WO2021017948A1 - Dci传输方法和通信设备 - Google Patents

Dci传输方法和通信设备 Download PDF

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Publication number
WO2021017948A1
WO2021017948A1 PCT/CN2020/103309 CN2020103309W WO2021017948A1 WO 2021017948 A1 WO2021017948 A1 WO 2021017948A1 CN 2020103309 W CN2020103309 W CN 2020103309W WO 2021017948 A1 WO2021017948 A1 WO 2021017948A1
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WIPO (PCT)
Prior art keywords
frequency domain
domain resource
information
resource groups
domain resources
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PCT/CN2020/103309
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English (en)
French (fr)
Inventor
宋扬
孙鹏
鲁智
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2022506261A priority Critical patent/JP7303373B2/ja
Priority to KR1020227006640A priority patent/KR20220042411A/ko
Priority to EP20847832.1A priority patent/EP4007408A4/en
Publication of WO2021017948A1 publication Critical patent/WO2021017948A1/zh
Priority to US17/586,341 priority patent/US20220150720A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • 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 signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—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

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a downlink control information (Downlink Control Information, DCI) transmission method and communication equipment.
  • DCI Downlink Control Information
  • TRP Transmission Reception Point
  • the embodiments of the present disclosure provide a DCI transmission method and communication equipment to solve the problem that the FDM mode of multiple TRP transmission cannot be supported.
  • the embodiments of the present disclosure provide a DCI transmission method applied to a communication device, including:
  • the DCI includes frequency domain resource allocation (Frequency Domain Resource Allocation, FDRA) information
  • the FDRA information is used to determine N frequency domain resource groups
  • the N frequency domain resource groups are the physical transmission of the communication device N groups of frequency domain resources used by a downlink shared channel (Physical Downlink Shared Channel, PDSCH), and the N frequency domain resource groups respectively correspond to N spatial information indications, and N is an integer greater than or equal to 2.
  • embodiments of the present disclosure provide a communication device, including:
  • the transmission module is used to transmit DCI, the DCI includes FDRA information, the FDRA information is used to determine N frequency domain resource groups, and the N frequency domain resource groups are the N groups of frequency domains used by the communication device to transmit PDSCH Resource, and the N frequency domain resource groups correspond to N spatial information indications, and N is an integer greater than or equal to 2.
  • an embodiment of the present disclosure provides a communication device, including: a memory, a processor, and a program stored on the memory and running on the processor, and the program is implemented when the processor is executed The steps in the DCI transmission method provided by the embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the Steps in the DCI transmission method.
  • DCI is transmitted, and the DCI includes FDRA information.
  • the FDRA information is used to determine N frequency domain resource groups.
  • the N frequency domain resource groups are the N frequency domain resource groups used by the communication device to transmit PDSCH. Domain resources, and the N frequency domain resource groups respectively correspond to N spatial information indications, and N is an integer greater than or equal to 2. This can support multi-TRP transmission in FDM mode.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure
  • FIG. 3 is a structural diagram of a communication device provided by an embodiment of the present disclosure.
  • Fig. 4 is a structural diagram of another communication device provided by an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the DCI transmission method and communication device provided by the embodiments of the present disclosure can be applied to a wireless communication system.
  • the wireless communication system may be a 5G system, or an evolved Long Term Evolution (eLTE) system or a Long Term Evolution (LTE) system, or a subsequent evolved communication system.
  • eLTE evolved Long Term Evolution
  • LTE Long Term Evolution
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure. As shown in FIG. 1, it includes a terminal 11 and a network device 12.
  • the terminal 11 may be a user terminal (User Equipment, UE). ) Or other terminal-side devices, such as: mobile phones, tablet computers (Personal Computer), laptop computers (Laptop Computer), personal digital assistants (Personal Digital Assistant, PDA), mobile Internet devices (Mobile Internet Device, MID),
  • PDA Personal Digital Assistant
  • mobile Internet devices Mobile Internet Device, MID
  • For terminal-side devices such as wearable devices (Wearable Devices) or robots, it should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure.
  • the above-mentioned network device 12 may be a 4G base station, or a 5G base station, or a base station of a later version, or a base station in other communication systems, or called Node B, Evolved Node B, or Transmission Reception Point (TRP), Or access point (Access Point, AP), or other vocabulary in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical vocabulary.
  • the aforementioned network device 12 may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiments of the present disclosure, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.
  • the communication device in the embodiment of the present disclosure may be a terminal or a network device.
  • the terminal is mainly used for illustration.
  • FIG. 2 is a flowchart of a DCI transmission method provided by an embodiment of the present disclosure. The method is applied to a communication device. As shown in FIG. 2, it includes the following steps:
  • Step 201 Transmit DCI, where the DCI includes FDRA information, the FDRA information is used to determine N frequency domain resource groups, and the N frequency domain resource groups are N groups of frequency domain resources used by the communication device to transmit PDSCH. And the N frequency domain resource groups respectively correspond to N spatial information indications, and N is an integer greater than or equal to 2.
  • the DCI transmission may be receiving DCI; and when the communication device is a network device, the DCI transmission may be DCI transmission.
  • the foregoing FDRA information may be used to determine the N frequency domain resource groups, and the communication device may determine the frequency domain resources of the foregoing N frequency domain resource groups according to the FDRA information.
  • the above FDRA information respectively indicates the frequency domain resources of the above N frequency domain resource groups; or, the above FDRA information indicates the frequency domain resources of some frequency domain resource groups in the above N frequency domain resource groups, and the remaining frequency domains
  • the frequency domain resources of the resource group can be determined by deriving the frequency domain resources of the indicated frequency domain resource group; or, the above FDRA information indicates all the frequency domain resources corresponding to the above N frequency domain resource groups, and the communication device may convert the frequency domain resources according to a preset rule These frequency domain resources are divided into the aforementioned N frequency domain resource groups and so on.
  • the above-mentioned N frequency domain resource groups are the N groups of frequency domain resources used by the communication device to transmit the PDSCH.
  • the frequency domain resources in these frequency domain resource groups are allocated by the network device to the terminal for PDSCH transmission.
  • the N frequency domain resource groups corresponding to the N spatial information indications may be that different frequency domain resource groups correspond to different spatial information indications, that is, the frequency domain resource group and the spatial information indication are in a one-to-one correspondence to achieve different spatial information.
  • the information indicating status corresponds to different frequency domain resources.
  • different frequency domain resource groups correspond to different TCIs, so that different TCI states correspond to different frequency domain resources.
  • the above spatial information indication is not limited to TCI.
  • it may also be an identifier used to identify TPR, so as to realize that different TPRs correspond to different frequency domain resource groups.
  • N frequency domain resource groups can correspond to N TRPs, that is, each frequency domain resource group corresponds to the frequency domain of a TRP. Resources.
  • the frequency domain resource group may include one or more frequency domain resources, and the number of frequency domain resources included in different frequency domain resource groups may be the same or different, which is not limited.
  • the frequency domain resource may be a resource block group (Resource Block Group, RBG), a virtual resource block (Virtual Resource Block, VRB), or a physical resource block (Physical Resource Block, PRB).
  • RBG Resource Block Group
  • VRB Virtual Resource Block
  • PRB Physical Resource Block
  • the frequency domain resource group indicated by the FDRA information in the embodiment of the present disclosure can also be applied to the two frequency domain resource allocation types supported by the Rel-15 protocol: type 0 (type 0) and type 1 (type 1). Of course, this is not the case.
  • the limitation can also be applied to the frequency domain resource allocation type newly introduced in subsequent protocol versions.
  • N frequency domain resource groups corresponding to the N spatial information indications can be configured to support multi-TRP transmission in the FDM manner.
  • the above-mentioned communication device may also perform PDSCH transmission in the above-mentioned N frequency domain resource groups according to their respective corresponding spatial information indication (for example, TCI) states, so as to realize multi-TRP transmission in FDM mode.
  • TCI spatial information indication
  • the PDSCH transmission mode may include FDM transmission scheme 2 (scheme 2), where in the above FDM transmission mode, the same time domain resources (for example, multiple Two orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols can indicate the status of N spatial information indications (for example: TCI) and transmit multiple transmission opportunities (transmission occasions), and transmission opportunities (transmission occasions).
  • N spatial information indications for example: TCI
  • transmission occasions transmission opportunities
  • transmission occasions transmission opportunities
  • each frequency domain resource without overlap is associated with a spatial information indication state, and/or all frequency domain resources without overlap are associated with the same one or more demodulation reference signals (Demodulation Reference Signal, DMRS) )port.
  • DMRS Demodulation Reference Signal
  • each The transmission of non-overlapping frequency domain resources adopts a single codeword of RV, and the RV corresponding to each non-overlapping frequency domain resource may be the same or different.
  • the PDSCH transmission mode is not limited.
  • the PDSCH transmission mode can also be the above-mentioned FDM transmission scheme 2a or scheme 2b and the Time Division Multiplexing (TDM) transmission scheme (for example, scheme). 3 or a combination of scheme 4).
  • TDM Time Division Multiplexing
  • the above FDRA information is an FDRA domain and indicates K frequency domain resources, and the K frequency domain resources are divided into M frequency domain resource groups, where K is an integer greater than or equal to N , M is an integer greater than or equal to 1 and less than or equal to N.
  • an FDRA domain in the DCI to indicate the frequency domain resource used by the PDSCH of the communication device, for example, to indicate the frequency domain resource used by the PDSCH of a terminal scheduled by the DCI.
  • K RBGs, VRBs or PRGs in the frequency domain resources indicated by the FDRA domain which are divided into N frequency domain resource groups, and each frequency domain resource group corresponds to a spatial information indication (for example, TCI).
  • the correspondence between the frequency domain resource group and the spatial information indication may be a one-to-one correspondence between the default spatial information indication and the frequency domain resource group, pre-configured, or the correspondence between the spatial information indication and the frequency domain resource group is configured by signaling.
  • the K frequency domain resources are divided into the M frequency domain resource groups in a continuous or non-continuous manner according to a first ratio.
  • the above-mentioned first proportion may be the proportion of frequency domain resources of some frequency domain resource groups in the K frequency domain resources in the M frequency domain resource groups, and this part of frequency domain resource groups includes the same number of frequency domain resources; or
  • the foregoing first proportion may be the proportion of the frequency domain resources of the frequency domain resource group with the most frequency domain resources among the M frequency domain resource groups occupying the K frequency domain resources; or the foregoing first proportion may include the M frequency domain resource groups
  • the ratio of the frequency domain resources of each frequency domain resource group to the K frequency domain resources, and the number of frequency domain resources included in different frequency domain resource groups may be the same or different.
  • M frequency domain resource groups include the first frequency domain resource group and the second frequency domain resource group 2, that is, M is equal to 2.
  • the above-mentioned first ratio is an even distribution, that is, 1/M, K is equal to 10, then the first frequency The domain resource group may include 5 frequency domain resources, and the second frequency domain resource group may include 5 frequency domain resources.
  • M frequency domain resource groups include a first frequency domain resource group and a second frequency domain resource group, and the above-mentioned first ratio is that the number of frequency domain resources of the first frequency domain resource group is 1/4 of the K frequency domain resources, The frequency domain resource number of the second frequency domain resource group is 3/4 of the K frequency domain resources.
  • the frequency domain resource calculated The number of frequency domain resources of the group is rounded up, and the number of frequency domain resources of the last frequency domain resource group is the number of frequency domain resources remaining after K frequency domain resources are allocated to other frequency domain resource groups. If K is equal to 10, the first frequency domain resource group may include 3 frequency domain resources, and the second frequency domain resource group may include 7 frequency domain resources.
  • the above-mentioned first ratio may be default, pre-configured or configured by signaling, for example: Radio Resource Control (RRC) signaling or Media Access Control Control Element (MAC CE) )
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • DCI indicates that each frequency domain resource group uses the proportion of all frequency domain resources indicated by the FDRA domain.
  • the above-mentioned first ratio may also be the ratio of the number of frequency domain resources among the M frequency domain resource groups.
  • the M frequency domain resource groups include a first frequency domain resource group and a second frequency domain resource group, then
  • the aforementioned first ratio includes the ratio between the number of frequency domain resources included in the first frequency domain resource group and the number of frequency domain resources included in the second frequency domain resource group.
  • the foregoing division into the M frequency domain resource groups in a continuous or discontinuous manner may be that the frequency domain resources in the frequency domain resource group may be continuous or discontinuous among the indicated K frequency domain resources.
  • K is equal to 9
  • the first 3 of the above K frequency domain resources can be divided into the first Frequency domain resource groups, the middle 3 are divided into the second frequency domain resource group, and the last 3 are divided into the third frequency domain resource group; or it can be that the 9 frequency domain resources are divided into the first frequency domain in turn
  • the resource group, the second frequency domain resource group, and the third frequency domain resource group that is, the 9 frequency domain resources are divided into the first frequency domain resource group, the second frequency domain resource group, the third frequency domain resource group, and the first frequency domain resource group.
  • the frequency domain resources of the remaining N-M frequency domain resource groups are determined according to the frequency domain resources and configuration information of the M frequency domain resource groups indicated by the FDRA information.
  • the FDRA domain can indicate the frequency domain resources used by some frequency domain resource groups (for example, a frequency domain resource group), and the frequency domain resources and other configuration information used by this part of the frequency domain resource groups can be derived to obtain the rest. Frequency domain resources used by the frequency domain resource group.
  • the above configuration information can be used to configure the offset between frequency domain resource groups, and the configuration information is configured on the network side or agreed in a protocol.
  • RRC configures the offset between one frequency domain resource group, or RRC configures the offset between multiple frequency domain resource groups, which is indicated by MAC CE or DCI, or one of the default frequency domain resource groups Offset between.
  • N 2 frequency domain resource groups
  • FDRA When FDRA is type 0, it is assumed that there are a total of 12 RBGs (RBG0, 1, 2, ..., 11) on one active bandwidth part (Band Width Part, BWP), and the FDRA field of DCI has a total of 12 bits.
  • the configuration information is that the offset of the i-th frequency-domain resource of the second frequency-domain resource group and the i-th frequency-domain resource of the first frequency-domain resource group is 1 RBG, and 12 bits of the FDRA domain of DCI indicate the first The RBG numbers used by the frequency domain resource groups, 0010 0100 0100, that is, the first frequency domain resource group uses RBG 2, 5, and 9, and the second frequency domain resource group uses RBG 3, 6, 10; assuming the configuration information is The frequency domain resources used by the second frequency domain resource group are offset by 1 RBG as a whole from the frequency domain resources used by the first frequency domain resource group.
  • the FDRA field of DCI indicates the starting VRB number and length of the first frequency domain resource group, assuming that the configuration information is the frequency domain resource used by the second frequency domain resource group and the first frequency domain resource
  • the frequency domain resources used by the group are offset by 1 RBG as a whole. If the terminal determines that the VRB used by the first frequency domain resource group is VRB8 to VRB16, then the second frequency domain resource group uses VRB17 to VRB25.
  • the division of K frequency domain resources into M frequency domain resource groups may be based on default and pre-determined methods.
  • Divided by configuration or rules determined by signaling configuration, etc., the rule can be any of the following:
  • Some frequency domain resource groups include the same number of frequency domain resources.
  • the frequency domain resources in the frequency domain resource groups are non-continuous.
  • RBG/VRB/PRG correspond to different frequency domain resource groups in sequence.
  • RBGs corresponding to two frequency domain resource groups in turn as an example. Assume that there are 12 RBGs (RBG0, 1, 2, ..., 11) on a BWP, and the FDRA domain of DCI A total of 12 bits are 0011 0110 0111, that is, the scheduled PDSCH uses RBG2, 3, 5, 6, 9, 10, 11. Then RBG2 belongs to the first frequency domain resource group, RBG3 belongs to the second frequency domain resource group, RBG5 belongs to the first frequency domain resource group, RBG6 belongs to the second frequency domain resource group, and so on. When the number of allocated RBGs is an odd number, the number of RBGs included in the two frequency domain resource groups are not equal; otherwise, they are equal.
  • the FDRA of the PDSCH is type 0, take the PRGs corresponding to two frequency domain resource groups in turn as an example. Assume that there are 12 RBGs (RBG0, 1, 2, ..., 11) on a BWP, and the FDRA domain of DCI A total of 12 bits are 0011 0110 0111, that is, the scheduled PDSCH uses RBG2, 3, 5, 6, 9, 10, 11. Assuming that the RBG size is 4 PRBs and the PRG size is 2 PRBs, then one RBG may contain 2 PRGs. In this way, the first PRG in each RBG belongs to the first frequency domain resource group, and the second PRG belongs to the second frequency domain resource group.
  • the above-mentioned frequency domain resources are averagely grouped, or some frequency domain resource groups include the same number of frequency domain resources. It can be understood that the K frequency domain resources indicated by the FDRA domain are divided into N frequency domain resources according to rules, and each frequency domain resource has one frequency domain. Domain resource group, the division method can default to the average grouping or approximate average of frequency domain resources. For example: where N-1 frequency domain resource groups include There are frequency domain resources, and one frequency domain resource group contains the remaining mod(K/n) frequency domain resources. Or the frequency domain resource group is divided on a certain boundary, and the number of frequency domain resources contained in frequency domain resource group 0 and frequency domain resource group N-1 is greater than or equal to 1 and less than or equal to The number of frequency domain resources contained in other frequency domain resource groups is equal to
  • the frequency domain resources in the frequency domain resource group are continuous or non-continuous.
  • RBG/PRG is the basic unit to correspond to different frequency domain resource groups
  • VRB is the basic unit. Correspond to different frequency domain resource groups.
  • the FDRA information includes N pieces of information, and the N pieces of information are respectively used to indicate the N frequency domain resource groups;
  • the N pieces of information are N pieces of information in one FDRA domain in the DCI, or the N pieces of information are N pieces of FDRA domain in the DCI.
  • the foregoing indication of the N frequency domain resource groups may be frequency domain resources indicating the N frequency domain resource groups, that is, frequency domain resources used by the frequency domain resource groups.
  • the frequency domain resource allocation of each frequency domain resource group can be flexibly performed.
  • the jth information in the N pieces of information is used to indicate that some or all of the frequency domain resources in the jth available frequency domain resource group are used as frequency domain resources of the jth frequency domain resource group;
  • part or all of the frequency domain resources included in the activated BWP can be divided into N available frequency domain resource groups, and j is any integer from 1 to N.
  • part or all of the frequency domain resources included in the activated BWP may be divided into the N available frequency domain resource groups in a continuous or non-continuous manner according to a second ratio.
  • the above-mentioned second ratio may be the same or a different ratio from the above-mentioned first ratio, and is used to determine the number of frequency domain resources allocated to the N available frequency domain resource groups for part or all of the frequency domain resources included in the activated BWP, and Part or all of the frequency domain resources included in the activated BWP can be divided into the N available frequency domain resource groups in a continuous or non-contiguous manner according to the second ratio.
  • the implementation manner of dividing into the M frequency domain resource groups will not be repeated here.
  • each available frequency domain resource group may be configured on the network side or agreed upon by a protocol.
  • each available frequency domain resource group includes one or more available frequency domain resources, and these N available frequency domain resource groups are the same as the N indicated by the DCI.
  • the frequency domain resource groups have a one-to-one correspondence, so that when DCI indicates the frequency domain resources of the N frequency domain resource groups, only the indication in the available frequency domain resources of the corresponding available frequency domain resource group is needed, thereby saving DCI s expenses.
  • RBGs correspond to one available frequency domain resource group in turn, RBG0, 2, 4, 6, 8, 10 correspond to the first available frequency domain resource group, RBG1, 3, 5, 7, 9, 11 corresponds to the second available frequency domain resource group.
  • the first FDRA field of DCI can indicate the RBG number used by the first frequency domain resource group by 6 bits (for example, 100110 indicates the use of RBG0, 6, 8), and the second FDRA field can also 6 bits are used to indicate the RBG number used by the second frequency domain group (for example, 100110 indicates the use of RBG1, 7, 9).
  • the total number of bits in the two FDRA fields is equal to the number of bits in the original FDRA information.
  • the resource indication value (RIV) included in the jth FDRA field of DCI is Bits are used to indicate the starting number and the length of the n-th frequency domain resources used by the VRB group, wherein K 'j RBG is the number of the j-th part RBG frequency domain resource groups may be used.
  • the communication device in the case where the precoding granularity is configured as wideband, the communication device expects any piece of spatial information to indicate that the corresponding frequency domain resource group is a continuous frequency domain resource, and assume Any piece of spatial information indicates that the frequency domain resources of the corresponding frequency domain resource group use the same precoding.
  • the terminal if the precoding granularity is determined to be "wideband", the terminal does not expect that the frequency domain resource group indicated by any one of the spatial information is scheduled as a non-contiguous frequency domain resource (for example, : PRB), and the terminal may assume that the same precoding is used for any frequency domain resource group indicated by the spatial information.
  • the frequency domain resource group indicated by any one of the spatial information is scheduled as a non-contiguous frequency domain resource (for example, : PRB)
  • the terminal may assume that the same precoding is used for any frequency domain resource group indicated by the spatial information.
  • the network device configures any frequency domain resource group indicated by the spatial information to be scheduled as continuous frequency domain resources (for example: PRB ), and the network device uses the same precoding corresponding to any frequency domain resource group indicated by the spatial information.
  • the precoding granularity is determined to be "wideband”
  • the network device configures any frequency domain resource group indicated by the spatial information to be scheduled as continuous frequency domain resources (for example: PRB ), and the network device uses the same precoding corresponding to any frequency domain resource group indicated by the spatial information.
  • any piece of spatial information indicates that the corresponding frequency domain resource group is a continuous frequency domain resource, and it is assumed that any piece of spatial information indicates that the frequency domain resources of the corresponding frequency domain resource group use the same precoding, the PDSCH transmission by the communication device can be reduced. Complexity.
  • DCI is transmitted, and the DCI includes frequency domain resource allocation FDRA information.
  • the FDRA information is used to determine N frequency domain resource groups, and the N frequency domain resource groups transmit physical downlinks for the communication device.
  • N groups of frequency domain resources used by the shared channel PDSCH, and the N frequency domain resource groups respectively correspond to N spatial information indications, and N is an integer greater than or equal to 2. In this way, N groups of frequency domain resources can be configured, thereby avoiding PDSCH transmission conflicts.
  • FIG. 3 is a structural diagram of a communication device provided by an embodiment of the present disclosure.
  • the communication device 300 includes:
  • the transmission module 301 is configured to transmit DCI, the DCI includes FDRA information, and the FDRA information is used to determine N frequency domain resource groups.
  • the N frequency domain resource groups are the N frequency domain resource groups used by the communication device to transmit PDSCH. Domain resources, and the N frequency domain resource groups respectively correspond to N spatial information indications, and N is an integer greater than or equal to 2.
  • the FDRA information is one FDRA domain and indicates K frequency domain resources, and the K frequency domain resources are divided into M frequency domain resource groups, where K is an integer greater than or equal to N, and M is greater than Or an integer equal to 1 and less than or equal to N.
  • the K frequency domain resources are divided into the M frequency domain resource groups in a continuous or non-continuous manner according to a first ratio.
  • the frequency domain resources of the remaining N-M frequency domain resource groups are determined according to the frequency domain resources and configuration information of the M frequency domain resource groups indicated by the FDRA information.
  • the configuration information is used to configure the offset between frequency domain resource groups, and the configuration information is configured on the network side or agreed in a protocol.
  • the FDRA information includes N pieces of information, and the N pieces of information are respectively used to indicate the N frequency domain resource groups;
  • the N pieces of information are N pieces of information in one FDRA domain in the DCI, or the N pieces of information are N pieces of FDRA domain in the DCI.
  • the jth information in the N pieces of information is used to indicate that some or all of the frequency domain resources in the jth available frequency domain resource group are used as frequency domain resources of the jth frequency domain resource group;
  • part or all of the frequency domain resources included in the active bandwidth part BWP are divided into N available frequency domain resource groups, and j is any integer from 1 to N.
  • the frequency domain resources of each available frequency domain resource group are configured on the network side or agreed upon by a protocol.
  • part or all of the frequency domain resources included in the activated BWP are divided into the N available frequency domain resource groups in a continuous or non-continuous manner according to a second ratio.
  • the communication device when the precoding granularity is configured to be broadband, the communication device expects that any piece of spatial information indicates that the corresponding frequency domain resource group is a continuous frequency domain resource, and assumes that any piece of spatial information indicates the corresponding frequency domain.
  • the frequency domain resources of the domain resource group use the same precoding.
  • the communication device provided in the embodiment of the present disclosure can implement the various processes implemented by the communication device in the method embodiment of FIG. 2. To avoid repetition, details are not described herein again, and can support multi-TRP transmission in the FDM mode.
  • FIG. 4 is a schematic diagram of the hardware structure of a communication device that implements various embodiments of the present disclosure.
  • the structure diagram of the communication device in this embodiment is illustrated by the structure diagram of the terminal.
  • the communication device 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and Power supply 411 and other components.
  • a radio frequency unit 401 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, a processor 410, and Power supply 411 and other components.
  • terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than those shown in the figure, or combine certain components, or arrange different components.
  • terminals include but are not limited to mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, robots, wearable devices, and ped
  • the radio frequency unit 401 is used to transmit DCI.
  • the DCI includes FDRA information.
  • the FDRA information is used to determine N frequency domain resource groups.
  • the N frequency domain resource groups are the N frequency domain resource groups used by the communication device to transmit PDSCH. Domain resources, and the N frequency domain resource groups respectively correspond to N spatial information indications, and N is an integer greater than or equal to 2.
  • the FDRA information is one FDRA domain and indicates K frequency domain resources, and the K frequency domain resources are divided into M frequency domain resource groups, where K is an integer greater than or equal to N, and M is greater than Or an integer equal to 1 and less than or equal to N.
  • the K frequency domain resources are divided into the M frequency domain resource groups in a continuous or non-continuous manner according to a first ratio.
  • the frequency domain resources of the remaining N-M frequency domain resource groups are determined according to the frequency domain resources and configuration information of the M frequency domain resource groups indicated by the FDRA information.
  • the configuration information is used to configure the offset between frequency domain resource groups, and the configuration information is configured on the network side or agreed in a protocol.
  • the FDRA information includes N pieces of information, and the N pieces of information are respectively used to indicate the N frequency domain resource groups;
  • the N pieces of information are N pieces of information in one FDRA domain in the DCI, or the N pieces of information are N pieces of FDRA domain in the DCI.
  • the jth information in the N pieces of information is used to indicate that some or all of the frequency domain resources in the jth available frequency domain resource group are used as frequency domain resources of the jth frequency domain resource group;
  • part or all of the frequency domain resources included in the active bandwidth part BWP are divided into N available frequency domain resource groups, and j is any integer from 1 to N.
  • the frequency domain resources of each available frequency domain resource group are configured on the network side or agreed upon by a protocol.
  • part or all of the frequency domain resources included in the activated BWP are divided into the N available frequency domain resource groups in a continuous or non-continuous manner according to a second ratio.
  • the communication device when the precoding granularity is configured to be broadband, the communication device expects that any piece of spatial information indicates that the corresponding frequency domain resource group is a continuous frequency domain resource, and assumes that any piece of spatial information indicates the corresponding frequency domain.
  • the frequency domain resources of the domain resource group use the same precoding.
  • the above-mentioned communication device can support multi-TRP transmission in FDM mode.
  • the radio frequency unit 401 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 410; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 402, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 403 can convert the audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into audio signals and output them as sounds. Moreover, the audio output unit 403 may also provide audio output related to a specific function performed by the terminal 400 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 404 is used to receive audio or video signals.
  • the input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042, and the graphics processor 4041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 406.
  • the image frame processed by the graphics processor 4041 may be stored in the memory 409 (or other storage medium) or sent via the radio frequency unit 401 or the network module 402.
  • the microphone 4042 can receive sound and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 401 in the case of a telephone call mode for output.
  • the terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 4061 and/or when the terminal 400 is moved to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 405 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
  • the display unit 406 is used to display information input by the user or information provided to the user.
  • the display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 407 can be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal.
  • the user input unit 407 includes a touch panel 4071 and other input devices 4072.
  • the touch panel 4071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 4071 or near the touch panel 4071. operating).
  • the touch panel 4071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 410, the command sent by the processor 410 is received and executed.
  • the touch panel 4071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 407 may also include other input devices 4072.
  • other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 4071 can cover the display panel 4061.
  • the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 4061.
  • the touch panel 4071 and the display panel 4061 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 4071 and the display panel 4061 can be integrated. Realize the input and output functions of the terminal, which are not limited here.
  • the interface unit 408 is an interface for connecting an external device with the terminal 400.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 408 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 400 or may be used to communicate between the terminal 400 and the external device. Transfer data between.
  • the memory 409 can be used to store software programs and various data.
  • the memory 409 may mainly include a storage program area and a storage data area.
  • the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 410 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. It executes by running or executing software programs and/or modules stored in the memory 409, and calling data stored in the memory 409. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
  • the processor 410 may include one or more processing units; optionally, the processor 410 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc.
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.
  • the terminal 400 may also include a power source 411 (such as a battery) for supplying power to various components.
  • a power source 411 such as a battery
  • the power source 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the terminal 400 includes some functional modules not shown, which will not be repeated here.
  • an embodiment of the present disclosure further provides a terminal, including a processor 410, a memory 409, and a computer program stored on the memory 409 and running on the processor 410.
  • a terminal including a processor 410, a memory 409, and a computer program stored on the memory 409 and running on the processor 410.
  • the computer program is executed by the processor 410,
  • Each process of the foregoing DCI transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present disclosure also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the DCI transmission method provided by the embodiment of the present disclosure is realized, and the same technology The effect, in order to avoid repetition, will not be repeated here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. ⁇
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.

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Abstract

本公开实施例提供一种DCI传输方法和通信设备，该方法包括：传输DCI，所述DCI包括FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。

Description

DCI传输方法和通信设备
相关申请的交叉引用
本申请主张在2019年7月30日在中国提交的中国专利申请号No.201910696683.1的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种下行控制信息(Downlink Control Information，DCI)传输方法和通信设备。
背景技术
一些通信系统(例如：5G通信系统)引入多发送接收点(Transmission Reception Point，TRP)传输技术。但由于网络设备在物理下行控制信道(Physical Downlink Control Channel，PDCCH)传输的DCI只支持配置一个频域资源组，从而导致目前通信系统无法支持频分复用(Frequency Division Multiplexing，FDM)方式的多TRP传输。
发明内容
本公开实施例提供一种DCI传输方法和通信设备，以解决无法支持FDM方式的多TRP传输的问题。
第一方面，本公开实施例提供一种DCI传输方法，应用于通信设备，包括：
传输DCI，所述DCI包括频域资源分配(Frequency Domain Resource Allocation，FDRA)信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输物理下行共享信道(Physical Downlink Shared Channel，PDSCH)使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
第二方面，本公开实施例提供一种通信设备，包括：
传输模块，用于传输DCI，所述DCI包括FDRA信息，所述FDRA信息 用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
第三方面，本公开实施例提供一种通信设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现本公开实施例提供的DCI传输方法中的步骤。
第四方面，本公开实施例提供一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现本公开实施例提供的DCI传输方法中的步骤。
本公开实施例中，传输DCI，所述DCI包括FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。这样可以支持FDM方式的多TRP传输。
附图说明
图1是本公开实施例可应用的一种网络系统的结构图；
图2是本公开实施例提供的一种DCI传输方法的流程图；
图3是本公开实施例提供的一种通信设备的结构图；
图4是本公开实施例提供的另一种通信设备的结构图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清 楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
下面结合附图介绍本公开的实施例。本公开实施例提供的DCI传输方法和通信设备可以应用于无线通信系统中。该无线通信系统可以为5G系统，或者演进型长期演进(Evolved Long Term Evolution，eLTE)系统或者长期演进(Long Term Evolution，LTE)系统，或者后续演进通信系统等。
请参见图1，图1是本公开实施例可应用的一种网络系统的结构图，如图1所示，包括终端11和网络设备12，其中，终端11可以是用户终端(User Equipment，UE)或者其他终端侧设备，例如：手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或者机器人等终端侧设备，需要说明的是，在本公开实施例中并不限定终端11的具体类型。上述网络设备12可以是4G基站，或者5G基站，或者以后版本的基站，或者其他通信系统中的基站，或者称之为节点B，演进节点B，或者传输接收点(Transmission Reception Point，TRP)，或者接入点(Access Point，AP)，或者所述领域中其他词汇，只要达到相同的技术效果，所述网络设备不限于特定技术词汇。另外，上述网络设备12可以是主节点(Master Node，MN)，或者辅节点(Secondary Node，SN)。需要说明的是，在本公开实施例中仅以5G基站为例，但是并不限定网络设备的具体类型。
需要说明的是，本公开实施例中通信设备可以是终端或者网络设备，其中，本公开实施例中，主要是终端进行举例说明。
请参见图2，图2是本公开实施例提供的一种DCI传输方法的流程图，该方法应用于通信设备，如图2所示，包括以下步骤：
步骤201、传输DCI，所述DCI包括FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
其中，在上述通信设备为终端的情况下，上述传输DCI可以是接收DCI；而在上述通信设备为网络设备的情况下，上述传输DCI可以是发送DCI。
上述FDRA信息用于确定N个频域资源组可以是，通信设备依据该FDRA信息可以确定出上述N个频域资源组的频域资源。例如：上述FDRA信息分别指示了上述N个频域资源组的频域资源；或者，上述FDRA信息指示了上述N个频域资源组中的部分频域资源组的频域资源，而其余频域资源组的频域资源可以通过指示的频域资源组的频域资源推导确定；或者，上述FDRA信息指示上述N个频域资源组对应的全部频域资源，通信设备可以按照预先设置的规则将这些频域资源划分成上述N个频域资源组等。
上述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源可以是，这些频域资源组内的频域资源是网络设备分配给终端的用于PDSCH传输的。
而上述N个频域资源组分别对应N个空间信息指示可以是，不同频域资源组对应不同的空间信息指示，即频域资源组与空间信息指示是一一对应关系，以实现不同的空间信息指示状态对应不同的频域资源。例如：不同的频域资源组对应不同的TCI，以实现不同的TCI状态对应不同的频域资源。需要说明的是，上述空间信息指示并不限定为TCI，例如：还可以是用于标识TPR的标识，以实现不同的TPR对应不同的频域资源组。
需要说明的是，本公开实施例中，不同的TRP可以对应不同的空间信息指示，从而上述N个频域资源组可以分别对应N个TRP，即每个频域资源组对应一个TRP的频域资源。
另外，本公开实施例中，频域资源组可以包括一个或者多个频域资源，且不同频域资源组内包括的频域资源个数可以相同或者不同，对此不作限定。
另外，频域资源可以是资源块组(Resource Block Group，RBG)、虚拟资源块(Virtual Resource Block，VRB)或者物理资源块(Physical Resource Block， PRB)。本公开实施例中FDRA信息指示的频域资源组同样可以适用于Rel-15协议支持的两种频域资源分配类型：类型0(type 0)和类型1(type 1)，当然，对此不作限定，也可以应用于后续协议版本新引入的频域资源分配类型。
本公开实施例中，通过上述步骤可以实现配置分别对应N个空间信息指示的N个频域资源组，从而支持FDM方式的多TRP传输。
进一步的，本公开实施例中，上述通信设备还可以在上述N个频域资源组分别按照各自对应的空间信息指示(例如：TCI)状态进行PDSCH传输，以实现FDM方式的多TRP传输。
需要说明的是，本公开实施例中，进行PDSCH传输的方式可以包括FDM传输方案2(scheme 2)，其中，在上述FDM传输方式中，在相同的时域资源(例如：时隙内的多个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号)可以指示N个空间信息指示(例如：TCI)状态并且传输多个传输机会(transmission occasion)，传输机会(transmission occasion)之间的频域资源没有交叠。例如：每个无交叠的频域资源关联到一个空间信息指示状态，和/或，所有无交叠的频域资源均关联到相同的一个或者多个解调参考信号(Demodulation Reference Signal，DMRS)端口。且在一种实现方案2a(scheme 2a)中，所有频域资源传输采用同一个冗余版本(Redundancy Version，RV)单编码码字，或者在另一种实现方案2b(scheme2b)中，每个非交叠频域资源传输采用一个RV的单编码码字，且对应于每个非交叠频域资源上的RV可以相同或不同。
当然，本公开实施例中，对于PDSCH传输的方式不作限定，例如：PDSCH传输的方式还可以是上述FDM传输方案scheme 2a或scheme 2b与时分复用(Time Division Multiplexing，TDM)传输方案(例如scheme 3或scheme 4)的结合。
作为一种可选的实施方式，上述FDRA信息为一个FDRA域，且指示K个频域资源，所述K个频域资源分成M个频域资源组，其中，K为大于或者等于N的整数，M为大于或者等于1且小于或等于N的整数。
该实施方式中，可以实现在DCI中使用一个FDRA域指示通信设备的PDSCH使用的频域资源，例如：指示该DCI调度的一个终端的PDSCH使用 的频域资源。例如：FDRA域指示的频域资源内共有K个RBG、VRB或者PRG，分成N个频域资源组，每个频域资源组对应一个空间信息指示(例如：TCI)。
另外，频域资源组与空间信息指示的对应关系可以是默认空间信息指示与频域资源组一一对应、预先配置或者由信令配置空间信息指示与频域资源组的对应关系。
该实施方式中，由于通过一个FDRA域进行指示，从而无需增加DCI的开销，且无需修改DCI的信息域。
可选的，所述K个频域资源按照第一比例以连续或非连续方式划分至所述M个频域资源组。
其中，上述第一比例可以是M个频域资源组中部分频域资源组的频域资源在K个频域资源所占的比例，这一部分频域资源组包括的频域资源数相同；或者上述第一比例可以是M个频域资源组中频域资源最多的频域资源组的频域资源在K个频域资源所占的比例；或者上述第一比例可以包括M个频域资源组中每个频域资源组的频域资源在K个频域资源所占的比例，不同频域资源组包括的频域资源数可以相同或者不同。例如：M个频域资源组包括第一频域资源组和第二频域资源组2，即M等于2，上述第一比例为平均分配，即1/M，K等于10，则第一频域资源组可以包括5个频域资源，第二频域资源组可以包括5个频域资源。
当按照第一比例计算得到的任意一个频域资源组的频域资源数不是整数时，还需要对计算得到的频域资源数进行取整(包括上取整或下取整)。例如：M个频域资源组包括第一频域资源组和第二频域资源组，上述第一比例为第一频域资源组的频域资源数为K个频域资源的1/4，第二频域资源组的频域资源数为K个频域资源的3/4，如果计算得到的任意一个频域资源组的频域资源数不是整数时，则对计算得到的该频域资源组的频域资源数进行上取整，最后一个频域资源组的频域资源数为K个频域资源分配给其他频域资源组后剩余的频域资源数。若K等于10，则第一频域资源组可以包括3个频域资源，第二频域资源组可以包括7个频域资源。
另外，上述第一比例可以是默认、预先配置或者由信令配置，例如：由无 线资源控制(Radio Resource Control，RRC)信令或媒体接入控制的控制单元(Media Access Control Control Element，MAC CE)或DCI指示每个频域资源组使用FDRA域指示的所有频域资源中的比例。
当然，上述第一比例还可以是M个频域资源组之间的频域资源个数的比例，例如：M个频域资源组包括第一频域资源组和第二频域资源组，则上述第一比例包括第一频域资源组包括的频域资源数与第二频域资源组包括的频域资源数之间的比例。
上述以连续或非连续方式划分至所述M个频域资源组可以是，频域资源组内的频域资源在指示的K个频域资源中可以是连续或者非连续的。以每个频域资源组在K个频域资源所占的比例相同，且为1/3为例，K等于9，则可以是将上述K个频域资源中的前3个划分为第一个频域资源组，中间3个划分为第二个频域资源组，最后3个划分为第三个频域资源组；或者可以是，将9个频域资源依次轮流划分至第一频域资源组、第二频域资源组和第三频域资源组，即将9个频域资源依次划分至第一频域资源组、第二频域资源组、第三频域资源组、第一频域资源组、第二频域资源组、第三频域资源组、第一频域资源组、第二频域资源组、第三频域资源组。
该实施方式中，由于K个频域资源按照第一比例以连续或非连续方式划分至所述M个频域资源组，从而不需要指示每个频域资源组的频域资源，从而可以节约DCI的开销。
可选的，当M小于N时，依据所述FDRA信息指示的M个频域资源组的频域资源和配置信息确定其余N-M个频域资源组的频域资源。
该实施方式中，可以实现FDRA域指示部分频域资源组(例如：一个频域资源组)使用的频域资源，由这部分频域资源组使用的频域资源和其他配置信息可以推导得到其余频域资源组使用的频域资源。
例如：上述配置信息可以用于配置频域资源组之间的偏移量，且所述配置信息网络侧配置或者协议约定。具体可以是，RRC配置一个频域资源组之间的偏移量，或者RRC配置多个频域资源组之间的偏移量由MAC CE或DCI指示其中一个，或默认的频域资源组之间的偏移量。
以N＝2个频域资源组，FDRA域指示M＝1个频域资源组使用的频域资 源为例。
在FDRA为type 0时，假设在一个激活带宽部分(Band Width Part，BWP)上共有12个RBG(RBG0，1，2，…，11)，DCI的FDRA域共有12个比特。假设配置信息为第二个频域资源组的第i个频域资源与第一个频域资源组的第i个频域资源偏移为1个RBG，DCI的FDRA域12个比特指示第一个频域资源组使用的RBG编号，0010 0100 0100，即第一个频域资源组使用RBG2、5、9，则可以得到第二个频域资源组使用RBG3、6、10；假设配置信息为第二个频域资源组使用的频域资源与第一个频域资源组使用的频域资源整体偏移1个RBG，若DCI的FDRA域12个比特指示第一个频域资源组使用的RBG编号，0110 0100 0000，即第一个频域资源组使用RBG1、2、5，则可以得到第二个频域资源组使用RBG6、7、10；
在FDRA为type 1时，DCI的FDRA域指示第一个频域资源组的起始VRB编号和长度，假设配置信息为第二个频域资源组使用的频域资源与第一个频域资源组使用的频域资源整体偏移1个RBG，若终端确定第一个频域资源组使用的VRB为VRB8到VRB16，则第二个频域资源组使用VRB17到VRB25。
当然，本公开实施例中，并限定通过上述两种可选的方式，来确定频域资源组的频域资源，例如：K个频域资源分成M个频域资源组可以是按照默认、预先配置或者由信令配置等方式确定的规则进行划分的，该规则可以是如下任意一项：
按照频域资源组的顺序，依次划分至对应的频域资源组；或者
频域资源平均分组；或者
部分频域资源组包括的频域资源数相同。
其中，上述按照频域资源组的顺序，依次划分至对应的频域资源组的情况下，频域资源组内的频域资源是非连续的。例如：在FDRA域指示的K个频域资源内以RBG/VRB/PRG依次对应不同的频域资源组。
在PDSCH的FDRA为type 0的情况下，以RBG依次轮流对应两个频域资源组为例，假设在一个BWP上共有12个RBG(RBG0，1，2，…，11)，DCI的FDRA域共有12个比特为0011 0110 0111，即调度的PDSCH使用 RBG2、3、5、6、9、10、11。则RBG2属于第一个频域资源组，RBG3属于第二个频域资源组，RBG5属于第一个频域资源组，RBG6属于第二个频域资源组，依次类推。当分配的RBG数为奇数时，两个频域资源组包含的RBG数量不相等；否则相等。
在PDSCH的FDRA为type 0的情况下，以PRG依次轮流对应两个频域资源组为例，假设在一个BWP上共有12个RBG(RBG0，1，2，…，11)，DCI的FDRA域共有12个比特为0011 0110 0111，即调度的PDSCH使用RBG2、3、5、6、9、10、11。假设RBG大小为4个PRB，PRG大小为2个PRB，那么一个RBG内可以包含2个PRG。这样，每个RBG内的第一个PRG属于第一个频域资源组，第二个PRG属于第二个频域资源组。
上述频域资源平均分组，或者部分频域资源组包括的频域资源数相同可以理解为，FDRA域指示的K个频域资源按规则划分为N段频域资源，每段频域资源一个频域资源组，划分的方式可默认频域资源平均分组或近似平均。例如：其中N-1个频域资源组包含
Figure PCTCN2020103309-appb-000001
个频域资源，有1个频域资源组包含剩余的mod(K/n)个频域资源。或者频域资源组划分在确定的边界上，频域资源组0和频域资源组N-1包含的频域资源数大于等于1且小于等于
Figure PCTCN2020103309-appb-000002
其他频域资源组包含的频域资源数等于
Figure PCTCN2020103309-appb-000003
进一步的，在频域资源平均分组的情况下或者在部分频域资源组包括的频域资源数相同的情况下，频域资源组内的频域资源是连续的或者非连续的。
需要说明的是，在上述实施方式，在PDSCH的FDRA为type 0时，优先以RBG/PRG为基本单位对应不同频域资源组，而在PDSCH的FDRA为type 1时，优先以VRB为基本单位对应不同频域资源组。
作为一种可选的实施方式，所述FDRA信息包括N个信息，所述N个信息分别用于指示所述N个频域资源组；
其中，所述N个信息为所述DCI中一个FDRA域内的N个信息，或者，所述N个信息为所述DCI中的N个FDRA域。
其中，上述指示所述N个频域资源组可以是指示N个频域资源组的频域资源，即频域资源组使用的频域资源。
该实施方式中，由于直接通过N个信息分别用于指示N个频域资源组， 从而可以灵活地进行各频域资源组的频域资源分配。
可选的，所述N个信息中的第j个信息用于指示第j个可用频域资源组中部分或者全部频域资源作为第j个频域资源组的频域资源；
其中，激活BWP包含的部分或全部频域资源可以分成N个可用频域资源组，j为1至N中任一整数。
进一步的，所述激活BWP包含的部分或全部频域资源可以按照第二比例以连续或非连续方式划分至所述N个可用频域资源组。
其中，上述第二比例可以与上述第一比例是相同或者不同的比例，用于确定所述激活BWP包含的部分或全部频域资源分配给N个可用频域资源组的频域资源数量，且激活BWP包含的部分或全部频域资源可以按照第二比例以连续或非连续方式划分至所述N个可用频域资源组可以参见上述K个频域资源按照第一比例以连续或非连续方式划分至所述M个频域资源组的实施方式，此处不作赘述。
另外，每个可用频域资源组的频域资源可以为网络侧配置或者协议约定。
该实施方式中，可以实现预先配置N个可用频域资源组，每个可用频域资源组包含一个或者多个可用频域资源，且这N个可用频域资源组与上述DCI指示的N个频域资源组是一一对应的，这样DCI在指示N个频域资源组的频域资源时，只需要在对应的可用频域资源组的可用频域资源中的指示即可，从而节约DCI的开销。
以RBG依次轮流对应一个频域资源组或者将BWP内的所有RBG分成n段为例。
假设在一个BWP上共有12个RBG(RBG0，1，2，…，11)，共需分成N＝2个可用频域资源组。若采用默认方式：RBG依次轮流对应一个可用频域资源组的方式，则RBG0、2、4、6、8、10对应第一个可用频域资源组，RBG1、3、5、7、9、11对应第二个可用频域资源组。
这样在FDRA为type 0时，DCI的第一个FDRA域可以通过6比特指示第一个频域资源组使用的RBG编号(例如100110指示使用RBG0、6、8)、第二个FDRA域也可以通过6比特于指示第二个频域组使用的RBG编号(例如100110指示使用RBG1、7、9)。此时，两个FDRA域总的比特数与原一 个FDRA信息的比特数相等。
在FDRA为type 1时，DCI的第j个FDRA域包括的资源指示值(Resource Indication Value，RIV)为
Figure PCTCN2020103309-appb-000004
个比特来指示第n个频域资源组使用的VRB的起始编号和长度，其中K′ j为第j个频域资源组可使用的部分RBG的RBG数量。
作为一种可选的实施方式，在预编码颗粒度大小配置为宽带(wideband)的情况下，所述通信设备期望任意一个空间信息指示对应的频域资源组为连续的频域资源，且假设任意一个空间信息指示对应的频域资源组的频域资源使用相同的预编码。
该实施方式中，对于终端来说可以是，如果预编码颗粒度大小确定为“wideband”，终端不期望对应于任意一个空间信息指示的频域资源组被调度为非连续的频域资源(例如：PRB)，并且终端可以假设对应于任意一个空间信息指示的频域资源组使用相同的预编码。
该实施方式中，对于网络设备来说可以是，如果预编码颗粒度大小确定为“wideband”，网络设备配置任意一个空间信息指示的频域资源组被调度为连续的频域资源(例如：PRB)，并且网络设备对应于任意一个空间信息指示的频域资源组使用相同的预编码。
由于期望任意一个空间信息指示对应的频域资源组为连续的频域资源，且假设任意一个空间信息指示对应的频域资源组的频域资源使用相同的预编码，从而可以降低通信设备传输PDSCH的复杂度。
本公开实施例中，传输DCI，所述DCI包括频域资源分配FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输物理下行共享信道PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。这样可以实现配置N组频域资源，从而避免PDSCH传输冲突。
请参见图3，图3是本公开实施例提供一种通信设备的结构图，如图3所示，通信设备300包括：
传输模块301，用于传输DCI，所述DCI包括FDRA信息，所述FDRA 信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
可选的，所述FDRA信息为一个FDRA域，且指示K个频域资源，所述K个频域资源分成M个频域资源组，其中，K为大于或者等于N的整数，M为大于或者等于1且小于或等于N的整数。
可选的，所述K个频域资源按照第一比例以连续或非连续方式划分至所述M个频域资源组。
可选的，当M小于N时，依据所述FDRA信息指示的M个频域资源组的频域资源和配置信息确定其余N-M个频域资源组的频域资源。
可选的，所述配置信息用于配置频域资源组之间的偏移量，且所述配置信息网络侧配置或者协议约定。
可选的，所述FDRA信息包括N个信息，所述N个信息分别用于指示所述N个频域资源组；
其中，所述N个信息为所述DCI中一个FDRA域内的N个信息，或者，所述N个信息为所述DCI中的N个FDRA域。
可选的，所述N个信息中的第j个信息用于指示第j个可用频域资源组中部分或者全部频域资源作为第j个频域资源组的频域资源；
其中，激活带宽部分BWP包含的部分或全部频域资源分成N个可用频域资源组，j为1至N中任一整数。
可选的，每个可用频域资源组的频域资源为网络侧配置或者协议约定。
可选的，所述激活BWP包含的部分或全部频域资源按照第二比例以连续或非连续方式划分至所述N个可用频域资源组。
可选的，在预编码颗粒度大小配置为宽带的情况下，所述通信设备期望任意一个空间信息指示对应的频域资源组为连续的频域资源，且假设任意一个空间信息指示对应的频域资源组的频域资源使用相同的预编码。
本公开实施例提供的通信设备能够实现图2的方法实施例中通信设备实现的各个过程，为避免重复，这里不再赘述，且可以支持FDM方式的多TRP传输。
图4为实现本公开各个实施例的一种通信设备的硬件结构示意图，本实施例中通信设备的结构图以终端的结构图进行举例说明。
该通信设备400包括但不限于：射频单元401、网络模块402、音频输出单元403、输入单元404、传感器405、显示单元406、用户输入单元407、接口单元408、存储器409、处理器410、以及电源411等部件。本领域技术人员可以理解，图4中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、机器人、可穿戴设备、以及计步器等。
射频单元401，用于传输DCI，所述DCI包括FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
可选的，所述FDRA信息为一个FDRA域，且指示K个频域资源，所述K个频域资源分成M个频域资源组，其中，K为大于或者等于N的整数，M为大于或者等于1且小于或等于N的整数。
可选的，所述K个频域资源按照第一比例以连续或非连续方式划分至所述M个频域资源组。
可选的，当M小于N时，依据所述FDRA信息指示的M个频域资源组的频域资源和配置信息确定其余N-M个频域资源组的频域资源。
可选的，所述配置信息用于配置频域资源组之间的偏移量，且所述配置信息网络侧配置或者协议约定。
可选的，所述FDRA信息包括N个信息，所述N个信息分别用于指示所述N个频域资源组；
其中，所述N个信息为所述DCI中一个FDRA域内的N个信息，或者，所述N个信息为所述DCI中的N个FDRA域。
可选的，所述N个信息中的第j个信息用于指示第j个可用频域资源组中部分或者全部频域资源作为第j个频域资源组的频域资源；
其中，激活带宽部分BWP包含的部分或全部频域资源分成N个可用频 域资源组，j为1至N中任一整数。
可选的，每个可用频域资源组的频域资源为网络侧配置或者协议约定。
可选的，所述激活BWP包含的部分或全部频域资源按照第二比例以连续或非连续方式划分至所述N个可用频域资源组。
可选的，在预编码颗粒度大小配置为宽带的情况下，所述通信设备期望任意一个空间信息指示对应的频域资源组为连续的频域资源，且假设任意一个空间信息指示对应的频域资源组的频域资源使用相同的预编码。
上述通信设备可以支持FDM方式的多TRP传输。
应理解的是，本公开实施例中，射频单元401可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器410处理；另外，将上行的数据发送给基站。通常，射频单元401包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元401还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块402为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元403可以将射频单元401或网络模块402接收的或者在存储器409中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元403还可以提供与终端400执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元403包括扬声器、蜂鸣器以及受话器等。
输入单元404用于接收音频或视频信号。输入单元404可以包括图形处理器(Graphics Processing Unit，GPU)4041和麦克风4042，图形处理器4041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元406上。经图形处理器4041处理后的图像帧可以存储在存储器409(或其它存储介质)中或者经由射频单元401或网络模块402进行发送。麦克风4042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元401发送到移动通信基站的格式输出。
终端400还包括至少一种传感器405，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板4061的亮度，接近传感器可在终端400移动到耳边时，关闭显示面板4061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器405还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元406用于显示由用户输入的信息或提供给用户的信息。显示单元406可包括显示面板4061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板4061。
用户输入单元407可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元407包括触控面板4071以及其他输入设备4072。触控面板4071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板4071上或在触控面板4071附近的操作)。触控面板4071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器410，接收处理器410发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板4071。除了触控面板4071，用户输入单元407还可以包括其他输入设备4072。具体地，其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板4071可覆盖在显示面板4061上，当触控面板4071检测到在其上或附近的触摸操作后，传送给处理器410以确定触摸事件的类型，随后处理器410根据触摸事件的类型在显示面板4061上提供相应的视觉 输出。虽然在图4中，触控面板4071与显示面板4061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板4071与显示面板4061集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元408为外部装置与终端400连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元408可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端400内的一个或多个元件或者可以用于在终端400和外部装置之间传输数据。
存储器409可用于存储软件程序以及各种数据。存储器409可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器409可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器410是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器409内的软件程序和/或模块，以及调用存储在存储器409内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器410可包括一个或多个处理单元；可选的，处理器410可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器410中。
终端400还可以包括给各个部件供电的电源411(比如电池)，可选的，电源411可以通过电源管理系统与处理器410逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端400包括一些未示出的功能模块，在此不再赘述。
可选的，本公开实施例还提供一种终端，包括处理器410，存储器409，存储在存储器409上并可在所述处理器410上运行的计算机程序，该计算机 程序被处理器410执行时实现上述DCI传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现本公开实施例提供的DCI传输方法，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (14)

  1. 一种下行控制信息DCI传输方法，应用于通信设备，包括：
    传输DCI，所述DCI包括频域资源分配FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输物理下行共享信道PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
  2. 如权利要求1所述的方法，其中，所述FDRA信息为一个FDRA域，且指示K个频域资源，所述K个频域资源分成M个频域资源组，其中，K为大于或者等于N的整数，M为大于或者等于1且小于或等于N的整数。
  3. 如权利要求2所述的方法，其中，所述K个频域资源按照第一比例以连续或非连续方式划分至所述M个频域资源组。
  4. 如权利要求3所述的方法，其中，所述K个频域资源平均分配至M个频域资源组，连续的K/M个频域资源划分为一个频域资源组，或者，将K个频域资源依次轮流划分至M个频域资源组。
  5. 如权利要求2所述的方法，其中，当M小于N时，依据所述FDRA信息指示的M个频域资源组的频域资源和配置信息确定其余N-M个频域资源组的频域资源。
  6. 如权利要求5所述的方法，其中，所述配置信息用于配置频域资源组之间的偏移量，且所述配置信息网络侧配置或者协议约定。
  7. 如权利要求1所述的方法，其中，所述FDRA信息包括N个信息，所述N个信息分别用于指示所述N个频域资源组；
    其中，所述N个信息为所述DCI中一个FDRA域内的N个信息，或者，所述N个信息为所述DCI中的N个FDRA域。
  8. 如权利要求7所述的方法，其中，所述N个信息中的第j个信息用于指示第j个可用频域资源组中部分或者全部频域资源作为第j个频域资源组的频域资源；
    其中，激活带宽部分BWP包含的部分或全部频域资源分成N个可用频域资源组，j为1至N中任一整数。
  9. 如权利要求8所述的方法，其中，每个可用频域资源组的频域资源为网络侧配置或者协议约定。
  10. 如权利要求8所述的方法，其中，所述激活BWP包含的部分或全部频域资源按照第二比例以连续或非连续方式划分至所述N个可用频域资源组。
  11. 如权利要求1至10中任一项所述的方法，其中，在预编码颗粒度大小配置为宽带的情况下，所述通信设备期望任意一个空间信息指示对应的频域资源组为连续的频域资源，且假设任意一个空间信息指示对应的频域资源组的频域资源使用相同的预编码。
  12. 一种通信设备，包括：
    传输模块，用于传输DCI，所述DCI包括FDRA信息，所述FDRA信息用于确定N个频域资源组，所述N个频域资源组为所述通信设备传输PDSCH使用的N组频域资源，且所述N个频域资源组分别对应N个空间信息指示，N为大于或者等于2的整数。
  13. 一种通信设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至11中任一项所述的DCI传输方法中的步骤。
  14. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至11中任一项所述的DCI传输方法中的步骤。
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CN111818646A (zh) 2020-10-23
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JP2022542999A (ja) 2022-10-07
US20220150720A1 (en) 2022-05-12
CN111818646B (zh) 2021-09-24
EP4007408A1 (en) 2022-06-01

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