WO2025166751A1 - 信道状态信息的上报方法以及装置 - Google Patents

信道状态信息的上报方法以及装置

Info

Publication number
WO2025166751A1
WO2025166751A1 PCT/CN2024/077006 CN2024077006W WO2025166751A1 WO 2025166751 A1 WO2025166751 A1 WO 2025166751A1 CN 2024077006 W CN2024077006 W CN 2024077006W WO 2025166751 A1 WO2025166751 A1 WO 2025166751A1
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WO
WIPO (PCT)
Prior art keywords
csi
basis vector
spatial basis
codebook
reports
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/077006
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English (en)
French (fr)
Other versions
WO2025166751A9 (zh
Inventor
卢艺文
张健
王昕�
王国童
赵帝
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Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/CN2024/077006 priority Critical patent/WO2025166751A1/zh
Publication of WO2025166751A1 publication Critical patent/WO2025166751A1/zh
Publication of WO2025166751A9 publication Critical patent/WO2025166751A9/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/28Cell structures using beam steering

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • the 5G Rel-19 standardization supports the enhancement of up to 128 antenna ports and/or digital ports.
  • CSI Channel State Information
  • CSI measurement reporting only supports the reception, measurement and reporting of CSI-RS (channel state information reference signal) resources for up to 32 ports. Therefore, the current CSI measurement reporting mechanism cannot support CSI measurement reporting for up to 128 ports, so that the base station side cannot fully obtain accurate channel state information of a larger number of antenna arrays.
  • CSI-RS channel state information reference signal
  • the terminal device receives a channel state information (CSI) reporting setting, where the CSI reporting setting includes at least codebook configuration information in the first measurement mode;
  • CSI channel state information
  • the terminal device performs CSI reporting according to the CSI reporting setting, and the reporting amount of the CSI report includes at least a precoding matrix index (PMI).
  • PMI precoding matrix index
  • a channel state information reporting device which is configured in a terminal device, and includes:
  • a receiving unit configured to receive a channel state information (CSI) reporting setting, wherein the CSI reporting setting includes at least codebook configuration information in a first measurement mode;
  • CSI channel state information
  • One of the beneficial effects of the embodiments of the present application is that: according to the embodiments of the present application, when the network device adjusts the antenna configuration, by enhancing the CSI reporting settings, the terminal device can perform CSI measurements efficiently and accurately.
  • FIG1 is a schematic diagram of port grouping when there are 32 ports
  • FIG2 is a schematic diagram of a method for reporting channel state information according to an embodiment of the present application.
  • FIG3 is a schematic diagram of a method for configuring channel state information according to an embodiment of the present application.
  • FIG4 is a schematic diagram of a device for reporting channel state information according to an embodiment of the present application.
  • FIG5 is a schematic diagram of a device for configuring channel state information according to an embodiment of the present application.
  • FIG6 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG7 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • FIG8 is a schematic diagram of a network device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms.
  • the term “and/or” includes any one and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.
  • the term “communication network” or “wireless communication network” may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), etc.
  • LTE Long Term Evolution
  • LTE-A enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • communication between devices in the communication system may be carried out according to communication protocols of any stage, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 4G 4G
  • 4.5G and 5G 3G
  • NR New Radio
  • future 6G etc.
  • communication protocols currently known or to be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network devices may include but are not limited to the following devices: base station (BS), access point (AP), transmission reception point (TRP), and so on. Point), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.
  • base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host, etc., and may also include remote radio heads (RRH, Remote Radio Head), remote radio units (RRU, Remote Radio Unit), relays or low-power nodes (such as femeto, pico, etc.).
  • NodeB NodeB
  • eNodeB or eNB evolved NodeB
  • gNB 5G base station
  • IAB host etc.
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relays or low-power nodes such as femeto, pico, etc.
  • base station can include some or all of their functions. Each base station can provide communication coverage for a specific geographical area.
  • the term “cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE) or “terminal equipment” (TE) refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.
  • terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.
  • PDAs personal digital assistants
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • machine-type communication devices laptop computers
  • cordless phones smart phones
  • smart watches digital cameras
  • the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminals, vehicle-mounted communication terminals, device-to-device (D2D) terminals, machine-to-machine (M2M) terminals, and the like.
  • MTC machine type communication
  • D2D device-to-device
  • M2M machine-to-machine
  • terminal devices In mobile communication systems, terminal devices typically measure CSI according to instructions and configurations from network devices and then report the measured CSI to the network devices. When scheduling the terminal devices, the network devices can refer to this CSI to schedule the terminal devices for transmission using the appropriate physical resources and transmission method. Different terminal devices may experience different physical channel conditions. The use of the CSI feedback mechanism can reasonably and effectively utilize physical resources, thereby improving the efficiency of the entire network transmission.
  • the terminal device mainly measures the reference signal based on the CSI configuration and reports the measurement results.
  • the reference signal includes CSI-RS and SSB.
  • the NR CSI configuration is mainly divided into two parts. One is that the network device configures the reference signal resources for CSI measurement for the terminal device (CSI-RS resource configuration), and the other is how the network device configures the terminal device to report (CSI reporting configuration).
  • CSI-RS resource configuration the network device configures the reference signal resources for CSI measurement for the terminal device
  • CSI reporting configuration The principles of these two configurations are relatively simple, but the specific details in the protocol are relatively complex. Only the details related to this application are introduced here.
  • the CSI-RS resource setting can be used for interference measurement and CSI channel measurement.
  • Each resource setting contains S resource sets.
  • Each resource set contains Ks CSI-RS resources.
  • Aperiodic resource settings can contain one or more resource sets.
  • Periodic and semi-persistent resource settings can contain only one resource set when used for CSI acquisition.
  • Ks 1. This is mainly because the computational complexity of Type II is relatively large and poses a greater computational challenge to the terminal device. Therefore, the NR system reduces the computational complexity of the terminal device by limiting the value of Ks.
  • a CSI report consists of two parts: Part 1 and Part 2.
  • Part 1 (CSI Part 1) has a fixed payload size and indicates the number of information bits in Part 2 (CSI Part 2).
  • CSI Part 1 (CSI Part 1) has a fixed payload size and indicates the number of information bits in Part 2 (CSI Part 2).
  • the reported content is specified as follows based on the codebook type:
  • Type I CSI part 1 includes RI (Rank Indicator)/CRI (CSI-RS Resource Indicator) and the CQI (Channel Quality Indicator) of the first CW (codeword); part 2 includes LI (Layer Indicator) and PMI (Precoding Matrix Indicator), and when the rank is greater than 4, it also includes the CQI of the second CW.
  • RI Rank Indicator
  • CQI Channel Quality Indicator
  • LI Layer Indicator
  • PMI Precoding Matrix Indicator
  • Type II CSI Part 1 includes RI, CQI, and the number of non-zero wideband amplitude coefficients per layer; Part 2 includes LI and PMI.
  • CSI-RS resources used for channel measurement only support a maximum of 32 ports. This can be configured using the nofports field in the nzp-CSI-Resource field of RRC (Radio Resource Control) signaling.
  • RRC Radio Resource Control
  • the CSI reporting settings include the reported CSI parameters (report quantity), CSI type (Type I or Type II), codebook parameter configuration, CSI reporting time domain behavior, frequency domain granularity of PMI and CQI, measurement constraint configuration, and CSI reporting frequency band.
  • CSI parameters (report quantity) supported by NR include: 'none', 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', 'ssb-Index-SINR' or 'cri-RI-LI-PMI-CQI';
  • CSI types include: 'typeI Single-Panel', 'typeI Multi-Panel', 'typeII', 'typeII-PortSelection', 'typeII-r16', 'typeII-PortSelection-r16', 'typeII-PortSelection-r17'.
  • N 1 O 1 N 2 O 2 2D DFT beams there are N 1 O 1 N 2 O 2 2D DFT beams.
  • (s 1 ,s 2 ) represents the offset between beam groups
  • the parameters (p 1 , p 2 ) represent the beam offset within a beam group.
  • L 1 (L is the number of spatial basis vectors)
  • Mode 1 has a subband overhead of 2 bits per subband
  • Mode 2 has a subband overhead of 4 bits per subband.
  • the LTE Class A codebook design is used, and for ports 16 and above, the antenna port grouping design is used.
  • Figure 1 illustrates port grouping for a 32-port configuration. As shown in Figure 1, ports for each polarization are divided into two groups, with each group performing independent beam selection and phase adjustment. Inter-group phase adjustment is used between antenna groups, and inter-polarization phase adjustment is used between polarizations. Port grouping enables wider beams for better coverage.
  • inter-layer orthogonality is achieved by selecting orthogonal beams.
  • inter-layer orthogonality is achieved by phase adjustment between groups and between polarizations.
  • Type I multi-panel (Type I MP) codebook For Type I multi-panel (Type I MP) codebook.
  • the Type I MP codebook is constructed based on the Type I SP codebook and is derived by introducing an inter-panel phase adjustment factor between the Type I SP codebooks. This inter-panel phase adjustment factor can use wideband feedback or wideband + subband feedback.
  • the Type I MP codebook supports ranks 1 to 4. The supported antenna structures and codebook parameter configurations are shown in the following table:
  • Ng represents the number of panels.
  • the codebook part corresponding to each panel in each polarization direction of each layer is expressed as:
  • the inter-panel phase adjustment factor can be configured in low-overhead mode (Mode 1) or high-overhead mode (Mode 2).
  • Mode 1 is a wideband inter-panel phase adjustment factor, supporting two or four panels.
  • the feedback overhead of the phase adjustment factor is 2 bits per subband.
  • Mode 2 is a subband inter-panel phase adjustment factor, supporting only two panels. In this case, the feedback overhead of the phase adjustment factor is 4 bits per subband.
  • CSI measurement reporting only supports CSI-RS resource reception, measurement, and CSI information reporting for up to 32 ports. Therefore, the current CSI measurement reporting mechanism cannot support CSI measurement reporting for up to 128 ports, and thus the base station side cannot fully obtain accurate CSI channel state information for a larger number of antenna arrays. Furthermore, expanding the existing CSI measurement reporting framework is also very challenging, especially with the exponentially increased CSI reporting and feedback caused by the expansion of antenna ports. Therefore, the current standard urgently needs to make a series of enhancements to the existing standard solution.
  • FIG2 is a schematic diagram of the method for reporting channel state information according to an embodiment of the present invention. As shown in FIG2 , the method includes:
  • the terminal device receives a channel state information (CSI) reporting setting, where the CSI reporting setting includes at least codebook configuration information in a first measurement mode;
  • CSI channel state information
  • the terminal device performs CSI reporting according to the CSI reporting setting, and the reporting amount of the CSI report includes at least a precoding matrix index (PMI).
  • PMI precoding matrix index
  • FIG2 above is only a schematic illustration of an embodiment of the present application, and the present application is not limited thereto.
  • other operations may be added or some operations may be reduced.
  • Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG2 above.
  • the C CSI reporting setting is enhanced, which enables the terminal device to perform CSI measurement efficiently and accurately.
  • the terminal device may also receive a CSI resource configuration including at least one CSI-RS resource set for channel measurement.
  • the CSI-RS resource set may include K resources (measurement signal resources, also referred to as CSI-RS resources).
  • the above CSI reporting configuration is related to the above CSI-RS resource configuration.
  • the associated CSI-RS resource configuration is configured in the CSI-reportConfig reporting configuration field of the RRC high-layer signaling.
  • the terminal device may perform a PMI and CQI measurement using X CSI-RS resources.
  • Each CSI-RS resource may include Z antenna ports, and the number of antenna ports of each CSI-RS resource may be equal.
  • the CSI-RS resource configuration and/or CSI reporting setting may be sent via RRC signaling, and this application does not impose any limitation on the specific implementation manner.
  • the first measurement mode is configured by the network device through RRC signaling.
  • the configuration can be performed by adding a new field in the RRC signaling.
  • the newly added field is, for example, a codebook configuration field, for example, called Codebookcconfig-r19.
  • the codebook configuration field may include a codebook type, for example, called codebookType, and the codebook type may include at least one of the following:
  • the codebook type includes X codebook parameter groups, for example, 'typeI-SinglePanel-Group1-r17' ... 'typeI-SinglePanel-GroupX-r17'.
  • the terminal device may also receive X spatial domain basis vector configuration parameters Lx, where the spatial domain basis vector configuration parameter Lx is the number of spatial basis vectors corresponding to the x-th CSI-RS resource, 1 ⁇ x ⁇ X, and X is a positive integer greater than or equal to 1.
  • the terminal device reports CSI using codebook parameters i 1,1,x and i 1,2,x , that is, reporting the selection results of the L spatial basis vectors based on each CSI-RS resource.
  • the terminal device reports CSI using codebook parameters i 1,1 and i 1,2,x , that is, reporting the selection results of the L spatial basis vectors based on each CSI-RS resource.
  • the CSI reporting can be broadband reporting.
  • the terminal device calculates and reports X*L spatial basis vector selection results based on all CSI-RS resources.
  • the terminal device reports CSI via i 1,1 and i 1,2 , that is, reports the selection results of the L spatial basis vectors based on all CSI-RS resources.
  • the CSI reporting can be broadband reporting.
  • the terminal device may divide all antenna ports of the CSI-RS resource into Y groups, and calculate and report the selection results of L spatial basis vectors for one group based on the CSI-RS resources.
  • the terminal device can use the codebook parameter i 1,3,Y-1 to report the relative offset value (offset) and/or relative phase correlation value (co-phasing) of other groups for the above-mentioned group 1.
  • the reporting of the above-mentioned relative offset value and/or relative phase correlation value can be broadband reporting or sub-band reporting.
  • the terminal device calculates and reports an optimal basis vector from the Lx spatial basis vector selection results for the wideband or subband according to each CSI-RS resource.
  • the terminal device may report the CSI of each layer using the codebook parameter i 2,x , that is, report the selected optimal basis vector for each layer.
  • the terminal device may report using 1 to 4 bits.
  • the terminal device may report the CSI of each layer using the codebook parameter i 2 , that is, report the selected optimal basis vector for each layer.
  • the terminal device may report using 1 to 4 bits.
  • the terminal device reports the CSI of one layer using the codebook parameter i 2,1 , and reports the relative phase correlation value (co-phasing) of the spatial basis vector selection result of other layers relative to the above-mentioned layer using the codebook parameter i 2,2 .
  • the terminal device can perform the above reporting using 2-bit QPSK or 4-bit 16PSK.
  • the terminal device can perform CSI measurement efficiently and accurately.
  • An embodiment of the present application provides a method for configuring channel state information, which is explained from the perspective of a network device, and the contents that are the same as those in the embodiment of the first aspect are not repeated here.
  • FIG3 is a schematic diagram of a method for configuring channel state information according to an embodiment of the present application. As shown in FIG3 , the method includes:
  • the network device sends a channel state information (CSI) reporting setting to the terminal device.
  • the CSI reporting setting At least including codebook configuration information in the first measurement mode;
  • the network device receives the CSI report sent by the terminal device according to the CSI reporting configuration, where the reporting amount of the CSI report includes at least a precoding matrix index (PMI).
  • PMI precoding matrix index
  • FIG3 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto.
  • other operations may be added or some operations may be reduced.
  • Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG3 above.
  • the network device may configure the first measurement mode through RRC signaling.
  • the RRC signaling includes a codebook configuration field (Codebookcconfig-r19), the codebook configuration field (Codebookcconfig-r19) includes a codebook type (codebookType), and the codebook type (codebookType) includes at least one of the following:
  • the network device may further send X spatial basis vector configuration parameters Lx to the terminal device, where Lx is the number of spatial basis vectors corresponding to the x-th CSI-RS resource, where 1 ⁇ x ⁇ X, and X is a positive integer greater than or equal to 1.
  • the network device may receive 1 group of Lx spatial basis vector selection results calculated and reported by the terminal device according to each CSI-RS resource after all antenna ports of the CSI-RS resources are divided into Y groups.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the network device may also send one spatial basis vector configuration parameter L to the terminal device, where L is the number of spatial basis vectors and is a positive integer greater than or equal to 1.
  • the network device may receive 1 group of L spatial basis vector selection results calculated and reported according to each CSI-RS resource after the terminal device divides all antenna ports of the CSI-RS resources into Y groups.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the network device may further receive an optimal basis vector from the Lx spatial basis vector selection results for the wideband or subband, calculated and reported by the terminal device based on each CSI-RS resource.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the network device may further receive an optimal basis vector from L spatial basis vector selection results for a wideband or subband calculated and reported by the terminal device based on all CSI-RS resources.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the terminal device can perform CSI measurement efficiently and accurately.
  • the embodiment of the present application provides a channel state information reporting device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated.
  • a receiving unit 410 configured to receive a channel state information (CSI) reporting setting, wherein the CSI reporting setting includes at least codebook configuration information in a first measurement mode;
  • the processing unit 420 performs CSI reporting according to the CSI reporting configuration, where a reporting amount of the CSI report includes at least a precoding matrix index (PMI).
  • PMI precoding matrix index
  • the RRC signaling may include a codebook configuration field (Codebookcconfig-r19), the codebook configuration field (Codebookcconfig-r19) includes a codebook type (codebookType), and the codebook type (codebookType) includes at least one of the following:
  • the codebook type may include X codebook subset restrictions, and the xth codebook subset restriction parameter is 'n1-n2-codebookSubsetRestrictionx-r19'; or, the codebook type may include 1 codebook subset restriction, and the codebook subset restriction parameter is 'n1-n2-codebookSubsetRestriction-r19'.
  • the codebook type may include X codebook parameter groups, wherein each codebook parameter group corresponds to one codebook subset restriction; or, all codebook parameter groups correspond to one codebook subset restriction.
  • the receiving unit 410 receives X spatial basis vector configuration parameters Lx, where Lx is the number of spatial basis vectors corresponding to the x-th CSI-RS resource, where 1 ⁇ x ⁇ X, and X is a positive integer greater than or equal to 1.
  • the values of the spatial basis vector configuration parameters Lx may be the same.
  • the processing unit 420 may calculate and report the selection results of Lx spatial basis vectors based on each CSI-RS resource according to each CSI-RS resource.
  • the processing unit 420 reports CSI using the codebook parameters i 1,1,x and i 1,2,x ; or, the processing unit 420 reports CSI using the codebook parameters i 1,1 and i 1,2,x .
  • the processing unit 420 may calculate and report X*Lx spatial basis vector selection results according to all CSI-RS resources.
  • the processing unit 420 reports CSI using codebook parameters i 1,1,x and i 1,2,x ; or, the processing unit 420 reports CSI through codebook parameters i 1,1 and i 1,2 ; or, the processing unit 420 reports CSI through codebook parameters i 1,1,x and i 1,2 ; or, the processing unit 420 reports CSI through codebook parameters i 1,1 and i 1,2,x .
  • the processing unit 420 can calculate and report Lx spatial basis vector selection results and X-1 relative offset values (offset) and/or relative phase correlation values (co-phasing) relative to the Lx spatial basis vector selection results based on all CSI-RS resources.
  • the processing unit 420 reports CSI through codebook parameters i 1,1 and i 1,2 ; or, the processing unit 420 reports the relative offset value and/or relative phase correlation value through codebook parameters i 1,3,x and i 1,4,x .
  • the processing unit 420 may calculate and report Lx spatial basis vector selection results according to all CSI-RS resources.
  • the processing unit 420 reports CSI using codebook parameters i 1,1 and i 1,2 .
  • the receiving unit 410 receives one spatial basis vector configuration parameter L, where L is the number of spatial basis vectors and is a positive integer greater than or equal to 1.
  • the processing unit 420 may calculate and report the L spatial basis vector selection results based on each CSI-RS resource according to each CSI-RS resource.
  • the processing unit 420 reports CSI using the codebook parameters i 1,1,x and i 1,2,x ; or, the processing unit 420 reports CSI using the codebook parameters i 1,1 and i 1,2,x .
  • the processing unit 420 may also calculate and report X*L spatial basis vector selection results according to all CSI-RS resources.
  • the processing unit 420 reports CSI through the codebook parameters i 1,1,x and i 1,2,x ; or, the processing unit 420 reports CSI through the codebook parameters i 1,1 and i 1,2 ; or, the processing unit 420 reports CSI through the codebook parameters i 1,1,x and i 1,2 ; or, the processing unit 420 reports CSI through the codebook parameters i 1,1 and i 1,2,x .
  • the processing unit 420 reports CSI through codebook parameters i 1,1 and i 1,2 ; or, the processing unit 420 reports the relative offset value and/or relative phase correlation value through codebook parameters i 1,3,x and i 1,4,x .
  • the processing unit 420 may further calculate and report L spatial basis vector selection results according to all CSI-RS resources.
  • the processing unit 420 reports CSI through i 1,1 and i 1,2 .
  • the processing unit 420 reports the CSI of each layer using the codebook parameter i 2,x .
  • the processing unit 420 calculates and reports an optimal basis vector among L spatial basis vector selection results for the wideband or subband according to all CSI-RS resources.
  • the processing unit 420 reports the CSI of one layer through the codebook parameter i 2,1 , and reports the relative phase correlation values (co-phasing) of the spatial basis vector selection results of other layers relative to the one layer through the codebook parameter i 2,2 .
  • the channel state information reporting device 400 may also include other components or modules. For the specific contents of these components or modules, reference may be made to related technologies.
  • the embodiment of the present application provides a device for configuring channel state information.
  • the device may be, for example, a network device, or one or more components or assemblies configured on the network device.
  • the contents that are the same as those in the first and second aspects of the embodiment are not repeated here.
  • FIG5 is a schematic diagram of a channel state information configuration device according to an embodiment of the present application.
  • the channel state information configuration device 500 according to an embodiment of the present application includes:
  • a sending unit 510 configured to send a channel state information (CSI) reporting setting to a terminal device, the CSI reporting setting including at least codebook configuration information in a first measurement mode;
  • CSI channel state information
  • the apparatus 500 further includes:
  • the configuration unit 530 is configured to configure the first measurement mode through RRC signaling.
  • the RRC signaling includes a codebook configuration field (Codebookcconfig-r19), the codebook configuration field (Codebookcconfig-r19) includes a codebook type (codebookType), and the codebook type (codebookType) includes at least one of the following:
  • the receiving unit 520 may also receive Lx spatial basis vector selection results based on each CSI-RS resource calculated and reported by the terminal device according to each CSI-RS resource.
  • the receiving unit 520 may also receive X*Lx spatial basis vector selection results calculated and reported by the terminal device according to all CSI-RS resources.
  • the receiving unit 520 may also receive Lx spatial basis vector selection results calculated and reported by the terminal device according to all CSI-RS resources and X-1 relative offset values and/or relative phase correlation values relative to the Lx spatial basis vector selection results.
  • the receiving unit 520 may also receive Lx spatial basis vector selection results calculated and reported by the terminal device according to all CSI-RS resources.
  • the receiving unit 520 may receive 1 group of Lx spatial basis vector selection results calculated and reported according to each CSI-RS resource after the terminal device divides all antenna ports of the CSI-RS resource into Y groups.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the sending unit 510 may also send one spatial basis vector configuration parameter L to the terminal device, where L is the number of spatial basis vectors and is a positive integer greater than or equal to 1.
  • the receiving unit 520 may also receive L spatial basis vector selection results based on each CSI-RS resource calculated and reported by the terminal device according to each CSI-RS resource.
  • the receiving unit 520 may also receive X*L spatial basis vector selection results calculated and reported by the terminal device according to all CSI-RS resources.
  • the receiving unit 520 may also receive L spatial basis vector selection results calculated and reported by the terminal device according to all CSI-RS resources and X-1 relative offset values and/or relative phase correlation values relative to the L spatial basis vector selection results.
  • the receiving unit 520 may also receive L spatial basis vector selection results calculated and reported by the terminal device according to all CSI-RS resources.
  • the receiving unit 520 may receive 1 group of L spatial basis vector selection results calculated and reported by the terminal device according to each CSI-RS resource after all antenna ports of the CSI-RS resources are divided into Y groups.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the receiving unit 520 may further receive an optimal basis vector from the Lx spatial basis vector selection results for the wideband or subband, calculated and reported by the terminal device based on each CSI-RS resource.
  • the codebook parameters used by the terminal device for the above reporting have been described in the embodiment of the first aspect and are not further described here.
  • the receiving unit 520 may also receive an optimal basis vector from the L spatial basis vector selection results of the broadband or subband calculated and reported by the terminal device based on all CSI-RS resources.
  • the codebook parameters used for the above-mentioned reporting have been described in the embodiment of the first aspect and will not be repeated here.
  • the channel state information configuration device 500 may also include other components or modules. For the specific contents of these components or modules, reference may be made to related technologies.
  • FIG5 only illustrates the connection relationship or signal path between various components or modules.
  • various related technologies such as bus connection can be used.
  • the above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; this application is not limited to this.
  • the terminal device can perform CSI measurements efficiently and accurately.
  • An embodiment of the present application also provides a communication system, which includes a network device and a terminal device.
  • FIG6 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example.
  • a communication system 600 may include a network device 601 and terminal devices 602 and 603.
  • FIG6 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.
  • existing services or future services can be transmitted between the network device 601 and the terminal devices 602 and 603.
  • these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC ultra-reliable and low-latency communication
  • FIG6 shows that both terminal devices 602 and 603 are within the coverage of network device 601, but the present application is not limited thereto. Both terminal devices 602 and 603 may not be within the coverage of network device 601, or one terminal device 602 may be within the coverage of network device 601 while the other terminal device 603 is outside the coverage of network device 601.
  • the terminal device includes the apparatus described in the embodiment of the third aspect, and is configured to perform the method described in the embodiment of the first aspect. Since the method has been described in detail in the embodiment of the first aspect, its content is incorporated herein and will not be repeated.
  • the network device includes the apparatus described in the embodiment of the fourth aspect, and is configured to perform the method described in the embodiment of the second aspect. Since the method has been described in detail in the embodiment of the second aspect, its content is incorporated herein and will not be repeated.
  • An embodiment of the present application further provides a terminal device, which may be, for example, a UE, but the present application is not limited thereto and may also be other devices.
  • a terminal device which may be, for example, a UE, but the present application is not limited thereto and may also be other devices.
  • Figure 7 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • terminal device 700 may include a processor 710 and a memory 720.
  • Memory 720 stores data and programs and is coupled to processor 710. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.
  • the processor 710 may be configured to execute a program to implement the method described in the embodiment of the first aspect.
  • the terminal device 700 may further include: a communication module 730, an input unit 740, a display 750, and a power supply 760.
  • the functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 700 does not necessarily include all of the components shown in Figure 7 , and these components are not essential. Furthermore, the terminal device 700 may also include components not shown in Figure 7 , for which reference may be made to the prior art.
  • An embodiment of the present application further provides a network device, which may be a gNB, for example, but the present application is not limited thereto and may also be other network devices.
  • a network device which may be a gNB, for example, but the present application is not limited thereto and may also be other network devices.
  • FIG 8 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application.
  • network device 800 may include a processor 810 (e.g., a central processing unit (CPU)) and a memory 820 ; the memory 820 is coupled to the processor 810 .
  • the memory 820 may store various data and may also store an information processing program 830 , which is executed under the control of the processor 810 .
  • the processor 810 may be configured to execute a program to implement the method as described in the embodiment of the second aspect.
  • network device 800 may further include: a transceiver 840 and an antenna 850, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 800 does not necessarily include all the components shown in FIG8 ; in addition, network device 800 may also include components not shown in FIG8 , and reference may be made to the prior art for details.
  • the embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, The program enables the terminal device to execute the method described in the embodiment of the first aspect.
  • An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method described in the embodiment of the first aspect.
  • An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method described in the embodiment of the second aspect.
  • An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method described in the embodiment of the second aspect.
  • the above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software.
  • the present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.
  • the method/device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figure and/or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules.
  • These software modules can respectively correspond to the various steps shown in the figure.
  • These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).
  • FPGA field programmable gate array
  • the software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor.
  • the processor and the storage medium may be located in an ASIC.
  • the software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.
  • One or more of the functional blocks and/or one or more combinations of functional blocks described in the drawings may be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any appropriate combination thereof for performing the functions described in this application.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • One or more of the functional blocks and/or one or more combinations of functional blocks described in the drawings may also be implemented as a combination of computing devices. For example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a method for configuring channel state information comprising:
  • the network device sends a channel state information (CSI) reporting setting to the terminal device, where the CSI reporting setting includes at least codebook configuration information in the first measurement mode;
  • CSI channel state information
  • the network device receives the CSI report performed by the terminal device according to the CSI reporting setting, and the reporting amount of the CSI report includes at least a precoding matrix index (PMI).
  • PMI precoding matrix index
  • the first measurement mode is configured by the network device through RRC signaling
  • the RRC signaling includes a codebook configuration field (Codebookcconfig-r19), the codebook configuration field (Codebookcconfig-r19) includes a codebook type (codebookType), and the codebook type (codebookType) includes at least one of the following:
  • the codebook type includes X codebook parameter groups.
  • Each codebook parameter group corresponds to one codebook subset restriction; or,
  • All codebook parameter groups correspond to one codebook subset restriction.
  • the terminal device receives X spatial basis vector configuration parameters Lx, where Lx is the number of spatial basis vectors corresponding to the x-th CSI-RS resource, where 1 ⁇ x ⁇ X, and X is a positive integer greater than or equal to 1;
  • the values of the spatial basis vector configuration parameters Lx are the same; or,
  • the terminal device calculates and reports an optimal basis vector among the Lx spatial basis vector selection results of the broadband or subband according to each CSI-RS resource, wherein,
  • the terminal device reports the CSI of each layer through the codebook parameter i 2,x .
  • the terminal device calculates and reports an optimal basis vector among L spatial basis vector selection results of the broadband or subband according to all CSI-RS resources, wherein,
  • the terminal device reports the CSI of each layer through the codebook parameter i 2 .
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 1 to 7.
  • a communication system comprising a network device and a terminal device, wherein the network device is configured to execute the method described in any one of Notes 1 to 7, and the terminal device is configured to receive the CSI reporting setting sent by the network device, and perform CSI reporting according to the CSI reporting setting, and the reporting amount of the CSI report includes at least PMI.

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Abstract

本申请实施例提供一种信道状态信息的上报方法以及装置。该方法包括:终端设备接收信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;所述终端设备根据所述CSI上报设置进行CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。根据本申请实施例,当网络设备对天线配置进行调整的时候,通过对CSI上报设置进行增强,能够使得终端设备高效、准确地进行CSI测量。

Description

信道状态信息的上报方法以及装置 技术领域
本申请实施例涉及通信技术领域。
背景技术
随着5G(第五代移动通信系统)在各行各业的普及和在更多地理区域的应用,为了处理更先进的服务,需要非常高的数据速率和更加密集的网络,5G基站侧目前大力考虑使用更多数量的天线,更大维度的天线阵列。在大力扩展的可使用新频段中,更大维度的天线阵列可以增强波束覆盖,也同时可以服务更多用户的数据需求。
因此,5G Rel-19版本的标准化工作中,支持增强最多128天线端口和/或数字端口的增强。为辅助基站更准确地发送数据,信道状态信息(Channel State Information,CSI)的上报与获取是至关重要的。
应该注意,上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明,并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现,在目前的5G传统网络中,CSI测量上报仅支持最多32端口的CSI-RS(信道状态信息参考信号)资源接收,测量以及CSI的上报。因此,目前的CSI测量上报机制并不能支持最多128端口的CSI测量上报,从而基站侧不能完全获取更多数量天线阵列的准确的信道状态信息。此外,针对现有的CSI测量上报框架的扩展也是十分具有挑战性的,尤其是随着天线端口的扩展而导致的成倍增强的CSI上报和反馈开销。因此,目前标准急需对现有标准方案进行一系列的增强。
针对上述问题至少之一或其他类似问题,本申请实施例提供一种信道状态信息的上报方法以及装置,以便终端设备能够高效且准确地进行CSI测量。
根据本申请实施例的一个方面,提供一种信道状态信息的上报方法,包括:
终端设备接收信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;
所述终端设备根据所述CSI上报设置进行CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。
根据本申请实施例的另一方面,提供一种信道状态信息的上报装置,配置于终端设备,该装置包括:
接收单元,其接收信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;
处理单元,其根据所述CSI上报设置进行CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。
本申请实施例的有益效果之一在于:根据本申请实施例,当网络设备对天线配置进行调整的时候,通过对CSI上报设置进行增强,能够使得终端设备高效、准确地进行CSI测量。
参照后文的说明和附图,详细公开了本申请的特定实施方式,指明了本申请的原理可以被采用的方式。应该理解,本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内,本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用,与其它实施方式中的特征相组合,或替代其它实施方式中的特征。
应该强调,术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在,但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在附图中,类似的标号表示几个附图中对应的部件,并可用于指示多于一种实施方式中使用的对应部件。
图1是32端口时的端口分组的一示意图;
图2是本申请实施例的信道状态信息的上报方法的一示意图;
图3是本申请实施例的信道状态信息的配置方法的一示意图;
图4是本申请实施例的信道状态信息的上报装置的一示意图;
图5是本申请实施例的信道状态信息的配置装置的一示意图;
图6是本申请实施例的通信系统的一示意图;
图7是本申请实施例的终端设备的一示意图;
图8是本申请实施例的网络设备的一示意图。
具体实施方式
参照附图,通过下面的说明书,本申请的前述以及其它特征将变得明显。在说明书和附图中,具体公开了本申请的特定实施方式,其表明了其中可以采用本申请的原则的部分实施方式,应了解的是,本申请不限于所描述的实施方式,相反,本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中,术语“第一”、“第二”等用于对不同元素从称谓上进行区分,但并不表示这些元素的空间排列或时间顺序等,这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在,但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中,单数形式“一”、“该”等包括复数形式,应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义;此外术语“所述”应理解为既包括单数形式也包括复数形式,除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”,术语“基于”应理解为“至少部分基于……”,除非上下文另外明确指出。
在本申请实施例中,术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络,例如长期演进(LTE,Long Term Evolution)、增强的长期演进(LTE-A,LTE-Advanced)、宽带码分多址接入(WCDMA,Wideband Code Division Multiple Access)、高速报文接入(HSPA,High-Speed Packet Access)等等。
并且,通信系统中设备之间的通信可以根据任意阶段的通信协议进行,例如可以包括但不限于如下通信协议:1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR,New Radio)、未来的6G等等,和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中,术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备:基站(BS,Base Station)、接入点(AP、Access Point)、发送接收点(TRP,Transmission Reception  Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC,Radio Network Controller)、基站控制器(BSC,Base Station Controller)等等。
其中,基站可以包括但不限于:节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB),IAB宿主等等,此外还可包括远端无线头(RRH,Remote Radio Head)、远端无线单元(RRU,Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能,每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域,这取决于使用该术语的上下文。
在本申请实施例中,术语“用户设备”(UE,User Equipment)或者“终端设备”(TE,Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的,并且也可以称为移动台(MS,Mobile Station)、终端、用户台(SS,Subscriber Station)、接入终端(AT,Access Terminal)、站,等等。
其中,终端设备可以包括但不限于如下设备:蜂窝电话(Cellular Phone)、个人数字助理(PDA,Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机,等等。
再例如,在物联网(IoT,Internet of Things)等场景下,终端设备还可以是进行监控或测量的机器或装置,例如可以包括但不限于:机器类通信(MTC,Machine Type Communication)终端、车载通信终端、设备到设备(D2D,Device to Device)终端、机器到机器(M2M,Machine to Machine)终端,等等。
此外,术语“网络侧”或“网络设备侧”是指网络的一侧,可以是某一基站,也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧,可以是某一UE,也可以包括如上的一个或多个终端设备。本文在没有特别指出的情况下,“设备”可以指网络设备,也可以指终端设备。
在移动通信系统中,通常由终端设备根据网络设备的指示和配置进行CSI测量、再将测量得到的CSI上报给网络设备。网络设备在对该终端设备进行调度的时候,可以参考该CSI以便在合适的物理资源采用合适的传输方式调度该终端设备进行传输。 不同的终端设备可能经历不同的物理信道条件,采用CSI反馈机制可以合理有效地利用物理资源,从而提高整个网络传输的效率。
NR的CSI反馈机制中,终端设备主要基于CSI配置对参考信号进行测量并上报测量结果,参考信号包括CSI-RS和SSB等。NR的CSI配置主要分为两部分,其一是网络设备为终端设备配置用于CSI测量的参考信号资源(CSI-RS资源配置),其二是网络设备配置终端设备如何进行上报(CSI上报配置)。这两种配置原理较为简单,但协议中具体细节较为复杂。这里仅介绍与本申请相关的细节。
CSI-RS资源配置(resource setting)中,可以用于干扰测量和CSI信道测量等。每个resource setting包含S个资源集(resource set)。而每个resource set包含Ks个CSI-RS资源。非周期的resource setting可以包含一个或多个resource set。对于周期的和半持续的resource setting,用于CSI获取时,只能包含一个resource set。
此外,关于Ks的取值,当用于CSI信道测量时,若上报设置中的码本类型为‘Type I’(具体可包括CodebookType=’TypeISinglePanle’或’TypeIMultiPanle’),Ks≤32。当用于CSI信道测量时,若上报设置中的码本类型为‘Type II’(具体可包括CodebookType='typeII','typeII-PortSelection','typeII-r16','typeII-PortSelection-r16','typeII-PortSelection-r17'),Ks=1。这主要是由于TypeII的计算复杂度相对较大,对终端设备的计算挑战性较大,因此NR系统通过限制Ks的取值来相对降低终端设备的计算复杂度。
一个CSI报告(report)由两部分组成,即第一部分Part1和第二部分Part2,其中,CSI报告的第一部分(CSI Part1,也可以称之为Part1)有一个固定的负载大小,并指示CSI的第二部分(CSI Part2,也可以称之为Part2)的信息比特(bit)的数量。CSI报告中,若当前CSI测量用于CSI信道测量,根据不同的码本类型,上报内容有以下的规定:
Type I CSI:part1包括RI(Rank Indicator,秩指示)/CRI(CSI-RS Resource Indicator,CSI-RS资源指示)及第一个CW(codeword,码字)的CQI(Channel Quality Indicator,信道质量指示);part2包括LI(Layer Indicator,层指示)和PMI(Precoding Matrix Indicator,预编码矩阵指示),且秩(rank)大于4时还包括第二个CW的CQI。
Type II CSI:part1包括RI、CQI和每层非零宽带幅度系数的个数;part2包括LI和PMI。
NR系统中,用于信道测量的CSI-RS资源仅支持最多32端口,具体的,可通过RRC(无线资源控制)信令中nzp-CSI-Resource中的nofports进行配置。Rel-19中,考虑到标准化影响过大,对于大于32端口的端口扩展,不考虑新的模式(pattern)设计和每个资源的端口扩展。
此外,对于CSI上报设置,包括上报的CSI参数(report quantity)、CSI类型(Type I或Type II)、码本参数配置,CSI上报时域行为,PMI和CQI的频域颗粒度、测量约束配置以及CSI上报频带。
其中,NR支持的全部上报CSI参数(report quantity)包括:'none','cri-RI-PMI-CQI','cri-RI-i1','cri-RI-i1-CQI','cri-RI-CQI','cri-RSRP','cri-SINR','ssb-Index-RSRP','ssb-Index-SINR'或者'cri-RI-LI-PMI-CQI';CSI类型包括:'typeI Single-Panel','typeI Multi-Panel','typeII','typeII-PortSelection','typeII-r16','typeII-PortSelection-r16','typeII-PortSelection-r17'。
对于Type I single-panel(Type I SP)码本。
下面是Type I single-panel码本的一个示例:
4端口及以上的Type I码本,rank=1时表示为:
其中,为长度为N1N2的过采样2D DFT(二维离散型傅里叶变换)波束;cr,0为两个极化方向间的相位调整因子,r=0,1表示极化方向;c0,0=1,c1,0∈{1,j,-1,-j}。
对于端口配置(N1,N2)及过采样因子(O1,O2),共存在N1O1N2O2个2D DFT波束。波束的索引k1与k2分别表示为:
k1=i1,1s1+p1,k2=i1,2s2+p2
其中,(s1,s2)表示波束组间偏移,且L=1时,(s1,s2)=(1,1),L=4时,(s1,s2)=(2,2)。这样,参数(p1,p2)表示波束组内的波束偏移。当L=1时(L为空域基向量个数配置),由于波束组内仅包含一个波束,因此p1=p2=0;当L=4时,若N2>1,则p1∈{0,1},p2∈{0,1},若N2=1,则p1∈{0,1,2,3},p2=0。
Rank=1时的波束选择和相位调整均为子带上报。根据子带反馈开销的不同,将L=1和L=4分别定义为模式1和模式2。模式1的子带开销为每个子带2bits,模式2的子带开销为每个子带4bits。
Rank>1时,主要通过层之间的正交以及限制部分码本参数的值来设计。
16端口以下采用LTE Class A的码本设计,16端口及以上采用天线端口分组的设计方式。
图1是32端口时的端口分组的一示意图。如图1所示,每个极化方向的端口分为两组,每组独立进行波束选择和相位调整。天线分组间采用组间相位调整,极化方向间采用极化间相位调整。采用端口分组的方式可以得到较宽的波束,以实现更好的覆盖。
16端口以下通过正交波束的选择实现层间的正交,16端口及以上通过分组间的相位调整和极化间的相位调整实现层间的正交。
对于Type I multi-panel(Type I MP)码本。
Type I MP码本基于Type I SP码本构造,其通过在Type I SP码本之间引入panel(面板)间相位调整因子而得到。此panel间相位调整因子可以采用宽带反馈,或宽带+子带反馈的方式。Type I MP码本支持rank 1~4,其支持的天线结构及码本参数的配置如下表所示:

其中,Ng表示panel数,NR中支持2个或4个panel。
每层每个极化方向的每个panel对应的码本部分表示为:
其中,p=0,1,…,Ng-1表示panel;与L=1时的Type I SP码本相同;cp,r,l表示极化间和panel间相位调整因子。考虑不同的反馈开销,panel间相位调整因子可以配置为低开销模式(模式1)和高开销模式(模式2)。模式1为宽带panel间相位调整因子,支持2个panel或4个panel,此时的相位调整因子的反馈开销为每个子带2bits;模式2为子带panel间相位调整因子,仅支持2个panel,此时的相位调整因子的反馈开销为每个子带4bits。
发明人发现,目前的5G网络中,CSI测量上报仅支持最多32端口的CSI-RS资源接收,测量以及CSI信息的上报。因此,目前的CSI测量上报机制并不能支持最多128端口的CSI测量上报,从而基站侧不能完全获取更多数量天线阵列的准确的CSI信道状态信息。此外,针对现有的CSI测量上报框架的扩展也是十分具有挑战性的,尤其是随着天线端口的扩展而导致的成倍增强的CSI上报、反馈。因此,目前标准急需对现有标准方案进行一系列的增强。
下面结合附图对本申请实施例的各种实施方式进行说明。在以下的说明中,“当…时”、“如果…”以及“在…情况下”可以互换。此外,括号中的内容用于对括号前的内容进行解释或举例,本申请并不以括号中的内容作为限制。
第一方面的实施例
本申请实施例提供一种信道状态信息的上报方法,从终端设备的一侧进行说明。图2是本申请实施例的信道状态信息的上报方法的一示意图,如图2所示,该方法包括:
210:终端设备接收信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;
220:所述终端设备根据所述CSI上报设置进行CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。
值得注意的是,以上附图2仅对本申请实施例进行了示意性说明,但本申请不限于此。例如可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型,而不仅限于上述附图2的记载。
根据上述实施例,当网络设备对天线配置进行调整的时候,对C CSI上报设置进行增强,能够使得终端设备高效、准确地进行CSI测量。
在一些实施例中,终端设备还可以接收CSI资源配置,该CSI资源配置包括至少一个CSI-RS资源集用于信道测量。该CSI-RS资源集内可以包括K个资源(测量信号资源,也称为CSI-RS资源)。
在上述实施例中,上述CSI上报设置与上述CSI-RS资源配置相关。例如,在RRC高层信令的CSI-reportConfig上报设置域中配置关联的CSI-RS资源配置。
在上述实施例中,可选的,终端设备可以通过X个CSI-RS资源进行一次PMI、CQI的测量。每个CSI-RS资源可以包括Z个天线端口且各个CSI-RS资源的天线端口数目可以相等。
例如,终端设备可以通过X=4个现有技术中的Z=32端口的CSI-RS组成一个128端口的资源,并进行一次基于128端口的PMI、CQI的测量。
在上述实施例中,CSI-RS资源配置和/或CSI上报设置可以通过RRC信令发送,本申请对具体的实现方式不做限制。
在一些实施例中,上述第一测量模式由网络设备通过RRC信令配置。例如,可以通过在RRC信令中新增一个域来进行配置。
在上述实施例中,新增的域例如为码本配置域,例如称为Codebookcconfig-r19。该码本配置域可以包括码本类型,例如称为codebookType,该码本类型例如可以包括以下至少之一:
typeI-SinglePanel-r19;
typeI-MultiPanel-r19;
etypeII-r19;
fetypeII-r19。
关于上述码本类型的含义,可以参考相关技术,此处不再赘述。
在一些实施例中,码本类型包括X个码本子集限制,例如,第x个码本子集限制参数为‘n1-n2-codebookSubsetRestrictionx-r19’。或者,码本类型也可以包括仅包括1个码本子集限制,该码本子集限制参数例如为‘n1-n2-codebookSubsetRestriction-r19’。
在另一些实施例中,码本类型包括X个码本参数组,例如,‘typeI-SinglePanel-Group1-r17’…‘typeI-SinglePanel-GroupX-r17’。
在上述实施例中,码本参数组和码本子集限制的对应关系可以是,每个码本参数组对应1个码本子集限制,例如,第x个码本参数组对应的码本子集限制参数为‘n1-n2-codebookSubsetRestrictionx-r19’;或者,所有码本参数组对应1个码本子集限制,例如所有码本参数组对应的码本子集限制参数为‘n1-n2-codebookSubsetRestriction-r19’。
在一些实施例中,终端设备还可以接收X个空域(spatial domain)基向量配置参数Lx,该空域基向量配置参数Lx为第x个CSI-RS资源对应的空域基向量个数,1≤x≤X,X为大于或等于1的正整数。
在上述实施例中,可选的,各个空域基向量配置参数Lx的取值可以相同。例如,从第1个到第X个CSI-RS资源对应的空域基向量个数都是相同的,都为1,也即Lx=1。
在一些可能的实现方式中,终端设备根据每个CSI-RS计算并上报基于每个CSI-RS资源的空域基向量选择结果。例如,第x个CSI-RS资源用于计算并上报Lx个空域基向量选择结果。
例如,终端设备可以通过码本参数i1,1,x和i1,2,x进行CSI上报,也即上报上述基于每个CSI-RS资源的空域基向量选择结果;或者,终端设备可以通过码本参数i1,1和i1,2,x进行CSI上报,也即上报上述基于每个CSI-RS资源的空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
在另一些可能的实现方式中,如果各个空域基向量配置参数Lx的取值相同,终端设备根据所有CSI-RS资源计算并上报X*Lx个空域基向量选择结果。
例如,终端设备可以通过码本参数i1,1,x和i1,2,x进行CSI上报,也即上报上述基于所有CSI-RS资源的X*Lx个空域基向量选择结果;或者,终端设备通过码本参数i1,1 和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的X*Lx个空域基向量选择结果;或者,终端设备通过码本参数i1,1,x和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的X*Lx个空域基向量选择结果;或者,终端设备通过码本参数i1,1和i1,2,x进行CSI上报,也即上报上述基于所有CSI-RS资源的X*Lx个空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
在又一些可能的实现方式中,如果各个空域基向量配置参数Lx的取值相同,终端设备根据所有CSI-RS资源计算并上报Lx个空域基向量选择结果以及X-1个相对于上述基于Lx的空域基向量选择结果的相对偏移值(offset)和/或相对相位相关值(co-phasing)。
例如,终端设备可以通过码本参数i1,1和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的Lx个空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
再例如,终端设备可以通过码本参数i1,3,x和i1,4,x进行上述相对偏移值和/或相对相位相关值的上报。可选的,上述相对偏移值和/或相对相位相关值的上报可以是宽带上报。例如,终端设备可以通过2bits的QPSK或4bit的16PSK或进行上述上报。
在又一些可能的实现方式中,如果各个空域基向量配置参数Lx的取值相同,终端设备根据所有CSI-RS资源计算并上报Lx个的空域基向量选择结果。
例如,终端设备可以通过码本参数i1,1和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的Lx个空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
在又一些可能的实现方式中,如果各个空域基向量配置参数Lx的取值相同,若CSI-RS资源的天线端口数大于或等于16,终端设备将CSI-RS资源的全部天线端口分为Y组,并根据每个CSI-RS资源计算并上报1组的Lx个空域基向量选择结果。
例如,上述Lx=1。
再例如,终端设备可以通过码本参数i1,3,Y-1进行其他组针对上述1组的相对偏移值(offset)和/或相对相位相关值(co-phasing)的上报。可选的,上述相对偏移值和/或相对相位相关值的上报可以是宽带上报,也可以是子带上报。
在另一些实施例中,终端设备还可以接收1个空域(spatial domain)基向量配置参数L,L为空域基向量的个数,并且L为大于或等于1的正整数。
在上述实施例中,可选的,L=1。
在一些可能的实现方式中,终端设备根据每个CSI-RS资源计算并上报基于每个CSI-RS资源的L个空域基向量选择结果。
例如,终端设备通过码本参数i1,1,x和i1,2,x进行CSI上报,也即上报上述基于每个CSI-RS资源的L个空域基向量选择结果;或者,终端设备通过码本参数i1,1和i1,2,x进行CSI上报,也即上报上述基于每个CSI-RS资源的L个空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
在另一些可能的实现方式中,终端设备根据所有CSI-RS资源计算并上报X*L个空域基向量选择结果。
例如,终端设备可以通过码本参数i1,1,x和i1,2,x进行CSI上报,也即上报上述基于所有CSI-RS资源的X*L个空域基向量选择结果;或者,终端设备通过码本参数i1,1和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的X*L个空域基向量选择结果;或者,终端设备通过码本参数i1,1,x和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的X*L个空域基向量选择结果;或者,终端设备通过码本参数i1,1和i1,2,x进行CSI上报,也即上报上述基于所有CSI-RS资源的X*L个空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
在又一些可能的实现方式中,终端设备根据所有CSI-RS资源计算并上报L个空域基向量选择结果以及X-1个相对于上述L个空域基向量选择结果的相对偏移值(offset)和/或相对相位相关值(co-phasing)。
例如,终端设备通过码本参数i1,1和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的L个空域基向量选择结果。可选的,该CSI上报可以是宽带上报。
再例如,终端设备通过码本参数i1,3,x和i1,4,x进行上述相对偏移值和/或相对相位相关值的上报。可选的,上述相对偏移值和/或相对相位相关值的上报可以是宽带上报。例如,终端设备可以通过2bits的QPSK或4bit的16PSK或进行上述上报。
在又一些可能的实现方式中,终端设备根据所有CSI-RS资源计算并上报L个空域基向量选择结果。
例如,终端设备通过i1,1和i1,2进行CSI上报,也即上报上述基于所有CSI-RS资源的L个空域基向量选择结果。可选的,上述CSI上报可以是宽带上报。
在又一些可能的实现方式中,如果各个空域基向量配置参数L的取值相同,若 CSI-RS资源的端口数大于或等于16,终端设备可以将CSI-RS资源的全部天线端口分为Y组,并根据CSI-RS资源计算并上报1组的L个空域基向量选择结果。
例如,上述L=1。
再例如,终端设备可以通过码本参数i1,3,Y-1进行其他组针对上述1组的相对偏移值(offset)和/或相对相位相关值(co-phasing)的上报。可选的,上述相对偏移值和/或相对相位相关值的上报可以是宽带上报,也可以是子带上报。
在又一些实施例中,终端设备根据每个CSI-RS资源计算并上报宽带或子带的Lx个空域基向量选择结果中的一个最优基向量。
例如,终端设备可以通过码本参数i2,x进行每个层的CSI上报,即针对每个层上报选择出的上述最优基向量。可选的,终端设备可以通过1~4bits进行上述上报。
在又一些实施例中,终端设备根据全部CSI-RS资源计算并上报宽带或子带的L个空域基向量选择结果中的一个最优基向量。
例如,终端设备可以通过码本参数i2进行每个层的CSI上报,即针对每个层上报选择出的上述最优基向量。可选的,终端设备可以通过1~4bits进行上述上报。
再例如,终端设备通过码本参数i2,1进行1个层的CSI上报,并通过码本参数i2,2上报其他层相对上述1个层的空域基向量选择结果的相对相位相关值(co-phasing)。可选的,终端设备可以通过2bits的QPSK或4bit的16PSK或进行上述上报。
关于前述各个码本参数的含义可以参考相关技术,此处不再赘述。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
根据本申请实施例的方法,终端设备能够高效、准确地进行CSI测量。
第二方面的实施例
本申请实施例提供一种信道状态信息的配置方法,从网络设备的一侧进行说明,与第一方面的实施例相同的内容不再赘述。
图3是本申请实施例的信道状态信息的配置方法的一示意图,如图3所示,该方法包括:
310:网络设备向终端设备发送信道状态信息(CSI)上报设置,该CSI上报设置 至少包括第一测量模式下的码本配置信息;
320:网络设备接收终端设备根据所述CSI上报设置发送的CSI上报,该CSI上报的上报量至少包括预编码矩阵索引(PMI)。
值得注意的是,以上附图3仅对本申请实施例进行了示意性说明,但本申请不限于此。例如可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型,而不仅限于上述附图3的记载。
在一些实施例中,网络设备可以通过RRC信令配置上述第一测量模式。
例如,RRC信令包括码本配置域(Codebookcconfig-r19),所述码本配置域(Codebookcconfig-r19)包括码本类型(codebookType),所述码本类型(codebookType)包括以下至少之一:
typeI-SinglePanel-r19;
typeI-MultiPanel-r19;
etypeII-r19;
fetypeII-r19。
关于上述码本类型的相关内容已经在第一方面的实施例中做了说明,此处不再赘述。
在一些实施例中,网络设备还可以向终端设备发送X个空域基向量配置参数Lx,Lx为第x个CSI-RS资源对应的空域基向量个数,其中,1≤x≤X,X为大于或等于1的正整数。
在上述实施例中,网络设备还可以接收终端设备根据每个CSI-RS资源计算并上报的基于每个CSI-RS资源的Lx个空域基向量选择结果。或者,网络设备还可以接收终端设备根据所有CSI-RS资源计算并上报的X*Lx个空域基向量选择结果。或者,网络设备还可以接收终端设备根据所有CSI-RS资源计算并上报的Lx个空域基向量选择结果以及X-1个相对于该Lx个空域基向量选择结果的相对偏移值和/或相对相位相关值。或者,网络设备还可以接收终端设备根据所有CSI-RS资源计算并上报的Lx个空域基向量选择结果。或者,网络设备可以接收终端设备将CSI-RS资源的全部天线端口分为Y组后根据每个CSI-RS资源计算并上报的1组的Lx个空域基向量选择结果。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
在另一些实施例中,网络设备还可以向终端设备发送1个空域基向量配置参数L,L为空域基向量个数,L为大于或等于1的正整数。
在上述实施例中,网络设备还可以接收终端设备根据每个CSI-RS资源计算并上报的基于每个CSI-RS资源的L个空域基向量选择结果。或者,网络设备还可以接收终端设备根据所有CSI-RS资源计算并上报的X*L个空域基向量选择结果。或者,网络设备还可以接收终端设备根据所有CSI-RS资源计算并上报的L个空域基向量选择结果以及X-1个相对于该L个空域基向量选择结果的相对偏移值和/或相对相位相关值。或者,网络设备还可以接收终端设备根据所有CSI-RS资源计算并上报的L个空域基向量选择结果。或者,网络设备可以接收终端设备将CSI-RS资源的全部天线端口分为Y组后根据每个CSI-RS资源计算并上报的1组的L个空域基向量选择结果。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
在又一些实施例中,网络设备还可以接收终端设备根据每个CSI-RS资源计算并上报的宽带或子带的Lx个空域基向量选择结果中的一个最优基向量。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
在又一些实施例中,网络设备还可以接收终端设备根据全部CSI-RS资源计算并上报的宽带或子带的L个空域基向量选择结果中的一个最优基向量。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
根据本申请实施例的方法,终端设备能够高效、准确地进行CSI测量。
第三方面的实施例
本申请实施例提供一种信道状态信息的上报装置。该装置例如可以是终端设备,也可以是配置于终端设备的某个或某些部件或者组件,与第一方面的实施例相同的内容不再赘述。
图4是本申请实施例的信道状态信息的上报装置的一示意图。如图4所示,本申 请实施例的信道状态信息的配置和上报装置400包括:
接收单元410,其接收信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;以及
处理单元420,其根据所述CSI上报设置进行CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。
在一些实施例中,第一测量模式由网络设备通过RRC信令配置。
在上述实施例中,RRC信令可以包括码本配置域(Codebookcconfig-r19),该码本配置域(Codebookcconfig-r19)包括码本类型(codebookType),该码本类型(codebookType)包括以下至少之一:
typeI-SinglePanel-r19;
typeI-MultiPanel-r19;
etypeII-r19;
fetypeII-r19。
在上述实施例中,码本类型可以包括X个码本子集限制,第x个码本子集限制参数为‘n1-n2-codebookSubsetRestrictionx-r19’;或者,码本类型可以包括1个码本子集限制,所述码本子集限制参数为‘n1-n2-codebookSubsetRestriction-r19’。
在上述实施例中,码本类型可以包括X个码本参数组。其中,每个码本参数组对应1个码本子集限制;或者,所有码本参数组对应1个码本子集限制。
在一些实施例中,接收单元410接收X个空域基向量配置参数Lx,Lx为第x个CSI-RS资源对应的空域基向量个数,其中,1≤x≤X,X为大于或等于1的正整数。
在上述实施例中,各个空域基向量配置参数Lx的取值可以相同。
在上述实施例中,各个空域基向量配置参数Lx的取值可以为1,也即,Lx=1。
在上述实施例中,处理单元420可以根据每个CSI-RS资源计算并上报基于每个CSI-RS资源的Lx个空域基向量选择结果。
例如,处理单元420通过码本参数i1,1,x和i1,2,x进行CSI上报;或者,处理单元420通过码本参数i1,1和i1,2,x进行CSI上报。
在上述实施例中,如果各个空域基向量配置参数Lx的取值相同,处理单元420可以根据所有CSI-RS资源计算并上报X*Lx个空域基向量选择结果。
例如,处理单元420通过码本参数i1,1,x和i1,2,x进行CSI上报;或者,处理单元 420通过码本参数i1,1和i1,2进行CSI上报;或者,处理单元420通过码本参数i1,1,x和i1,2进行CSI上报;或者,处理单元420通过码本参数i1,1和i1,2,x进行CSI上报。
在上述实施例中,如果各个空域基向量配置参数Lx的取值相同,处理单元420可以根据所有CSI-RS资源计算并上报Lx个空域基向量选择结果以及X-1个相对于所述Lx个空域基向量选择结果的相对偏移值(offset)和/或相对相位相关值(co-phasing)。
例如,处理单元420通过码本参数i1,1和i1,2进行CSI上报;或者,处理单元420通过码本参数i1,3,x和i1,4,x进行所述相对偏移值和/或相对相位相关值的上报。
在上述实施例中,如果各个空域基向量配置参数Lx的取值相同,处理单元420可以根据所有CSI-RS资源计算并上报Lx个空域基向量选择结果。
例如,处理单元420通过码本参数i1,1和i1,2进行CSI上报。
在上述实施例中,如果各个空域基向量配置参数Lx的取值相同,若CSI-RS资源的天线端口数大于或等于16,处理单元420可以将CSI-RS资源的全部天线端口分为Y组,并根据每个CSI-RS资源计算并上报1组的Lx个空域基向量选择结果。其中,Lx=1。
例如,处理单元420通过码本参数i1,3,Y-1进行其他组针对所述1组的相对偏移值(offset)和/或相对相位相关值(co-phasing)的上报。
在另一些实施例中,接收单元410接收1个空域基向量配置参数L,L为空域基向量个数,L为大于或等于1的正整数。
在上述实施例中,L例如为1,也即L=1。
在上述实施例中,处理单元420可以根据每个CSI-RS资源计算并上报基于每个CSI-RS资源的L个空域基向量选择结果。
例如,处理单元420通过码本参数i1,1,x和i1,2,x进行CSI上报;或者,处理单元420通过码本参数i1,1和i1,2,x进行CSI上报。
在上述实施例中,处理单元420也可以根据所有CSI-RS资源计算并上报X*L个空域基向量选择结果。
例如,处理单元420通过码本参数i1,1,x和i1,2,x进行CSI上报;或者,处理单元420通过码本参数i1,1和i1,2进行CSI上报;或者,处理单元420通过码本参数i1,1,x和i1,2进行CSI上报;或者,处理单元420通过码本参数i1,1和i1,2,x进行CSI上报。
在上述实施例中,处理单元420还可以根据所有CSI-RS资源计算并上报L个空域基向量选择结果以及X-1个相对于所述L个空域基向量选择结果的相对偏移值(offset)和/或相对相位相关值(co-phasing)。
例如,处理单元420通过码本参数i1,1和i1,2进行CSI上报;或者,处理单元420通过码本参数i1,3,x和i1,4,x进行所述相对偏移值和/或相对相位相关值的上报。
在上述实施例中,处理单元420还可以根据所有CSI-RS资源计算并上报L个空域基向量选择结果。
例如,处理单元420通过i1,1和i1,2进行CSI上报。
在上述实施例中,如果各个空域基向量配置参数L的取值相同,若CSI-RS资源的端口数大于或等于16,处理单元420可以将CSI-RS资源的全部天线端口分为Y组,并根据CSI-RS资源计算并上报1组的L个空域基向量选择结果。L例如为1,也即,L=1。
例如,处理单元420通过码本参数i1,3,Y-1进行其他组的针对所述1组的相对偏移值(offset)和/或相对相位相关值(co-phasing)上报。
在又一些实施例中,处理单元420根据每个CSI-RS资源计算并上报宽带或子带的Lx个空域基向量选择结果中的一个最优基向量。
例如,处理单元420通过码本参数i2,x进行每个层的CSI上报。
在又一些实施例中,处理单元420根据全部CSI-RS资源计算并上报宽带或子带的L个空域基向量选择结果中的一个最优基向量。
例如,处理单元420通过码本参数i2进行每个层的CSI上报。
再例如,处理单元420通过码本参数i2,1进行1个层的CSI上报,并通过码本参数i2,2上报其他层相对所述1个层的空域基向量选择结果的相对相位相关值(co-phasing)。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。信道状态信息的上报装置400还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,为了简单起见,图4中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
通过本申请实施例的装置,终端设备能够高效、准确地进行CSI测量。
第四方面的实施例
本申请实施例提供一种信道状态信息的配置装置。该装置例如可以是网络设备,也可以是配置于网络设备的某个或某些部件或者组件,与第一和第二方面的实施例相同的内容不再赘述。
图5是本申请实施例的信道状态信息的配置装置的一示意图。如图5所示,本申请实施例的信道状态信息的配置装置500包括:
发送单元510,其向终端设备发送信道状态信息(CSI)上报设置,该CSI上报设置至少包括第一测量模式下的码本配置信息;
接收单元520,其接收终端设备根据所述CSI上报设置发送的CSI上报,该CSI上报的上报量至少包括预编码矩阵索引(PMI)。
在一些实施例中,如图5所示,该装置500还包括:
配置单元530,其通过RRC信令配置上述第一测量模式。
例如,RRC信令包括码本配置域(Codebookcconfig-r19),该码本配置域(Codebookcconfig-r19)包括码本类型(codebookType),所述码本类型(codebookType)包括以下至少之一:
typeI-SinglePanel-r19;
typeI-MultiPanel-r19;
etypeII-r19;
fetypeII-r19。
关于上述码本类型的相关内容已经在第一方面的实施例中做了说明,此处不再赘述。
在一些实施例中,发送单元510还可以向终端设备发送X个空域基向量配置参数Lx,Lx为第x个CSI-RS资源对应的空域基向量个数,其中,1≤x≤X,X为大于 或等于1的正整数。
在上述实施例中,接收单元520还可以接收终端设备根据每个CSI-RS资源计算并上报的基于每个CSI-RS资源的Lx个空域基向量选择结果。或者,接收单元520还可以接收终端设备根据所有CSI-RS资源计算并上报的X*Lx个空域基向量选择结果。或者,接收单元520还可以接收终端设备根据所有CSI-RS资源计算并上报的Lx个空域基向量选择结果以及X-1个相对于该Lx个空域基向量选择结果的相对偏移值和/或相对相位相关值。或者,接收单元520还可以接收终端设备根据所有CSI-RS资源计算并上报的Lx个空域基向量选择结果。或者,接收单元520可以接收终端设备将CSI-RS资源的全部天线端口分为Y组后根据每个CSI-RS资源计算并上报的1组的Lx个空域基向量选择结果。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
在另一些实施例中,发送单元510还可以向终端设备发送1个空域基向量配置参数L,L为空域基向量个数,L为大于或等于1的正整数。
在上述实施例中,接收单元520还可以接收终端设备根据每个CSI-RS资源计算并上报的基于每个CSI-RS资源的L个空域基向量选择结果。或者,接收单元520还可以接收终端设备根据所有CSI-RS资源计算并上报的X*L个空域基向量选择结果。或者,接收单元520还可以接收终端设备根据所有CSI-RS资源计算并上报的L个空域基向量选择结果以及X-1个相对于该L个空域基向量选择结果的相对偏移值和/或相对相位相关值。或者,接收单元520还可以接收终端设备根据所有CSI-RS资源计算并上报的L个空域基向量选择结果。或者,接收单元520可以接收终端设备将CSI-RS资源的全部天线端口分为Y组后根据每个CSI-RS资源计算并上报的1组的L个空域基向量选择结果。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
在又一些实施例中,接收单元520还可以接收终端设备根据每个CSI-RS资源计算并上报的宽带或子带的Lx个空域基向量选择结果中的一个最优基向量。关于终端设备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
在又一些实施例中,接收单元520还可以接收终端设备根据全部CSI-RS资源计算并上报的宽带或子带的L个空域基向量选择结果中的一个最优基向量。关于终端设 备进行上述上报所采用的码本参数,已经在第一方面的实施例中做了说明,此处不再赘述。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。信道状态信息的配置装置500还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,为了简单起见,图5中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
通过本申请实施例,终端设备能够高效、准确地进行CSI测量。
第五方面的实施例
本申请实施例还提供一种通信系统,该通信系统包括网络设备和终端设备。
图6是本申请实施例的通信系统的示意图,示意性说明了以终端设备和网络设备为例的情况,如图6所示,通信系统600可以包括网络设备601和终端设备602、603。为简单起见,图6仅以两个终端设备和一个网络设备为例进行说明,但本申请实施例不限于此。
在本申请实施例中,网络设备601和终端设备602、603之间可以进行现有的业务或者未来可实施的业务发送。例如,这些业务可以包括但不限于:增强的移动宽带(eMBB,enhanced Mobile Broadband)、大规模机器类型通信(mMTC,massive Machine Type Communication)和高可靠低时延通信(URLLC,Ultra-Reliable and Low-Latency Communication),等等。
值得注意的是,图6示出了两个终端设备602、603均处于网络设备601的覆盖范围内,但本申请不限于此。两个终端设备602、603可以均不在网络设备601的覆盖范围内,或者一个终端设备602在网络设备601的覆盖范围之内而另一个终端设备603在网络设备601的覆盖范围之外。
在一些实施例中,终端设备包括第三方面的实施例所述的装置,被配置为执行第一方面的实施例所述的方法。由于在第一方面的实施例中,已经对该方法进行了详细说明,其内容被合并于此,不再重复说明。
在一些实施例中,网络设备包括第四方面的实施例所述的装置,被配置为执行第二方面的实施例所述的方法。由于在第二方面的实施例中,已经对该方法进行了详细说明,其内容被合并于此,不再重复说明。
本申请实施例还提供一种终端设备,该终端设备例如可以是UE,但本申请不限于此,还可以是其他的设备。
图7是本申请实施例的终端设备的示意图。如图7所示,该终端设备700可以包括处理器710和存储器720;存储器720存储有数据和程序,并耦合到处理器710。值得注意的是,该图是示例性的;还可以使用其他类型的结构,来补充或代替该结构,以实现电信功能或其他功能。
例如,处理器710可以被配置为执行程序而实现如第一方面的实施例所述的方法。
如图7所示,该终端设备700还可以包括:通信模块730、输入单元740、显示器750、电源760。其中,上述部件的功能与现有技术类似,此处不再赘述。值得注意的是,终端设备700也并不是必须要包括图7中所示的所有部件,上述部件并不是必需的;此外,终端设备700还可以包括图7中没有示出的部件,可以参考现有技术。
本申请实施例还提供一种网络设备,例如可以是gNB,但本申请不限于此,还可以是其他的网络设备。
图8是本申请实施例的网络设备的构成示意图。如图8所示,网络设备800可以包括:处理器810(例如中央处理器CPU)和存储器820;存储器820耦合到处理器810。其中该存储器820可存储各种数据;此外还存储信息处理的程序830,并且在处理器810的控制下执行该程序830。
例如,处理器810可以被配置为执行程序而实现如第二方面的实施例所述的方法。
此外,如图8所示,网络设备800还可以包括:收发机840和天线850等;其中,上述部件的功能与现有技术类似,此处不再赘述。值得注意的是,网络设备800也并不是必须要包括图8中所示的所有部件;此外,网络设备800还可以包括图8中没有示出的部件,可以参考现有技术。
本申请实施例还提供一种计算机程序,其中当在终端设备中执行所述程序时,所 述程序使得所述终端设备执行第一方面的实施例所述的方法。
本申请实施例还提供一种存储有计算机程序的存储介质,其中所述计算机程序使得终端设备执行第一方面的实施例所述的方法。
本申请实施例还提供一种计算机程序,其中当在网络设备中执行所述程序时,所述程序使得所述网络设备执行第二方面的实施例所述的方法。
本申请实施例还提供一种存储有计算机程序的存储介质,其中所述计算机程序使得网络设备执行第二方面的实施例所述的方法。
本申请以上的装置和方法可以由硬件实现,也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序,当该程序被逻辑部件所执行时,能够使该逻辑部件实现上文所述的装置或构成部件,或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质,如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如,图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合,既可以对应于计算机程序流程的各个软件模块,亦可以对应于各个硬件模块。这些软件模块,可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息;或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中,也可以存储在可插入移动终端的存储卡中。例如,若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置,则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,还可以实现为计算设备的组合, 例如,DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述,但本领域技术人员应该清楚,这些描述都是示例性的,并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改,这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式,还公开下述的附记:
1.信道状态信息的配置方法,其中,所述方法包括:
网络设备向终端设备发送信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;
所述网络设备接收所述终端设备根据所述CSI上报设置进行的CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。
2.根据附记1所述的方法,其中,
所述第一测量模式由所述网络设备通过RRC信令配置;
所述RRC信令包括码本配置域(Codebookcconfig-r19),所述码本配置域(Codebookcconfig-r19)包括码本类型(codebookType),所述码本类型(codebookType)包括以下至少之一:
typeI-SinglePanel-r19;
typeI-MultiPanel-r19;
etypeII-r19;
fetypeII-r19;
所述码本类型包括X个码本参数组。
3.根据附记2所述的方法,其中,
每个码本参数组对应1个码本子集限制;或者,
所有码本参数组对应1个码本子集限制。
4.根据附记1所述的方法,其中,所述方法还包括:
所述终端设备接收X个空域基向量配置参数Lx,Lx为第x个CSI-RS资源对应的空域基向量个数,其中,1≤x≤X,X为大于或等于1的正整数;
其中,
各个所述空域基向量配置参数Lx的取值相同;或者,
各个所述空域基向量配置参数Lx的取值为1,也即,Lx=1。
5.根据附记1所述的方法,其中,所述方法还包括:
所述终端设备接收1个空域基向量配置参数L,L为空域基向量个数,L为大于或等于1的正整数,其中,L=1。
6.根据附记1所述的方法,其中,所述方法还包括:
所述终端设备根据每个CSI-RS资源计算并上报宽带或子带的Lx个空域基向量选择结果中的一个最优基向量,其中,
所述终端设备通过码本参数i2,x进行每个层的CSI上报。
7.根据附记1所述的方法,其中,所述方法还包括:
所述终端设备根据全部CSI-RS资源计算并上报宽带或子带的L个空域基向量选择结果中的一个最优基向量,其中,
所述终端设备通过码本参数i2进行每个层的CSI上报。
8.一种网络设备,包括存储器和处理器,所述存储器存储有计算机程序,所述处理器被配置为执行所述计算机程序而实现如附记1至7任一项所述的方法。
9.一种通信系统,所述网络设备和终端设备,所述网络设备被配置为执行附记1至7任一项所述的方法,所述终端设备被配置为接收所述网络设备发送的所述CSI上报设置,并根据该CSI上报设置进行CSI上报,该CSI上报的上报量至少包括PMI。

Claims (20)

  1. 信道状态信息的上报装置,配置于终端设备,其中,所述装置包括:
    接收单元,其接收信道状态信息(CSI)上报设置,所述CSI上报设置至少包括第一测量模式下的码本配置信息;
    处理单元,其根据所述CSI上报设置进行CSI上报,所述CSI上报的上报量至少包括预编码矩阵索引(PMI)。
  2. 根据权利要求1所述的装置,其中,
    所述第一测量模式由网络设备通过无线资源控制(RRC)信令配置。
  3. 根据权利要求2所述的装置,其中,
    所述RRC信令包括码本配置域,所述码本配置域包括码本类型,所述码本类型包括以下至少之一:
    typeI-SinglePanel-r19;
    typeI-MultiPanel-r19;
    etypeII-r19;
    fetypeII-r19。
  4. 根据权利要求3所述的装置,其中,
    所述码本类型包括X个码本子集限制,第x个码本子集限制参数为‘n1-n2-codebookSubsetRestrictionx-r19’;或者,
    所述码本类型包括1个码本子集限制,所述码本子集限制参数为‘n1-n2-codebookSubsetRestriction-r19’。
  5. 根据权利要求1所述的装置,其中,
    所述接收单元接收X个空域基向量配置参数Lx,Lx为第x个信道状态信息参考信号(CSI-RS)资源对应的空域基向量个数,其中,1≤x≤X,X为大于或等于1的正整数。
  6. 根据权利要求5所述的装置,其中,
    所述处理单元根据每个CSI-RS资源计算并上报基于每个CSI-RS资源的Lx个空域基向量选择结果。
  7. 根据权利要求5所述的装置,其中,
    如果各个所述空域基向量配置参数Lx的取值相同,所述处理单元根据所有CSI-RS资源计算并上报X*Lx个空域基向量选择结果。
  8. 根据权利要求5所述的装置,其中,
    如果各个所述空域基向量配置参数Lx的取值相同,所述处理单元根据所有CSI-RS资源计算并上报Lx个空域基向量选择结果以及X-1个相对于所述Lx个空域基向量选择结果的相对偏移值和/或相对相位相关值。
  9. 根据权利要求5所述的装置,其中,
    如果各个所述空域基向量配置参数Lx的取值相同,所述处理单元根据所有CSI-RS资源计算并上报Lx个空域基向量选择结果。
  10. 根据权利要求5所述的装置,其中,
    如果各个空域基向量配置参数Lx的取值相同,若CSI-RS资源的天线端口数大于或等于16,所述处理单元将所述CSI-RS资源的全部天线端口分为Y组,并根据每个CSI-RS资源计算并上报1组的Lx个空域基向量选择结果。
  11. 根据权利要求10所述的装置,其中,
    所述处理单元通过码本参数i1,3,Y-1进行其他组针对所述1组的相对偏移值和/或相对相位相关值的上报。
  12. 根据权利要求1所述的装置,其中,
    所述接收单元接收1个空域基向量配置参数L,L为空域基向量个数,L为大于或等于1的正整数。
  13. 根据权利要求12所述的装置,其中,
    所述处理单元根据每个CSI-RS资源计算并上报基于每个CSI-RS资源的L个空域基向量选择结果。
  14. 根据权利要求12所述的装置,其中,
    所述处理单元根据所有CSI-RS资源计算并上报X*L个空域基向量选择结果。
  15. 根据权利要求12所述的装置,其中,
    所述处理单元根据所有CSI-RS资源计算并上报L个空域基向量选择结果,以及X-1个相对于所述L个空域基向量选择结果的相对偏移值和/或相对相位相关值。
  16. 根据权利要求12所述的装置,其中,
    所述处理单元根据所有CSI-RS资源计算并上报L个空域基向量选择结果。
  17. 根据权利要求12所述的装置,其中,
    如果各个空域基向量配置参数L的取值相同,若CSI-RS资源的端口数大于或等于16,所述处理单元将所述CSI-RS资源的全部天线端口分为Y组,并根据所述CSI-RS资源计算并上报1组的L个空域基向量选择结果。
  18. 根据权利要求17所述的装置,其中,
    所述处理单元通过码本参数i1,3,Y-1进行其他组的针对所述1组的相对偏移值和/或相对相位相关值上报。
  19. 根据权利要求1所述的装置,其中,
    所述处理单元根据每个CSI-RS资源计算并上报宽带或子带的Lx个空域基向量选择结果中的一个最优基向量。
  20. 根据权利要求1所述的装置,其中,
    所述处理单元根据全部CSI-RS资源计算并上报宽带或子带的L个空域基向量选择结果中的一个最优基向量,其中,
    所述处理单元通过码本参数i2,1进行1个层的CSI上报,并通过码本参数i2,2上报其他层相对所述1个层的空域基向量选择结果的相对相位相关值。
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