory for storing instructions executable by the processor;
  • the processor is configured to: execute the method described in the second aspect or any implementation manner of the second aspect.
  • a storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the terminal, the terminal can execute the first aspect or the first The method described in any one of the embodiments of the aspect.
  • a storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the network device, the network device can execute the second aspect or The method described in any one of the implementation manners of the second aspect.
  • the DCI carried by the at least two PDCCH candidate resources monitored by the terminal includes frequency domain resource allocation information
  • the frequency domain resource indication information indicates the frequency domain resources within the specified bandwidth. location
  • the specified bandwidth includes at least one resource block occupied by the control resource set, so that the terminal can determine the frequency domain resource for transmitting the PDSCH based on the frequency domain resource indication information. Therefore, the determination of PDSCH frequency domain resources is more versatile through the present disclosure.
  • the frequency domain resources of the control resource sets corresponding to the two PDCCH candidate resources used for PDCCH repetition are different, the frequency domain resources used to transmit PDSCH can also be specified. domain resources to improve transmission performance.
  • Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.
  • Fig. 2 is a flowchart showing a method for determining frequency domain resources according to an exemplary embodiment.
  • Fig. 3 shows a schematic diagram of PRBs occupied by frequency domain resources in an exemplary embodiment of the present disclosure.
  • Fig. 4 shows a schematic diagram of PRBs occupied by frequency domain resources in an exemplary embodiment of the present disclosure.
  • Fig. 5 is a flowchart showing a method for determining frequency domain resources according to an exemplary embodiment.
  • Fig. 6 is a block diagram of an apparatus for determining frequency domain resources according to an exemplary embodiment.
  • Fig. 7 is a block diagram of an apparatus for determining frequency domain resources according to an exemplary embodiment.
  • Fig. 8 is a block diagram of an apparatus for determining frequency domain resources according to an exemplary embodiment.
  • Fig. 9 is a block diagram showing an apparatus for determining frequency domain resources according to an exemplary embodiment.
  • the wireless communication system includes a terminal and a network device.
  • the terminal is connected to the network device through wireless resources, and sends and receives data.
  • the wireless communication system shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc. Not shown in Figure 1.
  • the embodiment of the present disclosure does not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system in the embodiment of the present disclosure is a network that provides a wireless communication function.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency-division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Multiple Access/Conflict Avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • single Carrier FDMA single Carrier FDMA
  • SC-FDMA carrier sense Multiple Access/Conflict Avoidance
  • Carrier Sense Multiple Access with Collision Avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G International: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network device may be: a base station, an evolved base station (evolved node B, eNB), a home base station, an access point (access point, AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be gNB in the NR system, or it can also be a component or a part of equipment that constitutes a base station wait.
  • the network device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • the network device may also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, no limitation is imposed on the specific technology and specific device form adopted by the network device.
  • terminals involved in this disclosure can also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
  • a device providing voice and/or data connectivity for example, a terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • examples of some terminals are: smart phones (Mobile Phone), pocket computers (Pocket Personal Computer, PPC), handheld computers, personal digital assistants (Personal Digital Assistant, PDA), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal.
  • a network device such as a base station
  • may use multiple TRPs multiple TRPs are also referred to as Multi-TRPs
  • Multi-TRPs multiple TRPs
  • a network device uses one TRP to send a PDCCH for a terminal
  • it configures a TCI state for receiving the PDCCH for the terminal.
  • the configuration method is: configure a CORESET such as CORESET#1 for the terminal, and configure the corresponding TCI state used by the terminal to be TCI#1 when receiving the PDCCH in the CORESET#1 resource.
  • search Space set Search Space set, SS set
  • the terminal uses the beam corresponding to TCI#1 for reception.
  • TCI state is also called TCI state.
  • data transmission is performed between a network device and a terminal based on a beam.
  • a network device such as a base station
  • multiple TRPs are also called Multi-TRPs
  • different TRPs use different beams for transmission.
  • multiple TRPs can send the same PDCCH.
  • SS set#1 is associated with SS set#2
  • PDCCH candidate#i in SS set#1 is associated with PDCCH candidate#i in SS set#2, that is, two PDCCH candidates with the same index are used to send the same DCI , that is, the DCI information sent by the two PDCCH candidates is the same.
  • Multi-TRP PDCCH repetition configure two CORESETs and configure the TCI status corresponding to the CORESETs.
  • Each CORESET is correspondingly configured with a TCI state, and two SS sets with a link relationship are configured, and different CORESETs are associated with different TCI states.
  • the two SS sets with a link relationship can be understood as two PDCCH candidates with the same PDCCH candidate index in the two SS sets are used to send the same DCI, that is, the information of the DCI sent by the two PDCCH candidates is the same.
  • the frequency domain resource indication information indicates the position of the frequency domain resources within a specified bandwidth, which is used below Indicates the specified bandwidth.
  • DCI format 1_0 when the DCI format carried by the PDCCH is DCI format 1_0, The size and position of CORESET#0 are the size and position of CORESET#0, and the number of bits occupied is: frequency domain resource allocation
  • the present disclosure provides a PDSCH frequency domain bandwidth method of determination.
  • the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource resource allocation information in the DCI carried by the CORESET corresponding to the two PDCCH candidates used for PDCCH repetition It is based on the bandwidth containing the resource block (Resource Block, RB) occupied by the specified CORESET, and then determines the specified bandwidth corresponding to the frequency domain resource allocation of PDSCH Specifies the bandwidth of the CORESET for this.
  • Resource Block, RB Resource Block
  • the PDSCH frequency domain bandwidth provided by this disclosure
  • the determination method of PDSCH frequency domain bandwidth makes More versatile, when the frequency domain resources of the CORESET corresponding to the two PDCCH candidates used for PDCCH repetition are different, the bandwidth used for scheduling PDSCH can also be specified In turn, the bandwidth of the terminal and network equipment when scheduling PDSCH Consistent understanding improves transmission performance.
  • Fig. 2 is a flowchart showing a method for determining frequency domain resources according to an exemplary embodiment. As shown in Fig. 2 , the method for determining frequency domain resources is used in a terminal and includes the following steps.
  • step S11 at least two PDCCH candidates are monitored, at least two PDCCH candidates have a one-to-one correspondence with at least two SS sets having a link relationship, and at least two PDCCH candidates are used to carry DCI, and DCI includes frequency domain resources Allocation information.
  • the frequency domain resource allocation information is used to indicate the position of the frequency domain resource within the specified bandwidth, and the specified bandwidth includes at least one RB occupied by the CORESET.
  • step S12 frequency domain resources for transmitting the PDSCH are determined based on frequency domain resource allocation information.
  • At least two PDCCH candidates are used to carry DCI, which can be understood as sending DCI based on at least two PDCCH candidates.
  • the information included in the DCI sent by at least two PDCCH candidates is the same, and it can also be understood that the DCI sent by at least two PDCCH candidates is the same DCI.
  • the format of the DCI sent by at least two PDCCH candidates may be DCI format 1_0.
  • At least two PDCCH candidates monitored by the terminal have the same index (index).
  • the at least two PDCCH candidates monitored in this disclosure can be understood as the corresponding PDCCH candidates in the Multi-TRP PDCCH repetition scenario.
  • the typical value of the number of PDCCH candidates among the at least two PDCCH candidates monitored by the terminal in the present disclosure is two.
  • the terminal monitors two PDCCH candidates, and the two PDCCH candidates correspond to two SS sets with a link relationship, and the indexes of the two PDCCH candidates are the same and are used to send a same DCI.
  • the DCI includes frequency-domain resource allocation information, and the frequency-domain resource allocation information is used to indicate the position of the frequency-domain resource within the specified bandwidth, and the specified bandwidth includes at least one RB occupied by the CORESET.
  • the two SS sets with a link relationship can be understood as two PDCCH candidates with the same PDCCH candidate index in the two SS sets are used to send the same DCI.
  • the terminal when it determines frequency domain resources for transmitting PDSCH based on the frequency domain resource allocation information, it may map the frequency domain resources indicated by the frequency domain resource allocation information to specified RBs included in the specified bandwidth, and determine the specified RBs as Frequency domain resources used to transmit PDSCH.
  • the specified bandwidth includes at least one RB occupied by the CORESET.
  • the DCI carried by at least two PDCCH candidates monitored by the terminal includes frequency domain resource allocation information
  • the frequency domain resource indication information is used to indicate the position of the frequency domain resource within the specified bandwidth
  • the specified bandwidth includes at least one CORESET
  • the occupied RBs enable the terminal to determine frequency domain resources for transmitting the PDSCH based on the frequency domain resource indication information. Therefore, the determination of the PDSCH frequency domain resources is more versatile through the present disclosure, and when the frequency domain resources of the CORESETs corresponding to the two PDCCH candidates used for PDCCH repetition are different, the frequency domain resources used to transmit the PDSCH can also be specified. Improve transfer performance.
  • Embodiments of the present disclosure hereinafter describe a manner of determining at least one CORESET included in a specified bandwidth corresponding to a frequency domain resource indicated by the frequency domain resource allocation information.
  • At least one CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information is determined based on at least two CORESETs respectively associated with at least two SS sets.
  • the at least two SS sets have a link relationship.
  • the at least two SS sets with a link relationship have a one-to-one correspondence with at least two PDCCH candidates monitored by the terminal.
  • At least one CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information is a specified CORESET among the at least two CORESETs respectively associated with at least two SS sets having a link relationship.
  • the specified CORESET is one of the following:
  • the CORESET identifies the smallest CORESET.
  • the specified SS set is the SS set with the smallest SS set identifier among at least two SS sets with a link relationship.
  • PRB Physical Resource Block
  • the designated PRB is the PRB with the lowest PRB number.
  • the lowest number of the PRB is the PRB with the lowest number among the PRBs contained in each CORESET of at least two CORESETs associated with at least two SS sets with a link relationship.
  • the at least two CORESETs may be CORESET#0 and CORESET#1, wherein among the PRBs occupied by CORESET#0, the PRB with the lowest frequency domain position is PRB#i; among the PRBs occupied by CORESET#1, the frequency domain position is the lowest
  • the PRB is PRB#j.
  • the designated CORESET is CORESET#0; otherwise, the designated CORESET is CORESET#1.
  • the specified bandwidth corresponding to the frequency domain resources indicated by the frequency domain resource allocation information includes at least two SS sets having a link relationship All PRBs occupied by at least two CORESETs associated with each set. It can also be understood that the designated bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information includes consecutive PRBs from the first PRB to the second PRB.
  • the first PRB is the PRB occupying the lowest position in the frequency domain among the PRBs included in the at least two CORESETs
  • the second PRB is the PRB occupying the highest position in the frequency domain among the PRBs included in the at least two CORESETs.
  • the continuous PRBs from the first PRB to the second PRB are those with a link relationship PRBs occupied by at least two CORESETs associated with at least two SS sets respectively.
  • Fig. 3 shows a schematic diagram of PRBs occupied by frequency domain resources in an exemplary embodiment of the present disclosure. Referring to FIG. 3 , consecutive PRBs from the first PRB to the second PRB are bandwidths occupied by frequency domain resources used to transmit the PDSCH.
  • the continuous PRBs from the first PRB to the second PRB are at least The PRBs occupied by at least two CORESETs associated with two SS sets respectively, and the interval PRBs between PRBs occupied by at least two CORESETs respectively associated with at least two SS sets having a link relationship.
  • Fig. 4 shows a schematic diagram of PRBs occupied by frequency domain resources in an exemplary embodiment of the present disclosure. Referring to FIG. 4 , the continuous PRBs from the first PRB to the second PRB including the interval PRB are bandwidths occupied by frequency domain resources used to transmit the PDSCH.
  • At least one CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information is CORESET0.
  • the CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information has nothing to do with the at least two CORESETs respectively associated with the at least two SS sets having a link relationship.
  • frequency domain resource determination method provided above in the present disclosure is applicable to non-interleaving-based virtual resource block to physical resource block (VRB-to-PRB) mapping.
  • the frequency domain bandwidth used to transmit PDSCH can be the frequency domain bandwidth corresponding to CORESET#0, or it can be Specified bandwidth determined based on at least two CORESETs respectively associated with at least two SS sets.
  • the frequency domain resources of the CORESETs corresponding to the two PDCCH candidates used for the PDCCH repetition may be the same or different.
  • the terminal when the terminal performs PDCCH repetition, it clarifies the bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource indication information carried in the DCI, and determines the frequency domain resource used to transmit the PDSCH. Therefore, the determination of the PDSCH frequency domain resources is more versatile through the present disclosure, and when the frequency domain resources of the CORESETs corresponding to the two PDCCH candidates used for PDCCH repetition are different, the frequency domain resources used to transmit the PDSCH can also be specified. Improve transfer performance.
  • the embodiment of the present disclosure also provides a method for determining frequency domain resources applied to a network device.
  • Fig. 5 is a flowchart showing a method for determining frequency domain resources according to an exemplary embodiment. Wherein, the method for determining frequency domain resources may be implemented alone, or may be implemented together with other embodiments of the present disclosure. As shown in Fig. 5, the method for determining frequency domain resources is used in network equipment, and includes the following steps.
  • step S21 at least two PDCCH candidates are configured, at least two PDCCH candidates have a one-to-one correspondence with at least two SS sets having a link relationship, and at least two PDCCH candidates are used to carry DCI, and the DCI includes frequency domain resources Allocation information.
  • the frequency domain resource allocation information is used to indicate the position of the frequency domain resource within the specified bandwidth, and the specified bandwidth includes at least one RB occupied by the CORESET.
  • At least two PDCCH candidates are used to carry DCI, which can be understood as sending DCI based on at least two PDCCH candidates.
  • the information included in the DCI sent by at least two PDCCH candidates is the same, and it can also be understood that the DCI sent by at least two PDCCH candidates is the same DCI.
  • the format of the DCI sent by at least two PDCCH candidates may be DCI format 1_0.
  • At least two PDCCH candidates configured by the network device have the same index.
  • the typical value of the number of PDCCH candidates in the at least two PDCCH candidates configured by the network device in the present disclosure is two.
  • two PDCCH candidates configured by the network device correspond to two SS sets with a link relationship, and the indexes of the two PDCCH candidates are the same and are used to send the same DCI.
  • the DCI includes frequency-domain resource allocation information, and the frequency-domain resource allocation information is used to indicate the position of the frequency-domain resource within the specified bandwidth, and the specified bandwidth includes at least one RB occupied by the CORESET.
  • the two SS sets with a link relationship can be understood as two PDCCH candidates with the same PDCCH candidate index in the two SS sets are used to send the same DCI.
  • the DCI carried by at least two PDCCH candidates configured by the network device includes frequency domain resource allocation information
  • the frequency domain resource indication information is used to indicate the position of the frequency domain resource within the specified bandwidth
  • the specified bandwidth includes at least one
  • the RBs occupied by the CORESET enable the terminal to determine frequency domain resources for transmitting the PDSCH based on the frequency domain resource indication information. Therefore, the determination of the PDSCH frequency domain resources is more versatile through the present disclosure, and when the frequency domain resources of the CORESETs corresponding to the two PDCCH candidates used for PDCCH repetition are different, the frequency domain resources used to transmit the PDSCH can also be specified.
  • the terminal and the network equipment have the same understanding of the determined frequency domain resources of the PDSCH, thereby improving the transmission performance.
  • Embodiments of the present disclosure hereinafter describe a manner of determining at least one CORESET included in a specified bandwidth corresponding to a frequency domain resource indicated by the frequency domain resource allocation information.
  • At least one CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information is determined based on at least two CORESETs respectively associated with at least two SS sets.
  • the at least two SS sets have a link relationship.
  • the at least two SS sets with a link relationship have a one-to-one correspondence with at least two PDCCH candidates configured by the network device.
  • At least one CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information is a specified CORESET among the at least two CORESETs respectively associated with at least two SS sets having a link relationship.
  • the specified CORESET is one of the following:
  • the CORESET identifies the smallest CORESET.
  • the specified SS set is the SS set with the smallest SS set identifier among at least two SS sets with a link relationship.
  • PRB Physical Resource Block
  • the designated PRB is the PRB with the lowest PRB number.
  • the lowest number of the PRB is the PRB with the lowest number among the PRBs contained in each CORESET of at least two CORESETs associated with at least two SS sets with a link relationship.
  • the at least two CORESETs may be CORESET#0 and CORESET#1, wherein among the PRBs occupied by CORESET#0, the PRB with the lowest frequency domain position is PRB#i; among the PRBs occupied by CORESET#1, the frequency domain position is the lowest
  • the PRB is PRB#j.
  • the designated CORESET is CORESET#0; otherwise, the designated CORESET is CORESET#1.
  • the specified bandwidth corresponding to the frequency domain resources indicated by the frequency domain resource allocation information includes at least two SS sets having a link relationship All PRBs occupied by at least two CORESETs associated with each set. It can also be understood that the designated bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information includes consecutive PRBs from the first PRB to the second PRB.
  • the first PRB is the PRB occupying the lowest position in the frequency domain among the PRBs included in the at least two CORESETs
  • the second PRB is the PRB occupying the highest position in the frequency domain among the PRBs included in the at least two CORESETs.
  • the continuous PRBs from the first PRB to the second PRB are those with a link relationship PRBs occupied by at least two CORESETs associated with at least two SS sets respectively.
  • the continuous PRBs from the first PRB to the second PRB are at least The PRBs occupied by at least two CORESETs associated with two SS sets respectively, and the interval PRBs between PRBs occupied by at least two CORESETs respectively associated with at least two SS sets having a link relationship.
  • At least one CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information is CORESET0.
  • the CORESET included in the specified bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource allocation information has nothing to do with the at least two CORESETs respectively associated with the at least two SS sets having a link relationship.
  • frequency domain resource determination method provided above in the present disclosure is applicable to non-interleaving-based virtual resource block to physical resource block (VRB-to-PRB) mapping.
  • the PDCCH carries DCI format 1_0
  • the frequency domain bandwidth used to transmit the PDSCH can be the frequency domain bandwidth corresponding to CORESET#0, or it can be based on the frequency domain bandwidth corresponding to CORESET#0 Specified bandwidth determined by at least two CORESETs associated with at least two SS sets respectively.
  • the frequency domain resources of the CORESETs corresponding to the two PDCCH candidates used for the PDCCH repetition may be the same or different.
  • the frequency domain resource determination method provided in the present disclosure clarifies the bandwidth corresponding to the frequency domain resource indicated by the frequency domain resource indication information carried in the DCI in the PDCCH repetition scenario, and determines the frequency domain resource used for transmitting the PDSCH. Therefore, the determination of the PDSCH frequency domain resources is more versatile through the present disclosure, and when the frequency domain resources of the CORESETs corresponding to the two PDCCH candidates used for PDCCH repetition are different, the frequency domain resources used to transmit the PDSCH can also be specified. Improve transfer performance.
  • the method for determining frequency domain resources applied to network devices in the embodiments of the present disclosure is similar to the method for determining frequency domain resources applied to terminals. Therefore, for the method for determining frequency domain resources applied to network devices If the description is not detailed enough, you can refer to the relevant content of the method for determining frequency domain resources applied to the terminal, and will not be described in detail here.
  • the method for determining frequency domain resources is applicable to a process in which a terminal interacts with a network device to determine frequency domain resources.
  • the terminal and the network device For the interaction between the terminal and the network device to implement the frequency domain resource determination process, the terminal and the network device have the relevant functions in the foregoing embodiments.
  • an embodiment of the present disclosure further provides an apparatus for determining frequency domain resources.
  • the apparatus for determining frequency domain resources includes corresponding hardware structures and/or software modules for performing various functions.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 6 is a block diagram of an apparatus for determining frequency domain resources according to an exemplary embodiment.
  • the frequency domain resource determination apparatus 100 includes a monitoring unit 101 and a processing unit 102 .
  • the frequency domain resource determining apparatus 100 may be provided as the terminal involved in the above embodiments.
  • the monitoring unit 101 is configured to monitor at least two PDCCH candidates, at least two PDCCH candidates have a one-to-one correspondence with at least two SS sets having a link relationship, and at least two PDCCH candidates are used to carry downlink control information DCI, in DCI It includes frequency-domain resource allocation information, and the frequency-domain resource allocation information is used to indicate the position of the frequency-domain resource within the specified bandwidth, and the specified bandwidth includes at least one RB occupied by the CORESET.
  • the processing unit 102 is configured to determine frequency domain resources for transmitting the PDSCH based on frequency domain resource allocation information.
  • At least one CORESET is determined based on at least two CORESETs respectively associated with at least two SS sets.
  • At least one CORESET is a specified CORESET among at least two CORESETs.
  • the specified CORESET is one of the following:
  • the CORESET with the smallest CORESET identifier among at least two CORESETs specify the CORESET corresponding to the SS set, and specify the SS set as the SS set with the smallest SS set identifier among at least two SS sets; specify the CORESET corresponding to the PRB with the lowest occupied frequency domain position among the PRBs,
  • the designated PRB is the PRB with the lowest PRB number among the PRBs contained in each CORESET in at least two CORESETs; at least two CORESETs.
  • the specified bandwidth in response to the specified CORESET being at least two CORESETs, includes: continuous PRBs from the first PRB to the second PRB, where the first PRB is the frequency domain occupied by the PRBs contained in at least two CORESETs The PRB with the lowest position, the second PRB is the PRB with the highest occupied frequency domain position among the PRBs included in at least two CORESETs.
  • At least one CORESET is CORESET0.
  • the format of the DCI is DCI 1_0.
  • Fig. 7 is a block diagram of an apparatus for determining frequency domain resources according to an exemplary embodiment.
  • the apparatus 200 for determining frequency domain resources includes a configuration unit 201 .
  • the frequency domain resource determining apparatus 200 may be provided as the network device involved in the above embodiments.
  • the configuration unit 201 is configured to configure at least two PDCCH candidates, at least two PDCCH candidates have a one-to-one correspondence with at least two SS sets having a link relationship, and at least two PDCCH candidates are used to carry downlink control information DCI, in the DCI It includes frequency-domain resource allocation information, and the frequency-domain resource allocation information is used to indicate the position of the frequency-domain resource within the specified bandwidth, and the specified bandwidth includes at least one RB occupied by the CORESET.
  • At least one CORESET is determined based on at least two CORESETs respectively associated with at least two SS sets.
  • At least one CORESET is a specified CORESET among at least two CORESETs.
  • the specified CORESET is one of the following:
  • the CORESET with the smallest CORESET identifier among at least two CORESETs specify the CORESET corresponding to the SS set, and specify the SS set as the SS set with the smallest SS set identifier among at least two SS sets; specify the CORESET corresponding to the PRB with the lowest occupied frequency domain position among the PRBs,
  • the designated PRB is the PRB with the lowest PRB number among the PRBs contained in each CORESET in at least two CORESETs; at least two CORESETs.
  • the specified bandwidth in response to the specified CORESET being at least two CORESETs, includes: continuous PRBs from the first PRB to the second PRB, where the first PRB is the frequency domain occupied by the PRBs contained in at least two CORESETs The PRB with the lowest position, the second PRB is the PRB with the highest occupied frequency domain position among the PRBs included in at least two CORESETs.
  • At least one CORESET is CORESET0.
  • the format of the DCI is DCI 1_0.
  • Fig. 8 is a block diagram of an apparatus 300 for determining frequency domain resources according to an exemplary embodiment.
  • the apparatus 300 may be provided as a terminal.
  • the apparatus 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and communication component 316 .
  • the processing component 302 generally controls the overall operations of the device 300, such as those associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 302 may include one or more modules that facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302 .
  • the memory 304 is configured to store various types of data to support operations at the device 300 . Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power component 306 provides power to various components of device 300 .
  • Power components 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 300 .
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), which is configured to receive external audio signals when the device 300 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 304 or sent via communication component 316 .
  • the audio component 310 also includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 314 includes one or more sensors for providing various aspects of status assessment for device 300 .
  • the sensor component 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and the sensor component 314 can also detect a change in the position of the device 300 or a component of the device 300 , the presence or absence of user contact with the device 300 , the device 300 orientation or acceleration/deceleration and the temperature change of the device 300 .
  • the sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 314 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the apparatus 300 and other devices.
  • the device 300 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wideband
  • Bluetooth Bluetooth
  • apparatus 300 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • non-transitory computer-readable storage medium including instructions, such as the memory 304 including instructions, which can be executed by the processor 320 of the device 300 to implement the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • Fig. 9 is a block diagram of an apparatus 400 for determining frequency domain resources according to an exemplary embodiment.
  • apparatus 400 may be provided as a network device.
  • apparatus 400 includes processing component 422, which further includes one or more processors, and memory resources represented by memory 432 for storing instructions executable by processing component 422, such as application programs.
  • the application program stored in memory 432 may include one or more modules each corresponding to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above method.
  • Device 400 may also include a power component 426 configured to perform power management of device 400 , a wired or wireless network interface 450 configured to connect device 400 to a network, and an input-output (I/O) interface 458 .
  • the device 400 can operate based on an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • non-transitory computer-readable storage medium including instructions, such as the memory 432 including instructions, which can be executed by the processing component 422 of the apparatus 400 to implement the above method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • “plurality” in the present disclosure refers to two or more, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • the singular forms “a”, “said” and “the” are also intended to include the plural unless the context clearly dictates otherwise.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be called second information, and similarly, second information may also be called first information.

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Abstract

本公开是关于一种频域资源确定方法、装置及存储介质。一种频域资源确定方法，应用于终端，包括：监测至少两个PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块；基于所述频域资源分配信息确定用于传输PDSCH的频域资源。通过本公开能够明确用于传输PDSCH的频域资源，提高传输性能。

Description

一种频域资源确定方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种频域资源确定方法、装置及存储介质。
背景技术
在新无线技术(New Radio，NR)中，例如通信频段在频段2(frequency range 2，FR2)时，由于高频信道衰减较快，为了保证覆盖范围，需要使用基于波束(beam)的发送和接收。当网络设备(例如基站)有多个传输接收点(Transmission Reception Point，TRP)时，可以使用多个TRP为终端提供服务，包括使用多个TRP为终端发送物理下行控制信道(physical downlink control channel，PDCCH)。
相关技术中，使用多个TRP进行PDCCH传输时，可以配置两个控制资源集(Control Resource Set，CORESET)，并配置CORESET对应的TCI状态(state)。每个CORESET对应配置一个TCI状态，并分别配置搜索空间集(Search Space set，SS set)与两个CORESET分别关联。即配置了两个具有链接关系的SS set，关联不同的CORESET和对应不同的TCI状态。其中，具有链接关系的两个SS set可以理解为是两个SS set中PDCCH候选资源索引(candidate index)一样的两个PDCCH candidate用于发送一个下行控制信息(Downlink Control Information，DCI)。
其中，使用多个TRP进行PDCCH传输时需要指示物理下行共享信道(physical downlink shared channel，PDSCH)的频域资源，而频域资源指示信息是指示频域资源在某个指定带宽内的位置，以下用
Figure PCTCN2021142694-appb-000001
表示指定带宽。相关技术中，PDCCH携带的DCI格式为DCI format 1_0时，调度的PDSCH的频域资源对应的带宽为CORESET#0的带宽。然而，目前支持使用多个TRP进行PDCCH的重复传输(Multi-TRP PDCCH repetition)。在Multi-TRP PDCCH repetition中，如果两个PDCCH candidate对应的SS set关联的两个CORESET的频域资源不一样，
Figure PCTCN2021142694-appb-000002
是以哪个CORESET为准，即
Figure PCTCN2021142694-appb-000003
如何确定，是需要解决的问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种频域资源确定方法、装置及存储介质。
根据本公开实施例的第一方面，提供一种频域资源确定方法，应用于终端，包括：
监测至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选 资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块；基于所述频域资源分配信息确定用于传输物理下行共享信道PDSCH的频域资源。
一种实施方式中，所述至少一个控制资源集基于与所述至少两个搜索空间集分别关联的至少两个控制资源集确定。
一种实施方式中，所述至少一个控制资源集为所述至少两个控制资源集中的指定控制资源集。
一种实施方式中，所述指定控制资源集为以下之一：
所述至少两个控制资源集中控制资源集标识最小的控制资源集；指定搜索空间集对应的控制资源集，所述指定搜索空间集为所述至少两个搜索空间集中搜索空间集标识最小的搜索空间集；指定物理资源块中占用频域位置最低的物理资源块对应的控制资源集，所述指定物理资源块为所述至少两个控制资源集中各个控制资源集包含的物理资源块中物理资源块编号最低的物理资源块；所述至少两个控制资源集。
一种实施方式中，响应于所述指定控制资源集为所述至少两个控制资源集，所述指定带宽包括：从第一物理资源块到第二物理资源块的所有连续的物理资源块，其中，所述第一物理资源块为所述至少两个控制资源集包含的所有物理资源块中占用频域位置最低的物理资源块，所述第二物理资源块为所述至少两个控制资源集包含的所有物理资源块中占用频域位置最高的物理资源块。
一种实施方式中，所述至少一个控制资源集为控制资源集0。
一种实施方式中，所述DCI的格式为DCI 1_0。
根据本公开实施例第二方面，提供一种频域资源确定方法，应用于网络设备，包括：
配置至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块。
一种实施方式中，所述至少一个控制资源集基于与所述至少两个搜索空间集分别关联的至少两个控制资源集确定。
一种实施方式中，所述至少一个控制资源集为所述至少两个控制资源集中的指定控制资源集。
一种实施方式中，所述指定控制资源集为以下之一：
所述至少两个控制资源集中控制资源集标识最小的控制资源集；指定搜索空间集对应的控制资源集，所述指定搜索空间集为所述至少两个搜索空间集中搜索空间集标识最小的搜索空间集；指定物理资源块中占用频域位置最低的物理资源块对应的控制资源集，所述指定物理资源块为所述至少两个控制资源集中各个控制资源集包含的物理资源块中物理资源块编号最低的物理资源块；所述至少两个控制资源集。
一种实施方式中，响应于所述指定控制资源集为所述至少两个控制资源集，所述指定带宽包括：从第一物理资源块到第二物理资源块的连续的物理资源块，其中，所述第一物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最低的物理资源块，所述第二物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最高的物理资源块。
一种实施方式中，所述至少一个控制资源集为控制资源集0。
一种实施方式中，所述DCI的格式为DCI 1_0。
根据本公开实施例第三方面，提供一种频域资源确定装置，包括：
监测单元，用于监测至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块；处理单元，用于基于所述频域资源分配信息确定用于传输物理下行共享信道PDSCH的频域资源。
一种实施方式中，所述至少一个控制资源集基于与所述至少两个搜索空间集分别关联的至少两个控制资源集确定。
一种实施方式中，所述至少一个控制资源集为所述至少两个控制资源集中的指定控制资源集。
一种实施方式中，所述指定控制资源集为以下之一：
所述至少两个控制资源集中控制资源集标识最小的控制资源集；指定搜索空间集对应的控制资源集，所述指定搜索空间集为所述至少两个搜索空间集中搜索空间集标识最小的搜索空间集；指定物理资源块中占用频域位置最低的物理资源块对应的控制资源集，所述指定物理资源块为所述至少两个控制资源集中各个控制资源集包含的物理资源块中物理资源块编号最低的物理资源块；所述至少两个控制资源集。
一种实施方式中，响应于所述指定控制资源集为所述至少两个控制资源集，所述指定 带宽包括：从第一物理资源块到第二物理资源块的连续的物理资源块，其中，所述第一物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最低的物理资源块，所述第二物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最高的物理资源块。
一种实施方式中，所述至少一个控制资源集为控制资源集0。
一种实施方式中，所述DCI的格式为DCI 1_0。
根据本公开实施例第四方面，提供一种频域资源确定装置，包括：
配置单元，用于配置至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块。
一种实施方式中，所述至少一个控制资源集基于与所述至少两个搜索空间集分别关联的至少两个控制资源集确定。
一种实施方式中，所述至少一个控制资源集为所述至少两个控制资源集中的指定控制资源集。
一种实施方式中，所述指定控制资源集为以下之一：
所述至少两个控制资源集中控制资源集标识最小的控制资源集；指定搜索空间集对应的控制资源集，所述指定搜索空间集为所述至少两个搜索空间集中搜索空间集标识最小的搜索空间集；指定物理资源块中占用频域位置最低的物理资源块对应的控制资源集，所述指定物理资源块为所述至少两个控制资源集中各个控制资源集包含的物理资源块中物理资源块编号最低的物理资源块；所述至少两个控制资源集。
一种实施方式中，响应于所述指定控制资源集为所述至少两个控制资源集，所述指定带宽包括：从第一物理资源块到第二物理资源块的连续的物理资源块，其中，所述第一物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最低的物理资源块，所述第二物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最高的物理资源块。
一种实施方式中，所述至少一个控制资源集为控制资源集0。
一种实施方式中，所述DCI的格式为DCI 1_0。
根据本公开实施例第五方面，提供一种频域资源确定装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面或者第一方面任意一种实施方式中所述的方法。
根据本公开实施例第六方面，提供一种频域资源确定装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第二方面或者第二方面任意一种实施方式中所述的方法。
根据本公开实施例第七方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行第一方面或者第一方面任意一种实施方式中所述的方法。
根据本公开实施例第八方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行第二方面或者第二方面任意一种实施方式中所述的方法。
本公开的实施例提供的技术方案可以包括以下有益效果：终端监测的至少两个PDCCH候选资源携带的DCI中包括频域资源分配信息，该频域资源指示信息指示频域资源在指定带宽内的位置，且该指定带宽包括至少一个控制资源集占用的资源块，使得终端可以基于该频域资源指示信息确定用于传输PDSCH的频域资源。故，通过本公开使得PDSCH的频域资源的确定更具有通用性，在用于PDCCH repetition的两个PDCCH候选资源对应的控制资源集的频域资源不同时，也能够明确用于传输PDSCH的频域资源，提高传输性能。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线通信系统示意图。
图2是根据一示例性实施例示出的一种频域资源确定方法的流程图。
图3示出了本公开一示例性实施例中频域资源占用的PRB示意图。
图4示出了本公开一示例性实施例中频域资源占用的PRB示意图。
图5是根据一示例性实施例示出的一种频域资源确定方法的流程图。
图6是根据一示例性实施例示出的一种频域资源确定装置框图。
图7是根据一示例性实施例示出的一种频域资源确定装置框图。
图8是根据一示例性实施例示出的一种用于频域资源确定的装置框图。
图9是根据一示例性实施例示出的一种用于频域资源确定的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。
本公开实施例提供的频域资源确定方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括终端和网络设备。终端通过无线资源与网络设备相连接，并进行数据的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数目和终端数目不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，eNB)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用 户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
本公开中网络设备与终端之间基于波束进行数据传输。基于波束进行数据传输过程中，网络设备(例如基站)可以使用多个TRP(多个TRP也称为Multi-TRP)为终端发送PDCCH。相关技术中，网络设备(例如基站)使用一个TRP为终端发送PDCCH时，为终端配置接收该PDCCH的TCI状态。例如，配置方法为：为终端配置一个CORESET比如CORESET#1，且配置终端接收该CORESET#1资源中的PDCCH时对应使用的TCI状态为TCI#1。并为终端配置一个搜索空间集(Search Space set，SS set)，与CORESET#1关联。终端在接收SS set中resource上的PDCCH时，就使用TCI#1对应的波束进行接收。目前每个SS set只能与一个CORESET关联，每个CORESET只配置一个TCI状态(TCI状态也称为TCI state)。
本公开中网络设备与终端之间基于波束进行数据传输。基于波束进行数据传输过程中，当网络设备(例如基站)使用多个TRP(多个TRP也称为Multi-TRP)为终端发送PDCCH时，不同的TRP使用不同的波束发送。其中，多个TRP可以发送相同的PDCCH。
为了实现多个TRP发送同样的PDCCH，目前有方法：配置两个CORESET，每个CORESET对应配置一个TCI状态，并分别配置SS set与两个CORESET分别关联。即配置了两个SS set，关联不同的CORESET和对应不同的TCI状态。其中，两个具有关联关系的SS set的PDCCH candidate之间也有关联关系。例如，SS set#1和SS set#2关联，则SS set#1中的PDCCH candidate#i与SS set#2的PDCCH candidate#i关联，即index相同的两个PDCCH candidate用于发送同一个DCI，即两个PDCCH candidate发送的DCI的信息相同。
其中，多个TRP发送同样的PDCCH的一种应用场景为Multi-TRP PDCCH repetition。Multi-TRP PDCCH repetition中，配置两个CORESET，并配置CORESET对应的TCI状态。每个CORESET对应配置一个TCI状态，并配置两个具有链接关系的SS set，关联不同的CORESET和对应不同的TCI状态。其中，具有链接关系的两个SS set可以理解为是两个SS set中PDCCH candidate index一样的两个PDCCH candidate用于发送同一个DCI，即两个PDCCH candidate发送的DCI的信息相同。
其中，使用多个TRP进行PDCCH传输时需要指示PDSCH的频域资源，而频域资源指示信息是指示频域资源在某个指定带宽内的位置，以下用
Figure PCTCN2021142694-appb-000004
表示指定带宽。相关技术中，在没有PDCCH repetition的情况下，PDCCH携带的DCI格式为DCI format 1_0时，
Figure PCTCN2021142694-appb-000005
的大小和位置为CORESET#0的大小和位置，占用的比特数为：频域资源分配
Figure PCTCN2021142694-appb-000006
然而，当Multi-TRP PDCCH repetition时，如果两个PDCCH candidate对应的SS set关联的两个CORESET的频域资源不一样时，那么
Figure PCTCN2021142694-appb-000007
是以哪个CORESET为准，是需要讨论的问题。
有鉴于此，本公开提供一种PDSCH频域带宽
Figure PCTCN2021142694-appb-000008
的确定方法。在该方法中，当终端进行PDCCH repetition时，在用于PDCCH repetition的两个PDCCH candidate对应的CORESET携带的DCI中的频域资源资源分配信息指示的频域资源对应的指定带宽
Figure PCTCN2021142694-appb-000009
为基于包含指定CORESET占用的资源块(Resource Block，RB)的带宽，进而确定PDSCH的频域资源分配对应的指定带宽
Figure PCTCN2021142694-appb-000010
为该指定CORESET的带宽。进而，通过本公开提供的PDSCH频域带宽
Figure PCTCN2021142694-appb-000011
的确定方法，使得PDSCH频域带宽
Figure PCTCN2021142694-appb-000012
更具有通用性，在用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源不同时，也能明确用于调度PDSCH时的带宽
Figure PCTCN2021142694-appb-000013
进而使得终端和网络设备对于调度PDSCH时的带宽
Figure PCTCN2021142694-appb-000014
理解一致，提高传输性能。
图2是根据一示例性实施例示出的一种频域资源确定方法的流程图，如图2所示，频域资源确定方法用于终端中，包括以下步骤。
在步骤S11中，监测至少两个PDCCH candidate，至少两个PDCCH candidate与具有链接关系的至少两个SS set具有一一对应关系，且至少两个PDCCH candidate用于携带DCI，DCI中包括频域资源分配信息，频域资源分配信息用于指示频域资源在指定带宽内的位置，指定带宽包括至少一个CORESET占用的RB。
在步骤S12中，基于频域资源分配信息确定用于传输PDSCH的频域资源。
本公开中，至少两个PDCCH candidate用于携带DCI可以理解为是基于至少两个PDCCH candidate发送DCI。其中，至少两个PDCCH candidate发送的DCI中包括的信息是相同的，也可以理解为是至少两个PDCCH candidate发送的DCI是一个相同的DCI。
其中，本公开中，至少两个PDCCH candidate发送的DCI的格式可以为DCI format 1_0。
本公开中，终端监测到的至少两个PDCCH candidate的索引(index)相同。
其中，本公开中监测到的至少两个PDCCH candidate可以理解为是在Multi-TRP  PDCCH repetition场景下对应的PDCCH candidate。
其中，本公开中终端监测的至少两个PDCCH candidate中PDCCH candidate数量的典型值为两个。
一示例中，Multi-TRP PDCCH repetition中，终端监测两个PDCCH candidate，这两个PDCCH candidate与具有链接关系的两个SS set一一对应，且两个PDCCH candidate的index相同且用于发送一个相同的DCI。该DCI中包括频域资源分配信息，该频域资源分配信息用于指示频域资源在指定带宽内的位置，指定带宽包括至少一个CORESET占用的RB。
其中，具有链接关系的两个SS set可以理解为是两个SS set中PDCCH candidate index一样的两个PDCCH candidate用于发送同一个DCI。
本公开中，终端基于频域资源分配信息确定用于传输PDSCH的频域资源时，可以将频域资源分配信息所指示的频域资源映射为指定带宽内包括的指定RB，将指定RB确定为用于传输PDSCH的频域资源。其中，指定带宽包括至少一个CORESET占用的RB。
本公开中，终端监测的至少两个PDCCH candidate携带的DCI中包括频域资源分配信息，该频域资源指示信息用于指示频域资源在指定带宽内的位置，且该指定带宽包括至少一个CORESET占用的RB，使得终端可以基于该频域资源指示信息确定用于传输PDSCH的频域资源。故，通过本公开使得PDSCH的频域资源的确定更具有通用性，在用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源不同时，也能明确用于传输PDSCH的频域资源，提高传输性能。
本公开实施例以下对频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET的确定方式进行说明。
本公开一种实施方式中，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET，基于与至少两个SS set分别关联的至少两个CORESET确定。其中，该至少两个SS set是具有链接关系的。该具有链接关系的至少两个SS set，与终端监测到的至少两个PDCCH candidate具有一一对应关系。
其中，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET为具有链接关系的至少两个SS set分别关联的至少两个CORESET中的指定CORESET。
本公开实施例中，该指定CORESET为以下之一：
A：具有链接关系的至少两个SS set分别关联的至少两个CORESET中，CORESET标识最小的CORESET。
B：指定SS set对应的CORESET。其中，指定SS set为具有链接关系的至少两个SS set 中SS set标识最小的SS set。
C：指定物理资源块(Physical Resource Block，PRB)中占用频域位置最低的PRB对应的CORESET。其中，该指定PRB为PRB编号最低的PRB。该PRB编号最低是具有链接关系的至少两个SS set分别关联的至少两个CORESET中各个CORESET包含的PRB中编号最低的PRB。
本公开中，至少两个CORESET可以为CORESET#0和CORESET#1，其中CORESET#0占用的PRB中，频域位置最低的PRB为PRB#i；CORESET#1占用的PRB中，频域位置最低的PRB为PRB#j。当PRB#i比PRB#j的频域更低时，指定CORESET为CORESET#0；否则，指定CORESET为CORESET#1。
D：具有链接关系的至少两个SS set分别关联的至少两个CORESET。
本公开中，响应于指定CORESET为具有链接关系的至少两个SS set分别关联的至少两个CORESET，频域资源分配信息所指示的频域资源对应的指定带宽包括具有链接关系的至少两个SS set分别关联的至少两个CORESET所占用的全部PRB。也可以理解为是，频域资源分配信息所指示的频域资源对应的指定带宽包括从第一PRB到第二PRB的连续的PRB。其中，第一PRB为至少两个CORESET包含的PRB中占用频域位置最低的PRB，第二PRB为至少两个CORESET包含的PRB中占用频域位置最高的PRB。
本公开中，一方面，响应于具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB连续或有重叠，从第一PRB到第二PRB的连续的PRB为具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB。图3示出了本公开一示例性实施例中频域资源占用的PRB示意图。参阅图3所示，从第一PRB到第二PRB的连续的PRB为用于传输PDSCH的频域资源所占用的带宽。
本公开中，另一方面，响应于具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB不连续，从第一PRB到第二PRB的连续的PRB为具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB，以及具有链接关系的至少两个SS set分别关联的至少两个CORESET占用PRB之间的间隔PRB。图4示出了本公开一示例性实施例中频域资源占用的PRB示意图。参阅图4所示，从第一PRB到第二PRB包括间隔PRB在内的连续的PRB为用于传输PDSCH的频域资源所占用的带宽。
本公开另一种实施方式中，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET为CORESET0。换言之，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的CORESET，与具有链接关系的至少两个SS set分别关联的至少两个CORESET无关。
进一步的，本公开上述提供的频域资源确定方法，适用于基于非交织的虚拟资源块到物理资源块(VRB-to-PRB)的映射。
基于本公开上述提供的频域资源确定方法，当终端进行PDCCH repetition时，当PDCCH携带的是DCI format 1_0，用于传输PDSCH的频域带宽可以是CORESET#0对应的频域带宽，也可以是基于与至少两个SS set分别关联的至少两个CORESET确定的指定带宽。其中，用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源可以相同，也可以不同。
本公开提供的频域资源确定方法，当终端进行PDCCH repetition时，对DCI中携带的频域资源指示信息所指示的频域资源对应的带宽进行明确，确定用于传输PDSCH的频域资源。故，通过本公开使得PDSCH的频域资源的确定更具有通用性，在用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源不同时，也能明确用于传输PDSCH的频域资源，提高传输性能。
基于相同的构思，本公开实施例还提供一种应用于网络设备的频域资源确定方法。
图5是根据一示例性实施例示出的一种频域资源确定方法的流程图。其中，该频域资源确定方法可以单独被实施，也可以结合本公开其他实施例一同被实施例。如图5所示，频域资源确定方法用于网络设备中，包括以下步骤。
在步骤S21中，配置至少两个PDCCH candidate，至少两个PDCCH candidate与具有链接关系的至少两个SS set具有一一对应关系，且至少两个PDCCH candidate用于携带DCI，DCI中包括频域资源分配信息，频域资源分配信息用于指示频域资源在指定带宽内的位置，指定带宽包括至少一个CORESET占用的RB。
本公开中，至少两个PDCCH candidate用于携带DCI可以理解为是基于至少两个PDCCH candidate发送DCI。其中，至少两个PDCCH candidate发送的DCI中包括的信息是相同的，也可以理解为是至少两个PDCCH candidate发送的DCI是一个相同的DCI。
其中，本公开中，至少两个PDCCH candidate发送的DCI的格式可以为DCI format 1_0。
本公开中，网络设备配置的至少两个PDCCH candidate的index相同。
其中，本公开中网络设备配置的至少两个PDCCH candidate中PDCCH candidate数量的典型值为两个。
一示例中，Multi-TRP PDCCH repetition中，网络设备配置的两个PDCCH candidate与具有链接关系的两个SS set一一对应，且两个PDCCH candidate的index相同且用于发送一个相同的DCI。该DCI中包括频域资源分配信息，该频域资源分配信息用于指示频域资源在指定带宽内的位置，指定带宽包括至少一个CORESET占用的RB。
其中，具有链接关系的两个SS set可以理解为是两个SS set中PDCCH candidate index一样的两个PDCCH candidate用于发送同一个DCI。
本公开中，网络设备配置的至少两个PDCCH candidate携带的DCI中包括频域资源分配信息，该频域资源指示信息用于指示频域资源在指定带宽内的位置，且该指定带宽包括至少一个CORESET占用的RB，使得终端可以基于该频域资源指示信息确定用于传输PDSCH的频域资源。故，通过本公开使得PDSCH的频域资源的确定更具有通用性，在用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源不同时，也能明确用于传输PDSCH的频域资源，使终端和网络设备对于确定的PDSCH的频域资源理解一致，进而提高传输性能。
本公开实施例以下对频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET的确定方式进行说明。
本公开一种实施方式中，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET，基于与至少两个SS set分别关联的至少两个CORESET确定。其中，该至少两个SS set是具有链接关系的。该具有链接关系的至少两个SS set，与网络设备配置的至少两个PDCCH candidate具有一一对应关系。
其中，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET为具有链接关系的至少两个SS set分别关联的至少两个CORESET中的指定CORESET。
本公开实施例中，该指定CORESET为以下之一：
A：具有链接关系的至少两个SS set分别关联的至少两个CORESET中，CORESET标识最小的CORESET。
B：指定SS set对应的CORESET。其中，指定SS set为具有链接关系的至少两个SS set中SS set标识最小的SS set。
C：指定物理资源块(Physical Resource Block，PRB)中占用频域位置最低的PRB对应的CORESET。其中，该指定PRB为PRB编号最低的PRB。该PRB编号最低是具有链接关系的至少两个SS set分别关联的至少两个CORESET中各个CORESET包含的PRB中编号最低的PRB。
本公开中，至少两个CORESET可以为CORESET#0和CORESET#1，其中CORESET#0占用的PRB中，频域位置最低的PRB为PRB#i；CORESET#1占用的PRB中，频域位置最低的PRB为PRB#j。当PRB#i比PRB#j的频域更低时，指定CORESET为CORESET#0；否则，指定CORESET为CORESET#1。
D：具有链接关系的至少两个SS set分别关联的至少两个CORESET。
本公开中，响应于指定CORESET为具有链接关系的至少两个SS set分别关联的至少两个CORESET，频域资源分配信息所指示的频域资源对应的指定带宽包括具有链接关系的至少两个SS set分别关联的至少两个CORESET所占用的全部PRB。也可以理解为是，频域资源分配信息所指示的频域资源对应的指定带宽包括从第一PRB到第二PRB的连续的PRB。其中，第一PRB为至少两个CORESET包含的PRB中占用频域位置最低的PRB，第二PRB为至少两个CORESET包含的PRB中占用频域位置最高的PRB。
本公开中，一方面，响应于具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB连续或有重叠，从第一PRB到第二PRB的连续的PRB为具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB。本公开中，另一方面，响应于具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB不连续，从第一PRB到第二PRB的连续的PRB为具有链接关系的至少两个SS set分别关联的至少两个CORESET占用的PRB，以及具有链接关系的至少两个SS set分别关联的至少两个CORESET占用PRB之间的间隔PRB。
本公开另一种实施方式中，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的至少一个CORESET为CORESET0。换言之，频域资源分配信息所指示的频域资源对应的指定带宽中所包括的CORESET，与具有链接关系的至少两个SS set分别关联的至少两个CORESET无关。
进一步的，本公开上述提供的频域资源确定方法，适用于基于非交织的虚拟资源块到物理资源块(VRB-to-PRB)的映射。
基于本公开上述提供的频域资源确定方法，在PDCCH repetition场景下，PDCCH携带的是DCI format 1_0，用于传输PDSCH的频域带宽可以是CORESET#0对应的频域带宽，也可以是基于与至少两个SS set分别关联的至少两个CORESET确定的指定带宽。其中，用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源可以相同，也可以不同。
本公开提供的频域资源确定方法，在PDCCH repetition场景中，对DCI中携带的频域资源指示信息所指示的频域资源对应的带宽进行明确，确定用于传输PDSCH的频域资源。故，通过本公开使得PDSCH的频域资源的确定更具有通用性，在用于PDCCH repetition的两个PDCCH candidate对应的CORESET的频域资源不同时，也能明确用于传输PDSCH的频域资源，提高传输性能。
可以理解的是，本公开实施例中应用于网络设备的频域资源确定方法，与应用于终端 的频域资源确定方法具有相类似之处，故，对于应用于网络设备的频域资源确定方法描述不够详尽之处，可以参阅应用于终端的频域资源确定方法的相关内容，在此不再详述。
进一步可以理解的是，本公开实施例提供的频域资源确定方法适用于终端与网络设备交互实现频域资源确定的过程。对于终端与网络设备交互实现频域资源确定过程中，终端与网络设备具备上述实施例中的相关功能。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的。当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种频域资源确定装置。
可以理解的是，本公开实施例提供的频域资源确定装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图6是根据一示例性实施例示出的一种频域资源确定装置框图。参照图6，该频域资源确定装置100包括监测单元101和处理单元102。其中，频域资源确定装置100可以被提供为上述实施例中涉及的终端。
监测单元101，用于监测至少两个PDCCH candidate，至少两个PDCCH candidate与具有链接关系的至少两个SS set具有一一对应关系，且至少两个PDCCH candidate用于携带下行控制信息DCI，DCI中包括频域资源分配信息，频域资源分配信息用于指示频域资源在指定带宽内的位置，指定带宽包括至少一个CORESET占用的RB。处理单元102，用于基于频域资源分配信息确定用于传输PDSCH的频域资源。
一种实施方式中，至少一个CORESET基于与至少两个SS set分别关联的至少两个CORESET确定。
一种实施方式中，至少一个CORESET为至少两个CORESET中的指定CORESET。
一种实施方式中，指定CORESET为以下之一：
至少两个CORESET中CORESET标识最小的CORESET；指定SS set对应的CORESET，指定SS set为至少两个SS set中SS set标识最小的SS set；指定PRB中占用 频域位置最低的PRB对应的CORESET，指定PRB为至少两个CORESET中各个CORESET包含的PRB中PRB编号最低的PRB；至少两个CORESET。
一种实施方式中，响应于指定CORESET为至少两个CORESET，指定带宽包括：从第一PRB到第二PRB的连续的PRB，其中，第一PRB为至少两个CORESET包含的PRB中占用频域位置最低的PRB，第二PRB为至少两个CORESET包含的PRB中占用频域位置最高的PRB。
一种实施方式中，至少一个CORESET为CORESET0。
一种实施方式中，DCI的格式为DCI 1_0。
图7是根据一示例性实施例示出的一种频域资源确定装置框图。参照图7，该频域资源确定装置200包括配置单元201。其中，频域资源确定装置200可以被提供为上述实施例中涉及的网络设备。
配置单元201，用于配置至少两个PDCCH candidate，至少两个PDCCH candidate与具有链接关系的至少两个SS set具有一一对应关系，且至少两个PDCCH candidate用于携带下行控制信息DCI，DCI中包括频域资源分配信息，频域资源分配信息用于指示频域资源在指定带宽内的位置，指定带宽包括至少一个CORESET占用的RB。
一种实施方式中，至少一个CORESET基于与至少两个SS set分别关联的至少两个CORESET确定。
一种实施方式中，至少一个CORESET为至少两个CORESET中的指定CORESET。
一种实施方式中，指定CORESET为以下之一：
至少两个CORESET中CORESET标识最小的CORESET；指定SS set对应的CORESET，指定SS set为至少两个SS set中SS set标识最小的SS set；指定PRB中占用频域位置最低的PRB对应的CORESET，指定PRB为至少两个CORESET中各个CORESET包含的PRB中PRB编号最低的PRB；至少两个CORESET。
一种实施方式中，响应于指定CORESET为至少两个CORESET，指定带宽包括：从第一PRB到第二PRB的连续的PRB，其中，第一PRB为至少两个CORESET包含的PRB中占用频域位置最低的PRB，第二PRB为至少两个CORESET包含的PRB中占用频域位置最高的PRB。
一种实施方式中，至少一个CORESET为CORESET0。
一种实施方式中，DCI的格式为DCI 1_0。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图8是根据一示例性实施例示出的一种用于频域资源确定的装置300的框图。例如，装置300可以被提供为一终端。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图8，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图9是根据一示例性实施例示出的一种用于频域资源确定的装置400的框图。例如，装置400可以被提供为一网络设备。参照图9，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。 装置400可以操作基于存储在存储器432的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器432，上述指令可由装置400的处理组件422执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利范围来限制。

Claims (20)

  1. 一种频域资源确定方法，其特征在于，应用于终端，包括：
    监测至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块；
    基于所述频域资源分配信息确定用于传输物理下行共享信道PDSCH的频域资源。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个控制资源集基于与所述至少两个搜索空间集分别关联的至少两个控制资源集确定。
  3. 根据权利要求2所述的方法，其特征在于，所述至少一个控制资源集为所述至少两个控制资源集中的指定控制资源集。
  4. 根据权利要求3所述的方法，其特征在于，所述指定控制资源集为以下之一：
    所述至少两个控制资源集中控制资源集标识最小的控制资源集；
    指定搜索空间集对应的控制资源集，所述指定搜索空间集为所述至少两个搜索空间集中搜索空间集标识最小的搜索空间集；
    指定物理资源块中占用频域位置最低的物理资源块对应的控制资源集，所述指定物理资源块为所述至少两个控制资源集中各个控制资源集包含的物理资源块中物理资源块编号最低的物理资源块；
    所述至少两个控制资源集。
  5. 根据权利要求4所述的方法，其特征在于，响应于所述指定控制资源集为所述至少两个控制资源集，所述指定带宽包括：
    从第一物理资源块到第二物理资源块的连续的物理资源块，其中，所述第一物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最低的物理资源块，所述第二物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最高的物理资源块。
  6. 根据权利要求1所述的方法，其特征在于，所述至少一个控制资源集为控制资源集0。
  7. 根据权利要求1至6中任意一项所述的方法，其特征在于，所述DCI的格式为DCI 1_0。
  8. 一种频域资源确定方法，其特征在于，应用于网络设备，包括：
    配置至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块。
  9. 根据权利要求8所述的方法，其特征在于，所述至少一个控制资源集基于与所述至少两个搜索空间集分别关联的至少两个控制资源集确定。
  10. 根据权利要求9所述的方法，其特征在于，所述至少一个控制资源集为所述至少两个控制资源集中的指定控制资源集。
  11. 根据权利要求10所述的方法，其特征在于，所述指定控制资源集为以下之一：
    所述至少两个控制资源集中控制资源集标识最小的控制资源集；
    指定搜索空间集对应的控制资源集，所述指定搜索空间集为所述至少两个搜索空间集中搜索空间集标识最小的搜索空间集；
    指定物理资源块中占用频域位置最低的物理资源块对应的控制资源集，所述指定物理资源块为所述至少两个控制资源集中各个控制资源集包含的物理资源块中物理资源块编号最低的物理资源块；
    所述至少两个控制资源集。
  12. 根据权利要求11所述的方法，其特征在于，响应于所述指定控制资源集为所述至少两个控制资源集，所述指定带宽包括：
    从第一物理资源块到第二物理资源块的连续的物理资源块，其中，所述第一物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最低的物理资源块，所述第二物理资源块为所述至少两个控制资源集包含的物理资源块中占用频域位置最高的物理资源块。
  13. 根据权利要求8所述的方法，其特征在于，所述至少一个控制资源集为控制资源集0。
  14. 根据权利要求8至13中任意一项所述的方法，其特征在于，所述DCI的格式为DCI 1_0。
  15. 一种频域资源确定装置，其特征在于，包括：
    监测单元，用于监测至少两个物理下行控制信道PDCCH候选资源，所述至少两个 PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块；
    处理单元，用于基于所述频域资源分配信息确定用于传输物理下行共享信道PDSCH的频域资源。
  16. 一种频域资源确定装置，其特征在于，包括：
    配置单元，用于配置至少两个物理下行控制信道PDCCH候选资源，所述至少两个PDCCH候选资源与具有链接关系的至少两个搜索空间集具有一一对应关系，且所述至少两个PDCCH候选资源用于携带下行控制信息DCI，所述DCI中包括频域资源分配信息，所述频域资源分配信息用于指示频域资源在指定带宽内的位置，所述指定带宽包括至少一个控制资源集占用的资源块。
  17. 一种频域资源确定装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至7中任意一项所述的方法。
  18. 一种频域资源确定装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求8至14中任意一项所述的方法。
  19. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行权利要求1至7中任意一项所述的方法。
  20. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行权利要求8至14中任意一项所述的方法。
PCT/CN2021/142694 2021-12-29 2021-12-29 一种频域资源确定方法、装置及存储介质 Ceased WO2023123123A1 (zh)

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