WO2021017948A1 - Dci传输方法和通信设备 - Google Patents
Dci传输方法和通信设备 Download PDFInfo
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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
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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
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- 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
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- 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
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- H04W72/12—Wireless traffic scheduling
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- 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
Description
Claims (14)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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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JP2022506261A JP7303373B2 (ja) | 2019-07-30 | 2020-07-21 | Dci伝送方法及び通信機器 |
KR1020227006640A KR20220042411A (ko) | 2019-07-30 | 2020-07-21 | Dci의 전송 방법 및 통신 장치 |
US17/586,341 US20220150720A1 (en) | 2019-07-30 | 2022-01-27 | Dci transmission method and communication device |
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US20240023098A1 (en) * | 2020-11-27 | 2024-01-18 | Nec Corporation | Method, device and computer storage medium of communication |
US20240072981A1 (en) * | 2021-01-07 | 2024-02-29 | Lenovo (Beijing) Limited | Downlink control information having a transmission configuration indicator bitmap |
WO2023193279A1 (zh) * | 2022-04-08 | 2023-10-12 | 北京小米移动软件有限公司 | 频域资源配置方法及装置 |
WO2023211080A1 (ko) * | 2022-04-27 | 2023-11-02 | 엘지전자 주식회사 | 무선 통신 시스템에서 다중 반송파 스케줄링을 수행하기 위한 장치 및 방법 |
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US20220150720A1 (en) | 2022-05-12 |
EP4007408A1 (en) | 2022-06-01 |
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EP4007408A4 (en) | 2022-09-07 |
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