WO2022204894A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

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Publication number
WO2022204894A1
WO2022204894A1 PCT/CN2021/083668 CN2021083668W WO2022204894A1 WO 2022204894 A1 WO2022204894 A1 WO 2022204894A1 CN 2021083668 W CN2021083668 W CN 2021083668W WO 2022204894 A1 WO2022204894 A1 WO 2022204894A1
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WO
WIPO (PCT)
Prior art keywords
csi
resource
bwp
configuration information
information
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PCT/CN2021/083668
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English (en)
Chinese (zh)
Inventor
柴晓萌
吴艺群
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2021/083668 priority Critical patent/WO2022204894A1/fr
Priority to CN202180094981.9A priority patent/CN116941205A/zh
Publication of WO2022204894A1 publication Critical patent/WO2022204894A1/fr

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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

Definitions

  • the present application relates to the field of communication, and more particularly, to a communication method and a communication device.
  • Channel state information is used to characterize the channel characteristics of the communication link.
  • the base station can process the downlink data according to the downlink CSI, so that the processed downlink data can overcome some path losses in the channel transmission process.
  • a base station can configure one or more bandwidth parts (BWP) for a user equipment (UE) and activate one of the BWPs as the activated BWP.
  • the base station and the UE are on the activated BWP. to communicate.
  • the base station can obtain the CSI on the activated BWP reported by the UE. If the communication quality between the base station and the UE on the activated BWP deteriorates, the base station will replace the activated BWP for the UE. After the UE completes the replacement of the activated BWP, the base station cannot obtain the CSI on the activated BWP after the replacement reported by the UE. It is determined whether the channel quality of the activated BWP after replacement is good or not, which may lead to the situation that the base station continuously replaces the activated BWP for the UE.
  • Embodiments of the present application provide a communication method and a communication device, so as to improve the reliability of communication.
  • a communication method is provided, and the method can be performed by a terminal device or a module (eg, a chip) configured in (or used for) the terminal device.
  • a module eg, a chip
  • the method includes: receiving first information, where the first information is used to indicate first configuration information, the first configuration information is used to configure a first channel state information CSI report, the first CSI report is related to the first partial bandwidth BWP
  • the first channel state information reference signal CSI-RS resource on the CSI-RS resource is associated with the first BWP, and the first BWP is an inactive BWP; the first CSI report is sent, and the first CSI report includes the first CSI, and the first CSI is obtained by measuring the first CSI-RS resource.
  • the network device can instruct the terminal device to measure the CSI-RS resources on the inactive BWP to obtain the CSI on the inactive BWP, so that the network device can select a BWP with better channel conditions to be activated based on the CSI on the inactive BWP BWP.
  • the situation that the network equipment continuously replaces the BWP for the terminal equipment is reduced, and the reliability of the communication is improved.
  • the first CSI report is further associated with a second CSI-RS resource on a second BWP, the second BWP is an activated BWP, and the The first CSI report further includes second CSI, where the second CSI is obtained by measuring the second CSI-RS resource.
  • the terminal device can measure and report CSI information on multiple BWPs (eg, activated BWPs and inactive BWPs). It can improve work efficiency and reduce signaling overhead.
  • the first configuration information includes first indication information, where the first indication information is used to indicate the first CSI-RS resource.
  • the first indication information is specifically used to indicate first CSI resource configuration information
  • the first CSI resource configuration information is used to indicate at least one CSI-RS resource A set
  • the at least one CSI-RS resource set includes a first CSI-RS resource set
  • the first CSI-RS resource set includes the first CSI-RS resource.
  • the first CSI resource configuration information includes identification information of the first BWP.
  • the configuration information of the first CSI-RS resource set includes identification information of the first BWP.
  • the first CSI resource configuration information includes second indication information, where the second indication information is used to indicate the first CSI-RS resource set.
  • the configuration information of the first CSI-RS resource includes identification information of the first BWP.
  • the configuration information of the first CSI-RS resource set includes third indication information, where the third indication information is used to indicate the first CSI-RS resource.
  • the first configuration information includes fourth indication information
  • the fourth indication information is used to indicate the second configuration information
  • the second configuration information is used to The second CSI-RS resource and time offset are indicated
  • the method further includes: determining the first CSI-RS resource according to the second CSI-RS resource and the time offset.
  • the second configuration information indicates the first CSI-RS resource by indicating the second CSI-RS resource and the time offset, so that the signaling overhead of configuring the first CSI-RS resource can be reduced.
  • the configuration information of the first CSI-RS resource or the configuration information of the first CSI-RS resource set includes the first CSI-RS resource.
  • a period value and a second period value the first period value is applied to the first CSI-RS resource, and if the first BWP is activated as an activated BWP, the second period value is applied to the first CSI-RS resource.
  • the terminal device determines the period of the first CSI-RS resource according to whether the first BWP is an inactive BWP or not.
  • the period of the first CSI-RS can be adaptively adjusted based on whether the first BWP is an activated BWP.
  • the method before sending the first CSI report, further includes: determining a time interval between the first CSI-RS resource and the first resource is greater than or equal to a first threshold; the first CSI-RS resource is measured to determine the first CSI, where the first resource is a resource for activating a bearer channel or signal on the BWP.
  • the method before sending the first CSI report, the method further includes: determining that a difference between the first CSI and the third CSI is greater than or equal to The second threshold, wherein the third CSI is the CSI that has been sent and determined according to the resources on the first BWP.
  • a communication method is provided, and the method can be performed by a network device or a module (eg, a chip) configured in (or used for) the network device.
  • a module eg, a chip
  • the method includes: sending first information, where the first information is used to indicate first configuration information, the first configuration information is used to configure a first channel state information CSI report, the first CSI report is related to the first partial bandwidth BWP
  • the first channel state information reference signal CSI-RS resource on the CSI-RS resource is associated with the first BWP, and the first BWP is an inactive BWP; the first CSI report is received, and the first CSI report includes the first CSI, and the first CSI is obtained by measuring the first CSI-RS resource.
  • a third aspect provides a communication device.
  • the device may include a module corresponding to executing the method/operation/step/action described in the first aspect, and the module may be a hardware circuit or a software , or it can be implemented by a hardware circuit combined with software.
  • the device includes: a transceiver unit configured to receive first information, where the first information is used to indicate first configuration information, the first configuration information is used to configure the first channel state information CSI report, and the The first CSI report is associated with a first channel state information reference signal CSI-RS resource on a BWP of a first partial bandwidth, and the first BWP is an inactive BWP; a processing unit configured to measure the first CSI-RS resource obtaining the first CSI; the transceiver unit is further configured to send the first CSI report, where the first CSI report includes the first CSI.
  • the first CSI report is further associated with a second CSI-RS resource on a second BWP
  • the second BWP is an activated BWP
  • the The first CSI report further includes second CSI, where the second CSI is obtained by measuring the second CSI-RS resource.
  • the first configuration information includes first indication information, where the first indication information is used to indicate the first CSI-RS resource.
  • the first indication information is specifically used to indicate first CSI resource configuration information
  • the first CSI resource configuration information is used to indicate at least one CSI-RS resource A set
  • the at least one CSI-RS resource set includes a first CSI-RS resource set
  • the first CSI-RS resource set includes the first CSI-RS resource.
  • the first CSI resource configuration information includes identification information of the first BWP.
  • the configuration information of the first CSI-RS resource set includes identification information of the first BWP.
  • the first CSI resource configuration information includes second indication information, where the second indication information is used to indicate the first CSI-RS resource set.
  • the configuration information of the first CSI-RS resource includes identification information of the first BWP.
  • the configuration information of the first CSI-RS resource set includes third indication information, where the third indication information is used to indicate the first CSI-RS resource.
  • the first configuration information includes fourth indication information
  • the fourth indication information is used to indicate the second configuration information
  • the second configuration information is used to indicating the second CSI-RS resource and the time offset
  • the processing unit is further configured to determine the first CSI-RS resource according to the second CSI-RS resource and the time offset .
  • the configuration information of the first CSI-RS resource or the configuration information of the first CSI-RS resource set includes the first CSI-RS resource.
  • a period value and a second period value the first period value is applied to the first CSI-RS resource, and if the first BWP is activated as an activated BWP, the second period value is applied to the first CSI-RS resource.
  • the processing unit before sending the first CSI report, is specifically configured to make a time between the first CSI-RS resource and the first resource When the interval is greater than or equal to the first threshold, the first CSI is obtained by measuring the first CSI-RS resource, where the first resource is a resource for activating a bearer channel or signal on the BWP.
  • the processing unit before the transceiver unit is configured to send the first CSI report, is further configured to determine a difference between the first CSI and the third CSI The difference is greater than or equal to a second threshold, wherein the third CSI is the CSI that has been sent and determined according to the resources on the first BWP.
  • a communication device in a design, the device may include a module corresponding to executing the method/operation/step/action described in the second aspect, and the module may be a hardware circuit or a software , or it can be implemented by a hardware circuit combined with software.
  • the apparatus includes: a processing unit configured to determine first information, where the first information is used to indicate first configuration information, and the first configuration information is used to configure the first channel state information CSI report, the The first CSI report is associated with the first channel state information reference signal CSI-RS resource on the first partial bandwidth BWP, and the first BWP is an inactive BWP; a transceiver unit is used to send the first information; the transceiver unit It is also used for receiving the first CSI report, where the first CSI report includes the first CSI, and the first CSI is obtained by measuring the first CSI-RS resource.
  • a communication apparatus including a processor.
  • the processor may implement the first aspect and the method in any possible implementation manner of the first aspect.
  • the communication device further includes a memory, and the processor is coupled to the memory and can be configured to execute instructions in the memory, so as to implement the first aspect and the method in any possible implementation manner of the first aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, which are not limited.
  • the communication apparatus is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip configured in the terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication apparatus including a processor.
  • the processor may implement the method in the second aspect and any possible implementation manner of the second aspect.
  • the communication device further includes a memory, and the processor is coupled to the memory and can be configured to execute instructions in the memory, so as to implement the second aspect and the method in any possible implementation manner of the second aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication apparatus is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip configured in a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method of the first aspect or the second aspect and any possible implementation of the first aspect or the second aspect .
  • the above-mentioned processor may be one or more chips
  • the input circuit may be input pins
  • the output circuit may be output pins
  • the processing circuit may be transistors, gate circuits, flip-flops and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a computer program product comprising: a computer program (also referred to as code, or instructions), which, when the computer program is executed, causes the computer to execute the above-mentioned first aspect or the second aspect and the method in any possible implementation manner of the first aspect or the second aspect.
  • a computer program also referred to as code, or instructions
  • a computer-readable storage medium stores a computer program (also referred to as code, or instruction), when it is run on a computer, causing the computer to execute the above-mentioned first aspect or A method of the second aspect and any possible implementation of the first aspect or the second aspect.
  • a computer program also referred to as code, or instruction
  • a communication system including the aforementioned at least one terminal device and at least one network device.
  • FIG. 1 is a schematic block diagram of a communication system applicable to an embodiment of the present application
  • Fig. 2 is a schematic flow chart of the communication method provided by the present application.
  • Fig. 3 is a schematic diagram of the communication method provided by the present application.
  • Fig. 4 is another schematic diagram of the communication method provided by the present application.
  • 5 is a schematic diagram of the time offset between CSI-RS resources provided by the present application.
  • FIG. 6 is a schematic diagram of a time offset and a frequency offset between CSI-RS resources provided by the present application
  • FIG. 7 is a schematic block diagram of an example of a communication device of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device applicable to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a network device suitable for this embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • 5th generation, 5G fifth generation
  • future communication system such as sixth generation (6th generation, 6G) communication system
  • 6G sixth generation
  • NR new radio
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, for example, the network device 110 shown in FIG. 1 .
  • the wireless communication system 100 may further include at least one terminal device, for example, the terminal device 120 shown in FIG. 1 .
  • the network device 110 may configure one or more BWPs for the terminal device 120 , and activate one of the BWPs for the network device 110 to communicate with the terminal device 120 .
  • the technical solutions provided in the embodiments of the present application can be applied to various communication scenarios, for example, can be applied to one or more of the following communication scenarios: eMBB communication, URLLC, machine type communication (MTC), mMTC, device Device-to-device (D2D) communication, vehicle to everything (V2X) communication, vehicle to vehicle (V2V) communication, vehicle to network (V2N), vehicle to vehicle Infrastructure (Vehicle to Infrastructure, V2I), Vehicle to Pedestrian (V2P), and Internet of Things (IoT), etc.
  • the mMTC may include one or more of the following communications: communications in industrial wireless sensor networks (IWSN), communications in video surveillance (video surveillance) scenarios, and wearable device communications Wait.
  • IWSN industrial wireless sensor networks
  • video surveillance video surveillance
  • wearable device communications Wait wearable device communications Wait.
  • the communication between the network device and the terminal device includes: the network device sends a downlink signal to the terminal device, and/or the terminal device sends an uplink signal to the network device.
  • the signal can also be replaced with information or data, etc.
  • the terminal device involved in the embodiments of the present application may also be referred to as a terminal and a UE.
  • the terminal may be a device with wireless transceiving function. Terminals can be deployed on land, including indoors, outdoors, handheld, and/or vehicle; can also be deployed on water (such as ships, etc.); and can also be deployed in the air (such as aircraft, balloons, and satellites, etc.).
  • the terminal equipment may be user equipment (user equipment, UE). UEs include handheld devices, in-vehicle devices, wearable devices, or computing devices with wireless communication capabilities. Exemplarily, the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function.
  • the terminal device may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, intelligent A wireless terminal in a power grid, a wireless terminal in a smart city, and/or a wireless terminal in a smart home, and so on.
  • VR virtual reality
  • AR augmented reality
  • a wireless terminal in a power grid a wireless terminal in a smart city
  • a wireless terminal in a smart home and so on.
  • the network device involved in the embodiments of the present application includes a base station (base station, BS), which may be a device deployed in a wireless access network and capable of wirelessly communicating with a terminal device.
  • the base station may have various forms, such as macro base station, micro base station, relay station or access point.
  • the base station involved in the embodiments of the present application may be a base station in a 5G system, a base station in an LTE system, or a base station in other systems, which is not limited.
  • the base station in the 5G system can also be called a transmission reception point (TRP) or a next generation Node B (generation Node B, gNB or gNodeB).
  • TRP transmission reception point
  • gNB next generation Node B
  • the base station may be an integrated base station, or may be a base station separated into multiple network elements, which is not limited.
  • the base station is a base station in which a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) are separated, that is, the base station includes a CU and a DU.
  • “/” may indicate that the objects associated before and after are an “or” relationship, for example, A/B may indicate A or B; “and/or” may be used to describe that there are three types of associated objects A relationship, for example, A and/or B, can mean that A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.
  • words such as “first” and “second” may be used to distinguish technical features with the same or similar functions. The words “first”, “second” and the like do not limit the quantity and execution order, and the words “first”, “second” and the like do not limit the difference.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or illustrations, and any embodiment or design solution described as “exemplary” or “for example” should not be construed are preferred or advantageous over other embodiments or designs.
  • the use of words such as “exemplary” or “such as” is intended to present the relevant concepts in a specific manner to facilitate understanding.
  • At least one (species) may also be described as one (species) or multiple (species), and the multiple (species) may be two (species), three (species), four (species) ) or more (species), which is not limited in this application.
  • CSI is used to characterize channel quality, and both uplink and downlink channel information can be called CSI.
  • CSI measurement refers to that nodes in the network obtain CSI by measuring reference signal resources.
  • the network device can obtain uplink CSI by measuring the sounding reference signal (sounding reference resource, SRS) resources sent by the terminal device, and the terminal device can The downlink is obtained by measuring the channel state information-reference signal (CSI-RS) or the synchronization signal block and the physical broadcast channel (PBCH) block (synchronization signal and PBCH block, SSB) sent by the network device.
  • CSI-RS channel state information-reference signal
  • PBCH physical broadcast channel
  • SSB synchronization signal and PBCH block
  • the CSI report refers to a report sent by a terminal device to a network device and used to carry downlink CSI.
  • the UE measures the downlink reference signal to obtain CSI.
  • the CSI may include a channel quality indicator (CQI), a precoding matrix indicator (PMI), and a CSI-RS resource indicator (CSI-RS resource indicator, CRI) , SSB resource indicator (SSBRI), layer indicator (LI), rank indicator (RI), layer 1 reference signal receiving power (layer 1 reference signal receiving power, L1-RSRP), layer 1 signal Interference-to-noise ratio (layer1signal interference noise ratio, L1-SINR), etc., among which, CQI is used to indicate the current channel judged by the terminal device can support under the premise of ensuring the predefined block error ratio (block error ratio, BLER).
  • block error ratio block error ratio
  • each CQI index can correspond to a set of modulation methods, target code rate and transport block size through the predefined CQI table;
  • PMI is the index of the precoding matrix in the predefined codebook, the precoding matrix indicated by the PMI Can represent channel information;
  • CRI and SSBRI are used to indicate the index of CSI-RS resources and the index of SSB resources, respectively, and the corresponding beam can be determined through CRI and SSBRI; LI indicates the layer with the best channel quality, and RI indicates the downlink recommended by the terminal equipment.
  • L1-RSRP is used to instruct the terminal device to measure the received power of the reference signal obtained by CSI-RS or SSB
  • L1-SINR is used to instruct the terminal device to measure the CSI-RS or SSB to obtain the signal-to-interference-noise ratio.
  • a BWP is a plurality of continuous physical resource blocks (PRBs) in the frequency domain, and is generally configured by a network device for a terminal device. End devices receive or send data within the BWP.
  • PRBs physical resource blocks
  • End devices receive or send data within the BWP.
  • the concept of BWP is introduced in order for the network equipment to flexibly support different bandwidth capabilities of different types of terminal equipment.
  • the network device divides a part of the bandwidth region for the terminal device within the bandwidth of the working carrier, the BWP is a subset within the system carrier bandwidth, and the multiple BWPs may overlap in the frequency domain.
  • the network device can activate one of the downstream BWPs (that is, the downstream activated BWP) or the upstream BWP (that is, the upstream activated BWP) for the terminal device from the configured BWPs.
  • the network device sends the physical downlink shared channel (physical downlink) to the terminal device on the downstream activated BWP. shared channel, PDSCH) and physical downlink control channel (physical downlink control channel PDCCH) and other downlink channels or signals, and the terminal device sends the physical downlink shared channel to the network device on the uplink activated BWP (physical uplink shared channel, PUSCH) Or uplink channels or signals such as a physical uplink control channel (PUCCH).
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the carrier bandwidth of the network device is 100MHz
  • the bandwidth capability (that is, the maximum working bandwidth) of a terminal device accessing the network is 40MHz.
  • the network device can configure one or more BWPs for the terminal device within the carrier bandwidth of 100MHz, for example , the bandwidth of the BWP configured by the network device for the terminal device may be a BWP less than or equal to 40 MHz, such as 40 MHz and 20 MHz.
  • the network device communicates with the terminal device on the activated BWP.
  • the network device When the channel condition of the activated BWP in which the network device communicates with the terminal device deteriorates, the network device will replace the activated BWP for the terminal device. However, in the current mobile communication, the network device can only obtain the CSI of the activated BWP reported by the terminal device. Before the terminal device successfully switches to the replaced activated BWP, since the BWP is an inactive BWP, the network device cannot obtain the BWP. If the channel quality of the BWP is also relatively poor, it may cause the network device to continuously replace and activate the BWP for the terminal device.
  • the present application proposes a communication method, in which the network device can instruct the terminal device to measure the CSI-RS resources on the inactive BWP to obtain the CSI on the inactive BWP, so that the network device can select the channel condition based on the CSI on the inactive BWP.
  • a good BWP is replaced with an activated BWP.
  • FIG. 2 is a schematic flowchart of the communication method provided by the present application.
  • the network device and the terminal device shown in FIG. 2 communicate on the second BWP, that is, the second BWP is the activated BWP.
  • the network device sends first information to the terminal device, where the first information is used to indicate first configuration information, where the first configuration information is used to configure a first CSI report, and the first CSI report is related to the first CSI report on the first BWP CSI-RS resources are associated, and the first BWP is an inactive BWP.
  • the terminal device receives the first information from the network device.
  • the network device may send a radio resource control (radio resource control, RRC) message to the terminal device, where the RRC message includes configuration information of at least one CSI report, and the configuration information of the at least one CSI report includes the first configuration information.
  • RRC radio resource control
  • the first information is an RRC message, a media access control (media access control, MAC) control element (control element, CE) or downlink control information (downlink control information, DCI).
  • a media access control media access control
  • CE control element
  • DCI downlink control information
  • the first CSI report is a periodic report
  • the first information is an RRC message
  • the terminal device may periodically send the first CSI report to the network device according to the first configuration information.
  • the first configuration information includes a period value and an offset parameter of the first CSI report, and the terminal device may determine the time to send the first report according to the period value and the offset.
  • the present application is not limited to this.
  • the first CSI report is a semi-persistent report
  • the first information is a MAC CE
  • the network device may activate the first CSI report by sending a MAC CE to the terminal device. After receiving the MAC CE, the terminal device may periodically send the first CSI report according to the first configuration information.
  • the present application is not limited to this.
  • the first CSI report is an aperiodic (aperiodic) report
  • the first information is downlink control information (downlink control information, DCI).
  • the network device After the network device configures the terminal device with the first CSI report through the RRC message, it can trigger the terminal device to send the first CSI report through DCI. After receiving the DCI, the terminal device may send the first CSI report to the network device once according to the first configuration information.
  • the present application is not limited to this.
  • the association of the first CSI report with the first CSI-RS resource means that the first CSI report is used to report CSI obtained after measuring the first CSI-RS.
  • the reference signal resources measured by the terminal equipment or the network equipment carry reference signals
  • the CSI obtained by the terminal equipment or the network equipment by measuring the reference signal resources may specifically be the reference signals carried on the reference signal resources measured by the terminal equipment.
  • get CSI the terminal equipment measures CSI-RS resources to obtain CSI, which can be replaced by the terminal equipment measures the CSI-RS carried by the CSI-RS resources to obtain CSI
  • the network equipment measures SRS resources to obtain CSI It can be understood that the network equipment measures the SRS resources to bear SRS to get CSI.
  • the first configuration information includes first indication information, where the first indication information is used to indicate the first CSI-RS resource.
  • the first indication information may specifically indicate first CSI resource configuration information, where the first CSI resource configuration information is used to indicate at least one CSI-RS resource set, and the at least one CSI-RS resource set includes the first CSI - A set of RS resources, the first set of CSI-RS resources includes the first CSI-RS resources.
  • the first configuration information indicates the first CSI resource configuration information associated with the first configuration information through the first indication information.
  • the resources indicated by the first CSI resource configuration information are resources related to the first CSI report.
  • the first configuration information may be written as CSI-ReportConfig, and the format of the first configuration information may be as follows.
  • the first indication information may be channel measurement resource indication information, for example, it may be written, the first indication information indicates identification information of the first CSI resource configuration information associated with the first CSI report, that is, CSI-ResourceConfigId. And, the first configuration information may further include identification information of the first configuration information and other information related to the first CSI report, and the present application is not limited thereto.
  • the manner in which the network device notifies the terminal device that the first CSI-RS resource is a resource on the first BWP includes, but is not limited to, the following manners.
  • the first CSI resource configuration information includes identification information of the first BWP.
  • the at least one CSI-RS resource set configured by the first CSI resource configuration information is all resources on the first BWP.
  • the first configuration information is associated with the first CSI resource configuration information, that is, the first indication information in the first configuration information indicates the first CSI resource configuration information, and the first CSI resource configuration information is used to indicate n CSI-RS resource sets, such as CSI-RS resource set 1, . . . , CSI-RS resource set n, where n is greater than or equal to 1.
  • the first CSI resource configuration information includes identification information of the first BWP. Therefore, the set of n CSI-RS resources configured by the first CSI resource configuration information are resources on the first BWP.
  • the first CSI-RS resource is a resource in one resource set of the n CSI-RS resource sets.
  • the terminal device determines the first configuration information indicated by the first information and the first CSI resource configuration information associated with the first configuration information, and determines according to the identification information of the first BWP in the first CSI resource configuration information , determining that the CSI-RS resources configured by the first CSI resource configuration information are all resources on the first BWP, and the terminal device measures the CSI-RS resources configured by the first CSI resource configuration information to obtain corresponding CSI.
  • the terminal device can measure the reference signal resources on the BWP other than the activated BWP (ie, the inactive BWP), and obtain the CSI of the inactive BWP, but the present application is not limited to this.
  • the first CSI resource configuration information may be written as CSI-ResourceConfig, and the format of the first CSI resource configuration information may be as follows.
  • the first CSI resource configuration information includes identification information CSI-ResourceConfigId of the first CSI resource configuration information, and identification information BWP-ID1 of the first BWP, and the BWP-ID1 indicates the information indicated by the first CSI resource configuration information.
  • the resources are all resources on the first BWP.
  • the first CSI resource configuration information further includes a CSI-RS resource set list, which can be written as a CSI-RS-ResourceSetList.
  • the CSI-RS resource set list indicates at least a A set of CSI-RS resources.
  • maxNrofCSI-RS-ResourceSetsPerConfig represents the maximum value of the number of resource sets. However, the present application is not limited to this.
  • the first configuration information may indicate a plurality of CSI resource configuration information, and the identification information of the BWP included in the plurality of CSI resource configuration information is different.
  • the first configuration information is further associated with the second CSI resource configuration information
  • the second CSI resource configuration information may include identification information of BWPs other than the first BWP.
  • the first configuration information is associated with the first CSI resource configuration information and the second CSI resource configuration information
  • the first CSI resource configuration information includes the identification information of the first BWP. Therefore, the first CSI resource configuration information indicates The first CSI-RS resource on the first BWP, that is, the resource on the inactive BWP.
  • the second CSI resource configuration information includes identification information of the second BWP. Therefore, the second CSI resource configuration information indicates the second CSI-RS resource on the second BWP, that is, the resource on the activated BWP.
  • the terminal device After receiving the first information, the terminal device determines that the first configuration information is activated, and measures both the first CSI-RS resource on the first BWP and the second BWP according to the two CSI resource configuration information associated with the first configuration information.
  • the second CSI-RS resource, and the measured CSI corresponding to the first BWP and the second BWP is reported to the network device in the first CSI report.
  • the present application is not limited to this. According to this solution, after activating one CSI report through the first information, the terminal device can measure and report CSI information on multiple BWPs (eg, activated BWPs and inactive BWPs). It can improve work efficiency and reduce signaling overhead.
  • the multiple CSI resource configuration information associated with the first configuration information indicates that the types of CSI-RS resources are the same.
  • the types of CSI-RS resources include CSI-RS resources for channel information measurement, CSI-RS resources for interference measurement, non-zero power CSI-RS resources, zero power interference measurement CSI-RS resources, or One or more of the non-zero power interference measurement CSI-RS resources.
  • the configuration information of the first CSI-RS resource set includes the identification information of the first BWP.
  • the first CSI resource configuration information includes second indication information, where the second indication information is used to indicate the first CSI-RS resource set.
  • the first CSI resource configuration information includes identification information of the first CSI-RS resource set, and the first CSI resource configuration information indicates the first CSI-RS resource set through the identification information of the first CSI-RS resource set.
  • the first CSI resource configuration information may include a list of CSI-RS resource sets, and the list includes identification information of at least one CSI-RS resource set, including identification information of the first CSI-RS resource set.
  • the terminal device may determine that the first CSI report is associated with the first CSI-RS resource set by using the identification information of the first CSI-RS resource set in the CSI-RS resource set list. That is, the first CSI report may include CSI obtained by the terminal device by measuring the CSI-RS resources in the first CSI-RS resource set.
  • the first CSI-RS resource set is configured through configuration information of the first CSI-RS resource set.
  • the configuration information of the first CSI-RS resource set includes the identification information of the first CSI-RS resource set and the identification information of the first BWP, that is, the terminal device can determine the first BWP according to the identification information of the first BWP.
  • the resources in the CSI-RS resource set are resources on the first BWP. That is, the resources in the first CSI-RS resource set associated with the first CSI report are resources on the first BWP.
  • the BWP where the resources in the CSI-RS resource set are located is the identification of the BWP included in the first CSI resource configuration information The BWP indicated by the message.
  • the configuration information of the first CSI-RS resource set may be written as CSI-RS-ResourceSet, and the format of the configuration information of the first CSI-RS resource set may be as follows.
  • the configuration information of the first CSI-RS resource set includes the identification information CSI-RS-ResourceSetId of the first CSI-RS resource set, and the identification information BWP-ID1 of the first BWP, and the BWP-ID1 indicates the first CSI -
  • the resources in the RS resource set are all resources on the first BWP.
  • the configuration information of the first CSI-RS resource set also indicates, through CSI-RS-Resources, the identification information of at least one CSI-RS resource included in the first CSI-RS resource set, that is, CSI-RS-ResourceId, where maxNrofCSI- RS-ResourcesPerSet is the maximum number of the at least one CSI-RS resource, that is, the maximum number of CSI-RS resources included in one CSI-RS resource set.
  • maxNrofCSI- RS-ResourcesPerSet is the maximum number of the at least one CSI-RS resource, that is, the maximum number of CSI-RS resources included in one CSI-RS resource set.
  • the multiple CSI-RS resource sets indicated by the first CSI resource configuration information may be CSI-RS resource sets on different BWPs.
  • the first CSI resource configuration information indicates the second CSI-RS resource set in addition to the first CSI-RS resource set.
  • the second CSI-RS resource set is configured by the configuration information of the second CSI-RS resource set, and the configuration information of the second CSI-RS resource set includes the identification information of the second BWP.
  • the identification information of the BWP determines that the CSI-RS resources in the second CSI-RS resource set are all the resources on the activated BWP, that is, the resources on the second BWP.
  • the terminal device may determine the first CSI-RS resource set and the second CSI-RS resource set associated with the first CSI report by using the first CSI resource configuration information.
  • the terminal device measures both the CSI-RS resources in the first CSI-RS resource set on the first BWP and the second CSI-RS resources in the second CSI-RS resource set on the second BWP, and measures the CSI-RS resources in the first CSI-RS resource set on the second BWP.
  • the measured CSI corresponding to the first BWP and the second BWP is reported to the network device.
  • the terminal device can measure and report CSI information on multiple BWPs (eg, activated BWPs and inactive BWPs). It can improve work efficiency and reduce signaling overhead.
  • the configuration information of the first CSI-RS resource includes the identification information of the first BWP.
  • the configuration information of the first CSI-RS resource set includes third indication information, where the third indication information is used to indicate the first CSI-RS resource.
  • the configuration information of the first CSI-RS resource set includes identification information of the first CSI-RS resource, indicating that the first CSI-RS resource set includes the first CSI-RS resource. That is, the configuration information of the first CSI-RS resource set indicates the first CSI-RS resource through the identification information of the first CSI-RS resource.
  • the first CSI-RS resource is configured by the configuration information of the first CSI-RS resource.
  • the identification information of the first BWP may be used to indicate that the first CSI-RS resource is a resource on the first BWP.
  • the BWP where the first CSI-RS resource is located is the identification of the BWP included in the configuration information of the first CSI-RS resource set The BWP indicated by the information, or the BWP indicated by the identification information of the BWP included in the first CSI resource configuration information.
  • the configuration information of the first CSI-RS resource may be written as CSI-RS-Resource, and the format of the configuration information of the first CSI-RS resource is as follows.
  • the configuration information of the first CSI-RS resource includes identification information CSI-RS-ResourceId of the first CSI-RS resource, which is used to identify the first CSI-RS resource. and the identification information BWP-ID1 including the first BWP, indicating that the first CSI-RS resource is a resource on the first BWP.
  • the configuration information of the first CSI-RS resource may also include other information, which is not limited in this application.
  • the multiple CSI-RS resources included in the first CSI-RS resource set may be CSI-RS resources on different BWPs.
  • the first CSI-RS resource set includes the second CSI-RS resource in addition to the first CSI-RS resource.
  • the second CSI-RS resource is configured by the configuration information of the second CSI-RS resource, and the configuration information of the second CSI-RS resource includes the identification information of the second BWP, and the terminal device can use the identification information of the second BWP according to the identification information of the second BWP.
  • the information determines that the second CSI-RS resource is an activated BWP, that is, a resource on the second BWP.
  • the terminal device may determine the first CSI-RS resource and the second CSI-RS resource associated with the first CSI report and the first CSI report.
  • the terminal device measures both the first CSI-RS resource on the first BWP and the second CSI-RS resource on the second BWP, and reports the measured first BWP and second BWP to the network device in the first CSI report Corresponding CSI respectively.
  • the terminal device can measure and report CSI information on multiple BWPs (eg, activated BWPs and inactive BWPs). It can improve work efficiency and reduce signaling overhead.
  • the configuration information of the CSI report (such as the first configuration information), the CSI resource configuration information (such as the first CSI resource configuration information, the second CSI resource configuration information) and the configuration information of the CSI resource set (such as configuration information of the first CSI-RS resource set, configuration information of the second CSI-RS resource set) and configuration information of CSI-RS resources (such as configuration information of the first CSI-RS resource, configuration of the second CSI-RS resource information) can be carried in the RRC message sent by the network device to the terminal device, and the above configuration information can be carried in the same RRC message or in different RRC messages.
  • the terminal device obtains the above configuration information through the received RRC message.
  • the present application is not limited to this.
  • the above describes the implementation manner in which the network device indicates the first CSI-RS resource to the terminal device through the first indication information in the first configuration information.
  • the following describes the network device indicating the first CSI-RS resource and activating the second CSI on the BWP.
  • the mode of time offset between RS resources which indirectly indicates the mode of the first CSI-RS resource.
  • the first configuration information includes fourth indication information, where the fourth indication information is used to indicate the second configuration information, and the second configuration information is used to indicate the second CSI-RS resource and the time offset,
  • the terminal device and the network device may determine the first CSI-RS resource according to the second CSI-RS resource and the time offset.
  • the second configuration information may be second CSI configuration information, configuration information of a second CSI-RS resource set, or configuration information of a second CSI-RS resource.
  • the second CSI-RS resource is configured by the configuration information of the second CSI-RS resource.
  • the terminal device may determine the time domain and frequency domain positions (instant frequency positions) of the second CSI-RS according to the configuration information of the second CSI-RS resources.
  • the terminal device determines the time offset of the first CSI-RS resource according to the second CSI-RS resource and the time offset in the second configuration information.
  • the terminal device and the network device determine the time domain location of the first CSI-RS resource according to a preset rule.
  • the preset rule is to determine the time domain position of the CSI-RS resource on the inactive BWP according to the difference between the identification information of the active BWP and the inactive BWP and the multiple of the time offset of the second CSI-RS resource offset .
  • the second configuration information indicates the second CSI-RS resource and the time offset ⁇ t.
  • the network device configures three downlink BWPs for the terminal device, BWP1, BWP2 and BWP3, where BWP2 is the activated BWP.
  • the terminal device may determine the time-frequency position of the second CSI-RS resource in the BWP2 according to the configuration information of the second CSI-RS resource.
  • the identification information of BWP1 is 1, the identification information of BWP2 is 2, and the identification information of BWP3 is 3.
  • the amount is 1 times the ⁇ t, that is, ⁇ t.
  • the present application is not limited to this.
  • the second CSI-RS resource may be a periodic resource
  • the preset rule is to determine the time domain offset of the CSI-RS resource on the inactive BWP and the first A multiple of the time offset between the time domain offsets of two CSI-RS resources.
  • the second configuration information indicates the period of the second CSI-RS, the time domain offset t2 of the second CSI-RS, and the time offset ⁇ t.
  • the network device configures three downlink BWPs for the terminal device, BWP1, BWP2, and BWP3, where BWP2 is the activated BWP.
  • the terminal device may determine the time-frequency position of the second CSI-RS resource in the BWP2 according to the configuration information of the second CSI-RS resource.
  • the identification information of BWP1 is 1, the identification information of BWP2 is 2, and the identification information of BWP3 is 3.
  • the time offset between the domain offset (ie, an example of the first CSI-RS) and the time domain offset of the second CSI-RS is -1 times ⁇ t, ie - ⁇ t, ie the CSI-RS on BWP1
  • the time domain offset is t2- ⁇ t.
  • the time domain offset of the CSI-RS on BWP3 ie, another example of the first CSI-RS
  • the time offset between offsets is 1 times ⁇ t, that is, ⁇ t, that is, the time domain offset of the CSI-RS resources on BWP3 is t2+ ⁇ t.
  • the period of the CSI-RS resources on the inactive BWP can be the same as the period of the CSI-RS resources on the activated BWP, or can be configured independently. However, the present application is not limited to this.
  • the second configuration information further includes identification information of the first BWP corresponding to the time offset.
  • the second configuration information indicates the second CSI-RS resource, and the time offset ⁇ t and the identification information of the first BWP corresponding to the time offset ⁇ t.
  • the terminal device may determine the time domain position of the first CSI-RS resource on the first BWP according to the time offset ⁇ t.
  • the time offset is a time interval value or the number of time units.
  • the time interval value may be a time interval value in units of microseconds, milliseconds, or seconds
  • the time unit may be a frame, a subframe, a time slot, or a symbol.
  • the frequency domain interval between the first CSI-RS resource and the frequency domain reference point of the first BWP may be the same as the frequency domain interval between the second CSI-RS resource and the frequency domain reference point of BWP2, and the th One CSI-RS resource may have the same frequency domain width as the second CSI-RS resource, wherein the frequency domain reference point may be the first PRB or the first subcarrier in the BWP, etc., but the present application is not limited thereto.
  • the second configuration information further includes a frequency domain offset
  • the terminal device may determine the time-frequency position of the first CSI-RS resource according to the second CSI-RS resource, the time offset, and the frequency domain offset, and The first CSI-RS resource may have the same frequency domain width as the second CSI-RS resource.
  • the terminal device and the network device determine the frequency domain position of the first CSI-RS resource according to a preset rule and the frequency domain offset.
  • the second configuration information includes a frequency domain offset ⁇ f
  • the preset rule is that within the current carrier bandwidth, the frequency domain offset between two CSI-RS resources with adjacent frequency domain serial numbers is ⁇ f, and the CSI-RS resource is ⁇ f.
  • the frequency domain sequence numbers of the RS resources are in the current carrier bandwidth and are sorted in order from low to high in the frequency domain. As shown in FIG.
  • the frequency domain sequence number is greater than the frequency domain start position 3 of CSI-RS resource 1 of the second CSI-RS resource and the second CSI-RS
  • the difference between the frequency domain termination positions 2 of the resources is ⁇ f
  • the frequency domain serial number is smaller than the frequency domain termination position 1 of the CSI-RS resource 2 of the second CSI-RS resource and the frequency domain start position 2 of the second CSI-RS resource
  • the difference is ⁇ f, and so on.
  • the second configuration information further includes identification information of the first BWP corresponding to the frequency domain offset.
  • the first CSI report is associated with the first CSI-RS resource on the first BWP.
  • the terminal device After determining the time-frequency position of the second CSI-RS resource on the second BWP, the terminal device determines the frequency-domain position of the first CSI-RS resource according to the second CSI-RS resource and the frequency-domain offset.
  • the present application is not limited to this.
  • the frequency domain offset may be a frequency interval value or the number of frequency domain units.
  • the frequency interval value may be a frequency interval value in units of Hertz Hz, Kilohertz kHz, or Megahertz MHz
  • the frequency domain unit may be a subcarrier, a PRB, or a PRB group (PRB group, RBG).
  • the above describes an implementation manner in which the terminal device determines the first CSI-RS resource associated with the first CSI report by using the first configuration information.
  • the configuration information of the first CSI-RS resource or the configuration information of the first CSI-RS resource set includes a first period value and a second period value of the first CSI-RS resource
  • the first BWP is an inactive BWP
  • a first period value is applied to the first CSI-RS resource
  • the second period value is applied to the first CSI-RS resource.
  • the network device provides two period values when configuring the first CSI-RS resource for the terminal device.
  • the first BWP is an inactive BWP
  • the period of the first CSI-RS resource is the first period value.
  • a BWP is an activated BWP
  • the period of the first CSI-RS resource is the second period value.
  • the frequency of measuring the CSI of the inactive BWP may be less than the frequency of measuring the CSI for link adaptation on the active BWP. Therefore, the period value corresponding to CSI-RS when BWP is inactive BWP can be greater than the period value corresponding to CSI-RS when BWP is active BWP, which can reduce the number of times the terminal equipment retunes the radio frequency to measure the inactive BWP, and reduces the power of the terminal equipment. consumption.
  • the terminal device sends a first CSI report to the network device, where the first CSI report includes first CSI, and the first CSI is CSI obtained by measuring the first CSI-RS resource.
  • the network device receives the first CSI report.
  • the network device After the terminal device and the network device determine the first CSI-RS resource on the first BWP, the network device sends the first CSI-RS resource, the terminal device receives the first CSI-RS resource, and obtains the CSI information on the first BWP by measurement .
  • the terminal device can measure and obtain the CSI on the inactive BWP.
  • the network device can obtain the CSI on the inactive BWP.
  • the network device can select an inactive BWP with better channel conditions to replace it with an active BWP based on the CSI on the inactive BWP. The reliability of the communication between the network device and the terminal device can be improved.
  • the terminal device measures the first CSI-RS resource to obtain the first CSI .
  • the first resource is a resource bearing a channel or signal on the activated BWP (ie, the second BWP).
  • the terminal device when the terminal device measures the CSI-RS resources on the inactive BWP, it needs to retune the radio frequency from the active BWP to the inactive BWP, so that the terminal device cannot communicate in the active BWP. Therefore, It is stipulated that the terminal device does not measure the first CSI-RS resource if the time interval between the first CSI-RS resource and the resource carrying the uplink or downlink channel and signal on the activated BWP is less than the first threshold.
  • the first CSI-RS resource is a periodic or semi-persistent CSI-RS resource, if the time interval between the first CSI-RS in a cycle and the resource bearing uplink or downlink channels and signals on the activated BWP is less than In the case of the first threshold, the terminal device does not measure the first CSI-RS resource in the period. It can avoid the situation of activating the channel on the BWP or the failure of signal transmission, and improve the reliability of communication.
  • the terminal device measures the first CSI-RS resource to obtain the first CSI, and determines that the difference between the first CSI and the third CSI is greater than or equal to a second threshold, wherein the third The CSI is the transmitted CSI determined from the resources on the first BWP.
  • the terminal device compares the CSI of the first BWP reported previously, that is, the third CSI. If the difference between the first CSI and the third CSI is smaller than the second threshold, it can be understood that the CSI of the first BWP does not change much, and therefore, the terminal device does not report the first CSI. The overhead of the air interface can be reduced, and the power consumption of the terminal device can be reduced. If the difference between the first CSI and the third CSI is greater than or equal to the second threshold, the terminal device sends a first CSI report to the network device, where the first CSI report includes the first CSI.
  • the first CSI-RS resource is a periodic or semi-persistent CSI-RS resource
  • the third CSI may be the CSI obtained by the terminal device measuring the first CSI-RS resource in a certain period, and the first CSI is the CSI-RS resource measured by the terminal device. CSI obtained from the first CSI-RS resource in another period.
  • the third CSI is CSI obtained by measuring other resources on the first BWP.
  • the present application is not limited to this.
  • the network device can instruct the terminal device to measure the CSI-RS resources on the inactive BWP to obtain the CSI on the inactive BWP, so that the network device can obtain the CSI on the inactive BWP, which can be based on the channel on the inactive BWP. condition, activate the inactive BWP with better channel condition as the active BWP. It can reduce the situation that the network device continuously replaces and activates the BWP for the terminal device. The reliability of communication is improved.
  • the network device may also indirectly indicate the first SRS by indicating the time offset and/or frequency domain offset between the first SRS resource and the second SRS resource on the activated BWP Implementation of the resource. That is to say, the network device can also use the communication method provided in this application to notify the terminal device to send the first SRS on the uplink inactive BWP, so that the network device can measure the first SRS to determine the channel state on the uplink inactive BWP, so that The network device can select a BWP with better channel conditions and replace it with an uplink activated BWP.
  • the third configuration information is used to indicate the second SRS resource and the time offset, and the terminal device and the network device may determine the first SRS resource according to the second SRS resource and the time offset.
  • the second SRS resource is configured by the configuration information of the second SRS resource.
  • the terminal device may determine the time-frequency position of the second SRS according to the configuration information of the second SRS resource.
  • the terminal device determines the time offset of the first SRS resource according to the second SRS resource and the time offset indicated by the second configuration information.
  • the terminal device and the network device determine the time domain location of the first SRS resource according to a preset rule.
  • the preset rule is to determine the multiple of the time domain position of the SRS resource on the inactive BWP and the time offset of the second SRS resource offset according to the difference between the identification information of the active BWP and the inactive BWP.
  • the third configuration information indicates the second SRS resource and the time offset ⁇ t.
  • the network device configures three downlink BWPs for the terminal device, BWP1, BWP2 and BWP3, where BWP2 is the activated BWP.
  • the present application is not limited to this.
  • the second SRS resource may be a periodic resource
  • the preset rule is to determine the difference between the time domain offset of the SRS resource on the inactive BWP and the second SRS resource according to the difference between the identification information of the activated BWP and the inactive BWP.
  • the third configuration information indicates the period of the second SRS, the time domain offset t2 of the second SRS, and the time offset ⁇ t.
  • the network device configures three downlink BWPs for the terminal device, BWP1, BWP2, and BWP3, where BWP2 is the activated BWP.
  • the offset is ⁇ t, that is, the time domain offset of the SRS resource on BWP3 is t2+ ⁇ t.
  • the period of the SRS resource on the inactive BWP may be the same as the period of the SRS resource on the activated BWP, or may be configured independently. However, the present application is not limited to this.
  • the third configuration information further includes identification information of the first BWP corresponding to the time offset.
  • the second configuration information indicates the second SRS resource, and the time offset ⁇ t and the identification information of the first BWP corresponding to the time offset ⁇ t.
  • the terminal device may determine the time domain position of the first SRS resource on the first BWP according to the time offset ⁇ t.
  • the frequency domain interval between the first SRS resource and the frequency domain reference point of the first BWP may be the same as the frequency domain interval between the second SRS resource and the frequency domain reference point of BWP2, and the first SRS resource may be The frequency domain width is the same as that of the second SRS resource, wherein the frequency domain reference point may be the first PRB or the first subcarrier in the BWP, etc., but the present application is not limited thereto.
  • the second configuration information further includes a frequency domain offset
  • the terminal device may determine the time-frequency position of the first SRS resource according to the second SRS resource, the time offset, and the frequency domain offset, and the first SRS resource It may be the same as the frequency domain width of the second CSI-RS resource.
  • the terminal device and the network device determine the frequency domain position of the first SRS resource according to a preset rule and the frequency domain offset.
  • the third configuration information includes the frequency domain offset ⁇ f, and the preset rule is that within the current carrier bandwidth, the frequency domain offset between two SRS resources with adjacent frequency domain serial numbers is ⁇ f, and the frequency domain of the SRS resources is ⁇ f.
  • the domain numbers are in the current carrier bandwidth and are sorted from low to high in the frequency domain.
  • the third configuration information further includes identification information of the first BWP corresponding to the frequency domain offset.
  • the frequency domain offset may be a frequency interval value or the number of frequency domain units.
  • the frequency domain unit may be a subcarrier, a PRB, or a PRB group (RBG).
  • the above describes the implementation manner in which the terminal device determines the first SRS resource by using the third configuration information.
  • the configuration information of the first SRS resource or the configuration information of the first SRS resource set includes a first period value and a second period value of the first SRS resource, and the first BWP is inactive BWP, the first period value is applied to the first SRS resource, and if the first BWP is activated as the activated BWP, the second period value is applied to the first SRS resource.
  • the network device provides two period values when configuring the first SRS resource for the terminal device.
  • the first BWP is an inactive BWP
  • the period of the first SRS resource is the first period value.
  • the first BWP is an active BWP
  • the period of the first SRS resource is the first period value.
  • the period of the first SRS resource is the second period value.
  • the frequency of the network device measuring the channel state of the uplink inactive BWP can be less than that on the active BWP for the link The frequency at which the channel state is measured adaptively. Therefore, when the BWP is the inactive BWP, the corresponding period value of the SRS can be greater than the corresponding period value of the SRS when the BWP is the active BWP, which can reduce the number of times that the terminal device retunes the radio frequency to measure the inactive BWP, and reduces the power consumption of the terminal device.
  • the network device can notify the terminal device to measure the CSI-RS on the downlink inactive BWP to obtain the channel status on the downlink inactive BWP, or the network device can notify the terminal device to send the SRS on the uplink inactive BWP to obtain the channel status on the downlink inactive BWP.
  • the network device can obtain the channel state on the uplink inactive BWP by measuring the SRS on the uplink inactive BWP. Therefore, the network device can activate the inactive BWP with better channel condition as the active BWP based on the channel condition on the inactive BWP. It can reduce the situation that the network device continuously replaces and activates the BWP for the terminal device. The reliability of communication is improved.
  • each network element may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • FIG. 7 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 700 may include a transceiver unit 720 .
  • the communication apparatus 700 may correspond to the terminal equipment in the above method embodiments, or a chip configured (or used in) the terminal equipment, or other apparatuses capable of implementing the methods of the terminal equipment, Modules, circuits or units, etc.
  • the communication apparatus 700 may correspond to the terminal device in the method 200 according to the embodiment of the present application, and the communication apparatus 700 may include a unit for executing the method performed by the terminal device in the method 200 in FIG. 2 . Moreover, each unit in the communication apparatus 700 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method 200 in FIG. 2 .
  • the communication apparatus 700 may further include a processing unit 710, and the processing unit 710 may be configured to process instructions or data to implement corresponding operations.
  • the transceiver unit 720 in the communication apparatus 700 may be an input/output interface or circuit of the chip, and the processing in the communication apparatus 700 Unit 710 may be a processor in a chip.
  • the communication device 700 may further include a storage unit 730, the storage unit 730 may be used to store instructions or data, and the processing unit 710 may execute the instructions or data stored in the storage unit, so as to enable the communication device to implement corresponding operations .
  • the transceiver unit 720 in the communication apparatus 700 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the transceiver 810 in the terminal device 800 shown in FIG. 8 .
  • the processing unit 710 in the communication apparatus 700 may be implemented by at least one processor, for example, may correspond to the processor 820 in the terminal device 800 shown in FIG. 8 .
  • the processing unit 710 in the communication device 700 may also be implemented by at least one logic circuit.
  • the storage unit 730 in the communication apparatus 700 may correspond to the memory in the terminal device 800 shown in FIG. 8 .
  • the communication apparatus 700 may correspond to the network device in the above method embodiments, for example, or a chip configured (or used in) the network device, or other methods capable of implementing the network device device, module, circuit or unit, etc.
  • the communication apparatus 700 may correspond to the network device in the method 200 according to the embodiment of the present application, and the communication apparatus 700 may include a unit for executing the method performed by the network device in the method 200 in FIG. 2 . Moreover, each unit in the communication apparatus 700 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method 200 in FIG. 2 .
  • the communication apparatus 700 may further include a processing unit 710, and the processing unit 710 may be configured to process instructions or data to implement corresponding operations.
  • the transceiver unit 720 in the communication apparatus 700 may be an input/output interface or circuit of the chip, and the processing in the communication apparatus 700 Unit 710 may be a processor in a chip.
  • the communication device 700 may further include a storage unit 730, the storage unit 730 may be used to store instructions or data, and the processing unit 710 may execute the instructions or data stored in the storage unit, so as to enable the communication device to implement corresponding operations .
  • the transceiver unit 720 in the communication device 700 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the network device shown in FIG. 9 .
  • the processing unit 710 in the communication apparatus 700 may be implemented by at least one processor, for example, may correspond to the processor 920 in the network device 900 shown in FIG. 9 , and the processing unit 710 in the communication apparatus 700 may be implemented by at least one logic circuit implementation.
  • FIG. 8 is a schematic structural diagram of a terminal device 800 provided by an embodiment of the present application.
  • the terminal device 800 can be applied to the system as shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments.
  • the terminal device 800 includes a processor 820 and a transceiver 810 .
  • the terminal device 800 further includes a memory.
  • the processor 820, the transceiver 810 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals.
  • the memory is used for storing a computer program, and the processor 820 is used for executing the computer program in the memory to control the transceiver 810 to send and receive signals.
  • the above-mentioned processor 820 and the memory can be combined into a processing device, and the processor 820 is configured to execute the program codes stored in the memory to realize the above-mentioned functions.
  • the memory can also be integrated in the processor 820 or be independent of the processor 820 .
  • the processor 820 may correspond to the processing unit in FIG. 7 .
  • the transceiver 810 described above may correspond to the transceiver unit in FIG. 7 .
  • the transceiver 810 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.
  • the terminal device 800 shown in FIG. 8 can implement the process involving the terminal device in the method embodiment shown in FIG. 2 .
  • the operations and/or functions of each module in the terminal device 800 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 820 may be used to perform the actions described in the foregoing method embodiments that are implemented internally by the terminal device, and the transceiver 810 may be used to perform the operations described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action.
  • the transceiver 810 may be used to perform the operations described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action.
  • the above-mentioned terminal device 800 may further include a power supply for providing power to various devices or circuits in the terminal device.
  • the terminal device 800 may also include input and output devices, such as including one or more of an input unit, a display unit, an audio circuit, a camera and a sensor, etc.
  • the circuitry may also include speakers, microphones, and the like.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 900 may be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments.
  • the network device 900 includes a processor 920 and a transceiver 910 .
  • the network device 900 further includes a memory.
  • the processor 920, the transceiver 910 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals.
  • the memory is used to store a computer program, and the processor 920 is used to execute the computer program in the memory to control the transceiver 910 to send and receive signals.
  • the above-mentioned processor 920 and the memory can be combined into a processing device, and the processor 920 is configured to execute the program codes stored in the memory to realize the above-mentioned functions.
  • the memory can also be integrated in the processor 820 or independent of the processor 920 .
  • the processor 920 may correspond to the processing unit in FIG. 7 .
  • the transceiver 910 described above may correspond to the transceiver unit in FIG. 7 .
  • the transceiver 910 may include a receiver (or called receiver, receiving circuit) and a transmitter (or called transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.
  • the network device 900 shown in FIG. 9 can implement various processes involving the network device in the method embodiment shown in FIG. 2 .
  • the operations and/or functions of each module in the network device 900 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the network device 900 shown in FIG. 9 may be an eNB or a gNB.
  • the network device includes network devices such as CU, DU, and AAU.
  • CU may be specifically divided into CU-CP and CU-CP UP. This application does not limit the specific architecture of the network device.
  • the network device 900 shown in FIG. 9 may be a CU node or a CU-CP node.
  • the above-mentioned processor 920 may be used to perform the actions implemented by the network device described in the foregoing method embodiments, and the transceiver 910 may be used to execute the network device described in the foregoing method embodiments. Send to or receive from the terminal device. action.
  • the transceiver 910 may be used to execute the network device described in the foregoing method embodiments. Send to or receive from the terminal device. action.
  • An embodiment of the present application further provides a processing apparatus, including a processor and a (communication) interface; the processor is configured to execute the method in any of the above method embodiments.
  • the above-mentioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • MCU microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • the present application further provides a computer program product, the computer program product includes: computer program code, when the computer program code is executed by one or more processors, the computer program code including the processor
  • the apparatus executes the method in the embodiment shown in FIG. 2 .
  • the technical solutions provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented in software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a terminal device, a core network device, a machine learning device, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available media that can be accessed by a computer, or a data storage device such as a server, data center, etc. that includes one or more available media integrated.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital video discs (DVDs)), or semiconductor media, and the like.
  • the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores program codes, and when the program codes are executed by one or more processors, the processing includes the processing
  • the device of the controller executes the method in the embodiment shown in FIG. 2 .
  • the present application further provides a system, which includes the aforementioned one or more network devices.
  • the system may further include one or more of the aforementioned terminal devices.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

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

Abstract

La présente demande concerne un procédé de communication et un appareil de communication. Le procédé comprend les étapes suivantes : un équipement terminal reçoit des premières informations, les premières informations étant utilisées pour indiquer des premières informations de configuration, les premières informations de configuration étant utilisées pour configurer un premier rapport d'informations d'état de canal (CSI), le premier rapport de CSI étant associé à une première ressource de signal de référence de CSI (CSI-RS) sur une première partie de bande passante (BWP), et la première BWP étant une BWP non activée ; et l'équipement terminal envoie le premier rapport de CSI, le premier rapport de CSI comprenant des premières CSI, et les premières CSI étant obtenues par mesure de la première ressource de CSI-RS. La présente demande est censée améliorer la fiabilité des communications.
PCT/CN2021/083668 2021-03-29 2021-03-29 Procédé de communication et appareil de communication WO2022204894A1 (fr)

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PCT/CN2021/083668 WO2022204894A1 (fr) 2021-03-29 2021-03-29 Procédé de communication et appareil de communication
CN202180094981.9A CN116941205A (zh) 2021-03-29 2021-03-29 通信方法和通信装置

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Citations (4)

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Publication number Priority date Publication date Assignee Title
US20130163538A1 (en) * 2011-12-23 2013-06-27 Innovative Sonic Corporation Method and apparatus for cqi (channel quality indicator) reporting after the introduction of a new carrier in a wireless communication system
CN109413691A (zh) * 2017-08-18 2019-03-01 北京三星通信技术研究有限公司 一种报告信道状态信息的方法和装置
JP2019122003A (ja) * 2018-01-11 2019-07-22 シャープ株式会社 基地局装置、端末装置、通信方法、および、集積回路
CN110351813A (zh) * 2018-04-03 2019-10-18 维沃移动通信有限公司 一种信息上报方法、终端及网络设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130163538A1 (en) * 2011-12-23 2013-06-27 Innovative Sonic Corporation Method and apparatus for cqi (channel quality indicator) reporting after the introduction of a new carrier in a wireless communication system
CN109413691A (zh) * 2017-08-18 2019-03-01 北京三星通信技术研究有限公司 一种报告信道状态信息的方法和装置
JP2019122003A (ja) * 2018-01-11 2019-07-22 シャープ株式会社 基地局装置、端末装置、通信方法、および、集積回路
CN110351813A (zh) * 2018-04-03 2019-10-18 维沃移动通信有限公司 一种信息上报方法、终端及网络设备

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